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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, | |
f55ac58a | 49 | SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, |
81435c33 | 50 | SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, |
3094333d SF |
51 | }; |
52 | ||
53 | struct switchdev_attr { | |
6ff64f6f | 54 | struct net_device *orig_dev; |
3094333d | 55 | enum switchdev_attr_id id; |
3094333d | 56 | u32 flags; |
f8e20a9f SF |
57 | union { |
58 | struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ | |
35636062 | 59 | u8 stp_state; /* PORT_STP_STATE */ |
6004c867 | 60 | unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
f55ac58a | 61 | u32 ageing_time; /* BRIDGE_AGEING_TIME */ |
81435c33 | 62 | bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ |
42275bd8 | 63 | } u; |
3094333d SF |
64 | }; |
65 | ||
491d0f15 | 66 | enum switchdev_obj_id { |
57d80838 JP |
67 | SWITCHDEV_OBJ_ID_UNDEFINED, |
68 | SWITCHDEV_OBJ_ID_PORT_VLAN, | |
69 | SWITCHDEV_OBJ_ID_IPV4_FIB, | |
70 | SWITCHDEV_OBJ_ID_PORT_FDB, | |
491d0f15 SF |
71 | }; |
72 | ||
648b4a99 | 73 | struct switchdev_obj { |
6ff64f6f | 74 | struct net_device *orig_dev; |
9e8f4a54 | 75 | enum switchdev_obj_id id; |
4d429c5d | 76 | u32 flags; |
648b4a99 JP |
77 | }; |
78 | ||
57d80838 | 79 | /* SWITCHDEV_OBJ_ID_PORT_VLAN */ |
8f24f309 | 80 | struct switchdev_obj_port_vlan { |
648b4a99 | 81 | struct switchdev_obj obj; |
44bbcf5c VD |
82 | u16 flags; |
83 | u16 vid_begin; | |
84 | u16 vid_end; | |
85 | }; | |
86 | ||
648b4a99 JP |
87 | #define SWITCHDEV_OBJ_PORT_VLAN(obj) \ |
88 | container_of(obj, struct switchdev_obj_port_vlan, obj) | |
89 | ||
57d80838 | 90 | /* SWITCHDEV_OBJ_ID_IPV4_FIB */ |
44bbcf5c | 91 | struct switchdev_obj_ipv4_fib { |
648b4a99 | 92 | struct switchdev_obj obj; |
44bbcf5c VD |
93 | u32 dst; |
94 | int dst_len; | |
850d0cbc | 95 | struct fib_info fi; |
44bbcf5c VD |
96 | u8 tos; |
97 | u8 type; | |
98 | u32 nlflags; | |
99 | u32 tb_id; | |
100 | }; | |
101 | ||
648b4a99 JP |
102 | #define SWITCHDEV_OBJ_IPV4_FIB(obj) \ |
103 | container_of(obj, struct switchdev_obj_ipv4_fib, obj) | |
104 | ||
57d80838 | 105 | /* SWITCHDEV_OBJ_ID_PORT_FDB */ |
52ba57cf | 106 | struct switchdev_obj_port_fdb { |
648b4a99 | 107 | struct switchdev_obj obj; |
850d0cbc | 108 | unsigned char addr[ETH_ALEN]; |
44bbcf5c VD |
109 | u16 vid; |
110 | u16 ndm_state; | |
491d0f15 SF |
111 | }; |
112 | ||
648b4a99 JP |
113 | #define SWITCHDEV_OBJ_PORT_FDB(obj) \ |
114 | container_of(obj, struct switchdev_obj_port_fdb, obj) | |
115 | ||
7ea6eb3f JP |
116 | void switchdev_trans_item_enqueue(struct switchdev_trans *trans, |
117 | void *data, void (*destructor)(void const *), | |
118 | struct switchdev_trans_item *tritem); | |
119 | void *switchdev_trans_item_dequeue(struct switchdev_trans *trans); | |
120 | ||
648b4a99 JP |
121 | typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); |
122 | ||
4170604f SF |
123 | /** |
124 | * struct switchdev_ops - switchdev operations | |
125 | * | |
3094333d SF |
126 | * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). |
127 | * | |
128 | * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). | |
129 | * | |
44bbcf5c | 130 | * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*). |
491d0f15 | 131 | * |
44bbcf5c | 132 | * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*). |
45d4122c | 133 | * |
44bbcf5c | 134 | * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj_*). |
4170604f | 135 | */ |
9d47c0a2 | 136 | struct switchdev_ops { |
3094333d SF |
137 | int (*switchdev_port_attr_get)(struct net_device *dev, |
138 | struct switchdev_attr *attr); | |
139 | int (*switchdev_port_attr_set)(struct net_device *dev, | |
f7fadf30 | 140 | const struct switchdev_attr *attr, |
7ea6eb3f | 141 | struct switchdev_trans *trans); |
491d0f15 | 142 | int (*switchdev_port_obj_add)(struct net_device *dev, |
648b4a99 | 143 | const struct switchdev_obj *obj, |
7ea6eb3f | 144 | struct switchdev_trans *trans); |
491d0f15 | 145 | int (*switchdev_port_obj_del)(struct net_device *dev, |
648b4a99 | 146 | const struct switchdev_obj *obj); |
45d4122c | 147 | int (*switchdev_port_obj_dump)(struct net_device *dev, |
648b4a99 JP |
148 | struct switchdev_obj *obj, |
149 | switchdev_obj_dump_cb_t *cb); | |
4170604f SF |
150 | }; |
151 | ||
ebb9a03a JP |
152 | enum switchdev_notifier_type { |
153 | SWITCHDEV_FDB_ADD = 1, | |
154 | SWITCHDEV_FDB_DEL, | |
3aeb6617 JP |
155 | }; |
156 | ||
ebb9a03a | 157 | struct switchdev_notifier_info { |
03bf0c28 JP |
158 | struct net_device *dev; |
159 | }; | |
160 | ||
ebb9a03a JP |
161 | struct switchdev_notifier_fdb_info { |
162 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
163 | const unsigned char *addr; |
164 | u16 vid; | |
165 | }; | |
166 | ||
03bf0c28 | 167 | static inline struct net_device * |
ebb9a03a | 168 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
169 | { |
170 | return info->dev; | |
171 | } | |
007f790c JP |
172 | |
173 | #ifdef CONFIG_NET_SWITCHDEV | |
174 | ||
793f4014 | 175 | void switchdev_deferred_process(void); |
3094333d SF |
176 | int switchdev_port_attr_get(struct net_device *dev, |
177 | struct switchdev_attr *attr); | |
178 | int switchdev_port_attr_set(struct net_device *dev, | |
f7fadf30 | 179 | const struct switchdev_attr *attr); |
9e8f4a54 | 180 | int switchdev_port_obj_add(struct net_device *dev, |
648b4a99 | 181 | const struct switchdev_obj *obj); |
9e8f4a54 | 182 | int switchdev_port_obj_del(struct net_device *dev, |
648b4a99 | 183 | const struct switchdev_obj *obj); |
9e8f4a54 | 184 | int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj, |
648b4a99 | 185 | switchdev_obj_dump_cb_t *cb); |
ebb9a03a JP |
186 | int register_switchdev_notifier(struct notifier_block *nb); |
187 | int unregister_switchdev_notifier(struct notifier_block *nb); | |
188 | int call_switchdev_notifiers(unsigned long val, struct net_device *dev, | |
189 | struct switchdev_notifier_info *info); | |
8793d0a6 SF |
190 | int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
191 | struct net_device *dev, u32 filter_mask, | |
192 | int nlflags); | |
ebb9a03a JP |
193 | int switchdev_port_bridge_setlink(struct net_device *dev, |
194 | struct nlmsghdr *nlh, u16 flags); | |
195 | int switchdev_port_bridge_dellink(struct net_device *dev, | |
196 | struct nlmsghdr *nlh, u16 flags); | |
ebb9a03a JP |
197 | int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, |
198 | u8 tos, u8 type, u32 nlflags, u32 tb_id); | |
199 | int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, | |
200 | u8 tos, u8 type, u32 tb_id); | |
201 | void switchdev_fib_ipv4_abort(struct fib_info *fi); | |
45d4122c SS |
202 | int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
203 | struct net_device *dev, const unsigned char *addr, | |
204 | u16 vid, u16 nlm_flags); | |
205 | int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
206 | struct net_device *dev, const unsigned char *addr, | |
207 | u16 vid); | |
208 | int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
209 | struct net_device *dev, | |
210 | struct net_device *filter_dev, int idx); | |
1a3b2ec9 SF |
211 | void switchdev_port_fwd_mark_set(struct net_device *dev, |
212 | struct net_device *group_dev, | |
213 | bool joining); | |
5e8d9049 | 214 | |
007f790c JP |
215 | #else |
216 | ||
793f4014 JP |
217 | static inline void switchdev_deferred_process(void) |
218 | { | |
219 | } | |
220 | ||
3094333d SF |
221 | static inline int switchdev_port_attr_get(struct net_device *dev, |
222 | struct switchdev_attr *attr) | |
223 | { | |
224 | return -EOPNOTSUPP; | |
225 | } | |
226 | ||
227 | static inline int switchdev_port_attr_set(struct net_device *dev, | |
f7fadf30 | 228 | const struct switchdev_attr *attr) |
3094333d SF |
229 | { |
230 | return -EOPNOTSUPP; | |
231 | } | |
232 | ||
491d0f15 | 233 | static inline int switchdev_port_obj_add(struct net_device *dev, |
648b4a99 | 234 | const struct switchdev_obj *obj) |
491d0f15 SF |
235 | { |
236 | return -EOPNOTSUPP; | |
237 | } | |
238 | ||
239 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
648b4a99 | 240 | const struct switchdev_obj *obj) |
491d0f15 SF |
241 | { |
242 | return -EOPNOTSUPP; | |
243 | } | |
244 | ||
45d4122c | 245 | static inline int switchdev_port_obj_dump(struct net_device *dev, |
648b4a99 JP |
246 | const struct switchdev_obj *obj, |
247 | switchdev_obj_dump_cb_t *cb) | |
45d4122c SS |
248 | { |
249 | return -EOPNOTSUPP; | |
250 | } | |
251 | ||
ebb9a03a | 252 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
253 | { |
254 | return 0; | |
255 | } | |
256 | ||
ebb9a03a | 257 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
258 | { |
259 | return 0; | |
260 | } | |
261 | ||
ebb9a03a JP |
262 | static inline int call_switchdev_notifiers(unsigned long val, |
263 | struct net_device *dev, | |
264 | struct switchdev_notifier_info *info) | |
03bf0c28 JP |
265 | { |
266 | return NOTIFY_DONE; | |
267 | } | |
268 | ||
8793d0a6 SF |
269 | static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, |
270 | u32 seq, struct net_device *dev, | |
271 | u32 filter_mask, int nlflags) | |
272 | { | |
273 | return -EOPNOTSUPP; | |
274 | } | |
275 | ||
ebb9a03a JP |
276 | static inline int switchdev_port_bridge_setlink(struct net_device *dev, |
277 | struct nlmsghdr *nlh, | |
278 | u16 flags) | |
8a44dbb2 RP |
279 | { |
280 | return -EOPNOTSUPP; | |
281 | } | |
282 | ||
ebb9a03a JP |
283 | static inline int switchdev_port_bridge_dellink(struct net_device *dev, |
284 | struct nlmsghdr *nlh, | |
285 | u16 flags) | |
8a44dbb2 RP |
286 | { |
287 | return -EOPNOTSUPP; | |
288 | } | |
289 | ||
ebb9a03a JP |
290 | static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len, |
291 | struct fib_info *fi, | |
292 | u8 tos, u8 type, | |
293 | u32 nlflags, u32 tb_id) | |
5e8d9049 SF |
294 | { |
295 | return 0; | |
296 | } | |
297 | ||
ebb9a03a JP |
298 | static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len, |
299 | struct fib_info *fi, | |
300 | u8 tos, u8 type, u32 tb_id) | |
5e8d9049 SF |
301 | { |
302 | return 0; | |
303 | } | |
304 | ||
ebb9a03a | 305 | static inline void switchdev_fib_ipv4_abort(struct fib_info *fi) |
8e05fd71 SF |
306 | { |
307 | } | |
308 | ||
45d4122c SS |
309 | static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
310 | struct net_device *dev, | |
311 | const unsigned char *addr, | |
312 | u16 vid, u16 nlm_flags) | |
313 | { | |
314 | return -EOPNOTSUPP; | |
315 | } | |
316 | ||
317 | static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
318 | struct net_device *dev, | |
319 | const unsigned char *addr, u16 vid) | |
320 | { | |
321 | return -EOPNOTSUPP; | |
322 | } | |
323 | ||
324 | static inline int switchdev_port_fdb_dump(struct sk_buff *skb, | |
325 | struct netlink_callback *cb, | |
326 | struct net_device *dev, | |
327 | struct net_device *filter_dev, | |
328 | int idx) | |
329 | { | |
24cb7055 | 330 | return idx; |
45d4122c SS |
331 | } |
332 | ||
1a3b2ec9 SF |
333 | static inline void switchdev_port_fwd_mark_set(struct net_device *dev, |
334 | struct net_device *group_dev, | |
335 | bool joining) | |
336 | { | |
337 | } | |
338 | ||
007f790c JP |
339 | #endif |
340 | ||
341 | #endif /* _LINUX_SWITCHDEV_H_ */ |