Orange Pi5 kernel

/*
 * 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 _NET_BONDING_H
#define _NET_BONDING_H
 
#include <linux/timer.h>
#include <linux/proc_fs.h>
#include <linux/if_bonding.h>
#include <linux/cpumask.h>
#include <linux/in6.h>
#include <linux/netpoll.h>
#include <linux/inetdevice.h>
#include <linux/etherdevice.h>
#include <linux/reciprocal_div.h>
#include <linux/if_link.h>
 
#include <net/bond_3ad.h>
#include <net/bond_alb.h>
#include <net/bond_options.h>
 
#define BOND_MAX_ARP_TARGETS	16
 
#define BOND_DEFAULT_MIIMON	100
 
#ifndef __long_aligned
#define __long_aligned __attribute__((aligned((sizeof(long)))))
#endif
 
#define slave_info(bond_dev, slave_dev, fmt, ...) \
<------>netdev_info(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
#define slave_warn(bond_dev, slave_dev, fmt, ...) \
<------>netdev_warn(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
#define slave_dbg(bond_dev, slave_dev, fmt, ...) \
<------>netdev_dbg(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
#define slave_err(bond_dev, slave_dev, fmt, ...) \
<------>netdev_err(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
 
#define BOND_MODE(bond) ((bond)->params.mode)
 
/* slave list primitives */
#define bond_slave_list(bond) (&(bond)->dev->adj_list.lower)
 
#define bond_has_slaves(bond) !list_empty(bond_slave_list(bond))
 
/* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
#define bond_first_slave(bond) \
<------>(bond_has_slaves(bond) ? \
<------><------>netdev_adjacent_get_private(bond_slave_list(bond)->next) : \
<------><------>NULL)
#define bond_last_slave(bond) \
<------>(bond_has_slaves(bond) ? \
<------><------>netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \
<------><------>NULL)
 
/* Caller must have rcu_read_lock */
#define bond_first_slave_rcu(bond) \
<------>netdev_lower_get_first_private_rcu(bond->dev)
 
#define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond))
#define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
 
/**
 * bond_for_each_slave - iterate over all slaves
 * @bond:	the bond holding this list
 * @pos:	current slave
 * @iter:	list_head * iterator
 *
 * Caller must hold RTNL
 */
#define bond_for_each_slave(bond, pos, iter) \
<------>netdev_for_each_lower_private((bond)->dev, pos, iter)
 
/* Caller must have rcu_read_lock */
#define bond_for_each_slave_rcu(bond, pos, iter) \
<------>netdev_for_each_lower_private_rcu((bond)->dev, pos, iter)
 
#define BOND_XFRM_FEATURES (NETIF_F_HW_ESP | NETIF_F_HW_ESP_TX_CSUM | \
<------><------><------>    NETIF_F_GSO_ESP)
 
#ifdef CONFIG_NET_POLL_CONTROLLER
extern atomic_t netpoll_block_tx;
 
static inline void block_netpoll_tx(void)
{
<------>atomic_inc(&netpoll_block_tx);
}
 
static inline void unblock_netpoll_tx(void)
{
<------>atomic_dec(&netpoll_block_tx);
}
 
static inline int is_netpoll_tx_blocked(struct net_device *dev)
{
<------>if (unlikely(netpoll_tx_running(dev)))
<------><------>return atomic_read(&netpoll_block_tx);
<------>return 0;
}
#else
#define block_netpoll_tx()
#define unblock_netpoll_tx()
#define is_netpoll_tx_blocked(dev) (0)
#endif
 
struct bond_params {
<------>int mode;
<------>int xmit_policy;
<------>int miimon;
<------>u8 num_peer_notif;
<------>int arp_interval;
<------>int arp_validate;
<------>int arp_all_targets;
<------>int use_carrier;
<------>int fail_over_mac;
<------>int updelay;
<------>int downdelay;
<------>int peer_notif_delay;
<------>int lacp_fast;
<------>unsigned int min_links;
<------>int ad_select;
<------>char primary[IFNAMSIZ];
<------>int primary_reselect;
<------>__be32 arp_targets[BOND_MAX_ARP_TARGETS];
<------>int tx_queues;
<------>int all_slaves_active;
<------>int resend_igmp;
<------>int lp_interval;
<------>int packets_per_slave;
<------>int tlb_dynamic_lb;
<------>struct reciprocal_value reciprocal_packets_per_slave;
<------>u16 ad_actor_sys_prio;
<------>u16 ad_user_port_key;
 
<------>/* 2 bytes of padding : see ether_addr_equal_64bits() */
<------>u8 ad_actor_system[ETH_ALEN + 2];
};
 
struct bond_parm_tbl {
<------>char *modename;
<------>int mode;
};
 
struct slave {
<------>struct net_device *dev; /* first - useful for panic debug */
<------>struct bonding *bond; /* our master */
<------>int    delay;
<------>/* all three in jiffies */
<------>unsigned long last_link_up;
<------>unsigned long last_rx;
<------>unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS];
<------>s8     link;		/* one of BOND_LINK_XXXX */
<------>s8     link_new_state;	/* one of BOND_LINK_XXXX */
<------>u8     backup:1,   /* indicates backup slave. Value corresponds with
<------><------><------>      BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
<------>       inactive:1, /* indicates inactive slave */
<------>       should_notify:1, /* indicates whether the state changed */
<------>       should_notify_link:1; /* indicates whether the link changed */
<------>u8     duplex;
<------>u32    original_mtu;
<------>u32    link_failure_count;
<------>u32    speed;
<------>u16    queue_id;
<------>u8     perm_hwaddr[MAX_ADDR_LEN];
<------>struct ad_slave_info *ad_info;
<------>struct tlb_slave_info tlb_info;
#ifdef CONFIG_NET_POLL_CONTROLLER
<------>struct netpoll *np;
#endif
<------>struct delayed_work notify_work;
<------>struct kobject kobj;
<------>struct rtnl_link_stats64 slave_stats;
};
 
static inline struct slave *to_slave(struct kobject *kobj)
{
<------>return container_of(kobj, struct slave, kobj);
}
 
struct bond_up_slave {
<------>unsigned int	count;
<------>struct rcu_head rcu;
<------>struct slave	*arr[];
};
 
/*
 * Link pseudo-state only used internally by monitors
 */
#define BOND_LINK_NOCHANGE -1
 
struct bond_ipsec {
<------>struct list_head list;
<------>struct xfrm_state *xs;
};
 
/*
 * Here are the locking policies for the two bonding locks:
 * Get rcu_read_lock when reading or RTNL when writing slave list.
 */
struct bonding {
<------>struct   net_device *dev; /* first - useful for panic debug */
<------>struct   slave __rcu *curr_active_slave;
<------>struct   slave __rcu *current_arp_slave;
<------>struct   slave __rcu *primary_slave;
<------>struct   bond_up_slave __rcu *usable_slaves;
<------>struct   bond_up_slave __rcu *all_slaves;
<------>bool     force_primary;
<------>s32      slave_cnt; /* never change this value outside the attach/detach wrappers */
<------>int     (*recv_probe)(const struct sk_buff *, struct bonding *,
<------><------><------>      struct slave *);
<------>/* mode_lock is used for mode-specific locking needs, currently used by:
<------> * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
<------> *                bond_3ad_state_machine_handler() concurrently and also
<------> *                the access to the state machine shared variables.
<------> * TLB mode (5) - to sync the use and modifications of its hash table
<------> * ALB mode (6) - to sync the use and modifications of its hash table
<------> */
<------>spinlock_t mode_lock;
<------>spinlock_t stats_lock;
<------>u8	 send_peer_notif;
<------>u8       igmp_retrans;
#ifdef CONFIG_PROC_FS
<------>struct   proc_dir_entry *proc_entry;
<------>char     proc_file_name[IFNAMSIZ];
#endif /* CONFIG_PROC_FS */
<------>struct   list_head bond_list;
<------>u32      rr_tx_counter;
<------>struct   ad_bond_info ad_info;
<------>struct   alb_bond_info alb_info;
<------>struct   bond_params params;
<------>struct   workqueue_struct *wq;
<------>struct   delayed_work mii_work;
<------>struct   delayed_work arp_work;
<------>struct   delayed_work alb_work;
<------>struct   delayed_work ad_work;
<------>struct   delayed_work mcast_work;
<------>struct   delayed_work slave_arr_work;
#ifdef CONFIG_DEBUG_FS
<------>/* debugging support via debugfs */
<------>struct	 dentry *debug_dir;
#endif /* CONFIG_DEBUG_FS */
<------>struct rtnl_link_stats64 bond_stats;
#ifdef CONFIG_XFRM_OFFLOAD
<------>struct list_head ipsec_list;
<------>/* protecting ipsec_list */
<------>spinlock_t ipsec_lock;
#endif /* CONFIG_XFRM_OFFLOAD */
};
 
#define bond_slave_get_rcu(dev) \
<------>((struct slave *) rcu_dereference(dev->rx_handler_data))
 
#define bond_slave_get_rtnl(dev) \
<------>((struct slave *) rtnl_dereference(dev->rx_handler_data))
 
void bond_queue_slave_event(struct slave *slave);
void bond_lower_state_changed(struct slave *slave);
 
struct bond_vlan_tag {
<------>__be16		vlan_proto;
<------>unsigned short	vlan_id;
};
 
/**
 * 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)
{
<------>return netdev_lower_dev_get_private(bond->dev, slave_dev);
}
 
static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
{
<------>return slave->bond;
}
 
static inline bool bond_should_override_tx_queue(struct bonding *bond)
{
<------>return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP ||
<------>       BOND_MODE(bond) == BOND_MODE_ROUNDROBIN;
}
 
static inline bool bond_is_lb(const struct bonding *bond)
{
<------>return BOND_MODE(bond) == BOND_MODE_TLB ||
<------>       BOND_MODE(bond) == BOND_MODE_ALB;
}
 
static inline bool bond_needs_speed_duplex(const struct bonding *bond)
{
<------>return BOND_MODE(bond) == BOND_MODE_8023AD || bond_is_lb(bond);
}
 
static inline bool bond_is_nondyn_tlb(const struct bonding *bond)
{
<------>return (bond_is_lb(bond) && bond->params.tlb_dynamic_lb == 0);
}
 
static inline bool bond_mode_can_use_xmit_hash(const struct bonding *bond)
{
<------>return (BOND_MODE(bond) == BOND_MODE_8023AD ||
<------><------>BOND_MODE(bond) == BOND_MODE_XOR ||
<------><------>BOND_MODE(bond) == BOND_MODE_TLB ||
<------><------>BOND_MODE(bond) == BOND_MODE_ALB);
}
 
static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond)
{
<------>return (BOND_MODE(bond) == BOND_MODE_8023AD ||
<------><------>BOND_MODE(bond) == BOND_MODE_XOR ||
<------><------>bond_is_nondyn_tlb(bond));
}
 
static inline bool bond_mode_uses_arp(int mode)
{
<------>return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB &&
<------>       mode != BOND_MODE_ALB;
}
 
static inline bool bond_mode_uses_primary(int mode)
{
<------>return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB ||
<------>       mode == BOND_MODE_ALB;
}
 
static inline bool bond_uses_primary(struct bonding *bond)
{
<------>return bond_mode_uses_primary(BOND_MODE(bond));
}
 
static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond)
{
<------>struct slave *slave = rcu_dereference(bond->curr_active_slave);
 
<------>return bond_uses_primary(bond) && slave ? slave->dev : NULL;
}
 
static inline bool bond_slave_is_up(struct slave *slave)
{
<------>return netif_running(slave->dev) && netif_carrier_ok(slave->dev);
}
 
static inline void bond_set_active_slave(struct slave *slave)
{
<------>if (slave->backup) {
<------><------>slave->backup = 0;
<------><------>bond_queue_slave_event(slave);
<------><------>bond_lower_state_changed(slave);
<------>}
}
 
static inline void bond_set_backup_slave(struct slave *slave)
{
<------>if (!slave->backup) {
<------><------>slave->backup = 1;
<------><------>bond_queue_slave_event(slave);
<------><------>bond_lower_state_changed(slave);
<------>}
}
 
static inline void bond_set_slave_state(struct slave *slave,
<------><------><------><------><------>int slave_state, bool notify)
{
<------>if (slave->backup == slave_state)
<------><------>return;
 
<------>slave->backup = slave_state;
<------>if (notify) {
<------><------>bond_lower_state_changed(slave);
<------><------>bond_queue_slave_event(slave);
<------><------>slave->should_notify = 0;
<------>} else {
<------><------>if (slave->should_notify)
<------><------><------>slave->should_notify = 0;
<------><------>else
<------><------><------>slave->should_notify = 1;
<------>}
}
 
static inline void bond_slave_state_change(struct bonding *bond)
{
<------>struct list_head *iter;
<------>struct slave *tmp;
 
<------>bond_for_each_slave(bond, tmp, iter) {
<------><------>if (tmp->link == BOND_LINK_UP)
<------><------><------>bond_set_active_slave(tmp);
<------><------>else if (tmp->link == BOND_LINK_DOWN)
<------><------><------>bond_set_backup_slave(tmp);
<------>}
}
 
static inline void bond_slave_state_notify(struct bonding *bond)
{
<------>struct list_head *iter;
<------>struct slave *tmp;
 
<------>bond_for_each_slave(bond, tmp, iter) {
<------><------>if (tmp->should_notify) {
<------><------><------>bond_lower_state_changed(tmp);
<------><------><------>tmp->should_notify = 0;
<------><------>}
<------>}
}
 
static inline int bond_slave_state(struct slave *slave)
{
<------>return slave->backup;
}
 
static inline bool bond_is_active_slave(struct slave *slave)
{
<------>return !bond_slave_state(slave);
}
 
static inline bool bond_slave_can_tx(struct slave *slave)
{
<------>return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP &&
<------>       bond_is_active_slave(slave);
}
 
static inline bool bond_is_active_slave_dev(const struct net_device *slave_dev)
{
<------>struct slave *slave;
<------>bool active;
 
<------>rcu_read_lock();
<------>slave = bond_slave_get_rcu(slave_dev);
<------>active = bond_is_active_slave(slave);
<------>rcu_read_unlock();
 
<------>return active;
}
 
static inline void bond_hw_addr_copy(u8 *dst, const u8 *src, unsigned int len)
{
<------>if (len == ETH_ALEN) {
<------><------>ether_addr_copy(dst, src);
<------><------>return;
<------>}
 
<------>memcpy(dst, src, len);
}
 
#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_TARGETS_ANY		0
#define BOND_ARP_TARGETS_ALL		1
 
#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)
#define BOND_ARP_FILTER			(BOND_ARP_VALIDATE_ALL + 1)
#define BOND_ARP_FILTER_ACTIVE		(BOND_ARP_VALIDATE_ACTIVE | \
<------><------><------><------><------> BOND_ARP_FILTER)
#define BOND_ARP_FILTER_BACKUP		(BOND_ARP_VALIDATE_BACKUP | \
<------><------><------><------><------> BOND_ARP_FILTER)
 
#define BOND_SLAVE_NOTIFY_NOW		true
#define BOND_SLAVE_NOTIFY_LATER		false
 
static inline int slave_do_arp_validate(struct bonding *bond,
<------><------><------><------><------>struct slave *slave)
{
<------>return bond->params.arp_validate & (1 << bond_slave_state(slave));
}
 
static inline int slave_do_arp_validate_only(struct bonding *bond)
{
<------>return bond->params.arp_validate & BOND_ARP_FILTER;
}
 
static inline int bond_is_ip_target_ok(__be32 addr)
{
<------>return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr);
}
 
/* Get the oldest arp which we've received on this slave for bond's
 * arp_targets.
 */
static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond,
<------><------><------><------><------><------>       struct slave *slave)
{
<------>int i = 1;
<------>unsigned long ret = slave->target_last_arp_rx[0];
 
<------>for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++)
<------><------>if (time_before(slave->target_last_arp_rx[i], ret))
<------><------><------>ret = slave->target_last_arp_rx[i];
 
<------>return ret;
}
 
static inline unsigned long slave_last_rx(struct bonding *bond,
<------><------><------><------><------>struct slave *slave)
{
<------>if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL)
<------><------>return slave_oldest_target_arp_rx(bond, slave);
 
<------>return slave->last_rx;
}
 
#ifdef CONFIG_NET_POLL_CONTROLLER
static inline netdev_tx_t bond_netpoll_send_skb(const struct slave *slave,
<------><------><------><------><------> struct sk_buff *skb)
{
<------>return netpoll_send_skb(slave->np, skb);
}
#else
static inline netdev_tx_t bond_netpoll_send_skb(const struct slave *slave,
<------><------><------><------><------> struct sk_buff *skb)
{
<------>BUG();
<------>return NETDEV_TX_OK;
}
#endif
 
static inline void bond_set_slave_inactive_flags(struct slave *slave,
<------><------><------><------><------><------> bool notify)
{
<------>if (!bond_is_lb(slave->bond))
<------><------>bond_set_slave_state(slave, BOND_STATE_BACKUP, notify);
<------>if (!slave->bond->params.all_slaves_active)
<------><------>slave->inactive = 1;
}
 
static inline void bond_set_slave_active_flags(struct slave *slave,
<------><------><------><------><------>       bool notify)
{
<------>bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify);
<------>slave->inactive = 0;
}
 
static inline bool bond_is_slave_inactive(struct slave *slave)
{
<------>return slave->inactive;
}
 
static inline void bond_propose_link_state(struct slave *slave, int state)
{
<------>slave->link_new_state = state;
}
 
static inline void bond_commit_link_state(struct slave *slave, bool notify)
{
<------>if (slave->link_new_state == BOND_LINK_NOCHANGE)
<------><------>return;
 
<------>slave->link = slave->link_new_state;
<------>if (notify) {
<------><------>bond_queue_slave_event(slave);
<------><------>bond_lower_state_changed(slave);
<------><------>slave->should_notify_link = 0;
<------>} else {
<------><------>if (slave->should_notify_link)
<------><------><------>slave->should_notify_link = 0;
<------><------>else
<------><------><------>slave->should_notify_link = 1;
<------>}
}
 
static inline void bond_set_slave_link_state(struct slave *slave, int state,
<------><------><------><------><------>     bool notify)
{
<------>bond_propose_link_state(slave, state);
<------>bond_commit_link_state(slave, notify);
}
 
static inline void bond_slave_link_notify(struct bonding *bond)
{
<------>struct list_head *iter;
<------>struct slave *tmp;
 
<------>bond_for_each_slave(bond, tmp, iter) {
<------><------>if (tmp->should_notify_link) {
<------><------><------>bond_queue_slave_event(tmp);
<------><------><------>bond_lower_state_changed(tmp);
<------><------><------>tmp->should_notify_link = 0;
<------><------>}
<------>}
}
 
static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local)
{
<------>struct in_device *in_dev;
<------>__be32 addr = 0;
 
<------>rcu_read_lock();
<------>in_dev = __in_dev_get_rcu(dev);
 
<------>if (in_dev)
<------><------>addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local,
<------><------><------><------><------> RT_SCOPE_HOST);
<------>rcu_read_unlock();
<------>return addr;
}
 
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
<------>struct class_attribute	class_attr_bonding_masters;
};
 
int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave);
netdev_tx_t 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_create_sysfs(struct bond_net *net);
void bond_destroy_sysfs(struct bond_net *net);
void bond_prepare_sysfs_group(struct bonding *bond);
int bond_sysfs_slave_add(struct slave *slave);
void bond_sysfs_slave_del(struct slave *slave);
int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
<------><------> struct netlink_ext_ack *extack);
int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb);
int bond_set_carrier(struct bonding *bond);
void bond_select_active_slave(struct bonding *bond);
void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
void bond_create_debugfs(void);
void bond_destroy_debugfs(void);
void bond_debug_register(struct bonding *bond);
void bond_debug_unregister(struct bonding *bond);
void bond_debug_reregister(struct bonding *bond);
const char *bond_mode_name(int mode);
void bond_setup(struct net_device *bond_dev);
unsigned int bond_get_num_tx_queues(void);
int bond_netlink_init(void);
void bond_netlink_fini(void);
struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
const char *bond_slave_link_status(s8 link);
struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev,
<------><------><------><------><------>      struct net_device *end_dev,
<------><------><------><------><------>      int level);
int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave);
void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay);
void bond_work_init_all(struct bonding *bond);
 
#ifdef CONFIG_PROC_FS
void bond_create_proc_entry(struct bonding *bond);
void bond_remove_proc_entry(struct bonding *bond);
void bond_create_proc_dir(struct bond_net *bn);
void bond_destroy_proc_dir(struct bond_net *bn);
#else
static inline void bond_create_proc_entry(struct bonding *bond)
{
}
 
static inline void bond_remove_proc_entry(struct bonding *bond)
{
}
 
static inline void bond_create_proc_dir(struct bond_net *bn)
{
}
 
static inline void bond_destroy_proc_dir(struct bond_net *bn)
{
}
#endif
 
static inline struct slave *bond_slave_has_mac(struct bonding *bond,
<------><------><------><------><------>       const u8 *mac)
{
<------>struct list_head *iter;
<------>struct slave *tmp;
 
<------>bond_for_each_slave(bond, tmp, iter)
<------><------>if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
<------><------><------>return tmp;
 
<------>return NULL;
}
 
/* Caller must hold rcu_read_lock() for read */
static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond,
<------><------><------><------><------>       const u8 *mac)
{
<------>struct list_head *iter;
<------>struct slave *tmp;
 
<------>bond_for_each_slave_rcu(bond, tmp, iter)
<------><------>if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
<------><------><------>return tmp;
 
<------>return NULL;
}
 
/* Caller must hold rcu_read_lock() for read */
static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac)
{
<------>struct list_head *iter;
<------>struct slave *tmp;
<------>struct netdev_hw_addr *ha;
 
<------>bond_for_each_slave_rcu(bond, tmp, iter)
<------><------>if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
<------><------><------>return true;
 
<------>if (netdev_uc_empty(bond->dev))
<------><------>return false;
 
<------>netdev_for_each_uc_addr(ha, bond->dev)
<------><------>if (ether_addr_equal_64bits(mac, ha->addr))
<------><------><------>return true;
 
<------>return false;
}
 
/* Check if the ip is present in arp ip list, or first free slot if ip == 0
 * Returns -1 if not found, index if found
 */
static inline int bond_get_targets_ip(__be32 *targets, __be32 ip)
{
<------>int i;
 
<------>for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
<------><------>if (targets[i] == ip)
<------><------><------>return i;
<------><------>else if (targets[i] == 0)
<------><------><------>break;
 
<------>return -1;
}
 
/* exported from bond_main.c */
extern unsigned int bond_net_id;
extern const struct bond_parm_tbl bond_lacp_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 arp_all_targets_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[];
 
/* exported from bond_netlink.c */
extern struct rtnl_link_ops bond_link_ops;
 
/* exported from bond_sysfs_slave.c */
extern const struct sysfs_ops slave_sysfs_ops;
 
static inline netdev_tx_t bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
{
<------>atomic_long_inc(&dev->tx_dropped);
<------>dev_kfree_skb_any(skb);
<------>return NET_XMIT_DROP;
}
 
#endif /* _NET_BONDING_H */