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/*
* Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
*
*
* Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
* NCM: Network and Communications Management, Inc.
*
* BUT, I'm the one who modified it for ethernet, so:
* (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
*
* This software may be used and distributed according to the terms
* of the GNU Public License, incorporated herein by reference.
*
*/
#ifndef _LINUX_IF_BONDING_H
#define _LINUX_IF_BONDING_H
#ifdef __KERNEL__
#include <linux/timer.h>
#include <linux/if.h>
#include <linux/proc_fs.h>
#endif /* __KERNEL__ */
#include <linux/types.h>
/*
* We can remove these ioctl definitions in 2.5. People should use the
* SIOC*** versions of them instead
*/
#define BOND_ENSLAVE_OLD (SIOCDEVPRIVATE)
#define BOND_RELEASE_OLD (SIOCDEVPRIVATE + 1)
#define BOND_SETHWADDR_OLD (SIOCDEVPRIVATE + 2)
#define BOND_SLAVE_INFO_QUERY_OLD (SIOCDEVPRIVATE + 11)
#define BOND_INFO_QUERY_OLD (SIOCDEVPRIVATE + 12)
#define BOND_CHANGE_ACTIVE_OLD (SIOCDEVPRIVATE + 13)
#define BOND_CHECK_MII_STATUS (SIOCGMIIPHY)
#define BOND_MODE_ROUNDROBIN 0
#define BOND_MODE_ACTIVEBACKUP 1
#define BOND_MODE_XOR 2
/* each slave's link has 4 states */
#define BOND_LINK_UP 0 /* link is up and running */
#define BOND_LINK_FAIL 1 /* link has just gone down */
#define BOND_LINK_DOWN 2 /* link has been down for too long time */
#define BOND_LINK_BACK 3 /* link is going back */
/* each slave has several states */
#define BOND_STATE_ACTIVE 0 /* link is active */
#define BOND_STATE_BACKUP 1 /* link is backup */
#define BOND_DEFAULT_MAX_BONDS 1 /* Default maximum number of devices to support */
typedef struct ifbond {
__s32 bond_mode;
__s32 num_slaves;
__s32 miimon;
} ifbond;
typedef struct ifslave
{
__s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */
char slave_name[IFNAMSIZ];
char link;
char state;
__u32 link_failure_count;
} ifslave;
#ifdef __KERNEL__
typedef struct slave {
struct slave *next;
struct slave *prev;
struct net_device *dev;
short delay;
char link; /* one of BOND_LINK_XXXX */
char state; /* one of BOND_STATE_XXXX */
unsigned short original_flags;
u32 link_failure_count;
} slave_t;
/*
* Here are the locking policies for the two bonding locks:
*
* 1) Get bond->lock when reading/writing slave list.
* 2) Get bond->ptrlock when reading/writing bond->current_slave.
* (It is unnecessary when the write-lock is put with bond->lock.)
* 3) When we lock with bond->ptrlock, we must lock with bond->lock
* beforehand.
*/
typedef struct bonding {
slave_t *next;
slave_t *prev;
slave_t *current_slave;
__s32 slave_cnt;
rwlock_t lock;
rwlock_t ptrlock;
struct timer_list mii_timer;
struct timer_list arp_timer;
struct net_device_stats *stats;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *bond_proc_dir;
struct proc_dir_entry *bond_proc_info_file;
#endif /* CONFIG_PROC_FS */
struct bonding *next_bond;
struct net_device *device;
struct dev_mc_list *mc_list;
unsigned short flags;
} bonding_t;
#endif /* __KERNEL__ */
#endif /* _LINUX_BOND_H */
/*
* Local variables:
* version-control: t
* kept-new-versions: 5
* c-indent-level: 8
* c-basic-offset: 8
* tab-width: 8
* End:
*/
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