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007f790c JP |
1 | /* |
2 | * include/net/switchdev.h - Switch device API | |
3 | * Copyright (c) 2014 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 JP |
15 | #include <linux/notifier.h> |
16 | ||
3094333d SF |
17 | #define SWITCHDEV_F_NO_RECURSE BIT(0) |
18 | ||
19 | enum switchdev_trans { | |
20 | SWITCHDEV_TRANS_NONE, | |
21 | SWITCHDEV_TRANS_PREPARE, | |
22 | SWITCHDEV_TRANS_ABORT, | |
23 | SWITCHDEV_TRANS_COMMIT, | |
24 | }; | |
25 | ||
26 | enum switchdev_attr_id { | |
27 | SWITCHDEV_ATTR_UNDEFINED, | |
f8e20a9f | 28 | SWITCHDEV_ATTR_PORT_PARENT_ID, |
35636062 | 29 | SWITCHDEV_ATTR_PORT_STP_STATE, |
6004c867 | 30 | SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS, |
3094333d SF |
31 | }; |
32 | ||
33 | struct switchdev_attr { | |
34 | enum switchdev_attr_id id; | |
35 | enum switchdev_trans trans; | |
36 | u32 flags; | |
f8e20a9f SF |
37 | union { |
38 | struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ | |
35636062 | 39 | u8 stp_state; /* PORT_STP_STATE */ |
6004c867 | 40 | unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
42275bd8 | 41 | } u; |
3094333d SF |
42 | }; |
43 | ||
4170604f SF |
44 | struct fib_info; |
45 | ||
491d0f15 SF |
46 | enum switchdev_obj_id { |
47 | SWITCHDEV_OBJ_UNDEFINED, | |
6fc3016d | 48 | SWITCHDEV_OBJ_PORT_VLAN, |
58c2cb16 | 49 | SWITCHDEV_OBJ_IPV4_FIB, |
45d4122c | 50 | SWITCHDEV_OBJ_PORT_FDB, |
491d0f15 SF |
51 | }; |
52 | ||
53 | struct switchdev_obj { | |
54 | enum switchdev_obj_id id; | |
55 | enum switchdev_trans trans; | |
45d4122c | 56 | int (*cb)(struct net_device *dev, struct switchdev_obj *obj); |
6fc3016d | 57 | union { |
5eb764ed | 58 | struct switchdev_obj_vlan { /* PORT_VLAN */ |
6fc3016d | 59 | u16 flags; |
3e3a78b4 | 60 | u16 vid_begin; |
6fc3016d SF |
61 | u16 vid_end; |
62 | } vlan; | |
58c2cb16 SF |
63 | struct switchdev_obj_ipv4_fib { /* IPV4_FIB */ |
64 | u32 dst; | |
65 | int dst_len; | |
66 | struct fib_info *fi; | |
67 | u8 tos; | |
68 | u8 type; | |
69 | u32 nlflags; | |
70 | u32 tb_id; | |
71 | } ipv4_fib; | |
45d4122c SS |
72 | struct switchdev_obj_fdb { /* PORT_FDB */ |
73 | const unsigned char *addr; | |
74 | u16 vid; | |
75 | } fdb; | |
42275bd8 | 76 | } u; |
491d0f15 SF |
77 | }; |
78 | ||
4170604f SF |
79 | /** |
80 | * struct switchdev_ops - switchdev operations | |
81 | * | |
3094333d SF |
82 | * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). |
83 | * | |
84 | * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). | |
85 | * | |
491d0f15 SF |
86 | * @switchdev_port_obj_add: Add an object to port (see switchdev_obj). |
87 | * | |
88 | * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj). | |
45d4122c SS |
89 | * |
90 | * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj). | |
4170604f | 91 | */ |
9d47c0a2 | 92 | struct switchdev_ops { |
3094333d SF |
93 | int (*switchdev_port_attr_get)(struct net_device *dev, |
94 | struct switchdev_attr *attr); | |
95 | int (*switchdev_port_attr_set)(struct net_device *dev, | |
96 | struct switchdev_attr *attr); | |
491d0f15 SF |
97 | int (*switchdev_port_obj_add)(struct net_device *dev, |
98 | struct switchdev_obj *obj); | |
99 | int (*switchdev_port_obj_del)(struct net_device *dev, | |
100 | struct switchdev_obj *obj); | |
45d4122c SS |
101 | int (*switchdev_port_obj_dump)(struct net_device *dev, |
102 | struct switchdev_obj *obj); | |
4170604f SF |
103 | }; |
104 | ||
ebb9a03a JP |
105 | enum switchdev_notifier_type { |
106 | SWITCHDEV_FDB_ADD = 1, | |
107 | SWITCHDEV_FDB_DEL, | |
3aeb6617 JP |
108 | }; |
109 | ||
ebb9a03a | 110 | struct switchdev_notifier_info { |
03bf0c28 JP |
111 | struct net_device *dev; |
112 | }; | |
113 | ||
ebb9a03a JP |
114 | struct switchdev_notifier_fdb_info { |
115 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
116 | const unsigned char *addr; |
117 | u16 vid; | |
118 | }; | |
119 | ||
03bf0c28 | 120 | static inline struct net_device * |
ebb9a03a | 121 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
122 | { |
123 | return info->dev; | |
124 | } | |
007f790c JP |
125 | |
126 | #ifdef CONFIG_NET_SWITCHDEV | |
127 | ||
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, | |
131 | struct switchdev_attr *attr); | |
491d0f15 SF |
132 | int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj); |
133 | int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj); | |
45d4122c | 134 | int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj); |
ebb9a03a JP |
135 | int register_switchdev_notifier(struct notifier_block *nb); |
136 | int unregister_switchdev_notifier(struct notifier_block *nb); | |
137 | int call_switchdev_notifiers(unsigned long val, struct net_device *dev, | |
138 | struct switchdev_notifier_info *info); | |
8793d0a6 SF |
139 | int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
140 | struct net_device *dev, u32 filter_mask, | |
141 | int nlflags); | |
ebb9a03a JP |
142 | int switchdev_port_bridge_setlink(struct net_device *dev, |
143 | struct nlmsghdr *nlh, u16 flags); | |
144 | int switchdev_port_bridge_dellink(struct net_device *dev, | |
145 | struct nlmsghdr *nlh, u16 flags); | |
ebb9a03a JP |
146 | int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, |
147 | u8 tos, u8 type, u32 nlflags, u32 tb_id); | |
148 | int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, | |
149 | u8 tos, u8 type, u32 tb_id); | |
150 | void switchdev_fib_ipv4_abort(struct fib_info *fi); | |
45d4122c SS |
151 | int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
152 | struct net_device *dev, const unsigned char *addr, | |
153 | u16 vid, u16 nlm_flags); | |
154 | int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
155 | struct net_device *dev, const unsigned char *addr, | |
156 | u16 vid); | |
157 | int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
158 | struct net_device *dev, | |
159 | struct net_device *filter_dev, int idx); | |
5e8d9049 | 160 | |
007f790c JP |
161 | #else |
162 | ||
3094333d SF |
163 | static inline int switchdev_port_attr_get(struct net_device *dev, |
164 | struct switchdev_attr *attr) | |
165 | { | |
166 | return -EOPNOTSUPP; | |
167 | } | |
168 | ||
169 | static inline int switchdev_port_attr_set(struct net_device *dev, | |
170 | struct switchdev_attr *attr) | |
171 | { | |
172 | return -EOPNOTSUPP; | |
173 | } | |
174 | ||
491d0f15 SF |
175 | static inline int switchdev_port_obj_add(struct net_device *dev, |
176 | struct switchdev_obj *obj) | |
177 | { | |
178 | return -EOPNOTSUPP; | |
179 | } | |
180 | ||
181 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
182 | struct switchdev_obj *obj) | |
183 | { | |
184 | return -EOPNOTSUPP; | |
185 | } | |
186 | ||
45d4122c SS |
187 | static inline int switchdev_port_obj_dump(struct net_device *dev, |
188 | struct switchdev_obj *obj) | |
189 | { | |
190 | return -EOPNOTSUPP; | |
191 | } | |
192 | ||
ebb9a03a | 193 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
194 | { |
195 | return 0; | |
196 | } | |
197 | ||
ebb9a03a | 198 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
199 | { |
200 | return 0; | |
201 | } | |
202 | ||
ebb9a03a JP |
203 | static inline int call_switchdev_notifiers(unsigned long val, |
204 | struct net_device *dev, | |
205 | struct switchdev_notifier_info *info) | |
03bf0c28 JP |
206 | { |
207 | return NOTIFY_DONE; | |
208 | } | |
209 | ||
8793d0a6 SF |
210 | static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, |
211 | u32 seq, struct net_device *dev, | |
212 | u32 filter_mask, int nlflags) | |
213 | { | |
214 | return -EOPNOTSUPP; | |
215 | } | |
216 | ||
ebb9a03a JP |
217 | static inline int switchdev_port_bridge_setlink(struct net_device *dev, |
218 | struct nlmsghdr *nlh, | |
219 | u16 flags) | |
8a44dbb2 RP |
220 | { |
221 | return -EOPNOTSUPP; | |
222 | } | |
223 | ||
ebb9a03a JP |
224 | static inline int switchdev_port_bridge_dellink(struct net_device *dev, |
225 | struct nlmsghdr *nlh, | |
226 | u16 flags) | |
8a44dbb2 RP |
227 | { |
228 | return -EOPNOTSUPP; | |
229 | } | |
230 | ||
ebb9a03a JP |
231 | static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len, |
232 | struct fib_info *fi, | |
233 | u8 tos, u8 type, | |
234 | u32 nlflags, u32 tb_id) | |
5e8d9049 SF |
235 | { |
236 | return 0; | |
237 | } | |
238 | ||
ebb9a03a JP |
239 | static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len, |
240 | struct fib_info *fi, | |
241 | u8 tos, u8 type, u32 tb_id) | |
5e8d9049 SF |
242 | { |
243 | return 0; | |
244 | } | |
245 | ||
ebb9a03a | 246 | static inline void switchdev_fib_ipv4_abort(struct fib_info *fi) |
8e05fd71 SF |
247 | { |
248 | } | |
249 | ||
45d4122c SS |
250 | static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
251 | struct net_device *dev, | |
252 | const unsigned char *addr, | |
253 | u16 vid, u16 nlm_flags) | |
254 | { | |
255 | return -EOPNOTSUPP; | |
256 | } | |
257 | ||
258 | static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
259 | struct net_device *dev, | |
260 | const unsigned char *addr, u16 vid) | |
261 | { | |
262 | return -EOPNOTSUPP; | |
263 | } | |
264 | ||
265 | static inline int switchdev_port_fdb_dump(struct sk_buff *skb, | |
266 | struct netlink_callback *cb, | |
267 | struct net_device *dev, | |
268 | struct net_device *filter_dev, | |
269 | int idx) | |
270 | { | |
271 | return -EOPNOTSUPP; | |
272 | } | |
273 | ||
007f790c JP |
274 | #endif |
275 | ||
276 | #endif /* _LINUX_SWITCHDEV_H_ */ |