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11#ifndef _LINUX_SWITCHDEV_H_
12#define _LINUX_SWITCHDEV_H_
13
14#include <linux/netdevice.h>
15#include <linux/notifier.h>
16#include <linux/list.h>
17#include <net/ip_fib.h>
18
19#include <linux/rh_kabi.h>
20
21#define SWITCHDEV_F_NO_RECURSE BIT(0)
22#define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1)
23#define SWITCHDEV_F_DEFER BIT(2)
24
25struct switchdev_trans_item {
26 struct list_head list;
27 void *data;
28 void (*destructor)(const void *data);
29};
30
31struct switchdev_trans {
32 struct list_head item_list;
33 bool ph_prepare;
34};
35
36static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
37{
38 return trans && trans->ph_prepare;
39}
40
41static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
42{
43 return trans && !trans->ph_prepare;
44}
45
46enum switchdev_attr_id {
47 SWITCHDEV_ATTR_ID_UNDEFINED,
48 RH_KABI_RENAME(SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
49 RH_DEPRECATED_SWITCHDEV_ATTR_ID_PORT_PARENT_ID),
50 SWITCHDEV_ATTR_ID_PORT_STP_STATE,
51 SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
52 RH_KABI_RENAME(SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
53 RH_DEPRECATED_SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT),
54 SWITCHDEV_ATTR_ID_PORT_MROUTER,
55 SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
56 SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
57 SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
58 SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
59#ifndef __GENKSYMS__
60 SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
61#endif
62};
63
64struct switchdev_attr {
65 struct net_device *orig_dev;
66 enum switchdev_attr_id id;
67 u32 flags;
68 void *complete_priv;
69 void (*complete)(struct net_device *dev, int err, void *priv);
70 union {
71 RH_KABI_DEPRECATE(struct netdev_phys_item_id, ppid)
72 u8 stp_state;
73 unsigned long brport_flags;
74 RH_KABI_DEPRECATE(unsigned long, brport_flags_support)
75 bool mrouter;
76 clock_t ageing_time;
77 bool vlan_filtering;
78 bool mc_disabled;
79 } u;
80};
81
82enum switchdev_obj_id {
83 SWITCHDEV_OBJ_ID_UNDEFINED,
84 SWITCHDEV_OBJ_ID_PORT_VLAN,
85 SWITCHDEV_OBJ_ID_PORT_MDB,
86 SWITCHDEV_OBJ_ID_HOST_MDB,
87};
88
89struct switchdev_obj {
90 struct net_device *orig_dev;
91 enum switchdev_obj_id id;
92 u32 flags;
93 void *complete_priv;
94 void (*complete)(struct net_device *dev, int err, void *priv);
95
96 RH_KABI_RESERVE(1)
97 RH_KABI_RESERVE(2)
98 RH_KABI_RESERVE(3)
99 RH_KABI_RESERVE(4)
100};
101
102
103struct switchdev_obj_port_vlan {
104 struct switchdev_obj obj;
105 u16 flags;
106 u16 vid_begin;
107 u16 vid_end;
108};
109
110#define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
111 container_of((OBJ), struct switchdev_obj_port_vlan, obj)
112
113
114struct switchdev_obj_port_mdb {
115 struct switchdev_obj obj;
116 unsigned char addr[ETH_ALEN];
117 u16 vid;
118};
119
120#define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
121 container_of((OBJ), struct switchdev_obj_port_mdb, obj)
122
123void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
124 void *data, void (*destructor)(void const *),
125 struct switchdev_trans_item *tritem);
126void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
127
128typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
129
130struct switchdev_ops_extended_rh {
131};
132
133
134
135
136
137
138struct RH_KABI_RENAME(switchdev_ops, rh_deprecated_switchdev_ops) {
139 RH_KABI_DEPRECATE_FN(int, switchdev_port_attr_get, struct net_device *dev,
140 struct switchdev_attr *attr)
141 RH_KABI_DEPRECATE_FN(int, switchdev_port_attr_set, struct net_device *dev,
142 const struct switchdev_attr *attr,
143 struct switchdev_trans *trans)
144 RH_KABI_DEPRECATE_FN(int, switchdev_port_obj_add, struct net_device *dev,
145 const struct switchdev_obj *obj,
146 struct switchdev_trans *trans)
147 RH_KABI_DEPRECATE_FN(int, switchdev_port_obj_del, struct net_device *dev,
148 const struct switchdev_obj *obj)
149
150 RH_KABI_RESERVE(1)
151 RH_KABI_RESERVE(2)
152 RH_KABI_RESERVE(3)
153 RH_KABI_RESERVE(4)
154 RH_KABI_RESERVE(5)
155 RH_KABI_RESERVE(6)
156 RH_KABI_RESERVE(7)
157 RH_KABI_AUX_EMBED(switchdev_ops_extended)
158};
159
160enum switchdev_notifier_type {
161 SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
162 SWITCHDEV_FDB_DEL_TO_BRIDGE,
163 SWITCHDEV_FDB_ADD_TO_DEVICE,
164 SWITCHDEV_FDB_DEL_TO_DEVICE,
165 SWITCHDEV_FDB_OFFLOADED,
166
167 SWITCHDEV_PORT_OBJ_ADD,
168 SWITCHDEV_PORT_OBJ_DEL,
169 SWITCHDEV_PORT_ATTR_SET,
170
171 SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
172 SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
173 SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
174 SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
175 SWITCHDEV_VXLAN_FDB_OFFLOADED,
176};
177
178struct switchdev_notifier_info {
179 struct net_device *dev;
180 struct netlink_ext_ack *extack;
181};
182
183struct switchdev_notifier_fdb_info {
184 struct switchdev_notifier_info info;
185 const unsigned char *addr;
186 u16 vid;
187 u8 added_by_user:1,
188 offloaded:1;
189};
190
191struct switchdev_notifier_port_obj_info {
192 struct switchdev_notifier_info info;
193 const struct switchdev_obj *obj;
194 struct switchdev_trans *trans;
195 bool handled;
196};
197
198struct switchdev_notifier_port_attr_info {
199 struct switchdev_notifier_info info;
200 const struct switchdev_attr *attr;
201 struct switchdev_trans *trans;
202 bool handled;
203};
204
205static inline struct net_device *
206switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
207{
208 return info->dev;
209}
210
211static inline struct netlink_ext_ack *
212switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
213{
214 return info->extack;
215}
216
217#ifdef CONFIG_NET_SWITCHDEV
218
219void switchdev_deferred_process(void);
220int switchdev_port_attr_set(struct net_device *dev,
221 const struct switchdev_attr *attr);
222int switchdev_port_obj_add(struct net_device *dev,
223 const struct switchdev_obj *obj,
224 struct netlink_ext_ack *extack);
225int switchdev_port_obj_del(struct net_device *dev,
226 const struct switchdev_obj *obj);
227
228int register_switchdev_notifier(struct notifier_block *nb);
229int unregister_switchdev_notifier(struct notifier_block *nb);
230int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
231 struct switchdev_notifier_info *info,
232 struct netlink_ext_ack *extack);
233
234int register_switchdev_blocking_notifier(struct notifier_block *nb);
235int unregister_switchdev_blocking_notifier(struct notifier_block *nb);
236int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
237 struct switchdev_notifier_info *info,
238 struct netlink_ext_ack *extack);
239
240void switchdev_port_fwd_mark_set(struct net_device *dev,
241 struct net_device *group_dev,
242 bool joining);
243
244int switchdev_handle_port_obj_add(struct net_device *dev,
245 struct switchdev_notifier_port_obj_info *port_obj_info,
246 bool (*check_cb)(const struct net_device *dev),
247 int (*add_cb)(struct net_device *dev,
248 const struct switchdev_obj *obj,
249 struct switchdev_trans *trans,
250 struct netlink_ext_ack *extack));
251int switchdev_handle_port_obj_del(struct net_device *dev,
252 struct switchdev_notifier_port_obj_info *port_obj_info,
253 bool (*check_cb)(const struct net_device *dev),
254 int (*del_cb)(struct net_device *dev,
255 const struct switchdev_obj *obj));
256
257int switchdev_handle_port_attr_set(struct net_device *dev,
258 struct switchdev_notifier_port_attr_info *port_attr_info,
259 bool (*check_cb)(const struct net_device *dev),
260 int (*set_cb)(struct net_device *dev,
261 const struct switchdev_attr *attr,
262 struct switchdev_trans *trans));
263#else
264
265static inline void switchdev_deferred_process(void)
266{
267}
268
269static inline int switchdev_port_attr_set(struct net_device *dev,
270 const struct switchdev_attr *attr)
271{
272 return -EOPNOTSUPP;
273}
274
275static inline int switchdev_port_obj_add(struct net_device *dev,
276 const struct switchdev_obj *obj,
277 struct netlink_ext_ack *extack)
278{
279 return -EOPNOTSUPP;
280}
281
282static inline int switchdev_port_obj_del(struct net_device *dev,
283 const struct switchdev_obj *obj)
284{
285 return -EOPNOTSUPP;
286}
287
288static inline int register_switchdev_notifier(struct notifier_block *nb)
289{
290 return 0;
291}
292
293static inline int unregister_switchdev_notifier(struct notifier_block *nb)
294{
295 return 0;
296}
297
298static inline int call_switchdev_notifiers(unsigned long val,
299 struct net_device *dev,
300 struct switchdev_notifier_info *info,
301 struct netlink_ext_ack *extack)
302{
303 return NOTIFY_DONE;
304}
305
306static inline int
307register_switchdev_blocking_notifier(struct notifier_block *nb)
308{
309 return 0;
310}
311
312static inline int
313unregister_switchdev_blocking_notifier(struct notifier_block *nb)
314{
315 return 0;
316}
317
318static inline int
319call_switchdev_blocking_notifiers(unsigned long val,
320 struct net_device *dev,
321 struct switchdev_notifier_info *info,
322 struct netlink_ext_ack *extack)
323{
324 return NOTIFY_DONE;
325}
326
327static inline int
328switchdev_handle_port_obj_add(struct net_device *dev,
329 struct switchdev_notifier_port_obj_info *port_obj_info,
330 bool (*check_cb)(const struct net_device *dev),
331 int (*add_cb)(struct net_device *dev,
332 const struct switchdev_obj *obj,
333 struct switchdev_trans *trans,
334 struct netlink_ext_ack *extack))
335{
336 return 0;
337}
338
339static inline int
340switchdev_handle_port_obj_del(struct net_device *dev,
341 struct switchdev_notifier_port_obj_info *port_obj_info,
342 bool (*check_cb)(const struct net_device *dev),
343 int (*del_cb)(struct net_device *dev,
344 const struct switchdev_obj *obj))
345{
346 return 0;
347}
348
349static inline int
350switchdev_handle_port_attr_set(struct net_device *dev,
351 struct switchdev_notifier_port_attr_info *port_attr_info,
352 bool (*check_cb)(const struct net_device *dev),
353 int (*set_cb)(struct net_device *dev,
354 const struct switchdev_attr *attr,
355 struct switchdev_trans *trans))
356{
357 return 0;
358}
359#endif
360
361#endif
362
