Exemple #1
0
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;
}
Exemple #2
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;
}
Exemple #3
0
/*
 * 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;
}