C++ (Cpp) to_c4iw_cq Examples

Example #1

File: cq.c Project: avagin/linux

int c4iw_flush_sq(struct c4iw_qp *qhp)
{
	int flushed = 0;
	struct t4_wq *wq = &qhp->wq;
	struct c4iw_cq *chp = to_c4iw_cq(qhp->ibqp.send_cq);
	struct t4_cq *cq = &chp->cq;
	int idx;
	struct t4_swsqe *swsqe;

	if (wq->sq.flush_cidx == -1)
		wq->sq.flush_cidx = wq->sq.cidx;
	idx = wq->sq.flush_cidx;
	while (idx != wq->sq.pidx) {
		swsqe = &wq->sq.sw_sq[idx];
		swsqe->flushed = 1;
		insert_sq_cqe(wq, cq, swsqe);
		if (wq->sq.oldest_read == swsqe) {
			advance_oldest_read(wq);
		}
		flushed++;
		if (++idx == wq->sq.size)
			idx = 0;
	}
	wq->sq.flush_cidx += flushed;
	if (wq->sq.flush_cidx >= wq->sq.size)
		wq->sq.flush_cidx -= wq->sq.size;
	return flushed;
}

Example #2

File: cq.c Project: Lxg1582/freebsd

void c4iw_flush_sq(struct c4iw_qp *qhp)
{
	unsigned short flushed = 0;
	struct t4_wq *wq = &qhp->wq;
	struct c4iw_cq *chp = to_c4iw_cq(qhp->ibv_qp.send_cq);
	struct t4_cq *cq = &chp->cq;
	int idx;
	struct t4_swsqe *swsqe;
	
	if (wq->sq.flush_cidx == -1)
		wq->sq.flush_cidx = wq->sq.cidx;
	idx = wq->sq.flush_cidx;
	BUG_ON(idx >= wq->sq.size);
	while (idx != wq->sq.pidx) {
		swsqe = &wq->sq.sw_sq[idx];
		BUG_ON(swsqe->flushed);
		swsqe->flushed = 1;
		insert_sq_cqe(wq, cq, swsqe);
		if (wq->sq.oldest_read == swsqe) {
			BUG_ON(swsqe->opcode != FW_RI_READ_REQ);
			advance_oldest_read(wq);
		}
		flushed++;
		if (++idx == wq->sq.size)
			idx = 0;
	}
	wq->sq.flush_cidx += flushed;
	if (wq->sq.flush_cidx >= wq->sq.size)
		wq->sq.flush_cidx -= wq->sq.size;
}

Example #3

File: cq.c Project: ANFS/ANFS-kernel

int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
{
	struct c4iw_cq *chp;
	int ret;
	unsigned long flag;

	chp = to_c4iw_cq(ibcq);
	spin_lock_irqsave(&chp->lock, flag);
	ret = t4_arm_cq(&chp->cq,
			(flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED);
	spin_unlock_irqrestore(&chp->lock, flag);
	if (ret && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
		ret = 0;
	return ret;
}

Example #4

File: cq.c Project: avagin/linux

void c4iw_flush_srqidx(struct c4iw_qp *qhp, u32 srqidx)
{
	struct c4iw_cq *rchp = to_c4iw_cq(qhp->ibqp.recv_cq);
	unsigned long flag;

	/* locking heirarchy: cq lock first, then qp lock. */
	spin_lock_irqsave(&rchp->lock, flag);
	spin_lock(&qhp->lock);

	/* create a SRQ RECV CQE for srqidx */
	insert_recv_cqe(&qhp->wq, &rchp->cq, srqidx);

	spin_unlock(&qhp->lock);
	spin_unlock_irqrestore(&rchp->lock, flag);
}

Example #5

File: cq.c Project: ANFS/ANFS-kernel

int c4iw_destroy_cq(struct ib_cq *ib_cq)
{
	struct c4iw_cq *chp;
	struct c4iw_ucontext *ucontext;

	PDBG("%s ib_cq %p\n", __func__, ib_cq);
	chp = to_c4iw_cq(ib_cq);

	remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
	atomic_dec(&chp->refcnt);
	wait_event(chp->wait, !atomic_read(&chp->refcnt));

	ucontext = ib_cq->uobject ? to_c4iw_ucontext(ib_cq->uobject->context)
				  : NULL;
	destroy_cq(&chp->rhp->rdev, &chp->cq,
		   ucontext ? &ucontext->uctx : &chp->cq.rdev->uctx);
	kfree(chp);
	return 0;
}

Example #6

File: cq.c Project: ANFS/ANFS-kernel

int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
{
	struct c4iw_cq *chp;
	unsigned long flags;
	int npolled;
	int err = 0;

	chp = to_c4iw_cq(ibcq);

	spin_lock_irqsave(&chp->lock, flags);
	for (npolled = 0; npolled < num_entries; ++npolled) {
		do {
			err = c4iw_poll_cq_one(chp, wc + npolled);
		} while (err == -EAGAIN);
		if (err)
			break;
	}
	spin_unlock_irqrestore(&chp->lock, flags);
	return !err || err == -ENODATA ? npolled : err;
}

Example #7

File: cq.c Project: avagin/linux

int c4iw_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
{
	struct c4iw_cq *chp;
	struct c4iw_ucontext *ucontext;

	pr_debug("ib_cq %p\n", ib_cq);
	chp = to_c4iw_cq(ib_cq);

	xa_erase_irq(&chp->rhp->cqs, chp->cq.cqid);
	atomic_dec(&chp->refcnt);
	wait_event(chp->wait, !atomic_read(&chp->refcnt));

	ucontext = rdma_udata_to_drv_context(udata, struct c4iw_ucontext,
					     ibucontext);
	destroy_cq(&chp->rhp->rdev, &chp->cq,
		   ucontext ? &ucontext->uctx : &chp->cq.rdev->uctx,
		   chp->destroy_skb, chp->wr_waitp);
	c4iw_put_wr_wait(chp->wr_waitp);
	kfree(chp);
	return 0;
}

Example #8

File: cq.c Project: ReneNyffenegger/linux

int c4iw_destroy_cq(struct ib_cq *ib_cq)
{
	struct c4iw_cq *chp;
	struct c4iw_ucontext *ucontext;

	pr_debug("ib_cq %p\n", ib_cq);
	chp = to_c4iw_cq(ib_cq);

	remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
	atomic_dec(&chp->refcnt);
	wait_event(chp->wait, !atomic_read(&chp->refcnt));

	ucontext = ib_cq->uobject ? to_c4iw_ucontext(ib_cq->uobject->context)
				  : NULL;
	destroy_cq(&chp->rhp->rdev, &chp->cq,
		   ucontext ? &ucontext->uctx : &chp->cq.rdev->uctx,
		   chp->destroy_skb, chp->wr_waitp);
	c4iw_put_wr_wait(chp->wr_waitp);
	kfree(chp);
	return 0;
}