]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blame - include/net/switchdev.h
switchdev: introduce switchdev deferred ops infrastructure
[mirror_ubuntu-eoan-kernel.git] / include / net / switchdev.h
CommitLineData
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
21struct switchdev_trans_item {
22 struct list_head list;
23 void *data;
24 void (*destructor)(const void *data);
25};
26
27struct switchdev_trans {
28 struct list_head item_list;
f623ab7f 29 bool ph_prepare;
7ea6eb3f
JP
30};
31
8bdb4272
JP
32static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
33{
f623ab7f 34 return trans && trans->ph_prepare;
8bdb4272
JP
35}
36
37static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
38{
f623ab7f 39 return trans && !trans->ph_prepare;
8bdb4272
JP
40}
41
3094333d 42enum 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
50struct 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
61struct fib_info;
62
491d0f15 63enum 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 70struct switchdev_obj {
9e8f4a54 71 enum switchdev_obj_id id;
648b4a99
JP
72};
73
57d80838 74/* SWITCHDEV_OBJ_ID_PORT_VLAN */
8f24f309 75struct 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 86struct 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 101struct 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
111void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
112 void *data, void (*destructor)(void const *),
113 struct switchdev_trans_item *tritem);
114void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
115
648b4a99
JP
116typedef 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 131struct 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
147enum switchdev_notifier_type {
148 SWITCHDEV_FDB_ADD = 1,
149 SWITCHDEV_FDB_DEL,
3aeb6617
JP
150};
151
ebb9a03a 152struct switchdev_notifier_info {
03bf0c28
JP
153 struct net_device *dev;
154};
155
ebb9a03a
JP
156struct 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 162static inline struct net_device *
ebb9a03a 163switchdev_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 170void switchdev_deferred_process(void);
3094333d
SF
171int switchdev_port_attr_get(struct net_device *dev,
172 struct switchdev_attr *attr);
173int switchdev_port_attr_set(struct net_device *dev,
174 struct switchdev_attr *attr);
9e8f4a54 175int switchdev_port_obj_add(struct net_device *dev,
648b4a99 176 const struct switchdev_obj *obj);
9e8f4a54 177int switchdev_port_obj_del(struct net_device *dev,
648b4a99 178 const struct switchdev_obj *obj);
9e8f4a54 179int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj,
648b4a99 180 switchdev_obj_dump_cb_t *cb);
ebb9a03a
JP
181int register_switchdev_notifier(struct notifier_block *nb);
182int unregister_switchdev_notifier(struct notifier_block *nb);
183int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
184 struct switchdev_notifier_info *info);
8793d0a6
SF
185int 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
188int switchdev_port_bridge_setlink(struct net_device *dev,
189 struct nlmsghdr *nlh, u16 flags);
190int switchdev_port_bridge_dellink(struct net_device *dev,
191 struct nlmsghdr *nlh, u16 flags);
ebb9a03a
JP
192int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
193 u8 tos, u8 type, u32 nlflags, u32 tb_id);
194int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
195 u8 tos, u8 type, u32 tb_id);
196void switchdev_fib_ipv4_abort(struct fib_info *fi);
45d4122c
SS
197int 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);
200int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
201 struct net_device *dev, const unsigned char *addr,
202 u16 vid);
203int 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
206void 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
212static inline void switchdev_deferred_process(void)
213{
214}
215
3094333d
SF
216static inline int switchdev_port_attr_get(struct net_device *dev,
217 struct switchdev_attr *attr)
218{
219 return -EOPNOTSUPP;
220}
221
222static inline int switchdev_port_attr_set(struct net_device *dev,
223 struct switchdev_attr *attr)
224{
225 return -EOPNOTSUPP;
226}
227
491d0f15 228static 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
234static 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 240static 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 247static inline int register_switchdev_notifier(struct notifier_block *nb)
03bf0c28
JP
248{
249 return 0;
250}
251
ebb9a03a 252static inline int unregister_switchdev_notifier(struct notifier_block *nb)
03bf0c28
JP
253{
254 return 0;
255}
256
ebb9a03a
JP
257static 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
264static 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
271static 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
278static 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
285static 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
293static 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 300static inline void switchdev_fib_ipv4_abort(struct fib_info *fi)
8e05fd71
SF
301{
302}
303
45d4122c
SS
304static 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
312static 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
319static 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
328static 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_ */