diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index 778a766cdf..5ba788a330 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -1832,7 +1832,17 @@ flow_dv_validate_action_pop_vlan(struct rte_eth_dev *dev, RTE_FLOW_ERROR_TYPE_ACTION, action, "no support for multiple VLAN " "actions"); - if (!(item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) + /* Pop VLAN with preceding Decap requires inner header with VLAN. */ + if ((action_flags & MLX5_FLOW_ACTION_DECAP) && + !(item_flags & MLX5_FLOW_LAYER_INNER_VLAN)) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "cannot pop vlan after decap without " + "match on inner vlan in the flow"); + /* Pop VLAN without preceding Decap requires outer header with VLAN. */ + if (!(action_flags & MLX5_FLOW_ACTION_DECAP) && + !(item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,