[dpdk-dev] [PATCH 3/3] net/mlx5: do not invalidate title CQE

Nelio Laranjeiro nelio.laranjeiro at 6wind.com
Thu Nov 17 10:49:56 CET 2016


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

Reported-by: Liming Sun <lsun at mellanox.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
---
 drivers/net/mlx5/mlx5_rxtx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 04860bb..ffd09ac 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1162,7 +1162,7 @@ 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) {
-- 
2.1.4



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