On Sun, Feb 07, 2021 at 08:15:09AM +0000, liweihang wrote:
On 2021/2/7 15:52, chenglang wrote:
On 2021/2/4 14:23, Weihang Li wrote:
From: Lang Cheng chenglang@huawei.com
HIP08/09 only supports CMDQ in non-interrupt mode, and the firmware always ignores the flag to indicate the mode. Therefore, remove the dead code.
Fixes: a04ff739f2a9 ("RDMA/hns: Add command queue support for hip08 RoCE driver") Signed-off-by: Lang Cheng chenglang@huawei.com Signed-off-by: Weihang Li liweihang@huawei.com
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 24 ++++++++---------------- drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 2 -- 2 files changed, 8 insertions(+), 18 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 7a5a41d..260c17c 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -1197,8 +1197,7 @@ static void hns_roce_cmq_setup_basic_desc(struct hns_roce_cmq_desc *desc, { memset((void *)desc, 0, sizeof(struct hns_roce_cmq_desc)); desc->opcode = cpu_to_le16(opcode);
- desc->flag =
cpu_to_le16(HNS_ROCE_CMD_FLAG_NO_INTR | HNS_ROCE_CMD_FLAG_IN);
- desc->flag = cpu_to_le16(HNS_ROCE_CMD_FLAG_IN); if (is_read) desc->flag |= cpu_to_le16(HNS_ROCE_CMD_FLAG_WR); else
@@ -1275,18 +1274,12 @@ static int __hns_roce_cmq_send(struct hns_roce_dev *hr_dev, /* Write to hardware */ roce_write(hr_dev, ROCEE_TX_CMQ_TAIL_REG, csq->next_to_use);
- /*
* If the command is sync, wait for the firmware to write back,* if multi descriptors to be sent, use the first one to check*/- if (le16_to_cpu(desc->flag) & HNS_ROCE_CMD_FLAG_NO_INTR) {
do {if (hns_roce_cmq_csq_done(hr_dev))break;udelay(1);timeout++;} while (timeout < priv->cmq.tx_timeout);- }
do {
if (hns_roce_cmq_csq_done(hr_dev))break;udelay(1);timeout++;} while (timeout < priv->cmq.tx_timeout);
if (hns_roce_cmq_csq_done(hr_dev)) { handle = 0;
@@ -1626,8 +1619,7 @@ static int hns_roce_set_vf_switch_param(struct hns_roce_dev *hr_dev, int vf_id) if (ret) return ret;
- desc.flag =
cpu_to_le16(HNS_ROCE_CMD_FLAG_NO_INTR | HNS_ROCE_CMD_FLAG_IN);The old firmware needs this redundant flag, it is best cleaned up after the firmware version is released.
Thanks.
Got it, I will drop this one from the series.
And how will it work new kernel with old FW? Or isn't it possible and all users must upgrade their kernel/FW at the same time?
Thanks
Thanks Weihang
- desc.flag = cpu_to_le16(HNS_ROCE_CMD_FLAG_IN); desc.flag &= cpu_to_le16(~HNS_ROCE_CMD_FLAG_WR); roce_set_bit(swt->cfg, VF_SWITCH_DATA_CFG_ALW_LPBK_S, 1); roce_set_bit(swt->cfg, VF_SWITCH_DATA_CFG_ALW_LCL_LPBK_S, 0);
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h index 9f97e32..986a287 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h @@ -128,14 +128,12 @@ #define HNS_ROCE_CMD_FLAG_OUT_VALID_SHIFT 1 #define HNS_ROCE_CMD_FLAG_NEXT_SHIFT 2 #define HNS_ROCE_CMD_FLAG_WR_OR_RD_SHIFT 3 -#define HNS_ROCE_CMD_FLAG_NO_INTR_SHIFT 4 #define HNS_ROCE_CMD_FLAG_ERR_INTR_SHIFT 5
#define HNS_ROCE_CMD_FLAG_IN BIT(HNS_ROCE_CMD_FLAG_IN_VALID_SHIFT) #define HNS_ROCE_CMD_FLAG_OUT BIT(HNS_ROCE_CMD_FLAG_OUT_VALID_SHIFT) #define HNS_ROCE_CMD_FLAG_NEXT BIT(HNS_ROCE_CMD_FLAG_NEXT_SHIFT) #define HNS_ROCE_CMD_FLAG_WR BIT(HNS_ROCE_CMD_FLAG_WR_OR_RD_SHIFT) -#define HNS_ROCE_CMD_FLAG_NO_INTR BIT(HNS_ROCE_CMD_FLAG_NO_INTR_SHIFT) #define HNS_ROCE_CMD_FLAG_ERR_INTR BIT(HNS_ROCE_CMD_FLAG_ERR_INTR_SHIFT)
#define HNS_ROCE_CMQ_DESC_NUM_S 3