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openvswitch: add tunnel protocol to sw_flow_key

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Store tunnel protocol (AF_INET or AF_INET6) in sw_flow_key. This field now
also acts as an indicator whether the flow contains tunnel data (this was
previously indicated by tun_key.u.ipv4.dst being set but with IPv6 addresses
in an union with IPv4 ones this won't work anymore).

The new field was added to a hole in sw_flow_key.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2015-10-05 13:09:46 +02:00 • committed by David S. Miller
parent 4917a1548f
commit 00a93babd0
4 changed files with 12 additions and 5 deletions
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2
net/openvswitch/flow_table.c
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@ -427,7 +427,7 @@ static u32 flow_hash(const struct sw_flow_key *key,
static int flow_key_start(const struct sw_flow_key *key)
{
if (key->tun_key.u.ipv4.dst)
if (key->tun_proto)
return 0;
else
return rounddown(offsetof(struct sw_flow_key, phy),