[deliverable/linux.git] / include / net / switchdev.h

/*
 * 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_ */
Commit	Line	Data
007f790c JP	1	/*
	2	* include/net/switchdev.h - Switch device API
	3	* Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
f8f21471	4	* Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
007f790c JP	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11	#ifndef _LINUX_SWITCHDEV_H_
	12	#define _LINUX_SWITCHDEV_H_
	13
	14	#include <linux/netdevice.h>
03bf0c28 JP	15	#include <linux/notifier.h>
03bf0c28 JP	16
4170604f SF	17	struct fib_info;
	18
	19	/**
	20	* struct switchdev_ops - switchdev operations
	21	*
13bb8e2e SF	22	* @swdev_parent_id_get: Called to get an ID of the switch chip this port
	23	* is part of. If driver implements this, it indicates that it
	24	* represents a port of a switch chip.
4170604f	25	*
13bb8e2e SF	26	* @swdev_port_stp_update: Called to notify switch device port of bridge
13bb8e2e SF	27	* port STP state change.
4170604f	28	*
13bb8e2e	29	* @swdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device.
4170604f	30	*
13bb8e2e	31	* @swdev_fib_ipv4_del: Called to delete IPv4 route from switch device.
4170604f SF	32	*/
	33	struct swdev_ops {
	34	int (swdev_parent_id_get)(struct net_device dev,
	35	struct netdev_phys_item_id *psid);
	36	int (swdev_port_stp_update)(struct net_device dev, u8 state);
	37	int (swdev_fib_ipv4_add)(struct net_device dev, __be32 dst,
	38	int dst_len, struct fib_info *fi,
	39	u8 tos, u8 type, u32 nlflags,
	40	u32 tb_id);
	41	int (swdev_fib_ipv4_del)(struct net_device dev, __be32 dst,
	42	int dst_len, struct fib_info *fi,
	43	u8 tos, u8 type, u32 tb_id);
	44	};
	45
3aeb6617 JP	46	enum netdev_switch_notifier_type {
	47	NETDEV_SWITCH_FDB_ADD = 1,
	48	NETDEV_SWITCH_FDB_DEL,
	49	};
	50
03bf0c28 JP	51	struct netdev_switch_notifier_info {
	52	struct net_device *dev;
	53	};
	54
3aeb6617 JP	55	struct netdev_switch_notifier_fdb_info {
	56	struct netdev_switch_notifier_info info; /* must be first */
	57	const unsigned char *addr;
	58	u16 vid;
	59	};
	60
03bf0c28 JP	61	static inline struct net_device *
	62	netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info)
	63	{
	64	return info->dev;
	65	}
007f790c JP	66
	67	#ifdef CONFIG_NET_SWITCHDEV
	68
	69	int netdev_switch_parent_id_get(struct net_device *dev,
	70	struct netdev_phys_item_id *psid);
38dcf357	71	int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
03bf0c28 JP	72	int register_netdev_switch_notifier(struct notifier_block *nb);
	73	int unregister_netdev_switch_notifier(struct notifier_block *nb);
	74	int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
	75	struct netdev_switch_notifier_info *info);
8a44dbb2 RP	76	int netdev_switch_port_bridge_setlink(struct net_device *dev,
	77	struct nlmsghdr *nlh, u16 flags);
	78	int netdev_switch_port_bridge_dellink(struct net_device *dev,
	79	struct nlmsghdr *nlh, u16 flags);
	80	int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
	81	struct nlmsghdr *nlh, u16 flags);
	82	int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
	83	struct nlmsghdr *nlh, u16 flags);
5e8d9049	84	int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
f8f21471	85	u8 tos, u8 type, u32 nlflags, u32 tb_id);
5e8d9049 SF	86	int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
5e8d9049 SF	87	u8 tos, u8 type, u32 tb_id);
8e05fd71	88	void netdev_switch_fib_ipv4_abort(struct fib_info *fi);
5e8d9049	89
007f790c JP	90	#else
	91
	92	static inline int netdev_switch_parent_id_get(struct net_device *dev,
	93	struct netdev_phys_item_id *psid)
	94	{
	95	return -EOPNOTSUPP;
	96	}
	97
38dcf357 SF	98	static inline int netdev_switch_port_stp_update(struct net_device *dev,
	99	u8 state)
	100	{
	101	return -EOPNOTSUPP;
	102	}
	103
03bf0c28 JP	104	static inline int register_netdev_switch_notifier(struct notifier_block *nb)
	105	{
	106	return 0;
	107	}
	108
	109	static inline int unregister_netdev_switch_notifier(struct notifier_block *nb)
	110	{
	111	return 0;
	112	}
	113
	114	static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
27c00132	115	struct netdev_switch_notifier_info *info)
03bf0c28 JP	116	{
	117	return NOTIFY_DONE;
	118	}
	119
8a44dbb2 RP	120	static inline int netdev_switch_port_bridge_setlink(struct net_device *dev,
	121	struct nlmsghdr *nlh,
	122	u16 flags)
	123	{
	124	return -EOPNOTSUPP;
	125	}
	126
	127	static inline int netdev_switch_port_bridge_dellink(struct net_device *dev,
	128	struct nlmsghdr *nlh,
	129	u16 flags)
	130	{
	131	return -EOPNOTSUPP;
	132	}
	133
	134	static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
	135	struct nlmsghdr *nlh,
	136	u16 flags)
	137	{
	138	return 0;
	139	}
	140
	141	static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
	142	struct nlmsghdr *nlh,
	143	u16 flags)
	144	{
	145	return 0;
	146	}
	147
5e8d9049 SF	148	static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len,
5e8d9049 SF	149	struct fib_info *fi,
f8f21471 SF	150	u8 tos, u8 type,
f8f21471 SF	151	u32 nlflags, u32 tb_id)
5e8d9049 SF	152	{
	153	return 0;
	154	}
	155
	156	static inline int netdev_switch_fib_ipv4_del(u32 dst, int dst_len,
	157	struct fib_info *fi,
	158	u8 tos, u8 type, u32 tb_id)
	159	{
	160	return 0;
	161	}
	162
89650ad0	163	static inline void netdev_switch_fib_ipv4_abort(struct fib_info *fi)
8e05fd71 SF	164	{
	165	}
	166
007f790c JP	167	#endif
	168
	169	#endif /* _LINUX_SWITCHDEV_H_ */