From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Date: Mon, 23 Nov 2015 14:44:38 +0000 (+0100)
Subject: mlx4: fix scattered Tx with too many segments
X-Git-Tag: spdx-start~7990
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=2921677f15bf68dc7bd5d6fec2eb1f5d94bc32cf;hp=8340392e9b3b65996ca95cc09fc621744ced36b5;p=dpdk.git

mlx4: fix scattered Tx with too many segments

Buffers with too many segments are linearized to overcome
MLX4_PMD_SGE_WR_N, unfortunately the last segment is never sent.

Fixes: be11b35817e0 ("mlx4: move scattered Tx processing to helper function")

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

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index f46a09e59b..75543bb835 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -1195,6 +1195,8 @@ 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,