[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	"3.6.0"
#define DRV_RELDATE	"September 26, 2009"
#define DRV_NAME	"bonding"
#define DRV_DESCRIPTION	"Ethernet Channel Bonding Driver"

#define BOND_MAX_ARP_TARGETS	16

extern struct list_head bond_dev_list;

#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;
	int ad_select;
	char primary[IFNAMSIZ];
	int primary_reselect;
	__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;
	u8     perm_hwaddr[ETH_ALEN];
	u16    speed;
	u8     duplex;
	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;
	bool     force_primary;
	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 *, 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 *)netdev_priv(slave->dev->master);
}

static inline bool bond_is_lb(const struct bonding *bond)
{
	return bond->params.mode == BOND_MODE_TLB
		|| bond->params.mode == BOND_MODE_ALB;
}

#define BOND_PRI_RESELECT_ALWAYS	0
#define BOND_PRI_RESELECT_BETTER	1
#define BOND_PRI_RESELECT_FAILURE	2

#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 = netdev_priv(slave->dev->master);
	if (!bond_is_lb(bond))
		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(const char *name);
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_prepare_sysfs_group(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, const 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 const struct bond_parm_tbl bond_lacp_tbl[];
extern const struct bond_parm_tbl bond_mode_tbl[];
extern const struct bond_parm_tbl xmit_hashtype_tbl[];
extern const struct bond_parm_tbl arp_validate_tbl[];
extern const struct bond_parm_tbl fail_over_mac_tbl[];
extern const struct bond_parm_tbl pri_reselect_tbl[];
extern struct bond_parm_tbl ad_select_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
a549952a JP	26	#define DRV_VERSION "3.6.0"
a549952a JP	27	#define DRV_RELDATE "September 26, 2009"
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	#define IS_UP(dev) \
	36	((((dev)->flags & IFF_UP) == IFF_UP) && \
	37	netif_running(dev) && \
	38	netif_carrier_ok(dev))
	39
	40	/*
	41	* Checks whether bond is ready for transmit.
	42	*
	43	* Caller must hold bond->lock
	44	*/
	45	#define BOND_IS_OK(bond) \
	46	(((bond)->dev->flags & IFF_UP) && \
	47	netif_running((bond)->dev) && \
	48	((bond)->slave_cnt > 0))
	49
	50	/*
	51	* Checks whether slave is ready for transmit.
	52	*/
	53	#define SLAVE_IS_OK(slave) \
	54	(((slave)->dev->flags & IFF_UP) && \
	55	netif_running((slave)->dev) && \
	56	((slave)->link == BOND_LINK_UP) && \
	57	((slave)->state == BOND_STATE_ACTIVE))
	58
	59
	60	#define USES_PRIMARY(mode) \
	61	(((mode) == BOND_MODE_ACTIVEBACKUP) \|\| \
	62	((mode) == BOND_MODE_TLB) \|\| \
	63	((mode) == BOND_MODE_ALB))
	64
	65	/*
	66	* Less bad way to call ioctl from within the kernel; this needs to be
	67	* done some other way to get the call out of interrupt context.
	68	* Needs "ioctl" variable to be supplied by calling context.
	69	*/
	70	#define IOCTL(dev, arg, cmd) ({ \
	71	int res = 0; \
	72	mm_segment_t fs = get_fs(); \
	73	set_fs(get_ds()); \
	74	res = ioctl(dev, arg, cmd); \
	75	set_fs(fs); \
	76	res; })
	77
	78	/**
	79	* bond_for_each_slave_from - iterate the slaves list from a starting point
	80	* @bond: the bond holding this list.
	81	* @pos: current slave.
	82	* @cnt: counter for max number of moves
	83	* @start: starting point.
	84	*
	85	* Caller must hold bond->lock
	86	*/
	87	#define bond_for_each_slave_from(bond, pos, cnt, start) \
	88	for (cnt = 0, pos = start; \
	89	cnt < (bond)->slave_cnt; \
	90	cnt++, pos = (pos)->next)
	91
	92	/**
	93	* bond_for_each_slave_from_to - iterate the slaves list from start point to stop point
	94	* @bond: the bond holding this list.
	95	* @pos: current slave.
	96	* @cnt: counter for number max of moves
	97	* @start: start point.
	98	* @stop: stop point.
99	*
100	* Caller must hold bond->lock
101	*/
102	#define bond_for_each_slave_from_to(bond, pos, cnt, start, stop) \
103	for (cnt = 0, pos = start; \
104	((cnt < (bond)->slave_cnt) && (pos != (stop)->next)); \
105	cnt++, pos = (pos)->next)
106
107	/**
108	* bond_for_each_slave - iterate the slaves list from head
109	* @bond: the bond holding this list.
110	* @pos: current slave.
111	* @cnt: counter for max number of moves
112	*
113	* Caller must hold bond->lock
114	*/
115	#define bond_for_each_slave(bond, pos, cnt) \
116	bond_for_each_slave_from(bond, pos, cnt, (bond)->first_slave)
117
118
119	struct bond_params {
120	int mode;
169a3e66	121	int xmit_policy;
1da177e4	122	int miimon;
7893b249	123	int num_grat_arp;
305d552a	124	int num_unsol_na;
1da177e4	125	int arp_interval;
f5b2b966	126	int arp_validate;
1da177e4	127	int use_carrier;
dd957c57	128	int fail_over_mac;
1da177e4 LT	129	int updelay;
	130	int downdelay;
	131	int lacp_fast;
fd989c83	132	int ad_select;
1da177e4	133	char primary[IFNAMSIZ];
a549952a	134	int primary_reselect;
d3bb52b0	135	__be32 arp_targets[BOND_MAX_ARP_TARGETS];
1da177e4 LT	136	};
1da177e4 LT	137
12479f9a MW	138	struct bond_parm_tbl {
	139	char *modename;
	140	int mode;
	141	};
	142
ece95f7f JV	143	#define BOND_MAX_MODENAME_LEN 20
ece95f7f JV	144
1da177e4 LT	145	struct vlan_entry {
1da177e4 LT	146	struct list_head vlan_list;
d3bb52b0	147	__be32 vlan_ip;
1da177e4	148	unsigned short vlan_id;
305d552a BH	149	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	150	struct in6_addr vlan_ipv6;
	151	#endif
1da177e4 LT	152	};
	153
	154	struct slave {
e944ef79	155	struct net_device dev; / first - useful for panic debug */
1da177e4 LT	156	struct slave *next;
1da177e4 LT	157	struct slave *prev;
8bb5f96b	158	int delay;
f8a8ccd5 AG	159	unsigned long jiffies;
f8a8ccd5 AG	160	unsigned long last_arp_rx;
1da177e4	161	s8 link; /* one of BOND_LINK_XXXX */
b2220cad	162	s8 new_link;
1da177e4 LT	163	s8 state; /* one of BOND_STATE_XXXX */
1da177e4 LT	164	u32 original_flags;
3158bf7d	165	u32 original_mtu;
1da177e4	166	u32 link_failure_count;
885a136c	167	u8 perm_hwaddr[ETH_ALEN];
1da177e4 LT	168	u16 speed;
1da177e4 LT	169	u8 duplex;
1da177e4 LT	170	struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */
	171	struct tlb_slave_info tlb_info;
	172	};
	173
b2220cad JV	174	/*
	175	* Link pseudo-state only used internally by monitors
	176	*/
	177	#define BOND_LINK_NOCHANGE -1
	178
1da177e4 LT	179	/*
	180	* Here are the locking policies for the two bonding locks:
	181	*
	182	* 1) Get bond->lock when reading/writing slave list.
	183	* 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave.
	184	* (It is unnecessary when the write-lock is put with bond->lock.)
	185	* 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock
	186	* beforehand.
	187	*/
	188	struct bonding {
e944ef79	189	struct net_device dev; / first - useful for panic debug */
1da177e4 LT	190	struct slave *first_slave;
	191	struct slave *curr_active_slave;
	192	struct slave *current_arp_slave;
	193	struct slave *primary_slave;
a549952a	194	bool force_primary;
1da177e4 LT	195	s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
	196	rwlock_t lock;
	197	rwlock_t curr_slave_lock;
1da177e4	198	s8 kill_timers;
1053f62c	199	s8 send_grat_arp;
305d552a	200	s8 send_unsol_na;
d90a162a	201	s8 setup_by_slave;
1da177e4 LT	202	struct net_device_stats stats;
	203	#ifdef CONFIG_PROC_FS
	204	struct proc_dir_entry *proc_entry;
	205	char proc_file_name[IFNAMSIZ];
	206	#endif /* CONFIG_PROC_FS */
	207	struct list_head bond_list;
	208	struct dev_mc_list *mc_list;
a361c83c	209	int (xmit_hash_policy)(struct sk_buff , int);
d3bb52b0	210	__be32 master_ip;
1da177e4	211	u16 flags;
cf5f9044	212	u16 rr_tx_counter;
1da177e4 LT	213	struct ad_bond_info ad_info;
	214	struct alb_bond_info alb_info;
	215	struct bond_params params;
	216	struct list_head vlan_list;
	217	struct vlan_group *vlgrp;
f5b2b966	218	struct packet_type arp_mon_pt;
1b76b316 JV	219	struct workqueue_struct *wq;
	220	struct delayed_work mii_work;
	221	struct delayed_work arp_work;
	222	struct delayed_work alb_work;
	223	struct delayed_work ad_work;
305d552a BH	224	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	225	struct in6_addr master_ipv6;
	226	#endif
1da177e4 LT	227	};
	228
	229	/**
	230	* Returns NULL if the net_device does not belong to any of the bond's slaves
	231	*
	232	* Caller must hold bond lock for read
	233	*/
cceb904f	234	static inline struct slave bond_get_slave_by_dev(struct bonding bond, struct net_device *slave_dev)
1da177e4 LT	235	{
	236	struct slave *slave = NULL;
	237	int i;
	238
	239	bond_for_each_slave(bond, slave, i) {
	240	if (slave->dev == slave_dev) {
	241	break;
	242	}
	243	}
	244
	245	return slave;
	246	}
	247
cceb904f	248	static inline struct bonding bond_get_bond_by_slave(struct slave slave)
1da177e4 LT	249	{
	250	if (!slave \|\| !slave->dev->master) {
	251	return NULL;
	252	}
	253
454d7c9b	254	return (struct bonding *)netdev_priv(slave->dev->master);
1da177e4 LT	255	}
1da177e4 LT	256
58402054 HE	257	static inline bool bond_is_lb(const struct bonding *bond)
	258	{
	259	return bond->params.mode == BOND_MODE_TLB
	260	\|\| bond->params.mode == BOND_MODE_ALB;
	261	}
	262
a549952a JP	263	#define BOND_PRI_RESELECT_ALWAYS 0
	264	#define BOND_PRI_RESELECT_BETTER 1
	265	#define BOND_PRI_RESELECT_FAILURE 2
	266
3915c1e8 JV	267	#define BOND_FOM_NONE 0
	268	#define BOND_FOM_ACTIVE 1
	269	#define BOND_FOM_FOLLOW 2
	270
f5b2b966 JV	271	#define BOND_ARP_VALIDATE_NONE 0
	272	#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
	273	#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
	274	#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE \| \
	275	BOND_ARP_VALIDATE_BACKUP)
	276
079ca7da AB	277	static inline int slave_do_arp_validate(struct bonding *bond,
079ca7da AB	278	struct slave *slave)
f5b2b966 JV	279	{
	280	return bond->params.arp_validate & (1 << slave->state);
	281	}
	282
079ca7da	283	static inline unsigned long slave_last_rx(struct bonding *bond,
f8a8ccd5	284	struct slave *slave)
f5b2b966 JV	285	{
	286	if (slave_do_arp_validate(bond, slave))
	287	return slave->last_arp_rx;
	288
	289	return slave->dev->last_rx;
	290	}
	291
cceb904f	292	static inline void bond_set_slave_inactive_flags(struct slave *slave)
1da177e4	293	{
454d7c9b	294	struct bonding *bond = netdev_priv(slave->dev->master);
ae63e808	295	if (!bond_is_lb(bond))
8f903c70 JV	296	slave->state = BOND_STATE_BACKUP;
8f903c70 JV	297	slave->dev->priv_flags \|= IFF_SLAVE_INACTIVE;
f5b2b966 JV	298	if (slave_do_arp_validate(bond, slave))
f5b2b966 JV	299	slave->dev->priv_flags \|= IFF_SLAVE_NEEDARP;
1da177e4 LT	300	}
1da177e4 LT	301
cceb904f	302	static inline void bond_set_slave_active_flags(struct slave *slave)
1da177e4 LT	303	{
1da177e4 LT	304	slave->state = BOND_STATE_ACTIVE;
f5b2b966	305	slave->dev->priv_flags &= ~(IFF_SLAVE_INACTIVE \| IFF_SLAVE_NEEDARP);
8f903c70 JV	306	}
	307
	308	static inline void bond_set_master_3ad_flags(struct bonding *bond)
	309	{
	310	bond->dev->priv_flags \|= IFF_MASTER_8023AD;
	311	}
	312
	313	static inline void bond_unset_master_3ad_flags(struct bonding *bond)
	314	{
	315	bond->dev->priv_flags &= ~IFF_MASTER_8023AD;
	316	}
	317
	318	static inline void bond_set_master_alb_flags(struct bonding *bond)
	319	{
	320	bond->dev->priv_flags \|= IFF_MASTER_ALB;
	321	}
	322
	323	static inline void bond_unset_master_alb_flags(struct bonding *bond)
	324	{
	325	bond->dev->priv_flags &= ~IFF_MASTER_ALB;
1da177e4 LT	326	}
	327
	328	struct vlan_entry bond_next_vlan(struct bonding bond, struct vlan_entry *curr);
	329	int bond_dev_queue_xmit(struct bonding bond, struct sk_buff skb, struct net_device *slave_dev);
d2991f75	330	int bond_create(const char *name);
d90a162a	331	int bond_release_and_destroy(struct net_device bond_dev, struct net_device slave_dev);
b76cdba9 MW	332	int bond_create_sysfs(void);
b76cdba9 MW	333	void bond_destroy_sysfs(void);
6151b3d4	334	void bond_prepare_sysfs_group(struct bonding *bond);
b76cdba9 MW	335	int bond_create_slave_symlinks(struct net_device master, struct net_device slave);
b76cdba9 MW	336	void bond_destroy_slave_symlinks(struct net_device master, struct net_device slave);
a77b5325 MW	337	int bond_enslave(struct net_device bond_dev, struct net_device slave_dev);
a77b5325 MW	338	int bond_release(struct net_device bond_dev, struct net_device slave_dev);
1b76b316 JV	339	void bond_mii_monitor(struct work_struct *);
	340	void bond_loadbalance_arp_mon(struct work_struct *);
	341	void bond_activebackup_arp_mon(struct work_struct *);
a77b5325	342	void bond_set_mode_ops(struct bonding *bond, int mode);
325dcf7a	343	int bond_parse_parm(const char mode_arg, const struct bond_parm_tbl tbl);
a77b5325 MW	344	void bond_select_active_slave(struct bonding *bond);
a77b5325 MW	345	void bond_change_active_slave(struct bonding bond, struct slave new_active);
f5b2b966 JV	346	void bond_register_arp(struct bonding *);
f5b2b966 JV	347	void bond_unregister_arp(struct bonding *);
1da177e4	348
b2259672 BD	349	/* exported from bond_main.c */
b2259672 BD	350	extern struct list_head bond_dev_list;
e97fd7c6 HE	351	extern const struct bond_parm_tbl bond_lacp_tbl[];
	352	extern const struct bond_parm_tbl bond_mode_tbl[];
	353	extern const struct bond_parm_tbl xmit_hashtype_tbl[];
	354	extern const struct bond_parm_tbl arp_validate_tbl[];
	355	extern const struct bond_parm_tbl fail_over_mac_tbl[];
a549952a	356	extern const struct bond_parm_tbl pri_reselect_tbl[];
b06715b7 HE	357	extern struct bond_parm_tbl ad_select_tbl[];
b06715b7 HE	358
305d552a BH	359	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	360	void bond_send_unsolicited_na(struct bonding *bond);
	361	void bond_register_ipv6_notifier(void);
	362	void bond_unregister_ipv6_notifier(void);
	363	#else
	364	static inline void bond_send_unsolicited_na(struct bonding *bond)
	365	{
	366	return;
	367	}
	368	static inline void bond_register_ipv6_notifier(void)
	369	{
	370	return;
	371	}
	372	static inline void bond_unregister_ipv6_notifier(void)
	373	{
	374	return;
	375	}
	376	#endif
	377
1da177e4	378	#endif /* _LINUX_BONDING_H */