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/*
* switch.h: Switch configuration API
*
* Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __LINUX_SWITCH_H
#define __LINUX_SWITCH_H
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/genetlink.h>
#ifndef __KERNEL__
#include <netlink/netlink.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/ctrl.h>
#else
#include <net/genetlink.h>
#endif
/* main attributes */
enum {
SWITCH_ATTR_UNSPEC,
/* global */
SWITCH_ATTR_TYPE,
/* device */
SWITCH_ATTR_ID,
SWITCH_ATTR_DEV_NAME,
SWITCH_ATTR_ALIAS,
SWITCH_ATTR_NAME,
SWITCH_ATTR_VLANS,
SWITCH_ATTR_PORTS,
SWITCH_ATTR_CPU_PORT,
/* attributes */
SWITCH_ATTR_OP_ID,
SWITCH_ATTR_OP_TYPE,
SWITCH_ATTR_OP_NAME,
SWITCH_ATTR_OP_PORT,
SWITCH_ATTR_OP_VLAN,
SWITCH_ATTR_OP_VALUE_INT,
SWITCH_ATTR_OP_VALUE_STR,
SWITCH_ATTR_OP_VALUE_PORTS,
SWITCH_ATTR_OP_DESCRIPTION,
/* port lists */
SWITCH_ATTR_PORT,
SWITCH_ATTR_MAX
};
/* commands */
enum {
SWITCH_CMD_UNSPEC,
SWITCH_CMD_GET_SWITCH,
SWITCH_CMD_NEW_ATTR,
SWITCH_CMD_LIST_GLOBAL,
SWITCH_CMD_GET_GLOBAL,
SWITCH_CMD_SET_GLOBAL,
SWITCH_CMD_LIST_PORT,
SWITCH_CMD_GET_PORT,
SWITCH_CMD_SET_PORT,
SWITCH_CMD_LIST_VLAN,
SWITCH_CMD_GET_VLAN,
SWITCH_CMD_SET_VLAN
};
/* data types */
enum switch_val_type {
SWITCH_TYPE_UNSPEC,
SWITCH_TYPE_INT,
SWITCH_TYPE_STRING,
SWITCH_TYPE_PORTS,
SWITCH_TYPE_NOVAL,
};
/* port nested attributes */
enum {
SWITCH_PORT_UNSPEC,
SWITCH_PORT_ID,
SWITCH_PORT_FLAG_TAGGED,
SWITCH_PORT_ATTR_MAX
};
#define SWITCH_ATTR_DEFAULTS_OFFSET 0x1000
#ifdef __KERNEL__
struct switch_dev;
struct switch_op;
struct switch_val;
struct switch_attr;
struct switch_attrlist;
struct switch_led_trigger;
int register_switch(struct switch_dev *dev, struct net_device *netdev);
void unregister_switch(struct switch_dev *dev);
/**
* struct switch_attrlist - attribute list
*
* @n_attr: number of attributes
* @attr: pointer to the attributes array
*/
struct switch_attrlist {
int n_attr;
const struct switch_attr *attr;
};
enum switch_port_speed {
SWITCH_PORT_SPEED_UNKNOWN = 0,
SWITCH_PORT_SPEED_10 = 10,
SWITCH_PORT_SPEED_100 = 100,
SWITCH_PORT_SPEED_1000 = 1000,
};
struct switch_port_link {
bool link;
bool duplex;
bool aneg;
bool tx_flow;
bool rx_flow;
enum switch_port_speed speed;
};
struct switch_port_stats {
unsigned long tx_bytes;
unsigned long rx_bytes;
};
/**
* struct switch_dev_ops - switch driver operations
*
* @attr_global: global switch attribute list
* @attr_port: port attribute list
* @attr_vlan: vlan attribute list
*
* Callbacks:
*
* @get_vlan_ports: read the port list of a VLAN
* @set_vlan_ports: set the port list of a VLAN
*
* @get_port_pvid: get the primary VLAN ID of a port
* @set_port_pvid: set the primary VLAN ID of a port
*
* @apply_config: apply all changed settings to the switch
* @reset_switch: resetting the switch
*/
struct switch_dev_ops {
struct switch_attrlist attr_global, attr_port, attr_vlan;
int (*get_vlan_ports)(struct switch_dev *dev, struct switch_val *val);
int (*set_vlan_ports)(struct switch_dev *dev, struct switch_val *val);
int (*get_port_pvid)(struct switch_dev *dev, int port, int *val);
int (*set_port_pvid)(struct switch_dev *dev, int port, int val);
int (*apply_config)(struct switch_dev *dev);
int (*reset_switch)(struct switch_dev *dev);
int (*get_port_link)(struct switch_dev *dev, int port,
struct switch_port_link *link);
int (*get_port_stats)(struct switch_dev *dev, int port,
struct switch_port_stats *stats);
};
struct switch_dev {
const struct switch_dev_ops *ops;
/* will be automatically filled */
char devname[IFNAMSIZ];
const char *name;
/* NB: either alias or netdev must be set */
const char *alias;
struct net_device *netdev;
int ports;
int vlans;
int cpu_port;
/* the following fields are internal for swconfig */
int id;
struct list_head dev_list;
unsigned long def_global, def_port, def_vlan;
struct mutex sw_mutex;
struct switch_port *portbuf;
char buf[128];
#ifdef CONFIG_SWCONFIG_LEDS
struct switch_led_trigger *led_trigger;
#endif
};
struct switch_port {
u32 id;
u32 flags;
};
struct switch_val {
const struct switch_attr *attr;
int port_vlan;
int len;
union {
const char *s;
u32 i;
struct switch_port *ports;
} value;
};
struct switch_attr {
int disabled;
int type;
const char *name;
const char *description;
int (*set)(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val);
int (*get)(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val);
/* for driver internal use */
int id;
int ofs;
int max;
};
#endif
#endif
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