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 f46a09e..75543bb 100644 (file)
--- 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,