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Jiri Pirko007f7902014-11-28 14:34:17 +01001/*
2 * include/net/switchdev.h - Switch device API
Jiri Pirko7ea6eb32015-09-24 10:02:41 +02003 * Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
Scott Feldmanf8f21472015-03-09 13:59:09 -07004 * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
Jiri Pirko007f7902014-11-28 14:34:17 +01005 *
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>
Jiri Pirko03bf0c22015-01-15 23:49:36 +010015#include <linux/notifier.h>
Jiri Pirko7ea6eb32015-09-24 10:02:41 +020016#include <linux/list.h>
Jiri Pirko03bf0c22015-01-15 23:49:36 +010017
Scott Feldman30943332015-05-10 09:47:48 -070018#define SWITCHDEV_F_NO_RECURSE BIT(0)
19
Jiri Pirko7ea6eb32015-09-24 10:02:41 +020020struct switchdev_trans_item {
21 struct list_head list;
22 void *data;
23 void (*destructor)(const void *data);
24};
25
26struct switchdev_trans {
27 struct list_head item_list;
Jiri Pirkof623ab72015-09-24 10:02:49 +020028 bool ph_prepare;
Jiri Pirko7ea6eb32015-09-24 10:02:41 +020029};
30
Jiri Pirko8bdb4272015-09-24 10:02:43 +020031static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
32{
Jiri Pirkof623ab72015-09-24 10:02:49 +020033 return trans && trans->ph_prepare;
Jiri Pirko8bdb4272015-09-24 10:02:43 +020034}
35
36static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
37{
Jiri Pirkof623ab72015-09-24 10:02:49 +020038 return trans && !trans->ph_prepare;
Jiri Pirko8bdb4272015-09-24 10:02:43 +020039}
40
Scott Feldman30943332015-05-10 09:47:48 -070041enum switchdev_attr_id {
42 SWITCHDEV_ATTR_UNDEFINED,
Scott Feldmanf8e20a92015-05-10 09:47:49 -070043 SWITCHDEV_ATTR_PORT_PARENT_ID,
Scott Feldman35636062015-05-10 09:47:51 -070044 SWITCHDEV_ATTR_PORT_STP_STATE,
Scott Feldman6004c862015-05-10 09:47:55 -070045 SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS,
Scott Feldman30943332015-05-10 09:47:48 -070046};
47
48struct switchdev_attr {
49 enum switchdev_attr_id id;
Scott Feldman30943332015-05-10 09:47:48 -070050 u32 flags;
Scott Feldmanf8e20a92015-05-10 09:47:49 -070051 union {
52 struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
Scott Feldman35636062015-05-10 09:47:51 -070053 u8 stp_state; /* PORT_STP_STATE */
Scott Feldman6004c862015-05-10 09:47:55 -070054 unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */
Scott Feldman42275bd2015-05-13 11:16:50 -070055 } u;
Scott Feldman30943332015-05-10 09:47:48 -070056};
57
Scott Feldman41706042015-03-15 21:07:14 -070058struct fib_info;
59
Scott Feldman491d0f12015-05-10 09:47:52 -070060enum switchdev_obj_id {
61 SWITCHDEV_OBJ_UNDEFINED,
Scott Feldman6fc30162015-05-10 09:47:53 -070062 SWITCHDEV_OBJ_PORT_VLAN,
Scott Feldman58c2cb12015-05-10 09:48:06 -070063 SWITCHDEV_OBJ_IPV4_FIB,
Samudrala, Sridhar45d41222015-05-13 21:55:43 -070064 SWITCHDEV_OBJ_PORT_FDB,
Scott Feldman491d0f12015-05-10 09:47:52 -070065};
66
67struct switchdev_obj {
68 enum switchdev_obj_id id;
Samudrala, Sridhar45d41222015-05-13 21:55:43 -070069 int (*cb)(struct net_device *dev, struct switchdev_obj *obj);
Scott Feldman6fc30162015-05-10 09:47:53 -070070 union {
Scott Feldman5eb764e2015-05-12 23:03:53 -070071 struct switchdev_obj_vlan { /* PORT_VLAN */
Scott Feldman6fc30162015-05-10 09:47:53 -070072 u16 flags;
Scott Feldman3e3a78b2015-06-22 00:27:16 -070073 u16 vid_begin;
Scott Feldman6fc30162015-05-10 09:47:53 -070074 u16 vid_end;
75 } vlan;
Scott Feldman58c2cb12015-05-10 09:48:06 -070076 struct switchdev_obj_ipv4_fib { /* IPV4_FIB */
77 u32 dst;
78 int dst_len;
79 struct fib_info *fi;
80 u8 tos;
81 u8 type;
82 u32 nlflags;
83 u32 tb_id;
84 } ipv4_fib;
Samudrala, Sridhar45d41222015-05-13 21:55:43 -070085 struct switchdev_obj_fdb { /* PORT_FDB */
David S. Millercdf09692015-08-11 12:00:37 -070086 const unsigned char *addr;
Samudrala, Sridhar45d41222015-05-13 21:55:43 -070087 u16 vid;
Vivien Didelotce80e7b2015-08-10 09:09:52 -040088 u16 ndm_state;
Samudrala, Sridhar45d41222015-05-13 21:55:43 -070089 } fdb;
Scott Feldman42275bd2015-05-13 11:16:50 -070090 } u;
Scott Feldman491d0f12015-05-10 09:47:52 -070091};
92
Jiri Pirko7ea6eb32015-09-24 10:02:41 +020093void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
94 void *data, void (*destructor)(void const *),
95 struct switchdev_trans_item *tritem);
96void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
97
Scott Feldman41706042015-03-15 21:07:14 -070098/**
99 * struct switchdev_ops - switchdev operations
100 *
Scott Feldman30943332015-05-10 09:47:48 -0700101 * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
102 *
103 * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
104 *
Scott Feldman491d0f12015-05-10 09:47:52 -0700105 * @switchdev_port_obj_add: Add an object to port (see switchdev_obj).
106 *
107 * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj).
Samudrala, Sridhar45d41222015-05-13 21:55:43 -0700108 *
109 * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj).
Scott Feldman41706042015-03-15 21:07:14 -0700110 */
Jiri Pirko9d47c0a2015-05-10 09:47:47 -0700111struct switchdev_ops {
Scott Feldman30943332015-05-10 09:47:48 -0700112 int (*switchdev_port_attr_get)(struct net_device *dev,
113 struct switchdev_attr *attr);
114 int (*switchdev_port_attr_set)(struct net_device *dev,
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200115 struct switchdev_attr *attr,
116 struct switchdev_trans *trans);
Scott Feldman491d0f12015-05-10 09:47:52 -0700117 int (*switchdev_port_obj_add)(struct net_device *dev,
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200118 struct switchdev_obj *obj,
119 struct switchdev_trans *trans);
Scott Feldman491d0f12015-05-10 09:47:52 -0700120 int (*switchdev_port_obj_del)(struct net_device *dev,
121 struct switchdev_obj *obj);
Samudrala, Sridhar45d41222015-05-13 21:55:43 -0700122 int (*switchdev_port_obj_dump)(struct net_device *dev,
123 struct switchdev_obj *obj);
Scott Feldman41706042015-03-15 21:07:14 -0700124};
125
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700126enum switchdev_notifier_type {
127 SWITCHDEV_FDB_ADD = 1,
128 SWITCHDEV_FDB_DEL,
Jiri Pirko3aeb6612015-01-15 23:49:37 +0100129};
130
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700131struct switchdev_notifier_info {
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100132 struct net_device *dev;
133};
134
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700135struct switchdev_notifier_fdb_info {
136 struct switchdev_notifier_info info; /* must be first */
Jiri Pirko3aeb6612015-01-15 23:49:37 +0100137 const unsigned char *addr;
138 u16 vid;
139};
140
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100141static inline struct net_device *
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700142switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100143{
144 return info->dev;
145}
Jiri Pirko007f7902014-11-28 14:34:17 +0100146
147#ifdef CONFIG_NET_SWITCHDEV
148
Scott Feldman30943332015-05-10 09:47:48 -0700149int switchdev_port_attr_get(struct net_device *dev,
150 struct switchdev_attr *attr);
151int switchdev_port_attr_set(struct net_device *dev,
152 struct switchdev_attr *attr);
Scott Feldman491d0f12015-05-10 09:47:52 -0700153int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj);
154int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj);
Samudrala, Sridhar45d41222015-05-13 21:55:43 -0700155int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj);
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700156int register_switchdev_notifier(struct notifier_block *nb);
157int unregister_switchdev_notifier(struct notifier_block *nb);
158int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
159 struct switchdev_notifier_info *info);
Scott Feldman8793d0a2015-05-10 09:48:04 -0700160int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
161 struct net_device *dev, u32 filter_mask,
162 int nlflags);
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700163int switchdev_port_bridge_setlink(struct net_device *dev,
164 struct nlmsghdr *nlh, u16 flags);
165int switchdev_port_bridge_dellink(struct net_device *dev,
166 struct nlmsghdr *nlh, u16 flags);
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700167int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
168 u8 tos, u8 type, u32 nlflags, u32 tb_id);
169int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
170 u8 tos, u8 type, u32 tb_id);
171void switchdev_fib_ipv4_abort(struct fib_info *fi);
Samudrala, Sridhar45d41222015-05-13 21:55:43 -0700172int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
173 struct net_device *dev, const unsigned char *addr,
174 u16 vid, u16 nlm_flags);
175int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
176 struct net_device *dev, const unsigned char *addr,
177 u16 vid);
178int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
179 struct net_device *dev,
180 struct net_device *filter_dev, int idx);
Scott Feldman1a3b2ec2015-07-18 18:24:50 -0700181void switchdev_port_fwd_mark_set(struct net_device *dev,
182 struct net_device *group_dev,
183 bool joining);
Scott Feldman5e8d9042015-03-05 21:21:15 -0800184
Jiri Pirko007f7902014-11-28 14:34:17 +0100185#else
186
Scott Feldman30943332015-05-10 09:47:48 -0700187static inline int switchdev_port_attr_get(struct net_device *dev,
188 struct switchdev_attr *attr)
189{
190 return -EOPNOTSUPP;
191}
192
193static inline int switchdev_port_attr_set(struct net_device *dev,
194 struct switchdev_attr *attr)
195{
196 return -EOPNOTSUPP;
197}
198
Scott Feldman491d0f12015-05-10 09:47:52 -0700199static inline int switchdev_port_obj_add(struct net_device *dev,
200 struct switchdev_obj *obj)
201{
202 return -EOPNOTSUPP;
203}
204
205static inline int switchdev_port_obj_del(struct net_device *dev,
206 struct switchdev_obj *obj)
207{
208 return -EOPNOTSUPP;
209}
210
Samudrala, Sridhar45d41222015-05-13 21:55:43 -0700211static inline int switchdev_port_obj_dump(struct net_device *dev,
212 struct switchdev_obj *obj)
213{
214 return -EOPNOTSUPP;
215}
216
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700217static inline int register_switchdev_notifier(struct notifier_block *nb)
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100218{
219 return 0;
220}
221
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700222static inline int unregister_switchdev_notifier(struct notifier_block *nb)
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100223{
224 return 0;
225}
226
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700227static inline int call_switchdev_notifiers(unsigned long val,
228 struct net_device *dev,
229 struct switchdev_notifier_info *info)
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100230{
231 return NOTIFY_DONE;
232}
233
Scott Feldman8793d0a2015-05-10 09:48:04 -0700234static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid,
235 u32 seq, struct net_device *dev,
236 u32 filter_mask, int nlflags)
237{
238 return -EOPNOTSUPP;
239}
240
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700241static inline int switchdev_port_bridge_setlink(struct net_device *dev,
242 struct nlmsghdr *nlh,
243 u16 flags)
Roopa Prabhu8a44dbb2015-01-29 22:40:13 -0800244{
245 return -EOPNOTSUPP;
246}
247
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700248static inline int switchdev_port_bridge_dellink(struct net_device *dev,
249 struct nlmsghdr *nlh,
250 u16 flags)
Roopa Prabhu8a44dbb2015-01-29 22:40:13 -0800251{
252 return -EOPNOTSUPP;
253}
254
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700255static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len,
256 struct fib_info *fi,
257 u8 tos, u8 type,
258 u32 nlflags, u32 tb_id)
Scott Feldman5e8d9042015-03-05 21:21:15 -0800259{
260 return 0;
261}
262
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700263static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len,
264 struct fib_info *fi,
265 u8 tos, u8 type, u32 tb_id)
Scott Feldman5e8d9042015-03-05 21:21:15 -0800266{
267 return 0;
268}
269
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700270static inline void switchdev_fib_ipv4_abort(struct fib_info *fi)
Scott Feldman8e05fd72015-03-05 21:21:19 -0800271{
272}
273
Samudrala, Sridhar45d41222015-05-13 21:55:43 -0700274static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
275 struct net_device *dev,
276 const unsigned char *addr,
277 u16 vid, u16 nlm_flags)
278{
279 return -EOPNOTSUPP;
280}
281
282static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
283 struct net_device *dev,
284 const unsigned char *addr, u16 vid)
285{
286 return -EOPNOTSUPP;
287}
288
289static inline int switchdev_port_fdb_dump(struct sk_buff *skb,
290 struct netlink_callback *cb,
291 struct net_device *dev,
292 struct net_device *filter_dev,
293 int idx)
294{
295 return -EOPNOTSUPP;
296}
297
Scott Feldman1a3b2ec2015-07-18 18:24:50 -0700298static inline void switchdev_port_fwd_mark_set(struct net_device *dev,
299 struct net_device *group_dev,
300 bool joining)
301{
302}
303
Jiri Pirko007f7902014-11-28 14:34:17 +0100304#endif
305
306#endif /* _LINUX_SWITCHDEV_H_ */