openvswitch: Add gre tunnel support.
Add gre vport implementation. Most of gre protocol processing
is pushed to gre module. It make use of gre demultiplexer
therefore it can co-exist with linux device based gre tunnels.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 2d961ae..376045c 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -34,6 +34,11 @@
/* The following definitions are for users of the vport subsytem: */
+/* The following definitions are for users of the vport subsytem: */
+struct vport_net {
+ struct vport __rcu *gre_vport;
+};
+
int ovs_vport_init(void);
void ovs_vport_exit(void);
@@ -152,6 +157,7 @@
struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *,
const struct vport_parms *);
void ovs_vport_free(struct vport *);
+void ovs_vport_deferred_free(struct vport *vport);
#define VPORT_ALIGN 8
@@ -192,6 +198,7 @@
* add yours to the list at the top of vport.c. */
extern const struct vport_ops ovs_netdev_vport_ops;
extern const struct vport_ops ovs_internal_vport_ops;
+extern const struct vport_ops ovs_gre_vport_ops;
static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb,
const void *start, unsigned int len)