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1 | /* |
2 | * switch.h: Switch configuration API |
3 | * |
4 | * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org> |
5 | * |
6 | * This program is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public License |
8 | * as published by the Free Software Foundation; either version 2 |
9 | * of the License, or (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | */ |
16 | |
17 | #ifndef __LINUX_SWITCH_H |
18 | #define __LINUX_SWITCH_H |
19 | |
20 | #include <linux/types.h> |
21 | #include <linux/netdevice.h> |
22 | #include <linux/netlink.h> |
23 | #include <linux/genetlink.h> |
24 | #ifndef __KERNEL__ |
25 | #include <netlink/netlink.h> |
26 | #include <netlink/genl/genl.h> |
27 | #include <netlink/genl/ctrl.h> |
28 | #else |
29 | #include <net/genetlink.h> |
30 | #endif |
31 | |
32 | /* main attributes */ |
33 | enum { |
34 | SWITCH_ATTR_UNSPEC, |
35 | /* global */ |
36 | SWITCH_ATTR_TYPE, |
37 | /* device */ |
38 | SWITCH_ATTR_ID, |
39 | SWITCH_ATTR_NAME, |
40 | SWITCH_ATTR_DEV_NAME, |
41 | SWITCH_ATTR_VLANS, |
42 | SWITCH_ATTR_PORTS, |
43 | SWITCH_ATTR_CPU_PORT, |
44 | /* attributes */ |
45 | SWITCH_ATTR_OP_ID, |
46 | SWITCH_ATTR_OP_TYPE, |
47 | SWITCH_ATTR_OP_NAME, |
48 | SWITCH_ATTR_OP_PORT, |
49 | SWITCH_ATTR_OP_VLAN, |
50 | SWITCH_ATTR_OP_VALUE_INT, |
51 | SWITCH_ATTR_OP_VALUE_STR, |
52 | SWITCH_ATTR_OP_VALUE_PORTS, |
53 | SWITCH_ATTR_OP_DESCRIPTION, |
54 | /* port lists */ |
55 | SWITCH_ATTR_PORT, |
56 | SWITCH_ATTR_MAX |
57 | }; |
58 | |
59 | /* commands */ |
60 | enum { |
61 | SWITCH_CMD_UNSPEC, |
62 | SWITCH_CMD_GET_SWITCH, |
63 | SWITCH_CMD_NEW_ATTR, |
64 | SWITCH_CMD_LIST_GLOBAL, |
65 | SWITCH_CMD_GET_GLOBAL, |
66 | SWITCH_CMD_SET_GLOBAL, |
67 | SWITCH_CMD_LIST_PORT, |
68 | SWITCH_CMD_GET_PORT, |
69 | SWITCH_CMD_SET_PORT, |
70 | SWITCH_CMD_LIST_VLAN, |
71 | SWITCH_CMD_GET_VLAN, |
72 | SWITCH_CMD_SET_VLAN |
73 | }; |
74 | |
75 | /* data types */ |
76 | enum switch_val_type { |
77 | SWITCH_TYPE_UNSPEC, |
78 | SWITCH_TYPE_INT, |
79 | SWITCH_TYPE_STRING, |
80 | SWITCH_TYPE_PORTS, |
81 | SWITCH_TYPE_NOVAL, |
82 | }; |
83 | |
84 | /* port nested attributes */ |
85 | enum { |
86 | SWITCH_PORT_UNSPEC, |
87 | SWITCH_PORT_ID, |
88 | SWITCH_PORT_FLAG_TAGGED, |
89 | SWITCH_PORT_ATTR_MAX |
90 | }; |
91 | |
92 | #define SWITCH_ATTR_DEFAULTS_OFFSET 0x1000 |
93 | |
94 | #ifdef __KERNEL__ |
95 | |
96 | struct switch_dev; |
97 | struct switch_op; |
98 | struct switch_val; |
99 | struct switch_attr; |
100 | struct switch_attrlist; |
101 | |
102 | int register_switch(struct switch_dev *dev, struct net_device *netdev); |
103 | void unregister_switch(struct switch_dev *dev); |
104 | |
105 | struct switch_attrlist { |
106 | /* filled in by the driver */ |
107 | int n_attr; |
108 | const struct switch_attr *attr; |
109 | }; |
110 | |
111 | |
112 | struct switch_dev { |
113 | int id; |
114 | void *priv; |
115 | const char *name; |
116 | |
117 | /* NB: either devname or netdev must be set */ |
118 | const char *devname; |
119 | struct net_device *netdev; |
120 | |
121 | int ports; |
122 | int vlans; |
123 | int cpu_port; |
124 | struct switch_attrlist attr_global, attr_port, attr_vlan; |
125 | |
126 | spinlock_t lock; |
127 | struct switch_port *portbuf; |
128 | struct list_head dev_list; |
129 | unsigned long def_global, def_port, def_vlan; |
130 | |
131 | int (*get_vlan_ports)(struct switch_dev *dev, struct switch_val *val); |
132 | int (*set_vlan_ports)(struct switch_dev *dev, struct switch_val *val); |
133 | int (*get_port_pvid)(struct switch_dev *dev, int port, int *val); |
134 | int (*set_port_pvid)(struct switch_dev *dev, int port, int val); |
135 | int (*apply_config)(struct switch_dev *dev); |
136 | int (*reset_switch)(struct switch_dev *dev); |
137 | }; |
138 | |
139 | struct switch_port { |
140 | u32 id; |
141 | u32 flags; |
142 | }; |
143 | |
144 | struct switch_val { |
145 | const struct switch_attr *attr; |
146 | int port_vlan; |
147 | int len; |
148 | union { |
149 | const char *s; |
150 | u32 i; |
151 | struct switch_port *ports; |
152 | } value; |
153 | }; |
154 | |
155 | struct switch_attr { |
156 | int disabled; |
157 | int type; |
158 | const char *name; |
159 | const char *description; |
160 | |
161 | int (*set)(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val); |
162 | int (*get)(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val); |
163 | |
164 | /* for driver internal use */ |
165 | int id; |
166 | int ofs; |
167 | int max; |
168 | }; |
169 | |
170 | #endif |
171 | |
172 | #endif |
173 |
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