Roland,
From: Eli Cohen <eli@mellanox.co.il>
Date: Sun, 15 Jun 2008 15:40:52 +0300
Subject: [PATCH] libmlx4: modify a QP to reset before destroying it
This is required to be done before cleaning the CQ from CQEs belonging to
this QP. If we fail to do this, we might get failures when subsequently
polling the CQ.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
---
src/verbs.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/src/verbs.c b/src/verbs.c
index bb904e2..693ed68 100644
--- a/src/verbs.c
+++ b/src/verbs.c
@@ -557,6 +557,15 @@ int mlx4_destroy_qp(struct ibv_qp *ibqp)
{
struct mlx4_qp *qp = to_mqp(ibqp);
int ret;
+ struct ibv_qp_attr attr = {
+ .qp_state = IBV_QPS_RESET,
+ };
+
+ if (ibqp->state != IBV_QPS_RESET) {
+ ret = mlx4_modify_qp(ibqp, &attr, IBV_QP_STATE);
+ if (ret)
+ return ret;
+ }
mlx4_cq_clean(to_mcq(ibqp->recv_cq), ibqp->qp_num,
ibqp->srq ? to_msrq(ibqp->srq) : NULL);
--
1.5.5.4
--
Eli Cohen
Mellanox Technologies LTD.
SW- Linux
Phone: +972 (4) 909 7200 (ext 276)
Mobile: +972 (54) 650 1206
E-mail: eli@mellanox.co.il
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