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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 Pirko850d0cb2015-10-14 19:40:51 +020017#include <net/ip_fib.h>
Jiri Pirko03bf0c22015-01-15 23:49:36 +010018
Scott Feldman30943332015-05-10 09:47:48 -070019#define SWITCHDEV_F_NO_RECURSE BIT(0)
Scott Feldman464314e2015-10-08 19:23:18 -070020#define SWITCHDEV_F_SKIP_EOPNOTSUPP BIT(1)
Jiri Pirko0bc05d52015-10-14 19:40:50 +020021#define SWITCHDEV_F_DEFER BIT(2)
Scott Feldman30943332015-05-10 09:47:48 -070022
Jiri Pirko7ea6eb32015-09-24 10:02:41 +020023struct switchdev_trans_item {
24 struct list_head list;
25 void *data;
26 void (*destructor)(const void *data);
27};
28
29struct switchdev_trans {
30 struct list_head item_list;
Jiri Pirkof623ab72015-09-24 10:02:49 +020031 bool ph_prepare;
Jiri Pirko7ea6eb32015-09-24 10:02:41 +020032};
33
Jiri Pirko8bdb4272015-09-24 10:02:43 +020034static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
35{
Jiri Pirkof623ab72015-09-24 10:02:49 +020036 return trans && trans->ph_prepare;
Jiri Pirko8bdb4272015-09-24 10:02:43 +020037}
38
39static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
40{
Jiri Pirkof623ab72015-09-24 10:02:49 +020041 return trans && !trans->ph_prepare;
Jiri Pirko8bdb4272015-09-24 10:02:43 +020042}
43
Scott Feldman30943332015-05-10 09:47:48 -070044enum switchdev_attr_id {
Jiri Pirko1f868392015-10-01 11:03:42 +020045 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,
Arkadi Sharshevskydc0ecabd2017-06-08 08:44:10 +020049 SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
Nogah Frankel6d549642017-02-09 14:54:42 +010050 SWITCHDEV_ATTR_ID_PORT_MROUTER,
Scott Feldmanf55ac582015-10-08 19:23:17 -070051 SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
Elad Raz81435c32016-01-06 13:01:05 +010052 SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING,
Nogah Frankel147c1e92017-02-09 14:54:40 +010053 SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED,
Scott Feldman30943332015-05-10 09:47:48 -070054};
55
56struct switchdev_attr {
Ido Schimmel6ff64f62015-12-15 16:03:35 +010057 struct net_device *orig_dev;
Scott Feldman30943332015-05-10 09:47:48 -070058 enum switchdev_attr_id id;
Scott Feldman30943332015-05-10 09:47:48 -070059 u32 flags;
Elad Raz7ceb2af2016-04-21 12:52:43 +020060 void *complete_priv;
61 void (*complete)(struct net_device *dev, int err, void *priv);
Scott Feldmanf8e20a92015-05-10 09:47:49 -070062 union {
63 struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
Scott Feldman35636062015-05-10 09:47:51 -070064 u8 stp_state; /* PORT_STP_STATE */
Scott Feldman6004c862015-05-10 09:47:55 -070065 unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */
Arkadi Sharshevskydc0ecabd2017-06-08 08:44:10 +020066 unsigned long brport_flags_support; /* PORT_BRIDGE_FLAGS_SUPPORT */
Nogah Frankel6d549642017-02-09 14:54:42 +010067 bool mrouter; /* PORT_MROUTER */
Vivien Dideloteabfdda2016-07-18 15:02:06 -040068 clock_t ageing_time; /* BRIDGE_AGEING_TIME */
Elad Raz81435c32016-01-06 13:01:05 +010069 bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */
Nogah Frankel147c1e92017-02-09 14:54:40 +010070 bool mc_disabled; /* MC_DISABLED */
Scott Feldman42275bd2015-05-13 11:16:50 -070071 } u;
Scott Feldman30943332015-05-10 09:47:48 -070072};
73
Scott Feldman491d0f12015-05-10 09:47:52 -070074enum switchdev_obj_id {
Jiri Pirko57d80832015-10-01 11:03:41 +020075 SWITCHDEV_OBJ_ID_UNDEFINED,
76 SWITCHDEV_OBJ_ID_PORT_VLAN,
Elad Raz4d41e1252016-01-10 21:06:22 +010077 SWITCHDEV_OBJ_ID_PORT_MDB,
Scott Feldman491d0f12015-05-10 09:47:52 -070078};
79
Jiri Pirko648b4a92015-10-01 11:03:45 +020080struct switchdev_obj {
Ido Schimmel6ff64f62015-12-15 16:03:35 +010081 struct net_device *orig_dev;
Jiri Pirko9e8f4a52015-10-01 11:03:46 +020082 enum switchdev_obj_id id;
Jiri Pirko4d429c52015-10-14 19:40:52 +020083 u32 flags;
Elad Raz7ceb2af2016-04-21 12:52:43 +020084 void *complete_priv;
85 void (*complete)(struct net_device *dev, int err, void *priv);
Jiri Pirko648b4a92015-10-01 11:03:45 +020086};
87
Jiri Pirko57d80832015-10-01 11:03:41 +020088/* SWITCHDEV_OBJ_ID_PORT_VLAN */
Jiri Pirko8f24f302015-10-01 11:03:43 +020089struct switchdev_obj_port_vlan {
Jiri Pirko648b4a92015-10-01 11:03:45 +020090 struct switchdev_obj obj;
Vivien Didelot44bbcf52015-09-29 12:07:18 -040091 u16 flags;
92 u16 vid_begin;
93 u16 vid_end;
94};
95
Jiri Pirko648b4a92015-10-01 11:03:45 +020096#define SWITCHDEV_OBJ_PORT_VLAN(obj) \
97 container_of(obj, struct switchdev_obj_port_vlan, obj)
98
Elad Raz4d41e1252016-01-10 21:06:22 +010099/* SWITCHDEV_OBJ_ID_PORT_MDB */
100struct switchdev_obj_port_mdb {
101 struct switchdev_obj obj;
102 unsigned char addr[ETH_ALEN];
103 u16 vid;
104};
105
106#define SWITCHDEV_OBJ_PORT_MDB(obj) \
107 container_of(obj, struct switchdev_obj_port_mdb, obj)
108
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200109void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
110 void *data, void (*destructor)(void const *),
111 struct switchdev_trans_item *tritem);
112void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
113
Jiri Pirko648b4a92015-10-01 11:03:45 +0200114typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
115
Scott Feldman41706042015-03-15 21:07:14 -0700116/**
117 * struct switchdev_ops - switchdev operations
118 *
Scott Feldman30943332015-05-10 09:47:48 -0700119 * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
120 *
121 * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
122 *
Vivien Didelot44bbcf52015-09-29 12:07:18 -0400123 * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*).
Scott Feldman491d0f12015-05-10 09:47:52 -0700124 *
Vivien Didelot44bbcf52015-09-29 12:07:18 -0400125 * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*).
Scott Feldman41706042015-03-15 21:07:14 -0700126 */
Jiri Pirko9d47c0a2015-05-10 09:47:47 -0700127struct switchdev_ops {
Scott Feldman30943332015-05-10 09:47:48 -0700128 int (*switchdev_port_attr_get)(struct net_device *dev,
129 struct switchdev_attr *attr);
130 int (*switchdev_port_attr_set)(struct net_device *dev,
Jiri Pirkof7fadf32015-10-14 19:40:49 +0200131 const struct switchdev_attr *attr,
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200132 struct switchdev_trans *trans);
Scott Feldman491d0f12015-05-10 09:47:52 -0700133 int (*switchdev_port_obj_add)(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200134 const struct switchdev_obj *obj,
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200135 struct switchdev_trans *trans);
Scott Feldman491d0f12015-05-10 09:47:52 -0700136 int (*switchdev_port_obj_del)(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200137 const struct switchdev_obj *obj);
Scott Feldman41706042015-03-15 21:07:14 -0700138};
139
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700140enum switchdev_notifier_type {
Arkadi Sharshevsky6b26b512017-06-08 08:44:14 +0200141 SWITCHDEV_FDB_ADD_TO_BRIDGE = 1,
142 SWITCHDEV_FDB_DEL_TO_BRIDGE,
143 SWITCHDEV_FDB_ADD_TO_DEVICE,
144 SWITCHDEV_FDB_DEL_TO_DEVICE,
Arkadi Sharshevsky9fe8bce2017-06-08 08:44:15 +0200145 SWITCHDEV_FDB_OFFLOADED,
Jiri Pirko3aeb6612015-01-15 23:49:37 +0100146};
147
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700148struct switchdev_notifier_info {
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100149 struct net_device *dev;
150};
151
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700152struct switchdev_notifier_fdb_info {
153 struct switchdev_notifier_info info; /* must be first */
Jiri Pirko3aeb6612015-01-15 23:49:37 +0100154 const unsigned char *addr;
155 u16 vid;
156};
157
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100158static inline struct net_device *
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700159switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
Jiri Pirko03bf0c22015-01-15 23:49:36 +0100160{
161 return info->dev;
162}
Jiri Pirko007f7902014-11-28 14:34:17 +0100163
164#ifdef CONFIG_NET_SWITCHDEV
165
Jiri Pirko793f4012015-10-14 19:40:48 +0200166void switchdev_deferred_process(void);
Scott Feldman30943332015-05-10 09:47:48 -0700167int switchdev_port_attr_get(struct net_device *dev,
168 struct switchdev_attr *attr);
169int switchdev_port_attr_set(struct net_device *dev,
Jiri Pirkof7fadf32015-10-14 19:40:49 +0200170 const struct switchdev_attr *attr);
Jiri Pirko9e8f4a52015-10-01 11:03:46 +0200171int switchdev_port_obj_add(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200172 const struct switchdev_obj *obj);
Jiri Pirko9e8f4a52015-10-01 11:03:46 +0200173int switchdev_port_obj_del(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200174 const struct switchdev_obj *obj);
Jiri Pirkoebb9a032015-05-10 09:47:46 -0700175int register_switchdev_notifier(struct notifier_block *nb);
176int unregister_switchdev_notifier(struct notifier_block *nb);
177int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
178 struct switchdev_notifier_info *info);
Scott Feldman1a3b2ec2015-07-18 18:24:50 -0700179void switchdev_port_fwd_mark_set(struct net_device *dev,
180 struct net_device *group_dev,
181 bool joining);
Scott Feldman5e8d9042015-03-05 21:21:15 -0800182
Or Gerlitz84388842016-07-14 10:32:43 +0300183bool switchdev_port_same_parent_id(struct net_device *a,
184 struct net_device *b);
Simon Hormand643a752017-06-29 22:08:11 +0200185
186#define SWITCHDEV_SET_OPS(netdev, ops) ((netdev)->switchdev_ops = (ops))
Jiri Pirko007f7902014-11-28 14:34:17 +0100187#else
188
Jiri Pirko793f4012015-10-14 19:40:48 +0200189static inline void switchdev_deferred_process(void)
190{
191}
192
Scott Feldman30943332015-05-10 09:47:48 -0700193static inline int switchdev_port_attr_get(struct net_device *dev,
194 struct switchdev_attr *attr)
195{
196 return -EOPNOTSUPP;
197}
198
199static inline int switchdev_port_attr_set(struct net_device *dev,
Jiri Pirkof7fadf32015-10-14 19:40:49 +0200200 const struct switchdev_attr *attr)
Scott Feldman30943332015-05-10 09:47:48 -0700201{
202 return -EOPNOTSUPP;
203}
204
Scott Feldman491d0f12015-05-10 09:47:52 -0700205static inline int switchdev_port_obj_add(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200206 const struct switchdev_obj *obj)
Scott Feldman491d0f12015-05-10 09:47:52 -0700207{
208 return -EOPNOTSUPP;
209}
210
211static inline int switchdev_port_obj_del(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200212 const struct switchdev_obj *obj)
Scott Feldman491d0f12015-05-10 09:47:52 -0700213{
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
Or Gerlitz84388842016-07-14 10:32:43 +0300234static inline bool switchdev_port_same_parent_id(struct net_device *a,
235 struct net_device *b)
236{
237 return false;
238}
239
Simon Hormand643a752017-06-29 22:08:11 +0200240#define SWITCHDEV_SET_OPS(netdev, ops) do {} while (0)
241
Jiri Pirko007f7902014-11-28 14:34:17 +0100242#endif
243
244#endif /* _LINUX_SWITCHDEV_H_ */