47 lines
1.5 KiB
Diff
47 lines
1.5 KiB
Diff
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From 816341b19c5e7138d44f3366afcc92d6edf8f434 Mon Sep 17 00:00:00 2001
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From: wenglianfa <wenglianfa@huawei.com>
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Date: Wed, 12 Jun 2024 17:11:13 +0800
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Subject: [PATCH] libhns: Fix the exception branch of wr_start() is not locked
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mainline inclusion
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from mainline-master
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commit d1d0ac518e20dc1eca4fcc62d091c69e20b114da
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category: feature
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bugzilla: https://gitee.com/src-openeuler/rdma-core/issues/IB66RT
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CVE: NA
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Reference:
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https://github.com/linux-rdma/rdma-core/pull/commits/d1d0ac518e20dc1eca4fcc62d091c69e20b114da
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------------------------------------------------------------------
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The provider should provide locking to ensure that ibv_wr_start()
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and ibv_wr_complete()/abort() form a per-QP critical section
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where no other threads can enter.
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The exception branch of wr_start() is not locked, fix it here.
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Because check_qp_send () does not require lock protection,
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hns_roce_spin_lock () is placed after check_qp_send ().
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Fixes: 36446a56eea5 ("libhns: Extended QP supports the new post send mechanism")
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Signed-off-by: wenglianfa <wenglianfa@huawei.com>
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Signed-off-by: Xinghai Cen <cenxinghai@h-partners.com>
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---
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providers/hns/hns_roce_u_hw_v2.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/providers/hns/hns_roce_u_hw_v2.c b/providers/hns/hns_roce_u_hw_v2.c
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index 465ef1e..e4232ea 100644
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--- a/providers/hns/hns_roce_u_hw_v2.c
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+++ b/providers/hns/hns_roce_u_hw_v2.c
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@@ -2930,6 +2930,7 @@ static void wr_start(struct ibv_qp_ex *ibv_qp)
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ret = check_qp_send(qp, ctx);
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if (ret) {
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+ hns_roce_spin_lock(&qp->sq.hr_lock);
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qp->err = ret;
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return;
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}
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--
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2.25.1
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