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 LT |
56 | |
57 | ||
58 | #define USES_PRIMARY(mode) \ | |
59 | (((mode) == BOND_MODE_ACTIVEBACKUP) || \ | |
60 | ((mode) == BOND_MODE_TLB) || \ | |
61 | ((mode) == BOND_MODE_ALB)) | |
62 | ||
fe9d04af | 63 | #define BOND_NO_USES_ARP(mode) \ |
64 | (((mode) == BOND_MODE_8023AD) || \ | |
65 | ((mode) == BOND_MODE_TLB) || \ | |
66 | ((mode) == BOND_MODE_ALB)) | |
67 | ||
bb1d9123 AG |
68 | #define TX_QUEUE_OVERRIDE(mode) \ |
69 | (((mode) == BOND_MODE_ACTIVEBACKUP) || \ | |
70 | ((mode) == BOND_MODE_ROUNDROBIN)) | |
72be35fe JP |
71 | |
72 | #define BOND_MODE_IS_LB(mode) \ | |
73 | (((mode) == BOND_MODE_TLB) || \ | |
74 | ((mode) == BOND_MODE_ALB)) | |
75 | ||
f9de11a1 WW |
76 | #define IS_IP_TARGET_UNUSABLE_ADDRESS(a) \ |
77 | ((htonl(INADDR_BROADCAST) == a) || \ | |
78 | ipv4_is_zeronet(a)) | |
1da177e4 LT |
79 | /* |
80 | * Less bad way to call ioctl from within the kernel; this needs to be | |
81 | * done some other way to get the call out of interrupt context. | |
82 | * Needs "ioctl" variable to be supplied by calling context. | |
83 | */ | |
84 | #define IOCTL(dev, arg, cmd) ({ \ | |
85 | int res = 0; \ | |
86 | mm_segment_t fs = get_fs(); \ | |
87 | set_fs(get_ds()); \ | |
88 | res = ioctl(dev, arg, cmd); \ | |
89 | set_fs(fs); \ | |
90 | res; }) | |
91 | ||
dec1e90e | 92 | /* slave list primitives */ |
5a52405a VF |
93 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
94 | ||
95 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 96 | |
dec1e90e | 97 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
98 | #define bond_first_slave(bond) \ | |
5a52405a VF |
99 | (bond_has_slaves(bond) ? \ |
100 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
101 | NULL) | |
dec1e90e | 102 | #define bond_last_slave(bond) \ |
5a52405a VF |
103 | (bond_has_slaves(bond) ? \ |
104 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
105 | NULL) | |
dec1e90e | 106 | |
e001bfad | 107 | /* Caller must have rcu_read_lock */ |
108 | #define bond_first_slave_rcu(bond) \ | |
109 | netdev_lower_get_first_private_rcu(bond->dev) | |
110 | ||
5a52405a VF |
111 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
112 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 113 | |
1da177e4 | 114 | /** |
dec1e90e | 115 | * bond_for_each_slave - iterate over all slaves |
116 | * @bond: the bond holding this list | |
117 | * @pos: current slave | |
9caff1e7 | 118 | * @iter: list_head * iterator |
1da177e4 LT |
119 | * |
120 | * Caller must hold bond->lock | |
121 | */ | |
9caff1e7 VF |
122 | #define bond_for_each_slave(bond, pos, iter) \ |
123 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 124 | |
278b2083 | 125 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
126 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
127 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 128 | |
e843fa50 | 129 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 130 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
131 | |
132 | static inline void block_netpoll_tx(void) | |
133 | { | |
fb4fa76a | 134 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
135 | } |
136 | ||
137 | static inline void unblock_netpoll_tx(void) | |
138 | { | |
fb4fa76a | 139 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
140 | } |
141 | ||
142 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
143 | { | |
080e4130 | 144 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 145 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
146 | return 0; |
147 | } | |
148 | #else | |
149 | #define block_netpoll_tx() | |
150 | #define unblock_netpoll_tx() | |
151 | #define is_netpoll_tx_blocked(dev) (0) | |
152 | #endif | |
153 | ||
1da177e4 LT |
154 | struct bond_params { |
155 | int mode; | |
169a3e66 | 156 | int xmit_policy; |
1da177e4 | 157 | int miimon; |
ad246c99 | 158 | u8 num_peer_notif; |
1da177e4 | 159 | int arp_interval; |
f5b2b966 | 160 | int arp_validate; |
8599b52e | 161 | int arp_all_targets; |
1da177e4 | 162 | int use_carrier; |
dd957c57 | 163 | int fail_over_mac; |
1da177e4 LT |
164 | int updelay; |
165 | int downdelay; | |
166 | int lacp_fast; | |
655f8919 | 167 | unsigned int min_links; |
fd989c83 | 168 | int ad_select; |
1da177e4 | 169 | char primary[IFNAMSIZ]; |
a549952a | 170 | int primary_reselect; |
d3bb52b0 | 171 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 172 | int tx_queues; |
ebd8e497 | 173 | int all_slaves_active; |
c2952c31 | 174 | int resend_igmp; |
7eacd038 | 175 | int lp_interval; |
73958329 | 176 | int packets_per_slave; |
e9f0fb88 | 177 | int tlb_dynamic_lb; |
809fa972 | 178 | struct reciprocal_value reciprocal_packets_per_slave; |
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 */ |
35d48903 | 190 | struct bonding *bond; /* our master */ |
8bb5f96b | 191 | int delay; |
8e603460 VF |
192 | /* all three in jiffies */ |
193 | unsigned long last_link_up; | |
49f17de7 | 194 | unsigned long last_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 */ | |
5e5b0665 | 200 | inactive:1, /* indicates inactive slave */ |
201 | should_notify:1; /* indicateds whether the state changed */ | |
5d30530e | 202 | u8 duplex; |
3158bf7d | 203 | u32 original_mtu; |
1da177e4 | 204 | u32 link_failure_count; |
5d30530e | 205 | u32 speed; |
bb1d9123 | 206 | u16 queue_id; |
5d30530e | 207 | u8 perm_hwaddr[ETH_ALEN]; |
1da177e4 LT |
208 | struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */ |
209 | struct tlb_slave_info tlb_info; | |
8a8efa22 AW |
210 | #ifdef CONFIG_NET_POLL_CONTROLLER |
211 | struct netpoll *np; | |
212 | #endif | |
07699f9a | 213 | struct kobject kobj; |
1da177e4 LT |
214 | }; |
215 | ||
b2220cad JV |
216 | /* |
217 | * Link pseudo-state only used internally by monitors | |
218 | */ | |
219 | #define BOND_LINK_NOCHANGE -1 | |
220 | ||
1da177e4 LT |
221 | /* |
222 | * Here are the locking policies for the two bonding locks: | |
223 | * | |
224 | * 1) Get bond->lock when reading/writing slave list. | |
225 | * 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave. | |
226 | * (It is unnecessary when the write-lock is put with bond->lock.) | |
227 | * 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock | |
228 | * beforehand. | |
229 | */ | |
230 | struct bonding { | |
e944ef79 | 231 | struct net_device *dev; /* first - useful for panic debug */ |
1da177e4 LT |
232 | struct slave *curr_active_slave; |
233 | struct slave *current_arp_slave; | |
234 | struct slave *primary_slave; | |
a549952a | 235 | bool force_primary; |
1da177e4 | 236 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
237 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
238 | struct slave *); | |
1da177e4 LT |
239 | rwlock_t lock; |
240 | rwlock_t curr_slave_lock; | |
ad246c99 | 241 | u8 send_peer_notif; |
4f5474e7 | 242 | u8 igmp_retrans; |
1da177e4 LT |
243 | #ifdef CONFIG_PROC_FS |
244 | struct proc_dir_entry *proc_entry; | |
245 | char proc_file_name[IFNAMSIZ]; | |
246 | #endif /* CONFIG_PROC_FS */ | |
247 | struct list_head bond_list; | |
73958329 | 248 | u32 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 | ||
fbd929f2 | 270 | struct bond_vlan_tag { |
271 | __be16 vlan_proto; | |
272 | unsigned short vlan_id; | |
273 | }; | |
274 | ||
1da177e4 LT |
275 | /** |
276 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
277 | * | |
278 | * Caller must hold bond lock for read | |
279 | */ | |
4ec952b8 | 280 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
281 | struct net_device *slave_dev) | |
1da177e4 | 282 | { |
46bb4807 | 283 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
1da177e4 LT |
284 | } |
285 | ||
cceb904f | 286 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 287 | { |
471cb5a3 | 288 | if (!slave || !slave->bond) |
1da177e4 | 289 | return NULL; |
471cb5a3 | 290 | return slave->bond; |
1da177e4 LT |
291 | } |
292 | ||
58402054 HE |
293 | static inline bool bond_is_lb(const struct bonding *bond) |
294 | { | |
72be35fe | 295 | return BOND_MODE_IS_LB(bond->params.mode); |
58402054 HE |
296 | } |
297 | ||
e30bc066 JP |
298 | static inline void bond_set_active_slave(struct slave *slave) |
299 | { | |
1d3ee88a | 300 | if (slave->backup) { |
301 | slave->backup = 0; | |
072256d1 | 302 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 303 | } |
e30bc066 JP |
304 | } |
305 | ||
306 | static inline void bond_set_backup_slave(struct slave *slave) | |
307 | { | |
1d3ee88a | 308 | if (!slave->backup) { |
309 | slave->backup = 1; | |
072256d1 | 310 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 311 | } |
e30bc066 JP |
312 | } |
313 | ||
5e5b0665 | 314 | static inline void bond_set_slave_state(struct slave *slave, |
315 | int slave_state, bool notify) | |
316 | { | |
317 | if (slave->backup == slave_state) | |
318 | return; | |
319 | ||
320 | slave->backup = slave_state; | |
321 | if (notify) { | |
072256d1 | 322 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
5e5b0665 | 323 | slave->should_notify = 0; |
324 | } else { | |
325 | if (slave->should_notify) | |
326 | slave->should_notify = 0; | |
327 | else | |
328 | slave->should_notify = 1; | |
329 | } | |
330 | } | |
331 | ||
6fde8f03 DT |
332 | static inline void bond_slave_state_change(struct bonding *bond) |
333 | { | |
334 | struct list_head *iter; | |
335 | struct slave *tmp; | |
336 | ||
337 | bond_for_each_slave(bond, tmp, iter) { | |
338 | if (tmp->link == BOND_LINK_UP) | |
339 | bond_set_active_slave(tmp); | |
340 | else if (tmp->link == BOND_LINK_DOWN) | |
341 | bond_set_backup_slave(tmp); | |
342 | } | |
343 | } | |
344 | ||
b0929915 | 345 | static inline void bond_slave_state_notify(struct bonding *bond) |
346 | { | |
347 | struct list_head *iter; | |
348 | struct slave *tmp; | |
349 | ||
350 | bond_for_each_slave(bond, tmp, iter) { | |
351 | if (tmp->should_notify) { | |
072256d1 | 352 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 353 | tmp->should_notify = 0; |
354 | } | |
355 | } | |
356 | } | |
357 | ||
e30bc066 JP |
358 | static inline int bond_slave_state(struct slave *slave) |
359 | { | |
360 | return slave->backup; | |
361 | } | |
362 | ||
363 | static inline bool bond_is_active_slave(struct slave *slave) | |
364 | { | |
365 | return !bond_slave_state(slave); | |
366 | } | |
367 | ||
a549952a JP |
368 | #define BOND_PRI_RESELECT_ALWAYS 0 |
369 | #define BOND_PRI_RESELECT_BETTER 1 | |
370 | #define BOND_PRI_RESELECT_FAILURE 2 | |
371 | ||
3915c1e8 JV |
372 | #define BOND_FOM_NONE 0 |
373 | #define BOND_FOM_ACTIVE 1 | |
374 | #define BOND_FOM_FOLLOW 2 | |
375 | ||
8599b52e VF |
376 | #define BOND_ARP_TARGETS_ANY 0 |
377 | #define BOND_ARP_TARGETS_ALL 1 | |
378 | ||
f5b2b966 JV |
379 | #define BOND_ARP_VALIDATE_NONE 0 |
380 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
381 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
382 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
383 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
384 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
385 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
386 | BOND_ARP_FILTER) | |
387 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
388 | BOND_ARP_FILTER) | |
f5b2b966 | 389 | |
5e5b0665 | 390 | #define BOND_SLAVE_NOTIFY_NOW true |
391 | #define BOND_SLAVE_NOTIFY_LATER false | |
392 | ||
079ca7da AB |
393 | static inline int slave_do_arp_validate(struct bonding *bond, |
394 | struct slave *slave) | |
f5b2b966 | 395 | { |
e30bc066 | 396 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
397 | } |
398 | ||
896149ff VF |
399 | static inline int slave_do_arp_validate_only(struct bonding *bond, |
400 | struct slave *slave) | |
401 | { | |
402 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
403 | } | |
404 | ||
8599b52e VF |
405 | /* Get the oldest arp which we've received on this slave for bond's |
406 | * arp_targets. | |
407 | */ | |
408 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
409 | struct slave *slave) | |
410 | { | |
411 | int i = 1; | |
412 | unsigned long ret = slave->target_last_arp_rx[0]; | |
413 | ||
414 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
415 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
416 | ret = slave->target_last_arp_rx[i]; | |
417 | ||
418 | return ret; | |
419 | } | |
420 | ||
079ca7da | 421 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 422 | struct slave *slave) |
f5b2b966 | 423 | { |
9f242738 VF |
424 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
425 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 426 | |
49f17de7 | 427 | return slave->last_rx; |
f5b2b966 JV |
428 | } |
429 | ||
8a8efa22 AW |
430 | #ifdef CONFIG_NET_POLL_CONTROLLER |
431 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
432 | struct sk_buff *skb) | |
433 | { | |
434 | struct netpoll *np = slave->np; | |
435 | ||
436 | if (np) | |
437 | netpoll_send_skb(np, skb); | |
438 | } | |
439 | #else | |
440 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
441 | struct sk_buff *skb) | |
442 | { | |
443 | } | |
444 | #endif | |
445 | ||
5e5b0665 | 446 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
447 | bool notify) | |
1da177e4 | 448 | { |
471cb5a3 | 449 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 450 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 451 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 452 | slave->inactive = 1; |
1da177e4 LT |
453 | } |
454 | ||
5e5b0665 | 455 | static inline void bond_set_slave_active_flags(struct slave *slave, |
456 | bool notify) | |
1da177e4 | 457 | { |
5e5b0665 | 458 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
459 | slave->inactive = 0; |
460 | } | |
461 | ||
462 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
463 | { | |
464 | return slave->inactive; | |
1da177e4 LT |
465 | } |
466 | ||
eaddcd76 AG |
467 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
468 | { | |
469 | struct in_device *in_dev; | |
470 | __be32 addr = 0; | |
471 | ||
472 | rcu_read_lock(); | |
473 | in_dev = __in_dev_get_rcu(dev); | |
474 | ||
475 | if (in_dev) | |
b601fa19 ND |
476 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
477 | RT_SCOPE_HOST); | |
eaddcd76 AG |
478 | rcu_read_unlock(); |
479 | return addr; | |
480 | } | |
481 | ||
15077228 NA |
482 | static inline bool slave_can_tx(struct slave *slave) |
483 | { | |
484 | if (IS_UP(slave->dev) && slave->link == BOND_LINK_UP && | |
485 | bond_is_active_slave(slave)) | |
486 | return true; | |
487 | else | |
488 | return false; | |
489 | } | |
490 | ||
31924325 | 491 | struct bond_net { |
492 | struct net *net; /* Associated network namespace */ | |
493 | struct list_head dev_list; | |
494 | #ifdef CONFIG_PROC_FS | |
495 | struct proc_dir_entry *proc_dir; | |
496 | #endif | |
497 | struct class_attribute class_attr_bonding_masters; | |
498 | }; | |
4c22400a | 499 | |
5bb9e0b5 | 500 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 501 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 502 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
503 | int bond_create_sysfs(struct bond_net *net); |
504 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 505 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 506 | int bond_sysfs_slave_add(struct slave *slave); |
507 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
508 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
509 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 510 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
a77b5325 MW |
511 | void bond_select_active_slave(struct bonding *bond); |
512 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
513 | void bond_create_debugfs(void); |
514 | void bond_destroy_debugfs(void); | |
515 | void bond_debug_register(struct bonding *bond); | |
516 | void bond_debug_unregister(struct bonding *bond); | |
517 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 518 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
519 | void bond_setup(struct net_device *bond_dev); |
520 | unsigned int bond_get_num_tx_queues(void); | |
521 | int bond_netlink_init(void); | |
522 | void bond_netlink_fini(void); | |
752d48b5 JP |
523 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
524 | struct net_device *bond_option_active_slave_get(struct bonding *bond); | |
07699f9a | 525 | const char *bond_slave_link_status(s8 link); |
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 | ||
87a7b84b VF |
577 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
578 | * Returns -1 if not found, index if found | |
579 | */ | |
580 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
581 | { | |
582 | int i; | |
583 | ||
584 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
585 | if (targets[i] == ip) | |
586 | return i; | |
587 | else if (targets[i] == 0) | |
588 | break; | |
589 | ||
590 | return -1; | |
591 | } | |
592 | ||
b2259672 | 593 | /* exported from bond_main.c */ |
ec87fd3b | 594 | extern int bond_net_id; |
e97fd7c6 | 595 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
596 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
597 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 598 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 599 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 600 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
601 | extern struct bond_parm_tbl ad_select_tbl[]; |
602 | ||
0a2a78c4 JP |
603 | /* exported from bond_netlink.c */ |
604 | extern struct rtnl_link_ops bond_link_ops; | |
605 | ||
1da177e4 | 606 | #endif /* _LINUX_BONDING_H */ |