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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 | |
ad246c99 BH |
33 | #define DRV_VERSION "3.7.1" |
34 | #define DRV_RELDATE "April 27, 2011" | |
1da177e4 LT |
35 | #define DRV_NAME "bonding" |
36 | #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" | |
37 | ||
bd33acc3 AW |
38 | #define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n" |
39 | ||
1da177e4 LT |
40 | #define BOND_MAX_ARP_TARGETS 16 |
41 | ||
fe9d04af | 42 | #define BOND_DEFAULT_MIIMON 100 |
43 | ||
1da177e4 LT |
44 | /* |
45 | * Less bad way to call ioctl from within the kernel; this needs to be | |
46 | * done some other way to get the call out of interrupt context. | |
47 | * Needs "ioctl" variable to be supplied by calling context. | |
48 | */ | |
49 | #define IOCTL(dev, arg, cmd) ({ \ | |
50 | int res = 0; \ | |
51 | mm_segment_t fs = get_fs(); \ | |
52 | set_fs(get_ds()); \ | |
53 | res = ioctl(dev, arg, cmd); \ | |
54 | set_fs(fs); \ | |
55 | res; }) | |
56 | ||
01844098 VF |
57 | #define BOND_MODE(bond) ((bond)->params.mode) |
58 | ||
dec1e90e | 59 | /* slave list primitives */ |
5a52405a VF |
60 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
61 | ||
62 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) | |
0965a1f3 | 63 | |
dec1e90e | 64 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
65 | #define bond_first_slave(bond) \ | |
5a52405a VF |
66 | (bond_has_slaves(bond) ? \ |
67 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ | |
68 | NULL) | |
dec1e90e | 69 | #define bond_last_slave(bond) \ |
5a52405a VF |
70 | (bond_has_slaves(bond) ? \ |
71 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ | |
72 | NULL) | |
dec1e90e | 73 | |
e001bfad | 74 | /* Caller must have rcu_read_lock */ |
75 | #define bond_first_slave_rcu(bond) \ | |
76 | netdev_lower_get_first_private_rcu(bond->dev) | |
77 | ||
5a52405a VF |
78 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
79 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) | |
dec1e90e | 80 | |
1da177e4 | 81 | /** |
dec1e90e | 82 | * bond_for_each_slave - iterate over all slaves |
83 | * @bond: the bond holding this list | |
84 | * @pos: current slave | |
9caff1e7 | 85 | * @iter: list_head * iterator |
1da177e4 | 86 | * |
87163ef9 | 87 | * Caller must hold RTNL |
1da177e4 | 88 | */ |
9caff1e7 VF |
89 | #define bond_for_each_slave(bond, pos, iter) \ |
90 | netdev_for_each_lower_private((bond)->dev, pos, iter) | |
1da177e4 | 91 | |
278b2083 | 92 | /* Caller must have rcu_read_lock */ |
9caff1e7 VF |
93 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
94 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) | |
278b2083 | 95 | |
e843fa50 | 96 | #ifdef CONFIG_NET_POLL_CONTROLLER |
fb4fa76a | 97 | extern atomic_t netpoll_block_tx; |
e843fa50 NH |
98 | |
99 | static inline void block_netpoll_tx(void) | |
100 | { | |
fb4fa76a | 101 | atomic_inc(&netpoll_block_tx); |
e843fa50 NH |
102 | } |
103 | ||
104 | static inline void unblock_netpoll_tx(void) | |
105 | { | |
fb4fa76a | 106 | atomic_dec(&netpoll_block_tx); |
e843fa50 NH |
107 | } |
108 | ||
109 | static inline int is_netpoll_tx_blocked(struct net_device *dev) | |
110 | { | |
080e4130 | 111 | if (unlikely(netpoll_tx_running(dev))) |
fb4fa76a | 112 | return atomic_read(&netpoll_block_tx); |
e843fa50 NH |
113 | return 0; |
114 | } | |
115 | #else | |
116 | #define block_netpoll_tx() | |
117 | #define unblock_netpoll_tx() | |
118 | #define is_netpoll_tx_blocked(dev) (0) | |
119 | #endif | |
120 | ||
1da177e4 LT |
121 | struct bond_params { |
122 | int mode; | |
169a3e66 | 123 | int xmit_policy; |
1da177e4 | 124 | int miimon; |
ad246c99 | 125 | u8 num_peer_notif; |
1da177e4 | 126 | int arp_interval; |
f5b2b966 | 127 | int arp_validate; |
8599b52e | 128 | int arp_all_targets; |
1da177e4 | 129 | int use_carrier; |
dd957c57 | 130 | int fail_over_mac; |
1da177e4 LT |
131 | int updelay; |
132 | int downdelay; | |
133 | int lacp_fast; | |
655f8919 | 134 | unsigned int min_links; |
fd989c83 | 135 | int ad_select; |
1da177e4 | 136 | char primary[IFNAMSIZ]; |
a549952a | 137 | int primary_reselect; |
d3bb52b0 | 138 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
bb1d9123 | 139 | int tx_queues; |
ebd8e497 | 140 | int all_slaves_active; |
c2952c31 | 141 | int resend_igmp; |
7eacd038 | 142 | int lp_interval; |
73958329 | 143 | int packets_per_slave; |
e9f0fb88 | 144 | int tlb_dynamic_lb; |
809fa972 | 145 | struct reciprocal_value reciprocal_packets_per_slave; |
1da177e4 LT |
146 | }; |
147 | ||
12479f9a MW |
148 | struct bond_parm_tbl { |
149 | char *modename; | |
150 | int mode; | |
151 | }; | |
152 | ||
69e61133 MS |
153 | struct netdev_notify_work { |
154 | struct delayed_work work; | |
69e61133 | 155 | struct net_device *dev; |
92e584fe | 156 | struct netdev_bonding_info bonding_info; |
69e61133 MS |
157 | }; |
158 | ||
1da177e4 | 159 | struct slave { |
e944ef79 | 160 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 161 | struct bonding *bond; /* our master */ |
8bb5f96b | 162 | int delay; |
8e603460 VF |
163 | /* all three in jiffies */ |
164 | unsigned long last_link_up; | |
49f17de7 | 165 | unsigned long last_rx; |
8599b52e | 166 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 167 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 168 | s8 new_link; |
2d7011ca JP |
169 | u8 backup:1, /* indicates backup slave. Value corresponds with |
170 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
5e5b0665 | 171 | inactive:1, /* indicates inactive slave */ |
172 | should_notify:1; /* indicateds whether the state changed */ | |
5d30530e | 173 | u8 duplex; |
3158bf7d | 174 | u32 original_mtu; |
1da177e4 | 175 | u32 link_failure_count; |
5d30530e | 176 | u32 speed; |
bb1d9123 | 177 | u16 queue_id; |
5d30530e | 178 | u8 perm_hwaddr[ETH_ALEN]; |
3fdddd85 | 179 | struct ad_slave_info *ad_info; |
1da177e4 | 180 | struct tlb_slave_info tlb_info; |
8a8efa22 AW |
181 | #ifdef CONFIG_NET_POLL_CONTROLLER |
182 | struct netpoll *np; | |
183 | #endif | |
07699f9a | 184 | struct kobject kobj; |
5f0c5f73 | 185 | struct rtnl_link_stats64 slave_stats; |
1da177e4 LT |
186 | }; |
187 | ||
ee637714 MB |
188 | struct bond_up_slave { |
189 | unsigned int count; | |
190 | struct rcu_head rcu; | |
191 | struct slave *arr[0]; | |
192 | }; | |
193 | ||
b2220cad JV |
194 | /* |
195 | * Link pseudo-state only used internally by monitors | |
196 | */ | |
197 | #define BOND_LINK_NOCHANGE -1 | |
198 | ||
1da177e4 LT |
199 | /* |
200 | * Here are the locking policies for the two bonding locks: | |
1c72cfdc | 201 | * Get rcu_read_lock when reading or RTNL when writing slave list. |
1da177e4 LT |
202 | */ |
203 | struct bonding { | |
e944ef79 | 204 | struct net_device *dev; /* first - useful for panic debug */ |
4740d638 | 205 | struct slave __rcu *curr_active_slave; |
85741718 | 206 | struct slave __rcu *current_arp_slave; |
059b47e8 | 207 | struct slave __rcu *primary_slave; |
ee637714 | 208 | struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ |
a549952a | 209 | bool force_primary; |
1da177e4 | 210 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
211 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
212 | struct slave *); | |
8c0bc550 NA |
213 | /* mode_lock is used for mode-specific locking needs, currently used by: |
214 | * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and | |
547942ca NA |
215 | * bond_3ad_state_machine_handler() concurrently and also |
216 | * the access to the state machine shared variables. | |
8c0bc550 NA |
217 | * TLB mode (5) - to sync the use and modifications of its hash table |
218 | * ALB mode (6) - to sync the use and modifications of its hash table | |
219 | */ | |
b7435628 | 220 | spinlock_t mode_lock; |
ad246c99 | 221 | u8 send_peer_notif; |
4f5474e7 | 222 | u8 igmp_retrans; |
1da177e4 LT |
223 | #ifdef CONFIG_PROC_FS |
224 | struct proc_dir_entry *proc_entry; | |
225 | char proc_file_name[IFNAMSIZ]; | |
226 | #endif /* CONFIG_PROC_FS */ | |
227 | struct list_head bond_list; | |
73958329 | 228 | u32 rr_tx_counter; |
1da177e4 LT |
229 | struct ad_bond_info ad_info; |
230 | struct alb_bond_info alb_info; | |
231 | struct bond_params params; | |
1b76b316 JV |
232 | struct workqueue_struct *wq; |
233 | struct delayed_work mii_work; | |
234 | struct delayed_work arp_work; | |
235 | struct delayed_work alb_work; | |
236 | struct delayed_work ad_work; | |
5a37e8ca | 237 | struct delayed_work mcast_work; |
ee637714 | 238 | struct delayed_work slave_arr_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 */ | |
5f0c5f73 | 243 | struct rtnl_link_stats64 bond_stats; |
1da177e4 LT |
244 | }; |
245 | ||
f1c1775a JP |
246 | #define bond_slave_get_rcu(dev) \ |
247 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
248 | ||
471cb5a3 JP |
249 | #define bond_slave_get_rtnl(dev) \ |
250 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
251 | ||
69e61133 MS |
252 | void bond_queue_slave_event(struct slave *slave); |
253 | ||
fbd929f2 | 254 | struct bond_vlan_tag { |
255 | __be16 vlan_proto; | |
256 | unsigned short vlan_id; | |
257 | }; | |
258 | ||
1da177e4 LT |
259 | /** |
260 | * Returns NULL if the net_device does not belong to any of the bond's slaves | |
261 | * | |
262 | * Caller must hold bond lock for read | |
263 | */ | |
4ec952b8 | 264 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
265 | struct net_device *slave_dev) | |
1da177e4 | 266 | { |
46bb4807 | 267 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
1da177e4 LT |
268 | } |
269 | ||
cceb904f | 270 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
1da177e4 | 271 | { |
471cb5a3 | 272 | return slave->bond; |
1da177e4 LT |
273 | } |
274 | ||
d1e2e5cd VF |
275 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
276 | { | |
01844098 VF |
277 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
278 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; | |
d1e2e5cd VF |
279 | } |
280 | ||
58402054 HE |
281 | static inline bool bond_is_lb(const struct bonding *bond) |
282 | { | |
01844098 VF |
283 | return BOND_MODE(bond) == BOND_MODE_TLB || |
284 | BOND_MODE(bond) == BOND_MODE_ALB; | |
58402054 HE |
285 | } |
286 | ||
6b794c1c MB |
287 | static inline bool bond_is_nondyn_tlb(const struct bonding *bond) |
288 | { | |
289 | return (BOND_MODE(bond) == BOND_MODE_TLB) && | |
290 | (bond->params.tlb_dynamic_lb == 0); | |
291 | } | |
292 | ||
d7021325 MB |
293 | static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond) |
294 | { | |
295 | return (BOND_MODE(bond) == BOND_MODE_8023AD || | |
296 | BOND_MODE(bond) == BOND_MODE_XOR || | |
297 | bond_is_nondyn_tlb(bond)); | |
298 | } | |
299 | ||
267bed77 VF |
300 | static inline bool bond_mode_uses_arp(int mode) |
301 | { | |
302 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && | |
303 | mode != BOND_MODE_ALB; | |
304 | } | |
305 | ||
ec0865a9 VF |
306 | static inline bool bond_mode_uses_primary(int mode) |
307 | { | |
308 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || | |
309 | mode == BOND_MODE_ALB; | |
310 | } | |
311 | ||
312 | static inline bool bond_uses_primary(struct bonding *bond) | |
313 | { | |
01844098 | 314 | return bond_mode_uses_primary(BOND_MODE(bond)); |
ec0865a9 VF |
315 | } |
316 | ||
b6adc610 VF |
317 | static inline bool bond_slave_is_up(struct slave *slave) |
318 | { | |
319 | return netif_running(slave->dev) && netif_carrier_ok(slave->dev); | |
320 | } | |
321 | ||
e30bc066 JP |
322 | static inline void bond_set_active_slave(struct slave *slave) |
323 | { | |
1d3ee88a | 324 | if (slave->backup) { |
325 | slave->backup = 0; | |
69e61133 | 326 | bond_queue_slave_event(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); |
072256d1 | 336 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 337 | } |
e30bc066 JP |
338 | } |
339 | ||
5e5b0665 | 340 | static inline void bond_set_slave_state(struct slave *slave, |
341 | int slave_state, bool notify) | |
342 | { | |
343 | if (slave->backup == slave_state) | |
344 | return; | |
345 | ||
346 | slave->backup = slave_state; | |
347 | if (notify) { | |
072256d1 | 348 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
69e61133 | 349 | bond_queue_slave_event(slave); |
5e5b0665 | 350 | slave->should_notify = 0; |
351 | } else { | |
352 | if (slave->should_notify) | |
353 | slave->should_notify = 0; | |
354 | else | |
355 | slave->should_notify = 1; | |
356 | } | |
357 | } | |
358 | ||
6fde8f03 DT |
359 | static inline void bond_slave_state_change(struct bonding *bond) |
360 | { | |
361 | struct list_head *iter; | |
362 | struct slave *tmp; | |
363 | ||
364 | bond_for_each_slave(bond, tmp, iter) { | |
365 | if (tmp->link == BOND_LINK_UP) | |
366 | bond_set_active_slave(tmp); | |
367 | else if (tmp->link == BOND_LINK_DOWN) | |
368 | bond_set_backup_slave(tmp); | |
369 | } | |
370 | } | |
371 | ||
b0929915 | 372 | static inline void bond_slave_state_notify(struct bonding *bond) |
373 | { | |
374 | struct list_head *iter; | |
375 | struct slave *tmp; | |
376 | ||
377 | bond_for_each_slave(bond, tmp, iter) { | |
378 | if (tmp->should_notify) { | |
072256d1 | 379 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 380 | tmp->should_notify = 0; |
381 | } | |
382 | } | |
383 | } | |
384 | ||
e30bc066 JP |
385 | static inline int bond_slave_state(struct slave *slave) |
386 | { | |
387 | return slave->backup; | |
388 | } | |
389 | ||
390 | static inline bool bond_is_active_slave(struct slave *slave) | |
391 | { | |
392 | return !bond_slave_state(slave); | |
393 | } | |
394 | ||
891ab54d VF |
395 | static inline bool bond_slave_can_tx(struct slave *slave) |
396 | { | |
397 | return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && | |
398 | bond_is_active_slave(slave); | |
399 | } | |
400 | ||
a549952a JP |
401 | #define BOND_PRI_RESELECT_ALWAYS 0 |
402 | #define BOND_PRI_RESELECT_BETTER 1 | |
403 | #define BOND_PRI_RESELECT_FAILURE 2 | |
404 | ||
3915c1e8 JV |
405 | #define BOND_FOM_NONE 0 |
406 | #define BOND_FOM_ACTIVE 1 | |
407 | #define BOND_FOM_FOLLOW 2 | |
408 | ||
8599b52e VF |
409 | #define BOND_ARP_TARGETS_ANY 0 |
410 | #define BOND_ARP_TARGETS_ALL 1 | |
411 | ||
f5b2b966 JV |
412 | #define BOND_ARP_VALIDATE_NONE 0 |
413 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
414 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
415 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
416 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
417 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
418 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
419 | BOND_ARP_FILTER) | |
420 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
421 | BOND_ARP_FILTER) | |
f5b2b966 | 422 | |
5e5b0665 | 423 | #define BOND_SLAVE_NOTIFY_NOW true |
424 | #define BOND_SLAVE_NOTIFY_LATER false | |
425 | ||
079ca7da AB |
426 | static inline int slave_do_arp_validate(struct bonding *bond, |
427 | struct slave *slave) | |
f5b2b966 | 428 | { |
e30bc066 | 429 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
430 | } |
431 | ||
bedabf90 | 432 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
896149ff VF |
433 | { |
434 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
435 | } | |
436 | ||
2807a9fe VF |
437 | static inline int bond_is_ip_target_ok(__be32 addr) |
438 | { | |
439 | return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); | |
440 | } | |
441 | ||
8599b52e VF |
442 | /* Get the oldest arp which we've received on this slave for bond's |
443 | * arp_targets. | |
444 | */ | |
445 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
446 | struct slave *slave) | |
447 | { | |
448 | int i = 1; | |
449 | unsigned long ret = slave->target_last_arp_rx[0]; | |
450 | ||
451 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
452 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
453 | ret = slave->target_last_arp_rx[i]; | |
454 | ||
455 | return ret; | |
456 | } | |
457 | ||
079ca7da | 458 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 459 | struct slave *slave) |
f5b2b966 | 460 | { |
9f242738 VF |
461 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
462 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 463 | |
49f17de7 | 464 | return slave->last_rx; |
f5b2b966 JV |
465 | } |
466 | ||
8a8efa22 AW |
467 | #ifdef CONFIG_NET_POLL_CONTROLLER |
468 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
469 | struct sk_buff *skb) | |
470 | { | |
471 | struct netpoll *np = slave->np; | |
472 | ||
473 | if (np) | |
474 | netpoll_send_skb(np, skb); | |
475 | } | |
476 | #else | |
477 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
478 | struct sk_buff *skb) | |
479 | { | |
480 | } | |
481 | #endif | |
482 | ||
5e5b0665 | 483 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
484 | bool notify) | |
1da177e4 | 485 | { |
471cb5a3 | 486 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 487 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 488 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 489 | slave->inactive = 1; |
1da177e4 LT |
490 | } |
491 | ||
5e5b0665 | 492 | static inline void bond_set_slave_active_flags(struct slave *slave, |
493 | bool notify) | |
1da177e4 | 494 | { |
5e5b0665 | 495 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
496 | slave->inactive = 0; |
497 | } | |
498 | ||
499 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
500 | { | |
501 | return slave->inactive; | |
1da177e4 LT |
502 | } |
503 | ||
69a2338e MS |
504 | static inline void bond_set_slave_link_state(struct slave *slave, int state) |
505 | { | |
506 | slave->link = state; | |
69e61133 | 507 | bond_queue_slave_event(slave); |
69a2338e MS |
508 | } |
509 | ||
eaddcd76 AG |
510 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
511 | { | |
512 | struct in_device *in_dev; | |
513 | __be32 addr = 0; | |
514 | ||
515 | rcu_read_lock(); | |
516 | in_dev = __in_dev_get_rcu(dev); | |
517 | ||
518 | if (in_dev) | |
b601fa19 ND |
519 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
520 | RT_SCOPE_HOST); | |
eaddcd76 AG |
521 | rcu_read_unlock(); |
522 | return addr; | |
523 | } | |
524 | ||
31924325 | 525 | struct bond_net { |
526 | struct net *net; /* Associated network namespace */ | |
527 | struct list_head dev_list; | |
528 | #ifdef CONFIG_PROC_FS | |
529 | struct proc_dir_entry *proc_dir; | |
530 | #endif | |
531 | struct class_attribute class_attr_bonding_masters; | |
532 | }; | |
4c22400a | 533 | |
5bb9e0b5 | 534 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 535 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 536 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
537 | int bond_create_sysfs(struct bond_net *net); |
538 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 539 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 540 | int bond_sysfs_slave_add(struct slave *slave); |
541 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
542 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
543 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 544 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
2477bc9a | 545 | int bond_set_carrier(struct bonding *bond); |
a77b5325 MW |
546 | void bond_select_active_slave(struct bonding *bond); |
547 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
548 | void bond_create_debugfs(void); |
549 | void bond_destroy_debugfs(void); | |
550 | void bond_debug_register(struct bonding *bond); | |
551 | void bond_debug_unregister(struct bonding *bond); | |
552 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 553 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
554 | void bond_setup(struct net_device *bond_dev); |
555 | unsigned int bond_get_num_tx_queues(void); | |
556 | int bond_netlink_init(void); | |
557 | void bond_netlink_fini(void); | |
752d48b5 | 558 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
07699f9a | 559 | const char *bond_slave_link_status(s8 link); |
3e403a77 VF |
560 | struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, |
561 | struct net_device *end_dev, | |
562 | int level); | |
ee637714 MB |
563 | int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave); |
564 | void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay); | |
1da177e4 | 565 | |
bd33acc3 AW |
566 | #ifdef CONFIG_PROC_FS |
567 | void bond_create_proc_entry(struct bonding *bond); | |
568 | void bond_remove_proc_entry(struct bonding *bond); | |
569 | void bond_create_proc_dir(struct bond_net *bn); | |
570 | void bond_destroy_proc_dir(struct bond_net *bn); | |
571 | #else | |
572 | static inline void bond_create_proc_entry(struct bonding *bond) | |
573 | { | |
574 | } | |
575 | ||
576 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
577 | { | |
578 | } | |
579 | ||
580 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
581 | { | |
582 | } | |
583 | ||
584 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
585 | { | |
586 | } | |
587 | #endif | |
588 | ||
567b871e | 589 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
590 | const u8 *mac) | |
591 | { | |
9caff1e7 | 592 | struct list_head *iter; |
567b871e | 593 | struct slave *tmp; |
594 | ||
9caff1e7 | 595 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 596 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
597 | return tmp; | |
598 | ||
599 | return NULL; | |
600 | } | |
bd33acc3 | 601 | |
28c71926 | 602 | /* Caller must hold rcu_read_lock() for read */ |
603 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
604 | const u8 *mac) | |
605 | { | |
606 | struct list_head *iter; | |
607 | struct slave *tmp; | |
608 | ||
609 | bond_for_each_slave_rcu(bond, tmp, iter) | |
610 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
611 | return tmp; | |
612 | ||
613 | return NULL; | |
614 | } | |
615 | ||
14af9963 VY |
616 | /* Caller must hold rcu_read_lock() for read */ |
617 | static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) | |
618 | { | |
619 | struct list_head *iter; | |
620 | struct slave *tmp; | |
621 | struct netdev_hw_addr *ha; | |
622 | ||
623 | bond_for_each_slave_rcu(bond, tmp, iter) | |
624 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
625 | return true; | |
626 | ||
627 | if (netdev_uc_empty(bond->dev)) | |
628 | return false; | |
629 | ||
630 | netdev_for_each_uc_addr(ha, bond->dev) | |
631 | if (ether_addr_equal_64bits(mac, ha->addr)) | |
632 | return true; | |
633 | ||
634 | return false; | |
635 | } | |
636 | ||
87a7b84b VF |
637 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
638 | * Returns -1 if not found, index if found | |
639 | */ | |
640 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
641 | { | |
642 | int i; | |
643 | ||
644 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
645 | if (targets[i] == ip) | |
646 | return i; | |
647 | else if (targets[i] == 0) | |
648 | break; | |
649 | ||
650 | return -1; | |
651 | } | |
652 | ||
b2259672 | 653 | /* exported from bond_main.c */ |
ec87fd3b | 654 | extern int bond_net_id; |
e97fd7c6 | 655 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
656 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
657 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 658 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 659 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 660 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
661 | extern struct bond_parm_tbl ad_select_tbl[]; |
662 | ||
0a2a78c4 JP |
663 | /* exported from bond_netlink.c */ |
664 | extern struct rtnl_link_ops bond_link_ops; | |
665 | ||
31aa860e ED |
666 | static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb) |
667 | { | |
668 | atomic_long_inc(&dev->tx_dropped); | |
669 | dev_kfree_skb_any(skb); | |
670 | } | |
671 | ||
1ef8019b | 672 | #endif /* _NET_BONDING_H */ |