netdev-offload-tc: Allow installing arp rules to TC dp.

This patch allows to install arp rules to tc dp.
In the future, arp will be offloaded to hardware to
be processed. So OvS enable this now.

$ ovs-appctl dpctl/add-flow 'recirc_id(0),in_port(3),eth(),\
  eth_type(0x0806),arp(op=2,tha=00:50:56:e1:4b:ab,tip=10.255.1.116)' 2

$ ovs-appctl dpctl/dump-flows
  ... arp(tip=10.255.1.116,op=2,tha=00:50:56:e1:4b:ab) ...

$ tc filter show dev <ethx> ingress
  ...
  eth_type arp
  arp_tip 10.255.1.116
  arp_op reply
  arp_tha 00:50:56:e1:4b:ab
  not_in_hw
    action order 1: mirred (Egress Redirect to device <ethy>) stolen
    ...

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/openvswitch/match.h b/include/openvswitch/match.h
index 3b196c7fa..9e480318e 100644
--- a/include/openvswitch/match.h
+++ b/include/openvswitch/match.h
@@ -197,6 +197,8 @@ void match_set_tp_dst_masked(struct match *, ovs_be16 port, ovs_be16 mask);
 void match_set_tcp_flags(struct match *, ovs_be16);
 void match_set_tcp_flags_masked(struct match *, ovs_be16 flags, ovs_be16 mask);
 void match_set_nw_proto(struct match *, uint8_t);
+void match_set_nw_proto_masked(struct match *match,
+                               const uint8_t nw_proto, const uint8_t mask);
 void match_set_nw_src(struct match *, ovs_be32);
 void match_set_nw_src_masked(struct match *, ovs_be32 ip, ovs_be32 mask);
 void match_set_nw_dst(struct match *, ovs_be32);
@@ -210,6 +212,9 @@ void match_set_nw_frag(struct match *, uint8_t nw_frag);
 void match_set_nw_frag_masked(struct match *, uint8_t nw_frag, uint8_t mask);
 void match_set_icmp_type(struct match *, uint8_t);
 void match_set_icmp_code(struct match *, uint8_t);
+void match_set_arp_opcode_masked(struct match *match,
+                                 const uint8_t opcode,
+                                 const uint8_t mask);
 void match_set_arp_sha(struct match *, const struct eth_addr);
 void match_set_arp_sha_masked(struct match *,
                               const struct eth_addr arp_sha,
@@ -218,6 +223,12 @@ void match_set_arp_tha(struct match *, const struct eth_addr);
 void match_set_arp_tha_masked(struct match *,
                               const struct eth_addr arp_tha,
                               const struct eth_addr mask);
+void match_set_arp_spa_masked(struct match *match,
+                              const ovs_be32 arp_spa,
+                              const ovs_be32 mask);
+void match_set_arp_tpa_masked(struct match *match,
+                              const ovs_be32 arp_tpa,
+                              const ovs_be32 mask);
 void match_set_ipv6_src(struct match *, const struct in6_addr *);
 void match_set_ipv6_src_masked(struct match *, const struct in6_addr *,
                                const struct in6_addr *);