[ovs-git] [openvswitch/ovs] 75e1e6: lib/tc: add ICMP type and code match offload

[Simon Horman]

  Branch: refs/heads/master
  Home:   https://github.com/openvswitch/ovs
  Commit: 75e1e6fd2d6beee90e7eff5ce8059c44aa67c0ec
      https://github.com/openvswitch/ovs/commit/75e1e6fd2d6beee90e7eff5ce8059c44aa67c0ec
  Author: Maor Dickman <maord at nvidia.com>
  Date:   2021-02-01 (Mon, 01 Feb 2021)

  Changed paths:
    M lib/netdev-offload-tc.c
    M lib/tc.c
    M lib/tc.h

  Log Message:
  -----------
  lib/tc: add ICMP type and code match offload

Add TC offload support for classifying ICMPv4/6 type and code.

$ ovs-appctl dpctl/add-flow 'recirc_id(0),in_port(3),eth(),\
  eth_type(0x0800),ipv4(proto=1),icmp(type=9,code=0)' 2

$ ovs-appctl dpctl/dump-flows
  ... icmp(type=9,code=0) ...

$ tc filter show dev <ethx> ingress
  ...
  eth_type ipv4
  ip_proto icmp
  icmp_type 9
  icmp_code 0
  not_in_hw
  action order 1: mirred (Egress Redirect to device <ethy>) stolen
  ...

Signed-off-by: Maor Dickman <maord at nvidia.com>
Reviewed-by: Roi Dayan <roid at nvidia.com>
Signed-off-by: Simon Horman <simon.horman at netronome.com>