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route: move lwtunnel state to dst_entry

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Currently, the lwtunnel state resides in per-protocol data. This is
a problem if we encapsulate ipv6 traffic in an ipv4 tunnel (or vice versa).
The xmit function of the tunnel does not know whether the packet has been
routed to it by ipv4 or ipv6, yet it needs the lwtstate data. Moving the
lwtstate data to dst_entry makes such inter-protocol tunneling possible.

As a bonus, this brings a nice diffstat.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc
2015-08-20 13:56:25 +02:00
committed by David S. Miller
parent 7c383fb225
commit 61adedf3e3
17 changed files with 48 additions and 130 deletions
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2
net/openvswitch/vport-netdev.c
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@@ -57,7 +57,7 @@ static void netdev_port_receive(struct vport *vport, struct sk_buff *skb)
skb_push(skb, ETH_HLEN);
ovs_skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
ovs_vport_receive(vport, skb, skb_tunnel_info(skb, AF_INET));
ovs_vport_receive(vport, skb, skb_tunnel_info(skb));
return;
error: