From: zhenpengzheng zhenpengzheng@net-swift.com

driver inclusion category: feature bugzilla: 50777 CVE: NA

------------------------------------------------------------------------- This driver is based on drivers/net/ethernet/intel/ixgbe/.

Signed-off-by: zhenpengzheng zhenpengzheng@net-swift.com Acked-by: Xie XiuQi xiexiuqi@huawei.com Signed-off-by: Zhen Lei thunder.leizhen@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/netswift/Kconfig | 20 + drivers/net/ethernet/netswift/Makefile | 6 + drivers/net/ethernet/netswift/txgbe/Kconfig | 13 + drivers/net/ethernet/netswift/txgbe/Makefile | 11 + drivers/net/ethernet/netswift/txgbe/txgbe.h | 1260 +++ .../net/ethernet/netswift/txgbe/txgbe_bp.c | 875 ++ .../net/ethernet/netswift/txgbe/txgbe_bp.h | 41 + .../net/ethernet/netswift/txgbe/txgbe_dcb.h | 30 + .../ethernet/netswift/txgbe/txgbe_ethtool.c | 3381 +++++++ .../net/ethernet/netswift/txgbe/txgbe_hw.c | 7072 +++++++++++++++ .../net/ethernet/netswift/txgbe/txgbe_hw.h | 264 + .../net/ethernet/netswift/txgbe/txgbe_lib.c | 959 ++ .../net/ethernet/netswift/txgbe/txgbe_main.c | 8045 +++++++++++++++++ .../net/ethernet/netswift/txgbe/txgbe_mbx.c | 399 + .../net/ethernet/netswift/txgbe/txgbe_mbx.h | 171 + .../net/ethernet/netswift/txgbe/txgbe_mtd.c | 1366 +++ .../net/ethernet/netswift/txgbe/txgbe_mtd.h | 1540 ++++ .../net/ethernet/netswift/txgbe/txgbe_param.c | 1191 +++ .../net/ethernet/netswift/txgbe/txgbe_phy.c | 1014 +++ .../net/ethernet/netswift/txgbe/txgbe_phy.h | 190 + .../net/ethernet/netswift/txgbe/txgbe_ptp.c | 884 ++ .../net/ethernet/netswift/txgbe/txgbe_type.h | 3213 +++++++ 24 files changed, 31947 insertions(+) create mode 100644 drivers/net/ethernet/netswift/Kconfig create mode 100644 drivers/net/ethernet/netswift/Makefile create mode 100644 drivers/net/ethernet/netswift/txgbe/Kconfig create mode 100644 drivers/net/ethernet/netswift/txgbe/Makefile create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_bp.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_bp.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_dcb.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_ethtool.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_hw.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_hw.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_lib.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_main.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_mbx.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_mbx.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_mtd.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_mtd.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_param.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_phy.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_phy.h create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_ptp.c create mode 100644 drivers/net/ethernet/netswift/txgbe/txgbe_type.h

diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig index 6fde68aa13a40..208c2cee14d6c 100644 --- a/drivers/net/ethernet/Kconfig +++ b/drivers/net/ethernet/Kconfig @@ -82,6 +82,7 @@ source "drivers/net/ethernet/i825xx/Kconfig" source "drivers/net/ethernet/ibm/Kconfig" source "drivers/net/ethernet/intel/Kconfig" source "drivers/net/ethernet/xscale/Kconfig" +source "drivers/net/ethernet/netswift/Kconfig"

config JME tristate "JMicron(R) PCI-Express Gigabit Ethernet support" diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile index b45d5f626b592..bd2235ac6a97a 100644 --- a/drivers/net/ethernet/Makefile +++ b/drivers/net/ethernet/Makefile @@ -95,3 +95,4 @@ obj-$(CONFIG_NET_VENDOR_WIZNET) += wiznet/ obj-$(CONFIG_NET_VENDOR_XILINX) += xilinx/ obj-$(CONFIG_NET_VENDOR_XIRCOM) += xircom/ obj-$(CONFIG_NET_VENDOR_SYNOPSYS) += synopsys/ +obj-$(CONFIG_NET_VENDOR_NETSWIFT) += netswift/ diff --git a/drivers/net/ethernet/netswift/Kconfig b/drivers/net/ethernet/netswift/Kconfig new file mode 100644 index 0000000000000..c4b510b659ae9 --- /dev/null +++ b/drivers/net/ethernet/netswift/Kconfig @@ -0,0 +1,20 @@ +# +# Netswift network device configuration +# + +config NET_VENDOR_NETSWIFT + bool "netswift devices" + default y + ---help--- + If you have a network (Ethernet) card belonging to this class, say Y. + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all + the questions about Netswift NICs. If you say Y, you will be asked for + your specific card in the following questions. + +if NET_VENDOR_NETSWIFT + +source "drivers/net/ethernet/netswift/txgbe/Kconfig" + +endif # NET_VENDOR_NETSWIFT diff --git a/drivers/net/ethernet/netswift/Makefile b/drivers/net/ethernet/netswift/Makefile new file mode 100644 index 0000000000000..0845d08600bee --- /dev/null +++ b/drivers/net/ethernet/netswift/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Netswift network device drivers. +# + +obj-$(CONFIG_TXGBE) += txgbe/ diff --git a/drivers/net/ethernet/netswift/txgbe/Kconfig b/drivers/net/ethernet/netswift/txgbe/Kconfig new file mode 100644 index 0000000000000..5aba1985d83f8 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/Kconfig @@ -0,0 +1,13 @@ +# +# Netswift driver configuration +# + +config TXGBE + tristate "Netswift 10G Network Interface Card" + default n + depends on PCI_MSI && NUMA && PCI_IOV && DCB + ---help--- + This driver supports Netswift 10G Ethernet cards. + To compile this driver as part of the kernel, choose Y here. + If unsure, choose N. + The default is N. diff --git a/drivers/net/ethernet/netswift/txgbe/Makefile b/drivers/net/ethernet/netswift/txgbe/Makefile new file mode 100644 index 0000000000000..f8531f3356a85 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. +# +# Makefile for the Netswift 10GbE PCI Express ethernet driver +# + +obj-$(CONFIG_TXGBE) += txgbe.o + +txgbe-objs := txgbe_main.o txgbe_ethtool.o \ + txgbe_hw.o txgbe_phy.o txgbe_bp.o \ + txgbe_mbx.o txgbe_mtd.o txgbe_param.o txgbe_lib.o txgbe_ptp.o diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe.h b/drivers/net/ethernet/netswift/txgbe/txgbe.h new file mode 100644 index 0000000000000..40bb86dbf3aef --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe.h @@ -0,0 +1,1260 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + + +#ifndef _TXGBE_H_ +#define _TXGBE_H_ + +#include <net/ip.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> +#include <linux/ethtool.h> +#include <linux/if_vlan.h> +#include <net/busy_poll.h> +#include <linux/sctp.h> + +#include <linux/timecounter.h> +#include <linux/clocksource.h> +#include <linux/net_tstamp.h> +#include <linux/ptp_clock_kernel.h> +#include <linux/aer.h> + +#include "txgbe_type.h" + +#ifndef KR_POLLING +#define KR_POLLING 0 +#endif + +#ifndef KR_MODE +#define KR_MODE 0 +#endif + +#ifndef AUTO +#define AUTO 1 +#endif + +#ifndef DEFAULT_FCPAUSE +#define DEFAULT_FCPAUSE 0xFFFF /* kylinft/kylinlx : 0x3FFF default to 0xFFFF*/ +#endif + +#ifndef MAX_REQUEST_SIZE +#define MAX_REQUEST_SIZE 256 /* kylinft : 512 default to 256*/ +#endif + +#ifndef DEFAULT_TXD +#define DEFAULT_TXD 512 /*deepinsw : 1024 default to 512*/ +#endif + +#ifndef DEFAULT_TX_WORK +#define DEFAULT_TX_WORK 256 /*deepinsw : 512 default to 256*/ +#endif + +#ifndef CL72_KRTR_PRBS_MODE_EN +#define CL72_KRTR_PRBS_MODE_EN 0x2fff /*deepinsw : 512 default to 256*/ +#endif + +#ifndef SFI_SET +#define SFI_SET 0 +#define SFI_MAIN 24 +#define SFI_PRE 4 +#define SFI_POST 16 +#endif + +#ifndef KR_SET +#define KR_SET 0 +#define KR_MAIN 27 +#define KR_PRE 8 +#define KR_POST 44 +#endif + +#ifndef KX4_SET +#define KX4_SET 0 +#define KX4_MAIN 40 +#define KX4_PRE 0 +#define KX4_POST 0 +#endif + +#ifndef KX_SET +#define KX_SET 0 +#define KX_MAIN 24 +#define KX_PRE 4 +#define KX_POST 16 +#endif + + +#ifndef KX4_TXRX_PIN +#define KX4_TXRX_PIN 0 /*rx : 0xf tx : 0xf0 */ +#endif +#ifndef KR_TXRX_PIN +#define KR_TXRX_PIN 0 /*rx : 0xf tx : 0xf0 */ +#endif +#ifndef SFI_TXRX_PIN +#define SFI_TXRX_PIN 0 /*rx : 0xf tx : 0xf0 */ +#endif + +#ifndef KX_SGMII +#define KX_SGMII 0 /* 1 0x18090 :0xcf00 */ +#endif + +#ifndef KR_NORESET +#define KR_NORESET 0 +#endif + +#ifndef KR_CL72_TRAINING +#define KR_CL72_TRAINING 1 +#endif + +#ifndef KR_REINITED +#define KR_REINITED 1 +#endif + +#ifndef KR_AN73_PRESET +#define KR_AN73_PRESET 1 +#endif + +#ifndef BOND_CHECK_LINK_MODE +#define BOND_CHECK_LINK_MODE 0 +#endif + +/* Ether Types */ +#define TXGBE_ETH_P_LLDP 0x88CC +#define TXGBE_ETH_P_CNM 0x22E7 + +/* TX/RX descriptor defines */ +#if defined(DEFAULT_TXD) || defined(DEFAULT_TX_WORK) +#define TXGBE_DEFAULT_TXD DEFAULT_TXD +#define TXGBE_DEFAULT_TX_WORK DEFAULT_TX_WORK +#else +#define TXGBE_DEFAULT_TXD 512 +#define TXGBE_DEFAULT_TX_WORK 256 +#endif +#define TXGBE_MAX_TXD 8192 +#define TXGBE_MIN_TXD 128 + +#if (PAGE_SIZE < 8192) +#define TXGBE_DEFAULT_RXD 512 +#define TXGBE_DEFAULT_RX_WORK 256 +#else +#define TXGBE_DEFAULT_RXD 256 +#define TXGBE_DEFAULT_RX_WORK 128 +#endif + +#define TXGBE_MAX_RXD 8192 +#define TXGBE_MIN_RXD 128 + +#define TXGBE_ETH_P_LLDP 0x88CC + +/* flow control */ +#define TXGBE_MIN_FCRTL 0x40 +#define TXGBE_MAX_FCRTL 0x7FF80 +#define TXGBE_MIN_FCRTH 0x600 +#define TXGBE_MAX_FCRTH 0x7FFF0 +#if defined(DEFAULT_FCPAUSE) +#define TXGBE_DEFAULT_FCPAUSE DEFAULT_FCPAUSE /*0x3800*/ +#else +#define TXGBE_DEFAULT_FCPAUSE 0xFFFF +#endif +#define TXGBE_MIN_FCPAUSE 0 +#define TXGBE_MAX_FCPAUSE 0xFFFF + +/* Supported Rx Buffer Sizes */ +#define TXGBE_RXBUFFER_256 256 /* Used for skb receive header */ +#define TXGBE_RXBUFFER_2K 2048 +#define TXGBE_RXBUFFER_3K 3072 +#define TXGBE_RXBUFFER_4K 4096 +#define TXGBE_MAX_RXBUFFER 16384 /* largest size for single descriptor */ + +#define TXGBE_BP_M_NULL 0 +#define TXGBE_BP_M_SFI 1 +#define TXGBE_BP_M_KR 2 +#define TXGBE_BP_M_KX4 3 +#define TXGBE_BP_M_KX 4 +#define TXGBE_BP_M_NAUTO 0 +#define TXGBE_BP_M_AUTO 1 + +/* + * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we + * reserve 64 more, and skb_shared_info adds an additional 320 bytes more, + * this adds up to 448 bytes of extra data. + * + * Since netdev_alloc_skb now allocates a page fragment we can use a value + * of 256 and the resultant skb will have a truesize of 960 or less. + */ +#define TXGBE_RX_HDR_SIZE TXGBE_RXBUFFER_256 + +#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) + +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define TXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */ +#define TXGBE_RX_DMA_ATTR \ + (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING) + +/* assume the kernel supports 8021p to avoid stripping vlan tags */ +#ifndef HAVE_8021P_SUPPORT +#define HAVE_8021P_SUPPORT +#endif + +enum txgbe_tx_flags { + /* cmd_type flags */ + TXGBE_TX_FLAGS_HW_VLAN = 0x01, + TXGBE_TX_FLAGS_TSO = 0x02, + TXGBE_TX_FLAGS_TSTAMP = 0x04, + + /* olinfo flags */ + TXGBE_TX_FLAGS_CC = 0x08, + TXGBE_TX_FLAGS_IPV4 = 0x10, + TXGBE_TX_FLAGS_CSUM = 0x20, + TXGBE_TX_FLAGS_OUTER_IPV4 = 0x100, + TXGBE_TX_FLAGS_LINKSEC = 0x200, + TXGBE_TX_FLAGS_IPSEC = 0x400, + + /* software defined flags */ + TXGBE_TX_FLAGS_SW_VLAN = 0x40, + TXGBE_TX_FLAGS_FCOE = 0x80, +}; + +/* VLAN info */ +#define TXGBE_TX_FLAGS_VLAN_MASK 0xffff0000 +#define TXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000 +#define TXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29 +#define TXGBE_TX_FLAGS_VLAN_SHIFT 16 + +#define TXGBE_MAX_RX_DESC_POLL 10 + +#define TXGBE_MAX_VF_MC_ENTRIES 30 +#define TXGBE_MAX_VF_FUNCTIONS 64 +#define MAX_EMULATION_MAC_ADDRS 16 +#define TXGBE_MAX_PF_MACVLANS 15 +#define TXGBE_VF_DEVICE_ID 0x1000 + +/* must account for pools assigned to VFs. */ +#define VMDQ_P(p) (p) + + +#define UPDATE_VF_COUNTER_32bit(reg, last_counter, counter) \ + { \ + u32 current_counter = rd32(hw, reg); \ + if (current_counter < last_counter) \ + counter += 0x100000000LL; \ + last_counter = current_counter; \ + counter &= 0xFFFFFFFF00000000LL; \ + counter |= current_counter; \ + } + +#define UPDATE_VF_COUNTER_36bit(reg_lsb, reg_msb, last_counter, counter) \ + { \ + u64 current_counter_lsb = rd32(hw, reg_lsb); \ + u64 current_counter_msb = rd32(hw, reg_msb); \ + u64 current_counter = (current_counter_msb << 32) | \ + current_counter_lsb; \ + if (current_counter < last_counter) \ + counter += 0x1000000000LL; \ + last_counter = current_counter; \ + counter &= 0xFFFFFFF000000000LL; \ + counter |= current_counter; \ + } + +struct vf_stats { + u64 gprc; + u64 gorc; + u64 gptc; + u64 gotc; + u64 mprc; +}; + +struct vf_data_storage { + struct pci_dev *vfdev; + u8 __iomem *b4_addr; + u32 b4_buf[16]; + unsigned char vf_mac_addresses[ETH_ALEN]; + u16 vf_mc_hashes[TXGBE_MAX_VF_MC_ENTRIES]; + u16 num_vf_mc_hashes; + u16 default_vf_vlan_id; + u16 vlans_enabled; + bool clear_to_send; + struct vf_stats vfstats; + struct vf_stats last_vfstats; + struct vf_stats saved_rst_vfstats; + bool pf_set_mac; + u16 pf_vlan; /* When set, guest VLAN config not allowed. */ + u16 pf_qos; + u16 min_tx_rate; + u16 max_tx_rate; + u16 vlan_count; + u8 spoofchk_enabled; + u8 trusted; + int xcast_mode; + unsigned int vf_api; +}; + +struct vf_macvlans { + struct list_head l; + int vf; + bool free; + bool is_macvlan; + u8 vf_macvlan[ETH_ALEN]; +}; + +#define TXGBE_MAX_TXD_PWR 14 +#define TXGBE_MAX_DATA_PER_TXD (1 << TXGBE_MAX_TXD_PWR) + +/* Tx Descriptors needed, worst case */ +#define TXD_USE_COUNT(S) DIV_ROUND_UP((S), TXGBE_MAX_DATA_PER_TXD) +#ifndef MAX_SKB_FRAGS +#define DESC_NEEDED 4 +#elif (MAX_SKB_FRAGS < 16) +#define DESC_NEEDED ((MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE)) + 4) +#else +#define DESC_NEEDED (MAX_SKB_FRAGS + 4) +#endif + +/* wrapper around a pointer to a socket buffer, + * so a DMA handle can be stored along with the buffer */ +struct txgbe_tx_buffer { + union txgbe_tx_desc *next_to_watch; + unsigned long time_stamp; + struct sk_buff *skb; + unsigned int bytecount; + unsigned short gso_segs; + __be16 protocol; + DEFINE_DMA_UNMAP_ADDR(dma); + DEFINE_DMA_UNMAP_LEN(len); + u32 tx_flags; +}; + +struct txgbe_rx_buffer { + struct sk_buff *skb; + dma_addr_t dma; + dma_addr_t page_dma; + struct page *page; + unsigned int page_offset; +}; + +struct txgbe_queue_stats { + u64 packets; + u64 bytes; +#ifdef BP_EXTENDED_STATS + u64 yields; + u64 misses; + u64 cleaned; +#endif /* BP_EXTENDED_STATS */ +}; + +struct txgbe_tx_queue_stats { + u64 restart_queue; + u64 tx_busy; + u64 tx_done_old; +}; + +struct txgbe_rx_queue_stats { + u64 rsc_count; + u64 rsc_flush; + u64 non_eop_descs; + u64 alloc_rx_page_failed; + u64 alloc_rx_buff_failed; + u64 csum_good_cnt; + u64 csum_err; +}; + +#define TXGBE_TS_HDR_LEN 8 +enum txgbe_ring_state_t { + __TXGBE_RX_3K_BUFFER, + __TXGBE_RX_BUILD_SKB_ENABLED, + __TXGBE_TX_FDIR_INIT_DONE, + __TXGBE_TX_XPS_INIT_DONE, + __TXGBE_TX_DETECT_HANG, + __TXGBE_HANG_CHECK_ARMED, + __TXGBE_RX_HS_ENABLED, + __TXGBE_RX_RSC_ENABLED, +}; + +struct txgbe_fwd_adapter { + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + struct net_device *vdev; + struct txgbe_adapter *adapter; + unsigned int tx_base_queue; + unsigned int rx_base_queue; + int index; /* pool index on PF */ +}; + +#define ring_uses_build_skb(ring) \ + test_bit(__TXGBE_RX_BUILD_SKB_ENABLED, &(ring)->state) + +#define ring_is_hs_enabled(ring) \ + test_bit(__TXGBE_RX_HS_ENABLED, &(ring)->state) +#define set_ring_hs_enabled(ring) \ + set_bit(__TXGBE_RX_HS_ENABLED, &(ring)->state) +#define clear_ring_hs_enabled(ring) \ + clear_bit(__TXGBE_RX_HS_ENABLED, &(ring)->state) +#define check_for_tx_hang(ring) \ + test_bit(__TXGBE_TX_DETECT_HANG, &(ring)->state) +#define set_check_for_tx_hang(ring) \ + set_bit(__TXGBE_TX_DETECT_HANG, &(ring)->state) +#define clear_check_for_tx_hang(ring) \ + clear_bit(__TXGBE_TX_DETECT_HANG, &(ring)->state) +#define ring_is_rsc_enabled(ring) \ + test_bit(__TXGBE_RX_RSC_ENABLED, &(ring)->state) +#define set_ring_rsc_enabled(ring) \ + set_bit(__TXGBE_RX_RSC_ENABLED, &(ring)->state) +#define clear_ring_rsc_enabled(ring) \ + clear_bit(__TXGBE_RX_RSC_ENABLED, &(ring)->state) + +struct txgbe_ring { + struct txgbe_ring *next; /* pointer to next ring in q_vector */ + struct txgbe_q_vector *q_vector; /* backpointer to host q_vector */ + struct net_device *netdev; /* netdev ring belongs to */ + struct device *dev; /* device for DMA mapping */ + struct txgbe_fwd_adapter *accel; + void *desc; /* descriptor ring memory */ + union { + struct txgbe_tx_buffer *tx_buffer_info; + struct txgbe_rx_buffer *rx_buffer_info; + }; + unsigned long state; + u8 __iomem *tail; + dma_addr_t dma; /* phys. address of descriptor ring */ + unsigned int size; /* length in bytes */ + + u16 count; /* amount of descriptors */ + + u8 queue_index; /* needed for multiqueue queue management */ + u8 reg_idx; /* holds the special value that gets + * the hardware register offset + * associated with this ring, which is + * different for DCB and RSS modes + */ + u16 next_to_use; + u16 next_to_clean; + unsigned long last_rx_timestamp; + u16 rx_buf_len; + union { + u16 next_to_alloc; + struct { + u8 atr_sample_rate; + u8 atr_count; + }; + }; + + u8 dcb_tc; + struct txgbe_queue_stats stats; + struct u64_stats_sync syncp; + + union { + struct txgbe_tx_queue_stats tx_stats; + struct txgbe_rx_queue_stats rx_stats; + }; +} ____cacheline_internodealigned_in_smp; + +enum txgbe_ring_f_enum { + RING_F_NONE = 0, + RING_F_VMDQ, /* SR-IOV uses the same ring feature */ + RING_F_RSS, + RING_F_FDIR, + RING_F_ARRAY_SIZE /* must be last in enum set */ +}; + +#define TXGBE_MAX_DCB_INDICES 8 +#define TXGBE_MAX_RSS_INDICES 63 +#define TXGBE_MAX_VMDQ_INDICES 64 +#define TXGBE_MAX_FDIR_INDICES 63 + +#define MAX_RX_QUEUES (TXGBE_MAX_FDIR_INDICES + 1) +#define MAX_TX_QUEUES (TXGBE_MAX_FDIR_INDICES + 1) + +#define TXGBE_MAX_L2A_QUEUES 4 +#define TXGBE_BAD_L2A_QUEUE 3 + +#define TXGBE_MAX_MACVLANS 32 +#define TXGBE_MAX_DCBMACVLANS 8 + +struct txgbe_ring_feature { + u16 limit; /* upper limit on feature indices */ + u16 indices; /* current value of indices */ + u16 mask; /* Mask used for feature to ring mapping */ + u16 offset; /* offset to start of feature */ +}; + +#define TXGBE_VMDQ_8Q_MASK 0x78 +#define TXGBE_VMDQ_4Q_MASK 0x7C +#define TXGBE_VMDQ_2Q_MASK 0x7E + +/* + * FCoE requires that all Rx buffers be over 2200 bytes in length. Since + * this is twice the size of a half page we need to double the page order + * for FCoE enabled Rx queues. + */ +static inline unsigned int txgbe_rx_bufsz(struct txgbe_ring __maybe_unused *ring) +{ +#if MAX_SKB_FRAGS < 8 + return ALIGN(TXGBE_MAX_RXBUFFER / MAX_SKB_FRAGS, 1024); +#else + return TXGBE_RXBUFFER_2K; +#endif +} + +static inline unsigned int txgbe_rx_pg_order(struct txgbe_ring __maybe_unused *ring) +{ + return 0; +} +#define txgbe_rx_pg_size(_ring) (PAGE_SIZE << txgbe_rx_pg_order(_ring)) + +struct txgbe_ring_container { + struct txgbe_ring *ring; /* pointer to linked list of rings */ + unsigned int total_bytes; /* total bytes processed this int */ + unsigned int total_packets; /* total packets processed this int */ + u16 work_limit; /* total work allowed per interrupt */ + u8 count; /* total number of rings in vector */ + u8 itr; /* current ITR setting for ring */ +}; + +/* iterator for handling rings in ring container */ +#define txgbe_for_each_ring(pos, head) \ + for (pos = (head).ring; pos != NULL; pos = pos->next) + +#define MAX_RX_PACKET_BUFFERS ((adapter->flags & TXGBE_FLAG_DCB_ENABLED) \ + ? 8 : 1) +#define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS + +/* MAX_MSIX_Q_VECTORS of these are allocated, + * but we only use one per queue-specific vector. + */ +struct txgbe_q_vector { + struct txgbe_adapter *adapter; + int cpu; /* CPU for DCA */ + u16 v_idx; /* index of q_vector within array, also used for + * finding the bit in EICR and friends that + * represents the vector for this ring */ + u16 itr; /* Interrupt throttle rate written to EITR */ + struct txgbe_ring_container rx, tx; + + struct napi_struct napi; + cpumask_t affinity_mask; + int numa_node; + struct rcu_head rcu; /* to avoid race with update stats on free */ + char name[IFNAMSIZ + 17]; + bool netpoll_rx; + + /* for dynamic allocation of rings associated with this q_vector */ + struct txgbe_ring ring[0] ____cacheline_internodealigned_in_smp; +}; + +/* + * microsecond values for various ITR rates shifted by 2 to fit itr register + * with the first 3 bits reserved 0 + */ +#define TXGBE_MIN_RSC_ITR 24 +#define TXGBE_100K_ITR 40 +#define TXGBE_20K_ITR 200 +#define TXGBE_16K_ITR 248 +#define TXGBE_12K_ITR 336 + +/* txgbe_test_staterr - tests bits in Rx descriptor status and error fields */ +static inline __le32 txgbe_test_staterr(union txgbe_rx_desc *rx_desc, + const u32 stat_err_bits) +{ + return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); +} + +/* txgbe_desc_unused - calculate if we have unused descriptors */ +static inline u16 txgbe_desc_unused(struct txgbe_ring *ring) +{ + u16 ntc = ring->next_to_clean; + u16 ntu = ring->next_to_use; + + return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1; +} + +#define TXGBE_RX_DESC(R, i) \ + (&(((union txgbe_rx_desc *)((R)->desc))[i])) +#define TXGBE_TX_DESC(R, i) \ + (&(((union txgbe_tx_desc *)((R)->desc))[i])) +#define TXGBE_TX_CTXTDESC(R, i) \ + (&(((struct txgbe_tx_context_desc *)((R)->desc))[i])) + +#define TXGBE_MAX_JUMBO_FRAME_SIZE 9432 /* max payload 9414 */ + +#define TCP_TIMER_VECTOR 0 +#define OTHER_VECTOR 1 +#define NON_Q_VECTORS (OTHER_VECTOR + TCP_TIMER_VECTOR) + +#define TXGBE_MAX_MSIX_Q_VECTORS_SAPPHIRE 64 + +struct txgbe_mac_addr { + u8 addr[ETH_ALEN]; + u16 state; /* bitmask */ + u64 pools; +}; + +#define TXGBE_MAC_STATE_DEFAULT 0x1 +#define TXGBE_MAC_STATE_MODIFIED 0x2 +#define TXGBE_MAC_STATE_IN_USE 0x4 + +/* + * Only for array allocations in our adapter struct. + * we can actually assign 64 queue vectors based on our extended-extended + * interrupt registers. + */ +#define MAX_MSIX_Q_VECTORS TXGBE_MAX_MSIX_Q_VECTORS_SAPPHIRE +#define MAX_MSIX_COUNT TXGBE_MAX_MSIX_VECTORS_SAPPHIRE + +#define MIN_MSIX_Q_VECTORS 1 +#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS) + +/* default to trying for four seconds */ +#define TXGBE_TRY_LINK_TIMEOUT (4 * HZ) +#define TXGBE_SFP_POLL_JIFFIES (2 * HZ) /* SFP poll every 2 seconds */ + +/** + * txgbe_adapter.flag + **/ +#define TXGBE_FLAG_MSI_CAPABLE (u32)(1 << 0) +#define TXGBE_FLAG_MSI_ENABLED (u32)(1 << 1) +#define TXGBE_FLAG_MSIX_CAPABLE (u32)(1 << 2) +#define TXGBE_FLAG_MSIX_ENABLED (u32)(1 << 3) +#define TXGBE_FLAG_LLI_PUSH (u32)(1 << 4) + +#define TXGBE_FLAG_TPH_ENABLED (u32)(1 << 6) +#define TXGBE_FLAG_TPH_CAPABLE (u32)(1 << 7) +#define TXGBE_FLAG_TPH_ENABLED_DATA (u32)(1 << 8) + +#define TXGBE_FLAG_MQ_CAPABLE (u32)(1 << 9) +#define TXGBE_FLAG_DCB_ENABLED (u32)(1 << 10) +#define TXGBE_FLAG_VMDQ_ENABLED (u32)(1 << 11) +#define TXGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 12) +#define TXGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 13) +#define TXGBE_FLAG_NEED_LINK_CONFIG (u32)(1 << 14) +#define TXGBE_FLAG_FDIR_HASH_CAPABLE (u32)(1 << 15) +#define TXGBE_FLAG_FDIR_PERFECT_CAPABLE (u32)(1 << 16) +#define TXGBE_FLAG_SRIOV_CAPABLE (u32)(1 << 19) +#define TXGBE_FLAG_SRIOV_ENABLED (u32)(1 << 20) +#define TXGBE_FLAG_SRIOV_REPLICATION_ENABLE (u32)(1 << 21) +#define TXGBE_FLAG_SRIOV_L2SWITCH_ENABLE (u32)(1 << 22) +#define TXGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE (u32)(1 << 23) +#define TXGBE_FLAG_RX_HWTSTAMP_ENABLED (u32)(1 << 24) +#define TXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE (u32)(1 << 25) +#define TXGBE_FLAG_VXLAN_OFFLOAD_ENABLE (u32)(1 << 26) +#define TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER (u32)(1 << 27) +#define TXGBE_FLAG_NEED_ETH_PHY_RESET (u32)(1 << 28) +#define TXGBE_FLAG_RX_HS_ENABLED (u32)(1 << 30) +#define TXGBE_FLAG_LINKSEC_ENABLED (u32)(1 << 31) +#define TXGBE_FLAG_IPSEC_ENABLED (u32)(1 << 5) + +/* preset defaults */ +#define TXGBE_FLAGS_SP_INIT (TXGBE_FLAG_MSI_CAPABLE \ + | TXGBE_FLAG_MSIX_CAPABLE \ + | TXGBE_FLAG_MQ_CAPABLE \ + | TXGBE_FLAG_SRIOV_CAPABLE) + +/** + * txgbe_adapter.flag2 + **/ +#define TXGBE_FLAG2_RSC_CAPABLE (1U << 0) +#define TXGBE_FLAG2_RSC_ENABLED (1U << 1) +#define TXGBE_FLAG2_TEMP_SENSOR_CAPABLE (1U << 3) +#define TXGBE_FLAG2_TEMP_SENSOR_EVENT (1U << 4) +#define TXGBE_FLAG2_SEARCH_FOR_SFP (1U << 5) +#define TXGBE_FLAG2_SFP_NEEDS_RESET (1U << 6) +#define TXGBE_FLAG2_PF_RESET_REQUESTED (1U << 7) +#define TXGBE_FLAG2_FDIR_REQUIRES_REINIT (1U << 8) +#define TXGBE_FLAG2_RSS_FIELD_IPV4_UDP (1U << 9) +#define TXGBE_FLAG2_RSS_FIELD_IPV6_UDP (1U << 10) +#define TXGBE_FLAG2_RSS_ENABLED (1U << 12) +#define TXGBE_FLAG2_PTP_PPS_ENABLED (1U << 11) +#define TXGBE_FLAG2_EEE_CAPABLE (1U << 14) +#define TXGBE_FLAG2_EEE_ENABLED (1U << 15) +#define TXGBE_FLAG2_VXLAN_REREG_NEEDED (1U << 16) +#define TXGBE_FLAG2_DEV_RESET_REQUESTED (1U << 18) +#define TXGBE_FLAG2_RESET_INTR_RECEIVED (1U << 19) +#define TXGBE_FLAG2_GLOBAL_RESET_REQUESTED (1U << 20) +#define TXGBE_FLAG2_CLOUD_SWITCH_ENABLED (1U << 21) +#define TXGBE_FLAG2_MNG_REG_ACCESS_DISABLED (1U << 22) +#define KR (1U << 23) +#define TXGBE_FLAG2_KR_TRAINING (1U << 24) +#define TXGBE_FLAG2_KR_AUTO (1U << 25) +#define TXGBE_FLAG2_LINK_DOWN (1U << 26) +#define TXGBE_FLAG2_KR_PRO_DOWN (1U << 27) +#define TXGBE_FLAG2_KR_PRO_REINIT (1U << 28) +#define TXGBE_FLAG2_PCIE_NEED_RECOVER (1U << 31) + + +#define TXGBE_SET_FLAG(_input, _flag, _result) \ + ((_flag <= _result) ? \ + ((u32)(_input & _flag) * (_result / _flag)) : \ + ((u32)(_input & _flag) / (_flag / _result))) + +enum txgbe_isb_idx { + TXGBE_ISB_HEADER, + TXGBE_ISB_MISC, + TXGBE_ISB_VEC0, + TXGBE_ISB_VEC1, + TXGBE_ISB_MAX +}; + +/* board specific private data structure */ +struct txgbe_adapter { + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + /* OS defined structs */ + struct net_device *netdev; + struct pci_dev *pdev; + + unsigned long state; + + /* Some features need tri-state capability, + * thus the additional *_CAPABLE flags. + */ + u32 flags; + u32 flags2; + u32 vf_mode; + u32 backplane_an; + u32 an73; + u32 an37; + u32 ffe_main; + u32 ffe_pre; + u32 ffe_post; + u32 ffe_set; + u32 backplane_mode; + u32 backplane_auto; + + bool cloud_mode; + + /* Tx fast path data */ + int num_tx_queues; + u16 tx_itr_setting; + u16 tx_work_limit; + + /* Rx fast path data */ + int num_rx_queues; + u16 rx_itr_setting; + u16 rx_work_limit; + + unsigned int num_vmdqs; /* does not include pools assigned to VFs */ + unsigned int queues_per_pool; + + /* TX */ + struct txgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp; + + u64 restart_queue; + u64 lsc_int; + u32 tx_timeout_count; + + /* RX */ + struct txgbe_ring *rx_ring[MAX_RX_QUEUES]; + u64 hw_csum_rx_error; + u64 hw_csum_rx_good; + u64 hw_rx_no_dma_resources; + u64 rsc_total_count; + u64 rsc_total_flush; + u64 non_eop_descs; + u32 alloc_rx_page_failed; + u32 alloc_rx_buff_failed; + + struct txgbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS]; + + u8 dcb_set_bitmap; + u8 dcbx_cap; + enum txgbe_fc_mode last_lfc_mode; + + int num_q_vectors; /* current number of q_vectors for device */ + int max_q_vectors; /* upper limit of q_vectors for device */ + struct txgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE]; + struct msix_entry *msix_entries; + + u64 test_icr; + struct txgbe_ring test_tx_ring; + struct txgbe_ring test_rx_ring; + + /* structs defined in txgbe_hw.h */ + struct txgbe_hw hw; + u16 msg_enable; + struct txgbe_hw_stats stats; + u32 lli_port; + u32 lli_size; + u32 lli_etype; + u32 lli_vlan_pri; + + u32 *config_space; + u64 tx_busy; + unsigned int tx_ring_count; + unsigned int rx_ring_count; + + u32 link_speed; + bool link_up; + unsigned long sfp_poll_time; + unsigned long link_check_timeout; + + struct timer_list service_timer; + struct work_struct service_task; + struct hlist_head fdir_filter_list; + unsigned long fdir_overflow; /* number of times ATR was backed off */ + union txgbe_atr_input fdir_mask; + int fdir_filter_count; + u32 fdir_pballoc; + u32 atr_sample_rate; + spinlock_t fdir_perfect_lock; + + u8 __iomem *io_addr; /* Mainly for iounmap use */ + u32 wol; + + u16 bd_number; + u16 bridge_mode; + + char eeprom_id[32]; + u16 eeprom_cap; + bool netdev_registered; + u32 interrupt_event; + u32 led_reg; + + struct ptp_clock *ptp_clock; + struct ptp_clock_info ptp_caps; + struct work_struct ptp_tx_work; + struct sk_buff *ptp_tx_skb; + struct hwtstamp_config tstamp_config; + unsigned long ptp_tx_start; + unsigned long last_overflow_check; + unsigned long last_rx_ptp_check; + spinlock_t tmreg_lock; + struct cyclecounter hw_cc; + struct timecounter hw_tc; + u32 base_incval; + u32 tx_hwtstamp_timeouts; + u32 tx_hwtstamp_skipped; + u32 rx_hwtstamp_cleared; + void (*ptp_setup_sdp) (struct txgbe_adapter *); + + DECLARE_BITMAP(active_vfs, TXGBE_MAX_VF_FUNCTIONS); + unsigned int num_vfs; + struct vf_data_storage *vfinfo; + struct vf_macvlans vf_mvs; + struct vf_macvlans *mv_list; + struct txgbe_mac_addr *mac_table; + + __le16 vxlan_port; + __le16 geneve_port; + + u8 default_up; + + unsigned long fwd_bitmask; /* bitmask indicating in use pools */ + unsigned long tx_timeout_last_recovery; + u32 tx_timeout_recovery_level; + +#define TXGBE_MAX_RETA_ENTRIES 128 + u8 rss_indir_tbl[TXGBE_MAX_RETA_ENTRIES]; +#define TXGBE_RSS_KEY_SIZE 40 + u32 rss_key[TXGBE_RSS_KEY_SIZE / sizeof(u32)]; + + void *ipsec; + + /* misc interrupt status block */ + dma_addr_t isb_dma; + u32 *isb_mem; + u32 isb_tag[TXGBE_ISB_MAX]; +}; + +static inline u32 txgbe_misc_isb(struct txgbe_adapter *adapter, + enum txgbe_isb_idx idx) +{ + u32 cur_tag = 0; + u32 cur_diff = 0; + + cur_tag = adapter->isb_mem[TXGBE_ISB_HEADER]; + cur_diff = cur_tag - adapter->isb_tag[idx]; + + adapter->isb_tag[idx] = cur_tag; + + return adapter->isb_mem[idx]; +} + +static inline u8 txgbe_max_rss_indices(struct txgbe_adapter *adapter) +{ + return TXGBE_MAX_RSS_INDICES; +} + +struct txgbe_fdir_filter { + struct hlist_node fdir_node; + union txgbe_atr_input filter; + u16 sw_idx; + u16 action; +}; + +enum txgbe_state_t { + __TXGBE_TESTING, + __TXGBE_RESETTING, + __TXGBE_DOWN, + __TXGBE_HANGING, + __TXGBE_DISABLED, + __TXGBE_REMOVING, + __TXGBE_SERVICE_SCHED, + __TXGBE_SERVICE_INITED, + __TXGBE_IN_SFP_INIT, + __TXGBE_PTP_RUNNING, + __TXGBE_PTP_TX_IN_PROGRESS, +}; + +struct txgbe_cb { + dma_addr_t dma; + u16 append_cnt; /* number of skb's appended */ + bool page_released; + bool dma_released; +}; +#define TXGBE_CB(skb) ((struct txgbe_cb *)(skb)->cb) + +/* ESX txgbe CIM IOCTL definition */ + +extern struct dcbnl_rtnl_ops dcbnl_ops; +int txgbe_copy_dcb_cfg(struct txgbe_adapter *adapter, int tc_max); + +u8 txgbe_dcb_txq_to_tc(struct txgbe_adapter *adapter, u8 index); + +/* needed by txgbe_main.c */ +int txgbe_validate_mac_addr(u8 *mc_addr); +void txgbe_check_options(struct txgbe_adapter *adapter); +void txgbe_assign_netdev_ops(struct net_device *netdev); + +/* needed by txgbe_ethtool.c */ +extern char txgbe_driver_name[]; +extern const char txgbe_driver_version[]; + +void txgbe_irq_disable(struct txgbe_adapter *adapter); +void txgbe_irq_enable(struct txgbe_adapter *adapter, bool queues, bool flush); +int txgbe_open(struct net_device *netdev); +int txgbe_close(struct net_device *netdev); +void txgbe_up(struct txgbe_adapter *adapter); +void txgbe_down(struct txgbe_adapter *adapter); +void txgbe_reinit_locked(struct txgbe_adapter *adapter); +void txgbe_reset(struct txgbe_adapter *adapter); +void txgbe_set_ethtool_ops(struct net_device *netdev); +int txgbe_setup_rx_resources(struct txgbe_ring *); +int txgbe_setup_tx_resources(struct txgbe_ring *); +void txgbe_free_rx_resources(struct txgbe_ring *); +void txgbe_free_tx_resources(struct txgbe_ring *); +void txgbe_configure_rx_ring(struct txgbe_adapter *, + struct txgbe_ring *); +void txgbe_configure_tx_ring(struct txgbe_adapter *, + struct txgbe_ring *); +void txgbe_update_stats(struct txgbe_adapter *adapter); +int txgbe_init_interrupt_scheme(struct txgbe_adapter *adapter); +void txgbe_reset_interrupt_capability(struct txgbe_adapter *adapter); +void txgbe_set_interrupt_capability(struct txgbe_adapter *adapter); +void txgbe_clear_interrupt_scheme(struct txgbe_adapter *adapter); +bool txgbe_is_txgbe(struct pci_dev *pcidev); +netdev_tx_t txgbe_xmit_frame_ring(struct sk_buff *, + struct txgbe_adapter *, + struct txgbe_ring *); +void txgbe_unmap_and_free_tx_resource(struct txgbe_ring *, + struct txgbe_tx_buffer *); +void txgbe_alloc_rx_buffers(struct txgbe_ring *, u16); +void txgbe_configure_rscctl(struct txgbe_adapter *adapter, + struct txgbe_ring *); +void txgbe_clear_rscctl(struct txgbe_adapter *adapter, + struct txgbe_ring *); +void txgbe_clear_vxlan_port(struct txgbe_adapter *); +void txgbe_set_rx_mode(struct net_device *netdev); +int txgbe_write_mc_addr_list(struct net_device *netdev); +int txgbe_setup_tc(struct net_device *dev, u8 tc); +void txgbe_tx_ctxtdesc(struct txgbe_ring *, u32, u32, u32, u32); +void txgbe_do_reset(struct net_device *netdev); +void txgbe_write_eitr(struct txgbe_q_vector *q_vector); +int txgbe_poll(struct napi_struct *napi, int budget); +void txgbe_disable_rx_queue(struct txgbe_adapter *adapter, + struct txgbe_ring *); +void txgbe_vlan_strip_enable(struct txgbe_adapter *adapter); +void txgbe_vlan_strip_disable(struct txgbe_adapter *adapter); + +void txgbe_dump(struct txgbe_adapter *adapter); + +static inline struct netdev_queue *txring_txq(const struct txgbe_ring *ring) +{ + return netdev_get_tx_queue(ring->netdev, ring->queue_index); +} + +int txgbe_wol_supported(struct txgbe_adapter *adapter); +int txgbe_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd); +int txgbe_write_uc_addr_list(struct net_device *netdev, int pool); +void txgbe_full_sync_mac_table(struct txgbe_adapter *adapter); +int txgbe_add_mac_filter(struct txgbe_adapter *adapter, + u8 *addr, u16 pool); +int txgbe_del_mac_filter(struct txgbe_adapter *adapter, + u8 *addr, u16 pool); +int txgbe_available_rars(struct txgbe_adapter *adapter); +void txgbe_vlan_mode(struct net_device *, u32); + +void txgbe_ptp_init(struct txgbe_adapter *adapter); +void txgbe_ptp_stop(struct txgbe_adapter *adapter); +void txgbe_ptp_suspend(struct txgbe_adapter *adapter); +void txgbe_ptp_overflow_check(struct txgbe_adapter *adapter); +void txgbe_ptp_rx_hang(struct txgbe_adapter *adapter); +void txgbe_ptp_rx_hwtstamp(struct txgbe_adapter *adapter, struct sk_buff *skb); +int txgbe_ptp_set_ts_config(struct txgbe_adapter *adapter, struct ifreq *ifr); +int txgbe_ptp_get_ts_config(struct txgbe_adapter *adapter, struct ifreq *ifr); +void txgbe_ptp_start_cyclecounter(struct txgbe_adapter *adapter); +void txgbe_ptp_reset(struct txgbe_adapter *adapter); +void txgbe_ptp_check_pps_event(struct txgbe_adapter *adapter); + +void txgbe_set_rx_drop_en(struct txgbe_adapter *adapter); + +u32 txgbe_rss_indir_tbl_entries(struct txgbe_adapter *adapter); +void txgbe_store_reta(struct txgbe_adapter *adapter); + +/** + * interrupt masking operations. each bit in PX_ICn correspond to a interrupt. + * disable a interrupt by writing to PX_IMS with the corresponding bit=1 + * enable a interrupt by writing to PX_IMC with the corresponding bit=1 + * trigger a interrupt by writing to PX_ICS with the corresponding bit=1 + **/ +#define TXGBE_INTR_ALL (~0ULL) +#define TXGBE_INTR_MISC(A) (1ULL << (A)->num_q_vectors) +#define TXGBE_INTR_QALL(A) (TXGBE_INTR_MISC(A) - 1) +#define TXGBE_INTR_Q(i) (1ULL << (i)) +static inline void txgbe_intr_enable(struct txgbe_hw *hw, u64 qmask) +{ + u32 mask; + + mask = (qmask & 0xFFFFFFFF); + if (mask) + wr32(hw, TXGBE_PX_IMC(0), mask); + mask = (qmask >> 32); + if (mask) + wr32(hw, TXGBE_PX_IMC(1), mask); + + /* skip the flush */ +} + +static inline void txgbe_intr_disable(struct txgbe_hw *hw, u64 qmask) +{ + u32 mask; + + mask = (qmask & 0xFFFFFFFF); + if (mask) + wr32(hw, TXGBE_PX_IMS(0), mask); + mask = (qmask >> 32); + if (mask) + wr32(hw, TXGBE_PX_IMS(1), mask); + + /* skip the flush */ +} + +static inline void txgbe_intr_trigger(struct txgbe_hw *hw, u64 qmask) +{ + u32 mask; + + mask = (qmask & 0xFFFFFFFF); + if (mask) + wr32(hw, TXGBE_PX_ICS(0), mask); + mask = (qmask >> 32); + if (mask) + wr32(hw, TXGBE_PX_ICS(1), mask); + + /* skip the flush */ +} + +#define TXGBE_RING_SIZE(R) ((R)->count < TXGBE_MAX_TXD ? (R)->count / 128 : 0) + +/* move from txgbe_osdep.h */ +#define TXGBE_CPU_TO_BE16(_x) cpu_to_be16(_x) +#define TXGBE_BE16_TO_CPU(_x) be16_to_cpu(_x) +#define TXGBE_CPU_TO_BE32(_x) cpu_to_be32(_x) +#define TXGBE_BE32_TO_CPU(_x) be32_to_cpu(_x) + +#define msec_delay(_x) msleep(_x) + +#define usec_delay(_x) udelay(_x) + +#define STATIC static + +#define TXGBE_NAME "txgbe" + +#define DPRINTK(nlevel, klevel, fmt, args...) \ + ((void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \ + printk(KERN_##klevel TXGBE_NAME ": %s: %s: " fmt, \ + adapter->netdev->name, \ + __func__, ## args))) + +#ifndef _WIN32 +#define txgbe_emerg(fmt, ...) printk(KERN_EMERG fmt, ## __VA_ARGS__) +#define txgbe_alert(fmt, ...) printk(KERN_ALERT fmt, ## __VA_ARGS__) +#define txgbe_crit(fmt, ...) printk(KERN_CRIT fmt, ## __VA_ARGS__) +#define txgbe_error(fmt, ...) printk(KERN_ERR fmt, ## __VA_ARGS__) +#define txgbe_warn(fmt, ...) printk(KERN_WARNING fmt, ## __VA_ARGS__) +#define txgbe_notice(fmt, ...) printk(KERN_NOTICE fmt, ## __VA_ARGS__) +#define txgbe_info(fmt, ...) printk(KERN_INFO fmt, ## __VA_ARGS__) +#define txgbe_print(fmt, ...) printk(KERN_DEBUG fmt, ## __VA_ARGS__) +#define txgbe_trace(fmt, ...) printk(KERN_INFO fmt, ## __VA_ARGS__) +#else /* _WIN32 */ +#define txgbe_error(lvl, fmt, ...) \ + DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_ERROR_LEVEL, \ + "%s-error: %s@%d, " fmt, \ + "txgbe", __FUNCTION__, __LINE__, ## __VA_ARGS__) +#endif /* !_WIN32 */ + +#ifdef DBG +#ifndef _WIN32 +#define txgbe_debug(fmt, ...) \ + printk(KERN_DEBUG \ + "%s-debug: %s@%d, " fmt, \ + "txgbe", __FUNCTION__, __LINE__, ## __VA_ARGS__) +#else /* _WIN32 */ +#define txgbe_debug(fmt, ...) \ + DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_ERROR_LEVEL, \ + "%s-debug: %s@%d, " fmt, \ + "txgbe", __FUNCTION__, __LINE__, ## __VA_ARGS__) +#endif /* _WIN32 */ +#else /* DBG */ +#define txgbe_debug(fmt, ...) do {} while (0) +#endif /* DBG */ + + +#ifdef DBG +#define ASSERT(_x) BUG_ON(!(_x)) +#define DEBUGOUT(S) printk(KERN_DEBUG S) +#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S, ## A) +#define DEBUGOUT2(S, A...) printk(KERN_DEBUG S, ## A) +#define DEBUGOUT3(S, A...) printk(KERN_DEBUG S, ## A) +#define DEBUGOUT4(S, A...) printk(KERN_DEBUG S, ## A) +#define DEBUGOUT5(S, A...) printk(KERN_DEBUG S, ## A) +#define DEBUGOUT6(S, A...) printk(KERN_DEBUG S, ## A) +#define DEBUGFUNC(fmt, ...) txgbe_debug(fmt, ## __VA_ARGS__) +#else +#define ASSERT(_x) do {} while (0) +#define DEBUGOUT(S) do {} while (0) +#define DEBUGOUT1(S, A...) do {} while (0) +#define DEBUGOUT2(S, A...) do {} while (0) +#define DEBUGOUT3(S, A...) do {} while (0) +#define DEBUGOUT4(S, A...) do {} while (0) +#define DEBUGOUT5(S, A...) do {} while (0) +#define DEBUGOUT6(S, A...) do {} while (0) +#define DEBUGFUNC(fmt, ...) do {} while (0) +#endif + + +struct txgbe_msg { + u16 msg_enable; +}; + +__attribute__((unused)) static struct net_device *txgbe_hw_to_netdev(const struct txgbe_hw *hw) +{ + return ((struct txgbe_adapter *)hw->back)->netdev; +} + +__attribute__((unused)) static struct txgbe_msg *txgbe_hw_to_msg(const struct txgbe_hw *hw) +{ + struct txgbe_adapter *adapter = + container_of(hw, struct txgbe_adapter, hw); + return (struct txgbe_msg *)&adapter->msg_enable; +} + +static inline struct device *pci_dev_to_dev(struct pci_dev *pdev) +{ + return &pdev->dev; +} + +#define hw_dbg(hw, format, arg...) \ + netdev_dbg(txgbe_hw_to_netdev(hw), format, ## arg) +#define hw_err(hw, format, arg...) \ + netdev_err(txgbe_hw_to_netdev(hw), format, ## arg) +#define e_dev_info(format, arg...) \ + dev_info(pci_dev_to_dev(adapter->pdev), format, ## arg) +#define e_dev_warn(format, arg...) \ + dev_warn(pci_dev_to_dev(adapter->pdev), format, ## arg) +#define e_dev_err(format, arg...) \ + dev_err(pci_dev_to_dev(adapter->pdev), format, ## arg) +#define e_dev_notice(format, arg...) \ + dev_notice(pci_dev_to_dev(adapter->pdev), format, ## arg) +#define e_dbg(msglvl, format, arg...) \ + netif_dbg(adapter, msglvl, adapter->netdev, format, ## arg) +#define e_info(msglvl, format, arg...) \ + netif_info(adapter, msglvl, adapter->netdev, format, ## arg) +#define e_err(msglvl, format, arg...) \ + netif_err(adapter, msglvl, adapter->netdev, format, ## arg) +#define e_warn(msglvl, format, arg...) \ + netif_warn(adapter, msglvl, adapter->netdev, format, ## arg) +#define e_crit(msglvl, format, arg...) \ + netif_crit(adapter, msglvl, adapter->netdev, format, ## arg) + +#define TXGBE_FAILED_READ_CFG_DWORD 0xffffffffU +#define TXGBE_FAILED_READ_CFG_WORD 0xffffU +#define TXGBE_FAILED_READ_CFG_BYTE 0xffU + +extern u32 txgbe_read_reg(struct txgbe_hw *hw, u32 reg, bool quiet); +extern u16 txgbe_read_pci_cfg_word(struct txgbe_hw *hw, u32 reg); +extern void txgbe_write_pci_cfg_word(struct txgbe_hw *hw, u32 reg, u16 value); + +#define TXGBE_R32_Q(h, r) txgbe_read_reg(h, r, true) + +#define TXGBE_EEPROM_GRANT_ATTEMPS 100 +#define TXGBE_HTONL(_i) htonl(_i) +#define TXGBE_NTOHL(_i) ntohl(_i) +#define TXGBE_NTOHS(_i) ntohs(_i) +#define TXGBE_CPU_TO_LE32(_i) cpu_to_le32(_i) +#define TXGBE_LE32_TO_CPUS(_i) le32_to_cpus(_i) + +enum { + TXGBE_ERROR_SOFTWARE, + TXGBE_ERROR_POLLING, + TXGBE_ERROR_INVALID_STATE, + TXGBE_ERROR_UNSUPPORTED, + TXGBE_ERROR_ARGUMENT, + TXGBE_ERROR_CAUTION, +}; + +#define ERROR_REPORT(level, format, arg...) do { \ + switch (level) { \ + case TXGBE_ERROR_SOFTWARE: \ + case TXGBE_ERROR_CAUTION: \ + case TXGBE_ERROR_POLLING: \ + netif_warn(txgbe_hw_to_msg(hw), drv, txgbe_hw_to_netdev(hw), \ + format, ## arg); \ + break; \ + case TXGBE_ERROR_INVALID_STATE: \ + case TXGBE_ERROR_UNSUPPORTED: \ + case TXGBE_ERROR_ARGUMENT: \ + netif_err(txgbe_hw_to_msg(hw), hw, txgbe_hw_to_netdev(hw), \ + format, ## arg); \ + break; \ + default: \ + break; \ + } \ +} while (0) + +#define ERROR_REPORT1 ERROR_REPORT +#define ERROR_REPORT2 ERROR_REPORT +#define ERROR_REPORT3 ERROR_REPORT + +#define UNREFERENCED_XPARAMETER +#define UNREFERENCED_1PARAMETER(_p) do { \ + uninitialized_var(_p); \ +} while (0) +#define UNREFERENCED_2PARAMETER(_p, _q) do { \ + uninitialized_var(_p); \ + uninitialized_var(_q); \ +} while (0) +#define UNREFERENCED_3PARAMETER(_p, _q, _r) do { \ + uninitialized_var(_p); \ + uninitialized_var(_q); \ + uninitialized_var(_r); \ +} while (0) +#define UNREFERENCED_4PARAMETER(_p, _q, _r, _s) do { \ + uninitialized_var(_p); \ + uninitialized_var(_q); \ + uninitialized_var(_r); \ + uninitialized_var(_s); \ +} while (0) +#define UNREFERENCED_PARAMETER(_p) UNREFERENCED_1PARAMETER(_p) + +/* end of txgbe_osdep.h */ + +#endif /* _TXGBE_H_ */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_bp.c b/drivers/net/ethernet/netswift/txgbe/txgbe_bp.c new file mode 100644 index 0000000000000..68d465da2eee8 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_bp.c @@ -0,0 +1,875 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + + +#include "txgbe_bp.h" + +int Handle_bkp_an73_flow(unsigned char byLinkMode, struct txgbe_adapter *adapter); +int WaitBkpAn73XnpDone(struct txgbe_adapter *adapter); +int GetBkpAn73Ability(bkpan73ability *ptBkpAn73Ability, unsigned char byLinkPartner, + struct txgbe_adapter *adapter); +int Get_bkp_an73_ability(bkpan73ability *ptBkpAn73Ability, unsigned char byLinkPartner, + struct txgbe_adapter *adapter); +int ClearBkpAn73Interrupt(unsigned int intIndex, unsigned int intIndexHi, struct txgbe_adapter *adapter); +int CheckBkpAn73Interrupt(unsigned int intIndex, struct txgbe_adapter *adapter); +int Check_bkp_an73_ability(bkpan73ability tBkpAn73Ability, bkpan73ability tLpBkpAn73Ability, + struct txgbe_adapter *adapter); + +void txgbe_bp_close_protect(struct txgbe_adapter *adapter) +{ + adapter->flags2 |= TXGBE_FLAG2_KR_PRO_DOWN; + if (adapter->flags2 & TXGBE_FLAG2_KR_PRO_REINIT) { + msleep(100); + printk("wait to reinited ok..%x\n", adapter->flags2); + } +} + +int txgbe_bp_mode_setting(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + + /*default to open an73*/ + + adapter->backplane_an = AUTO ? 1 : 0; + adapter->an37 = AUTO ? 1 : 0; + + if (adapter->backplane_mode == TXGBE_BP_M_KR) { + hw->subsystem_device_id = TXGBE_ID_WX1820_KR_KX_KX4; + hw->subsystem_id = TXGBE_ID_WX1820_KR_KX_KX4; + } else if (adapter->backplane_mode == TXGBE_BP_M_KX4) { + hw->subsystem_device_id = TXGBE_ID_WX1820_MAC_XAUI; + hw->subsystem_id = TXGBE_ID_WX1820_MAC_XAUI; + } else if (adapter->backplane_mode == TXGBE_BP_M_KX) { + hw->subsystem_device_id = TXGBE_ID_WX1820_MAC_SGMII; + hw->subsystem_id = TXGBE_ID_WX1820_MAC_SGMII; + } else if (adapter->backplane_mode == TXGBE_BP_M_SFI) { + hw->subsystem_device_id = TXGBE_ID_WX1820_SFP; + hw->subsystem_id = TXGBE_ID_WX1820_SFP; + } + + if (adapter->backplane_auto == TXGBE_BP_M_AUTO) { + adapter->backplane_an = 1; + adapter->an37 = 1; + } else if (adapter->backplane_auto == TXGBE_BP_M_NAUTO) { + adapter->backplane_an = 0; + adapter->an37 = 0; + } + + if (adapter->ffe_set == TXGBE_BP_M_KR || + adapter->ffe_set == TXGBE_BP_M_KX4 || + adapter->ffe_set == TXGBE_BP_M_KX || + adapter->ffe_set == TXGBE_BP_M_SFI) { + goto out; + } + + if (KR_SET == 1) { + adapter->ffe_main = KR_MAIN; + adapter->ffe_pre = KR_PRE; + adapter->ffe_post = KR_POST; + } else if (KX4_SET == 1) { + adapter->ffe_main = KX4_MAIN; + adapter->ffe_pre = KX4_PRE; + adapter->ffe_post = KX4_POST; + } else if (KX_SET == 1) { + adapter->ffe_main = KX_MAIN; + adapter->ffe_pre = KX_PRE; + adapter->ffe_post = KX_POST; + } else if (SFI_SET == 1) { + adapter->ffe_main = SFI_MAIN; + adapter->ffe_pre = SFI_PRE; + adapter->ffe_post = SFI_POST; + } +out: + return 0; +} + +static int txgbe_kr_subtask(struct txgbe_adapter *adapter) +{ + Handle_bkp_an73_flow(0, adapter); + return 0; +} + +void txgbe_bp_watchdog_event(struct txgbe_adapter *adapter) +{ + u32 value = 0; + struct txgbe_hw *hw = &adapter->hw; + + if (KR_POLLING == 1) { + value = txgbe_rd32_epcs(hw, 0x78002); + value = value & 0x4; + if (value == 0x4) { + e_dev_info("Enter training\n"); + txgbe_kr_subtask(adapter); + } + } else { + if (adapter->flags2 & TXGBE_FLAG2_KR_TRAINING) { + e_dev_info("Enter training\n"); + txgbe_kr_subtask(adapter); + adapter->flags2 &= ~TXGBE_FLAG2_KR_TRAINING; + } + } +} + +void txgbe_bp_down_event(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + if (adapter->backplane_an == 1) { + if (KR_NORESET == 1) { + txgbe_wr32_epcs(hw, 0x78003, 0x0000); + txgbe_wr32_epcs(hw, 0x70000, 0x0000); + txgbe_wr32_epcs(hw, 0x78001, 0x0000); + msleep(1050); + txgbe_set_link_to_kr(hw, 1); + } else if (KR_REINITED == 1) { + txgbe_wr32_epcs(hw, 0x78003, 0x0000); + txgbe_wr32_epcs(hw, 0x70000, 0x0000); + txgbe_wr32_epcs(hw, 0x78001, 0x0000); + txgbe_wr32_epcs(hw, 0x18035, 0x00FF); + txgbe_wr32_epcs(hw, 0x18055, 0x00FF); + msleep(1050); + txgbe_wr32_epcs(hw, 0x78003, 0x0001); + txgbe_wr32_epcs(hw, 0x70000, 0x3200); + txgbe_wr32_epcs(hw, 0x78001, 0x0007); + txgbe_wr32_epcs(hw, 0x18035, 0x00FC); + txgbe_wr32_epcs(hw, 0x18055, 0x00FC); + } else { + msleep(1000); + if (!(adapter->flags2&TXGBE_FLAG2_KR_PRO_DOWN)) { + adapter->flags2 |= TXGBE_FLAG2_KR_PRO_REINIT; + txgbe_reinit_locked(adapter); + adapter->flags2 &= ~TXGBE_FLAG2_KR_PRO_REINIT; + } + } + } +} + +int txgbe_kr_intr_handle(struct txgbe_adapter *adapter) +{ + bkpan73ability tBkpAn73Ability, tLpBkpAn73Ability; + tBkpAn73Ability.currentLinkMode = 0; + + if (KR_MODE) { + e_dev_info("HandleBkpAn73Flow() \n"); + e_dev_info("---------------------------------\n"); + } + + /*1. Get the local AN73 Base Page Ability*/ + if (KR_MODE) + e_dev_info("<1>. Get the local AN73 Base Page Ability ...\n"); + GetBkpAn73Ability(&tBkpAn73Ability, 0, adapter); + + /*2. Check the AN73 Interrupt Status*/ + if (KR_MODE) + e_dev_info("<2>. Check the AN73 Interrupt Status ...\n"); + /*3.Clear the AN_PG_RCV interrupt*/ + ClearBkpAn73Interrupt(2, 0x0, adapter); + + /*3.1. Get the link partner AN73 Base Page Ability*/ + if (KR_MODE) + e_dev_info("<3.1>. Get the link partner AN73 Base Page Ability ...\n"); + Get_bkp_an73_ability(&tLpBkpAn73Ability, 1, adapter); + + /*3.2. Check the AN73 Link Ability with Link Partner*/ + if (KR_MODE) { + e_dev_info("<3.2>. Check the AN73 Link Ability with Link Partner ...\n"); + e_dev_info(" Local Link Ability: 0x%x\n", tBkpAn73Ability.linkAbility); + e_dev_info(" Link Partner Link Ability: 0x%x\n", tLpBkpAn73Ability.linkAbility); + } + Check_bkp_an73_ability(tBkpAn73Ability, tLpBkpAn73Ability, adapter); + + return 0; +} + +/*Check Ethernet Backplane AN73 Base Page Ability +**return value: +** -1 : none link mode matched, exit +** 0 : current link mode matched, wait AN73 to be completed +** 1 : current link mode not matched, set to matched link mode, re-start AN73 external +*/ +int Check_bkp_an73_ability(bkpan73ability tBkpAn73Ability, bkpan73ability tLpBkpAn73Ability, + struct txgbe_adapter *adapter) +{ + unsigned int comLinkAbility; + struct txgbe_hw *hw = &adapter->hw; + + if (KR_MODE) { + e_dev_info("CheckBkpAn73Ability():\n"); + e_dev_info("------------------------\n"); + } + + /*-- Check the common link ability and take action based on the result*/ + comLinkAbility = tBkpAn73Ability.linkAbility & tLpBkpAn73Ability.linkAbility; + if (KR_MODE) + e_dev_info("comLinkAbility= 0x%x, linkAbility= 0x%x, lpLinkAbility= 0x%x\n", + comLinkAbility, tBkpAn73Ability.linkAbility, tLpBkpAn73Ability.linkAbility); + + if (comLinkAbility == 0) { + if (KR_MODE) + e_dev_info("WARNING: The Link Partner does not support any compatible speed mode!!!\n\n"); + return -1; + } else if (comLinkAbility & 0x80) { + if (tBkpAn73Ability.currentLinkMode == 0) { + if (KR_MODE) + e_dev_info("Link mode is matched with Link Partner: [LINK_KR].\n"); + return 0; + } else { + if (KR_MODE) { + e_dev_info("Link mode is not matched with Link Partner: [LINK_KR].\n"); + e_dev_info("Set the local link mode to [LINK_KR] ...\n"); + } + txgbe_set_link_to_kr(hw, 1); + return 1; + } + } else if (comLinkAbility & 0x40) { + if (tBkpAn73Ability.currentLinkMode == 0x10) { + if (KR_MODE) + e_dev_info("Link mode is matched with Link Partner: [LINK_KX4].\n"); + return 0; + } else { + if (KR_MODE) { + e_dev_info("Link mode is not matched with Link Partner: [LINK_KX4].\n"); + e_dev_info("Set the local link mode to [LINK_KX4] ...\n"); + } + txgbe_set_link_to_kx4(hw, 1); + return 1; + } + } else if (comLinkAbility & 0x20) { + if (tBkpAn73Ability.currentLinkMode == 0x1) { + if (KR_MODE) + e_dev_info("Link mode is matched with Link Partner: [LINK_KX].\n"); + return 0; + } else { + if (KR_MODE) { + e_dev_info("Link mode is not matched with Link Partner: [LINK_KX].\n"); + e_dev_info("Set the local link mode to [LINK_KX] ...\n"); + } + txgbe_set_link_to_kx(hw, 1, 1); + return 1; + } + } + return 0; +} + + +/*Get Ethernet Backplane AN73 Base Page Ability +**byLinkPartner: +**- 1: Get Link Partner Base Page +**- 2: Get Link Partner Next Page (only get NXP Ability Register 1 at the moment) +**- 0: Get Local Device Base Page +*/ +int Get_bkp_an73_ability(bkpan73ability *ptBkpAn73Ability, unsigned char byLinkPartner, + struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int rdata; + struct txgbe_hw *hw = &adapter->hw; + + if (KR_MODE) { + e_dev_info("GetBkpAn73Ability(): byLinkPartner = %d\n", byLinkPartner); + e_dev_info("----------------------------------------\n"); + } + + if (byLinkPartner == 1) { /*Link Partner Base Page*/ + /*Read the link partner AN73 Base Page Ability Registers*/ + if (KR_MODE) + e_dev_info("Read the link partner AN73 Base Page Ability Registers...\n"); + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70013); + if (KR_MODE) + e_dev_info("SR AN MMD LP Base Page Ability Register 1: 0x%x\n", rdata); + ptBkpAn73Ability->nextPage = (rdata >> 15) & 0x01; + if (KR_MODE) + e_dev_info(" Next Page (bit15): %d\n", ptBkpAn73Ability->nextPage); + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70014); + if (KR_MODE) + e_dev_info("SR AN MMD LP Base Page Ability Register 2: 0x%x\n", rdata); + ptBkpAn73Ability->linkAbility = rdata & 0xE0; + if (KR_MODE) { + e_dev_info(" Link Ability (bit[15:0]): 0x%x\n", ptBkpAn73Ability->linkAbility); + e_dev_info(" (0x20- KX_ONLY, 0x40- KX4_ONLY, 0x60- KX4_KX\n"); + e_dev_info(" 0x80- KR_ONLY, 0xA0- KR_KX, 0xC0- KR_KX4, 0xE0- KR_KX4_KX)\n"); + } + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70015); + if (KR_MODE) { + e_dev_info("SR AN MMD LP Base Page Ability Register 3: 0x%x\n", rdata); + e_dev_info(" FEC Request (bit15): %d\n", ((rdata >> 15) & 0x01)); + e_dev_info(" FEC Enable (bit14): %d\n", ((rdata >> 14) & 0x01)); + } + ptBkpAn73Ability->fecAbility = (rdata >> 14) & 0x03; + } else if (byLinkPartner == 2) {/*Link Partner Next Page*/ + /*Read the link partner AN73 Next Page Ability Registers*/ + if (KR_MODE) + e_dev_info("\nRead the link partner AN73 Next Page Ability Registers...\n"); + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70019); + if (KR_MODE) + e_dev_info(" SR AN MMD LP XNP Ability Register 1: 0x%x\n", rdata); + ptBkpAn73Ability->nextPage = (rdata >> 15) & 0x01; + if (KR_MODE) + e_dev_info(" Next Page (bit15): %d\n", ptBkpAn73Ability->nextPage); + } else { + /*Read the local AN73 Base Page Ability Registers*/ + if (KR_MODE) + e_dev_info("\nRead the local AN73 Base Page Ability Registers...\n"); + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70010); + if (KR_MODE) + e_dev_info("SR AN MMD Advertisement Register 1: 0x%x\n", rdata); + ptBkpAn73Ability->nextPage = (rdata >> 15) & 0x01; + if (KR_MODE) + e_dev_info(" Next Page (bit15): %d\n", ptBkpAn73Ability->nextPage); + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70011); + if (KR_MODE) + e_dev_info("SR AN MMD Advertisement Register 2: 0x%x\n", rdata); + ptBkpAn73Ability->linkAbility = rdata & 0xE0; + if (KR_MODE) { + e_dev_info(" Link Ability (bit[15:0]): 0x%x\n", ptBkpAn73Ability->linkAbility); + e_dev_info(" (0x20- KX_ONLY, 0x40- KX4_ONLY, 0x60- KX4_KX\n"); + e_dev_info(" 0x80- KR_ONLY, 0xA0- KR_KX, 0xC0- KR_KX4, 0xE0- KR_KX4_KX)\n"); + } + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70012); + if (KR_MODE) { + e_dev_info("SR AN MMD Advertisement Register 3: 0x%x\n", rdata); + e_dev_info(" FEC Request (bit15): %d\n", ((rdata >> 15) & 0x01)); + e_dev_info(" FEC Enable (bit14): %d\n", ((rdata >> 14) & 0x01)); + } + ptBkpAn73Ability->fecAbility = (rdata >> 14) & 0x03; + } /*if (byLinkPartner == 1) Link Partner Base Page*/ + + if (KR_MODE) + e_dev_info("GetBkpAn73Ability() done.\n"); + + return status; +} + + +/*Get Ethernet Backplane AN73 Base Page Ability +**byLinkPartner: +**- 1: Get Link Partner Base Page +**- 2: Get Link Partner Next Page (only get NXP Ability Register 1 at the moment) +**- 0: Get Local Device Base Page +*/ +int GetBkpAn73Ability(bkpan73ability *ptBkpAn73Ability, unsigned char byLinkPartner, + struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int rdata; + struct txgbe_hw *hw = &adapter->hw; + + if (KR_MODE) { + e_dev_info("GetBkpAn73Ability(): byLinkPartner = %d\n", byLinkPartner); + e_dev_info("----------------------------------------\n"); + } + + if (byLinkPartner == 1) { //Link Partner Base Page + //Read the link partner AN73 Base Page Ability Registers + if (KR_MODE) + e_dev_info("Read the link partner AN73 Base Page Ability Registers...\n"); + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70013); + if (KR_MODE) + e_dev_info("SR AN MMD LP Base Page Ability Register 1: 0x%x\n", rdata); + ptBkpAn73Ability->nextPage = (rdata >> 15) & 0x01; + if (KR_MODE) + e_dev_info(" Next Page (bit15): %d\n", ptBkpAn73Ability->nextPage); + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70014); + if (KR_MODE) + e_dev_info("SR AN MMD LP Base Page Ability Register 2: 0x%x\n", rdata); + ptBkpAn73Ability->linkAbility = rdata & 0xE0; + if (KR_MODE) { + e_dev_info(" Link Ability (bit[15:0]): 0x%x\n", ptBkpAn73Ability->linkAbility); + e_dev_info(" (0x20- KX_ONLY, 0x40- KX4_ONLY, 0x60- KX4_KX\n"); + e_dev_info(" 0x80- KR_ONLY, 0xA0- KR_KX, 0xC0- KR_KX4, 0xE0- KR_KX4_KX)\n"); + } + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70015); + printk("SR AN MMD LP Base Page Ability Register 3: 0x%x\n", rdata); + printk(" FEC Request (bit15): %d\n", ((rdata >> 15) & 0x01)); + printk(" FEC Enable (bit14): %d\n", ((rdata >> 14) & 0x01)); + ptBkpAn73Ability->fecAbility = (rdata >> 14) & 0x03; + } else if (byLinkPartner == 2) { //Link Partner Next Page + //Read the link partner AN73 Next Page Ability Registers + if (KR_MODE) + e_dev_info("Read the link partner AN73 Next Page Ability Registers...\n"); + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70019); + if (KR_MODE) + e_dev_info(" SR AN MMD LP XNP Ability Register 1: 0x%x\n", rdata); + ptBkpAn73Ability->nextPage = (rdata >> 15) & 0x01; + if (KR_MODE) + e_dev_info(" Next Page (bit15): %d\n", ptBkpAn73Ability->nextPage); + } else { + //Read the local AN73 Base Page Ability Registers + if (KR_MODE) + e_dev_info("Read the local AN73 Base Page Ability Registers...\n"); + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70010); + if (KR_MODE) + e_dev_info("SR AN MMD Advertisement Register 1: 0x%x\n", rdata); + ptBkpAn73Ability->nextPage = (rdata >> 15) & 0x01; + if (KR_MODE) + e_dev_info(" Next Page (bit15): %d\n", ptBkpAn73Ability->nextPage); + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70011); + if (KR_MODE) + e_dev_info("SR AN MMD Advertisement Register 2: 0x%x\n", rdata); + ptBkpAn73Ability->linkAbility = rdata & 0xE0; + if (KR_MODE) { + e_dev_info(" Link Ability (bit[15:0]): 0x%x\n", ptBkpAn73Ability->linkAbility); + e_dev_info(" (0x20- KX_ONLY, 0x40- KX4_ONLY, 0x60- KX4_KX\n"); + e_dev_info(" 0x80- KR_ONLY, 0xA0- KR_KX, 0xC0- KR_KX4, 0xE0- KR_KX4_KX)\n"); + } + + rdata = 0; + rdata = txgbe_rd32_epcs(hw, 0x70012); + if (KR_MODE) { + e_dev_info("SR AN MMD Advertisement Register 3: 0x%x\n", rdata); + e_dev_info(" FEC Request (bit15): %d\n", ((rdata >> 15) & 0x01)); + e_dev_info(" FEC Enable (bit14): %d\n", ((rdata >> 14) & 0x01)); + } + ptBkpAn73Ability->fecAbility = (rdata >> 14) & 0x03; + } + + if (KR_MODE) + e_dev_info("GetBkpAn73Ability() done.\n"); + + return status; +} + +/* DESCRIPTION: Set the source data fields[bitHigh:bitLow] with setValue +** INPUTS: *pSrcData: Source data pointer +** bitHigh: High bit position of the fields +** bitLow : Low bit position of the fields +** setValue: Set value of the fields +** OUTPUTS: return the updated source data +*/ +static void SetFields( + unsigned int *pSrcData, + unsigned int bitHigh, + unsigned int bitLow, + unsigned int setValue) +{ + int i; + + if (bitHigh == bitLow) { + if (setValue == 0) { + *pSrcData &= ~(1 << bitLow); + } else { + *pSrcData |= (1 << bitLow); + } + } else { + for (i = bitLow; i <= bitHigh; i++) { + *pSrcData &= ~(1 << i); + } + *pSrcData |= (setValue << bitLow); + } +} + +/*Check Ethernet Backplane AN73 Interrupt status +**- return the value of select interrupt index +*/ +int CheckBkpAn73Interrupt(unsigned int intIndex, struct txgbe_adapter *adapter) +{ + unsigned int rdata; + struct txgbe_hw *hw = &adapter->hw; + + if (KR_MODE) { + e_dev_info("CheckBkpAn73Interrupt(): intIndex = %d\n", intIndex); + e_dev_info("----------------------------------------\n"); + } + + rdata = 0x0000; + rdata = txgbe_rd32_epcs(hw, 0x78002); + if (KR_MODE) { + e_dev_info("Read VR AN MMD Interrupt Register: 0x%x\n", rdata); + e_dev_info("Interrupt: 0- AN_INT_CMPLT, 1- AN_INC_LINK, 2- AN_PG_RCV\n\n"); + } + + return ((rdata >> intIndex) & 0x01); +} + +/*Clear Ethernet Backplane AN73 Interrupt status +**- intIndexHi =0, only intIndex bit will be cleared +**- intIndexHi !=0, the [intIndexHi, intIndex] range will be cleared +*/ +int ClearBkpAn73Interrupt(unsigned int intIndex, unsigned int intIndexHi, struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int rdata, wdata; + struct txgbe_hw *hw = &adapter->hw; + + if (KR_MODE) { + e_dev_info("ClearBkpAn73Interrupt(): intIndex = %d\n", intIndex); + e_dev_info("----------------------------------------\n"); + } + + rdata = 0x0000; + rdata = txgbe_rd32_epcs(hw, 0x78002); + if (KR_MODE) + e_dev_info("[Before clear] Read VR AN MMD Interrupt Register: 0x%x\n", rdata); + + wdata = rdata; + if (intIndexHi) { + SetFields(&wdata, intIndexHi, intIndex, 0); + } else { + SetFields(&wdata, intIndex, intIndex, 0); + } + txgbe_wr32_epcs(hw, 0x78002, wdata); + + rdata = 0x0000; + rdata = txgbe_rd32_epcs(hw, 0x78002); + if (KR_MODE) { + e_dev_info("[After clear] Read VR AN MMD Interrupt Register: 0x%x\n", rdata); + e_dev_info("\n"); + } + + return status; +} + +int WaitBkpAn73XnpDone(struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int timer = 0; + bkpan73ability tLpBkpAn73Ability; + + /*while(timer++ < BKPAN73_TIMEOUT)*/ + while (timer++ < 20) { + if (CheckBkpAn73Interrupt(2, adapter)) { + /*Clear the AN_PG_RCV interrupt*/ + ClearBkpAn73Interrupt(2, 0, adapter); + + /*Get the link partner AN73 Next Page Ability*/ + Get_bkp_an73_ability(&tLpBkpAn73Ability, 2, adapter); + + /*Return when AN_LP_XNP_NP == 0, (bit[15]: Next Page)*/ + if (tLpBkpAn73Ability.nextPage == 0) { + return status; + } + } + msleep(200); + } /*while(timer++ < BKPAN73_TIMEOUT)*/ + if (KR_MODE) + e_dev_info("ERROR: Wait all the AN73 next pages to be exchanged Timeout!!!\n"); + + return -1; +} + +int ReadPhyLaneTxEq(unsigned short lane, struct txgbe_adapter *adapter, int post_t, int mode) +{ + int status = 0; + unsigned int addr, rdata; + struct txgbe_hw *hw = &adapter->hw; + u32 pre; + u32 post; + u32 lmain; + + /*LANEN_DIG_ASIC_TX_ASIC_IN_1[11:6]: TX_MAIN_CURSOR*/ + rdata = 0; + addr = 0x100E | (lane << 8); + rdata = rd32_ephy(hw, addr); + if (KR_MODE) { + e_dev_info("PHY LANE%0d TX EQ Read Value:\n", lane); + e_dev_info(" TX_MAIN_CURSOR: %d\n", ((rdata >> 6) & 0x3F)); + } + + /*LANEN_DIG_ASIC_TX_ASIC_IN_2[5 :0]: TX_PRE_CURSOR*/ + /*LANEN_DIG_ASIC_TX_ASIC_IN_2[11:6]: TX_POST_CURSOR*/ + rdata = 0; + addr = 0x100F | (lane << 8); + rdata = rd32_ephy(hw, addr); + if (KR_MODE) { + e_dev_info(" TX_PRE_CURSOR : %d\n", (rdata & 0x3F)); + e_dev_info(" TX_POST_CURSOR: %d\n", ((rdata >> 6) & 0x3F)); + e_dev_info("**********************************************\n"); + } + + if (mode == 1) { + pre = (rdata & 0x3F); + post = ((rdata >> 6) & 0x3F); + if ((160 - pre -post) < 88) + lmain = 88; + else + lmain = 160 - pre - post; + if (post_t != 0) + post = post_t; + txgbe_wr32_epcs(hw, 0x1803b, post); + txgbe_wr32_epcs(hw, 0x1803a, pre | (lmain << 8)); + txgbe_wr32_epcs(hw, 0x18037, txgbe_rd32_epcs(hw, 0x18037) & 0xff7f); + } + if (KR_MODE) + e_dev_info("**********************************************\n"); + + return status; +} + + +/*Enable Clause 72 KR training +** +**Note: +**<1>. The Clause 72 start-up protocol should be initiated when all pages are exchanged during Clause 73 auto- +**negotiation and when the auto-negotiation process is waiting for link status to be UP for 500 ms after +**exchanging all the pages. +** +**<2>. The local device and link partner should be enabled the CL72 KR training +**with in 500ms +** +**enable: +**- bits[1:0] =2'b11: Enable the CL72 KR training +**- bits[1:0] =2'b01: Disable the CL72 KR training +*/ +int EnableCl72KrTr(unsigned int enable, struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int wdata = 0; + struct txgbe_hw *hw = &adapter->hw; + + if (enable == 1) { + if (KR_MODE) + e_dev_info("\nDisable Clause 72 KR Training ...\n"); + status |= ReadPhyLaneTxEq(0, adapter, 0, 0); + } else if (enable == 4) { + status |= ReadPhyLaneTxEq(0, adapter, 20, 1); + } else if (enable == 8) { + status |= ReadPhyLaneTxEq(0, adapter, 16, 1); + } else if (enable == 12) { + status |= ReadPhyLaneTxEq(0, adapter, 24, 1); + } else if (enable == 5) { + status |= ReadPhyLaneTxEq(0, adapter, 0, 1); + } else if (enable == 3) { + if (KR_MODE) + e_dev_info("\nEnable Clause 72 KR Training ...\n"); + + if (CL72_KRTR_PRBS_MODE_EN != 0xffff) { + /*Set PRBS Timer Duration Control to maximum 6.7ms in VR_PMA_KRTR_PRBS_CTRL1 Register*/ + wdata = CL72_KRTR_PRBS_MODE_EN; + txgbe_wr32_epcs(hw, 0x18005, wdata); + /*Set PRBS Timer Duration Control to maximum 6.7ms in VR_PMA_KRTR_PRBS_CTRL1 Register*/ + wdata = 0xFFFF; + txgbe_wr32_epcs(hw, 0x18004, wdata); + + /*Enable PRBS Mode to determine KR Training Status by setting Bit 0 of VR_PMA_KRTR_PRBS_CTRL0 Register*/ + wdata = 0; + SetFields(&wdata, 0, 0, 1); + } + +#ifdef CL72_KRTR_PRBS31_EN + /*Enable PRBS31 as the KR Training Pattern by setting Bit 1 of VR_PMA_KRTR_PRBS_CTRL0 Register*/ + SetFields(&wdata, 1, 1, 1); +#endif /*#ifdef CL72_KRTR_PRBS31_EN*/ + txgbe_wr32_epcs(hw, 0x18003, wdata); + status |= ReadPhyLaneTxEq(0, adapter, 0, 0); + } else { + if (KR_MODE) + e_dev_info("\nInvalid setting for Clause 72 KR Training!!!\n"); + return -1; + } + + /*Enable the Clause 72 start-up protocol by setting Bit 1 of SR_PMA_KR_PMD_CTRL Register. + **Restart the Clause 72 start-up protocol by setting Bit 0 of SR_PMA_KR_PMD_CTRL Register*/ + wdata = enable; + txgbe_wr32_epcs(hw, 0x10096, wdata); + return status; +} + +int CheckCl72KrTrStatus(struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int addr, rdata, rdata1; + unsigned int timer = 0, times = 0; + struct txgbe_hw *hw = &adapter->hw; + + times = KR_POLLING ? 35 : 20; + + /*While loop to check clause 72 KR training status*/ + while (timer++ < times) { + //Get the latest received coefficient update or status + rdata = 0; + addr = 0x010098; + rdata = txgbe_rd32_epcs(hw, addr); + if (KR_MODE) + e_dev_info("SR PMA MMD 10GBASE-KR LP Coefficient Update Register: 0x%x\n", rdata); + + rdata = 0; + addr = 0x010099; + rdata = txgbe_rd32_epcs(hw, addr); + if (KR_MODE) + e_dev_info("SR PMA MMD 10GBASE-KR LP Coefficient Status Register: 0x%x\n", rdata); + + rdata = 0; + addr = 0x01009a; + rdata = txgbe_rd32_epcs(hw, addr); + if (KR_MODE) + e_dev_info("SR PMA MMD 10GBASE-KR LD Coefficient Update: 0x%x\n", rdata); + + rdata = 0; + addr = 0x01009b; + rdata = txgbe_rd32_epcs(hw, addr); + if (KR_MODE) + e_dev_info(" SR PMA MMD 10GBASE-KR LD Coefficient Status: 0x%x\n", rdata); + + rdata = 0; + addr = 0x010097; + rdata = txgbe_rd32_epcs(hw, addr); + if (KR_MODE) { + e_dev_info("SR PMA MMD 10GBASE-KR Status Register: 0x%x\n", rdata); + e_dev_info(" Training Failure (bit3): %d\n", ((rdata >> 3) & 0x01)); + e_dev_info(" Start-Up Protocol Status (bit2): %d\n", ((rdata >> 2) & 0x01)); + e_dev_info(" Frame Lock (bit1): %d\n", ((rdata >> 1) & 0x01)); + e_dev_info(" Receiver Status (bit0): %d\n", ((rdata >> 0) & 0x01)); + } + + rdata1 = txgbe_rd32_epcs(hw, 0x10099) & 0x8000; + if (rdata1 == 0x8000) { + adapter->flags2 |= KR; + if (KR_MODE) + e_dev_info("TEST Coefficient Status Register: 0x%x\n", rdata); + } + /*If bit3 is set, Training is completed with failure*/ + if ((rdata >> 3) & 0x01) { + if (KR_MODE) + e_dev_info("Training is completed with failure!!!\n"); + status |= ReadPhyLaneTxEq(0, adapter, 0, 0); + return status; + } + + /*If bit0 is set, Receiver trained and ready to receive data*/ + if ((rdata >> 0) & 0x01) { + if (KR_MODE) + e_dev_info("Receiver trained and ready to receive data ^_^\n"); + status |= ReadPhyLaneTxEq(0, adapter, 0, 0); + return status; + } + + msleep(20); + } + + if (KR_MODE) + e_dev_info("ERROR: Check Clause 72 KR Training Complete Timeout!!!\n"); + + return status; +} + +int Handle_bkp_an73_flow(unsigned char byLinkMode, struct txgbe_adapter *adapter) +{ + int status = 0; + unsigned int timer = 0; + unsigned int addr, data; + bkpan73ability tBkpAn73Ability, tLpBkpAn73Ability; + u32 i = 0; + u32 rdata = 0; + u32 rdata1 = 0; + struct txgbe_hw *hw = &adapter->hw; + tBkpAn73Ability.currentLinkMode = byLinkMode; + + if (KR_MODE) { + e_dev_info("HandleBkpAn73Flow() \n"); + e_dev_info("---------------------------------\n"); + } + + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0); + txgbe_wr32_epcs(hw, 0x78003, 0x0); + + /*Check the FEC and KR Training for KR mode*/ + if (1) { + //FEC handling + if (KR_MODE) + e_dev_info("<3.3>. Check the FEC for KR mode ...\n"); + tBkpAn73Ability.fecAbility = 0x03; + tLpBkpAn73Ability.fecAbility = 0x0; + if ((tBkpAn73Ability.fecAbility & tLpBkpAn73Ability.fecAbility) == 0x03) { + if (KR_MODE) + e_dev_info("Enable the Backplane KR FEC ...\n"); + //Write 1 to SR_PMA_KR_FEC_CTRL bit0 to enable the FEC + data = 1; + addr = 0x100ab; //SR_PMA_KR_FEC_CTRL + txgbe_wr32_epcs(hw, addr, data); + } else { + if (KR_MODE) + e_dev_info("Backplane KR FEC is disabled.\n"); + } +#ifdef CL72_KR_TRAINING_ON + for (i = 0; i < 2; i++) { + if (KR_MODE) { + e_dev_info("\n<3.4>. Check the CL72 KR Training for KR mode ...\n"); + printk("===================%d=======================\n", i); + } + + status |= EnableCl72KrTr(3, adapter); + + if (KR_MODE) + e_dev_info("\nCheck the Clause 72 KR Training status ...\n"); + status |= CheckCl72KrTrStatus(adapter); + + rdata = txgbe_rd32_epcs(hw, 0x10099) & 0x8000; + if (KR_MODE) + e_dev_info("SR PMA MMD 10GBASE-KR LP Coefficient Status Register: 0x%x\n", rdata); + rdata1 = txgbe_rd32_epcs(hw, 0x1009b) & 0x8000; + if (KR_MODE) + e_dev_info("SR PMA MMD 10GBASE-KR LP Coefficient Status Register: 0x%x\n", rdata1); + if (KR_POLLING == 0) { + if (adapter->flags2 & KR) { + rdata = 0x8000; + adapter->flags2 &= ~KR; + } + } + if ((rdata == 0x8000) & (rdata1 == 0x8000)) { + if (KR_MODE) + e_dev_info("====================out===========================\n"); + status |= EnableCl72KrTr(1, adapter); + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0000); + ClearBkpAn73Interrupt(2, 0, adapter); + ClearBkpAn73Interrupt(1, 0, adapter); + ClearBkpAn73Interrupt(0, 0, adapter); + while (timer++ < 10) { + rdata = txgbe_rd32_epcs(hw, 0x30020); + rdata = rdata & 0x1000; + if (rdata == 0x1000) { + if (KR_MODE) + e_dev_info("\nINT_AN_INT_CMPLT =1, AN73 Done Success.\n"); + e_dev_info("AN73 Done Success.\n"); + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0000); + return 0; + } + msleep(10); + } + msleep(1000); + txgbe_set_link_to_kr(hw, 1); + + return 0; + } + + status |= EnableCl72KrTr(1, adapter); + } +#endif + } + ClearBkpAn73Interrupt(0, 0, adapter); + ClearBkpAn73Interrupt(1, 0, adapter); + ClearBkpAn73Interrupt(2, 0, adapter); + + return status; +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_bp.h b/drivers/net/ethernet/netswift/txgbe/txgbe_bp.h new file mode 100644 index 0000000000000..c5f0dc5072164 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_bp.h @@ -0,0 +1,41 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + + +#ifndef _TXGBE_BP_H_ +#define _TXGBE_BP_H_ + +#include "txgbe.h" +#include "txgbe_hw.h" + +#define CL72_KR_TRAINING_ON + +/* Backplane AN73 Base Page Ability struct*/ +typedef struct TBKPAN73ABILITY { + unsigned int nextPage; //Next Page (bit0) + unsigned int linkAbility; //Link Ability (bit[7:0]) + unsigned int fecAbility; //FEC Request (bit1), FEC Enable (bit0) + unsigned int currentLinkMode; //current link mode for local device +} bkpan73ability; + +int txgbe_kr_intr_handle(struct txgbe_adapter *adapter); +void txgbe_bp_down_event(struct txgbe_adapter *adapter); +void txgbe_bp_watchdog_event(struct txgbe_adapter *adapter); +int txgbe_bp_mode_setting(struct txgbe_adapter *adapter); +void txgbe_bp_close_protect(struct txgbe_adapter *adapter); + +#endif diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_dcb.h b/drivers/net/ethernet/netswift/txgbe/txgbe_dcb.h new file mode 100644 index 0000000000000..495460e1db8c7 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_dcb.h @@ -0,0 +1,30 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_dcb.h, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#ifndef _TXGBE_DCB_H_ +#define _TXGBE_DCB_H_ + +#include "txgbe_type.h" + +#endif /* _TXGBE_DCB_H_ */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_ethtool.c b/drivers/net/ethernet/netswift/txgbe/txgbe_ethtool.c new file mode 100644 index 0000000000000..5cb8ef61e04b3 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_ethtool.c @@ -0,0 +1,3381 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_ethtool.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + +/* ethtool support for txgbe */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/vmalloc.h> +#include <linux/highmem.h> +#include <linux/firmware.h> +#include <linux/net_tstamp.h> +#include <asm/uaccess.h> + +#include "txgbe.h" +#include "txgbe_hw.h" +#include "txgbe_phy.h" + +#define TXGBE_ALL_RAR_ENTRIES 16 + +struct txgbe_stats { + char stat_string[ETH_GSTRING_LEN]; + int sizeof_stat; + int stat_offset; +}; + +#define TXGBE_NETDEV_STAT(_net_stat) { \ + .stat_string = #_net_stat, \ + .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \ + .stat_offset = offsetof(struct net_device_stats, _net_stat) \ +} +static const struct txgbe_stats txgbe_gstrings_net_stats[] = { + TXGBE_NETDEV_STAT(rx_packets), + TXGBE_NETDEV_STAT(tx_packets), + TXGBE_NETDEV_STAT(rx_bytes), + TXGBE_NETDEV_STAT(tx_bytes), + TXGBE_NETDEV_STAT(rx_errors), + TXGBE_NETDEV_STAT(tx_errors), + TXGBE_NETDEV_STAT(rx_dropped), + TXGBE_NETDEV_STAT(tx_dropped), + TXGBE_NETDEV_STAT(multicast), + TXGBE_NETDEV_STAT(collisions), + TXGBE_NETDEV_STAT(rx_over_errors), + TXGBE_NETDEV_STAT(rx_crc_errors), + TXGBE_NETDEV_STAT(rx_frame_errors), + TXGBE_NETDEV_STAT(rx_fifo_errors), + TXGBE_NETDEV_STAT(rx_missed_errors), + TXGBE_NETDEV_STAT(tx_aborted_errors), + TXGBE_NETDEV_STAT(tx_carrier_errors), + TXGBE_NETDEV_STAT(tx_fifo_errors), + TXGBE_NETDEV_STAT(tx_heartbeat_errors), +}; + +#define TXGBE_STAT(_name, _stat) { \ + .stat_string = _name, \ + .sizeof_stat = FIELD_SIZEOF(struct txgbe_adapter, _stat), \ + .stat_offset = offsetof(struct txgbe_adapter, _stat) \ +} +static struct txgbe_stats txgbe_gstrings_stats[] = { + TXGBE_STAT("rx_pkts_nic", stats.gprc), + TXGBE_STAT("tx_pkts_nic", stats.gptc), + TXGBE_STAT("rx_bytes_nic", stats.gorc), + TXGBE_STAT("tx_bytes_nic", stats.gotc), + TXGBE_STAT("lsc_int", lsc_int), + TXGBE_STAT("tx_busy", tx_busy), + TXGBE_STAT("non_eop_descs", non_eop_descs), + TXGBE_STAT("broadcast", stats.bprc), + TXGBE_STAT("rx_no_buffer_count", stats.rnbc[0]), + TXGBE_STAT("tx_timeout_count", tx_timeout_count), + TXGBE_STAT("tx_restart_queue", restart_queue), + TXGBE_STAT("rx_long_length_count", stats.roc), + TXGBE_STAT("rx_short_length_count", stats.ruc), + TXGBE_STAT("tx_flow_control_xon", stats.lxontxc), + TXGBE_STAT("rx_flow_control_xon", stats.lxonrxc), + TXGBE_STAT("tx_flow_control_xoff", stats.lxofftxc), + TXGBE_STAT("rx_flow_control_xoff", stats.lxoffrxc), + TXGBE_STAT("rx_csum_offload_good_count", hw_csum_rx_good), + TXGBE_STAT("rx_csum_offload_errors", hw_csum_rx_error), + TXGBE_STAT("alloc_rx_page_failed", alloc_rx_page_failed), + TXGBE_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed), + TXGBE_STAT("rx_no_dma_resources", hw_rx_no_dma_resources), + TXGBE_STAT("hw_rsc_aggregated", rsc_total_count), + TXGBE_STAT("hw_rsc_flushed", rsc_total_flush), + TXGBE_STAT("fdir_match", stats.fdirmatch), + TXGBE_STAT("fdir_miss", stats.fdirmiss), + TXGBE_STAT("fdir_overflow", fdir_overflow), + TXGBE_STAT("os2bmc_rx_by_bmc", stats.o2bgptc), + TXGBE_STAT("os2bmc_tx_by_bmc", stats.b2ospc), + TXGBE_STAT("os2bmc_tx_by_host", stats.o2bspc), + TXGBE_STAT("os2bmc_rx_by_host", stats.b2ogprc), + TXGBE_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), + TXGBE_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), +}; + +/* txgbe allocates num_tx_queues and num_rx_queues symmetrically so + * we set the num_rx_queues to evaluate to num_tx_queues. This is + * used because we do not have a good way to get the max number of + * rx queues with CONFIG_RPS disabled. + */ +#define TXGBE_NUM_RX_QUEUES netdev->num_tx_queues +#define TXGBE_NUM_TX_QUEUES netdev->num_tx_queues + +#define TXGBE_QUEUE_STATS_LEN ( \ + (TXGBE_NUM_TX_QUEUES + TXGBE_NUM_RX_QUEUES) * \ + (sizeof(struct txgbe_queue_stats) / sizeof(u64))) +#define TXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(txgbe_gstrings_stats) +#define TXGBE_NETDEV_STATS_LEN ARRAY_SIZE(txgbe_gstrings_net_stats) +#define TXGBE_PB_STATS_LEN ( \ + (sizeof(((struct txgbe_adapter *)0)->stats.pxonrxc) + \ + sizeof(((struct txgbe_adapter *)0)->stats.pxontxc) + \ + sizeof(((struct txgbe_adapter *)0)->stats.pxoffrxc) + \ + sizeof(((struct txgbe_adapter *)0)->stats.pxofftxc)) \ + / sizeof(u64)) +#define TXGBE_VF_STATS_LEN \ + ((((struct txgbe_adapter *)netdev_priv(netdev))->num_vfs) * \ + (sizeof(struct vf_stats) / sizeof(u64))) +#define TXGBE_STATS_LEN (TXGBE_GLOBAL_STATS_LEN + \ + TXGBE_NETDEV_STATS_LEN + \ + TXGBE_PB_STATS_LEN + \ + TXGBE_QUEUE_STATS_LEN + \ + TXGBE_VF_STATS_LEN) + +static const char txgbe_gstrings_test[][ETH_GSTRING_LEN] = { + "Register test (offline)", "Eeprom test (offline)", + "Interrupt test (offline)", "Loopback test (offline)", + "Link test (on/offline)" +}; +#define TXGBE_TEST_LEN (sizeof(txgbe_gstrings_test) / ETH_GSTRING_LEN) + +/* currently supported speeds for 10G */ +#define ADVERTISED_MASK_10G (SUPPORTED_10000baseT_Full | \ + SUPPORTED_10000baseKX4_Full | \ + SUPPORTED_10000baseKR_Full) + +#define txgbe_isbackplane(type) \ + ((type == txgbe_media_type_backplane) ? true : false) + +static __u32 txgbe_backplane_type(struct txgbe_hw *hw) +{ + __u32 mode = 0x00; + switch (hw->phy.link_mode) { + case TXGBE_PHYSICAL_LAYER_10GBASE_KX4: + mode = SUPPORTED_10000baseKX4_Full; + break; + case TXGBE_PHYSICAL_LAYER_10GBASE_KR: + mode = SUPPORTED_10000baseKR_Full; + break; + case TXGBE_PHYSICAL_LAYER_1000BASE_KX: + mode = SUPPORTED_1000baseKX_Full; + break; + default: + mode = (SUPPORTED_10000baseKX4_Full | + SUPPORTED_10000baseKR_Full | + SUPPORTED_1000baseKX_Full); + break; + } + return mode; +} + +int txgbe_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u32 supported_link; + u32 link_speed = 0; + bool autoneg = false; + u32 supported, advertising; + bool link_up; + + ethtool_convert_link_mode_to_legacy_u32(&supported, + cmd->link_modes.supported); + + TCALL(hw, mac.ops.get_link_capabilities, &supported_link, &autoneg); + + if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_KR_KX_KX4) + autoneg = adapter->backplane_an ? 1:0; + else if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_MAC_SGMII) + autoneg = adapter->an37?1:0; + + /* set the supported link speeds */ + if (supported_link & TXGBE_LINK_SPEED_10GB_FULL) + supported |= (txgbe_isbackplane(hw->phy.media_type)) ? + txgbe_backplane_type(hw) : SUPPORTED_10000baseT_Full; + if (supported_link & TXGBE_LINK_SPEED_1GB_FULL) + supported |= (txgbe_isbackplane(hw->phy.media_type)) ? + SUPPORTED_1000baseKX_Full : SUPPORTED_1000baseT_Full; + if (supported_link & TXGBE_LINK_SPEED_100_FULL) + supported |= SUPPORTED_100baseT_Full; + if (supported_link & TXGBE_LINK_SPEED_10_FULL) + supported |= SUPPORTED_10baseT_Full; + + /* default advertised speed if phy.autoneg_advertised isn't set */ + advertising = supported; + + /* set the advertised speeds */ + if (hw->phy.autoneg_advertised) { + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_100_FULL) + advertising |= ADVERTISED_100baseT_Full; + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_10GB_FULL) + advertising |= (supported & ADVERTISED_MASK_10G); + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_1GB_FULL) { + if (supported & SUPPORTED_1000baseKX_Full) + advertising |= ADVERTISED_1000baseKX_Full; + else + advertising |= ADVERTISED_1000baseT_Full; + } + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_10_FULL) + advertising |= ADVERTISED_10baseT_Full; + } else { + /* default modes in case phy.autoneg_advertised isn't set */ + if (supported_link & TXGBE_LINK_SPEED_10GB_FULL) + advertising |= ADVERTISED_10000baseT_Full; + if (supported_link & TXGBE_LINK_SPEED_1GB_FULL) + advertising |= ADVERTISED_1000baseT_Full; + if (supported_link & TXGBE_LINK_SPEED_100_FULL) + advertising |= ADVERTISED_100baseT_Full; + if (hw->phy.multispeed_fiber && !autoneg) { + if (supported_link & TXGBE_LINK_SPEED_10GB_FULL) + advertising = ADVERTISED_10000baseT_Full; + } + if (supported_link & TXGBE_LINK_SPEED_10_FULL) + advertising |= ADVERTISED_10baseT_Full; + } + + if (autoneg) { + supported |= SUPPORTED_Autoneg; + advertising |= ADVERTISED_Autoneg; + cmd->base.autoneg = AUTONEG_ENABLE; + } else + cmd->base.autoneg = AUTONEG_DISABLE; + + /* Determine the remaining settings based on the PHY type. */ + switch (adapter->hw.phy.type) { + case txgbe_phy_tn: + case txgbe_phy_aq: + case txgbe_phy_cu_unknown: + supported |= SUPPORTED_TP; + advertising |= ADVERTISED_TP; + cmd->base.port = PORT_TP; + break; + case txgbe_phy_qt: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_FIBRE; + break; + case txgbe_phy_nl: + case txgbe_phy_sfp_passive_tyco: + case txgbe_phy_sfp_passive_unknown: + case txgbe_phy_sfp_ftl: + case txgbe_phy_sfp_avago: + case txgbe_phy_sfp_intel: + case txgbe_phy_sfp_unknown: + switch (adapter->hw.phy.sfp_type) { + /* SFP+ devices, further checking needed */ + case txgbe_sfp_type_da_cu: + case txgbe_sfp_type_da_cu_core0: + case txgbe_sfp_type_da_cu_core1: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_DA; + break; + case txgbe_sfp_type_sr: + case txgbe_sfp_type_lr: + case txgbe_sfp_type_srlr_core0: + case txgbe_sfp_type_srlr_core1: + case txgbe_sfp_type_1g_sx_core0: + case txgbe_sfp_type_1g_sx_core1: + case txgbe_sfp_type_1g_lx_core0: + case txgbe_sfp_type_1g_lx_core1: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_FIBRE; + break; + case txgbe_sfp_type_not_present: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_NONE; + break; + case txgbe_sfp_type_1g_cu_core0: + case txgbe_sfp_type_1g_cu_core1: + supported |= SUPPORTED_TP; + advertising |= ADVERTISED_TP; + cmd->base.port = PORT_TP; + break; + case txgbe_sfp_type_unknown: + default: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_OTHER; + break; + } + break; + case txgbe_phy_xaui: + supported |= SUPPORTED_TP; + advertising |= ADVERTISED_TP; + cmd->base.port = PORT_TP; + break; + case txgbe_phy_unknown: + case txgbe_phy_generic: + case txgbe_phy_sfp_unsupported: + default: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_OTHER; + break; + } + + if (!in_interrupt()) { + TCALL(hw, mac.ops.check_link, &link_speed, &link_up, false); + } else { + /* + * this case is a special workaround for RHEL5 bonding + * that calls this routine from interrupt context + */ + link_speed = adapter->link_speed; + link_up = adapter->link_up; + } + + supported |= SUPPORTED_Pause; + + switch (hw->fc.requested_mode) { + case txgbe_fc_full: + advertising |= ADVERTISED_Pause; + break; + case txgbe_fc_rx_pause: + advertising |= ADVERTISED_Pause | + ADVERTISED_Asym_Pause; + break; + case txgbe_fc_tx_pause: + advertising |= ADVERTISED_Asym_Pause; + break; + default: + advertising &= ~(ADVERTISED_Pause | + ADVERTISED_Asym_Pause); + } + + if (link_up) { + switch (link_speed) { + case TXGBE_LINK_SPEED_10GB_FULL: + cmd->base.speed = SPEED_10000; + break; + case TXGBE_LINK_SPEED_1GB_FULL: + cmd->base.speed = SPEED_1000; + break; + case TXGBE_LINK_SPEED_100_FULL: + cmd->base.speed = SPEED_100; + break; + case TXGBE_LINK_SPEED_10_FULL: + cmd->base.speed = SPEED_10; + break; + default: + break; + } + cmd->base.duplex = DUPLEX_FULL; + } else { + cmd->base.speed = -1; + cmd->base.duplex = -1; + } + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + return 0; +} + +static int txgbe_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u32 advertised, old; + s32 err = 0; + u32 supported, advertising; + ethtool_convert_link_mode_to_legacy_u32(&supported, + cmd->link_modes.supported); + ethtool_convert_link_mode_to_legacy_u32(&advertising, + cmd->link_modes.advertising); + + if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_KR_KX_KX4) { + adapter->backplane_an = cmd->base.autoneg ? 1 : 0; + } else if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_MAC_SGMII) { + adapter->an37 = cmd->base.autoneg ? 1 : 0; + } + + if ((hw->phy.media_type == txgbe_media_type_copper) || + (hw->phy.multispeed_fiber)) { + /* + * this function does not support duplex forcing, but can + * limit the advertising of the adapter to the specified speed + */ + if (advertising & ~supported) + return -EINVAL; + + /* only allow one speed at a time if no autoneg */ + if (!cmd->base.autoneg && hw->phy.multispeed_fiber) { + if (advertising == + (ADVERTISED_10000baseT_Full | + ADVERTISED_1000baseT_Full)) + return -EINVAL; + } + old = hw->phy.autoneg_advertised; + advertised = 0; + if (advertising & ADVERTISED_10000baseT_Full) + advertised |= TXGBE_LINK_SPEED_10GB_FULL; + + if (advertising & ADVERTISED_1000baseT_Full) + advertised |= TXGBE_LINK_SPEED_1GB_FULL; + + if (advertising & ADVERTISED_100baseT_Full) + advertised |= TXGBE_LINK_SPEED_100_FULL; + + if (advertising & ADVERTISED_10baseT_Full) + advertised |= TXGBE_LINK_SPEED_10_FULL; + + if (old == advertised) + return err; + /* this sets the link speed and restarts auto-neg */ + while (test_and_set_bit(__TXGBE_IN_SFP_INIT, &adapter->state)) + usleep_range(1000, 2000); + + hw->mac.autotry_restart = true; + err = TCALL(hw, mac.ops.setup_link, advertised, true); + if (err) { + e_info(probe, "setup link failed with code %d\n", err); + TCALL(hw, mac.ops.setup_link, old, true); + } + if ((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) + TCALL(hw, mac.ops.flap_tx_laser); + clear_bit(__TXGBE_IN_SFP_INIT, &adapter->state); + } else if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_KR_KX_KX4 || + (hw->subsystem_device_id & 0xF0) == TXGBE_ID_MAC_SGMII) { + if (!cmd->base.autoneg) { + if (advertising == + (ADVERTISED_10000baseKR_Full | + ADVERTISED_1000baseKX_Full | + ADVERTISED_10000baseKX4_Full)) + return -EINVAL; + } else { + err = txgbe_set_link_to_kr(hw, 1); + return err; + } + advertised = 0; + if (advertising & ADVERTISED_10000baseKR_Full) { + err = txgbe_set_link_to_kr(hw, 1); + advertised |= TXGBE_LINK_SPEED_10GB_FULL; + return err; + } else if (advertising & ADVERTISED_10000baseKX4_Full) { + err = txgbe_set_link_to_kx4(hw, 1); + advertised |= TXGBE_LINK_SPEED_10GB_FULL; + return err; + } else if (advertising & ADVERTISED_1000baseKX_Full) { + advertised |= TXGBE_LINK_SPEED_1GB_FULL; + err = txgbe_set_link_to_kx(hw, TXGBE_LINK_SPEED_1GB_FULL, 0); + return err; + } + return err; + } else { + /* in this case we currently only support 10Gb/FULL */ + u32 speed = cmd->base.speed; + if ((cmd->base.autoneg == AUTONEG_ENABLE) || + (advertising != ADVERTISED_10000baseT_Full) || + (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL)) + return -EINVAL; + } + + return err; +} + +static void txgbe_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + + if (txgbe_device_supports_autoneg_fc(hw) && + !hw->fc.disable_fc_autoneg) + pause->autoneg = 1; + else + pause->autoneg = 0; + + if (hw->fc.current_mode == txgbe_fc_rx_pause) { + pause->rx_pause = 1; + } else if (hw->fc.current_mode == txgbe_fc_tx_pause) { + pause->tx_pause = 1; + } else if (hw->fc.current_mode == txgbe_fc_full) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } +} + +static int txgbe_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_fc_info fc = hw->fc; + + /* some devices do not support autoneg of flow control */ + if ((pause->autoneg == AUTONEG_ENABLE) && + !txgbe_device_supports_autoneg_fc(hw)) + return -EINVAL; + + fc.disable_fc_autoneg = (pause->autoneg != AUTONEG_ENABLE); + + if ((pause->rx_pause && pause->tx_pause) || pause->autoneg) + fc.requested_mode = txgbe_fc_full; + else if (pause->rx_pause) + fc.requested_mode = txgbe_fc_rx_pause; + else if (pause->tx_pause) + fc.requested_mode = txgbe_fc_tx_pause; + else + fc.requested_mode = txgbe_fc_none; + + /* if the thing changed then we'll update and use new autoneg */ + if (memcmp(&fc, &hw->fc, sizeof(struct txgbe_fc_info))) { + hw->fc = fc; + if (netif_running(netdev)) + txgbe_reinit_locked(adapter); + else + txgbe_reset(adapter); + } + + return 0; +} + +static u32 txgbe_get_msglevel(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} + +static void txgbe_set_msglevel(struct net_device *netdev, u32 data) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = data; +} + +#define TXGBE_REGS_LEN 4096 +static int txgbe_get_regs_len(struct net_device __always_unused *netdev) +{ + return TXGBE_REGS_LEN * sizeof(u32); +} + +#define TXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_) + +static void txgbe_get_regs(struct net_device *netdev, struct ethtool_regs *regs, + void *p) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u32 *regs_buff = p; + u32 i; + u32 id = 0; + + memset(p, 0, TXGBE_REGS_LEN * sizeof(u32)); + regs_buff[TXGBE_REGS_LEN - 1] = 0x55555555; + + regs->version = hw->revision_id << 16 | + hw->device_id; + + /* Global Registers */ + /* chip control */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_PWR);//0 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_CTL);//1 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_PF_SM);//2 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_RST);//3 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_ST);//4 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_SWSM);//5 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_MIS_RST_ST);//6 + /* pvt sensor */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_CTL);//7 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_EN);//8 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_ST);//9 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_ALARM_THRE);//10 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_DALARM_THRE);//11 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_INT_EN);//12 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TS_ALARM_ST);//13 + /* Fmgr Register */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_CMD);//14 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_DATA);//15 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_STATUS);//16 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_USR_CMD);//17 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_CMDCFG0);//18 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_CMDCFG1);//19 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_ILDR_STATUS);//20 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_SPI_ILDR_SWPTR);//21 + + /* Port Registers */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_PORT_CTL);//22 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_PORT_ST);//23 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_EX_VTYPE);//24 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_VXLAN);//25 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_VXLAN_GPE);//26 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_GENEVE);//27 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_TEREDO);//28 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_TCP_TIME);//29 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_LED_CTL);//30 + /* GPIO */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_GPIO_DR);//31 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_GPIO_DDR);//32 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_GPIO_CTL);//33 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_GPIO_INTEN);//34 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_GPIO_INTMASK);//35 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_GPIO_INTSTATUS);//36 + /* I2C */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CON);//37 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_TAR);//38 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_DATA_CMD);//39 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_SS_SCL_HCNT);//40 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_SS_SCL_LCNT);//41 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_FS_SCL_HCNT);//42 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_FS_SCL_LCNT);//43 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_HS_SCL_HCNT);//44 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_INTR_STAT);//45 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_INTR_MASK);//46 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_RAW_INTR_STAT);//47 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_RX_TL);//48 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_TX_TL);//49 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_INTR);//50 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_RX_UNDER);//51 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_RX_OVER);//52 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_TX_OVER);//53 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_RD_REQ);//54 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_TX_ABRT);//55 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_RX_DONE);//56 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_ACTIVITY);//57 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_STOP_DET);//58 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_START_DET);//59 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_GEN_CALL);//60 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_ENABLE);//61 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_STATUS);//62 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_TXFLR);//63 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_RXFLR);//64 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_SDA_HOLD);//65 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_TX_ABRT_SOURCE);//66 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_SDA_SETUP);//67 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_ENABLE_STATUS);//68 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_FS_SPKLEN);//69 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_HS_SPKLEN);//70 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_SCL_STUCK_TIMEOUT);//71 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_SDA_STUCK_TIMEOUT);//72 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_CLR_SCL_STUCK_DET);//73 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_DEVICE_ID);//74 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_COMP_PARAM_1);//75 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_COMP_VERSION);//76 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_I2C_COMP_TYPE);//77 + /* TX TPH */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_TPH_TDESC);//78 + /* RX TPH */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_TPH_RDESC);//79 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_TPH_RHDR);//80 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_CFG_TPH_RPL);//81 + + /* TDMA */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_CTL);//82 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_VF_TE(0));//83 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_VF_TE(1));//84 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_PB_THRE(i));//85-92 + } + for (i = 0; i < 4; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_LLQ(i));//93-96 + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_ETYPE_LB_L);//97 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_ETYPE_LB_H);//98 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_ETYPE_AS_L);//99 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_ETYPE_AS_H);//100 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_MAC_AS_L);//101 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_MAC_AS_H);//102 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_VLAN_AS_L);//103 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_VLAN_AS_H);//104 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_TCP_FLG_L);//105 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_TCP_FLG_H);//106 + for (i = 0; i < 64; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_VLAN_INS(i));//107-234 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_ETAG_INS(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_PBWARB_CTL);//235 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_MMW);//236 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_PBWARB_CFG(i));//237-244 + } + for (i = 0; i < 128; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_VM_CREDIT(i));//245-372 + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_FC_EOF);//373 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDM_FC_SOF);//374 + + /* RDMA */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_ARB_CTL);//375 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_VF_RE(0));//376 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_VF_RE(1));//377 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_RSC_CTL);//378 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_ARB_CFG(i));//379-386 + } + for (i = 0; i < 4; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_PF_QDE(i));//387-394 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDM_PF_HIDE(i)); + } + + /* RDB */ + /*flow control */ + for (i = 0; i < 4; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RFCV(i));//395-398 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RFCL(i));//399-414 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RFCH(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RFCRT);//415 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RFCC);//416 + /* receive packet buffer */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_PB_CTL);//417 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_PB_WRAP);//418 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_UP2TC);//419 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_PB_SZ(i));//420-435 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_MPCNT(i)); + } + /* lli interrupt */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_LLI_THRE);//436 + /* ring assignment */ + for (i = 0; i < 64; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_PL_CFG(i));//437-500 + } + for (i = 0; i < 32; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RSSTBL(i));//501-532 + } + for (i = 0; i < 10; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RSSRK(i));//533-542 + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RSS_TC);//543 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_RA_CTL);//544 + for (i = 0; i < 128; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_5T_SA(i));//545-1184 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_5T_DA(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_5T_SDP(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_5T_CTL0(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_5T_CTL1(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_SYN_CLS);//1185 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_ETYPE_CLS(i));//1186-1193 + } + /* fcoe redirection table */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FCRE_CTL);//1194 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FCRE_TBL(i));//1195-1202 + } + /*flow director */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_CTL);//1203 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_HKEY);//1204 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_SKEY);//1205 + for (i = 0; i < 16; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_FLEX_CFG(i));//1206-1221 + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_FREE);//1222 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_LEN);//1223 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_USE_ST);//1224 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_FAIL_ST);//1225 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_MATCH);//1226 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_MISS);//1227 + for (i = 0; i < 3; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_IP6(i));//1228-1230 + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_SA);//1231 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_DA);//1232 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_PORT);//1233 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_FLEX);//1234 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_HASH);//1235 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_CMD);//1236 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_DA4_MSK);//1237 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_SA4_MSK);//1238 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_TCP_MSK);//1239 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_UDP_MSK);//1240 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_SCTP_MSK);//1241 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_IP6_MSK);//1242 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RDB_FDIR_OTHER_MSK);//1243 + + /* PSR */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_CTL);//1244 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VLAN_CTL);//1245 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VM_CTL);//1246 + for (i = 0; i < 64; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VM_L2CTL(i));//1247-1310 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_ETYPE_SWC(i));//1311-1318 + } + for (i = 0; i < 128; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MC_TBL(i));//1319-1702 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_UC_TBL(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VLAN_TBL(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MAC_SWC_AD_L);//1703 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MAC_SWC_AD_H);//1704 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MAC_SWC_VM_L);//1705 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MAC_SWC_VM_H);//1706 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MAC_SWC_IDX);//1707 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VLAN_SWC);//1708 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VLAN_SWC_VM_L);//1709 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VLAN_SWC_VM_H);//1710 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_VLAN_SWC_IDX);//1711 + for (i = 0; i < 4; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MR_CTL(i));//1712-1731 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MR_VLAN_L(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MR_VLAN_H(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MR_VM_L(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_MR_VM_H(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_1588_CTL);//1732 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_1588_STMPL);//1733 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_1588_STMPH);//1734 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_1588_ATTRL);//1735 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_1588_ATTRH);//1736 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_1588_MSGTYPE);//1737 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_WKUP_CTL);//1738 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_WKUP_IPV);//1739 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_LAN_FLEX_CTL);//1740 + for (i = 0; i < 4; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_WKUP_IP4TBL(i));//1741-1748 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_WKUP_IP6TBL(i)); + } + for (i = 0; i < 16; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_LAN_FLEX_DW_L(i));//1749-1796 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_LAN_FLEX_DW_H(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_LAN_FLEX_MSK(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PSR_LAN_FLEX_CTL);//1797 + + /* TDB */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDB_RFCS);//1798 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDB_PB_SZ(0));//1799 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDB_UP2TC);//1800 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDB_PBRARB_CTL);//1801 + for (i = 0; i < 8; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDB_PBRARB_CFG(i));//1802-1809 + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TDB_MNG_TC);//1810 + + /* tsec */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_CTL);//1811 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_ST);//1812 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_BUF_AF);//1813 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_BUF_AE);//1814 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_MIN_IFG);//1815 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_CTL);//1816 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_STMPL);//1817 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_STMPH);//1818 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_SYSTIML);//1819 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_SYSTIMH);//1820 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_INC);//1821 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_ADJL);//1822 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_TSC_1588_ADJH);//1823 + + /* RSEC */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RSC_CTL);//1824 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_RSC_ST);//1825 + + /* BAR register */ + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_MISC_IC);//1826 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_MISC_ICS);//1827 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_MISC_IEN);//1828 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_GPIE);//1829 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IC(0));//1830 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IC(1));//1831 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_ICS(0));//1832 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_ICS(1));//1833 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IMS(0));//1834 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IMS(1));//1835 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IMC(0));//1836 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IMC(1));//1837 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_ISB_ADDR_L);//1838 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_ISB_ADDR_H);//1839 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_ITRSEL);//1840 + for (i = 0; i < 64; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_ITR(i));//1841-1968 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_IVAR(i)); + } + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_MISC_IVAR);//1969 + for (i = 0; i < 128; i++) { + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_RR_BAL(i));//1970-3249 + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_RR_BAH(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_RR_WP(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_RR_RP(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_RR_CFG(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_TR_BAL(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_TR_BAH(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_TR_WP(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_TR_RP(i)); + regs_buff[id++] = TXGBE_R32_Q(hw, TXGBE_PX_TR_CFG(i)); + } +} + +static int txgbe_get_eeprom_len(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + return adapter->hw.eeprom.word_size * 2; +} + +static int txgbe_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u16 *eeprom_buff; + int first_word, last_word, eeprom_len; + int ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EINVAL; + + eeprom->magic = hw->vendor_id | (hw->device_id << 16); + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + eeprom_len = last_word - first_word + 1; + + eeprom_buff = kmalloc(sizeof(u16) * eeprom_len, GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + ret_val = TCALL(hw, eeprom.ops.read_buffer, first_word, eeprom_len, + eeprom_buff); + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < eeprom_len; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); + kfree(eeprom_buff); + + return ret_val; +} + +static int txgbe_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u16 *eeprom_buff; + void *ptr; + int max_len, first_word, last_word, ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EINVAL; + + if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) + return -EINVAL; + + max_len = hw->eeprom.word_size * 2; + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + eeprom_buff = kmalloc(max_len, GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + ptr = eeprom_buff; + + if (eeprom->offset & 1) { + /* + * need read/modify/write of first changed EEPROM word + * only the second byte of the word is being modified + */ + ret_val = TCALL(hw, eeprom.ops.read, first_word, + &eeprom_buff[0]); + if (ret_val) + goto err; + + ptr++; + } + if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) { + /* + * need read/modify/write of last changed EEPROM word + * only the first byte of the word is being modified + */ + ret_val = TCALL(hw, eeprom.ops.read, last_word, + &eeprom_buff[last_word - first_word]); + if (ret_val) + goto err; + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(ptr, bytes, eeprom->len); + + for (i = 0; i < last_word - first_word + 1; i++) + cpu_to_le16s(&eeprom_buff[i]); + + ret_val = TCALL(hw, eeprom.ops.write_buffer, first_word, + last_word - first_word + 1, + eeprom_buff); + + /* Update the checksum */ + if (ret_val == 0) + TCALL(hw, eeprom.ops.update_checksum); + +err: + kfree(eeprom_buff); + return ret_val; +} + +static void txgbe_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + strncpy(drvinfo->driver, txgbe_driver_name, + sizeof(drvinfo->driver) - 1); + strncpy(drvinfo->version, txgbe_driver_version, + sizeof(drvinfo->version) - 1); + strncpy(drvinfo->fw_version, adapter->eeprom_id, + sizeof(drvinfo->fw_version)); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), + sizeof(drvinfo->bus_info) - 1); + if (adapter->num_tx_queues <= TXGBE_NUM_RX_QUEUES) { + drvinfo->n_stats = TXGBE_STATS_LEN - + (TXGBE_NUM_RX_QUEUES - adapter->num_tx_queues)* + (sizeof(struct txgbe_queue_stats) / sizeof(u64))*2; + } else { + drvinfo->n_stats = TXGBE_STATS_LEN; + } + drvinfo->testinfo_len = TXGBE_TEST_LEN; + drvinfo->regdump_len = txgbe_get_regs_len(netdev); +} + +static void txgbe_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + ring->rx_max_pending = TXGBE_MAX_RXD; + ring->tx_max_pending = TXGBE_MAX_TXD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = adapter->rx_ring_count; + ring->tx_pending = adapter->tx_ring_count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} + +static int txgbe_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_ring *temp_ring; + int i, err = 0; + u32 new_rx_count, new_tx_count; + + if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) + return -EINVAL; + + new_tx_count = clamp_t(u32, ring->tx_pending, + TXGBE_MIN_TXD, TXGBE_MAX_TXD); + new_tx_count = ALIGN(new_tx_count, TXGBE_REQ_TX_DESCRIPTOR_MULTIPLE); + + new_rx_count = clamp_t(u32, ring->rx_pending, + TXGBE_MIN_RXD, TXGBE_MAX_RXD); + new_rx_count = ALIGN(new_rx_count, TXGBE_REQ_RX_DESCRIPTOR_MULTIPLE); + + if ((new_tx_count == adapter->tx_ring_count) && + (new_rx_count == adapter->rx_ring_count)) { + /* nothing to do */ + return 0; + } + + while (test_and_set_bit(__TXGBE_RESETTING, &adapter->state)) + usleep_range(1000, 2000); + + if (!netif_running(adapter->netdev)) { + for (i = 0; i < adapter->num_tx_queues; i++) + adapter->tx_ring[i]->count = new_tx_count; + for (i = 0; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i]->count = new_rx_count; + adapter->tx_ring_count = new_tx_count; + adapter->rx_ring_count = new_rx_count; + goto clear_reset; + } + + /* allocate temporary buffer to store rings in */ + i = max_t(int, adapter->num_tx_queues, adapter->num_rx_queues); + temp_ring = vmalloc(i * sizeof(struct txgbe_ring)); + + if (!temp_ring) { + err = -ENOMEM; + goto clear_reset; + } + + txgbe_down(adapter); + + /* + * Setup new Tx resources and free the old Tx resources in that order. + * We can then assign the new resources to the rings via a memcpy. + * The advantage to this approach is that we are guaranteed to still + * have resources even in the case of an allocation failure. + */ + if (new_tx_count != adapter->tx_ring_count) { + for (i = 0; i < adapter->num_tx_queues; i++) { + memcpy(&temp_ring[i], adapter->tx_ring[i], + sizeof(struct txgbe_ring)); + + temp_ring[i].count = new_tx_count; + err = txgbe_setup_tx_resources(&temp_ring[i]); + if (err) { + while (i) { + i--; + txgbe_free_tx_resources(&temp_ring[i]); + } + goto err_setup; + } + } + + for (i = 0; i < adapter->num_tx_queues; i++) { + txgbe_free_tx_resources(adapter->tx_ring[i]); + + memcpy(adapter->tx_ring[i], &temp_ring[i], + sizeof(struct txgbe_ring)); + } + + adapter->tx_ring_count = new_tx_count; + } + + /* Repeat the process for the Rx rings if needed */ + if (new_rx_count != adapter->rx_ring_count) { + for (i = 0; i < adapter->num_rx_queues; i++) { + memcpy(&temp_ring[i], adapter->rx_ring[i], + sizeof(struct txgbe_ring)); + + temp_ring[i].count = new_rx_count; + err = txgbe_setup_rx_resources(&temp_ring[i]); + if (err) { + while (i) { + i--; + txgbe_free_rx_resources(&temp_ring[i]); + } + goto err_setup; + } + } + + for (i = 0; i < adapter->num_rx_queues; i++) { + txgbe_free_rx_resources(adapter->rx_ring[i]); + memcpy(adapter->rx_ring[i], &temp_ring[i], + sizeof(struct txgbe_ring)); + } + + adapter->rx_ring_count = new_rx_count; + } + +err_setup: + txgbe_up(adapter); + vfree(temp_ring); +clear_reset: + clear_bit(__TXGBE_RESETTING, &adapter->state); + return err; +} + +static int txgbe_get_sset_count(struct net_device *netdev, int sset) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + switch (sset) { + case ETH_SS_TEST: + return TXGBE_TEST_LEN; + case ETH_SS_STATS: + if (adapter->num_tx_queues <= TXGBE_NUM_RX_QUEUES) { + return TXGBE_STATS_LEN - (TXGBE_NUM_RX_QUEUES - adapter->num_tx_queues) * + (sizeof(struct txgbe_queue_stats) / sizeof(u64)) * 2; + } else { + return TXGBE_STATS_LEN; + } + default: + return -EOPNOTSUPP; + } +} + +static void txgbe_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct rtnl_link_stats64 temp; + const struct rtnl_link_stats64 *net_stats; + + u64 *queue_stat; + int stat_count, k; + unsigned int start; + struct txgbe_ring *ring; + int i, j; + char *p; + + txgbe_update_stats(adapter); + net_stats = dev_get_stats(netdev, &temp); + + for (i = 0; i < TXGBE_NETDEV_STATS_LEN; i++) { + p = (char *)net_stats + txgbe_gstrings_net_stats[i].stat_offset; + data[i] = (txgbe_gstrings_net_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } + + for (j = 0; j < TXGBE_GLOBAL_STATS_LEN; j++, i++) { + p = (char *)adapter + txgbe_gstrings_stats[j].stat_offset; + data[i] = (txgbe_gstrings_stats[j].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } + + for (j = 0; j < adapter->num_tx_queues; j++) { + ring = adapter->tx_ring[j]; + if (!ring) { + data[i++] = 0; + data[i++] = 0; +#ifdef BP_EXTENDED_STATS + data[i++] = 0; + data[i++] = 0; + data[i++] = 0; +#endif + continue; + } + + do { + start = u64_stats_fetch_begin_irq(&ring->syncp); + data[i] = ring->stats.packets; + data[i+1] = ring->stats.bytes; + } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); + i += 2; + } + for (j = 0; j < adapter->num_rx_queues; j++) { + ring = adapter->rx_ring[j]; + if (!ring) { + data[i++] = 0; + data[i++] = 0; + continue; + } + + do { + start = u64_stats_fetch_begin_irq(&ring->syncp); + data[i] = ring->stats.packets; + data[i+1] = ring->stats.bytes; + } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); + i += 2; + } + for (j = 0; j < TXGBE_MAX_PACKET_BUFFERS; j++) { + data[i++] = adapter->stats.pxontxc[j]; + data[i++] = adapter->stats.pxofftxc[j]; + } + for (j = 0; j < TXGBE_MAX_PACKET_BUFFERS; j++) { + data[i++] = adapter->stats.pxonrxc[j]; + data[i++] = adapter->stats.pxoffrxc[j]; + } + + stat_count = sizeof(struct vf_stats) / sizeof(u64); + for (j = 0; j < adapter->num_vfs; j++) { + queue_stat = (u64 *)&adapter->vfinfo[j].vfstats; + for (k = 0; k < stat_count; k++) + data[i + k] = queue_stat[k]; + queue_stat = (u64 *)&adapter->vfinfo[j].saved_rst_vfstats; + for (k = 0; k < stat_count; k++) + data[i + k] += queue_stat[k]; + i += k; + } +} + +static void txgbe_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + char *p = (char *)data; + int i; + + switch (stringset) { + case ETH_SS_TEST: + memcpy(data, *txgbe_gstrings_test, + TXGBE_TEST_LEN * ETH_GSTRING_LEN); + break; + case ETH_SS_STATS: + for (i = 0; i < TXGBE_NETDEV_STATS_LEN; i++) { + memcpy(p, txgbe_gstrings_net_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < TXGBE_GLOBAL_STATS_LEN; i++) { + memcpy(p, txgbe_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < adapter->num_tx_queues; i++) { + sprintf(p, "tx_queue_%u_packets", i); + p += ETH_GSTRING_LEN; + sprintf(p, "tx_queue_%u_bytes", i); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < adapter->num_rx_queues; i++) { + sprintf(p, "rx_queue_%u_packets", i); + p += ETH_GSTRING_LEN; + sprintf(p, "rx_queue_%u_bytes", i); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < TXGBE_MAX_PACKET_BUFFERS; i++) { + sprintf(p, "tx_pb_%u_pxon", i); + p += ETH_GSTRING_LEN; + sprintf(p, "tx_pb_%u_pxoff", i); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < TXGBE_MAX_PACKET_BUFFERS; i++) { + sprintf(p, "rx_pb_%u_pxon", i); + p += ETH_GSTRING_LEN; + sprintf(p, "rx_pb_%u_pxoff", i); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < adapter->num_vfs; i++) { + sprintf(p, "VF %d Rx Packets", i); + p += ETH_GSTRING_LEN; + sprintf(p, "VF %d Rx Bytes", i); + p += ETH_GSTRING_LEN; + sprintf(p, "VF %d Tx Packets", i); + p += ETH_GSTRING_LEN; + sprintf(p, "VF %d Tx Bytes", i); + p += ETH_GSTRING_LEN; + sprintf(p, "VF %d MC Packets", i); + p += ETH_GSTRING_LEN; + } + /* BUG_ON(p - data != TXGBE_STATS_LEN * ETH_GSTRING_LEN); */ + break; + } +} + +static int txgbe_link_test(struct txgbe_adapter *adapter, u64 *data) +{ + struct txgbe_hw *hw = &adapter->hw; + bool link_up; + u32 link_speed = 0; + + if (TXGBE_REMOVED(hw->hw_addr)) { + *data = 1; + return 1; + } + *data = 0; + TCALL(hw, mac.ops.check_link, &link_speed, &link_up, true); + if (link_up) + return *data; + else + *data = 1; + return *data; +} + +/* ethtool register test data */ +struct txgbe_reg_test { + u32 reg; + u8 array_len; + u8 test_type; + u32 mask; + u32 write; +}; + +/* In the hardware, registers are laid out either singly, in arrays + * spaced 0x40 bytes apart, or in contiguous tables. We assume + * most tests take place on arrays or single registers (handled + * as a single-element array) and special-case the tables. + * Table tests are always pattern tests. + * + * We also make provision for some required setup steps by specifying + * registers to be written without any read-back testing. + */ + +#define PATTERN_TEST 1 +#define SET_READ_TEST 2 +#define WRITE_NO_TEST 3 +#define TABLE32_TEST 4 +#define TABLE64_TEST_LO 5 +#define TABLE64_TEST_HI 6 + +/* default sapphire register test */ +static struct txgbe_reg_test reg_test_sapphire[] = { + { TXGBE_RDB_RFCL(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 }, + { TXGBE_RDB_RFCH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 }, + { TXGBE_PSR_VLAN_CTL, 1, PATTERN_TEST, 0x00000000, 0x00000000 }, + { TXGBE_PX_RR_BAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 }, + { TXGBE_PX_RR_BAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { TXGBE_PX_RR_CFG(0), 4, WRITE_NO_TEST, 0, TXGBE_PX_RR_CFG_RR_EN }, + { TXGBE_RDB_RFCH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 }, + { TXGBE_RDB_RFCV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { TXGBE_PX_TR_BAL(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { TXGBE_PX_TR_BAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { TXGBE_RDB_PB_CTL, 1, SET_READ_TEST, 0x00000001, 0x00000001 }, + { TXGBE_PSR_MC_TBL(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { .reg = 0 } +}; + +static bool reg_pattern_test(struct txgbe_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + u32 pat, val, before; + static const u32 test_pattern[] = { + 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF + }; + + if (TXGBE_REMOVED(adapter->hw.hw_addr)) { + *data = 1; + return true; + } + for (pat = 0; pat < ARRAY_SIZE(test_pattern); pat++) { + before = rd32(&adapter->hw, reg); + wr32(&adapter->hw, reg, test_pattern[pat] & write); + val = rd32(&adapter->hw, reg); + if (val != (test_pattern[pat] & write & mask)) { + e_err(drv, + "pattern test reg %04X failed: got 0x%08X " + "expected 0x%08X\n", + reg, val, test_pattern[pat] & write & mask); + *data = reg; + wr32(&adapter->hw, reg, before); + return true; + } + wr32(&adapter->hw, reg, before); + } + return false; +} + +static bool reg_set_and_check(struct txgbe_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + u32 val, before; + + if (TXGBE_REMOVED(adapter->hw.hw_addr)) { + *data = 1; + return true; + } + before = rd32(&adapter->hw, reg); + wr32(&adapter->hw, reg, write & mask); + val = rd32(&adapter->hw, reg); + if ((write & mask) != (val & mask)) { + e_err(drv, + "set/check reg %04X test failed: got 0x%08X expected" + "0x%08X\n", + reg, (val & mask), (write & mask)); + *data = reg; + wr32(&adapter->hw, reg, before); + return true; + } + wr32(&adapter->hw, reg, before); + return false; +} + +static bool txgbe_reg_test(struct txgbe_adapter *adapter, u64 *data) +{ + struct txgbe_reg_test *test; + struct txgbe_hw *hw = &adapter->hw; + u32 i; + + if (TXGBE_REMOVED(hw->hw_addr)) { + e_err(drv, "Adapter removed - register test blocked\n"); + *data = 1; + return true; + } + + test = reg_test_sapphire; + + /* + * Perform the remainder of the register test, looping through + * the test table until we either fail or reach the null entry. + */ + while (test->reg) { + for (i = 0; i < test->array_len; i++) { + bool b = false; + + switch (test->test_type) { + case PATTERN_TEST: + b = reg_pattern_test(adapter, data, + test->reg + (i * 0x40), + test->mask, + test->write); + break; + case SET_READ_TEST: + b = reg_set_and_check(adapter, data, + test->reg + (i * 0x40), + test->mask, + test->write); + break; + case WRITE_NO_TEST: + wr32(hw, test->reg + (i * 0x40), + test->write); + break; + case TABLE32_TEST: + b = reg_pattern_test(adapter, data, + test->reg + (i * 4), + test->mask, + test->write); + break; + case TABLE64_TEST_LO: + b = reg_pattern_test(adapter, data, + test->reg + (i * 8), + test->mask, + test->write); + break; + case TABLE64_TEST_HI: + b = reg_pattern_test(adapter, data, + (test->reg + 4) + (i * 8), + test->mask, + test->write); + break; + } + if (b) + return true; + } + test++; + } + + *data = 0; + return false; +} + +static bool txgbe_eeprom_test(struct txgbe_adapter *adapter, u64 *data) +{ + struct txgbe_hw *hw = &adapter->hw; + + if (TCALL(hw, eeprom.ops.validate_checksum, NULL)) { + *data = 1; + return true; + } else { + *data = 0; + return false; + } +} + +static irqreturn_t txgbe_test_intr(int __always_unused irq, void *data) +{ + struct net_device *netdev = (struct net_device *) data; + struct txgbe_adapter *adapter = netdev_priv(netdev); + u64 icr; + + /* get misc interrupt, as cannot get ring interrupt status */ + icr = txgbe_misc_isb(adapter, TXGBE_ISB_VEC1); + icr <<= 32; + icr |= txgbe_misc_isb(adapter, TXGBE_ISB_VEC0); + + adapter->test_icr = icr; + + return IRQ_HANDLED; +} + +static int txgbe_intr_test(struct txgbe_adapter *adapter, u64 *data) +{ + struct net_device *netdev = adapter->netdev; + u64 mask; + u32 i = 0, shared_int = true; + u32 irq = adapter->pdev->irq; + + if (TXGBE_REMOVED(adapter->hw.hw_addr)) { + *data = 1; + return -1; + } + *data = 0; + + /* Hook up test interrupt handler just for this test */ + if (adapter->msix_entries) { + /* NOTE: we don't test MSI-X interrupts here, yet */ + return 0; + } else if (adapter->flags & TXGBE_FLAG_MSI_ENABLED) { + shared_int = false; + if (request_irq(irq, &txgbe_test_intr, 0, netdev->name, + netdev)) { + *data = 1; + return -1; + } + } else if (!request_irq(irq, &txgbe_test_intr, IRQF_PROBE_SHARED, + netdev->name, netdev)) { + shared_int = false; + } else if (request_irq(irq, &txgbe_test_intr, IRQF_SHARED, + netdev->name, netdev)) { + *data = 1; + return -1; + } + e_info(hw, "testing %s interrupt\n", + (shared_int ? "shared" : "unshared")); + + /* Disable all the interrupts */ + txgbe_irq_disable(adapter); + TXGBE_WRITE_FLUSH(&adapter->hw); + usleep_range(10000, 20000); + + /* Test each interrupt */ + for (; i < 1; i++) { + /* Interrupt to test */ + mask = 1ULL << i; + + if (!shared_int) { + /* + * Disable the interrupts to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + txgbe_intr_disable(&adapter->hw, ~mask); + txgbe_intr_trigger(&adapter->hw, mask); + TXGBE_WRITE_FLUSH(&adapter->hw); + usleep_range(10000, 20000); + + if (adapter->test_icr & mask) { + *data = 3; + break; + } + } + + /* + * Enable the interrupt to be reported in the cause + * register and then force the same interrupt and see + * if one gets posted. If an interrupt was not posted + * to the bus, the test failed. + */ + adapter->test_icr = 0; + txgbe_intr_disable(&adapter->hw, TXGBE_INTR_ALL); + txgbe_intr_trigger(&adapter->hw, mask); + TXGBE_WRITE_FLUSH(&adapter->hw); + usleep_range(10000, 20000); + + if (!(adapter->test_icr & mask)) { + *data = 4; + break; + } + } + + /* Disable all the interrupts */ + txgbe_intr_disable(&adapter->hw, TXGBE_INTR_ALL); + TXGBE_WRITE_FLUSH(&adapter->hw); + usleep_range(10000, 20000); + + /* Unhook test interrupt handler */ + free_irq(irq, netdev); + + return *data; +} + +static void txgbe_free_desc_rings(struct txgbe_adapter *adapter) +{ + struct txgbe_ring *tx_ring = &adapter->test_tx_ring; + struct txgbe_ring *rx_ring = &adapter->test_rx_ring; + struct txgbe_hw *hw = &adapter->hw; + + /* shut down the DMA engines now so they can be reinitialized later */ + + /* first Rx */ + TCALL(hw, mac.ops.disable_rx); + txgbe_disable_rx_queue(adapter, rx_ring); + + /* now Tx */ + wr32(hw, TXGBE_PX_TR_CFG(tx_ring->reg_idx), 0); + + wr32m(hw, TXGBE_TDM_CTL, TXGBE_TDM_CTL_TE, 0); + + txgbe_reset(adapter); + + txgbe_free_tx_resources(&adapter->test_tx_ring); + txgbe_free_rx_resources(&adapter->test_rx_ring); +} + +static int txgbe_setup_desc_rings(struct txgbe_adapter *adapter) +{ + struct txgbe_ring *tx_ring = &adapter->test_tx_ring; + struct txgbe_ring *rx_ring = &adapter->test_rx_ring; + struct txgbe_hw *hw = &adapter->hw; + int ret_val; + int err; + + TCALL(hw, mac.ops.setup_rxpba, 0, 0, PBA_STRATEGY_EQUAL); + + /* Setup Tx descriptor ring and Tx buffers */ + tx_ring->count = TXGBE_DEFAULT_TXD; + tx_ring->queue_index = 0; + tx_ring->dev = pci_dev_to_dev(adapter->pdev); + tx_ring->netdev = adapter->netdev; + tx_ring->reg_idx = adapter->tx_ring[0]->reg_idx; + + err = txgbe_setup_tx_resources(tx_ring); + if (err) + return 1; + + wr32m(&adapter->hw, TXGBE_TDM_CTL, + TXGBE_TDM_CTL_TE, TXGBE_TDM_CTL_TE); + + txgbe_configure_tx_ring(adapter, tx_ring); + + /* enable mac transmitter */ + wr32m(hw, TXGBE_MAC_TX_CFG, + TXGBE_MAC_TX_CFG_TE | TXGBE_MAC_TX_CFG_SPEED_MASK, + TXGBE_MAC_TX_CFG_TE | TXGBE_MAC_TX_CFG_SPEED_10G); + + /* Setup Rx Descriptor ring and Rx buffers */ + rx_ring->count = TXGBE_DEFAULT_RXD; + rx_ring->queue_index = 0; + rx_ring->dev = pci_dev_to_dev(adapter->pdev); + rx_ring->netdev = adapter->netdev; + rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx; + + err = txgbe_setup_rx_resources(rx_ring); + if (err) { + ret_val = 4; + goto err_nomem; + } + + TCALL(hw, mac.ops.disable_rx); + + txgbe_configure_rx_ring(adapter, rx_ring); + + TCALL(hw, mac.ops.enable_rx); + + return 0; + +err_nomem: + txgbe_free_desc_rings(adapter); + return ret_val; +} + +static int txgbe_setup_config(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 reg_data; + + /* Setup traffic loopback */ + reg_data = rd32(hw, TXGBE_PSR_CTL); + reg_data |= TXGBE_PSR_CTL_BAM | TXGBE_PSR_CTL_UPE | + TXGBE_PSR_CTL_MPE | TXGBE_PSR_CTL_TPE; + wr32(hw, TXGBE_PSR_CTL, reg_data); + + wr32(hw, TXGBE_RSC_CTL, + (rd32(hw, TXGBE_RSC_CTL) | + TXGBE_RSC_CTL_SAVE_MAC_ERR) & ~TXGBE_RSC_CTL_SECRX_DIS); + + wr32(hw, TXGBE_RSC_LSEC_CTL, 0x4); + + wr32(hw, TXGBE_PSR_VLAN_CTL, + rd32(hw, TXGBE_PSR_VLAN_CTL) & + ~TXGBE_PSR_VLAN_CTL_VFE); + + wr32m(&adapter->hw, TXGBE_MAC_RX_CFG, + TXGBE_MAC_RX_CFG_LM, ~TXGBE_MAC_RX_CFG_LM); + wr32m(&adapter->hw, TXGBE_CFG_PORT_CTL, + TXGBE_CFG_PORT_CTL_FORCE_LKUP, ~TXGBE_CFG_PORT_CTL_FORCE_LKUP); + + + TXGBE_WRITE_FLUSH(hw); + usleep_range(10000, 20000); + + return 0; +} + +static int txgbe_setup_phy_loopback_test(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 value; + /* setup phy loopback */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_MISC_CTL0); + value |= TXGBE_PHY_MISC_CTL0_TX2RX_LB_EN_0 | + TXGBE_PHY_MISC_CTL0_TX2RX_LB_EN_3_1; + + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, value); + + value = txgbe_rd32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1); + txgbe_wr32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1, + value | TXGBE_SR_PMA_MMD_CTL1_LB_EN); + return 0; +} + +static void txgbe_phy_loopback_cleanup(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 value; + + value = txgbe_rd32_epcs(hw, TXGBE_PHY_MISC_CTL0); + value &= ~(TXGBE_PHY_MISC_CTL0_TX2RX_LB_EN_0 | + TXGBE_PHY_MISC_CTL0_TX2RX_LB_EN_3_1); + + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, value); + value = txgbe_rd32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1); + txgbe_wr32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1, + value & ~TXGBE_SR_PMA_MMD_CTL1_LB_EN); +} + + +static void txgbe_create_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + memset(skb->data, 0xFF, frame_size); + frame_size >>= 1; + memset(&skb->data[frame_size], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size + 10], 0xBE, 1); + memset(&skb->data[frame_size + 12], 0xAF, 1); +} + +static bool txgbe_check_lbtest_frame(struct txgbe_rx_buffer *rx_buffer, + unsigned int frame_size) +{ + unsigned char *data; + bool match = true; + + frame_size >>= 1; + data = kmap(rx_buffer->page) + rx_buffer->page_offset; + + if (data[3] != 0xFF || + data[frame_size + 10] != 0xBE || + data[frame_size + 12] != 0xAF) + match = false; + + kunmap(rx_buffer->page); + return match; +} + +static u16 txgbe_clean_test_rings(struct txgbe_ring *rx_ring, + struct txgbe_ring *tx_ring, + unsigned int size) +{ + union txgbe_rx_desc *rx_desc; + struct txgbe_rx_buffer *rx_buffer; + struct txgbe_tx_buffer *tx_buffer; + const int bufsz = txgbe_rx_bufsz(rx_ring); + u16 rx_ntc, tx_ntc, count = 0; + + /* initialize next to clean and descriptor values */ + rx_ntc = rx_ring->next_to_clean; + tx_ntc = tx_ring->next_to_clean; + rx_desc = TXGBE_RX_DESC(rx_ring, rx_ntc); + + while (txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_DD)) { + /* unmap buffer on Tx side */ + tx_buffer = &tx_ring->tx_buffer_info[tx_ntc]; + txgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer); + + /* check Rx buffer */ + rx_buffer = &rx_ring->rx_buffer_info[rx_ntc]; + + /* sync Rx buffer for CPU read */ + dma_sync_single_for_cpu(rx_ring->dev, + rx_buffer->page_dma, + bufsz, + DMA_FROM_DEVICE); + + /* verify contents of skb */ + if (txgbe_check_lbtest_frame(rx_buffer, size)) + count++; + + /* sync Rx buffer for device write */ + dma_sync_single_for_device(rx_ring->dev, + rx_buffer->page_dma, + bufsz, + DMA_FROM_DEVICE); + + /* increment Rx/Tx next to clean counters */ + rx_ntc++; + if (rx_ntc == rx_ring->count) + rx_ntc = 0; + tx_ntc++; + if (tx_ntc == tx_ring->count) + tx_ntc = 0; + + /* fetch next descriptor */ + rx_desc = TXGBE_RX_DESC(rx_ring, rx_ntc); + } + + /* re-map buffers to ring, store next to clean values */ + txgbe_alloc_rx_buffers(rx_ring, count); + rx_ring->next_to_clean = rx_ntc; + tx_ring->next_to_clean = tx_ntc; + + return count; +} + +static int txgbe_run_loopback_test(struct txgbe_adapter *adapter) +{ + struct txgbe_ring *tx_ring = &adapter->test_tx_ring; + struct txgbe_ring *rx_ring = &adapter->test_rx_ring; + int i, j, lc, good_cnt, ret_val = 0; + unsigned int size = 1024; + netdev_tx_t tx_ret_val; + struct sk_buff *skb; + u32 flags_orig = adapter->flags; + + + /* DCB can modify the frames on Tx */ + adapter->flags &= ~TXGBE_FLAG_DCB_ENABLED; + + /* allocate test skb */ + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) + return 11; + + /* place data into test skb */ + txgbe_create_lbtest_frame(skb, size); + skb_put(skb, size); + + /* + * Calculate the loop count based on the largest descriptor ring + * The idea is to wrap the largest ring a number of times using 64 + * send/receive pairs during each loop + */ + + if (rx_ring->count <= tx_ring->count) + lc = ((tx_ring->count / 64) * 2) + 1; + else + lc = ((rx_ring->count / 64) * 2) + 1; + + for (j = 0; j <= lc; j++) { + /* reset count of good packets */ + good_cnt = 0; + + /* place 64 packets on the transmit queue*/ + for (i = 0; i < 64; i++) { + skb_get(skb); + tx_ret_val = txgbe_xmit_frame_ring(skb, + adapter, + tx_ring); + if (tx_ret_val == NETDEV_TX_OK) + good_cnt++; + } + + if (good_cnt != 64) { + ret_val = 12; + break; + } + + /* allow 200 milliseconds for packets to go from Tx to Rx */ + msleep(200); + + good_cnt = txgbe_clean_test_rings(rx_ring, tx_ring, size); + if (j == 0) + continue; + else if (good_cnt != 64) { + ret_val = 13; + break; + } + } + + /* free the original skb */ + kfree_skb(skb); + adapter->flags = flags_orig; + + return ret_val; +} + +static int txgbe_loopback_test(struct txgbe_adapter *adapter, u64 *data) +{ + *data = txgbe_setup_desc_rings(adapter); + if (*data) + goto out; + + *data = txgbe_setup_config(adapter); + if (*data) + goto err_loopback; + + *data = txgbe_setup_phy_loopback_test(adapter); + if (*data) + goto err_loopback; + *data = txgbe_run_loopback_test(adapter); + if (*data) + e_info(hw, "phy loopback testing failed\n"); + txgbe_phy_loopback_cleanup(adapter); + +err_loopback: + txgbe_free_desc_rings(adapter); +out: + return *data; +} + +static void txgbe_diag_test(struct net_device *netdev, + struct ethtool_test *eth_test, u64 *data) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + bool if_running = netif_running(netdev); + struct txgbe_hw *hw = &adapter->hw; + + if (TXGBE_REMOVED(hw->hw_addr)) { + e_err(hw, "Adapter removed - test blocked\n"); + data[0] = 1; + data[1] = 1; + data[2] = 1; + data[3] = 1; + data[4] = 1; + eth_test->flags |= ETH_TEST_FL_FAILED; + return; + } + + set_bit(__TXGBE_TESTING, &adapter->state); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) { + int i; + for (i = 0; i < adapter->num_vfs; i++) { + if (adapter->vfinfo[i].clear_to_send) { + e_warn(drv, "Please take active VFS " + "offline and restart the " + "adapter before running NIC " + "diagnostics\n"); + data[0] = 1; + data[1] = 1; + data[2] = 1; + data[3] = 1; + data[4] = 1; + eth_test->flags |= ETH_TEST_FL_FAILED; + clear_bit(__TXGBE_TESTING, + &adapter->state); + goto skip_ol_tests; + } + } + } + + /* Offline tests */ + e_info(hw, "offline testing starting\n"); + + /* Link test performed before hardware reset so autoneg doesn't + * interfere with test result */ + if (txgbe_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (if_running) + /* indicate we're in test mode */ + txgbe_close(netdev); + else + txgbe_reset(adapter); + + e_info(hw, "register testing starting\n"); + if (txgbe_reg_test(adapter, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + txgbe_reset(adapter); + e_info(hw, "eeprom testing starting\n"); + if (txgbe_eeprom_test(adapter, &data[1])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + txgbe_reset(adapter); + e_info(hw, "interrupt testing starting\n"); + if (txgbe_intr_test(adapter, &data[2])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (!(((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) || + ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP))) { + /* If SRIOV or VMDq is enabled then skip MAC + * loopback diagnostic. */ + if (adapter->flags & (TXGBE_FLAG_SRIOV_ENABLED | + TXGBE_FLAG_VMDQ_ENABLED)) { + e_info(hw, "skip MAC loopback diagnostic in VT mode\n"); + data[3] = 0; + goto skip_loopback; + } + + txgbe_reset(adapter); + e_info(hw, "loopback testing starting\n"); + if (txgbe_loopback_test(adapter, &data[3])) + eth_test->flags |= ETH_TEST_FL_FAILED; + } + + data[3] = 0; +skip_loopback: + txgbe_reset(adapter); + + /* clear testing bit and return adapter to previous state */ + clear_bit(__TXGBE_TESTING, &adapter->state); + if (if_running) + txgbe_open(netdev); + else + TCALL(hw, mac.ops.disable_tx_laser); + } else { + e_info(hw, "online testing starting\n"); + + /* Online tests */ + if (txgbe_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* Offline tests aren't run; pass by default */ + data[0] = 0; + data[1] = 0; + data[2] = 0; + data[3] = 0; + + clear_bit(__TXGBE_TESTING, &adapter->state); + } + +skip_ol_tests: + msleep_interruptible(4 * 1000); +} + + +static int txgbe_wol_exclusion(struct txgbe_adapter *adapter, + struct ethtool_wolinfo *wol) +{ + int retval = 0; + + /* WOL not supported for all devices */ + if (!txgbe_wol_supported(adapter)) { + retval = 1; + wol->supported = 0; + } + + return retval; +} + +static void txgbe_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + + if (txgbe_wol_exclusion(adapter, wol) || + !device_can_wakeup(pci_dev_to_dev(adapter->pdev))) + return; + if ((hw->subsystem_device_id & TXGBE_WOL_MASK) != TXGBE_WOL_SUP) + return; + + if (adapter->wol & TXGBE_PSR_WKUP_CTL_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & TXGBE_PSR_WKUP_CTL_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & TXGBE_PSR_WKUP_CTL_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & TXGBE_PSR_WKUP_CTL_MAG) + wol->wolopts |= WAKE_MAGIC; +} + +static int txgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + + if (txgbe_wol_exclusion(adapter, wol)) + return wol->wolopts ? -EOPNOTSUPP : 0; + if ((hw->subsystem_device_id & TXGBE_WOL_MASK) != TXGBE_WOL_SUP) + return -EOPNOTSUPP; + + adapter->wol = 0; + + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= TXGBE_PSR_WKUP_CTL_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= TXGBE_PSR_WKUP_CTL_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= TXGBE_PSR_WKUP_CTL_BC; + if (wol->wolopts & WAKE_MAGIC) + adapter->wol |= TXGBE_PSR_WKUP_CTL_MAG; + + hw->wol_enabled = !!(adapter->wol); + wr32(hw, TXGBE_PSR_WKUP_CTL, adapter->wol); + + device_set_wakeup_enable(pci_dev_to_dev(adapter->pdev), adapter->wol); + + return 0; +} + +static int txgbe_nway_reset(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + if (netif_running(netdev)) + txgbe_reinit_locked(adapter); + + return 0; +} + +static int txgbe_set_phys_id(struct net_device *netdev, + enum ethtool_phys_id_state state) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + + switch (state) { + case ETHTOOL_ID_ACTIVE: + adapter->led_reg = rd32(hw, TXGBE_CFG_LED_CTL); + return 2; + + case ETHTOOL_ID_ON: + TCALL(hw, mac.ops.led_on, TXGBE_LED_LINK_UP); + break; + + case ETHTOOL_ID_OFF: + TCALL(hw, mac.ops.led_off, TXGBE_LED_LINK_UP); + break; + + case ETHTOOL_ID_INACTIVE: + /* Restore LED settings */ + wr32(&adapter->hw, TXGBE_CFG_LED_CTL, + adapter->led_reg); + break; + } + + return 0; +} + +static int txgbe_get_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + ec->tx_max_coalesced_frames_irq = adapter->tx_work_limit; + /* only valid if in constant ITR mode */ + if (adapter->rx_itr_setting <= 1) + ec->rx_coalesce_usecs = adapter->rx_itr_setting; + else + ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; + + /* if in mixed tx/rx queues per vector mode, report only rx settings */ + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) + return 0; + + /* only valid if in constant ITR mode */ + if (adapter->tx_itr_setting <= 1) + ec->tx_coalesce_usecs = adapter->tx_itr_setting; + else + ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; + + return 0; +} + +/* + * this function must be called before setting the new value of + * rx_itr_setting + */ +static bool txgbe_update_rsc(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + /* nothing to do if LRO or RSC are not enabled */ + if (!(adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE) || + !(netdev->features & NETIF_F_LRO)) + return false; + + /* check the feature flag value and enable RSC if necessary */ + if (adapter->rx_itr_setting == 1 || + adapter->rx_itr_setting > TXGBE_MIN_RSC_ITR) { + if (!(adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED)) { + adapter->flags2 |= TXGBE_FLAG2_RSC_ENABLED; + e_info(probe, "rx-usecs value high enough " + "to re-enable RSC\n"); + return true; + } + /* if interrupt rate is too high then disable RSC */ + } else if (adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED) { + adapter->flags2 &= ~TXGBE_FLAG2_RSC_ENABLED; + e_info(probe, "rx-usecs set too low, disabling RSC\n"); + return true; + } + return false; +} + +static int txgbe_set_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_q_vector *q_vector; + int i; + u16 tx_itr_param, rx_itr_param; + u16 tx_itr_prev; + bool need_reset = false; + + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) { + /* reject Tx specific changes in case of mixed RxTx vectors */ + if (ec->tx_coalesce_usecs) + return -EINVAL; + tx_itr_prev = adapter->rx_itr_setting; + } else { + tx_itr_prev = adapter->tx_itr_setting; + } + + if (ec->tx_max_coalesced_frames_irq) + adapter->tx_work_limit = ec->tx_max_coalesced_frames_irq; + + if ((ec->rx_coalesce_usecs > (TXGBE_MAX_EITR >> 2)) || + (ec->tx_coalesce_usecs > (TXGBE_MAX_EITR >> 2))) + return -EINVAL; + + if (ec->rx_coalesce_usecs > 1) + adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; + else + adapter->rx_itr_setting = ec->rx_coalesce_usecs; + + if (adapter->rx_itr_setting == 1) + rx_itr_param = TXGBE_20K_ITR; + else + rx_itr_param = adapter->rx_itr_setting; + + if (ec->tx_coalesce_usecs > 1) + adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; + else + adapter->tx_itr_setting = ec->tx_coalesce_usecs; + + if (adapter->tx_itr_setting == 1) + tx_itr_param = TXGBE_12K_ITR; + else + tx_itr_param = adapter->tx_itr_setting; + + /* mixed Rx/Tx */ + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) + adapter->tx_itr_setting = adapter->rx_itr_setting; + + /* detect ITR changes that require update of TXDCTL.WTHRESH */ + if ((adapter->tx_itr_setting != 1) && + (adapter->tx_itr_setting < TXGBE_100K_ITR)) { + if ((tx_itr_prev == 1) || + (tx_itr_prev >= TXGBE_100K_ITR)) + need_reset = true; + } else { + if ((tx_itr_prev != 1) && + (tx_itr_prev < TXGBE_100K_ITR)) + need_reset = true; + } + + /* check the old value and enable RSC if necessary */ + need_reset |= txgbe_update_rsc(adapter); + + if (adapter->hw.mac.dmac_config.watchdog_timer && + (!adapter->rx_itr_setting && !adapter->tx_itr_setting)) { + e_info(probe, + "Disabling DMA coalescing because interrupt throttling " + "is disabled\n"); + adapter->hw.mac.dmac_config.watchdog_timer = 0; + TCALL(hw, mac.ops.dmac_config); + } + + for (i = 0; i < adapter->num_q_vectors; i++) { + q_vector = adapter->q_vector[i]; + q_vector->tx.work_limit = adapter->tx_work_limit; + q_vector->rx.work_limit = adapter->rx_work_limit; + if (q_vector->tx.count && !q_vector->rx.count) + /* tx only */ + q_vector->itr = tx_itr_param; + else + /* rx only or mixed */ + q_vector->itr = rx_itr_param; + txgbe_write_eitr(q_vector); + } + + /* + * do reset here at the end to make sure EITR==0 case is handled + * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings + * also locks in RSC enable/disable which requires reset + */ + if (need_reset) + txgbe_do_reset(netdev); + + return 0; +} + +static int txgbe_get_ethtool_fdir_entry(struct txgbe_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + union txgbe_atr_input *mask = &adapter->fdir_mask; + struct ethtool_rx_flow_spec *fsp = + (struct ethtool_rx_flow_spec *)&cmd->fs; + struct hlist_node *node; + struct txgbe_fdir_filter *rule = NULL; + + /* report total rule count */ + cmd->data = (1024 << adapter->fdir_pballoc) - 2; + + hlist_for_each_entry_safe(rule, node, + &adapter->fdir_filter_list, fdir_node) { + if (fsp->location <= rule->sw_idx) + break; + } + + if (!rule || fsp->location != rule->sw_idx) + return -EINVAL; + + /* fill out the flow spec entry */ + + /* set flow type field */ + switch (rule->filter.formatted.flow_type) { + case TXGBE_ATR_FLOW_TYPE_TCPV4: + fsp->flow_type = TCP_V4_FLOW; + break; + case TXGBE_ATR_FLOW_TYPE_UDPV4: + fsp->flow_type = UDP_V4_FLOW; + break; + case TXGBE_ATR_FLOW_TYPE_SCTPV4: + fsp->flow_type = SCTP_V4_FLOW; + break; + case TXGBE_ATR_FLOW_TYPE_IPV4: + fsp->flow_type = IP_USER_FLOW; + fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; + fsp->h_u.usr_ip4_spec.proto = 0; + fsp->m_u.usr_ip4_spec.proto = 0; + break; + default: + return -EINVAL; + } + + fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port; + fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port; + fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port; + fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port; + fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0]; + fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0]; + fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0]; + fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0]; + fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes; + fsp->m_ext.vlan_etype = mask->formatted.flex_bytes; + fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool); + fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool); + fsp->flow_type |= FLOW_EXT; + + /* record action */ + if (rule->action == TXGBE_RDB_FDIR_DROP_QUEUE) + fsp->ring_cookie = RX_CLS_FLOW_DISC; + else + fsp->ring_cookie = rule->action; + + return 0; +} + +static int txgbe_get_ethtool_fdir_all(struct txgbe_adapter *adapter, + struct ethtool_rxnfc *cmd, + u32 *rule_locs) +{ + struct hlist_node *node; + struct txgbe_fdir_filter *rule; + int cnt = 0; + + /* report total rule count */ + cmd->data = (1024 << adapter->fdir_pballoc) - 2; + + hlist_for_each_entry_safe(rule, node, + &adapter->fdir_filter_list, fdir_node) { + if (cnt == cmd->rule_cnt) + return -EMSGSIZE; + rule_locs[cnt] = rule->sw_idx; + cnt++; + } + + cmd->rule_cnt = cnt; + + return 0; +} + +static int txgbe_get_rss_hash_opts(struct txgbe_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + cmd->data = 0; + + /* Report default options for RSS on txgbe */ + switch (cmd->flow_type) { + case TCP_V4_FLOW: + cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + /* fall through */ + case UDP_V4_FLOW: + if (adapter->flags2 & TXGBE_FLAG2_RSS_FIELD_IPV4_UDP) + cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + /* fall through */ + case SCTP_V4_FLOW: + case AH_ESP_V4_FLOW: + case AH_V4_FLOW: + case ESP_V4_FLOW: + case IPV4_FLOW: + cmd->data |= RXH_IP_SRC | RXH_IP_DST; + break; + case TCP_V6_FLOW: + cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + /* fall through */ + case UDP_V6_FLOW: + if (adapter->flags2 & TXGBE_FLAG2_RSS_FIELD_IPV6_UDP) + cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + /* fall through */ + case SCTP_V6_FLOW: + case AH_ESP_V6_FLOW: + case AH_V6_FLOW: + case ESP_V6_FLOW: + case IPV6_FLOW: + cmd->data |= RXH_IP_SRC | RXH_IP_DST; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int txgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, + u32 *rule_locs) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + int ret = -EOPNOTSUPP; + + switch (cmd->cmd) { + case ETHTOOL_GRXRINGS: + cmd->data = adapter->num_rx_queues; + ret = 0; + break; + case ETHTOOL_GRXCLSRLCNT: + cmd->rule_cnt = adapter->fdir_filter_count; + ret = 0; + break; + case ETHTOOL_GRXCLSRULE: + ret = txgbe_get_ethtool_fdir_entry(adapter, cmd); + break; + case ETHTOOL_GRXCLSRLALL: + ret = txgbe_get_ethtool_fdir_all(adapter, cmd, + (u32 *)rule_locs); + break; + case ETHTOOL_GRXFH: + ret = txgbe_get_rss_hash_opts(adapter, cmd); + break; + default: + break; + } + + return ret; +} + +static int txgbe_update_ethtool_fdir_entry(struct txgbe_adapter *adapter, + struct txgbe_fdir_filter *input, + u16 sw_idx) +{ + struct txgbe_hw *hw = &adapter->hw; + struct hlist_node *node, *parent; + struct txgbe_fdir_filter *rule; + bool deleted = false; + s32 err; + + parent = NULL; + rule = NULL; + + hlist_for_each_entry_safe(rule, node, + &adapter->fdir_filter_list, fdir_node) { + /* hash found, or no matching entry */ + if (rule->sw_idx >= sw_idx) + break; + parent = node; + } + + /* if there is an old rule occupying our place remove it */ + if (rule && (rule->sw_idx == sw_idx)) { + /* hardware filters are only configured when interface is up, + * and we should not issue filter commands while the interface + * is down + */ + if (netif_running(adapter->netdev) && + (!input || (rule->filter.formatted.bkt_hash != + input->filter.formatted.bkt_hash))) { + err = txgbe_fdir_erase_perfect_filter(hw, + &rule->filter, + sw_idx); + if (err) + return -EINVAL; + } + + hlist_del(&rule->fdir_node); + kfree(rule); + adapter->fdir_filter_count--; + deleted = true; + } + + /* If we weren't given an input, then this was a request to delete a + * filter. We should return -EINVAL if the filter wasn't found, but + * return 0 if the rule was successfully deleted. + */ + if (!input) + return deleted ? 0 : -EINVAL; + + /* initialize node and set software index */ + INIT_HLIST_NODE(&input->fdir_node); + + /* add filter to the list */ + if (parent) + hlist_add_behind(&input->fdir_node, parent); + else + hlist_add_head(&input->fdir_node, + &adapter->fdir_filter_list); + + /* update counts */ + adapter->fdir_filter_count++; + + return 0; +} + +static int txgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp, + u8 *flow_type) +{ + switch (fsp->flow_type & ~FLOW_EXT) { + case TCP_V4_FLOW: + *flow_type = TXGBE_ATR_FLOW_TYPE_TCPV4; + break; + case UDP_V4_FLOW: + *flow_type = TXGBE_ATR_FLOW_TYPE_UDPV4; + break; + case SCTP_V4_FLOW: + *flow_type = TXGBE_ATR_FLOW_TYPE_SCTPV4; + break; + case IP_USER_FLOW: + switch (fsp->h_u.usr_ip4_spec.proto) { + case IPPROTO_TCP: + *flow_type = TXGBE_ATR_FLOW_TYPE_TCPV4; + break; + case IPPROTO_UDP: + *flow_type = TXGBE_ATR_FLOW_TYPE_UDPV4; + break; + case IPPROTO_SCTP: + *flow_type = TXGBE_ATR_FLOW_TYPE_SCTPV4; + break; + case 0: + if (!fsp->m_u.usr_ip4_spec.proto) { + *flow_type = TXGBE_ATR_FLOW_TYPE_IPV4; + break; + } + /* fall through */ + default: + return 0; + } + break; + default: + return 0; + } + + return 1; +} + +static int txgbe_add_ethtool_fdir_entry(struct txgbe_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + struct ethtool_rx_flow_spec *fsp = + (struct ethtool_rx_flow_spec *)&cmd->fs; + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_fdir_filter *input; + union txgbe_atr_input mask; + int err; + u16 ptype = 0; + + if (!(adapter->flags & TXGBE_FLAG_FDIR_PERFECT_CAPABLE)) + return -EOPNOTSUPP; + + /* + * Don't allow programming if the action is a queue greater than + * the number of online Rx queues. + */ + if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) && + (fsp->ring_cookie >= adapter->num_rx_queues)) + return -EINVAL; + + /* Don't allow indexes to exist outside of available space */ + if (fsp->location >= ((1024 << adapter->fdir_pballoc) - 2)) { + e_err(drv, "Location out of range\n"); + return -EINVAL; + } + + input = kzalloc(sizeof(*input), GFP_ATOMIC); + if (!input) + return -ENOMEM; + + memset(&mask, 0, sizeof(union txgbe_atr_input)); + + /* set SW index */ + input->sw_idx = fsp->location; + + /* record flow type */ + if (!txgbe_flowspec_to_flow_type(fsp, + &input->filter.formatted.flow_type)) { + e_err(drv, "Unrecognized flow type\n"); + goto err_out; + } + + mask.formatted.flow_type = TXGBE_ATR_L4TYPE_IPV6_MASK | + TXGBE_ATR_L4TYPE_MASK; + + if (input->filter.formatted.flow_type == TXGBE_ATR_FLOW_TYPE_IPV4) + mask.formatted.flow_type &= TXGBE_ATR_L4TYPE_IPV6_MASK; + + /* Copy input into formatted structures */ + input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src; + mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src; + input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst; + mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst; + input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc; + mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc; + input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst; + mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst; + + if (fsp->flow_type & FLOW_EXT) { + input->filter.formatted.vm_pool = + (unsigned char)ntohl(fsp->h_ext.data[1]); + mask.formatted.vm_pool = + (unsigned char)ntohl(fsp->m_ext.data[1]); + input->filter.formatted.flex_bytes = + fsp->h_ext.vlan_etype; + mask.formatted.flex_bytes = fsp->m_ext.vlan_etype; +#if 0 + /* need fix */ + input->filter.formatted.tunnel_type = + (unsigned char)ntohl(fsp->h_ext.data[0]); + mask.formatted.tunnel_type = + (unsigned char)ntohl(fsp->m_ext.data[0]); +#endif + } + + switch (input->filter.formatted.flow_type) { + case TXGBE_ATR_FLOW_TYPE_TCPV4: + ptype = TXGBE_PTYPE_L2_IPV4_TCP; + break; + case TXGBE_ATR_FLOW_TYPE_UDPV4: + ptype = TXGBE_PTYPE_L2_IPV4_UDP; + break; + case TXGBE_ATR_FLOW_TYPE_SCTPV4: + ptype = TXGBE_PTYPE_L2_IPV4_SCTP; + break; + case TXGBE_ATR_FLOW_TYPE_IPV4: + ptype = TXGBE_PTYPE_L2_IPV4; + break; + case TXGBE_ATR_FLOW_TYPE_TCPV6: + ptype = TXGBE_PTYPE_L2_IPV6_TCP; + break; + case TXGBE_ATR_FLOW_TYPE_UDPV6: + ptype = TXGBE_PTYPE_L2_IPV6_UDP; + break; + case TXGBE_ATR_FLOW_TYPE_SCTPV6: + ptype = TXGBE_PTYPE_L2_IPV6_SCTP; + break; + case TXGBE_ATR_FLOW_TYPE_IPV6: + ptype = TXGBE_PTYPE_L2_IPV6; + break; + default: + break; + } + + input->filter.formatted.vlan_id = htons(ptype); + if (mask.formatted.flow_type & TXGBE_ATR_L4TYPE_MASK) + mask.formatted.vlan_id = 0xFFFF; + else + mask.formatted.vlan_id = htons(0xFFF8); + + /* determine if we need to drop or route the packet */ + if (fsp->ring_cookie == RX_CLS_FLOW_DISC) + input->action = TXGBE_RDB_FDIR_DROP_QUEUE; + else + input->action = fsp->ring_cookie; + + spin_lock(&adapter->fdir_perfect_lock); + + if (hlist_empty(&adapter->fdir_filter_list)) { + /* save mask and program input mask into HW */ + memcpy(&adapter->fdir_mask, &mask, sizeof(mask)); + err = txgbe_fdir_set_input_mask(hw, &mask, + adapter->cloud_mode); + if (err) { + e_err(drv, "Error writing mask\n"); + goto err_out_w_lock; + } + } else if (memcmp(&adapter->fdir_mask, &mask, sizeof(mask))) { + e_err(drv, "Hardware only supports one mask per port. To change" + "the mask you must first delete all the rules.\n"); + goto err_out_w_lock; + } + + /* apply mask and compute/store hash */ + txgbe_atr_compute_perfect_hash(&input->filter, &mask); + + /* only program filters to hardware if the net device is running, as + * we store the filters in the Rx buffer which is not allocated when + * the device is down + */ + if (netif_running(adapter->netdev)) { + err = txgbe_fdir_write_perfect_filter(hw, + &input->filter, input->sw_idx, + (input->action == TXGBE_RDB_FDIR_DROP_QUEUE) ? + TXGBE_RDB_FDIR_DROP_QUEUE : + adapter->rx_ring[input->action]->reg_idx, + adapter->cloud_mode); + if (err) + goto err_out_w_lock; + } + + txgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx); + + spin_unlock(&adapter->fdir_perfect_lock); + + return err; +err_out_w_lock: + spin_unlock(&adapter->fdir_perfect_lock); +err_out: + kfree(input); + return -EINVAL; +} + +static int txgbe_del_ethtool_fdir_entry(struct txgbe_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + struct ethtool_rx_flow_spec *fsp = + (struct ethtool_rx_flow_spec *)&cmd->fs; + int err; + + spin_lock(&adapter->fdir_perfect_lock); + err = txgbe_update_ethtool_fdir_entry(adapter, NULL, fsp->location); + spin_unlock(&adapter->fdir_perfect_lock); + + return err; +} + +#define UDP_RSS_FLAGS (TXGBE_FLAG2_RSS_FIELD_IPV4_UDP | \ + TXGBE_FLAG2_RSS_FIELD_IPV6_UDP) +static int txgbe_set_rss_hash_opt(struct txgbe_adapter *adapter, + struct ethtool_rxnfc *nfc) +{ + u32 flags2 = adapter->flags2; + + /* + * RSS does not support anything other than hashing + * to queues on src and dst IPs and ports + */ + if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3)) + return -EINVAL; + + switch (nfc->flow_type) { + case TCP_V4_FLOW: + case TCP_V6_FLOW: + if (!(nfc->data & RXH_IP_SRC) || + !(nfc->data & RXH_IP_DST) || + !(nfc->data & RXH_L4_B_0_1) || + !(nfc->data & RXH_L4_B_2_3)) + return -EINVAL; + break; + case UDP_V4_FLOW: + if (!(nfc->data & RXH_IP_SRC) || + !(nfc->data & RXH_IP_DST)) + return -EINVAL; + switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { + case 0: + flags2 &= ~TXGBE_FLAG2_RSS_FIELD_IPV4_UDP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + flags2 |= TXGBE_FLAG2_RSS_FIELD_IPV4_UDP; + break; + default: + return -EINVAL; + } + break; + case UDP_V6_FLOW: + if (!(nfc->data & RXH_IP_SRC) || + !(nfc->data & RXH_IP_DST)) + return -EINVAL; + switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { + case 0: + flags2 &= ~TXGBE_FLAG2_RSS_FIELD_IPV6_UDP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + flags2 |= TXGBE_FLAG2_RSS_FIELD_IPV6_UDP; + break; + default: + return -EINVAL; + } + break; + case AH_ESP_V4_FLOW: + case AH_V4_FLOW: + case ESP_V4_FLOW: + case SCTP_V4_FLOW: + case AH_ESP_V6_FLOW: + case AH_V6_FLOW: + case ESP_V6_FLOW: + case SCTP_V6_FLOW: + if (!(nfc->data & RXH_IP_SRC) || + !(nfc->data & RXH_IP_DST) || + (nfc->data & RXH_L4_B_0_1) || + (nfc->data & RXH_L4_B_2_3)) + return -EINVAL; + break; + default: + return -EINVAL; + } + + /* if we changed something we need to update flags */ + if (flags2 != adapter->flags2) { + struct txgbe_hw *hw = &adapter->hw; + u32 mrqc; + + mrqc = rd32(hw, TXGBE_RDB_RA_CTL); + + if ((flags2 & UDP_RSS_FLAGS) && + !(adapter->flags2 & UDP_RSS_FLAGS)) + e_warn(drv, "enabling UDP RSS: fragmented packets" + " may arrive out of order to the stack above\n"); + + adapter->flags2 = flags2; + + /* Perform hash on these packet types */ + mrqc |= TXGBE_RDB_RA_CTL_RSS_IPV4 + | TXGBE_RDB_RA_CTL_RSS_IPV4_TCP + | TXGBE_RDB_RA_CTL_RSS_IPV6 + | TXGBE_RDB_RA_CTL_RSS_IPV6_TCP; + + mrqc &= ~(TXGBE_RDB_RA_CTL_RSS_IPV4_UDP | + TXGBE_RDB_RA_CTL_RSS_IPV6_UDP); + + if (flags2 & TXGBE_FLAG2_RSS_FIELD_IPV4_UDP) + mrqc |= TXGBE_RDB_RA_CTL_RSS_IPV4_UDP; + + if (flags2 & TXGBE_FLAG2_RSS_FIELD_IPV6_UDP) + mrqc |= TXGBE_RDB_RA_CTL_RSS_IPV6_UDP; + + wr32(hw, TXGBE_RDB_RA_CTL, mrqc); + } + + return 0; +} + +static int txgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + int ret = -EOPNOTSUPP; + + switch (cmd->cmd) { + case ETHTOOL_SRXCLSRLINS: + ret = txgbe_add_ethtool_fdir_entry(adapter, cmd); + break; + case ETHTOOL_SRXCLSRLDEL: + ret = txgbe_del_ethtool_fdir_entry(adapter, cmd); + break; + case ETHTOOL_SRXFH: + ret = txgbe_set_rss_hash_opt(adapter, cmd); + break; + default: + break; + } + + return ret; +} + +static int txgbe_rss_indir_tbl_max(struct txgbe_adapter *adapter) +{ + return 64; +} + + +static u32 txgbe_get_rxfh_key_size(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + return sizeof(adapter->rss_key); +} + +static u32 txgbe_rss_indir_size(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + return txgbe_rss_indir_tbl_entries(adapter); +} + +static void txgbe_get_reta(struct txgbe_adapter *adapter, u32 *indir) +{ + int i, reta_size = txgbe_rss_indir_tbl_entries(adapter); + + for (i = 0; i < reta_size; i++) + indir[i] = adapter->rss_indir_tbl[i]; +} + +static int txgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, + u8 *hfunc) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + + if (indir) + txgbe_get_reta(adapter, indir); + + if (key) + memcpy(key, adapter->rss_key, txgbe_get_rxfh_key_size(netdev)); + + return 0; +} + +static int txgbe_set_rxfh(struct net_device *netdev, const u32 *indir, + const u8 *key, const u8 hfunc) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + int i; + u32 reta_entries = txgbe_rss_indir_tbl_entries(adapter); + + if (hfunc) + return -EINVAL; + + /* Fill out the redirection table */ + if (indir) { + int max_queues = min_t(int, adapter->num_rx_queues, + txgbe_rss_indir_tbl_max(adapter)); + + /*Allow at least 2 queues w/ SR-IOV.*/ + if ((adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) && + (max_queues < 2)) + max_queues = 2; + + /* Verify user input. */ + for (i = 0; i < reta_entries; i++) + if (indir[i] >= max_queues) + return -EINVAL; + + for (i = 0; i < reta_entries; i++) + adapter->rss_indir_tbl[i] = indir[i]; + } + + /* Fill out the rss hash key */ + if (key) + memcpy(adapter->rss_key, key, txgbe_get_rxfh_key_size(netdev)); + + txgbe_store_reta(adapter); + + return 0; +} + +static int txgbe_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *info) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + + /* we always support timestamping disabled */ + info->rx_filters = 1 << HWTSTAMP_FILTER_NONE; + + info->so_timestamping = + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + + if (adapter->ptp_clock) + info->phc_index = ptp_clock_index(adapter->ptp_clock); + else + info->phc_index = -1; + + info->tx_types = + (1 << HWTSTAMP_TX_OFF) | + (1 << HWTSTAMP_TX_ON); + + info->rx_filters |= + (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | + (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); + + return 0; +} + +static unsigned int txgbe_max_channels(struct txgbe_adapter *adapter) +{ + unsigned int max_combined; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + if (!(adapter->flags & TXGBE_FLAG_MSIX_ENABLED)) { + /* We only support one q_vector without MSI-X */ + max_combined = 1; + } else if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) { + /* SR-IOV currently only allows one queue on the PF */ + max_combined = 1; + } else if (tcs > 1) { + /* For DCB report channels per traffic class */ + if (tcs > 4) { + /* 8 TC w/ 8 queues per TC */ + max_combined = 8; + } else { + /* 4 TC w/ 16 queues per TC */ + max_combined = 16; + } + } else if (adapter->atr_sample_rate) { + /* support up to 64 queues with ATR */ + max_combined = TXGBE_MAX_FDIR_INDICES; + } else { + /* support up to max allowed queues with RSS */ + max_combined = txgbe_max_rss_indices(adapter); + } + + return max_combined; +} + +static void txgbe_get_channels(struct net_device *dev, + struct ethtool_channels *ch) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + + /* report maximum channels */ + ch->max_combined = txgbe_max_channels(adapter); + + /* report info for other vector */ + if (adapter->flags & TXGBE_FLAG_MSIX_ENABLED) { + ch->max_other = NON_Q_VECTORS; + ch->other_count = NON_Q_VECTORS; + } + + /* record RSS queues */ + ch->combined_count = adapter->ring_feature[RING_F_RSS].indices; + + /* nothing else to report if RSS is disabled */ + if (ch->combined_count == 1) + return; + + /* we do not support ATR queueing if SR-IOV is enabled */ + if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) + return; + + /* same thing goes for being DCB enabled */ + if (netdev_get_num_tc(dev) > 1) + return; + + /* if ATR is disabled we can exit */ + if (!adapter->atr_sample_rate) + return; + + /* report flow director queues as maximum channels */ + ch->combined_count = adapter->ring_feature[RING_F_FDIR].indices; +} + +static int txgbe_set_channels(struct net_device *dev, + struct ethtool_channels *ch) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + unsigned int count = ch->combined_count; + u8 max_rss_indices = txgbe_max_rss_indices(adapter); + + /* verify they are not requesting separate vectors */ + if (!count || ch->rx_count || ch->tx_count) + return -EINVAL; + + /* verify other_count has not changed */ + if (ch->other_count != NON_Q_VECTORS) + return -EINVAL; + + /* verify the number of channels does not exceed hardware limits */ + if (count > txgbe_max_channels(adapter)) + return -EINVAL; + + /* update feature limits from largest to smallest supported values */ + adapter->ring_feature[RING_F_FDIR].limit = count; + + /* cap RSS limit */ + if (count > max_rss_indices) + count = max_rss_indices; + adapter->ring_feature[RING_F_RSS].limit = count; + + /* use setup TC to update any traffic class queue mapping */ + return txgbe_setup_tc(dev, netdev_get_num_tc(dev)); +} + +static int txgbe_get_module_info(struct net_device *dev, + struct ethtool_modinfo *modinfo) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + struct txgbe_hw *hw = &adapter->hw; + u32 status; + u8 sff8472_rev, addr_mode; + bool page_swap = false; + + /* Check whether we support SFF-8472 or not */ + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_SFF_8472_COMP, + &sff8472_rev); + if (status != 0) + return -EIO; + + /* addressing mode is not supported */ + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_SFF_8472_SWAP, + &addr_mode); + if (status != 0) + return -EIO; + + if (addr_mode & TXGBE_SFF_ADDRESSING_MODE) { + e_err(drv, "Address change required to access page 0xA2, " + "but not supported. Please report the module type to the " + "driver maintainers.\n"); + page_swap = true; + } + + if (sff8472_rev == TXGBE_SFF_SFF_8472_UNSUP || page_swap) { + /* We have a SFP, but it does not support SFF-8472 */ + modinfo->type = ETH_MODULE_SFF_8079; + modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; + } else { + /* We have a SFP which supports a revision of SFF-8472. */ + modinfo->type = ETH_MODULE_SFF_8472; + modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; + } + + return 0; +} + +static int txgbe_get_module_eeprom(struct net_device *dev, + struct ethtool_eeprom *ee, + u8 *data) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + struct txgbe_hw *hw = &adapter->hw; + u32 status = TXGBE_ERR_PHY_ADDR_INVALID; + u8 databyte = 0xFF; + int i = 0; + + if (ee->len == 0) + return -EINVAL; + + for (i = ee->offset; i < ee->offset + ee->len; i++) { + /* I2C reads can take long time */ + if (test_bit(__TXGBE_IN_SFP_INIT, &adapter->state)) + return -EBUSY; + + if (i < ETH_MODULE_SFF_8079_LEN) + status = TCALL(hw, phy.ops.read_i2c_eeprom, i, + &databyte); + else + status = TCALL(hw, phy.ops.read_i2c_sff8472, i, + &databyte); + + if (status != 0) + return -EIO; + + data[i - ee->offset] = databyte; + } + + return 0; +} + +static int txgbe_get_eee(struct net_device *netdev, struct ethtool_eee *edata) +{ + return 0; +} + +static int txgbe_set_eee(struct net_device *netdev, struct ethtool_eee *edata) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + struct ethtool_eee eee_data; + s32 ret_val; + + if (!(hw->mac.ops.setup_eee && + (adapter->flags2 & TXGBE_FLAG2_EEE_CAPABLE))) + return -EOPNOTSUPP; + + memset(&eee_data, 0, sizeof(struct ethtool_eee)); + + ret_val = txgbe_get_eee(netdev, &eee_data); + if (ret_val) + return ret_val; + + if (eee_data.eee_enabled && !edata->eee_enabled) { + if (eee_data.tx_lpi_enabled != edata->tx_lpi_enabled) { + e_dev_err("Setting EEE tx-lpi is not supported\n"); + return -EINVAL; + } + + if (eee_data.tx_lpi_timer != edata->tx_lpi_timer) { + e_dev_err("Setting EEE Tx LPI timer is not " + "supported\n"); + return -EINVAL; + } + + if (eee_data.advertised != edata->advertised) { + e_dev_err("Setting EEE advertised speeds is not " + "supported\n"); + return -EINVAL; + } + + } + + if (eee_data.eee_enabled != edata->eee_enabled) { + + if (edata->eee_enabled) + adapter->flags2 |= TXGBE_FLAG2_EEE_ENABLED; + else + adapter->flags2 &= ~TXGBE_FLAG2_EEE_ENABLED; + + /* reset link */ + if (netif_running(netdev)) + txgbe_reinit_locked(adapter); + else + txgbe_reset(adapter); + } + + return 0; +} + +static int txgbe_set_flash(struct net_device *netdev, struct ethtool_flash *ef) +{ + int ret; + const struct firmware *fw; + struct txgbe_adapter *adapter = netdev_priv(netdev); + + ret = request_firmware(&fw, ef->data, &netdev->dev); + if (ret < 0) + return ret; + + if (txgbe_mng_present(&adapter->hw)) { + ret = txgbe_upgrade_flash_hostif(&adapter->hw, ef->region, + fw->data, fw->size); + } else + ret = -EOPNOTSUPP; + + release_firmware(fw); + if (!ret) + dev_info(&netdev->dev, + "loaded firmware %s, reload txgbe driver\n", ef->data); + return ret; +} + +static struct ethtool_ops txgbe_ethtool_ops = { + .get_link_ksettings = txgbe_get_link_ksettings, + .set_link_ksettings = txgbe_set_link_ksettings, + .get_drvinfo = txgbe_get_drvinfo, + .get_regs_len = txgbe_get_regs_len, + .get_regs = txgbe_get_regs, + .get_wol = txgbe_get_wol, + .set_wol = txgbe_set_wol, + .nway_reset = txgbe_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = txgbe_get_eeprom_len, + .get_eeprom = txgbe_get_eeprom, + .set_eeprom = txgbe_set_eeprom, + .get_ringparam = txgbe_get_ringparam, + .set_ringparam = txgbe_set_ringparam, + .get_pauseparam = txgbe_get_pauseparam, + .set_pauseparam = txgbe_set_pauseparam, + .get_msglevel = txgbe_get_msglevel, + .set_msglevel = txgbe_set_msglevel, + .self_test = txgbe_diag_test, + .get_strings = txgbe_get_strings, + .set_phys_id = txgbe_set_phys_id, + .get_sset_count = txgbe_get_sset_count, + .get_ethtool_stats = txgbe_get_ethtool_stats, + .get_coalesce = txgbe_get_coalesce, + .set_coalesce = txgbe_set_coalesce, + .get_rxnfc = txgbe_get_rxnfc, + .set_rxnfc = txgbe_set_rxnfc, + .get_eee = txgbe_get_eee, + .set_eee = txgbe_set_eee, + .get_channels = txgbe_get_channels, + .set_channels = txgbe_set_channels, + .get_module_info = txgbe_get_module_info, + .get_module_eeprom = txgbe_get_module_eeprom, + .get_ts_info = txgbe_get_ts_info, + .get_rxfh_indir_size = txgbe_rss_indir_size, + .get_rxfh_key_size = txgbe_get_rxfh_key_size, + .get_rxfh = txgbe_get_rxfh, + .set_rxfh = txgbe_set_rxfh, + .flash_device = txgbe_set_flash, +}; + +void txgbe_set_ethtool_ops(struct net_device *netdev) +{ + netdev->ethtool_ops = &txgbe_ethtool_ops; +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_hw.c b/drivers/net/ethernet/netswift/txgbe/txgbe_hw.c new file mode 100644 index 0000000000000..17e366ebd6fe4 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_hw.c @@ -0,0 +1,7072 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_82599.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#include "txgbe_type.h" +#include "txgbe_hw.h" +#include "txgbe_phy.h" +#include "txgbe.h" + + +#define TXGBE_SP_MAX_TX_QUEUES 128 +#define TXGBE_SP_MAX_RX_QUEUES 128 +#define TXGBE_SP_RAR_ENTRIES 128 +#define TXGBE_SP_MC_TBL_SIZE 128 +#define TXGBE_SP_VFT_TBL_SIZE 128 +#define TXGBE_SP_RX_PB_SIZE 512 + +STATIC s32 txgbe_get_eeprom_semaphore(struct txgbe_hw *hw); +STATIC void txgbe_release_eeprom_semaphore(struct txgbe_hw *hw); +STATIC s32 txgbe_mta_vector(struct txgbe_hw *hw, u8 *mc_addr); +STATIC s32 txgbe_get_san_mac_addr_offset(struct txgbe_hw *hw, + u16 *san_mac_offset); + +STATIC s32 txgbe_setup_copper_link(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); +s32 txgbe_check_mac_link(struct txgbe_hw *hw, u32 *speed, + bool *link_up, bool link_up_wait_to_complete); + + +u32 rd32_ephy(struct txgbe_hw *hw, u32 addr) +{ + unsigned int portRegOffset; + u32 data; + + /* Set the LAN port indicator to portRegOffset[1] */ + /* 1st, write the regOffset to IDA_ADDR register */ + portRegOffset = TXGBE_ETHPHY_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = TXGBE_ETHPHY_IDA_DATA; + data = rd32(hw, portRegOffset); + return data; +} + + +u32 txgbe_rd32_epcs(struct txgbe_hw *hw, u32 addr) +{ + unsigned int portRegOffset; + u32 data; + /* Set the LAN port indicator to portRegOffset[1] */ + /* 1st, write the regOffset to IDA_ADDR register */ + portRegOffset = TXGBE_XPCS_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = TXGBE_XPCS_IDA_DATA; + data = rd32(hw, portRegOffset); + + return data; +} + + +void txgbe_wr32_ephy(struct txgbe_hw *hw, u32 addr, u32 data) +{ + unsigned int portRegOffset; + + /* Set the LAN port indicator to portRegOffset[1] */ + /* 1st, write the regOffset to IDA_ADDR register */ + portRegOffset = TXGBE_ETHPHY_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = TXGBE_ETHPHY_IDA_DATA; + wr32(hw, portRegOffset, data); +} + +void txgbe_wr32_epcs(struct txgbe_hw *hw, u32 addr, u32 data) +{ + unsigned int portRegOffset; + + /* Set the LAN port indicator to portRegOffset[1] */ + /* 1st, write the regOffset to IDA_ADDR register */ + portRegOffset = TXGBE_XPCS_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = TXGBE_XPCS_IDA_DATA; + wr32(hw, portRegOffset, data); +} + +/** + * txgbe_get_pcie_msix_count - Gets MSI-X vector count + * @hw: pointer to hardware structure + * + * Read PCIe configuration space, and get the MSI-X vector count from + * the capabilities table. + **/ +u16 txgbe_get_pcie_msix_count(struct txgbe_hw *hw) +{ + u16 msix_count = 1; + u16 max_msix_count; + u32 pos; + + DEBUGFUNC("\n"); + + max_msix_count = TXGBE_MAX_MSIX_VECTORS_SAPPHIRE; + pos = pci_find_capability(((struct txgbe_adapter *)hw->back)->pdev, PCI_CAP_ID_MSIX); + if (!pos) + return msix_count; + pci_read_config_word(((struct txgbe_adapter *)hw->back)->pdev, + pos + PCI_MSIX_FLAGS, &msix_count); + + if (TXGBE_REMOVED(hw->hw_addr)) + msix_count = 0; + msix_count &= TXGBE_PCIE_MSIX_TBL_SZ_MASK; + + /* MSI-X count is zero-based in HW */ + msix_count++; + + if (msix_count > max_msix_count) + msix_count = max_msix_count; + + return msix_count; +} + +/** + * txgbe_init_hw - Generic hardware initialization + * @hw: pointer to hardware structure + * + * Initialize the hardware by resetting the hardware, filling the bus info + * structure and media type, clears all on chip counters, initializes receive + * address registers, multicast table, VLAN filter table, calls routine to set + * up link and flow control settings, and leaves transmit and receive units + * disabled and uninitialized + **/ +s32 txgbe_init_hw(struct txgbe_hw *hw) +{ + s32 status; + + DEBUGFUNC("\n"); + + /* Reset the hardware */ + status = TCALL(hw, mac.ops.reset_hw); + + if (status == 0) { + /* Start the HW */ + status = TCALL(hw, mac.ops.start_hw); + } + + return status; +} + + +/** + * txgbe_clear_hw_cntrs - Generic clear hardware counters + * @hw: pointer to hardware structure + * + * Clears all hardware statistics counters by reading them from the hardware + * Statistics counters are clear on read. + **/ +s32 txgbe_clear_hw_cntrs(struct txgbe_hw *hw) +{ + u16 i = 0; + + DEBUGFUNC("\n"); + + rd32(hw, TXGBE_RX_CRC_ERROR_FRAMES_LOW); + for (i = 0; i < 8; i++) + rd32(hw, TXGBE_RDB_MPCNT(i)); + + rd32(hw, TXGBE_RX_LEN_ERROR_FRAMES_LOW); + rd32(hw, TXGBE_RDB_LXONTXC); + rd32(hw, TXGBE_RDB_LXOFFTXC); + rd32(hw, TXGBE_MAC_LXONRXC); + rd32(hw, TXGBE_MAC_LXOFFRXC); + + for (i = 0; i < 8; i++) { + rd32(hw, TXGBE_RDB_PXONTXC(i)); + rd32(hw, TXGBE_RDB_PXOFFTXC(i)); + rd32(hw, TXGBE_MAC_PXONRXC(i)); + wr32m(hw, TXGBE_MMC_CONTROL, TXGBE_MMC_CONTROL_UP, i<<16); + rd32(hw, TXGBE_MAC_PXOFFRXC); + } + for (i = 0; i < 8; i++) + rd32(hw, TXGBE_RDB_PXON2OFFCNT(i)); + for (i = 0; i < 128; i++) { + wr32(hw, TXGBE_PX_MPRC(i), 0); + } + + rd32(hw, TXGBE_PX_GPRC); + rd32(hw, TXGBE_PX_GPTC); + rd32(hw, TXGBE_PX_GORC_MSB); + rd32(hw, TXGBE_PX_GOTC_MSB); + + rd32(hw, TXGBE_RX_BC_FRAMES_GOOD_LOW); + rd32(hw, TXGBE_RX_UNDERSIZE_FRAMES_GOOD); + rd32(hw, TXGBE_RX_OVERSIZE_FRAMES_GOOD); + rd32(hw, TXGBE_RX_FRAME_CNT_GOOD_BAD_LOW); + rd32(hw, TXGBE_TX_FRAME_CNT_GOOD_BAD_LOW); + rd32(hw, TXGBE_TX_MC_FRAMES_GOOD_LOW); + rd32(hw, TXGBE_TX_BC_FRAMES_GOOD_LOW); + rd32(hw, TXGBE_RDM_DRP_PKT); + return 0; +} + +/** + * txgbe_device_supports_autoneg_fc - Check if device supports autonegotiation + * of flow control + * @hw: pointer to hardware structure + * + * This function returns true if the device supports flow control + * autonegotiation, and false if it does not. + * + **/ +bool txgbe_device_supports_autoneg_fc(struct txgbe_hw *hw) +{ + bool supported = false; + u32 speed; + bool link_up; + u8 device_type = hw->subsystem_id & 0xF0; + + DEBUGFUNC("\n"); + + switch (hw->phy.media_type) { + case txgbe_media_type_fiber: + TCALL(hw, mac.ops.check_link, &speed, &link_up, false); + /* if link is down, assume supported */ + if (link_up) + supported = speed == TXGBE_LINK_SPEED_1GB_FULL ? + true : false; + else + supported = true; + break; + case txgbe_media_type_backplane: + supported = (device_type != TXGBE_ID_MAC_XAUI && + device_type != TXGBE_ID_MAC_SGMII); + break; + case txgbe_media_type_copper: + /* only some copper devices support flow control autoneg */ + supported = true; + break; + default: + break; + } + + ERROR_REPORT2(TXGBE_ERROR_UNSUPPORTED, + "Device %x does not support flow control autoneg", + hw->device_id); + return supported; +} + +/** + * txgbe_setup_fc - Set up flow control + * @hw: pointer to hardware structure + * + * Called at init time to set up flow control. + **/ +s32 txgbe_setup_fc(struct txgbe_hw *hw) +{ + s32 ret_val = 0; + u32 pcap = 0; + u32 value = 0; + u32 pcap_backplane = 0; + + DEBUGFUNC("\n"); + + /* Validate the requested mode */ + if (hw->fc.strict_ieee && hw->fc.requested_mode == txgbe_fc_rx_pause) { + ERROR_REPORT1(TXGBE_ERROR_UNSUPPORTED, + "txgbe_fc_rx_pause not valid in strict IEEE mode\n"); + ret_val = TXGBE_ERR_INVALID_LINK_SETTINGS; + goto out; + } + + /* + * 10gig parts do not have a word in the EEPROM to determine the + * default flow control setting, so we explicitly set it to full. + */ + if (hw->fc.requested_mode == txgbe_fc_default) + hw->fc.requested_mode = txgbe_fc_full; + + /* + * Set up the 1G and 10G flow control advertisement registers so the + * HW will be able to do fc autoneg once the cable is plugged in. If + * we link at 10G, the 1G advertisement is harmless and vice versa. + */ + + /* + * The possible values of fc.requested_mode are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames, + * but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames but + * we do not support receiving pause frames). + * 3: Both Rx and Tx flow control (symmetric) are enabled. + * other: Invalid. + */ + switch (hw->fc.requested_mode) { + case txgbe_fc_none: + /* Flow control completely disabled by software override. */ + break; + case txgbe_fc_tx_pause: + /* + * Tx Flow control is enabled, and Rx Flow control is + * disabled by software override. + */ + pcap |= TXGBE_SR_MII_MMD_AN_ADV_PAUSE_ASM; + pcap_backplane |= TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM; + break; + case txgbe_fc_rx_pause: + /* + * Rx Flow control is enabled and Tx Flow control is + * disabled by software override. Since there really + * isn't a way to advertise that we are capable of RX + * Pause ONLY, we will advertise that we support both + * symmetric and asymmetric Rx PAUSE, as such we fall + * through to the fc_full statement. Later, we will + * disable the adapter's ability to send PAUSE frames. + */ + case txgbe_fc_full: + /* Flow control (both Rx and Tx) is enabled by SW override. */ + pcap |= TXGBE_SR_MII_MMD_AN_ADV_PAUSE_SYM | + TXGBE_SR_MII_MMD_AN_ADV_PAUSE_ASM; + pcap_backplane |= TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM | + TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM; + break; + default: + ERROR_REPORT1(TXGBE_ERROR_ARGUMENT, + "Flow control param set incorrectly\n"); + ret_val = TXGBE_ERR_CONFIG; + goto out; + break; + } + + /* + * Enable auto-negotiation between the MAC & PHY; + * the MAC will advertise clause 37 flow control. + */ + value = txgbe_rd32_epcs(hw, TXGBE_SR_MII_MMD_AN_ADV); + value = (value & ~(TXGBE_SR_MII_MMD_AN_ADV_PAUSE_ASM | + TXGBE_SR_MII_MMD_AN_ADV_PAUSE_SYM)) | pcap; + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_AN_ADV, value); + + /* + * AUTOC restart handles negotiation of 1G and 10G on backplane + * and copper. + */ + if (hw->phy.media_type == txgbe_media_type_backplane) { + value = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_ADV_REG1); + value = (value & ~(TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM | + TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM)) | + pcap_backplane; + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_ADV_REG1, value); + + } else if ((hw->phy.media_type == txgbe_media_type_copper) && + (txgbe_device_supports_autoneg_fc(hw))) { + ret_val = txgbe_set_phy_pause_advertisement(hw, pcap_backplane); + } +out: + return ret_val; +} + +/** + * txgbe_read_pba_string - Reads part number string from EEPROM + * @hw: pointer to hardware structure + * @pba_num: stores the part number string from the EEPROM + * @pba_num_size: part number string buffer length + * + * Reads the part number string from the EEPROM. + **/ +s32 txgbe_read_pba_string(struct txgbe_hw *hw, u8 *pba_num, + u32 pba_num_size) +{ + s32 ret_val; + u16 data; + u16 pba_ptr; + u16 offset; + u16 length; + + DEBUGFUNC("\n"); + + if (pba_num == NULL) { + DEBUGOUT("PBA string buffer was null\n"); + return TXGBE_ERR_INVALID_ARGUMENT; + } + + ret_val = TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_PBANUM0_PTR, + &data); + if (ret_val) { + DEBUGOUT("NVM Read Error\n"); + return ret_val; + } + + ret_val = TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_PBANUM1_PTR, + &pba_ptr); + if (ret_val) { + DEBUGOUT("NVM Read Error\n"); + return ret_val; + } + + /* + * if data is not ptr guard the PBA must be in legacy format which + * means pba_ptr is actually our second data word for the PBA number + * and we can decode it into an ascii string + */ + if (data != TXGBE_PBANUM_PTR_GUARD) { + DEBUGOUT("NVM PBA number is not stored as string\n"); + + /* we will need 11 characters to store the PBA */ + if (pba_num_size < 11) { + DEBUGOUT("PBA string buffer too small\n"); + return TXGBE_ERR_NO_SPACE; + } + + /* extract hex string from data and pba_ptr */ + pba_num[0] = (data >> 12) & 0xF; + pba_num[1] = (data >> 8) & 0xF; + pba_num[2] = (data >> 4) & 0xF; + pba_num[3] = data & 0xF; + pba_num[4] = (pba_ptr >> 12) & 0xF; + pba_num[5] = (pba_ptr >> 8) & 0xF; + pba_num[6] = '-'; + pba_num[7] = 0; + pba_num[8] = (pba_ptr >> 4) & 0xF; + pba_num[9] = pba_ptr & 0xF; + + /* put a null character on the end of our string */ + pba_num[10] = '\0'; + + /* switch all the data but the '-' to hex char */ + for (offset = 0; offset < 10; offset++) { + if (pba_num[offset] < 0xA) + pba_num[offset] += '0'; + else if (pba_num[offset] < 0x10) + pba_num[offset] += 'A' - 0xA; + } + + return 0; + } + + ret_val = TCALL(hw, eeprom.ops.read, pba_ptr, &length); + if (ret_val) { + DEBUGOUT("NVM Read Error\n"); + return ret_val; + } + + if (length == 0xFFFF || length == 0) { + DEBUGOUT("NVM PBA number section invalid length\n"); + return TXGBE_ERR_PBA_SECTION; + } + + /* check if pba_num buffer is big enough */ + if (pba_num_size < (((u32)length * 2) - 1)) { + DEBUGOUT("PBA string buffer too small\n"); + return TXGBE_ERR_NO_SPACE; + } + + /* trim pba length from start of string */ + pba_ptr++; + length--; + + for (offset = 0; offset < length; offset++) { + ret_val = TCALL(hw, eeprom.ops.read, pba_ptr + offset, &data); + if (ret_val) { + DEBUGOUT("NVM Read Error\n"); + return ret_val; + } + pba_num[offset * 2] = (u8)(data >> 8); + pba_num[(offset * 2) + 1] = (u8)(data & 0xFF); + } + pba_num[offset * 2] = '\0'; + + return 0; +} + +/** + * txgbe_get_mac_addr - Generic get MAC address + * @hw: pointer to hardware structure + * @mac_addr: Adapter MAC address + * + * Reads the adapter's MAC address from first Receive Address Register (RAR0) + * A reset of the adapter must be performed prior to calling this function + * in order for the MAC address to have been loaded from the EEPROM into RAR0 + **/ +s32 txgbe_get_mac_addr(struct txgbe_hw *hw, u8 *mac_addr) +{ + u32 rar_high; + u32 rar_low; + u16 i; + + DEBUGFUNC("\n"); + + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, 0); + rar_high = rd32(hw, TXGBE_PSR_MAC_SWC_AD_H); + rar_low = rd32(hw, TXGBE_PSR_MAC_SWC_AD_L); + + for (i = 0; i < 2; i++) + mac_addr[i] = (u8)(rar_high >> (1 - i) * 8); + + for (i = 0; i < 4; i++) + mac_addr[i + 2] = (u8)(rar_low >> (3 - i) * 8); + + return 0; +} + +/** + * txgbe_set_pci_config_data - Generic store PCI bus info + * @hw: pointer to hardware structure + * @link_status: the link status returned by the PCI config space + * + * Stores the PCI bus info (speed, width, type) within the txgbe_hw structure + **/ +void txgbe_set_pci_config_data(struct txgbe_hw *hw, u16 link_status) +{ + if (hw->bus.type == txgbe_bus_type_unknown) + hw->bus.type = txgbe_bus_type_pci_express; + + switch (link_status & TXGBE_PCI_LINK_WIDTH) { + case TXGBE_PCI_LINK_WIDTH_1: + hw->bus.width = txgbe_bus_width_pcie_x1; + break; + case TXGBE_PCI_LINK_WIDTH_2: + hw->bus.width = txgbe_bus_width_pcie_x2; + break; + case TXGBE_PCI_LINK_WIDTH_4: + hw->bus.width = txgbe_bus_width_pcie_x4; + break; + case TXGBE_PCI_LINK_WIDTH_8: + hw->bus.width = txgbe_bus_width_pcie_x8; + break; + default: + hw->bus.width = txgbe_bus_width_unknown; + break; + } + + switch (link_status & TXGBE_PCI_LINK_SPEED) { + case TXGBE_PCI_LINK_SPEED_2500: + hw->bus.speed = txgbe_bus_speed_2500; + break; + case TXGBE_PCI_LINK_SPEED_5000: + hw->bus.speed = txgbe_bus_speed_5000; + break; + case TXGBE_PCI_LINK_SPEED_8000: + hw->bus.speed = txgbe_bus_speed_8000; + break; + default: + hw->bus.speed = txgbe_bus_speed_unknown; + break; + } + +} + +/** + * txgbe_get_bus_info - Generic set PCI bus info + * @hw: pointer to hardware structure + * + * Gets the PCI bus info (speed, width, type) then calls helper function to + * store this data within the txgbe_hw structure. + **/ +s32 txgbe_get_bus_info(struct txgbe_hw *hw) +{ + u16 link_status; + + DEBUGFUNC("\n"); + + /* Get the negotiated link width and speed from PCI config space */ + link_status = txgbe_read_pci_cfg_word(hw, TXGBE_PCI_LINK_STATUS); + + txgbe_set_pci_config_data(hw, link_status); + + return 0; +} + +/** + * txgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices + * @hw: pointer to the HW structure + * + * Determines the LAN function id by reading memory-mapped registers + * and swaps the port value if requested. + **/ +void txgbe_set_lan_id_multi_port_pcie(struct txgbe_hw *hw) +{ + struct txgbe_bus_info *bus = &hw->bus; + u32 reg; + + DEBUGFUNC("\n"); + + reg = rd32(hw, TXGBE_CFG_PORT_ST); + bus->lan_id = TXGBE_CFG_PORT_ST_LAN_ID(reg); + + /* check for a port swap */ + reg = rd32(hw, TXGBE_MIS_PWR); + if (TXGBE_MIS_PWR_LAN_ID_1 == TXGBE_MIS_PWR_LAN_ID(reg)) + bus->func = 0; + else + bus->func = bus->lan_id; +} + +/** + * txgbe_stop_adapter - Generic stop Tx/Rx units + * @hw: pointer to hardware structure + * + * Sets the adapter_stopped flag within txgbe_hw struct. Clears interrupts, + * disables transmit and receive units. The adapter_stopped flag is used by + * the shared code and drivers to determine if the adapter is in a stopped + * state and should not touch the hardware. + **/ +s32 txgbe_stop_adapter(struct txgbe_hw *hw) +{ + u16 i; + + DEBUGFUNC("\n"); + + /* + * Set the adapter_stopped flag so other driver functions stop touching + * the hardware + */ + hw->adapter_stopped = true; + + /* Disable the receive unit */ + TCALL(hw, mac.ops.disable_rx); + + /* Set interrupt mask to stop interrupts from being generated */ + txgbe_intr_disable(hw, TXGBE_INTR_ALL); + + /* Clear any pending interrupts, flush previous writes */ + wr32(hw, TXGBE_PX_MISC_IC, 0xffffffff); + wr32(hw, TXGBE_BME_CTL, 0x3); + + /* Disable the transmit unit. Each queue must be disabled. */ + for (i = 0; i < hw->mac.max_tx_queues; i++) { + wr32m(hw, TXGBE_PX_TR_CFG(i), + TXGBE_PX_TR_CFG_SWFLSH | TXGBE_PX_TR_CFG_ENABLE, + TXGBE_PX_TR_CFG_SWFLSH); + } + + /* Disable the receive unit by stopping each queue */ + for (i = 0; i < hw->mac.max_rx_queues; i++) { + wr32m(hw, TXGBE_PX_RR_CFG(i), + TXGBE_PX_RR_CFG_RR_EN, 0); + } + + /* flush all queues disables */ + TXGBE_WRITE_FLUSH(hw); + + /* + * Prevent the PCI-E bus from hanging by disabling PCI-E master + * access and verify no pending requests + */ + return txgbe_disable_pcie_master(hw); +} + +/** + * txgbe_led_on - Turns on the software controllable LEDs. + * @hw: pointer to hardware structure + * @index: led number to turn on + **/ +s32 txgbe_led_on(struct txgbe_hw *hw, u32 index) +{ + u32 led_reg = rd32(hw, TXGBE_CFG_LED_CTL); + u16 value = 0; + DEBUGFUNC("\n"); + + if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_XAUI) { + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF021, &value); + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF021, value | 0x3); + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF022, &value); + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF022, value | 0x3); + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF023, &value); + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF023, value | 0x3); + } + /* To turn on the LED, set mode to ON. */ + led_reg |= index | (index << TXGBE_CFG_LED_CTL_LINK_OD_SHIFT); + wr32(hw, TXGBE_CFG_LED_CTL, led_reg); + TXGBE_WRITE_FLUSH(hw); + + return 0; +} + +/** + * txgbe_led_off - Turns off the software controllable LEDs. + * @hw: pointer to hardware structure + * @index: led number to turn off + **/ +s32 txgbe_led_off(struct txgbe_hw *hw, u32 index) +{ + u32 led_reg = rd32(hw, TXGBE_CFG_LED_CTL); + u16 value = 0; + DEBUGFUNC("\n"); + + if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_XAUI) { + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF021, &value); + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF021, value & 0xFFFC); + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF022, &value); + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF022, value & 0xFFFC); + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF023, &value); + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xF023, value & 0xFFFC); + } + + /* To turn off the LED, set mode to OFF. */ + led_reg &= ~(index << TXGBE_CFG_LED_CTL_LINK_OD_SHIFT); + led_reg |= index; + wr32(hw, TXGBE_CFG_LED_CTL, led_reg); + TXGBE_WRITE_FLUSH(hw); + return 0; +} + +/** + * txgbe_get_eeprom_semaphore - Get hardware semaphore + * @hw: pointer to hardware structure + * + * Sets the hardware semaphores so EEPROM access can occur for bit-bang method + **/ +STATIC s32 txgbe_get_eeprom_semaphore(struct txgbe_hw *hw) +{ + s32 status = TXGBE_ERR_EEPROM; + u32 timeout = 2000; + u32 i; + u32 swsm; + + /* Get SMBI software semaphore between device drivers first */ + for (i = 0; i < timeout; i++) { + /* + * If the SMBI bit is 0 when we read it, then the bit will be + * set and we have the semaphore + */ + swsm = rd32(hw, TXGBE_MIS_SWSM); + if (!(swsm & TXGBE_MIS_SWSM_SMBI)) { + status = 0; + break; + } + usec_delay(50); + } + + if (i == timeout) { + DEBUGOUT("Driver can't access the Eeprom - SMBI Semaphore " + "not granted.\n"); + /* + * this release is particularly important because our attempts + * above to get the semaphore may have succeeded, and if there + * was a timeout, we should unconditionally clear the semaphore + * bits to free the driver to make progress + */ + txgbe_release_eeprom_semaphore(hw); + + usec_delay(50); + /* + * one last try + * If the SMBI bit is 0 when we read it, then the bit will be + * set and we have the semaphore + */ + swsm = rd32(hw, TXGBE_MIS_SWSM); + if (!(swsm & TXGBE_MIS_SWSM_SMBI)) + status = 0; + } + + /* Now get the semaphore between SW/FW through the SWESMBI bit */ + if (status == 0) { + for (i = 0; i < timeout; i++) { + if (txgbe_check_mng_access(hw)) { + /* Set the SW EEPROM semaphore bit to request access */ + wr32m(hw, TXGBE_MNG_SW_SM, + TXGBE_MNG_SW_SM_SM, TXGBE_MNG_SW_SM_SM); + + /* + * If we set the bit successfully then we got + * semaphore. + */ + swsm = rd32(hw, TXGBE_MNG_SW_SM); + if (swsm & TXGBE_MNG_SW_SM_SM) + break; + } + usec_delay(50); + } + + /* + * Release semaphores and return error if SW EEPROM semaphore + * was not granted because we don't have access to the EEPROM + */ + if (i >= timeout) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "SWESMBI Software EEPROM semaphore not granted.\n"); + txgbe_release_eeprom_semaphore(hw); + status = TXGBE_ERR_EEPROM; + } + } else { + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "Software semaphore SMBI between device drivers " + "not granted.\n"); + } + + return status; +} + +/** + * txgbe_release_eeprom_semaphore - Release hardware semaphore + * @hw: pointer to hardware structure + * + * This function clears hardware semaphore bits. + **/ +STATIC void txgbe_release_eeprom_semaphore(struct txgbe_hw *hw) +{ + if (txgbe_check_mng_access(hw)) { + wr32m(hw, TXGBE_MNG_SW_SM, + TXGBE_MNG_SW_SM_SM, 0); + wr32m(hw, TXGBE_MIS_SWSM, + TXGBE_MIS_SWSM_SMBI, 0); + TXGBE_WRITE_FLUSH(hw); + } +} + +/** + * txgbe_validate_mac_addr - Validate MAC address + * @mac_addr: pointer to MAC address. + * + * Tests a MAC address to ensure it is a valid Individual Address + **/ +s32 txgbe_validate_mac_addr(u8 *mac_addr) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + /* Make sure it is not a multicast address */ + if (TXGBE_IS_MULTICAST(mac_addr)) { + DEBUGOUT("MAC address is multicast\n"); + status = TXGBE_ERR_INVALID_MAC_ADDR; + /* Not a broadcast address */ + } else if (TXGBE_IS_BROADCAST(mac_addr)) { + DEBUGOUT("MAC address is broadcast\n"); + status = TXGBE_ERR_INVALID_MAC_ADDR; + /* Reject the zero address */ + } else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 && + mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0) { + DEBUGOUT("MAC address is all zeros\n"); + status = TXGBE_ERR_INVALID_MAC_ADDR; + } + return status; +} + +/** + * txgbe_set_rar - Set Rx address register + * @hw: pointer to hardware structure + * @index: Receive address register to write + * @addr: Address to put into receive address register + * @vmdq: VMDq "set" or "pool" index + * @enable_addr: set flag that address is active + * + * Puts an ethernet address into a receive address register. + **/ +s32 txgbe_set_rar(struct txgbe_hw *hw, u32 index, u8 *addr, u64 pools, + u32 enable_addr) +{ + u32 rar_low, rar_high; + u32 rar_entries = hw->mac.num_rar_entries; + + DEBUGFUNC("\n"); + + /* Make sure we are using a valid rar index range */ + if (index >= rar_entries) { + ERROR_REPORT2(TXGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", index); + return TXGBE_ERR_INVALID_ARGUMENT; + } + + /* select the MAC address */ + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, index); + + /* setup VMDq pool mapping */ + wr32(hw, TXGBE_PSR_MAC_SWC_VM_L, pools & 0xFFFFFFFF); + wr32(hw, TXGBE_PSR_MAC_SWC_VM_H, pools >> 32); + + /* + * HW expects these in little endian so we reverse the byte + * order from network order (big endian) to little endian + * + * Some parts put the VMDq setting in the extra RAH bits, + * so save everything except the lower 16 bits that hold part + * of the address and the address valid bit. + */ + rar_low = ((u32)addr[5] | + ((u32)addr[4] << 8) | + ((u32)addr[3] << 16) | + ((u32)addr[2] << 24)); + rar_high = ((u32)addr[1] | + ((u32)addr[0] << 8)); + if (enable_addr != 0) + rar_high |= TXGBE_PSR_MAC_SWC_AD_H_AV; + + wr32(hw, TXGBE_PSR_MAC_SWC_AD_L, rar_low); + wr32m(hw, TXGBE_PSR_MAC_SWC_AD_H, + (TXGBE_PSR_MAC_SWC_AD_H_AD(~0) | + TXGBE_PSR_MAC_SWC_AD_H_ADTYPE(~0) | + TXGBE_PSR_MAC_SWC_AD_H_AV), + rar_high); + + return 0; +} + +/** + * txgbe_clear_rar - Remove Rx address register + * @hw: pointer to hardware structure + * @index: Receive address register to write + * + * Clears an ethernet address from a receive address register. + **/ +s32 txgbe_clear_rar(struct txgbe_hw *hw, u32 index) +{ + u32 rar_entries = hw->mac.num_rar_entries; + + DEBUGFUNC("\n"); + + /* Make sure we are using a valid rar index range */ + if (index >= rar_entries) { + ERROR_REPORT2(TXGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", index); + return TXGBE_ERR_INVALID_ARGUMENT; + } + + /* + * Some parts put the VMDq setting in the extra RAH bits, + * so save everything except the lower 16 bits that hold part + * of the address and the address valid bit. + */ + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, index); + + wr32(hw, TXGBE_PSR_MAC_SWC_VM_L, 0); + wr32(hw, TXGBE_PSR_MAC_SWC_VM_H, 0); + + wr32(hw, TXGBE_PSR_MAC_SWC_AD_L, 0); + wr32m(hw, TXGBE_PSR_MAC_SWC_AD_H, + (TXGBE_PSR_MAC_SWC_AD_H_AD(~0) | + TXGBE_PSR_MAC_SWC_AD_H_ADTYPE(~0) | + TXGBE_PSR_MAC_SWC_AD_H_AV), + 0); + + return 0; +} + +/** + * txgbe_init_rx_addrs - Initializes receive address filters. + * @hw: pointer to hardware structure + * + * Places the MAC address in receive address register 0 and clears the rest + * of the receive address registers. Clears the multicast table. Assumes + * the receiver is in reset when the routine is called. + **/ +s32 txgbe_init_rx_addrs(struct txgbe_hw *hw) +{ + u32 i; + u32 rar_entries = hw->mac.num_rar_entries; + u32 psrctl; + + DEBUGFUNC("\n"); + + /* + * If the current mac address is valid, assume it is a software override + * to the permanent address. + * Otherwise, use the permanent address from the eeprom. + */ + if (txgbe_validate_mac_addr(hw->mac.addr) == + TXGBE_ERR_INVALID_MAC_ADDR) { + /* Get the MAC address from the RAR0 for later reference */ + TCALL(hw, mac.ops.get_mac_addr, hw->mac.addr); + + DEBUGOUT3(" Keeping Current RAR0 Addr =%.2X %.2X %.2X %.2X %.2X %.2X\n", + hw->mac.addr[0], hw->mac.addr[1], + hw->mac.addr[2], hw->mac.addr[3], + hw->mac.addr[4], hw->mac.addr[5]); + } else { + /* Setup the receive address. */ + DEBUGOUT("Overriding MAC Address in RAR[0]\n"); + DEBUGOUT3(" New MAC Addr =%.2X %.2X %.2X %.2X %.2X %.2X\n", + hw->mac.addr[0], hw->mac.addr[1], + hw->mac.addr[2], hw->mac.addr[3], + hw->mac.addr[4], hw->mac.addr[5]); + + TCALL(hw, mac.ops.set_rar, 0, hw->mac.addr, 0, + TXGBE_PSR_MAC_SWC_AD_H_AV); + + /* clear VMDq pool/queue selection for RAR 0 */ + TCALL(hw, mac.ops.clear_vmdq, 0, TXGBE_CLEAR_VMDQ_ALL); + } + hw->addr_ctrl.overflow_promisc = 0; + + hw->addr_ctrl.rar_used_count = 1; + + /* Zero out the other receive addresses. */ + DEBUGOUT1("Clearing RAR[1-%d]\n", rar_entries - 1); + for (i = 1; i < rar_entries; i++) { + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, i); + wr32(hw, TXGBE_PSR_MAC_SWC_AD_L, 0); + wr32(hw, TXGBE_PSR_MAC_SWC_AD_H, 0); + } + + /* Clear the MTA */ + hw->addr_ctrl.mta_in_use = 0; + psrctl = rd32(hw, TXGBE_PSR_CTL); + psrctl &= ~(TXGBE_PSR_CTL_MO | TXGBE_PSR_CTL_MFE); + psrctl |= hw->mac.mc_filter_type << TXGBE_PSR_CTL_MO_SHIFT; + wr32(hw, TXGBE_PSR_CTL, psrctl); + DEBUGOUT(" Clearing MTA\n"); + for (i = 0; i < hw->mac.mcft_size; i++) + wr32(hw, TXGBE_PSR_MC_TBL(i), 0); + + TCALL(hw, mac.ops.init_uta_tables); + + return 0; +} + +/** + * txgbe_add_uc_addr - Adds a secondary unicast address. + * @hw: pointer to hardware structure + * @addr: new address + * + * Adds it to unused receive address register or goes into promiscuous mode. + **/ +void txgbe_add_uc_addr(struct txgbe_hw *hw, u8 *addr, u32 vmdq) +{ + u32 rar_entries = hw->mac.num_rar_entries; + u32 rar; + + DEBUGFUNC("\n"); + + DEBUGOUT6(" UC Addr = %.2X %.2X %.2X %.2X %.2X %.2X\n", + addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); + + /* + * Place this address in the RAR if there is room, + * else put the controller into promiscuous mode + */ + if (hw->addr_ctrl.rar_used_count < rar_entries) { + rar = hw->addr_ctrl.rar_used_count; + TCALL(hw, mac.ops.set_rar, rar, addr, vmdq, + TXGBE_PSR_MAC_SWC_AD_H_AV); + DEBUGOUT1("Added a secondary address to RAR[%d]\n", rar); + hw->addr_ctrl.rar_used_count++; + } else { + hw->addr_ctrl.overflow_promisc++; + } + + DEBUGOUT("txgbe_add_uc_addr Complete\n"); +} + +/** + * txgbe_update_uc_addr_list - Updates MAC list of secondary addresses + * @hw: pointer to hardware structure + * @addr_list: the list of new addresses + * @addr_count: number of addresses + * @next: iterator function to walk the address list + * + * The given list replaces any existing list. Clears the secondary addrs from + * receive address registers. Uses unused receive address registers for the + * first secondary addresses, and falls back to promiscuous mode as needed. + * + * Drivers using secondary unicast addresses must set user_set_promisc when + * manually putting the device into promiscuous mode. + **/ +s32 txgbe_update_uc_addr_list(struct txgbe_hw *hw, u8 *addr_list, + u32 addr_count, txgbe_mc_addr_itr next) +{ + u8 *addr; + u32 i; + u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc; + u32 uc_addr_in_use; + u32 vmdq; + + DEBUGFUNC("\n"); + + /* + * Clear accounting of old secondary address list, + * don't count RAR[0] + */ + uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1; + hw->addr_ctrl.rar_used_count -= uc_addr_in_use; + hw->addr_ctrl.overflow_promisc = 0; + + /* Zero out the other receive addresses */ + DEBUGOUT1("Clearing RAR[1-%d]\n", uc_addr_in_use+1); + for (i = 0; i < uc_addr_in_use; i++) { + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, 1+i); + wr32(hw, TXGBE_PSR_MAC_SWC_AD_L, 0); + wr32(hw, TXGBE_PSR_MAC_SWC_AD_H, 0); + } + + /* Add the new addresses */ + for (i = 0; i < addr_count; i++) { + DEBUGOUT(" Adding the secondary addresses:\n"); + addr = next(hw, &addr_list, &vmdq); + txgbe_add_uc_addr(hw, addr, vmdq); + } + + if (hw->addr_ctrl.overflow_promisc) { + /* enable promisc if not already in overflow or set by user */ + if (!old_promisc_setting && !hw->addr_ctrl.user_set_promisc) { + DEBUGOUT(" Entering address overflow promisc mode\n"); + wr32m(hw, TXGBE_PSR_CTL, + TXGBE_PSR_CTL_UPE, TXGBE_PSR_CTL_UPE); + } + } else { + /* only disable if set by overflow, not by user */ + if (old_promisc_setting && !hw->addr_ctrl.user_set_promisc) { + DEBUGOUT(" Leaving address overflow promisc mode\n"); + wr32m(hw, TXGBE_PSR_CTL, + TXGBE_PSR_CTL_UPE, 0); + } + } + + DEBUGOUT("txgbe_update_uc_addr_list Complete\n"); + return 0; +} + +/** + * txgbe_mta_vector - Determines bit-vector in multicast table to set + * @hw: pointer to hardware structure + * @mc_addr: the multicast address + * + * Extracts the 12 bits, from a multicast address, to determine which + * bit-vector to set in the multicast table. The hardware uses 12 bits, from + * incoming rx multicast addresses, to determine the bit-vector to check in + * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set + * by the MO field of the MCSTCTRL. The MO field is set during initialization + * to mc_filter_type. + **/ +STATIC s32 txgbe_mta_vector(struct txgbe_hw *hw, u8 *mc_addr) +{ + u32 vector = 0; + + DEBUGFUNC("\n"); + + switch (hw->mac.mc_filter_type) { + case 0: /* use bits [47:36] of the address */ + vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); + break; + case 1: /* use bits [46:35] of the address */ + vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5)); + break; + case 2: /* use bits [45:34] of the address */ + vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); + break; + case 3: /* use bits [43:32] of the address */ + vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8)); + break; + default: /* Invalid mc_filter_type */ + DEBUGOUT("MC filter type param set incorrectly\n"); + ASSERT(0); + break; + } + + /* vector can only be 12-bits or boundary will be exceeded */ + vector &= 0xFFF; + return vector; +} + +/** + * txgbe_set_mta - Set bit-vector in multicast table + * @hw: pointer to hardware structure + * @hash_value: Multicast address hash value + * + * Sets the bit-vector in the multicast table. + **/ +void txgbe_set_mta(struct txgbe_hw *hw, u8 *mc_addr) +{ + u32 vector; + u32 vector_bit; + u32 vector_reg; + + DEBUGFUNC("\n"); + + hw->addr_ctrl.mta_in_use++; + + vector = txgbe_mta_vector(hw, mc_addr); + DEBUGOUT1(" bit-vector = 0x%03X\n", vector); + + /* + * The MTA is a register array of 128 32-bit registers. It is treated + * like an array of 4096 bits. We want to set bit + * BitArray[vector_value]. So we figure out what register the bit is + * in, read it, OR in the new bit, then write back the new value. The + * register is determined by the upper 7 bits of the vector value and + * the bit within that register are determined by the lower 5 bits of + * the value. + */ + vector_reg = (vector >> 5) & 0x7F; + vector_bit = vector & 0x1F; + hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit); +} + +/** + * txgbe_update_mc_addr_list - Updates MAC list of multicast addresses + * @hw: pointer to hardware structure + * @mc_addr_list: the list of new multicast addresses + * @mc_addr_count: number of addresses + * @next: iterator function to walk the multicast address list + * @clear: flag, when set clears the table beforehand + * + * When the clear flag is set, the given list replaces any existing list. + * Hashes the given addresses into the multicast table. + **/ +s32 txgbe_update_mc_addr_list(struct txgbe_hw *hw, u8 *mc_addr_list, + u32 mc_addr_count, txgbe_mc_addr_itr next, + bool clear) +{ + u32 i; + u32 vmdq; + u32 psrctl; + + DEBUGFUNC("\n"); + + /* + * Set the new number of MC addresses that we are being requested to + * use. + */ + hw->addr_ctrl.num_mc_addrs = mc_addr_count; + hw->addr_ctrl.mta_in_use = 0; + + /* Clear mta_shadow */ + if (clear) { + DEBUGOUT(" Clearing MTA\n"); + memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow)); + } + + /* Update mta_shadow */ + for (i = 0; i < mc_addr_count; i++) { + DEBUGOUT(" Adding the multicast addresses:\n"); + txgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq)); + } + + /* Enable mta */ + for (i = 0; i < hw->mac.mcft_size; i++) + wr32a(hw, TXGBE_PSR_MC_TBL(0), i, + hw->mac.mta_shadow[i]); + + if (hw->addr_ctrl.mta_in_use > 0) { + psrctl = rd32(hw, TXGBE_PSR_CTL); + psrctl &= ~(TXGBE_PSR_CTL_MO | TXGBE_PSR_CTL_MFE); + psrctl |= TXGBE_PSR_CTL_MFE | + (hw->mac.mc_filter_type << TXGBE_PSR_CTL_MO_SHIFT); + wr32(hw, TXGBE_PSR_CTL, psrctl); + } + + DEBUGOUT("txgbe_update_mc_addr_list Complete\n"); + return 0; +} + +/** + * txgbe_enable_mc - Enable multicast address in RAR + * @hw: pointer to hardware structure + * + * Enables multicast address in RAR and the use of the multicast hash table. + **/ +s32 txgbe_enable_mc(struct txgbe_hw *hw) +{ + struct txgbe_addr_filter_info *a = &hw->addr_ctrl; + u32 psrctl; + + DEBUGFUNC("\n"); + + if (a->mta_in_use > 0) { + psrctl = rd32(hw, TXGBE_PSR_CTL); + psrctl &= ~(TXGBE_PSR_CTL_MO | TXGBE_PSR_CTL_MFE); + psrctl |= TXGBE_PSR_CTL_MFE | + (hw->mac.mc_filter_type << TXGBE_PSR_CTL_MO_SHIFT); + wr32(hw, TXGBE_PSR_CTL, psrctl); + } + + return 0; +} + +/** + * txgbe_disable_mc - Disable multicast address in RAR + * @hw: pointer to hardware structure + * + * Disables multicast address in RAR and the use of the multicast hash table. + **/ +s32 txgbe_disable_mc(struct txgbe_hw *hw) +{ + struct txgbe_addr_filter_info *a = &hw->addr_ctrl; + u32 psrctl; + DEBUGFUNC("\n"); + + if (a->mta_in_use > 0) { + psrctl = rd32(hw, TXGBE_PSR_CTL); + psrctl &= ~(TXGBE_PSR_CTL_MO | TXGBE_PSR_CTL_MFE); + psrctl |= hw->mac.mc_filter_type << TXGBE_PSR_CTL_MO_SHIFT; + wr32(hw, TXGBE_PSR_CTL, psrctl); + } + + return 0; +} + +/** + * txgbe_fc_enable - Enable flow control + * @hw: pointer to hardware structure + * + * Enable flow control according to the current settings. + **/ +s32 txgbe_fc_enable(struct txgbe_hw *hw) +{ + s32 ret_val = 0; + u32 mflcn_reg, fccfg_reg; + u32 reg; + u32 fcrtl, fcrth; + int i; + + DEBUGFUNC("\n"); + + /* Validate the water mark configuration */ + if (!hw->fc.pause_time) { + ret_val = TXGBE_ERR_INVALID_LINK_SETTINGS; + goto out; + } + + /* Low water mark of zero causes XOFF floods */ + for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) { + if ((hw->fc.current_mode & txgbe_fc_tx_pause) && + hw->fc.high_water[i]) { + if (!hw->fc.low_water[i] || + hw->fc.low_water[i] >= hw->fc.high_water[i]) { + DEBUGOUT("Invalid water mark configuration\n"); + ret_val = TXGBE_ERR_INVALID_LINK_SETTINGS; + goto out; + } + } + } + + /* Negotiate the fc mode to use */ + txgbe_fc_autoneg(hw); + + /* Disable any previous flow control settings */ + mflcn_reg = rd32(hw, TXGBE_MAC_RX_FLOW_CTRL); + mflcn_reg &= ~(TXGBE_MAC_RX_FLOW_CTRL_PFCE | + TXGBE_MAC_RX_FLOW_CTRL_RFE); + + fccfg_reg = rd32(hw, TXGBE_RDB_RFCC); + fccfg_reg &= ~(TXGBE_RDB_RFCC_RFCE_802_3X | + TXGBE_RDB_RFCC_RFCE_PRIORITY); + + /* + * The possible values of fc.current_mode are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames, + * but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames but + * we do not support receiving pause frames). + * 3: Both Rx and Tx flow control (symmetric) are enabled. + * other: Invalid. + */ + switch (hw->fc.current_mode) { + case txgbe_fc_none: + /* + * Flow control is disabled by software override or autoneg. + * The code below will actually disable it in the HW. + */ + break; + case txgbe_fc_rx_pause: + /* + * Rx Flow control is enabled and Tx Flow control is + * disabled by software override. Since there really + * isn't a way to advertise that we are capable of RX + * Pause ONLY, we will advertise that we support both + * symmetric and asymmetric Rx PAUSE. Later, we will + * disable the adapter's ability to send PAUSE frames. + */ + mflcn_reg |= TXGBE_MAC_RX_FLOW_CTRL_RFE; + break; + case txgbe_fc_tx_pause: + /* + * Tx Flow control is enabled, and Rx Flow control is + * disabled by software override. + */ + fccfg_reg |= TXGBE_RDB_RFCC_RFCE_802_3X; + break; + case txgbe_fc_full: + /* Flow control (both Rx and Tx) is enabled by SW override. */ + mflcn_reg |= TXGBE_MAC_RX_FLOW_CTRL_RFE; + fccfg_reg |= TXGBE_RDB_RFCC_RFCE_802_3X; + break; + default: + ERROR_REPORT1(TXGBE_ERROR_ARGUMENT, + "Flow control param set incorrectly\n"); + ret_val = TXGBE_ERR_CONFIG; + goto out; + break; + } + + /* Set 802.3x based flow control settings. */ + wr32(hw, TXGBE_MAC_RX_FLOW_CTRL, mflcn_reg); + wr32(hw, TXGBE_RDB_RFCC, fccfg_reg); + + /* Set up and enable Rx high/low water mark thresholds, enable XON. */ + for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) { + if ((hw->fc.current_mode & txgbe_fc_tx_pause) && + hw->fc.high_water[i]) { + fcrtl = (hw->fc.low_water[i] << 10) | + TXGBE_RDB_RFCL_XONE; + wr32(hw, TXGBE_RDB_RFCL(i), fcrtl); + fcrth = (hw->fc.high_water[i] << 10) | + TXGBE_RDB_RFCH_XOFFE; + } else { + wr32(hw, TXGBE_RDB_RFCL(i), 0); + /* + * In order to prevent Tx hangs when the internal Tx + * switch is enabled we must set the high water mark + * to the Rx packet buffer size - 24KB. This allows + * the Tx switch to function even under heavy Rx + * workloads. + */ + fcrth = rd32(hw, TXGBE_RDB_PB_SZ(i)) - 24576; + } + + wr32(hw, TXGBE_RDB_RFCH(i), fcrth); + } + + /* Configure pause time (2 TCs per register) */ + reg = hw->fc.pause_time * 0x00010001; + for (i = 0; i < (TXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++) + wr32(hw, TXGBE_RDB_RFCV(i), reg); + + /* Configure flow control refresh threshold value */ + wr32(hw, TXGBE_RDB_RFCRT, hw->fc.pause_time / 2); + +out: + return ret_val; +} + +/** + * txgbe_negotiate_fc - Negotiate flow control + * @hw: pointer to hardware structure + * @adv_reg: flow control advertised settings + * @lp_reg: link partner's flow control settings + * @adv_sym: symmetric pause bit in advertisement + * @adv_asm: asymmetric pause bit in advertisement + * @lp_sym: symmetric pause bit in link partner advertisement + * @lp_asm: asymmetric pause bit in link partner advertisement + * + * Find the intersection between advertised settings and link partner's + * advertised settings + **/ +STATIC s32 txgbe_negotiate_fc(struct txgbe_hw *hw, u32 adv_reg, u32 lp_reg, + u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm) +{ + if ((!(adv_reg)) || (!(lp_reg))) { + ERROR_REPORT3(TXGBE_ERROR_UNSUPPORTED, + "Local or link partner's advertised flow control " + "settings are NULL. Local: %x, link partner: %x\n", + adv_reg, lp_reg); + return TXGBE_ERR_FC_NOT_NEGOTIATED; + } + + if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) { + /* + * Now we need to check if the user selected Rx ONLY + * of pause frames. In this case, we had to advertise + * FULL flow control because we could not advertise RX + * ONLY. Hence, we must now check to see if we need to + * turn OFF the TRANSMISSION of PAUSE frames. + */ + if (hw->fc.requested_mode == txgbe_fc_full) { + hw->fc.current_mode = txgbe_fc_full; + DEBUGOUT("Flow Control = FULL.\n"); + } else { + hw->fc.current_mode = txgbe_fc_rx_pause; + DEBUGOUT("Flow Control=RX PAUSE frames only\n"); + } + } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) && + (lp_reg & lp_sym) && (lp_reg & lp_asm)) { + hw->fc.current_mode = txgbe_fc_tx_pause; + DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); + } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) && + !(lp_reg & lp_sym) && (lp_reg & lp_asm)) { + hw->fc.current_mode = txgbe_fc_rx_pause; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } else { + hw->fc.current_mode = txgbe_fc_none; + DEBUGOUT("Flow Control = NONE.\n"); + } + return 0; +} + +/** + * txgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber + * @hw: pointer to hardware structure + * + * Enable flow control according on 1 gig fiber. + **/ +STATIC s32 txgbe_fc_autoneg_fiber(struct txgbe_hw *hw) +{ + u32 pcs_anadv_reg, pcs_lpab_reg; + s32 ret_val = TXGBE_ERR_FC_NOT_NEGOTIATED; + + pcs_anadv_reg = txgbe_rd32_epcs(hw, TXGBE_SR_MII_MMD_AN_ADV); + pcs_lpab_reg = txgbe_rd32_epcs(hw, TXGBE_SR_MII_MMD_LP_BABL); + + ret_val = txgbe_negotiate_fc(hw, pcs_anadv_reg, + pcs_lpab_reg, + TXGBE_SR_MII_MMD_AN_ADV_PAUSE_SYM, + TXGBE_SR_MII_MMD_AN_ADV_PAUSE_ASM, + TXGBE_SR_MII_MMD_AN_ADV_PAUSE_SYM, + TXGBE_SR_MII_MMD_AN_ADV_PAUSE_ASM); + + return ret_val; +} + +/** + * txgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37 + * @hw: pointer to hardware structure + * + * Enable flow control according to IEEE clause 37. + **/ +STATIC s32 txgbe_fc_autoneg_backplane(struct txgbe_hw *hw) +{ + u32 anlp1_reg, autoc_reg; + s32 ret_val = TXGBE_ERR_FC_NOT_NEGOTIATED; + + /* + * Read the 10g AN autoc and LP ability registers and resolve + * local flow control settings accordingly + */ + autoc_reg = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_ADV_REG1); + anlp1_reg = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_LP_ABL1); + + ret_val = txgbe_negotiate_fc(hw, autoc_reg, + anlp1_reg, TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM, + TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM, + TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM, + TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM); + + return ret_val; +} + +/** + * txgbe_fc_autoneg_copper - Enable flow control IEEE clause 37 + * @hw: pointer to hardware structure + * + * Enable flow control according to IEEE clause 37. + **/ +STATIC s32 txgbe_fc_autoneg_copper(struct txgbe_hw *hw) +{ + u8 technology_ability_reg = 0; + u8 lp_technology_ability_reg = 0; + + txgbe_get_phy_advertised_pause(hw, &technology_ability_reg); + txgbe_get_lp_advertised_pause(hw, &lp_technology_ability_reg); + + return txgbe_negotiate_fc(hw, (u32)technology_ability_reg, + (u32)lp_technology_ability_reg, + TXGBE_TAF_SYM_PAUSE, TXGBE_TAF_ASM_PAUSE, + TXGBE_TAF_SYM_PAUSE, TXGBE_TAF_ASM_PAUSE); +} + +/** + * txgbe_fc_autoneg - Configure flow control + * @hw: pointer to hardware structure + * + * Compares our advertised flow control capabilities to those advertised by + * our link partner, and determines the proper flow control mode to use. + **/ +void txgbe_fc_autoneg(struct txgbe_hw *hw) +{ + s32 ret_val = TXGBE_ERR_FC_NOT_NEGOTIATED; + u32 speed; + bool link_up; + + DEBUGFUNC("\n"); + + /* + * AN should have completed when the cable was plugged in. + * Look for reasons to bail out. Bail out if: + * - FC autoneg is disabled, or if + * - link is not up. + */ + if (hw->fc.disable_fc_autoneg) { + ERROR_REPORT1(TXGBE_ERROR_UNSUPPORTED, + "Flow control autoneg is disabled"); + goto out; + } + + TCALL(hw, mac.ops.check_link, &speed, &link_up, false); + if (!link_up) { + ERROR_REPORT1(TXGBE_ERROR_SOFTWARE, "The link is down"); + goto out; + } + + switch (hw->phy.media_type) { + /* Autoneg flow control on fiber adapters */ + case txgbe_media_type_fiber: + if (speed == TXGBE_LINK_SPEED_1GB_FULL) + ret_val = txgbe_fc_autoneg_fiber(hw); + break; + + /* Autoneg flow control on backplane adapters */ + case txgbe_media_type_backplane: + ret_val = txgbe_fc_autoneg_backplane(hw); + break; + + /* Autoneg flow control on copper adapters */ + case txgbe_media_type_copper: + if (txgbe_device_supports_autoneg_fc(hw)) + ret_val = txgbe_fc_autoneg_copper(hw); + break; + + default: + break; + } + +out: + if (ret_val == 0) { + hw->fc.fc_was_autonegged = true; + } else { + hw->fc.fc_was_autonegged = false; + hw->fc.current_mode = hw->fc.requested_mode; + } +} + +/** + * txgbe_disable_pcie_master - Disable PCI-express master access + * @hw: pointer to hardware structure + * + * Disables PCI-Express master access and verifies there are no pending + * requests. TXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable + * bit hasn't caused the master requests to be disabled, else 0 + * is returned signifying master requests disabled. + **/ +s32 txgbe_disable_pcie_master(struct txgbe_hw *hw) +{ + s32 status = 0; + u32 i; + struct txgbe_adapter *adapter = hw->back; + unsigned int num_vfs = adapter->num_vfs; + u16 dev_ctl; + u32 vf_bme_clear = 0; + + DEBUGFUNC("\n"); + + /* Always set this bit to ensure any future transactions are blocked */ + pci_clear_master(((struct txgbe_adapter *)hw->back)->pdev); + + /* Exit if master requests are blocked */ + if (!(rd32(hw, TXGBE_PX_TRANSACTION_PENDING)) || + TXGBE_REMOVED(hw->hw_addr)) + goto out; + + /* BME disable handshake will not be finished if any VF BME is 0 */ + for (i = 0; i < num_vfs; i++) { + struct pci_dev *vfdev = adapter->vfinfo[i].vfdev; + if (!vfdev) + continue; + pci_read_config_word(vfdev, 0x4, &dev_ctl); + if ((dev_ctl & 0x4) == 0) { + vf_bme_clear = 1; + break; + } + } + + /* Poll for master request bit to clear */ + for (i = 0; i < TXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) { + usec_delay(100); + if (!(rd32(hw, TXGBE_PX_TRANSACTION_PENDING))) + goto out; + } + + if (!vf_bme_clear) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "PCIe transaction pending bit did not clear.\n"); + status = TXGBE_ERR_MASTER_REQUESTS_PENDING; + } + +out: + return status; +} + + +/** + * txgbe_acquire_swfw_sync - Acquire SWFW semaphore + * @hw: pointer to hardware structure + * @mask: Mask to specify which semaphore to acquire + * + * Acquires the SWFW semaphore through the GSSR register for the specified + * function (CSR, PHY0, PHY1, EEPROM, Flash) + **/ +s32 txgbe_acquire_swfw_sync(struct txgbe_hw *hw, u32 mask) +{ + u32 gssr = 0; + u32 swmask = mask; + u32 fwmask = mask << 16; + u32 timeout = 200; + u32 i; + + for (i = 0; i < timeout; i++) { + /* + * SW NVM semaphore bit is used for access to all + * SW_FW_SYNC bits (not just NVM) + */ + if (txgbe_get_eeprom_semaphore(hw)) + return TXGBE_ERR_SWFW_SYNC; + + if (txgbe_check_mng_access(hw)) { + gssr = rd32(hw, TXGBE_MNG_SWFW_SYNC); + if (!(gssr & (fwmask | swmask))) { + gssr |= swmask; + wr32(hw, TXGBE_MNG_SWFW_SYNC, gssr); + txgbe_release_eeprom_semaphore(hw); + return 0; + } else { + /* Resource is currently in use by FW or SW */ + txgbe_release_eeprom_semaphore(hw); + msec_delay(5); + } + } + } + + /* If time expired clear the bits holding the lock and retry */ + if (gssr & (fwmask | swmask)) + txgbe_release_swfw_sync(hw, gssr & (fwmask | swmask)); + + msec_delay(5); + return TXGBE_ERR_SWFW_SYNC; +} + +/** + * txgbe_release_swfw_sync - Release SWFW semaphore + * @hw: pointer to hardware structure + * @mask: Mask to specify which semaphore to release + * + * Releases the SWFW semaphore through the GSSR register for the specified + * function (CSR, PHY0, PHY1, EEPROM, Flash) + **/ +void txgbe_release_swfw_sync(struct txgbe_hw *hw, u32 mask) +{ + txgbe_get_eeprom_semaphore(hw); + if (txgbe_check_mng_access(hw)) + wr32m(hw, TXGBE_MNG_SWFW_SYNC, mask, 0); + + txgbe_release_eeprom_semaphore(hw); +} + +/** + * txgbe_disable_sec_rx_path - Stops the receive data path + * @hw: pointer to hardware structure + * + * Stops the receive data path and waits for the HW to internally empty + * the Rx security block + **/ +s32 txgbe_disable_sec_rx_path(struct txgbe_hw *hw) +{ +#define TXGBE_MAX_SECRX_POLL 40 + + int i; + int secrxreg; + + DEBUGFUNC("\n"); + + wr32m(hw, TXGBE_RSC_CTL, + TXGBE_RSC_CTL_RX_DIS, TXGBE_RSC_CTL_RX_DIS); + for (i = 0; i < TXGBE_MAX_SECRX_POLL; i++) { + secrxreg = rd32(hw, TXGBE_RSC_ST); + if (secrxreg & TXGBE_RSC_ST_RSEC_RDY) + break; + else + /* Use interrupt-safe sleep just in case */ + usec_delay(1000); + } + + /* For informational purposes only */ + if (i >= TXGBE_MAX_SECRX_POLL) + DEBUGOUT("Rx unit being enabled before security " + "path fully disabled. Continuing with init.\n"); + + return 0; +} + +/** + * txgbe_enable_sec_rx_path - Enables the receive data path + * @hw: pointer to hardware structure + * + * Enables the receive data path. + **/ +s32 txgbe_enable_sec_rx_path(struct txgbe_hw *hw) +{ + DEBUGFUNC("\n"); + + wr32m(hw, TXGBE_RSC_CTL, + TXGBE_RSC_CTL_RX_DIS, 0); + TXGBE_WRITE_FLUSH(hw); + + return 0; +} + +/** + * txgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM + * @hw: pointer to hardware structure + * @san_mac_offset: SAN MAC address offset + * + * This function will read the EEPROM location for the SAN MAC address + * pointer, and returns the value at that location. This is used in both + * get and set mac_addr routines. + **/ +STATIC s32 txgbe_get_san_mac_addr_offset(struct txgbe_hw *hw, + u16 *san_mac_offset) +{ + s32 ret_val; + + DEBUGFUNC("\n"); + + /* + * First read the EEPROM pointer to see if the MAC addresses are + * available. + */ + ret_val = TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_SAN_MAC_ADDR_PTR, + san_mac_offset); + if (ret_val) { + ERROR_REPORT2(TXGBE_ERROR_INVALID_STATE, + "eeprom at offset %d failed", + TXGBE_SAN_MAC_ADDR_PTR); + } + + return ret_val; +} + +/** + * txgbe_get_san_mac_addr - SAN MAC address retrieval from the EEPROM + * @hw: pointer to hardware structure + * @san_mac_addr: SAN MAC address + * + * Reads the SAN MAC address from the EEPROM, if it's available. This is + * per-port, so set_lan_id() must be called before reading the addresses. + * set_lan_id() is called by identify_sfp(), but this cannot be relied + * upon for non-SFP connections, so we must call it here. + **/ +s32 txgbe_get_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr) +{ + u16 san_mac_data, san_mac_offset; + u8 i; + s32 ret_val; + + DEBUGFUNC("\n"); + + /* + * First read the EEPROM pointer to see if the MAC addresses are + * available. If they're not, no point in calling set_lan_id() here. + */ + ret_val = txgbe_get_san_mac_addr_offset(hw, &san_mac_offset); + if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF) + goto san_mac_addr_out; + + /* apply the port offset to the address offset */ + (hw->bus.func) ? (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT1_OFFSET) : + (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT0_OFFSET); + for (i = 0; i < 3; i++) { + ret_val = TCALL(hw, eeprom.ops.read, san_mac_offset, + &san_mac_data); + if (ret_val) { + ERROR_REPORT2(TXGBE_ERROR_INVALID_STATE, + "eeprom read at offset %d failed", + san_mac_offset); + goto san_mac_addr_out; + } + san_mac_addr[i * 2] = (u8)(san_mac_data); + san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8); + san_mac_offset++; + } + return 0; + +san_mac_addr_out: + /* + * No addresses available in this EEPROM. It's not an + * error though, so just wipe the local address and return. + */ + for (i = 0; i < 6; i++) + san_mac_addr[i] = 0xFF; + return 0; +} + +/** + * txgbe_set_san_mac_addr - Write the SAN MAC address to the EEPROM + * @hw: pointer to hardware structure + * @san_mac_addr: SAN MAC address + * + * Write a SAN MAC address to the EEPROM. + **/ +s32 txgbe_set_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr) +{ + s32 ret_val; + u16 san_mac_data, san_mac_offset; + u8 i; + + DEBUGFUNC("\n"); + + /* Look for SAN mac address pointer. If not defined, return */ + ret_val = txgbe_get_san_mac_addr_offset(hw, &san_mac_offset); + if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF) + return TXGBE_ERR_NO_SAN_ADDR_PTR; + + /* Apply the port offset to the address offset */ + (hw->bus.func) ? (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT1_OFFSET) : + (san_mac_offset += TXGBE_SAN_MAC_ADDR_PORT0_OFFSET); + + for (i = 0; i < 3; i++) { + san_mac_data = (u16)((u16)(san_mac_addr[i * 2 + 1]) << 8); + san_mac_data |= (u16)(san_mac_addr[i * 2]); + TCALL(hw, eeprom.ops.write, san_mac_offset, san_mac_data); + san_mac_offset++; + } + + return 0; +} + +/** + * txgbe_insert_mac_addr - Find a RAR for this mac address + * @hw: pointer to hardware structure + * @addr: Address to put into receive address register + * @vmdq: VMDq pool to assign + * + * Puts an ethernet address into a receive address register, or + * finds the rar that it is aleady in; adds to the pool list + **/ +s32 txgbe_insert_mac_addr(struct txgbe_hw *hw, u8 *addr, u32 vmdq) +{ + static const u32 NO_EMPTY_RAR_FOUND = 0xFFFFFFFF; + u32 first_empty_rar = NO_EMPTY_RAR_FOUND; + u32 rar; + u32 rar_low, rar_high; + u32 addr_low, addr_high; + + DEBUGFUNC("\n"); + + /* swap bytes for HW little endian */ + addr_low = addr[5] | (addr[4] << 8) + | (addr[3] << 16) + | (addr[2] << 24); + addr_high = addr[1] | (addr[0] << 8); + + /* + * Either find the mac_id in rar or find the first empty space. + * rar_highwater points to just after the highest currently used + * rar in order to shorten the search. It grows when we add a new + * rar to the top. + */ + for (rar = 0; rar < hw->mac.rar_highwater; rar++) { + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, rar); + rar_high = rd32(hw, TXGBE_PSR_MAC_SWC_AD_H); + + if (((TXGBE_PSR_MAC_SWC_AD_H_AV & rar_high) == 0) + && first_empty_rar == NO_EMPTY_RAR_FOUND) { + first_empty_rar = rar; + } else if ((rar_high & 0xFFFF) == addr_high) { + rar_low = rd32(hw, TXGBE_PSR_MAC_SWC_AD_L); + if (rar_low == addr_low) + break; /* found it already in the rars */ + } + } + + if (rar < hw->mac.rar_highwater) { + /* already there so just add to the pool bits */ + TCALL(hw, mac.ops.set_vmdq, rar, vmdq); + } else if (first_empty_rar != NO_EMPTY_RAR_FOUND) { + /* stick it into first empty RAR slot we found */ + rar = first_empty_rar; + TCALL(hw, mac.ops.set_rar, rar, addr, vmdq, + TXGBE_PSR_MAC_SWC_AD_H_AV); + } else if (rar == hw->mac.rar_highwater) { + /* add it to the top of the list and inc the highwater mark */ + TCALL(hw, mac.ops.set_rar, rar, addr, vmdq, + TXGBE_PSR_MAC_SWC_AD_H_AV); + hw->mac.rar_highwater++; + } else if (rar >= hw->mac.num_rar_entries) { + return TXGBE_ERR_INVALID_MAC_ADDR; + } + + /* + * If we found rar[0], make sure the default pool bit (we use pool 0) + * remains cleared to be sure default pool packets will get delivered + */ + if (rar == 0) + TCALL(hw, mac.ops.clear_vmdq, rar, 0); + + return rar; +} + +/** + * txgbe_clear_vmdq - Disassociate a VMDq pool index from a rx address + * @hw: pointer to hardware struct + * @rar: receive address register index to disassociate + * @vmdq: VMDq pool index to remove from the rar + **/ +s32 txgbe_clear_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq) +{ + u32 mpsar_lo, mpsar_hi; + u32 rar_entries = hw->mac.num_rar_entries; + + DEBUGFUNC("\n"); + UNREFERENCED_PARAMETER(vmdq); + + /* Make sure we are using a valid rar index range */ + if (rar >= rar_entries) { + ERROR_REPORT2(TXGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", rar); + return TXGBE_ERR_INVALID_ARGUMENT; + } + + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, rar); + mpsar_lo = rd32(hw, TXGBE_PSR_MAC_SWC_VM_L); + mpsar_hi = rd32(hw, TXGBE_PSR_MAC_SWC_VM_H); + + if (TXGBE_REMOVED(hw->hw_addr)) + goto done; + + if (!mpsar_lo && !mpsar_hi) + goto done; + + /* was that the last pool using this rar? */ + if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0) + TCALL(hw, mac.ops.clear_rar, rar); +done: + return 0; +} + +/** + * txgbe_set_vmdq - Associate a VMDq pool index with a rx address + * @hw: pointer to hardware struct + * @rar: receive address register index to associate with a VMDq index + * @vmdq: VMDq pool index + **/ +s32 txgbe_set_vmdq(struct txgbe_hw *hw, u32 rar, u32 pool) +{ + u32 rar_entries = hw->mac.num_rar_entries; + + DEBUGFUNC("\n"); + UNREFERENCED_PARAMETER(pool); + + /* Make sure we are using a valid rar index range */ + if (rar >= rar_entries) { + ERROR_REPORT2(TXGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", rar); + return TXGBE_ERR_INVALID_ARGUMENT; + } + + return 0; +} + +/** + * This function should only be involved in the IOV mode. + * In IOV mode, Default pool is next pool after the number of + * VFs advertized and not 0. + * MPSAR table needs to be updated for SAN_MAC RAR [hw->mac.san_mac_rar_index] + * + * txgbe_set_vmdq_san_mac - Associate default VMDq pool index with a rx address + * @hw: pointer to hardware struct + * @vmdq: VMDq pool index + **/ +s32 txgbe_set_vmdq_san_mac(struct txgbe_hw *hw, u32 vmdq) +{ + u32 rar = hw->mac.san_mac_rar_index; + + DEBUGFUNC("\n"); + + wr32(hw, TXGBE_PSR_MAC_SWC_IDX, rar); + if (vmdq < 32) { + wr32(hw, TXGBE_PSR_MAC_SWC_VM_L, 1 << vmdq); + wr32(hw, TXGBE_PSR_MAC_SWC_VM_H, 0); + } else { + wr32(hw, TXGBE_PSR_MAC_SWC_VM_L, 0); + wr32(hw, TXGBE_PSR_MAC_SWC_VM_H, 1 << (vmdq - 32)); + } + + return 0; +} + +/** + * txgbe_init_uta_tables - Initialize the Unicast Table Array + * @hw: pointer to hardware structure + **/ +s32 txgbe_init_uta_tables(struct txgbe_hw *hw) +{ + int i; + + DEBUGFUNC("\n"); + DEBUGOUT(" Clearing UTA\n"); + + for (i = 0; i < 128; i++) + wr32(hw, TXGBE_PSR_UC_TBL(i), 0); + + return 0; +} + +/** + * txgbe_find_vlvf_slot - find the vlanid or the first empty slot + * @hw: pointer to hardware structure + * @vlan: VLAN id to write to VLAN filter + * + * return the VLVF index where this VLAN id should be placed + * + **/ +s32 txgbe_find_vlvf_slot(struct txgbe_hw *hw, u32 vlan) +{ + u32 bits = 0; + u32 first_empty_slot = 0; + s32 regindex; + + /* short cut the special case */ + if (vlan == 0) + return 0; + + /* + * Search for the vlan id in the VLVF entries. Save off the first empty + * slot found along the way + */ + for (regindex = 1; regindex < TXGBE_PSR_VLAN_SWC_ENTRIES; regindex++) { + wr32(hw, TXGBE_PSR_VLAN_SWC_IDX, regindex); + bits = rd32(hw, TXGBE_PSR_VLAN_SWC); + if (!bits && !(first_empty_slot)) + first_empty_slot = regindex; + else if ((bits & 0x0FFF) == vlan) + break; + } + + /* + * If regindex is less than TXGBE_VLVF_ENTRIES, then we found the vlan + * in the VLVF. Else use the first empty VLVF register for this + * vlan id. + */ + if (regindex >= TXGBE_PSR_VLAN_SWC_ENTRIES) { + if (first_empty_slot) + regindex = first_empty_slot; + else { + ERROR_REPORT1(TXGBE_ERROR_SOFTWARE, + "No space in VLVF.\n"); + regindex = TXGBE_ERR_NO_SPACE; + } + } + + return regindex; +} + +/** + * txgbe_set_vfta - Set VLAN filter table + * @hw: pointer to hardware structure + * @vlan: VLAN id to write to VLAN filter + * @vind: VMDq output index that maps queue to VLAN id in VFVFB + * @vlan_on: boolean flag to turn on/off VLAN in VFVF + * + * Turn on/off specified VLAN in the VLAN filter table. + **/ +s32 txgbe_set_vfta(struct txgbe_hw *hw, u32 vlan, u32 vind, + bool vlan_on) +{ + s32 regindex; + u32 bitindex; + u32 vfta; + u32 targetbit; + s32 ret_val = 0; + bool vfta_changed = false; + + DEBUGFUNC("\n"); + + if (vlan > 4095) + return TXGBE_ERR_PARAM; + + /* + * this is a 2 part operation - first the VFTA, then the + * VLVF and VLVFB if VT Mode is set + * We don't write the VFTA until we know the VLVF part succeeded. + */ + + /* Part 1 + * The VFTA is a bitstring made up of 128 32-bit registers + * that enable the particular VLAN id, much like the MTA: + * bits[11-5]: which register + * bits[4-0]: which bit in the register + */ + regindex = (vlan >> 5) & 0x7F; + bitindex = vlan & 0x1F; + targetbit = (1 << bitindex); + /* errata 5 */ + vfta = hw->mac.vft_shadow[regindex]; + if (vlan_on) { + if (!(vfta & targetbit)) { + vfta |= targetbit; + vfta_changed = true; + } + } else { + if ((vfta & targetbit)) { + vfta &= ~targetbit; + vfta_changed = true; + } + } + + /* Part 2 + * Call txgbe_set_vlvf to set VLVFB and VLVF + */ + ret_val = txgbe_set_vlvf(hw, vlan, vind, vlan_on, + &vfta_changed); + if (ret_val != 0) + return ret_val; + + if (vfta_changed) + wr32(hw, TXGBE_PSR_VLAN_TBL(regindex), vfta); + /* errata 5 */ + hw->mac.vft_shadow[regindex] = vfta; + return 0; +} + +/** + * txgbe_set_vlvf - Set VLAN Pool Filter + * @hw: pointer to hardware structure + * @vlan: VLAN id to write to VLAN filter + * @vind: VMDq output index that maps queue to VLAN id in VFVFB + * @vlan_on: boolean flag to turn on/off VLAN in VFVF + * @vfta_changed: pointer to boolean flag which indicates whether VFTA + * should be changed + * + * Turn on/off specified bit in VLVF table. + **/ +s32 txgbe_set_vlvf(struct txgbe_hw *hw, u32 vlan, u32 vind, + bool vlan_on, bool *vfta_changed) +{ + u32 vt; + + DEBUGFUNC("\n"); + + if (vlan > 4095) + return TXGBE_ERR_PARAM; + + /* If VT Mode is set + * Either vlan_on + * make sure the vlan is in VLVF + * set the vind bit in the matching VLVFB + * Or !vlan_on + * clear the pool bit and possibly the vind + */ + vt = rd32(hw, TXGBE_CFG_PORT_CTL); + if (vt & TXGBE_CFG_PORT_CTL_NUM_VT_MASK) { + s32 vlvf_index; + u32 bits; + + vlvf_index = txgbe_find_vlvf_slot(hw, vlan); + if (vlvf_index < 0) + return vlvf_index; + + wr32(hw, TXGBE_PSR_VLAN_SWC_IDX, vlvf_index); + if (vlan_on) { + /* set the pool bit */ + if (vind < 32) { + bits = rd32(hw, + TXGBE_PSR_VLAN_SWC_VM_L); + bits |= (1 << vind); + wr32(hw, + TXGBE_PSR_VLAN_SWC_VM_L, + bits); + } else { + bits = rd32(hw, + TXGBE_PSR_VLAN_SWC_VM_H); + bits |= (1 << (vind - 32)); + wr32(hw, + TXGBE_PSR_VLAN_SWC_VM_H, + bits); + } + } else { + /* clear the pool bit */ + if (vind < 32) { + bits = rd32(hw, + TXGBE_PSR_VLAN_SWC_VM_L); + bits &= ~(1 << vind); + wr32(hw, + TXGBE_PSR_VLAN_SWC_VM_L, + bits); + bits |= rd32(hw, + TXGBE_PSR_VLAN_SWC_VM_H); + } else { + bits = rd32(hw, + TXGBE_PSR_VLAN_SWC_VM_H); + bits &= ~(1 << (vind - 32)); + wr32(hw, + TXGBE_PSR_VLAN_SWC_VM_H, + bits); + bits |= rd32(hw, + TXGBE_PSR_VLAN_SWC_VM_L); + } + } + + /* + * If there are still bits set in the VLVFB registers + * for the VLAN ID indicated we need to see if the + * caller is requesting that we clear the VFTA entry bit. + * If the caller has requested that we clear the VFTA + * entry bit but there are still pools/VFs using this VLAN + * ID entry then ignore the request. We're not worried + * about the case where we're turning the VFTA VLAN ID + * entry bit on, only when requested to turn it off as + * there may be multiple pools and/or VFs using the + * VLAN ID entry. In that case we cannot clear the + * VFTA bit until all pools/VFs using that VLAN ID have also + * been cleared. This will be indicated by "bits" being + * zero. + */ + if (bits) { + wr32(hw, TXGBE_PSR_VLAN_SWC, + (TXGBE_PSR_VLAN_SWC_VIEN | vlan)); + if ((!vlan_on) && (vfta_changed != NULL)) { + /* someone wants to clear the vfta entry + * but some pools/VFs are still using it. + * Ignore it. */ + *vfta_changed = false; + } + } else + wr32(hw, TXGBE_PSR_VLAN_SWC, 0); + } + + return 0; +} + +/** + * txgbe_clear_vfta - Clear VLAN filter table + * @hw: pointer to hardware structure + * + * Clears the VLAN filer table, and the VMDq index associated with the filter + **/ +s32 txgbe_clear_vfta(struct txgbe_hw *hw) +{ + u32 offset; + + DEBUGFUNC("\n"); + + for (offset = 0; offset < hw->mac.vft_size; offset++) { + wr32(hw, TXGBE_PSR_VLAN_TBL(offset), 0); + /* errata 5 */ + hw->mac.vft_shadow[offset] = 0; + } + + for (offset = 0; offset < TXGBE_PSR_VLAN_SWC_ENTRIES; offset++) { + wr32(hw, TXGBE_PSR_VLAN_SWC_IDX, offset); + wr32(hw, TXGBE_PSR_VLAN_SWC, 0); + wr32(hw, TXGBE_PSR_VLAN_SWC_VM_L, 0); + wr32(hw, TXGBE_PSR_VLAN_SWC_VM_H, 0); + } + + return 0; +} + +/** + * txgbe_get_wwn_prefix - Get alternative WWNN/WWPN prefix from + * the EEPROM + * @hw: pointer to hardware structure + * @wwnn_prefix: the alternative WWNN prefix + * @wwpn_prefix: the alternative WWPN prefix + * + * This function will read the EEPROM from the alternative SAN MAC address + * block to check the support for the alternative WWNN/WWPN prefix support. + **/ +s32 txgbe_get_wwn_prefix(struct txgbe_hw *hw, u16 *wwnn_prefix, + u16 *wwpn_prefix) +{ + u16 offset, caps; + u16 alt_san_mac_blk_offset; + + DEBUGFUNC("\n"); + + /* clear output first */ + *wwnn_prefix = 0xFFFF; + *wwpn_prefix = 0xFFFF; + + /* check if alternative SAN MAC is supported */ + offset = hw->eeprom.sw_region_offset + TXGBE_ALT_SAN_MAC_ADDR_BLK_PTR; + if (TCALL(hw, eeprom.ops.read, offset, &alt_san_mac_blk_offset)) + goto wwn_prefix_err; + + if ((alt_san_mac_blk_offset == 0) || + (alt_san_mac_blk_offset == 0xFFFF)) + goto wwn_prefix_out; + + /* check capability in alternative san mac address block */ + offset = alt_san_mac_blk_offset + TXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET; + if (TCALL(hw, eeprom.ops.read, offset, &caps)) + goto wwn_prefix_err; + if (!(caps & TXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN)) + goto wwn_prefix_out; + + /* get the corresponding prefix for WWNN/WWPN */ + offset = alt_san_mac_blk_offset + TXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET; + if (TCALL(hw, eeprom.ops.read, offset, wwnn_prefix)) { + ERROR_REPORT2(TXGBE_ERROR_INVALID_STATE, + "eeprom read at offset %d failed", offset); + } + + offset = alt_san_mac_blk_offset + TXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET; + if (TCALL(hw, eeprom.ops.read, offset, wwpn_prefix)) + goto wwn_prefix_err; + +wwn_prefix_out: + return 0; + +wwn_prefix_err: + ERROR_REPORT2(TXGBE_ERROR_INVALID_STATE, + "eeprom read at offset %d failed", offset); + return 0; +} + + +/** + * txgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing + * @hw: pointer to hardware structure + * @enable: enable or disable switch for anti-spoofing + * @pf: Physical Function pool - do not enable anti-spoofing for the PF + * + **/ +void txgbe_set_mac_anti_spoofing(struct txgbe_hw *hw, bool enable, int pf) +{ + u64 pfvfspoof = 0; + + DEBUGFUNC("\n"); + + if (enable) { + /* + * The PF should be allowed to spoof so that it can support + * emulation mode NICs. Do not set the bits assigned to the PF + * Remaining pools belong to the PF so they do not need to have + * anti-spoofing enabled. + */ + pfvfspoof = (1 << pf) - 1; + wr32(hw, TXGBE_TDM_MAC_AS_L, + pfvfspoof & 0xffffffff); + wr32(hw, TXGBE_TDM_MAC_AS_H, pfvfspoof >> 32); + } else { + wr32(hw, TXGBE_TDM_MAC_AS_L, 0); + wr32(hw, TXGBE_TDM_MAC_AS_H, 0); + } +} + +/** + * txgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing + * @hw: pointer to hardware structure + * @enable: enable or disable switch for VLAN anti-spoofing + * @vf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing + * + **/ +void txgbe_set_vlan_anti_spoofing(struct txgbe_hw *hw, bool enable, int vf) +{ + u32 pfvfspoof; + + DEBUGFUNC("\n"); + + if (vf < 32) { + pfvfspoof = rd32(hw, TXGBE_TDM_VLAN_AS_L); + if (enable) + pfvfspoof |= (1 << vf); + else + pfvfspoof &= ~(1 << vf); + wr32(hw, TXGBE_TDM_VLAN_AS_L, pfvfspoof); + } else { + pfvfspoof = rd32(hw, TXGBE_TDM_VLAN_AS_H); + if (enable) + pfvfspoof |= (1 << (vf - 32)); + else + pfvfspoof &= ~(1 << (vf - 32)); + wr32(hw, TXGBE_TDM_VLAN_AS_H, pfvfspoof); + } +} + +/** + * txgbe_set_ethertype_anti_spoofing - Enable/Disable Ethertype anti-spoofing + * @hw: pointer to hardware structure + * @enable: enable or disable switch for Ethertype anti-spoofing + * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing + * + **/ +void txgbe_set_ethertype_anti_spoofing(struct txgbe_hw *hw, + bool enable, int vf) +{ + u32 pfvfspoof; + + DEBUGFUNC("\n"); + + if (vf < 32) { + pfvfspoof = rd32(hw, TXGBE_TDM_ETYPE_AS_L); + if (enable) + pfvfspoof |= (1 << vf); + else + pfvfspoof &= ~(1 << vf); + wr32(hw, TXGBE_TDM_ETYPE_AS_L, pfvfspoof); + } else { + pfvfspoof = rd32(hw, TXGBE_TDM_ETYPE_AS_H); + if (enable) + pfvfspoof |= (1 << (vf - 32)); + else + pfvfspoof &= ~(1 << (vf - 32)); + wr32(hw, TXGBE_TDM_ETYPE_AS_H, pfvfspoof); + } +} + +/** + * txgbe_get_device_caps - Get additional device capabilities + * @hw: pointer to hardware structure + * @device_caps: the EEPROM word with the extra device capabilities + * + * This function will read the EEPROM location for the device capabilities, + * and return the word through device_caps. + **/ +s32 txgbe_get_device_caps(struct txgbe_hw *hw, u16 *device_caps) +{ + DEBUGFUNC("\n"); + + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_DEVICE_CAPS, device_caps); + + return 0; +} + +/** + * txgbe_calculate_checksum - Calculate checksum for buffer + * @buffer: pointer to EEPROM + * @length: size of EEPROM to calculate a checksum for + * Calculates the checksum for some buffer on a specified length. The + * checksum calculated is returned. + **/ +u8 txgbe_calculate_checksum(u8 *buffer, u32 length) +{ + u32 i; + u8 sum = 0; + + DEBUGFUNC("\n"); + + if (!buffer) + return 0; + + for (i = 0; i < length; i++) + sum += buffer[i]; + + return (u8) (0 - sum); +} + +/** + * txgbe_host_interface_command - Issue command to manageability block + * @hw: pointer to the HW structure + * @buffer: contains the command to write and where the return status will + * be placed + * @length: length of buffer, must be multiple of 4 bytes + * @timeout: time in ms to wait for command completion + * @return_data: read and return data from the buffer (true) or not (false) + * Needed because FW structures are big endian and decoding of + * these fields can be 8 bit or 16 bit based on command. Decoding + * is not easily understood without making a table of commands. + * So we will leave this up to the caller to read back the data + * in these cases. + * + * Communicates with the manageability block. On success return 0 + * else return TXGBE_ERR_HOST_INTERFACE_COMMAND. + **/ +s32 txgbe_host_interface_command(struct txgbe_hw *hw, u32 *buffer, + u32 length, u32 timeout, bool return_data) +{ + u32 hicr, i, bi; + u32 hdr_size = sizeof(struct txgbe_hic_hdr); + u16 buf_len; + u32 dword_len; + s32 status = 0; + u32 buf[64] = {}; + + DEBUGFUNC("\n"); + + if (length == 0 || length > TXGBE_HI_MAX_BLOCK_BYTE_LENGTH) { + DEBUGOUT1("Buffer length failure buffersize=%d.\n", length); + return TXGBE_ERR_HOST_INTERFACE_COMMAND; + } + + if (TCALL(hw, mac.ops.acquire_swfw_sync, TXGBE_MNG_SWFW_SYNC_SW_MB) + != 0) { + return TXGBE_ERR_SWFW_SYNC; + } + + + /* Calculate length in DWORDs. We must be DWORD aligned */ + if ((length % (sizeof(u32))) != 0) { + DEBUGOUT("Buffer length failure, not aligned to dword"); + status = TXGBE_ERR_INVALID_ARGUMENT; + goto rel_out; + } + + dword_len = length >> 2; + + /* The device driver writes the relevant command block + * into the ram area. + */ + for (i = 0; i < dword_len; i++) { + if (txgbe_check_mng_access(hw)) { + wr32a(hw, TXGBE_MNG_MBOX, + i, TXGBE_CPU_TO_LE32(buffer[i])); + /* write flush */ + buf[i] = rd32a(hw, TXGBE_MNG_MBOX, i); + } else { + status = TXGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + /* Setting this bit tells the ARC that a new command is pending. */ + if (txgbe_check_mng_access(hw)) + wr32m(hw, TXGBE_MNG_MBOX_CTL, + TXGBE_MNG_MBOX_CTL_SWRDY, TXGBE_MNG_MBOX_CTL_SWRDY); + else { + status = TXGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + + for (i = 0; i < timeout; i++) { + if (txgbe_check_mng_access(hw)) { + hicr = rd32(hw, TXGBE_MNG_MBOX_CTL); + if ((hicr & TXGBE_MNG_MBOX_CTL_FWRDY)) + break; + } + msec_delay(1); + } + + /* Check command completion */ + if (timeout != 0 && i == timeout) { + ERROR_REPORT1(TXGBE_ERROR_CAUTION, + "Command has failed with no status valid.\n"); + + ERROR_REPORT1(TXGBE_ERROR_CAUTION, "write value:\n"); + for (i = 0; i < dword_len; i++) { + ERROR_REPORT1(TXGBE_ERROR_CAUTION, "%x ", buffer[i]); + } + ERROR_REPORT1(TXGBE_ERROR_CAUTION, "read value:\n"); + for (i = 0; i < dword_len; i++) { + ERROR_REPORT1(TXGBE_ERROR_CAUTION, "%x ", buf[i]); + } + + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + goto rel_out; + } + + if (!return_data) + goto rel_out; + + /* Calculate length in DWORDs */ + dword_len = hdr_size >> 2; + + /* first pull in the header so we know the buffer length */ + for (bi = 0; bi < dword_len; bi++) { + if (txgbe_check_mng_access(hw)) { + buffer[bi] = rd32a(hw, TXGBE_MNG_MBOX, + bi); + TXGBE_LE32_TO_CPUS(&buffer[bi]); + } else { + status = TXGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + + /* If there is any thing in data position pull it in */ + buf_len = ((struct txgbe_hic_hdr *)buffer)->buf_len; + if (buf_len == 0) + goto rel_out; + + if (length < buf_len + hdr_size) { + DEBUGOUT("Buffer not large enough for reply message.\n"); + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + goto rel_out; + } + + /* Calculate length in DWORDs, add 3 for odd lengths */ + dword_len = (buf_len + 3) >> 2; + + /* Pull in the rest of the buffer (bi is where we left off) */ + for (; bi <= dword_len; bi++) { + if (txgbe_check_mng_access(hw)) { + buffer[bi] = rd32a(hw, TXGBE_MNG_MBOX, + bi); + TXGBE_LE32_TO_CPUS(&buffer[bi]); + } else { + status = TXGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + +rel_out: + TCALL(hw, mac.ops.release_swfw_sync, TXGBE_MNG_SWFW_SYNC_SW_MB); + return status; +} + +/** + * txgbe_set_fw_drv_ver - Sends driver version to firmware + * @hw: pointer to the HW structure + * @maj: driver version major number + * @min: driver version minor number + * @build: driver version build number + * @sub: driver version sub build number + * + * Sends driver version number to firmware through the manageability + * block. On success return 0 + * else returns TXGBE_ERR_SWFW_SYNC when encountering an error acquiring + * semaphore or TXGBE_ERR_HOST_INTERFACE_COMMAND when command fails. + **/ +s32 txgbe_set_fw_drv_ver(struct txgbe_hw *hw, u8 maj, u8 min, + u8 build, u8 sub) +{ + struct txgbe_hic_drv_info fw_cmd; + int i; + s32 ret_val = 0; + + DEBUGFUNC("\n"); + + fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO; + fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN; + fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; + fw_cmd.port_num = (u8)hw->bus.func; + fw_cmd.ver_maj = maj; + fw_cmd.ver_min = min; + fw_cmd.ver_build = build; + fw_cmd.ver_sub = sub; + fw_cmd.hdr.checksum = 0; + fw_cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&fw_cmd, + (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len)); + fw_cmd.pad = 0; + fw_cmd.pad2 = 0; + + for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) { + ret_val = txgbe_host_interface_command(hw, (u32 *)&fw_cmd, + sizeof(fw_cmd), + TXGBE_HI_COMMAND_TIMEOUT, + true); + if (ret_val != 0) + continue; + + if (fw_cmd.hdr.cmd_or_resp.ret_status == + FW_CEM_RESP_STATUS_SUCCESS) + ret_val = 0; + else + ret_val = TXGBE_ERR_HOST_INTERFACE_COMMAND; + + break; + } + + return ret_val; +} + +/** + * txgbe_reset_hostif - send reset cmd to fw + * @hw: pointer to hardware structure + * + * Sends reset cmd to firmware through the manageability + * block. On success return 0 + * else returns TXGBE_ERR_SWFW_SYNC when encountering an error acquiring + * semaphore or TXGBE_ERR_HOST_INTERFACE_COMMAND when command fails. + **/ +s32 txgbe_reset_hostif(struct txgbe_hw *hw) +{ + struct txgbe_hic_reset reset_cmd; + int i; + s32 status = 0; + + DEBUGFUNC("\n"); + + reset_cmd.hdr.cmd = FW_RESET_CMD; + reset_cmd.hdr.buf_len = FW_RESET_LEN; + reset_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; + reset_cmd.lan_id = hw->bus.lan_id; + reset_cmd.reset_type = (u16)hw->reset_type; + reset_cmd.hdr.checksum = 0; + reset_cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&reset_cmd, + (FW_CEM_HDR_LEN + reset_cmd.hdr.buf_len)); + + for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) { + status = txgbe_host_interface_command(hw, (u32 *)&reset_cmd, + sizeof(reset_cmd), + TXGBE_HI_COMMAND_TIMEOUT, + true); + if (status != 0) + continue; + + if (reset_cmd.hdr.cmd_or_resp.ret_status == + FW_CEM_RESP_STATUS_SUCCESS) { + status = 0; + hw->link_status = TXGBE_LINK_STATUS_NONE; + } else + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + + break; + } + + return status; +} + +s32 txgbe_setup_mac_link_hostif(struct txgbe_hw *hw, u32 speed) +{ + struct txgbe_hic_phy_cfg cmd; + int i; + s32 status = 0; + + DEBUGFUNC("\n"); + + cmd.hdr.cmd = FW_SETUP_MAC_LINK_CMD; + cmd.hdr.buf_len = FW_SETUP_MAC_LINK_LEN; + cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; + cmd.lan_id = hw->bus.lan_id; + cmd.phy_mode = 0; + cmd.phy_speed = (u16)speed; + cmd.hdr.checksum = 0; + cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&cmd, + (FW_CEM_HDR_LEN + cmd.hdr.buf_len)); + + for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) { + status = txgbe_host_interface_command(hw, (u32 *)&cmd, + sizeof(cmd), + TXGBE_HI_COMMAND_TIMEOUT, + true); + if (status != 0) + continue; + + if (cmd.hdr.cmd_or_resp.ret_status == + FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + + break; + } + + return status; + +} + +u16 txgbe_crc16_ccitt(const u8 *buf, int size) +{ + u16 crc = 0; + int i; + while (--size >= 0) { + crc ^= (u16)*buf++ << 8; + for (i = 0; i < 8; i++) { + if (crc & 0x8000) + crc = crc << 1 ^ 0x1021; + else + crc <<= 1; + } + } + return crc; +} + +s32 txgbe_upgrade_flash_hostif(struct txgbe_hw *hw, u32 region, + const u8 *data, u32 size) +{ + struct txgbe_hic_upg_start start_cmd; + struct txgbe_hic_upg_write write_cmd; + struct txgbe_hic_upg_verify verify_cmd; + u32 offset; + s32 status = 0; + + DEBUGFUNC("\n"); + + start_cmd.hdr.cmd = FW_FLASH_UPGRADE_START_CMD; + start_cmd.hdr.buf_len = FW_FLASH_UPGRADE_START_LEN; + start_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; + start_cmd.module_id = (u8)region; + start_cmd.hdr.checksum = 0; + start_cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&start_cmd, + (FW_CEM_HDR_LEN + start_cmd.hdr.buf_len)); + start_cmd.pad2 = 0; + start_cmd.pad3 = 0; + + status = txgbe_host_interface_command(hw, (u32 *)&start_cmd, + sizeof(start_cmd), + TXGBE_HI_FLASH_ERASE_TIMEOUT, + true); + + if (start_cmd.hdr.cmd_or_resp.ret_status == FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else { + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + return status; + } + + for (offset = 0; offset < size;) { + write_cmd.hdr.cmd = FW_FLASH_UPGRADE_WRITE_CMD; + if (size - offset > 248) { + write_cmd.data_len = 248 / 4; + write_cmd.eof_flag = 0; + } else { + write_cmd.data_len = (u8)((size - offset) / 4); + write_cmd.eof_flag = 1; + } + memcpy((u8 *)write_cmd.data, &data[offset], write_cmd.data_len * 4); + write_cmd.hdr.buf_len = (write_cmd.data_len + 1) * 4; + write_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; + write_cmd.check_sum = txgbe_crc16_ccitt((u8 *)write_cmd.data, + write_cmd.data_len * 4); + + status = txgbe_host_interface_command(hw, (u32 *)&write_cmd, + sizeof(write_cmd), + TXGBE_HI_FLASH_UPDATE_TIMEOUT, + true); + if (start_cmd.hdr.cmd_or_resp.ret_status == + FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else { + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + return status; + } + offset += write_cmd.data_len * 4; + } + + verify_cmd.hdr.cmd = FW_FLASH_UPGRADE_VERIFY_CMD; + verify_cmd.hdr.buf_len = FW_FLASH_UPGRADE_VERIFY_LEN; + verify_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; + switch (region) { + case TXGBE_MODULE_EEPROM: + verify_cmd.action_flag = TXGBE_RELOAD_EEPROM; + break; + case TXGBE_MODULE_FIRMWARE: + verify_cmd.action_flag = TXGBE_RESET_FIRMWARE; + break; + case TXGBE_MODULE_HARDWARE: + verify_cmd.action_flag = TXGBE_RESET_LAN; + break; + default: + return status; + } + + verify_cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&verify_cmd, + (FW_CEM_HDR_LEN + verify_cmd.hdr.buf_len)); + + status = txgbe_host_interface_command(hw, (u32 *)&verify_cmd, + sizeof(verify_cmd), + TXGBE_HI_FLASH_VERIFY_TIMEOUT, + true); + + if (verify_cmd.hdr.cmd_or_resp.ret_status == FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else { + status = TXGBE_ERR_HOST_INTERFACE_COMMAND; + } + return status; +} + +/** + * txgbe_set_rxpba - Initialize Rx packet buffer + * @hw: pointer to hardware structure + * @num_pb: number of packet buffers to allocate + * @headroom: reserve n KB of headroom + * @strategy: packet buffer allocation strategy + **/ +void txgbe_set_rxpba(struct txgbe_hw *hw, int num_pb, u32 headroom, + int strategy) +{ + u32 pbsize = hw->mac.rx_pb_size; + int i = 0; + u32 rxpktsize, txpktsize, txpbthresh; + + DEBUGFUNC("\n"); + + /* Reserve headroom */ + pbsize -= headroom; + + if (!num_pb) + num_pb = 1; + + /* Divide remaining packet buffer space amongst the number of packet + * buffers requested using supplied strategy. + */ + switch (strategy) { + case PBA_STRATEGY_WEIGHTED: + /* txgbe_dcb_pba_80_48 strategy weight first half of packet + * buffer with 5/8 of the packet buffer space. + */ + rxpktsize = (pbsize * 5) / (num_pb * 4); + pbsize -= rxpktsize * (num_pb / 2); + rxpktsize <<= TXGBE_RDB_PB_SZ_SHIFT; + for (; i < (num_pb / 2); i++) + wr32(hw, TXGBE_RDB_PB_SZ(i), rxpktsize); + /* fall through */ + /* Fall through to configure remaining packet buffers */ + case PBA_STRATEGY_EQUAL: + rxpktsize = (pbsize / (num_pb - i)) << TXGBE_RDB_PB_SZ_SHIFT; + for (; i < num_pb; i++) + wr32(hw, TXGBE_RDB_PB_SZ(i), rxpktsize); + break; + default: + break; + } + + /* Only support an equally distributed Tx packet buffer strategy. */ + txpktsize = TXGBE_TDB_PB_SZ_MAX / num_pb; + txpbthresh = (txpktsize / 1024) - TXGBE_TXPKT_SIZE_MAX; + for (i = 0; i < num_pb; i++) { + wr32(hw, TXGBE_TDB_PB_SZ(i), txpktsize); + wr32(hw, TXGBE_TDM_PB_THRE(i), txpbthresh); + } + + /* Clear unused TCs, if any, to zero buffer size*/ + for (; i < TXGBE_MAX_PB; i++) { + wr32(hw, TXGBE_RDB_PB_SZ(i), 0); + wr32(hw, TXGBE_TDB_PB_SZ(i), 0); + wr32(hw, TXGBE_TDM_PB_THRE(i), 0); + } +} + +STATIC const u8 txgbe_emc_temp_data[4] = { + TXGBE_EMC_INTERNAL_DATA, + TXGBE_EMC_DIODE1_DATA, + TXGBE_EMC_DIODE2_DATA, + TXGBE_EMC_DIODE3_DATA +}; +STATIC const u8 txgbe_emc_therm_limit[4] = { + TXGBE_EMC_INTERNAL_THERM_LIMIT, + TXGBE_EMC_DIODE1_THERM_LIMIT, + TXGBE_EMC_DIODE2_THERM_LIMIT, + TXGBE_EMC_DIODE3_THERM_LIMIT +}; + +/** + * txgbe_get_thermal_sensor_data - Gathers thermal sensor data + * @hw: pointer to hardware structure + * @data: pointer to the thermal sensor data structure + * + * algorithm: + * T = (-4.8380E+01)N^0 + (3.1020E-01)N^1 + (-1.8201E-04)N^2 + + (8.1542E-08)N^3 + (-1.6743E-11)N^4 + * algorithm with 5% more deviation, easy for implementation + * T = (-50)N^0 + (0.31)N^1 + (-0.0002)N^2 + (0.0000001)N^3 + * + * Returns the thermal sensor data structure + **/ +s32 txgbe_get_thermal_sensor_data(struct txgbe_hw *hw) +{ + s64 tsv; + int i = 0; + struct txgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; + + DEBUGFUNC("\n"); + + /* Only support thermal sensors attached to physical port 0 */ + if (hw->bus.lan_id) + return TXGBE_NOT_IMPLEMENTED; + + tsv = (s64)(rd32(hw, TXGBE_TS_ST) & + TXGBE_TS_ST_DATA_OUT_MASK); + + tsv = tsv < 1200 ? tsv : 1200; + tsv = -(48380 << 8) / 1000 + + tsv * (31020 << 8) / 100000 + - tsv * tsv * (18201 << 8) / 100000000 + + tsv * tsv * tsv * (81542 << 8) / 1000000000000 + - tsv * tsv * tsv * tsv * (16743 << 8) / 1000000000000000; + tsv >>= 8; + + data->sensor.temp = (s16)tsv; + + for (i = 0; i < 100 ; i++) { + tsv = (s64)rd32(hw, TXGBE_TS_ST); + if (tsv >> 16 == 0x1) { + tsv = tsv & TXGBE_TS_ST_DATA_OUT_MASK; + tsv = tsv < 1200 ? tsv : 1200; + tsv = -(48380 << 8) / 1000 + + tsv * (31020 << 8) / 100000 + - tsv * tsv * (18201 << 8) / 100000000 + + tsv * tsv * tsv * (81542 << 8) / 1000000000000 + - tsv * tsv * tsv * tsv * (16743 << 8) / 1000000000000000; + tsv >>= 8; + + data->sensor.temp = (s16)tsv; + break; + } else { + msleep(1); + continue; + } + } + + return 0; +} + +/** + * txgbe_init_thermal_sensor_thresh - Inits thermal sensor thresholds + * @hw: pointer to hardware structure + * + * Inits the thermal sensor thresholds according to the NVM map + * and save off the threshold and location values into mac.thermal_sensor_data + **/ +s32 txgbe_init_thermal_sensor_thresh(struct txgbe_hw *hw) +{ + s32 status = 0; + + struct txgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; + + DEBUGFUNC("\n"); + + memset(data, 0, sizeof(struct txgbe_thermal_sensor_data)); + + /* Only support thermal sensors attached to SP physical port 0 */ + if (hw->bus.lan_id) + return TXGBE_NOT_IMPLEMENTED; + + wr32(hw, TXGBE_TS_CTL, TXGBE_TS_CTL_EVAL_MD); + wr32(hw, TXGBE_TS_INT_EN, + TXGBE_TS_INT_EN_ALARM_INT_EN | TXGBE_TS_INT_EN_DALARM_INT_EN); + wr32(hw, TXGBE_TS_EN, TXGBE_TS_EN_ENA); + + + data->sensor.alarm_thresh = 100; + wr32(hw, TXGBE_TS_ALARM_THRE, 677); + data->sensor.dalarm_thresh = 90; + wr32(hw, TXGBE_TS_DALARM_THRE, 614); + + return status; +} + +void txgbe_disable_rx(struct txgbe_hw *hw) +{ + u32 pfdtxgswc; + u32 rxctrl; + + DEBUGFUNC("\n"); + + rxctrl = rd32(hw, TXGBE_RDB_PB_CTL); + if (rxctrl & TXGBE_RDB_PB_CTL_RXEN) { + pfdtxgswc = rd32(hw, TXGBE_PSR_CTL); + if (pfdtxgswc & TXGBE_PSR_CTL_SW_EN) { + pfdtxgswc &= ~TXGBE_PSR_CTL_SW_EN; + wr32(hw, TXGBE_PSR_CTL, pfdtxgswc); + hw->mac.set_lben = true; + } else { + hw->mac.set_lben = false; + } + rxctrl &= ~TXGBE_RDB_PB_CTL_RXEN; + wr32(hw, TXGBE_RDB_PB_CTL, rxctrl); + /* errata 14 */ + if (hw->revision_id == TXGBE_SP_MPW) { + do { + do { + if (rd32m(hw, + TXGBE_RDB_PB_CTL, + TXGBE_RDB_PB_CTL_DISABLED) == 1) + break; + msleep(10); + } while (1); + if (rd32m(hw, TXGBE_RDB_TXSWERR, + TXGBE_RDB_TXSWERR_TB_FREE) == 0x143) + break; + else { + wr32m(hw, + TXGBE_RDB_PB_CTL, + TXGBE_RDB_PB_CTL_RXEN, + TXGBE_RDB_PB_CTL_RXEN); + wr32m(hw, + TXGBE_RDB_PB_CTL, + TXGBE_RDB_PB_CTL_RXEN, + ~TXGBE_RDB_PB_CTL_RXEN); + + } + } while (1); + } + + if (!(((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) || + ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP))) { + /* disable mac receiver */ + wr32m(hw, TXGBE_MAC_RX_CFG, + TXGBE_MAC_RX_CFG_RE, 0); + } + } +} + +void txgbe_enable_rx(struct txgbe_hw *hw) +{ + u32 pfdtxgswc; + + DEBUGFUNC("\n"); + + /* enable mac receiver */ + wr32m(hw, TXGBE_MAC_RX_CFG, + TXGBE_MAC_RX_CFG_RE, TXGBE_MAC_RX_CFG_RE); + + wr32m(hw, TXGBE_RDB_PB_CTL, + TXGBE_RDB_PB_CTL_RXEN, TXGBE_RDB_PB_CTL_RXEN); + + if (hw->mac.set_lben) { + pfdtxgswc = rd32(hw, TXGBE_PSR_CTL); + pfdtxgswc |= TXGBE_PSR_CTL_SW_EN; + wr32(hw, TXGBE_PSR_CTL, pfdtxgswc); + hw->mac.set_lben = false; + } +} + +/** + * txgbe_mng_present - returns true when management capability is present + * @hw: pointer to hardware structure + */ +bool txgbe_mng_present(struct txgbe_hw *hw) +{ + u32 fwsm; + + fwsm = rd32(hw, TXGBE_MIS_ST); + return fwsm & TXGBE_MIS_ST_MNG_INIT_DN; +} + +bool txgbe_check_mng_access(struct txgbe_hw *hw) +{ + bool ret = false; + u32 rst_delay; + u32 i; + + struct txgbe_adapter *adapter = hw->back; + if (!txgbe_mng_present(hw)) + return false; + if (adapter->hw.revision_id != TXGBE_SP_MPW) + return true; + if (!(adapter->flags2 & TXGBE_FLAG2_MNG_REG_ACCESS_DISABLED)) + return true; + + rst_delay = (rd32(&adapter->hw, TXGBE_MIS_RST_ST) & + TXGBE_MIS_RST_ST_RST_INIT) >> + TXGBE_MIS_RST_ST_RST_INI_SHIFT; + for (i = 0; i < rst_delay + 2; i++) { + if (!(adapter->flags2 & TXGBE_FLAG2_MNG_REG_ACCESS_DISABLED)) { + ret = true; + break; + } + msleep(100); + } + return ret; +} + +/** + * txgbe_setup_mac_link_multispeed_fiber - Set MAC link speed + * @hw: pointer to hardware structure + * @speed: new link speed + * @autoneg_wait_to_complete: true when waiting for completion is needed + * + * Set the link speed in the MAC and/or PHY register and restarts link. + **/ +s32 txgbe_setup_mac_link_multispeed_fiber(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + u32 link_speed = TXGBE_LINK_SPEED_UNKNOWN; + u32 highest_link_speed = TXGBE_LINK_SPEED_UNKNOWN; + s32 status = 0; + u32 speedcnt = 0; + u32 i = 0; + bool autoneg, link_up = false; + + DEBUGFUNC("\n"); + + /* Mask off requested but non-supported speeds */ + status = TCALL(hw, mac.ops.get_link_capabilities, + &link_speed, &autoneg); + if (status != 0) + return status; + + speed &= link_speed; + + /* Try each speed one by one, highest priority first. We do this in + * software because 10Gb fiber doesn't support speed autonegotiation. + */ + if (speed & TXGBE_LINK_SPEED_10GB_FULL) { + speedcnt++; + highest_link_speed = TXGBE_LINK_SPEED_10GB_FULL; + + /* If we already have link at this speed, just jump out */ + status = TCALL(hw, mac.ops.check_link, + &link_speed, &link_up, false); + if (status != 0) + return status; + + if ((link_speed == TXGBE_LINK_SPEED_10GB_FULL) && link_up) + goto out; + + /* Allow module to change analog characteristics (1G->10G) */ + msec_delay(40); + + status = TCALL(hw, mac.ops.setup_mac_link, + TXGBE_LINK_SPEED_10GB_FULL, + autoneg_wait_to_complete); + if (status != 0) + return status; + + /* Flap the Tx laser if it has not already been done */ + TCALL(hw, mac.ops.flap_tx_laser); + + /* Wait for the controller to acquire link. Per IEEE 802.3ap, + * Section 73.10.2, we may have to wait up to 500ms if KR is + * attempted. sapphire uses the same timing for 10g SFI. + */ + for (i = 0; i < 5; i++) { + /* Wait for the link partner to also set speed */ + msec_delay(100); + + /* If we have link, just jump out */ + status = TCALL(hw, mac.ops.check_link, + &link_speed, &link_up, false); + if (status != 0) + return status; + + if (link_up) + goto out; + } + } + + if (speed & TXGBE_LINK_SPEED_1GB_FULL) { + speedcnt++; + if (highest_link_speed == TXGBE_LINK_SPEED_UNKNOWN) + highest_link_speed = TXGBE_LINK_SPEED_1GB_FULL; + + /* If we already have link at this speed, just jump out */ + status = TCALL(hw, mac.ops.check_link, + &link_speed, &link_up, false); + if (status != 0) + return status; + + if ((link_speed == TXGBE_LINK_SPEED_1GB_FULL) && link_up) + goto out; + + /* Allow module to change analog characteristics (10G->1G) */ + msec_delay(40); + + status = TCALL(hw, mac.ops.setup_mac_link, + TXGBE_LINK_SPEED_1GB_FULL, + autoneg_wait_to_complete); + if (status != 0) + return status; + + /* Flap the Tx laser if it has not already been done */ + TCALL(hw, mac.ops.flap_tx_laser); + + /* Wait for the link partner to also set speed */ + msec_delay(100); + + /* If we have link, just jump out */ + status = TCALL(hw, mac.ops.check_link, + &link_speed, &link_up, false); + if (status != 0) + return status; + + if (link_up) + goto out; + } + + /* We didn't get link. Configure back to the highest speed we tried, + * (if there was more than one). We call ourselves back with just the + * single highest speed that the user requested. + */ + if (speedcnt > 1) + status = txgbe_setup_mac_link_multispeed_fiber(hw, + highest_link_speed, + autoneg_wait_to_complete); + +out: + /* Set autoneg_advertised value based on input link speed */ + hw->phy.autoneg_advertised = 0; + + if (speed & TXGBE_LINK_SPEED_10GB_FULL) + hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_10GB_FULL; + + if (speed & TXGBE_LINK_SPEED_1GB_FULL) + hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_1GB_FULL; + + return status; +} + +int txgbe_check_flash_load(struct txgbe_hw *hw, u32 check_bit) +{ + u32 i = 0; + u32 reg = 0; + int err = 0; + /* if there's flash existing */ + if (!(rd32(hw, TXGBE_SPI_STATUS) & + TXGBE_SPI_STATUS_FLASH_BYPASS)) { + /* wait hw load flash done */ + for (i = 0; i < TXGBE_MAX_FLASH_LOAD_POLL_TIME; i++) { + reg = rd32(hw, TXGBE_SPI_ILDR_STATUS); + if (!(reg & check_bit)) { + /* done */ + break; + } + msleep(200); + } + if (i == TXGBE_MAX_FLASH_LOAD_POLL_TIME) { + err = TXGBE_ERR_FLASH_LOADING_FAILED; + } + } + return err; +} + +/* The txgbe_ptype_lookup is used to convert from the 8-bit ptype in the + * hardware to a bit-field that can be used by SW to more easily determine the + * packet type. + * + * Macros are used to shorten the table lines and make this table human + * readable. + * + * We store the PTYPE in the top byte of the bit field - this is just so that + * we can check that the table doesn't have a row missing, as the index into + * the table should be the PTYPE. + * + * Typical work flow: + * + * IF NOT txgbe_ptype_lookup[ptype].known + * THEN + * Packet is unknown + * ELSE IF txgbe_ptype_lookup[ptype].mac == TXGBE_DEC_PTYPE_MAC_IP + * Use the rest of the fields to look at the tunnels, inner protocols, etc + * ELSE + * Use the enum txgbe_l2_ptypes to decode the packet type + * ENDIF + */ + +/* macro to make the table lines short */ +#define TXGBE_PTT(ptype, mac, ip, etype, eip, proto, layer)\ + { ptype, \ + 1, \ + /* mac */ TXGBE_DEC_PTYPE_MAC_##mac, \ + /* ip */ TXGBE_DEC_PTYPE_IP_##ip, \ + /* etype */ TXGBE_DEC_PTYPE_ETYPE_##etype, \ + /* eip */ TXGBE_DEC_PTYPE_IP_##eip, \ + /* proto */ TXGBE_DEC_PTYPE_PROT_##proto, \ + /* layer */ TXGBE_DEC_PTYPE_LAYER_##layer } + +#define TXGBE_UKN(ptype) \ + { ptype, 0, 0, 0, 0, 0, 0, 0 } + +/* Lookup table mapping the HW PTYPE to the bit field for decoding */ +/* for ((pt=0;pt<256;pt++)); do printf "macro(0x%02X),\n" $pt; done */ +txgbe_dptype txgbe_ptype_lookup[256] = { + TXGBE_UKN(0x00), + TXGBE_UKN(0x01), + TXGBE_UKN(0x02), + TXGBE_UKN(0x03), + TXGBE_UKN(0x04), + TXGBE_UKN(0x05), + TXGBE_UKN(0x06), + TXGBE_UKN(0x07), + TXGBE_UKN(0x08), + TXGBE_UKN(0x09), + TXGBE_UKN(0x0A), + TXGBE_UKN(0x0B), + TXGBE_UKN(0x0C), + TXGBE_UKN(0x0D), + TXGBE_UKN(0x0E), + TXGBE_UKN(0x0F), + + /* L2: mac */ + TXGBE_UKN(0x10), + TXGBE_PTT(0x11, L2, NONE, NONE, NONE, NONE, PAY2), + TXGBE_PTT(0x12, L2, NONE, NONE, NONE, TS, PAY2), + TXGBE_PTT(0x13, L2, NONE, NONE, NONE, NONE, PAY2), + TXGBE_PTT(0x14, L2, NONE, NONE, NONE, NONE, PAY2), + TXGBE_PTT(0x15, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x16, L2, NONE, NONE, NONE, NONE, PAY2), + TXGBE_PTT(0x17, L2, NONE, NONE, NONE, NONE, NONE), + + /* L2: ethertype filter */ + TXGBE_PTT(0x18, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x19, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x1A, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x1B, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x1C, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x1D, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x1E, L2, NONE, NONE, NONE, NONE, NONE), + TXGBE_PTT(0x1F, L2, NONE, NONE, NONE, NONE, NONE), + + /* L3: ip non-tunnel */ + TXGBE_UKN(0x20), + TXGBE_PTT(0x21, IP, FGV4, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x22, IP, IPV4, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x23, IP, IPV4, NONE, NONE, UDP, PAY4), + TXGBE_PTT(0x24, IP, IPV4, NONE, NONE, TCP, PAY4), + TXGBE_PTT(0x25, IP, IPV4, NONE, NONE, SCTP, PAY4), + TXGBE_UKN(0x26), + TXGBE_UKN(0x27), + TXGBE_UKN(0x28), + TXGBE_PTT(0x29, IP, FGV6, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x2A, IP, IPV6, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x2B, IP, IPV6, NONE, NONE, UDP, PAY3), + TXGBE_PTT(0x2C, IP, IPV6, NONE, NONE, TCP, PAY4), + TXGBE_PTT(0x2D, IP, IPV6, NONE, NONE, SCTP, PAY4), + TXGBE_UKN(0x2E), + TXGBE_UKN(0x2F), + + /* L2: fcoe */ + TXGBE_PTT(0x30, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x31, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x32, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x33, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x34, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_UKN(0x35), + TXGBE_UKN(0x36), + TXGBE_UKN(0x37), + TXGBE_PTT(0x38, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x39, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x3A, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x3B, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_PTT(0x3C, FCOE, NONE, NONE, NONE, NONE, PAY3), + TXGBE_UKN(0x3D), + TXGBE_UKN(0x3E), + TXGBE_UKN(0x3F), + + TXGBE_UKN(0x40), + TXGBE_UKN(0x41), + TXGBE_UKN(0x42), + TXGBE_UKN(0x43), + TXGBE_UKN(0x44), + TXGBE_UKN(0x45), + TXGBE_UKN(0x46), + TXGBE_UKN(0x47), + TXGBE_UKN(0x48), + TXGBE_UKN(0x49), + TXGBE_UKN(0x4A), + TXGBE_UKN(0x4B), + TXGBE_UKN(0x4C), + TXGBE_UKN(0x4D), + TXGBE_UKN(0x4E), + TXGBE_UKN(0x4F), + TXGBE_UKN(0x50), + TXGBE_UKN(0x51), + TXGBE_UKN(0x52), + TXGBE_UKN(0x53), + TXGBE_UKN(0x54), + TXGBE_UKN(0x55), + TXGBE_UKN(0x56), + TXGBE_UKN(0x57), + TXGBE_UKN(0x58), + TXGBE_UKN(0x59), + TXGBE_UKN(0x5A), + TXGBE_UKN(0x5B), + TXGBE_UKN(0x5C), + TXGBE_UKN(0x5D), + TXGBE_UKN(0x5E), + TXGBE_UKN(0x5F), + TXGBE_UKN(0x60), + TXGBE_UKN(0x61), + TXGBE_UKN(0x62), + TXGBE_UKN(0x63), + TXGBE_UKN(0x64), + TXGBE_UKN(0x65), + TXGBE_UKN(0x66), + TXGBE_UKN(0x67), + TXGBE_UKN(0x68), + TXGBE_UKN(0x69), + TXGBE_UKN(0x6A), + TXGBE_UKN(0x6B), + TXGBE_UKN(0x6C), + TXGBE_UKN(0x6D), + TXGBE_UKN(0x6E), + TXGBE_UKN(0x6F), + TXGBE_UKN(0x70), + TXGBE_UKN(0x71), + TXGBE_UKN(0x72), + TXGBE_UKN(0x73), + TXGBE_UKN(0x74), + TXGBE_UKN(0x75), + TXGBE_UKN(0x76), + TXGBE_UKN(0x77), + TXGBE_UKN(0x78), + TXGBE_UKN(0x79), + TXGBE_UKN(0x7A), + TXGBE_UKN(0x7B), + TXGBE_UKN(0x7C), + TXGBE_UKN(0x7D), + TXGBE_UKN(0x7E), + TXGBE_UKN(0x7F), + + /* IPv4 --> IPv4/IPv6 */ + TXGBE_UKN(0x80), + TXGBE_PTT(0x81, IP, IPV4, IPIP, FGV4, NONE, PAY3), + TXGBE_PTT(0x82, IP, IPV4, IPIP, IPV4, NONE, PAY3), + TXGBE_PTT(0x83, IP, IPV4, IPIP, IPV4, UDP, PAY4), + TXGBE_PTT(0x84, IP, IPV4, IPIP, IPV4, TCP, PAY4), + TXGBE_PTT(0x85, IP, IPV4, IPIP, IPV4, SCTP, PAY4), + TXGBE_UKN(0x86), + TXGBE_UKN(0x87), + TXGBE_UKN(0x88), + TXGBE_PTT(0x89, IP, IPV4, IPIP, FGV6, NONE, PAY3), + TXGBE_PTT(0x8A, IP, IPV4, IPIP, IPV6, NONE, PAY3), + TXGBE_PTT(0x8B, IP, IPV4, IPIP, IPV6, UDP, PAY4), + TXGBE_PTT(0x8C, IP, IPV4, IPIP, IPV6, TCP, PAY4), + TXGBE_PTT(0x8D, IP, IPV4, IPIP, IPV6, SCTP, PAY4), + TXGBE_UKN(0x8E), + TXGBE_UKN(0x8F), + + /* IPv4 --> GRE/NAT --> NONE/IPv4/IPv6 */ + TXGBE_PTT(0x90, IP, IPV4, IG, NONE, NONE, PAY3), + TXGBE_PTT(0x91, IP, IPV4, IG, FGV4, NONE, PAY3), + TXGBE_PTT(0x92, IP, IPV4, IG, IPV4, NONE, PAY3), + TXGBE_PTT(0x93, IP, IPV4, IG, IPV4, UDP, PAY4), + TXGBE_PTT(0x94, IP, IPV4, IG, IPV4, TCP, PAY4), + TXGBE_PTT(0x95, IP, IPV4, IG, IPV4, SCTP, PAY4), + TXGBE_UKN(0x96), + TXGBE_UKN(0x97), + TXGBE_UKN(0x98), + TXGBE_PTT(0x99, IP, IPV4, IG, FGV6, NONE, PAY3), + TXGBE_PTT(0x9A, IP, IPV4, IG, IPV6, NONE, PAY3), + TXGBE_PTT(0x9B, IP, IPV4, IG, IPV6, UDP, PAY4), + TXGBE_PTT(0x9C, IP, IPV4, IG, IPV6, TCP, PAY4), + TXGBE_PTT(0x9D, IP, IPV4, IG, IPV6, SCTP, PAY4), + TXGBE_UKN(0x9E), + TXGBE_UKN(0x9F), + + /* IPv4 --> GRE/NAT --> MAC --> NONE/IPv4/IPv6 */ + TXGBE_PTT(0xA0, IP, IPV4, IGM, NONE, NONE, PAY3), + TXGBE_PTT(0xA1, IP, IPV4, IGM, FGV4, NONE, PAY3), + TXGBE_PTT(0xA2, IP, IPV4, IGM, IPV4, NONE, PAY3), + TXGBE_PTT(0xA3, IP, IPV4, IGM, IPV4, UDP, PAY4), + TXGBE_PTT(0xA4, IP, IPV4, IGM, IPV4, TCP, PAY4), + TXGBE_PTT(0xA5, IP, IPV4, IGM, IPV4, SCTP, PAY4), + TXGBE_UKN(0xA6), + TXGBE_UKN(0xA7), + TXGBE_UKN(0xA8), + TXGBE_PTT(0xA9, IP, IPV4, IGM, FGV6, NONE, PAY3), + TXGBE_PTT(0xAA, IP, IPV4, IGM, IPV6, NONE, PAY3), + TXGBE_PTT(0xAB, IP, IPV4, IGM, IPV6, UDP, PAY4), + TXGBE_PTT(0xAC, IP, IPV4, IGM, IPV6, TCP, PAY4), + TXGBE_PTT(0xAD, IP, IPV4, IGM, IPV6, SCTP, PAY4), + TXGBE_UKN(0xAE), + TXGBE_UKN(0xAF), + + /* IPv4 --> GRE/NAT --> MAC+VLAN --> NONE/IPv4/IPv6 */ + TXGBE_PTT(0xB0, IP, IPV4, IGMV, NONE, NONE, PAY3), + TXGBE_PTT(0xB1, IP, IPV4, IGMV, FGV4, NONE, PAY3), + TXGBE_PTT(0xB2, IP, IPV4, IGMV, IPV4, NONE, PAY3), + TXGBE_PTT(0xB3, IP, IPV4, IGMV, IPV4, UDP, PAY4), + TXGBE_PTT(0xB4, IP, IPV4, IGMV, IPV4, TCP, PAY4), + TXGBE_PTT(0xB5, IP, IPV4, IGMV, IPV4, SCTP, PAY4), + TXGBE_UKN(0xB6), + TXGBE_UKN(0xB7), + TXGBE_UKN(0xB8), + TXGBE_PTT(0xB9, IP, IPV4, IGMV, FGV6, NONE, PAY3), + TXGBE_PTT(0xBA, IP, IPV4, IGMV, IPV6, NONE, PAY3), + TXGBE_PTT(0xBB, IP, IPV4, IGMV, IPV6, UDP, PAY4), + TXGBE_PTT(0xBC, IP, IPV4, IGMV, IPV6, TCP, PAY4), + TXGBE_PTT(0xBD, IP, IPV4, IGMV, IPV6, SCTP, PAY4), + TXGBE_UKN(0xBE), + TXGBE_UKN(0xBF), + + /* IPv6 --> IPv4/IPv6 */ + TXGBE_UKN(0xC0), + TXGBE_PTT(0xC1, IP, IPV6, IPIP, FGV4, NONE, PAY3), + TXGBE_PTT(0xC2, IP, IPV6, IPIP, IPV4, NONE, PAY3), + TXGBE_PTT(0xC3, IP, IPV6, IPIP, IPV4, UDP, PAY4), + TXGBE_PTT(0xC4, IP, IPV6, IPIP, IPV4, TCP, PAY4), + TXGBE_PTT(0xC5, IP, IPV6, IPIP, IPV4, SCTP, PAY4), + TXGBE_UKN(0xC6), + TXGBE_UKN(0xC7), + TXGBE_UKN(0xC8), + TXGBE_PTT(0xC9, IP, IPV6, IPIP, FGV6, NONE, PAY3), + TXGBE_PTT(0xCA, IP, IPV6, IPIP, IPV6, NONE, PAY3), + TXGBE_PTT(0xCB, IP, IPV6, IPIP, IPV6, UDP, PAY4), + TXGBE_PTT(0xCC, IP, IPV6, IPIP, IPV6, TCP, PAY4), + TXGBE_PTT(0xCD, IP, IPV6, IPIP, IPV6, SCTP, PAY4), + TXGBE_UKN(0xCE), + TXGBE_UKN(0xCF), + + /* IPv6 --> GRE/NAT -> NONE/IPv4/IPv6 */ + TXGBE_PTT(0xD0, IP, IPV6, IG, NONE, NONE, PAY3), + TXGBE_PTT(0xD1, IP, IPV6, IG, FGV4, NONE, PAY3), + TXGBE_PTT(0xD2, IP, IPV6, IG, IPV4, NONE, PAY3), + TXGBE_PTT(0xD3, IP, IPV6, IG, IPV4, UDP, PAY4), + TXGBE_PTT(0xD4, IP, IPV6, IG, IPV4, TCP, PAY4), + TXGBE_PTT(0xD5, IP, IPV6, IG, IPV4, SCTP, PAY4), + TXGBE_UKN(0xD6), + TXGBE_UKN(0xD7), + TXGBE_UKN(0xD8), + TXGBE_PTT(0xD9, IP, IPV6, IG, FGV6, NONE, PAY3), + TXGBE_PTT(0xDA, IP, IPV6, IG, IPV6, NONE, PAY3), + TXGBE_PTT(0xDB, IP, IPV6, IG, IPV6, UDP, PAY4), + TXGBE_PTT(0xDC, IP, IPV6, IG, IPV6, TCP, PAY4), + TXGBE_PTT(0xDD, IP, IPV6, IG, IPV6, SCTP, PAY4), + TXGBE_UKN(0xDE), + TXGBE_UKN(0xDF), + + /* IPv6 --> GRE/NAT -> MAC -> NONE/IPv4/IPv6 */ + TXGBE_PTT(0xE0, IP, IPV6, IGM, NONE, NONE, PAY3), + TXGBE_PTT(0xE1, IP, IPV6, IGM, FGV4, NONE, PAY3), + TXGBE_PTT(0xE2, IP, IPV6, IGM, IPV4, NONE, PAY3), + TXGBE_PTT(0xE3, IP, IPV6, IGM, IPV4, UDP, PAY4), + TXGBE_PTT(0xE4, IP, IPV6, IGM, IPV4, TCP, PAY4), + TXGBE_PTT(0xE5, IP, IPV6, IGM, IPV4, SCTP, PAY4), + TXGBE_UKN(0xE6), + TXGBE_UKN(0xE7), + TXGBE_UKN(0xE8), + TXGBE_PTT(0xE9, IP, IPV6, IGM, FGV6, NONE, PAY3), + TXGBE_PTT(0xEA, IP, IPV6, IGM, IPV6, NONE, PAY3), + TXGBE_PTT(0xEB, IP, IPV6, IGM, IPV6, UDP, PAY4), + TXGBE_PTT(0xEC, IP, IPV6, IGM, IPV6, TCP, PAY4), + TXGBE_PTT(0xED, IP, IPV6, IGM, IPV6, SCTP, PAY4), + TXGBE_UKN(0xEE), + TXGBE_UKN(0xEF), + + /* IPv6 --> GRE/NAT -> MAC--> NONE/IPv */ + TXGBE_PTT(0xF0, IP, IPV6, IGMV, NONE, NONE, PAY3), + TXGBE_PTT(0xF1, IP, IPV6, IGMV, FGV4, NONE, PAY3), + TXGBE_PTT(0xF2, IP, IPV6, IGMV, IPV4, NONE, PAY3), + TXGBE_PTT(0xF3, IP, IPV6, IGMV, IPV4, UDP, PAY4), + TXGBE_PTT(0xF4, IP, IPV6, IGMV, IPV4, TCP, PAY4), + TXGBE_PTT(0xF5, IP, IPV6, IGMV, IPV4, SCTP, PAY4), + TXGBE_UKN(0xF6), + TXGBE_UKN(0xF7), + TXGBE_UKN(0xF8), + TXGBE_PTT(0xF9, IP, IPV6, IGMV, FGV6, NONE, PAY3), + TXGBE_PTT(0xFA, IP, IPV6, IGMV, IPV6, NONE, PAY3), + TXGBE_PTT(0xFB, IP, IPV6, IGMV, IPV6, UDP, PAY4), + TXGBE_PTT(0xFC, IP, IPV6, IGMV, IPV6, TCP, PAY4), + TXGBE_PTT(0xFD, IP, IPV6, IGMV, IPV6, SCTP, PAY4), + TXGBE_UKN(0xFE), + TXGBE_UKN(0xFF), +}; + + +void txgbe_init_mac_link_ops(struct txgbe_hw *hw) +{ + struct txgbe_mac_info *mac = &hw->mac; + + DEBUGFUNC("\n"); + + /* + * enable the laser control functions for SFP+ fiber + * and MNG not enabled + */ + if ((TCALL(hw, mac.ops.get_media_type) == txgbe_media_type_fiber) && + !txgbe_mng_present(hw)) { + mac->ops.disable_tx_laser = + txgbe_disable_tx_laser_multispeed_fiber; + mac->ops.enable_tx_laser = + txgbe_enable_tx_laser_multispeed_fiber; + mac->ops.flap_tx_laser = txgbe_flap_tx_laser_multispeed_fiber; + + } else { + mac->ops.disable_tx_laser = + txgbe_disable_tx_laser_multispeed_fiber; + mac->ops.enable_tx_laser = + txgbe_enable_tx_laser_multispeed_fiber; + mac->ops.flap_tx_laser = txgbe_flap_tx_laser_multispeed_fiber; + } + + if (hw->phy.multispeed_fiber) { + /* Set up dual speed SFP+ support */ + mac->ops.setup_link = txgbe_setup_mac_link_multispeed_fiber; + mac->ops.setup_mac_link = txgbe_setup_mac_link; + mac->ops.set_rate_select_speed = + txgbe_set_hard_rate_select_speed; + } else { + mac->ops.setup_link = txgbe_setup_mac_link; + mac->ops.set_rate_select_speed = + txgbe_set_hard_rate_select_speed; + } +} + +/** + * txgbe_init_phy_ops - PHY/SFP specific init + * @hw: pointer to hardware structure + * + * Initialize any function pointers that were not able to be + * set during init_shared_code because the PHY/SFP type was + * not known. Perform the SFP init if necessary. + * + **/ +s32 txgbe_init_phy_ops(struct txgbe_hw *hw) +{ + struct txgbe_mac_info *mac = &hw->mac; + s32 ret_val = 0; + + DEBUGFUNC("\n"); + + txgbe_init_i2c(hw); + /* Identify the PHY or SFP module */ + ret_val = TCALL(hw, phy.ops.identify); + if (ret_val == TXGBE_ERR_SFP_NOT_SUPPORTED) + goto init_phy_ops_out; + + /* Setup function pointers based on detected SFP module and speeds */ + txgbe_init_mac_link_ops(hw); + if (hw->phy.sfp_type != txgbe_sfp_type_unknown) + hw->phy.ops.reset = NULL; + + /* If copper media, overwrite with copper function pointers */ + if (TCALL(hw, mac.ops.get_media_type) == txgbe_media_type_copper) { + hw->phy.type = txgbe_phy_xaui; + if ((hw->subsystem_id & 0xF0) != TXGBE_ID_SFI_XAUI) { + mac->ops.setup_link = txgbe_setup_copper_link; + mac->ops.get_link_capabilities = + txgbe_get_copper_link_capabilities; + } + } + +init_phy_ops_out: + return ret_val; +} + + +/** + * txgbe_init_ops - Inits func ptrs and MAC type + * @hw: pointer to hardware structure + * + * Initialize the function pointers and assign the MAC type for sapphire. + * Does not touch the hardware. + **/ + +s32 txgbe_init_ops(struct txgbe_hw *hw) +{ + struct txgbe_mac_info *mac = &hw->mac; + struct txgbe_phy_info *phy = &hw->phy; + struct txgbe_eeprom_info *eeprom = &hw->eeprom; + struct txgbe_flash_info *flash = &hw->flash; + s32 ret_val = 0; + + DEBUGFUNC("\n"); + + /* PHY */ + phy->ops.reset = txgbe_reset_phy; + phy->ops.read_reg = txgbe_read_phy_reg; + phy->ops.write_reg = txgbe_write_phy_reg; + phy->ops.read_reg_mdi = txgbe_read_phy_reg_mdi; + phy->ops.write_reg_mdi = txgbe_write_phy_reg_mdi; + phy->ops.setup_link = txgbe_setup_phy_link; + phy->ops.setup_link_speed = txgbe_setup_phy_link_speed; + phy->ops.read_i2c_byte = txgbe_read_i2c_byte; + phy->ops.write_i2c_byte = txgbe_write_i2c_byte; + phy->ops.read_i2c_sff8472 = txgbe_read_i2c_sff8472; + phy->ops.read_i2c_eeprom = txgbe_read_i2c_eeprom; + phy->ops.write_i2c_eeprom = txgbe_write_i2c_eeprom; + phy->ops.identify_sfp = txgbe_identify_module; + phy->sfp_type = txgbe_sfp_type_unknown; + phy->ops.check_overtemp = txgbe_tn_check_overtemp; + phy->ops.identify = txgbe_identify_phy; + phy->ops.init = txgbe_init_phy_ops; + + /* MAC */ + mac->ops.init_hw = txgbe_init_hw; + mac->ops.clear_hw_cntrs = txgbe_clear_hw_cntrs; + mac->ops.get_mac_addr = txgbe_get_mac_addr; + mac->ops.stop_adapter = txgbe_stop_adapter; + mac->ops.get_bus_info = txgbe_get_bus_info; + mac->ops.set_lan_id = txgbe_set_lan_id_multi_port_pcie; + mac->ops.acquire_swfw_sync = txgbe_acquire_swfw_sync; + mac->ops.release_swfw_sync = txgbe_release_swfw_sync; + mac->ops.reset_hw = txgbe_reset_hw; + mac->ops.get_media_type = txgbe_get_media_type; + mac->ops.disable_sec_rx_path = txgbe_disable_sec_rx_path; + mac->ops.enable_sec_rx_path = txgbe_enable_sec_rx_path; + mac->ops.enable_rx_dma = txgbe_enable_rx_dma; + mac->ops.start_hw = txgbe_start_hw; + mac->ops.get_san_mac_addr = txgbe_get_san_mac_addr; + mac->ops.set_san_mac_addr = txgbe_set_san_mac_addr; + mac->ops.get_device_caps = txgbe_get_device_caps; + mac->ops.get_wwn_prefix = txgbe_get_wwn_prefix; + mac->ops.setup_eee = txgbe_setup_eee; + + /* LEDs */ + mac->ops.led_on = txgbe_led_on; + mac->ops.led_off = txgbe_led_off; + + /* RAR, Multicast, VLAN */ + mac->ops.set_rar = txgbe_set_rar; + mac->ops.clear_rar = txgbe_clear_rar; + mac->ops.init_rx_addrs = txgbe_init_rx_addrs; + mac->ops.update_uc_addr_list = txgbe_update_uc_addr_list; + mac->ops.update_mc_addr_list = txgbe_update_mc_addr_list; + mac->ops.enable_mc = txgbe_enable_mc; + mac->ops.disable_mc = txgbe_disable_mc; + mac->ops.enable_rx = txgbe_enable_rx; + mac->ops.disable_rx = txgbe_disable_rx; + mac->ops.set_vmdq_san_mac = txgbe_set_vmdq_san_mac; + mac->ops.insert_mac_addr = txgbe_insert_mac_addr; + mac->rar_highwater = 1; + mac->ops.set_vfta = txgbe_set_vfta; + mac->ops.set_vlvf = txgbe_set_vlvf; + mac->ops.clear_vfta = txgbe_clear_vfta; + mac->ops.init_uta_tables = txgbe_init_uta_tables; + mac->ops.set_mac_anti_spoofing = txgbe_set_mac_anti_spoofing; + mac->ops.set_vlan_anti_spoofing = txgbe_set_vlan_anti_spoofing; + mac->ops.set_ethertype_anti_spoofing = + txgbe_set_ethertype_anti_spoofing; + + /* Flow Control */ + mac->ops.fc_enable = txgbe_fc_enable; + mac->ops.setup_fc = txgbe_setup_fc; + + /* Link */ + mac->ops.get_link_capabilities = txgbe_get_link_capabilities; + mac->ops.check_link = txgbe_check_mac_link; + mac->ops.setup_rxpba = txgbe_set_rxpba; + mac->mcft_size = TXGBE_SP_MC_TBL_SIZE; + mac->vft_size = TXGBE_SP_VFT_TBL_SIZE; + mac->num_rar_entries = TXGBE_SP_RAR_ENTRIES; + mac->rx_pb_size = TXGBE_SP_RX_PB_SIZE; + mac->max_rx_queues = TXGBE_SP_MAX_RX_QUEUES; + mac->max_tx_queues = TXGBE_SP_MAX_TX_QUEUES; + mac->max_msix_vectors = txgbe_get_pcie_msix_count(hw); + + mac->arc_subsystem_valid = (rd32(hw, TXGBE_MIS_ST) & + TXGBE_MIS_ST_MNG_INIT_DN) ? true : false; + + hw->mbx.ops.init_params = txgbe_init_mbx_params_pf; + + /* EEPROM */ + eeprom->ops.init_params = txgbe_init_eeprom_params; + eeprom->ops.calc_checksum = txgbe_calc_eeprom_checksum; + eeprom->ops.read = txgbe_read_ee_hostif; + eeprom->ops.read_buffer = txgbe_read_ee_hostif_buffer; + eeprom->ops.write = txgbe_write_ee_hostif; + eeprom->ops.write_buffer = txgbe_write_ee_hostif_buffer; + eeprom->ops.update_checksum = txgbe_update_eeprom_checksum; + eeprom->ops.validate_checksum = txgbe_validate_eeprom_checksum; + + /* FLASH */ + flash->ops.init_params = txgbe_init_flash_params; + flash->ops.read_buffer = txgbe_read_flash_buffer; + flash->ops.write_buffer = txgbe_write_flash_buffer; + + /* Manageability interface */ + mac->ops.set_fw_drv_ver = txgbe_set_fw_drv_ver; + + mac->ops.get_thermal_sensor_data = + txgbe_get_thermal_sensor_data; + mac->ops.init_thermal_sensor_thresh = + txgbe_init_thermal_sensor_thresh; + + return ret_val; +} + +/** + * txgbe_get_link_capabilities - Determines link capabilities + * @hw: pointer to hardware structure + * @speed: pointer to link speed + * @autoneg: true when autoneg or autotry is enabled + * + * Determines the link capabilities by reading the AUTOC register. + **/ +s32 txgbe_get_link_capabilities(struct txgbe_hw *hw, + u32 *speed, + bool *autoneg) +{ + s32 status = 0; + u32 sr_pcs_ctl, sr_pma_mmd_ctl1, sr_an_mmd_ctl; + u32 sr_an_mmd_adv_reg2; + + DEBUGFUNC("\n"); + + /* Check if 1G SFP module. */ + if (hw->phy.sfp_type == txgbe_sfp_type_1g_cu_core0 || + hw->phy.sfp_type == txgbe_sfp_type_1g_cu_core1 || + hw->phy.sfp_type == txgbe_sfp_type_1g_lx_core0 || + hw->phy.sfp_type == txgbe_sfp_type_1g_lx_core1 || + hw->phy.sfp_type == txgbe_sfp_type_1g_sx_core0 || + hw->phy.sfp_type == txgbe_sfp_type_1g_sx_core1) { + *speed = TXGBE_LINK_SPEED_1GB_FULL; + *autoneg = false; + } else if (hw->phy.multispeed_fiber) { + *speed = TXGBE_LINK_SPEED_10GB_FULL | + TXGBE_LINK_SPEED_1GB_FULL; + *autoneg = true; + } + /* SFP */ + else if (txgbe_get_media_type(hw) == txgbe_media_type_fiber) { + *speed = TXGBE_LINK_SPEED_10GB_FULL; + *autoneg = false; + } + /* XAUI */ + else if ((txgbe_get_media_type(hw) == txgbe_media_type_copper) && + ((hw->subsystem_id & 0xF0) == TXGBE_ID_XAUI || + (hw->subsystem_id & 0xF0) == TXGBE_ID_SFI_XAUI)) { + *speed = TXGBE_LINK_SPEED_10GB_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_10GBASE_T; + } + /* SGMII */ + else if ((hw->subsystem_id & 0xF0) == TXGBE_ID_SGMII) { + *speed = TXGBE_LINK_SPEED_1GB_FULL | + TXGBE_LINK_SPEED_100_FULL | + TXGBE_LINK_SPEED_10_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_1000BASE_T | + TXGBE_PHYSICAL_LAYER_100BASE_TX; + /* MAC XAUI */ + } else if ((hw->subsystem_id & 0xF0) == TXGBE_ID_MAC_XAUI) { + *speed = TXGBE_LINK_SPEED_10GB_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_10GBASE_KX4; + /* MAC SGMII */ + } else if ((hw->subsystem_id & 0xF0) == TXGBE_ID_MAC_SGMII) { + *speed = TXGBE_LINK_SPEED_1GB_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_1000BASE_KX; + } + /* KR KX KX4 */ + else { + /* + * Determine link capabilities based on the stored value, + * which represents EEPROM defaults. If value has not + * been stored, use the current register values. + */ + if (hw->mac.orig_link_settings_stored) { + sr_pcs_ctl = hw->mac.orig_sr_pcs_ctl2; + sr_pma_mmd_ctl1 = hw->mac.orig_sr_pma_mmd_ctl1; + sr_an_mmd_ctl = hw->mac.orig_sr_an_mmd_ctl; + sr_an_mmd_adv_reg2 = hw->mac.orig_sr_an_mmd_adv_reg2; + } else { + sr_pcs_ctl = txgbe_rd32_epcs(hw, TXGBE_SR_PCS_CTL2); + sr_pma_mmd_ctl1 = txgbe_rd32_epcs(hw, + TXGBE_SR_PMA_MMD_CTL1); + sr_an_mmd_ctl = txgbe_rd32_epcs(hw, + TXGBE_SR_AN_MMD_CTL); + sr_an_mmd_adv_reg2 = txgbe_rd32_epcs(hw, + TXGBE_SR_AN_MMD_ADV_REG2); + } + + if ((sr_pcs_ctl & TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_MASK) == + TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X && + (sr_pma_mmd_ctl1 & TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_MASK) + == TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_1G && + (sr_an_mmd_ctl & TXGBE_SR_AN_MMD_CTL_ENABLE) == 0) { + /* 1G or KX - no backplane auto-negotiation */ + *speed = TXGBE_LINK_SPEED_1GB_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_1000BASE_KX; + } else if ((sr_pcs_ctl & TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_MASK) == + TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X && + (sr_pma_mmd_ctl1 & TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_MASK) + == TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_10G && + (sr_an_mmd_ctl & TXGBE_SR_AN_MMD_CTL_ENABLE) == 0) { + *speed = TXGBE_LINK_SPEED_10GB_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_10GBASE_KX4; + } else if ((sr_pcs_ctl & TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_MASK) == + TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_R && + (sr_an_mmd_ctl & TXGBE_SR_AN_MMD_CTL_ENABLE) == 0) { + /* 10 GbE serial link (KR -no backplane auto-negotiation) */ + *speed = TXGBE_LINK_SPEED_10GB_FULL; + *autoneg = false; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_10GBASE_KR; + } else if ((sr_an_mmd_ctl & TXGBE_SR_AN_MMD_CTL_ENABLE)) { + /* KX/KX4/KR backplane auto-negotiation enable */ + *speed = TXGBE_LINK_SPEED_UNKNOWN; + if (sr_an_mmd_adv_reg2 & + TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KR) + *speed |= TXGBE_LINK_SPEED_10GB_FULL; + if (sr_an_mmd_adv_reg2 & + TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KX4) + *speed |= TXGBE_LINK_SPEED_10GB_FULL; + if (sr_an_mmd_adv_reg2 & + TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KX) + *speed |= TXGBE_LINK_SPEED_1GB_FULL; + *autoneg = true; + hw->phy.link_mode = TXGBE_PHYSICAL_LAYER_10GBASE_KR | + TXGBE_PHYSICAL_LAYER_10GBASE_KX4 | + TXGBE_PHYSICAL_LAYER_1000BASE_KX; + } else { + status = TXGBE_ERR_LINK_SETUP; + goto out; + } + } + +out: + return status; +} + +/** + * txgbe_get_media_type - Get media type + * @hw: pointer to hardware structure + * + * Returns the media type (fiber, copper, backplane) + **/ +enum txgbe_media_type txgbe_get_media_type(struct txgbe_hw *hw) +{ + enum txgbe_media_type media_type; + u8 device_type = hw->subsystem_id & 0xF0; + + DEBUGFUNC("\n"); + + /* Detect if there is a copper PHY attached. */ + switch (hw->phy.type) { + case txgbe_phy_cu_unknown: + case txgbe_phy_tn: + media_type = txgbe_media_type_copper; + goto out; + default: + break; + } + + switch (device_type) { + case TXGBE_ID_MAC_XAUI: + case TXGBE_ID_MAC_SGMII: + case TXGBE_ID_KR_KX_KX4: + /* Default device ID is mezzanine card KX/KX4 */ + media_type = txgbe_media_type_backplane; + break; + case TXGBE_ID_SFP: + media_type = txgbe_media_type_fiber; + break; + case TXGBE_ID_XAUI: + case TXGBE_ID_SGMII: + media_type = txgbe_media_type_copper; + break; + case TXGBE_ID_SFI_XAUI: + if (hw->bus.lan_id == 0) + media_type = txgbe_media_type_fiber; + else + media_type = txgbe_media_type_copper; + break; + default: + media_type = txgbe_media_type_unknown; + break; + } +out: + return media_type; +} + +/** + * txgbe_stop_mac_link_on_d3 - Disables link on D3 + * @hw: pointer to hardware structure + * + * Disables link during D3 power down sequence. + * + **/ +void txgbe_stop_mac_link_on_d3(struct txgbe_hw *hw) +{ + /* fix autoc2 */ + UNREFERENCED_PARAMETER(hw); + return; +} + + +/** + * txgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser + * @hw: pointer to hardware structure + * + * The base drivers may require better control over SFP+ module + * PHY states. This includes selectively shutting down the Tx + * laser on the PHY, effectively halting physical link. + **/ +void txgbe_disable_tx_laser_multispeed_fiber(struct txgbe_hw *hw) +{ + u32 esdp_reg = rd32(hw, TXGBE_GPIO_DR); + + /* Blocked by MNG FW so bail */ + txgbe_check_reset_blocked(hw); + + /* Disable Tx laser; allow 100us to go dark per spec */ + esdp_reg |= TXGBE_GPIO_DR_1 | TXGBE_GPIO_DR_0; + wr32(hw, TXGBE_GPIO_DR, esdp_reg); + TXGBE_WRITE_FLUSH(hw); + usec_delay(100); +} + +/** + * txgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser + * @hw: pointer to hardware structure + * + * The base drivers may require better control over SFP+ module + * PHY states. This includes selectively turning on the Tx + * laser on the PHY, effectively starting physical link. + **/ +void txgbe_enable_tx_laser_multispeed_fiber(struct txgbe_hw *hw) +{ + /* Enable Tx laser; allow 100ms to light up */ + wr32m(hw, TXGBE_GPIO_DR, + TXGBE_GPIO_DR_0 | TXGBE_GPIO_DR_1, 0); + TXGBE_WRITE_FLUSH(hw); + msec_delay(100); +} + +/** + * txgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser + * @hw: pointer to hardware structure + * + * When the driver changes the link speeds that it can support, + * it sets autotry_restart to true to indicate that we need to + * initiate a new autotry session with the link partner. To do + * so, we set the speed then disable and re-enable the Tx laser, to + * alert the link partner that it also needs to restart autotry on its + * end. This is consistent with true clause 37 autoneg, which also + * involves a loss of signal. + **/ +void txgbe_flap_tx_laser_multispeed_fiber(struct txgbe_hw *hw) +{ + DEBUGFUNC("\n"); + + /* Blocked by MNG FW so bail */ + txgbe_check_reset_blocked(hw); + + if (hw->mac.autotry_restart) { + txgbe_disable_tx_laser_multispeed_fiber(hw); + txgbe_enable_tx_laser_multispeed_fiber(hw); + hw->mac.autotry_restart = false; + } +} + +/** + * txgbe_set_hard_rate_select_speed - Set module link speed + * @hw: pointer to hardware structure + * @speed: link speed to set + * + * Set module link speed via RS0/RS1 rate select pins. + */ +void txgbe_set_hard_rate_select_speed(struct txgbe_hw *hw, + u32 speed) +{ + u32 esdp_reg = rd32(hw, TXGBE_GPIO_DR); + + switch (speed) { + case TXGBE_LINK_SPEED_10GB_FULL: + esdp_reg |= TXGBE_GPIO_DR_5 | TXGBE_GPIO_DR_4; + break; + case TXGBE_LINK_SPEED_1GB_FULL: + esdp_reg &= ~(TXGBE_GPIO_DR_5 | TXGBE_GPIO_DR_4); + break; + default: + DEBUGOUT("Invalid fixed module speed\n"); + return; + } + + wr32(hw, TXGBE_GPIO_DDR, + TXGBE_GPIO_DDR_5 | TXGBE_GPIO_DDR_4 | + TXGBE_GPIO_DDR_1 | TXGBE_GPIO_DDR_0); + + wr32(hw, TXGBE_GPIO_DR, esdp_reg); + + TXGBE_WRITE_FLUSH(hw); +} + +s32 txgbe_enable_rx_adapter(struct txgbe_hw *hw) +{ + u32 value; + + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_CTL); + value |= 1 << 12; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL, value); + + value = 0; + while (!(value >> 11)) { + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_AD_ACK); + msleep(1); + } + + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_CTL); + value &= ~(1 << 12); + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL, value); + + return 0; +} + +s32 txgbe_set_sgmii_an37_ability(struct txgbe_hw *hw) +{ + u32 value; + + txgbe_wr32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1, 0x3002); + /* for sgmii + external phy, set to 0x0105 (mac sgmii mode) */ + if ((hw->subsystem_id & 0xF0) == TXGBE_ID_SGMII) { + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_AN_CTL, 0x0105); + } + /* for sgmii direct link, set to 0x010c (phy sgmii mode) */ + if ((hw->subsystem_id & 0xF0) == TXGBE_ID_MAC_SGMII) { + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_AN_CTL, 0x010c); + } + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_DIGI_CTL, 0x0200); + value = txgbe_rd32_epcs(hw, TXGBE_SR_MII_MMD_CTL); + value = (value & ~0x1200) | (0x1 << 12) | (0x1 << 9); + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_CTL, value); + return 0; +} + + +s32 txgbe_set_link_to_kr(struct txgbe_hw *hw, bool autoneg) +{ + u32 i; + s32 status = 0; + u32 value = 0; + struct txgbe_adapter *adapter = hw->back; + + /* 1. Wait xpcs power-up good */ + for (i = 0; i < TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_MASK) == + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_POWER_GOOD) + break; + msleep(10); + } + if (i == TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME) { + status = TXGBE_ERR_XPCS_POWER_UP_FAILED; + goto out; + } + e_dev_info("It is set to kr.\n"); + + txgbe_wr32_epcs(hw, 0x78001, 0x7); + txgbe_wr32_epcs(hw, 0x18035, 0x00FC); + txgbe_wr32_epcs(hw, 0x18055, 0x00FC); + + if (1) { + /* 2. Disable xpcs AN-73 */ + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x3000); + +#if 0 + if (autoneg) + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x3000); + else + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0); +#endif + txgbe_wr32_epcs(hw, 0x78003, 0x1); + if (!(adapter->backplane_an == 1)) { + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0000); + txgbe_wr32_epcs(hw, 0x78003, 0x0); + } + + if (KR_SET == 1 || adapter->ffe_set == TXGBE_BP_M_KR) { + e_dev_info("Set KR TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + value = (0x1804 & ~0x3F3F); + value |= adapter->ffe_main << 8 | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + + value = (0x50 & ~0x7F) | (1 << 6)| adapter->ffe_post; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } + + if (KR_AN73_PRESET == 1) { + txgbe_wr32_epcs(hw, 0x18037, 0x80); + } + + if (KR_POLLING == 1) { + txgbe_wr32_epcs(hw, 0x18006, 0xffff); + txgbe_wr32_epcs(hw, 0x18008, 0xA697); + } + + /* 3. Set VR_XS_PMA_Gen5_12G_MPLLA_CTRL3 Register */ + /* Bit[10:0](MPLLA_BANDWIDTH) = 11'd123 (default: 11'd16) */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL3, + TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_10GBASER_KR); + + /* 4. Set VR_XS_PMA_Gen5_12G_MISC_CTRL0 Register */ + /* Bit[12:8](RX_VREF_CTRL) = 5'hF (default: 5'h11) */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, + 0xCF00); + + /* 5. Set VR_XS_PMA_Gen5_12G_RX_EQ_CTRL0 Register */ + /* Bit[15:8](VGA1/2_GAIN_0) = 8'h77, Bit[7:5](CTLE_POLE_0) = 3'h2 + * Bit[4:0](CTLE_BOOST_0) = 4'hA + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0, + 0x774A); + + /* 6. Set VR_MII_Gen5_12G_RX_GENCTRL3 Register */ + /* Bit[2:0](LOS_TRSHLD_0) = 3'h4 (default: 3) */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL3, + 0x0004); + /* 7. Initialize the mode by setting VR XS or PCS MMD Digital */ + /* Control1 Register Bit[15](VR_RST) */ + txgbe_wr32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1, + 0xA000); + /* wait phy initialization done */ + for (i = 0; i < TXGBE_PHY_INIT_DONE_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST) == 0) + break; + msleep(100); + } + if (i == TXGBE_PHY_INIT_DONE_POLLING_TIME) { + status = TXGBE_ERR_PHY_INIT_NOT_DONE; + goto out; + } + } else { + txgbe_wr32_epcs(hw, TXGBE_VR_AN_KR_MODE_CL, + 0x1); + } +out: + return status; +} + +s32 txgbe_set_link_to_kx4(struct txgbe_hw *hw, bool autoneg) +{ + u32 i; + s32 status = 0; + u32 value; + struct txgbe_adapter *adapter = hw->back; + + /* check link status, if already set, skip setting it again */ + if (hw->link_status == TXGBE_LINK_STATUS_KX4) { + goto out; + } + e_dev_info("It is set to kx4.\n"); + + /* 1. Wait xpcs power-up good */ + for (i = 0; i < TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_MASK) == + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_POWER_GOOD) + break; + msleep(10); + } + if (i == TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME) { + status = TXGBE_ERR_XPCS_POWER_UP_FAILED; + goto out; + } + + wr32m(hw, TXGBE_MAC_TX_CFG, TXGBE_MAC_TX_CFG_TE, + ~TXGBE_MAC_TX_CFG_TE); + + /* 2. Disable xpcs AN-73 */ + if (!autoneg) + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0); + else + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x3000); + + if (hw->revision_id == TXGBE_SP_MPW) { + /* Disable PHY MPLLA */ + txgbe_wr32_ephy(hw, 0x4, 0x2501); + /* Reset rx lane0-3 clock */ + txgbe_wr32_ephy(hw, 0x1005, 0x4001); + txgbe_wr32_ephy(hw, 0x1105, 0x4001); + txgbe_wr32_ephy(hw, 0x1205, 0x4001); + txgbe_wr32_ephy(hw, 0x1305, 0x4001); + } else { + /* Disable PHY MPLLA for eth mode change(after ECO) */ + txgbe_wr32_ephy(hw, 0x4, 0x250A); + TXGBE_WRITE_FLUSH(hw); + msleep(1); + + /* Set the eth change_mode bit first in mis_rst register + * for corresponding LAN port + */ + if (hw->bus.lan_id == 0) + wr32(hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_LAN0_CHG_ETH_MODE); + else + wr32(hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_LAN1_CHG_ETH_MODE); + } + + /* Set SR PCS Control2 Register Bits[1:0] = 2'b01 PCS_TYPE_SEL: non KR */ + txgbe_wr32_epcs(hw, TXGBE_SR_PCS_CTL2, + TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X); + /* Set SR PMA MMD Control1 Register Bit[13] = 1'b1 SS13: 10G speed */ + txgbe_wr32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1, + TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_10G); + + value = (0xf5f0 & ~0x7F0) | (0x5 << 8) | (0x7 << 5) | 0xF0; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GENCTRL1, value); + + if ((hw->subsystem_id & 0xF0) == TXGBE_ID_MAC_XAUI) + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, 0xCF00); + else + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, 0x4F00); + + if (KX4_SET == 1 || adapter->ffe_set) { + e_dev_info("Set KX4 TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + value = (0x1804 & ~0x3F3F); + value |= adapter->ffe_main << 8 | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + + value = (0x50 & ~0x7F) | (1 << 6)| adapter->ffe_post; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } else { + value = (0x1804 & ~0x3F3F); + value |= 40 << 8 ; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + + value = (0x50 & ~0x7F) | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + + } + for (i = 0; i < 4; i++) { + if (i == 0) + value = (0x45 & ~0xFFFF) | (0x7 << 12) | (0x7 << 8) | 0x6; + else + value = (0xff06 & ~0xFFFF) | (0x7 << 12) | (0x7 << 8) | 0x6; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0 + i, value); + } + + value = 0x0 & ~0x7777; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_ATT_LVL0, value); + + txgbe_wr32_epcs(hw, TXGBE_PHY_DFE_TAP_CTL0, 0x0); + + value = (0x6db & ~0xFFF) | (0x1 << 9) | (0x1 << 6) | (0x1 << 3) | 0x1; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL3, value); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY MPLLA */ + /* Control 0 Register Bit[7:0] = 8'd40 MPLLA_MULTIPLIER */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL0, + TXGBE_PHY_MPLLA_CTL0_MULTIPLIER_OTHER); + /* Set VR XS, PMA or MII Synopsys Enterprise Gen5 12G PHY MPLLA */ + /* Control 3 Register Bit[10:0] = 11'd86 MPLLA_BANDWIDTH */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL3, + TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_OTHER); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO */ + /* Calibration Load 0 Register Bit[12:0] = 13'd1360 VCO_LD_VAL_0 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD0, + TXGBE_PHY_VCO_CAL_LD0_OTHER); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO */ + /* Calibration Load 1 Register Bit[12:0] = 13'd1360 VCO_LD_VAL_1 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD1, + TXGBE_PHY_VCO_CAL_LD0_OTHER); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO */ + /* Calibration Load 2 Register Bit[12:0] = 13'd1360 VCO_LD_VAL_2 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD2, + TXGBE_PHY_VCO_CAL_LD0_OTHER); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO */ + /* Calibration Load 3 Register Bit[12:0] = 13'd1360 VCO_LD_VAL_3 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD3, + TXGBE_PHY_VCO_CAL_LD0_OTHER); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO */ + /* Calibration Reference 0 Register Bit[5:0] = 6'd34 VCO_REF_LD_0/1 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_REF0, + 0x2222); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO */ + /* Calibration Reference 1 Register Bit[5:0] = 6'd34 VCO_REF_LD_2/3 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_REF1, + 0x2222); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY AFE-DFE */ + /* Enable Register Bit[7:0] = 8'd0 AFE_EN_0/3_1, DFE_EN_0/3_1 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE, + 0x0); + + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx */ + /* Equalization Control 4 Register Bit[3:0] = 4'd0 CONT_ADAPT_0/3_1 */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL, + 0x00F0); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Tx Rate */ + /* Control Register Bit[14:12], Bit[10:8], Bit[6:4], Bit[2:0], + * all rates to 3'b010 TX0/1/2/3_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_RATE_CTL, + 0x2222); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx Rate */ + /* Control Register Bit[13:12], Bit[9:8], Bit[5:4], Bit[1:0], + * all rates to 2'b10 RX0/1/2/3_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_RATE_CTL, + 0x2222); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Tx General */ + /* Control 2 Register Bit[15:8] = 2'b01 TX0/1/2/3_WIDTH: 10bits */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GEN_CTL2, + 0x5500); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx General */ + /* Control 2 Register Bit[15:8] = 2'b01 RX0/1/2/3_WIDTH: 10bits */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL2, + 0x5500); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY MPLLA Control + * 2 Register Bit[10:8] = 3'b010 + * MPLLA_DIV16P5_CLK_EN=0, MPLLA_DIV10_CLK_EN=1, MPLLA_DIV8_CLK_EN=0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL2, + TXGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_10); + + txgbe_wr32_epcs(hw, 0x1f0000, 0x0); + txgbe_wr32_epcs(hw, 0x1f8001, 0x0); + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_DIGI_CTL, 0x0); + + if (KX4_TXRX_PIN == 1) + txgbe_wr32_epcs(hw, 0x38001, 0xff); + /* 10. Initialize the mode by setting VR XS or PCS MMD Digital Control1 + * Register Bit[15](VR_RST) + */ + txgbe_wr32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1, 0xA000); + /* wait phy initialization done */ + for (i = 0; i < TXGBE_PHY_INIT_DONE_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST) == 0) + break; + msleep(100); + } + + /* if success, set link status */ + hw->link_status = TXGBE_LINK_STATUS_KX4; + + if (i == TXGBE_PHY_INIT_DONE_POLLING_TIME) { + status = TXGBE_ERR_PHY_INIT_NOT_DONE; + goto out; + } + +out: + return status; +} + + +s32 txgbe_set_link_to_kx(struct txgbe_hw *hw, + u32 speed, + bool autoneg) +{ + u32 i; + s32 status = 0; + u32 wdata = 0; + u32 value; + struct txgbe_adapter *adapter = hw->back; + + /* check link status, if already set, skip setting it again */ + if (hw->link_status == TXGBE_LINK_STATUS_KX) { + goto out; + } + e_dev_info("It is set to kx. speed =0x%x\n", speed); + + txgbe_wr32_epcs(hw, 0x18035, 0x00FC); + txgbe_wr32_epcs(hw, 0x18055, 0x00FC); + + /* 1. Wait xpcs power-up good */ + for (i = 0; i < TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_MASK) == + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_POWER_GOOD) + break; + msleep(10); + } + if (i == TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME) { + status = TXGBE_ERR_XPCS_POWER_UP_FAILED; + goto out; + } + + wr32m(hw, TXGBE_MAC_TX_CFG, TXGBE_MAC_TX_CFG_TE, + ~TXGBE_MAC_TX_CFG_TE); + + /* 2. Disable xpcs AN-73 */ + if (!autoneg) + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0); + else + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x3000); + + if (hw->revision_id == TXGBE_SP_MPW) { + /* Disable PHY MPLLA */ + txgbe_wr32_ephy(hw, 0x4, 0x2401); + /* Reset rx lane0 clock */ + txgbe_wr32_ephy(hw, 0x1005, 0x4001); + } else { + /* Disable PHY MPLLA for eth mode change(after ECO) */ + txgbe_wr32_ephy(hw, 0x4, 0x240A); + TXGBE_WRITE_FLUSH(hw); + msleep(1); + + /* Set the eth change_mode bit first in mis_rst register */ + /* for corresponding LAN port */ + if (hw->bus.lan_id == 0) + wr32(hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_LAN0_CHG_ETH_MODE); + else + wr32(hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_LAN1_CHG_ETH_MODE); + } + + /* Set SR PCS Control2 Register Bits[1:0] = 2'b01 PCS_TYPE_SEL: non KR */ + txgbe_wr32_epcs(hw, TXGBE_SR_PCS_CTL2, + TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X); + + /* Set SR PMA MMD Control1 Register Bit[13] = 1'b0 SS13: 1G speed */ + txgbe_wr32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1, + TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_1G); + + /* Set SR MII MMD Control Register to corresponding speed: {Bit[6], + * Bit[13]}=[2'b00,2'b01,2'b10]->[10M,100M,1G] + */ + if (speed == TXGBE_LINK_SPEED_100_FULL) + wdata = 0x2100; + else if (speed == TXGBE_LINK_SPEED_1GB_FULL) + wdata = 0x0140; + else if (speed == TXGBE_LINK_SPEED_10_FULL) + wdata = 0x0100; + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_CTL, + wdata); + + value = (0xf5f0 & ~0x710) | (0x5 << 8)| 0x10; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GENCTRL1, value); + + if (KX_SGMII == 1) + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, 0x4F00); + else + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, 0xCF00); + + if (KX_SET == 1 || adapter->ffe_set == TXGBE_BP_M_KX) { + e_dev_info("Set KX TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + /* 5. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL0 Register Bit[13:8](TX_EQ_MAIN) + * = 6'd30, Bit[5:0](TX_EQ_PRE) = 6'd4 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0); + value = (value & ~0x3F3F) | (adapter->ffe_main << 8) | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + /* 6. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL1 Register Bit[6](TX_EQ_OVR_RIDE) + * = 1'b1, Bit[5:0](TX_EQ_POST) = 6'd36 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1); + value = (value & ~0x7F) | adapter->ffe_post | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } else { + value = (0x1804 & ~0x3F3F) | (24 << 8) | 4; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + + value = (0x50 & ~0x7F) | 16 | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } + + for (i = 0; i < 4; i++) { + if (i) { + value = 0xff06; + } else { + value = (0x45 & ~0xFFFF) | (0x7 << 12) | (0x7 << 8) | 0x6; + } + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0 + i, value); + } + + value = 0x0 & ~0x7; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_ATT_LVL0, value); + + txgbe_wr32_epcs(hw, TXGBE_PHY_DFE_TAP_CTL0, 0x0); + + value = (0x6db & ~0x7) | 0x4; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL3, value); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY MPLLA Control + * 0 Register Bit[7:0] = 8'd32 MPLLA_MULTIPLIER + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL0, + TXGBE_PHY_MPLLA_CTL0_MULTIPLIER_1GBASEX_KX); + + /* Set VR XS, PMA or MII Synopsys Enterprise Gen5 12G PHY MPLLA Control 3 + * Register Bit[10:0] = 11'd70 MPLLA_BANDWIDTH + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL3, + TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_1GBASEX_KX); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO + * Calibration Load 0 Register Bit[12:0] = 13'd1344 VCO_LD_VAL_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD0, + TXGBE_PHY_VCO_CAL_LD0_1GBASEX_KX); + + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD1, 0x549); + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD2, 0x549); + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD3, 0x549); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO + * Calibration Reference 0 Register Bit[5:0] = 6'd42 VCO_REF_LD_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_REF0, + TXGBE_PHY_VCO_CAL_REF0_LD0_1GBASEX_KX); + + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_REF1, 0x2929); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY AFE-DFE Enable + * Register Bit[4], Bit[0] = 1'b0 AFE_EN_0, DFE_EN_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE, + 0x0); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx + * Equalization Control 4 Register Bit[0] = 1'b0 CONT_ADAPT_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL, + 0x0010); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Tx Rate + * Control Register Bit[2:0] = 3'b011 TX0_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_RATE_CTL, + TXGBE_PHY_TX_RATE_CTL_TX0_RATE_1GBASEX_KX); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx Rate + * Control Register Bit[2:0] = 3'b011 RX0_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_RATE_CTL, + TXGBE_PHY_RX_RATE_CTL_RX0_RATE_1GBASEX_KX); + + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Tx General + * Control 2 Register Bit[9:8] = 2'b01 TX0_WIDTH: 10bits + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GEN_CTL2, + TXGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_OTHER); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx General + * Control 2 Register Bit[9:8] = 2'b01 RX0_WIDTH: 10bits + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL2, + TXGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_OTHER); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY MPLLA Control + * 2 Register Bit[10:8] = 3'b010 MPLLA_DIV16P5_CLK_EN=0, + * MPLLA_DIV10_CLK_EN=1, MPLLA_DIV8_CLK_EN=0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL2, + TXGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_10); + /* VR MII MMD AN Control Register Bit[8] = 1'b1 MII_CTRL */ + /* Set to 8bit MII (required in 10M/100M SGMII) */ + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_AN_CTL, + 0x0100); + + /* 10. Initialize the mode by setting VR XS or PCS MMD Digital Control1 + * Register Bit[15](VR_RST) + */ + txgbe_wr32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1, 0xA000); + /* wait phy initialization done */ + for (i = 0; i < TXGBE_PHY_INIT_DONE_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST) == 0) + break; + msleep(100); + } + + /* if success, set link status */ + hw->link_status = TXGBE_LINK_STATUS_KX; + + if (i == TXGBE_PHY_INIT_DONE_POLLING_TIME) { + status = TXGBE_ERR_PHY_INIT_NOT_DONE; + goto out; + } + +out: + return status; +} + +s32 txgbe_set_link_to_sfi(struct txgbe_hw *hw, + u32 speed) +{ + u32 i; + s32 status = 0; + u32 value = 0; + struct txgbe_adapter *adapter = hw->back; + + /* Set the module link speed */ + TCALL(hw, mac.ops.set_rate_select_speed, + speed); + + e_dev_info("It is set to sfi.\n"); + /* 1. Wait xpcs power-up good */ + for (i = 0; i < TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_MASK) == + TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_POWER_GOOD) + break; + msleep(10); + } + if (i == TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME) { + status = TXGBE_ERR_XPCS_POWER_UP_FAILED; + goto out; + } + + wr32m(hw, TXGBE_MAC_TX_CFG, TXGBE_MAC_TX_CFG_TE, + ~TXGBE_MAC_TX_CFG_TE); + + /* 2. Disable xpcs AN-73 */ + txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0); + + if (hw->revision_id != TXGBE_SP_MPW) { + /* Disable PHY MPLLA for eth mode change(after ECO) */ + txgbe_wr32_ephy(hw, 0x4, 0x243A); + TXGBE_WRITE_FLUSH(hw); + msleep(1); + /* Set the eth change_mode bit first in mis_rst register + * for corresponding LAN port + */ + if (hw->bus.lan_id == 0) + wr32(hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_LAN0_CHG_ETH_MODE); + else + wr32(hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_LAN1_CHG_ETH_MODE); + } + if (speed == TXGBE_LINK_SPEED_10GB_FULL) { + /* @. Set SR PCS Control2 Register Bits[1:0] = 2'b00 PCS_TYPE_SEL: KR */ + txgbe_wr32_epcs(hw, TXGBE_SR_PCS_CTL2, 0); + value = txgbe_rd32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1); + value = value | 0x2000; + txgbe_wr32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1, value); + /* @. Set VR_XS_PMA_Gen5_12G_MPLLA_CTRL0 Register Bit[7:0] = 8'd33 + * MPLLA_MULTIPLIER + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL0, 0x0021); + /* 3. Set VR_XS_PMA_Gen5_12G_MPLLA_CTRL3 Register + * Bit[10:0](MPLLA_BANDWIDTH) = 11'd0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL3, 0); + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_GENCTRL1); + value = (value & ~0x700) | 0x500; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GENCTRL1, value); + /* 4.Set VR_XS_PMA_Gen5_12G_MISC_CTRL0 Register Bit[12:8](RX_VREF_CTRL) + * = 5'hF + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, 0xCF00); + /* @. Set VR_XS_PMA_Gen5_12G_VCO_CAL_LD0 Register Bit[12:0] = 13'd1353 + * VCO_LD_VAL_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD0, 0x0549); + /* @. Set VR_XS_PMA_Gen5_12G_VCO_CAL_REF0 Register Bit[5:0] = 6'd41 + * VCO_REF_LD_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_REF0, 0x0029); + /* @. Set VR_XS_PMA_Gen5_12G_TX_RATE_CTRL Register Bit[2:0] = 3'b000 + * TX0_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_RATE_CTL, 0); + /* @. Set VR_XS_PMA_Gen5_12G_RX_RATE_CTRL Register Bit[2:0] = 3'b000 + * RX0_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_RATE_CTL, 0); + /* @. Set VR_XS_PMA_Gen5_12G_TX_GENCTRL2 Register Bit[9:8] = 2'b11 + * TX0_WIDTH: 20bits + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GEN_CTL2, 0x0300); + /* @. Set VR_XS_PMA_Gen5_12G_RX_GENCTRL2 Register Bit[9:8] = 2'b11 + * RX0_WIDTH: 20bits + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL2, 0x0300); + /* @. Set VR_XS_PMA_Gen5_12G_MPLLA_CTRL2 Register Bit[10:8] = 3'b110 + * MPLLA_DIV16P5_CLK_EN=1, MPLLA_DIV10_CLK_EN=1, MPLLA_DIV8_CLK_EN=0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL2, 0x0600); + if (SFI_SET == 1 || adapter->ffe_set) { + e_dev_info("Set SFI TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + /* 5. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL0 Register Bit[13:8](TX_EQ_MAIN) + * = 6'd30, Bit[5:0](TX_EQ_PRE) = 6'd4 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0); + value = (value & ~0x3F3F) | (adapter->ffe_main << 8) | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + /* 6. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL1 Register Bit[6](TX_EQ_OVR_RIDE) + * = 1'b1, Bit[5:0](TX_EQ_POST) = 6'd36 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1); + value = (value & ~0x7F) | adapter->ffe_post | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } else { + /* 5. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL0 Register Bit[13:8](TX_EQ_MAIN) + * = 6'd30, Bit[5:0](TX_EQ_PRE) = 6'd4 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0); + value = (value & ~0x3F3F) | (24 << 8) | 4; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + /* 6. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL1 Register Bit[6](TX_EQ_OVR_RIDE) + * = 1'b1, Bit[5:0](TX_EQ_POST) = 6'd36 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1); + value = (value & ~0x7F) | 16 | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } + if (hw->phy.sfp_type == txgbe_sfp_type_da_cu_core0 || + hw->phy.sfp_type == txgbe_sfp_type_da_cu_core1) { + /* 7. Set VR_XS_PMA_Gen5_12G_RX_EQ_CTRL0 Register + * Bit[15:8](VGA1/2_GAIN_0) = 8'h77, Bit[7:5] + * (CTLE_POLE_0) = 3'h2, Bit[4:0](CTLE_BOOST_0) = 4'hF + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0, 0x774F); + + } else { + /* 7. Set VR_XS_PMA_Gen5_12G_RX_EQ_CTRL0 Register Bit[15:8] + * (VGA1/2_GAIN_0) = 8'h00, Bit[7:5](CTLE_POLE_0) = 3'h2, + * Bit[4:0](CTLE_BOOST_0) = 4'hA + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0); + value = (value & ~0xFFFF) | (2 << 5) | 0x05; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0, value); + } + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_ATT_LVL0); + value = (value & ~0x7) | 0x0; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_ATT_LVL0, value); + + if (hw->phy.sfp_type == txgbe_sfp_type_da_cu_core0 || + hw->phy.sfp_type == txgbe_sfp_type_da_cu_core1) { + /* 8. Set VR_XS_PMA_Gen5_12G_DFE_TAP_CTRL0 Register Bit[7:0](DFE_TAP1_0) + * = 8'd20 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_DFE_TAP_CTL0, 0x0014); + value = txgbe_rd32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE); + value = (value & ~0x11) | 0x11; + txgbe_wr32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE, value); + } else { + /* 8. Set VR_XS_PMA_Gen5_12G_DFE_TAP_CTRL0 Register Bit[7:0](DFE_TAP1_0) + * = 8'd20 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_DFE_TAP_CTL0, 0xBE); + /* 9. Set VR_MII_Gen5_12G_AFE_DFE_EN_CTRL Register Bit[4](DFE_EN_0) = + * 1'b0, Bit[0](AFE_EN_0) = 1'b0 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE); + value = (value & ~0x11) | 0x0; + txgbe_wr32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE, value); + } + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_CTL); + value = value & ~0x1; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL, value); + } else { + if (hw->revision_id == TXGBE_SP_MPW) { + /* Disable PHY MPLLA */ + txgbe_wr32_ephy(hw, 0x4, 0x2401); + /* Reset rx lane0 clock */ + txgbe_wr32_ephy(hw, 0x1005, 0x4001); + } + /* @. Set SR PCS Control2 Register Bits[1:0] = 2'b00 PCS_TYPE_SEL: KR */ + txgbe_wr32_epcs(hw, TXGBE_SR_PCS_CTL2, 0x1); + /* Set SR PMA MMD Control1 Register Bit[13] = 1'b0 SS13: 1G speed */ + txgbe_wr32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1, 0x0000); + /* Set SR MII MMD Control Register to corresponding speed: */ + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_CTL, 0x0140); + + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_GENCTRL1); + value = (value & ~0x710) | 0x500; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GENCTRL1, value); + /* 4. Set VR_XS_PMA_Gen5_12G_MISC_CTRL0 Register Bit[12:8](RX_VREF_CTRL) + * = 5'hF + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MISC_CTL0, 0xCF00); + /* 5. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL0 Register Bit[13:8](TX_EQ_MAIN) + * = 6'd30, Bit[5:0](TX_EQ_PRE) = 6'd4 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0); + value = (value & ~0x3F3F) | (24 << 8) | 4; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + /* 6. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL1 Register Bit[6](TX_EQ_OVR_RIDE) + * = 1'b1, Bit[5:0](TX_EQ_POST) = 6'd36 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1); + value = (value & ~0x7F) | 16 | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + if (hw->phy.sfp_type == txgbe_sfp_type_da_cu_core0 || + hw->phy.sfp_type == txgbe_sfp_type_da_cu_core1) { + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0, 0x774F); + } else { + /* 7. Set VR_XS_PMA_Gen5_12G_RX_EQ_CTRL0 Register Bit[15:8] + * (VGA1/2_GAIN_0) = 8'h00, Bit[7:5](CTLE_POLE_0) = 3'h2, + * Bit[4:0](CTLE_BOOST_0) = 4'hA + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0); + value = (value & ~0xFFFF) | 0x7706; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL0, value); + } + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_EQ_ATT_LVL0); + value = (value & ~0x7) | 0x0; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_ATT_LVL0, value); + /* 8. Set VR_XS_PMA_Gen5_12G_DFE_TAP_CTRL0 Register Bit[7:0](DFE_TAP1_0) + * = 8'd00 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_DFE_TAP_CTL0, 0x0); + /* Set VR_XS_PMA_Gen5_12G_RX_GENCTRL3 Register Bit[2:0] LOS_TRSHLD_0 = 4 */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_RX_GEN_CTL3); + value = (value & ~0x7) | 0x4; + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL3, value); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY + * MPLLA Control 0 Register Bit[7:0] = 8'd32 MPLLA_MULTIPLIER + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL0, 0x0020); + /* Set VR XS, PMA or MII Synopsys Enterprise Gen5 12G PHY MPLLA Control + * 3 Register Bit[10:0] = 11'd70 MPLLA_BANDWIDTH + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL3, 0x0046); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO + * Calibration Load 0 Register Bit[12:0] = 13'd1344 VCO_LD_VAL_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_LD0, 0x0540); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY VCO + * Calibration Reference 0 Register Bit[5:0] = 6'd42 VCO_REF_LD_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_VCO_CAL_REF0, 0x002A); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY AFE-DFE + * Enable Register Bit[4], Bit[0] = 1'b0 AFE_EN_0, DFE_EN_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_AFE_DFE_ENABLE, 0x0); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx + * Equalization Control 4 Register Bit[0] = 1'b0 CONT_ADAPT_0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_EQ_CTL, 0x0010); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Tx Rate + * Control Register Bit[2:0] = 3'b011 TX0_RATE + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_RATE_CTL, 0x0003); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx Rate + * Control Register Bit[2:0] = 3'b011 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_RATE_CTL, 0x0003); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Tx General + * Control 2 Register Bit[9:8] = 2'b01 TX0_WIDTH: 10bits + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_GEN_CTL2, 0x0100); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY Rx General + * Control 2 Register Bit[9:8] = 2'b01 RX0_WIDTH: 10bits + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_RX_GEN_CTL2, 0x0100); + /* Set VR XS, PMA, or MII Synopsys Enterprise Gen5 12G PHY MPLLA + * Control 2 Register Bit[10:8] = 3'b010 MPLLA_DIV16P5_CLK_EN=0, + * MPLLA_DIV10_CLK_EN=1, MPLLA_DIV8_CLK_EN=0 + */ + txgbe_wr32_epcs(hw, TXGBE_PHY_MPLLA_CTL2, 0x0200); + /* VR MII MMD AN Control Register Bit[8] = 1'b1 MII_CTRL */ + txgbe_wr32_epcs(hw, TXGBE_SR_MII_MMD_AN_CTL, 0x0100); + } + /* 10. Initialize the mode by setting VR XS or PCS MMD Digital Control1 + * Register Bit[15](VR_RST) + */ + txgbe_wr32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1, 0xA000); + /* wait phy initialization done */ + for (i = 0; i < TXGBE_PHY_INIT_DONE_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST) == 0) + break; + msleep(100); + } + if (i == TXGBE_PHY_INIT_DONE_POLLING_TIME) { + status = TXGBE_ERR_PHY_INIT_NOT_DONE; + goto out; + } + +out: + return status; +} + + +/** + * txgbe_setup_mac_link - Set MAC link speed + * @hw: pointer to hardware structure + * @speed: new link speed + * @autoneg_wait_to_complete: true when waiting for completion is needed + * + * Set the link speed in the AUTOC register and restarts link. + **/ +s32 txgbe_setup_mac_link(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + bool autoneg = false; + s32 status = 0; + u32 link_capabilities = TXGBE_LINK_SPEED_UNKNOWN; + struct txgbe_adapter *adapter = hw->back; + u32 link_speed = TXGBE_LINK_SPEED_UNKNOWN; + bool link_up = false; + + UNREFERENCED_PARAMETER(autoneg_wait_to_complete); + DEBUGFUNC("\n"); + + /* Check to see if speed passed in is supported. */ + status = TCALL(hw, mac.ops.get_link_capabilities, + &link_capabilities, &autoneg); + if (status) + goto out; + + speed &= link_capabilities; + + if (speed == TXGBE_LINK_SPEED_UNKNOWN) { + status = TXGBE_ERR_LINK_SETUP; + goto out; + } + + if (!(((hw->subsystem_device_id & 0xF0) == TXGBE_ID_KR_KX_KX4) || + ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_MAC_XAUI) || + ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_MAC_SGMII))) { + status = TCALL(hw, mac.ops.check_link, + &link_speed, &link_up, false); + if (status != 0) + goto out; + if ((link_speed == speed) && link_up) + goto out; + } + + if ((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) + goto out; + + if ((hw->subsystem_id & 0xF0) == TXGBE_ID_KR_KX_KX4) { + if (!autoneg) { + switch (hw->phy.link_mode) { + case TXGBE_PHYSICAL_LAYER_10GBASE_KR: + txgbe_set_link_to_kr(hw, autoneg); + break; + case TXGBE_PHYSICAL_LAYER_10GBASE_KX4: + txgbe_set_link_to_kx4(hw, autoneg); + break; + case TXGBE_PHYSICAL_LAYER_1000BASE_KX: + txgbe_set_link_to_kx(hw, speed, autoneg); + break; + default: + status = TXGBE_ERR_PHY; + goto out; + } + } else { + txgbe_set_link_to_kr(hw, autoneg); + } + } else if ((hw->subsystem_id & 0xF0) == TXGBE_ID_XAUI || + ((hw->subsystem_id & 0xF0) == TXGBE_ID_MAC_XAUI) || + (hw->subsystem_id & 0xF0) == TXGBE_ID_SGMII || + ((hw->subsystem_id & 0xF0) == TXGBE_ID_MAC_SGMII) || + (txgbe_get_media_type(hw) == txgbe_media_type_copper && + (hw->subsystem_id & 0xF0) == TXGBE_ID_SFI_XAUI)) { + if (speed == TXGBE_LINK_SPEED_10GB_FULL) { + txgbe_set_link_to_kx4(hw, autoneg); + } else { + txgbe_set_link_to_kx(hw, speed, 0); + if (adapter->an37 || + (hw->subsystem_id & 0xF0) == TXGBE_ID_SGMII || + (hw->subsystem_id & 0xF0) == TXGBE_ID_XAUI) + txgbe_set_sgmii_an37_ability(hw); + } + } else if (txgbe_get_media_type(hw) == txgbe_media_type_fiber) { + txgbe_set_link_to_sfi(hw, speed); + } + +out: + return status; +} + +/** + * txgbe_setup_copper_link - Set the PHY autoneg advertised field + * @hw: pointer to hardware structure + * @speed: new link speed + * @autoneg_wait_to_complete: true if waiting is needed to complete + * + * Restarts link on PHY and MAC based on settings passed in. + **/ +STATIC s32 txgbe_setup_copper_link(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + s32 status; + u32 link_speed; + + DEBUGFUNC("\n"); + + /* Setup the PHY according to input speed */ + link_speed = TCALL(hw, phy.ops.setup_link_speed, speed, + autoneg_wait_to_complete); + + if (link_speed != TXGBE_LINK_SPEED_UNKNOWN) + /* Set up MAC */ + status = txgbe_setup_mac_link(hw, link_speed, autoneg_wait_to_complete); + else { + status = 0; + } + return status; +} + +int txgbe_reset_misc(struct txgbe_hw *hw) +{ + int i; + u32 value; + + txgbe_init_i2c(hw); + + value = txgbe_rd32_epcs(hw, TXGBE_SR_PCS_CTL2); + if ((value & 0x3) != TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X) { + hw->link_status = TXGBE_LINK_STATUS_NONE; + } + + /* receive packets that size > 2048 */ + wr32m(hw, TXGBE_MAC_RX_CFG, + TXGBE_MAC_RX_CFG_JE, TXGBE_MAC_RX_CFG_JE); + + /* clear counters on read */ + wr32m(hw, TXGBE_MMC_CONTROL, + TXGBE_MMC_CONTROL_RSTONRD, TXGBE_MMC_CONTROL_RSTONRD); + + wr32m(hw, TXGBE_MAC_RX_FLOW_CTRL, + TXGBE_MAC_RX_FLOW_CTRL_RFE, TXGBE_MAC_RX_FLOW_CTRL_RFE); + + wr32(hw, TXGBE_MAC_PKT_FLT, + TXGBE_MAC_PKT_FLT_PR); + + wr32m(hw, TXGBE_MIS_RST_ST, + TXGBE_MIS_RST_ST_RST_INIT, 0x1E00); + + /* errata 4: initialize mng flex tbl and wakeup flex tbl*/ + wr32(hw, TXGBE_PSR_MNG_FLEX_SEL, 0); + for (i = 0; i < 16; i++) { + wr32(hw, TXGBE_PSR_MNG_FLEX_DW_L(i), 0); + wr32(hw, TXGBE_PSR_MNG_FLEX_DW_H(i), 0); + wr32(hw, TXGBE_PSR_MNG_FLEX_MSK(i), 0); + } + wr32(hw, TXGBE_PSR_LAN_FLEX_SEL, 0); + for (i = 0; i < 16; i++) { + wr32(hw, TXGBE_PSR_LAN_FLEX_DW_L(i), 0); + wr32(hw, TXGBE_PSR_LAN_FLEX_DW_H(i), 0); + wr32(hw, TXGBE_PSR_LAN_FLEX_MSK(i), 0); + } + + /* set pause frame dst mac addr */ + wr32(hw, TXGBE_RDB_PFCMACDAL, 0xC2000001); + wr32(hw, TXGBE_RDB_PFCMACDAH, 0x0180); + + txgbe_init_thermal_sensor_thresh(hw); + + return 0; +} + +/** + * txgbe_reset_hw - Perform hardware reset + * @hw: pointer to hardware structure + * + * Resets the hardware by resetting the transmit and receive units, masks + * and clears all interrupts, perform a PHY reset, and perform a link (MAC) + * reset. + **/ +s32 txgbe_reset_hw(struct txgbe_hw *hw) +{ + s32 status; + u32 reset = 0; + u32 i; + + u32 sr_pcs_ctl, sr_pma_mmd_ctl1, sr_an_mmd_ctl, sr_an_mmd_adv_reg2; + u32 vr_xs_or_pcs_mmd_digi_ctl1, curr_vr_xs_or_pcs_mmd_digi_ctl1; + u32 curr_sr_pcs_ctl, curr_sr_pma_mmd_ctl1; + u32 curr_sr_an_mmd_ctl, curr_sr_an_mmd_adv_reg2; + + u32 reset_status = 0; + u32 rst_delay = 0; + struct txgbe_adapter *adapter = hw->back; + u32 value; + + DEBUGFUNC("\n"); + + /* Call adapter stop to disable tx/rx and clear interrupts */ + status = TCALL(hw, mac.ops.stop_adapter); + if (status != 0) + goto reset_hw_out; + + /* Identify PHY and related function pointers */ + status = TCALL(hw, phy.ops.init); + + if (status == TXGBE_ERR_SFP_NOT_SUPPORTED) + goto reset_hw_out; + + /* Reset PHY */ + if (txgbe_get_media_type(hw) == txgbe_media_type_copper) + TCALL(hw, phy.ops.reset); + + /* remember internel phy regs from before we reset */ + curr_sr_pcs_ctl = txgbe_rd32_epcs(hw, TXGBE_SR_PCS_CTL2); + curr_sr_pma_mmd_ctl1 = txgbe_rd32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1); + curr_sr_an_mmd_ctl = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_CTL); + curr_sr_an_mmd_adv_reg2 = txgbe_rd32_epcs(hw, + TXGBE_SR_AN_MMD_ADV_REG2); + curr_vr_xs_or_pcs_mmd_digi_ctl1 = + txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1); + + /* + * Issue global reset to the MAC. Needs to be SW reset if link is up. + * If link reset is used when link is up, it might reset the PHY when + * mng is using it. If link is down or the flag to force full link + * reset is set, then perform link reset. + */ + if (hw->force_full_reset) { + rst_delay = (rd32(hw, TXGBE_MIS_RST_ST) & + TXGBE_MIS_RST_ST_RST_INIT) >> + TXGBE_MIS_RST_ST_RST_INI_SHIFT; + if (hw->reset_type == TXGBE_SW_RESET) { + for (i = 0; i < rst_delay + 20; i++) { + reset_status = + rd32(hw, TXGBE_MIS_RST_ST); + if (!(reset_status & + TXGBE_MIS_RST_ST_DEV_RST_ST_MASK)) + break; + msleep(100); + } + + if (reset_status & TXGBE_MIS_RST_ST_DEV_RST_ST_MASK) { + status = TXGBE_ERR_RESET_FAILED; + DEBUGOUT("Global reset polling failed to " + "complete.\n"); + goto reset_hw_out; + } + status = txgbe_check_flash_load(hw, + TXGBE_SPI_ILDR_STATUS_SW_RESET); + if (status != 0) + goto reset_hw_out; + /* errata 7 */ + if (txgbe_mng_present(hw) && + hw->revision_id == TXGBE_SP_MPW) { + struct txgbe_adapter *adapter = + (struct txgbe_adapter *)hw->back; + adapter->flags2 &= + ~TXGBE_FLAG2_MNG_REG_ACCESS_DISABLED; + } + } else if (hw->reset_type == TXGBE_GLOBAL_RESET) { +#ifndef _WIN32 + struct txgbe_adapter *adapter = + (struct txgbe_adapter *)hw->back; + msleep(100 * rst_delay + 2000); + pci_restore_state(adapter->pdev); + pci_save_state(adapter->pdev); + pci_wake_from_d3(adapter->pdev, false); +#endif /*_WIN32*/ + } + } else { + if (txgbe_mng_present(hw)) { + if (!(((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) || + ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP))) { + txgbe_reset_hostif(hw); + } + } else { + + if (hw->bus.lan_id == 0) { + reset = TXGBE_MIS_RST_LAN0_RST; + } else { + reset = TXGBE_MIS_RST_LAN1_RST; + } + + wr32(hw, TXGBE_MIS_RST, + reset | rd32(hw, TXGBE_MIS_RST)); + TXGBE_WRITE_FLUSH(hw); + } + usec_delay(10); + + if (hw->bus.lan_id == 0) { + status = txgbe_check_flash_load(hw, + TXGBE_SPI_ILDR_STATUS_LAN0_SW_RST); + } else { + status = txgbe_check_flash_load(hw, + TXGBE_SPI_ILDR_STATUS_LAN1_SW_RST); + } + if (status != 0) + goto reset_hw_out; + } + + status = txgbe_reset_misc(hw); + if (status != 0) + goto reset_hw_out; + + /* + * Store the original AUTOC/AUTOC2 values if they have not been + * stored off yet. Otherwise restore the stored original + * values since the reset operation sets back to defaults. + */ + sr_pcs_ctl = txgbe_rd32_epcs(hw, TXGBE_SR_PCS_CTL2); + sr_pma_mmd_ctl1 = txgbe_rd32_epcs(hw, TXGBE_SR_PMA_MMD_CTL1); + sr_an_mmd_ctl = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_CTL); + sr_an_mmd_adv_reg2 = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_ADV_REG2); + vr_xs_or_pcs_mmd_digi_ctl1 = + txgbe_rd32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1); + + if (hw->mac.orig_link_settings_stored == false) { + hw->mac.orig_sr_pcs_ctl2 = sr_pcs_ctl; + hw->mac.orig_sr_pma_mmd_ctl1 = sr_pma_mmd_ctl1; + hw->mac.orig_sr_an_mmd_ctl = sr_an_mmd_ctl; + hw->mac.orig_sr_an_mmd_adv_reg2 = sr_an_mmd_adv_reg2; + hw->mac.orig_vr_xs_or_pcs_mmd_digi_ctl1 = + vr_xs_or_pcs_mmd_digi_ctl1; + hw->mac.orig_link_settings_stored = true; + } else { + + /* If MNG FW is running on a multi-speed device that + * doesn't autoneg with out driver support we need to + * leave LMS in the state it was before we MAC reset. + * Likewise if we support WoL we don't want change the + * LMS state. + */ + + hw->mac.orig_sr_pcs_ctl2 = curr_sr_pcs_ctl; + hw->mac.orig_sr_pma_mmd_ctl1 = curr_sr_pma_mmd_ctl1; + hw->mac.orig_sr_an_mmd_ctl = curr_sr_an_mmd_ctl; + hw->mac.orig_sr_an_mmd_adv_reg2 = + curr_sr_an_mmd_adv_reg2; + hw->mac.orig_vr_xs_or_pcs_mmd_digi_ctl1 = + curr_vr_xs_or_pcs_mmd_digi_ctl1; + + } + + /*A temporary solution for set to sfi*/ + if (SFI_SET == 1 || adapter->ffe_set == TXGBE_BP_M_SFI) { + e_dev_info("Set SFI TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + /* 5. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL0 Register Bit[13:8](TX_EQ_MAIN) + * = 6'd30, Bit[5:0](TX_EQ_PRE) = 6'd4 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0); + value = (value & ~0x3F3F) | (adapter->ffe_main << 8) | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + /* 6. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL1 Register Bit[6](TX_EQ_OVR_RIDE) + * = 1'b1, Bit[5:0](TX_EQ_POST) = 6'd36 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1); + value = (value & ~0x7F) | adapter->ffe_post | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + } + + if (KR_SET == 1 || adapter->ffe_set == TXGBE_BP_M_KR) { + e_dev_info("Set KR TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + value = (0x1804 & ~0x3F3F); + value |= adapter->ffe_main << 8 | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + + value = (0x50 & ~0x7F) | (1 << 6)| adapter->ffe_post; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + txgbe_wr32_epcs(hw, 0x18035, 0x00FF); + txgbe_wr32_epcs(hw, 0x18055, 0x00FF); + } + + if (KX_SET == 1 || adapter->ffe_set == TXGBE_BP_M_KX) { + e_dev_info("Set KX TX_EQ MAIN:%d PRE:%d POST:%d\n", + adapter->ffe_main, adapter->ffe_pre, adapter->ffe_post); + /* 5. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL0 Register Bit[13:8](TX_EQ_MAIN) + * = 6'd30, Bit[5:0](TX_EQ_PRE) = 6'd4 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0); + value = (value & ~0x3F3F) | (adapter->ffe_main << 8) | adapter->ffe_pre; + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL0, value); + /* 6. Set VR_XS_PMA_Gen5_12G_TX_EQ_CTRL1 Register Bit[6](TX_EQ_OVR_RIDE) + * = 1'b1, Bit[5:0](TX_EQ_POST) = 6'd36 + */ + value = txgbe_rd32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1); + value = (value & ~0x7F) | adapter->ffe_post | (1 << 6); + txgbe_wr32_epcs(hw, TXGBE_PHY_TX_EQ_CTL1, value); + + txgbe_wr32_epcs(hw, 0x18035, 0x00FF); + txgbe_wr32_epcs(hw, 0x18055, 0x00FF); + } + + /* Store the permanent mac address */ + TCALL(hw, mac.ops.get_mac_addr, hw->mac.perm_addr); + + /* + * Store MAC address from RAR0, clear receive address registers, and + * clear the multicast table. Also reset num_rar_entries to 128, + * since we modify this value when programming the SAN MAC address. + */ + hw->mac.num_rar_entries = 128; + TCALL(hw, mac.ops.init_rx_addrs); + + /* Store the permanent SAN mac address */ + TCALL(hw, mac.ops.get_san_mac_addr, hw->mac.san_addr); + + /* Add the SAN MAC address to the RAR only if it's a valid address */ + if (txgbe_validate_mac_addr(hw->mac.san_addr) == 0) { + TCALL(hw, mac.ops.set_rar, hw->mac.num_rar_entries - 1, + hw->mac.san_addr, 0, TXGBE_PSR_MAC_SWC_AD_H_AV); + + /* Save the SAN MAC RAR index */ + hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1; + + /* Reserve the last RAR for the SAN MAC address */ + hw->mac.num_rar_entries--; + } + + /* Store the alternative WWNN/WWPN prefix */ + TCALL(hw, mac.ops.get_wwn_prefix, &hw->mac.wwnn_prefix, + &hw->mac.wwpn_prefix); + + pci_set_master(((struct txgbe_adapter *)hw->back)->pdev); + +reset_hw_out: + return status; +} + +/** + * txgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete + * @hw: pointer to hardware structure + * @fdircmd: current value of FDIRCMD register + */ +STATIC s32 txgbe_fdir_check_cmd_complete(struct txgbe_hw *hw, u32 *fdircmd) +{ + int i; + + for (i = 0; i < TXGBE_RDB_FDIR_CMD_CMD_POLL; i++) { + *fdircmd = rd32(hw, TXGBE_RDB_FDIR_CMD); + if (!(*fdircmd & TXGBE_RDB_FDIR_CMD_CMD_MASK)) + return 0; + usec_delay(10); + } + + return TXGBE_ERR_FDIR_CMD_INCOMPLETE; +} + +/** + * txgbe_reinit_fdir_tables - Reinitialize Flow Director tables. + * @hw: pointer to hardware structure + **/ +s32 txgbe_reinit_fdir_tables(struct txgbe_hw *hw) +{ + s32 err; + int i; + u32 fdirctrl = rd32(hw, TXGBE_RDB_FDIR_CTL); + u32 fdircmd; + fdirctrl &= ~TXGBE_RDB_FDIR_CTL_INIT_DONE; + + DEBUGFUNC("\n"); + + /* + * Before starting reinitialization process, + * FDIRCMD.CMD must be zero. + */ + err = txgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + DEBUGOUT("Flow Director previous command did not complete, " + "aborting table re-initialization.\n"); + return err; + } + + wr32(hw, TXGBE_RDB_FDIR_FREE, 0); + TXGBE_WRITE_FLUSH(hw); + /* + * sapphire adapters flow director init flow cannot be restarted, + * Workaround sapphire silicon errata by performing the following steps + * before re-writing the FDIRCTRL control register with the same value. + * - write 1 to bit 8 of FDIRCMD register & + * - write 0 to bit 8 of FDIRCMD register + */ + wr32m(hw, TXGBE_RDB_FDIR_CMD, + TXGBE_RDB_FDIR_CMD_CLEARHT, TXGBE_RDB_FDIR_CMD_CLEARHT); + TXGBE_WRITE_FLUSH(hw); + wr32m(hw, TXGBE_RDB_FDIR_CMD, + TXGBE_RDB_FDIR_CMD_CLEARHT, 0); + TXGBE_WRITE_FLUSH(hw); + /* + * Clear FDIR Hash register to clear any leftover hashes + * waiting to be programmed. + */ + wr32(hw, TXGBE_RDB_FDIR_HASH, 0x00); + TXGBE_WRITE_FLUSH(hw); + + wr32(hw, TXGBE_RDB_FDIR_CTL, fdirctrl); + TXGBE_WRITE_FLUSH(hw); + + /* Poll init-done after we write FDIRCTRL register */ + for (i = 0; i < TXGBE_FDIR_INIT_DONE_POLL; i++) { + if (rd32(hw, TXGBE_RDB_FDIR_CTL) & + TXGBE_RDB_FDIR_CTL_INIT_DONE) + break; + msec_delay(1); + } + if (i >= TXGBE_FDIR_INIT_DONE_POLL) { + DEBUGOUT("Flow Director Signature poll time exceeded!\n"); + return TXGBE_ERR_FDIR_REINIT_FAILED; + } + + /* Clear FDIR statistics registers (read to clear) */ + rd32(hw, TXGBE_RDB_FDIR_USE_ST); + rd32(hw, TXGBE_RDB_FDIR_FAIL_ST); + rd32(hw, TXGBE_RDB_FDIR_MATCH); + rd32(hw, TXGBE_RDB_FDIR_MISS); + rd32(hw, TXGBE_RDB_FDIR_LEN); + + return 0; +} + +/** + * txgbe_fdir_enable - Initialize Flow Director control registers + * @hw: pointer to hardware structure + * @fdirctrl: value to write to flow director control register + **/ +STATIC void txgbe_fdir_enable(struct txgbe_hw *hw, u32 fdirctrl) +{ + int i; + + DEBUGFUNC("\n"); + + /* Prime the keys for hashing */ + wr32(hw, TXGBE_RDB_FDIR_HKEY, TXGBE_ATR_BUCKET_HASH_KEY); + wr32(hw, TXGBE_RDB_FDIR_SKEY, TXGBE_ATR_SIGNATURE_HASH_KEY); + + /* + * Poll init-done after we write the register. Estimated times: + * 10G: PBALLOC = 11b, timing is 60us + * 1G: PBALLOC = 11b, timing is 600us + * 100M: PBALLOC = 11b, timing is 6ms + * + * Multiple these timings by 4 if under full Rx load + * + * So we'll poll for TXGBE_FDIR_INIT_DONE_POLL times, sleeping for + * 1 msec per poll time. If we're at line rate and drop to 100M, then + * this might not finish in our poll time, but we can live with that + * for now. + */ + wr32(hw, TXGBE_RDB_FDIR_CTL, fdirctrl); + TXGBE_WRITE_FLUSH(hw); + for (i = 0; i < TXGBE_RDB_FDIR_INIT_DONE_POLL; i++) { + if (rd32(hw, TXGBE_RDB_FDIR_CTL) & + TXGBE_RDB_FDIR_CTL_INIT_DONE) + break; + msec_delay(1); + } + + if (i >= TXGBE_RDB_FDIR_INIT_DONE_POLL) + DEBUGOUT("Flow Director poll time exceeded!\n"); +} + +/** + * txgbe_init_fdir_signature -Initialize Flow Director sig filters + * @hw: pointer to hardware structure + * @fdirctrl: value to write to flow director control register, initially + * contains just the value of the Rx packet buffer allocation + **/ +s32 txgbe_init_fdir_signature(struct txgbe_hw *hw, u32 fdirctrl) +{ + struct txgbe_adapter *adapter = (struct txgbe_adapter *)hw->back; + int i = VMDQ_P(0) / 4; + int j = VMDQ_P(0) % 4; + u32 flex = rd32m(hw, TXGBE_RDB_FDIR_FLEX_CFG(i), + ~((TXGBE_RDB_FDIR_FLEX_CFG_BASE_MSK | + TXGBE_RDB_FDIR_FLEX_CFG_MSK | + TXGBE_RDB_FDIR_FLEX_CFG_OFST) << + (TXGBE_RDB_FDIR_FLEX_CFG_VM_SHIFT * j))); + + UNREFERENCED_PARAMETER(adapter); + + flex |= (TXGBE_RDB_FDIR_FLEX_CFG_BASE_MAC | + 0x6 << TXGBE_RDB_FDIR_FLEX_CFG_OFST_SHIFT) << + (TXGBE_RDB_FDIR_FLEX_CFG_VM_SHIFT * j); + wr32(hw, TXGBE_RDB_FDIR_FLEX_CFG(i), flex); + + /* + * Continue setup of fdirctrl register bits: + * Move the flexible bytes to use the ethertype - shift 6 words + * Set the maximum length per hash bucket to 0xA filters + * Send interrupt when 64 filters are left + */ + fdirctrl |= (0xF << TXGBE_RDB_FDIR_CTL_HASH_BITS_SHIFT) | + (0xA << TXGBE_RDB_FDIR_CTL_MAX_LENGTH_SHIFT) | + (4 << TXGBE_RDB_FDIR_CTL_FULL_THRESH_SHIFT); + + /* write hashes and fdirctrl register, poll for completion */ + txgbe_fdir_enable(hw, fdirctrl); + + if (hw->revision_id == TXGBE_SP_MPW) { + /* errata 1: disable RSC of drop ring 0 */ + wr32m(hw, TXGBE_PX_RR_CFG(0), + TXGBE_PX_RR_CFG_RSC, ~TXGBE_PX_RR_CFG_RSC); + } + return 0; +} + +/** + * txgbe_init_fdir_perfect - Initialize Flow Director perfect filters + * @hw: pointer to hardware structure + * @fdirctrl: value to write to flow director control register, initially + * contains just the value of the Rx packet buffer allocation + * @cloud_mode: true - cloud mode, false - other mode + **/ +s32 txgbe_init_fdir_perfect(struct txgbe_hw *hw, u32 fdirctrl, + bool cloud_mode) +{ + UNREFERENCED_PARAMETER(cloud_mode); + DEBUGFUNC("\n"); + + /* + * Continue setup of fdirctrl register bits: + * Turn perfect match filtering on + * Report hash in RSS field of Rx wb descriptor + * Initialize the drop queue + * Move the flexible bytes to use the ethertype - shift 6 words + * Set the maximum length per hash bucket to 0xA filters + * Send interrupt when 64 (0x4 * 16) filters are left + */ + fdirctrl |= TXGBE_RDB_FDIR_CTL_PERFECT_MATCH | + (TXGBE_RDB_FDIR_DROP_QUEUE << + TXGBE_RDB_FDIR_CTL_DROP_Q_SHIFT) | + (0xF << TXGBE_RDB_FDIR_CTL_HASH_BITS_SHIFT) | + (0xA << TXGBE_RDB_FDIR_CTL_MAX_LENGTH_SHIFT) | + (4 << TXGBE_RDB_FDIR_CTL_FULL_THRESH_SHIFT); + + /* write hashes and fdirctrl register, poll for completion */ + txgbe_fdir_enable(hw, fdirctrl); + + if (hw->revision_id == TXGBE_SP_MPW) { + if (((struct txgbe_adapter *)hw->back)->num_rx_queues > + TXGBE_RDB_FDIR_DROP_QUEUE) + /* errata 1: disable RSC of drop ring */ + wr32m(hw, + TXGBE_PX_RR_CFG(TXGBE_RDB_FDIR_DROP_QUEUE), + TXGBE_PX_RR_CFG_RSC, ~TXGBE_PX_RR_CFG_RSC); + } + return 0; +} + +/* + * These defines allow us to quickly generate all of the necessary instructions + * in the function below by simply calling out TXGBE_COMPUTE_SIG_HASH_ITERATION + * for values 0 through 15 + */ +#define TXGBE_ATR_COMMON_HASH_KEY \ + (TXGBE_ATR_BUCKET_HASH_KEY & TXGBE_ATR_SIGNATURE_HASH_KEY) +#define TXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \ +do { \ + u32 n = (_n); \ + if (TXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \ + common_hash ^= lo_hash_dword >> n; \ + else if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \ + bucket_hash ^= lo_hash_dword >> n; \ + else if (TXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \ + sig_hash ^= lo_hash_dword << (16 - n); \ + if (TXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \ + common_hash ^= hi_hash_dword >> n; \ + else if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ + bucket_hash ^= hi_hash_dword >> n; \ + else if (TXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \ + sig_hash ^= hi_hash_dword << (16 - n); \ +} while (0) + +/** + * txgbe_atr_compute_sig_hash - Compute the signature hash + * @stream: input bitstream to compute the hash on + * + * This function is almost identical to the function above but contains + * several optimizations such as unwinding all of the loops, letting the + * compiler work out all of the conditional ifs since the keys are static + * defines, and computing two keys at once since the hashed dword stream + * will be the same for both keys. + **/ +u32 txgbe_atr_compute_sig_hash(union txgbe_atr_hash_dword input, + union txgbe_atr_hash_dword common) +{ + u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan; + u32 sig_hash = 0, bucket_hash = 0, common_hash = 0; + + /* record the flow_vm_vlan bits as they are a key part to the hash */ + flow_vm_vlan = TXGBE_NTOHL(input.dword); + + /* generate common hash dword */ + hi_hash_dword = TXGBE_NTOHL(common.dword); + + /* low dword is word swapped version of common */ + lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16); + + /* apply flow ID/VM pool/VLAN ID bits to hash words */ + hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16); + + /* Process bits 0 and 16 */ + TXGBE_COMPUTE_SIG_HASH_ITERATION(0); + + /* + * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to + * delay this because bit 0 of the stream should not be processed + * so we do not add the VLAN until after bit 0 was processed + */ + lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16); + + /* Process remaining 30 bit of the key */ + TXGBE_COMPUTE_SIG_HASH_ITERATION(1); + TXGBE_COMPUTE_SIG_HASH_ITERATION(2); + TXGBE_COMPUTE_SIG_HASH_ITERATION(3); + TXGBE_COMPUTE_SIG_HASH_ITERATION(4); + TXGBE_COMPUTE_SIG_HASH_ITERATION(5); + TXGBE_COMPUTE_SIG_HASH_ITERATION(6); + TXGBE_COMPUTE_SIG_HASH_ITERATION(7); + TXGBE_COMPUTE_SIG_HASH_ITERATION(8); + TXGBE_COMPUTE_SIG_HASH_ITERATION(9); + TXGBE_COMPUTE_SIG_HASH_ITERATION(10); + TXGBE_COMPUTE_SIG_HASH_ITERATION(11); + TXGBE_COMPUTE_SIG_HASH_ITERATION(12); + TXGBE_COMPUTE_SIG_HASH_ITERATION(13); + TXGBE_COMPUTE_SIG_HASH_ITERATION(14); + TXGBE_COMPUTE_SIG_HASH_ITERATION(15); + + /* combine common_hash result with signature and bucket hashes */ + bucket_hash ^= common_hash; + bucket_hash &= TXGBE_ATR_HASH_MASK; + + sig_hash ^= common_hash << 16; + sig_hash &= TXGBE_ATR_HASH_MASK << 16; + + /* return completed signature hash */ + return sig_hash ^ bucket_hash; +} + +/** + * txgbe_atr_add_signature_filter - Adds a signature hash filter + * @hw: pointer to hardware structure + * @input: unique input dword + * @common: compressed common input dword + * @queue: queue index to direct traffic to + **/ +s32 txgbe_fdir_add_signature_filter(struct txgbe_hw *hw, + union txgbe_atr_hash_dword input, + union txgbe_atr_hash_dword common, + u8 queue) +{ + u32 fdirhashcmd = 0; + u8 flow_type; + u32 fdircmd; + s32 err; + + DEBUGFUNC("\n"); + + /* + * Get the flow_type in order to program FDIRCMD properly + * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6 + * fifth is FDIRCMD.TUNNEL_FILTER + */ + flow_type = input.formatted.flow_type; + switch (flow_type) { + case TXGBE_ATR_FLOW_TYPE_TCPV4: + case TXGBE_ATR_FLOW_TYPE_UDPV4: + case TXGBE_ATR_FLOW_TYPE_SCTPV4: + case TXGBE_ATR_FLOW_TYPE_TCPV6: + case TXGBE_ATR_FLOW_TYPE_UDPV6: + case TXGBE_ATR_FLOW_TYPE_SCTPV6: + break; + default: + DEBUGOUT(" Error on flow type input\n"); + return TXGBE_ERR_CONFIG; + } + + /* configure FDIRCMD register */ + fdircmd = TXGBE_RDB_FDIR_CMD_CMD_ADD_FLOW | + TXGBE_RDB_FDIR_CMD_FILTER_UPDATE | + TXGBE_RDB_FDIR_CMD_LAST | TXGBE_RDB_FDIR_CMD_QUEUE_EN; + fdircmd |= (u32)flow_type << TXGBE_RDB_FDIR_CMD_FLOW_TYPE_SHIFT; + fdircmd |= (u32)queue << TXGBE_RDB_FDIR_CMD_RX_QUEUE_SHIFT; + + fdirhashcmd |= txgbe_atr_compute_sig_hash(input, common); + fdirhashcmd |= 0x1 << TXGBE_RDB_FDIR_HASH_BUCKET_VALID_SHIFT; + wr32(hw, TXGBE_RDB_FDIR_HASH, fdirhashcmd); + + wr32(hw, TXGBE_RDB_FDIR_CMD, fdircmd); + + err = txgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + DEBUGOUT("Flow Director command did not complete!\n"); + return err; + } + + DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd); + + return 0; +} + +#define TXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \ +do { \ + u32 n = (_n); \ + if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \ + bucket_hash ^= lo_hash_dword >> n; \ + if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ + bucket_hash ^= hi_hash_dword >> n; \ +} while (0) + +/** + * txgbe_atr_compute_perfect_hash - Compute the perfect filter hash + * @atr_input: input bitstream to compute the hash on + * @input_mask: mask for the input bitstream + * + * This function serves two main purposes. First it applies the input_mask + * to the atr_input resulting in a cleaned up atr_input data stream. + * Secondly it computes the hash and stores it in the bkt_hash field at + * the end of the input byte stream. This way it will be available for + * future use without needing to recompute the hash. + **/ +void txgbe_atr_compute_perfect_hash(union txgbe_atr_input *input, + union txgbe_atr_input *input_mask) +{ + u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan; + u32 bucket_hash = 0; + u32 hi_dword = 0; + u32 i = 0; + + /* Apply masks to input data */ + for (i = 0; i < 11; i++) + input->dword_stream[i] &= input_mask->dword_stream[i]; + + /* record the flow_vm_vlan bits as they are a key part to the hash */ + flow_vm_vlan = TXGBE_NTOHL(input->dword_stream[0]); + + /* generate common hash dword */ + for (i = 1; i <= 10; i++) + hi_dword ^= input->dword_stream[i]; + hi_hash_dword = TXGBE_NTOHL(hi_dword); + + /* low dword is word swapped version of common */ + lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16); + + /* apply flow ID/VM pool/VLAN ID bits to hash words */ + hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16); + + /* Process bits 0 and 16 */ + TXGBE_COMPUTE_BKT_HASH_ITERATION(0); + + /* + * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to + * delay this because bit 0 of the stream should not be processed + * so we do not add the VLAN until after bit 0 was processed + */ + lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16); + + /* Process remaining 30 bit of the key */ + for (i = 1; i <= 15; i++) + TXGBE_COMPUTE_BKT_HASH_ITERATION(i); + + /* + * Limit hash to 13 bits since max bucket count is 8K. + * Store result at the end of the input stream. + */ + input->formatted.bkt_hash = bucket_hash & 0x1FFF; +} + +/** + * txgbe_get_fdirtcpm - generate a TCP port from atr_input_masks + * @input_mask: mask to be bit swapped + * + * The source and destination port masks for flow director are bit swapped + * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to + * generate a correctly swapped value we need to bit swap the mask and that + * is what is accomplished by this function. + **/ +STATIC u32 txgbe_get_fdirtcpm(union txgbe_atr_input *input_mask) +{ + u32 mask = TXGBE_NTOHS(input_mask->formatted.dst_port); + mask <<= TXGBE_RDB_FDIR_TCP_MSK_DPORTM_SHIFT; + mask |= TXGBE_NTOHS(input_mask->formatted.src_port); + mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1); + mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2); + mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4); + return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8); +} + +/* + * These two macros are meant to address the fact that we have registers + * that are either all or in part big-endian. As a result on big-endian + * systems we will end up byte swapping the value to little-endian before + * it is byte swapped again and written to the hardware in the original + * big-endian format. + */ +#define TXGBE_STORE_AS_BE32(_value) \ + (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \ + (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24)) + +#define TXGBE_WRITE_REG_BE32(a, reg, value) \ + wr32((a), (reg), TXGBE_STORE_AS_BE32(TXGBE_NTOHL(value))) + +#define TXGBE_STORE_AS_BE16(_value) \ + TXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8)) + +s32 txgbe_fdir_set_input_mask(struct txgbe_hw *hw, + union txgbe_atr_input *input_mask, + bool cloud_mode) +{ + /* mask IPv6 since it is currently not supported */ + u32 fdirm = 0; + u32 fdirtcpm; + u32 flex = 0; + int i, j; + struct txgbe_adapter *adapter = (struct txgbe_adapter *)hw->back; + + UNREFERENCED_PARAMETER(cloud_mode); + UNREFERENCED_PARAMETER(adapter); + + DEBUGFUNC("\n"); + + /* + * Program the relevant mask registers. If src/dst_port or src/dst_addr + * are zero, then assume a full mask for that field. Also assume that + * a VLAN of 0 is unspecified, so mask that out as well. L4type + * cannot be masked out in this implementation. + * + * This also assumes IPv4 only. IPv6 masking isn't supported at this + * point in time. + */ + + /* verify bucket hash is cleared on hash generation */ + if (input_mask->formatted.bkt_hash) + DEBUGOUT(" bucket hash should always be 0 in mask\n"); + + /* Program FDIRM and verify partial masks */ + switch (input_mask->formatted.vm_pool & 0x7F) { + case 0x0: + fdirm |= TXGBE_RDB_FDIR_OTHER_MSK_POOL; + case 0x7F: + break; + default: + DEBUGOUT(" Error on vm pool mask\n"); + return TXGBE_ERR_CONFIG; + } + + switch (input_mask->formatted.flow_type & TXGBE_ATR_L4TYPE_MASK) { + case 0x0: + fdirm |= TXGBE_RDB_FDIR_OTHER_MSK_L4P; + if (input_mask->formatted.dst_port || + input_mask->formatted.src_port) { + DEBUGOUT(" Error on src/dst port mask\n"); + return TXGBE_ERR_CONFIG; + } + case TXGBE_ATR_L4TYPE_MASK: + break; + default: + DEBUGOUT(" Error on flow type mask\n"); + return TXGBE_ERR_CONFIG; + } + + /* Now mask VM pool and destination IPv6 - bits 5 and 2 */ + wr32(hw, TXGBE_RDB_FDIR_OTHER_MSK, fdirm); + + i = VMDQ_P(0) / 4; + j = VMDQ_P(0) % 4; + flex = rd32m(hw, TXGBE_RDB_FDIR_FLEX_CFG(i), + ~((TXGBE_RDB_FDIR_FLEX_CFG_BASE_MSK | + TXGBE_RDB_FDIR_FLEX_CFG_MSK | + TXGBE_RDB_FDIR_FLEX_CFG_OFST) << + (TXGBE_RDB_FDIR_FLEX_CFG_VM_SHIFT * j))); + flex |= (TXGBE_RDB_FDIR_FLEX_CFG_BASE_MAC | + 0x6 << TXGBE_RDB_FDIR_FLEX_CFG_OFST_SHIFT) << + (TXGBE_RDB_FDIR_FLEX_CFG_VM_SHIFT * j); + + switch (input_mask->formatted.flex_bytes & 0xFFFF) { + case 0x0000: + /* Mask Flex Bytes, fall through */ + flex |= TXGBE_RDB_FDIR_FLEX_CFG_MSK << + (TXGBE_RDB_FDIR_FLEX_CFG_VM_SHIFT * j); + case 0xFFFF: + break; + default: + DEBUGOUT(" Error on flexible byte mask\n"); + return TXGBE_ERR_CONFIG; + } + wr32(hw, TXGBE_RDB_FDIR_FLEX_CFG(i), flex); + + /* store the TCP/UDP port masks, bit reversed from port + * layout */ + fdirtcpm = txgbe_get_fdirtcpm(input_mask); + + /* write both the same so that UDP and TCP use the same mask */ + wr32(hw, TXGBE_RDB_FDIR_TCP_MSK, ~fdirtcpm); + wr32(hw, TXGBE_RDB_FDIR_UDP_MSK, ~fdirtcpm); + wr32(hw, TXGBE_RDB_FDIR_SCTP_MSK, ~fdirtcpm); + + /* store source and destination IP masks (little-enian) */ + wr32(hw, TXGBE_RDB_FDIR_SA4_MSK, + TXGBE_NTOHL(~input_mask->formatted.src_ip[0])); + wr32(hw, TXGBE_RDB_FDIR_DA4_MSK, + TXGBE_NTOHL(~input_mask->formatted.dst_ip[0])); + return 0; +} + +s32 txgbe_fdir_write_perfect_filter(struct txgbe_hw *hw, + union txgbe_atr_input *input, + u16 soft_id, u8 queue, + bool cloud_mode) +{ + u32 fdirport, fdirvlan, fdirhash, fdircmd; + s32 err; + + DEBUGFUNC("\n"); + if (!cloud_mode) { + /* currently IPv6 is not supported, must be programmed with 0 */ + wr32(hw, TXGBE_RDB_FDIR_IP6(2), + TXGBE_NTOHL(input->formatted.src_ip[0])); + wr32(hw, TXGBE_RDB_FDIR_IP6(1), + TXGBE_NTOHL(input->formatted.src_ip[1])); + wr32(hw, TXGBE_RDB_FDIR_IP6(0), + TXGBE_NTOHL(input->formatted.src_ip[2])); + + /* record the source address (little-endian) */ + wr32(hw, TXGBE_RDB_FDIR_SA, + TXGBE_NTOHL(input->formatted.src_ip[0])); + + /* record the first 32 bits of the destination address + * (little-endian) */ + wr32(hw, TXGBE_RDB_FDIR_DA, + TXGBE_NTOHL(input->formatted.dst_ip[0])); + + /* record source and destination port (little-endian)*/ + fdirport = TXGBE_NTOHS(input->formatted.dst_port); + fdirport <<= TXGBE_RDB_FDIR_PORT_DESTINATION_SHIFT; + fdirport |= TXGBE_NTOHS(input->formatted.src_port); + wr32(hw, TXGBE_RDB_FDIR_PORT, fdirport); + } + + /* record packet type and flex_bytes(little-endian) */ + fdirvlan = TXGBE_NTOHS(input->formatted.flex_bytes); + fdirvlan <<= TXGBE_RDB_FDIR_FLEX_FLEX_SHIFT; + + fdirvlan |= TXGBE_NTOHS(input->formatted.vlan_id); + wr32(hw, TXGBE_RDB_FDIR_FLEX, fdirvlan); + + + /* configure FDIRHASH register */ + fdirhash = input->formatted.bkt_hash | + 0x1 << TXGBE_RDB_FDIR_HASH_BUCKET_VALID_SHIFT; + fdirhash |= soft_id << TXGBE_RDB_FDIR_HASH_SIG_SW_INDEX_SHIFT; + wr32(hw, TXGBE_RDB_FDIR_HASH, fdirhash); + + /* + * flush all previous writes to make certain registers are + * programmed prior to issuing the command + */ + TXGBE_WRITE_FLUSH(hw); + + /* configure FDIRCMD register */ + fdircmd = TXGBE_RDB_FDIR_CMD_CMD_ADD_FLOW | + TXGBE_RDB_FDIR_CMD_FILTER_UPDATE | + TXGBE_RDB_FDIR_CMD_LAST | TXGBE_RDB_FDIR_CMD_QUEUE_EN; + if (queue == TXGBE_RDB_FDIR_DROP_QUEUE) + fdircmd |= TXGBE_RDB_FDIR_CMD_DROP; + fdircmd |= input->formatted.flow_type << + TXGBE_RDB_FDIR_CMD_FLOW_TYPE_SHIFT; + fdircmd |= (u32)queue << TXGBE_RDB_FDIR_CMD_RX_QUEUE_SHIFT; + fdircmd |= (u32)input->formatted.vm_pool << + TXGBE_RDB_FDIR_CMD_VT_POOL_SHIFT; + + wr32(hw, TXGBE_RDB_FDIR_CMD, fdircmd); + err = txgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + DEBUGOUT("Flow Director command did not complete!\n"); + return err; + } + + return 0; +} + +s32 txgbe_fdir_erase_perfect_filter(struct txgbe_hw *hw, + union txgbe_atr_input *input, + u16 soft_id) +{ + u32 fdirhash; + u32 fdircmd; + s32 err; + + /* configure FDIRHASH register */ + fdirhash = input->formatted.bkt_hash; + fdirhash |= soft_id << TXGBE_RDB_FDIR_HASH_SIG_SW_INDEX_SHIFT; + wr32(hw, TXGBE_RDB_FDIR_HASH, fdirhash); + + /* flush hash to HW */ + TXGBE_WRITE_FLUSH(hw); + + /* Query if filter is present */ + wr32(hw, TXGBE_RDB_FDIR_CMD, + TXGBE_RDB_FDIR_CMD_CMD_QUERY_REM_FILT); + + err = txgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + DEBUGOUT("Flow Director command did not complete!\n"); + return err; + } + + /* if filter exists in hardware then remove it */ + if (fdircmd & TXGBE_RDB_FDIR_CMD_FILTER_VALID) { + wr32(hw, TXGBE_RDB_FDIR_HASH, fdirhash); + TXGBE_WRITE_FLUSH(hw); + wr32(hw, TXGBE_RDB_FDIR_CMD, + TXGBE_RDB_FDIR_CMD_CMD_REMOVE_FLOW); + } + + return 0; +} + + +/** + * txgbe_start_hw - Prepare hardware for Tx/Rx + * @hw: pointer to hardware structure + * + * Starts the hardware using the generic start_hw function + * and the generation start_hw function. + * Then performs revision-specific operations, if any. + **/ +s32 txgbe_start_hw(struct txgbe_hw *hw) +{ + int ret_val = 0; + u32 i; + + DEBUGFUNC("\n"); + + /* Set the media type */ + hw->phy.media_type = TCALL(hw, mac.ops.get_media_type); + + /* PHY ops initialization must be done in reset_hw() */ + + /* Clear the VLAN filter table */ + TCALL(hw, mac.ops.clear_vfta); + + /* Clear statistics registers */ + TCALL(hw, mac.ops.clear_hw_cntrs); + + TXGBE_WRITE_FLUSH(hw); + + /* Setup flow control */ + ret_val = TCALL(hw, mac.ops.setup_fc); + + /* Clear the rate limiters */ + for (i = 0; i < hw->mac.max_tx_queues; i++) { + wr32(hw, TXGBE_TDM_RP_IDX, i); + wr32(hw, TXGBE_TDM_RP_RATE, 0); + } + TXGBE_WRITE_FLUSH(hw); + + /* Clear adapter stopped flag */ + hw->adapter_stopped = false; + + /* We need to run link autotry after the driver loads */ + hw->mac.autotry_restart = true; + + return ret_val; +} + +/** + * txgbe_identify_phy - Get physical layer module + * @hw: pointer to hardware structure + * + * Determines the physical layer module found on the current adapter. + * If PHY already detected, maintains current PHY type in hw struct, + * otherwise executes the PHY detection routine. + **/ +s32 txgbe_identify_phy(struct txgbe_hw *hw) +{ + /* Detect PHY if not unknown - returns success if already detected. */ + s32 status = TXGBE_ERR_PHY_ADDR_INVALID; + enum txgbe_media_type media_type; + + DEBUGFUNC("\n"); + + if (!hw->phy.phy_semaphore_mask) { + hw->phy.phy_semaphore_mask = TXGBE_MNG_SWFW_SYNC_SW_PHY; + } + + media_type = TCALL(hw, mac.ops.get_media_type); + if (media_type == txgbe_media_type_copper) { + status = txgbe_init_external_phy(hw); + if (status != 0) { + return status; + } + txgbe_get_phy_id(hw); + hw->phy.type = txgbe_get_phy_type_from_id(hw); + status = 0; + } else if (media_type == txgbe_media_type_fiber) { + status = txgbe_identify_module(hw); + } else { + hw->phy.type = txgbe_phy_none; + status = 0; + } + + /* Return error if SFP module has been detected but is not supported */ + if (hw->phy.type == txgbe_phy_sfp_unsupported) + return TXGBE_ERR_SFP_NOT_SUPPORTED; + + return status; +} + + +/** + * txgbe_enable_rx_dma - Enable the Rx DMA unit on sapphire + * @hw: pointer to hardware structure + * @regval: register value to write to RXCTRL + * + * Enables the Rx DMA unit for sapphire + **/ +s32 txgbe_enable_rx_dma(struct txgbe_hw *hw, u32 regval) +{ + + DEBUGFUNC("\n"); + + /* + * Workaround for sapphire silicon errata when enabling the Rx datapath. + * If traffic is incoming before we enable the Rx unit, it could hang + * the Rx DMA unit. Therefore, make sure the security engine is + * completely disabled prior to enabling the Rx unit. + */ + + TCALL(hw, mac.ops.disable_sec_rx_path); + + if (regval & TXGBE_RDB_PB_CTL_RXEN) + TCALL(hw, mac.ops.enable_rx); + else + TCALL(hw, mac.ops.disable_rx); + + TCALL(hw, mac.ops.enable_sec_rx_path); + + return 0; +} + +/** + * txgbe_init_flash_params - Initialize flash params + * @hw: pointer to hardware structure + * + * Initializes the EEPROM parameters txgbe_eeprom_info within the + * txgbe_hw struct in order to set up EEPROM access. + **/ +s32 txgbe_init_flash_params(struct txgbe_hw *hw) +{ + struct txgbe_flash_info *flash = &hw->flash; + u32 eec; + + DEBUGFUNC("\n"); + + eec = 0x1000000; + flash->semaphore_delay = 10; + flash->dword_size = (eec >> 2); + flash->address_bits = 24; + DEBUGOUT3("FLASH params: size = %d, address bits: %d\n", + flash->dword_size, + flash->address_bits); + + return 0; +} + +/** + * txgbe_read_flash_buffer - Read FLASH dword(s) using + * fastest available method + * + * @hw: pointer to hardware structure + * @offset: offset of dword in EEPROM to read + * @dwords: number of dwords + * @data: dword(s) read from the EEPROM + * + * Retrieves 32 bit dword(s) read from EEPROM + **/ +s32 txgbe_read_flash_buffer(struct txgbe_hw *hw, u32 offset, + u32 dwords, u32 *data) +{ + s32 status = 0; + u32 i; + + DEBUGFUNC("\n"); + + TCALL(hw, eeprom.ops.init_params); + + if (!dwords || offset + dwords >= hw->flash.dword_size) { + status = TXGBE_ERR_INVALID_ARGUMENT; + ERROR_REPORT1(TXGBE_ERROR_ARGUMENT, "Invalid FLASH arguments"); + return status; + } + + for (i = 0; i < dwords; i++) { + wr32(hw, TXGBE_SPI_DATA, data[i]); + wr32(hw, TXGBE_SPI_CMD, + TXGBE_SPI_CMD_ADDR(offset + i) | + TXGBE_SPI_CMD_CMD(0x0)); + + status = po32m(hw, TXGBE_SPI_STATUS, + TXGBE_SPI_STATUS_OPDONE, TXGBE_SPI_STATUS_OPDONE, + TXGBE_SPI_TIMEOUT, 0); + if (status) { + DEBUGOUT("FLASH read timed out\n"); + break; + } + } + + return status; +} + +/** + * txgbe_write_flash_buffer - Write FLASH dword(s) using + * fastest available method + * + * @hw: pointer to hardware structure + * @offset: offset of dword in EEPROM to write + * @dwords: number of dwords + * @data: dword(s) write from to EEPROM + * + **/ +s32 txgbe_write_flash_buffer(struct txgbe_hw *hw, u32 offset, + u32 dwords, u32 *data) +{ + s32 status = 0; + u32 i; + + DEBUGFUNC("\n"); + + TCALL(hw, eeprom.ops.init_params); + + if (!dwords || offset + dwords >= hw->flash.dword_size) { + status = TXGBE_ERR_INVALID_ARGUMENT; + ERROR_REPORT1(TXGBE_ERROR_ARGUMENT, "Invalid FLASH arguments"); + return status; + } + + for (i = 0; i < dwords; i++) { + wr32(hw, TXGBE_SPI_CMD, + TXGBE_SPI_CMD_ADDR(offset + i) | + TXGBE_SPI_CMD_CMD(0x1)); + + status = po32m(hw, TXGBE_SPI_STATUS, + TXGBE_SPI_STATUS_OPDONE, TXGBE_SPI_STATUS_OPDONE, + TXGBE_SPI_TIMEOUT, 0); + if (status != 0) { + DEBUGOUT("FLASH write timed out\n"); + break; + } + data[i] = rd32(hw, TXGBE_SPI_DATA); + } + + return status; +} + +/** + * txgbe_init_eeprom_params - Initialize EEPROM params + * @hw: pointer to hardware structure + * + * Initializes the EEPROM parameters txgbe_eeprom_info within the + * txgbe_hw struct in order to set up EEPROM access. + **/ +s32 txgbe_init_eeprom_params(struct txgbe_hw *hw) +{ + struct txgbe_eeprom_info *eeprom = &hw->eeprom; + u16 eeprom_size; + s32 status = 0; + u16 data; + + DEBUGFUNC("\n"); + + if (eeprom->type == txgbe_eeprom_uninitialized) { + eeprom->semaphore_delay = 10; + eeprom->type = txgbe_eeprom_none; + + if (!(rd32(hw, TXGBE_SPI_STATUS) & + TXGBE_SPI_STATUS_FLASH_BYPASS)) { + eeprom->type = txgbe_flash; + + eeprom_size = 4096; + eeprom->word_size = eeprom_size >> 1; + + DEBUGOUT2("Eeprom params: type = %d, size = %d\n", + eeprom->type, eeprom->word_size); + } + } + + status = TCALL(hw, eeprom.ops.read, TXGBE_SW_REGION_PTR, + &data); + if (status) { + DEBUGOUT("NVM Read Error\n"); + return status; + } + eeprom->sw_region_offset = data >> 1; + + return status; +} + +/** + * txgbe_read_ee_hostif - Read EEPROM word using a host interface cmd + * assuming that the semaphore is already obtained. + * @hw: pointer to hardware structure + * @offset: offset of word in the EEPROM to read + * @data: word read from the EEPROM + * + * Reads a 16 bit word from the EEPROM using the hostif. + **/ +s32 txgbe_read_ee_hostif_data(struct txgbe_hw *hw, u16 offset, + u16 *data) +{ + s32 status; + struct txgbe_hic_read_shadow_ram buffer; + + DEBUGFUNC("\n"); + buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN; + buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; + + /* convert offset from words to bytes */ + buffer.address = TXGBE_CPU_TO_BE32(offset * 2); + /* one word */ + buffer.length = TXGBE_CPU_TO_BE16(sizeof(u16)); + + status = txgbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + TXGBE_HI_COMMAND_TIMEOUT, false); + + if (status) + return status; + if (txgbe_check_mng_access(hw)) + *data = (u16)rd32a(hw, TXGBE_MNG_MBOX, + FW_NVM_DATA_OFFSET); + else { + status = TXGBE_ERR_MNG_ACCESS_FAILED; + return status; + } + + return 0; +} + +/** + * txgbe_read_ee_hostif - Read EEPROM word using a host interface cmd + * @hw: pointer to hardware structure + * @offset: offset of word in the EEPROM to read + * @data: word read from the EEPROM + * + * Reads a 16 bit word from the EEPROM using the hostif. + **/ +s32 txgbe_read_ee_hostif(struct txgbe_hw *hw, u16 offset, + u16 *data) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH) == 0) { + status = txgbe_read_ee_hostif_data(hw, offset, data); + TCALL(hw, mac.ops.release_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH); + } else { + status = TXGBE_ERR_SWFW_SYNC; + } + + return status; +} + +/** + * txgbe_read_ee_hostif_buffer- Read EEPROM word(s) using hostif + * @hw: pointer to hardware structure + * @offset: offset of word in the EEPROM to read + * @words: number of words + * @data: word(s) read from the EEPROM + * + * Reads a 16 bit word(s) from the EEPROM using the hostif. + **/ +s32 txgbe_read_ee_hostif_buffer(struct txgbe_hw *hw, + u16 offset, u16 words, u16 *data) +{ + struct txgbe_hic_read_shadow_ram buffer; + u32 current_word = 0; + u16 words_to_read; + s32 status; + u32 i; + u32 value = 0; + + DEBUGFUNC("\n"); + + /* Take semaphore for the entire operation. */ + status = TCALL(hw, mac.ops.acquire_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH); + if (status) { + DEBUGOUT("EEPROM read buffer - semaphore failed\n"); + return status; + } + while (words) { + if (words > FW_MAX_READ_BUFFER_SIZE / 2) + words_to_read = FW_MAX_READ_BUFFER_SIZE / 2; + else + words_to_read = words; + + buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN; + buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; + + /* convert offset from words to bytes */ + buffer.address = TXGBE_CPU_TO_BE32((offset + current_word) * 2); + buffer.length = TXGBE_CPU_TO_BE16(words_to_read * 2); + + status = txgbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + TXGBE_HI_COMMAND_TIMEOUT, + false); + + if (status) { + DEBUGOUT("Host interface command failed\n"); + goto out; + } + + for (i = 0; i < words_to_read; i++) { + u32 reg = TXGBE_MNG_MBOX + (FW_NVM_DATA_OFFSET << 2) + + 2 * i; + if (txgbe_check_mng_access(hw)) + value = rd32(hw, reg); + else { + status = TXGBE_ERR_MNG_ACCESS_FAILED; + return status; + } + data[current_word] = (u16)(value & 0xffff); + current_word++; + i++; + if (i < words_to_read) { + value >>= 16; + data[current_word] = (u16)(value & 0xffff); + current_word++; + } + } + words -= words_to_read; + } + +out: + TCALL(hw, mac.ops.release_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH); + return status; +} + +/** + * txgbe_write_ee_hostif - Write EEPROM word using hostif + * @hw: pointer to hardware structure + * @offset: offset of word in the EEPROM to write + * @data: word write to the EEPROM + * + * Write a 16 bit word to the EEPROM using the hostif. + **/ +s32 txgbe_write_ee_hostif_data(struct txgbe_hw *hw, u16 offset, + u16 data) +{ + s32 status; + struct txgbe_hic_write_shadow_ram buffer; + + DEBUGFUNC("\n"); + + buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN; + buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; + + /* one word */ + buffer.length = TXGBE_CPU_TO_BE16(sizeof(u16)); + buffer.data = data; + buffer.address = TXGBE_CPU_TO_BE32(offset * 2); + + status = txgbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + TXGBE_HI_COMMAND_TIMEOUT, false); + + return status; +} + +/** + * txgbe_write_ee_hostif - Write EEPROM word using hostif + * @hw: pointer to hardware structure + * @offset: offset of word in the EEPROM to write + * @data: word write to the EEPROM + * + * Write a 16 bit word to the EEPROM using the hostif. + **/ +s32 txgbe_write_ee_hostif(struct txgbe_hw *hw, u16 offset, + u16 data) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH) == 0) { + status = txgbe_write_ee_hostif_data(hw, offset, data); + TCALL(hw, mac.ops.release_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH); + } else { + DEBUGOUT("write ee hostif failed to get semaphore"); + status = TXGBE_ERR_SWFW_SYNC; + } + + return status; +} + +/** + * txgbe_write_ee_hostif_buffer - Write EEPROM word(s) using hostif + * @hw: pointer to hardware structure + * @offset: offset of word in the EEPROM to write + * @words: number of words + * @data: word(s) write to the EEPROM + * + * Write a 16 bit word(s) to the EEPROM using the hostif. + **/ +s32 txgbe_write_ee_hostif_buffer(struct txgbe_hw *hw, + u16 offset, u16 words, u16 *data) +{ + s32 status = 0; + u16 i = 0; + + DEBUGFUNC("\n"); + + /* Take semaphore for the entire operation. */ + status = TCALL(hw, mac.ops.acquire_swfw_sync, + TXGBE_MNG_SWFW_SYNC_SW_FLASH); + if (status != 0) { + DEBUGOUT("EEPROM write buffer - semaphore failed\n"); + goto out; + } + + for (i = 0; i < words; i++) { + status = txgbe_write_ee_hostif_data(hw, offset + i, + data[i]); + + if (status != 0) { + DEBUGOUT("Eeprom buffered write failed\n"); + break; + } + } + + TCALL(hw, mac.ops.release_swfw_sync, TXGBE_MNG_SWFW_SYNC_SW_FLASH); +out: + + return status; +} + + + +/** + * txgbe_calc_eeprom_checksum - Calculates and returns the checksum + * @hw: pointer to hardware structure + * + * Returns a negative error code on error, or the 16-bit checksum + **/ +s32 txgbe_calc_eeprom_checksum(struct txgbe_hw *hw) +{ + u16 *buffer = NULL; + u32 buffer_size = 0; + + u16 *eeprom_ptrs = NULL; + u16 *local_buffer; + s32 status; + u16 checksum = 0; + u16 i; + + DEBUGFUNC("\n"); + + TCALL(hw, eeprom.ops.init_params); + + if (!buffer) { + eeprom_ptrs = (u16 *)vmalloc(TXGBE_EEPROM_LAST_WORD * + sizeof(u16)); + if (!eeprom_ptrs) + return TXGBE_ERR_NO_SPACE; + /* Read pointer area */ + status = txgbe_read_ee_hostif_buffer(hw, 0, + TXGBE_EEPROM_LAST_WORD, + eeprom_ptrs); + if (status) { + DEBUGOUT("Failed to read EEPROM image\n"); + return status; + } + local_buffer = eeprom_ptrs; + } else { + if (buffer_size < TXGBE_EEPROM_LAST_WORD) + return TXGBE_ERR_PARAM; + local_buffer = buffer; + } + + for (i = 0; i < TXGBE_EEPROM_LAST_WORD; i++) + if (i != hw->eeprom.sw_region_offset + TXGBE_EEPROM_CHECKSUM) + checksum += local_buffer[i]; + + checksum = (u16)TXGBE_EEPROM_SUM - checksum; + if (eeprom_ptrs) + vfree(eeprom_ptrs); + + return (s32)checksum; +} + +/** + * txgbe_update_eeprom_checksum - Updates the EEPROM checksum and flash + * @hw: pointer to hardware structure + * + * After writing EEPROM to shadow RAM using EEWR register, software calculates + * checksum and updates the EEPROM and instructs the hardware to update + * the flash. + **/ +s32 txgbe_update_eeprom_checksum(struct txgbe_hw *hw) +{ + s32 status; + u16 checksum = 0; + + DEBUGFUNC("\n"); + + /* Read the first word from the EEPROM. If this times out or fails, do + * not continue or we could be in for a very long wait while every + * EEPROM read fails + */ + status = txgbe_read_ee_hostif(hw, 0, &checksum); + if (status) { + DEBUGOUT("EEPROM read failed\n"); + return status; + } + + status = txgbe_calc_eeprom_checksum(hw); + if (status < 0) + return status; + + checksum = (u16)(status & 0xffff); + + status = txgbe_write_ee_hostif(hw, TXGBE_EEPROM_CHECKSUM, + checksum); + if (status) + return status; + + return status; +} + +/** + * txgbe_validate_eeprom_checksum - Validate EEPROM checksum + * @hw: pointer to hardware structure + * @checksum_val: calculated checksum + * + * Performs checksum calculation and validates the EEPROM checksum. If the + * caller does not need checksum_val, the value can be NULL. + **/ +s32 txgbe_validate_eeprom_checksum(struct txgbe_hw *hw, + u16 *checksum_val) +{ + s32 status; + u16 checksum; + u16 read_checksum = 0; + + DEBUGFUNC("\n"); + + /* Read the first word from the EEPROM. If this times out or fails, do + * not continue or we could be in for a very long wait while every + * EEPROM read fails + */ + status = TCALL(hw, eeprom.ops.read, 0, &checksum); + if (status) { + DEBUGOUT("EEPROM read failed\n"); + return status; + } + + status = TCALL(hw, eeprom.ops.calc_checksum); + if (status < 0) + return status; + + checksum = (u16)(status & 0xffff); + + status = txgbe_read_ee_hostif(hw, hw->eeprom.sw_region_offset + + TXGBE_EEPROM_CHECKSUM, + &read_checksum); + if (status) + return status; + + /* Verify read checksum from EEPROM is the same as + * calculated checksum + */ + if (read_checksum != checksum) { + status = TXGBE_ERR_EEPROM_CHECKSUM; + ERROR_REPORT1(TXGBE_ERROR_INVALID_STATE, + "Invalid EEPROM checksum\n"); + } + + /* If the user cares, return the calculated checksum */ + if (checksum_val) + *checksum_val = checksum; + + return status; +} + +/** + * txgbe_update_flash - Instruct HW to copy EEPROM to Flash device + * @hw: pointer to hardware structure + * + * Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash. + **/ +s32 txgbe_update_flash(struct txgbe_hw *hw) +{ + s32 status = 0; + union txgbe_hic_hdr2 buffer; + + DEBUGFUNC("\n"); + + buffer.req.cmd = FW_SHADOW_RAM_DUMP_CMD; + buffer.req.buf_lenh = 0; + buffer.req.buf_lenl = FW_SHADOW_RAM_DUMP_LEN; + buffer.req.checksum = FW_DEFAULT_CHECKSUM; + + status = txgbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + TXGBE_HI_COMMAND_TIMEOUT, false); + + return status; +} + + +/** + * txgbe_check_mac_link - Determine link and speed status + * @hw: pointer to hardware structure + * @speed: pointer to link speed + * @link_up: true when link is up + * @link_up_wait_to_complete: bool used to wait for link up or not + * + * Reads the links register to determine if link is up and the current speed + **/ +s32 txgbe_check_mac_link(struct txgbe_hw *hw, u32 *speed, + bool *link_up, bool link_up_wait_to_complete) +{ + u32 links_reg = 0; + u32 i; + u16 value; + + DEBUGFUNC("\n"); + + if (link_up_wait_to_complete) { + for (i = 0; i < TXGBE_LINK_UP_TIME; i++) { + if (TCALL(hw, mac.ops.get_media_type) == txgbe_media_type_copper && + ((hw->subsystem_id & 0xF0) != TXGBE_ID_SFI_XAUI)) { + /* read ext phy link status */ + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 0x03, 0x8008, &value); + if (value & 0x400) { + *link_up = true; + } else { + *link_up = false; + } + } else { + *link_up = true; + } + if (*link_up) { + links_reg = rd32(hw, + TXGBE_CFG_PORT_ST); + if (links_reg & TXGBE_CFG_PORT_ST_LINK_UP) { + *link_up = true; + break; + } else { + *link_up = false; + } + } + msleep(100); + } + } else { + if (TCALL(hw, mac.ops.get_media_type) == txgbe_media_type_copper && + ((hw->subsystem_id & 0xF0) != TXGBE_ID_SFI_XAUI)) { + /* read ext phy link status */ + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 0x03, 0x8008, &value); + if (value & 0x400) { + *link_up = true; + } else { + *link_up = false; + } + } else { + *link_up = true; + } + if (*link_up) { + links_reg = rd32(hw, TXGBE_CFG_PORT_ST); + if (links_reg & TXGBE_CFG_PORT_ST_LINK_UP) { + *link_up = true; + } else { + *link_up = false; + } + } + } + + if (*link_up) { + if (TCALL(hw, mac.ops.get_media_type) == txgbe_media_type_copper && + ((hw->subsystem_id & 0xF0) != TXGBE_ID_SFI_XAUI)) { + if ((value & 0xc000) == 0xc000) { + *speed = TXGBE_LINK_SPEED_10GB_FULL; + } else if ((value & 0xc000) == 0x8000) { + *speed = TXGBE_LINK_SPEED_1GB_FULL; + } else if ((value & 0xc000) == 0x4000) { + *speed = TXGBE_LINK_SPEED_100_FULL; + } else if ((value & 0xc000) == 0x0000) { + *speed = TXGBE_LINK_SPEED_10_FULL; + } + } else { + if ((links_reg & TXGBE_CFG_PORT_ST_LINK_10G) == + TXGBE_CFG_PORT_ST_LINK_10G) { + *speed = TXGBE_LINK_SPEED_10GB_FULL; + } else if ((links_reg & TXGBE_CFG_PORT_ST_LINK_1G) == + TXGBE_CFG_PORT_ST_LINK_1G){ + *speed = TXGBE_LINK_SPEED_1GB_FULL; + } else if ((links_reg & TXGBE_CFG_PORT_ST_LINK_100M) == + TXGBE_CFG_PORT_ST_LINK_100M){ + *speed = TXGBE_LINK_SPEED_100_FULL; + } else + *speed = TXGBE_LINK_SPEED_10_FULL; + } + } else + *speed = TXGBE_LINK_SPEED_UNKNOWN; + + return 0; +} + +/** + * txgbe_setup_eee - Enable/disable EEE support + * @hw: pointer to the HW structure + * @enable_eee: boolean flag to enable EEE + * + * Enable/disable EEE based on enable_eee flag. + * Auto-negotiation must be started after BASE-T EEE bits in PHY register 7.3C + * are modified. + * + **/ +s32 txgbe_setup_eee(struct txgbe_hw *hw, bool enable_eee) +{ + /* fix eee */ + UNREFERENCED_PARAMETER(hw); + UNREFERENCED_PARAMETER(enable_eee); + DEBUGFUNC("\n"); + + return 0; +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_hw.h b/drivers/net/ethernet/netswift/txgbe/txgbe_hw.h new file mode 100644 index 0000000000000..97ce62a2cd26a --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_hw.h @@ -0,0 +1,264 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + +#ifndef _TXGBE_HW_H_ +#define _TXGBE_HW_H_ + +#define TXGBE_EMC_INTERNAL_DATA 0x00 +#define TXGBE_EMC_INTERNAL_THERM_LIMIT 0x20 +#define TXGBE_EMC_DIODE1_DATA 0x01 +#define TXGBE_EMC_DIODE1_THERM_LIMIT 0x19 +#define TXGBE_EMC_DIODE2_DATA 0x23 +#define TXGBE_EMC_DIODE2_THERM_LIMIT 0x1A +#define TXGBE_EMC_DIODE3_DATA 0x2A +#define TXGBE_EMC_DIODE3_THERM_LIMIT 0x30 + +/** + * Packet Type decoding + **/ +/* txgbe_dec_ptype.mac: outer mac */ +enum txgbe_dec_ptype_mac { + TXGBE_DEC_PTYPE_MAC_IP = 0, + TXGBE_DEC_PTYPE_MAC_L2 = 2, + TXGBE_DEC_PTYPE_MAC_FCOE = 3, +}; + +/* txgbe_dec_ptype.[e]ip: outer&encaped ip */ +#define TXGBE_DEC_PTYPE_IP_FRAG (0x4) +enum txgbe_dec_ptype_ip { + TXGBE_DEC_PTYPE_IP_NONE = 0, + TXGBE_DEC_PTYPE_IP_IPV4 = 1, + TXGBE_DEC_PTYPE_IP_IPV6 = 2, + TXGBE_DEC_PTYPE_IP_FGV4 = + (TXGBE_DEC_PTYPE_IP_FRAG | TXGBE_DEC_PTYPE_IP_IPV4), + TXGBE_DEC_PTYPE_IP_FGV6 = + (TXGBE_DEC_PTYPE_IP_FRAG | TXGBE_DEC_PTYPE_IP_IPV6), +}; + +/* txgbe_dec_ptype.etype: encaped type */ +enum txgbe_dec_ptype_etype { + TXGBE_DEC_PTYPE_ETYPE_NONE = 0, + TXGBE_DEC_PTYPE_ETYPE_IPIP = 1, /* IP+IP */ + TXGBE_DEC_PTYPE_ETYPE_IG = 2, /* IP+GRE */ + TXGBE_DEC_PTYPE_ETYPE_IGM = 3, /* IP+GRE+MAC */ + TXGBE_DEC_PTYPE_ETYPE_IGMV = 4, /* IP+GRE+MAC+VLAN */ +}; + +/* txgbe_dec_ptype.proto: payload proto */ +enum txgbe_dec_ptype_prot { + TXGBE_DEC_PTYPE_PROT_NONE = 0, + TXGBE_DEC_PTYPE_PROT_UDP = 1, + TXGBE_DEC_PTYPE_PROT_TCP = 2, + TXGBE_DEC_PTYPE_PROT_SCTP = 3, + TXGBE_DEC_PTYPE_PROT_ICMP = 4, + TXGBE_DEC_PTYPE_PROT_TS = 5, /* time sync */ +}; + +/* txgbe_dec_ptype.layer: payload layer */ +enum txgbe_dec_ptype_layer { + TXGBE_DEC_PTYPE_LAYER_NONE = 0, + TXGBE_DEC_PTYPE_LAYER_PAY2 = 1, + TXGBE_DEC_PTYPE_LAYER_PAY3 = 2, + TXGBE_DEC_PTYPE_LAYER_PAY4 = 3, +}; + +struct txgbe_dec_ptype { + u32 ptype:8; + u32 known:1; + u32 mac:2; /* outer mac */ + u32 ip:3; /* outer ip*/ + u32 etype:3; /* encaped type */ + u32 eip:3; /* encaped ip */ + u32 prot:4; /* payload proto */ + u32 layer:3; /* payload layer */ +}; +typedef struct txgbe_dec_ptype txgbe_dptype; + + +void txgbe_dcb_get_rtrup2tc(struct txgbe_hw *hw, u8 *map); +u16 txgbe_get_pcie_msix_count(struct txgbe_hw *hw); +s32 txgbe_init_hw(struct txgbe_hw *hw); +s32 txgbe_start_hw(struct txgbe_hw *hw); +s32 txgbe_clear_hw_cntrs(struct txgbe_hw *hw); +s32 txgbe_read_pba_string(struct txgbe_hw *hw, u8 *pba_num, + u32 pba_num_size); +s32 txgbe_get_mac_addr(struct txgbe_hw *hw, u8 *mac_addr); +s32 txgbe_get_bus_info(struct txgbe_hw *hw); +void txgbe_set_pci_config_data(struct txgbe_hw *hw, u16 link_status); +void txgbe_set_lan_id_multi_port_pcie(struct txgbe_hw *hw); +s32 txgbe_stop_adapter(struct txgbe_hw *hw); + +s32 txgbe_led_on(struct txgbe_hw *hw, u32 index); +s32 txgbe_led_off(struct txgbe_hw *hw, u32 index); + +s32 txgbe_set_rar(struct txgbe_hw *hw, u32 index, u8 *addr, u64 pools, + u32 enable_addr); +s32 txgbe_clear_rar(struct txgbe_hw *hw, u32 index); +s32 txgbe_init_rx_addrs(struct txgbe_hw *hw); +s32 txgbe_update_mc_addr_list(struct txgbe_hw *hw, u8 *mc_addr_list, + u32 mc_addr_count, + txgbe_mc_addr_itr func, bool clear); +s32 txgbe_update_uc_addr_list(struct txgbe_hw *hw, u8 *addr_list, + u32 addr_count, txgbe_mc_addr_itr func); +s32 txgbe_enable_mc(struct txgbe_hw *hw); +s32 txgbe_disable_mc(struct txgbe_hw *hw); +s32 txgbe_disable_sec_rx_path(struct txgbe_hw *hw); +s32 txgbe_enable_sec_rx_path(struct txgbe_hw *hw); + +s32 txgbe_fc_enable(struct txgbe_hw *hw); +bool txgbe_device_supports_autoneg_fc(struct txgbe_hw *hw); +void txgbe_fc_autoneg(struct txgbe_hw *hw); +s32 txgbe_setup_fc(struct txgbe_hw *hw); + +s32 txgbe_validate_mac_addr(u8 *mac_addr); +s32 txgbe_acquire_swfw_sync(struct txgbe_hw *hw, u32 mask); +void txgbe_release_swfw_sync(struct txgbe_hw *hw, u32 mask); +s32 txgbe_disable_pcie_master(struct txgbe_hw *hw); + + +s32 txgbe_get_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr); +s32 txgbe_set_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr); + +s32 txgbe_set_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq); +s32 txgbe_set_vmdq_san_mac(struct txgbe_hw *hw, u32 vmdq); +s32 txgbe_clear_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq); +s32 txgbe_insert_mac_addr(struct txgbe_hw *hw, u8 *addr, u32 vmdq); +s32 txgbe_init_uta_tables(struct txgbe_hw *hw); +s32 txgbe_set_vfta(struct txgbe_hw *hw, u32 vlan, + u32 vind, bool vlan_on); +s32 txgbe_set_vlvf(struct txgbe_hw *hw, u32 vlan, u32 vind, + bool vlan_on, bool *vfta_changed); +s32 txgbe_clear_vfta(struct txgbe_hw *hw); +s32 txgbe_find_vlvf_slot(struct txgbe_hw *hw, u32 vlan); + +s32 txgbe_get_wwn_prefix(struct txgbe_hw *hw, u16 *wwnn_prefix, + u16 *wwpn_prefix); + +void txgbe_set_mac_anti_spoofing(struct txgbe_hw *hw, bool enable, int pf); +void txgbe_set_vlan_anti_spoofing(struct txgbe_hw *hw, bool enable, int vf); +void txgbe_set_ethertype_anti_spoofing(struct txgbe_hw *hw, + bool enable, int vf); +s32 txgbe_get_device_caps(struct txgbe_hw *hw, u16 *device_caps); +void txgbe_set_rxpba(struct txgbe_hw *hw, int num_pb, u32 headroom, + int strategy); +s32 txgbe_set_fw_drv_ver(struct txgbe_hw *hw, u8 maj, u8 min, + u8 build, u8 ver); +s32 txgbe_reset_hostif(struct txgbe_hw *hw); +u8 txgbe_calculate_checksum(u8 *buffer, u32 length); +s32 txgbe_host_interface_command(struct txgbe_hw *hw, u32 *buffer, + u32 length, u32 timeout, bool return_data); + +void txgbe_clear_tx_pending(struct txgbe_hw *hw); +void txgbe_stop_mac_link_on_d3(struct txgbe_hw *hw); +bool txgbe_mng_present(struct txgbe_hw *hw); +bool txgbe_check_mng_access(struct txgbe_hw *hw); + +s32 txgbe_get_thermal_sensor_data(struct txgbe_hw *hw); +s32 txgbe_init_thermal_sensor_thresh(struct txgbe_hw *hw); +void txgbe_enable_rx(struct txgbe_hw *hw); +void txgbe_disable_rx(struct txgbe_hw *hw); +s32 txgbe_setup_mac_link_multispeed_fiber(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); +int txgbe_check_flash_load(struct txgbe_hw *hw, u32 check_bit); + +/* @txgbe_api.h */ +s32 txgbe_reinit_fdir_tables(struct txgbe_hw *hw); +s32 txgbe_init_fdir_signature(struct txgbe_hw *hw, u32 fdirctrl); +s32 txgbe_init_fdir_perfect(struct txgbe_hw *hw, u32 fdirctrl, + bool cloud_mode); +s32 txgbe_fdir_add_signature_filter(struct txgbe_hw *hw, + union txgbe_atr_hash_dword input, + union txgbe_atr_hash_dword common, + u8 queue); +s32 txgbe_fdir_set_input_mask(struct txgbe_hw *hw, + union txgbe_atr_input *input_mask, bool cloud_mode); +s32 txgbe_fdir_write_perfect_filter(struct txgbe_hw *hw, + union txgbe_atr_input *input, + u16 soft_id, u8 queue, bool cloud_mode); +s32 txgbe_fdir_erase_perfect_filter(struct txgbe_hw *hw, + union txgbe_atr_input *input, + u16 soft_id); +s32 txgbe_fdir_add_perfect_filter(struct txgbe_hw *hw, + union txgbe_atr_input *input, + union txgbe_atr_input *mask, + u16 soft_id, + u8 queue, + bool cloud_mode); +void txgbe_atr_compute_perfect_hash(union txgbe_atr_input *input, + union txgbe_atr_input *mask); +u32 txgbe_atr_compute_sig_hash(union txgbe_atr_hash_dword input, + union txgbe_atr_hash_dword common); + +s32 txgbe_get_link_capabilities(struct txgbe_hw *hw, + u32 *speed, bool *autoneg); +enum txgbe_media_type txgbe_get_media_type(struct txgbe_hw *hw); +void txgbe_disable_tx_laser_multispeed_fiber(struct txgbe_hw *hw); +void txgbe_enable_tx_laser_multispeed_fiber(struct txgbe_hw *hw); +void txgbe_flap_tx_laser_multispeed_fiber(struct txgbe_hw *hw); +void txgbe_set_hard_rate_select_speed(struct txgbe_hw *hw, + u32 speed); +s32 txgbe_setup_mac_link(struct txgbe_hw *hw, u32 speed, + bool autoneg_wait_to_complete); +void txgbe_init_mac_link_ops(struct txgbe_hw *hw); +s32 txgbe_reset_hw(struct txgbe_hw *hw); +s32 txgbe_identify_phy(struct txgbe_hw *hw); +s32 txgbe_init_phy_ops(struct txgbe_hw *hw); +s32 txgbe_enable_rx_dma(struct txgbe_hw *hw, u32 regval); +s32 txgbe_init_ops(struct txgbe_hw *hw); +s32 txgbe_setup_eee(struct txgbe_hw *hw, bool enable_eee); + +s32 txgbe_init_flash_params(struct txgbe_hw *hw); +s32 txgbe_read_flash_buffer(struct txgbe_hw *hw, u32 offset, + u32 dwords, u32 *data); +s32 txgbe_write_flash_buffer(struct txgbe_hw *hw, u32 offset, + u32 dwords, u32 *data); + +s32 txgbe_read_eeprom(struct txgbe_hw *hw, + u16 offset, u16 *data); +s32 txgbe_read_eeprom_buffer(struct txgbe_hw *hw, u16 offset, + u16 words, u16 *data); +s32 txgbe_init_eeprom_params(struct txgbe_hw *hw); +s32 txgbe_update_eeprom_checksum(struct txgbe_hw *hw); +s32 txgbe_calc_eeprom_checksum(struct txgbe_hw *hw); +s32 txgbe_validate_eeprom_checksum(struct txgbe_hw *hw, + u16 *checksum_val); +s32 txgbe_update_flash(struct txgbe_hw *hw); +s32 txgbe_write_ee_hostif_buffer(struct txgbe_hw *hw, + u16 offset, u16 words, u16 *data); +s32 txgbe_write_ee_hostif(struct txgbe_hw *hw, u16 offset, + u16 data); +s32 txgbe_read_ee_hostif_buffer(struct txgbe_hw *hw, + u16 offset, u16 words, u16 *data); +s32 txgbe_read_ee_hostif(struct txgbe_hw *hw, u16 offset, u16 *data); +u32 txgbe_rd32_epcs(struct txgbe_hw *hw, u32 addr); +void txgbe_wr32_epcs(struct txgbe_hw *hw, u32 addr, u32 data); +void txgbe_wr32_ephy(struct txgbe_hw *hw, u32 addr, u32 data); +u32 rd32_ephy(struct txgbe_hw *hw, u32 addr); + +s32 txgbe_upgrade_flash_hostif(struct txgbe_hw *hw, u32 region, + const u8 *data, u32 size); + +s32 txgbe_set_link_to_kr(struct txgbe_hw *hw, bool autoneg); +s32 txgbe_set_link_to_kx4(struct txgbe_hw *hw, bool autoneg); + +s32 txgbe_set_link_to_kx(struct txgbe_hw *hw, + u32 speed, + bool autoneg); + + +#endif /* _TXGBE_HW_H_ */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_lib.c b/drivers/net/ethernet/netswift/txgbe/txgbe_lib.c new file mode 100644 index 0000000000000..bb402e45557eb --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_lib.c @@ -0,0 +1,959 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_lib.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#include "txgbe.h" + +/** + * txgbe_cache_ring_dcb_vmdq - Descriptor ring to register mapping for VMDq + * @adapter: board private structure to initialize + * + * Cache the descriptor ring offsets for VMDq to the assigned rings. It + * will also try to cache the proper offsets if RSS/FCoE are enabled along + * with VMDq. + * + **/ +static bool txgbe_cache_ring_dcb_vmdq(struct txgbe_adapter *adapter) +{ + struct txgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + int i; + u16 reg_idx; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + /* verify we have DCB enabled before proceeding */ + if (tcs <= 1) + return false; + + /* verify we have VMDq enabled before proceeding */ + if (!(adapter->flags & TXGBE_FLAG_VMDQ_ENABLED)) + return false; + + /* start at VMDq register offset for SR-IOV enabled setups */ + reg_idx = vmdq->offset * __ALIGN_MASK(1, ~vmdq->mask); + for (i = 0; i < adapter->num_rx_queues; i++, reg_idx++) { + /* If we are greater than indices move to next pool */ + if ((reg_idx & ~vmdq->mask) >= tcs) + reg_idx = __ALIGN_MASK(reg_idx, ~vmdq->mask); + adapter->rx_ring[i]->reg_idx = reg_idx; + } + + reg_idx = vmdq->offset * __ALIGN_MASK(1, ~vmdq->mask); + for (i = 0; i < adapter->num_tx_queues; i++, reg_idx++) { + /* If we are greater than indices move to next pool */ + if ((reg_idx & ~vmdq->mask) >= tcs) + reg_idx = __ALIGN_MASK(reg_idx, ~vmdq->mask); + adapter->tx_ring[i]->reg_idx = reg_idx; + } + + return true; +} + +/* txgbe_get_first_reg_idx - Return first register index associated with ring */ +static void txgbe_get_first_reg_idx(struct txgbe_adapter *adapter, u8 tc, + u16 *tx, u16 *rx) +{ + struct net_device *dev = adapter->netdev; + u8 num_tcs = netdev_get_num_tc(dev); + + *tx = 0; + *rx = 0; + + + if (num_tcs > 4) { + /* + * TCs : TC0/1 TC2/3 TC4-7 + * TxQs/TC: 32 16 8 + * RxQs/TC: 16 16 16 + */ + *rx = tc << 4; + if (tc < 3) + *tx = tc << 5; /* 0, 32, 64 */ + else if (tc < 5) + *tx = (tc + 2) << 4; /* 80, 96 */ + else + *tx = (tc + 8) << 3; /* 104, 112, 120 */ + } else { + /* + * TCs : TC0 TC1 TC2/3 + * TxQs/TC: 64 32 16 + * RxQs/TC: 32 32 32 + */ + *rx = tc << 5; + if (tc < 2) + *tx = tc << 6; /* 0, 64 */ + else + *tx = (tc + 4) << 4; /* 96, 112 */ + } + +} + +/** + * txgbe_cache_ring_dcb - Descriptor ring to register mapping for DCB + * @adapter: board private structure to initialize + * + * Cache the descriptor ring offsets for DCB to the assigned rings. + * + **/ +static bool txgbe_cache_ring_dcb(struct txgbe_adapter *adapter) +{ + int tc, offset, rss_i, i; + u16 tx_idx, rx_idx; + struct net_device *dev = adapter->netdev; + u8 num_tcs = netdev_get_num_tc(dev); + + if (num_tcs <= 1) + return false; + + rss_i = adapter->ring_feature[RING_F_RSS].indices; + + for (tc = 0, offset = 0; tc < num_tcs; tc++, offset += rss_i) { + txgbe_get_first_reg_idx(adapter, (u8)tc, &tx_idx, &rx_idx); + for (i = 0; i < rss_i; i++, tx_idx++, rx_idx++) { + adapter->tx_ring[offset + i]->reg_idx = tx_idx; + adapter->rx_ring[offset + i]->reg_idx = rx_idx; + adapter->tx_ring[offset + i]->dcb_tc = (u8)tc; + adapter->rx_ring[offset + i]->dcb_tc = (u8)tc; + } + } + + return true; +} + +/** + * txgbe_cache_ring_vmdq - Descriptor ring to register mapping for VMDq + * @adapter: board private structure to initialize + * + * Cache the descriptor ring offsets for VMDq to the assigned rings. It + * will also try to cache the proper offsets if RSS/FCoE/SRIOV are enabled along + * with VMDq. + * + **/ +static bool txgbe_cache_ring_vmdq(struct txgbe_adapter *adapter) +{ + struct txgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + struct txgbe_ring_feature *rss = &adapter->ring_feature[RING_F_RSS]; + int i; + u16 reg_idx; + + /* only proceed if VMDq is enabled */ + if (!(adapter->flags & TXGBE_FLAG_VMDQ_ENABLED)) + return false; + + /* start at VMDq register offset for SR-IOV enabled setups */ + reg_idx = vmdq->offset * __ALIGN_MASK(1, ~vmdq->mask); + for (i = 0; i < adapter->num_rx_queues; i++, reg_idx++) { + /* If we are greater than indices move to next pool */ + if ((reg_idx & ~vmdq->mask) >= rss->indices) + reg_idx = __ALIGN_MASK(reg_idx, ~vmdq->mask); + adapter->rx_ring[i]->reg_idx = reg_idx; + } + + reg_idx = vmdq->offset * __ALIGN_MASK(1, ~vmdq->mask); + for (i = 0; i < adapter->num_tx_queues; i++, reg_idx++) { + /* If we are greater than indices move to next pool */ + if ((reg_idx & rss->mask) >= rss->indices) + reg_idx = __ALIGN_MASK(reg_idx, ~vmdq->mask); + adapter->tx_ring[i]->reg_idx = reg_idx; + } + + return true; +} + +/** + * txgbe_cache_ring_rss - Descriptor ring to register mapping for RSS + * @adapter: board private structure to initialize + * + * Cache the descriptor ring offsets for RSS, ATR, FCoE, and SR-IOV. + * + **/ +static bool txgbe_cache_ring_rss(struct txgbe_adapter *adapter) +{ + u16 i; + + for (i = 0; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i]->reg_idx = i; + + for (i = 0; i < adapter->num_tx_queues; i++) + adapter->tx_ring[i]->reg_idx = i; + + return true; +} + +/** + * txgbe_cache_ring_register - Descriptor ring to register mapping + * @adapter: board private structure to initialize + * + * Once we know the feature-set enabled for the device, we'll cache + * the register offset the descriptor ring is assigned to. + * + * Note, the order the various feature calls is important. It must start with + * the "most" features enabled at the same time, then trickle down to the + * least amount of features turned on at once. + **/ +static void txgbe_cache_ring_register(struct txgbe_adapter *adapter) +{ + if (txgbe_cache_ring_dcb_vmdq(adapter)) + return; + + if (txgbe_cache_ring_dcb(adapter)) + return; + + if (txgbe_cache_ring_vmdq(adapter)) + return; + + txgbe_cache_ring_rss(adapter); +} + +#define TXGBE_RSS_64Q_MASK 0x3F +#define TXGBE_RSS_16Q_MASK 0xF +#define TXGBE_RSS_8Q_MASK 0x7 +#define TXGBE_RSS_4Q_MASK 0x3 +#define TXGBE_RSS_2Q_MASK 0x1 +#define TXGBE_RSS_DISABLED_MASK 0x0 + +/** + * txgbe_set_dcb_vmdq_queues: Allocate queues for VMDq devices w/ DCB + * @adapter: board private structure to initialize + * + * When VMDq (Virtual Machine Devices queue) is enabled, allocate queues + * and VM pools where appropriate. Also assign queues based on DCB + * priorities and map accordingly.. + * + **/ +static bool txgbe_set_dcb_vmdq_queues(struct txgbe_adapter *adapter) +{ + u16 i; + u16 vmdq_i = adapter->ring_feature[RING_F_VMDQ].limit; + u16 vmdq_m = 0; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + /* verify we have DCB enabled before proceeding */ + if (tcs <= 1) + return false; + + /* verify we have VMDq enabled before proceeding */ + if (!(adapter->flags & TXGBE_FLAG_VMDQ_ENABLED)) + return false; + + /* Add starting offset to total pool count */ + vmdq_i += adapter->ring_feature[RING_F_VMDQ].offset; + + /* 16 pools w/ 8 TC per pool */ + if (tcs > 4) { + vmdq_i = min_t(u16, vmdq_i, 16); + vmdq_m = TXGBE_VMDQ_8Q_MASK; + /* 32 pools w/ 4 TC per pool */ + } else { + vmdq_i = min_t(u16, vmdq_i, 32); + vmdq_m = TXGBE_VMDQ_4Q_MASK; + } + + /* remove the starting offset from the pool count */ + vmdq_i -= adapter->ring_feature[RING_F_VMDQ].offset; + + /* save features for later use */ + adapter->ring_feature[RING_F_VMDQ].indices = vmdq_i; + adapter->ring_feature[RING_F_VMDQ].mask = vmdq_m; + + /* + * We do not support DCB, VMDq, and RSS all simultaneously + * so we will disable RSS since it is the lowest priority + */ + adapter->ring_feature[RING_F_RSS].indices = 1; + adapter->ring_feature[RING_F_RSS].mask = TXGBE_RSS_DISABLED_MASK; + + adapter->queues_per_pool = tcs; + + adapter->num_tx_queues = vmdq_i * tcs; + adapter->num_rx_queues = vmdq_i * tcs; + + /* disable ATR as it is not supported when VMDq is enabled */ + adapter->flags &= ~TXGBE_FLAG_FDIR_HASH_CAPABLE; + + /* configure TC to queue mapping */ + for (i = 0; i < tcs; i++) + netdev_set_tc_queue(adapter->netdev, (u8)i, 1, i); + + return true; +} + +/** + * txgbe_set_dcb_queues: Allocate queues for a DCB-enabled device + * @adapter: board private structure to initialize + * + * When DCB (Data Center Bridging) is enabled, allocate queues for + * each traffic class. If multiqueue isn't available,then abort DCB + * initialization. + * + * This function handles all combinations of DCB, RSS, and FCoE. + * + **/ +static bool txgbe_set_dcb_queues(struct txgbe_adapter *adapter) +{ + struct net_device *dev = adapter->netdev; + struct txgbe_ring_feature *f; + u16 rss_i, rss_m, i; + u16 tcs; + + /* Map queue offset and counts onto allocated tx queues */ + tcs = netdev_get_num_tc(dev); + + if (tcs <= 1) + return false; + + /* determine the upper limit for our current DCB mode */ + rss_i = dev->num_tx_queues / tcs; + + if (tcs > 4) { + /* 8 TC w/ 8 queues per TC */ + rss_i = min_t(u16, rss_i, 8); + rss_m = TXGBE_RSS_8Q_MASK; + } else { + /* 4 TC w/ 16 queues per TC */ + rss_i = min_t(u16, rss_i, 16); + rss_m = TXGBE_RSS_16Q_MASK; + } + + /* set RSS mask and indices */ + f = &adapter->ring_feature[RING_F_RSS]; + rss_i = min_t(u16, rss_i, f->limit); + f->indices = rss_i; + f->mask = rss_m; + + /* disable ATR as it is not supported when DCB is enabled */ + adapter->flags &= ~TXGBE_FLAG_FDIR_HASH_CAPABLE; + + for (i = 0; i < tcs; i++) + netdev_set_tc_queue(dev, (u8)i, rss_i, rss_i * i); + + adapter->num_tx_queues = rss_i * tcs; + adapter->num_rx_queues = rss_i * tcs; + + return true; +} + +/** + * txgbe_set_vmdq_queues: Allocate queues for VMDq devices + * @adapter: board private structure to initialize + * + * When VMDq (Virtual Machine Devices queue) is enabled, allocate queues + * and VM pools where appropriate. If RSS is available, then also try and + * enable RSS and map accordingly. + * + **/ +static bool txgbe_set_vmdq_queues(struct txgbe_adapter *adapter) +{ + u16 vmdq_i = adapter->ring_feature[RING_F_VMDQ].limit; + u16 vmdq_m = 0; + u16 rss_i = adapter->ring_feature[RING_F_RSS].limit; + u16 rss_m = TXGBE_RSS_DISABLED_MASK; + + /* only proceed if VMDq is enabled */ + if (!(adapter->flags & TXGBE_FLAG_VMDQ_ENABLED)) + return false; + /* Add starting offset to total pool count */ + vmdq_i += adapter->ring_feature[RING_F_VMDQ].offset; + + /* double check we are limited to maximum pools */ + vmdq_i = min_t(u16, TXGBE_MAX_VMDQ_INDICES, vmdq_i); + + /* 64 pool mode with 2 queues per pool, or + * 16/32/64 pool mode with 1 queue per pool */ + if ((vmdq_i > 32) || (rss_i < 4)) { + vmdq_m = TXGBE_VMDQ_2Q_MASK; + rss_m = TXGBE_RSS_2Q_MASK; + rss_i = min_t(u16, rss_i, 2); + /* 32 pool mode with 4 queues per pool */ + } else { + vmdq_m = TXGBE_VMDQ_4Q_MASK; + rss_m = TXGBE_RSS_4Q_MASK; + rss_i = 4; + } + + /* remove the starting offset from the pool count */ + vmdq_i -= adapter->ring_feature[RING_F_VMDQ].offset; + + /* save features for later use */ + adapter->ring_feature[RING_F_VMDQ].indices = vmdq_i; + adapter->ring_feature[RING_F_VMDQ].mask = vmdq_m; + + /* limit RSS based on user input and save for later use */ + adapter->ring_feature[RING_F_RSS].indices = rss_i; + adapter->ring_feature[RING_F_RSS].mask = rss_m; + + adapter->queues_per_pool = rss_i; + + adapter->num_rx_queues = vmdq_i * rss_i; + adapter->num_tx_queues = vmdq_i * rss_i; + + /* disable ATR as it is not supported when VMDq is enabled */ + adapter->flags &= ~TXGBE_FLAG_FDIR_HASH_CAPABLE; + + return true; +} + +/** + * txgbe_set_rss_queues: Allocate queues for RSS + * @adapter: board private structure to initialize + * + * This is our "base" multiqueue mode. RSS (Receive Side Scaling) will try + * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU. + * + **/ +static bool txgbe_set_rss_queues(struct txgbe_adapter *adapter) +{ + struct txgbe_ring_feature *f; + u16 rss_i; + + /* set mask for 16 queue limit of RSS */ + f = &adapter->ring_feature[RING_F_RSS]; + rss_i = f->limit; + + f->indices = rss_i; + f->mask = TXGBE_RSS_64Q_MASK; + + /* disable ATR by default, it will be configured below */ + adapter->flags &= ~TXGBE_FLAG_FDIR_HASH_CAPABLE; + + /* + * Use Flow Director in addition to RSS to ensure the best + * distribution of flows across cores, even when an FDIR flow + * isn't matched. + */ + if (rss_i > 1 && adapter->atr_sample_rate) { + f = &adapter->ring_feature[RING_F_FDIR]; + + rss_i = f->indices = f->limit; + + if (!(adapter->flags & TXGBE_FLAG_FDIR_PERFECT_CAPABLE)) + adapter->flags |= TXGBE_FLAG_FDIR_HASH_CAPABLE; + } + + adapter->num_rx_queues = rss_i; + adapter->num_tx_queues = rss_i; + + return true; +} + +/* + * txgbe_set_num_queues: Allocate queues for device, feature dependent + * @adapter: board private structure to initialize + * + * This is the top level queue allocation routine. The order here is very + * important, starting with the "most" number of features turned on at once, + * and ending with the smallest set of features. This way large combinations + * can be allocated if they're turned on, and smaller combinations are the + * fallthrough conditions. + * + **/ +static void txgbe_set_num_queues(struct txgbe_adapter *adapter) +{ + /* Start with base case */ + adapter->num_rx_queues = 1; + adapter->num_tx_queues = 1; + adapter->queues_per_pool = 1; + + if (txgbe_set_dcb_vmdq_queues(adapter)) + return; + + if (txgbe_set_dcb_queues(adapter)) + return; + + if (txgbe_set_vmdq_queues(adapter)) + return; + + txgbe_set_rss_queues(adapter); +} + +/** + * txgbe_acquire_msix_vectors - acquire MSI-X vectors + * @adapter: board private structure + * + * Attempts to acquire a suitable range of MSI-X vector interrupts. Will + * return a negative error code if unable to acquire MSI-X vectors for any + * reason. + */ +static int txgbe_acquire_msix_vectors(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i, vectors, vector_threshold; + + if (!(adapter->flags & TXGBE_FLAG_MSIX_CAPABLE)) + return -EOPNOTSUPP; + + /* We start by asking for one vector per queue pair */ + vectors = max(adapter->num_rx_queues, adapter->num_tx_queues); + + /* It is easy to be greedy for MSI-X vectors. However, it really + * doesn't do much good if we have a lot more vectors than CPUs. We'll + * be somewhat conservative and only ask for (roughly) the same number + * of vectors as there are CPUs. + */ + vectors = min_t(int, vectors, num_online_cpus()); + + /* Some vectors are necessary for non-queue interrupts */ + vectors += NON_Q_VECTORS; + + /* Hardware can only support a maximum of hw.mac->max_msix_vectors. + * With features such as RSS and VMDq, we can easily surpass the + * number of Rx and Tx descriptor queues supported by our device. + * Thus, we cap the maximum in the rare cases where the CPU count also + * exceeds our vector limit + */ + vectors = min_t(int, vectors, hw->mac.max_msix_vectors); + + /* We want a minimum of two MSI-X vectors for (1) a TxQ[0] + RxQ[0] + * handler, and (2) an Other (Link Status Change, etc.) handler. + */ + vector_threshold = MIN_MSIX_COUNT; + + adapter->msix_entries = kcalloc(vectors, + sizeof(struct msix_entry), + GFP_KERNEL); + if (!adapter->msix_entries) + return -ENOMEM; + + for (i = 0; i < vectors; i++) + adapter->msix_entries[i].entry = i; + + vectors = pci_enable_msix_range(adapter->pdev, adapter->msix_entries, + vector_threshold, vectors); + if (vectors < 0) { + /* A negative count of allocated vectors indicates an error in + * acquiring within the specified range of MSI-X vectors */ + e_dev_warn("Failed to allocate MSI-X interrupts. Err: %d\n", + vectors); + + adapter->flags &= ~TXGBE_FLAG_MSIX_ENABLED; + kfree(adapter->msix_entries); + adapter->msix_entries = NULL; + + return vectors; + } + + /* we successfully allocated some number of vectors within our + * requested range. + */ + adapter->flags |= TXGBE_FLAG_MSIX_ENABLED; + + /* Adjust for only the vectors we'll use, which is minimum + * of max_q_vectors, or the number of vectors we were allocated. + */ + vectors -= NON_Q_VECTORS; + adapter->num_q_vectors = min_t(int, vectors, adapter->max_q_vectors); + + return 0; +} + +static void txgbe_add_ring(struct txgbe_ring *ring, + struct txgbe_ring_container *head) +{ + ring->next = head->ring; + head->ring = ring; + head->count++; +} + +/** + * txgbe_alloc_q_vector - Allocate memory for a single interrupt vector + * @adapter: board private structure to initialize + * @v_count: q_vectors allocated on adapter, used for ring interleaving + * @v_idx: index of vector in adapter struct + * @txr_count: total number of Tx rings to allocate + * @txr_idx: index of first Tx ring to allocate + * @rxr_count: total number of Rx rings to allocate + * @rxr_idx: index of first Rx ring to allocate + * + * We allocate one q_vector. If allocation fails we return -ENOMEM. + **/ +static int txgbe_alloc_q_vector(struct txgbe_adapter *adapter, + unsigned int v_count, unsigned int v_idx, + unsigned int txr_count, unsigned int txr_idx, + unsigned int rxr_count, unsigned int rxr_idx) +{ + struct txgbe_q_vector *q_vector; + struct txgbe_ring *ring; + int node = -1; + int cpu = -1; + u8 tcs = netdev_get_num_tc(adapter->netdev); + int ring_count, size; + + /* note this will allocate space for the ring structure as well! */ + ring_count = txr_count + rxr_count; + size = sizeof(struct txgbe_q_vector) + + (sizeof(struct txgbe_ring) * ring_count); + + /* customize cpu for Flow Director mapping */ + if ((tcs <= 1) && !(adapter->flags & TXGBE_FLAG_VMDQ_ENABLED)) { + u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; + if (rss_i > 1 && adapter->atr_sample_rate) { + if (cpu_online(v_idx)) { + cpu = v_idx; + node = cpu_to_node(cpu); + } + } + } + + /* allocate q_vector and rings */ + q_vector = kzalloc_node(size, GFP_KERNEL, node); + if (!q_vector) + q_vector = kzalloc(size, GFP_KERNEL); + if (!q_vector) + return -ENOMEM; + + /* setup affinity mask and node */ + if (cpu != -1) + cpumask_set_cpu(cpu, &q_vector->affinity_mask); + q_vector->numa_node = node; + + /* initialize CPU for DCA */ + q_vector->cpu = -1; + + /* initialize NAPI */ + netif_napi_add(adapter->netdev, &q_vector->napi, + txgbe_poll, 64); + + /* tie q_vector and adapter together */ + adapter->q_vector[v_idx] = q_vector; + q_vector->adapter = adapter; + q_vector->v_idx = v_idx; + + /* initialize work limits */ + q_vector->tx.work_limit = adapter->tx_work_limit; + q_vector->rx.work_limit = adapter->rx_work_limit; + + /* initialize pointer to rings */ + ring = q_vector->ring; + + /* intialize ITR */ + if (txr_count && !rxr_count) { + /* tx only vector */ + if (adapter->tx_itr_setting == 1) + q_vector->itr = TXGBE_12K_ITR; + else + q_vector->itr = adapter->tx_itr_setting; + } else { + /* rx or rx/tx vector */ + if (adapter->rx_itr_setting == 1) + q_vector->itr = TXGBE_20K_ITR; + else + q_vector->itr = adapter->rx_itr_setting; + } + + while (txr_count) { + /* assign generic ring traits */ + ring->dev = pci_dev_to_dev(adapter->pdev); + ring->netdev = adapter->netdev; + + /* configure backlink on ring */ + ring->q_vector = q_vector; + + /* update q_vector Tx values */ + txgbe_add_ring(ring, &q_vector->tx); + + /* apply Tx specific ring traits */ + ring->count = adapter->tx_ring_count; + if (adapter->num_vmdqs > 1) + ring->queue_index = + txr_idx % adapter->queues_per_pool; + else + ring->queue_index = txr_idx; + + /* assign ring to adapter */ + adapter->tx_ring[txr_idx] = ring; + + /* update count and index */ + txr_count--; + txr_idx += v_count; + + /* push pointer to next ring */ + ring++; + } + + while (rxr_count) { + /* assign generic ring traits */ + ring->dev = pci_dev_to_dev(adapter->pdev); + ring->netdev = adapter->netdev; + + /* configure backlink on ring */ + ring->q_vector = q_vector; + + /* update q_vector Rx values */ + txgbe_add_ring(ring, &q_vector->rx); + + /* apply Rx specific ring traits */ + ring->count = adapter->rx_ring_count; + if (adapter->num_vmdqs > 1) + ring->queue_index = + rxr_idx % adapter->queues_per_pool; + else + ring->queue_index = rxr_idx; + + /* assign ring to adapter */ + adapter->rx_ring[rxr_idx] = ring; + + /* update count and index */ + rxr_count--; + rxr_idx += v_count; + + /* push pointer to next ring */ + ring++; + } + + return 0; +} + +/** + * txgbe_free_q_vector - Free memory allocated for specific interrupt vector + * @adapter: board private structure to initialize + * @v_idx: Index of vector to be freed + * + * This function frees the memory allocated to the q_vector. In addition if + * NAPI is enabled it will delete any references to the NAPI struct prior + * to freeing the q_vector. + **/ +static void txgbe_free_q_vector(struct txgbe_adapter *adapter, int v_idx) +{ + struct txgbe_q_vector *q_vector = adapter->q_vector[v_idx]; + struct txgbe_ring *ring; + + txgbe_for_each_ring(ring, q_vector->tx) + adapter->tx_ring[ring->queue_index] = NULL; + + txgbe_for_each_ring(ring, q_vector->rx) + adapter->rx_ring[ring->queue_index] = NULL; + + adapter->q_vector[v_idx] = NULL; + netif_napi_del(&q_vector->napi); + kfree_rcu(q_vector, rcu); +} + +/** + * txgbe_alloc_q_vectors - Allocate memory for interrupt vectors + * @adapter: board private structure to initialize + * + * We allocate one q_vector per queue interrupt. If allocation fails we + * return -ENOMEM. + **/ +static int txgbe_alloc_q_vectors(struct txgbe_adapter *adapter) +{ + unsigned int q_vectors = adapter->num_q_vectors; + unsigned int rxr_remaining = adapter->num_rx_queues; + unsigned int txr_remaining = adapter->num_tx_queues; + unsigned int rxr_idx = 0, txr_idx = 0, v_idx = 0; + int err; + + if (q_vectors >= (rxr_remaining + txr_remaining)) { + for (; rxr_remaining; v_idx++) { + err = txgbe_alloc_q_vector(adapter, q_vectors, v_idx, + 0, 0, 1, rxr_idx); + if (err) + goto err_out; + + /* update counts and index */ + rxr_remaining--; + rxr_idx++; + } + } + + for (; v_idx < q_vectors; v_idx++) { + int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_idx); + int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_idx); + err = txgbe_alloc_q_vector(adapter, q_vectors, v_idx, + tqpv, txr_idx, + rqpv, rxr_idx); + + if (err) + goto err_out; + + /* update counts and index */ + rxr_remaining -= rqpv; + txr_remaining -= tqpv; + rxr_idx++; + txr_idx++; + } + + return 0; + +err_out: + adapter->num_tx_queues = 0; + adapter->num_rx_queues = 0; + adapter->num_q_vectors = 0; + + while (v_idx--) + txgbe_free_q_vector(adapter, v_idx); + + return -ENOMEM; +} + +/** + * txgbe_free_q_vectors - Free memory allocated for interrupt vectors + * @adapter: board private structure to initialize + * + * This function frees the memory allocated to the q_vectors. In addition if + * NAPI is enabled it will delete any references to the NAPI struct prior + * to freeing the q_vector. + **/ +static void txgbe_free_q_vectors(struct txgbe_adapter *adapter) +{ + int v_idx = adapter->num_q_vectors; + + adapter->num_tx_queues = 0; + adapter->num_rx_queues = 0; + adapter->num_q_vectors = 0; + + while (v_idx--) + txgbe_free_q_vector(adapter, v_idx); +} + +void txgbe_reset_interrupt_capability(struct txgbe_adapter *adapter) +{ + if (adapter->flags & TXGBE_FLAG_MSIX_ENABLED) { + adapter->flags &= ~TXGBE_FLAG_MSIX_ENABLED; + pci_disable_msix(adapter->pdev); + kfree(adapter->msix_entries); + adapter->msix_entries = NULL; + } else if (adapter->flags & TXGBE_FLAG_MSI_ENABLED) { + adapter->flags &= ~TXGBE_FLAG_MSI_ENABLED; + pci_disable_msi(adapter->pdev); + } +} + +/** + * txgbe_set_interrupt_capability - set MSI-X or MSI if supported + * @adapter: board private structure to initialize + * + * Attempt to configure the interrupts using the best available + * capabilities of the hardware and the kernel. + **/ +void txgbe_set_interrupt_capability(struct txgbe_adapter *adapter) +{ + int err; + + /* We will try to get MSI-X interrupts first */ + if (!txgbe_acquire_msix_vectors(adapter)) + return; + + /* At this point, we do not have MSI-X capabilities. We need to + * reconfigure or disable various features which require MSI-X + * capability. + */ + + /* Disable DCB unless we only have a single traffic class */ + if (netdev_get_num_tc(adapter->netdev) > 1) { + e_dev_warn("Number of DCB TCs exceeds number of available " + "queues. Disabling DCB support.\n"); + netdev_reset_tc(adapter->netdev); + } + + /* Disable VMDq support */ + e_dev_warn("Disabling VMQd support\n"); + adapter->flags &= ~TXGBE_FLAG_VMDQ_ENABLED; + + /* Disable RSS */ + e_dev_warn("Disabling RSS support\n"); + adapter->ring_feature[RING_F_RSS].limit = 1; + + /* recalculate number of queues now that many features have been + * changed or disabled. + */ + txgbe_set_num_queues(adapter); + adapter->num_q_vectors = 1; + + if (!(adapter->flags & TXGBE_FLAG_MSI_CAPABLE)) + return; + + err = pci_enable_msi(adapter->pdev); + if (err) + e_dev_warn("Failed to allocate MSI interrupt, falling back to " + "legacy. Error: %d\n", + err); + else + adapter->flags |= TXGBE_FLAG_MSI_ENABLED; +} + +/** + * txgbe_init_interrupt_scheme - Determine proper interrupt scheme + * @adapter: board private structure to initialize + * + * We determine which interrupt scheme to use based on... + * - Kernel support (MSI, MSI-X) + * - which can be user-defined (via MODULE_PARAM) + * - Hardware queue count (num_*_queues) + * - defined by miscellaneous hardware support/features (RSS, etc.) + **/ +int txgbe_init_interrupt_scheme(struct txgbe_adapter *adapter) +{ + int err; + + /* Number of supported queues */ + txgbe_set_num_queues(adapter); + + /* Set interrupt mode */ + txgbe_set_interrupt_capability(adapter); + + /* Allocate memory for queues */ + err = txgbe_alloc_q_vectors(adapter); + if (err) { + e_err(probe, "Unable to allocate memory for queue vectors\n"); + txgbe_reset_interrupt_capability(adapter); + return err; + } + + txgbe_cache_ring_register(adapter); + + set_bit(__TXGBE_DOWN, &adapter->state); + + return 0; +} + +/** + * txgbe_clear_interrupt_scheme - Clear the current interrupt scheme settings + * @adapter: board private structure to clear interrupt scheme on + * + * We go through and clear interrupt specific resources and reset the structure + * to pre-load conditions + **/ +void txgbe_clear_interrupt_scheme(struct txgbe_adapter *adapter) +{ + txgbe_free_q_vectors(adapter); + txgbe_reset_interrupt_capability(adapter); +} + +void txgbe_tx_ctxtdesc(struct txgbe_ring *tx_ring, u32 vlan_macip_lens, + u32 fcoe_sof_eof, u32 type_tucmd, u32 mss_l4len_idx) +{ + struct txgbe_tx_context_desc *context_desc; + u16 i = tx_ring->next_to_use; + + context_desc = TXGBE_TX_CTXTDESC(tx_ring, i); + + i++; + tx_ring->next_to_use = (i < tx_ring->count) ? i : 0; + + /* set bits to identify this as an advanced context descriptor */ + type_tucmd |= TXGBE_TXD_DTYP_CTXT; + context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); + context_desc->seqnum_seed = cpu_to_le32(fcoe_sof_eof); + context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd); + context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_main.c b/drivers/net/ethernet/netswift/txgbe/txgbe_main.c new file mode 100644 index 0000000000000..a4d8cc260134b --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_main.c @@ -0,0 +1,8045 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_main.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * Copyright (c)2006 - 2007 Myricom, Inc. for some LRO specific code + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/highmem.h> +#include <linux/string.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/tcp.h> +#include <linux/pkt_sched.h> +#include <linux/ipv6.h> +#include <net/checksum.h> +#include <net/ip6_checksum.h> +#include <linux/if_macvlan.h> +#include <linux/ethtool.h> +#include <linux/if_bridge.h> +#include <net/vxlan.h> + +#include "txgbe.h" +#include "txgbe_hw.h" +#include "txgbe_phy.h" +#include "txgbe_bp.h" + +char txgbe_driver_name[32] = TXGBE_NAME; +static const char txgbe_driver_string[] = + "WangXun 10 Gigabit PCI Express Network Driver"; + +#define DRV_HW_PERF + +#define FPGA + +#define DRIVERIOV + +#define BYPASS_TAG + +#define RELEASE_TAG + +#define DRV_VERSION __stringify(1.1.17oe) + +const char txgbe_driver_version[32] = DRV_VERSION; +static const char txgbe_copyright[] = + "Copyright (c) 2015 -2017 Beijing WangXun Technology Co., Ltd"; +static const char txgbe_overheat_msg[] = + "Network adapter has been stopped because it has over heated. " + "If the problem persists, restart the computer, or " + "power off the system and replace the adapter"; +static const char txgbe_underheat_msg[] = + "Network adapter has been started again since the temperature " + "has been back to normal state"; + +/* txgbe_pci_tbl - PCI Device ID Table + * + * Wildcard entries (PCI_ANY_ID) should come last + * Last entry must be all 0s + * + * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, + * Class, Class Mask, private data (not used) } + */ +static const struct pci_device_id txgbe_pci_tbl[] = { + { PCI_VDEVICE(TRUSTNETIC, TXGBE_DEV_ID_SP1000), 0}, + { PCI_VDEVICE(TRUSTNETIC, TXGBE_DEV_ID_WX1820), 0}, + /* required last entry */ + { .device = 0 } +}; +MODULE_DEVICE_TABLE(pci, txgbe_pci_tbl); + +MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, linux.nic@trustnetic.com"); +MODULE_DESCRIPTION("WangXun(R) 10 Gigabit PCI Express Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +#define DEFAULT_DEBUG_LEVEL_SHIFT 3 + +static struct workqueue_struct *txgbe_wq; + +static bool txgbe_is_sfp(struct txgbe_hw *hw); +static bool txgbe_check_cfg_remove(struct txgbe_hw *hw, struct pci_dev *pdev); +static void txgbe_clean_rx_ring(struct txgbe_ring *rx_ring); +static void txgbe_clean_tx_ring(struct txgbe_ring *tx_ring); +static void txgbe_napi_enable_all(struct txgbe_adapter *adapter); +static void txgbe_napi_disable_all(struct txgbe_adapter *adapter); + +extern txgbe_dptype txgbe_ptype_lookup[256]; + +static inline txgbe_dptype txgbe_decode_ptype(const u8 ptype) +{ + return txgbe_ptype_lookup[ptype]; +} + +static inline txgbe_dptype +decode_rx_desc_ptype(const union txgbe_rx_desc *rx_desc) +{ + return txgbe_decode_ptype(TXGBE_RXD_PKTTYPE(rx_desc)); +} + +static void txgbe_check_minimum_link(struct txgbe_adapter *adapter, + int expected_gts) +{ + struct txgbe_hw *hw = &adapter->hw; + struct pci_dev *pdev; + + /* Some devices are not connected over PCIe and thus do not negotiate + * speed. These devices do not have valid bus info, and thus any report + * we generate may not be correct. + */ + if (hw->bus.type == txgbe_bus_type_internal) + return; + + pdev = adapter->pdev; + pcie_print_link_status(pdev); +} + +/** + * txgbe_enumerate_functions - Get the number of ports this device has + * @adapter: adapter structure + * + * This function enumerates the phsyical functions co-located on a single slot, + * in order to determine how many ports a device has. This is most useful in + * determining the required GT/s of PCIe bandwidth necessary for optimal + * performance. + **/ +static inline int txgbe_enumerate_functions(struct txgbe_adapter *adapter) +{ + struct pci_dev *entry, *pdev = adapter->pdev; + int physfns = 0; + + list_for_each_entry(entry, &pdev->bus->devices, bus_list) { + /* When the devices on the bus don't all match our device ID, + * we can't reliably determine the correct number of + * functions. This can occur if a function has been direct + * attached to a virtual machine using VT-d, for example. In + * this case, simply return -1 to indicate this. + */ + if ((entry->vendor != pdev->vendor) || + (entry->device != pdev->device)) + return -1; + + physfns++; + } + + return physfns; +} + +void txgbe_service_event_schedule(struct txgbe_adapter *adapter) +{ + if (!test_bit(__TXGBE_DOWN, &adapter->state) && + !test_bit(__TXGBE_REMOVING, &adapter->state) && + !test_and_set_bit(__TXGBE_SERVICE_SCHED, &adapter->state)) + queue_work(txgbe_wq, &adapter->service_task); +} + +static void txgbe_service_event_complete(struct txgbe_adapter *adapter) +{ + BUG_ON(!test_bit(__TXGBE_SERVICE_SCHED, &adapter->state)); + + /* flush memory to make sure state is correct before next watchdog */ + smp_mb__before_atomic(); + clear_bit(__TXGBE_SERVICE_SCHED, &adapter->state); +} + +static void txgbe_remove_adapter(struct txgbe_hw *hw) +{ + struct txgbe_adapter *adapter = hw->back; + + if (!hw->hw_addr) + return; + hw->hw_addr = NULL; + e_dev_err("Adapter removed\n"); + if (test_bit(__TXGBE_SERVICE_INITED, &adapter->state)) + txgbe_service_event_schedule(adapter); +} + +static void txgbe_check_remove(struct txgbe_hw *hw, u32 reg) +{ + u32 value; + + /* The following check not only optimizes a bit by not + * performing a read on the status register when the + * register just read was a status register read that + * returned TXGBE_FAILED_READ_REG. It also blocks any + * potential recursion. + */ + if (reg == TXGBE_CFG_PORT_ST) { + txgbe_remove_adapter(hw); + return; + } + value = rd32(hw, TXGBE_CFG_PORT_ST); + if (value == TXGBE_FAILED_READ_REG) + txgbe_remove_adapter(hw); +} + +static u32 txgbe_validate_register_read(struct txgbe_hw *hw, u32 reg, bool quiet) +{ + int i; + u32 value; + u8 __iomem *reg_addr; + struct txgbe_adapter *adapter = hw->back; + + reg_addr = READ_ONCE(hw->hw_addr); + if (TXGBE_REMOVED(reg_addr)) + return TXGBE_FAILED_READ_REG; + for (i = 0; i < TXGBE_DEAD_READ_RETRIES; ++i) { + value = txgbe_rd32(reg_addr + reg); + if (value != TXGBE_DEAD_READ_REG) + break; + } + if (quiet) + return value; + if (value == TXGBE_DEAD_READ_REG) + e_err(drv, "%s: register %x read unchanged\n", __func__, reg); + else + e_warn(hw, "%s: register %x read recovered after %d retries\n", + __func__, reg, i + 1); + return value; +} + +/** + * txgbe_read_reg - Read from device register + * @hw: hw specific details + * @reg: offset of register to read + * + * Returns : value read or TXGBE_FAILED_READ_REG if removed + * + * This function is used to read device registers. It checks for device + * removal by confirming any read that returns all ones by checking the + * status register value for all ones. This function avoids reading from + * the hardware if a removal was previously detected in which case it + * returns TXGBE_FAILED_READ_REG (all ones). + */ +u32 txgbe_read_reg(struct txgbe_hw *hw, u32 reg, bool quiet) +{ + u32 value; + u8 __iomem *reg_addr; + + reg_addr = READ_ONCE(hw->hw_addr); + if (TXGBE_REMOVED(reg_addr)) + return TXGBE_FAILED_READ_REG; + value = txgbe_rd32(reg_addr + reg); + if (unlikely(value == TXGBE_FAILED_READ_REG)) + txgbe_check_remove(hw, reg); + if (unlikely(value == TXGBE_DEAD_READ_REG)) + value = txgbe_validate_register_read(hw, reg, quiet); + return value; +} + +static void txgbe_release_hw_control(struct txgbe_adapter *adapter) +{ + /* Let firmware take over control of hw */ + wr32m(&adapter->hw, TXGBE_CFG_PORT_CTL, + TXGBE_CFG_PORT_CTL_DRV_LOAD, 0); +} + +static void txgbe_get_hw_control(struct txgbe_adapter *adapter) +{ + /* Let firmware know the driver has taken over */ + wr32m(&adapter->hw, TXGBE_CFG_PORT_CTL, + TXGBE_CFG_PORT_CTL_DRV_LOAD, TXGBE_CFG_PORT_CTL_DRV_LOAD); +} + +/** + * txgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors + * @adapter: pointer to adapter struct + * @direction: 0 for Rx, 1 for Tx, -1 for other causes + * @queue: queue to map the corresponding interrupt to + * @msix_vector: the vector to map to the corresponding queue + * + **/ +static void txgbe_set_ivar(struct txgbe_adapter *adapter, s8 direction, + u16 queue, u16 msix_vector) +{ + u32 ivar, index; + struct txgbe_hw *hw = &adapter->hw; + + if (direction == -1) { + /* other causes */ + msix_vector |= TXGBE_PX_IVAR_ALLOC_VAL; + index = 0; + ivar = rd32(&adapter->hw, TXGBE_PX_MISC_IVAR); + ivar &= ~(0xFF << index); + ivar |= (msix_vector << index); + wr32(&adapter->hw, TXGBE_PX_MISC_IVAR, ivar); + } else { + /* tx or rx causes */ + msix_vector |= TXGBE_PX_IVAR_ALLOC_VAL; + index = ((16 * (queue & 1)) + (8 * direction)); + ivar = rd32(hw, TXGBE_PX_IVAR(queue >> 1)); + ivar &= ~(0xFF << index); + ivar |= (msix_vector << index); + wr32(hw, TXGBE_PX_IVAR(queue >> 1), ivar); + } +} + +void txgbe_unmap_and_free_tx_resource(struct txgbe_ring *ring, + struct txgbe_tx_buffer *tx_buffer) +{ + if (tx_buffer->skb) { + dev_kfree_skb_any(tx_buffer->skb); + if (dma_unmap_len(tx_buffer, len)) + dma_unmap_single(ring->dev, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + DMA_TO_DEVICE); + } else if (dma_unmap_len(tx_buffer, len)) { + dma_unmap_page(ring->dev, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + DMA_TO_DEVICE); + } + tx_buffer->next_to_watch = NULL; + tx_buffer->skb = NULL; + dma_unmap_len_set(tx_buffer, len, 0); + /* tx_buffer must be completely set up in the transmit path */ +} + +static void txgbe_update_xoff_received(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_hw_stats *hwstats = &adapter->stats; + u32 xoff[8] = {0}; + int tc; + int i; + + /* update stats for each tc, only valid with PFC enabled */ + for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { + u32 pxoffrxc; + wr32m(hw, TXGBE_MMC_CONTROL, TXGBE_MMC_CONTROL_UP, i<<16); + pxoffrxc = rd32(hw, TXGBE_MAC_PXOFFRXC); + hwstats->pxoffrxc[i] += pxoffrxc; + /* Get the TC for given UP */ + tc = netdev_get_prio_tc_map(adapter->netdev, i); + xoff[tc] += pxoffrxc; + } + + /* disarm tx queues that have received xoff frames */ + for (i = 0; i < adapter->num_tx_queues; i++) { + struct txgbe_ring *tx_ring = adapter->tx_ring[i]; + + tc = tx_ring->dcb_tc; + if ((tc <= 7) && (xoff[tc])) + clear_bit(__TXGBE_HANG_CHECK_ARMED, &tx_ring->state); + } +} + +static u64 txgbe_get_tx_completed(struct txgbe_ring *ring) +{ + return ring->stats.packets; +} + +static u64 txgbe_get_tx_pending(struct txgbe_ring *ring) +{ + struct txgbe_adapter *adapter; + struct txgbe_hw *hw; + u32 head, tail; + + if (ring->accel) + adapter = ring->accel->adapter; + else + adapter = ring->q_vector->adapter; + + hw = &adapter->hw; + head = rd32(hw, TXGBE_PX_TR_RP(ring->reg_idx)); + tail = rd32(hw, TXGBE_PX_TR_WP(ring->reg_idx)); + + return ((head <= tail) ? tail : tail + ring->count) - head; +} + +static inline bool txgbe_check_tx_hang(struct txgbe_ring *tx_ring) +{ + u64 tx_done = txgbe_get_tx_completed(tx_ring); + u64 tx_done_old = tx_ring->tx_stats.tx_done_old; + u64 tx_pending = txgbe_get_tx_pending(tx_ring); + + clear_check_for_tx_hang(tx_ring); + + /* + * Check for a hung queue, but be thorough. This verifies + * that a transmit has been completed since the previous + * check AND there is at least one packet pending. The + * ARMED bit is set to indicate a potential hang. The + * bit is cleared if a pause frame is received to remove + * false hang detection due to PFC or 802.3x frames. By + * requiring this to fail twice we avoid races with + * pfc clearing the ARMED bit and conditions where we + * run the check_tx_hang logic with a transmit completion + * pending but without time to complete it yet. + */ + if (tx_done_old == tx_done && tx_pending) + /* make sure it is true for two checks in a row */ + return test_and_set_bit(__TXGBE_HANG_CHECK_ARMED, + &tx_ring->state); + /* update completed stats and continue */ + tx_ring->tx_stats.tx_done_old = tx_done; + /* reset the countdown */ + clear_bit(__TXGBE_HANG_CHECK_ARMED, &tx_ring->state); + + return false; +} + +/** + * txgbe_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + **/ +static void txgbe_tx_timeout(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + bool real_tx_hang = false; + int i; + u16 value = 0; + u32 value2 = 0, value3 = 0; + u32 head, tail; + + for (i = 0; i < adapter->num_tx_queues; i++) { + struct txgbe_ring *tx_ring = adapter->tx_ring[i]; + if (check_for_tx_hang(tx_ring) && txgbe_check_tx_hang(tx_ring)) + real_tx_hang = true; + } + + pci_read_config_word(adapter->pdev, PCI_VENDOR_ID, &value); + ERROR_REPORT1(TXGBE_ERROR_POLLING, "pci vendor id is 0x%x\n", value); + + pci_read_config_word(adapter->pdev, PCI_COMMAND, &value); + ERROR_REPORT1(TXGBE_ERROR_POLLING, "pci command reg is 0x%x.\n", value); + + for (i = 0; i < adapter->num_tx_queues; i++) { + head = rd32(&adapter->hw, TXGBE_PX_TR_RP(adapter->tx_ring[i]->reg_idx)); + tail = rd32(&adapter->hw, TXGBE_PX_TR_WP(adapter->tx_ring[i]->reg_idx)); + + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "tx ring %d next_to_use is %d, next_to_clean is %d\n", + i, adapter->tx_ring[i]->next_to_use, adapter->tx_ring[i]->next_to_clean); + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "tx ring %d hw rp is 0x%x, wp is 0x%x\n", i, head, tail); + } + + value2 = rd32(&adapter->hw, TXGBE_PX_IMS(0)); + value3 = rd32(&adapter->hw, TXGBE_PX_IMS(1)); + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "PX_IMS0 value is 0x%08x, PX_IMS1 value is 0x%08x\n", value2, value3); + + if (value2 || value3) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, "clear interrupt mask.\n"); + wr32(&adapter->hw, TXGBE_PX_ICS(0), value2); + wr32(&adapter->hw, TXGBE_PX_IMC(0), value2); + wr32(&adapter->hw, TXGBE_PX_ICS(1), value3); + wr32(&adapter->hw, TXGBE_PX_IMC(1), value3); + } + + if (adapter->hw.bus.lan_id == 0) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, "tx timeout. do pcie recovery.\n"); + adapter->flags2 |= TXGBE_FLAG2_PCIE_NEED_RECOVER; + txgbe_service_event_schedule(adapter); + } else + wr32(&adapter->hw, TXGBE_MIS_PF_SM, 1); +} + +#define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) + +/** + * txgbe_clean_tx_irq - Reclaim resources after transmit completes + * @q_vector: structure containing interrupt and ring information + * @tx_ring: tx ring to clean + **/ +static bool txgbe_clean_tx_irq(struct txgbe_q_vector *q_vector, + struct txgbe_ring *tx_ring) +{ + struct txgbe_adapter *adapter = q_vector->adapter; + struct txgbe_tx_buffer *tx_buffer; + union txgbe_tx_desc *tx_desc; + unsigned int total_bytes = 0, total_packets = 0; + unsigned int budget = q_vector->tx.work_limit; + unsigned int i = tx_ring->next_to_clean; + + if (test_bit(__TXGBE_DOWN, &adapter->state)) + return true; + + tx_buffer = &tx_ring->tx_buffer_info[i]; + tx_desc = TXGBE_TX_DESC(tx_ring, i); + i -= tx_ring->count; + + do { + union txgbe_tx_desc *eop_desc = tx_buffer->next_to_watch; + + /* if next_to_watch is not set then there is no work pending */ + if (!eop_desc) + break; + + /* prevent any other reads prior to eop_desc */ + read_barrier_depends(); + + /* if DD is not set pending work has not been completed */ + if (!(eop_desc->wb.status & cpu_to_le32(TXGBE_TXD_STAT_DD))) + break; + + /* clear next_to_watch to prevent false hangs */ + tx_buffer->next_to_watch = NULL; + + /* update the statistics for this packet */ + total_bytes += tx_buffer->bytecount; + total_packets += tx_buffer->gso_segs; + + /* free the skb */ + dev_consume_skb_any(tx_buffer->skb); + + /* unmap skb header data */ + dma_unmap_single(tx_ring->dev, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + DMA_TO_DEVICE); + + /* clear tx_buffer data */ + tx_buffer->skb = NULL; + dma_unmap_len_set(tx_buffer, len, 0); + + /* unmap remaining buffers */ + while (tx_desc != eop_desc) { + tx_buffer++; + tx_desc++; + i++; + if (unlikely(!i)) { + i -= tx_ring->count; + tx_buffer = tx_ring->tx_buffer_info; + tx_desc = TXGBE_TX_DESC(tx_ring, 0); + } + + /* unmap any remaining paged data */ + if (dma_unmap_len(tx_buffer, len)) { + dma_unmap_page(tx_ring->dev, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + DMA_TO_DEVICE); + dma_unmap_len_set(tx_buffer, len, 0); + } + } + + /* move us one more past the eop_desc for start of next pkt */ + tx_buffer++; + tx_desc++; + i++; + if (unlikely(!i)) { + i -= tx_ring->count; + tx_buffer = tx_ring->tx_buffer_info; + tx_desc = TXGBE_TX_DESC(tx_ring, 0); + } + + /* issue prefetch for next Tx descriptor */ + prefetch(tx_desc); + + /* update budget accounting */ + budget--; + } while (likely(budget)); + + i += tx_ring->count; + tx_ring->next_to_clean = i; + u64_stats_update_begin(&tx_ring->syncp); + tx_ring->stats.bytes += total_bytes; + tx_ring->stats.packets += total_packets; + u64_stats_update_end(&tx_ring->syncp); + q_vector->tx.total_bytes += total_bytes; + q_vector->tx.total_packets += total_packets; + + if (check_for_tx_hang(tx_ring) && txgbe_check_tx_hang(tx_ring)) { + /* schedule immediate reset if we believe we hung */ + struct txgbe_hw *hw = &adapter->hw; + u16 value = 0; + + e_err(drv, "Detected Tx Unit Hang\n" + " Tx Queue <%d>\n" + " TDH, TDT <%x>, <%x>\n" + " next_to_use <%x>\n" + " next_to_clean <%x>\n" + "tx_buffer_info[next_to_clean]\n" + " time_stamp <%lx>\n" + " jiffies <%lx>\n", + tx_ring->queue_index, + rd32(hw, TXGBE_PX_TR_RP(tx_ring->reg_idx)), + rd32(hw, TXGBE_PX_TR_WP(tx_ring->reg_idx)), + tx_ring->next_to_use, i, + tx_ring->tx_buffer_info[i].time_stamp, jiffies); + + pci_read_config_word(adapter->pdev, PCI_VENDOR_ID, &value); + if (value == TXGBE_FAILED_READ_CFG_WORD) { + e_info(hw, "pcie link has been lost.\n"); + } + + netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); + + e_info(probe, + "tx hang %d detected on queue %d, resetting adapter\n", + adapter->tx_timeout_count + 1, tx_ring->queue_index); + + /* schedule immediate reset if we believe we hung */ + e_info(hw, "real tx hang. do pcie recovery.\n"); + adapter->flags2 |= TXGBE_FLAG2_PCIE_NEED_RECOVER; + txgbe_service_event_schedule(adapter); + + /* the adapter is about to reset, no point in enabling stuff */ + return true; + } + + netdev_tx_completed_queue(txring_txq(tx_ring), + total_packets, total_bytes); + + if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && + (txgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + + if (__netif_subqueue_stopped(tx_ring->netdev, + tx_ring->queue_index) + && !test_bit(__TXGBE_DOWN, &adapter->state)) { + netif_wake_subqueue(tx_ring->netdev, + tx_ring->queue_index); + ++tx_ring->tx_stats.restart_queue; + } + } + + return !!budget; +} + +#define TXGBE_RSS_L4_TYPES_MASK \ + ((1ul << TXGBE_RXD_RSSTYPE_IPV4_TCP) | \ + (1ul << TXGBE_RXD_RSSTYPE_IPV4_UDP) | \ + (1ul << TXGBE_RXD_RSSTYPE_IPV4_SCTP) | \ + (1ul << TXGBE_RXD_RSSTYPE_IPV6_TCP) | \ + (1ul << TXGBE_RXD_RSSTYPE_IPV6_UDP) | \ + (1ul << TXGBE_RXD_RSSTYPE_IPV6_SCTP)) + +static inline void txgbe_rx_hash(struct txgbe_ring *ring, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + u16 rss_type; + + if (!(ring->netdev->features & NETIF_F_RXHASH)) + return; + + rss_type = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & + TXGBE_RXD_RSSTYPE_MASK; + + if (!rss_type) + return; + + skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), + (TXGBE_RSS_L4_TYPES_MASK & (1ul << rss_type)) ? + PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3); +} + +/** + * txgbe_rx_checksum - indicate in skb if hw indicated a good cksum + * @ring: structure containing ring specific data + * @rx_desc: current Rx descriptor being processed + * @skb: skb currently being received and modified + **/ +static inline void txgbe_rx_checksum(struct txgbe_ring *ring, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + txgbe_dptype dptype = decode_rx_desc_ptype(rx_desc); + + skb->ip_summed = CHECKSUM_NONE; + + skb_checksum_none_assert(skb); + + /* Rx csum disabled */ + if (!(ring->netdev->features & NETIF_F_RXCSUM)) + return; + + /* if IPv4 header checksum error */ + if ((txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_IPCS) && + txgbe_test_staterr(rx_desc, TXGBE_RXD_ERR_IPE)) || + (txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_OUTERIPCS) && + txgbe_test_staterr(rx_desc, TXGBE_RXD_ERR_OUTERIPER))) { + ring->rx_stats.csum_err++; + return; + } + + /* L4 checksum offload flag must set for the below code to work */ + if (!txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_L4CS)) + return; + + /*likely incorrect csum if IPv6 Dest Header found */ + if (dptype.prot != TXGBE_DEC_PTYPE_PROT_SCTP && TXGBE_RXD_IPV6EX(rx_desc)) + return; + + /* if L4 checksum error */ + if (txgbe_test_staterr(rx_desc, TXGBE_RXD_ERR_TCPE)) { + ring->rx_stats.csum_err++; + return; + } + /* If there is an outer header present that might contain a checksum + * we need to bump the checksum level by 1 to reflect the fact that + * we are indicating we validated the inner checksum. + */ + if (dptype.etype >= TXGBE_DEC_PTYPE_ETYPE_IG) { + skb->csum_level = 1; + /* FIXME :does skb->csum_level skb->encapsulation can both set ? */ + skb->encapsulation = 1; + } + + /* It must be a TCP or UDP or SCTP packet with a valid checksum */ + skb->ip_summed = CHECKSUM_UNNECESSARY; + ring->rx_stats.csum_good_cnt++; +} + +static bool txgbe_alloc_mapped_skb(struct txgbe_ring *rx_ring, + struct txgbe_rx_buffer *bi) +{ + struct sk_buff *skb = bi->skb; + dma_addr_t dma = bi->dma; + + if (unlikely(dma)) + return true; + + if (likely(!skb)) { + skb = netdev_alloc_skb_ip_align(rx_ring->netdev, + rx_ring->rx_buf_len); + if (unlikely(!skb)) { + rx_ring->rx_stats.alloc_rx_buff_failed++; + return false; + } + + bi->skb = skb; + + } + + dma = dma_map_single(rx_ring->dev, skb->data, + rx_ring->rx_buf_len, DMA_FROM_DEVICE); + + /* + * if mapping failed free memory back to system since + * there isn't much point in holding memory we can't use + */ + if (dma_mapping_error(rx_ring->dev, dma)) { + dev_kfree_skb_any(skb); + bi->skb = NULL; + + rx_ring->rx_stats.alloc_rx_buff_failed++; + return false; + } + + bi->dma = dma; + return true; +} + +static bool txgbe_alloc_mapped_page(struct txgbe_ring *rx_ring, + struct txgbe_rx_buffer *bi) +{ + struct page *page = bi->page; + dma_addr_t dma; + + /* since we are recycling buffers we should seldom need to alloc */ + if (likely(page)) + return true; + + /* alloc new page for storage */ + page = dev_alloc_pages(txgbe_rx_pg_order(rx_ring)); + if (unlikely(!page)) { + rx_ring->rx_stats.alloc_rx_page_failed++; + return false; + } + + /* map page for use */ + dma = dma_map_page(rx_ring->dev, page, 0, + txgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); + + /* + * if mapping failed free memory back to system since + * there isn't much point in holding memory we can't use + */ + if (dma_mapping_error(rx_ring->dev, dma)) { + __free_pages(page, txgbe_rx_pg_order(rx_ring)); + + rx_ring->rx_stats.alloc_rx_page_failed++; + return false; + } + + bi->page_dma = dma; + bi->page = page; + bi->page_offset = 0; + + return true; +} + +/** + * txgbe_alloc_rx_buffers - Replace used receive buffers + * @rx_ring: ring to place buffers on + * @cleaned_count: number of buffers to replace + **/ +void txgbe_alloc_rx_buffers(struct txgbe_ring *rx_ring, u16 cleaned_count) +{ + union txgbe_rx_desc *rx_desc; + struct txgbe_rx_buffer *bi; + u16 i = rx_ring->next_to_use; + + /* nothing to do */ + if (!cleaned_count) + return; + + rx_desc = TXGBE_RX_DESC(rx_ring, i); + bi = &rx_ring->rx_buffer_info[i]; + i -= rx_ring->count; + + do { + if (ring_is_hs_enabled(rx_ring)) { + if (!txgbe_alloc_mapped_skb(rx_ring, bi)) + break; + rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); + } + + if (!txgbe_alloc_mapped_page(rx_ring, bi)) + break; + rx_desc->read.pkt_addr = + cpu_to_le64(bi->page_dma + bi->page_offset); + + rx_desc++; + bi++; + i++; + if (unlikely(!i)) { + rx_desc = TXGBE_RX_DESC(rx_ring, 0); + bi = rx_ring->rx_buffer_info; + i -= rx_ring->count; + } + + /* clear the status bits for the next_to_use descriptor */ + rx_desc->wb.upper.status_error = 0; + + cleaned_count--; + } while (cleaned_count); + + i += rx_ring->count; + + if (rx_ring->next_to_use != i) { + rx_ring->next_to_use = i; + /* update next to alloc since we have filled the ring */ + rx_ring->next_to_alloc = i; + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). + */ + wmb(); + writel(i, rx_ring->tail); + } +} + +static inline u16 txgbe_get_hlen(struct txgbe_ring *rx_ring, + union txgbe_rx_desc *rx_desc) +{ + __le16 hdr_info = rx_desc->wb.lower.lo_dword.hs_rss.hdr_info; + u16 hlen = le16_to_cpu(hdr_info) & TXGBE_RXD_HDRBUFLEN_MASK; + + UNREFERENCED_PARAMETER(rx_ring); + + if (hlen > (TXGBE_RX_HDR_SIZE << TXGBE_RXD_HDRBUFLEN_SHIFT)) + hlen = 0; + else + hlen >>= TXGBE_RXD_HDRBUFLEN_SHIFT; + + return hlen; +} + +static void txgbe_set_rsc_gso_size(struct txgbe_ring __maybe_unused *ring, + struct sk_buff *skb) +{ + u16 hdr_len = eth_get_headlen(skb->data, skb_headlen(skb)); + + /* set gso_size to avoid messing up TCP MSS */ + skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), + TXGBE_CB(skb)->append_cnt); + skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; +} + +static void txgbe_update_rsc_stats(struct txgbe_ring *rx_ring, + struct sk_buff *skb) +{ + /* if append_cnt is 0 then frame is not RSC */ + if (!TXGBE_CB(skb)->append_cnt) + return; + + rx_ring->rx_stats.rsc_count += TXGBE_CB(skb)->append_cnt; + rx_ring->rx_stats.rsc_flush++; + + txgbe_set_rsc_gso_size(rx_ring, skb); + + /* gso_size is computed using append_cnt so always clear it last */ + TXGBE_CB(skb)->append_cnt = 0; +} + +static void txgbe_rx_vlan(struct txgbe_ring *ring, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + u8 idx = 0; + u16 ethertype; + + if ((ring->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) && + txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_VP)) { + idx = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & + TXGBE_RXD_TPID_MASK) >> TXGBE_RXD_TPID_SHIFT; + ethertype = ring->q_vector->adapter->hw.tpid[idx]; + __vlan_hwaccel_put_tag(skb, + htons(ethertype), + le16_to_cpu(rx_desc->wb.upper.vlan)); + } +} + +/** + * txgbe_process_skb_fields - Populate skb header fields from Rx descriptor + * @rx_ring: rx descriptor ring packet is being transacted on + * @rx_desc: pointer to the EOP Rx descriptor + * @skb: pointer to current skb being populated + * + * This function checks the ring, descriptor, and packet information in + * order to populate the hash, checksum, VLAN, timestamp, protocol, and + * other fields within the skb. + **/ +static void txgbe_process_skb_fields(struct txgbe_ring *rx_ring, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + u32 flags = rx_ring->q_vector->adapter->flags; + + txgbe_update_rsc_stats(rx_ring, skb); + txgbe_rx_hash(rx_ring, rx_desc, skb); + txgbe_rx_checksum(rx_ring, rx_desc, skb); + + if (unlikely(flags & TXGBE_FLAG_RX_HWTSTAMP_ENABLED) && + unlikely(txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_TS))) { + txgbe_ptp_rx_hwtstamp(rx_ring->q_vector->adapter, skb); + rx_ring->last_rx_timestamp = jiffies; + } + + txgbe_rx_vlan(rx_ring, rx_desc, skb); + + skb_record_rx_queue(skb, rx_ring->queue_index); + + skb->protocol = eth_type_trans(skb, rx_ring->netdev); +} + +static void txgbe_rx_skb(struct txgbe_q_vector *q_vector, + struct sk_buff *skb) +{ + napi_gro_receive(&q_vector->napi, skb); +} + +/** + * txgbe_is_non_eop - process handling of non-EOP buffers + * @rx_ring: Rx ring being processed + * @rx_desc: Rx descriptor for current buffer + * @skb: Current socket buffer containing buffer in progress + * + * This function updates next to clean. If the buffer is an EOP buffer + * this function exits returning false, otherwise it will place the + * sk_buff in the next buffer to be chained and return true indicating + * that this is in fact a non-EOP buffer. + **/ +static bool txgbe_is_non_eop(struct txgbe_ring *rx_ring, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + struct txgbe_rx_buffer *rx_buffer = + &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; + u32 ntc = rx_ring->next_to_clean + 1; + + /* fetch, update, and store next to clean */ + ntc = (ntc < rx_ring->count) ? ntc : 0; + rx_ring->next_to_clean = ntc; + + prefetch(TXGBE_RX_DESC(rx_ring, ntc)); + + /* update RSC append count if present */ + if (ring_is_rsc_enabled(rx_ring)) { + __le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data & + cpu_to_le32(TXGBE_RXD_RSCCNT_MASK); + + if (unlikely(rsc_enabled)) { + u32 rsc_cnt = le32_to_cpu(rsc_enabled); + + rsc_cnt >>= TXGBE_RXD_RSCCNT_SHIFT; + TXGBE_CB(skb)->append_cnt += rsc_cnt - 1; + + /* update ntc based on RSC value */ + ntc = le32_to_cpu(rx_desc->wb.upper.status_error); + ntc &= TXGBE_RXD_NEXTP_MASK; + ntc >>= TXGBE_RXD_NEXTP_SHIFT; + } + } + + /* if we are the last buffer then there is nothing else to do */ + if (likely(txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_EOP))) + return false; + + /* place skb in next buffer to be received */ + if (ring_is_hs_enabled(rx_ring)) { + rx_buffer->skb = rx_ring->rx_buffer_info[ntc].skb; + rx_buffer->dma = rx_ring->rx_buffer_info[ntc].dma; + rx_ring->rx_buffer_info[ntc].dma = 0; + } + rx_ring->rx_buffer_info[ntc].skb = skb; + rx_ring->rx_stats.non_eop_descs++; + + return true; +} + +/** + * txgbe_pull_tail - txgbe specific version of skb_pull_tail + * @skb: pointer to current skb being adjusted + * + * This function is an txgbe specific version of __pskb_pull_tail. The + * main difference between this version and the original function is that + * this function can make several assumptions about the state of things + * that allow for significant optimizations versus the standard function. + * As a result we can do things like drop a frag and maintain an accurate + * truesize for the skb. + */ +static void txgbe_pull_tail(struct sk_buff *skb) +{ + skb_frag_t *frag = &skb_shinfo(skb)->frags[0]; + unsigned char *va; + unsigned int pull_len; + + /* + * it is valid to use page_address instead of kmap since we are + * working with pages allocated out of the lomem pool per + * alloc_page(GFP_ATOMIC) + */ + va = skb_frag_address(frag); + + /* + * we need the header to contain the greater of either ETH_HLEN or + * 60 bytes if the skb->len is less than 60 for skb_pad. + */ + pull_len = eth_get_headlen(va, TXGBE_RX_HDR_SIZE); + + /* align pull length to size of long to optimize memcpy performance */ + skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); + + /* update all of the pointers */ + skb_frag_size_sub(frag, pull_len); + frag->page_offset += pull_len; + skb->data_len -= pull_len; + skb->tail += pull_len; +} + +/** + * txgbe_dma_sync_frag - perform DMA sync for first frag of SKB + * @rx_ring: rx descriptor ring packet is being transacted on + * @skb: pointer to current skb being updated + * + * This function provides a basic DMA sync up for the first fragment of an + * skb. The reason for doing this is that the first fragment cannot be + * unmapped until we have reached the end of packet descriptor for a buffer + * chain. + */ +static void txgbe_dma_sync_frag(struct txgbe_ring *rx_ring, + struct sk_buff *skb) +{ + if (ring_uses_build_skb(rx_ring)) { + unsigned long offset = (unsigned long)(skb->data) & ~PAGE_MASK; + dma_sync_single_range_for_cpu(rx_ring->dev, + TXGBE_CB(skb)->dma, + offset, + skb_headlen(skb), + DMA_FROM_DEVICE); + } else { + skb_frag_t *frag = &skb_shinfo(skb)->frags[0]; + dma_sync_single_range_for_cpu(rx_ring->dev, + TXGBE_CB(skb)->dma, + frag->page_offset, + skb_frag_size(frag), + DMA_FROM_DEVICE); + } + + /* If the page was released, just unmap it. */ + if (unlikely(TXGBE_CB(skb)->page_released)) { + dma_unmap_page_attrs(rx_ring->dev, TXGBE_CB(skb)->dma, + txgbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE, + TXGBE_RX_DMA_ATTR); + } +} + +/** + * txgbe_cleanup_headers - Correct corrupted or empty headers + * @rx_ring: rx descriptor ring packet is being transacted on + * @rx_desc: pointer to the EOP Rx descriptor + * @skb: pointer to current skb being fixed + * + * Check for corrupted packet headers caused by senders on the local L2 + * embedded NIC switch not setting up their Tx Descriptors right. These + * should be very rare. + * + * Also address the case where we are pulling data in on pages only + * and as such no data is present in the skb header. + * + * In addition if skb is not at least 60 bytes we need to pad it so that + * it is large enough to qualify as a valid Ethernet frame. + * + * Returns true if an error was encountered and skb was freed. + **/ +static bool txgbe_cleanup_headers(struct txgbe_ring *rx_ring, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + struct net_device *netdev = rx_ring->netdev; + + /* verify that the packet does not have any known errors */ + if (unlikely(txgbe_test_staterr(rx_desc, + TXGBE_RXD_ERR_FRAME_ERR_MASK) && + !(netdev->features & NETIF_F_RXALL))) { + dev_kfree_skb_any(skb); + return true; + } + + /* place header in linear portion of buffer */ + if (skb_is_nonlinear(skb) && !skb_headlen(skb)) + txgbe_pull_tail(skb); + + /* if eth_skb_pad returns an error the skb was freed */ + if (eth_skb_pad(skb)) + return true; + + return false; +} + +/** + * txgbe_reuse_rx_page - page flip buffer and store it back on the ring + * @rx_ring: rx descriptor ring to store buffers on + * @old_buff: donor buffer to have page reused + * + * Synchronizes page for reuse by the adapter + **/ +static void txgbe_reuse_rx_page(struct txgbe_ring *rx_ring, + struct txgbe_rx_buffer *old_buff) +{ + struct txgbe_rx_buffer *new_buff; + u16 nta = rx_ring->next_to_alloc; + + new_buff = &rx_ring->rx_buffer_info[nta]; + + /* update, and store next to alloc */ + nta++; + rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; + + /* transfer page from old buffer to new buffer */ + new_buff->page_dma = old_buff->page_dma; + new_buff->page = old_buff->page; + new_buff->page_offset = old_buff->page_offset; + + /* sync the buffer for use by the device */ + dma_sync_single_range_for_device(rx_ring->dev, new_buff->page_dma, + new_buff->page_offset, + txgbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); +} + +static inline bool txgbe_page_is_reserved(struct page *page) +{ + return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); +} + +/** + * txgbe_add_rx_frag - Add contents of Rx buffer to sk_buff + * @rx_ring: rx descriptor ring to transact packets on + * @rx_buffer: buffer containing page to add + * @rx_desc: descriptor containing length of buffer written by hardware + * @skb: sk_buff to place the data into + * + * This function will add the data contained in rx_buffer->page to the skb. + * This is done either through a direct copy if the data in the buffer is + * less than the skb header size, otherwise it will just attach the page as + * a frag to the skb. + * + * The function will then update the page offset if necessary and return + * true if the buffer can be reused by the adapter. + **/ +static bool txgbe_add_rx_frag(struct txgbe_ring *rx_ring, + struct txgbe_rx_buffer *rx_buffer, + union txgbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + struct page *page = rx_buffer->page; + unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); +#if (PAGE_SIZE < 8192) + unsigned int truesize = txgbe_rx_bufsz(rx_ring); +#else + unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); + unsigned int last_offset = txgbe_rx_pg_size(rx_ring) - + txgbe_rx_bufsz(rx_ring); +#endif + + if ((size <= TXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb) && + !ring_is_hs_enabled(rx_ring)) { + unsigned char *va = page_address(page) + rx_buffer->page_offset; + + memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); + + /* page is not reserved, we can reuse buffer as-is */ + if (likely(!txgbe_page_is_reserved(page))) + return true; + + /* this page cannot be reused so discard it */ + __free_pages(page, txgbe_rx_pg_order(rx_ring)); + return false; + } + + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, + rx_buffer->page_offset, size, truesize); + + /* avoid re-using remote pages */ + if (unlikely(txgbe_page_is_reserved(page))) + return false; + +#if (PAGE_SIZE < 8192) + /* if we are only owner of page we can reuse it */ + if (unlikely(page_count(page) != 1)) + return false; + + /* flip page offset to other buffer */ + rx_buffer->page_offset ^= truesize; +#else + /* move offset up to the next cache line */ + rx_buffer->page_offset += truesize; + + if (rx_buffer->page_offset > last_offset) + return false; +#endif + + /* Even if we own the page, we are not allowed to use atomic_set() + * This would break get_page_unless_zero() users. + */ + page_ref_inc(page); + + return true; +} + +static struct sk_buff *txgbe_fetch_rx_buffer(struct txgbe_ring *rx_ring, + union txgbe_rx_desc *rx_desc) +{ + struct txgbe_rx_buffer *rx_buffer; + struct sk_buff *skb; + struct page *page; + + rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; + page = rx_buffer->page; + prefetchw(page); + + skb = rx_buffer->skb; + + if (likely(!skb)) { + void *page_addr = page_address(page) + + rx_buffer->page_offset; + + /* prefetch first cache line of first page */ + prefetch(page_addr); +#if L1_CACHE_BYTES < 128 + prefetch(page_addr + L1_CACHE_BYTES); +#endif + + /* allocate a skb to store the frags */ + skb = netdev_alloc_skb_ip_align(rx_ring->netdev, + TXGBE_RX_HDR_SIZE); + if (unlikely(!skb)) { + rx_ring->rx_stats.alloc_rx_buff_failed++; + return NULL; + } + + /* + * we will be copying header into skb->data in + * pskb_may_pull so it is in our interest to prefetch + * it now to avoid a possible cache miss + */ + prefetchw(skb->data); + + /* + * Delay unmapping of the first packet. It carries the + * header information, HW may still access the header + * after the writeback. Only unmap it when EOP is + * reached + */ + if (likely(txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_EOP))) + goto dma_sync; + + TXGBE_CB(skb)->dma = rx_buffer->page_dma; + } else { + if (txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_EOP)) + txgbe_dma_sync_frag(rx_ring, skb); + +dma_sync: + /* we are reusing so sync this buffer for CPU use */ + dma_sync_single_range_for_cpu(rx_ring->dev, + rx_buffer->page_dma, + rx_buffer->page_offset, + txgbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); + + rx_buffer->skb = NULL; + } + + /* pull page into skb */ + if (txgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { + /* hand second half of page back to the ring */ + txgbe_reuse_rx_page(rx_ring, rx_buffer); + } else if (TXGBE_CB(skb)->dma == rx_buffer->page_dma) { + /* the page has been released from the ring */ + TXGBE_CB(skb)->page_released = true; + } else { + /* we are not reusing the buffer so unmap it */ + dma_unmap_page(rx_ring->dev, rx_buffer->page_dma, + txgbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE); + } + + /* clear contents of buffer_info */ + rx_buffer->page = NULL; + + return skb; +} + +static struct sk_buff *txgbe_fetch_rx_buffer_hs(struct txgbe_ring *rx_ring, + union txgbe_rx_desc *rx_desc) +{ + struct txgbe_rx_buffer *rx_buffer; + struct sk_buff *skb; + struct page *page; + int hdr_len = 0; + + rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; + page = rx_buffer->page; + prefetchw(page); + + skb = rx_buffer->skb; + rx_buffer->skb = NULL; + prefetchw(skb->data); + + if (!skb_is_nonlinear(skb)) { + hdr_len = txgbe_get_hlen(rx_ring, rx_desc); + if (hdr_len > 0) { + __skb_put(skb, hdr_len); + TXGBE_CB(skb)->dma_released = true; + TXGBE_CB(skb)->dma = rx_buffer->dma; + rx_buffer->dma = 0; + } else { + dma_unmap_single(rx_ring->dev, + rx_buffer->dma, + rx_ring->rx_buf_len, + DMA_FROM_DEVICE); + rx_buffer->dma = 0; + if (likely(txgbe_test_staterr(rx_desc, + TXGBE_RXD_STAT_EOP))) + goto dma_sync; + TXGBE_CB(skb)->dma = rx_buffer->page_dma; + goto add_frag; + } + } + + if (txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_EOP)) { + if (skb_headlen(skb)) { + if (TXGBE_CB(skb)->dma_released == true) { + dma_unmap_single(rx_ring->dev, + TXGBE_CB(skb)->dma, + rx_ring->rx_buf_len, + DMA_FROM_DEVICE); + TXGBE_CB(skb)->dma = 0; + TXGBE_CB(skb)->dma_released = false; + } + } else + txgbe_dma_sync_frag(rx_ring, skb); + } + +dma_sync: + /* we are reusing so sync this buffer for CPU use */ + dma_sync_single_range_for_cpu(rx_ring->dev, + rx_buffer->page_dma, + rx_buffer->page_offset, + txgbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); +add_frag: + /* pull page into skb */ + if (txgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { + /* hand second half of page back to the ring */ + txgbe_reuse_rx_page(rx_ring, rx_buffer); + } else if (TXGBE_CB(skb)->dma == rx_buffer->page_dma) { + /* the page has been released from the ring */ + TXGBE_CB(skb)->page_released = true; + } else { + /* we are not reusing the buffer so unmap it */ + dma_unmap_page(rx_ring->dev, rx_buffer->page_dma, + txgbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE); + } + + /* clear contents of buffer_info */ + rx_buffer->page = NULL; + + return skb; +} + +/** + * txgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf + * @q_vector: structure containing interrupt and ring information + * @rx_ring: rx descriptor ring to transact packets on + * @budget: Total limit on number of packets to process + * + * This function provides a "bounce buffer" approach to Rx interrupt + * processing. The advantage to this is that on systems that have + * expensive overhead for IOMMU access this provides a means of avoiding + * it by maintaining the mapping of the page to the syste. + * + * Returns amount of work completed. + **/ +static int txgbe_clean_rx_irq(struct txgbe_q_vector *q_vector, + struct txgbe_ring *rx_ring, + int budget) +{ + unsigned int total_rx_bytes = 0, total_rx_packets = 0; + u16 cleaned_count = txgbe_desc_unused(rx_ring); + + do { + union txgbe_rx_desc *rx_desc; + struct sk_buff *skb; + + /* return some buffers to hardware, one at a time is too slow */ + if (cleaned_count >= TXGBE_RX_BUFFER_WRITE) { + txgbe_alloc_rx_buffers(rx_ring, cleaned_count); + cleaned_count = 0; + } + + rx_desc = TXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); + + if (!txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_DD)) + break; + + /* This memory barrier is needed to keep us from reading + * any other fields out of the rx_desc until we know the + * descriptor has been written back + */ + dma_rmb(); + + /* retrieve a buffer from the ring */ + if (ring_is_hs_enabled(rx_ring)) + skb = txgbe_fetch_rx_buffer_hs(rx_ring, rx_desc); + else + skb = txgbe_fetch_rx_buffer(rx_ring, rx_desc); + + /* exit if we failed to retrieve a buffer */ + if (!skb) + break; + + cleaned_count++; + + /* place incomplete frames back on ring for completion */ + if (txgbe_is_non_eop(rx_ring, rx_desc, skb)) + continue; + + /* verify the packet layout is correct */ + if (txgbe_cleanup_headers(rx_ring, rx_desc, skb)) + continue; + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += skb->len; + + /* populate checksum, timestamp, VLAN, and protocol */ + txgbe_process_skb_fields(rx_ring, rx_desc, skb); + + txgbe_rx_skb(q_vector, skb); + + /* update budget accounting */ + total_rx_packets++; + } while (likely(total_rx_packets < budget)); + + u64_stats_update_begin(&rx_ring->syncp); + rx_ring->stats.packets += total_rx_packets; + rx_ring->stats.bytes += total_rx_bytes; + u64_stats_update_end(&rx_ring->syncp); + q_vector->rx.total_packets += total_rx_packets; + q_vector->rx.total_bytes += total_rx_bytes; + + return total_rx_packets; +} + +/** + * txgbe_configure_msix - Configure MSI-X hardware + * @adapter: board private structure + * + * txgbe_configure_msix sets up the hardware to properly generate MSI-X + * interrupts. + **/ +static void txgbe_configure_msix(struct txgbe_adapter *adapter) +{ + u16 v_idx; + + /* Populate MSIX to EITR Select */ + if (adapter->num_vfs >= 32) { + u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; + wr32(&adapter->hw, TXGBE_PX_ITRSEL, eitrsel); + } else { + wr32(&adapter->hw, TXGBE_PX_ITRSEL, 0); + } + + /* + * Populate the IVAR table and set the ITR values to the + * corresponding register. + */ + for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { + struct txgbe_q_vector *q_vector = adapter->q_vector[v_idx]; + struct txgbe_ring *ring; + + txgbe_for_each_ring(ring, q_vector->rx) + txgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); + + txgbe_for_each_ring(ring, q_vector->tx) + txgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); + + txgbe_write_eitr(q_vector); + } + + txgbe_set_ivar(adapter, -1, 0, v_idx); + + wr32(&adapter->hw, TXGBE_PX_ITR(v_idx), 1950); +} + +enum latency_range { + lowest_latency = 0, + low_latency = 1, + bulk_latency = 2, + latency_invalid = 255 +}; + +/** + * txgbe_update_itr - update the dynamic ITR value based on statistics + * @q_vector: structure containing interrupt and ring information + * @ring_container: structure containing ring performance data + * + * Stores a new ITR value based on packets and byte + * counts during the last interrupt. The advantage of per interrupt + * computation is faster updates and more accurate ITR for the current + * traffic pattern. Constants in this function were computed + * based on theoretical maximum wire speed and thresholds were set based + * on testing data as well as attempting to minimize response time + * while increasing bulk throughput. + * this functionality is controlled by the InterruptThrottleRate module + * parameter (see txgbe_param.c) + **/ +static void txgbe_update_itr(struct txgbe_q_vector *q_vector, + struct txgbe_ring_container *ring_container) +{ + int bytes = ring_container->total_bytes; + int packets = ring_container->total_packets; + u32 timepassed_us; + u64 bytes_perint; + u8 itr_setting = ring_container->itr; + + if (packets == 0) + return; + + /* simple throttlerate management + * 0-10MB/s lowest (100000 ints/s) + * 10-20MB/s low (20000 ints/s) + * 20-1249MB/s bulk (12000 ints/s) + */ + /* what was last interrupt timeslice? */ + timepassed_us = q_vector->itr >> 2; + if (timepassed_us == 0) + return; + bytes_perint = bytes / timepassed_us; /* bytes/usec */ + + switch (itr_setting) { + case lowest_latency: + if (bytes_perint > 10) { + itr_setting = low_latency; + } + break; + case low_latency: + if (bytes_perint > 20) { + itr_setting = bulk_latency; + } else if (bytes_perint <= 10) { + itr_setting = lowest_latency; + } + break; + case bulk_latency: + if (bytes_perint <= 20) { + itr_setting = low_latency; + } + break; + } + + /* clear work counters since we have the values we need */ + ring_container->total_bytes = 0; + ring_container->total_packets = 0; + + /* write updated itr to ring container */ + ring_container->itr = itr_setting; +} + +/** + * txgbe_write_eitr - write EITR register in hardware specific way + * @q_vector: structure containing interrupt and ring information + * + * This function is made to be called by ethtool and by the driver + * when it needs to update EITR registers at runtime. Hardware + * specific quirks/differences are taken care of here. + */ +void txgbe_write_eitr(struct txgbe_q_vector *q_vector) +{ + struct txgbe_adapter *adapter = q_vector->adapter; + struct txgbe_hw *hw = &adapter->hw; + int v_idx = q_vector->v_idx; + u32 itr_reg = q_vector->itr & TXGBE_MAX_EITR; + + itr_reg |= TXGBE_PX_ITR_CNT_WDIS; + + wr32(hw, TXGBE_PX_ITR(v_idx), itr_reg); +} + +static void txgbe_set_itr(struct txgbe_q_vector *q_vector) +{ + u16 new_itr = q_vector->itr; + u8 current_itr; + + txgbe_update_itr(q_vector, &q_vector->tx); + txgbe_update_itr(q_vector, &q_vector->rx); + + current_itr = max(q_vector->rx.itr, q_vector->tx.itr); + + switch (current_itr) { + /* counts and packets in update_itr are dependent on these numbers */ + case lowest_latency: + new_itr = TXGBE_100K_ITR; + break; + case low_latency: + new_itr = TXGBE_20K_ITR; + break; + case bulk_latency: + new_itr = TXGBE_12K_ITR; + break; + default: + break; + } + + if (new_itr != q_vector->itr) { + /* do an exponential smoothing */ + new_itr = (10 * new_itr * q_vector->itr) / + ((9 * new_itr) + q_vector->itr); + + /* save the algorithm value here */ + q_vector->itr = new_itr; + + txgbe_write_eitr(q_vector); + } +} + +/** + * txgbe_check_overtemp_subtask - check for over temperature + * @adapter: pointer to adapter + **/ +static void txgbe_check_overtemp_subtask(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 eicr = adapter->interrupt_event; + s32 temp_state; + + if (test_bit(__TXGBE_DOWN, &adapter->state)) + return; + if (!(adapter->flags2 & TXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) + return; + if (!(adapter->flags2 & TXGBE_FLAG2_TEMP_SENSOR_EVENT)) + return; + + adapter->flags2 &= ~TXGBE_FLAG2_TEMP_SENSOR_EVENT; + + /* + * Since the warning interrupt is for both ports + * we don't have to check if: + * - This interrupt wasn't for our port. + * - We may have missed the interrupt so always have to + * check if we got a LSC + */ + if (!(eicr & TXGBE_PX_MISC_IC_OVER_HEAT)) + return; + + temp_state = TCALL(hw, phy.ops.check_overtemp); + if (!temp_state || temp_state == TXGBE_NOT_IMPLEMENTED) + return; + + if (temp_state == TXGBE_ERR_UNDERTEMP && + test_bit(__TXGBE_HANGING, &adapter->state)) { + e_crit(drv, "%s\n", txgbe_underheat_msg); + wr32m(&adapter->hw, TXGBE_RDB_PB_CTL, + TXGBE_RDB_PB_CTL_RXEN, TXGBE_RDB_PB_CTL_RXEN); + netif_carrier_on(adapter->netdev); + + clear_bit(__TXGBE_HANGING, &adapter->state); + } else if (temp_state == TXGBE_ERR_OVERTEMP && + !test_and_set_bit(__TXGBE_HANGING, &adapter->state)) { + e_crit(drv, "%s\n", txgbe_overheat_msg); + netif_carrier_off(adapter->netdev); + + wr32m(&adapter->hw, TXGBE_RDB_PB_CTL, + TXGBE_RDB_PB_CTL_RXEN, 0); + } + + adapter->interrupt_event = 0; +} + +static void txgbe_check_overtemp_event(struct txgbe_adapter *adapter, u32 eicr) +{ + if (!(adapter->flags2 & TXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) + return; + + if (!(eicr & TXGBE_PX_MISC_IC_OVER_HEAT)) + return; + + if (!test_bit(__TXGBE_DOWN, &adapter->state)) { + adapter->interrupt_event = eicr; + adapter->flags2 |= TXGBE_FLAG2_TEMP_SENSOR_EVENT; + txgbe_service_event_schedule(adapter); + } +} + +static void txgbe_check_sfp_event(struct txgbe_adapter *adapter, u32 eicr) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 eicr_mask = TXGBE_PX_MISC_IC_GPIO; + u32 reg; + + if (eicr & eicr_mask) { + if (!test_bit(__TXGBE_DOWN, &adapter->state)) { + wr32(hw, TXGBE_GPIO_INTMASK, 0xFF); + reg = rd32(hw, TXGBE_GPIO_INTSTATUS); + if (reg & TXGBE_GPIO_INTSTATUS_2) { + adapter->flags2 |= TXGBE_FLAG2_SFP_NEEDS_RESET; + wr32(hw, TXGBE_GPIO_EOI, + TXGBE_GPIO_EOI_2); + adapter->sfp_poll_time = 0; + txgbe_service_event_schedule(adapter); + } + if (reg & TXGBE_GPIO_INTSTATUS_3) { + adapter->flags |= TXGBE_FLAG_NEED_LINK_CONFIG; + wr32(hw, TXGBE_GPIO_EOI, + TXGBE_GPIO_EOI_3); + txgbe_service_event_schedule(adapter); + } + + if (reg & TXGBE_GPIO_INTSTATUS_6) { + wr32(hw, TXGBE_GPIO_EOI, + TXGBE_GPIO_EOI_6); + adapter->flags |= + TXGBE_FLAG_NEED_LINK_CONFIG; + txgbe_service_event_schedule(adapter); + } + wr32(hw, TXGBE_GPIO_INTMASK, 0x0); + } + } +} + +static void txgbe_check_lsc(struct txgbe_adapter *adapter) +{ + adapter->lsc_int++; + adapter->flags |= TXGBE_FLAG_NEED_LINK_UPDATE; + adapter->link_check_timeout = jiffies; + if (!test_bit(__TXGBE_DOWN, &adapter->state)) { + txgbe_service_event_schedule(adapter); + } +} + +/** + * txgbe_irq_enable - Enable default interrupt generation settings + * @adapter: board private structure + **/ +void txgbe_irq_enable(struct txgbe_adapter *adapter, bool queues, bool flush) +{ + u32 mask = 0; + struct txgbe_hw *hw = &adapter->hw; + u8 device_type = hw->subsystem_id & 0xF0; + + /* enable gpio interrupt */ + if (device_type != TXGBE_ID_MAC_XAUI && + device_type != TXGBE_ID_MAC_SGMII) { + mask |= TXGBE_GPIO_INTEN_2; + mask |= TXGBE_GPIO_INTEN_3; + mask |= TXGBE_GPIO_INTEN_6; + } + wr32(&adapter->hw, TXGBE_GPIO_INTEN, mask); + + if (device_type != TXGBE_ID_MAC_XAUI && + device_type != TXGBE_ID_MAC_SGMII) { + mask = TXGBE_GPIO_INTTYPE_LEVEL_2 | TXGBE_GPIO_INTTYPE_LEVEL_3 | + TXGBE_GPIO_INTTYPE_LEVEL_6; + } + wr32(&adapter->hw, TXGBE_GPIO_INTTYPE_LEVEL, mask); + + /* enable misc interrupt */ + mask = TXGBE_PX_MISC_IEN_MASK; + + if (adapter->flags2 & TXGBE_FLAG2_TEMP_SENSOR_CAPABLE) + mask |= TXGBE_PX_MISC_IEN_OVER_HEAT; + + if ((adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE) && + !(adapter->flags2 & TXGBE_FLAG2_FDIR_REQUIRES_REINIT)) + mask |= TXGBE_PX_MISC_IEN_FLOW_DIR; + + mask |= TXGBE_PX_MISC_IEN_TIMESYNC; + + wr32(&adapter->hw, TXGBE_PX_MISC_IEN, mask); + + /* unmask interrupt */ + txgbe_intr_enable(&adapter->hw, TXGBE_INTR_MISC(adapter)); + if (queues) + txgbe_intr_enable(&adapter->hw, TXGBE_INTR_QALL(adapter)); + + /* flush configuration */ + if (flush) + TXGBE_WRITE_FLUSH(&adapter->hw); +} + +static irqreturn_t txgbe_msix_other(int __always_unused irq, void *data) +{ + struct txgbe_adapter *adapter = data; + struct txgbe_hw *hw = &adapter->hw; + u32 eicr; + u32 ecc; + u32 value = 0; + u16 pci_val = 0; + + eicr = txgbe_misc_isb(adapter, TXGBE_ISB_MISC); + + if (BOND_CHECK_LINK_MODE == 1) { + if (eicr & (TXGBE_PX_MISC_IC_ETH_LKDN)) { + value = rd32(hw, 0x14404); + value = value & 0x1; + if (value == 0) { + adapter->link_up = false; + adapter->flags2 |= TXGBE_FLAG2_LINK_DOWN; + txgbe_service_event_schedule(adapter); + } + } + } else { + if (eicr & (TXGBE_PX_MISC_IC_ETH_LK | TXGBE_PX_MISC_IC_ETH_LKDN)) + txgbe_check_lsc(adapter); + } + if (eicr & TXGBE_PX_MISC_IC_ETH_AN) { + if (adapter->backplane_an == 1 && (KR_POLLING == 0)) { + value = txgbe_rd32_epcs(hw, 0x78002); + value = value & 0x4; + if (value == 0x4) { + txgbe_kr_intr_handle(adapter); + adapter->flags2 |= TXGBE_FLAG2_KR_TRAINING; + txgbe_service_event_schedule(adapter); + } + } + } + + if (eicr & TXGBE_PX_MISC_IC_PCIE_REQ_ERR) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "lan id %d,PCIe request error founded.\n", hw->bus.lan_id); + + pci_read_config_word(adapter->pdev, PCI_VENDOR_ID, &pci_val); + ERROR_REPORT1(TXGBE_ERROR_POLLING, "pci vendor id is 0x%x\n", pci_val); + + pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_val); + ERROR_REPORT1(TXGBE_ERROR_POLLING, "pci command reg is 0x%x.\n", pci_val); + + if (hw->bus.lan_id == 0) { + adapter->flags2 |= TXGBE_FLAG2_PCIE_NEED_RECOVER; + txgbe_service_event_schedule(adapter); + } else + wr32(&adapter->hw, TXGBE_MIS_PF_SM, 1); + } + + if (eicr & TXGBE_PX_MISC_IC_INT_ERR) { + e_info(link, "Received unrecoverable ECC Err," + "initiating reset.\n"); + ecc = rd32(hw, TXGBE_MIS_ST); + if (((ecc & TXGBE_MIS_ST_LAN0_ECC) && (hw->bus.lan_id == 0)) || + ((ecc & TXGBE_MIS_ST_LAN1_ECC) && (hw->bus.lan_id == 1))) + adapter->flags2 |= TXGBE_FLAG2_PF_RESET_REQUESTED; + + txgbe_service_event_schedule(adapter); + } + if (eicr & TXGBE_PX_MISC_IC_DEV_RST) { + adapter->flags2 |= TXGBE_FLAG2_RESET_INTR_RECEIVED; + txgbe_service_event_schedule(adapter); + } + if ((eicr & TXGBE_PX_MISC_IC_STALL) || + (eicr & TXGBE_PX_MISC_IC_ETH_EVENT)) { + adapter->flags2 |= TXGBE_FLAG2_PF_RESET_REQUESTED; + txgbe_service_event_schedule(adapter); + } + + /* Handle Flow Director Full threshold interrupt */ + if (eicr & TXGBE_PX_MISC_IC_FLOW_DIR) { + int reinit_count = 0; + int i; + for (i = 0; i < adapter->num_tx_queues; i++) { + struct txgbe_ring *ring = adapter->tx_ring[i]; + if (test_and_clear_bit(__TXGBE_TX_FDIR_INIT_DONE, + &ring->state)) + reinit_count++; + } + if (reinit_count) { + /* no more flow director interrupts until after init */ + wr32m(hw, TXGBE_PX_MISC_IEN, + TXGBE_PX_MISC_IEN_FLOW_DIR, 0); + adapter->flags2 |= + TXGBE_FLAG2_FDIR_REQUIRES_REINIT; + txgbe_service_event_schedule(adapter); + } + } + + txgbe_check_sfp_event(adapter, eicr); + txgbe_check_overtemp_event(adapter, eicr); + + if (unlikely(eicr & TXGBE_PX_MISC_IC_TIMESYNC)) + txgbe_ptp_check_pps_event(adapter); + + /* re-enable the original interrupt state, no lsc, no queues */ + if (!test_bit(__TXGBE_DOWN, &adapter->state)) + txgbe_irq_enable(adapter, false, false); + + return IRQ_HANDLED; +} + +static irqreturn_t txgbe_msix_clean_rings(int __always_unused irq, void *data) +{ + struct txgbe_q_vector *q_vector = data; + + /* EIAM disabled interrupts (on this vector) for us */ + + if (q_vector->rx.ring || q_vector->tx.ring) + napi_schedule_irqoff(&q_vector->napi); + + return IRQ_HANDLED; +} + +/** + * txgbe_poll - NAPI polling RX/TX cleanup routine + * @napi: napi struct with our devices info in it + * @budget: amount of work driver is allowed to do this pass, in packets + * + * This function will clean all queues associated with a q_vector. + **/ +int txgbe_poll(struct napi_struct *napi, int budget) +{ + struct txgbe_q_vector *q_vector = + container_of(napi, struct txgbe_q_vector, napi); + struct txgbe_adapter *adapter = q_vector->adapter; + struct txgbe_ring *ring; + int per_ring_budget; + bool clean_complete = true; + + txgbe_for_each_ring(ring, q_vector->tx) { + if (!txgbe_clean_tx_irq(q_vector, ring)) + clean_complete = false; + } + + /* Exit if we are called by netpoll */ + if (budget <= 0) + return budget; + + /* attempt to distribute budget to each queue fairly, but don't allow + * the budget to go below 1 because we'll exit polling */ + if (q_vector->rx.count > 1) + per_ring_budget = max(budget/q_vector->rx.count, 1); + else + per_ring_budget = budget; + + txgbe_for_each_ring(ring, q_vector->rx) { + int cleaned = txgbe_clean_rx_irq(q_vector, ring, + per_ring_budget); + + if (cleaned >= per_ring_budget) + clean_complete = false; + } + + /* If all work not completed, return budget and keep polling */ + if (!clean_complete) + return budget; + + /* all work done, exit the polling mode */ + napi_complete(napi); + if (adapter->rx_itr_setting == 1) + txgbe_set_itr(q_vector); + if (!test_bit(__TXGBE_DOWN, &adapter->state)) + txgbe_intr_enable(&adapter->hw, + TXGBE_INTR_Q(q_vector->v_idx)); + + return 0; +} + +/** + * txgbe_request_msix_irqs - Initialize MSI-X interrupts + * @adapter: board private structure + * + * txgbe_request_msix_irqs allocates MSI-X vectors and requests + * interrupts from the kernel. + **/ +static int txgbe_request_msix_irqs(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int vector, err; + int ri = 0, ti = 0; + + for (vector = 0; vector < adapter->num_q_vectors; vector++) { + struct txgbe_q_vector *q_vector = adapter->q_vector[vector]; + struct msix_entry *entry = &adapter->msix_entries[vector]; + + if (q_vector->tx.ring && q_vector->rx.ring) { + snprintf(q_vector->name, sizeof(q_vector->name) - 1, + "%s-TxRx-%d", netdev->name, ri++); + ti++; + } else if (q_vector->rx.ring) { + snprintf(q_vector->name, sizeof(q_vector->name) - 1, + "%s-rx-%d", netdev->name, ri++); + } else if (q_vector->tx.ring) { + snprintf(q_vector->name, sizeof(q_vector->name) - 1, + "%s-tx-%d", netdev->name, ti++); + } else { + /* skip this unused q_vector */ + continue; + } + err = request_irq(entry->vector, &txgbe_msix_clean_rings, 0, + q_vector->name, q_vector); + if (err) { + e_err(probe, "request_irq failed for MSIX interrupt" + " '%s' Error: %d\n", q_vector->name, err); + goto free_queue_irqs; + } + + /* If Flow Director is enabled, set interrupt affinity */ + if (adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE) { + /* assign the mask for this irq */ + irq_set_affinity_hint(entry->vector, + &q_vector->affinity_mask); + } + } + + err = request_irq(adapter->msix_entries[vector].vector, + txgbe_msix_other, 0, netdev->name, adapter); + if (err) { + e_err(probe, "request_irq for msix_other failed: %d\n", err); + goto free_queue_irqs; + } + + return 0; + +free_queue_irqs: + while (vector) { + vector--; + irq_set_affinity_hint(adapter->msix_entries[vector].vector, + NULL); + free_irq(adapter->msix_entries[vector].vector, + adapter->q_vector[vector]); + } + adapter->flags &= ~TXGBE_FLAG_MSIX_ENABLED; + pci_disable_msix(adapter->pdev); + kfree(adapter->msix_entries); + adapter->msix_entries = NULL; + return err; +} + +/** + * txgbe_intr - legacy mode Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ +static irqreturn_t txgbe_intr(int __always_unused irq, void *data) +{ + struct txgbe_adapter *adapter = data; + struct txgbe_q_vector *q_vector = adapter->q_vector[0]; + struct txgbe_hw *hw = &adapter->hw; + u32 eicr; + u32 eicr_misc; + u32 value ; + + eicr = txgbe_misc_isb(adapter, TXGBE_ISB_VEC0); + if (!eicr) { + /* + * shared interrupt alert! + * the interrupt that we masked before the EICR read. + */ + if (!test_bit(__TXGBE_DOWN, &adapter->state)) + txgbe_irq_enable(adapter, true, true); + return IRQ_NONE; /* Not our interrupt */ + } + adapter->isb_mem[TXGBE_ISB_VEC0] = 0; + if (!(adapter->flags & TXGBE_FLAG_MSI_ENABLED)) + wr32(&(adapter->hw), TXGBE_PX_INTA, 1); + + eicr_misc = txgbe_misc_isb(adapter, TXGBE_ISB_MISC); + if (eicr_misc & (TXGBE_PX_MISC_IC_ETH_LK | TXGBE_PX_MISC_IC_ETH_LKDN)) + txgbe_check_lsc(adapter); + + if (eicr_misc & TXGBE_PX_MISC_IC_ETH_AN) { + if (adapter->backplane_an == 1 && (KR_POLLING == 0)) { + value = txgbe_rd32_epcs(hw, 0x78002); + value = value & 0x4; + if (value == 0x4) { + txgbe_kr_intr_handle(adapter); + adapter->flags2 |= TXGBE_FLAG2_KR_TRAINING; + txgbe_service_event_schedule(adapter); + } + } + } + + if (eicr_misc & TXGBE_PX_MISC_IC_INT_ERR) { + e_info(link, "Received unrecoverable ECC Err," + "initiating reset.\n"); + adapter->flags2 |= TXGBE_FLAG2_GLOBAL_RESET_REQUESTED; + txgbe_service_event_schedule(adapter); + } + + if (eicr_misc & TXGBE_PX_MISC_IC_DEV_RST) { + adapter->flags2 |= TXGBE_FLAG2_RESET_INTR_RECEIVED; + txgbe_service_event_schedule(adapter); + } + txgbe_check_sfp_event(adapter, eicr_misc); + txgbe_check_overtemp_event(adapter, eicr_misc); + + if (unlikely(eicr_misc & TXGBE_PX_MISC_IC_TIMESYNC)) + txgbe_ptp_check_pps_event(adapter); + + adapter->isb_mem[TXGBE_ISB_MISC] = 0; + /* would disable interrupts here but it is auto disabled */ + napi_schedule_irqoff(&q_vector->napi); + + /* + * re-enable link(maybe) and non-queue interrupts, no flush. + * txgbe_poll will re-enable the queue interrupts + */ + if (!test_bit(__TXGBE_DOWN, &adapter->state)) + txgbe_irq_enable(adapter, false, false); + + return IRQ_HANDLED; +} + +/** + * txgbe_request_irq - initialize interrupts + * @adapter: board private structure + * + * Attempts to configure interrupts using the best available + * capabilities of the hardware and kernel. + **/ +static int txgbe_request_irq(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int err; + + if (adapter->flags & TXGBE_FLAG_MSIX_ENABLED) + err = txgbe_request_msix_irqs(adapter); + else if (adapter->flags & TXGBE_FLAG_MSI_ENABLED) + err = request_irq(adapter->pdev->irq, &txgbe_intr, 0, + netdev->name, adapter); + else + err = request_irq(adapter->pdev->irq, &txgbe_intr, IRQF_SHARED, + netdev->name, adapter); + + if (err) + e_err(probe, "request_irq failed, Error %d\n", err); + + return err; +} + +static void txgbe_free_irq(struct txgbe_adapter *adapter) +{ + int vector; + + if (!(adapter->flags & TXGBE_FLAG_MSIX_ENABLED)) { + free_irq(adapter->pdev->irq, adapter); + return; + } + + for (vector = 0; vector < adapter->num_q_vectors; vector++) { + struct txgbe_q_vector *q_vector = adapter->q_vector[vector]; + struct msix_entry *entry = &adapter->msix_entries[vector]; + + /* free only the irqs that were actually requested */ + if (!q_vector->rx.ring && !q_vector->tx.ring) + continue; + + /* clear the affinity_mask in the IRQ descriptor */ + irq_set_affinity_hint(entry->vector, NULL); + free_irq(entry->vector, q_vector); + } + + free_irq(adapter->msix_entries[vector++].vector, adapter); +} + +/** + * txgbe_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ +void txgbe_irq_disable(struct txgbe_adapter *adapter) +{ + wr32(&adapter->hw, TXGBE_PX_MISC_IEN, 0); + txgbe_intr_disable(&adapter->hw, TXGBE_INTR_ALL); + + TXGBE_WRITE_FLUSH(&adapter->hw); + if (adapter->flags & TXGBE_FLAG_MSIX_ENABLED) { + int vector; + + for (vector = 0; vector < adapter->num_q_vectors; vector++) + synchronize_irq(adapter->msix_entries[vector].vector); + + synchronize_irq(adapter->msix_entries[vector++].vector); + } else { + synchronize_irq(adapter->pdev->irq); + } +} + +/** + * txgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts + * + **/ +static void txgbe_configure_msi_and_legacy(struct txgbe_adapter *adapter) +{ + struct txgbe_q_vector *q_vector = adapter->q_vector[0]; + struct txgbe_ring *ring; + + txgbe_write_eitr(q_vector); + + txgbe_for_each_ring(ring, q_vector->rx) + txgbe_set_ivar(adapter, 0, ring->reg_idx, 0); + + txgbe_for_each_ring(ring, q_vector->tx) + txgbe_set_ivar(adapter, 1, ring->reg_idx, 0); + + txgbe_set_ivar(adapter, -1, 0, 1); + + e_info(hw, "Legacy interrupt IVAR setup done\n"); +} + +/** + * txgbe_configure_tx_ring - Configure Tx ring after Reset + * @adapter: board private structure + * @ring: structure containing ring specific data + * + * Configure the Tx descriptor ring after a reset. + **/ +void txgbe_configure_tx_ring(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u64 tdba = ring->dma; + int wait_loop = 10; + u32 txdctl = TXGBE_PX_TR_CFG_ENABLE; + u8 reg_idx = ring->reg_idx; + + /* disable queue to avoid issues while updating state */ + wr32(hw, TXGBE_PX_TR_CFG(reg_idx), TXGBE_PX_TR_CFG_SWFLSH); + TXGBE_WRITE_FLUSH(hw); + + wr32(hw, TXGBE_PX_TR_BAL(reg_idx), tdba & DMA_BIT_MASK(32)); + wr32(hw, TXGBE_PX_TR_BAH(reg_idx), tdba >> 32); + + /* reset head and tail pointers */ + wr32(hw, TXGBE_PX_TR_RP(reg_idx), 0); + wr32(hw, TXGBE_PX_TR_WP(reg_idx), 0); + ring->tail = adapter->io_addr + TXGBE_PX_TR_WP(reg_idx); + + /* reset ntu and ntc to place SW in sync with hardwdare */ + ring->next_to_clean = 0; + ring->next_to_use = 0; + + txdctl |= TXGBE_RING_SIZE(ring) << TXGBE_PX_TR_CFG_TR_SIZE_SHIFT; + + /* + * set WTHRESH to encourage burst writeback, it should not be set + * higher than 1 when: + * - ITR is 0 as it could cause false TX hangs + * - ITR is set to > 100k int/sec and BQL is enabled + * + * In order to avoid issues WTHRESH + PTHRESH should always be equal + * to or less than the number of on chip descriptors, which is + * currently 40. + */ + + txdctl |= 0x20 << TXGBE_PX_TR_CFG_WTHRESH_SHIFT; + + /* reinitialize flowdirector state */ + if (adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE) { + ring->atr_sample_rate = adapter->atr_sample_rate; + ring->atr_count = 0; + set_bit(__TXGBE_TX_FDIR_INIT_DONE, &ring->state); + } else { + ring->atr_sample_rate = 0; + } + + /* initialize XPS */ + if (!test_and_set_bit(__TXGBE_TX_XPS_INIT_DONE, &ring->state)) { + struct txgbe_q_vector *q_vector = ring->q_vector; + + if (q_vector) + netif_set_xps_queue(adapter->netdev, + &q_vector->affinity_mask, + ring->queue_index); + } + + clear_bit(__TXGBE_HANG_CHECK_ARMED, &ring->state); + + /* enable queue */ + wr32(hw, TXGBE_PX_TR_CFG(reg_idx), txdctl); + + + /* poll to verify queue is enabled */ + do { + msleep(1); + txdctl = rd32(hw, TXGBE_PX_TR_CFG(reg_idx)); + } while (--wait_loop && !(txdctl & TXGBE_PX_TR_CFG_ENABLE)); + if (!wait_loop) + e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); +} + +/** + * txgbe_configure_tx - Configure Transmit Unit after Reset + * @adapter: board private structure + * + * Configure the Tx unit of the MAC after a reset. + **/ +static void txgbe_configure_tx(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 i; + + /* TDM_CTL.TE must be before Tx queues are enabled */ + wr32m(hw, TXGBE_TDM_CTL, + TXGBE_TDM_CTL_TE, TXGBE_TDM_CTL_TE); + + /* Setup the HW Tx Head and Tail descriptor pointers */ + for (i = 0; i < adapter->num_tx_queues; i++) + txgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); + + wr32m(hw, TXGBE_TSC_BUF_AE, 0x3FF, 0x10); + /* enable mac transmitter */ + wr32m(hw, TXGBE_MAC_TX_CFG, + TXGBE_MAC_TX_CFG_TE, TXGBE_MAC_TX_CFG_TE); +} + +static void txgbe_enable_rx_drop(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u16 reg_idx = ring->reg_idx; + + u32 srrctl = rd32(hw, TXGBE_PX_RR_CFG(reg_idx)); + + srrctl |= TXGBE_PX_RR_CFG_DROP_EN; + + wr32(hw, TXGBE_PX_RR_CFG(reg_idx), srrctl); +} + +static void txgbe_disable_rx_drop(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u16 reg_idx = ring->reg_idx; + + u32 srrctl = rd32(hw, TXGBE_PX_RR_CFG(reg_idx)); + + srrctl &= ~TXGBE_PX_RR_CFG_DROP_EN; + + wr32(hw, TXGBE_PX_RR_CFG(reg_idx), srrctl); +} + +void txgbe_set_rx_drop_en(struct txgbe_adapter *adapter) +{ + int i; + + /* + * We should set the drop enable bit if: + * SR-IOV is enabled + * or + * Number of Rx queues > 1 and flow control is disabled + * + * This allows us to avoid head of line blocking for security + * and performance reasons. + */ + if (adapter->num_vfs || (adapter->num_rx_queues > 1 && + !(adapter->hw.fc.current_mode & txgbe_fc_tx_pause))) { + for (i = 0; i < adapter->num_rx_queues; i++) + txgbe_enable_rx_drop(adapter, adapter->rx_ring[i]); + } else { + for (i = 0; i < adapter->num_rx_queues; i++) + txgbe_disable_rx_drop(adapter, adapter->rx_ring[i]); + } +} + +static void txgbe_configure_srrctl(struct txgbe_adapter *adapter, + struct txgbe_ring *rx_ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 srrctl; + u16 reg_idx = rx_ring->reg_idx; + + srrctl = rd32m(hw, TXGBE_PX_RR_CFG(reg_idx), + ~(TXGBE_PX_RR_CFG_RR_HDR_SZ | + TXGBE_PX_RR_CFG_RR_BUF_SZ | + TXGBE_PX_RR_CFG_SPLIT_MODE)); + /* configure header buffer length, needed for RSC */ + srrctl |= TXGBE_RX_HDR_SIZE << TXGBE_PX_RR_CFG_BSIZEHDRSIZE_SHIFT; + + /* configure the packet buffer length */ + srrctl |= txgbe_rx_bufsz(rx_ring) >> TXGBE_PX_RR_CFG_BSIZEPKT_SHIFT; + if (ring_is_hs_enabled(rx_ring)) + srrctl |= TXGBE_PX_RR_CFG_SPLIT_MODE; + + wr32(hw, TXGBE_PX_RR_CFG(reg_idx), srrctl); +} + +/** + * Return a number of entries in the RSS indirection table + * + * @adapter: device handle + * + */ +u32 txgbe_rss_indir_tbl_entries(struct txgbe_adapter *adapter) +{ + return 128; +} + +/** + * Write the RETA table to HW + * + * @adapter: device handle + * + * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW. + */ +void txgbe_store_reta(struct txgbe_adapter *adapter) +{ + u32 i, reta_entries = txgbe_rss_indir_tbl_entries(adapter); + struct txgbe_hw *hw = &adapter->hw; + u32 reta = 0; + u8 *indir_tbl = adapter->rss_indir_tbl; + + /* Fill out the redirection table as follows: + * - 8 bit wide entries containing 4 bit RSS index + */ + + /* Write redirection table to HW */ + for (i = 0; i < reta_entries; i++) { + reta |= indir_tbl[i] << (i & 0x3) * 8; + if ((i & 3) == 3) { + wr32(hw, TXGBE_RDB_RSSTBL(i >> 2), reta); + reta = 0; + } + } +} + +/** + * Write the RETA table to HW (for devices in SRIOV mode) + * + * @adapter: device handle + * + * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW. + */ +//static void txgbe_store_vfreta(struct txgbe_adapter *adapter) + +static void txgbe_setup_reta(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 i, j; + u32 reta_entries = txgbe_rss_indir_tbl_entries(adapter); + u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; + + /* + * Program table for at least 4 queues w/ SR-IOV so that VFs can + * make full use of any rings they may have. We will use the + * PSRTYPE register to control how many rings we use within the PF. + */ + if ((adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) + rss_i = 2; + + /* Fill out hash function seeds */ + for (i = 0; i < 10; i++) + wr32(hw, TXGBE_RDB_RSSRK(i), adapter->rss_key[i]); + + /* Fill out redirection table */ + memset(adapter->rss_indir_tbl, 0, sizeof(adapter->rss_indir_tbl)); + + for (i = 0, j = 0; i < reta_entries; i++, j++) { + if (j == rss_i) + j = 0; + + adapter->rss_indir_tbl[i] = j; + } + + txgbe_store_reta(adapter); +} + +static void txgbe_setup_mrqc(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 rss_field = 0; + + /* VT, DCB and RSS do not coexist at the same time */ + if (adapter->flags & TXGBE_FLAG_VMDQ_ENABLED && + adapter->flags & TXGBE_FLAG_DCB_ENABLED) + return; + + /* Disable indicating checksum in descriptor, enables RSS hash */ + wr32m(hw, TXGBE_PSR_CTL, + TXGBE_PSR_CTL_PCSD, TXGBE_PSR_CTL_PCSD); + + /* Perform hash on these packet types */ + rss_field = TXGBE_RDB_RA_CTL_RSS_IPV4 | + TXGBE_RDB_RA_CTL_RSS_IPV4_TCP | + TXGBE_RDB_RA_CTL_RSS_IPV6 | + TXGBE_RDB_RA_CTL_RSS_IPV6_TCP; + + if (adapter->flags2 & TXGBE_FLAG2_RSS_FIELD_IPV4_UDP) + rss_field |= TXGBE_RDB_RA_CTL_RSS_IPV4_UDP; + if (adapter->flags2 & TXGBE_FLAG2_RSS_FIELD_IPV6_UDP) + rss_field |= TXGBE_RDB_RA_CTL_RSS_IPV6_UDP; + + netdev_rss_key_fill(adapter->rss_key, sizeof(adapter->rss_key)); + + if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) { + /*wait to fix txgbe_setup_vfreta(adapter);*/ + txgbe_setup_reta(adapter); + } else { + txgbe_setup_reta(adapter); + } + + if (adapter->flags2 & TXGBE_FLAG2_RSS_ENABLED) + rss_field |= TXGBE_RDB_RA_CTL_RSS_EN; + + wr32(hw, TXGBE_RDB_RA_CTL, rss_field); +} + +/** + * txgbe_clear_rscctl - disable RSC for the indicated ring + * @adapter: address of board private structure + * @ring: structure containing ring specific data + **/ +void txgbe_clear_rscctl(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u8 reg_idx = ring->reg_idx; + + wr32m(hw, TXGBE_PX_RR_CFG(reg_idx), + TXGBE_PX_RR_CFG_RSC, 0); + + clear_ring_rsc_enabled(ring); +} + +/** + * txgbe_configure_rscctl - enable RSC for the indicated ring + * @adapter: address of board private structure + * @ring: structure containing ring specific data + **/ +void txgbe_configure_rscctl(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 rscctrl; + u8 reg_idx = ring->reg_idx; + + if (!ring_is_rsc_enabled(ring)) + return; + + rscctrl = rd32(hw, TXGBE_PX_RR_CFG(reg_idx)); + rscctrl |= TXGBE_PX_RR_CFG_RSC; + /* + * we must limit the number of descriptors so that the + * total size of max desc * buf_len is not greater + * than 65536 + */ +#if (MAX_SKB_FRAGS >= 16) + rscctrl |= TXGBE_PX_RR_CFG_MAX_RSCBUF_16; +#elif (MAX_SKB_FRAGS >= 8) + rscctrl |= TXGBE_PX_RR_CFG_MAX_RSCBUF_8; +#elif (MAX_SKB_FRAGS >= 4) + rscctrl |= TXGBE_PX_RR_CFG_MAX_RSCBUF_4; +#else + rscctrl |= TXGBE_PX_RR_CFG_MAX_RSCBUF_1; +#endif + wr32(hw, TXGBE_PX_RR_CFG(reg_idx), rscctrl); +} + +static void txgbe_rx_desc_queue_enable(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + int wait_loop = TXGBE_MAX_RX_DESC_POLL; + u32 rxdctl; + u8 reg_idx = ring->reg_idx; + + if (TXGBE_REMOVED(hw->hw_addr)) + return; + + do { + msleep(1); + rxdctl = rd32(hw, TXGBE_PX_RR_CFG(reg_idx)); + } while (--wait_loop && !(rxdctl & TXGBE_PX_RR_CFG_RR_EN)); + + if (!wait_loop) { + e_err(drv, "RXDCTL.ENABLE on Rx queue %d " + "not set within the polling period\n", reg_idx); + } +} + +/* disable the specified tx ring/queue */ +void txgbe_disable_tx_queue(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + int wait_loop = TXGBE_MAX_RX_DESC_POLL; + u32 rxdctl, reg_offset, enable_mask; + u8 reg_idx = ring->reg_idx; + + if (TXGBE_REMOVED(hw->hw_addr)) + return; + + reg_offset = TXGBE_PX_TR_CFG(reg_idx); + enable_mask = TXGBE_PX_TR_CFG_ENABLE; + + /* write value back with TDCFG.ENABLE bit cleared */ + wr32m(hw, reg_offset, enable_mask, 0); + + /* the hardware may take up to 100us to really disable the tx queue */ + do { + udelay(10); + rxdctl = rd32(hw, reg_offset); + } while (--wait_loop && (rxdctl & enable_mask)); + + if (!wait_loop) { + e_err(drv, "TDCFG.ENABLE on Tx queue %d not cleared within " + "the polling period\n", reg_idx); + } +} + +/* disable the specified rx ring/queue */ +void txgbe_disable_rx_queue(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + int wait_loop = TXGBE_MAX_RX_DESC_POLL; + u32 rxdctl; + u8 reg_idx = ring->reg_idx; + + if (TXGBE_REMOVED(hw->hw_addr)) + return; + + /* write value back with RXDCTL.ENABLE bit cleared */ + wr32m(hw, TXGBE_PX_RR_CFG(reg_idx), + TXGBE_PX_RR_CFG_RR_EN, 0); + + /* the hardware may take up to 100us to really disable the rx queue */ + do { + udelay(10); + rxdctl = rd32(hw, TXGBE_PX_RR_CFG(reg_idx)); + } while (--wait_loop && (rxdctl & TXGBE_PX_RR_CFG_RR_EN)); + + if (!wait_loop) { + e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " + "the polling period\n", reg_idx); + } +} + +void txgbe_configure_rx_ring(struct txgbe_adapter *adapter, + struct txgbe_ring *ring) +{ + struct txgbe_hw *hw = &adapter->hw; + u64 rdba = ring->dma; + u32 rxdctl; + u16 reg_idx = ring->reg_idx; + + /* disable queue to avoid issues while updating state */ + rxdctl = rd32(hw, TXGBE_PX_RR_CFG(reg_idx)); + txgbe_disable_rx_queue(adapter, ring); + + wr32(hw, TXGBE_PX_RR_BAL(reg_idx), rdba & DMA_BIT_MASK(32)); + wr32(hw, TXGBE_PX_RR_BAH(reg_idx), rdba >> 32); + + if (ring->count == TXGBE_MAX_RXD) + rxdctl |= 0 << TXGBE_PX_RR_CFG_RR_SIZE_SHIFT; + else + rxdctl |= (ring->count / 128) << TXGBE_PX_RR_CFG_RR_SIZE_SHIFT; + + rxdctl |= 0x1 << TXGBE_PX_RR_CFG_RR_THER_SHIFT; + wr32(hw, TXGBE_PX_RR_CFG(reg_idx), rxdctl); + + /* reset head and tail pointers */ + wr32(hw, TXGBE_PX_RR_RP(reg_idx), 0); + wr32(hw, TXGBE_PX_RR_WP(reg_idx), 0); + ring->tail = adapter->io_addr + TXGBE_PX_RR_WP(reg_idx); + + /* reset ntu and ntc to place SW in sync with hardwdare */ + ring->next_to_clean = 0; + ring->next_to_use = 0; + ring->next_to_alloc = 0; + + txgbe_configure_srrctl(adapter, ring); + /* In ESX, RSCCTL configuration is done by on demand */ + txgbe_configure_rscctl(adapter, ring); + + /* enable receive descriptor ring */ + wr32m(hw, TXGBE_PX_RR_CFG(reg_idx), + TXGBE_PX_RR_CFG_RR_EN, TXGBE_PX_RR_CFG_RR_EN); + + txgbe_rx_desc_queue_enable(adapter, ring); + txgbe_alloc_rx_buffers(ring, txgbe_desc_unused(ring)); +} + +static void txgbe_setup_psrtype(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int rss_i = adapter->ring_feature[RING_F_RSS].indices; + int pool; + + /* PSRTYPE must be initialized in adapters */ + u32 psrtype = TXGBE_RDB_PL_CFG_L4HDR | + TXGBE_RDB_PL_CFG_L3HDR | + TXGBE_RDB_PL_CFG_L2HDR | + TXGBE_RDB_PL_CFG_TUN_OUTER_L2HDR | + TXGBE_RDB_PL_CFG_TUN_TUNHDR; + + if (rss_i > 3) + psrtype |= 2 << 29; + else if (rss_i > 1) + psrtype |= 1 << 29; + + for_each_set_bit(pool, &adapter->fwd_bitmask, TXGBE_MAX_MACVLANS) + wr32(hw, TXGBE_RDB_PL_CFG(VMDQ_P(pool)), psrtype); +} + +/** + * txgbe_configure_bridge_mode - common settings for configuring bridge mode + * @adapter - the private structure + * + * This function's purpose is to remove code duplication and configure some + * settings require to switch bridge modes. + **/ +static void txgbe_configure_bridge_mode(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + unsigned int p; + + if (adapter->flags & TXGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE) { + /* disable Tx loopback, rely on switch hairpin mode */ + wr32m(hw, TXGBE_PSR_CTL, + TXGBE_PSR_CTL_SW_EN, 0); + + /* enable Rx source address pruning. Note, this requires + * replication to be enabled or else it does nothing. + */ + for (p = 0; p < adapter->num_vfs; p++) { + TCALL(hw, mac.ops.set_source_address_pruning, true, p); + } + + for_each_set_bit(p, &adapter->fwd_bitmask, TXGBE_MAX_MACVLANS) { + TCALL(hw, mac.ops.set_source_address_pruning, true, VMDQ_P(p)); + } + } else { + /* enable Tx loopback for internal VF/PF communication */ + wr32m(hw, TXGBE_PSR_CTL, + TXGBE_PSR_CTL_SW_EN, TXGBE_PSR_CTL_SW_EN); + + /* disable Rx source address pruning, since we don't expect to + * be receiving external loopback of our transmitted frames. + */ + for (p = 0; p < adapter->num_vfs; p++) { + TCALL(hw, mac.ops.set_source_address_pruning, false, p); + } + + for_each_set_bit(p, &adapter->fwd_bitmask, TXGBE_MAX_MACVLANS) { + TCALL(hw, mac.ops.set_source_address_pruning, false, VMDQ_P(p)); + } + } +} + +static void txgbe_configure_virtualization(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 reg_offset, vf_shift; + u32 i; + + if (!(adapter->flags & TXGBE_FLAG_VMDQ_ENABLED)) + return; + + wr32m(hw, TXGBE_PSR_VM_CTL, + TXGBE_PSR_VM_CTL_POOL_MASK | + TXGBE_PSR_VM_CTL_REPLEN, + VMDQ_P(0) << TXGBE_PSR_VM_CTL_POOL_SHIFT | + TXGBE_PSR_VM_CTL_REPLEN); + + for_each_set_bit(i, &adapter->fwd_bitmask, TXGBE_MAX_MACVLANS) { + /* accept untagged packets until a vlan tag is + * specifically set for the VMDQ queue/pool + */ + wr32m(hw, TXGBE_PSR_VM_L2CTL(i), + TXGBE_PSR_VM_L2CTL_AUPE, TXGBE_PSR_VM_L2CTL_AUPE); + } + + vf_shift = VMDQ_P(0) % 32; + reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0; + + /* Enable only the PF pools for Tx/Rx */ + wr32(hw, TXGBE_RDM_VF_RE(reg_offset), (~0) << vf_shift); + wr32(hw, TXGBE_RDM_VF_RE(reg_offset ^ 1), reg_offset - 1); + wr32(hw, TXGBE_TDM_VF_TE(reg_offset), (~0) << vf_shift); + wr32(hw, TXGBE_TDM_VF_TE(reg_offset ^ 1), reg_offset - 1); + + if (!(adapter->flags & TXGBE_FLAG_SRIOV_ENABLED)) + return; + + /* configure default bridge settings */ + txgbe_configure_bridge_mode(adapter); + + /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be + * calling set_ethertype_anti_spoofing for each VF in loop below. + */ + if (hw->mac.ops.set_ethertype_anti_spoofing) { + wr32(hw, + TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_LLDP), + (TXGBE_PSR_ETYPE_SWC_FILTER_EN | /* enable filter */ + TXGBE_PSR_ETYPE_SWC_TX_ANTISPOOF | + TXGBE_ETH_P_LLDP)); /* LLDP eth procotol type */ + + wr32(hw, + TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_FC), + (TXGBE_PSR_ETYPE_SWC_FILTER_EN | + TXGBE_PSR_ETYPE_SWC_TX_ANTISPOOF | + ETH_P_PAUSE)); + } + + for (i = 0; i < adapter->num_vfs; i++) { + /* enable ethertype anti spoofing if hw supports it */ + TCALL(hw, mac.ops.set_ethertype_anti_spoofing, true, i); + } +} + +static void txgbe_set_rx_buffer_len(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; + struct txgbe_ring *rx_ring; + int i; + u32 mhadd; + + /* adjust max frame to be at least the size of a standard frame */ + if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) + max_frame = (ETH_FRAME_LEN + ETH_FCS_LEN); + + mhadd = rd32(hw, TXGBE_PSR_MAX_SZ); + if (max_frame != mhadd) { + wr32(hw, TXGBE_PSR_MAX_SZ, max_frame); + } + + /* + * Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring + */ + for (i = 0; i < adapter->num_rx_queues; i++) { + rx_ring = adapter->rx_ring[i]; + + if (adapter->flags & TXGBE_FLAG_RX_HS_ENABLED) { + rx_ring->rx_buf_len = TXGBE_RX_HDR_SIZE; + set_ring_hs_enabled(rx_ring); + } else + clear_ring_hs_enabled(rx_ring); + + if (adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED) + set_ring_rsc_enabled(rx_ring); + else + clear_ring_rsc_enabled(rx_ring); + } +} + +/** + * txgbe_configure_rx - Configure Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Rx unit of the MAC after a reset. + **/ +static void txgbe_configure_rx(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i; + u32 rxctrl, psrctl; + + /* disable receives while setting up the descriptors */ + TCALL(hw, mac.ops.disable_rx); + + txgbe_setup_psrtype(adapter); + + /* enable hw crc stripping */ + wr32m(hw, TXGBE_RSC_CTL, + TXGBE_RSC_CTL_CRC_STRIP, TXGBE_RSC_CTL_CRC_STRIP); + + /* RSC Setup */ + psrctl = rd32m(hw, TXGBE_PSR_CTL, ~TXGBE_PSR_CTL_RSC_DIS); + psrctl |= TXGBE_PSR_CTL_RSC_ACK; /* Disable RSC for ACK packets */ + if (!(adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED)) + psrctl |= TXGBE_PSR_CTL_RSC_DIS; + wr32(hw, TXGBE_PSR_CTL, psrctl); + + /* Program registers for the distribution of queues */ + txgbe_setup_mrqc(adapter); + + /* set_rx_buffer_len must be called before ring initialization */ + txgbe_set_rx_buffer_len(adapter); + + /* + * Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring + */ + for (i = 0; i < adapter->num_rx_queues; i++) + txgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); + + rxctrl = rd32(hw, TXGBE_RDB_PB_CTL); + + /* enable all receives */ + rxctrl |= TXGBE_RDB_PB_CTL_RXEN; + TCALL(hw, mac.ops.enable_rx_dma, rxctrl); +} + +static int txgbe_vlan_rx_add_vid(struct net_device *netdev, + __always_unused __be16 proto, u16 vid) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + int pool_ndx = VMDQ_P(0); + + /* add VID to filter table */ + if (hw->mac.ops.set_vfta) { + if (vid < VLAN_N_VID) + set_bit(vid, adapter->active_vlans); + TCALL(hw, mac.ops.set_vfta, vid, pool_ndx, true); + if (adapter->flags & TXGBE_FLAG_VMDQ_ENABLED) { + int i; + /* enable vlan id for all pools */ + for_each_set_bit(i, &adapter->fwd_bitmask, + TXGBE_MAX_MACVLANS) + TCALL(hw, mac.ops.set_vfta, vid, + VMDQ_P(i), true); + } + } + + return 0; +} + +static int txgbe_vlan_rx_kill_vid(struct net_device *netdev, + __always_unused __be16 proto, u16 vid) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + int pool_ndx = VMDQ_P(0); + + /* User is not allowed to remove vlan ID 0 */ + if (!vid) + return 0; + + /* remove VID from filter table */ + if (hw->mac.ops.set_vfta) { + TCALL(hw, mac.ops.set_vfta, vid, pool_ndx, false); + if (adapter->flags & TXGBE_FLAG_VMDQ_ENABLED) { + int i; + /* remove vlan id from all pools */ + for_each_set_bit(i, &adapter->fwd_bitmask, + TXGBE_MAX_MACVLANS) + TCALL(hw, mac.ops.set_vfta, vid, + VMDQ_P(i), false); + } + } + + clear_bit(vid, adapter->active_vlans); + + return 0; +} + +#ifdef HAVE_8021P_SUPPORT +/** + * txgbe_vlan_strip_disable - helper to disable vlan tag stripping + * @adapter: driver data + */ +void txgbe_vlan_strip_disable(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i, j; + + /* leave vlan tag stripping enabled for DCB */ + if (adapter->flags & TXGBE_FLAG_DCB_ENABLED) + return; + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct txgbe_ring *ring = adapter->rx_ring[i]; + if (ring->accel) + continue; + j = ring->reg_idx; + wr32m(hw, TXGBE_PX_RR_CFG(j), + TXGBE_PX_RR_CFG_VLAN, 0); + } +} + +#endif +/** + * txgbe_vlan_strip_enable - helper to enable vlan tag stripping + * @adapter: driver data + */ +void txgbe_vlan_strip_enable(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i, j; + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct txgbe_ring *ring = adapter->rx_ring[i]; + if (ring->accel) + continue; + j = ring->reg_idx; + wr32m(hw, TXGBE_PX_RR_CFG(j), + TXGBE_PX_RR_CFG_VLAN, TXGBE_PX_RR_CFG_VLAN); + } +} + +void txgbe_vlan_mode(struct net_device *netdev, u32 features) +{ +#if defined(HAVE_8021P_SUPPORT) + struct txgbe_adapter *adapter = netdev_priv(netdev); +#endif +#ifdef HAVE_8021P_SUPPORT + bool enable; +#endif + +#ifdef HAVE_8021P_SUPPORT + enable = !!(features & (NETIF_F_HW_VLAN_CTAG_RX)); + + if (enable) + /* enable VLAN tag insert/strip */ + txgbe_vlan_strip_enable(adapter); + else + /* disable VLAN tag insert/strip */ + txgbe_vlan_strip_disable(adapter); + +#endif /* HAVE_8021P_SUPPORT */ +} + +static void txgbe_restore_vlan(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + u16 vid; + + txgbe_vlan_mode(netdev, netdev->features); + + for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) + txgbe_vlan_rx_add_vid(netdev, htons(ETH_P_8021Q), vid); +} + +static u8 *txgbe_addr_list_itr(struct txgbe_hw __maybe_unused *hw, + u8 **mc_addr_ptr, u32 *vmdq) +{ + struct netdev_hw_addr *mc_ptr; + u8 *addr = *mc_addr_ptr; + + /* VMDQ_P implicitely uses the adapter struct when CONFIG_PCI_IOV is + * defined, so we have to wrap the pointer above correctly to prevent + * a warning. + */ + *vmdq = VMDQ_P(0); + + mc_ptr = container_of(addr, struct netdev_hw_addr, addr[0]); + if (mc_ptr->list.next) { + struct netdev_hw_addr *ha; + ha = list_entry(mc_ptr->list.next, struct netdev_hw_addr, list); + *mc_addr_ptr = ha->addr; + } else + *mc_addr_ptr = NULL; + + return addr; +} + +/** + * txgbe_write_mc_addr_list - write multicast addresses to MTA + * @netdev: network interface device structure + * + * Writes multicast address list to the MTA hash table. + * Returns: -ENOMEM on failure + * 0 on no addresses written + * X on writing X addresses to MTA + **/ +int txgbe_write_mc_addr_list(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + struct netdev_hw_addr *ha; + u8 *addr_list = NULL; + int addr_count = 0; + + if (!hw->mac.ops.update_mc_addr_list) + return -ENOMEM; + + if (!netif_running(netdev)) + return 0; + + + if (netdev_mc_empty(netdev)) { + TCALL(hw, mac.ops.update_mc_addr_list, NULL, 0, + txgbe_addr_list_itr, true); + } else { + ha = list_first_entry(&netdev->mc.list, + struct netdev_hw_addr, list); + addr_list = ha->addr; + addr_count = netdev_mc_count(netdev); + + TCALL(hw, mac.ops.update_mc_addr_list, addr_list, addr_count, + txgbe_addr_list_itr, true); + } + + return addr_count; +} + + +void txgbe_full_sync_mac_table(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i; + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state & TXGBE_MAC_STATE_IN_USE) { + TCALL(hw, mac.ops.set_rar, i, + adapter->mac_table[i].addr, + adapter->mac_table[i].pools, + TXGBE_PSR_MAC_SWC_AD_H_AV); + } else { + TCALL(hw, mac.ops.clear_rar, i); + } + adapter->mac_table[i].state &= ~(TXGBE_MAC_STATE_MODIFIED); + } +} + +static void txgbe_sync_mac_table(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i; + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state & TXGBE_MAC_STATE_MODIFIED) { + if (adapter->mac_table[i].state & + TXGBE_MAC_STATE_IN_USE) { + TCALL(hw, mac.ops.set_rar, i, + adapter->mac_table[i].addr, + adapter->mac_table[i].pools, + TXGBE_PSR_MAC_SWC_AD_H_AV); + } else { + TCALL(hw, mac.ops.clear_rar, i); + } + adapter->mac_table[i].state &= + ~(TXGBE_MAC_STATE_MODIFIED); + } + } +} + +int txgbe_available_rars(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 i, count = 0; + + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state == 0) + count++; + } + return count; +} + +/* this function destroys the first RAR entry */ +static void txgbe_mac_set_default_filter(struct txgbe_adapter *adapter, + u8 *addr) +{ + struct txgbe_hw *hw = &adapter->hw; + + memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN); + adapter->mac_table[0].pools = 1ULL << VMDQ_P(0); + adapter->mac_table[0].state = (TXGBE_MAC_STATE_DEFAULT | + TXGBE_MAC_STATE_IN_USE); + TCALL(hw, mac.ops.set_rar, 0, adapter->mac_table[0].addr, + adapter->mac_table[0].pools, + TXGBE_PSR_MAC_SWC_AD_H_AV); +} + +int txgbe_add_mac_filter(struct txgbe_adapter *adapter, u8 *addr, u16 pool) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 i; + + if (is_zero_ether_addr(addr)) + return -EINVAL; + + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state & TXGBE_MAC_STATE_IN_USE) { + continue; + } + adapter->mac_table[i].state |= (TXGBE_MAC_STATE_MODIFIED | + TXGBE_MAC_STATE_IN_USE); + memcpy(adapter->mac_table[i].addr, addr, ETH_ALEN); + adapter->mac_table[i].pools = (1ULL << pool); + txgbe_sync_mac_table(adapter); + return i; + } + return -ENOMEM; +} + +static void txgbe_flush_sw_mac_table(struct txgbe_adapter *adapter) +{ + u32 i; + struct txgbe_hw *hw = &adapter->hw; + + for (i = 0; i < hw->mac.num_rar_entries; i++) { + adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE; + memset(adapter->mac_table[i].addr, 0, ETH_ALEN); + adapter->mac_table[i].pools = 0; + } + txgbe_sync_mac_table(adapter); +} + +int txgbe_del_mac_filter(struct txgbe_adapter *adapter, u8 *addr, u16 pool) +{ + /* search table for addr, if found, set to 0 and sync */ + u32 i; + struct txgbe_hw *hw = &adapter->hw; + + if (is_zero_ether_addr(addr)) + return -EINVAL; + + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (ether_addr_equal(addr, adapter->mac_table[i].addr) && + adapter->mac_table[i].pools | (1ULL << pool)) { + adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE; + memset(adapter->mac_table[i].addr, 0, ETH_ALEN); + adapter->mac_table[i].pools = 0; + txgbe_sync_mac_table(adapter); + return 0; + } + } + return -ENOMEM; +} + +/** + * txgbe_write_uc_addr_list - write unicast addresses to RAR table + * @netdev: network interface device structure + * + * Writes unicast address list to the RAR table. + * Returns: -ENOMEM on failure/insufficient address space + * 0 on no addresses written + * X on writing X addresses to the RAR table + **/ +int txgbe_write_uc_addr_list(struct net_device *netdev, int pool) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + int count = 0; + + /* return ENOMEM indicating insufficient memory for addresses */ + if (netdev_uc_count(netdev) > txgbe_available_rars(adapter)) + return -ENOMEM; + + if (!netdev_uc_empty(netdev)) { + struct netdev_hw_addr *ha; + + netdev_for_each_uc_addr(ha, netdev) { + txgbe_del_mac_filter(adapter, ha->addr, pool); + txgbe_add_mac_filter(adapter, ha->addr, pool); + count++; + } + } + return count; +} + +int txgbe_add_cloud_switcher(struct txgbe_adapter *adapter, u32 key, u16 pool) +{ + struct txgbe_hw *hw = &adapter->hw; + + UNREFERENCED_PARAMETER(pool); + + wr32(hw, TXGBE_PSR_CL_SWC_IDX, 0); + wr32(hw, TXGBE_PSR_CL_SWC_KEY, key); + wr32(hw, TXGBE_PSR_CL_SWC_CTL, + TXGBE_PSR_CL_SWC_CTL_VLD | TXGBE_PSR_CL_SWC_CTL_DST_MSK); + wr32(hw, TXGBE_PSR_CL_SWC_VM_L, 0x1); + wr32(hw, TXGBE_PSR_CL_SWC_VM_H, 0x0); + + return 0; +} + +int txgbe_del_cloud_switcher(struct txgbe_adapter *adapter, u32 key, u16 pool) +{ + /* search table for addr, if found, set to 0 and sync */ + struct txgbe_hw *hw = &adapter->hw; + + UNREFERENCED_PARAMETER(key); + UNREFERENCED_PARAMETER(pool); + + wr32(hw, TXGBE_PSR_CL_SWC_IDX, 0); + wr32(hw, TXGBE_PSR_CL_SWC_CTL, 0); + + return 0; +} + +/** + * txgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set + * @netdev: network interface device structure + * + * The set_rx_method entry point is called whenever the unicast/multicast + * address list or the network interface flags are updated. This routine is + * responsible for configuring the hardware for proper unicast, multicast and + * promiscuous mode. + **/ +void txgbe_set_rx_mode(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u32 fctrl, vmolr, vlnctrl; + int count; + + /* Check for Promiscuous and All Multicast modes */ + fctrl = rd32m(hw, TXGBE_PSR_CTL, + ~(TXGBE_PSR_CTL_UPE | TXGBE_PSR_CTL_MPE)); + vmolr = rd32m(hw, TXGBE_PSR_VM_L2CTL(VMDQ_P(0)), + ~(TXGBE_PSR_VM_L2CTL_UPE | + TXGBE_PSR_VM_L2CTL_MPE | + TXGBE_PSR_VM_L2CTL_ROPE | + TXGBE_PSR_VM_L2CTL_ROMPE)); + vlnctrl = rd32m(hw, TXGBE_PSR_VLAN_CTL, + ~(TXGBE_PSR_VLAN_CTL_VFE | + TXGBE_PSR_VLAN_CTL_CFIEN)); + + /* set all bits that we expect to always be set */ + fctrl |= TXGBE_PSR_CTL_BAM | TXGBE_PSR_CTL_MFE; + vmolr |= TXGBE_PSR_VM_L2CTL_BAM | + TXGBE_PSR_VM_L2CTL_AUPE | + TXGBE_PSR_VM_L2CTL_VACC; + vlnctrl |= TXGBE_PSR_VLAN_CTL_VFE; + + hw->addr_ctrl.user_set_promisc = false; + if (netdev->flags & IFF_PROMISC) { + hw->addr_ctrl.user_set_promisc = true; + fctrl |= (TXGBE_PSR_CTL_UPE | TXGBE_PSR_CTL_MPE); + /* pf don't want packets routing to vf, so clear UPE */ + vmolr |= TXGBE_PSR_VM_L2CTL_MPE; + vlnctrl &= ~TXGBE_PSR_VLAN_CTL_VFE; + } + + if (netdev->flags & IFF_ALLMULTI) { + fctrl |= TXGBE_PSR_CTL_MPE; + vmolr |= TXGBE_PSR_VM_L2CTL_MPE; + } + + /* This is useful for sniffing bad packets. */ + if (netdev->features & NETIF_F_RXALL) { + vmolr |= (TXGBE_PSR_VM_L2CTL_UPE | TXGBE_PSR_VM_L2CTL_MPE); + vlnctrl &= ~TXGBE_PSR_VLAN_CTL_VFE; + /* receive bad packets */ + wr32m(hw, TXGBE_RSC_CTL, + TXGBE_RSC_CTL_SAVE_MAC_ERR, + TXGBE_RSC_CTL_SAVE_MAC_ERR); + } else { + vmolr |= TXGBE_PSR_VM_L2CTL_ROPE | TXGBE_PSR_VM_L2CTL_ROMPE; + } + + /* + * Write addresses to available RAR registers, if there is not + * sufficient space to store all the addresses then enable + * unicast promiscuous mode + */ + count = txgbe_write_uc_addr_list(netdev, VMDQ_P(0)); + if (count < 0) { + vmolr &= ~TXGBE_PSR_VM_L2CTL_ROPE; + vmolr |= TXGBE_PSR_VM_L2CTL_UPE; + } + + /* + * Write addresses to the MTA, if the attempt fails + * then we should just turn on promiscuous mode so + * that we can at least receive multicast traffic + */ + count = txgbe_write_mc_addr_list(netdev); + if (count < 0) { + vmolr &= ~TXGBE_PSR_VM_L2CTL_ROMPE; + vmolr |= TXGBE_PSR_VM_L2CTL_MPE; + } + + wr32(hw, TXGBE_PSR_VLAN_CTL, vlnctrl); + wr32(hw, TXGBE_PSR_CTL, fctrl); + wr32(hw, TXGBE_PSR_VM_L2CTL(VMDQ_P(0)), vmolr); + + if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) + txgbe_vlan_strip_enable(adapter); + else + txgbe_vlan_strip_disable(adapter); + + /* enable cloud switch */ + if (adapter->flags2 & TXGBE_FLAG2_CLOUD_SWITCH_ENABLED) { + txgbe_add_cloud_switcher(adapter, 0x10, 0); + } +} + +static void txgbe_napi_enable_all(struct txgbe_adapter *adapter) +{ + struct txgbe_q_vector *q_vector; + int q_idx; + + for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { + q_vector = adapter->q_vector[q_idx]; + napi_enable(&q_vector->napi); + } +} + +static void txgbe_napi_disable_all(struct txgbe_adapter *adapter) +{ + struct txgbe_q_vector *q_vector; + int q_idx; + + for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { + q_vector = adapter->q_vector[q_idx]; + napi_disable(&q_vector->napi); + } +} + +void txgbe_clear_vxlan_port(struct txgbe_adapter *adapter) +{ + adapter->vxlan_port = 0; + if (!(adapter->flags & TXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) + return; + wr32(&adapter->hw, TXGBE_CFG_VXLAN, 0); +} + +#define TXGBE_GSO_PARTIAL_FEATURES (NETIF_F_GSO_GRE | \ + NETIF_F_GSO_GRE_CSUM | \ + NETIF_F_GSO_IPXIP4 | \ + NETIF_F_GSO_IPXIP6 | \ + NETIF_F_GSO_UDP_TUNNEL | \ + NETIF_F_GSO_UDP_TUNNEL_CSUM) + +static inline unsigned long txgbe_tso_features(void) +{ + unsigned long features = 0; + + features |= NETIF_F_TSO; + features |= NETIF_F_TSO6; + features |= NETIF_F_GSO_PARTIAL | TXGBE_GSO_PARTIAL_FEATURES; + + return features; +} + +static void txgbe_configure_lli(struct txgbe_adapter *adapter) +{ + /* lli should only be enabled with MSI-X and MSI */ + if (!(adapter->flags & TXGBE_FLAG_MSI_ENABLED) && + !(adapter->flags & TXGBE_FLAG_MSIX_ENABLED)) + return; + + if (adapter->lli_etype) { + wr32(&adapter->hw, TXGBE_RDB_5T_CTL1(0), + (TXGBE_RDB_5T_CTL1_LLI | + TXGBE_RDB_5T_CTL1_SIZE_BP)); + wr32(&adapter->hw, TXGBE_RDB_ETYPE_CLS(0), + TXGBE_RDB_ETYPE_CLS_LLI); + wr32(&adapter->hw, TXGBE_PSR_ETYPE_SWC(0), + (adapter->lli_etype | + TXGBE_PSR_ETYPE_SWC_FILTER_EN)); + } + + if (adapter->lli_port) { + wr32(&adapter->hw, TXGBE_RDB_5T_CTL1(0), + (TXGBE_RDB_5T_CTL1_LLI | + TXGBE_RDB_5T_CTL1_SIZE_BP)); + wr32(&adapter->hw, TXGBE_RDB_5T_CTL0(0), + (TXGBE_RDB_5T_CTL0_POOL_MASK_EN | + (TXGBE_RDB_5T_CTL0_PRIORITY_MASK << + TXGBE_RDB_5T_CTL0_PRIORITY_SHIFT) | + (TXGBE_RDB_5T_CTL0_DEST_PORT_MASK << + TXGBE_RDB_5T_CTL0_5TUPLE_MASK_SHIFT))); + + wr32(&adapter->hw, TXGBE_RDB_5T_SDP(0), + (adapter->lli_port << 16)); + } + + if (adapter->lli_size) { + wr32(&adapter->hw, TXGBE_RDB_5T_CTL1(0), + TXGBE_RDB_5T_CTL1_LLI); + wr32m(&adapter->hw, TXGBE_RDB_LLI_THRE, + TXGBE_RDB_LLI_THRE_SZ(~0), adapter->lli_size); + wr32(&adapter->hw, TXGBE_RDB_5T_CTL0(0), + (TXGBE_RDB_5T_CTL0_POOL_MASK_EN | + (TXGBE_RDB_5T_CTL0_PRIORITY_MASK << + TXGBE_RDB_5T_CTL0_PRIORITY_SHIFT) | + (TXGBE_RDB_5T_CTL0_5TUPLE_MASK_MASK << + TXGBE_RDB_5T_CTL0_5TUPLE_MASK_SHIFT))); + } + + if (adapter->lli_vlan_pri) { + wr32m(&adapter->hw, TXGBE_RDB_LLI_THRE, + TXGBE_RDB_LLI_THRE_PRIORITY_EN | + TXGBE_RDB_LLI_THRE_UP(~0), + TXGBE_RDB_LLI_THRE_PRIORITY_EN | + (adapter->lli_vlan_pri << TXGBE_RDB_LLI_THRE_UP_SHIFT)); + } +} + +/* Additional bittime to account for TXGBE framing */ +#define TXGBE_ETH_FRAMING 20 + +/* + * txgbe_hpbthresh - calculate high water mark for flow control + * + * @adapter: board private structure to calculate for + * @pb - packet buffer to calculate + */ +static int txgbe_hpbthresh(struct txgbe_adapter *adapter, int pb) +{ + struct txgbe_hw *hw = &adapter->hw; + struct net_device *dev = adapter->netdev; + int link, tc, kb, marker; + u32 dv_id, rx_pba; + + /* Calculate max LAN frame size */ + tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + TXGBE_ETH_FRAMING; + + /* Calculate delay value for device */ + dv_id = TXGBE_DV(link, tc); + + /* Loopback switch introduces additional latency */ + if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) + dv_id += TXGBE_B2BT(tc); + + /* Delay value is calculated in bit times convert to KB */ + kb = TXGBE_BT2KB(dv_id); + rx_pba = rd32(hw, TXGBE_RDB_PB_SZ(pb)) + >> TXGBE_RDB_PB_SZ_SHIFT; + + marker = rx_pba - kb; + + /* It is possible that the packet buffer is not large enough + * to provide required headroom. In this case throw an error + * to user and a do the best we can. + */ + if (marker < 0) { + e_warn(drv, "Packet Buffer(%i) can not provide enough" + "headroom to suppport flow control." + "Decrease MTU or number of traffic classes\n", pb); + marker = tc + 1; + } + + return marker; +} + +/* + * txgbe_lpbthresh - calculate low water mark for for flow control + * + * @adapter: board private structure to calculate for + * @pb - packet buffer to calculate + */ +static int txgbe_lpbthresh(struct txgbe_adapter *adapter, int __maybe_unused pb) +{ + struct net_device *dev = adapter->netdev; + int tc; + u32 dv_id; + + /* Calculate max LAN frame size */ + tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; + + /* Calculate delay value for device */ + dv_id = TXGBE_LOW_DV(tc); + + /* Delay value is calculated in bit times convert to KB */ + return TXGBE_BT2KB(dv_id); +} + +/* + * txgbe_pbthresh_setup - calculate and setup high low water marks + */ +static void txgbe_pbthresh_setup(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int num_tc = netdev_get_num_tc(adapter->netdev); + int i; + + if (!num_tc) + num_tc = 1; + + + for (i = 0; i < num_tc; i++) { + hw->fc.high_water[i] = txgbe_hpbthresh(adapter, i); + hw->fc.low_water[i] = txgbe_lpbthresh(adapter, i); + + /* Low water marks must not be larger than high water marks */ + if (hw->fc.low_water[i] > hw->fc.high_water[i]) + hw->fc.low_water[i] = 0; + } + + for (; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) + hw->fc.high_water[i] = 0; +} + +static void txgbe_configure_pb(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int hdrm; + int tc = netdev_get_num_tc(adapter->netdev); + + if (adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE || + adapter->flags & TXGBE_FLAG_FDIR_PERFECT_CAPABLE) + hdrm = 32 << adapter->fdir_pballoc; + else + hdrm = 0; + + TCALL(hw, mac.ops.setup_rxpba, tc, hdrm, PBA_STRATEGY_EQUAL); + txgbe_pbthresh_setup(adapter); +} + +static void txgbe_fdir_filter_restore(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct hlist_node *node; + struct txgbe_fdir_filter *filter; + + spin_lock(&adapter->fdir_perfect_lock); + + if (!hlist_empty(&adapter->fdir_filter_list)) + txgbe_fdir_set_input_mask(hw, &adapter->fdir_mask, + adapter->cloud_mode); + + hlist_for_each_entry_safe(filter, node, + &adapter->fdir_filter_list, fdir_node) { + txgbe_fdir_write_perfect_filter(hw, + &filter->filter, + filter->sw_idx, + (filter->action == TXGBE_RDB_FDIR_DROP_QUEUE) ? + TXGBE_RDB_FDIR_DROP_QUEUE : + adapter->rx_ring[filter->action]->reg_idx, + adapter->cloud_mode); + } + + spin_unlock(&adapter->fdir_perfect_lock); +} + +void txgbe_configure_isb(struct txgbe_adapter *adapter) +{ + /* set ISB Address */ + struct txgbe_hw *hw = &adapter->hw; + + wr32(hw, TXGBE_PX_ISB_ADDR_L, + adapter->isb_dma & DMA_BIT_MASK(32)); + wr32(hw, TXGBE_PX_ISB_ADDR_H, adapter->isb_dma >> 32); +} + +void txgbe_configure_port(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 value, i; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + if (adapter->flags & TXGBE_FLAG_VMDQ_ENABLED) { + if (tcs > 4) + /* 8 TCs */ + value = TXGBE_CFG_PORT_CTL_NUM_TC_8 | + TXGBE_CFG_PORT_CTL_NUM_VT_16 | + TXGBE_CFG_PORT_CTL_DCB_EN; + else if (tcs > 1) + /* 4 TCs */ + value = TXGBE_CFG_PORT_CTL_NUM_TC_4 | + TXGBE_CFG_PORT_CTL_NUM_VT_32 | + TXGBE_CFG_PORT_CTL_DCB_EN; + else if (adapter->ring_feature[RING_F_RSS].indices == 4) + value = TXGBE_CFG_PORT_CTL_NUM_VT_32; + else /* adapter->ring_feature[RING_F_RSS].indices <= 2 */ + value = TXGBE_CFG_PORT_CTL_NUM_VT_64; + } else { + if (tcs > 4) + value = TXGBE_CFG_PORT_CTL_NUM_TC_8 | + TXGBE_CFG_PORT_CTL_DCB_EN; + else if (tcs > 1) + value = TXGBE_CFG_PORT_CTL_NUM_TC_4 | + TXGBE_CFG_PORT_CTL_DCB_EN; + else + value = 0; + } + + value |= TXGBE_CFG_PORT_CTL_D_VLAN | TXGBE_CFG_PORT_CTL_QINQ; + wr32m(hw, TXGBE_CFG_PORT_CTL, + TXGBE_CFG_PORT_CTL_NUM_TC_MASK | + TXGBE_CFG_PORT_CTL_NUM_VT_MASK | + TXGBE_CFG_PORT_CTL_DCB_EN | + TXGBE_CFG_PORT_CTL_D_VLAN | + TXGBE_CFG_PORT_CTL_QINQ, + value); + + wr32(hw, TXGBE_CFG_TAG_TPID(0), + ETH_P_8021Q | ETH_P_8021AD << 16); + adapter->hw.tpid[0] = ETH_P_8021Q; + adapter->hw.tpid[1] = ETH_P_8021AD; + for (i = 1; i < 4; i++) + wr32(hw, TXGBE_CFG_TAG_TPID(i), + ETH_P_8021Q | ETH_P_8021Q << 16); + for (i = 2; i < 8; i++) + adapter->hw.tpid[i] = ETH_P_8021Q; +} + +static void txgbe_configure(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + + txgbe_configure_pb(adapter); + + /* + * We must restore virtualization before VLANs or else + * the VLVF registers will not be populated + */ + txgbe_configure_virtualization(adapter); + txgbe_configure_port(adapter); + + txgbe_set_rx_mode(adapter->netdev); + txgbe_restore_vlan(adapter); + + TCALL(hw, mac.ops.disable_sec_rx_path); + + if (adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE) { + txgbe_init_fdir_signature(&adapter->hw, + adapter->fdir_pballoc); + } else if (adapter->flags & TXGBE_FLAG_FDIR_PERFECT_CAPABLE) { + txgbe_init_fdir_perfect(&adapter->hw, + adapter->fdir_pballoc, + adapter->cloud_mode); + txgbe_fdir_filter_restore(adapter); + } + + TCALL(hw, mac.ops.enable_sec_rx_path); + + TCALL(hw, mac.ops.setup_eee, + (adapter->flags2 & TXGBE_FLAG2_EEE_CAPABLE) && + (adapter->flags2 & TXGBE_FLAG2_EEE_ENABLED)); + + txgbe_configure_tx(adapter); + txgbe_configure_rx(adapter); + txgbe_configure_isb(adapter); +} + +static bool txgbe_is_sfp(struct txgbe_hw *hw) +{ + switch (TCALL(hw, mac.ops.get_media_type)) { + case txgbe_media_type_fiber: + return true; + default: + return false; + } +} + +static bool txgbe_is_backplane(struct txgbe_hw *hw) +{ + switch (TCALL(hw, mac.ops.get_media_type)) { + case txgbe_media_type_backplane: + return true; + default: + return false; + } +} + +/** + * txgbe_sfp_link_config - set up SFP+ link + * @adapter: pointer to private adapter struct + **/ +static void txgbe_sfp_link_config(struct txgbe_adapter *adapter) +{ + /* + * We are assuming the worst case scenerio here, and that + * is that an SFP was inserted/removed after the reset + * but before SFP detection was enabled. As such the best + * solution is to just start searching as soon as we start + */ + + adapter->flags2 |= TXGBE_FLAG2_SFP_NEEDS_RESET; + adapter->sfp_poll_time = 0; +} + +/** + * txgbe_non_sfp_link_config - set up non-SFP+ link + * @hw: pointer to private hardware struct + * + * Returns 0 on success, negative on failure + **/ +static int txgbe_non_sfp_link_config(struct txgbe_hw *hw) +{ + u32 speed; + bool autoneg, link_up = false; + u32 ret = TXGBE_ERR_LINK_SETUP; + + ret = TCALL(hw, mac.ops.check_link, &speed, &link_up, false); + + if (ret) + goto link_cfg_out; + + if (link_up) + return 0; + + if ((hw->subsystem_id & 0xF0) != TXGBE_ID_SFI_XAUI) { + /* setup external PHY Mac Interface */ + mtdSetMacInterfaceControl(&hw->phy_dev, hw->phy.addr, MTD_MAC_TYPE_XAUI, + MTD_FALSE, MTD_MAC_SNOOP_OFF, + 0, MTD_MAC_SPEED_1000_MBPS, + MTD_MAX_MAC_SPEED_LEAVE_UNCHANGED, + MTD_TRUE, MTD_TRUE); + + speed = hw->phy.autoneg_advertised; + if (!speed) + ret = TCALL(hw, mac.ops.get_link_capabilities, &speed, + &autoneg); + if (ret) + goto link_cfg_out; + } else { + speed = TXGBE_LINK_SPEED_10GB_FULL; + autoneg = false; + } + + ret = TCALL(hw, mac.ops.setup_link, speed, autoneg); + +link_cfg_out: + return ret; +} + +/** + * txgbe_clear_vf_stats_counters - Clear out VF stats after reset + * @adapter: board private structure + * + * On a reset we need to clear out the VF stats or accounting gets + * messed up because they're not clear on read. + **/ +static void txgbe_clear_vf_stats_counters(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i; + + for (i = 0; i < adapter->num_vfs; i++) { + adapter->vfinfo[i].last_vfstats.gprc = + rd32(hw, TXGBE_VX_GPRC(i)); + adapter->vfinfo[i].saved_rst_vfstats.gprc += + adapter->vfinfo[i].vfstats.gprc; + adapter->vfinfo[i].vfstats.gprc = 0; + adapter->vfinfo[i].last_vfstats.gptc = + rd32(hw, TXGBE_VX_GPTC(i)); + adapter->vfinfo[i].saved_rst_vfstats.gptc += + adapter->vfinfo[i].vfstats.gptc; + adapter->vfinfo[i].vfstats.gptc = 0; + adapter->vfinfo[i].last_vfstats.gorc = + rd32(hw, TXGBE_VX_GORC_LSB(i)); + adapter->vfinfo[i].saved_rst_vfstats.gorc += + adapter->vfinfo[i].vfstats.gorc; + adapter->vfinfo[i].vfstats.gorc = 0; + adapter->vfinfo[i].last_vfstats.gotc = + rd32(hw, TXGBE_VX_GOTC_LSB(i)); + adapter->vfinfo[i].saved_rst_vfstats.gotc += + adapter->vfinfo[i].vfstats.gotc; + adapter->vfinfo[i].vfstats.gotc = 0; + adapter->vfinfo[i].last_vfstats.mprc = + rd32(hw, TXGBE_VX_MPRC(i)); + adapter->vfinfo[i].saved_rst_vfstats.mprc += + adapter->vfinfo[i].vfstats.mprc; + adapter->vfinfo[i].vfstats.mprc = 0; + } +} + +static void txgbe_setup_gpie(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 gpie = 0; + + if (adapter->flags & TXGBE_FLAG_MSIX_ENABLED) { + gpie = TXGBE_PX_GPIE_MODEL; + /* + * use EIAM to auto-mask when MSI-X interrupt is asserted + * this saves a register write for every interrupt + */ + } else { + /* legacy interrupts, use EIAM to auto-mask when reading EICR, + * specifically only auto mask tx and rx interrupts */ + } + + wr32(hw, TXGBE_PX_GPIE, gpie); +} + +static void txgbe_up_complete(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int err; + u32 links_reg; + u16 value; + + txgbe_get_hw_control(adapter); + txgbe_setup_gpie(adapter); + + if (adapter->flags & TXGBE_FLAG_MSIX_ENABLED) + txgbe_configure_msix(adapter); + else + txgbe_configure_msi_and_legacy(adapter); + + /* enable the optics for SFP+ fiber */ + TCALL(hw, mac.ops.enable_tx_laser); + + smp_mb__before_atomic(); + clear_bit(__TXGBE_DOWN, &adapter->state); + txgbe_napi_enable_all(adapter); + + txgbe_configure_lli(adapter); + + if (txgbe_is_sfp(hw)) { + txgbe_sfp_link_config(adapter); + } else if (txgbe_is_backplane(hw)) { + adapter->flags |= TXGBE_FLAG_NEED_LINK_CONFIG; + txgbe_service_event_schedule(adapter); + } else { + err = txgbe_non_sfp_link_config(hw); + if (err) + e_err(probe, "link_config FAILED %d\n", err); + } + + links_reg = rd32(hw, TXGBE_CFG_PORT_ST); + if (links_reg & TXGBE_CFG_PORT_ST_LINK_UP) { + if (links_reg & TXGBE_CFG_PORT_ST_LINK_10G) { + wr32(hw, TXGBE_MAC_TX_CFG, + (rd32(hw, TXGBE_MAC_TX_CFG) & + ~TXGBE_MAC_TX_CFG_SPEED_MASK) | + TXGBE_MAC_TX_CFG_SPEED_10G); + } else if (links_reg & (TXGBE_CFG_PORT_ST_LINK_1G | TXGBE_CFG_PORT_ST_LINK_100M)) { + wr32(hw, TXGBE_MAC_TX_CFG, + (rd32(hw, TXGBE_MAC_TX_CFG) & + ~TXGBE_MAC_TX_CFG_SPEED_MASK) | + TXGBE_MAC_TX_CFG_SPEED_1G); + } + } + + /* clear any pending interrupts, may auto mask */ + rd32(hw, TXGBE_PX_IC(0)); + rd32(hw, TXGBE_PX_IC(1)); + rd32(hw, TXGBE_PX_MISC_IC); + txgbe_irq_enable(adapter, true, true); + + /* enable external PHY interrupt */ + if ((hw->subsystem_id & 0xF0) == TXGBE_ID_XAUI) { + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 0x03, 0x8011, &value); + /* only enable T unit int */ + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xf043, 0x1); + /* active high */ + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 31, 0xf041, 0x0); + /* enable AN complete and link status change int */ + txgbe_write_mdio(&hw->phy_dev, hw->phy.addr, 0x03, 0x8010, 0xc00); + } + + /* enable transmits */ + netif_tx_start_all_queues(adapter->netdev); + + /* bring the link up in the watchdog, this could race with our first + * link up interrupt but shouldn't be a problem */ + adapter->flags |= TXGBE_FLAG_NEED_LINK_UPDATE; + adapter->link_check_timeout = jiffies; + + mod_timer(&adapter->service_timer, jiffies); + txgbe_clear_vf_stats_counters(adapter); + + /* Set PF Reset Done bit so PF/VF Mail Ops can work */ + wr32m(hw, TXGBE_CFG_PORT_CTL, + TXGBE_CFG_PORT_CTL_PFRSTD, TXGBE_CFG_PORT_CTL_PFRSTD); +} + +void txgbe_reinit_locked(struct txgbe_adapter *adapter) +{ + WARN_ON(in_interrupt()); + /* put off any impending NetWatchDogTimeout */ + netif_trans_update(adapter->netdev); + + while (test_and_set_bit(__TXGBE_RESETTING, &adapter->state)) + usleep_range(1000, 2000); + txgbe_down(adapter); + /* + * If SR-IOV enabled then wait a bit before bringing the adapter + * back up to give the VFs time to respond to the reset. The + * two second wait is based upon the watchdog timer cycle in + * the VF driver. + */ + if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) + msleep(2000); + txgbe_up(adapter); + clear_bit(__TXGBE_RESETTING, &adapter->state); +} + +void txgbe_up(struct txgbe_adapter *adapter) +{ + /* hardware has been reset, we need to reload some things */ + txgbe_configure(adapter); + + txgbe_up_complete(adapter); +} + +void txgbe_reset(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + int err; + u8 old_addr[ETH_ALEN]; + + if (TXGBE_REMOVED(hw->hw_addr)) + return; + /* lock SFP init bit to prevent race conditions with the watchdog */ + while (test_and_set_bit(__TXGBE_IN_SFP_INIT, &adapter->state)) + usleep_range(1000, 2000); + + /* clear all SFP and link config related flags while holding SFP_INIT */ + adapter->flags2 &= ~(TXGBE_FLAG2_SEARCH_FOR_SFP | + TXGBE_FLAG2_SFP_NEEDS_RESET); + adapter->flags &= ~TXGBE_FLAG_NEED_LINK_CONFIG; + + err = TCALL(hw, mac.ops.init_hw); + switch (err) { + case 0: + case TXGBE_ERR_SFP_NOT_PRESENT: + case TXGBE_ERR_SFP_NOT_SUPPORTED: + break; + case TXGBE_ERR_MASTER_REQUESTS_PENDING: + e_dev_err("master disable timed out\n"); + break; + case TXGBE_ERR_EEPROM_VERSION: + /* We are running on a pre-production device, log a warning */ + e_dev_warn("This device is a pre-production adapter/LOM. " + "Please be aware there may be issues associated " + "with your hardware. If you are experiencing " + "problems please contact your hardware " + "representative who provided you with this " + "hardware.\n"); + break; + default: + e_dev_err("Hardware Error: %d\n", err); + } + + clear_bit(__TXGBE_IN_SFP_INIT, &adapter->state); + /* do not flush user set addresses */ + memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len); + txgbe_flush_sw_mac_table(adapter); + txgbe_mac_set_default_filter(adapter, old_addr); + + /* update SAN MAC vmdq pool selection */ + TCALL(hw, mac.ops.set_vmdq_san_mac, VMDQ_P(0)); + + /* Clear saved DMA coalescing values except for watchdog_timer */ + hw->mac.dmac_config.fcoe_en = false; + hw->mac.dmac_config.link_speed = 0; + hw->mac.dmac_config.fcoe_tc = 0; + hw->mac.dmac_config.num_tcs = 0; + + if (test_bit(__TXGBE_PTP_RUNNING, &adapter->state)) + txgbe_ptp_reset(adapter); +} + +/** + * txgbe_clean_rx_ring - Free Rx Buffers per Queue + * @rx_ring: ring to free buffers from + **/ +static void txgbe_clean_rx_ring(struct txgbe_ring *rx_ring) +{ + struct device *dev = rx_ring->dev; + unsigned long size; + u16 i; + + /* ring already cleared, nothing to do */ + if (!rx_ring->rx_buffer_info) + return; + + /* Free all the Rx ring sk_buffs */ + for (i = 0; i < rx_ring->count; i++) { + struct txgbe_rx_buffer *rx_buffer = &rx_ring->rx_buffer_info[i]; + if (rx_buffer->dma) { + dma_unmap_single(dev, + rx_buffer->dma, + rx_ring->rx_buf_len, + DMA_FROM_DEVICE); + rx_buffer->dma = 0; + } + + if (rx_buffer->skb) { + struct sk_buff *skb = rx_buffer->skb; + if (TXGBE_CB(skb)->dma_released) { + dma_unmap_single(dev, + TXGBE_CB(skb)->dma, + rx_ring->rx_buf_len, + DMA_FROM_DEVICE); + TXGBE_CB(skb)->dma = 0; + TXGBE_CB(skb)->dma_released = false; + } + + if (TXGBE_CB(skb)->page_released) + dma_unmap_page(dev, + TXGBE_CB(skb)->dma, + txgbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); + dev_kfree_skb(skb); + rx_buffer->skb = NULL; + } + + if (!rx_buffer->page) + continue; + + dma_unmap_page(dev, rx_buffer->page_dma, + txgbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE); + + __free_pages(rx_buffer->page, + txgbe_rx_pg_order(rx_ring)); + rx_buffer->page = NULL; + } + + size = sizeof(struct txgbe_rx_buffer) * rx_ring->count; + memset(rx_ring->rx_buffer_info, 0, size); + + /* Zero out the descriptor ring */ + memset(rx_ring->desc, 0, rx_ring->size); + + rx_ring->next_to_alloc = 0; + rx_ring->next_to_clean = 0; + rx_ring->next_to_use = 0; +} + +/** + * txgbe_clean_tx_ring - Free Tx Buffers + * @tx_ring: ring to be cleaned + **/ +static void txgbe_clean_tx_ring(struct txgbe_ring *tx_ring) +{ + struct txgbe_tx_buffer *tx_buffer_info; + unsigned long size; + u16 i; + + /* ring already cleared, nothing to do */ + if (!tx_ring->tx_buffer_info) + return; + + /* Free all the Tx ring sk_buffs */ + for (i = 0; i < tx_ring->count; i++) { + tx_buffer_info = &tx_ring->tx_buffer_info[i]; + txgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); + } + + netdev_tx_reset_queue(txring_txq(tx_ring)); + + size = sizeof(struct txgbe_tx_buffer) * tx_ring->count; + memset(tx_ring->tx_buffer_info, 0, size); + + /* Zero out the descriptor ring */ + memset(tx_ring->desc, 0, tx_ring->size); +} + +/** + * txgbe_clean_all_rx_rings - Free Rx Buffers for all queues + * @adapter: board private structure + **/ +static void txgbe_clean_all_rx_rings(struct txgbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + txgbe_clean_rx_ring(adapter->rx_ring[i]); +} + +/** + * txgbe_clean_all_tx_rings - Free Tx Buffers for all queues + * @adapter: board private structure + **/ +static void txgbe_clean_all_tx_rings(struct txgbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + txgbe_clean_tx_ring(adapter->tx_ring[i]); +} + +static void txgbe_fdir_filter_exit(struct txgbe_adapter *adapter) +{ + struct hlist_node *node; + struct txgbe_fdir_filter *filter; + + spin_lock(&adapter->fdir_perfect_lock); + + hlist_for_each_entry_safe(filter, node, + &adapter->fdir_filter_list, fdir_node) { + hlist_del(&filter->fdir_node); + kfree(filter); + } + adapter->fdir_filter_count = 0; + + spin_unlock(&adapter->fdir_perfect_lock); +} + +void txgbe_disable_device(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct txgbe_hw *hw = &adapter->hw; + + u32 i; + + /* signal that we are down to the interrupt handler */ + if (test_and_set_bit(__TXGBE_DOWN, &adapter->state)) + return; /* do nothing if already down */ + + txgbe_disable_pcie_master(hw); + /* disable receives */ + TCALL(hw, mac.ops.disable_rx); + + /* disable all enabled rx queues */ + for (i = 0; i < adapter->num_rx_queues; i++) + /* this call also flushes the previous write */ + txgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); + + netif_tx_stop_all_queues(netdev); + + /* call carrier off first to avoid false dev_watchdog timeouts */ + netif_carrier_off(netdev); + netif_tx_disable(netdev); + + txgbe_irq_disable(adapter); + + txgbe_napi_disable_all(adapter); + + adapter->flags2 &= ~(TXGBE_FLAG2_FDIR_REQUIRES_REINIT | + TXGBE_FLAG2_PF_RESET_REQUESTED | + TXGBE_FLAG2_DEV_RESET_REQUESTED | + TXGBE_FLAG2_GLOBAL_RESET_REQUESTED); + adapter->flags &= ~TXGBE_FLAG_NEED_LINK_UPDATE; + + del_timer_sync(&adapter->service_timer); + + if (adapter->num_vfs) { + /* Clear EITR Select mapping */ + wr32(&adapter->hw, TXGBE_PX_ITRSEL, 0); + + /* Mark all the VFs as inactive */ + for (i = 0 ; i < adapter->num_vfs; i++) + adapter->vfinfo[i].clear_to_send = 0; + + /* ping all the active vfs to let them know we are going down */ + + /* Disable all VFTE/VFRE TX/RX */ + } + + if (!(((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) || + ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP))) { + /* disable mac transmiter */ + wr32m(hw, TXGBE_MAC_TX_CFG, + TXGBE_MAC_TX_CFG_TE, 0); + } + /* disable transmits in the hardware now that interrupts are off */ + for (i = 0; i < adapter->num_tx_queues; i++) { + u8 reg_idx = adapter->tx_ring[i]->reg_idx; + wr32(hw, TXGBE_PX_TR_CFG(reg_idx), + TXGBE_PX_TR_CFG_SWFLSH); + } + + /* Disable the Tx DMA engine */ + wr32m(hw, TXGBE_TDM_CTL, TXGBE_TDM_CTL_TE, 0); +} + + +void txgbe_down(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + txgbe_disable_device(adapter); + + txgbe_reset(adapter); + + if (!(((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP))) + /* power down the optics for SFP+ fiber */ + TCALL(&adapter->hw, mac.ops.disable_tx_laser); + + txgbe_clean_all_tx_rings(adapter); + txgbe_clean_all_rx_rings(adapter); +} + +/** + * txgbe_init_shared_code - Initialize the shared code + * @hw: pointer to hardware structure + * + * This will assign function pointers and assign the MAC type and PHY code. + * Does not touch the hardware. This function must be called prior to any + * other function in the shared code. The txgbe_hw structure should be + * memset to 0 prior to calling this function. The following fields in + * hw structure should be filled in prior to calling this function: + * hw_addr, back, device_id, vendor_id, subsystem_device_id, + * subsystem_vendor_id, and revision_id + **/ +s32 txgbe_init_shared_code(struct txgbe_hw *hw) +{ + s32 status; + + DEBUGFUNC("\n"); + + status = txgbe_init_ops(hw); + return status; +} + +/** + * txgbe_sw_init - Initialize general software structures (struct txgbe_adapter) + * @adapter: board private structure to initialize + * + * txgbe_sw_init initializes the Adapter private data structure. + * Fields are initialized based on PCI device information and + * OS network device settings (MTU size). + **/ +static const u32 def_rss_key[10] = { + 0xE291D73D, 0x1805EC6C, 0x2A94B30D, + 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, + 0x6A3E67EA, 0x14364D17, 0x3BED200D +}; + +static int txgbe_sw_init(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + int err; + unsigned int fdir; + + /* PCI config space info */ + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); + if (hw->revision_id == TXGBE_FAILED_READ_CFG_BYTE && + txgbe_check_cfg_remove(hw, pdev)) { + e_err(probe, "read of revision id failed\n"); + err = -ENODEV; + goto out; + } + hw->subsystem_vendor_id = pdev->subsystem_vendor; + hw->subsystem_device_id = pdev->subsystem_device; + + pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &hw->subsystem_id); + if (hw->subsystem_id == TXGBE_FAILED_READ_CFG_WORD) { + e_err(probe, "read of subsystem id failed\n"); + err = -ENODEV; + goto out; + } + + err = txgbe_init_shared_code(hw); + if (err) { + e_err(probe, "init_shared_code failed: %d\n", err); + goto out; + } + adapter->mac_table = kzalloc(sizeof(struct txgbe_mac_addr) * + hw->mac.num_rar_entries, + GFP_ATOMIC); + if (!adapter->mac_table) { + err = TXGBE_ERR_OUT_OF_MEM; + e_err(probe, "mac_table allocation failed: %d\n", err); + goto out; + } + + memcpy(adapter->rss_key, def_rss_key, sizeof(def_rss_key)); + + /* Set common capability flags and settings */ + adapter->flags2 |= TXGBE_FLAG2_RSC_CAPABLE; + fdir = min_t(int, TXGBE_MAX_FDIR_INDICES, num_online_cpus()); + adapter->ring_feature[RING_F_FDIR].limit = fdir; + adapter->max_q_vectors = TXGBE_MAX_MSIX_Q_VECTORS_SAPPHIRE; + + /* Set MAC specific capability flags and exceptions */ + adapter->flags |= TXGBE_FLAGS_SP_INIT; + adapter->flags2 |= TXGBE_FLAG2_TEMP_SENSOR_CAPABLE; + hw->phy.smart_speed = txgbe_smart_speed_off; + adapter->flags2 |= TXGBE_FLAG2_EEE_CAPABLE; + + /* n-tuple support exists, always init our spinlock */ + spin_lock_init(&adapter->fdir_perfect_lock); + + TCALL(hw, mbx.ops.init_params); + + /* default flow control settings */ + hw->fc.requested_mode = txgbe_fc_full; + hw->fc.current_mode = txgbe_fc_full; /* init for ethtool output */ + + adapter->last_lfc_mode = hw->fc.current_mode; + hw->fc.pause_time = TXGBE_DEFAULT_FCPAUSE; + hw->fc.send_xon = true; + hw->fc.disable_fc_autoneg = false; + + /* set default ring sizes */ + adapter->tx_ring_count = TXGBE_DEFAULT_TXD; + adapter->rx_ring_count = TXGBE_DEFAULT_RXD; + + /* set default work limits */ + adapter->tx_work_limit = TXGBE_DEFAULT_TX_WORK; + adapter->rx_work_limit = TXGBE_DEFAULT_RX_WORK; + + adapter->tx_timeout_recovery_level = 0; + + /* PF holds first pool slot */ + adapter->num_vmdqs = 1; + set_bit(0, &adapter->fwd_bitmask); + set_bit(__TXGBE_DOWN, &adapter->state); +out: + return err; +} + +/** + * txgbe_setup_tx_resources - allocate Tx resources (Descriptors) + * @tx_ring: tx descriptor ring (for a specific queue) to setup + * + * Return 0 on success, negative on failure + **/ +int txgbe_setup_tx_resources(struct txgbe_ring *tx_ring) +{ + struct device *dev = tx_ring->dev; + int orig_node = dev_to_node(dev); + int numa_node = -1; + int size; + + size = sizeof(struct txgbe_tx_buffer) * tx_ring->count; + + if (tx_ring->q_vector) + numa_node = tx_ring->q_vector->numa_node; + + tx_ring->tx_buffer_info = vzalloc_node(size, numa_node); + if (!tx_ring->tx_buffer_info) + tx_ring->tx_buffer_info = vzalloc(size); + if (!tx_ring->tx_buffer_info) + goto err; + + /* round up to nearest 4K */ + tx_ring->size = tx_ring->count * sizeof(union txgbe_tx_desc); + tx_ring->size = ALIGN(tx_ring->size, 4096); + + set_dev_node(dev, numa_node); + tx_ring->desc = dma_alloc_coherent(dev, + tx_ring->size, + &tx_ring->dma, + GFP_KERNEL); + set_dev_node(dev, orig_node); + if (!tx_ring->desc) + tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, + &tx_ring->dma, GFP_KERNEL); + if (!tx_ring->desc) + goto err; + + return 0; + +err: + vfree(tx_ring->tx_buffer_info); + tx_ring->tx_buffer_info = NULL; + dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); + return -ENOMEM; +} + +/** + * txgbe_setup_all_tx_resources - allocate all queues Tx resources + * @adapter: board private structure + * + * If this function returns with an error, then it's possible one or + * more of the rings is populated (while the rest are not). It is the + * callers duty to clean those orphaned rings. + * + * Return 0 on success, negative on failure + **/ +static int txgbe_setup_all_tx_resources(struct txgbe_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_tx_queues; i++) { + err = txgbe_setup_tx_resources(adapter->tx_ring[i]); + if (!err) + continue; + + e_err(probe, "Allocation for Tx Queue %u failed\n", i); + goto err_setup_tx; + } + + return 0; +err_setup_tx: + /* rewind the index freeing the rings as we go */ + while (i--) + txgbe_free_tx_resources(adapter->tx_ring[i]); + return err; +} + +/** + * txgbe_setup_rx_resources - allocate Rx resources (Descriptors) + * @rx_ring: rx descriptor ring (for a specific queue) to setup + * + * Returns 0 on success, negative on failure + **/ +int txgbe_setup_rx_resources(struct txgbe_ring *rx_ring) +{ + struct device *dev = rx_ring->dev; + int orig_node = dev_to_node(dev); + int numa_node = -1; + int size; + + size = sizeof(struct txgbe_rx_buffer) * rx_ring->count; + + if (rx_ring->q_vector) + numa_node = rx_ring->q_vector->numa_node; + + rx_ring->rx_buffer_info = vzalloc_node(size, numa_node); + if (!rx_ring->rx_buffer_info) + rx_ring->rx_buffer_info = vzalloc(size); + if (!rx_ring->rx_buffer_info) + goto err; + + /* Round up to nearest 4K */ + rx_ring->size = rx_ring->count * sizeof(union txgbe_rx_desc); + rx_ring->size = ALIGN(rx_ring->size, 4096); + + set_dev_node(dev, numa_node); + rx_ring->desc = dma_alloc_coherent(dev, + rx_ring->size, + &rx_ring->dma, + GFP_KERNEL); + set_dev_node(dev, orig_node); + if (!rx_ring->desc) + rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, + &rx_ring->dma, GFP_KERNEL); + if (!rx_ring->desc) + goto err; + + return 0; +err: + vfree(rx_ring->rx_buffer_info); + rx_ring->rx_buffer_info = NULL; + dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); + return -ENOMEM; +} + +/** + * txgbe_setup_all_rx_resources - allocate all queues Rx resources + * @adapter: board private structure + * + * If this function returns with an error, then it's possible one or + * more of the rings is populated (while the rest are not). It is the + * callers duty to clean those orphaned rings. + * + * Return 0 on success, negative on failure + **/ +static int txgbe_setup_all_rx_resources(struct txgbe_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_rx_queues; i++) { + err = txgbe_setup_rx_resources(adapter->rx_ring[i]); + if (!err) { + continue; + } + + e_err(probe, "Allocation for Rx Queue %u failed\n", i); + goto err_setup_rx; + } + + return 0; +err_setup_rx: + /* rewind the index freeing the rings as we go */ + while (i--) + txgbe_free_rx_resources(adapter->rx_ring[i]); + return err; +} + +/** + * txgbe_setup_isb_resources - allocate interrupt status resources + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ +static int txgbe_setup_isb_resources(struct txgbe_adapter *adapter) +{ + struct device *dev = pci_dev_to_dev(adapter->pdev); + + adapter->isb_mem = dma_alloc_coherent(dev, + sizeof(u32) * TXGBE_ISB_MAX, + &adapter->isb_dma, + GFP_KERNEL); + if (!adapter->isb_mem) + return -ENOMEM; + memset(adapter->isb_mem, 0, sizeof(u32) * TXGBE_ISB_MAX); + return 0; +} + +/** + * txgbe_free_isb_resources - allocate all queues Rx resources + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ +static void txgbe_free_isb_resources(struct txgbe_adapter *adapter) +{ + struct device *dev = pci_dev_to_dev(adapter->pdev); + + dma_free_coherent(dev, sizeof(u32) * TXGBE_ISB_MAX, + adapter->isb_mem, adapter->isb_dma); + adapter->isb_mem = NULL; +} + +/** + * txgbe_free_tx_resources - Free Tx Resources per Queue + * @tx_ring: Tx descriptor ring for a specific queue + * + * Free all transmit software resources + **/ +void txgbe_free_tx_resources(struct txgbe_ring *tx_ring) +{ + txgbe_clean_tx_ring(tx_ring); + + vfree(tx_ring->tx_buffer_info); + tx_ring->tx_buffer_info = NULL; + + /* if not set, then don't free */ + if (!tx_ring->desc) + return; + + dma_free_coherent(tx_ring->dev, tx_ring->size, + tx_ring->desc, tx_ring->dma); + tx_ring->desc = NULL; +} + +/** + * txgbe_free_all_tx_resources - Free Tx Resources for All Queues + * @adapter: board private structure + * + * Free all transmit software resources + **/ +static void txgbe_free_all_tx_resources(struct txgbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + txgbe_free_tx_resources(adapter->tx_ring[i]); +} + +/** + * txgbe_free_rx_resources - Free Rx Resources + * @rx_ring: ring to clean the resources from + * + * Free all receive software resources + **/ +void txgbe_free_rx_resources(struct txgbe_ring *rx_ring) +{ + txgbe_clean_rx_ring(rx_ring); + + vfree(rx_ring->rx_buffer_info); + rx_ring->rx_buffer_info = NULL; + + /* if not set, then don't free */ + if (!rx_ring->desc) + return; + + dma_free_coherent(rx_ring->dev, rx_ring->size, + rx_ring->desc, rx_ring->dma); + + rx_ring->desc = NULL; +} + +/** + * txgbe_free_all_rx_resources - Free Rx Resources for All Queues + * @adapter: board private structure + * + * Free all receive software resources + **/ +static void txgbe_free_all_rx_resources(struct txgbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + txgbe_free_rx_resources(adapter->rx_ring[i]); +} + +/** + * txgbe_change_mtu - Change the Maximum Transfer Unit + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + **/ +static int txgbe_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + if ((new_mtu < 68) || (new_mtu > 9414)) + return -EINVAL; + + /* + * we cannot allow legacy VFs to enable their receive + * paths when MTU greater than 1500 is configured. So display a + * warning that legacy VFs will be disabled. + */ + if ((adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) && + (new_mtu > ETH_DATA_LEN)) + e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n"); + + e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); + + /* must set new MTU before calling down or up */ + netdev->mtu = new_mtu; + + if (netif_running(netdev)) + txgbe_reinit_locked(adapter); + + return 0; +} + +/** + * txgbe_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + **/ +int txgbe_open(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + int err; + + /*special for backplane flow*/ + adapter->flags2 &= ~TXGBE_FLAG2_KR_PRO_DOWN; + + /* disallow open during test */ + if (test_bit(__TXGBE_TESTING, &adapter->state)) + return -EBUSY; + + netif_carrier_off(netdev); + + /* allocate transmit descriptors */ + err = txgbe_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* allocate receive descriptors */ + err = txgbe_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + + err = txgbe_setup_isb_resources(adapter); + if (err) + goto err_req_isb; + + txgbe_configure(adapter); + + err = txgbe_request_irq(adapter); + if (err) + goto err_req_irq; + + /* Notify the stack of the actual queue counts. */ + err = netif_set_real_num_tx_queues(netdev, adapter->num_vmdqs > 1 + ? adapter->queues_per_pool + : adapter->num_tx_queues); + if (err) + goto err_set_queues; + + err = netif_set_real_num_rx_queues(netdev, adapter->num_vmdqs > 1 + ? adapter->queues_per_pool + : adapter->num_rx_queues); + if (err) + goto err_set_queues; + + txgbe_ptp_init(adapter); + + txgbe_up_complete(adapter); + + txgbe_clear_vxlan_port(adapter); + udp_tunnel_get_rx_info(netdev); + + return 0; + +err_set_queues: + txgbe_free_irq(adapter); +err_req_irq: + txgbe_free_isb_resources(adapter); +err_req_isb: + txgbe_free_all_rx_resources(adapter); + +err_setup_rx: + txgbe_free_all_tx_resources(adapter); +err_setup_tx: + txgbe_reset(adapter); + + return err; +} + +/** + * txgbe_close_suspend - actions necessary to both suspend and close flows + * @adapter: the private adapter struct + * + * This function should contain the necessary work common to both suspending + * and closing of the device. + */ +static void txgbe_close_suspend(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + + txgbe_ptp_suspend(adapter); + + txgbe_disable_device(adapter); + if (!((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP)) + TCALL(hw, mac.ops.disable_tx_laser); + txgbe_clean_all_tx_rings(adapter); + txgbe_clean_all_rx_rings(adapter); + + txgbe_free_irq(adapter); + + txgbe_free_isb_resources(adapter); + txgbe_free_all_rx_resources(adapter); + txgbe_free_all_tx_resources(adapter); +} + +/** + * txgbe_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + **/ +int txgbe_close(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + + if (hw->subsystem_device_id == TXGBE_ID_WX1820_KR_KX_KX4 || + hw->subsystem_device_id == TXGBE_ID_SP1000_KR_KX_KX4) { + txgbe_bp_close_protect(adapter); + } + + txgbe_ptp_stop(adapter); + + txgbe_down(adapter); + txgbe_free_irq(adapter); + + txgbe_free_isb_resources(adapter); + txgbe_free_all_rx_resources(adapter); + txgbe_free_all_tx_resources(adapter); + + txgbe_fdir_filter_exit(adapter); + + txgbe_release_hw_control(adapter); + + return 0; +} + +#ifdef CONFIG_PM +static int txgbe_resume(struct pci_dev *pdev) +{ + struct txgbe_adapter *adapter; + struct net_device *netdev; + u32 err; + + adapter = pci_get_drvdata(pdev); + netdev = adapter->netdev; + adapter->hw.hw_addr = adapter->io_addr; + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + /* + * pci_restore_state clears dev->state_saved so call + * pci_save_state to restore it. + */ + pci_save_state(pdev); + + err = pci_enable_device_mem(pdev); + if (err) { + e_dev_err("Cannot enable PCI device from suspend\n"); + return err; + } + smp_mb__before_atomic(); + clear_bit(__TXGBE_DISABLED, &adapter->state); + pci_set_master(pdev); + + pci_wake_from_d3(pdev, false); + + txgbe_reset(adapter); + + rtnl_lock(); + + err = txgbe_init_interrupt_scheme(adapter); + if (!err && netif_running(netdev)) + err = txgbe_open(netdev); + + rtnl_unlock(); + + if (err) + return err; + + netif_device_attach(netdev); + + return 0; +} +#endif /* CONFIG_PM */ +/* + * __txgbe_shutdown is not used when power management + * is disabled on older kernels (<2.6.12). causes a compile + * warning/error, because it is defined and not used. + */ +static int __txgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) +{ + struct txgbe_adapter *adapter = pci_get_drvdata(pdev); + struct net_device *netdev = adapter->netdev; + struct txgbe_hw *hw = &adapter->hw; + u32 wufc = adapter->wol; +#ifdef CONFIG_PM + int retval = 0; +#endif + + netif_device_detach(netdev); + + rtnl_lock(); + if (netif_running(netdev)) + txgbe_close_suspend(adapter); + rtnl_unlock(); + + txgbe_clear_interrupt_scheme(adapter); + +#ifdef CONFIG_PM + retval = pci_save_state(pdev); + if (retval) + return retval; +#endif + + /* this won't stop link of managebility or WoL is enabled */ + txgbe_stop_mac_link_on_d3(hw); + + if (wufc) { + txgbe_set_rx_mode(netdev); + txgbe_configure_rx(adapter); + /* enable the optics for SFP+ fiber as we can WoL */ + TCALL(hw, mac.ops.enable_tx_laser); + + /* turn on all-multi mode if wake on multicast is enabled */ + if (wufc & TXGBE_PSR_WKUP_CTL_MC) { + wr32m(hw, TXGBE_PSR_CTL, + TXGBE_PSR_CTL_MPE, TXGBE_PSR_CTL_MPE); + } + + pci_clear_master(adapter->pdev); + wr32(hw, TXGBE_PSR_WKUP_CTL, wufc); + } else { + wr32(hw, TXGBE_PSR_WKUP_CTL, 0); + } + + pci_wake_from_d3(pdev, !!wufc); + + *enable_wake = !!wufc; + txgbe_release_hw_control(adapter); + + if (!test_and_set_bit(__TXGBE_DISABLED, &adapter->state)) + pci_disable_device(pdev); + + return 0; +} + +#ifdef CONFIG_PM +static int txgbe_suspend(struct pci_dev *pdev, + pm_message_t __always_unused state) +{ + int retval; + bool wake; + + retval = __txgbe_shutdown(pdev, &wake); + if (retval) + return retval; + + if (wake) { + pci_prepare_to_sleep(pdev); + } else { + pci_wake_from_d3(pdev, false); + pci_set_power_state(pdev, PCI_D3hot); + } + + return 0; +} +#endif /* CONFIG_PM */ + +static void txgbe_shutdown(struct pci_dev *pdev) +{ + bool wake; + + __txgbe_shutdown(pdev, &wake); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, wake); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +/** + * txgbe_get_stats64 - Get System Network Statistics + * @netdev: network interface device structure + * @stats: storage space for 64bit statistics + * + * Returns 64bit statistics, for use in the ndo_get_stats64 callback. This + * function replaces txgbe_get_stats for kernels which support it. + */ +static void txgbe_get_stats64(struct net_device *netdev, + struct rtnl_link_stats64 *stats) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + int i; + + rcu_read_lock(); + for (i = 0; i < adapter->num_rx_queues; i++) { + struct txgbe_ring *ring = READ_ONCE(adapter->rx_ring[i]); + u64 bytes, packets; + unsigned int start; + + if (ring) { + do { + start = u64_stats_fetch_begin_irq(&ring->syncp); + packets = ring->stats.packets; + bytes = ring->stats.bytes; + } while (u64_stats_fetch_retry_irq(&ring->syncp, + start)); + stats->rx_packets += packets; + stats->rx_bytes += bytes; + } + } + + for (i = 0; i < adapter->num_tx_queues; i++) { + struct txgbe_ring *ring = READ_ONCE(adapter->tx_ring[i]); + u64 bytes, packets; + unsigned int start; + + if (ring) { + do { + start = u64_stats_fetch_begin_irq(&ring->syncp); + packets = ring->stats.packets; + bytes = ring->stats.bytes; + } while (u64_stats_fetch_retry_irq(&ring->syncp, + start)); + stats->tx_packets += packets; + stats->tx_bytes += bytes; + } + } + rcu_read_unlock(); + /* following stats updated by txgbe_watchdog_task() */ + stats->multicast = netdev->stats.multicast; + stats->rx_errors = netdev->stats.rx_errors; + stats->rx_length_errors = netdev->stats.rx_length_errors; + stats->rx_crc_errors = netdev->stats.rx_crc_errors; + stats->rx_missed_errors = netdev->stats.rx_missed_errors; +} + +/** + * txgbe_update_stats - Update the board statistics counters. + * @adapter: board private structure + **/ +void txgbe_update_stats(struct txgbe_adapter *adapter) +{ + struct net_device_stats *net_stats = &adapter->netdev->stats; + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_hw_stats *hwstats = &adapter->stats; + u64 total_mpc = 0; + u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff; + u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; + u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; + u64 bytes = 0, packets = 0, hw_csum_rx_error = 0; + u64 hw_csum_rx_good = 0; + + if (test_bit(__TXGBE_DOWN, &adapter->state) || + test_bit(__TXGBE_RESETTING, &adapter->state)) + return; + + if (adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED) { + u64 rsc_count = 0; + u64 rsc_flush = 0; + for (i = 0; i < adapter->num_rx_queues; i++) { + rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; + rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; + } + adapter->rsc_total_count = rsc_count; + adapter->rsc_total_flush = rsc_flush; + } + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct txgbe_ring *rx_ring = adapter->rx_ring[i]; + non_eop_descs += rx_ring->rx_stats.non_eop_descs; + alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; + alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; + hw_csum_rx_error += rx_ring->rx_stats.csum_err; + hw_csum_rx_good += rx_ring->rx_stats.csum_good_cnt; + bytes += rx_ring->stats.bytes; + packets += rx_ring->stats.packets; + + } + adapter->non_eop_descs = non_eop_descs; + adapter->alloc_rx_page_failed = alloc_rx_page_failed; + adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; + adapter->hw_csum_rx_error = hw_csum_rx_error; + adapter->hw_csum_rx_good = hw_csum_rx_good; + net_stats->rx_bytes = bytes; + net_stats->rx_packets = packets; + + bytes = 0; + packets = 0; + /* gather some stats to the adapter struct that are per queue */ + for (i = 0; i < adapter->num_tx_queues; i++) { + struct txgbe_ring *tx_ring = adapter->tx_ring[i]; + restart_queue += tx_ring->tx_stats.restart_queue; + tx_busy += tx_ring->tx_stats.tx_busy; + bytes += tx_ring->stats.bytes; + packets += tx_ring->stats.packets; + } + adapter->restart_queue = restart_queue; + adapter->tx_busy = tx_busy; + net_stats->tx_bytes = bytes; + net_stats->tx_packets = packets; + + hwstats->crcerrs += rd32(hw, TXGBE_RX_CRC_ERROR_FRAMES_LOW); + + /* 8 register reads */ + for (i = 0; i < 8; i++) { + /* for packet buffers not used, the register should read 0 */ + mpc = rd32(hw, TXGBE_RDB_MPCNT(i)); + missed_rx += mpc; + hwstats->mpc[i] += mpc; + total_mpc += hwstats->mpc[i]; + hwstats->pxontxc[i] += rd32(hw, TXGBE_RDB_PXONTXC(i)); + hwstats->pxofftxc[i] += + rd32(hw, TXGBE_RDB_PXOFFTXC(i)); + hwstats->pxonrxc[i] += rd32(hw, TXGBE_MAC_PXONRXC(i)); + } + + hwstats->gprc += rd32(hw, TXGBE_PX_GPRC); + + txgbe_update_xoff_received(adapter); + + hwstats->o2bgptc += rd32(hw, TXGBE_TDM_OS2BMC_CNT); + if (txgbe_check_mng_access(&adapter->hw)) { + hwstats->o2bspc += rd32(hw, TXGBE_MNG_OS2BMC_CNT); + hwstats->b2ospc += rd32(hw, TXGBE_MNG_BMC2OS_CNT); + } + hwstats->b2ogprc += rd32(hw, TXGBE_RDM_BMC2OS_CNT); + hwstats->gorc += rd32(hw, TXGBE_PX_GORC_LSB); + hwstats->gorc += (u64)rd32(hw, TXGBE_PX_GORC_MSB) << 32; + + hwstats->gotc += rd32(hw, TXGBE_PX_GOTC_LSB); + hwstats->gotc += (u64)rd32(hw, TXGBE_PX_GOTC_MSB) << 32; + + + adapter->hw_rx_no_dma_resources += + rd32(hw, TXGBE_RDM_DRP_PKT); + hwstats->lxonrxc += rd32(hw, TXGBE_MAC_LXONRXC); + + hwstats->fdirmatch += rd32(hw, TXGBE_RDB_FDIR_MATCH); + hwstats->fdirmiss += rd32(hw, TXGBE_RDB_FDIR_MISS); + + bprc = rd32(hw, TXGBE_RX_BC_FRAMES_GOOD_LOW); + hwstats->bprc += bprc; + hwstats->mprc = 0; + + for (i = 0; i < 128; i++) + hwstats->mprc += rd32(hw, TXGBE_PX_MPRC(i)); + + + hwstats->roc += rd32(hw, TXGBE_RX_OVERSIZE_FRAMES_GOOD); + hwstats->rlec += rd32(hw, TXGBE_RX_LEN_ERROR_FRAMES_LOW); + lxon = rd32(hw, TXGBE_RDB_LXONTXC); + hwstats->lxontxc += lxon; + lxoff = rd32(hw, TXGBE_RDB_LXOFFTXC); + hwstats->lxofftxc += lxoff; + + hwstats->gptc += rd32(hw, TXGBE_PX_GPTC); + hwstats->mptc += rd32(hw, TXGBE_TX_MC_FRAMES_GOOD_LOW); + hwstats->ruc += rd32(hw, TXGBE_RX_UNDERSIZE_FRAMES_GOOD); + hwstats->tpr += rd32(hw, TXGBE_RX_FRAME_CNT_GOOD_BAD_LOW); + hwstats->bptc += rd32(hw, TXGBE_TX_BC_FRAMES_GOOD_LOW); + /* Fill out the OS statistics structure */ + net_stats->multicast = hwstats->mprc; + + /* Rx Errors */ + net_stats->rx_errors = hwstats->crcerrs + + hwstats->rlec; + net_stats->rx_dropped = 0; + net_stats->rx_length_errors = hwstats->rlec; + net_stats->rx_crc_errors = hwstats->crcerrs; + net_stats->rx_missed_errors = total_mpc; + + /* + * VF Stats Collection - skip while resetting because these + * are not clear on read and otherwise you'll sometimes get + * crazy values. + */ + if (!test_bit(__TXGBE_RESETTING, &adapter->state)) { + for (i = 0; i < adapter->num_vfs; i++) { + UPDATE_VF_COUNTER_32bit(TXGBE_VX_GPRC(i), \ + adapter->vfinfo[i].last_vfstats.gprc, \ + adapter->vfinfo[i].vfstats.gprc); + UPDATE_VF_COUNTER_32bit(TXGBE_VX_GPTC(i), \ + adapter->vfinfo[i].last_vfstats.gptc, \ + adapter->vfinfo[i].vfstats.gptc); + UPDATE_VF_COUNTER_36bit(TXGBE_VX_GORC_LSB(i), \ + TXGBE_VX_GORC_MSB(i), \ + adapter->vfinfo[i].last_vfstats.gorc, \ + adapter->vfinfo[i].vfstats.gorc); + UPDATE_VF_COUNTER_36bit(TXGBE_VX_GOTC_LSB(i), \ + TXGBE_VX_GOTC_MSB(i), \ + adapter->vfinfo[i].last_vfstats.gotc, \ + adapter->vfinfo[i].vfstats.gotc); + UPDATE_VF_COUNTER_32bit(TXGBE_VX_MPRC(i), \ + adapter->vfinfo[i].last_vfstats.mprc, \ + adapter->vfinfo[i].vfstats.mprc); + } + } +} + +/** + * txgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table + * @adapter - pointer to the device adapter structure + **/ +static void txgbe_fdir_reinit_subtask(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + int i; + + if (!(adapter->flags2 & TXGBE_FLAG2_FDIR_REQUIRES_REINIT)) + return; + + adapter->flags2 &= ~TXGBE_FLAG2_FDIR_REQUIRES_REINIT; + + /* if interface is down do nothing */ + if (test_bit(__TXGBE_DOWN, &adapter->state)) + return; + + /* do nothing if we are not using signature filters */ + if (!(adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE)) + return; + + adapter->fdir_overflow++; + + if (txgbe_reinit_fdir_tables(hw) == 0) { + for (i = 0; i < adapter->num_tx_queues; i++) + set_bit(__TXGBE_TX_FDIR_INIT_DONE, + &(adapter->tx_ring[i]->state)); + /* re-enable flow director interrupts */ + wr32m(hw, TXGBE_PX_MISC_IEN, + TXGBE_PX_MISC_IEN_FLOW_DIR, TXGBE_PX_MISC_IEN_FLOW_DIR); + } else { + e_err(probe, "failed to finish FDIR re-initialization, " + "ignored adding FDIR ATR filters\n"); + } +} + +/** + * txgbe_check_hang_subtask - check for hung queues and dropped interrupts + * @adapter - pointer to the device adapter structure + * + * This function serves two purposes. First it strobes the interrupt lines + * in order to make certain interrupts are occurring. Secondly it sets the + * bits needed to check for TX hangs. As a result we should immediately + * determine if a hang has occurred. + */ +static void txgbe_check_hang_subtask(struct txgbe_adapter *adapter) +{ + int i; + + /* If we're down or resetting, just bail */ + if (test_bit(__TXGBE_DOWN, &adapter->state) || + test_bit(__TXGBE_REMOVING, &adapter->state) || + test_bit(__TXGBE_RESETTING, &adapter->state)) + return; + + /* Force detection of hung controller */ + if (netif_carrier_ok(adapter->netdev)) { + for (i = 0; i < adapter->num_tx_queues; i++) + set_check_for_tx_hang(adapter->tx_ring[i]); + } + +} + +/** + * txgbe_watchdog_update_link - update the link status + * @adapter - pointer to the device adapter structure + * @link_speed - pointer to a u32 to store the link_speed + **/ +static void txgbe_watchdog_update_link(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 link_speed = adapter->link_speed; + bool link_up = adapter->link_up; +// bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; + u32 reg; + u32 i = 1; + + if (!(adapter->flags & TXGBE_FLAG_NEED_LINK_UPDATE)) + return; + + link_speed = TXGBE_LINK_SPEED_10GB_FULL; + link_up = true; + TCALL(hw, mac.ops.check_link, &link_speed, &link_up, false); + + if (link_up || time_after(jiffies, (adapter->link_check_timeout + + TXGBE_TRY_LINK_TIMEOUT))) { + adapter->flags &= ~TXGBE_FLAG_NEED_LINK_UPDATE; + } + + for (i = 0; i < 3; i++) { + TCALL(hw, mac.ops.check_link, &link_speed, &link_up, false); + msleep(1); + } + + if (link_up && !((adapter->flags & TXGBE_FLAG_DCB_ENABLED))) { + TCALL(hw, mac.ops.fc_enable); + txgbe_set_rx_drop_en(adapter); + } + + if (link_up) { + adapter->last_rx_ptp_check = jiffies; + + if (test_bit(__TXGBE_PTP_RUNNING, &adapter->state)) + txgbe_ptp_start_cyclecounter(adapter); + + if (link_speed & TXGBE_LINK_SPEED_10GB_FULL) { + wr32(hw, TXGBE_MAC_TX_CFG, + (rd32(hw, TXGBE_MAC_TX_CFG) & + ~TXGBE_MAC_TX_CFG_SPEED_MASK) | TXGBE_MAC_TX_CFG_TE | + TXGBE_MAC_TX_CFG_SPEED_10G); + } else if (link_speed & (TXGBE_LINK_SPEED_1GB_FULL | + TXGBE_LINK_SPEED_100_FULL | TXGBE_LINK_SPEED_10_FULL)) { + wr32(hw, TXGBE_MAC_TX_CFG, + (rd32(hw, TXGBE_MAC_TX_CFG) & + ~TXGBE_MAC_TX_CFG_SPEED_MASK) | TXGBE_MAC_TX_CFG_TE | + TXGBE_MAC_TX_CFG_SPEED_1G); + } + + /* Re configure MAC RX */ + reg = rd32(hw, TXGBE_MAC_RX_CFG); + wr32(hw, TXGBE_MAC_RX_CFG, reg); + wr32(hw, TXGBE_MAC_PKT_FLT, TXGBE_MAC_PKT_FLT_PR); + reg = rd32(hw, TXGBE_MAC_WDG_TIMEOUT); + wr32(hw, TXGBE_MAC_WDG_TIMEOUT, reg); + } + + adapter->link_up = link_up; + adapter->link_speed = link_speed; + if (hw->mac.ops.dmac_config && hw->mac.dmac_config.watchdog_timer) { + u8 num_tcs = netdev_get_num_tc(adapter->netdev); + + if (hw->mac.dmac_config.link_speed != link_speed || + hw->mac.dmac_config.num_tcs != num_tcs) { + hw->mac.dmac_config.link_speed = link_speed; + hw->mac.dmac_config.num_tcs = num_tcs; + TCALL(hw, mac.ops.dmac_config); + } + } +} + +static void txgbe_update_default_up(struct txgbe_adapter *adapter) +{ + u8 up = 0; + + adapter->default_up = up; +} + +/** + * txgbe_watchdog_link_is_up - update netif_carrier status and + * print link up message + * @adapter - pointer to the device adapter structure + **/ +static void txgbe_watchdog_link_is_up(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct txgbe_hw *hw = &adapter->hw; + u32 link_speed = adapter->link_speed; + bool flow_rx, flow_tx; + + /* only continue if link was previously down */ + if (netif_carrier_ok(netdev)) + return; + + adapter->flags2 &= ~TXGBE_FLAG2_SEARCH_FOR_SFP; + + /* flow_rx, flow_tx report link flow control status */ + flow_rx = (rd32(hw, TXGBE_MAC_RX_FLOW_CTRL) & 0x101) == 0x1; + flow_tx = !!(TXGBE_RDB_RFCC_RFCE_802_3X & + rd32(hw, TXGBE_RDB_RFCC)); + + e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", + (link_speed == TXGBE_LINK_SPEED_10GB_FULL ? + "10 Gbps" : + (link_speed == TXGBE_LINK_SPEED_1GB_FULL ? + "1 Gbps" : + (link_speed == TXGBE_LINK_SPEED_100_FULL ? + "100 Mbps" : + (link_speed == TXGBE_LINK_SPEED_10_FULL ? + "10 Mbps" : + "unknown speed")))), + ((flow_rx && flow_tx) ? "RX/TX" : + (flow_rx ? "RX" : + (flow_tx ? "TX" : "None")))); + + netif_carrier_on(netdev); + netif_tx_wake_all_queues(netdev); + + /* update the default user priority for VFs */ + txgbe_update_default_up(adapter); + + /* ping all the active vfs to let them know link has changed */ +} + +/** + * txgbe_watchdog_link_is_down - update netif_carrier status and + * print link down message + * @adapter - pointer to the adapter structure + **/ +static void txgbe_watchdog_link_is_down(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct txgbe_hw *hw = &adapter->hw; + adapter->link_up = false; + adapter->link_speed = 0; + + /* only continue if link was up previously */ + if (!netif_carrier_ok(netdev)) + return; + + if (hw->subsystem_device_id == TXGBE_ID_WX1820_KR_KX_KX4 || + hw->subsystem_device_id == TXGBE_ID_SP1000_KR_KX_KX4) { + txgbe_bp_down_event(adapter); + } + + if (test_bit(__TXGBE_PTP_RUNNING, &adapter->state)) + txgbe_ptp_start_cyclecounter(adapter); + + e_info(drv, "NIC Link is Down\n"); + netif_carrier_off(netdev); + netif_tx_stop_all_queues(netdev); + + /* ping all the active vfs to let them know link has changed */ + +} + +static bool txgbe_ring_tx_pending(struct txgbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) { + struct txgbe_ring *tx_ring = adapter->tx_ring[i]; + + if (tx_ring->next_to_use != tx_ring->next_to_clean) + return true; + } + + return false; +} + +static bool txgbe_vf_tx_pending(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); + + u32 i, j; + + if (!adapter->num_vfs) + return false; + + for (i = 0; i < adapter->num_vfs; i++) { + for (j = 0; j < q_per_pool; j++) { + u32 h, t; + + h = rd32(hw, + TXGBE_PX_TR_RPn(q_per_pool, i, j)); + t = rd32(hw, + TXGBE_PX_TR_WPn(q_per_pool, i, j)); + + if (h != t) + return true; + } + } + + return false; +} + +/** + * txgbe_watchdog_flush_tx - flush queues on link down + * @adapter - pointer to the device adapter structure + **/ +static void txgbe_watchdog_flush_tx(struct txgbe_adapter *adapter) +{ + if (!netif_carrier_ok(adapter->netdev)) { + if (txgbe_ring_tx_pending(adapter) || + txgbe_vf_tx_pending(adapter)) { + /* We've lost link, so the controller stops DMA, + * but we've got queued Tx work that's never going + * to get done, so reset controller to flush Tx. + * (Do the reset outside of interrupt context). + */ + e_warn(drv, "initiating reset due to lost link with " + "pending Tx work\n"); + adapter->flags2 |= TXGBE_FLAG2_PF_RESET_REQUESTED; + } + } +} + +/** + * txgbe_watchdog_subtask - check and bring link up + * @adapter - pointer to the device adapter structure + **/ +static void txgbe_watchdog_subtask(struct txgbe_adapter *adapter) +{ + u32 value = 0; + struct txgbe_hw *hw = &adapter->hw; + + /* if interface is down do nothing */ + if (test_bit(__TXGBE_DOWN, &adapter->state) || + test_bit(__TXGBE_REMOVING, &adapter->state) || + test_bit(__TXGBE_RESETTING, &adapter->state)) + return; + + if (hw->subsystem_device_id == TXGBE_ID_WX1820_KR_KX_KX4 || + hw->subsystem_device_id == TXGBE_ID_SP1000_KR_KX_KX4) { + txgbe_bp_watchdog_event(adapter); + } + + if (BOND_CHECK_LINK_MODE == 1) { + value = rd32(hw, 0x14404); + value = value & 0x1; + if (value == 1) + adapter->flags |= TXGBE_FLAG_NEED_LINK_UPDATE; + } + if (!(adapter->flags2 & TXGBE_FLAG2_LINK_DOWN)) + txgbe_watchdog_update_link(adapter); + + if (adapter->link_up) + txgbe_watchdog_link_is_up(adapter); + else + txgbe_watchdog_link_is_down(adapter); + + txgbe_update_stats(adapter); + + txgbe_watchdog_flush_tx(adapter); +} + +/** + * txgbe_sfp_detection_subtask - poll for SFP+ cable + * @adapter - the txgbe adapter structure + **/ +static void txgbe_sfp_detection_subtask(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_mac_info *mac = &hw->mac; + s32 err; + + /* not searching for SFP so there is nothing to do here */ + if (!(adapter->flags2 & TXGBE_FLAG2_SEARCH_FOR_SFP) && + !(adapter->flags2 & TXGBE_FLAG2_SFP_NEEDS_RESET)) + return; + + if (adapter->sfp_poll_time && + time_after(adapter->sfp_poll_time, jiffies)) + return; /* If not yet time to poll for SFP */ + + /* someone else is in init, wait until next service event */ + if (test_and_set_bit(__TXGBE_IN_SFP_INIT, &adapter->state)) + return; + + adapter->sfp_poll_time = jiffies + TXGBE_SFP_POLL_JIFFIES - 1; + + err = TCALL(hw, phy.ops.identify_sfp); + if (err == TXGBE_ERR_SFP_NOT_SUPPORTED) + goto sfp_out; + + if (err == TXGBE_ERR_SFP_NOT_PRESENT) { + /* If no cable is present, then we need to reset + * the next time we find a good cable. */ + adapter->flags2 |= TXGBE_FLAG2_SFP_NEEDS_RESET; + } + + /* exit on error */ + if (err) + goto sfp_out; + + /* exit if reset not needed */ + if (!(adapter->flags2 & TXGBE_FLAG2_SFP_NEEDS_RESET)) + goto sfp_out; + + adapter->flags2 &= ~TXGBE_FLAG2_SFP_NEEDS_RESET; + + if (hw->phy.multispeed_fiber) { + /* Set up dual speed SFP+ support */ + mac->ops.setup_link = txgbe_setup_mac_link_multispeed_fiber; + mac->ops.setup_mac_link = txgbe_setup_mac_link; + mac->ops.set_rate_select_speed = + txgbe_set_hard_rate_select_speed; + } else { + mac->ops.setup_link = txgbe_setup_mac_link; + mac->ops.set_rate_select_speed = + txgbe_set_hard_rate_select_speed; + hw->phy.autoneg_advertised = 0; + } + + adapter->flags |= TXGBE_FLAG_NEED_LINK_CONFIG; + e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); + +sfp_out: + clear_bit(__TXGBE_IN_SFP_INIT, &adapter->state); + + if ((err == TXGBE_ERR_SFP_NOT_SUPPORTED) && + adapter->netdev_registered) { + e_dev_err("failed to initialize because an unsupported " + "SFP+ module type was detected.\n"); + } +} + +/** + * txgbe_sfp_link_config_subtask - set up link SFP after module install + * @adapter - the txgbe adapter structure + **/ +static void txgbe_sfp_link_config_subtask(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 speed; + bool autoneg = false; + u16 value; + u8 device_type = hw->subsystem_id & 0xF0; + + if (!(adapter->flags & TXGBE_FLAG_NEED_LINK_CONFIG)) + return; + + /* someone else is in init, wait until next service event */ + if (test_and_set_bit(__TXGBE_IN_SFP_INIT, &adapter->state)) + return; + + adapter->flags &= ~TXGBE_FLAG_NEED_LINK_CONFIG; + + if (device_type == TXGBE_ID_XAUI) { + /* clear ext phy int status */ + txgbe_read_mdio(&hw->phy_dev, hw->phy.addr, 0x03, 0x8011, &value); + if (value & 0x400) + adapter->flags |= TXGBE_FLAG_NEED_LINK_UPDATE; + if (!(value & 0x800)) { + clear_bit(__TXGBE_IN_SFP_INIT, &adapter->state); + return; + } + } + + if (device_type == TXGBE_ID_MAC_XAUI || + (txgbe_get_media_type(hw) == txgbe_media_type_copper && + device_type == TXGBE_ID_SFI_XAUI)) { + speed = TXGBE_LINK_SPEED_10GB_FULL; + } else if (device_type == TXGBE_ID_MAC_SGMII) { + speed = TXGBE_LINK_SPEED_1GB_FULL; + } else { + speed = hw->phy.autoneg_advertised; + if ((!speed) && (hw->mac.ops.get_link_capabilities)) { + TCALL(hw, mac.ops.get_link_capabilities, &speed, &autoneg); + /* setup the highest link when no autoneg */ + if (!autoneg) { + if (speed & TXGBE_LINK_SPEED_10GB_FULL) + speed = TXGBE_LINK_SPEED_10GB_FULL; + } + } + } + + TCALL(hw, mac.ops.setup_link, speed, txgbe_is_sfp(hw)); + + adapter->flags |= TXGBE_FLAG_NEED_LINK_UPDATE; + adapter->link_check_timeout = jiffies; + clear_bit(__TXGBE_IN_SFP_INIT, &adapter->state); +} + +static void txgbe_sfp_reset_eth_phy_subtask(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 speed; + bool linkup = true; + u32 i = 0; + + if (!(adapter->flags2 & TXGBE_FLAG_NEED_ETH_PHY_RESET)) + return; + + adapter->flags2 &= ~TXGBE_FLAG_NEED_ETH_PHY_RESET; + + TCALL(hw, mac.ops.check_link, &speed, &linkup, false); + if (!linkup) { + txgbe_wr32_epcs(hw, TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1, + 0xA000); + /* wait phy initialization done */ + for (i = 0; i < TXGBE_PHY_INIT_DONE_POLLING_TIME; i++) { + if ((txgbe_rd32_epcs(hw, + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1) & + TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST) == 0) + break; + msleep(100); + } + } +} + +/** + * txgbe_service_timer - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ +static void txgbe_service_timer(struct timer_list *t) +{ + struct txgbe_adapter *adapter = from_timer(adapter, t, service_timer); + unsigned long next_event_offset; + struct txgbe_hw *hw = &adapter->hw; + + /* poll faster when waiting for link */ + if (adapter->flags & TXGBE_FLAG_NEED_LINK_UPDATE) { + if ((hw->subsystem_device_id & 0xF0) == TXGBE_ID_KR_KX_KX4) + next_event_offset = HZ; + else if (BOND_CHECK_LINK_MODE == 1) + next_event_offset = HZ / 100; + else + next_event_offset = HZ / 10; + } else + next_event_offset = HZ * 2; + + if ((rd32(&adapter->hw, TXGBE_MIS_PF_SM) == 1) && (hw->bus.lan_id)) { + adapter->flags2 |= TXGBE_FLAG2_PCIE_NEED_RECOVER; + } + + /* Reset the timer */ + mod_timer(&adapter->service_timer, next_event_offset + jiffies); + + txgbe_service_event_schedule(adapter); +} + +static void txgbe_reset_subtask(struct txgbe_adapter *adapter) +{ + u32 reset_flag = 0; + u32 value = 0; + + if (!(adapter->flags2 & (TXGBE_FLAG2_PF_RESET_REQUESTED | + TXGBE_FLAG2_DEV_RESET_REQUESTED | + TXGBE_FLAG2_GLOBAL_RESET_REQUESTED | + TXGBE_FLAG2_RESET_INTR_RECEIVED))) + return; + + /* If we're already down, just bail */ + if (test_bit(__TXGBE_DOWN, &adapter->state) || + test_bit(__TXGBE_REMOVING, &adapter->state)) + return; + + netdev_err(adapter->netdev, "Reset adapter\n"); + adapter->tx_timeout_count++; + + rtnl_lock(); + if (adapter->flags2 & TXGBE_FLAG2_GLOBAL_RESET_REQUESTED) { + reset_flag |= TXGBE_FLAG2_GLOBAL_RESET_REQUESTED; + adapter->flags2 &= ~TXGBE_FLAG2_GLOBAL_RESET_REQUESTED; + } + if (adapter->flags2 & TXGBE_FLAG2_DEV_RESET_REQUESTED) { + reset_flag |= TXGBE_FLAG2_DEV_RESET_REQUESTED; + adapter->flags2 &= ~TXGBE_FLAG2_DEV_RESET_REQUESTED; + } + if (adapter->flags2 & TXGBE_FLAG2_PF_RESET_REQUESTED) { + reset_flag |= TXGBE_FLAG2_PF_RESET_REQUESTED; + adapter->flags2 &= ~TXGBE_FLAG2_PF_RESET_REQUESTED; + } + + if (adapter->flags2 & TXGBE_FLAG2_RESET_INTR_RECEIVED) { + /* If there's a recovery already waiting, it takes + * precedence before starting a new reset sequence. + */ + adapter->flags2 &= ~TXGBE_FLAG2_RESET_INTR_RECEIVED; + value = rd32m(&adapter->hw, TXGBE_MIS_RST_ST, + TXGBE_MIS_RST_ST_DEV_RST_TYPE_MASK) >> + TXGBE_MIS_RST_ST_DEV_RST_TYPE_SHIFT; + if (value == TXGBE_MIS_RST_ST_DEV_RST_TYPE_SW_RST) { + adapter->hw.reset_type = TXGBE_SW_RESET; + /* errata 7 */ + if (txgbe_mng_present(&adapter->hw) && + adapter->hw.revision_id == TXGBE_SP_MPW) + adapter->flags2 |= + TXGBE_FLAG2_MNG_REG_ACCESS_DISABLED; + } else if (value == TXGBE_MIS_RST_ST_DEV_RST_TYPE_GLOBAL_RST) + adapter->hw.reset_type = TXGBE_GLOBAL_RESET; + adapter->hw.force_full_reset = true; + txgbe_reinit_locked(adapter); + adapter->hw.force_full_reset = false; + goto unlock; + } + + if (reset_flag & TXGBE_FLAG2_DEV_RESET_REQUESTED) { + /* Request a Device Reset + * + * This will start the chip's countdown to the actual full + * chip reset event, and a warning interrupt to be sent + * to all PFs, including the requestor. Our handler + * for the warning interrupt will deal with the shutdown + * and recovery of the switch setup. + */ + /*debug to up*/ + /*txgbe_dump(adapter);*/ + if (txgbe_mng_present(&adapter->hw)) { + txgbe_reset_hostif(&adapter->hw); + } else + wr32m(&adapter->hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_SW_RST, TXGBE_MIS_RST_SW_RST); + + } else if (reset_flag & TXGBE_FLAG2_PF_RESET_REQUESTED) { + /*debug to up*/ + txgbe_reinit_locked(adapter); + } else if (reset_flag & TXGBE_FLAG2_GLOBAL_RESET_REQUESTED) { + /* Request a Global Reset + * + * This will start the chip's countdown to the actual full + * chip reset event, and a warning interrupt to be sent + * to all PFs, including the requestor. Our handler + * for the warning interrupt will deal with the shutdown + * and recovery of the switch setup. + */ + /*debug to up*/ + pci_save_state(adapter->pdev); + if (txgbe_mng_present(&adapter->hw)) { + txgbe_reset_hostif(&adapter->hw); + } else + wr32m(&adapter->hw, TXGBE_MIS_RST, + TXGBE_MIS_RST_GLOBAL_RST, + TXGBE_MIS_RST_GLOBAL_RST); + + } + +unlock: + rtnl_unlock(); +} + +static void txgbe_check_pcie_subtask(struct txgbe_adapter *adapter) +{ + if (!(adapter->flags2 & TXGBE_FLAG2_PCIE_NEED_RECOVER)) + return; + + e_info(probe, "do recovery\n"); + wr32m(&adapter->hw, TXGBE_MIS_PF_SM, + TXGBE_MIS_PF_SM_SM, 0); + adapter->flags2 &= ~TXGBE_FLAG2_PCIE_NEED_RECOVER; +} + +/** + * txgbe_service_task - manages and runs subtasks + * @work: pointer to work_struct containing our data + **/ +static void txgbe_service_task(struct work_struct *work) +{ + struct txgbe_adapter *adapter = container_of(work, + struct txgbe_adapter, + service_task); + if (TXGBE_REMOVED(adapter->hw.hw_addr)) { + if (!test_bit(__TXGBE_DOWN, &adapter->state)) { + rtnl_lock(); + txgbe_down(adapter); + rtnl_unlock(); + } + txgbe_service_event_complete(adapter); + return; + } + + if (adapter->flags2 & TXGBE_FLAG2_VXLAN_REREG_NEEDED) { + adapter->flags2 &= ~TXGBE_FLAG2_VXLAN_REREG_NEEDED; + udp_tunnel_get_rx_info(adapter->netdev); + } + + txgbe_check_pcie_subtask(adapter); + txgbe_reset_subtask(adapter); + txgbe_sfp_detection_subtask(adapter); + txgbe_sfp_link_config_subtask(adapter); + txgbe_sfp_reset_eth_phy_subtask(adapter); + txgbe_check_overtemp_subtask(adapter); + txgbe_watchdog_subtask(adapter); + txgbe_fdir_reinit_subtask(adapter); + txgbe_check_hang_subtask(adapter); + if (test_bit(__TXGBE_PTP_RUNNING, &adapter->state)) { + txgbe_ptp_overflow_check(adapter); + if (unlikely(adapter->flags & + TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER)) + txgbe_ptp_rx_hang(adapter); + } + + txgbe_service_event_complete(adapter); +} + +static u8 get_ipv6_proto(struct sk_buff *skb, int offset) +{ + struct ipv6hdr *hdr = (struct ipv6hdr *)(skb->data + offset); + u8 nexthdr = hdr->nexthdr; + + offset += sizeof(struct ipv6hdr); + + while (ipv6_ext_hdr(nexthdr)) { + struct ipv6_opt_hdr _hdr, *hp; + + if (nexthdr == NEXTHDR_NONE) + break; + + hp = skb_header_pointer(skb, offset, sizeof(_hdr), &_hdr); + if (!hp) + break; + + if (nexthdr == NEXTHDR_FRAGMENT) { + break; + } else if (nexthdr == NEXTHDR_AUTH) { + offset += ipv6_authlen(hp); + } else { + offset += ipv6_optlen(hp); + } + + nexthdr = hp->nexthdr; + } + + return nexthdr; +} + +union network_header { + struct iphdr *ipv4; + struct ipv6hdr *ipv6; + void *raw; +}; + +static txgbe_dptype encode_tx_desc_ptype(const struct txgbe_tx_buffer *first) +{ + struct sk_buff *skb = first->skb; + + u8 tun_prot = 0; + + u8 l4_prot = 0; + u8 ptype = 0; + + if (skb->encapsulation) { + union network_header hdr; + + switch (first->protocol) { + case __constant_htons(ETH_P_IP): + tun_prot = ip_hdr(skb)->protocol; + if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) + goto encap_frag; + ptype = TXGBE_PTYPE_TUN_IPV4; + break; + case __constant_htons(ETH_P_IPV6): + tun_prot = get_ipv6_proto(skb, skb_network_offset(skb)); + if (tun_prot == NEXTHDR_FRAGMENT) + goto encap_frag; + ptype = TXGBE_PTYPE_TUN_IPV6; + break; + default: + goto exit; + } + + if (tun_prot == IPPROTO_IPIP) { + hdr.raw = (void *)inner_ip_hdr(skb); + ptype |= TXGBE_PTYPE_PKT_IPIP; + } else if (tun_prot == IPPROTO_UDP) { + hdr.raw = (void *)inner_ip_hdr(skb); + /* fixme: VXLAN-GPE neither ETHER nor IP */ + + if (skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB)) { + ptype |= TXGBE_PTYPE_PKT_IG; + } else { + if (((struct ethhdr *) + skb_inner_mac_header(skb))->h_proto + == htons(ETH_P_8021Q)) { + ptype |= TXGBE_PTYPE_PKT_IGMV; + } else { + ptype |= TXGBE_PTYPE_PKT_IGM; + } + } + + } else if (tun_prot == IPPROTO_GRE) { + hdr.raw = (void *)inner_ip_hdr(skb); + if (skb->inner_protocol == htons(ETH_P_IP) || + skb->inner_protocol == htons(ETH_P_IPV6)) { + ptype |= TXGBE_PTYPE_PKT_IG; + } else { + if (((struct ethhdr *) + skb_inner_mac_header(skb))->h_proto + == htons(ETH_P_8021Q)) { + ptype |= TXGBE_PTYPE_PKT_IGMV; + } else { + ptype |= TXGBE_PTYPE_PKT_IGM; + } + } + } else { + goto exit; + } + + switch (hdr.ipv4->version) { + case IPVERSION: + l4_prot = hdr.ipv4->protocol; + if (hdr.ipv4->frag_off & htons(IP_MF | IP_OFFSET)) { + ptype |= TXGBE_PTYPE_TYP_IPFRAG; + goto exit; + } + break; + case 6: + l4_prot = get_ipv6_proto(skb, + skb_inner_network_offset(skb)); + ptype |= TXGBE_PTYPE_PKT_IPV6; + if (l4_prot == NEXTHDR_FRAGMENT) { + ptype |= TXGBE_PTYPE_TYP_IPFRAG; + goto exit; + } + break; + default: + goto exit; + } + } else { +encap_frag: + + switch (first->protocol) { + case __constant_htons(ETH_P_IP): + l4_prot = ip_hdr(skb)->protocol; + ptype = TXGBE_PTYPE_PKT_IP; + if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) { + ptype |= TXGBE_PTYPE_TYP_IPFRAG; + goto exit; + } + break; +#ifdef NETIF_F_IPV6_CSUM + case __constant_htons(ETH_P_IPV6): + l4_prot = get_ipv6_proto(skb, skb_network_offset(skb)); + ptype = TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_PKT_IPV6; + if (l4_prot == NEXTHDR_FRAGMENT) { + ptype |= TXGBE_PTYPE_TYP_IPFRAG; + goto exit; + } + break; +#endif /* NETIF_F_IPV6_CSUM */ + case __constant_htons(ETH_P_1588): + ptype = TXGBE_PTYPE_L2_TS; + goto exit; + case __constant_htons(ETH_P_FIP): + ptype = TXGBE_PTYPE_L2_FIP; + goto exit; + case __constant_htons(TXGBE_ETH_P_LLDP): + ptype = TXGBE_PTYPE_L2_LLDP; + goto exit; + case __constant_htons(TXGBE_ETH_P_CNM): + ptype = TXGBE_PTYPE_L2_CNM; + goto exit; + case __constant_htons(ETH_P_PAE): + ptype = TXGBE_PTYPE_L2_EAPOL; + goto exit; + case __constant_htons(ETH_P_ARP): + ptype = TXGBE_PTYPE_L2_ARP; + goto exit; + default: + ptype = TXGBE_PTYPE_L2_MAC; + goto exit; + } + + } + + switch (l4_prot) { + case IPPROTO_TCP: + ptype |= TXGBE_PTYPE_TYP_TCP; + break; + case IPPROTO_UDP: + ptype |= TXGBE_PTYPE_TYP_UDP; + break; + case IPPROTO_SCTP: + ptype |= TXGBE_PTYPE_TYP_SCTP; + break; + default: + ptype |= TXGBE_PTYPE_TYP_IP; + break; + } + +exit: + return txgbe_decode_ptype(ptype); +} + +static int txgbe_tso(struct txgbe_ring *tx_ring, + struct txgbe_tx_buffer *first, + u8 *hdr_len, txgbe_dptype dptype) +{ + struct sk_buff *skb = first->skb; + u32 vlan_macip_lens, type_tucmd; + u32 mss_l4len_idx, l4len; + struct tcphdr *tcph; + struct iphdr *iph; + u32 tunhdr_eiplen_tunlen = 0; + + u8 tun_prot = 0; + bool enc = skb->encapsulation; + + struct ipv6hdr *ipv6h; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return 0; + + if (!skb_is_gso(skb)) + return 0; + + if (skb_header_cloned(skb)) { + int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (err) + return err; + } + + iph = enc ? inner_ip_hdr(skb) : ip_hdr(skb); + + if (iph->version == 4) { + + tcph = enc ? inner_tcp_hdr(skb) : tcp_hdr(skb); + + iph->tot_len = 0; + iph->check = 0; + tcph->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); + first->tx_flags |= TXGBE_TX_FLAGS_TSO | + TXGBE_TX_FLAGS_CSUM | + TXGBE_TX_FLAGS_IPV4 | + TXGBE_TX_FLAGS_CC; + + } else if (iph->version == 6 && skb_is_gso_v6(skb)) { + + ipv6h = enc ? inner_ipv6_hdr(skb) : ipv6_hdr(skb); + tcph = enc ? inner_tcp_hdr(skb) : tcp_hdr(skb); + + ipv6h->payload_len = 0; + tcph->check = + ~csum_ipv6_magic(&ipv6h->saddr, + &ipv6h->daddr, + 0, IPPROTO_TCP, 0); + first->tx_flags |= TXGBE_TX_FLAGS_TSO | + TXGBE_TX_FLAGS_CSUM | + TXGBE_TX_FLAGS_CC; + } + + /* compute header lengths */ + + l4len = enc ? inner_tcp_hdrlen(skb) : tcp_hdrlen(skb); + *hdr_len = enc ? (skb_inner_transport_header(skb) - skb->data) + : skb_transport_offset(skb); + *hdr_len += l4len; + + /* update gso size and bytecount with header size */ + first->gso_segs = skb_shinfo(skb)->gso_segs; + first->bytecount += (first->gso_segs - 1) * *hdr_len; + + /* mss_l4len_id: use 0 as index for TSO */ + mss_l4len_idx = l4len << TXGBE_TXD_L4LEN_SHIFT; + mss_l4len_idx |= skb_shinfo(skb)->gso_size << TXGBE_TXD_MSS_SHIFT; + + /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ + + if (enc) { + switch (first->protocol) { + case __constant_htons(ETH_P_IP): + tun_prot = ip_hdr(skb)->protocol; + first->tx_flags |= TXGBE_TX_FLAGS_OUTER_IPV4; + break; + case __constant_htons(ETH_P_IPV6): + tun_prot = ipv6_hdr(skb)->nexthdr; + break; + default: + break; + } + switch (tun_prot) { + case IPPROTO_UDP: + tunhdr_eiplen_tunlen = TXGBE_TXD_TUNNEL_UDP; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + TXGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + TXGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_GRE: + tunhdr_eiplen_tunlen = TXGBE_TXD_TUNNEL_GRE; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + TXGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + TXGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_IPIP: + tunhdr_eiplen_tunlen = (((char *)inner_ip_hdr(skb)- + (char *)ip_hdr(skb)) >> 2) << + TXGBE_TXD_OUTER_IPLEN_SHIFT; + break; + default: + break; + } + + vlan_macip_lens = skb_inner_network_header_len(skb) >> 1; + } else + vlan_macip_lens = skb_network_header_len(skb) >> 1; + + vlan_macip_lens |= skb_network_offset(skb) << TXGBE_TXD_MACLEN_SHIFT; + vlan_macip_lens |= first->tx_flags & TXGBE_TX_FLAGS_VLAN_MASK; + + type_tucmd = dptype.ptype << 24; + txgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, tunhdr_eiplen_tunlen, + type_tucmd, mss_l4len_idx); + + return 1; +} + +static void txgbe_tx_csum(struct txgbe_ring *tx_ring, + struct txgbe_tx_buffer *first, txgbe_dptype dptype) +{ + struct sk_buff *skb = first->skb; + u32 vlan_macip_lens = 0; + u32 mss_l4len_idx = 0; + u32 tunhdr_eiplen_tunlen = 0; + + u8 tun_prot = 0; + + u32 type_tucmd; + + if (skb->ip_summed != CHECKSUM_PARTIAL) { + if (!(first->tx_flags & TXGBE_TX_FLAGS_HW_VLAN) && + !(first->tx_flags & TXGBE_TX_FLAGS_CC)) + return; + vlan_macip_lens = skb_network_offset(skb) << + TXGBE_TXD_MACLEN_SHIFT; + } else { + u8 l4_prot = 0; + + union { + struct iphdr *ipv4; + struct ipv6hdr *ipv6; + u8 *raw; + } network_hdr; + union { + struct tcphdr *tcphdr; + u8 *raw; + } transport_hdr; + + if (skb->encapsulation) { + network_hdr.raw = skb_inner_network_header(skb); + transport_hdr.raw = skb_inner_transport_header(skb); + vlan_macip_lens = skb_network_offset(skb) << + TXGBE_TXD_MACLEN_SHIFT; + switch (first->protocol) { + case __constant_htons(ETH_P_IP): + tun_prot = ip_hdr(skb)->protocol; + break; + case __constant_htons(ETH_P_IPV6): + tun_prot = ipv6_hdr(skb)->nexthdr; + break; + default: + if (unlikely(net_ratelimit())) { + dev_warn(tx_ring->dev, + "partial checksum but version=%d\n", + network_hdr.ipv4->version); + } + return; + } + switch (tun_prot) { + case IPPROTO_UDP: + tunhdr_eiplen_tunlen = TXGBE_TXD_TUNNEL_UDP; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + TXGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + TXGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_GRE: + tunhdr_eiplen_tunlen = TXGBE_TXD_TUNNEL_GRE; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + TXGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + TXGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_IPIP: + tunhdr_eiplen_tunlen = + (((char *)inner_ip_hdr(skb)- + (char *)ip_hdr(skb)) >> 2) << + TXGBE_TXD_OUTER_IPLEN_SHIFT; + break; + default: + break; + } + + } else { + network_hdr.raw = skb_network_header(skb); + transport_hdr.raw = skb_transport_header(skb); + vlan_macip_lens = skb_network_offset(skb) << + TXGBE_TXD_MACLEN_SHIFT; + } + + switch (network_hdr.ipv4->version) { + case IPVERSION: + vlan_macip_lens |= + (transport_hdr.raw - network_hdr.raw) >> 1; + l4_prot = network_hdr.ipv4->protocol; + break; + case 6: + vlan_macip_lens |= + (transport_hdr.raw - network_hdr.raw) >> 1; + l4_prot = network_hdr.ipv6->nexthdr; + break; + default: + break; + } + + switch (l4_prot) { + case IPPROTO_TCP: + + mss_l4len_idx = (transport_hdr.tcphdr->doff * 4) << + TXGBE_TXD_L4LEN_SHIFT; + break; + case IPPROTO_SCTP: + mss_l4len_idx = sizeof(struct sctphdr) << + TXGBE_TXD_L4LEN_SHIFT; + break; + case IPPROTO_UDP: + mss_l4len_idx = sizeof(struct udphdr) << + TXGBE_TXD_L4LEN_SHIFT; + break; + default: + break; + } + + /* update TX checksum flag */ + first->tx_flags |= TXGBE_TX_FLAGS_CSUM; + } + first->tx_flags |= TXGBE_TX_FLAGS_CC; + /* vlan_macip_lens: MACLEN, VLAN tag */ + vlan_macip_lens |= first->tx_flags & TXGBE_TX_FLAGS_VLAN_MASK; + + type_tucmd = dptype.ptype << 24; + txgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, tunhdr_eiplen_tunlen, + type_tucmd, mss_l4len_idx); +} + +static u32 txgbe_tx_cmd_type(u32 tx_flags) +{ + /* set type for advanced descriptor with frame checksum insertion */ + u32 cmd_type = TXGBE_TXD_DTYP_DATA | + TXGBE_TXD_IFCS; + + /* set HW vlan bit if vlan is present */ + cmd_type |= TXGBE_SET_FLAG(tx_flags, TXGBE_TX_FLAGS_HW_VLAN, + TXGBE_TXD_VLE); + + /* set segmentation enable bits for TSO/FSO */ + cmd_type |= TXGBE_SET_FLAG(tx_flags, TXGBE_TX_FLAGS_TSO, + TXGBE_TXD_TSE); + + /* set timestamp bit if present */ + cmd_type |= TXGBE_SET_FLAG(tx_flags, TXGBE_TX_FLAGS_TSTAMP, + TXGBE_TXD_MAC_TSTAMP); + + cmd_type |= TXGBE_SET_FLAG(tx_flags, TXGBE_TX_FLAGS_LINKSEC, + TXGBE_TXD_LINKSEC); + + return cmd_type; +} + +static void txgbe_tx_olinfo_status(union txgbe_tx_desc *tx_desc, + u32 tx_flags, unsigned int paylen) +{ + u32 olinfo_status = paylen << TXGBE_TXD_PAYLEN_SHIFT; + + /* enable L4 checksum for TSO and TX checksum offload */ + olinfo_status |= TXGBE_SET_FLAG(tx_flags, + TXGBE_TX_FLAGS_CSUM, + TXGBE_TXD_L4CS); + + /* enble IPv4 checksum for TSO */ + olinfo_status |= TXGBE_SET_FLAG(tx_flags, + TXGBE_TX_FLAGS_IPV4, + TXGBE_TXD_IIPCS); + /* enable outer IPv4 checksum for TSO */ + olinfo_status |= TXGBE_SET_FLAG(tx_flags, + TXGBE_TX_FLAGS_OUTER_IPV4, + TXGBE_TXD_EIPCS); + /* + * Check Context must be set if Tx switch is enabled, which it + * always is for case where virtual functions are running + */ + olinfo_status |= TXGBE_SET_FLAG(tx_flags, + TXGBE_TX_FLAGS_CC, + TXGBE_TXD_CC); + + olinfo_status |= TXGBE_SET_FLAG(tx_flags, + TXGBE_TX_FLAGS_IPSEC, + TXGBE_TXD_IPSEC); + + tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); +} + +static int __txgbe_maybe_stop_tx(struct txgbe_ring *tx_ring, u16 size) +{ + netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); + + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. + */ + smp_mb(); + + /* We need to check again in a case another CPU has just + * made room available. + */ + if (likely(txgbe_desc_unused(tx_ring) < size)) + return -EBUSY; + + /* A reprieve! - use start_queue because it doesn't call schedule */ + netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); + ++tx_ring->tx_stats.restart_queue; + return 0; +} + +static inline int txgbe_maybe_stop_tx(struct txgbe_ring *tx_ring, u16 size) +{ + if (likely(txgbe_desc_unused(tx_ring) >= size)) + return 0; + + return __txgbe_maybe_stop_tx(tx_ring, size); +} + +#define TXGBE_TXD_CMD (TXGBE_TXD_EOP | \ + TXGBE_TXD_RS) + +static int txgbe_tx_map(struct txgbe_ring *tx_ring, + struct txgbe_tx_buffer *first, + const u8 hdr_len) +{ + struct sk_buff *skb = first->skb; + struct txgbe_tx_buffer *tx_buffer; + union txgbe_tx_desc *tx_desc; + skb_frag_t *frag; + dma_addr_t dma; + unsigned int data_len, size; + u32 tx_flags = first->tx_flags; + u32 cmd_type = txgbe_tx_cmd_type(tx_flags); + u16 i = tx_ring->next_to_use; + + tx_desc = TXGBE_TX_DESC(tx_ring, i); + + txgbe_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); + + size = skb_headlen(skb); + data_len = skb->data_len; + + dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); + + tx_buffer = first; + + for (frag = &skb_shinfo(skb)->frags[0];; frag++) { + if (dma_mapping_error(tx_ring->dev, dma)) + goto dma_error; + + /* record length, and DMA address */ + dma_unmap_len_set(tx_buffer, len, size); + dma_unmap_addr_set(tx_buffer, dma, dma); + + tx_desc->read.buffer_addr = cpu_to_le64(dma); + + while (unlikely(size > TXGBE_MAX_DATA_PER_TXD)) { + tx_desc->read.cmd_type_len = + cpu_to_le32(cmd_type ^ TXGBE_MAX_DATA_PER_TXD); + + i++; + tx_desc++; + if (i == tx_ring->count) { + tx_desc = TXGBE_TX_DESC(tx_ring, 0); + i = 0; + } + tx_desc->read.olinfo_status = 0; + + dma += TXGBE_MAX_DATA_PER_TXD; + size -= TXGBE_MAX_DATA_PER_TXD; + + tx_desc->read.buffer_addr = cpu_to_le64(dma); + } + + if (likely(!data_len)) + break; + + tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); + + i++; + tx_desc++; + if (i == tx_ring->count) { + tx_desc = TXGBE_TX_DESC(tx_ring, 0); + i = 0; + } + tx_desc->read.olinfo_status = 0; + + size = skb_frag_size(frag); + + data_len -= size; + + dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, + DMA_TO_DEVICE); + + tx_buffer = &tx_ring->tx_buffer_info[i]; + } + + /* write last descriptor with RS and EOP bits */ + cmd_type |= size | TXGBE_TXD_CMD; + tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); + + netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); + + /* set the timestamp */ + first->time_stamp = jiffies; + + /* + * Force memory writes to complete before letting h/w know there + * are new descriptors to fetch. (Only applicable for weak-ordered + * memory model archs, such as IA-64). + * + * We also need this memory barrier to make certain all of the + * status bits have been updated before next_to_watch is written. + */ + wmb(); + + /* set next_to_watch value indicating a packet is present */ + first->next_to_watch = tx_desc; + + i++; + if (i == tx_ring->count) + i = 0; + + tx_ring->next_to_use = i; + + txgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); + + skb_tx_timestamp(skb); + + if (netif_xmit_stopped(txring_txq(tx_ring)) || !netdev_xmit_more()) { + writel(i, tx_ring->tail); + /* The following mmiowb() is required on certain + * architechtures (IA64/Altix in particular) in order to + * synchronize the I/O calls with respect to a spin lock. This + * is because the wmb() on those architectures does not + * guarantee anything for posted I/O writes. + * + * Note that the associated spin_unlock() is not within the + * driver code, but in the networking core stack. + */ + mmiowb(); + } + + return 0; +dma_error: + dev_err(tx_ring->dev, "TX DMA map failed\n"); + + /* clear dma mappings for failed tx_buffer_info map */ + for (;;) { + tx_buffer = &tx_ring->tx_buffer_info[i]; + if (dma_unmap_len(tx_buffer, len)) + dma_unmap_page(tx_ring->dev, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + DMA_TO_DEVICE); + dma_unmap_len_set(tx_buffer, len, 0); + if (tx_buffer == first) + break; + if (i == 0) + i += tx_ring->count; + i--; + } + + dev_kfree_skb_any(first->skb); + first->skb = NULL; + + tx_ring->next_to_use = i; + + return -1; +} + +static void txgbe_atr(struct txgbe_ring *ring, + struct txgbe_tx_buffer *first, + txgbe_dptype dptype) +{ + struct txgbe_q_vector *q_vector = ring->q_vector; + union txgbe_atr_hash_dword input = { .dword = 0 }; + union txgbe_atr_hash_dword common = { .dword = 0 }; + union network_header hdr; + struct tcphdr *th; + + /* if ring doesn't have a interrupt vector, cannot perform ATR */ + if (!q_vector) + return; + + /* do nothing if sampling is disabled */ + if (!ring->atr_sample_rate) + return; + + ring->atr_count++; + + if (dptype.etype) { + if (TXGBE_PTYPE_TYP_TCP != TXGBE_PTYPE_TYPL4(dptype.ptype)) + return; + hdr.raw = (void *)skb_inner_network_header(first->skb); + th = inner_tcp_hdr(first->skb); + } else + + { + if (TXGBE_PTYPE_PKT_IP != TXGBE_PTYPE_PKT(dptype.ptype) || + TXGBE_PTYPE_TYP_TCP != TXGBE_PTYPE_TYPL4(dptype.ptype)) + return; + hdr.raw = (void *)skb_network_header(first->skb); + th = tcp_hdr(first->skb); + } + + /* skip this packet since it is invalid or the socket is closing */ + if (!th || th->fin) + return; + + /* sample on all syn packets or once every atr sample count */ + if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) + return; + + /* reset sample count */ + ring->atr_count = 0; + + /* + * src and dst are inverted, think how the receiver sees them + * + * The input is broken into two sections, a non-compressed section + * containing vm_pool, vlan_id, and flow_type. The rest of the data + * is XORed together and stored in the compressed dword. + */ + input.formatted.vlan_id = htons((u16)dptype.ptype); + + /* + * since src port and flex bytes occupy the same word XOR them together + * and write the value to source port portion of compressed dword + */ + if (first->tx_flags & TXGBE_TX_FLAGS_SW_VLAN) + common.port.src ^= th->dest ^ first->skb->protocol; + else if (first->tx_flags & TXGBE_TX_FLAGS_HW_VLAN) + common.port.src ^= th->dest ^ first->skb->vlan_proto; + else + common.port.src ^= th->dest ^ first->protocol; + common.port.dst ^= th->source; + + if (TXGBE_PTYPE_PKT_IPV6 & TXGBE_PTYPE_PKT(dptype.ptype)) { + input.formatted.flow_type = TXGBE_ATR_FLOW_TYPE_TCPV6; + common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ + hdr.ipv6->saddr.s6_addr32[1] ^ + hdr.ipv6->saddr.s6_addr32[2] ^ + hdr.ipv6->saddr.s6_addr32[3] ^ + hdr.ipv6->daddr.s6_addr32[0] ^ + hdr.ipv6->daddr.s6_addr32[1] ^ + hdr.ipv6->daddr.s6_addr32[2] ^ + hdr.ipv6->daddr.s6_addr32[3]; + } else { + input.formatted.flow_type = TXGBE_ATR_FLOW_TYPE_TCPV4; + common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; + } + + /* This assumes the Rx queue and Tx queue are bound to the same CPU */ + txgbe_fdir_add_signature_filter(&q_vector->adapter->hw, + input, common, ring->queue_index); +} + +/** + * skb_pad - zero pad the tail of an skb + * @skb: buffer to pad + * @pad: space to pad + * + * Ensure that a buffer is followed by a padding area that is zero + * filled. Used by network drivers which may DMA or transfer data + * beyond the buffer end onto the wire. + * + * May return error in out of memory cases. The skb is freed on error. + */ + +int txgbe_skb_pad_nonzero(struct sk_buff *skb, int pad) +{ + int err; + int ntail; + + /* If the skbuff is non linear tailroom is always zero.. */ + if (!skb_cloned(skb) && skb_tailroom(skb) >= pad) { + memset(skb->data+skb->len, 0x1, pad); + return 0; + } + + ntail = skb->data_len + pad - (skb->end - skb->tail); + if (likely(skb_cloned(skb) || ntail > 0)) { + err = pskb_expand_head(skb, 0, ntail, GFP_ATOMIC); + if (unlikely(err)) + goto free_skb; + } + + /* FIXME: The use of this function with non-linear skb's really needs + * to be audited. + */ + err = skb_linearize(skb); + if (unlikely(err)) + goto free_skb; + + memset(skb->data + skb->len, 0x1, pad); + return 0; + +free_skb: + kfree_skb(skb); + return err; +} + +netdev_tx_t txgbe_xmit_frame_ring(struct sk_buff *skb, + struct txgbe_adapter *adapter, + struct txgbe_ring *tx_ring) +{ + struct txgbe_tx_buffer *first; + int tso; + u32 tx_flags = 0; + unsigned short f; + u16 count = TXD_USE_COUNT(skb_headlen(skb)); + __be16 protocol = skb->protocol; + u8 hdr_len = 0; + txgbe_dptype dptype; + + /* work around hw errata 3 */ + u16 _llcLen, *llcLen; + llcLen = skb_header_pointer(skb, ETH_HLEN - 2, sizeof(u16), &_llcLen); + if (*llcLen == 0x3 || *llcLen == 0x4 || *llcLen == 0x5) { + if (txgbe_skb_pad_nonzero(skb, ETH_ZLEN - skb->len)) + return -ENOMEM; + __skb_put(skb, ETH_ZLEN - skb->len); + } + + /* + * need: 1 descriptor per page * PAGE_SIZE/TXGBE_MAX_DATA_PER_TXD, + * + 1 desc for skb_headlen/TXGBE_MAX_DATA_PER_TXD, + * + 2 desc gap to keep tail from touching head, + * + 1 desc for context descriptor, + * otherwise try next time + */ + for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) + count += TXD_USE_COUNT(skb_frag_size(&skb_shinfo(skb)-> + frags[f])); + + if (txgbe_maybe_stop_tx(tx_ring, count + 3)) { + tx_ring->tx_stats.tx_busy++; + return NETDEV_TX_BUSY; + } + + /* record the location of the first descriptor for this packet */ + first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; + first->skb = skb; + first->bytecount = skb->len; + first->gso_segs = 1; + + /* if we have a HW VLAN tag being added default to the HW one */ + if (skb_vlan_tag_present(skb)) { + tx_flags |= skb_vlan_tag_get(skb) << TXGBE_TX_FLAGS_VLAN_SHIFT; + tx_flags |= TXGBE_TX_FLAGS_HW_VLAN; + /* else if it is a SW VLAN check the next protocol and store the tag */ + } else if (protocol == htons(ETH_P_8021Q)) { + struct vlan_hdr *vhdr, _vhdr; + vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); + if (!vhdr) + goto out_drop; + + protocol = vhdr->h_vlan_encapsulated_proto; + tx_flags |= ntohs(vhdr->h_vlan_TCI) << + TXGBE_TX_FLAGS_VLAN_SHIFT; + tx_flags |= TXGBE_TX_FLAGS_SW_VLAN; + } + + if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && + adapter->ptp_clock) { + if (!test_and_set_bit_lock(__TXGBE_PTP_TX_IN_PROGRESS, + &adapter->state)) { + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + tx_flags |= TXGBE_TX_FLAGS_TSTAMP; + + /* schedule check for Tx timestamp */ + adapter->ptp_tx_skb = skb_get(skb); + adapter->ptp_tx_start = jiffies; + schedule_work(&adapter->ptp_tx_work); + } else { + adapter->tx_hwtstamp_skipped++; + } + } + + if ((adapter->flags & TXGBE_FLAG_DCB_ENABLED) && + ((tx_flags & (TXGBE_TX_FLAGS_HW_VLAN | TXGBE_TX_FLAGS_SW_VLAN)) || + (skb->priority != TC_PRIO_CONTROL))) { + tx_flags &= ~TXGBE_TX_FLAGS_VLAN_PRIO_MASK; + tx_flags |= skb->priority << + TXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; + if (tx_flags & TXGBE_TX_FLAGS_SW_VLAN) { + struct vlan_ethhdr *vhdr; + if (skb_header_cloned(skb) && + pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) + goto out_drop; + vhdr = (struct vlan_ethhdr *)skb->data; + vhdr->h_vlan_TCI = htons(tx_flags >> + TXGBE_TX_FLAGS_VLAN_SHIFT); + } else { + tx_flags |= TXGBE_TX_FLAGS_HW_VLAN; + } + } + + /* record initial flags and protocol */ + first->tx_flags = tx_flags; + first->protocol = protocol; + + dptype = encode_tx_desc_ptype(first); + + tso = txgbe_tso(tx_ring, first, &hdr_len, dptype); + if (tso < 0) + goto out_drop; + else if (!tso) + txgbe_tx_csum(tx_ring, first, dptype); + + /* add the ATR filter if ATR is on */ + if (test_bit(__TXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) + txgbe_atr(tx_ring, first, dptype); + + if (txgbe_tx_map(tx_ring, first, hdr_len)) + goto cleanup_tx_tstamp; + + return NETDEV_TX_OK; + +out_drop: + dev_kfree_skb_any(first->skb); + first->skb = NULL; + +cleanup_tx_tstamp: + if (unlikely(tx_flags & TXGBE_TX_FLAGS_TSTAMP)) { + dev_kfree_skb_any(adapter->ptp_tx_skb); + adapter->ptp_tx_skb = NULL; + cancel_work_sync(&adapter->ptp_tx_work); + clear_bit_unlock(__TXGBE_PTP_TX_IN_PROGRESS, &adapter->state); + } + + return NETDEV_TX_OK; +} + +static netdev_tx_t txgbe_xmit_frame(struct sk_buff *skb, + struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_ring *tx_ring; + unsigned int r_idx = skb->queue_mapping; + + if (!netif_carrier_ok(netdev)) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + /* + * The minimum packet size for olinfo paylen is 17 so pad the skb + * in order to meet this minimum size requirement. + */ + if (skb_put_padto(skb, 17)) + return NETDEV_TX_OK; + + if (r_idx >= adapter->num_tx_queues) + r_idx = r_idx % adapter->num_tx_queues; + tx_ring = adapter->tx_ring[r_idx]; + + return txgbe_xmit_frame_ring(skb, adapter, tx_ring); +} + +/** + * txgbe_set_mac - Change the Ethernet Address of the NIC + * @netdev: network interface device structure + * @p: pointer to an address structure + * + * Returns 0 on success, negative on failure + **/ +static int txgbe_set_mac(struct net_device *netdev, void *p) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + txgbe_del_mac_filter(adapter, hw->mac.addr, VMDQ_P(0)); + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); + + txgbe_mac_set_default_filter(adapter, hw->mac.addr); + + return 0; +} + +/** + * txgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding + * netdev->dev_addr_list + * @netdev: network interface device structure + * + * Returns non-zero on failure + **/ +static int txgbe_add_sanmac_netdev(struct net_device *dev) +{ + int err = 0; + struct txgbe_adapter *adapter = netdev_priv(dev); + struct txgbe_hw *hw = &adapter->hw; + + if (is_valid_ether_addr(hw->mac.san_addr)) { + rtnl_lock(); + err = dev_addr_add(dev, hw->mac.san_addr, + NETDEV_HW_ADDR_T_SAN); + rtnl_unlock(); + + /* update SAN MAC vmdq pool selection */ + TCALL(hw, mac.ops.set_vmdq_san_mac, VMDQ_P(0)); + } + return err; +} + +/** + * txgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding + * netdev->dev_addr_list + * @netdev: network interface device structure + * + * Returns non-zero on failure + **/ +static int txgbe_del_sanmac_netdev(struct net_device *dev) +{ + int err = 0; + struct txgbe_adapter *adapter = netdev_priv(dev); + struct txgbe_mac_info *mac = &adapter->hw.mac; + + if (is_valid_ether_addr(mac->san_addr)) { + rtnl_lock(); + err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); + rtnl_unlock(); + } + return err; +} + +static int txgbe_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd) +{ + struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &ifr->ifr_data; + int prtad, devad, ret; + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct txgbe_hw *hw = &adapter->hw; + u16 value = 0; + + prtad = (mii->phy_id & MDIO_PHY_ID_PRTAD) >> 5; + devad = (mii->phy_id & MDIO_PHY_ID_DEVAD); + + if (cmd == SIOCGMIIREG) { + ret = txgbe_read_mdio(&hw->phy_dev, prtad, devad, mii->reg_num, + &value); + if (ret < 0) + return ret; + mii->val_out = value; + return 0; + } else { + return txgbe_write_mdio(&hw->phy_dev, prtad, devad, + mii->reg_num, mii->val_in); + } +} + +static int txgbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + + struct txgbe_adapter *adapter = netdev_priv(netdev); + + switch (cmd) { + case SIOCGHWTSTAMP: + return txgbe_ptp_get_ts_config(adapter, ifr); + case SIOCSHWTSTAMP: + return txgbe_ptp_set_ts_config(adapter, ifr); + case SIOCGMIIREG: + case SIOCSMIIREG: + return txgbe_mii_ioctl(netdev, ifr, cmd); + default: + return -EOPNOTSUPP; + } +} + +/* txgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. + * @adapter: pointer to txgbe_adapter + * @tc: number of traffic classes currently enabled + * + * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm + * 802.1Q priority maps to a packet buffer that exists. + */ +static void txgbe_validate_rtr(struct txgbe_adapter *adapter, u8 tc) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 reg, rsave; + + reg = rd32(hw, TXGBE_RDB_UP2TC); + rsave = reg; + if (reg != rsave) + wr32(hw, TXGBE_RDB_UP2TC, reg); + + return; +} + +/** + * txgbe_set_prio_tc_map - Configure netdev prio tc map + * @adapter: Pointer to adapter struct + * + * Populate the netdev user priority to tc map + */ +static void txgbe_set_prio_tc_map(struct txgbe_adapter __maybe_unused *adapter) +{ + UNREFERENCED_PARAMETER(adapter); +} + +/** + * txgbe_setup_tc - routine to configure net_device for multiple traffic + * classes. + * + * @netdev: net device to configure + * @tc: number of traffic classes to enable + */ +int txgbe_setup_tc(struct net_device *dev, u8 tc) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + + if (tc && adapter->num_vmdqs > TXGBE_MAX_DCBMACVLANS) + return -EBUSY; + + /* Hardware has to reinitialize queues and interrupts to + * match packet buffer alignment. Unfortunately, the + * hardware is not flexible enough to do this dynamically. + */ + if (netif_running(dev)) + txgbe_close(dev); + else + txgbe_reset(adapter); + + txgbe_clear_interrupt_scheme(adapter); + + if (tc) { + netdev_set_num_tc(dev, tc); + txgbe_set_prio_tc_map(adapter); + } else { + netdev_reset_tc(dev); + } + + txgbe_validate_rtr(adapter, tc); + + txgbe_init_interrupt_scheme(adapter); + if (netif_running(dev)) + txgbe_open(dev); + + return 0; +} + +static int txgbe_setup_tc_mqprio(struct net_device *dev, + struct tc_mqprio_qopt *mqprio) +{ + mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; + return txgbe_setup_tc(dev, mqprio->num_tc); +} + +static int __txgbe_setup_tc(struct net_device *dev, enum tc_setup_type type, + void *type_data) +{ + switch (type) { + case TC_SETUP_QDISC_MQPRIO: + return txgbe_setup_tc_mqprio(dev, type_data); + default: + return -EOPNOTSUPP; + } +} + +void txgbe_do_reset(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + if (netif_running(netdev)) + txgbe_reinit_locked(adapter); + else + txgbe_reset(adapter); +} + +static netdev_features_t txgbe_fix_features(struct net_device *netdev, + netdev_features_t features) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ + if (!(features & NETIF_F_RXCSUM)) + features &= ~NETIF_F_LRO; + + /* Turn off LRO if not RSC capable */ + if (!(adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE)) + features &= ~NETIF_F_LRO; + + return features; +} + +static int txgbe_set_features(struct net_device *netdev, + netdev_features_t features) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + bool need_reset = false; + + /* Make sure RSC matches LRO, reset if change */ + if (!(features & NETIF_F_LRO)) { + if (adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED) + need_reset = true; + adapter->flags2 &= ~TXGBE_FLAG2_RSC_ENABLED; + } else if ((adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE) && + !(adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED)) { + if (adapter->rx_itr_setting == 1 || + adapter->rx_itr_setting > TXGBE_MIN_RSC_ITR) { + adapter->flags2 |= TXGBE_FLAG2_RSC_ENABLED; + need_reset = true; + } else if ((netdev->features ^ features) & NETIF_F_LRO) { + + e_info(probe, "rx-usecs set too low, " + "disabling RSC\n"); + } + } + + /* + * Check if Flow Director n-tuple support was enabled or disabled. If + * the state changed, we need to reset. + */ + switch (features & NETIF_F_NTUPLE) { + case NETIF_F_NTUPLE: + /* turn off ATR, enable perfect filters and reset */ + if (!(adapter->flags & TXGBE_FLAG_FDIR_PERFECT_CAPABLE)) + need_reset = true; + + adapter->flags &= ~TXGBE_FLAG_FDIR_HASH_CAPABLE; + adapter->flags |= TXGBE_FLAG_FDIR_PERFECT_CAPABLE; + break; + default: + /* turn off perfect filters, enable ATR and reset */ + if (adapter->flags & TXGBE_FLAG_FDIR_PERFECT_CAPABLE) + need_reset = true; + + adapter->flags &= ~TXGBE_FLAG_FDIR_PERFECT_CAPABLE; + + /* We cannot enable ATR if VMDq is enabled */ + if (adapter->flags & TXGBE_FLAG_VMDQ_ENABLED) + break; + + /* We cannot enable ATR if we have 2 or more traffic classes */ + if (netdev_get_num_tc(netdev) > 1) + break; + + /* We cannot enable ATR if RSS is disabled */ + if (adapter->ring_feature[RING_F_RSS].limit <= 1) + break; + + /* A sample rate of 0 indicates ATR disabled */ + if (!adapter->atr_sample_rate) + break; + + adapter->flags |= TXGBE_FLAG_FDIR_HASH_CAPABLE; + break; + } + + if (features & NETIF_F_HW_VLAN_CTAG_RX) + txgbe_vlan_strip_enable(adapter); + else + txgbe_vlan_strip_disable(adapter); + + if (adapter->flags & TXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE && + features & NETIF_F_RXCSUM) { + if (!need_reset) + adapter->flags2 |= TXGBE_FLAG2_VXLAN_REREG_NEEDED; + } else { + txgbe_clear_vxlan_port(adapter); + } + + if (features & NETIF_F_RXHASH) { + if (!(adapter->flags2 & TXGBE_FLAG2_RSS_ENABLED)) { + wr32m(&adapter->hw, TXGBE_RDB_RA_CTL, + TXGBE_RDB_RA_CTL_RSS_EN, TXGBE_RDB_RA_CTL_RSS_EN); + adapter->flags2 |= TXGBE_FLAG2_RSS_ENABLED; + } + } else { + if (adapter->flags2 & TXGBE_FLAG2_RSS_ENABLED) { + wr32m(&adapter->hw, TXGBE_RDB_RA_CTL, + TXGBE_RDB_RA_CTL_RSS_EN, ~TXGBE_RDB_RA_CTL_RSS_EN); + adapter->flags2 &= ~TXGBE_FLAG2_RSS_ENABLED; + } + } + + if (need_reset) + txgbe_do_reset(netdev); + + return 0; +} + +/** + * txgbe_add_udp_tunnel_port - Get notifications about adding UDP tunnel ports + * @dev: The port's netdev + * @ti: Tunnel endpoint information + **/ +static void txgbe_add_udp_tunnel_port(struct net_device *dev, + struct udp_tunnel_info *ti) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + struct txgbe_hw *hw = &adapter->hw; + __be16 port = ti->port; + + if (ti->sa_family != AF_INET) + return; + + switch (ti->type) { + case UDP_TUNNEL_TYPE_VXLAN: + if (!(adapter->flags & TXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) + return; + + if (adapter->vxlan_port == port) + return; + + if (adapter->vxlan_port) { + netdev_info(dev, + "VXLAN port %d set, not adding port %d\n", + ntohs(adapter->vxlan_port), + ntohs(port)); + return; + } + + adapter->vxlan_port = port; + wr32(hw, TXGBE_CFG_VXLAN, port); + break; + case UDP_TUNNEL_TYPE_GENEVE: + if (adapter->geneve_port == port) + return; + + if (adapter->geneve_port) { + netdev_info(dev, + "GENEVE port %d set, not adding port %d\n", + ntohs(adapter->geneve_port), + ntohs(port)); + return; + } + + adapter->geneve_port = port; + wr32(hw, TXGBE_CFG_GENEVE, port); + break; + default: + return; + } +} + +/** + * ixgbe_del_udp_tunnel_port - Get notifications about removing UDP tunnel ports + * @dev: The port's netdev + * @ti: Tunnel endpoint information + **/ +static void txgbe_del_udp_tunnel_port(struct net_device *dev, + struct udp_tunnel_info *ti) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + + if (ti->type != UDP_TUNNEL_TYPE_VXLAN && + ti->type != UDP_TUNNEL_TYPE_GENEVE) + return; + + if (ti->sa_family != AF_INET) + return; + + switch (ti->type) { + case UDP_TUNNEL_TYPE_VXLAN: + if (!(adapter->flags & TXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) + return; + + if (adapter->vxlan_port != ti->port) { + netdev_info(dev, "VXLAN port %d not found\n", + ntohs(ti->port)); + return; + } + + txgbe_clear_vxlan_port(adapter); + adapter->flags2 |= TXGBE_FLAG2_VXLAN_REREG_NEEDED; + break; + case UDP_TUNNEL_TYPE_GENEVE: + if (adapter->geneve_port != ti->port) { + netdev_info(dev, "GENEVE port %d not found\n", + ntohs(ti->port)); + return; + } + + adapter->geneve_port = 0; + wr32(&adapter->hw, TXGBE_CFG_GENEVE, 0); + break; + default: + return; + } +} + +static int txgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, + const unsigned char *addr, + u16 vid, + u16 flags) +{ + /* guarantee we can provide a unique filter for the unicast address */ + if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { + if (TXGBE_MAX_PF_MACVLANS <= netdev_uc_count(dev)) + return -ENOMEM; + } + + return ndo_dflt_fdb_add(ndm, tb, dev, addr, vid, flags); +} + +static int txgbe_ndo_bridge_setlink(struct net_device *dev, + struct nlmsghdr *nlh, + __always_unused u16 flags) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + struct nlattr *attr, *br_spec; + int rem; + + if (!(adapter->flags & TXGBE_FLAG_SRIOV_ENABLED)) + return -EOPNOTSUPP; + + br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); + + nla_for_each_nested(attr, br_spec, rem) { + __u16 mode; + + if (nla_type(attr) != IFLA_BRIDGE_MODE) + continue; + + mode = nla_get_u16(attr); + if (mode == BRIDGE_MODE_VEPA) { + adapter->flags |= TXGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE; + } else if (mode == BRIDGE_MODE_VEB) { + adapter->flags &= ~TXGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE; + } else { + return -EINVAL; + } + + adapter->bridge_mode = mode; + + /* re-configure settings related to bridge mode */ + txgbe_configure_bridge_mode(adapter); + + e_info(drv, "enabling bridge mode: %s\n", + mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); + } + + return 0; +} + +static int txgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, + struct net_device *dev, + u32 __maybe_unused filter_mask, + int nlflags) +{ + struct txgbe_adapter *adapter = netdev_priv(dev); + u16 mode; + + if (!(adapter->flags & TXGBE_FLAG_SRIOV_ENABLED)) + return 0; + + mode = adapter->bridge_mode; + return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, 0, 0, nlflags, + filter_mask, NULL); +} + +#define TXGBE_MAX_TUNNEL_HDR_LEN 80 +static netdev_features_t +txgbe_features_check(struct sk_buff *skb, struct net_device *dev, + netdev_features_t features) +{ + u32 vlan_num = 0; + u16 vlan_depth = skb->mac_len; + __be16 type = skb->protocol; + struct vlan_hdr *vh; + + if (skb_vlan_tag_present(skb)) { + vlan_num++; + } + + if (vlan_depth) { + vlan_depth -= VLAN_HLEN; + } else { + vlan_depth = ETH_HLEN; + } + + while (type == htons(ETH_P_8021Q) || type == htons(ETH_P_8021AD)) { + vlan_num++; + vh = (struct vlan_hdr *)(skb->data + vlan_depth); + type = vh->h_vlan_encapsulated_proto; + vlan_depth += VLAN_HLEN; + + } + + if (vlan_num > 2) + features &= ~(NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX); + + if (skb->encapsulation) { + if (unlikely(skb_inner_mac_header(skb) - + skb_transport_header(skb) > + TXGBE_MAX_TUNNEL_HDR_LEN)) + return features & ~NETIF_F_CSUM_MASK; + } + return features; +} + +static const struct net_device_ops txgbe_netdev_ops = { + .ndo_open = txgbe_open, + .ndo_stop = txgbe_close, + .ndo_start_xmit = txgbe_xmit_frame, + .ndo_set_rx_mode = txgbe_set_rx_mode, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = txgbe_set_mac, + .ndo_change_mtu = txgbe_change_mtu, + .ndo_tx_timeout = txgbe_tx_timeout, + .ndo_vlan_rx_add_vid = txgbe_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = txgbe_vlan_rx_kill_vid, + .ndo_do_ioctl = txgbe_ioctl, + .ndo_get_stats64 = txgbe_get_stats64, + .ndo_setup_tc = __txgbe_setup_tc, + .ndo_fdb_add = txgbe_ndo_fdb_add, + .ndo_bridge_setlink = txgbe_ndo_bridge_setlink, + .ndo_bridge_getlink = txgbe_ndo_bridge_getlink, + .ndo_udp_tunnel_add = txgbe_add_udp_tunnel_port, + .ndo_udp_tunnel_del = txgbe_del_udp_tunnel_port, + .ndo_features_check = txgbe_features_check, + .ndo_set_features = txgbe_set_features, + .ndo_fix_features = txgbe_fix_features, +}; + +void txgbe_assign_netdev_ops(struct net_device *dev) +{ + dev->netdev_ops = &txgbe_netdev_ops; + txgbe_set_ethtool_ops(dev); + dev->watchdog_timeo = 5 * HZ; +} + +/** + * txgbe_wol_supported - Check whether device supports WoL + * @adapter: the adapter private structure + * @device_id: the device ID + * @subdev_id: the subsystem device ID + * + * This function is used by probe and ethtool to determine + * which devices have WoL support + * + **/ +int txgbe_wol_supported(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + u16 wol_cap = adapter->eeprom_cap & TXGBE_DEVICE_CAPS_WOL_MASK; + + /* check eeprom to see if WOL is enabled */ + if ((wol_cap == TXGBE_DEVICE_CAPS_WOL_PORT0_1) || + ((wol_cap == TXGBE_DEVICE_CAPS_WOL_PORT0) && + (hw->bus.func == 0))) + return true; + else + return false; +} + +/** + * txgbe_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in txgbe_pci_tbl + * + * Returns 0 on success, negative on failure + * + * txgbe_probe initializes an adapter identified by a pci_dev structure. + * The OS initialization, configuring of the adapter private structure, + * and a hardware reset occur. + **/ +static int txgbe_probe(struct pci_dev *pdev, + const struct pci_device_id __always_unused *ent) +{ + struct net_device *netdev; + struct txgbe_adapter *adapter = NULL; + struct txgbe_hw *hw = NULL; + static int cards_found; + int err, pci_using_dac, expected_gts; + u16 offset = 0; + u16 eeprom_verh = 0, eeprom_verl = 0; + u16 eeprom_cfg_blkh = 0, eeprom_cfg_blkl = 0; + u32 etrack_id = 0; + u16 build = 0, major = 0, patch = 0; + char *info_string, *i_s_var; + u8 part_str[TXGBE_PBANUM_LENGTH]; + unsigned int indices = MAX_TX_QUEUES; + + bool disable_dev = false; +/* #ifndef NETIF_F_GSO_PARTIA */ + netdev_features_t hw_features; + + err = pci_enable_device_mem(pdev); + if (err) + return err; + + if (!dma_set_mask(pci_dev_to_dev(pdev), DMA_BIT_MASK(64)) && + !dma_set_coherent_mask(pci_dev_to_dev(pdev), DMA_BIT_MASK(64))) { + pci_using_dac = 1; + } else { + err = dma_set_mask(pci_dev_to_dev(pdev), DMA_BIT_MASK(32)); + if (err) { + err = dma_set_coherent_mask(pci_dev_to_dev(pdev), + DMA_BIT_MASK(32)); + if (err) { + dev_err(pci_dev_to_dev(pdev), "No usable DMA " + "configuration, aborting\n"); + goto err_dma; + } + } + pci_using_dac = 0; + } + + err = pci_request_selected_regions(pdev, pci_select_bars(pdev, + IORESOURCE_MEM), txgbe_driver_name); + if (err) { + dev_err(pci_dev_to_dev(pdev), + "pci_request_selected_regions failed 0x%x\n", err); + goto err_pci_reg; + } + + hw = vmalloc(sizeof(struct txgbe_hw)); + if (!hw) { + pr_info("Unable to allocate memory for early mac check\n"); + } else { + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + vfree(hw); + } + + pci_enable_pcie_error_reporting(pdev); + pci_set_master(pdev); + /* errata 16 */ + pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL, + PCI_EXP_DEVCTL_READRQ, + 0x1000); + + netdev = alloc_etherdev_mq(sizeof(struct txgbe_adapter), indices); + if (!netdev) { + err = -ENOMEM; + goto err_alloc_etherdev; + } + + SET_NETDEV_DEV(netdev, pci_dev_to_dev(pdev)); + + adapter = netdev_priv(netdev); + adapter->netdev = netdev; + adapter->pdev = pdev; + hw = &adapter->hw; + hw->back = adapter; + adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; + + hw->hw_addr = ioremap(pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)); + adapter->io_addr = hw->hw_addr; + if (!hw->hw_addr) { + err = -EIO; + goto err_ioremap; + } + + txgbe_assign_netdev_ops(netdev); + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + adapter->bd_number = cards_found; + + /* setup the private structure */ + err = txgbe_sw_init(adapter); + if (err) + goto err_sw_init; + + /* + * check_options must be called before setup_link to set up + * hw->fc completely + */ + txgbe_check_options(adapter); + txgbe_bp_mode_setting(adapter); + TCALL(hw, mac.ops.set_lan_id); + + /* check if flash load is done after hw power up */ + err = txgbe_check_flash_load(hw, TXGBE_SPI_ILDR_STATUS_PERST); + if (err) + goto err_sw_init; + err = txgbe_check_flash_load(hw, TXGBE_SPI_ILDR_STATUS_PWRRST); + if (err) + goto err_sw_init; + + /* reset_hw fills in the perm_addr as well */ + hw->phy.reset_if_overtemp = true; + err = TCALL(hw, mac.ops.reset_hw); + hw->phy.reset_if_overtemp = false; + if (err == TXGBE_ERR_SFP_NOT_PRESENT) { + err = 0; + } else if (err == TXGBE_ERR_SFP_NOT_SUPPORTED) { + e_dev_err("failed to load because an unsupported SFP+ " + "module type was detected.\n"); + e_dev_err("Reload the driver after installing a supported " + "module.\n"); + goto err_sw_init; + } else if (err) { + e_dev_err("HW Init failed: %d\n", err); + goto err_sw_init; + } + + netdev->features |= NETIF_F_SG | + NETIF_F_IP_CSUM; + +#ifdef NETIF_F_IPV6_CSUM + netdev->features |= NETIF_F_IPV6_CSUM; +#endif + + netdev->features |= NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX; + + netdev->features |= txgbe_tso_features(); + + if (adapter->flags2 & TXGBE_FLAG2_RSS_ENABLED) + netdev->features |= NETIF_F_RXHASH; + + netdev->features |= NETIF_F_RXCSUM; + + /* copy netdev features into list of user selectable features */ + hw_features = netdev->hw_features; + hw_features |= netdev->features; + + /* give us the option of enabling RSC/LRO later */ + if (adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE) + hw_features |= NETIF_F_LRO; + + /* set this bit last since it cannot be part of hw_features */ + netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; + + netdev->features |= NETIF_F_NTUPLE; + + adapter->flags |= TXGBE_FLAG_FDIR_PERFECT_CAPABLE; + hw_features |= NETIF_F_NTUPLE; + netdev->hw_features = hw_features; + + netdev->vlan_features |= NETIF_F_SG | + NETIF_F_IP_CSUM | + NETIF_F_IPV6_CSUM | + NETIF_F_TSO | + NETIF_F_TSO6; + + netdev->hw_enc_features |= NETIF_F_SG | NETIF_F_IP_CSUM | + TXGBE_GSO_PARTIAL_FEATURES | NETIF_F_TSO; + if (netdev->features & NETIF_F_LRO) { + if ((adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE) && + ((adapter->rx_itr_setting == 1) || + (adapter->rx_itr_setting > TXGBE_MIN_RSC_ITR))) { + adapter->flags2 |= TXGBE_FLAG2_RSC_ENABLED; + } else if (adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE) { + e_dev_info("InterruptThrottleRate set too high, " + "disabling RSC\n"); + } + } + + netdev->priv_flags |= IFF_UNICAST_FLT; + netdev->priv_flags |= IFF_SUPP_NOFCS; + + netdev->min_mtu = ETH_MIN_MTU; + netdev->max_mtu = TXGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN); + + if (pci_using_dac) { + netdev->features |= NETIF_F_HIGHDMA; + netdev->vlan_features |= NETIF_F_HIGHDMA; + } + + /* make sure the EEPROM is good */ + if (TCALL(hw, eeprom.ops.validate_checksum, NULL)) { + e_dev_err("The EEPROM Checksum Is Not Valid\n"); + err = -EIO; + goto err_sw_init; + } + + memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); + + if (!is_valid_ether_addr(netdev->dev_addr)) { + e_dev_err("invalid MAC address\n"); + err = -EIO; + goto err_sw_init; + } + + txgbe_mac_set_default_filter(adapter, hw->mac.perm_addr); + + timer_setup(&adapter->service_timer, txgbe_service_timer, 0); + + if (TXGBE_REMOVED(hw->hw_addr)) { + err = -EIO; + goto err_sw_init; + } + INIT_WORK(&adapter->service_task, txgbe_service_task); + set_bit(__TXGBE_SERVICE_INITED, &adapter->state); + clear_bit(__TXGBE_SERVICE_SCHED, &adapter->state); + + err = txgbe_init_interrupt_scheme(adapter); + if (err) + goto err_sw_init; + + /* WOL not supported for all devices */ + adapter->wol = 0; + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_DEVICE_CAPS, + &adapter->eeprom_cap); + + if ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP && + hw->bus.lan_id == 0) { + adapter->wol = TXGBE_PSR_WKUP_CTL_MAG; + wr32(hw, TXGBE_PSR_WKUP_CTL, adapter->wol); + } + hw->wol_enabled = !!(adapter->wol); + + device_set_wakeup_enable(pci_dev_to_dev(adapter->pdev), adapter->wol); + + /* + * Save off EEPROM version number and Option Rom version which + * together make a unique identify for the eeprom + */ + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_EEPROM_VERSION_H, + &eeprom_verh); + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_EEPROM_VERSION_L, + &eeprom_verl); + etrack_id = (eeprom_verh << 16) | eeprom_verl; + + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + TXGBE_ISCSI_BOOT_CONFIG, &offset); + + /* Make sure offset to SCSI block is valid */ + if (!(offset == 0x0) && !(offset == 0xffff)) { + TCALL(hw, eeprom.ops.read, offset + 0x84, &eeprom_cfg_blkh); + TCALL(hw, eeprom.ops.read, offset + 0x83, &eeprom_cfg_blkl); + + /* Only display Option Rom if exist */ + if (eeprom_cfg_blkl && eeprom_cfg_blkh) { + major = eeprom_cfg_blkl >> 8; + build = (eeprom_cfg_blkl << 8) | (eeprom_cfg_blkh >> 8); + patch = eeprom_cfg_blkh & 0x00ff; + + snprintf(adapter->eeprom_id, sizeof(adapter->eeprom_id), + "0x%08x, %d.%d.%d", etrack_id, major, build, + patch); + } else { + snprintf(adapter->eeprom_id, sizeof(adapter->eeprom_id), + "0x%08x", etrack_id); + } + } else { + snprintf(adapter->eeprom_id, sizeof(adapter->eeprom_id), + "0x%08x", etrack_id); + } + + /* reset the hardware with the new settings */ + err = TCALL(hw, mac.ops.start_hw); + if (err == TXGBE_ERR_EEPROM_VERSION) { + /* We are running on a pre-production device, log a warning */ + e_dev_warn("This device is a pre-production adapter/LOM. " + "Please be aware there may be issues associated " + "with your hardware. If you are experiencing " + "problems please contact your hardware " + "representative who provided you with this " + "hardware.\n"); + } else if (err) { + e_dev_err("HW init failed\n"); + goto err_register; + } + + /* pick up the PCI bus settings for reporting later */ + TCALL(hw, mac.ops.get_bus_info); + + strcpy(netdev->name, "eth%d"); + err = register_netdev(netdev); + if (err) + goto err_register; + + pci_set_drvdata(pdev, adapter); + adapter->netdev_registered = true; + + if (!((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP)) + /* power down the optics for SFP+ fiber */ + TCALL(hw, mac.ops.disable_tx_laser); + + /* carrier off reporting is important to ethtool even BEFORE open */ + netif_carrier_off(netdev); + /* keep stopping all the transmit queues for older kernels */ + netif_tx_stop_all_queues(netdev); + + /* print all messages at the end so that we use our eth%d name */ + + /* calculate the expected PCIe bandwidth required for optimal + * performance. Note that some older parts will never have enough + * bandwidth due to being older generation PCIe parts. We clamp these + * parts to ensure that no warning is displayed, as this could confuse + * users otherwise. */ + + expected_gts = txgbe_enumerate_functions(adapter) * 10; + + /* don't check link if we failed to enumerate functions */ + if (expected_gts > 0) + txgbe_check_minimum_link(adapter, expected_gts); + + if ((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) + e_info(probe, "NCSI : support"); + else + e_info(probe, "NCSI : unsupported"); + + /* First try to read PBA as a string */ + err = txgbe_read_pba_string(hw, part_str, TXGBE_PBANUM_LENGTH); + if (err) + + strncpy(part_str, "Unknown", TXGBE_PBANUM_LENGTH); + if (txgbe_is_sfp(hw) && hw->phy.sfp_type != txgbe_sfp_type_not_present) + e_info(probe, "PHY: %d, SFP+: %d, PBA No: %s\n", + hw->phy.type, hw->phy.sfp_type, part_str); + else + e_info(probe, "PHY: %d, PBA No: %s\n", + hw->phy.type, part_str); + + e_dev_info("%02x:%02x:%02x:%02x:%02x:%02x\n", + netdev->dev_addr[0], netdev->dev_addr[1], + netdev->dev_addr[2], netdev->dev_addr[3], + netdev->dev_addr[4], netdev->dev_addr[5]); + +#define INFO_STRING_LEN 255 + info_string = kzalloc(INFO_STRING_LEN, GFP_KERNEL); + if (!info_string) { + e_err(probe, "allocation for info string failed\n"); + goto no_info_string; + } + i_s_var = info_string; + i_s_var += sprintf(info_string, "Enabled Features: "); + i_s_var += sprintf(i_s_var, "RxQ: %d TxQ: %d ", + adapter->num_rx_queues, adapter->num_tx_queues); + if (adapter->flags & TXGBE_FLAG_FDIR_HASH_CAPABLE) + i_s_var += sprintf(i_s_var, "FdirHash "); + if (adapter->flags & TXGBE_FLAG_DCB_ENABLED) + i_s_var += sprintf(i_s_var, "DCB "); + if (adapter->flags & TXGBE_FLAG_TPH_ENABLED) + i_s_var += sprintf(i_s_var, "TPH "); + if (adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED) + i_s_var += sprintf(i_s_var, "RSC "); + if (adapter->flags & TXGBE_FLAG_VXLAN_OFFLOAD_ENABLE) + i_s_var += sprintf(i_s_var, "vxlan_rx "); + + BUG_ON(i_s_var > (info_string + INFO_STRING_LEN)); + /* end features printing */ + e_info(probe, "%s\n", info_string); + kfree(info_string); +no_info_string: + /* firmware requires blank driver version */ + TCALL(hw, mac.ops.set_fw_drv_ver, 0xFF, 0xFF, 0xFF, 0xFF); + + /* add san mac addr to netdev */ + txgbe_add_sanmac_netdev(netdev); + + e_info(probe, "WangXun(R) 10 Gigabit Network Connection\n"); + cards_found++; + + /* setup link for SFP devices with MNG FW, else wait for TXGBE_UP */ + if (txgbe_mng_present(hw) && txgbe_is_sfp(hw)) + TCALL(hw, mac.ops.setup_link, + TXGBE_LINK_SPEED_10GB_FULL | TXGBE_LINK_SPEED_1GB_FULL, + true); + + TCALL(hw, mac.ops.setup_eee, + (adapter->flags2 & TXGBE_FLAG2_EEE_CAPABLE) && + (adapter->flags2 & TXGBE_FLAG2_EEE_ENABLED)); + + return 0; + +err_register: + txgbe_clear_interrupt_scheme(adapter); + txgbe_release_hw_control(adapter); +err_sw_init: + adapter->flags2 &= ~TXGBE_FLAG2_SEARCH_FOR_SFP; + kfree(adapter->mac_table); + iounmap(adapter->io_addr); +err_ioremap: + disable_dev = !test_and_set_bit(__TXGBE_DISABLED, &adapter->state); + free_netdev(netdev); +err_alloc_etherdev: + pci_release_selected_regions(pdev, + pci_select_bars(pdev, IORESOURCE_MEM)); +err_pci_reg: +err_dma: + if (!adapter || disable_dev) + pci_disable_device(pdev); + return err; +} + +/** + * txgbe_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * txgbe_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. The could be caused by a + * Hot-Plug event, or because the driver is going to be removed from + * memory. + **/ +static void txgbe_remove(struct pci_dev *pdev) +{ + struct txgbe_adapter *adapter = pci_get_drvdata(pdev); + struct net_device *netdev; + bool disable_dev; + + /* if !adapter then we already cleaned up in probe */ + if (!adapter) + return; + + netdev = adapter->netdev; + set_bit(__TXGBE_REMOVING, &adapter->state); + cancel_work_sync(&adapter->service_task); + + /* remove the added san mac */ + txgbe_del_sanmac_netdev(netdev); + + if (adapter->netdev_registered) { + unregister_netdev(netdev); + adapter->netdev_registered = false; + } + + txgbe_clear_interrupt_scheme(adapter); + txgbe_release_hw_control(adapter); + + iounmap(adapter->io_addr); + pci_release_selected_regions(pdev, + pci_select_bars(pdev, IORESOURCE_MEM)); + + kfree(adapter->mac_table); + disable_dev = !test_and_set_bit(__TXGBE_DISABLED, &adapter->state); + free_netdev(netdev); + + pci_disable_pcie_error_reporting(pdev); + + if (disable_dev) + pci_disable_device(pdev); +} + +static bool txgbe_check_cfg_remove(struct txgbe_hw *hw, struct pci_dev *pdev) +{ + u16 value; + + pci_read_config_word(pdev, PCI_VENDOR_ID, &value); + if (value == TXGBE_FAILED_READ_CFG_WORD) { + txgbe_remove_adapter(hw); + return true; + } + return false; +} + +u16 txgbe_read_pci_cfg_word(struct txgbe_hw *hw, u32 reg) +{ + struct txgbe_adapter *adapter = hw->back; + u16 value; + + if (TXGBE_REMOVED(hw->hw_addr)) + return TXGBE_FAILED_READ_CFG_WORD; + pci_read_config_word(adapter->pdev, reg, &value); + if (value == TXGBE_FAILED_READ_CFG_WORD && + txgbe_check_cfg_remove(hw, adapter->pdev)) + return TXGBE_FAILED_READ_CFG_WORD; + return value; +} + +void txgbe_write_pci_cfg_word(struct txgbe_hw *hw, u32 reg, u16 value) +{ + struct txgbe_adapter *adapter = hw->back; + + if (TXGBE_REMOVED(hw->hw_addr)) + return; + pci_write_config_word(adapter->pdev, reg, value); +} + +static struct pci_driver txgbe_driver = { + .name = txgbe_driver_name, + .id_table = txgbe_pci_tbl, + .probe = txgbe_probe, + .remove = txgbe_remove, +#ifdef CONFIG_PM + .suspend = txgbe_suspend, + .resume = txgbe_resume, +#endif + .shutdown = txgbe_shutdown, +}; + +/** + * txgbe_init_module - Driver Registration Routine + * + * txgbe_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + **/ +static int __init txgbe_init_module(void) +{ + int ret; + pr_info("%s - version %s\n", txgbe_driver_string, txgbe_driver_version); + pr_info("%s\n", txgbe_copyright); + + txgbe_wq = create_singlethread_workqueue(txgbe_driver_name); + if (!txgbe_wq) { + pr_err("%s: Failed to create workqueue\n", txgbe_driver_name); + return -ENOMEM; + } + + ret = pci_register_driver(&txgbe_driver); + return ret; +} + +module_init(txgbe_init_module); + +/** + * txgbe_exit_module - Driver Exit Cleanup Routine + * + * txgbe_exit_module is called just before the driver is removed + * from memory. + **/ +static void __exit txgbe_exit_module(void) +{ + pci_unregister_driver(&txgbe_driver); + if (txgbe_wq) { + destroy_workqueue(txgbe_wq); + } +} + +module_exit(txgbe_exit_module); + +/* txgbe_main.c */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_mbx.c b/drivers/net/ethernet/netswift/txgbe/txgbe_mbx.c new file mode 100644 index 0000000000000..08c67fdccc161 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_mbx.c @@ -0,0 +1,399 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_mbx.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#include "txgbe.h" +#include "txgbe_mbx.h" + +/** + * txgbe_read_mbx - Reads a message from the mailbox + * @hw: pointer to the HW structure + * @msg: The message buffer + * @size: Length of buffer + * @mbx_id: id of mailbox to read + * + * returns SUCCESS if it successfuly read message from buffer + **/ +int txgbe_read_mbx(struct txgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id) +{ + struct txgbe_mbx_info *mbx = &hw->mbx; + int err = TXGBE_ERR_MBX; + + /* limit read to size of mailbox */ + if (size > mbx->size) + size = mbx->size; + + err = TCALL(hw, mbx.ops.read, msg, size, mbx_id); + + return err; +} + +/** + * txgbe_write_mbx - Write a message to the mailbox + * @hw: pointer to the HW structure + * @msg: The message buffer + * @size: Length of buffer + * @mbx_id: id of mailbox to write + * + * returns SUCCESS if it successfully copied message into the buffer + **/ +int txgbe_write_mbx(struct txgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id) +{ + struct txgbe_mbx_info *mbx = &hw->mbx; + int err = 0; + + if (size > mbx->size) { + err = TXGBE_ERR_MBX; + ERROR_REPORT2(TXGBE_ERROR_ARGUMENT, + "Invalid mailbox message size %d", size); + } else + err = TCALL(hw, mbx.ops.write, msg, size, mbx_id); + + return err; +} + +/** + * txgbe_check_for_msg - checks to see if someone sent us mail + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to check + * + * returns SUCCESS if the Status bit was found or else ERR_MBX + **/ +int txgbe_check_for_msg(struct txgbe_hw *hw, u16 mbx_id) +{ + int err = TXGBE_ERR_MBX; + + err = TCALL(hw, mbx.ops.check_for_msg, mbx_id); + + return err; +} + +/** + * txgbe_check_for_ack - checks to see if someone sent us ACK + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to check + * + * returns SUCCESS if the Status bit was found or else ERR_MBX + **/ +int txgbe_check_for_ack(struct txgbe_hw *hw, u16 mbx_id) +{ + int err = TXGBE_ERR_MBX; + + err = TCALL(hw, mbx.ops.check_for_ack, mbx_id); + + return err; +} + +/** + * txgbe_check_for_rst - checks to see if other side has reset + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to check + * + * returns SUCCESS if the Status bit was found or else ERR_MBX + **/ +int txgbe_check_for_rst(struct txgbe_hw *hw, u16 mbx_id) +{ + struct txgbe_mbx_info *mbx = &hw->mbx; + int err = TXGBE_ERR_MBX; + + if (mbx->ops.check_for_rst) + err = mbx->ops.check_for_rst(hw, mbx_id); + + return err; +} + +/** + * txgbe_poll_for_msg - Wait for message notification + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to write + * + * returns SUCCESS if it successfully received a message notification + **/ +int txgbe_poll_for_msg(struct txgbe_hw *hw, u16 mbx_id) +{ + struct txgbe_mbx_info *mbx = &hw->mbx; + int countdown = mbx->timeout; + + if (!countdown || !mbx->ops.check_for_msg) + goto out; + + while (countdown && TCALL(hw, mbx.ops.check_for_msg, mbx_id)) { + countdown--; + if (!countdown) + break; + udelay(mbx->udelay); + } + + if (countdown == 0) + ERROR_REPORT2(TXGBE_ERROR_POLLING, + "Polling for VF%d mailbox message timedout", mbx_id); + +out: + return countdown ? 0 : TXGBE_ERR_MBX; +} + +/** + * txgbe_poll_for_ack - Wait for message acknowledgement + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to write + * + * returns SUCCESS if it successfully received a message acknowledgement + **/ +int txgbe_poll_for_ack(struct txgbe_hw *hw, u16 mbx_id) +{ + struct txgbe_mbx_info *mbx = &hw->mbx; + int countdown = mbx->timeout; + + if (!countdown || !mbx->ops.check_for_ack) + goto out; + + while (countdown && TCALL(hw, mbx.ops.check_for_ack, mbx_id)) { + countdown--; + if (!countdown) + break; + udelay(mbx->udelay); + } + + if (countdown == 0) + ERROR_REPORT2(TXGBE_ERROR_POLLING, + "Polling for VF%d mailbox ack timedout", mbx_id); + +out: + return countdown ? 0 : TXGBE_ERR_MBX; +} + +int txgbe_check_for_bit_pf(struct txgbe_hw *hw, u32 mask, int index) +{ + u32 mbvficr = rd32(hw, TXGBE_MBVFICR(index)); + int err = TXGBE_ERR_MBX; + + if (mbvficr & mask) { + err = 0; + wr32(hw, TXGBE_MBVFICR(index), mask); + } + + return err; +} + +/** + * txgbe_check_for_msg_pf - checks to see if the VF has sent mail + * @hw: pointer to the HW structure + * @vf: the VF index + * + * returns SUCCESS if the VF has set the Status bit or else ERR_MBX + **/ +int txgbe_check_for_msg_pf(struct txgbe_hw *hw, u16 vf) +{ + int err = TXGBE_ERR_MBX; + int index = TXGBE_MBVFICR_INDEX(vf); + u32 vf_bit = vf % 16; + + if (!txgbe_check_for_bit_pf(hw, TXGBE_MBVFICR_VFREQ_VF1 << vf_bit, + index)) { + err = 0; + hw->mbx.stats.reqs++; + } + + return err; +} + +/** + * txgbe_check_for_ack_pf - checks to see if the VF has ACKed + * @hw: pointer to the HW structure + * @vf: the VF index + * + * returns SUCCESS if the VF has set the Status bit or else ERR_MBX + **/ +int txgbe_check_for_ack_pf(struct txgbe_hw *hw, u16 vf) +{ + int err = TXGBE_ERR_MBX; + int index = TXGBE_MBVFICR_INDEX(vf); + u32 vf_bit = vf % 16; + + if (!txgbe_check_for_bit_pf(hw, TXGBE_MBVFICR_VFACK_VF1 << vf_bit, + index)) { + err = 0; + hw->mbx.stats.acks++; + } + + return err; +} + +/** + * txgbe_check_for_rst_pf - checks to see if the VF has reset + * @hw: pointer to the HW structure + * @vf: the VF index + * + * returns SUCCESS if the VF has set the Status bit or else ERR_MBX + **/ +int txgbe_check_for_rst_pf(struct txgbe_hw *hw, u16 vf) +{ + u32 reg_offset = (vf < 32) ? 0 : 1; + u32 vf_shift = vf % 32; + u32 vflre = 0; + int err = TXGBE_ERR_MBX; + + vflre = rd32(hw, TXGBE_VFLRE(reg_offset)); + + if (vflre & (1 << vf_shift)) { + err = 0; + wr32(hw, TXGBE_VFLREC(reg_offset), (1 << vf_shift)); + hw->mbx.stats.rsts++; + } + + return err; +} + +/** + * txgbe_obtain_mbx_lock_pf - obtain mailbox lock + * @hw: pointer to the HW structure + * @vf: the VF index + * + * return SUCCESS if we obtained the mailbox lock + **/ +int txgbe_obtain_mbx_lock_pf(struct txgbe_hw *hw, u16 vf) +{ + int err = TXGBE_ERR_MBX; + u32 mailbox; + + /* Take ownership of the buffer */ + wr32(hw, TXGBE_PXMAILBOX(vf), TXGBE_PXMAILBOX_PFU); + + /* reserve mailbox for vf use */ + mailbox = rd32(hw, TXGBE_PXMAILBOX(vf)); + if (mailbox & TXGBE_PXMAILBOX_PFU) + err = 0; + else + ERROR_REPORT2(TXGBE_ERROR_POLLING, + "Failed to obtain mailbox lock for PF%d", vf); + + + return err; +} + +/** + * txgbe_write_mbx_pf - Places a message in the mailbox + * @hw: pointer to the HW structure + * @msg: The message buffer + * @size: Length of buffer + * @vf: the VF index + * + * returns SUCCESS if it successfully copied message into the buffer + **/ +int txgbe_write_mbx_pf(struct txgbe_hw *hw, u32 *msg, u16 size, + u16 vf) +{ + int err; + u16 i; + + /* lock the mailbox to prevent pf/vf race condition */ + err = txgbe_obtain_mbx_lock_pf(hw, vf); + if (err) + goto out_no_write; + + /* flush msg and acks as we are overwriting the message buffer */ + txgbe_check_for_msg_pf(hw, vf); + txgbe_check_for_ack_pf(hw, vf); + + /* copy the caller specified message to the mailbox memory buffer */ + for (i = 0; i < size; i++) + wr32a(hw, TXGBE_PXMBMEM(vf), i, msg[i]); + + /* Interrupt VF to tell it a message has been sent and release buffer*/ + /* set mirrored mailbox flags */ + wr32a(hw, TXGBE_PXMBMEM(vf), TXGBE_VXMAILBOX_SIZE, TXGBE_PXMAILBOX_STS); + wr32(hw, TXGBE_PXMAILBOX(vf), TXGBE_PXMAILBOX_STS); + + /* update stats */ + hw->mbx.stats.msgs_tx++; + +out_no_write: + return err; + +} + +/** + * txgbe_read_mbx_pf - Read a message from the mailbox + * @hw: pointer to the HW structure + * @msg: The message buffer + * @size: Length of buffer + * @vf: the VF index + * + * This function copies a message from the mailbox buffer to the caller's + * memory buffer. The presumption is that the caller knows that there was + * a message due to a VF request so no polling for message is needed. + **/ +int txgbe_read_mbx_pf(struct txgbe_hw *hw, u32 *msg, u16 size, + u16 vf) +{ + int err; + u16 i; + + /* lock the mailbox to prevent pf/vf race condition */ + err = txgbe_obtain_mbx_lock_pf(hw, vf); + if (err) + goto out_no_read; + + /* copy the message to the mailbox memory buffer */ + for (i = 0; i < size; i++) + msg[i] = rd32a(hw, TXGBE_PXMBMEM(vf), i); + + /* Acknowledge the message and release buffer */ + /* set mirrored mailbox flags */ + wr32a(hw, TXGBE_PXMBMEM(vf), TXGBE_VXMAILBOX_SIZE, TXGBE_PXMAILBOX_ACK); + wr32(hw, TXGBE_PXMAILBOX(vf), TXGBE_PXMAILBOX_ACK); + + /* update stats */ + hw->mbx.stats.msgs_rx++; + +out_no_read: + return err; +} + +/** + * txgbe_init_mbx_params_pf - set initial values for pf mailbox + * @hw: pointer to the HW structure + * + * Initializes the hw->mbx struct to correct values for pf mailbox + */ +void txgbe_init_mbx_params_pf(struct txgbe_hw *hw) +{ + struct txgbe_mbx_info *mbx = &hw->mbx; + + mbx->timeout = 0; + mbx->udelay = 0; + + mbx->size = TXGBE_VXMAILBOX_SIZE; + + mbx->ops.read = txgbe_read_mbx_pf; + mbx->ops.write = txgbe_write_mbx_pf; + mbx->ops.check_for_msg = txgbe_check_for_msg_pf; + mbx->ops.check_for_ack = txgbe_check_for_ack_pf; + mbx->ops.check_for_rst = txgbe_check_for_rst_pf; + + mbx->stats.msgs_tx = 0; + mbx->stats.msgs_rx = 0; + mbx->stats.reqs = 0; + mbx->stats.acks = 0; + mbx->stats.rsts = 0; +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_mbx.h b/drivers/net/ethernet/netswift/txgbe/txgbe_mbx.h new file mode 100644 index 0000000000000..e412a5e546e10 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_mbx.h @@ -0,0 +1,171 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_mbx.h, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + +#ifndef _TXGBE_MBX_H_ +#define _TXGBE_MBX_H_ + +#define TXGBE_VXMAILBOX_SIZE (16 - 1) + +/** + * VF Registers + **/ +#define TXGBE_VXMAILBOX 0x00600 +#define TXGBE_VXMAILBOX_REQ ((0x1) << 0) /* Request for PF Ready bit */ +#define TXGBE_VXMAILBOX_ACK ((0x1) << 1) /* Ack PF message received */ +#define TXGBE_VXMAILBOX_VFU ((0x1) << 2) /* VF owns the mailbox buffer */ +#define TXGBE_VXMAILBOX_PFU ((0x1) << 3) /* PF owns the mailbox buffer */ +#define TXGBE_VXMAILBOX_PFSTS ((0x1) << 4) /* PF wrote a message in the MB */ +#define TXGBE_VXMAILBOX_PFACK ((0x1) << 5) /* PF ack the previous VF msg */ +#define TXGBE_VXMAILBOX_RSTI ((0x1) << 6) /* PF has reset indication */ +#define TXGBE_VXMAILBOX_RSTD ((0x1) << 7) /* PF has indicated reset done */ +#define TXGBE_VXMAILBOX_R2C_BITS (TXGBE_VXMAILBOX_RSTD | \ + TXGBE_VXMAILBOX_PFSTS | TXGBE_VXMAILBOX_PFACK) + +#define TXGBE_VXMBMEM 0x00C00 /* 16*4B */ + +/** + * PF Registers + **/ +#define TXGBE_PXMAILBOX(i) (0x00600 + (4 * (i))) /* i=[0,63] */ +#define TXGBE_PXMAILBOX_STS ((0x1) << 0) /* Initiate message send to VF */ +#define TXGBE_PXMAILBOX_ACK ((0x1) << 1) /* Ack message recv'd from VF */ +#define TXGBE_PXMAILBOX_VFU ((0x1) << 2) /* VF owns the mailbox buffer */ +#define TXGBE_PXMAILBOX_PFU ((0x1) << 3) /* PF owns the mailbox buffer */ +#define TXGBE_PXMAILBOX_RVFU ((0x1) << 4) /* Reset VFU - used when VF stuck*/ + +#define TXGBE_PXMBMEM(i) (0x5000 + (64 * (i))) /* i=[0,63] */ + +#define TXGBE_VFLRP(i) (0x00490 + (4 * (i))) /* i=[0,1] */ +#define TXGBE_VFLRE(i) (0x004A0 + (4 * (i))) /* i=[0,1] */ +#define TXGBE_VFLREC(i) (0x004A8 + (4 * (i))) /* i=[0,1] */ + +/* SR-IOV specific macros */ +#define TXGBE_MBVFICR(i) (0x00480 + (4 * (i))) /* i=[0,3] */ +#define TXGBE_MBVFICR_INDEX(vf) ((vf) >> 4) +#define TXGBE_MBVFICR_VFREQ_MASK (0x0000FFFF) /* bits for VF messages */ +#define TXGBE_MBVFICR_VFREQ_VF1 (0x00000001) /* bit for VF 1 message */ +#define TXGBE_MBVFICR_VFACK_MASK (0xFFFF0000) /* bits for VF acks */ +#define TXGBE_MBVFICR_VFACK_VF1 (0x00010000) /* bit for VF 1 ack */ + +/** + * Messages + **/ +/* If it's a TXGBE_VF_* msg then it originates in the VF and is sent to the + * PF. The reverse is true if it is TXGBE_PF_*. + * Message ACK's are the value or'd with 0xF0000000 + */ +#define TXGBE_VT_MSGTYPE_ACK 0x80000000 /* Messages below or'd with + * this are the ACK */ +#define TXGBE_VT_MSGTYPE_NACK 0x40000000 /* Messages below or'd with + * this are the NACK */ +#define TXGBE_VT_MSGTYPE_CTS 0x20000000 /* Indicates that VF is still + * clear to send requests */ +#define TXGBE_VT_MSGINFO_SHIFT 16 +/* bits 23:16 are used for extra info for certain messages */ +#define TXGBE_VT_MSGINFO_MASK (0xFF << TXGBE_VT_MSGINFO_SHIFT) + +/* definitions to support mailbox API version negotiation */ + +/* + * each element denotes a version of the API; existing numbers may not + * change; any additions must go at the end + */ +enum txgbe_pfvf_api_rev { + txgbe_mbox_api_null, + txgbe_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */ + txgbe_mbox_api_11, /* API version 1.1, linux/freebsd VF driver */ + txgbe_mbox_api_12, /* API version 1.2, linux/freebsd VF driver */ + txgbe_mbox_api_13, /* API version 1.3, linux/freebsd VF driver */ + txgbe_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */ + txgbe_mbox_api_unknown, /* indicates that API version is not known */ +}; + +/* mailbox API, legacy requests */ +#define TXGBE_VF_RESET 0x01 /* VF requests reset */ +#define TXGBE_VF_SET_MAC_ADDR 0x02 /* VF requests PF to set MAC addr */ +#define TXGBE_VF_SET_MULTICAST 0x03 /* VF requests PF to set MC addr */ +#define TXGBE_VF_SET_VLAN 0x04 /* VF requests PF to set VLAN */ + +/* mailbox API, version 1.0 VF requests */ +#define TXGBE_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */ +#define TXGBE_VF_SET_MACVLAN 0x06 /* VF requests PF for unicast filter */ +#define TXGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */ + +/* mailbox API, version 1.1 VF requests */ +#define TXGBE_VF_GET_QUEUES 0x09 /* get queue configuration */ + +/* mailbox API, version 1.2 VF requests */ +#define TXGBE_VF_GET_RETA 0x0a /* VF request for RETA */ +#define TXGBE_VF_GET_RSS_KEY 0x0b /* get RSS key */ +#define TXGBE_VF_UPDATE_XCAST_MODE 0x0c +#define TXGBE_VF_BACKUP 0x8001 /* VF requests backup */ + +/* mode choices for IXGBE_VF_UPDATE_XCAST_MODE */ +enum txgbevf_xcast_modes { + TXGBEVF_XCAST_MODE_NONE = 0, + TXGBEVF_XCAST_MODE_MULTI, + TXGBEVF_XCAST_MODE_ALLMULTI, + TXGBEVF_XCAST_MODE_PROMISC, +}; + +/* GET_QUEUES return data indices within the mailbox */ +#define TXGBE_VF_TX_QUEUES 1 /* number of Tx queues supported */ +#define TXGBE_VF_RX_QUEUES 2 /* number of Rx queues supported */ +#define TXGBE_VF_TRANS_VLAN 3 /* Indication of port vlan */ +#define TXGBE_VF_DEF_QUEUE 4 /* Default queue offset */ + +/* length of permanent address message returned from PF */ +#define TXGBE_VF_PERMADDR_MSG_LEN 4 +/* word in permanent address message with the current multicast type */ +#define TXGBE_VF_MC_TYPE_WORD 3 + +#define TXGBE_PF_CONTROL_MSG 0x0100 /* PF control message */ + +/* mailbox API, version 2.0 VF requests */ +#define TXGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */ +#define TXGBE_VF_GET_QUEUES 0x09 /* get queue configuration */ +#define TXGBE_VF_ENABLE_MACADDR 0x0A /* enable MAC address */ +#define TXGBE_VF_DISABLE_MACADDR 0x0B /* disable MAC address */ +#define TXGBE_VF_GET_MACADDRS 0x0C /* get all configured MAC addrs */ +#define TXGBE_VF_SET_MCAST_PROMISC 0x0D /* enable multicast promiscuous */ +#define TXGBE_VF_GET_MTU 0x0E /* get bounds on MTU */ +#define TXGBE_VF_SET_MTU 0x0F /* set a specific MTU */ + +/* mailbox API, version 2.0 PF requests */ +#define TXGBE_PF_TRANSPARENT_VLAN 0x0101 /* enable transparent vlan */ + +#define TXGBE_VF_MBX_INIT_TIMEOUT 2000 /* number of retries on mailbox */ +#define TXGBE_VF_MBX_INIT_DELAY 500 /* microseconds between retries */ + +int txgbe_read_mbx(struct txgbe_hw *, u32 *, u16, u16); +int txgbe_write_mbx(struct txgbe_hw *, u32 *, u16, u16); +int txgbe_read_posted_mbx(struct txgbe_hw *, u32 *, u16, u16); +int txgbe_write_posted_mbx(struct txgbe_hw *, u32 *, u16, u16); +int txgbe_check_for_msg(struct txgbe_hw *, u16); +int txgbe_check_for_ack(struct txgbe_hw *, u16); +int txgbe_check_for_rst(struct txgbe_hw *, u16); +void txgbe_init_mbx_ops(struct txgbe_hw *hw); +void txgbe_init_mbx_params_vf(struct txgbe_hw *); +void txgbe_init_mbx_params_pf(struct txgbe_hw *); + +#endif /* _TXGBE_MBX_H_ */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_mtd.c b/drivers/net/ethernet/netswift/txgbe/txgbe_mtd.c new file mode 100644 index 0000000000000..5c29a28af0754 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_mtd.c @@ -0,0 +1,1366 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + + +#include "txgbe.h" + +MTD_STATUS mtdHwXmdioWrite( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 reg, + IN MTD_U16 value) +{ + MTD_STATUS result = MTD_OK; + + if (devPtr->fmtdWriteMdio != NULL) { + if (devPtr->fmtdWriteMdio(devPtr, port, dev, reg, value) == MTD_FAIL) { + result = MTD_FAIL; + MTD_DBG_INFO("fmtdWriteMdio 0x%04X failed to port=%d, dev=%d, reg=0x%04X\n", + (unsigned)(value), (unsigned)port, (unsigned)dev, (unsigned)reg); + } + } else + result = MTD_FAIL; + + return result; +} + +MTD_STATUS mtdHwXmdioRead( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 reg, + OUT MTD_U16 * data) +{ + MTD_STATUS result = MTD_OK; + + if (devPtr->fmtdReadMdio != NULL) { + if (devPtr->fmtdReadMdio(devPtr, port, dev, reg, data) == MTD_FAIL) { + result = MTD_FAIL; + MTD_DBG_INFO("fmtdReadMdio failed from port=%d, dev=%d, reg=0x%04X\n", + (unsigned)port, (unsigned)dev, (unsigned)reg); + } + } else + result = MTD_FAIL; + + return result; +} + +/* + This macro calculates the mask for partial read/write of register's data. +*/ +#define MTD_CALC_MASK(fieldOffset, fieldLen, mask) do {\ + if ((fieldLen + fieldOffset) >= 16) \ + mask = (0 - (1 << fieldOffset)); \ + else \ + mask = (((1 << (fieldLen + fieldOffset))) - (1 << fieldOffset));\ + } while (0) + +MTD_STATUS mtdHwGetPhyRegField( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 regAddr, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 * data) +{ + MTD_U16 tmpData; + MTD_STATUS retVal; + + retVal = mtdHwXmdioRead(devPtr, port, dev, regAddr, &tmpData); + + if (retVal != MTD_OK) { + MTD_DBG_ERROR("Failed to read register \n"); + return MTD_FAIL; + } + + mtdHwGetRegFieldFromWord(tmpData, fieldOffset, fieldLength, data); + + MTD_DBG_INFO("fOff %d, fLen %d, data 0x%04X.\n", (int)fieldOffset, + (int)fieldLength, (int)*data); + + return MTD_OK; +} + +MTD_STATUS mtdHwSetPhyRegField( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 regAddr, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + IN MTD_U16 data) +{ + MTD_U16 tmpData, newData; + MTD_STATUS retVal; + + retVal = mtdHwXmdioRead(devPtr, port, dev, regAddr, &tmpData); + if (retVal != MTD_OK) { + MTD_DBG_ERROR("Failed to read register \n"); + return MTD_FAIL; + } + + mtdHwSetRegFieldToWord(tmpData, data, fieldOffset, fieldLength, &newData); + + retVal = mtdHwXmdioWrite(devPtr, port, dev, regAddr, newData); + + if (retVal != MTD_OK) { + MTD_DBG_ERROR("Failed to write register \n"); + return MTD_FAIL; + } + + MTD_DBG_INFO("fieldOff %d, fieldLen %d, data 0x%x.\n", fieldOffset, + fieldLength, data); + + return MTD_OK; +} + +MTD_STATUS mtdHwGetRegFieldFromWord( + IN MTD_U16 regData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data) +{ + /* Bits mask to be read */ + MTD_U16 mask; + + MTD_CALC_MASK(fieldOffset, fieldLength, mask); + + *data = (regData & mask) >> fieldOffset; + + return MTD_OK; +} + +MTD_STATUS mtdHwSetRegFieldToWord( + IN MTD_U16 regData, + IN MTD_U16 bitFieldData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data) +{ + /* Bits mask to be read */ + MTD_U16 mask; + + MTD_CALC_MASK(fieldOffset, fieldLength, mask); + + /* Set the desired bits to 0. */ + regData &= ~mask; + /* Set the given data into the above reset bits.*/ + regData |= ((bitFieldData << fieldOffset) & mask); + + *data = regData; + + return MTD_OK; +} + +MTD_STATUS mtdWait(IN MTD_UINT x) +{ + msleep(x); + return MTD_OK; +} + +/* internal device registers */ +MTD_STATUS mtdCheckDeviceCapabilities( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL * phyHasMacsec, + OUT MTD_BOOL * phyHasCopperInterface, + OUT MTD_BOOL * isE20X0Device) +{ + MTD_U8 major, minor, inc, test; + MTD_U16 abilities; + + *phyHasMacsec = MTD_TRUE; + *phyHasCopperInterface = MTD_TRUE; + *isE20X0Device = MTD_FALSE; + + if (mtdGetFirmwareVersion(devPtr, port, &major, &minor, &inc, &test) == MTD_FAIL) { + /* firmware not running will produce this case */ + major = minor = inc = test = 0; + } + + if (major == 0 && minor == 0 && inc == 0 && test == 0) { + /* no code loaded into internal processor */ + /* have to read it from the device itself the hard way */ + MTD_U16 reg2, reg3; + MTD_U16 index, index2; + MTD_U16 temp; + MTD_U16 bit16thru23[8]; + + /* save these registers */ + /* ATTEMPT(mtdHwXmdioRead(devPtr,port,MTD_REG_CCCR9,&reg1)); some revs can't read this register reliably */ + ATTEMPT(mtdHwXmdioRead(devPtr, port, 31, 0xF0F0, &reg2)); + ATTEMPT(mtdHwXmdioRead(devPtr, port, 31, 0xF0F5, &reg3)); + + /* clear these bit indications */ + for (index = 0; index < 8; index++) { + bit16thru23[index] = 0; + } + + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF05E, 0x0300)); /* force clock on */ + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F0, 0x0102)); /* set access */ + mtdWait(1); + + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x06D3)); /* sequence needed */ + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0593)); + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0513)); + mtdWait(1); + + index = 0; + index2 = 0; + while (index < 24) { + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0413)); + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0513)); + mtdWait(1); + + if (index >= 16) { + ATTEMPT(mtdHwXmdioRead(devPtr, port, 31, 0xF0F5, &bit16thru23[index2++])); + } else { + ATTEMPT(mtdHwXmdioRead(devPtr, port, 31, 0xF0F5, &temp)); + } + mtdWait(1); + index++; + } + + if (((bit16thru23[0] >> 11) & 1) | ((bit16thru23[1] >> 11) & 1)) { + *phyHasMacsec = MTD_FALSE; + } + if (((bit16thru23[4] >> 11) & 1) | ((bit16thru23[5] >> 11) & 1)) { + *phyHasCopperInterface = MTD_FALSE; + } + + if (((bit16thru23[6] >> 11) & 1) | ((bit16thru23[7] >> 11) & 1)) { + *isE20X0Device = MTD_TRUE; + } + + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0413)); + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0493)); + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0413)); + mtdWait(1); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, 0x0513)); + mtdWait(1); + + /* restore the registers */ + /* ATTEMPT(mtdHwXmdioWrite(devPtr,port,MTD_REG_CCCR9,reg1)); Some revs can't read this register reliably */ + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF05E, 0x5440)); /* set back to reset value */ + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F0, reg2)); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 31, 0xF0F5, reg3)); + + } else { + /* should just read it from the firmware status register */ + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_XG_EXT_STATUS, &abilities)); + if (abilities & (1 << 12)) { + *phyHasMacsec = MTD_FALSE; + } + + if (abilities & (1 << 13)) { + *phyHasCopperInterface = MTD_FALSE; + } + + if (abilities & (1 << 14)) { + *isE20X0Device = MTD_TRUE; + } + + } + + return MTD_OK; +} + +MTD_STATUS mtdIsPhyReadyAfterReset( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL * phyReady) +{ + MTD_U16 val; + + *phyReady = MTD_FALSE; + + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_IEEE_PMA_CTRL1, 15, 1, &val)); + + if (val) { + /* if still in reset return '0' (could be coming up, or disabled by download mode) */ + *phyReady = MTD_FALSE; + } else { + /* if Phy is in normal operation */ + *phyReady = MTD_TRUE; + } + + return MTD_OK; +} + +MTD_STATUS mtdSoftwareReset( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 timeoutMs) +{ + MTD_U16 counter; + MTD_BOOL phyReady; + /* bit self clears when done */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_IEEE_PMA_CTRL1, 15, 1, 1)); + + if (timeoutMs) { + counter = 0; + ATTEMPT(mtdIsPhyReadyAfterReset(devPtr, port, &phyReady)); + while (phyReady == MTD_FALSE && counter <= timeoutMs) { + ATTEMPT(mtdWait(1)); + ATTEMPT(mtdIsPhyReadyAfterReset(devPtr, port, &phyReady)); + counter++; + } + + if (counter < timeoutMs) { + return MTD_OK; + } else { + /* timed out without becoming ready */ + return MTD_FAIL; + } + } else { + return MTD_OK; + } +} + +MTD_STATUS mtdIsPhyReadyAfterHardwareReset( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *phyReady) +{ + MTD_U16 val; + + *phyReady = MTD_FALSE; + + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_PORT_CTRL, 14, 1, &val)); + + if (val) { + /* if still in reset return '0' (could be coming up, or disabled by download mode) */ + *phyReady = MTD_FALSE; + } else { + /* if Phy is in normal operation */ + *phyReady = MTD_TRUE; + } + return MTD_OK; +} + +MTD_STATUS mtdHardwareReset( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 timeoutMs) +{ + MTD_U16 counter; + MTD_BOOL phyReady; + + /* bit self clears when done */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_PORT_CTRL, 14, 1, 1)); + + if (timeoutMs) { + counter = 0; + ATTEMPT(mtdIsPhyReadyAfterHardwareReset(devPtr, port, &phyReady)); + while (phyReady == MTD_FALSE && counter <= timeoutMs) { + ATTEMPT(mtdWait(1)); + ATTEMPT(mtdIsPhyReadyAfterHardwareReset(devPtr, port, &phyReady)); + counter++; + } + if (counter < timeoutMs) + return MTD_OK; + else + return MTD_FAIL; /* timed out without becoming ready */ + } else { + return MTD_OK; + } +} + +/****************************************************************************/ + +/****************************************************************************/ +/******************************************************************* + 802.3 Clause 28 and Clause 45 + Autoneg Related Control & Status + *******************************************************************/ +/******************************************************************* + Enabling speeds for autonegotiation + Reading speeds enabled for autonegotation + Set/get pause advertisement for autonegotiation + Other Autoneg-related Control and Status (restart,disable/enable, + force master/slave/auto, checking for autoneg resolution, etc.) + *******************************************************************/ + +#define MTD_7_0010_SPEED_BIT_LENGTH 4 +#define MTD_7_0010_SPEED_BIT_POS 5 +#define MTD_7_8000_SPEED_BIT_LENGTH 2 +#define MTD_7_8000_SPEED_BIT_POS 8 +#define MTD_7_0020_SPEED_BIT_LENGTH 1 /* for 88X32X0 family and 88X33X0 family */ +#define MTD_7_0020_SPEED_BIT_POS 12 +#define MTD_7_0020_SPEED_BIT_LENGTH2 2 /* for 88X33X0 family A0 revision 2.5/5G */ +#define MTD_7_0020_SPEED_BIT_POS2 7 + +/* Bit defines for speed bits */ +#define MTD_FORCED_SPEEDS_BIT_MASK (MTD_SPEED_10M_HD_AN_DIS | MTD_SPEED_10M_FD_AN_DIS | \ + MTD_SPEED_100M_HD_AN_DIS | MTD_SPEED_100M_FD_AN_DIS) +#define MTD_LOWER_BITS_MASK 0x000F /* bits in base page */ +#define MTD_GIG_SPEED_POS 4 +#define MTD_XGIG_SPEED_POS 6 +#define MTD_2P5G_SPEED_POS 11 +#define MTD_5G_SPEED_POS 12 +#define MTD_GET_1000BT_BITS(_speedBits) ((_speedBits & (MTD_SPEED_1GIG_HD | MTD_SPEED_1GIG_FD)) \ + >> MTD_GIG_SPEED_POS) /* 1000BT bits */ +#define MTD_GET_10GBT_BIT(_speedBits) ((_speedBits & MTD_SPEED_10GIG_FD) \ + >> MTD_XGIG_SPEED_POS) /* 10GBT bit setting */ +#define MTD_GET_2P5GBT_BIT(_speedBits) ((_speedBits & MTD_SPEED_2P5GIG_FD) \ + >> MTD_2P5G_SPEED_POS) /* 2.5GBT bit setting */ +#define MTD_GET_5GBT_BIT(_speedBits) ((_speedBits & MTD_SPEED_5GIG_FD) \ + >> MTD_5G_SPEED_POS) /* 5GBT bit setting */ + +MTD_STATUS mtdEnableSpeeds( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 speed_bits, + IN MTD_BOOL anRestart) +{ + MTD_BOOL speedForced; + MTD_U16 dummy; + MTD_U16 tempRegValue; + + if (speed_bits & MTD_FORCED_SPEEDS_BIT_MASK) { + /* tried to force the speed, this function is for autonegotiation control */ + return MTD_FAIL; + } + + if (MTD_IS_X32X0_BASE(devPtr->deviceId) && ((speed_bits & MTD_SPEED_2P5GIG_FD) || + (speed_bits & MTD_SPEED_5GIG_FD))) { + return MTD_FAIL; /* tried to advertise 2.5G/5G on a 88X32X0 chipset */ + } + + if (MTD_IS_X33X0_BASE(devPtr->deviceId)) { + const MTD_U16 chipRev = (devPtr->deviceId & 0xf); /* get the chip revision */ + + if (chipRev == 9 || chipRev == 5 || chipRev == 1 || /* Z2 chip revisions */ + chipRev == 8 || chipRev == 4 || chipRev == 0) /* Z1 chip revisions */ { + /* this is an X33X0 or E20X0 Z2/Z1 device and not supported (not compatible with A0) */ + return MTD_FAIL; + } + } + + /* Enable AN and set speed back to power-on default in case previously forced + Only do it if forced, to avoid an extra/unnecessary soft reset */ + ATTEMPT(mtdGetForcedSpeed(devPtr, port, &speedForced, &dummy)); + if (speedForced) { + ATTEMPT(mtdUndoForcedSpeed(devPtr, port, MTD_FALSE)); + } + + if (speed_bits == MTD_ADV_NONE) { + /* Set all speeds to be disabled + Take care of bits in 7.0010 (advertisement register, 10BT and 100BT bits) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x0010,\ + MTD_7_0010_SPEED_BIT_POS, MTD_7_0010_SPEED_BIT_LENGTH, \ + 0)); + + /* Take care of speed bits in 7.8000 (1000BASE-T speed bits) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x8000,\ + MTD_7_8000_SPEED_BIT_POS, MTD_7_8000_SPEED_BIT_LENGTH, \ + 0)); + + /* Now take care of bit in 7.0020 (10GBASE-T) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x0020,\ + MTD_7_0020_SPEED_BIT_POS, MTD_7_0020_SPEED_BIT_LENGTH, 0)); + + if (MTD_IS_X33X0_BASE(devPtr->deviceId)) { + /* Now take care of bits in 7.0020 (2.5G, 5G speed bits) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x0020,\ + MTD_7_0020_SPEED_BIT_POS2, MTD_7_0020_SPEED_BIT_LENGTH2, 0)); + } + } else { + /* Take care of bits in 7.0010 (advertisement register, 10BT and 100BT bits) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x0010,\ + MTD_7_0010_SPEED_BIT_POS, MTD_7_0010_SPEED_BIT_LENGTH, \ + (speed_bits & MTD_LOWER_BITS_MASK))); + + /* Take care of speed bits in 7.8000 (1000BASE-T speed bits) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x8000,\ + MTD_7_8000_SPEED_BIT_POS, MTD_7_8000_SPEED_BIT_LENGTH, \ + MTD_GET_1000BT_BITS(speed_bits))); + + + /* Now take care of bits in 7.0020 (10GBASE-T first) */ + ATTEMPT(mtdHwXmdioRead(devPtr, port, 7, 0x0020, &tempRegValue)); + ATTEMPT(mtdHwSetRegFieldToWord(tempRegValue, MTD_GET_10GBT_BIT(speed_bits),\ + MTD_7_0020_SPEED_BIT_POS, MTD_7_0020_SPEED_BIT_LENGTH, \ + &tempRegValue)); + + if (MTD_IS_X33X0_BASE(devPtr->deviceId)) { + /* Now take care of 2.5G bit in 7.0020 */ + ATTEMPT(mtdHwSetRegFieldToWord(tempRegValue, MTD_GET_2P5GBT_BIT(speed_bits),\ + 7, 1, \ + &tempRegValue)); + + /* Now take care of 5G bit in 7.0020 */ + ATTEMPT(mtdHwSetRegFieldToWord(tempRegValue, MTD_GET_5GBT_BIT(speed_bits),\ + 8, 1, \ + &tempRegValue)); + } + + /* Now write result back to 7.0020 */ + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 7, 0x0020, tempRegValue)); + + if (MTD_GET_10GBT_BIT(speed_bits) || + MTD_GET_2P5GBT_BIT(speed_bits) || + MTD_GET_5GBT_BIT(speed_bits)) { + /* Set XNP on if any bit that required it was set */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0, 13, 1, 1)); + } + } + + if (anRestart) { + return ((MTD_STATUS)(mtdAutonegEnable(devPtr, port) || + mtdAutonegRestart(devPtr, port))); + } + + return MTD_OK; +} + +MTD_STATUS mtdUndoForcedSpeed( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_BOOL anRestart) +{ + + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_IEEE_PMA_CTRL1, 13, 1, 1)); + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_IEEE_PMA_CTRL1, 6, 1, 1)); + + /* when speed bits are changed, T unit sw reset is required, wait until phy is ready */ + ATTEMPT(mtdSoftwareReset(devPtr, port, 1000)); + + if (anRestart) { + return ((MTD_STATUS)(mtdAutonegEnable(devPtr, port) || + mtdAutonegRestart(devPtr, port))); + } + + return MTD_OK; +} + + +MTD_STATUS mtdGetForcedSpeed( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *speedIsForced, + OUT MTD_U16 *forcedSpeed) +{ + MTD_U16 val, bit0, bit1, forcedSpeedBits, duplexBit; + MTD_BOOL anDisabled; + + *speedIsForced = MTD_FALSE; + *forcedSpeed = MTD_ADV_NONE; + + /* check if 7.0.12 is 0 or 1 (disabled or enabled) */ + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, 7, 0, 12, 1, &val)); + + (val) ? (anDisabled = MTD_FALSE) : (anDisabled = MTD_TRUE); + + if (anDisabled) { + /* autoneg is disabled, see if it's forced to one of the speeds that work without AN */ + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_IEEE_PMA_CTRL1, 6, 1, &bit0)); + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_IEEE_PMA_CTRL1, 13, 1, &bit1)); + + /* now read the duplex bit setting */ + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, 7, 0x8000, 4, 1, &duplexBit)); + + forcedSpeedBits = 0; + forcedSpeedBits = bit0 | (bit1 << 1); + + if (forcedSpeedBits == 0) { + /* it's set to 10BT */ + if (duplexBit) { + *speedIsForced = MTD_TRUE; + *forcedSpeed = MTD_SPEED_10M_FD_AN_DIS; + } else { + *speedIsForced = MTD_TRUE; + *forcedSpeed = MTD_SPEED_10M_HD_AN_DIS; + } + } else if (forcedSpeedBits == 2) { + /* it's set to 100BT */ + if (duplexBit) { + *speedIsForced = MTD_TRUE; + *forcedSpeed = MTD_SPEED_100M_FD_AN_DIS; + } else { + *speedIsForced = MTD_TRUE; + *forcedSpeed = MTD_SPEED_100M_HD_AN_DIS; + } + } + /* else it's set to 1000BT or 10GBT which require AN to work */ + } + + return MTD_OK; +} + +MTD_STATUS mtdAutonegRestart( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port) +{ + /* set 7.0.9, restart AN */ + return (mtdHwSetPhyRegField(devPtr, port, 7, 0, + 9, 1, 1)); +} + + +MTD_STATUS mtdAutonegEnable( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port) +{ + /* set 7.0.12=1, enable AN */ + return (mtdHwSetPhyRegField(devPtr, port, 7, 0, + 12, 1, 1)); +} + +/****************************************************************************** + MTD_STATUS mtdAutonegIsSpeedDuplexResolutionDone + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *anSpeedResolutionDone + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + anSpeedResolutionDone - one of the following + MTD_TRUE if speed/duplex is resolved + MTD_FALSE if speed/duplex is not resolved + + Returns: + MTD_OK or MTD_FAIL, if query was successful or not + + Description: + Queries register 3.8008.11 Speed/Duplex resolved to see if autonegotiation + is resolved or in progress. See note below. This function is only to be + called if autonegotation is enabled and speed is not forced. + + anSpeedResolutionDone being MTD_TRUE, only indicates if AN has determined + the speed and duplex bits in 3.8008, which will indicate what registers + to read later for AN resolution after AN has completed. + + Side effects: + None + + Notes/Warnings: + If autonegotiation is disabled or speed is forced, this function returns + MTD_TRUE. + +******************************************************************************/ +MTD_STATUS mtdAutonegIsSpeedDuplexResolutionDone( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *anSpeedResolutionDone) +{ + MTD_U16 val; + + /* read speed/duplex resolution done bit in 3.8008 bit 11 */ + if (mtdHwGetPhyRegField(devPtr, port, + 3, 0x8008, 11, 1, &val) == MTD_FAIL) { + *anSpeedResolutionDone = MTD_FALSE; + return MTD_FAIL; + } + + (val) ? (*anSpeedResolutionDone = MTD_TRUE) : (*anSpeedResolutionDone = MTD_FALSE); + + return MTD_OK; +} + + +MTD_STATUS mtdGetAutonegSpeedDuplexResolution( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U16 *speedResolution) +{ + MTD_U16 val, speed, speed2, duplex; + MTD_BOOL resDone; + + *speedResolution = MTD_ADV_NONE; + + /* check if AN is enabled */ + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, \ + 7, 0, 12, 1, &val)); + + if (val) { + /* an is enabled, check if speed is resolved */ + ATTEMPT(mtdAutonegIsSpeedDuplexResolutionDone(devPtr, port, &resDone)); + + if (resDone) { + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, \ + 3, 0x8008, 14, 2, &speed)); + + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, \ + 3, 0x8008, 13, 1, &duplex)); + + switch (speed) { + case MTD_CU_SPEED_10_MBPS: + if (duplex) { + *speedResolution = MTD_SPEED_10M_FD; + } else { + *speedResolution = MTD_SPEED_10M_HD; + } + break; + case MTD_CU_SPEED_100_MBPS: + if (duplex) { + *speedResolution = MTD_SPEED_100M_FD; + } else { + *speedResolution = MTD_SPEED_100M_HD; + } + break; + case MTD_CU_SPEED_1000_MBPS: + if (duplex) { + *speedResolution = MTD_SPEED_1GIG_FD; + } else { + *speedResolution = MTD_SPEED_1GIG_HD; + } + break; + case MTD_CU_SPEED_10_GBPS: /* also MTD_CU_SPEED_NBT */ + if (MTD_IS_X32X0_BASE(devPtr->deviceId)) { + *speedResolution = MTD_SPEED_10GIG_FD; /* 10G has only full duplex, ignore duplex bit */ + } else { + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, \ + 3, 0x8008, 2, 2, &speed2)); + + switch (speed2) { + case MTD_CU_SPEED_NBT_10G: + *speedResolution = MTD_SPEED_10GIG_FD; + break; + + case MTD_CU_SPEED_NBT_5G: + *speedResolution = MTD_SPEED_5GIG_FD; + break; + + case MTD_CU_SPEED_NBT_2P5G: + *speedResolution = MTD_SPEED_2P5GIG_FD; + break; + + default: + /* this is an error */ + return MTD_FAIL; + break; + } + } + break; + default: + /* this is an error */ + return MTD_FAIL; + break; + } + + } + + } + + return MTD_OK; +} + +MTD_STATUS mtdSetPauseAdvertisement( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U32 pauseType, + IN MTD_BOOL anRestart) +{ + /* sets/clears bits 11, 10 (A6,A5 in the tech bit field of 7.16) */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 7, 0x0010, \ + 10, 2, (MTD_U16)pauseType)); + + if (anRestart) { + return ((MTD_STATUS)(mtdAutonegEnable(devPtr, port) || + mtdAutonegRestart(devPtr, port))); + } + + return MTD_OK; +} + + +/****************************************************************************** + MTD_STATUS mtdAutonegIsCompleted + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *anStatusReady + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + anStatusReady - one of the following + MTD_TRUE if AN status registers are available to be read (7.1, 7.33, 7.32769, etc.) + MTD_FALSE if AN is not completed and AN status registers may contain old data + + Returns: + MTD_OK or MTD_FAIL, if query was successful or not + + Description: + Checks 7.1.5 for 1. If 1, returns MTD_TRUE. If not, returns MTD_FALSE. Many + autonegotiation status registers are not valid unless AN has completed + meaning 7.1.5 = 1. + + Side effects: + None + + Notes/Warnings: + Call this function before reading 7.33 or 7.32769 to check for master/slave + resolution or other negotiated parameters which are negotiated during + autonegotiation like fast retrain, fast retrain type, etc. + +******************************************************************************/ +MTD_STATUS mtdAutonegIsCompleted( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *anStatusReady) +{ + MTD_U16 val; + + /* read an completed, 7.1.5 bit */ + if (mtdHwGetPhyRegField(devPtr, port, + 7, 1, 5, 1, &val) == MTD_FAIL) { + *anStatusReady = MTD_FALSE; + return MTD_FAIL; + } + + (val) ? (*anStatusReady = MTD_TRUE) : (*anStatusReady = MTD_FALSE); + + return MTD_OK; +} + + +MTD_STATUS mtdGetLPAdvertisedPause( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U8 *pauseBits) +{ + MTD_U16 val; + MTD_BOOL anStatusReady; + + /* Make sure AN is complete */ + ATTEMPT(mtdAutonegIsCompleted(devPtr, port, &anStatusReady)); + + if (anStatusReady == MTD_FALSE) { + *pauseBits = MTD_CLEAR_PAUSE; + return MTD_FAIL; + } + + /* get bits 11, 10 (A6,A5 in the tech bit field of 7.19) */ + if (mtdHwGetPhyRegField(devPtr, port, 7, 19, + 10, 2, &val) == MTD_FAIL) { + *pauseBits = MTD_CLEAR_PAUSE; + return MTD_FAIL; + } + + *pauseBits = (MTD_U8)val; + + return MTD_OK; +} + +/******************************************************************* + Firmware Version + *******************************************************************/ +/****************************************************************************/ +MTD_STATUS mtdGetFirmwareVersion( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U8 *major, + OUT MTD_U8 *minor, + OUT MTD_U8 *inc, + OUT MTD_U8 *test) +{ + MTD_U16 reg_49169, reg_49170; + + ATTEMPT(mtdHwXmdioRead(devPtr, port, 1, 49169, &reg_49169)); + + *major = (reg_49169 & 0xFF00) >> 8; + *minor = (reg_49169 & 0x00FF); + + ATTEMPT(mtdHwXmdioRead(devPtr, port, 1, 49170, &reg_49170)); + + *inc = (reg_49170 & 0xFF00) >> 8; + *test = (reg_49170 & 0x00FF); + + /* firmware is not running if all 0's */ + if (!(*major || *minor || *inc || *test)) { + return MTD_FAIL; + } + return MTD_OK; +} + + +MTD_STATUS mtdGetPhyRevision( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_DEVICE_ID * phyRev, + OUT MTD_U8 *numPorts, + OUT MTD_U8 *thisPort) +{ + MTD_U16 temp = 0, tryCounter, temp2, baseType, reportedHwRev; + MTD_U16 revision = 0, numports, thisport, readyBit, fwNumports, fwThisport; + MTD_BOOL registerExists, regReady, hasMacsec, hasCopper, isE20X0Device; + MTD_U8 major, minor, inc, test; + + *phyRev = MTD_REV_UNKNOWN; /* in case we have any failed ATTEMPT below, will return unknown */ + *numPorts = 0; + *thisPort = 0; + + /* first check base type of device, get reported rev and port info */ + ATTEMPT(mtdHwXmdioRead(devPtr, port, 3, 0xD00D, &temp)); + baseType = ((temp & 0xFC00) >> 6); + reportedHwRev = (temp & 0x000F); + numports = ((temp & 0x0380) >> 7) + 1; + thisport = ((temp & 0x0070) >> 4); + + /* find out if device has macsec/ptp, copper unit or is an E20X0-type device */ + ATTEMPT(mtdCheckDeviceCapabilities(devPtr, port, &hasMacsec, &hasCopper, &isE20X0Device)); + + /* check if internal processor firmware is up and running, and if so, easier to get info */ + if (mtdGetFirmwareVersion(devPtr, port, &major, &minor, &inc, &test) == MTD_FAIL) { + major = minor = inc = test = 0; /* this is expected if firmware is not loaded/running */ + } + + if (major == 0 && minor == 0 && inc == 0 && test == 0) { + /* no firmware running, have to verify device revision */ + if (MTD_IS_X32X0_BASE(baseType)) { + /* A0 and Z2 report the same revision, need to check which is which */ + if (reportedHwRev == 1) { + /* need to figure out if it's A0 or Z2 */ + /* remove internal reset */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 3, 0xD801, 5, 1, 1)); + + /* wait until it's ready */ + regReady = MTD_FALSE; + tryCounter = 0; + while (regReady == MTD_FALSE && tryCounter++ < 10) { + ATTEMPT(mtdWait(1)); /* timeout is set to 10 ms */ + ATTEMPT(mtdHwGetPhyRegField(devPtr, port, 3, 0xD007, 6, 1, &readyBit)); + if (readyBit == 1) { + regReady = MTD_TRUE; + } + } + + if (regReady == MTD_FALSE) { + /* timed out, can't tell for sure what rev this is */ + *numPorts = 0; + *thisPort = 0; + *phyRev = MTD_REV_UNKNOWN; + return MTD_FAIL; + } + + /* perform test */ + registerExists = MTD_FALSE; + ATTEMPT(mtdHwXmdioRead(devPtr, port, 3, 0x8EC6, &temp)); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, 3, 0x8EC6, 0xA5A5)); + ATTEMPT(mtdHwXmdioRead(devPtr, port, 3, 0x8EC6, &temp2)); + + /* put back internal reset */ + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 3, 0xD801, 5, 1, 0)); + + if (temp == 0 && temp2 == 0xA5A5) { + registerExists = MTD_TRUE; + } + + if (registerExists == MTD_TRUE) { + revision = 2; /* this is actually QA0 */ + } else { + revision = reportedHwRev; /* this is a QZ2 */ + } + + } else { + /* it's not A0 or Z2, use what's reported by the hardware */ + revision = reportedHwRev; + } + } else if (MTD_IS_X33X0_BASE(baseType)) { + /* all 33X0 devices report correct revision */ + revision = reportedHwRev; + } + + /* have to use what's reported by the hardware */ + *numPorts = (MTD_U8)numports; + *thisPort = (MTD_U8)thisport; + } else { + /* there is firmware loaded/running in internal processor */ + /* can get device revision reported by firmware */ + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_T_UNIT_PMA_PMD, MTD_TUNIT_PHY_REV_INFO_REG, &temp)); + ATTEMPT(mtdHwGetRegFieldFromWord(temp, 0, 4, &revision)); + ATTEMPT(mtdHwGetRegFieldFromWord(temp, 4, 3, &fwNumports)); + ATTEMPT(mtdHwGetRegFieldFromWord(temp, 7, 3, &fwThisport)); + if (fwNumports == numports && fwThisport == thisport) { + *numPorts = (MTD_U8)numports; + *thisPort = (MTD_U8)thisport; + } else { + *phyRev = MTD_REV_UNKNOWN; + *numPorts = 0; + *thisPort = 0; + return MTD_FAIL; /* firmware and hardware are reporting different values */ + } + } + + /* now have correct information to build up the MTD_DEVICE_ID */ + if (MTD_IS_X32X0_BASE(baseType)) { + temp = MTD_X32X0_BASE; + } else if (MTD_IS_X33X0_BASE(baseType)) { + temp = MTD_X33X0_BASE; + } else { + *phyRev = MTD_REV_UNKNOWN; + *numPorts = 0; + *thisPort = 0; + return MTD_FAIL; + } + + if (hasMacsec) { + temp |= MTD_MACSEC_CAPABLE; + } + + if (hasCopper) { + temp |= MTD_COPPER_CAPABLE; + } + + if (MTD_IS_X33X0_BASE(baseType) && isE20X0Device) { + temp |= MTD_E20X0_DEVICE; + } + + temp |= (revision & 0xF); + + *phyRev = (MTD_DEVICE_ID)temp; + + /* make sure we got a good one */ + if (mtdIsPhyRevisionValid(*phyRev) == MTD_OK) { + return MTD_OK; + } else { + return MTD_FAIL; /* unknown or unsupported, if recognized but unsupported, value is still valid */ + } +} + +MTD_STATUS mtdIsPhyRevisionValid(IN MTD_DEVICE_ID phyRev) +{ + switch (phyRev) { + /* list must match MTD_DEVICE_ID */ + case MTD_REV_3240P_Z2: + case MTD_REV_3240P_A0: + case MTD_REV_3240P_A1: + case MTD_REV_3220P_Z2: + case MTD_REV_3220P_A0: + + case MTD_REV_3240_Z2: + case MTD_REV_3240_A0: + case MTD_REV_3240_A1: + case MTD_REV_3220_Z2: + case MTD_REV_3220_A0: + + case MTD_REV_3310P_A0: + case MTD_REV_3320P_A0: + case MTD_REV_3340P_A0: + case MTD_REV_3310_A0: + case MTD_REV_3320_A0: + case MTD_REV_3340_A0: + + case MTD_REV_E2010P_A0: + case MTD_REV_E2020P_A0: + case MTD_REV_E2040P_A0: + case MTD_REV_E2010_A0: + case MTD_REV_E2020_A0: + case MTD_REV_E2040_A0: + + case MTD_REV_2340P_A1: + case MTD_REV_2320P_A0: + case MTD_REV_2340_A1: + case MTD_REV_2320_A0: + return MTD_OK; + break; + + /* unsupported PHYs */ + case MTD_REV_3310P_Z1: + case MTD_REV_3320P_Z1: + case MTD_REV_3340P_Z1: + case MTD_REV_3310_Z1: + case MTD_REV_3320_Z1: + case MTD_REV_3340_Z1: + + case MTD_REV_3310P_Z2: + case MTD_REV_3320P_Z2: + case MTD_REV_3340P_Z2: + case MTD_REV_3310_Z2: + case MTD_REV_3320_Z2: + case MTD_REV_3340_Z2: + + + case MTD_REV_E2010P_Z2: + case MTD_REV_E2020P_Z2: + case MTD_REV_E2040P_Z2: + case MTD_REV_E2010_Z2: + case MTD_REV_E2020_Z2: + case MTD_REV_E2040_Z2: + default: + return MTD_FAIL; /* is either MTD_REV_UNKNOWN or not in the above list */ + break; + } +} + +/* mtdCunit.c */ +MTD_STATUS mtdCunitSwReset( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port) +{ + return mtdHwSetPhyRegField(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_PORT_CTRL, 15, 1, 1); +} + +/* mtdHxunit.c */ +MTD_STATUS mtdRerunSerdesAutoInitializationUseAutoMode( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port) +{ + MTD_U16 temp, temp2, temp3; + MTD_U16 waitCounter; + + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_T_UNIT_AN, MTD_SERDES_CTRL_STATUS, &temp)); + + ATTEMPT(mtdHwSetRegFieldToWord(temp, 3, 14, 2, &temp2)); /* execute bits and disable bits set */ + + ATTEMPT(mtdHwXmdioWrite(devPtr, port, MTD_T_UNIT_AN, MTD_SERDES_CTRL_STATUS, temp2)); + + /* wait for it to be done */ + waitCounter = 0; + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_T_UNIT_AN, MTD_SERDES_CTRL_STATUS, &temp3)); + while ((temp3 & 0x8000) && (waitCounter < 100)) { + ATTEMPT(mtdWait(1)); + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_T_UNIT_AN, MTD_SERDES_CTRL_STATUS, &temp3)); + waitCounter++; + } + + /* if speed changed, let it stay. that's the speed that it ended up changing to/serdes was initialied to */ + if (waitCounter >= 100) { + return MTD_FAIL; /* execute timed out */ + } + + return MTD_OK; +} + + +/* mtdHunit.c */ +/****************************************************************************** + Mac Interface functions +******************************************************************************/ + +MTD_STATUS mtdSetMacInterfaceControl( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 macType, + IN MTD_BOOL macIfPowerDown, + IN MTD_U16 macIfSnoopSel, + IN MTD_U16 macIfActiveLaneSelect, + IN MTD_U16 macLinkDownSpeed, + IN MTD_U16 macMaxIfSpeed, /* 33X0/E20X0 devices only */ + IN MTD_BOOL doSwReset, + IN MTD_BOOL rerunSerdesInitialization) +{ + MTD_U16 cunitPortCtrl, cunitModeConfig; + + /* do range checking on parameters */ + if ((macType > MTD_MAC_LEAVE_UNCHANGED)) { + return MTD_FAIL; + } + + if ((macIfSnoopSel > MTD_MAC_SNOOP_LEAVE_UNCHANGED) || + (macIfSnoopSel == 1)) { + return MTD_FAIL; + } + + if (macIfActiveLaneSelect > 1) { + return MTD_FAIL; + } + + if (macLinkDownSpeed > MTD_MAC_SPEED_LEAVE_UNCHANGED) { + return MTD_FAIL; + } + + if (!(macMaxIfSpeed == MTD_MAX_MAC_SPEED_10G || + macMaxIfSpeed == MTD_MAX_MAC_SPEED_5G || + macMaxIfSpeed == MTD_MAX_MAC_SPEED_2P5G || + macMaxIfSpeed == MTD_MAX_MAC_SPEED_LEAVE_UNCHANGED || + macMaxIfSpeed == MTD_MAX_MAC_SPEED_NOT_APPLICABLE)) { + return MTD_FAIL; + } + + + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_PORT_CTRL, &cunitPortCtrl)); + ATTEMPT(mtdHwXmdioRead(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_MODE_CONFIG, &cunitModeConfig)); + + /* Because writes of some of these bits don't show up in the register on a read + * until after the software reset, we can't do repeated read-modify-writes + * to the same register or we will lose those changes. + + * This approach also cuts down on IO and speeds up the code + */ + + if (macType < MTD_MAC_LEAVE_UNCHANGED) { + ATTEMPT(mtdHwSetRegFieldToWord(cunitPortCtrl, macType, 0, 3, &cunitPortCtrl)); + } + + ATTEMPT(mtdHwSetRegFieldToWord(cunitModeConfig, (MTD_U16)macIfPowerDown, 3, 1, &cunitModeConfig)); + + if (macIfSnoopSel < MTD_MAC_SNOOP_LEAVE_UNCHANGED) { + ATTEMPT(mtdHwSetRegFieldToWord(cunitModeConfig, macIfSnoopSel, 8, 2, &cunitModeConfig)); + } + + ATTEMPT(mtdHwSetRegFieldToWord(cunitModeConfig, macIfActiveLaneSelect, 10, 1, &cunitModeConfig)); + + if (macLinkDownSpeed < MTD_MAC_SPEED_LEAVE_UNCHANGED) { + ATTEMPT(mtdHwSetRegFieldToWord(cunitModeConfig, macLinkDownSpeed, 6, 2, &cunitModeConfig)); + } + + /* Now write changed values */ + ATTEMPT(mtdHwXmdioWrite(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_PORT_CTRL, cunitPortCtrl)); + ATTEMPT(mtdHwXmdioWrite(devPtr, port, MTD_C_UNIT_GENERAL, MTD_CUNIT_MODE_CONFIG, cunitModeConfig)); + + if (MTD_IS_X33X0_BASE(devPtr->deviceId)) { + if (macMaxIfSpeed != MTD_MAX_MAC_SPEED_LEAVE_UNCHANGED) { + ATTEMPT(mtdHwSetPhyRegField(devPtr, port, 31, 0xF0A8, 0, 2, macMaxIfSpeed)); + } + } + + if (doSwReset == MTD_TRUE) { + ATTEMPT(mtdCunitSwReset(devPtr, port)); + + if (macLinkDownSpeed < MTD_MAC_SPEED_LEAVE_UNCHANGED) { + ATTEMPT(mtdCunitSwReset(devPtr, port)); /* need 2x for changes to macLinkDownSpeed */ + } + + if (rerunSerdesInitialization == MTD_TRUE) { + ATTEMPT(mtdRerunSerdesAutoInitializationUseAutoMode(devPtr, port)); + } + } + + return MTD_OK; +} + + +/******************************************************************************* +* mtdSemCreate +* +* DESCRIPTION: +* Create semaphore. +* +* INPUTS: +* state - beginning state of the semaphore, either MTD_SEM_EMPTY or MTD_SEM_FULL +* +* OUTPUTS: +* None +* +* RETURNS: +* MTD_SEM if success. Otherwise, NULL +* +* COMMENTS: +* None +* +*******************************************************************************/ +MTD_SEM mtdSemCreate( + IN MTD_DEV * dev, + IN MTD_SEM_BEGIN_STATE state) +{ + if (dev->semCreate) + return dev->semCreate(state); + + return 1; /* should return any value other than 0 to let it keep going */ +} + +MTD_STATUS mtdLoadDriver( + IN FMTD_READ_MDIO readMdio, + IN FMTD_WRITE_MDIO writeMdio, + IN MTD_BOOL macsecIndirectAccess, + IN FMTD_SEM_CREATE semCreate, + IN FMTD_SEM_DELETE semDelete, + IN FMTD_SEM_TAKE semTake, + IN FMTD_SEM_GIVE semGive, + IN MTD_U16 anyPort, + OUT MTD_DEV * dev) +{ + MTD_U16 data; + + MTD_DBG_INFO("mtdLoadDriver Called.\n"); + + /* Check for parameters validity */ + if (dev == NULL) { + MTD_DBG_ERROR("MTD_DEV pointer is NULL.\n"); + return MTD_API_ERR_DEV; + } + + /* The initialization was already done. */ + if (dev->devEnabled) { + MTD_DBG_ERROR("Device Driver already loaded.\n"); + return MTD_API_ERR_DEV_ALREADY_EXIST; + } + + /* Make sure mtdWait() was implemented */ + if (mtdWait(1) == MTD_FAIL) { + MTD_DBG_ERROR("mtdWait() not implemented.\n"); + return MTD_FAIL; + } + + dev->fmtdReadMdio = readMdio; + dev->fmtdWriteMdio = writeMdio; + + dev->semCreate = semCreate; + dev->semDelete = semDelete; + dev->semTake = semTake; + dev->semGive = semGive; + dev->macsecIndirectAccess = macsecIndirectAccess; /* 88X33X0 and later force direct access */ + + /* try to read 1.0 */ + if ((mtdHwXmdioRead(dev, anyPort, 1, 0, &data)) != MTD_OK) { + MTD_DBG_ERROR("Reading to reg %x failed.\n", 0); + return MTD_API_FAIL_READ_REG; + } + + MTD_DBG_INFO("mtdLoadDriver successful.\n"); + + /* Initialize the MACsec Register Access semaphore. */ + dev->multiAddrSem = mtdSemCreate(dev, MTD_SEM_FULL); + if (dev->multiAddrSem == 0) { + MTD_DBG_ERROR("semCreate Failed.\n"); + return MTD_API_FAIL_SEM_CREATE; + } + + if (dev->msec_ctrl.msec_rev == MTD_MSEC_REV_FPGA) { + dev->deviceId = MTD_REV_3310P_Z2; /* verification: change if needed */ + dev->numPorts = 1; /* verification: change if needed */ + dev->thisPort = 0; + } else { + /* After everything else is done, can fill in the device id */ + if ((mtdGetPhyRevision(dev, anyPort, + &(dev->deviceId), + &(dev->numPorts), + &(dev->thisPort))) != MTD_OK) { + MTD_DBG_ERROR("mtdGetPhyRevision Failed.\n"); + return MTD_FAIL; + } + } + + if (MTD_IS_X33X0_BASE(dev->deviceId)) { + dev->macsecIndirectAccess = MTD_FALSE; /* bug was fixed in 88X33X0 and later revisions, go direct */ + } + + dev->devEnabled = MTD_TRUE; + + MTD_DBG_INFO("mtdLoadDriver successful !!!.\n"); + + return MTD_OK; +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_mtd.h b/drivers/net/ethernet/netswift/txgbe/txgbe_mtd.h new file mode 100644 index 0000000000000..1c5daae94a547 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_mtd.h @@ -0,0 +1,1540 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + +#ifndef _TXGBE_MTD_H_ +#define _TXGBE_MTD_H_ + +#define C_LINKAGE 1 /* set to 1 if C compile/linkage on C files is desired with C++ */ + +#if C_LINKAGE +#if defined __cplusplus + extern "C" { +#endif +#endif + +/* general */ + +#undef IN +#define IN +#undef OUT +#define OUT +#undef INOUT +#define INOUT + +#ifndef NULL +#define NULL ((void *)0) +#endif + +typedef void MTD_VOID; +typedef char MTD_8; +typedef short MTD_16; +typedef long MTD_32; +typedef long long MTD_64; + +typedef unsigned char MTD_U8; +typedef unsigned short MTD_U16; +typedef unsigned long MTD_U32; +typedef unsigned int MTD_UINT; +typedef int MTD_INT; +typedef signed short MTD_S16; + +typedef unsigned long long MTD_U64; + +typedef enum { + MTD_FALSE = 0, + MTD_TRUE = 1 +} MTD_BOOL; + +#define MTD_CONVERT_BOOL_TO_UINT(boolVar, uintVar) \ + {(boolVar) ? (uintVar = 1) : (uintVar = 0); } +#define MTD_CONVERT_UINT_TO_BOOL(uintVar, boolVar) \ + {(uintVar) ? (boolVar = MTD_TRUE) : (boolVar = MTD_FALSE); } +#define MTD_GET_BOOL_AS_BIT(boolVar) ((boolVar) ? 1 : 0) +#define MTD_GET_BIT_AS_BOOL(uintVar) ((uintVar) ? MTD_TRUE : MTD_FALSE) + +typedef void (*MTD_VOIDFUNCPTR) (void); /* ptr to function returning void */ +typedef MTD_U32 (*MTD_INTFUNCPTR) (void); /* ptr to function returning int */ + +typedef MTD_U32 MTD_STATUS; + +/* Defines for semaphore support */ +typedef MTD_U32 MTD_SEM; + +typedef enum { + MTD_SEM_EMPTY, + MTD_SEM_FULL +} MTD_SEM_BEGIN_STATE; + +typedef MTD_SEM (*FMTD_SEM_CREATE)(MTD_SEM_BEGIN_STATE state); +typedef MTD_STATUS (*FMTD_SEM_DELETE)(MTD_SEM semId); +typedef MTD_STATUS (*FMTD_SEM_TAKE)(MTD_SEM semId, MTD_U32 timOut); +typedef MTD_STATUS (*FMTD_SEM_GIVE)(MTD_SEM semId); + +/* Defines for mtdLoadDriver() mtdUnloadDriver() and all API functions which need MTD_DEV */ +typedef struct _MTD_DEV MTD_DEV; +typedef MTD_DEV * MTD_DEV_PTR; + +typedef MTD_STATUS (*FMTD_READ_MDIO)( + MTD_DEV *dev, + MTD_U16 port, + MTD_U16 mmd, + MTD_U16 reg, + MTD_U16 *value); +typedef MTD_STATUS (*FMTD_WRITE_MDIO)( + MTD_DEV *dev, + MTD_U16 port, + MTD_U16 mmd, + MTD_U16 reg, + MTD_U16 value); + +/* MTD_DEVICE_ID format: */ +/* Bits 15:13 reserved */ +/* Bit 12: 1-> E20X0 device with max speed of 5G and no fiber interface */ +/* Bit 11: 1-> Macsec Capable (Macsec/PTP module included */ +/* Bit 10: 1-> Copper Capable (T unit interface included) */ +/* Bits 9:4 0x18 -> X32X0 base, 0x1A 0x33X0 base */ +/* Bits 3:0 revision/number of ports indication, see list */ +/* Following defines are for building MTD_DEVICE_ID */ +#define MTD_E20X0_DEVICE (1<<12) /* whether this is an E20X0 device group */ +#define MTD_MACSEC_CAPABLE (1<<11) /* whether the device has a Macsec/PTP module */ +#define MTD_COPPER_CAPABLE (1<<10) /* whether the device has a copper (T unit) module */ +#define MTD_X32X0_BASE (0x18<<4) /* whether the device uses X32X0 firmware base */ +#define MTD_X33X0_BASE (0x1A<<4) /* whether the device uses X33X0 firmware base */ + +/* Following macros are to test MTD_DEVICE_ID for various features */ +#define MTD_IS_E20X0_DEVICE(mTdrevId) ((MTD_BOOL)(mTdrevId & MTD_E20X0_DEVICE)) +#define MTD_IS_MACSEC_CAPABLE(mTdrevId) ((MTD_BOOL)(mTdrevId & MTD_MACSEC_CAPABLE)) +#define MTD_IS_COPPER_CAPABLE(mTdrevId) ((MTD_BOOL)(mTdrevId & MTD_COPPER_CAPABLE)) +#define MTD_IS_X32X0_BASE(mTdrevId) ((MTD_BOOL)((mTdrevId & (0x3F<<4)) == MTD_X32X0_BASE)) +#define MTD_IS_X33X0_BASE(mTdrevId) ((MTD_BOOL)((mTdrevId & (0x3F<<4)) == MTD_X33X0_BASE)) + +#define MTD_X33X0BASE_SINGLE_PORTA0 0xA +#define MTD_X33X0BASE_DUAL_PORTA0 0x6 +#define MTD_X33X0BASE_QUAD_PORTA0 0x2 + +/* WARNING: If you add/modify this list, you must also modify mtdIsPhyRevisionValid() */ +typedef enum { + MTD_REV_UNKNOWN = 0, + MTD_REV_3240P_Z2 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x1), + MTD_REV_3240P_A0 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x2), + MTD_REV_3240P_A1 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x3), + MTD_REV_3220P_Z2 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x4), + MTD_REV_3220P_A0 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x5), + MTD_REV_3240_Z2 = (MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x1), + MTD_REV_3240_A0 = (MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x2), + MTD_REV_3240_A1 = (MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x3), + MTD_REV_3220_Z2 = (MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x4), + MTD_REV_3220_A0 = (MTD_COPPER_CAPABLE | MTD_X32X0_BASE | 0x5), + + MTD_REV_3310P_Z1 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x8), /* 88X33X0 Z1 not supported starting with version 1.2 of API */ + MTD_REV_3320P_Z1 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x4), + MTD_REV_3340P_Z1 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x0), + MTD_REV_3310_Z1 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x8), + MTD_REV_3320_Z1 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x4), + MTD_REV_3340_Z1 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x0), + + MTD_REV_3310P_Z2 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x9), /* 88X33X0 Z2 not supported starting with version 1.2 of API */ + MTD_REV_3320P_Z2 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x5), + MTD_REV_3340P_Z2 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x1), + MTD_REV_3310_Z2 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x9), + MTD_REV_3320_Z2 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x5), + MTD_REV_3340_Z2 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x1), + + MTD_REV_E2010P_Z2 = (MTD_E20X0_DEVICE | MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x9), /* E20X0 Z2 not supported starting with version 1.2 of API */ + MTD_REV_E2020P_Z2 = (MTD_E20X0_DEVICE | MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x5), + MTD_REV_E2040P_Z2 = (MTD_E20X0_DEVICE | MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x1), + MTD_REV_E2010_Z2 = (MTD_E20X0_DEVICE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x9), + MTD_REV_E2020_Z2 = (MTD_E20X0_DEVICE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x5), + MTD_REV_E2040_Z2 = (MTD_E20X0_DEVICE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | 0x1), + + + MTD_REV_3310P_A0 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_SINGLE_PORTA0), + MTD_REV_3320P_A0 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_DUAL_PORTA0), + MTD_REV_3340P_A0 = (MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_QUAD_PORTA0), + MTD_REV_3310_A0 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_SINGLE_PORTA0), + MTD_REV_3320_A0 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_DUAL_PORTA0), + MTD_REV_3340_A0 = (MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_QUAD_PORTA0), + + MTD_REV_E2010P_A0 = (MTD_E20X0_DEVICE | MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_SINGLE_PORTA0), + MTD_REV_E2020P_A0 = (MTD_E20X0_DEVICE | MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_DUAL_PORTA0), + MTD_REV_E2040P_A0 = (MTD_E20X0_DEVICE | MTD_MACSEC_CAPABLE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_QUAD_PORTA0), + MTD_REV_E2010_A0 = (MTD_E20X0_DEVICE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_SINGLE_PORTA0), + MTD_REV_E2020_A0 = (MTD_E20X0_DEVICE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_DUAL_PORTA0), + MTD_REV_E2040_A0 = (MTD_E20X0_DEVICE | MTD_COPPER_CAPABLE | MTD_X33X0_BASE | MTD_X33X0BASE_QUAD_PORTA0), + + MTD_REV_2340P_A1 = (MTD_MACSEC_CAPABLE | MTD_X32X0_BASE | 0x3), + MTD_REV_2320P_A0 = (MTD_MACSEC_CAPABLE | MTD_X32X0_BASE | 0x5), + MTD_REV_2340_A1 = (MTD_X32X0_BASE | 0x3), + MTD_REV_2320_A0 = (MTD_X32X0_BASE | 0x5) +} MTD_DEVICE_ID; + +typedef enum { + MTD_MSEC_REV_Z0A, + MTD_MSEC_REV_Y0A, + MTD_MSEC_REV_A0B, + MTD_MSEC_REV_FPGA, + MTD_MSEC_REV_UNKNOWN = -1 +} MTD_MSEC_REV; + +/* compatible for USB test */ +typedef struct _MTD_MSEC_CTRL { + MTD_32 dev_num; /* indicates the device number (0 if only one) when multiple devices are present on SVB.*/ + MTD_32 port_num; /* Indicates which port (0 to 4) is requesting CPU */ + MTD_U16 prev_addr; /* < Prev write address */ + MTD_U16 prev_dataL; /* < Prev dataL value */ + MTD_MSEC_REV msec_rev; /* revision */ +} MTD_MSEC_CTRL; + +struct _MTD_DEV { + MTD_DEVICE_ID deviceId; /* type of device and capabilities */ + MTD_BOOL devEnabled; /* whether mtdLoadDriver() called successfully */ + MTD_U8 numPorts; /* number of ports per device */ + MTD_U8 thisPort; /* relative port number on this device starting with 0 (not MDIO address) */ + MTD_SEM multiAddrSem; + + FMTD_READ_MDIO fmtdReadMdio; + FMTD_WRITE_MDIO fmtdWriteMdio; + + FMTD_SEM_CREATE semCreate; /* create semapore */ + FMTD_SEM_DELETE semDelete; /* delete the semapore */ + FMTD_SEM_TAKE semTake; /* try to get a semapore */ + FMTD_SEM_GIVE semGive; /* return semaphore */ + + MTD_U8 macsecIndirectAccess; /* if MTD_TRUE use internal processor to access Macsec */ + MTD_MSEC_CTRL msec_ctrl; /* structure use for internal verification */ + + void *appData; /* application specific data, anything the host wants to pass to the low layer */ +}; + +#define MTD_OK 0 /* Operation succeeded */ +#define MTD_FAIL 1 /* Operation failed */ +#define MTD_PENDING 2 /* Pending */ + +/* bit definition */ +#define MTD_BIT_0 0x0001 +#define MTD_BIT_1 0x0002 +#define MTD_BIT_2 0x0004 +#define MTD_BIT_3 0x0008 +#define MTD_BIT_4 0x0010 +#define MTD_BIT_5 0x0020 +#define MTD_BIT_6 0x0040 +#define MTD_BIT_7 0x0080 +#define MTD_BIT_8 0x0100 +#define MTD_BIT_9 0x0200 +#define MTD_BIT_10 0x0400 +#define MTD_BIT_11 0x0800 +#define MTD_BIT_12 0x1000 +#define MTD_BIT_13 0x2000 +#define MTD_BIT_14 0x4000 +#define MTD_BIT_15 0x8000 + +#define MTD_DBG_ERROR(...) +#define MTD_DBG_INFO(...) +#define MTD_DBG_CRITIC_INFO(...) + + +#define MTD_API_MAJOR_VERSION 2 +#define MTD_API_MINOR_VERSION 0 + +/* This macro is handy for calling a function when you want to test the + return value and return MTD_FAIL, if the function returned MTD_FAIL, + otherwise continue */ +#define ATTEMPT(xFuncToTry) do {if (xFuncToTry == MTD_FAIL) { return MTD_FAIL; } } while (0) + +/* These defines are used for some registers which represent the copper + speed as a 2-bit binary number */ +#define MTD_CU_SPEED_10_MBPS 0 /* copper is 10BASE-T */ +#define MTD_CU_SPEED_100_MBPS 1 /* copper is 100BASE-TX */ +#define MTD_CU_SPEED_1000_MBPS 2 /* copper is 1000BASE-T */ +#define MTD_CU_SPEED_10_GBPS 3 /* copper is 10GBASE-T */ + +/* for 88X33X0 family: */ +#define MTD_CU_SPEED_NBT 3 /* copper is NBASE-T */ +#define MTD_CU_SPEED_NBT_10G 0 /* copper is 10GBASE-T */ +#define MTD_CU_SPEED_NBT_5G 2 /* copper is 5GBASE-T */ +#define MTD_CU_SPEED_NBT_2P5G 1 /* copper is 2.5GBASE-T */ + +#define MTD_ADV_NONE 0x0000 /* No speeds to be advertised */ +#define MTD_SPEED_10M_HD 0x0001 /* 10BT half-duplex */ +#define MTD_SPEED_10M_FD 0x0002 /* 10BT full-duplex */ +#define MTD_SPEED_100M_HD 0x0004 /* 100BASE-TX half-duplex */ +#define MTD_SPEED_100M_FD 0x0008 /* 100BASE-TX full-duplex */ +#define MTD_SPEED_1GIG_HD 0x0010 /* 1000BASE-T half-duplex */ +#define MTD_SPEED_1GIG_FD 0x0020 /* 1000BASE-T full-duplex */ +#define MTD_SPEED_10GIG_FD 0x0040 /* 10GBASE-T full-duplex */ +#define MTD_SPEED_2P5GIG_FD 0x0800 /* 2.5GBASE-T full-duplex, 88X33X0/88E20X0 family only */ +#define MTD_SPEED_5GIG_FD 0x1000 /* 5GBASE-T full-duplex, 88X33X0/88E20X0 family only */ +#define MTD_SPEED_ALL (MTD_SPEED_10M_HD | \ + MTD_SPEED_10M_FD | \ + MTD_SPEED_100M_HD | \ + MTD_SPEED_100M_FD | \ + MTD_SPEED_1GIG_HD | \ + MTD_SPEED_1GIG_FD | \ + MTD_SPEED_10GIG_FD) +#define MTD_SPEED_ALL_33X0 (MTD_SPEED_10M_HD | \ + MTD_SPEED_10M_FD | \ + MTD_SPEED_100M_HD | \ + MTD_SPEED_100M_FD | \ + MTD_SPEED_1GIG_HD | \ + MTD_SPEED_1GIG_FD | \ + MTD_SPEED_10GIG_FD | \ + MTD_SPEED_2P5GIG_FD |\ + MTD_SPEED_5GIG_FD) + +/* these bits are for forcing the speed and disabling autonegotiation */ +#define MTD_SPEED_10M_HD_AN_DIS 0x0080 /* Speed forced to 10BT half-duplex */ +#define MTD_SPEED_10M_FD_AN_DIS 0x0100 /* Speed forced to 10BT full-duplex */ +#define MTD_SPEED_100M_HD_AN_DIS 0x0200 /* Speed forced to 100BT half-duplex */ +#define MTD_SPEED_100M_FD_AN_DIS 0x0400 /* Speed forced to 100BT full-duplex */ + +/* this value is returned for the speed when the link status is checked and the speed has been */ +/* forced to one speed but the link is up at a different speed. it indicates an error. */ +#define MTD_SPEED_MISMATCH 0x8000 /* Speed is forced to one speed, but status indicates another */ + + +/* for macType */ +#define MTD_MAC_TYPE_RXAUI_SGMII_AN_EN (0x0) /* X32X0/X33x0, but not E20x0 */ +#define MTD_MAC_TYPE_RXAUI_SGMII_AN_DIS (0x1) /* X32x0/X3340/X3320, but not X3310/E20x0 */ +#define MTD_MAC_TYPE_XAUI_RATE_ADAPT (0x1) /* X3310,E2010 only */ +#define MTD_MAC_TYPE_RXAUI_RATE_ADAPT (0x2) +#define MTD_MAC_TYPE_XAUI (0x3) /* X3310,E2010 only */ +#define MTD_MAC_TYPE_XFI_SGMII_AN_EN (0x4) /* XFI at 10G, X33x0/E20x0 also use 5GBASE-R/2500BASE-X */ +#define MTD_MAC_TYPE_XFI_SGMII_AN_DIS (0x5) /* XFI at 10G, X33x0/E20x0 also use 5GBASE-R/2500BASE-X */ +#define MTD_MAC_TYPE_XFI_RATE_ADAPT (0x6) +#define MTD_MAC_TYPE_USXGMII (0x7) /* X33x0 only */ +#define MTD_MAC_LEAVE_UNCHANGED (0x8) /* use this option to not touch these bits */ + +/* for macIfSnoopSel */ +#define MTD_MAC_SNOOP_FROM_NETWORK (0x2) +#define MTD_MAC_SNOOP_FROM_HOST (0x3) +#define MTD_MAC_SNOOP_OFF (0x0) +#define MTD_MAC_SNOOP_LEAVE_UNCHANGED (0x4) /* use this option to not touch these bits */ +/* for macLinkDownSpeed */ +#define MTD_MAC_SPEED_10_MBPS MTD_CU_SPEED_10_MBPS +#define MTD_MAC_SPEED_100_MBPS MTD_CU_SPEED_100_MBPS +#define MTD_MAC_SPEED_1000_MBPS MTD_CU_SPEED_1000_MBPS +#define MTD_MAC_SPEED_10_GBPS MTD_CU_SPEED_10_GBPS +#define MTD_MAC_SPEED_LEAVE_UNCHANGED (0x4) +/* X33X0/E20X0 devices only for macMaxIfSpeed */ +#define MTD_MAX_MAC_SPEED_10G (0) +#define MTD_MAX_MAC_SPEED_5G (2) +#define MTD_MAX_MAC_SPEED_2P5G (3) +#define MTD_MAX_MAC_SPEED_LEAVE_UNCHANGED (4) +#define MTD_MAX_MAC_SPEED_NOT_APPLICABLE (4) /* 32X0 devices can pass this */ + +/* 88X3240/3220 Device Number Definitions */ +#define MTD_T_UNIT_PMA_PMD 1 +#define MTD_T_UNIT_PCS_CU 3 +#define MTD_X_UNIT 3 +#define MTD_H_UNIT 4 +#define MTD_T_UNIT_AN 7 +#define MTD_XFI_DSP 30 +#define MTD_C_UNIT_GENERAL 31 +#define MTD_M_UNIT 31 + +/* 88X3240/3220 Device Number Definitions Host Redundant Mode */ +#define MTD_BASER_LANE_0 MTD_H_UNIT +#define MTD_BASER_LANE_1 MTD_X_UNIT + +/* 88X3240/3220 T Unit Registers MMD 1 */ +#define MTD_TUNIT_IEEE_PMA_CTRL1 0x0000 /* do not enclose in parentheses */ +#define MTD_TUNIT_XG_EXT_STATUS 0xC001 /* do not enclose in parentheses */ +#define MTD_TUNIT_PHY_REV_INFO_REG 0xC04E /* do not enclose in parentheses */ + +/* control/status for serdes initialization */ +#define MTD_SERDES_CTRL_STATUS 0x800F /* do not enclose in parentheses */ +/* 88X3240/3220 C Unit Registers MMD 31 */ +#define MTD_CUNIT_MODE_CONFIG 0xF000 /* do not enclose in parentheses */ +#define MTD_CUNIT_PORT_CTRL 0xF001 /* do not enclose in parentheses */ + +#define MTD_API_FAIL_SEM_CREATE (0x18<<24) /*semCreate Failed. */ +#define MTD_API_FAIL_SEM_DELETE (0x19<<24) /*semDelete Failed. */ +#define MTD_API_FAIL_READ_REG (0x16<<16) /*Reading from phy reg failed. */ +#define MTD_API_ERR_DEV (0x3c<<16) /*driver struture is NULL. */ +#define MTD_API_ERR_DEV_ALREADY_EXIST (0x3e<<16) /*Device Driver already loaded. */ + + +#define MTD_CLEAR_PAUSE 0 /* clears both pause bits */ +#define MTD_SYM_PAUSE 1 /* for symmetric pause only */ +#define MTD_ASYM_PAUSE 2 /* for asymmetric pause only */ +#define MTD_SYM_ASYM_PAUSE 3 /* for both */ + + +/******************************************************************************* + mtdLoadDriver + + DESCRIPTION: + Marvell X32X0 Driver Initialization Routine. + This is the first routine that needs be called by system software. + It takes parameters from system software, and retures a pointer (*dev) + to a data structure which includes infomation related to this Marvell Phy + device. This pointer (*dev) is then used for all the API functions. + The following is the job performed by this routine: + 1. store MDIO read/write function into the given MTD_DEV structure + 2. run any device specific initialization routine + 3. create semaphore if required + 4. Initialize the deviceId + + + INPUTS: + readMdio - pointer to host's function to do MDIO read + writeMdio - point to host's function to do MDIO write + macsecIndirectAccess - MTD_TRUE to access MacSec through T-unit processor + MTD_FALSE to do direct register access + semCreate - pointer to host's function to create a semaphore, NULL + if not used + semDelete - pointer to host's function to create a semaphore, NULL + if not used + semTake - pointer to host's function to take a semaphore, NULL + if not used + semGive - pointer to host's function to give a semaphore, NULL + if not used + anyPort - port address of any port for this device + + OUTPUTS: + dev - pointer to holds device information to be used for each API call. + + RETURNS: + MTD_OK - on success + MTD_FAIL - on error + + COMMENTS: + mtdUnloadDriver is also provided to do driver cleanup. + + An MTD_DEV is required for each type of X32X0 device in the system. For + example, if there are 16 ports of X3240 and 4 ports of X3220, + two MTD_DEV are required, and one call to mtdLoadDriver() must + be made with one of the X3240 ports, and one with one of the X3220 + ports. +*******************************************************************************/ +MTD_STATUS mtdLoadDriver +( + IN FMTD_READ_MDIO readMdio, + IN FMTD_WRITE_MDIO writeMdio, + IN MTD_BOOL macsecIndirectAccess, + IN FMTD_SEM_CREATE semCreate, + IN FMTD_SEM_DELETE semDelete, + IN FMTD_SEM_TAKE semTake, + IN FMTD_SEM_GIVE semGive, + IN MTD_U16 anyPort, + OUT MTD_DEV * dev +); + +/****************************************************************************** +MTD_STATUS mtdHwXmdioWrite +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 reg, + IN MTD_U16 value +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + dev - MMD device address, 0-31 + reg - MMD register address + value - data to write + + Outputs: + None + + Returns: + MTD_OK - wrote successfully + MTD_FAIL - an error occurred + + Description: + Writes a 16-bit word to the MDIO + Address is in format X.Y.Z, where X selects the MDIO port (0-31), Y selects + the MMD/Device (0-31), and Z selects the register. + + Side effects: + None + + Notes/Warnings: + None + +******************************************************************************/ +MTD_STATUS mtdHwXmdioWrite +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 reg, + IN MTD_U16 value +); + +/****************************************************************************** + MTD_STATUS mtdHwXmdioRead + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 reg, + OUT MTD_U16 *data + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + dev - MMD device address, 0-31 + reg - MMD register address + + Outputs: + data - Returns 16 bit word from the MDIO + + Returns: + MTD_OK - read successful + MTD_FAIL - read was unsuccessful + + Description: + Reads a 16-bit word from the MDIO + Address is in format X.Y.Z, where X selects the MDIO port (0-31), Y selects the + MMD/Device (0-31), and Z selects the register. + + Side effects: + None + + Notes/Warnings: + None + +******************************************************************************/ +MTD_STATUS mtdHwXmdioRead +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 reg, + OUT MTD_U16 *data +); + + +/******************************************************************************* + MTD_STATUS mtdHwGetPhyRegField + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 regAddr, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - The port number, 0-31 + dev - The MMD device, 0-31 + regAddr - The register's address + fieldOffset - The field start bit index. (0 - 15) + fieldLength - Number of bits to read + + Outputs: + data - The read register field + + Returns: + MTD_OK on success, or + MTD_FAIL - on error + + Description: + This function reads a specified field from a port's phy register. + It first reads the register, then returns the specified bit + field from what was read. + + Side effects: + None + + Notes/Warnings: + The sum of fieldOffset & fieldLength parameters must be smaller- + equal to 16 + + Reading a register with latched bits may clear the latched bits. + Use with caution for registers with latched bits. + + To operate on several bits within a register which has latched bits + before reading the register again, first read the register with + mtdHwXmdioRead() to get the register value, then operate on the + register data repeatedly using mtdHwGetRegFieldFromWord() to + take apart the bit fields without re-reading the register again. + + This approach should also be used to reduce IO to the PHY when reading + multiple bit fields (do a single read, then grab different fields + from the register by using mtdHwGetRegFieldFromWord() repeatedly). + +*******************************************************************************/ +MTD_STATUS mtdHwGetPhyRegField +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 regAddr, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data +); + +/******************************************************************************* + MTD_STATUS mtdHwSetPhyRegField + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 regAddr, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + IN MTD_U16 data + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - The port number, 0-31 + dev - The MMD device, 0-31 + regAddr - The register's address + fieldOffset - The field start bit index. (0 - 15) + fieldLength - Number of bits to write + data - Data to be written. + + Outputs: + None. + + Returns: + MTD_OK on success, or + MTD_FAIL - on error + + Description: + This function writes to specified field in a port's phy register. + + Side effects: + None + + Notes/Warnings: + The sum of fieldOffset & fieldLength parameters must be smaller- + equal to 16. + +*******************************************************************************/ +MTD_STATUS mtdHwSetPhyRegField +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 dev, + IN MTD_U16 regAddr, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + IN MTD_U16 data +); + +/******************************************************************************* + MTD_STATUS mtdHwGetRegFieldFromWord + ( + IN MTD_U16 regData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data + ); + + Inputs: + regData - The data previously read from the register + fieldOffset - The field start bit index. (0 - 15) + fieldLength - Number of bits to read + + Outputs: + data - The data from the associated bit field + + Returns: + MTD_OK always + + Description: + This function grabs a value from a bitfield within a word. It could + be used to get the value of a bitfield within a word which was previously + read from the PHY. + + Side effects: + None + + Notes/Warnings: + The sum of fieldOffset & fieldLength parameters must be smaller- + equal to 16 + + This register acts on data passed in. It does no hardware access. + + This function is useful if you want to do 1 register access and then + get different bit fields without doing another register access either + because there are latched bits in the register to avoid another read, + or to keep hardware IO down to improve performance/throughput. + + Example: + + MTD_U16 aword, nibble1, nibble2; + + mtdHwXmdioRead(devPtr,0,MTD_TUNIT_IEEE_PCS_CTRL1,&aword); // Read 3.0 from port 0 + mtdHwGetRegFieldFromWord(aword,0,4,&nibble1); // grab first nibble + mtdHwGetRegFieldFromWord(aword,4,4,&nibble2); // grab second nibble + +*******************************************************************************/ +MTD_STATUS mtdHwGetRegFieldFromWord +( + IN MTD_U16 regData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data +); + +/******************************************************************************* + MTD_STATUS mtdHwSetRegFieldToWord + ( + IN MTD_U16 regData, + IN MTD_U16 bitFieldData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data + ); + + Inputs: + regData - original word to modify + bitFieldData - The data to set the register field to + (must be <= largest value for that bit field, + no range checking is done by this function) + fieldOffset - The field start bit index. (0 - 15) + fieldLength - Number of bits to write to regData + + Outputs: + This function grabs a value from a bitfield within a word. It could + be used to get the value of a bitfield within a word which was previously + read from the PHY. + + Side effects: + None + + Notes/Warnings: + The sum of fieldOffset & fieldLength parameters must be smaller- + equal to 16 + + This register acts on data passed in. It does no hardware access. + + This function is useful if you want to do 1 register access and then + get different bit fields without doing another register access either + because there are latched bits in the register to avoid another read, + or to keep hardware IO down to improve performance/throughput. + + Example: + + MTD_U16 aword, nibble1, nibble2; + + mtdHwXmdioRead(devPtr,0,MTD_TUNIT_IEEE_PCS_CTRL1,&aword); // Read 3.0 from port 0 + mtdHwGetRegFieldFromWord(aword,0,4,&nibble1); // grab first nibble + mtdHwGetRegFieldFromWord(aword,4,4,&nibble2); // grab second nibble + +*******************************************************************************/ +MTD_STATUS mtdHwGetRegFieldFromWord +( + IN MTD_U16 regData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data +); + +/******************************************************************************* + MTD_STATUS mtdHwSetRegFieldToWord + ( + IN MTD_U16 regData, + IN MTD_U16 bitFieldData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data + ); + + Inputs: + regData - original word to modify + bitFieldData - The data to set the register field to + (must be <= largest value for that bit field, + no range checking is done by this function) + fieldOffset - The field start bit index. (0 - 15) + fieldLength - Number of bits to write to regData + + Outputs: + data - The new/modified regData with the bitfield changed + + Returns: + MTD_OK always + + Description: + This function write a value to a bitfield within a word. + + Side effects: + None + + Notes/Warnings: + The sum of fieldOffset & fieldLength parameters must be smaller- + equal to 16 + + This register acts on data passed in. It does no hardware access. + + This function is useful to reduce IO if several bit fields of a register + that has been read is to be changed before writing it back. + + MTD_U16 aword; + + mtdHwXmdioRead(devPtr,0,MTD_TUNIT_IEEE_PCS_CTRL1,&aword); // Read 3.0 from port 0 + mtdHwSetRegFieldToWord(aword,2,0,4,&aword); // Change first nibble to 2 + mtdHwSetRegFieldToWord(aword,3,4,4,&aword); // Change second nibble to 3 + +*******************************************************************************/ +MTD_STATUS mtdHwSetRegFieldToWord +( + IN MTD_U16 regData, + IN MTD_U16 bitFieldData, + IN MTD_U8 fieldOffset, + IN MTD_U8 fieldLength, + OUT MTD_U16 *data +); + + +/****************************************************************************** +MTD_STATUS mtdWait +( + IN MTD_DEV_PTR devPtr, + IN unsigned x +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + x - number of milliseconds to wait + + Outputs: + None + + Returns: + MTD_OK if wait was successful, MTD_FAIL otherwise + + Description: + Waits X milliseconds + + Side effects: + None + + Notes/Warnings: + None + +******************************************************************************/ +MTD_STATUS mtdWait +( + IN MTD_UINT x +); + +/****************************************************************************** +MTD_STATUS mtdSoftwareReset +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 timeoutMs +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + timeoutMs - 0 will not wait for reset to complete, otherwise + waits 'timeout' milliseconds for reset to complete + + Outputs: + None + + Returns: + MTD_OK or MTD_FAIL if IO error or timed out + + Description: + Issues a software reset (1.0.15 <= 1) command. Resets firmware and + hardware state machines and returns non-retain bits to their hardware + reset values and retain bits keep their values through the reset. + + If timeoutMs is 0, returns immediately. If timeoutMs is non-zero, + waits up to 'timeoutMs' milliseconds looking for the reset to complete + before returning. Returns MTD_FAIL if times out. + + Side effects: + All "retain" bits keep their values through this reset. Non-"retain"-type + bits are returned to their hardware reset values following this reset. + See the Datasheet for a list of retain bits. + + Notes/Warnings: + Use mtdIsPhyReadyAfterReset() to see if the software reset is complete + before issuing any other MDIO commands following this reset or pass + in non-zero timeoutMs to have this function do it for you. + + This is a T unit software reset only. It may only be issued if the T + unit is ready (1.0.15 is 0) and the T unit is not in low power mode. + +******************************************************************************/ +MTD_STATUS mtdSoftwareReset +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 timeoutMs +); + +MTD_STATUS mtdHardwareReset +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 timeoutMs +); + +/****************************************************************************** + MTD_STATUS mtdSetMacInterfaceControl + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 macType, + IN MTD_BOOL macIfPowerDown, + IN MTD_U16 macIfSnoopSel, + IN MTD_U16 macIfActiveLaneSelect, + IN MTD_U16 macLinkDownSpeed, + IN MTD_U16 macMaxIfSpeed, - 33X0/E20X0 devices only - + IN MTD_BOOL doSwReset, + IN MTD_BOOL rerunSerdesInitialization + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - port number, 0-31 + macType - the type of MAC interface being used (the hardware interface). One of the following: + MTD_MAC_TYPE_RXAUI_SGMII_AN_EN - selects RXAUI with SGMII AN enabled + MTD_MAC_TYPE_RXAUI_SGMII_AN_DIS - selects RXAUI with SGMII AN disabled (not valid on X3310) + MTD_MAC_TYPE_XAUI_RATE_ADAPT - selects XAUI with rate matching (only valid on X3310) + MTD_MAC_TYPE_RXAUI_RATE_ADAPT - selects RXAUI with rate matching + MTD_MAC_TYPE_XAUI - selects XAUI (only valid on X3310) + MTD_MAC_TYPE_XFI_SGMII_AN_EN - selects XFI with SGMII AN enabled + MTD_MAC_TYPE_XFI_SGMII_AN_DIS - selects XFI with SGMII AN disabled + MTD_MAC_TYPE_XFI_RATE_ADAPT - selects XFI with rate matching + MTD_MAC_TYPE_USXGMII - selects USXGMII + MTD_MAC_LEAVE_UNCHANGED - option to leave this parameter unchanged/as it is + macIfPowerDown - MTD_TRUE if the host interface is always to be powered up + MTD_FALSE if the host interface can be powered down under + certain circumstances (see datasheet) + macIfSnoopSel - If snooping is requested on the other lane, selects the source + MTD_MAC_SNOOP_FROM_NETWORK - source of snooped data is to come from the network + MTD_MAC_SNOOP_FROM_HOST - source of snooped data is to come from the host + MTD_MAC_SNOOP_OFF - snooping is to be turned off + MTD_MAC_SNOOP_LEAVE_UNCHANGED - option to leave this parameter unchanged/as it is + macIfActiveLaneSelect - For redundant host mode, this selects the active lane. 0 or 1 + only. 0 selects 0 as the active lane and 1 as the standby. 1 selects the other way. + macLinkDownSpeed - The speed the mac interface should run when the media side is + link down. One of the following: + MTD_MAC_SPEED_10_MBPS + MTD_MAC_SPEED_100_MBPS + MTD_MAC_SPEED_1000_MBPS + MTD_MAC_SPEED_10_GBPS + MTD_MAC_SPEED_LEAVE_UNCHANGED + macMaxIfSpeed - For X33X0/E20X0 devices only. Can be used to limit the Mac interface speed + MTD_MAX_MAC_SPEED_10G + MTD_MAX_MAC_SPEED_5G + MTD_MAX_MAC_SPEED_2P5G + MTD_MAX_MAC_SPEED_LEAVE_UNCHANGED + MTD_MAX_MAC_SPEED_NOT_APPLICABLE (for 32X0 devices pass this) + doSwReset - MTD_TRUE if a software reset (31.F001.15) should be done after these changes + have been made, or MTD_FALSE otherwise. See note below. + rerunSerdesInitialization - MTD_TRUE if any parameter that is likely to change the speed + of the serdes interface was performed like macLinkDownSpeed or macType will attempt + to reset the H unit serdes (this needs to be done AFTER the soft reset, so if doSwReset + is passed as MTD_FALSE, host must later call + mtdRerunSerdesAutoInitializationUseAutoMode() eventually to re-init the serdes). + + + Outputs: + None + + Returns: + MTD_OK or MTD_FAIL if a bad parameter was passed, or an IO error occurs. + + Description: + Changes the above parameters as indicated in 31.F000 and 31.F001 and + optionally does a software reset afterwards for those bits which require a + software reset to take effect. + + Side effects: + None + + Notes/Warnings: + These bits are actually in the C unit, but pertain to the host interface + control so the API called was placed here. + + Changes to the MAC type (31.F001.2:0) do not take effect until a software + reset is performed on the port. + + Changes to macLinkDownSpeed (31.F001.7:6) require 2 software resets to + take effect. This function will do 2 resets if doSwReset is MTD_TRUE + and macLinkDownSpeed is being changed. + + IMPORTANT: the readback reads back the last written value following + a software reset. Writes followed by reads without an intervening + software reset will read back the old bit value for all those bits + requiring a software. + + Because of this, read-modify-writes to different bitfields must have an + intervening software reset to pick up the latest value before doing + another read-modify-write to the register, otherwise the bitfield + may lose the value. + + Suggest always setting doSwReset to MTD_TRUE to avoid problems of + possibly losing changes. + +******************************************************************************/ +MTD_STATUS mtdSetMacInterfaceControl +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 macType, + IN MTD_BOOL macIfPowerDown, + IN MTD_U16 macIfSnoopSel, + IN MTD_U16 macIfActiveLaneSelect, + IN MTD_U16 macLinkDownSpeed, + IN MTD_U16 macMaxIfSpeed, /* 33X0/E20X0 devices only */ + IN MTD_BOOL doSwReset, + IN MTD_BOOL rerunSerdesInitialization +); + +/****************************************************************************** + MTD_STATUS mtdEnableSpeeds + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 speed_bits, + IN MTD_BOOL anRestart + ); + + Inputs: 2 + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + speed_bits - speeds to be advertised during auto-negotiation. One or more + of the following (bits logically OR together): + MTD_ADV_NONE (no bits set) + MTD_SPEED_10M_HD + MTD_SPEED_10M_FD + MTD_SPEED_100M_HD + MTD_SPEED_100M_FD + MTD_SPEED_1GIG_HD + MTD_SPEED_1GIG_FD + MTD_SPEED_10GIG_FD + MTD_SPEED_2P5GIG_FD (88X33X0/88E20X0 family only) + MTD_SPEED_5GIG_FD (88X33X0/88E20X0 family only) + MTD_SPEED_ALL + MTD_SPEED_ALL_33X0 (88X33X0/88E20X0 family only) + + anRestart - this takes the value of MTD_TRUE or MTD_FALSE and indicates + if auto-negotiation should be restarted following the speed + enable change. If this is MTD_FALSE, the change will not + take effect until AN is restarted in some other way (link + drop, toggle low power, toggle AN enable, toggle soft reset). + + If this is MTD_TRUE and AN has been disabled, it will be + enabled before being restarted. + + Outputs: + None + + Returns: + MTD_OK if action was successfully taken, MTD_FAIL if not. Also returns + MTD_FAIL if try to force the speed or try to advertise a speed not supported + on this PHY. + + Description: + This function allows the user to select the speeds to be advertised to the + link partner during auto-negotiation. + + First, this function enables auto-negotiation and XNPs by calling + mtdUndoForcedSpeed(). + + The function takes in a 16 bit value and sets the appropriate bits in MMD + 7 to have those speeds advertised. + + The function also checks if the input parameter is MTD_ADV_NONE, in which case + all speeds are disabled effectively disabling the phy from training + (but not disabling auto-negotiation). + + If anRestart is MTD_TRUE, an auto-negotiation restart is issued making the change + immediate. If anRestart is MTD_FALSE, the change will not take effect until the + next time auto-negotiation restarts. + + Side effects: + Setting speed in 1.0 to 10GBASE-T has the effect of enabling XNPs in 7.0 and + enabling auto-negotiation in 7.0. + + Notes/Warnings: + + Example: + To train the highest speed matching the far end among + either 1000BASE-T Full-duplex or 10GBASE-T: + mtdEnableSpeeds(devPtr,port,MTD_SPEED_1GIG_FD | MTD_SPEED_10GIG_FD, MTD_TRUE); + + To allow only 10GBASE-T to train: + mtdEnableSpeeds(devPtr,port,MTD_SPEED_10GIG_FD, MTD_TRUE); + + To disable all speeds (but AN will still be running, just advertising no + speeds) + mtdEnableSpeeds(devPtr,port,MTD_ADV_NONE, MTD_TRUE); + + This function is not to be used to disable autonegotiation and force the speed + to 10BASE-T or 100BASE-TX. Use mtdForceSpeed() for this. + + 88X33X0 Z1/Z2 and E20X0 Z2 are not supported starting with API version 1.2. + Version 1.2 and later require A0 revision of these devices. + +******************************************************************************/ +MTD_STATUS mtdEnableSpeeds +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U16 speed_bits, + IN MTD_BOOL anRestart +); + +MTD_STATUS mtdGetAutonegSpeedDuplexResolution +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U16 *speedResolution +); + +MTD_STATUS mtdAutonegIsSpeedDuplexResolutionDone +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *anSpeedResolutionDone +); + +/****************************************************************************/ +/******************************************************************* + Firmware Version + *******************************************************************/ +/****************************************************************************/ + +/****************************************************************************** +MTD_STATUS mtdGetFirmwareVersion +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U8 *major, + OUT MTD_U8 *minor, + OUT MTD_U8 *inc, + OUT MTD_U8 *test +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + major - major version, X.Y.Z.W, the X + minor - minor version, X.Y.Z.W, the Y + inc - incremental version, X.Y.Z.W, the Z + test - test version, X.Y.Z.W, the W, should be 0 for released code, + non-zero indicates this is a non-released code + + Returns: + MTD_FAIL if version can't be queried or firmware is in download mode + (meaning all version numbers are 0), MTD_OK otherwise + + Description: + This function reads the firmware version number and stores it in the + pointers passed in by the user. + + Side effects: + None + + Notes/Warnings: + This function returns all 0's if the phy is in download mode. The phy + application code must have started and be ready before issuing this + command. + +******************************************************************************/ +MTD_STATUS mtdGetFirmwareVersion +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U8 *major, + OUT MTD_U8 *minor, + OUT MTD_U8 *inc, + OUT MTD_U8 *test +); + +/****************************************************************************** +MTD_STATUS mtdSetPauseAdvertisement +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U8 pauseType, + IN MTD_BOOL anRestart +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + pauseType - one of the following: + MTD_SYM_PAUSE, + MTD_ASYM_PAUSE, + MTD_SYM_ASYM_PAUSE or + MTD_CLEAR_PAUSE. + anRestart - this takes the value of MTD_TRUE or MTD_FALSE and indicates + if auto-negotiation should be restarted following the speed + enable change. If this is MTD_FALSE, the change will not + take effect until AN is restarted in some other way (link + drop, toggle low power, toggle AN enable, toggle soft reset). + + If this is MTD_TRUE and AN has been disabled, it will be + enabled before being restarted. + + Outputs: + None + + Returns: + MTD_OK or MTD_FAIL, if action was successful or failed + + Description: + This function sets the asymmetric and symmetric pause bits in the technology + ability field in the AN Advertisement register and optionally restarts + auto-negotiation to use the new values. This selects what type of pause + is to be advertised to the far end MAC during auto-negotiation. If + auto-negotiation is restarted, it is enabled first. + + Sets entire 2-bit field to the value passed in pauseType. + + To clear both bits, pass in MTD_CLEAR_PAUSE. + + Side effects: + None + + Notes/Warnings: + This function will not take effect unless the auto-negotiation is restarted. + +******************************************************************************/ +MTD_STATUS mtdSetPauseAdvertisement +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_U32 pauseType, + IN MTD_BOOL anRestart +); + + +/****************************************************************************** +MTD_STATUS mtdGetLPAdvertisedPause +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U8 *pauseBits +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + pauseBits - setting of link partner's pause bits based on bit definitions above in + mtdmtdSetPauseAdvertisement() + + Returns: + MTD_OK or MTD_FAIL, based on whether the query succeeded or failed. Returns + MTD_FAIL and MTD_CLEAR_PAUSE if AN is not complete. + + Description: + This function reads 7.19 (LP Base page ability) and returns the advertised + pause setting that was received from the link partner. + + Side effects: + None + + Notes/Warnings: + The user must make sure auto-negotiation has completed by calling + mtdAutonegIsCompleted() prior to calling this function. + +******************************************************************************/ +MTD_STATUS mtdGetLPAdvertisedPause +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_U8 *pauseBits +); + + + +/****************************************************************************** +MTD_STATUS mtdGetPhyRevision +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_DEVICE_ID *phyRev, + OUT MTD_U8 *numPorts, + OUT MTD_U8 *thisPort +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + phyRev - revision of this chip, see MTD_DEVICE_ID definition for + a list of chip revisions with different options + numPorts - number of ports on this chip (see note below) + thisPort - this port number 0-1, or 0-4 + + Returns: + MTD_OK if query was successful, MTD_FAIL if not. + + Will return MTD_FAIL on an unsupported PHY (but will attempt to + return correct version). See below for a list of unsupported PHYs. + + Description: + Determines the PHY revision and returns the value in phyRev. + See definition of MTD_DEVICE_ID for a list of available + devices and capabilities. + + Side effects: + None. + + Notes/Warnings: + The phyRev can be used to determine number PHY revision, + number of ports, which port this is from PHY perspective + (0-based indexing 0...3 or 0..2) and what capabilities + the PHY has. + + If phyRev is MTD_REV_UNKNOWN, numPorts and thisPort will be returned + as 0 and the function will return MTD_FAIL. + + If T-unit is in download mode, thisPort will be returned as 0. + + 88X33X0 Z1/Z2 is not supported starting with version 1.2 of API. + E20X0 Z2 is not supported starting with version 1.2 of API. + +******************************************************************************/ +MTD_STATUS mtdGetPhyRevision +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_DEVICE_ID *phyRev, + OUT MTD_U8 *numPorts, + OUT MTD_U8 *thisPort +); + + + +/***************************************************************************** +MTD_STATUS mtdGetForcedSpeed +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *speedIsForced, + OUT MTD_U16 *forcedSpeed +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + speedIsForced - MTD_TRUE if an is disabled (1.0.12 == 0) AND + the speed in 1.0.13/6 is set to 10BT or 100BT (speeds which do + not require an to train). + forcedSpeed - one of the following if speedIsForced is MTD_TRUE + MTD_SPEED_10M_HD_AN_DIS - speed forced to 10BT half-duplex + MTD_SPEED_10M_FD_AN_DIS - speed forced to 10BT full-duplex + MTD_SPEED_100M_HD_AN_DIS - speed forced to 100BT half-duplex + MTD_SPEED_100M_FD_AN_DIS - speed forced to 100BT full-duplex + + Returns: + MTD_OK if the query was successful, or MTD_FAIL if not + + Description: + Checks if AN is disabled (7.0.12=0) and if the speed select in + register 1.0.13 and 1.0.6 is set to either 10BT or 100BT speeds. If + all of this is true, returns MTD_TRUE in speedIsForced along with + the speed/duplex setting in forcedSpeedBits. If any of this is + false (AN is enabled, or the speed is set to 1000BT or 10GBT), then + speedIsForced is returned MTD_FALSE and the forcedSpeedBit value + is invalid. + + Notes/Warnings: + None. + +******************************************************************************/ +MTD_STATUS mtdGetForcedSpeed +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + OUT MTD_BOOL *speedIsForced, + OUT MTD_U16 *forcedSpeed +); + + +/***************************************************************************** +MTD_STATUS mtdUndoForcedSpeed +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_BOOL anRestart +); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + anRestart - this takes the value of MTD_TRUE or MTD_FALSE and indicates + if auto-negotiation should be restarted following the speed + enable change. If this is MTD_FALSE, the change will not + take effect until AN is restarted in some other way (link + drop, toggle low power, toggle AN enable, toggle soft reset). + + If this is MTD_TRUE and AN has been disabled, it will be + enabled before being restarted. + + Outputs: + None + + Returns: + MTD_OK if the change was successful, or MTD_FAIL if not + + Description: + Sets the speed bits in 1.0 back to the power-on default of 11b + (10GBASE-T). Enables auto-negotiation. + + Does a software reset of the T unit and wait until it is complete before + enabling AN and returning. + + Notes/Warnings: + None. + +******************************************************************************/ +MTD_STATUS mtdUndoForcedSpeed +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port, + IN MTD_BOOL anRestart +); + + +/****************************************************************************** + MTD_STATUS mtdAutonegEnable + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + None + + Returns: + MTD_OK or MTD_FAIL, if action was successful or not + + Description: + Re-enables auto-negotiation. + + Side effects: + + Notes/Warnings: + Restart autonegation will not take effect if AN is disabled. + +******************************************************************************/ +MTD_STATUS mtdAutonegEnable +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port +); + + + +/****************************************************************************** + MTD_STATUS mtdAutonegRestart + ( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port + ); + + Inputs: + devPtr - pointer to MTD_DEV initialized by mtdLoadDriver() call + port - MDIO port address, 0-31 + + Outputs: + None + + Returns: + MTD_OK or MTD_FAIL, depending on if action was successful + + Description: + Restarts auto-negotiation. The bit is self-clearing. If the link is up, + the link will drop and auto-negotiation will start again. + + Side effects: + None. + + Notes/Warnings: + Restarting auto-negotiation will have no effect if auto-negotiation is + disabled. + + This function is important as it is necessary to restart auto-negotiation + after changing many auto-negotiation settings before the changes will take + effect. + +******************************************************************************/ +MTD_STATUS mtdAutonegRestart +( + IN MTD_DEV_PTR devPtr, + IN MTD_U16 port +); + + + +/****************************************************************************** +MTD_STATUS mtdIsPhyRevisionValid +( + IN MTD_DEVICE_ID phyRev +); + + + Inputs: + phyRev - a revision id to be checked against MTD_DEVICE_ID type + + Outputs: + None + + Returns: + MTD_OK if phyRev is a valid revision, MTD_FAIL otherwise + + Description: + Takes phyRev and returns MTD_OK if it is one of the MTD_DEVICE_ID + type, otherwise returns MTD_FAIL. + + Side effects: + None. + + Notes/Warnings: + None + +******************************************************************************/ +MTD_STATUS mtdIsPhyRevisionValid +( + IN MTD_DEVICE_ID phyRev +); + +#if C_LINKAGE +#if defined __cplusplus +} +#endif +#endif + +#endif /* _TXGBE_MTD_H_ */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_param.c b/drivers/net/ethernet/netswift/txgbe/txgbe_param.c new file mode 100644 index 0000000000000..214993fb1a9b9 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_param.c @@ -0,0 +1,1191 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_param.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#include <linux/types.h> +#include <linux/module.h> + +#include "txgbe.h" + +/* This is the only thing that needs to be changed to adjust the + * maximum number of ports that the driver can manage. + */ +#define TXGBE_MAX_NIC 32 +#define OPTION_UNSET -1 +#define OPTION_DISABLED 0 +#define OPTION_ENABLED 1 + +#define STRINGIFY(foo) #foo /* magic for getting defines into strings */ +#define XSTRINGIFY(bar) STRINGIFY(bar) + +#define TXGBE_PARAM_INIT { [0 ... TXGBE_MAX_NIC] = OPTION_UNSET } + +#define TXGBE_PARAM(X, desc) \ + static int X[TXGBE_MAX_NIC+1] = TXGBE_PARAM_INIT; \ + static unsigned int num_##X; \ + module_param_array(X, int, &num_##X, 0); \ + MODULE_PARM_DESC(X, desc); + +/* ffe_main (KR/KX4/KX/SFI) + * + * Valid Range: 0-60 + * + * Default Value: 27 + */ +TXGBE_PARAM(FFE_MAIN, + "TX_EQ MAIN (0 - 40)"); +#define TXGBE_DEFAULT_FFE_MAIN 27 + +/* ffe_pre + * + * Valid Range: 0-60 + * + * Default Value: 8 + */ + +TXGBE_PARAM(FFE_PRE, + "TX_EQ PRE (0 - 40)"); +#define TXGBE_DEFAULT_FFE_PRE 8 + +/* ffe_post (VF Alloc Mode) + * + * Valid Range: 0-60 + * + * Default Value: 44 + */ + +TXGBE_PARAM(FFE_POST, + "TX_EQ POST (0 - 40)"); +#define TXGBE_DEFAULT_FFE_POST 44 + +/* ffe_set + * + * Valid Range: 0-4 + * + * Default Value: 0 + */ + +TXGBE_PARAM(FFE_SET, + "TX_EQ SET must choose to take effect (0 = NULL, 1 = sfi, 2 = kr, 3 = kx4, 4 = kx)"); +#define TXGBE_DEFAULT_FFE_SET 0 + +/* backplane_mode + * + * Valid Range: 0-4 + * - 0 - NULL + * - 1 - sfi + * - 2 - kr + * - 3 - kx4 + * - 4 - kx + * + * Default Value: 0 + */ + +TXGBE_PARAM(backplane_mode, + "Backplane Mode Support(0 = NULL, 1 = sfi, 2 = kr, 3 = kx4, 4 = kx)"); + +#define TXGBE_BP_NULL 0 +#define TXGBE_BP_SFI 1 +#define TXGBE_BP_KR 2 +#define TXGBE_BP_KX4 3 +#define TXGBE_BP_KX 4 +#define TXGBE_DEFAULT_BP_MODE TXGBE_BP_NULL + +/* backplane_auto + * + * Valid Range: 0-1 + * - 0 - NO AUTO + * - 1 - AUTO + * Default Value: 0 + */ + +TXGBE_PARAM(backplane_auto, + "Backplane AUTO mode (0 = NO AUTO, 1 = AUTO)"); + +#define TXGBE_BP_NAUTO 0 +#define TXGBE_BP_AUTO 1 +#define TXGBE_DEFAULT_BP_AUTO -1 + +/* VF_alloc_mode (VF Alloc Mode) + * + * Valid Range: 0-1 + * - 0 - 2 * 64 + * - 1 - 4 * 32 + * - 2 - 8 * 16 + * + * Default Value: 2 + */ + +TXGBE_PARAM(vf_alloc_mode, + "Change VF Alloc Mode (0 = 2*64, 1 = 4*32, 2 = 8*16)"); + +#define TXGBE_2Q 0 +#define TXGBE_4Q 1 +#define TXGBE_8Q 2 +#define TXGBE_DEFAULT_NUMQ TXGBE_2Q + +/* IntMode (Interrupt Mode) + * + * Valid Range: 0-2 + * - 0 - Legacy Interrupt + * - 1 - MSI Interrupt + * - 2 - MSI-X Interrupt(s) + * + * Default Value: 2 + */ + +TXGBE_PARAM(InterruptType, + "Change Interrupt Mode (0=Legacy, 1=MSI, 2=MSI-X), " + "default IntMode (deprecated)"); + +TXGBE_PARAM(IntMode, + "Change Interrupt Mode (0=Legacy, 1=MSI, 2=MSI-X), " + "default 2"); + +#define TXGBE_INT_LEGACY 0 +#define TXGBE_INT_MSI 1 +#define TXGBE_INT_MSIX 2 +#define TXGBE_DEFAULT_INT TXGBE_INT_MSIX + +/* MQ - Multiple Queue enable/disable + * + * Valid Range: 0, 1 + * - 0 - disables MQ + * - 1 - enables MQ + * + * Default Value: 1 + */ + +TXGBE_PARAM(MQ, + "Disable or enable Multiple Queues, default 1"); + +/* RSS - Receive-Side Scaling (RSS) Descriptor Queues + * + * Valid Range: 0-64 + * - 0 - enables RSS and sets the Desc. Q's to min(64, num_online_cpus()). + * - 1-64 - enables RSS and sets the Desc. Q's to the specified value. + * + * Default Value: 0 + */ + +TXGBE_PARAM(RSS, + "Number of Receive-Side Scaling Descriptor Queues, " + "default 0=number of cpus"); + +/* VMDQ - Virtual Machine Device Queues (VMDQ) + * + * Valid Range: 1-16 + * - 1 Disables VMDQ by allocating only a single queue. + * - 2-16 - enables VMDQ and sets the Desc. Q's to the specified value. + * + * Default Value: 1 + */ + +#define TXGBE_DEFAULT_NUM_VMDQ 8 + +TXGBE_PARAM(VMDQ, + "Number of Virtual Machine Device Queues: 0/1 = disable, " + "2-16 enable (default=" XSTRINGIFY(TXGBE_DEFAULT_NUM_VMDQ) ")"); + +/* Interrupt Throttle Rate (interrupts/sec) + * + * Valid Range: 980-500000 (0=off, 1=dynamic) + * + * Default Value: 1 + */ +#define DEFAULT_ITR 1 +TXGBE_PARAM(InterruptThrottleRate, + "Maximum interrupts per second, per vector, " + "(0,1,980-500000), default 1"); + +#define MAX_ITR TXGBE_MAX_INT_RATE +#define MIN_ITR TXGBE_MIN_INT_RATE + +/* LLIPort (Low Latency Interrupt TCP Port) + * + * Valid Range: 0 - 65535 + * + * Default Value: 0 (disabled) + */ +TXGBE_PARAM(LLIPort, + "Low Latency Interrupt TCP Port (0-65535)"); + +#define DEFAULT_LLIPORT 0 +#define MAX_LLIPORT 0xFFFF +#define MIN_LLIPORT 0 + +/* LLISize (Low Latency Interrupt on Packet Size) + * + * Valid Range: 0 - 1500 + * + * Default Value: 0 (disabled) + */ + +TXGBE_PARAM(LLISize, + "Low Latency Interrupt on Packet Size (0-1500)"); + +#define DEFAULT_LLISIZE 0 +#define MAX_LLISIZE 1500 +#define MIN_LLISIZE 0 + +/* LLIEType (Low Latency Interrupt Ethernet Type) + * + * Valid Range: 0 - 0x8fff + * + * Default Value: 0 (disabled) + */ + +TXGBE_PARAM(LLIEType, + "Low Latency Interrupt Ethernet Protocol Type"); + +#define DEFAULT_LLIETYPE 0 +#define MAX_LLIETYPE 0x8fff +#define MIN_LLIETYPE 0 + +/* LLIVLANP (Low Latency Interrupt on VLAN priority threshold) + * + * Valid Range: 0 - 7 + * + * Default Value: 0 (disabled) + */ + +TXGBE_PARAM(LLIVLANP, + "Low Latency Interrupt on VLAN priority threshold"); + +#define DEFAULT_LLIVLANP 0 +#define MAX_LLIVLANP 7 +#define MIN_LLIVLANP 0 + +/* Flow Director packet buffer allocation level + * + * Valid Range: 1-3 + * 1 = 8k hash/2k perfect, + * 2 = 16k hash/4k perfect, + * 3 = 32k hash/8k perfect + * + * Default Value: 0 + */ + +TXGBE_PARAM(FdirPballoc, + "Flow Director packet buffer allocation level:\n" + "\t\t\t1 = 8k hash filters or 2k perfect filters\n" + "\t\t\t2 = 16k hash filters or 4k perfect filters\n" + "\t\t\t3 = 32k hash filters or 8k perfect filters"); + +#define TXGBE_DEFAULT_FDIR_PBALLOC TXGBE_FDIR_PBALLOC_64K + +/* Software ATR packet sample rate + * + * Valid Range: 0-255 0 = off, 1-255 = rate of Tx packet inspection + * + * Default Value: 20 + */ + +TXGBE_PARAM(AtrSampleRate, + "Software ATR Tx packet sample rate"); + +#define TXGBE_MAX_ATR_SAMPLE_RATE 255 +#define TXGBE_MIN_ATR_SAMPLE_RATE 1 +#define TXGBE_ATR_SAMPLE_RATE_OFF 0 +#define TXGBE_DEFAULT_ATR_SAMPLE_RATE 20 + +/* Enable/disable Large Receive Offload + * + * Valid Values: 0(off), 1(on) + * + * Default Value: 1 + */ + +TXGBE_PARAM(LRO, + "Large Receive Offload (0,1), default 1 = on"); + +/* Enable/disable support for untested SFP+ modules on adapters + * + * Valid Values: 0(Disable), 1(Enable) + * + * Default Value: 0 + */ + +TXGBE_PARAM(allow_unsupported_sfp, + "Allow unsupported and untested " + "SFP+ modules on adapters, default 0 = Disable"); + +/* Enable/disable support for DMA coalescing + * + * Valid Values: 0(off), 41 - 10000(on) + * + * Default Value: 0 + */ + +TXGBE_PARAM(dmac_watchdog, + "DMA coalescing watchdog in microseconds (0,41-10000)," + "default 0 = off"); + +/* Enable/disable support for VXLAN rx checksum offload + * + * Valid Values: 0(Disable), 1(Enable) + * + * Default Value: 1 on hardware that supports it + */ + +TXGBE_PARAM(vxlan_rx, + "VXLAN receive checksum offload (0,1), default 1 = Enable"); + +/* Rx buffer mode + * + * Valid Range: 0-1 0 = no header split, 1 = hdr split + * + * Default Value: 0 + */ + +TXGBE_PARAM(RxBufferMode, + "0=(default)no header split\n" + "\t\t\t1=hdr split for recognized packet\n"); + +#define TXGBE_RXBUFMODE_NO_HEADER_SPLIT 0 +#define TXGBE_RXBUFMODE_HEADER_SPLIT 1 +#define TXGBE_DEFAULT_RXBUFMODE TXGBE_RXBUFMODE_NO_HEADER_SPLIT + +/* Cloud Switch mode + * + * Valid Range: 0-1 0 = disable Cloud Switch, 1 = enable Cloud Switch + * + * Default Value: 0 + */ + +TXGBE_PARAM(CloudSwitch, + "Cloud Switch (0,1), default 0 = disable, 1 = enable"); + +struct txgbe_option { + enum { enable_option, range_option, list_option } type; + const char *name; + const char *err; + const char *msg; + int def; + union { + struct { /* range_option info */ + int min; + int max; + } r; + struct { /* list_option info */ + int nr; + const struct txgbe_opt_list { + int i; + char *str; + } *p; + } l; + } arg; +}; + +static int txgbe_validate_option(u32 *value, + struct txgbe_option *opt) +{ + int val = (int)*value; + + if (val == OPTION_UNSET) { + txgbe_info("txgbe: Invalid %s specified (%d), %s\n", + opt->name, val, opt->err); + *value = (u32)opt->def; + return 0; + } + + switch (opt->type) { + case enable_option: + switch (val) { + case OPTION_ENABLED: + txgbe_info("txgbe: %s Enabled\n", opt->name); + return 0; + case OPTION_DISABLED: + txgbe_info("txgbe: %s Disabled\n", opt->name); + return 0; + } + break; + case range_option: + if ((val >= opt->arg.r.min && val <= opt->arg.r.max) || + val == opt->def) { + if (opt->msg) + txgbe_info("txgbe: %s set to %d, %s\n", + opt->name, val, opt->msg); + else + txgbe_info("txgbe: %s set to %d\n", + opt->name, val); + return 0; + } + break; + case list_option: { + int i; + const struct txgbe_opt_list *ent; + + for (i = 0; i < opt->arg.l.nr; i++) { + ent = &opt->arg.l.p[i]; + if (val == ent->i) { + if (ent->str[0] != '\0') + txgbe_info("%s\n", ent->str); + return 0; + } + } + } + break; + default: + BUG_ON(1); + } + + txgbe_info("txgbe: Invalid %s specified (%d), %s\n", + opt->name, val, opt->err); + *value = (u32)opt->def; + return -1; +} + +/** + * txgbe_check_options - Range Checking for Command Line Parameters + * @adapter: board private structure + * + * This routine checks all command line parameters for valid user + * input. If an invalid value is given, or if no user specified + * value exists, a default value is used. The final value is stored + * in a variable in the adapter structure. + **/ +void txgbe_check_options(struct txgbe_adapter *adapter) +{ + u32 bd = adapter->bd_number; + u32 *aflags = &adapter->flags; + struct txgbe_ring_feature *feature = adapter->ring_feature; + u32 vmdq; + + if (bd >= TXGBE_MAX_NIC) { + txgbe_notice( + "Warning: no configuration for board #%d\n", bd); + txgbe_notice("Using defaults for all values\n"); + } + { /* MAIN */ + u32 ffe_main; + static struct txgbe_option opt = { + .type = range_option, + .name = "FFE_MAIN", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_FFE_MAIN), + .def = TXGBE_DEFAULT_FFE_MAIN, + .arg = { .r = { .min = 0, + .max = 60} } + }; + + if (num_FFE_MAIN > bd) { + ffe_main = FFE_MAIN[bd]; + if (ffe_main == OPTION_UNSET) + ffe_main = FFE_MAIN[bd]; + txgbe_validate_option(&ffe_main, &opt); + adapter->ffe_main = ffe_main; + } else { + adapter->ffe_main = 27; + } + } + + { /* PRE */ + u32 ffe_pre; + static struct txgbe_option opt = { + .type = range_option, + .name = "FFE_PRE", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_FFE_PRE), + .def = TXGBE_DEFAULT_FFE_PRE, + .arg = { .r = { .min = 0, + .max = 60} } + }; + + if (num_FFE_PRE > bd) { + ffe_pre = FFE_PRE[bd]; + if (ffe_pre == OPTION_UNSET) + ffe_pre = FFE_PRE[bd]; + txgbe_validate_option(&ffe_pre, &opt); + adapter->ffe_pre = ffe_pre; + } else { + adapter->ffe_pre = 8; + } + } + + { /* POST */ + u32 ffe_post; + static struct txgbe_option opt = { + .type = range_option, + .name = "FFE_POST", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_FFE_POST), + .def = TXGBE_DEFAULT_FFE_POST, + .arg = { .r = { .min = 0, + .max = 60} } + }; + + if (num_FFE_POST > bd) { + ffe_post = FFE_POST[bd]; + if (ffe_post == OPTION_UNSET) + ffe_post = FFE_POST[bd]; + txgbe_validate_option(&ffe_post, &opt); + adapter->ffe_post = ffe_post; + } else { + adapter->ffe_post = 44; + } + } + + { /* ffe_set */ + u32 ffe_set; + static struct txgbe_option opt = { + .type = range_option, + .name = "FFE_SET", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_FFE_SET), + .def = TXGBE_DEFAULT_FFE_SET, + .arg = { .r = { .min = 0, + .max = 4} } + }; + + if (num_FFE_SET > bd) { + ffe_set = FFE_SET[bd]; + if (ffe_set == OPTION_UNSET) + ffe_set = FFE_SET[bd]; + txgbe_validate_option(&ffe_set, &opt); + adapter->ffe_set = ffe_set; + } else { + adapter->ffe_set = 0; + } + } + + { /* backplane_mode */ + u32 bp_mode; + static struct txgbe_option opt = { + .type = range_option, + .name = "backplane_mode", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_BP_MODE), + .def = TXGBE_DEFAULT_BP_MODE, + .arg = { .r = { .min = 0, + .max = 4} } + }; + + if (num_backplane_mode > bd) { + bp_mode = backplane_mode[bd]; + if (bp_mode == OPTION_UNSET) + bp_mode = backplane_mode[bd]; + txgbe_validate_option(&bp_mode, &opt); + adapter->backplane_mode = bp_mode; + } else { + adapter->backplane_mode = 0; + } + } + + { /* auto mode */ + u32 bp_auto; + static struct txgbe_option opt = { + .type = range_option, + .name = "bp_auto", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_BP_AUTO), + .def = TXGBE_DEFAULT_BP_AUTO, + .arg = { .r = { .min = 0, + .max = 2} } + }; + + if (num_backplane_auto > bd) { + bp_auto = backplane_auto[bd]; + if (bp_auto == OPTION_UNSET) + bp_auto = backplane_auto[bd]; + txgbe_validate_option(&bp_auto, &opt); + adapter->backplane_auto = bp_auto; + } else { + adapter->backplane_auto = -1; + } + } + + { /* VF_alloc_mode */ + u32 vf_mode; + static struct txgbe_option opt = { + .type = range_option, + .name = "vf_alloc_mode", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_NUMQ), + .def = TXGBE_DEFAULT_NUMQ, + .arg = { .r = { .min = TXGBE_2Q, + .max = TXGBE_8Q} } + }; + + if (num_vf_alloc_mode > bd) { + vf_mode = vf_alloc_mode[bd]; + if (vf_mode == OPTION_UNSET) + vf_mode = vf_alloc_mode[bd]; + txgbe_validate_option(&vf_mode, &opt); + switch (vf_mode) { + case TXGBE_8Q: + adapter->vf_mode = 15; + break; + case TXGBE_4Q: + adapter->vf_mode = 31; + break; + case TXGBE_2Q: + default: + adapter->vf_mode = 63; + break; + } + } else { + adapter->vf_mode = 63; + } + } + { /* Interrupt Mode */ + u32 int_mode; + static struct txgbe_option opt = { + .type = range_option, + .name = "Interrupt Mode", + .err = + "using default of "__MODULE_STRING(TXGBE_DEFAULT_INT), + .def = TXGBE_DEFAULT_INT, + .arg = { .r = { .min = TXGBE_INT_LEGACY, + .max = TXGBE_INT_MSIX} } + }; + + if (num_IntMode > bd || num_InterruptType > bd) { + int_mode = IntMode[bd]; + if (int_mode == OPTION_UNSET) + int_mode = InterruptType[bd]; + txgbe_validate_option(&int_mode, &opt); + switch (int_mode) { + case TXGBE_INT_MSIX: + if (!(*aflags & TXGBE_FLAG_MSIX_CAPABLE)) + txgbe_info( + "Ignoring MSI-X setting; " + "support unavailable\n"); + break; + case TXGBE_INT_MSI: + if (!(*aflags & TXGBE_FLAG_MSI_CAPABLE)) { + txgbe_info( + "Ignoring MSI setting; " + "support unavailable\n"); + } else { + *aflags &= ~TXGBE_FLAG_MSIX_CAPABLE; + } + break; + case TXGBE_INT_LEGACY: + default: + *aflags &= ~TXGBE_FLAG_MSIX_CAPABLE; + *aflags &= ~TXGBE_FLAG_MSI_CAPABLE; + break; + } + } else { + /* default settings */ + if (opt.def == TXGBE_INT_MSIX && + *aflags & TXGBE_FLAG_MSIX_CAPABLE) { + *aflags |= TXGBE_FLAG_MSIX_CAPABLE; + *aflags |= TXGBE_FLAG_MSI_CAPABLE; + } else if (opt.def == TXGBE_INT_MSI && + *aflags & TXGBE_FLAG_MSI_CAPABLE) { + *aflags &= ~TXGBE_FLAG_MSIX_CAPABLE; + *aflags |= TXGBE_FLAG_MSI_CAPABLE; + } else { + *aflags &= ~TXGBE_FLAG_MSIX_CAPABLE; + *aflags &= ~TXGBE_FLAG_MSI_CAPABLE; + } + } + } + { /* Multiple Queue Support */ + static struct txgbe_option opt = { + .type = enable_option, + .name = "Multiple Queue Support", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_MQ > bd) { + u32 mq = MQ[bd]; + txgbe_validate_option(&mq, &opt); + if (mq) + *aflags |= TXGBE_FLAG_MQ_CAPABLE; + else + *aflags &= ~TXGBE_FLAG_MQ_CAPABLE; + } else { + if (opt.def == OPTION_ENABLED) + *aflags |= TXGBE_FLAG_MQ_CAPABLE; + else + *aflags &= ~TXGBE_FLAG_MQ_CAPABLE; + } + /* Check Interoperability */ + if ((*aflags & TXGBE_FLAG_MQ_CAPABLE) && + !(*aflags & TXGBE_FLAG_MSIX_CAPABLE)) { + DPRINTK(PROBE, INFO, + "Multiple queues are not supported while MSI-X " + "is disabled. Disabling Multiple Queues.\n"); + *aflags &= ~TXGBE_FLAG_MQ_CAPABLE; + } + } + + { /* Receive-Side Scaling (RSS) */ + static struct txgbe_option opt = { + .type = range_option, + .name = "Receive-Side Scaling (RSS)", + .err = "using default.", + .def = 0, + .arg = { .r = { .min = 0, + .max = 1} } + }; + u32 rss = RSS[bd]; + /* adjust Max allowed RSS queues based on MAC type */ + opt.arg.r.max = txgbe_max_rss_indices(adapter); + + if (num_RSS > bd) { + txgbe_validate_option(&rss, &opt); + /* base it off num_online_cpus() with hardware limit */ + if (!rss) + rss = min_t(int, opt.arg.r.max, + num_online_cpus()); + else + feature[RING_F_FDIR].limit = (u16)rss; + + feature[RING_F_RSS].limit = (u16)rss; + } else if (opt.def == 0) { + rss = min_t(int, txgbe_max_rss_indices(adapter), + num_online_cpus()); + feature[RING_F_RSS].limit = rss; + } + /* Check Interoperability */ + if (rss > 1) { + if (!(*aflags & TXGBE_FLAG_MQ_CAPABLE)) { + DPRINTK(PROBE, INFO, + "Multiqueue is disabled. " + "Limiting RSS.\n"); + feature[RING_F_RSS].limit = 1; + } + } + adapter->flags2 |= TXGBE_FLAG2_RSS_ENABLED; + } + { /* Virtual Machine Device Queues (VMDQ) */ + static struct txgbe_option opt = { + .type = range_option, + .name = "Virtual Machine Device Queues (VMDQ)", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED, + .arg = { .r = { .min = OPTION_DISABLED, + .max = TXGBE_MAX_VMDQ_INDICES + } } + }; + + if (num_VMDQ > bd) { + vmdq = VMDQ[bd]; + + txgbe_validate_option(&vmdq, &opt); + + /* zero or one both mean disabled from our driver's + * perspective */ + if (vmdq > 1) { + *aflags |= TXGBE_FLAG_VMDQ_ENABLED; + } else + *aflags &= ~TXGBE_FLAG_VMDQ_ENABLED; + + feature[RING_F_VMDQ].limit = (u16)vmdq; + } else { + if (opt.def == OPTION_DISABLED) + *aflags &= ~TXGBE_FLAG_VMDQ_ENABLED; + else + *aflags |= TXGBE_FLAG_VMDQ_ENABLED; + + feature[RING_F_VMDQ].limit = opt.def; + } + /* Check Interoperability */ + if (*aflags & TXGBE_FLAG_VMDQ_ENABLED) { + if (!(*aflags & TXGBE_FLAG_MQ_CAPABLE)) { + DPRINTK(PROBE, INFO, + "VMDQ is not supported while multiple " + "queues are disabled. " + "Disabling VMDQ.\n"); + *aflags &= ~TXGBE_FLAG_VMDQ_ENABLED; + feature[RING_F_VMDQ].limit = 0; + } + } + } + + { /* Interrupt Throttling Rate */ + static struct txgbe_option opt = { + .type = range_option, + .name = "Interrupt Throttling Rate (ints/sec)", + .err = "using default of "__MODULE_STRING(DEFAULT_ITR), + .def = DEFAULT_ITR, + .arg = { .r = { .min = MIN_ITR, + .max = MAX_ITR } } + }; + + if (num_InterruptThrottleRate > bd) { + u32 itr = InterruptThrottleRate[bd]; + switch (itr) { + case 0: + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + adapter->rx_itr_setting = 0; + break; + case 1: + DPRINTK(PROBE, INFO, "dynamic interrupt " + "throttling enabled\n"); + adapter->rx_itr_setting = 1; + break; + default: + txgbe_validate_option(&itr, &opt); + /* the first bit is used as control */ + adapter->rx_itr_setting = (u16)((1000000/itr) << 2); + break; + } + adapter->tx_itr_setting = adapter->rx_itr_setting; + } else { + adapter->rx_itr_setting = opt.def; + adapter->tx_itr_setting = opt.def; + } + } + + { /* Low Latency Interrupt TCP Port*/ + static struct txgbe_option opt = { + .type = range_option, + .name = "Low Latency Interrupt TCP Port", + .err = "using default of " + __MODULE_STRING(DEFAULT_LLIPORT), + .def = DEFAULT_LLIPORT, + .arg = { .r = { .min = MIN_LLIPORT, + .max = MAX_LLIPORT } } + }; + + if (num_LLIPort > bd) { + adapter->lli_port = LLIPort[bd]; + if (adapter->lli_port) { + txgbe_validate_option(&adapter->lli_port, &opt); + } else { + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + } + } else { + adapter->lli_port = opt.def; + } + } + { /* Low Latency Interrupt on Packet Size */ + static struct txgbe_option opt = { + .type = range_option, + .name = "Low Latency Interrupt on Packet Size", + .err = "using default of " + __MODULE_STRING(DEFAULT_LLISIZE), + .def = DEFAULT_LLISIZE, + .arg = { .r = { .min = MIN_LLISIZE, + .max = MAX_LLISIZE } } + }; + + if (num_LLISize > bd) { + adapter->lli_size = LLISize[bd]; + if (adapter->lli_size) { + txgbe_validate_option(&adapter->lli_size, &opt); + } else { + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + } + } else { + adapter->lli_size = opt.def; + } + } + { /* Low Latency Interrupt EtherType*/ + static struct txgbe_option opt = { + .type = range_option, + .name = "Low Latency Interrupt on Ethernet Protocol " + "Type", + .err = "using default of " + __MODULE_STRING(DEFAULT_LLIETYPE), + .def = DEFAULT_LLIETYPE, + .arg = { .r = { .min = MIN_LLIETYPE, + .max = MAX_LLIETYPE } } + }; + + if (num_LLIEType > bd) { + adapter->lli_etype = LLIEType[bd]; + if (adapter->lli_etype) { + txgbe_validate_option(&adapter->lli_etype, + &opt); + } else { + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + } + } else { + adapter->lli_etype = opt.def; + } + } + { /* LLI VLAN Priority */ + static struct txgbe_option opt = { + .type = range_option, + .name = "Low Latency Interrupt on VLAN priority " + "threshold", + .err = "using default of " + __MODULE_STRING(DEFAULT_LLIVLANP), + .def = DEFAULT_LLIVLANP, + .arg = { .r = { .min = MIN_LLIVLANP, + .max = MAX_LLIVLANP } } + }; + + if (num_LLIVLANP > bd) { + adapter->lli_vlan_pri = LLIVLANP[bd]; + if (adapter->lli_vlan_pri) { + txgbe_validate_option(&adapter->lli_vlan_pri, + &opt); + } else { + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + } + } else { + adapter->lli_vlan_pri = opt.def; + } + } + + { /* Flow Director packet buffer allocation */ + u32 fdir_pballoc_mode; + static struct txgbe_option opt = { + .type = range_option, + .name = "Flow Director packet buffer allocation", + .err = "using default of " + __MODULE_STRING(TXGBE_DEFAULT_FDIR_PBALLOC), + .def = TXGBE_DEFAULT_FDIR_PBALLOC, + .arg = {.r = {.min = TXGBE_FDIR_PBALLOC_64K, + .max = TXGBE_FDIR_PBALLOC_256K} } + }; + const char *pstring; + + if (num_FdirPballoc > bd) { + fdir_pballoc_mode = FdirPballoc[bd]; + txgbe_validate_option(&fdir_pballoc_mode, &opt); + switch (fdir_pballoc_mode) { + case TXGBE_FDIR_PBALLOC_256K: + adapter->fdir_pballoc = TXGBE_FDIR_PBALLOC_256K; + pstring = "256kB"; + break; + case TXGBE_FDIR_PBALLOC_128K: + adapter->fdir_pballoc = TXGBE_FDIR_PBALLOC_128K; + pstring = "128kB"; + break; + case TXGBE_FDIR_PBALLOC_64K: + default: + adapter->fdir_pballoc = TXGBE_FDIR_PBALLOC_64K; + pstring = "64kB"; + break; + } + DPRINTK(PROBE, INFO, "Flow Director will be allocated " + "%s of packet buffer\n", pstring); + } else { + adapter->fdir_pballoc = opt.def; + } + + } + { /* Flow Director ATR Tx sample packet rate */ + static struct txgbe_option opt = { + .type = range_option, + .name = "Software ATR Tx packet sample rate", + .err = "using default of " + __MODULE_STRING(TXGBE_DEFAULT_ATR_SAMPLE_RATE), + .def = TXGBE_DEFAULT_ATR_SAMPLE_RATE, + .arg = {.r = {.min = TXGBE_ATR_SAMPLE_RATE_OFF, + .max = TXGBE_MAX_ATR_SAMPLE_RATE} } + }; + static const char atr_string[] = + "ATR Tx Packet sample rate set to"; + + if (num_AtrSampleRate > bd) { + adapter->atr_sample_rate = AtrSampleRate[bd]; + + if (adapter->atr_sample_rate) { + txgbe_validate_option(&adapter->atr_sample_rate, + &opt); + DPRINTK(PROBE, INFO, "%s %d\n", atr_string, + adapter->atr_sample_rate); + } + } else { + adapter->atr_sample_rate = opt.def; + } + } + + { /* LRO - Set Large Receive Offload */ + struct txgbe_option opt = { + .type = enable_option, + .name = "LRO - Large Receive Offload", + .err = "defaulting to Disabled", + .def = OPTION_ENABLED + }; + struct net_device *netdev = adapter->netdev; + + if (!(adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE)) + opt.def = OPTION_DISABLED; + if (num_LRO > bd) { + u32 lro = LRO[bd]; + txgbe_validate_option(&lro, &opt); + if (lro) + netdev->features |= NETIF_F_LRO; + else + netdev->features &= ~NETIF_F_LRO; + } else if (opt.def == OPTION_ENABLED) { + netdev->features |= NETIF_F_LRO; + } else { + netdev->features &= ~NETIF_F_LRO; + } + + if ((netdev->features & NETIF_F_LRO) && + !(adapter->flags2 & TXGBE_FLAG2_RSC_CAPABLE)) { + DPRINTK(PROBE, INFO, + "RSC is not supported on this " + "hardware. Disabling RSC.\n"); + netdev->features &= ~NETIF_F_LRO; + } + } + { /* + * allow_unsupported_sfp - Enable/Disable support for unsupported + * and untested SFP+ modules. + */ + struct txgbe_option opt = { + .type = enable_option, + .name = "allow_unsupported_sfp", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED + }; + if (num_allow_unsupported_sfp > bd) { + u32 enable_unsupported_sfp = + allow_unsupported_sfp[bd]; + txgbe_validate_option(&enable_unsupported_sfp, &opt); + if (enable_unsupported_sfp) { + adapter->hw.allow_unsupported_sfp = true; + } else { + adapter->hw.allow_unsupported_sfp = false; + } + } else if (opt.def == OPTION_ENABLED) { + adapter->hw.allow_unsupported_sfp = true; + } else { + adapter->hw.allow_unsupported_sfp = false; + } + } + + { /* DMA Coalescing */ + struct txgbe_option opt = { + .type = range_option, + .name = "dmac_watchdog", + .err = "defaulting to 0 (disabled)", + .def = 0, + .arg = { .r = { .min = 41, .max = 10000 } }, + }; + const char *cmsg = "DMA coalescing not supported on this " + "hardware"; + + opt.err = cmsg; + opt.msg = cmsg; + opt.arg.r.min = 0; + opt.arg.r.max = 0; + + if (num_dmac_watchdog > bd) { + u32 dmac_wd = dmac_watchdog[bd]; + + txgbe_validate_option(&dmac_wd, &opt); + adapter->hw.mac.dmac_config.watchdog_timer = (u16)dmac_wd; + } else { + adapter->hw.mac.dmac_config.watchdog_timer = opt.def; + } + } + { /* VXLAN rx offload */ + struct txgbe_option opt = { + .type = range_option, + .name = "vxlan_rx", + .err = "defaulting to 1 (enabled)", + .def = 1, + .arg = { .r = { .min = 0, .max = 1 } }, + }; + const char *cmsg = "VXLAN rx offload not supported on this " + "hardware"; + const u32 flag = TXGBE_FLAG_VXLAN_OFFLOAD_ENABLE; + + if (!(adapter->flags & TXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) { + opt.err = cmsg; + opt.msg = cmsg; + opt.def = 0; + opt.arg.r.max = 0; + } + if (num_vxlan_rx > bd) { + u32 enable_vxlan_rx = vxlan_rx[bd]; + + txgbe_validate_option(&enable_vxlan_rx, &opt); + if (enable_vxlan_rx) + adapter->flags |= flag; + else + adapter->flags &= ~flag; + } else if (opt.def) { + adapter->flags |= flag; + } else { + adapter->flags &= ~flag; + } + } + + { /* Rx buffer mode */ + u32 rx_buf_mode; + static struct txgbe_option opt = { + .type = range_option, + .name = "Rx buffer mode", + .err = "using default of " + __MODULE_STRING(TXGBE_DEFAULT_RXBUFMODE), + .def = TXGBE_DEFAULT_RXBUFMODE, + .arg = {.r = {.min = TXGBE_RXBUFMODE_NO_HEADER_SPLIT, + .max = TXGBE_RXBUFMODE_HEADER_SPLIT} } + + }; + + if (num_RxBufferMode > bd) { + rx_buf_mode = RxBufferMode[bd]; + txgbe_validate_option(&rx_buf_mode, &opt); + switch (rx_buf_mode) { + case TXGBE_RXBUFMODE_NO_HEADER_SPLIT: + *aflags &= ~TXGBE_FLAG_RX_HS_ENABLED; + break; + case TXGBE_RXBUFMODE_HEADER_SPLIT: + *aflags |= TXGBE_FLAG_RX_HS_ENABLED; + break; + default: + break; + } + } else { + *aflags &= ~TXGBE_FLAG_RX_HS_ENABLED; + } + + } + { /* Cloud Switch */ + struct txgbe_option opt = { + .type = range_option, + .name = "CloudSwitch", + .err = "defaulting to 0 (disabled)", + .def = 0, + .arg = { .r = { .min = 0, .max = 1 } }, + }; + + if (num_CloudSwitch > bd) { + u32 enable_cloudswitch = CloudSwitch[bd]; + + txgbe_validate_option(&enable_cloudswitch, &opt); + if (enable_cloudswitch) + adapter->flags |= + TXGBE_FLAG2_CLOUD_SWITCH_ENABLED; + else + adapter->flags &= + ~TXGBE_FLAG2_CLOUD_SWITCH_ENABLED; + } else if (opt.def) { + adapter->flags |= TXGBE_FLAG2_CLOUD_SWITCH_ENABLED; + } else { + adapter->flags &= ~TXGBE_FLAG2_CLOUD_SWITCH_ENABLED; + } + } +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_phy.c b/drivers/net/ethernet/netswift/txgbe/txgbe_phy.c new file mode 100644 index 0000000000000..2db6541f95a18 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_phy.c @@ -0,0 +1,1014 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_phy.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + +#include "txgbe_phy.h" +#include "txgbe_mtd.h" + +/** + * txgbe_check_reset_blocked - check status of MNG FW veto bit + * @hw: pointer to the hardware structure + * + * This function checks the MMNGC.MNG_VETO bit to see if there are + * any constraints on link from manageability. For MAC's that don't + * have this bit just return faluse since the link can not be blocked + * via this method. + **/ +s32 txgbe_check_reset_blocked(struct txgbe_hw *hw) +{ + u32 mmngc; + + DEBUGFUNC("\n"); + + mmngc = rd32(hw, TXGBE_MIS_ST); + if (mmngc & TXGBE_MIS_ST_MNG_VETO) { + ERROR_REPORT1(TXGBE_ERROR_SOFTWARE, + "MNG_VETO bit detected.\n"); + return true; + } + + return false; +} + + +/** + * txgbe_get_phy_id - Get the phy type + * @hw: pointer to hardware structure + * + **/ +s32 txgbe_get_phy_id(struct txgbe_hw *hw) +{ + u32 status; + u16 phy_id_high = 0; + u16 phy_id_low = 0; + u8 numport, thisport; + DEBUGFUNC("\n"); + + status = mtdHwXmdioRead(&hw->phy_dev, hw->phy.addr, + TXGBE_MDIO_PMA_PMD_DEV_TYPE, + TXGBE_MDIO_PHY_ID_HIGH, &phy_id_high); + + if (status == 0) { + hw->phy.id = (u32)(phy_id_high << 16); + status = mtdHwXmdioRead(&hw->phy_dev, hw->phy.addr, + TXGBE_MDIO_PMA_PMD_DEV_TYPE, + TXGBE_MDIO_PHY_ID_LOW, &phy_id_low); + hw->phy.id |= (u32)(phy_id_low & TXGBE_PHY_REVISION_MASK); + } + + if (status == 0) { + status = mtdGetPhyRevision(&hw->phy_dev, hw->phy.addr, + (MTD_DEVICE_ID *)&hw->phy.revision, &numport, &thisport); + if (status == MTD_FAIL) { + ERROR_REPORT1(TXGBE_ERROR_INVALID_STATE, + "Error in mtdGetPhyRevision()\n"); + } + } + return status; +} + +/** + * txgbe_get_phy_type_from_id - Get the phy type + * @phy_id: PHY ID information + * + **/ +enum txgbe_phy_type txgbe_get_phy_type_from_id(struct txgbe_hw *hw) +{ + enum txgbe_phy_type phy_type; + u16 ext_ability = 0; + + DEBUGFUNC("\n"); + + switch (hw->phy.id) { + case TN1010_PHY_ID: + phy_type = txgbe_phy_tn; + break; + case QT2022_PHY_ID: + phy_type = txgbe_phy_qt; + break; + case ATH_PHY_ID: + phy_type = txgbe_phy_nl; + break; + default: + phy_type = txgbe_phy_unknown; + break; + } + if (phy_type == txgbe_phy_unknown) { + mtdHwXmdioRead(&hw->phy_dev, hw->phy.addr, + TXGBE_MDIO_PMA_PMD_DEV_TYPE, + TXGBE_MDIO_PHY_EXT_ABILITY, &ext_ability); + + if (ext_ability & (TXGBE_MDIO_PHY_10GBASET_ABILITY | + TXGBE_MDIO_PHY_1000BASET_ABILITY)) + phy_type = txgbe_phy_cu_unknown; + else + phy_type = txgbe_phy_generic; + } + return phy_type; +} + +/** + * txgbe_reset_phy - Performs a PHY reset + * @hw: pointer to hardware structure + **/ +s32 txgbe_reset_phy(struct txgbe_hw *hw) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + + if (status != 0 || hw->phy.type == txgbe_phy_none) + goto out; + + /* Don't reset PHY if it's shut down due to overtemp. */ + if (!hw->phy.reset_if_overtemp && + (TXGBE_ERR_OVERTEMP == TCALL(hw, phy.ops.check_overtemp))) + goto out; + + /* Blocked by MNG FW so bail */ + txgbe_check_reset_blocked(hw); + if (((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) || + ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP)) + goto out; + + status = mtdHardwareReset(&hw->phy_dev, hw->phy.addr, 1000); + +out: + return status; +} + +/** + * txgbe_read_phy_mdi - Reads a value from a specified PHY register without + * the SWFW lock + * @hw: pointer to hardware structure + * @reg_addr: 32 bit address of PHY register to read + * @phy_data: Pointer to read data from PHY register + **/ +s32 txgbe_read_phy_reg_mdi(struct txgbe_hw *hw, u32 reg_addr, u32 device_type, + u16 *phy_data) +{ + u32 command; + s32 status = 0; + + /* setup and write the address cycle command */ + command = TXGBE_MSCA_RA(reg_addr) | + TXGBE_MSCA_PA(hw->phy.addr) | + TXGBE_MSCA_DA(device_type); + wr32(hw, TXGBE_MSCA, command); + + command = TXGBE_MSCC_CMD(TXGBE_MSCA_CMD_READ) | TXGBE_MSCC_BUSY; + wr32(hw, TXGBE_MSCC, command); + + /* wait to complete */ + status = po32m(hw, TXGBE_MSCC, + TXGBE_MSCC_BUSY, ~TXGBE_MSCC_BUSY, + TXGBE_MDIO_TIMEOUT, 10); + if (status != 0) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "PHY address command did not complete.\n"); + return TXGBE_ERR_PHY; + } + + /* read data from MSCC */ + *phy_data = 0xFFFF & rd32(hw, TXGBE_MSCC); + + return 0; +} + +/** + * txgbe_read_phy_reg - Reads a value from a specified PHY register + * using the SWFW lock - this function is needed in most cases + * @hw: pointer to hardware structure + * @reg_addr: 32 bit address of PHY register to read + * @phy_data: Pointer to read data from PHY register + **/ +s32 txgbe_read_phy_reg(struct txgbe_hw *hw, u32 reg_addr, + u32 device_type, u16 *phy_data) +{ + s32 status; + u32 gssr = hw->phy.phy_semaphore_mask; + + DEBUGFUNC("\n"); + + if (0 == TCALL(hw, mac.ops.acquire_swfw_sync, gssr)) { + status = txgbe_read_phy_reg_mdi(hw, reg_addr, device_type, + phy_data); + TCALL(hw, mac.ops.release_swfw_sync, gssr); + } else { + status = TXGBE_ERR_SWFW_SYNC; + } + + return status; +} + +/** + * txgbe_write_phy_reg_mdi - Writes a value to specified PHY register + * without SWFW lock + * @hw: pointer to hardware structure + * @reg_addr: 32 bit PHY register to write + * @device_type: 5 bit device type + * @phy_data: Data to write to the PHY register + **/ +s32 txgbe_write_phy_reg_mdi(struct txgbe_hw *hw, u32 reg_addr, + u32 device_type, u16 phy_data) +{ + u32 command; + s32 status = 0; + + /* setup and write the address cycle command */ + command = TXGBE_MSCA_RA(reg_addr) | + TXGBE_MSCA_PA(hw->phy.addr) | + TXGBE_MSCA_DA(device_type); + wr32(hw, TXGBE_MSCA, command); + + command = phy_data | TXGBE_MSCC_CMD(TXGBE_MSCA_CMD_WRITE) | + TXGBE_MSCC_BUSY; + wr32(hw, TXGBE_MSCC, command); + + /* wait to complete */ + status = po32m(hw, TXGBE_MSCC, + TXGBE_MSCC_BUSY, ~TXGBE_MSCC_BUSY, + TXGBE_MDIO_TIMEOUT, 10); + if (status != 0) { + ERROR_REPORT1(TXGBE_ERROR_POLLING, + "PHY address command did not complete.\n"); + return TXGBE_ERR_PHY; + } + + return 0; +} + +/** + * txgbe_write_phy_reg - Writes a value to specified PHY register + * using SWFW lock- this function is needed in most cases + * @hw: pointer to hardware structure + * @reg_addr: 32 bit PHY register to write + * @device_type: 5 bit device type + * @phy_data: Data to write to the PHY register + **/ +s32 txgbe_write_phy_reg(struct txgbe_hw *hw, u32 reg_addr, + u32 device_type, u16 phy_data) +{ + s32 status; + u32 gssr = hw->phy.phy_semaphore_mask; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, gssr) == 0) { + status = txgbe_write_phy_reg_mdi(hw, reg_addr, device_type, + phy_data); + TCALL(hw, mac.ops.release_swfw_sync, gssr); + } else { + status = TXGBE_ERR_SWFW_SYNC; + } + + return status; +} + +MTD_STATUS txgbe_read_mdio( + MTD_DEV * dev, + MTD_U16 port, + MTD_U16 mmd, + MTD_U16 reg, + MTD_U16 *value) +{ + struct txgbe_hw *hw = (struct txgbe_hw *)(dev->appData); + + if (hw->phy.addr != port) + return MTD_FAIL; + return txgbe_read_phy_reg(hw, reg, mmd, value); +} + +MTD_STATUS txgbe_write_mdio( + MTD_DEV * dev, + MTD_U16 port, + MTD_U16 mmd, + MTD_U16 reg, + MTD_U16 value) +{ + struct txgbe_hw *hw = (struct txgbe_hw *)(dev->appData); + + if (hw->phy.addr != port) + return MTD_FAIL; + + return txgbe_write_phy_reg(hw, reg, mmd, value); +} + +/** + * txgbe_setup_phy_link - Set and restart auto-neg + * @hw: pointer to hardware structure + * + * Restart auto-negotiation and PHY and waits for completion. + **/ +u32 txgbe_setup_phy_link(struct txgbe_hw *hw, u32 speed_set, bool autoneg_wait_to_complete) +{ + u16 speed = MTD_ADV_NONE; + MTD_DEV_PTR devptr = &hw->phy_dev; + MTD_BOOL anDone = MTD_FALSE; + u16 port = hw->phy.addr; + + UNREFERENCED_PARAMETER(speed_set); + DEBUGFUNC("\n"); + + if (!autoneg_wait_to_complete) { + mtdAutonegIsSpeedDuplexResolutionDone(devptr, port, &anDone); + if (anDone) { + mtdGetAutonegSpeedDuplexResolution(devptr, port, &speed); + } + } else { + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_10GB_FULL) + speed |= MTD_SPEED_10GIG_FD; + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_1GB_FULL) + speed |= MTD_SPEED_1GIG_FD; + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_100_FULL) + speed |= MTD_SPEED_100M_FD; + if (hw->phy.autoneg_advertised & TXGBE_LINK_SPEED_10_FULL) + speed |= MTD_SPEED_10M_FD; + mtdEnableSpeeds(devptr, port, speed, MTD_TRUE); + + /* wait autoneg to be done */ + speed = MTD_ADV_NONE; + } + + switch (speed) { + case MTD_SPEED_10GIG_FD: + return TXGBE_LINK_SPEED_10GB_FULL; + case MTD_SPEED_1GIG_FD: + return TXGBE_LINK_SPEED_1GB_FULL; + case MTD_SPEED_100M_FD: + return TXGBE_LINK_SPEED_100_FULL; + case MTD_SPEED_10M_FD: + return TXGBE_LINK_SPEED_10_FULL; + default: + return TXGBE_LINK_SPEED_UNKNOWN; + } + +} + +/** + * txgbe_setup_phy_link_speed - Sets the auto advertised capabilities + * @hw: pointer to hardware structure + * @speed: new link speed + **/ +u32 txgbe_setup_phy_link_speed(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + + DEBUGFUNC("\n"); + + /* + * Clear autoneg_advertised and set new values based on input link + * speed. + */ + hw->phy.autoneg_advertised = 0; + + if (speed & TXGBE_LINK_SPEED_10GB_FULL) + hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_10GB_FULL; + + if (speed & TXGBE_LINK_SPEED_1GB_FULL) + hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_1GB_FULL; + + if (speed & TXGBE_LINK_SPEED_100_FULL) + hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_100_FULL; + + if (speed & TXGBE_LINK_SPEED_10_FULL) + hw->phy.autoneg_advertised |= TXGBE_LINK_SPEED_10_FULL; + + /* Setup link based on the new speed settings */ + return txgbe_setup_phy_link(hw, speed, autoneg_wait_to_complete); +} + +/** + * txgbe_get_copper_link_capabilities - Determines link capabilities + * @hw: pointer to hardware structure + * @speed: pointer to link speed + * @autoneg: boolean auto-negotiation value + * + * Determines the supported link capabilities by reading the PHY auto + * negotiation register. + **/ +s32 txgbe_get_copper_link_capabilities(struct txgbe_hw *hw, + u32 *speed, + bool *autoneg) +{ + s32 status; + u16 speed_ability; + + DEBUGFUNC("\n"); + + *speed = 0; + *autoneg = true; + + status = mtdHwXmdioRead(&hw->phy_dev, hw->phy.addr, + TXGBE_MDIO_PMA_PMD_DEV_TYPE, + TXGBE_MDIO_PHY_SPEED_ABILITY, &speed_ability); + + if (status == 0) { + if (speed_ability & TXGBE_MDIO_PHY_SPEED_10G) + *speed |= TXGBE_LINK_SPEED_10GB_FULL; + if (speed_ability & TXGBE_MDIO_PHY_SPEED_1G) + *speed |= TXGBE_LINK_SPEED_1GB_FULL; + if (speed_ability & TXGBE_MDIO_PHY_SPEED_100M) + *speed |= TXGBE_LINK_SPEED_100_FULL; + if (speed_ability & TXGBE_MDIO_PHY_SPEED_10M) + *speed |= TXGBE_LINK_SPEED_10_FULL; + } + + return status; +} + +/** + * txgbe_identify_module - Identifies module type + * @hw: pointer to hardware structure + * + * Determines HW type and calls appropriate function. + **/ +s32 txgbe_identify_module(struct txgbe_hw *hw) +{ + s32 status = TXGBE_ERR_SFP_NOT_PRESENT; + + DEBUGFUNC("\n"); + + switch (TCALL(hw, mac.ops.get_media_type)) { + case txgbe_media_type_fiber: + status = txgbe_identify_sfp_module(hw); + break; + + default: + hw->phy.sfp_type = txgbe_sfp_type_not_present; + status = TXGBE_ERR_SFP_NOT_PRESENT; + break; + } + + return status; +} + +/** + * txgbe_identify_sfp_module - Identifies SFP modules + * @hw: pointer to hardware structure + * + * Searches for and identifies the SFP module and assigns appropriate PHY type. + **/ +s32 txgbe_identify_sfp_module(struct txgbe_hw *hw) +{ + s32 status = TXGBE_ERR_PHY_ADDR_INVALID; + u32 vendor_oui = 0; + enum txgbe_sfp_type stored_sfp_type = hw->phy.sfp_type; + u8 identifier = 0; + u8 comp_codes_1g = 0; + u8 comp_codes_10g = 0; + u8 oui_bytes[3] = {0, 0, 0}; + u8 cable_tech = 0; + u8 cable_spec = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.get_media_type) != txgbe_media_type_fiber) { + hw->phy.sfp_type = txgbe_sfp_type_not_present; + status = TXGBE_ERR_SFP_NOT_PRESENT; + goto out; + } + + /* LAN ID is needed for I2C access */ + txgbe_init_i2c(hw); + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_IDENTIFIER, + &identifier); + + if (status != 0) + goto err_read_i2c_eeprom; + + if (identifier != TXGBE_SFF_IDENTIFIER_SFP) { + hw->phy.type = txgbe_phy_sfp_unsupported; + status = TXGBE_ERR_SFP_NOT_SUPPORTED; + } else { + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_1GBE_COMP_CODES, + &comp_codes_1g); + + if (status != 0) + goto err_read_i2c_eeprom; + + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_10GBE_COMP_CODES, + &comp_codes_10g); + + if (status != 0) + goto err_read_i2c_eeprom; + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_CABLE_TECHNOLOGY, + &cable_tech); + + if (status != 0) + goto err_read_i2c_eeprom; + + /* ID Module + * ========= + * 0 SFP_DA_CU + * 1 SFP_SR + * 2 SFP_LR + * 3 SFP_DA_CORE0 + * 4 SFP_DA_CORE1 + * 5 SFP_SR/LR_CORE0 + * 6 SFP_SR/LR_CORE1 + * 7 SFP_act_lmt_DA_CORE0 + * 8 SFP_act_lmt_DA_CORE1 + * 9 SFP_1g_cu_CORE0 + * 10 SFP_1g_cu_CORE1 + * 11 SFP_1g_sx_CORE0 + * 12 SFP_1g_sx_CORE1 + */ + { + if (cable_tech & TXGBE_SFF_DA_PASSIVE_CABLE) { + if (hw->bus.lan_id == 0) + hw->phy.sfp_type = + txgbe_sfp_type_da_cu_core0; + else + hw->phy.sfp_type = + txgbe_sfp_type_da_cu_core1; + } else if (cable_tech & TXGBE_SFF_DA_ACTIVE_CABLE) { + TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_CABLE_SPEC_COMP, + &cable_spec); + if (cable_spec & + TXGBE_SFF_DA_SPEC_ACTIVE_LIMITING) { + if (hw->bus.lan_id == 0) + hw->phy.sfp_type = + txgbe_sfp_type_da_act_lmt_core0; + else + hw->phy.sfp_type = + txgbe_sfp_type_da_act_lmt_core1; + } else { + hw->phy.sfp_type = + txgbe_sfp_type_unknown; + } + } else if (comp_codes_10g & + (TXGBE_SFF_10GBASESR_CAPABLE | + TXGBE_SFF_10GBASELR_CAPABLE)) { + if (hw->bus.lan_id == 0) + hw->phy.sfp_type = + txgbe_sfp_type_srlr_core0; + else + hw->phy.sfp_type = + txgbe_sfp_type_srlr_core1; + } else if (comp_codes_1g & TXGBE_SFF_1GBASET_CAPABLE) { + if (hw->bus.lan_id == 0) + hw->phy.sfp_type = + txgbe_sfp_type_1g_cu_core0; + else + hw->phy.sfp_type = + txgbe_sfp_type_1g_cu_core1; + } else if (comp_codes_1g & TXGBE_SFF_1GBASESX_CAPABLE) { + if (hw->bus.lan_id == 0) + hw->phy.sfp_type = + txgbe_sfp_type_1g_sx_core0; + else + hw->phy.sfp_type = + txgbe_sfp_type_1g_sx_core1; + } else if (comp_codes_1g & TXGBE_SFF_1GBASELX_CAPABLE) { + if (hw->bus.lan_id == 0) + hw->phy.sfp_type = + txgbe_sfp_type_1g_lx_core0; + else + hw->phy.sfp_type = + txgbe_sfp_type_1g_lx_core1; + } else { + hw->phy.sfp_type = txgbe_sfp_type_unknown; + } + } + + if (hw->phy.sfp_type != stored_sfp_type) + hw->phy.sfp_setup_needed = true; + + /* Determine if the SFP+ PHY is dual speed or not. */ + hw->phy.multispeed_fiber = false; + if (((comp_codes_1g & TXGBE_SFF_1GBASESX_CAPABLE) && + (comp_codes_10g & TXGBE_SFF_10GBASESR_CAPABLE)) || + ((comp_codes_1g & TXGBE_SFF_1GBASELX_CAPABLE) && + (comp_codes_10g & TXGBE_SFF_10GBASELR_CAPABLE))) + hw->phy.multispeed_fiber = true; + + /* Determine PHY vendor */ + if (hw->phy.type != txgbe_phy_nl) { + hw->phy.id = identifier; + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_VENDOR_OUI_BYTE0, + &oui_bytes[0]); + + if (status != 0) + goto err_read_i2c_eeprom; + + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_VENDOR_OUI_BYTE1, + &oui_bytes[1]); + + if (status != 0) + goto err_read_i2c_eeprom; + + status = TCALL(hw, phy.ops.read_i2c_eeprom, + TXGBE_SFF_VENDOR_OUI_BYTE2, + &oui_bytes[2]); + + if (status != 0) + goto err_read_i2c_eeprom; + + vendor_oui = + ((oui_bytes[0] << TXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT) | + (oui_bytes[1] << TXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT) | + (oui_bytes[2] << TXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT)); + + switch (vendor_oui) { + case TXGBE_SFF_VENDOR_OUI_TYCO: + if (cable_tech & TXGBE_SFF_DA_PASSIVE_CABLE) + hw->phy.type = + txgbe_phy_sfp_passive_tyco; + break; + case TXGBE_SFF_VENDOR_OUI_FTL: + if (cable_tech & TXGBE_SFF_DA_ACTIVE_CABLE) + hw->phy.type = txgbe_phy_sfp_ftl_active; + else + hw->phy.type = txgbe_phy_sfp_ftl; + break; + case TXGBE_SFF_VENDOR_OUI_AVAGO: + hw->phy.type = txgbe_phy_sfp_avago; + break; + case TXGBE_SFF_VENDOR_OUI_INTEL: + hw->phy.type = txgbe_phy_sfp_intel; + break; + default: + if (cable_tech & TXGBE_SFF_DA_PASSIVE_CABLE) + hw->phy.type = + txgbe_phy_sfp_passive_unknown; + else if (cable_tech & TXGBE_SFF_DA_ACTIVE_CABLE) + hw->phy.type = + txgbe_phy_sfp_active_unknown; + else + hw->phy.type = txgbe_phy_sfp_unknown; + break; + } + } + + /* Allow any DA cable vendor */ + if (cable_tech & (TXGBE_SFF_DA_PASSIVE_CABLE | + TXGBE_SFF_DA_ACTIVE_CABLE)) { + status = 0; + goto out; + } + + /* Verify supported 1G SFP modules */ + if (comp_codes_10g == 0 && + !(hw->phy.sfp_type == txgbe_sfp_type_1g_cu_core1 || + hw->phy.sfp_type == txgbe_sfp_type_1g_cu_core0 || + hw->phy.sfp_type == txgbe_sfp_type_1g_lx_core0 || + hw->phy.sfp_type == txgbe_sfp_type_1g_lx_core1 || + hw->phy.sfp_type == txgbe_sfp_type_1g_sx_core0 || + hw->phy.sfp_type == txgbe_sfp_type_1g_sx_core1)) { + hw->phy.type = txgbe_phy_sfp_unsupported; + status = TXGBE_ERR_SFP_NOT_SUPPORTED; + goto out; + } + } + +out: + return status; + +err_read_i2c_eeprom: + hw->phy.sfp_type = txgbe_sfp_type_not_present; + if (hw->phy.type != txgbe_phy_nl) { + hw->phy.id = 0; + hw->phy.type = txgbe_phy_unknown; + } + return TXGBE_ERR_SFP_NOT_PRESENT; +} + +s32 txgbe_init_i2c(struct txgbe_hw *hw) +{ + + wr32(hw, TXGBE_I2C_ENABLE, 0); + + wr32(hw, TXGBE_I2C_CON, + (TXGBE_I2C_CON_MASTER_MODE | + TXGBE_I2C_CON_SPEED(1) | + TXGBE_I2C_CON_RESTART_EN | + TXGBE_I2C_CON_SLAVE_DISABLE)); + /* Default addr is 0xA0 ,bit 0 is configure for read/write! */ + wr32(hw, TXGBE_I2C_TAR, TXGBE_I2C_SLAVE_ADDR); + wr32(hw, TXGBE_I2C_SS_SCL_HCNT, 600); + wr32(hw, TXGBE_I2C_SS_SCL_LCNT, 600); + wr32(hw, TXGBE_I2C_RX_TL, 0); /* 1byte for rx full signal */ + wr32(hw, TXGBE_I2C_TX_TL, 4); + wr32(hw, TXGBE_I2C_SCL_STUCK_TIMEOUT, 0xFFFFFF); + wr32(hw, TXGBE_I2C_SDA_STUCK_TIMEOUT, 0xFFFFFF); + + wr32(hw, TXGBE_I2C_INTR_MASK, 0); + wr32(hw, TXGBE_I2C_ENABLE, 1); + return 0; +} + +s32 txgbe_clear_i2c(struct txgbe_hw *hw) +{ + s32 status = 0; + + /* wait for completion */ + status = po32m(hw, TXGBE_I2C_STATUS, + TXGBE_I2C_STATUS_MST_ACTIVITY, ~TXGBE_I2C_STATUS_MST_ACTIVITY, + TXGBE_I2C_TIMEOUT, 10); + if (status != 0) + goto out; + + wr32(hw, TXGBE_I2C_ENABLE, 0); + +out: + return status; +} + +/** + * txgbe_read_i2c_eeprom - Reads 8 bit EEPROM word over I2C interface + * @hw: pointer to hardware structure + * @byte_offset: EEPROM byte offset to read + * @eeprom_data: value read + * + * Performs byte read operation to SFP module's EEPROM over I2C interface. + **/ +s32 txgbe_read_i2c_eeprom(struct txgbe_hw *hw, u8 byte_offset, + u8 *eeprom_data) +{ + DEBUGFUNC("\n"); + + return TCALL(hw, phy.ops.read_i2c_byte, byte_offset, + TXGBE_I2C_EEPROM_DEV_ADDR, + eeprom_data); +} + +/** + * txgbe_read_i2c_sff8472 - Reads 8 bit word over I2C interface + * @hw: pointer to hardware structure + * @byte_offset: byte offset at address 0xA2 + * @eeprom_data: value read + * + * Performs byte read operation to SFP module's SFF-8472 data over I2C + **/ +s32 txgbe_read_i2c_sff8472(struct txgbe_hw *hw, u8 byte_offset, + u8 *sff8472_data) +{ + return TCALL(hw, phy.ops.read_i2c_byte, byte_offset, + TXGBE_I2C_EEPROM_DEV_ADDR2, + sff8472_data); +} + +/** + * txgbe_write_i2c_eeprom - Writes 8 bit EEPROM word over I2C interface + * @hw: pointer to hardware structure + * @byte_offset: EEPROM byte offset to write + * @eeprom_data: value to write + * + * Performs byte write operation to SFP module's EEPROM over I2C interface. + **/ +s32 txgbe_write_i2c_eeprom(struct txgbe_hw *hw, u8 byte_offset, + u8 eeprom_data) +{ + DEBUGFUNC("\n"); + + return TCALL(hw, phy.ops.write_i2c_byte, byte_offset, + TXGBE_I2C_EEPROM_DEV_ADDR, + eeprom_data); +} + +/** + * txgbe_read_i2c_byte_int - Reads 8 bit word over I2C + * @hw: pointer to hardware structure + * @byte_offset: byte offset to read + * @data: value read + * @lock: true if to take and release semaphore + * + * Performs byte read operation to SFP module's EEPROM over I2C interface at + * a specified device address. + **/ +STATIC s32 txgbe_read_i2c_byte_int(struct txgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 *data, bool lock) +{ + s32 status = 0; + u32 swfw_mask = hw->phy.phy_semaphore_mask; + + UNREFERENCED_PARAMETER(dev_addr); + + if (lock && 0 != TCALL(hw, mac.ops.acquire_swfw_sync, swfw_mask)) + return TXGBE_ERR_SWFW_SYNC; + + /* wait tx empty */ + status = po32m(hw, TXGBE_I2C_RAW_INTR_STAT, + TXGBE_I2C_INTR_STAT_TX_EMPTY, TXGBE_I2C_INTR_STAT_TX_EMPTY, + TXGBE_I2C_TIMEOUT, 10); + if (status != 0) + goto out; + + /* read data */ + wr32(hw, TXGBE_I2C_DATA_CMD, + byte_offset | TXGBE_I2C_DATA_CMD_STOP); + wr32(hw, TXGBE_I2C_DATA_CMD, TXGBE_I2C_DATA_CMD_READ); + + /* wait for read complete */ + status = po32m(hw, TXGBE_I2C_RAW_INTR_STAT, + TXGBE_I2C_INTR_STAT_RX_FULL, TXGBE_I2C_INTR_STAT_RX_FULL, + TXGBE_I2C_TIMEOUT, 10); + if (status != 0) + goto out; + + *data = 0xFF & rd32(hw, TXGBE_I2C_DATA_CMD); + +out: + if (lock) + TCALL(hw, mac.ops.release_swfw_sync, swfw_mask); + return status; +} + +/** + * txgbe_switch_i2c_slave_addr - Switch I2C slave address + * @hw: pointer to hardware structure + * @dev_addr: slave addr to switch + * + **/ +s32 txgbe_switch_i2c_slave_addr(struct txgbe_hw *hw, u8 dev_addr) +{ + wr32(hw, TXGBE_I2C_ENABLE, 0); + wr32(hw, TXGBE_I2C_TAR, dev_addr >> 1); + wr32(hw, TXGBE_I2C_ENABLE, 1); + return 0; +} + + +/** + * txgbe_read_i2c_byte - Reads 8 bit word over I2C + * @hw: pointer to hardware structure + * @byte_offset: byte offset to read + * @data: value read + * + * Performs byte read operation to SFP module's EEPROM over I2C interface at + * a specified device address. + **/ +s32 txgbe_read_i2c_byte(struct txgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 *data) +{ + txgbe_switch_i2c_slave_addr(hw, dev_addr); + + return txgbe_read_i2c_byte_int(hw, byte_offset, dev_addr, + data, true); +} + +/** + * txgbe_write_i2c_byte_int - Writes 8 bit word over I2C + * @hw: pointer to hardware structure + * @byte_offset: byte offset to write + * @data: value to write + * @lock: true if to take and release semaphore + * + * Performs byte write operation to SFP module's EEPROM over I2C interface at + * a specified device address. + **/ +STATIC s32 txgbe_write_i2c_byte_int(struct txgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 data, bool lock) +{ + s32 status = 0; + u32 swfw_mask = hw->phy.phy_semaphore_mask; + + UNREFERENCED_PARAMETER(dev_addr); + + if (lock && 0 != TCALL(hw, mac.ops.acquire_swfw_sync, swfw_mask)) + return TXGBE_ERR_SWFW_SYNC; + + /* wait tx empty */ + status = po32m(hw, TXGBE_I2C_RAW_INTR_STAT, + TXGBE_I2C_INTR_STAT_TX_EMPTY, TXGBE_I2C_INTR_STAT_TX_EMPTY, + TXGBE_I2C_TIMEOUT, 10); + if (status != 0) + goto out; + + wr32(hw, TXGBE_I2C_DATA_CMD, + byte_offset | TXGBE_I2C_DATA_CMD_STOP); + wr32(hw, TXGBE_I2C_DATA_CMD, + data | TXGBE_I2C_DATA_CMD_WRITE); + + /* wait for write complete */ + status = po32m(hw, TXGBE_I2C_RAW_INTR_STAT, + TXGBE_I2C_INTR_STAT_RX_FULL, TXGBE_I2C_INTR_STAT_RX_FULL, + TXGBE_I2C_TIMEOUT, 10); + +out: + if (lock) + TCALL(hw, mac.ops.release_swfw_sync, swfw_mask); + + return status; +} + +/** + * txgbe_write_i2c_byte - Writes 8 bit word over I2C + * @hw: pointer to hardware structure + * @byte_offset: byte offset to write + * @data: value to write + * + * Performs byte write operation to SFP module's EEPROM over I2C interface at + * a specified device address. + **/ +s32 txgbe_write_i2c_byte(struct txgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 data) +{ + return txgbe_write_i2c_byte_int(hw, byte_offset, dev_addr, + data, true); +} + +/** + * txgbe_tn_check_overtemp - Checks if an overtemp occurred. + * @hw: pointer to hardware structure + * + * Checks if the LASI temp alarm status was triggered due to overtemp + **/ +s32 txgbe_tn_check_overtemp(struct txgbe_hw *hw) +{ + s32 status = 0; + u32 ts_state; + + DEBUGFUNC("\n"); + + /* Check that the LASI temp alarm status was triggered */ + ts_state = rd32(hw, TXGBE_TS_ALARM_ST); + + if (ts_state & TXGBE_TS_ALARM_ST_DALARM) + status = TXGBE_ERR_UNDERTEMP; + else if (ts_state & TXGBE_TS_ALARM_ST_ALARM) + status = TXGBE_ERR_OVERTEMP; + + return status; +} + + +s32 txgbe_init_external_phy(struct txgbe_hw *hw) +{ + s32 status = 0; + + MTD_DEV_PTR devptr = &(hw->phy_dev); + + hw->phy.addr = 0; + + devptr->appData = hw; + status = mtdLoadDriver(txgbe_read_mdio, + txgbe_write_mdio, + MTD_FALSE, + NULL, + NULL, + NULL, + NULL, + hw->phy.addr, + devptr); + if (status != 0) { + ERROR_REPORT1(TXGBE_ERROR_INVALID_STATE, + "External PHY initilization failed.\n"); + return TXGBE_ERR_PHY; + } + + return status; +} + +s32 txgbe_set_phy_pause_advertisement(struct txgbe_hw *hw, u32 pause_bit) +{ + return mtdSetPauseAdvertisement(&hw->phy_dev, hw->phy.addr, + (pause_bit>>10)&0x3, MTD_FALSE); +} + +s32 txgbe_get_phy_advertised_pause(struct txgbe_hw *hw, u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + status = mtdHwXmdioRead(&hw->phy_dev, hw->phy.addr, + TXGBE_MDIO_AUTO_NEG_DEV_TYPE, + TXGBE_MDIO_AUTO_NEG_ADVT, &value); + *pause_bit = (u8)((value>>10)&0x3); + return status; + +} + +s32 txgbe_get_lp_advertised_pause(struct txgbe_hw *hw, u8 *pause_bit) +{ + return mtdGetLPAdvertisedPause(&hw->phy_dev, hw->phy.addr, pause_bit); +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_phy.h b/drivers/net/ethernet/netswift/txgbe/txgbe_phy.h new file mode 100644 index 0000000000000..f033b43cf4fe0 --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_phy.h @@ -0,0 +1,190 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_phy.h, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#ifndef _TXGBE_PHY_H_ +#define _TXGBE_PHY_H_ + +#include "txgbe.h" + +#define TXGBE_I2C_EEPROM_DEV_ADDR 0xA0 +#define TXGBE_I2C_EEPROM_DEV_ADDR2 0xA2 +#define TXGBE_I2C_EEPROM_BANK_LEN 0xFF + +/* EEPROM byte offsets */ +#define TXGBE_SFF_IDENTIFIER 0x0 +#define TXGBE_SFF_IDENTIFIER_SFP 0x3 +#define TXGBE_SFF_VENDOR_OUI_BYTE0 0x25 +#define TXGBE_SFF_VENDOR_OUI_BYTE1 0x26 +#define TXGBE_SFF_VENDOR_OUI_BYTE2 0x27 +#define TXGBE_SFF_1GBE_COMP_CODES 0x6 +#define TXGBE_SFF_10GBE_COMP_CODES 0x3 +#define TXGBE_SFF_CABLE_TECHNOLOGY 0x8 +#define TXGBE_SFF_CABLE_SPEC_COMP 0x3C +#define TXGBE_SFF_SFF_8472_SWAP 0x5C +#define TXGBE_SFF_SFF_8472_COMP 0x5E +#define TXGBE_SFF_SFF_8472_OSCB 0x6E +#define TXGBE_SFF_SFF_8472_ESCB 0x76 +#define TXGBE_SFF_IDENTIFIER_QSFP_PLUS 0xD +#define TXGBE_SFF_QSFP_VENDOR_OUI_BYTE0 0xA5 +#define TXGBE_SFF_QSFP_VENDOR_OUI_BYTE1 0xA6 +#define TXGBE_SFF_QSFP_VENDOR_OUI_BYTE2 0xA7 +#define TXGBE_SFF_QSFP_CONNECTOR 0x82 +#define TXGBE_SFF_QSFP_10GBE_COMP 0x83 +#define TXGBE_SFF_QSFP_1GBE_COMP 0x86 +#define TXGBE_SFF_QSFP_CABLE_LENGTH 0x92 +#define TXGBE_SFF_QSFP_DEVICE_TECH 0x93 + +/* Bitmasks */ +#define TXGBE_SFF_DA_PASSIVE_CABLE 0x4 +#define TXGBE_SFF_DA_ACTIVE_CABLE 0x8 +#define TXGBE_SFF_DA_SPEC_ACTIVE_LIMITING 0x4 +#define TXGBE_SFF_1GBASESX_CAPABLE 0x1 +#define TXGBE_SFF_1GBASELX_CAPABLE 0x2 +#define TXGBE_SFF_1GBASET_CAPABLE 0x8 +#define TXGBE_SFF_10GBASESR_CAPABLE 0x10 +#define TXGBE_SFF_10GBASELR_CAPABLE 0x20 +#define TXGBE_SFF_SOFT_RS_SELECT_MASK 0x8 +#define TXGBE_SFF_SOFT_RS_SELECT_10G 0x8 +#define TXGBE_SFF_SOFT_RS_SELECT_1G 0x0 +#define TXGBE_SFF_ADDRESSING_MODE 0x4 +#define TXGBE_SFF_QSFP_DA_ACTIVE_CABLE 0x1 +#define TXGBE_SFF_QSFP_DA_PASSIVE_CABLE 0x8 +#define TXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE 0x23 +#define TXGBE_SFF_QSFP_TRANSMITER_850NM_VCSEL 0x0 +#define TXGBE_I2C_EEPROM_READ_MASK 0x100 +#define TXGBE_I2C_EEPROM_STATUS_MASK 0x3 +#define TXGBE_I2C_EEPROM_STATUS_NO_OPERATION 0x0 +#define TXGBE_I2C_EEPROM_STATUS_PASS 0x1 +#define TXGBE_I2C_EEPROM_STATUS_FAIL 0x2 +#define TXGBE_I2C_EEPROM_STATUS_IN_PROGRESS 0x3 + +#define TXGBE_CS4227 0xBE /* CS4227 address */ +#define TXGBE_CS4227_GLOBAL_ID_LSB 0 +#define TXGBE_CS4227_SCRATCH 2 +#define TXGBE_CS4227_GLOBAL_ID_VALUE 0x03E5 +#define TXGBE_CS4227_SCRATCH_VALUE 0x5aa5 +#define TXGBE_CS4227_RETRIES 5 +#define TXGBE_CS4227_LINE_SPARE22_MSB 0x12AD /* Reg to program speed */ +#define TXGBE_CS4227_LINE_SPARE24_LSB 0x12B0 /* Reg to program EDC */ +#define TXGBE_CS4227_HOST_SPARE22_MSB 0x1AAD /* Reg to program speed */ +#define TXGBE_CS4227_HOST_SPARE24_LSB 0x1AB0 /* Reg to program EDC */ +#define TXGBE_CS4227_EDC_MODE_CX1 0x0002 +#define TXGBE_CS4227_EDC_MODE_SR 0x0004 +#define TXGBE_CS4227_RESET_HOLD 500 /* microseconds */ +#define TXGBE_CS4227_RESET_DELAY 500 /* milliseconds */ +#define TXGBE_CS4227_CHECK_DELAY 30 /* milliseconds */ +#define TXGBE_PE 0xE0 /* Port expander address */ +#define TXGBE_PE_OUTPUT 1 /* Output register offset */ +#define TXGBE_PE_CONFIG 3 /* Config register offset */ +#define TXGBE_PE_BIT1 (1 << 1) + +/* Flow control defines */ +#define TXGBE_TAF_SYM_PAUSE (0x1) +#define TXGBE_TAF_ASM_PAUSE (0x2) + +/* Bit-shift macros */ +#define TXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT 24 +#define TXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT 16 +#define TXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT 8 + +/* Vendor OUIs: format of OUI is 0x[byte0][byte1][byte2][00] */ +#define TXGBE_SFF_VENDOR_OUI_TYCO 0x00407600 +#define TXGBE_SFF_VENDOR_OUI_FTL 0x00906500 +#define TXGBE_SFF_VENDOR_OUI_AVAGO 0x00176A00 +#define TXGBE_SFF_VENDOR_OUI_INTEL 0x001B2100 + +/* I2C SDA and SCL timing parameters for standard mode */ +#define TXGBE_I2C_T_HD_STA 4 +#define TXGBE_I2C_T_LOW 5 +#define TXGBE_I2C_T_HIGH 4 +#define TXGBE_I2C_T_SU_STA 5 +#define TXGBE_I2C_T_HD_DATA 5 +#define TXGBE_I2C_T_SU_DATA 1 +#define TXGBE_I2C_T_RISE 1 +#define TXGBE_I2C_T_FALL 1 +#define TXGBE_I2C_T_SU_STO 4 +#define TXGBE_I2C_T_BUF 5 + +/* SFP+ SFF-8472 Compliance */ +#define TXGBE_SFF_SFF_8472_UNSUP 0x00 + + +enum txgbe_phy_type txgbe_get_phy_type_from_id(struct txgbe_hw *hw); +s32 txgbe_get_phy_id(struct txgbe_hw *hw); +s32 txgbe_reset_phy(struct txgbe_hw *hw); +s32 txgbe_read_phy_reg_mdi(struct txgbe_hw *hw, u32 reg_addr, u32 device_type, + u16 *phy_data); +s32 txgbe_write_phy_reg_mdi(struct txgbe_hw *hw, u32 reg_addr, u32 device_type, + u16 phy_data); +s32 txgbe_read_phy_reg(struct txgbe_hw *hw, u32 reg_addr, + u32 device_type, u16 *phy_data); +s32 txgbe_write_phy_reg(struct txgbe_hw *hw, u32 reg_addr, + u32 device_type, u16 phy_data); +u32 txgbe_setup_phy_link(struct txgbe_hw *hw, u32 speed_set, bool autoneg_wait_to_complete); +u32 txgbe_setup_phy_link_speed(struct txgbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); +s32 txgbe_get_copper_link_capabilities(struct txgbe_hw *hw, + u32 *speed, + bool *autoneg); +s32 txgbe_check_reset_blocked(struct txgbe_hw *hw); + +s32 txgbe_identify_module(struct txgbe_hw *hw); +s32 txgbe_identify_sfp_module(struct txgbe_hw *hw); +s32 txgbe_tn_check_overtemp(struct txgbe_hw *hw); +s32 txgbe_init_i2c(struct txgbe_hw *hw); +s32 txgbe_clear_i2c(struct txgbe_hw *hw); +s32 txgbe_switch_i2c_slave_addr(struct txgbe_hw *hw, u8 dev_addr); +s32 txgbe_read_i2c_byte(struct txgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 *data); + +s32 txgbe_write_i2c_byte(struct txgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 data); +s32 txgbe_read_i2c_eeprom(struct txgbe_hw *hw, u8 byte_offset, + u8 *eeprom_data); +s32 txgbe_write_i2c_eeprom(struct txgbe_hw *hw, u8 byte_offset, + u8 eeprom_data); +s32 txgbe_read_i2c_sff8472(struct txgbe_hw *hw, u8 byte_offset, + u8 *sff8472_data); +s32 txgbe_init_external_phy(struct txgbe_hw *hw); +s32 txgbe_set_phy_pause_advertisement(struct txgbe_hw *hw, u32 pause_bit); +s32 txgbe_get_phy_advertised_pause(struct txgbe_hw *hw, u8 *pause_bit); +s32 txgbe_get_lp_advertised_pause(struct txgbe_hw *hw, u8 *pause_bit); + +MTD_STATUS txgbe_read_mdio( + MTD_DEV * dev, + MTD_U16 port, + MTD_U16 mmd, + MTD_U16 reg, + MTD_U16 *value); + +MTD_STATUS txgbe_write_mdio( + MTD_DEV * dev, + MTD_U16 port, + MTD_U16 mmd, + MTD_U16 reg, + MTD_U16 value); + + +#endif /* _TXGBE_PHY_H_ */ diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_ptp.c b/drivers/net/ethernet/netswift/txgbe/txgbe_ptp.c new file mode 100644 index 0000000000000..4a614a550e47a --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_ptp.c @@ -0,0 +1,884 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_ptp.c, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#include "txgbe.h" +#include <linux/ptp_classify.h> + +/* + * SYSTIME is defined by a fixed point system which allows the user to + * define the scale counter increment value at every level change of + * the oscillator driving SYSTIME value. The time unit is determined by + * the clock frequency of the oscillator and TIMINCA register. + * The cyclecounter and timecounter structures are used to to convert + * the scale counter into nanoseconds. SYSTIME registers need to be converted + * to ns values by use of only a right shift. + * The following math determines the largest incvalue that will fit into + * the available bits in the TIMINCA register: + * Period * [ 2 ^ ( MaxWidth - PeriodWidth ) ] + * PeriodWidth: Number of bits to store the clock period + * MaxWidth: The maximum width value of the TIMINCA register + * Period: The clock period for the oscillator, which changes based on the link + * speed: + * At 10Gb link or no link, the period is 6.4 ns. + * At 1Gb link, the period is multiplied by 10. (64ns) + * At 100Mb link, the period is multiplied by 100. (640ns) + * round(): discard the fractional portion of the calculation + * + * The calculated value allows us to right shift the SYSTIME register + * value in order to quickly convert it into a nanosecond clock, + * while allowing for the maximum possible adjustment value. + * + * LinkSpeed ClockFreq ClockPeriod TIMINCA:IV + * 10000Mbps 156.25MHz 6.4*10^-9 0xCCCCCC(0xFFFFF/ns) + * 1000 Mbps 62.5 MHz 16 *10^-9 0x800000(0x7FFFF/ns) + * 100 Mbps 6.25 MHz 160*10^-9 0xA00000(0xFFFF/ns) + * 10 Mbps 0.625 MHz 1600*10^-9 0xC7F380(0xFFF/ns) + * FPGA 31.25 MHz 32 *10^-9 0x800000(0x3FFFF/ns) + * + * These diagrams are only for the 10Gb link period + * + * +--------------+ +--------------+ + * | 32 | | 8 | 3 | 20 | + * *--------------+ +--------------+ + * ________ 43 bits ______/ fract + * + * The 43 bit SYSTIME overflows every + * 2^43 * 10^-9 / 3600 = 2.4 hours + */ +#define TXGBE_INCVAL_10GB 0xCCCCCC +#define TXGBE_INCVAL_1GB 0x800000 +#define TXGBE_INCVAL_100 0xA00000 +#define TXGBE_INCVAL_10 0xC7F380 +#define TXGBE_INCVAL_FPGA 0x800000 + +#define TXGBE_INCVAL_SHIFT_10GB 20 +#define TXGBE_INCVAL_SHIFT_1GB 18 +#define TXGBE_INCVAL_SHIFT_100 15 +#define TXGBE_INCVAL_SHIFT_10 12 +#define TXGBE_INCVAL_SHIFT_FPGA 17 + +#define TXGBE_OVERFLOW_PERIOD (HZ * 30) +#define TXGBE_PTP_TX_TIMEOUT (HZ) + +/** + * txgbe_ptp_read - read raw cycle counter (to be used by time counter) + * @hw_cc: the cyclecounter structure + * + * this function reads the cyclecounter registers and is called by the + * cyclecounter structure used to construct a ns counter from the + * arbitrary fixed point registers + */ +static u64 txgbe_ptp_read(const struct cyclecounter *hw_cc) +{ + struct txgbe_adapter *adapter = + container_of(hw_cc, struct txgbe_adapter, hw_cc); + struct txgbe_hw *hw = &adapter->hw; + u64 stamp = 0; + + stamp |= (u64)rd32(hw, TXGBE_TSC_1588_SYSTIML); + stamp |= (u64)rd32(hw, TXGBE_TSC_1588_SYSTIMH) << 32; + + return stamp; +} + +/** + * txgbe_ptp_convert_to_hwtstamp - convert register value to hw timestamp + * @adapter: private adapter structure + * @hwtstamp: stack timestamp structure + * @systim: unsigned 64bit system time value + * + * We need to convert the adapter's RX/TXSTMP registers into a hwtstamp value + * which can be used by the stack's ptp functions. + * + * The lock is used to protect consistency of the cyclecounter and the SYSTIME + * registers. However, it does not need to protect against the Rx or Tx + * timestamp registers, as there can't be a new timestamp until the old one is + * unlatched by reading. + * + * In addition to the timestamp in hardware, some controllers need a software + * overflow cyclecounter, and this function takes this into account as well. + **/ +static void txgbe_ptp_convert_to_hwtstamp(struct txgbe_adapter *adapter, + struct skb_shared_hwtstamps *hwtstamp, + u64 timestamp) +{ + unsigned long flags; + u64 ns; + + memset(hwtstamp, 0, sizeof(*hwtstamp)); + + spin_lock_irqsave(&adapter->tmreg_lock, flags); + ns = timecounter_cyc2time(&adapter->hw_tc, timestamp); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + + hwtstamp->hwtstamp = ns_to_ktime(ns); +} + +/** + * txgbe_ptp_adjfreq + * @ptp: the ptp clock structure + * @ppb: parts per billion adjustment from base + * + * adjust the frequency of the ptp cycle counter by the + * indicated ppb from the base frequency. + */ +static int txgbe_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb) +{ + struct txgbe_adapter *adapter = + container_of(ptp, struct txgbe_adapter, ptp_caps); + struct txgbe_hw *hw = &adapter->hw; + u64 freq, incval; + u32 diff; + int neg_adj = 0; + + if (ppb < 0) { + neg_adj = 1; + ppb = -ppb; + } + + smp_mb(); + incval = READ_ONCE(adapter->base_incval); + + freq = incval; + freq *= ppb; + diff = div_u64(freq, 1000000000ULL); + + incval = neg_adj ? (incval - diff) : (incval + diff); + + if (incval > TXGBE_TSC_1588_INC_IV(~0)) + e_dev_warn("PTP ppb adjusted SYSTIME rate overflowed!\n"); + wr32(hw, TXGBE_TSC_1588_INC, + TXGBE_TSC_1588_INC_IVP(incval, 2)); + + return 0; +} + + +/** + * txgbe_ptp_adjtime + * @ptp: the ptp clock structure + * @delta: offset to adjust the cycle counter by ns + * + * adjust the timer by resetting the timecounter structure. + */ +static int txgbe_ptp_adjtime(struct ptp_clock_info *ptp, + s64 delta) +{ + struct txgbe_adapter *adapter = + container_of(ptp, struct txgbe_adapter, ptp_caps); + unsigned long flags; + + spin_lock_irqsave(&adapter->tmreg_lock, flags); + timecounter_adjtime(&adapter->hw_tc, delta); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + + return 0; +} + +/** + * txgbe_ptp_gettime64 + * @ptp: the ptp clock structure + * @ts: timespec64 structure to hold the current time value + * + * read the timecounter and return the correct value on ns, + * after converting it into a struct timespec64. + */ +static int txgbe_ptp_gettime64(struct ptp_clock_info *ptp, + struct timespec64 *ts) +{ + struct txgbe_adapter *adapter = + container_of(ptp, struct txgbe_adapter, ptp_caps); + unsigned long flags; + u64 ns; + + spin_lock_irqsave(&adapter->tmreg_lock, flags); + ns = timecounter_read(&adapter->hw_tc); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + + *ts = ns_to_timespec64(ns); + + return 0; +} + +/** + * txgbe_ptp_settime64 + * @ptp: the ptp clock structure + * @ts: the timespec64 containing the new time for the cycle counter + * + * reset the timecounter to use a new base value instead of the kernel + * wall timer value. + */ +static int txgbe_ptp_settime64(struct ptp_clock_info *ptp, + const struct timespec64 *ts) +{ + struct txgbe_adapter *adapter = + container_of(ptp, struct txgbe_adapter, ptp_caps); + u64 ns; + unsigned long flags; + + ns = timespec64_to_ns(ts); + + /* reset the timecounter */ + spin_lock_irqsave(&adapter->tmreg_lock, flags); + timecounter_init(&adapter->hw_tc, &adapter->hw_cc, ns); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + + return 0; +} + +/** + * txgbe_ptp_feature_enable + * @ptp: the ptp clock structure + * @rq: the requested feature to change + * @on: whether to enable or disable the feature + * + * enable (or disable) ancillary features of the phc subsystem. + * our driver only supports the PPS feature on the X540 + */ +static int txgbe_ptp_feature_enable(struct ptp_clock_info *ptp, + struct ptp_clock_request *rq, int on) +{ + return -ENOTSUPP; +} + +/** + * txgbe_ptp_check_pps_event + * @adapter: the private adapter structure + * @eicr: the interrupt cause register value + * + * This function is called by the interrupt routine when checking for + * interrupts. It will check and handle a pps event. + */ +void txgbe_ptp_check_pps_event(struct txgbe_adapter *adapter) +{ + struct ptp_clock_event event; + + event.type = PTP_CLOCK_PPS; + + /* this check is necessary in case the interrupt was enabled via some + * alternative means (ex. debug_fs). Better to check here than + * everywhere that calls this function. + */ + if (!adapter->ptp_clock) + return; + + /* we don't config PPS on SDP yet, so just return. + * ptp_clock_event(adapter->ptp_clock, &event); + */ +} + +/** + * txgbe_ptp_overflow_check - watchdog task to detect SYSTIME overflow + * @adapter: private adapter struct + * + * this watchdog task periodically reads the timecounter + * in order to prevent missing when the system time registers wrap + * around. This needs to be run approximately twice a minute for the fastest + * overflowing hardware. We run it for all hardware since it shouldn't have a + * large impact. + */ +void txgbe_ptp_overflow_check(struct txgbe_adapter *adapter) +{ + bool timeout = time_is_before_jiffies(adapter->last_overflow_check + + TXGBE_OVERFLOW_PERIOD); + struct timespec64 ts; + + if (timeout) { + txgbe_ptp_gettime64(&adapter->ptp_caps, &ts); + adapter->last_overflow_check = jiffies; + } +} + +/** + * txgbe_ptp_rx_hang - detect error case when Rx timestamp registers latched + * @adapter: private network adapter structure + * + * this watchdog task is scheduled to detect error case where hardware has + * dropped an Rx packet that was timestamped when the ring is full. The + * particular error is rare but leaves the device in a state unable to timestamp + * any future packets. + */ +void txgbe_ptp_rx_hang(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct txgbe_ring *rx_ring; + u32 tsyncrxctl = rd32(hw, TXGBE_PSR_1588_CTL); + unsigned long rx_event; + int n; + + /* if we don't have a valid timestamp in the registers, just update the + * timeout counter and exit + */ + if (!(tsyncrxctl & TXGBE_PSR_1588_CTL_VALID)) { + adapter->last_rx_ptp_check = jiffies; + return; + } + + /* determine the most recent watchdog or rx_timestamp event */ + rx_event = adapter->last_rx_ptp_check; + for (n = 0; n < adapter->num_rx_queues; n++) { + rx_ring = adapter->rx_ring[n]; + if (time_after(rx_ring->last_rx_timestamp, rx_event)) + rx_event = rx_ring->last_rx_timestamp; + } + + /* only need to read the high RXSTMP register to clear the lock */ + if (time_is_before_jiffies(rx_event + 5*HZ)) { + rd32(hw, TXGBE_PSR_1588_STMPH); + adapter->last_rx_ptp_check = jiffies; + + adapter->rx_hwtstamp_cleared++; + e_warn(drv, "clearing RX Timestamp hang"); + } +} + +/** + * txgbe_ptp_clear_tx_timestamp - utility function to clear Tx timestamp state + * @adapter: the private adapter structure + * + * This function should be called whenever the state related to a Tx timestamp + * needs to be cleared. This helps ensure that all related bits are reset for + * the next Tx timestamp event. + */ +static void txgbe_ptp_clear_tx_timestamp(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + + rd32(hw, TXGBE_TSC_1588_STMPH); + if (adapter->ptp_tx_skb) { + dev_kfree_skb_any(adapter->ptp_tx_skb); + adapter->ptp_tx_skb = NULL; + } + clear_bit_unlock(__TXGBE_PTP_TX_IN_PROGRESS, &adapter->state); +} + +/** + * txgbe_ptp_tx_hwtstamp - utility function which checks for TX time stamp + * @adapter: the private adapter struct + * + * if the timestamp is valid, we convert it into the timecounter ns + * value, then store that result into the shhwtstamps structure which + * is passed up the network stack + */ +static void txgbe_ptp_tx_hwtstamp(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct skb_shared_hwtstamps shhwtstamps; + u64 regval = 0; + + regval |= (u64)rd32(hw, TXGBE_TSC_1588_STMPL); + regval |= (u64)rd32(hw, TXGBE_TSC_1588_STMPH) << 32; + + txgbe_ptp_convert_to_hwtstamp(adapter, &shhwtstamps, regval); + skb_tstamp_tx(adapter->ptp_tx_skb, &shhwtstamps); + + txgbe_ptp_clear_tx_timestamp(adapter); +} + +/** + * txgbe_ptp_tx_hwtstamp_work + * @work: pointer to the work struct + * + * This work item polls TSYNCTXCTL valid bit to determine when a Tx hardware + * timestamp has been taken for the current skb. It is necesary, because the + * descriptor's "done" bit does not correlate with the timestamp event. + */ +static void txgbe_ptp_tx_hwtstamp_work(struct work_struct *work) +{ + struct txgbe_adapter *adapter = container_of(work, struct txgbe_adapter, + ptp_tx_work); + struct txgbe_hw *hw = &adapter->hw; + bool timeout = time_is_before_jiffies(adapter->ptp_tx_start + + TXGBE_PTP_TX_TIMEOUT); + u32 tsynctxctl; + + /* we have to have a valid skb to poll for a timestamp */ + if (!adapter->ptp_tx_skb) { + txgbe_ptp_clear_tx_timestamp(adapter); + return; + } + + /* stop polling once we have a valid timestamp */ + tsynctxctl = rd32(hw, TXGBE_TSC_1588_CTL); + if (tsynctxctl & TXGBE_TSC_1588_CTL_VALID) { + txgbe_ptp_tx_hwtstamp(adapter); + return; + } + + /* check timeout last in case timestamp event just occurred */ + if (timeout) { + txgbe_ptp_clear_tx_timestamp(adapter); + adapter->tx_hwtstamp_timeouts++; + e_warn(drv, "clearing Tx Timestamp hang"); + } else { + /* reschedule to keep checking until we timeout */ + schedule_work(&adapter->ptp_tx_work); + } +} + +/** + * txgbe_ptp_rx_rgtstamp - utility function which checks for RX time stamp + * @q_vector: structure containing interrupt and ring information + * @skb: particular skb to send timestamp with + * + * if the timestamp is valid, we convert it into the timecounter ns + * value, then store that result into the shhwtstamps structure which + * is passed up the network stack + */ +void txgbe_ptp_rx_hwtstamp(struct txgbe_adapter *adapter, struct sk_buff *skb) +{ + struct txgbe_hw *hw = &adapter->hw; + u64 regval = 0; + u32 tsyncrxctl; + + /* + * Read the tsyncrxctl register afterwards in order to prevent taking an + * I/O hit on every packet. + */ + tsyncrxctl = rd32(hw, TXGBE_PSR_1588_CTL); + if (!(tsyncrxctl & TXGBE_PSR_1588_CTL_VALID)) + return; + + regval |= (u64)rd32(hw, TXGBE_PSR_1588_STMPL); + regval |= (u64)rd32(hw, TXGBE_PSR_1588_STMPH) << 32; + + txgbe_ptp_convert_to_hwtstamp(adapter, skb_hwtstamps(skb), regval); +} + +/** + * txgbe_ptp_get_ts_config - get current hardware timestamping configuration + * @adapter: pointer to adapter structure + * @ifreq: ioctl data + * + * This function returns the current timestamping settings. Rather than + * attempt to deconstruct registers to fill in the values, simply keep a copy + * of the old settings around, and return a copy when requested. + */ +int txgbe_ptp_get_ts_config(struct txgbe_adapter *adapter, struct ifreq *ifr) +{ + struct hwtstamp_config *config = &adapter->tstamp_config; + + return copy_to_user(ifr->ifr_data, config, + sizeof(*config)) ? -EFAULT : 0; +} + +/** + * txgbe_ptp_set_timestamp_mode - setup the hardware for the requested mode + * @adapter: the private txgbe adapter structure + * @config: the hwtstamp configuration requested + * + * Outgoing time stamping can be enabled and disabled. Play nice and + * disable it when requested, although it shouldn't cause any overhead + * when no packet needs it. At most one packet in the queue may be + * marked for time stamping, otherwise it would be impossible to tell + * for sure to which packet the hardware time stamp belongs. + * + * Incoming time stamping has to be configured via the hardware + * filters. Not all combinations are supported, in particular event + * type has to be specified. Matching the kind of event packet is + * not supported, with the exception of "all V2 events regardless of + * level 2 or 4". + * + * Since hardware always timestamps Path delay packets when timestamping V2 + * packets, regardless of the type specified in the register, only use V2 + * Event mode. This more accurately tells the user what the hardware is going + * to do anyways. + * + * Note: this may modify the hwtstamp configuration towards a more general + * mode, if required to support the specifically requested mode. + */ +static int txgbe_ptp_set_timestamp_mode(struct txgbe_adapter *adapter, + struct hwtstamp_config *config) +{ + struct txgbe_hw *hw = &adapter->hw; + u32 tsync_tx_ctl = TXGBE_TSC_1588_CTL_ENABLED; + u32 tsync_rx_ctl = TXGBE_PSR_1588_CTL_ENABLED; + u32 tsync_rx_mtrl = PTP_EV_PORT << 16; + bool is_l2 = false; + u32 regval; + + /* reserved for future extensions */ + if (config->flags) + return -EINVAL; + + switch (config->tx_type) { + case HWTSTAMP_TX_OFF: + tsync_tx_ctl = 0; + case HWTSTAMP_TX_ON: + break; + default: + return -ERANGE; + } + + switch (config->rx_filter) { + case HWTSTAMP_FILTER_NONE: + tsync_rx_ctl = 0; + tsync_rx_mtrl = 0; + adapter->flags &= ~(TXGBE_FLAG_RX_HWTSTAMP_ENABLED | + TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + break; + case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: + tsync_rx_ctl |= TXGBE_PSR_1588_CTL_TYPE_L4_V1; + tsync_rx_mtrl |= TXGBE_PSR_1588_MSGTYPE_V1_SYNC_MSG; + adapter->flags |= (TXGBE_FLAG_RX_HWTSTAMP_ENABLED | + TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + break; + case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: + tsync_rx_ctl |= TXGBE_PSR_1588_CTL_TYPE_L4_V1; + tsync_rx_mtrl |= TXGBE_PSR_1588_MSGTYPE_V1_DELAY_REQ_MSG; + adapter->flags |= (TXGBE_FLAG_RX_HWTSTAMP_ENABLED | + TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + break; + case HWTSTAMP_FILTER_PTP_V2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + tsync_rx_ctl |= TXGBE_PSR_1588_CTL_TYPE_EVENT_V2; + is_l2 = true; + config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; + adapter->flags |= (TXGBE_FLAG_RX_HWTSTAMP_ENABLED | + TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + break; + case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: + case HWTSTAMP_FILTER_ALL: + default: + /* register RXMTRL must be set in order to do V1 packets, + * therefore it is not possible to time stamp both V1 Sync and + * Delay_Req messages unless hardware supports timestamping all + * packets => return error + */ + adapter->flags &= ~(TXGBE_FLAG_RX_HWTSTAMP_ENABLED | + TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + config->rx_filter = HWTSTAMP_FILTER_NONE; + return -ERANGE; + } + + /* define ethertype filter for timestamping L2 packets */ + if (is_l2) + wr32(hw, + TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_1588), + (TXGBE_PSR_ETYPE_SWC_FILTER_EN | /* enable filter */ + TXGBE_PSR_ETYPE_SWC_1588 | /* enable timestamping */ + ETH_P_1588)); /* 1588 eth protocol type */ + else + wr32(hw, + TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_1588), + 0); + + /* enable/disable TX */ + regval = rd32(hw, TXGBE_TSC_1588_CTL); + regval &= ~TXGBE_TSC_1588_CTL_ENABLED; + regval |= tsync_tx_ctl; + wr32(hw, TXGBE_TSC_1588_CTL, regval); + + /* enable/disable RX */ + regval = rd32(hw, TXGBE_PSR_1588_CTL); + regval &= ~(TXGBE_PSR_1588_CTL_ENABLED | TXGBE_PSR_1588_CTL_TYPE_MASK); + regval |= tsync_rx_ctl; + wr32(hw, TXGBE_PSR_1588_CTL, regval); + + /* define which PTP packets are time stamped */ + wr32(hw, TXGBE_PSR_1588_MSGTYPE, tsync_rx_mtrl); + + TXGBE_WRITE_FLUSH(hw); + + /* clear TX/RX timestamp state, just to be sure */ + txgbe_ptp_clear_tx_timestamp(adapter); + rd32(hw, TXGBE_PSR_1588_STMPH); + + return 0; +} + +/** + * txgbe_ptp_set_ts_config - user entry point for timestamp mode + * @adapter: pointer to adapter struct + * @ifreq: ioctl data + * + * Set hardware to requested mode. If unsupported, return an error with no + * changes. Otherwise, store the mode for future reference. + */ +int txgbe_ptp_set_ts_config(struct txgbe_adapter *adapter, struct ifreq *ifr) +{ + struct hwtstamp_config config; + int err; + + if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) + return -EFAULT; + + err = txgbe_ptp_set_timestamp_mode(adapter, &config); + if (err) + return err; + + /* save these settings for future reference */ + memcpy(&adapter->tstamp_config, &config, + sizeof(adapter->tstamp_config)); + + return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? + -EFAULT : 0; +} + +static void txgbe_ptp_link_speed_adjust(struct txgbe_adapter *adapter, + u32 *shift, u32 *incval) +{ + /** + * Scale the NIC cycle counter by a large factor so that + * relatively small corrections to the frequency can be added + * or subtracted. The drawbacks of a large factor include + * (a) the clock register overflows more quickly, (b) the cycle + * counter structure must be able to convert the systime value + * to nanoseconds using only a multiplier and a right-shift, + * and (c) the value must fit within the timinca register space + * => math based on internal DMA clock rate and available bits + * + * Note that when there is no link, internal DMA clock is same as when + * link speed is 10Gb. Set the registers correctly even when link is + * down to preserve the clock setting + */ + switch (adapter->link_speed) { + case TXGBE_LINK_SPEED_10_FULL: + *shift = TXGBE_INCVAL_SHIFT_10; + *incval = TXGBE_INCVAL_10; + break; + case TXGBE_LINK_SPEED_100_FULL: + *shift = TXGBE_INCVAL_SHIFT_100; + *incval = TXGBE_INCVAL_100; + break; + case TXGBE_LINK_SPEED_1GB_FULL: + *shift = TXGBE_INCVAL_SHIFT_FPGA; + *incval = TXGBE_INCVAL_FPGA; + break; + case TXGBE_LINK_SPEED_10GB_FULL: + default: /* TXGBE_LINK_SPEED_10GB_FULL */ + *shift = TXGBE_INCVAL_SHIFT_10GB; + *incval = TXGBE_INCVAL_10GB; + break; + } + + return; +} + +/** + * txgbe_ptp_start_cyclecounter - create the cycle counter from hw + * @adapter: pointer to the adapter structure + * + * This function should be called to set the proper values for the TIMINCA + * register and tell the cyclecounter structure what the tick rate of SYSTIME + * is. It does not directly modify SYSTIME registers or the timecounter + * structure. It should be called whenever a new TIMINCA value is necessary, + * such as during initialization or when the link speed changes. + */ +void txgbe_ptp_start_cyclecounter(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + unsigned long flags; + struct cyclecounter cc; + u32 incval = 0; + + /* For some of the boards below this mask is technically incorrect. + * The timestamp mask overflows at approximately 61bits. However the + * particular hardware does not overflow on an even bitmask value. + * Instead, it overflows due to conversion of upper 32bits billions of + * cycles. Timecounters are not really intended for this purpose so + * they do not properly function if the overflow point isn't 2^N-1. + * However, the actual SYSTIME values in question take ~138 years to + * overflow. In practice this means they won't actually overflow. A + * proper fix to this problem would require modification of the + * timecounter delta calculations. + */ + cc.mask = CLOCKSOURCE_MASK(64); + cc.mult = 1; + cc.shift = 0; + + cc.read = txgbe_ptp_read; + txgbe_ptp_link_speed_adjust(adapter, &cc.shift, &incval); + wr32(hw, TXGBE_TSC_1588_INC, + TXGBE_TSC_1588_INC_IVP(incval, 2)); + + /* update the base incval used to calculate frequency adjustment */ + WRITE_ONCE(adapter->base_incval, incval); + smp_mb(); + + /* need lock to prevent incorrect read while modifying cyclecounter */ + spin_lock_irqsave(&adapter->tmreg_lock, flags); + memcpy(&adapter->hw_cc, &cc, sizeof(adapter->hw_cc)); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); +} + +/** + * txgbe_ptp_reset + * @adapter: the txgbe private board structure + * + * When the MAC resets, all of the hardware configuration for timesync is + * reset. This function should be called to re-enable the device for PTP, + * using the last known settings. However, we do lose the current clock time, + * so we fallback to resetting it based on the kernel's realtime clock. + * + * This function will maintain the hwtstamp_config settings, and it retriggers + * the SDP output if it's enabled. + */ +void txgbe_ptp_reset(struct txgbe_adapter *adapter) +{ + unsigned long flags; + + /* reset the hardware timestamping mode */ + txgbe_ptp_set_timestamp_mode(adapter, &adapter->tstamp_config); + txgbe_ptp_start_cyclecounter(adapter); + + spin_lock_irqsave(&adapter->tmreg_lock, flags); + timecounter_init(&adapter->hw_tc, &adapter->hw_cc, + ktime_to_ns(ktime_get_real())); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + + adapter->last_overflow_check = jiffies; +} + +/** + * txgbe_ptp_create_clock + * @adapter: the txgbe private adapter structure + * + * This functino performs setup of the user entry point function table and + * initalizes the PTP clock device used by userspace to access the clock-like + * features of the PTP core. It will be called by txgbe_ptp_init, and may + * re-use a previously initialized clock (such as during a suspend/resume + * cycle). + */ + +static long txgbe_ptp_create_clock(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + long err; + + /* do nothing if we already have a clock device */ + if (!IS_ERR_OR_NULL(adapter->ptp_clock)) + return 0; + + snprintf(adapter->ptp_caps.name, sizeof(adapter->ptp_caps.name), + "%s", netdev->name); + adapter->ptp_caps.owner = THIS_MODULE; + adapter->ptp_caps.max_adj = 250000000; /* 10^-9s */ + adapter->ptp_caps.n_alarm = 0; + adapter->ptp_caps.n_ext_ts = 0; + adapter->ptp_caps.n_per_out = 0; + adapter->ptp_caps.pps = 0; + adapter->ptp_caps.adjfreq = txgbe_ptp_adjfreq; + adapter->ptp_caps.adjtime = txgbe_ptp_adjtime; + adapter->ptp_caps.gettime64 = txgbe_ptp_gettime64; + adapter->ptp_caps.settime64 = txgbe_ptp_settime64; + adapter->ptp_caps.enable = txgbe_ptp_feature_enable; + + adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps, + pci_dev_to_dev(adapter->pdev)); + if (IS_ERR(adapter->ptp_clock)) { + err = PTR_ERR(adapter->ptp_clock); + adapter->ptp_clock = NULL; + e_dev_err("ptp_clock_register failed\n"); + return err; + } else + e_dev_info("registered PHC device on %s\n", netdev->name); + + /* Set the default timestamp mode to disabled here. We do this in + * create_clock instead of initialization, because we don't want to + * override the previous settings during a suspend/resume cycle. + */ + adapter->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; + adapter->tstamp_config.tx_type = HWTSTAMP_TX_OFF; + + return 0; +} + +/** + * txgbe_ptp_init + * @adapter: the txgbe private adapter structure + * + * This function performs the required steps for enabling ptp + * support. If ptp support has already been loaded it simply calls the + * cyclecounter init routine and exits. + */ +void txgbe_ptp_init(struct txgbe_adapter *adapter) +{ + /* initialize the spin lock first, since the user might call the clock + * functions any time after we've initialized the ptp clock device. + */ + spin_lock_init(&adapter->tmreg_lock); + + /* obtain a ptp clock device, or re-use an existing device */ + if (txgbe_ptp_create_clock(adapter)) + return; + + /* we have a clock, so we can intialize work for timestamps now */ + INIT_WORK(&adapter->ptp_tx_work, txgbe_ptp_tx_hwtstamp_work); + + /* reset the ptp related hardware bits */ + txgbe_ptp_reset(adapter); + + /* enter the TXGBE_PTP_RUNNING state */ + set_bit(__TXGBE_PTP_RUNNING, &adapter->state); + + return; +} + +/** + * txgbe_ptp_suspend - stop ptp work items + * @adapter: pointer to adapter struct + * + * This function suspends ptp activity, and prevents more work from being + * generated, but does not destroy the clock device. + */ +void txgbe_ptp_suspend(struct txgbe_adapter *adapter) +{ + /* leave the TXGBE_PTP_RUNNING STATE */ + if (!test_and_clear_bit(__TXGBE_PTP_RUNNING, &adapter->state)) + return; + + adapter->flags2 &= ~TXGBE_FLAG2_PTP_PPS_ENABLED; + + cancel_work_sync(&adapter->ptp_tx_work); + txgbe_ptp_clear_tx_timestamp(adapter); +} + +/** + * txgbe_ptp_stop - destroy the ptp_clock device + * @adapter: pointer to adapter struct + * + * Completely destroy the ptp_clock device, and disable all PTP related + * features. Intended to be run when the device is being closed. + */ +void txgbe_ptp_stop(struct txgbe_adapter *adapter) +{ + /* first, suspend ptp activity */ + txgbe_ptp_suspend(adapter); + + /* now destroy the ptp clock device */ + if (adapter->ptp_clock) { + ptp_clock_unregister(adapter->ptp_clock); + adapter->ptp_clock = NULL; + e_dev_info("removed PHC on %s\n", + adapter->netdev->name); + } +} diff --git a/drivers/net/ethernet/netswift/txgbe/txgbe_type.h b/drivers/net/ethernet/netswift/txgbe/txgbe_type.h new file mode 100644 index 0000000000000..2f62819a848ad --- /dev/null +++ b/drivers/net/ethernet/netswift/txgbe/txgbe_type.h @@ -0,0 +1,3213 @@ +/* + * WangXun 10 Gigabit PCI Express Linux driver + * Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * based on ixgbe_type.h, Copyright(c) 1999 - 2017 Intel Corporation. + * Contact Information: + * Linux NICS linux.nics@intel.com + * e1000-devel Mailing List e1000-devel@lists.sourceforge.net + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + */ + + +#ifndef _TXGBE_TYPE_H_ +#define _TXGBE_TYPE_H_ + +#include <linux/types.h> +#include <linux/mdio.h> +#include <linux/netdevice.h> + +/* + * The following is a brief description of the error categories used by the + * ERROR_REPORT* macros. + * + * - TXGBE_ERROR_INVALID_STATE + * This category is for errors which represent a serious failure state that is + * unexpected, and could be potentially harmful to device operation. It should + * not be used for errors relating to issues that can be worked around or + * ignored. + * + * - TXGBE_ERROR_POLLING + * This category is for errors related to polling/timeout issues and should be + * used in any case where the timeout occured, or a failure to obtain a lock, or + * failure to receive data within the time limit. + * + * - TXGBE_ERROR_CAUTION + * This category should be used for reporting issues that may be the cause of + * other errors, such as temperature warnings. It should indicate an event which + * could be serious, but hasn't necessarily caused problems yet. + * + * - TXGBE_ERROR_SOFTWARE + * This category is intended for errors due to software state preventing + * something. The category is not intended for errors due to bad arguments, or + * due to unsupported features. It should be used when a state occurs which + * prevents action but is not a serious issue. + * + * - TXGBE_ERROR_ARGUMENT + * This category is for when a bad or invalid argument is passed. It should be + * used whenever a function is called and error checking has detected the + * argument is wrong or incorrect. + * + * - TXGBE_ERROR_UNSUPPORTED + * This category is for errors which are due to unsupported circumstances or + * configuration issues. It should not be used when the issue is due to an + * invalid argument, but for when something has occurred that is unsupported + * (Ex: Flow control autonegotiation or an unsupported SFP+ module.) + */ + +#include "txgbe_mtd.h" + +/* Little Endian defines */ +#ifndef __le16 +#define __le16 u16 +#endif +#ifndef __le32 +#define __le32 u32 +#endif +#ifndef __le64 +#define __le64 u64 + +#endif +#ifndef __be16 +/* Big Endian defines */ +#define __be16 u16 +#define __be32 u32 +#define __be64 u64 + +#endif + +/************ txgbe_register.h ************/ +/* Vendor ID */ +#ifndef PCI_VENDOR_ID_TRUSTNETIC +#define PCI_VENDOR_ID_TRUSTNETIC 0x8088 +#endif + +/* Device IDs */ +#define TXGBE_DEV_ID_SP1000 0x1001 +#define TXGBE_DEV_ID_WX1820 0x2001 + +/* Subsystem IDs */ +/* SFP */ +#define TXGBE_ID_SP1000_SFP 0x0000 +#define TXGBE_ID_WX1820_SFP 0x2000 +#define TXGBE_ID_SFP 0x00 + +/* copper */ +#define TXGBE_ID_SP1000_XAUI 0x1010 +#define TXGBE_ID_WX1820_XAUI 0x2010 +#define TXGBE_ID_XAUI 0x10 +#define TXGBE_ID_SP1000_SGMII 0x1020 +#define TXGBE_ID_WX1820_SGMII 0x2020 +#define TXGBE_ID_SGMII 0x20 +/* backplane */ +#define TXGBE_ID_SP1000_KR_KX_KX4 0x1030 +#define TXGBE_ID_WX1820_KR_KX_KX4 0x2030 +#define TXGBE_ID_KR_KX_KX4 0x30 +/* MAC Interface */ +#define TXGBE_ID_SP1000_MAC_XAUI 0x1040 +#define TXGBE_ID_WX1820_MAC_XAUI 0x2040 +#define TXGBE_ID_MAC_XAUI 0x40 +#define TXGBE_ID_SP1000_MAC_SGMII 0x1060 +#define TXGBE_ID_WX1820_MAC_SGMII 0x2060 +#define TXGBE_ID_MAC_SGMII 0x60 + +#define TXGBE_NCSI_SUP 0x8000 +#define TXGBE_NCSI_MASK 0x8000 +#define TXGBE_WOL_SUP 0x4000 +#define TXGBE_WOL_MASK 0x4000 + + +/* Combined interface*/ +#define TXGBE_ID_SFI_XAUI 0x50 + +/* Revision ID */ +#define TXGBE_SP_MPW 1 + +/* MDIO Manageable Devices (MMDs). */ +#define TXGBE_MDIO_PMA_PMD_DEV_TYPE 0x1 /* PMA and PMD */ +#define TXGBE_MDIO_PCS_DEV_TYPE 0x3 /* Physical Coding Sublayer*/ +#define TXGBE_MDIO_PHY_XS_DEV_TYPE 0x4 /* PHY Extender Sublayer */ +#define TXGBE_MDIO_AUTO_NEG_DEV_TYPE 0x7 /* Auto-Negotiation */ +#define TXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE 0x1E /* Vendor specific 1 */ + +/* phy register definitions */ +/* VENDOR_SPECIFIC_1_DEV regs */ +#define TXGBE_MDIO_VENDOR_SPECIFIC_1_STATUS 0x1 /* VS1 Status Reg */ +#define TXGBE_MDIO_VENDOR_SPECIFIC_1_LINK_STATUS 0x0008 /* 1 = Link Up */ +#define TXGBE_MDIO_VENDOR_SPECIFIC_1_SPEED_STATUS 0x0010 /* 0-10G, 1-1G */ + +/* AUTO_NEG_DEV regs */ +#define TXGBE_MDIO_AUTO_NEG_CONTROL 0x0 /* AUTO_NEG Control Reg */ +#define TXGBE_MDIO_AUTO_NEG_ADVT 0x10 /* AUTO_NEG Advt Reg */ +#define TXGBE_MDIO_AUTO_NEG_LP 0x13 /* AUTO_NEG LP Reg */ +#define TXGBE_MDIO_AUTO_NEG_LP_STATUS 0xE820 /* AUTO NEG RX LP Status + * Reg */ +#define TXGBE_MII_10GBASE_T_AUTONEG_CTRL_REG 0x20 /* 10G Control Reg */ +#define TXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG 0xC400 /* 1G Provisioning 1 */ +#define TXGBE_MII_AUTONEG_XNP_TX_REG 0x17 /* 1G XNP Transmit */ +#define TXGBE_MII_AUTONEG_ADVERTISE_REG 0x10 /* 100M Advertisement */ + + +#define TXGBE_MDIO_AUTO_NEG_10GBASE_EEE_ADVT 0x8 +#define TXGBE_MDIO_AUTO_NEG_1000BASE_EEE_ADVT 0x4 +#define TXGBE_MDIO_AUTO_NEG_100BASE_EEE_ADVT 0x2 +#define TXGBE_MDIO_AUTO_NEG_LP_1000BASE_CAP 0x8000 +#define TXGBE_MDIO_AUTO_NEG_LP_10GBASE_CAP 0x0800 +#define TXGBE_MDIO_AUTO_NEG_10GBASET_STAT 0x0021 + +#define TXGBE_MII_10GBASE_T_ADVERTISE 0x1000 /* full duplex, bit:12*/ +#define TXGBE_MII_1GBASE_T_ADVERTISE_XNP_TX 0x4000 /* full duplex, bit:14*/ +#define TXGBE_MII_1GBASE_T_ADVERTISE 0x8000 /* full duplex, bit:15*/ +#define TXGBE_MII_100BASE_T_ADVERTISE 0x0100 /* full duplex, bit:8 */ +#define TXGBE_MII_100BASE_T_ADVERTISE_HALF 0x0080 /* half duplex, bit:7 */ +#define TXGBE_MII_RESTART 0x200 +#define TXGBE_MII_AUTONEG_COMPLETE 0x20 +#define TXGBE_MII_AUTONEG_LINK_UP 0x04 +#define TXGBE_MII_AUTONEG_REG 0x0 + +/* PHY_XS_DEV regs */ +#define TXGBE_MDIO_PHY_XS_CONTROL 0x0 /* PHY_XS Control Reg */ +#define TXGBE_MDIO_PHY_XS_RESET 0x8000 /* PHY_XS Reset */ + +/* Media-dependent registers. */ +#define TXGBE_MDIO_PHY_ID_HIGH 0x2 /* PHY ID High Reg*/ +#define TXGBE_MDIO_PHY_ID_LOW 0x3 /* PHY ID Low Reg*/ +#define TXGBE_MDIO_PHY_SPEED_ABILITY 0x4 /* Speed Ability Reg */ +#define TXGBE_MDIO_PHY_EXT_ABILITY 0xB /* Ext Ability Reg */ + +#define TXGBE_MDIO_PHY_SPEED_10G 0x0001 /* 10G capable */ +#define TXGBE_MDIO_PHY_SPEED_1G 0x0010 /* 1G capable */ +#define TXGBE_MDIO_PHY_SPEED_100M 0x0020 /* 100M capable */ +#define TXGBE_MDIO_PHY_SPEED_10M 0x0040 /* 10M capable */ + +#define TXGBE_MDIO_PHY_10GBASET_ABILITY 0x0004 /* 10GBaseT capable */ +#define TXGBE_MDIO_PHY_1000BASET_ABILITY 0x0020 /* 1000BaseT capable */ +#define TXGBE_MDIO_PHY_100BASETX_ABILITY 0x0080 /* 100BaseTX capable */ + +#define TXGBE_PHY_REVISION_MASK 0xFFFFFFF0U +#define TXGBE_MAX_PHY_ADDR 32 + +/* PHY IDs*/ +#define TN1010_PHY_ID 0x00A19410U +#define QT2022_PHY_ID 0x0043A400U +#define ATH_PHY_ID 0x03429050U +/* PHY FW revision */ +#define TNX_FW_REV 0xB +#define AQ_FW_REV 0x20 + +/* ETH PHY Registers */ +#define TXGBE_SR_XS_PCS_MMD_STATUS1 0x30001 +#define TXGBE_SR_PCS_CTL2 0x30007 +#define TXGBE_SR_PMA_MMD_CTL1 0x10000 +#define TXGBE_SR_MII_MMD_CTL 0x1F0000 +#define TXGBE_SR_MII_MMD_DIGI_CTL 0x1F8000 +#define TXGBE_SR_MII_MMD_AN_CTL 0x1F8001 +#define TXGBE_SR_MII_MMD_AN_ADV 0x1F0004 +#define TXGBE_SR_MII_MMD_AN_ADV_PAUSE(_v) ((0x3 & (_v)) << 7) +#define TXGBE_SR_MII_MMD_AN_ADV_PAUSE_ASM 0x80 +#define TXGBE_SR_MII_MMD_AN_ADV_PAUSE_SYM 0x100 +#define TXGBE_SR_MII_MMD_LP_BABL 0x1F0005 +#define TXGBE_SR_AN_MMD_CTL 0x70000 +#define TXGBE_SR_AN_MMD_ADV_REG1 0x70010 +#define TXGBE_SR_AN_MMD_ADV_REG1_PAUSE(_v) ((0x3 & (_v)) << 10) +#define TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM 0x400 +#define TXGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM 0x800 +#define TXGBE_SR_AN_MMD_ADV_REG2 0x70011 +#define TXGBE_SR_AN_MMD_LP_ABL1 0x70013 +#define TXGBE_VR_AN_KR_MODE_CL 0x78003 +#define TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1 0x38000 +#define TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS 0x38010 +#define TXGBE_PHY_MPLLA_CTL0 0x18071 +#define TXGBE_PHY_MPLLA_CTL3 0x18077 +#define TXGBE_PHY_MISC_CTL0 0x18090 +#define TXGBE_PHY_VCO_CAL_LD0 0x18092 +#define TXGBE_PHY_VCO_CAL_LD1 0x18093 +#define TXGBE_PHY_VCO_CAL_LD2 0x18094 +#define TXGBE_PHY_VCO_CAL_LD3 0x18095 +#define TXGBE_PHY_VCO_CAL_REF0 0x18096 +#define TXGBE_PHY_VCO_CAL_REF1 0x18097 +#define TXGBE_PHY_RX_AD_ACK 0x18098 +#define TXGBE_PHY_AFE_DFE_ENABLE 0x1805D +#define TXGBE_PHY_DFE_TAP_CTL0 0x1805E +#define TXGBE_PHY_RX_EQ_ATT_LVL0 0x18057 +#define TXGBE_PHY_RX_EQ_CTL0 0x18058 +#define TXGBE_PHY_RX_EQ_CTL 0x1805C +#define TXGBE_PHY_TX_EQ_CTL0 0x18036 +#define TXGBE_PHY_TX_EQ_CTL1 0x18037 +#define TXGBE_PHY_TX_RATE_CTL 0x18034 +#define TXGBE_PHY_RX_RATE_CTL 0x18054 +#define TXGBE_PHY_TX_GEN_CTL2 0x18032 +#define TXGBE_PHY_RX_GEN_CTL2 0x18052 +#define TXGBE_PHY_RX_GEN_CTL3 0x18053 +#define TXGBE_PHY_MPLLA_CTL2 0x18073 +#define TXGBE_PHY_RX_POWER_ST_CTL 0x18055 +#define TXGBE_PHY_TX_POWER_ST_CTL 0x18035 +#define TXGBE_PHY_TX_GENCTRL1 0x18031 + +#define TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_R 0x0 +#define TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X 0x1 +#define TXGBE_SR_PCS_CTL2_PCS_TYPE_SEL_MASK 0x3 +#define TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_1G 0x0 +#define TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_10G 0x2000 +#define TXGBE_SR_PMA_MMD_CTL1_SPEED_SEL_MASK 0x2000 +#define TXGBE_SR_PMA_MMD_CTL1_LB_EN 0x1 +#define TXGBE_SR_MII_MMD_CTL_AN_EN 0x1000 +#define TXGBE_SR_MII_MMD_CTL_RESTART_AN 0x0200 +#define TXGBE_SR_AN_MMD_CTL_RESTART_AN 0x0200 +#define TXGBE_SR_AN_MMD_CTL_ENABLE 0x1000 +#define TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KX4 0x40 +#define TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KX 0x20 +#define TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KR 0x80 +#define TXGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_MASK 0xFFFF +#define TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_ENABLE 0x1000 +#define TXGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST 0x8000 +#define TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_MASK 0x1C +#define TXGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_POWER_GOOD 0x10 + +#define TXGBE_PHY_MPLLA_CTL0_MULTIPLIER_1GBASEX_KX 32 +#define TXGBE_PHY_MPLLA_CTL0_MULTIPLIER_10GBASER_KR 33 +#define TXGBE_PHY_MPLLA_CTL0_MULTIPLIER_OTHER 40 +#define TXGBE_PHY_MPLLA_CTL0_MULTIPLIER_MASK 0xFF +#define TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_1GBASEX_KX 0x56 +#define TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_10GBASER_KR 0x7B +#define TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_OTHER 0x56 +#define TXGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_MASK 0x7FF +#define TXGBE_PHY_MISC_CTL0_TX2RX_LB_EN_0 0x1 +#define TXGBE_PHY_MISC_CTL0_TX2RX_LB_EN_3_1 0xE +#define TXGBE_PHY_MISC_CTL0_RX_VREF_CTRL 0x1F00 +#define TXGBE_PHY_VCO_CAL_LD0_1GBASEX_KX 1344 +#define TXGBE_PHY_VCO_CAL_LD0_10GBASER_KR 1353 +#define TXGBE_PHY_VCO_CAL_LD0_OTHER 1360 +#define TXGBE_PHY_VCO_CAL_LD0_MASK 0x1000 +#define TXGBE_PHY_VCO_CAL_REF0_LD0_1GBASEX_KX 42 +#define TXGBE_PHY_VCO_CAL_REF0_LD0_10GBASER_KR 41 +#define TXGBE_PHY_VCO_CAL_REF0_LD0_OTHER 34 +#define TXGBE_PHY_VCO_CAL_REF0_LD0_MASK 0x3F +#define TXGBE_PHY_AFE_DFE_ENABLE_DFE_EN0 0x10 +#define TXGBE_PHY_AFE_DFE_ENABLE_AFE_EN0 0x1 +#define TXGBE_PHY_AFE_DFE_ENABLE_MASK 0xFF +#define TXGBE_PHY_RX_EQ_CTL_CONT_ADAPT0 0x1 +#define TXGBE_PHY_RX_EQ_CTL_CONT_ADAPT_MASK 0xF +#define TXGBE_PHY_TX_RATE_CTL_TX0_RATE_10GBASER_KR 0x0 +#define TXGBE_PHY_TX_RATE_CTL_TX0_RATE_RXAUI 0x1 +#define TXGBE_PHY_TX_RATE_CTL_TX0_RATE_1GBASEX_KX 0x3 +#define TXGBE_PHY_TX_RATE_CTL_TX0_RATE_OTHER 0x2 +#define TXGBE_PHY_TX_RATE_CTL_TX1_RATE_OTHER 0x20 +#define TXGBE_PHY_TX_RATE_CTL_TX2_RATE_OTHER 0x200 +#define TXGBE_PHY_TX_RATE_CTL_TX3_RATE_OTHER 0x2000 +#define TXGBE_PHY_TX_RATE_CTL_TX0_RATE_MASK 0x7 +#define TXGBE_PHY_TX_RATE_CTL_TX1_RATE_MASK 0x70 +#define TXGBE_PHY_TX_RATE_CTL_TX2_RATE_MASK 0x700 +#define TXGBE_PHY_TX_RATE_CTL_TX3_RATE_MASK 0x7000 +#define TXGBE_PHY_RX_RATE_CTL_RX0_RATE_10GBASER_KR 0x0 +#define TXGBE_PHY_RX_RATE_CTL_RX0_RATE_RXAUI 0x1 +#define TXGBE_PHY_RX_RATE_CTL_RX0_RATE_1GBASEX_KX 0x3 +#define TXGBE_PHY_RX_RATE_CTL_RX0_RATE_OTHER 0x2 +#define TXGBE_PHY_RX_RATE_CTL_RX1_RATE_OTHER 0x20 +#define TXGBE_PHY_RX_RATE_CTL_RX2_RATE_OTHER 0x200 +#define TXGBE_PHY_RX_RATE_CTL_RX3_RATE_OTHER 0x2000 +#define TXGBE_PHY_RX_RATE_CTL_RX0_RATE_MASK 0x7 +#define TXGBE_PHY_RX_RATE_CTL_RX1_RATE_MASK 0x70 +#define TXGBE_PHY_RX_RATE_CTL_RX2_RATE_MASK 0x700 +#define TXGBE_PHY_RX_RATE_CTL_RX3_RATE_MASK 0x7000 +#define TXGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_10GBASER_KR 0x200 +#define TXGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_10GBASER_KR_RXAUI 0x300 +#define TXGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_OTHER 0x100 +#define TXGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_MASK 0x300 +#define TXGBE_PHY_TX_GEN_CTL2_TX1_WIDTH_OTHER 0x400 +#define TXGBE_PHY_TX_GEN_CTL2_TX1_WIDTH_MASK 0xC00 +#define TXGBE_PHY_TX_GEN_CTL2_TX2_WIDTH_OTHER 0x1000 +#define TXGBE_PHY_TX_GEN_CTL2_TX2_WIDTH_MASK 0x3000 +#define TXGBE_PHY_TX_GEN_CTL2_TX3_WIDTH_OTHER 0x4000 +#define TXGBE_PHY_TX_GEN_CTL2_TX3_WIDTH_MASK 0xC000 +#define TXGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_10GBASER_KR 0x200 +#define TXGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_10GBASER_KR_RXAUI 0x300 +#define TXGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_OTHER 0x100 +#define TXGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_MASK 0x300 +#define TXGBE_PHY_RX_GEN_CTL2_RX1_WIDTH_OTHER 0x400 +#define TXGBE_PHY_RX_GEN_CTL2_RX1_WIDTH_MASK 0xC00 +#define TXGBE_PHY_RX_GEN_CTL2_RX2_WIDTH_OTHER 0x1000 +#define TXGBE_PHY_RX_GEN_CTL2_RX2_WIDTH_MASK 0x3000 +#define TXGBE_PHY_RX_GEN_CTL2_RX3_WIDTH_OTHER 0x4000 +#define TXGBE_PHY_RX_GEN_CTL2_RX3_WIDTH_MASK 0xC000 + +#define TXGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_8 0x100 +#define TXGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_10 0x200 +#define TXGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_16P5 0x400 +#define TXGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_MASK 0x700 + +#define TXGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME 100 +#define TXGBE_PHY_INIT_DONE_POLLING_TIME 100 + +/**************** Global Registers ****************************/ +/* chip control Registers */ +#define TXGBE_MIS_RST 0x1000C +#define TXGBE_MIS_PWR 0x10000 +#define TXGBE_MIS_CTL 0x10004 +#define TXGBE_MIS_PF_SM 0x10008 +#define TXGBE_MIS_ST 0x10028 +#define TXGBE_MIS_SWSM 0x1002C +#define TXGBE_MIS_RST_ST 0x10030 + +#define TXGBE_MIS_RST_SW_RST 0x00000001U +#define TXGBE_MIS_RST_LAN0_RST 0x00000002U +#define TXGBE_MIS_RST_LAN1_RST 0x00000004U +#define TXGBE_MIS_RST_LAN0_CHG_ETH_MODE 0x20000000U +#define TXGBE_MIS_RST_LAN1_CHG_ETH_MODE 0x40000000U +#define TXGBE_MIS_RST_GLOBAL_RST 0x80000000U +#define TXGBE_MIS_RST_MASK (TXGBE_MIS_RST_SW_RST | \ + TXGBE_MIS_RST_LAN0_RST | \ + TXGBE_MIS_RST_LAN1_RST) +#define TXGBE_MIS_PWR_LAN_ID(_r) ((0xC0000000U & (_r)) >> 30) +#define TXGBE_MIS_PWR_LAN_ID_0 (1) +#define TXGBE_MIS_PWR_LAN_ID_1 (2) +#define TXGBE_MIS_PWR_LAN_ID_A (3) +#define TXGBE_MIS_ST_MNG_INIT_DN 0x00000001U +#define TXGBE_MIS_ST_MNG_VETO 0x00000100U +#define TXGBE_MIS_ST_LAN0_ECC 0x00010000U +#define TXGBE_MIS_ST_LAN1_ECC 0x00020000U +#define TXGBE_MIS_ST_MNG_ECC 0x00040000U +#define TXGBE_MIS_ST_PCORE_ECC 0x00080000U +#define TXGBE_MIS_ST_PCIWRP_ECC 0x00100000U +#define TXGBE_MIS_SWSM_SMBI 1 +#define TXGBE_MIS_RST_ST_DEV_RST_ST_DONE 0x00000000U +#define TXGBE_MIS_RST_ST_DEV_RST_ST_REQ 0x00080000U +#define TXGBE_MIS_RST_ST_DEV_RST_ST_INPROGRESS 0x00100000U +#define TXGBE_MIS_RST_ST_DEV_RST_ST_MASK 0x00180000U +#define TXGBE_MIS_RST_ST_DEV_RST_TYPE_MASK 0x00070000U +#define TXGBE_MIS_RST_ST_DEV_RST_TYPE_SHIFT 16 +#define TXGBE_MIS_RST_ST_DEV_RST_TYPE_SW_RST 0x3 +#define TXGBE_MIS_RST_ST_DEV_RST_TYPE_GLOBAL_RST 0x5 +#define TXGBE_MIS_RST_ST_RST_INIT 0x0000FF00U +#define TXGBE_MIS_RST_ST_RST_INI_SHIFT 8 +#define TXGBE_MIS_RST_ST_RST_TIM 0x000000FFU +#define TXGBE_MIS_PF_SM_SM 1 + +/* Sensors for PVT(Process Voltage Temperature) */ +#define TXGBE_TS_CTL 0x10300 +#define TXGBE_TS_EN 0x10304 +#define TXGBE_TS_ST 0x10308 +#define TXGBE_TS_ALARM_THRE 0x1030C +#define TXGBE_TS_DALARM_THRE 0x10310 +#define TXGBE_TS_INT_EN 0x10314 +#define TXGBE_TS_ALARM_ST 0x10318 +#define TXGBE_TS_ALARM_ST_DALARM 0x00000002U +#define TXGBE_TS_ALARM_ST_ALARM 0x00000001U + +#define TXGBE_TS_CTL_EVAL_MD 0x80000000U +#define TXGBE_TS_EN_ENA 0x00000001U +#define TXGBE_TS_ST_DATA_OUT_MASK 0x000003FFU +#define TXGBE_TS_ALARM_THRE_MASK 0x000003FFU +#define TXGBE_TS_DALARM_THRE_MASK 0x000003FFU +#define TXGBE_TS_INT_EN_DALARM_INT_EN 0x00000002U +#define TXGBE_TS_INT_EN_ALARM_INT_EN 0x00000001U + +struct txgbe_thermal_diode_data { + s16 temp; + s16 alarm_thresh; + s16 dalarm_thresh; +}; + +struct txgbe_thermal_sensor_data { + struct txgbe_thermal_diode_data sensor; +}; + + +/* FMGR Registers */ +#define TXGBE_SPI_ILDR_STATUS 0x10120 +#define TXGBE_SPI_ILDR_STATUS_PERST 0x00000001U /* PCIE_PERST is done */ +#define TXGBE_SPI_ILDR_STATUS_PWRRST 0x00000002U /* Power on reset is done */ +#define TXGBE_SPI_ILDR_STATUS_SW_RESET 0x00000080U /* software reset is done */ +#define TXGBE_SPI_ILDR_STATUS_LAN0_SW_RST 0x00000200U /* lan0 soft reset done */ +#define TXGBE_SPI_ILDR_STATUS_LAN1_SW_RST 0x00000400U /* lan1 soft reset done */ + +#define TXGBE_MAX_FLASH_LOAD_POLL_TIME 10 + +#define TXGBE_SPI_CMD 0x10104 +#define TXGBE_SPI_CMD_CMD(_v) (((_v) & 0x7) << 28) +#define TXGBE_SPI_CMD_CLK(_v) (((_v) & 0x7) << 25) +#define TXGBE_SPI_CMD_ADDR(_v) (((_v) & 0xFFFFFF)) +#define TXGBE_SPI_DATA 0x10108 +#define TXGBE_SPI_DATA_BYPASS ((0x1) << 31) +#define TXGBE_SPI_DATA_STATUS(_v) (((_v) & 0xFF) << 16) +#define TXGBE_SPI_DATA_OP_DONE ((0x1)) + +#define TXGBE_SPI_STATUS 0x1010C +#define TXGBE_SPI_STATUS_OPDONE ((0x1)) +#define TXGBE_SPI_STATUS_FLASH_BYPASS ((0x1) << 31) + +#define TXGBE_SPI_USR_CMD 0x10110 +#define TXGBE_SPI_CMDCFG0 0x10114 +#define TXGBE_SPI_CMDCFG1 0x10118 +#define TXGBE_SPI_ECC_CTL 0x10130 +#define TXGBE_SPI_ECC_INJ 0x10134 +#define TXGBE_SPI_ECC_ST 0x10138 +#define TXGBE_SPI_ILDR_SWPTR 0x10124 + +/************************* Port Registers ************************************/ +/* I2C registers */ +#define TXGBE_I2C_CON 0x14900 /* I2C Control */ +#define TXGBE_I2C_CON_SLAVE_DISABLE ((1 << 6)) +#define TXGBE_I2C_CON_RESTART_EN ((1 << 5)) +#define TXGBE_I2C_CON_10BITADDR_MASTER ((1 << 4)) +#define TXGBE_I2C_CON_10BITADDR_SLAVE ((1 << 3)) +#define TXGBE_I2C_CON_SPEED(_v) (((_v) & 0x3) << 1) +#define TXGBE_I2C_CON_MASTER_MODE ((1 << 0)) +#define TXGBE_I2C_TAR 0x14904 /* I2C Target Address */ +#define TXGBE_I2C_DATA_CMD 0x14910 /* I2C Rx/Tx Data Buf and Cmd */ +#define TXGBE_I2C_DATA_CMD_STOP ((1 << 9)) +#define TXGBE_I2C_DATA_CMD_READ ((1 << 8) | TXGBE_I2C_DATA_CMD_STOP) +#define TXGBE_I2C_DATA_CMD_WRITE ((0 << 8) | TXGBE_I2C_DATA_CMD_STOP) +#define TXGBE_I2C_SS_SCL_HCNT 0x14914 /* Standard speed I2C Clock SCL + * High Count */ +#define TXGBE_I2C_SS_SCL_LCNT 0x14918 /* Standard speed I2C Clock SCL + * Low Count */ +#define TXGBE_I2C_FS_SCL_HCNT 0x1491C /* Fast Mode and Fast Mode Plus + * I2C Clock SCL High Count */ +#define TXGBE_I2C_FS_SCL_LCNT 0x14920 /* Fast Mode and Fast Mode Plus + * I2C Clock SCL Low Count */ +#define TXGBE_I2C_HS_SCL_HCNT 0x14924 /* High speed I2C Clock SCL + * High Count */ +#define TXGBE_I2C_HS_SCL_LCNT 0x14928 /* High speed I2C Clock SCL Low + * Count */ +#define TXGBE_I2C_INTR_STAT 0x1492C /* I2C Interrupt Status */ +#define TXGBE_I2C_RAW_INTR_STAT 0x14934 /* I2C Raw Interrupt Status */ +#define TXGBE_I2C_INTR_STAT_RX_FULL ((0x1) << 2) +#define TXGBE_I2C_INTR_STAT_TX_EMPTY ((0x1) << 4) +#define TXGBE_I2C_INTR_MASK 0x14930 /* I2C Interrupt Mask */ +#define TXGBE_I2C_RX_TL 0x14938 /* I2C Receive FIFO Threshold */ +#define TXGBE_I2C_TX_TL 0x1493C /* I2C TX FIFO Threshold */ +#define TXGBE_I2C_CLR_INTR 0x14940 /* Clear Combined and Individual + * Int */ +#define TXGBE_I2C_CLR_RX_UNDER 0x14944 /* Clear RX_UNDER Interrupt */ +#define TXGBE_I2C_CLR_RX_OVER 0x14948 /* Clear RX_OVER Interrupt */ +#define TXGBE_I2C_CLR_TX_OVER 0x1494C /* Clear TX_OVER Interrupt */ +#define TXGBE_I2C_CLR_RD_REQ 0x14950 /* Clear RD_REQ Interrupt */ +#define TXGBE_I2C_CLR_TX_ABRT 0x14954 /* Clear TX_ABRT Interrupt */ +#define TXGBE_I2C_CLR_RX_DONE 0x14958 /* Clear RX_DONE Interrupt */ +#define TXGBE_I2C_CLR_ACTIVITY 0x1495C /* Clear ACTIVITY Interrupt */ +#define TXGBE_I2C_CLR_STOP_DET 0x14960 /* Clear STOP_DET Interrupt */ +#define TXGBE_I2C_CLR_START_DET 0x14964 /* Clear START_DET Interrupt */ +#define TXGBE_I2C_CLR_GEN_CALL 0x14968 /* Clear GEN_CALL Interrupt */ +#define TXGBE_I2C_ENABLE 0x1496C /* I2C Enable */ +#define TXGBE_I2C_STATUS 0x14970 /* I2C Status register */ +#define TXGBE_I2C_STATUS_MST_ACTIVITY ((1U << 5)) +#define TXGBE_I2C_TXFLR 0x14974 /* Transmit FIFO Level Reg */ +#define TXGBE_I2C_RXFLR 0x14978 /* Receive FIFO Level Reg */ +#define TXGBE_I2C_SDA_HOLD 0x1497C /* SDA hold time length reg */ +#define TXGBE_I2C_TX_ABRT_SOURCE 0x14980 /* I2C TX Abort Status Reg */ +#define TXGBE_I2C_SDA_SETUP 0x14994 /* I2C SDA Setup Register */ +#define TXGBE_I2C_ENABLE_STATUS 0x1499C /* I2C Enable Status Register */ +#define TXGBE_I2C_FS_SPKLEN 0x149A0 /* ISS and FS spike suppression + * limit */ +#define TXGBE_I2C_HS_SPKLEN 0x149A4 /* HS spike suppression limit */ +#define TXGBE_I2C_SCL_STUCK_TIMEOUT 0x149AC /* I2C SCL stuck at low timeout + * register */ +#define TXGBE_I2C_SDA_STUCK_TIMEOUT 0x149B0 /*I2C SDA Stuck at Low Timeout*/ +#define TXGBE_I2C_CLR_SCL_STUCK_DET 0x149B4 /* Clear SCL Stuck at Low Detect + * Interrupt */ +#define TXGBE_I2C_DEVICE_ID 0x149b8 /* I2C Device ID */ +#define TXGBE_I2C_COMP_PARAM_1 0x149f4 /* Component Parameter Reg */ +#define TXGBE_I2C_COMP_VERSION 0x149f8 /* Component Version ID */ +#define TXGBE_I2C_COMP_TYPE 0x149fc /* DesignWare Component Type + * Reg */ + +#define TXGBE_I2C_SLAVE_ADDR (0xA0 >> 1) +#define TXGBE_I2C_THERMAL_SENSOR_ADDR 0xF8 + + +/* port cfg Registers */ +#define TXGBE_CFG_PORT_CTL 0x14400 +#define TXGBE_CFG_PORT_ST 0x14404 +#define TXGBE_CFG_EX_VTYPE 0x14408 +#define TXGBE_CFG_LED_CTL 0x14424 +#define TXGBE_CFG_VXLAN 0x14410 +#define TXGBE_CFG_VXLAN_GPE 0x14414 +#define TXGBE_CFG_GENEVE 0x14418 +#define TXGBE_CFG_TEREDO 0x1441C +#define TXGBE_CFG_TCP_TIME 0x14420 +#define TXGBE_CFG_TAG_TPID(_i) (0x14430 + ((_i) * 4)) +/* port cfg bit */ +#define TXGBE_CFG_PORT_CTL_PFRSTD 0x00004000U /* Phy Function Reset Done */ +#define TXGBE_CFG_PORT_CTL_D_VLAN 0x00000001U /* double vlan*/ +#define TXGBE_CFG_PORT_CTL_ETAG_ETYPE_VLD 0x00000002U +#define TXGBE_CFG_PORT_CTL_QINQ 0x00000004U +#define TXGBE_CFG_PORT_CTL_DRV_LOAD 0x00000008U +#define TXGBE_CFG_PORT_CTL_FORCE_LKUP 0x00000010U /* force link up */ +#define TXGBE_CFG_PORT_CTL_DCB_EN 0x00000400U /* dcb enabled */ +#define TXGBE_CFG_PORT_CTL_NUM_TC_MASK 0x00000800U /* number of TCs */ +#define TXGBE_CFG_PORT_CTL_NUM_TC_4 0x00000000U +#define TXGBE_CFG_PORT_CTL_NUM_TC_8 0x00000800U +#define TXGBE_CFG_PORT_CTL_NUM_VT_MASK 0x00003000U /* number of TVs */ +#define TXGBE_CFG_PORT_CTL_NUM_VT_NONE 0x00000000U +#define TXGBE_CFG_PORT_CTL_NUM_VT_16 0x00001000U +#define TXGBE_CFG_PORT_CTL_NUM_VT_32 0x00002000U +#define TXGBE_CFG_PORT_CTL_NUM_VT_64 0x00003000U +/* Status Bit */ +#define TXGBE_CFG_PORT_ST_LINK_UP 0x00000001U +#define TXGBE_CFG_PORT_ST_LINK_10G 0x00000002U +#define TXGBE_CFG_PORT_ST_LINK_1G 0x00000004U +#define TXGBE_CFG_PORT_ST_LINK_100M 0x00000008U +#define TXGBE_CFG_PORT_ST_LAN_ID(_r) ((0x00000100U & (_r)) >> 8) +#define TXGBE_LINK_UP_TIME 90 +/* LED CTL Bit */ +#define TXGBE_CFG_LED_CTL_LINK_BSY_SEL 0x00000010U +#define TXGBE_CFG_LED_CTL_LINK_100M_SEL 0x00000008U +#define TXGBE_CFG_LED_CTL_LINK_1G_SEL 0x00000004U +#define TXGBE_CFG_LED_CTL_LINK_10G_SEL 0x00000002U +#define TXGBE_CFG_LED_CTL_LINK_UP_SEL 0x00000001U +#define TXGBE_CFG_LED_CTL_LINK_OD_SHIFT 16 +/* LED modes */ +#define TXGBE_LED_LINK_UP TXGBE_CFG_LED_CTL_LINK_UP_SEL +#define TXGBE_LED_LINK_10G TXGBE_CFG_LED_CTL_LINK_10G_SEL +#define TXGBE_LED_LINK_ACTIVE TXGBE_CFG_LED_CTL_LINK_BSY_SEL +#define TXGBE_LED_LINK_1G TXGBE_CFG_LED_CTL_LINK_1G_SEL +#define TXGBE_LED_LINK_100M TXGBE_CFG_LED_CTL_LINK_100M_SEL + +/* GPIO Registers */ +#define TXGBE_GPIO_DR 0x14800 +#define TXGBE_GPIO_DDR 0x14804 +#define TXGBE_GPIO_CTL 0x14808 +#define TXGBE_GPIO_INTEN 0x14830 +#define TXGBE_GPIO_INTMASK 0x14834 +#define TXGBE_GPIO_INTTYPE_LEVEL 0x14838 +#define TXGBE_GPIO_INTSTATUS 0x14844 +#define TXGBE_GPIO_EOI 0x1484C +/*GPIO bit */ +#define TXGBE_GPIO_DR_0 0x00000001U /* SDP0 Data Value */ +#define TXGBE_GPIO_DR_1 0x00000002U /* SDP1 Data Value */ +#define TXGBE_GPIO_DR_2 0x00000004U /* SDP2 Data Value */ +#define TXGBE_GPIO_DR_3 0x00000008U /* SDP3 Data Value */ +#define TXGBE_GPIO_DR_4 0x00000010U /* SDP4 Data Value */ +#define TXGBE_GPIO_DR_5 0x00000020U /* SDP5 Data Value */ +#define TXGBE_GPIO_DR_6 0x00000040U /* SDP6 Data Value */ +#define TXGBE_GPIO_DR_7 0x00000080U /* SDP7 Data Value */ +#define TXGBE_GPIO_DDR_0 0x00000001U /* SDP0 IO direction */ +#define TXGBE_GPIO_DDR_1 0x00000002U /* SDP1 IO direction */ +#define TXGBE_GPIO_DDR_2 0x00000004U /* SDP1 IO direction */ +#define TXGBE_GPIO_DDR_3 0x00000008U /* SDP3 IO direction */ +#define TXGBE_GPIO_DDR_4 0x00000010U /* SDP4 IO direction */ +#define TXGBE_GPIO_DDR_5 0x00000020U /* SDP5 IO direction */ +#define TXGBE_GPIO_DDR_6 0x00000040U /* SDP6 IO direction */ +#define TXGBE_GPIO_DDR_7 0x00000080U /* SDP7 IO direction */ +#define TXGBE_GPIO_CTL_SW_MODE 0x00000000U /* SDP software mode */ +#define TXGBE_GPIO_INTEN_1 0x00000002U /* SDP1 interrupt enable */ +#define TXGBE_GPIO_INTEN_2 0x00000004U /* SDP2 interrupt enable */ +#define TXGBE_GPIO_INTEN_3 0x00000008U /* SDP3 interrupt enable */ +#define TXGBE_GPIO_INTEN_5 0x00000020U /* SDP5 interrupt enable */ +#define TXGBE_GPIO_INTEN_6 0x00000040U /* SDP6 interrupt enable */ +#define TXGBE_GPIO_INTTYPE_LEVEL_2 0x00000004U /* SDP2 interrupt type level */ +#define TXGBE_GPIO_INTTYPE_LEVEL_3 0x00000008U /* SDP3 interrupt type level */ +#define TXGBE_GPIO_INTTYPE_LEVEL_5 0x00000020U /* SDP5 interrupt type level */ +#define TXGBE_GPIO_INTTYPE_LEVEL_6 0x00000040U /* SDP6 interrupt type level */ +#define TXGBE_GPIO_INTSTATUS_1 0x00000002U /* SDP1 interrupt status */ +#define TXGBE_GPIO_INTSTATUS_2 0x00000004U /* SDP2 interrupt status */ +#define TXGBE_GPIO_INTSTATUS_3 0x00000008U /* SDP3 interrupt status */ +#define TXGBE_GPIO_INTSTATUS_5 0x00000020U /* SDP5 interrupt status */ +#define TXGBE_GPIO_INTSTATUS_6 0x00000040U /* SDP6 interrupt status */ +#define TXGBE_GPIO_EOI_2 0x00000004U /* SDP2 interrupt clear */ +#define TXGBE_GPIO_EOI_3 0x00000008U /* SDP3 interrupt clear */ +#define TXGBE_GPIO_EOI_5 0x00000020U /* SDP5 interrupt clear */ +#define TXGBE_GPIO_EOI_6 0x00000040U /* SDP6 interrupt clear */ + +/* TPH registers */ +#define TXGBE_CFG_TPH_TDESC 0x14F00 /* TPH conf for Tx desc write back */ +#define TXGBE_CFG_TPH_RDESC 0x14F04 /* TPH conf for Rx desc write back */ +#define TXGBE_CFG_TPH_RHDR 0x14F08 /* TPH conf for writing Rx pkt header */ +#define TXGBE_CFG_TPH_RPL 0x14F0C /* TPH conf for payload write access */ +/* TPH bit */ +#define TXGBE_CFG_TPH_TDESC_EN 0x80000000U +#define TXGBE_CFG_TPH_TDESC_PH_SHIFT 29 +#define TXGBE_CFG_TPH_TDESC_ST_SHIFT 16 +#define TXGBE_CFG_TPH_RDESC_EN 0x80000000U +#define TXGBE_CFG_TPH_RDESC_PH_SHIFT 29 +#define TXGBE_CFG_TPH_RDESC_ST_SHIFT 16 +#define TXGBE_CFG_TPH_RHDR_EN 0x00008000U +#define TXGBE_CFG_TPH_RHDR_PH_SHIFT 13 +#define TXGBE_CFG_TPH_RHDR_ST_SHIFT 0 +#define TXGBE_CFG_TPH_RPL_EN 0x80000000U +#define TXGBE_CFG_TPH_RPL_PH_SHIFT 29 +#define TXGBE_CFG_TPH_RPL_ST_SHIFT 16 + +/*********************** Transmit DMA registers **************************/ +/* transmit global control */ +#define TXGBE_TDM_CTL 0x18000 +#define TXGBE_TDM_VF_TE(_i) (0x18004 + ((_i) * 4)) +#define TXGBE_TDM_PB_THRE(_i) (0x18020 + ((_i) * 4)) /* 8 of these 0 - 7 */ +#define TXGBE_TDM_LLQ(_i) (0x18040 + ((_i) * 4)) /* 4 of these (0-3) */ +#define TXGBE_TDM_ETYPE_LB_L 0x18050 +#define TXGBE_TDM_ETYPE_LB_H 0x18054 +#define TXGBE_TDM_ETYPE_AS_L 0x18058 +#define TXGBE_TDM_ETYPE_AS_H 0x1805C +#define TXGBE_TDM_MAC_AS_L 0x18060 +#define TXGBE_TDM_MAC_AS_H 0x18064 +#define TXGBE_TDM_VLAN_AS_L 0x18070 +#define TXGBE_TDM_VLAN_AS_H 0x18074 +#define TXGBE_TDM_TCP_FLG_L 0x18078 +#define TXGBE_TDM_TCP_FLG_H 0x1807C +#define TXGBE_TDM_VLAN_INS(_i) (0x18100 + ((_i) * 4)) /* 64 of these 0 - 63 */ +/* TDM CTL BIT */ +#define TXGBE_TDM_CTL_TE 0x1 /* Transmit Enable */ +#define TXGBE_TDM_CTL_PADDING 0x2 /* Padding byte number for ipsec ESP */ +#define TXGBE_TDM_CTL_VT_SHIFT 16 /* VLAN EtherType */ +/* Per VF Port VLAN insertion rules */ +#define TXGBE_TDM_VLAN_INS_VLANA_DEFAULT 0x40000000U /*Always use default VLAN*/ +#define TXGBE_TDM_VLAN_INS_VLANA_NEVER 0x80000000U /* Never insert VLAN tag */ + +#define TXGBE_TDM_RP_CTL 0x18400 +#define TXGBE_TDM_RP_CTL_RST ((0x1) << 0) +#define TXGBE_TDM_RP_CTL_RPEN ((0x1) << 2) +#define TXGBE_TDM_RP_CTL_RLEN ((0x1) << 3) +#define TXGBE_TDM_RP_IDX 0x1820C +#define TXGBE_TDM_RP_RATE 0x18404 +#define TXGBE_TDM_RP_RATE_MIN(v) ((0x3FFF & (v))) +#define TXGBE_TDM_RP_RATE_MAX(v) ((0x3FFF & (v)) << 16) + +/* qos */ +#define TXGBE_TDM_PBWARB_CTL 0x18200 +#define TXGBE_TDM_PBWARB_CFG(_i) (0x18220 + ((_i) * 4)) /* 8 of these (0-7) */ +#define TXGBE_TDM_MMW 0x18208 +#define TXGBE_TDM_VM_CREDIT(_i) (0x18500 + ((_i) * 4)) +#define TXGBE_TDM_VM_CREDIT_VAL(v) (0x3FF & (v)) +/* fcoe */ +#define TXGBE_TDM_FC_EOF 0x18384 +#define TXGBE_TDM_FC_SOF 0x18380 +/* etag */ +#define TXGBE_TDM_ETAG_INS(_i) (0x18700 + ((_i) * 4)) /* 64 of these 0 - 63 */ +/* statistic */ +#define TXGBE_TDM_SEC_DRP 0x18304 +#define TXGBE_TDM_PKT_CNT 0x18308 +#define TXGBE_TDM_OS2BMC_CNT 0x18314 + +/**************************** Receive DMA registers **************************/ +/* receive control */ +#define TXGBE_RDM_ARB_CTL 0x12000 +#define TXGBE_RDM_VF_RE(_i) (0x12004 + ((_i) * 4)) +#define TXGBE_RDM_RSC_CTL 0x1200C +#define TXGBE_RDM_ARB_CFG(_i) (0x12040 + ((_i) * 4)) /* 8 of these (0-7) */ +#define TXGBE_RDM_PF_QDE(_i) (0x12080 + ((_i) * 4)) +#define TXGBE_RDM_PF_HIDE(_i) (0x12090 + ((_i) * 4)) +/* VFRE bitmask */ +#define TXGBE_RDM_VF_RE_ENABLE_ALL 0xFFFFFFFFU + +/* FCoE DMA Context Registers */ +#define TXGBE_RDM_FCPTRL 0x12410 +#define TXGBE_RDM_FCPTRH 0x12414 +#define TXGBE_RDM_FCBUF 0x12418 +#define TXGBE_RDM_FCBUF_VALID ((0x1)) /* DMA Context Valid */ +#define TXGBE_RDM_FCBUF_SIZE(_v) (((_v) & 0x3) << 3) /* User Buffer Size */ +#define TXGBE_RDM_FCBUF_COUNT(_v) (((_v) & 0xFF) << 8) /* Num of User Buf */ +#define TXGBE_RDM_FCBUF_OFFSET(_v) (((_v) & 0xFFFF) << 16) /* User Buf Offset*/ +#define TXGBE_RDM_FCRW 0x12420 +#define TXGBE_RDM_FCRW_FCSEL(_v) (((_v) & 0x1FF)) /* FC X_ID: 11 bits */ +#define TXGBE_RDM_FCRW_WE ((0x1) << 14) /* Write enable */ +#define TXGBE_RDM_FCRW_RE ((0x1) << 15) /* Read enable */ +#define TXGBE_RDM_FCRW_LASTSIZE(_v) (((_v) & 0xFFFF) << 16) + +/* statistic */ +#define TXGBE_RDM_DRP_PKT 0x12500 +#define TXGBE_RDM_BMC2OS_CNT 0x12510 + +/***************************** RDB registers *********************************/ +/* Flow Control Registers */ +#define TXGBE_RDB_RFCV(_i) (0x19200 + ((_i) * 4)) /* 4 of these (0-3)*/ +#define TXGBE_RDB_RFCL(_i) (0x19220 + ((_i) * 4)) /* 8 of these (0-7)*/ +#define TXGBE_RDB_RFCH(_i) (0x19260 + ((_i) * 4)) /* 8 of these (0-7)*/ +#define TXGBE_RDB_RFCRT 0x192A0 +#define TXGBE_RDB_RFCC 0x192A4 +/* receive packet buffer */ +#define TXGBE_RDB_PB_WRAP 0x19004 +#define TXGBE_RDB_PB_SZ(_i) (0x19020 + ((_i) * 4)) +#define TXGBE_RDB_PB_CTL 0x19000 +#define TXGBE_RDB_UP2TC 0x19008 +#define TXGBE_RDB_PB_SZ_SHIFT 10 +#define TXGBE_RDB_PB_SZ_MASK 0x000FFC00U +/* lli interrupt */ +#define TXGBE_RDB_LLI_THRE 0x19080 +#define TXGBE_RDB_LLI_THRE_SZ(_v) ((0xFFF & (_v))) +#define TXGBE_RDB_LLI_THRE_UP(_v) ((0x7 & (_v)) << 16) +#define TXGBE_RDB_LLI_THRE_UP_SHIFT 16 + +/* ring assignment */ +#define TXGBE_RDB_PL_CFG(_i) (0x19300 + ((_i) * 4)) +#define TXGBE_RDB_RSSTBL(_i) (0x19400 + ((_i) * 4)) +#define TXGBE_RDB_RSSRK(_i) (0x19480 + ((_i) * 4)) +#define TXGBE_RDB_RSS_TC 0x194F0 +#define TXGBE_RDB_RA_CTL 0x194F4 +#define TXGBE_RDB_5T_SA(_i) (0x19600 + ((_i) * 4)) /* Src Addr Q Filter */ +#define TXGBE_RDB_5T_DA(_i) (0x19800 + ((_i) * 4)) /* Dst Addr Q Filter */ +#define TXGBE_RDB_5T_SDP(_i) (0x19A00 + ((_i) * 4)) /*Src Dst Addr Q Filter*/ +#define TXGBE_RDB_5T_CTL0(_i) (0x19C00 + ((_i) * 4)) /* Five Tuple Q Filter */ +#define TXGBE_RDB_ETYPE_CLS(_i) (0x19100 + ((_i) * 4)) /* EType Q Select */ +#define TXGBE_RDB_SYN_CLS 0x19130 +#define TXGBE_RDB_5T_CTL1(_i) (0x19E00 + ((_i) * 4)) /*128 of these (0-127)*/ +/* Flow Director registers */ +#define TXGBE_RDB_FDIR_CTL 0x19500 +#define TXGBE_RDB_FDIR_HKEY 0x19568 +#define TXGBE_RDB_FDIR_SKEY 0x1956C +#define TXGBE_RDB_FDIR_DA4_MSK 0x1953C +#define TXGBE_RDB_FDIR_SA4_MSK 0x19540 +#define TXGBE_RDB_FDIR_TCP_MSK 0x19544 +#define TXGBE_RDB_FDIR_UDP_MSK 0x19548 +#define TXGBE_RDB_FDIR_SCTP_MSK 0x19560 +#define TXGBE_RDB_FDIR_IP6_MSK 0x19574 +#define TXGBE_RDB_FDIR_OTHER_MSK 0x19570 +#define TXGBE_RDB_FDIR_FLEX_CFG(_i) (0x19580 + ((_i) * 4)) +/* Flow Director Stats registers */ +#define TXGBE_RDB_FDIR_FREE 0x19538 +#define TXGBE_RDB_FDIR_LEN 0x1954C +#define TXGBE_RDB_FDIR_USE_ST 0x19550 +#define TXGBE_RDB_FDIR_FAIL_ST 0x19554 +#define TXGBE_RDB_FDIR_MATCH 0x19558 +#define TXGBE_RDB_FDIR_MISS 0x1955C +/* Flow Director Programming registers */ +#define TXGBE_RDB_FDIR_IP6(_i) (0x1950C + ((_i) * 4)) /* 3 of these (0-2)*/ +#define TXGBE_RDB_FDIR_SA 0x19518 +#define TXGBE_RDB_FDIR_DA 0x1951C +#define TXGBE_RDB_FDIR_PORT 0x19520 +#define TXGBE_RDB_FDIR_FLEX 0x19524 +#define TXGBE_RDB_FDIR_HASH 0x19528 +#define TXGBE_RDB_FDIR_CMD 0x1952C +/* VM RSS */ +#define TXGBE_RDB_VMRSSRK(_i, _p) (0x1A000 + ((_i) * 4) + ((_p) * 0x40)) +#define TXGBE_RDB_VMRSSTBL(_i, _p) (0x1B000 + ((_i) * 4) + ((_p) * 0x40)) +/* FCoE Redirection */ +#define TXGBE_RDB_FCRE_TBL_SIZE (8) /* Max entries in FCRETA */ +#define TXGBE_RDB_FCRE_CTL 0x19140 +#define TXGBE_RDB_FCRE_CTL_ENA ((0x1)) /* FCoE Redir Table Enable */ +#define TXGBE_RDB_FCRE_TBL(_i) (0x19160 + ((_i) * 4)) +#define TXGBE_RDB_FCRE_TBL_RING(_v) (((_v) & 0x7F)) /* output queue number */ +/* statistic */ +#define TXGBE_RDB_MPCNT(_i) (0x19040 + ((_i) * 4)) /* 8 of 3FA0-3FBC*/ +#define TXGBE_RDB_LXONTXC 0x1921C +#define TXGBE_RDB_LXOFFTXC 0x19218 +#define TXGBE_RDB_PXON2OFFCNT(_i) (0x19280 + ((_i) * 4)) /* 8 of these */ +#define TXGBE_RDB_PXONTXC(_i) (0x192E0 + ((_i) * 4)) /* 8 of 3F00-3F1C*/ +#define TXGBE_RDB_PXOFFTXC(_i) (0x192C0 + ((_i) * 4)) /* 8 of 3F20-3F3C*/ +#define TXGBE_RDB_PFCMACDAL 0x19210 +#define TXGBE_RDB_PFCMACDAH 0x19214 +#define TXGBE_RDB_TXSWERR 0x1906C +#define TXGBE_RDB_TXSWERR_TB_FREE 0x3FF +/* rdb_pl_cfg reg mask */ +#define TXGBE_RDB_PL_CFG_L4HDR 0x2 +#define TXGBE_RDB_PL_CFG_L3HDR 0x4 +#define TXGBE_RDB_PL_CFG_L2HDR 0x8 +#define TXGBE_RDB_PL_CFG_TUN_OUTER_L2HDR 0x20 +#define TXGBE_RDB_PL_CFG_TUN_TUNHDR 0x10 +#define TXGBE_RDB_PL_CFG_RSS_PL_MASK 0x7 +#define TXGBE_RDB_PL_CFG_RSS_PL_SHIFT 29 +/* RQTC Bit Masks and Shifts */ +#define TXGBE_RDB_RSS_TC_SHIFT_TC(_i) ((_i) * 4) +#define TXGBE_RDB_RSS_TC_TC0_MASK (0x7 << 0) +#define TXGBE_RDB_RSS_TC_TC1_MASK (0x7 << 4) +#define TXGBE_RDB_RSS_TC_TC2_MASK (0x7 << 8) +#define TXGBE_RDB_RSS_TC_TC3_MASK (0x7 << 12) +#define TXGBE_RDB_RSS_TC_TC4_MASK (0x7 << 16) +#define TXGBE_RDB_RSS_TC_TC5_MASK (0x7 << 20) +#define TXGBE_RDB_RSS_TC_TC6_MASK (0x7 << 24) +#define TXGBE_RDB_RSS_TC_TC7_MASK (0x7 << 28) +/* Packet Buffer Initialization */ +#define TXGBE_MAX_PACKET_BUFFERS 8 +#define TXGBE_RDB_PB_SZ_48KB 0x00000030U /* 48KB Packet Buffer */ +#define TXGBE_RDB_PB_SZ_64KB 0x00000040U /* 64KB Packet Buffer */ +#define TXGBE_RDB_PB_SZ_80KB 0x00000050U /* 80KB Packet Buffer */ +#define TXGBE_RDB_PB_SZ_128KB 0x00000080U /* 128KB Packet Buffer */ +#define TXGBE_RDB_PB_SZ_MAX 0x00000200U /* 512KB Packet Buffer */ + + +/* Packet buffer allocation strategies */ +enum { + PBA_STRATEGY_EQUAL = 0, /* Distribute PB space equally */ +#define PBA_STRATEGY_EQUAL PBA_STRATEGY_EQUAL + PBA_STRATEGY_WEIGHTED = 1, /* Weight front half of TCs */ +#define PBA_STRATEGY_WEIGHTED PBA_STRATEGY_WEIGHTED +}; + + +/* FCRTL Bit Masks */ +#define TXGBE_RDB_RFCL_XONE 0x80000000U /* XON enable */ +#define TXGBE_RDB_RFCH_XOFFE 0x80000000U /* Packet buffer fc enable */ +/* FCCFG Bit Masks */ +#define TXGBE_RDB_RFCC_RFCE_802_3X 0x00000008U /* Tx link FC enable */ +#define TXGBE_RDB_RFCC_RFCE_PRIORITY 0x00000010U /* Tx priority FC enable */ + +/* Immediate Interrupt Rx (A.K.A. Low Latency Interrupt) */ +#define TXGBE_RDB_5T_CTL1_SIZE_BP 0x00001000U /* Packet size bypass */ +#define TXGBE_RDB_5T_CTL1_LLI 0x00100000U /* Enables low latency Int */ +#define TXGBE_RDB_LLI_THRE_PRIORITY_MASK 0x00070000U /* VLAN priority mask */ +#define TXGBE_RDB_LLI_THRE_PRIORITY_EN 0x00080000U /* VLAN priority enable */ +#define TXGBE_RDB_LLI_THRE_CMN_EN 0x00100000U /* cmn packet receiveed */ + +#define TXGBE_MAX_RDB_5T_CTL0_FILTERS 128 +#define TXGBE_RDB_5T_CTL0_PROTOCOL_MASK 0x00000003U +#define TXGBE_RDB_5T_CTL0_PROTOCOL_TCP 0x00000000U +#define TXGBE_RDB_5T_CTL0_PROTOCOL_UDP 0x00000001U +#define TXGBE_RDB_5T_CTL0_PROTOCOL_SCTP 2 +#define TXGBE_RDB_5T_CTL0_PRIORITY_MASK 0x00000007U +#define TXGBE_RDB_5T_CTL0_PRIORITY_SHIFT 2 +#define TXGBE_RDB_5T_CTL0_POOL_MASK 0x0000003FU +#define TXGBE_RDB_5T_CTL0_POOL_SHIFT 8 +#define TXGBE_RDB_5T_CTL0_5TUPLE_MASK_MASK 0x0000001FU +#define TXGBE_RDB_5T_CTL0_5TUPLE_MASK_SHIFT 25 +#define TXGBE_RDB_5T_CTL0_SOURCE_ADDR_MASK 0x1E +#define TXGBE_RDB_5T_CTL0_DEST_ADDR_MASK 0x1D +#define TXGBE_RDB_5T_CTL0_SOURCE_PORT_MASK 0x1B +#define TXGBE_RDB_5T_CTL0_DEST_PORT_MASK 0x17 +#define TXGBE_RDB_5T_CTL0_PROTOCOL_COMP_MASK 0x0F +#define TXGBE_RDB_5T_CTL0_POOL_MASK_EN 0x40000000U +#define TXGBE_RDB_5T_CTL0_QUEUE_ENABLE 0x80000000U + +#define TXGBE_RDB_ETYPE_CLS_RX_QUEUE 0x007F0000U /* bits 22:16 */ +#define TXGBE_RDB_ETYPE_CLS_RX_QUEUE_SHIFT 16 +#define TXGBE_RDB_ETYPE_CLS_LLI 0x20000000U /* bit 29 */ +#define TXGBE_RDB_ETYPE_CLS_QUEUE_EN 0x80000000U /* bit 31 */ + +/* Receive Config masks */ +#define TXGBE_RDB_PB_CTL_RXEN (0x80000000) /* Enable Receiver */ +#define TXGBE_RDB_PB_CTL_DISABLED 0x1 + +#define TXGBE_RDB_RA_CTL_RSS_EN 0x00000004U /* RSS Enable */ +#define TXGBE_RDB_RA_CTL_RSS_MASK 0xFFFF0000U +#define TXGBE_RDB_RA_CTL_RSS_IPV4_TCP 0x00010000U +#define TXGBE_RDB_RA_CTL_RSS_IPV4 0x00020000U +#define TXGBE_RDB_RA_CTL_RSS_IPV6 0x00100000U +#define TXGBE_RDB_RA_CTL_RSS_IPV6_TCP 0x00200000U +#define TXGBE_RDB_RA_CTL_RSS_IPV4_UDP 0x00400000U +#define TXGBE_RDB_RA_CTL_RSS_IPV6_UDP 0x00800000U + +enum txgbe_fdir_pballoc_type { + TXGBE_FDIR_PBALLOC_NONE = 0, + TXGBE_FDIR_PBALLOC_64K = 1, + TXGBE_FDIR_PBALLOC_128K = 2, + TXGBE_FDIR_PBALLOC_256K = 3, +}; + +/* Flow Director register values */ +#define TXGBE_RDB_FDIR_CTL_PBALLOC_64K 0x00000001U +#define TXGBE_RDB_FDIR_CTL_PBALLOC_128K 0x00000002U +#define TXGBE_RDB_FDIR_CTL_PBALLOC_256K 0x00000003U +#define TXGBE_RDB_FDIR_CTL_INIT_DONE 0x00000008U +#define TXGBE_RDB_FDIR_CTL_PERFECT_MATCH 0x00000010U +#define TXGBE_RDB_FDIR_CTL_REPORT_STATUS 0x00000020U +#define TXGBE_RDB_FDIR_CTL_REPORT_STATUS_ALWAYS 0x00000080U +#define TXGBE_RDB_FDIR_CTL_DROP_Q_SHIFT 8 +#define TXGBE_RDB_FDIR_CTL_FILTERMODE_SHIFT 21 +#define TXGBE_RDB_FDIR_CTL_MAX_LENGTH_SHIFT 24 +#define TXGBE_RDB_FDIR_CTL_HASH_BITS_SHIFT 20 +#define TXGBE_RDB_FDIR_CTL_FULL_THRESH_MASK 0xF0000000U +#define TXGBE_RDB_FDIR_CTL_FULL_THRESH_SHIFT 28 + + +#define TXGBE_RDB_FDIR_TCP_MSK_DPORTM_SHIFT 16 +#define TXGBE_RDB_FDIR_UDP_MSK_DPORTM_SHIFT 16 +#define TXGBE_RDB_FDIR_IP6_MSK_DIPM_SHIFT 16 +#define TXGBE_RDB_FDIR_OTHER_MSK_POOL 0x00000004U +#define TXGBE_RDB_FDIR_OTHER_MSK_L4P 0x00000008U +#define TXGBE_RDB_FDIR_OTHER_MSK_L3P 0x00000010U +#define TXGBE_RDB_FDIR_OTHER_MSK_TUN_TYPE 0x00000020U +#define TXGBE_RDB_FDIR_OTHER_MSK_TUN_OUTIP 0x00000040U +#define TXGBE_RDB_FDIR_OTHER_MSK_TUN 0x00000080U + +#define TXGBE_RDB_FDIR_FLEX_CFG_BASE_MAC 0x00000000U +#define TXGBE_RDB_FDIR_FLEX_CFG_BASE_IP 0x00000001U +#define TXGBE_RDB_FDIR_FLEX_CFG_BASE_L4_HDR 0x00000002U +#define TXGBE_RDB_FDIR_FLEX_CFG_BASE_L4_PAYLOAD 0x00000003U +#define TXGBE_RDB_FDIR_FLEX_CFG_BASE_MSK 0x00000003U +#define TXGBE_RDB_FDIR_FLEX_CFG_MSK 0x00000004U +#define TXGBE_RDB_FDIR_FLEX_CFG_OFST 0x000000F8U +#define TXGBE_RDB_FDIR_FLEX_CFG_OFST_SHIFT 3 +#define TXGBE_RDB_FDIR_FLEX_CFG_VM_SHIFT 8 + +#define TXGBE_RDB_FDIR_PORT_DESTINATION_SHIFT 16 +#define TXGBE_RDB_FDIR_FLEX_FLEX_SHIFT 16 +#define TXGBE_RDB_FDIR_HASH_BUCKET_VALID_SHIFT 15 +#define TXGBE_RDB_FDIR_HASH_SIG_SW_INDEX_SHIFT 16 + +#define TXGBE_RDB_FDIR_CMD_CMD_MASK 0x00000003U +#define TXGBE_RDB_FDIR_CMD_CMD_ADD_FLOW 0x00000001U +#define TXGBE_RDB_FDIR_CMD_CMD_REMOVE_FLOW 0x00000002U +#define TXGBE_RDB_FDIR_CMD_CMD_QUERY_REM_FILT 0x00000003U +#define TXGBE_RDB_FDIR_CMD_FILTER_VALID 0x00000004U +#define TXGBE_RDB_FDIR_CMD_FILTER_UPDATE 0x00000008U +#define TXGBE_RDB_FDIR_CMD_IPv6DMATCH 0x00000010U +#define TXGBE_RDB_FDIR_CMD_L4TYPE_UDP 0x00000020U +#define TXGBE_RDB_FDIR_CMD_L4TYPE_TCP 0x00000040U +#define TXGBE_RDB_FDIR_CMD_L4TYPE_SCTP 0x00000060U +#define TXGBE_RDB_FDIR_CMD_IPV6 0x00000080U +#define TXGBE_RDB_FDIR_CMD_CLEARHT 0x00000100U +#define TXGBE_RDB_FDIR_CMD_DROP 0x00000200U +#define TXGBE_RDB_FDIR_CMD_INT 0x00000400U +#define TXGBE_RDB_FDIR_CMD_LAST 0x00000800U +#define TXGBE_RDB_FDIR_CMD_COLLISION 0x00001000U +#define TXGBE_RDB_FDIR_CMD_QUEUE_EN 0x00008000U +#define TXGBE_RDB_FDIR_CMD_FLOW_TYPE_SHIFT 5 +#define TXGBE_RDB_FDIR_CMD_RX_QUEUE_SHIFT 16 +#define TXGBE_RDB_FDIR_CMD_TUNNEL_FILTER_SHIFT 23 +#define TXGBE_RDB_FDIR_CMD_VT_POOL_SHIFT 24 +#define TXGBE_RDB_FDIR_INIT_DONE_POLL 10 +#define TXGBE_RDB_FDIR_CMD_CMD_POLL 10 +#define TXGBE_RDB_FDIR_CMD_TUNNEL_FILTER 0x00800000U +#define TXGBE_RDB_FDIR_DROP_QUEUE 127 +#define TXGBE_FDIR_INIT_DONE_POLL 10 + +/******************************* PSR Registers *******************************/ +/* psr control */ +#define TXGBE_PSR_CTL 0x15000 +#define TXGBE_PSR_VLAN_CTL 0x15088 +#define TXGBE_PSR_VM_CTL 0x151B0 +/* Header split receive */ +#define TXGBE_PSR_CTL_SW_EN 0x00040000U +#define TXGBE_PSR_CTL_RSC_DIS 0x00010000U +#define TXGBE_PSR_CTL_RSC_ACK 0x00020000U +#define TXGBE_PSR_CTL_PCSD 0x00002000U +#define TXGBE_PSR_CTL_IPPCSE 0x00001000U +#define TXGBE_PSR_CTL_BAM 0x00000400U +#define TXGBE_PSR_CTL_UPE 0x00000200U +#define TXGBE_PSR_CTL_MPE 0x00000100U +#define TXGBE_PSR_CTL_MFE 0x00000080U +#define TXGBE_PSR_CTL_MO 0x00000060U +#define TXGBE_PSR_CTL_TPE 0x00000010U +#define TXGBE_PSR_CTL_MO_SHIFT 5 +/* VT_CTL bitmasks */ +#define TXGBE_PSR_VM_CTL_DIS_DEFPL 0x20000000U /* disable default pool */ +#define TXGBE_PSR_VM_CTL_REPLEN 0x40000000U /* replication enabled */ +#define TXGBE_PSR_VM_CTL_POOL_SHIFT 7 +#define TXGBE_PSR_VM_CTL_POOL_MASK (0x3F << TXGBE_PSR_VM_CTL_POOL_SHIFT) +/* VLAN Control Bit Masks */ +#define TXGBE_PSR_VLAN_CTL_VET 0x0000FFFFU /* bits 0-15 */ +#define TXGBE_PSR_VLAN_CTL_CFI 0x10000000U /* bit 28 */ +#define TXGBE_PSR_VLAN_CTL_CFIEN 0x20000000U /* bit 29 */ +#define TXGBE_PSR_VLAN_CTL_VFE 0x40000000U /* bit 30 */ + +/* vm L2 contorl */ +#define TXGBE_PSR_VM_L2CTL(_i) (0x15600 + ((_i) * 4)) +/* VMOLR bitmasks */ +#define TXGBE_PSR_VM_L2CTL_LBDIS 0x00000002U /* disable loopback */ +#define TXGBE_PSR_VM_L2CTL_LLB 0x00000004U /* local pool loopback */ +#define TXGBE_PSR_VM_L2CTL_UPE 0x00000010U /* unicast promiscuous */ +#define TXGBE_PSR_VM_L2CTL_TPE 0x00000020U /* ETAG promiscuous */ +#define TXGBE_PSR_VM_L2CTL_VACC 0x00000040U /* accept nomatched vlan */ +#define TXGBE_PSR_VM_L2CTL_VPE 0x00000080U /* vlan promiscuous mode */ +#define TXGBE_PSR_VM_L2CTL_AUPE 0x00000100U /* accept untagged packets */ +#define TXGBE_PSR_VM_L2CTL_ROMPE 0x00000200U /*accept packets in MTA tbl*/ +#define TXGBE_PSR_VM_L2CTL_ROPE 0x00000400U /* accept packets in UC tbl*/ +#define TXGBE_PSR_VM_L2CTL_BAM 0x00000800U /* accept broadcast packets*/ +#define TXGBE_PSR_VM_L2CTL_MPE 0x00001000U /* multicast promiscuous */ + +/* etype switcher 1st stage */ +#define TXGBE_PSR_ETYPE_SWC(_i) (0x15128 + ((_i) * 4)) /* EType Queue Filter */ +/* ETYPE Queue Filter/Select Bit Masks */ +#define TXGBE_MAX_PSR_ETYPE_SWC_FILTERS 8 +#define TXGBE_PSR_ETYPE_SWC_FCOE 0x08000000U /* bit 27 */ +#define TXGBE_PSR_ETYPE_SWC_TX_ANTISPOOF 0x20000000U /* bit 29 */ +#define TXGBE_PSR_ETYPE_SWC_1588 0x40000000U /* bit 30 */ +#define TXGBE_PSR_ETYPE_SWC_FILTER_EN 0x80000000U /* bit 31 */ +#define TXGBE_PSR_ETYPE_SWC_POOL_ENABLE (1 << 26) /* bit 26 */ +#define TXGBE_PSR_ETYPE_SWC_POOL_SHIFT 20 +/* + * ETQF filter list: one static filter per filter consumer. This is + * to avoid filter collisions later. Add new filters + * here!! + * + * Current filters: + * EAPOL 802.1x (0x888e): Filter 0 + * FCoE (0x8906): Filter 2 + * 1588 (0x88f7): Filter 3 + * FIP (0x8914): Filter 4 + * LLDP (0x88CC): Filter 5 + * LACP (0x8809): Filter 6 + * FC (0x8808): Filter 7 + */ +#define TXGBE_PSR_ETYPE_SWC_FILTER_EAPOL 0 +#define TXGBE_PSR_ETYPE_SWC_FILTER_FCOE 2 +#define TXGBE_PSR_ETYPE_SWC_FILTER_1588 3 +#define TXGBE_PSR_ETYPE_SWC_FILTER_FIP 4 +#define TXGBE_PSR_ETYPE_SWC_FILTER_LLDP 5 +#define TXGBE_PSR_ETYPE_SWC_FILTER_LACP 6 +#define TXGBE_PSR_ETYPE_SWC_FILTER_FC 7 + +/* mcasst/ucast overflow tbl */ +#define TXGBE_PSR_MC_TBL(_i) (0x15200 + ((_i) * 4)) +#define TXGBE_PSR_UC_TBL(_i) (0x15400 + ((_i) * 4)) + +/* vlan tbl */ +#define TXGBE_PSR_VLAN_TBL(_i) (0x16000 + ((_i) * 4)) + +/* mac switcher */ +#define TXGBE_PSR_MAC_SWC_AD_L 0x16200 +#define TXGBE_PSR_MAC_SWC_AD_H 0x16204 +#define TXGBE_PSR_MAC_SWC_VM_L 0x16208 +#define TXGBE_PSR_MAC_SWC_VM_H 0x1620C +#define TXGBE_PSR_MAC_SWC_IDX 0x16210 +/* RAH */ +#define TXGBE_PSR_MAC_SWC_AD_H_AD(v) (((v) & 0xFFFF)) +#define TXGBE_PSR_MAC_SWC_AD_H_ADTYPE(v) (((v) & 0x1) << 30) +#define TXGBE_PSR_MAC_SWC_AD_H_AV 0x80000000U +#define TXGBE_CLEAR_VMDQ_ALL 0xFFFFFFFFU + +/* vlan switch */ +#define TXGBE_PSR_VLAN_SWC 0x16220 +#define TXGBE_PSR_VLAN_SWC_VM_L 0x16224 +#define TXGBE_PSR_VLAN_SWC_VM_H 0x16228 +#define TXGBE_PSR_VLAN_SWC_IDX 0x16230 /* 64 vlan entries */ +/* VLAN pool filtering masks */ +#define TXGBE_PSR_VLAN_SWC_VIEN 0x80000000U /* filter is valid */ +#define TXGBE_PSR_VLAN_SWC_ENTRIES 64 +#define TXGBE_PSR_VLAN_SWC_VLANID_MASK 0x00000FFFU +#define TXGBE_ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.1q protocol */ + +/* cloud switch */ +#define TXGBE_PSR_CL_SWC_DST0 0x16240 +#define TXGBE_PSR_CL_SWC_DST1 0x16244 +#define TXGBE_PSR_CL_SWC_DST2 0x16248 +#define TXGBE_PSR_CL_SWC_DST3 0x1624c +#define TXGBE_PSR_CL_SWC_KEY 0x16250 +#define TXGBE_PSR_CL_SWC_CTL 0x16254 +#define TXGBE_PSR_CL_SWC_VM_L 0x16258 +#define TXGBE_PSR_CL_SWC_VM_H 0x1625c +#define TXGBE_PSR_CL_SWC_IDX 0x16260 + +#define TXGBE_PSR_CL_SWC_CTL_VLD 0x80000000U +#define TXGBE_PSR_CL_SWC_CTL_DST_MSK 0x00000002U +#define TXGBE_PSR_CL_SWC_CTL_KEY_MSK 0x00000001U + + +/* FCoE SOF/EOF */ +#define TXGBE_PSR_FC_EOF 0x15158 +#define TXGBE_PSR_FC_SOF 0x151F8 +/* FCoE Filter Context Registers */ +#define TXGBE_PSR_FC_FLT_CTXT 0x15108 +#define TXGBE_PSR_FC_FLT_CTXT_VALID ((0x1)) /* Filter Context Valid */ +#define TXGBE_PSR_FC_FLT_CTXT_FIRST ((0x1) << 1) /* Filter First */ +#define TXGBE_PSR_FC_FLT_CTXT_WR ((0x1) << 2) /* Write/Read Context */ +#define TXGBE_PSR_FC_FLT_CTXT_SEQID(_v) (((_v) & 0xFF) << 8) /* Sequence ID */ +#define TXGBE_PSR_FC_FLT_CTXT_SEQCNT(_v) (((_v) & 0xFFFF) << 16) /* Seq Count */ + +#define TXGBE_PSR_FC_FLT_RW 0x15110 +#define TXGBE_PSR_FC_FLT_RW_FCSEL(_v) (((_v) & 0x1FF)) /* FC OX_ID: 11 bits */ +#define TXGBE_PSR_FC_FLT_RW_RVALDT ((0x1) << 13) /* Fast Re-Validation */ +#define TXGBE_PSR_FC_FLT_RW_WE ((0x1) << 14) /* Write Enable */ +#define TXGBE_PSR_FC_FLT_RW_RE ((0x1) << 15) /* Read Enable */ + +#define TXGBE_PSR_FC_PARAM 0x151D8 + +/* FCoE Receive Control */ +#define TXGBE_PSR_FC_CTL 0x15100 +#define TXGBE_PSR_FC_CTL_FCOELLI ((0x1)) /* Low latency interrupt */ +#define TXGBE_PSR_FC_CTL_SAVBAD ((0x1) << 1) /* Save Bad Frames */ +#define TXGBE_PSR_FC_CTL_FRSTRDH ((0x1) << 2) /* EN 1st Read Header */ +#define TXGBE_PSR_FC_CTL_LASTSEQH ((0x1) << 3) /* EN Last Header in Seq */ +#define TXGBE_PSR_FC_CTL_ALLH ((0x1) << 4) /* EN All Headers */ +#define TXGBE_PSR_FC_CTL_FRSTSEQH ((0x1) << 5) /* EN 1st Seq. Header */ +#define TXGBE_PSR_FC_CTL_ICRC ((0x1) << 6) /* Ignore Bad FC CRC */ +#define TXGBE_PSR_FC_CTL_FCCRCBO ((0x1) << 7) /* FC CRC Byte Ordering */ +#define TXGBE_PSR_FC_CTL_FCOEVER(_v) (((_v) & 0xF) << 8) /* FCoE Version */ + +/* Management */ +#define TXGBE_PSR_MNG_FIT_CTL 0x15820 +/* Management Bit Fields and Masks */ +#define TXGBE_PSR_MNG_FIT_CTL_MPROXYE 0x40000000U /* Management Proxy Enable*/ +#define TXGBE_PSR_MNG_FIT_CTL_RCV_TCO_EN 0x00020000U /* Rcv TCO packet enable */ +#define TXGBE_PSR_MNG_FIT_CTL_EN_BMC2OS 0x10000000U /* Ena BMC2OS and OS2BMC + *traffic */ +#define TXGBE_PSR_MNG_FIT_CTL_EN_BMC2OS_SHIFT 28 + +#define TXGBE_PSR_MNG_FLEX_SEL 0x1582C +#define TXGBE_PSR_MNG_FLEX_DW_L(_i) (0x15A00 + ((_i) * 16)) +#define TXGBE_PSR_MNG_FLEX_DW_H(_i) (0x15A04 + ((_i) * 16)) +#define TXGBE_PSR_MNG_FLEX_MSK(_i) (0x15A08 + ((_i) * 16)) + +/* mirror */ +#define TXGBE_PSR_MR_CTL(_i) (0x15B00 + ((_i) * 4)) +#define TXGBE_PSR_MR_VLAN_L(_i) (0x15B10 + ((_i) * 8)) +#define TXGBE_PSR_MR_VLAN_H(_i) (0x15B14 + ((_i) * 8)) +#define TXGBE_PSR_MR_VM_L(_i) (0x15B30 + ((_i) * 8)) +#define TXGBE_PSR_MR_VM_H(_i) (0x15B34 + ((_i) * 8)) + +/* 1588 */ +#define TXGBE_PSR_1588_CTL 0x15188 /* Rx Time Sync Control register - RW */ +#define TXGBE_PSR_1588_STMPL 0x151E8 /* Rx timestamp Low - RO */ +#define TXGBE_PSR_1588_STMPH 0x151A4 /* Rx timestamp High - RO */ +#define TXGBE_PSR_1588_ATTRL 0x151A0 /* Rx timestamp attribute low - RO */ +#define TXGBE_PSR_1588_ATTRH 0x151A8 /* Rx timestamp attribute high - RO */ +#define TXGBE_PSR_1588_MSGTYPE 0x15120 /* RX message type register low - RW */ +/* 1588 CTL Bit */ +#define TXGBE_PSR_1588_CTL_VALID 0x00000001U /* Rx timestamp valid */ +#define TXGBE_PSR_1588_CTL_TYPE_MASK 0x0000000EU /* Rx type mask */ +#define TXGBE_PSR_1588_CTL_TYPE_L2_V2 0x00 +#define TXGBE_PSR_1588_CTL_TYPE_L4_V1 0x02 +#define TXGBE_PSR_1588_CTL_TYPE_L2_L4_V2 0x04 +#define TXGBE_PSR_1588_CTL_TYPE_EVENT_V2 0x0A +#define TXGBE_PSR_1588_CTL_ENABLED 0x00000010U /* Rx Timestamp enabled*/ +/* 1588 msg type bit */ +#define TXGBE_PSR_1588_MSGTYPE_V1_CTRLT_MASK 0x000000FFU +#define TXGBE_PSR_1588_MSGTYPE_V1_SYNC_MSG 0x00 +#define TXGBE_PSR_1588_MSGTYPE_V1_DELAY_REQ_MSG 0x01 +#define TXGBE_PSR_1588_MSGTYPE_V1_FOLLOWUP_MSG 0x02 +#define TXGBE_PSR_1588_MSGTYPE_V1_DELAY_RESP_MSG 0x03 +#define TXGBE_PSR_1588_MSGTYPE_V1_MGMT_MSG 0x04 +#define TXGBE_PSR_1588_MSGTYPE_V2_MSGID_MASK 0x0000FF00U +#define TXGBE_PSR_1588_MSGTYPE_V2_SYNC_MSG 0x0000 +#define TXGBE_PSR_1588_MSGTYPE_V2_DELAY_REQ_MSG 0x0100 +#define TXGBE_PSR_1588_MSGTYPE_V2_PDELAY_REQ_MSG 0x0200 +#define TXGBE_PSR_1588_MSGTYPE_V2_PDELAY_RESP_MSG 0x0300 +#define TXGBE_PSR_1588_MSGTYPE_V2_FOLLOWUP_MSG 0x0800 +#define TXGBE_PSR_1588_MSGTYPE_V2_DELAY_RESP_MSG 0x0900 +#define TXGBE_PSR_1588_MSGTYPE_V2_PDELAY_FOLLOWUP_MSG 0x0A00 +#define TXGBE_PSR_1588_MSGTYPE_V2_ANNOUNCE_MSG 0x0B00 +#define TXGBE_PSR_1588_MSGTYPE_V2_SIGNALLING_MSG 0x0C00 +#define TXGBE_PSR_1588_MSGTYPE_V2_MGMT_MSG 0x0D00 + +/* Wake up registers */ +#define TXGBE_PSR_WKUP_CTL 0x15B80 +#define TXGBE_PSR_WKUP_IPV 0x15B84 +#define TXGBE_PSR_LAN_FLEX_SEL 0x15B8C +#define TXGBE_PSR_WKUP_IP4TBL(_i) (0x15BC0 + ((_i) * 4)) +#define TXGBE_PSR_WKUP_IP6TBL(_i) (0x15BE0 + ((_i) * 4)) +#define TXGBE_PSR_LAN_FLEX_DW_L(_i) (0x15C00 + ((_i) * 16)) +#define TXGBE_PSR_LAN_FLEX_DW_H(_i) (0x15C04 + ((_i) * 16)) +#define TXGBE_PSR_LAN_FLEX_MSK(_i) (0x15C08 + ((_i) * 16)) +#define TXGBE_PSR_LAN_FLEX_CTL 0x15CFC +/* Wake Up Filter Control Bit */ +#define TXGBE_PSR_WKUP_CTL_LNKC 0x00000001U /* Link Status Change Wakeup Enable*/ +#define TXGBE_PSR_WKUP_CTL_MAG 0x00000002U /* Magic Packet Wakeup Enable */ +#define TXGBE_PSR_WKUP_CTL_EX 0x00000004U /* Directed Exact Wakeup Enable */ +#define TXGBE_PSR_WKUP_CTL_MC 0x00000008U /* Directed Multicast Wakeup Enable*/ +#define TXGBE_PSR_WKUP_CTL_BC 0x00000010U /* Broadcast Wakeup Enable */ +#define TXGBE_PSR_WKUP_CTL_ARP 0x00000020U /* ARP Request Packet Wakeup Enable*/ +#define TXGBE_PSR_WKUP_CTL_IPV4 0x00000040U /* Directed IPv4 Pkt Wakeup Enable */ +#define TXGBE_PSR_WKUP_CTL_IPV6 0x00000080U /* Directed IPv6 Pkt Wakeup Enable */ +#define TXGBE_PSR_WKUP_CTL_IGNORE_TCO 0x00008000U /* Ignore WakeOn TCO pkts */ +#define TXGBE_PSR_WKUP_CTL_FLX0 0x00010000U /* Flexible Filter 0 Ena */ +#define TXGBE_PSR_WKUP_CTL_FLX1 0x00020000U /* Flexible Filter 1 Ena */ +#define TXGBE_PSR_WKUP_CTL_FLX2 0x00040000U /* Flexible Filter 2 Ena */ +#define TXGBE_PSR_WKUP_CTL_FLX3 0x00080000U /* Flexible Filter 3 Ena */ +#define TXGBE_PSR_WKUP_CTL_FLX4 0x00100000U /* Flexible Filter 4 Ena */ +#define TXGBE_PSR_WKUP_CTL_FLX5 0x00200000U /* Flexible Filter 5 Ena */ +#define TXGBE_PSR_WKUP_CTL_FLX_FILTERS 0x000F0000U /* Mask for 4 flex filters */ +#define TXGBE_PSR_WKUP_CTL_FLX_FILTERS_6 0x003F0000U /* Mask for 6 flex filters*/ +#define TXGBE_PSR_WKUP_CTL_FLX_FILTERS_8 0x00FF0000U /* Mask for 8 flex filters*/ +#define TXGBE_PSR_WKUP_CTL_FW_RST_WK 0x80000000U /* Ena wake on FW reset + * assertion */ +/* Mask for Ext. flex filters */ +#define TXGBE_PSR_WKUP_CTL_EXT_FLX_FILTERS 0x00300000U +#define TXGBE_PSR_WKUP_CTL_ALL_FILTERS 0x000F00FFU /* Mask all 4 flex filters*/ +#define TXGBE_PSR_WKUP_CTL_ALL_FILTERS_6 0x003F00FFU /* Mask all 6 flex filters*/ +#define TXGBE_PSR_WKUP_CTL_ALL_FILTERS_8 0x00FF00FFU /* Mask all 8 flex filters*/ +#define TXGBE_PSR_WKUP_CTL_FLX_OFFSET 16 /* Offset to the Flex Filters bits*/ + +#define TXGBE_PSR_MAX_SZ 0x15020 + +/****************************** TDB ******************************************/ +#define TXGBE_TDB_RFCS 0x1CE00 +#define TXGBE_TDB_PB_SZ(_i) (0x1CC00 + ((_i) * 4)) /* 8 of these */ +#define TXGBE_TDB_MNG_TC 0x1CD10 +#define TXGBE_TDB_PRB_CTL 0x17010 +#define TXGBE_TDB_PBRARB_CTL 0x1CD00 +#define TXGBE_TDB_UP2TC 0x1C800 +#define TXGBE_TDB_PBRARB_CFG(_i) (0x1CD20 + ((_i) * 4)) /* 8 of (0-7) */ + +#define TXGBE_TDB_PB_SZ_20KB 0x00005000U /* 20KB Packet Buffer */ +#define TXGBE_TDB_PB_SZ_40KB 0x0000A000U /* 40KB Packet Buffer */ +#define TXGBE_TDB_PB_SZ_MAX 0x00028000U /* 160KB Packet Buffer */ +#define TXGBE_TXPKT_SIZE_MAX 0xA /* Max Tx Packet size */ +#define TXGBE_MAX_PB 8 + +/****************************** TSEC *****************************************/ +/* Security Control Registers */ +#define TXGBE_TSC_CTL 0x1D000 +#define TXGBE_TSC_ST 0x1D004 +#define TXGBE_TSC_BUF_AF 0x1D008 +#define TXGBE_TSC_BUF_AE 0x1D00C +#define TXGBE_TSC_PRB_CTL 0x1D010 +#define TXGBE_TSC_MIN_IFG 0x1D020 +/* Security Bit Fields and Masks */ +#define TXGBE_TSC_CTL_SECTX_DIS 0x00000001U +#define TXGBE_TSC_CTL_TX_DIS 0x00000002U +#define TXGBE_TSC_CTL_STORE_FORWARD 0x00000004U +#define TXGBE_TSC_CTL_IV_MSK_EN 0x00000008U +#define TXGBE_TSC_ST_SECTX_RDY 0x00000001U +#define TXGBE_TSC_ST_OFF_DIS 0x00000002U +#define TXGBE_TSC_ST_ECC_TXERR 0x00000004U + +/* LinkSec (MacSec) Registers */ +#define TXGBE_TSC_LSEC_CAP 0x1D200 +#define TXGBE_TSC_LSEC_CTL 0x1D204 +#define TXGBE_TSC_LSEC_SCI_L 0x1D208 +#define TXGBE_TSC_LSEC_SCI_H 0x1D20C +#define TXGBE_TSC_LSEC_SA 0x1D210 +#define TXGBE_TSC_LSEC_PKTNUM0 0x1D214 +#define TXGBE_TSC_LSEC_PKTNUM1 0x1D218 +#define TXGBE_TSC_LSEC_KEY0(_n) 0x1D21C +#define TXGBE_TSC_LSEC_KEY1(_n) 0x1D22C +#define TXGBE_TSC_LSEC_UNTAG_PKT 0x1D23C +#define TXGBE_TSC_LSEC_ENC_PKT 0x1D240 +#define TXGBE_TSC_LSEC_PROT_PKT 0x1D244 +#define TXGBE_TSC_LSEC_ENC_OCTET 0x1D248 +#define TXGBE_TSC_LSEC_PROT_OCTET 0x1D24C + +/* IpSec Registers */ +#define TXGBE_TSC_IPS_IDX 0x1D100 +#define TXGBE_TSC_IPS_IDX_WT 0x80000000U +#define TXGBE_TSC_IPS_IDX_RD 0x40000000U +#define TXGBE_TSC_IPS_IDX_SD_IDX 0x0U /* */ +#define TXGBE_TSC_IPS_IDX_EN 0x00000001U +#define TXGBE_TSC_IPS_SALT 0x1D104 +#define TXGBE_TSC_IPS_KEY(i) (0x1D108 + ((i) * 4)) + +/* 1588 */ +#define TXGBE_TSC_1588_CTL 0x1D400 /* Tx Time Sync Control reg */ +#define TXGBE_TSC_1588_STMPL 0x1D404 /* Tx timestamp value Low */ +#define TXGBE_TSC_1588_STMPH 0x1D408 /* Tx timestamp value High */ +#define TXGBE_TSC_1588_SYSTIML 0x1D40C /* System time register Low */ +#define TXGBE_TSC_1588_SYSTIMH 0x1D410 /* System time register High */ +#define TXGBE_TSC_1588_INC 0x1D414 /* Increment attributes reg */ +#define TXGBE_TSC_1588_INC_IV(v) (((v) & 0xFFFFFF)) +#define TXGBE_TSC_1588_INC_IP(v) (((v) & 0xFF) << 24) +#define TXGBE_TSC_1588_INC_IVP(v, p) \ + (((v) & 0xFFFFFF) | TXGBE_TSC_1588_INC_IP(p)) + +#define TXGBE_TSC_1588_ADJL 0x1D418 /* Time Adjustment Offset reg Low */ +#define TXGBE_TSC_1588_ADJH 0x1D41C /* Time Adjustment Offset reg High*/ +/* 1588 fields */ +#define TXGBE_TSC_1588_CTL_VALID 0x00000001U /* Tx timestamp valid */ +#define TXGBE_TSC_1588_CTL_ENABLED 0x00000010U /* Tx timestamping enabled */ + + +/********************************* RSEC **************************************/ +/* general rsec */ +#define TXGBE_RSC_CTL 0x17000 +#define TXGBE_RSC_ST 0x17004 +/* general rsec fields */ +#define TXGBE_RSC_CTL_SECRX_DIS 0x00000001U +#define TXGBE_RSC_CTL_RX_DIS 0x00000002U +#define TXGBE_RSC_CTL_CRC_STRIP 0x00000004U +#define TXGBE_RSC_CTL_IV_MSK_EN 0x00000008U +#define TXGBE_RSC_CTL_SAVE_MAC_ERR 0x00000040U +#define TXGBE_RSC_ST_RSEC_RDY 0x00000001U +#define TXGBE_RSC_ST_RSEC_OFLD_DIS 0x00000002U +#define TXGBE_RSC_ST_ECC_RXERR 0x00000004U + +/* link sec */ +#define TXGBE_RSC_LSEC_CAP 0x17200 +#define TXGBE_RSC_LSEC_CTL 0x17204 +#define TXGBE_RSC_LSEC_SCI_L 0x17208 +#define TXGBE_RSC_LSEC_SCI_H 0x1720C +#define TXGBE_RSC_LSEC_SA0 0x17210 +#define TXGBE_RSC_LSEC_SA1 0x17214 +#define TXGBE_RSC_LSEC_PKNUM0 0x17218 +#define TXGBE_RSC_LSEC_PKNUM1 0x1721C +#define TXGBE_RSC_LSEC_KEY0(_n) 0x17220 +#define TXGBE_RSC_LSEC_KEY1(_n) 0x17230 +#define TXGBE_RSC_LSEC_UNTAG_PKT 0x17240 +#define TXGBE_RSC_LSEC_DEC_OCTET 0x17244 +#define TXGBE_RSC_LSEC_VLD_OCTET 0x17248 +#define TXGBE_RSC_LSEC_BAD_PKT 0x1724C +#define TXGBE_RSC_LSEC_NOSCI_PKT 0x17250 +#define TXGBE_RSC_LSEC_UNSCI_PKT 0x17254 +#define TXGBE_RSC_LSEC_UNCHK_PKT 0x17258 +#define TXGBE_RSC_LSEC_DLY_PKT 0x1725C +#define TXGBE_RSC_LSEC_LATE_PKT 0x17260 +#define TXGBE_RSC_LSEC_OK_PKT(_n) 0x17264 +#define TXGBE_RSC_LSEC_INV_PKT(_n) 0x17274 +#define TXGBE_RSC_LSEC_BADSA_PKT 0x1727C +#define TXGBE_RSC_LSEC_INVSA_PKT 0x17280 + +/* ipsec */ +#define TXGBE_RSC_IPS_IDX 0x17100 +#define TXGBE_RSC_IPS_IDX_WT 0x80000000U +#define TXGBE_RSC_IPS_IDX_RD 0x40000000U +#define TXGBE_RSC_IPS_IDX_TB_IDX 0x0U /* */ +#define TXGBE_RSC_IPS_IDX_TB_IP 0x00000002U +#define TXGBE_RSC_IPS_IDX_TB_SPI 0x00000004U +#define TXGBE_RSC_IPS_IDX_TB_KEY 0x00000006U +#define TXGBE_RSC_IPS_IDX_EN 0x00000001U +#define TXGBE_RSC_IPS_IP(i) (0x17104 + ((i) * 4)) +#define TXGBE_RSC_IPS_SPI 0x17114 +#define TXGBE_RSC_IPS_IP_IDX 0x17118 +#define TXGBE_RSC_IPS_KEY(i) (0x1711C + ((i) * 4)) +#define TXGBE_RSC_IPS_SALT 0x1712C +#define TXGBE_RSC_IPS_MODE 0x17130 +#define TXGBE_RSC_IPS_MODE_IPV6 0x00000010 +#define TXGBE_RSC_IPS_MODE_DEC 0x00000008 +#define TXGBE_RSC_IPS_MODE_ESP 0x00000004 +#define TXGBE_RSC_IPS_MODE_AH 0x00000002 +#define TXGBE_RSC_IPS_MODE_VALID 0x00000001 + +/************************************** ETH PHY ******************************/ +#define TXGBE_XPCS_IDA_ADDR 0x13000 +#define TXGBE_XPCS_IDA_DATA 0x13004 +#define TXGBE_ETHPHY_IDA_ADDR 0x13008 +#define TXGBE_ETHPHY_IDA_DATA 0x1300C + +/************************************** MNG ********************************/ +#define TXGBE_MNG_FW_SM 0x1E000 +#define TXGBE_MNG_SW_SM 0x1E004 +#define TXGBE_MNG_SWFW_SYNC 0x1E008 +#define TXGBE_MNG_MBOX 0x1E100 +#define TXGBE_MNG_MBOX_CTL 0x1E044 +#define TXGBE_MNG_OS2BMC_CNT 0x1E094 +#define TXGBE_MNG_BMC2OS_CNT 0x1E090 + +/* Firmware Semaphore Register */ +#define TXGBE_MNG_FW_SM_MODE_MASK 0xE +#define TXGBE_MNG_FW_SM_TS_ENABLED 0x1 +/* SW Semaphore Register bitmasks */ +#define TXGBE_MNG_SW_SM_SM 0x00000001U /* software Semaphore */ + +/* SW_FW_SYNC definitions */ +#define TXGBE_MNG_SWFW_SYNC_SW_PHY 0x0001 +#define TXGBE_MNG_SWFW_SYNC_SW_FLASH 0x0008 +#define TXGBE_MNG_SWFW_SYNC_SW_MB 0x0004 + +#define TXGBE_MNG_MBOX_CTL_SWRDY 0x1 +#define TXGBE_MNG_MBOX_CTL_SWACK 0x2 +#define TXGBE_MNG_MBOX_CTL_FWRDY 0x4 +#define TXGBE_MNG_MBOX_CTL_FWACK 0x8 + +/************************************* ETH MAC *****************************/ +#define TXGBE_MAC_TX_CFG 0x11000 +#define TXGBE_MAC_RX_CFG 0x11004 +#define TXGBE_MAC_PKT_FLT 0x11008 +#define TXGBE_MAC_PKT_FLT_PR (0x1) /* promiscuous mode */ +#define TXGBE_MAC_PKT_FLT_RA (0x80000000) /* receive all */ +#define TXGBE_MAC_WDG_TIMEOUT 0x1100C +#define TXGBE_MAC_RX_FLOW_CTRL 0x11090 +#define TXGBE_MAC_ADDRESS0_HIGH 0x11300 +#define TXGBE_MAC_ADDRESS0_LOW 0x11304 + +#define TXGBE_MAC_TX_CFG_TE 0x00000001U +#define TXGBE_MAC_TX_CFG_SPEED_MASK 0x60000000U +#define TXGBE_MAC_TX_CFG_SPEED_10G 0x00000000U +#define TXGBE_MAC_TX_CFG_SPEED_1G 0x60000000U +#define TXGBE_MAC_RX_CFG_RE 0x00000001U +#define TXGBE_MAC_RX_CFG_JE 0x00000100U +#define TXGBE_MAC_RX_CFG_LM 0x00000400U +#define TXGBE_MAC_WDG_TIMEOUT_PWE 0x00000100U +#define TXGBE_MAC_WDG_TIMEOUT_WTO_MASK 0x0000000FU +#define TXGBE_MAC_WDG_TIMEOUT_WTO_DELTA 2 + +#define TXGBE_MAC_RX_FLOW_CTRL_RFE 0x00000001U /* receive fc enable */ +#define TXGBE_MAC_RX_FLOW_CTRL_PFCE 0x00000100U /* pfc enable */ + +#define TXGBE_MSCA 0x11200 +#define TXGBE_MSCA_RA(v) ((0xFFFF & (v))) +#define TXGBE_MSCA_PA(v) ((0x1F & (v)) << 16) +#define TXGBE_MSCA_DA(v) ((0x1F & (v)) << 21) +#define TXGBE_MSCC 0x11204 +#define TXGBE_MSCC_DATA(v) ((0xFFFF & (v))) +#define TXGBE_MSCC_CMD(v) ((0x3 & (v)) << 16) +enum TXGBE_MSCA_CMD_value { + TXGBE_MSCA_CMD_RSV = 0, + TXGBE_MSCA_CMD_WRITE, + TXGBE_MSCA_CMD_POST_READ, + TXGBE_MSCA_CMD_READ, +}; +#define TXGBE_MSCC_SADDR ((0x1U) << 18) +#define TXGBE_MSCC_CR(v) ((0x8U & (v)) << 19) +#define TXGBE_MSCC_BUSY ((0x1U) << 22) + +/* EEE registers */ + +/* statistic */ +#define TXGBE_MAC_LXONRXC 0x11E0C +#define TXGBE_MAC_LXOFFRXC 0x11988 +#define TXGBE_MAC_PXONRXC(_i) (0x11E30 + ((_i) * 4)) /* 8 of these */ +#define TXGBE_MAC_PXOFFRXC 0x119DC +#define TXGBE_RX_BC_FRAMES_GOOD_LOW 0x11918 +#define TXGBE_RX_CRC_ERROR_FRAMES_LOW 0x11928 +#define TXGBE_RX_LEN_ERROR_FRAMES_LOW 0x11978 +#define TXGBE_RX_UNDERSIZE_FRAMES_GOOD 0x11938 +#define TXGBE_RX_OVERSIZE_FRAMES_GOOD 0x1193C +#define TXGBE_RX_FRAME_CNT_GOOD_BAD_LOW 0x11900 +#define TXGBE_TX_FRAME_CNT_GOOD_BAD_LOW 0x1181C +#define TXGBE_TX_MC_FRAMES_GOOD_LOW 0x1182C +#define TXGBE_TX_BC_FRAMES_GOOD_LOW 0x11824 +#define TXGBE_MMC_CONTROL 0x11800 +#define TXGBE_MMC_CONTROL_RSTONRD 0x4 /* reset on read */ +#define TXGBE_MMC_CONTROL_UP 0x700 + + +/********************************* BAR registers ***************************/ +/* Interrupt Registers */ +#define TXGBE_BME_CTL 0x12020 +#define TXGBE_PX_MISC_IC 0x100 +#define TXGBE_PX_MISC_ICS 0x104 +#define TXGBE_PX_MISC_IEN 0x108 +#define TXGBE_PX_MISC_IVAR 0x4FC +#define TXGBE_PX_GPIE 0x118 +#define TXGBE_PX_ISB_ADDR_L 0x160 +#define TXGBE_PX_ISB_ADDR_H 0x164 +#define TXGBE_PX_TCP_TIMER 0x170 +#define TXGBE_PX_ITRSEL 0x180 +#define TXGBE_PX_IC(_i) (0x120 + (_i) * 4) +#define TXGBE_PX_ICS(_i) (0x130 + (_i) * 4) +#define TXGBE_PX_IMS(_i) (0x140 + (_i) * 4) +#define TXGBE_PX_IMC(_i) (0x150 + (_i) * 4) +#define TXGBE_PX_IVAR(_i) (0x500 + (_i) * 4) +#define TXGBE_PX_ITR(_i) (0x200 + (_i) * 4) +#define TXGBE_PX_TRANSACTION_PENDING 0x168 +#define TXGBE_PX_INTA 0x110 + +/* Interrupt register bitmasks */ +/* Extended Interrupt Cause Read */ +#define TXGBE_PX_MISC_IC_ETH_LKDN 0x00000100U /* eth link down */ +#define TXGBE_PX_MISC_IC_DEV_RST 0x00000400U /* device reset event */ +#define TXGBE_PX_MISC_IC_TIMESYNC 0x00000800U /* time sync */ +#define TXGBE_PX_MISC_IC_STALL 0x00001000U /* trans or recv path is + * stalled */ +#define TXGBE_PX_MISC_IC_LINKSEC 0x00002000U /* Tx LinkSec require key + * exchange */ +#define TXGBE_PX_MISC_IC_RX_MISS 0x00004000U /* Packet Buffer Overrun */ +#define TXGBE_PX_MISC_IC_FLOW_DIR 0x00008000U /* FDir Exception */ +#define TXGBE_PX_MISC_IC_I2C 0x00010000U /* I2C interrupt */ +#define TXGBE_PX_MISC_IC_ETH_EVENT 0x00020000U /* err reported by MAC except + * eth link down */ +#define TXGBE_PX_MISC_IC_ETH_LK 0x00040000U /* link up */ +#define TXGBE_PX_MISC_IC_ETH_AN 0x00080000U /* link auto-nego done */ +#define TXGBE_PX_MISC_IC_INT_ERR 0x00100000U /* integrity error */ +#define TXGBE_PX_MISC_IC_SPI 0x00200000U /* SPI interface */ +#define TXGBE_PX_MISC_IC_VF_MBOX 0x00800000U /* VF-PF message box */ +#define TXGBE_PX_MISC_IC_GPIO 0x04000000U /* GPIO interrupt */ +#define TXGBE_PX_MISC_IC_PCIE_REQ_ERR 0x08000000U /* pcie request error int */ +#define TXGBE_PX_MISC_IC_OVER_HEAT 0x10000000U /* overheat detection */ +#define TXGBE_PX_MISC_IC_PROBE_MATCH 0x20000000U /* probe match */ +#define TXGBE_PX_MISC_IC_MNG_HOST_MBOX 0x40000000U /* mng mailbox */ +#define TXGBE_PX_MISC_IC_TIMER 0x80000000U /* tcp timer */ + +/* Extended Interrupt Cause Set */ +#define TXGBE_PX_MISC_ICS_ETH_LKDN 0x00000100U +#define TXGBE_PX_MISC_ICS_DEV_RST 0x00000400U +#define TXGBE_PX_MISC_ICS_TIMESYNC 0x00000800U +#define TXGBE_PX_MISC_ICS_STALL 0x00001000U +#define TXGBE_PX_MISC_ICS_LINKSEC 0x00002000U +#define TXGBE_PX_MISC_ICS_RX_MISS 0x00004000U +#define TXGBE_PX_MISC_ICS_FLOW_DIR 0x00008000U +#define TXGBE_PX_MISC_ICS_I2C 0x00010000U +#define TXGBE_PX_MISC_ICS_ETH_EVENT 0x00020000U +#define TXGBE_PX_MISC_ICS_ETH_LK 0x00040000U +#define TXGBE_PX_MISC_ICS_ETH_AN 0x00080000U +#define TXGBE_PX_MISC_ICS_INT_ERR 0x00100000U +#define TXGBE_PX_MISC_ICS_SPI 0x00200000U +#define TXGBE_PX_MISC_ICS_VF_MBOX 0x00800000U +#define TXGBE_PX_MISC_ICS_GPIO 0x04000000U +#define TXGBE_PX_MISC_ICS_PCIE_REQ_ERR 0x08000000U +#define TXGBE_PX_MISC_ICS_OVER_HEAT 0x10000000U +#define TXGBE_PX_MISC_ICS_PROBE_MATCH 0x20000000U +#define TXGBE_PX_MISC_ICS_MNG_HOST_MBOX 0x40000000U +#define TXGBE_PX_MISC_ICS_TIMER 0x80000000U + +/* Extended Interrupt Enable Set */ +#define TXGBE_PX_MISC_IEN_ETH_LKDN 0x00000100U +#define TXGBE_PX_MISC_IEN_DEV_RST 0x00000400U +#define TXGBE_PX_MISC_IEN_TIMESYNC 0x00000800U +#define TXGBE_PX_MISC_IEN_STALL 0x00001000U +#define TXGBE_PX_MISC_IEN_LINKSEC 0x00002000U +#define TXGBE_PX_MISC_IEN_RX_MISS 0x00004000U +#define TXGBE_PX_MISC_IEN_FLOW_DIR 0x00008000U +#define TXGBE_PX_MISC_IEN_I2C 0x00010000U +#define TXGBE_PX_MISC_IEN_ETH_EVENT 0x00020000U +#define TXGBE_PX_MISC_IEN_ETH_LK 0x00040000U +#define TXGBE_PX_MISC_IEN_ETH_AN 0x00080000U +#define TXGBE_PX_MISC_IEN_INT_ERR 0x00100000U +#define TXGBE_PX_MISC_IEN_SPI 0x00200000U +#define TXGBE_PX_MISC_IEN_VF_MBOX 0x00800000U +#define TXGBE_PX_MISC_IEN_GPIO 0x04000000U +#define TXGBE_PX_MISC_IEN_PCIE_REQ_ERR 0x08000000U +#define TXGBE_PX_MISC_IEN_OVER_HEAT 0x10000000U +#define TXGBE_PX_MISC_IEN_PROBE_MATCH 0x20000000U +#define TXGBE_PX_MISC_IEN_MNG_HOST_MBOX 0x40000000U +#define TXGBE_PX_MISC_IEN_TIMER 0x80000000U + +#define TXGBE_PX_MISC_IEN_MASK ( \ + TXGBE_PX_MISC_IEN_ETH_LKDN| \ + TXGBE_PX_MISC_IEN_DEV_RST | \ + TXGBE_PX_MISC_IEN_ETH_EVENT | \ + TXGBE_PX_MISC_IEN_ETH_LK | \ + TXGBE_PX_MISC_IEN_ETH_AN | \ + TXGBE_PX_MISC_IEN_INT_ERR | \ + TXGBE_PX_MISC_IEN_VF_MBOX | \ + TXGBE_PX_MISC_IEN_GPIO | \ + TXGBE_PX_MISC_IEN_MNG_HOST_MBOX | \ + TXGBE_PX_MISC_IEN_STALL | \ + TXGBE_PX_MISC_IEN_PCIE_REQ_ERR | \ + TXGBE_PX_MISC_IEN_TIMER) + +/* General purpose Interrupt Enable */ +#define TXGBE_PX_GPIE_MODEL 0x00000001U +#define TXGBE_PX_GPIE_IMEN 0x00000002U +#define TXGBE_PX_GPIE_LL_INTERVAL 0x000000F0U +#define TXGBE_PX_GPIE_RSC_DELAY 0x00000700U + +/* Interrupt Vector Allocation Registers */ +#define TXGBE_PX_IVAR_REG_NUM 64 +#define TXGBE_PX_IVAR_ALLOC_VAL 0x80 /* Interrupt Allocation valid */ + +#define TXGBE_MAX_INT_RATE 500000 +#define TXGBE_MIN_INT_RATE 980 +#define TXGBE_MAX_EITR 0x00000FF8U +#define TXGBE_MIN_EITR 8 +#define TXGBE_PX_ITR_ITR_INT_MASK 0x00000FF8U +#define TXGBE_PX_ITR_LLI_CREDIT 0x001f0000U +#define TXGBE_PX_ITR_LLI_MOD 0x00008000U +#define TXGBE_PX_ITR_CNT_WDIS 0x80000000U +#define TXGBE_PX_ITR_ITR_CNT 0x0FE00000U + +/* transmit DMA Registers */ +#define TXGBE_PX_TR_BAL(_i) (0x03000 + ((_i) * 0x40)) +#define TXGBE_PX_TR_BAH(_i) (0x03004 + ((_i) * 0x40)) +#define TXGBE_PX_TR_WP(_i) (0x03008 + ((_i) * 0x40)) +#define TXGBE_PX_TR_RP(_i) (0x0300C + ((_i) * 0x40)) +#define TXGBE_PX_TR_CFG(_i) (0x03010 + ((_i) * 0x40)) +/* Transmit Config masks */ +#define TXGBE_PX_TR_CFG_ENABLE (1) /* Ena specific Tx Queue */ +#define TXGBE_PX_TR_CFG_TR_SIZE_SHIFT 1 /* tx desc number per ring */ +#define TXGBE_PX_TR_CFG_SWFLSH (1 << 26) /* Tx Desc. wr-bk flushing */ +#define TXGBE_PX_TR_CFG_WTHRESH_SHIFT 16 /* shift to WTHRESH bits */ +#define TXGBE_PX_TR_CFG_THRE_SHIFT 8 + + +#define TXGBE_PX_TR_RPn(q_per_pool, vf_number, vf_q_index) \ + (TXGBE_PX_TR_RP((q_per_pool)*(vf_number) + (vf_q_index))) +#define TXGBE_PX_TR_WPn(q_per_pool, vf_number, vf_q_index) \ + (TXGBE_PX_TR_WP((q_per_pool)*(vf_number) + (vf_q_index))) + +/* Receive DMA Registers */ +#define TXGBE_PX_RR_BAL(_i) (0x01000 + ((_i) * 0x40)) +#define TXGBE_PX_RR_BAH(_i) (0x01004 + ((_i) * 0x40)) +#define TXGBE_PX_RR_WP(_i) (0x01008 + ((_i) * 0x40)) +#define TXGBE_PX_RR_RP(_i) (0x0100C + ((_i) * 0x40)) +#define TXGBE_PX_RR_CFG(_i) (0x01010 + ((_i) * 0x40)) +/* PX_RR_CFG bit definitions */ +#define TXGBE_PX_RR_CFG_RR_SIZE_SHIFT 1 +#define TXGBE_PX_RR_CFG_BSIZEPKT_SHIFT 2 /* so many KBs */ +#define TXGBE_PX_RR_CFG_BSIZEHDRSIZE_SHIFT 6 /* 64byte resolution (>> 6) + * + at bit 8 offset (<< 12) + * = (<< 6) + */ +#define TXGBE_PX_RR_CFG_DROP_EN 0x40000000U +#define TXGBE_PX_RR_CFG_VLAN 0x80000000U +#define TXGBE_PX_RR_CFG_RSC 0x20000000U +#define TXGBE_PX_RR_CFG_CNTAG 0x10000000U +#define TXGBE_PX_RR_CFG_RSC_CNT_MD 0x08000000U +#define TXGBE_PX_RR_CFG_SPLIT_MODE 0x04000000U +#define TXGBE_PX_RR_CFG_STALL 0x02000000U +#define TXGBE_PX_RR_CFG_MAX_RSCBUF_1 0x00000000U +#define TXGBE_PX_RR_CFG_MAX_RSCBUF_4 0x00800000U +#define TXGBE_PX_RR_CFG_MAX_RSCBUF_8 0x01000000U +#define TXGBE_PX_RR_CFG_MAX_RSCBUF_16 0x01800000U +#define TXGBE_PX_RR_CFG_RR_THER 0x00070000U +#define TXGBE_PX_RR_CFG_RR_THER_SHIFT 16 + +#define TXGBE_PX_RR_CFG_RR_HDR_SZ 0x0000F000U +#define TXGBE_PX_RR_CFG_RR_BUF_SZ 0x00000F00U +#define TXGBE_PX_RR_CFG_RR_SZ 0x0000007EU +#define TXGBE_PX_RR_CFG_RR_EN 0x00000001U + +/* statistic */ +#define TXGBE_PX_MPRC(_i) (0x1020 + ((_i) * 64)) +#define TXGBE_VX_GPRC(_i) (0x01014 + (0x40 * (_i))) +#define TXGBE_VX_GPTC(_i) (0x03014 + (0x40 * (_i))) +#define TXGBE_VX_GORC_LSB(_i) (0x01018 + (0x40 * (_i))) +#define TXGBE_VX_GORC_MSB(_i) (0x0101C + (0x40 * (_i))) +#define TXGBE_VX_GOTC_LSB(_i) (0x03018 + (0x40 * (_i))) +#define TXGBE_VX_GOTC_MSB(_i) (0x0301C + (0x40 * (_i))) +#define TXGBE_VX_MPRC(_i) (0x01020 + (0x40 * (_i))) + +#define TXGBE_PX_GPRC 0x12504 +#define TXGBE_PX_GPTC 0x18308 + +#define TXGBE_PX_GORC_LSB 0x12508 +#define TXGBE_PX_GORC_MSB 0x1250C + +#define TXGBE_PX_GOTC_LSB 0x1830C +#define TXGBE_PX_GOTC_MSB 0x18310 + +/************************************* Stats registers ************************/ +#define TXGBE_FCCRC 0x15160 /* Num of Good Eth CRC w/ Bad FC CRC */ +#define TXGBE_FCOERPDC 0x12514 /* FCoE Rx Packets Dropped Count */ +#define TXGBE_FCLAST 0x12518 /* FCoE Last Error Count */ +#define TXGBE_FCOEPRC 0x15164 /* Number of FCoE Packets Received */ +#define TXGBE_FCOEDWRC 0x15168 /* Number of FCoE DWords Received */ +#define TXGBE_FCOEPTC 0x18318 /* Number of FCoE Packets Transmitted */ +#define TXGBE_FCOEDWTC 0x1831C /* Number of FCoE DWords Transmitted */ + +/*************************** Flash region definition *************************/ +/* EEC Register */ +#define TXGBE_EEC_SK 0x00000001U /* EEPROM Clock */ +#define TXGBE_EEC_CS 0x00000002U /* EEPROM Chip Select */ +#define TXGBE_EEC_DI 0x00000004U /* EEPROM Data In */ +#define TXGBE_EEC_DO 0x00000008U /* EEPROM Data Out */ +#define TXGBE_EEC_FWE_MASK 0x00000030U /* FLASH Write Enable */ +#define TXGBE_EEC_FWE_DIS 0x00000010U /* Disable FLASH writes */ +#define TXGBE_EEC_FWE_EN 0x00000020U /* Enable FLASH writes */ +#define TXGBE_EEC_FWE_SHIFT 4 +#define TXGBE_EEC_REQ 0x00000040U /* EEPROM Access Request */ +#define TXGBE_EEC_GNT 0x00000080U /* EEPROM Access Grant */ +#define TXGBE_EEC_PRES 0x00000100U /* EEPROM Present */ +#define TXGBE_EEC_ARD 0x00000200U /* EEPROM Auto Read Done */ +#define TXGBE_EEC_FLUP 0x00800000U /* Flash update command */ +#define TXGBE_EEC_SEC1VAL 0x02000000U /* Sector 1 Valid */ +#define TXGBE_EEC_FLUDONE 0x04000000U /* Flash update done */ +/* EEPROM Addressing bits based on type (0-small, 1-large) */ +#define TXGBE_EEC_ADDR_SIZE 0x00000400U +#define TXGBE_EEC_SIZE 0x00007800U /* EEPROM Size */ +#define TXGBE_EERD_MAX_ADDR 0x00003FFFU /* EERD alows 14 bits for addr. */ + +#define TXGBE_EEC_SIZE_SHIFT 11 +#define TXGBE_EEPROM_WORD_SIZE_SHIFT 6 +#define TXGBE_EEPROM_OPCODE_BITS 8 + +/* FLA Register */ +#define TXGBE_FLA_LOCKED 0x00000040U + +/* Part Number String Length */ +#define TXGBE_PBANUM_LENGTH 32 + +/* Checksum and EEPROM pointers */ +#define TXGBE_PBANUM_PTR_GUARD 0xFAFA +#define TXGBE_EEPROM_CHECKSUM 0x2F +#define TXGBE_EEPROM_SUM 0xBABA +#define TXGBE_ATLAS0_CONFIG_PTR 0x04 +#define TXGBE_PHY_PTR 0x04 +#define TXGBE_ATLAS1_CONFIG_PTR 0x05 +#define TXGBE_OPTION_ROM_PTR 0x05 +#define TXGBE_PCIE_GENERAL_PTR 0x06 +#define TXGBE_PCIE_CONFIG0_PTR 0x07 +#define TXGBE_PCIE_CONFIG1_PTR 0x08 +#define TXGBE_CORE0_PTR 0x09 +#define TXGBE_CORE1_PTR 0x0A +#define TXGBE_MAC0_PTR 0x0B +#define TXGBE_MAC1_PTR 0x0C +#define TXGBE_CSR0_CONFIG_PTR 0x0D +#define TXGBE_CSR1_CONFIG_PTR 0x0E +#define TXGBE_PCIE_ANALOG_PTR 0x02 +#define TXGBE_SHADOW_RAM_SIZE 0x4000 +#define TXGBE_TXGBE_PCIE_GENERAL_SIZE 0x24 +#define TXGBE_PCIE_CONFIG_SIZE 0x08 +#define TXGBE_EEPROM_LAST_WORD 0x800 +#define TXGBE_FW_PTR 0x0F +#define TXGBE_PBANUM0_PTR 0x05 +#define TXGBE_PBANUM1_PTR 0x06 +#define TXGBE_ALT_MAC_ADDR_PTR 0x37 +#define TXGBE_FREE_SPACE_PTR 0x3E +#define TXGBE_SW_REGION_PTR 0x1C + +#define TXGBE_SAN_MAC_ADDR_PTR 0x18 +#define TXGBE_DEVICE_CAPS 0x1C +#define TXGBE_EEPROM_VERSION_L 0x1D +#define TXGBE_EEPROM_VERSION_H 0x1E +#define TXGBE_ISCSI_BOOT_CONFIG 0x07 + +#define TXGBE_SERIAL_NUMBER_MAC_ADDR 0x11 +#define TXGBE_MAX_MSIX_VECTORS_SAPPHIRE 0x40 + +/* MSI-X capability fields masks */ +#define TXGBE_PCIE_MSIX_TBL_SZ_MASK 0x7FF + +/* Legacy EEPROM word offsets */ +#define TXGBE_ISCSI_BOOT_CAPS 0x0033 +#define TXGBE_ISCSI_SETUP_PORT_0 0x0030 +#define TXGBE_ISCSI_SETUP_PORT_1 0x0034 + +/* EEPROM Commands - SPI */ +#define TXGBE_EEPROM_MAX_RETRY_SPI 5000 /* Max wait 5ms for RDY signal */ +#define TXGBE_EEPROM_STATUS_RDY_SPI 0x01 +#define TXGBE_EEPROM_READ_OPCODE_SPI 0x03 /* EEPROM read opcode */ +#define TXGBE_EEPROM_WRITE_OPCODE_SPI 0x02 /* EEPROM write opcode */ +#define TXGBE_EEPROM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = addr bit-8 */ +#define TXGBE_EEPROM_WREN_OPCODE_SPI 0x06 /* EEPROM set Write Ena latch */ +/* EEPROM reset Write Enable latch */ +#define TXGBE_EEPROM_WRDI_OPCODE_SPI 0x04 +#define TXGBE_EEPROM_RDSR_OPCODE_SPI 0x05 /* EEPROM read Status reg */ +#define TXGBE_EEPROM_WRSR_OPCODE_SPI 0x01 /* EEPROM write Status reg */ +#define TXGBE_EEPROM_ERASE4K_OPCODE_SPI 0x20 /* EEPROM ERASE 4KB */ +#define TXGBE_EEPROM_ERASE64K_OPCODE_SPI 0xD8 /* EEPROM ERASE 64KB */ +#define TXGBE_EEPROM_ERASE256_OPCODE_SPI 0xDB /* EEPROM ERASE 256B */ + +/* EEPROM Read Register */ +#define TXGBE_EEPROM_RW_REG_DATA 16 /* data offset in EEPROM read reg */ +#define TXGBE_EEPROM_RW_REG_DONE 2 /* Offset to READ done bit */ +#define TXGBE_EEPROM_RW_REG_START 1 /* First bit to start operation */ +#define TXGBE_EEPROM_RW_ADDR_SHIFT 2 /* Shift to the address bits */ +#define TXGBE_NVM_POLL_WRITE 1 /* Flag for polling for wr complete */ +#define TXGBE_NVM_POLL_READ 0 /* Flag for polling for rd complete */ + +#define NVM_INIT_CTRL_3 0x38 +#define NVM_INIT_CTRL_3_LPLU 0x8 +#define NVM_INIT_CTRL_3_D10GMP_PORT0 0x40 +#define NVM_INIT_CTRL_3_D10GMP_PORT1 0x100 + +#define TXGBE_ETH_LENGTH_OF_ADDRESS 6 + +#define TXGBE_EEPROM_PAGE_SIZE_MAX 128 +#define TXGBE_EEPROM_RD_BUFFER_MAX_COUNT 256 /* words rd in burst */ +#define TXGBE_EEPROM_WR_BUFFER_MAX_COUNT 256 /* words wr in burst */ +#define TXGBE_EEPROM_CTRL_2 1 /* EEPROM CTRL word 2 */ +#define TXGBE_EEPROM_CCD_BIT 2 + +#ifndef TXGBE_EEPROM_GRANT_ATTEMPTS +#define TXGBE_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM attempts to gain grant */ +#endif + +#ifndef TXGBE_EERD_EEWR_ATTEMPTS +/* Number of 5 microseconds we wait for EERD read and + * EERW write to complete */ +#define TXGBE_EERD_EEWR_ATTEMPTS 100000 +#endif + +#ifndef TXGBE_FLUDONE_ATTEMPTS +/* # attempts we wait for flush update to complete */ +#define TXGBE_FLUDONE_ATTEMPTS 20000 +#endif + +#define TXGBE_PCIE_CTRL2 0x5 /* PCIe Control 2 Offset */ +#define TXGBE_PCIE_CTRL2_DUMMY_ENABLE 0x8 /* Dummy Function Enable */ +#define TXGBE_PCIE_CTRL2_LAN_DISABLE 0x2 /* LAN PCI Disable */ +#define TXGBE_PCIE_CTRL2_DISABLE_SELECT 0x1 /* LAN Disable Select */ + +#define TXGBE_SAN_MAC_ADDR_PORT0_OFFSET 0x0 +#define TXGBE_SAN_MAC_ADDR_PORT1_OFFSET 0x3 +#define TXGBE_DEVICE_CAPS_ALLOW_ANY_SFP 0x1 +#define TXGBE_DEVICE_CAPS_FCOE_OFFLOADS 0x2 +#define TXGBE_FW_LESM_PARAMETERS_PTR 0x2 +#define TXGBE_FW_LESM_STATE_1 0x1 +#define TXGBE_FW_LESM_STATE_ENABLED 0x8000 /* LESM Enable bit */ +#define TXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR 0x4 +#define TXGBE_FW_PATCH_VERSION_4 0x7 +#define TXGBE_FCOE_IBA_CAPS_BLK_PTR 0x33 /* iSCSI/FCOE block */ +#define TXGBE_FCOE_IBA_CAPS_FCOE 0x20 /* FCOE flags */ +#define TXGBE_ISCSI_FCOE_BLK_PTR 0x17 /* iSCSI/FCOE block */ +#define TXGBE_ISCSI_FCOE_FLAGS_OFFSET 0x0 /* FCOE flags */ +#define TXGBE_ISCSI_FCOE_FLAGS_ENABLE 0x1 /* FCOE flags enable bit */ +#define TXGBE_ALT_SAN_MAC_ADDR_BLK_PTR 0x17 /* Alt. SAN MAC block */ +#define TXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET 0x0 /* Alt SAN MAC capability */ +#define TXGBE_ALT_SAN_MAC_ADDR_PORT0_OFFSET 0x1 /* Alt SAN MAC 0 offset */ +#define TXGBE_ALT_SAN_MAC_ADDR_PORT1_OFFSET 0x4 /* Alt SAN MAC 1 offset */ +#define TXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET 0x7 /* Alt WWNN prefix offset */ +#define TXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET 0x8 /* Alt WWPN prefix offset */ +#define TXGBE_ALT_SAN_MAC_ADDR_CAPS_SANMAC 0x0 /* Alt SAN MAC exists */ +#define TXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN 0x1 /* Alt WWN base exists */ +#define TXGBE_DEVICE_CAPS_WOL_PORT0_1 0x4 /* WoL supported on ports 0 & 1 */ +#define TXGBE_DEVICE_CAPS_WOL_PORT0 0x8 /* WoL supported on port 0 */ +#define TXGBE_DEVICE_CAPS_WOL_MASK 0xC /* Mask for WoL capabilities */ + +/******************************** PCI Bus Info *******************************/ +#define TXGBE_PCI_DEVICE_STATUS 0xAA +#define TXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING 0x0020 +#define TXGBE_PCI_LINK_STATUS 0xB2 +#define TXGBE_PCI_DEVICE_CONTROL2 0xC8 +#define TXGBE_PCI_LINK_WIDTH 0x3F0 +#define TXGBE_PCI_LINK_WIDTH_1 0x10 +#define TXGBE_PCI_LINK_WIDTH_2 0x20 +#define TXGBE_PCI_LINK_WIDTH_4 0x40 +#define TXGBE_PCI_LINK_WIDTH_8 0x80 +#define TXGBE_PCI_LINK_SPEED 0xF +#define TXGBE_PCI_LINK_SPEED_2500 0x1 +#define TXGBE_PCI_LINK_SPEED_5000 0x2 +#define TXGBE_PCI_LINK_SPEED_8000 0x3 +#define TXGBE_PCI_HEADER_TYPE_REGISTER 0x0E +#define TXGBE_PCI_HEADER_TYPE_MULTIFUNC 0x80 +#define TXGBE_PCI_DEVICE_CONTROL2_16ms 0x0005 + +#define TXGBE_PCIDEVCTRL2_RELAX_ORDER_OFFSET 4 +#define TXGBE_PCIDEVCTRL2_RELAX_ORDER_MASK \ + (0x0001 << TXGBE_PCIDEVCTRL2_RELAX_ORDER_OFFSET) +#define TXGBE_PCIDEVCTRL2_RELAX_ORDER_ENABLE \ + (0x01 << TXGBE_PCIDEVCTRL2_RELAX_ORDER_OFFSET) + +#define TXGBE_PCIDEVCTRL2_TIMEO_MASK 0xf +#define TXGBE_PCIDEVCTRL2_16_32ms_def 0x0 +#define TXGBE_PCIDEVCTRL2_50_100us 0x1 +#define TXGBE_PCIDEVCTRL2_1_2ms 0x2 +#define TXGBE_PCIDEVCTRL2_16_32ms 0x5 +#define TXGBE_PCIDEVCTRL2_65_130ms 0x6 +#define TXGBE_PCIDEVCTRL2_260_520ms 0x9 +#define TXGBE_PCIDEVCTRL2_1_2s 0xa +#define TXGBE_PCIDEVCTRL2_4_8s 0xd +#define TXGBE_PCIDEVCTRL2_17_34s 0xe + + +/******************* Receive Descriptor bit definitions **********************/ +#define TXGBE_RXD_IPSEC_STATUS_SECP 0x00020000U +#define TXGBE_RXD_IPSEC_ERROR_INVALID_PROTOCOL 0x08000000U +#define TXGBE_RXD_IPSEC_ERROR_INVALID_LENGTH 0x10000000U +#define TXGBE_RXD_IPSEC_ERROR_AUTH_FAILED 0x18000000U +#define TXGBE_RXD_IPSEC_ERROR_BIT_MASK 0x18000000U + +#define TXGBE_RXD_NEXTP_MASK 0x000FFFF0U /* Next Descriptor Index */ +#define TXGBE_RXD_NEXTP_SHIFT 0x00000004U +#define TXGBE_RXD_STAT_MASK 0x000fffffU /* Stat/NEXTP: bit 0-19 */ +#define TXGBE_RXD_STAT_DD 0x00000001U /* Done */ +#define TXGBE_RXD_STAT_EOP 0x00000002U /* End of Packet */ +#define TXGBE_RXD_STAT_CLASS_ID_MASK 0x0000001CU +#define TXGBE_RXD_STAT_CLASS_ID_TC_RSS 0x00000000U +#define TXGBE_RXD_STAT_CLASS_ID_FLM 0x00000004U /* FDir Match */ +#define TXGBE_RXD_STAT_CLASS_ID_SYN 0x00000008U +#define TXGBE_RXD_STAT_CLASS_ID_5_TUPLE 0x0000000CU +#define TXGBE_RXD_STAT_CLASS_ID_L2_ETYPE 0x00000010U +#define TXGBE_RXD_STAT_VP 0x00000020U /* IEEE VLAN Pkt */ +#define TXGBE_RXD_STAT_UDPCS 0x00000040U /* UDP xsum calculated */ +#define TXGBE_RXD_STAT_L4CS 0x00000080U /* L4 xsum calculated */ +#define TXGBE_RXD_STAT_IPCS 0x00000100U /* IP xsum calculated */ +#define TXGBE_RXD_STAT_PIF 0x00000200U /* passed in-exact filter */ +#define TXGBE_RXD_STAT_OUTERIPCS 0x00000400U /* Cloud IP xsum calculated*/ +#define TXGBE_RXD_STAT_VEXT 0x00000800U /* 1st VLAN found */ +#define TXGBE_RXD_STAT_LLINT 0x00002000U /* Pkt caused Low Latency + * Int */ +#define TXGBE_RXD_STAT_TS 0x00004000U /* IEEE1588 Time Stamp */ +#define TXGBE_RXD_STAT_SECP 0x00008000U /* Security Processing */ +#define TXGBE_RXD_STAT_LB 0x00010000U /* Loopback Status */ +#define TXGBE_RXD_STAT_FCEOFS 0x00020000U /* FCoE EOF/SOF Stat */ +#define TXGBE_RXD_STAT_FCSTAT 0x000C0000U /* FCoE Pkt Stat */ +#define TXGBE_RXD_STAT_FCSTAT_NOMTCH 0x00000000U /* 00: No Ctxt Match */ +#define TXGBE_RXD_STAT_FCSTAT_NODDP 0x00040000U /* 01: Ctxt w/o DDP */ +#define TXGBE_RXD_STAT_FCSTAT_FCPRSP 0x00080000U /* 10: Recv. FCP_RSP */ +#define TXGBE_RXD_STAT_FCSTAT_DDP 0x000C0000U /* 11: Ctxt w/ DDP */ + +#define TXGBE_RXD_ERR_MASK 0xfff00000U /* RDESC.ERRORS mask */ +#define TXGBE_RXD_ERR_SHIFT 20 /* RDESC.ERRORS shift */ +#define TXGBE_RXD_ERR_FCEOFE 0x80000000U /* FCEOFe/IPE */ +#define TXGBE_RXD_ERR_FCERR 0x00700000U /* FCERR/FDIRERR */ +#define TXGBE_RXD_ERR_FDIR_LEN 0x00100000U /* FDIR Length error */ +#define TXGBE_RXD_ERR_FDIR_DROP 0x00200000U /* FDIR Drop error */ +#define TXGBE_RXD_ERR_FDIR_COLL 0x00400000U /* FDIR Collision error */ +#define TXGBE_RXD_ERR_HBO 0x00800000U /*Header Buffer Overflow */ +#define TXGBE_RXD_ERR_OUTERIPER 0x04000000U /* CRC IP Header error */ +#define TXGBE_RXD_ERR_SECERR_MASK 0x18000000U +#define TXGBE_RXD_ERR_RXE 0x20000000U /* Any MAC Error */ +#define TXGBE_RXD_ERR_TCPE 0x40000000U /* TCP/UDP Checksum Error */ +#define TXGBE_RXD_ERR_IPE 0x80000000U /* IP Checksum Error */ + +#define TXGBE_RXDPS_HDRSTAT_HDRSP 0x00008000U +#define TXGBE_RXDPS_HDRSTAT_HDRLEN_MASK 0x000003FFU + +#define TXGBE_RXD_RSSTYPE_MASK 0x0000000FU +#define TXGBE_RXD_TPID_MASK 0x000001C0U +#define TXGBE_RXD_TPID_SHIFT 6 +#define TXGBE_RXD_HDRBUFLEN_MASK 0x00007FE0U +#define TXGBE_RXD_RSCCNT_MASK 0x001E0000U +#define TXGBE_RXD_RSCCNT_SHIFT 17 +#define TXGBE_RXD_HDRBUFLEN_SHIFT 5 +#define TXGBE_RXD_SPLITHEADER_EN 0x00001000U +#define TXGBE_RXD_SPH 0x8000 + +/* RSS Hash results */ +#define TXGBE_RXD_RSSTYPE_NONE 0x00000000U +#define TXGBE_RXD_RSSTYPE_IPV4_TCP 0x00000001U +#define TXGBE_RXD_RSSTYPE_IPV4 0x00000002U +#define TXGBE_RXD_RSSTYPE_IPV6_TCP 0x00000003U +#define TXGBE_RXD_RSSTYPE_IPV4_SCTP 0x00000004U +#define TXGBE_RXD_RSSTYPE_IPV6 0x00000005U +#define TXGBE_RXD_RSSTYPE_IPV6_SCTP 0x00000006U +#define TXGBE_RXD_RSSTYPE_IPV4_UDP 0x00000007U +#define TXGBE_RXD_RSSTYPE_IPV6_UDP 0x00000008U + +/** + * receive packet type + * PTYPE:8 = TUN:2 + PKT:2 + TYP:4 + **/ +/* TUN */ +#define TXGBE_PTYPE_TUN_IPV4 (0x80) +#define TXGBE_PTYPE_TUN_IPV6 (0xC0) + +/* PKT for TUN */ +#define TXGBE_PTYPE_PKT_IPIP (0x00) /* IP+IP */ +#define TXGBE_PTYPE_PKT_IG (0x10) /* IP+GRE */ +#define TXGBE_PTYPE_PKT_IGM (0x20) /* IP+GRE+MAC */ +#define TXGBE_PTYPE_PKT_IGMV (0x30) /* IP+GRE+MAC+VLAN */ +/* PKT for !TUN */ +#define TXGBE_PTYPE_PKT_MAC (0x10) +#define TXGBE_PTYPE_PKT_IP (0x20) +#define TXGBE_PTYPE_PKT_FCOE (0x30) + +/* TYP for PKT=mac */ +#define TXGBE_PTYPE_TYP_MAC (0x01) +#define TXGBE_PTYPE_TYP_TS (0x02) /* time sync */ +#define TXGBE_PTYPE_TYP_FIP (0x03) +#define TXGBE_PTYPE_TYP_LLDP (0x04) +#define TXGBE_PTYPE_TYP_CNM (0x05) +#define TXGBE_PTYPE_TYP_EAPOL (0x06) +#define TXGBE_PTYPE_TYP_ARP (0x07) +/* TYP for PKT=ip */ +#define TXGBE_PTYPE_PKT_IPV6 (0x08) +#define TXGBE_PTYPE_TYP_IPFRAG (0x01) +#define TXGBE_PTYPE_TYP_IP (0x02) +#define TXGBE_PTYPE_TYP_UDP (0x03) +#define TXGBE_PTYPE_TYP_TCP (0x04) +#define TXGBE_PTYPE_TYP_SCTP (0x05) +/* TYP for PKT=fcoe */ +#define TXGBE_PTYPE_PKT_VFT (0x08) +#define TXGBE_PTYPE_TYP_FCOE (0x00) +#define TXGBE_PTYPE_TYP_FCDATA (0x01) +#define TXGBE_PTYPE_TYP_FCRDY (0x02) +#define TXGBE_PTYPE_TYP_FCRSP (0x03) +#define TXGBE_PTYPE_TYP_FCOTHER (0x04) + +/* Packet type non-ip values */ +enum txgbe_l2_ptypes { + TXGBE_PTYPE_L2_ABORTED = (TXGBE_PTYPE_PKT_MAC), + TXGBE_PTYPE_L2_MAC = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_MAC), + TXGBE_PTYPE_L2_TS = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_TS), + TXGBE_PTYPE_L2_FIP = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_FIP), + TXGBE_PTYPE_L2_LLDP = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_LLDP), + TXGBE_PTYPE_L2_CNM = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_CNM), + TXGBE_PTYPE_L2_EAPOL = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_EAPOL), + TXGBE_PTYPE_L2_ARP = (TXGBE_PTYPE_PKT_MAC | TXGBE_PTYPE_TYP_ARP), + + TXGBE_PTYPE_L2_IPV4_FRAG = (TXGBE_PTYPE_PKT_IP | + TXGBE_PTYPE_TYP_IPFRAG), + TXGBE_PTYPE_L2_IPV4 = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_TYP_IP), + TXGBE_PTYPE_L2_IPV4_UDP = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_TYP_UDP), + TXGBE_PTYPE_L2_IPV4_TCP = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_TYP_TCP), + TXGBE_PTYPE_L2_IPV4_SCTP = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_TYP_SCTP), + TXGBE_PTYPE_L2_IPV6_FRAG = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_PKT_IPV6 | + TXGBE_PTYPE_TYP_IPFRAG), + TXGBE_PTYPE_L2_IPV6 = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_PKT_IPV6 | + TXGBE_PTYPE_TYP_IP), + TXGBE_PTYPE_L2_IPV6_UDP = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_PKT_IPV6 | + TXGBE_PTYPE_TYP_UDP), + TXGBE_PTYPE_L2_IPV6_TCP = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_PKT_IPV6 | + TXGBE_PTYPE_TYP_TCP), + TXGBE_PTYPE_L2_IPV6_SCTP = (TXGBE_PTYPE_PKT_IP | TXGBE_PTYPE_PKT_IPV6 | + TXGBE_PTYPE_TYP_SCTP), + + TXGBE_PTYPE_L2_FCOE = (TXGBE_PTYPE_PKT_FCOE | TXGBE_PTYPE_TYP_FCOE), + TXGBE_PTYPE_L2_FCOE_FCDATA = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_TYP_FCDATA), + TXGBE_PTYPE_L2_FCOE_FCRDY = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_TYP_FCRDY), + TXGBE_PTYPE_L2_FCOE_FCRSP = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_TYP_FCRSP), + TXGBE_PTYPE_L2_FCOE_FCOTHER = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_TYP_FCOTHER), + TXGBE_PTYPE_L2_FCOE_VFT = (TXGBE_PTYPE_PKT_FCOE | TXGBE_PTYPE_PKT_VFT), + TXGBE_PTYPE_L2_FCOE_VFT_FCDATA = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_PKT_VFT | TXGBE_PTYPE_TYP_FCDATA), + TXGBE_PTYPE_L2_FCOE_VFT_FCRDY = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_PKT_VFT | TXGBE_PTYPE_TYP_FCRDY), + TXGBE_PTYPE_L2_FCOE_VFT_FCRSP = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_PKT_VFT | TXGBE_PTYPE_TYP_FCRSP), + TXGBE_PTYPE_L2_FCOE_VFT_FCOTHER = (TXGBE_PTYPE_PKT_FCOE | + TXGBE_PTYPE_PKT_VFT | TXGBE_PTYPE_TYP_FCOTHER), + + TXGBE_PTYPE_L2_TUN4_MAC = (TXGBE_PTYPE_TUN_IPV4 | TXGBE_PTYPE_PKT_IGM), + TXGBE_PTYPE_L2_TUN6_MAC = (TXGBE_PTYPE_TUN_IPV6 | TXGBE_PTYPE_PKT_IGM), +}; + +#define TXGBE_RXD_PKTTYPE(_rxd) \ + ((le32_to_cpu((_rxd)->wb.lower.lo_dword.data) >> 9) & 0xFF) +#define TXGBE_PTYPE_TUN(_pt) ((_pt) & 0xC0) +#define TXGBE_PTYPE_PKT(_pt) ((_pt) & 0x30) +#define TXGBE_PTYPE_TYP(_pt) ((_pt) & 0x0F) +#define TXGBE_PTYPE_TYPL4(_pt) ((_pt) & 0x07) + +#define TXGBE_RXD_IPV6EX(_rxd) \ + ((le32_to_cpu((_rxd)->wb.lower.lo_dword.data) >> 6) & 0x1) + +/* Security Processing bit Indication */ +#define TXGBE_RXD_LNKSEC_STATUS_SECP 0x00020000U +#define TXGBE_RXD_LNKSEC_ERROR_NO_SA_MATCH 0x08000000U +#define TXGBE_RXD_LNKSEC_ERROR_REPLAY_ERROR 0x10000000U +#define TXGBE_RXD_LNKSEC_ERROR_BIT_MASK 0x18000000U +#define TXGBE_RXD_LNKSEC_ERROR_BAD_SIG 0x18000000U + +/* Masks to determine if packets should be dropped due to frame errors */ +#define TXGBE_RXD_ERR_FRAME_ERR_MASK TXGBE_RXD_ERR_RXE + +/*********************** Adv Transmit Descriptor Config Masks ****************/ +#define TXGBE_TXD_DTALEN_MASK 0x0000FFFFU /* Data buf length(bytes) */ +#define TXGBE_TXD_MAC_LINKSEC 0x00040000U /* Insert LinkSec */ +#define TXGBE_TXD_MAC_TSTAMP 0x00080000U /* IEEE1588 time stamp */ +#define TXGBE_TXD_IPSEC_SA_INDEX_MASK 0x000003FFU /* IPSec SA index */ +#define TXGBE_TXD_IPSEC_ESP_LEN_MASK 0x000001FFU /* IPSec ESP length */ +#define TXGBE_TXD_DTYP_MASK 0x00F00000U /* DTYP mask */ +#define TXGBE_TXD_DTYP_CTXT 0x00100000U /* Adv Context Desc */ +#define TXGBE_TXD_DTYP_DATA 0x00000000U /* Adv Data Descriptor */ +#define TXGBE_TXD_EOP 0x01000000U /* End of Packet */ +#define TXGBE_TXD_IFCS 0x02000000U /* Insert FCS */ +#define TXGBE_TXD_LINKSEC 0x04000000U /* enable linksec */ +#define TXGBE_TXD_RS 0x08000000U /* Report Status */ +#define TXGBE_TXD_ECU 0x10000000U /* DDP hdr type or iSCSI */ +#define TXGBE_TXD_QCN 0x20000000U /* cntag insertion enable */ +#define TXGBE_TXD_VLE 0x40000000U /* VLAN pkt enable */ +#define TXGBE_TXD_TSE 0x80000000U /* TCP Seg enable */ +#define TXGBE_TXD_STAT_DD 0x00000001U /* Descriptor Done */ +#define TXGBE_TXD_IDX_SHIFT 4 /* Adv desc Index shift */ +#define TXGBE_TXD_CC 0x00000080U /* Check Context */ +#define TXGBE_TXD_IPSEC 0x00000100U /* enable ipsec esp */ +#define TXGBE_TXD_IIPCS 0x00000400U +#define TXGBE_TXD_EIPCS 0x00000800U +#define TXGBE_TXD_L4CS 0x00000200U +#define TXGBE_TXD_PAYLEN_SHIFT 13 /* Adv desc PAYLEN shift */ +#define TXGBE_TXD_MACLEN_SHIFT 9 /* Adv ctxt desc mac len shift */ +#define TXGBE_TXD_VLAN_SHIFT 16 /* Adv ctxt vlan tag shift */ +#define TXGBE_TXD_TAG_TPID_SEL_SHIFT 11 +#define TXGBE_TXD_IPSEC_TYPE_SHIFT 14 +#define TXGBE_TXD_ENC_SHIFT 15 + +#define TXGBE_TXD_TUCMD_IPSEC_TYPE_ESP 0x00004000U /* IPSec Type ESP */ +#define TXGBE_TXD_TUCMD_IPSEC_ENCRYPT_EN 0x00008000/* ESP Encrypt Enable */ +#define TXGBE_TXD_TUCMD_FCOE 0x00010000U /* FCoE Frame Type */ +#define TXGBE_TXD_FCOEF_EOF_MASK (0x3 << 10) /* FC EOF index */ +#define TXGBE_TXD_FCOEF_SOF ((1 << 2) << 10) /* FC SOF index */ +#define TXGBE_TXD_FCOEF_PARINC ((1 << 3) << 10) /* Rel_Off in F_CTL */ +#define TXGBE_TXD_FCOEF_ORIE ((1 << 4) << 10) /* Orientation End */ +#define TXGBE_TXD_FCOEF_ORIS ((1 << 5) << 10) /* Orientation Start */ +#define TXGBE_TXD_FCOEF_EOF_N (0x0 << 10) /* 00: EOFn */ +#define TXGBE_TXD_FCOEF_EOF_T (0x1 << 10) /* 01: EOFt */ +#define TXGBE_TXD_FCOEF_EOF_NI (0x2 << 10) /* 10: EOFni */ +#define TXGBE_TXD_FCOEF_EOF_A (0x3 << 10) /* 11: EOFa */ +#define TXGBE_TXD_L4LEN_SHIFT 8 /* Adv ctxt L4LEN shift */ +#define TXGBE_TXD_MSS_SHIFT 16 /* Adv ctxt MSS shift */ + +#define TXGBE_TXD_OUTER_IPLEN_SHIFT 12 /* Adv ctxt OUTERIPLEN shift */ +#define TXGBE_TXD_TUNNEL_LEN_SHIFT 21 /* Adv ctxt TUNNELLEN shift */ +#define TXGBE_TXD_TUNNEL_TYPE_SHIFT 11 /* Adv Tx Desc Tunnel Type shift */ +#define TXGBE_TXD_TUNNEL_DECTTL_SHIFT 27 /* Adv ctxt DECTTL shift */ +#define TXGBE_TXD_TUNNEL_UDP (0x0ULL << TXGBE_TXD_TUNNEL_TYPE_SHIFT) +#define TXGBE_TXD_TUNNEL_GRE (0x1ULL << TXGBE_TXD_TUNNEL_TYPE_SHIFT) + +/************ txgbe_type.h ************/ +/* Number of Transmit and Receive Descriptors must be a multiple of 8 */ +#define TXGBE_REQ_TX_DESCRIPTOR_MULTIPLE 8 +#define TXGBE_REQ_RX_DESCRIPTOR_MULTIPLE 8 +#define TXGBE_REQ_TX_BUFFER_GRANULARITY 1024 + +/* Vlan-specific macros */ +#define TXGBE_RX_DESC_SPECIAL_VLAN_MASK 0x0FFF /* VLAN ID in lower 12 bits */ +#define TXGBE_RX_DESC_SPECIAL_PRI_MASK 0xE000 /* Priority in upper 3 bits */ +#define TXGBE_RX_DESC_SPECIAL_PRI_SHIFT 0x000D /* Priority in upper 3 of 16 */ +#define TXGBE_TX_DESC_SPECIAL_PRI_SHIFT TXGBE_RX_DESC_SPECIAL_PRI_SHIFT + +/* Transmit Descriptor */ +union txgbe_tx_desc { + struct { + __le64 buffer_addr; /* Address of descriptor's data buf */ + __le32 cmd_type_len; + __le32 olinfo_status; + } read; + struct { + __le64 rsvd; /* Reserved */ + __le32 nxtseq_seed; + __le32 status; + } wb; +}; + +/* Receive Descriptor */ +union txgbe_rx_desc { + struct { + __le64 pkt_addr; /* Packet buffer address */ + __le64 hdr_addr; /* Header buffer address */ + } read; + struct { + struct { + union { + __le32 data; + struct { + __le16 pkt_info; /* RSS, Pkt type */ + __le16 hdr_info; /* Splithdr, hdrlen */ + } hs_rss; + } lo_dword; + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length; /* Packet length */ + __le16 vlan; /* VLAN tag */ + } upper; + } wb; /* writeback */ +}; + +/* Context descriptors */ +struct txgbe_tx_context_desc { + __le32 vlan_macip_lens; + __le32 seqnum_seed; + __le32 type_tucmd_mlhl; + __le32 mss_l4len_idx; +}; + +/************************* Flow Directory HASH *******************************/ +/* Software ATR hash keys */ +#define TXGBE_ATR_BUCKET_HASH_KEY 0x3DAD14E2 +#define TXGBE_ATR_SIGNATURE_HASH_KEY 0x174D3614 + +/* Software ATR input stream values and masks */ +#define TXGBE_ATR_HASH_MASK 0x7fff +#define TXGBE_ATR_L4TYPE_MASK 0x3 +#define TXGBE_ATR_L4TYPE_UDP 0x1 +#define TXGBE_ATR_L4TYPE_TCP 0x2 +#define TXGBE_ATR_L4TYPE_SCTP 0x3 +#define TXGBE_ATR_L4TYPE_IPV6_MASK 0x4 +#define TXGBE_ATR_L4TYPE_TUNNEL_MASK 0x10 +enum txgbe_atr_flow_type { + TXGBE_ATR_FLOW_TYPE_IPV4 = 0x0, + TXGBE_ATR_FLOW_TYPE_UDPV4 = 0x1, + TXGBE_ATR_FLOW_TYPE_TCPV4 = 0x2, + TXGBE_ATR_FLOW_TYPE_SCTPV4 = 0x3, + TXGBE_ATR_FLOW_TYPE_IPV6 = 0x4, + TXGBE_ATR_FLOW_TYPE_UDPV6 = 0x5, + TXGBE_ATR_FLOW_TYPE_TCPV6 = 0x6, + TXGBE_ATR_FLOW_TYPE_SCTPV6 = 0x7, + TXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4 = 0x10, + TXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4 = 0x11, + TXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4 = 0x12, + TXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4 = 0x13, + TXGBE_ATR_FLOW_TYPE_TUNNELED_IPV6 = 0x14, + TXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV6 = 0x15, + TXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV6 = 0x16, + TXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV6 = 0x17, +}; + +/* Flow Director ATR input struct. */ +union txgbe_atr_input { + /* + * Byte layout in order, all values with MSB first: + * + * vm_pool - 1 byte + * flow_type - 1 byte + * vlan_id - 2 bytes + * src_ip - 16 bytes + * inner_mac - 6 bytes + * cloud_mode - 2 bytes + * tni_vni - 4 bytes + * dst_ip - 16 bytes + * src_port - 2 bytes + * dst_port - 2 bytes + * flex_bytes - 2 bytes + * bkt_hash - 2 bytes + */ + struct { + u8 vm_pool; + u8 flow_type; + __be16 vlan_id; + __be32 dst_ip[4]; + __be32 src_ip[4]; + __be16 src_port; + __be16 dst_port; + __be16 flex_bytes; + __be16 bkt_hash; + } formatted; + __be32 dword_stream[11]; +}; + +/* Flow Director compressed ATR hash input struct */ +union txgbe_atr_hash_dword { + struct { + u8 vm_pool; + u8 flow_type; + __be16 vlan_id; + } formatted; + __be32 ip; + struct { + __be16 src; + __be16 dst; + } port; + __be16 flex_bytes; + __be32 dword; +}; + + +/****************** Manageablility Host Interface defines ********************/ +#define TXGBE_HI_MAX_BLOCK_BYTE_LENGTH 256 /* Num of bytes in range */ +#define TXGBE_HI_MAX_BLOCK_DWORD_LENGTH 64 /* Num of dwords in range */ +#define TXGBE_HI_COMMAND_TIMEOUT 5000 /* Process HI command limit */ +#define TXGBE_HI_FLASH_ERASE_TIMEOUT 5000 /* Process Erase command limit */ +#define TXGBE_HI_FLASH_UPDATE_TIMEOUT 5000 /* Process Update command limit */ +#define TXGBE_HI_FLASH_VERIFY_TIMEOUT 60000 /* Process Apply command limit */ +#define TXGBE_HI_PHY_MGMT_REQ_TIMEOUT 2000 /* Wait up to 2 seconds */ + +/* CEM Support */ +#define FW_CEM_HDR_LEN 0x4 +#define FW_CEM_CMD_DRIVER_INFO 0xDD +#define FW_CEM_CMD_DRIVER_INFO_LEN 0x5 +#define FW_CEM_CMD_RESERVED 0X0 +#define FW_CEM_UNUSED_VER 0x0 +#define FW_CEM_MAX_RETRIES 3 +#define FW_CEM_RESP_STATUS_SUCCESS 0x1 +#define FW_READ_SHADOW_RAM_CMD 0x31 +#define FW_READ_SHADOW_RAM_LEN 0x6 +#define FW_WRITE_SHADOW_RAM_CMD 0x33 +#define FW_WRITE_SHADOW_RAM_LEN 0xA /* 8 plus 1 WORD to write */ +#define FW_SHADOW_RAM_DUMP_CMD 0x36 +#define FW_SHADOW_RAM_DUMP_LEN 0 +#define FW_DEFAULT_CHECKSUM 0xFF /* checksum always 0xFF */ +#define FW_NVM_DATA_OFFSET 3 +#define FW_MAX_READ_BUFFER_SIZE 244 +#define FW_DISABLE_RXEN_CMD 0xDE +#define FW_DISABLE_RXEN_LEN 0x1 +#define FW_PHY_MGMT_REQ_CMD 0x20 +#define FW_RESET_CMD 0xDF +#define FW_RESET_LEN 0x2 +#define FW_SETUP_MAC_LINK_CMD 0xE0 +#define FW_SETUP_MAC_LINK_LEN 0x2 +#define FW_FLASH_UPGRADE_START_CMD 0xE3 +#define FW_FLASH_UPGRADE_START_LEN 0x1 +#define FW_FLASH_UPGRADE_WRITE_CMD 0xE4 +#define FW_FLASH_UPGRADE_VERIFY_CMD 0xE5 +#define FW_FLASH_UPGRADE_VERIFY_LEN 0x4 + +/* Host Interface Command Structures */ +struct txgbe_hic_hdr { + u8 cmd; + u8 buf_len; + union { + u8 cmd_resv; + u8 ret_status; + } cmd_or_resp; + u8 checksum; +}; + +struct txgbe_hic_hdr2_req { + u8 cmd; + u8 buf_lenh; + u8 buf_lenl; + u8 checksum; +}; + +struct txgbe_hic_hdr2_rsp { + u8 cmd; + u8 buf_lenl; + u8 buf_lenh_status; /* 7-5: high bits of buf_len, 4-0: status */ + u8 checksum; +}; + +union txgbe_hic_hdr2 { + struct txgbe_hic_hdr2_req req; + struct txgbe_hic_hdr2_rsp rsp; +}; + +struct txgbe_hic_drv_info { + struct txgbe_hic_hdr hdr; + u8 port_num; + u8 ver_sub; + u8 ver_build; + u8 ver_min; + u8 ver_maj; + u8 pad; /* end spacing to ensure length is mult. of dword */ + u16 pad2; /* end spacing to ensure length is mult. of dword2 */ +}; + +/* These need to be dword aligned */ +struct txgbe_hic_read_shadow_ram { + union txgbe_hic_hdr2 hdr; + u32 address; + u16 length; + u16 pad2; + u16 data; + u16 pad3; +}; + +struct txgbe_hic_write_shadow_ram { + union txgbe_hic_hdr2 hdr; + u32 address; + u16 length; + u16 pad2; + u16 data; + u16 pad3; +}; + +struct txgbe_hic_disable_rxen { + struct txgbe_hic_hdr hdr; + u8 port_number; + u8 pad2; + u16 pad3; +}; + +struct txgbe_hic_reset { + struct txgbe_hic_hdr hdr; + u16 lan_id; + u16 reset_type; +}; + +struct txgbe_hic_phy_cfg { + struct txgbe_hic_hdr hdr; + u8 lan_id; + u8 phy_mode; + u16 phy_speed; +}; + +enum txgbe_module_id { + TXGBE_MODULE_EEPROM = 0, + TXGBE_MODULE_FIRMWARE, + TXGBE_MODULE_HARDWARE, + TXGBE_MODULE_PCIE +}; + +struct txgbe_hic_upg_start { + struct txgbe_hic_hdr hdr; + u8 module_id; + u8 pad2; + u16 pad3; +}; + +struct txgbe_hic_upg_write { + struct txgbe_hic_hdr hdr; + u8 data_len; + u8 eof_flag; + u16 check_sum; + u32 data[62]; +}; + +enum txgbe_upg_flag { + TXGBE_RESET_NONE = 0, + TXGBE_RESET_FIRMWARE, + TXGBE_RELOAD_EEPROM, + TXGBE_RESET_LAN +}; + +struct txgbe_hic_upg_verify { + struct txgbe_hic_hdr hdr; + u32 action_flag; +}; + +/* Number of 100 microseconds we wait for PCI Express master disable */ +#define TXGBE_PCI_MASTER_DISABLE_TIMEOUT 800 + +/* Check whether address is multicast. This is little-endian specific check.*/ +#define TXGBE_IS_MULTICAST(Address) \ + (bool)(((u8 *)(Address))[0] & ((u8)0x01)) + +/* Check whether an address is broadcast. */ +#define TXGBE_IS_BROADCAST(Address) \ + ((((u8 *)(Address))[0] == ((u8)0xff)) && \ + (((u8 *)(Address))[1] == ((u8)0xff))) + +/* DCB registers */ +#define TXGBE_DCB_MAX_TRAFFIC_CLASS 8 + +/* Power Management */ +/* DMA Coalescing configuration */ +struct txgbe_dmac_config { + u16 watchdog_timer; /* usec units */ + bool fcoe_en; + u32 link_speed; + u8 fcoe_tc; + u8 num_tcs; +}; + + +/* Autonegotiation advertised speeds */ +typedef u32 txgbe_autoneg_advertised; +/* Link speed */ +#define TXGBE_LINK_SPEED_UNKNOWN 0 +#define TXGBE_LINK_SPEED_100_FULL 1 +#define TXGBE_LINK_SPEED_1GB_FULL 2 +#define TXGBE_LINK_SPEED_10GB_FULL 4 +#define TXGBE_LINK_SPEED_10_FULL 8 +#define TXGBE_LINK_SPEED_AUTONEG (TXGBE_LINK_SPEED_100_FULL | \ + TXGBE_LINK_SPEED_1GB_FULL | \ + TXGBE_LINK_SPEED_10GB_FULL | \ + TXGBE_LINK_SPEED_10_FULL) + +/* Physical layer type */ +typedef u32 txgbe_physical_layer; +#define TXGBE_PHYSICAL_LAYER_UNKNOWN 0 +#define TXGBE_PHYSICAL_LAYER_10GBASE_T 0x0001 +#define TXGBE_PHYSICAL_LAYER_1000BASE_T 0x0002 +#define TXGBE_PHYSICAL_LAYER_100BASE_TX 0x0004 +#define TXGBE_PHYSICAL_LAYER_SFP_PLUS_CU 0x0008 +#define TXGBE_PHYSICAL_LAYER_10GBASE_LR 0x0010 +#define TXGBE_PHYSICAL_LAYER_10GBASE_LRM 0x0020 +#define TXGBE_PHYSICAL_LAYER_10GBASE_SR 0x0040 +#define TXGBE_PHYSICAL_LAYER_10GBASE_KX4 0x0080 +#define TXGBE_PHYSICAL_LAYER_1000BASE_KX 0x0200 +#define TXGBE_PHYSICAL_LAYER_1000BASE_BX 0x0400 +#define TXGBE_PHYSICAL_LAYER_10GBASE_KR 0x0800 +#define TXGBE_PHYSICAL_LAYER_10GBASE_XAUI 0x1000 +#define TXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA 0x2000 +#define TXGBE_PHYSICAL_LAYER_1000BASE_SX 0x4000 + + +/* Special PHY Init Routine */ +#define TXGBE_PHY_INIT_OFFSET_NL 0x002B +#define TXGBE_PHY_INIT_END_NL 0xFFFF +#define TXGBE_CONTROL_MASK_NL 0xF000 +#define TXGBE_DATA_MASK_NL 0x0FFF +#define TXGBE_CONTROL_SHIFT_NL 12 +#define TXGBE_DELAY_NL 0 +#define TXGBE_DATA_NL 1 +#define TXGBE_CONTROL_NL 0x000F +#define TXGBE_CONTROL_EOL_NL 0x0FFF +#define TXGBE_CONTROL_SOL_NL 0x0000 + +/* Flow Control Data Sheet defined values + * Calculation and defines taken from 802.1bb Annex O + */ + +/* BitTimes (BT) conversion */ +#define TXGBE_BT2KB(BT) ((BT + (8 * 1024 - 1)) / (8 * 1024)) +#define TXGBE_B2BT(BT) (BT * 8) + +/* Calculate Delay to respond to PFC */ +#define TXGBE_PFC_D 672 + +/* Calculate Cable Delay */ +#define TXGBE_CABLE_DC 5556 /* Delay Copper */ +#define TXGBE_CABLE_DO 5000 /* Delay Optical */ + +/* Calculate Interface Delay X540 */ +#define TXGBE_PHY_DC 25600 /* Delay 10G BASET */ +#define TXGBE_MAC_DC 8192 /* Delay Copper XAUI interface */ +#define TXGBE_XAUI_DC (2 * 2048) /* Delay Copper Phy */ + +#define TXGBE_ID_X540 (TXGBE_MAC_DC + TXGBE_XAUI_DC + TXGBE_PHY_DC) + +/* Calculate Interface Delay */ +#define TXGBE_PHY_D 12800 +#define TXGBE_MAC_D 4096 +#define TXGBE_XAUI_D (2 * 1024) + +#define TXGBE_ID (TXGBE_MAC_D + TXGBE_XAUI_D + TXGBE_PHY_D) + +/* Calculate Delay incurred from higher layer */ +#define TXGBE_HD 6144 + +/* Calculate PCI Bus delay for low thresholds */ +#define TXGBE_PCI_DELAY 10000 + +/* Calculate X540 delay value in bit times */ +#define TXGBE_DV_X540(_max_frame_link, _max_frame_tc) \ + ((36 * \ + (TXGBE_B2BT(_max_frame_link) + \ + TXGBE_PFC_D + \ + (2 * TXGBE_CABLE_DC) + \ + (2 * TXGBE_ID_X540) + \ + TXGBE_HD) / 25 + 1) + \ + 2 * TXGBE_B2BT(_max_frame_tc)) + + +/* Calculate delay value in bit times */ +#define TXGBE_DV(_max_frame_link, _max_frame_tc) \ + ((36 * \ + (TXGBE_B2BT(_max_frame_link) + \ + TXGBE_PFC_D + \ + (2 * TXGBE_CABLE_DC) + \ + (2 * TXGBE_ID) + \ + TXGBE_HD) / 25 + 1) + \ + 2 * TXGBE_B2BT(_max_frame_tc)) + +/* Calculate low threshold delay values */ +#define TXGBE_LOW_DV_X540(_max_frame_tc) \ + (2 * TXGBE_B2BT(_max_frame_tc) + \ + (36 * TXGBE_PCI_DELAY / 25) + 1) + +#define TXGBE_LOW_DV(_max_frame_tc) \ + (2 * TXGBE_LOW_DV_X540(_max_frame_tc)) + + +/* + * Unavailable: The FCoE Boot Option ROM is not present in the flash. + * Disabled: Present; boot order is not set for any targets on the port. + * Enabled: Present; boot order is set for at least one target on the port. + */ +enum txgbe_fcoe_boot_status { + txgbe_fcoe_bootstatus_disabled = 0, + txgbe_fcoe_bootstatus_enabled = 1, + txgbe_fcoe_bootstatus_unavailable = 0xFFFF +}; + +enum txgbe_eeprom_type { + txgbe_eeprom_uninitialized = 0, + txgbe_eeprom_spi, + txgbe_flash, + txgbe_eeprom_none /* No NVM support */ +}; + +enum txgbe_phy_type { + txgbe_phy_unknown = 0, + txgbe_phy_none, + txgbe_phy_tn, + txgbe_phy_aq, + txgbe_phy_cu_unknown, + txgbe_phy_qt, + txgbe_phy_xaui, + txgbe_phy_nl, + txgbe_phy_sfp_passive_tyco, + txgbe_phy_sfp_passive_unknown, + txgbe_phy_sfp_active_unknown, + txgbe_phy_sfp_avago, + txgbe_phy_sfp_ftl, + txgbe_phy_sfp_ftl_active, + txgbe_phy_sfp_unknown, + txgbe_phy_sfp_intel, + txgbe_phy_sfp_unsupported, /*Enforce bit set with unsupported module*/ + txgbe_phy_generic +}; + +/* + * SFP+ module type IDs: + * + * ID Module Type + * ============= + * 0 SFP_DA_CU + * 1 SFP_SR + * 2 SFP_LR + * 3 SFP_DA_CU_CORE0 + * 4 SFP_DA_CU_CORE1 + * 5 SFP_SR/LR_CORE0 + * 6 SFP_SR/LR_CORE1 + */ +enum txgbe_sfp_type { + txgbe_sfp_type_da_cu = 0, + txgbe_sfp_type_sr = 1, + txgbe_sfp_type_lr = 2, + txgbe_sfp_type_da_cu_core0 = 3, + txgbe_sfp_type_da_cu_core1 = 4, + txgbe_sfp_type_srlr_core0 = 5, + txgbe_sfp_type_srlr_core1 = 6, + txgbe_sfp_type_da_act_lmt_core0 = 7, + txgbe_sfp_type_da_act_lmt_core1 = 8, + txgbe_sfp_type_1g_cu_core0 = 9, + txgbe_sfp_type_1g_cu_core1 = 10, + txgbe_sfp_type_1g_sx_core0 = 11, + txgbe_sfp_type_1g_sx_core1 = 12, + txgbe_sfp_type_1g_lx_core0 = 13, + txgbe_sfp_type_1g_lx_core1 = 14, + txgbe_sfp_type_not_present = 0xFFFE, + txgbe_sfp_type_unknown = 0xFFFF +}; + +enum txgbe_media_type { + txgbe_media_type_unknown = 0, + txgbe_media_type_fiber, + txgbe_media_type_copper, + txgbe_media_type_backplane, + txgbe_media_type_virtual +}; + +/* Flow Control Settings */ +enum txgbe_fc_mode { + txgbe_fc_none = 0, + txgbe_fc_rx_pause, + txgbe_fc_tx_pause, + txgbe_fc_full, + txgbe_fc_default +}; + +/* Smart Speed Settings */ +#define TXGBE_SMARTSPEED_MAX_RETRIES 3 +enum txgbe_smart_speed { + txgbe_smart_speed_auto = 0, + txgbe_smart_speed_on, + txgbe_smart_speed_off +}; + +/* PCI bus types */ +enum txgbe_bus_type { + txgbe_bus_type_unknown = 0, + txgbe_bus_type_pci, + txgbe_bus_type_pcix, + txgbe_bus_type_pci_express, + txgbe_bus_type_internal, + txgbe_bus_type_reserved +}; + +/* PCI bus speeds */ +enum txgbe_bus_speed { + txgbe_bus_speed_unknown = 0, + txgbe_bus_speed_33 = 33, + txgbe_bus_speed_66 = 66, + txgbe_bus_speed_100 = 100, + txgbe_bus_speed_120 = 120, + txgbe_bus_speed_133 = 133, + txgbe_bus_speed_2500 = 2500, + txgbe_bus_speed_5000 = 5000, + txgbe_bus_speed_8000 = 8000, + txgbe_bus_speed_reserved +}; + +/* PCI bus widths */ +enum txgbe_bus_width { + txgbe_bus_width_unknown = 0, + txgbe_bus_width_pcie_x1 = 1, + txgbe_bus_width_pcie_x2 = 2, + txgbe_bus_width_pcie_x4 = 4, + txgbe_bus_width_pcie_x8 = 8, + txgbe_bus_width_32 = 32, + txgbe_bus_width_64 = 64, + txgbe_bus_width_reserved +}; + +struct txgbe_addr_filter_info { + u32 num_mc_addrs; + u32 rar_used_count; + u32 mta_in_use; + u32 overflow_promisc; + bool user_set_promisc; +}; + +/* Bus parameters */ +struct txgbe_bus_info { + enum txgbe_bus_speed speed; + enum txgbe_bus_width width; + enum txgbe_bus_type type; + + u16 func; + u16 lan_id; +}; + +/* Flow control parameters */ +struct txgbe_fc_info { + u32 high_water[TXGBE_DCB_MAX_TRAFFIC_CLASS]; /* Flow Ctrl High-water */ + u32 low_water[TXGBE_DCB_MAX_TRAFFIC_CLASS]; /* Flow Ctrl Low-water */ + u16 pause_time; /* Flow Control Pause timer */ + bool send_xon; /* Flow control send XON */ + bool strict_ieee; /* Strict IEEE mode */ + bool disable_fc_autoneg; /* Do not autonegotiate FC */ + bool fc_was_autonegged; /* Is current_mode the result of autonegging? */ + enum txgbe_fc_mode current_mode; /* FC mode in effect */ + enum txgbe_fc_mode requested_mode; /* FC mode requested by caller */ +}; + +/* Statistics counters collected by the MAC */ +struct txgbe_hw_stats { + u64 crcerrs; + u64 illerrc; + u64 errbc; + u64 mspdc; + u64 mpctotal; + u64 mpc[8]; + u64 mlfc; + u64 mrfc; + u64 rlec; + u64 lxontxc; + u64 lxonrxc; + u64 lxofftxc; + u64 lxoffrxc; + u64 pxontxc[8]; + u64 pxonrxc[8]; + u64 pxofftxc[8]; + u64 pxoffrxc[8]; + u64 prc64; + u64 prc127; + u64 prc255; + u64 prc511; + u64 prc1023; + u64 prc1522; + u64 gprc; + u64 bprc; + u64 mprc; + u64 gptc; + u64 gorc; + u64 gotc; + u64 rnbc[8]; + u64 ruc; + u64 rfc; + u64 roc; + u64 rjc; + u64 mngprc; + u64 mngpdc; + u64 mngptc; + u64 tor; + u64 tpr; + u64 tpt; + u64 ptc64; + u64 ptc127; + u64 ptc255; + u64 ptc511; + u64 ptc1023; + u64 ptc1522; + u64 mptc; + u64 bptc; + u64 xec; + u64 qprc[16]; + u64 qptc[16]; + u64 qbrc[16]; + u64 qbtc[16]; + u64 qprdc[16]; + u64 pxon2offc[8]; + u64 fdirustat_add; + u64 fdirustat_remove; + u64 fdirfstat_fadd; + u64 fdirfstat_fremove; + u64 fdirmatch; + u64 fdirmiss; + u64 fccrc; + u64 fclast; + u64 fcoerpdc; + u64 fcoeprc; + u64 fcoeptc; + u64 fcoedwrc; + u64 fcoedwtc; + u64 fcoe_noddp; + u64 fcoe_noddp_ext_buff; + u64 ldpcec; + u64 pcrc8ec; + u64 b2ospc; + u64 b2ogprc; + u64 o2bgptc; + u64 o2bspc; +}; + +/* forward declaration */ +struct txgbe_hw; + +/* iterator type for walking multicast address lists */ +typedef u8* (*txgbe_mc_addr_itr) (struct txgbe_hw *hw, u8 **mc_addr_ptr, + u32 *vmdq); + +/* Function pointer table */ +struct txgbe_eeprom_operations { + s32 (*init_params)(struct txgbe_hw *); + s32 (*read)(struct txgbe_hw *, u16, u16 *); + s32 (*read_buffer)(struct txgbe_hw *, u16, u16, u16 *); + s32 (*write)(struct txgbe_hw *, u16, u16); + s32 (*write_buffer)(struct txgbe_hw *, u16, u16, u16 *); + s32 (*validate_checksum)(struct txgbe_hw *, u16 *); + s32 (*update_checksum)(struct txgbe_hw *); + s32 (*calc_checksum)(struct txgbe_hw *); +}; + +struct txgbe_flash_operations { + s32 (*init_params)(struct txgbe_hw *); + s32 (*read_buffer)(struct txgbe_hw *, u32, u32, u32 *); + s32 (*write_buffer)(struct txgbe_hw *, u32, u32, u32 *); +}; + +struct txgbe_mac_operations { + s32 (*init_hw)(struct txgbe_hw *); + s32 (*reset_hw)(struct txgbe_hw *); + s32 (*start_hw)(struct txgbe_hw *); + s32 (*clear_hw_cntrs)(struct txgbe_hw *); + enum txgbe_media_type (*get_media_type)(struct txgbe_hw *); + s32 (*get_mac_addr)(struct txgbe_hw *, u8 *); + s32 (*get_san_mac_addr)(struct txgbe_hw *, u8 *); + s32 (*set_san_mac_addr)(struct txgbe_hw *, u8 *); + s32 (*get_device_caps)(struct txgbe_hw *, u16 *); + s32 (*get_wwn_prefix)(struct txgbe_hw *, u16 *, u16 *); + s32 (*stop_adapter)(struct txgbe_hw *); + s32 (*get_bus_info)(struct txgbe_hw *); + void (*set_lan_id)(struct txgbe_hw *); + s32 (*enable_rx_dma)(struct txgbe_hw *, u32); + s32 (*disable_sec_rx_path)(struct txgbe_hw *); + s32 (*enable_sec_rx_path)(struct txgbe_hw *); + s32 (*acquire_swfw_sync)(struct txgbe_hw *, u32); + void (*release_swfw_sync)(struct txgbe_hw *, u32); + + /* Link */ + void (*disable_tx_laser)(struct txgbe_hw *); + void (*enable_tx_laser)(struct txgbe_hw *); + void (*flap_tx_laser)(struct txgbe_hw *); + s32 (*setup_link)(struct txgbe_hw *, u32, bool); + s32 (*setup_mac_link)(struct txgbe_hw *, u32, bool); + s32 (*check_link)(struct txgbe_hw *, u32 *, bool *, bool); + s32 (*get_link_capabilities)(struct txgbe_hw *, u32 *, + bool *); + void (*set_rate_select_speed)(struct txgbe_hw *, u32); + + /* Packet Buffer manipulation */ + void (*setup_rxpba)(struct txgbe_hw *, int, u32, int); + + /* LED */ + s32 (*led_on)(struct txgbe_hw *, u32); + s32 (*led_off)(struct txgbe_hw *, u32); + + /* RAR, Multicast, VLAN */ + s32 (*set_rar)(struct txgbe_hw *, u32, u8 *, u64, u32); + s32 (*clear_rar)(struct txgbe_hw *, u32); + s32 (*insert_mac_addr)(struct txgbe_hw *, u8 *, u32); + s32 (*set_vmdq)(struct txgbe_hw *, u32, u32); + s32 (*set_vmdq_san_mac)(struct txgbe_hw *, u32); + s32 (*clear_vmdq)(struct txgbe_hw *, u32, u32); + s32 (*init_rx_addrs)(struct txgbe_hw *); + s32 (*update_uc_addr_list)(struct txgbe_hw *, u8 *, u32, + txgbe_mc_addr_itr); + s32 (*update_mc_addr_list)(struct txgbe_hw *, u8 *, u32, + txgbe_mc_addr_itr, bool clear); + s32 (*enable_mc)(struct txgbe_hw *); + s32 (*disable_mc)(struct txgbe_hw *); + s32 (*clear_vfta)(struct txgbe_hw *); + s32 (*set_vfta)(struct txgbe_hw *, u32, u32, bool); + s32 (*set_vlvf)(struct txgbe_hw *, u32, u32, bool, bool *); + s32 (*init_uta_tables)(struct txgbe_hw *); + void (*set_mac_anti_spoofing)(struct txgbe_hw *, bool, int); + void (*set_vlan_anti_spoofing)(struct txgbe_hw *, bool, int); + + /* Flow Control */ + s32 (*fc_enable)(struct txgbe_hw *); + s32 (*setup_fc)(struct txgbe_hw *); + + /* Manageability interface */ + s32 (*set_fw_drv_ver)(struct txgbe_hw *, u8, u8, u8, u8); + s32 (*get_thermal_sensor_data)(struct txgbe_hw *); + s32 (*init_thermal_sensor_thresh)(struct txgbe_hw *hw); + void (*get_rtrup2tc)(struct txgbe_hw *hw, u8 *map); + void (*disable_rx)(struct txgbe_hw *hw); + void (*enable_rx)(struct txgbe_hw *hw); + void (*set_source_address_pruning)(struct txgbe_hw *, bool, + unsigned int); + void (*set_ethertype_anti_spoofing)(struct txgbe_hw *, bool, int); + s32 (*dmac_config)(struct txgbe_hw *hw); + s32 (*setup_eee)(struct txgbe_hw *hw, bool enable_eee); +}; + +struct txgbe_phy_operations { + s32 (*identify)(struct txgbe_hw *); + s32 (*identify_sfp)(struct txgbe_hw *); + s32 (*init)(struct txgbe_hw *); + s32 (*reset)(struct txgbe_hw *); + s32 (*read_reg)(struct txgbe_hw *, u32, u32, u16 *); + s32 (*write_reg)(struct txgbe_hw *, u32, u32, u16); + s32 (*read_reg_mdi)(struct txgbe_hw *, u32, u32, u16 *); + s32 (*write_reg_mdi)(struct txgbe_hw *, u32, u32, u16); + u32 (*setup_link)(struct txgbe_hw *, u32, bool); + s32 (*setup_internal_link)(struct txgbe_hw *); + u32 (*setup_link_speed)(struct txgbe_hw *, u32, bool); + s32 (*check_link)(struct txgbe_hw *, u32 *, bool *); + s32 (*get_firmware_version)(struct txgbe_hw *, u16 *); + s32 (*read_i2c_byte)(struct txgbe_hw *, u8, u8, u8 *); + s32 (*write_i2c_byte)(struct txgbe_hw *, u8, u8, u8); + s32 (*read_i2c_sff8472)(struct txgbe_hw *, u8, u8 *); + s32 (*read_i2c_eeprom)(struct txgbe_hw *, u8, u8 *); + s32 (*write_i2c_eeprom)(struct txgbe_hw *, u8, u8); + s32 (*check_overtemp)(struct txgbe_hw *); +}; + +struct txgbe_eeprom_info { + struct txgbe_eeprom_operations ops; + enum txgbe_eeprom_type type; + u32 semaphore_delay; + u16 word_size; + u16 address_bits; + u16 word_page_size; + u16 ctrl_word_3; + u16 sw_region_offset; +}; + +struct txgbe_flash_info { + struct txgbe_flash_operations ops; + u32 semaphore_delay; + u32 dword_size; + u16 address_bits; +}; + + +#define TXGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01 +struct txgbe_mac_info { + struct txgbe_mac_operations ops; + u8 addr[TXGBE_ETH_LENGTH_OF_ADDRESS]; + u8 perm_addr[TXGBE_ETH_LENGTH_OF_ADDRESS]; + u8 san_addr[TXGBE_ETH_LENGTH_OF_ADDRESS]; + /* prefix for World Wide Node Name (WWNN) */ + u16 wwnn_prefix; + /* prefix for World Wide Port Name (WWPN) */ + u16 wwpn_prefix; +#define TXGBE_MAX_MTA 128 +#define TXGBE_MAX_VFTA_ENTRIES 128 + u32 mta_shadow[TXGBE_MAX_MTA]; + s32 mc_filter_type; + u32 mcft_size; + u32 vft_shadow[TXGBE_MAX_VFTA_ENTRIES]; + u32 vft_size; + u32 num_rar_entries; + u32 rar_highwater; + u32 rx_pb_size; + u32 max_tx_queues; + u32 max_rx_queues; + u32 orig_sr_pcs_ctl2; + u32 orig_sr_pma_mmd_ctl1; + u32 orig_sr_an_mmd_ctl; + u32 orig_sr_an_mmd_adv_reg2; + u32 orig_vr_xs_or_pcs_mmd_digi_ctl1; + u8 san_mac_rar_index; + bool get_link_status; + u16 max_msix_vectors; + bool arc_subsystem_valid; + bool orig_link_settings_stored; + bool autotry_restart; + u8 flags; + struct txgbe_thermal_sensor_data thermal_sensor_data; + bool thermal_sensor_enabled; + struct txgbe_dmac_config dmac_config; + bool set_lben; +}; + +struct txgbe_phy_info { + struct txgbe_phy_operations ops; + enum txgbe_phy_type type; + u32 addr; + u32 id; + enum txgbe_sfp_type sfp_type; + bool sfp_setup_needed; + u32 revision; + enum txgbe_media_type media_type; + u32 phy_semaphore_mask; + u8 lan_id; /* to be delete */ + txgbe_autoneg_advertised autoneg_advertised; + enum txgbe_smart_speed smart_speed; + bool smart_speed_active; + bool multispeed_fiber; + bool reset_if_overtemp; + txgbe_physical_layer link_mode; +}; + +#include "txgbe_mbx.h" + +struct txgbe_mbx_operations { + void (*init_params)(struct txgbe_hw *hw); + s32 (*read)(struct txgbe_hw *, u32 *, u16, u16); + s32 (*write)(struct txgbe_hw *, u32 *, u16, u16); + s32 (*read_posted)(struct txgbe_hw *, u32 *, u16, u16); + s32 (*write_posted)(struct txgbe_hw *, u32 *, u16, u16); + s32 (*check_for_msg)(struct txgbe_hw *, u16); + s32 (*check_for_ack)(struct txgbe_hw *, u16); + s32 (*check_for_rst)(struct txgbe_hw *, u16); +}; + +struct txgbe_mbx_stats { + u32 msgs_tx; + u32 msgs_rx; + + u32 acks; + u32 reqs; + u32 rsts; +}; + +struct txgbe_mbx_info { + struct txgbe_mbx_operations ops; + struct txgbe_mbx_stats stats; + u32 timeout; + u32 udelay; + u32 v2p_mailbox; + u16 size; +}; + +enum txgbe_reset_type { + TXGBE_LAN_RESET = 0, + TXGBE_SW_RESET, + TXGBE_GLOBAL_RESET +}; + +enum txgbe_link_status { + TXGBE_LINK_STATUS_NONE = 0, + TXGBE_LINK_STATUS_KX, + TXGBE_LINK_STATUS_KX4 +}; + +struct txgbe_hw { + u8 __iomem *hw_addr; + void *back; + struct txgbe_mac_info mac; + struct txgbe_addr_filter_info addr_ctrl; + struct txgbe_fc_info fc; + struct txgbe_phy_info phy; + struct txgbe_eeprom_info eeprom; + struct txgbe_flash_info flash; + struct txgbe_bus_info bus; + struct txgbe_mbx_info mbx; + u16 device_id; + u16 vendor_id; + u16 subsystem_device_id; + u16 subsystem_vendor_id; + u8 revision_id; + bool adapter_stopped; + int api_version; + enum txgbe_reset_type reset_type; + bool force_full_reset; + bool allow_unsupported_sfp; + bool wol_enabled; +#if defined(TXGBE_SUPPORT_KYLIN_FT) + bool Fdir_enabled; +#endif + MTD_DEV phy_dev; + enum txgbe_link_status link_status; + u16 subsystem_id; + u16 tpid[8]; +}; + +#define TCALL(hw, func, args...) (((hw)->func != NULL) \ + ? (hw)->func((hw), ##args) : TXGBE_NOT_IMPLEMENTED) + +/* Error Codes */ +#define TXGBE_ERR 100 +#define TXGBE_NOT_IMPLEMENTED 0x7FFFFFFF +/* (-TXGBE_ERR, TXGBE_ERR): reserved for non-txgbe defined error code */ +#define TXGBE_ERR_NOSUPP -(TXGBE_ERR+0) +#define TXGBE_ERR_EEPROM -(TXGBE_ERR+1) +#define TXGBE_ERR_EEPROM_CHECKSUM -(TXGBE_ERR+2) +#define TXGBE_ERR_PHY -(TXGBE_ERR+3) +#define TXGBE_ERR_CONFIG -(TXGBE_ERR+4) +#define TXGBE_ERR_PARAM -(TXGBE_ERR+5) +#define TXGBE_ERR_MAC_TYPE -(TXGBE_ERR+6) +#define TXGBE_ERR_UNKNOWN_PHY -(TXGBE_ERR+7) +#define TXGBE_ERR_LINK_SETUP -(TXGBE_ERR+8) +#define TXGBE_ERR_ADAPTER_STOPPED -(TXGBE_ERR+09) +#define TXGBE_ERR_INVALID_MAC_ADDR -(TXGBE_ERR+10) +#define TXGBE_ERR_DEVICE_NOT_SUPPORTED -(TXGBE_ERR+11) +#define TXGBE_ERR_MASTER_REQUESTS_PENDING -(TXGBE_ERR+12) +#define TXGBE_ERR_INVALID_LINK_SETTINGS -(TXGBE_ERR+13) +#define TXGBE_ERR_AUTONEG_NOT_COMPLETE -(TXGBE_ERR+14) +#define TXGBE_ERR_RESET_FAILED -(TXGBE_ERR+15) +#define TXGBE_ERR_SWFW_SYNC -(TXGBE_ERR+16) +#define TXGBE_ERR_PHY_ADDR_INVALID -(TXGBE_ERR+17) +#define TXGBE_ERR_I2C -(TXGBE_ERR+18) +#define TXGBE_ERR_SFP_NOT_SUPPORTED -(TXGBE_ERR+19) +#define TXGBE_ERR_SFP_NOT_PRESENT -(TXGBE_ERR+20) +#define TXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT -(TXGBE_ERR+21) +#define TXGBE_ERR_NO_SAN_ADDR_PTR -(TXGBE_ERR+22) +#define TXGBE_ERR_FDIR_REINIT_FAILED -(TXGBE_ERR+23) +#define TXGBE_ERR_EEPROM_VERSION -(TXGBE_ERR+24) +#define TXGBE_ERR_NO_SPACE -(TXGBE_ERR+25) +#define TXGBE_ERR_OVERTEMP -(TXGBE_ERR+26) +#define TXGBE_ERR_UNDERTEMP -(TXGBE_ERR+27) +#define TXGBE_ERR_FC_NOT_NEGOTIATED -(TXGBE_ERR+28) +#define TXGBE_ERR_FC_NOT_SUPPORTED -(TXGBE_ERR+29) +#define TXGBE_ERR_SFP_SETUP_NOT_COMPLETE -(TXGBE_ERR+30) +#define TXGBE_ERR_PBA_SECTION -(TXGBE_ERR+31) +#define TXGBE_ERR_INVALID_ARGUMENT -(TXGBE_ERR+32) +#define TXGBE_ERR_HOST_INTERFACE_COMMAND -(TXGBE_ERR+33) +#define TXGBE_ERR_OUT_OF_MEM -(TXGBE_ERR+34) +#define TXGBE_ERR_FEATURE_NOT_SUPPORTED -(TXGBE_ERR+36) +#define TXGBE_ERR_EEPROM_PROTECTED_REGION -(TXGBE_ERR+37) +#define TXGBE_ERR_FDIR_CMD_INCOMPLETE -(TXGBE_ERR+38) +#define TXGBE_ERR_FLASH_LOADING_FAILED -(TXGBE_ERR+39) +#define TXGBE_ERR_XPCS_POWER_UP_FAILED -(TXGBE_ERR+40) +#define TXGBE_ERR_FW_RESP_INVALID -(TXGBE_ERR+41) +#define TXGBE_ERR_PHY_INIT_NOT_DONE -(TXGBE_ERR+42) +#define TXGBE_ERR_TIMEOUT -(TXGBE_ERR+43) +#define TXGBE_ERR_TOKEN_RETRY -(TXGBE_ERR+44) +#define TXGBE_ERR_REGISTER -(TXGBE_ERR+45) +#define TXGBE_ERR_MBX -(TXGBE_ERR+46) +#define TXGBE_ERR_MNG_ACCESS_FAILED -(TXGBE_ERR+47) + +/** + * register operations + **/ +/* read register */ +#define TXGBE_DEAD_READ_RETRIES 10 +#define TXGBE_DEAD_READ_REG 0xdeadbeefU +#define TXGBE_DEAD_READ_REG64 0xdeadbeefdeadbeefULL +#define TXGBE_FAILED_READ_REG 0xffffffffU +#define TXGBE_FAILED_READ_REG64 0xffffffffffffffffULL + +static inline bool TXGBE_REMOVED(void __iomem *addr) +{ + return unlikely(!addr); +} + +static inline u32 +txgbe_rd32(u8 __iomem *base) +{ + return readl(base); +} + +static inline u32 +rd32(struct txgbe_hw *hw, u32 reg) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + u32 val = TXGBE_FAILED_READ_REG; + + if (unlikely(!base)) + return val; + + val = txgbe_rd32(base + reg); + + return val; +} +#define rd32a(a, reg, offset) ( \ + rd32((a), (reg) + ((offset) << 2))) + +static inline u32 +rd32m(struct txgbe_hw *hw, u32 reg, u32 mask) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + u32 val = TXGBE_FAILED_READ_REG; + + if (unlikely(!base)) + return val; + + val = txgbe_rd32(base + reg); + if (unlikely(val == TXGBE_FAILED_READ_REG)) + return val; + + return val & mask; +} + +/* write register */ +static inline void +txgbe_wr32(u8 __iomem *base, u32 val) +{ + writel(val, base); +} + +static inline void +wr32(struct txgbe_hw *hw, u32 reg, u32 val) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + + if (unlikely(!base)) + return; + + txgbe_wr32(base + reg, val); +} +#define wr32a(a, reg, off, val) \ + wr32((a), (reg) + ((off) << 2), (val)) + +static inline void +wr32m(struct txgbe_hw *hw, u32 reg, u32 mask, u32 field) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + u32 val; + + if (unlikely(!base)) + return; + + val = txgbe_rd32(base + reg); + if (unlikely(val == TXGBE_FAILED_READ_REG)) + return; + + val = ((val & ~mask) | (field & mask)); + txgbe_wr32(base + reg, val); +} + +/* poll register */ +#define TXGBE_MDIO_TIMEOUT 1000 +#define TXGBE_I2C_TIMEOUT 1000 +#define TXGBE_SPI_TIMEOUT 1000 +static inline s32 +po32m(struct txgbe_hw *hw, u32 reg, + u32 mask, u32 field, int usecs, int count) +{ + int loop; + + loop = (count ? count : (usecs + 9) / 10); + usecs = (loop ? (usecs + loop - 1) / loop : 0); + + count = loop; + do { + u32 value = rd32(hw, reg); + if ((value & mask) == (field & mask)) { + break; + } + + if (loop-- <= 0) + break; + + udelay(usecs); + } while (true); + + return (count - loop <= count ? 0 : TXGBE_ERR_TIMEOUT); +} + +#define TXGBE_WRITE_FLUSH(H) rd32(H, TXGBE_MIS_PWR) + +#endif /* _TXGBE_TYPE_H_ */