[linux-block.git] / include / net / switchdev.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * include/net/switchdev.h - Switch device API
 * Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
 * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
 */
#ifndef _LINUX_SWITCHDEV_H_
#define _LINUX_SWITCHDEV_H_

#include <linux/netdevice.h>
#include <linux/notifier.h>
#include <linux/list.h>
#include <net/ip_fib.h>

#define SWITCHDEV_F_NO_RECURSE		BIT(0)
#define SWITCHDEV_F_SKIP_EOPNOTSUPP	BIT(1)
#define SWITCHDEV_F_DEFER		BIT(2)

enum switchdev_attr_id {
	SWITCHDEV_ATTR_ID_UNDEFINED,
	SWITCHDEV_ATTR_ID_PORT_STP_STATE,
	SWITCHDEV_ATTR_ID_PORT_MST_STATE,
	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
	SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
	SWITCHDEV_ATTR_ID_PORT_MROUTER,
	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL,
	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
	SWITCHDEV_ATTR_ID_BRIDGE_MST,
	SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
	SWITCHDEV_ATTR_ID_VLAN_MSTI,
};

struct switchdev_mst_state {
	u16 msti;
	u8 state;
};

struct switchdev_brport_flags {
	unsigned long val;
	unsigned long mask;
};

struct switchdev_vlan_msti {
	u16 vid;
	u16 msti;
};

struct switchdev_attr {
	struct net_device *orig_dev;
	enum switchdev_attr_id id;
	u32 flags;
	void *complete_priv;
	void (*complete)(struct net_device *dev, int err, void *priv);
	union {
		u8 stp_state;				/* PORT_STP_STATE */
		struct switchdev_mst_state mst_state;	/* PORT_MST_STATE */
		struct switchdev_brport_flags brport_flags; /* PORT_BRIDGE_FLAGS */
		bool mrouter;				/* PORT_MROUTER */
		clock_t ageing_time;			/* BRIDGE_AGEING_TIME */
		bool vlan_filtering;			/* BRIDGE_VLAN_FILTERING */
		u16 vlan_protocol;			/* BRIDGE_VLAN_PROTOCOL */
		bool mst;				/* BRIDGE_MST */
		bool mc_disabled;			/* MC_DISABLED */
		u8 mrp_port_role;			/* MRP_PORT_ROLE */
		struct switchdev_vlan_msti vlan_msti;	/* VLAN_MSTI */
	} u;
};

enum switchdev_obj_id {
	SWITCHDEV_OBJ_ID_UNDEFINED,
	SWITCHDEV_OBJ_ID_PORT_VLAN,
	SWITCHDEV_OBJ_ID_PORT_MDB,
	SWITCHDEV_OBJ_ID_HOST_MDB,
	SWITCHDEV_OBJ_ID_MRP,
	SWITCHDEV_OBJ_ID_RING_TEST_MRP,
	SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
	SWITCHDEV_OBJ_ID_RING_STATE_MRP,
	SWITCHDEV_OBJ_ID_IN_TEST_MRP,
	SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
	SWITCHDEV_OBJ_ID_IN_STATE_MRP,
};

struct switchdev_obj {
	struct list_head list;
	struct net_device *orig_dev;
	enum switchdev_obj_id id;
	u32 flags;
	void *complete_priv;
	void (*complete)(struct net_device *dev, int err, void *priv);
};

/* SWITCHDEV_OBJ_ID_PORT_VLAN */
struct switchdev_obj_port_vlan {
	struct switchdev_obj obj;
	u16 flags;
	u16 vid;
	/* If set, the notifier signifies a change of one of the following
	 * flags for a VLAN that already exists:
	 * - BRIDGE_VLAN_INFO_PVID
	 * - BRIDGE_VLAN_INFO_UNTAGGED
	 * Entries with BRIDGE_VLAN_INFO_BRENTRY unset are not notified at all.
	 */
	bool changed;
};

#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
	container_of((OBJ), struct switchdev_obj_port_vlan, obj)

/* SWITCHDEV_OBJ_ID_PORT_MDB */
struct switchdev_obj_port_mdb {
	struct switchdev_obj obj;
	unsigned char addr[ETH_ALEN];
	u16 vid;
};

#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
	container_of((OBJ), struct switchdev_obj_port_mdb, obj)


/* SWITCHDEV_OBJ_ID_MRP */
struct switchdev_obj_mrp {
	struct switchdev_obj obj;
	struct net_device *p_port;
	struct net_device *s_port;
	u32 ring_id;
	u16 prio;
};

#define SWITCHDEV_OBJ_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_mrp, obj)

/* SWITCHDEV_OBJ_ID_RING_TEST_MRP */
struct switchdev_obj_ring_test_mrp {
	struct switchdev_obj obj;
	/* The value is in us and a value of 0 represents to stop */
	u32 interval;
	u8 max_miss;
	u32 ring_id;
	u32 period;
	bool monitor;
};

#define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj)

/* SWICHDEV_OBJ_ID_RING_ROLE_MRP */
struct switchdev_obj_ring_role_mrp {
	struct switchdev_obj obj;
	u8 ring_role;
	u32 ring_id;
	u8 sw_backup;
};

#define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj)

struct switchdev_obj_ring_state_mrp {
	struct switchdev_obj obj;
	u8 ring_state;
	u32 ring_id;
};

#define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj)

/* SWITCHDEV_OBJ_ID_IN_TEST_MRP */
struct switchdev_obj_in_test_mrp {
	struct switchdev_obj obj;
	/* The value is in us and a value of 0 represents to stop */
	u32 interval;
	u32 in_id;
	u32 period;
	u8 max_miss;
};

#define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_in_test_mrp, obj)

/* SWICHDEV_OBJ_ID_IN_ROLE_MRP */
struct switchdev_obj_in_role_mrp {
	struct switchdev_obj obj;
	struct net_device *i_port;
	u32 ring_id;
	u16 in_id;
	u8 in_role;
	u8 sw_backup;
};

#define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_in_role_mrp, obj)

struct switchdev_obj_in_state_mrp {
	struct switchdev_obj obj;
	u32 in_id;
	u8 in_state;
};

#define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \
	container_of((OBJ), struct switchdev_obj_in_state_mrp, obj)

struct switchdev_brport {
	struct net_device *dev;
	const void *ctx;
	struct notifier_block *atomic_nb;
	struct notifier_block *blocking_nb;
	bool tx_fwd_offload;
};

enum switchdev_notifier_type {
	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
	SWITCHDEV_FDB_DEL_TO_BRIDGE,
	SWITCHDEV_FDB_ADD_TO_DEVICE,
	SWITCHDEV_FDB_DEL_TO_DEVICE,
	SWITCHDEV_FDB_OFFLOADED,
	SWITCHDEV_FDB_FLUSH_TO_BRIDGE,

	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */

	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
	SWITCHDEV_VXLAN_FDB_OFFLOADED,

	SWITCHDEV_BRPORT_OFFLOADED,
	SWITCHDEV_BRPORT_UNOFFLOADED,
	SWITCHDEV_BRPORT_REPLAY,
};

struct switchdev_notifier_info {
	struct net_device *dev;
	struct netlink_ext_ack *extack;
	const void *ctx;
};

/* Remember to update br_switchdev_fdb_populate() when adding
 * new members to this structure
 */
struct switchdev_notifier_fdb_info {
	struct switchdev_notifier_info info; /* must be first */
	const unsigned char *addr;
	u16 vid;
	u8 added_by_user:1,
	   is_local:1,
	   locked:1,
	   offloaded:1;
};

struct switchdev_notifier_port_obj_info {
	struct switchdev_notifier_info info; /* must be first */
	const struct switchdev_obj *obj;
	bool handled;
};

struct switchdev_notifier_port_attr_info {
	struct switchdev_notifier_info info; /* must be first */
	const struct switchdev_attr *attr;
	bool handled;
};

struct switchdev_notifier_brport_info {
	struct switchdev_notifier_info info; /* must be first */
	const struct switchdev_brport brport;
};

static inline struct net_device *
switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
{
	return info->dev;
}

static inline struct netlink_ext_ack *
switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
{
	return info->extack;
}

static inline bool
switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info *fdb_info)
{
	return !fdb_info->added_by_user && !fdb_info->is_local;
}

#ifdef CONFIG_NET_SWITCHDEV

int switchdev_bridge_port_offload(struct net_device *brport_dev,
				  struct net_device *dev, const void *ctx,
				  struct notifier_block *atomic_nb,
				  struct notifier_block *blocking_nb,
				  bool tx_fwd_offload,
				  struct netlink_ext_ack *extack);
void switchdev_bridge_port_unoffload(struct net_device *brport_dev,
				     const void *ctx,
				     struct notifier_block *atomic_nb,
				     struct notifier_block *blocking_nb);
int switchdev_bridge_port_replay(struct net_device *brport_dev,
				 struct net_device *dev, const void *ctx,
				 struct notifier_block *atomic_nb,
				 struct notifier_block *blocking_nb,
				 struct netlink_ext_ack *extack);

void switchdev_deferred_process(void);
int switchdev_port_attr_set(struct net_device *dev,
			    const struct switchdev_attr *attr,
			    struct netlink_ext_ack *extack);
bool switchdev_port_obj_act_is_deferred(struct net_device *dev,
					enum switchdev_notifier_type nt,
					const struct switchdev_obj *obj);
int switchdev_port_obj_add(struct net_device *dev,
			   const struct switchdev_obj *obj,
			   struct netlink_ext_ack *extack);
int switchdev_port_obj_del(struct net_device *dev,
			   const struct switchdev_obj *obj);

int register_switchdev_notifier(struct notifier_block *nb);
int unregister_switchdev_notifier(struct notifier_block *nb);
int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
			     struct switchdev_notifier_info *info,
			     struct netlink_ext_ack *extack);

int register_switchdev_blocking_notifier(struct notifier_block *nb);
int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
				      struct switchdev_notifier_info *info,
				      struct netlink_ext_ack *extack);

int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
		const struct switchdev_notifier_fdb_info *fdb_info,
		bool (*check_cb)(const struct net_device *dev),
		bool (*foreign_dev_check_cb)(const struct net_device *dev,
					     const struct net_device *foreign_dev),
		int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
			      unsigned long event, const void *ctx,
			      const struct switchdev_notifier_fdb_info *fdb_info));

int switchdev_handle_port_obj_add(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			int (*add_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj,
				      struct netlink_ext_ack *extack));
int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			bool (*foreign_dev_check_cb)(const struct net_device *dev,
						     const struct net_device *foreign_dev),
			int (*add_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj,
				      struct netlink_ext_ack *extack));
int switchdev_handle_port_obj_del(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			int (*del_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj));
int switchdev_handle_port_obj_del_foreign(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			bool (*foreign_dev_check_cb)(const struct net_device *dev,
						     const struct net_device *foreign_dev),
			int (*del_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj));

int switchdev_handle_port_attr_set(struct net_device *dev,
			struct switchdev_notifier_port_attr_info *port_attr_info,
			bool (*check_cb)(const struct net_device *dev),
			int (*set_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_attr *attr,
				      struct netlink_ext_ack *extack));
#else

static inline int
switchdev_bridge_port_offload(struct net_device *brport_dev,
			      struct net_device *dev, const void *ctx,
			      struct notifier_block *atomic_nb,
			      struct notifier_block *blocking_nb,
			      bool tx_fwd_offload,
			      struct netlink_ext_ack *extack)
{
	return -EOPNOTSUPP;
}

static inline void
switchdev_bridge_port_unoffload(struct net_device *brport_dev,
				const void *ctx,
				struct notifier_block *atomic_nb,
				struct notifier_block *blocking_nb)
{
}

static inline void switchdev_deferred_process(void)
{
}

static inline int switchdev_port_attr_set(struct net_device *dev,
					  const struct switchdev_attr *attr,
					  struct netlink_ext_ack *extack)
{
	return -EOPNOTSUPP;
}

static inline int switchdev_port_obj_add(struct net_device *dev,
					 const struct switchdev_obj *obj,
					 struct netlink_ext_ack *extack)
{
	return -EOPNOTSUPP;
}

static inline int switchdev_port_obj_del(struct net_device *dev,
					 const struct switchdev_obj *obj)
{
	return -EOPNOTSUPP;
}

static inline int register_switchdev_notifier(struct notifier_block *nb)
{
	return 0;
}

static inline int unregister_switchdev_notifier(struct notifier_block *nb)
{
	return 0;
}

static inline int call_switchdev_notifiers(unsigned long val,
					   struct net_device *dev,
					   struct switchdev_notifier_info *info,
					   struct netlink_ext_ack *extack)
{
	return NOTIFY_DONE;
}

static inline int
register_switchdev_blocking_notifier(struct notifier_block *nb)
{
	return 0;
}

static inline int
unregister_switchdev_blocking_notifier(struct notifier_block *nb)
{
	return 0;
}

static inline int
call_switchdev_blocking_notifiers(unsigned long val,
				  struct net_device *dev,
				  struct switchdev_notifier_info *info,
				  struct netlink_ext_ack *extack)
{
	return NOTIFY_DONE;
}

static inline int
switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
		const struct switchdev_notifier_fdb_info *fdb_info,
		bool (*check_cb)(const struct net_device *dev),
		bool (*foreign_dev_check_cb)(const struct net_device *dev,
					     const struct net_device *foreign_dev),
		int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
			      unsigned long event, const void *ctx,
			      const struct switchdev_notifier_fdb_info *fdb_info))
{
	return 0;
}

static inline int
switchdev_handle_port_obj_add(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			int (*add_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj,
				      struct netlink_ext_ack *extack))
{
	return 0;
}

static inline int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			bool (*foreign_dev_check_cb)(const struct net_device *dev,
						     const struct net_device *foreign_dev),
			int (*add_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj,
				      struct netlink_ext_ack *extack))
{
	return 0;
}

static inline int
switchdev_handle_port_obj_del(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			int (*del_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj))
{
	return 0;
}

static inline int
switchdev_handle_port_obj_del_foreign(struct net_device *dev,
			struct switchdev_notifier_port_obj_info *port_obj_info,
			bool (*check_cb)(const struct net_device *dev),
			bool (*foreign_dev_check_cb)(const struct net_device *dev,
						     const struct net_device *foreign_dev),
			int (*del_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_obj *obj))
{
	return 0;
}

static inline int
switchdev_handle_port_attr_set(struct net_device *dev,
			struct switchdev_notifier_port_attr_info *port_attr_info,
			bool (*check_cb)(const struct net_device *dev),
			int (*set_cb)(struct net_device *dev, const void *ctx,
				      const struct switchdev_attr *attr,
				      struct netlink_ext_ack *extack))
{
	return 0;
}
#endif

#endif /* _LINUX_SWITCHDEV_H_ */
Commit	Line	Data
	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
	2	/*
	3	* include/net/switchdev.h - Switch device API
	4	* Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
	5	* Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
	6	*/
	7	#ifndef _LINUX_SWITCHDEV_H_
	8	#define _LINUX_SWITCHDEV_H_
	9
	10	#include <linux/netdevice.h>
	11	#include <linux/notifier.h>
	12	#include <linux/list.h>
	13	#include <net/ip_fib.h>
	14
	15	#define SWITCHDEV_F_NO_RECURSE BIT(0)
	16	#define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1)
	17	#define SWITCHDEV_F_DEFER BIT(2)
	18
	19	enum switchdev_attr_id {
	20	SWITCHDEV_ATTR_ID_UNDEFINED,
	21	SWITCHDEV_ATTR_ID_PORT_STP_STATE,
	22	SWITCHDEV_ATTR_ID_PORT_MST_STATE,
	23	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
	24	SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
	25	SWITCHDEV_ATTR_ID_PORT_MROUTER,
	26	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
	27	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
	28	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL,
	29	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
	30	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
	31	SWITCHDEV_ATTR_ID_BRIDGE_MST,
	32	SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
	33	SWITCHDEV_ATTR_ID_VLAN_MSTI,
	34	};
	35
	36	struct switchdev_mst_state {
	37	u16 msti;
	38	u8 state;
	39	};
	40
	41	struct switchdev_brport_flags {
	42	unsigned long val;
	43	unsigned long mask;
	44	};
	45
	46	struct switchdev_vlan_msti {
	47	u16 vid;
	48	u16 msti;
	49	};
	50
	51	struct switchdev_attr {
	52	struct net_device *orig_dev;
	53	enum switchdev_attr_id id;
	54	u32 flags;
	55	void *complete_priv;
	56	void (complete)(struct net_device dev, int err, void *priv);
	57	union {
	58	u8 stp_state; /* PORT_STP_STATE */
	59	struct switchdev_mst_state mst_state; /* PORT_MST_STATE */
	60	struct switchdev_brport_flags brport_flags; /* PORT_BRIDGE_FLAGS */
	61	bool mrouter; /* PORT_MROUTER */
	62	clock_t ageing_time; /* BRIDGE_AGEING_TIME */
	63	bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */
	64	u16 vlan_protocol; /* BRIDGE_VLAN_PROTOCOL */
	65	bool mst; /* BRIDGE_MST */
	66	bool mc_disabled; /* MC_DISABLED */
	67	u8 mrp_port_role; /* MRP_PORT_ROLE */
	68	struct switchdev_vlan_msti vlan_msti; /* VLAN_MSTI */
	69	} u;
	70	};
	71
	72	enum switchdev_obj_id {
	73	SWITCHDEV_OBJ_ID_UNDEFINED,
	74	SWITCHDEV_OBJ_ID_PORT_VLAN,
	75	SWITCHDEV_OBJ_ID_PORT_MDB,
	76	SWITCHDEV_OBJ_ID_HOST_MDB,
	77	SWITCHDEV_OBJ_ID_MRP,
	78	SWITCHDEV_OBJ_ID_RING_TEST_MRP,
	79	SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
	80	SWITCHDEV_OBJ_ID_RING_STATE_MRP,
	81	SWITCHDEV_OBJ_ID_IN_TEST_MRP,
	82	SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
	83	SWITCHDEV_OBJ_ID_IN_STATE_MRP,
	84	};
	85
	86	struct switchdev_obj {
	87	struct list_head list;
	88	struct net_device *orig_dev;
	89	enum switchdev_obj_id id;
	90	u32 flags;
	91	void *complete_priv;
	92	void (complete)(struct net_device dev, int err, void *priv);
	93	};
	94
	95	/* SWITCHDEV_OBJ_ID_PORT_VLAN */
	96	struct switchdev_obj_port_vlan {
	97	struct switchdev_obj obj;
	98	u16 flags;
	99	u16 vid;
	100	/* If set, the notifier signifies a change of one of the following
	101	* flags for a VLAN that already exists:
	102	* - BRIDGE_VLAN_INFO_PVID
	103	* - BRIDGE_VLAN_INFO_UNTAGGED
	104	* Entries with BRIDGE_VLAN_INFO_BRENTRY unset are not notified at all.
	105	*/
	106	bool changed;
	107	};
	108
	109	#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
	110	container_of((OBJ), struct switchdev_obj_port_vlan, obj)
	111
	112	/* SWITCHDEV_OBJ_ID_PORT_MDB */
	113	struct switchdev_obj_port_mdb {
	114	struct switchdev_obj obj;
	115	unsigned char addr[ETH_ALEN];
	116	u16 vid;
	117	};
	118
	119	#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
	120	container_of((OBJ), struct switchdev_obj_port_mdb, obj)
	121
	122
	123	/* SWITCHDEV_OBJ_ID_MRP */
	124	struct switchdev_obj_mrp {
	125	struct switchdev_obj obj;
	126	struct net_device *p_port;
	127	struct net_device *s_port;
	128	u32 ring_id;
	129	u16 prio;
	130	};
	131
	132	#define SWITCHDEV_OBJ_MRP(OBJ) \
	133	container_of((OBJ), struct switchdev_obj_mrp, obj)
	134
	135	/* SWITCHDEV_OBJ_ID_RING_TEST_MRP */
	136	struct switchdev_obj_ring_test_mrp {
	137	struct switchdev_obj obj;
	138	/* The value is in us and a value of 0 represents to stop */
	139	u32 interval;
	140	u8 max_miss;
	141	u32 ring_id;
	142	u32 period;
	143	bool monitor;
	144	};
	145
	146	#define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \
	147	container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj)
	148
	149	/* SWICHDEV_OBJ_ID_RING_ROLE_MRP */
	150	struct switchdev_obj_ring_role_mrp {
	151	struct switchdev_obj obj;
	152	u8 ring_role;
	153	u32 ring_id;
	154	u8 sw_backup;
	155	};
	156
	157	#define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \
	158	container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj)
	159
	160	struct switchdev_obj_ring_state_mrp {
	161	struct switchdev_obj obj;
	162	u8 ring_state;
	163	u32 ring_id;
	164	};
	165
	166	#define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \
	167	container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj)
	168
	169	/* SWITCHDEV_OBJ_ID_IN_TEST_MRP */
	170	struct switchdev_obj_in_test_mrp {
	171	struct switchdev_obj obj;
	172	/* The value is in us and a value of 0 represents to stop */
	173	u32 interval;
	174	u32 in_id;
	175	u32 period;
	176	u8 max_miss;
	177	};
	178
	179	#define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \
	180	container_of((OBJ), struct switchdev_obj_in_test_mrp, obj)
	181
	182	/* SWICHDEV_OBJ_ID_IN_ROLE_MRP */
	183	struct switchdev_obj_in_role_mrp {
	184	struct switchdev_obj obj;
	185	struct net_device *i_port;
	186	u32 ring_id;
	187	u16 in_id;
	188	u8 in_role;
	189	u8 sw_backup;
	190	};
	191
	192	#define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \
	193	container_of((OBJ), struct switchdev_obj_in_role_mrp, obj)
	194
	195	struct switchdev_obj_in_state_mrp {
	196	struct switchdev_obj obj;
	197	u32 in_id;
	198	u8 in_state;
	199	};
	200
	201	#define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \
	202	container_of((OBJ), struct switchdev_obj_in_state_mrp, obj)
	203
	204	struct switchdev_brport {
	205	struct net_device *dev;
	206	const void *ctx;
	207	struct notifier_block *atomic_nb;
	208	struct notifier_block *blocking_nb;
	209	bool tx_fwd_offload;
	210	};
	211
	212	enum switchdev_notifier_type {
	213	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
	214	SWITCHDEV_FDB_DEL_TO_BRIDGE,
	215	SWITCHDEV_FDB_ADD_TO_DEVICE,
	216	SWITCHDEV_FDB_DEL_TO_DEVICE,
	217	SWITCHDEV_FDB_OFFLOADED,
	218	SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
	219
	220	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
	221	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
	222	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
	223
	224	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
	225	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
	226	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
	227	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
	228	SWITCHDEV_VXLAN_FDB_OFFLOADED,
	229
	230	SWITCHDEV_BRPORT_OFFLOADED,
	231	SWITCHDEV_BRPORT_UNOFFLOADED,
	232	SWITCHDEV_BRPORT_REPLAY,
	233	};
	234
	235	struct switchdev_notifier_info {
	236	struct net_device *dev;
	237	struct netlink_ext_ack *extack;
	238	const void *ctx;
	239	};
	240
	241	/* Remember to update br_switchdev_fdb_populate() when adding
	242	* new members to this structure
	243	*/
	244	struct switchdev_notifier_fdb_info {
	245	struct switchdev_notifier_info info; /* must be first */
	246	const unsigned char *addr;
	247	u16 vid;
	248	u8 added_by_user:1,
	249	is_local:1,
	250	locked:1,
	251	offloaded:1;
	252	};
	253
	254	struct switchdev_notifier_port_obj_info {
	255	struct switchdev_notifier_info info; /* must be first */
	256	const struct switchdev_obj *obj;
	257	bool handled;
	258	};
	259
	260	struct switchdev_notifier_port_attr_info {
	261	struct switchdev_notifier_info info; /* must be first */
	262	const struct switchdev_attr *attr;
	263	bool handled;
	264	};
	265
	266	struct switchdev_notifier_brport_info {
	267	struct switchdev_notifier_info info; /* must be first */
	268	const struct switchdev_brport brport;
	269	};
	270
	271	static inline struct net_device *
	272	switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
	273	{
	274	return info->dev;
	275	}
	276
	277	static inline struct netlink_ext_ack *
	278	switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
	279	{
	280	return info->extack;
	281	}
	282
	283	static inline bool
	284	switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info *fdb_info)
	285	{
	286	return !fdb_info->added_by_user && !fdb_info->is_local;
	287	}
	288
	289	#ifdef CONFIG_NET_SWITCHDEV
	290
	291	int switchdev_bridge_port_offload(struct net_device *brport_dev,
	292	struct net_device dev, const void ctx,
	293	struct notifier_block *atomic_nb,
	294	struct notifier_block *blocking_nb,
	295	bool tx_fwd_offload,
	296	struct netlink_ext_ack *extack);
	297	void switchdev_bridge_port_unoffload(struct net_device *brport_dev,
	298	const void *ctx,
	299	struct notifier_block *atomic_nb,
	300	struct notifier_block *blocking_nb);
	301	int switchdev_bridge_port_replay(struct net_device *brport_dev,
	302	struct net_device dev, const void ctx,
	303	struct notifier_block *atomic_nb,
	304	struct notifier_block *blocking_nb,
	305	struct netlink_ext_ack *extack);
	306
	307	void switchdev_deferred_process(void);
	308	int switchdev_port_attr_set(struct net_device *dev,
	309	const struct switchdev_attr *attr,
	310	struct netlink_ext_ack *extack);
	311	bool switchdev_port_obj_act_is_deferred(struct net_device *dev,
	312	enum switchdev_notifier_type nt,
	313	const struct switchdev_obj *obj);
	314	int switchdev_port_obj_add(struct net_device *dev,
	315	const struct switchdev_obj *obj,
	316	struct netlink_ext_ack *extack);
	317	int switchdev_port_obj_del(struct net_device *dev,
	318	const struct switchdev_obj *obj);
	319
	320	int register_switchdev_notifier(struct notifier_block *nb);
	321	int unregister_switchdev_notifier(struct notifier_block *nb);
	322	int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
	323	struct switchdev_notifier_info *info,
	324	struct netlink_ext_ack *extack);
	325
	326	int register_switchdev_blocking_notifier(struct notifier_block *nb);
	327	int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
	328	int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
	329	struct switchdev_notifier_info *info,
	330	struct netlink_ext_ack *extack);
	331
	332	int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
	333	const struct switchdev_notifier_fdb_info *fdb_info,
	334	bool (check_cb)(const struct net_device dev),
	335	bool (foreign_dev_check_cb)(const struct net_device dev,
	336	const struct net_device *foreign_dev),
	337	int (mod_cb)(struct net_device dev, struct net_device *orig_dev,
	338	unsigned long event, const void *ctx,
	339	const struct switchdev_notifier_fdb_info *fdb_info));
	340
	341	int switchdev_handle_port_obj_add(struct net_device *dev,
	342	struct switchdev_notifier_port_obj_info *port_obj_info,
	343	bool (check_cb)(const struct net_device dev),
	344	int (add_cb)(struct net_device dev, const void *ctx,
	345	const struct switchdev_obj *obj,
	346	struct netlink_ext_ack *extack));
	347	int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
	348	struct switchdev_notifier_port_obj_info *port_obj_info,
	349	bool (check_cb)(const struct net_device dev),
	350	bool (foreign_dev_check_cb)(const struct net_device dev,
	351	const struct net_device *foreign_dev),
	352	int (add_cb)(struct net_device dev, const void *ctx,
	353	const struct switchdev_obj *obj,
	354	struct netlink_ext_ack *extack));
	355	int switchdev_handle_port_obj_del(struct net_device *dev,
	356	struct switchdev_notifier_port_obj_info *port_obj_info,
	357	bool (check_cb)(const struct net_device dev),
	358	int (del_cb)(struct net_device dev, const void *ctx,
	359	const struct switchdev_obj *obj));
	360	int switchdev_handle_port_obj_del_foreign(struct net_device *dev,
	361	struct switchdev_notifier_port_obj_info *port_obj_info,
	362	bool (check_cb)(const struct net_device dev),
	363	bool (foreign_dev_check_cb)(const struct net_device dev,
	364	const struct net_device *foreign_dev),
	365	int (del_cb)(struct net_device dev, const void *ctx,
	366	const struct switchdev_obj *obj));
	367
	368	int switchdev_handle_port_attr_set(struct net_device *dev,
	369	struct switchdev_notifier_port_attr_info *port_attr_info,
	370	bool (check_cb)(const struct net_device dev),
	371	int (set_cb)(struct net_device dev, const void *ctx,
	372	const struct switchdev_attr *attr,
	373	struct netlink_ext_ack *extack));
	374	#else
	375
	376	static inline int
	377	switchdev_bridge_port_offload(struct net_device *brport_dev,
	378	struct net_device dev, const void ctx,
	379	struct notifier_block *atomic_nb,
	380	struct notifier_block *blocking_nb,
	381	bool tx_fwd_offload,
	382	struct netlink_ext_ack *extack)
	383	{
	384	return -EOPNOTSUPP;
	385	}
	386
	387	static inline void
	388	switchdev_bridge_port_unoffload(struct net_device *brport_dev,
	389	const void *ctx,
	390	struct notifier_block *atomic_nb,
	391	struct notifier_block *blocking_nb)
	392	{
	393	}
	394
	395	static inline void switchdev_deferred_process(void)
	396	{
	397	}
	398
	399	static inline int switchdev_port_attr_set(struct net_device *dev,
	400	const struct switchdev_attr *attr,
	401	struct netlink_ext_ack *extack)
	402	{
	403	return -EOPNOTSUPP;
	404	}
	405
	406	static inline int switchdev_port_obj_add(struct net_device *dev,
	407	const struct switchdev_obj *obj,
	408	struct netlink_ext_ack *extack)
	409	{
	410	return -EOPNOTSUPP;
	411	}
	412
	413	static inline int switchdev_port_obj_del(struct net_device *dev,
	414	const struct switchdev_obj *obj)
	415	{
	416	return -EOPNOTSUPP;
	417	}
	418
	419	static inline int register_switchdev_notifier(struct notifier_block *nb)
	420	{
	421	return 0;
	422	}
	423
	424	static inline int unregister_switchdev_notifier(struct notifier_block *nb)
	425	{
	426	return 0;
	427	}
	428
	429	static inline int call_switchdev_notifiers(unsigned long val,
	430	struct net_device *dev,
	431	struct switchdev_notifier_info *info,
	432	struct netlink_ext_ack *extack)
	433	{
	434	return NOTIFY_DONE;
	435	}
	436
	437	static inline int
	438	register_switchdev_blocking_notifier(struct notifier_block *nb)
	439	{
	440	return 0;
	441	}
	442
	443	static inline int
	444	unregister_switchdev_blocking_notifier(struct notifier_block *nb)
	445	{
	446	return 0;
	447	}
	448
	449	static inline int
	450	call_switchdev_blocking_notifiers(unsigned long val,
	451	struct net_device *dev,
	452	struct switchdev_notifier_info *info,
	453	struct netlink_ext_ack *extack)
	454	{
	455	return NOTIFY_DONE;
	456	}
	457
	458	static inline int
	459	switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
	460	const struct switchdev_notifier_fdb_info *fdb_info,
	461	bool (check_cb)(const struct net_device dev),
	462	bool (foreign_dev_check_cb)(const struct net_device dev,
	463	const struct net_device *foreign_dev),
	464	int (mod_cb)(struct net_device dev, struct net_device *orig_dev,
	465	unsigned long event, const void *ctx,
	466	const struct switchdev_notifier_fdb_info *fdb_info))
	467	{
	468	return 0;
	469	}
	470
	471	static inline int
	472	switchdev_handle_port_obj_add(struct net_device *dev,
	473	struct switchdev_notifier_port_obj_info *port_obj_info,
	474	bool (check_cb)(const struct net_device dev),
	475	int (add_cb)(struct net_device dev, const void *ctx,
	476	const struct switchdev_obj *obj,
	477	struct netlink_ext_ack *extack))
	478	{
	479	return 0;
	480	}
	481
	482	static inline int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
	483	struct switchdev_notifier_port_obj_info *port_obj_info,
	484	bool (check_cb)(const struct net_device dev),
	485	bool (foreign_dev_check_cb)(const struct net_device dev,
	486	const struct net_device *foreign_dev),
	487	int (add_cb)(struct net_device dev, const void *ctx,
	488	const struct switchdev_obj *obj,
	489	struct netlink_ext_ack *extack))
	490	{
	491	return 0;
	492	}
	493
	494	static inline int
	495	switchdev_handle_port_obj_del(struct net_device *dev,
	496	struct switchdev_notifier_port_obj_info *port_obj_info,
	497	bool (check_cb)(const struct net_device dev),
	498	int (del_cb)(struct net_device dev, const void *ctx,
	499	const struct switchdev_obj *obj))
	500	{
	501	return 0;
	502	}
	503
	504	static inline int
	505	switchdev_handle_port_obj_del_foreign(struct net_device *dev,
	506	struct switchdev_notifier_port_obj_info *port_obj_info,
	507	bool (check_cb)(const struct net_device dev),
	508	bool (foreign_dev_check_cb)(const struct net_device dev,
	509	const struct net_device *foreign_dev),
	510	int (del_cb)(struct net_device dev, const void *ctx,
	511	const struct switchdev_obj *obj))
	512	{
	513	return 0;
	514	}
	515
	516	static inline int
	517	switchdev_handle_port_attr_set(struct net_device *dev,
	518	struct switchdev_notifier_port_attr_info *port_attr_info,
	519	bool (check_cb)(const struct net_device dev),
	520	int (set_cb)(struct net_device dev, const void *ctx,
	521	const struct switchdev_attr *attr,
	522	struct netlink_ext_ack *extack))
	523	{
	524	return 0;
	525	}
	526	#endif
	527
	528	#endif /* _LINUX_SWITCHDEV_H_ */