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v5.4
  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
 19struct switchdev_trans {
 20	bool ph_prepare;
 21};
 22
 23static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
 24{
 25	return trans && trans->ph_prepare;
 26}
 27
 28static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
 29{
 30	return trans && !trans->ph_prepare;
 31}
 32
 33enum switchdev_attr_id {
 34	SWITCHDEV_ATTR_ID_UNDEFINED,
 35	SWITCHDEV_ATTR_ID_PORT_STP_STATE,
 36	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
 37	SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
 38	SWITCHDEV_ATTR_ID_PORT_MROUTER,
 39	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
 40	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
 
 41	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
 42	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
 
 
 
 
 
 
 43};
 44
 45struct switchdev_attr {
 46	struct net_device *orig_dev;
 47	enum switchdev_attr_id id;
 48	u32 flags;
 49	void *complete_priv;
 50	void (*complete)(struct net_device *dev, int err, void *priv);
 51	union {
 52		u8 stp_state;				/* PORT_STP_STATE */
 53		unsigned long brport_flags;		/* PORT_{PRE}_BRIDGE_FLAGS */
 54		bool mrouter;				/* PORT_MROUTER */
 55		clock_t ageing_time;			/* BRIDGE_AGEING_TIME */
 56		bool vlan_filtering;			/* BRIDGE_VLAN_FILTERING */
 
 57		bool mc_disabled;			/* MC_DISABLED */
 
 58	} u;
 59};
 60
 61enum switchdev_obj_id {
 62	SWITCHDEV_OBJ_ID_UNDEFINED,
 63	SWITCHDEV_OBJ_ID_PORT_VLAN,
 64	SWITCHDEV_OBJ_ID_PORT_MDB,
 65	SWITCHDEV_OBJ_ID_HOST_MDB,
 
 
 
 
 
 
 
 66};
 67
 68struct switchdev_obj {
 
 69	struct net_device *orig_dev;
 70	enum switchdev_obj_id id;
 71	u32 flags;
 72	void *complete_priv;
 73	void (*complete)(struct net_device *dev, int err, void *priv);
 74};
 75
 76/* SWITCHDEV_OBJ_ID_PORT_VLAN */
 77struct switchdev_obj_port_vlan {
 78	struct switchdev_obj obj;
 79	u16 flags;
 80	u16 vid_begin;
 81	u16 vid_end;
 82};
 83
 84#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
 85	container_of((OBJ), struct switchdev_obj_port_vlan, obj)
 86
 87/* SWITCHDEV_OBJ_ID_PORT_MDB */
 88struct switchdev_obj_port_mdb {
 89	struct switchdev_obj obj;
 90	unsigned char addr[ETH_ALEN];
 91	u16 vid;
 92};
 93
 94#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
 95	container_of((OBJ), struct switchdev_obj_port_mdb, obj)
 96
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 97typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
 98
 99enum switchdev_notifier_type {
100	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
101	SWITCHDEV_FDB_DEL_TO_BRIDGE,
102	SWITCHDEV_FDB_ADD_TO_DEVICE,
103	SWITCHDEV_FDB_DEL_TO_DEVICE,
104	SWITCHDEV_FDB_OFFLOADED,
 
105
106	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
107	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
108	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
109
110	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
111	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
112	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
113	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
114	SWITCHDEV_VXLAN_FDB_OFFLOADED,
115};
116
117struct switchdev_notifier_info {
118	struct net_device *dev;
119	struct netlink_ext_ack *extack;
 
120};
121
122struct switchdev_notifier_fdb_info {
123	struct switchdev_notifier_info info; /* must be first */
124	const unsigned char *addr;
125	u16 vid;
126	u8 added_by_user:1,
 
127	   offloaded:1;
128};
129
130struct switchdev_notifier_port_obj_info {
131	struct switchdev_notifier_info info; /* must be first */
132	const struct switchdev_obj *obj;
133	struct switchdev_trans *trans;
134	bool handled;
135};
136
137struct switchdev_notifier_port_attr_info {
138	struct switchdev_notifier_info info; /* must be first */
139	const struct switchdev_attr *attr;
140	struct switchdev_trans *trans;
141	bool handled;
142};
143
144static inline struct net_device *
145switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
146{
147	return info->dev;
148}
149
150static inline struct netlink_ext_ack *
151switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
152{
153	return info->extack;
154}
155
156#ifdef CONFIG_NET_SWITCHDEV
157
158void switchdev_deferred_process(void);
159int switchdev_port_attr_set(struct net_device *dev,
160			    const struct switchdev_attr *attr);
 
161int switchdev_port_obj_add(struct net_device *dev,
162			   const struct switchdev_obj *obj,
163			   struct netlink_ext_ack *extack);
164int switchdev_port_obj_del(struct net_device *dev,
165			   const struct switchdev_obj *obj);
166
167int register_switchdev_notifier(struct notifier_block *nb);
168int unregister_switchdev_notifier(struct notifier_block *nb);
169int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
170			     struct switchdev_notifier_info *info,
171			     struct netlink_ext_ack *extack);
172
173int register_switchdev_blocking_notifier(struct notifier_block *nb);
174int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
175int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
176				      struct switchdev_notifier_info *info,
177				      struct netlink_ext_ack *extack);
178
179void switchdev_port_fwd_mark_set(struct net_device *dev,
180				 struct net_device *group_dev,
181				 bool joining);
182
183int switchdev_handle_port_obj_add(struct net_device *dev,
184			struct switchdev_notifier_port_obj_info *port_obj_info,
185			bool (*check_cb)(const struct net_device *dev),
186			int (*add_cb)(struct net_device *dev,
187				      const struct switchdev_obj *obj,
188				      struct switchdev_trans *trans,
189				      struct netlink_ext_ack *extack));
190int switchdev_handle_port_obj_del(struct net_device *dev,
191			struct switchdev_notifier_port_obj_info *port_obj_info,
192			bool (*check_cb)(const struct net_device *dev),
193			int (*del_cb)(struct net_device *dev,
194				      const struct switchdev_obj *obj));
195
196int switchdev_handle_port_attr_set(struct net_device *dev,
197			struct switchdev_notifier_port_attr_info *port_attr_info,
198			bool (*check_cb)(const struct net_device *dev),
199			int (*set_cb)(struct net_device *dev,
200				      const struct switchdev_attr *attr,
201				      struct switchdev_trans *trans));
202#else
203
204static inline void switchdev_deferred_process(void)
205{
206}
207
208static inline int switchdev_port_attr_set(struct net_device *dev,
209					  const struct switchdev_attr *attr)
 
210{
211	return -EOPNOTSUPP;
212}
213
214static inline int switchdev_port_obj_add(struct net_device *dev,
215					 const struct switchdev_obj *obj,
216					 struct netlink_ext_ack *extack)
217{
218	return -EOPNOTSUPP;
219}
220
221static inline int switchdev_port_obj_del(struct net_device *dev,
222					 const struct switchdev_obj *obj)
223{
224	return -EOPNOTSUPP;
225}
226
227static inline int register_switchdev_notifier(struct notifier_block *nb)
228{
229	return 0;
230}
231
232static inline int unregister_switchdev_notifier(struct notifier_block *nb)
233{
234	return 0;
235}
236
237static inline int call_switchdev_notifiers(unsigned long val,
238					   struct net_device *dev,
239					   struct switchdev_notifier_info *info,
240					   struct netlink_ext_ack *extack)
241{
242	return NOTIFY_DONE;
243}
244
245static inline int
246register_switchdev_blocking_notifier(struct notifier_block *nb)
247{
248	return 0;
249}
250
251static inline int
252unregister_switchdev_blocking_notifier(struct notifier_block *nb)
253{
254	return 0;
255}
256
257static inline int
258call_switchdev_blocking_notifiers(unsigned long val,
259				  struct net_device *dev,
260				  struct switchdev_notifier_info *info,
261				  struct netlink_ext_ack *extack)
262{
263	return NOTIFY_DONE;
264}
265
266static inline int
267switchdev_handle_port_obj_add(struct net_device *dev,
268			struct switchdev_notifier_port_obj_info *port_obj_info,
269			bool (*check_cb)(const struct net_device *dev),
270			int (*add_cb)(struct net_device *dev,
271				      const struct switchdev_obj *obj,
272				      struct switchdev_trans *trans,
273				      struct netlink_ext_ack *extack))
274{
275	return 0;
276}
277
278static inline int
279switchdev_handle_port_obj_del(struct net_device *dev,
280			struct switchdev_notifier_port_obj_info *port_obj_info,
281			bool (*check_cb)(const struct net_device *dev),
282			int (*del_cb)(struct net_device *dev,
283				      const struct switchdev_obj *obj))
284{
285	return 0;
286}
287
288static inline int
289switchdev_handle_port_attr_set(struct net_device *dev,
290			struct switchdev_notifier_port_attr_info *port_attr_info,
291			bool (*check_cb)(const struct net_device *dev),
292			int (*set_cb)(struct net_device *dev,
293				      const struct switchdev_attr *attr,
294				      struct switchdev_trans *trans))
295{
296	return 0;
297}
298#endif
299
300#endif /* _LINUX_SWITCHDEV_H_ */
v5.14.15
  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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 19enum switchdev_attr_id {
 20	SWITCHDEV_ATTR_ID_UNDEFINED,
 21	SWITCHDEV_ATTR_ID_PORT_STP_STATE,
 22	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
 23	SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
 24	SWITCHDEV_ATTR_ID_PORT_MROUTER,
 25	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
 26	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
 27	SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL,
 28	SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
 29	SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
 30	SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
 31};
 32
 33struct switchdev_brport_flags {
 34	unsigned long val;
 35	unsigned long mask;
 36};
 37
 38struct switchdev_attr {
 39	struct net_device *orig_dev;
 40	enum switchdev_attr_id id;
 41	u32 flags;
 42	void *complete_priv;
 43	void (*complete)(struct net_device *dev, int err, void *priv);
 44	union {
 45		u8 stp_state;				/* PORT_STP_STATE */
 46		struct switchdev_brport_flags brport_flags; /* PORT_BRIDGE_FLAGS */
 47		bool mrouter;				/* PORT_MROUTER */
 48		clock_t ageing_time;			/* BRIDGE_AGEING_TIME */
 49		bool vlan_filtering;			/* BRIDGE_VLAN_FILTERING */
 50		u16 vlan_protocol;			/* BRIDGE_VLAN_PROTOCOL */
 51		bool mc_disabled;			/* MC_DISABLED */
 52		u8 mrp_port_role;			/* MRP_PORT_ROLE */
 53	} u;
 54};
 55
 56enum switchdev_obj_id {
 57	SWITCHDEV_OBJ_ID_UNDEFINED,
 58	SWITCHDEV_OBJ_ID_PORT_VLAN,
 59	SWITCHDEV_OBJ_ID_PORT_MDB,
 60	SWITCHDEV_OBJ_ID_HOST_MDB,
 61	SWITCHDEV_OBJ_ID_MRP,
 62	SWITCHDEV_OBJ_ID_RING_TEST_MRP,
 63	SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
 64	SWITCHDEV_OBJ_ID_RING_STATE_MRP,
 65	SWITCHDEV_OBJ_ID_IN_TEST_MRP,
 66	SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
 67	SWITCHDEV_OBJ_ID_IN_STATE_MRP,
 68};
 69
 70struct switchdev_obj {
 71	struct list_head list;
 72	struct net_device *orig_dev;
 73	enum switchdev_obj_id id;
 74	u32 flags;
 75	void *complete_priv;
 76	void (*complete)(struct net_device *dev, int err, void *priv);
 77};
 78
 79/* SWITCHDEV_OBJ_ID_PORT_VLAN */
 80struct switchdev_obj_port_vlan {
 81	struct switchdev_obj obj;
 82	u16 flags;
 83	u16 vid;
 
 84};
 85
 86#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
 87	container_of((OBJ), struct switchdev_obj_port_vlan, obj)
 88
 89/* SWITCHDEV_OBJ_ID_PORT_MDB */
 90struct switchdev_obj_port_mdb {
 91	struct switchdev_obj obj;
 92	unsigned char addr[ETH_ALEN];
 93	u16 vid;
 94};
 95
 96#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
 97	container_of((OBJ), struct switchdev_obj_port_mdb, obj)
 98
 99
100/* SWITCHDEV_OBJ_ID_MRP */
101struct switchdev_obj_mrp {
102	struct switchdev_obj obj;
103	struct net_device *p_port;
104	struct net_device *s_port;
105	u32 ring_id;
106	u16 prio;
107};
108
109#define SWITCHDEV_OBJ_MRP(OBJ) \
110	container_of((OBJ), struct switchdev_obj_mrp, obj)
111
112/* SWITCHDEV_OBJ_ID_RING_TEST_MRP */
113struct switchdev_obj_ring_test_mrp {
114	struct switchdev_obj obj;
115	/* The value is in us and a value of 0 represents to stop */
116	u32 interval;
117	u8 max_miss;
118	u32 ring_id;
119	u32 period;
120	bool monitor;
121};
122
123#define SWITCHDEV_OBJ_RING_TEST_MRP(OBJ) \
124	container_of((OBJ), struct switchdev_obj_ring_test_mrp, obj)
125
126/* SWICHDEV_OBJ_ID_RING_ROLE_MRP */
127struct switchdev_obj_ring_role_mrp {
128	struct switchdev_obj obj;
129	u8 ring_role;
130	u32 ring_id;
131	u8 sw_backup;
132};
133
134#define SWITCHDEV_OBJ_RING_ROLE_MRP(OBJ) \
135	container_of((OBJ), struct switchdev_obj_ring_role_mrp, obj)
136
137struct switchdev_obj_ring_state_mrp {
138	struct switchdev_obj obj;
139	u8 ring_state;
140	u32 ring_id;
141};
142
143#define SWITCHDEV_OBJ_RING_STATE_MRP(OBJ) \
144	container_of((OBJ), struct switchdev_obj_ring_state_mrp, obj)
145
146/* SWITCHDEV_OBJ_ID_IN_TEST_MRP */
147struct switchdev_obj_in_test_mrp {
148	struct switchdev_obj obj;
149	/* The value is in us and a value of 0 represents to stop */
150	u32 interval;
151	u32 in_id;
152	u32 period;
153	u8 max_miss;
154};
155
156#define SWITCHDEV_OBJ_IN_TEST_MRP(OBJ) \
157	container_of((OBJ), struct switchdev_obj_in_test_mrp, obj)
158
159/* SWICHDEV_OBJ_ID_IN_ROLE_MRP */
160struct switchdev_obj_in_role_mrp {
161	struct switchdev_obj obj;
162	struct net_device *i_port;
163	u32 ring_id;
164	u16 in_id;
165	u8 in_role;
166	u8 sw_backup;
167};
168
169#define SWITCHDEV_OBJ_IN_ROLE_MRP(OBJ) \
170	container_of((OBJ), struct switchdev_obj_in_role_mrp, obj)
171
172struct switchdev_obj_in_state_mrp {
173	struct switchdev_obj obj;
174	u32 in_id;
175	u8 in_state;
176};
177
178#define SWITCHDEV_OBJ_IN_STATE_MRP(OBJ) \
179	container_of((OBJ), struct switchdev_obj_in_state_mrp, obj)
180
181typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
182
183enum switchdev_notifier_type {
184	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
185	SWITCHDEV_FDB_DEL_TO_BRIDGE,
186	SWITCHDEV_FDB_ADD_TO_DEVICE,
187	SWITCHDEV_FDB_DEL_TO_DEVICE,
188	SWITCHDEV_FDB_OFFLOADED,
189	SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
190
191	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
192	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
193	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
194
195	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
196	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
197	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
198	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
199	SWITCHDEV_VXLAN_FDB_OFFLOADED,
200};
201
202struct switchdev_notifier_info {
203	struct net_device *dev;
204	struct netlink_ext_ack *extack;
205	const void *ctx;
206};
207
208struct switchdev_notifier_fdb_info {
209	struct switchdev_notifier_info info; /* must be first */
210	const unsigned char *addr;
211	u16 vid;
212	u8 added_by_user:1,
213	   is_local:1,
214	   offloaded:1;
215};
216
217struct switchdev_notifier_port_obj_info {
218	struct switchdev_notifier_info info; /* must be first */
219	const struct switchdev_obj *obj;
 
220	bool handled;
221};
222
223struct switchdev_notifier_port_attr_info {
224	struct switchdev_notifier_info info; /* must be first */
225	const struct switchdev_attr *attr;
 
226	bool handled;
227};
228
229static inline struct net_device *
230switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
231{
232	return info->dev;
233}
234
235static inline struct netlink_ext_ack *
236switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
237{
238	return info->extack;
239}
240
241#ifdef CONFIG_NET_SWITCHDEV
242
243void switchdev_deferred_process(void);
244int switchdev_port_attr_set(struct net_device *dev,
245			    const struct switchdev_attr *attr,
246			    struct netlink_ext_ack *extack);
247int switchdev_port_obj_add(struct net_device *dev,
248			   const struct switchdev_obj *obj,
249			   struct netlink_ext_ack *extack);
250int switchdev_port_obj_del(struct net_device *dev,
251			   const struct switchdev_obj *obj);
252
253int register_switchdev_notifier(struct notifier_block *nb);
254int unregister_switchdev_notifier(struct notifier_block *nb);
255int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
256			     struct switchdev_notifier_info *info,
257			     struct netlink_ext_ack *extack);
258
259int register_switchdev_blocking_notifier(struct notifier_block *nb);
260int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
261int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
262				      struct switchdev_notifier_info *info,
263				      struct netlink_ext_ack *extack);
264
265void switchdev_port_fwd_mark_set(struct net_device *dev,
266				 struct net_device *group_dev,
267				 bool joining);
268
269int switchdev_handle_port_obj_add(struct net_device *dev,
270			struct switchdev_notifier_port_obj_info *port_obj_info,
271			bool (*check_cb)(const struct net_device *dev),
272			int (*add_cb)(struct net_device *dev, const void *ctx,
273				      const struct switchdev_obj *obj,
 
274				      struct netlink_ext_ack *extack));
275int switchdev_handle_port_obj_del(struct net_device *dev,
276			struct switchdev_notifier_port_obj_info *port_obj_info,
277			bool (*check_cb)(const struct net_device *dev),
278			int (*del_cb)(struct net_device *dev, const void *ctx,
279				      const struct switchdev_obj *obj));
280
281int switchdev_handle_port_attr_set(struct net_device *dev,
282			struct switchdev_notifier_port_attr_info *port_attr_info,
283			bool (*check_cb)(const struct net_device *dev),
284			int (*set_cb)(struct net_device *dev, const void *ctx,
285				      const struct switchdev_attr *attr,
286				      struct netlink_ext_ack *extack));
287#else
288
289static inline void switchdev_deferred_process(void)
290{
291}
292
293static inline int switchdev_port_attr_set(struct net_device *dev,
294					  const struct switchdev_attr *attr,
295					  struct netlink_ext_ack *extack)
296{
297	return -EOPNOTSUPP;
298}
299
300static inline int switchdev_port_obj_add(struct net_device *dev,
301					 const struct switchdev_obj *obj,
302					 struct netlink_ext_ack *extack)
303{
304	return -EOPNOTSUPP;
305}
306
307static inline int switchdev_port_obj_del(struct net_device *dev,
308					 const struct switchdev_obj *obj)
309{
310	return -EOPNOTSUPP;
311}
312
313static inline int register_switchdev_notifier(struct notifier_block *nb)
314{
315	return 0;
316}
317
318static inline int unregister_switchdev_notifier(struct notifier_block *nb)
319{
320	return 0;
321}
322
323static inline int call_switchdev_notifiers(unsigned long val,
324					   struct net_device *dev,
325					   struct switchdev_notifier_info *info,
326					   struct netlink_ext_ack *extack)
327{
328	return NOTIFY_DONE;
329}
330
331static inline int
332register_switchdev_blocking_notifier(struct notifier_block *nb)
333{
334	return 0;
335}
336
337static inline int
338unregister_switchdev_blocking_notifier(struct notifier_block *nb)
339{
340	return 0;
341}
342
343static inline int
344call_switchdev_blocking_notifiers(unsigned long val,
345				  struct net_device *dev,
346				  struct switchdev_notifier_info *info,
347				  struct netlink_ext_ack *extack)
348{
349	return NOTIFY_DONE;
350}
351
352static inline int
353switchdev_handle_port_obj_add(struct net_device *dev,
354			struct switchdev_notifier_port_obj_info *port_obj_info,
355			bool (*check_cb)(const struct net_device *dev),
356			int (*add_cb)(struct net_device *dev, const void *ctx,
357				      const struct switchdev_obj *obj,
 
358				      struct netlink_ext_ack *extack))
359{
360	return 0;
361}
362
363static inline int
364switchdev_handle_port_obj_del(struct net_device *dev,
365			struct switchdev_notifier_port_obj_info *port_obj_info,
366			bool (*check_cb)(const struct net_device *dev),
367			int (*del_cb)(struct net_device *dev, const void *ctx,
368				      const struct switchdev_obj *obj))
369{
370	return 0;
371}
372
373static inline int
374switchdev_handle_port_attr_set(struct net_device *dev,
375			struct switchdev_notifier_port_attr_info *port_attr_info,
376			bool (*check_cb)(const struct net_device *dev),
377			int (*set_cb)(struct net_device *dev, const void *ctx,
378				      const struct switchdev_attr *attr,
379				      struct netlink_ext_ack *extack))
380{
381	return 0;
382}
383#endif
384
385#endif /* _LINUX_SWITCHDEV_H_ */