tree bae0b696a34a60c400e12e6e698036fdccb9ee76
parent 10f00aa1c410e46febcf09d92211fcb7da9ba5e9
author Jiri Pirko <jiri@mellanox.com> 1467450020 +0200
committer David S. Miller <davem@davemloft.net> 1467487278 -0400

mlxsw: spectrum: Add traps needed for router implementation

ip2me:
To instruct HW to send trapped ip2me traffic to kernel, we have to add
this trap. Selection ip2me traffic is introduced later on in this set.

ARPs:
We are going to stop flooding to CPU port when netdev isn't bridged and
only get packets destined to the netdev's IP address and certain control
packets.

Add traps for ARP request (broadcast) and response (unicast) in order to
get these to the CPU and resolve neighbours.

host miss:
If a packet is routed through a directly connected route and its
destination IP is not in the device's neighbour table, then we need to
trap it to CPU. This will cause the host to resolve the MAC of the
neighbour, which will be eventually programmed to the device's table.

router ingress:
In order to trap packets in router part.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>