[net-next-2.6.git] / drivers / net / bonding / bonding.h

/*
 * 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_BONDING_H
#define _LINUX_BONDING_H

#include <linux/timer.h>
#include <linux/proc_fs.h>
#include <linux/if_bonding.h>
#include <linux/kobject.h>
#include <linux/in6.h>
#include "bond_3ad.h"
#include "bond_alb.h"

#define DRV_VERSION	"3.4.0"
#define DRV_RELDATE	"October 7, 2008"
#define DRV_NAME	"bonding"
#define DRV_DESCRIPTION	"Ethernet Channel Bonding Driver"

#define BOND_MAX_ARP_TARGETS	16

extern struct list_head bond_dev_list;

#ifdef BONDING_DEBUG
#define dprintk(fmt, args...) \
	printk(KERN_DEBUG     \
	       DRV_NAME ": %s() %d: " fmt, __func__, __LINE__ , ## args )
#else
#define dprintk(fmt, args...)
#endif /* BONDING_DEBUG */

#define IS_UP(dev)					   \
	      ((((dev)->flags & IFF_UP) == IFF_UP)	&& \
	       netif_running(dev)			&& \
	       netif_carrier_ok(dev))

/*
 * Checks whether bond is ready for transmit.
 *
 * Caller must hold bond->lock
 */
#define BOND_IS_OK(bond)			     \
		   (((bond)->dev->flags & IFF_UP) && \
		    netif_running((bond)->dev)	  && \
		    ((bond)->slave_cnt > 0))

/*
 * Checks whether slave is ready for transmit.
 */
#define SLAVE_IS_OK(slave)			        \
		    (((slave)->dev->flags & IFF_UP)  && \
		     netif_running((slave)->dev)     && \
		     ((slave)->link == BOND_LINK_UP) && \
		     ((slave)->state == BOND_STATE_ACTIVE))


#define USES_PRIMARY(mode)				\
		(((mode) == BOND_MODE_ACTIVEBACKUP) ||	\
		 ((mode) == BOND_MODE_TLB)          ||	\
		 ((mode) == BOND_MODE_ALB))

/*
 * Less bad way to call ioctl from within the kernel; this needs to be
 * done some other way to get the call out of interrupt context.
 * Needs "ioctl" variable to be supplied by calling context.
 */
#define IOCTL(dev, arg, cmd) ({		\
	int res = 0;			\
	mm_segment_t fs = get_fs();	\
	set_fs(get_ds());		\
	res = ioctl(dev, arg, cmd);	\
	set_fs(fs);			\
	res; })

/**
 * bond_for_each_slave_from - iterate the slaves list from a starting point
 * @bond:	the bond holding this list.
 * @pos:	current slave.
 * @cnt:	counter for max number of moves
 * @start:	starting point.
 *
 * Caller must hold bond->lock
 */
#define bond_for_each_slave_from(bond, pos, cnt, start)	\
	for (cnt = 0, pos = start;				\
	     cnt < (bond)->slave_cnt;				\
             cnt++, pos = (pos)->next)

/**
 * bond_for_each_slave_from_to - iterate the slaves list from start point to stop point
 * @bond:	the bond holding this list.
 * @pos:	current slave.
 * @cnt:	counter for number max of moves
 * @start:	start point.
 * @stop:	stop point.
 *
 * Caller must hold bond->lock
 */
#define bond_for_each_slave_from_to(bond, pos, cnt, start, stop)	\
	for (cnt = 0, pos = start;					\
	     ((cnt < (bond)->slave_cnt) && (pos != (stop)->next));	\
             cnt++, pos = (pos)->next)

/**
 * bond_for_each_slave - iterate the slaves list from head
 * @bond:	the bond holding this list.
 * @pos:	current slave.
 * @cnt:	counter for max number of moves
 *
 * Caller must hold bond->lock
 */
#define bond_for_each_slave(bond, pos, cnt)	\
		bond_for_each_slave_from(bond, pos, cnt, (bond)->first_slave)


struct bond_params {
	int mode;
	int xmit_policy;
	int miimon;
	int num_grat_arp;
	int num_unsol_na;
	int arp_interval;
	int arp_validate;
	int use_carrier;
	int fail_over_mac;
	int updelay;
	int downdelay;
	int lacp_fast;
	char primary[IFNAMSIZ];
	__be32 arp_targets[BOND_MAX_ARP_TARGETS];
};

struct bond_parm_tbl {
	char *modename;
	int mode;
};

#define BOND_MAX_MODENAME_LEN 20

struct vlan_entry {
	struct list_head vlan_list;
	__be32 vlan_ip;
	unsigned short vlan_id;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
	struct in6_addr vlan_ipv6;
#endif
};

struct slave {
	struct net_device *dev; /* first - useful for panic debug */
	struct slave *next;
	struct slave *prev;
	int    delay;
	unsigned long jiffies;
	unsigned long last_arp_rx;
	s8     link;    /* one of BOND_LINK_XXXX */
	s8     new_link;
	s8     state;   /* one of BOND_STATE_XXXX */
	u32    original_flags;
	u32    original_mtu;
	u32    link_failure_count;
	u16    speed;
	u8     duplex;
	u8     perm_hwaddr[ETH_ALEN];
	struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */
	struct tlb_slave_info tlb_info;
};

/*
 * Link pseudo-state only used internally by monitors
 */
#define BOND_LINK_NOCHANGE -1

/*
 * Here are the locking policies for the two bonding locks:
 *
 * 1) Get bond->lock when reading/writing slave list.
 * 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave.
 *    (It is unnecessary when the write-lock is put with bond->lock.)
 * 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock
 *    beforehand.
 */
struct bonding {
	struct   net_device *dev; /* first - useful for panic debug */
	struct   slave *first_slave;
	struct   slave *curr_active_slave;
	struct   slave *current_arp_slave;
	struct   slave *primary_slave;
	s32      slave_cnt; /* never change this value outside the attach/detach wrappers */
	rwlock_t lock;
	rwlock_t curr_slave_lock;
	s8       kill_timers;
	s8	 send_grat_arp;
	s8	 send_unsol_na;
	s8	 setup_by_slave;
	struct   net_device_stats stats;
#ifdef CONFIG_PROC_FS
	struct   proc_dir_entry *proc_entry;
	char     proc_file_name[IFNAMSIZ];
#endif /* CONFIG_PROC_FS */
	struct   list_head bond_list;
	struct   dev_mc_list *mc_list;
	int      (*xmit_hash_policy)(struct sk_buff *, struct net_device *, int);
	__be32   master_ip;
	u16      flags;
	u16      rr_tx_counter;
	struct   ad_bond_info ad_info;
	struct   alb_bond_info alb_info;
	struct   bond_params params;
	struct   list_head vlan_list;
	struct   vlan_group *vlgrp;
	struct   packet_type arp_mon_pt;
	struct   workqueue_struct *wq;
	struct   delayed_work mii_work;
	struct   delayed_work arp_work;
	struct   delayed_work alb_work;
	struct   delayed_work ad_work;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
	struct   in6_addr master_ipv6;
#endif
};

/**
 * Returns NULL if the net_device does not belong to any of the bond's slaves
 *
 * Caller must hold bond lock for read
 */
static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, struct net_device *slave_dev)
{
	struct slave *slave = NULL;
	int i;

	bond_for_each_slave(bond, slave, i) {
		if (slave->dev == slave_dev) {
			break;
		}
	}

	return slave;
}

static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
{
	if (!slave || !slave->dev->master) {
		return NULL;
	}

	return (struct bonding *)slave->dev->master->priv;
}

#define BOND_FOM_NONE			0
#define BOND_FOM_ACTIVE			1
#define BOND_FOM_FOLLOW			2

#define BOND_ARP_VALIDATE_NONE		0
#define BOND_ARP_VALIDATE_ACTIVE	(1 << BOND_STATE_ACTIVE)
#define BOND_ARP_VALIDATE_BACKUP	(1 << BOND_STATE_BACKUP)
#define BOND_ARP_VALIDATE_ALL		(BOND_ARP_VALIDATE_ACTIVE | \
					 BOND_ARP_VALIDATE_BACKUP)

static inline int slave_do_arp_validate(struct bonding *bond,
					struct slave *slave)
{
	return bond->params.arp_validate & (1 << slave->state);
}

static inline unsigned long slave_last_rx(struct bonding *bond,
					struct slave *slave)
{
	if (slave_do_arp_validate(bond, slave))
		return slave->last_arp_rx;

	return slave->dev->last_rx;
}

static inline void bond_set_slave_inactive_flags(struct slave *slave)
{
	struct bonding *bond = slave->dev->master->priv;
	if (bond->params.mode != BOND_MODE_TLB &&
	    bond->params.mode != BOND_MODE_ALB)
		slave->state = BOND_STATE_BACKUP;
	slave->dev->priv_flags |= IFF_SLAVE_INACTIVE;
	if (slave_do_arp_validate(bond, slave))
		slave->dev->priv_flags |= IFF_SLAVE_NEEDARP;
}

static inline void bond_set_slave_active_flags(struct slave *slave)
{
	slave->state = BOND_STATE_ACTIVE;
	slave->dev->priv_flags &= ~(IFF_SLAVE_INACTIVE | IFF_SLAVE_NEEDARP);
}

static inline void bond_set_master_3ad_flags(struct bonding *bond)
{
	bond->dev->priv_flags |= IFF_MASTER_8023AD;
}

static inline void bond_unset_master_3ad_flags(struct bonding *bond)
{
	bond->dev->priv_flags &= ~IFF_MASTER_8023AD;
}

static inline void bond_set_master_alb_flags(struct bonding *bond)
{
	bond->dev->priv_flags |= IFF_MASTER_ALB;
}

static inline void bond_unset_master_alb_flags(struct bonding *bond)
{
	bond->dev->priv_flags &= ~IFF_MASTER_ALB;
}

struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr);
int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
int bond_create(char *name, struct bond_params *params);
void bond_destroy(struct bonding *bond);
int  bond_release_and_destroy(struct net_device *bond_dev, struct net_device *slave_dev);
int bond_create_sysfs(void);
void bond_destroy_sysfs(void);
void bond_destroy_sysfs_entry(struct bonding *bond);
int bond_create_sysfs_entry(struct bonding *bond);
int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave);
void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave);
int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev);
int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
void bond_mii_monitor(struct work_struct *);
void bond_loadbalance_arp_mon(struct work_struct *);
void bond_activebackup_arp_mon(struct work_struct *);
void bond_set_mode_ops(struct bonding *bond, int mode);
int bond_parse_parm(const char *mode_arg, struct bond_parm_tbl *tbl);
void bond_select_active_slave(struct bonding *bond);
void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
void bond_register_arp(struct bonding *);
void bond_unregister_arp(struct bonding *);

/* exported from bond_main.c */
extern struct list_head bond_dev_list;
extern struct bond_parm_tbl bond_lacp_tbl[];
extern struct bond_parm_tbl bond_mode_tbl[];
extern struct bond_parm_tbl xmit_hashtype_tbl[];
extern struct bond_parm_tbl arp_validate_tbl[];
extern struct bond_parm_tbl fail_over_mac_tbl[];

#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
void bond_send_unsolicited_na(struct bonding *bond);
void bond_register_ipv6_notifier(void);
void bond_unregister_ipv6_notifier(void);
#else
static inline void bond_send_unsolicited_na(struct bonding *bond)
{
	return;
}
static inline void bond_register_ipv6_notifier(void)
{
	return;
}
static inline void bond_unregister_ipv6_notifier(void)
{
	return;
}
#endif

#endif /* _LINUX_BONDING_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
	3	*
	4	* Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
	5	* NCM: Network and Communications Management, Inc.
	6	*
	7	* BUT, I'm the one who modified it for ethernet, so:
	8	* (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
	9	*
	10	* This software may be used and distributed according to the terms
	11	* of the GNU Public License, incorporated herein by reference.
	12	*
1da177e4 LT	13	*/
	14
	15	#ifndef _LINUX_BONDING_H
	16	#define _LINUX_BONDING_H
	17
	18	#include <linux/timer.h>
	19	#include <linux/proc_fs.h>
	20	#include <linux/if_bonding.h>
b76cdba9	21	#include <linux/kobject.h>
305d552a	22	#include <linux/in6.h>
1da177e4 LT	23	#include "bond_3ad.h"
	24	#include "bond_alb.h"
	25
305d552a BH	26	#define DRV_VERSION "3.4.0"
305d552a BH	27	#define DRV_RELDATE "October 7, 2008"
1da177e4 LT	28	#define DRV_NAME "bonding"
	29	#define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"
	30
	31	#define BOND_MAX_ARP_TARGETS 16
	32
305d552a BH	33	extern struct list_head bond_dev_list;
305d552a BH	34
1da177e4 LT	35	#ifdef BONDING_DEBUG
	36	#define dprintk(fmt, args...) \
	37	printk(KERN_DEBUG \
b39d66a8	38	DRV_NAME ": %s() %d: " fmt, __func__, __LINE__ , ## args )
1da177e4 LT	39	#else
	40	#define dprintk(fmt, args...)
	41	#endif /* BONDING_DEBUG */
	42
	43	#define IS_UP(dev) \
	44	((((dev)->flags & IFF_UP) == IFF_UP) && \
	45	netif_running(dev) && \
	46	netif_carrier_ok(dev))
	47
	48	/*
	49	* Checks whether bond is ready for transmit.
	50	*
	51	* Caller must hold bond->lock
	52	*/
	53	#define BOND_IS_OK(bond) \
	54	(((bond)->dev->flags & IFF_UP) && \
	55	netif_running((bond)->dev) && \
	56	((bond)->slave_cnt > 0))
	57
	58	/*
	59	* Checks whether slave is ready for transmit.
	60	*/
	61	#define SLAVE_IS_OK(slave) \
	62	(((slave)->dev->flags & IFF_UP) && \
	63	netif_running((slave)->dev) && \
	64	((slave)->link == BOND_LINK_UP) && \
	65	((slave)->state == BOND_STATE_ACTIVE))
	66
	67
	68	#define USES_PRIMARY(mode) \
	69	(((mode) == BOND_MODE_ACTIVEBACKUP) \|\| \
	70	((mode) == BOND_MODE_TLB) \|\| \
	71	((mode) == BOND_MODE_ALB))
	72
	73	/*
	74	* Less bad way to call ioctl from within the kernel; this needs to be
	75	* done some other way to get the call out of interrupt context.
	76	* Needs "ioctl" variable to be supplied by calling context.
	77	*/
	78	#define IOCTL(dev, arg, cmd) ({ \
	79	int res = 0; \
	80	mm_segment_t fs = get_fs(); \
	81	set_fs(get_ds()); \
	82	res = ioctl(dev, arg, cmd); \
	83	set_fs(fs); \
	84	res; })
	85
	86	/**
	87	* bond_for_each_slave_from - iterate the slaves list from a starting point
	88	* @bond: the bond holding this list.
	89	* @pos: current slave.
	90	* @cnt: counter for max number of moves
	91	* @start: starting point.
	92	*
	93	* Caller must hold bond->lock
	94	*/
	95	#define bond_for_each_slave_from(bond, pos, cnt, start) \
	96	for (cnt = 0, pos = start; \
	97	cnt < (bond)->slave_cnt; \
	98	cnt++, pos = (pos)->next)
	99
	100	/**
	101	* bond_for_each_slave_from_to - iterate the slaves list from start point to stop point
	102	* @bond: the bond holding this list.
103	* @pos: current slave.
104	* @cnt: counter for number max of moves
105	* @start: start point.
106	* @stop: stop point.
107	*
108	* Caller must hold bond->lock
109	*/
110	#define bond_for_each_slave_from_to(bond, pos, cnt, start, stop) \
111	for (cnt = 0, pos = start; \
112	((cnt < (bond)->slave_cnt) && (pos != (stop)->next)); \
113	cnt++, pos = (pos)->next)
114
115	/**
116	* bond_for_each_slave - iterate the slaves list from head
117	* @bond: the bond holding this list.
118	* @pos: current slave.
119	* @cnt: counter for max number of moves
120	*
121	* Caller must hold bond->lock
122	*/
123	#define bond_for_each_slave(bond, pos, cnt) \
124	bond_for_each_slave_from(bond, pos, cnt, (bond)->first_slave)
125
126
127	struct bond_params {
128	int mode;
169a3e66	129	int xmit_policy;
1da177e4	130	int miimon;
7893b249	131	int num_grat_arp;
305d552a	132	int num_unsol_na;
1da177e4	133	int arp_interval;
f5b2b966	134	int arp_validate;
1da177e4	135	int use_carrier;
dd957c57	136	int fail_over_mac;
1da177e4 LT	137	int updelay;
	138	int downdelay;
	139	int lacp_fast;
	140	char primary[IFNAMSIZ];
d3bb52b0	141	__be32 arp_targets[BOND_MAX_ARP_TARGETS];
1da177e4 LT	142	};
1da177e4 LT	143
12479f9a MW	144	struct bond_parm_tbl {
	145	char *modename;
	146	int mode;
	147	};
	148
ece95f7f JV	149	#define BOND_MAX_MODENAME_LEN 20
ece95f7f JV	150
1da177e4 LT	151	struct vlan_entry {
1da177e4 LT	152	struct list_head vlan_list;
d3bb52b0	153	__be32 vlan_ip;
1da177e4	154	unsigned short vlan_id;
305d552a BH	155	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	156	struct in6_addr vlan_ipv6;
	157	#endif
1da177e4 LT	158	};
	159
	160	struct slave {
e944ef79	161	struct net_device dev; / first - useful for panic debug */
1da177e4 LT	162	struct slave *next;
1da177e4 LT	163	struct slave *prev;
8bb5f96b	164	int delay;
f8a8ccd5 AG	165	unsigned long jiffies;
f8a8ccd5 AG	166	unsigned long last_arp_rx;
1da177e4	167	s8 link; /* one of BOND_LINK_XXXX */
b2220cad	168	s8 new_link;
1da177e4 LT	169	s8 state; /* one of BOND_STATE_XXXX */
1da177e4 LT	170	u32 original_flags;
3158bf7d	171	u32 original_mtu;
1da177e4 LT	172	u32 link_failure_count;
	173	u16 speed;
	174	u8 duplex;
	175	u8 perm_hwaddr[ETH_ALEN];
	176	struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */
	177	struct tlb_slave_info tlb_info;
	178	};
	179
b2220cad JV	180	/*
	181	* Link pseudo-state only used internally by monitors
	182	*/
	183	#define BOND_LINK_NOCHANGE -1
	184
1da177e4 LT	185	/*
	186	* Here are the locking policies for the two bonding locks:
	187	*
	188	* 1) Get bond->lock when reading/writing slave list.
	189	* 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave.
	190	* (It is unnecessary when the write-lock is put with bond->lock.)
	191	* 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock
	192	* beforehand.
	193	*/
	194	struct bonding {
e944ef79	195	struct net_device dev; / first - useful for panic debug */
1da177e4 LT	196	struct slave *first_slave;
	197	struct slave *curr_active_slave;
	198	struct slave *current_arp_slave;
	199	struct slave *primary_slave;
	200	s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
	201	rwlock_t lock;
	202	rwlock_t curr_slave_lock;
1da177e4	203	s8 kill_timers;
1053f62c	204	s8 send_grat_arp;
305d552a	205	s8 send_unsol_na;
d90a162a	206	s8 setup_by_slave;
1da177e4 LT	207	struct net_device_stats stats;
	208	#ifdef CONFIG_PROC_FS
	209	struct proc_dir_entry *proc_entry;
	210	char proc_file_name[IFNAMSIZ];
	211	#endif /* CONFIG_PROC_FS */
	212	struct list_head bond_list;
	213	struct dev_mc_list *mc_list;
169a3e66	214	int (xmit_hash_policy)(struct sk_buff , struct net_device *, int);
d3bb52b0	215	__be32 master_ip;
1da177e4	216	u16 flags;
cf5f9044	217	u16 rr_tx_counter;
1da177e4 LT	218	struct ad_bond_info ad_info;
	219	struct alb_bond_info alb_info;
	220	struct bond_params params;
	221	struct list_head vlan_list;
	222	struct vlan_group *vlgrp;
f5b2b966	223	struct packet_type arp_mon_pt;
1b76b316 JV	224	struct workqueue_struct *wq;
	225	struct delayed_work mii_work;
	226	struct delayed_work arp_work;
	227	struct delayed_work alb_work;
	228	struct delayed_work ad_work;
305d552a BH	229	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	230	struct in6_addr master_ipv6;
	231	#endif
1da177e4 LT	232	};
	233
	234	/**
	235	* Returns NULL if the net_device does not belong to any of the bond's slaves
	236	*
	237	* Caller must hold bond lock for read
	238	*/
cceb904f	239	static inline struct slave bond_get_slave_by_dev(struct bonding bond, struct net_device *slave_dev)
1da177e4 LT	240	{
	241	struct slave *slave = NULL;
	242	int i;
	243
	244	bond_for_each_slave(bond, slave, i) {
	245	if (slave->dev == slave_dev) {
	246	break;
	247	}
	248	}
	249
	250	return slave;
	251	}
	252
cceb904f	253	static inline struct bonding bond_get_bond_by_slave(struct slave slave)
1da177e4 LT	254	{
	255	if (!slave \|\| !slave->dev->master) {
	256	return NULL;
	257	}
	258
	259	return (struct bonding *)slave->dev->master->priv;
	260	}
	261
3915c1e8 JV	262	#define BOND_FOM_NONE 0
	263	#define BOND_FOM_ACTIVE 1
	264	#define BOND_FOM_FOLLOW 2
	265
f5b2b966 JV	266	#define BOND_ARP_VALIDATE_NONE 0
	267	#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
	268	#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
	269	#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE \| \
	270	BOND_ARP_VALIDATE_BACKUP)
	271
079ca7da AB	272	static inline int slave_do_arp_validate(struct bonding *bond,
079ca7da AB	273	struct slave *slave)
f5b2b966 JV	274	{
	275	return bond->params.arp_validate & (1 << slave->state);
	276	}
	277
079ca7da	278	static inline unsigned long slave_last_rx(struct bonding *bond,
f8a8ccd5	279	struct slave *slave)
f5b2b966 JV	280	{
	281	if (slave_do_arp_validate(bond, slave))
	282	return slave->last_arp_rx;
	283
	284	return slave->dev->last_rx;
	285	}
	286
cceb904f	287	static inline void bond_set_slave_inactive_flags(struct slave *slave)
1da177e4	288	{
8f903c70 JV	289	struct bonding *bond = slave->dev->master->priv;
	290	if (bond->params.mode != BOND_MODE_TLB &&
	291	bond->params.mode != BOND_MODE_ALB)
	292	slave->state = BOND_STATE_BACKUP;
	293	slave->dev->priv_flags \|= IFF_SLAVE_INACTIVE;
f5b2b966 JV	294	if (slave_do_arp_validate(bond, slave))
f5b2b966 JV	295	slave->dev->priv_flags \|= IFF_SLAVE_NEEDARP;
1da177e4 LT	296	}
1da177e4 LT	297
cceb904f	298	static inline void bond_set_slave_active_flags(struct slave *slave)
1da177e4 LT	299	{
1da177e4 LT	300	slave->state = BOND_STATE_ACTIVE;
f5b2b966	301	slave->dev->priv_flags &= ~(IFF_SLAVE_INACTIVE \| IFF_SLAVE_NEEDARP);
8f903c70 JV	302	}
	303
	304	static inline void bond_set_master_3ad_flags(struct bonding *bond)
	305	{
	306	bond->dev->priv_flags \|= IFF_MASTER_8023AD;
	307	}
	308
	309	static inline void bond_unset_master_3ad_flags(struct bonding *bond)
	310	{
	311	bond->dev->priv_flags &= ~IFF_MASTER_8023AD;
	312	}
	313
	314	static inline void bond_set_master_alb_flags(struct bonding *bond)
	315	{
	316	bond->dev->priv_flags \|= IFF_MASTER_ALB;
	317	}
	318
	319	static inline void bond_unset_master_alb_flags(struct bonding *bond)
	320	{
	321	bond->dev->priv_flags &= ~IFF_MASTER_ALB;
1da177e4 LT	322	}
	323
	324	struct vlan_entry bond_next_vlan(struct bonding bond, struct vlan_entry *curr);
	325	int bond_dev_queue_xmit(struct bonding bond, struct sk_buff skb, struct net_device *slave_dev);
0dd646fe	326	int bond_create(char name, struct bond_params params);
d90a162a MS	327	void bond_destroy(struct bonding *bond);
d90a162a MS	328	int bond_release_and_destroy(struct net_device bond_dev, struct net_device slave_dev);
b76cdba9 MW	329	int bond_create_sysfs(void);
	330	void bond_destroy_sysfs(void);
	331	void bond_destroy_sysfs_entry(struct bonding *bond);
	332	int bond_create_sysfs_entry(struct bonding *bond);
	333	int bond_create_slave_symlinks(struct net_device master, struct net_device slave);
	334	void bond_destroy_slave_symlinks(struct net_device master, struct net_device slave);
a77b5325 MW	335	int bond_enslave(struct net_device bond_dev, struct net_device slave_dev);
a77b5325 MW	336	int bond_release(struct net_device bond_dev, struct net_device slave_dev);
1b76b316 JV	337	void bond_mii_monitor(struct work_struct *);
	338	void bond_loadbalance_arp_mon(struct work_struct *);
	339	void bond_activebackup_arp_mon(struct work_struct *);
a77b5325	340	void bond_set_mode_ops(struct bonding *bond, int mode);
ece95f7f	341	int bond_parse_parm(const char mode_arg, struct bond_parm_tbl tbl);
a77b5325 MW	342	void bond_select_active_slave(struct bonding *bond);
a77b5325 MW	343	void bond_change_active_slave(struct bonding bond, struct slave new_active);
f5b2b966 JV	344	void bond_register_arp(struct bonding *);
f5b2b966 JV	345	void bond_unregister_arp(struct bonding *);
1da177e4	346
b2259672 BD	347	/* exported from bond_main.c */
	348	extern struct list_head bond_dev_list;
	349	extern struct bond_parm_tbl bond_lacp_tbl[];
	350	extern struct bond_parm_tbl bond_mode_tbl[];
	351	extern struct bond_parm_tbl xmit_hashtype_tbl[];
	352	extern struct bond_parm_tbl arp_validate_tbl[];
	353	extern struct bond_parm_tbl fail_over_mac_tbl[];
	354
305d552a BH	355	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	356	void bond_send_unsolicited_na(struct bonding *bond);
	357	void bond_register_ipv6_notifier(void);
	358	void bond_unregister_ipv6_notifier(void);
	359	#else
	360	static inline void bond_send_unsolicited_na(struct bonding *bond)
	361	{
	362	return;
	363	}
	364	static inline void bond_register_ipv6_notifier(void)
	365	{
	366	return;
	367	}
	368	static inline void bond_unregister_ipv6_notifier(void)
	369	{
	370	return;
	371	}
	372	#endif
	373
1da177e4 LT	374	#endif /* _LINUX_BONDING_H */
1da177e4 LT	375