net: Add generic packet offload infrastructure.
Create a new data structure to contain the GRO/GSO callbacks and add
a new registration mechanism.
Singed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 7bf867c..d45a58d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1521,6 +1521,17 @@
struct list_head list;
};
+struct packet_offload {
+ __be16 type; /* This is really htons(ether_type). */
+ struct sk_buff *(*gso_segment)(struct sk_buff *skb,
+ netdev_features_t features);
+ int (*gso_send_check)(struct sk_buff *skb);
+ struct sk_buff **(*gro_receive)(struct sk_buff **head,
+ struct sk_buff *skb);
+ int (*gro_complete)(struct sk_buff *skb);
+ struct list_head list;
+};
+
#include <linux/notifier.h>
/* netdevice notifier chain. Please remember to update the rtnetlink
@@ -1615,6 +1626,9 @@
extern void dev_add_pack(struct packet_type *pt);
extern void dev_remove_pack(struct packet_type *pt);
extern void __dev_remove_pack(struct packet_type *pt);
+extern void dev_add_offload(struct packet_offload *po);
+extern void dev_remove_offload(struct packet_offload *po);
+extern void __dev_remove_offload(struct packet_offload *po);
extern struct net_device *dev_get_by_flags_rcu(struct net *net, unsigned short flags,
unsigned short mask);