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Code Issues Releases Wiki Activity

i40iw: Correct CQ arming

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CQ is armed for solicited events only, ignoring other notification
flags. Correct this by arming for next and arming for solicited
event if IB_CQ_SOLICITED is set. Also protect CQ shadow area update
with spinlock.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Shiraz Saleem 2016-06-14 16:54:16 -05:00 committed by Doug Ledford
parent 61c78eea95
commit 747f1c6d9b
1 changed files with 6 additions and 3 deletions
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9
drivers/infiniband/hw/i40iw/i40iw_verbs.c
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@ -2327,13 +2327,16 @@ static int i40iw_req_notify_cq(struct ib_cq *ibcq,
{ {
struct i40iw_cq *iwcq; struct i40iw_cq *iwcq;
struct i40iw_cq_uk *ukcq; struct i40iw_cq_uk *ukcq;
enum i40iw_completion_notify cq_notify = IW_CQ_COMPL_SOLICITED; unsigned long flags;
enum i40iw_completion_notify cq_notify = IW_CQ_COMPL_EVENT;
iwcq = (struct i40iw_cq *)ibcq; iwcq = (struct i40iw_cq *)ibcq;
ukcq = &iwcq->sc_cq.cq_uk; ukcq = &iwcq->sc_cq.cq_uk;
if (notify_flags == IB_CQ_NEXT_COMP) if (notify_flags == IB_CQ_SOLICITED)
cq_notify = IW_CQ_COMPL_EVENT; cq_notify = IW_CQ_COMPL_SOLICITED;
spin_lock_irqsave(&iwcq->lock, flags);
ukcq->ops.iw_cq_request_notification(ukcq, cq_notify); ukcq->ops.iw_cq_request_notification(ukcq, cq_notify);
spin_unlock_irqrestore(&iwcq->lock, flags);
return 0; return 0;
} }