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CommitLineData
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
1ef8019b
DM
15#ifndef _NET_BONDING_H
16#define _NET_BONDING_H
1da177e4
LT
17
18#include <linux/timer.h>
19#include <linux/proc_fs.h>
20#include <linux/if_bonding.h>
e843fa50 21#include <linux/cpumask.h>
305d552a 22#include <linux/in6.h>
8a8efa22 23#include <linux/netpoll.h>
eaddcd76 24#include <linux/inetdevice.h>
567b871e 25#include <linux/etherdevice.h>
809fa972 26#include <linux/reciprocal_div.h>
5f0c5f73 27#include <linux/if_link.h>
809fa972 28
1ef8019b
DM
29#include <net/bond_3ad.h>
30#include <net/bond_alb.h>
31#include <net/bond_options.h>
1da177e4 32
1da177e4
LT
33#define BOND_MAX_ARP_TARGETS 16
34
fe9d04af 35#define BOND_DEFAULT_MIIMON 100
36
f87fda00
ED
37#ifndef __long_aligned
38#define __long_aligned __attribute__((aligned((sizeof(long)))))
39#endif
1da177e4 40
01844098
VF
41#define BOND_MODE(bond) ((bond)->params.mode)
42
dec1e90e 43/* slave list primitives */
5a52405a
VF
44#define bond_slave_list(bond) (&(bond)->dev->adj_list.lower)
45
46#define bond_has_slaves(bond) !list_empty(bond_slave_list(bond))
0965a1f3 47
dec1e90e 48/* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
49#define bond_first_slave(bond) \
5a52405a
VF
50 (bond_has_slaves(bond) ? \
51 netdev_adjacent_get_private(bond_slave_list(bond)->next) : \
52 NULL)
dec1e90e 53#define bond_last_slave(bond) \
5a52405a
VF
54 (bond_has_slaves(bond) ? \
55 netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \
56 NULL)
dec1e90e 57
e001bfad 58/* Caller must have rcu_read_lock */
59#define bond_first_slave_rcu(bond) \
60 netdev_lower_get_first_private_rcu(bond->dev)
61
5a52405a
VF
62#define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond))
63#define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
dec1e90e 64
1da177e4 65/**
dec1e90e 66 * bond_for_each_slave - iterate over all slaves
67 * @bond: the bond holding this list
68 * @pos: current slave
9caff1e7 69 * @iter: list_head * iterator
1da177e4 70 *
87163ef9 71 * Caller must hold RTNL
1da177e4 72 */
9caff1e7
VF
73#define bond_for_each_slave(bond, pos, iter) \
74 netdev_for_each_lower_private((bond)->dev, pos, iter)
1da177e4 75
278b2083 76/* Caller must have rcu_read_lock */
9caff1e7
VF
77#define bond_for_each_slave_rcu(bond, pos, iter) \
78 netdev_for_each_lower_private_rcu((bond)->dev, pos, iter)
278b2083 79
e843fa50 80#ifdef CONFIG_NET_POLL_CONTROLLER
fb4fa76a 81extern atomic_t netpoll_block_tx;
e843fa50
NH
82
83static inline void block_netpoll_tx(void)
84{
fb4fa76a 85 atomic_inc(&netpoll_block_tx);
e843fa50
NH
86}
87
88static inline void unblock_netpoll_tx(void)
89{
fb4fa76a 90 atomic_dec(&netpoll_block_tx);
e843fa50
NH
91}
92
93static inline int is_netpoll_tx_blocked(struct net_device *dev)
94{
080e4130 95 if (unlikely(netpoll_tx_running(dev)))
fb4fa76a 96 return atomic_read(&netpoll_block_tx);
e843fa50
NH
97 return 0;
98}
99#else
100#define block_netpoll_tx()
101#define unblock_netpoll_tx()
102#define is_netpoll_tx_blocked(dev) (0)
103#endif
104
1da177e4
LT
105struct bond_params {
106 int mode;
169a3e66 107 int xmit_policy;
1da177e4 108 int miimon;
ad246c99 109 u8 num_peer_notif;
1da177e4 110 int arp_interval;
f5b2b966 111 int arp_validate;
8599b52e 112 int arp_all_targets;
1da177e4 113 int use_carrier;
dd957c57 114 int fail_over_mac;
1da177e4
LT
115 int updelay;
116 int downdelay;
117 int lacp_fast;
655f8919 118 unsigned int min_links;
fd989c83 119 int ad_select;
1da177e4 120 char primary[IFNAMSIZ];
a549952a 121 int primary_reselect;
d3bb52b0 122 __be32 arp_targets[BOND_MAX_ARP_TARGETS];
bb1d9123 123 int tx_queues;
ebd8e497 124 int all_slaves_active;
c2952c31 125 int resend_igmp;
7eacd038 126 int lp_interval;
73958329 127 int packets_per_slave;
e9f0fb88 128 int tlb_dynamic_lb;
809fa972 129 struct reciprocal_value reciprocal_packets_per_slave;
6791e466 130 u16 ad_actor_sys_prio;
d22a5fc0 131 u16 ad_user_port_key;
f87fda00
ED
132
133 /* 2 bytes of padding : see ether_addr_equal_64bits() */
134 u8 ad_actor_system[ETH_ALEN + 2];
1da177e4
LT
135};
136
12479f9a
MW
137struct bond_parm_tbl {
138 char *modename;
139 int mode;
140};
141
1da177e4 142struct slave {
e944ef79 143 struct net_device *dev; /* first - useful for panic debug */
35d48903 144 struct bonding *bond; /* our master */
8bb5f96b 145 int delay;
8e603460
VF
146 /* all three in jiffies */
147 unsigned long last_link_up;
49f17de7 148 unsigned long last_rx;
8599b52e 149 unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS];
f307668b
MB
150 s8 link; /* one of BOND_LINK_XXXX */
151 s8 link_new_state; /* one of BOND_LINK_XXXX */
b2220cad 152 s8 new_link;
2d7011ca
JP
153 u8 backup:1, /* indicates backup slave. Value corresponds with
154 BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
5e5b0665 155 inactive:1, /* indicates inactive slave */
5d397061
JP
156 should_notify:1, /* indicates whether the state changed */
157 should_notify_link:1; /* indicates whether the link changed */
5d30530e 158 u8 duplex;
3158bf7d 159 u32 original_mtu;
1da177e4 160 u32 link_failure_count;
5d30530e 161 u32 speed;
bb1d9123 162 u16 queue_id;
faeeb317 163 u8 perm_hwaddr[MAX_ADDR_LEN];
3fdddd85 164 struct ad_slave_info *ad_info;
1da177e4 165 struct tlb_slave_info tlb_info;
8a8efa22
AW
166#ifdef CONFIG_NET_POLL_CONTROLLER
167 struct netpoll *np;
168#endif
c153c92e 169 struct delayed_work notify_work;
07699f9a 170 struct kobject kobj;
5f0c5f73 171 struct rtnl_link_stats64 slave_stats;
1da177e4
LT
172};
173
ee637714
MB
174struct bond_up_slave {
175 unsigned int count;
176 struct rcu_head rcu;
177 struct slave *arr[0];
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:
1c72cfdc 187 * Get rcu_read_lock when reading or RTNL when writing slave list.
1da177e4
LT
188 */
189struct bonding {
e944ef79 190 struct net_device *dev; /* first - useful for panic debug */
4740d638 191 struct slave __rcu *curr_active_slave;
85741718 192 struct slave __rcu *current_arp_slave;
059b47e8 193 struct slave __rcu *primary_slave;
ee637714 194 struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */
a549952a 195 bool force_primary;
c68f7c32 196 u32 nest_level;
1da177e4 197 s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
de063b70
ED
198 int (*recv_probe)(const struct sk_buff *, struct bonding *,
199 struct slave *);
8c0bc550
NA
200 /* mode_lock is used for mode-specific locking needs, currently used by:
201 * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
547942ca
NA
202 * bond_3ad_state_machine_handler() concurrently and also
203 * the access to the state machine shared variables.
8c0bc550
NA
204 * TLB mode (5) - to sync the use and modifications of its hash table
205 * ALB mode (6) - to sync the use and modifications of its hash table
206 */
b7435628 207 spinlock_t mode_lock;
fe30937b 208 spinlock_t stats_lock;
ad246c99 209 u8 send_peer_notif;
4f5474e7 210 u8 igmp_retrans;
1da177e4
LT
211#ifdef CONFIG_PROC_FS
212 struct proc_dir_entry *proc_entry;
213 char proc_file_name[IFNAMSIZ];
214#endif /* CONFIG_PROC_FS */
215 struct list_head bond_list;
73958329 216 u32 rr_tx_counter;
1da177e4
LT
217 struct ad_bond_info ad_info;
218 struct alb_bond_info alb_info;
219 struct bond_params params;
1b76b316
JV
220 struct workqueue_struct *wq;
221 struct delayed_work mii_work;
222 struct delayed_work arp_work;
223 struct delayed_work alb_work;
224 struct delayed_work ad_work;
5a37e8ca 225 struct delayed_work mcast_work;
ee637714 226 struct delayed_work slave_arr_work;
f073c7ca 227#ifdef CONFIG_DEBUG_FS
02582e9b 228 /* debugging support via debugfs */
f073c7ca
TI
229 struct dentry *debug_dir;
230#endif /* CONFIG_DEBUG_FS */
5f0c5f73 231 struct rtnl_link_stats64 bond_stats;
1da177e4
LT
232};
233
f1c1775a
JP
234#define bond_slave_get_rcu(dev) \
235 ((struct slave *) rcu_dereference(dev->rx_handler_data))
236
471cb5a3
JP
237#define bond_slave_get_rtnl(dev) \
238 ((struct slave *) rtnl_dereference(dev->rx_handler_data))
239
69e61133 240void bond_queue_slave_event(struct slave *slave);
f7c7eb7f 241void bond_lower_state_changed(struct slave *slave);
69e61133 242
fbd929f2 243struct bond_vlan_tag {
244 __be16 vlan_proto;
245 unsigned short vlan_id;
246};
247
1da177e4
LT
248/**
249 * Returns NULL if the net_device does not belong to any of the bond's slaves
250 *
251 * Caller must hold bond lock for read
252 */
4ec952b8 253static inline struct slave *bond_get_slave_by_dev(struct bonding *bond,
254 struct net_device *slave_dev)
1da177e4 255{
46bb4807 256 return netdev_lower_dev_get_private(bond->dev, slave_dev);
1da177e4
LT
257}
258
cceb904f 259static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
1da177e4 260{
471cb5a3 261 return slave->bond;
1da177e4
LT
262}
263
d1e2e5cd
VF
264static inline bool bond_should_override_tx_queue(struct bonding *bond)
265{
01844098
VF
266 return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP ||
267 BOND_MODE(bond) == BOND_MODE_ROUNDROBIN;
d1e2e5cd
VF
268}
269
58402054
HE
270static inline bool bond_is_lb(const struct bonding *bond)
271{
01844098
VF
272 return BOND_MODE(bond) == BOND_MODE_TLB ||
273 BOND_MODE(bond) == BOND_MODE_ALB;
58402054
HE
274}
275
ad729bc9
AB
276static inline bool bond_needs_speed_duplex(const struct bonding *bond)
277{
278 return BOND_MODE(bond) == BOND_MODE_8023AD || bond_is_lb(bond);
279}
280
6b794c1c
MB
281static inline bool bond_is_nondyn_tlb(const struct bonding *bond)
282{
283 return (BOND_MODE(bond) == BOND_MODE_TLB) &&
284 (bond->params.tlb_dynamic_lb == 0);
285}
286
d7021325
MB
287static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond)
288{
289 return (BOND_MODE(bond) == BOND_MODE_8023AD ||
290 BOND_MODE(bond) == BOND_MODE_XOR ||
291 bond_is_nondyn_tlb(bond));
292}
293
267bed77
VF
294static inline bool bond_mode_uses_arp(int mode)
295{
296 return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB &&
297 mode != BOND_MODE_ALB;
298}
299
ec0865a9
VF
300static inline bool bond_mode_uses_primary(int mode)
301{
302 return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB ||
303 mode == BOND_MODE_ALB;
304}
305
306static inline bool bond_uses_primary(struct bonding *bond)
307{
01844098 308 return bond_mode_uses_primary(BOND_MODE(bond));
ec0865a9
VF
309}
310
e9998695
MB
311static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond)
312{
313 struct slave *slave = rcu_dereference(bond->curr_active_slave);
314
315 return bond_uses_primary(bond) && slave ? slave->dev : NULL;
316}
317
b6adc610
VF
318static inline bool bond_slave_is_up(struct slave *slave)
319{
320 return netif_running(slave->dev) && netif_carrier_ok(slave->dev);
321}
322
e30bc066
JP
323static inline void bond_set_active_slave(struct slave *slave)
324{
1d3ee88a 325 if (slave->backup) {
326 slave->backup = 0;
69e61133 327 bond_queue_slave_event(slave);
f7c7eb7f 328 bond_lower_state_changed(slave);
1d3ee88a 329 }
e30bc066
JP
330}
331
332static inline void bond_set_backup_slave(struct slave *slave)
333{
1d3ee88a 334 if (!slave->backup) {
335 slave->backup = 1;
69e61133 336 bond_queue_slave_event(slave);
f7c7eb7f 337 bond_lower_state_changed(slave);
1d3ee88a 338 }
e30bc066
JP
339}
340
5e5b0665 341static inline void bond_set_slave_state(struct slave *slave,
342 int slave_state, bool notify)
343{
344 if (slave->backup == slave_state)
345 return;
346
347 slave->backup = slave_state;
348 if (notify) {
f7c7eb7f 349 bond_lower_state_changed(slave);
69e61133 350 bond_queue_slave_event(slave);
5e5b0665 351 slave->should_notify = 0;
352 } else {
353 if (slave->should_notify)
354 slave->should_notify = 0;
355 else
356 slave->should_notify = 1;
357 }
358}
359
6fde8f03
DT
360static inline void bond_slave_state_change(struct bonding *bond)
361{
362 struct list_head *iter;
363 struct slave *tmp;
364
365 bond_for_each_slave(bond, tmp, iter) {
366 if (tmp->link == BOND_LINK_UP)
367 bond_set_active_slave(tmp);
368 else if (tmp->link == BOND_LINK_DOWN)
369 bond_set_backup_slave(tmp);
370 }
371}
372
b0929915 373static inline void bond_slave_state_notify(struct bonding *bond)
374{
375 struct list_head *iter;
376 struct slave *tmp;
377
378 bond_for_each_slave(bond, tmp, iter) {
379 if (tmp->should_notify) {
f7c7eb7f 380 bond_lower_state_changed(tmp);
b0929915 381 tmp->should_notify = 0;
382 }
383 }
384}
385
e30bc066
JP
386static inline int bond_slave_state(struct slave *slave)
387{
388 return slave->backup;
389}
390
391static inline bool bond_is_active_slave(struct slave *slave)
392{
393 return !bond_slave_state(slave);
394}
395
891ab54d
VF
396static inline bool bond_slave_can_tx(struct slave *slave)
397{
398 return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP &&
399 bond_is_active_slave(slave);
400}
401
faeeb317
JW
402static inline void bond_hw_addr_copy(u8 *dst, const u8 *src, unsigned int len)
403{
404 if (len == ETH_ALEN) {
405 ether_addr_copy(dst, src);
406 return;
407 }
408
409 memcpy(dst, src, len);
410}
411
a549952a
JP
412#define BOND_PRI_RESELECT_ALWAYS 0
413#define BOND_PRI_RESELECT_BETTER 1
414#define BOND_PRI_RESELECT_FAILURE 2
415
3915c1e8
JV
416#define BOND_FOM_NONE 0
417#define BOND_FOM_ACTIVE 1
418#define BOND_FOM_FOLLOW 2
419
8599b52e
VF
420#define BOND_ARP_TARGETS_ANY 0
421#define BOND_ARP_TARGETS_ALL 1
422
f5b2b966
JV
423#define BOND_ARP_VALIDATE_NONE 0
424#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
425#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
426#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \
427 BOND_ARP_VALIDATE_BACKUP)
896149ff
VF
428#define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1)
429#define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \
430 BOND_ARP_FILTER)
431#define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \
432 BOND_ARP_FILTER)
f5b2b966 433
5e5b0665 434#define BOND_SLAVE_NOTIFY_NOW true
435#define BOND_SLAVE_NOTIFY_LATER false
436
079ca7da
AB
437static inline int slave_do_arp_validate(struct bonding *bond,
438 struct slave *slave)
f5b2b966 439{
e30bc066 440 return bond->params.arp_validate & (1 << bond_slave_state(slave));
f5b2b966
JV
441}
442
bedabf90 443static inline int slave_do_arp_validate_only(struct bonding *bond)
896149ff
VF
444{
445 return bond->params.arp_validate & BOND_ARP_FILTER;
446}
447
2807a9fe
VF
448static inline int bond_is_ip_target_ok(__be32 addr)
449{
450 return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr);
451}
452
8599b52e
VF
453/* Get the oldest arp which we've received on this slave for bond's
454 * arp_targets.
455 */
456static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond,
457 struct slave *slave)
458{
459 int i = 1;
460 unsigned long ret = slave->target_last_arp_rx[0];
461
462 for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++)
463 if (time_before(slave->target_last_arp_rx[i], ret))
464 ret = slave->target_last_arp_rx[i];
465
466 return ret;
467}
468
079ca7da 469static inline unsigned long slave_last_rx(struct bonding *bond,
f8a8ccd5 470 struct slave *slave)
f5b2b966 471{
9f242738
VF
472 if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL)
473 return slave_oldest_target_arp_rx(bond, slave);
f5b2b966 474
49f17de7 475 return slave->last_rx;
f5b2b966
JV
476}
477
8a8efa22
AW
478#ifdef CONFIG_NET_POLL_CONTROLLER
479static inline void bond_netpoll_send_skb(const struct slave *slave,
480 struct sk_buff *skb)
481{
482 struct netpoll *np = slave->np;
483
484 if (np)
485 netpoll_send_skb(np, skb);
486}
487#else
488static inline void bond_netpoll_send_skb(const struct slave *slave,
489 struct sk_buff *skb)
490{
491}
492#endif
493
5e5b0665 494static inline void bond_set_slave_inactive_flags(struct slave *slave,
495 bool notify)
1da177e4 496{
471cb5a3 497 if (!bond_is_lb(slave->bond))
5e5b0665 498 bond_set_slave_state(slave, BOND_STATE_BACKUP, notify);
471cb5a3 499 if (!slave->bond->params.all_slaves_active)
2d7011ca 500 slave->inactive = 1;
1da177e4
LT
501}
502
5e5b0665 503static inline void bond_set_slave_active_flags(struct slave *slave,
504 bool notify)
1da177e4 505{
5e5b0665 506 bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify);
2d7011ca
JP
507 slave->inactive = 0;
508}
509
510static inline bool bond_is_slave_inactive(struct slave *slave)
511{
512 return slave->inactive;
1da177e4
LT
513}
514
f307668b
MB
515static inline void bond_propose_link_state(struct slave *slave, int state)
516{
517 slave->link_new_state = state;
518}
519
520static inline void bond_commit_link_state(struct slave *slave, bool notify)
69a2338e 521{
f307668b 522 if (slave->link == slave->link_new_state)
5d397061
JP
523 return;
524
f307668b 525 slave->link = slave->link_new_state;
5d397061
JP
526 if (notify) {
527 bond_queue_slave_event(slave);
f7c7eb7f 528 bond_lower_state_changed(slave);
5d397061
JP
529 slave->should_notify_link = 0;
530 } else {
531 if (slave->should_notify_link)
532 slave->should_notify_link = 0;
533 else
534 slave->should_notify_link = 1;
535 }
536}
537
f307668b
MB
538static inline void bond_set_slave_link_state(struct slave *slave, int state,
539 bool notify)
540{
541 bond_propose_link_state(slave, state);
542 bond_commit_link_state(slave, notify);
543}
544
5d397061
JP
545static inline void bond_slave_link_notify(struct bonding *bond)
546{
547 struct list_head *iter;
548 struct slave *tmp;
549
550 bond_for_each_slave(bond, tmp, iter) {
551 if (tmp->should_notify_link) {
552 bond_queue_slave_event(tmp);
f7c7eb7f 553 bond_lower_state_changed(tmp);
5d397061
JP
554 tmp->should_notify_link = 0;
555 }
556 }
69a2338e
MS
557}
558
eaddcd76
AG
559static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local)
560{
561 struct in_device *in_dev;
562 __be32 addr = 0;
563
564 rcu_read_lock();
565 in_dev = __in_dev_get_rcu(dev);
566
567 if (in_dev)
b601fa19
ND
568 addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local,
569 RT_SCOPE_HOST);
eaddcd76
AG
570 rcu_read_unlock();
571 return addr;
572}
573
31924325 574struct bond_net {
575 struct net *net; /* Associated network namespace */
576 struct list_head dev_list;
577#ifdef CONFIG_PROC_FS
578 struct proc_dir_entry *proc_dir;
579#endif
580 struct class_attribute class_attr_bonding_masters;
581};
4c22400a 582
5bb9e0b5 583int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave);
d316dedd 584void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
ec87fd3b 585int bond_create(struct net *net, const char *name);
4c22400a
EB
586int bond_create_sysfs(struct bond_net *net);
587void bond_destroy_sysfs(struct bond_net *net);
6151b3d4 588void bond_prepare_sysfs_group(struct bonding *bond);
07699f9a 589int bond_sysfs_slave_add(struct slave *slave);
590void bond_sysfs_slave_del(struct slave *slave);
33eaf2a6
DA
591int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
592 struct netlink_ext_ack *extack);
a77b5325 593int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
ee62e868 594u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb);
2477bc9a 595int bond_set_carrier(struct bonding *bond);
a77b5325
MW
596void bond_select_active_slave(struct bonding *bond);
597void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
f073c7ca
TI
598void bond_create_debugfs(void);
599void bond_destroy_debugfs(void);
600void bond_debug_register(struct bonding *bond);
601void bond_debug_unregister(struct bonding *bond);
602void bond_debug_reregister(struct bonding *bond);
d30ee670 603const char *bond_mode_name(int mode);
0a2a78c4
JP
604void bond_setup(struct net_device *bond_dev);
605unsigned int bond_get_num_tx_queues(void);
606int bond_netlink_init(void);
607void bond_netlink_fini(void);
752d48b5 608struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
07699f9a 609const char *bond_slave_link_status(s8 link);
3e403a77
VF
610struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev,
611 struct net_device *end_dev,
612 int level);
ee637714
MB
613int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave);
614void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay);
ea8ffc08 615void bond_work_init_all(struct bonding *bond);
1da177e4 616
bd33acc3
AW
617#ifdef CONFIG_PROC_FS
618void bond_create_proc_entry(struct bonding *bond);
619void bond_remove_proc_entry(struct bonding *bond);
620void bond_create_proc_dir(struct bond_net *bn);
621void bond_destroy_proc_dir(struct bond_net *bn);
622#else
623static inline void bond_create_proc_entry(struct bonding *bond)
624{
625}
626
627static inline void bond_remove_proc_entry(struct bonding *bond)
628{
629}
630
631static inline void bond_create_proc_dir(struct bond_net *bn)
632{
633}
634
635static inline void bond_destroy_proc_dir(struct bond_net *bn)
636{
637}
638#endif
639
567b871e 640static inline struct slave *bond_slave_has_mac(struct bonding *bond,
641 const u8 *mac)
642{
9caff1e7 643 struct list_head *iter;
567b871e 644 struct slave *tmp;
645
9caff1e7 646 bond_for_each_slave(bond, tmp, iter)
567b871e 647 if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
648 return tmp;
649
650 return NULL;
651}
bd33acc3 652
28c71926 653/* Caller must hold rcu_read_lock() for read */
654static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond,
655 const u8 *mac)
656{
657 struct list_head *iter;
658 struct slave *tmp;
659
660 bond_for_each_slave_rcu(bond, tmp, iter)
661 if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
662 return tmp;
663
664 return NULL;
665}
666
14af9963
VY
667/* Caller must hold rcu_read_lock() for read */
668static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac)
669{
670 struct list_head *iter;
671 struct slave *tmp;
672 struct netdev_hw_addr *ha;
673
674 bond_for_each_slave_rcu(bond, tmp, iter)
675 if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
676 return true;
677
678 if (netdev_uc_empty(bond->dev))
679 return false;
680
681 netdev_for_each_uc_addr(ha, bond->dev)
682 if (ether_addr_equal_64bits(mac, ha->addr))
683 return true;
684
685 return false;
686}
687
87a7b84b
VF
688/* Check if the ip is present in arp ip list, or first free slot if ip == 0
689 * Returns -1 if not found, index if found
690 */
691static inline int bond_get_targets_ip(__be32 *targets, __be32 ip)
692{
693 int i;
694
695 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
696 if (targets[i] == ip)
697 return i;
698 else if (targets[i] == 0)
699 break;
700
701 return -1;
702}
703
b2259672 704/* exported from bond_main.c */
c7d03a00 705extern unsigned int bond_net_id;
e97fd7c6 706extern const struct bond_parm_tbl bond_lacp_tbl[];
e97fd7c6
HE
707extern const struct bond_parm_tbl xmit_hashtype_tbl[];
708extern const struct bond_parm_tbl arp_validate_tbl[];
8599b52e 709extern const struct bond_parm_tbl arp_all_targets_tbl[];
e97fd7c6 710extern const struct bond_parm_tbl fail_over_mac_tbl[];
a549952a 711extern const struct bond_parm_tbl pri_reselect_tbl[];
b06715b7
HE
712extern struct bond_parm_tbl ad_select_tbl[];
713
0a2a78c4
JP
714/* exported from bond_netlink.c */
715extern struct rtnl_link_ops bond_link_ops;
716
31aa860e
ED
717static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
718{
719 atomic_long_inc(&dev->tx_dropped);
720 dev_kfree_skb_any(skb);
721}
722
1ef8019b 723#endif /* _NET_BONDING_H */