From: Roland Dreier <rolandd@cisco.com>
Date: Mon, 11 Jun 2007 21:55:23 +0000 (-0700)
Subject: Make sure RQs have max_recv_sge >= 1
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=8804cbd650b0cfc685a7cd19dc0cdce552746c90;p=~shefty%2Flibmlx4.git

Make sure RQs have max_recv_sge >= 1

When creating a QP that does have a receive queue, make sure that
max_recv_sge is >= 1.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

diff --git a/src/verbs.c b/src/verbs.c
index a3420cc..52ca0c8 100644
--- a/src/verbs.c
+++ b/src/verbs.c
@@ -360,6 +360,8 @@ struct ibv_qp *mlx4_create_qp(struct ibv_pd *pd, struct ibv_qp_init_attr *attr)
 
 	if (attr->srq)
 		attr->cap.max_recv_wr = qp->rq.max = 0;
+	else if (attr->cap.max_recv_sge < 1)
+		attr->cap.max_recv_sge = 1;
 
 	if (mlx4_alloc_qp_buf(pd, &attr->cap, attr->qp_type, qp))
 		goto err;