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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, |
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 SF |
62 | union { |
63 | struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ | |
35636062 | 64 | u8 stp_state; /* PORT_STP_STATE */ |
6004c867 | 65 | unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
dc0ecabd | 66 | unsigned long brport_flags_support; /* PORT_BRIDGE_FLAGS_SUPPORT */ |
6d549648 | 67 | bool mrouter; /* PORT_MROUTER */ |
eabfdda9 | 68 | clock_t ageing_time; /* BRIDGE_AGEING_TIME */ |
81435c33 | 69 | bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ |
147c1e9b | 70 | bool mc_disabled; /* MC_DISABLED */ |
42275bd8 | 71 | } u; |
3094333d SF |
72 | }; |
73 | ||
491d0f15 | 74 | enum switchdev_obj_id { |
57d80838 JP |
75 | SWITCHDEV_OBJ_ID_UNDEFINED, |
76 | SWITCHDEV_OBJ_ID_PORT_VLAN, | |
4d41e125 | 77 | SWITCHDEV_OBJ_ID_PORT_MDB, |
491d0f15 SF |
78 | }; |
79 | ||
648b4a99 | 80 | struct switchdev_obj { |
6ff64f6f | 81 | struct net_device *orig_dev; |
9e8f4a54 | 82 | enum switchdev_obj_id id; |
4d429c5d | 83 | u32 flags; |
7ceb2afb ER |
84 | void *complete_priv; |
85 | void (*complete)(struct net_device *dev, int err, void *priv); | |
648b4a99 JP |
86 | }; |
87 | ||
57d80838 | 88 | /* SWITCHDEV_OBJ_ID_PORT_VLAN */ |
8f24f309 | 89 | struct switchdev_obj_port_vlan { |
648b4a99 | 90 | struct switchdev_obj obj; |
44bbcf5c VD |
91 | u16 flags; |
92 | u16 vid_begin; | |
93 | u16 vid_end; | |
94 | }; | |
95 | ||
648b4a99 JP |
96 | #define SWITCHDEV_OBJ_PORT_VLAN(obj) \ |
97 | container_of(obj, struct switchdev_obj_port_vlan, obj) | |
98 | ||
4d41e125 ER |
99 | /* SWITCHDEV_OBJ_ID_PORT_MDB */ |
100 | struct switchdev_obj_port_mdb { | |
101 | struct switchdev_obj obj; | |
102 | unsigned char addr[ETH_ALEN]; | |
103 | u16 vid; | |
104 | }; | |
105 | ||
106 | #define SWITCHDEV_OBJ_PORT_MDB(obj) \ | |
107 | container_of(obj, struct switchdev_obj_port_mdb, obj) | |
108 | ||
7ea6eb3f JP |
109 | void switchdev_trans_item_enqueue(struct switchdev_trans *trans, |
110 | void *data, void (*destructor)(void const *), | |
111 | struct switchdev_trans_item *tritem); | |
112 | void *switchdev_trans_item_dequeue(struct switchdev_trans *trans); | |
113 | ||
648b4a99 JP |
114 | typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj); |
115 | ||
4170604f SF |
116 | /** |
117 | * struct switchdev_ops - switchdev operations | |
118 | * | |
3094333d SF |
119 | * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). |
120 | * | |
121 | * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). | |
122 | * | |
44bbcf5c | 123 | * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*). |
491d0f15 | 124 | * |
44bbcf5c | 125 | * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*). |
4170604f | 126 | */ |
9d47c0a2 | 127 | struct switchdev_ops { |
3094333d SF |
128 | int (*switchdev_port_attr_get)(struct net_device *dev, |
129 | struct switchdev_attr *attr); | |
130 | int (*switchdev_port_attr_set)(struct net_device *dev, | |
f7fadf30 | 131 | const struct switchdev_attr *attr, |
7ea6eb3f | 132 | struct switchdev_trans *trans); |
491d0f15 | 133 | int (*switchdev_port_obj_add)(struct net_device *dev, |
648b4a99 | 134 | const struct switchdev_obj *obj, |
7ea6eb3f | 135 | struct switchdev_trans *trans); |
491d0f15 | 136 | int (*switchdev_port_obj_del)(struct net_device *dev, |
648b4a99 | 137 | const struct switchdev_obj *obj); |
4170604f SF |
138 | }; |
139 | ||
ebb9a03a | 140 | enum switchdev_notifier_type { |
6b26b51b AS |
141 | SWITCHDEV_FDB_ADD_TO_BRIDGE = 1, |
142 | SWITCHDEV_FDB_DEL_TO_BRIDGE, | |
143 | SWITCHDEV_FDB_ADD_TO_DEVICE, | |
144 | SWITCHDEV_FDB_DEL_TO_DEVICE, | |
9fe8bcec | 145 | SWITCHDEV_FDB_OFFLOADED, |
3aeb6617 JP |
146 | }; |
147 | ||
ebb9a03a | 148 | struct switchdev_notifier_info { |
03bf0c28 JP |
149 | struct net_device *dev; |
150 | }; | |
151 | ||
ebb9a03a JP |
152 | struct switchdev_notifier_fdb_info { |
153 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
154 | const unsigned char *addr; |
155 | u16 vid; | |
156 | }; | |
157 | ||
03bf0c28 | 158 | static inline struct net_device * |
ebb9a03a | 159 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
160 | { |
161 | return info->dev; | |
162 | } | |
007f790c JP |
163 | |
164 | #ifdef CONFIG_NET_SWITCHDEV | |
165 | ||
793f4014 | 166 | void switchdev_deferred_process(void); |
3094333d SF |
167 | int switchdev_port_attr_get(struct net_device *dev, |
168 | struct switchdev_attr *attr); | |
169 | int switchdev_port_attr_set(struct net_device *dev, | |
f7fadf30 | 170 | const struct switchdev_attr *attr); |
9e8f4a54 | 171 | int switchdev_port_obj_add(struct net_device *dev, |
648b4a99 | 172 | const struct switchdev_obj *obj); |
9e8f4a54 | 173 | int switchdev_port_obj_del(struct net_device *dev, |
648b4a99 | 174 | const struct switchdev_obj *obj); |
ebb9a03a JP |
175 | int register_switchdev_notifier(struct notifier_block *nb); |
176 | int unregister_switchdev_notifier(struct notifier_block *nb); | |
177 | int call_switchdev_notifiers(unsigned long val, struct net_device *dev, | |
178 | struct switchdev_notifier_info *info); | |
1a3b2ec9 SF |
179 | void switchdev_port_fwd_mark_set(struct net_device *dev, |
180 | struct net_device *group_dev, | |
181 | bool joining); | |
5e8d9049 | 182 | |
8438884d OG |
183 | bool switchdev_port_same_parent_id(struct net_device *a, |
184 | struct net_device *b); | |
d643a75a SH |
185 | |
186 | #define SWITCHDEV_SET_OPS(netdev, ops) ((netdev)->switchdev_ops = (ops)) | |
007f790c JP |
187 | #else |
188 | ||
793f4014 JP |
189 | static inline void switchdev_deferred_process(void) |
190 | { | |
191 | } | |
192 | ||
3094333d SF |
193 | static inline int switchdev_port_attr_get(struct net_device *dev, |
194 | struct switchdev_attr *attr) | |
195 | { | |
196 | return -EOPNOTSUPP; | |
197 | } | |
198 | ||
199 | static inline int switchdev_port_attr_set(struct net_device *dev, | |
f7fadf30 | 200 | const struct switchdev_attr *attr) |
3094333d SF |
201 | { |
202 | return -EOPNOTSUPP; | |
203 | } | |
204 | ||
491d0f15 | 205 | static inline int switchdev_port_obj_add(struct net_device *dev, |
648b4a99 | 206 | const struct switchdev_obj *obj) |
491d0f15 SF |
207 | { |
208 | return -EOPNOTSUPP; | |
209 | } | |
210 | ||
211 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
648b4a99 | 212 | const struct switchdev_obj *obj) |
491d0f15 SF |
213 | { |
214 | return -EOPNOTSUPP; | |
215 | } | |
216 | ||
ebb9a03a | 217 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
218 | { |
219 | return 0; | |
220 | } | |
221 | ||
ebb9a03a | 222 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
223 | { |
224 | return 0; | |
225 | } | |
226 | ||
ebb9a03a JP |
227 | static inline int call_switchdev_notifiers(unsigned long val, |
228 | struct net_device *dev, | |
229 | struct switchdev_notifier_info *info) | |
03bf0c28 JP |
230 | { |
231 | return NOTIFY_DONE; | |
232 | } | |
233 | ||
8438884d OG |
234 | static inline bool switchdev_port_same_parent_id(struct net_device *a, |
235 | struct net_device *b) | |
236 | { | |
237 | return false; | |
238 | } | |
239 | ||
d643a75a SH |
240 | #define SWITCHDEV_SET_OPS(netdev, ops) do {} while (0) |
241 | ||
007f790c JP |
242 | #endif |
243 | ||
244 | #endif /* _LINUX_SWITCHDEV_H_ */ |