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Commit | Line | Data |
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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> | |
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> |
1da177e4 LT |
26 | #include "bond_3ad.h" |
27 | #include "bond_alb.h" | |
28 | ||
ad246c99 BH |
29 | #define DRV_VERSION "3.7.1" |
30 | #define DRV_RELDATE "April 27, 2011" | |
1da177e4 LT |
31 | #define DRV_NAME "bonding" |
32 | #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" | |
33 | ||
bd33acc3 AW |
34 | #define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n" |
35 | ||
1da177e4 LT |
36 | #define BOND_MAX_ARP_TARGETS 16 |
37 | ||
1da177e4 LT |
38 | #define IS_UP(dev) \ |
39 | ((((dev)->flags & IFF_UP) == IFF_UP) && \ | |
40 | netif_running(dev) && \ | |
41 | netif_carrier_ok(dev)) | |
42 | ||
1da177e4 LT |
43 | /* |
44 | * Checks whether slave is ready for transmit. | |
45 | */ | |
46 | #define SLAVE_IS_OK(slave) \ | |
47 | (((slave)->dev->flags & IFF_UP) && \ | |
48 | netif_running((slave)->dev) && \ | |
49 | ((slave)->link == BOND_LINK_UP) && \ | |
e30bc066 | 50 | bond_is_active_slave(slave)) |
1da177e4 LT |
51 | |
52 | ||
53 | #define USES_PRIMARY(mode) \ | |
54 | (((mode) == BOND_MODE_ACTIVEBACKUP) || \ | |
55 | ((mode) == BOND_MODE_TLB) || \ | |
56 | ((mode) == BOND_MODE_ALB)) | |
57 | ||
bb1d9123 AG |
58 | #define TX_QUEUE_OVERRIDE(mode) \ |
59 | (((mode) == BOND_MODE_ACTIVEBACKUP) || \ | |
60 | ((mode) == BOND_MODE_ROUNDROBIN)) | |
1da177e4 LT |
61 | /* |
62 | * Less bad way to call ioctl from within the kernel; this needs to be | |
63 | * done some other way to get the call out of interrupt context. | |
64 | * Needs "ioctl" variable to be supplied by calling context. | |
65 | */ | |
66 | #define IOCTL(dev, arg, cmd) ({ \ | |
67 | int res = 0; \ | |
68 | mm_segment_t fs = get_fs(); \ | |
69 | set_fs(get_ds()); \ | |
70 | res = ioctl(dev, arg, cmd); \ | |
71 | set_fs(fs); \ | |
72 | res; }) | |
73 | ||
dec1e90e | 74 | /* slave list primitives */ |
75 | #define bond_to_slave(ptr) list_entry(ptr, struct slave, list) | |
76 | ||
77 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ | |
78 | #define bond_first_slave(bond) \ | |
79 | list_first_entry_or_null(&(bond)->slave_list, struct slave, list) | |
80 | #define bond_last_slave(bond) \ | |
81 | (list_empty(&(bond)->slave_list) ? NULL : \ | |
82 | bond_to_slave((bond)->slave_list.prev)) | |
83 | ||
84 | #define bond_is_first_slave(bond, pos) ((pos)->list.prev == &(bond)->slave_list) | |
85 | #define bond_is_last_slave(bond, pos) ((pos)->list.next == &(bond)->slave_list) | |
86 | ||
87 | /* Since bond_first/last_slave can return NULL, these can return NULL too */ | |
88 | #define bond_next_slave(bond, pos) \ | |
89 | (bond_is_last_slave(bond, pos) ? bond_first_slave(bond) : \ | |
90 | bond_to_slave((pos)->list.next)) | |
91 | ||
92 | #define bond_prev_slave(bond, pos) \ | |
93 | (bond_is_first_slave(bond, pos) ? bond_last_slave(bond) : \ | |
94 | bond_to_slave((pos)->list.prev)) | |
95 | ||
1da177e4 LT |
96 | /** |
97 | * bond_for_each_slave_from - iterate the slaves list from a starting point | |
98 | * @bond: the bond holding this list. | |
99 | * @pos: current slave. | |
100 | * @cnt: counter for max number of moves | |
101 | * @start: starting point. | |
102 | * | |
103 | * Caller must hold bond->lock | |
104 | */ | |
dec1e90e | 105 | #define bond_for_each_slave_from(bond, pos, cnt, start) \ |
106 | for (cnt = 0, pos = start; pos && cnt < (bond)->slave_cnt; \ | |
107 | cnt++, pos = bond_next_slave(bond, pos)) | |
1da177e4 LT |
108 | |
109 | /** | |
dec1e90e | 110 | * bond_for_each_slave - iterate over all slaves |
111 | * @bond: the bond holding this list | |
112 | * @pos: current slave | |
1da177e4 LT |
113 | * |
114 | * Caller must hold bond->lock | |
115 | */ | |
dec1e90e | 116 | #define bond_for_each_slave(bond, pos) \ |
117 | list_for_each_entry(pos, &(bond)->slave_list, list) | |
1da177e4 | 118 | |
278b2083 | 119 | /* Caller must have rcu_read_lock */ |
120 | #define bond_for_each_slave_rcu(bond, pos) \ | |
121 | list_for_each_entry_rcu(pos, &(bond)->slave_list, list) | |
122 | ||
1da177e4 | 123 | /** |
dec1e90e | 124 | * bond_for_each_slave_reverse - iterate in reverse from a given position |
125 | * @bond: the bond holding this list | |
126 | * @pos: slave to continue from | |
1da177e4 LT |
127 | * |
128 | * Caller must hold bond->lock | |
129 | */ | |
dec1e90e | 130 | #define bond_for_each_slave_continue_reverse(bond, pos) \ |
131 | list_for_each_entry_continue_reverse(pos, &(bond)->slave_list, list) | |
1da177e4 | 132 | |
e843fa50 | 133 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 134 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
135 | |
136 | static inline void block_netpoll_tx(void) | |
137 | { | |
fb4fa76a | 138 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
139 | } |
140 | ||
141 | static inline void unblock_netpoll_tx(void) | |
142 | { | |
fb4fa76a | 143 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
144 | } |
145 | ||
146 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
147 | { | |
080e4130 | 148 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 149 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
150 | return 0; |
151 | } | |
152 | #else | |
153 | #define block_netpoll_tx() | |
154 | #define unblock_netpoll_tx() | |
155 | #define is_netpoll_tx_blocked(dev) (0) | |
156 | #endif | |
157 | ||
1da177e4 LT |
158 | struct bond_params { |
159 | int mode; | |
169a3e66 | 160 | int xmit_policy; |
1da177e4 | 161 | int miimon; |
ad246c99 | 162 | u8 num_peer_notif; |
1da177e4 | 163 | int arp_interval; |
f5b2b966 | 164 | int arp_validate; |
8599b52e | 165 | int arp_all_targets; |
1da177e4 | 166 | int use_carrier; |
dd957c57 | 167 | int fail_over_mac; |
1da177e4 LT |
168 | int updelay; |
169 | int downdelay; | |
170 | int lacp_fast; | |
655f8919 | 171 | unsigned int min_links; |
fd989c83 | 172 | int ad_select; |
1da177e4 | 173 | char primary[IFNAMSIZ]; |
a549952a | 174 | int primary_reselect; |
d3bb52b0 | 175 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 176 | int tx_queues; |
ebd8e497 | 177 | int all_slaves_active; |
c2952c31 | 178 | int resend_igmp; |
1da177e4 LT |
179 | }; |
180 | ||
12479f9a MW |
181 | struct bond_parm_tbl { |
182 | char *modename; | |
183 | int mode; | |
184 | }; | |
185 | ||
ece95f7f JV |
186 | #define BOND_MAX_MODENAME_LEN 20 |
187 | ||
1da177e4 | 188 | struct slave { |
e944ef79 | 189 | struct net_device *dev; /* first - useful for panic debug */ |
dec1e90e | 190 | struct list_head list; |
35d48903 | 191 | struct bonding *bond; /* our master */ |
8bb5f96b | 192 | int delay; |
f8a8ccd5 AG |
193 | unsigned long jiffies; |
194 | unsigned long last_arp_rx; | |
8599b52e | 195 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 196 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 197 | s8 new_link; |
2d7011ca JP |
198 | u8 backup:1, /* indicates backup slave. Value corresponds with |
199 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
200 | inactive:1; /* indicates inactive slave */ | |
5d30530e | 201 | u8 duplex; |
3158bf7d | 202 | u32 original_mtu; |
1da177e4 | 203 | u32 link_failure_count; |
5d30530e | 204 | u32 speed; |
bb1d9123 | 205 | u16 queue_id; |
5d30530e | 206 | u8 perm_hwaddr[ETH_ALEN]; |
1da177e4 LT |
207 | struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */ |
208 | struct tlb_slave_info tlb_info; | |
8a8efa22 AW |
209 | #ifdef CONFIG_NET_POLL_CONTROLLER |
210 | struct netpoll *np; | |
211 | #endif | |
1da177e4 LT |
212 | }; |
213 | ||
b2220cad JV |
214 | /* |
215 | * Link pseudo-state only used internally by monitors | |
216 | */ | |
217 | #define BOND_LINK_NOCHANGE -1 | |
218 | ||
1da177e4 LT |
219 | /* |
220 | * Here are the locking policies for the two bonding locks: | |
221 | * | |
222 | * 1) Get bond->lock when reading/writing slave list. | |
223 | * 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave. | |
224 | * (It is unnecessary when the write-lock is put with bond->lock.) | |
225 | * 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock | |
226 | * beforehand. | |
227 | */ | |
228 | struct bonding { | |
e944ef79 | 229 | struct net_device *dev; /* first - useful for panic debug */ |
dec1e90e | 230 | struct list_head slave_list; |
1da177e4 LT |
231 | struct slave *curr_active_slave; |
232 | struct slave *current_arp_slave; | |
233 | struct slave *primary_slave; | |
a549952a | 234 | bool force_primary; |
1da177e4 | 235 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
236 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
237 | struct slave *); | |
1da177e4 LT |
238 | rwlock_t lock; |
239 | rwlock_t curr_slave_lock; | |
ad246c99 | 240 | u8 send_peer_notif; |
4f5474e7 | 241 | u8 igmp_retrans; |
1da177e4 LT |
242 | #ifdef CONFIG_PROC_FS |
243 | struct proc_dir_entry *proc_entry; | |
244 | char proc_file_name[IFNAMSIZ]; | |
245 | #endif /* CONFIG_PROC_FS */ | |
246 | struct list_head bond_list; | |
a361c83c | 247 | int (*xmit_hash_policy)(struct sk_buff *, int); |
cf5f9044 | 248 | u16 rr_tx_counter; |
1da177e4 LT |
249 | struct ad_bond_info ad_info; |
250 | struct alb_bond_info alb_info; | |
251 | struct bond_params params; | |
1b76b316 JV |
252 | struct workqueue_struct *wq; |
253 | struct delayed_work mii_work; | |
254 | struct delayed_work arp_work; | |
255 | struct delayed_work alb_work; | |
256 | struct delayed_work ad_work; | |
5a37e8ca | 257 | struct delayed_work mcast_work; |
f073c7ca | 258 | #ifdef CONFIG_DEBUG_FS |
02582e9b | 259 | /* debugging support via debugfs */ |
f073c7ca TI |
260 | struct dentry *debug_dir; |
261 | #endif /* CONFIG_DEBUG_FS */ | |
1da177e4 LT |
262 | }; |
263 | ||
f1c1775a JP |
264 | #define bond_slave_get_rcu(dev) \ |
265 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
266 | ||
471cb5a3 JP |
267 | #define bond_slave_get_rtnl(dev) \ |
268 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
269 | ||
1da177e4 LT |
270 | /** |
271 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
272 | * | |
273 | * Caller must hold bond lock for read | |
274 | */ | |
4ec952b8 | 275 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
276 | struct net_device *slave_dev) | |
1da177e4 LT |
277 | { |
278 | struct slave *slave = NULL; | |
1da177e4 | 279 | |
dec1e90e | 280 | bond_for_each_slave(bond, slave) |
281 | if (slave->dev == slave_dev) | |
af3e5bd5 | 282 | return slave; |
1da177e4 | 283 | |
4ec952b8 | 284 | return NULL; |
1da177e4 LT |
285 | } |
286 | ||
cceb904f | 287 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 288 | { |
471cb5a3 | 289 | if (!slave || !slave->bond) |
1da177e4 | 290 | return NULL; |
471cb5a3 | 291 | return slave->bond; |
1da177e4 LT |
292 | } |
293 | ||
58402054 HE |
294 | static inline bool bond_is_lb(const struct bonding *bond) |
295 | { | |
8e95a202 JP |
296 | return (bond->params.mode == BOND_MODE_TLB || |
297 | bond->params.mode == BOND_MODE_ALB); | |
58402054 HE |
298 | } |
299 | ||
e30bc066 JP |
300 | static inline void bond_set_active_slave(struct slave *slave) |
301 | { | |
302 | slave->backup = 0; | |
303 | } | |
304 | ||
305 | static inline void bond_set_backup_slave(struct slave *slave) | |
306 | { | |
307 | slave->backup = 1; | |
308 | } | |
309 | ||
310 | static inline int bond_slave_state(struct slave *slave) | |
311 | { | |
312 | return slave->backup; | |
313 | } | |
314 | ||
315 | static inline bool bond_is_active_slave(struct slave *slave) | |
316 | { | |
317 | return !bond_slave_state(slave); | |
318 | } | |
319 | ||
a549952a JP |
320 | #define BOND_PRI_RESELECT_ALWAYS 0 |
321 | #define BOND_PRI_RESELECT_BETTER 1 | |
322 | #define BOND_PRI_RESELECT_FAILURE 2 | |
323 | ||
3915c1e8 JV |
324 | #define BOND_FOM_NONE 0 |
325 | #define BOND_FOM_ACTIVE 1 | |
326 | #define BOND_FOM_FOLLOW 2 | |
327 | ||
8599b52e VF |
328 | #define BOND_ARP_TARGETS_ANY 0 |
329 | #define BOND_ARP_TARGETS_ALL 1 | |
330 | ||
f5b2b966 JV |
331 | #define BOND_ARP_VALIDATE_NONE 0 |
332 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
333 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
334 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
335 | BOND_ARP_VALIDATE_BACKUP) | |
336 | ||
079ca7da AB |
337 | static inline int slave_do_arp_validate(struct bonding *bond, |
338 | struct slave *slave) | |
f5b2b966 | 339 | { |
e30bc066 | 340 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
341 | } |
342 | ||
8599b52e VF |
343 | /* Get the oldest arp which we've received on this slave for bond's |
344 | * arp_targets. | |
345 | */ | |
346 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
347 | struct slave *slave) | |
348 | { | |
349 | int i = 1; | |
350 | unsigned long ret = slave->target_last_arp_rx[0]; | |
351 | ||
352 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
353 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
354 | ret = slave->target_last_arp_rx[i]; | |
355 | ||
356 | return ret; | |
357 | } | |
358 | ||
079ca7da | 359 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 360 | struct slave *slave) |
f5b2b966 | 361 | { |
8599b52e VF |
362 | if (slave_do_arp_validate(bond, slave)) { |
363 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) | |
364 | return slave_oldest_target_arp_rx(bond, slave); | |
365 | else | |
366 | return slave->last_arp_rx; | |
367 | } | |
f5b2b966 JV |
368 | |
369 | return slave->dev->last_rx; | |
370 | } | |
371 | ||
8a8efa22 AW |
372 | #ifdef CONFIG_NET_POLL_CONTROLLER |
373 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
374 | struct sk_buff *skb) | |
375 | { | |
376 | struct netpoll *np = slave->np; | |
377 | ||
378 | if (np) | |
379 | netpoll_send_skb(np, skb); | |
380 | } | |
381 | #else | |
382 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
383 | struct sk_buff *skb) | |
384 | { | |
385 | } | |
386 | #endif | |
387 | ||
cceb904f | 388 | static inline void bond_set_slave_inactive_flags(struct slave *slave) |
1da177e4 | 389 | { |
471cb5a3 | 390 | if (!bond_is_lb(slave->bond)) |
e30bc066 | 391 | bond_set_backup_slave(slave); |
471cb5a3 | 392 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 393 | slave->inactive = 1; |
1da177e4 LT |
394 | } |
395 | ||
cceb904f | 396 | static inline void bond_set_slave_active_flags(struct slave *slave) |
1da177e4 | 397 | { |
e30bc066 | 398 | bond_set_active_slave(slave); |
2d7011ca JP |
399 | slave->inactive = 0; |
400 | } | |
401 | ||
402 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
403 | { | |
404 | return slave->inactive; | |
1da177e4 LT |
405 | } |
406 | ||
eaddcd76 AG |
407 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
408 | { | |
409 | struct in_device *in_dev; | |
410 | __be32 addr = 0; | |
411 | ||
412 | rcu_read_lock(); | |
413 | in_dev = __in_dev_get_rcu(dev); | |
414 | ||
415 | if (in_dev) | |
416 | addr = inet_confirm_addr(in_dev, dst, local, RT_SCOPE_HOST); | |
417 | ||
418 | rcu_read_unlock(); | |
419 | return addr; | |
420 | } | |
421 | ||
15077228 NA |
422 | static inline bool slave_can_tx(struct slave *slave) |
423 | { | |
424 | if (IS_UP(slave->dev) && slave->link == BOND_LINK_UP && | |
425 | bond_is_active_slave(slave)) | |
426 | return true; | |
427 | else | |
428 | return false; | |
429 | } | |
430 | ||
4c22400a EB |
431 | struct bond_net; |
432 | ||
1da177e4 LT |
433 | struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr); |
434 | int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); | |
15077228 | 435 | void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id); |
ec87fd3b | 436 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
437 | int bond_create_sysfs(struct bond_net *net); |
438 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 439 | void bond_prepare_sysfs_group(struct bonding *bond); |
b76cdba9 MW |
440 | int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave); |
441 | void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave); | |
a77b5325 MW |
442 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
443 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
1b76b316 JV |
444 | void bond_mii_monitor(struct work_struct *); |
445 | void bond_loadbalance_arp_mon(struct work_struct *); | |
446 | void bond_activebackup_arp_mon(struct work_struct *); | |
a77b5325 | 447 | void bond_set_mode_ops(struct bonding *bond, int mode); |
325dcf7a | 448 | int bond_parse_parm(const char *mode_arg, const struct bond_parm_tbl *tbl); |
a77b5325 MW |
449 | void bond_select_active_slave(struct bonding *bond); |
450 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
451 | void bond_create_debugfs(void); |
452 | void bond_destroy_debugfs(void); | |
453 | void bond_debug_register(struct bonding *bond); | |
454 | void bond_debug_unregister(struct bonding *bond); | |
455 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 456 | const char *bond_mode_name(int mode); |
1da177e4 | 457 | |
ec87fd3b EB |
458 | struct bond_net { |
459 | struct net * net; /* Associated network namespace */ | |
460 | struct list_head dev_list; | |
461 | #ifdef CONFIG_PROC_FS | |
462 | struct proc_dir_entry * proc_dir; | |
463 | #endif | |
4c22400a | 464 | struct class_attribute class_attr_bonding_masters; |
ec87fd3b EB |
465 | }; |
466 | ||
bd33acc3 AW |
467 | #ifdef CONFIG_PROC_FS |
468 | void bond_create_proc_entry(struct bonding *bond); | |
469 | void bond_remove_proc_entry(struct bonding *bond); | |
470 | void bond_create_proc_dir(struct bond_net *bn); | |
471 | void bond_destroy_proc_dir(struct bond_net *bn); | |
472 | #else | |
473 | static inline void bond_create_proc_entry(struct bonding *bond) | |
474 | { | |
475 | } | |
476 | ||
477 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
478 | { | |
479 | } | |
480 | ||
481 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
482 | { | |
483 | } | |
484 | ||
485 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
486 | { | |
487 | } | |
488 | #endif | |
489 | ||
567b871e | 490 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
491 | const u8 *mac) | |
492 | { | |
567b871e | 493 | struct slave *tmp; |
494 | ||
dec1e90e | 495 | bond_for_each_slave(bond, tmp) |
567b871e | 496 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
497 | return tmp; | |
498 | ||
499 | return NULL; | |
500 | } | |
bd33acc3 | 501 | |
87a7b84b VF |
502 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
503 | * Returns -1 if not found, index if found | |
504 | */ | |
505 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
506 | { | |
507 | int i; | |
508 | ||
509 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
510 | if (targets[i] == ip) | |
511 | return i; | |
512 | else if (targets[i] == 0) | |
513 | break; | |
514 | ||
515 | return -1; | |
516 | } | |
517 | ||
b2259672 | 518 | /* exported from bond_main.c */ |
ec87fd3b | 519 | extern int bond_net_id; |
e97fd7c6 HE |
520 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
521 | extern const struct bond_parm_tbl bond_mode_tbl[]; | |
522 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; | |
523 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 524 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 525 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 526 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
527 | extern struct bond_parm_tbl ad_select_tbl[]; |
528 | ||
1da177e4 | 529 | #endif /* _LINUX_BONDING_H */ |