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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)) | |
72be35fe JP |
61 | |
62 | #define BOND_MODE_IS_LB(mode) \ | |
63 | (((mode) == BOND_MODE_TLB) || \ | |
64 | ((mode) == BOND_MODE_ALB)) | |
65 | ||
f9de11a1 WW |
66 | #define IS_IP_TARGET_UNUSABLE_ADDRESS(a) \ |
67 | ((htonl(INADDR_BROADCAST) == a) || \ | |
68 | ipv4_is_zeronet(a)) | |
1da177e4 LT |
69 | /* |
70 | * Less bad way to call ioctl from within the kernel; this needs to be | |
71 | * done some other way to get the call out of interrupt context. | |
72 | * Needs "ioctl" variable to be supplied by calling context. | |
73 | */ | |
74 | #define IOCTL(dev, arg, cmd) ({ \ | |
75 | int res = 0; \ | |
76 | mm_segment_t fs = get_fs(); \ | |
77 | set_fs(get_ds()); \ | |
78 | res = ioctl(dev, arg, cmd); \ | |
79 | set_fs(fs); \ | |
80 | res; }) | |
81 | ||
dec1e90e | 82 | /* slave list primitives */ |
5a52405a VF |
83 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
84 | ||
85 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 86 | |
dec1e90e | 87 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
88 | #define bond_first_slave(bond) \ | |
5a52405a VF |
89 | (bond_has_slaves(bond) ? \ |
90 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
91 | NULL) | |
dec1e90e | 92 | #define bond_last_slave(bond) \ |
5a52405a VF |
93 | (bond_has_slaves(bond) ? \ |
94 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
95 | NULL) | |
dec1e90e | 96 | |
5a52405a VF |
97 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
98 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 99 | |
1da177e4 | 100 | /** |
dec1e90e | 101 | * bond_for_each_slave - iterate over all slaves |
102 | * @bond: the bond holding this list | |
103 | * @pos: current slave | |
9caff1e7 | 104 | * @iter: list_head * iterator |
1da177e4 LT |
105 | * |
106 | * Caller must hold bond->lock | |
107 | */ | |
9caff1e7 VF |
108 | #define bond_for_each_slave(bond, pos, iter) \ |
109 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 110 | |
278b2083 | 111 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
112 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
113 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 114 | |
e843fa50 | 115 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 116 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
117 | |
118 | static inline void block_netpoll_tx(void) | |
119 | { | |
fb4fa76a | 120 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
121 | } |
122 | ||
123 | static inline void unblock_netpoll_tx(void) | |
124 | { | |
fb4fa76a | 125 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
126 | } |
127 | ||
128 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
129 | { | |
080e4130 | 130 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 131 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
132 | return 0; |
133 | } | |
134 | #else | |
135 | #define block_netpoll_tx() | |
136 | #define unblock_netpoll_tx() | |
137 | #define is_netpoll_tx_blocked(dev) (0) | |
138 | #endif | |
139 | ||
1da177e4 LT |
140 | struct bond_params { |
141 | int mode; | |
169a3e66 | 142 | int xmit_policy; |
1da177e4 | 143 | int miimon; |
ad246c99 | 144 | u8 num_peer_notif; |
1da177e4 | 145 | int arp_interval; |
f5b2b966 | 146 | int arp_validate; |
8599b52e | 147 | int arp_all_targets; |
1da177e4 | 148 | int use_carrier; |
dd957c57 | 149 | int fail_over_mac; |
1da177e4 LT |
150 | int updelay; |
151 | int downdelay; | |
152 | int lacp_fast; | |
655f8919 | 153 | unsigned int min_links; |
fd989c83 | 154 | int ad_select; |
1da177e4 | 155 | char primary[IFNAMSIZ]; |
a549952a | 156 | int primary_reselect; |
d3bb52b0 | 157 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 158 | int tx_queues; |
ebd8e497 | 159 | int all_slaves_active; |
c2952c31 | 160 | int resend_igmp; |
7eacd038 | 161 | int lp_interval; |
73958329 | 162 | int packets_per_slave; |
1da177e4 LT |
163 | }; |
164 | ||
12479f9a MW |
165 | struct bond_parm_tbl { |
166 | char *modename; | |
167 | int mode; | |
168 | }; | |
169 | ||
ece95f7f JV |
170 | #define BOND_MAX_MODENAME_LEN 20 |
171 | ||
1da177e4 | 172 | struct slave { |
e944ef79 | 173 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 174 | struct bonding *bond; /* our master */ |
8bb5f96b | 175 | int delay; |
f8a8ccd5 AG |
176 | unsigned long jiffies; |
177 | unsigned long last_arp_rx; | |
8599b52e | 178 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 179 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 180 | s8 new_link; |
2d7011ca JP |
181 | u8 backup:1, /* indicates backup slave. Value corresponds with |
182 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
183 | inactive:1; /* indicates inactive slave */ | |
5d30530e | 184 | u8 duplex; |
3158bf7d | 185 | u32 original_mtu; |
1da177e4 | 186 | u32 link_failure_count; |
5d30530e | 187 | u32 speed; |
bb1d9123 | 188 | u16 queue_id; |
5d30530e | 189 | u8 perm_hwaddr[ETH_ALEN]; |
1da177e4 LT |
190 | struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */ |
191 | struct tlb_slave_info tlb_info; | |
8a8efa22 AW |
192 | #ifdef CONFIG_NET_POLL_CONTROLLER |
193 | struct netpoll *np; | |
194 | #endif | |
1da177e4 LT |
195 | }; |
196 | ||
b2220cad JV |
197 | /* |
198 | * Link pseudo-state only used internally by monitors | |
199 | */ | |
200 | #define BOND_LINK_NOCHANGE -1 | |
201 | ||
1da177e4 LT |
202 | /* |
203 | * Here are the locking policies for the two bonding locks: | |
204 | * | |
205 | * 1) Get bond->lock when reading/writing slave list. | |
206 | * 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave. | |
207 | * (It is unnecessary when the write-lock is put with bond->lock.) | |
208 | * 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock | |
209 | * beforehand. | |
210 | */ | |
211 | struct bonding { | |
e944ef79 | 212 | struct net_device *dev; /* first - useful for panic debug */ |
1da177e4 LT |
213 | struct slave *curr_active_slave; |
214 | struct slave *current_arp_slave; | |
215 | struct slave *primary_slave; | |
a549952a | 216 | bool force_primary; |
1da177e4 | 217 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
218 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
219 | struct slave *); | |
1da177e4 LT |
220 | rwlock_t lock; |
221 | rwlock_t curr_slave_lock; | |
ad246c99 | 222 | u8 send_peer_notif; |
4f5474e7 | 223 | u8 igmp_retrans; |
1da177e4 LT |
224 | #ifdef CONFIG_PROC_FS |
225 | struct proc_dir_entry *proc_entry; | |
226 | char proc_file_name[IFNAMSIZ]; | |
227 | #endif /* CONFIG_PROC_FS */ | |
228 | struct list_head bond_list; | |
73958329 | 229 | u32 rr_tx_counter; |
1da177e4 LT |
230 | struct ad_bond_info ad_info; |
231 | struct alb_bond_info alb_info; | |
232 | struct bond_params params; | |
1b76b316 JV |
233 | struct workqueue_struct *wq; |
234 | struct delayed_work mii_work; | |
235 | struct delayed_work arp_work; | |
236 | struct delayed_work alb_work; | |
237 | struct delayed_work ad_work; | |
5a37e8ca | 238 | struct delayed_work mcast_work; |
f073c7ca | 239 | #ifdef CONFIG_DEBUG_FS |
02582e9b | 240 | /* debugging support via debugfs */ |
f073c7ca TI |
241 | struct dentry *debug_dir; |
242 | #endif /* CONFIG_DEBUG_FS */ | |
1da177e4 LT |
243 | }; |
244 | ||
f1c1775a JP |
245 | #define bond_slave_get_rcu(dev) \ |
246 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
247 | ||
471cb5a3 JP |
248 | #define bond_slave_get_rtnl(dev) \ |
249 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
250 | ||
1da177e4 LT |
251 | /** |
252 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
253 | * | |
254 | * Caller must hold bond lock for read | |
255 | */ | |
4ec952b8 | 256 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
257 | struct net_device *slave_dev) | |
1da177e4 | 258 | { |
46bb4807 | 259 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
1da177e4 LT |
260 | } |
261 | ||
cceb904f | 262 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 263 | { |
471cb5a3 | 264 | if (!slave || !slave->bond) |
1da177e4 | 265 | return NULL; |
471cb5a3 | 266 | return slave->bond; |
1da177e4 LT |
267 | } |
268 | ||
58402054 HE |
269 | static inline bool bond_is_lb(const struct bonding *bond) |
270 | { | |
72be35fe | 271 | return BOND_MODE_IS_LB(bond->params.mode); |
58402054 HE |
272 | } |
273 | ||
e30bc066 JP |
274 | static inline void bond_set_active_slave(struct slave *slave) |
275 | { | |
276 | slave->backup = 0; | |
277 | } | |
278 | ||
279 | static inline void bond_set_backup_slave(struct slave *slave) | |
280 | { | |
281 | slave->backup = 1; | |
282 | } | |
283 | ||
284 | static inline int bond_slave_state(struct slave *slave) | |
285 | { | |
286 | return slave->backup; | |
287 | } | |
288 | ||
289 | static inline bool bond_is_active_slave(struct slave *slave) | |
290 | { | |
291 | return !bond_slave_state(slave); | |
292 | } | |
293 | ||
a549952a JP |
294 | #define BOND_PRI_RESELECT_ALWAYS 0 |
295 | #define BOND_PRI_RESELECT_BETTER 1 | |
296 | #define BOND_PRI_RESELECT_FAILURE 2 | |
297 | ||
3915c1e8 JV |
298 | #define BOND_FOM_NONE 0 |
299 | #define BOND_FOM_ACTIVE 1 | |
300 | #define BOND_FOM_FOLLOW 2 | |
301 | ||
8599b52e VF |
302 | #define BOND_ARP_TARGETS_ANY 0 |
303 | #define BOND_ARP_TARGETS_ALL 1 | |
304 | ||
f5b2b966 JV |
305 | #define BOND_ARP_VALIDATE_NONE 0 |
306 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
307 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
308 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
309 | BOND_ARP_VALIDATE_BACKUP) | |
310 | ||
079ca7da AB |
311 | static inline int slave_do_arp_validate(struct bonding *bond, |
312 | struct slave *slave) | |
f5b2b966 | 313 | { |
e30bc066 | 314 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
315 | } |
316 | ||
8599b52e VF |
317 | /* Get the oldest arp which we've received on this slave for bond's |
318 | * arp_targets. | |
319 | */ | |
320 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
321 | struct slave *slave) | |
322 | { | |
323 | int i = 1; | |
324 | unsigned long ret = slave->target_last_arp_rx[0]; | |
325 | ||
326 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
327 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
328 | ret = slave->target_last_arp_rx[i]; | |
329 | ||
330 | return ret; | |
331 | } | |
332 | ||
079ca7da | 333 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 334 | struct slave *slave) |
f5b2b966 | 335 | { |
8599b52e VF |
336 | if (slave_do_arp_validate(bond, slave)) { |
337 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) | |
338 | return slave_oldest_target_arp_rx(bond, slave); | |
339 | else | |
340 | return slave->last_arp_rx; | |
341 | } | |
f5b2b966 JV |
342 | |
343 | return slave->dev->last_rx; | |
344 | } | |
345 | ||
8a8efa22 AW |
346 | #ifdef CONFIG_NET_POLL_CONTROLLER |
347 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
348 | struct sk_buff *skb) | |
349 | { | |
350 | struct netpoll *np = slave->np; | |
351 | ||
352 | if (np) | |
353 | netpoll_send_skb(np, skb); | |
354 | } | |
355 | #else | |
356 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
357 | struct sk_buff *skb) | |
358 | { | |
359 | } | |
360 | #endif | |
361 | ||
cceb904f | 362 | static inline void bond_set_slave_inactive_flags(struct slave *slave) |
1da177e4 | 363 | { |
471cb5a3 | 364 | if (!bond_is_lb(slave->bond)) |
e30bc066 | 365 | bond_set_backup_slave(slave); |
471cb5a3 | 366 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 367 | slave->inactive = 1; |
1da177e4 LT |
368 | } |
369 | ||
cceb904f | 370 | static inline void bond_set_slave_active_flags(struct slave *slave) |
1da177e4 | 371 | { |
e30bc066 | 372 | bond_set_active_slave(slave); |
2d7011ca JP |
373 | slave->inactive = 0; |
374 | } | |
375 | ||
376 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
377 | { | |
378 | return slave->inactive; | |
1da177e4 LT |
379 | } |
380 | ||
eaddcd76 AG |
381 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
382 | { | |
383 | struct in_device *in_dev; | |
384 | __be32 addr = 0; | |
385 | ||
386 | rcu_read_lock(); | |
387 | in_dev = __in_dev_get_rcu(dev); | |
388 | ||
389 | if (in_dev) | |
390 | addr = inet_confirm_addr(in_dev, dst, local, RT_SCOPE_HOST); | |
391 | ||
392 | rcu_read_unlock(); | |
393 | return addr; | |
394 | } | |
395 | ||
15077228 NA |
396 | static inline bool slave_can_tx(struct slave *slave) |
397 | { | |
398 | if (IS_UP(slave->dev) && slave->link == BOND_LINK_UP && | |
399 | bond_is_active_slave(slave)) | |
400 | return true; | |
401 | else | |
402 | return false; | |
403 | } | |
404 | ||
4c22400a EB |
405 | struct bond_net; |
406 | ||
5bb9e0b5 | 407 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
1da177e4 | 408 | int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
15077228 | 409 | void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id); |
ec87fd3b | 410 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
411 | int bond_create_sysfs(struct bond_net *net); |
412 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 413 | void bond_prepare_sysfs_group(struct bonding *bond); |
a77b5325 MW |
414 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
415 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
1b76b316 JV |
416 | void bond_mii_monitor(struct work_struct *); |
417 | void bond_loadbalance_arp_mon(struct work_struct *); | |
418 | void bond_activebackup_arp_mon(struct work_struct *); | |
32819dc1 | 419 | int bond_xmit_hash(struct bonding *bond, struct sk_buff *skb, int count); |
325dcf7a | 420 | int bond_parse_parm(const char *mode_arg, const struct bond_parm_tbl *tbl); |
a77b5325 MW |
421 | void bond_select_active_slave(struct bonding *bond); |
422 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
423 | void bond_create_debugfs(void); |
424 | void bond_destroy_debugfs(void); | |
425 | void bond_debug_register(struct bonding *bond); | |
426 | void bond_debug_unregister(struct bonding *bond); | |
427 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 428 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
429 | void bond_setup(struct net_device *bond_dev); |
430 | unsigned int bond_get_num_tx_queues(void); | |
431 | int bond_netlink_init(void); | |
432 | void bond_netlink_fini(void); | |
72be35fe | 433 | int bond_option_mode_set(struct bonding *bond, int mode); |
d9e32b21 | 434 | int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev); |
752d48b5 JP |
435 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
436 | struct net_device *bond_option_active_slave_get(struct bonding *bond); | |
1da177e4 | 437 | |
ec87fd3b EB |
438 | struct bond_net { |
439 | struct net * net; /* Associated network namespace */ | |
440 | struct list_head dev_list; | |
441 | #ifdef CONFIG_PROC_FS | |
442 | struct proc_dir_entry * proc_dir; | |
443 | #endif | |
4c22400a | 444 | struct class_attribute class_attr_bonding_masters; |
ec87fd3b EB |
445 | }; |
446 | ||
bd33acc3 AW |
447 | #ifdef CONFIG_PROC_FS |
448 | void bond_create_proc_entry(struct bonding *bond); | |
449 | void bond_remove_proc_entry(struct bonding *bond); | |
450 | void bond_create_proc_dir(struct bond_net *bn); | |
451 | void bond_destroy_proc_dir(struct bond_net *bn); | |
452 | #else | |
453 | static inline void bond_create_proc_entry(struct bonding *bond) | |
454 | { | |
455 | } | |
456 | ||
457 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
458 | { | |
459 | } | |
460 | ||
461 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
462 | { | |
463 | } | |
464 | ||
465 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
466 | { | |
467 | } | |
468 | #endif | |
469 | ||
567b871e | 470 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
471 | const u8 *mac) | |
472 | { | |
9caff1e7 | 473 | struct list_head *iter; |
567b871e | 474 | struct slave *tmp; |
475 | ||
9caff1e7 | 476 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 477 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
478 | return tmp; | |
479 | ||
480 | return NULL; | |
481 | } | |
bd33acc3 | 482 | |
28c71926 | 483 | /* Caller must hold rcu_read_lock() for read */ |
484 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
485 | const u8 *mac) | |
486 | { | |
487 | struct list_head *iter; | |
488 | struct slave *tmp; | |
489 | ||
490 | bond_for_each_slave_rcu(bond, tmp, iter) | |
491 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
492 | return tmp; | |
493 | ||
494 | return NULL; | |
495 | } | |
496 | ||
87a7b84b VF |
497 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
498 | * Returns -1 if not found, index if found | |
499 | */ | |
500 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
501 | { | |
502 | int i; | |
503 | ||
504 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
505 | if (targets[i] == ip) | |
506 | return i; | |
507 | else if (targets[i] == 0) | |
508 | break; | |
509 | ||
510 | return -1; | |
511 | } | |
512 | ||
b2259672 | 513 | /* exported from bond_main.c */ |
ec87fd3b | 514 | extern int bond_net_id; |
e97fd7c6 HE |
515 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
516 | extern const struct bond_parm_tbl bond_mode_tbl[]; | |
517 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; | |
518 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 519 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 520 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 521 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
522 | extern struct bond_parm_tbl ad_select_tbl[]; |
523 | ||
0a2a78c4 JP |
524 | /* exported from bond_netlink.c */ |
525 | extern struct rtnl_link_ops bond_link_ops; | |
526 | ||
1da177e4 | 527 | #endif /* _LINUX_BONDING_H */ |