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> | |
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 HFS |
26 | #include <linux/reciprocal_div.h> |
27 | ||
1da177e4 LT |
28 | #include "bond_3ad.h" |
29 | #include "bond_alb.h" | |
09117362 | 30 | #include "bond_options.h" |
1da177e4 | 31 | |
ad246c99 BH |
32 | #define DRV_VERSION "3.7.1" |
33 | #define DRV_RELDATE "April 27, 2011" | |
1da177e4 LT |
34 | #define DRV_NAME "bonding" |
35 | #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" | |
36 | ||
bd33acc3 AW |
37 | #define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n" |
38 | ||
1da177e4 LT |
39 | #define BOND_MAX_ARP_TARGETS 16 |
40 | ||
fe9d04af | 41 | #define BOND_DEFAULT_MIIMON 100 |
42 | ||
1da177e4 LT |
43 | /* |
44 | * Less bad way to call ioctl from within the kernel; this needs to be | |
45 | * done some other way to get the call out of interrupt context. | |
46 | * Needs "ioctl" variable to be supplied by calling context. | |
47 | */ | |
48 | #define IOCTL(dev, arg, cmd) ({ \ | |
49 | int res = 0; \ | |
50 | mm_segment_t fs = get_fs(); \ | |
51 | set_fs(get_ds()); \ | |
52 | res = ioctl(dev, arg, cmd); \ | |
53 | set_fs(fs); \ | |
54 | res; }) | |
55 | ||
01844098 VF |
56 | #define BOND_MODE(bond) ((bond)->params.mode) |
57 | ||
dec1e90e | 58 | /* slave list primitives */ |
5a52405a VF |
59 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
60 | ||
61 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 62 | |
dec1e90e | 63 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
64 | #define bond_first_slave(bond) \ | |
5a52405a VF |
65 | (bond_has_slaves(bond) ? \ |
66 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
67 | NULL) | |
dec1e90e | 68 | #define bond_last_slave(bond) \ |
5a52405a VF |
69 | (bond_has_slaves(bond) ? \ |
70 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
71 | NULL) | |
dec1e90e | 72 | |
e001bfad | 73 | /* Caller must have rcu_read_lock */ |
74 | #define bond_first_slave_rcu(bond) \ | |
75 | netdev_lower_get_first_private_rcu(bond->dev) | |
76 | ||
5a52405a VF |
77 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
78 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 79 | |
1da177e4 | 80 | /** |
dec1e90e | 81 | * bond_for_each_slave - iterate over all slaves |
82 | * @bond: the bond holding this list | |
83 | * @pos: current slave | |
9caff1e7 | 84 | * @iter: list_head * iterator |
1da177e4 | 85 | * |
87163ef9 | 86 | * Caller must hold RTNL |
1da177e4 | 87 | */ |
9caff1e7 VF |
88 | #define bond_for_each_slave(bond, pos, iter) \ |
89 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 90 | |
278b2083 | 91 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
92 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
93 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 94 | |
e843fa50 | 95 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 96 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
97 | |
98 | static inline void block_netpoll_tx(void) | |
99 | { | |
fb4fa76a | 100 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
101 | } |
102 | ||
103 | static inline void unblock_netpoll_tx(void) | |
104 | { | |
fb4fa76a | 105 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
106 | } |
107 | ||
108 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
109 | { | |
080e4130 | 110 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 111 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
112 | return 0; |
113 | } | |
114 | #else | |
115 | #define block_netpoll_tx() | |
116 | #define unblock_netpoll_tx() | |
117 | #define is_netpoll_tx_blocked(dev) (0) | |
118 | #endif | |
119 | ||
1da177e4 LT |
120 | struct bond_params { |
121 | int mode; | |
169a3e66 | 122 | int xmit_policy; |
1da177e4 | 123 | int miimon; |
ad246c99 | 124 | u8 num_peer_notif; |
1da177e4 | 125 | int arp_interval; |
f5b2b966 | 126 | int arp_validate; |
8599b52e | 127 | int arp_all_targets; |
1da177e4 | 128 | int use_carrier; |
dd957c57 | 129 | int fail_over_mac; |
1da177e4 LT |
130 | int updelay; |
131 | int downdelay; | |
132 | int lacp_fast; | |
655f8919 | 133 | unsigned int min_links; |
fd989c83 | 134 | int ad_select; |
1da177e4 | 135 | char primary[IFNAMSIZ]; |
a549952a | 136 | int primary_reselect; |
d3bb52b0 | 137 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 138 | int tx_queues; |
ebd8e497 | 139 | int all_slaves_active; |
c2952c31 | 140 | int resend_igmp; |
7eacd038 | 141 | int lp_interval; |
73958329 | 142 | int packets_per_slave; |
e9f0fb88 | 143 | int tlb_dynamic_lb; |
809fa972 | 144 | struct reciprocal_value reciprocal_packets_per_slave; |
1da177e4 LT |
145 | }; |
146 | ||
12479f9a MW |
147 | struct bond_parm_tbl { |
148 | char *modename; | |
149 | int mode; | |
150 | }; | |
151 | ||
1da177e4 | 152 | struct slave { |
e944ef79 | 153 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 154 | struct bonding *bond; /* our master */ |
8bb5f96b | 155 | int delay; |
8e603460 VF |
156 | /* all three in jiffies */ |
157 | unsigned long last_link_up; | |
49f17de7 | 158 | unsigned long last_rx; |
8599b52e | 159 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 160 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 161 | s8 new_link; |
2d7011ca JP |
162 | u8 backup:1, /* indicates backup slave. Value corresponds with |
163 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
5e5b0665 | 164 | inactive:1, /* indicates inactive slave */ |
165 | should_notify:1; /* indicateds whether the state changed */ | |
5d30530e | 166 | u8 duplex; |
3158bf7d | 167 | u32 original_mtu; |
1da177e4 | 168 | u32 link_failure_count; |
5d30530e | 169 | u32 speed; |
bb1d9123 | 170 | u16 queue_id; |
5d30530e | 171 | u8 perm_hwaddr[ETH_ALEN]; |
3fdddd85 | 172 | struct ad_slave_info *ad_info; |
1da177e4 | 173 | struct tlb_slave_info tlb_info; |
8a8efa22 AW |
174 | #ifdef CONFIG_NET_POLL_CONTROLLER |
175 | struct netpoll *np; | |
176 | #endif | |
07699f9a | 177 | struct kobject kobj; |
1da177e4 LT |
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 | */ |
189 | struct 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; |
a549952a | 194 | bool force_primary; |
1da177e4 | 195 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
196 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
197 | struct slave *); | |
8c0bc550 NA |
198 | /* mode_lock is used for mode-specific locking needs, currently used by: |
199 | * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and | |
200 | * bond_3ad_state_machine_handler() concurrently. | |
201 | * TLB mode (5) - to sync the use and modifications of its hash table | |
202 | * ALB mode (6) - to sync the use and modifications of its hash table | |
203 | */ | |
b7435628 | 204 | spinlock_t mode_lock; |
ad246c99 | 205 | u8 send_peer_notif; |
4f5474e7 | 206 | u8 igmp_retrans; |
1da177e4 LT |
207 | #ifdef CONFIG_PROC_FS |
208 | struct proc_dir_entry *proc_entry; | |
209 | char proc_file_name[IFNAMSIZ]; | |
210 | #endif /* CONFIG_PROC_FS */ | |
211 | struct list_head bond_list; | |
73958329 | 212 | u32 rr_tx_counter; |
1da177e4 LT |
213 | struct ad_bond_info ad_info; |
214 | struct alb_bond_info alb_info; | |
215 | struct bond_params params; | |
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; | |
5a37e8ca | 221 | struct delayed_work mcast_work; |
f073c7ca | 222 | #ifdef CONFIG_DEBUG_FS |
02582e9b | 223 | /* debugging support via debugfs */ |
f073c7ca TI |
224 | struct dentry *debug_dir; |
225 | #endif /* CONFIG_DEBUG_FS */ | |
1da177e4 LT |
226 | }; |
227 | ||
f1c1775a JP |
228 | #define bond_slave_get_rcu(dev) \ |
229 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
230 | ||
471cb5a3 JP |
231 | #define bond_slave_get_rtnl(dev) \ |
232 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
233 | ||
fbd929f2 | 234 | struct bond_vlan_tag { |
235 | __be16 vlan_proto; | |
236 | unsigned short vlan_id; | |
237 | }; | |
238 | ||
1da177e4 LT |
239 | /** |
240 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
241 | * | |
242 | * Caller must hold bond lock for read | |
243 | */ | |
4ec952b8 | 244 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
245 | struct net_device *slave_dev) | |
1da177e4 | 246 | { |
46bb4807 | 247 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
1da177e4 LT |
248 | } |
249 | ||
cceb904f | 250 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 251 | { |
471cb5a3 | 252 | return slave->bond; |
1da177e4 LT |
253 | } |
254 | ||
d1e2e5cd VF |
255 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
256 | { | |
01844098 VF |
257 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
258 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; | |
d1e2e5cd VF |
259 | } |
260 | ||
58402054 HE |
261 | static inline bool bond_is_lb(const struct bonding *bond) |
262 | { | |
01844098 VF |
263 | return BOND_MODE(bond) == BOND_MODE_TLB || |
264 | BOND_MODE(bond) == BOND_MODE_ALB; | |
58402054 HE |
265 | } |
266 | ||
6b794c1c MB |
267 | static inline bool bond_is_nondyn_tlb(const struct bonding *bond) |
268 | { | |
269 | return (BOND_MODE(bond) == BOND_MODE_TLB) && | |
270 | (bond->params.tlb_dynamic_lb == 0); | |
271 | } | |
272 | ||
267bed77 VF |
273 | static inline bool bond_mode_uses_arp(int mode) |
274 | { | |
275 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && | |
276 | mode != BOND_MODE_ALB; | |
277 | } | |
278 | ||
ec0865a9 VF |
279 | static inline bool bond_mode_uses_primary(int mode) |
280 | { | |
281 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || | |
282 | mode == BOND_MODE_ALB; | |
283 | } | |
284 | ||
285 | static inline bool bond_uses_primary(struct bonding *bond) | |
286 | { | |
01844098 | 287 | return bond_mode_uses_primary(BOND_MODE(bond)); |
ec0865a9 VF |
288 | } |
289 | ||
b6adc610 VF |
290 | static inline bool bond_slave_is_up(struct slave *slave) |
291 | { | |
292 | return netif_running(slave->dev) && netif_carrier_ok(slave->dev); | |
293 | } | |
294 | ||
e30bc066 JP |
295 | static inline void bond_set_active_slave(struct slave *slave) |
296 | { | |
1d3ee88a | 297 | if (slave->backup) { |
298 | slave->backup = 0; | |
072256d1 | 299 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 300 | } |
e30bc066 JP |
301 | } |
302 | ||
303 | static inline void bond_set_backup_slave(struct slave *slave) | |
304 | { | |
1d3ee88a | 305 | if (!slave->backup) { |
306 | slave->backup = 1; | |
072256d1 | 307 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 308 | } |
e30bc066 JP |
309 | } |
310 | ||
5e5b0665 | 311 | static inline void bond_set_slave_state(struct slave *slave, |
312 | int slave_state, bool notify) | |
313 | { | |
314 | if (slave->backup == slave_state) | |
315 | return; | |
316 | ||
317 | slave->backup = slave_state; | |
318 | if (notify) { | |
072256d1 | 319 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
5e5b0665 | 320 | slave->should_notify = 0; |
321 | } else { | |
322 | if (slave->should_notify) | |
323 | slave->should_notify = 0; | |
324 | else | |
325 | slave->should_notify = 1; | |
326 | } | |
327 | } | |
328 | ||
6fde8f03 DT |
329 | static inline void bond_slave_state_change(struct bonding *bond) |
330 | { | |
331 | struct list_head *iter; | |
332 | struct slave *tmp; | |
333 | ||
334 | bond_for_each_slave(bond, tmp, iter) { | |
335 | if (tmp->link == BOND_LINK_UP) | |
336 | bond_set_active_slave(tmp); | |
337 | else if (tmp->link == BOND_LINK_DOWN) | |
338 | bond_set_backup_slave(tmp); | |
339 | } | |
340 | } | |
341 | ||
b0929915 | 342 | static inline void bond_slave_state_notify(struct bonding *bond) |
343 | { | |
344 | struct list_head *iter; | |
345 | struct slave *tmp; | |
346 | ||
347 | bond_for_each_slave(bond, tmp, iter) { | |
348 | if (tmp->should_notify) { | |
072256d1 | 349 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 350 | tmp->should_notify = 0; |
351 | } | |
352 | } | |
353 | } | |
354 | ||
e30bc066 JP |
355 | static inline int bond_slave_state(struct slave *slave) |
356 | { | |
357 | return slave->backup; | |
358 | } | |
359 | ||
360 | static inline bool bond_is_active_slave(struct slave *slave) | |
361 | { | |
362 | return !bond_slave_state(slave); | |
363 | } | |
364 | ||
891ab54d VF |
365 | static inline bool bond_slave_can_tx(struct slave *slave) |
366 | { | |
367 | return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && | |
368 | bond_is_active_slave(slave); | |
369 | } | |
370 | ||
a549952a JP |
371 | #define BOND_PRI_RESELECT_ALWAYS 0 |
372 | #define BOND_PRI_RESELECT_BETTER 1 | |
373 | #define BOND_PRI_RESELECT_FAILURE 2 | |
374 | ||
3915c1e8 JV |
375 | #define BOND_FOM_NONE 0 |
376 | #define BOND_FOM_ACTIVE 1 | |
377 | #define BOND_FOM_FOLLOW 2 | |
378 | ||
8599b52e VF |
379 | #define BOND_ARP_TARGETS_ANY 0 |
380 | #define BOND_ARP_TARGETS_ALL 1 | |
381 | ||
f5b2b966 JV |
382 | #define BOND_ARP_VALIDATE_NONE 0 |
383 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
384 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
385 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
386 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
387 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
388 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
389 | BOND_ARP_FILTER) | |
390 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
391 | BOND_ARP_FILTER) | |
f5b2b966 | 392 | |
5e5b0665 | 393 | #define BOND_SLAVE_NOTIFY_NOW true |
394 | #define BOND_SLAVE_NOTIFY_LATER false | |
395 | ||
079ca7da AB |
396 | static inline int slave_do_arp_validate(struct bonding *bond, |
397 | struct slave *slave) | |
f5b2b966 | 398 | { |
e30bc066 | 399 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
400 | } |
401 | ||
bedabf90 | 402 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
896149ff VF |
403 | { |
404 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
405 | } | |
406 | ||
2807a9fe VF |
407 | static inline int bond_is_ip_target_ok(__be32 addr) |
408 | { | |
409 | return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); | |
410 | } | |
411 | ||
8599b52e VF |
412 | /* Get the oldest arp which we've received on this slave for bond's |
413 | * arp_targets. | |
414 | */ | |
415 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
416 | struct slave *slave) | |
417 | { | |
418 | int i = 1; | |
419 | unsigned long ret = slave->target_last_arp_rx[0]; | |
420 | ||
421 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
422 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
423 | ret = slave->target_last_arp_rx[i]; | |
424 | ||
425 | return ret; | |
426 | } | |
427 | ||
079ca7da | 428 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 429 | struct slave *slave) |
f5b2b966 | 430 | { |
9f242738 VF |
431 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
432 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 433 | |
49f17de7 | 434 | return slave->last_rx; |
f5b2b966 JV |
435 | } |
436 | ||
8a8efa22 AW |
437 | #ifdef CONFIG_NET_POLL_CONTROLLER |
438 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
439 | struct sk_buff *skb) | |
440 | { | |
441 | struct netpoll *np = slave->np; | |
442 | ||
443 | if (np) | |
444 | netpoll_send_skb(np, skb); | |
445 | } | |
446 | #else | |
447 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
448 | struct sk_buff *skb) | |
449 | { | |
450 | } | |
451 | #endif | |
452 | ||
5e5b0665 | 453 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
454 | bool notify) | |
1da177e4 | 455 | { |
471cb5a3 | 456 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 457 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 458 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 459 | slave->inactive = 1; |
1da177e4 LT |
460 | } |
461 | ||
5e5b0665 | 462 | static inline void bond_set_slave_active_flags(struct slave *slave, |
463 | bool notify) | |
1da177e4 | 464 | { |
5e5b0665 | 465 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
466 | slave->inactive = 0; |
467 | } | |
468 | ||
469 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
470 | { | |
471 | return slave->inactive; | |
1da177e4 LT |
472 | } |
473 | ||
eaddcd76 AG |
474 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
475 | { | |
476 | struct in_device *in_dev; | |
477 | __be32 addr = 0; | |
478 | ||
479 | rcu_read_lock(); | |
480 | in_dev = __in_dev_get_rcu(dev); | |
481 | ||
482 | if (in_dev) | |
b601fa19 ND |
483 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
484 | RT_SCOPE_HOST); | |
eaddcd76 AG |
485 | rcu_read_unlock(); |
486 | return addr; | |
487 | } | |
488 | ||
31924325 | 489 | struct bond_net { |
490 | struct net *net; /* Associated network namespace */ | |
491 | struct list_head dev_list; | |
492 | #ifdef CONFIG_PROC_FS | |
493 | struct proc_dir_entry *proc_dir; | |
494 | #endif | |
495 | struct class_attribute class_attr_bonding_masters; | |
496 | }; | |
4c22400a | 497 | |
5bb9e0b5 | 498 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 499 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 500 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
501 | int bond_create_sysfs(struct bond_net *net); |
502 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 503 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 504 | int bond_sysfs_slave_add(struct slave *slave); |
505 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
506 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
507 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 508 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
a77b5325 MW |
509 | void bond_select_active_slave(struct bonding *bond); |
510 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
511 | void bond_create_debugfs(void); |
512 | void bond_destroy_debugfs(void); | |
513 | void bond_debug_register(struct bonding *bond); | |
514 | void bond_debug_unregister(struct bonding *bond); | |
515 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 516 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
517 | void bond_setup(struct net_device *bond_dev); |
518 | unsigned int bond_get_num_tx_queues(void); | |
519 | int bond_netlink_init(void); | |
520 | void bond_netlink_fini(void); | |
752d48b5 | 521 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
07699f9a | 522 | const char *bond_slave_link_status(s8 link); |
3e403a77 VF |
523 | struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, |
524 | struct net_device *end_dev, | |
525 | int level); | |
1da177e4 | 526 | |
bd33acc3 AW |
527 | #ifdef CONFIG_PROC_FS |
528 | void bond_create_proc_entry(struct bonding *bond); | |
529 | void bond_remove_proc_entry(struct bonding *bond); | |
530 | void bond_create_proc_dir(struct bond_net *bn); | |
531 | void bond_destroy_proc_dir(struct bond_net *bn); | |
532 | #else | |
533 | static inline void bond_create_proc_entry(struct bonding *bond) | |
534 | { | |
535 | } | |
536 | ||
537 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
538 | { | |
539 | } | |
540 | ||
541 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
542 | { | |
543 | } | |
544 | ||
545 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
546 | { | |
547 | } | |
548 | #endif | |
549 | ||
567b871e | 550 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
551 | const u8 *mac) | |
552 | { | |
9caff1e7 | 553 | struct list_head *iter; |
567b871e | 554 | struct slave *tmp; |
555 | ||
9caff1e7 | 556 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 557 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
558 | return tmp; | |
559 | ||
560 | return NULL; | |
561 | } | |
bd33acc3 | 562 | |
28c71926 | 563 | /* Caller must hold rcu_read_lock() for read */ |
564 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
565 | const u8 *mac) | |
566 | { | |
567 | struct list_head *iter; | |
568 | struct slave *tmp; | |
569 | ||
570 | bond_for_each_slave_rcu(bond, tmp, iter) | |
571 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
572 | return tmp; | |
573 | ||
574 | return NULL; | |
575 | } | |
576 | ||
14af9963 VY |
577 | /* Caller must hold rcu_read_lock() for read */ |
578 | static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) | |
579 | { | |
580 | struct list_head *iter; | |
581 | struct slave *tmp; | |
582 | struct netdev_hw_addr *ha; | |
583 | ||
584 | bond_for_each_slave_rcu(bond, tmp, iter) | |
585 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
586 | return true; | |
587 | ||
588 | if (netdev_uc_empty(bond->dev)) | |
589 | return false; | |
590 | ||
591 | netdev_for_each_uc_addr(ha, bond->dev) | |
592 | if (ether_addr_equal_64bits(mac, ha->addr)) | |
593 | return true; | |
594 | ||
595 | return false; | |
596 | } | |
597 | ||
87a7b84b VF |
598 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
599 | * Returns -1 if not found, index if found | |
600 | */ | |
601 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
602 | { | |
603 | int i; | |
604 | ||
605 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
606 | if (targets[i] == ip) | |
607 | return i; | |
608 | else if (targets[i] == 0) | |
609 | break; | |
610 | ||
611 | return -1; | |
612 | } | |
613 | ||
b2259672 | 614 | /* exported from bond_main.c */ |
ec87fd3b | 615 | extern int bond_net_id; |
e97fd7c6 | 616 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
617 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
618 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 619 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 620 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 621 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
622 | extern struct bond_parm_tbl ad_select_tbl[]; |
623 | ||
0a2a78c4 JP |
624 | /* exported from bond_netlink.c */ |
625 | extern struct rtnl_link_ops bond_link_ops; | |
626 | ||
1da177e4 | 627 | #endif /* _LINUX_BONDING_H */ |