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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 | ||
1ef8019b DM |
15 | #ifndef _NET_BONDING_H |
16 | #define _NET_BONDING_H | |
1da177e4 LT |
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 | 26 | #include <linux/reciprocal_div.h> |
5f0c5f73 | 27 | #include <linux/if_link.h> |
809fa972 | 28 | |
1ef8019b DM |
29 | #include <net/bond_3ad.h> |
30 | #include <net/bond_alb.h> | |
31 | #include <net/bond_options.h> | |
1da177e4 | 32 | |
1da177e4 LT |
33 | #define BOND_MAX_ARP_TARGETS 16 |
34 | ||
fe9d04af | 35 | #define BOND_DEFAULT_MIIMON 100 |
36 | ||
f87fda00 ED |
37 | #ifndef __long_aligned |
38 | #define __long_aligned __attribute__((aligned((sizeof(long))))) | |
39 | #endif | |
1da177e4 | 40 | |
01844098 VF |
41 | #define BOND_MODE(bond) ((bond)->params.mode) |
42 | ||
dec1e90e | 43 | /* slave list primitives */ |
5a52405a VF |
44 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
45 | ||
46 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 47 | |
dec1e90e | 48 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
49 | #define bond_first_slave(bond) \ | |
5a52405a VF |
50 | (bond_has_slaves(bond) ? \ |
51 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
52 | NULL) | |
dec1e90e | 53 | #define bond_last_slave(bond) \ |
5a52405a VF |
54 | (bond_has_slaves(bond) ? \ |
55 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
56 | NULL) | |
dec1e90e | 57 | |
e001bfad | 58 | /* Caller must have rcu_read_lock */ |
59 | #define bond_first_slave_rcu(bond) \ | |
60 | netdev_lower_get_first_private_rcu(bond->dev) | |
61 | ||
5a52405a VF |
62 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
63 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 64 | |
1da177e4 | 65 | /** |
dec1e90e | 66 | * bond_for_each_slave - iterate over all slaves |
67 | * @bond: the bond holding this list | |
68 | * @pos: current slave | |
9caff1e7 | 69 | * @iter: list_head * iterator |
1da177e4 | 70 | * |
87163ef9 | 71 | * Caller must hold RTNL |
1da177e4 | 72 | */ |
9caff1e7 VF |
73 | #define bond_for_each_slave(bond, pos, iter) \ |
74 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 75 | |
278b2083 | 76 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
77 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
78 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 79 | |
e843fa50 | 80 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 81 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
82 | |
83 | static inline void block_netpoll_tx(void) | |
84 | { | |
fb4fa76a | 85 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
86 | } |
87 | ||
88 | static inline void unblock_netpoll_tx(void) | |
89 | { | |
fb4fa76a | 90 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
91 | } |
92 | ||
93 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
94 | { | |
080e4130 | 95 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 96 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
97 | return 0; |
98 | } | |
99 | #else | |
100 | #define block_netpoll_tx() | |
101 | #define unblock_netpoll_tx() | |
102 | #define is_netpoll_tx_blocked(dev) (0) | |
103 | #endif | |
104 | ||
1da177e4 LT |
105 | struct bond_params { |
106 | int mode; | |
169a3e66 | 107 | int xmit_policy; |
1da177e4 | 108 | int miimon; |
ad246c99 | 109 | u8 num_peer_notif; |
1da177e4 | 110 | int arp_interval; |
f5b2b966 | 111 | int arp_validate; |
8599b52e | 112 | int arp_all_targets; |
1da177e4 | 113 | int use_carrier; |
dd957c57 | 114 | int fail_over_mac; |
1da177e4 LT |
115 | int updelay; |
116 | int downdelay; | |
117 | int lacp_fast; | |
655f8919 | 118 | unsigned int min_links; |
fd989c83 | 119 | int ad_select; |
1da177e4 | 120 | char primary[IFNAMSIZ]; |
a549952a | 121 | int primary_reselect; |
d3bb52b0 | 122 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 123 | int tx_queues; |
ebd8e497 | 124 | int all_slaves_active; |
c2952c31 | 125 | int resend_igmp; |
7eacd038 | 126 | int lp_interval; |
73958329 | 127 | int packets_per_slave; |
e9f0fb88 | 128 | int tlb_dynamic_lb; |
809fa972 | 129 | struct reciprocal_value reciprocal_packets_per_slave; |
6791e466 | 130 | u16 ad_actor_sys_prio; |
d22a5fc0 | 131 | u16 ad_user_port_key; |
f87fda00 ED |
132 | |
133 | /* 2 bytes of padding : see ether_addr_equal_64bits() */ | |
134 | u8 ad_actor_system[ETH_ALEN + 2]; | |
1da177e4 LT |
135 | }; |
136 | ||
12479f9a MW |
137 | struct bond_parm_tbl { |
138 | char *modename; | |
139 | int mode; | |
140 | }; | |
141 | ||
69e61133 MS |
142 | struct netdev_notify_work { |
143 | struct delayed_work work; | |
69e61133 | 144 | struct net_device *dev; |
92e584fe | 145 | struct netdev_bonding_info bonding_info; |
69e61133 MS |
146 | }; |
147 | ||
1da177e4 | 148 | struct slave { |
e944ef79 | 149 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 150 | struct bonding *bond; /* our master */ |
8bb5f96b | 151 | int delay; |
8e603460 VF |
152 | /* all three in jiffies */ |
153 | unsigned long last_link_up; | |
49f17de7 | 154 | unsigned long last_rx; |
8599b52e | 155 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 156 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 157 | s8 new_link; |
2d7011ca JP |
158 | u8 backup:1, /* indicates backup slave. Value corresponds with |
159 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
5e5b0665 | 160 | inactive:1, /* indicates inactive slave */ |
5d397061 JP |
161 | should_notify:1, /* indicates whether the state changed */ |
162 | should_notify_link:1; /* indicates whether the link changed */ | |
5d30530e | 163 | u8 duplex; |
3158bf7d | 164 | u32 original_mtu; |
1da177e4 | 165 | u32 link_failure_count; |
5d30530e | 166 | u32 speed; |
bb1d9123 | 167 | u16 queue_id; |
5d30530e | 168 | u8 perm_hwaddr[ETH_ALEN]; |
3fdddd85 | 169 | struct ad_slave_info *ad_info; |
1da177e4 | 170 | struct tlb_slave_info tlb_info; |
8a8efa22 AW |
171 | #ifdef CONFIG_NET_POLL_CONTROLLER |
172 | struct netpoll *np; | |
173 | #endif | |
07699f9a | 174 | struct kobject kobj; |
5f0c5f73 | 175 | struct rtnl_link_stats64 slave_stats; |
1da177e4 LT |
176 | }; |
177 | ||
ee637714 MB |
178 | struct bond_up_slave { |
179 | unsigned int count; | |
180 | struct rcu_head rcu; | |
181 | struct slave *arr[0]; | |
182 | }; | |
183 | ||
b2220cad JV |
184 | /* |
185 | * Link pseudo-state only used internally by monitors | |
186 | */ | |
187 | #define BOND_LINK_NOCHANGE -1 | |
188 | ||
1da177e4 LT |
189 | /* |
190 | * Here are the locking policies for the two bonding locks: | |
1c72cfdc | 191 | * Get rcu_read_lock when reading or RTNL when writing slave list. |
1da177e4 LT |
192 | */ |
193 | struct bonding { | |
e944ef79 | 194 | struct net_device *dev; /* first - useful for panic debug */ |
4740d638 | 195 | struct slave __rcu *curr_active_slave; |
85741718 | 196 | struct slave __rcu *current_arp_slave; |
059b47e8 | 197 | struct slave __rcu *primary_slave; |
ee637714 | 198 | struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ |
a549952a | 199 | bool force_primary; |
1da177e4 | 200 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
201 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
202 | struct slave *); | |
8c0bc550 NA |
203 | /* mode_lock is used for mode-specific locking needs, currently used by: |
204 | * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and | |
547942ca NA |
205 | * bond_3ad_state_machine_handler() concurrently and also |
206 | * the access to the state machine shared variables. | |
8c0bc550 NA |
207 | * TLB mode (5) - to sync the use and modifications of its hash table |
208 | * ALB mode (6) - to sync the use and modifications of its hash table | |
209 | */ | |
b7435628 | 210 | spinlock_t mode_lock; |
fe30937b | 211 | spinlock_t stats_lock; |
ad246c99 | 212 | u8 send_peer_notif; |
4f5474e7 | 213 | u8 igmp_retrans; |
1da177e4 LT |
214 | #ifdef CONFIG_PROC_FS |
215 | struct proc_dir_entry *proc_entry; | |
216 | char proc_file_name[IFNAMSIZ]; | |
217 | #endif /* CONFIG_PROC_FS */ | |
218 | struct list_head bond_list; | |
73958329 | 219 | u32 rr_tx_counter; |
1da177e4 LT |
220 | struct ad_bond_info ad_info; |
221 | struct alb_bond_info alb_info; | |
222 | struct bond_params params; | |
1b76b316 JV |
223 | struct workqueue_struct *wq; |
224 | struct delayed_work mii_work; | |
225 | struct delayed_work arp_work; | |
226 | struct delayed_work alb_work; | |
227 | struct delayed_work ad_work; | |
5a37e8ca | 228 | struct delayed_work mcast_work; |
ee637714 | 229 | struct delayed_work slave_arr_work; |
f073c7ca | 230 | #ifdef CONFIG_DEBUG_FS |
02582e9b | 231 | /* debugging support via debugfs */ |
f073c7ca TI |
232 | struct dentry *debug_dir; |
233 | #endif /* CONFIG_DEBUG_FS */ | |
5f0c5f73 | 234 | struct rtnl_link_stats64 bond_stats; |
1da177e4 LT |
235 | }; |
236 | ||
f1c1775a JP |
237 | #define bond_slave_get_rcu(dev) \ |
238 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
239 | ||
471cb5a3 JP |
240 | #define bond_slave_get_rtnl(dev) \ |
241 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
242 | ||
69e61133 | 243 | void bond_queue_slave_event(struct slave *slave); |
f7c7eb7f | 244 | void bond_lower_state_changed(struct slave *slave); |
69e61133 | 245 | |
fbd929f2 | 246 | struct bond_vlan_tag { |
247 | __be16 vlan_proto; | |
248 | unsigned short vlan_id; | |
249 | }; | |
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 | return slave->bond; |
1da177e4 LT |
265 | } |
266 | ||
d1e2e5cd VF |
267 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
268 | { | |
01844098 VF |
269 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
270 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; | |
d1e2e5cd VF |
271 | } |
272 | ||
58402054 HE |
273 | static inline bool bond_is_lb(const struct bonding *bond) |
274 | { | |
01844098 VF |
275 | return BOND_MODE(bond) == BOND_MODE_TLB || |
276 | BOND_MODE(bond) == BOND_MODE_ALB; | |
58402054 HE |
277 | } |
278 | ||
6b794c1c MB |
279 | static inline bool bond_is_nondyn_tlb(const struct bonding *bond) |
280 | { | |
281 | return (BOND_MODE(bond) == BOND_MODE_TLB) && | |
282 | (bond->params.tlb_dynamic_lb == 0); | |
283 | } | |
284 | ||
d7021325 MB |
285 | static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond) |
286 | { | |
287 | return (BOND_MODE(bond) == BOND_MODE_8023AD || | |
288 | BOND_MODE(bond) == BOND_MODE_XOR || | |
289 | bond_is_nondyn_tlb(bond)); | |
290 | } | |
291 | ||
267bed77 VF |
292 | static inline bool bond_mode_uses_arp(int mode) |
293 | { | |
294 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && | |
295 | mode != BOND_MODE_ALB; | |
296 | } | |
297 | ||
ec0865a9 VF |
298 | static inline bool bond_mode_uses_primary(int mode) |
299 | { | |
300 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || | |
301 | mode == BOND_MODE_ALB; | |
302 | } | |
303 | ||
304 | static inline bool bond_uses_primary(struct bonding *bond) | |
305 | { | |
01844098 | 306 | return bond_mode_uses_primary(BOND_MODE(bond)); |
ec0865a9 VF |
307 | } |
308 | ||
e9998695 MB |
309 | static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) |
310 | { | |
311 | struct slave *slave = rcu_dereference(bond->curr_active_slave); | |
312 | ||
313 | return bond_uses_primary(bond) && slave ? slave->dev : NULL; | |
314 | } | |
315 | ||
b6adc610 VF |
316 | static inline bool bond_slave_is_up(struct slave *slave) |
317 | { | |
318 | return netif_running(slave->dev) && netif_carrier_ok(slave->dev); | |
319 | } | |
320 | ||
e30bc066 JP |
321 | static inline void bond_set_active_slave(struct slave *slave) |
322 | { | |
1d3ee88a | 323 | if (slave->backup) { |
324 | slave->backup = 0; | |
69e61133 | 325 | bond_queue_slave_event(slave); |
f7c7eb7f | 326 | bond_lower_state_changed(slave); |
072256d1 | 327 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 328 | } |
e30bc066 JP |
329 | } |
330 | ||
331 | static inline void bond_set_backup_slave(struct slave *slave) | |
332 | { | |
1d3ee88a | 333 | if (!slave->backup) { |
334 | slave->backup = 1; | |
69e61133 | 335 | bond_queue_slave_event(slave); |
f7c7eb7f | 336 | bond_lower_state_changed(slave); |
072256d1 | 337 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 338 | } |
e30bc066 JP |
339 | } |
340 | ||
5e5b0665 | 341 | static inline void bond_set_slave_state(struct slave *slave, |
342 | int slave_state, bool notify) | |
343 | { | |
344 | if (slave->backup == slave_state) | |
345 | return; | |
346 | ||
347 | slave->backup = slave_state; | |
348 | if (notify) { | |
f7c7eb7f | 349 | bond_lower_state_changed(slave); |
072256d1 | 350 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
69e61133 | 351 | bond_queue_slave_event(slave); |
5e5b0665 | 352 | slave->should_notify = 0; |
353 | } else { | |
354 | if (slave->should_notify) | |
355 | slave->should_notify = 0; | |
356 | else | |
357 | slave->should_notify = 1; | |
358 | } | |
359 | } | |
360 | ||
6fde8f03 DT |
361 | static inline void bond_slave_state_change(struct bonding *bond) |
362 | { | |
363 | struct list_head *iter; | |
364 | struct slave *tmp; | |
365 | ||
366 | bond_for_each_slave(bond, tmp, iter) { | |
367 | if (tmp->link == BOND_LINK_UP) | |
368 | bond_set_active_slave(tmp); | |
369 | else if (tmp->link == BOND_LINK_DOWN) | |
370 | bond_set_backup_slave(tmp); | |
371 | } | |
372 | } | |
373 | ||
b0929915 | 374 | static inline void bond_slave_state_notify(struct bonding *bond) |
375 | { | |
376 | struct list_head *iter; | |
377 | struct slave *tmp; | |
378 | ||
379 | bond_for_each_slave(bond, tmp, iter) { | |
380 | if (tmp->should_notify) { | |
f7c7eb7f | 381 | bond_lower_state_changed(tmp); |
072256d1 | 382 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 383 | tmp->should_notify = 0; |
384 | } | |
385 | } | |
386 | } | |
387 | ||
e30bc066 JP |
388 | static inline int bond_slave_state(struct slave *slave) |
389 | { | |
390 | return slave->backup; | |
391 | } | |
392 | ||
393 | static inline bool bond_is_active_slave(struct slave *slave) | |
394 | { | |
395 | return !bond_slave_state(slave); | |
396 | } | |
397 | ||
891ab54d VF |
398 | static inline bool bond_slave_can_tx(struct slave *slave) |
399 | { | |
400 | return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && | |
401 | bond_is_active_slave(slave); | |
402 | } | |
403 | ||
a549952a JP |
404 | #define BOND_PRI_RESELECT_ALWAYS 0 |
405 | #define BOND_PRI_RESELECT_BETTER 1 | |
406 | #define BOND_PRI_RESELECT_FAILURE 2 | |
407 | ||
3915c1e8 JV |
408 | #define BOND_FOM_NONE 0 |
409 | #define BOND_FOM_ACTIVE 1 | |
410 | #define BOND_FOM_FOLLOW 2 | |
411 | ||
8599b52e VF |
412 | #define BOND_ARP_TARGETS_ANY 0 |
413 | #define BOND_ARP_TARGETS_ALL 1 | |
414 | ||
f5b2b966 JV |
415 | #define BOND_ARP_VALIDATE_NONE 0 |
416 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
417 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
418 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
419 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
420 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
421 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
422 | BOND_ARP_FILTER) | |
423 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
424 | BOND_ARP_FILTER) | |
f5b2b966 | 425 | |
5e5b0665 | 426 | #define BOND_SLAVE_NOTIFY_NOW true |
427 | #define BOND_SLAVE_NOTIFY_LATER false | |
428 | ||
079ca7da AB |
429 | static inline int slave_do_arp_validate(struct bonding *bond, |
430 | struct slave *slave) | |
f5b2b966 | 431 | { |
e30bc066 | 432 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
433 | } |
434 | ||
bedabf90 | 435 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
896149ff VF |
436 | { |
437 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
438 | } | |
439 | ||
2807a9fe VF |
440 | static inline int bond_is_ip_target_ok(__be32 addr) |
441 | { | |
442 | return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); | |
443 | } | |
444 | ||
8599b52e VF |
445 | /* Get the oldest arp which we've received on this slave for bond's |
446 | * arp_targets. | |
447 | */ | |
448 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
449 | struct slave *slave) | |
450 | { | |
451 | int i = 1; | |
452 | unsigned long ret = slave->target_last_arp_rx[0]; | |
453 | ||
454 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
455 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
456 | ret = slave->target_last_arp_rx[i]; | |
457 | ||
458 | return ret; | |
459 | } | |
460 | ||
079ca7da | 461 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 462 | struct slave *slave) |
f5b2b966 | 463 | { |
9f242738 VF |
464 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
465 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 466 | |
49f17de7 | 467 | return slave->last_rx; |
f5b2b966 JV |
468 | } |
469 | ||
8a8efa22 AW |
470 | #ifdef CONFIG_NET_POLL_CONTROLLER |
471 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
472 | struct sk_buff *skb) | |
473 | { | |
474 | struct netpoll *np = slave->np; | |
475 | ||
476 | if (np) | |
477 | netpoll_send_skb(np, skb); | |
478 | } | |
479 | #else | |
480 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
481 | struct sk_buff *skb) | |
482 | { | |
483 | } | |
484 | #endif | |
485 | ||
5e5b0665 | 486 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
487 | bool notify) | |
1da177e4 | 488 | { |
471cb5a3 | 489 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 490 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 491 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 492 | slave->inactive = 1; |
1da177e4 LT |
493 | } |
494 | ||
5e5b0665 | 495 | static inline void bond_set_slave_active_flags(struct slave *slave, |
496 | bool notify) | |
1da177e4 | 497 | { |
5e5b0665 | 498 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
499 | slave->inactive = 0; |
500 | } | |
501 | ||
502 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
503 | { | |
504 | return slave->inactive; | |
1da177e4 LT |
505 | } |
506 | ||
5d397061 JP |
507 | static inline void bond_set_slave_link_state(struct slave *slave, int state, |
508 | bool notify) | |
69a2338e | 509 | { |
5d397061 JP |
510 | if (slave->link == state) |
511 | return; | |
512 | ||
69a2338e | 513 | slave->link = state; |
5d397061 JP |
514 | if (notify) { |
515 | bond_queue_slave_event(slave); | |
f7c7eb7f | 516 | bond_lower_state_changed(slave); |
5d397061 JP |
517 | slave->should_notify_link = 0; |
518 | } else { | |
519 | if (slave->should_notify_link) | |
520 | slave->should_notify_link = 0; | |
521 | else | |
522 | slave->should_notify_link = 1; | |
523 | } | |
524 | } | |
525 | ||
526 | static inline void bond_slave_link_notify(struct bonding *bond) | |
527 | { | |
528 | struct list_head *iter; | |
529 | struct slave *tmp; | |
530 | ||
531 | bond_for_each_slave(bond, tmp, iter) { | |
532 | if (tmp->should_notify_link) { | |
533 | bond_queue_slave_event(tmp); | |
f7c7eb7f | 534 | bond_lower_state_changed(tmp); |
5d397061 JP |
535 | tmp->should_notify_link = 0; |
536 | } | |
537 | } | |
69a2338e MS |
538 | } |
539 | ||
eaddcd76 AG |
540 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
541 | { | |
542 | struct in_device *in_dev; | |
543 | __be32 addr = 0; | |
544 | ||
545 | rcu_read_lock(); | |
546 | in_dev = __in_dev_get_rcu(dev); | |
547 | ||
548 | if (in_dev) | |
b601fa19 ND |
549 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
550 | RT_SCOPE_HOST); | |
eaddcd76 AG |
551 | rcu_read_unlock(); |
552 | return addr; | |
553 | } | |
554 | ||
31924325 | 555 | struct bond_net { |
556 | struct net *net; /* Associated network namespace */ | |
557 | struct list_head dev_list; | |
558 | #ifdef CONFIG_PROC_FS | |
559 | struct proc_dir_entry *proc_dir; | |
560 | #endif | |
561 | struct class_attribute class_attr_bonding_masters; | |
562 | }; | |
4c22400a | 563 | |
5bb9e0b5 | 564 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 565 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 566 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
567 | int bond_create_sysfs(struct bond_net *net); |
568 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 569 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 570 | int bond_sysfs_slave_add(struct slave *slave); |
571 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
572 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
573 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 574 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
2477bc9a | 575 | int bond_set_carrier(struct bonding *bond); |
a77b5325 MW |
576 | void bond_select_active_slave(struct bonding *bond); |
577 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
578 | void bond_create_debugfs(void); |
579 | void bond_destroy_debugfs(void); | |
580 | void bond_debug_register(struct bonding *bond); | |
581 | void bond_debug_unregister(struct bonding *bond); | |
582 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 583 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
584 | void bond_setup(struct net_device *bond_dev); |
585 | unsigned int bond_get_num_tx_queues(void); | |
586 | int bond_netlink_init(void); | |
587 | void bond_netlink_fini(void); | |
752d48b5 | 588 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
07699f9a | 589 | const char *bond_slave_link_status(s8 link); |
3e403a77 VF |
590 | struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, |
591 | struct net_device *end_dev, | |
592 | int level); | |
ee637714 MB |
593 | int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave); |
594 | void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay); | |
1da177e4 | 595 | |
bd33acc3 AW |
596 | #ifdef CONFIG_PROC_FS |
597 | void bond_create_proc_entry(struct bonding *bond); | |
598 | void bond_remove_proc_entry(struct bonding *bond); | |
599 | void bond_create_proc_dir(struct bond_net *bn); | |
600 | void bond_destroy_proc_dir(struct bond_net *bn); | |
601 | #else | |
602 | static inline void bond_create_proc_entry(struct bonding *bond) | |
603 | { | |
604 | } | |
605 | ||
606 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
607 | { | |
608 | } | |
609 | ||
610 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
611 | { | |
612 | } | |
613 | ||
614 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
615 | { | |
616 | } | |
617 | #endif | |
618 | ||
567b871e | 619 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
620 | const u8 *mac) | |
621 | { | |
9caff1e7 | 622 | struct list_head *iter; |
567b871e | 623 | struct slave *tmp; |
624 | ||
9caff1e7 | 625 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 626 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
627 | return tmp; | |
628 | ||
629 | return NULL; | |
630 | } | |
bd33acc3 | 631 | |
28c71926 | 632 | /* Caller must hold rcu_read_lock() for read */ |
633 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
634 | const u8 *mac) | |
635 | { | |
636 | struct list_head *iter; | |
637 | struct slave *tmp; | |
638 | ||
639 | bond_for_each_slave_rcu(bond, tmp, iter) | |
640 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
641 | return tmp; | |
642 | ||
643 | return NULL; | |
644 | } | |
645 | ||
14af9963 VY |
646 | /* Caller must hold rcu_read_lock() for read */ |
647 | static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) | |
648 | { | |
649 | struct list_head *iter; | |
650 | struct slave *tmp; | |
651 | struct netdev_hw_addr *ha; | |
652 | ||
653 | bond_for_each_slave_rcu(bond, tmp, iter) | |
654 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
655 | return true; | |
656 | ||
657 | if (netdev_uc_empty(bond->dev)) | |
658 | return false; | |
659 | ||
660 | netdev_for_each_uc_addr(ha, bond->dev) | |
661 | if (ether_addr_equal_64bits(mac, ha->addr)) | |
662 | return true; | |
663 | ||
664 | return false; | |
665 | } | |
666 | ||
87a7b84b VF |
667 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
668 | * Returns -1 if not found, index if found | |
669 | */ | |
670 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
671 | { | |
672 | int i; | |
673 | ||
674 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
675 | if (targets[i] == ip) | |
676 | return i; | |
677 | else if (targets[i] == 0) | |
678 | break; | |
679 | ||
680 | return -1; | |
681 | } | |
682 | ||
b2259672 | 683 | /* exported from bond_main.c */ |
ec87fd3b | 684 | extern int bond_net_id; |
e97fd7c6 | 685 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
686 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
687 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 688 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 689 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 690 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
691 | extern struct bond_parm_tbl ad_select_tbl[]; |
692 | ||
0a2a78c4 JP |
693 | /* exported from bond_netlink.c */ |
694 | extern struct rtnl_link_ops bond_link_ops; | |
695 | ||
31aa860e ED |
696 | static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb) |
697 | { | |
698 | atomic_long_inc(&dev->tx_dropped); | |
699 | dev_kfree_skb_any(skb); | |
700 | } | |
701 | ||
1ef8019b | 702 | #endif /* _NET_BONDING_H */ |