openvswitch: Wrap struct ovs_key_ipv4_tunnel in a new structure.

Currently, the flow information that is matched for tunnels and
the tunnel data passed around with packets is the same. However,
as additional information is added this is not necessarily desirable,
as in the case of pointers.

This adds a new structure for tunnel metadata which currently contains
only the existing struct. This change is purely internal to the kernel
since the current OVS_KEY_ATTR_IPV4_TUNNEL is simply a compressed version
of OVS_KEY_ATTR_TUNNEL that is translated at flow setup.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 5 deletions

diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index f19539bb8adc..5fbff2c1ee49 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -58,7 +58,7 @@ static inline struct vxlan_port *vxlan_vport(const struct vport *vport)
 /* Called with rcu_read_lock and BH disabled. */
 static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff *skb, __be32 vx_vni)
 {
-	struct ovs_key_ipv4_tunnel tun_key;
+	struct ovs_tunnel_info tun_info;
 	struct vport *vport = vs->data;
 	struct iphdr *iph;
 	__be64 key;
@@ -66,9 +66,9 @@ static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff *skb, __be32 vx_vni)
 	/* Save outer tunnel values */
 	iph = ip_hdr(skb);
 	key = cpu_to_be64(ntohl(vx_vni) >> 8);
-	ovs_flow_tun_key_init(&tun_key, iph, key, TUNNEL_KEY);
+	ovs_flow_tun_info_init(&tun_info, iph, key, TUNNEL_KEY);
 
-	ovs_vport_receive(vport, skb, &tun_key);
+	ovs_vport_receive(vport, skb, &tun_info);
 }
 
 static int vxlan_get_options(const struct vport *vport, struct sk_buff *skb)
@@ -147,12 +147,12 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
 	__be16 df;
 	int err;
 
-	if (unlikely(!OVS_CB(skb)->egress_tun_key)) {
+	if (unlikely(!OVS_CB(skb)->egress_tun_info)) {
 		err = -EINVAL;
 		goto error;
 	}
 
-	tun_key = OVS_CB(skb)->egress_tun_key;
+	tun_key = &OVS_CB(skb)->egress_tun_info->tunnel;
 	/* Route lookup */
 	memset(&fl, 0, sizeof(fl));
 	fl.daddr = tun_key->ipv4_dst;