X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fnet%2Fmlx5%2Fmlx5_txq.c;h=6fe61c4aef3f8f664c83bc1d057ed0dbe3d405c5;hb=cb6696d22023efad238709239792ec66b0920017;hp=7b2dc7c8e00beb284dc1f8aad56b757218b315b9;hpb=c305090bbaf8da9120db8eac584a9954c085f2c5;p=dpdk.git

diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 7b2dc7c8e0..6fe61c4aef 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -320,7 +320,13 @@ txq_ctrl_setup(struct rte_eth_dev *dev, struct txq_ctrl *txq_ctrl,
 			.max_send_wr = ((priv->device_attr.max_qp_wr < desc) ?
 					priv->device_attr.max_qp_wr :
 					desc),
-			/* Max number of scatter/gather elements in a WR. */
+			/*
+			 * Max number of scatter/gather elements in a WR,
+			 * must be 1 to prevent libmlx5 from trying to affect
+			 * too much memory. TX gather is not impacted by the
+			 * priv->device_attr.max_sge limit and will still work
+			 * properly.
+			 */
 			.max_send_sge = 1,
 		},
 		.qp_type = IBV_QPT_RAW_PACKET,
@@ -332,6 +338,10 @@ txq_ctrl_setup(struct rte_eth_dev *dev, struct txq_ctrl *txq_ctrl,
 		.comp_mask = (IBV_EXP_QP_INIT_ATTR_PD |
 			      IBV_EXP_QP_INIT_ATTR_RES_DOMAIN),
 	};
+	if (priv->txq_inline && priv->txqs_n >= priv->txqs_inline) {
+		tmpl.txq.max_inline = priv->txq_inline;
+		attr.init.cap.max_inline_data = tmpl.txq.max_inline;
+	}
 	tmpl.qp = ibv_exp_create_qp(priv->ctx, &attr.init);
 	if (tmpl.qp == NULL) {
 		ret = (errno ? errno : EINVAL);
@@ -339,6 +349,11 @@ txq_ctrl_setup(struct rte_eth_dev *dev, struct txq_ctrl *txq_ctrl,
 		      (void *)dev, strerror(ret));
 		goto error;
 	}
+	DEBUG("TX queue capabilities: max_send_wr=%u, max_send_sge=%u,"
+	      " max_inline_data=%u",
+	      attr.init.cap.max_send_wr,
+	      attr.init.cap.max_send_sge,
+	      attr.init.cap.max_inline_data);
 	attr.mod = (struct ibv_exp_qp_attr){
 		/* Move the QP to this state. */
 		.qp_state = IBV_QPS_INIT,
@@ -394,7 +409,7 @@ txq_ctrl_setup(struct rte_eth_dev *dev, struct txq_ctrl *txq_ctrl,
 		.obj = tmpl.qp,
 		/* Enable multi-packet send if supported. */
 		.family_flags =
-			(priv->mps ?
+			((priv->mps && !priv->sriov) ?
 			 IBV_EXP_QP_BURST_CREATE_ENABLE_MULTI_PACKET_SEND_WR :
 			 0),
 	};