- /*
- * 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 MAX_BONDS 1 /* 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 */
- 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;
- } 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:
- */