4ece021efa
driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IALOAP ---------------------------------------------------------------------- Fixes several bugs for hns: libhns: Fix overwritten SL in DSCP mode libhns: Support returning the final value of SL configuration libhns: Fix memory leakage when DCA is enabled libhns: Fix the exception branch of wr_start() is not locked Signed-off-by: Xinghai Cen <cenxinghai@h-partners.com> (cherry picked from commit f7e92a7c61500e17a864d2e016e842436bd1f442)
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From 41592115435779d7c41e7f1677520b9c641289d9 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 4/4] libhns: Fix the exception branch of wr_start() is not
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locked
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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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---
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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 af25e6e..79f225c 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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@@ -2975,6 +2975,7 @@ 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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2.33.0
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