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007f790c JP |
1 | /* |
2 | * include/net/switchdev.h - Switch device API | |
3 | * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us> | |
f8f21471 | 4 | * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com> |
007f790c JP |
5 | * |
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> | |
03bf0c28 JP |
15 | #include <linux/notifier.h> |
16 | ||
3094333d SF |
17 | #define SWITCHDEV_F_NO_RECURSE BIT(0) |
18 | ||
19 | enum switchdev_trans { | |
20 | SWITCHDEV_TRANS_NONE, | |
21 | SWITCHDEV_TRANS_PREPARE, | |
22 | SWITCHDEV_TRANS_ABORT, | |
23 | SWITCHDEV_TRANS_COMMIT, | |
24 | }; | |
25 | ||
26 | enum switchdev_attr_id { | |
27 | SWITCHDEV_ATTR_UNDEFINED, | |
f8e20a9f | 28 | SWITCHDEV_ATTR_PORT_PARENT_ID, |
35636062 | 29 | SWITCHDEV_ATTR_PORT_STP_STATE, |
6004c867 | 30 | SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS, |
3094333d SF |
31 | }; |
32 | ||
33 | struct switchdev_attr { | |
34 | enum switchdev_attr_id id; | |
35 | enum switchdev_trans trans; | |
36 | u32 flags; | |
f8e20a9f SF |
37 | union { |
38 | struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ | |
35636062 | 39 | u8 stp_state; /* PORT_STP_STATE */ |
6004c867 | 40 | unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ |
f8e20a9f | 41 | }; |
3094333d SF |
42 | }; |
43 | ||
4170604f SF |
44 | struct fib_info; |
45 | ||
491d0f15 SF |
46 | enum switchdev_obj_id { |
47 | SWITCHDEV_OBJ_UNDEFINED, | |
6fc3016d | 48 | SWITCHDEV_OBJ_PORT_VLAN, |
491d0f15 SF |
49 | }; |
50 | ||
51 | struct switchdev_obj { | |
52 | enum switchdev_obj_id id; | |
53 | enum switchdev_trans trans; | |
6fc3016d SF |
54 | union { |
55 | struct switchdev_obj_vlan { /* PORT_VLAN */ | |
56 | u16 flags; | |
57 | u16 vid_start; | |
58 | u16 vid_end; | |
59 | } vlan; | |
60 | }; | |
491d0f15 SF |
61 | }; |
62 | ||
4170604f SF |
63 | /** |
64 | * struct switchdev_ops - switchdev operations | |
65 | * | |
3094333d SF |
66 | * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). |
67 | * | |
68 | * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). | |
69 | * | |
491d0f15 SF |
70 | * @switchdev_port_obj_add: Add an object to port (see switchdev_obj). |
71 | * | |
72 | * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj). | |
73 | * | |
9d47c0a2 | 74 | * @switchdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device. |
4170604f | 75 | * |
9d47c0a2 | 76 | * @switchdev_fib_ipv4_del: Called to delete IPv4 route from switch device. |
4170604f | 77 | */ |
9d47c0a2 | 78 | struct switchdev_ops { |
3094333d SF |
79 | int (*switchdev_port_attr_get)(struct net_device *dev, |
80 | struct switchdev_attr *attr); | |
81 | int (*switchdev_port_attr_set)(struct net_device *dev, | |
82 | struct switchdev_attr *attr); | |
491d0f15 SF |
83 | int (*switchdev_port_obj_add)(struct net_device *dev, |
84 | struct switchdev_obj *obj); | |
85 | int (*switchdev_port_obj_del)(struct net_device *dev, | |
86 | struct switchdev_obj *obj); | |
9d47c0a2 JP |
87 | int (*switchdev_fib_ipv4_add)(struct net_device *dev, __be32 dst, |
88 | int dst_len, struct fib_info *fi, | |
89 | u8 tos, u8 type, u32 nlflags, | |
90 | u32 tb_id); | |
91 | int (*switchdev_fib_ipv4_del)(struct net_device *dev, __be32 dst, | |
92 | int dst_len, struct fib_info *fi, | |
93 | u8 tos, u8 type, u32 tb_id); | |
4170604f SF |
94 | }; |
95 | ||
ebb9a03a JP |
96 | enum switchdev_notifier_type { |
97 | SWITCHDEV_FDB_ADD = 1, | |
98 | SWITCHDEV_FDB_DEL, | |
3aeb6617 JP |
99 | }; |
100 | ||
ebb9a03a | 101 | struct switchdev_notifier_info { |
03bf0c28 JP |
102 | struct net_device *dev; |
103 | }; | |
104 | ||
ebb9a03a JP |
105 | struct switchdev_notifier_fdb_info { |
106 | struct switchdev_notifier_info info; /* must be first */ | |
3aeb6617 JP |
107 | const unsigned char *addr; |
108 | u16 vid; | |
109 | }; | |
110 | ||
03bf0c28 | 111 | static inline struct net_device * |
ebb9a03a | 112 | switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) |
03bf0c28 JP |
113 | { |
114 | return info->dev; | |
115 | } | |
007f790c JP |
116 | |
117 | #ifdef CONFIG_NET_SWITCHDEV | |
118 | ||
3094333d SF |
119 | int switchdev_port_attr_get(struct net_device *dev, |
120 | struct switchdev_attr *attr); | |
121 | int switchdev_port_attr_set(struct net_device *dev, | |
122 | struct switchdev_attr *attr); | |
491d0f15 SF |
123 | int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj); |
124 | int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj); | |
ebb9a03a JP |
125 | int register_switchdev_notifier(struct notifier_block *nb); |
126 | int unregister_switchdev_notifier(struct notifier_block *nb); | |
127 | int call_switchdev_notifiers(unsigned long val, struct net_device *dev, | |
128 | struct switchdev_notifier_info *info); | |
129 | int switchdev_port_bridge_setlink(struct net_device *dev, | |
130 | struct nlmsghdr *nlh, u16 flags); | |
131 | int switchdev_port_bridge_dellink(struct net_device *dev, | |
132 | struct nlmsghdr *nlh, u16 flags); | |
ebb9a03a JP |
133 | int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, |
134 | u8 tos, u8 type, u32 nlflags, u32 tb_id); | |
135 | int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, | |
136 | u8 tos, u8 type, u32 tb_id); | |
137 | void switchdev_fib_ipv4_abort(struct fib_info *fi); | |
5e8d9049 | 138 | |
007f790c JP |
139 | #else |
140 | ||
3094333d SF |
141 | static inline int switchdev_port_attr_get(struct net_device *dev, |
142 | struct switchdev_attr *attr) | |
143 | { | |
144 | return -EOPNOTSUPP; | |
145 | } | |
146 | ||
147 | static inline int switchdev_port_attr_set(struct net_device *dev, | |
148 | struct switchdev_attr *attr) | |
149 | { | |
150 | return -EOPNOTSUPP; | |
151 | } | |
152 | ||
491d0f15 SF |
153 | static inline int switchdev_port_obj_add(struct net_device *dev, |
154 | struct switchdev_obj *obj) | |
155 | { | |
156 | return -EOPNOTSUPP; | |
157 | } | |
158 | ||
159 | static inline int switchdev_port_obj_del(struct net_device *dev, | |
160 | struct switchdev_obj *obj) | |
161 | { | |
162 | return -EOPNOTSUPP; | |
163 | } | |
164 | ||
ebb9a03a | 165 | static inline int register_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
166 | { |
167 | return 0; | |
168 | } | |
169 | ||
ebb9a03a | 170 | static inline int unregister_switchdev_notifier(struct notifier_block *nb) |
03bf0c28 JP |
171 | { |
172 | return 0; | |
173 | } | |
174 | ||
ebb9a03a JP |
175 | static inline int call_switchdev_notifiers(unsigned long val, |
176 | struct net_device *dev, | |
177 | struct switchdev_notifier_info *info) | |
03bf0c28 JP |
178 | { |
179 | return NOTIFY_DONE; | |
180 | } | |
181 | ||
ebb9a03a JP |
182 | static inline int switchdev_port_bridge_setlink(struct net_device *dev, |
183 | struct nlmsghdr *nlh, | |
184 | u16 flags) | |
8a44dbb2 RP |
185 | { |
186 | return -EOPNOTSUPP; | |
187 | } | |
188 | ||
ebb9a03a JP |
189 | static inline int switchdev_port_bridge_dellink(struct net_device *dev, |
190 | struct nlmsghdr *nlh, | |
191 | u16 flags) | |
8a44dbb2 RP |
192 | { |
193 | return -EOPNOTSUPP; | |
194 | } | |
195 | ||
ebb9a03a JP |
196 | static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len, |
197 | struct fib_info *fi, | |
198 | u8 tos, u8 type, | |
199 | u32 nlflags, u32 tb_id) | |
5e8d9049 SF |
200 | { |
201 | return 0; | |
202 | } | |
203 | ||
ebb9a03a JP |
204 | static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len, |
205 | struct fib_info *fi, | |
206 | u8 tos, u8 type, u32 tb_id) | |
5e8d9049 SF |
207 | { |
208 | return 0; | |
209 | } | |
210 | ||
ebb9a03a | 211 | static inline void switchdev_fib_ipv4_abort(struct fib_info *fi) |
8e05fd71 SF |
212 | { |
213 | } | |
214 | ||
007f790c JP |
215 | #endif |
216 | ||
217 | #endif /* _LINUX_SWITCHDEV_H_ */ |