From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Date: Mon, 23 Nov 2015 14:44:45 +0000 (+0100)
Subject: mlx5: fix scattered Tx with too many segments
X-Git-Tag: spdx-start~7989
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=34d062630609eb0d64a7d8b786336804c7fa2904;p=dpdk.git

mlx5: fix scattered Tx with too many segments

Buffers with too many segments are linearized to overcome
MLX5_PMD_SGE_WR_N, unfortunately the last segment is never sent.

Fixes: 3ee8444608a9 ("mlx5: support scattered Rx and Tx")

Signed-off-by: Jesper Wramberg <jesper.wramberg@gmail.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 4c6ed328a0..80d0c97b4c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -325,6 +325,8 @@ tx_burst_sg(struct txq *txq, unsigned int segs, struct txq_elt *elt,
 		sge->length = size;
 		sge->lkey = txq->mr_linear->lkey;
 		sent_size += size;
+		/* Include last segment. */
+		segs++;
 	}
 	return (struct tx_burst_sg_ret){
 		.length = sent_size,