| 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 | |
