From: Nélio Laranjeiro <nelio.laranjeiro@6wind.com>
Date: Thu, 17 Nov 2016 09:49:56 +0000 (+0100)
Subject: net/mlx5: do not invalidate title CQE
X-Git-Tag: spdx-start~5121
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=b5750af6cb183b800f5362276fae3094031f10d2;p=dpdk.git

net/mlx5: do not invalidate title CQE

We can leave the title completion queue entry untouched since its contents
are not modified.

Reported-by: Liming Sun <lsun@mellanox.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 2c5ca74c21..63146ac335 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1160,7 +1160,7 @@ mlx5_rx_poll_len(struct rxq *rxq, volatile struct mlx5_cqe *cqe,
 			zip->na += 8;
 		}
 		if (unlikely(rxq->zip.ai == rxq->zip.cqe_cnt)) {
-			uint16_t idx = rxq->cq_ci;
+			uint16_t idx = rxq->cq_ci + 1;
 			uint16_t end = zip->cq_ci;
 
 			while (idx != end) {