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_BRIDGE_AGEING_TIME,
50 SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
53 struct switchdev_attr {
54 struct net_device *orig_dev;
55 enum switchdev_attr_id id;
58 void (*complete)(struct net_device *dev, int err, void *priv);
60 struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
61 u8 stp_state; /* PORT_STP_STATE */
62 unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */
63 clock_t ageing_time; /* BRIDGE_AGEING_TIME */
64 bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */
68 enum switchdev_obj_id {
69 SWITCHDEV_OBJ_ID_UNDEFINED,
70 SWITCHDEV_OBJ_ID_PORT_VLAN,
71 SWITCHDEV_OBJ_ID_PORT_FDB,
72 SWITCHDEV_OBJ_ID_PORT_MDB,
75 struct switchdev_obj {
76 struct net_device *orig_dev;
77 enum switchdev_obj_id id;
80 void (*complete)(struct net_device *dev, int err, void *priv);
83 /* SWITCHDEV_OBJ_ID_PORT_VLAN */
84 struct switchdev_obj_port_vlan {
85 struct switchdev_obj obj;
91 #define SWITCHDEV_OBJ_PORT_VLAN(obj) \
92 container_of(obj, struct switchdev_obj_port_vlan, obj)
94 /* SWITCHDEV_OBJ_ID_PORT_FDB */
95 struct switchdev_obj_port_fdb {
96 struct switchdev_obj obj;
97 unsigned char addr[ETH_ALEN];
102 #define SWITCHDEV_OBJ_PORT_FDB(obj) \
103 container_of(obj, struct switchdev_obj_port_fdb, obj)
105 /* SWITCHDEV_OBJ_ID_PORT_MDB */
106 struct switchdev_obj_port_mdb {
107 struct switchdev_obj obj;
108 unsigned char addr[ETH_ALEN];
112 #define SWITCHDEV_OBJ_PORT_MDB(obj) \
113 container_of(obj, struct switchdev_obj_port_mdb, obj)
115 void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
116 void *data, void (*destructor)(void const *),
117 struct switchdev_trans_item *tritem);
118 void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
120 typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
123 * struct switchdev_ops - switchdev operations
125 * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
127 * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
129 * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*).
131 * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*).
133 * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj_*).
135 struct switchdev_ops {
136 int (*switchdev_port_attr_get)(struct net_device *dev,
137 struct switchdev_attr *attr);
138 int (*switchdev_port_attr_set)(struct net_device *dev,
139 const struct switchdev_attr *attr,
140 struct switchdev_trans *trans);
141 int (*switchdev_port_obj_add)(struct net_device *dev,
142 const struct switchdev_obj *obj,
143 struct switchdev_trans *trans);
144 int (*switchdev_port_obj_del)(struct net_device *dev,
145 const struct switchdev_obj *obj);
146 int (*switchdev_port_obj_dump)(struct net_device *dev,
147 struct switchdev_obj *obj,
148 switchdev_obj_dump_cb_t *cb);
151 enum switchdev_notifier_type {
152 SWITCHDEV_FDB_ADD = 1,
156 struct switchdev_notifier_info {
157 struct net_device *dev;
160 struct switchdev_notifier_fdb_info {
161 struct switchdev_notifier_info info; /* must be first */
162 const unsigned char *addr;
166 static inline struct net_device *
167 switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
172 #ifdef CONFIG_NET_SWITCHDEV
174 void switchdev_deferred_process(void);
175 int switchdev_port_attr_get(struct net_device *dev,
176 struct switchdev_attr *attr);
177 int switchdev_port_attr_set(struct net_device *dev,
178 const struct switchdev_attr *attr);
179 int switchdev_port_obj_add(struct net_device *dev,
180 const struct switchdev_obj *obj);
181 int switchdev_port_obj_del(struct net_device *dev,
182 const struct switchdev_obj *obj);
183 int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj,
184 switchdev_obj_dump_cb_t *cb);
185 int register_switchdev_notifier(struct notifier_block *nb);
186 int unregister_switchdev_notifier(struct notifier_block *nb);
187 int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
188 struct switchdev_notifier_info *info);
189 int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
190 struct net_device *dev, u32 filter_mask,
192 int switchdev_port_bridge_setlink(struct net_device *dev,
193 struct nlmsghdr *nlh, u16 flags);
194 int switchdev_port_bridge_dellink(struct net_device *dev,
195 struct nlmsghdr *nlh, u16 flags);
196 int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
197 struct net_device *dev, const unsigned char *addr,
198 u16 vid, u16 nlm_flags);
199 int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
200 struct net_device *dev, const unsigned char *addr,
202 int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
203 struct net_device *dev,
204 struct net_device *filter_dev, int *idx);
205 void switchdev_port_fwd_mark_set(struct net_device *dev,
206 struct net_device *group_dev,
209 bool switchdev_port_same_parent_id(struct net_device *a,
210 struct net_device *b);
213 static inline void switchdev_deferred_process(void)
217 static inline int switchdev_port_attr_get(struct net_device *dev,
218 struct switchdev_attr *attr)
223 static inline int switchdev_port_attr_set(struct net_device *dev,
224 const struct switchdev_attr *attr)
229 static inline int switchdev_port_obj_add(struct net_device *dev,
230 const struct switchdev_obj *obj)
235 static inline int switchdev_port_obj_del(struct net_device *dev,
236 const struct switchdev_obj *obj)
241 static inline int switchdev_port_obj_dump(struct net_device *dev,
242 const struct switchdev_obj *obj,
243 switchdev_obj_dump_cb_t *cb)
248 static inline int register_switchdev_notifier(struct notifier_block *nb)
253 static inline int unregister_switchdev_notifier(struct notifier_block *nb)
258 static inline int call_switchdev_notifiers(unsigned long val,
259 struct net_device *dev,
260 struct switchdev_notifier_info *info)
265 static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid,
266 u32 seq, struct net_device *dev,
267 u32 filter_mask, int nlflags)
272 static inline int switchdev_port_bridge_setlink(struct net_device *dev,
273 struct nlmsghdr *nlh,
279 static inline int switchdev_port_bridge_dellink(struct net_device *dev,
280 struct nlmsghdr *nlh,
286 static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
287 struct net_device *dev,
288 const unsigned char *addr,
289 u16 vid, u16 nlm_flags)
294 static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
295 struct net_device *dev,
296 const unsigned char *addr, u16 vid)
301 static inline int switchdev_port_fdb_dump(struct sk_buff *skb,
302 struct netlink_callback *cb,
303 struct net_device *dev,
304 struct net_device *filter_dev,
310 static inline bool switchdev_port_same_parent_id(struct net_device *a,
311 struct net_device *b)
318 #endif /* _LINUX_SWITCHDEV_H_ */