net/mlx5e: Support accept action on nic table

net/mlx5e: Support accept action on nic table

In one case, we may forward packets from one vport
to others, but only one packets flow will be accepted,
which destination ip was assign to VF.

+-----+     +-----+            +-----+
| VFn |     | VF1 |            | VF0 | accept
+--+--+     +--+--+  hairpin   +--^--+
   |           | <--------------- |
   |           |                  |
+--+-----------v-+             +--+-------------+
|   eswitch PF1  |             |   eswitch PF0  |
+----------------+             +----------------+

tc filter add dev $PF0 protocol all parent ffff: prio 1 handle 1 \
	flower skip_sw action mirred egress redirect dev $VF0_REP
tc filter add dev $VF0 protocol ip  parent ffff: prio 1 handle 1 \
	flower skip_sw dst_ip $VF0_IP action pass
tc filter add dev $VF0 protocol all parent ffff: prio 2 handle 2 \
	flower skip_sw action mirred egress redirect dev $VF1

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>