ipv6: Add new offload registration infrastructure.

[~andy/linux] / include / net / protocol.h

diff --git a/include/net/protocol.h b/include/net/protocol.h
index 929528c73fe8454a1dd34da7efbbc6d1fd8677fd..637e1bb6a76ef0e92d723dae2d11db96f050a5d3 100644 (file)
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -77,6 +77,16 @@ struct inet6_protocol {
 #define INET6_PROTO_GSO_EXTHDR 0x4
 #endif
 
+struct net_offload {
+       int                     (*gso_send_check)(struct sk_buff *skb);
+       struct sk_buff         *(*gso_segment)(struct sk_buff *skb,
+                                              netdev_features_t features);
+       struct sk_buff        **(*gro_receive)(struct sk_buff **head,
+                                              struct sk_buff *skb);
+       int                     (*gro_complete)(struct sk_buff *skb);
+       unsigned int            flags;  /* Flags used by IPv6 for now */
+};
+
 /* This is used to register socket interfaces for IP protocols.  */
 struct inet_protosw {
        struct list_head list;
@@ -96,19 +106,25 @@ struct inet_protosw {
 #define INET_PROTOSW_ICSK      0x04  /* Is this an inet_connection_sock? */
 
 extern const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS];
+extern const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS];
 
 #if IS_ENABLED(CONFIG_IPV6)
 extern const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS];
+extern const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS];
 #endif
 
 extern int     inet_add_protocol(const struct net_protocol *prot, unsigned char num);
 extern int     inet_del_protocol(const struct net_protocol *prot, unsigned char num);
+extern int     inet_add_offload(const struct net_offload *prot, unsigned char num);
+extern int     inet_del_offload(const struct net_offload *prot, unsigned char num);
 extern void    inet_register_protosw(struct inet_protosw *p);
 extern void    inet_unregister_protosw(struct inet_protosw *p);
 
 #if IS_ENABLED(CONFIG_IPV6)
 extern int     inet6_add_protocol(const struct inet6_protocol *prot, unsigned char num);
 extern int     inet6_del_protocol(const struct inet6_protocol *prot, unsigned char num);
+extern int     inet6_add_offload(const struct net_offload *prot, unsigned char num);
+extern int     inet6_del_offload(const struct net_offload *prot, unsigned char num);
 extern int     inet6_register_protosw(struct inet_protosw *p);
 extern void    inet6_unregister_protosw(struct inet_protosw *p);
 #endif