From: Eli Britstein <el...@mellanox.com>
Changing the prio field of the VLAN is not supported. With
commit 37410902874c ("net/mlx5e: Support VLAN modify action") zero
value indicated "no-change". Allow the vid rewrite if the prio match
is the same as the prio set value.
Fixes: 37410902874c ("net/mlx5e: Support VLAN modify action")
Signed-off-by: Eli Britstein <el...@mellanox.com>
Reviewed-by: Roi Dayan <r...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index d4a48a02f31c..1304cb07e319 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2292,6 +2292,7 @@ static int add_vlan_rewrite_action(struct mlx5e_priv
*priv, int namespace,
.mangle.mask = ~(u32)be16_to_cpu(*(__be16 *)&mask16),
.mangle.val = (u32)be16_to_cpu(*(__be16 *)&val16),
};
+ u8 match_prio_mask, match_prio_val;
void *headers_c, *headers_v;
int err;
@@ -2305,8 +2306,11 @@ static int add_vlan_rewrite_action(struct mlx5e_priv
*priv, int namespace,
return -EOPNOTSUPP;
}
- if (act->vlan.prio) {
- NL_SET_ERR_MSG_MOD(extack, "Setting VLAN prio is not
supported");
+ match_prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c,
first_prio);
+ match_prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio);
+ if (act->vlan.prio != (match_prio_val & match_prio_mask)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Changing VLAN prio is not supported");
return -EOPNOTSUPP;
}
--
2.20.1
