[PATCH RFC 05/13] xfrm: Add callbacks for IPsec GSO offloading

[Steffen Klassert]

This patch prepares struct xfrm_type for IPsec GSO offloading by
adding a encap() callback for encapsulation and a output_tail()
callback to do the crypto operations after the return from the
GSO layer. We need the output_tail() callback to handle async
crypto operations.

Signed-off-by: Steffen Klassert <steffen.klass...@secunet.com>
---
 include/net/xfrm.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index aed7153..a33ceb7 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -375,6 +375,8 @@ struct xfrm_type {
        void                    (*destructor)(struct xfrm_state *);
        int                     (*input)(struct xfrm_state *, struct sk_buff 
*skb);
        int                     (*output)(struct xfrm_state *, struct sk_buff 
*pskb);
+       int                     (*output_tail)(struct xfrm_state *x, struct 
sk_buff *skb);
+       void                    (*encap)(struct xfrm_state *x, struct sk_buff 
*skb);
        int                     (*reject)(struct xfrm_state *, struct sk_buff *,
                                          const struct flowi *);
        int                     (*hdr_offset)(struct xfrm_state *, struct 
sk_buff *, u8 **);
-- 
1.9.1