Kernel

kernel@openeuler.org

December 2021

27 participants
170 discussions

[PATCH openEuler-5.10 01/54] hugetlb: before freeing hugetlb page set dtor to appropriate value
by Zheng Zengkai 03 Dec '21

03 Dec '21

From: Mike Kravetz <mike.kravetz(a)oracle.com> mainline inclusion from mainline-v5.15-rc1 commit e32d20c0c88b1cd0a44f882c4f0eb2f536363d1b category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4IGRQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- When removing a hugetlb page from the pool the ref count is set to one (as the free page has no ref count) and compound page destructor is set to NULL_COMPOUND_DTOR. Since a subsequent call to free the hugetlb page will call __free_pages for non-gigantic pages and free_gigantic_page for gigantic pages the destructor is not used. However, consider the following race with code taking a speculative reference on the page: Thread 0 Thread 1 -------- -------- remove_hugetlb_page set_page_refcounted(page); set_compound_page_dtor(page, NULL_COMPOUND_DTOR); get_page_unless_zero(page) __update_and_free_page __free_pages(page, huge_page_order(h)); /* Note that __free_pages() will simply drop the reference to the page. */ put_page(page) __put_compound_page() destroy_compound_page NULL_COMPOUND_DTOR BUG: kernel NULL pointer dereference, address: 0000000000000000 To address this race, set the dtor to the normal compound page dtor for non-gigantic pages. The dtor for gigantic pages does not matter as gigantic pages are changed from a compound page to 'just a group of pages' before freeing. Hence, the destructor is not used. Link: https://lkml.kernel.org/r/20210809184832.18342-4-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz(a)oracle.com> Reviewed-by: Muchun Song <songmuchun(a)bytedance.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: David Hildenbrand <david(a)redhat.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Naoya Horiguchi <naoya.horiguchi(a)linux.dev> Cc: Mina Almasry <almasrymina(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Chen Wandun <chenwandun(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- mm/hugetlb.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 47dd6b5e0040..6ae2d2e90681 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1364,8 +1364,28 @@ static void remove_hugetlb_page(struct hstate *h, struct page *page, h->surplus_huge_pages_node[nid]--; } + /* + * Very subtle + * + * For non-gigantic pages set the destructor to the normal compound + * page dtor. This is needed in case someone takes an additional + * temporary ref to the page, and freeing is delayed until they drop + * their reference. + * + * For gigantic pages set the destructor to the null dtor. This + * destructor will never be called. Before freeing the gigantic + * page destroy_compound_gigantic_page will turn the compound page + * into a simple group of pages. After this the destructor does not + * apply. + * + * This handles the case where more than one ref is held when and + * after update_and_free_page is called. + */ set_page_refcounted(page); - set_compound_page_dtor(page, NULL_COMPOUND_DTOR); + if (hstate_is_gigantic(h)) + set_compound_page_dtor(page, NULL_COMPOUND_DTOR); + else + set_compound_page_dtor(page, COMPOUND_PAGE_DTOR); h->nr_huge_pages--; h->nr_huge_pages_node[nid]--; -- 2.20.1

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Re: 【openEuler】Netswift Giga NIC驱动合入openEuler20.03
by Xie XiuQi 03 Dec '21

03 Dec '21

On 2021/12/3 17:46, 郑振鹏 wrote: > 谢工，您好 > > 在千兆驱动合入4.19内核完成后，我打算先推万兆驱动4.19内核功能升级及同步最新bug修复的补丁，再准备5.10内核千兆驱动补丁。 5.10 会在 3 月份发 22.03 LTS 版本，不打算这个版本带进来吗 > > BR， > zhenpeng > > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > > **************************************************************** > > 郑振鹏(zheng zhenpeng) > > 北京网迅科技有限公司杭州分公司软件工程师 > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > > Beijing WangXun Technology Co., Ltd. Software Engineer. > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > > > > Office: +86(0571)89807901-8014 > > Mobile: +86-13656681762 > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > > **************************************************************** > > > *发件人：* Xie XiuQi <mailto:xiexiuqi@huawei.com> > *发送时间：* 2021-12-03 16:15 > *收件人：* 郑振鹏 <mailto:zhenpengzheng@net-swift.com>; QiuLaibin <mailto:qiulaibin@huawei.com> > *抄送：* yangyingliang(a)huawei.com <mailto:yangyingliang@huawei.com>; kernel(a)openeuler.org <mailto:kernel@openeuler.org> > *主题：* Re: 【openEuler】Netswift Giga NIC驱动合入openEuler20.03 > > > On 2021/12/3 15:17, 郑振鹏 wrote: > > 您好， > > > > 目前我只在x86平台上测试我此次提交的patch，如果完成arm平台测试我再提交新的patch。 > > 感谢。 > > Netswift Giga NIC 对 22.03 （5.10内核）的支持，这个是不是也在做。 > > > > > BR， > > zhenpeng > > > > > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > > > > **************************************************************** > > > > 郑振鹏(zheng zhenpeng) > > > > 北京网迅科技有限公司杭州分公司软件工程师 > > > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > > > > Beijing WangXun Technology Co., Ltd. Software Engineer. > > > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > > > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > > > > > > > > Office: +86(0571)89807901-8014 > > > > Mobile: +86-13656681762 > > > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > > > > **************************************************************** > > > > > > *发件人：* QiuLaibin <mailto:qiulaibin@huawei.com> > > *发送时间：* 2021-12-03 15:01 > > *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com> > > *抄送：* Xiexiuqi <mailto:xiexiuqi@huawei.com>; yangyingliang(a)huawei.com <mailto:yangyingliang@huawei.com> > > *主题：* 【openEuler】Netswift Giga NIC驱动合入openEuler20.03 > > pengzheng您好： > > > > 非常感谢您的提交！ > > > > 目前我们正在向版本合入先前您针对openEuler提交的Netswift Giga NIC驱补丁集： > > > > [openEuler-1.0-LTS,1/2] net: ngbe: Add Netswift Giga NIC driver > > [openEuler-1.0-LTS,2/2] x86/config: Enable netswift Giga NIC driver for x86 > > > > 但鉴于您在编译config只在X86的config中打开，因此我们需要确认是否该驱动只能支持X86平台；arm上是否可以打开支持，若arm相关的config误打开是否会引入问题。 > > > > best regard > > Laibin Qiu > > > > > > >

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Re: [Tc] [Dev] [TC]请给位议题申报人按时与会，谢谢。RE: openEuler 技术委员会例会
by Xie XiuQi 03 Dec '21

03 Dec '21

TC 议题申报：议题：openEuler 22.03 LTS ARM64 版本(5.10 内核）内核页大小及支持CPU规格决策：决策点1：openEuler 22.03 LTS 是否默认采用 4K 页表（配合 48 BIT VA/PA) 决策点2：openEuler 22.03 LTS 如果默认采用 4K 页表，是否需要在单独出 64K 页表的 kernel 包。决策点3：openEuler 22.03 LTS 支持最大 CPU 数：NR_CPUS=4096, NODES 支持 128. （20.03 原版本配置：64K, 48 BIT VA/PA, NR_CPUS 1024, NODES 16) 之前的讨论链接： https://gitee.com/openeuler/kernel/issues/I4HDHZ 理由1：从讨论看，64K 兼容性问题比较多，且业界OS多采用4K，方便驱动及上层软件在兼容性认证，也利于支撑更多的使用场景。性能上，64K 优势场景，可以采用大页，或者单独 64K 版本支持。理由2：52 BIT 大内存支持，需要 64K 页，4K 页最大支持 48 BIT VA/PA, 256T 内存空间。如果要支持更大 PB 级内存，需要 64K。理由3：从未来几年诉求，和业界OS支持规格来看，CPU 数目增加是趋势，从兼容性和规格考虑， NR_CPUS 与业界OS最大的 4096 一致。当前4路飞腾S2500 最大 32 个 nodes，为满足未来几年的演进诉求，NODES 数拟最大支持 128. On 2021/12/3 14:35, yangcong wrote: > > > 申报议题： > 议题5：License风险识别系统引入openEuler社区 - 杨聪 <yangcong_hit(a)163.com> > 议题6：针对openEuler社区repo不同的类型（内容），选择license的策略 - 杨聪 <yangcong_hit(a)163.com> > 在2021年12月1日 09:34，Hufeng (Solar, Euler)<solar.hu(a)huawei.com> 写道： > 当前已有议题如下 > 议题1：release management sig工作计划 - 胡峰（延期到本次例会） > 议题2：openEuler 新技术领域规划讨论：Edge – 刘寿永，Embedded – 任慰（延期到本次例会） > 议题3：NestOS的社区资源支持与立项讨论：杜奕威 <duyiwei(a)kylinos.cn>（延期到本次例会） > a. 如何从openEuler官网下载NestOS镜像 > b. 提供相关资源以部署nestos所需要的自动更新环境 > c. 如何立项使更多的人参与到NestOS中 > 议题4： Greenplum白皮书评审-270162781(a)qq.com - bo zhao > 上会前请确认会议遗留问题闭环情况 > > > -----Original Message----- > From: Hufeng (Solar, Euler) > Sent: Tuesday, November 30, 2021 2:45 PM > To: tc(a)openeuler.org; 'dev(a)openeuler.org' <dev(a)openeuler.org> > Subject: [TC]议题收集，请给位议题申报人按时与会，谢谢。RE: [Dev] openEuler 技术委员会例会 > > 当前已有议题如下 > 议题1：release management sig工作计划 - 胡峰（延期到本次例会） > 议题2：openEuler 新技术领域规划讨论：Edge – 刘寿永，Embedded – 任慰（延期到本次例会） > 议题3：NestOS的社区资源支持与立项讨论：杜奕威 <duyiwei(a)kylinos.cn>（延期到本次例会） > a. 如何从openEuler官网下载NestOS镜像 > b. 提供相关资源以部署nestos所需要的自动更新环境 > c. 如何立项使更多的人参与到NestOS中 > > -----Original Message----- > From: openEuler conference [mailto:public@openeuler.org] > Sent: Tuesday, November 30, 2021 2:35 PM > Subject: [Dev] openEuler 技术委员会例会 > > 您好！ > > TC SIG 邀请您参加 2021-12-01 10:00 召开的ZOOM会议(自动录制) > > 会议主题：openEuler 技术委员会例会 > > 会议链接：https://us06web.zoom.us/j/82159612220?pwd=ZlNxWkEwY1MyUlQ3SmtFNmNEVGtwQT09 > > 温馨提醒：建议接入会议后修改参会人的姓名，也可以使用您在gitee.com的ID > > 更多资讯尽在：https://openeuler.org/zh/ > > > > > Hello! > > openEuler TC SIG invites you to attend the ZOOM conference(auto recording) will be held at 2021-12-01 10:00, > > The subject of the conference is openEuler 技术委员会例会, > > You can join the meeting at https://us06web.zoom.us/j/82159612220?pwd=ZlNxWkEwY1MyUlQ3SmtFNmNEVGtwQT09. > > Note: You are advised to change the participant name after joining the conference or use your ID at gitee.com. > > More information: https://openeuler.org/en/ > > _______________________________________________ > Dev mailing list -- dev(a)openeuler.org > To unsubscribe send an email to dev-leave(a)openeuler.org > _______________________________________________ > Dev mailing list -- dev(a)openeuler.org > To unsubscribe send an email to dev-leave(a)openeuler.org > _______________________________________________ > Tc mailing list -- tc(a)openeuler.org > To unsubscribe send an email to tc-leave(a)openeuler.org >

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Re: 【openEuler】Netswift Giga NIC驱动合入openEuler20.03
by Xie XiuQi 03 Dec '21

03 Dec '21

On 2021/12/3 15:17, 郑振鹏 wrote: > 您好， > > 目前我只在x86平台上测试我此次提交的patch，如果完成arm平台测试我再提交新的patch。感谢。 Netswift Giga NIC 对 22.03 （5.10内核）的支持，这个是不是也在做。 > > BR， > zhenpeng > > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > > **************************************************************** > > 郑振鹏(zheng zhenpeng) > > 北京网迅科技有限公司杭州分公司软件工程师 > > 浙江省杭州市西湖区文三路478号华星时代广场A座507室 310013 > > Beijing WangXun Technology Co., Ltd. Software Engineer. > > Room A507, HuaXing Times Square, No.478 West Wensan Road. > > West Lake District, Hangzhou City, 310013 ZHEJIANG, P.R.CHINA. > > > > Office: +86(0571)89807901-8014 > > Mobile: +86-13656681762 > > E-Mail: z <mailto:jianwang@trustnetic.com>henpengzheng(a)net-swift.com > > **************************************************************** > > > *发件人：* QiuLaibin <mailto:qiulaibin@huawei.com> > *发送时间：* 2021-12-03 15:01 > *收件人：* zhenpengzheng(a)net-swift.com <mailto:zhenpengzheng@net-swift.com> > *抄送：* Xiexiuqi <mailto:xiexiuqi@huawei.com>; yangyingliang(a)huawei.com <mailto:yangyingliang@huawei.com> > *主题：* 【openEuler】Netswift Giga NIC驱动合入openEuler20.03 > pengzheng您好： > > 非常感谢您的提交！ > > 目前我们正在向版本合入先前您针对openEuler提交的Netswift Giga NIC驱补丁集： > > [openEuler-1.0-LTS,1/2] net: ngbe: Add Netswift Giga NIC driver > [openEuler-1.0-LTS,2/2] x86/config: Enable netswift Giga NIC driver for x86 > > 但鉴于您在编译config只在X86的config中打开，因此我们需要确认是否该驱动只能支持X86平台；arm上是否可以打开支持，若arm相关的config误打开是否会引入问题。 > > best regard > Laibin Qiu > > >

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[PATCH openEuler-1.0-LTS] config: disable CONFIG_NGBE by default in hulk_defconfig
by Yang Yingliang 03 Dec '21

03 Dec '21

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4C4XW?from=project-issue CVE: NA --------------------------------------- Disable CONFIG_NGBE by default CONFIG_NGBE on ARM64. Reviewed-by: Cheng Jian <cj.chengjian(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- arch/arm64/configs/hulk_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/hulk_defconfig b/arch/arm64/configs/hulk_defconfig index fdf628f1fa028..e80f4b7fde56d 100644 --- a/arch/arm64/configs/hulk_defconfig +++ b/arch/arm64/configs/hulk_defconfig @@ -2491,6 +2491,7 @@ CONFIG_ICE=m CONFIG_FM10K=m CONFIG_NET_VENDOR_NETSWIFT=y CONFIG_TXGBE=m +# CONFIG_NGBE is not set # CONFIG_JME is not set # CONFIG_NET_VENDOR_MARVELL is not set CONFIG_NET_VENDOR_MELLANOX=y -- 2.25.1

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[PATCH openEuler-1.0-LTS 1/2] net: ngbe: Add Netswift Giga NIC driver
by Yang Yingliang 03 Dec '21

03 Dec '21

From: zhenpengzheng <zhenpengzheng(a)net-swift.com> driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4C4XW?from=project-issue CVE: NA ------------------------------------------ This patch contains main code of Netswift Giga NIC Driver which supports devices as follows: 1) Netswift WX1860AL_W 8088:0100[VID:DID] 2) Netswift WX1860A2 8088:0101[VID:DID] 3) Netswift WX1860A2S 8088:0102[VID:DID] 4) Netswift WX1860A4 8088:0103[VID:DID] 5) Netswift WX1860A4S 8088:0104[VID:DID] 6) Netswift WX1860AL2 8088:0105[VID:DID] 7) Netswift WX1860AL2S 8088:0106[VID:DID] 8) Netswift WX1860AL4 8088:0107[VID:DID] 9) Netswift WX1860AL4S 8088:0108[VID:DID] 10)Netswift WX1860NCSI 8088:0109[VID:DID] 11)Netswift WX1860A1 8088:010a[VID:DID] 12)Netswift WX1860AL1 8088:010b[VID:DID] Signed-off-by: zhenpengzheng <zhenpengzheng(a)net-swift.com> #openEuler_contributor Signed-off-by: Zhen Lei <thunder.leizhen(a)huawei.com> Signed-off-by: Laibin Qiu <qiulaibin(a)huawei.com> Acked-by: Xie XiuQi <xiexiuqi(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/net/ethernet/netswift/Kconfig | 66 + drivers/net/ethernet/netswift/Makefile | 1 + drivers/net/ethernet/netswift/ngbe/Makefile | 16 + drivers/net/ethernet/netswift/ngbe/ngbe.h | 1109 +++ .../net/ethernet/netswift/ngbe/ngbe_debugfs.c | 764 ++ .../net/ethernet/netswift/ngbe/ngbe_ethtool.c | 2756 +++++++ drivers/net/ethernet/netswift/ngbe/ngbe_hw.c | 5047 ++++++++++++ drivers/net/ethernet/netswift/ngbe/ngbe_hw.h | 280 + drivers/net/ethernet/netswift/ngbe/ngbe_lib.c | 701 ++ .../net/ethernet/netswift/ngbe/ngbe_main.c | 7119 +++++++++++++++++ drivers/net/ethernet/netswift/ngbe/ngbe_mbx.c | 687 ++ drivers/net/ethernet/netswift/ngbe/ngbe_mbx.h | 167 + .../net/ethernet/netswift/ngbe/ngbe_param.c | 839 ++ .../net/ethernet/netswift/ngbe/ngbe_pcierr.c | 257 + .../net/ethernet/netswift/ngbe/ngbe_pcierr.h | 23 + drivers/net/ethernet/netswift/ngbe/ngbe_phy.c | 1243 +++ drivers/net/ethernet/netswift/ngbe/ngbe_phy.h | 201 + .../net/ethernet/netswift/ngbe/ngbe_procfs.c | 908 +++ drivers/net/ethernet/netswift/ngbe/ngbe_ptp.c | 858 ++ .../net/ethernet/netswift/ngbe/ngbe_sriov.c | 1461 ++++ .../net/ethernet/netswift/ngbe/ngbe_sriov.h | 63 + .../net/ethernet/netswift/ngbe/ngbe_sysfs.c | 222 + .../net/ethernet/netswift/ngbe/ngbe_type.h | 2941 +++++++ 23 files changed, 27729 insertions(+) create mode 100644 drivers/net/ethernet/netswift/ngbe/Makefile create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe.h create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_debugfs.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_ethtool.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_hw.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_hw.h create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_lib.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_main.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_mbx.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_mbx.h create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_param.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.h create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_phy.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_phy.h create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_procfs.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_ptp.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_sriov.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_sriov.h create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.c create mode 100644 drivers/net/ethernet/netswift/ngbe/ngbe_type.h diff --git a/drivers/net/ethernet/netswift/Kconfig b/drivers/net/ethernet/netswift/Kconfig index c4b510b659ae9..58b0cfa917c63 100644 --- a/drivers/net/ethernet/netswift/Kconfig +++ b/drivers/net/ethernet/netswift/Kconfig @@ -17,4 +17,70 @@ if NET_VENDOR_NETSWIFT source "drivers/net/ethernet/netswift/txgbe/Kconfig" +config NGBE + tristate "Netswift PCI-Express Gigabit Ethernet support" + depends on PCI + imply PTP_1588_CLOCK + ---help--- + This driver supports Netswift gigabit ethernet adapters. + For more information on how to identify your adapter, go + to <http://www.net-swift.com> + + To compile this driver as a module, choose M here. The module + will be called ngbe. + +config NGBE_HWMON + bool "Netswift PCI-Express Gigabit adapters HWMON support" + default n + depends on NGBE && HWMON && !(NGBE=y && HWMON=m) + ---help--- + Say Y if you want to expose thermal sensor data on these devices. + + If unsure, say N. + +config NGBE_PROCFS + bool "Netswift PCI-Express Gigabit adapters procfs support" + default n + depends on NGBE && !NGBE_SYSFS + ---help--- + Say Y if you want to setup procfs for these devices. + + If unsure, say N. + +config NGBE_NO_LLI + bool "Netswift PCI-Express Gigabit adapters NO Low Latency Interrupt support" + default n + depends on NGBE + ---help--- + Say N if you want to enable LLI for these devices. + + If unsure, say Y. + +config NGBE_DEBUG_FS + bool "Netswift PCI-Express Gigabit adapters debugfs support" + default n + depends on NGBE + ---help--- + Say Y if you want to setup debugfs for these devices. + + If unsure, say N. + +config NGBE_POLL_LINK_STATUS + bool "Netswift PCI-Express Gigabit adapters poll mode support" + default n + depends on NGBE + ---help--- + Say Y if you want to turn these devices to poll mode instead of interrupt-trigged TX/RX. + + If unsure, say N. + +config NGBE_SYSFS + bool "Netswift PCI-Express Gigabit adapters sysfs support" + default n + depends on NGBE + ---help--- + Say Y if you want to setup sysfs for these devices. + + If unsure, say N. + endif # NET_VENDOR_NETSWIFT diff --git a/drivers/net/ethernet/netswift/Makefile b/drivers/net/ethernet/netswift/Makefile index 0845d08600bee..5690b6392ce2f 100644 --- a/drivers/net/ethernet/netswift/Makefile +++ b/drivers/net/ethernet/netswift/Makefile @@ -4,3 +4,4 @@ # obj-$(CONFIG_TXGBE) += txgbe/ +obj-$(CONFIG_NGBE) += ngbe/ diff --git a/drivers/net/ethernet/netswift/ngbe/Makefile b/drivers/net/ethernet/netswift/ngbe/Makefile new file mode 100644 index 0000000000000..dd6615eee4ede --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/Makefile @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd. +# +# Makefile for the Netswift Gigabit PCI Express ethernet driver +# + +obj-$(CONFIG_NGBE) += ngbe.o + +ngbe-objs := ngbe_main.o ngbe_ethtool.o \ + ngbe_hw.o ngbe_phy.o ngbe_sriov.o \ + ngbe_mbx.o ngbe_pcierr.o ngbe_param.o ngbe_lib.o ngbe_ptp.o + +ngbe-$(CONFIG_NGBE_HWMON) += ngbe_sysfs.o +ngbe-$(CONFIG_NGBE_DEBUG_FS) += ngbe_debugfs.o +ngbe-$(CONFIG_NGBE_PROCFS) += ngbe_procfs.o +ngbe-$(CONFIG_NGBE_SYSFS) += ngbe_sysfs.o diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe.h b/drivers/net/ethernet/netswift/ngbe/ngbe.h new file mode 100644 index 0000000000000..4e77777143a04 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe.h @@ -0,0 +1,1109 @@ +/* + * WangXun 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 _NGBE_H_ +#define _NGBE_H_ + +#include <net/ip.h> +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/ethtool.h> +#include <linux/if_vlan.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 <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/if_ether.h> +#include <linux/sched.h> + +#include "ngbe_type.h" + +/* Ether Types */ +#define NGBE_ETH_P_LLDP 0x88CC +#define NGBE_ETH_P_CNM 0x22E7 + +/* TX/RX descriptor defines */ +#define NGBE_DEFAULT_TXD 512 /* default ring size */ +#define NGBE_DEFAULT_TX_WORK 256 +#define NGBE_MAX_TXD 8192 +#define NGBE_MIN_TXD 128 + +#define NGBE_DEFAULT_RXD 512 /* default ring size */ +#define NGBE_DEFAULT_RX_WORK 256 +#define NGBE_MAX_RXD 8192 +#define NGBE_MIN_RXD 128 + +#define NGBE_ETH_P_LLDP 0x88CC + +/* flow control */ +#define NGBE_MIN_FCRTL 0x40 +#define NGBE_MAX_FCRTL 0x7FF80 +#define NGBE_MIN_FCRTH 0x600 +#define NGBE_MAX_FCRTH 0x7FFF0 +#define NGBE_DEFAULT_FCPAUSE 0xFFFF +#define NGBE_MIN_FCPAUSE 0 +#define NGBE_MAX_FCPAUSE 0xFFFF + +/* Supported Rx Buffer Sizes */ +#define NGBE_RXBUFFER_256 256 /* Used for skb receive header */ +#define NGBE_RXBUFFER_2K 2048 +#define NGBE_RXBUFFER_3K 3072 +#define NGBE_RXBUFFER_4K 4096 +#define NGBE_MAX_RXBUFFER 16384 /* largest size for single descriptor */ + +/* + * 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 NGBE_RX_HDR_SIZE NGBE_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 NGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define NGBE_RX_DMA_ATTR \ + (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING) + +enum ngbe_tx_flags { + /* cmd_type flags */ + NGBE_TX_FLAGS_HW_VLAN = 0x01, + NGBE_TX_FLAGS_TSO = 0x02, + NGBE_TX_FLAGS_TSTAMP = 0x04, + + /* olinfo flags */ + NGBE_TX_FLAGS_CC = 0x08, + NGBE_TX_FLAGS_IPV4 = 0x10, + NGBE_TX_FLAGS_CSUM = 0x20, + NGBE_TX_FLAGS_OUTER_IPV4 = 0x100, + NGBE_TX_FLAGS_LINKSEC = 0x200, + NGBE_TX_FLAGS_IPSEC = 0x400, + + /* software defined flags */ + NGBE_TX_FLAGS_SW_VLAN = 0x40, + NGBE_TX_FLAGS_FCOE = 0x80, +}; + +/* VLAN info */ +#define NGBE_TX_FLAGS_VLAN_MASK 0xffff0000 +#define NGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000 +#define NGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29 +#define NGBE_TX_FLAGS_VLAN_SHIFT 16 + +#define NGBE_MAX_RX_DESC_POLL 10 + +#define NGBE_MAX_VF_MC_ENTRIES 30 +#define NGBE_MAX_VF_FUNCTIONS 8 +#define MAX_EMULATION_MAC_ADDRS 16 +#define NGBE_MAX_PF_MACVLANS 15 +#define NGBE_VF_DEVICE_ID 0x1000 + +/* must account for pools assigned to VFs. */ +#ifdef CONFIG_PCI_IOV +#define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset) +#else +#define VMDQ_P(p) (p) +#endif + +#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[NGBE_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 NGBE_MAX_TXD_PWR 14 +#define NGBE_MAX_DATA_PER_TXD (1 << NGBE_MAX_TXD_PWR) + +/* Tx Descriptors needed, worst case */ +#define TXD_USE_COUNT(S) DIV_ROUND_UP((S), NGBE_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 ngbe_tx_buffer { + union ngbe_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 ngbe_rx_buffer { + struct sk_buff *skb; + dma_addr_t dma; + dma_addr_t page_dma; + struct page *page; + unsigned int page_offset; +}; + +struct ngbe_queue_stats { + u64 packets; + u64 bytes; +}; + +struct ngbe_tx_queue_stats { + u64 restart_queue; + u64 tx_busy; + u64 tx_done_old; +}; + +struct ngbe_rx_queue_stats { + u64 non_eop_descs; + u64 alloc_rx_page_failed; + u64 alloc_rx_buff_failed; + u64 csum_good_cnt; + u64 csum_err; +}; + +#define NGBE_TS_HDR_LEN 8 +enum ngbe_ring_state_t { + __NGBE_RX_3K_BUFFER, + __NGBE_RX_BUILD_SKB_ENABLED, + __NGBE_TX_XPS_INIT_DONE, + __NGBE_TX_DETECT_HANG, + __NGBE_HANG_CHECK_ARMED, + __NGBE_RX_HS_ENABLED, +}; + +struct ngbe_fwd_adapter { + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + struct net_device *vdev; + struct ngbe_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(__NGBE_RX_BUILD_SKB_ENABLED, &(ring)->state) + + +#define ring_is_hs_enabled(ring) \ + test_bit(__NGBE_RX_HS_ENABLED, &(ring)->state) +#define set_ring_hs_enabled(ring) \ + set_bit(__NGBE_RX_HS_ENABLED, &(ring)->state) +#define clear_ring_hs_enabled(ring) \ + clear_bit(__NGBE_RX_HS_ENABLED, &(ring)->state) +#define check_for_tx_hang(ring) \ + test_bit(__NGBE_TX_DETECT_HANG, &(ring)->state) +#define set_check_for_tx_hang(ring) \ + set_bit(__NGBE_TX_DETECT_HANG, &(ring)->state) +#define clear_check_for_tx_hang(ring) \ + clear_bit(__NGBE_TX_DETECT_HANG, &(ring)->state) + +struct ngbe_ring { + struct ngbe_ring *next; /* pointer to next ring in q_vector */ + struct ngbe_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 ngbe_fwd_adapter *accel; + void *desc; /* descriptor ring memory */ + union { + struct ngbe_tx_buffer *tx_buffer_info; + struct ngbe_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 ngbe_queue_stats stats; + struct u64_stats_sync syncp; + + union { + struct ngbe_tx_queue_stats tx_stats; + struct ngbe_rx_queue_stats rx_stats; + }; +} ____cacheline_internodealigned_in_smp; + +enum ngbe_ring_f_enum { + RING_F_NONE = 0, + RING_F_VMDQ, /* SR-IOV uses the same ring feature */ + RING_F_RSS, + RING_F_ARRAY_SIZE /* must be last in enum set */ +}; + +#define TGB_MAX_RX_QUEUES 16 +#define NGBE_MAX_TX_QUEUES 16 + +#define NGBE_MAX_RSS_INDICES 8 +#define NGBE_MAX_VMDQ_INDICES 8 +#define NGBE_MAX_FDIR_INDICES 8 +#define MAX_RX_QUEUES 8 +#define MAX_TX_QUEUES 8 +#define NGBE_MAX_L2A_QUEUES 4 +#define NGBE_BAD_L2A_QUEUE 3 + +#define NGBE_MAX_MACVLANS 8 + +struct ngbe_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 */ +}; + +/* + * 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 ngbe_rx_bufsz(struct ngbe_ring __maybe_unused *ring) +{ +#if MAX_SKB_FRAGS < 8 + return ALIGN(NGBE_MAX_RXBUFFER / MAX_SKB_FRAGS, 1024); +#else + return NGBE_RXBUFFER_2K; +#endif +} + +static inline unsigned int ngbe_rx_pg_order(struct ngbe_ring __maybe_unused *ring) +{ + return 0; +} +#define ngbe_rx_pg_size(_ring) (PAGE_SIZE << ngbe_rx_pg_order(_ring)) + +struct ngbe_ring_container { + struct ngbe_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 ngbe_for_each_ring(pos, head) \ + for (pos = (head).ring; pos != NULL; pos = pos->next) + +#define MAX_RX_PACKET_BUFFERS ((adapter->flags & NGBE_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 ngbe_q_vector { + struct ngbe_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 ngbe_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 ngbe_ring ring[0] ____cacheline_internodealigned_in_smp; +}; + +#ifdef CONFIG_NGBE_HWMON + +#define NGBE_HWMON_TYPE_TEMP 0 +#define NGBE_HWMON_TYPE_ALARMTHRESH 1 +#define NGBE_HWMON_TYPE_DALARMTHRESH 2 + +struct hwmon_attr { + struct device_attribute dev_attr; + struct ngbe_hw *hw; + struct ngbe_thermal_diode_data *sensor; + char name[19]; +}; + +struct hwmon_buff { + struct device *device; + struct hwmon_attr *hwmon_list; + unsigned int n_hwmon; +}; +#endif /* CONFIG_NGBE_HWMON */ + +/* + * microsecond values for various ITR rates shifted by 2 to fit itr register + * with the first 3 bits reserved 0 + */ +#define NGBE_70K_ITR 57 +#define NGBE_20K_ITR 200 +#define NGBE_4K_ITR 1024 +#define NGBE_7K_ITR 595 + +/* ngbe_test_staterr - tests bits in Rx descriptor status and error fields */ +static inline __le32 ngbe_test_staterr(union ngbe_rx_desc *rx_desc, + const u32 stat_err_bits) +{ + return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); +} + +/* ngbe_desc_unused - calculate if we have unused descriptors */ +static inline u16 ngbe_desc_unused(struct ngbe_ring *ring) +{ + u16 ntc = ring->next_to_clean; + u16 ntu = ring->next_to_use; + + return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1; +} + +#define NGBE_RX_DESC(R, i) \ + (&(((union ngbe_rx_desc *)((R)->desc))[i])) +#define NGBE_TX_DESC(R, i) \ + (&(((union ngbe_tx_desc *)((R)->desc))[i])) +#define NGBE_TX_CTXTDESC(R, i) \ + (&(((struct ngbe_tx_context_desc *)((R)->desc))[i])) + +#define NGBE_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 NGBE_MAX_MSIX_Q_VECTORS_EMERALD 9 + +struct ngbe_mac_addr { + u8 addr[ETH_ALEN]; + u16 state; /* bitmask */ + u64 pools; +}; + +#define NGBE_MAC_STATE_DEFAULT 0x1 +#define NGBE_MAC_STATE_MODIFIED 0x2 +#define NGBE_MAC_STATE_IN_USE 0x4 + +#ifdef CONFIG_NGBE_PROCFS +struct ngbe_therm_proc_data { + struct ngbe_hw *hw; + struct ngbe_thermal_diode_data *sensor_data; +}; +#endif + +/* + * 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 NGBE_MAX_MSIX_Q_VECTORS_EMERALD +#define MAX_MSIX_COUNT NGBE_MAX_MSIX_VECTORS_EMERALD + +#define MIN_MSIX_Q_VECTORS 1 +#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS) + +/* default to trying for four seconds */ +#define NGBE_TRY_LINK_TIMEOUT (4 * HZ) +#define NGBE_SFP_POLL_JIFFIES (2 * HZ) /* SFP poll every 2 seconds */ + +/** + * ngbe_adapter.flag + **/ +#define NGBE_FLAG_MSI_CAPABLE (u32)(1 << 0) +#define NGBE_FLAG_MSI_ENABLED (u32)(1 << 1) +#define NGBE_FLAG_MSIX_CAPABLE (u32)(1 << 2) +#define NGBE_FLAG_MSIX_ENABLED (u32)(1 << 3) +#ifndef CONFIG_NGBE_NO_LLI +#define NGBE_FLAG_LLI_PUSH (u32)(1 << 4) +#endif + +#define NGBE_FLAG_TPH_ENABLED (u32)(1 << 6) +#define NGBE_FLAG_TPH_CAPABLE (u32)(1 << 7) +#define NGBE_FLAG_TPH_ENABLED_DATA (u32)(1 << 8) + +#define NGBE_FLAG_MQ_CAPABLE (u32)(1 << 9) +#define NGBE_FLAG_DCB_ENABLED (u32)(1 << 10) +#define NGBE_FLAG_VMDQ_ENABLED (u32)(1 << 11) +#define NGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 12) +#define NGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 13) +#define NGBE_FLAG_NEED_ANC_CHECK (u32)(1 << 14) +#define NGBE_FLAG_FDIR_HASH_CAPABLE (u32)(1 << 15) +#define NGBE_FLAG_FDIR_PERFECT_CAPABLE (u32)(1 << 16) +#define NGBE_FLAG_SRIOV_CAPABLE (u32)(1 << 19) +#define NGBE_FLAG_SRIOV_ENABLED (u32)(1 << 20) +#define NGBE_FLAG_SRIOV_REPLICATION_ENABLE (u32)(1 << 21) +#define NGBE_FLAG_SRIOV_L2SWITCH_ENABLE (u32)(1 << 22) +#define NGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE (u32)(1 << 23) +#define NGBE_FLAG_RX_HWTSTAMP_ENABLED (u32)(1 << 24) +#define NGBE_FLAG_VXLAN_OFFLOAD_CAPABLE (u32)(1 << 25) +#define NGBE_FLAG_VXLAN_OFFLOAD_ENABLE (u32)(1 << 26) +#define NGBE_FLAG_RX_HWTSTAMP_IN_REGISTER (u32)(1 << 27) +#define NGBE_FLAG_NEED_ETH_PHY_RESET (u32)(1 << 28) +#define NGBE_FLAG_RX_HS_ENABLED (u32)(1 << 30) +#define NGBE_FLAG_LINKSEC_ENABLED (u32)(1 << 31) +#define NGBE_FLAG_IPSEC_ENABLED (u32)(1 << 5) + +/* preset defaults */ +#define NGBE_FLAGS_SP_INIT (NGBE_FLAG_MSI_CAPABLE \ + | NGBE_FLAG_MSIX_CAPABLE \ + | NGBE_FLAG_MQ_CAPABLE \ + | NGBE_FLAG_SRIOV_CAPABLE) + +/** + * ngbe_adapter.flag2 + **/ +#define NGBE_FLAG2_RSC_CAPABLE (1U << 0) +#define NGBE_FLAG2_RSC_ENABLED (1U << 1) +#define NGBE_FLAG2_TEMP_SENSOR_CAPABLE (1U << 3) +#define NGBE_FLAG2_TEMP_SENSOR_EVENT (1U << 4) +#define NGBE_FLAG2_SEARCH_FOR_SFP (1U << 5) +#define NGBE_FLAG2_SFP_NEEDS_RESET (1U << 6) +#define NGBE_FLAG2_PF_RESET_REQUESTED (1U << 7) +#define NGBE_FLAG2_FDIR_REQUIRES_REINIT (1U << 8) +#define NGBE_FLAG2_RSS_FIELD_IPV4_UDP (1U << 9) +#define NGBE_FLAG2_RSS_FIELD_IPV6_UDP (1U << 10) +#define NGBE_FLAG2_RSS_ENABLED (1U << 12) +#define NGBE_FLAG2_PTP_PPS_ENABLED (1U << 11) +#define NGBE_FLAG2_EEE_CAPABLE (1U << 14) +#define NGBE_FLAG2_EEE_ENABLED (1U << 15) +#define NGBE_FLAG2_VXLAN_REREG_NEEDED (1U << 16) +#define NGBE_FLAG2_DEV_RESET_REQUESTED (1U << 18) +#define NGBE_FLAG2_RESET_INTR_RECEIVED (1U << 19) +#define NGBE_FLAG2_GLOBAL_RESET_REQUESTED (1U << 20) +#define NGBE_FLAG2_MNG_REG_ACCESS_DISABLED (1U << 22) +#define NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP (1U << 23) +#define NGBE_FLAG2_PCIE_NEED_RECOVER (1U << 31) + +#define NGBE_SET_FLAG(_input, _flag, _result) \ + ((_flag <= _result) ? \ + ((u32)(_input & _flag) * (_result / _flag)) : \ + ((u32)(_input & _flag) / (_flag / _result))) + +enum ngbe_isb_idx { + NGBE_ISB_HEADER, + NGBE_ISB_MISC, + NGBE_ISB_VEC0, + NGBE_ISB_VEC1, + NGBE_ISB_MAX +}; + +/* board specific private data structure */ +struct ngbe_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; + + /* 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 ngbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp; + + u64 restart_queue; + u64 lsc_int; + u32 tx_timeout_count; + + /* RX */ + struct ngbe_ring *rx_ring[MAX_RX_QUEUES]; + u64 hw_csum_rx_error; + u64 hw_csum_rx_good; + u64 hw_rx_no_dma_resources; + u64 non_eop_descs; + u32 alloc_rx_page_failed; + u32 alloc_rx_buff_failed; + + struct ngbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS]; + +#ifdef HAVE_DCBNL_IEEE + struct ieee_pfc *ngbe_ieee_pfc; + struct ieee_ets *ngbe_ieee_ets; +#endif + enum ngbe_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 ngbe_ring_feature ring_feature[RING_F_ARRAY_SIZE]; + struct msix_entry *msix_entries; + + u64 test_icr; + struct ngbe_ring test_tx_ring; + struct ngbe_ring test_rx_ring; + + /* structs defined in ngbe_hw.h */ + struct ngbe_hw hw; + u16 msg_enable; + struct ngbe_hw_stats stats; +#ifndef CONFIG_NGBE_NO_LLI + u32 lli_port; + u32 lli_size; + u32 lli_etype; + u32 lli_vlan_pri; +#endif /* CONFIG_NGBE_NO_LLI */ + + 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; +#ifdef CONFIG_NGBE_POLL_LINK_STATUS + struct timer_list link_check_timer; +#endif + u32 atr_sample_rate; + 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 ngbe_adapter *); + + DECLARE_BITMAP(active_vfs, NGBE_MAX_VF_FUNCTIONS); + unsigned int num_vfs; + struct vf_data_storage *vfinfo; + struct vf_macvlans vf_mvs; + struct vf_macvlans *mv_list; +#ifdef CONFIG_PCI_IOV + u32 timer_event_accumulator; + u32 vferr_refcount; +#endif + struct ngbe_mac_addr *mac_table; + + __le16 vxlan_port; + __le16 geneve_port; + +#ifdef CONFIG_NGBE_SYSFS +#ifdef CONFIG_NGBE_HWMON + struct hwmon_buff ngbe_hwmon_buff; +#endif /* CONFIG_NGBE_HWMON */ +#else /* CONFIG_NGBE_SYSFS */ +#ifdef CONFIG_NGBE_PROCFS + struct proc_dir_entry *eth_dir; + struct proc_dir_entry *info_dir; + u64 old_lsc; + struct proc_dir_entry *therm_dir; + struct ngbe_therm_proc_data therm_data; +#endif /* CONFIG_NGBE_PROCFS */ +#endif /* CONFIG_NGBE_SYSFS */ + +#ifdef CONFIG_NGBE_DEBUG_FS + struct dentry *ngbe_dbg_adapter; +#endif /* CONFIG_NGBE_DEBUG_FS */ + u8 default_up; + unsigned long fwd_bitmask; /* bitmask indicating in use pools */ + unsigned long tx_timeout_last_recovery; + u32 tx_timeout_recovery_level; + +#define NGBE_MAX_RETA_ENTRIES 128 + u8 rss_indir_tbl[NGBE_MAX_RETA_ENTRIES]; +#define NGBE_RSS_KEY_SIZE 40 + u32 rss_key[NGBE_RSS_KEY_SIZE / sizeof(u32)]; + + void *ipsec; + + /* misc interrupt status block */ + dma_addr_t isb_dma; + u32 *isb_mem; + u32 isb_tag[NGBE_ISB_MAX]; + + u32 hang_cnt; +}; + +static inline u32 ngbe_misc_isb(struct ngbe_adapter *adapter, + enum ngbe_isb_idx idx) +{ + u32 cur_tag = 0; + u32 cur_diff = 0; + + cur_tag = adapter->isb_mem[NGBE_ISB_HEADER]; + cur_diff = cur_tag - adapter->isb_tag[idx]; + + adapter->isb_tag[idx] = cur_tag; + + return cpu_to_le32(adapter->isb_mem[idx]); +} + +static inline u8 ngbe_max_rss_indices(struct ngbe_adapter *adapter) +{ + return NGBE_MAX_RSS_INDICES; +} + +enum ngbe_state_t { + __NGBE_TESTING, + __NGBE_RESETTING, + __NGBE_DOWN, + __NGBE_HANGING, + __NGBE_DISABLED, + __NGBE_REMOVING, + __NGBE_SERVICE_SCHED, + __NGBE_SERVICE_INITED, + __NGBE_IN_SFP_INIT, + __NGBE_PTP_RUNNING, + __NGBE_PTP_TX_IN_PROGRESS, +}; + +struct ngbe_cb { + dma_addr_t dma; + u16 append_cnt; /* number of skb's appended */ + bool page_released; + bool dma_released; +}; +#define NGBE_CB(skb) ((struct ngbe_cb *)(skb)->cb) + +/* ESX ngbe CIM IOCTL definition */ + +#ifdef CONFIG_NGBE_SYSFS +void ngbe_sysfs_exit(struct ngbe_adapter *adapter); +int ngbe_sysfs_init(struct ngbe_adapter *adapter); +#endif /* CONFIG_NGBE_SYSFS */ +#ifdef CONFIG_NGBE_PROCFS +void ngbe_procfs_exit(struct ngbe_adapter *adapter); +int ngbe_procfs_init(struct ngbe_adapter *adapter); +int ngbe_procfs_topdir_init(void); +void ngbe_procfs_topdir_exit(void); +#endif /* CONFIG_NGBE_PROCFS */ + +/* needed by ngbe_main.c */ +int ngbe_validate_mac_addr(u8 *mc_addr); +void ngbe_check_options(struct ngbe_adapter *adapter); +void ngbe_assign_netdev_ops(struct net_device *netdev); + +/* needed by ngbe_ethtool.c */ +extern char ngbe_driver_name[]; +extern const char ngbe_driver_version[]; + +void ngbe_irq_disable(struct ngbe_adapter *adapter); +void ngbe_irq_enable(struct ngbe_adapter *adapter, bool queues, bool flush); +int ngbe_open(struct net_device *netdev); +int ngbe_close(struct net_device *netdev); +void ngbe_up(struct ngbe_adapter *adapter); +void ngbe_down(struct ngbe_adapter *adapter); +void ngbe_reinit_locked(struct ngbe_adapter *adapter); +void ngbe_reset(struct ngbe_adapter *adapter); +void ngbe_set_ethtool_ops(struct net_device *netdev); +int ngbe_setup_rx_resources(struct ngbe_ring *); +int ngbe_setup_tx_resources(struct ngbe_ring *); +void ngbe_free_rx_resources(struct ngbe_ring *); +void ngbe_free_tx_resources(struct ngbe_ring *); +void ngbe_configure_rx_ring(struct ngbe_adapter *, + struct ngbe_ring *); +void ngbe_configure_tx_ring(struct ngbe_adapter *, + struct ngbe_ring *); +void ngbe_update_stats(struct ngbe_adapter *adapter); +int ngbe_init_interrupt_scheme(struct ngbe_adapter *adapter); +void ngbe_reset_interrupt_capability(struct ngbe_adapter *adapter); +void ngbe_set_interrupt_capability(struct ngbe_adapter *adapter); +void ngbe_clear_interrupt_scheme(struct ngbe_adapter *adapter); +netdev_tx_t ngbe_xmit_frame_ring(struct sk_buff *, + struct ngbe_adapter *, + struct ngbe_ring *); +void ngbe_unmap_and_free_tx_resource(struct ngbe_ring *, + struct ngbe_tx_buffer *); +void ngbe_alloc_rx_buffers(struct ngbe_ring *, u16); + +void ngbe_set_rx_mode(struct net_device *netdev); +int ngbe_write_mc_addr_list(struct net_device *netdev); +int ngbe_setup_tc(struct net_device *dev, u8 tc); +void ngbe_tx_ctxtdesc(struct ngbe_ring *, u32, u32, u32, u32); +void ngbe_do_reset(struct net_device *netdev); +void ngbe_write_eitr(struct ngbe_q_vector *q_vector); +int ngbe_poll(struct napi_struct *napi, int budget); +void ngbe_disable_rx_queue(struct ngbe_adapter *adapter, + struct ngbe_ring *); +void ngbe_vlan_strip_enable(struct ngbe_adapter *adapter); +void ngbe_vlan_strip_disable(struct ngbe_adapter *adapter); + +#ifdef CONFIG_NGBE_DEBUG_FS +void ngbe_dbg_adapter_init(struct ngbe_adapter *adapter); +void ngbe_dbg_adapter_exit(struct ngbe_adapter *adapter); +void ngbe_dbg_init(void); +void ngbe_dbg_exit(void); +void ngbe_dump(struct ngbe_adapter *adapter); +#endif /* CONFIG_NGBE_DEBUG_FS */ + +static inline struct netdev_queue *txring_txq(const struct ngbe_ring *ring) +{ + return netdev_get_tx_queue(ring->netdev, ring->queue_index); +} + +int ngbe_wol_supported(struct ngbe_adapter *adapter); +int ngbe_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd); +int ngbe_write_uc_addr_list(struct net_device *netdev, int pool); +void ngbe_full_sync_mac_table(struct ngbe_adapter *adapter); +int ngbe_add_mac_filter(struct ngbe_adapter *adapter, + u8 *addr, u16 pool); +int ngbe_del_mac_filter(struct ngbe_adapter *adapter, + u8 *addr, u16 pool); +int ngbe_available_rars(struct ngbe_adapter *adapter); +void ngbe_vlan_mode(struct net_device *, u32); + +void ngbe_ptp_init(struct ngbe_adapter *adapter); +void ngbe_ptp_stop(struct ngbe_adapter *adapter); +void ngbe_ptp_suspend(struct ngbe_adapter *adapter); +void ngbe_ptp_overflow_check(struct ngbe_adapter *adapter); +void ngbe_ptp_rx_hang(struct ngbe_adapter *adapter); +void ngbe_ptp_rx_hwtstamp(struct ngbe_adapter *adapter, struct sk_buff *skb); +int ngbe_ptp_set_ts_config(struct ngbe_adapter *adapter, struct ifreq *ifr); +int ngbe_ptp_get_ts_config(struct ngbe_adapter *adapter, struct ifreq *ifr); +void ngbe_ptp_start_cyclecounter(struct ngbe_adapter *adapter); +void ngbe_ptp_reset(struct ngbe_adapter *adapter); +void ngbe_ptp_check_pps_event(struct ngbe_adapter *adapter); + +#ifdef CONFIG_PCI_IOV +void ngbe_sriov_reinit(struct ngbe_adapter *adapter); +#endif + +void ngbe_set_rx_drop_en(struct ngbe_adapter *adapter); + +u32 ngbe_rss_indir_tbl_entries(struct ngbe_adapter *adapter); +void ngbe_store_reta(struct ngbe_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 NGBE_INTR_ALL (~0ULL) +#define NGBE_INTR_ALL 0x1FF +#define NGBE_INTR_MISC(A) (1ULL << (A)->num_q_vectors) +#define NGBE_INTR_MISC_VMDQ(A) (1ULL << ((A)->num_q_vectors + (A)->ring_feature[RING_F_VMDQ].offset)) +#define NGBE_INTR_QALL(A) (NGBE_INTR_MISC(A) - 1) +#define NGBE_INTR_Q(i) (1ULL << (i)) +static inline void ngbe_intr_enable(struct ngbe_hw *hw, u64 qmask) +{ + u32 mask; + + mask = (qmask & 0xFFFFFFFF); + if (mask) { + wr32(hw, NGBE_PX_IMC, mask); + } +} + +static inline void ngbe_intr_disable(struct ngbe_hw *hw, u64 qmask) +{ + u32 mask; + + mask = (qmask & 0xFFFFFFFF); + if (mask) + wr32(hw, NGBE_PX_IMS, mask); +} + +static inline void ngbe_intr_trigger(struct ngbe_hw *hw, u64 qmask) +{ + u32 mask; + + mask = (qmask & 0xFFFFFFFF); + if (mask) + wr32(hw, NGBE_PX_ICS, mask); +} + +#define NGBE_RING_SIZE(R) ((R)->count < NGBE_MAX_TXD ? (R)->count / 128 : 0) + + +#define NGBE_CPU_TO_BE16(_x) cpu_to_be16(_x) +#define NGBE_BE16_TO_CPU(_x) be16_to_cpu(_x) +#define NGBE_CPU_TO_BE32(_x) cpu_to_be32(_x) +#define NGBE_BE32_TO_CPU(_x) be32_to_cpu(_x) + +#define msec_delay(_x) msleep(_x) + +#define usec_delay(_x) udelay(_x) + +#define STATIC static + +#define NGBE_NAME "ngbe" + +#define DPRINTK(nlevel, klevel, fmt, args...) \ + ((void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \ + printk(KERN_##klevel NGBE_NAME ": %s: %s: " fmt, \ + adapter->netdev->name, \ + __func__, ## args))) + +#define ngbe_emerg(fmt, ...) printk(KERN_EMERG fmt, ## __VA_ARGS__) +#define ngbe_alert(fmt, ...) printk(KERN_ALERT fmt, ## __VA_ARGS__) +#define ngbe_crit(fmt, ...) printk(KERN_CRIT fmt, ## __VA_ARGS__) +#define ngbe_error(fmt, ...) printk(KERN_ERR fmt, ## __VA_ARGS__) +#define ngbe_warn(fmt, ...) printk(KERN_WARNING fmt, ## __VA_ARGS__) +#define ngbe_notice(fmt, ...) printk(KERN_NOTICE fmt, ## __VA_ARGS__) +#define ngbe_info(fmt, ...) printk(KERN_INFO fmt, ## __VA_ARGS__) +#define ngbe_print(fmt, ...) printk(KERN_DEBUG fmt, ## __VA_ARGS__) +#define ngbe_trace(fmt, ...) printk(KERN_INFO fmt, ## __VA_ARGS__) + +#define ngbe_debug(fmt, ...) do {} while (0) + +#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) + +#define NGBE_SFP_DETECT_RETRIES 2 + +struct ngbe_hw; +struct ngbe_msg { + u16 msg_enable; +}; +struct net_device *ngbe_hw_to_netdev(const struct ngbe_hw *hw); +struct ngbe_msg *ngbe_hw_to_msg(const struct ngbe_hw *hw); + +static inline struct device *pci_dev_to_dev(struct pci_dev *pdev) +{ + return &pdev->dev; +} + +#define hw_dbg(hw, format, arg...) \ + netdev_dbg(ngbe_hw_to_netdev(hw), format, ## arg) +#define hw_err(hw, format, arg...) \ + netdev_err(ngbe_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 NGBE_FAILED_READ_CFG_DWORD 0xffffffffU +#define NGBE_FAILED_READ_CFG_WORD 0xffffU +#define NGBE_FAILED_READ_CFG_BYTE 0xffU + +extern u32 ngbe_read_reg(struct ngbe_hw *hw, u32 reg, bool quiet); +extern u16 ngbe_read_pci_cfg_word(struct ngbe_hw *hw, u32 reg); +extern void ngbe_write_pci_cfg_word(struct ngbe_hw *hw, u32 reg, u16 value); + +#define NGBE_READ_PCIE_WORD ngbe_read_pci_cfg_word +#define NGBE_WRITE_PCIE_WORD ngbe_write_pci_cfg_word +#define NGBE_R32_Q(h, r) ngbe_read_reg(h, r, true) + +#ifndef writeq +#define writeq(val, addr) do { writel((u32) (val), addr); \ + writel((u32) (val >> 32), (addr + 4)); \ + } while (0); +#endif + +#define NGBE_EEPROM_GRANT_ATTEMPS 100 +#define NGBE_HTONL(_i) htonl(_i) +#define NGBE_NTOHL(_i) ntohl(_i) +#define NGBE_NTOHS(_i) ntohs(_i) +#define NGBE_CPU_TO_LE32(_i) cpu_to_le32(_i) +#define NGBE_LE32_TO_CPUS(_i) le32_to_cpus(_i) + +enum { + NGBE_ERROR_SOFTWARE, + NGBE_ERROR_POLLING, + NGBE_ERROR_INVALID_STATE, + NGBE_ERROR_UNSUPPORTED, + NGBE_ERROR_ARGUMENT, + NGBE_ERROR_CAUTION, +}; + +#define ERROR_REPORT(level, format, arg...) do { \ + switch (level) { \ + case NGBE_ERROR_SOFTWARE: \ + case NGBE_ERROR_CAUTION: \ + case NGBE_ERROR_POLLING: \ + netif_warn(ngbe_hw_to_msg(hw), drv, ngbe_hw_to_netdev(hw), \ + format, ## arg); \ + break; \ + case NGBE_ERROR_INVALID_STATE: \ + case NGBE_ERROR_UNSUPPORTED: \ + case NGBE_ERROR_ARGUMENT: \ + netif_err(ngbe_hw_to_msg(hw), hw, ngbe_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) + +#endif /* _NGBE_H_ */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_debugfs.c b/drivers/net/ethernet/netswift/ngbe/ngbe_debugfs.c new file mode 100644 index 0000000000000..6710dff494796 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_debugfs.c @@ -0,0 +1,764 @@ +/* + * WangXun 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 "ngbe.h" + +#ifdef CONFIG_NGBE_DEBUG_FS +#include <linux/debugfs.h> +#include <linux/module.h> + +static struct dentry *ngbe_dbg_root; +static int ngbe_data_mode; + +#define NGBE_DATA_FUNC(dm) ((dm) & ~0xFFFF) +#define NGBE_DATA_ARGS(dm) ((dm) & 0xFFFF) +enum ngbe_data_func { + NGBE_FUNC_NONE = (0 << 16), + NGBE_FUNC_DUMP_BAR = (1 << 16), + NGBE_FUNC_DUMP_RDESC = (2 << 16), + NGBE_FUNC_DUMP_TDESC = (3 << 16), + NGBE_FUNC_FLASH_READ = (4 << 16), + NGBE_FUNC_FLASH_WRITE = (5 << 16), +}; + +/** + * data operation + **/ +ssize_t +ngbe_simple_read_from_pcibar(struct ngbe_adapter *adapter, int res, + void __user *buf, size_t size, loff_t *ppos) +{ + loff_t pos = *ppos; + u32 miss, len, limit = pci_resource_len(adapter->pdev, res); + + if (pos < 0) + return 0; + + limit = (pos + size <= limit ? pos + size : limit); + for (miss = 0; pos < limit && !miss; buf += len, pos += len) { + u32 val = 0, reg = round_down(pos, 4); + u32 off = pos - reg; + + len = (reg + 4 <= limit ? 4 - off : 4 - off - (limit - reg - 4)); + val = ngbe_rd32(adapter->io_addr + reg); + miss = copy_to_user(buf, &val + off, len); + } + + size = pos - *ppos - miss; + *ppos += size; + + return size; +} + +ssize_t +ngbe_simple_read_from_flash(struct ngbe_adapter *adapter, + void __user *buf, size_t size, loff_t *ppos) +{ + struct ngbe_hw *hw = &adapter->hw; + loff_t pos = *ppos; + size_t ret = 0; + loff_t rpos, rtail; + void __user *to = buf; + size_t available = adapter->hw.flash.dword_size << 2; + + if (pos < 0) + return -EINVAL; + if (pos >= available || !size) + return 0; + if (size > available - pos) + size = available - pos; + + rpos = round_up(pos, 4); + rtail = round_down(pos + size, 4); + if (rtail < rpos) + return 0; + + to += rpos - pos; + while (rpos <= rtail) { + u32 value = ngbe_rd32(adapter->io_addr + rpos); + if (TCALL(hw, flash.ops.write_buffer, rpos>>2, 1, &value)) { + ret = size; + break; + } + if (4 == copy_to_user(to, &value, 4)) { + ret = size; + break; + } + to += 4; + rpos += 4; + } + + if (ret == size) + return -EFAULT; + size -= ret; + *ppos = pos + size; + return size; +} + +ssize_t +ngbe_simple_write_to_flash(struct ngbe_adapter *adapter, + const void __user *from, size_t size, loff_t *ppos, size_t available) +{ + return size; +} + +static ssize_t +ngbe_dbg_data_ops_read(struct file *filp, char __user *buffer, + size_t size, loff_t *ppos) +{ + struct ngbe_adapter *adapter = filp->private_data; + u32 func = NGBE_DATA_FUNC(ngbe_data_mode); + + rmb(); + + switch (func) { + case NGBE_FUNC_DUMP_BAR: { + u32 bar = NGBE_DATA_ARGS(ngbe_data_mode); + + return ngbe_simple_read_from_pcibar(adapter, bar, buffer, size, + ppos); + break; + } + case NGBE_FUNC_FLASH_READ: { + return ngbe_simple_read_from_flash(adapter, buffer, size, ppos); + break; + } + case NGBE_FUNC_DUMP_RDESC: { + struct ngbe_ring *ring; + u32 queue = NGBE_DATA_ARGS(ngbe_data_mode); + + if (queue >= adapter->num_rx_queues) + return 0; + queue += VMDQ_P(0) * adapter->queues_per_pool; + ring = adapter->rx_ring[queue]; + + return simple_read_from_buffer(buffer, size, ppos, + ring->desc, ring->size); + break; + } + case NGBE_FUNC_DUMP_TDESC: { + struct ngbe_ring *ring; + u32 queue = NGBE_DATA_ARGS(ngbe_data_mode); + + if (queue >= adapter->num_tx_queues) + return 0; + queue += VMDQ_P(0) * adapter->queues_per_pool; + ring = adapter->tx_ring[queue]; + + return simple_read_from_buffer(buffer, size, ppos, + ring->desc, ring->size); + break; + } + default: + break; + } + + return 0; +} + +static ssize_t +ngbe_dbg_data_ops_write(struct file *filp, + const char __user *buffer, + size_t size, loff_t *ppos) +{ + struct ngbe_adapter *adapter = filp->private_data; + u32 func = NGBE_DATA_FUNC(ngbe_data_mode); + + rmb(); + + switch (func) { + case NGBE_FUNC_FLASH_WRITE: { + u32 size = NGBE_DATA_ARGS(ngbe_data_mode); + + if (size > adapter->hw.flash.dword_size << 2) + size = adapter->hw.flash.dword_size << 2; + + return ngbe_simple_write_to_flash(adapter, buffer, size, ppos, size); + break; + } + default: + break; + } + + return size; +} +static struct file_operations ngbe_dbg_data_ops_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = ngbe_dbg_data_ops_read, + .write = ngbe_dbg_data_ops_write, +}; + +/** + * reg_ops operation + **/ +static char ngbe_dbg_reg_ops_buf[256] = ""; +static ssize_t +ngbe_dbg_reg_ops_read(struct file *filp, char __user *buffer, + size_t count, loff_t *ppos) +{ + struct ngbe_adapter *adapter = filp->private_data; + char *buf; + int len; + + /* don't allow partial reads */ + if (*ppos != 0) + return 0; + + buf = kasprintf(GFP_KERNEL, "%s: mode=0x%08x\n%s\n", + adapter->netdev->name, ngbe_data_mode, + ngbe_dbg_reg_ops_buf); + if (!buf) + return -ENOMEM; + + if (count < strlen(buf)) { + kfree(buf); + return -ENOSPC; + } + + len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); + + kfree(buf); + return len; +} + +static ssize_t +ngbe_dbg_reg_ops_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + struct ngbe_adapter *adapter = filp->private_data; + char *pc = ngbe_dbg_reg_ops_buf; + int len; + + /* don't allow partial writes */ + if (*ppos != 0) + return 0; + if (count >= sizeof(ngbe_dbg_reg_ops_buf)) + return -ENOSPC; + + len = simple_write_to_buffer(ngbe_dbg_reg_ops_buf, + sizeof(ngbe_dbg_reg_ops_buf)-1, + ppos, + buffer, + count); + if (len < 0) + return len; + + pc[len] = '\0'; + + if (strncmp(pc, "dump", 4) == 0) { + u32 mode = 0; + u16 args; + + pc += 4; + pc += strspn(pc, " \t"); + + if (!strncmp(pc, "bar", 3)) { + pc += 3; + mode = NGBE_FUNC_DUMP_BAR; + } else if (!strncmp(pc, "rdesc", 5)) { + pc += 5; + mode = NGBE_FUNC_DUMP_RDESC; + } else if (!strncmp(pc, "tdesc", 5)) { + pc += 5; + mode = NGBE_FUNC_DUMP_TDESC; + } else { + ngbe_dump(adapter); + } + + if (mode && 1 == sscanf(pc, "%hu", &args)) { + mode |= args; + } + + ngbe_data_mode = mode; + } else if (strncmp(pc, "flash", 4) == 0) { + u32 mode = 0; + u16 args; + + pc += 5; + pc += strspn(pc, " \t"); + if (!strncmp(pc, "read", 3)) { + pc += 4; + mode = NGBE_FUNC_FLASH_READ; + } else if (!strncmp(pc, "write", 5)) { + pc += 5; + mode = NGBE_FUNC_FLASH_WRITE; + } + + if (mode && 1 == sscanf(pc, "%hu", &args)) { + mode |= args; + } + + ngbe_data_mode = mode; + } else if (strncmp(ngbe_dbg_reg_ops_buf, "write", 5) == 0) { + u32 reg, value; + int cnt; + cnt = sscanf(&ngbe_dbg_reg_ops_buf[5], "%x %x", &reg, &value); + if (cnt == 2) { + wr32(&adapter->hw, reg, value); + e_dev_info("write: 0x%08x = 0x%08x\n", reg, value); + } else { + e_dev_info("write <reg> <value>\n"); + } + } else if (strncmp(ngbe_dbg_reg_ops_buf, "read", 4) == 0) { + u32 reg, value; + int cnt; + cnt = sscanf(&ngbe_dbg_reg_ops_buf[4], "%x", &reg); + if (cnt == 1) { + value = rd32(&adapter->hw, reg); + e_dev_info("read 0x%08x = 0x%08x\n", reg, value); + } else { + e_dev_info("read <reg>\n"); + } + } else { + e_dev_info("Unknown command %s\n", ngbe_dbg_reg_ops_buf); + e_dev_info("Available commands:\n"); + e_dev_info(" read <reg>\n"); + e_dev_info(" write <reg> <value>\n"); + } + return count; +} + +static const struct file_operations ngbe_dbg_reg_ops_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = ngbe_dbg_reg_ops_read, + .write = ngbe_dbg_reg_ops_write, +}; + +/** + * netdev_ops operation + **/ +static char ngbe_dbg_netdev_ops_buf[256] = ""; +static ssize_t +ngbe_dbg_netdev_ops_read(struct file *filp, + char __user *buffer, + size_t count, loff_t *ppos) +{ + struct ngbe_adapter *adapter = filp->private_data; + char *buf; + int len; + + /* don't allow partial reads */ + if (*ppos != 0) + return 0; + + buf = kasprintf(GFP_KERNEL, "%s: mode=0x%08x\n%s\n", + adapter->netdev->name, ngbe_data_mode, + ngbe_dbg_netdev_ops_buf); + if (!buf) + return -ENOMEM; + + if (count < strlen(buf)) { + kfree(buf); + return -ENOSPC; + } + + len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); + + kfree(buf); + return len; +} + +static ssize_t +ngbe_dbg_netdev_ops_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + struct ngbe_adapter *adapter = filp->private_data; + int len; + + /* don't allow partial writes */ + if (*ppos != 0) + return 0; + if (count >= sizeof(ngbe_dbg_netdev_ops_buf)) + return -ENOSPC; + + len = simple_write_to_buffer(ngbe_dbg_netdev_ops_buf, + sizeof(ngbe_dbg_netdev_ops_buf)-1, + ppos, + buffer, + count); + if (len < 0) + return len; + + ngbe_dbg_netdev_ops_buf[len] = '\0'; + + if (strncmp(ngbe_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { + adapter->netdev->netdev_ops->ndo_tx_timeout(adapter->netdev); + e_dev_info("tx_timeout called\n"); + } else { + e_dev_info("Unknown command: %s\n", ngbe_dbg_netdev_ops_buf); + e_dev_info("Available commands:\n"); + e_dev_info(" tx_timeout\n"); + } + return count; +} + +static struct file_operations ngbe_dbg_netdev_ops_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = ngbe_dbg_netdev_ops_read, + .write = ngbe_dbg_netdev_ops_write, +}; + +/** + * ngbe_dbg_adapter_init - setup the debugfs directory for the adapter + * @adapter: the adapter that is starting up + **/ +void ngbe_dbg_adapter_init(struct ngbe_adapter *adapter) +{ + const char *name = pci_name(adapter->pdev); + struct dentry *pfile; + + adapter->ngbe_dbg_adapter = debugfs_create_dir(name, ngbe_dbg_root); + if (!adapter->ngbe_dbg_adapter) { + e_dev_err("debugfs entry for %s failed\n", name); + return; + } + + pfile = debugfs_create_file("data", 0600, + adapter->ngbe_dbg_adapter, adapter, + &ngbe_dbg_data_ops_fops); + if (!pfile) + e_dev_err("debugfs netdev_ops for %s failed\n", name); + + pfile = debugfs_create_file("reg_ops", 0600, + adapter->ngbe_dbg_adapter, adapter, + &ngbe_dbg_reg_ops_fops); + if (!pfile) + e_dev_err("debugfs reg_ops for %s failed\n", name); + + pfile = debugfs_create_file("netdev_ops", 0600, + adapter->ngbe_dbg_adapter, adapter, + &ngbe_dbg_netdev_ops_fops); + if (!pfile) + e_dev_err("debugfs netdev_ops for %s failed\n", name); +} + +/** + * ngbe_dbg_adapter_exit - clear out the adapter's debugfs entries + * @pf: the pf that is stopping + **/ +void ngbe_dbg_adapter_exit(struct ngbe_adapter *adapter) +{ + if (adapter->ngbe_dbg_adapter) + debugfs_remove_recursive(adapter->ngbe_dbg_adapter); + adapter->ngbe_dbg_adapter = NULL; +} + +/** + * ngbe_dbg_init - start up debugfs for the driver + **/ +void ngbe_dbg_init(void) +{ + ngbe_dbg_root = debugfs_create_dir(ngbe_driver_name, NULL); + if (ngbe_dbg_root == NULL) + pr_err("init of debugfs failed\n"); +} + +/** + * ngbe_dbg_exit - clean out the driver's debugfs entries + **/ +void ngbe_dbg_exit(void) +{ + debugfs_remove_recursive(ngbe_dbg_root); +} + +#endif /* CONFIG_NGBE_DEBUG_FS */ + +struct ngbe_reg_info { + u32 offset; + u32 length; + char *name; +}; + +static struct ngbe_reg_info ngbe_reg_info_tbl[] = { + + /* General Registers */ + {NGBE_CFG_PORT_CTL, 1, "CTRL"}, + {NGBE_CFG_PORT_ST, 1, "STATUS"}, + + /* RX Registers */ + {NGBE_PX_RR_CFG(0), 1, "SRRCTL"}, + {NGBE_PX_RR_RP(0), 1, "RDH"}, + {NGBE_PX_RR_WP(0), 1, "RDT"}, + {NGBE_PX_RR_CFG(0), 1, "RXDCTL"}, + {NGBE_PX_RR_BAL(0), 1, "RDBAL"}, + {NGBE_PX_RR_BAH(0), 1, "RDBAH"}, + + /* TX Registers */ + {NGBE_PX_TR_BAL(0), 1, "TDBAL"}, + {NGBE_PX_TR_BAH(0), 1, "TDBAH"}, + {NGBE_PX_TR_RP(0), 1, "TDH"}, + {NGBE_PX_TR_WP(0), 1, "TDT"}, + {NGBE_PX_TR_CFG(0), 1, "TXDCTL"}, + + /* MACVLAN */ + {NGBE_PSR_MAC_SWC_VM, 128, "PSR_MAC_SWC_VM"}, + {NGBE_PSR_MAC_SWC_AD_L, 32, "PSR_MAC_SWC_AD"}, + {NGBE_PSR_VLAN_TBL(0), 128, "PSR_VLAN_TBL"}, + + /* List Terminator */ + { .name = NULL } +}; + +/** + * ngbe_regdump - register printout routine + **/ +static void +ngbe_regdump(struct ngbe_hw *hw, struct ngbe_reg_info *reg_info) +{ + int i, n = 0; + u32 buffer[32*8]; + + switch (reg_info->offset) { + case NGBE_PSR_MAC_SWC_AD_L: + for (i = 0; i < reg_info->length; i++) { + wr32(hw, NGBE_PSR_MAC_SWC_IDX, i); + buffer[n++] = + rd32(hw, NGBE_PSR_MAC_SWC_AD_H); + buffer[n++] = + rd32(hw, NGBE_PSR_MAC_SWC_AD_L); + } + break; + default: + for (i = 0; i < reg_info->length; i++) { + buffer[n++] = rd32(hw, + reg_info->offset + 4*i); + } + break; + } + BUG_ON(n); +} + +/** + * ngbe_dump - Print registers, tx-rings and rx-rings + **/ +void ngbe_dump(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_reg_info *reg_info; + int n = 0; + struct ngbe_ring *tx_ring; + struct ngbe_tx_buffer *tx_buffer; + union ngbe_tx_desc *tx_desc; + struct my_u0 { u64 a; u64 b; } *u0; + struct ngbe_ring *rx_ring; + union ngbe_rx_desc *rx_desc; + struct ngbe_rx_buffer *rx_buffer_info; + u32 staterr; + int i = 0; + + if (!netif_msg_hw(adapter)) + return; + + /* Print Registers */ + dev_info(&adapter->pdev->dev, "Register Dump\n"); + pr_info(" Register Name Value\n"); + for (reg_info = ngbe_reg_info_tbl; reg_info->name; reg_info++) { + ngbe_regdump(hw, reg_info); + } + + /* Print TX Ring Summary */ + if (!netdev || !netif_running(netdev)) + return; + + dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); + pr_info(" %s %s %s %s\n", + "Queue [NTU] [NTC] [bi(ntc)->dma ]", + "leng", "ntw", "timestamp"); + for (n = 0; n < adapter->num_tx_queues; n++) { + tx_ring = adapter->tx_ring[n]; + tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; + pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n", + n, tx_ring->next_to_use, tx_ring->next_to_clean, + (u64)dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + tx_buffer->next_to_watch, + (u64)tx_buffer->time_stamp); + } + + /* Print TX Rings */ + if (!netif_msg_tx_done(adapter)) + goto rx_ring_summary; + + dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); + + /* Transmit Descriptor Formats + * + * Transmit Descriptor (Read) + * +--------------------------------------------------------------+ + * 0 | Buffer Address [63:0] | + * +--------------------------------------------------------------+ + * 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN | + * +--------------------------------------------------------------+ + * 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0 + * + * Transmit Descriptor (Write-Back) + * +--------------------------------------------------------------+ + * 0 | RSV [63:0] | + * +--------------------------------------------------------------+ + * 8 | RSV | STA | RSV | + * +--------------------------------------------------------------+ + * 63 36 35 32 31 0 + */ + + for (n = 0; n < adapter->num_tx_queues; n++) { + tx_ring = adapter->tx_ring[n]; + pr_info("------------------------------------\n"); + pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); + pr_info("------------------------------------\n"); + pr_info("%s%s %s %s %s %s\n", + "T [desc] [address 63:0 ] ", + "[PlPOIdStDDt Ln] [bi->dma ] ", + "leng", "ntw", "timestamp", "bi->skb"); + + for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { + tx_desc = NGBE_TX_DESC(tx_ring, i); + tx_buffer = &tx_ring->tx_buffer_info[i]; + u0 = (struct my_u0 *)tx_desc; + if (dma_unmap_len(tx_buffer, len) > 0) { + pr_info("T [0x%03X] %016llX %016llX %016llX " + "%08X %p %016llX %p", + i, + le64_to_cpu(u0->a), + le64_to_cpu(u0->b), + (u64)dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), + tx_buffer->next_to_watch, + (u64)tx_buffer->time_stamp, + tx_buffer->skb); + if (i == tx_ring->next_to_use && + i == tx_ring->next_to_clean) + pr_cont(" NTC/U\n"); + else if (i == tx_ring->next_to_use) + pr_cont(" NTU\n"); + else if (i == tx_ring->next_to_clean) + pr_cont(" NTC\n"); + else + pr_cont("\n"); + + if (netif_msg_pktdata(adapter) && + tx_buffer->skb) + print_hex_dump(KERN_INFO, "", + DUMP_PREFIX_ADDRESS, 16, 1, + tx_buffer->skb->data, + dma_unmap_len(tx_buffer, len), + true); + } + } + } + + /* Print RX Rings Summary */ +rx_ring_summary: + dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); + pr_info("Queue [NTU] [NTC]\n"); + for (n = 0; n < adapter->num_rx_queues; n++) { + rx_ring = adapter->rx_ring[n]; + pr_info("%5d %5X %5X\n", + n, rx_ring->next_to_use, rx_ring->next_to_clean); + } + + /* Print RX Rings */ + if (!netif_msg_rx_status(adapter)) + return; + + dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); + + /* Receive Descriptor Formats + * + * Receive Descriptor (Read) + * 63 1 0 + * +-----------------------------------------------------+ + * 0 | Packet Buffer Address [63:1] |A0/NSE| + * +----------------------------------------------+------+ + * 8 | Header Buffer Address [63:1] | DD | + * +-----------------------------------------------------+ + * + * + * Receive Descriptor (Write-Back) + * + * 63 48 47 32 31 30 21 20 17 16 4 3 0 + * +------------------------------------------------------+ + * 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS | + * |/ RTT / PCoE_PARAM | | | CNT | Type | Type | + * |/ Flow Dir Flt ID | | | | | | + * +------------------------------------------------------+ + * 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP | + * +------------------------------------------------------+ + * 63 48 47 32 31 20 19 0 + */ + + for (n = 0; n < adapter->num_rx_queues; n++) { + rx_ring = adapter->rx_ring[n]; + pr_info("------------------------------------\n"); + pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); + pr_info("------------------------------------\n"); + pr_info("%s%s%s", + "R [desc] [ PktBuf A0] ", + "[ HeadBuf DD] [bi->dma ] [bi->skb ] ", + "<-- Adv Rx Read format\n"); + pr_info("%s%s%s", + "RWB[desc] [PcsmIpSHl PtRs] ", + "[vl er S cks ln] ---------------- [bi->skb ] ", + "<-- Adv Rx Write-Back format\n"); + + for (i = 0; i < rx_ring->count; i++) { + rx_buffer_info = &rx_ring->rx_buffer_info[i]; + rx_desc = NGBE_RX_DESC(rx_ring, i); + u0 = (struct my_u0 *)rx_desc; + staterr = le32_to_cpu(rx_desc->wb.upper.status_error); + if (staterr & NGBE_RXD_STAT_DD) { + /* Descriptor Done */ + pr_info("RWB[0x%03X] %016llX " + "%016llX ---------------- %p", i, + le64_to_cpu(u0->a), + le64_to_cpu(u0->b), + rx_buffer_info->skb); + } else { + pr_info("R [0x%03X] %016llX " + "%016llX %016llX %p", i, + le64_to_cpu(u0->a), + le64_to_cpu(u0->b), + (u64)rx_buffer_info->page_dma, + rx_buffer_info->skb); + + if (netif_msg_pktdata(adapter) && + rx_buffer_info->page_dma) { + print_hex_dump(KERN_INFO, "", + DUMP_PREFIX_ADDRESS, 16, 1, + page_address(rx_buffer_info->page) + + rx_buffer_info->page_offset, + ngbe_rx_bufsz(rx_ring), true); + } + } + + if (i == rx_ring->next_to_use) + pr_cont(" NTU\n"); + else if (i == rx_ring->next_to_clean) + pr_cont(" NTC\n"); + else + pr_cont("\n"); + + } + } +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_ethtool.c b/drivers/net/ethernet/netswift/ngbe/ngbe_ethtool.c new file mode 100644 index 0000000000000..ca389a7ec4ade --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_ethtool.c @@ -0,0 +1,2756 @@ +/* + * WangXun 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". + * + */ + +/* ethtool support for ngbe */ + +#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 <asm/uaccess.h> +#include <linux/net_tstamp.h> + +#include "ngbe.h" +#include "ngbe_hw.h" +#include "ngbe_phy.h" + +#define NGBE_ALL_RAR_ENTRIES 16 + +struct ngbe_stats { + char stat_string[ETH_GSTRING_LEN]; + int sizeof_stat; + int stat_offset; +}; + +#define NGBE_NETDEV_STAT(_net_stat) { \ + .stat_string = #_net_stat, \ + .sizeof_stat = sizeof_field(struct net_device_stats, _net_stat), \ + .stat_offset = offsetof(struct net_device_stats, _net_stat) \ +} +static const struct ngbe_stats ngbe_gstrings_net_stats[] = { + NGBE_NETDEV_STAT(rx_packets), + NGBE_NETDEV_STAT(tx_packets), + NGBE_NETDEV_STAT(rx_bytes), + NGBE_NETDEV_STAT(tx_bytes), + NGBE_NETDEV_STAT(rx_errors), + NGBE_NETDEV_STAT(tx_errors), + NGBE_NETDEV_STAT(rx_dropped), + NGBE_NETDEV_STAT(tx_dropped), + NGBE_NETDEV_STAT(multicast), + NGBE_NETDEV_STAT(collisions), + NGBE_NETDEV_STAT(rx_over_errors), + NGBE_NETDEV_STAT(rx_crc_errors), + NGBE_NETDEV_STAT(rx_frame_errors), + NGBE_NETDEV_STAT(rx_fifo_errors), + NGBE_NETDEV_STAT(rx_missed_errors), + NGBE_NETDEV_STAT(tx_aborted_errors), + NGBE_NETDEV_STAT(tx_carrier_errors), + NGBE_NETDEV_STAT(tx_fifo_errors), + NGBE_NETDEV_STAT(tx_heartbeat_errors), +}; + +#define NGBE_STAT(_name, _stat) { \ + .stat_string = _name, \ + .sizeof_stat = sizeof_field(struct ngbe_adapter, _stat), \ + .stat_offset = offsetof(struct ngbe_adapter, _stat) \ +} +static struct ngbe_stats ngbe_gstrings_stats[] = { + NGBE_STAT("rx_pkts_nic", stats.gprc), + NGBE_STAT("tx_pkts_nic", stats.gptc), + NGBE_STAT("rx_bytes_nic", stats.gorc), + NGBE_STAT("tx_bytes_nic", stats.gotc), + NGBE_STAT("lsc_int", lsc_int), + NGBE_STAT("tx_busy", tx_busy), + NGBE_STAT("non_eop_descs", non_eop_descs), + NGBE_STAT("broadcast", stats.bprc), + NGBE_STAT("rx_no_buffer_count", stats.rnbc[0]), + NGBE_STAT("tx_timeout_count", tx_timeout_count), + NGBE_STAT("tx_restart_queue", restart_queue), + NGBE_STAT("rx_long_length_count", stats.roc), + NGBE_STAT("rx_short_length_count", stats.ruc), + NGBE_STAT("tx_flow_control_xon", stats.lxontxc), + NGBE_STAT("rx_flow_control_xon", stats.lxonrxc), + NGBE_STAT("tx_flow_control_xoff", stats.lxofftxc), + NGBE_STAT("rx_flow_control_xoff", stats.lxoffrxc), + NGBE_STAT("rx_csum_offload_good_count", hw_csum_rx_good), + NGBE_STAT("rx_csum_offload_errors", hw_csum_rx_error), + NGBE_STAT("alloc_rx_page_failed", alloc_rx_page_failed), + NGBE_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed), + NGBE_STAT("rx_no_dma_resources", hw_rx_no_dma_resources), + NGBE_STAT("os2bmc_rx_by_bmc", stats.o2bgptc), + NGBE_STAT("os2bmc_tx_by_bmc", stats.b2ospc), + NGBE_STAT("os2bmc_tx_by_host", stats.o2bspc), + NGBE_STAT("os2bmc_rx_by_host", stats.b2ogprc), + NGBE_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), + NGBE_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), +}; + +/* ngbe 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 NGBE_NUM_RX_QUEUES netdev->num_tx_queues +#define NGBE_NUM_TX_QUEUES netdev->num_tx_queues + +#define NGBE_QUEUE_STATS_LEN ( \ + (NGBE_NUM_TX_QUEUES + NGBE_NUM_RX_QUEUES) * \ + (sizeof(struct ngbe_queue_stats) / sizeof(u64))) +#define NGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ngbe_gstrings_stats) +#define NGBE_NETDEV_STATS_LEN ARRAY_SIZE(ngbe_gstrings_net_stats) +#define NGBE_PB_STATS_LEN ( \ + (sizeof(((struct ngbe_adapter *)0)->stats.pxonrxc) + \ + sizeof(((struct ngbe_adapter *)0)->stats.pxontxc) + \ + sizeof(((struct ngbe_adapter *)0)->stats.pxoffrxc) + \ + sizeof(((struct ngbe_adapter *)0)->stats.pxofftxc)) \ + / sizeof(u64)) +#define NGBE_VF_STATS_LEN \ + ((((struct ngbe_adapter *)netdev_priv(netdev))->num_vfs) * \ + (sizeof(struct vf_stats) / sizeof(u64))) +#define NGBE_STATS_LEN (NGBE_GLOBAL_STATS_LEN + \ + NGBE_NETDEV_STATS_LEN + \ + NGBE_PB_STATS_LEN + \ + NGBE_QUEUE_STATS_LEN + \ + NGBE_VF_STATS_LEN) + +static const char ngbe_gstrings_test[][ETH_GSTRING_LEN] = { + "Register test (offline)", "Eeprom test (offline)", + "Interrupt test (offline)", "Loopback test (offline)", + "Link test (on/offline)" +}; +#define NGBE_TEST_LEN (sizeof(ngbe_gstrings_test) / ETH_GSTRING_LEN) + +#define ngbe_isbackplane(type) \ + ((type == ngbe_media_type_backplane) ? true : false) + +int ngbe_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + u32 supported_link = 0; + u32 link_speed = 0; + bool autoneg = false; + u32 supported, advertising; + bool link_up = 0; + + ethtool_convert_link_mode_to_legacy_u32(&supported, + cmd->link_modes.supported); + + TCALL(hw, mac.ops.get_link_capabilities, &supported_link, &autoneg); + + /* set the supported link speeds */ + if (supported_link & NGBE_LINK_SPEED_1GB_FULL) + supported |= (ngbe_isbackplane(hw->phy.media_type)) ? + SUPPORTED_1000baseKX_Full : SUPPORTED_1000baseT_Full; + if (supported_link & NGBE_LINK_SPEED_100_FULL) + supported |= SUPPORTED_100baseT_Full; + if (supported_link & NGBE_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) { + advertising = 0; + if (hw->phy.autoneg_advertised & NGBE_LINK_SPEED_100_FULL) + advertising |= ADVERTISED_100baseT_Full; + if (hw->phy.autoneg_advertised & NGBE_LINK_SPEED_1GB_FULL) { + if (supported & SUPPORTED_1000baseKX_Full) + advertising |= ADVERTISED_1000baseKX_Full; + else + advertising |= ADVERTISED_1000baseT_Full; + } + if (hw->phy.autoneg_advertised & NGBE_LINK_SPEED_10_FULL) + advertising |= ADVERTISED_10baseT_Full; + } else { + /* default modes in case phy.autoneg_advertised isn't set */ + if (supported_link & NGBE_LINK_SPEED_1GB_FULL) + advertising |= ADVERTISED_1000baseT_Full; + if (supported_link & NGBE_LINK_SPEED_100_FULL) + advertising |= ADVERTISED_100baseT_Full; + if (supported_link & NGBE_LINK_SPEED_10_FULL) + advertising |= ADVERTISED_10baseT_Full; + } + supported |= SUPPORTED_Autoneg; + if (autoneg) { + advertising |= ADVERTISED_Autoneg; + autoneg = AUTONEG_ENABLE; + 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 ngbe_phy_internal: + case ngbe_phy_m88e1512: + case ngbe_phy_zte: + supported |= SUPPORTED_TP; + advertising |= ADVERTISED_TP; + cmd->base.port = PORT_TP; + break; + case ngbe_phy_sfp_passive_tyco: + case ngbe_phy_sfp_passive_unknown: + case ngbe_phy_sfp_ftl: + case ngbe_phy_sfp_avago: + case ngbe_phy_sfp_intel: + case ngbe_phy_sfp_unknown: + switch (adapter->hw.phy.sfp_type) { + /* SFP+ devices, further checking needed */ + case ngbe_sfp_type_da_cu: + case ngbe_sfp_type_da_cu_core0: + case ngbe_sfp_type_da_cu_core1: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_DA; + break; + case ngbe_sfp_type_sr: + case ngbe_sfp_type_lr: + case ngbe_sfp_type_srlr_core0: + case ngbe_sfp_type_srlr_core1: + case ngbe_sfp_type_1g_sx_core0: + case ngbe_sfp_type_1g_sx_core1: + case ngbe_sfp_type_1g_lx_core0: + case ngbe_sfp_type_1g_lx_core1: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_FIBRE; + break; + case ngbe_sfp_type_not_present: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_NONE; + break; + case ngbe_sfp_type_1g_cu_core0: + case ngbe_sfp_type_1g_cu_core1: + supported |= SUPPORTED_TP; + advertising |= ADVERTISED_TP; + cmd->base.port = PORT_TP; + break; + case ngbe_sfp_type_unknown: + default: + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_OTHER; + break; + } + break; + case ngbe_phy_unknown: + case ngbe_phy_generic: + case ngbe_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 ngbe_fc_full: + advertising |= ADVERTISED_Pause; + break; + case ngbe_fc_rx_pause: + advertising |= ADVERTISED_Pause | + ADVERTISED_Asym_Pause; + break; + case ngbe_fc_tx_pause: + advertising |= ADVERTISED_Asym_Pause; + break; + default: + advertising &= ~(ADVERTISED_Pause | + ADVERTISED_Asym_Pause); + } + + if (link_up) { + switch (link_speed) { + case NGBE_LINK_SPEED_1GB_FULL: + cmd->base.speed = SPEED_1000; + break; + case NGBE_LINK_SPEED_100_FULL: + cmd->base.speed = SPEED_100; + break; + case NGBE_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 ngbe_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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->phy.media_type == ngbe_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; + } + old = hw->phy.autoneg_advertised; + advertised = 0; + + if (cmd->base.autoneg == AUTONEG_ENABLE) { + hw->mac.autoneg = true; + if (advertising & ADVERTISED_1000baseT_Full) + advertised |= NGBE_LINK_SPEED_1GB_FULL; + + if (advertising & ADVERTISED_100baseT_Full) + advertised |= NGBE_LINK_SPEED_100_FULL; + + if (advertising & ADVERTISED_10baseT_Full) + advertised |= NGBE_LINK_SPEED_10_FULL; + + if (old == advertised) { + return err; + } + } else { + if (cmd->base.duplex == DUPLEX_HALF) { + e_err(probe, "unsupported duplex\n"); + return -EINVAL; + } + + switch (cmd->base.speed) { + case SPEED_10: + advertised = NGBE_LINK_SPEED_10_FULL; + break; + case SPEED_100: + advertised = NGBE_LINK_SPEED_100_FULL; + break; + case SPEED_1000: + advertised = NGBE_LINK_SPEED_1GB_FULL; + break; + default: + e_err(probe, "unsupported speed\n"); + return -EINVAL; + } + hw->mac.autoneg = false; + } + + 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); + } else { + hw->phy.autoneg_advertised = advertised; + } + } else { + /* in this case we currently only support 1Gb/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 ngbe_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + + if (!hw->fc.disable_fc_autoneg) + pause->autoneg = 1; + else + pause->autoneg = 0; + + if (hw->fc.current_mode == ngbe_fc_rx_pause) { + pause->rx_pause = 1; + } else if (hw->fc.current_mode == ngbe_fc_tx_pause) { + pause->tx_pause = 1; + } else if (hw->fc.current_mode == ngbe_fc_full) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } +} + +static int ngbe_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_fc_info fc = hw->fc; + + fc.disable_fc_autoneg = (pause->autoneg != AUTONEG_ENABLE); + + if ((pause->rx_pause && pause->tx_pause) || pause->autoneg) + fc.requested_mode = ngbe_fc_full; + else if (pause->rx_pause) + fc.requested_mode = ngbe_fc_rx_pause; + else if (pause->tx_pause) + fc.requested_mode = ngbe_fc_tx_pause; + else + fc.requested_mode = ngbe_fc_none; + + /* if the thing changed then we'll update and use new autoneg */ + if (memcmp(&fc, &hw->fc, sizeof(struct ngbe_fc_info))) { + hw->fc = fc; + if (netif_running(netdev)) + ngbe_reinit_locked(adapter); + else + ngbe_reset(adapter); + } + + return 0; +} + +static u32 ngbe_get_msglevel(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} + +static void ngbe_set_msglevel(struct net_device *netdev, u32 data) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = data; +} + +static int ngbe_get_regs_len(struct net_device __always_unused *netdev) +{ +#define NGBE_REGS_LEN 4096 + return NGBE_REGS_LEN * sizeof(u32); +} + +#define NGBE_GET_STAT(_A_, _R_) (_A_->stats._R_) + +static void ngbe_get_regs(struct net_device *netdev, + struct ethtool_regs *regs, + void *p) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + u32 *regs_buff = p; + u32 i; + u32 id = 0; + + memset(p, 0, NGBE_REGS_LEN * sizeof(u32)); + regs_buff[NGBE_REGS_LEN - 1] = 0x55555555; + + regs->version = hw->revision_id << 16 | + hw->device_id; + + /* Global Registers */ + /* chip control */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_PWR);//0 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_CTL);//1 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_PF_SM);//2 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_RST);//3 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_ST);//4 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_SWSM);//5 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MIS_RST_ST);//6 + /* pvt sensor */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_CTL);//7 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_EN);//8 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_ST);//9 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_ALARM_THRE);//10 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_DALARM_THRE);//11 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_INT_EN);//12 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TS_ALARM_ST);//13 + /* Fmgr Register */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_CMD);//14 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_DATA);//15 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_STATUS);//16 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_USR_CMD);//17 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_CMDCFG0);//18 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_CMDCFG1);//19 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_ILDR_STATUS);//20 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_SPI_ILDR_SWPTR);//21 + + /* Port Registers */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_PORT_CTL);//22 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_PORT_ST);//23 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_EX_VTYPE);//24 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_TCP_TIME);//25 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_LED_CTL);//26 + /* GPIO */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_GPIO_DR);//27 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_GPIO_DDR);//28 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_GPIO_CTL);//29 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_GPIO_INTEN);//30 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_GPIO_INTMASK);//31 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_GPIO_INTSTATUS);//32 + /* TX TPH */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_TPH_TDESC);//33 + /* RX TPH */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_TPH_RDESC);//34 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_TPH_RHDR);//35 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_CFG_TPH_RPL);//36 + + /* TDMA */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_CTL);//37 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_POOL_TE);//38 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_PB_THRE);//39 + + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_LLQ);//40 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_ETYPE_LB_L);//41 + + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_ETYPE_AS_L);//42 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_MAC_AS_L);//43 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_VLAN_AS_L);//44 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_TCP_FLG_L);//45 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_TCP_FLG_H);//46 + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_VLAN_INS(i));//47-54 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_ETAG_INS(i));//55-62 + } + /* Transmit QOS */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_PBWARB_CTL);//63 + + /* statistics */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_DRP_CNT);//64 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_SEC_DRP);//65 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_PKT_CNT);//66 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_BYTE_CNT_L);//67 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_BYTE_CNT_H);//68 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDM_OS2BMC_CNT);//69 + + /* RDMA */ + /* receive control */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_ARB_CTL);//70 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_POOL_RE);//71 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_PF_QDE);//72 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_PF_HIDE);//73 + /* static */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_DRP_PKT);//74 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_PKT_CNT);//75 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_BYTE_CNT_L);//76 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_BYTE_CNT_H);//77 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDM_BMC2OS_CNT);//78 + + /* RDB */ + /*flow control */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RFCV);//79 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RFCL);//80 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RFCH);//81 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RFCRT);//82 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RFCC);//83 + /* receive packet buffer */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_PB_CTL);//84 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_PB_SZ);//85 + + /* lli interrupt */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_LLI_THRE);//86 + /* ring assignment */ + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_PL_CFG(i));//87-94 + } + for (i = 0; i < 32; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RSSTBL(i));//95-126 + } + for (i = 0; i < 10; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RSSRK(i));//127-136 + } + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_RA_CTL);//137 + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_5T_SDP(i));//138-145 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_5T_CTL0(i));//146-153 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_5T_CTL1(i));//154-161 + } + + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_SYN_CLS);//162 + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_ETYPE_CLS(i));//163-170 + } + /* statistics */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_MPCNT);//171 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_PKT_CNT);//172 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_REPLI_CNT);//173 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_DRP_CNT);//174 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_LXONTXC);//175 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_LXOFFTXC);//176 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_PFCMACDAL);//177 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_PFCMACDAH);//178 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RDB_TXSWERR);//179 + + /* PSR */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_CTL);//180 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MAX_SZ);//181 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VLAN_CTL);//182 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VM_CTL);//183 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_PKT_CNT);//184 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MNG_PKT_CNT);//185 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_DBG_DOP_CNT);//186 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MNG_DOP_CNT);//187 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VM_FLP_L);//188 + + /* vm l2 control */ + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VM_L2CTL(i));//189-196 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_ETYPE_SWC(i));//197-204 + } + for (i = 0; i < 128; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MC_TBL(i));//205-332 + } + for (i = 0; i < 128; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_UC_TBL(i));///333-460 + } + for (i = 0; i < 128; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VLAN_TBL(i));//461-588 + } + /* mac switcher */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MAC_SWC_AD_L);//589 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MAC_SWC_AD_H);//590 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MAC_SWC_VM);//591 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MAC_SWC_IDX);//592 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VLAN_SWC);//593 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VLAN_SWC_VM_L);//594 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_VLAN_SWC_IDX);//595 + + /* mirror */ + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MR_CTL(i));//596-599 + } + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MR_VLAN_L(i));//600-603 + } + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_MR_VM_L(i));//604-607 + } + /* 1588 */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_1588_CTL);//608 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_1588_STMPL);//609 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_1588_STMPH);//610 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_1588_ATTRL);//611 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_1588_ATTRH);//612 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_1588_MSGTYPE);//613 + /* wake up */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_WKUP_CTL);//614 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_WKUP_IPV);//615 + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_WKUP_IP4TBL(i));//616-619 + } + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_WKUP_IP6TBL(i));//620-623 + } + for (i = 0; i < 16; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_LAN_FLEX_DW_L(i));//624-639 + } + for (i = 0; i < 16; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_LAN_FLEX_DW_H(i));//640-655 + } + for (i = 0; i < 16; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_LAN_FLEX_MSK(i));//656-671 + } + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PSR_LAN_FLEX_CTL);//672 + + /* TDB */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_RFCS);//673 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_PB_SZ);//674 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_PBRARB_CTL);//675 + /* statistic */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_OUT_PKT_CNT);//676 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_MNG_PKT_CNT);//677 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_LB_PKT_CNT);//678 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TDB_MNG_LARGE_DOP_CNT);//679 + + /* TSEC */ + /* general tsec */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_CTL);//680 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_ST);//681 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_BUF_AF);//682 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_BUF_AE);//683 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_MIN_IFG);//684 + /* 1588 */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_CTL);//685 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_STMPL);//686 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_STMPH);//687 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_SYSTIML);//688 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_SYSTIMH);//689 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_INC);//690 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_ADJL);//691 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_ADJH);//692 + + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_INT_ST);//693 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_INT_EN);//694 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_AUX_CTL);//695 + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TSEC_1588_SDP(i));//696-699 + } + + /* RSEC */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RSEC_CTL);//700 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RSEC_ST);//701 + /* mac wrapper */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_TX_CFG);//702 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_RX_CFG);//703 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_PKT_FLT);//704 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_WDG_TIMEOUT);//705 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_TX_FLOW_CTRL);//706 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_RX_FLOW_CTRL);//707 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_INT_ST);//708 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_MAC_INT_EN);//709 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_RX_FRAME_CNT_GOOD_BAD_LOW);//710 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_TX_FRAME_CNT_GOOD_BAD_LOW);//711 + + /* BAR register */ + /* pf interrupt register */ + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_MISC_IC);//712 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_MISC_ICS);//713 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_MISC_IEN);//714 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_GPIE);//715 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_IC);//716 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_ICS);//717 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_IMS);//718 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_IMC);//719 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_ISB_ADDR_L);//720 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_ISB_ADDR_H);//721 + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_ITRSEL);//722 + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_ITR(i));//723-730 + } + for (i = 0; i < 4; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_IVAR(i));//731-734 + } + + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_MISC_IVAR);//735 + /* pf receive ring register */ + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_RR_BAL(i));//736-743 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_RR_BAH(i));//744-751 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_RR_WP(i));//752-759 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_RR_RP(i));//760-767 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_RR_CFG(i));//768-775 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_TR_BAL(i));//776-783 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_TR_BAH(i));//784-791 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_TR_WP(i));//792-709 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_TR_RP(i));//800-807 + } + for (i = 0; i < 8; i++) { + regs_buff[id++] = NGBE_R32_Q(hw, NGBE_PX_TR_CFG(i));//808-815 + } +} + +static int ngbe_get_eeprom_len(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + return adapter->hw.eeprom.word_size * 2; +} + +static int ngbe_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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 ngbe_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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 ngbe_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + strncpy(drvinfo->driver, ngbe_driver_name, + sizeof(drvinfo->driver) - 1); + strncpy(drvinfo->version, ngbe_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 <= NGBE_NUM_RX_QUEUES) { + drvinfo->n_stats = NGBE_STATS_LEN - + (NGBE_NUM_RX_QUEUES - adapter->num_tx_queues)* + (sizeof(struct ngbe_queue_stats) / sizeof(u64))*2; + } else { + drvinfo->n_stats = NGBE_STATS_LEN; + } + drvinfo->testinfo_len = NGBE_TEST_LEN; + drvinfo->regdump_len = ngbe_get_regs_len(netdev); +} + +static void ngbe_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + ring->rx_max_pending = NGBE_MAX_RXD; + ring->tx_max_pending = NGBE_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 ngbe_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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, + NGBE_MIN_TXD, NGBE_MAX_TXD); + new_tx_count = ALIGN(new_tx_count, NGBE_REQ_TX_DESCRIPTOR_MULTIPLE); + + new_rx_count = clamp_t(u32, ring->rx_pending, + NGBE_MIN_RXD, NGBE_MAX_RXD); + new_rx_count = ALIGN(new_rx_count, NGBE_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(__NGBE_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 ngbe_ring)); + + if (!temp_ring) { + err = -ENOMEM; + goto clear_reset; + } + + ngbe_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 ngbe_ring)); + + temp_ring[i].count = new_tx_count; + err = ngbe_setup_tx_resources(&temp_ring[i]); + if (err) { + while (i) { + i--; + ngbe_free_tx_resources(&temp_ring[i]); + } + goto err_setup; + } + } + + for (i = 0; i < adapter->num_tx_queues; i++) { + ngbe_free_tx_resources(adapter->tx_ring[i]); + + memcpy(adapter->tx_ring[i], &temp_ring[i], + sizeof(struct ngbe_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 ngbe_ring)); + + temp_ring[i].count = new_rx_count; + err = ngbe_setup_rx_resources(&temp_ring[i]); + if (err) { + while (i) { + i--; + ngbe_free_rx_resources(&temp_ring[i]); + } + goto err_setup; + } + } + + for (i = 0; i < adapter->num_rx_queues; i++) { + ngbe_free_rx_resources(adapter->rx_ring[i]); + + memcpy(adapter->rx_ring[i], &temp_ring[i], + sizeof(struct ngbe_ring)); + } + + adapter->rx_ring_count = new_rx_count; + } + +err_setup: + ngbe_up(adapter); + vfree(temp_ring); +clear_reset: + clear_bit(__NGBE_RESETTING, &adapter->state); + return err; +} + +static int ngbe_get_sset_count(struct net_device *netdev, int sset) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + switch (sset) { + case ETH_SS_TEST: + return NGBE_TEST_LEN; + case ETH_SS_STATS: + if (adapter->num_tx_queues <= NGBE_NUM_RX_QUEUES) { + return NGBE_STATS_LEN - (NGBE_NUM_RX_QUEUES - adapter->num_tx_queues)* + (sizeof(struct ngbe_queue_stats) / sizeof(u64))*2; + } else { + return NGBE_STATS_LEN; + } + default: + return -EOPNOTSUPP; + } +} + +static void ngbe_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats __always_unused *stats, + u64 *data) +{ + struct ngbe_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 ngbe_ring *ring; + int i, j; + char *p; + + ngbe_update_stats(adapter); + net_stats = dev_get_stats(netdev, &temp); + + for (i = 0; i < NGBE_NETDEV_STATS_LEN; i++) { + p = (char *)net_stats + ngbe_gstrings_net_stats[i].stat_offset; + data[i] = (ngbe_gstrings_net_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } + for (j = 0; j < NGBE_GLOBAL_STATS_LEN; j++, i++) { + p = (char *)adapter + ngbe_gstrings_stats[j].stat_offset; + data[i] = (ngbe_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; + 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 < NGBE_MAX_PACKET_BUFFERS; j++) { + data[i++] = adapter->stats.pxontxc[j]; + data[i++] = adapter->stats.pxofftxc[j]; + } + for (j = 0; j < NGBE_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 ngbe_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + char *p = (char *)data; + int i; + + switch (stringset) { + case ETH_SS_TEST: + memcpy(data, *ngbe_gstrings_test, + NGBE_TEST_LEN * ETH_GSTRING_LEN); + break; + case ETH_SS_STATS: + for (i = 0; i < NGBE_NETDEV_STATS_LEN; i++) { + memcpy(p, ngbe_gstrings_net_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < NGBE_GLOBAL_STATS_LEN; i++) { + memcpy(p, ngbe_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < adapter->num_tx_queues; i++) { /*temp setting2*/ + 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++) { /*temp setting2*/ + 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 < NGBE_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 < NGBE_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 != NGBE_STATS_LEN * ETH_GSTRING_LEN); */ + break; + } +} + +static int ngbe_link_test(struct ngbe_adapter *adapter, u64 *data) +{ + struct ngbe_hw *hw = &adapter->hw; + bool link_up; + u32 link_speed = 0; + + if (NGBE_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 ngbe_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 ngbe_reg_test reg_test_sapphire[] = { + { NGBE_RDB_RFCL, 1, PATTERN_TEST, 0x8007FFE0, 0x8007FFE0 }, + { NGBE_RDB_RFCH, 1, PATTERN_TEST, 0x8007FFE0, 0x8007FFE0 }, + { NGBE_PSR_VLAN_CTL, 1, PATTERN_TEST, 0x00000000, 0x00000000 }, + { NGBE_PX_RR_BAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 }, + { NGBE_PX_RR_BAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { NGBE_PX_RR_CFG(0), 4, WRITE_NO_TEST, 0, NGBE_PX_RR_CFG_RR_EN }, + { NGBE_RDB_RFCH, 1, PATTERN_TEST, 0x8007FFE0, 0x8007FFE0 }, + { NGBE_RDB_RFCV, 1, PATTERN_TEST, 0xFFFF0000, 0xFFFF0000 }, + { NGBE_PX_TR_BAL(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { NGBE_PX_TR_BAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { NGBE_RDB_PB_CTL, 1, SET_READ_TEST, 0x00000001, 0x00000001 }, + { NGBE_PSR_MC_TBL(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, + { .reg = 0 } +}; + + +static bool reg_pattern_test(struct ngbe_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + u32 pat, val, before; + static const u32 test_pattern[] = { + 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF + }; + + if (NGBE_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 ngbe_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + u32 val, before; + + if (NGBE_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 ngbe_reg_test(struct ngbe_adapter *adapter, u64 *data) +{ + struct ngbe_reg_test *test; + struct ngbe_hw *hw = &adapter->hw; + u32 i; + + if (NGBE_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 ngbe_eeprom_test(struct ngbe_adapter *adapter, u64 *data) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 devcap; + + if (TCALL(hw, eeprom.ops.eeprom_chksum_cap_st, NGBE_CALSUM_COMMAND, &devcap)) { + *data = 1; + return true; + } else { + *data = 0; + return false; + } +} + +static irqreturn_t ngbe_test_intr(int __always_unused irq, void *data) +{ + struct net_device *netdev = (struct net_device *) data; + struct ngbe_adapter *adapter = netdev_priv(netdev); + u64 icr; + + /* get misc interrupt, as cannot get ring interrupt status */ + icr = ngbe_misc_isb(adapter, NGBE_ISB_VEC1); + icr <<= 32; + icr |= ngbe_misc_isb(adapter, NGBE_ISB_VEC0); + + adapter->test_icr = icr; + + return IRQ_HANDLED; +} + +static int ngbe_intr_test(struct ngbe_adapter *adapter, u64 *data) +{ + struct net_device *netdev = adapter->netdev; + u64 mask; + u32 i = 0, shared_int = true; + u32 irq = adapter->pdev->irq; + + if (NGBE_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 & NGBE_FLAG_MSI_ENABLED) { + shared_int = false; + if (request_irq(irq, &ngbe_test_intr, 0, netdev->name, + netdev)) { + *data = 1; + return -1; + } + } else if (!request_irq(irq, &ngbe_test_intr, IRQF_PROBE_SHARED, + netdev->name, netdev)) { + shared_int = false; + } else if (request_irq(irq, &ngbe_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 */ + ngbe_irq_disable(adapter); + NGBE_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; + ngbe_intr_disable(&adapter->hw, ~mask); + ngbe_intr_trigger(&adapter->hw, mask); + NGBE_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; + ngbe_intr_disable(&adapter->hw, NGBE_INTR_ALL); + ngbe_intr_trigger(&adapter->hw, mask); + NGBE_WRITE_FLUSH(&adapter->hw); + usleep_range(10000, 20000); + + if (!(adapter->test_icr & mask)) { + *data = 0; + break; + } + } + + /* Disable all the interrupts */ + ngbe_intr_disable(&adapter->hw, NGBE_INTR_ALL); + NGBE_WRITE_FLUSH(&adapter->hw); + usleep_range(10000, 20000); + + /* Unhook test interrupt handler */ + free_irq(irq, netdev); + + return *data; +} + +static void ngbe_free_desc_rings(struct ngbe_adapter *adapter) +{ + struct ngbe_ring *tx_ring = &adapter->test_tx_ring; + struct ngbe_ring *rx_ring = &adapter->test_rx_ring; + struct ngbe_hw *hw = &adapter->hw; + + /* shut down the DMA engines now so they can be reinitialized later */ + + /* first Rx */ + TCALL(hw, mac.ops.disable_rx); + ngbe_disable_rx_queue(adapter, rx_ring); + + /* now Tx */ + wr32(hw, NGBE_PX_TR_CFG(tx_ring->reg_idx), 0); + + wr32m(hw, NGBE_TDM_CTL, NGBE_TDM_CTL_TE, 0); + + ngbe_reset(adapter); + + ngbe_free_tx_resources(&adapter->test_tx_ring); + ngbe_free_rx_resources(&adapter->test_rx_ring); +} + +static int ngbe_setup_desc_rings(struct ngbe_adapter *adapter) +{ + struct ngbe_ring *tx_ring = &adapter->test_tx_ring; + struct ngbe_ring *rx_ring = &adapter->test_rx_ring; + struct ngbe_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 = NGBE_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 = ngbe_setup_tx_resources(tx_ring); + if (err) + return 1; + + wr32m(&adapter->hw, NGBE_TDM_CTL, + NGBE_TDM_CTL_TE, NGBE_TDM_CTL_TE); + wr32m(hw, NGBE_TSEC_CTL, 0x2, 0); + wr32m(hw, NGBE_RSEC_CTL, 0x2, 0); + ngbe_configure_tx_ring(adapter, tx_ring); + + + /* enable mac transmitter */ + wr32m(hw, NGBE_MAC_TX_CFG, + NGBE_MAC_TX_CFG_TE | NGBE_MAC_TX_CFG_SPEED_MASK, + NGBE_MAC_TX_CFG_TE | NGBE_MAC_TX_CFG_SPEED_1G); + + /* Setup Rx Descriptor ring and Rx buffers */ + rx_ring->count = NGBE_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 = ngbe_setup_rx_resources(rx_ring); + if (err) { + ret_val = 4; + goto err_nomem; + } + + TCALL(hw, mac.ops.disable_rx); + + ngbe_configure_rx_ring(adapter, rx_ring); + + TCALL(hw, mac.ops.enable_rx); + + return 0; + +err_nomem: + ngbe_free_desc_rings(adapter); + return ret_val; +} + +static int ngbe_setup_loopback_test(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 reg_data; + + /* Setup MAC loopback */ + wr32m(hw, NGBE_MAC_RX_CFG, + NGBE_MAC_RX_CFG_LM, NGBE_MAC_RX_CFG_LM); + + reg_data = rd32(hw, NGBE_PSR_CTL); + reg_data |= NGBE_PSR_CTL_BAM | NGBE_PSR_CTL_UPE | + NGBE_PSR_CTL_MPE | NGBE_PSR_CTL_TPE; + wr32(hw, NGBE_PSR_CTL, reg_data); + + wr32(hw, 0x17000, + ((rd32(hw, 0x17000) | + 0x00000040U) & ~0x1U)); + + wr32(hw, 0x17204, 0x4); + wr32(hw, NGBE_PSR_VLAN_CTL, + rd32(hw, NGBE_PSR_VLAN_CTL) & + ~NGBE_PSR_VLAN_CTL_VFE); + + NGBE_WRITE_FLUSH(hw); + usleep_range(10000, 20000); + + return 0; +} + +static void ngbe_loopback_cleanup(struct ngbe_adapter *adapter) +{ + wr32m(&adapter->hw, NGBE_MAC_RX_CFG, + NGBE_MAC_RX_CFG_LM, ~NGBE_MAC_RX_CFG_LM); +} + + +static void ngbe_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 ngbe_check_lbtest_frame(struct ngbe_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 ngbe_clean_test_rings(struct ngbe_ring *rx_ring, + struct ngbe_ring *tx_ring, + unsigned int size) +{ + union ngbe_rx_desc *rx_desc; + struct ngbe_rx_buffer *rx_buffer; + struct ngbe_tx_buffer *tx_buffer; + const int bufsz = ngbe_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 = NGBE_RX_DESC(rx_ring, rx_ntc); + + while (ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_DD)) { + /* unmap buffer on Tx side */ + tx_buffer = &tx_ring->tx_buffer_info[tx_ntc]; + ngbe_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 (ngbe_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 = NGBE_RX_DESC(rx_ring, rx_ntc); + } + + /* re-map buffers to ring, store next to clean values */ + ngbe_alloc_rx_buffers(rx_ring, count); + rx_ring->next_to_clean = rx_ntc; + tx_ring->next_to_clean = tx_ntc; + + return count; +} + +static int ngbe_run_loopback_test(struct ngbe_adapter *adapter) +{ + struct ngbe_ring *tx_ring = &adapter->test_tx_ring; + struct ngbe_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 &= ~NGBE_FLAG_DCB_ENABLED; + + /* allocate test skb */ + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) + return 11; + + /* place data into test skb */ + ngbe_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 = ngbe_xmit_frame_ring(skb, + adapter, + tx_ring); + if (tx_ret_val == NETDEV_TX_OK) + good_cnt++; + } + + msleep(10); + + if (good_cnt != 64) { + ret_val = 12; + break; + } + + /* allow 200 milliseconds for packets to go from Tx to Rx */ + msleep(200); + + good_cnt = ngbe_clean_test_rings(rx_ring, tx_ring, size); + if (good_cnt != 64) { + ret_val = 13; + e_dev_err("ngbe_run_loopback_test: recv_cnt = %d\n", good_cnt); + break; + } + } + + /* free the original skb */ + kfree_skb(skb); + adapter->flags = flags_orig; + + return ret_val; +} + +static int ngbe_loopback_test(struct ngbe_adapter *adapter, u64 *data) +{ + *data = ngbe_setup_desc_rings(adapter); + if (*data) + goto out; + *data = ngbe_setup_loopback_test(adapter); + if (*data) + goto err_loopback; + *data = ngbe_run_loopback_test(adapter); + if (*data) + e_info(hw, "mac loopback testing failed\n"); + ngbe_loopback_cleanup(adapter); + +err_loopback: + ngbe_free_desc_rings(adapter); +out: + return *data; +} + +static void ngbe_diag_test(struct net_device *netdev, + struct ethtool_test *eth_test, u64 *data) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + bool if_running = netif_running(netdev); + struct ngbe_hw *hw = &adapter->hw; + + e_dev_info("ngbe_diag_test: start test\n"); + + if (NGBE_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(__NGBE_TESTING, &adapter->state); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + if (adapter->flags & NGBE_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(__NGBE_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 (ngbe_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (if_running) + /* indicate we're in test mode */ + ngbe_close(netdev); + else { + msleep(20); + ngbe_reset(adapter); + } + + e_info(hw, "register testing starting\n"); + + if (ngbe_reg_test(adapter, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + msleep(20); + ngbe_reset(adapter); + e_info(hw, "eeprom testing starting\n"); + if (ngbe_eeprom_test(adapter, &data[1])) + eth_test->flags |= ETH_TEST_FL_FAILED; + msleep(20); + + ngbe_reset(adapter); + e_info(hw, "interrupt testing starting\n"); + if (ngbe_intr_test(adapter, &data[2])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (!(((hw->subsystem_device_id & OEM_MASK) == OCP_CARD) || + ((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP))) { + /* If SRIOV or VMDq is enabled then skip MAC + * loopback diagnostic. */ + if (adapter->flags & (NGBE_FLAG_SRIOV_ENABLED | + NGBE_FLAG_VMDQ_ENABLED)) { + e_info(hw, "skip MAC loopback diagnostic in VT mode\n"); + data[3] = 0; + goto skip_loopback; + } + + e_info(hw, "loopback testing starting\n"); + ngbe_loopback_test(adapter, &data[3]); + } + + data[3] = 0; + +skip_loopback: + msleep(20); + ngbe_reset(adapter); + + /* clear testing bit and return adapter to previous state */ + clear_bit(__NGBE_TESTING, &adapter->state); + if (if_running) + ngbe_open(netdev); + } else { + e_info(hw, "online testing starting\n"); + + /* Online tests */ + if (ngbe_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(__NGBE_TESTING, &adapter->state); + } + +skip_ol_tests: + msleep_interruptible(4 * 1000); +} + +static int ngbe_wol_exclusion(struct ngbe_adapter *adapter, + struct ethtool_wolinfo *wol) +{ + int retval = 0; + + /* WOL not supported for all devices */ + if (!ngbe_wol_supported(adapter)) { + retval = 1; + wol->supported = 0; + } + + return retval; +} + +static void ngbe_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + struct ngbe_hw *hw = &adapter->hw; + + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + + if (ngbe_wol_exclusion(adapter, wol) || + !device_can_wakeup(pci_dev_to_dev(adapter->pdev))) + return; + + if (adapter->wol & NGBE_PSR_WKUP_CTL_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & NGBE_PSR_WKUP_CTL_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & NGBE_PSR_WKUP_CTL_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & NGBE_PSR_WKUP_CTL_MAG) + wol->wolopts |= WAKE_MAGIC; + + if (!((hw->subsystem_device_id & WOL_SUP_MASK) == WOL_SUP)) + wol->wolopts = 0; +} + +static int ngbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + u32 slot = hw->bus.lan_id; + u16 value; + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + + if (ngbe_wol_exclusion(adapter, wol)) + return wol->wolopts ? -EOPNOTSUPP : 0; + if (!((hw->subsystem_device_id & WOL_SUP_MASK) == WOL_SUP)) + return -EOPNOTSUPP; + adapter->wol = 0; + + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= NGBE_PSR_WKUP_CTL_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= NGBE_PSR_WKUP_CTL_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= NGBE_PSR_WKUP_CTL_BC; + if (wol->wolopts & WAKE_MAGIC) { + adapter->wol |= NGBE_PSR_WKUP_CTL_MAG; + hw->wol_enabled = !!(adapter->wol); + wr32(hw, NGBE_PSR_WKUP_CTL, adapter->wol); + ngbe_read_ee_hostif(hw, 0x7FE, &value); + /*enable wol in shadow ram*/ + ngbe_write_ee_hostif(hw, 0x7FE, value | (1 << slot)); + ngbe_write_ee_hostif(hw, 0x7FF, 0x5a5a); + device_set_wakeup_enable(pci_dev_to_dev(adapter->pdev), adapter->wol); + return 0; + } + + ngbe_read_ee_hostif(hw, 0x7FE, &value); + /*disable wol in shadow ram*/ + ngbe_write_ee_hostif(hw, 0x7FE, value & ~(1 << slot)); + ngbe_write_ee_hostif(hw, 0x7FF, 0x5a5a); + return 0; +} + +static int ngbe_nway_reset(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + if (netif_running(netdev)) + ngbe_reinit_locked(adapter); + + return 0; +} + +static int ngbe_set_phys_id(struct net_device *netdev, + enum ethtool_phys_id_state state) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + + switch (state) { + case ETHTOOL_ID_ACTIVE: + adapter->led_reg = rd32(hw, NGBE_CFG_LED_CTL); + return 2; + + case ETHTOOL_ID_ON: + TCALL(hw, mac.ops.led_on, NGBE_LED_LINK_1G); + break; + + case ETHTOOL_ID_OFF: + TCALL(hw, mac.ops.led_off, NGBE_LED_LINK_100M | NGBE_LED_LINK_1G); + break; + + case ETHTOOL_ID_INACTIVE: + /* Restore LED settings */ + wr32(&adapter->hw, NGBE_CFG_LED_CTL, + adapter->led_reg); + break; + } + + return 0; +} + +static int ngbe_get_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct ngbe_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; +} + +static int ngbe_set_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_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 > (NGBE_MAX_EITR >> 2)) || + (ec->tx_coalesce_usecs > (NGBE_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 = NGBE_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 = NGBE_20K_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 < NGBE_70K_ITR)) { + if ((tx_itr_prev == 1) || + (tx_itr_prev >= NGBE_70K_ITR)) + need_reset = true; + } else { + if ((tx_itr_prev != 1) && + (tx_itr_prev < NGBE_70K_ITR)) + need_reset = true; + } + + 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; + ngbe_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) + ngbe_do_reset(netdev); + + return 0; +} + +static int ngbe_get_rss_hash_opts(struct ngbe_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + cmd->data = 0; + + /* Report default options for RSS on ngbe */ + 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 & NGBE_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 & NGBE_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 ngbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, + u32 *rule_locs) +{ + struct ngbe_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: + ret = 0; + break; + case ETHTOOL_GRXCLSRULE: + break; + case ETHTOOL_GRXCLSRLALL: + break; + case ETHTOOL_GRXFH: + ret = ngbe_get_rss_hash_opts(adapter, cmd); + break; + default: + break; + } + + return ret; +} + +#define UDP_RSS_FLAGS (NGBE_FLAG2_RSS_FIELD_IPV4_UDP | \ + NGBE_FLAG2_RSS_FIELD_IPV6_UDP) +static int ngbe_set_rss_hash_opt(struct ngbe_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 &= ~NGBE_FLAG2_RSS_FIELD_IPV4_UDP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + flags2 |= NGBE_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 &= ~NGBE_FLAG2_RSS_FIELD_IPV6_UDP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + flags2 |= NGBE_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 ngbe_hw *hw = &adapter->hw; + u32 mrqc; + + mrqc = rd32(hw, NGBE_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 |= NGBE_RDB_RA_CTL_RSS_IPV4 + | NGBE_RDB_RA_CTL_RSS_IPV4_TCP + | NGBE_RDB_RA_CTL_RSS_IPV6 + | NGBE_RDB_RA_CTL_RSS_IPV6_TCP; + + mrqc &= ~(NGBE_RDB_RA_CTL_RSS_IPV4_UDP | + NGBE_RDB_RA_CTL_RSS_IPV6_UDP); + + if (flags2 & NGBE_FLAG2_RSS_FIELD_IPV4_UDP) + mrqc |= NGBE_RDB_RA_CTL_RSS_IPV4_UDP; + + if (flags2 & NGBE_FLAG2_RSS_FIELD_IPV6_UDP) + mrqc |= NGBE_RDB_RA_CTL_RSS_IPV6_UDP; + + wr32(hw, NGBE_RDB_RA_CTL, mrqc); + } + + return 0; +} + +static int ngbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) +{ + struct ngbe_adapter *adapter = netdev_priv(dev); + int ret = -EOPNOTSUPP; + + switch (cmd->cmd) { + case ETHTOOL_SRXCLSRLINS: + break; + case ETHTOOL_SRXCLSRLDEL: + break; + case ETHTOOL_SRXFH: + ret = ngbe_set_rss_hash_opt(adapter, cmd); + break; + default: + break; + } + + return ret; +} + +static int ngbe_rss_indir_tbl_max(struct ngbe_adapter *adapter) +{ + return 64; +} + +static u32 ngbe_get_rxfh_key_size(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + return sizeof(adapter->rss_key); +} + +static u32 ngbe_rss_indir_size(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + return ngbe_rss_indir_tbl_entries(adapter); +} + +static void ngbe_get_reta(struct ngbe_adapter *adapter, u32 *indir) +{ + int i, reta_size = ngbe_rss_indir_tbl_entries(adapter); + + for (i = 0; i < reta_size; i++) + indir[i] = adapter->rss_indir_tbl[i]; +} + +static int ngbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, + u8 *hfunc) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + + if (indir) + ngbe_get_reta(adapter, indir); + + if (key) + memcpy(key, adapter->rss_key, ngbe_get_rxfh_key_size(netdev)); + + return 0; +} + +static int ngbe_set_rxfh(struct net_device *netdev, const u32 *indir, + const u8 *key, const u8 hfunc) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + int i; + u32 reta_entries = ngbe_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, + ngbe_rss_indir_tbl_max(adapter)); + + /*Allow at least 2 queues w/ SR-IOV.*/ + if ((adapter->flags & NGBE_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, ngbe_get_rxfh_key_size(netdev)); + + ngbe_store_reta(adapter); + + return 0; +} + +static int ngbe_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *info) +{ + struct ngbe_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 ngbe_max_channels(struct ngbe_adapter *adapter) +{ + unsigned int max_combined; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + if (!(adapter->flags & NGBE_FLAG_MSIX_ENABLED)) { + /* We only support one q_vector without MSI-X */ + max_combined = 1; + } else if (adapter->flags & NGBE_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 = NGBE_MAX_FDIR_INDICES; + } else { + /* support up to max allowed queues with RSS */ + max_combined = ngbe_max_rss_indices(adapter); + } + + return max_combined; +} + +static void ngbe_get_channels(struct net_device *dev, + struct ethtool_channels *ch) +{ + struct ngbe_adapter *adapter = netdev_priv(dev); + + /* report maximum channels */ + ch->max_combined = ngbe_max_channels(adapter); + + /* report info for other vector */ + if (adapter->flags & NGBE_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 & NGBE_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; + +} + +static int ngbe_set_channels(struct net_device *dev, + struct ethtool_channels *ch) +{ + struct ngbe_adapter *adapter = netdev_priv(dev); + unsigned int count = ch->combined_count; + u8 max_rss_indices = ngbe_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 > ngbe_max_channels(adapter)) + return -EINVAL; + + /* 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 ngbe_setup_tc(dev, netdev_get_num_tc(dev)); +} + +static int ngbe_get_eee(struct net_device *netdev, struct ethtool_eee *edata) +{ + return 0; +} + +static int ngbe_set_eee(struct net_device *netdev, struct ethtool_eee *edata) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + struct ethtool_eee eee_data; + s32 ret_val; + + if (!(hw->mac.ops.setup_eee && + (adapter->flags2 & NGBE_FLAG2_EEE_CAPABLE))) + return -EOPNOTSUPP; + + memset(&eee_data, 0, sizeof(struct ethtool_eee)); + + ret_val = ngbe_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 |= NGBE_FLAG2_EEE_ENABLED; + else + adapter->flags2 &= ~NGBE_FLAG2_EEE_ENABLED; + + /* reset link */ + if (netif_running(netdev)) + ngbe_reinit_locked(adapter); + else + ngbe_reset(adapter); + } + + return 0; +} + +static int ngbe_set_flash(struct net_device *netdev, struct ethtool_flash *ef) +{ + int ret; + const struct firmware *fw; + struct ngbe_adapter *adapter = netdev_priv(netdev); + + ret = request_firmware(&fw, ef->data, &netdev->dev); + if (ret < 0) + return ret; + + if (ef->region == 0) { + ret = ngbe_upgrade_flash(&adapter->hw, ef->region, + fw->data, fw->size); + } else { + if (ngbe_mng_present(&adapter->hw)) { + ret = ngbe_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, reboot to make firmware work\n", ef->data); + return ret; +} + + +static struct ethtool_ops ngbe_ethtool_ops = { + .get_link_ksettings = ngbe_get_link_ksettings, + .set_link_ksettings = ngbe_set_link_ksettings, + .get_drvinfo = ngbe_get_drvinfo, + .get_regs_len = ngbe_get_regs_len, + .get_regs = ngbe_get_regs, + .get_wol = ngbe_get_wol, + .set_wol = ngbe_set_wol, + .nway_reset = ngbe_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = ngbe_get_eeprom_len, + .get_eeprom = ngbe_get_eeprom, + .set_eeprom = ngbe_set_eeprom, + .get_ringparam = ngbe_get_ringparam, + .set_ringparam = ngbe_set_ringparam, + .get_pauseparam = ngbe_get_pauseparam, + .set_pauseparam = ngbe_set_pauseparam, + .get_msglevel = ngbe_get_msglevel, + .set_msglevel = ngbe_set_msglevel, + .self_test = ngbe_diag_test, + .get_strings = ngbe_get_strings, + .set_phys_id = ngbe_set_phys_id, + .get_sset_count = ngbe_get_sset_count, + .get_ethtool_stats = ngbe_get_ethtool_stats, + .get_coalesce = ngbe_get_coalesce, + .set_coalesce = ngbe_set_coalesce, + .get_rxnfc = ngbe_get_rxnfc, + .set_rxnfc = ngbe_set_rxnfc, + .get_eee = ngbe_get_eee, + .set_eee = ngbe_set_eee, + .get_channels = ngbe_get_channels, + .set_channels = ngbe_set_channels, + .get_ts_info = ngbe_get_ts_info, + .get_rxfh_indir_size = ngbe_rss_indir_size, + .get_rxfh_key_size = ngbe_get_rxfh_key_size, + .get_rxfh = ngbe_get_rxfh, + .set_rxfh = ngbe_set_rxfh, + .flash_device = ngbe_set_flash, +}; + +void ngbe_set_ethtool_ops(struct net_device *netdev) +{ + netdev->ethtool_ops = &ngbe_ethtool_ops; +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_hw.c b/drivers/net/ethernet/netswift/ngbe/ngbe_hw.c new file mode 100644 index 0000000000000..73b8a328c267d --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_hw.c @@ -0,0 +1,5047 @@ +/* + * WangXun 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 "ngbe_type.h" +#include "ngbe_hw.h" +#include "ngbe_phy.h" +#include "ngbe.h" + +#define NGBE_SP_MAX_TX_QUEUES 8 +#define NGBE_SP_MAX_RX_QUEUES 8 +#define NGBE_SP_RAR_ENTRIES 32 +#define NGBE_SP_MC_TBL_SIZE 128 +#define NGBE_SP_VFT_TBL_SIZE 128 +#define NGBE_SP_RX_PB_SIZE 42 + +STATIC s32 ngbe_get_eeprom_semaphore(struct ngbe_hw *hw); +STATIC void ngbe_release_eeprom_semaphore(struct ngbe_hw *hw); +STATIC s32 ngbe_mta_vector(struct ngbe_hw *hw, u8 *mc_addr); + +STATIC s32 ngbe_setup_copper_link(struct ngbe_hw *hw, + u32 speed, + bool need_restart_AN); +s32 ngbe_check_mac_link(struct ngbe_hw *hw, u32 *speed, + bool *link_up, bool link_up_wait_to_complete); +s32 ngbe_check_mac_link_mdi(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete); +s32 ngbe_check_mac_link_yt8521s(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete); + +u32 ngbe_rd32_epcs(struct ngbe_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 = NGBE_XPCS_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = NGBE_XPCS_IDA_DATA; + data = rd32(hw, portRegOffset); + + return data; +} + +void ngbe_wr32_ephy(struct ngbe_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 = NGBE_ETHPHY_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = NGBE_ETHPHY_IDA_DATA; + wr32(hw, portRegOffset, data); +} + +void ngbe_wr32_epcs(struct ngbe_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 = NGBE_XPCS_IDA_ADDR; + wr32(hw, portRegOffset, addr); + + /* 2nd, read the data from IDA_DATA register */ + portRegOffset = NGBE_XPCS_IDA_DATA; + wr32(hw, portRegOffset, data); +} + +/** + * ngbe_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 ngbe_get_pcie_msix_count(struct ngbe_hw *hw) +{ + u16 msix_count = 1; + u16 max_msix_count; + u32 pos; + + DEBUGFUNC("\n"); + + /* ??? max_msix_count for emerald */ + max_msix_count = NGBE_MAX_MSIX_VECTORS_EMERALD; + pos = pci_find_capability(((struct ngbe_adapter *)hw->back)->pdev, + PCI_CAP_ID_MSIX); + if (!pos) + return msix_count; + pci_read_config_word(((struct ngbe_adapter *)hw->back)->pdev, + pos + PCI_MSIX_FLAGS, &msix_count); + + if (NGBE_REMOVED(hw->hw_addr)) + msix_count = 0; + msix_count &= NGBE_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; +} + +/** + * ngbe_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 ngbe_init_hw(struct ngbe_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; +} + + +/** + * ngbe_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 ngbe_clear_hw_cntrs(struct ngbe_hw *hw) +{ + u16 i = 0; + + DEBUGFUNC("\n"); + + rd32(hw, NGBE_RX_CRC_ERROR_FRAMES_LOW); + rd32(hw, NGBE_RX_LEN_ERROR_FRAMES_LOW); + rd32(hw, NGBE_RDB_LXONTXC); + rd32(hw, NGBE_RDB_LXOFFTXC); + /* ??? 1e0c not found */ + /* rd32(hw, NGBE_MAC_LXONRXC); */ + rd32(hw, NGBE_MAC_LXOFFRXC); + + for (i = 0; i < 8; i++) { + /* ??? move 16? */ + wr32m(hw, NGBE_MMC_CONTROL, NGBE_MMC_CONTROL_UP, i<<16); + rd32(hw, NGBE_MAC_PXOFFRXC); + } + + for (i = 0; i < 8; i++) { + wr32(hw, NGBE_PX_MPRC(i), 0); + } + /* BPRC */ + + rd32(hw, NGBE_PX_GPRC); + rd32(hw, NGBE_PX_GPTC); + rd32(hw, NGBE_PX_GORC_MSB); + rd32(hw, NGBE_PX_GOTC_MSB); + + rd32(hw, NGBE_RX_BC_FRAMES_GOOD_LOW); + rd32(hw, NGBE_RX_UNDERSIZE_FRAMES_GOOD); + rd32(hw, NGBE_RX_OVERSIZE_FRAMES_GOOD); + rd32(hw, NGBE_RX_FRAME_CNT_GOOD_BAD_LOW); + rd32(hw, NGBE_TX_FRAME_CNT_GOOD_BAD_LOW); + rd32(hw, NGBE_TX_MC_FRAMES_GOOD_LOW); + rd32(hw, NGBE_TX_BC_FRAMES_GOOD_LOW); + rd32(hw, NGBE_RDM_DRP_PKT); + return 0; +} + +/** + * ngbe_setup_fc - Set up flow control + * @hw: pointer to hardware structure + * + * Called at init time to set up flow control. + **/ +s32 ngbe_setup_fc(struct ngbe_hw *hw) +{ + s32 ret_val = 0; + u16 pcap_backplane = 0; + + DEBUGFUNC("\n"); + + /* Validate the requested mode */ + if (hw->fc.strict_ieee && hw->fc.requested_mode == ngbe_fc_rx_pause) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "ngbe_fc_rx_pause not valid in strict IEEE mode\n"); + ret_val = NGBE_ERR_INVALID_LINK_SETTINGS; + goto out; + } + + /* + * gig 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 == ngbe_fc_default) + hw->fc.requested_mode = ngbe_fc_full; + + /* + * 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 ngbe_fc_none: + /* Flow control completely disabled by software override. */ + break; + case ngbe_fc_tx_pause: + /* + * Tx Flow control is enabled, and Rx Flow control is + * disabled by software override. + */ + if (hw->phy.type != ngbe_phy_m88e1512_sfi && + hw->phy.type != ngbe_phy_yt8521s_sfi) + pcap_backplane |= NGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM; + else + pcap_backplane |= 0x100; + break; + case ngbe_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 ngbe_fc_full: + /* Flow control (both Rx and Tx) is enabled by SW override. */ + if (hw->phy.type != ngbe_phy_m88e1512_sfi && + hw->phy.type != ngbe_phy_yt8521s_sfi) + pcap_backplane |= NGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM | + NGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM; + else + pcap_backplane |= 0x80; + break; + default: + ERROR_REPORT1(NGBE_ERROR_ARGUMENT, + "Flow control param set incorrectly\n"); + ret_val = NGBE_ERR_CONFIG; + goto out; + break; + } + + /* + * AUTOC restart handles negotiation of 1G on backplane + * and copper. + */ + if ((hw->phy.media_type == ngbe_media_type_copper)) { + ret_val = TCALL(hw, phy.ops.set_adv_pause, pcap_backplane); + } + +out: + return ret_val; +} + + +/** + * ngbe_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 ngbe_get_mac_addr(struct ngbe_hw *hw, u8 *mac_addr) +{ + u32 rar_high; + u32 rar_low; + u16 i; + + DEBUGFUNC("\n"); + + wr32(hw, NGBE_PSR_MAC_SWC_IDX, 0); + rar_high = rd32(hw, NGBE_PSR_MAC_SWC_AD_H); + rar_low = rd32(hw, NGBE_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; +} + +/** + * ngbe_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 ngbe_hw structure + **/ +void ngbe_set_pci_config_data(struct ngbe_hw *hw, u16 link_status) +{ + if (hw->bus.type == ngbe_bus_type_unknown) + hw->bus.type = ngbe_bus_type_pci_express; + + switch (link_status & NGBE_PCI_LINK_WIDTH) { + case NGBE_PCI_LINK_WIDTH_1: + hw->bus.width = ngbe_bus_width_pcie_x1; + break; + case NGBE_PCI_LINK_WIDTH_2: + hw->bus.width = ngbe_bus_width_pcie_x2; + break; + case NGBE_PCI_LINK_WIDTH_4: + hw->bus.width = ngbe_bus_width_pcie_x4; + break; + case NGBE_PCI_LINK_WIDTH_8: + hw->bus.width = ngbe_bus_width_pcie_x8; + break; + default: + hw->bus.width = ngbe_bus_width_unknown; + break; + } + + switch (link_status & NGBE_PCI_LINK_SPEED) { + case NGBE_PCI_LINK_SPEED_2500: + hw->bus.speed = ngbe_bus_speed_2500; + break; + case NGBE_PCI_LINK_SPEED_5000: + hw->bus.speed = ngbe_bus_speed_5000; + break; + case NGBE_PCI_LINK_SPEED_8000: + hw->bus.speed = ngbe_bus_speed_8000; + break; + default: + hw->bus.speed = ngbe_bus_speed_unknown; + break; + } +} + +/** + * ngbe_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 ngbe_hw structure. + **/ +s32 ngbe_get_bus_info(struct ngbe_hw *hw) +{ + u16 link_status; + + DEBUGFUNC("\n"); + + /* Get the negotiated link width and speed from PCI config space */ + link_status = NGBE_READ_PCIE_WORD(hw, NGBE_PCI_LINK_STATUS); + + ngbe_set_pci_config_data(hw, link_status); + + return 0; +} + +/** + * ngbe_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 ngbe_set_lan_id_multi_port_pcie(struct ngbe_hw *hw) +{ + struct ngbe_bus_info *bus = &hw->bus; + u32 reg = 0; + + DEBUGFUNC("\n"); + + reg = rd32(hw, NGBE_CFG_PORT_ST); + bus->lan_id = NGBE_CFG_PORT_ST_LAN_ID(reg); + bus->func = bus->lan_id; +} + +/** + * ngbe_stop_adapter - Generic stop Tx/Rx units + * @hw: pointer to hardware structure + * + * Sets the adapter_stopped flag within ngbe_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 ngbe_stop_adapter(struct ngbe_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 */ + ngbe_intr_disable(hw, NGBE_INTR_ALL); + + /* Clear any pending interrupts, flush previous writes */ + wr32(hw, NGBE_PX_MISC_IC, 0xffffffff); + + /* ??? 0bit RW->RO */ + wr32(hw, NGBE_BME_CTL, 0x3); + + /* Disable the transmit unit. Each queue must be disabled. */ + for (i = 0; i < hw->mac.max_tx_queues; i++) { + wr32m(hw, NGBE_PX_TR_CFG(i), + NGBE_PX_TR_CFG_SWFLSH | NGBE_PX_TR_CFG_ENABLE, + NGBE_PX_TR_CFG_SWFLSH); + } + + /* Disable the receive unit by stopping each queue */ + for (i = 0; i < hw->mac.max_rx_queues; i++) { + wr32m(hw, NGBE_PX_RR_CFG(i), + NGBE_PX_RR_CFG_RR_EN, 0); + } + + /* flush all queues disables */ + NGBE_WRITE_FLUSH(hw); + msec_delay(2); + + /* + * Prevent the PCI-E bus from hanging by disabling PCI-E master + * access and verify no pending requests + */ + return ngbe_disable_pcie_master(hw); +} + +/** + * ngbe_led_on - Turns on the software controllable LEDs. + * @hw: pointer to hardware structure + * @index: led number to turn on + **/ +s32 ngbe_led_on(struct ngbe_hw *hw, u32 index) +{ + u32 led_reg = rd32(hw, NGBE_CFG_LED_CTL); + + DEBUGFUNC("\n"); + + /* ??? */ + /* To turn on the LED, set mode to ON. */ + led_reg |= index | (index << NGBE_CFG_LED_CTL_LINK_OD_SHIFT); + wr32(hw, NGBE_CFG_LED_CTL, led_reg); + NGBE_WRITE_FLUSH(hw); + + return 0; +} + +/** + * ngbe_led_off - Turns off the software controllable LEDs. + * @hw: pointer to hardware structure + * @index: led number to turn off + **/ +s32 ngbe_led_off(struct ngbe_hw *hw, u32 index) +{ + u32 led_reg = rd32(hw, NGBE_CFG_LED_CTL); + + DEBUGFUNC("\n"); + + /* To turn off the LED, set mode to OFF. */ + led_reg &= ~(index << NGBE_CFG_LED_CTL_LINK_OD_SHIFT); + led_reg |= index; + wr32(hw, NGBE_CFG_LED_CTL, led_reg); + NGBE_WRITE_FLUSH(hw); + return 0; +} + +/** + * ngbe_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 ngbe_get_eeprom_semaphore(struct ngbe_hw *hw) +{ + s32 status = NGBE_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, NGBE_MIS_SWSM); + if (!(swsm & NGBE_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 + */ + ngbe_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, NGBE_MIS_SWSM); + if (!(swsm & NGBE_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 (ngbe_check_mng_access(hw)) { + /* Set the SW EEPROM semaphore bit to request access */ + wr32m(hw, NGBE_MNG_SW_SM, + NGBE_MNG_SW_SM_SM, NGBE_MNG_SW_SM_SM); + + /* + * If we set the bit successfully then we got + * semaphore. + */ + swsm = rd32(hw, NGBE_MNG_SW_SM); + if (swsm & NGBE_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(NGBE_ERROR_POLLING, + "SWESMBI Software EEPROM semaphore not granted.\n"); + ngbe_release_eeprom_semaphore(hw); + status = NGBE_ERR_EEPROM; + } + } else { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "Software semaphore SMBI between device drivers " + "not granted.\n"); + } + + return status; +} + +/** + * ngbe_release_eeprom_semaphore - Release hardware semaphore + * @hw: pointer to hardware structure + * + * This function clears hardware semaphore bits. + **/ +STATIC void ngbe_release_eeprom_semaphore(struct ngbe_hw *hw) +{ + if (ngbe_check_mng_access(hw)) { + wr32m(hw, NGBE_MNG_SW_SM, + NGBE_MNG_SW_SM_SM, 0); + wr32m(hw, NGBE_MIS_SWSM, + NGBE_MIS_SWSM_SMBI, 0); + NGBE_WRITE_FLUSH(hw); + } +} + +/** + * ngbe_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 ngbe_validate_mac_addr(u8 *mac_addr) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + /* Make sure it is not a multicast address */ + if (NGBE_IS_MULTICAST(mac_addr)) { + DEBUGOUT("MAC address is multicast\n"); + status = NGBE_ERR_INVALID_MAC_ADDR; + /* Not a broadcast address */ + } else if (NGBE_IS_BROADCAST(mac_addr)) { + DEBUGOUT("MAC address is broadcast\n"); + status = NGBE_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 = NGBE_ERR_INVALID_MAC_ADDR; + } + return status; +} + +/** + * ngbe_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 ngbe_set_rar(struct ngbe_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(NGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", index); + return NGBE_ERR_INVALID_ARGUMENT; + } + + /* select the MAC address */ + wr32(hw, NGBE_PSR_MAC_SWC_IDX, index); + + /* setup VMDq pool mapping */ + wr32(hw, NGBE_PSR_MAC_SWC_VM, pools & 0xFFFFFFFF); + + /* + * 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 |= NGBE_PSR_MAC_SWC_AD_H_AV; + + wr32(hw, NGBE_PSR_MAC_SWC_AD_L, rar_low); + wr32m(hw, NGBE_PSR_MAC_SWC_AD_H, + (NGBE_PSR_MAC_SWC_AD_H_AD(~0) | + NGBE_PSR_MAC_SWC_AD_H_ADTYPE(~0) | + NGBE_PSR_MAC_SWC_AD_H_AV), + rar_high); + + return 0; +} + +/** + * ngbe_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 ngbe_clear_rar(struct ngbe_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(NGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", index); + return NGBE_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, NGBE_PSR_MAC_SWC_IDX, index); + + wr32(hw, NGBE_PSR_MAC_SWC_VM, 0); + wr32(hw, NGBE_PSR_MAC_SWC_AD_L, 0); + wr32m(hw, NGBE_PSR_MAC_SWC_AD_H, + (NGBE_PSR_MAC_SWC_AD_H_AD(~0) | + NGBE_PSR_MAC_SWC_AD_H_ADTYPE(~0) | + NGBE_PSR_MAC_SWC_AD_H_AV), + 0); + + return 0; +} + +/** + * ngbe_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 ngbe_init_rx_addrs(struct ngbe_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 (ngbe_validate_mac_addr(hw->mac.addr) == + NGBE_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, + NGBE_PSR_MAC_SWC_AD_H_AV); + } + 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, NGBE_PSR_MAC_SWC_IDX, i); + wr32(hw, NGBE_PSR_MAC_SWC_AD_L, 0); + wr32(hw, NGBE_PSR_MAC_SWC_AD_H, 0); + } + + /* Clear the MTA */ + hw->addr_ctrl.mta_in_use = 0; + psrctl = rd32(hw, NGBE_PSR_CTL); + psrctl &= ~(NGBE_PSR_CTL_MO | NGBE_PSR_CTL_MFE); + psrctl |= hw->mac.mc_filter_type << NGBE_PSR_CTL_MO_SHIFT; + wr32(hw, NGBE_PSR_CTL, psrctl); + DEBUGOUT(" Clearing MTA\n"); + for (i = 0; i < hw->mac.mcft_size; i++) + wr32(hw, NGBE_PSR_MC_TBL(i), 0); + + TCALL(hw, mac.ops.init_uta_tables); + + return 0; +} + +/** + * ngbe_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 ngbe_add_uc_addr(struct ngbe_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, + NGBE_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("ngbe_add_uc_addr Complete\n"); +} + +/** + * ngbe_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 ngbe_update_uc_addr_list(struct ngbe_hw *hw, u8 *addr_list, + u32 addr_count, ngbe_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, NGBE_PSR_MAC_SWC_IDX, 1 + i); + wr32(hw, NGBE_PSR_MAC_SWC_AD_L, 0); + wr32(hw, NGBE_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); + ngbe_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, NGBE_PSR_CTL, + NGBE_PSR_CTL_UPE, NGBE_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, NGBE_PSR_CTL, + NGBE_PSR_CTL_UPE, 0); + } + } + + DEBUGOUT("ngbe_update_uc_addr_list Complete\n"); + return 0; +} + +/** + * ngbe_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 ngbe_mta_vector(struct ngbe_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; +} + +/** + * ngbe_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 ngbe_set_mta(struct ngbe_hw *hw, u8 *mc_addr) +{ + u32 vector; + u32 vector_bit; + u32 vector_reg; + + DEBUGFUNC("\n"); + + hw->addr_ctrl.mta_in_use++; + + vector = ngbe_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); +} + +/** + * ngbe_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 ngbe_update_mc_addr_list(struct ngbe_hw *hw, u8 *mc_addr_list, + u32 mc_addr_count, ngbe_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"); + ngbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq)); + } + + /* Enable mta */ + for (i = 0; i < hw->mac.mcft_size; i++) + wr32a(hw, NGBE_PSR_MC_TBL(0), i, + hw->mac.mta_shadow[i]); + + if (hw->addr_ctrl.mta_in_use > 0) { + psrctl = rd32(hw, NGBE_PSR_CTL); + psrctl &= ~(NGBE_PSR_CTL_MO | NGBE_PSR_CTL_MFE); + psrctl |= NGBE_PSR_CTL_MFE | + (hw->mac.mc_filter_type << NGBE_PSR_CTL_MO_SHIFT); + wr32(hw, NGBE_PSR_CTL, psrctl); + } + + DEBUGOUT("ngbe_update_mc_addr_list Complete\n"); + return 0; +} + +/** + * ngbe_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 ngbe_enable_mc(struct ngbe_hw *hw) +{ + struct ngbe_addr_filter_info *a = &hw->addr_ctrl; + u32 psrctl; + + DEBUGFUNC("\n"); + + if (a->mta_in_use > 0) { + psrctl = rd32(hw, NGBE_PSR_CTL); + psrctl &= ~(NGBE_PSR_CTL_MO | NGBE_PSR_CTL_MFE); + psrctl |= NGBE_PSR_CTL_MFE | + (hw->mac.mc_filter_type << NGBE_PSR_CTL_MO_SHIFT); + wr32(hw, NGBE_PSR_CTL, psrctl); + } + + return 0; +} + +/** + * ngbe_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 ngbe_disable_mc(struct ngbe_hw *hw) +{ + struct ngbe_addr_filter_info *a = &hw->addr_ctrl; + u32 psrctl; + DEBUGFUNC("\n"); + + if (a->mta_in_use > 0) { + psrctl = rd32(hw, NGBE_PSR_CTL); + psrctl &= ~(NGBE_PSR_CTL_MO | NGBE_PSR_CTL_MFE); + psrctl |= hw->mac.mc_filter_type << NGBE_PSR_CTL_MO_SHIFT; + wr32(hw, NGBE_PSR_CTL, psrctl); + } + + return 0; +} + +/** + * ngbe_fc_enable - Enable flow control + * @hw: pointer to hardware structure + * + * Enable flow control according to the current settings. + **/ +s32 ngbe_fc_enable(struct ngbe_hw *hw) +{ + s32 ret_val = 0; + u32 mflcn_reg, fccfg_reg; + u32 reg; + u32 fcrtl, fcrth; + + DEBUGFUNC("\n"); + + /* Validate the water mark configuration */ + if (!hw->fc.pause_time) { + ret_val = NGBE_ERR_INVALID_LINK_SETTINGS; + goto out; + } + + + /* Low water mark of zero causes XOFF floods */ + if ((hw->fc.current_mode & ngbe_fc_tx_pause) && hw->fc.high_water) { + if (!hw->fc.low_water || hw->fc.low_water >= hw->fc.high_water) { + DEBUGOUT("Invalid water mark configuration\n"); + ret_val = NGBE_ERR_INVALID_LINK_SETTINGS; + goto out; + } + } + + /* Negotiate the fc mode to use */ + ngbe_fc_autoneg(hw); + + /* Disable any previous flow control settings */ + mflcn_reg = rd32(hw, NGBE_MAC_RX_FLOW_CTRL); + mflcn_reg &= ~NGBE_MAC_RX_FLOW_CTRL_RFE; + + fccfg_reg = rd32(hw, NGBE_RDB_RFCC); + fccfg_reg &= ~NGBE_RDB_RFCC_RFCE_802_3X; + + /* + * 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 ngbe_fc_none: + /* + * Flow control is disabled by software override or autoneg. + * The code below will actually disable it in the HW. + */ + break; + case ngbe_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 |= NGBE_MAC_RX_FLOW_CTRL_RFE; + break; + case ngbe_fc_tx_pause: + /* + * Tx Flow control is enabled, and Rx Flow control is + * disabled by software override. + */ + fccfg_reg |= NGBE_RDB_RFCC_RFCE_802_3X; + break; + case ngbe_fc_full: + /* Flow control (both Rx and Tx) is enabled by SW override. */ + mflcn_reg |= NGBE_MAC_RX_FLOW_CTRL_RFE; + fccfg_reg |= NGBE_RDB_RFCC_RFCE_802_3X; + break; + default: + ERROR_REPORT1(NGBE_ERROR_ARGUMENT, + "Flow control param set incorrectly\n"); + ret_val = NGBE_ERR_CONFIG; + goto out; + break; + } + + /* Set 802.3x based flow control settings. */ + wr32(hw, NGBE_MAC_RX_FLOW_CTRL, mflcn_reg); + wr32(hw, NGBE_RDB_RFCC, fccfg_reg); + + /* Set up and enable Rx high/low water mark thresholds, enable XON. */ + if ((hw->fc.current_mode & ngbe_fc_tx_pause) && + hw->fc.high_water) { + /* 32Byte granularity */ + fcrtl = (hw->fc.low_water << 10) | + NGBE_RDB_RFCL_XONE; + wr32(hw, NGBE_RDB_RFCL, fcrtl); + fcrth = (hw->fc.high_water << 10) | + NGBE_RDB_RFCH_XOFFE; + } else { + wr32(hw, NGBE_RDB_RFCL, 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, NGBE_RDB_PB_SZ) - 24576; + } + + wr32(hw, NGBE_RDB_RFCH, fcrth); + + /* Configure pause time (2 TCs per register) */ + reg = hw->fc.pause_time * 0x00010000; + wr32(hw, NGBE_RDB_RFCV, reg); + + /* Configure flow control refresh threshold value */ + wr32(hw, NGBE_RDB_RFCRT, hw->fc.pause_time / 2); + +out: + return ret_val; +} + +/** + * ngbe_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 ngbe_negotiate_fc(struct ngbe_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(NGBE_ERROR_UNSUPPORTED, + "Local or link partner's advertised flow control " + "settings are NULL. Local: %x, link partner: %x\n", + adv_reg, lp_reg); + return NGBE_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 == ngbe_fc_full) { + hw->fc.current_mode = ngbe_fc_full; + DEBUGOUT("Flow Control = FULL.\n"); + } else { + hw->fc.current_mode = ngbe_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 = ngbe_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 = ngbe_fc_rx_pause; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } else { + hw->fc.current_mode = ngbe_fc_none; + DEBUGOUT("Flow Control = NONE.\n"); + } + return 0; +} + +/** + * ngbe_fc_autoneg_copper - Enable flow control IEEE clause 37 + * @hw: pointer to hardware structure + * + * Enable flow control according to IEEE clause 37. + **/ +STATIC s32 ngbe_fc_autoneg_copper(struct ngbe_hw *hw) +{ + u8 technology_ability_reg = 0; + u8 lp_technology_ability_reg = 0; + + TCALL(hw, phy.ops.get_adv_pause, &technology_ability_reg); + TCALL(hw, phy.ops.get_lp_adv_pause, &lp_technology_ability_reg); + + return ngbe_negotiate_fc(hw, (u32)technology_ability_reg, + (u32)lp_technology_ability_reg, + NGBE_TAF_SYM_PAUSE, NGBE_TAF_ASM_PAUSE, + NGBE_TAF_SYM_PAUSE, NGBE_TAF_ASM_PAUSE); +} + +/** + * ngbe_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 ngbe_fc_autoneg(struct ngbe_hw *hw) +{ + s32 ret_val = NGBE_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(NGBE_ERROR_UNSUPPORTED, + "Flow control autoneg is disabled"); + goto out; + } + + TCALL(hw, mac.ops.check_link, &speed, &link_up, false); + if (!link_up) { + ERROR_REPORT1(NGBE_ERROR_SOFTWARE, "The link is down"); + goto out; + } + + switch (hw->phy.media_type) { + /* Autoneg flow control on fiber adapters */ + case ngbe_media_type_fiber: + break; + + /* Autoneg flow control on copper adapters */ + case ngbe_media_type_copper: + ret_val = ngbe_fc_autoneg_copper(hw); + break; + + default: + break; + } + +out: + if (ret_val == NGBE_OK) { + hw->fc.fc_was_autonegged = true; + } else { + hw->fc.fc_was_autonegged = false; + hw->fc.current_mode = hw->fc.requested_mode; + } +} + +/** + * ngbe_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. NGBE_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 ngbe_disable_pcie_master(struct ngbe_hw *hw) +{ + s32 status = 0; + u32 i; + + DEBUGFUNC("\n"); + + /* Always set this bit to ensure any future transactions are blocked */ + pci_clear_master(((struct ngbe_adapter *)hw->back)->pdev); + + /* Exit if master requests are blocked */ + if (!(rd32(hw, NGBE_PX_TRANSACTION_PENDING)) || + NGBE_REMOVED(hw->hw_addr)) + goto out; + + + /* Poll for master request bit to clear */ + for (i = 0; i < NGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) { + usec_delay(100); + if (!(rd32(hw, NGBE_PX_TRANSACTION_PENDING))) + goto out; + } + + + ERROR_REPORT1(NGBE_ERROR_POLLING, + "PCIe transaction pending bit did not clear.\n"); + status = NGBE_ERR_MASTER_REQUESTS_PENDING; + +out: + return status; +} + +/** + * ngbe_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 ngbe_acquire_swfw_sync(struct ngbe_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 (ngbe_get_eeprom_semaphore(hw)) + return NGBE_ERR_SWFW_SYNC; + + if (ngbe_check_mng_access(hw)) { + gssr = rd32(hw, NGBE_MNG_SWFW_SYNC); + if (!(gssr & (fwmask | swmask))) { + gssr |= swmask; + wr32(hw, NGBE_MNG_SWFW_SYNC, gssr); + ngbe_release_eeprom_semaphore(hw); + return 0; + } else { + /* Resource is currently in use by FW or SW */ + ngbe_release_eeprom_semaphore(hw); + msec_delay(5); + } + } + } + + ERROR_REPORT1(NGBE_ERROR_POLLING, + "ngbe_acquire_swfw_sync: i = %u, gssr = %u\n", i, gssr); + + + /* If time expired clear the bits holding the lock and retry */ + if (gssr & (fwmask | swmask)) + ngbe_release_swfw_sync(hw, gssr & (fwmask | swmask)); + + msec_delay(5); + return NGBE_ERR_SWFW_SYNC; +} + +/** + * ngbe_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 ngbe_release_swfw_sync(struct ngbe_hw *hw, u32 mask) +{ + ngbe_get_eeprom_semaphore(hw); + if (ngbe_check_mng_access(hw)) + wr32m(hw, NGBE_MNG_SWFW_SYNC, mask, 0); + + ngbe_release_eeprom_semaphore(hw); +} + +/** + * ngbe_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 ngbe_disable_sec_rx_path(struct ngbe_hw *hw) +{ +#define NGBE_MAX_SECRX_POLL 40 + + int i; + int secrxreg; + + DEBUGFUNC("\n"); + + wr32m(hw, NGBE_RSEC_CTL, + NGBE_RSEC_CTL_RX_DIS, NGBE_RSEC_CTL_RX_DIS); + for (i = 0; i < NGBE_MAX_SECRX_POLL; i++) { + secrxreg = rd32(hw, NGBE_RSEC_ST); + if (secrxreg & NGBE_RSEC_ST_RSEC_RDY) + break; + else + /* Use interrupt-safe sleep just in case */ + usec_delay(1000); + } + + /* For informational purposes only */ + if (i >= NGBE_MAX_SECRX_POLL) + DEBUGOUT("Rx unit being enabled before security " + "path fully disabled. Continuing with init.\n"); + + return 0; +} + +/** + * ngbe_enable_sec_rx_path - Enables the receive data path + * @hw: pointer to hardware structure + * + * Enables the receive data path. + **/ +s32 ngbe_enable_sec_rx_path(struct ngbe_hw *hw) +{ + DEBUGFUNC("\n"); + + wr32m(hw, NGBE_RSEC_CTL, + NGBE_RSEC_CTL_RX_DIS, 0); + NGBE_WRITE_FLUSH(hw); + + return 0; +} + +/** + * ngbe_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 ngbe_insert_mac_addr(struct ngbe_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, NGBE_PSR_MAC_SWC_IDX, rar); + rar_high = rd32(hw, NGBE_PSR_MAC_SWC_AD_H); + + if (((NGBE_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, NGBE_PSR_MAC_SWC_AD_L); + if (rar_low == addr_low) + break; /* found it already in the rars */ + } + } + + if (rar < hw->mac.rar_highwater) { + + } 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, + NGBE_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, + NGBE_PSR_MAC_SWC_AD_H_AV); + hw->mac.rar_highwater++; + } else if (rar >= hw->mac.num_rar_entries) { + return NGBE_ERR_INVALID_MAC_ADDR; + } + + return rar; +} + +/** + * ngbe_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 ngbe_clear_vmdq(struct ngbe_hw *hw, u32 rar, u32 vmdq) +{ + u32 mpsar_lo; + 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(NGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", rar); + return NGBE_ERR_INVALID_ARGUMENT; + } + + wr32(hw, NGBE_PSR_MAC_SWC_IDX, rar); + mpsar_lo = rd32(hw, NGBE_PSR_MAC_SWC_VM); + + if (NGBE_REMOVED(hw->hw_addr)) + goto done; + + if (!mpsar_lo) + goto done; + + /* was that the last pool using this rar? */ + if (mpsar_lo == 0 && rar != 0) + TCALL(hw, mac.ops.clear_rar, rar); +done: + return 0; +} + +/** + * ngbe_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 ngbe_set_vmdq(struct ngbe_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(NGBE_ERROR_ARGUMENT, + "RAR index %d is out of range.\n", rar); + return NGBE_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] + * + * ngbe_set_vmdq_san_mac - Associate default VMDq pool index with a rx address + * @hw: pointer to hardware struct + * @vmdq: VMDq pool index + **/ +s32 ngbe_set_vmdq_san_mac(struct ngbe_hw *hw, u32 vmdq) +{ + u32 rar = hw->mac.san_mac_rar_index; + + DEBUGFUNC("\n"); + /* ??? */ + if (vmdq > 32) + return -1; + + wr32(hw, NGBE_PSR_MAC_SWC_IDX, rar); + wr32(hw, NGBE_PSR_MAC_SWC_VM, 1 << vmdq); + + return 0; +} + +/** + * ngbe_init_uta_tables - Initialize the Unicast Table Array + * @hw: pointer to hardware structure + **/ +s32 ngbe_init_uta_tables(struct ngbe_hw *hw) +{ + int i; + + DEBUGFUNC("\n"); + DEBUGOUT(" Clearing UTA\n"); + + for (i = 0; i < 128; i++) + wr32(hw, NGBE_PSR_UC_TBL(i), 0); + + return 0; +} + +/** + * ngbe_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 ngbe_find_vlvf_slot(struct ngbe_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 < NGBE_PSR_VLAN_SWC_ENTRIES; regindex++) { + wr32(hw, NGBE_PSR_VLAN_SWC_IDX, regindex); + bits = rd32(hw, NGBE_PSR_VLAN_SWC); + if (!bits && !(first_empty_slot)) + first_empty_slot = regindex; + else if ((bits & 0x0FFF) == vlan) + break; + } + + /* + * If regindex is less than NGBE_VLVF_ENTRIES, then we found the vlan + * in the VLVF. Else use the first empty VLVF register for this + * vlan id. + */ + if (regindex >= NGBE_PSR_VLAN_SWC_ENTRIES) { + if (first_empty_slot) + regindex = first_empty_slot; + else { + ERROR_REPORT1(NGBE_ERROR_SOFTWARE, + "No space in VLVF.\n"); + regindex = NGBE_ERR_NO_SPACE; + } + } + + return regindex; +} + +/** + * ngbe_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 ngbe_set_vfta(struct ngbe_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 NGBE_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 ngbe_set_vlvf to set VLVFB and VLVF + */ + ret_val = ngbe_set_vlvf(hw, vlan, vind, vlan_on, + &vfta_changed); + if (ret_val != 0) + return ret_val; + + if (vfta_changed) + wr32(hw, NGBE_PSR_VLAN_TBL(regindex), vfta); + /* errata 5 */ + hw->mac.vft_shadow[regindex] = vfta; + return 0; +} + +/** + * ngbe_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 ngbe_set_vlvf(struct ngbe_hw *hw, u32 vlan, u32 vind, + bool vlan_on, bool *vfta_changed) +{ + u32 vt; + + DEBUGFUNC("\n"); + + if (vlan > 4095) + return NGBE_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, NGBE_CFG_PORT_CTL); + if (vt & NGBE_CFG_PORT_CTL_NUM_VT_MASK) { + s32 vlvf_index; + u32 bits = 0; + + vlvf_index = ngbe_find_vlvf_slot(hw, vlan); + if (vlvf_index < 0) + return vlvf_index; + + wr32(hw, NGBE_PSR_VLAN_SWC_IDX, vlvf_index); + if (vlan_on) { + /* set the pool bit */ + if (vind < 32) { + bits = rd32(hw, + NGBE_PSR_VLAN_SWC_VM_L); + bits |= (1 << vind); + wr32(hw, + NGBE_PSR_VLAN_SWC_VM_L, + bits); + } + } else { + /* clear the pool bit */ + if (vind < 32) { + bits = rd32(hw, + NGBE_PSR_VLAN_SWC_VM_L); + bits &= ~(1 << vind); + wr32(hw, + NGBE_PSR_VLAN_SWC_VM_L, + bits); + } else { + bits |= rd32(hw, + NGBE_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, NGBE_PSR_VLAN_SWC, + (NGBE_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, NGBE_PSR_VLAN_SWC, 0); + } + + return 0; +} + +/** + * ngbe_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 ngbe_clear_vfta(struct ngbe_hw *hw) +{ + u32 offset; + + DEBUGFUNC("\n"); + + for (offset = 0; offset < hw->mac.vft_size; offset++) { + wr32(hw, NGBE_PSR_VLAN_TBL(offset), 0); + /* errata 5 */ + hw->mac.vft_shadow[offset] = 0; + } + + for (offset = 0; offset < NGBE_PSR_VLAN_SWC_ENTRIES; offset++) { + wr32(hw, NGBE_PSR_VLAN_SWC_IDX, offset); + wr32(hw, NGBE_PSR_VLAN_SWC, 0); + wr32(hw, NGBE_PSR_VLAN_SWC_VM_L, 0); + } + + return 0; +} + + +/** + * ngbe_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 ngbe_set_mac_anti_spoofing(struct ngbe_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, NGBE_TDM_MAC_AS_L, + pfvfspoof & 0xff); + } else { + wr32(hw, NGBE_TDM_MAC_AS_L, 0); + } +} + +/** + * ngbe_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 ngbe_set_vlan_anti_spoofing(struct ngbe_hw *hw, bool enable, int vf) +{ + u32 pfvfspoof; + + DEBUGFUNC("\n"); + + if (vf > 8) + return; + + pfvfspoof = rd32(hw, NGBE_TDM_VLAN_AS_L); + if (enable) + pfvfspoof |= (1 << vf); + else + pfvfspoof &= ~(1 << vf); + wr32(hw, NGBE_TDM_VLAN_AS_L, pfvfspoof); + +} + +/** + * ngbe_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 ngbe_set_ethertype_anti_spoofing(struct ngbe_hw *hw, + bool enable, int vf) +{ + u32 pfvfspoof; + + DEBUGFUNC("\n"); + + if (vf <= 8) { + pfvfspoof = rd32(hw, NGBE_TDM_ETYPE_AS_L); + if (enable) + pfvfspoof |= (1 << vf); + else + pfvfspoof &= ~(1 << vf); + wr32(hw, NGBE_TDM_ETYPE_AS_L, pfvfspoof); + } +} + +/** + * ngbe_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 ngbe_get_device_caps(struct ngbe_hw *hw, u16 *device_caps) +{ + DEBUGFUNC("\n"); + + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + NGBE_DEVICE_CAPS, device_caps); + + return 0; +} + +/** + * ngbe_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 ngbe_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); +} + + +s32 ngbe_host_interface_pass_command(struct ngbe_hw *hw, u32 *buffer, + u32 length, u32 timeout, bool return_data) +{ + u32 i; + u32 dword_len; + s32 status = 0; + + DEBUGFUNC("\n"); + + if (length == 0 || length > NGBE_HI_MAX_BLOCK_BYTE_LENGTH) { + DEBUGOUT1("Buffer length failure buffersize=%d.\n", length); + return NGBE_ERR_HOST_INTERFACE_COMMAND; + } + + if (TCALL(hw, mac.ops.acquire_swfw_sync, NGBE_MNG_SWFW_SYNC_SW_MB) + != 0) { + return NGBE_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 = NGBE_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 (ngbe_check_mng_access(hw)) + wr32a(hw, NGBE_MNG_MBOX, + i, NGBE_CPU_TO_LE32(buffer[i])); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + /* Setting this bit tells the ARC that a new command is pending. */ + if (ngbe_check_mng_access(hw)) + wr32m(hw, NGBE_MNG_MBOX_CTL, + NGBE_MNG_MBOX_CTL_SWRDY, NGBE_MNG_MBOX_CTL_SWRDY); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + +rel_out: + TCALL(hw, mac.ops.release_swfw_sync, NGBE_MNG_SWFW_SYNC_SW_MB); + return status; +} + +/** + * ngbe_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 NGBE_ERR_HOST_INTERFACE_COMMAND. + **/ +s32 ngbe_host_interface_command(struct ngbe_hw *hw, u32 *buffer, + u32 length, u32 timeout, bool return_data) +{ + u32 hicr, i, bi; + u32 hdr_size = sizeof(struct ngbe_hic_hdr); + u16 buf_len; + u32 dword_len; + s32 status = 0; + u32 buf[64] = {}; + + DEBUGFUNC("\n"); + + if (length == 0 || length > NGBE_HI_MAX_BLOCK_BYTE_LENGTH) { + DEBUGOUT1("Buffer length failure buffersize=%d.\n", length); + return NGBE_ERR_HOST_INTERFACE_COMMAND; + } + + if (TCALL(hw, mac.ops.acquire_swfw_sync, NGBE_MNG_SWFW_SYNC_SW_MB) + != 0) { + return NGBE_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 = NGBE_ERR_INVALID_ARGUMENT; + goto rel_out; + } + + /*read to clean all status*/ + if (ngbe_check_mng_access(hw)) { + hicr = rd32(hw, NGBE_MNG_MBOX_CTL); + if ((hicr & NGBE_MNG_MBOX_CTL_FWRDY)) + ERROR_REPORT1(NGBE_ERROR_CAUTION, + "fwrdy is set before command.\n"); + } + + dword_len = length >> 2; + + /* The device driver writes the relevant command block + * into the ram area. + */ + for (i = 0; i < dword_len; i++) { + if (ngbe_check_mng_access(hw)) + wr32a(hw, NGBE_MNG_MBOX, + i, NGBE_CPU_TO_LE32(buffer[i])); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + /* Setting this bit tells the ARC that a new command is pending. */ + if (ngbe_check_mng_access(hw)) + wr32m(hw, NGBE_MNG_MBOX_CTL, + NGBE_MNG_MBOX_CTL_SWRDY, NGBE_MNG_MBOX_CTL_SWRDY); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + + for (i = 0; i < timeout; i++) { + if (ngbe_check_mng_access(hw)) { + hicr = rd32(hw, NGBE_MNG_MBOX_CTL); + if ((hicr & NGBE_MNG_MBOX_CTL_FWRDY)) + break; + } + msec_delay(1); + } + + buf[0] = rd32(hw, NGBE_MNG_MBOX); + /* Check command completion */ + if (timeout != 0 && i == timeout) { + ERROR_REPORT1(NGBE_ERROR_CAUTION, + "Command has failed with no status valid.\n"); + printk("===%x= %x=\n", buffer[0] & 0xff, (~buf[0] >> 24)); + printk("===%08x\n", rd32(hw, 0x1e100)); + printk("===%08x\n", rd32(hw, 0x1e104)); + printk("===%08x\n", rd32(hw, 0x1e108)); + printk("===%08x\n", rd32(hw, 0x1e10c)); + printk("===%08x\n", rd32(hw, 0x1e044)); + printk("===%08x\n", rd32(hw, 0x10000)); + if ((buffer[0] & 0xff) != (~buf[0] >> 24)) { + status = NGBE_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 (ngbe_check_mng_access(hw)) { + buffer[bi] = rd32a(hw, NGBE_MNG_MBOX, + bi); + NGBE_LE32_TO_CPUS(&buffer[bi]); + } else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + + /* If there is any thing in data position pull it in */ + buf_len = ((struct ngbe_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 = NGBE_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 (ngbe_check_mng_access(hw)) { + buffer[bi] = rd32a(hw, NGBE_MNG_MBOX, + bi); + NGBE_LE32_TO_CPUS(&buffer[bi]); + } else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto rel_out; + } + } + +rel_out: + TCALL(hw, mac.ops.release_swfw_sync, NGBE_MNG_SWFW_SYNC_SW_MB); + return status; +} + +/** + * ngbe_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 NGBE_ERR_SWFW_SYNC when encountering an error acquiring + * semaphore or NGBE_ERR_HOST_INTERFACE_COMMAND when command fails. + **/ +s32 ngbe_set_fw_drv_ver(struct ngbe_hw *hw, u8 maj, u8 min, + u8 build, u8 sub) +{ + struct ngbe_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 = ngbe_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 = ngbe_host_interface_command(hw, (u32 *)&fw_cmd, + sizeof(fw_cmd), + NGBE_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 = NGBE_ERR_HOST_INTERFACE_COMMAND; + + break; + } + + return ret_val; +} + +/** + * ngbe_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 NGBE_ERR_SWFW_SYNC when encountering an error acquiring + * semaphore or NGBE_ERR_HOST_INTERFACE_COMMAND when command fails. + **/ +s32 ngbe_reset_hostif(struct ngbe_hw *hw) +{ + struct ngbe_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 = ngbe_calculate_checksum((u8 *)&reset_cmd, + (FW_CEM_HDR_LEN + reset_cmd.hdr.buf_len)); + + /* send reset request to FW and wait for response */ + for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) { + status = ngbe_host_interface_command(hw, (u32 *)&reset_cmd, + sizeof(reset_cmd), + NGBE_HI_COMMAND_TIMEOUT, + true); + msleep(1); + if (status != 0) + continue; + + if (reset_cmd.hdr.cmd_or_resp.ret_status == + FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else + status = NGBE_ERR_HOST_INTERFACE_COMMAND; + + break; + } + + return status; +} + +s32 ngbe_setup_mac_link_hostif(struct ngbe_hw *hw, u32 speed) +{ + struct ngbe_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 = ngbe_calculate_checksum((u8 *)&cmd, + (FW_CEM_HDR_LEN + cmd.hdr.buf_len)); + + for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) { + status = ngbe_host_interface_command(hw, (u32 *)&cmd, + sizeof(cmd), + NGBE_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 = NGBE_ERR_HOST_INTERFACE_COMMAND; + + break; + } + + return status; +} + +u16 ngbe_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 ngbe_upgrade_flash_hostif(struct ngbe_hw *hw, u32 region, + const u8 *data, u32 size) +{ + struct ngbe_hic_upg_start start_cmd; + struct ngbe_hic_upg_write write_cmd; + struct ngbe_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 = ngbe_calculate_checksum((u8 *)&start_cmd, + (FW_CEM_HDR_LEN + start_cmd.hdr.buf_len)); + start_cmd.pad2 = 0; + start_cmd.pad3 = 0; + + status = ngbe_host_interface_command(hw, (u32 *)&start_cmd, + sizeof(start_cmd), + NGBE_HI_FLASH_ERASE_TIMEOUT, + true); + + if (start_cmd.hdr.cmd_or_resp.ret_status == FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else { + status = NGBE_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 = ngbe_crc16_ccitt((u8 *)write_cmd.data, + write_cmd.data_len * 4); + + status = ngbe_host_interface_command(hw, (u32 *)&write_cmd, + sizeof(write_cmd), + NGBE_HI_FLASH_UPDATE_TIMEOUT, + true); + if (start_cmd.hdr.cmd_or_resp.ret_status == + FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else { + status = NGBE_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 NGBE_MODULE_EEPROM: + verify_cmd.action_flag = NGBE_RELOAD_EEPROM; + break; + case NGBE_MODULE_FIRMWARE: + verify_cmd.action_flag = NGBE_RESET_FIRMWARE; + break; + case NGBE_MODULE_HARDWARE: + verify_cmd.action_flag = NGBE_RESET_LAN; + break; + default: + ERROR_REPORT1(NGBE_ERROR_ARGUMENT, + "ngbe_upgrade_flash_hostif: region err %x\n", region); + return status; + } + + verify_cmd.hdr.checksum = ngbe_calculate_checksum((u8 *)&verify_cmd, + (FW_CEM_HDR_LEN + verify_cmd.hdr.buf_len)); + + status = ngbe_host_interface_command(hw, (u32 *)&verify_cmd, + sizeof(verify_cmd), + NGBE_HI_FLASH_VERIFY_TIMEOUT, + true); + + if (verify_cmd.hdr.cmd_or_resp.ret_status == FW_CEM_RESP_STATUS_SUCCESS) + status = 0; + else { + status = NGBE_ERR_HOST_INTERFACE_COMMAND; + } + return status; +} + +/* cmd_addr is used for some special command: +** 1. to be sector address, when implemented erase sector command +** 2. to be flash address when implemented read, write flash address +*/ +u8 fmgr_cmd_op(struct ngbe_hw *hw, u32 cmd, u32 cmd_addr) +{ + u32 cmd_val = 0; + u32 time_out = 0; + + cmd_val = (cmd << SPI_CLK_CMD_OFFSET) | (SPI_CLK_DIV << SPI_CLK_DIV_OFFSET) | cmd_addr; + wr32(hw, SPI_H_CMD_REG_ADDR, cmd_val); + while (1) { + if (rd32(hw, SPI_H_STA_REG_ADDR) & 0x1) + break; + + if (time_out == SPI_TIME_OUT_VALUE) + return 1; + + time_out = time_out + 1; + udelay(10); + } + + return 0; +} + +u8 fmgr_usr_cmd_op(struct ngbe_hw *hw, u32 usr_cmd) +{ + u8 status = 0; + + wr32(hw, SPI_H_USR_CMD_REG_ADDR, usr_cmd); + status = fmgr_cmd_op(hw, SPI_CMD_USER_CMD, 0); + + return status; +} + +u8 flash_erase_chip(struct ngbe_hw *hw) +{ + u8 status = fmgr_cmd_op(hw, SPI_CMD_ERASE_CHIP, 0); + return status; +} + +u8 flash_erase_sector(struct ngbe_hw *hw, u32 sec_addr) +{ + u8 status = fmgr_cmd_op(hw, SPI_CMD_ERASE_SECTOR, sec_addr); + return status; +} + +u32 flash_read_dword(struct ngbe_hw *hw, u32 addr) +{ + u8 status = fmgr_cmd_op(hw, SPI_CMD_READ_DWORD, addr); + if (status) + return (u32)status; + + return rd32(hw, SPI_H_DAT_REG_ADDR); +} + +u8 flash_write_dword(struct ngbe_hw *hw, u32 addr, u32 dword) +{ + u8 status = 0; + + wr32(hw, SPI_H_DAT_REG_ADDR, dword); + status = fmgr_cmd_op(hw, SPI_CMD_WRITE_DWORD, addr); + if (status) + return status; + + if (dword != flash_read_dword(hw, addr)) { + return 1; + } + + return 0; +} + +int ngbe_flash_write_cab(struct ngbe_hw *hw, u32 addr, u32 value, u16 lan_id) +{ + int status; + struct ngbe_hic_read_cab buffer; + + buffer.hdr.req.cmd = 0xE2; + buffer.hdr.req.buf_lenh = 0x6; + buffer.hdr.req.buf_lenl = 0x0; + buffer.hdr.req.checksum = 0xFF; + + /* convert offset from words to bytes */ + buffer.dbuf.d16[0] = cpu_to_le16(lan_id); + /* one word */ + buffer.dbuf.d32[0] = htonl(addr); + buffer.dbuf.d32[1] = htonl(value); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), 5000, true); + printk("0x1e100 :%08x\n", rd32(hw, 0x1e100)); + printk("0x1e104 :%08x\n", rd32(hw, 0x1e104)); + printk("0x1e108 :%08x\n", rd32(hw, 0x1e108)); + printk("0x1e10c :%08x\n", rd32(hw, 0x1e10c)); + + return status; +} + +int ngbe_flash_read_cab(struct ngbe_hw *hw, u32 addr, u16 lan_id) +{ + int status; + struct ngbe_hic_read_cab buffer; + u16 *data = NULL; + + buffer.hdr.req.cmd = 0xE1; + buffer.hdr.req.buf_lenh = 0xaa; + buffer.hdr.req.buf_lenl = 0; + buffer.hdr.req.checksum = 0xFF; + + /* convert offset from words to bytes */ + buffer.dbuf.d16[0] = cpu_to_le16(lan_id); + /* one word */ + buffer.dbuf.d32[0] = htonl(addr); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), 5000, true); + + if (status) + return status; + if (ngbe_check_mng_access(hw)) { + *data = (u16)rd32a(hw, 0x1e100, 3); + printk("0x1e100 :%08x\n", rd32(hw, 0x1e100)); + printk("0x1e104 :%08x\n", rd32(hw, 0x1e104)); + printk("0x1e108 :%08x\n", rd32(hw, 0x1e108)); + printk("0x1e10c :%08x\n", rd32(hw, 0x1e10c)); + } else { + status = -147; + return status; + } + + return rd32(hw, 0x1e108); +} + +int ngbe_flash_write_unlock(struct ngbe_hw *hw) +{ + int status; + struct ngbe_hic_read_shadow_ram buffer; + + buffer.hdr.req.cmd = 0x40; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = 0; + buffer.hdr.req.checksum = 0xFF; + + /* convert offset from words to bytes */ + buffer.address = 0; + /* one word */ + buffer.length = 0; + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), 5000, false); + if (status) + return status; + + return status; +} + +int ngbe_flash_write_lock(struct ngbe_hw *hw) +{ + int status; + struct ngbe_hic_read_shadow_ram buffer; + + buffer.hdr.req.cmd = 0x39; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = 0; + buffer.hdr.req.checksum = 0xFF; + + /* convert offset from words to bytes */ + buffer.address = 0; + /* one word */ + buffer.length = 0; + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), 5000, false); + if (status) + return status; + + return status; +} + +int ngbe_upgrade_flash(struct ngbe_hw *hw, u32 region, + const u8 *data, u32 size) +{ + u32 sector_num = 0; + u32 read_data = 0; + u8 status = 0; + u8 skip = 0; + u32 i = 0, k = 0, n = 0; + u8 flash_vendor = 0; + u32 num[256] = {0}; + u32 mac_addr0_dword0_t, mac_addr0_dword1_t; + u32 mac_addr1_dword0_t, mac_addr1_dword1_t; + u32 mac_addr2_dword0_t, mac_addr2_dword1_t; + u32 mac_addr3_dword0_t, mac_addr3_dword1_t; + u32 serial_num_dword0_t, serial_num_dword1_t, serial_num_dword2_t; + + /*check sub_id*/; + printk("Checking sub_id .......\n"); + printk("The card's sub_id : %04x\n", hw->subsystem_device_id); + printk("The image's sub_id : %04x\n", data[0xfffdc] << 8 | data[0xfffdd]); + if ((hw->subsystem_device_id & 0xffff) == + ((data[0xfffdc] << 8 | data[0xfffdd]) & 0xffff)) { + printk("It is a right image\n"); + } else if (hw->subsystem_device_id == 0xffff) { + printk("update anyway\n"); + } else { + printk("====The Gigabit image do not match the Gigabit card====\n"); + printk("====Please check your image====\n"); + return -EOPNOTSUPP; + } + + /*check dev_id*/ + printk("Checking dev_id .......\n"); + printk("The image's dev_id : %04x\n", data[0xfffde] << 8 | data[0xfffdf]); + printk("The card's dev_id : %04x\n", hw->device_id); + if (!((hw->device_id & 0xffff) == + ((data[0xfffde] << 8 | data[0xfffdf]) & 0xffff)) + && !(hw->device_id == 0xffff)) { + printk("====The Gigabit image is not match the Gigabit card====\n"); + printk("====Please check your image====\n"); + return -EOPNOTSUPP; + } + + // unlock flash write protect + ngbe_release_eeprom_semaphore(hw); + ngbe_flash_write_unlock(hw); + + wr32(hw, 0x10114, 0x9f050206); + wr32(hw, 0x10194, 0x9f050206); + + ngbe_flash_write_cab(hw, 0x188, 0, 0); + ngbe_flash_write_cab(hw, 0x184, 0x60000000, 0); + msleep(1000); + + mac_addr0_dword0_t = flash_read_dword(hw, MAC_ADDR0_WORD0_OFFSET_1G); + mac_addr0_dword1_t = flash_read_dword(hw, MAC_ADDR0_WORD1_OFFSET_1G) & 0xffff; + mac_addr1_dword0_t = flash_read_dword(hw, MAC_ADDR1_WORD0_OFFSET_1G); + mac_addr1_dword1_t = flash_read_dword(hw, MAC_ADDR1_WORD1_OFFSET_1G) & 0xffff; + mac_addr2_dword0_t = flash_read_dword(hw, MAC_ADDR2_WORD0_OFFSET_1G); + mac_addr2_dword1_t = flash_read_dword(hw, MAC_ADDR2_WORD1_OFFSET_1G) & 0xffff; + mac_addr3_dword0_t = flash_read_dword(hw, MAC_ADDR3_WORD0_OFFSET_1G); + mac_addr3_dword1_t = flash_read_dword(hw, MAC_ADDR3_WORD1_OFFSET_1G) & 0xffff; + + serial_num_dword0_t = flash_read_dword(hw, PRODUCT_SERIAL_NUM_OFFSET_1G); + serial_num_dword1_t = flash_read_dword(hw, PRODUCT_SERIAL_NUM_OFFSET_1G + 4); + serial_num_dword2_t = flash_read_dword(hw, PRODUCT_SERIAL_NUM_OFFSET_1G + 8); + printk("Old: MAC Address0 is: 0x%04x%08x\n", mac_addr0_dword1_t, + mac_addr0_dword0_t); + printk(" MAC Address1 is: 0x%04x%08x\n", mac_addr1_dword1_t, + mac_addr1_dword0_t); + printk(" MAC Address2 is: 0x%04x%08x\n", mac_addr2_dword1_t, + mac_addr2_dword0_t); + printk(" MAC Address3 is: 0x%04x%08x\n", mac_addr3_dword1_t, + mac_addr3_dword0_t); + + for (k = 0; k < (1024 / 4); k++) { + num[k] = flash_read_dword(hw, 0xfe000 + k * 4); + } + + status = fmgr_usr_cmd_op(hw, 0x6); // write enable + status = fmgr_usr_cmd_op(hw, 0x98); // global protection un-lock + msleep(1000); // 1s + + // Note: for Spanish FLASH, first 8 sectors (4KB) in sector0 (64KB) need to use + // a special erase command (4K sector erase) + if (flash_vendor == 1) { + wr32(hw, SPI_CMD_CFG1_ADDR, 0x0103c720); + for (i = 0; i < 8; i++) { + flash_erase_sector(hw, i*128); + msleep(20); // 20 ms + } + wr32(hw, SPI_CMD_CFG1_ADDR, 0x0103c7d8); + } + + /* Winbond Flash, erase chip command is okay, but erase sector doestn't work*/ + sector_num = size / SPI_SECTOR_SIZE; + if (flash_vendor == 2) { + status = flash_erase_chip(hw); + printk("Erase chip command, return status = %0d\n", status); + msleep(1000); // 1 s + } else { + wr32(hw, SPI_CMD_CFG1_ADDR, 0x0103c720); + for (i = 0; i < sector_num; i++) { + status = flash_erase_sector(hw, i * SPI_SECTOR_SIZE); + printk("Erase sector[%2d] command, return status = %0d\n", i, status); + msleep(50); // 50 ms + } + wr32(hw, SPI_CMD_CFG1_ADDR, 0x0103c7d8); + } + + // Program Image file in dword + for (i = 0; i < size / 4; i++) { + read_data = data[4 * i + 3] << 24 | data[4 * i + 2] << 16 | + data[4 * i + 1] << 8 | data[4 * i]; + read_data = __le32_to_cpu(read_data); + skip = ((i * 4 == MAC_ADDR0_WORD0_OFFSET_1G) || + (i * 4 == MAC_ADDR0_WORD1_OFFSET_1G) || + (i * 4 == MAC_ADDR1_WORD0_OFFSET_1G) || + (i * 4 == MAC_ADDR1_WORD1_OFFSET_1G) || + (i * 4 == MAC_ADDR2_WORD0_OFFSET_1G) || + (i * 4 == MAC_ADDR2_WORD1_OFFSET_1G) || + (i * 4 == MAC_ADDR3_WORD0_OFFSET_1G) || + (i * 4 == MAC_ADDR3_WORD1_OFFSET_1G) || + (i * 4 >= PRODUCT_SERIAL_NUM_OFFSET_1G && + i * 4 <= PRODUCT_SERIAL_NUM_OFFSET_1G + 8)); + if (read_data != 0xffffffff && !skip) { + status = flash_write_dword(hw, i * 4, read_data); + if (status) { + printk("ERROR: Program 0x%08x @addr: 0x%08x is failed !!\n", + read_data, i * 4); + read_data = flash_read_dword(hw, i * 4); + printk(" Read data from Flash is: 0x%08x\n", read_data); + return 1; + } + } + if (i % 1024 == 0) { + printk("\b\b\b\b%3d%%", (int)(i * 4 * 100 / size)); + } + } + + flash_write_dword(hw, MAC_ADDR0_WORD0_OFFSET_1G, + mac_addr0_dword0_t); + flash_write_dword(hw, MAC_ADDR0_WORD1_OFFSET_1G, + (mac_addr0_dword1_t | 0x80000000));//lan0 + flash_write_dword(hw, MAC_ADDR1_WORD0_OFFSET_1G, + mac_addr1_dword0_t); + flash_write_dword(hw, MAC_ADDR1_WORD1_OFFSET_1G, + (mac_addr1_dword1_t | 0x80000000));//lan1 + flash_write_dword(hw, MAC_ADDR2_WORD0_OFFSET_1G, + mac_addr2_dword0_t); + flash_write_dword(hw, MAC_ADDR2_WORD1_OFFSET_1G, + (mac_addr2_dword1_t | 0x80000000));//lan2 + flash_write_dword(hw, MAC_ADDR3_WORD0_OFFSET_1G, + mac_addr3_dword0_t); + flash_write_dword(hw, MAC_ADDR3_WORD1_OFFSET_1G, + (mac_addr3_dword1_t | 0x80000000));//lan3 + flash_write_dword(hw, PRODUCT_SERIAL_NUM_OFFSET_1G, serial_num_dword0_t); + flash_write_dword(hw, PRODUCT_SERIAL_NUM_OFFSET_1G+4, serial_num_dword1_t); + flash_write_dword(hw, PRODUCT_SERIAL_NUM_OFFSET_1G+8, serial_num_dword2_t); + + for (n = 0; n < 1024/4; n++) { + if (!(num[n] == 0xffffffff)) + flash_write_dword(hw, 0xfe000 + n * 4, num[n]); + } + + return 0; +} + +/** + * ngbe_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 ngbe_set_rxpba(struct ngbe_hw *hw, int num_pb, u32 headroom, + int strategy) +{ + u32 pbsize = hw->mac.rx_pb_size; + 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_EQUAL: + rxpktsize = (pbsize / num_pb) << NGBE_RDB_PB_SZ_SHIFT; + wr32(hw, NGBE_RDB_PB_SZ, rxpktsize); + break; + default: + break; + } + + /* Only support an equally distributed Tx packet buffer strategy. */ + txpktsize = NGBE_TDB_PB_SZ_MAX / num_pb; + txpbthresh = (txpktsize / NGBE_KB_TO_B) - NGBE_TXPKT_SIZE_MAX; + + wr32(hw, NGBE_TDB_PB_SZ, txpktsize); + wr32(hw, NGBE_TDM_PB_THRE, txpbthresh); +} + +STATIC const u8 ngbe_emc_temp_data[4] = { + NGBE_EMC_INTERNAL_DATA, + NGBE_EMC_DIODE1_DATA, + NGBE_EMC_DIODE2_DATA, + NGBE_EMC_DIODE3_DATA +}; + +STATIC const u8 ngbe_emc_therm_limit[4] = { + NGBE_EMC_INTERNAL_THERM_LIMIT, + NGBE_EMC_DIODE1_THERM_LIMIT, + NGBE_EMC_DIODE2_THERM_LIMIT, + NGBE_EMC_DIODE3_THERM_LIMIT +}; + +/** + * ngbe_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 ngbe_get_thermal_sensor_data(struct ngbe_hw *hw) +{ + s64 tsv; + struct ngbe_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 NGBE_NOT_IMPLEMENTED; + + tsv = (s64)(rd32(hw, NGBE_TS_ST) & + NGBE_TS_ST_DATA_OUT_MASK); + /* 216 < tsv < 876 */ + + tsv = tsv < 876 ? tsv : 876; + tsv = tsv - 216; + tsv = tsv/4; + tsv = tsv - 40; + data->sensor.temp = (s16)tsv; + + return 0; +} + +/** + * ngbe_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 ngbe_init_thermal_sensor_thresh(struct ngbe_hw *hw) +{ + s32 status = 0; + + struct ngbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; + + DEBUGFUNC("\n"); + + memset(data, 0, sizeof(struct ngbe_thermal_sensor_data)); + + /* Only support thermal sensors attached to SP physical port 0 */ + if (hw->bus.lan_id) + return NGBE_NOT_IMPLEMENTED; + + wr32(hw, NGBE_TS_INT_EN, NGBE_TS_INT_EN_DALARM_INT_EN | NGBE_TS_INT_EN_ALARM_INT_EN); + + wr32(hw, NGBE_TS_EN, NGBE_TS_EN_ENA); + + data->sensor.alarm_thresh = 115; + wr32(hw, NGBE_TS_ALARM_THRE, 0x344);/* magic num */ + data->sensor.dalarm_thresh = 110; + wr32(hw, NGBE_TS_DALARM_THRE, 0x330);/* magic num */ + + return status; +} + +void ngbe_disable_rx(struct ngbe_hw *hw) +{ + u32 pfdtxgswc; + u32 rxctrl; + + DEBUGFUNC("\n"); + + rxctrl = rd32(hw, NGBE_RDB_PB_CTL); + if (rxctrl & NGBE_RDB_PB_CTL_PBEN) { + pfdtxgswc = rd32(hw, NGBE_PSR_CTL); + if (pfdtxgswc & NGBE_PSR_CTL_SW_EN) { + pfdtxgswc &= ~NGBE_PSR_CTL_SW_EN; + wr32(hw, NGBE_PSR_CTL, pfdtxgswc); + hw->mac.set_lben = true; + } else { + hw->mac.set_lben = false; + } + rxctrl &= ~NGBE_RDB_PB_CTL_PBEN; + wr32(hw, NGBE_RDB_PB_CTL, rxctrl); + + /*OCP NCSI BMC need it*/ + if (!(((hw->subsystem_device_id & OEM_MASK) == OCP_CARD) || + ((hw->subsystem_device_id & WOL_SUP_MASK) == WOL_SUP) || + ((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP))) { + /* disable mac receiver */ + wr32m(hw, NGBE_MAC_RX_CFG, + NGBE_MAC_RX_CFG_RE, 0); + } + } +} + + +void ngbe_enable_rx(struct ngbe_hw *hw) +{ + u32 pfdtxgswc; + + DEBUGFUNC("\n"); + + /* enable mac receiver */ + wr32m(hw, NGBE_MAC_RX_CFG, + NGBE_MAC_RX_CFG_RE, NGBE_MAC_RX_CFG_RE); + + wr32m(hw, NGBE_RSEC_CTL, + 0x2, 0); + + wr32m(hw, NGBE_RDB_PB_CTL, + NGBE_RDB_PB_CTL_PBEN, NGBE_RDB_PB_CTL_PBEN); + + if (hw->mac.set_lben) { + pfdtxgswc = rd32(hw, NGBE_PSR_CTL); + pfdtxgswc |= NGBE_PSR_CTL_SW_EN; + wr32(hw, NGBE_PSR_CTL, pfdtxgswc); + hw->mac.set_lben = false; + } +} + +/** + * ngbe_mng_present - returns true when manangbeent capability is present + * @hw: pointer to hardware structure + */ +bool ngbe_mng_present(struct ngbe_hw *hw) +{ + u32 fwsm; + + fwsm = rd32(hw, NGBE_MIS_ST); + return fwsm & NGBE_MIS_ST_MNG_INIT_DN; +} + +bool ngbe_check_mng_access(struct ngbe_hw *hw) +{ + if (!ngbe_mng_present(hw)) + return false; + return true; +} + +int ngbe_check_flash_load(struct ngbe_hw *hw, u32 check_bit) +{ + u32 i = 0; + u32 reg = 0; + int err = 0; + /* if there's flash existing */ + if (!(rd32(hw, NGBE_SPI_STATUS) & + NGBE_SPI_STATUS_FLASH_BYPASS)) { + /* wait hw load flash done */ + for (i = 0; i < NGBE_MAX_FLASH_LOAD_POLL_TIME; i++) { + reg = rd32(hw, NGBE_SPI_ILDR_STATUS); + if (!(reg & check_bit)) { + /* done */ + break; + } + msleep(200); + } + if (i == NGBE_MAX_FLASH_LOAD_POLL_TIME) { + err = NGBE_ERR_FLASH_LOADING_FAILED; + ERROR_REPORT1(NGBE_ERROR_POLLING, + "HW Loading Flash failed: %d\n", err); + } + } + return err; +} + +/* The ngbe_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 ngbe_ptype_lookup[ptype].known + * THEN + * Packet is unknown + * ELSE IF ngbe_ptype_lookup[ptype].mac == NGBE_DEC_PTYPE_MAC_IP + * Use the rest of the fields to look at the tunnels, inner protocols, etc + * ELSE + * Use the enum ngbe_l2_ptypes to decode the packet type + * ENDIF + */ + +/* macro to make the table lines short */ +#define NGBE_PTT(ptype, mac, ip, etype, eip, proto, layer)\ + { ptype, \ + 1, \ + /* mac */ NGBE_DEC_PTYPE_MAC_##mac, \ + /* ip */ NGBE_DEC_PTYPE_IP_##ip, \ + /* etype */ NGBE_DEC_PTYPE_ETYPE_##etype, \ + /* eip */ NGBE_DEC_PTYPE_IP_##eip, \ + /* proto */ NGBE_DEC_PTYPE_PROT_##proto, \ + /* layer */ NGBE_DEC_PTYPE_LAYER_##layer } + +#define NGBE_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 */ +ngbe_dptype ngbe_ptype_lookup[256] = { + NGBE_UKN(0x00), + NGBE_UKN(0x01), + NGBE_UKN(0x02), + NGBE_UKN(0x03), + NGBE_UKN(0x04), + NGBE_UKN(0x05), + NGBE_UKN(0x06), + NGBE_UKN(0x07), + NGBE_UKN(0x08), + NGBE_UKN(0x09), + NGBE_UKN(0x0A), + NGBE_UKN(0x0B), + NGBE_UKN(0x0C), + NGBE_UKN(0x0D), + NGBE_UKN(0x0E), + NGBE_UKN(0x0F), + + /* L2: mac */ + NGBE_UKN(0x10), + NGBE_PTT(0x11, L2, NONE, NONE, NONE, NONE, PAY2), + NGBE_PTT(0x12, L2, NONE, NONE, NONE, TS, PAY2), + NGBE_PTT(0x13, L2, NONE, NONE, NONE, NONE, PAY2), + NGBE_PTT(0x14, L2, NONE, NONE, NONE, NONE, PAY2), + NGBE_PTT(0x15, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x16, L2, NONE, NONE, NONE, NONE, PAY2), + NGBE_PTT(0x17, L2, NONE, NONE, NONE, NONE, NONE), + + /* L2: ethertype filter */ + NGBE_PTT(0x18, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x19, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x1A, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x1B, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x1C, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x1D, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x1E, L2, NONE, NONE, NONE, NONE, NONE), + NGBE_PTT(0x1F, L2, NONE, NONE, NONE, NONE, NONE), + + /* L3: ip non-tunnel */ + NGBE_UKN(0x20), + NGBE_PTT(0x21, IP, FGV4, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x22, IP, IPV4, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x23, IP, IPV4, NONE, NONE, UDP, PAY4), + NGBE_PTT(0x24, IP, IPV4, NONE, NONE, TCP, PAY4), + NGBE_PTT(0x25, IP, IPV4, NONE, NONE, SCTP, PAY4), + NGBE_UKN(0x26), + NGBE_UKN(0x27), + NGBE_UKN(0x28), + NGBE_PTT(0x29, IP, FGV6, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x2A, IP, IPV6, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x2B, IP, IPV6, NONE, NONE, UDP, PAY3), + NGBE_PTT(0x2C, IP, IPV6, NONE, NONE, TCP, PAY4), + NGBE_PTT(0x2D, IP, IPV6, NONE, NONE, SCTP, PAY4), + NGBE_UKN(0x2E), + NGBE_UKN(0x2F), + + /* L2: fcoe */ + NGBE_PTT(0x30, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x31, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x32, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x33, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x34, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_UKN(0x35), + NGBE_UKN(0x36), + NGBE_UKN(0x37), + NGBE_PTT(0x38, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x39, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x3A, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x3B, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_PTT(0x3C, FCOE, NONE, NONE, NONE, NONE, PAY3), + NGBE_UKN(0x3D), + NGBE_UKN(0x3E), + NGBE_UKN(0x3F), + + NGBE_UKN(0x40), + NGBE_UKN(0x41), + NGBE_UKN(0x42), + NGBE_UKN(0x43), + NGBE_UKN(0x44), + NGBE_UKN(0x45), + NGBE_UKN(0x46), + NGBE_UKN(0x47), + NGBE_UKN(0x48), + NGBE_UKN(0x49), + NGBE_UKN(0x4A), + NGBE_UKN(0x4B), + NGBE_UKN(0x4C), + NGBE_UKN(0x4D), + NGBE_UKN(0x4E), + NGBE_UKN(0x4F), + NGBE_UKN(0x50), + NGBE_UKN(0x51), + NGBE_UKN(0x52), + NGBE_UKN(0x53), + NGBE_UKN(0x54), + NGBE_UKN(0x55), + NGBE_UKN(0x56), + NGBE_UKN(0x57), + NGBE_UKN(0x58), + NGBE_UKN(0x59), + NGBE_UKN(0x5A), + NGBE_UKN(0x5B), + NGBE_UKN(0x5C), + NGBE_UKN(0x5D), + NGBE_UKN(0x5E), + NGBE_UKN(0x5F), + NGBE_UKN(0x60), + NGBE_UKN(0x61), + NGBE_UKN(0x62), + NGBE_UKN(0x63), + NGBE_UKN(0x64), + NGBE_UKN(0x65), + NGBE_UKN(0x66), + NGBE_UKN(0x67), + NGBE_UKN(0x68), + NGBE_UKN(0x69), + NGBE_UKN(0x6A), + NGBE_UKN(0x6B), + NGBE_UKN(0x6C), + NGBE_UKN(0x6D), + NGBE_UKN(0x6E), + NGBE_UKN(0x6F), + NGBE_UKN(0x70), + NGBE_UKN(0x71), + NGBE_UKN(0x72), + NGBE_UKN(0x73), + NGBE_UKN(0x74), + NGBE_UKN(0x75), + NGBE_UKN(0x76), + NGBE_UKN(0x77), + NGBE_UKN(0x78), + NGBE_UKN(0x79), + NGBE_UKN(0x7A), + NGBE_UKN(0x7B), + NGBE_UKN(0x7C), + NGBE_UKN(0x7D), + NGBE_UKN(0x7E), + NGBE_UKN(0x7F), + + /* IPv4 --> IPv4/IPv6 */ + NGBE_UKN(0x80), + NGBE_PTT(0x81, IP, IPV4, IPIP, FGV4, NONE, PAY3), + NGBE_PTT(0x82, IP, IPV4, IPIP, IPV4, NONE, PAY3), + NGBE_PTT(0x83, IP, IPV4, IPIP, IPV4, UDP, PAY4), + NGBE_PTT(0x84, IP, IPV4, IPIP, IPV4, TCP, PAY4), + NGBE_PTT(0x85, IP, IPV4, IPIP, IPV4, SCTP, PAY4), + NGBE_UKN(0x86), + NGBE_UKN(0x87), + NGBE_UKN(0x88), + NGBE_PTT(0x89, IP, IPV4, IPIP, FGV6, NONE, PAY3), + NGBE_PTT(0x8A, IP, IPV4, IPIP, IPV6, NONE, PAY3), + NGBE_PTT(0x8B, IP, IPV4, IPIP, IPV6, UDP, PAY4), + NGBE_PTT(0x8C, IP, IPV4, IPIP, IPV6, TCP, PAY4), + NGBE_PTT(0x8D, IP, IPV4, IPIP, IPV6, SCTP, PAY4), + NGBE_UKN(0x8E), + NGBE_UKN(0x8F), + + /* IPv4 --> GRE/NAT --> NONE/IPv4/IPv6 */ + NGBE_PTT(0x90, IP, IPV4, IG, NONE, NONE, PAY3), + NGBE_PTT(0x91, IP, IPV4, IG, FGV4, NONE, PAY3), + NGBE_PTT(0x92, IP, IPV4, IG, IPV4, NONE, PAY3), + NGBE_PTT(0x93, IP, IPV4, IG, IPV4, UDP, PAY4), + NGBE_PTT(0x94, IP, IPV4, IG, IPV4, TCP, PAY4), + NGBE_PTT(0x95, IP, IPV4, IG, IPV4, SCTP, PAY4), + NGBE_UKN(0x96), + NGBE_UKN(0x97), + NGBE_UKN(0x98), + NGBE_PTT(0x99, IP, IPV4, IG, FGV6, NONE, PAY3), + NGBE_PTT(0x9A, IP, IPV4, IG, IPV6, NONE, PAY3), + NGBE_PTT(0x9B, IP, IPV4, IG, IPV6, UDP, PAY4), + NGBE_PTT(0x9C, IP, IPV4, IG, IPV6, TCP, PAY4), + NGBE_PTT(0x9D, IP, IPV4, IG, IPV6, SCTP, PAY4), + NGBE_UKN(0x9E), + NGBE_UKN(0x9F), + + /* IPv4 --> GRE/NAT --> MAC --> NONE/IPv4/IPv6 */ + NGBE_PTT(0xA0, IP, IPV4, IGM, NONE, NONE, PAY3), + NGBE_PTT(0xA1, IP, IPV4, IGM, FGV4, NONE, PAY3), + NGBE_PTT(0xA2, IP, IPV4, IGM, IPV4, NONE, PAY3), + NGBE_PTT(0xA3, IP, IPV4, IGM, IPV4, UDP, PAY4), + NGBE_PTT(0xA4, IP, IPV4, IGM, IPV4, TCP, PAY4), + NGBE_PTT(0xA5, IP, IPV4, IGM, IPV4, SCTP, PAY4), + NGBE_UKN(0xA6), + NGBE_UKN(0xA7), + NGBE_UKN(0xA8), + NGBE_PTT(0xA9, IP, IPV4, IGM, FGV6, NONE, PAY3), + NGBE_PTT(0xAA, IP, IPV4, IGM, IPV6, NONE, PAY3), + NGBE_PTT(0xAB, IP, IPV4, IGM, IPV6, UDP, PAY4), + NGBE_PTT(0xAC, IP, IPV4, IGM, IPV6, TCP, PAY4), + NGBE_PTT(0xAD, IP, IPV4, IGM, IPV6, SCTP, PAY4), + NGBE_UKN(0xAE), + NGBE_UKN(0xAF), + + /* IPv4 --> GRE/NAT --> MAC+VLAN --> NONE/IPv4/IPv6 */ + NGBE_PTT(0xB0, IP, IPV4, IGMV, NONE, NONE, PAY3), + NGBE_PTT(0xB1, IP, IPV4, IGMV, FGV4, NONE, PAY3), + NGBE_PTT(0xB2, IP, IPV4, IGMV, IPV4, NONE, PAY3), + NGBE_PTT(0xB3, IP, IPV4, IGMV, IPV4, UDP, PAY4), + NGBE_PTT(0xB4, IP, IPV4, IGMV, IPV4, TCP, PAY4), + NGBE_PTT(0xB5, IP, IPV4, IGMV, IPV4, SCTP, PAY4), + NGBE_UKN(0xB6), + NGBE_UKN(0xB7), + NGBE_UKN(0xB8), + NGBE_PTT(0xB9, IP, IPV4, IGMV, FGV6, NONE, PAY3), + NGBE_PTT(0xBA, IP, IPV4, IGMV, IPV6, NONE, PAY3), + NGBE_PTT(0xBB, IP, IPV4, IGMV, IPV6, UDP, PAY4), + NGBE_PTT(0xBC, IP, IPV4, IGMV, IPV6, TCP, PAY4), + NGBE_PTT(0xBD, IP, IPV4, IGMV, IPV6, SCTP, PAY4), + NGBE_UKN(0xBE), + NGBE_UKN(0xBF), + + /* IPv6 --> IPv4/IPv6 */ + NGBE_UKN(0xC0), + NGBE_PTT(0xC1, IP, IPV6, IPIP, FGV4, NONE, PAY3), + NGBE_PTT(0xC2, IP, IPV6, IPIP, IPV4, NONE, PAY3), + NGBE_PTT(0xC3, IP, IPV6, IPIP, IPV4, UDP, PAY4), + NGBE_PTT(0xC4, IP, IPV6, IPIP, IPV4, TCP, PAY4), + NGBE_PTT(0xC5, IP, IPV6, IPIP, IPV4, SCTP, PAY4), + NGBE_UKN(0xC6), + NGBE_UKN(0xC7), + NGBE_UKN(0xC8), + NGBE_PTT(0xC9, IP, IPV6, IPIP, FGV6, NONE, PAY3), + NGBE_PTT(0xCA, IP, IPV6, IPIP, IPV6, NONE, PAY3), + NGBE_PTT(0xCB, IP, IPV6, IPIP, IPV6, UDP, PAY4), + NGBE_PTT(0xCC, IP, IPV6, IPIP, IPV6, TCP, PAY4), + NGBE_PTT(0xCD, IP, IPV6, IPIP, IPV6, SCTP, PAY4), + NGBE_UKN(0xCE), + NGBE_UKN(0xCF), + + /* IPv6 --> GRE/NAT -> NONE/IPv4/IPv6 */ + NGBE_PTT(0xD0, IP, IPV6, IG, NONE, NONE, PAY3), + NGBE_PTT(0xD1, IP, IPV6, IG, FGV4, NONE, PAY3), + NGBE_PTT(0xD2, IP, IPV6, IG, IPV4, NONE, PAY3), + NGBE_PTT(0xD3, IP, IPV6, IG, IPV4, UDP, PAY4), + NGBE_PTT(0xD4, IP, IPV6, IG, IPV4, TCP, PAY4), + NGBE_PTT(0xD5, IP, IPV6, IG, IPV4, SCTP, PAY4), + NGBE_UKN(0xD6), + NGBE_UKN(0xD7), + NGBE_UKN(0xD8), + NGBE_PTT(0xD9, IP, IPV6, IG, FGV6, NONE, PAY3), + NGBE_PTT(0xDA, IP, IPV6, IG, IPV6, NONE, PAY3), + NGBE_PTT(0xDB, IP, IPV6, IG, IPV6, UDP, PAY4), + NGBE_PTT(0xDC, IP, IPV6, IG, IPV6, TCP, PAY4), + NGBE_PTT(0xDD, IP, IPV6, IG, IPV6, SCTP, PAY4), + NGBE_UKN(0xDE), + NGBE_UKN(0xDF), + + /* IPv6 --> GRE/NAT -> MAC -> NONE/IPv4/IPv6 */ + NGBE_PTT(0xE0, IP, IPV6, IGM, NONE, NONE, PAY3), + NGBE_PTT(0xE1, IP, IPV6, IGM, FGV4, NONE, PAY3), + NGBE_PTT(0xE2, IP, IPV6, IGM, IPV4, NONE, PAY3), + NGBE_PTT(0xE3, IP, IPV6, IGM, IPV4, UDP, PAY4), + NGBE_PTT(0xE4, IP, IPV6, IGM, IPV4, TCP, PAY4), + NGBE_PTT(0xE5, IP, IPV6, IGM, IPV4, SCTP, PAY4), + NGBE_UKN(0xE6), + NGBE_UKN(0xE7), + NGBE_UKN(0xE8), + NGBE_PTT(0xE9, IP, IPV6, IGM, FGV6, NONE, PAY3), + NGBE_PTT(0xEA, IP, IPV6, IGM, IPV6, NONE, PAY3), + NGBE_PTT(0xEB, IP, IPV6, IGM, IPV6, UDP, PAY4), + NGBE_PTT(0xEC, IP, IPV6, IGM, IPV6, TCP, PAY4), + NGBE_PTT(0xED, IP, IPV6, IGM, IPV6, SCTP, PAY4), + NGBE_UKN(0xEE), + NGBE_UKN(0xEF), + + /* IPv6 --> GRE/NAT -> MAC--> NONE/IPv */ + NGBE_PTT(0xF0, IP, IPV6, IGMV, NONE, NONE, PAY3), + NGBE_PTT(0xF1, IP, IPV6, IGMV, FGV4, NONE, PAY3), + NGBE_PTT(0xF2, IP, IPV6, IGMV, IPV4, NONE, PAY3), + NGBE_PTT(0xF3, IP, IPV6, IGMV, IPV4, UDP, PAY4), + NGBE_PTT(0xF4, IP, IPV6, IGMV, IPV4, TCP, PAY4), + NGBE_PTT(0xF5, IP, IPV6, IGMV, IPV4, SCTP, PAY4), + NGBE_UKN(0xF6), + NGBE_UKN(0xF7), + NGBE_UKN(0xF8), + NGBE_PTT(0xF9, IP, IPV6, IGMV, FGV6, NONE, PAY3), + NGBE_PTT(0xFA, IP, IPV6, IGMV, IPV6, NONE, PAY3), + NGBE_PTT(0xFB, IP, IPV6, IGMV, IPV6, UDP, PAY4), + NGBE_PTT(0xFC, IP, IPV6, IGMV, IPV6, TCP, PAY4), + NGBE_PTT(0xFD, IP, IPV6, IGMV, IPV6, SCTP, PAY4), + NGBE_UKN(0xFE), + NGBE_UKN(0xFF), +}; + + +void ngbe_init_mac_link_ops(struct ngbe_hw *hw) +{ + struct ngbe_mac_info *mac = &hw->mac; + + DEBUGFUNC("\n"); + + mac->ops.setup_link = ngbe_setup_mac_link; +} + +/** + * ngbe_init_ops - Inits func ptrs and MAC type + * @hw: pointer to hardware structure + * + * Initialize the function pointers and assign the MAC type for emerald. + * Does not touch the hardware. + **/ + +s32 ngbe_init_ops(struct ngbe_hw *hw) +{ + struct ngbe_mac_info *mac = &hw->mac; + struct ngbe_phy_info *phy = &hw->phy; + + DEBUGFUNC("ngbe_init_ops"); + + ngbe_init_phy_ops_common(hw); + ngbe_init_ops_common(hw); + + if (hw->phy.type == ngbe_phy_m88e1512 || + hw->phy.type == ngbe_phy_m88e1512_sfi) { + phy->ops.read_reg_mdi = ngbe_phy_read_reg_mdi; + phy->ops.write_reg_mdi = ngbe_phy_write_reg_mdi; + phy->ops.setup_link = ngbe_phy_setup_link_m88e1512; + phy->ops.reset = ngbe_phy_reset_m88e1512; + phy->ops.check_event = ngbe_phy_check_event_m88e1512; + phy->ops.get_adv_pause = ngbe_phy_get_advertised_pause_m88e1512; + phy->ops.get_lp_adv_pause = ngbe_phy_get_lp_advertised_pause_m88e1512; + phy->ops.set_adv_pause = ngbe_phy_set_pause_advertisement_m88e1512; + + mac->ops.check_link = ngbe_check_mac_link_mdi; + } else if (hw->phy.type == ngbe_phy_yt8521s_sfi) { + phy->ops.read_reg_mdi = ngbe_phy_read_reg_mdi; + phy->ops.write_reg_mdi = ngbe_phy_write_reg_mdi; + phy->ops.setup_link = ngbe_phy_setup_link_yt8521s; + phy->ops.reset = ngbe_phy_reset_yt8521s; + phy->ops.check_event = ngbe_phy_check_event_yt8521s; + phy->ops.get_adv_pause = ngbe_phy_get_advertised_pause_yt8521s; + phy->ops.get_lp_adv_pause = ngbe_phy_get_lp_advertised_pause_yt8521s; + phy->ops.set_adv_pause = ngbe_phy_set_pause_advertisement_yt8521s; + + mac->ops.check_link = ngbe_check_mac_link_yt8521s; + } + + return NGBE_OK; +} + +/** + * ngbe_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 ngbe_get_link_capabilities(struct ngbe_hw *hw, + u32 *speed, + bool *autoneg) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (hw->device_id == NGBE_DEV_ID_EM_TEST || + hw->device_id == NGBE_DEV_ID_EM_WX1860A2 || + hw->device_id == NGBE_DEV_ID_EM_WX1860A2S || + hw->device_id == NGBE_DEV_ID_EM_WX1860A4 || + hw->device_id == NGBE_DEV_ID_EM_WX1860A4S || + hw->device_id == NGBE_DEV_ID_EM_WX1860AL2 || + hw->device_id == NGBE_DEV_ID_EM_WX1860AL2S || + hw->device_id == NGBE_DEV_ID_EM_WX1860AL4 || + hw->device_id == NGBE_DEV_ID_EM_WX1860AL4S || + hw->device_id == NGBE_DEV_ID_EM_WX1860AL_W || + hw->device_id == NGBE_DEV_ID_EM_WX1860A1 || + hw->device_id == NGBE_DEV_ID_EM_WX1860AL1 || + + hw->device_id == 0x10c || + hw->device_id == NGBE_DEV_ID_EM_WX1860NCSI) { + *speed = NGBE_LINK_SPEED_1GB_FULL | + NGBE_LINK_SPEED_100_FULL | + NGBE_LINK_SPEED_10_FULL; + *autoneg = false; + hw->phy.link_mode = NGBE_PHYSICAL_LAYER_1000BASE_T | + NGBE_PHYSICAL_LAYER_100BASE_TX; + } + + return status; +} + +/** + * ngbe_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 ngbe_get_copper_link_capabilities(struct ngbe_hw *hw, + u32 *speed, + bool *autoneg) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + *speed = 0; + + if (hw->mac.autoneg) + *autoneg = true; + else + *autoneg = false; + + if (status == 0) { + *speed = NGBE_LINK_SPEED_10_FULL | + NGBE_LINK_SPEED_100_FULL | + NGBE_LINK_SPEED_1GB_FULL; + } + + return status; +} + +/** + * ngbe_get_media_type - Get media type + * @hw: pointer to hardware structure + * + * Returns the media type (fiber, copper, backplane) + **/ +enum ngbe_media_type ngbe_get_media_type(struct ngbe_hw *hw) +{ + enum ngbe_media_type media_type; + + DEBUGFUNC("\n"); + + ERROR_REPORT1(NGBE_ERROR_ARGUMENT, + "ngbe_get_media_type: hw->device_id = %u/n", hw->device_id); + + media_type = ngbe_media_type_copper; + + return media_type; +} + +/** + * ngbe_stop_mac_link_on_d3 - Disables link on D3 + * @hw: pointer to hardware structure + * + * Disables link during D3 power down sequence. + * + **/ +void ngbe_stop_mac_link_on_d3(struct ngbe_hw *hw) +{ + UNREFERENCED_PARAMETER(hw); + return; +} + +/** + * ngbe_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 ngbe_setup_mac_link(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + bool autoneg = false; + s32 status = 0; + u32 link_capabilities = NGBE_LINK_SPEED_UNKNOWN; + u32 link_speed = NGBE_LINK_SPEED_UNKNOWN; + u32 lan_speed = 0; + bool link_up = false; + + UNREFERENCED_PARAMETER(autoneg_wait_to_complete); + DEBUGFUNC("\n"); + + if (!(((hw->subsystem_device_id & OEM_MASK) == OCP_CARD) || + ((hw->subsystem_device_id & WOL_SUP_MASK) == WOL_SUP) || + ((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP))) { + /* 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 == NGBE_LINK_SPEED_UNKNOWN) { + status = NGBE_ERR_LINK_SETUP; + goto out; + } + } + + status = TCALL(hw, mac.ops.check_link, + &link_speed, &link_up, false); + if (status != 0) + goto out; + if ((link_speed == speed) && link_up) { + switch (link_speed) { + case NGBE_LINK_SPEED_100_FULL: + lan_speed = 1; + break; + case NGBE_LINK_SPEED_1GB_FULL: + lan_speed = 2; + break; + case NGBE_LINK_SPEED_10_FULL: + lan_speed = 0; + break; + default: + break; + } + wr32m(hw, NGBE_CFG_LAN_SPEED, + 0x3, lan_speed); + } + +out: + return status; +} + + +/** + * ngbe_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 ngbe_setup_copper_link(struct ngbe_hw *hw, + u32 speed, + bool need_restart_AN) +{ + s32 status; + struct ngbe_adapter *adapter = hw->back; + + DEBUGFUNC("\n"); + + /* Setup the PHY according to input speed */ + status = TCALL(hw, phy.ops.setup_link, speed, + need_restart_AN); + + adapter->flags |= NGBE_FLAG_NEED_ANC_CHECK; + + return status; +} + +int ngbe_reset_misc(struct ngbe_hw *hw) +{ + int i; + + /* receive packets that size > 2048 */ + wr32m(hw, NGBE_MAC_RX_CFG, + NGBE_MAC_RX_CFG_JE, NGBE_MAC_RX_CFG_JE); + + /* clear counters on read */ + wr32m(hw, NGBE_MMC_CONTROL, + NGBE_MMC_CONTROL_RSTONRD, NGBE_MMC_CONTROL_RSTONRD); + + wr32m(hw, NGBE_MAC_RX_FLOW_CTRL, + NGBE_MAC_RX_FLOW_CTRL_RFE, NGBE_MAC_RX_FLOW_CTRL_RFE); + + wr32(hw, NGBE_MAC_PKT_FLT, + NGBE_MAC_PKT_FLT_PR); + + wr32m(hw, NGBE_MIS_RST_ST, + NGBE_MIS_RST_ST_RST_INIT, 0x1E00); + + /* errata 4: initialize mng flex tbl and wakeup flex tbl*/ + wr32(hw, NGBE_PSR_MNG_FLEX_SEL, 0); + for (i = 0; i < 16; i++) { + wr32(hw, NGBE_PSR_MNG_FLEX_DW_L(i), 0); + wr32(hw, NGBE_PSR_MNG_FLEX_DW_H(i), 0); + wr32(hw, NGBE_PSR_MNG_FLEX_MSK(i), 0); + } + wr32(hw, NGBE_PSR_LAN_FLEX_SEL, 0); + for (i = 0; i < 16; i++) { + wr32(hw, NGBE_PSR_LAN_FLEX_DW_L(i), 0); + wr32(hw, NGBE_PSR_LAN_FLEX_DW_H(i), 0); + wr32(hw, NGBE_PSR_LAN_FLEX_MSK(i), 0); + } + + /* set pause frame dst mac addr */ + wr32(hw, NGBE_RDB_PFCMACDAL, 0xC2000001); + wr32(hw, NGBE_RDB_PFCMACDAH, 0x0180); + + wr32(hw, NGBE_MDIO_CLAUSE_SELECT, 0xF); + + if (((hw->subsystem_device_id & OEM_MASK) == LY_M88E1512_SFP) || + (hw->subsystem_device_id & OEM_MASK) == LY_YT8521S_SFP) { + /* gpio0 is used to power on/off control*/ + wr32(hw, NGBE_GPIO_DDR, 0x1); + wr32(hw, NGBE_GPIO_DR, NGBE_GPIO_DR_0); + } + + ngbe_init_thermal_sensor_thresh(hw); + + return 0; +} + +/** + * ngbe_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 ngbe_reset_hw(struct ngbe_hw *hw) +{ + s32 status; + u32 reset = 0; + u32 i; + struct ngbe_mac_info *mac = &hw->mac; + + u32 sr_pcs_ctl = 0, sr_pma_mmd_ctl1 = 0, sr_an_mmd_ctl = 0; + u32 sr_an_mmd_adv_reg2 = 0; + u32 vr_xs_or_pcs_mmd_digi_ctl1 = 0, curr_vr_xs_or_pcs_mmd_digi_ctl1 = 0; + u32 curr_sr_pcs_ctl = 0, curr_sr_pma_mmd_ctl1 = 0; + u32 curr_sr_an_mmd_ctl = 0, curr_sr_an_mmd_adv_reg2 = 0; + + u32 reset_status = 0; + u32 rst_delay = 0; + + struct ngbe_adapter *adapter = NULL; + + 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) + goto reset_hw_out; + + if (ngbe_get_media_type(hw) == ngbe_media_type_copper) { + mac->ops.setup_link = ngbe_setup_copper_link; + mac->ops.get_link_capabilities = + ngbe_get_copper_link_capabilities; + } + + /* + * 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, NGBE_MIS_RST_ST) & + NGBE_MIS_RST_ST_RST_INIT) >> + NGBE_MIS_RST_ST_RST_INI_SHIFT; + if (hw->reset_type == NGBE_SW_RESET) { + for (i = 0; i < rst_delay + 20; i++) { + reset_status = + rd32(hw, NGBE_MIS_RST_ST); + if (!(reset_status & + NGBE_MIS_RST_ST_DEV_RST_ST_MASK)) + break; + msleep(100); + } + + if (reset_status & NGBE_MIS_RST_ST_DEV_RST_ST_MASK) { + status = NGBE_ERR_RESET_FAILED; + DEBUGOUT("software reset polling failed to " + "complete.\n"); + goto reset_hw_out; + } + status = ngbe_check_flash_load(hw, + NGBE_SPI_ILDR_STATUS_SW_RESET); + if (status != 0) + goto reset_hw_out; + + } else if (hw->reset_type == NGBE_GLOBAL_RESET) { + adapter = (struct ngbe_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); + } + } else { + + if (hw->bus.lan_id == 0) { + reset = NGBE_MIS_RST_LAN0_RST; + } else if (hw->bus.lan_id == 1) { + reset = NGBE_MIS_RST_LAN1_RST; + } else if (hw->bus.lan_id == 2) { + reset = NGBE_MIS_RST_LAN2_RST; + } else if (hw->bus.lan_id == 3) { + reset = NGBE_MIS_RST_LAN3_RST; + } + + wr32(hw, NGBE_MIS_RST, + reset | rd32(hw, NGBE_MIS_RST)); + NGBE_WRITE_FLUSH(hw); + + msleep(15); + } + + status = ngbe_reset_misc(hw); + if (status != 0) + goto reset_hw_out; + + 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; + } + + /* 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 = NGBE_SP_RAR_ENTRIES; + TCALL(hw, mac.ops.init_rx_addrs); + + pci_set_master(((struct ngbe_adapter *)hw->back)->pdev); + +reset_hw_out: + return status; +} + +/* + * These defines allow us to quickly generate all of the necessary instructions + * in the function below by simply calling out NGBE_COMPUTE_SIG_HASH_ITERATION + * for values 0 through 15 + */ +#define NGBE_ATR_COMMON_HASH_KEY \ + (NGBE_ATR_BUCKET_HASH_KEY & NGBE_ATR_SIGNATURE_HASH_KEY) +#define NGBE_COMPUTE_SIG_HASH_ITERATION(_n) \ +do { \ + u32 n = (_n); \ + if (NGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \ + common_hash ^= lo_hash_dword >> n; \ + else if (NGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \ + bucket_hash ^= lo_hash_dword >> n; \ + else if (NGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \ + sig_hash ^= lo_hash_dword << (16 - n); \ + if (NGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \ + common_hash ^= hi_hash_dword >> n; \ + else if (NGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ + bucket_hash ^= hi_hash_dword >> n; \ + else if (NGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \ + sig_hash ^= hi_hash_dword << (16 - n); \ +} while (0) + +#define NGBE_COMPUTE_BKT_HASH_ITERATION(_n) \ +do { \ + u32 n = (_n); \ + if (NGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \ + bucket_hash ^= lo_hash_dword >> n; \ + if (NGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ + bucket_hash ^= hi_hash_dword >> n; \ +} while (0) + +/* + * 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 NGBE_STORE_AS_BE32(_value) \ + (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \ + (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24)) + +#define NGBE_WRITE_REG_BE32(a, reg, value) \ + wr32((a), (reg), NGBE_STORE_AS_BE32(NGBE_NTOHL(value))) + +#define NGBE_STORE_AS_BE16(_value) \ + NGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8)) + +/** + * ngbe_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 ngbe_start_hw(struct ngbe_hw *hw) +{ + int ret_val = 0; + + 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); + + NGBE_WRITE_FLUSH(hw); + + /* Setup flow control */ + ret_val = TCALL(hw, mac.ops.setup_fc); + + /* 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; +} + +/** + * ngbe_enable_rx_dma - Enable the Rx DMA unit on emerald + * @hw: pointer to hardware structure + * @regval: register value to write to RXCTRL + * + * Enables the Rx DMA unit for emerald + **/ +s32 ngbe_enable_rx_dma(struct ngbe_hw *hw, u32 regval) +{ + DEBUGFUNC("\n"); + + /* + * Workaround for emerald 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 & NGBE_RDB_PB_CTL_PBEN) + TCALL(hw, mac.ops.enable_rx); + else + TCALL(hw, mac.ops.disable_rx); + + TCALL(hw, mac.ops.enable_sec_rx_path); + + return 0; +} + +/** + * ngbe_init_flash_params - Initialize flash params + * @hw: pointer to hardware structure + * + * Initializes the EEPROM parameters ngbe_eeprom_info within the + * ngbe_hw struct in order to set up EEPROM access. + **/ +s32 ngbe_init_flash_params(struct ngbe_hw *hw) +{ + struct ngbe_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; +} + +/** + * ngbe_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 ngbe_read_flash_buffer(struct ngbe_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 = NGBE_ERR_INVALID_ARGUMENT; + ERROR_REPORT1(NGBE_ERROR_ARGUMENT, "Invalid FLASH arguments"); + return status; + } + + for (i = 0; i < dwords; i++) { + wr32(hw, NGBE_SPI_DATA, data[i]); + wr32(hw, NGBE_SPI_CMD, + NGBE_SPI_CMD_ADDR(offset + i) | + NGBE_SPI_CMD_CMD(0x0)); + + status = po32m(hw, NGBE_SPI_STATUS, + NGBE_SPI_STATUS_OPDONE, NGBE_SPI_STATUS_OPDONE, + NGBE_SPI_TIMEOUT, 0); + if (status) { + DEBUGOUT("FLASH read timed out\n"); + break; + } + } + + return status; +} + +/** + * ngbe_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 ngbe_write_flash_buffer(struct ngbe_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 = NGBE_ERR_INVALID_ARGUMENT; + ERROR_REPORT1(NGBE_ERROR_ARGUMENT, "Invalid FLASH arguments"); + return status; + } + + for (i = 0; i < dwords; i++) { + wr32(hw, NGBE_SPI_CMD, + NGBE_SPI_CMD_ADDR(offset + i) | + NGBE_SPI_CMD_CMD(0x1)); + + status = po32m(hw, NGBE_SPI_STATUS, + NGBE_SPI_STATUS_OPDONE, NGBE_SPI_STATUS_OPDONE, + NGBE_SPI_TIMEOUT, 0); + if (status != 0) { + DEBUGOUT("FLASH write timed out\n"); + break; + } + data[i] = rd32(hw, NGBE_SPI_DATA); + } + + return status; +} + +/** + * ngbe_init_eeprom_params - Initialize EEPROM params + * @hw: pointer to hardware structure + * + * Initializes the EEPROM parameters ngbe_eeprom_info within the + * ngbe_hw struct in order to set up EEPROM access. + **/ +s32 ngbe_init_eeprom_params(struct ngbe_hw *hw) +{ + struct ngbe_eeprom_info *eeprom = &hw->eeprom; + u16 eeprom_size; + s32 status = 0; + + DEBUGFUNC("\n"); + + if (eeprom->type == ngbe_eeprom_uninitialized) { + eeprom->semaphore_delay = 10; + eeprom->type = ngbe_eeprom_none; + + if (!(rd32(hw, NGBE_SPI_STATUS) & + NGBE_SPI_STATUS_FLASH_BYPASS)) { + eeprom->type = ngbe_flash; + eeprom_size = 4096; + eeprom->word_size = eeprom_size >> 1; + + DEBUGOUT2("Eeprom params: type = %d, size = %d\n", + eeprom->type, eeprom->word_size); + } + } + + eeprom->sw_region_offset = 0x80; + + return status; +} + +/** + * ngbe_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 ngbe_read_ee_hostif_data(struct ngbe_hw *hw, u16 offset, + u16 *data) +{ + s32 status; + struct ngbe_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 = NGBE_CPU_TO_BE32(offset * 2); + /* one word */ + buffer.length = NGBE_CPU_TO_BE16(sizeof(u16)); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, false); + + if (status) + return status; + if (ngbe_check_mng_access(hw)) + *data = (u16)rd32a(hw, NGBE_MNG_MBOX, + FW_NVM_DATA_OFFSET); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + return status; + } + + return 0; +} + +s32 ngbe_eepromcheck_cap(struct ngbe_hw *hw, u16 offset, + u32 *data) +{ + int tmp; + s32 status; + struct ngbe_hic_read_shadow_ram buffer; + + DEBUGFUNC("\n"); + buffer.hdr.req.cmd = FW_EEPROM_CHECK_STATUS; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = 0; + buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; + + /* convert offset from words to bytes */ + buffer.address = 0; + /* one word */ + buffer.length = 0; + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, false); + + if (status) + return status; + if (ngbe_check_mng_access(hw)) { + tmp = (u32)rd32a(hw, NGBE_MNG_MBOX, 1); + if (tmp == NGBE_CHECKSUM_CAP_ST_PASS) { + status = 0; + } else + status = NGBE_ERR_EEPROM_CHECKSUM; + } else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + return status; + } + + return status; +} + +s32 ngbe_phy_signal_set(struct ngbe_hw *hw) +{ + s32 status; + struct ngbe_hic_read_shadow_ram buffer; + + DEBUGFUNC("\n"); + buffer.hdr.req.cmd = FW_PHY_SIGNAL; + buffer.hdr.req.buf_lenh = 0; + buffer.hdr.req.buf_lenl = 0; + buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; + + /* convert offset from words to bytes */ + buffer.address = 0; + /* one word */ + buffer.length = 0; + + status = ngbe_host_interface_pass_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, false); + + if (status) + return status; + + return status; +} + +/** + * ngbe_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 ngbe_read_ee_hostif(struct ngbe_hw *hw, u16 offset, + u16 *data) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH) == 0) { + status = ngbe_read_ee_hostif_data(hw, offset, data); + TCALL(hw, mac.ops.release_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH); + } else { + status = NGBE_ERR_SWFW_SYNC; + } + + return status; +} + +/** + * ngbe_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 ngbe_read_ee_hostif_buffer(struct ngbe_hw *hw, + u16 offset, u16 words, u16 *data) +{ + struct ngbe_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, + NGBE_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 = NGBE_CPU_TO_BE32((offset + current_word) * 2); + buffer.length = NGBE_CPU_TO_BE16(words_to_read * 2); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, + false); + + if (status) { + DEBUGOUT("Host interface command failed\n"); + goto out; + } + + for (i = 0; i < words_to_read; i++) { + u32 reg = NGBE_MNG_MBOX + (FW_NVM_DATA_OFFSET << 2) + + 2 * i; + if (ngbe_check_mng_access(hw)) + value = rd32(hw, reg); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + goto out; + } + 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, + NGBE_MNG_SWFW_SYNC_SW_FLASH); + return status; +} + + +/** + * ngbe_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 32 bit word from the EEPROM using the hostif. + **/ +s32 ngbe_read_ee_hostif_data32(struct ngbe_hw *hw, u16 offset, + u32 *data) +{ + s32 status; + struct ngbe_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 = NGBE_CPU_TO_BE32(offset * 2); + /* one word */ + buffer.length = NGBE_CPU_TO_BE16(sizeof(u32)); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, false); + if (status) + return status; + if (ngbe_check_mng_access(hw)) + *data = (u32)rd32a(hw, NGBE_MNG_MBOX, FW_NVM_DATA_OFFSET); + else { + status = NGBE_ERR_MNG_ACCESS_FAILED; + return status; + } + return 0; +} + +/** + * ngbe_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 32 bit word from the EEPROM using the hostif. + **/ +s32 ngbe_read_ee_hostif32(struct ngbe_hw *hw, u16 offset, + u32 *data) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, NGBE_MNG_SWFW_SYNC_SW_FLASH) == 0) { + status = ngbe_read_ee_hostif_data32(hw, offset, data); + TCALL(hw, mac.ops.release_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH); + } else { + status = NGBE_ERR_SWFW_SYNC; + } + + return status; +} + + +/** + * ngbe_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 ngbe_write_ee_hostif_data(struct ngbe_hw *hw, u16 offset, + u16 data) +{ + s32 status; + struct ngbe_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 = NGBE_CPU_TO_BE16(sizeof(u16)); + buffer.data = data; + buffer.address = NGBE_CPU_TO_BE32(offset * 2); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, false); + + return status; +} + +/** + * ngbe_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 ngbe_write_ee_hostif(struct ngbe_hw *hw, u16 offset, + u16 data) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH) == 0) { + status = ngbe_write_ee_hostif_data(hw, offset, data); + TCALL(hw, mac.ops.release_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH); + } else { + DEBUGOUT("write ee hostif failed to get semaphore"); + status = NGBE_ERR_SWFW_SYNC; + } + + return status; +} + +/** + * ngbe_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 ngbe_write_ee_hostif_data32(struct ngbe_hw *hw, u16 offset, + u32 data) +{ + s32 status; + struct ngbe_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 = NGBE_CPU_TO_BE16(sizeof(u32)); + buffer.data = data; + buffer.address = NGBE_CPU_TO_BE32(offset * 2); + + status = ngbe_host_interface_command(hw, (u32 *)&buffer, + sizeof(buffer), + NGBE_HI_COMMAND_TIMEOUT, false); + + return status; +} + +/*** ngbe_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 ngbe_write_ee_hostif32(struct ngbe_hw *hw, u16 offset, + u32 data) +{ + s32 status = 0; + + DEBUGFUNC("\n"); + + if (TCALL(hw, mac.ops.acquire_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH) == 0) { + status = ngbe_write_ee_hostif_data32(hw, offset, data); + TCALL(hw, mac.ops.release_swfw_sync, + NGBE_MNG_SWFW_SYNC_SW_FLASH); + } else { + DEBUGOUT("write ee hostif failed to get semaphore"); + status = NGBE_ERR_SWFW_SYNC; + } + + return status; +} + + +/** + * ngbe_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 ngbe_write_ee_hostif_buffer(struct ngbe_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, + NGBE_MNG_SWFW_SYNC_SW_FLASH); + if (status != 0) { + DEBUGOUT("EEPROM write buffer - semaphore failed\n"); + return status; + } + + for (i = 0; i < words; i++) { + status = ngbe_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, NGBE_MNG_SWFW_SYNC_SW_FLASH); + return status; +} + + + +/** + * ngbe_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 ngbe_calc_eeprom_checksum(struct ngbe_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(NGBE_EEPROM_LAST_WORD * + sizeof(u16)); + if (!eeprom_ptrs) + return NGBE_ERR_NO_SPACE; + /* Read pointer area */ + status = ngbe_read_ee_hostif_buffer(hw, 0, + NGBE_EEPROM_LAST_WORD, + eeprom_ptrs); + if (status) { + DEBUGOUT("Failed to read EEPROM image\n"); + return status; + } + local_buffer = eeprom_ptrs; + } else { + if (buffer_size < NGBE_EEPROM_LAST_WORD) + return NGBE_ERR_PARAM; + local_buffer = buffer; + } + + for (i = 0; i < NGBE_EEPROM_LAST_WORD; i++) + if (i != hw->eeprom.sw_region_offset + NGBE_EEPROM_CHECKSUM) + checksum += local_buffer[i]; + + checksum = (u16)NGBE_EEPROM_SUM - checksum; + if (eeprom_ptrs) + vfree(eeprom_ptrs); + + return (s32)checksum; +} + +/** + * ngbe_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 ngbe_update_eeprom_checksum(struct ngbe_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 = ngbe_read_ee_hostif(hw, 0, &checksum); + if (status) { + DEBUGOUT("EEPROM read failed\n"); + return status; + } + + status = ngbe_calc_eeprom_checksum(hw); + if (status < 0) + return status; + + checksum = (u16)(status & 0xffff); + + status = ngbe_write_ee_hostif(hw, NGBE_EEPROM_CHECKSUM, + checksum); + if (status) + return status; + + return status; +} + +/** + * ngbe_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 ngbe_validate_eeprom_checksum(struct ngbe_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 = ngbe_read_ee_hostif(hw, hw->eeprom.sw_region_offset + + NGBE_EEPROM_CHECKSUM, + &read_checksum); + if (status) + return status; + + /* Verify read checksum from EEPROM is the same as + * calculated checksum + */ + if (read_checksum != checksum) { + status = NGBE_ERR_EEPROM_CHECKSUM; + ERROR_REPORT1(NGBE_ERROR_INVALID_STATE, + "Invalid EEPROM checksum\n"); + } + + /* If the user cares, return the calculated checksum */ + if (checksum_val) + *checksum_val = checksum; + + return status; +} + +/** + * ngbe_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 ngbe_check_mac_link(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete) +{ + u32 i; + u16 value = 0; + s32 status = 0; + u16 speed_sta = 0; + + DEBUGFUNC("ngbe_check_mac_link"); + + if (link_up_wait_to_complete) { + for (i = 0; i < NGBE_LINK_UP_TIME; i++) { + status = TCALL(hw, phy.ops.read_reg, 0x1A, 0xA43, &value); + if (!status && (value & 0x4)) { + *link_up = true; + break; + } else { + *link_up = false; + } + msleep(100); + } + } else { + status = TCALL(hw, phy.ops.read_reg, 0x1A, 0xA43, &value); + if (!status && (value & 0x4)) { + *link_up = true; + } else { + *link_up = false; + } + } + + speed_sta = value & 0x38; + if (*link_up) { + if (speed_sta == 0x28) { + *speed = NGBE_LINK_SPEED_1GB_FULL; + } else if (speed_sta == 0x18) { + *speed = NGBE_LINK_SPEED_100_FULL; + } else if (speed_sta == 0x8) { + *speed = NGBE_LINK_SPEED_10_FULL; + } + } else + *speed = NGBE_LINK_SPEED_UNKNOWN; + + if (*speed == NGBE_LINK_SPEED_1GB_FULL) { + status = TCALL(hw, phy.ops.read_reg, 0xA, 0x0, &value); + if (!status && !(value & 0x2000)) { + *link_up = false; + } + } + return status; +} + +s32 ngbe_check_mac_link_mdi(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete) +{ + u32 i; + u16 value = 0; + s32 status = 0; + u16 speed_sta = 0; + + DEBUGFUNC("ngbe_check_mac_link_mdi"); + + if (hw->phy.type == ngbe_phy_m88e1512) + /* select page 0 */ + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + else + /* select page 1 */ + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + status = TCALL(hw, phy.ops.read_reg_mdi, 17, 0, &value); + if (link_up_wait_to_complete) { + for (i = 0; i < NGBE_LINK_UP_TIME; i++) { + status = TCALL(hw, phy.ops.read_reg_mdi, 17, 0, &value); + if (value & 0x400) { + *link_up = true; + break; + } else { + *link_up = false; + } + msleep(100); + } + } else { + status = TCALL(hw, phy.ops.read_reg_mdi, 17, 0, &value); + if (value & 0x400) { + *link_up = true; + } else { + *link_up = false; + } + } + + speed_sta = value & 0xC000; + if (*link_up) { + if (speed_sta == 0x8000) { + *speed = NGBE_LINK_SPEED_1GB_FULL; + } else if (speed_sta == 0x4000) { + *speed = NGBE_LINK_SPEED_100_FULL; + } else if (speed_sta == 0x0000) { + *speed = NGBE_LINK_SPEED_10_FULL; + } + } else + *speed = NGBE_LINK_SPEED_UNKNOWN; + + return status; +} + +s32 ngbe_check_mac_link_yt8521s(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete) +{ + u32 i; + u16 value = 0; + s32 status = 0; + u16 speed_sta = 0; + + DEBUGFUNC("ngbe_check_mac_link_yt"); + + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x11, 0, &value); + if (link_up_wait_to_complete) { + for (i = 0; i < NGBE_LINK_UP_TIME; i++) { + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x11, 0, &value); + if (value & 0x400) { + *link_up = true; + break; + } else { + *link_up = false; + } + msleep(100); + } + } else { + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x11, 0, &value); + if (value & 0x400) { + *link_up = true; + } else { + *link_up = false; + ngbe_phy_read_reg_mdi(hw, 0x11, 0, &value); + if (value & 0x400) { + *link_up = true; + //printk("yt8521: diankou link is up\n"); + } else { + *link_up = false; + //printk("yt8521: diankou link is down\n"); + } + } + } + + speed_sta = value & 0xC000; + if (*link_up) { + if (speed_sta == 0x8000) { + *speed = NGBE_LINK_SPEED_1GB_FULL; + } else if (speed_sta == 0x4000) { + *speed = NGBE_LINK_SPEED_100_FULL; + } else if (speed_sta == 0x0000) { + *speed = NGBE_LINK_SPEED_10_FULL; + } + } else + *speed = NGBE_LINK_SPEED_UNKNOWN; + return status; +} + +s32 ngbe_check_mac_link_zte(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete) +{ + u32 i; + u16 value = 0; + s32 status = 0; + u16 speed_sta = 0; + + DEBUGFUNC("ngbe_check_mac_link_zte"); + + /* PHY status register */ + status = TCALL(hw, phy.ops.read_reg_mdi, 0x1a, 0, &value); + + if (link_up_wait_to_complete) { + for (i = 0; i < NGBE_LINK_UP_TIME; i++) { + status = TCALL(hw, phy.ops.read_reg_mdi, 0x1a, 0, &value); + /*bit 6->0x0040*/ + if (value & 0x40) { + *link_up = true; + break; + } else { + *link_up = false; + } + msleep(100); + } + } else { + status = TCALL(hw, phy.ops.read_reg_mdi, 0x1a, 0, &value); + if (value & 0x40) { + *link_up = true; + } else { + *link_up = false; + } + } + + speed_sta = value & 0xC000; + if (*link_up) { + if (speed_sta == 0x0200) { + *speed = NGBE_LINK_SPEED_1GB_FULL; + } else if (speed_sta == 0x0100) { + *speed = NGBE_LINK_SPEED_100_FULL; + } else if (speed_sta == 0x0000) { + *speed = NGBE_LINK_SPEED_10_FULL; + } + } else { + *speed = NGBE_LINK_SPEED_UNKNOWN; + } + return status; +} + +/** + * ngbe_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 ngbe_setup_eee(struct ngbe_hw *hw, bool enable_eee) +{ + /* fix eee */ + UNREFERENCED_PARAMETER(hw); + UNREFERENCED_PARAMETER(enable_eee); + DEBUGFUNC("\n"); + + return 0; +} + +s32 ngbe_init_ops_common(struct ngbe_hw *hw) +{ + struct ngbe_mac_info *mac = &hw->mac; + struct ngbe_eeprom_info *eeprom = &hw->eeprom; + struct ngbe_flash_info *flash = &hw->flash; + + /* MAC */ + mac->ops.init_hw = ngbe_init_hw; + mac->ops.clear_hw_cntrs = ngbe_clear_hw_cntrs; + mac->ops.get_mac_addr = ngbe_get_mac_addr; + mac->ops.stop_adapter = ngbe_stop_adapter; + mac->ops.get_bus_info = ngbe_get_bus_info; + mac->ops.set_lan_id = ngbe_set_lan_id_multi_port_pcie; + mac->ops.acquire_swfw_sync = ngbe_acquire_swfw_sync; + mac->ops.release_swfw_sync = ngbe_release_swfw_sync; + mac->ops.reset_hw = ngbe_reset_hw; + mac->ops.get_media_type = ngbe_get_media_type; + mac->ops.disable_sec_rx_path = ngbe_disable_sec_rx_path; + mac->ops.enable_sec_rx_path = ngbe_enable_sec_rx_path; + mac->ops.enable_rx_dma = ngbe_enable_rx_dma; + mac->ops.start_hw = ngbe_start_hw; + mac->ops.get_device_caps = ngbe_get_device_caps; + mac->ops.setup_eee = ngbe_setup_eee; + + /* LEDs */ + mac->ops.led_on = ngbe_led_on; + mac->ops.led_off = ngbe_led_off; + + /* RAR, Multicast, VLAN */ + mac->ops.set_rar = ngbe_set_rar; + mac->ops.clear_rar = ngbe_clear_rar; + mac->ops.init_rx_addrs = ngbe_init_rx_addrs; + mac->ops.update_uc_addr_list = ngbe_update_uc_addr_list; + mac->ops.update_mc_addr_list = ngbe_update_mc_addr_list; + mac->ops.enable_mc = ngbe_enable_mc; + mac->ops.disable_mc = ngbe_disable_mc; + mac->ops.enable_rx = ngbe_enable_rx; + mac->ops.disable_rx = ngbe_disable_rx; + mac->ops.set_vmdq_san_mac = ngbe_set_vmdq_san_mac; + mac->ops.insert_mac_addr = ngbe_insert_mac_addr; + mac->rar_highwater = 1; + mac->ops.set_vfta = ngbe_set_vfta; + mac->ops.set_vlvf = ngbe_set_vlvf; + mac->ops.clear_vfta = ngbe_clear_vfta; + mac->ops.init_uta_tables = ngbe_init_uta_tables; + mac->ops.set_mac_anti_spoofing = ngbe_set_mac_anti_spoofing; + mac->ops.set_vlan_anti_spoofing = ngbe_set_vlan_anti_spoofing; + mac->ops.set_ethertype_anti_spoofing = + ngbe_set_ethertype_anti_spoofing; + + /* Flow Control */ + mac->ops.fc_enable = ngbe_fc_enable; + mac->ops.setup_fc = ngbe_setup_fc; + + /* Link */ + mac->ops.get_link_capabilities = ngbe_get_link_capabilities; + mac->ops.check_link = ngbe_check_mac_link; + mac->ops.setup_rxpba = ngbe_set_rxpba; + + mac->mcft_size = NGBE_SP_MC_TBL_SIZE; + mac->vft_size = NGBE_SP_VFT_TBL_SIZE; + mac->num_rar_entries = NGBE_SP_RAR_ENTRIES; + mac->rx_pb_size = NGBE_SP_RX_PB_SIZE; + mac->max_rx_queues = NGBE_SP_MAX_RX_QUEUES; + mac->max_tx_queues = NGBE_SP_MAX_TX_QUEUES; + mac->max_msix_vectors = ngbe_get_pcie_msix_count(hw); + + mac->arc_subsystem_valid = (rd32(hw, NGBE_MIS_ST) & + NGBE_MIS_ST_MNG_INIT_DN) ? true : false; + + hw->mbx.ops.init_params = ngbe_init_mbx_params_pf; + + /* EEPROM */ + eeprom->ops.init_params = ngbe_init_eeprom_params; + eeprom->ops.calc_checksum = ngbe_calc_eeprom_checksum; + eeprom->ops.read = ngbe_read_ee_hostif; + eeprom->ops.read_buffer = ngbe_read_ee_hostif_buffer; + eeprom->ops.read32 = ngbe_read_ee_hostif32; + eeprom->ops.write = ngbe_write_ee_hostif; + eeprom->ops.write_buffer = ngbe_write_ee_hostif_buffer; + eeprom->ops.update_checksum = ngbe_update_eeprom_checksum; + eeprom->ops.validate_checksum = ngbe_validate_eeprom_checksum; + eeprom->ops.eeprom_chksum_cap_st = ngbe_eepromcheck_cap; + eeprom->ops.phy_signal_set = ngbe_phy_signal_set; + + /* FLASH */ + flash->ops.init_params = ngbe_init_flash_params; + flash->ops.read_buffer = ngbe_read_flash_buffer; + flash->ops.write_buffer = ngbe_write_flash_buffer; + + /* Manageability interface */ + mac->ops.set_fw_drv_ver = ngbe_set_fw_drv_ver; + + mac->ops.get_thermal_sensor_data = + ngbe_get_thermal_sensor_data; + mac->ops.init_thermal_sensor_thresh = + ngbe_init_thermal_sensor_thresh; + + return NGBE_OK; +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_hw.h b/drivers/net/ethernet/netswift/ngbe/ngbe_hw.h new file mode 100644 index 0000000000000..d7f06643f258a --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_hw.h @@ -0,0 +1,280 @@ +/* + * WangXun 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 _NGBE_HW_H_ +#define _NGBE_HW_H_ + +#define NGBE_EMC_INTERNAL_DATA 0x00 +#define NGBE_EMC_INTERNAL_THERM_LIMIT 0x20 +#define NGBE_EMC_DIODE1_DATA 0x01 +#define NGBE_EMC_DIODE1_THERM_LIMIT 0x19 +#define NGBE_EMC_DIODE2_DATA 0x23 +#define NGBE_EMC_DIODE2_THERM_LIMIT 0x1A +#define NGBE_EMC_DIODE3_DATA 0x2A +#define NGBE_EMC_DIODE3_THERM_LIMIT 0x30 + +#define SPI_CLK_DIV 3 + +#define SPI_CMD_ERASE_CHIP 4 // SPI erase chip command +#define SPI_CMD_ERASE_SECTOR 3 // SPI erase sector command +#define SPI_CMD_WRITE_DWORD 0 // SPI write a dword command +#define SPI_CMD_READ_DWORD 1 // SPI read a dword command +#define SPI_CMD_USER_CMD 5 // SPI user command + +#define SPI_CLK_CMD_OFFSET 28 // SPI command field offset in Command register +#define SPI_CLK_DIV_OFFSET 25 // SPI clock divide field offset in Command register + +#define SPI_TIME_OUT_VALUE 10000 +#define SPI_SECTOR_SIZE (4 * 1024) // FLASH sector size is 64KB +#define SPI_H_CMD_REG_ADDR 0x10104 // SPI Command register address +#define SPI_H_DAT_REG_ADDR 0x10108 // SPI Data register address +#define SPI_H_STA_REG_ADDR 0x1010c // SPI Status register address +#define SPI_H_USR_CMD_REG_ADDR 0x10110 // SPI User Command register address +#define SPI_CMD_CFG1_ADDR 0x10118 // Flash command configuration register 1 +#define MISC_RST_REG_ADDR 0x1000c // Misc reset register address +#define MGR_FLASH_RELOAD_REG_ADDR 0x101a0 // MGR reload flash read + +#define MAC_ADDR0_WORD0_OFFSET_1G 0x006000c // MAC Address for LAN0, stored in external FLASH +#define MAC_ADDR0_WORD1_OFFSET_1G 0x0060014 +#define MAC_ADDR1_WORD0_OFFSET_1G 0x006800c // MAC Address for LAN1, stored in external FLASH +#define MAC_ADDR1_WORD1_OFFSET_1G 0x0068014 +#define MAC_ADDR2_WORD0_OFFSET_1G 0x007000c // MAC Address for LAN2, stored in external FLASH +#define MAC_ADDR2_WORD1_OFFSET_1G 0x0070014 +#define MAC_ADDR3_WORD0_OFFSET_1G 0x007800c // MAC Address for LAN3, stored in external FLASH +#define MAC_ADDR3_WORD1_OFFSET_1G 0x0078014 +#define PRODUCT_SERIAL_NUM_OFFSET_1G 0x00f0000 // Product Serial Number, stored in external FLASH last sector + +struct ngbe_hic_read_cab { + union ngbe_hic_hdr2 hdr; + union { + u8 d8[252]; + u16 d16[126]; + u32 d32[63]; + } dbuf; +}; + + +/** + * Packet Type decoding + **/ +/* ngbe_dec_ptype.mac: outer mac */ +enum ngbe_dec_ptype_mac { + NGBE_DEC_PTYPE_MAC_IP = 0, + NGBE_DEC_PTYPE_MAC_L2 = 2, + NGBE_DEC_PTYPE_MAC_FCOE = 3, +}; + +/* ngbe_dec_ptype.[e]ip: outer&encaped ip */ +#define NGBE_DEC_PTYPE_IP_FRAG (0x4) +enum ngbe_dec_ptype_ip { + NGBE_DEC_PTYPE_IP_NONE = 0, + NGBE_DEC_PTYPE_IP_IPV4 = 1, + NGBE_DEC_PTYPE_IP_IPV6 = 2, + NGBE_DEC_PTYPE_IP_FGV4 = + (NGBE_DEC_PTYPE_IP_FRAG | NGBE_DEC_PTYPE_IP_IPV4), + NGBE_DEC_PTYPE_IP_FGV6 = + (NGBE_DEC_PTYPE_IP_FRAG | NGBE_DEC_PTYPE_IP_IPV6), +}; + +/* ngbe_dec_ptype.etype: encaped type */ +enum ngbe_dec_ptype_etype { + NGBE_DEC_PTYPE_ETYPE_NONE = 0, + NGBE_DEC_PTYPE_ETYPE_IPIP = 1, /* IP+IP */ + NGBE_DEC_PTYPE_ETYPE_IG = 2, /* IP+GRE */ + NGBE_DEC_PTYPE_ETYPE_IGM = 3, /* IP+GRE+MAC */ + NGBE_DEC_PTYPE_ETYPE_IGMV = 4, /* IP+GRE+MAC+VLAN */ +}; + +/* ngbe_dec_ptype.proto: payload proto */ +enum ngbe_dec_ptype_prot { + NGBE_DEC_PTYPE_PROT_NONE = 0, + NGBE_DEC_PTYPE_PROT_UDP = 1, + NGBE_DEC_PTYPE_PROT_TCP = 2, + NGBE_DEC_PTYPE_PROT_SCTP = 3, + NGBE_DEC_PTYPE_PROT_ICMP = 4, + NGBE_DEC_PTYPE_PROT_TS = 5, /* time sync */ +}; + +/* ngbe_dec_ptype.layer: payload layer */ +enum ngbe_dec_ptype_layer { + NGBE_DEC_PTYPE_LAYER_NONE = 0, + NGBE_DEC_PTYPE_LAYER_PAY2 = 1, + NGBE_DEC_PTYPE_LAYER_PAY3 = 2, + NGBE_DEC_PTYPE_LAYER_PAY4 = 3, +}; + +struct ngbe_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 ngbe_dec_ptype ngbe_dptype; + + +u16 ngbe_get_pcie_msix_count(struct ngbe_hw *hw); +s32 ngbe_init_hw(struct ngbe_hw *hw); +s32 ngbe_start_hw(struct ngbe_hw *hw); +s32 ngbe_clear_hw_cntrs(struct ngbe_hw *hw); +s32 ngbe_read_pba_string(struct ngbe_hw *hw, u8 *pba_num, + u32 pba_num_size); +s32 ngbe_get_mac_addr(struct ngbe_hw *hw, u8 *mac_addr); +s32 ngbe_get_bus_info(struct ngbe_hw *hw); +void ngbe_set_pci_config_data(struct ngbe_hw *hw, u16 link_status); +void ngbe_set_lan_id_multi_port_pcie(struct ngbe_hw *hw); +s32 ngbe_stop_adapter(struct ngbe_hw *hw); + +s32 ngbe_led_on(struct ngbe_hw *hw, u32 index); +s32 ngbe_led_off(struct ngbe_hw *hw, u32 index); + +s32 ngbe_set_rar(struct ngbe_hw *hw, u32 index, u8 *addr, u64 pools, + u32 enable_addr); +s32 ngbe_clear_rar(struct ngbe_hw *hw, u32 index); +s32 ngbe_init_rx_addrs(struct ngbe_hw *hw); +s32 ngbe_update_mc_addr_list(struct ngbe_hw *hw, u8 *mc_addr_list, + u32 mc_addr_count, + ngbe_mc_addr_itr func, bool clear); +s32 ngbe_update_uc_addr_list(struct ngbe_hw *hw, u8 *addr_list, + u32 addr_count, ngbe_mc_addr_itr func); +s32 ngbe_enable_mc(struct ngbe_hw *hw); +s32 ngbe_disable_mc(struct ngbe_hw *hw); +s32 ngbe_disable_sec_rx_path(struct ngbe_hw *hw); +s32 ngbe_enable_sec_rx_path(struct ngbe_hw *hw); + +s32 ngbe_fc_enable(struct ngbe_hw *hw); +void ngbe_fc_autoneg(struct ngbe_hw *hw); +s32 ngbe_setup_fc(struct ngbe_hw *hw); + +s32 ngbe_validate_mac_addr(u8 *mac_addr); +s32 ngbe_acquire_swfw_sync(struct ngbe_hw *hw, u32 mask); +void ngbe_release_swfw_sync(struct ngbe_hw *hw, u32 mask); +s32 ngbe_disable_pcie_master(struct ngbe_hw *hw); + +s32 ngbe_set_vmdq(struct ngbe_hw *hw, u32 rar, u32 vmdq); +s32 ngbe_set_vmdq_san_mac(struct ngbe_hw *hw, u32 vmdq); +s32 ngbe_clear_vmdq(struct ngbe_hw *hw, u32 rar, u32 vmdq); +s32 ngbe_insert_mac_addr(struct ngbe_hw *hw, u8 *addr, u32 vmdq); +s32 ngbe_init_uta_tables(struct ngbe_hw *hw); +s32 ngbe_set_vfta(struct ngbe_hw *hw, u32 vlan, + u32 vind, bool vlan_on); +s32 ngbe_set_vlvf(struct ngbe_hw *hw, u32 vlan, u32 vind, + bool vlan_on, bool *vfta_changed); +s32 ngbe_clear_vfta(struct ngbe_hw *hw); +s32 ngbe_find_vlvf_slot(struct ngbe_hw *hw, u32 vlan); + +void ngbe_set_mac_anti_spoofing(struct ngbe_hw *hw, bool enable, int pf); +void ngbe_set_vlan_anti_spoofing(struct ngbe_hw *hw, bool enable, int vf); +void ngbe_set_ethertype_anti_spoofing(struct ngbe_hw *hw, + bool enable, int vf); +s32 ngbe_get_device_caps(struct ngbe_hw *hw, u16 *device_caps); +void ngbe_set_rxpba(struct ngbe_hw *hw, int num_pb, u32 headroom, + int strategy); +s32 ngbe_set_fw_drv_ver(struct ngbe_hw *hw, u8 maj, u8 min, + u8 build, u8 ver); +s32 ngbe_reset_hostif(struct ngbe_hw *hw); +u8 ngbe_calculate_checksum(u8 *buffer, u32 length); +s32 ngbe_host_interface_command(struct ngbe_hw *hw, u32 *buffer, + u32 length, u32 timeout, bool return_data); + +void ngbe_clear_tx_pending(struct ngbe_hw *hw); +void ngbe_stop_mac_link_on_d3(struct ngbe_hw *hw); +bool ngbe_mng_present(struct ngbe_hw *hw); +bool ngbe_check_mng_access(struct ngbe_hw *hw); + +s32 ngbe_get_thermal_sensor_data(struct ngbe_hw *hw); +s32 ngbe_init_thermal_sensor_thresh(struct ngbe_hw *hw); +void ngbe_enable_rx(struct ngbe_hw *hw); +void ngbe_disable_rx(struct ngbe_hw *hw); +s32 ngbe_setup_mac_link_multispeed_fiber(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); +int ngbe_check_flash_load(struct ngbe_hw *hw, u32 check_bit); + +/* @ngbe_api.h */ +void ngbe_atr_compute_perfect_hash(union ngbe_atr_input *input, + union ngbe_atr_input *mask); +u32 ngbe_atr_compute_sig_hash(union ngbe_atr_hash_dword input, + union ngbe_atr_hash_dword common); + +s32 ngbe_get_link_capabilities(struct ngbe_hw *hw, + u32 *speed, bool *autoneg); +enum ngbe_media_type ngbe_get_media_type(struct ngbe_hw *hw); +void ngbe_disable_tx_laser_multispeed_fiber(struct ngbe_hw *hw); +void ngbe_enable_tx_laser_multispeed_fiber(struct ngbe_hw *hw); +void ngbe_flap_tx_laser_multispeed_fiber(struct ngbe_hw *hw); +void ngbe_set_hard_rate_select_speed(struct ngbe_hw *hw, + u32 speed); +s32 ngbe_setup_mac_link(struct ngbe_hw *hw, u32 speed, + bool autoneg_wait_to_complete); +void ngbe_init_mac_link_ops(struct ngbe_hw *hw); +s32 ngbe_reset_hw(struct ngbe_hw *hw); +s32 ngbe_identify_phy(struct ngbe_hw *hw); +s32 ngbe_init_ops_common(struct ngbe_hw *hw); +s32 ngbe_enable_rx_dma(struct ngbe_hw *hw, u32 regval); +s32 ngbe_init_ops(struct ngbe_hw *hw); +s32 ngbe_setup_eee(struct ngbe_hw *hw, bool enable_eee); + +s32 ngbe_init_flash_params(struct ngbe_hw *hw); +s32 ngbe_read_flash_buffer(struct ngbe_hw *hw, u32 offset, + u32 dwords, u32 *data); +s32 ngbe_write_flash_buffer(struct ngbe_hw *hw, u32 offset, + u32 dwords, u32 *data); + +s32 ngbe_read_eeprom(struct ngbe_hw *hw, + u16 offset, u16 *data); +s32 ngbe_read_eeprom_buffer(struct ngbe_hw *hw, u16 offset, + u16 words, u16 *data); +s32 ngbe_init_eeprom_params(struct ngbe_hw *hw); +s32 ngbe_update_eeprom_checksum(struct ngbe_hw *hw); +s32 ngbe_calc_eeprom_checksum(struct ngbe_hw *hw); +s32 ngbe_validate_eeprom_checksum(struct ngbe_hw *hw, + u16 *checksum_val); +s32 ngbe_upgrade_flash(struct ngbe_hw *hw, u32 region, + const u8 *data, u32 size); +s32 ngbe_write_ee_hostif_buffer(struct ngbe_hw *hw, + u16 offset, u16 words, u16 *data); +s32 ngbe_write_ee_hostif(struct ngbe_hw *hw, u16 offset, + u16 data); +s32 ngbe_write_ee_hostif32(struct ngbe_hw *hw, u16 offset, + u32 data); + +s32 ngbe_read_ee_hostif_buffer(struct ngbe_hw *hw, + u16 offset, u16 words, u16 *data); +s32 ngbe_read_ee_hostif(struct ngbe_hw *hw, u16 offset, u16 *data); + +s32 ngbe_read_ee_hostif32(struct ngbe_hw *hw, u16 offset, u32 *data); + +u32 ngbe_rd32_epcs(struct ngbe_hw *hw, u32 addr); +void ngbe_wr32_epcs(struct ngbe_hw *hw, u32 addr, u32 data); +void ngbe_wr32_ephy(struct ngbe_hw *hw, u32 addr, u32 data); +s32 ngbe_upgrade_flash_hostif(struct ngbe_hw *hw, u32 region, + const u8 *data, u32 size); + +s32 ngbe_check_mac_link_zte(struct ngbe_hw *hw, + u32 *speed, + bool *link_up, + bool link_up_wait_to_complete); + +s32 ngbe_eepromcheck_cap(struct ngbe_hw *hw, u16 offset, + u32 *data); +s32 ngbe_phy_signal_set(struct ngbe_hw *hw); + +#endif /* _NGBE_HW_H_ */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_lib.c b/drivers/net/ethernet/netswift/ngbe/ngbe_lib.c new file mode 100644 index 0000000000000..200fc34e9fa89 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_lib.c @@ -0,0 +1,701 @@ +/* + * WangXun 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 "ngbe.h" +#include "ngbe_sriov.h" + +/** + * ngbe_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 ngbe_cache_ring_vmdq(struct ngbe_adapter *adapter) +{ + struct ngbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + int i; + u16 reg_idx; + + /* only proceed if VMDq is enabled */ + if (!(adapter->flags & NGBE_FLAG_VMDQ_ENABLED)) + return false; + + /* start at VMDq register offset for SR-IOV enabled setups */ + reg_idx = vmdq->offset; + + for (i = 0; i < adapter->num_rx_queues; i++) { + + /* If we are greater than indices move to next pool */ + adapter->rx_ring[i]->reg_idx = reg_idx + i; + } + + reg_idx = vmdq->offset; + for (i = 0; i < adapter->num_tx_queues; i++) { + + /* If we are greater than indices move to next pool */ + adapter->tx_ring[i]->reg_idx = reg_idx + i; + } + + return true; +} + +/** + * ngbe_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 ngbe_cache_ring_rss(struct ngbe_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; +} + +/** + * ngbe_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 ngbe_cache_ring_register(struct ngbe_adapter *adapter) +{ + if (ngbe_cache_ring_vmdq(adapter)) + return; + + ngbe_cache_ring_rss(adapter); +} + +#define NGBE_RSS_64Q_MASK 0x3F +#define NGBE_RSS_16Q_MASK 0xF +#define NGBE_RSS_8Q_MASK 0x7 +#define NGBE_RSS_4Q_MASK 0x3 +#define NGBE_RSS_2Q_MASK 0x1 +#define NGBE_RSS_DISABLED_MASK 0x0 + +/** + * ngbe_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 ngbe_set_vmdq_queues(struct ngbe_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 = NGBE_RSS_DISABLED_MASK; + + /* only proceed if VMDq is enabled */ + if (!(adapter->flags & NGBE_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, NGBE_MAX_VMDQ_INDICES, vmdq_i); + + /* when VMDQ on, disable RSS */ + rss_i = 1; + + /* 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; + + return true; +} + +/** + * ngbe_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 ngbe_set_rss_queues(struct ngbe_adapter *adapter) +{ + struct ngbe_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 = NGBE_RSS_8Q_MASK; + + adapter->num_rx_queues = rss_i; + adapter->num_tx_queues = rss_i; + + return true; +} + +/* + * ngbe_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 ngbe_set_num_queues(struct ngbe_adapter *adapter) +{ + /* Start with base case */ + adapter->num_rx_queues = 1; + adapter->num_tx_queues = 1; + adapter->queues_per_pool = 1; + + if (ngbe_set_vmdq_queues(adapter)) + return; + + ngbe_set_rss_queues(adapter); + +} + +/** + * ngbe_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 ngbe_acquire_msix_vectors(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int i, vectors, vector_threshold; + + if (!(adapter->flags & NGBE_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; + + /* we need to alloc (7vfs+1pf+1misc) or (8vfs+1misc) msix entries */ + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) { + vectors += adapter->ring_feature[RING_F_VMDQ].offset; + } + + 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 &= ~NGBE_FLAG_MSIX_ENABLED; + kfree(adapter->msix_entries); + adapter->msix_entries = NULL; + + return vectors; + } + + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) { + if (vectors < 9) { + adapter->flags2 &= ~NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP; + e_dev_warn("Remain available irqs < 9. Disable MISC IRQ REMAP.\n"); + } else + vectors -= adapter->ring_feature[RING_F_VMDQ].offset; + } + + /* we successfully allocated some number of vectors within our + * requested range. + */ + adapter->flags |= NGBE_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 ngbe_add_ring(struct ngbe_ring *ring, + struct ngbe_ring_container *head) +{ + ring->next = head->ring; + head->ring = ring; + head->count++; +} + +/** + * ngbe_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 ngbe_alloc_q_vector(struct ngbe_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 ngbe_q_vector *q_vector; + struct ngbe_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 ngbe_q_vector) + + (sizeof(struct ngbe_ring) * ring_count); + + /* customize cpu for Flow Director mapping */ + if ((tcs <= 1) && !(adapter->flags & NGBE_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, + ngbe_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 = NGBE_7K_ITR; + else + q_vector->itr = adapter->tx_itr_setting; + } else { + /* rx or rx/tx vector */ + if (adapter->rx_itr_setting == 1) + q_vector->itr = NGBE_7K_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 */ + ngbe_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 */ + ngbe_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; +} + +/** + * ngbe_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 ngbe_free_q_vector(struct ngbe_adapter *adapter, int v_idx) +{ + struct ngbe_q_vector *q_vector = adapter->q_vector[v_idx]; + struct ngbe_ring *ring; + + ngbe_for_each_ring(ring, q_vector->tx) + adapter->tx_ring[ring->queue_index] = NULL; + + ngbe_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); +} + +/** + * ngbe_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 ngbe_alloc_q_vectors(struct ngbe_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 = ngbe_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 = ngbe_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--) + ngbe_free_q_vector(adapter, v_idx); + + return -ENOMEM; +} + +/** + * ngbe_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 ngbe_free_q_vectors(struct ngbe_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--) + ngbe_free_q_vector(adapter, v_idx); +} + +void ngbe_reset_interrupt_capability(struct ngbe_adapter *adapter) +{ + if (adapter->flags & NGBE_FLAG_MSIX_ENABLED) { + adapter->flags &= ~NGBE_FLAG_MSIX_ENABLED; + pci_disable_msix(adapter->pdev); + kfree(adapter->msix_entries); + adapter->msix_entries = NULL; + } else if (adapter->flags & NGBE_FLAG_MSI_ENABLED) { + adapter->flags &= ~NGBE_FLAG_MSI_ENABLED; + pci_disable_msi(adapter->pdev); + } +} + +/** + * ngbe_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 ngbe_set_interrupt_capability(struct ngbe_adapter *adapter) +{ + int err; + + /* We will try to get MSI-X interrupts first */ + if (!ngbe_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 VMDq support */ + e_dev_warn("Disabling VMQd support\n"); + adapter->flags &= ~NGBE_FLAG_VMDQ_ENABLED; + +#ifdef CONFIG_PCI_IOV + /* Disable SR-IOV support */ + e_dev_warn("Disabling SR-IOV support\n"); + ngbe_disable_sriov(adapter); + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) + adapter->flags2 &= ~NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP; +#endif /* CONFIG_PCI_IOV */ + + /* 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. + */ + ngbe_set_num_queues(adapter); + adapter->num_q_vectors = 1; + + if (!(adapter->flags & NGBE_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 |= NGBE_FLAG_MSI_ENABLED; +} + +/** + * ngbe_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 ngbe_init_interrupt_scheme(struct ngbe_adapter *adapter) +{ + int err; + + /* if assigned vfs >= 7, the PF queue irq remain seq 0 and misc irq move from + * seq 1 to seq 8. it needs extra processions. + */ + if (adapter->num_vfs >= NGBE_MAX_VF_FUNCTIONS - 1) { + adapter->flags2 |= NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP; + } + + /* Number of supported queues */ + ngbe_set_num_queues(adapter); + + /* Set interrupt mode */ + ngbe_set_interrupt_capability(adapter); + + /* Allocate memory for queues */ + err = ngbe_alloc_q_vectors(adapter); + if (err) { + e_err(probe, "Unable to allocate memory for queue vectors\n"); + ngbe_reset_interrupt_capability(adapter); + return err; + } + + ngbe_cache_ring_register(adapter); + + set_bit(__NGBE_DOWN, &adapter->state); + + return 0; +} + +/** + * ngbe_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 ngbe_clear_interrupt_scheme(struct ngbe_adapter *adapter) +{ + ngbe_free_q_vectors(adapter); + ngbe_reset_interrupt_capability(adapter); + + /* remove this flags */ + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) { + adapter->flags2 &= ~NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP; + } +} + +void ngbe_tx_ctxtdesc(struct ngbe_ring *tx_ring, u32 vlan_macip_lens, + u32 fcoe_sof_eof, u32 type_tucmd, u32 mss_l4len_idx) +{ + struct ngbe_tx_context_desc *context_desc; + u16 i = tx_ring->next_to_use; + + context_desc = NGBE_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 |= NGBE_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/ngbe/ngbe_main.c b/drivers/net/ethernet/netswift/ngbe/ngbe_main.c new file mode 100644 index 0000000000000..9a3f4450d38e9 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_main.c @@ -0,0 +1,7119 @@ +/* + * WangXun 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 <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 "ngbe.h" +#include "ngbe_sriov.h" +#include "ngbe_hw.h" +#include "ngbe_phy.h" +#include "ngbe_pcierr.h" + +char ngbe_driver_name[32] = NGBE_NAME; +static const char ngbe_driver_string[] = + "WangXun Gigabit PCI Express Network Driver"; + +#define DRV_VERSION __stringify(1.1.0oe) + +const char ngbe_driver_version[32] = DRV_VERSION; +static const char ngbe_copyright[] = + "Copyright (c) 2018 -2019 Beijing WangXun Technology Co., Ltd"; +static const char ngbe_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 ngbe_underheat_msg[] = + "Network adapter has been started again since the temperature " + "has been back to normal state"; + +/* ngbe_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 ngbe_pci_tbl[] = { + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_TEST), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860A2), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860A2S), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860A4), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860A4S), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860AL2), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860AL2S), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860AL4), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860AL4S), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860AL_W), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860NCSI), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860AL1), 0}, + { PCI_VDEVICE(TRUSTNETIC, NGBE_DEV_ID_EM_WX1860A1), 0}, + { PCI_VDEVICE(TRUSTNETIC, 0x10c), 0}, + /* required last entry */ + { .device = 0 } +}; +MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl); + +MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <linux.nic(a)trustnetic.com>"); +MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +#define DEFAULT_DEBUG_LEVEL_SHIFT 3 + +static struct workqueue_struct *ngbe_wq; + +static bool ngbe_check_cfg_remove(struct ngbe_hw *hw, struct pci_dev *pdev); +static void ngbe_clean_rx_ring(struct ngbe_ring *rx_ring); +static void ngbe_clean_tx_ring(struct ngbe_ring *tx_ring); + +extern ngbe_dptype ngbe_ptype_lookup[256]; + +static inline ngbe_dptype ngbe_decode_ptype(const u8 ptype) +{ + return ngbe_ptype_lookup[ptype]; +} + +static inline ngbe_dptype +decode_rx_desc_ptype(const union ngbe_rx_desc *rx_desc) +{ + return ngbe_decode_ptype(NGBE_RXD_PKTTYPE(rx_desc)); +} + +static void ngbe_check_minimum_link(struct ngbe_adapter *adapter, + int expected_gts) +{ + struct ngbe_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 == ngbe_bus_type_internal) + return; + + pdev = adapter->pdev; + + pcie_print_link_status(pdev); +} + +/** + * ngbe_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 ngbe_enumerate_functions(struct ngbe_adapter *adapter) +{ + struct pci_dev *entry, *pdev = adapter->pdev; + int physfns = 0; + + list_for_each_entry(entry, &pdev->bus->devices, bus_list) { +#ifdef CONFIG_PCI_IOV + /* don't count virtual functions */ + if (entry->is_virtfn) + continue; +#endif + + /* 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 ngbe_service_event_schedule(struct ngbe_adapter *adapter) +{ + if (!test_bit(__NGBE_DOWN, &adapter->state) && + !test_bit(__NGBE_REMOVING, &adapter->state) && + !test_and_set_bit(__NGBE_SERVICE_SCHED, &adapter->state)) + queue_work(ngbe_wq, &adapter->service_task); +} + +static void ngbe_service_event_complete(struct ngbe_adapter *adapter) +{ + BUG_ON(!test_bit(__NGBE_SERVICE_SCHED, &adapter->state)); + + /* flush memory to make sure state is correct before next watchdog */ + smp_mb__before_atomic(); + clear_bit(__NGBE_SERVICE_SCHED, &adapter->state); +} + +static void ngbe_remove_adapter(struct ngbe_hw *hw) +{ + struct ngbe_adapter *adapter = hw->back; + + if (!hw->hw_addr) + return; + hw->hw_addr = NULL; + e_dev_err("Adapter removed\n"); + if (test_bit(__NGBE_SERVICE_INITED, &adapter->state)) + ngbe_service_event_schedule(adapter); +} + +static void ngbe_check_remove(struct ngbe_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 NGBE_FAILED_READ_REG. It also blocks any + * potential recursion. + */ + if (reg == NGBE_CFG_PORT_ST) { + ngbe_remove_adapter(hw); + return; + } + value = rd32(hw, NGBE_CFG_PORT_ST); + if (value == NGBE_FAILED_READ_REG) + ngbe_remove_adapter(hw); +} + +static u32 ngbe_validate_register_read(struct ngbe_hw *hw, u32 reg, bool quiet) +{ + int i; + u32 value; + u8 __iomem *reg_addr; + struct ngbe_adapter *adapter = hw->back; + + reg_addr = READ_ONCE(hw->hw_addr); + if (NGBE_REMOVED(reg_addr)) + return NGBE_FAILED_READ_REG; + for (i = 0; i < NGBE_DEAD_READ_RETRIES; ++i) { + value = ngbe_rd32(reg_addr + reg); + if (value != NGBE_DEAD_READ_REG) + break; + } + if (quiet) + return value; + if (value == NGBE_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; +} + +/** + * ngbe_read_reg - Read from device register + * @hw: hw specific details + * @reg: offset of register to read + * + * Returns : value read or NGBE_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 NGBE_FAILED_READ_REG (all ones). + */ +u32 ngbe_read_reg(struct ngbe_hw *hw, u32 reg, bool quiet) +{ + u32 value; + u8 __iomem *reg_addr; + + reg_addr = READ_ONCE(hw->hw_addr); + if (NGBE_REMOVED(reg_addr)) + return NGBE_FAILED_READ_REG; + value = ngbe_rd32(reg_addr + reg); + if (unlikely(value == NGBE_FAILED_READ_REG)) + ngbe_check_remove(hw, reg); + if (unlikely(value == NGBE_DEAD_READ_REG)) + value = ngbe_validate_register_read(hw, reg, quiet); + return value; +} + +static void ngbe_release_hw_control(struct ngbe_adapter *adapter) +{ + /* Let firmware take over control of h/w */ + wr32m(&adapter->hw, NGBE_CFG_PORT_CTL, + NGBE_CFG_PORT_CTL_DRV_LOAD, 0); +} + +static void ngbe_get_hw_control(struct ngbe_adapter *adapter) +{ + /* Let firmware know the driver has taken over */ + wr32m(&adapter->hw, NGBE_CFG_PORT_CTL, + NGBE_CFG_PORT_CTL_DRV_LOAD, NGBE_CFG_PORT_CTL_DRV_LOAD); +} + +/** + * ngbe_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 ngbe_set_ivar(struct ngbe_adapter *adapter, s8 direction, + u16 queue, u16 msix_vector) +{ + u32 ivar, index; + struct ngbe_hw *hw = &adapter->hw; + + if (direction == -1) { + /* other causes */ + msix_vector |= NGBE_PX_IVAR_ALLOC_VAL; + index = 0; + ivar = rd32(&adapter->hw, NGBE_PX_MISC_IVAR); + ivar &= ~(0xFF << index); + ivar |= (msix_vector << index); + /* if assigned VFs >= 7, the pf misc irq shall be remapped to 0x88. */ + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) + ivar = msix_vector; + wr32(&adapter->hw, NGBE_PX_MISC_IVAR, ivar); + } else { + /* tx or rx causes */ + msix_vector |= NGBE_PX_IVAR_ALLOC_VAL; + index = ((16 * (queue & 1)) + (8 * direction)); + ivar = rd32(hw, NGBE_PX_IVAR(queue >> 1)); + ivar &= ~(0xFF << index); + ivar |= (msix_vector << index); + wr32(hw, NGBE_PX_IVAR(queue >> 1), ivar); + } +} + +void ngbe_unmap_and_free_tx_resource(struct ngbe_ring *ring, + struct ngbe_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 ngbe_update_xoff_rx_lfc(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_hw_stats *hwstats = &adapter->stats; + int i; + u32 data; + + if ((hw->fc.current_mode != ngbe_fc_full) && + (hw->fc.current_mode != ngbe_fc_rx_pause)) + return; + + data = rd32(hw, NGBE_MAC_LXOFFRXC); + + hwstats->lxoffrxc += data; + + /* refill credits (no tx hang) if we received xoff */ + if (!data) + return; + + for (i = 0; i < adapter->num_tx_queues; i++) + clear_bit(__NGBE_HANG_CHECK_ARMED, + &adapter->tx_ring[i]->state); +} + +static u64 ngbe_get_tx_completed(struct ngbe_ring *ring) +{ + return ring->stats.packets; +} + +static u64 ngbe_get_tx_pending(struct ngbe_ring *ring) +{ + struct ngbe_adapter *adapter; + struct ngbe_hw *hw; + u32 head, tail; + + if (ring->accel) + adapter = ring->accel->adapter; + else + adapter = ring->q_vector->adapter; + + hw = &adapter->hw; + head = rd32(hw, NGBE_PX_TR_RP(ring->reg_idx)); + tail = rd32(hw, NGBE_PX_TR_WP(ring->reg_idx)); + + return ((head <= tail) ? tail : tail + ring->count) - head; +} + +static inline bool ngbe_check_tx_hang(struct ngbe_ring *tx_ring) +{ + u64 tx_done = ngbe_get_tx_completed(tx_ring); + u64 tx_done_old = tx_ring->tx_stats.tx_done_old; + u64 tx_pending = ngbe_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(__NGBE_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(__NGBE_HANG_CHECK_ARMED, &tx_ring->state); + + return false; +} + +/** + * ngbe_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + **/ +static void ngbe_tx_timeout(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + bool real_tx_hang = false; + int i; + u16 value = 0; + u32 value2 = 0; + u32 head, tail; + +#define TX_TIMEO_LIMIT 16000 + for (i = 0; i < adapter->num_tx_queues; i++) { + struct ngbe_ring *tx_ring = adapter->tx_ring[i]; + if (check_for_tx_hang(tx_ring) && ngbe_check_tx_hang(tx_ring)) { + real_tx_hang = true; + e_info(drv, "&&ngbe_tx_timeout:i=%d&&", i); + } + } + + pci_read_config_word(adapter->pdev, PCI_VENDOR_ID, &value); + ERROR_REPORT1(NGBE_ERROR_POLLING, "pci vendor id is 0x%x\n", value); + + pci_read_config_word(adapter->pdev, PCI_COMMAND, &value); + ERROR_REPORT1(NGBE_ERROR_POLLING, "pci command reg is 0x%x.\n", value); + + value2 = rd32(&adapter->hw, 0x10000); + ERROR_REPORT1(NGBE_ERROR_POLLING, "reg 0x10000 value is 0x%08x\n", value2); + value2 = rd32(&adapter->hw, 0x180d0); + ERROR_REPORT1(NGBE_ERROR_POLLING, "reg 0x180d0 value is 0x%08x\n", value2); + value2 = rd32(&adapter->hw, 0x180d4); + ERROR_REPORT1(NGBE_ERROR_POLLING, "reg 0x180d4 value is 0x%08x\n", value2); + value2 = rd32(&adapter->hw, 0x180d8); + ERROR_REPORT1(NGBE_ERROR_POLLING, "reg 0x180d8 value is 0x%08x\n", value2); + value2 = rd32(&adapter->hw, 0x180dc); + ERROR_REPORT1(NGBE_ERROR_POLLING, "reg 0x180dc value is 0x%08x\n", value2); + + for (i = 0; i < adapter->num_tx_queues; i++) { + head = rd32(&adapter->hw, NGBE_PX_TR_RP(adapter->tx_ring[i]->reg_idx)); + tail = rd32(&adapter->hw, NGBE_PX_TR_WP(adapter->tx_ring[i]->reg_idx)); + + ERROR_REPORT1(NGBE_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(NGBE_ERROR_POLLING, + "tx ring %d hw rp is 0x%x, wp is 0x%x\n", i, head, tail); + } + + value2 = rd32(&adapter->hw, NGBE_PX_IMS); + ERROR_REPORT1(NGBE_ERROR_POLLING, + "PX_IMS value is 0x%08x\n", value2); + + if (value2) { + ERROR_REPORT1(NGBE_ERROR_POLLING, "clear interrupt mask.\n"); + wr32(&adapter->hw, NGBE_PX_ICS, value2); + wr32(&adapter->hw, NGBE_PX_IMC, value2); + } + + if (adapter->hw.bus.lan_id == 0) { + ERROR_REPORT1(NGBE_ERROR_POLLING, "tx timeout. do pcie recovery.\n"); + adapter->flags2 |= NGBE_FLAG2_PCIE_NEED_RECOVER; + ngbe_service_event_schedule(adapter); + } else + wr32(&adapter->hw, NGBE_MIS_PF_SM, 1); +} + +/** + * ngbe_clean_tx_irq - Reclaim resources after transmit completes + * @q_vector: structure containing interrupt and ring information + * @tx_ring: tx ring to clean + **/ +static bool ngbe_clean_tx_irq(struct ngbe_q_vector *q_vector, + struct ngbe_ring *tx_ring) +{ + struct ngbe_adapter *adapter = q_vector->adapter; + struct ngbe_tx_buffer *tx_buffer; + union ngbe_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(__NGBE_DOWN, &adapter->state)) + return true; + + tx_buffer = &tx_ring->tx_buffer_info[i]; + tx_desc = NGBE_TX_DESC(tx_ring, i); + i -= tx_ring->count; + + do { + union ngbe_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(NGBE_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 = NGBE_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 = NGBE_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)) { + if (!ngbe_check_tx_hang(tx_ring)) { + adapter->hang_cnt = 0; + } else + adapter->hang_cnt++; + + if (adapter->hang_cnt >= 5) { + /* schedule immediate reset if we believe we hung */ + struct ngbe_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, NGBE_PX_TR_RP(tx_ring->reg_idx)), + rd32(hw, NGBE_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 == NGBE_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 |= NGBE_FLAG2_PCIE_NEED_RECOVER; + ngbe_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); + +#define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) + if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && + (ngbe_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(__NGBE_DOWN, &adapter->state)) { + netif_wake_subqueue(tx_ring->netdev, + tx_ring->queue_index); + ++tx_ring->tx_stats.restart_queue; + } + } + + return !!budget; +} + +#define NGBE_RSS_L4_TYPES_MASK \ + ((1ul << NGBE_RXD_RSSTYPE_IPV4_TCP) | \ + (1ul << NGBE_RXD_RSSTYPE_IPV4_UDP) | \ + (1ul << NGBE_RXD_RSSTYPE_IPV4_SCTP) | \ + (1ul << NGBE_RXD_RSSTYPE_IPV6_TCP) | \ + (1ul << NGBE_RXD_RSSTYPE_IPV6_UDP) | \ + (1ul << NGBE_RXD_RSSTYPE_IPV6_SCTP)) + +static inline void ngbe_rx_hash(struct ngbe_ring *ring, + union ngbe_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) & + NGBE_RXD_RSSTYPE_MASK; + + if (!rss_type) + return; + + skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), + (NGBE_RSS_L4_TYPES_MASK & (1ul << rss_type)) ? + PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3); +} + +/** + * ngbe_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 ngbe_rx_checksum(struct ngbe_ring *ring, + union ngbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + ngbe_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 ((ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_IPCS) && + ngbe_test_staterr(rx_desc, NGBE_RXD_ERR_IPE)) || + (ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_OUTERIPCS) && + ngbe_test_staterr(rx_desc, NGBE_RXD_ERR_OUTERIPER))) { + ring->rx_stats.csum_err++; + return; + } + + /* L4 checksum offload flag must set for the below code to work */ + if (!ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_L4CS)) + return; + + /*likely incorrect csum if IPv6 Dest Header found */ + if (dptype.prot != NGBE_DEC_PTYPE_PROT_SCTP && NGBE_RXD_IPV6EX(rx_desc)) + return; + + /* if L4 checksum error */ + if (ngbe_test_staterr(rx_desc, NGBE_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 >= NGBE_DEC_PTYPE_ETYPE_IG) { + skb->csum_level = 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 ngbe_alloc_mapped_skb(struct ngbe_ring *rx_ring, + struct ngbe_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 ngbe_alloc_mapped_page(struct ngbe_ring *rx_ring, + struct ngbe_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(ngbe_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, + ngbe_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, ngbe_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; +} + +/** + * ngbe_alloc_rx_buffers - Replace used receive buffers + * @rx_ring: ring to place buffers on + * @cleaned_count: number of buffers to replace + **/ +void ngbe_alloc_rx_buffers(struct ngbe_ring *rx_ring, u16 cleaned_count) +{ + union ngbe_rx_desc *rx_desc; + struct ngbe_rx_buffer *bi; + u16 i = rx_ring->next_to_use; + + /* nothing to do */ + if (!cleaned_count) + return; + + rx_desc = NGBE_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 (!ngbe_alloc_mapped_skb(rx_ring, bi)) + break; + rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); + } + + if (!ngbe_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 = NGBE_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 ngbe_get_hlen(struct ngbe_ring *rx_ring, + union ngbe_rx_desc *rx_desc) +{ + __le16 hdr_info = rx_desc->wb.lower.lo_dword.hs_rss.hdr_info; + u16 hlen = le16_to_cpu(hdr_info) & NGBE_RXD_HDRBUFLEN_MASK; + + UNREFERENCED_PARAMETER(rx_ring); + + if (hlen > (NGBE_RX_HDR_SIZE << NGBE_RXD_HDRBUFLEN_SHIFT)) + hlen = 0; + else + hlen >>= NGBE_RXD_HDRBUFLEN_SHIFT; + + return hlen; +} + +static void ngbe_rx_vlan(struct ngbe_ring *ring, + union ngbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + u8 idx = 0; + u16 ethertype; + + if ((ring->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) && + ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_VP)) { + idx = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & + NGBE_RXD_TPID_MASK) >> NGBE_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)); + } +} + +/** + * ngbe_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 ngbe_process_skb_fields(struct ngbe_ring *rx_ring, + union ngbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + u32 flags = rx_ring->q_vector->adapter->flags; + + ngbe_rx_hash(rx_ring, rx_desc, skb); + ngbe_rx_checksum(rx_ring, rx_desc, skb); + + if (unlikely(flags & NGBE_FLAG_RX_HWTSTAMP_ENABLED) && + unlikely(ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_TS))) { + ngbe_ptp_rx_hwtstamp(rx_ring->q_vector->adapter, skb); + rx_ring->last_rx_timestamp = jiffies; + } + + ngbe_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 ngbe_rx_skb(struct ngbe_q_vector *q_vector, + struct ngbe_ring *rx_ring, + union ngbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + napi_gro_receive(&q_vector->napi, skb); +} + +/** + * ngbe_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 ngbe_is_non_eop(struct ngbe_ring *rx_ring, + union ngbe_rx_desc *rx_desc, + struct sk_buff *skb) +{ + struct ngbe_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(NGBE_RX_DESC(rx_ring, ntc)); + + /* if we are the last buffer then there is nothing else to do */ + if (likely(ngbe_test_staterr(rx_desc, NGBE_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; +} + +/** + * ngbe_pull_tail - ngbe specific version of skb_pull_tail + * @skb: pointer to current skb being adjusted + * + * This function is an ngbe 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 ngbe_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, NGBE_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; +} + +/** + * ngbe_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 ngbe_dma_sync_frag(struct ngbe_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, + NGBE_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, + NGBE_CB(skb)->dma, + frag->page_offset, + skb_frag_size(frag), + DMA_FROM_DEVICE); + } + + /* if the page was released unmap it */ + if (unlikely(NGBE_CB(skb)->page_released)) { + dma_unmap_page_attrs(rx_ring->dev, NGBE_CB(skb)->dma, + ngbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE, + NGBE_RX_DMA_ATTR); + } +} + +/** + * ngbe_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 ngbe_cleanup_headers(struct ngbe_ring *rx_ring, + union ngbe_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(ngbe_test_staterr(rx_desc, + NGBE_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)) + ngbe_pull_tail(skb); + + /* if eth_skb_pad returns an error the skb was freed */ + if (eth_skb_pad(skb)) + return true; + + return false; +} + +/** + * ngbe_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 ngbe_reuse_rx_page(struct ngbe_ring *rx_ring, + struct ngbe_rx_buffer *old_buff) +{ + struct ngbe_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, + ngbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); +} + +static inline bool ngbe_page_is_reserved(struct page *page) +{ + return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); +} + +/** + * ngbe_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 ngbe_add_rx_frag(struct ngbe_ring *rx_ring, + struct ngbe_rx_buffer *rx_buffer, + union ngbe_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 = ngbe_rx_bufsz(rx_ring); +#else + unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); + unsigned int last_offset = ngbe_rx_pg_size(rx_ring) - + ngbe_rx_bufsz(rx_ring); +#endif + + if ((size <= NGBE_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(!ngbe_page_is_reserved(page))) + return true; + + /* this page cannot be reused so discard it */ + __free_pages(page, ngbe_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(ngbe_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 *ngbe_fetch_rx_buffer(struct ngbe_ring *rx_ring, + union ngbe_rx_desc *rx_desc) +{ + struct ngbe_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, + NGBE_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(ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_EOP))) + goto dma_sync; + + NGBE_CB(skb)->dma = rx_buffer->page_dma; + } else { + if (ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_EOP)) + ngbe_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, + ngbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); + + rx_buffer->skb = NULL; + } + + /* pull page into skb */ + if (ngbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { + /* hand second half of page back to the ring */ + ngbe_reuse_rx_page(rx_ring, rx_buffer); + } else if (NGBE_CB(skb)->dma == rx_buffer->page_dma) { + /* the page has been released from the ring */ + NGBE_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, + ngbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE); + } + + /* clear contents of buffer_info */ + rx_buffer->page = NULL; + + return skb; +} + +static struct sk_buff *ngbe_fetch_rx_buffer_hs(struct ngbe_ring *rx_ring, + union ngbe_rx_desc *rx_desc) +{ + struct ngbe_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 = ngbe_get_hlen(rx_ring, rx_desc); + if (hdr_len > 0) { + __skb_put(skb, hdr_len); + NGBE_CB(skb)->dma_released = true; + NGBE_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(ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_EOP))) + goto dma_sync; + NGBE_CB(skb)->dma = rx_buffer->page_dma; + goto add_frag; + } + } + + if (ngbe_test_staterr(rx_desc, NGBE_RXD_STAT_EOP)) { + if (skb_headlen(skb)) { + if (NGBE_CB(skb)->dma_released == true) { + dma_unmap_single(rx_ring->dev, + NGBE_CB(skb)->dma, + rx_ring->rx_buf_len, + DMA_FROM_DEVICE); + NGBE_CB(skb)->dma = 0; + NGBE_CB(skb)->dma_released = false; + } + } else + ngbe_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, + ngbe_rx_bufsz(rx_ring), + DMA_FROM_DEVICE); +add_frag: + /* pull page into skb */ + if (ngbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { + /* hand second half of page back to the ring */ + ngbe_reuse_rx_page(rx_ring, rx_buffer); + } else if (NGBE_CB(skb)->dma == rx_buffer->page_dma) { + /* the page has been released from the ring */ + NGBE_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, + ngbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE); + } + + /* clear contents of buffer_info */ + rx_buffer->page = NULL; + + return skb; +} + +/** + * ngbe_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 ngbe_clean_rx_irq(struct ngbe_q_vector *q_vector, + struct ngbe_ring *rx_ring, + int budget) +{ + unsigned int total_rx_bytes = 0, total_rx_packets = 0; + u16 cleaned_count = ngbe_desc_unused(rx_ring); + + do { + union ngbe_rx_desc *rx_desc; + struct sk_buff *skb; + + /* return some buffers to hardware, one at a time is too slow */ + if (cleaned_count >= NGBE_RX_BUFFER_WRITE) { + ngbe_alloc_rx_buffers(rx_ring, cleaned_count); + cleaned_count = 0; + } + + rx_desc = NGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); + + if (!ngbe_test_staterr(rx_desc, NGBE_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 = ngbe_fetch_rx_buffer_hs(rx_ring, rx_desc); + else + skb = ngbe_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 (ngbe_is_non_eop(rx_ring, rx_desc, skb)) + continue; + + /* verify the packet layout is correct */ + if (ngbe_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 */ + ngbe_process_skb_fields(rx_ring, rx_desc, skb); + + ngbe_rx_skb(q_vector, rx_ring, rx_desc, 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; +} + +/** + * ngbe_configure_msix - Configure MSI-X hardware + * @adapter: board private structure + * + * ngbe_configure_msix sets up the hardware to properly generate MSI-X + * interrupts. + **/ +static void ngbe_configure_msix(struct ngbe_adapter *adapter) +{ + u16 v_idx; + u32 i; + u32 eitrsel = 0; + + /* Populate MSIX to EITR Select */ + if (!(adapter->flags & NGBE_FLAG_VMDQ_ENABLED)) + wr32(&adapter->hw, NGBE_PX_ITRSEL, eitrsel); + else { + for (i = 0; i < adapter->num_vfs; i++) { + eitrsel |= 1 << i; + } + wr32(&adapter->hw, NGBE_PX_ITRSEL, eitrsel); + } + + /* + * 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 ngbe_q_vector *q_vector = adapter->q_vector[v_idx]; + struct ngbe_ring *ring; + + ngbe_for_each_ring(ring, q_vector->rx) + ngbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); + + ngbe_for_each_ring(ring, q_vector->tx) + ngbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); + + ngbe_write_eitr(q_vector); + } + + /* misc ivar from seq 1 to seq 8 */ + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) + v_idx += adapter->ring_feature[RING_F_VMDQ].offset; + + ngbe_set_ivar(adapter, -1, 0, v_idx); + wr32(&adapter->hw, NGBE_PX_ITR(v_idx), 1950); +} + +enum latency_range { + lowest_latency = 0, + low_latency = 1, + bulk_latency = 2, + latency_invalid = 255 +}; + +/** + * ngbe_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 ngbe_write_eitr(struct ngbe_q_vector *q_vector) +{ + struct ngbe_adapter *adapter = q_vector->adapter; + struct ngbe_hw *hw = &adapter->hw; + int v_idx = q_vector->v_idx; + u32 itr_reg = q_vector->itr & NGBE_MAX_EITR; + + itr_reg |= NGBE_PX_ITR_CNT_WDIS; + + wr32(hw, NGBE_PX_ITR(v_idx), itr_reg); +} + +/** + * ngbe_check_overtemp_subtask - check for over temperature + * @adapter: pointer to adapter + **/ +static void ngbe_check_overtemp_subtask(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 eicr = adapter->interrupt_event; + s32 temp_state; + + if (test_bit(__NGBE_DOWN, &adapter->state)) + return; + if (!(adapter->flags2 & NGBE_FLAG2_TEMP_SENSOR_CAPABLE)) + return; + if (!(adapter->flags2 & NGBE_FLAG2_TEMP_SENSOR_EVENT)) + return; + + adapter->flags2 &= ~NGBE_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 & NGBE_PX_MISC_IC_OVER_HEAT)) + return; + + temp_state = ngbe_phy_check_overtemp(hw); + if (!temp_state || temp_state == NGBE_NOT_IMPLEMENTED) + return; + + if (temp_state == NGBE_ERR_UNDERTEMP && + test_bit(__NGBE_HANGING, &adapter->state)) { + e_crit(drv, "%s\n", ngbe_underheat_msg); + wr32m(&adapter->hw, NGBE_RDB_PB_CTL, + NGBE_RDB_PB_CTL_PBEN, NGBE_RDB_PB_CTL_PBEN); + netif_carrier_on(adapter->netdev); + clear_bit(__NGBE_HANGING, &adapter->state); + } else if (temp_state == NGBE_ERR_OVERTEMP && + !test_and_set_bit(__NGBE_HANGING, &adapter->state)) { + e_crit(drv, "%s\n", ngbe_overheat_msg); + netif_carrier_off(adapter->netdev); + wr32m(&adapter->hw, NGBE_RDB_PB_CTL, + NGBE_RDB_PB_CTL_PBEN, 0); + } + + adapter->interrupt_event = 0; +} + +static void ngbe_check_overtemp_event(struct ngbe_adapter *adapter, u32 eicr) +{ + if (!(adapter->flags2 & NGBE_FLAG2_TEMP_SENSOR_CAPABLE)) + return; + + if (!(eicr & NGBE_PX_MISC_IC_OVER_HEAT)) + return; + if (!test_bit(__NGBE_DOWN, &adapter->state)) { + adapter->interrupt_event = eicr; + adapter->flags2 |= NGBE_FLAG2_TEMP_SENSOR_EVENT; + ngbe_service_event_schedule(adapter); + } +} + + +static void ngbe_handle_phy_event(struct ngbe_hw *hw) +{ + struct ngbe_adapter *adapter = hw->back; + u32 reg; + + reg = rd32(hw, NGBE_GPIO_INTSTATUS); + wr32(hw, NGBE_GPIO_EOI, reg); + TCALL(hw, phy.ops.check_event); + adapter->lsc_int++; + adapter->link_check_timeout = jiffies; + if (!test_bit(__NGBE_DOWN, &adapter->state)) { + ngbe_service_event_schedule(adapter); + } +} + +/** + * ngbe_irq_enable - Enable default interrupt generation settings + * @adapter: board private structure + **/ +void ngbe_irq_enable(struct ngbe_adapter *adapter, bool queues, bool flush) +{ + u32 mask = 0; + + /* enable misc interrupt */ + mask = NGBE_PX_MISC_IEN_MASK; + + if (adapter->flags2 & NGBE_FLAG2_TEMP_SENSOR_CAPABLE) + mask |= NGBE_PX_MISC_IEN_OVER_HEAT; + + mask |= NGBE_PX_MISC_IEN_TIMESYNC; + + wr32(&adapter->hw, NGBE_GPIO_DDR, 0x1); + wr32(&adapter->hw, NGBE_GPIO_INTEN, 0x3); + wr32(&adapter->hw, NGBE_GPIO_INTTYPE_LEVEL, 0x0); + if (adapter->hw.phy.type == ngbe_phy_yt8521s_sfi) + wr32(&adapter->hw, NGBE_GPIO_POLARITY, 0x0); + else + wr32(&adapter->hw, NGBE_GPIO_POLARITY, 0x3); + + if (adapter->hw.phy.type == ngbe_phy_yt8521s_sfi) + mask |= NGBE_PX_MISC_IEN_GPIO; + + wr32(&adapter->hw, NGBE_PX_MISC_IEN, mask); + + /* unmask interrupt */ + if (queues) + ngbe_intr_enable(&adapter->hw, NGBE_INTR_ALL); + else { + if (!(adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP)) + ngbe_intr_enable(&adapter->hw, NGBE_INTR_MISC(adapter)); + else + ngbe_intr_enable(&adapter->hw, NGBE_INTR_MISC_VMDQ(adapter)); + } + + /* flush configuration */ + if (flush) + NGBE_WRITE_FLUSH(&adapter->hw); +} + +static irqreturn_t ngbe_msix_other(int __always_unused irq, void *data) +{ + struct ngbe_adapter *adapter = data; + struct ngbe_hw *hw = &adapter->hw; + u32 eicr; + u32 ecc; + u16 pci_val = 0; + + eicr = ngbe_misc_isb(adapter, NGBE_ISB_MISC); + if (eicr & (NGBE_PX_MISC_IC_PHY | NGBE_PX_MISC_IC_GPIO)) + ngbe_handle_phy_event(hw); + + if (eicr & NGBE_PX_MISC_IC_VF_MBOX) + ngbe_msg_task(adapter); + + if (eicr & NGBE_PX_MISC_IC_PCIE_REQ_ERR) { + ERROR_REPORT1(NGBE_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(NGBE_ERROR_POLLING, "pci vendor id is 0x%x\n", pci_val); + + pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_val); + ERROR_REPORT1(NGBE_ERROR_POLLING, "pci command reg is 0x%x.\n", pci_val); + + if (hw->bus.lan_id == 0) { + adapter->flags2 |= NGBE_FLAG2_PCIE_NEED_RECOVER; + ngbe_service_event_schedule(adapter); + } else + wr32(&adapter->hw, NGBE_MIS_PF_SM, 1); + } + + if (eicr & NGBE_PX_MISC_IC_INT_ERR) { + e_info(link, "Received unrecoverable ECC Err," + "initiating reset.\n"); + ecc = rd32(hw, NGBE_MIS_ST); + e_info(link, "ecc error status is 0x%08x\n", ecc); + if (((ecc & NGBE_MIS_ST_LAN0_ECC) && (hw->bus.lan_id == 0)) || + ((ecc & NGBE_MIS_ST_LAN1_ECC) && (hw->bus.lan_id == 1))) + adapter->flags2 |= NGBE_FLAG2_DEV_RESET_REQUESTED; + + ngbe_service_event_schedule(adapter); + } + if (eicr & NGBE_PX_MISC_IC_DEV_RST) { + adapter->flags2 |= NGBE_FLAG2_RESET_INTR_RECEIVED; + ngbe_service_event_schedule(adapter); + } + if ((eicr & NGBE_PX_MISC_IC_STALL) || + (eicr & NGBE_PX_MISC_IC_ETH_EVENT)) { + adapter->flags2 |= NGBE_FLAG2_PF_RESET_REQUESTED; + ngbe_service_event_schedule(adapter); + } + + ngbe_check_overtemp_event(adapter, eicr); + + if (unlikely(eicr & NGBE_PX_MISC_IC_TIMESYNC)) + ngbe_ptp_check_pps_event(adapter); + + /* re-enable the original interrupt state, no lsc, no queues */ + if (!test_bit(__NGBE_DOWN, &adapter->state)) + ngbe_irq_enable(adapter, false, false); + + return IRQ_HANDLED; +} + +static irqreturn_t ngbe_msix_clean_rings(int __always_unused irq, void *data) +{ + struct ngbe_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; +} + +/** + * ngbe_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 ngbe_poll(struct napi_struct *napi, int budget) +{ + struct ngbe_q_vector *q_vector = + container_of(napi, struct ngbe_q_vector, napi); + struct ngbe_adapter *adapter = q_vector->adapter; + struct ngbe_ring *ring; + int per_ring_budget; + bool clean_complete = true; + + ngbe_for_each_ring(ring, q_vector->tx) { + if (!ngbe_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; + + ngbe_for_each_ring(ring, q_vector->rx) { + int cleaned = ngbe_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 (!test_bit(__NGBE_DOWN, &adapter->state)) + ngbe_intr_enable(&adapter->hw, + NGBE_INTR_Q(q_vector->v_idx)); + + return 0; +} + +/** + * ngbe_request_msix_irqs - Initialize MSI-X interrupts + * @adapter: board private structure + * + * ngbe_request_msix_irqs allocates MSI-X vectors and requests + * interrupts from the kernel. + **/ +static int ngbe_request_msix_irqs(struct ngbe_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 ngbe_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, &ngbe_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 (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) + vector += adapter->ring_feature[RING_F_VMDQ].offset; + + err = request_irq(adapter->msix_entries[vector].vector, + ngbe_msix_other, 0, netdev->name, adapter); + + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) + vector -= adapter->ring_feature[RING_F_VMDQ].offset; + + 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 &= ~NGBE_FLAG_MSIX_ENABLED; + pci_disable_msix(adapter->pdev); + kfree(adapter->msix_entries); + adapter->msix_entries = NULL; + return err; +} + +/** + * ngbe_intr - legacy mode Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ +static irqreturn_t ngbe_intr(int __always_unused irq, void *data) +{ + struct ngbe_adapter *adapter = data; + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_q_vector *q_vector = adapter->q_vector[0]; + u32 eicr; + u32 eicr_misc; + u32 ecc = 0; + + eicr = ngbe_misc_isb(adapter, NGBE_ISB_VEC0); + if (!eicr) { + /* + * shared interrupt alert! + * the interrupt that we masked before the EICR read. + */ + if (!test_bit(__NGBE_DOWN, &adapter->state)) + ngbe_irq_enable(adapter, true, true); + return IRQ_NONE; /* Not our interrupt */ + } + adapter->isb_mem[NGBE_ISB_VEC0] = 0; + if (!(adapter->flags & NGBE_FLAG_MSI_ENABLED)) + wr32(&(adapter->hw), NGBE_PX_INTA, 1); + + eicr_misc = ngbe_misc_isb(adapter, NGBE_ISB_MISC); + if (eicr_misc & (NGBE_PX_MISC_IC_PHY | NGBE_PX_MISC_IC_GPIO)) + ngbe_handle_phy_event(hw); + + if (eicr_misc & NGBE_PX_MISC_IC_INT_ERR) { + e_info(link, "Received unrecoverable ECC Err," + "initiating reset.\n"); + ecc = rd32(hw, NGBE_MIS_ST); + e_info(link, "ecc error status is 0x%08x\n", ecc); + adapter->flags2 |= NGBE_FLAG2_DEV_RESET_REQUESTED; + ngbe_service_event_schedule(adapter); + } + + if (eicr_misc & NGBE_PX_MISC_IC_DEV_RST) { + adapter->flags2 |= NGBE_FLAG2_RESET_INTR_RECEIVED; + ngbe_service_event_schedule(adapter); + } + ngbe_check_overtemp_event(adapter, eicr_misc); + + if (unlikely(eicr_misc & NGBE_PX_MISC_IC_TIMESYNC)) + ngbe_ptp_check_pps_event(adapter); + + adapter->isb_mem[NGBE_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. + * ngbe_poll will re-enable the queue interrupts + */ + if (!test_bit(__NGBE_DOWN, &adapter->state)) + ngbe_irq_enable(adapter, false, false); + + return IRQ_HANDLED; +} + +/** + * ngbe_request_irq - initialize interrupts + * @adapter: board private structure + * + * Attempts to configure interrupts using the best available + * capabilities of the hardware and kernel. + **/ +static int ngbe_request_irq(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int err; + + if (adapter->flags & NGBE_FLAG_MSIX_ENABLED) + err = ngbe_request_msix_irqs(adapter); + else if (adapter->flags & NGBE_FLAG_MSI_ENABLED) + err = request_irq(adapter->pdev->irq, &ngbe_intr, 0, + netdev->name, adapter); + else + err = request_irq(adapter->pdev->irq, &ngbe_intr, IRQF_SHARED, + netdev->name, adapter); + + if (err) + e_err(probe, "request_irq failed, Error %d\n", err); + + return err; +} + +static void ngbe_free_irq(struct ngbe_adapter *adapter) +{ + int vector; + + if (!(adapter->flags & NGBE_FLAG_MSIX_ENABLED)) { + free_irq(adapter->pdev->irq, adapter); + return; + } + + for (vector = 0; vector < adapter->num_q_vectors; vector++) { + struct ngbe_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); + } + + if (adapter->flags2 & NGBE_FLAG2_SRIOV_MISC_IRQ_REMAP) { + free_irq( + adapter->msix_entries[vector + adapter->ring_feature[RING_F_VMDQ].offset].vector, + adapter); + } else + free_irq(adapter->msix_entries[vector++].vector, adapter); +} + +/** + * ngbe_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ +void ngbe_irq_disable(struct ngbe_adapter *adapter) +{ + wr32(&adapter->hw, NGBE_PX_MISC_IEN, 0); + ngbe_intr_disable(&adapter->hw, NGBE_INTR_ALL); + + NGBE_WRITE_FLUSH(&adapter->hw); + if (adapter->flags & NGBE_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); + } +} + +/** + * ngbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts + * + **/ +static void ngbe_configure_msi_and_legacy(struct ngbe_adapter *adapter) +{ + struct ngbe_q_vector *q_vector = adapter->q_vector[0]; + struct ngbe_ring *ring; + + ngbe_write_eitr(q_vector); + + ngbe_for_each_ring(ring, q_vector->rx) + ngbe_set_ivar(adapter, 0, ring->reg_idx, 0); + + ngbe_for_each_ring(ring, q_vector->tx) + ngbe_set_ivar(adapter, 1, ring->reg_idx, 0); + + ngbe_set_ivar(adapter, -1, 0, 1); + + e_info(hw, "Legacy interrupt IVAR setup done\n"); +} + +/** + * ngbe_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 ngbe_configure_tx_ring(struct ngbe_adapter *adapter, + struct ngbe_ring *ring) +{ + struct ngbe_hw *hw = &adapter->hw; + u64 tdba = ring->dma; + int wait_loop = 10; + u32 txdctl = NGBE_PX_TR_CFG_ENABLE; + u8 reg_idx = ring->reg_idx; + + /* disable queue to avoid issues while updating state */ + wr32(hw, NGBE_PX_TR_CFG(reg_idx), NGBE_PX_TR_CFG_SWFLSH); + NGBE_WRITE_FLUSH(hw); + + wr32(hw, NGBE_PX_TR_BAL(reg_idx), tdba & DMA_BIT_MASK(32)); + wr32(hw, NGBE_PX_TR_BAH(reg_idx), tdba >> 32); + + /* reset head and tail pointers */ + wr32(hw, NGBE_PX_TR_RP(reg_idx), 0); + wr32(hw, NGBE_PX_TR_WP(reg_idx), 0); + ring->tail = adapter->io_addr + NGBE_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 |= NGBE_RING_SIZE(ring) << NGBE_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 << NGBE_PX_TR_CFG_WTHRESH_SHIFT; + /* + * Setting PTHRESH to 32 both improves performance + * and avoids a TX hang with DFP enabled + */ + + /* initialize XPS */ + if (!test_and_set_bit(__NGBE_TX_XPS_INIT_DONE, &ring->state)) { + struct ngbe_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(__NGBE_HANG_CHECK_ARMED, &ring->state); + + /* enable queue */ + wr32(hw, NGBE_PX_TR_CFG(reg_idx), txdctl); + + /* poll to verify queue is enabled */ + do { + msleep(1); + txdctl = rd32(hw, NGBE_PX_TR_CFG(reg_idx)); + } while (--wait_loop && !(txdctl & NGBE_PX_TR_CFG_ENABLE)); + if (!wait_loop) + e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); +} + +/** + * ngbe_configure_tx - Configure Transmit Unit after Reset + * @adapter: board private structure + * + * Configure the Tx unit of the MAC after a reset. + **/ +static void ngbe_configure_tx(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 i; + + /* TDM_CTL.TE must be before Tx queues are enabled */ + wr32m(hw, NGBE_TDM_CTL, + NGBE_TDM_CTL_TE, NGBE_TDM_CTL_TE); + + /* Setup the HW Tx Head and Tail descriptor pointers */ + for (i = 0; i < adapter->num_tx_queues; i++) + ngbe_configure_tx_ring(adapter, adapter->tx_ring[i]); + + wr32m(hw, NGBE_TSEC_BUF_AE, 0x3FF, 0x10); + wr32m(hw, NGBE_TSEC_CTL, 0x2, 0); + + wr32m(hw, NGBE_TSEC_CTL, 0x1, 1); + + /* enable mac transmitter */ + wr32m(hw, NGBE_MAC_TX_CFG, + NGBE_MAC_TX_CFG_TE, NGBE_MAC_TX_CFG_TE); +} + +static void ngbe_enable_rx_drop(struct ngbe_adapter *adapter, + struct ngbe_ring *ring) +{ + struct ngbe_hw *hw = &adapter->hw; + u16 reg_idx = ring->reg_idx; + + u32 srrctl = rd32(hw, NGBE_PX_RR_CFG(reg_idx)); + + srrctl |= NGBE_PX_RR_CFG_DROP_EN; + + wr32(hw, NGBE_PX_RR_CFG(reg_idx), srrctl); +} + +static void ngbe_disable_rx_drop(struct ngbe_adapter *adapter, + struct ngbe_ring *ring) +{ + struct ngbe_hw *hw = &adapter->hw; + u16 reg_idx = ring->reg_idx; + + u32 srrctl = rd32(hw, NGBE_PX_RR_CFG(reg_idx)); + + srrctl &= ~NGBE_PX_RR_CFG_DROP_EN; + + wr32(hw, NGBE_PX_RR_CFG(reg_idx), srrctl); +} + +void ngbe_set_rx_drop_en(struct ngbe_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 & ngbe_fc_tx_pause))) { + for (i = 0; i < adapter->num_rx_queues; i++) + ngbe_enable_rx_drop(adapter, adapter->rx_ring[i]); + } else { + for (i = 0; i < adapter->num_rx_queues; i++) + ngbe_disable_rx_drop(adapter, adapter->rx_ring[i]); + } +} + +static void ngbe_configure_srrctl(struct ngbe_adapter *adapter, + struct ngbe_ring *rx_ring) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 srrctl; + u16 reg_idx = rx_ring->reg_idx; + + srrctl = rd32m(hw, NGBE_PX_RR_CFG(reg_idx), + ~(NGBE_PX_RR_CFG_RR_HDR_SZ | + NGBE_PX_RR_CFG_RR_BUF_SZ | + NGBE_PX_RR_CFG_SPLIT_MODE)); + + /* configure header buffer length, needed for RSC */ + srrctl |= NGBE_RX_HDR_SIZE << NGBE_PX_RR_CFG_BSIZEHDRSIZE_SHIFT; + + /* configure the packet buffer length */ + srrctl |= ngbe_rx_bufsz(rx_ring) >> NGBE_PX_RR_CFG_BSIZEPKT_SHIFT; + if (ring_is_hs_enabled(rx_ring)) + srrctl |= NGBE_PX_RR_CFG_SPLIT_MODE; + + wr32(hw, NGBE_PX_RR_CFG(reg_idx), srrctl); +} + +/** + * Return a number of entries in the RSS indirection table + * + * @adapter: device handle + * + */ +u32 ngbe_rss_indir_tbl_entries(struct ngbe_adapter *adapter) +{ + if (adapter->flags & NGBE_FLAG_SRIOV_ENABLED) + return 64; + else + 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 ngbe_store_reta(struct ngbe_adapter *adapter) +{ + u32 i, reta_entries = ngbe_rss_indir_tbl_entries(adapter); + struct ngbe_hw *hw = &adapter->hw; + u32 reta = 0; + u8 *indir_tbl = adapter->rss_indir_tbl; + + /* 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, NGBE_RDB_RSSTBL(i >> 2), reta); + reta = 0; + } + } +} + +static void ngbe_setup_reta(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 i, j; + u32 reta_entries = ngbe_rss_indir_tbl_entries(adapter); + u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; + + /* + * Program table for at least 2 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 & NGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) + rss_i = 1; + + /* Fill out hash function seeds */ + for (i = 0; i < 10; i++) + wr32(hw, NGBE_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; + } + + ngbe_store_reta(adapter); +} + +static void ngbe_setup_mrqc(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 rss_field = 0; + + /* VT, and RSS do not coexist at the same time */ + if (adapter->flags & NGBE_FLAG_VMDQ_ENABLED) { + return; + } + + /* Disable indicating checksum in descriptor, enables RSS hash */ + wr32m(hw, NGBE_PSR_CTL, + NGBE_PSR_CTL_PCSD, NGBE_PSR_CTL_PCSD); + + /* Perform hash on these packet types */ + rss_field = NGBE_RDB_RA_CTL_RSS_IPV4 | + NGBE_RDB_RA_CTL_RSS_IPV4_TCP | + NGBE_RDB_RA_CTL_RSS_IPV6 | + NGBE_RDB_RA_CTL_RSS_IPV6_TCP; + + if (adapter->flags2 & NGBE_FLAG2_RSS_FIELD_IPV4_UDP) + rss_field |= NGBE_RDB_RA_CTL_RSS_IPV4_UDP; + if (adapter->flags2 & NGBE_FLAG2_RSS_FIELD_IPV6_UDP) + rss_field |= NGBE_RDB_RA_CTL_RSS_IPV6_UDP; + + netdev_rss_key_fill(adapter->rss_key, sizeof(adapter->rss_key)); + + ngbe_setup_reta(adapter); + + if (adapter->flags2 & NGBE_FLAG2_RSS_ENABLED) + rss_field |= NGBE_RDB_RA_CTL_RSS_EN; + wr32(hw, NGBE_RDB_RA_CTL, rss_field); +} + +static void ngbe_rx_desc_queue_enable(struct ngbe_adapter *adapter, + struct ngbe_ring *ring) +{ + struct ngbe_hw *hw = &adapter->hw; + int wait_loop = NGBE_MAX_RX_DESC_POLL; + u32 rxdctl; + u8 reg_idx = ring->reg_idx; + + if (NGBE_REMOVED(hw->hw_addr)) + return; + + do { + msleep(1); + rxdctl = rd32(hw, NGBE_PX_RR_CFG(reg_idx)); + } while (--wait_loop && !(rxdctl & NGBE_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 rx ring/queue */ +void ngbe_disable_rx_queue(struct ngbe_adapter *adapter, + struct ngbe_ring *ring) +{ + struct ngbe_hw *hw = &adapter->hw; + int wait_loop = NGBE_MAX_RX_DESC_POLL; + u32 rxdctl; + u8 reg_idx = ring->reg_idx; + + if (NGBE_REMOVED(hw->hw_addr)) + return; + + /* write value back with RXDCTL.ENABLE bit cleared */ + wr32m(hw, NGBE_PX_RR_CFG(reg_idx), + NGBE_PX_RR_CFG_RR_EN, 0); + + /* hardware may take up to 100us to actually disable rx queue */ + do { + udelay(10); + rxdctl = rd32(hw, NGBE_PX_RR_CFG(reg_idx)); + } while (--wait_loop && (rxdctl & NGBE_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 ngbe_configure_rx_ring(struct ngbe_adapter *adapter, + struct ngbe_ring *ring) +{ + struct ngbe_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, NGBE_PX_RR_CFG(reg_idx)); + ngbe_disable_rx_queue(adapter, ring); + + wr32(hw, NGBE_PX_RR_BAL(reg_idx), rdba & DMA_BIT_MASK(32)); + wr32(hw, NGBE_PX_RR_BAH(reg_idx), rdba >> 32); + + if (ring->count == NGBE_MAX_RXD) + rxdctl |= 0 << NGBE_PX_RR_CFG_RR_SIZE_SHIFT; + else + rxdctl |= (ring->count / 128) << NGBE_PX_RR_CFG_RR_SIZE_SHIFT; + + rxdctl |= 0x1 << NGBE_PX_RR_CFG_RR_THER_SHIFT; + wr32(hw, NGBE_PX_RR_CFG(reg_idx), rxdctl); + + /* reset head and tail pointers */ + wr32(hw, NGBE_PX_RR_RP(reg_idx), 0); + wr32(hw, NGBE_PX_RR_WP(reg_idx), 0); + ring->tail = adapter->io_addr + NGBE_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; + + ngbe_configure_srrctl(adapter, ring); + + /* enable receive descriptor ring */ + wr32m(hw, NGBE_PX_RR_CFG(reg_idx), + NGBE_PX_RR_CFG_RR_EN, NGBE_PX_RR_CFG_RR_EN); + + ngbe_rx_desc_queue_enable(adapter, ring); + ngbe_alloc_rx_buffers(ring, ngbe_desc_unused(ring)); +} + +static void ngbe_setup_psrtype(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int pool; + + /* PSRTYPE must be initialized in adapters */ + u32 psrtype = NGBE_RDB_PL_CFG_L4HDR | + NGBE_RDB_PL_CFG_L3HDR | + NGBE_RDB_PL_CFG_L2HDR | + NGBE_RDB_PL_CFG_TUN_OUTER_L2HDR | + NGBE_RDB_PL_CFG_TUN_TUNHDR; + + for_each_set_bit(pool, &adapter->fwd_bitmask, NGBE_MAX_MACVLANS) { + wr32(hw, NGBE_RDB_PL_CFG(VMDQ_P(pool)), psrtype); + } +} + +/** + * ngbe_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 ngbe_configure_bridge_mode(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + + if (adapter->flags & NGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE) { + /* disable Tx loopback, rely on switch hairpin mode */ + wr32m(hw, NGBE_PSR_CTL, + NGBE_PSR_CTL_SW_EN, 0); + } else { + /* enable Tx loopback for internal VF/PF communication */ + wr32m(hw, NGBE_PSR_CTL, + NGBE_PSR_CTL_SW_EN, NGBE_PSR_CTL_SW_EN); + } +} + +static void ngbe_configure_virtualization(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 i; + u8 vfe = 0; + + if (!(adapter->flags & NGBE_FLAG_VMDQ_ENABLED)) + return; + + wr32m(hw, NGBE_PSR_VM_CTL, + NGBE_PSR_VM_CTL_POOL_MASK | + NGBE_PSR_VM_CTL_REPLEN, + VMDQ_P(0) << NGBE_PSR_VM_CTL_POOL_SHIFT | + NGBE_PSR_VM_CTL_REPLEN); + + for_each_set_bit(i, &adapter->fwd_bitmask, NGBE_MAX_MACVLANS) { + /* accept untagged packets until a vlan tag is + * specifically set for the VMDQ queue/pool + */ + wr32m(hw, NGBE_PSR_VM_L2CTL(i), + NGBE_PSR_VM_L2CTL_AUPE, NGBE_PSR_VM_L2CTL_AUPE); + } + + vfe = 1 << (VMDQ_P(0)); + /* Enable only the PF pools for Tx/Rx */ + wr32(hw, NGBE_RDM_POOL_RE, vfe); + wr32(hw, NGBE_TDM_POOL_TE, vfe); + + if (!(adapter->flags & NGBE_FLAG_SRIOV_ENABLED)) + return; + + /* configure default bridge settings */ + ngbe_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, + NGBE_PSR_ETYPE_SWC(NGBE_PSR_ETYPE_SWC_FILTER_LLDP), + (NGBE_PSR_ETYPE_SWC_FILTER_EN | /* enable filter */ + NGBE_PSR_ETYPE_SWC_TX_ANTISPOOF | + NGBE_ETH_P_LLDP)); /* LLDP eth procotol type */ + + wr32(hw, + NGBE_PSR_ETYPE_SWC(NGBE_PSR_ETYPE_SWC_FILTER_FC), + (NGBE_PSR_ETYPE_SWC_FILTER_EN | + NGBE_PSR_ETYPE_SWC_TX_ANTISPOOF | + ETH_P_PAUSE)); + } + + for (i = 0; i < adapter->num_vfs; i++) { + if (!adapter->vfinfo[i].spoofchk_enabled) + ngbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); + /* enable ethertype anti spoofing if hw supports it */ + TCALL(hw, mac.ops.set_ethertype_anti_spoofing, true, i); + } +} + +static void ngbe_set_rx_buffer_len(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; + struct ngbe_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, NGBE_PSR_MAX_SZ); + if (max_frame != mhadd) { + wr32(hw, NGBE_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 & NGBE_FLAG_RX_HS_ENABLED) { + rx_ring->rx_buf_len = NGBE_RX_HDR_SIZE; + set_ring_hs_enabled(rx_ring); + } else + clear_ring_hs_enabled(rx_ring); + } +} + +/** + * ngbe_configure_rx - Configure Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Rx unit of the MAC after a reset. + **/ +static void ngbe_configure_rx(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int i; + u32 rxctrl; + + /* disable receives while setting up the descriptors */ + TCALL(hw, mac.ops.disable_rx); + + ngbe_setup_psrtype(adapter); + + /* enable hw crc stripping */ + wr32m(hw, NGBE_RSEC_CTL, + NGBE_RSEC_CTL_CRC_STRIP, NGBE_RSEC_CTL_CRC_STRIP); + + /* Program registers for the distribution of queues */ + ngbe_setup_mrqc(adapter); + + /* set_rx_buffer_len must be called before ring initialization */ + ngbe_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++) + ngbe_configure_rx_ring(adapter, adapter->rx_ring[i]); + + rxctrl = rd32(hw, NGBE_RDB_PB_CTL); + + /* enable all receives */ + rxctrl |= NGBE_RDB_PB_CTL_PBEN; + TCALL(hw, mac.ops.enable_rx_dma, rxctrl); +} + +static int ngbe_vlan_rx_add_vid(struct net_device *netdev, + __always_unused __be16 proto, u16 vid) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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 & NGBE_FLAG_VMDQ_ENABLED) { + int i; + /* enable vlan id for all pools */ + for_each_set_bit(i, &adapter->fwd_bitmask, + NGBE_MAX_MACVLANS) + TCALL(hw, mac.ops.set_vfta, vid, + VMDQ_P(i), true); + } + } + + return 0; +} + +static int ngbe_vlan_rx_kill_vid(struct net_device *netdev, + __always_unused __be16 proto, u16 vid) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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 & NGBE_FLAG_VMDQ_ENABLED) { + int i; + /* remove vlan id from all pools */ + for_each_set_bit(i, &adapter->fwd_bitmask, + NGBE_MAX_MACVLANS) + TCALL(hw, mac.ops.set_vfta, vid, + VMDQ_P(i), false); + } + } + + clear_bit(vid, adapter->active_vlans); + return 0; +} + +/** + * ngbe_vlan_strip_disable - helper to disable vlan tag stripping + * @adapter: driver data + */ +void ngbe_vlan_strip_disable(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int i, j; + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct ngbe_ring *ring = adapter->rx_ring[i]; + if (ring->accel) + continue; + j = ring->reg_idx; + wr32m(hw, NGBE_PX_RR_CFG(j), + NGBE_PX_RR_CFG_VLAN, 0); + } +} + +/** + * ngbe_vlan_strip_enable - helper to enable vlan tag stripping + * @adapter: driver data + */ +void ngbe_vlan_strip_enable(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int i, j; + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct ngbe_ring *ring = adapter->rx_ring[i]; + if (ring->accel) + continue; + j = ring->reg_idx; + wr32m(hw, NGBE_PX_RR_CFG(j), + NGBE_PX_RR_CFG_VLAN, NGBE_PX_RR_CFG_VLAN); + } +} + +void ngbe_vlan_mode(struct net_device *netdev, u32 features) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + bool enable; + + enable = !!(features & (NETIF_F_HW_VLAN_CTAG_RX)); + if (enable) + /* enable VLAN tag insert/strip */ + ngbe_vlan_strip_enable(adapter); + else + /* disable VLAN tag insert/strip */ + ngbe_vlan_strip_disable(adapter); +} + +static void ngbe_restore_vlan(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + u16 vid; + + ngbe_vlan_mode(netdev, netdev->features); + + for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) + ngbe_vlan_rx_add_vid(netdev, htons(ETH_P_8021Q), vid); +} + +static u8 *ngbe_addr_list_itr(struct ngbe_hw *hw, + u8 **mc_addr_ptr, u32 *vmdq) +{ + struct netdev_hw_addr *mc_ptr; + u8 *addr = *mc_addr_ptr; + struct ngbe_adapter *adapter = hw->back; + + /* 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; +} + +/** + * ngbe_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 ngbe_write_mc_addr_list(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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, + ngbe_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, + ngbe_addr_list_itr, true); + } + +#ifdef CONFIG_PCI_IOV + ngbe_restore_vf_multicasts(adapter); +#endif + return addr_count; +} + +void ngbe_full_sync_mac_table(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int i; + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state & NGBE_MAC_STATE_IN_USE) { + TCALL(hw, mac.ops.set_rar, i, + adapter->mac_table[i].addr, + adapter->mac_table[i].pools, + NGBE_PSR_MAC_SWC_AD_H_AV); + } else { + TCALL(hw, mac.ops.clear_rar, i); + } + adapter->mac_table[i].state &= ~(NGBE_MAC_STATE_MODIFIED); + } +} + +static void ngbe_sync_mac_table(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int i; + for (i = 0; i < hw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state & NGBE_MAC_STATE_MODIFIED) { + if (adapter->mac_table[i].state & + NGBE_MAC_STATE_IN_USE) { + TCALL(hw, mac.ops.set_rar, i, + adapter->mac_table[i].addr, + adapter->mac_table[i].pools, + NGBE_PSR_MAC_SWC_AD_H_AV); + } else { + TCALL(hw, mac.ops.clear_rar, i); + } + adapter->mac_table[i].state &= + ~(NGBE_MAC_STATE_MODIFIED); + } + } +} + +int ngbe_available_rars(struct ngbe_adapter *adapter) +{ + struct ngbe_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 ngbe_mac_set_default_filter(struct ngbe_adapter *adapter, + u8 *addr) +{ + struct ngbe_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 = (NGBE_MAC_STATE_DEFAULT | + NGBE_MAC_STATE_IN_USE); + TCALL(hw, mac.ops.set_rar, 0, adapter->mac_table[0].addr, + adapter->mac_table[0].pools, + NGBE_PSR_MAC_SWC_AD_H_AV); +} + +int ngbe_add_mac_filter(struct ngbe_adapter *adapter, u8 *addr, u16 pool) +{ + struct ngbe_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 & NGBE_MAC_STATE_IN_USE) { + continue; + } + adapter->mac_table[i].state |= (NGBE_MAC_STATE_MODIFIED | + NGBE_MAC_STATE_IN_USE); + memcpy(adapter->mac_table[i].addr, addr, ETH_ALEN); + adapter->mac_table[i].pools = (1ULL << pool); + ngbe_sync_mac_table(adapter); + return i; + } + return -ENOMEM; +} + +static void ngbe_flush_sw_mac_table(struct ngbe_adapter *adapter) +{ + u32 i; + struct ngbe_hw *hw = &adapter->hw; + + for (i = 0; i < hw->mac.num_rar_entries; i++) { + adapter->mac_table[i].state |= NGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~NGBE_MAC_STATE_IN_USE; + memset(adapter->mac_table[i].addr, 0, ETH_ALEN); + adapter->mac_table[i].pools = 0; + } + ngbe_sync_mac_table(adapter); +} + +int ngbe_del_mac_filter(struct ngbe_adapter *adapter, u8 *addr, u16 pool) +{ + /* search table for addr, if found, set to 0 and sync */ + u32 i; + struct ngbe_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 |= NGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~NGBE_MAC_STATE_IN_USE; + memset(adapter->mac_table[i].addr, 0, ETH_ALEN); + adapter->mac_table[i].pools = 0; + ngbe_sync_mac_table(adapter); + return 0; + } + } + return -ENOMEM; +} + +/** + * ngbe_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 ngbe_write_uc_addr_list(struct net_device *netdev, int pool) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + int count = 0; + + /* return ENOMEM indicating insufficient memory for addresses */ + if (netdev_uc_count(netdev) > ngbe_available_rars(adapter)) + return -ENOMEM; + + if (!netdev_uc_empty(netdev)) { + struct netdev_hw_addr *ha; + netdev_for_each_uc_addr(ha, netdev) { + ngbe_del_mac_filter(adapter, ha->addr, pool); + ngbe_add_mac_filter(adapter, ha->addr, pool); + count++; + } + } + return count; +} + +/** + * ngbe_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 ngbe_set_rx_mode(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + u32 fctrl, vmolr, vlnctrl; + int count; + + /* Check for Promiscuous and All Multicast modes */ + fctrl = rd32m(hw, NGBE_PSR_CTL, + ~(NGBE_PSR_CTL_UPE | NGBE_PSR_CTL_MPE)); + vmolr = rd32m(hw, NGBE_PSR_VM_L2CTL(VMDQ_P(0)), + ~(NGBE_PSR_VM_L2CTL_UPE | + NGBE_PSR_VM_L2CTL_MPE | + NGBE_PSR_VM_L2CTL_ROPE | + NGBE_PSR_VM_L2CTL_ROMPE)); + vlnctrl = rd32m(hw, NGBE_PSR_VLAN_CTL, + ~(NGBE_PSR_VLAN_CTL_VFE | + NGBE_PSR_VLAN_CTL_CFIEN)); + + /* set all bits that we expect to always be set */ + fctrl |= NGBE_PSR_CTL_BAM | NGBE_PSR_CTL_MFE; + vmolr |= NGBE_PSR_VM_L2CTL_BAM | + NGBE_PSR_VM_L2CTL_AUPE | + NGBE_PSR_VM_L2CTL_VACC; + vlnctrl |= NGBE_PSR_VLAN_CTL_VFE; + + hw->addr_ctrl.user_set_promisc = false; + if (netdev->flags & IFF_PROMISC) { + hw->addr_ctrl.user_set_promisc = true; + fctrl |= (NGBE_PSR_CTL_UPE | NGBE_PSR_CTL_MPE); + /* pf don't want packets routing to vf, so clear UPE */ + vmolr |= NGBE_PSR_VM_L2CTL_MPE; + vlnctrl &= ~NGBE_PSR_VLAN_CTL_VFE; + } + + if (netdev->flags & IFF_ALLMULTI) { + fctrl |= NGBE_PSR_CTL_MPE; + vmolr |= NGBE_PSR_VM_L2CTL_MPE; + } + + /* This is useful for sniffing bad packets. */ + if (netdev->features & NETIF_F_RXALL) { + vmolr |= (NGBE_PSR_VM_L2CTL_UPE | NGBE_PSR_VM_L2CTL_MPE); + vlnctrl &= ~NGBE_PSR_VLAN_CTL_VFE; + /* receive bad packets */ + wr32m(hw, NGBE_RSEC_CTL, + NGBE_RSEC_CTL_SAVE_MAC_ERR, + NGBE_RSEC_CTL_SAVE_MAC_ERR); + } else { + vmolr |= NGBE_PSR_VM_L2CTL_ROPE | NGBE_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 = ngbe_write_uc_addr_list(netdev, VMDQ_P(0)); + if (count < 0) { + vmolr &= ~NGBE_PSR_VM_L2CTL_ROPE; + vmolr |= NGBE_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 = ngbe_write_mc_addr_list(netdev); + if (count < 0) { + vmolr &= ~NGBE_PSR_VM_L2CTL_ROMPE; + vmolr |= NGBE_PSR_VM_L2CTL_MPE; + } + + wr32(hw, NGBE_PSR_VLAN_CTL, vlnctrl); + wr32(hw, NGBE_PSR_CTL, fctrl); + wr32(hw, NGBE_PSR_VM_L2CTL(VMDQ_P(0)), vmolr); + + if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) + ngbe_vlan_strip_enable(adapter); + else + ngbe_vlan_strip_disable(adapter); +} + +static void ngbe_napi_enable_all(struct ngbe_adapter *adapter) +{ + struct ngbe_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 ngbe_napi_disable_all(struct ngbe_adapter *adapter) +{ + struct ngbe_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); + } +} + +/* NETIF_F_GSO_IPXIP4/6 may not be defined in all distributions */ +#define NGBE_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 ngbe_tso_features(void) +{ + unsigned long features = 0; + + features |= NETIF_F_TSO; + features |= NETIF_F_TSO6; + features |= NETIF_F_GSO_PARTIAL | NGBE_GSO_PARTIAL_FEATURES; + + return features; +} + +#ifndef CONFIG_NGBE_NO_LLI +static void ngbe_configure_lli(struct ngbe_adapter *adapter) +{ + /* lli should only be enabled with MSI-X and MSI */ + if (!(adapter->flags & NGBE_FLAG_MSI_ENABLED) && + !(adapter->flags & NGBE_FLAG_MSIX_ENABLED)) + return; + + if (adapter->lli_etype) { + wr32(&adapter->hw, NGBE_RDB_5T_CTL1(0), + (NGBE_RDB_5T_CTL1_LLI | + NGBE_RDB_5T_CTL1_SIZE_BP)); + wr32(&adapter->hw, NGBE_RDB_ETYPE_CLS(0), + NGBE_RDB_ETYPE_CLS_LLI); + wr32(&adapter->hw, NGBE_PSR_ETYPE_SWC(0), + (adapter->lli_etype | + NGBE_PSR_ETYPE_SWC_FILTER_EN)); + } + + if (adapter->lli_port) { + wr32(&adapter->hw, NGBE_RDB_5T_CTL1(0), + (NGBE_RDB_5T_CTL1_LLI | + NGBE_RDB_5T_CTL1_SIZE_BP)); + + wr32(&adapter->hw, NGBE_RDB_5T_CTL0(0), + (NGBE_RDB_5T_CTL0_POOL_MASK_EN | + (NGBE_RDB_5T_CTL0_PRIORITY_MASK << + NGBE_RDB_5T_CTL0_PRIORITY_SHIFT) | + (NGBE_RDB_5T_CTL0_DEST_PORT_MASK << + NGBE_RDB_5T_CTL0_5TUPLE_MASK_SHIFT))); + + wr32(&adapter->hw, NGBE_RDB_5T_SDP(0), + (adapter->lli_port << 16)); + } + + if (adapter->lli_size) { + wr32(&adapter->hw, NGBE_RDB_5T_CTL1(0), + NGBE_RDB_5T_CTL1_LLI); + wr32m(&adapter->hw, NGBE_RDB_LLI_THRE, + NGBE_RDB_LLI_THRE_SZ(~0), adapter->lli_size); + wr32(&adapter->hw, NGBE_RDB_5T_CTL0(0), + (NGBE_RDB_5T_CTL0_POOL_MASK_EN | + (NGBE_RDB_5T_CTL0_PRIORITY_MASK << + NGBE_RDB_5T_CTL0_PRIORITY_SHIFT) | + (NGBE_RDB_5T_CTL0_5TUPLE_MASK_MASK << + NGBE_RDB_5T_CTL0_5TUPLE_MASK_SHIFT))); + } + + if (adapter->lli_vlan_pri) { + wr32m(&adapter->hw, NGBE_RDB_LLI_THRE, + NGBE_RDB_LLI_THRE_PRIORITY_EN | + NGBE_RDB_LLI_THRE_UP(~0), + NGBE_RDB_LLI_THRE_PRIORITY_EN | + (adapter->lli_vlan_pri << NGBE_RDB_LLI_THRE_UP_SHIFT)); + } +} + +#endif /* CONFIG_NGBE_NO_LLI */ +/* Additional bittime to account for NGBE framing */ +#define NGBE_ETH_FRAMING 20 + +/* + * ngbe_hpbthresh - calculate high water mark for flow control + * + * @adapter: board private structure to calculate for + * @pb - packet buffer to calculate + */ +static int ngbe_hpbthresh(struct ngbe_adapter *adapter) +{ + struct ngbe_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 + NGBE_ETH_FRAMING; + + /* Calculate delay value for device */ + dv_id = NGBE_DV(link, tc); + + /* Loopback switch introduces additional latency */ + if (adapter->flags & NGBE_FLAG_SRIOV_ENABLED) + dv_id += NGBE_B2BT(tc); + + /* Delay value is calculated in bit times convert to KB */ + kb = NGBE_BT2KB(dv_id); + rx_pba = rd32(hw, NGBE_RDB_PB_SZ) + >> NGBE_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 can not provide enough" + "headroom to suppport flow control." + "Decrease MTU or number of traffic classes\n"); + marker = tc + 1; + } + + return marker; +} + +/* + * ngbe_lpbthresh - calculate low water mark for for flow control + * + * @adapter: board private structure to calculate for + * @pb - packet buffer to calculate + */ +static int ngbe_lpbthresh(struct ngbe_adapter *adapter) +{ + 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 = NGBE_LOW_DV(tc); + + /* Delay value is calculated in bit times convert to KB */ + return NGBE_BT2KB(dv_id); +} + +/* + * ngbe_pbthresh_setup - calculate and setup high low water marks + */ + +static void ngbe_pbthresh_setup(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int num_tc = netdev_get_num_tc(adapter->netdev); + + if (!num_tc) + num_tc = 1; + + hw->fc.high_water = ngbe_hpbthresh(adapter); + hw->fc.low_water = ngbe_lpbthresh(adapter); + + /* Low water marks must not be larger than high water marks */ + if (hw->fc.low_water > hw->fc.high_water) + hw->fc.low_water = 0; +} + +static void ngbe_configure_pb(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int hdrm = 0; + int tc = netdev_get_num_tc(adapter->netdev); + + TCALL(hw, mac.ops.setup_rxpba, tc, hdrm, PBA_STRATEGY_EQUAL); + ngbe_pbthresh_setup(adapter); +} + +void ngbe_configure_isb(struct ngbe_adapter *adapter) +{ + /* set ISB Address */ + struct ngbe_hw *hw = &adapter->hw; + + wr32(hw, NGBE_PX_ISB_ADDR_L, + adapter->isb_dma & DMA_BIT_MASK(32)); + wr32(hw, NGBE_PX_ISB_ADDR_H, adapter->isb_dma >> 32); +} + +void ngbe_configure_port(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 value, i; + + if (adapter->num_vfs == 0) { + value = NGBE_CFG_PORT_CTL_NUM_VT_NONE; + } else + value = NGBE_CFG_PORT_CTL_NUM_VT_8; + + /* enable double vlan and qinq, NONE VT at default */ + value |= NGBE_CFG_PORT_CTL_D_VLAN | + NGBE_CFG_PORT_CTL_QINQ; + wr32m(hw, NGBE_CFG_PORT_CTL, + NGBE_CFG_PORT_CTL_D_VLAN | + NGBE_CFG_PORT_CTL_QINQ | + NGBE_CFG_PORT_CTL_NUM_VT_MASK, + value); + + wr32(hw, NGBE_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, NGBE_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 ngbe_configure(struct ngbe_adapter *adapter) +{ + ngbe_configure_pb(adapter); + + /* + * We must restore virtualization before VLANs or else + * the VLVF registers will not be populated + */ + ngbe_configure_virtualization(adapter); + /* configure Double Vlan */ + ngbe_configure_port(adapter); + + ngbe_set_rx_mode(adapter->netdev); + ngbe_restore_vlan(adapter); + + ngbe_configure_tx(adapter); + ngbe_configure_rx(adapter); + ngbe_configure_isb(adapter); +} + + +/** + * ngbe_non_sfp_link_config - set up non-SFP+ link + * @hw: pointer to private hardware struct + * + * Returns 0 on success, negative on failure + **/ +static int ngbe_non_sfp_link_config(struct ngbe_hw *hw) +{ + u32 speed; + bool autoneg, link_up = false; + u32 ret = NGBE_ERR_LINK_SETUP; + + ret = TCALL(hw, mac.ops.check_link, &speed, &link_up, false); + + speed = hw->phy.autoneg_advertised; + if (!speed) + ret = TCALL(hw, mac.ops.get_link_capabilities, &speed, + &autoneg); + + if ((hw->subsystem_device_id & OEM_MASK) == OCP_CARD || + ((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP)) { + + } else { + msleep(50); + if (hw->phy.type == ngbe_phy_internal) { + TCALL(hw, eeprom.ops.phy_signal_set); + TCALL(hw, phy.ops.setup_once); + } + } + + ret = TCALL(hw, mac.ops.setup_link, speed, false); + + return ret; +} + +static void ngbe_setup_gpie(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 gpie = 0; + + if (adapter->flags & NGBE_FLAG_MSIX_ENABLED) { + gpie = NGBE_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, NGBE_PX_GPIE, gpie); +} + +static void ngbe_up_complete(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int err; + + ngbe_get_hw_control(adapter); + ngbe_setup_gpie(adapter); + + if (adapter->flags & NGBE_FLAG_MSIX_ENABLED) + ngbe_configure_msix(adapter); + else + ngbe_configure_msi_and_legacy(adapter); + + smp_mb__before_atomic(); + clear_bit(__NGBE_DOWN, &adapter->state); + ngbe_napi_enable_all(adapter); +#ifndef CONFIG_NGBE_NO_LLI + ngbe_configure_lli(adapter); +#endif + + err = ngbe_non_sfp_link_config(hw); + if (err) + e_err(probe, "link_config FAILED %d\n", err); + + /* sellect GMII */ + wr32(hw, NGBE_MAC_TX_CFG, + (rd32(hw, NGBE_MAC_TX_CFG) & ~NGBE_MAC_TX_CFG_SPEED_MASK) | + NGBE_MAC_TX_CFG_SPEED_1G); + + /* clear any pending interrupts, may auto mask */ + rd32(hw, NGBE_PX_IC); + rd32(hw, NGBE_PX_MISC_IC); + ngbe_irq_enable(adapter, true, true); + + if (((hw->subsystem_device_id & OEM_MASK) == LY_M88E1512_SFP) || + (hw->subsystem_device_id & OEM_MASK) == LY_YT8521S_SFP) + /* gpio0 is used to power on/off control*/ + wr32(hw, NGBE_GPIO_DR, 0); + + /* 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 |= NGBE_FLAG_NEED_LINK_UPDATE; + adapter->link_check_timeout = jiffies; +#ifdef CONFIG_NGBE_POLL_LINK_STATUS + mod_timer(&adapter->link_check_timer, jiffies); +#endif + mod_timer(&adapter->service_timer, jiffies); + /* ngbe_clear_vf_stats_counters(adapter); */ + + /* Set PF Reset Done bit so PF/VF Mail Ops can work */ + wr32m(hw, NGBE_CFG_PORT_CTL, + NGBE_CFG_PORT_CTL_PFRSTD, NGBE_CFG_PORT_CTL_PFRSTD); +} + +void ngbe_reinit_locked(struct ngbe_adapter *adapter) +{ + WARN_ON(in_interrupt()); + /* put off any impending NetWatchDogTimeout */ + netif_trans_update(adapter->netdev); + + while (test_and_set_bit(__NGBE_RESETTING, &adapter->state)) + usleep_range(1000, 2000); + ngbe_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 & NGBE_FLAG_SRIOV_ENABLED) + msleep(2000); + ngbe_up(adapter); + clear_bit(__NGBE_RESETTING, &adapter->state); +} + +void ngbe_up(struct ngbe_adapter *adapter) +{ + /* hardware has been reset, we need to reload some things */ + ngbe_configure(adapter); + ngbe_up_complete(adapter); +} + +void ngbe_reset(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + int err; + u8 old_addr[ETH_ALEN]; + + if (NGBE_REMOVED(hw->hw_addr)) + return; + + err = TCALL(hw, mac.ops.init_hw); + switch (err) { + case 0: + break; + case NGBE_ERR_MASTER_REQUESTS_PENDING: + e_dev_err("master disable timed out\n"); + break; + case NGBE_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); + } + + /* do not flush user set addresses */ + memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len); + ngbe_flush_sw_mac_table(adapter); + ngbe_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(__NGBE_PTP_RUNNING, &adapter->state)) + ngbe_ptp_reset(adapter); +} + +/** + * ngbe_clean_rx_ring - Free Rx Buffers per Queue + * @rx_ring: ring to free buffers from + **/ +static void ngbe_clean_rx_ring(struct ngbe_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 ngbe_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 (NGBE_CB(skb)->dma_released) { + dma_unmap_single(dev, + NGBE_CB(skb)->dma, + rx_ring->rx_buf_len, + DMA_FROM_DEVICE); + NGBE_CB(skb)->dma = 0; + NGBE_CB(skb)->dma_released = false; + } + + if (NGBE_CB(skb)->page_released) + dma_unmap_page(dev, + NGBE_CB(skb)->dma, + ngbe_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, + ngbe_rx_pg_size(rx_ring), + DMA_FROM_DEVICE); + + __free_pages(rx_buffer->page, + ngbe_rx_pg_order(rx_ring)); + rx_buffer->page = NULL; + } + + size = sizeof(struct ngbe_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; +} + +/** + * ngbe_clean_tx_ring - Free Tx Buffers + * @tx_ring: ring to be cleaned + **/ +static void ngbe_clean_tx_ring(struct ngbe_ring *tx_ring) +{ + struct ngbe_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]; + ngbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); + } + + netdev_tx_reset_queue(txring_txq(tx_ring)); + + size = sizeof(struct ngbe_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); +} + +/** + * ngbe_clean_all_rx_rings - Free Rx Buffers for all queues + * @adapter: board private structure + **/ +static void ngbe_clean_all_rx_rings(struct ngbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + ngbe_clean_rx_ring(adapter->rx_ring[i]); +} + +/** + * ngbe_clean_all_tx_rings - Free Tx Buffers for all queues + * @adapter: board private structure + **/ +static void ngbe_clean_all_tx_rings(struct ngbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + ngbe_clean_tx_ring(adapter->tx_ring[i]); +} + +void ngbe_disable_device(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ngbe_hw *hw = &adapter->hw; + u32 i; + + /* signal that we are down to the interrupt handler */ + if (test_and_set_bit(__NGBE_DOWN, &adapter->state)) + return; /* do nothing if already down */ + + ngbe_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 */ + ngbe_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); + + if ((hw->subsystem_device_id & OEM_MASK) == LY_M88E1512_SFP || + (hw->subsystem_device_id & OEM_MASK) == LY_YT8521S_SFP) + /* gpio0 is used to power on/off control*/ + wr32(hw, NGBE_GPIO_DR, NGBE_GPIO_DR_0); + + ngbe_irq_disable(adapter); + + ngbe_napi_disable_all(adapter); + + adapter->flags2 &= ~(NGBE_FLAG2_PF_RESET_REQUESTED | + NGBE_FLAG2_DEV_RESET_REQUESTED | + NGBE_FLAG2_GLOBAL_RESET_REQUESTED); + adapter->flags &= ~NGBE_FLAG_NEED_LINK_UPDATE; + + del_timer_sync(&adapter->service_timer); +#ifdef CONFIG_NGBE_POLL_LINK_STATUS + del_timer_sync(&adapter->link_check_timer); +#endif + if (adapter->num_vfs) { + /* Clear EITR Select mapping */ + wr32(&adapter->hw, NGBE_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 */ + ngbe_ping_all_vfs(adapter); + + /* Disable all VFTE/VFRE TX/RX */ + ngbe_disable_tx_rx(adapter); + } + + /*OCP NCSI need it*/ + if (!(((hw->subsystem_device_id & OEM_MASK) == OCP_CARD) || + ((hw->subsystem_device_id & WOL_SUP_MASK) == WOL_SUP) || + ((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP))) { + /* disable mac transmiter */ + wr32m(hw, NGBE_MAC_TX_CFG, NGBE_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, NGBE_PX_TR_CFG(reg_idx), + NGBE_PX_TR_CFG_SWFLSH); + } + + /* Disable the Tx DMA engine */ + wr32m(hw, NGBE_TDM_CTL, NGBE_TDM_CTL_TE, 0); +} + + +void ngbe_down(struct ngbe_adapter *adapter) +{ + ngbe_disable_device(adapter); + + if (!pci_channel_offline(adapter->pdev)) + ngbe_reset(adapter); + + ngbe_clean_all_tx_rings(adapter); + ngbe_clean_all_rx_rings(adapter); +} + +/** + * ngbe_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 ngbe_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 ngbe_init_shared_code(struct ngbe_hw *hw) +{ + DEBUGFUNC("\n"); + + if ((hw->subsystem_device_id & INTERNAL_SFP_MASK) == INTERNAL_SFP || + (hw->subsystem_device_id & OEM_MASK) == LY_M88E1512_SFP) + hw->phy.type = ngbe_phy_m88e1512_sfi; + else if (hw->subsystem_device_id == NGBE_WX1860AL_M88E1512_RJ45) + hw->phy.type = ngbe_phy_m88e1512; + else if ((hw->subsystem_device_id & OEM_MASK) == YT8521S_SFP || + (hw->subsystem_device_id & OEM_MASK) == LY_YT8521S_SFP) + hw->phy.type = ngbe_phy_yt8521s_sfi; + else + hw->phy.type = ngbe_phy_internal; + +/* select claus22 */ + wr32(hw, NGBE_MDIO_CLAUSE_SELECT, 0xF); + + return ngbe_init_ops(hw); +} + +/** + * ngbe_sw_init - Initialize general software structures (struct ngbe_adapter) + * @adapter: board private structure to initialize + * + * ngbe_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 ngbe_sw_init(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + int err; + + /* 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 == NGBE_FAILED_READ_CFG_BYTE && + ngbe_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; + + /* phy type, phy ops, mac ops */ + err = ngbe_init_shared_code(hw); + if (err) { + e_err(probe, "init_shared_code failed: %d\n", err); + goto out; + } + + adapter->mac_table = kzalloc(sizeof(struct ngbe_mac_addr) * + hw->mac.num_rar_entries, + GFP_ATOMIC); + if (!adapter->mac_table) { + err = NGBE_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->max_q_vectors = NGBE_MAX_MSIX_Q_VECTORS_EMERALD; + + /* Set MAC specific capability flags and exceptions */ + adapter->flags |= NGBE_FLAGS_SP_INIT; + adapter->flags2 |= NGBE_FLAG2_TEMP_SENSOR_CAPABLE; + adapter->flags2 |= NGBE_FLAG2_EEE_CAPABLE; + + /* init mailbox params */ + TCALL(hw, mbx.ops.init_params); + + /* default flow control settings */ + hw->fc.requested_mode = ngbe_fc_full; + hw->fc.current_mode = ngbe_fc_full; /* init for ethtool output */ + + adapter->last_lfc_mode = hw->fc.current_mode; + hw->fc.pause_time = NGBE_DEFAULT_FCPAUSE; + hw->fc.send_xon = true; + hw->fc.disable_fc_autoneg = false; + + /* set default ring sizes */ + adapter->tx_ring_count = NGBE_DEFAULT_TXD; + adapter->rx_ring_count = NGBE_DEFAULT_RXD; + + /* set default work limits */ + adapter->tx_work_limit = NGBE_DEFAULT_TX_WORK; + adapter->rx_work_limit = NGBE_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(__NGBE_DOWN, &adapter->state); +out: + return err; +} + +/** + * ngbe_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 ngbe_setup_tx_resources(struct ngbe_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 ngbe_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 ngbe_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; +} + +/** + * ngbe_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 ngbe_setup_all_tx_resources(struct ngbe_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_tx_queues; i++) { + err = ngbe_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--) + ngbe_free_tx_resources(adapter->tx_ring[i]); + return err; +} + +/** + * ngbe_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 ngbe_setup_rx_resources(struct ngbe_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 ngbe_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 ngbe_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; +} + +/** + * ngbe_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 ngbe_setup_all_rx_resources(struct ngbe_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_rx_queues; i++) { + err = ngbe_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--) + ngbe_free_rx_resources(adapter->rx_ring[i]); + return err; +} + +/** + * ngbe_setup_isb_resources - allocate interrupt status resources + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ +static int ngbe_setup_isb_resources(struct ngbe_adapter *adapter) +{ + struct device *dev = pci_dev_to_dev(adapter->pdev); + + adapter->isb_mem = dma_alloc_coherent(dev, + sizeof(u32) * NGBE_ISB_MAX, + &adapter->isb_dma, + GFP_KERNEL); + if (!adapter->isb_mem) { + e_err(probe, "ngbe_setup_isb_resources: alloc isb_mem failed\n"); + return -ENOMEM; + } + memset(adapter->isb_mem, 0, sizeof(u32) * NGBE_ISB_MAX); + return 0; +} + +/** + * ngbe_free_isb_resources - allocate all queues Rx resources + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ +static void ngbe_free_isb_resources(struct ngbe_adapter *adapter) +{ + struct device *dev = pci_dev_to_dev(adapter->pdev); + + dma_free_coherent(dev, sizeof(u32) * NGBE_ISB_MAX, + adapter->isb_mem, adapter->isb_dma); + adapter->isb_mem = NULL; +} + +/** + * ngbe_free_tx_resources - Free Tx Resources per Queue + * @tx_ring: Tx descriptor ring for a specific queue + * + * Free all transmit software resources + **/ +void ngbe_free_tx_resources(struct ngbe_ring *tx_ring) +{ + ngbe_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; +} + +/** + * ngbe_free_all_tx_resources - Free Tx Resources for All Queues + * @adapter: board private structure + * + * Free all transmit software resources + **/ +static void ngbe_free_all_tx_resources(struct ngbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + ngbe_free_tx_resources(adapter->tx_ring[i]); +} + +/** + * ngbe_free_rx_resources - Free Rx Resources + * @rx_ring: ring to clean the resources from + * + * Free all receive software resources + **/ +void ngbe_free_rx_resources(struct ngbe_ring *rx_ring) +{ + ngbe_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; +} + +/** + * ngbe_free_all_rx_resources - Free Rx Resources for All Queues + * @adapter: board private structure + * + * Free all receive software resources + **/ +static void ngbe_free_all_rx_resources(struct ngbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + ngbe_free_rx_resources(adapter->rx_ring[i]); +} + +/** + * ngbe_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 ngbe_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct ngbe_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 & NGBE_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)) + ngbe_reinit_locked(adapter); + + return 0; +} + +/** + * ngbe_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 ngbe_open(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + int err; + + /* disallow open during test */ + if (test_bit(__NGBE_TESTING, &adapter->state)) + return -EBUSY; + + netif_carrier_off(netdev); + + /* allocate transmit descriptors */ + err = ngbe_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* allocate receive descriptors */ + err = ngbe_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + + err = ngbe_setup_isb_resources(adapter); + if (err) + goto err_req_isb; + + ngbe_configure(adapter); + + err = ngbe_request_irq(adapter); + if (err) + goto err_req_irq; + + if (adapter->num_tx_queues) { + /* 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; + } + + if (adapter->num_rx_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; + } + + ngbe_ptp_init(adapter); + ngbe_up_complete(adapter); + + return 0; + +err_set_queues: + ngbe_free_irq(adapter); +err_req_irq: + ngbe_free_isb_resources(adapter); +err_req_isb: + ngbe_free_all_rx_resources(adapter); + +err_setup_rx: + ngbe_free_all_tx_resources(adapter); +err_setup_tx: + ngbe_reset(adapter); + return err; +} + +/** + * ngbe_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 ngbe_close_suspend(struct ngbe_adapter *adapter) +{ + ngbe_ptp_suspend(adapter); + ngbe_disable_device(adapter); + + ngbe_clean_all_tx_rings(adapter); + ngbe_clean_all_rx_rings(adapter); + + ngbe_free_irq(adapter); + + ngbe_free_isb_resources(adapter); + ngbe_free_all_rx_resources(adapter); + ngbe_free_all_tx_resources(adapter); +} + +/** + * ngbe_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 ngbe_close(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + ngbe_ptp_stop(adapter); + ngbe_down(adapter); + ngbe_free_irq(adapter); + + ngbe_free_isb_resources(adapter); + ngbe_free_all_rx_resources(adapter); + ngbe_free_all_tx_resources(adapter); + + ngbe_release_hw_control(adapter); + + return 0; +} + +#ifdef CONFIG_PM +static int ngbe_resume(struct pci_dev *pdev) +{ + struct ngbe_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); + wr32(&adapter->hw, NGBE_PSR_WKUP_CTL, adapter->wol); + + 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(__NGBE_DISABLED, &adapter->state); + pci_set_master(pdev); + + pci_wake_from_d3(pdev, false); + + ngbe_reset(adapter); + + rtnl_lock(); + + err = ngbe_init_interrupt_scheme(adapter); + if (!err && netif_running(netdev)) + err = ngbe_open(netdev); + + rtnl_unlock(); + + if (err) + return err; + + netif_device_attach(netdev); + + return 0; +} +#endif /* CONFIG_PM */ + +/* + * __ngbe_shutdown is not used when power manangbeent + * is disabled on older kernels (<2.6.12). causes a compile + * warning/error, because it is defined and not used. + */ +static int __ngbe_shutdown(struct pci_dev *pdev, bool *enable_wake) +{ + struct ngbe_adapter *adapter = pci_get_drvdata(pdev); + struct net_device *netdev = adapter->netdev; + struct ngbe_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)) + ngbe_close_suspend(adapter); + rtnl_unlock(); + + ngbe_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 */ + ngbe_stop_mac_link_on_d3(hw); + + if (wufc) { + ngbe_set_rx_mode(netdev); + ngbe_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 & NGBE_PSR_WKUP_CTL_MC) { + wr32m(hw, NGBE_PSR_CTL, + NGBE_PSR_CTL_MPE, NGBE_PSR_CTL_MPE); + } + + pci_clear_master(adapter->pdev); + wr32(hw, NGBE_PSR_WKUP_CTL, wufc); + } else { + wr32(hw, NGBE_PSR_WKUP_CTL, 0); + } + + pci_wake_from_d3(pdev, !!wufc); + + *enable_wake = !!wufc; + ngbe_release_hw_control(adapter); + + if (!test_and_set_bit(__NGBE_DISABLED, &adapter->state)) + pci_disable_device(pdev); + + return 0; +} + +#ifdef CONFIG_PM +static int ngbe_suspend(struct pci_dev *pdev, + pm_message_t __always_unused state) +{ + int retval; + bool wake; + + retval = __ngbe_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 ngbe_shutdown(struct pci_dev *pdev) +{ + bool wake; + + __ngbe_shutdown(pdev, &wake); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, wake); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +/** + * ngbe_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 ngbe_get_stats for kernels which support it. + */ +static void ngbe_get_stats64(struct net_device *netdev, + struct rtnl_link_stats64 *stats) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + int i; + + rcu_read_lock(); + for (i = 0; i < adapter->num_rx_queues; i++) { + struct ngbe_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 ngbe_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 ngbe_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; +} + +/** + * ngbe_update_stats - Update the board statistics counters. + * @adapter: board private structure + **/ +void ngbe_update_stats(struct ngbe_adapter *adapter) +{ + struct net_device_stats *net_stats = &adapter->netdev->stats; + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_hw_stats *hwstats = &adapter->stats; + u64 total_mpc = 0; + u32 i, 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(__NGBE_DOWN, &adapter->state) || + test_bit(__NGBE_RESETTING, &adapter->state)) + return; + + for (i = 0; i < adapter->num_rx_queues; i++) { + struct ngbe_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 ngbe_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, NGBE_RX_CRC_ERROR_FRAMES_LOW); + + hwstats->gprc += rd32(hw, NGBE_PX_GPRC); + + ngbe_update_xoff_rx_lfc(adapter); + + hwstats->o2bgptc += rd32(hw, NGBE_TDM_OS2BMC_CNT); + if (ngbe_check_mng_access(&adapter->hw)) { + hwstats->o2bspc += rd32(hw, NGBE_MNG_OS2BMC_CNT); + hwstats->b2ospc += rd32(hw, NGBE_MNG_BMC2OS_CNT); + } + hwstats->b2ogprc += rd32(hw, NGBE_RDM_BMC2OS_CNT); + hwstats->gorc += rd32(hw, NGBE_PX_GORC_LSB); + hwstats->gorc += (u64)rd32(hw, NGBE_PX_GORC_MSB) << 32; + + hwstats->gotc += rd32(hw, NGBE_PX_GOTC_LSB); + hwstats->gotc += (u64)rd32(hw, NGBE_PX_GOTC_MSB) << 32; + + + adapter->hw_rx_no_dma_resources += + rd32(hw, NGBE_RDM_DRP_PKT); + bprc = rd32(hw, NGBE_RX_BC_FRAMES_GOOD_LOW); + hwstats->bprc += bprc; + hwstats->mprc = 0; + + for (i = 0; i < 8; i++) + hwstats->mprc += rd32(hw, NGBE_PX_MPRC(i)); + + hwstats->roc += rd32(hw, NGBE_RX_OVERSIZE_FRAMES_GOOD); + hwstats->rlec += rd32(hw, NGBE_RX_LEN_ERROR_FRAMES_LOW); + lxon = rd32(hw, NGBE_RDB_LXONTXC); + hwstats->lxontxc += lxon; + lxoff = rd32(hw, NGBE_RDB_LXOFFTXC); + hwstats->lxofftxc += lxoff; + + hwstats->gptc += rd32(hw, NGBE_PX_GPTC); + hwstats->mptc += rd32(hw, NGBE_TX_MC_FRAMES_GOOD_LOW); + hwstats->ruc += rd32(hw, NGBE_RX_UNDERSIZE_FRAMES_GOOD); + hwstats->tpr += rd32(hw, NGBE_RX_FRAME_CNT_GOOD_BAD_LOW); + hwstats->bptc += rd32(hw, NGBE_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; + total_mpc = rd32(hw, NGBE_RDB_MPCNT); + 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(__NGBE_RESETTING, &adapter->state)) { + for (i = 0; i < adapter->num_vfs; i++) { + UPDATE_VF_COUNTER_32bit(NGBE_VX_GPRC, \ + adapter->vfinfo->last_vfstats.gprc, \ + adapter->vfinfo->vfstats.gprc); + UPDATE_VF_COUNTER_32bit(NGBE_VX_GPTC, \ + adapter->vfinfo->last_vfstats.gptc, \ + adapter->vfinfo->vfstats.gptc); + UPDATE_VF_COUNTER_36bit(NGBE_VX_GORC_LSB, \ + NGBE_VX_GORC_MSB, \ + adapter->vfinfo->last_vfstats.gorc, \ + adapter->vfinfo->vfstats.gorc); + UPDATE_VF_COUNTER_36bit(NGBE_VX_GOTC_LSB, \ + NGBE_VX_GOTC_MSB, \ + adapter->vfinfo->last_vfstats.gotc, \ + adapter->vfinfo->vfstats.gotc); + UPDATE_VF_COUNTER_32bit(NGBE_VX_MPRC, \ + adapter->vfinfo->last_vfstats.mprc, \ + adapter->vfinfo->vfstats.mprc); + } + } +} + +/** + * ngbe_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 ngbe_check_hang_subtask(struct ngbe_adapter *adapter) +{ + int i; + + /* If we're down or resetting, just bail */ + if (test_bit(__NGBE_DOWN, &adapter->state) || + test_bit(__NGBE_REMOVING, &adapter->state) || + test_bit(__NGBE_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]); + } +} + +static void ngbe_watchdog_an_complete(struct ngbe_adapter *adapter) +{ + u32 link_speed = 0; + u32 lan_speed = 0; + bool link_up = true; + struct ngbe_hw *hw = &adapter->hw; + + if (!(adapter->flags & NGBE_FLAG_NEED_ANC_CHECK)) + return; + + TCALL(hw, mac.ops.check_link, &link_speed, &link_up, false); + + adapter->link_speed = link_speed; + switch (link_speed) { + case NGBE_LINK_SPEED_100_FULL: + lan_speed = 1; + break; + case NGBE_LINK_SPEED_1GB_FULL: + lan_speed = 2; + break; + case NGBE_LINK_SPEED_10_FULL: + lan_speed = 0; + break; + default: + break; + } + wr32m(hw, NGBE_CFG_LAN_SPEED, + 0x3, lan_speed); + + if (link_speed & (NGBE_LINK_SPEED_1GB_FULL | + NGBE_LINK_SPEED_100_FULL | NGBE_LINK_SPEED_10_FULL)) { + wr32(hw, NGBE_MAC_TX_CFG, + (rd32(hw, NGBE_MAC_TX_CFG) & + ~NGBE_MAC_TX_CFG_SPEED_MASK) | NGBE_MAC_TX_CFG_TE | + NGBE_MAC_TX_CFG_SPEED_1G); + } + + adapter->flags &= ~NGBE_FLAG_NEED_ANC_CHECK; + adapter->flags |= NGBE_FLAG_NEED_LINK_UPDATE; + + return; +} + +/** + * ngbe_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 ngbe_watchdog_update_link_status(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 link_speed = adapter->link_speed; + bool link_up = adapter->link_up; + u32 lan_speed = 0; + u32 reg; + +#ifndef CONFIG_NGBE_POLL_LINK_STATUS + if (!(adapter->flags & NGBE_FLAG_NEED_LINK_UPDATE)) + return; +#endif + link_speed = NGBE_LINK_SPEED_1GB_FULL; + link_up = true; + + TCALL(hw, mac.ops.check_link, &link_speed, &link_up, false); +#ifndef CONFIG_NGBE_POLL_LINK_STATUS + if (link_up || time_after(jiffies, (adapter->link_check_timeout + + NGBE_TRY_LINK_TIMEOUT))) { + adapter->flags &= ~NGBE_FLAG_NEED_LINK_UPDATE; + } +#else + if (adapter->link_up == link_up && + adapter->link_speed == link_speed) + return; +#endif + + adapter->link_speed = link_speed; + switch (link_speed) { + case NGBE_LINK_SPEED_100_FULL: + lan_speed = 1; + break; + case NGBE_LINK_SPEED_1GB_FULL: + lan_speed = 2; + break; + case NGBE_LINK_SPEED_10_FULL: + lan_speed = 0; + break; + default: + break; + } + wr32m(hw, NGBE_CFG_LAN_SPEED, + 0x3, lan_speed); + + if (link_up) { + TCALL(hw, mac.ops.fc_enable); + ngbe_set_rx_drop_en(adapter); + } + + if (link_up) { + adapter->last_rx_ptp_check = jiffies; + + if (test_bit(__NGBE_PTP_RUNNING, &adapter->state)) + ngbe_ptp_start_cyclecounter(adapter); + + if (link_speed & (NGBE_LINK_SPEED_1GB_FULL | + NGBE_LINK_SPEED_100_FULL | NGBE_LINK_SPEED_10_FULL)) { + wr32(hw, NGBE_MAC_TX_CFG, + (rd32(hw, NGBE_MAC_TX_CFG) & + ~NGBE_MAC_TX_CFG_SPEED_MASK) | NGBE_MAC_TX_CFG_TE | + NGBE_MAC_TX_CFG_SPEED_1G); + } + + /* Re configure MAC RX */ + reg = rd32(hw, NGBE_MAC_RX_CFG); + wr32(hw, NGBE_MAC_RX_CFG, reg); + wr32(hw, NGBE_MAC_PKT_FLT, NGBE_MAC_PKT_FLT_PR); + reg = rd32(hw, NGBE_MAC_WDG_TIMEOUT); + wr32(hw, NGBE_MAC_WDG_TIMEOUT, reg); + } + + adapter->link_up = link_up; + 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); + } + } + return; +} + +static void ngbe_update_default_up(struct ngbe_adapter *adapter) +{ + u8 up = 0; + adapter->default_up = up; +} + +/** + * ngbe_watchdog_link_is_up - update netif_carrier status and + * print link up message + * @adapter - pointer to the device adapter structure + **/ +static void ngbe_watchdog_link_is_up(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ngbe_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 &= ~NGBE_FLAG2_SEARCH_FOR_SFP; + + /* flow_rx, flow_tx report link flow control status */ + flow_rx = (rd32(hw, NGBE_MAC_RX_FLOW_CTRL) & 0x101) == 0x1; + flow_tx = !!(NGBE_RDB_RFCC_RFCE_802_3X & + rd32(hw, NGBE_RDB_RFCC)); + + e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", + (link_speed == NGBE_LINK_SPEED_1GB_FULL ? + "1 Gbps" : + (link_speed == NGBE_LINK_SPEED_100_FULL ? + "100 Mbps" : + (link_speed == NGBE_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 */ + ngbe_update_default_up(adapter); + + /* ping all the active vfs to let them know link has changed */ + ngbe_ping_all_vfs(adapter); +} + +/** + * ngbe_watchdog_link_is_down - update netif_carrier status and + * print link down message + * @adapter - pointer to the adapter structure + **/ +static void ngbe_watchdog_link_is_down(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + adapter->link_up = false; + adapter->link_speed = 0; + + /* only continue if link was up previously */ + if (!netif_carrier_ok(netdev)) + return; + + if (test_bit(__NGBE_PTP_RUNNING, &adapter->state)) + ngbe_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 */ + ngbe_ping_all_vfs(adapter); +} + +static bool ngbe_ring_tx_pending(struct ngbe_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) { + struct ngbe_ring *tx_ring = adapter->tx_ring[i]; + + if (tx_ring->next_to_use != tx_ring->next_to_clean) + return true; + } + + return false; +} + +static bool ngbe_vf_tx_pending(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 q_per_pool = 1; + + 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, + NGBE_PX_TR_RPn(q_per_pool, i, j)); + t = rd32(hw, + NGBE_PX_TR_WPn(q_per_pool, i, j)); + + if (h != t) + return true; + } + } + + return false; +} + +/** + * ngbe_watchdog_flush_tx - flush queues on link down + * @adapter - pointer to the device adapter structure + **/ +static void ngbe_watchdog_flush_tx(struct ngbe_adapter *adapter) +{ + if (!netif_carrier_ok(adapter->netdev)) { + if (ngbe_ring_tx_pending(adapter) || + ngbe_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 |= NGBE_FLAG2_PF_RESET_REQUESTED; + } + } +} + +#ifdef CONFIG_PCI_IOV +static inline void ngbe_issue_vf_flr(struct ngbe_adapter *adapter, + struct pci_dev *vfdev) +{ + int pos, i; + u16 status; + + /* wait for pending transactions on the bus */ + for (i = 0; i < 4; i++) { + if (i) + msleep((1 << (i - 1)) * 100); + + pcie_capability_read_word(vfdev, PCI_EXP_DEVSTA, &status); + if (!(status & PCI_EXP_DEVSTA_TRPND)) + goto clear; + } + + e_dev_warn("Issuing VFLR with pending transactions\n"); + +clear: + pos = pci_find_capability(vfdev, PCI_CAP_ID_EXP); + if (!pos) + return; + + e_dev_err("Issuing VFLR for VF %s\n", pci_name(vfdev)); + pci_write_config_word(vfdev, pos + PCI_EXP_DEVCTL, + PCI_EXP_DEVCTL_BCR_FLR); + msleep(100); +} + + +static void ngbe_spoof_check(struct ngbe_adapter *adapter) +{ + u32 ssvpc; + + /* Do not perform spoof check if in non-IOV mode */ + if (adapter->num_vfs == 0) + return; + ssvpc = rd32(&adapter->hw, NGBE_TDM_SEC_DRP); + + /* + * ssvpc register is cleared on read, if zero then no + * spoofed packets in the last interval. + */ + if (!ssvpc) + return; + + e_warn(drv, "%d Spoofed packets detected\n", ssvpc); +} +#endif /* CONFIG_PCI_IOV */ + +/** + * ngbe_watchdog_subtask - check and bring link up + * @adapter - pointer to the device adapter structure + **/ +static void ngbe_watchdog_subtask(struct ngbe_adapter *adapter) +{ + /* if interface is down do nothing */ + if (test_bit(__NGBE_DOWN, &adapter->state) || + test_bit(__NGBE_REMOVING, &adapter->state) || + test_bit(__NGBE_RESETTING, &adapter->state)) + return; + + ngbe_watchdog_an_complete(adapter); +#ifndef CONFIG_NGBE_POLL_LINK_STATUS + ngbe_watchdog_update_link_status(adapter); + + if (adapter->link_up) + ngbe_watchdog_link_is_up(adapter); + else + ngbe_watchdog_link_is_down(adapter); +#endif +#ifdef CONFIG_PCI_IOV + ngbe_spoof_check(adapter); +#endif /* CONFIG_PCI_IOV */ + + ngbe_update_stats(adapter); + ngbe_watchdog_flush_tx(adapter); +} + +/** + * ngbe_service_timer - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ +static void ngbe_service_timer(struct timer_list *t) +{ + struct ngbe_adapter *adapter = from_timer(adapter, t, service_timer); + unsigned long next_event_offset; + struct ngbe_hw *hw = &adapter->hw; + + /* poll faster when waiting for link */ + if ((adapter->flags & NGBE_FLAG_NEED_LINK_UPDATE) || + (adapter->flags & NGBE_FLAG_NEED_ANC_CHECK)) + next_event_offset = HZ / 10; + else + next_event_offset = HZ * 2; + + if ((rd32(&adapter->hw, NGBE_MIS_PF_SM) == 1) && (hw->bus.lan_id)) { + adapter->flags2 |= NGBE_FLAG2_PCIE_NEED_RECOVER; + } + + /* Reset the timer */ + mod_timer(&adapter->service_timer, next_event_offset + jiffies); + + ngbe_service_event_schedule(adapter); +} + +#ifdef CONFIG_NGBE_POLL_LINK_STATUS +static void ngbe_link_check_timer(struct timer_list *t) +{ + struct ngbe_adapter *adapter = from_timer(adapter, t, link_check_timer); + unsigned long next_event_offset = HZ / 1000; + + mod_timer(&adapter->link_check_timer, next_event_offset + jiffies); + /* if interface is down do nothing */ + if (test_bit(__NGBE_DOWN, &adapter->state) || + test_bit(__NGBE_REMOVING, &adapter->state) || + test_bit(__NGBE_RESETTING, &adapter->state)) + return; + + ngbe_watchdog_update_link_status(adapter); + + if (adapter->link_up) + ngbe_watchdog_link_is_up(adapter); + else + ngbe_watchdog_link_is_down(adapter); +} +#endif + +static void ngbe_reset_subtask(struct ngbe_adapter *adapter) +{ + u32 reset_flag = 0; + u32 value = 0; + + if (!(adapter->flags2 & (NGBE_FLAG2_PF_RESET_REQUESTED | + NGBE_FLAG2_DEV_RESET_REQUESTED | + NGBE_FLAG2_GLOBAL_RESET_REQUESTED | + NGBE_FLAG2_RESET_INTR_RECEIVED))) + return; + + /* If we're already down, just bail */ + if (test_bit(__NGBE_DOWN, &adapter->state) || + test_bit(__NGBE_REMOVING, &adapter->state)) + return; + + netdev_err(adapter->netdev, "Reset adapter\n"); + adapter->tx_timeout_count++; + + rtnl_lock(); + if (adapter->flags2 & NGBE_FLAG2_GLOBAL_RESET_REQUESTED) { + reset_flag |= NGBE_FLAG2_GLOBAL_RESET_REQUESTED; + adapter->flags2 &= ~NGBE_FLAG2_GLOBAL_RESET_REQUESTED; + } + if (adapter->flags2 & NGBE_FLAG2_DEV_RESET_REQUESTED) { + reset_flag |= NGBE_FLAG2_DEV_RESET_REQUESTED; + adapter->flags2 &= ~NGBE_FLAG2_DEV_RESET_REQUESTED; + } + if (adapter->flags2 & NGBE_FLAG2_PF_RESET_REQUESTED) { + reset_flag |= NGBE_FLAG2_PF_RESET_REQUESTED; + adapter->flags2 &= ~NGBE_FLAG2_PF_RESET_REQUESTED; + } + + if (adapter->flags2 & NGBE_FLAG2_RESET_INTR_RECEIVED) { + /* If there's a recovery already waiting, it takes + * precedence before starting a new reset sequence. + */ + adapter->flags2 &= ~NGBE_FLAG2_RESET_INTR_RECEIVED; + value = rd32m(&adapter->hw, NGBE_MIS_RST_ST, + NGBE_MIS_RST_ST_DEV_RST_TYPE_MASK) >> + NGBE_MIS_RST_ST_DEV_RST_TYPE_SHIFT; + if (value == NGBE_MIS_RST_ST_DEV_RST_TYPE_SW_RST) { + adapter->hw.reset_type = NGBE_SW_RESET; + + } else if (value == NGBE_MIS_RST_ST_DEV_RST_TYPE_GLOBAL_RST) + adapter->hw.reset_type = NGBE_GLOBAL_RESET; + adapter->hw.force_full_reset = true; + ngbe_reinit_locked(adapter); + adapter->hw.force_full_reset = false; + goto unlock; + } + + if (reset_flag & NGBE_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 open*/ + /*ngbe_dump(adapter);*/ + + wr32m(&adapter->hw, NGBE_MIS_RST, + NGBE_MIS_RST_SW_RST, NGBE_MIS_RST_SW_RST); + e_info(drv, "ngbe_reset_subtask: sw reset\n"); + + } else if (reset_flag & NGBE_FLAG2_PF_RESET_REQUESTED) { + /*debug to open*/ + /*ngbe_dump(adapter);*/ + ngbe_reinit_locked(adapter); + } else if (reset_flag & NGBE_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 open*/ + /*ngbe_dump(adapter);*/ + pci_save_state(adapter->pdev); + if (ngbe_mng_present(&adapter->hw)) { + ngbe_reset_hostif(&adapter->hw); + e_info(drv, "ngbe_reset_subtask: lan reset\n"); + + } else { + wr32m(&adapter->hw, NGBE_MIS_RST, + NGBE_MIS_RST_GLOBAL_RST, + NGBE_MIS_RST_GLOBAL_RST); + e_info(drv, "ngbe_reset_subtask: global reset\n"); + } + } + +unlock: + rtnl_unlock(); +} + +static void ngbe_check_pcie_subtask(struct ngbe_adapter *adapter) +{ + if (!(adapter->flags2 & NGBE_FLAG2_PCIE_NEED_RECOVER)) + return; + + e_info(probe, "do recovery\n"); + ngbe_pcie_do_recovery(adapter->pdev); + wr32m(&adapter->hw, NGBE_MIS_PF_SM, + NGBE_MIS_PF_SM_SM, 0); + adapter->flags2 &= ~NGBE_FLAG2_PCIE_NEED_RECOVER; +} + + +/** + * ngbe_service_task - manages and runs subtasks + * @work: pointer to work_struct containing our data + **/ +static void ngbe_service_task(struct work_struct *work) +{ + struct ngbe_adapter *adapter = container_of(work, + struct ngbe_adapter, + service_task); + if (NGBE_REMOVED(adapter->hw.hw_addr)) { + if (!test_bit(__NGBE_DOWN, &adapter->state)) { + rtnl_lock(); + ngbe_down(adapter); + rtnl_unlock(); + } + ngbe_service_event_complete(adapter); + return; + } + + ngbe_check_pcie_subtask(adapter); + ngbe_reset_subtask(adapter); + ngbe_check_overtemp_subtask(adapter); + ngbe_watchdog_subtask(adapter); + ngbe_check_hang_subtask(adapter); + + if (test_bit(__NGBE_PTP_RUNNING, &adapter->state)) { + ngbe_ptp_overflow_check(adapter); + if (unlikely(adapter->flags & + NGBE_FLAG_RX_HWTSTAMP_IN_REGISTER)) + ngbe_ptp_rx_hang(adapter); + } + + ngbe_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 ngbe_dptype encode_tx_desc_ptype(const struct ngbe_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 = NGBE_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 = NGBE_PTYPE_TUN_IPV6; + break; + default: + goto exit; + } + + if (tun_prot == IPPROTO_IPIP) { + hdr.raw = (void *)inner_ip_hdr(skb); + ptype |= NGBE_PTYPE_PKT_IPIP; + } else if (tun_prot == IPPROTO_UDP) { + hdr.raw = (void *)inner_ip_hdr(skb); + } 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 |= NGBE_PTYPE_TYP_IPFRAG; + goto exit; + } + break; + case 6: + l4_prot = get_ipv6_proto(skb, + skb_inner_network_offset(skb)); + ptype |= NGBE_PTYPE_PKT_IPV6; + if (l4_prot == NEXTHDR_FRAGMENT) { + ptype |= NGBE_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 = NGBE_PTYPE_PKT_IP; + if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) { + ptype |= NGBE_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 = NGBE_PTYPE_PKT_IP | NGBE_PTYPE_PKT_IPV6; + if (l4_prot == NEXTHDR_FRAGMENT) { + ptype |= NGBE_PTYPE_TYP_IPFRAG; + goto exit; + } + break; +#endif /* NETIF_F_IPV6_CSUM */ + case __constant_htons(ETH_P_1588): + ptype = NGBE_PTYPE_L2_TS; + goto exit; + case __constant_htons(ETH_P_FIP): + ptype = NGBE_PTYPE_L2_FIP; + goto exit; + case __constant_htons(NGBE_ETH_P_LLDP): + ptype = NGBE_PTYPE_L2_LLDP; + goto exit; + case __constant_htons(NGBE_ETH_P_CNM): + ptype = NGBE_PTYPE_L2_CNM; + goto exit; + case __constant_htons(ETH_P_PAE): + ptype = NGBE_PTYPE_L2_EAPOL; + goto exit; + case __constant_htons(ETH_P_ARP): + ptype = NGBE_PTYPE_L2_ARP; + goto exit; + default: + ptype = NGBE_PTYPE_L2_MAC; + goto exit; + } + } + + switch (l4_prot) { + case IPPROTO_TCP: + ptype |= NGBE_PTYPE_TYP_TCP; + break; + case IPPROTO_UDP: + ptype |= NGBE_PTYPE_TYP_UDP; + break; + case IPPROTO_SCTP: + ptype |= NGBE_PTYPE_TYP_SCTP; + break; + default: + ptype |= NGBE_PTYPE_TYP_IP; + break; + } + +exit: + return ngbe_decode_ptype(ptype); +} + +static int ngbe_tso(struct ngbe_ring *tx_ring, + struct ngbe_tx_buffer *first, + u8 *hdr_len, ngbe_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 |= NGBE_TX_FLAGS_TSO | + NGBE_TX_FLAGS_CSUM | + NGBE_TX_FLAGS_IPV4 | + NGBE_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 |= NGBE_TX_FLAGS_TSO | + NGBE_TX_FLAGS_CSUM | + NGBE_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 << NGBE_TXD_L4LEN_SHIFT; + mss_l4len_idx |= skb_shinfo(skb)->gso_size << NGBE_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 |= NGBE_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 = NGBE_TXD_TUNNEL_UDP; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + NGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + NGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_GRE: + tunhdr_eiplen_tunlen = NGBE_TXD_TUNNEL_GRE; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + NGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + NGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_IPIP: + tunhdr_eiplen_tunlen = (((char *)inner_ip_hdr(skb)- + (char *)ip_hdr(skb)) >> 2) << + NGBE_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) << NGBE_TXD_MACLEN_SHIFT; + vlan_macip_lens |= first->tx_flags & NGBE_TX_FLAGS_VLAN_MASK; + + type_tucmd = dptype.ptype << 24; + ngbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, tunhdr_eiplen_tunlen, + type_tucmd, mss_l4len_idx); + + return 1; +} + +static void ngbe_tx_csum(struct ngbe_ring *tx_ring, + struct ngbe_tx_buffer *first, ngbe_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 & NGBE_TX_FLAGS_HW_VLAN) && + !(first->tx_flags & NGBE_TX_FLAGS_CC)) + return; + vlan_macip_lens = skb_network_offset(skb) << + NGBE_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) << + NGBE_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 = NGBE_TXD_TUNNEL_UDP; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + NGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + NGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_GRE: + tunhdr_eiplen_tunlen = NGBE_TXD_TUNNEL_GRE; + tunhdr_eiplen_tunlen |= + ((skb_network_header_len(skb) >> 2) << + NGBE_TXD_OUTER_IPLEN_SHIFT) | + (((skb_inner_mac_header(skb) - + skb_transport_header(skb)) >> 1) << + NGBE_TXD_TUNNEL_LEN_SHIFT); + break; + case IPPROTO_IPIP: + tunhdr_eiplen_tunlen = + (((char *)inner_ip_hdr(skb)- + (char *)ip_hdr(skb)) >> 2) << + NGBE_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) << + NGBE_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) << + NGBE_TXD_L4LEN_SHIFT; + break; + case IPPROTO_SCTP: + mss_l4len_idx = sizeof(struct sctphdr) << + NGBE_TXD_L4LEN_SHIFT; + break; + case IPPROTO_UDP: + mss_l4len_idx = sizeof(struct udphdr) << + NGBE_TXD_L4LEN_SHIFT; + break; + default: + break; + } + + /* update TX checksum flag */ + first->tx_flags |= NGBE_TX_FLAGS_CSUM; + } + first->tx_flags |= NGBE_TX_FLAGS_CC; + /* vlan_macip_lens: MACLEN, VLAN tag */ + vlan_macip_lens |= first->tx_flags & NGBE_TX_FLAGS_VLAN_MASK; + + type_tucmd = dptype.ptype << 24; + ngbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, tunhdr_eiplen_tunlen, + type_tucmd, mss_l4len_idx); +} + +static u32 ngbe_tx_cmd_type(u32 tx_flags) +{ + /* set type for advanced descriptor with frame checksum insertion */ + u32 cmd_type = NGBE_TXD_DTYP_DATA | + NGBE_TXD_IFCS; + + /* set HW vlan bit if vlan is present */ + cmd_type |= NGBE_SET_FLAG(tx_flags, NGBE_TX_FLAGS_HW_VLAN, + NGBE_TXD_VLE); + + /* set segmentation enable bits for TSO/FSO */ + cmd_type |= NGBE_SET_FLAG(tx_flags, NGBE_TX_FLAGS_TSO, + NGBE_TXD_TSE); + + /* set timestamp bit if present */ + cmd_type |= NGBE_SET_FLAG(tx_flags, NGBE_TX_FLAGS_TSTAMP, + NGBE_TXD_MAC_TSTAMP); + + cmd_type |= NGBE_SET_FLAG(tx_flags, NGBE_TX_FLAGS_LINKSEC, + NGBE_TXD_LINKSEC); + + return cmd_type; +} + +static void ngbe_tx_olinfo_status(union ngbe_tx_desc *tx_desc, + u32 tx_flags, unsigned int paylen) +{ + u32 olinfo_status = paylen << NGBE_TXD_PAYLEN_SHIFT; + + /* enable L4 checksum for TSO and TX checksum offload */ + olinfo_status |= NGBE_SET_FLAG(tx_flags, + NGBE_TX_FLAGS_CSUM, + NGBE_TXD_L4CS); + + /* enble IPv4 checksum for TSO */ + olinfo_status |= NGBE_SET_FLAG(tx_flags, + NGBE_TX_FLAGS_IPV4, + NGBE_TXD_IIPCS); + /* enable outer IPv4 checksum for TSO */ + olinfo_status |= NGBE_SET_FLAG(tx_flags, + NGBE_TX_FLAGS_OUTER_IPV4, + NGBE_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 |= NGBE_SET_FLAG(tx_flags, + NGBE_TX_FLAGS_CC, + NGBE_TXD_CC); + + olinfo_status |= NGBE_SET_FLAG(tx_flags, + NGBE_TX_FLAGS_IPSEC, + NGBE_TXD_IPSEC); + + tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); +} + +static int __ngbe_maybe_stop_tx(struct ngbe_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(ngbe_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 ngbe_maybe_stop_tx(struct ngbe_ring *tx_ring, u16 size) +{ + if (likely(ngbe_desc_unused(tx_ring) >= size)) + return 0; + + return __ngbe_maybe_stop_tx(tx_ring, size); +} + +#define NGBE_TXD_CMD (NGBE_TXD_EOP | \ + NGBE_TXD_RS) + +static int ngbe_tx_map(struct ngbe_ring *tx_ring, + struct ngbe_tx_buffer *first, + const u8 hdr_len) +{ + struct sk_buff *skb = first->skb; + struct ngbe_tx_buffer *tx_buffer; + union ngbe_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 = ngbe_tx_cmd_type(tx_flags); + u16 i = tx_ring->next_to_use; + + tx_desc = NGBE_TX_DESC(tx_ring, i); + + ngbe_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 > NGBE_MAX_DATA_PER_TXD)) { + tx_desc->read.cmd_type_len = + cpu_to_le32(cmd_type ^ NGBE_MAX_DATA_PER_TXD); + + i++; + tx_desc++; + if (i == tx_ring->count) { + tx_desc = NGBE_TX_DESC(tx_ring, 0); + i = 0; + } + tx_desc->read.olinfo_status = 0; + + dma += NGBE_MAX_DATA_PER_TXD; + size -= NGBE_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 = NGBE_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 | NGBE_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; + + ngbe_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; +} + +/** + * 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 ngbe_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 ngbe_xmit_frame_ring(struct sk_buff *skb, + struct ngbe_adapter *adapter, + struct ngbe_ring *tx_ring) +{ + struct ngbe_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; + ngbe_dptype dptype; + + /* + * need: 1 descriptor per page * PAGE_SIZE/NGBE_MAX_DATA_PER_TXD, + * + 1 desc for skb_headlen/NGBE_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 (ngbe_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) << NGBE_TX_FLAGS_VLAN_SHIFT; + tx_flags |= NGBE_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) << + NGBE_TX_FLAGS_VLAN_SHIFT; + tx_flags |= NGBE_TX_FLAGS_SW_VLAN; + } + + if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && + adapter->ptp_clock) { + if (!test_and_set_bit_lock(__NGBE_PTP_TX_IN_PROGRESS, + &adapter->state)) { + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + tx_flags |= NGBE_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++; + } + } + +#ifdef CONFIG_PCI_IOV + /* + * Use the l2switch_enable flag - would be false if the DMA + * Tx switch had been disabled. + */ + if (adapter->flags & NGBE_FLAG_SRIOV_L2SWITCH_ENABLE) + tx_flags |= NGBE_TX_FLAGS_CC; + +#endif + /* record initial flags and protocol */ + first->tx_flags = tx_flags; + first->protocol = protocol; + + dptype = encode_tx_desc_ptype(first); + + tso = ngbe_tso(tx_ring, first, &hdr_len, dptype); + if (tso < 0) + goto out_drop; + else if (!tso) + ngbe_tx_csum(tx_ring, first, dptype); + + if (ngbe_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 & NGBE_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(__NGBE_PTP_TX_IN_PROGRESS, &adapter->state); + } + + return NETDEV_TX_OK; +} + +static netdev_tx_t ngbe_xmit_frame(struct sk_buff *skb, + struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_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 ngbe_xmit_frame_ring(skb, adapter, tx_ring); +} + +/** + * ngbe_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 ngbe_set_mac(struct net_device *netdev, void *p) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + ngbe_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); + + ngbe_mac_set_default_filter(adapter, hw->mac.addr); + e_info(drv, "The mac has been set to %02X:%02X:%02X:%02X:%02X:%02X\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]); + + return 0; +} + +static int ngbe_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 = 0; + + prtad = (mii->phy_id & MDIO_PHY_ID_PRTAD) >> 5; + devad = (mii->phy_id & MDIO_PHY_ID_DEVAD); + + return ret; +} + +static int ngbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + switch (cmd) { + case SIOCGHWTSTAMP: + return ngbe_ptp_get_ts_config(adapter, ifr); + case SIOCSHWTSTAMP: + return ngbe_ptp_set_ts_config(adapter, ifr); + case SIOCGMIIREG: + case SIOCSMIIREG: + return ngbe_mii_ioctl(netdev, ifr, cmd); + default: + return -EOPNOTSUPP; + } +} + +/** + * ngbe_setup_tc - routine to configure net_device for multiple traffic + * classes. + * + * @netdev: net device to configure + * @tc: number of traffic classes to enable + */ +int ngbe_setup_tc(struct net_device *dev, u8 tc) +{ + struct ngbe_adapter *adapter = netdev_priv(dev); + + /* 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)) + ngbe_close(dev); + else + ngbe_reset(adapter); + + ngbe_clear_interrupt_scheme(adapter); + + if (tc) { + netdev_set_num_tc(dev, tc); + } else { + netdev_reset_tc(dev); + } + + ngbe_init_interrupt_scheme(adapter); + if (netif_running(dev)) + ngbe_open(dev); + + return 0; +} + +#ifdef CONFIG_PCI_IOV +void ngbe_sriov_reinit(struct ngbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + rtnl_lock(); + ngbe_setup_tc(netdev, netdev_get_num_tc(netdev)); + rtnl_unlock(); +} +#endif + +void ngbe_do_reset(struct net_device *netdev) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + if (netif_running(netdev)) + ngbe_reinit_locked(adapter); + else + ngbe_reset(adapter); +} + +static netdev_features_t ngbe_fix_features(struct net_device *netdev, + netdev_features_t features) +{ + /* 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 */ + features &= ~NETIF_F_LRO; + + return features; +} + +static int ngbe_set_features(struct net_device *netdev, + netdev_features_t features) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + bool need_reset = false; + + if (features & NETIF_F_HW_VLAN_CTAG_RX) + ngbe_vlan_strip_enable(adapter); + else + ngbe_vlan_strip_disable(adapter); + + if (features & NETIF_F_RXHASH) { + if (!(adapter->flags2 & NGBE_FLAG2_RSS_ENABLED)) { + wr32m(&adapter->hw, NGBE_RDB_RA_CTL, + NGBE_RDB_RA_CTL_RSS_EN, NGBE_RDB_RA_CTL_RSS_EN); + adapter->flags2 |= NGBE_FLAG2_RSS_ENABLED; + } + } else { + if (adapter->flags2 & NGBE_FLAG2_RSS_ENABLED) { + wr32m(&adapter->hw, NGBE_RDB_RA_CTL, + NGBE_RDB_RA_CTL_RSS_EN, ~NGBE_RDB_RA_CTL_RSS_EN); + adapter->flags2 &= ~NGBE_FLAG2_RSS_ENABLED; + } + } + + if (need_reset) + ngbe_do_reset(netdev); + + return 0; +} + +static int ngbe_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 (NGBE_MAX_PF_MACVLANS <= netdev_uc_count(dev)) + return -ENOMEM; + } + + return ndo_dflt_fdb_add(ndm, tb, dev, addr, vid, flags); +} + +static int ngbe_ndo_bridge_setlink(struct net_device *dev, + struct nlmsghdr *nlh, + __always_unused u16 flags) +{ + struct ngbe_adapter *adapter = netdev_priv(dev); + struct nlattr *attr, *br_spec; + int rem; + + if (!(adapter->flags & NGBE_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 |= NGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE; + } else if (mode == BRIDGE_MODE_VEB) { + adapter->flags &= ~NGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE; + } else { + return -EINVAL; + } + + adapter->bridge_mode = mode; + + /* re-configure settings related to bridge mode */ + ngbe_configure_bridge_mode(adapter); + + e_info(drv, "enabling bridge mode: %s\n", + mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); + } + + return 0; +} + +static int ngbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, + struct net_device *dev, + u32 __maybe_unused filter_mask, + int nlflags) +{ + struct ngbe_adapter *adapter = netdev_priv(dev); + u16 mode; + + if (!(adapter->flags & NGBE_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 NGBE_MAX_TUNNEL_HDR_LEN 80 +static netdev_features_t ngbe_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) > + NGBE_MAX_TUNNEL_HDR_LEN)) + return features & ~NETIF_F_CSUM_MASK; + } + return features; +} + +static const struct net_device_ops ngbe_netdev_ops = { + .ndo_open = ngbe_open, + .ndo_stop = ngbe_close, + .ndo_start_xmit = ngbe_xmit_frame, + .ndo_set_rx_mode = ngbe_set_rx_mode, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = ngbe_set_mac, + .ndo_change_mtu = ngbe_change_mtu, + .ndo_tx_timeout = ngbe_tx_timeout, + .ndo_vlan_rx_add_vid = ngbe_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = ngbe_vlan_rx_kill_vid, + .ndo_do_ioctl = ngbe_ioctl, + + .ndo_set_vf_mac = ngbe_ndo_set_vf_mac, + .ndo_set_vf_vlan = ngbe_ndo_set_vf_vlan, + /* set_vf_rate not support by emerald */ + .ndo_set_vf_rate = ngbe_ndo_set_vf_bw, + .ndo_set_vf_spoofchk = ngbe_ndo_set_vf_spoofchk, + .ndo_set_vf_trust = ngbe_ndo_set_vf_trust, + .ndo_get_vf_config = ngbe_ndo_get_vf_config, + .ndo_get_stats64 = ngbe_get_stats64, + + .ndo_fdb_add = ngbe_ndo_fdb_add, + + .ndo_bridge_setlink = ngbe_ndo_bridge_setlink, + .ndo_bridge_getlink = ngbe_ndo_bridge_getlink, + + .ndo_features_check = ngbe_features_check, + .ndo_set_features = ngbe_set_features, + .ndo_fix_features = ngbe_fix_features, +}; + +void ngbe_assign_netdev_ops(struct net_device *dev) +{ + dev->netdev_ops = &ngbe_netdev_ops; + ngbe_set_ethtool_ops(dev); + dev->watchdog_timeo = 5 * HZ; +} + +/** + * ngbe_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 ngbe_wol_supported(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + + /* check eeprom to see if WOL is enabled */ + if ((hw->bus.func == 0) || + (hw->bus.func == 1) || + (hw->bus.func == 2) || + (hw->bus.func == 3)) + return true; + else + return false; +} + + +/** + * ngbe_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in ngbe_pci_tbl + * + * Returns 0 on success, negative on failure + * + * ngbe_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 ngbe_probe(struct pci_dev *pdev, + const struct pci_device_id __always_unused *ent) +{ + struct net_device *netdev; + struct ngbe_adapter *adapter = NULL; + struct ngbe_hw *hw = NULL; + static int cards_found; + int err, pci_using_dac, expected_gts; + u32 eeprom_verl = 0; + u32 etrack_id = 0; + char *info_string, *i_s_var; + u32 eeprom_cksum_devcap = 0; + u32 saved_version = 0; + u32 devcap; + + bool disable_dev = false; + + 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), + ngbe_driver_name); + if (err) { + dev_err(pci_dev_to_dev(pdev), + "pci_request_selected_regions failed 0x%x\n", err); + goto err_pci_reg; + } + + 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 ngbe_adapter), NGBE_MAX_TX_QUEUES); + 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; + } + + /* autoneg default on */ + hw->mac.autoneg = true; + + /* assign netdev ops and ethtool ops */ + ngbe_assign_netdev_ops(netdev); + + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + + adapter->bd_number = cards_found; + + /* setup the private structure */ + err = ngbe_sw_init(adapter); + if (err) + goto err_sw_init; + + /* + * check_options must be called before setup_link to set up + * hw->fc completely + */ + ngbe_check_options(adapter); + + TCALL(hw, mac.ops.set_lan_id); + + /* check if flash load is done after hw power up */ + err = ngbe_check_flash_load(hw, NGBE_SPI_ILDR_STATUS_PERST); + if (err) + goto err_sw_init; + err = ngbe_check_flash_load(hw, NGBE_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) { + e_dev_err("HW reset failed: %d\n", err); + goto err_sw_init; + } + +#ifdef CONFIG_PCI_IOV + if (adapter->num_vfs > 0) { + e_dev_warn("Enabling SR-IOV VFs using the max_vfs module " + "parameter is deprecated.\n"); + e_dev_warn("Please use the pci sysfs interface instead. Ex:\n"); + e_dev_warn("echo '%d' > /sys/bus/pci/devices/%04x:%02x:%02x.%1x" + "/sriov_numvfs\n", + adapter->num_vfs, + pci_domain_nr(pdev->bus), + pdev->bus->number, + PCI_SLOT(pdev->devfn), + PCI_FUNC(pdev->devfn)); + } + + if (adapter->flags & NGBE_FLAG_SRIOV_CAPABLE) { + pci_sriov_set_totalvfs(pdev, NGBE_MAX_VFS_DRV_LIMIT); + ngbe_enable_sriov(adapter); + } +#endif /* CONFIG_PCI_IOV */ + + 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 |= ngbe_tso_features(); + + if (adapter->flags2 & NGBE_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; + + /* 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; + + 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; + + netdev->priv_flags |= IFF_UNICAST_FLT; + netdev->priv_flags |= IFF_SUPP_NOFCS; + + /* MTU range: 68 - 9414 */ + netdev->min_mtu = ETH_MIN_MTU; + netdev->max_mtu = NGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN); + + if (pci_using_dac) { + netdev->features |= NETIF_F_HIGHDMA; + + netdev->vlan_features |= NETIF_F_HIGHDMA; + + } + + if (hw->bus.lan_id == 0) { + wr32(hw, NGBE_CALSUM_CAP_STATUS, 0x0); + wr32(hw, NGBE_EEPROM_VERSION_STORE_REG, 0x0); + } else { + eeprom_cksum_devcap = rd32(hw, NGBE_CALSUM_CAP_STATUS); + saved_version = rd32(hw, NGBE_EEPROM_VERSION_STORE_REG); + } + + TCALL(hw, eeprom.ops.init_params); + TCALL(hw, mac.ops.release_swfw_sync, NGBE_MNG_SWFW_SYNC_SW_MB); + if (hw->bus.lan_id == 0 || eeprom_cksum_devcap == 0) { + /* make sure the EEPROM is good */ + if (TCALL(hw, eeprom.ops.eeprom_chksum_cap_st, NGBE_CALSUM_COMMAND, &devcap)) { + 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; + } + + ngbe_mac_set_default_filter(adapter, hw->mac.perm_addr); + + timer_setup(&adapter->service_timer, ngbe_service_timer, 0); +#ifdef CONFIG_NGBE_POLL_LINK_STATUS + timer_setup(&adapter->link_check_timer, ngbe_link_check_timer, 0); +#endif + if (NGBE_REMOVED(hw->hw_addr)) { + err = -EIO; + goto err_sw_init; + } + INIT_WORK(&adapter->service_task, ngbe_service_task); + set_bit(__NGBE_SERVICE_INITED, &adapter->state); + clear_bit(__NGBE_SERVICE_SCHED, &adapter->state); + + err = ngbe_init_interrupt_scheme(adapter); + if (err) + goto err_sw_init; + + /* WOL not supported for all devices */ + adapter->wol = 0; + if (hw->bus.lan_id == 0 || eeprom_cksum_devcap == 0) { + TCALL(hw, eeprom.ops.read, + hw->eeprom.sw_region_offset + NGBE_DEVICE_CAPS, + &adapter->eeprom_cap); + /*only support in LAN0*/ + adapter->eeprom_cap = NGBE_DEVICE_CAPS_WOL_PORT0; + } else { + adapter->eeprom_cap = eeprom_cksum_devcap & 0xffff; + } + if (ngbe_wol_supported(adapter)) + adapter->wol = NGBE_PSR_WKUP_CTL_MAG; + if ((hw->subsystem_device_id & WOL_SUP_MASK) == WOL_SUP) { + /*enable wol first in shadow ram*/ + ngbe_write_ee_hostif(hw, 0x7FE, 0xa50F); + ngbe_write_ee_hostif(hw, 0x7FF, 0x5a5a); + } + hw->wol_enabled = !!(adapter->wol); + wr32(hw, NGBE_PSR_WKUP_CTL, 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 + */ + if (hw->bus.lan_id == 0 || saved_version == 0) { + TCALL(hw, eeprom.ops.read32, + hw->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L, + &eeprom_verl); + etrack_id = eeprom_verl; + wr32(hw, NGBE_EEPROM_VERSION_STORE_REG, etrack_id); + wr32(hw, NGBE_CALSUM_CAP_STATUS, 0x10000 | (u32)adapter->eeprom_cap); + } else if (eeprom_cksum_devcap) { + etrack_id = saved_version; + } else { + TCALL(hw, eeprom.ops.read32, + hw->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L, + &eeprom_verl); + etrack_id = eeprom_verl; + } + + /* Make sure offset to SCSI block is valid */ + 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 == NGBE_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, err = %d\n", err); + 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; + + /* + * call save state here in standalone driver because it relies on + * adapter struct to exist, and needs to call netdev_priv + */ + pci_save_state(pdev); + + /* 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 = ngbe_enumerate_functions(adapter) * 10; + + /* don't check link if we failed to enumerate functions */ + if (expected_gts > 0) + ngbe_check_minimum_link(adapter, expected_gts); + + TCALL(hw, mac.ops.set_fw_drv_ver, 0xFF, 0xFF, 0xFF, 0xFF); + + if (((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP) || + ((hw->subsystem_device_id & OEM_MASK) == OCP_CARD)) + e_info(probe, "NCSI : support"); + else + e_info(probe, "NCSI : unsupported"); + + e_info(probe, "PHY: %s, PBA No: Wang Xun GbE Family Controller\n", + hw->phy.type == ngbe_phy_internal?"Internal":"External"); + + e_info(probe, "%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 & NGBE_FLAG_TPH_ENABLED) + i_s_var += sprintf(i_s_var, "TPH "); + + 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: + +#ifdef CONFIG_PCI_IOV + if (adapter->flags & NGBE_FLAG_SRIOV_ENABLED) { + int i; + for (i = 0; i < adapter->num_vfs; i++) + ngbe_vf_configuration(pdev, (i | 0x10000000)); + } +#endif + + e_info(probe, "WangXun(R) Gigabit Network Connection\n"); + cards_found++; + +#ifdef CONFIG_NGBE_SYSFS + if (ngbe_sysfs_init(adapter)) + e_err(probe, "failed to allocate sysfs resources\n"); +#else +#ifdef CONFIG_NGBE_PROCFS + if (ngbe_procfs_init(adapter)) + e_err(probe, "failed to allocate procfs resources\n"); +#endif /* CONFIG_NGBE_PROCFS */ +#endif /* CONFIG_NGBE_SYSFS */ + + +#ifdef CONFIG_NGBE_DEBUG_FS + ngbe_dbg_adapter_init(adapter); +#endif /* CONFIG_NGBE_DEBUG_FS */ + + return 0; + +err_register: + ngbe_clear_interrupt_scheme(adapter); + ngbe_release_hw_control(adapter); +err_sw_init: +#ifdef CONFIG_PCI_IOV + ngbe_disable_sriov(adapter); +#endif /* CONFIG_PCI_IOV */ + adapter->flags2 &= ~NGBE_FLAG2_SEARCH_FOR_SFP; + kfree(adapter->mac_table); + iounmap(adapter->io_addr); +err_ioremap: + disable_dev = !test_and_set_bit(__NGBE_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; +} + +/** + * ngbe_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * ngbe_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 ngbe_remove(struct pci_dev *pdev) +{ + struct ngbe_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; +#ifdef CONFIG_NGBE_DEBUG_FS + ngbe_dbg_adapter_exit(adapter); +#endif + + set_bit(__NGBE_REMOVING, &adapter->state); + cancel_work_sync(&adapter->service_task); + +#ifdef CONFIG_NGBE_SYSFS + ngbe_sysfs_exit(adapter); +#else +#ifdef CONFIG_NGBE_PROCFS + ngbe_procfs_exit(adapter); +#endif +#endif /* CONFIG_NGBE_SYSFS */ + if (adapter->netdev_registered) { + unregister_netdev(netdev); + adapter->netdev_registered = false; + } + +#ifdef CONFIG_PCI_IOV + ngbe_disable_sriov(adapter); +#endif + + ngbe_clear_interrupt_scheme(adapter); + ngbe_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(__NGBE_DISABLED, &adapter->state); + free_netdev(netdev); + + pci_disable_pcie_error_reporting(pdev); + + if (disable_dev) + pci_disable_device(pdev); +} + +static bool ngbe_check_cfg_remove(struct ngbe_hw *hw, struct pci_dev *pdev) +{ + u16 value; + + pci_read_config_word(pdev, PCI_VENDOR_ID, &value); + if (value == NGBE_FAILED_READ_CFG_WORD) { + ngbe_remove_adapter(hw); + return true; + } + return false; +} + +u16 ngbe_read_pci_cfg_word(struct ngbe_hw *hw, u32 reg) +{ + struct ngbe_adapter *adapter = hw->back; + u16 value; + + if (NGBE_REMOVED(hw->hw_addr)) + return NGBE_FAILED_READ_CFG_WORD; + pci_read_config_word(adapter->pdev, reg, &value); + if (value == NGBE_FAILED_READ_CFG_WORD && + ngbe_check_cfg_remove(hw, adapter->pdev)) + return NGBE_FAILED_READ_CFG_WORD; + return value; +} + +#ifdef CONFIG_PCI_IOV +static u32 ngbe_read_pci_cfg_dword(struct ngbe_hw *hw, u32 reg) +{ + struct ngbe_adapter *adapter = hw->back; + u32 value; + + if (NGBE_REMOVED(hw->hw_addr)) + return NGBE_FAILED_READ_CFG_DWORD; + pci_read_config_dword(adapter->pdev, reg, &value); + if (value == NGBE_FAILED_READ_CFG_DWORD && + ngbe_check_cfg_remove(hw, adapter->pdev)) + return NGBE_FAILED_READ_CFG_DWORD; + return value; +} +#endif /* CONFIG_PCI_IOV */ + +void ngbe_write_pci_cfg_word(struct ngbe_hw *hw, u32 reg, u16 value) +{ + struct ngbe_adapter *adapter = hw->back; + + if (NGBE_REMOVED(hw->hw_addr)) + return; + pci_write_config_word(adapter->pdev, reg, value); +} + +/** + * ngbe_io_error_detected - called when PCI error is detected + * @pdev: Pointer to PCI device + * @state: The current pci connection state + * + * This function is called after a PCI bus error affecting + * this device has been detected. + */ +static pci_ers_result_t ngbe_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct ngbe_adapter *adapter = pci_get_drvdata(pdev); + struct net_device *netdev = adapter->netdev; + +#ifdef CONFIG_PCI_IOV + struct ngbe_hw *hw = &adapter->hw; + struct pci_dev *bdev, *vfdev; + u32 dw0, dw1, dw2, dw3; + int vf, pos; + u16 req_id, pf_func; + + if (adapter->num_vfs == 0) + goto skip_bad_vf_detection; + + bdev = pdev->bus->self; + while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT)) + bdev = bdev->bus->self; + + if (!bdev) + goto skip_bad_vf_detection; + + pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); + if (!pos) + goto skip_bad_vf_detection; + + dw0 = ngbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG); + dw1 = ngbe_read_pci_cfg_dword(hw, + pos + PCI_ERR_HEADER_LOG + 4); + dw2 = ngbe_read_pci_cfg_dword(hw, + pos + PCI_ERR_HEADER_LOG + 8); + dw3 = ngbe_read_pci_cfg_dword(hw, + pos + PCI_ERR_HEADER_LOG + 12); + if (NGBE_REMOVED(hw->hw_addr)) + goto skip_bad_vf_detection; + + req_id = dw1 >> 16; + /* if bit 7 of the requestor ID is set then it's a VF */ + if (!(req_id & 0x0080)) + goto skip_bad_vf_detection; + + pf_func = req_id & 0x01; + if ((pf_func & 1) == (pdev->devfn & 1)) { + vf = (req_id & 0x7F) >> 1; + e_dev_err("VF %d has caused a PCIe error\n", vf); + e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " + "%8.8x\tdw3: %8.8x\n", + dw0, dw1, dw2, dw3); + + /* Find the pci device of the offending VF */ + vfdev = pci_get_device(PCI_VENDOR_ID_TRUSTNETIC, + NGBE_VF_DEVICE_ID, NULL); + while (vfdev) { + if (vfdev->devfn == (req_id & 0xFF)) + break; + vfdev = pci_get_device(PCI_VENDOR_ID_TRUSTNETIC, + NGBE_VF_DEVICE_ID, vfdev); + } + /* + * There's a slim chance the VF could have been hot + * plugged, so if it is no longer present we don't need + * to issue the VFLR.Just clean up the AER in that case. + */ + if (vfdev) { + ngbe_issue_vf_flr(adapter, vfdev); + /* Free device reference count */ + pci_dev_put(vfdev); + } + + pci_cleanup_aer_uncorrect_error_status(pdev); + } + + /* + * Even though the error may have occurred on the other port + * we still need to increment the vf error reference count for + * both ports because the I/O resume function will be called + * for both of them. + */ + adapter->vferr_refcount++; + + return PCI_ERS_RESULT_RECOVERED; + + skip_bad_vf_detection: +#endif /* CONFIG_PCI_IOV */ + + if (!test_bit(__NGBE_SERVICE_INITED, &adapter->state)) + return PCI_ERS_RESULT_DISCONNECT; + + rtnl_lock(); + netif_device_detach(netdev); + + if (state == pci_channel_io_perm_failure) { + rtnl_unlock(); + return PCI_ERS_RESULT_DISCONNECT; + } + + if (netif_running(netdev)) + ngbe_close(netdev); + + if (!test_and_set_bit(__NGBE_DISABLED, &adapter->state)) + pci_disable_device(pdev); + rtnl_unlock(); + + /* Request a slot reset. */ + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * ngbe_io_slot_reset - called after the pci bus has been reset. + * @pdev: Pointer to PCI device + * + * Restart the card from scratch, as if from a cold-boot. + */ +static pci_ers_result_t ngbe_io_slot_reset(struct pci_dev *pdev) +{ + struct ngbe_adapter *adapter = pci_get_drvdata(pdev); + pci_ers_result_t result = PCI_ERS_RESULT_RECOVERED; + + if (pci_enable_device_mem(pdev)) { + e_err(probe, "Cannot re-enable PCI device after reset.\n"); + result = PCI_ERS_RESULT_DISCONNECT; + } else { + smp_mb__before_atomic(); + clear_bit(__NGBE_DISABLED, &adapter->state); + adapter->hw.hw_addr = adapter->io_addr; + pci_set_master(pdev); + pci_restore_state(pdev); + /* + * After second error pci->state_saved is false, this + * resets it so EEH doesn't break. + */ + pci_save_state(pdev); + + pci_wake_from_d3(pdev, false); + + ngbe_reset(adapter); + + result = PCI_ERS_RESULT_RECOVERED; + } + + pci_cleanup_aer_uncorrect_error_status(pdev); + + return result; +} + +/** + * ngbe_io_resume - called when traffic can start flowing again. + * @pdev: Pointer to PCI device + * + * This callback is called when the error recovery driver tells us that + * its OK to resume normal operation. + */ +static void ngbe_io_resume(struct pci_dev *pdev) +{ + struct ngbe_adapter *adapter = pci_get_drvdata(pdev); + struct net_device *netdev = adapter->netdev; + +#ifdef CONFIG_PCI_IOV + if (adapter->vferr_refcount) { + e_info(drv, "Resuming after VF err\n"); + adapter->vferr_refcount--; + return; + } +#endif + rtnl_lock(); + if (netif_running(netdev)) + ngbe_open(netdev); + + netif_device_attach(netdev); + rtnl_unlock(); +} + +static const struct pci_error_handlers ngbe_err_handler = { + .error_detected = ngbe_io_error_detected, + .slot_reset = ngbe_io_slot_reset, + .resume = ngbe_io_resume, +}; + +struct net_device *ngbe_hw_to_netdev(const struct ngbe_hw *hw) +{ + return ((struct ngbe_adapter *)hw->back)->netdev; +} +struct ngbe_msg *ngbe_hw_to_msg(const struct ngbe_hw *hw) +{ + struct ngbe_adapter *adapter = + container_of(hw, struct ngbe_adapter, hw); + return (struct ngbe_msg *)&adapter->msg_enable; +} + +static struct pci_driver ngbe_driver = { + .name = ngbe_driver_name, + .id_table = ngbe_pci_tbl, + .probe = ngbe_probe, + .remove = ngbe_remove, +#ifdef CONFIG_PM + .suspend = ngbe_suspend, + .resume = ngbe_resume, +#endif + .shutdown = ngbe_shutdown, + .sriov_configure = ngbe_pci_sriov_configure, + .err_handler = &ngbe_err_handler +}; + +/** + * ngbe_init_module - Driver Registration Routine + * + * ngbe_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + **/ +static int __init ngbe_init_module(void) +{ + int ret; + pr_info("%s - version %s\n", ngbe_driver_string, ngbe_driver_version); + pr_info("%s\n", ngbe_copyright); + + ngbe_wq = create_singlethread_workqueue(ngbe_driver_name); + if (!ngbe_wq) { + pr_err("%s: Failed to create workqueue\n", ngbe_driver_name); + return -ENOMEM; + } + +#ifdef CONFIG_NGBE_PROCFS + if (ngbe_procfs_topdir_init()) + pr_info("Procfs failed to initialize topdir\n"); +#endif + +#ifdef CONFIG_NGBE_DEBUG_FS + ngbe_dbg_init(); +#endif + + ret = pci_register_driver(&ngbe_driver); + return ret; +} + +module_init(ngbe_init_module); + +/** + * ngbe_exit_module - Driver Exit Cleanup Routine + * + * ngbe_exit_module is called just before the driver is removed + * from memory. + **/ +static void __exit ngbe_exit_module(void) +{ + pci_unregister_driver(&ngbe_driver); +#ifdef CONFIG_NGBE_PROCFS + ngbe_procfs_topdir_exit(); +#endif + destroy_workqueue(ngbe_wq); +#ifdef CONFIG_NGBE_DEBUG_FS + ngbe_dbg_exit(); +#endif /* CONFIG_NGBE_DEBUG_FS */ +} + +module_exit(ngbe_exit_module); + +/* ngbe_main.c */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_mbx.c b/drivers/net/ethernet/netswift/ngbe/ngbe_mbx.c new file mode 100644 index 0000000000000..34167f78c207f --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_mbx.c @@ -0,0 +1,687 @@ +/* + * WangXun 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 "ngbe_type.h" +#include "ngbe.h" +#include "ngbe_mbx.h" + + +/** + * ngbe_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 ngbe_read_mbx(struct ngbe_hw *hw, u32 *msg, u16 size, u16 mbx_id) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + int err = NGBE_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; +} + +/** + * ngbe_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 ngbe_write_mbx(struct ngbe_hw *hw, u32 *msg, u16 size, u16 mbx_id) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + int err = 0; + + if (size > mbx->size) { + err = NGBE_ERR_MBX; + ERROR_REPORT2(NGBE_ERROR_ARGUMENT, + "Invalid mailbox message size %d", size); + } else + err = TCALL(hw, mbx.ops.write, msg, size, mbx_id); + + return err; +} + +/** + * ngbe_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 ngbe_check_for_msg(struct ngbe_hw *hw, u16 mbx_id) +{ + int err = NGBE_ERR_MBX; + + err = TCALL(hw, mbx.ops.check_for_msg, mbx_id); + + return err; +} + +/** + * ngbe_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 ngbe_check_for_ack(struct ngbe_hw *hw, u16 mbx_id) +{ + int err = NGBE_ERR_MBX; + + err = TCALL(hw, mbx.ops.check_for_ack, mbx_id); + + return err; +} + +/** + * ngbe_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 ngbe_check_for_rst(struct ngbe_hw *hw, u16 mbx_id) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + int err = NGBE_ERR_MBX; + + if (mbx->ops.check_for_rst) + err = mbx->ops.check_for_rst(hw, mbx_id); + + return err; +} + +/** + * ngbe_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 ngbe_poll_for_msg(struct ngbe_hw *hw, u16 mbx_id) +{ + struct ngbe_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(NGBE_ERROR_POLLING, + "Polling for VF%d mailbox message timedout", mbx_id); + +out: + return countdown ? 0 : NGBE_ERR_MBX; +} + +/** + * ngbe_poll_for_ack - Wait for message acknowledngbeent + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to write + * + * returns SUCCESS if it successfully received a message acknowledngbeent + **/ +int ngbe_poll_for_ack(struct ngbe_hw *hw, u16 mbx_id) +{ + struct ngbe_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(NGBE_ERROR_POLLING, + "Polling for VF%d mailbox ack timedout", mbx_id); + +out: + return countdown ? 0 : NGBE_ERR_MBX; +} + +/** + * ngbe_read_posted_mbx - Wait for message notification and receive message + * @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 received a message notification and + * copied it into the receive buffer. + **/ +int ngbe_read_posted_mbx(struct ngbe_hw *hw, u32 *msg, u16 size, u16 mbx_id) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + int err = NGBE_ERR_MBX; + + if (!mbx->ops.read) + goto out; + + err = ngbe_poll_for_msg(hw, mbx_id); + + /* if ack received read message, otherwise we timed out */ + if (!err) + err = TCALL(hw, mbx.ops.read, msg, size, mbx_id); +out: + return err; +} + +/** + * ngbe_write_posted_mbx - Write a message to the mailbox, wait for ack + * @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 and + * received an ack to that message within delay * timeout period + **/ +int ngbe_write_posted_mbx(struct ngbe_hw *hw, u32 *msg, u16 size, + u16 mbx_id) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + int err; + + /* exit if either we can't write or there isn't a defined timeout */ + if (!mbx->timeout) + return NGBE_ERR_MBX; + + /* send msg */ + err = TCALL(hw, mbx.ops.write, msg, size, mbx_id); + + /* if msg sent wait until we receive an ack */ + if (!err) + err = ngbe_poll_for_ack(hw, mbx_id); + + return err; +} + +/** + * ngbe_init_mbx_ops - Initialize MB function pointers + * @hw: pointer to the HW structure + * + * Setups up the mailbox read and write message function pointers + **/ +void ngbe_init_mbx_ops(struct ngbe_hw *hw) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + + mbx->ops.read_posted = ngbe_read_posted_mbx; + mbx->ops.write_posted = ngbe_write_posted_mbx; +} + +/** + * ngbe_read_v2p_mailbox - read v2p mailbox + * @hw: pointer to the HW structure + * + * This function is used to read the v2p mailbox without losing the read to + * clear status bits. + **/ +u32 ngbe_read_v2p_mailbox(struct ngbe_hw *hw) +{ + u32 v2p_mailbox = rd32(hw, NGBE_VXMAILBOX); + + v2p_mailbox |= hw->mbx.v2p_mailbox; + hw->mbx.v2p_mailbox |= v2p_mailbox & NGBE_VXMAILBOX_R2C_BITS; + + return v2p_mailbox; +} + +/** + * ngbe_check_for_bit_vf - Determine if a status bit was set + * @hw: pointer to the HW structure + * @mask: bitmask for bits to be tested and cleared + * + * This function is used to check for the read to clear bits within + * the V2P mailbox. + **/ +int ngbe_check_for_bit_vf(struct ngbe_hw *hw, u32 mask) +{ + u32 mailbox = ngbe_read_v2p_mailbox(hw); + + hw->mbx.v2p_mailbox &= ~mask; + + return (mailbox & mask ? 0 : NGBE_ERR_MBX); +} + +/** + * ngbe_check_for_msg_vf - checks to see if the PF has sent mail + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to check + * + * returns SUCCESS if the PF has set the Status bit or else ERR_MBX + **/ +int ngbe_check_for_msg_vf(struct ngbe_hw *hw, u16 mbx_id) +{ + int err = NGBE_ERR_MBX; + + UNREFERENCED_PARAMETER(mbx_id); + + /* read clear the pf sts bit */ + if (!ngbe_check_for_bit_vf(hw, NGBE_VXMAILBOX_PFSTS)) { + err = 0; + hw->mbx.stats.reqs++; + } + + return err; +} + +/** + * ngbe_check_for_ack_vf - checks to see if the PF has ACK'd + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to check + * + * returns SUCCESS if the PF has set the ACK bit or else ERR_MBX + **/ +int ngbe_check_for_ack_vf(struct ngbe_hw *hw, u16 mbx_id) +{ + int err = NGBE_ERR_MBX; + + UNREFERENCED_PARAMETER(mbx_id); + + /* read clear the pf ack bit */ + if (!ngbe_check_for_bit_vf(hw, NGBE_VXMAILBOX_PFACK)) { + err = 0; + hw->mbx.stats.acks++; + } + + return err; +} + +/** + * ngbe_check_for_rst_vf - checks to see if the PF has reset + * @hw: pointer to the HW structure + * @mbx_id: id of mailbox to check + * + * returns true if the PF has set the reset done bit or else false + **/ +int ngbe_check_for_rst_vf(struct ngbe_hw *hw, u16 mbx_id) +{ + int err = NGBE_ERR_MBX; + + UNREFERENCED_PARAMETER(mbx_id); + if (!ngbe_check_for_bit_vf(hw, (NGBE_VXMAILBOX_RSTD | + NGBE_VXMAILBOX_RSTI))) { + err = 0; + hw->mbx.stats.rsts++; + } + + return err; +} + +/** + * ngbe_obtain_mbx_lock_vf - obtain mailbox lock + * @hw: pointer to the HW structure + * + * return SUCCESS if we obtained the mailbox lock + **/ +int ngbe_obtain_mbx_lock_vf(struct ngbe_hw *hw) +{ + int err = NGBE_ERR_MBX; + u32 mailbox; + + /* Take ownership of the buffer */ + wr32(hw, NGBE_VXMAILBOX, NGBE_VXMAILBOX_VFU); + + /* reserve mailbox for vf use */ + mailbox = ngbe_read_v2p_mailbox(hw); + if (mailbox & NGBE_VXMAILBOX_VFU) + err = 0; + else + ERROR_REPORT2(NGBE_ERROR_POLLING, + "Failed to obtain mailbox lock for VF"); + + return err; +} + +/** + * ngbe_write_mbx_vf - 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 ngbe_write_mbx_vf(struct ngbe_hw *hw, u32 *msg, u16 size, + u16 mbx_id) +{ + int err; + u16 i; + + UNREFERENCED_PARAMETER(mbx_id); + + /* lock the mailbox to prevent pf/vf race condition */ + err = ngbe_obtain_mbx_lock_vf(hw); + if (err) + goto out_no_write; + + /* flush msg and acks as we are overwriting the message buffer */ + ngbe_check_for_msg_vf(hw, 0); + ngbe_check_for_ack_vf(hw, 0); + + /* copy the caller specified message to the mailbox memory buffer */ + for (i = 0; i < size; i++) + wr32a(hw, NGBE_VXMBMEM, i, msg[i]); + + /* update stats */ + hw->mbx.stats.msgs_tx++; + + /* Drop VFU and interrupt the PF to tell it a message has been sent */ + wr32(hw, NGBE_VXMAILBOX, NGBE_VXMAILBOX_REQ); + +out_no_write: + return err; +} + +/** + * ngbe_read_mbx_vf - Reads a message from the inbox intended for vf + * @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 ngbe_read_mbx_vf(struct ngbe_hw *hw, u32 *msg, u16 size, + u16 mbx_id) +{ + int err = 0; + u16 i; + UNREFERENCED_PARAMETER(mbx_id); + + /* lock the mailbox to prevent pf/vf race condition */ + err = ngbe_obtain_mbx_lock_vf(hw); + if (err) + goto out_no_read; + + /* copy the message from the mailbox memory buffer */ + for (i = 0; i < size; i++) + msg[i] = rd32a(hw, NGBE_VXMBMEM, i); + + /* Acknowledge receipt and release mailbox, then we're done */ + wr32(hw, NGBE_VXMAILBOX, NGBE_VXMAILBOX_ACK); + + /* update stats */ + hw->mbx.stats.msgs_rx++; + +out_no_read: + return err; +} + +/** + * ngbe_init_mbx_params_vf - set initial values for vf mailbox + * @hw: pointer to the HW structure + * + * Initializes the hw->mbx struct to correct values for vf mailbox + */ +void ngbe_init_mbx_params_vf(struct ngbe_hw *hw) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + + /* start mailbox as timed out and let the reset_hw call set the timeout + * value to begin communications */ + mbx->timeout = 0; + mbx->udelay = NGBE_VF_MBX_INIT_DELAY; + + mbx->size = NGBE_VXMAILBOX_SIZE; + + mbx->ops.read = ngbe_read_mbx_vf; + mbx->ops.write = ngbe_write_mbx_vf; + mbx->ops.read_posted = ngbe_read_posted_mbx; + mbx->ops.write_posted = ngbe_write_posted_mbx; + mbx->ops.check_for_msg = ngbe_check_for_msg_vf; + mbx->ops.check_for_ack = ngbe_check_for_ack_vf; + mbx->ops.check_for_rst = ngbe_check_for_rst_vf; + + mbx->stats.msgs_tx = 0; + mbx->stats.msgs_rx = 0; + mbx->stats.reqs = 0; + mbx->stats.acks = 0; + mbx->stats.rsts = 0; +} + +int ngbe_check_for_bit_pf(struct ngbe_hw *hw, u32 mask) +{ + u32 mbvficr = rd32(hw, NGBE_MBVFICR); + int err = NGBE_ERR_MBX; + + if (mbvficr & mask) { + err = 0; + wr32(hw, NGBE_MBVFICR, mask); + } + + return err; +} + +/** + * ngbe_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 ngbe_check_for_msg_pf(struct ngbe_hw *hw, u16 vf) +{ + int err = NGBE_ERR_MBX; + u32 vf_bit = vf; + + if (!ngbe_check_for_bit_pf(hw, NGBE_MBVFICR_VFREQ_VF1 << vf_bit)) { + err = 0; + hw->mbx.stats.reqs++; + } + + return err; +} + +/** + * ngbe_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 ngbe_check_for_ack_pf(struct ngbe_hw *hw, u16 vf) +{ + int err = NGBE_ERR_MBX; + u32 vf_bit = vf; + + if (!ngbe_check_for_bit_pf(hw, NGBE_MBVFICR_VFACK_VF1 << vf_bit)) { + err = 0; + hw->mbx.stats.acks++; + } + + return err; +} + +/** + * ngbe_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 ngbe_check_for_rst_pf(struct ngbe_hw *hw, u16 vf) +{ + u32 vflre = 0; + int err = NGBE_ERR_MBX; + + vflre = rd32(hw, NGBE_VFLRE); + + if (vflre & (1 << vf)) { + err = 0; + wr32(hw, NGBE_VFLREC, (1 << vf)); + hw->mbx.stats.rsts++; + } + + return err; +} + +/** + * ngbe_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 ngbe_obtain_mbx_lock_pf(struct ngbe_hw *hw, u16 vf) +{ + int err = NGBE_ERR_MBX; + u32 mailbox; + + /* Take ownership of the buffer */ + wr32(hw, NGBE_PXMAILBOX(vf), NGBE_PXMAILBOX_PFU); + + /* reserve mailbox for vf use */ + mailbox = rd32(hw, NGBE_PXMAILBOX(vf)); + if (mailbox & NGBE_PXMAILBOX_PFU) + err = 0; + else + ERROR_REPORT2(NGBE_ERROR_POLLING, + "Failed to obtain mailbox lock for PF%d", vf); + + return err; +} + +/** + * ngbe_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 ngbe_write_mbx_pf(struct ngbe_hw *hw, u32 *msg, u16 size, + u16 vf) +{ + int err; + u16 i; + + /* lock the mailbox to prevent pf/vf race condition */ + err = ngbe_obtain_mbx_lock_pf(hw, vf); + if (err) + goto out_no_write; + + /* flush msg and acks as we are overwriting the message buffer */ + ngbe_check_for_msg_pf(hw, vf); + ngbe_check_for_ack_pf(hw, vf); + + /* copy the caller specified message to the mailbox memory buffer */ + for (i = 0; i < size; i++) + wr32a(hw, NGBE_PXMBMEM(vf), i, msg[i]); + + /* Interrupt VF to tell it a message has been sent and release buffer*/ + wr32(hw, NGBE_PXMAILBOX(vf), NGBE_PXMAILBOX_STS); + + /* update stats */ + hw->mbx.stats.msgs_tx++; + +out_no_write: + return err; +} + +/** + * ngbe_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 ngbe_read_mbx_pf(struct ngbe_hw *hw, u32 *msg, u16 size, + u16 vf) +{ + int err; + u16 i; + + /* lock the mailbox to prevent pf/vf race condition */ + err = ngbe_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, NGBE_PXMBMEM(vf), i); + + /* Acknowledge the message and release buffer */ + wr32(hw, NGBE_PXMAILBOX(vf), NGBE_PXMAILBOX_ACK); + + /* update stats */ + hw->mbx.stats.msgs_rx++; + +out_no_read: + return err; +} + +/** + * ngbe_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 ngbe_init_mbx_params_pf(struct ngbe_hw *hw) +{ + struct ngbe_mbx_info *mbx = &hw->mbx; + + mbx->timeout = 0; + mbx->udelay = 0; + + mbx->size = NGBE_VXMAILBOX_SIZE; + + mbx->ops.read = ngbe_read_mbx_pf; + mbx->ops.write = ngbe_write_mbx_pf; + mbx->ops.read_posted = ngbe_read_posted_mbx; + mbx->ops.write_posted = ngbe_write_posted_mbx; + mbx->ops.check_for_msg = ngbe_check_for_msg_pf; + mbx->ops.check_for_ack = ngbe_check_for_ack_pf; + mbx->ops.check_for_rst = ngbe_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/ngbe/ngbe_mbx.h b/drivers/net/ethernet/netswift/ngbe/ngbe_mbx.h new file mode 100644 index 0000000000000..5e89fa180f968 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_mbx.h @@ -0,0 +1,167 @@ +/* + * WangXun 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 _NGBE_MBX_H_ +#define _NGBE_MBX_H_ + +#define NGBE_VXMAILBOX_SIZE (16) + +/** + * VF Registers + **/ +#define NGBE_VXMAILBOX 0x00600 +#define NGBE_VXMAILBOX_REQ ((0x1) << 0) /* Request for PF Ready bit */ +#define NGBE_VXMAILBOX_ACK ((0x1) << 1) /* Ack PF message received */ +#define NGBE_VXMAILBOX_VFU ((0x1) << 2) /* VF owns the mailbox buffer */ +#define NGBE_VXMAILBOX_PFU ((0x1) << 3) /* PF owns the mailbox buffer */ +#define NGBE_VXMAILBOX_PFSTS ((0x1) << 4) /* PF wrote a message in the MB */ +#define NGBE_VXMAILBOX_PFACK ((0x1) << 5) /* PF ack the previous VF msg */ +#define NGBE_VXMAILBOX_RSTI ((0x1) << 6) /* PF has reset indication */ +#define NGBE_VXMAILBOX_RSTD ((0x1) << 7) /* PF has indicated reset done */ +#define NGBE_VXMAILBOX_R2C_BITS (NGBE_VXMAILBOX_RSTD | \ + NGBE_VXMAILBOX_PFSTS | NGBE_VXMAILBOX_PFACK) + +#define NGBE_VXMBMEM 0x00C00 /* 16*4B */ + +/** + * PF Registers + **/ +#define NGBE_PXMAILBOX(i) (0x00600 + (4 * (i))) /* i=[0,7] */ +#define NGBE_PXMAILBOX_STS ((0x1) << 0) /* Initiate message send to VF */ +#define NGBE_PXMAILBOX_ACK ((0x1) << 1) /* Ack message recv'd from VF */ +#define NGBE_PXMAILBOX_VFU ((0x1) << 2) /* VF owns the mailbox buffer */ +#define NGBE_PXMAILBOX_PFU ((0x1) << 3) /* PF owns the mailbox buffer */ +#define NGBE_PXMAILBOX_RVFU ((0x1) << 4) /* Reset VFU - used when VF stuck*/ + +#define NGBE_PXMBMEM(i) (0x5000 + (64 * (i))) /* i=[0,7] */ + +#define NGBE_VFLRP(i) (0x00490 + (4 * (i))) /* i=[0,1] */ +#define NGBE_VFLRE 0x004A0 +#define NGBE_VFLREC 0x004A8 + +/* SR-IOV specific macros */ +#define NGBE_MBVFICR 0x00480 +#define NGBE_MBVFICR_INDEX(vf) ((vf) >> 4) +#define NGBE_MBVFICR_VFREQ_MASK (0x0000FFFF) /* bits for VF messages */ +#define NGBE_MBVFICR_VFREQ_VF1 (0x00000001) /* bit for VF 1 message */ +#define NGBE_MBVFICR_VFACK_MASK (0xFFFF0000) /* bits for VF acks */ +#define NGBE_MBVFICR_VFACK_VF1 (0x00010000) /* bit for VF 1 ack */ + +/** + * Messages + **/ +/* If it's a NGBE_VF_* msg then it originates in the VF and is sent to the + * PF. The reverse is true if it is NGBE_PF_*. + * Message ACK's are the value or'd with 0xF0000000 + */ +#define NGBE_VT_MSGTYPE_ACK 0x80000000 /* Messages below or'd with + * this are the ACK */ +#define NGBE_VT_MSGTYPE_NACK 0x40000000 /* Messages below or'd with + * this are the NACK */ +#define NGBE_VT_MSGTYPE_CTS 0x20000000 /* Indicates that VF is still + * clear to send requests */ +#define NGBE_VT_MSGINFO_SHIFT 16 +/* bits 23:16 are used for extra info for certain messages */ +#define NGBE_VT_MSGINFO_MASK (0xFF << NGBE_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 ngbe_pfvf_api_rev { + ngbe_mbox_api_null, + ngbe_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */ + ngbe_mbox_api_11, /* API version 1.1, linux/freebsd VF driver */ + ngbe_mbox_api_12, /* API version 1.2, linux/freebsd VF driver */ + ngbe_mbox_api_13, /* API version 1.3, linux/freebsd VF driver */ + ngbe_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */ + ngbe_mbox_api_unknown, /* indicates that API version is not known */ +}; + +/* mailbox API, legacy requests */ +#define NGBE_VF_RESET 0x01 /* VF requests reset */ +#define NGBE_VF_SET_MAC_ADDR 0x02 /* VF requests PF to set MAC addr */ +#define NGBE_VF_SET_MULTICAST 0x03 /* VF requests PF to set MC addr */ +#define NGBE_VF_SET_VLAN 0x04 /* VF requests PF to set VLAN */ + +/* mailbox API, version 1.0 VF requests */ +#define NGBE_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */ +#define NGBE_VF_SET_MACVLAN 0x06 /* VF requests PF for unicast filter */ +#define NGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */ + +/* mailbox API, version 1.1 VF requests */ +#define NGBE_VF_GET_QUEUES 0x09 /* get queue configuration */ + +/* mailbox API, version 1.2 VF requests */ +#define NGBE_VF_GET_RETA 0x0a /* VF request for RETA */ +#define NGBE_VF_GET_RSS_KEY 0x0b /* get RSS key */ +#define NGBE_VF_UPDATE_XCAST_MODE 0x0c +#define NGBE_VF_BACKUP 0x8001 /* VF requests backup */ + +#define NGBE_VF_GET_LINK_STATUS 0x20 /* VF get link status from PF */ + +/* mode choices for IXGBE_VF_UPDATE_XCAST_MODE */ +enum ngbevf_xcast_modes { + NGBEVF_XCAST_MODE_NONE = 0, + NGBEVF_XCAST_MODE_MULTI, + NGBEVF_XCAST_MODE_ALLMULTI, + NGBEVF_XCAST_MODE_PROMISC, +}; + +/* GET_QUEUES return data indices within the mailbox */ +#define NGBE_VF_TX_QUEUES 1 /* number of Tx queues supported */ +#define NGBE_VF_RX_QUEUES 2 /* number of Rx queues supported */ +#define NGBE_VF_TRANS_VLAN 3 /* Indication of port vlan */ +#define NGBE_VF_DEF_QUEUE 4 /* Default queue offset */ + +/* length of permanent address message returned from PF */ +#define NGBE_VF_PERMADDR_MSG_LEN 4 +/* word in permanent address message with the current multicast type */ +#define NGBE_VF_MC_TYPE_WORD 3 + +#define NGBE_PF_CONTROL_MSG 0x0100 /* PF control message */ + +/* mailbox API, version 2.0 VF requests */ +#define NGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */ +#define NGBE_VF_GET_QUEUES 0x09 /* get queue configuration */ +#define NGBE_VF_ENABLE_MACADDR 0x0A /* enable MAC address */ +#define NGBE_VF_DISABLE_MACADDR 0x0B /* disable MAC address */ +#define NGBE_VF_GET_MACADDRS 0x0C /* get all configured MAC addrs */ +#define NGBE_VF_SET_MCAST_PROMISC 0x0D /* enable multicast promiscuous */ +#define NGBE_VF_GET_MTU 0x0E /* get bounds on MTU */ +#define NGBE_VF_SET_MTU 0x0F /* set a specific MTU */ + +/* mailbox API, version 2.0 PF requests */ +#define NGBE_PF_TRANSPARENT_VLAN 0x0101 /* enable transparent vlan */ + +#define NGBE_VF_MBX_INIT_TIMEOUT 2000 /* number of retries on mailbox */ +#define NGBE_VF_MBX_INIT_DELAY 500 /* microseconds between retries */ + +int ngbe_read_mbx(struct ngbe_hw *, u32 *, u16, u16); +int ngbe_write_mbx(struct ngbe_hw *, u32 *, u16, u16); +int ngbe_read_posted_mbx(struct ngbe_hw *, u32 *, u16, u16); +int ngbe_write_posted_mbx(struct ngbe_hw *, u32 *, u16, u16); +int ngbe_check_for_msg(struct ngbe_hw *, u16); +int ngbe_check_for_ack(struct ngbe_hw *, u16); +int ngbe_check_for_rst(struct ngbe_hw *, u16); +void ngbe_init_mbx_ops(struct ngbe_hw *hw); +void ngbe_init_mbx_params_vf(struct ngbe_hw *); +void ngbe_init_mbx_params_pf(struct ngbe_hw *); + +#endif /* _NGBE_MBX_H_ */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_param.c b/drivers/net/ethernet/netswift/ngbe/ngbe_param.c new file mode 100644 index 0000000000000..92f0dd0f32734 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_param.c @@ -0,0 +1,839 @@ +/* + * WangXun 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 <linux/types.h> +#include <linux/module.h> + +#include "ngbe.h" + +/* This is the only thing that needs to be changed to adjust the + * maximum number of ports that the driver can manage. + */ +#define NGBE_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) + +/* All parameters are treated the same, as an integer array of values. + * This macro just reduces the need to repeat the same declaration code + * over and over (plus this helps to avoid typo bugs). + */ + +#define NGBE_PARAM_INIT { [0 ... NGBE_MAX_NIC] = OPTION_UNSET } + +#define NGBE_PARAM(X, desc) \ + static int X[NGBE_MAX_NIC + 1] = NGBE_PARAM_INIT; \ + static unsigned int num_##X; \ + module_param_array(X, int, &num_##X, 0); \ + MODULE_PARM_DESC(X, desc); + +/* IntMode (Interrupt Mode) + * + * Valid Range: 0-2 + * - 0 - Legacy Interrupt + * - 1 - MSI Interrupt + * - 2 - MSI-X Interrupt(s) + * + * Default Value: 2 + */ +NGBE_PARAM(InterruptType, "Change Interrupt Mode (0=Legacy, 1=MSI, 2=MSI-X), " + "default IntMode (deprecated)"); +NGBE_PARAM(IntMode, "Change Interrupt Mode (0=Legacy, 1=MSI, 2=MSI-X), " + "default 2"); +#define NGBE_INT_LEGACY 0 +#define NGBE_INT_MSI 1 +#define NGBE_INT_MSIX 2 +#define NGBE_DEFAULT_INT NGBE_INT_MSIX + +/* MQ - Multiple Queue enable/disable + * + * Valid Range: 0, 1 + * - 0 - disables MQ + * - 1 - enables MQ + * + * Default Value: 1 + */ + +NGBE_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 + */ + +NGBE_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 NGBE_DEFAULT_NUM_VMDQ 8 + +NGBE_PARAM(VMDQ, "Number of Virtual Machine Device Queues: 0/1 = disable, " + "2-16 enable (default=" XSTRINGIFY(NGBE_DEFAULT_NUM_VMDQ) ")"); + +#ifdef CONFIG_PCI_IOV +/* max_vfs - SR I/O Virtualization + * + * Valid Range: 0-63 + * - 0 Disables SR-IOV + * - 1-63 - enables SR-IOV and sets the number of VFs enabled + * + * Default Value: 0 + */ + +#define MAX_SRIOV_VFS 8 + +NGBE_PARAM(max_vfs, "Number of Virtual Functions: 0 = disable (default), " + "1-" XSTRINGIFY(MAX_SRIOV_VFS) " = enable " + "this many VFs"); + +/* VEPA - Set internal bridge to VEPA mode + * + * Valid Range: 0-1 + * - 0 Set bridge to VEB mode + * - 1 Set bridge to VEPA mode + * + * Default Value: 0 + */ +/* + *Note: + *===== + * This provides ability to ensure VEPA mode on the internal bridge even if + * the kernel does not support the netdev bridge setting operations. +*/ +NGBE_PARAM(VEPA, "VEPA Bridge Mode: 0 = VEB (default), 1 = VEPA"); +#endif + +/* Interrupt Throttle Rate (interrupts/sec) + * + * Valid Range: 980-500000 (0=off, 1=dynamic) + * + * Default Value: 1 + */ +#define DEFAULT_ITR 1 +NGBE_PARAM(InterruptThrottleRate, "Maximum interrupts per second, per vector, " + "(0,1,980-500000), default 1"); +#define MAX_ITR NGBE_MAX_INT_RATE +#define MIN_ITR NGBE_MIN_INT_RATE + +#ifndef CONFIG_NGBE_NO_LLI + +/* LLIPort (Low Latency Interrupt TCP Port) + * + * Valid Range: 0 - 65535 + * + * Default Value: 0 (disabled) + */ +NGBE_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) + */ +NGBE_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) + */ +NGBE_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) + */ +NGBE_PARAM(LLIVLANP, "Low Latency Interrupt on VLAN priority threshold"); + +#define DEFAULT_LLIVLANP 0 +#define MAX_LLIVLANP 7 +#define MIN_LLIVLANP 0 + +#endif /* CONFIG_NGBE_NO_LLI */ + +/* Software ATR packet sample rate + * + * Valid Range: 0-255 0 = off, 1-255 = rate of Tx packet inspection + * + * Default Value: 20 + */ +NGBE_PARAM(AtrSampleRate, "Software ATR Tx packet sample rate"); + +#define NGBE_MAX_ATR_SAMPLE_RATE 255 +#define NGBE_MIN_ATR_SAMPLE_RATE 1 +#define NGBE_ATR_SAMPLE_RATE_OFF 0 +#define NGBE_DEFAULT_ATR_SAMPLE_RATE 20 + +/* Enable/disable Large Receive Offload + * + * Valid Values: 0(off), 1(on) + * + * Default Value: 1 + */ +NGBE_PARAM(LRO, "Large Receive Offload (0,1), default 1 = on"); + +/* Enable/disable support for DMA coalescing + * + * Valid Values: 0(off), 41 - 10000(on) + * + * Default Value: 0 + */ +NGBE_PARAM(dmac_watchdog, + "DMA coalescing watchdog in microseconds (0,41-10000)," + "default 0 = off"); + +/* Rx buffer mode + * + * Valid Range: 0-1 0 = no header split, 1 = hdr split + * + * Default Value: 0 + */ +NGBE_PARAM(RxBufferMode, "0=(default)no header split\n" + "\t\t\t1=hdr split for recognized packet\n"); + +#define NGBE_RXBUFMODE_NO_HEADER_SPLIT 0 +#define NGBE_RXBUFMODE_HEADER_SPLIT 1 +#define NGBE_DEFAULT_RXBUFMODE NGBE_RXBUFMODE_NO_HEADER_SPLIT + +struct ngbe_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 ngbe_opt_list { + int i; + char *str; + } *p; + } l; + } arg; +}; + +static int ngbe_validate_option(u32 *value, + struct ngbe_option *opt) +{ + int val = (int)*value; + + if (val == OPTION_UNSET) { + ngbe_info("ngbe: 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: + ngbe_info("ngbe: %s Enabled\n", opt->name); + return 0; + case OPTION_DISABLED: + ngbe_info("ngbe: %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) + ngbe_info("ngbe: %s set to %d, %s\n", + opt->name, val, opt->msg); + else + ngbe_info("ngbe: %s set to %d\n", + opt->name, val); + return 0; + } + break; + case list_option: { + int i; + const struct ngbe_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') + ngbe_info("%s\n", ent->str); + return 0; + } + } + } + break; + default: + BUG_ON(1); + } + + ngbe_info("ngbe: Invalid %s specified (%d), %s\n", + opt->name, val, opt->err); + *value = (u32)opt->def; + return -1; +} + +/** + * ngbe_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 ngbe_check_options(struct ngbe_adapter *adapter) +{ + u32 bd = adapter->bd_number; + u32 *aflags = &adapter->flags; + struct ngbe_ring_feature *feature = adapter->ring_feature; + u32 vmdq; + + if (bd >= NGBE_MAX_NIC) { + ngbe_notice("Warning: no configuration for board #%d\n", bd); + ngbe_notice("Using defaults for all values\n"); + } + + { /* Interrupt Mode */ + u32 int_mode; + static struct ngbe_option opt = { + .type = range_option, + .name = "Interrupt Mode", + .err = + "using default of "__MODULE_STRING(NGBE_DEFAULT_INT), + .def = NGBE_DEFAULT_INT, + .arg = { .r = { .min = NGBE_INT_LEGACY, + .max = NGBE_INT_MSIX} } + }; + + if (num_IntMode > bd || num_InterruptType > bd) { + int_mode = IntMode[bd]; + if (int_mode == OPTION_UNSET) + int_mode = InterruptType[bd]; + ngbe_validate_option(&int_mode, &opt); + switch (int_mode) { + case NGBE_INT_MSIX: + if (!(*aflags & NGBE_FLAG_MSIX_CAPABLE)) + ngbe_info( + "Ignoring MSI-X setting; " + "support unavailable\n"); + break; + case NGBE_INT_MSI: + if (!(*aflags & NGBE_FLAG_MSI_CAPABLE)) { + ngbe_info( + "Ignoring MSI setting; " + "support unavailable\n"); + } else { + *aflags &= ~NGBE_FLAG_MSIX_CAPABLE; + } + break; + case NGBE_INT_LEGACY: + default: + *aflags &= ~NGBE_FLAG_MSIX_CAPABLE; + *aflags &= ~NGBE_FLAG_MSI_CAPABLE; + break; + } + } else { + /* default settings */ + if (opt.def == NGBE_INT_MSIX && + *aflags & NGBE_FLAG_MSIX_CAPABLE) { + *aflags |= NGBE_FLAG_MSIX_CAPABLE; + *aflags |= NGBE_FLAG_MSI_CAPABLE; + } else if (opt.def == NGBE_INT_MSI && + *aflags & NGBE_FLAG_MSI_CAPABLE) { + *aflags &= ~NGBE_FLAG_MSIX_CAPABLE; + *aflags |= NGBE_FLAG_MSI_CAPABLE; + } else { + *aflags &= ~NGBE_FLAG_MSIX_CAPABLE; + *aflags &= ~NGBE_FLAG_MSI_CAPABLE; + } + } + } + { /* Multiple Queue Support */ + static struct ngbe_option opt = { + .type = enable_option, + .name = "Multiple Queue Support", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_MQ > bd) { + u32 mq = MQ[bd]; + ngbe_validate_option(&mq, &opt); + if (mq) + *aflags |= NGBE_FLAG_MQ_CAPABLE; + else + *aflags &= ~NGBE_FLAG_MQ_CAPABLE; + } else { + if (opt.def == OPTION_ENABLED) + *aflags |= NGBE_FLAG_MQ_CAPABLE; + else + *aflags &= ~NGBE_FLAG_MQ_CAPABLE; + } + /* Check Interoperability */ + if ((*aflags & NGBE_FLAG_MQ_CAPABLE) && + !(*aflags & NGBE_FLAG_MSIX_CAPABLE)) { + DPRINTK(PROBE, INFO, + "Multiple queues are not supported while MSI-X " + "is disabled. Disabling Multiple Queues.\n"); + *aflags &= ~NGBE_FLAG_MQ_CAPABLE; + } + } + + { /* Receive-Side Scaling (RSS) */ + static struct ngbe_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 = ngbe_max_rss_indices(adapter); + + if (num_RSS > bd) { + ngbe_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()); + + feature[RING_F_RSS].limit = (u16)rss; + } else if (opt.def == 0) { + rss = min_t(int, ngbe_max_rss_indices(adapter), + num_online_cpus()); + feature[RING_F_RSS].limit = rss; + } + /* Check Interoperability */ + if (rss > 1) { + if (!(*aflags & NGBE_FLAG_MQ_CAPABLE)) { + DPRINTK(PROBE, INFO, + "Multiqueue is disabled. " + "Limiting RSS.\n"); + feature[RING_F_RSS].limit = 1; + } + } + adapter->flags2 |= NGBE_FLAG2_RSS_ENABLED; + } + { /* Virtual Machine Device Queues (VMDQ) */ + static struct ngbe_option opt = { + .type = range_option, + .name = "Virtual Machine Device Queues (VMDQ)", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED, + .arg = { .r = { .min = OPTION_DISABLED, + .max = NGBE_MAX_VMDQ_INDICES + } } + }; + + if (num_VMDQ > bd) { + vmdq = VMDQ[bd]; + + ngbe_validate_option(&vmdq, &opt); + + /* zero or one both mean disabled from our driver's + * perspective */ + if (vmdq > 1) { + *aflags |= NGBE_FLAG_VMDQ_ENABLED; + } else + *aflags &= ~NGBE_FLAG_VMDQ_ENABLED; + + feature[RING_F_VMDQ].limit = (u16)vmdq; + } else { + if (opt.def == OPTION_DISABLED) + *aflags &= ~NGBE_FLAG_VMDQ_ENABLED; + else + *aflags |= NGBE_FLAG_VMDQ_ENABLED; + + feature[RING_F_VMDQ].limit = opt.def; + } + + /* Check Interoperability */ + if (*aflags & NGBE_FLAG_VMDQ_ENABLED) { + if (!(*aflags & NGBE_FLAG_MQ_CAPABLE)) { + DPRINTK(PROBE, INFO, + "VMDQ is not supported while multiple " + "queues are disabled. " + "Disabling VMDQ.\n"); + *aflags &= ~NGBE_FLAG_VMDQ_ENABLED; + feature[RING_F_VMDQ].limit = 0; + } + } + } +#ifdef CONFIG_PCI_IOV + { /* Single Root I/O Virtualization (SR-IOV) */ + static struct ngbe_option opt = { + .type = range_option, + .name = "I/O Virtualization (IOV)", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED, + .arg = { .r = { .min = OPTION_DISABLED, + .max = MAX_SRIOV_VFS} } + }; + + if (num_max_vfs > bd) { + u32 vfs = max_vfs[bd]; + if (ngbe_validate_option(&vfs, &opt)) { + vfs = 0; + DPRINTK(PROBE, INFO, + "max_vfs out of range " + "Disabling SR-IOV.\n"); + } + + adapter->num_vfs = vfs; + + if (vfs) + *aflags |= NGBE_FLAG_SRIOV_ENABLED; + else + *aflags &= ~NGBE_FLAG_SRIOV_ENABLED; + } else { + if (opt.def == OPTION_DISABLED) { + adapter->num_vfs = 0; + *aflags &= ~NGBE_FLAG_SRIOV_ENABLED; + } else { + adapter->num_vfs = opt.def; + *aflags |= NGBE_FLAG_SRIOV_ENABLED; + } + } + + /* Check Interoperability */ + if (*aflags & NGBE_FLAG_SRIOV_ENABLED) { + if (!(*aflags & NGBE_FLAG_SRIOV_CAPABLE)) { + DPRINTK(PROBE, INFO, + "IOV is not supported on this " + "hardware. Disabling IOV.\n"); + *aflags &= ~NGBE_FLAG_SRIOV_ENABLED; + adapter->num_vfs = 0; + } else if (!(*aflags & NGBE_FLAG_MQ_CAPABLE)) { + DPRINTK(PROBE, INFO, + "IOV is not supported while multiple " + "queues are disabled. " + "Disabling IOV.\n"); + *aflags &= ~NGBE_FLAG_SRIOV_ENABLED; + adapter->num_vfs = 0; + } + } + } + { /* VEPA Bridge Mode enable for SR-IOV mode */ + static struct ngbe_option opt = { + .type = range_option, + .name = "VEPA Bridge Mode Enable", + .err = "defaulting to disabled", + .def = OPTION_DISABLED, + .arg = { .r = { .min = OPTION_DISABLED, + .max = OPTION_ENABLED} } + }; + + if (num_VEPA > bd) { + u32 vepa = VEPA[bd]; + ngbe_validate_option(&vepa, &opt); + if (vepa) + adapter->flags |= + NGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE; + } else { + if (opt.def == OPTION_ENABLED) + adapter->flags |= + NGBE_FLAG_SRIOV_VEPA_BRIDGE_MODE; + } + } +#endif /* CONFIG_PCI_IOV */ + { /* Interrupt Throttling Rate */ + static struct ngbe_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: + ngbe_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; + } + } +#ifndef CONFIG_NGBE_NO_LLI + { /* Low Latency Interrupt TCP Port*/ + static struct ngbe_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) { + ngbe_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 ngbe_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) { + ngbe_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 ngbe_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) { + ngbe_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 ngbe_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) { + ngbe_validate_option(&adapter->lli_vlan_pri, + &opt); + } else { + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + } + } else { + adapter->lli_vlan_pri = opt.def; + } + } +#endif /* CONFIG_NGBE_NO_LLI */ + + { /* Flow Director ATR Tx sample packet rate */ + static struct ngbe_option opt = { + .type = range_option, + .name = "Software ATR Tx packet sample rate", + .err = "using default of " + __MODULE_STRING(NGBE_DEFAULT_ATR_SAMPLE_RATE), + .def = NGBE_DEFAULT_ATR_SAMPLE_RATE, + .arg = {.r = {.min = NGBE_ATR_SAMPLE_RATE_OFF, + .max = NGBE_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) { + ngbe_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 ngbe_option opt = { + .type = enable_option, + .name = "LRO - Large Receive Offload", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED + }; + struct net_device *netdev = adapter->netdev; + opt.def = OPTION_DISABLED; + + if (num_LRO > bd) { + u32 lro = LRO[bd]; + ngbe_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)) { + DPRINTK(PROBE, INFO, + "RSC is not supported on this " + "hardware. Disabling RSC.\n"); + netdev->features &= ~NETIF_F_LRO; + } + } + { /* DMA Coalescing */ + struct ngbe_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]; + + ngbe_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; + } + } + + { /* Rx buffer mode */ + u32 rx_buf_mode; + static struct ngbe_option opt = { + .type = range_option, + .name = "Rx buffer mode", + .err = "using default of " + __MODULE_STRING(NGBE_DEFAULT_RXBUFMODE), + .def = NGBE_DEFAULT_RXBUFMODE, + .arg = {.r = {.min = NGBE_RXBUFMODE_NO_HEADER_SPLIT, + .max = NGBE_RXBUFMODE_HEADER_SPLIT} } + + }; + + if (num_RxBufferMode > bd) { + rx_buf_mode = RxBufferMode[bd]; + ngbe_validate_option(&rx_buf_mode, &opt); + switch (rx_buf_mode) { + case NGBE_RXBUFMODE_NO_HEADER_SPLIT: + *aflags &= ~NGBE_FLAG_RX_HS_ENABLED; + break; + case NGBE_RXBUFMODE_HEADER_SPLIT: + *aflags |= NGBE_FLAG_RX_HS_ENABLED; + break; + default: + break; + } + } else { + *aflags &= ~NGBE_FLAG_RX_HS_ENABLED; + } + } +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.c b/drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.c new file mode 100644 index 0000000000000..8d47bfabd6ad8 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.c @@ -0,0 +1,257 @@ +/* + * WangXun 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 <linux/delay.h> +#include <linux/pci.h> +#include "ngbe_pcierr.h" +#include "ngbe.h" + +#define NGBE_ROOT_PORT_INTR_ON_MESG_MASK (PCI_ERR_ROOT_CMD_COR_EN| \ + PCI_ERR_ROOT_CMD_NONFATAL_EN| \ + PCI_ERR_ROOT_CMD_FATAL_EN) + +#ifndef PCI_ERS_RESULT_NO_AER_DRIVER +/* No AER capabilities registered for the driver */ +#define PCI_ERS_RESULT_NO_AER_DRIVER ((__force pci_ers_result_t) 6) +#endif + +static pci_ers_result_t merge_result(enum pci_ers_result orig, + enum pci_ers_result new) +{ + if (new == PCI_ERS_RESULT_NO_AER_DRIVER) + return PCI_ERS_RESULT_NO_AER_DRIVER; + if (new == PCI_ERS_RESULT_NONE) + return orig; + switch (orig) { + case PCI_ERS_RESULT_CAN_RECOVER: + case PCI_ERS_RESULT_RECOVERED: + orig = new; + break; + case PCI_ERS_RESULT_DISCONNECT: + if (new == PCI_ERS_RESULT_NEED_RESET) + orig = PCI_ERS_RESULT_NEED_RESET; + break; + default: + break; + } + return orig; +} + +static int ngbe_report_error_detected(struct pci_dev *dev, + enum pci_channel_state state, + enum pci_ers_result *result) +{ + pci_ers_result_t vote; + const struct pci_error_handlers *err_handler; + + device_lock(&dev->dev); + if ( + !dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->error_detected) { + /* + * If any device in the subtree does not have an error_detected + * callback, PCI_ERS_RESULT_NO_AER_DRIVER prevents subsequent + * error callbacks of "any" device in the subtree, and will + * exit in the disconnected error state. + */ + if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) + vote = PCI_ERS_RESULT_NO_AER_DRIVER; + else + vote = PCI_ERS_RESULT_NONE; + } else { + err_handler = dev->driver->err_handler; + vote = err_handler->error_detected(dev, state); + } + + *result = merge_result(*result, vote); + device_unlock(&dev->dev); + return 0; +} + +static int ngbe_report_frozen_detected(struct pci_dev *dev, void *data) +{ + return ngbe_report_error_detected(dev, pci_channel_io_frozen, data); +} + +static int ngbe_report_mmio_enabled(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote, *result = data; + const struct pci_error_handlers *err_handler; + + device_lock(&dev->dev); + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->mmio_enabled) + goto out; + + err_handler = dev->driver->err_handler; + vote = err_handler->mmio_enabled(dev); + *result = merge_result(*result, vote); +out: + device_unlock(&dev->dev); + return 0; +} + +static int ngbe_report_slot_reset(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote, *result = data; + const struct pci_error_handlers *err_handler; + + device_lock(&dev->dev); + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->slot_reset) + goto out; + + err_handler = dev->driver->err_handler; + vote = err_handler->slot_reset(dev); + *result = merge_result(*result, vote); +out: + device_unlock(&dev->dev); + return 0; +} + +static int ngbe_report_resume(struct pci_dev *dev, void *data) +{ + const struct pci_error_handlers *err_handler; + + device_lock(&dev->dev); + dev->error_state = pci_channel_io_normal; + if ( + !dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->resume) + goto out; + + err_handler = dev->driver->err_handler; + err_handler->resume(dev); +out: + device_unlock(&dev->dev); + return 0; +} + +void ngbe_pcie_do_recovery(struct pci_dev *dev) +{ + pci_ers_result_t status = PCI_ERS_RESULT_CAN_RECOVER; + struct pci_bus *bus; + u32 reg32; + int pos; + int delay = 1; + u32 id; + u16 ctrl; + /* + * Error recovery runs on all subordinates of the first downstream port. + * If the downstream port detected the error, it is cleared at the end. + */ + if (!(pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT || + pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM)) + dev = dev->bus->self; + bus = dev->subordinate; + + pci_walk_bus(bus, ngbe_report_frozen_detected, &status); + pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + if (pos) { + /* Disable Root's interrupt in response to error messages */ + pci_read_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, &reg32); + reg32 &= ~NGBE_ROOT_PORT_INTR_ON_MESG_MASK; + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32); + } + + pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &ctrl); + ctrl |= PCI_BRIDGE_CTL_BUS_RESET; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl); + + /* + * * PCI spec v3.0 7.6.4.2 requires minimum Trst of 1ms. Double + * * this to 2ms to ensure that we meet the minimum requirement. + * */ + + msleep(2); + ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl); + + /* + * * Trhfa for conventional PCI is 2^25 clock cycles. + * * Assuming a minimum 33MHz clock this results in a 1s + * * delay before we can consider subordinate devices to + * * be re-initialized. PCIe has some ways to shorten this, + * * but we don't make use of them yet. + * */ + ssleep(1); + + pci_read_config_dword(dev, PCI_COMMAND, &id); + while (id == ~0) { + if (delay > 60000) { + pci_warn(dev, "not ready %dms after %s; giving up\n", + delay - 1, "bus_reset"); + return; + } + + if (delay > 1000) + pci_info(dev, "not ready %dms after %s; waiting\n", + delay - 1, "bus_reset"); + + msleep(delay); + delay *= 2; + pci_read_config_dword(dev, PCI_COMMAND, &id); + } + + if (delay > 1000) + pci_info(dev, "ready %dms after %s\n", delay - 1, + "bus_reset"); + + pci_info(dev, "Root Port link has been reset\n"); + + if (pos) { + /* Clear Root Error Status */ + pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &reg32); + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, reg32); + + /* Enable Root Port's interrupt in response to error messages */ + pci_read_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, &reg32); + reg32 |= NGBE_ROOT_PORT_INTR_ON_MESG_MASK; + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32); + } + + if (status == PCI_ERS_RESULT_CAN_RECOVER) { + status = PCI_ERS_RESULT_RECOVERED; + pci_dbg(dev, "broadcast mmio_enabled message\n"); + pci_walk_bus(bus, ngbe_report_mmio_enabled, &status); + } + + if (status == PCI_ERS_RESULT_NEED_RESET) { + /* + * TODO: Should call platform-specific + * functions to reset slot before calling + * drivers' slot_reset callbacks? + */ + status = PCI_ERS_RESULT_RECOVERED; + pci_dbg(dev, "broadcast slot_reset message\n"); + pci_walk_bus(bus, ngbe_report_slot_reset, &status); + } + + if (status != PCI_ERS_RESULT_RECOVERED) + goto failed; + + pci_dbg(dev, "broadcast resume message\n"); + pci_walk_bus(bus, ngbe_report_resume, &status); + +failed: + return; +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.h b/drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.h new file mode 100644 index 0000000000000..f92def4d21667 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_pcierr.h @@ -0,0 +1,23 @@ +/* + * WangXun 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 _NGBE_PCIERR_H_ +#define _NGBE_PCIERR_H_ + +void ngbe_pcie_do_recovery(struct pci_dev *dev); +#endif diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_phy.c b/drivers/net/ethernet/netswift/ngbe/ngbe_phy.c new file mode 100644 index 0000000000000..2f9013c291a11 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_phy.c @@ -0,0 +1,1243 @@ +/* + * WangXun 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 "ngbe_phy.h" + +/** + * ngbe_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. + **/ +bool ngbe_check_reset_blocked(struct ngbe_hw *hw) +{ + u32 mmngc; + + DEBUGFUNC("ngbe_check_reset_blocked"); + + mmngc = rd32(hw, NGBE_MIS_ST); + if (mmngc & NGBE_MIS_ST_MNG_VETO) { + ERROR_REPORT1(NGBE_ERROR_SOFTWARE, + "MNG_VETO bit detected.\n"); + return true; + } + + return false; +} + +/* For internal phy only */ +s32 ngbe_phy_read_reg(struct ngbe_hw *hw, + u32 reg_offset, + u32 page, + u16 *phy_data) +{ + /* clear input */ + *phy_data = 0; + + wr32(hw, NGBE_PHY_CONFIG(NGBE_INTERNAL_PHY_PAGE_SELECT_OFFSET), + page); + + if (reg_offset >= NGBE_INTERNAL_PHY_OFFSET_MAX) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "input reg offset %d exceed maximum 31.\n", reg_offset); + return NGBE_ERR_INVALID_ARGUMENT; + } + + *phy_data = 0xFFFF & rd32(hw, NGBE_PHY_CONFIG(reg_offset)); + + return NGBE_OK; +} + +/* For internal phy only */ +s32 ngbe_phy_write_reg(struct ngbe_hw *hw, + u32 reg_offset, + u32 page, + u16 phy_data) +{ + + wr32(hw, NGBE_PHY_CONFIG(NGBE_INTERNAL_PHY_PAGE_SELECT_OFFSET), + page); + + if (reg_offset >= NGBE_INTERNAL_PHY_OFFSET_MAX) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "input reg offset %d exceed maximum 31.\n", reg_offset); + return NGBE_ERR_INVALID_ARGUMENT; + } + wr32(hw, NGBE_PHY_CONFIG(reg_offset), phy_data); + + return NGBE_OK; +} + +s32 ngbe_check_internal_phy_id(struct ngbe_hw *hw) +{ + u16 phy_id_high = 0; + u16 phy_id_low = 0; + u16 phy_id = 0; + + DEBUGFUNC("ngbe_check_internal_phy_id"); + + ngbe_phy_read_reg(hw, NGBE_MDI_PHY_ID1_OFFSET, 0, &phy_id_high); + phy_id = phy_id_high << 6; + ngbe_phy_read_reg(hw, NGBE_MDI_PHY_ID2_OFFSET, 0, &phy_id_low); + phy_id |= (phy_id_low & NGBE_MDI_PHY_ID_MASK) >> 10; + + if (NGBE_INTERNAL_PHY_ID != phy_id) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "internal phy id 0x%x not supported.\n", phy_id); + return NGBE_ERR_DEVICE_NOT_SUPPORTED; + } else + hw->phy.id = (u32)phy_id; + + return NGBE_OK; +} + +/** + * ngbe_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 ngbe_phy_read_reg_mdi(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data) +{ + u32 command; + s32 status = 0; + + /* setup and write the address cycle command */ + command = NGBE_MSCA_RA(reg_addr) | + NGBE_MSCA_PA(hw->phy.addr) | + NGBE_MSCA_DA(device_type); + wr32(hw, NGBE_MSCA, command); + + command = NGBE_MSCC_CMD(NGBE_MSCA_CMD_READ) | + NGBE_MSCC_BUSY | + NGBE_MDIO_CLK(6); + wr32(hw, NGBE_MSCC, command); + + /* wait to complete */ + status = po32m(hw, NGBE_MSCC, + NGBE_MSCC_BUSY, ~NGBE_MSCC_BUSY, + NGBE_MDIO_TIMEOUT, 10); + if (status != 0) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "PHY address command did not complete.\n"); + return NGBE_ERR_PHY; + } + + /* read data from MSCC */ + *phy_data = 0xFFFF & rd32(hw, NGBE_MSCC); + + return 0; +} + +/** + * ngbe_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 ngbe_phy_write_reg_mdi(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data) +{ + u32 command; + s32 status = 0; + + /* setup and write the address cycle command */ + command = NGBE_MSCA_RA(reg_addr) | + NGBE_MSCA_PA(hw->phy.addr) | + NGBE_MSCA_DA(device_type); + wr32(hw, NGBE_MSCA, command); + + command = phy_data | NGBE_MSCC_CMD(NGBE_MSCA_CMD_WRITE) | + NGBE_MSCC_BUSY | NGBE_MDIO_CLK(6); + wr32(hw, NGBE_MSCC, command); + + /* wait to complete */ + status = po32m(hw, NGBE_MSCC, + NGBE_MSCC_BUSY, ~NGBE_MSCC_BUSY, + NGBE_MDIO_TIMEOUT, 10); + if (status != 0) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "PHY address command did not complete.\n"); + return NGBE_ERR_PHY; + } + + return 0; +} + +s32 ngbe_phy_read_reg_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data) +{ + s32 status = 0; + status = ngbe_phy_write_reg_mdi(hw, 0x1e, device_type, reg_addr); + if (!status) + status = ngbe_phy_read_reg_mdi(hw, 0x1f, device_type, phy_data); + return status; +} + +s32 ngbe_phy_write_reg_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data) +{ + s32 status = 0; + status = ngbe_phy_write_reg_mdi(hw, 0x1e, device_type, reg_addr); + if (!status) + status = ngbe_phy_write_reg_mdi(hw, 0x1f, device_type, phy_data); + return status; +} + +s32 ngbe_phy_read_reg_sds_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data) +{ + s32 status = 0; + status = ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x02); + if (!status) + status = ngbe_phy_read_reg_ext_yt8521s(hw, reg_addr, device_type, phy_data); + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x00); + return status; +} + +s32 ngbe_phy_write_reg_sds_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data) +{ + s32 status = 0; + status = ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x02); + if (!status) + status = ngbe_phy_write_reg_ext_yt8521s(hw, reg_addr, device_type, phy_data); + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x00); + return status; +} + +s32 ngbe_phy_read_reg_sds_mii_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data) +{ + s32 status = 0; + status = ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x02); + if (!status) + status = ngbe_phy_read_reg_mdi(hw, reg_addr, device_type, phy_data); + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x00); + return status; +} + +s32 ngbe_phy_write_reg_sds_mii_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data) +{ + s32 status = 0; + status = ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x02); + if (!status) + status = ngbe_phy_write_reg_mdi(hw, reg_addr, device_type, phy_data); + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, device_type, 0x00); + return status; +} + +s32 ngbe_check_mdi_phy_id(struct ngbe_hw *hw) +{ + u16 phy_id_high = 0; + u16 phy_id_low = 0; + u32 phy_id = 0; + + DEBUGFUNC("ngbe_check_mdi_phy_id"); + + if (hw->phy.type == ngbe_phy_m88e1512) { + /* select page 0 */ + ngbe_phy_write_reg_mdi(hw, 22, 0, 0); + } else { + /* select page 1 */ + ngbe_phy_write_reg_mdi(hw, 22, 0, 1); + } + + ngbe_phy_read_reg_mdi(hw, NGBE_MDI_PHY_ID1_OFFSET, 0, &phy_id_high); + phy_id = phy_id_high << 6; + ngbe_phy_read_reg_mdi(hw, NGBE_MDI_PHY_ID2_OFFSET, 0, &phy_id_low); + phy_id |= (phy_id_low & NGBE_MDI_PHY_ID_MASK) >> 10; + + if (NGBE_M88E1512_PHY_ID != phy_id) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "MDI phy id 0x%x not supported.\n", phy_id); + return NGBE_ERR_DEVICE_NOT_SUPPORTED; + } else + hw->phy.id = phy_id; + + return NGBE_OK; +} + +bool ngbe_validate_phy_addr(struct ngbe_hw *hw, u32 phy_addr) +{ + u16 phy_id = 0; + bool valid = false; + + DEBUGFUNC("ngbe_validate_phy_addr"); + + hw->phy.addr = phy_addr; + + ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x3, 0, &phy_id); + if (phy_id != 0xFFFF && phy_id != 0x0) + valid = true; + + return valid; +} + +s32 ngbe_check_yt_phy_id(struct ngbe_hw *hw) +{ + u16 phy_id = 0; + bool valid = false; + u32 phy_addr; + DEBUGFUNC("ngbe_check_yt_phy_id"); + + for (phy_addr = 0; phy_addr < 32; phy_addr++) { + valid = ngbe_validate_phy_addr(hw, phy_addr); + if (valid) { + hw->phy.addr = phy_addr; + printk("valid phy addr is 0x%x\n", phy_addr); + break; + } + } + if (!valid) { + printk("cannnot find valid phy address.\n"); + return NGBE_ERR_DEVICE_NOT_SUPPORTED; + } + ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x3, 0, &phy_id); + if (NGBE_YT8521S_PHY_ID != phy_id) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "MDI phy id 0x%x not supported.\n", phy_id); + printk("phy id is 0x%x\n", phy_id); + return NGBE_ERR_DEVICE_NOT_SUPPORTED; + } else + hw->phy.id = phy_id; + return NGBE_OK; +} + +s32 ngbe_check_zte_phy_id(struct ngbe_hw *hw) +{ + u16 phy_id_high = 0; + u16 phy_id_low = 0; + u16 phy_id = 0; + + DEBUGFUNC("ngbe_check_zte_phy_id"); + + ngbe_phy_read_reg_mdi(hw, NGBE_MDI_PHY_ID1_OFFSET, 0, &phy_id_high); + phy_id = phy_id_high << 6; + ngbe_phy_read_reg_mdi(hw, NGBE_MDI_PHY_ID2_OFFSET, 0, &phy_id_low); + phy_id |= (phy_id_low & NGBE_MDI_PHY_ID_MASK) >> 10; + + if (NGBE_INTERNAL_PHY_ID != phy_id) { + ERROR_REPORT1(NGBE_ERROR_UNSUPPORTED, + "MDI phy id 0x%x not supported.\n", phy_id); + return NGBE_ERR_DEVICE_NOT_SUPPORTED; + } else + hw->phy.id = (u32)phy_id; + + return NGBE_OK; +} + +/** + * ngbe_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 ngbe_phy_init(struct ngbe_hw *hw) +{ + s32 ret_val = 0; + u16 value = 0; + int i; + + DEBUGFUNC("\n"); + + /* set fwsw semaphore mask for phy first */ + if (!hw->phy.phy_semaphore_mask) { + hw->phy.phy_semaphore_mask = NGBE_MNG_SWFW_SYNC_SW_PHY; + } + + /* init phy.addr according to HW design */ + + hw->phy.addr = 0; + + /* Identify the PHY or SFP module */ + ret_val = TCALL(hw, phy.ops.identify); + if (ret_val == NGBE_ERR_SFP_NOT_SUPPORTED) + return ret_val; + + /* enable interrupts, only link status change and an done is allowed */ + if (hw->phy.type == ngbe_phy_internal) { + value = NGBE_INTPHY_INT_LSC | NGBE_INTPHY_INT_ANC; + TCALL(hw, phy.ops.write_reg, 0x12, 0xa42, value); + } else if (hw->phy.type == ngbe_phy_m88e1512 || + hw->phy.type == ngbe_phy_m88e1512_sfi) { + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 2); + TCALL(hw, phy.ops.read_reg_mdi, 21, 0, &value); + value &= ~NGBE_M88E1512_RGM_TTC; + value |= NGBE_M88E1512_RGM_RTC; + TCALL(hw, phy.ops.write_reg_mdi, 21, 0, value); + if (hw->phy.type == ngbe_phy_m88e1512) + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + else + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + + TCALL(hw, phy.ops.write_reg_mdi, 0, 0, NGBE_MDI_PHY_RESET); + for (i = 0; i < 15; i++) { + TCALL(hw, phy.ops.read_reg_mdi, 0, 0, &value); + if (value & NGBE_MDI_PHY_RESET) + msleep(1); + else + break; + } + + if (i == 15) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "phy reset exceeds maximum waiting period.\n"); + return NGBE_ERR_PHY_TIMEOUT; + } + + ret_val = TCALL(hw, phy.ops.reset); + if (ret_val) { + return ret_val; + } + + /* set LED2 to interrupt output and INTn active low */ + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 3); + TCALL(hw, phy.ops.read_reg_mdi, 18, 0, &value); + value |= NGBE_M88E1512_INT_EN; + value &= ~(NGBE_M88E1512_INT_POL); + TCALL(hw, phy.ops.write_reg_mdi, 18, 0, value); + + if (hw->phy.type == ngbe_phy_m88e1512_sfi) { + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + TCALL(hw, phy.ops.read_reg_mdi, 16, 0, &value); + value &= ~0x4; + TCALL(hw, phy.ops.write_reg_mdi, 16, 0, value); + } + + /* enable link status change and AN complete interrupts */ + value = NGBE_M88E1512_INT_ANC | NGBE_M88E1512_INT_LSC; + if (hw->phy.type == ngbe_phy_m88e1512) + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + else + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + TCALL(hw, phy.ops.write_reg_mdi, 18, 0, value); + + /* LED control */ + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 3); + TCALL(hw, phy.ops.read_reg_mdi, 16, 0, &value); + value &= ~0x00FF; + value |= (NGBE_M88E1512_LED1_CONF << 4) | NGBE_M88E1512_LED0_CONF; + TCALL(hw, phy.ops.write_reg_mdi, 16, 0, value); + TCALL(hw, phy.ops.read_reg_mdi, 17, 0, &value); + value &= ~0x000F; + + TCALL(hw, phy.ops.write_reg_mdi, 17, 0, value); + } else if (hw->phy.type == ngbe_phy_yt8521s_sfi) { + + /*enable yt8521s interrupt*/ + #if 1 + /* select sds area register */ + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, 0, 0x00); + + /* enable interrupt */ + value = 0x000C; + TCALL(hw, phy.ops.write_reg_mdi, 0x12, 0, value); + #endif + + /* select fiber_to_rgmii first */ + ngbe_phy_read_reg_ext_yt8521s(hw, 0xa006, 0, &value); + value &= ~0x100; + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa006, 0, value); + + ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x0, 0, &value); + value |= 0x800; + ngbe_phy_write_reg_sds_mii_yt8521s(hw, 0x0, 0, value); + } + + return ret_val; +} + +/** + * ngbe_identify_module - Identifies module type + * @hw: pointer to hardware structure + * + * Determines HW type and calls appropriate function. + **/ +s32 ngbe_phy_identify(struct ngbe_hw *hw) +{ + s32 status = 0; + + DEBUGFUNC("ngbe_phy_identify"); + + switch (hw->phy.type) { + case ngbe_phy_internal: + status = ngbe_check_internal_phy_id(hw); + break; + case ngbe_phy_m88e1512: + case ngbe_phy_m88e1512_sfi: + status = ngbe_check_mdi_phy_id(hw); + break; + case ngbe_phy_zte: + status = ngbe_check_zte_phy_id(hw); + break; + case ngbe_phy_yt8521s_sfi: + status = ngbe_check_yt_phy_id(hw); + break; + default: + status = NGBE_ERR_PHY_TYPE; + } + + return status; +} + +s32 ngbe_phy_reset(struct ngbe_hw *hw) +{ + s32 status = 0; + + u16 value = 0; + int i; + + DEBUGFUNC("ngbe_phy_reset"); + + /* only support internal phy */ + if (hw->phy.type != ngbe_phy_internal) + return NGBE_ERR_PHY_TYPE; + + /* Don't reset PHY if it's shut down due to overtemp. */ + if (!hw->phy.reset_if_overtemp && + (NGBE_ERR_OVERTEMP == TCALL(hw, phy.ops.check_overtemp))) { + ERROR_REPORT1(NGBE_ERROR_CAUTION, + "OVERTEMP! Skip PHY reset.\n"); + return NGBE_ERR_OVERTEMP; + } + + /* Blocked by MNG FW so bail */ + if (ngbe_check_reset_blocked(hw)) + return status; + + value |= NGBE_MDI_PHY_RESET; + status = TCALL(hw, phy.ops.write_reg, 0, 0, value); + for (i = 0; i < NGBE_PHY_RST_WAIT_PERIOD; i++) { + status = TCALL(hw, phy.ops.read_reg, 0, 0, &value); + if (!(value & NGBE_MDI_PHY_RESET)) + break; + msleep(1); + } + + if (i == NGBE_PHY_RST_WAIT_PERIOD) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "PHY MODE RESET did not complete.\n"); + return NGBE_ERR_RESET_FAILED; + } + + return status; +} + +u32 ngbe_phy_setup_link(struct ngbe_hw *hw, + u32 speed, + bool need_restart_AN) +{ + u16 value = 0; + + DEBUGFUNC("ngbe_phy_setup_link"); + + /* disable 10/100M Half Duplex */ + TCALL(hw, phy.ops.read_reg, 4, 0, &value); + value &= 0xFF5F; + TCALL(hw, phy.ops.write_reg, 4, 0, value); + + /* set advertise enable according to input speed */ + if (!(speed & NGBE_LINK_SPEED_1GB_FULL)) { + TCALL(hw, phy.ops.read_reg, 9, 0, &value); + value &= 0xFDFF; + TCALL(hw, phy.ops.write_reg, 9, 0, value); + } else { + TCALL(hw, phy.ops.read_reg, 9, 0, &value); + value |= 0x200; + TCALL(hw, phy.ops.write_reg, 9, 0, value); + } + + if (!(speed & NGBE_LINK_SPEED_100_FULL)) { + TCALL(hw, phy.ops.read_reg, 4, 0, &value); + value &= 0xFEFF; + TCALL(hw, phy.ops.write_reg, 4, 0, value); + } else { + TCALL(hw, phy.ops.read_reg, 4, 0, &value); + value |= 0x100; + TCALL(hw, phy.ops.write_reg, 4, 0, value); + } + + if (!(speed & NGBE_LINK_SPEED_10_FULL)) { + TCALL(hw, phy.ops.read_reg, 4, 0, &value); + value &= 0xFFBF; + TCALL(hw, phy.ops.write_reg, 4, 0, value); + } else { + TCALL(hw, phy.ops.read_reg, 4, 0, &value); + value |= 0x40; + TCALL(hw, phy.ops.write_reg, 4, 0, value); + } + + /* restart AN and wait AN done interrupt */ + if (((hw->subsystem_device_id & NCSI_SUP_MASK) == NCSI_SUP) || + ((hw->subsystem_device_id & OEM_MASK) == OCP_CARD)) { + if (need_restart_AN) + value = NGBE_MDI_PHY_RESTART_AN | NGBE_MDI_PHY_ANE; + else + value = NGBE_MDI_PHY_ANE; + } else { + value = NGBE_MDI_PHY_RESTART_AN | NGBE_MDI_PHY_ANE; + } + TCALL(hw, phy.ops.write_reg, 0, 0, value); + + value = 0x205B; + TCALL(hw, phy.ops.write_reg, 16, 0xd04, value); + TCALL(hw, phy.ops.write_reg, 17, 0xd04, 0); + + TCALL(hw, phy.ops.read_reg, 18, 0xd04, &value); + + value = value & 0xFF8C; + /*act led blinking mode set to 60ms*/ + value |= 0x2; + TCALL(hw, phy.ops.write_reg, 18, 0xd04, value); + + TCALL(hw, phy.ops.check_event); + + return NGBE_OK; +} + +s32 ngbe_phy_reset_m88e1512(struct ngbe_hw *hw) +{ + s32 status = 0; + + u16 value = 0; + int i; + + DEBUGFUNC("ngbe_phy_reset_m88e1512"); + + if (hw->phy.type != ngbe_phy_m88e1512 && + hw->phy.type != ngbe_phy_m88e1512_sfi) + return NGBE_ERR_PHY_TYPE; + + /* Don't reset PHY if it's shut down due to overtemp. */ + if (!hw->phy.reset_if_overtemp && + (NGBE_ERR_OVERTEMP == TCALL(hw, phy.ops.check_overtemp))) { + ERROR_REPORT1(NGBE_ERROR_CAUTION, + "OVERTEMP! Skip PHY reset.\n"); + return NGBE_ERR_OVERTEMP; + } + + /* Blocked by MNG FW so bail */ + if (ngbe_check_reset_blocked(hw)) + return status; + + /* select page 18 reg 20 */ + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 18); + + if (hw->phy.type == ngbe_phy_m88e1512) + /* mode select to RGMII-to-copper */ + value = 0; + else + /* mode select to RGMII-to-sfi */ + value = 2; + status = TCALL(hw, phy.ops.write_reg_mdi, 20, 0, value); + /* mode reset */ + value |= NGBE_MDI_PHY_RESET; + status = TCALL(hw, phy.ops.write_reg_mdi, 20, 0, value); + + for (i = 0; i < NGBE_PHY_RST_WAIT_PERIOD; i++) { + status = TCALL(hw, phy.ops.read_reg_mdi, 20, 0, &value); + if (!(value & NGBE_MDI_PHY_RESET)) + break; + msleep(1); + } + + if (i == NGBE_PHY_RST_WAIT_PERIOD) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "M88E1512 MODE RESET did not complete.\n"); + return NGBE_ERR_RESET_FAILED; + } + + return status; +} + +s32 ngbe_phy_reset_yt8521s(struct ngbe_hw *hw) +{ + s32 status = 0; + + u16 value = 0; + int i; + + DEBUGFUNC("ngbe_phy_reset_yt8521s"); + + if (hw->phy.type != ngbe_phy_yt8521s_sfi) + return NGBE_ERR_PHY_TYPE; + + /* Don't reset PHY if it's shut down due to overtemp. */ + if (!hw->phy.reset_if_overtemp && + (NGBE_ERR_OVERTEMP == TCALL(hw, phy.ops.check_overtemp))) { + ERROR_REPORT1(NGBE_ERROR_CAUTION, + "OVERTEMP! Skip PHY reset.\n"); + return NGBE_ERR_OVERTEMP; + } + + /* Blocked by MNG FW so bail */ + if (ngbe_check_reset_blocked(hw)) + return status; + + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0, 0, &value); + /* sds software reset */ + value |= 0x8000; + status = ngbe_phy_write_reg_sds_mii_yt8521s(hw, 0, 0, value); + + for (i = 0; i < NGBE_PHY_RST_WAIT_PERIOD; i++) { + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0, 0, &value); + if (!(value & 0x8000)) + break; + msleep(1); + } + + if (i == NGBE_PHY_RST_WAIT_PERIOD) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "YT8521S Software RESET did not complete.\n"); + return NGBE_ERR_RESET_FAILED; + } + + return status; +} + +u32 ngbe_phy_setup_link_m88e1512(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + u16 value_r4 = 0; + u16 value_r9 = 0; + u16 value; + + DEBUGFUNC("\n"); + UNREFERENCED_PARAMETER(autoneg_wait_to_complete); + + hw->phy.autoneg_advertised = 0; + if (hw->phy.type == ngbe_phy_m88e1512) { + if (speed & NGBE_LINK_SPEED_1GB_FULL) { + value_r9 |= NGBE_M88E1512_1000BASET_FULL; + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_1GB_FULL; + } + + if (speed & NGBE_LINK_SPEED_100_FULL) { + value_r4 |= NGBE_M88E1512_100BASET_FULL; + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_100_FULL; + } + + if (speed & NGBE_LINK_SPEED_10_FULL) { + value_r4 |= NGBE_M88E1512_10BASET_FULL; + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_10_FULL; + } + + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + TCALL(hw, phy.ops.read_reg_mdi, 4, 0, &value); + value &= ~(NGBE_M88E1512_100BASET_FULL | + NGBE_M88E1512_100BASET_HALF | + NGBE_M88E1512_10BASET_FULL | + NGBE_M88E1512_10BASET_HALF); + value_r4 |= value; + TCALL(hw, phy.ops.write_reg_mdi, 4, 0, value_r4); + + TCALL(hw, phy.ops.read_reg_mdi, 9, 0, &value); + value &= ~(NGBE_M88E1512_1000BASET_FULL | + NGBE_M88E1512_1000BASET_HALF); + value_r9 |= value; + TCALL(hw, phy.ops.write_reg_mdi, 9, 0, value_r9); + + value = NGBE_MDI_PHY_RESTART_AN | NGBE_MDI_PHY_ANE; + TCALL(hw, phy.ops.write_reg_mdi, 0, 0, value); + } else { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_1GB_FULL; + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + TCALL(hw, phy.ops.read_reg_mdi, 4, 0, &value); + value &= ~0x60; + value |= 0x20; + TCALL(hw, phy.ops.write_reg_mdi, 4, 0, value); + + value = NGBE_MDI_PHY_RESTART_AN | NGBE_MDI_PHY_ANE; + TCALL(hw, phy.ops.write_reg_mdi, 0, 0, value); + } + + TCALL(hw, phy.ops.check_event); + + return NGBE_OK; +} + +u32 ngbe_phy_setup_link_yt8521s(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + s32 ret_val = 0; + u16 value; + u16 value_r4 = 0; + u16 value_r9 = 0; + + DEBUGFUNC("\n"); + UNREFERENCED_PARAMETER(autoneg_wait_to_complete); + UNREFERENCED_PARAMETER(speed); + + hw->phy.autoneg_advertised = 0; + + if (hw->phy.type == ngbe_phy_yt8521s) { + value_r4 = 0x140; + value_r9 = 0x200; + /*disable 100/10base-T Self-negotiation ability*/ + ngbe_phy_read_reg_mdi(hw, 0x4, 0, &value); + value &= ~value_r4; + ngbe_phy_write_reg_mdi(hw, 0x4, 0, value); + + /*disable 1000base-T Self-negotiation ability*/ + ngbe_phy_read_reg_mdi(hw, 0x9, 0, &value); + value &= ~value_r9; + ngbe_phy_write_reg_mdi(hw, 0x9, 0, value); + + value_r4 = 0x0; + value_r9 = 0x0; + + if (speed & NGBE_LINK_SPEED_1GB_FULL) { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_1GB_FULL; + value_r9 |= 0x200; + } + if (speed & NGBE_LINK_SPEED_100_FULL) { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_100_FULL; + value_r4 |= 0x100; + } + if (speed & NGBE_LINK_SPEED_10_FULL) { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_10_FULL; + value_r4 |= 0x40; + } + + /* enable 1000base-T Self-negotiation ability */ + ngbe_phy_read_reg_mdi(hw, 0x9, 0, &value); + value |= value_r9; + ngbe_phy_write_reg_mdi(hw, 0x9, 0, value); + + /* enable 100/10base-T Self-negotiation ability */ + ngbe_phy_read_reg_mdi(hw, 0x4, 0, &value); + value |= value_r4; + ngbe_phy_write_reg_mdi(hw, 0x4, 0, value); + + /* software reset to make the above configuration take effect*/ + ngbe_phy_read_reg_mdi(hw, 0x0, 0, &value); + value |= 0x8000; + ngbe_phy_write_reg_mdi(hw, 0x0, 0, value); + } else { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_1GB_FULL; + + /* RGMII_Config1 : Config rx and tx training delay */ + ngbe_phy_write_reg_ext_yt8521s(hw, 0xA003, 0, 0x3cf1); + ngbe_phy_write_reg_ext_yt8521s(hw, 0xA001, 0, 0x8041); + + /* software reset */ + ngbe_phy_write_reg_sds_ext_yt8521s(hw, 0x0, 0, 0x9140); + + /* power on phy */ + ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x0, 0, &value); + value &= ~0x800; + ngbe_phy_write_reg_sds_mii_yt8521s(hw, 0x0, 0, value); + } + + TCALL(hw, phy.ops.check_event); + + return ret_val; +} + +s32 ngbe_phy_reset_zte(struct ngbe_hw *hw) +{ + s32 status = 0; + u16 value = 0; + int i; + + DEBUGFUNC("ngbe_phy_reset_zte"); + + if (hw->phy.type != ngbe_phy_zte) + return NGBE_ERR_PHY_TYPE; + + /* Don't reset PHY if it's shut down due to overtemp. */ + if (!hw->phy.reset_if_overtemp && + (NGBE_ERR_OVERTEMP == TCALL(hw, phy.ops.check_overtemp))) { + ERROR_REPORT1(NGBE_ERROR_CAUTION, + "OVERTEMP! Skip PHY reset.\n"); + return NGBE_ERR_OVERTEMP; + } + + /* Blocked by MNG FW so bail */ + if (ngbe_check_reset_blocked(hw)) + return status; + + /* zte phy */ + /* set control register[0x0] to reset mode */ + value = 1; + /* mode reset */ + value |= NGBE_MDI_PHY_RESET; + status = TCALL(hw, phy.ops.write_reg_mdi, 0, 0, value); + + for (i = 0; i < NGBE_PHY_RST_WAIT_PERIOD; i++) { + status = TCALL(hw, phy.ops.read_reg_mdi, 0, 0, &value); + if (!(value & NGBE_MDI_PHY_RESET)) + break; + msleep(1); + } + + if (i == NGBE_PHY_RST_WAIT_PERIOD) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "ZTE MODE RESET did not complete.\n"); + return NGBE_ERR_RESET_FAILED; + } + + return status; +} + +u32 ngbe_phy_setup_link_zte(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete) +{ + u16 ngbe_phy_ccr = 0; + + DEBUGFUNC("\n"); + UNREFERENCED_PARAMETER(autoneg_wait_to_complete); + /* + * Clear autoneg_advertised and set new values based on input link + * speed. + */ + hw->phy.autoneg_advertised = 0; + TCALL(hw, phy.ops.read_reg_mdi, 0, 0, &ngbe_phy_ccr); + + if (speed & NGBE_LINK_SPEED_1GB_FULL) { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_1GB_FULL; + ngbe_phy_ccr |= NGBE_MDI_PHY_SPEED_SELECT1;/*bit 6*/ + } else if (speed & NGBE_LINK_SPEED_100_FULL) { + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_100_FULL; + ngbe_phy_ccr |= NGBE_MDI_PHY_SPEED_SELECT0;/*bit 13*/ + } else if (speed & NGBE_LINK_SPEED_10_FULL) + hw->phy.autoneg_advertised |= NGBE_LINK_SPEED_10_FULL; + else + return NGBE_LINK_SPEED_UNKNOWN; + + ngbe_phy_ccr |= NGBE_MDI_PHY_DUPLEX;/*restart autonegotiation*/ + TCALL(hw, phy.ops.write_reg_mdi, 0, 0, ngbe_phy_ccr); + + return speed; +} + +/** + * ngbe_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 ngbe_phy_check_overtemp(struct ngbe_hw *hw) +{ + s32 status = 0; + u32 ts_state; + + DEBUGFUNC("ngbe_phy_check_overtemp"); + + /* Check that the LASI temp alarm status was triggered */ + ts_state = rd32(hw, NGBE_TS_ALARM_ST); + + if (ts_state & NGBE_TS_ALARM_ST_DALARM) + status = NGBE_ERR_UNDERTEMP; + else if (ts_state & NGBE_TS_ALARM_ST_ALARM) + status = NGBE_ERR_OVERTEMP; + + return status; +} + +s32 ngbe_phy_check_event(struct ngbe_hw *hw) +{ + u16 value = 0; + struct ngbe_adapter *adapter = hw->back; + + TCALL(hw, phy.ops.read_reg, 0x1d, 0xa43, &value); + adapter->flags |= NGBE_FLAG_NEED_LINK_UPDATE; + if (value & 0x10) { + adapter->flags |= NGBE_FLAG_NEED_LINK_UPDATE; + } else if (value & 0x08) { + adapter->flags |= NGBE_FLAG_NEED_ANC_CHECK; + } + + return NGBE_OK; +} + +s32 ngbe_phy_check_event_m88e1512(struct ngbe_hw *hw) +{ + u16 value = 0; + struct ngbe_adapter *adapter = hw->back; + + if (hw->phy.type == ngbe_phy_m88e1512) + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + else + TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + TCALL(hw, phy.ops.read_reg_mdi, 19, 0, &value); + + if (value & NGBE_M88E1512_LSC) { + adapter->flags |= NGBE_FLAG_NEED_LINK_UPDATE; + } + + if (value & NGBE_M88E1512_ANC) { + adapter->flags |= NGBE_FLAG_NEED_ANC_CHECK; + } + + return NGBE_OK; +} + +s32 ngbe_phy_check_event_yt8521s(struct ngbe_hw *hw) +{ + u16 value = 0; + struct ngbe_adapter *adapter = hw->back; + + ngbe_phy_write_reg_ext_yt8521s(hw, 0xa000, 0, 0x0); + TCALL(hw, phy.ops.read_reg_mdi, 0x13, 0, &value); + + if (value & (NGBE_YT8521S_SDS_LINK_UP | NGBE_YT8521S_SDS_LINK_DOWN)) { + adapter->flags |= NGBE_FLAG_NEED_LINK_UPDATE; + } + + return NGBE_OK; +} + +s32 ngbe_phy_get_advertised_pause(struct ngbe_hw *hw, u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + status = TCALL(hw, phy.ops.read_reg, 4, 0, &value); + *pause_bit = (u8)((value >> 10) & 0x3); + return status; +} + +s32 ngbe_phy_get_advertised_pause_m88e1512(struct ngbe_hw *hw, u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + if (hw->phy.type == ngbe_phy_m88e1512) { + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + status = TCALL(hw, phy.ops.read_reg_mdi, 4, 0, &value); + *pause_bit = (u8)((value >> 10) & 0x3); + } else { + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + status = TCALL(hw, phy.ops.read_reg_mdi, 4, 0, &value); + *pause_bit = (u8)((value >> 7) & 0x3); + } + return status; +} + +s32 ngbe_phy_get_advertised_pause_yt8521s(struct ngbe_hw *hw, u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x04, 0, &value); + *pause_bit = (u8)((value >> 7) & 0x3); + return status; +} + +s32 ngbe_phy_get_lp_advertised_pause(struct ngbe_hw *hw, u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + status = TCALL(hw, phy.ops.read_reg, 0x1d, 0xa43, &value); + + status = TCALL(hw, phy.ops.read_reg, 0x1, 0, &value); + value = (value >> 5) & 0x1; + + /* if AN complete then check lp adv pause */ + status = TCALL(hw, phy.ops.read_reg, 5, 0, &value); + *pause_bit = (u8)((value >> 10) & 0x3); + return status; +} + +s32 ngbe_phy_get_lp_advertised_pause_m88e1512(struct ngbe_hw *hw, + u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + if (hw->phy.type == ngbe_phy_m88e1512) { + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + status = TCALL(hw, phy.ops.read_reg_mdi, 5, 0, &value); + *pause_bit = (u8)((value >> 10) & 0x3); + } else { + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + status = TCALL(hw, phy.ops.read_reg_mdi, 5, 0, &value); + *pause_bit = (u8)((value >> 7) & 0x3); + } + return status; +} + +s32 ngbe_phy_get_lp_advertised_pause_yt8521s(struct ngbe_hw *hw, + u8 *pause_bit) +{ + u16 value; + s32 status = 0; + + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x05, 0, &value); + *pause_bit = (u8)((value >> 7) & 0x3); + return status; +} + +s32 ngbe_phy_set_pause_advertisement(struct ngbe_hw *hw, u16 pause_bit) +{ + u16 value; + s32 status = 0; + + status = TCALL(hw, phy.ops.read_reg, 4, 0, &value); + value &= ~0xC00; + value |= pause_bit; + status = TCALL(hw, phy.ops.write_reg, 4, 0, value); + return status; +} + +s32 ngbe_phy_set_pause_advertisement_m88e1512(struct ngbe_hw *hw, + u16 pause_bit) +{ + u16 value; + s32 status = 0; + if (hw->phy.type == ngbe_phy_m88e1512) { + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 0); + status = TCALL(hw, phy.ops.read_reg_mdi, 4, 0, &value); + value &= ~0xC00; + value |= pause_bit; + status = TCALL(hw, phy.ops.write_reg_mdi, 4, 0, value); + } else { + status = TCALL(hw, phy.ops.write_reg_mdi, 22, 0, 1); + status = TCALL(hw, phy.ops.read_reg_mdi, 4, 0, &value); + value &= ~0x180; + value |= pause_bit; + status = TCALL(hw, phy.ops.write_reg_mdi, 4, 0, value); + } + + return status; +} + +s32 ngbe_phy_set_pause_advertisement_yt8521s(struct ngbe_hw *hw, + u16 pause_bit) +{ + u16 value; + s32 status = 0; + + status = ngbe_phy_read_reg_sds_mii_yt8521s(hw, 0x04, 0, &value); + value &= ~0x180; + value |= pause_bit; + status = ngbe_phy_write_reg_sds_mii_yt8521s(hw, 0x04, 0, value); + + return status; +} + +s32 ngbe_phy_setup(struct ngbe_hw *hw) +{ + int i; + u16 value = 0; + + for (i = 0; i < 15; i++) { + if (!rd32m(hw, NGBE_MIS_ST, NGBE_MIS_ST_GPHY_IN_RST(hw->bus.lan_id))) { + break; + } + msleep(1); + } + + if (i == 15) { + ERROR_REPORT1(NGBE_ERROR_POLLING, + "GPhy reset exceeds maximum times.\n"); + return NGBE_ERR_PHY_TIMEOUT; + } + + for (i = 0; i < 1000; i++) { + TCALL(hw, phy.ops.read_reg, 29, 0xa43, &value); + if (value & 0x20) + break; + } + + TCALL(hw, phy.ops.write_reg, 20, 0xa46, 1); + for (i = 0; i < 1000; i++) { + TCALL(hw, phy.ops.read_reg, 29, 0xa43, &value); + if (value & 0x20) + break; + } + if (i == 1000) { + return NGBE_ERR_PHY_TIMEOUT; + } + + TCALL(hw, phy.ops.write_reg, 20, 0xa46, 2); + for (i = 0; i < 1000; i++) { + TCALL(hw, phy.ops.read_reg, 29, 0xa43, &value); + if (value & 0x20) + break; + } + + if (i == 1000) { + return NGBE_ERR_PHY_TIMEOUT; + } + + for (i = 0; i < 1000; i++) { + TCALL(hw, phy.ops.read_reg, 16, 0xa42, &value); + if ((value & 0x7) == 3) + break; + } + + if (i == 1000) { + return NGBE_ERR_PHY_TIMEOUT; + } + + return NGBE_OK; +} + +s32 ngbe_init_phy_ops_common(struct ngbe_hw *hw) +{ + struct ngbe_phy_info *phy = &hw->phy; + + phy->ops.reset = ngbe_phy_reset; + phy->ops.read_reg = ngbe_phy_read_reg; + phy->ops.write_reg = ngbe_phy_write_reg; + phy->ops.setup_link = ngbe_phy_setup_link; + phy->ops.check_overtemp = ngbe_phy_check_overtemp; + phy->ops.identify = ngbe_phy_identify; + phy->ops.init = ngbe_phy_init; + phy->ops.check_event = ngbe_phy_check_event; + phy->ops.get_adv_pause = ngbe_phy_get_advertised_pause; + phy->ops.get_lp_adv_pause = ngbe_phy_get_lp_advertised_pause; + phy->ops.set_adv_pause = ngbe_phy_set_pause_advertisement; + phy->ops.setup_once = ngbe_phy_setup; + + return NGBE_OK; +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_phy.h b/drivers/net/ethernet/netswift/ngbe/ngbe_phy.h new file mode 100644 index 0000000000000..c6568018b20c7 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_phy.h @@ -0,0 +1,201 @@ +/* + * WangXun 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 _NGBE_PHY_H_ +#define _NGBE_PHY_H_ + +#include "ngbe_type.h" +#include "ngbe.h" + +/* EEPROM byte offsets */ +#define NGBE_SFF_IDENTIFIER 0x0 +#define NGBE_SFF_IDENTIFIER_SFP 0x3 +#define NGBE_SFF_VENDOR_OUI_BYTE0 0x25 +#define NGBE_SFF_VENDOR_OUI_BYTE1 0x26 +#define NGBE_SFF_VENDOR_OUI_BYTE2 0x27 +#define NGBE_SFF_1GBE_COMP_CODES 0x6 +#define NGBE_SFF_10GBE_COMP_CODES 0x3 +#define NGBE_SFF_CABLE_TECHNOLOGY 0x8 +#define NGBE_SFF_CABLE_SPEC_COMP 0x3C +#define NGBE_SFF_SFF_8472_SWAP 0x5C +#define NGBE_SFF_SFF_8472_COMP 0x5E +#define NGBE_SFF_SFF_8472_OSCB 0x6E +#define NGBE_SFF_SFF_8472_ESCB 0x76 +#define NGBE_SFF_IDENTIFIER_QSFP_PLUS 0xD +#define NGBE_SFF_QSFP_VENDOR_OUI_BYTE0 0xA5 +#define NGBE_SFF_QSFP_VENDOR_OUI_BYTE1 0xA6 +#define NGBE_SFF_QSFP_VENDOR_OUI_BYTE2 0xA7 +#define NGBE_SFF_QSFP_CONNECTOR 0x82 +#define NGBE_SFF_QSFP_10GBE_COMP 0x83 +#define NGBE_SFF_QSFP_1GBE_COMP 0x86 +#define NGBE_SFF_QSFP_CABLE_LENGTH 0x92 +#define NGBE_SFF_QSFP_DEVICE_TECH 0x93 + +/* Bitmasks */ +#define NGBE_SFF_DA_PASSIVE_CABLE 0x4 +#define NGBE_SFF_DA_ACTIVE_CABLE 0x8 +#define NGBE_SFF_DA_SPEC_ACTIVE_LIMITING 0x4 +#define NGBE_SFF_1GBASESX_CAPABLE 0x1 +#define NGBE_SFF_1GBASELX_CAPABLE 0x2 +#define NGBE_SFF_1GBASET_CAPABLE 0x8 +#define NGBE_SFF_10GBASESR_CAPABLE 0x10 +#define NGBE_SFF_10GBASELR_CAPABLE 0x20 +#define NGBE_SFF_SOFT_RS_SELECT_MASK 0x8 +#define NGBE_SFF_SOFT_RS_SELECT_10G 0x8 +#define NGBE_SFF_SOFT_RS_SELECT_1G 0x0 +#define NGBE_SFF_ADDRESSING_MODE 0x4 +#define NGBE_SFF_QSFP_DA_ACTIVE_CABLE 0x1 +#define NGBE_SFF_QSFP_DA_PASSIVE_CABLE 0x8 +#define NGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE 0x23 +#define NGBE_SFF_QSFP_TRANSMITER_850NM_VCSEL 0x0 +#define NGBE_I2C_EEPROM_READ_MASK 0x100 +#define NGBE_I2C_EEPROM_STATUS_MASK 0x3 +#define NGBE_I2C_EEPROM_STATUS_NO_OPERATION 0x0 +#define NGBE_I2C_EEPROM_STATUS_PASS 0x1 +#define NGBE_I2C_EEPROM_STATUS_FAIL 0x2 +#define NGBE_I2C_EEPROM_STATUS_IN_PROGRESS 0x3 + +#define NGBE_CS4227 0xBE /* CS4227 address */ +#define NGBE_CS4227_GLOBAL_ID_LSB 0 +#define NGBE_CS4227_SCRATCH 2 +#define NGBE_CS4227_GLOBAL_ID_VALUE 0x03E5 +#define NGBE_CS4227_SCRATCH_VALUE 0x5aa5 +#define NGBE_CS4227_RETRIES 5 +#define NGBE_CS4227_LINE_SPARE22_MSB 0x12AD /* Reg to program speed */ +#define NGBE_CS4227_LINE_SPARE24_LSB 0x12B0 /* Reg to program EDC */ +#define NGBE_CS4227_HOST_SPARE22_MSB 0x1AAD /* Reg to program speed */ +#define NGBE_CS4227_HOST_SPARE24_LSB 0x1AB0 /* Reg to program EDC */ +#define NGBE_CS4227_EDC_MODE_CX1 0x0002 +#define NGBE_CS4227_EDC_MODE_SR 0x0004 +#define NGBE_CS4227_RESET_HOLD 500 /* microseconds */ +#define NGBE_CS4227_RESET_DELAY 500 /* milliseconds */ +#define NGBE_CS4227_CHECK_DELAY 30 /* milliseconds */ +#define NGBE_PE 0xE0 /* Port expander address */ +#define NGBE_PE_OUTPUT 1 /* Output register offset */ +#define NGBE_PE_CONFIG 3 /* Config register offset */ +#define NGBE_PE_BIT1 (1 << 1) + +/* Flow control defines */ +#define NGBE_TAF_SYM_PAUSE (0x1) +#define NGBE_TAF_ASM_PAUSE (0x2) + +/* Bit-shift macros */ +#define NGBE_SFF_VENDOR_OUI_BYTE0_SHIFT 24 +#define NGBE_SFF_VENDOR_OUI_BYTE1_SHIFT 16 +#define NGBE_SFF_VENDOR_OUI_BYTE2_SHIFT 8 + +/* Vendor OUIs: format of OUI is 0x[byte0][byte1][byte2][00] */ +#define NGBE_SFF_VENDOR_OUI_TYCO 0x00407600 +#define NGBE_SFF_VENDOR_OUI_FTL 0x00906500 +#define NGBE_SFF_VENDOR_OUI_AVAGO 0x00176A00 +#define NGBE_SFF_VENDOR_OUI_INTEL 0x001B2100 + +/* I2C SDA and SCL timing parameters for standard mode */ +#define NGBE_I2C_T_HD_STA 4 +#define NGBE_I2C_T_LOW 5 +#define NGBE_I2C_T_HIGH 4 +#define NGBE_I2C_T_SU_STA 5 +#define NGBE_I2C_T_HD_DATA 5 +#define NGBE_I2C_T_SU_DATA 1 +#define NGBE_I2C_T_RISE 1 +#define NGBE_I2C_T_FALL 1 +#define NGBE_I2C_T_SU_STO 4 +#define NGBE_I2C_T_BUF 5 + +#ifndef NGBE_SFP_DETECT_RETRIES +#define NGBE_SFP_DETECT_RETRIES 10 +#endif /* NGBE_SFP_DETECT_RETRIES */ + +/* SFP+ SFF-8472 Compliance */ +#define NGBE_SFF_SFF_8472_UNSUP 0x00 + +enum ngbe_phy_type ngbe_get_phy_type_from_id(struct ngbe_hw *hw); +s32 ngbe_init_phy_ops_common(struct ngbe_hw *hw); +s32 ngbe_phy_read_reg_mdi(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data); +s32 ngbe_phy_write_reg_mdi(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data); + +s32 ngbe_phy_read_reg_sds_mii_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data); +s32 ngbe_phy_write_reg_sds_mii_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data); + +s32 ngbe_phy_read_reg_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data); +s32 ngbe_phy_write_reg_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data); + +s32 ngbe_phy_read_reg_sds_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 *phy_data); +s32 ngbe_phy_write_reg_sds_ext_yt8521s(struct ngbe_hw *hw, + u32 reg_addr, + u32 device_type, + u16 phy_data); + +s32 ngbe_phy_init(struct ngbe_hw *hw); +s32 ngbe_phy_identify(struct ngbe_hw *hw); +s32 ngbe_phy_reset(struct ngbe_hw *hw); +u32 ngbe_phy_setup_link(struct ngbe_hw *hw, + u32 speed, + bool need_restart_AN); +s32 ngbe_phy_reset_m88e1512(struct ngbe_hw *hw); +u32 ngbe_phy_setup_link_m88e1512(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); +s32 ngbe_phy_check_overtemp(struct ngbe_hw *hw); + +s32 ngbe_check_zte_phy_id(struct ngbe_hw *hw); +s32 ngbe_phy_reset_zte(struct ngbe_hw *hw); +u32 ngbe_phy_setup_link_zte(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); +s32 ngbe_phy_check_event(struct ngbe_hw *hw); +s32 ngbe_phy_check_event_m88e1512(struct ngbe_hw *hw); +s32 ngbe_phy_get_advertised_pause_m88e1512(struct ngbe_hw *hw, u8 *pause_bit); +s32 ngbe_phy_get_lp_advertised_pause_m88e1512(struct ngbe_hw *hw, + u8 *pause_bit); +s32 ngbe_phy_set_pause_advertisement_m88e1512(struct ngbe_hw *hw, + u16 pause_bit); + +s32 ngbe_phy_reset_yt8521s(struct ngbe_hw *hw); +u32 ngbe_phy_setup_link_yt8521s(struct ngbe_hw *hw, + u32 speed, + bool autoneg_wait_to_complete); + +s32 ngbe_phy_check_event_yt8521s(struct ngbe_hw *hw); +s32 ngbe_phy_get_advertised_pause_yt8521s(struct ngbe_hw *hw, u8 *pause_bit); +s32 ngbe_phy_get_lp_advertised_pause_yt8521s(struct ngbe_hw *hw, + u8 *pause_bit); +s32 ngbe_phy_set_pause_advertisement_yt8521s(struct ngbe_hw *hw, + u16 pause_bit); + +#endif /* _NGBE_PHY_H_ */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_procfs.c b/drivers/net/ethernet/netswift/ngbe/ngbe_procfs.c new file mode 100644 index 0000000000000..f7ef1da9fd4ef --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_procfs.c @@ -0,0 +1,908 @@ +/* + * WangXun 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 "ngbe.h" +#include "ngbe_hw.h" +#include "ngbe_type.h" + +#ifdef CONFIG_NGBE_PROCFS + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/proc_fs.h> +#include <linux/device.h> +#include <linux/netdevice.h> + +static struct proc_dir_entry *ngbe_top_dir; + +static struct net_device_stats *procfs_get_stats(struct net_device *netdev) +{ + if (netdev == NULL) + return NULL; + + /* only return the current stats */ + return &netdev->stats; +} + +static int ngbe_fwbanner(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + return snprintf(page, count, "%s\n", adapter->eeprom_id); +} + +static int ngbe_porttype(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + return snprintf(page, count, "%d\n", + test_bit(__NGBE_DOWN, &adapter->state)); +} + +static int ngbe_portspeed(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + int speed = 0; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + switch (adapter->link_speed) { + case NGBE_LINK_SPEED_100_FULL: + speed = 1; + break; + case NGBE_LINK_SPEED_1GB_FULL: + speed = 10; + break; + case NGBE_LINK_SPEED_10GB_FULL: + speed = 100; + break; + default: + break; + } + return snprintf(page, count, "%d\n", speed); +} + +static int ngbe_wqlflag(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + return snprintf(page, count, "%d\n", adapter->wol); +} + +static int ngbe_xflowctl(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct ngbe_hw *hw; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "%d\n", hw->fc.current_mode); +} + +static int ngbe_rxdrops(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->rx_dropped); +} + +static int ngbe_rxerrors(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", net_stats->rx_errors); +} + +static int ngbe_rxupacks(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "%d\n", rd32(hw, NGBE_TPR)); +} + +static int ngbe_rxmpacks(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + int i, mprc = 0; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + for (i = 0; i < 8; i++) + mprc += rd32(hw, NGBE_PX_MPRC(i)); + return snprintf(page, count, "%d\n", mprc); +} + +static int ngbe_rxbpacks(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "%d\n", + rd32(hw, NGBE_RX_BC_FRAMES_GOOD_LOW)); +} + +static int ngbe_txupacks(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "%d\n", + rd32(hw, NGBE_TX_FRAME_CNT_GOOD_BAD_LOW)); +} + +static int ngbe_txmpacks(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "%d\n", + rd32(hw, NGBE_TX_MC_FRAMES_GOOD_LOW)); +} + +static int ngbe_txbpacks(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "%d\n", + rd32(hw, NGBE_TX_BC_FRAMES_GOOD_LOW)); +} + +static int ngbe_txerrors(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->tx_errors); +} + +static int ngbe_txdrops(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->tx_dropped); +} + +static int ngbe_rxframes(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->rx_packets); +} + +static int ngbe_rxbytes(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->rx_bytes); +} + +static int ngbe_txframes(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->tx_packets); +} + +static int ngbe_txbytes(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device_stats *net_stats; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + net_stats = procfs_get_stats(adapter->netdev); + if (net_stats == NULL) + return snprintf(page, count, "error: no net stats\n"); + + return snprintf(page, count, "%lu\n", + net_stats->tx_bytes); +} + +static int ngbe_linkstat(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + int bitmask = 0; + u32 link_speed; + bool link_up = false; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + if (!test_bit(__NGBE_DOWN, &adapter->state)) + bitmask |= 1; + + /* always assume link is up, if no check link function */ + link_up = true; + if (link_up) + bitmask |= 2; + + if (adapter->old_lsc != adapter->lsc_int) { + bitmask |= 4; + adapter->old_lsc = adapter->lsc_int; + } + + return snprintf(page, count, "0x%X\n", bitmask); +} + +static int ngbe_funcid(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct ngbe_hw *hw; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "0x%X\n", hw->bus.func); +} + +static int ngbe_funcvers(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void __always_unused *data) +{ + return snprintf(page, count, "%s\n", ngbe_driver_version); +} + +static int ngbe_macburn(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "0x%02X%02X%02X%02X%02X%02X\n", + (unsigned int)hw->mac.perm_addr[0], + (unsigned int)hw->mac.perm_addr[1], + (unsigned int)hw->mac.perm_addr[2], + (unsigned int)hw->mac.perm_addr[3], + (unsigned int)hw->mac.perm_addr[4], + (unsigned int)hw->mac.perm_addr[5]); +} + +static int ngbe_macadmn(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_hw *hw; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + return snprintf(page, count, "0x%02X%02X%02X%02X%02X%02X\n", + (unsigned int)hw->mac.addr[0], + (unsigned int)hw->mac.addr[1], + (unsigned int)hw->mac.addr[2], + (unsigned int)hw->mac.addr[3], + (unsigned int)hw->mac.addr[4], + (unsigned int)hw->mac.addr[5]); +} + +static int ngbe_maclla1(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct ngbe_hw *hw; + int rc; + u16 eeprom_buff[6]; + u16 first_word = 0x37; + const u16 word_count = ARRAY_SIZE(eeprom_buff); + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + hw = &adapter->hw; + if (hw == NULL) + return snprintf(page, count, "error: no hw data\n"); + + rc = TCALL(hw, eeprom.ops.read_buffer, first_word, 1, &first_word); + if (rc != 0) + return snprintf(page, count, + "error: reading pointer to the EEPROM\n"); + + if (first_word != 0x0000 && first_word != 0xFFFF) { + rc = TCALL(hw, eeprom.ops.read_buffer, first_word, word_count, + eeprom_buff); + if (rc != 0) + return snprintf(page, count, "error: reading buffer\n"); + } else { + memset(eeprom_buff, 0, sizeof(eeprom_buff)); + } + + switch (hw->bus.func) { + case 0: + return snprintf(page, count, "0x%04X%04X%04X\n", + eeprom_buff[0], + eeprom_buff[1], + eeprom_buff[2]); + case 1: + return snprintf(page, count, "0x%04X%04X%04X\n", + eeprom_buff[3], + eeprom_buff[4], + eeprom_buff[5]); + default: + return snprintf(page, count, "unexpected port %d\n", hw->bus.func); + } +} + +static int ngbe_mtusize(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device *netdev; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + netdev = adapter->netdev; + if (netdev == NULL) + return snprintf(page, count, "error: no net device\n"); + + return snprintf(page, count, "%d\n", netdev->mtu); +} + +static int ngbe_featflag(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + int bitmask = 0; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device *netdev; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + netdev = adapter->netdev; + if (netdev == NULL) + return snprintf(page, count, "error: no net device\n"); + if (adapter->netdev->features & NETIF_F_RXCSUM) + bitmask |= 1; + return snprintf(page, count, "%d\n", bitmask); +} + +static int ngbe_lsominct(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void __always_unused *data) +{ + return snprintf(page, count, "%d\n", 1); +} + +static int ngbe_prommode(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + struct net_device *netdev; + + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + netdev = adapter->netdev; + if (netdev == NULL) + return snprintf(page, count, "error: no net device\n"); + + return snprintf(page, count, "%d\n", + netdev->flags & IFF_PROMISC); +} + +static int ngbe_txdscqsz(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + return snprintf(page, count, "%d\n", adapter->tx_ring[0]->count); +} + +static int ngbe_rxdscqsz(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + return snprintf(page, count, "%d\n", adapter->rx_ring[0]->count); +} + +static int ngbe_rxqavg(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + int index; + int diff = 0; + u16 ntc; + u16 ntu; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + for (index = 0; index < adapter->num_rx_queues; index++) { + ntc = adapter->rx_ring[index]->next_to_clean; + ntu = adapter->rx_ring[index]->next_to_use; + + if (ntc >= ntu) + diff += (ntc - ntu); + else + diff += (adapter->rx_ring[index]->count - ntu + ntc); + } + if (adapter->num_rx_queues <= 0) + return snprintf(page, count, + "can't calculate, number of queues %d\n", + adapter->num_rx_queues); + return snprintf(page, count, "%d\n", diff/adapter->num_rx_queues); +} + +static int ngbe_txqavg(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + int index; + int diff = 0; + u16 ntc; + u16 ntu; + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + for (index = 0; index < adapter->num_tx_queues; index++) { + ntc = adapter->tx_ring[index]->next_to_clean; + ntu = adapter->tx_ring[index]->next_to_use; + + if (ntc >= ntu) + diff += (ntc - ntu); + else + diff += (adapter->tx_ring[index]->count - ntu + ntc); + } + if (adapter->num_tx_queues <= 0) + return snprintf(page, count, + "can't calculate, number of queues %d\n", + adapter->num_tx_queues); + return snprintf(page, count, "%d\n", + diff/adapter->num_tx_queues); +} + +static int ngbe_iovotype(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void __always_unused *data) +{ + return snprintf(page, count, "2\n"); +} + +static int ngbe_funcnbr(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + return snprintf(page, count, "%d\n", adapter->num_vfs); +} + +static int ngbe_pciebnbr(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_adapter *adapter = (struct ngbe_adapter *)data; + if (adapter == NULL) + return snprintf(page, count, "error: no adapter\n"); + + return snprintf(page, count, "%d\n", adapter->pdev->bus->number); +} + +static int ngbe_therm_dealarmthresh(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_therm_proc_data *therm_data = + (struct ngbe_therm_proc_data *)data; + + if (therm_data == NULL) + return snprintf(page, count, "error: no therm_data\n"); + + return snprintf(page, count, "%d\n", + therm_data->sensor_data->dalarm_thresh); +} + +static int ngbe_therm_alarmthresh(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + struct ngbe_therm_proc_data *therm_data = + (struct ngbe_therm_proc_data *)data; + + if (therm_data == NULL) + return snprintf(page, count, "error: no therm_data\n"); + + return snprintf(page, count, "%d\n", + therm_data->sensor_data->alarm_thresh); +} + +static int ngbe_therm_temp(char *page, char __always_unused **start, + off_t __always_unused off, int count, + int __always_unused *eof, void *data) +{ + s32 status; + struct ngbe_therm_proc_data *therm_data = + (struct ngbe_therm_proc_data *)data; + + if (therm_data == NULL) + return snprintf(page, count, "error: no therm_data\n"); + + status = ngbe_get_thermal_sensor_data(therm_data->hw); + if (status != 0) + snprintf(page, count, "error: status %d returned\n", status); + + return snprintf(page, count, "%d\n", therm_data->sensor_data->temp); +} + +struct ngbe_proc_type { + char name[32]; + int (*read)(char*, char**, off_t, int, int*, void*); +}; + +struct ngbe_proc_type ngbe_proc_entries[] = { + {"fwbanner", &ngbe_fwbanner}, + {"porttype", &ngbe_porttype}, + {"portspeed", &ngbe_portspeed}, + {"wqlflag", &ngbe_wqlflag}, + {"xflowctl", &ngbe_xflowctl}, + {"rxdrops", &ngbe_rxdrops}, + {"rxerrors", &ngbe_rxerrors}, + {"rxupacks", &ngbe_rxupacks}, + {"rxmpacks", &ngbe_rxmpacks}, + {"rxbpacks", &ngbe_rxbpacks}, + {"txdrops", &ngbe_txdrops}, + {"txerrors", &ngbe_txerrors}, + {"txupacks", &ngbe_txupacks}, + {"txmpacks", &ngbe_txmpacks}, + {"txbpacks", &ngbe_txbpacks}, + {"rxframes", &ngbe_rxframes}, + {"rxbytes", &ngbe_rxbytes}, + {"txframes", &ngbe_txframes}, + {"txbytes", &ngbe_txbytes}, + {"linkstat", &ngbe_linkstat}, + {"funcid", &ngbe_funcid}, + {"funcvers", &ngbe_funcvers}, + {"macburn", &ngbe_macburn}, + {"macadmn", &ngbe_macadmn}, + {"maclla1", &ngbe_maclla1}, + {"mtusize", &ngbe_mtusize}, + {"featflag", &ngbe_featflag}, + {"lsominct", &ngbe_lsominct}, + {"prommode", &ngbe_prommode}, + {"txdscqsz", &ngbe_txdscqsz}, + {"rxdscqsz", &ngbe_rxdscqsz}, + {"txqavg", &ngbe_txqavg}, + {"rxqavg", &ngbe_rxqavg}, + {"iovotype", &ngbe_iovotype}, + {"funcnbr", &ngbe_funcnbr}, + {"pciebnbr", &ngbe_pciebnbr}, + {"", NULL} +}; + +struct ngbe_proc_type ngbe_internal_entries[] = { + {"temp", &ngbe_therm_temp}, + {"alarmthresh", &ngbe_therm_alarmthresh}, + {"dealarmthresh", &ngbe_therm_dealarmthresh}, + {"", NULL} +}; + +void ngbe_del_proc_entries(struct ngbe_adapter *adapter) +{ + int index; + int i; + char buf[16]; /* much larger than the sensor number will ever be */ + + if (ngbe_top_dir == NULL) + return; + + for (i = 0; i < NGBE_MAX_SENSORS; i++) { + if (adapter->therm_dir[i] == NULL) + continue; + + for (index = 0; ; index++) { + if (ngbe_internal_entries[index].read == NULL) + break; + + remove_proc_entry(ngbe_internal_entries[index].name, + adapter->therm_dir[i]); + } + snprintf(buf, sizeof(buf), "sensor_%d", i); + remove_proc_entry(buf, adapter->info_dir); + } + + if (adapter->info_dir != NULL) { + for (index = 0; ; index++) { + if (ngbe_proc_entries[index].read == NULL) + break; + remove_proc_entry(ngbe_proc_entries[index].name, + adapter->info_dir); + } + remove_proc_entry("info", adapter->eth_dir); + } + + if (adapter->eth_dir != NULL) + remove_proc_entry(pci_name(adapter->pdev), ngbe_top_dir); +} + +/* called from ngbe_main.c */ +void ngbe_procfs_exit(struct ngbe_adapter *adapter) +{ + ngbe_del_proc_entries(adapter); +} + +int ngbe_procfs_topdir_init(void) +{ + ngbe_top_dir = proc_mkdir("driver/ngbe", NULL); + if (ngbe_top_dir == NULL) + return -ENOMEM; + + return 0; +} + +void ngbe_procfs_topdir_exit(void) +{ + remove_proc_entry("driver/ngbe", NULL); +} + +/* called from ngbe_main.c */ +int ngbe_procfs_init(struct ngbe_adapter *adapter) +{ + int rc = 0; + int index; + int i; + char buf[16]; /* much larger than the sensor number will ever be */ + + adapter->eth_dir = NULL; + adapter->info_dir = NULL; + adapter->therm_dir = NULL; + + if (ngbe_top_dir == NULL) { + rc = -ENOMEM; + goto fail; + } + + adapter->eth_dir = proc_mkdir(pci_name(adapter->pdev), ngbe_top_dir); + if (adapter->eth_dir == NULL) { + rc = -ENOMEM; + goto fail; + } + + adapter->info_dir = proc_mkdir("info", adapter->eth_dir); + if (adapter->info_dir == NULL) { + rc = -ENOMEM; + goto fail; + } + for (index = 0; ; index++) { + if (ngbe_proc_entries[index].read == NULL) + break; + if (!(create_proc_read_entry(ngbe_proc_entries[index].name, + 0444, + adapter->info_dir, + ngbe_proc_entries[index].read, + adapter))) { + + rc = -ENOMEM; + goto fail; + } + } + if (!TCALL(&(adapter->hw), ops.init_thermal_sensor_thresh)) + goto exit; + + snprintf(buf, sizeof(buf), "sensor"); + adapter->therm_dir = proc_mkdir(buf, adapter->info_dir); + if (adapter->therm_dir == NULL) { + rc = -ENOMEM; + goto fail; + } + for (index = 0; ; index++) { + if (ngbe_internal_entries[index].read == NULL) + break; + /* + * therm_data struct contains pointer the read func + * will be needing + */ + adapter->therm_data.hw = &adapter->hw; + adapter->therm_data.sensor_data = + &adapter->hw.mac.thermal_sensor_data.sensor; + + if (!(create_proc_read_entry( + ngbe_internal_entries[index].name, + 0444, + adapter->therm_dir, + ngbe_internal_entries[index].read, + &adapter->therm_data))) { + rc = -ENOMEM; + goto fail; + } + } + + goto exit; + +fail: + ngbe_del_proc_entries(adapter); +exit: + return rc; +} + +#endif /* CONFIG_NGBE_PROCFS */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_ptp.c b/drivers/net/ethernet/netswift/ngbe/ngbe_ptp.c new file mode 100644 index 0000000000000..87e7d5dc11a43 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_ptp.c @@ -0,0 +1,858 @@ +/* + * WangXun 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 "ngbe.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 NGBE_INCVAL_10GB 0xCCCCCC +#define NGBE_INCVAL_1GB 0x2000000/*in Emerald all speed is same*/ +#define NGBE_INCVAL_100 0xA00000 +#define NGBE_INCVAL_10 0xC7F380 +#define NGBE_INCVAL_FPGA 0x800000 + +#define NGBE_INCVAL_SHIFT_10GB 20 +#define NGBE_INCVAL_SHIFT_1GB 22/*in Emerald all speed is same*/ +#define NGBE_INCVAL_SHIFT_100 15 +#define NGBE_INCVAL_SHIFT_10 12 +#define NGBE_INCVAL_SHIFT_FPGA 17 + +#define NGBE_OVERFLOW_PERIOD (HZ * 30) +#define NGBE_PTP_TX_TIMEOUT (HZ) + +/** + * ngbe_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 ngbe_ptp_read(const struct cyclecounter *hw_cc) +{ + struct ngbe_adapter *adapter = + container_of(hw_cc, struct ngbe_adapter, hw_cc); + struct ngbe_hw *hw = &adapter->hw; + u64 stamp = 0; + + stamp |= (u64)rd32(hw, NGBE_TSEC_1588_SYSTIML); + stamp |= (u64)rd32(hw, NGBE_TSEC_1588_SYSTIMH) << 32; + + return stamp; +} + +/** + * ngbe_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 ngbe_ptp_convert_to_hwtstamp(struct ngbe_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); +} + +/** + * ngbe_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 ngbe_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb) +{ + struct ngbe_adapter *adapter = + container_of(ptp, struct ngbe_adapter, ptp_caps); + struct ngbe_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); + /* temp setting*/ + + if (incval > NGBE_TSEC_1588_INC_IV(~0)) + e_dev_warn("PTP ppb adjusted SYSTIME rate overflowed!\n"); + wr32(hw, NGBE_TSEC_1588_INC, NGBE_TSEC_1588_INC_IV(incval)); + + return 0; +} + +/** + * ngbe_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 ngbe_ptp_adjtime(struct ptp_clock_info *ptp, + s64 delta) +{ + struct ngbe_adapter *adapter = + container_of(ptp, struct ngbe_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; +} + +/** + * ngbe_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 ngbe_ptp_gettime64(struct ptp_clock_info *ptp, + struct timespec64 *ts) +{ + struct ngbe_adapter *adapter = + container_of(ptp, struct ngbe_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; +} + +/** + * ngbe_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 ngbe_ptp_settime64(struct ptp_clock_info *ptp, + const struct timespec64 *ts) +{ + struct ngbe_adapter *adapter = + container_of(ptp, struct ngbe_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; +} + +/** + * ngbe_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 ngbe_ptp_feature_enable(struct ptp_clock_info *ptp, + struct ptp_clock_request *rq, int on) +{ + return -ENOTSUPP; +} + +/** + * ngbe_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 ngbe_ptp_check_pps_event(struct ngbe_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); + */ +} + +/** + * ngbe_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 ngbe_ptp_overflow_check(struct ngbe_adapter *adapter) +{ + bool timeout = time_is_before_jiffies(adapter->last_overflow_check + + NGBE_OVERFLOW_PERIOD); + struct timespec64 ts; + + if (timeout) { + ngbe_ptp_gettime64(&adapter->ptp_caps, &ts); + adapter->last_overflow_check = jiffies; + } +} + +/** + * ngbe_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 ngbe_ptp_rx_hang(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct ngbe_ring *rx_ring; + u32 tsyncrxctl = rd32(hw, NGBE_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 & NGBE_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, NGBE_PSR_1588_STMPH); + adapter->last_rx_ptp_check = jiffies; + + adapter->rx_hwtstamp_cleared++; + e_warn(drv, "clearing RX Timestamp hang"); + } +} + +/** + * ngbe_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 ngbe_ptp_clear_tx_timestamp(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + + rd32(hw, NGBE_TSEC_1588_STMPH); + if (adapter->ptp_tx_skb) { + dev_kfree_skb_any(adapter->ptp_tx_skb); + adapter->ptp_tx_skb = NULL; + } + clear_bit_unlock(__NGBE_PTP_TX_IN_PROGRESS, &adapter->state); +} + +/** + * ngbe_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 ngbe_ptp_tx_hwtstamp(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct skb_shared_hwtstamps shhwtstamps; + u64 regval = 0; + + regval |= (u64)rd32(hw, NGBE_TSEC_1588_STMPL); + regval |= (u64)rd32(hw, NGBE_TSEC_1588_STMPH) << 32; + + ngbe_ptp_convert_to_hwtstamp(adapter, &shhwtstamps, regval); + skb_tstamp_tx(adapter->ptp_tx_skb, &shhwtstamps); + + ngbe_ptp_clear_tx_timestamp(adapter); +} + +/** + * ngbe_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 ngbe_ptp_tx_hwtstamp_work(struct work_struct *work) +{ + struct ngbe_adapter *adapter = container_of(work, struct ngbe_adapter, + ptp_tx_work); + struct ngbe_hw *hw = &adapter->hw; + bool timeout = time_is_before_jiffies(adapter->ptp_tx_start + + NGBE_PTP_TX_TIMEOUT); + u32 tsynctxctl; + + /* we have to have a valid skb to poll for a timestamp */ + if (!adapter->ptp_tx_skb) { + ngbe_ptp_clear_tx_timestamp(adapter); + return; + } + + /* stop polling once we have a valid timestamp */ + tsynctxctl = rd32(hw, NGBE_TSEC_1588_CTL); + if (tsynctxctl & NGBE_TSEC_1588_CTL_VALID) { + ngbe_ptp_tx_hwtstamp(adapter); + return; + } + + /* check timeout last in case timestamp event just occurred */ + if (timeout) { + ngbe_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); + } +} + +/** + * ngbe_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 ngbe_ptp_rx_hwtstamp(struct ngbe_adapter *adapter, struct sk_buff *skb) +{ + struct ngbe_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, NGBE_PSR_1588_CTL); + if (!(tsyncrxctl & NGBE_PSR_1588_CTL_VALID)) + return; + + regval |= (u64)rd32(hw, NGBE_PSR_1588_STMPL); + regval |= (u64)rd32(hw, NGBE_PSR_1588_STMPH) << 32; + + ngbe_ptp_convert_to_hwtstamp(adapter, skb_hwtstamps(skb), regval); +} + +/** + * ngbe_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 ngbe_ptp_get_ts_config(struct ngbe_adapter *adapter, struct ifreq *ifr) +{ + struct hwtstamp_config *config = &adapter->tstamp_config; + + return copy_to_user(ifr->ifr_data, config, + sizeof(*config)) ? -EFAULT : 0; +} + +/** + * ngbe_ptp_set_timestamp_mode - setup the hardware for the requested mode + * @adapter: the private ngbe 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 ngbe_ptp_set_timestamp_mode(struct ngbe_adapter *adapter, + struct hwtstamp_config *config) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 tsync_tx_ctl = NGBE_TSEC_1588_CTL_ENABLED; + u32 tsync_rx_ctl = NGBE_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 &= ~(NGBE_FLAG_RX_HWTSTAMP_ENABLED | + NGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + break; + case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: + tsync_rx_ctl |= NGBE_PSR_1588_CTL_TYPE_L4_V1; + tsync_rx_mtrl |= NGBE_PSR_1588_MSGTYPE_V1_SYNC_MSG; + adapter->flags |= (NGBE_FLAG_RX_HWTSTAMP_ENABLED | + NGBE_FLAG_RX_HWTSTAMP_IN_REGISTER); + break; + case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: + tsync_rx_ctl |= NGBE_PSR_1588_CTL_TYPE_L4_V1; + tsync_rx_mtrl |= NGBE_PSR_1588_MSGTYPE_V1_DELAY_REQ_MSG; + adapter->flags |= (NGBE_FLAG_RX_HWTSTAMP_ENABLED | + NGBE_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 |= NGBE_PSR_1588_CTL_TYPE_EVENT_V2; + is_l2 = true; + config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; + adapter->flags |= (NGBE_FLAG_RX_HWTSTAMP_ENABLED | + NGBE_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 &= ~(NGBE_FLAG_RX_HWTSTAMP_ENABLED | + NGBE_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, + NGBE_PSR_ETYPE_SWC(NGBE_PSR_ETYPE_SWC_FILTER_1588), + (NGBE_PSR_ETYPE_SWC_FILTER_EN | /* enable filter */ + NGBE_PSR_ETYPE_SWC_1588 | /* enable timestamping */ + ETH_P_1588)); /* 1588 eth protocol type */ + else + wr32(hw, + NGBE_PSR_ETYPE_SWC(NGBE_PSR_ETYPE_SWC_FILTER_1588), + 0); + + /* enable/disable TX */ + regval = rd32(hw, NGBE_TSEC_1588_CTL); + regval &= ~NGBE_TSEC_1588_CTL_ENABLED; + regval |= tsync_tx_ctl; + wr32(hw, NGBE_TSEC_1588_CTL, regval); + + /* enable/disable RX */ + regval = rd32(hw, NGBE_PSR_1588_CTL); + regval &= ~(NGBE_PSR_1588_CTL_ENABLED | NGBE_PSR_1588_CTL_TYPE_MASK); + regval |= tsync_rx_ctl; + wr32(hw, NGBE_PSR_1588_CTL, regval); + + /* define which PTP packets are time stamped */ + wr32(hw, NGBE_PSR_1588_MSGTYPE, tsync_rx_mtrl); + + NGBE_WRITE_FLUSH(hw); + + /* clear TX/RX timestamp state, just to be sure */ + ngbe_ptp_clear_tx_timestamp(adapter); + rd32(hw, NGBE_PSR_1588_STMPH); + + return 0; +} + +/** + * ngbe_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 ngbe_ptp_set_ts_config(struct ngbe_adapter *adapter, struct ifreq *ifr) +{ + struct hwtstamp_config config; + int err; + + if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) + return -EFAULT; + + err = ngbe_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 ngbe_ptp_link_speed_adjust(struct ngbe_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 + */ + + *shift = NGBE_INCVAL_SHIFT_1GB; + *incval = NGBE_INCVAL_1GB; + + return; +} + +/** + * ngbe_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 ngbe_ptp_start_cyclecounter(struct ngbe_adapter *adapter) +{ + struct ngbe_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 = ngbe_ptp_read; + ngbe_ptp_link_speed_adjust(adapter, &cc.shift, &incval); + wr32(hw, NGBE_TSEC_1588_INC, NGBE_TSEC_1588_INC_IV(incval)); + + /* 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); +} + +/** + * ngbe_ptp_reset + * @adapter: the ngbe 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 ngbe_ptp_reset(struct ngbe_adapter *adapter) +{ + unsigned long flags; + + /* reset the hardware timestamping mode */ + ngbe_ptp_set_timestamp_mode(adapter, &adapter->tstamp_config); + ngbe_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; +} + +/** + * ngbe_ptp_create_clock + * @adapter: the ngbe private adapter structure + * + * This function 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 ngbe_ptp_init, and may + * re-use a previously initialized clock (such as during a suspend/resume + * cycle). + */ +static long ngbe_ptp_create_clock(struct ngbe_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 = 500000000; /* 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 = ngbe_ptp_adjfreq; + adapter->ptp_caps.adjtime = ngbe_ptp_adjtime; + adapter->ptp_caps.gettime64 = ngbe_ptp_gettime64; + adapter->ptp_caps.settime64 = ngbe_ptp_settime64; + adapter->ptp_caps.enable = ngbe_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; +} + +/** + * ngbe_ptp_init + * @adapter: the ngbe 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 ngbe_ptp_init(struct ngbe_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 (ngbe_ptp_create_clock(adapter)) + return; + + /* we have a clock, so we can intialize work for timestamps now */ + INIT_WORK(&adapter->ptp_tx_work, ngbe_ptp_tx_hwtstamp_work); + + /* reset the ptp related hardware bits */ + ngbe_ptp_reset(adapter); + + /* enter the NGBE_PTP_RUNNING state */ + set_bit(__NGBE_PTP_RUNNING, &adapter->state); + + return; +} + +/** + * ngbe_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 ngbe_ptp_suspend(struct ngbe_adapter *adapter) +{ + /* leave the NGBE_PTP_RUNNING STATE */ + if (!test_and_clear_bit(__NGBE_PTP_RUNNING, &adapter->state)) + return; + + adapter->flags2 &= ~NGBE_FLAG2_PTP_PPS_ENABLED; + + cancel_work_sync(&adapter->ptp_tx_work); + ngbe_ptp_clear_tx_timestamp(adapter); +} + +/** + * ngbe_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 ngbe_ptp_stop(struct ngbe_adapter *adapter) +{ + /* first, suspend ptp activity */ + ngbe_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/ngbe/ngbe_sriov.c b/drivers/net/ethernet/netswift/ngbe/ngbe_sriov.c new file mode 100644 index 0000000000000..785e25287ad39 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_sriov.c @@ -0,0 +1,1461 @@ +/* + * WangXun 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 <linux/types.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/string.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/tcp.h> +#include <linux/ipv6.h> + +#include "ngbe.h" +#include "ngbe_type.h" +#include "ngbe_sriov.h" + +#ifdef CONFIG_PCI_IOV +static int __ngbe_enable_sriov(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + int num_vf_macvlans, i; + struct vf_macvlans *mv_list; + + adapter->flags |= NGBE_FLAG_SRIOV_ENABLED; + e_dev_info("SR-IOV enabled with %d VFs\n", adapter->num_vfs); + + /* Enable VMDq flag so device will be set in VM mode */ + adapter->flags |= NGBE_FLAG_VMDQ_ENABLED; + if (!adapter->ring_feature[RING_F_VMDQ].limit) + adapter->ring_feature[RING_F_VMDQ].limit = 1; + adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; + + num_vf_macvlans = hw->mac.num_rar_entries - + (NGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); + + adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, + sizeof(struct vf_macvlans), + GFP_KERNEL); + if (mv_list) { + /* Initialize list of VF macvlans */ + INIT_LIST_HEAD(&adapter->vf_mvs.l); + for (i = 0; i < num_vf_macvlans; i++) { + mv_list->vf = -1; + mv_list->free = true; + list_add(&mv_list->l, &adapter->vf_mvs.l); + mv_list++; + } + } + + /* Initialize default switching mode VEB */ + wr32m(hw, NGBE_PSR_CTL, + NGBE_PSR_CTL_SW_EN, NGBE_PSR_CTL_SW_EN); + + /* If call to enable VFs succeeded then allocate memory + * for per VF control structures. + */ + adapter->vfinfo = kcalloc(adapter->num_vfs, + sizeof(struct vf_data_storage), GFP_KERNEL); + if (!adapter->vfinfo) { + adapter->num_vfs = 0; + e_dev_info("failed to allocate memory for VF Data Storage\n"); + return -ENOMEM; + } + + /* enable L2 switch and replication */ + adapter->flags |= NGBE_FLAG_SRIOV_L2SWITCH_ENABLE | + NGBE_FLAG_SRIOV_REPLICATION_ENABLE; + + /* We do not support RSS w/ SR-IOV */ + adapter->ring_feature[RING_F_RSS].limit = 1; + + /* enable spoof checking for all VFs */ + for (i = 0; i < adapter->num_vfs; i++) { + /* enable spoof checking for all VFs */ + adapter->vfinfo[i].spoofchk_enabled = true; + + /* Untrust all VFs */ + adapter->vfinfo[i].trusted = false; + + /* set the default xcast mode */ + adapter->vfinfo[i].xcast_mode = NGBEVF_XCAST_MODE_NONE; + } + + wr32m(hw, NGBE_CFG_PORT_CTL, + NGBE_CFG_PORT_CTL_NUM_VT_MASK, NGBE_CFG_PORT_CTL_NUM_VT_8); + + return 0; +} + +#define NGBE_BA4_ADDR(vfinfo, reg) \ + ((u8 __iomem *)((u8 *)(vfinfo)->b4_addr + (reg))) + +/** + * ngbe_get_vfs - Find and take references to all vf devices + * @adapter: Pointer to adapter struct + */ +static void ngbe_get_vfs(struct ngbe_adapter *adapter) +{ + struct pci_dev *pdev = adapter->pdev; + u16 vendor = pdev->vendor; + struct pci_dev *vfdev; + int vf = 0; + u16 vf_id; + int pos; + + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); + if (!pos) + return; + pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id); + + vfdev = pci_get_device(vendor, vf_id, NULL); + for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) { + struct vf_data_storage *vfinfo; + if (!vfdev->is_virtfn) + continue; + if (vfdev->physfn != pdev) + continue; + if (vf >= adapter->num_vfs) + continue; + + /*pci_dev_get(vfdev);*/ + vfinfo = &adapter->vfinfo[vf]; + vfinfo->vfdev = vfdev; + vfinfo->b4_addr = ioremap(pci_resource_start(vfdev, 4), 64); + + ++vf; + } +} + +/** + * ngbe_pet_vfs - Release references to all vf devices + * @adapter: Pointer to adapter struct + */ +static void ngbe_put_vfs(struct ngbe_adapter *adapter) +{ + unsigned int num_vfs = adapter->num_vfs, vf; + + /* put the reference to all of the vf devices */ + for (vf = 0; vf < num_vfs; ++vf) { + struct vf_data_storage *vfinfo; + struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev; + + if (!vfdev) + continue; + + vfinfo = &adapter->vfinfo[vf]; + iounmap(vfinfo->b4_addr); + vfinfo->b4_addr = NULL; + vfinfo->vfdev = NULL; + /*pci_dev_put(vfdev);*/ + } +} + +/* Note this function is called when the user wants to enable SR-IOV + * VFs using the now deprecated module parameter + */ +void ngbe_enable_sriov(struct ngbe_adapter *adapter) +{ + int pre_existing_vfs = 0; + + pre_existing_vfs = pci_num_vf(adapter->pdev); + if (!pre_existing_vfs && !adapter->num_vfs) + return; + + /* If there are pre-existing VFs then we have to force + * use of that many - over ride any module parameter value. + * This may result from the user unloading the PF driver + * while VFs were assigned to guest VMs or because the VFs + * have been created via the new PCI SR-IOV sysfs interface. + */ + if (pre_existing_vfs) { + adapter->num_vfs = pre_existing_vfs; + dev_warn(&adapter->pdev->dev, + "Virtual Functions already enabled for this device -" + "Please reload all VF drivers to avoid spoofed packet " + "errors\n"); + } else { + int err; + /* + * The sapphire supports up to 64 VFs per physical function + * but this implementation limits allocation to 63 so that + * basic networking resources are still available to the + * physical function. If the user requests greater thn + * 63 VFs then it is an error - reset to default of zero. + */ + adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, + NGBE_MAX_VFS_DRV_LIMIT); + + err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); + if (err) { + e_err(probe, "Failed to enable PCI sriov: %d\n", err); + adapter->num_vfs = 0; + return; + } + } + + if (!__ngbe_enable_sriov(adapter)) { + ngbe_get_vfs(adapter); + return; + } + + /* If we have gotten to this point then there is no memory available + * to manage the VF devices - print message and bail. + */ + e_err(probe, "Unable to allocate memory for VF Data Storage - " + "SRIOV disabled\n"); + ngbe_disable_sriov(adapter); +} +#endif /* CONFIG_PCI_IOV */ + +int ngbe_disable_sriov(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + + /* set num VFs to 0 to prevent access to vfinfo */ + adapter->num_vfs = 0; + + /* put the reference to all of the vf devices */ +#ifdef CONFIG_PCI_IOV + ngbe_put_vfs(adapter); +#endif + /* free VF control structures */ + kfree(adapter->vfinfo); + adapter->vfinfo = NULL; + + /* free macvlan list */ + kfree(adapter->mv_list); + adapter->mv_list = NULL; + + /* if SR-IOV is already disabled then there is nothing to do */ + if (!(adapter->flags & NGBE_FLAG_SRIOV_ENABLED)) + return 0; + +#ifdef CONFIG_PCI_IOV + /* + * If our VFs are assigned we cannot shut down SR-IOV + * without causing issues, so just leave the hardware + * available but disabled + */ + if (pci_vfs_assigned(adapter->pdev)) { + e_dev_warn("Unloading driver while VFs are assigned -" + "VFs will not be deallocated\n"); + return -EPERM; + } + /* disable iov and allow time for transactions to clear */ + pci_disable_sriov(adapter->pdev); +#endif + + /* set default pool back to 0 */ + wr32m(hw, NGBE_PSR_VM_CTL, + NGBE_PSR_VM_CTL_POOL_MASK, 0); + NGBE_WRITE_FLUSH(hw); + + adapter->ring_feature[RING_F_VMDQ].offset = 0; + + /* take a breather then clean up driver data */ + msleep(100); + + adapter->flags &= ~NGBE_FLAG_SRIOV_ENABLED; + + /* Disable VMDq flag so device will be set in VM mode */ + if (adapter->ring_feature[RING_F_VMDQ].limit == 1) { + adapter->flags &= ~NGBE_FLAG_VMDQ_ENABLED; + } + + return 0; +} + +static int ngbe_set_vf_multicasts(struct ngbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + u16 entries = (msgbuf[0] & NGBE_VT_MSGINFO_MASK) + >> NGBE_VT_MSGINFO_SHIFT; + u16 *hash_list = (u16 *)&msgbuf[1]; + struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; + struct ngbe_hw *hw = &adapter->hw; + int i; + u32 vector_bit; + u32 vector_reg; + u32 mta_reg; + u32 vmolr = rd32(hw, NGBE_PSR_VM_L2CTL(vf)); + + /* only so many hash values supported */ + entries = min(entries, (u16)NGBE_MAX_VF_MC_ENTRIES); + + /* salt away the number of multi cast addresses assigned + * to this VF for later use to restore when the PF multi cast + * list changes + */ + vfinfo->num_vf_mc_hashes = entries; + + /* VFs are limited to using the MTA hash table for their multicast + * addresses */ + for (i = 0; i < entries; i++) + vfinfo->vf_mc_hashes[i] = hash_list[i]; + + for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { + vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; + vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; + /* errata 5: maintain a copy of the register table conf */ + mta_reg = hw->mac.mta_shadow[vector_reg]; + mta_reg |= (1 << vector_bit); + hw->mac.mta_shadow[vector_reg] = mta_reg; + wr32(hw, NGBE_PSR_MC_TBL(vector_reg), mta_reg); + } + vmolr |= NGBE_PSR_VM_L2CTL_ROMPE; + wr32(hw, NGBE_PSR_VM_L2CTL(vf), vmolr); + + return 0; +} + +void ngbe_restore_vf_multicasts(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + struct vf_data_storage *vfinfo; + u32 i, j; + u32 vector_bit; + u32 vector_reg; + + for (i = 0; i < adapter->num_vfs; i++) { + u32 vmolr = rd32(hw, NGBE_PSR_VM_L2CTL(i)); + vfinfo = &adapter->vfinfo[i]; + for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { + hw->addr_ctrl.mta_in_use++; + vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; + vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; + wr32m(hw, NGBE_PSR_MC_TBL(vector_reg), + 1 << vector_bit, 1 << vector_bit); + /* errata 5: maintain a copy of the reg table conf */ + hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit); + } + if (vfinfo->num_vf_mc_hashes) + vmolr |= NGBE_PSR_VM_L2CTL_ROMPE; + else + vmolr &= ~NGBE_PSR_VM_L2CTL_ROMPE; + wr32(hw, NGBE_PSR_VM_L2CTL(i), vmolr); + } + + /* Restore any VF macvlans */ + ngbe_full_sync_mac_table(adapter); +} + +int ngbe_set_vf_vlan(struct ngbe_adapter *adapter, int add, int vid, u16 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + + /* VLAN 0 is a special case, don't allow it to be removed */ + if (!vid && !add) + return 0; + + return TCALL(hw, mac.ops.set_vfta, vid, vf, (bool)add); +} + +static int ngbe_set_vf_lpe(struct ngbe_adapter *adapter, u32 max_frame, + u32 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 max_frs, reg_val; + + /* + * For sapphire we have to keep all PFs and VFs operating with + * the same max_frame value in order to avoid sending an oversize + * frame to a VF. In order to guarantee this is handled correctly + * for all cases we have several special exceptions to take into + * account before we can enable the VF for receive + */ + struct net_device *dev = adapter->netdev; + int pf_max_frame = dev->mtu + ETH_HLEN; + u32 vf_shift, vfre; + s32 err = 0; + + switch (adapter->vfinfo[vf].vf_api) { + case ngbe_mbox_api_11: + case ngbe_mbox_api_12: + case ngbe_mbox_api_13: + /* + * Version 1.1 supports jumbo frames on VFs if PF has + * jumbo frames enabled which means legacy VFs are + * disabled + */ + if (pf_max_frame > ETH_FRAME_LEN) + break; + /* fall through */ + default: + /* + * If the PF or VF are running w/ jumbo frames enabled + * we need to shut down the VF Rx path as we cannot + * support jumbo frames on legacy VFs + */ + if ((pf_max_frame > ETH_FRAME_LEN) || + (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) + err = -EINVAL; + break; + } + + /* determine VF receive enable location */ + vf_shift = vf; + + /* enable or disable receive depending on error */ + vfre = rd32(hw, NGBE_RDM_POOL_RE); + if (err) + vfre &= ~(1 << vf_shift); + else + vfre |= 1 << vf_shift; + wr32(hw, NGBE_RDM_POOL_RE, vfre); + + if (err) { + e_err(drv, "VF max_frame %d out of range\n", max_frame); + return err; + } + + /* pull current max frame size from hardware */ + max_frs = DIV_ROUND_UP(max_frame, 1024); + reg_val = rd32(hw, NGBE_MAC_WDG_TIMEOUT) & + NGBE_MAC_WDG_TIMEOUT_WTO_MASK; + if (max_frs > (reg_val + NGBE_MAC_WDG_TIMEOUT_WTO_DELTA)) { + wr32(hw, NGBE_MAC_WDG_TIMEOUT, + max_frs - NGBE_MAC_WDG_TIMEOUT_WTO_DELTA); + } + + e_info(hw, "VF requests change max MTU to %d\n", max_frame); + + return 0; +} + +void ngbe_set_vmolr(struct ngbe_hw *hw, u16 vf, bool aupe) +{ + u32 vmolr = rd32(hw, NGBE_PSR_VM_L2CTL(vf)); + vmolr |= NGBE_PSR_VM_L2CTL_BAM; + if (aupe) + vmolr |= NGBE_PSR_VM_L2CTL_AUPE; + else + vmolr &= ~NGBE_PSR_VM_L2CTL_AUPE; + wr32(hw, NGBE_PSR_VM_L2CTL(vf), vmolr); +} + +static void ngbe_set_vmvir(struct ngbe_adapter *adapter, + u16 vid, u16 qos, u16 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 vmvir = vid | (qos << VLAN_PRIO_SHIFT) | + NGBE_TDM_VLAN_INS_VLANA_DEFAULT; + + wr32(hw, NGBE_TDM_VLAN_INS(vf), vmvir); +} + +static void ngbe_clear_vmvir(struct ngbe_adapter *adapter, u32 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + + wr32(hw, NGBE_TDM_VLAN_INS(vf), 0); +} + +static inline void ngbe_vf_reset_event(struct ngbe_adapter *adapter, u16 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; + u8 num_tcs = netdev_get_num_tc(adapter->netdev); + + /* add PF assigned VLAN or VLAN 0 */ + ngbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); + + /* reset offloads to defaults */ + ngbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); + + /* set outgoing tags for VFs */ + if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { + ngbe_clear_vmvir(adapter, vf); + } else { + if (vfinfo->pf_qos || !num_tcs) + ngbe_set_vmvir(adapter, vfinfo->pf_vlan, + vfinfo->pf_qos, vf); + else + ngbe_set_vmvir(adapter, vfinfo->pf_vlan, + adapter->default_up, vf); + + if (vfinfo->spoofchk_enabled) + TCALL(hw, mac.ops.set_vlan_anti_spoofing, true, vf); + } + + /* reset multicast table array for vf */ + adapter->vfinfo[vf].num_vf_mc_hashes = 0; + + /* Flush and reset the mta with the new values */ + ngbe_set_rx_mode(adapter->netdev); + + ngbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); + + /* reset VF api back to unknown */ + adapter->vfinfo[vf].vf_api = ngbe_mbox_api_10; +} + +int ngbe_set_vf_mac(struct ngbe_adapter *adapter, + u16 vf, unsigned char *mac_addr) +{ + s32 retval = 0; + ngbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); + retval = ngbe_add_mac_filter(adapter, mac_addr, vf); + if (retval >= 0) + memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN); + else + memset(adapter->vfinfo[vf].vf_mac_addresses, 0, ETH_ALEN); + + return retval; +} + +static int ngbe_negotiate_vf_api(struct ngbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + int api = msgbuf[1]; + + switch (api) { + case ngbe_mbox_api_10: + case ngbe_mbox_api_11: + case ngbe_mbox_api_12: + case ngbe_mbox_api_13: + adapter->vfinfo[vf].vf_api = api; + return 0; + default: + break; + } + + e_info(drv, "VF %d requested invalid api version %u\n", vf, api); + + return -1; +} + +static int ngbe_get_vf_queues(struct ngbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + struct net_device *dev = adapter->netdev; + unsigned int default_tc = 0; + u8 num_tcs = netdev_get_num_tc(dev); + + /* verify the PF is supporting the correct APIs */ + switch (adapter->vfinfo[vf].vf_api) { + case ngbe_mbox_api_20: + case ngbe_mbox_api_11: + break; + default: + return -1; + } + + /* only allow 1 Tx queue for bandwidth limiting */ + msgbuf[NGBE_VF_TX_QUEUES] = 1; + msgbuf[NGBE_VF_RX_QUEUES] = 1; + + /* notify VF of need for VLAN tag stripping, and correct queue */ + if (num_tcs) + msgbuf[NGBE_VF_TRANS_VLAN] = num_tcs; + else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) + msgbuf[NGBE_VF_TRANS_VLAN] = 1; + else + msgbuf[NGBE_VF_TRANS_VLAN] = 0; + + /* notify VF of default queue */ + msgbuf[NGBE_VF_DEF_QUEUE] = default_tc; + + return 0; +} + +static int ngbe_get_vf_link_status(struct ngbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + /* verify the PF is supporting the correct APIs */ + switch (adapter->vfinfo[vf].vf_api) { + case ngbe_mbox_api_11: + case ngbe_mbox_api_12: + case ngbe_mbox_api_13: + break; + default: + return -1; + } + + if (adapter->link_up) + msgbuf[1] = NGBE_VF_STATUS_LINKUP; + else + msgbuf[1] = 0; + + return 0; +} + +static int ngbe_set_vf_macvlan(struct ngbe_adapter *adapter, + u16 vf, int index, unsigned char *mac_addr) +{ + struct list_head *pos; + struct vf_macvlans *entry; + s32 retval = 0; + + if (index <= 1) { + list_for_each(pos, &adapter->vf_mvs.l) { + entry = list_entry(pos, struct vf_macvlans, l); + if (entry->vf == vf) { + entry->vf = -1; + entry->free = true; + entry->is_macvlan = false; + ngbe_del_mac_filter(adapter, + entry->vf_macvlan, vf); + } + } + } + + /* + * If index was zero then we were asked to clear the uc list + * for the VF. We're done. + */ + if (!index) + return 0; + + entry = NULL; + + list_for_each(pos, &adapter->vf_mvs.l) { + entry = list_entry(pos, struct vf_macvlans, l); + if (entry->free) + break; + } + + /* + * If we traversed the entire list and didn't find a free entry + * then we're out of space on the RAR table. Also entry may + * be NULL because the original memory allocation for the list + * failed, which is not fatal but does mean we can't support + * VF requests for MACVLAN because we couldn't allocate + * memory for the list manangbeent required. + */ + if (!entry || !entry->free) + return -ENOSPC; + + retval = ngbe_add_mac_filter(adapter, mac_addr, vf); + if (retval >= 0) { + entry->free = false; + entry->is_macvlan = true; + entry->vf = vf; + memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); + } + + return retval; +} + +#ifdef CONFIG_PCI_IOV +int ngbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) +{ + unsigned char vf_mac_addr[6]; + struct ngbe_adapter *adapter = pci_get_drvdata(pdev); + unsigned int vfn = (event_mask & 0x7); + bool enable = ((event_mask & 0x10000000U) != 0); + + if (enable) { + memset(vf_mac_addr, 0, ETH_ALEN); + memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); + } + + return 0; +} +#endif /* CONFIG_PCI_IOV */ + +static inline void ngbe_write_qde(struct ngbe_adapter *adapter, u32 vf, + u32 qde) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 q_per_pool = 1; + u32 reg = 0; + u32 i = vf * q_per_pool; + + reg = rd32(hw, NGBE_RDM_PF_QDE); + reg |= qde << i; + + wr32(hw, NGBE_RDM_PF_QDE, reg); + +} + +static inline void ngbe_write_hide_vlan(struct ngbe_adapter *adapter, u32 vf, + u32 hide_vlan) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 q_per_pool = 1; + u32 reg = 0; + u32 i = vf * q_per_pool; + reg = rd32(hw, NGBE_RDM_PF_HIDE); + + if (hide_vlan == 1) + reg |= hide_vlan << i; + else + reg &= hide_vlan << i; + + wr32(hw, NGBE_RDM_PF_HIDE, reg); +} + +static int ngbe_vf_reset_msg(struct ngbe_adapter *adapter, u16 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; + u32 reg, vf_shift; + u32 msgbuf[4] = {0, 0, 0, 0}; + u8 *addr = (u8 *)(&msgbuf[1]); + struct net_device *dev = adapter->netdev; + int pf_max_frame; + + e_info(probe, "VF Reset msg received from vf %d\n", vf); + + /* reset the filters for the device */ + ngbe_vf_reset_event(adapter, vf); + + /* set vf mac address */ + if (!is_zero_ether_addr(vf_mac)) + ngbe_set_vf_mac(adapter, vf, vf_mac); + + vf_shift = vf; + + /* enable transmit for vf */ + wr32m(hw, NGBE_TDM_POOL_TE, + 1 << vf, 1 << vf); + + /* force drop enable for all VF Rx queues */ + ngbe_write_qde(adapter, vf, 1); + + /* enable receive for vf */ + reg = rd32(hw, NGBE_RDM_POOL_RE); + reg |= 1 << vf_shift; + + pf_max_frame = dev->mtu + ETH_HLEN; + + if (pf_max_frame > ETH_FRAME_LEN) + reg &= ~(1 << vf_shift); + wr32(hw, NGBE_RDM_POOL_RE, reg); + + /* enable VF mailbox for further messages */ + adapter->vfinfo[vf].clear_to_send = true; + + /* reply to reset with ack and vf mac address */ + msgbuf[0] = NGBE_VF_RESET; + if (!is_zero_ether_addr(vf_mac)) { + msgbuf[0] |= NGBE_VT_MSGTYPE_ACK; + memcpy(addr, vf_mac, ETH_ALEN); + } else { + msgbuf[0] |= NGBE_VT_MSGTYPE_NACK; + dev_warn(pci_dev_to_dev(adapter->pdev), + "VF %d has no MAC address assigned, you may have to " + "assign one manually\n", vf); + } + + /* + * Piggyback the multicast filter type so VF can compute the + * correct vectors + */ + msgbuf[3] = hw->mac.mc_filter_type; + ngbe_write_mbx(hw, msgbuf, NGBE_VF_PERMADDR_MSG_LEN, vf); + + return 0; +} + +static int ngbe_set_vf_mac_addr(struct ngbe_adapter *adapter, + u32 *msgbuf, u16 vf) +{ + u8 *new_mac = ((u8 *)(&msgbuf[1])); + + if (!is_valid_ether_addr(new_mac)) { + e_warn(drv, "VF %d attempted to set invalid mac\n", vf); + return -1; + } + + if (adapter->vfinfo[vf].pf_set_mac && + memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac, + ETH_ALEN)) { + u8 *pm = adapter->vfinfo[vf].vf_mac_addresses; + e_warn(drv, + "VF %d attempted to set a new MAC address but it already " + "has an administratively set MAC address " + "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", + vf, pm[0], pm[1], pm[2], pm[3], pm[4], pm[5]); + e_warn(drv, "Check the VF driver and if it is not using the " + "correct MAC address you may need to reload the VF " + "driver\n"); + return -1; + } + return ngbe_set_vf_mac(adapter, vf, new_mac) < 0; +} + +#ifdef CONFIG_PCI_IOV +static int ngbe_find_vlvf_entry(struct ngbe_hw *hw, u32 vlan) +{ + u32 vlvf; + s32 regindex; + + /* short cut the special case */ + if (vlan == 0) + return 0; + + /* Search for the vlan id in the VLVF entries */ + for (regindex = 1; regindex < NGBE_PSR_VLAN_SWC_ENTRIES; regindex++) { + wr32(hw, NGBE_PSR_VLAN_SWC_IDX, regindex); + vlvf = rd32(hw, NGBE_PSR_VLAN_SWC); + if ((vlvf & VLAN_VID_MASK) == vlan) + break; + } + + /* Return a negative value if not found */ + if (regindex >= NGBE_PSR_VLAN_SWC_ENTRIES) + regindex = -1; + + return regindex; +} +#endif /* CONFIG_PCI_IOV */ + +static int ngbe_set_vf_vlan_msg(struct ngbe_adapter *adapter, + u32 *msgbuf, u16 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + int add = (msgbuf[0] & NGBE_VT_MSGINFO_MASK) >> NGBE_VT_MSGINFO_SHIFT; + int vid = (msgbuf[1] & NGBE_PSR_VLAN_SWC_VLANID_MASK); + int err; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + if (adapter->vfinfo[vf].pf_vlan || tcs) { + e_warn(drv, + "VF %d attempted to override administratively set VLAN " + "configuration\n" + "Reload the VF driver to resume operations\n", + vf); + return -1; + } + + if (add) + adapter->vfinfo[vf].vlan_count++; + else if (adapter->vfinfo[vf].vlan_count) + adapter->vfinfo[vf].vlan_count--; + + /* in case of promiscuous mode any VLAN filter set for a VF must + * also have the PF pool added to it. + */ + if (add && adapter->netdev->flags & IFF_PROMISC) + err = ngbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); + + err = ngbe_set_vf_vlan(adapter, add, vid, vf); + if (!err && adapter->vfinfo[vf].spoofchk_enabled) + TCALL(hw, mac.ops.set_vlan_anti_spoofing, true, vf); + +#ifdef CONFIG_PCI_IOV + /* Go through all the checks to see if the VLAN filter should + * be wiped completely. + */ + if (!add && adapter->netdev->flags & IFF_PROMISC) { + u32 bits = 0, vlvf; + s32 reg_ndx; + + reg_ndx = ngbe_find_vlvf_entry(hw, vid); + if (reg_ndx < 0) + goto out; + wr32(hw, NGBE_PSR_VLAN_SWC_IDX, reg_ndx); + vlvf = rd32(hw, NGBE_PSR_VLAN_SWC); + /* See if any other pools are set for this VLAN filter + * entry other than the PF. + */ + if (VMDQ_P(0) < 32) { + bits = rd32(hw, NGBE_PSR_VLAN_SWC_VM_L); + bits &= ~(1 << VMDQ_P(0)); + } else { + bits &= ~(1 << (VMDQ_P(0) - 32)); + bits |= rd32(hw, NGBE_PSR_VLAN_SWC_VM_L); + } + + /* If the filter was removed then ensure PF pool bit + * is cleared if the PF only added itself to the pool + * because the PF is in promiscuous mode. + */ + if ((vlvf & VLAN_VID_MASK) == vid && + !test_bit(vid, adapter->active_vlans) && + !bits) + ngbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); + } + +out: +#endif + return err; +} + +static int ngbe_set_vf_macvlan_msg(struct ngbe_adapter *adapter, + u32 *msgbuf, u16 vf) +{ + u8 *new_mac = ((u8 *)(&msgbuf[1])); + int index = (msgbuf[0] & NGBE_VT_MSGINFO_MASK) >> + NGBE_VT_MSGINFO_SHIFT; + int err; + + if (adapter->vfinfo[vf].pf_set_mac && index > 0) { + e_warn(drv, + "VF %d requested MACVLAN filter but is administratively denied\n", + vf); + return -1; + } + + /* An non-zero index indicates the VF is setting a filter */ + if (index) { + if (!is_valid_ether_addr(new_mac)) { + e_warn(drv, "VF %d attempted to set invalid mac\n", vf); + return -1; + } + + /* + * If the VF is allowed to set MAC filters then turn off + * anti-spoofing to avoid false positives. + */ + if (adapter->vfinfo[vf].spoofchk_enabled) + ngbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); + } + + err = ngbe_set_vf_macvlan(adapter, vf, index, new_mac); + if (err == -ENOSPC) + e_warn(drv, + "VF %d has requested a MACVLAN filter but there is no " + "space for it\n", + vf); + + return err < 0; +} + +static int ngbe_update_vf_xcast_mode(struct ngbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + int xcast_mode = msgbuf[1]; + u32 vmolr, fctrl, disable, enable; + + /* verify the PF is supporting the correct APIs */ + switch (adapter->vfinfo[vf].vf_api) { + case ngbe_mbox_api_12: + /* promisc introduced in 1.3 version */ + if (xcast_mode == NGBEVF_XCAST_MODE_PROMISC) + return -EOPNOTSUPP; + /* Fall threw */ + case ngbe_mbox_api_13: + break; + default: + return -EOPNOTSUPP; + } + + if (adapter->vfinfo[vf].xcast_mode == xcast_mode) + goto out; + + switch (xcast_mode) { + case NGBEVF_XCAST_MODE_NONE: + disable = NGBE_PSR_VM_L2CTL_BAM | + NGBE_PSR_VM_L2CTL_ROMPE | + NGBE_PSR_VM_L2CTL_MPE | + NGBE_PSR_VM_L2CTL_UPE | + NGBE_PSR_VM_L2CTL_VPE; + enable = 0; + break; + case NGBEVF_XCAST_MODE_MULTI: + disable = NGBE_PSR_VM_L2CTL_MPE | + NGBE_PSR_VM_L2CTL_UPE | + NGBE_PSR_VM_L2CTL_VPE; + enable = NGBE_PSR_VM_L2CTL_BAM | + NGBE_PSR_VM_L2CTL_ROMPE; + break; + case NGBEVF_XCAST_MODE_ALLMULTI: + disable = NGBE_PSR_VM_L2CTL_UPE | + NGBE_PSR_VM_L2CTL_VPE; + enable = NGBE_PSR_VM_L2CTL_BAM | + NGBE_PSR_VM_L2CTL_ROMPE | + NGBE_PSR_VM_L2CTL_MPE; + break; + case NGBEVF_XCAST_MODE_PROMISC: + fctrl = rd32(hw, NGBE_PSR_CTL); + if (!(fctrl & NGBE_PSR_CTL_UPE)) { + /* VF promisc requires PF in promisc */ + e_warn(drv, + "Enabling VF promisc requires PF in promisc\n"); + return -EPERM; + } + disable = 0; + enable = NGBE_PSR_VM_L2CTL_BAM | + NGBE_PSR_VM_L2CTL_ROMPE | + NGBE_PSR_VM_L2CTL_MPE | + NGBE_PSR_VM_L2CTL_UPE | + NGBE_PSR_VM_L2CTL_VPE; + break; + default: + return -EOPNOTSUPP; + } + + vmolr = rd32(hw, NGBE_PSR_VM_L2CTL(vf)); + vmolr &= ~disable; + vmolr |= enable; + wr32(hw, NGBE_PSR_VM_L2CTL(vf), vmolr); + + adapter->vfinfo[vf].xcast_mode = xcast_mode; + +out: + msgbuf[1] = xcast_mode; + + return 0; +} + +static int ngbe_rcv_msg_from_vf(struct ngbe_adapter *adapter, u16 vf) +{ + u16 mbx_size = NGBE_VXMAILBOX_SIZE; + u32 msgbuf[NGBE_VXMAILBOX_SIZE]; + struct ngbe_hw *hw = &adapter->hw; + s32 retval; + + retval = ngbe_read_mbx(hw, msgbuf, mbx_size, vf); + + if (retval) { + pr_err("Error receiving message from VF\n"); + return retval; + } + + /* this is a message we already processed, do nothing */ + if (msgbuf[0] & (NGBE_VT_MSGTYPE_ACK | NGBE_VT_MSGTYPE_NACK)) + return retval; + + /* flush the ack before we write any messages back */ + NGBE_WRITE_FLUSH(hw); + + if (msgbuf[0] == NGBE_VF_RESET) + return ngbe_vf_reset_msg(adapter, vf); + + /* + * until the vf completes a virtual function reset it should not be + * allowed to start any configuration. + */ + + if (!adapter->vfinfo[vf].clear_to_send) { + msgbuf[0] |= NGBE_VT_MSGTYPE_NACK; + ngbe_write_mbx(hw, msgbuf, 1, vf); + return retval; + } + + switch ((msgbuf[0] & 0xFFFF)) { + case NGBE_VF_SET_MAC_ADDR: + retval = ngbe_set_vf_mac_addr(adapter, msgbuf, vf); + break; + case NGBE_VF_SET_MULTICAST: + retval = ngbe_set_vf_multicasts(adapter, msgbuf, vf); + break; + case NGBE_VF_SET_VLAN: + retval = ngbe_set_vf_vlan_msg(adapter, msgbuf, vf); + break; + case NGBE_VF_SET_LPE: + if (msgbuf[1] > NGBE_MAX_JUMBO_FRAME_SIZE) { + e_err(drv, "VF max_frame %d exceed MAX_JUMBO_FRAME_SIZE\n", msgbuf[1]); + return -EINVAL; + } + retval = ngbe_set_vf_lpe(adapter, msgbuf[1], vf); + break; + case NGBE_VF_SET_MACVLAN: + retval = ngbe_set_vf_macvlan_msg(adapter, msgbuf, vf); + break; + case NGBE_VF_API_NEGOTIATE: + retval = ngbe_negotiate_vf_api(adapter, msgbuf, vf); + break; + case NGBE_VF_GET_QUEUES: + retval = ngbe_get_vf_queues(adapter, msgbuf, vf); + break; + case NGBE_VF_UPDATE_XCAST_MODE: + retval = ngbe_update_vf_xcast_mode(adapter, msgbuf, vf); + break; + case NGBE_VF_GET_LINK_STATUS: + retval = ngbe_get_vf_link_status(adapter, msgbuf, vf); + break; + case NGBE_VF_BACKUP: + break; + default: + e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); + retval = NGBE_ERR_MBX; + break; + } + + /* notify the VF of the results of what it sent us */ + if (retval) + msgbuf[0] |= NGBE_VT_MSGTYPE_NACK; + else + msgbuf[0] |= NGBE_VT_MSGTYPE_ACK; + + msgbuf[0] |= NGBE_VT_MSGTYPE_CTS; + + ngbe_write_mbx(hw, msgbuf, mbx_size, vf); + + return retval; +} + +static void ngbe_rcv_ack_from_vf(struct ngbe_adapter *adapter, u16 vf) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 msg = NGBE_VT_MSGTYPE_NACK; + + /* if device isn't clear to send it shouldn't be reading either */ + if (!adapter->vfinfo[vf].clear_to_send) + ngbe_write_mbx(hw, &msg, 1, vf); +} + +void ngbe_msg_task(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u16 vf; + + for (vf = 0; vf < adapter->num_vfs; vf++) { + /* process any reset requests */ + if (!ngbe_check_for_rst(hw, vf)) + ngbe_vf_reset_event(adapter, vf); + + /* process any messages pending */ + if (!ngbe_check_for_msg(hw, vf)) + ngbe_rcv_msg_from_vf(adapter, vf); + + /* process any acks */ + if (!ngbe_check_for_ack(hw, vf)) + ngbe_rcv_ack_from_vf(adapter, vf); + } +} + +void ngbe_disable_tx_rx(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + + /* disable transmit and receive for all vfs */ + wr32(hw, NGBE_TDM_POOL_TE, 0); + wr32(hw, NGBE_RDM_POOL_RE, 0); +} + +static inline void ngbe_ping_vf(struct ngbe_adapter *adapter, int vf) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 ping; + + ping = NGBE_PF_CONTROL_MSG; + if (adapter->vfinfo[vf].clear_to_send) + ping |= NGBE_VT_MSGTYPE_CTS; + ngbe_write_mbx(hw, &ping, 1, vf); +} + +void ngbe_ping_all_vfs(struct ngbe_adapter *adapter) +{ + struct ngbe_hw *hw = &adapter->hw; + u32 ping; + u16 i; + + for (i = 0 ; i < adapter->num_vfs; i++) { + ping = NGBE_PF_CONTROL_MSG; + if (adapter->vfinfo[i].clear_to_send) + ping |= NGBE_VT_MSGTYPE_CTS; + ngbe_write_mbx(hw, &ping, 1, i); + } +} + +int ngbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + if (vf >= adapter->num_vfs) + return -EINVAL; + + /* nothing to do */ + if (adapter->vfinfo[vf].trusted == setting) + return 0; + + adapter->vfinfo[vf].trusted = setting; + + /* reset VF to reconfigure features */ + adapter->vfinfo[vf].clear_to_send = false; + ngbe_ping_vf(adapter, vf); + + e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not "); + + return 0; +} + +#ifdef CONFIG_PCI_IOV +static int ngbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) +{ + struct ngbe_adapter *adapter = pci_get_drvdata(dev); + int err = 0; + int i; + int pre_existing_vfs = pci_num_vf(dev); + + if (!(adapter->flags & NGBE_FLAG_SRIOV_CAPABLE)) { + e_dev_warn("SRIOV not supported on this device\n"); + return -EOPNOTSUPP; + } + + if (pre_existing_vfs && pre_existing_vfs != num_vfs) + err = ngbe_disable_sriov(adapter); + else if (pre_existing_vfs && pre_existing_vfs == num_vfs) + goto out; + + if (err) + goto err_out; + + /* While the SR-IOV capability structure reports total VFs to be + * 8 we limit the actual number that can be allocated to 7 so + * that some transmit/receive resources can be reserved to the + * PF. The PCI bus driver already checks for other values out of + * range. + */ + if ((num_vfs + adapter->num_vmdqs) > NGBE_MAX_VF_FUNCTIONS) { + err = -EPERM; + goto err_out; + } + + adapter->num_vfs = num_vfs; + + err = __ngbe_enable_sriov(adapter); + if (err) + goto err_out; + + for (i = 0; i < adapter->num_vfs; i++) + ngbe_vf_configuration(dev, (i | 0x10000000)); + + err = pci_enable_sriov(dev, num_vfs); + if (err) { + e_dev_warn("Failed to enable PCI sriov: %d\n", err); + goto err_out; + } + ngbe_get_vfs(adapter); + msleep(100); + ngbe_sriov_reinit(adapter); +out: + return num_vfs; +err_out: + return err; +} + +static int ngbe_pci_sriov_disable(struct pci_dev *dev) +{ + struct ngbe_adapter *adapter = pci_get_drvdata(dev); + int err; + u32 current_flags = adapter->flags; + + err = ngbe_disable_sriov(adapter); + + /* Only reinit if no error and state changed */ + if (!err && current_flags != adapter->flags) + ngbe_sriov_reinit(adapter); + + return err; +} +#endif + +int ngbe_pci_sriov_configure(struct pci_dev __maybe_unused *dev, + int __maybe_unused num_vfs) +{ +#ifdef CONFIG_PCI_IOV + if (num_vfs == 0) + return ngbe_pci_sriov_disable(dev); + else + return ngbe_pci_sriov_enable(dev, num_vfs); +#endif + return 0; +} + +int ngbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) +{ + s32 retval = 0; + struct ngbe_adapter *adapter = netdev_priv(netdev); + + if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) + return -EINVAL; + + dev_info(pci_dev_to_dev(adapter->pdev), + "setting MAC %pM on VF %d\n", mac, vf); + dev_info(pci_dev_to_dev(adapter->pdev), + "Reload the VF driver to make this change effective.\n"); + retval = ngbe_set_vf_mac(adapter, vf, mac); + if (retval >= 0) { + adapter->vfinfo[vf].pf_set_mac = true; + if (test_bit(__NGBE_DOWN, &adapter->state)) { + dev_warn(pci_dev_to_dev(adapter->pdev), + "The VF MAC address has been set, but the PF " + "device is not up.\n"); + dev_warn(pci_dev_to_dev(adapter->pdev), + "Bring the PF device up before attempting to " + "use the VF device.\n"); + } + } else { + dev_warn(pci_dev_to_dev(adapter->pdev), + "The VF MAC address was NOT set due to invalid or " + "duplicate MAC address.\n"); + } + + return retval; +} + +static int ngbe_enable_port_vlan(struct ngbe_adapter *adapter, + int vf, u16 vlan, u8 qos) +{ + struct ngbe_hw *hw = &adapter->hw; + int err; + + err = ngbe_set_vf_vlan(adapter, true, vlan, vf); + if (err) + goto out; + ngbe_set_vmvir(adapter, vlan, qos, vf); + ngbe_set_vmolr(hw, vf, false); + if (adapter->vfinfo[vf].spoofchk_enabled) + TCALL(hw, mac.ops.set_vlan_anti_spoofing, true, vf); + adapter->vfinfo[vf].vlan_count++; + /* enable hide vlan */ + ngbe_write_qde(adapter, vf, 1); + ngbe_write_hide_vlan(adapter, vf, 1); + adapter->vfinfo[vf].pf_vlan = vlan; + adapter->vfinfo[vf].pf_qos = qos; + dev_info(pci_dev_to_dev(adapter->pdev), + "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); + if (test_bit(__NGBE_DOWN, &adapter->state)) { + dev_warn(pci_dev_to_dev(adapter->pdev), + "The VF VLAN has been set, but the PF device is not " + "up.\n"); + dev_warn(pci_dev_to_dev(adapter->pdev), + "Bring the PF device up before attempting to use the VF " + "device.\n"); + } + +out: + return err; +} + +static int ngbe_disable_port_vlan(struct ngbe_adapter *adapter, int vf) +{ + struct ngbe_hw *hw = &adapter->hw; + int err; + + err = ngbe_set_vf_vlan(adapter, false, + adapter->vfinfo[vf].pf_vlan, vf); + ngbe_clear_vmvir(adapter, vf); + ngbe_set_vmolr(hw, vf, true); + TCALL(hw, mac.ops.set_vlan_anti_spoofing, false, vf); + if (adapter->vfinfo[vf].vlan_count) + adapter->vfinfo[vf].vlan_count--; + /* disable hide vlan */ + ngbe_write_hide_vlan(adapter, vf, 0); + adapter->vfinfo[vf].pf_vlan = 0; + adapter->vfinfo[vf].pf_qos = 0; + + return err; +} + +int ngbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, + u8 qos, __be16 vlan_proto) +{ + int err = 0; + struct ngbe_adapter *adapter = netdev_priv(netdev); + + /* VLAN IDs accepted range 0-4094 */ + if ((vf >= adapter->num_vfs) || (vlan > VLAN_VID_MASK-1) || (qos > 7)) + return -EINVAL; + + if (vlan_proto != htons(ETH_P_8021Q)) + return -EPROTONOSUPPORT; + + if (vlan || qos) { + /* + * Check if there is already a port VLAN set, if so + * we have to delete the old one first before we + * can set the new one. The usage model had + * previously assumed the user would delete the + * old port VLAN before setting a new one but this + * is not necessarily the case. + */ + if (adapter->vfinfo[vf].pf_vlan) + err = ngbe_disable_port_vlan(adapter, vf); + if (err) + goto out; + err = ngbe_enable_port_vlan(adapter, vf, vlan, qos); + + } else { + err = ngbe_disable_port_vlan(adapter, vf); + } +out: + return err; +} + +/* no effect */ +int ngbe_ndo_set_vf_bw(struct net_device *netdev, + int vf, + int min_tx_rate, + int max_tx_rate) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + + /* verify VF is active */ + if (vf >= adapter->num_vfs) + return -EINVAL; + + /* verify link is up */ + if (!adapter->link_up) + return -EINVAL; + + /* verify we are linked at 1 or 10 Gbps */ + if (adapter->link_speed < NGBE_LINK_SPEED_1GB_FULL) + return -EINVAL; + + /* store values */ + adapter->vfinfo[vf].min_tx_rate = min_tx_rate; + adapter->vfinfo[vf].max_tx_rate = max_tx_rate; + + return 0; +} + +int ngbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + struct ngbe_hw *hw = &adapter->hw; + u32 regval; + + if (vf >= adapter->num_vfs) + return -EINVAL; + + adapter->vfinfo[vf].spoofchk_enabled = setting; + + if (vf < 32) { + regval = (setting << vf); + wr32m(hw, NGBE_TDM_MAC_AS_L, + regval | (1 << vf), regval); + + if (adapter->vfinfo[vf].vlan_count) { + wr32m(hw, NGBE_TDM_VLAN_AS_L, + regval | (1 << vf), regval); + } + } + + return 0; +} + +int ngbe_ndo_get_vf_config(struct net_device *netdev, + int vf, struct ifla_vf_info *ivi) +{ + struct ngbe_adapter *adapter = netdev_priv(netdev); + if (vf >= adapter->num_vfs) + return -EINVAL; + ivi->vf = vf; + memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); + + ivi->max_tx_rate = adapter->vfinfo[vf].max_tx_rate; + ivi->min_tx_rate = adapter->vfinfo[vf].min_tx_rate; + + ivi->vlan = adapter->vfinfo[vf].pf_vlan; + ivi->qos = adapter->vfinfo[vf].pf_qos; + + ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; + ivi->trusted = adapter->vfinfo[vf].trusted; + + return 0; +} diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_sriov.h b/drivers/net/ethernet/netswift/ngbe/ngbe_sriov.h new file mode 100644 index 0000000000000..958c5303f72ad --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_sriov.h @@ -0,0 +1,63 @@ +/* + * WangXun 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 _NGBE_SRIOV_H_ +#define _NGBE_SRIOV_H_ + +/* ngbe driver limit the max number of VFs could be enabled to + * 7 (NGBE_MAX_VF_FUNCTIONS - 1) + */ +#define NGBE_MAX_VFS_DRV_LIMIT (NGBE_MAX_VF_FUNCTIONS - 1) + +void ngbe_restore_vf_multicasts(struct ngbe_adapter *adapter); +int ngbe_set_vf_vlan(struct ngbe_adapter *adapter, int add, int vid, u16 vf); +void ngbe_set_vmolr(struct ngbe_hw *hw, u16 vf, bool aupe); +void ngbe_msg_task(struct ngbe_adapter *adapter); +int ngbe_set_vf_mac(struct ngbe_adapter *adapter, + u16 vf, unsigned char *mac_addr); +void ngbe_disable_tx_rx(struct ngbe_adapter *adapter); +void ngbe_ping_all_vfs(struct ngbe_adapter *adapter); + +int ngbe_ndo_set_vf_mac(struct net_device *netdev, int queue, u8 *mac); + +int ngbe_ndo_set_vf_vlan(struct net_device *netdev, int queue, u16 vlan, + u8 qos, __be16 vlan_proto); + +int ngbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate, + int max_tx_rate); + +int ngbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting); +int ngbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting); +int ngbe_ndo_get_vf_config(struct net_device *netdev, + int vf, struct ifla_vf_info *ivi); + +int ngbe_disable_sriov(struct ngbe_adapter *adapter); +#ifdef CONFIG_PCI_IOV +int ngbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask); +void ngbe_enable_sriov(struct ngbe_adapter *adapter); +#endif +int ngbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs); + +#define NGBE_VF_STATUS_LINKUP 0x1 + +/* + * These are defined in ngbe_type.h on behalf of the VF driver + * but we need them here unwrapped for the PF driver. + */ +//#define NGBE_DEV_ID_SP_VF 0x1000 +#endif /* _NGBE_SRIOV_H_ */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.c b/drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.c new file mode 100644 index 0000000000000..559d02b2feeb2 --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.c @@ -0,0 +1,222 @@ +/* + * WangXun 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 "ngbe.h" +#include "ngbe_hw.h" +#include "ngbe_type.h" + +#ifdef CONFIG_NGBE_SYSFS + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/sysfs.h> +#include <linux/kobject.h> +#include <linux/device.h> +#include <linux/netdevice.h> +#include <linux/time.h> +#ifdef CONFIG_NGBE_HWMON +#include <linux/hwmon.h> +#endif + +#ifdef CONFIG_NGBE_HWMON +/* hwmon callback functions */ +static ssize_t ngbe_hwmon_show_temp(struct device __always_unused *dev, + struct device_attribute *attr, + char *buf) +{ + struct hwmon_attr *ngbe_attr = container_of(attr, struct hwmon_attr, + dev_attr); + unsigned int value; + + /* reset the temp field */ + TCALL(ngbe_attr->hw, mac.ops.get_thermal_sensor_data); + + value = ngbe_attr->sensor->temp; + + /* display millidegree */ + value *= 1000; + + return sprintf(buf, "%u\n", value); +} + +static ssize_t ngbe_hwmon_show_alarmthresh(struct device __always_unused *dev, + struct device_attribute *attr, + char *buf) +{ + struct hwmon_attr *ngbe_attr = container_of(attr, struct hwmon_attr, + dev_attr); + unsigned int value = ngbe_attr->sensor->alarm_thresh; + + /* display millidegree */ + value *= 1000; + + return sprintf(buf, "%u\n", value); +} + +static ssize_t ngbe_hwmon_show_dalarmthresh(struct device __always_unused *dev, + struct device_attribute *attr, + char *buf) +{ + struct hwmon_attr *ngbe_attr = container_of(attr, struct hwmon_attr, + dev_attr); + unsigned int value = ngbe_attr->sensor->dalarm_thresh; + + /* display millidegree */ + value *= 1000; + + return sprintf(buf, "%u\n", value); +} + +/** + * ngbe_add_hwmon_attr - Create hwmon attr table for a hwmon sysfs file. + * @adapter: pointer to the adapter structure + * @type: type of sensor data to display + * + * For each file we want in hwmon's sysfs interface we need a device_attribute + * This is included in our hwmon_attr struct that contains the references to + * the data structures we need to get the data to display. + */ +static int ngbe_add_hwmon_attr(struct ngbe_adapter *adapter, int type) +{ + int rc; + unsigned int n_attr; + struct hwmon_attr *ngbe_attr; + + n_attr = adapter->ngbe_hwmon_buff.n_hwmon; + ngbe_attr = &adapter->ngbe_hwmon_buff.hwmon_list[n_attr]; + + switch (type) { + case NGBE_HWMON_TYPE_TEMP: + ngbe_attr->dev_attr.show = ngbe_hwmon_show_temp; + snprintf(ngbe_attr->name, sizeof(ngbe_attr->name), + "temp%u_input", 0); + break; + case NGBE_HWMON_TYPE_ALARMTHRESH: + ngbe_attr->dev_attr.show = ngbe_hwmon_show_alarmthresh; + snprintf(ngbe_attr->name, sizeof(ngbe_attr->name), + "temp%u_alarmthresh", 0); + break; + case NGBE_HWMON_TYPE_DALARMTHRESH: + ngbe_attr->dev_attr.show = ngbe_hwmon_show_dalarmthresh; + snprintf(ngbe_attr->name, sizeof(ngbe_attr->name), + "temp%u_dalarmthresh", 0); + break; + default: + rc = -EPERM; + return rc; + } + + /* These always the same regardless of type */ + ngbe_attr->sensor = + &adapter->hw.mac.thermal_sensor_data.sensor; + ngbe_attr->hw = &adapter->hw; + ngbe_attr->dev_attr.store = NULL; + ngbe_attr->dev_attr.attr.mode = S_IRUGO; + ngbe_attr->dev_attr.attr.name = ngbe_attr->name; + + rc = device_create_file(pci_dev_to_dev(adapter->pdev), + &ngbe_attr->dev_attr); + + if (rc == 0) + ++adapter->ngbe_hwmon_buff.n_hwmon; + + return rc; +} +#endif /* CONFIG_NGBE_HWMON */ + +static void ngbe_sysfs_del_adapter( + struct ngbe_adapter __maybe_unused *adapter) +{ +#ifdef CONFIG_NGBE_HWMON + int i; + + if (adapter == NULL) + return; + + for (i = 0; i < adapter->ngbe_hwmon_buff.n_hwmon; i++) { + device_remove_file(pci_dev_to_dev(adapter->pdev), + &adapter->ngbe_hwmon_buff.hwmon_list[i].dev_attr); + } + + kfree(adapter->ngbe_hwmon_buff.hwmon_list); + + if (adapter->ngbe_hwmon_buff.device) + hwmon_device_unregister(adapter->ngbe_hwmon_buff.device); +#endif /* CONFIG_NGBE_HWMON */ +} + +/* called from ngbe_main.c */ +void ngbe_sysfs_exit(struct ngbe_adapter *adapter) +{ + ngbe_sysfs_del_adapter(adapter); +} + +/* called from ngbe_main.c */ +int ngbe_sysfs_init(struct ngbe_adapter *adapter) +{ + int rc = 0; +#ifdef CONFIG_NGBE_HWMON + struct hwmon_buff *ngbe_hwmon = &adapter->ngbe_hwmon_buff; + int n_attrs; + +#endif /* CONFIG_NGBE_HWMON */ + if (adapter == NULL) + goto err; + +#ifdef CONFIG_NGBE_HWMON + + /* Don't create thermal hwmon interface if no sensors present */ + if (TCALL(&adapter->hw, mac.ops.init_thermal_sensor_thresh)) + goto no_thermal; + + /* + * Allocation space for max attributs + * max num sensors * values (temp, alamthresh, dalarmthresh) + */ + n_attrs = 3; + ngbe_hwmon->hwmon_list = kcalloc(n_attrs, sizeof(struct hwmon_attr), + GFP_KERNEL); + if (!ngbe_hwmon->hwmon_list) { + rc = -ENOMEM; + goto err; + } + + ngbe_hwmon->device = + hwmon_device_register(pci_dev_to_dev(adapter->pdev)); + if (IS_ERR(ngbe_hwmon->device)) { + rc = PTR_ERR(ngbe_hwmon->device); + goto err; + } + + /* Bail if any hwmon attr struct fails to initialize */ + rc = ngbe_add_hwmon_attr(adapter, NGBE_HWMON_TYPE_TEMP); + rc |= ngbe_add_hwmon_attr(adapter, NGBE_HWMON_TYPE_ALARMTHRESH); + rc |= ngbe_add_hwmon_attr(adapter, NGBE_HWMON_TYPE_DALARMTHRESH); + if (rc) + goto err; + +no_thermal: +#endif /* CONFIG_NGBE_HWMON */ + goto exit; + +err: + ngbe_sysfs_del_adapter(adapter); +exit: + return rc; +} +#endif /* CONFIG_NGBE_SYSFS */ diff --git a/drivers/net/ethernet/netswift/ngbe/ngbe_type.h b/drivers/net/ethernet/netswift/ngbe/ngbe_type.h new file mode 100644 index 0000000000000..4e7f627edbbce --- /dev/null +++ b/drivers/net/ethernet/netswift/ngbe/ngbe_type.h @@ -0,0 +1,2941 @@ +/* + * WangXun 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 _NGBE_TYPE_H_ +#define _NGBE_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. + * + * - NGBE_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. + * + * - NGBE_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. + * + * - NGBE_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. + * + * - NGBE_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. + * + * - NGBE_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. + * + * - NGBE_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.) + */ + +/* 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 + +/************ ngbe_register.h ************/ +/* Vendor ID */ +#ifndef PCI_VENDOR_ID_TRUSTNETIC +#define PCI_VENDOR_ID_TRUSTNETIC 0x8088 +#endif + +/* Device IDs */ +/* copper */ +#define NGBE_DEV_ID_EM_TEST 0x0000 +#define NGBE_DEV_ID_EM_WX1860AL_W 0x0100 +#define NGBE_DEV_ID_EM_WX1860A2 0x0101 +#define NGBE_DEV_ID_EM_WX1860A2S 0x0102 +#define NGBE_DEV_ID_EM_WX1860A4 0x0103 +#define NGBE_DEV_ID_EM_WX1860A4S 0x0104 +#define NGBE_DEV_ID_EM_WX1860AL2 0x0105 +#define NGBE_DEV_ID_EM_WX1860AL2S 0x0106 +#define NGBE_DEV_ID_EM_WX1860AL4 0x0107 +#define NGBE_DEV_ID_EM_WX1860AL4S 0x0108 +#define NGBE_DEV_ID_EM_WX1860NCSI 0x0109 +#define NGBE_DEV_ID_EM_WX1860A1 0x010a +#define NGBE_DEV_ID_EM_WX1860AL1 0x010b + +/* transfer units */ +#define NGBE_KB_TO_B 1024 + +/* Subsystem ID */ +#define NGBE_WX1860AL_INTERNAL 0x0410 +#define NGBE_WX1860AL_ZTE5201_RJ45 0x0100 +#define NGBE_WX1860AL_M88E1512_RJ45 0x0200 +#define NGBE_WX1860AL_M88E1512_SFP 0x0403 +#define NGBE_WX1860AL_YT8521S_SFP 0x0460 + +#define NGBE_SUBSYSTEM_ID_EM_SF100F_LP 0x0103 +#define NGBE_SUBSYSTEM_ID_EM_SF100HF_LP 0x0103 +#define NGBE_SUBSYSTEM_ID_EM_SF200T 0x0201 +#define NGBE_SUBSYSTEM_ID_EM_SF200T_S 0x0210 +#define NGBE_SUBSYSTEM_ID_EM_SF400T 0x0401 +#define NGBE_SUBSYSTEM_ID_EM_SF400T_S 0x0410 +#define NGBE_SUBSYSTEM_ID_EM_SF200HT 0x0202 +#define NGBE_SUBSYSTEM_ID_EM_SF200HT_S 0x0220 +#define NGBE_SUBSYSTEM_ID_EM_SF400HT 0x0402 +#define NGBE_SUBSYSTEM_ID_EM_SF400HT_S 0x0420 +#define NGBE_SUBSYSTEM_ID_EM_SF200HXT 0x0230 +#define NGBE_SUBSYSTEM_ID_EM_SF400HXT 0x0430 +#define NGBE_SUBSYSTEM_ID_EM_SF400_OCP 0x0440 +#define NGBE_SUBSYSTEM_ID_EM_SF400_LY 0x0450 +#define NGBE_SUBSYSTEM_ID_EM_SF400_LY_YT 0x0470 + +#define INTERNAL_SFP 0x0003 +#define OCP_CARD 0x0040 +#define LY_M88E1512_SFP 0x0050 +#define YT8521S_SFP 0x0060 +#define LY_YT8521S_SFP 0x0070 + +#define OEM_MASK 0x00F0 +#define INTERNAL_SFP_MASK 0x000F + +#define NCSI_SUP 0x8000 +#define NCSI_SUP_MASK 0x8000 + +#define WOL_SUP 0x4000 +#define WOL_SUP_MASK 0x4000 + +/* MDIO Manageable Devices (MMDs). */ +#define NGBE_MDIO_PMA_PMD_DEV_TYPE 0x1 /* PMA and PMD */ +#define NGBE_MDIO_PCS_DEV_TYPE 0x3 /* Physical Coding Sublayer*/ +#define NGBE_MDIO_PHY_XS_DEV_TYPE 0x4 /* PHY Extender Sublayer */ +#define NGBE_MDIO_AUTO_NEG_DEV_TYPE 0x7 /* Auto-Negotiation */ +#define NGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE 0x1E /* Vendor specific 1 */ + +/* phy register definitions */ +/* VENDOR_SPECIFIC_1_DEV regs */ +#define NGBE_MDIO_VENDOR_SPECIFIC_1_STATUS 0x1 /* VS1 Status Reg */ +#define NGBE_MDIO_VENDOR_SPECIFIC_1_LINK_STATUS 0x0008 /* 1 = Link Up */ +#define NGBE_MDIO_VENDOR_SPECIFIC_1_SPEED_STATUS 0x0010 /* 0-10G, 1-1G */ + +/* AUTO_NEG_DEV regs */ +#define NGBE_MDIO_AUTO_NEG_CONTROL 0x0 /* AUTO_NEG Control Reg */ +#define NGBE_MDIO_AUTO_NEG_ADVT 0x10 /* AUTO_NEG Advt Reg */ +#define NGBE_MDIO_AUTO_NEG_LP 0x13 /* AUTO_NEG LP Reg */ +#define NGBE_MDIO_AUTO_NEG_LP_STATUS 0xE820 /* AUTO NEG RX LP Status + * Reg */ +#define NGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG 0xC400 /* 1G Provisioning 1 */ +#define NGBE_MII_AUTONEG_XNP_TX_REG 0x17 /* 1G XNP Transmit */ +#define NGBE_MII_AUTONEG_ADVERTISE_REG 0x10 /* 100M Advertisement */ + +#define NGBE_MDIO_AUTO_NEG_1000BASE_EEE_ADVT 0x4 +#define NGBE_MDIO_AUTO_NEG_100BASE_EEE_ADVT 0x2 +#define NGBE_MDIO_AUTO_NEG_LP_1000BASE_CAP 0x8000 + +#define NGBE_MII_1GBASE_T_ADVERTISE_XNP_TX 0x4000 /* full duplex, bit:14*/ +#define NGBE_MII_1GBASE_T_ADVERTISE 0x8000 /* full duplex, bit:15*/ +#define NGBE_MII_100BASE_T_ADVERTISE 0x0100 /* full duplex, bit:8 */ +#define NGBE_MII_100BASE_T_ADVERTISE_HALF 0x0080 /* half duplex, bit:7 */ +#define NGBE_MII_RESTART 0x200 +#define NGBE_MII_AUTONEG_COMPLETE 0x20 +#define NGBE_MII_AUTONEG_LINK_UP 0x04 +#define NGBE_MII_AUTONEG_REG 0x0 + +/* PHY_XS_DEV regs */ +#define NGBE_MDIO_PHY_XS_CONTROL 0x0 /* PHY_XS Control Reg */ +#define NGBE_MDIO_PHY_XS_RESET 0x8000 /* PHY_XS Reset */ + +/* Media-dependent registers. */ +#define NGBE_MDIO_PHY_ID_HIGH 0x2 /* PHY ID High Reg*/ +#define NGBE_MDIO_PHY_ID_LOW 0x3 /* PHY ID Low Reg*/ +#define NGBE_MDIO_PHY_SPEED_ABILITY 0x4 /* Speed Ability Reg */ +#define NGBE_MDIO_PHY_EXT_ABILITY 0xB /* Ext Ability Reg */ + +#define NGBE_MDIO_PHY_SPEED_1G 0x0010 /* 1G capable */ +#define NGBE_MDIO_PHY_SPEED_100M 0x0020 /* 100M capable */ +#define NGBE_MDIO_PHY_SPEED_10M 0x0040 /* 10M capable */ + +#define NGBE_MDIO_PHY_1000BASET_ABILITY 0x0020 /* 1000BaseT capable */ +#define NGBE_MDIO_PHY_100BASETX_ABILITY 0x0080 /* 100BaseTX capable */ + +#define NGBE_PHY_REVISION_MASK 0xFFFFFFF0U +#define NGBE_MAX_PHY_ADDR 32 + +#define NGBE_MDIO_CLAUSE_SELECT 0x11220 + +/* INTERNAL PHY CONTROL */ +#define NGBE_INTERNAL_PHY_PAGE_SELECT_OFFSET 31 +#define NGBE_INTERNAL_PHY_OFFSET_MAX 32 +#define NGBE_INTERNAL_PHY_ID 0x000732 + +#define NGBE_INTPHY_LED0 0x0010 +#define NGBE_INTPHY_LED1 0x0040 +#define NGBE_INTPHY_LED2 0x2000 + +#define NGBE_INTPHY_INT_LSC 0x0010 +#define NGBE_INTPHY_INT_ANC 0x0008 + +/* PHY MDI STANDARD CONFIG */ +#define NGBE_MDI_PHY_ID1_OFFSET 2 +#define NGBE_MDI_PHY_ID2_OFFSET 3 +#define NGBE_MDI_PHY_ID_MASK 0xFFFFFC00U +#define NGBE_MDI_PHY_SPEED_SELECT1 0x0040 +#define NGBE_MDI_PHY_DUPLEX 0x0100 +#define NGBE_MDI_PHY_RESTART_AN 0x0200 +#define NGBE_MDI_PHY_ANE 0x1000 +#define NGBE_MDI_PHY_SPEED_SELECT0 0x2000 +#define NGBE_MDI_PHY_RESET 0x8000 + +#define NGBE_PHY_RST_WAIT_PERIOD 5 + +#define NGBE_M88E1512_PHY_ID 0x005043 +/* reg 18_0 */ +#define NGBE_M88E1512_INT_LSC 0x0400 +#define NGBE_M88E1512_INT_ANC 0x0800 +/* reg 18_3 */ +#define NGBE_M88E1512_INT_EN 0x0080 +#define NGBE_M88E1512_INT_POL 0x0800 + +/* reg 21_2 */ +#define NGBE_M88E1512_RGM_TTC 0x0010 +#define NGBE_M88E1512_RGM_RTC 0x0020 + +/* LED control */ +#define NGBE_M88E1512_LED1_CONF 0x6 +#define NGBE_M88E1512_LED0_CONF 0x1 + +/* LED polarity */ +#define NGBE_M88E1512_LED1_POL 0x1 +#define NGBE_M88E1512_LED0_POL 0x1 + +/* reg 4_0 ADV REG*/ +#define NGBE_M88E1512_10BASET_HALF 0x0020 +#define NGBE_M88E1512_10BASET_FULL 0x0040 +#define NGBE_M88E1512_100BASET_HALF 0x0080 +#define NGBE_M88E1512_100BASET_FULL 0x0100 + +/* reg 9_0 ADV REG*/ +#define NGBE_M88E1512_1000BASET_HALF 0x0100 +#define NGBE_M88E1512_1000BASET_FULL 0x0200 + +/* reg 19_0 INT status*/ +#define NGBE_M88E1512_ANC 0x0800 +#define NGBE_M88E1512_LSC 0x0400 + +/* yt8521s reg */ +#define NGBE_YT8521S_PHY_ID 0x011a + +#define NGBE_YT8521S_SDS_LINK_UP 0x4 +#define NGBE_YT8521S_SDS_LINK_DOWN 0x8 + +/* 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 NGBE_SR_XS_PCS_MMD_STATUS1 0x30001 +#define NGBE_SR_PCS_CTL2 0x30007 +#define NGBE_SR_PMA_MMD_CTL1 0x10000 +#define NGBE_SR_MII_MMD_CTL 0x1F0000 +#define NGBE_SR_MII_MMD_DIGI_CTL 0x1F8000 +#define NGBE_SR_MII_MMD_AN_CTL 0x1F8001 +#define NGBE_SR_MII_MMD_AN_ADV 0x1F0004 +#define NGBE_SR_MII_MMD_AN_ADV_PAUSE(_v) ((0x3 & (_v)) << 7) +#define NGBE_SR_MII_MMD_LP_BABL 0x1F0005 +#define NGBE_SR_AN_MMD_CTL 0x70000 +#define NGBE_SR_AN_MMD_ADV_REG1 0x70010 +#define NGBE_SR_AN_MMD_ADV_REG1_PAUSE(_v) ((0x3 & (_v)) << 10) +#define NGBE_SR_AN_MMD_ADV_REG1_PAUSE_SYM 0x400 +#define NGBE_SR_AN_MMD_ADV_REG1_PAUSE_ASM 0x800 +#define NGBE_SR_AN_MMD_ADV_REG2 0x70011 +#define NGBE_SR_AN_MMD_LP_ABL1 0x70013 +#define NGBE_VR_AN_KR_MODE_CL 0x78003 +#define NGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1 0x38000 +#define NGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS 0x38010 + +#define NGBE_PHY_MPLLA_CTL0 0x18071 +#define NGBE_PHY_MPLLA_CTL3 0x18077 +#define NGBE_PHY_MISC_CTL0 0x18090 +#define NGBE_PHY_VCO_CAL_LD0 0x18092 +#define NGBE_PHY_VCO_CAL_LD1 0x18093 +#define NGBE_PHY_VCO_CAL_LD2 0x18094 +#define NGBE_PHY_VCO_CAL_LD3 0x18095 +#define NGBE_PHY_VCO_CAL_REF0 0x18096 +#define NGBE_PHY_VCO_CAL_REF1 0x18097 +#define NGBE_PHY_RX_AD_ACK 0x18098 +#define NGBE_PHY_AFE_DFE_ENABLE 0x1805D +#define NGBE_PHY_DFE_TAP_CTL0 0x1805E +#define NGBE_PHY_RX_EQ_ATT_LVL0 0x18057 +#define NGBE_PHY_RX_EQ_CTL0 0x18058 +#define NGBE_PHY_RX_EQ_CTL 0x1805C +#define NGBE_PHY_TX_EQ_CTL0 0x18036 +#define NGBE_PHY_TX_EQ_CTL1 0x18037 +#define NGBE_PHY_TX_RATE_CTL 0x18034 +#define NGBE_PHY_RX_RATE_CTL 0x18054 +#define NGBE_PHY_TX_GEN_CTL2 0x18032 +#define NGBE_PHY_RX_GEN_CTL2 0x18052 +#define NGBE_PHY_RX_GEN_CTL3 0x18053 +#define NGBE_PHY_MPLLA_CTL2 0x18073 +#define NGBE_PHY_RX_POWER_ST_CTL 0x18055 +#define NGBE_PHY_TX_POWER_ST_CTL 0x18035 +#define NGBE_PHY_TX_GENCTRL1 0x18031 + +#define NGBE_SR_PCS_CTL2_PCS_TYPE_SEL_R 0x0 +#define NGBE_SR_PCS_CTL2_PCS_TYPE_SEL_X 0x1 +#define NGBE_SR_PCS_CTL2_PCS_TYPE_SEL_MASK 0x3 +#define NGBE_SR_PMA_MMD_CTL1_SPEED_SEL_1G 0x0 +#define NGBE_SR_PMA_MMD_CTL1_SPEED_SEL_MASK 0x2000 +#define NGBE_SR_PMA_MMD_CTL1_LB_EN 0x1 +#define NGBE_SR_MII_MMD_CTL_AN_EN 0x1000 +#define NGBE_SR_MII_MMD_CTL_RESTART_AN 0x0200 +#define NGBE_SR_AN_MMD_CTL_RESTART_AN 0x0200 +#define NGBE_SR_AN_MMD_CTL_ENABLE 0x1000 +#define NGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KX4 0x40 +#define NGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KX 0x20 +#define NGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_KR 0x80 +#define NGBE_SR_AN_MMD_ADV_REG2_BP_TYPE_MASK 0xFFFF +#define NGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_ENABLE 0x1000 +#define NGBE_VR_XS_OR_PCS_MMD_DIGI_CTL1_VR_RST 0x8000 +#define NGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_MASK 0x1C +#define NGBE_VR_XS_OR_PCS_MMD_DIGI_STATUS_PSEQ_POWER_GOOD 0x10 + +#define NGBE_PHY_MPLLA_CTL0_MULTIPLIER_1GBASEX_KX 32 +#define NGBE_PHY_MPLLA_CTL0_MULTIPLIER_OTHER 40 +#define NGBE_PHY_MPLLA_CTL0_MULTIPLIER_MASK 0xFF +#define NGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_1GBASEX_KX 0x46 +#define NGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_OTHER 0x56 +#define NGBE_PHY_MPLLA_CTL3_MULTIPLIER_BW_MASK 0x7FF +#define NGBE_PHY_MISC_CTL0_TX2RX_LB_EN_0 0x1 +#define NGBE_PHY_MISC_CTL0_TX2RX_LB_EN_3_1 0xE +#define NGBE_PHY_MISC_CTL0_RX_VREF_CTRL 0x1F00 +#define NGBE_PHY_VCO_CAL_LD0_1GBASEX_KX 1344 +#define NGBE_PHY_VCO_CAL_LD0_OTHER 1360 +#define NGBE_PHY_VCO_CAL_LD0_MASK 0x1000 +#define NGBE_PHY_VCO_CAL_REF0_LD0_1GBASEX_KX 42 +#define NGBE_PHY_VCO_CAL_REF0_LD0_OTHER 34 +#define NGBE_PHY_VCO_CAL_REF0_LD0_MASK 0x3F +#define NGBE_PHY_AFE_DFE_ENABLE_DFE_EN0 0x10 +#define NGBE_PHY_AFE_DFE_ENABLE_AFE_EN0 0x1 +#define NGBE_PHY_AFE_DFE_ENABLE_MASK 0xFF +#define NGBE_PHY_RX_EQ_CTL_CONT_ADAPT0 0x1 +#define NGBE_PHY_RX_EQ_CTL_CONT_ADAPT_MASK 0xF +#define NGBE_PHY_TX_RATE_CTL_TX0_RATE_RXAUI 0x1 +#define NGBE_PHY_TX_RATE_CTL_TX0_RATE_1GBASEX_KX 0x3 +#define NGBE_PHY_TX_RATE_CTL_TX0_RATE_OTHER 0x2 +#define NGBE_PHY_TX_RATE_CTL_TX1_RATE_OTHER 0x20 +#define NGBE_PHY_TX_RATE_CTL_TX2_RATE_OTHER 0x200 +#define NGBE_PHY_TX_RATE_CTL_TX3_RATE_OTHER 0x2000 +#define NGBE_PHY_TX_RATE_CTL_TX0_RATE_MASK 0x7 +#define NGBE_PHY_TX_RATE_CTL_TX1_RATE_MASK 0x70 +#define NGBE_PHY_TX_RATE_CTL_TX2_RATE_MASK 0x700 +#define NGBE_PHY_TX_RATE_CTL_TX3_RATE_MASK 0x7000 +#define NGBE_PHY_RX_RATE_CTL_RX0_RATE_RXAUI 0x1 +#define NGBE_PHY_RX_RATE_CTL_RX0_RATE_1GBASEX_KX 0x3 +#define NGBE_PHY_RX_RATE_CTL_RX0_RATE_OTHER 0x2 +#define NGBE_PHY_RX_RATE_CTL_RX1_RATE_OTHER 0x20 +#define NGBE_PHY_RX_RATE_CTL_RX2_RATE_OTHER 0x200 +#define NGBE_PHY_RX_RATE_CTL_RX3_RATE_OTHER 0x2000 +#define NGBE_PHY_RX_RATE_CTL_RX0_RATE_MASK 0x7 +#define NGBE_PHY_RX_RATE_CTL_RX1_RATE_MASK 0x70 +#define NGBE_PHY_RX_RATE_CTL_RX2_RATE_MASK 0x700 +#define NGBE_PHY_RX_RATE_CTL_RX3_RATE_MASK 0x7000 +#define NGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_OTHER 0x100 +#define NGBE_PHY_TX_GEN_CTL2_TX0_WIDTH_MASK 0x300 +#define NGBE_PHY_TX_GEN_CTL2_TX1_WIDTH_OTHER 0x400 +#define NGBE_PHY_TX_GEN_CTL2_TX1_WIDTH_MASK 0xC00 +#define NGBE_PHY_TX_GEN_CTL2_TX2_WIDTH_OTHER 0x1000 +#define NGBE_PHY_TX_GEN_CTL2_TX2_WIDTH_MASK 0x3000 +#define NGBE_PHY_TX_GEN_CTL2_TX3_WIDTH_OTHER 0x4000 +#define NGBE_PHY_TX_GEN_CTL2_TX3_WIDTH_MASK 0xC000 +#define NGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_OTHER 0x100 +#define NGBE_PHY_RX_GEN_CTL2_RX0_WIDTH_MASK 0x300 +#define NGBE_PHY_RX_GEN_CTL2_RX1_WIDTH_OTHER 0x400 +#define NGBE_PHY_RX_GEN_CTL2_RX1_WIDTH_MASK 0xC00 +#define NGBE_PHY_RX_GEN_CTL2_RX2_WIDTH_OTHER 0x1000 +#define NGBE_PHY_RX_GEN_CTL2_RX2_WIDTH_MASK 0x3000 +#define NGBE_PHY_RX_GEN_CTL2_RX3_WIDTH_OTHER 0x4000 +#define NGBE_PHY_RX_GEN_CTL2_RX3_WIDTH_MASK 0xC000 + +#define NGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_8 0x100 +#define NGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_10 0x200 +#define NGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_16P5 0x400 +#define NGBE_PHY_MPLLA_CTL2_DIV_CLK_EN_MASK 0x700 + +#define NGBE_XPCS_POWER_GOOD_MAX_POLLING_TIME 100 +#define NGBE_PHY_INIT_DONE_POLLING_TIME 100 + +/**************** Global Registers ****************************/ +/* chip control Registers */ +#define NGBE_MIS_RST 0x1000C +#define NGBE_MIS_PWR 0x10000 +#define NGBE_MIS_CTL 0x10004 +#define NGBE_MIS_PF_SM 0x10008 +#define NGBE_MIS_ST 0x10028 +#define NGBE_MIS_SWSM 0x1002C +#define NGBE_MIS_RST_ST 0x10030 + +#define NGBE_MIS_RST_SW_RST 0x00000001U +#define NGBE_MIS_RST_LAN0_RST 0x00000002U +#define NGBE_MIS_RST_LAN1_RST 0x00000004U +#define NGBE_MIS_RST_LAN2_RST 0x00000008U +#define NGBE_MIS_RST_LAN3_RST 0x00000010U +#define NGBE_MIS_RST_FW_RST 0x00000020U + +#define NGBE_MIS_RST_LAN0_CHG_ETH_MODE 0x20000000U +#define NGBE_MIS_RST_LAN1_CHG_ETH_MODE 0x40000000U +#define NGBE_MIS_RST_GLOBAL_RST 0x80000000U + +#define NGBE_MIS_PWR_LAN_ID(_r) ((0xF0000000U & (_r)) >> 28) +#define NGBE_MIS_PWR_LAN_ID_0 (1) +#define NGBE_MIS_PWR_LAN_ID_1 (2) +#define NGBE_MIS_PWR_LAN_ID_2 (3) +#define NGBE_MIS_PWR_LAN_ID_3 (4) + +#define NGBE_MIS_ST_MNG_INIT_DN 0x00000001U +#define NGBE_MIS_ST_MNG_VETO 0x00000100U +#define NGBE_MIS_ST_LAN0_ECC 0x00010000U +#define NGBE_MIS_ST_LAN1_ECC 0x00020000U +#define NGBE_MIS_ST_LAN2_ECC 0x00040000U +#define NGBE_MIS_ST_LAN3_ECC 0x00080000U +#define NGBE_MIS_ST_MNG_ECC 0x00100000U +#define NGBE_MIS_ST_PCORE_ECC 0x00200000U +#define NGBE_MIS_ST_PCIWRP_ECC 0x00400000U +#define NGBE_MIS_ST_PCIEPHY_ECC 0x00800000U +#define NGBE_MIS_ST_FMGR_ECC 0x01000000U +#define NGBE_MIS_ST_GPHY_IN_RST(_r) (0x00000200U << (_r)) + +#define NGBE_MIS_SWSM_SMBI 1 +#define NGBE_MIS_RST_ST_DEV_RST_ST_DONE 0x00000000U +#define NGBE_MIS_RST_ST_DEV_RST_ST_REQ 0x00080000U +#define NGBE_MIS_RST_ST_DEV_RST_ST_INPROGRESS 0x00100000U +#define NGBE_MIS_RST_ST_DEV_RST_ST_MASK 0x00180000U +#define NGBE_MIS_RST_ST_DEV_RST_TYPE_MASK 0x00070000U +#define NGBE_MIS_RST_ST_DEV_RST_TYPE_SHIFT 16 +#define NGBE_MIS_RST_ST_DEV_RST_TYPE_SW_RST 0x3 +#define NGBE_MIS_RST_ST_DEV_RST_TYPE_GLOBAL_RST 0x5 +#define NGBE_MIS_RST_ST_RST_INIT 0x0000FF00U +#define NGBE_MIS_RST_ST_RST_INI_SHIFT 8 +#define NGBE_MIS_RST_ST_RST_TIM 0x000000FFU +#define NGBE_MIS_PF_SM_SM 1 + +/* Sensors for PVT(Process Voltage Temperature) */ +#define NGBE_TS_CTL 0x10300 +#define NGBE_TS_EN 0x10304 +#define NGBE_TS_ST 0x10308 +#define NGBE_TS_ALARM_THRE 0x1030C +#define NGBE_TS_DALARM_THRE 0x10310 +#define NGBE_TS_INT_EN 0x10314 +#define NGBE_TS_ALARM_ST 0x10318 +#define NGBE_TS_ALARM_ST_DALARM 0x00000002U +#define NGBE_TS_ALARM_ST_ALARM 0x00000001U + +#define NGBE_EFUSE_WDATA0 0x10320 +#define NGBE_EFUSE_WDATA1 0x10324 +#define NGBE_EFUSE_RDATA0 0x10328 +#define NGBE_EFUSE_RDATA1 0x1032C +#define NGBE_EFUSE_STATUS 0x10330 + +#define NGBE_TS_CTL_CALI_DONE 0x80000000U +#define NGBE_TS_EN_ENA 0x00000001U +#define NGBE_TS_ST_DATA_OUT_MASK 0x000003FFU +#define NGBE_TS_ALARM_THRE_MASK 0x000003FFU +#define NGBE_TS_DALARM_THRE_MASK 0x000003FFU +#define NGBE_TS_INT_EN_DALARM_INT_EN 0x00000002U +#define NGBE_TS_INT_EN_ALARM_INT_EN 0x00000001U + +struct ngbe_thermal_diode_data { + s16 temp; + s16 alarm_thresh; + s16 dalarm_thresh; +}; + +struct ngbe_thermal_sensor_data { + struct ngbe_thermal_diode_data sensor; +}; + +/* FMGR Registers */ +#define NGBE_SPI_ILDR_STATUS 0x10120 +#define NGBE_SPI_ILDR_STATUS_PERST 0x00000001U /* PCIE_PERST is done */ +#define NGBE_SPI_ILDR_STATUS_PWRRST 0x00000002U /* Power on reset done */ +#define NGBE_SPI_ILDR_STATUS_SW_RESET 0x00000800U /* software reset done */ +#define NGBE_SPI_ILDR_STATUS_LAN0_SW_RST 0x00002000U /* lan0 soft reset done */ +#define NGBE_SPI_ILDR_STATUS_LAN1_SW_RST 0x00004000U /* lan1 soft reset done */ +#define NGBE_SPI_ILDR_STATUS_LAN2_SW_RST 0x00008000U /* lan2 soft reset done */ +#define NGBE_SPI_ILDR_STATUS_LAN3_SW_RST 0x00010000U /* lan3 soft reset done */ + +#define NGBE_MAX_FLASH_LOAD_POLL_TIME 10 + +#define NGBE_SPI_CMD 0x10104 +#define NGBE_SPI_CMD_CMD(_v) (((_v) & 0x7) << 28) +#define NGBE_SPI_CMD_CLK(_v) (((_v) & 0x7) << 25) +#define NGBE_SPI_CMD_ADDR(_v) (((_v) & 0x7FFFFF)) + +#define NGBE_SPI_DATA 0x10108 +#define NGBE_SPI_DATA_BYPASS ((0x1) << 31) +#define NGBE_SPI_DATA_STATUS(_v) (((_v) & 0xFF) << 16) +#define NGBE_SPI_DATA_OP_DONE ((0x1)) + +#define NGBE_SPI_STATUS 0x1010C +#define NGBE_SPI_STATUS_OPDONE ((0x1)) +#define NGBE_SPI_STATUS_FLASH_BYPASS ((0x1) << 31) + +#define NGBE_SPI_USR_CMD 0x10110 +#define NGBE_SPI_CMDCFG0 0x10114 +#define NGBE_SPI_CMDCFG1 0x10118 +#define NGBE_SPI_ILDR_SWPTR 0x10124 + +/************************* Port Registers ************************************/ + +/* port cfg Registers */ +#define NGBE_CFG_PORT_CTL 0x14400 +#define NGBE_CFG_PORT_ST 0x14404 +#define NGBE_CFG_EX_VTYPE 0x14408 +#define NGBE_CFG_LED_CTL 0x14424 + +/* internal phy reg_offset [0,31] */ +#define NGBE_PHY_CONFIG(reg_offset) (0x14000 + ((reg_offset) * 4)) + +#define NGBE_CFG_TCP_TIME 0x14420 +#define NGBE_CFG_TAG_TPID(_i) (0x14430 + ((_i) * 4)) /* [0,3] */ +#define NGBE_CFG_LAN_SPEED 0x14440 + +/* port cfg bit */ +#define NGBE_CFG_PORT_CTL_PFRSTD 0x00004000U /* Phy Function Reset Done */ +#define NGBE_CFG_PORT_CTL_D_VLAN 0x00000001U /* double vlan*/ +#define NGBE_CFG_PORT_CTL_ETAG_ETYPE_VLD 0x00000002U +#define NGBE_CFG_PORT_CTL_QINQ 0x00000004U +#define NGBE_CFG_PORT_CTL_DRV_LOAD 0x00000008U +#define NGBE_CFG_PORT_CTL_NUM_VT_MASK 0x00001000U /* number of TVs */ +#define NGBE_CFG_PORT_CTL_NUM_VT_NONE 0x00000000U +#define NGBE_CFG_PORT_CTL_NUM_VT_8 0x00001000U +/* Status Bit */ +#define NGBE_CFG_PORT_ST_LINK_1000M 0x00000002U +#define NGBE_CFG_PORT_ST_LINK_100M 0x00000004U +#define NGBE_CFG_PORT_ST_LINK_10M 0x00000008U +#define NGBE_CFG_PORT_ST_LAN_ID(_r) ((0x00000300U & (_r)) >> 8) +#define NGBE_LINK_UP_TIME 90 + +/* LED CTL Bit */ + +#define NGBE_CFG_LED_CTL_LINK_10M_SEL 0x00000008U +#define NGBE_CFG_LED_CTL_LINK_100M_SEL 0x00000004U +#define NGBE_CFG_LED_CTL_LINK_1G_SEL 0x00000002U +#define NGBE_CFG_LED_CTL_LINK_OD_SHIFT 16 +/* LED modes */ +#define NGBE_LED_LINK_10M NGBE_CFG_LED_CTL_LINK_10M_SEL +#define NGBE_LED_LINK_1G NGBE_CFG_LED_CTL_LINK_1G_SEL +#define NGBE_LED_LINK_100M NGBE_CFG_LED_CTL_LINK_100M_SEL + +/* GPIO Registers */ +#define NGBE_GPIO_DR 0x14800 +#define NGBE_GPIO_DDR 0x14804 +#define NGBE_GPIO_CTL 0x14808 +#define NGBE_GPIO_INTEN 0x14830 +#define NGBE_GPIO_INTMASK 0x14834 +#define NGBE_GPIO_INTTYPE_LEVEL 0x14838 +#define NGBE_GPIO_POLARITY 0x1483C +#define NGBE_GPIO_INTSTATUS 0x14840 +#define NGBE_GPIO_EOI 0x1484C +/*GPIO bit */ +#define NGBE_GPIO_DR_0 0x00000001U /* SDP0 Data Value */ +#define NGBE_GPIO_DR_1 0x00000002U /* SDP1 Data Value */ +#define NGBE_GPIO_DDR_0 0x00000001U /* SDP0 IO direction */ +#define NGBE_GPIO_DDR_1 0x00000002U /* SDP1 IO direction */ +#define NGBE_GPIO_CTL_SW_MODE 0x00000000U /* SDP software mode */ +#define NGBE_GPIO_INTEN_1 0x00000002U /* SDP1 interrupt enable */ +#define NGBE_GPIO_INTEN_2 0x00000004U /* SDP2 interrupt enable */ +#define NGBE_GPIO_INTEN_3 0x00000008U /* SDP3 interrupt enable */ +#define NGBE_GPIO_INTEN_5 0x00000020U /* SDP5 interrupt enable */ +#define NGBE_GPIO_INTEN_6 0x00000040U /* SDP6 interrupt enable */ +#define NGBE_GPIO_INTTYPE_LEVEL_2 0x00000004U /* SDP2 interrupt type level */ +#define NGBE_GPIO_INTTYPE_LEVEL_3 0x00000008U /* SDP3 interrupt type level */ +#define NGBE_GPIO_INTTYPE_LEVEL_5 0x00000020U /* SDP5 interrupt type level */ +#define NGBE_GPIO_INTTYPE_LEVEL_6 0x00000040U /* SDP6 interrupt type level */ +#define NGBE_GPIO_INTSTATUS_1 0x00000002U /* SDP1 interrupt status */ +#define NGBE_GPIO_INTSTATUS_2 0x00000004U /* SDP2 interrupt status */ +#define NGBE_GPIO_INTSTATUS_3 0x00000008U /* SDP3 interrupt status */ +#define NGBE_GPIO_INTSTATUS_5 0x00000020U /* SDP5 interrupt status */ +#define NGBE_GPIO_INTSTATUS_6 0x00000040U /* SDP6 interrupt status */ +#define NGBE_GPIO_EOI_2 0x00000004U /* SDP2 interrupt clear */ +#define NGBE_GPIO_EOI_3 0x00000008U /* SDP3 interrupt clear */ +#define NGBE_GPIO_EOI_5 0x00000020U /* SDP5 interrupt clear */ +#define NGBE_GPIO_EOI_6 0x00000040U /* SDP6 interrupt clear */ + +/* TPH registers */ +#define NGBE_CFG_TPH_TDESC 0x14F00 /* TPH conf for Tx desc write back */ +#define NGBE_CFG_TPH_RDESC 0x14F04 /* TPH conf for Rx desc write back */ +#define NGBE_CFG_TPH_RHDR 0x14F08 /* TPH conf for writing Rx pkt header */ +#define NGBE_CFG_TPH_RPL 0x14F0C /* TPH conf for payload write access */ +/* TPH bit */ +#define NGBE_CFG_TPH_TDESC_EN 0x80000000U +#define NGBE_CFG_TPH_TDESC_PH_SHIFT 29 +#define NGBE_CFG_TPH_TDESC_ST_SHIFT 16 +#define NGBE_CFG_TPH_RDESC_EN 0x80000000U +#define NGBE_CFG_TPH_RDESC_PH_SHIFT 29 +#define NGBE_CFG_TPH_RDESC_ST_SHIFT 16 +#define NGBE_CFG_TPH_RHDR_EN 0x00008000U +#define NGBE_CFG_TPH_RHDR_PH_SHIFT 13 +#define NGBE_CFG_TPH_RHDR_ST_SHIFT 0 +#define NGBE_CFG_TPH_RPL_EN 0x80000000U +#define NGBE_CFG_TPH_RPL_PH_SHIFT 29 +#define NGBE_CFG_TPH_RPL_ST_SHIFT 16 + +/*********************** Transmit DMA registers **************************/ +/* transmit global control */ +#define NGBE_TDM_CTL 0x18000 +#define NGBE_TDM_POOL_TE 0x18004 +#define NGBE_TDM_PB_THRE 0x18020 + +#define NGBE_TDM_LLQ 0x18040 +#define NGBE_TDM_ETYPE_LB_L 0x18050 + +#define NGBE_TDM_ETYPE_AS_L 0x18058 +#define NGBE_TDM_MAC_AS_L 0x18060 + +#define NGBE_TDM_VLAN_AS_L 0x18070 + +#define NGBE_TDM_TCP_FLG_L 0x18078 +#define NGBE_TDM_TCP_FLG_H 0x1807C +#define NGBE_TDM_VLAN_INS(_i) (0x18100 + ((_i) * 4)) /* 8 of these 0 - 7 */ +/* TDM CTL BIT */ +#define NGBE_TDM_CTL_TE 0x1 /* Transmit Enable */ +#define NGBE_TDM_CTL_PADDING 0x2 /* Padding byte number for ipsec ESP */ +#define NGBE_TDM_CTL_VT_SHIFT 16 /* VLAN EtherType */ +/* Per VF Port VLAN insertion rules */ +#define NGBE_TDM_VLAN_INS_VLANA_DEFAULT 0x40000000U /*Always use default VLAN*/ +#define NGBE_TDM_VLAN_INS_VLANA_NEVER 0x80000000U /* Never insert VLAN tag */ + +#define NGBE_TDM_RP_CTL_RST ((0x1) << 0) +#define NGBE_TDM_RP_CTL_RPEN ((0x1) << 2) +#define NGBE_TDM_RP_CTL_RLEN ((0x1) << 3) +#define NGBE_TDM_RP_RATE_MIN(v) ((0x3FFF & (v))) +#define NGBE_TDM_RP_RATE_MAX(v) ((0x3FFF & (v)) << 16) + +/* qos */ +#define NGBE_TDM_PBWARB_CTL 0x18200 +#define NGBE_TDM_VM_CREDIT_VAL(v) (0x3FF & (v)) + +/* etag */ +#define NGBE_TDM_ETAG_INS(_i) (0x18700 + ((_i) * 4)) /* 8 of these 0 - 7 */ +/* statistic */ +#define NGBE_TDM_DRP_CNT 0x18300 +#define NGBE_TDM_SEC_DRP 0x18304 +#define NGBE_TDM_PKT_CNT 0x18308 +#define NGBE_TDM_BYTE_CNT_L 0x1830C +#define NGBE_TDM_BYTE_CNT_H 0x18310 +#define NGBE_TDM_OS2BMC_CNT 0x18314 + +/**************************** Receive DMA registers **************************/ +/* receive control */ +#define NGBE_RDM_ARB_CTL 0x12000 +#define NGBE_RDM_POOL_RE 0x12004 + +#define NGBE_RDM_PF_QDE 0x12080 +#define NGBE_RDM_PF_HIDE 0x12090 +/* VFRE bitmask */ +#define NGBE_RDM_POOL_RE_ENABLE_ALL 0xFFFFFFFFU + +/* statistic */ +#define NGBE_RDM_DRP_PKT 0x12500 +#define NGBE_RDM_PKT_CNT 0x12504 +#define NGBE_RDM_BYTE_CNT_L 0x12508 +#define NGBE_RDM_BYTE_CNT_H 0x1250C +#define NGBE_RDM_BMC2OS_CNT 0x12510 + +/***************************** RDB registers *********************************/ +/* Flow Control Registers */ +#define NGBE_RDB_RFCV 0x19200 +#define NGBE_RDB_RFCL 0x19220 +#define NGBE_RDB_RFCH 0x19260 +#define NGBE_RDB_RFCRT 0x192A0 +#define NGBE_RDB_RFCC 0x192A4 +/* receive packet buffer */ +#define NGBE_RDB_PB_WRAP 0x19004 +#define NGBE_RDB_PB_SZ 0x19020 + +#define NGBE_RDB_PB_CTL 0x19000 +#define NGBE_RDB_PB_SZ_SHIFT 10 +#define NGBE_RDB_PB_SZ_MASK 0x000FFC00U +/* lli interrupt */ +#define NGBE_RDB_LLI_THRE 0x19080 +#define NGBE_RDB_LLI_THRE_SZ(_v) ((0xFFF & (_v))) +#define NGBE_RDB_LLI_THRE_UP(_v) ((0x7 & (_v)) << 16) +#define NGBE_RDB_LLI_THRE_UP_SHIFT 16 + +/* ring assignment */ +#define NGBE_RDB_PL_CFG(_i) (0x19300 + ((_i) * 4)) /* [0,7] */ +#define NGBE_RDB_RSSTBL(_i) (0x19400 + ((_i) * 4)) /* [0,31] */ +#define NGBE_RDB_RSSRK(_i) (0x19480 + ((_i) * 4)) /* [0,9] */ +#define NGBE_RDB_RA_CTL 0x194F4 +#define NGBE_RDB_5T_SDP(_i) (0x19A00 + ((_i) * 4)) /*Src Dst Addr Q Filter*/ +#define NGBE_RDB_5T_CTL0(_i) (0x19C00 + ((_i) * 4)) /* Five Tuple Q Filter */ +#define NGBE_RDB_ETYPE_CLS(_i) (0x19100 + ((_i) * 4)) /* EType Q Select */ +#define NGBE_RDB_SYN_CLS 0x19130 +#define NGBE_RDB_5T_CTL1(_i) (0x19E00 + ((_i) * 4)) /*8 of these (0-7)*/ +/* VM RSS */ +#define NGBE_RDB_VMRSSRK(_i, _p) (0x1A000 + ((_i) * 4) + ((_p) * 0x40)) +#define NGBE_RDB_VMRSSTBL(_i, _p) (0x1B000 + ((_i) * 4) + ((_p) * 0x40)) +/* statistic */ +#define NGBE_RDB_MPCNT 0x19040 +#define NGBE_RDB_PKT_CNT 0x19060 +#define NGBE_RDB_REPLI_CNT 0x19064 +#define NGBE_RDB_DRP_CNT 0x19068 +#define NGBE_RDB_LXONTXC 0x1921C +#define NGBE_RDB_LXOFFTXC 0x19218 +#define NGBE_RDB_PFCMACDAL 0x19210 +#define NGBE_RDB_PFCMACDAH 0x19214 +#define NGBE_RDB_TXSWERR 0x1906C +#define NGBE_RDB_TXSWERR_TB_FREE 0x3FF +/* rdb_pl_cfg reg mask */ +#define NGBE_RDB_PL_CFG_L4HDR 0x2 +#define NGBE_RDB_PL_CFG_L3HDR 0x4 +#define NGBE_RDB_PL_CFG_L2HDR 0x8 +#define NGBE_RDB_PL_CFG_TUN_OUTER_L2HDR 0x20 +#define NGBE_RDB_PL_CFG_TUN_TUNHDR 0x10 +/* RQTC Bit Masks and Shifts */ +#define NGBE_RDB_RSS_TC_SHIFT_TC(_i) ((_i) * 4) +#define NGBE_RDB_RSS_TC_TC0_MASK (0x7 << 0) +#define NGBE_RDB_RSS_TC_TC1_MASK (0x7 << 4) +#define NGBE_RDB_RSS_TC_TC2_MASK (0x7 << 8) +#define NGBE_RDB_RSS_TC_TC3_MASK (0x7 << 12) +#define NGBE_RDB_RSS_TC_TC4_MASK (0x7 << 16) +#define NGBE_RDB_RSS_TC_TC5_MASK (0x7 << 20) +#define NGBE_RDB_RSS_TC_TC6_MASK (0x7 << 24) +#define NGBE_RDB_RSS_TC_TC7_MASK (0x7 << 28) +/* Packet Buffer Initialization */ +#define NGBE_MAX_PACKET_BUFFERS 8 +#define NGBE_RDB_PB_SZ_48KB 0x00000030U /* 48KB Packet Buffer */ +#define NGBE_RDB_PB_SZ_64KB 0x00000040U /* 64KB Packet Buffer */ +#define NGBE_RDB_PB_SZ_80KB 0x00000050U /* 80KB Packet Buffer */ +#define NGBE_RDB_PB_SZ_128KB 0x00000080U /* 128KB Packet Buffer */ +#define NGBE_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 NGBE_RDB_RFCL_XONE 0x80000000U /* XON enable */ +#define NGBE_RDB_RFCH_XOFFE 0x80000000U /* Packet buffer fc enable */ +/* FCCFG Bit Masks */ +#define NGBE_RDB_RFCC_RFCE_802_3X 0x00000008U /* Tx link FC enable */ + +/* Immediate Interrupt Rx (A.K.A. Low Latency Interrupt) */ +#define NGBE_RDB_5T_CTL1_SIZE_BP 0x00001000U /* Packet size bypass */ +#define NGBE_RDB_5T_CTL1_LLI 0x00100000U /* Enables low latency Int */ +#define NGBE_RDB_LLI_THRE_PRIORITY_MASK 0x00070000U /* VLAN priority mask */ +#define NGBE_RDB_LLI_THRE_PRIORITY_EN 0x00080000U /* VLAN priority enable */ + +#define NGBE_MAX_RDB_5T_CTL0_FILTERS 128 +#define NGBE_RDB_5T_CTL0_PROTOCOL_MASK 0x00000003U +#define NGBE_RDB_5T_CTL0_PROTOCOL_TCP 0x00000000U +#define NGBE_RDB_5T_CTL0_PROTOCOL_UDP 0x00000001U +#define NGBE_RDB_5T_CTL0_PROTOCOL_SCTP 2 +#define NGBE_RDB_5T_CTL0_PRIORITY_MASK 0x00000007U +#define NGBE_RDB_5T_CTL0_PRIORITY_SHIFT 2 +#define NGBE_RDB_5T_CTL0_POOL_MASK 0x0000003FU +#define NGBE_RDB_5T_CTL0_POOL_SHIFT 8 +#define NGBE_RDB_5T_CTL0_5TUPLE_MASK_MASK 0x00000007U +#define NGBE_RDB_5T_CTL0_5TUPLE_MASK_SHIFT 27 +#define NGBE_RDB_5T_CTL0_SOURCE_PORT_MASK 0x1B +#define NGBE_RDB_5T_CTL0_DEST_PORT_MASK 0x05 +#define NGBE_RDB_5T_CTL0_PROTOCOL_COMP_MASK 0x0F +#define NGBE_RDB_5T_CTL0_POOL_MASK_EN 0x40000000U +#define NGBE_RDB_5T_CTL0_QUEUE_ENABLE 0x80000000U + +#define NGBE_RDB_ETYPE_CLS_RX_QUEUE 0x007F0000U /* bits 22:16 */ +#define NGBE_RDB_ETYPE_CLS_RX_QUEUE_SHIFT 16 +#define NGBE_RDB_ETYPE_CLS_LLI 0x20000000U /* bit 29 */ +#define NGBE_RDB_ETYPE_CLS_QUEUE_EN 0x80000000U /* bit 31 */ + +/* Receive Config masks */ +#define NGBE_RDB_PB_CTL_PBEN (0x80000000) /* Enable Receiver */ +#define NGBE_RDB_PB_CTL_DISABLED 0x1 + +#define NGBE_RDB_RA_CTL_RSS_EN 0x00000004U /* RSS Enable */ +#define NGBE_RDB_RA_CTL_RSS_MASK 0xFFFF0000U +#define NGBE_RDB_RA_CTL_RSS_IPV4_TCP 0x00010000U +#define NGBE_RDB_RA_CTL_RSS_IPV4 0x00020000U +#define NGBE_RDB_RA_CTL_RSS_IPV6 0x00100000U +#define NGBE_RDB_RA_CTL_RSS_IPV6_TCP 0x00200000U +#define NGBE_RDB_RA_CTL_RSS_IPV4_UDP 0x00400000U +#define NGBE_RDB_RA_CTL_RSS_IPV6_UDP 0x00800000U + +/******************************* PSR Registers *******************************/ +/* psr control */ +#define NGBE_PSR_CTL 0x15000 +#define NGBE_PSR_VLAN_CTL 0x15088 +#define NGBE_PSR_VM_CTL 0x151B0 +#define NGBE_PSR_PKT_CNT 0x151B8 +#define NGBE_PSR_MNG_PKT_CNT 0x151BC +#define NGBE_PSR_DBG_DOP_CNT 0x151C0 +#define NGBE_PSR_MNG_DOP_CNT 0x151C4 +#define NGBE_PSR_VM_FLP_L 0x151C8 + +/* Header split receive */ +#define NGBE_PSR_CTL_SW_EN 0x00040000U +#define NGBE_PSR_CTL_PCSD 0x00002000U +#define NGBE_PSR_CTL_IPPCSE 0x00001000U +#define NGBE_PSR_CTL_BAM 0x00000400U +#define NGBE_PSR_CTL_UPE 0x00000200U +#define NGBE_PSR_CTL_MPE 0x00000100U +#define NGBE_PSR_CTL_MFE 0x00000080U +#define NGBE_PSR_CTL_MO 0x00000060U +#define NGBE_PSR_CTL_TPE 0x00000010U +#define NGBE_PSR_CTL_MO_SHIFT 5 +/* VT_CTL bitmasks */ +#define NGBE_PSR_VM_CTL_DIS_DEFPL 0x20000000U /* disable default pool */ +#define NGBE_PSR_VM_CTL_REPLEN 0x40000000U /* replication enabled */ +#define NGBE_PSR_VM_CTL_POOL_SHIFT 7 +#define NGBE_PSR_VM_CTL_POOL_MASK (0x7 << NGBE_PSR_VM_CTL_POOL_SHIFT) +/* VLAN Control Bit Masks */ +#define NGBE_PSR_VLAN_CTL_VET 0x0000FFFFU /* bits 0-15 */ +#define NGBE_PSR_VLAN_CTL_CFI 0x10000000U /* bit 28 */ +#define NGBE_PSR_VLAN_CTL_CFIEN 0x20000000U /* bit 29 */ +#define NGBE_PSR_VLAN_CTL_VFE 0x40000000U /* bit 30 */ + +/* vm L2 contorl */ +#define NGBE_PSR_VM_L2CTL(_i) (0x15600 + ((_i) * 4)) +/* VMOLR bitmasks */ +#define NGBE_PSR_VM_L2CTL_LBDIS 0x00000002U /* disable loopback */ +#define NGBE_PSR_VM_L2CTL_LLB 0x00000004U /* local pool loopback */ +#define NGBE_PSR_VM_L2CTL_UPE 0x00000010U /* unicast promiscuous */ +#define NGBE_PSR_VM_L2CTL_TPE 0x00000020U /* ETAG promiscuous */ +#define NGBE_PSR_VM_L2CTL_VACC 0x00000040U /* accept nomatched vlan */ +#define NGBE_PSR_VM_L2CTL_VPE 0x00000080U /* vlan promiscuous mode */ +#define NGBE_PSR_VM_L2CTL_AUPE 0x00000100U /* accept untagged packets */ +#define NGBE_PSR_VM_L2CTL_ROMPE 0x00000200U /*accept packets in MTA tbl*/ +#define NGBE_PSR_VM_L2CTL_ROPE 0x00000400U /* accept packets in UC tbl*/ +#define NGBE_PSR_VM_L2CTL_BAM 0x00000800U /* accept broadcast packets*/ +#define NGBE_PSR_VM_L2CTL_MPE 0x00001000U /* multicast promiscuous */ + +/* etype switcher 1st stage */ +#define NGBE_PSR_ETYPE_SWC(_i) (0x15128 + ((_i) * 4)) /* EType Queue Filter */ +/* ETYPE Queue Filter/Select Bit Masks */ +#define NGBE_MAX_PSR_ETYPE_SWC_FILTERS 8 +#define NGBE_PSR_ETYPE_SWC_FCOE 0x08000000U /* bit 27 */ +#define NGBE_PSR_ETYPE_SWC_TX_ANTISPOOF 0x20000000U /* bit 29 */ +#define NGBE_PSR_ETYPE_SWC_1588 0x40000000U /* bit 30 */ +#define NGBE_PSR_ETYPE_SWC_FILTER_EN 0x80000000U /* bit 31 */ +#define NGBE_PSR_ETYPE_SWC_POOL_ENABLE (1 << 26) /* bit 26 */ +#define NGBE_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 NGBE_PSR_ETYPE_SWC_FILTER_EAPOL 0 +#define NGBE_PSR_ETYPE_SWC_FILTER_FCOE 2 +#define NGBE_PSR_ETYPE_SWC_FILTER_1588 3 +#define NGBE_PSR_ETYPE_SWC_FILTER_FIP 4 +#define NGBE_PSR_ETYPE_SWC_FILTER_LLDP 5 +#define NGBE_PSR_ETYPE_SWC_FILTER_LACP 6 +#define NGBE_PSR_ETYPE_SWC_FILTER_FC 7 + +/* mcasst/ucast overflow tbl */ +#define NGBE_PSR_MC_TBL(_i) (0x15200 + ((_i) * 4)) +#define NGBE_PSR_UC_TBL(_i) (0x15400 + ((_i) * 4)) + +/* vlan tbl */ +#define NGBE_PSR_VLAN_TBL(_i) (0x16000 + ((_i) * 4)) + +/* mac switcher */ +#define NGBE_PSR_MAC_SWC_AD_L 0x16200 +#define NGBE_PSR_MAC_SWC_AD_H 0x16204 +#define NGBE_PSR_MAC_SWC_VM 0x16208 +#define NGBE_PSR_MAC_SWC_IDX 0x16210 +/* RAH */ +#define NGBE_PSR_MAC_SWC_AD_H_AD(v) (((v) & 0xFFFF)) +#define NGBE_PSR_MAC_SWC_AD_H_ADTYPE(v) (((v) & 0x1) << 30) +#define NGBE_PSR_MAC_SWC_AD_H_AV 0x80000000U +#define NGBE_CLEAR_VMDQ_ALL 0xFFFFFFFFU + +/* vlan switch */ +#define NGBE_PSR_VLAN_SWC 0x16220 +#define NGBE_PSR_VLAN_SWC_VM_L 0x16224 +#define NGBE_PSR_VLAN_SWC_IDX 0x16230 /* 32 vlan entries */ +/* VLAN pool filtering masks */ +#define NGBE_PSR_VLAN_SWC_VIEN 0x80000000U /* filter is valid */ +#define NGBE_PSR_VLAN_SWC_ENTRIES 32 +#define NGBE_PSR_VLAN_SWC_VLANID_MASK 0x00000FFFU +#define NGBE_ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.1q protocol */ + +/* Manangbeent */ +#define NGBE_PSR_MNG_FIT_CTL 0x15820 +/* Manangbeent Bit Fields and Masks */ +#define NGBE_PSR_MNG_FIT_CTL_MPROXYE 0x40000000U /* Manangbeent Proxy Enable*/ +#define NGBE_PSR_MNG_FIT_CTL_RCV_TCO_EN 0x00020000U /* Rcv TCO packet enable */ +#define NGBE_PSR_MNG_FIT_CTL_EN_BMC2OS 0x10000000U /* Ena BMC2OS and OS2BMC + *traffic */ +#define NGBE_PSR_MNG_FIT_CTL_EN_BMC2OS_SHIFT 28 + +#define NGBE_PSR_MNG_FLEX_SEL 0x1582C +#define NGBE_PSR_MNG_FLEX_DW_L(_i) (0x15A00 + ((_i) * 16)) /* [0,15] */ +#define NGBE_PSR_MNG_FLEX_DW_H(_i) (0x15A04 + ((_i) * 16)) +#define NGBE_PSR_MNG_FLEX_MSK(_i) (0x15A08 + ((_i) * 16)) + +/* mirror */ +#define NGBE_PSR_MR_CTL(_i) (0x15B00 + ((_i) * 4)) /* [0,3] */ +#define NGBE_PSR_MR_VLAN_L(_i) (0x15B10 + ((_i) * 8)) +#define NGBE_PSR_MR_VM_L(_i) (0x15B30 + ((_i) * 8)) + +/* 1588 */ +#define NGBE_PSR_1588_CTL 0x15188 /* Rx Time Sync Control register - RW */ +#define NGBE_PSR_1588_STMPL 0x151E8 /* Rx timestamp Low - RO */ +#define NGBE_PSR_1588_STMPH 0x151A4 /* Rx timestamp High - RO */ +#define NGBE_PSR_1588_ATTRL 0x151A0 /* Rx timestamp attribute low - RO */ +#define NGBE_PSR_1588_ATTRH 0x151A8 /* Rx timestamp attribute high - RO */ +#define NGBE_PSR_1588_MSGTYPE 0x15120 /* RX message type register low - RW */ +/* 1588 CTL Bit */ +#define NGBE_PSR_1588_CTL_VALID 0x00000001U /* Rx timestamp valid */ +#define NGBE_PSR_1588_CTL_TYPE_MASK 0x0000000EU /* Rx type mask */ +#define NGBE_PSR_1588_CTL_TYPE_L2_V2 0x00 +#define NGBE_PSR_1588_CTL_TYPE_L4_V1 0x02 +#define NGBE_PSR_1588_CTL_TYPE_L2_L4_V2 0x04 +#define NGBE_PSR_1588_CTL_TYPE_EVENT_V2 0x0A +#define NGBE_PSR_1588_CTL_ENABLED 0x00000010U /* Rx Timestamp enabled*/ +/* 1588 msg type bit */ +#define NGBE_PSR_1588_MSGTYPE_V1_CTRLT_MASK 0x000000FFU +#define NGBE_PSR_1588_MSGTYPE_V1_SYNC_MSG 0x00 +#define NGBE_PSR_1588_MSGTYPE_V1_DELAY_REQ_MSG 0x01 +#define NGBE_PSR_1588_MSGTYPE_V1_FOLLOWUP_MSG 0x02 +#define NGBE_PSR_1588_MSGTYPE_V1_DELAY_RESP_MSG 0x03 +#define NGBE_PSR_1588_MSGTYPE_V1_MGMT_MSG 0x04 +#define NGBE_PSR_1588_MSGTYPE_V2_MSGID_MASK 0x0000FF00U +#define NGBE_PSR_1588_MSGTYPE_V2_SYNC_MSG 0x0000 +#define NGBE_PSR_1588_MSGTYPE_V2_DELAY_REQ_MSG 0x0100 +#define NGBE_PSR_1588_MSGTYPE_V2_PDELAY_REQ_MSG 0x0200 +#define NGBE_PSR_1588_MSGTYPE_V2_PDELAY_RESP_MSG 0x0300 +#define NGBE_PSR_1588_MSGTYPE_V2_FOLLOWUP_MSG 0x0800 +#define NGBE_PSR_1588_MSGTYPE_V2_DELAY_RESP_MSG 0x0900 +#define NGBE_PSR_1588_MSGTYPE_V2_PDELAY_FOLLOWUP_MSG 0x0A00 +#define NGBE_PSR_1588_MSGTYPE_V2_ANNOUNCE_MSG 0x0B00 +#define NGBE_PSR_1588_MSGTYPE_V2_SIGNALLING_MSG 0x0C00 +#define NGBE_PSR_1588_MSGTYPE_V2_MGMT_MSG 0x0D00 + +/* Wake up registers */ +#define NGBE_PSR_WKUP_CTL 0x15B80 +#define NGBE_PSR_WKUP_IPV 0x15B84 +#define NGBE_PSR_LAN_FLEX_SEL 0x15B8C +#define NGBE_PSR_WKUP_IP4TBL(_i) (0x15BC0 + ((_i) * 4)) /* [0,3] */ +#define NGBE_PSR_WKUP_IP6TBL(_i) (0x15BE0 + ((_i) * 4)) +#define NGBE_PSR_LAN_FLEX_DW_L(_i) (0x15C00 + ((_i) * 16)) /* [0,15] */ +#define NGBE_PSR_LAN_FLEX_DW_H(_i) (0x15C04 + ((_i) * 16)) +#define NGBE_PSR_LAN_FLEX_MSK(_i) (0x15C08 + ((_i) * 16)) +#define NGBE_PSR_LAN_FLEX_CTL 0x15CFC +/* Wake Up Filter Control Bit */ +#define NGBE_PSR_WKUP_CTL_LNKC 0x00000001U /* Link Status Change Wakeup Enable*/ +#define NGBE_PSR_WKUP_CTL_MAG 0x00000002U /* Magic Packet Wakeup Enable */ +#define NGBE_PSR_WKUP_CTL_EX 0x00000004U /* Directed Exact Wakeup Enable */ +#define NGBE_PSR_WKUP_CTL_MC 0x00000008U /* Directed Multicast Wakeup Enable*/ +#define NGBE_PSR_WKUP_CTL_BC 0x00000010U /* Broadcast Wakeup Enable */ +#define NGBE_PSR_WKUP_CTL_ARP 0x00000020U /* ARP Request Packet Wakeup Enable*/ +#define NGBE_PSR_WKUP_CTL_IPV4 0x00000040U /* Directed IPv4 Pkt Wakeup Enable */ +#define NGBE_PSR_WKUP_CTL_IPV6 0x00000080U /* Directed IPv6 Pkt Wakeup Enable */ +#define NGBE_PSR_WKUP_CTL_IGNORE_TCO 0x00008000U /* Ignore WakeOn TCO pkts */ +#define NGBE_PSR_WKUP_CTL_FLX0 0x00010000U /* Flexible Filter 0 Ena */ +#define NGBE_PSR_WKUP_CTL_FLX1 0x00020000U /* Flexible Filter 1 Ena */ +#define NGBE_PSR_WKUP_CTL_FLX2 0x00040000U /* Flexible Filter 2 Ena */ +#define NGBE_PSR_WKUP_CTL_FLX3 0x00080000U /* Flexible Filter 3 Ena */ +#define NGBE_PSR_WKUP_CTL_FLX4 0x00100000U /* Flexible Filter 4 Ena */ +#define NGBE_PSR_WKUP_CTL_FLX5 0x00200000U /* Flexible Filter 5 Ena */ +#define NGBE_PSR_WKUP_CTL_FLX_FILTERS 0x000F0000U /* Mask for 4 flex filters */ +#define NGBE_PSR_WKUP_CTL_FLX_FILTERS_6 0x003F0000U /* Mask for 6 flex filters*/ +#define NGBE_PSR_WKUP_CTL_FLX_FILTERS_8 0x00FF0000U /* Mask for 8 flex filters*/ +#define NGBE_PSR_WKUP_CTL_FW_RST_WK 0x80000000U /* Ena wake on FW reset + * assertion */ +/* Mask for Ext. flex filters */ +#define NGBE_PSR_WKUP_CTL_EXT_FLX_FILTERS 0x00300000U +#define NGBE_PSR_WKUP_CTL_ALL_FILTERS 0x000F00FFU /* Mask all 4 flex filters*/ +#define NGBE_PSR_WKUP_CTL_ALL_FILTERS_6 0x003F00FFU /* Mask all 6 flex filters*/ +#define NGBE_PSR_WKUP_CTL_ALL_FILTERS_8 0x00FF00FFU /* Mask all 8 flex filters*/ +#define NGBE_PSR_WKUP_CTL_FLX_OFFSET 16 /* Offset to the Flex Filters bits*/ + +#define NGBE_PSR_MAX_SZ 0x15020 + +/****************************** TDB ******************************************/ +#define NGBE_TDB_RFCS 0x1CE00 +#define NGBE_TDB_PB_SZ 0x1CC00 + +#define NGBE_TDB_PRB_CTL 0x17010 +#define NGBE_TDB_PBRARB_CTL 0x1CD00 + +#define NGBE_TDB_PB_SZ_MAX 0x00005000U /* 20KB Packet Buffer */ +#define NGBE_TXPKT_SIZE_MAX 0xA /* Max Tx Packet size */ +#define NGBE_MAX_PB 8 +/* statistic */ +#define NGBE_TDB_OUT_PKT_CNT 0x1CF00 +#define NGBE_TDB_MNG_PKT_CNT 0x1CF04 +#define NGBE_TDB_LB_PKT_CNT 0x1CF08 +#define NGBE_TDB_MNG_LARGE_DOP_CNT 0x1CF0C + +/****************************** TSEC *****************************************/ +/* Security Control Registers */ +#define NGBE_TSEC_CTL 0x1D000 +#define NGBE_TSEC_ST 0x1D004 +#define NGBE_TSEC_BUF_AF 0x1D008 +#define NGBE_TSEC_BUF_AE 0x1D00C +#define NGBE_TSEC_MIN_IFG 0x1D020 + +/* 1588 */ +#define NGBE_TSEC_1588_CTL 0x11F00 /* Tx Time Sync Control reg */ +#define NGBE_TSEC_1588_STMPL 0x11F04 /* Tx timestamp value Low */ +#define NGBE_TSEC_1588_STMPH 0x11F08 /* Tx timestamp value High */ +#define NGBE_TSEC_1588_SYSTIML 0x11F0C /* System time register Low */ +#define NGBE_TSEC_1588_SYSTIMH 0x11F10 /* System time register High */ +#define NGBE_TSEC_1588_INC 0x11F14 /* Increment attributes reg */ +#define NGBE_TSEC_1588_INC_IV(v) ((v) & 0x7FFFFFF) + +#define NGBE_TSEC_1588_ADJL 0x11F18 /* Time Adjustment Offset reg Low */ +#define NGBE_TSEC_1588_ADJH 0x11F1C /* Time Adjustment Offset reg High*/ + +#define NGBE_TSEC_1588_INT_ST 0x11F20 +#define NGBE_TSEC_1588_INT_EN 0x11F24 + +/* 1588 fields */ +#define NGBE_TSEC_1588_CTL_VALID 0x00000001U /* Tx timestamp valid */ +#define NGBE_TSEC_1588_CTL_ENABLED 0x00000010U /* Tx timestamping enabled */ + +#define NGBE_TSEC_1588_AUX_CTL 0x11F28 +#define NGBE_TSEC_1588_TRGT_L(i) (0x11F2C + ((i) * 8)) /* [0,1] */ +#define NGBE_TSEC_1588_TRGT_H(i) (0x11F30 + ((i) * 8)) /* [0,1] */ +#define NGBE_TSEC_1588_FREQ_CLK_L(i) (0x11F3C + ((i) * 8)) /* [0,1] */ +#define NGBE_TSEC_1588_FREQ_CLK_H(i) (0x11F40 + ((i) * 8)) /* [0,1] */ +#define NGBE_TSEC_1588_AUX_STMP_L(i) (0x11F4C + ((i) * 8)) /* [0,1] */ +#define NGBE_TSEC_1588_AUX_STMP_H(i) (0x11F50 + ((i) * 8)) /* [0,1] */ +#define NGBE_TSEC_1588_SDP(n) (0x11F5C + ((n) * 4)) /* [0,3] */ + +/********************************* RSEC **************************************/ +/* general rsec */ +#define NGBE_RSEC_CTL 0x17000 +#define NGBE_RSEC_ST 0x17004 +/* general rsec fields */ +#define NGBE_RSEC_CTL_SECRX_DIS 0x00000001U +#define NGBE_RSEC_CTL_RX_DIS 0x00000002U +#define NGBE_RSEC_CTL_CRC_STRIP 0x00000004U +#define NGBE_RSEC_CTL_SAVE_MAC_ERR 0x00000040U +#define NGBE_RSEC_ST_RSEC_RDY 0x00000001U +#define NGBE_RSEC_ST_RSEC_OFLD_DIS 0x00000002U +#define NGBE_RSEC_ST_ECC_RXERR 0x00000004U + +/* link sec */ +#define NGBE_RSEC_LSEC_CAP 0x17200 +#define NGBE_RSEC_LSEC_CTL 0x17204 +#define NGBE_RSEC_LSEC_SCI_L 0x17208 +#define NGBE_RSEC_LSEC_SCI_H 0x1720C +#define NGBE_RSEC_LSEC_SA0 0x17210 +#define NGBE_RSEC_LSEC_SA1 0x17214 +#define NGBE_RSEC_LSEC_PKNUM0 0x17218 +#define NGBE_RSEC_LSEC_PKNUM1 0x1721C +#define NGBE_RSEC_LSEC_KEY0(_n) 0x17220 +#define NGBE_RSEC_LSEC_KEY1(_n) 0x17230 +#define NGBE_RSEC_LSEC_UNTAG_PKT 0x17240 +#define NGBE_RSEC_LSEC_DEC_OCTET 0x17244 +#define NGBE_RSEC_LSEC_VLD_OCTET 0x17248 +#define NGBE_RSEC_LSEC_BAD_PKT 0x1724C +#define NGBE_RSEC_LSEC_NOSCI_PKT 0x17250 +#define NGBE_RSEC_LSEC_UNSCI_PKT 0x17254 +#define NGBE_RSEC_LSEC_UNCHK_PKT 0x17258 +#define NGBE_RSEC_LSEC_DLY_PKT 0x1725C +#define NGBE_RSEC_LSEC_LATE_PKT 0x17260 +#define NGBE_RSEC_LSEC_OK_PKT(_n) 0x17264 +#define NGBE_RSEC_LSEC_INV_PKT(_n) 0x17274 +#define NGBE_RSEC_LSEC_BADSA_PKT 0x1727C +#define NGBE_RSEC_LSEC_INVSA_PKT 0x17280 + +/* ipsec */ +#define NGBE_RSEC_IPS_IDX 0x17100 +#define NGBE_RSEC_IPS_IDX_WT 0x80000000U +#define NGBE_RSEC_IPS_IDX_RD 0x40000000U +#define NGBE_RSEC_IPS_IDX_TB_IDX 0x0U /* */ +#define NGBE_RSEC_IPS_IDX_TB_IP 0x00000002U +#define NGBE_RSEC_IPS_IDX_TB_SPI 0x00000004U +#define NGBE_RSEC_IPS_IDX_TB_KEY 0x00000006U +#define NGBE_RSEC_IPS_IDX_EN 0x00000001U +#define NGBE_RSEC_IPS_IP(i) (0x17104 + ((i) * 4)) +#define NGBE_RSEC_IPS_SPI 0x17114 +#define NGBE_RSEC_IPS_IP_IDX 0x17118 +#define NGBE_RSEC_IPS_KEY(i) (0x1711C + ((i) * 4)) +#define NGBE_RSEC_IPS_SALT 0x1712C +#define NGBE_RSEC_IPS_MODE 0x17130 +#define NGBE_RSEC_IPS_MODE_IPV6 0x00000010 +#define NGBE_RSEC_IPS_MODE_DEC 0x00000008 +#define NGBE_RSEC_IPS_MODE_ESP 0x00000004 +#define NGBE_RSEC_IPS_MODE_AH 0x00000002 +#define NGBE_RSEC_IPS_MODE_VALID 0x00000001 + +/************************************** ETH PHY ******************************/ +#define NGBE_XPCS_IDA_ADDR 0x13000 +#define NGBE_XPCS_IDA_DATA 0x13004 +#define NGBE_ETHPHY_IDA_ADDR 0x13008 +#define NGBE_ETHPHY_IDA_DATA 0x1300C + +/************************************** MNG ********************************/ +#define NGBE_MNG_FW_SM 0x1E000 +#define NGBE_MNG_SW_SM 0x1E004 +#define NGBE_MNG_SWFW_SYNC 0x1E008 +#define NGBE_MNG_MBOX 0x1E100 +#define NGBE_MNG_MBOX_CTL 0x1E044 + +#define NGBE_MNG_OS2BMC_CNT 0x1E094 +#define NGBE_MNG_BMC2OS_CNT 0x1E090 + +/* Firmware Semaphore Register */ +#define NGBE_MNG_FW_SM_MODE_MASK 0xE +#define NGBE_MNG_FW_SM_TS_ENABLED 0x1 +/* SW Semaphore Register bitmasks */ +#define NGBE_MNG_SW_SM_SM 0x00000001U /* software Semaphore */ + +/* SW_FW_SYNC definitions */ +#define NGBE_MNG_SWFW_SYNC_SW_PHY 0x0001 +#define NGBE_MNG_SWFW_SYNC_SW_FLASH 0x0008 +#define NGBE_MNG_SWFW_SYNC_SW_MB 0x0004 + +#define NGBE_MNG_MBOX_CTL_SWRDY 0x1 +#define NGBE_MNG_MBOX_CTL_SWACK 0x2 +#define NGBE_MNG_MBOX_CTL_FWRDY 0x4 +#define NGBE_MNG_MBOX_CTL_FWACK 0x8 + +/************************************* ETH MAC *****************************/ +#define NGBE_MAC_TX_CFG 0x11000 +#define NGBE_MAC_RX_CFG 0x11004 +#define NGBE_MAC_PKT_FLT 0x11008 +#define NGBE_MAC_PKT_FLT_PR (0x1) /* promiscuous mode */ +#define NGBE_MAC_PKT_FLT_RA (0x80000000) /* receive all */ +#define NGBE_MAC_WDG_TIMEOUT 0x1100C +#define NGBE_MAC_TX_FLOW_CTRL 0x11070 +#define NGBE_MAC_RX_FLOW_CTRL 0x11090 +#define NGBE_MAC_INT_ST 0x110B0 +#define NGBE_MAC_INT_EN 0x110B4 +#define NGBE_MAC_ADDRESS0_HIGH 0x11300 +#define NGBE_MAC_ADDRESS0_LOW 0x11304 + +#define NGBE_MAC_TX_CFG_TE 0x00000001U +#define NGBE_MAC_TX_CFG_SPEED_MASK 0x60000000U +#define NGBE_MAC_TX_CFG_SPEED_1G 0x60000000U +#define NGBE_MAC_RX_CFG_RE 0x00000001U +#define NGBE_MAC_RX_CFG_JE 0x00000100U +#define NGBE_MAC_RX_CFG_LM 0x00000400U +#define NGBE_MAC_WDG_TIMEOUT_PWE 0x00000100U +#define NGBE_MAC_WDG_TIMEOUT_WTO_MASK 0x0000000FU +#define NGBE_MAC_WDG_TIMEOUT_WTO_DELTA 2 + +#define NGBE_MAC_RX_FLOW_CTRL_RFE 0x00000001U /* receive fc enable */ + +#define NGBE_MSCA 0x11200 +#define NGBE_MSCA_RA(v) ((0xFFFF & (v))) +#define NGBE_MSCA_PA(v) ((0x1F & (v)) << 16) +#define NGBE_MSCA_DA(v) ((0x1F & (v)) << 21) +#define NGBE_MSCC 0x11204 +#define NGBE_MSCC_DATA(v) ((0xFFFF & (v))) +#define NGBE_MSCC_CMD(v) ((0x3 & (v)) << 16) +enum NGBE_MSCA_CMD_value { + NGBE_MSCA_CMD_RSV = 0, + NGBE_MSCA_CMD_WRITE, + NGBE_MSCA_CMD_POST_READ, + NGBE_MSCA_CMD_READ, +}; +#define NGBE_MSCC_SADDR ((0x1U) << 18) +#define NGBE_MSCC_CR(v) ((0x8U & (v)) << 19) +#define NGBE_MSCC_BUSY ((0x1U) << 22) +#define NGBE_MDIO_CLK(v) ((0x7 & (v)) << 19) + +/* EEE registers */ + +/* statistic */ +#define NGBE_MAC_LXOFFRXC 0x11988 +#define NGBE_MAC_PXOFFRXC 0x119DC +#define NGBE_RX_BC_FRAMES_GOOD_LOW 0x11918 +#define NGBE_RX_CRC_ERROR_FRAMES_LOW 0x11928 +#define NGBE_RX_LEN_ERROR_FRAMES_LOW 0x11978 +#define NGBE_RX_UNDERSIZE_FRAMES_GOOD 0x11938 +#define NGBE_RX_OVERSIZE_FRAMES_GOOD 0x1193C +#define NGBE_RX_FRAME_CNT_GOOD_BAD_LOW 0x11900 +#define NGBE_TX_FRAME_CNT_GOOD_BAD_LOW 0x1181C +#define NGBE_TX_MC_FRAMES_GOOD_LOW 0x1182C +#define NGBE_TX_BC_FRAMES_GOOD_LOW 0x11824 +#define NGBE_MMC_CONTROL 0x11800 +#define NGBE_MMC_CONTROL_RSTONRD 0x4 /* reset on read */ +#define NGBE_MMC_CONTROL_UP 0x700 + +/********************************* BAR registers ***************************/ +/* Interrupt Registers */ +#define NGBE_BME_CTL 0x12020 +#define NGBE_PX_MISC_IC 0x100 +#define NGBE_PX_MISC_ICS 0x104 +#define NGBE_PX_MISC_IEN 0x108 +#define NGBE_PX_MISC_IVAR 0x4FC +#define NGBE_PX_GPIE 0x118 +#define NGBE_PX_ISB_ADDR_L 0x160 +#define NGBE_PX_ISB_ADDR_H 0x164 +#define NGBE_PX_TCP_TIMER 0x170 +#define NGBE_PX_ITRSEL 0x180 +#define NGBE_PX_IC 0x120 +#define NGBE_PX_ICS 0x130 +#define NGBE_PX_IMS 0x140 +#define NGBE_PX_IMC 0x150 +#define NGBE_PX_IVAR(_i) (0x500 + (_i) * 4) /* [0,3] */ +#define NGBE_PX_ITR(_i) (0x200 + (_i) * 4) /* [0,8] */ +#define NGBE_PX_TRANSACTION_PENDING 0x168 +#define NGBE_PX_INTA 0x110 + +/* Interrupt register bitmasks */ +/* Extended Interrupt Cause Read */ +#define NGBE_PX_MISC_IC_DEV_RST 0x00000400U /* device reset event */ +#define NGBE_PX_MISC_IC_TIMESYNC 0x00000800U /* time sync */ +#define NGBE_PX_MISC_IC_STALL 0x00001000U /* trans or recv path is + * stalled */ +#define NGBE_PX_MISC_IC_LINKSEC 0x00002000U /* Tx LinkSec require key + * exchange */ +#define NGBE_PX_MISC_IC_RX_MISS 0x00004000U /* Packet Buffer Overrun */ +#define NGBE_PX_MISC_IC_I2C 0x00010000U /* I2C interrupt */ +#define NGBE_PX_MISC_IC_ETH_EVENT 0x00020000U /* err reported by MAC except + * eth link down */ +#define NGBE_PX_MISC_IC_PHY 0x00040000U /* link up */ +#define NGBE_PX_MISC_IC_INT_ERR 0x00100000U /* integrity error */ +#define NGBE_PX_MISC_IC_SPI 0x00200000U /* SPI interface */ +#define NGBE_PX_MISC_IC_VF_MBOX 0x00800000U /* VF-PF message box */ +#define NGBE_PX_MISC_IC_GPIO 0x04000000U /* GPIO interrupt */ +#define NGBE_PX_MISC_IC_PCIE_REQ_ERR 0x08000000U /* pcie request error int */ +#define NGBE_PX_MISC_IC_OVER_HEAT 0x10000000U /* overheat detection */ +#define NGBE_PX_MISC_IC_PROBE_MATCH 0x20000000U /* probe match */ +#define NGBE_PX_MISC_IC_MNG_HOST_MBOX 0x40000000U /* mng mailbox */ +#define NGBE_PX_MISC_IC_TIMER 0x80000000U /* tcp timer */ + +/* Extended Interrupt Cause Set */ +#define NGBE_PX_MISC_ICS_ETH_LKDN 0x00000100U +#define NGBE_PX_MISC_ICS_DEV_RST 0x00000400U +#define NGBE_PX_MISC_ICS_TIMESYNC 0x00000800U +#define NGBE_PX_MISC_ICS_STALL 0x00001000U +#define NGBE_PX_MISC_ICS_LINKSEC 0x00002000U +#define NGBE_PX_MISC_ICS_RX_MISS 0x00004000U +#define NGBE_PX_MISC_ICS_FLOW_DIR 0x00008000U +#define NGBE_PX_MISC_ICS_I2C 0x00010000U +#define NGBE_PX_MISC_ICS_ETH_EVENT 0x00020000U +#define NGBE_PX_MISC_ICS_ETH_LK 0x00040000U +#define NGBE_PX_MISC_ICS_ETH_AN 0x00080000U +#define NGBE_PX_MISC_ICS_INT_ERR 0x00100000U +#define NGBE_PX_MISC_ICS_SPI 0x00200000U +#define NGBE_PX_MISC_ICS_VF_MBOX 0x00800000U +#define NGBE_PX_MISC_ICS_GPIO 0x04000000U +#define NGBE_PX_MISC_ICS_PCIE_REQ_ERR 0x08000000U +#define NGBE_PX_MISC_ICS_OVER_HEAT 0x10000000U +#define NGBE_PX_MISC_ICS_PROBE_MATCH 0x20000000U +#define NGBE_PX_MISC_ICS_MNG_HOST_MBOX 0x40000000U +#define NGBE_PX_MISC_ICS_TIMER 0x80000000U + +/* Extended Interrupt Enable Set */ +#define NGBE_PX_MISC_IEN_ETH_LKDN 0x00000100U +#define NGBE_PX_MISC_IEN_DEV_RST 0x00000400U +#define NGBE_PX_MISC_IEN_TIMESYNC 0x00000800U +#define NGBE_PX_MISC_IEN_STALL 0x00001000U +#define NGBE_PX_MISC_IEN_LINKSEC 0x00002000U +#define NGBE_PX_MISC_IEN_RX_MISS 0x00004000U +#define NGBE_PX_MISC_IEN_I2C 0x00010000U +#define NGBE_PX_MISC_IEN_ETH_EVENT 0x00020000U +#define NGBE_PX_MISC_IEN_ETH_LK 0x00040000U +#define NGBE_PX_MISC_IEN_ETH_AN 0x00080000U +#define NGBE_PX_MISC_IEN_INT_ERR 0x00100000U +#define NGBE_PX_MISC_IEN_SPI 0x00200000U +#define NGBE_PX_MISC_IEN_VF_MBOX 0x00800000U +#define NGBE_PX_MISC_IEN_GPIO 0x04000000U +#define NGBE_PX_MISC_IEN_PCIE_REQ_ERR 0x08000000U +#define NGBE_PX_MISC_IEN_OVER_HEAT 0x10000000U +#define NGBE_PX_MISC_IEN_PROBE_MATCH 0x20000000U +#define NGBE_PX_MISC_IEN_MNG_HOST_MBOX 0x40000000U +#define NGBE_PX_MISC_IEN_TIMER 0x80000000U + +#define NGBE_PX_MISC_IEN_MASK ( \ + NGBE_PX_MISC_IEN_ETH_LKDN| \ + NGBE_PX_MISC_IEN_DEV_RST | \ + NGBE_PX_MISC_IEN_ETH_EVENT | \ + NGBE_PX_MISC_IEN_ETH_LK | \ + NGBE_PX_MISC_IEN_ETH_AN | \ + NGBE_PX_MISC_IEN_INT_ERR | \ + NGBE_PX_MISC_IEN_VF_MBOX | \ + NGBE_PX_MISC_IEN_GPIO | \ + NGBE_PX_MISC_IEN_MNG_HOST_MBOX | \ + NGBE_PX_MISC_IEN_STALL | \ + NGBE_PX_MISC_IEN_PCIE_REQ_ERR | \ + NGBE_PX_MISC_IEN_TIMER) + +/* General purpose Interrupt Enable */ +#define NGBE_PX_GPIE_MODEL 0x00000001U +#define NGBE_PX_GPIE_IMEN 0x00000002U +#define NGBE_PX_GPIE_LL_INTERVAL 0x000000F0U + +/* Interrupt Vector Allocation Registers */ +#define NGBE_PX_IVAR_REG_NUM 64 +#define NGBE_PX_IVAR_ALLOC_VAL 0x80 /* Interrupt Allocation valid */ + +#define NGBE_MAX_INT_RATE 500000 +#define NGBE_MIN_INT_RATE 980 +#define NGBE_MAX_EITR 0x00007FFCU +#define NGBE_MIN_EITR 4 +#define NGBE_PX_ITR_ITR_INT_MASK 0x00000FF8U +#define NGBE_PX_ITR_LLI_CREDIT 0x001f0000U +#define NGBE_PX_ITR_LLI_MOD 0x00008000U +#define NGBE_PX_ITR_CNT_WDIS 0x80000000U +#define NGBE_PX_ITR_ITR_CNT 0x0FE00000U + +/* transmit DMA Registers */ +#define NGBE_PX_TR_BAL(_i) (0x03000 + ((_i) * 0x40)) /* [0, 7] */ +#define NGBE_PX_TR_BAH(_i) (0x03004 + ((_i) * 0x40)) +#define NGBE_PX_TR_WP(_i) (0x03008 + ((_i) * 0x40)) +#define NGBE_PX_TR_RP(_i) (0x0300C + ((_i) * 0x40)) +#define NGBE_PX_TR_CFG(_i) (0x03010 + ((_i) * 0x40)) +/* Transmit Config masks */ +#define NGBE_PX_TR_CFG_ENABLE (1) /* Ena specific Tx Queue */ +#define NGBE_PX_TR_CFG_TR_SIZE_SHIFT 1 /* tx desc number per ring */ +#define NGBE_PX_TR_CFG_SWFLSH (1 << 26) /* Tx Desc. wr-bk flushing */ +#define NGBE_PX_TR_CFG_WTHRESH_SHIFT 16 /* shift to WTHRESH bits */ +#define NGBE_PX_TR_CFG_THRE_SHIFT 8 + +#define NGBE_PX_TR_RPn(q_per_pool, vf_number, vf_q_index) \ + (NGBE_PX_TR_RP((q_per_pool)*(vf_number) + (vf_q_index))) + +#define NGBE_PX_TR_WPn(q_per_pool, vf_number, vf_q_index) \ + (NGBE_PX_TR_WP((q_per_pool)*(vf_number) + (vf_q_index))) + +/* Receive DMA Registers */ +#define NGBE_PX_RR_BAL(_i) (0x01000 + ((_i) * 0x40)) /* [0, 7] */ +#define NGBE_PX_RR_BAH(_i) (0x01004 + ((_i) * 0x40)) +#define NGBE_PX_RR_WP(_i) (0x01008 + ((_i) * 0x40)) +#define NGBE_PX_RR_RP(_i) (0x0100C + ((_i) * 0x40)) +#define NGBE_PX_RR_CFG(_i) (0x01010 + ((_i) * 0x40)) +/* PX_RR_CFG bit definitions */ +#define NGBE_PX_RR_CFG_RR_SIZE_SHIFT 1 +#define NGBE_PX_RR_CFG_BSIZEPKT_SHIFT 2 /* so many KBs */ +#define NGBE_PX_RR_CFG_BSIZEHDRSIZE_SHIFT 6 /* 64byte resolution (>> 6) + * + at bit 8 offset (<< 12) + * = (<< 6) + */ +#define NGBE_PX_RR_CFG_DROP_EN 0x40000000U +#define NGBE_PX_RR_CFG_VLAN 0x80000000U +#define NGBE_PX_RR_CFG_RSC 0x20000000U +#define NGBE_PX_RR_CFG_CNTAG 0x10000000U +#define NGBE_PX_RR_CFG_RSC_CNT_MD 0x08000000U +#define NGBE_PX_RR_CFG_SPLIT_MODE 0x04000000U +#define NGBE_PX_RR_CFG_STALL 0x02000000U +#define NGBE_PX_RR_CFG_MAX_RSCBUF_1 0x00000000U +#define NGBE_PX_RR_CFG_MAX_RSCBUF_4 0x00800000U +#define NGBE_PX_RR_CFG_MAX_RSCBUF_8 0x01000000U +#define NGBE_PX_RR_CFG_MAX_RSCBUF_16 0x01800000U +#define NGBE_PX_RR_CFG_RR_THER 0x00070000U +#define NGBE_PX_RR_CFG_RR_THER_SHIFT 16 + +#define NGBE_PX_RR_CFG_RR_HDR_SZ 0x0000F000U +#define NGBE_PX_RR_CFG_RR_BUF_SZ 0x00000F00U +#define NGBE_PX_RR_CFG_RR_SZ 0x0000007EU +#define NGBE_PX_RR_CFG_RR_EN 0x00000001U + +/* statistic */ +#define NGBE_PX_MPRC(_i) (0x1020 + ((_i) * 64)) /* [0,7] */ +#define NGBE_PX_BPRC(_i) (0x1024 + ((_i) * 64)) + + +#define NGBE_PX_MPTC(_i) (0x3020 + ((_i) * 64)) /* [0,7] */ +#define NGBE_PX_BPTC(_i) (0x3024 + ((_i) * 64)) + +#define NGBE_VX_GPRC 0x01014 +#define NGBE_VX_GORC_LSB 0x01018 +#define NGBE_VX_GORC_MSB 0x0101C +#define NGBE_VX_MPRC 0x01020 +#define NGBE_VX_BPRC 0x01024 + +#define NGBE_VX_GPTC 0x03014 +#define NGBE_VX_GOTC_LSB 0x03018 +#define NGBE_VX_GOTC_MSB 0x0301C +#define NGBE_VX_MPTC 0x03020 +#define NGBE_VX_BPTC 0x03024 + +#define NGBE_PX_GPRC 0x12504 + +#define NGBE_PX_GPTC 0x18308 + +#define NGBE_PX_GORC_LSB 0x12508 +#define NGBE_PX_GORC_MSB 0x1250C + +#define NGBE_PX_GOTC_LSB 0x1830C +#define NGBE_PX_GOTC_MSB 0x18310 + +/*************************** Flash region definition *************************/ +/* EEC Register */ +#define NGBE_EEC_SK 0x00000001U /* EEPROM Clock */ +#define NGBE_EEC_CS 0x00000002U /* EEPROM Chip Select */ +#define NGBE_EEC_DI 0x00000004U /* EEPROM Data In */ +#define NGBE_EEC_DO 0x00000008U /* EEPROM Data Out */ +#define NGBE_EEC_FWE_MASK 0x00000030U /* FLASH Write Enable */ +#define NGBE_EEC_FWE_DIS 0x00000010U /* Disable FLASH writes */ +#define NGBE_EEC_FWE_EN 0x00000020U /* Enable FLASH writes */ +#define NGBE_EEC_FWE_SHIFT 4 +#define NGBE_EEC_REQ 0x00000040U /* EEPROM Access Request */ +#define NGBE_EEC_GNT 0x00000080U /* EEPROM Access Grant */ +#define NGBE_EEC_PRES 0x00000100U /* EEPROM Present */ +#define NGBE_EEC_ARD 0x00000200U /* EEPROM Auto Read Done */ +#define NGBE_EEC_FLUP 0x00800000U /* Flash update command */ +#define NGBE_EEC_SEC1VAL 0x02000000U /* Sector 1 Valid */ +#define NGBE_EEC_FLUDONE 0x04000000U /* Flash update done */ +/* EEPROM Addressing bits based on type (0-small, 1-large) */ +#define NGBE_EEC_ADDR_SIZE 0x00000400U +#define NGBE_EEC_SIZE 0x00007800U /* EEPROM Size */ +#define NGBE_EERD_MAX_ADDR 0x00003FFFU /* EERD alows 14 bits for addr. */ + +#define NGBE_EEC_SIZE_SHIFT 11 +#define NGBE_EEPROM_WORD_SIZE_SHIFT 6 +#define NGBE_EEPROM_OPCODE_BITS 8 + +/* FLA Register */ +#define NGBE_FLA_LOCKED 0x00000040U + +/* Part Number String Length */ +#define NGBE_PBANUM_LENGTH 32 + +/* Checksum and EEPROM pointers */ +#define NGBE_PBANUM_PTR_GUARD 0xFAFA +#define NGBE_CHECKSUM_CAP_ST_PASS 0x80658383 +#define NGBE_CHECKSUM_CAP_ST_FAIL 0x70657376 +#define NGBE_EEPROM_CHECKSUM 0x2F +#define NGBE_EEPROM_SUM 0xBABA +#define NGBE_OPTION_ROM_PTR 0x05 +#define NGBE_SHADOW_RAM_SIZE 0x4000 +#define NGBE_PCIE_CONFIG_SIZE 0x08 +#define NGBE_EEPROM_LAST_WORD 0x800 +#define NGBE_FW_PTR 0x0F +#define NGBE_SW_REGION_PTR 0x28 + +#define NGBE_CALSUM_COMMAND 0xE9 +#define NGBE_CALSUM_CAP_STATUS 0x10224 +#define NGBE_EEPROM_VERSION_STORE_REG 0x1022C +#define NGBE_SAN_MAC_ADDR_PTR 0x18 +#define NGBE_DEVICE_CAPS 0x1C +#define NGBE_EEPROM_VERSION_L 0x1D +#define NGBE_EEPROM_VERSION_H 0x1E + +#define NGBE_MAX_MSIX_VECTORS_EMERALD 0x09 + +/* MSI-X capability fields masks */ +#define NGBE_PCIE_MSIX_TBL_SZ_MASK 0x7FF + +/* EEPROM Commands - SPI */ +#define NGBE_EEPROM_MAX_RETRY_SPI 5000 /* Max wait 5ms for RDY signal */ +#define NGBE_EEPROM_STATUS_RDY_SPI 0x01 +#define NGBE_EEPROM_READ_OPCODE_SPI 0x03 /* EEPROM read opcode */ +#define NGBE_EEPROM_WRITE_OPCODE_SPI 0x02 /* EEPROM write opcode */ +#define NGBE_EEPROM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = addr bit-8 */ +#define NGBE_EEPROM_WREN_OPCODE_SPI 0x06 /* EEPROM set Write Ena latch */ +/* EEPROM reset Write Enable latch */ +#define NGBE_EEPROM_WRDI_OPCODE_SPI 0x04 +#define NGBE_EEPROM_RDSR_OPCODE_SPI 0x05 /* EEPROM read Status reg */ +#define NGBE_EEPROM_WRSR_OPCODE_SPI 0x01 /* EEPROM write Status reg */ +#define NGBE_EEPROM_ERASE4K_OPCODE_SPI 0x20 /* EEPROM ERASE 4KB */ +#define NGBE_EEPROM_ERASE64K_OPCODE_SPI 0xD8 /* EEPROM ERASE 64KB */ +#define NGBE_EEPROM_ERASE256_OPCODE_SPI 0xDB /* EEPROM ERASE 256B */ + +/* EEPROM Read Register */ +#define NGBE_EEPROM_RW_REG_DATA 16 /* data offset in EEPROM read reg */ +#define NGBE_EEPROM_RW_REG_DONE 2 /* Offset to READ done bit */ +#define NGBE_EEPROM_RW_REG_START 1 /* First bit to start operation */ +#define NGBE_EEPROM_RW_ADDR_SHIFT 2 /* Shift to the address bits */ +#define NGBE_NVM_POLL_WRITE 1 /* Flag for polling for wr complete */ +#define NGBE_NVM_POLL_READ 0 /* Flag for polling for rd complete */ + +#define NVM_INIT_CTRL_3 0x38 +#define NVM_INIT_CTRL_3_LPLU 0x8 + +#define NGBE_ETH_LENGTH_OF_ADDRESS 6 + +#define NGBE_EEPROM_PAGE_SIZE_MAX 128 +#define NGBE_EEPROM_RD_BUFFER_MAX_COUNT 256 /* words rd in burst */ +#define NGBE_EEPROM_WR_BUFFER_MAX_COUNT 256 /* words wr in burst */ +#define NGBE_EEPROM_CTRL_2 1 /* EEPROM CTRL word 2 */ +#define NGBE_EEPROM_CCD_BIT 2 + +#ifndef NGBE_EEPROM_GRANT_ATTEMPTS +#define NGBE_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM attempts to gain grant */ +#endif + +#ifndef NGBE_EERD_EEWR_ATTEMPTS +/* Number of 5 microseconds we wait for EERD read and + * EERW write to complete */ +#define NGBE_EERD_EEWR_ATTEMPTS 100000 +#endif + +#ifndef NGBE_FLUDONE_ATTEMPTS +/* # attempts we wait for flush update to complete */ +#define NGBE_FLUDONE_ATTEMPTS 20000 +#endif + +#define NGBE_PCIE_CTRL2 0x5 /* PCIe Control 2 Offset */ +#define NGBE_PCIE_CTRL2_DUMMY_ENABLE 0x8 /* Dummy Function Enable */ +#define NGBE_PCIE_CTRL2_LAN_DISABLE 0x2 /* LAN PCI Disable */ +#define NGBE_PCIE_CTRL2_DISABLE_SELECT 0x1 /* LAN Disable Select */ + +#define NGBE_SAN_MAC_ADDR_PORT0_OFFSET 0x0 +#define NGBE_SAN_MAC_ADDR_PORT1_OFFSET 0x3 +#define NGBE_DEVICE_CAPS_ALLOW_ANY_SFP 0x1 +#define NGBE_DEVICE_CAPS_FCOE_OFFLOADS 0x2 +#define NGBE_FW_LESM_PARAMETERS_PTR 0x2 +#define NGBE_FW_LESM_STATE_1 0x1 +#define NGBE_FW_LESM_STATE_ENABLED 0x8000 /* LESM Enable bit */ +#define NGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR 0x4 +#define NGBE_FW_PATCH_VERSION_4 0x7 +#define NGBE_FCOE_IBA_CAPS_BLK_PTR 0x33 /* iSCSI/FCOE block */ +#define NGBE_FCOE_IBA_CAPS_FCOE 0x20 /* FCOE flags */ +#define NGBE_ISCSI_FCOE_BLK_PTR 0x17 /* iSCSI/FCOE block */ +#define NGBE_ISCSI_FCOE_FLAGS_OFFSET 0x0 /* FCOE flags */ +#define NGBE_ISCSI_FCOE_FLAGS_ENABLE 0x1 /* FCOE flags enable bit */ +#define NGBE_ALT_SAN_MAC_ADDR_BLK_PTR 0x17 /* Alt. SAN MAC block */ +#define NGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET 0x0 /* Alt SAN MAC capability */ +#define NGBE_ALT_SAN_MAC_ADDR_PORT0_OFFSET 0x1 /* Alt SAN MAC 0 offset */ +#define NGBE_ALT_SAN_MAC_ADDR_PORT1_OFFSET 0x4 /* Alt SAN MAC 1 offset */ +#define NGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET 0x7 /* Alt WWNN prefix offset */ +#define NGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET 0x8 /* Alt WWPN prefix offset */ +#define NGBE_ALT_SAN_MAC_ADDR_CAPS_SANMAC 0x0 /* Alt SAN MAC exists */ +#define NGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN 0x1 /* Alt WWN base exists */ +#define NGBE_DEVICE_CAPS_WOL_PORT0_1 0x4 /* WoL supported on ports 0 & 1 */ +#define NGBE_DEVICE_CAPS_WOL_PORT0 0x8 /* WoL supported on port 0 */ +#define NGBE_DEVICE_CAPS_WOL_MASK 0xC /* Mask for WoL capabilities */ + +/******************************** PCI Bus Info *******************************/ +#define NGBE_PCI_DEVICE_STATUS 0xAA +#define NGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING 0x0020 +#define NGBE_PCI_LINK_STATUS 0xB2 +#define NGBE_PCI_DEVICE_CONTROL2 0xC8 +#define NGBE_PCI_LINK_WIDTH 0x3F0 +#define NGBE_PCI_LINK_WIDTH_1 0x10 +#define NGBE_PCI_LINK_WIDTH_2 0x20 +#define NGBE_PCI_LINK_WIDTH_4 0x40 +#define NGBE_PCI_LINK_WIDTH_8 0x80 +#define NGBE_PCI_LINK_SPEED 0xF +#define NGBE_PCI_LINK_SPEED_2500 0x1 +#define NGBE_PCI_LINK_SPEED_5000 0x2 +#define NGBE_PCI_LINK_SPEED_8000 0x3 +#define NGBE_PCI_HEADER_TYPE_REGISTER 0x0E +#define NGBE_PCI_HEADER_TYPE_MULTIFUNC 0x80 +#define NGBE_PCI_DEVICE_CONTROL2_16ms 0x0005 + +#define NGBE_PCIDEVCTRL2_RELAX_ORDER_OFFSET 4 +#define NGBE_PCIDEVCTRL2_RELAX_ORDER_MASK \ + (0x0001 << NGBE_PCIDEVCTRL2_RELAX_ORDER_OFFSET) +#define NGBE_PCIDEVCTRL2_RELAX_ORDER_ENABLE \ + (0x01 << NGBE_PCIDEVCTRL2_RELAX_ORDER_OFFSET) + +#define NGBE_PCIDEVCTRL2_TIMEO_MASK 0xf +#define NGBE_PCIDEVCTRL2_16_32ms_def 0x0 +#define NGBE_PCIDEVCTRL2_50_100us 0x1 +#define NGBE_PCIDEVCTRL2_1_2ms 0x2 +#define NGBE_PCIDEVCTRL2_16_32ms 0x5 +#define NGBE_PCIDEVCTRL2_65_130ms 0x6 +#define NGBE_PCIDEVCTRL2_260_520ms 0x9 +#define NGBE_PCIDEVCTRL2_1_2s 0xa +#define NGBE_PCIDEVCTRL2_4_8s 0xd +#define NGBE_PCIDEVCTRL2_17_34s 0xe + +/******************* Receive Descriptor bit definitions **********************/ +#define NGBE_RXD_IPSEC_STATUS_SECP 0x00020000U +#define NGBE_RXD_IPSEC_ERROR_INVALID_PROTOCOL 0x08000000U +#define NGBE_RXD_IPSEC_ERROR_INVALID_LENGTH 0x10000000U +#define NGBE_RXD_IPSEC_ERROR_AUTH_FAILED 0x18000000U +#define NGBE_RXD_IPSEC_ERROR_BIT_MASK 0x18000000U + +#define NGBE_RXD_NEXTP_MASK 0x000FFFF0U /* Next Descriptor Index */ +#define NGBE_RXD_NEXTP_SHIFT 0x00000004U +#define NGBE_RXD_STAT_MASK 0x000fffffU /* Stat/NEXTP: bit 0-19 */ +#define NGBE_RXD_STAT_DD 0x00000001U /* Done */ +#define NGBE_RXD_STAT_EOP 0x00000002U /* End of Packet */ +#define NGBE_RXD_STAT_CLASS_ID_MASK 0x0000001CU +#define NGBE_RXD_STAT_CLASS_ID_TC_RSS 0x00000000U +#define NGBE_RXD_STAT_CLASS_ID_SYN 0x00000008U +#define NGBE_RXD_STAT_CLASS_ID_5_TUPLE 0x0000000CU +#define NGBE_RXD_STAT_CLASS_ID_L2_ETYPE 0x00000010U +#define NGBE_RXD_STAT_VP 0x00000020U /* IEEE VLAN Pkt */ +#define NGBE_RXD_STAT_UDPCS 0x00000040U /* UDP xsum calculated */ +#define NGBE_RXD_STAT_L4CS 0x00000080U /* L4 xsum calculated */ +#define NGBE_RXD_STAT_IPCS 0x00000100U /* IP xsum calculated */ +#define NGBE_RXD_STAT_PIF 0x00000200U /* passed in-exact filter */ +#define NGBE_RXD_STAT_OUTERIPCS 0x00000400U /* Cloud IP xsum calculated*/ +#define NGBE_RXD_STAT_VEXT 0x00000800U /* 1st VLAN found */ +#define NGBE_RXD_STAT_LLINT 0x00002000U /* Pkt caused Low Latency + * Int */ +#define NGBE_RXD_STAT_TS 0x00004000U /* IEEE1588 Time Stamp */ +#define NGBE_RXD_STAT_SECP 0x00008000U /* Security Processing */ +#define NGBE_RXD_STAT_LB 0x00010000U /* Loopback Status */ +#define NGBE_RXD_STAT_FCEOFS 0x00020000U /* FCoE EOF/SOF Stat */ +#define NGBE_RXD_STAT_FCSTAT 0x000C0000U /* FCoE Pkt Stat */ +#define NGBE_RXD_STAT_FCSTAT_NOMTCH 0x00000000U /* 00: No Ctxt Match */ +#define NGBE_RXD_STAT_FCSTAT_NODDP 0x00040000U /* 01: Ctxt w/o DDP */ +#define NGBE_RXD_STAT_FCSTAT_FCPRSP 0x00080000U /* 10: Recv. FCP_RSP */ +#define NGBE_RXD_STAT_FCSTAT_DDP 0x000C0000U /* 11: Ctxt w/ DDP */ + +#define NGBE_RXD_ERR_MASK 0xfff00000U /* RDESC.ERRORS mask */ +#define NGBE_RXD_ERR_SHIFT 20 /* RDESC.ERRORS shift */ +#define NGBE_RXD_ERR_FCEOFE 0x80000000U /* FCEOFe/IPE */ +#define NGBE_RXD_ERR_HBO 0x00800000U /*Header Buffer Overflow */ +#define NGBE_RXD_ERR_OUTERIPER 0x04000000U /* CRC IP Header error */ +#define NGBE_RXD_ERR_SECERR_MASK 0x18000000U +#define NGBE_RXD_ERR_RXE 0x20000000U /* Any MAC Error */ +#define NGBE_RXD_ERR_TCPE 0x40000000U /* TCP/UDP Checksum Error */ +#define NGBE_RXD_ERR_IPE 0x80000000U /* IP Checksum Error */ + +#define NGBE_RXDPS_HDRSTAT_HDRSP 0x00008000U +#define NGBE_RXDPS_HDRSTAT_HDRLEN_MASK 0x000003FFU + +#define NGBE_RXD_RSSTYPE_MASK 0x0000000FU +#define NGBE_RXD_TPID_MASK 0x000001C0U +#define NGBE_RXD_TPID_SHIFT 6 +#define NGBE_RXD_HDRBUFLEN_MASK 0x00007FE0U +#define NGBE_RXD_RSCCNT_MASK 0x001E0000U +#define NGBE_RXD_RSCCNT_SHIFT 17 +#define NGBE_RXD_HDRBUFLEN_SHIFT 5 +#define NGBE_RXD_SPLITHEADER_EN 0x00001000U +#define NGBE_RXD_SPH 0x8000 + +/* RSS Hash results */ +#define NGBE_RXD_RSSTYPE_NONE 0x00000000U +#define NGBE_RXD_RSSTYPE_IPV4_TCP 0x00000001U +#define NGBE_RXD_RSSTYPE_IPV4 0x00000002U +#define NGBE_RXD_RSSTYPE_IPV6_TCP 0x00000003U +#define NGBE_RXD_RSSTYPE_IPV4_SCTP 0x00000004U +#define NGBE_RXD_RSSTYPE_IPV6 0x00000005U +#define NGBE_RXD_RSSTYPE_IPV6_SCTP 0x00000006U +#define NGBE_RXD_RSSTYPE_IPV4_UDP 0x00000007U +#define NGBE_RXD_RSSTYPE_IPV6_UDP 0x00000008U + +/** + * receive packet type + * PTYPE:8 = TUN:2 + PKT:2 + TYP:4 + **/ +/* TUN */ +#define NGBE_PTYPE_TUN_IPV4 (0x80) +#define NGBE_PTYPE_TUN_IPV6 (0xC0) + +/* PKT for TUN */ +#define NGBE_PTYPE_PKT_IPIP (0x00) /* IP+IP */ +#define NGBE_PTYPE_PKT_IG (0x10) /* IP+GRE */ +#define NGBE_PTYPE_PKT_IGM (0x20) /* IP+GRE+MAC */ +#define NGBE_PTYPE_PKT_IGMV (0x30) /* IP+GRE+MAC+VLAN */ +/* PKT for !TUN */ +#define NGBE_PTYPE_PKT_MAC (0x10) +#define NGBE_PTYPE_PKT_IP (0x20) +#define NGBE_PTYPE_PKT_FCOE (0x30) + +/* TYP for PKT=mac */ +#define NGBE_PTYPE_TYP_MAC (0x01) +#define NGBE_PTYPE_TYP_TS (0x02) /* time sync */ +#define NGBE_PTYPE_TYP_FIP (0x03) +#define NGBE_PTYPE_TYP_LLDP (0x04) +#define NGBE_PTYPE_TYP_CNM (0x05) +#define NGBE_PTYPE_TYP_EAPOL (0x06) +#define NGBE_PTYPE_TYP_ARP (0x07) +/* TYP for PKT=ip */ +#define NGBE_PTYPE_PKT_IPV6 (0x08) +#define NGBE_PTYPE_TYP_IPFRAG (0x01) +#define NGBE_PTYPE_TYP_IP (0x02) +#define NGBE_PTYPE_TYP_UDP (0x03) +#define NGBE_PTYPE_TYP_TCP (0x04) +#define NGBE_PTYPE_TYP_SCTP (0x05) +/* TYP for PKT=fcoe */ +#define NGBE_PTYPE_PKT_VFT (0x08) +#define NGBE_PTYPE_TYP_FCOE (0x00) +#define NGBE_PTYPE_TYP_FCDATA (0x01) +#define NGBE_PTYPE_TYP_FCRDY (0x02) +#define NGBE_PTYPE_TYP_FCRSP (0x03) +#define NGBE_PTYPE_TYP_FCOTHER (0x04) + +/* Packet type non-ip values */ +enum ngbe_l2_ptypes { + NGBE_PTYPE_L2_ABORTED = (NGBE_PTYPE_PKT_MAC), + NGBE_PTYPE_L2_MAC = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_MAC), + NGBE_PTYPE_L2_TS = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_TS), + NGBE_PTYPE_L2_FIP = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_FIP), + NGBE_PTYPE_L2_LLDP = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_LLDP), + NGBE_PTYPE_L2_CNM = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_CNM), + NGBE_PTYPE_L2_EAPOL = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_EAPOL), + NGBE_PTYPE_L2_ARP = (NGBE_PTYPE_PKT_MAC | NGBE_PTYPE_TYP_ARP), + + NGBE_PTYPE_L2_IPV4_FRAG = (NGBE_PTYPE_PKT_IP | + NGBE_PTYPE_TYP_IPFRAG), + NGBE_PTYPE_L2_IPV4 = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_TYP_IP), + NGBE_PTYPE_L2_IPV4_UDP = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_TYP_UDP), + NGBE_PTYPE_L2_IPV4_TCP = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_TYP_TCP), + NGBE_PTYPE_L2_IPV4_SCTP = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_TYP_SCTP), + NGBE_PTYPE_L2_IPV6_FRAG = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_PKT_IPV6 | + NGBE_PTYPE_TYP_IPFRAG), + NGBE_PTYPE_L2_IPV6 = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_PKT_IPV6 | + NGBE_PTYPE_TYP_IP), + NGBE_PTYPE_L2_IPV6_UDP = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_PKT_IPV6 | + NGBE_PTYPE_TYP_UDP), + NGBE_PTYPE_L2_IPV6_TCP = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_PKT_IPV6 | + NGBE_PTYPE_TYP_TCP), + NGBE_PTYPE_L2_IPV6_SCTP = (NGBE_PTYPE_PKT_IP | NGBE_PTYPE_PKT_IPV6 | + NGBE_PTYPE_TYP_SCTP), + + NGBE_PTYPE_L2_FCOE = (NGBE_PTYPE_PKT_FCOE | NGBE_PTYPE_TYP_FCOE), + NGBE_PTYPE_L2_FCOE_FCDATA = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_TYP_FCDATA), + NGBE_PTYPE_L2_FCOE_FCRDY = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_TYP_FCRDY), + NGBE_PTYPE_L2_FCOE_FCRSP = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_TYP_FCRSP), + NGBE_PTYPE_L2_FCOE_FCOTHER = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_TYP_FCOTHER), + NGBE_PTYPE_L2_FCOE_VFT = (NGBE_PTYPE_PKT_FCOE | NGBE_PTYPE_PKT_VFT), + NGBE_PTYPE_L2_FCOE_VFT_FCDATA = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_PKT_VFT | NGBE_PTYPE_TYP_FCDATA), + NGBE_PTYPE_L2_FCOE_VFT_FCRDY = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_PKT_VFT | NGBE_PTYPE_TYP_FCRDY), + NGBE_PTYPE_L2_FCOE_VFT_FCRSP = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_PKT_VFT | NGBE_PTYPE_TYP_FCRSP), + NGBE_PTYPE_L2_FCOE_VFT_FCOTHER = (NGBE_PTYPE_PKT_FCOE | + NGBE_PTYPE_PKT_VFT | NGBE_PTYPE_TYP_FCOTHER), + + NGBE_PTYPE_L2_TUN4_MAC = (NGBE_PTYPE_TUN_IPV4 | NGBE_PTYPE_PKT_IGM), + NGBE_PTYPE_L2_TUN6_MAC = (NGBE_PTYPE_TUN_IPV6 | NGBE_PTYPE_PKT_IGM), +}; + +#define NGBE_RXD_PKTTYPE(_rxd) \ + ((le32_to_cpu((_rxd)->wb.lower.lo_dword.data) >> 9) & 0xFF) +#define NGBE_PTYPE_TUN(_pt) ((_pt) & 0xC0) +#define NGBE_PTYPE_PKT(_pt) ((_pt) & 0x30) +#define NGBE_PTYPE_TYP(_pt) ((_pt) & 0x0F) +#define NGBE_PTYPE_TYPL4(_pt) ((_pt) & 0x07) + +#define NGBE_RXD_IPV6EX(_rxd) \ + ((le32_to_cpu((_rxd)->wb.lower.lo_dword.data) >> 6) & 0x1) + +/* Security Processing bit Indication */ +#define NGBE_RXD_LNKSEC_STATUS_SECP 0x00020000U +#define NGBE_RXD_LNKSEC_ERROR_NO_SA_MATCH 0x08000000U +#define NGBE_RXD_LNKSEC_ERROR_REPLAY_ERROR 0x10000000U +#define NGBE_RXD_LNKSEC_ERROR_BIT_MASK 0x18000000U +#define NGBE_RXD_LNKSEC_ERROR_BAD_SIG 0x18000000U + +/* Masks to determine if packets should be dropped due to frame errors */ +#define NGBE_RXD_ERR_FRAME_ERR_MASK NGBE_RXD_ERR_RXE + +/*********************** Adv Transmit Descriptor Config Masks ****************/ +#define NGBE_TXD_DTALEN_MASK 0x0000FFFFU /* Data buf length(bytes) */ +#define NGBE_TXD_MAC_LINKSEC 0x00040000U /* Insert LinkSec */ +#define NGBE_TXD_MAC_TSTAMP 0x00080000U /* IEEE1588 time stamp */ +#define NGBE_TXD_IPSEC_SA_INDEX_MASK 0x000003FFU /* IPSec SA index */ +#define NGBE_TXD_IPSEC_ESP_LEN_MASK 0x000001FFU /* IPSec ESP length */ +#define NGBE_TXD_DTYP_MASK 0x00F00000U /* DTYP mask */ +#define NGBE_TXD_DTYP_CTXT 0x00100000U /* Adv Context Desc */ +#define NGBE_TXD_DTYP_DATA 0x00000000U /* Adv Data Descriptor */ +#define NGBE_TXD_EOP 0x01000000U /* End of Packet */ +#define NGBE_TXD_IFCS 0x02000000U /* Insert FCS */ +#define NGBE_TXD_LINKSEC 0x04000000U /* enable linksec */ +#define NGBE_TXD_RS 0x08000000U /* Report Status */ +#define NGBE_TXD_ECU 0x10000000U /* DDP hdr type or iSCSI */ +#define NGBE_TXD_QCN 0x20000000U /* cntag insertion enable */ +#define NGBE_TXD_VLE 0x40000000U /* VLAN pkt enable */ +#define NGBE_TXD_TSE 0x80000000U /* TCP Seg enable */ +#define NGBE_TXD_STAT_DD 0x00000001U /* Descriptor Done */ +#define NGBE_TXD_IDX_SHIFT 4 /* Adv desc Index shift */ +#define NGBE_TXD_CC 0x00000080U /* Check Context */ +#define NGBE_TXD_IPSEC 0x00000100U /* enable ipsec esp */ +#define NGBE_TXD_IIPCS 0x00000400U +#define NGBE_TXD_EIPCS 0x00000800U +#define NGBE_TXD_L4CS 0x00000200U +#define NGBE_TXD_PAYLEN_SHIFT 13 /* Adv desc PAYLEN shift */ +#define NGBE_TXD_MACLEN_SHIFT 9 /* Adv ctxt desc mac len shift */ +#define NGBE_TXD_VLAN_SHIFT 16 /* Adv ctxt vlan tag shift */ +#define NGBE_TXD_TAG_TPID_SEL_SHIFT 11 +#define NGBE_TXD_IPSEC_TYPE_SHIFT 14 +#define NGBE_TXD_ENC_SHIFT 15 + +#define NGBE_TXD_TUCMD_IPSEC_TYPE_ESP 0x00004000U /* IPSec Type ESP */ +#define NGBE_TXD_TUCMD_IPSEC_ENCRYPT_EN 0x00008000/* ESP Encrypt Enable */ +#define NGBE_TXD_TUCMD_FCOE 0x00010000U /* FCoE Frame Type */ +#define NGBE_TXD_FCOEF_EOF_MASK (0x3 << 10) /* FC EOF index */ +#define NGBE_TXD_FCOEF_SOF ((1 << 2) << 10) /* FC SOF index */ +#define NGBE_TXD_FCOEF_PARINC ((1 << 3) << 10) /* Rel_Off in F_CTL */ +#define NGBE_TXD_FCOEF_ORIE ((1 << 4) << 10) /* Orientation End */ +#define NGBE_TXD_FCOEF_ORIS ((1 << 5) << 10) /* Orientation Start */ +#define NGBE_TXD_FCOEF_EOF_N (0x0 << 10) /* 00: EOFn */ +#define NGBE_TXD_FCOEF_EOF_T (0x1 << 10) /* 01: EOFt */ +#define NGBE_TXD_FCOEF_EOF_NI (0x2 << 10) /* 10: EOFni */ +#define NGBE_TXD_FCOEF_EOF_A (0x3 << 10) /* 11: EOFa */ +#define NGBE_TXD_L4LEN_SHIFT 8 /* Adv ctxt L4LEN shift */ +#define NGBE_TXD_MSS_SHIFT 16 /* Adv ctxt MSS shift */ + +#define NGBE_TXD_OUTER_IPLEN_SHIFT 12 /* Adv ctxt OUTERIPLEN shift */ +#define NGBE_TXD_TUNNEL_LEN_SHIFT 21 /* Adv ctxt TUNNELLEN shift */ +#define NGBE_TXD_TUNNEL_TYPE_SHIFT 11 /* Adv Tx Desc Tunnel Type shift */ +#define NGBE_TXD_TUNNEL_DECTTL_SHIFT 27 /* Adv ctxt DECTTL shift */ +#define NGBE_TXD_TUNNEL_UDP (0x0ULL << NGBE_TXD_TUNNEL_TYPE_SHIFT) +#define NGBE_TXD_TUNNEL_GRE (0x1ULL << NGBE_TXD_TUNNEL_TYPE_SHIFT) + +/************ ngbe_type.h ************/ +/* Number of Transmit and Receive Descriptors must be a multiple of 8 */ +#define NGBE_REQ_TX_DESCRIPTOR_MULTIPLE 8 +#define NGBE_REQ_RX_DESCRIPTOR_MULTIPLE 8 +#define NGBE_REQ_TX_BUFFER_GRANULARITY 1024 + +/* Vlan-specific macros */ +#define NGBE_RX_DESC_SPECIAL_VLAN_MASK 0x0FFF /* VLAN ID in lower 12 bits */ +#define NGBE_RX_DESC_SPECIAL_PRI_MASK 0xE000 /* Priority in upper 3 bits */ +#define NGBE_RX_DESC_SPECIAL_PRI_SHIFT 0x000D /* Priority in upper 3 of 16 */ +#define NGBE_TX_DESC_SPECIAL_PRI_SHIFT NGBE_RX_DESC_SPECIAL_PRI_SHIFT + +/* Transmit Descriptor */ +union ngbe_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 ngbe_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 ngbe_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 NGBE_ATR_BUCKET_HASH_KEY 0x3DAD14E2 +#define NGBE_ATR_SIGNATURE_HASH_KEY 0x174D3614 + +/* Software ATR input stream values and masks */ +#define NGBE_ATR_HASH_MASK 0x7fff +#define NGBE_ATR_L4TYPE_MASK 0x3 +#define NGBE_ATR_L4TYPE_UDP 0x1 +#define NGBE_ATR_L4TYPE_TCP 0x2 +#define NGBE_ATR_L4TYPE_SCTP 0x3 +#define NGBE_ATR_L4TYPE_IPV6_MASK 0x4 +#define NGBE_ATR_L4TYPE_TUNNEL_MASK 0x10 +enum ngbe_atr_flow_type { + NGBE_ATR_FLOW_TYPE_IPV4 = 0x0, + NGBE_ATR_FLOW_TYPE_UDPV4 = 0x1, + NGBE_ATR_FLOW_TYPE_TCPV4 = 0x2, + NGBE_ATR_FLOW_TYPE_SCTPV4 = 0x3, + NGBE_ATR_FLOW_TYPE_IPV6 = 0x4, + NGBE_ATR_FLOW_TYPE_UDPV6 = 0x5, + NGBE_ATR_FLOW_TYPE_TCPV6 = 0x6, + NGBE_ATR_FLOW_TYPE_SCTPV6 = 0x7, + NGBE_ATR_FLOW_TYPE_TUNNELED_IPV4 = 0x10, + NGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4 = 0x11, + NGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4 = 0x12, + NGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4 = 0x13, + NGBE_ATR_FLOW_TYPE_TUNNELED_IPV6 = 0x14, + NGBE_ATR_FLOW_TYPE_TUNNELED_UDPV6 = 0x15, + NGBE_ATR_FLOW_TYPE_TUNNELED_TCPV6 = 0x16, + NGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV6 = 0x17, +}; + +/* Flow Director ATR input struct. */ +union ngbe_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 ngbe_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 NGBE_HI_MAX_BLOCK_BYTE_LENGTH 256 /* Num of bytes in range */ +#define NGBE_HI_MAX_BLOCK_DWORD_LENGTH 64 /* Num of dwords in range */ +#define NGBE_HI_COMMAND_TIMEOUT 5000 /* Process HI command limit */ +#define NGBE_HI_FLASH_ERASE_TIMEOUT 5000 /* Process Erase command limit */ +#define NGBE_HI_FLASH_UPDATE_TIMEOUT 5000 /* Process Update command limit */ +#define NGBE_HI_FLASH_VERIFY_TIMEOUT 60000 /* Process Apply command limit */ +#define NGBE_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 +#define FW_EEPROM_CHECK_STATUS 0xE9 +#define FW_PHY_SIGNAL 0xF0 + +/* Host Interface Command Structures */ +struct ngbe_hic_hdr { + u8 cmd; + u8 buf_len; + union { + u8 cmd_resv; + u8 ret_status; + } cmd_or_resp; + u8 checksum; +}; + +struct ngbe_hic_hdr2_req { + u8 cmd; + u8 buf_lenh; + u8 buf_lenl; + u8 checksum; +}; + +struct ngbe_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 ngbe_hic_hdr2 { + struct ngbe_hic_hdr2_req req; + struct ngbe_hic_hdr2_rsp rsp; +}; + +struct ngbe_hic_drv_info { + struct ngbe_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 ngbe_hic_read_shadow_ram { + union ngbe_hic_hdr2 hdr; + u32 address; + u16 length; + u16 pad2; + u16 data; + u16 pad3; +}; + +struct ngbe_hic_write_shadow_ram { + union ngbe_hic_hdr2 hdr; + u32 address; + u16 length; + u16 pad2; + u16 data; + u16 pad3; +}; + +struct ngbe_hic_disable_rxen { + struct ngbe_hic_hdr hdr; + u8 port_number; + u8 pad2; + u16 pad3; +}; + +struct ngbe_hic_reset { + struct ngbe_hic_hdr hdr; + u16 lan_id; + u16 reset_type; +}; + +struct ngbe_hic_phy_cfg { + struct ngbe_hic_hdr hdr; + u8 lan_id; + u8 phy_mode; + u16 phy_speed; +}; + +enum ngbe_module_id { + NGBE_MODULE_EEPROM = 0, + NGBE_MODULE_FIRMWARE, + NGBE_MODULE_HARDWARE, + NGBE_MODULE_PCIE +}; + +struct ngbe_hic_upg_start { + struct ngbe_hic_hdr hdr; + u8 module_id; + u8 pad2; + u16 pad3; +}; + +struct ngbe_hic_upg_write { + struct ngbe_hic_hdr hdr; + u8 data_len; + u8 eof_flag; + u16 check_sum; + u32 data[62]; +}; + +enum ngbe_upg_flag { + NGBE_RESET_NONE = 0, + NGBE_RESET_FIRMWARE, + NGBE_RELOAD_EEPROM, + NGBE_RESET_LAN +}; + +struct ngbe_hic_upg_verify { + struct ngbe_hic_hdr hdr; + u32 action_flag; +}; + +/* Number of 100 microseconds we wait for PCI Express master disable */ +#define NGBE_PCI_MASTER_DISABLE_TIMEOUT 800 + +/* Check whether address is multicast. This is little-endian specific check.*/ +#define NGBE_IS_MULTICAST(Address) \ + (bool)(((u8 *)(Address))[0] & ((u8)0x01)) + +/* Check whether an address is broadcast. */ +#define NGBE_IS_BROADCAST(Address) \ + ((((u8 *)(Address))[0] == ((u8)0xff)) && \ + (((u8 *)(Address))[1] == ((u8)0xff))) + +/* DCB registers */ +#define NGBE_DCB_MAX_TRAFFIC_CLASS 8 + +/* Power Manangbeent */ +/* DMA Coalescing configuration */ +struct ngbe_dmac_config { + u16 watchdog_timer; /* usec units */ + bool fcoe_en; + u32 link_speed; + u8 fcoe_tc; + u8 num_tcs; +}; + +/* Autonegotiation advertised speeds */ +typedef u32 ngbe_autoneg_advertised; +/* Link speed */ +#define NGBE_LINK_SPEED_UNKNOWN 0 +#define NGBE_LINK_SPEED_100_FULL 1 +#define NGBE_LINK_SPEED_1GB_FULL 2 +#define NGBE_LINK_SPEED_10_FULL 8 +#define NGBE_LINK_SPEED_AUTONEG (NGBE_LINK_SPEED_100_FULL | \ + NGBE_LINK_SPEED_1GB_FULL | \ + NGBE_LINK_SPEED_10_FULL) + +/* Physical layer type */ +typedef u32 ngbe_physical_layer; +#define NGBE_PHYSICAL_LAYER_UNKNOWN 0 +#define NGBE_PHYSICAL_LAYER_1000BASE_T 0x0002 +#define NGBE_PHYSICAL_LAYER_100BASE_TX 0x0004 +#define NGBE_PHYSICAL_LAYER_SFP_PLUS_CU 0x0008 +#define NGBE_PHYSICAL_LAYER_1000BASE_KX 0x0200 +#define NGBE_PHYSICAL_LAYER_1000BASE_BX 0x0400 +#define NGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA 0x2000 +#define NGBE_PHYSICAL_LAYER_1000BASE_SX 0x4000 + +/* Special PHY Init Routine */ +#define NGBE_PHY_INIT_OFFSET_NL 0x002B +#define NGBE_PHY_INIT_END_NL 0xFFFF +#define NGBE_CONTROL_MASK_NL 0xF000 +#define NGBE_DATA_MASK_NL 0x0FFF +#define NGBE_CONTROL_SHIFT_NL 12 +#define NGBE_DELAY_NL 0 +#define NGBE_DATA_NL 1 +#define NGBE_CONTROL_NL 0x000F +#define NGBE_CONTROL_EOL_NL 0x0FFF +#define NGBE_CONTROL_SOL_NL 0x0000 + +/* ethtool */ +#define SPEED_10 10 +#define SPEED_100 100 +#define SPEED_1000 1000 + +/* Flow Control Data Sheet defined values + * Calculation and defines taken from 802.1bb Annex O + */ + +/* BitTimes (BT) conversion */ +#define NGBE_BT2KB(BT) ((BT + (8 * 1024 - 1)) / (8 * 1024)) +#define NGBE_B2BT(BT) (BT * 8) + +/* Calculate Delay to respond to PFC */ +#define NGBE_PFC_D 672 + +/* Calculate Cable Delay */ +#define NGBE_CABLE_DC 5556 /* Delay Copper */ +#define NGBE_CABLE_DO 5000 /* Delay Optical */ + +/* Calculate Interface Delay X540 */ +#define NGBE_PHY_DC 25600 /* Delay 10G BASET */ +#define NGBE_MAC_DC 8192 /* Delay Copper XAUI interface */ +#define NGBE_XAUI_DC (2 * 2048) /* Delay Copper Phy */ + +#define NGBE_ID_X540 (NGBE_MAC_DC + NGBE_XAUI_DC + NGBE_PHY_DC) + +/* Calculate Interface Delay */ +#define NGBE_PHY_D 12800 +#define NGBE_MAC_D 4096 +#define NGBE_XAUI_D (2 * 1024) + +#define NGBE_ID (NGBE_MAC_D + NGBE_XAUI_D + NGBE_PHY_D) + +/* Calculate Delay incurred from higher layer */ +#define NGBE_HD 6144 + +/* Calculate PCI Bus delay for low thresholds */ +#define NGBE_PCI_DELAY 10000 + +/* Calculate X540 delay value in bit times */ +#define NGBE_DV_X540(_max_frame_link, _max_frame_tc) \ + ((36 * \ + (NGBE_B2BT(_max_frame_link) + \ + NGBE_PFC_D + \ + (2 * NGBE_CABLE_DC) + \ + (2 * NGBE_ID_X540) + \ + NGBE_HD) / 25 + 1) + \ + 2 * NGBE_B2BT(_max_frame_tc)) + + +/* Calculate delay value in bit times */ +#define NGBE_DV(_max_frame_link, _max_frame_tc) \ + ((36 * \ + (NGBE_B2BT(_max_frame_link) + \ + NGBE_PFC_D + \ + (2 * NGBE_CABLE_DC) + \ + (2 * NGBE_ID) + \ + NGBE_HD) / 25 + 1) + \ + 2 * NGBE_B2BT(_max_frame_tc)) + +/* Calculate low threshold delay values */ +#define NGBE_LOW_DV_X540(_max_frame_tc) \ + (2 * NGBE_B2BT(_max_frame_tc) + \ + (36 * NGBE_PCI_DELAY / 25) + 1) + +#define NGBE_LOW_DV(_max_frame_tc) \ + (2 * NGBE_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 ngbe_fcoe_boot_status { + ngbe_fcoe_bootstatus_disabled = 0, + ngbe_fcoe_bootstatus_enabled = 1, + ngbe_fcoe_bootstatus_unavailable = 0xFFFF +}; + +enum ngbe_eeprom_type { + ngbe_eeprom_uninitialized = 0, + ngbe_eeprom_spi, + ngbe_flash, + ngbe_eeprom_none /* No NVM support */ +}; + +enum ngbe_phy_type { + ngbe_phy_unknown = 0, + ngbe_phy_none, + ngbe_phy_internal, + ngbe_phy_m88e1512, + ngbe_phy_m88e1512_sfi, + ngbe_phy_yt8521s, + ngbe_phy_yt8521s_sfi, + ngbe_phy_zte, + ngbe_phy_sfp_passive_tyco, + ngbe_phy_sfp_passive_unknown, + ngbe_phy_sfp_active_unknown, + ngbe_phy_sfp_avago, + ngbe_phy_sfp_ftl, + ngbe_phy_sfp_ftl_active, + ngbe_phy_sfp_unknown, + ngbe_phy_sfp_intel, + ngbe_phy_sfp_unsupported, /*Enforce bit set with unsupported module*/ + ngbe_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 ngbe_sfp_type { + ngbe_sfp_type_da_cu = 0, + ngbe_sfp_type_sr = 1, + ngbe_sfp_type_lr = 2, + ngbe_sfp_type_da_cu_core0 = 3, + ngbe_sfp_type_da_cu_core1 = 4, + ngbe_sfp_type_srlr_core0 = 5, + ngbe_sfp_type_srlr_core1 = 6, + ngbe_sfp_type_da_act_lmt_core0 = 7, + ngbe_sfp_type_da_act_lmt_core1 = 8, + ngbe_sfp_type_1g_cu_core0 = 9, + ngbe_sfp_type_1g_cu_core1 = 10, + ngbe_sfp_type_1g_sx_core0 = 11, + ngbe_sfp_type_1g_sx_core1 = 12, + ngbe_sfp_type_1g_lx_core0 = 13, + ngbe_sfp_type_1g_lx_core1 = 14, + ngbe_sfp_type_not_present = 0xFFFE, + ngbe_sfp_type_unknown = 0xFFFF +}; + +enum ngbe_media_type { + ngbe_media_type_unknown = 0, + ngbe_media_type_fiber, + ngbe_media_type_copper, + ngbe_media_type_backplane, + ngbe_media_type_virtual +}; + +/* Flow Control Settings */ +enum ngbe_fc_mode { + ngbe_fc_none = 0, + ngbe_fc_rx_pause, + ngbe_fc_tx_pause, + ngbe_fc_full, + ngbe_fc_default +}; + +/* Smart Speed Settings */ +#define NGBE_SMARTSPEED_MAX_RETRIES 3 +enum ngbe_smart_speed { + ngbe_smart_speed_auto = 0, + ngbe_smart_speed_on, + ngbe_smart_speed_off +}; + +/* PCI bus types */ +enum ngbe_bus_type { + ngbe_bus_type_unknown = 0, + ngbe_bus_type_pci, + ngbe_bus_type_pcix, + ngbe_bus_type_pci_express, + ngbe_bus_type_internal, + ngbe_bus_type_reserved +}; + +/* PCI bus speeds */ +enum ngbe_bus_speed { + ngbe_bus_speed_unknown = 0, + ngbe_bus_speed_33 = 33, + ngbe_bus_speed_66 = 66, + ngbe_bus_speed_100 = 100, + ngbe_bus_speed_120 = 120, + ngbe_bus_speed_133 = 133, + ngbe_bus_speed_2500 = 2500, + ngbe_bus_speed_5000 = 5000, + ngbe_bus_speed_8000 = 8000, + ngbe_bus_speed_reserved +}; + +/* PCI bus widths */ +enum ngbe_bus_width { + ngbe_bus_width_unknown = 0, + ngbe_bus_width_pcie_x1 = 1, + ngbe_bus_width_pcie_x2 = 2, + ngbe_bus_width_pcie_x4 = 4, + ngbe_bus_width_pcie_x8 = 8, + ngbe_bus_width_32 = 32, + ngbe_bus_width_64 = 64, + ngbe_bus_width_reserved +}; + +struct ngbe_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 ngbe_bus_info { + enum ngbe_bus_speed speed; + enum ngbe_bus_width width; + enum ngbe_bus_type type; + + u16 func; + u16 lan_id; +}; + +/* Flow control parameters */ +struct ngbe_fc_info { + u32 high_water; /* Flow Ctrl High-water */ + u32 low_water; /* 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 ngbe_fc_mode current_mode; /* FC mode in effect */ + enum ngbe_fc_mode requested_mode; /* FC mode requested by caller */ +}; + +/* Statistics counters collected by the MAC */ +struct ngbe_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 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 ngbe_hw; + +/* iterator type for walking multicast address lists */ +typedef u8* (*ngbe_mc_addr_itr) (struct ngbe_hw *hw, u8 **mc_addr_ptr, + u32 *vmdq); + +/* Function pointer table */ +struct ngbe_eeprom_operations { + s32 (*init_params)(struct ngbe_hw *); + s32 (*read)(struct ngbe_hw *, u16, u16 *); + s32 (*read_buffer)(struct ngbe_hw *, u16, u16, u16 *); + s32 (*read32)(struct ngbe_hw *, u16, u32 *); + s32 (*write)(struct ngbe_hw *, u16, u16); + s32 (*write_buffer)(struct ngbe_hw *, u16, u16, u16 *); + s32 (*validate_checksum)(struct ngbe_hw *, u16 *); + s32 (*update_checksum)(struct ngbe_hw *); + s32 (*calc_checksum)(struct ngbe_hw *); + s32 (*eeprom_chksum_cap_st)(struct ngbe_hw *, u16, u32 *); + s32 (*phy_signal_set)(struct ngbe_hw *); +}; + +struct ngbe_flash_operations { + s32 (*init_params)(struct ngbe_hw *); + s32 (*read_buffer)(struct ngbe_hw *, u32, u32, u32 *); + s32 (*write_buffer)(struct ngbe_hw *, u32, u32, u32 *); +}; + +struct ngbe_mac_operations { + s32 (*init_hw)(struct ngbe_hw *); + s32 (*reset_hw)(struct ngbe_hw *); + s32 (*start_hw)(struct ngbe_hw *); + s32 (*clear_hw_cntrs)(struct ngbe_hw *); + enum ngbe_media_type (*get_media_type)(struct ngbe_hw *); + s32 (*get_mac_addr)(struct ngbe_hw *, u8 *); + s32 (*get_device_caps)(struct ngbe_hw *, u16 *); + s32 (*stop_adapter)(struct ngbe_hw *); + s32 (*get_bus_info)(struct ngbe_hw *); + void (*set_lan_id)(struct ngbe_hw *); + s32 (*enable_rx_dma)(struct ngbe_hw *, u32); + s32 (*disable_sec_rx_path)(struct ngbe_hw *); + s32 (*enable_sec_rx_path)(struct ngbe_hw *); + s32 (*acquire_swfw_sync)(struct ngbe_hw *, u32); + void (*release_swfw_sync)(struct ngbe_hw *, u32); + + /* Link */ + void (*disable_tx_laser)(struct ngbe_hw *); + void (*enable_tx_laser)(struct ngbe_hw *); + void (*flap_tx_laser)(struct ngbe_hw *); + s32 (*setup_link)(struct ngbe_hw *, u32, bool); + s32 (*setup_mac_link)(struct ngbe_hw *, u32, bool); + s32 (*check_link)(struct ngbe_hw *, u32 *, bool *, bool); + s32 (*get_link_capabilities)(struct ngbe_hw *, u32 *, + bool *); + void (*set_rate_select_speed)(struct ngbe_hw *, u32); + + /* Packet Buffer manipulation */ + void (*setup_rxpba)(struct ngbe_hw *, int, u32, int); + + /* LED */ + s32 (*led_on)(struct ngbe_hw *, u32); + s32 (*led_off)(struct ngbe_hw *, u32); + + /* RAR, Multicast, VLAN */ + s32 (*set_rar)(struct ngbe_hw *, u32, u8 *, u64, u32); + s32 (*clear_rar)(struct ngbe_hw *, u32); + s32 (*insert_mac_addr)(struct ngbe_hw *, u8 *, u32); + s32 (*set_vmdq)(struct ngbe_hw *, u32, u32); + s32 (*set_vmdq_san_mac)(struct ngbe_hw *, u32); + s32 (*clear_vmdq)(struct ngbe_hw *, u32, u32); + s32 (*init_rx_addrs)(struct ngbe_hw *); + s32 (*update_uc_addr_list)(struct ngbe_hw *, u8 *, u32, + ngbe_mc_addr_itr); + s32 (*update_mc_addr_list)(struct ngbe_hw *, u8 *, u32, + ngbe_mc_addr_itr, bool clear); + s32 (*enable_mc)(struct ngbe_hw *); + s32 (*disable_mc)(struct ngbe_hw *); + s32 (*clear_vfta)(struct ngbe_hw *); + s32 (*set_vfta)(struct ngbe_hw *, u32, u32, bool); + s32 (*set_vlvf)(struct ngbe_hw *, u32, u32, bool, bool *); + s32 (*init_uta_tables)(struct ngbe_hw *); + void (*set_mac_anti_spoofing)(struct ngbe_hw *, bool, int); + void (*set_vlan_anti_spoofing)(struct ngbe_hw *, bool, int); + + /* Flow Control */ + s32 (*fc_enable)(struct ngbe_hw *); + s32 (*setup_fc)(struct ngbe_hw *); + + /* Manageability interface */ + s32 (*set_fw_drv_ver)(struct ngbe_hw *, u8, u8, u8, u8); + s32 (*get_thermal_sensor_data)(struct ngbe_hw *); + s32 (*init_thermal_sensor_thresh)(struct ngbe_hw *hw); + void (*get_rtrup2tc)(struct ngbe_hw *hw, u8 *map); + void (*disable_rx)(struct ngbe_hw *hw); + void (*enable_rx)(struct ngbe_hw *hw); + void (*set_source_address_pruning)(struct ngbe_hw *, bool, + unsigned int); + void (*set_ethertype_anti_spoofing)(struct ngbe_hw *, bool, int); + s32 (*dmac_config)(struct ngbe_hw *hw); + s32 (*setup_eee)(struct ngbe_hw *hw, bool enable_eee); +}; + +struct ngbe_phy_operations { + s32 (*identify)(struct ngbe_hw *); + s32 (*identify_sfp)(struct ngbe_hw *); + s32 (*init)(struct ngbe_hw *); + s32 (*reset)(struct ngbe_hw *); + s32 (*read_reg)(struct ngbe_hw *, u32, u32, u16 *); + s32 (*write_reg)(struct ngbe_hw *, u32, u32, u16); + s32 (*read_reg_mdi)(struct ngbe_hw *, u32, u32, u16 *); + s32 (*write_reg_mdi)(struct ngbe_hw *, u32, u32, u16); + u32 (*setup_link)(struct ngbe_hw *, u32, bool); + s32 (*setup_internal_link)(struct ngbe_hw *); + u32 (*setup_link_speed)(struct ngbe_hw *, u32, bool); + s32 (*check_link)(struct ngbe_hw *, u32 *, bool *); + s32 (*check_overtemp)(struct ngbe_hw *); + s32 (*check_event)(struct ngbe_hw *); + s32 (*get_adv_pause)(struct ngbe_hw *, u8 *); + s32 (*get_lp_adv_pause)(struct ngbe_hw *, u8 *); + s32 (*set_adv_pause)(struct ngbe_hw *, u16); + s32 (*setup_once)(struct ngbe_hw *); +}; + +struct ngbe_eeprom_info { + struct ngbe_eeprom_operations ops; + enum ngbe_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 ngbe_flash_info { + struct ngbe_flash_operations ops; + u32 semaphore_delay; + u32 dword_size; + u16 address_bits; +}; + +#define NGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01 +struct ngbe_mac_info { + struct ngbe_mac_operations ops; + u8 addr[NGBE_ETH_LENGTH_OF_ADDRESS]; + u8 perm_addr[NGBE_ETH_LENGTH_OF_ADDRESS]; + u8 san_addr[NGBE_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 NGBE_MAX_MTA 128 +#define NGBE_MAX_VFTA_ENTRIES 128 + u32 mta_shadow[NGBE_MAX_MTA]; + s32 mc_filter_type; + u32 mcft_size; + u32 vft_shadow[NGBE_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 ngbe_thermal_sensor_data thermal_sensor_data; + bool thermal_sensor_enabled; + struct ngbe_dmac_config dmac_config; + bool set_lben; + bool autoneg; +}; + +struct ngbe_phy_info { + struct ngbe_phy_operations ops; + enum ngbe_phy_type type; + u32 addr; + u32 id; + enum ngbe_sfp_type sfp_type; + bool sfp_setup_needed; + u32 revision; + enum ngbe_media_type media_type; + u32 phy_semaphore_mask; + u8 lan_id; /* to be delete */ + ngbe_autoneg_advertised autoneg_advertised; + enum ngbe_smart_speed smart_speed; + bool smart_speed_active; + bool multispeed_fiber; + bool reset_if_overtemp; + ngbe_physical_layer link_mode; +}; + +#include "ngbe_mbx.h" + +struct ngbe_mbx_operations { + void (*init_params)(struct ngbe_hw *hw); + s32 (*read)(struct ngbe_hw *, u32 *, u16, u16); + s32 (*write)(struct ngbe_hw *, u32 *, u16, u16); + s32 (*read_posted)(struct ngbe_hw *, u32 *, u16, u16); + s32 (*write_posted)(struct ngbe_hw *, u32 *, u16, u16); + s32 (*check_for_msg)(struct ngbe_hw *, u16); + s32 (*check_for_ack)(struct ngbe_hw *, u16); + s32 (*check_for_rst)(struct ngbe_hw *, u16); +}; + +struct ngbe_mbx_stats { + u32 msgs_tx; + u32 msgs_rx; + + u32 acks; + u32 reqs; + u32 rsts; +}; + +struct ngbe_mbx_info { + struct ngbe_mbx_operations ops; + struct ngbe_mbx_stats stats; + u32 timeout; + u32 udelay; + u32 v2p_mailbox; + u16 size; +}; + +enum ngbe_reset_type { + NGBE_LAN_RESET = 0, + NGBE_SW_RESET, + NGBE_GLOBAL_RESET +}; + +enum ngbe_link_status { + NGBE_LINK_STATUS_NONE = 0, + NGBE_LINK_STATUS_KX, + NGBE_LINK_STATUS_KX4 +}; + +struct ngbe_hw { + u8 __iomem *hw_addr; + void *back; + struct ngbe_mac_info mac; + struct ngbe_addr_filter_info addr_ctrl; + struct ngbe_fc_info fc; + struct ngbe_phy_info phy; + struct ngbe_eeprom_info eeprom; + struct ngbe_flash_info flash; + struct ngbe_bus_info bus; + struct ngbe_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 ngbe_reset_type reset_type; + bool force_full_reset; + bool allow_unsupported_sfp; + bool wol_enabled; + enum ngbe_link_status link_status; + u16 tpid[8]; +}; + +#define TCALL(hw, func, args...) (((hw)->func != NULL) \ + ? (hw)->func((hw), ##args) : NGBE_NOT_IMPLEMENTED) + +/* Error Codes */ +#define NGBE_OK 0 +#define NGBE_ERR 100 +#define NGBE_NOT_IMPLEMENTED 0x7FFFFFFF +/* (-NGBE_ERR, NGBE_ERR): reserved for non-ngbe defined error code */ +#define NGBE_ERR_NOSUPP -(NGBE_ERR+0) +#define NGBE_ERR_EEPROM -(NGBE_ERR+1) +#define NGBE_ERR_EEPROM_CHECKSUM -(NGBE_ERR+2) +#define NGBE_ERR_PHY -(NGBE_ERR+3) +#define NGBE_ERR_CONFIG -(NGBE_ERR+4) +#define NGBE_ERR_PARAM -(NGBE_ERR+5) +#define NGBE_ERR_MAC_TYPE -(NGBE_ERR+6) +#define NGBE_ERR_UNKNOWN_PHY -(NGBE_ERR+7) +#define NGBE_ERR_LINK_SETUP -(NGBE_ERR+8) +#define NGBE_ERR_ADAPTER_STOPPED -(NGBE_ERR+9) +#define NGBE_ERR_INVALID_MAC_ADDR -(NGBE_ERR+10) +#define NGBE_ERR_DEVICE_NOT_SUPPORTED -(NGBE_ERR+11) +#define NGBE_ERR_MASTER_REQUESTS_PENDING -(NGBE_ERR+12) +#define NGBE_ERR_INVALID_LINK_SETTINGS -(NGBE_ERR+13) +#define NGBE_ERR_AUTONEG_NOT_COMPLETE -(NGBE_ERR+14) +#define NGBE_ERR_RESET_FAILED -(NGBE_ERR+15) +#define NGBE_ERR_SWFW_SYNC -(NGBE_ERR+16) +#define NGBE_ERR_PHY_ADDR_INVALID -(NGBE_ERR+17) +#define NGBE_ERR_I2C -(NGBE_ERR+18) +#define NGBE_ERR_SFP_NOT_SUPPORTED -(NGBE_ERR+19) +#define NGBE_ERR_SFP_NOT_PRESENT -(NGBE_ERR+20) +#define NGBE_ERR_SFP_NO_INIT_SEQ_PRESENT -(NGBE_ERR+21) +#define NGBE_ERR_NO_SAN_ADDR_PTR -(NGBE_ERR+22) +#define NGBE_ERR_FDIR_REINIT_FAILED -(NGBE_ERR+23) +#define NGBE_ERR_EEPROM_VERSION -(NGBE_ERR+24) +#define NGBE_ERR_NO_SPACE -(NGBE_ERR+25) +#define NGBE_ERR_OVERTEMP -(NGBE_ERR+26) +#define NGBE_ERR_UNDERTEMP -(NGBE_ERR+27) +#define NGBE_ERR_FC_NOT_NEGOTIATED -(NGBE_ERR+28) +#define NGBE_ERR_FC_NOT_SUPPORTED -(NGBE_ERR+29) +#define NGBE_ERR_SFP_SETUP_NOT_COMPLETE -(NGBE_ERR+30) +#define NGBE_ERR_PBA_SECTION -(NGBE_ERR+31) +#define NGBE_ERR_INVALID_ARGUMENT -(NGBE_ERR+32) +#define NGBE_ERR_HOST_INTERFACE_COMMAND -(NGBE_ERR+33) +#define NGBE_ERR_OUT_OF_MEM -(NGBE_ERR+34) +#define NGBE_ERR_FEATURE_NOT_SUPPORTED -(NGBE_ERR+36) +#define NGBE_ERR_EEPROM_PROTECTED_REGION -(NGBE_ERR+37) +#define NGBE_ERR_FDIR_CMD_INCOMPLETE -(NGBE_ERR+38) +#define NGBE_ERR_FLASH_LOADING_FAILED -(NGBE_ERR+39) +#define NGBE_ERR_XPCS_POWER_UP_FAILED -(NGBE_ERR+40) +#define NGBE_ERR_FW_RESP_INVALID -(NGBE_ERR+41) +#define NGBE_ERR_PHY_INIT_NOT_DONE -(NGBE_ERR+42) +#define NGBE_ERR_TIMEOUT -(NGBE_ERR+43) +#define NGBE_ERR_TOKEN_RETRY -(NGBE_ERR+44) +#define NGBE_ERR_REGISTER -(NGBE_ERR+45) +#define NGBE_ERR_MBX -(NGBE_ERR+46) +#define NGBE_ERR_MNG_ACCESS_FAILED -(NGBE_ERR+47) +#define NGBE_ERR_PHY_TYPE -(NGBE_ERR+48) +#define NGBE_ERR_PHY_TIMEOUT -(NGBE_ERR+49) + +/** + * register operations + **/ +/* read register */ +#define NGBE_DEAD_READ_RETRIES 10 +#define NGBE_DEAD_READ_REG 0xdeadbeefU +#define NGBE_DEAD_READ_REG64 0xdeadbeefdeadbeefULL + +#define NGBE_FAILED_READ_REG 0xffffffffU +#define NGBE_FAILED_READ_REG64 0xffffffffffffffffULL + +static inline bool NGBE_REMOVED(void __iomem *addr) +{ + return unlikely(!addr); +} + +static inline u32 +ngbe_rd32(u8 __iomem *base) +{ + return readl(base); +} + +static inline u32 +rd32(struct ngbe_hw *hw, u32 reg) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + u32 val = NGBE_FAILED_READ_REG; + + if (unlikely(!base)) + return val; + + val = ngbe_rd32(base + reg); + + return val; +} +#define rd32a(a, reg, offset) ( \ + rd32((a), (reg) + ((offset) << 2))) + +static inline u32 +rd32m(struct ngbe_hw *hw, u32 reg, u32 mask) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + u32 val = NGBE_FAILED_READ_REG; + + if (unlikely(!base)) + return val; + + val = ngbe_rd32(base + reg); + if (unlikely(val == NGBE_FAILED_READ_REG)) + return val; + + return val & mask; +} + +/* write register */ +static inline void +ngbe_wr32(u8 __iomem *base, u32 val) +{ + writel(val, base); +} + +static inline void +wr32(struct ngbe_hw *hw, u32 reg, u32 val) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + + if (unlikely(!base)) + return; + + ngbe_wr32(base + reg, val); +} +#define wr32a(a, reg, off, val) \ + wr32((a), (reg) + ((off) << 2), (val)) + +static inline void +wr32m(struct ngbe_hw *hw, u32 reg, u32 mask, u32 field) +{ + u8 __iomem *base = READ_ONCE(hw->hw_addr); + u32 val; + + if (unlikely(!base)) + return; + + val = ngbe_rd32(base + reg); + if (unlikely(val == NGBE_FAILED_READ_REG)) + return; + + val = ((val & ~mask) | (field & mask)); + ngbe_wr32(base + reg, val); +} + +/* poll register */ +#define NGBE_MDIO_TIMEOUT 1000 +#define NGBE_I2C_TIMEOUT 1000 +#define NGBE_SPI_TIMEOUT 1000 +static inline s32 +po32m(struct ngbe_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 : NGBE_ERR_TIMEOUT); +} + +#define NGBE_WRITE_FLUSH(H) rd32(H, NGBE_MIS_PWR) + +#endif /* _NGBE_TYPE_H_ */ -- 2.25.1

1 1

[PATCH openEuler-1.0-LTS] ras: report cpu logical index to userspace in arm event
by Yang Yingliang 03 Dec '21

03 Dec '21

From: Lostwayzxc <luoshengwei(a)huawei.com> kunpeng inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4IG00?from=project-issue CVE: NA When the arm event is reported, the rasdaemon needs to know the cpu logical index, but there is only mpidr without mapping between it and cpu logical index. Since the kernel has saved the mapping, get the logical index by function get_logical_index() and report it directly to userspace via perf i/f. Signed-off-by: Lostwayzxc <luoshengwei(a)huawei.com> Reviewed-by: Lv Ying <lvying6(a)huawei.com> Reviewed-by: Xie XiuQi <xiexiuqi(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/ras/ras.c | 8 +++++++- include/linux/ras.h | 11 +++++++++++ include/ras/ras_event.h | 10 +++++++--- 3 files changed, 25 insertions(+), 4 deletions(-) diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c index 9302ed7f42588..a526f124a5ff8 100644 --- a/drivers/ras/ras.c +++ b/drivers/ras/ras.c @@ -32,6 +32,7 @@ void log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev) struct cper_arm_err_info *err_info; struct cper_arm_ctx_info *ctx_info; int n, sz; + int cpu; pei_len = sizeof(struct cper_arm_err_info) * err->err_info_num; pei_err = (u8 *)err + sizeof(struct cper_sec_proc_arm); @@ -58,8 +59,13 @@ void log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev) } ven_err_data = (u8 *)ctx_info; + cpu = GET_LOGICAL_INDEX(err->mpidr); + /* when the return value is invalid, set cpu index to a large integer */ + if (cpu < 0) + cpu = 0xFFFF; + trace_arm_event(err, pei_err, pei_len, ctx_err, ctx_len, - ven_err_data, vsei_len, sev); + ven_err_data, vsei_len, sev, cpu); } static int __init ras_init(void) diff --git a/include/linux/ras.h b/include/linux/ras.h index 3431b4a5fa42d..e5ec31ad7a132 100644 --- a/include/linux/ras.h +++ b/include/linux/ras.h @@ -40,4 +40,15 @@ static inline void log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev) { return; } #endif +#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) +#include <asm/smp_plat.h> +/* + * Include ARM specific SMP header which provides a function mapping mpidr to + * cpu logical index. + */ +#define GET_LOGICAL_INDEX(mpidr) get_logical_index(mpidr & MPIDR_HWID_BITMASK) +#else +#define GET_LOGICAL_INDEX(mpidr) -EINVAL +#endif /* CONFIG_ARM || CONFIG_ARM64 */ + #endif /* __RAS_H__ */ diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h index 7c8cb123ba32d..2d6a662886e6d 100644 --- a/include/ras/ras_event.h +++ b/include/ras/ras_event.h @@ -182,9 +182,10 @@ TRACE_EVENT(arm_event, const u32 ctx_len, const u8 *oem, const u32 oem_len, - u8 sev), + u8 sev, + int cpu), - TP_ARGS(proc, pei_err, pei_len, ctx_err, ctx_len, oem, oem_len, sev), + TP_ARGS(proc, pei_err, pei_len, ctx_err, ctx_len, oem, oem_len, sev, cpu), TP_STRUCT__entry( __field(u64, mpidr) @@ -199,6 +200,7 @@ TRACE_EVENT(arm_event, __field(u32, oem_len) __dynamic_array(u8, buf2, oem_len) __field(u8, sev) + __field(int, cpu) ), TP_fast_assign( @@ -225,11 +227,13 @@ TRACE_EVENT(arm_event, __entry->oem_len = oem_len; memcpy(__get_dynamic_array(buf2), oem, oem_len); __entry->sev = sev; + __entry->cpu = cpu; ), - TP_printk("error: %d; affinity level: %d; MPIDR: %016llx; MIDR: %016llx; " + TP_printk("cpu: %d; error: %d; affinity level: %d; MPIDR: %016llx; MIDR: %016llx; " "running state: %d; PSCI state: %d; " "%s: %d; %s: %s; %s: %d; %s: %s; %s: %d; %s: %s", + __entry->cpu, __entry->sev, __entry->affinity, __entry->mpidr, __entry->midr, __entry->running_state, __entry->psci_state, -- 2.25.1

1 0

【Meeting Notice】openEuler kernel 技术分享第十五期 & 双周例会 Time: 2021-12-03 14:00-16:30
by Meeting Book 02 Dec '21

02 Dec '21

1 0

[PATCH openEuler-1.0-LTS 1/2] hugetlb: before freeing hugetlb page set dtor to appropriate value
by Yang Yingliang 02 Dec '21

02 Dec '21

From: Mike Kravetz <mike.kravetz(a)oracle.com> mainline inclusion from mainline-5.15-rc1 commit e32d20c0c88b1cd0a44f882c4f0eb2f536363d1b category: bugfix bugzilla: 180680 CVE: NA --------------------------- When removing a hugetlb page from the pool the ref count is set to one (as the free page has no ref count) and compound page destructor is set to NULL_COMPOUND_DTOR. Since a subsequent call to free the hugetlb page will call __free_pages for non-gigantic pages and free_gigantic_page for gigantic pages the destructor is not used. However, consider the following race with code taking a speculative reference on the page: Thread 0 Thread 1 -------- -------- remove_hugetlb_page set_page_refcounted(page); set_compound_page_dtor(page, NULL_COMPOUND_DTOR); get_page_unless_zero(page) __update_and_free_page __free_pages(page, huge_page_order(h)); /* Note that __free_pages() will simply drop the reference to the page. */ put_page(page) __put_compound_page() destroy_compound_page NULL_COMPOUND_DTOR BUG: kernel NULL pointer dereference, address: 0000000000000000 To address this race, set the dtor to the normal compound page dtor for non-gigantic pages. The dtor for gigantic pages does not matter as gigantic pages are changed from a compound page to 'just a group of pages' before freeing. Hence, the destructor is not used. Link: https://lkml.kernel.org/r/20210809184832.18342-4-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz(a)oracle.com> Reviewed-by: Muchun Song <songmuchun(a)bytedance.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: David Hildenbrand <david(a)redhat.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Naoya Horiguchi <naoya.horiguchi(a)linux.dev> Cc: Mina Almasry <almasrymina(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Conflicts: mm/hugetlb.c Signed-off-by: Chen Wandun <chenwandun(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/hugetlb.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 5190154de3b09..2f65dad443ab3 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1213,12 +1213,30 @@ static void update_and_free_page(struct hstate *h, struct page *page) 1 << PG_writeback); } VM_BUG_ON_PAGE(hugetlb_cgroup_from_page(page), page); - set_compound_page_dtor(page, NULL_COMPOUND_DTOR); + /* + * Very subtle + * + * For non-gigantic pages set the destructor to the normal compound + * page dtor. This is needed in case someone takes an additional + * temporary ref to the page, and freeing is delayed until they drop + * their reference. + * + * For gigantic pages set the destructor to the null dtor. This + * destructor will never be called. Before freeing the gigantic + * page destroy_compound_gigantic_page will turn the compound page + * into a simple group of pages. After this the destructor does not + * apply. + * + * This handles the case where more than one ref is held when and + * after update_and_free_page is called. + */ set_page_refcounted(page); if (hstate_is_gigantic(h)) { + set_compound_page_dtor(page, NULL_COMPOUND_DTOR); destroy_compound_gigantic_page(page, huge_page_order(h)); free_gigantic_page(page, huge_page_order(h)); } else { + set_compound_page_dtor(page, COMPOUND_PAGE_DTOR); __free_pages(page, huge_page_order(h)); } } -- 2.25.1

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kernel sig申报一个议题：openEuler 22.03增加osnoise/timerlat trace系统/硬件底噪干扰调测工具
by Wangshaobo (bobo) 02 Dec '21

02 Dec '21

议题：openEuler 22.03增加osnoise/timerlat trace系统/硬件底噪干扰调测工具简介：跟踪系统/硬件底噪调测工具，保障高性能应用的低延时，osnoise/timerlat可以针对多核进行较高精度的硬件时延和系统时延探测。 https://gitee.com/openeuler/kernel/issues/I4G64B?from=project-issue

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