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Commit 4586f1bb authored by Scott Feldman's avatar Scott Feldman Committed by David S. Miller
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netdevice: add IPv4 fib add/del ops 



Add two new ndo ops for IPv4 fib offload support, add and del.  Add uses
modifiy semantics if fib entry already offloaded.  Drivers implementing the new
ndo ops will return err<0 if programming device fails, for example if device's
tables are full.

Signed-off-by: default avatarScott Feldman <sfeldma@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 37ed9493

include/linux/netdevice.h

+22 −0
Original line number Diff line number Diff line
@@ -768,6 +768,8 @@ struct netdev_phys_item_id { 
typedef u16 (*select_queue_fallback_t)(struct net_device *dev,

				       struct sk_buff *skb);



struct fib_info;



/*

 * This structure defines the management hooks for network devices.

 * The following hooks can be defined; unless noted otherwise, they are
@@ -1031,6 +1033,14 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev, 
 * int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state);

 *	Called to notify switch device port of bridge port STP

 *	state change.

 * int (*ndo_sw_parent_fib_ipv4_add)(struct net_device *dev, __be32 dst,

 *				     int dst_len, struct fib_info *fi,

 *				     u8 tos, u8 type, u32 tb_id);

 *	Called to add/modify IPv4 route to switch device.

 * int (*ndo_sw_parent_fib_ipv4_del)(struct net_device *dev, __be32 dst,

 *				     int dst_len, struct fib_info *fi,

 *				     u8 tos, u8 type, u32 tb_id);

 *	Called to delete IPv4 route from switch device.

 */

struct net_device_ops {

	int			(*ndo_init)(struct net_device *dev);
@@ -1192,6 +1202,18 @@ struct net_device_ops { 
							    struct netdev_phys_item_id *psid);

	int			(*ndo_switch_port_stp_update)(struct net_device *dev,

							      u8 state);

	int			(*ndo_switch_fib_ipv4_add)(struct net_device *dev,

							   __be32 dst,

							   int dst_len,

							   struct fib_info *fi,

							   u8 tos, u8 type,

							   u32 tb_id);

	int			(*ndo_switch_fib_ipv4_del)(struct net_device *dev,

							   __be32 dst,

							   int dst_len,

							   struct fib_info *fi,

							   u8 tos, u8 type,

							   u32 tb_id);

#endif

};