net/mlx5: fix modify field MAC address offset

The MAC addresses fields are 48 bit wide and are processed
by mlx5 PMD as two words. There the bug was introduced for
the offset, causing malfunction of MODIFY_FIELD action
with MAC address fields as source or destination and
with non zero field offset.

Fixes: 40c8fb1fd3b3 ("net/mlx5: update modify field action")
Cc: stable@dpdk.org
Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 8022d7d11f1e5593fb856441f6f0b4b2530e8786..5d9fbffd0e3c7feabaf01f1ab756d800563e0b60 100644 (file)
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -1503,7 +1503,7 @@ mlx5_flow_field_id_to_modify_info
                        if (data->offset < 16)
                                info[idx++] = (struct field_modify_info){2, 0,
                                                MLX5_MODI_OUT_DMAC_15_0};
-                       info[idx] = (struct field_modify_info){4, 0,
+                       info[idx] = (struct field_modify_info){4, off,
                                                MLX5_MODI_OUT_DMAC_47_16};
                }
                break;
@@ -1533,7 +1533,7 @@ mlx5_flow_field_id_to_modify_info
                        if (data->offset < 16)
                                info[idx++] = (struct field_modify_info){2, 0,
                                                MLX5_MODI_OUT_SMAC_15_0};
-                       info[idx] = (struct field_modify_info){4, 0,
+                       info[idx] = (struct field_modify_info){4, off,
                                                MLX5_MODI_OUT_SMAC_47_16};
                }
                break;