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Commit 05127665 authored by Selvin Xavier's avatar Selvin Xavier Committed by Doug Ledford
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RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbs 



Synchronize poll_cq and req_notify_cq verbs using cq_lock,
instead of the lower level qplib->hwq.lock.

Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c88a7858

drivers/infiniband/hw/bnxt_re/ib_verbs.c

+10 −5
Original line number Diff line number Diff line
@@ -2996,8 +2996,10 @@ int bnxt_re_req_notify_cq(struct ib_cq *ib_cq, 
			  enum ib_cq_notify_flags ib_cqn_flags)

{

	struct bnxt_re_cq *cq = container_of(ib_cq, struct bnxt_re_cq, ib_cq);

	int type = 0;

	int type = 0, rc = 0;

	unsigned long flags;



	spin_lock_irqsave(&cq->cq_lock, flags);

	/* Trigger on the very next completion */

	if (ib_cqn_flags & IB_CQ_NEXT_COMP)

		type = DBR_DBR_TYPE_CQ_ARMALL;
@@ -3007,12 +3009,15 @@ int bnxt_re_req_notify_cq(struct ib_cq *ib_cq, 


	/* Poll to see if there are missed events */

	if ((ib_cqn_flags & IB_CQ_REPORT_MISSED_EVENTS) &&

	    !(bnxt_qplib_is_cq_empty(&cq->qplib_cq)))

		return 1;



	    !(bnxt_qplib_is_cq_empty(&cq->qplib_cq))) {

		rc = 1;

		goto exit;

	}

	bnxt_qplib_req_notify_cq(&cq->qplib_cq, type);



	return 0;

exit:

	spin_unlock_irqrestore(&cq->cq_lock, flags);

	return rc;

}



/* Memory Regions */