net/mlx5e: Enable TC offload for egress MACVLAN

Support offloading of TC rules that mirror/redirect egress traffic to a
MACVLAN device, which is attached to mlx5 representor net device.
Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -39,6 +39,7 @@
 #include <linux/rhashtable.h>
 #include <linux/refcount.h>
 #include <linux/completion.h>
+#include <linux/if_macvlan.h>
 #include <net/tc_act/tc_pedit.h>
 #include <net/tc_act/tc_csum.h>
 #include <net/psample.h>
@@ -3907,6 +3908,9 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
 						return err;
 				}
 
+				if (netif_is_macvlan(out_dev))
+					out_dev = macvlan_dev_real_dev(out_dev);
+
 				err = verify_uplink_forwarding(priv, flow, out_dev, extack);
 				if (err)
 					return err;