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 | ||
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 LT |
40 | /* |
41 | * Less bad way to call ioctl from within the kernel; this needs to be | |
42 | * done some other way to get the call out of interrupt context. | |
43 | * Needs "ioctl" variable to be supplied by calling context. | |
44 | */ | |
45 | #define IOCTL(dev, arg, cmd) ({ \ | |
46 | int res = 0; \ | |
47 | mm_segment_t fs = get_fs(); \ | |
48 | set_fs(get_ds()); \ | |
49 | res = ioctl(dev, arg, cmd); \ | |
50 | set_fs(fs); \ | |
51 | res; }) | |
52 | ||
01844098 VF |
53 | #define BOND_MODE(bond) ((bond)->params.mode) |
54 | ||
dec1e90e | 55 | /* slave list primitives */ |
5a52405a VF |
56 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
57 | ||
58 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 59 | |
dec1e90e | 60 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
61 | #define bond_first_slave(bond) \ | |
5a52405a VF |
62 | (bond_has_slaves(bond) ? \ |
63 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
64 | NULL) | |
dec1e90e | 65 | #define bond_last_slave(bond) \ |
5a52405a VF |
66 | (bond_has_slaves(bond) ? \ |
67 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
68 | NULL) | |
dec1e90e | 69 | |
e001bfad | 70 | /* Caller must have rcu_read_lock */ |
71 | #define bond_first_slave_rcu(bond) \ | |
72 | netdev_lower_get_first_private_rcu(bond->dev) | |
73 | ||
5a52405a VF |
74 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
75 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 76 | |
1da177e4 | 77 | /** |
dec1e90e | 78 | * bond_for_each_slave - iterate over all slaves |
79 | * @bond: the bond holding this list | |
80 | * @pos: current slave | |
9caff1e7 | 81 | * @iter: list_head * iterator |
1da177e4 | 82 | * |
87163ef9 | 83 | * Caller must hold RTNL |
1da177e4 | 84 | */ |
9caff1e7 VF |
85 | #define bond_for_each_slave(bond, pos, iter) \ |
86 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 87 | |
278b2083 | 88 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
89 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
90 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 91 | |
e843fa50 | 92 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 93 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
94 | |
95 | static inline void block_netpoll_tx(void) | |
96 | { | |
fb4fa76a | 97 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
98 | } |
99 | ||
100 | static inline void unblock_netpoll_tx(void) | |
101 | { | |
fb4fa76a | 102 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
103 | } |
104 | ||
105 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
106 | { | |
080e4130 | 107 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 108 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
109 | return 0; |
110 | } | |
111 | #else | |
112 | #define block_netpoll_tx() | |
113 | #define unblock_netpoll_tx() | |
114 | #define is_netpoll_tx_blocked(dev) (0) | |
115 | #endif | |
116 | ||
1da177e4 LT |
117 | struct bond_params { |
118 | int mode; | |
169a3e66 | 119 | int xmit_policy; |
1da177e4 | 120 | int miimon; |
ad246c99 | 121 | u8 num_peer_notif; |
1da177e4 | 122 | int arp_interval; |
f5b2b966 | 123 | int arp_validate; |
8599b52e | 124 | int arp_all_targets; |
1da177e4 | 125 | int use_carrier; |
dd957c57 | 126 | int fail_over_mac; |
1da177e4 LT |
127 | int updelay; |
128 | int downdelay; | |
129 | int lacp_fast; | |
655f8919 | 130 | unsigned int min_links; |
fd989c83 | 131 | int ad_select; |
1da177e4 | 132 | char primary[IFNAMSIZ]; |
a549952a | 133 | int primary_reselect; |
d3bb52b0 | 134 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 135 | int tx_queues; |
ebd8e497 | 136 | int all_slaves_active; |
c2952c31 | 137 | int resend_igmp; |
7eacd038 | 138 | int lp_interval; |
73958329 | 139 | int packets_per_slave; |
e9f0fb88 | 140 | int tlb_dynamic_lb; |
809fa972 | 141 | struct reciprocal_value reciprocal_packets_per_slave; |
6791e466 | 142 | u16 ad_actor_sys_prio; |
d22a5fc0 | 143 | u16 ad_user_port_key; |
f87fda00 ED |
144 | |
145 | /* 2 bytes of padding : see ether_addr_equal_64bits() */ | |
146 | u8 ad_actor_system[ETH_ALEN + 2]; | |
1da177e4 LT |
147 | }; |
148 | ||
12479f9a MW |
149 | struct bond_parm_tbl { |
150 | char *modename; | |
151 | int mode; | |
152 | }; | |
153 | ||
69e61133 MS |
154 | struct netdev_notify_work { |
155 | struct delayed_work work; | |
69e61133 | 156 | struct net_device *dev; |
92e584fe | 157 | struct netdev_bonding_info bonding_info; |
69e61133 MS |
158 | }; |
159 | ||
1da177e4 | 160 | struct slave { |
e944ef79 | 161 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 162 | struct bonding *bond; /* our master */ |
8bb5f96b | 163 | int delay; |
8e603460 VF |
164 | /* all three in jiffies */ |
165 | unsigned long last_link_up; | |
49f17de7 | 166 | unsigned long last_rx; |
8599b52e | 167 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 168 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 169 | s8 new_link; |
2d7011ca JP |
170 | u8 backup:1, /* indicates backup slave. Value corresponds with |
171 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
5e5b0665 | 172 | inactive:1, /* indicates inactive slave */ |
5d397061 JP |
173 | should_notify:1, /* indicates whether the state changed */ |
174 | should_notify_link:1; /* indicates whether the link changed */ | |
5d30530e | 175 | u8 duplex; |
3158bf7d | 176 | u32 original_mtu; |
1da177e4 | 177 | u32 link_failure_count; |
5d30530e | 178 | u32 speed; |
bb1d9123 | 179 | u16 queue_id; |
5d30530e | 180 | u8 perm_hwaddr[ETH_ALEN]; |
3fdddd85 | 181 | struct ad_slave_info *ad_info; |
1da177e4 | 182 | struct tlb_slave_info tlb_info; |
8a8efa22 AW |
183 | #ifdef CONFIG_NET_POLL_CONTROLLER |
184 | struct netpoll *np; | |
185 | #endif | |
07699f9a | 186 | struct kobject kobj; |
5f0c5f73 | 187 | struct rtnl_link_stats64 slave_stats; |
1da177e4 LT |
188 | }; |
189 | ||
ee637714 MB |
190 | struct bond_up_slave { |
191 | unsigned int count; | |
192 | struct rcu_head rcu; | |
193 | struct slave *arr[0]; | |
194 | }; | |
195 | ||
b2220cad JV |
196 | /* |
197 | * Link pseudo-state only used internally by monitors | |
198 | */ | |
199 | #define BOND_LINK_NOCHANGE -1 | |
200 | ||
1da177e4 LT |
201 | /* |
202 | * Here are the locking policies for the two bonding locks: | |
1c72cfdc | 203 | * Get rcu_read_lock when reading or RTNL when writing slave list. |
1da177e4 LT |
204 | */ |
205 | struct bonding { | |
e944ef79 | 206 | struct net_device *dev; /* first - useful for panic debug */ |
4740d638 | 207 | struct slave __rcu *curr_active_slave; |
85741718 | 208 | struct slave __rcu *current_arp_slave; |
059b47e8 | 209 | struct slave __rcu *primary_slave; |
ee637714 | 210 | struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ |
a549952a | 211 | bool force_primary; |
1da177e4 | 212 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
213 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
214 | struct slave *); | |
8c0bc550 NA |
215 | /* mode_lock is used for mode-specific locking needs, currently used by: |
216 | * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and | |
547942ca NA |
217 | * bond_3ad_state_machine_handler() concurrently and also |
218 | * the access to the state machine shared variables. | |
8c0bc550 NA |
219 | * TLB mode (5) - to sync the use and modifications of its hash table |
220 | * ALB mode (6) - to sync the use and modifications of its hash table | |
221 | */ | |
b7435628 | 222 | spinlock_t mode_lock; |
fe30937b | 223 | spinlock_t stats_lock; |
ad246c99 | 224 | u8 send_peer_notif; |
4f5474e7 | 225 | u8 igmp_retrans; |
1da177e4 LT |
226 | #ifdef CONFIG_PROC_FS |
227 | struct proc_dir_entry *proc_entry; | |
228 | char proc_file_name[IFNAMSIZ]; | |
229 | #endif /* CONFIG_PROC_FS */ | |
230 | struct list_head bond_list; | |
73958329 | 231 | u32 rr_tx_counter; |
1da177e4 LT |
232 | struct ad_bond_info ad_info; |
233 | struct alb_bond_info alb_info; | |
234 | struct bond_params params; | |
1b76b316 JV |
235 | struct workqueue_struct *wq; |
236 | struct delayed_work mii_work; | |
237 | struct delayed_work arp_work; | |
238 | struct delayed_work alb_work; | |
239 | struct delayed_work ad_work; | |
5a37e8ca | 240 | struct delayed_work mcast_work; |
ee637714 | 241 | struct delayed_work slave_arr_work; |
f073c7ca | 242 | #ifdef CONFIG_DEBUG_FS |
02582e9b | 243 | /* debugging support via debugfs */ |
f073c7ca TI |
244 | struct dentry *debug_dir; |
245 | #endif /* CONFIG_DEBUG_FS */ | |
5f0c5f73 | 246 | struct rtnl_link_stats64 bond_stats; |
1da177e4 LT |
247 | }; |
248 | ||
f1c1775a JP |
249 | #define bond_slave_get_rcu(dev) \ |
250 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
251 | ||
471cb5a3 JP |
252 | #define bond_slave_get_rtnl(dev) \ |
253 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
254 | ||
69e61133 | 255 | void bond_queue_slave_event(struct slave *slave); |
f7c7eb7f | 256 | void bond_lower_state_changed(struct slave *slave); |
69e61133 | 257 | |
fbd929f2 | 258 | struct bond_vlan_tag { |
259 | __be16 vlan_proto; | |
260 | unsigned short vlan_id; | |
261 | }; | |
262 | ||
1da177e4 LT |
263 | /** |
264 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
265 | * | |
266 | * Caller must hold bond lock for read | |
267 | */ | |
4ec952b8 | 268 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
269 | struct net_device *slave_dev) | |
1da177e4 | 270 | { |
46bb4807 | 271 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
1da177e4 LT |
272 | } |
273 | ||
cceb904f | 274 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 275 | { |
471cb5a3 | 276 | return slave->bond; |
1da177e4 LT |
277 | } |
278 | ||
d1e2e5cd VF |
279 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
280 | { | |
01844098 VF |
281 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
282 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; | |
d1e2e5cd VF |
283 | } |
284 | ||
58402054 HE |
285 | static inline bool bond_is_lb(const struct bonding *bond) |
286 | { | |
01844098 VF |
287 | return BOND_MODE(bond) == BOND_MODE_TLB || |
288 | BOND_MODE(bond) == BOND_MODE_ALB; | |
58402054 HE |
289 | } |
290 | ||
6b794c1c MB |
291 | static inline bool bond_is_nondyn_tlb(const struct bonding *bond) |
292 | { | |
293 | return (BOND_MODE(bond) == BOND_MODE_TLB) && | |
294 | (bond->params.tlb_dynamic_lb == 0); | |
295 | } | |
296 | ||
d7021325 MB |
297 | static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond) |
298 | { | |
299 | return (BOND_MODE(bond) == BOND_MODE_8023AD || | |
300 | BOND_MODE(bond) == BOND_MODE_XOR || | |
301 | bond_is_nondyn_tlb(bond)); | |
302 | } | |
303 | ||
267bed77 VF |
304 | static inline bool bond_mode_uses_arp(int mode) |
305 | { | |
306 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && | |
307 | mode != BOND_MODE_ALB; | |
308 | } | |
309 | ||
ec0865a9 VF |
310 | static inline bool bond_mode_uses_primary(int mode) |
311 | { | |
312 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || | |
313 | mode == BOND_MODE_ALB; | |
314 | } | |
315 | ||
316 | static inline bool bond_uses_primary(struct bonding *bond) | |
317 | { | |
01844098 | 318 | return bond_mode_uses_primary(BOND_MODE(bond)); |
ec0865a9 VF |
319 | } |
320 | ||
e9998695 MB |
321 | static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) |
322 | { | |
323 | struct slave *slave = rcu_dereference(bond->curr_active_slave); | |
324 | ||
325 | return bond_uses_primary(bond) && slave ? slave->dev : NULL; | |
326 | } | |
327 | ||
b6adc610 VF |
328 | static inline bool bond_slave_is_up(struct slave *slave) |
329 | { | |
330 | return netif_running(slave->dev) && netif_carrier_ok(slave->dev); | |
331 | } | |
332 | ||
e30bc066 JP |
333 | static inline void bond_set_active_slave(struct slave *slave) |
334 | { | |
1d3ee88a | 335 | if (slave->backup) { |
336 | slave->backup = 0; | |
69e61133 | 337 | bond_queue_slave_event(slave); |
f7c7eb7f | 338 | bond_lower_state_changed(slave); |
072256d1 | 339 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 340 | } |
e30bc066 JP |
341 | } |
342 | ||
343 | static inline void bond_set_backup_slave(struct slave *slave) | |
344 | { | |
1d3ee88a | 345 | if (!slave->backup) { |
346 | slave->backup = 1; | |
69e61133 | 347 | bond_queue_slave_event(slave); |
f7c7eb7f | 348 | bond_lower_state_changed(slave); |
072256d1 | 349 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 350 | } |
e30bc066 JP |
351 | } |
352 | ||
5e5b0665 | 353 | static inline void bond_set_slave_state(struct slave *slave, |
354 | int slave_state, bool notify) | |
355 | { | |
356 | if (slave->backup == slave_state) | |
357 | return; | |
358 | ||
359 | slave->backup = slave_state; | |
360 | if (notify) { | |
f7c7eb7f | 361 | bond_lower_state_changed(slave); |
072256d1 | 362 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
69e61133 | 363 | bond_queue_slave_event(slave); |
5e5b0665 | 364 | slave->should_notify = 0; |
365 | } else { | |
366 | if (slave->should_notify) | |
367 | slave->should_notify = 0; | |
368 | else | |
369 | slave->should_notify = 1; | |
370 | } | |
371 | } | |
372 | ||
6fde8f03 DT |
373 | static inline void bond_slave_state_change(struct bonding *bond) |
374 | { | |
375 | struct list_head *iter; | |
376 | struct slave *tmp; | |
377 | ||
378 | bond_for_each_slave(bond, tmp, iter) { | |
379 | if (tmp->link == BOND_LINK_UP) | |
380 | bond_set_active_slave(tmp); | |
381 | else if (tmp->link == BOND_LINK_DOWN) | |
382 | bond_set_backup_slave(tmp); | |
383 | } | |
384 | } | |
385 | ||
b0929915 | 386 | static inline void bond_slave_state_notify(struct bonding *bond) |
387 | { | |
388 | struct list_head *iter; | |
389 | struct slave *tmp; | |
390 | ||
391 | bond_for_each_slave(bond, tmp, iter) { | |
392 | if (tmp->should_notify) { | |
f7c7eb7f | 393 | bond_lower_state_changed(tmp); |
072256d1 | 394 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 395 | tmp->should_notify = 0; |
396 | } | |
397 | } | |
398 | } | |
399 | ||
e30bc066 JP |
400 | static inline int bond_slave_state(struct slave *slave) |
401 | { | |
402 | return slave->backup; | |
403 | } | |
404 | ||
405 | static inline bool bond_is_active_slave(struct slave *slave) | |
406 | { | |
407 | return !bond_slave_state(slave); | |
408 | } | |
409 | ||
891ab54d VF |
410 | static inline bool bond_slave_can_tx(struct slave *slave) |
411 | { | |
412 | return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && | |
413 | bond_is_active_slave(slave); | |
414 | } | |
415 | ||
a549952a JP |
416 | #define BOND_PRI_RESELECT_ALWAYS 0 |
417 | #define BOND_PRI_RESELECT_BETTER 1 | |
418 | #define BOND_PRI_RESELECT_FAILURE 2 | |
419 | ||
3915c1e8 JV |
420 | #define BOND_FOM_NONE 0 |
421 | #define BOND_FOM_ACTIVE 1 | |
422 | #define BOND_FOM_FOLLOW 2 | |
423 | ||
8599b52e VF |
424 | #define BOND_ARP_TARGETS_ANY 0 |
425 | #define BOND_ARP_TARGETS_ALL 1 | |
426 | ||
f5b2b966 JV |
427 | #define BOND_ARP_VALIDATE_NONE 0 |
428 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
429 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
430 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
431 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
432 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
433 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
434 | BOND_ARP_FILTER) | |
435 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
436 | BOND_ARP_FILTER) | |
f5b2b966 | 437 | |
5e5b0665 | 438 | #define BOND_SLAVE_NOTIFY_NOW true |
439 | #define BOND_SLAVE_NOTIFY_LATER false | |
440 | ||
079ca7da AB |
441 | static inline int slave_do_arp_validate(struct bonding *bond, |
442 | struct slave *slave) | |
f5b2b966 | 443 | { |
e30bc066 | 444 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
445 | } |
446 | ||
bedabf90 | 447 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
896149ff VF |
448 | { |
449 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
450 | } | |
451 | ||
2807a9fe VF |
452 | static inline int bond_is_ip_target_ok(__be32 addr) |
453 | { | |
454 | return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); | |
455 | } | |
456 | ||
8599b52e VF |
457 | /* Get the oldest arp which we've received on this slave for bond's |
458 | * arp_targets. | |
459 | */ | |
460 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
461 | struct slave *slave) | |
462 | { | |
463 | int i = 1; | |
464 | unsigned long ret = slave->target_last_arp_rx[0]; | |
465 | ||
466 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
467 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
468 | ret = slave->target_last_arp_rx[i]; | |
469 | ||
470 | return ret; | |
471 | } | |
472 | ||
079ca7da | 473 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 474 | struct slave *slave) |
f5b2b966 | 475 | { |
9f242738 VF |
476 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
477 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 478 | |
49f17de7 | 479 | return slave->last_rx; |
f5b2b966 JV |
480 | } |
481 | ||
8a8efa22 AW |
482 | #ifdef CONFIG_NET_POLL_CONTROLLER |
483 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
484 | struct sk_buff *skb) | |
485 | { | |
486 | struct netpoll *np = slave->np; | |
487 | ||
488 | if (np) | |
489 | netpoll_send_skb(np, skb); | |
490 | } | |
491 | #else | |
492 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
493 | struct sk_buff *skb) | |
494 | { | |
495 | } | |
496 | #endif | |
497 | ||
5e5b0665 | 498 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
499 | bool notify) | |
1da177e4 | 500 | { |
471cb5a3 | 501 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 502 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 503 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 504 | slave->inactive = 1; |
1da177e4 LT |
505 | } |
506 | ||
5e5b0665 | 507 | static inline void bond_set_slave_active_flags(struct slave *slave, |
508 | bool notify) | |
1da177e4 | 509 | { |
5e5b0665 | 510 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
511 | slave->inactive = 0; |
512 | } | |
513 | ||
514 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
515 | { | |
516 | return slave->inactive; | |
1da177e4 LT |
517 | } |
518 | ||
5d397061 JP |
519 | static inline void bond_set_slave_link_state(struct slave *slave, int state, |
520 | bool notify) | |
69a2338e | 521 | { |
5d397061 JP |
522 | if (slave->link == state) |
523 | return; | |
524 | ||
69a2338e | 525 | slave->link = state; |
5d397061 JP |
526 | if (notify) { |
527 | bond_queue_slave_event(slave); | |
f7c7eb7f | 528 | bond_lower_state_changed(slave); |
5d397061 JP |
529 | slave->should_notify_link = 0; |
530 | } else { | |
531 | if (slave->should_notify_link) | |
532 | slave->should_notify_link = 0; | |
533 | else | |
534 | slave->should_notify_link = 1; | |
535 | } | |
536 | } | |
537 | ||
538 | static inline void bond_slave_link_notify(struct bonding *bond) | |
539 | { | |
540 | struct list_head *iter; | |
541 | struct slave *tmp; | |
542 | ||
543 | bond_for_each_slave(bond, tmp, iter) { | |
544 | if (tmp->should_notify_link) { | |
545 | bond_queue_slave_event(tmp); | |
f7c7eb7f | 546 | bond_lower_state_changed(tmp); |
5d397061 JP |
547 | tmp->should_notify_link = 0; |
548 | } | |
549 | } | |
69a2338e MS |
550 | } |
551 | ||
eaddcd76 AG |
552 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
553 | { | |
554 | struct in_device *in_dev; | |
555 | __be32 addr = 0; | |
556 | ||
557 | rcu_read_lock(); | |
558 | in_dev = __in_dev_get_rcu(dev); | |
559 | ||
560 | if (in_dev) | |
b601fa19 ND |
561 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
562 | RT_SCOPE_HOST); | |
eaddcd76 AG |
563 | rcu_read_unlock(); |
564 | return addr; | |
565 | } | |
566 | ||
31924325 | 567 | struct bond_net { |
568 | struct net *net; /* Associated network namespace */ | |
569 | struct list_head dev_list; | |
570 | #ifdef CONFIG_PROC_FS | |
571 | struct proc_dir_entry *proc_dir; | |
572 | #endif | |
573 | struct class_attribute class_attr_bonding_masters; | |
574 | }; | |
4c22400a | 575 | |
5bb9e0b5 | 576 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 577 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 578 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
579 | int bond_create_sysfs(struct bond_net *net); |
580 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 581 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 582 | int bond_sysfs_slave_add(struct slave *slave); |
583 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
584 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
585 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 586 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
2477bc9a | 587 | int bond_set_carrier(struct bonding *bond); |
a77b5325 MW |
588 | void bond_select_active_slave(struct bonding *bond); |
589 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
590 | void bond_create_debugfs(void); |
591 | void bond_destroy_debugfs(void); | |
592 | void bond_debug_register(struct bonding *bond); | |
593 | void bond_debug_unregister(struct bonding *bond); | |
594 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 595 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
596 | void bond_setup(struct net_device *bond_dev); |
597 | unsigned int bond_get_num_tx_queues(void); | |
598 | int bond_netlink_init(void); | |
599 | void bond_netlink_fini(void); | |
752d48b5 | 600 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
07699f9a | 601 | const char *bond_slave_link_status(s8 link); |
3e403a77 VF |
602 | struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, |
603 | struct net_device *end_dev, | |
604 | int level); | |
ee637714 MB |
605 | int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave); |
606 | void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay); | |
1da177e4 | 607 | |
bd33acc3 AW |
608 | #ifdef CONFIG_PROC_FS |
609 | void bond_create_proc_entry(struct bonding *bond); | |
610 | void bond_remove_proc_entry(struct bonding *bond); | |
611 | void bond_create_proc_dir(struct bond_net *bn); | |
612 | void bond_destroy_proc_dir(struct bond_net *bn); | |
613 | #else | |
614 | static inline void bond_create_proc_entry(struct bonding *bond) | |
615 | { | |
616 | } | |
617 | ||
618 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
619 | { | |
620 | } | |
621 | ||
622 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
623 | { | |
624 | } | |
625 | ||
626 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
627 | { | |
628 | } | |
629 | #endif | |
630 | ||
567b871e | 631 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
632 | const u8 *mac) | |
633 | { | |
9caff1e7 | 634 | struct list_head *iter; |
567b871e | 635 | struct slave *tmp; |
636 | ||
9caff1e7 | 637 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 638 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
639 | return tmp; | |
640 | ||
641 | return NULL; | |
642 | } | |
bd33acc3 | 643 | |
28c71926 | 644 | /* Caller must hold rcu_read_lock() for read */ |
645 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
646 | const u8 *mac) | |
647 | { | |
648 | struct list_head *iter; | |
649 | struct slave *tmp; | |
650 | ||
651 | bond_for_each_slave_rcu(bond, tmp, iter) | |
652 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
653 | return tmp; | |
654 | ||
655 | return NULL; | |
656 | } | |
657 | ||
14af9963 VY |
658 | /* Caller must hold rcu_read_lock() for read */ |
659 | static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) | |
660 | { | |
661 | struct list_head *iter; | |
662 | struct slave *tmp; | |
663 | struct netdev_hw_addr *ha; | |
664 | ||
665 | bond_for_each_slave_rcu(bond, tmp, iter) | |
666 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
667 | return true; | |
668 | ||
669 | if (netdev_uc_empty(bond->dev)) | |
670 | return false; | |
671 | ||
672 | netdev_for_each_uc_addr(ha, bond->dev) | |
673 | if (ether_addr_equal_64bits(mac, ha->addr)) | |
674 | return true; | |
675 | ||
676 | return false; | |
677 | } | |
678 | ||
87a7b84b VF |
679 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
680 | * Returns -1 if not found, index if found | |
681 | */ | |
682 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
683 | { | |
684 | int i; | |
685 | ||
686 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
687 | if (targets[i] == ip) | |
688 | return i; | |
689 | else if (targets[i] == 0) | |
690 | break; | |
691 | ||
692 | return -1; | |
693 | } | |
694 | ||
b2259672 | 695 | /* exported from bond_main.c */ |
ec87fd3b | 696 | extern int bond_net_id; |
e97fd7c6 | 697 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
698 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
699 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 700 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 701 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 702 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
703 | extern struct bond_parm_tbl ad_select_tbl[]; |
704 | ||
0a2a78c4 JP |
705 | /* exported from bond_netlink.c */ |
706 | extern struct rtnl_link_ops bond_link_ops; | |
707 | ||
31aa860e ED |
708 | static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb) |
709 | { | |
710 | atomic_long_inc(&dev->tx_dropped); | |
711 | dev_kfree_skb_any(skb); | |
712 | } | |
713 | ||
1ef8019b | 714 | #endif /* _NET_BONDING_H */ |