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007f790c JP |
1 | /* |
2 | * include/net/switchdev.h - Switch device API | |
7ea6eb3f | 3 | * Copyright (c) 2014-2015 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 | 15 | #include <linux/notifier.h> |
7ea6eb3f | 16 | #include <linux/list.h> |
850d0cbc | 17 | #include <net/ip_fib.h> |
03bf0c28 | 18 | |
3094333d | 19 | #define SWITCHDEV_F_NO_RECURSE BIT(0) |
464314ea | 20 | #define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1) |
0bc05d58 | 21 | #define SWITCHDEV_F_DEFER BIT(2) |
3094333d | 22 | |
7ea6eb3f JP |
23 | struct switchdev_trans_item { |
24 | struct list_head list; | |
25 | void *data; | |
26 | void (*destructor)(const void *data); | |
27 | }; | |
28 | ||
29 | struct switchdev_trans { | |
30 | struct list_head item_list; | |
f623ab7f | 31 | bool ph_prepare; |
7ea6eb3f JP |
32 | }; |
33 | ||
8bdb4272 JP |
34 | static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans) |
35 | { | |
f623ab7f | 36 | return trans && trans->ph_prepare; |
8bdb4272 JP |
37 | } |
38 | ||
39 | static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans) | |
40 | { | |
f623ab7f | 41 | return trans && !trans->ph_prepare; |
8bdb4272 JP |
42 | } |
43 | ||
3094333d | 44 | enum switchdev_attr_id { |
1f868398 JP |
45 | SWITCHDEV_ATTR_ID_UNDEFINED, |
46 | SWITCHDEV_ATTR_ID_PORT_PARENT_ID, | |
47 | SWITCHDEV_ATTR_ID_PORT_STP_STATE, | |
48 | SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, | |
dc0ecabd | 49 | SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT, |
6d549648 | 50 | SWITCHDEV_ATTR_ID_PORT_MROUTER, |
f55ac58a | 51 | SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, |
81435c33 | 52 | SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, |
147c1e9b | 53 | SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED, |
77041420 | 54 | SWITCHDEV_ATTR_ID_BRIDGE_MROUTER, |
3094333d SF |
55 | }; |
56 | ||
57 | struct switchdev_attr { | |
6ff64f6f | 58 | struct net_device *orig_dev; |
3094333d | 59 | enum switchdev_attr_id id; |
3094333d | 60 | u32 flags; |
7ceb2afb ER |
61 | void *complete_priv; |
62 | void (*complete)(struct net_device *dev, int err, void *priv); | |
f8e20a9f SF |
63 | union { |
64 | struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ | |
35636062 | 65 | u8 stp_state; /* PORT_STP_STATE */ |
6004c867 | 66 | unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
dc0ecabd | 67 | unsigned long brport_flags_support; /* PORT_BRIDGE_FLAGS_SUPPORT */ |
6d549648 | 68 | bool mrouter; /* PORT_MROUTER */ |
eabfdda9 | 69 | clock_t ageing_time; /* BRIDGE_AGEING_TIME */ |
81435c33 | 70 | bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ |
147c1e9b | 71 | bool mc_disabled; /* MC_DISABLED */ |
42275bd8 | 72 | } u; |
3094333d SF |
73 | }; |
74 | ||
491d0f15 | 75 | enum switchdev_obj_id { |
57d80838 JP |
76 | SWITCHDEV_OBJ_ID_UNDEFINED, |
77 | SWITCHDEV_OBJ_ID_PORT_VLAN, | |
4d41e125 | 78 | SWITCHDEV_OBJ_ID_PORT_MDB, |
47d5b6db | 79 | SWITCHDEV_OBJ_ID_HOST_MDB, |
491d0f15 SF |
80 | }; |
81 | ||
648b4a99 | 82 | struct switchdev_obj { |
6ff64f6f | 83 | struct net_device *orig_dev; |
9e8f4a54 | 84 | enum switchdev_obj_id id; |
4d429c5d | 85 | u32 flags; |
7ceb2afb ER |
86 | void *complete_priv; |
87 | void (*complete)(struct net_device *dev, int err, void *priv); | |
648b4a99 JP |
88 | }; |
89 | ||
57d80838 | 90 | /* SWITCHDEV_OBJ_ID_PORT_VLAN */ |
8f24f309 | 91 | struct switchdev_obj_port_vlan { |
648b4a99 | 92 | struct switchdev_obj obj; |
44bbcf5c VD |
93 | u16 flags; |
94 | u16 vid_begin; | |
95 | u16 vid_end; | |
96 | }; | |
97 | ||
ec394af5 PM |
98 | #define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \ |
99 | container_of((OBJ), struct switchdev_obj_port_vlan, obj) | |
648b4a99 | 100 | |
4d41e125 ER |
101 | /* SWITCHDEV_OBJ_ID_PORT_MDB */ |
102 | struct switchdev_obj_port_mdb { | |
103 | struct switchdev_obj obj; | |
104 | unsigned char addr[ETH_ALEN]; | |
105 | u16 vid; | |
106 | }; | |
107 | ||
ec394af5 PM |
108 | #define SWITCHDEV_OBJ_PORT_MDB(OBJ) \ |
109 | container_of((OBJ), struct switchdev_obj_port_mdb, obj) | |
4d41e125 | 110 | |
7ea6eb3f JP |
111 | void switchdev_trans_item_enqueue(struct switchdev_trans *trans, |
112 | void *data, void (*destructor)(void const *), | |
113 | struct switchdev_trans_item *tritem); | |
114 | void *switchdev_trans_item_dequeue(struct switchdev_trans *trans); | |
115 | ||
648b4a99 JP |
116 | typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); |
117 | ||
4170604f SF |
118 | /** |
119 | * struct switchdev_ops - switchdev operations | |
120 | * | |
3094333d SF |
121 | * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). |
122 | * | |
123 | * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). | |
4170604f | 124 | */ |
9d47c0a2 | 125 | struct switchdev_ops { |
3094333d SF |
126 | int (*switchdev_port_attr_get)(struct net_device *dev, |
127 | struct switchdev_attr *attr); | |
128 | int (*switchdev_port_attr_set)(struct net_device *dev, | |
f7fadf30 | 129 | const struct switchdev_attr *attr, |
7ea6eb3f | 130 | struct switchdev_trans *trans); |
4170604f SF |
131 | }; |
132 | ||
ebb9a03a | 133 | enum switchdev_notifier_type { |
6b26b51b AS |
134 | SWITCHDEV_FDB_ADD_TO_BRIDGE = 1, |
135 | SWITCHDEV_FDB_DEL_TO_BRIDGE, | |
136 | SWITCHDEV_FDB_ADD_TO_DEVICE, | |
137 | SWITCHDEV_FDB_DEL_TO_DEVICE, | |
9fe8bcec | 138 | SWITCHDEV_FDB_OFFLOADED, |
9a997353 | 139 | |
aa4efe21 PM |
140 | SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */ |
141 | SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */ | |
142 | ||
5728ae0d PM |
143 | SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE, |
144 | SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE, | |
9a997353 PM |
145 | SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE, |
146 | SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE, | |
0efe1173 | 147 | SWITCHDEV_VXLAN_FDB_OFFLOADED, |
3aeb6617 JP |
148 | }; |
149 | ||
ebb9a03a | 150 | struct switchdev_notifier_info { |
03bf0c28 | 151 | struct net_device *dev; |
479c86dc | 152 | struct netlink_ext_ack *extack; |
03bf0c28 JP |
153 | }; |
154 | ||
ebb9a03a JP |
155 | struct switchdev_notifier_fdb_info { |
156 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
157 | const unsigned char *addr; |
158 | u16 vid; | |
e9ba0fbc IS |
159 | u8 added_by_user:1, |
160 | offloaded:1; | |
3aeb6617 JP |
161 | }; |
162 | ||
aa4efe21 PM |
163 | struct switchdev_notifier_port_obj_info { |
164 | struct switchdev_notifier_info info; /* must be first */ | |
165 | const struct switchdev_obj *obj; | |
166 | struct switchdev_trans *trans; | |
167 | bool handled; | |
168 | }; | |
169 | ||
03bf0c28 | 170 | static inline struct net_device * |
ebb9a03a | 171 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
172 | { |
173 | return info->dev; | |
174 | } | |
007f790c | 175 | |
479c86dc PM |
176 | static inline struct netlink_ext_ack * |
177 | switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info) | |
178 | { | |
179 | return info->extack; | |
180 | } | |
181 | ||
007f790c JP |
182 | #ifdef CONFIG_NET_SWITCHDEV |
183 | ||
793f4014 | 184 | void switchdev_deferred_process(void); |
3094333d SF |
185 | int switchdev_port_attr_get(struct net_device *dev, |
186 | struct switchdev_attr *attr); | |
187 | int switchdev_port_attr_set(struct net_device *dev, | |
f7fadf30 | 188 | const struct switchdev_attr *attr); |
9e8f4a54 | 189 | int switchdev_port_obj_add(struct net_device *dev, |
69b7320e PM |
190 | const struct switchdev_obj *obj, |
191 | struct netlink_ext_ack *extack); | |
9e8f4a54 | 192 | int switchdev_port_obj_del(struct net_device *dev, |
648b4a99 | 193 | const struct switchdev_obj *obj); |
a93e3b17 | 194 | |
ebb9a03a JP |
195 | int register_switchdev_notifier(struct notifier_block *nb); |
196 | int unregister_switchdev_notifier(struct notifier_block *nb); | |
197 | int call_switchdev_notifiers(unsigned long val, struct net_device *dev, | |
198 | struct switchdev_notifier_info *info); | |
a93e3b17 PM |
199 | |
200 | int register_switchdev_blocking_notifier(struct notifier_block *nb); | |
201 | int unregister_switchdev_blocking_notifier(struct notifier_block *nb); | |
202 | int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev, | |
479c86dc PM |
203 | struct switchdev_notifier_info *info, |
204 | struct netlink_ext_ack *extack); | |
a93e3b17 | 205 | |
1a3b2ec9 SF |
206 | void switchdev_port_fwd_mark_set(struct net_device *dev, |
207 | struct net_device *group_dev, | |
208 | bool joining); | |
5e8d9049 | 209 | |
8438884d OG |
210 | bool switchdev_port_same_parent_id(struct net_device *a, |
211 | struct net_device *b); | |
d643a75a | 212 | |
f30f0601 PM |
213 | int switchdev_handle_port_obj_add(struct net_device *dev, |
214 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
215 | bool (*check_cb)(const struct net_device *dev), | |
216 | int (*add_cb)(struct net_device *dev, | |
217 | const struct switchdev_obj *obj, | |
69213513 PM |
218 | struct switchdev_trans *trans, |
219 | struct netlink_ext_ack *extack)); | |
f30f0601 PM |
220 | int switchdev_handle_port_obj_del(struct net_device *dev, |
221 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
222 | bool (*check_cb)(const struct net_device *dev), | |
223 | int (*del_cb)(struct net_device *dev, | |
224 | const struct switchdev_obj *obj)); | |
225 | ||
d643a75a | 226 | #define SWITCHDEV_SET_OPS(netdev, ops) ((netdev)->switchdev_ops = (ops)) |
007f790c JP |
227 | #else |
228 | ||
793f4014 JP |
229 | static inline void switchdev_deferred_process(void) |
230 | { | |
231 | } | |
232 | ||
3094333d SF |
233 | static inline int switchdev_port_attr_get(struct net_device *dev, |
234 | struct switchdev_attr *attr) | |
235 | { | |
236 | return -EOPNOTSUPP; | |
237 | } | |
238 | ||
239 | static inline int switchdev_port_attr_set(struct net_device *dev, | |
f7fadf30 | 240 | const struct switchdev_attr *attr) |
3094333d SF |
241 | { |
242 | return -EOPNOTSUPP; | |
243 | } | |
244 | ||
491d0f15 | 245 | static inline int switchdev_port_obj_add(struct net_device *dev, |
69b7320e PM |
246 | const struct switchdev_obj *obj, |
247 | struct netlink_ext_ack *extack) | |
491d0f15 SF |
248 | { |
249 | return -EOPNOTSUPP; | |
250 | } | |
251 | ||
252 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
648b4a99 | 253 | const struct switchdev_obj *obj) |
491d0f15 SF |
254 | { |
255 | return -EOPNOTSUPP; | |
256 | } | |
257 | ||
ebb9a03a | 258 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
259 | { |
260 | return 0; | |
261 | } | |
262 | ||
ebb9a03a | 263 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
264 | { |
265 | return 0; | |
266 | } | |
267 | ||
ebb9a03a JP |
268 | static inline int call_switchdev_notifiers(unsigned long val, |
269 | struct net_device *dev, | |
270 | struct switchdev_notifier_info *info) | |
03bf0c28 JP |
271 | { |
272 | return NOTIFY_DONE; | |
273 | } | |
274 | ||
a93e3b17 PM |
275 | static inline int |
276 | register_switchdev_blocking_notifier(struct notifier_block *nb) | |
277 | { | |
278 | return 0; | |
279 | } | |
280 | ||
281 | static inline int | |
282 | unregister_switchdev_blocking_notifier(struct notifier_block *nb) | |
283 | { | |
284 | return 0; | |
285 | } | |
286 | ||
287 | static inline int | |
288 | call_switchdev_blocking_notifiers(unsigned long val, | |
289 | struct net_device *dev, | |
479c86dc PM |
290 | struct switchdev_notifier_info *info, |
291 | struct netlink_ext_ack *extack) | |
a93e3b17 PM |
292 | { |
293 | return NOTIFY_DONE; | |
294 | } | |
295 | ||
8438884d OG |
296 | static inline bool switchdev_port_same_parent_id(struct net_device *a, |
297 | struct net_device *b) | |
298 | { | |
299 | return false; | |
300 | } | |
301 | ||
f30f0601 PM |
302 | static inline int |
303 | switchdev_handle_port_obj_add(struct net_device *dev, | |
304 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
305 | bool (*check_cb)(const struct net_device *dev), | |
306 | int (*add_cb)(struct net_device *dev, | |
307 | const struct switchdev_obj *obj, | |
69213513 PM |
308 | struct switchdev_trans *trans, |
309 | struct netlink_ext_ack *extack)) | |
f30f0601 PM |
310 | { |
311 | return 0; | |
312 | } | |
313 | ||
314 | static inline int | |
315 | switchdev_handle_port_obj_del(struct net_device *dev, | |
316 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
317 | bool (*check_cb)(const struct net_device *dev), | |
318 | int (*del_cb)(struct net_device *dev, | |
319 | const struct switchdev_obj *obj)) | |
320 | { | |
321 | return 0; | |
322 | } | |
323 | ||
d643a75a SH |
324 | #define SWITCHDEV_SET_OPS(netdev, ops) do {} while (0) |
325 | ||
007f790c JP |
326 | #endif |
327 | ||
328 | #endif /* _LINUX_SWITCHDEV_H_ */ |