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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 | 45 | SWITCHDEV_ATTR_ID_UNDEFINED, |
1f868398 JP |
46 | SWITCHDEV_ATTR_ID_PORT_STP_STATE, |
47 | SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS, | |
746dc184 | 48 | SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS, |
6d549648 | 49 | SWITCHDEV_ATTR_ID_PORT_MROUTER, |
f55ac58a | 50 | SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, |
81435c33 | 51 | SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, |
147c1e9b | 52 | SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED, |
77041420 | 53 | SWITCHDEV_ATTR_ID_BRIDGE_MROUTER, |
3094333d SF |
54 | }; |
55 | ||
56 | struct switchdev_attr { | |
6ff64f6f | 57 | struct net_device *orig_dev; |
3094333d | 58 | enum switchdev_attr_id id; |
3094333d | 59 | u32 flags; |
7ceb2afb ER |
60 | void *complete_priv; |
61 | void (*complete)(struct net_device *dev, int err, void *priv); | |
f8e20a9f | 62 | union { |
35636062 | 63 | u8 stp_state; /* PORT_STP_STATE */ |
746dc184 | 64 | unsigned long brport_flags; /* PORT_{PRE}_BRIDGE_FLAGS */ |
6d549648 | 65 | bool mrouter; /* PORT_MROUTER */ |
eabfdda9 | 66 | clock_t ageing_time; /* BRIDGE_AGEING_TIME */ |
81435c33 | 67 | bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ |
147c1e9b | 68 | bool mc_disabled; /* MC_DISABLED */ |
42275bd8 | 69 | } u; |
3094333d SF |
70 | }; |
71 | ||
491d0f15 | 72 | enum switchdev_obj_id { |
57d80838 JP |
73 | SWITCHDEV_OBJ_ID_UNDEFINED, |
74 | SWITCHDEV_OBJ_ID_PORT_VLAN, | |
4d41e125 | 75 | SWITCHDEV_OBJ_ID_PORT_MDB, |
47d5b6db | 76 | SWITCHDEV_OBJ_ID_HOST_MDB, |
491d0f15 SF |
77 | }; |
78 | ||
648b4a99 | 79 | struct switchdev_obj { |
6ff64f6f | 80 | struct net_device *orig_dev; |
9e8f4a54 | 81 | enum switchdev_obj_id id; |
4d429c5d | 82 | u32 flags; |
7ceb2afb ER |
83 | void *complete_priv; |
84 | void (*complete)(struct net_device *dev, int err, void *priv); | |
648b4a99 JP |
85 | }; |
86 | ||
57d80838 | 87 | /* SWITCHDEV_OBJ_ID_PORT_VLAN */ |
8f24f309 | 88 | struct switchdev_obj_port_vlan { |
648b4a99 | 89 | struct switchdev_obj obj; |
44bbcf5c VD |
90 | u16 flags; |
91 | u16 vid_begin; | |
92 | u16 vid_end; | |
93 | }; | |
94 | ||
ec394af5 PM |
95 | #define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \ |
96 | container_of((OBJ), struct switchdev_obj_port_vlan, obj) | |
648b4a99 | 97 | |
4d41e125 ER |
98 | /* SWITCHDEV_OBJ_ID_PORT_MDB */ |
99 | struct switchdev_obj_port_mdb { | |
100 | struct switchdev_obj obj; | |
101 | unsigned char addr[ETH_ALEN]; | |
102 | u16 vid; | |
103 | }; | |
104 | ||
ec394af5 PM |
105 | #define SWITCHDEV_OBJ_PORT_MDB(OBJ) \ |
106 | container_of((OBJ), struct switchdev_obj_port_mdb, obj) | |
4d41e125 | 107 | |
7ea6eb3f JP |
108 | void switchdev_trans_item_enqueue(struct switchdev_trans *trans, |
109 | void *data, void (*destructor)(void const *), | |
110 | struct switchdev_trans_item *tritem); | |
111 | void *switchdev_trans_item_dequeue(struct switchdev_trans *trans); | |
112 | ||
648b4a99 JP |
113 | typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); |
114 | ||
4170604f SF |
115 | /** |
116 | * struct switchdev_ops - switchdev operations | |
117 | * | |
3094333d | 118 | * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). |
4170604f | 119 | */ |
9d47c0a2 | 120 | struct switchdev_ops { |
3094333d | 121 | int (*switchdev_port_attr_set)(struct net_device *dev, |
f7fadf30 | 122 | const struct switchdev_attr *attr, |
7ea6eb3f | 123 | struct switchdev_trans *trans); |
4170604f SF |
124 | }; |
125 | ||
ebb9a03a | 126 | enum switchdev_notifier_type { |
6b26b51b AS |
127 | SWITCHDEV_FDB_ADD_TO_BRIDGE = 1, |
128 | SWITCHDEV_FDB_DEL_TO_BRIDGE, | |
129 | SWITCHDEV_FDB_ADD_TO_DEVICE, | |
130 | SWITCHDEV_FDB_DEL_TO_DEVICE, | |
9fe8bcec | 131 | SWITCHDEV_FDB_OFFLOADED, |
9a997353 | 132 | |
aa4efe21 PM |
133 | SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */ |
134 | SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */ | |
135 | ||
5728ae0d PM |
136 | SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE, |
137 | SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE, | |
9a997353 PM |
138 | SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE, |
139 | SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE, | |
0efe1173 | 140 | SWITCHDEV_VXLAN_FDB_OFFLOADED, |
3aeb6617 JP |
141 | }; |
142 | ||
ebb9a03a | 143 | struct switchdev_notifier_info { |
03bf0c28 | 144 | struct net_device *dev; |
479c86dc | 145 | struct netlink_ext_ack *extack; |
03bf0c28 JP |
146 | }; |
147 | ||
ebb9a03a JP |
148 | struct switchdev_notifier_fdb_info { |
149 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
150 | const unsigned char *addr; |
151 | u16 vid; | |
e9ba0fbc IS |
152 | u8 added_by_user:1, |
153 | offloaded:1; | |
3aeb6617 JP |
154 | }; |
155 | ||
aa4efe21 PM |
156 | struct switchdev_notifier_port_obj_info { |
157 | struct switchdev_notifier_info info; /* must be first */ | |
158 | const struct switchdev_obj *obj; | |
159 | struct switchdev_trans *trans; | |
160 | bool handled; | |
161 | }; | |
162 | ||
03bf0c28 | 163 | static inline struct net_device * |
ebb9a03a | 164 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
165 | { |
166 | return info->dev; | |
167 | } | |
007f790c | 168 | |
479c86dc PM |
169 | static inline struct netlink_ext_ack * |
170 | switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info) | |
171 | { | |
172 | return info->extack; | |
173 | } | |
174 | ||
007f790c JP |
175 | #ifdef CONFIG_NET_SWITCHDEV |
176 | ||
793f4014 | 177 | void switchdev_deferred_process(void); |
3094333d | 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, |
69b7320e PM |
181 | const struct switchdev_obj *obj, |
182 | struct netlink_ext_ack *extack); | |
9e8f4a54 | 183 | int switchdev_port_obj_del(struct net_device *dev, |
648b4a99 | 184 | const struct switchdev_obj *obj); |
a93e3b17 | 185 | |
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, | |
6685987c PM |
189 | struct switchdev_notifier_info *info, |
190 | struct netlink_ext_ack *extack); | |
a93e3b17 PM |
191 | |
192 | int register_switchdev_blocking_notifier(struct notifier_block *nb); | |
193 | int unregister_switchdev_blocking_notifier(struct notifier_block *nb); | |
194 | int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev, | |
479c86dc PM |
195 | struct switchdev_notifier_info *info, |
196 | struct netlink_ext_ack *extack); | |
a93e3b17 | 197 | |
1a3b2ec9 SF |
198 | void switchdev_port_fwd_mark_set(struct net_device *dev, |
199 | struct net_device *group_dev, | |
200 | bool joining); | |
5e8d9049 | 201 | |
f30f0601 PM |
202 | int switchdev_handle_port_obj_add(struct net_device *dev, |
203 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
204 | bool (*check_cb)(const struct net_device *dev), | |
205 | int (*add_cb)(struct net_device *dev, | |
206 | const struct switchdev_obj *obj, | |
69213513 PM |
207 | struct switchdev_trans *trans, |
208 | struct netlink_ext_ack *extack)); | |
f30f0601 PM |
209 | int switchdev_handle_port_obj_del(struct net_device *dev, |
210 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
211 | bool (*check_cb)(const struct net_device *dev), | |
212 | int (*del_cb)(struct net_device *dev, | |
213 | const struct switchdev_obj *obj)); | |
214 | ||
d643a75a | 215 | #define SWITCHDEV_SET_OPS(netdev, ops) ((netdev)->switchdev_ops = (ops)) |
007f790c JP |
216 | #else |
217 | ||
793f4014 JP |
218 | static inline void switchdev_deferred_process(void) |
219 | { | |
220 | } | |
221 | ||
3094333d | 222 | static inline int switchdev_port_attr_set(struct net_device *dev, |
f7fadf30 | 223 | const struct switchdev_attr *attr) |
3094333d SF |
224 | { |
225 | return -EOPNOTSUPP; | |
226 | } | |
227 | ||
491d0f15 | 228 | static inline int switchdev_port_obj_add(struct net_device *dev, |
69b7320e PM |
229 | const struct switchdev_obj *obj, |
230 | struct netlink_ext_ack *extack) | |
491d0f15 SF |
231 | { |
232 | return -EOPNOTSUPP; | |
233 | } | |
234 | ||
235 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
648b4a99 | 236 | const struct switchdev_obj *obj) |
491d0f15 SF |
237 | { |
238 | return -EOPNOTSUPP; | |
239 | } | |
240 | ||
ebb9a03a | 241 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
242 | { |
243 | return 0; | |
244 | } | |
245 | ||
ebb9a03a | 246 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
247 | { |
248 | return 0; | |
249 | } | |
250 | ||
ebb9a03a JP |
251 | static inline int call_switchdev_notifiers(unsigned long val, |
252 | struct net_device *dev, | |
6685987c PM |
253 | struct switchdev_notifier_info *info, |
254 | struct netlink_ext_ack *extack) | |
03bf0c28 JP |
255 | { |
256 | return NOTIFY_DONE; | |
257 | } | |
258 | ||
a93e3b17 PM |
259 | static inline int |
260 | register_switchdev_blocking_notifier(struct notifier_block *nb) | |
261 | { | |
262 | return 0; | |
263 | } | |
264 | ||
265 | static inline int | |
266 | unregister_switchdev_blocking_notifier(struct notifier_block *nb) | |
267 | { | |
268 | return 0; | |
269 | } | |
270 | ||
271 | static inline int | |
272 | call_switchdev_blocking_notifiers(unsigned long val, | |
273 | struct net_device *dev, | |
479c86dc PM |
274 | struct switchdev_notifier_info *info, |
275 | struct netlink_ext_ack *extack) | |
a93e3b17 PM |
276 | { |
277 | return NOTIFY_DONE; | |
278 | } | |
279 | ||
f30f0601 PM |
280 | static inline int |
281 | switchdev_handle_port_obj_add(struct net_device *dev, | |
282 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
283 | bool (*check_cb)(const struct net_device *dev), | |
284 | int (*add_cb)(struct net_device *dev, | |
285 | const struct switchdev_obj *obj, | |
69213513 PM |
286 | struct switchdev_trans *trans, |
287 | struct netlink_ext_ack *extack)) | |
f30f0601 PM |
288 | { |
289 | return 0; | |
290 | } | |
291 | ||
292 | static inline int | |
293 | switchdev_handle_port_obj_del(struct net_device *dev, | |
294 | struct switchdev_notifier_port_obj_info *port_obj_info, | |
295 | bool (*check_cb)(const struct net_device *dev), | |
296 | int (*del_cb)(struct net_device *dev, | |
297 | const struct switchdev_obj *obj)) | |
298 | { | |
299 | return 0; | |
300 | } | |
301 | ||
d643a75a SH |
302 | #define SWITCHDEV_SET_OPS(netdev, ops) do {} while (0) |
303 | ||
007f790c JP |
304 | #endif |
305 | ||
306 | #endif /* _LINUX_SWITCHDEV_H_ */ |