diff options
author | Harish Chegondi <harish.chegondi@intel.com> | 2016-01-22 21:07:49 (GMT) |
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committer | Doug Ledford <dledford@redhat.com> | 2016-03-11 01:37:29 (GMT) |
commit | a7d34a47f212ae6bd7f4748aebcc4f1192a048d1 (patch) | |
tree | d284ef20b8ec92bd9208de60207f361e196e6ab9 /drivers/infiniband/hw | |
parent | db3ef0eb84947e341b923c435ace2520d097d014 (diff) | |
download | linux-a7d34a47f212ae6bd7f4748aebcc4f1192a048d1.tar.xz |
IB/qib: Remove qib_post_receive and use rdmavt version
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>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r-- | drivers/infiniband/hw/qib/qib_verbs.c | 64 |
1 files changed, 1 insertions, 63 deletions
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 3766ea4..add899b 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -301,68 +301,6 @@ 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 * @hdr: the packet header @@ -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; |