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 | #define IS_UP(dev) \ |
44 | ((((dev)->flags & IFF_UP) == IFF_UP) && \ | |
45 | netif_running(dev) && \ | |
46 | netif_carrier_ok(dev)) | |
47 | ||
1da177e4 LT |
48 | /* |
49 | * Checks whether slave is ready for transmit. | |
50 | */ | |
51 | #define SLAVE_IS_OK(slave) \ | |
52 | (((slave)->dev->flags & IFF_UP) && \ | |
53 | netif_running((slave)->dev) && \ | |
54 | ((slave)->link == BOND_LINK_UP) && \ | |
e30bc066 | 55 | bond_is_active_slave(slave)) |
1da177e4 | 56 | |
f9de11a1 WW |
57 | #define IS_IP_TARGET_UNUSABLE_ADDRESS(a) \ |
58 | ((htonl(INADDR_BROADCAST) == a) || \ | |
59 | ipv4_is_zeronet(a)) | |
1da177e4 LT |
60 | /* |
61 | * Less bad way to call ioctl from within the kernel; this needs to be | |
62 | * done some other way to get the call out of interrupt context. | |
63 | * Needs "ioctl" variable to be supplied by calling context. | |
64 | */ | |
65 | #define IOCTL(dev, arg, cmd) ({ \ | |
66 | int res = 0; \ | |
67 | mm_segment_t fs = get_fs(); \ | |
68 | set_fs(get_ds()); \ | |
69 | res = ioctl(dev, arg, cmd); \ | |
70 | set_fs(fs); \ | |
71 | res; }) | |
72 | ||
01844098 VF |
73 | #define BOND_MODE(bond) ((bond)->params.mode) |
74 | ||
dec1e90e | 75 | /* slave list primitives */ |
5a52405a VF |
76 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
77 | ||
78 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 79 | |
dec1e90e | 80 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
81 | #define bond_first_slave(bond) \ | |
5a52405a VF |
82 | (bond_has_slaves(bond) ? \ |
83 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
84 | NULL) | |
dec1e90e | 85 | #define bond_last_slave(bond) \ |
5a52405a VF |
86 | (bond_has_slaves(bond) ? \ |
87 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
88 | NULL) | |
dec1e90e | 89 | |
e001bfad | 90 | /* Caller must have rcu_read_lock */ |
91 | #define bond_first_slave_rcu(bond) \ | |
92 | netdev_lower_get_first_private_rcu(bond->dev) | |
93 | ||
5a52405a VF |
94 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
95 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 96 | |
1da177e4 | 97 | /** |
dec1e90e | 98 | * bond_for_each_slave - iterate over all slaves |
99 | * @bond: the bond holding this list | |
100 | * @pos: current slave | |
9caff1e7 | 101 | * @iter: list_head * iterator |
1da177e4 LT |
102 | * |
103 | * Caller must hold bond->lock | |
104 | */ | |
9caff1e7 VF |
105 | #define bond_for_each_slave(bond, pos, iter) \ |
106 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 107 | |
278b2083 | 108 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
109 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
110 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 111 | |
e843fa50 | 112 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 113 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
114 | |
115 | static inline void block_netpoll_tx(void) | |
116 | { | |
fb4fa76a | 117 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
118 | } |
119 | ||
120 | static inline void unblock_netpoll_tx(void) | |
121 | { | |
fb4fa76a | 122 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
123 | } |
124 | ||
125 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
126 | { | |
080e4130 | 127 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 128 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
129 | return 0; |
130 | } | |
131 | #else | |
132 | #define block_netpoll_tx() | |
133 | #define unblock_netpoll_tx() | |
134 | #define is_netpoll_tx_blocked(dev) (0) | |
135 | #endif | |
136 | ||
1da177e4 LT |
137 | struct bond_params { |
138 | int mode; | |
169a3e66 | 139 | int xmit_policy; |
1da177e4 | 140 | int miimon; |
ad246c99 | 141 | u8 num_peer_notif; |
1da177e4 | 142 | int arp_interval; |
f5b2b966 | 143 | int arp_validate; |
8599b52e | 144 | int arp_all_targets; |
1da177e4 | 145 | int use_carrier; |
dd957c57 | 146 | int fail_over_mac; |
1da177e4 LT |
147 | int updelay; |
148 | int downdelay; | |
149 | int lacp_fast; | |
655f8919 | 150 | unsigned int min_links; |
fd989c83 | 151 | int ad_select; |
1da177e4 | 152 | char primary[IFNAMSIZ]; |
a549952a | 153 | int primary_reselect; |
d3bb52b0 | 154 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 155 | int tx_queues; |
ebd8e497 | 156 | int all_slaves_active; |
c2952c31 | 157 | int resend_igmp; |
7eacd038 | 158 | int lp_interval; |
73958329 | 159 | int packets_per_slave; |
e9f0fb88 | 160 | int tlb_dynamic_lb; |
809fa972 | 161 | struct reciprocal_value reciprocal_packets_per_slave; |
1da177e4 LT |
162 | }; |
163 | ||
12479f9a MW |
164 | struct bond_parm_tbl { |
165 | char *modename; | |
166 | int mode; | |
167 | }; | |
168 | ||
1da177e4 | 169 | struct slave { |
e944ef79 | 170 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 171 | struct bonding *bond; /* our master */ |
8bb5f96b | 172 | int delay; |
8e603460 VF |
173 | /* all three in jiffies */ |
174 | unsigned long last_link_up; | |
49f17de7 | 175 | unsigned long last_rx; |
8599b52e | 176 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 177 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 178 | s8 new_link; |
2d7011ca JP |
179 | u8 backup:1, /* indicates backup slave. Value corresponds with |
180 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
5e5b0665 | 181 | inactive:1, /* indicates inactive slave */ |
182 | should_notify:1; /* indicateds whether the state changed */ | |
5d30530e | 183 | u8 duplex; |
3158bf7d | 184 | u32 original_mtu; |
1da177e4 | 185 | u32 link_failure_count; |
5d30530e | 186 | u32 speed; |
bb1d9123 | 187 | u16 queue_id; |
5d30530e | 188 | u8 perm_hwaddr[ETH_ALEN]; |
3fdddd85 | 189 | struct ad_slave_info *ad_info; |
1da177e4 | 190 | struct tlb_slave_info tlb_info; |
8a8efa22 AW |
191 | #ifdef CONFIG_NET_POLL_CONTROLLER |
192 | struct netpoll *np; | |
193 | #endif | |
07699f9a | 194 | struct kobject kobj; |
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 | ||
fbd929f2 | 251 | struct bond_vlan_tag { |
252 | __be16 vlan_proto; | |
253 | unsigned short vlan_id; | |
254 | }; | |
255 | ||
1da177e4 LT |
256 | /** |
257 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
258 | * | |
259 | * Caller must hold bond lock for read | |
260 | */ | |
4ec952b8 | 261 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
262 | struct net_device *slave_dev) | |
1da177e4 | 263 | { |
46bb4807 | 264 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
1da177e4 LT |
265 | } |
266 | ||
cceb904f | 267 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 268 | { |
471cb5a3 | 269 | if (!slave || !slave->bond) |
1da177e4 | 270 | return NULL; |
471cb5a3 | 271 | return slave->bond; |
1da177e4 LT |
272 | } |
273 | ||
d1e2e5cd VF |
274 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
275 | { | |
01844098 VF |
276 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
277 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; | |
d1e2e5cd VF |
278 | } |
279 | ||
58402054 HE |
280 | static inline bool bond_is_lb(const struct bonding *bond) |
281 | { | |
01844098 VF |
282 | return BOND_MODE(bond) == BOND_MODE_TLB || |
283 | BOND_MODE(bond) == BOND_MODE_ALB; | |
58402054 HE |
284 | } |
285 | ||
267bed77 VF |
286 | static inline bool bond_mode_uses_arp(int mode) |
287 | { | |
288 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && | |
289 | mode != BOND_MODE_ALB; | |
290 | } | |
291 | ||
ec0865a9 VF |
292 | static inline bool bond_mode_uses_primary(int mode) |
293 | { | |
294 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || | |
295 | mode == BOND_MODE_ALB; | |
296 | } | |
297 | ||
298 | static inline bool bond_uses_primary(struct bonding *bond) | |
299 | { | |
01844098 | 300 | return bond_mode_uses_primary(BOND_MODE(bond)); |
ec0865a9 VF |
301 | } |
302 | ||
e30bc066 JP |
303 | static inline void bond_set_active_slave(struct slave *slave) |
304 | { | |
1d3ee88a | 305 | if (slave->backup) { |
306 | slave->backup = 0; | |
072256d1 | 307 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 308 | } |
e30bc066 JP |
309 | } |
310 | ||
311 | static inline void bond_set_backup_slave(struct slave *slave) | |
312 | { | |
1d3ee88a | 313 | if (!slave->backup) { |
314 | slave->backup = 1; | |
072256d1 | 315 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 316 | } |
e30bc066 JP |
317 | } |
318 | ||
5e5b0665 | 319 | static inline void bond_set_slave_state(struct slave *slave, |
320 | int slave_state, bool notify) | |
321 | { | |
322 | if (slave->backup == slave_state) | |
323 | return; | |
324 | ||
325 | slave->backup = slave_state; | |
326 | if (notify) { | |
072256d1 | 327 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
5e5b0665 | 328 | slave->should_notify = 0; |
329 | } else { | |
330 | if (slave->should_notify) | |
331 | slave->should_notify = 0; | |
332 | else | |
333 | slave->should_notify = 1; | |
334 | } | |
335 | } | |
336 | ||
6fde8f03 DT |
337 | static inline void bond_slave_state_change(struct bonding *bond) |
338 | { | |
339 | struct list_head *iter; | |
340 | struct slave *tmp; | |
341 | ||
342 | bond_for_each_slave(bond, tmp, iter) { | |
343 | if (tmp->link == BOND_LINK_UP) | |
344 | bond_set_active_slave(tmp); | |
345 | else if (tmp->link == BOND_LINK_DOWN) | |
346 | bond_set_backup_slave(tmp); | |
347 | } | |
348 | } | |
349 | ||
b0929915 | 350 | static inline void bond_slave_state_notify(struct bonding *bond) |
351 | { | |
352 | struct list_head *iter; | |
353 | struct slave *tmp; | |
354 | ||
355 | bond_for_each_slave(bond, tmp, iter) { | |
356 | if (tmp->should_notify) { | |
072256d1 | 357 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 358 | tmp->should_notify = 0; |
359 | } | |
360 | } | |
361 | } | |
362 | ||
e30bc066 JP |
363 | static inline int bond_slave_state(struct slave *slave) |
364 | { | |
365 | return slave->backup; | |
366 | } | |
367 | ||
368 | static inline bool bond_is_active_slave(struct slave *slave) | |
369 | { | |
370 | return !bond_slave_state(slave); | |
371 | } | |
372 | ||
a549952a JP |
373 | #define BOND_PRI_RESELECT_ALWAYS 0 |
374 | #define BOND_PRI_RESELECT_BETTER 1 | |
375 | #define BOND_PRI_RESELECT_FAILURE 2 | |
376 | ||
3915c1e8 JV |
377 | #define BOND_FOM_NONE 0 |
378 | #define BOND_FOM_ACTIVE 1 | |
379 | #define BOND_FOM_FOLLOW 2 | |
380 | ||
8599b52e VF |
381 | #define BOND_ARP_TARGETS_ANY 0 |
382 | #define BOND_ARP_TARGETS_ALL 1 | |
383 | ||
f5b2b966 JV |
384 | #define BOND_ARP_VALIDATE_NONE 0 |
385 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
386 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
387 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
388 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
389 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
390 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
391 | BOND_ARP_FILTER) | |
392 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
393 | BOND_ARP_FILTER) | |
f5b2b966 | 394 | |
5e5b0665 | 395 | #define BOND_SLAVE_NOTIFY_NOW true |
396 | #define BOND_SLAVE_NOTIFY_LATER false | |
397 | ||
079ca7da AB |
398 | static inline int slave_do_arp_validate(struct bonding *bond, |
399 | struct slave *slave) | |
f5b2b966 | 400 | { |
e30bc066 | 401 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
402 | } |
403 | ||
bedabf90 | 404 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
896149ff VF |
405 | { |
406 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
407 | } | |
408 | ||
8599b52e VF |
409 | /* Get the oldest arp which we've received on this slave for bond's |
410 | * arp_targets. | |
411 | */ | |
412 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
413 | struct slave *slave) | |
414 | { | |
415 | int i = 1; | |
416 | unsigned long ret = slave->target_last_arp_rx[0]; | |
417 | ||
418 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
419 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
420 | ret = slave->target_last_arp_rx[i]; | |
421 | ||
422 | return ret; | |
423 | } | |
424 | ||
079ca7da | 425 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 426 | struct slave *slave) |
f5b2b966 | 427 | { |
9f242738 VF |
428 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
429 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 430 | |
49f17de7 | 431 | return slave->last_rx; |
f5b2b966 JV |
432 | } |
433 | ||
8a8efa22 AW |
434 | #ifdef CONFIG_NET_POLL_CONTROLLER |
435 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
436 | struct sk_buff *skb) | |
437 | { | |
438 | struct netpoll *np = slave->np; | |
439 | ||
440 | if (np) | |
441 | netpoll_send_skb(np, skb); | |
442 | } | |
443 | #else | |
444 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
445 | struct sk_buff *skb) | |
446 | { | |
447 | } | |
448 | #endif | |
449 | ||
5e5b0665 | 450 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
451 | bool notify) | |
1da177e4 | 452 | { |
471cb5a3 | 453 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 454 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 455 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 456 | slave->inactive = 1; |
1da177e4 LT |
457 | } |
458 | ||
5e5b0665 | 459 | static inline void bond_set_slave_active_flags(struct slave *slave, |
460 | bool notify) | |
1da177e4 | 461 | { |
5e5b0665 | 462 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
463 | slave->inactive = 0; |
464 | } | |
465 | ||
466 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
467 | { | |
468 | return slave->inactive; | |
1da177e4 LT |
469 | } |
470 | ||
eaddcd76 AG |
471 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
472 | { | |
473 | struct in_device *in_dev; | |
474 | __be32 addr = 0; | |
475 | ||
476 | rcu_read_lock(); | |
477 | in_dev = __in_dev_get_rcu(dev); | |
478 | ||
479 | if (in_dev) | |
b601fa19 ND |
480 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
481 | RT_SCOPE_HOST); | |
eaddcd76 AG |
482 | rcu_read_unlock(); |
483 | return addr; | |
484 | } | |
485 | ||
15077228 NA |
486 | static inline bool slave_can_tx(struct slave *slave) |
487 | { | |
488 | if (IS_UP(slave->dev) && slave->link == BOND_LINK_UP && | |
489 | bond_is_active_slave(slave)) | |
490 | return true; | |
491 | else | |
492 | return false; | |
493 | } | |
494 | ||
31924325 | 495 | struct bond_net { |
496 | struct net *net; /* Associated network namespace */ | |
497 | struct list_head dev_list; | |
498 | #ifdef CONFIG_PROC_FS | |
499 | struct proc_dir_entry *proc_dir; | |
500 | #endif | |
501 | struct class_attribute class_attr_bonding_masters; | |
502 | }; | |
4c22400a | 503 | |
5bb9e0b5 | 504 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 505 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 506 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
507 | int bond_create_sysfs(struct bond_net *net); |
508 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 509 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 510 | int bond_sysfs_slave_add(struct slave *slave); |
511 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
512 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
513 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 514 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
a77b5325 MW |
515 | void bond_select_active_slave(struct bonding *bond); |
516 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
517 | void bond_create_debugfs(void); |
518 | void bond_destroy_debugfs(void); | |
519 | void bond_debug_register(struct bonding *bond); | |
520 | void bond_debug_unregister(struct bonding *bond); | |
521 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 522 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
523 | void bond_setup(struct net_device *bond_dev); |
524 | unsigned int bond_get_num_tx_queues(void); | |
525 | int bond_netlink_init(void); | |
526 | void bond_netlink_fini(void); | |
752d48b5 JP |
527 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
528 | struct net_device *bond_option_active_slave_get(struct bonding *bond); | |
07699f9a | 529 | const char *bond_slave_link_status(s8 link); |
1da177e4 | 530 | |
bd33acc3 AW |
531 | #ifdef CONFIG_PROC_FS |
532 | void bond_create_proc_entry(struct bonding *bond); | |
533 | void bond_remove_proc_entry(struct bonding *bond); | |
534 | void bond_create_proc_dir(struct bond_net *bn); | |
535 | void bond_destroy_proc_dir(struct bond_net *bn); | |
536 | #else | |
537 | static inline void bond_create_proc_entry(struct bonding *bond) | |
538 | { | |
539 | } | |
540 | ||
541 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
542 | { | |
543 | } | |
544 | ||
545 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
546 | { | |
547 | } | |
548 | ||
549 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
550 | { | |
551 | } | |
552 | #endif | |
553 | ||
567b871e | 554 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
555 | const u8 *mac) | |
556 | { | |
9caff1e7 | 557 | struct list_head *iter; |
567b871e | 558 | struct slave *tmp; |
559 | ||
9caff1e7 | 560 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 561 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
562 | return tmp; | |
563 | ||
564 | return NULL; | |
565 | } | |
bd33acc3 | 566 | |
28c71926 | 567 | /* Caller must hold rcu_read_lock() for read */ |
568 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
569 | const u8 *mac) | |
570 | { | |
571 | struct list_head *iter; | |
572 | struct slave *tmp; | |
573 | ||
574 | bond_for_each_slave_rcu(bond, tmp, iter) | |
575 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
576 | return tmp; | |
577 | ||
578 | return NULL; | |
579 | } | |
580 | ||
87a7b84b VF |
581 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
582 | * Returns -1 if not found, index if found | |
583 | */ | |
584 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
585 | { | |
586 | int i; | |
587 | ||
588 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
589 | if (targets[i] == ip) | |
590 | return i; | |
591 | else if (targets[i] == 0) | |
592 | break; | |
593 | ||
594 | return -1; | |
595 | } | |
596 | ||
b2259672 | 597 | /* exported from bond_main.c */ |
ec87fd3b | 598 | extern int bond_net_id; |
e97fd7c6 | 599 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
600 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
601 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 602 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 603 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 604 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
605 | extern struct bond_parm_tbl ad_select_tbl[]; |
606 | ||
0a2a78c4 JP |
607 | /* exported from bond_netlink.c */ |
608 | extern struct rtnl_link_ops bond_link_ops; | |
609 | ||
1da177e4 | 610 | #endif /* _LINUX_BONDING_H */ |