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IB/qib: Remove qib_post_receive and use rdmavt version

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This patch removes the simple post recv function in favor of using rdmavt.
The packet receive processing still lives in the driver though.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Harish Chegondi 2016-01-22 13:07:49 -08:00 committed by Doug Ledford
parent db3ef0eb84
commit a7d34a47f2
1 changed files with 1 additions and 63 deletions
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64
drivers/infiniband/hw/qib/qib_verbs.c
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@ -300,68 +300,6 @@ static void qib_copy_from_sge(void *data, struct rvt_sge_state *ss, u32 length)
}
}
/**
* qib_post_receive - post a receive on a QP
* @ibqp: the QP to post the receive on
* @wr: the WR to post
* @bad_wr: the first bad WR is put here
*
* This may be called from interrupt context.
*/
static int qib_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
struct ib_recv_wr **bad_wr)
{
struct rvt_qp *qp = ibqp_to_rvtqp(ibqp);
struct rvt_rwq *wq = qp->r_rq.wq;
unsigned long flags;
int ret;
/* Check that state is OK to post receive. */
if (!(ib_rvt_state_ops[qp->state] & RVT_POST_RECV_OK) || !wq) {
*bad_wr = wr;
ret = -EINVAL;
goto bail;
}
for (; wr; wr = wr->next) {
struct rvt_rwqe *wqe;
u32 next;
int i;
if ((unsigned) wr->num_sge > qp->r_rq.max_sge) {
*bad_wr = wr;
ret = -EINVAL;
goto bail;
}
spin_lock_irqsave(&qp->r_rq.lock, flags);
next = wq->head + 1;
if (next >= qp->r_rq.size)
next = 0;
if (next == wq->tail) {
spin_unlock_irqrestore(&qp->r_rq.lock, flags);
*bad_wr = wr;
ret = -ENOMEM;
goto bail;
}
wqe = get_rwqe_ptr(&qp->r_rq, wq->head);
wqe->wr_id = wr->wr_id;
wqe->num_sge = wr->num_sge;
for (i = 0; i < wr->num_sge; i++)
wqe->sg_list[i] = wr->sg_list[i];
/* Make sure queue entry is written before the head index. */
smp_wmb();
wq->head = next;
spin_unlock_irqrestore(&qp->r_rq.lock, flags);
}
ret = 0;
bail:
return ret;
}
/**
* qib_qp_rcv - processing an incoming packet on a QP
* @rcd: the context pointer
@ -1826,7 +1764,7 @@ int qib_register_ib_device(struct qib_devdata *dd)
ibdev->query_qp = qib_query_qp;
ibdev->destroy_qp = qib_destroy_qp;
ibdev->post_send = NULL;
ibdev->post_recv = qib_post_receive;
ibdev->post_recv = NULL;
ibdev->post_srq_recv = qib_post_srq_receive;
ibdev->create_cq = NULL;
ibdev->destroy_cq = NULL;