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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> |
03bf0c28 | 17 | |
3094333d | 18 | #define SWITCHDEV_F_NO_RECURSE BIT(0) |
464314ea | 19 | #define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1) |
3094333d | 20 | |
7ea6eb3f JP |
21 | struct switchdev_trans_item { |
22 | struct list_head list; | |
23 | void *data; | |
24 | void (*destructor)(const void *data); | |
25 | }; | |
26 | ||
27 | struct switchdev_trans { | |
28 | struct list_head item_list; | |
f623ab7f | 29 | bool ph_prepare; |
7ea6eb3f JP |
30 | }; |
31 | ||
8bdb4272 JP |
32 | static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans) |
33 | { | |
f623ab7f | 34 | return trans && trans->ph_prepare; |
8bdb4272 JP |
35 | } |
36 | ||
37 | static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans) | |
38 | { | |
f623ab7f | 39 | return trans && !trans->ph_prepare; |
8bdb4272 JP |
40 | } |
41 | ||
3094333d | 42 | enum switchdev_attr_id { |
1f868398 JP |
43 | SWITCHDEV_ATTR_ID_UNDEFINED, |
44 | SWITCHDEV_ATTR_ID_PORT_PARENT_ID, | |
45 | SWITCHDEV_ATTR_ID_PORT_STP_STATE, | |
46 | SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, | |
f55ac58a | 47 | SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, |
3094333d SF |
48 | }; |
49 | ||
50 | struct switchdev_attr { | |
51 | enum switchdev_attr_id id; | |
3094333d | 52 | u32 flags; |
f8e20a9f SF |
53 | union { |
54 | struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ | |
35636062 | 55 | u8 stp_state; /* PORT_STP_STATE */ |
6004c867 | 56 | unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
f55ac58a | 57 | u32 ageing_time; /* BRIDGE_AGEING_TIME */ |
42275bd8 | 58 | } u; |
3094333d SF |
59 | }; |
60 | ||
4170604f SF |
61 | struct fib_info; |
62 | ||
491d0f15 | 63 | enum switchdev_obj_id { |
57d80838 JP |
64 | SWITCHDEV_OBJ_ID_UNDEFINED, |
65 | SWITCHDEV_OBJ_ID_PORT_VLAN, | |
66 | SWITCHDEV_OBJ_ID_IPV4_FIB, | |
67 | SWITCHDEV_OBJ_ID_PORT_FDB, | |
491d0f15 SF |
68 | }; |
69 | ||
648b4a99 | 70 | struct switchdev_obj { |
9e8f4a54 | 71 | enum switchdev_obj_id id; |
648b4a99 JP |
72 | }; |
73 | ||
57d80838 | 74 | /* SWITCHDEV_OBJ_ID_PORT_VLAN */ |
8f24f309 | 75 | struct switchdev_obj_port_vlan { |
648b4a99 | 76 | struct switchdev_obj obj; |
44bbcf5c VD |
77 | u16 flags; |
78 | u16 vid_begin; | |
79 | u16 vid_end; | |
80 | }; | |
81 | ||
648b4a99 JP |
82 | #define SWITCHDEV_OBJ_PORT_VLAN(obj) \ |
83 | container_of(obj, struct switchdev_obj_port_vlan, obj) | |
84 | ||
57d80838 | 85 | /* SWITCHDEV_OBJ_ID_IPV4_FIB */ |
44bbcf5c | 86 | struct switchdev_obj_ipv4_fib { |
648b4a99 | 87 | struct switchdev_obj obj; |
44bbcf5c VD |
88 | u32 dst; |
89 | int dst_len; | |
90 | struct fib_info *fi; | |
91 | u8 tos; | |
92 | u8 type; | |
93 | u32 nlflags; | |
94 | u32 tb_id; | |
95 | }; | |
96 | ||
648b4a99 JP |
97 | #define SWITCHDEV_OBJ_IPV4_FIB(obj) \ |
98 | container_of(obj, struct switchdev_obj_ipv4_fib, obj) | |
99 | ||
57d80838 | 100 | /* SWITCHDEV_OBJ_ID_PORT_FDB */ |
52ba57cf | 101 | struct switchdev_obj_port_fdb { |
648b4a99 | 102 | struct switchdev_obj obj; |
44bbcf5c VD |
103 | const unsigned char *addr; |
104 | u16 vid; | |
105 | u16 ndm_state; | |
491d0f15 SF |
106 | }; |
107 | ||
648b4a99 JP |
108 | #define SWITCHDEV_OBJ_PORT_FDB(obj) \ |
109 | container_of(obj, struct switchdev_obj_port_fdb, obj) | |
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). | |
124 | * | |
44bbcf5c | 125 | * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*). |
491d0f15 | 126 | * |
44bbcf5c | 127 | * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*). |
45d4122c | 128 | * |
44bbcf5c | 129 | * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj_*). |
4170604f | 130 | */ |
9d47c0a2 | 131 | struct switchdev_ops { |
3094333d SF |
132 | int (*switchdev_port_attr_get)(struct net_device *dev, |
133 | struct switchdev_attr *attr); | |
134 | int (*switchdev_port_attr_set)(struct net_device *dev, | |
7ea6eb3f JP |
135 | struct switchdev_attr *attr, |
136 | struct switchdev_trans *trans); | |
491d0f15 | 137 | int (*switchdev_port_obj_add)(struct net_device *dev, |
648b4a99 | 138 | const struct switchdev_obj *obj, |
7ea6eb3f | 139 | struct switchdev_trans *trans); |
491d0f15 | 140 | int (*switchdev_port_obj_del)(struct net_device *dev, |
648b4a99 | 141 | const struct switchdev_obj *obj); |
45d4122c | 142 | int (*switchdev_port_obj_dump)(struct net_device *dev, |
648b4a99 JP |
143 | struct switchdev_obj *obj, |
144 | switchdev_obj_dump_cb_t *cb); | |
4170604f SF |
145 | }; |
146 | ||
ebb9a03a JP |
147 | enum switchdev_notifier_type { |
148 | SWITCHDEV_FDB_ADD = 1, | |
149 | SWITCHDEV_FDB_DEL, | |
3aeb6617 JP |
150 | }; |
151 | ||
ebb9a03a | 152 | struct switchdev_notifier_info { |
03bf0c28 JP |
153 | struct net_device *dev; |
154 | }; | |
155 | ||
ebb9a03a JP |
156 | struct switchdev_notifier_fdb_info { |
157 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
158 | const unsigned char *addr; |
159 | u16 vid; | |
160 | }; | |
161 | ||
03bf0c28 | 162 | static inline struct net_device * |
ebb9a03a | 163 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
164 | { |
165 | return info->dev; | |
166 | } | |
007f790c JP |
167 | |
168 | #ifdef CONFIG_NET_SWITCHDEV | |
169 | ||
793f4014 | 170 | void switchdev_deferred_process(void); |
3094333d SF |
171 | int switchdev_port_attr_get(struct net_device *dev, |
172 | struct switchdev_attr *attr); | |
173 | int switchdev_port_attr_set(struct net_device *dev, | |
174 | struct switchdev_attr *attr); | |
9e8f4a54 | 175 | int switchdev_port_obj_add(struct net_device *dev, |
648b4a99 | 176 | const struct switchdev_obj *obj); |
9e8f4a54 | 177 | int switchdev_port_obj_del(struct net_device *dev, |
648b4a99 | 178 | const struct switchdev_obj *obj); |
9e8f4a54 | 179 | int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj, |
648b4a99 | 180 | switchdev_obj_dump_cb_t *cb); |
ebb9a03a JP |
181 | int register_switchdev_notifier(struct notifier_block *nb); |
182 | int unregister_switchdev_notifier(struct notifier_block *nb); | |
183 | int call_switchdev_notifiers(unsigned long val, struct net_device *dev, | |
184 | struct switchdev_notifier_info *info); | |
8793d0a6 SF |
185 | int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
186 | struct net_device *dev, u32 filter_mask, | |
187 | int nlflags); | |
ebb9a03a JP |
188 | int switchdev_port_bridge_setlink(struct net_device *dev, |
189 | struct nlmsghdr *nlh, u16 flags); | |
190 | int switchdev_port_bridge_dellink(struct net_device *dev, | |
191 | struct nlmsghdr *nlh, u16 flags); | |
ebb9a03a JP |
192 | int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, |
193 | u8 tos, u8 type, u32 nlflags, u32 tb_id); | |
194 | int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, | |
195 | u8 tos, u8 type, u32 tb_id); | |
196 | void switchdev_fib_ipv4_abort(struct fib_info *fi); | |
45d4122c SS |
197 | int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
198 | struct net_device *dev, const unsigned char *addr, | |
199 | u16 vid, u16 nlm_flags); | |
200 | int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
201 | struct net_device *dev, const unsigned char *addr, | |
202 | u16 vid); | |
203 | int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
204 | struct net_device *dev, | |
205 | struct net_device *filter_dev, int idx); | |
1a3b2ec9 SF |
206 | void switchdev_port_fwd_mark_set(struct net_device *dev, |
207 | struct net_device *group_dev, | |
208 | bool joining); | |
5e8d9049 | 209 | |
007f790c JP |
210 | #else |
211 | ||
793f4014 JP |
212 | static inline void switchdev_deferred_process(void) |
213 | { | |
214 | } | |
215 | ||
3094333d SF |
216 | static inline int switchdev_port_attr_get(struct net_device *dev, |
217 | struct switchdev_attr *attr) | |
218 | { | |
219 | return -EOPNOTSUPP; | |
220 | } | |
221 | ||
222 | static inline int switchdev_port_attr_set(struct net_device *dev, | |
223 | struct switchdev_attr *attr) | |
224 | { | |
225 | return -EOPNOTSUPP; | |
226 | } | |
227 | ||
491d0f15 | 228 | static inline int switchdev_port_obj_add(struct net_device *dev, |
648b4a99 | 229 | const struct switchdev_obj *obj) |
491d0f15 SF |
230 | { |
231 | return -EOPNOTSUPP; | |
232 | } | |
233 | ||
234 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
648b4a99 | 235 | const struct switchdev_obj *obj) |
491d0f15 SF |
236 | { |
237 | return -EOPNOTSUPP; | |
238 | } | |
239 | ||
45d4122c | 240 | static inline int switchdev_port_obj_dump(struct net_device *dev, |
648b4a99 JP |
241 | const struct switchdev_obj *obj, |
242 | switchdev_obj_dump_cb_t *cb) | |
45d4122c SS |
243 | { |
244 | return -EOPNOTSUPP; | |
245 | } | |
246 | ||
ebb9a03a | 247 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
248 | { |
249 | return 0; | |
250 | } | |
251 | ||
ebb9a03a | 252 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
253 | { |
254 | return 0; | |
255 | } | |
256 | ||
ebb9a03a JP |
257 | static inline int call_switchdev_notifiers(unsigned long val, |
258 | struct net_device *dev, | |
259 | struct switchdev_notifier_info *info) | |
03bf0c28 JP |
260 | { |
261 | return NOTIFY_DONE; | |
262 | } | |
263 | ||
8793d0a6 SF |
264 | static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, |
265 | u32 seq, struct net_device *dev, | |
266 | u32 filter_mask, int nlflags) | |
267 | { | |
268 | return -EOPNOTSUPP; | |
269 | } | |
270 | ||
ebb9a03a JP |
271 | static inline int switchdev_port_bridge_setlink(struct net_device *dev, |
272 | struct nlmsghdr *nlh, | |
273 | u16 flags) | |
8a44dbb2 RP |
274 | { |
275 | return -EOPNOTSUPP; | |
276 | } | |
277 | ||
ebb9a03a JP |
278 | static inline int switchdev_port_bridge_dellink(struct net_device *dev, |
279 | struct nlmsghdr *nlh, | |
280 | u16 flags) | |
8a44dbb2 RP |
281 | { |
282 | return -EOPNOTSUPP; | |
283 | } | |
284 | ||
ebb9a03a JP |
285 | static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len, |
286 | struct fib_info *fi, | |
287 | u8 tos, u8 type, | |
288 | u32 nlflags, u32 tb_id) | |
5e8d9049 SF |
289 | { |
290 | return 0; | |
291 | } | |
292 | ||
ebb9a03a JP |
293 | static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len, |
294 | struct fib_info *fi, | |
295 | u8 tos, u8 type, u32 tb_id) | |
5e8d9049 SF |
296 | { |
297 | return 0; | |
298 | } | |
299 | ||
ebb9a03a | 300 | static inline void switchdev_fib_ipv4_abort(struct fib_info *fi) |
8e05fd71 SF |
301 | { |
302 | } | |
303 | ||
45d4122c SS |
304 | static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
305 | struct net_device *dev, | |
306 | const unsigned char *addr, | |
307 | u16 vid, u16 nlm_flags) | |
308 | { | |
309 | return -EOPNOTSUPP; | |
310 | } | |
311 | ||
312 | static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
313 | struct net_device *dev, | |
314 | const unsigned char *addr, u16 vid) | |
315 | { | |
316 | return -EOPNOTSUPP; | |
317 | } | |
318 | ||
319 | static inline int switchdev_port_fdb_dump(struct sk_buff *skb, | |
320 | struct netlink_callback *cb, | |
321 | struct net_device *dev, | |
322 | struct net_device *filter_dev, | |
323 | int idx) | |
324 | { | |
325 | return -EOPNOTSUPP; | |
326 | } | |
327 | ||
1a3b2ec9 SF |
328 | static inline void switchdev_port_fwd_mark_set(struct net_device *dev, |
329 | struct net_device *group_dev, | |
330 | bool joining) | |
331 | { | |
332 | } | |
333 | ||
007f790c JP |
334 | #endif |
335 | ||
336 | #endif /* _LINUX_SWITCHDEV_H_ */ |