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RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QP

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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>
This commit is contained in:
Selvin Xavier 2017-11-06 08:07:31 -08:00 committed by Doug Ledford
parent 237379fc33
commit c88a7858d7
3 changed files with 9 additions and 0 deletions
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1
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View file

@ -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) {

7
drivers/infiniband/hw/bnxt_re/qplib_fp.c
View file

@ -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);
}

1
drivers/infiniband/hw/bnxt_re/qplib_fp.h
View file

@ -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__ */