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| author | Paul Blakey <paulb@mellanox.com> | 2019-09-04 15:56:37 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-06 14:59:18 +0200 |
| commit | 95a7233c452a58a4c2310c456c73997853b2ec46 (patch) | |
| tree | 5bb8386f508373060f22f1975039cd87cea2beb2 /net/openvswitch/datapath.h | |
| parent | nfp: Drop unnecessary continue in nfp_net_pf_alloc_vnics (diff) | |
| download | linux-95a7233c452a58a4c2310c456c73997853b2ec46.tar.xz linux-95a7233c452a58a4c2310c456c73997853b2ec46.zip | |
net: openvswitch: Set OvS recirc_id from tc chain index
Offloaded OvS datapath rules are translated one to one to tc rules,
for example the following simplified OvS rule:
recirc_id(0),in_port(dev1),eth_type(0x0800),ct_state(-trk) actions:ct(),recirc(2)
Will be translated to the following tc rule:
$ tc filter add dev dev1 ingress \
prio 1 chain 0 proto ip \
flower tcp ct_state -trk \
action ct pipe \
action goto chain 2
Received packets will first travel though tc, and if they aren't stolen
by it, like in the above rule, they will continue to OvS datapath.
Since we already did some actions (action ct in this case) which might
modify the packets, and updated action stats, we would like to continue
the proccessing with the correct recirc_id in OvS (here recirc_id(2))
where we left off.
To support this, introduce a new skb extension for tc, which
will be used for translating tc chain to ovs recirc_id to
handle these miss cases. Last tc chain index will be set
by tc goto chain action and read by OvS datapath.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch/datapath.h')
| -rw-r--r-- | net/openvswitch/datapath.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h index 751d34accdf9..81e85dde8217 100644 --- a/net/openvswitch/datapath.h +++ b/net/openvswitch/datapath.h @@ -218,6 +218,8 @@ static inline struct datapath *get_dp(struct net *net, int dp_ifindex) extern struct notifier_block ovs_dp_device_notifier; extern struct genl_family dp_vport_genl_family; +DECLARE_STATIC_KEY_FALSE(tc_recirc_sharing_support); + void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key); void ovs_dp_detach_port(struct vport *); int ovs_dp_upcall(struct datapath *, struct sk_buff *, |