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RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbs

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

Signed-off-by: Selvin Xavier <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Selvin Xavier 2017-11-06 08:07:32 -08:00 • committed by Doug Ledford
commit 051276658b
1 changed files with 10 additions and 5 deletions
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15
drivers/infiniband/hw/bnxt_re/ib_verbs.c
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@ -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 */