Packets can get a wrong Flow Tag on x86 architecture with the Flow Tag
compression format (rxq_cqe_comp_en=2) enabled inside the SSE Rx burst.
The shuffle mask that extracts a Flow Tag from the pair of compressed
CQEs is reversed. This leads to the wrong Flow Tag assignment.
Correct the shuffle mask to get proper bytes for a Flow Tag from miniCQEs.
Fixes: 54c2d46b160 ("net/mlx5: support flow tag and packet header miniCQEs")
Cc: sta...@dpdk.org
Signed-off-by: Alexander Kozyrev <akozy...@nvidia.com>
---
drivers/net/mlx5/mlx5_rxtx_vec_sse.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_sse.h
b/drivers/net/mlx5/mlx5_rxtx_vec_sse.h
index d4df9816aa..0b3f240e10 100644
--- a/drivers/net/mlx5/mlx5_rxtx_vec_sse.h
+++ b/drivers/net/mlx5/mlx5_rxtx_vec_sse.h
@@ -197,8 +197,8 @@ rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile
struct mlx5_cqe *cq,
const __m128i flow_mark_adj =
_mm_set_epi32(-1, -1, -1, -1);
const __m128i flow_mark_shuf =
- _mm_set_epi8(-1, 1, 0, 4,
- -1, 9, 8, 12,
+ _mm_set_epi8(-1, 9, 8, 12,
+ -1, 1, 0, 4,
-1, -1, -1, -1,
-1, -1, -1, -1);
const __m128i ft_mask =
--
2.24.1
