netdev - [PATCH RFC 06/13] net: Add xfrm offload callbacks to struct net

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Date:	Thu, 4 Feb 2016 07:36:59 +0100
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	<netdev@...r.kernel.org>
CC:	Steffen Klassert <steffen.klassert@...unet.com>,
	<sowmini.varadhan@...cle.com>
Subject: [PATCH RFC 06/13] net: Add xfrm offload callbacks to struct net_device

This patch adds the callbacks we need for IPsec GSO
and maybe also for IPsec hardware offload.

Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---
 include/linux/netdevice.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6fd1f1d..6936e96f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -778,6 +778,12 @@ static inline bool netdev_phys_item_id_same(struct netdev_phys_item_id *a,
 
 typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
 				       struct sk_buff *skb);
+struct xfrmdev_ops {
+	int			(*xdo_dev_encap) (struct sk_buff *skb);
+	int			(*xdo_dev_prepare) (struct sk_buff *skb);
+	int			(*xdo_dev_validate) (struct sk_buff *skb);
+	void			(*xdo_dev_resume) (struct sk_buff *skb, int err);
+};
 
 /*
  * This structure defines the management hooks for network devices.
@@ -1625,6 +1631,9 @@ struct net_device {
 #ifdef CONFIG_NET_L3_MASTER_DEV
 	const struct l3mdev_ops	*l3mdev_ops;
 #endif
+#ifdef CONFIG_XFRM
+	const struct xfrmdev_ops *xfrmdev_ops;
+#endif
 
 	const struct header_ops *header_ops;
 
-- 
1.9.1