[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

#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;
#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(struct net *net, 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 *);

struct bond_net {
	struct net *		net;	/* Associated network namespace */
	struct list_head	dev_list;
#ifdef CONFIG_PROC_FS
	struct proc_dir_entry *	proc_dir;
#endif
};

/* exported from bond_main.c */
extern int bond_net_id;
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
1da177e4 LT	33	#define IS_UP(dev) \
	34	((((dev)->flags & IFF_UP) == IFF_UP) && \
	35	netif_running(dev) && \
	36	netif_carrier_ok(dev))
	37
	38	/*
	39	* Checks whether bond is ready for transmit.
	40	*
	41	* Caller must hold bond->lock
	42	*/
	43	#define BOND_IS_OK(bond) \
	44	(((bond)->dev->flags & IFF_UP) && \
	45	netif_running((bond)->dev) && \
	46	((bond)->slave_cnt > 0))
	47
	48	/*
	49	* Checks whether slave is ready for transmit.
	50	*/
	51	#define SLAVE_IS_OK(slave) \
	52	(((slave)->dev->flags & IFF_UP) && \
	53	netif_running((slave)->dev) && \
	54	((slave)->link == BOND_LINK_UP) && \
	55	((slave)->state == BOND_STATE_ACTIVE))
	56
	57
	58	#define USES_PRIMARY(mode) \
	59	(((mode) == BOND_MODE_ACTIVEBACKUP) \|\| \
	60	((mode) == BOND_MODE_TLB) \|\| \
	61	((mode) == BOND_MODE_ALB))
	62
	63	/*
	64	* Less bad way to call ioctl from within the kernel; this needs to be
	65	* done some other way to get the call out of interrupt context.
	66	* Needs "ioctl" variable to be supplied by calling context.
	67	*/
	68	#define IOCTL(dev, arg, cmd) ({ \
	69	int res = 0; \
	70	mm_segment_t fs = get_fs(); \
	71	set_fs(get_ds()); \
	72	res = ioctl(dev, arg, cmd); \
	73	set_fs(fs); \
	74	res; })
	75
	76	/**
	77	* bond_for_each_slave_from - iterate the slaves list from a starting point
	78	* @bond: the bond holding this list.
	79	* @pos: current slave.
	80	* @cnt: counter for max number of moves
	81	* @start: starting point.
	82	*
	83	* Caller must hold bond->lock
	84	*/
	85	#define bond_for_each_slave_from(bond, pos, cnt, start) \
	86	for (cnt = 0, pos = start; \
	87	cnt < (bond)->slave_cnt; \
	88	cnt++, pos = (pos)->next)
	89
	90	/**
	91	* bond_for_each_slave_from_to - iterate the slaves list from start point to stop point
	92	* @bond: the bond holding this list.
	93	* @pos: current slave.
	94	* @cnt: counter for number max of moves
	95	* @start: start point.
	96	* @stop: stop point.
97	*
98	* Caller must hold bond->lock
99	*/
100	#define bond_for_each_slave_from_to(bond, pos, cnt, start, stop) \
101	for (cnt = 0, pos = start; \
102	((cnt < (bond)->slave_cnt) && (pos != (stop)->next)); \
103	cnt++, pos = (pos)->next)
104
105	/**
106	* bond_for_each_slave - iterate the slaves list from head
107	* @bond: the bond holding this list.
108	* @pos: current slave.
109	* @cnt: counter for max number of moves
110	*
111	* Caller must hold bond->lock
112	*/
113	#define bond_for_each_slave(bond, pos, cnt) \
114	bond_for_each_slave_from(bond, pos, cnt, (bond)->first_slave)
115
116
117	struct bond_params {
118	int mode;
169a3e66	119	int xmit_policy;
1da177e4	120	int miimon;
7893b249	121	int num_grat_arp;
305d552a	122	int num_unsol_na;
1da177e4	123	int arp_interval;
f5b2b966	124	int arp_validate;
1da177e4	125	int use_carrier;
dd957c57	126	int fail_over_mac;
1da177e4 LT	127	int updelay;
	128	int downdelay;
	129	int lacp_fast;
fd989c83	130	int ad_select;
1da177e4	131	char primary[IFNAMSIZ];
a549952a	132	int primary_reselect;
d3bb52b0	133	__be32 arp_targets[BOND_MAX_ARP_TARGETS];
1da177e4 LT	134	};
1da177e4 LT	135
12479f9a MW	136	struct bond_parm_tbl {
	137	char *modename;
	138	int mode;
	139	};
	140
ece95f7f JV	141	#define BOND_MAX_MODENAME_LEN 20
ece95f7f JV	142
1da177e4 LT	143	struct vlan_entry {
1da177e4 LT	144	struct list_head vlan_list;
d3bb52b0	145	__be32 vlan_ip;
1da177e4	146	unsigned short vlan_id;
305d552a BH	147	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	148	struct in6_addr vlan_ipv6;
	149	#endif
1da177e4 LT	150	};
	151
	152	struct slave {
e944ef79	153	struct net_device dev; / first - useful for panic debug */
1da177e4 LT	154	struct slave *next;
1da177e4 LT	155	struct slave *prev;
8bb5f96b	156	int delay;
f8a8ccd5 AG	157	unsigned long jiffies;
f8a8ccd5 AG	158	unsigned long last_arp_rx;
1da177e4	159	s8 link; /* one of BOND_LINK_XXXX */
b2220cad	160	s8 new_link;
1da177e4 LT	161	s8 state; /* one of BOND_STATE_XXXX */
1da177e4 LT	162	u32 original_flags;
3158bf7d	163	u32 original_mtu;
1da177e4	164	u32 link_failure_count;
885a136c	165	u8 perm_hwaddr[ETH_ALEN];
1da177e4 LT	166	u16 speed;
1da177e4 LT	167	u8 duplex;
1da177e4 LT	168	struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */
	169	struct tlb_slave_info tlb_info;
	170	};
	171
b2220cad JV	172	/*
	173	* Link pseudo-state only used internally by monitors
	174	*/
	175	#define BOND_LINK_NOCHANGE -1
	176
1da177e4 LT	177	/*
	178	* Here are the locking policies for the two bonding locks:
	179	*
	180	* 1) Get bond->lock when reading/writing slave list.
	181	* 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave.
	182	* (It is unnecessary when the write-lock is put with bond->lock.)
	183	* 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock
	184	* beforehand.
	185	*/
	186	struct bonding {
e944ef79	187	struct net_device dev; / first - useful for panic debug */
1da177e4 LT	188	struct slave *first_slave;
	189	struct slave *curr_active_slave;
	190	struct slave *current_arp_slave;
	191	struct slave *primary_slave;
a549952a	192	bool force_primary;
1da177e4 LT	193	s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
	194	rwlock_t lock;
	195	rwlock_t curr_slave_lock;
1da177e4	196	s8 kill_timers;
1053f62c	197	s8 send_grat_arp;
305d552a	198	s8 send_unsol_na;
d90a162a	199	s8 setup_by_slave;
1da177e4 LT	200	#ifdef CONFIG_PROC_FS
	201	struct proc_dir_entry *proc_entry;
	202	char proc_file_name[IFNAMSIZ];
	203	#endif /* CONFIG_PROC_FS */
	204	struct list_head bond_list;
	205	struct dev_mc_list *mc_list;
a361c83c	206	int (xmit_hash_policy)(struct sk_buff , int);
d3bb52b0	207	__be32 master_ip;
1da177e4	208	u16 flags;
cf5f9044	209	u16 rr_tx_counter;
1da177e4 LT	210	struct ad_bond_info ad_info;
	211	struct alb_bond_info alb_info;
	212	struct bond_params params;
	213	struct list_head vlan_list;
	214	struct vlan_group *vlgrp;
f5b2b966	215	struct packet_type arp_mon_pt;
1b76b316 JV	216	struct workqueue_struct *wq;
	217	struct delayed_work mii_work;
	218	struct delayed_work arp_work;
	219	struct delayed_work alb_work;
	220	struct delayed_work ad_work;
305d552a BH	221	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	222	struct in6_addr master_ipv6;
	223	#endif
1da177e4 LT	224	};
	225
	226	/**
	227	* Returns NULL if the net_device does not belong to any of the bond's slaves
	228	*
	229	* Caller must hold bond lock for read
	230	*/
cceb904f	231	static inline struct slave bond_get_slave_by_dev(struct bonding bond, struct net_device *slave_dev)
1da177e4 LT	232	{
	233	struct slave *slave = NULL;
	234	int i;
	235
	236	bond_for_each_slave(bond, slave, i) {
	237	if (slave->dev == slave_dev) {
	238	break;
	239	}
	240	}
	241
	242	return slave;
	243	}
	244
cceb904f	245	static inline struct bonding bond_get_bond_by_slave(struct slave slave)
1da177e4 LT	246	{
	247	if (!slave \|\| !slave->dev->master) {
	248	return NULL;
	249	}
	250
454d7c9b	251	return (struct bonding *)netdev_priv(slave->dev->master);
1da177e4 LT	252	}
1da177e4 LT	253
58402054 HE	254	static inline bool bond_is_lb(const struct bonding *bond)
58402054 HE	255	{
8e95a202 JP	256	return (bond->params.mode == BOND_MODE_TLB \|\|
8e95a202 JP	257	bond->params.mode == BOND_MODE_ALB);
58402054 HE	258	}
58402054 HE	259
a549952a JP	260	#define BOND_PRI_RESELECT_ALWAYS 0
	261	#define BOND_PRI_RESELECT_BETTER 1
	262	#define BOND_PRI_RESELECT_FAILURE 2
	263
3915c1e8 JV	264	#define BOND_FOM_NONE 0
	265	#define BOND_FOM_ACTIVE 1
	266	#define BOND_FOM_FOLLOW 2
	267
f5b2b966 JV	268	#define BOND_ARP_VALIDATE_NONE 0
	269	#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
	270	#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
	271	#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE \| \
	272	BOND_ARP_VALIDATE_BACKUP)
	273
079ca7da AB	274	static inline int slave_do_arp_validate(struct bonding *bond,
079ca7da AB	275	struct slave *slave)
f5b2b966 JV	276	{
	277	return bond->params.arp_validate & (1 << slave->state);
	278	}
	279
079ca7da	280	static inline unsigned long slave_last_rx(struct bonding *bond,
f8a8ccd5	281	struct slave *slave)
f5b2b966 JV	282	{
	283	if (slave_do_arp_validate(bond, slave))
	284	return slave->last_arp_rx;
	285
	286	return slave->dev->last_rx;
	287	}
	288
cceb904f	289	static inline void bond_set_slave_inactive_flags(struct slave *slave)
1da177e4	290	{
454d7c9b	291	struct bonding *bond = netdev_priv(slave->dev->master);
ae63e808	292	if (!bond_is_lb(bond))
8f903c70 JV	293	slave->state = BOND_STATE_BACKUP;
8f903c70 JV	294	slave->dev->priv_flags \|= IFF_SLAVE_INACTIVE;
f5b2b966 JV	295	if (slave_do_arp_validate(bond, slave))
f5b2b966 JV	296	slave->dev->priv_flags \|= IFF_SLAVE_NEEDARP;
1da177e4 LT	297	}
1da177e4 LT	298
cceb904f	299	static inline void bond_set_slave_active_flags(struct slave *slave)
1da177e4 LT	300	{
1da177e4 LT	301	slave->state = BOND_STATE_ACTIVE;
f5b2b966	302	slave->dev->priv_flags &= ~(IFF_SLAVE_INACTIVE \| IFF_SLAVE_NEEDARP);
8f903c70 JV	303	}
	304
	305	static inline void bond_set_master_3ad_flags(struct bonding *bond)
	306	{
	307	bond->dev->priv_flags \|= IFF_MASTER_8023AD;
	308	}
	309
	310	static inline void bond_unset_master_3ad_flags(struct bonding *bond)
	311	{
	312	bond->dev->priv_flags &= ~IFF_MASTER_8023AD;
	313	}
	314
	315	static inline void bond_set_master_alb_flags(struct bonding *bond)
	316	{
	317	bond->dev->priv_flags \|= IFF_MASTER_ALB;
	318	}
	319
	320	static inline void bond_unset_master_alb_flags(struct bonding *bond)
	321	{
	322	bond->dev->priv_flags &= ~IFF_MASTER_ALB;
1da177e4 LT	323	}
	324
	325	struct vlan_entry bond_next_vlan(struct bonding bond, struct vlan_entry *curr);
	326	int bond_dev_queue_xmit(struct bonding bond, struct sk_buff skb, struct net_device *slave_dev);
ec87fd3b	327	int bond_create(struct net net, const char name);
d90a162a	328	int bond_release_and_destroy(struct net_device bond_dev, struct net_device slave_dev);
b76cdba9 MW	329	int bond_create_sysfs(void);
b76cdba9 MW	330	void bond_destroy_sysfs(void);
6151b3d4	331	void bond_prepare_sysfs_group(struct bonding *bond);
b76cdba9 MW	332	int bond_create_slave_symlinks(struct net_device master, struct net_device slave);
b76cdba9 MW	333	void bond_destroy_slave_symlinks(struct net_device master, struct net_device slave);
a77b5325 MW	334	int bond_enslave(struct net_device bond_dev, struct net_device slave_dev);
a77b5325 MW	335	int bond_release(struct net_device bond_dev, struct net_device slave_dev);
1b76b316 JV	336	void bond_mii_monitor(struct work_struct *);
	337	void bond_loadbalance_arp_mon(struct work_struct *);
	338	void bond_activebackup_arp_mon(struct work_struct *);
a77b5325	339	void bond_set_mode_ops(struct bonding *bond, int mode);
325dcf7a	340	int bond_parse_parm(const char mode_arg, const struct bond_parm_tbl tbl);
a77b5325 MW	341	void bond_select_active_slave(struct bonding *bond);
a77b5325 MW	342	void bond_change_active_slave(struct bonding bond, struct slave new_active);
f5b2b966 JV	343	void bond_register_arp(struct bonding *);
f5b2b966 JV	344	void bond_unregister_arp(struct bonding *);
1da177e4	345
ec87fd3b EB	346	struct bond_net {
	347	struct net * net; /* Associated network namespace */
	348	struct list_head dev_list;
	349	#ifdef CONFIG_PROC_FS
	350	struct proc_dir_entry * proc_dir;
	351	#endif
	352	};
	353
b2259672	354	/* exported from bond_main.c */
ec87fd3b	355	extern int bond_net_id;
e97fd7c6 HE	356	extern const struct bond_parm_tbl bond_lacp_tbl[];
	357	extern const struct bond_parm_tbl bond_mode_tbl[];
	358	extern const struct bond_parm_tbl xmit_hashtype_tbl[];
	359	extern const struct bond_parm_tbl arp_validate_tbl[];
	360	extern const struct bond_parm_tbl fail_over_mac_tbl[];
a549952a	361	extern const struct bond_parm_tbl pri_reselect_tbl[];
b06715b7 HE	362	extern struct bond_parm_tbl ad_select_tbl[];
b06715b7 HE	363
305d552a BH	364	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	365	void bond_send_unsolicited_na(struct bonding *bond);
	366	void bond_register_ipv6_notifier(void);
	367	void bond_unregister_ipv6_notifier(void);
	368	#else
	369	static inline void bond_send_unsolicited_na(struct bonding *bond)
	370	{
	371	return;
	372	}
	373	static inline void bond_register_ipv6_notifier(void)
	374	{
	375	return;
	376	}
	377	static inline void bond_unregister_ipv6_notifier(void)
	378	{
	379	return;
	380	}
	381	#endif
	382
1da177e4	383	#endif /* _LINUX_BONDING_H */