This is a note to let you know that I've just added the patch titled RDMA/hns: Fix initial arm_st of CQ to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rdma-hns-fix-initial-arm_st-of-cq.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 56684aeaaa912349ef6253bc00ea742c4958641d Author: Haoyue Xu <xuhaoyue1@xxxxxxxxxxxxx> Date: Fri Oct 29 17:58:46 2021 +0800 RDMA/hns: Fix initial arm_st of CQ [ Upstream commit 571fb4fb78a3bf0fcadbe65eca9ca4ccee885af4 ] We set the init CQ status to ARMED before. As a result, an unexpected CEQE would be reported. Therefore, the init CQ status should be set to no_armed rather than REG_NXT_CEQE. Fixes: a5073d6054f7 ("RDMA/hns: Add eq support of hip08") Link: https://lore.kernel.org/r/20211029095846.26732-1-liangwenpeng@xxxxxxxxxx Signed-off-by: Haoyue Xu <xuhaoyue1@xxxxxxxxxxxxx> Signed-off-by: Wenpeng Liang <liangwenpeng@xxxxxxxxxx> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index d5f3faa1627a4..8e5f0862896ee 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3328,7 +3328,7 @@ static void hns_roce_v2_write_cqc(struct hns_roce_dev *hr_dev, memset(cq_context, 0, sizeof(*cq_context)); hr_reg_write(cq_context, CQC_CQ_ST, V2_CQ_STATE_VALID); - hr_reg_write(cq_context, CQC_ARM_ST, REG_NXT_CEQE); + hr_reg_write(cq_context, CQC_ARM_ST, NO_ARMED); hr_reg_write(cq_context, CQC_SHIFT, ilog2(hr_cq->cq_depth)); hr_reg_write(cq_context, CQC_CEQN, hr_cq->vector); hr_reg_write(cq_context, CQC_CQN, hr_cq->cqn);