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authorSelvin Xavier <selvin.xavier@broadcom.com>2017-11-06 19:07:31 +0300
committerDoug Ledford <dledford@redhat.com>2017-11-13 23:53:57 +0300
commitc88a7858d721af5e2d059e3b0b751fed0504e814 (patch)
treedee8f99cd851b6af9f752d099701b27d6a5d762b /drivers/infiniband
parent237379fc339750cbe6680f6a3565ab5c24e32229 (diff)
downloadlinux-c88a7858d721af5e2d059e3b0b751fed0504e814.tar.xz
RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QP
Destroy_qp shall wait for any outstanding CQ notification to be flushed out before proceeding with QP destroy. Flushing the WQ before destroying the QP. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/bnxt_re/ib_verbs.c1
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_fp.c7
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_fp.h1
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index adc42d7ff4f8..c29f33af334b 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -785,6 +785,7 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp)
struct bnxt_re_dev *rdev = qp->rdev;
int rc;
+ bnxt_qplib_flush_cqn_wq(&qp->qplib_qp);
bnxt_qplib_del_flush_qp(&qp->qplib_qp);
rc = bnxt_qplib_destroy_qp(&rdev->qplib_res, &qp->qplib_qp);
if (rc) {
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index 805a6124a48c..c0f813366ad6 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -2537,3 +2537,10 @@ void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
atomic_set(&cq->arm_state, 1);
spin_unlock_irqrestore(&cq->hwq.lock, flags);
}
+
+void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp)
+{
+ flush_workqueue(qp->scq->nq->cqn_wq);
+ if (qp->scq != qp->rcq)
+ flush_workqueue(qp->rcq->nq->cqn_wq);
+}
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index 8ead70ca1c1d..c582d4ec8173 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -478,4 +478,5 @@ void bnxt_qplib_release_cq_locks(struct bnxt_qplib_qp *qp,
int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
struct bnxt_qplib_cqe *cqe,
int num_cqes);
+void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp);
#endif /* __BNXT_QPLIB_FP_H__ */