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 typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
205 
206 struct switchdev_brport {
207 	struct net_device *dev;
208 	const void *ctx;
209 	struct notifier_block *atomic_nb;
210 	struct notifier_block *blocking_nb;
211 	bool tx_fwd_offload;
212 };
213 
214 enum switchdev_notifier_type {
215 	SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
216 	SWITCHDEV_FDB_DEL_TO_BRIDGE,
217 	SWITCHDEV_FDB_ADD_TO_DEVICE,
218 	SWITCHDEV_FDB_DEL_TO_DEVICE,
219 	SWITCHDEV_FDB_OFFLOADED,
220 	SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
221 
222 	SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
223 	SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
224 	SWITCHDEV_PORT_ATTR_SET, /* May be blocking . */
225 
226 	SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
227 	SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
228 	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
229 	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
230 	SWITCHDEV_VXLAN_FDB_OFFLOADED,
231 
232 	SWITCHDEV_BRPORT_OFFLOADED,
233 	SWITCHDEV_BRPORT_UNOFFLOADED,
234 };
235 
236 struct switchdev_notifier_info {
237 	struct net_device *dev;
238 	struct netlink_ext_ack *extack;
239 	const void *ctx;
240 };
241 
242 struct switchdev_notifier_fdb_info {
243 	struct switchdev_notifier_info info; /* must be first */
244 	const unsigned char *addr;
245 	u16 vid;
246 	u8 added_by_user:1,
247 	   is_local:1,
248 	   offloaded:1;
249 };
250 
251 struct switchdev_notifier_port_obj_info {
252 	struct switchdev_notifier_info info; /* must be first */
253 	const struct switchdev_obj *obj;
254 	bool handled;
255 };
256 
257 struct switchdev_notifier_port_attr_info {
258 	struct switchdev_notifier_info info; /* must be first */
259 	const struct switchdev_attr *attr;
260 	bool handled;
261 };
262 
263 struct switchdev_notifier_brport_info {
264 	struct switchdev_notifier_info info; /* must be first */
265 	const struct switchdev_brport brport;
266 };
267 
268 static inline struct net_device *
switchdev_notifier_info_to_dev(const struct switchdev_notifier_info * info)269 switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
270 {
271 	return info->dev;
272 }
273 
274 static inline struct netlink_ext_ack *
switchdev_notifier_info_to_extack(const struct switchdev_notifier_info * info)275 switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
276 {
277 	return info->extack;
278 }
279 
280 static inline bool
switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info * fdb_info)281 switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info *fdb_info)
282 {
283 	return !fdb_info->added_by_user && !fdb_info->is_local;
284 }
285 
286 #ifdef CONFIG_NET_SWITCHDEV
287 
288 int switchdev_bridge_port_offload(struct net_device *brport_dev,
289 				  struct net_device *dev, const void *ctx,
290 				  struct notifier_block *atomic_nb,
291 				  struct notifier_block *blocking_nb,
292 				  bool tx_fwd_offload,
293 				  struct netlink_ext_ack *extack);
294 void switchdev_bridge_port_unoffload(struct net_device *brport_dev,
295 				     const void *ctx,
296 				     struct notifier_block *atomic_nb,
297 				     struct notifier_block *blocking_nb);
298 
299 void switchdev_deferred_process(void);
300 int switchdev_port_attr_set(struct net_device *dev,
301 			    const struct switchdev_attr *attr,
302 			    struct netlink_ext_ack *extack);
303 int switchdev_port_obj_add(struct net_device *dev,
304 			   const struct switchdev_obj *obj,
305 			   struct netlink_ext_ack *extack);
306 int switchdev_port_obj_del(struct net_device *dev,
307 			   const struct switchdev_obj *obj);
308 
309 int register_switchdev_notifier(struct notifier_block *nb);
310 int unregister_switchdev_notifier(struct notifier_block *nb);
311 int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
312 			     struct switchdev_notifier_info *info,
313 			     struct netlink_ext_ack *extack);
314 
315 int register_switchdev_blocking_notifier(struct notifier_block *nb);
316 int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
317 int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
318 				      struct switchdev_notifier_info *info,
319 				      struct netlink_ext_ack *extack);
320 
321 void switchdev_port_fwd_mark_set(struct net_device *dev,
322 				 struct net_device *group_dev,
323 				 bool joining);
324 
325 int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
326 		const struct switchdev_notifier_fdb_info *fdb_info,
327 		bool (*check_cb)(const struct net_device *dev),
328 		bool (*foreign_dev_check_cb)(const struct net_device *dev,
329 					     const struct net_device *foreign_dev),
330 		int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
331 			      unsigned long event, const void *ctx,
332 			      const struct switchdev_notifier_fdb_info *fdb_info));
333 
334 int switchdev_handle_port_obj_add(struct net_device *dev,
335 			struct switchdev_notifier_port_obj_info *port_obj_info,
336 			bool (*check_cb)(const struct net_device *dev),
337 			int (*add_cb)(struct net_device *dev, const void *ctx,
338 				      const struct switchdev_obj *obj,
339 				      struct netlink_ext_ack *extack));
340 int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
341 			struct switchdev_notifier_port_obj_info *port_obj_info,
342 			bool (*check_cb)(const struct net_device *dev),
343 			bool (*foreign_dev_check_cb)(const struct net_device *dev,
344 						     const struct net_device *foreign_dev),
345 			int (*add_cb)(struct net_device *dev, const void *ctx,
346 				      const struct switchdev_obj *obj,
347 				      struct netlink_ext_ack *extack));
348 int switchdev_handle_port_obj_del(struct net_device *dev,
349 			struct switchdev_notifier_port_obj_info *port_obj_info,
350 			bool (*check_cb)(const struct net_device *dev),
351 			int (*del_cb)(struct net_device *dev, const void *ctx,
352 				      const struct switchdev_obj *obj));
353 int switchdev_handle_port_obj_del_foreign(struct net_device *dev,
354 			struct switchdev_notifier_port_obj_info *port_obj_info,
355 			bool (*check_cb)(const struct net_device *dev),
356 			bool (*foreign_dev_check_cb)(const struct net_device *dev,
357 						     const struct net_device *foreign_dev),
358 			int (*del_cb)(struct net_device *dev, const void *ctx,
359 				      const struct switchdev_obj *obj));
360 
361 int switchdev_handle_port_attr_set(struct net_device *dev,
362 			struct switchdev_notifier_port_attr_info *port_attr_info,
363 			bool (*check_cb)(const struct net_device *dev),
364 			int (*set_cb)(struct net_device *dev, const void *ctx,
365 				      const struct switchdev_attr *attr,
366 				      struct netlink_ext_ack *extack));
367 #else
368 
369 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)370 switchdev_bridge_port_offload(struct net_device *brport_dev,
371 			      struct net_device *dev, const void *ctx,
372 			      struct notifier_block *atomic_nb,
373 			      struct notifier_block *blocking_nb,
374 			      bool tx_fwd_offload,
375 			      struct netlink_ext_ack *extack)
376 {
377 	return -EOPNOTSUPP;
378 }
379 
380 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)381 switchdev_bridge_port_unoffload(struct net_device *brport_dev,
382 				const void *ctx,
383 				struct notifier_block *atomic_nb,
384 				struct notifier_block *blocking_nb)
385 {
386 }
387 
switchdev_deferred_process(void)388 static inline void switchdev_deferred_process(void)
389 {
390 }
391 
switchdev_port_attr_set(struct net_device * dev,const struct switchdev_attr * attr,struct netlink_ext_ack * extack)392 static inline int switchdev_port_attr_set(struct net_device *dev,
393 					  const struct switchdev_attr *attr,
394 					  struct netlink_ext_ack *extack)
395 {
396 	return -EOPNOTSUPP;
397 }
398 
switchdev_port_obj_add(struct net_device * dev,const struct switchdev_obj * obj,struct netlink_ext_ack * extack)399 static inline int switchdev_port_obj_add(struct net_device *dev,
400 					 const struct switchdev_obj *obj,
401 					 struct netlink_ext_ack *extack)
402 {
403 	return -EOPNOTSUPP;
404 }
405 
switchdev_port_obj_del(struct net_device * dev,const struct switchdev_obj * obj)406 static inline int switchdev_port_obj_del(struct net_device *dev,
407 					 const struct switchdev_obj *obj)
408 {
409 	return -EOPNOTSUPP;
410 }
411 
register_switchdev_notifier(struct notifier_block * nb)412 static inline int register_switchdev_notifier(struct notifier_block *nb)
413 {
414 	return 0;
415 }
416 
unregister_switchdev_notifier(struct notifier_block * nb)417 static inline int unregister_switchdev_notifier(struct notifier_block *nb)
418 {
419 	return 0;
420 }
421 
call_switchdev_notifiers(unsigned long val,struct net_device * dev,struct switchdev_notifier_info * info,struct netlink_ext_ack * extack)422 static inline int call_switchdev_notifiers(unsigned long val,
423 					   struct net_device *dev,
424 					   struct switchdev_notifier_info *info,
425 					   struct netlink_ext_ack *extack)
426 {
427 	return NOTIFY_DONE;
428 }
429 
430 static inline int
register_switchdev_blocking_notifier(struct notifier_block * nb)431 register_switchdev_blocking_notifier(struct notifier_block *nb)
432 {
433 	return 0;
434 }
435 
436 static inline int
unregister_switchdev_blocking_notifier(struct notifier_block * nb)437 unregister_switchdev_blocking_notifier(struct notifier_block *nb)
438 {
439 	return 0;
440 }
441 
442 static inline int
call_switchdev_blocking_notifiers(unsigned long val,struct net_device * dev,struct switchdev_notifier_info * info,struct netlink_ext_ack * extack)443 call_switchdev_blocking_notifiers(unsigned long val,
444 				  struct net_device *dev,
445 				  struct switchdev_notifier_info *info,
446 				  struct netlink_ext_ack *extack)
447 {
448 	return NOTIFY_DONE;
449 }
450 
451 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))452 switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
453 		const struct switchdev_notifier_fdb_info *fdb_info,
454 		bool (*check_cb)(const struct net_device *dev),
455 		bool (*foreign_dev_check_cb)(const struct net_device *dev,
456 					     const struct net_device *foreign_dev),
457 		int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
458 			      unsigned long event, const void *ctx,
459 			      const struct switchdev_notifier_fdb_info *fdb_info))
460 {
461 	return 0;
462 }
463 
464 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))465 switchdev_handle_port_obj_add(struct net_device *dev,
466 			struct switchdev_notifier_port_obj_info *port_obj_info,
467 			bool (*check_cb)(const struct net_device *dev),
468 			int (*add_cb)(struct net_device *dev, const void *ctx,
469 				      const struct switchdev_obj *obj,
470 				      struct netlink_ext_ack *extack))
471 {
472 	return 0;
473 }
474 
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))475 static inline int switchdev_handle_port_obj_add_foreign(struct net_device *dev,
476 			struct switchdev_notifier_port_obj_info *port_obj_info,
477 			bool (*check_cb)(const struct net_device *dev),
478 			bool (*foreign_dev_check_cb)(const struct net_device *dev,
479 						     const struct net_device *foreign_dev),
480 			int (*add_cb)(struct net_device *dev, const void *ctx,
481 				      const struct switchdev_obj *obj,
482 				      struct netlink_ext_ack *extack))
483 {
484 	return 0;
485 }
486 
487 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))488 switchdev_handle_port_obj_del(struct net_device *dev,
489 			struct switchdev_notifier_port_obj_info *port_obj_info,
490 			bool (*check_cb)(const struct net_device *dev),
491 			int (*del_cb)(struct net_device *dev, const void *ctx,
492 				      const struct switchdev_obj *obj))
493 {
494 	return 0;
495 }
496 
497 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))498 switchdev_handle_port_obj_del_foreign(struct net_device *dev,
499 			struct switchdev_notifier_port_obj_info *port_obj_info,
500 			bool (*check_cb)(const struct net_device *dev),
501 			bool (*foreign_dev_check_cb)(const struct net_device *dev,
502 						     const struct net_device *foreign_dev),
503 			int (*del_cb)(struct net_device *dev, const void *ctx,
504 				      const struct switchdev_obj *obj))
505 {
506 	return 0;
507 }
508 
509 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))510 switchdev_handle_port_attr_set(struct net_device *dev,
511 			struct switchdev_notifier_port_attr_info *port_attr_info,
512 			bool (*check_cb)(const struct net_device *dev),
513 			int (*set_cb)(struct net_device *dev, const void *ctx,
514 				      const struct switchdev_attr *attr,
515 				      struct netlink_ext_ack *extack))
516 {
517 	return 0;
518 }
519 #endif
520 
521 #endif /* _LINUX_SWITCHDEV_H_ */
522