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-rw-r--r--drivers/infiniband/hw/qib/qib_verbs.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index 0e020e2ceed2..baf1e42b6896 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -346,6 +346,7 @@ static int qib_post_one_send(struct qib_qp *qp, struct ib_send_wr *wr,
unsigned long flags;
struct qib_lkey_table *rkt;
struct qib_pd *pd;
+ int avoid_schedule = 0;
spin_lock_irqsave(&qp->s_lock, flags);
@@ -438,11 +439,15 @@ static int qib_post_one_send(struct qib_qp *qp, struct ib_send_wr *wr,
qp->ibqp.qp_type == IB_QPT_RC) {
if (wqe->length > 0x80000000U)
goto bail_inval_free;
+ if (wqe->length <= qp->pmtu)
+ avoid_schedule = 1;
} else if (wqe->length > (dd_from_ibdev(qp->ibqp.device)->pport +
- qp->port_num - 1)->ibmtu)
+ qp->port_num - 1)->ibmtu) {
goto bail_inval_free;
- else
+ } else {
atomic_inc(&to_iah(ud_wr(wr)->ah)->refcount);
+ avoid_schedule = 1;
+ }
wqe->ssn = qp->s_ssn++;
qp->s_head = next;
@@ -458,7 +463,7 @@ bail_inval_free:
bail_inval:
ret = -EINVAL;
bail:
- if (!ret && !wr->next &&
+ if (!ret && !wr->next && !avoid_schedule &&
!qib_sdma_empty(
dd_from_ibdev(qp->ibqp.device)->pport + qp->port_num - 1)) {
qib_schedule_send(qp);