[dpdk-dev] [PATCH] net/mlx5: fix wrong segmented packet in Rx

[Jiawei Zhu]

Fixed issue could occur when Mbuf starvation happens
in a middle of reception of a segmented packet.
In such a situation, after release the segments of that
packet, it does not align consumer index to the next stride.
This would cause receive a wrong segmented packet.

Fixes: 15a756b63734 ("net/mlx5: fix possible NULL dereference in Rx path")
Cc: sta...@dpdk.org

Signed-off-by: Jiawei Zhu <17826875...@163.com>
---
 drivers/net/mlx5/mlx5_rxtx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 2e4b87c..e3ce9fd 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1480,6 +1480,9 @@ enum mlx5_txcmp_code {
                                rte_mbuf_raw_free(pkt);
                                pkt = rep;
                        }
+                       rq_ci >>= sges_n;
+                       ++rq_ci;
+                       rq_ci <<= sges_n;
                        break;
                }
                if (!pkt) {
-- 
1.8.3.1