net/mlx5: block pop VLAN action on Tx

Add missing check in validation function of 'pop VLAN' action.
Action is not allowed for egress flow rules.

Fixes: b41e47da2592 ("net/mlx5: support pop flow action on VLAN header")
Cc: stable@dpdk.org
Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 1ed677f..9dc08ce 100644 (file)
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -1634,6 +1634,12 @@ flow_dv_validate_action_pop_vlan(struct rte_eth_dev *dev,
                                          RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
                                          NULL,
                                          "pop vlan action is not supported");
+       if (attr->egress)
+               return rte_flow_error_set(error, ENOTSUP,
+                                         RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
+                                         NULL,
+                                         "pop vlan action not supported for "
+                                         "egress");
        /*
         * Check for inconsistencies:
         *  fail strip_vlan in a flow that matches packets without VLAN tags.