/* * include/net/switchdev.h - Switch device API * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us> * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */#ifndef _LINUX_SWITCHDEV_H_#define _LINUX_SWITCHDEV_H_ #include <linux/netdevice.h>#include <linux/notifier.h> struct fib_info; /** * struct switchdev_ops - switchdev operations * * @swdev_parent_id_get: Called to get an ID of the switch chip this port *   is part of.  If driver implements this, it indicates that it *   represents a port of a switch chip. * * @swdev_port_stp_update: Called to notify switch device port of bridge *   port STP state change. * * @swdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device. * * @swdev_fib_ipv4_del: Called to delete IPv4 route from switch device. */struct swdev_ops {	int	(*swdev_parent_id_get)(struct net_device *dev,				       struct netdev_phys_item_id *psid);	int	(*swdev_port_stp_update)(struct net_device *dev, u8 state);	int	(*swdev_fib_ipv4_add)(struct net_device *dev, __be32 dst,				      int dst_len, struct fib_info *fi,				      u8 tos, u8 type, u32 nlflags,				      u32 tb_id);	int	(*swdev_fib_ipv4_del)(struct net_device *dev, __be32 dst,				      int dst_len, struct fib_info *fi,				      u8 tos, u8 type, u32 tb_id);}; enum netdev_switch_notifier_type {	NETDEV_SWITCH_FDB_ADD = 1,	NETDEV_SWITCH_FDB_DEL,}; struct netdev_switch_notifier_info {	struct net_device *dev;}; struct netdev_switch_notifier_fdb_info {	struct netdev_switch_notifier_info info; /* must be first */	const unsigned char *addr;	u16 vid;}; static inline struct net_device *netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info){	return info->dev;} #ifdef CONFIG_NET_SWITCHDEV int netdev_switch_parent_id_get(struct net_device *dev,				struct netdev_phys_item_id *psid);int netdev_switch_port_stp_update(struct net_device *dev, u8 state);int register_netdev_switch_notifier(struct notifier_block *nb);int unregister_netdev_switch_notifier(struct notifier_block *nb);int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,				 struct netdev_switch_notifier_info *info);int netdev_switch_port_bridge_setlink(struct net_device *dev,				struct nlmsghdr *nlh, u16 flags);int netdev_switch_port_bridge_dellink(struct net_device *dev,				struct nlmsghdr *nlh, u16 flags);int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,					       struct nlmsghdr *nlh, u16 flags);int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,					       struct nlmsghdr *nlh, u16 flags);int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,			       u8 tos, u8 type, u32 nlflags, u32 tb_id);int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,			       u8 tos, u8 type, u32 tb_id);void netdev_switch_fib_ipv4_abort(struct fib_info *fi); #else static inline int netdev_switch_parent_id_get(struct net_device *dev,					      struct netdev_phys_item_id *psid){	return -EOPNOTSUPP;} static inline int netdev_switch_port_stp_update(struct net_device *dev,						u8 state){	return -EOPNOTSUPP;} static inline int register_netdev_switch_notifier(struct notifier_block *nb){	return 0;} static inline int unregister_netdev_switch_notifier(struct notifier_block *nb){	return 0;} static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,					       struct netdev_switch_notifier_info *info){	return NOTIFY_DONE;} static inline int netdev_switch_port_bridge_setlink(struct net_device *dev,						    struct nlmsghdr *nlh,						    u16 flags){	return -EOPNOTSUPP;} static inline int netdev_switch_port_bridge_dellink(struct net_device *dev,						    struct nlmsghdr *nlh,						    u16 flags){	return -EOPNOTSUPP;} static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,							struct nlmsghdr *nlh,							u16 flags){	return 0;} static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,							struct nlmsghdr *nlh,							u16 flags){	return 0;} static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len,					     struct fib_info *fi,					     u8 tos, u8 type,					     u32 nlflags, u32 tb_id){	return 0;} static inline int netdev_switch_fib_ipv4_del(u32 dst, int dst_len,					     struct fib_info *fi,					     u8 tos, u8 type, u32 tb_id){	return 0;} static inline void netdev_switch_fib_ipv4_abort(struct fib_info *fi){} #endif #endif /* _LINUX_SWITCHDEV_H_ */