2 * include/net/switchdev.h - Switch device API
3 * Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
4 * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
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.
11 #ifndef _LINUX_SWITCHDEV_H_
12 #define _LINUX_SWITCHDEV_H_
14 #include <linux/netdevice.h>
15 #include <linux/notifier.h>
16 #include <linux/list.h>
17 #include <net/ip_fib.h>
19 #define SWITCHDEV_F_NO_RECURSE BIT(0)
20 #define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1)
21 #define SWITCHDEV_F_DEFER BIT(2)
23 struct switchdev_trans_item {
24 struct list_head list;
26 void (*destructor)(const void *data);
29 struct switchdev_trans {
30 struct list_head item_list;
34 static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
36 return trans && trans->ph_prepare;
39 static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
41 return trans && !trans->ph_prepare;
44 enum switchdev_attr_id {
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,
49 SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
50 SWITCHDEV_ATTR_ID_PORT_MROUTER,
51 SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
52 SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
53 SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
54 SWITCHDEV_ATTR_ID_BRIDGE_MROUTER,
57 struct switchdev_attr {
58 struct net_device *orig_dev;
59 enum switchdev_attr_id id;
62 void (*complete)(struct net_device *dev, int err, void *priv);
64 struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
65 u8 stp_state; /* PORT_STP_STATE */
66 unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */
67 unsigned long brport_flags_support; /* PORT_BRIDGE_FLAGS_SUPPORT */
68 bool mrouter; /* PORT_MROUTER */
69 clock_t ageing_time; /* BRIDGE_AGEING_TIME */
70 bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */
71 bool mc_disabled; /* MC_DISABLED */
75 enum switchdev_obj_id {
76 SWITCHDEV_OBJ_ID_UNDEFINED,
77 SWITCHDEV_OBJ_ID_PORT_VLAN,
78 SWITCHDEV_OBJ_ID_PORT_MDB,
79 SWITCHDEV_OBJ_ID_HOST_MDB,
82 struct switchdev_obj {
83 struct net_device *orig_dev;
84 enum switchdev_obj_id id;
87 void (*complete)(struct net_device *dev, int err, void *priv);
90 /* SWITCHDEV_OBJ_ID_PORT_VLAN */
91 struct switchdev_obj_port_vlan {
92 struct switchdev_obj obj;
98 #define SWITCHDEV_OBJ_PORT_VLAN(OBJ) \
99 container_of((OBJ), struct switchdev_obj_port_vlan, obj)
101 /* SWITCHDEV_OBJ_ID_PORT_MDB */
102 struct switchdev_obj_port_mdb {
103 struct switchdev_obj obj;
104 unsigned char addr[ETH_ALEN];
108 #define SWITCHDEV_OBJ_PORT_MDB(OBJ) \
109 container_of((OBJ), struct switchdev_obj_port_mdb, obj)
111 void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
112 void *data, void (*destructor)(void const *),
113 struct switchdev_trans_item *tritem);
114 void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
116 typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
119 * struct switchdev_ops - switchdev operations
121 * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
123 * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
125 struct switchdev_ops {
126 int (*switchdev_port_attr_get)(struct net_device *dev,
127 struct switchdev_attr *attr);
128 int (*switchdev_port_attr_set)(struct net_device *dev,
129 const struct switchdev_attr *attr,
130 struct switchdev_trans *trans);
133 enum switchdev_notifier_type {
134 SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
135 SWITCHDEV_FDB_DEL_TO_BRIDGE,
136 SWITCHDEV_FDB_ADD_TO_DEVICE,
137 SWITCHDEV_FDB_DEL_TO_DEVICE,
138 SWITCHDEV_FDB_OFFLOADED,
140 SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
141 SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
143 SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE,
144 SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE,
145 SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
146 SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
147 SWITCHDEV_VXLAN_FDB_OFFLOADED,
150 struct switchdev_notifier_info {
151 struct net_device *dev;
154 struct switchdev_notifier_fdb_info {
155 struct switchdev_notifier_info info; /* must be first */
156 const unsigned char *addr;
162 struct switchdev_notifier_port_obj_info {
163 struct switchdev_notifier_info info; /* must be first */
164 const struct switchdev_obj *obj;
165 struct switchdev_trans *trans;
169 static inline struct net_device *
170 switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
175 #ifdef CONFIG_NET_SWITCHDEV
177 void switchdev_deferred_process(void);
178 int switchdev_port_attr_get(struct net_device *dev,
179 struct switchdev_attr *attr);
180 int switchdev_port_attr_set(struct net_device *dev,
181 const struct switchdev_attr *attr);
182 int switchdev_port_obj_add(struct net_device *dev,
183 const struct switchdev_obj *obj);
184 int switchdev_port_obj_del(struct net_device *dev,
185 const struct switchdev_obj *obj);
187 int register_switchdev_notifier(struct notifier_block *nb);
188 int unregister_switchdev_notifier(struct notifier_block *nb);
189 int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
190 struct switchdev_notifier_info *info);
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,
195 struct switchdev_notifier_info *info);
197 void switchdev_port_fwd_mark_set(struct net_device *dev,
198 struct net_device *group_dev,
201 bool switchdev_port_same_parent_id(struct net_device *a,
202 struct net_device *b);
204 int switchdev_handle_port_obj_add(struct net_device *dev,
205 struct switchdev_notifier_port_obj_info *port_obj_info,
206 bool (*check_cb)(const struct net_device *dev),
207 int (*add_cb)(struct net_device *dev,
208 const struct switchdev_obj *obj,
209 struct switchdev_trans *trans));
210 int switchdev_handle_port_obj_del(struct net_device *dev,
211 struct switchdev_notifier_port_obj_info *port_obj_info,
212 bool (*check_cb)(const struct net_device *dev),
213 int (*del_cb)(struct net_device *dev,
214 const struct switchdev_obj *obj));
216 #define SWITCHDEV_SET_OPS(netdev, ops) ((netdev)->switchdev_ops = (ops))
219 static inline void switchdev_deferred_process(void)
223 static inline int switchdev_port_attr_get(struct net_device *dev,
224 struct switchdev_attr *attr)
229 static inline int switchdev_port_attr_set(struct net_device *dev,
230 const struct switchdev_attr *attr)
235 static inline int switchdev_port_obj_add(struct net_device *dev,
236 const struct switchdev_obj *obj)
241 static inline int switchdev_port_obj_del(struct net_device *dev,
242 const struct switchdev_obj *obj)
247 static inline int register_switchdev_notifier(struct notifier_block *nb)
252 static inline int unregister_switchdev_notifier(struct notifier_block *nb)
257 static inline int call_switchdev_notifiers(unsigned long val,
258 struct net_device *dev,
259 struct switchdev_notifier_info *info)
265 register_switchdev_blocking_notifier(struct notifier_block *nb)
271 unregister_switchdev_blocking_notifier(struct notifier_block *nb)
277 call_switchdev_blocking_notifiers(unsigned long val,
278 struct net_device *dev,
279 struct switchdev_notifier_info *info)
284 static inline bool switchdev_port_same_parent_id(struct net_device *a,
285 struct net_device *b)
291 switchdev_handle_port_obj_add(struct net_device *dev,
292 struct switchdev_notifier_port_obj_info *port_obj_info,
293 bool (*check_cb)(const struct net_device *dev),
294 int (*add_cb)(struct net_device *dev,
295 const struct switchdev_obj *obj,
296 struct switchdev_trans *trans))
302 switchdev_handle_port_obj_del(struct net_device *dev,
303 struct switchdev_notifier_port_obj_info *port_obj_info,
304 bool (*check_cb)(const struct net_device *dev),
305 int (*del_cb)(struct net_device *dev,
306 const struct switchdev_obj *obj))
311 #define SWITCHDEV_SET_OPS(netdev, ops) do {} while (0)
315 #endif /* _LINUX_SWITCHDEV_H_ */