Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.12 363/700] RDMA/hns: Remove the condition of light load for posting DWQE | Date | Mon, 12 Jul 2021 08:07:26 +0200 |
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From: Yixian Liu <liuyixian@huawei.com>
[ Upstream commit 591f762b2750c628df9412d1c795b56e83a34b3e ]
Even in the case of heavy load, direct WQE can still be posted. The hardware will decide whether to drop the DWQE or not. Thus, the limit needs to be removed.
Fixes: 01584a5edcc4 ("RDMA/hns: Add support of direct wqe") Link: https://lore.kernel.org/r/1619593950-29414-1-git-send-email-liweihang@huawei.com Signed-off-by: Yixian Liu <liuyixian@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index ad3cee54140e..3344b80ecf04 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -750,8 +750,7 @@ out: qp->sq.head += nreq; qp->next_sge = sge_idx; - if (nreq == 1 && qp->sq.head == qp->sq.tail + 1 && - (qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE)) + if (nreq == 1 && (qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE)) write_dwqe(hr_dev, qp, wqe); else update_sq_db(hr_dev, qp); -- 2.30.2
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