int siw_destroy_cq(struct ib_cq *ofa_cq)
{
struct siw_cq *cq = siw_cq_ofa2siw(ofa_cq);
struct ib_device *ofa_dev = ofa_cq->device;
struct siw_dev *sdev = siw_dev_ofa2siw(ofa_dev);
siw_remove_obj(&sdev->idr_lock, &sdev->cq_idr, &cq->hdr);
siw_cq_put(cq);
return 0;
}
/*
* siw_poll_cq()
*
* Reap CQ entries if available and copy work completion status into
* array of WC's provided by caller. Returns number of reaped CQE's.
*
* @ofa_cq: OFA CQ contained in siw CQ.
* @num_cqe: Maximum number of CQE's to reap.
* @wc: Array of work completions to be filled by siw.
*/
int siw_poll_cq(struct ib_cq *ofa_cq, int num_cqe, struct ib_wc *wc)
{
struct siw_cq *cq = siw_cq_ofa2siw(ofa_cq);
int i;
for (i = 0; i < num_cqe; i++) {
if (!(siw_reap_cqe(cq, wc)))
break;
wc++;
}
dprint(DBG_CQ, " CQ%d: reap %d completions (%d left)\n",
OBJ_ID(cq), i, atomic_read(&cq->qlen));
return i;
}
/*
* siw_req_notify_cq()
*
* Request notification for new CQE's added to that CQ.
* Defined flags:
* o SIW_CQ_NOTIFY_SOLICITED lets siw trigger a notification
* event if a WQE with notification flag set enters the CQ
* o SIW_CQ_NOTIFY_NEXT_COMP lets siw trigger a notification
* event if a WQE enters the CQ.
* o IB_CQ_REPORT_MISSED_EVENTS: return value will provide the
* number of not reaped CQE's regardless of its notification
* type and current or new CQ notification settings.
*
* @ofa_cq: OFA CQ contained in siw CQ.
* @flags: Requested notification flags.
*/
int siw_req_notify_cq(struct ib_cq *ofa_cq, enum ib_cq_notify_flags flags)
{
struct siw_cq *cq = siw_cq_ofa2siw(ofa_cq);
dprint(DBG_EH, "(CQ%d:) flags: 0x%8x\n", OBJ_ID(cq), flags);
if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
cq->notify = SIW_CQ_NOTIFY_SOLICITED;
else
cq->notify = SIW_CQ_NOTIFY_ALL;
if (flags & IB_CQ_REPORT_MISSED_EVENTS)
return atomic_read(&cq->qlen);
return 0;
}