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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 | ||
1da177e4 | 153 | struct slave { |
e944ef79 | 154 | struct net_device *dev; /* first - useful for panic debug */ |
35d48903 | 155 | struct bonding *bond; /* our master */ |
8bb5f96b | 156 | int delay; |
8e603460 VF |
157 | /* all three in jiffies */ |
158 | unsigned long last_link_up; | |
49f17de7 | 159 | unsigned long last_rx; |
8599b52e | 160 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
1da177e4 | 161 | s8 link; /* one of BOND_LINK_XXXX */ |
b2220cad | 162 | s8 new_link; |
2d7011ca JP |
163 | u8 backup:1, /* indicates backup slave. Value corresponds with |
164 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ | |
5e5b0665 | 165 | inactive:1, /* indicates inactive slave */ |
166 | should_notify:1; /* indicateds whether the state changed */ | |
5d30530e | 167 | u8 duplex; |
3158bf7d | 168 | u32 original_mtu; |
1da177e4 | 169 | u32 link_failure_count; |
5d30530e | 170 | u32 speed; |
bb1d9123 | 171 | u16 queue_id; |
5d30530e | 172 | u8 perm_hwaddr[ETH_ALEN]; |
3fdddd85 | 173 | struct ad_slave_info *ad_info; |
1da177e4 | 174 | struct tlb_slave_info tlb_info; |
8a8efa22 AW |
175 | #ifdef CONFIG_NET_POLL_CONTROLLER |
176 | struct netpoll *np; | |
177 | #endif | |
07699f9a | 178 | struct kobject kobj; |
5f0c5f73 | 179 | struct rtnl_link_stats64 slave_stats; |
1da177e4 LT |
180 | }; |
181 | ||
ee637714 MB |
182 | struct bond_up_slave { |
183 | unsigned int count; | |
184 | struct rcu_head rcu; | |
185 | struct slave *arr[0]; | |
186 | }; | |
187 | ||
b2220cad JV |
188 | /* |
189 | * Link pseudo-state only used internally by monitors | |
190 | */ | |
191 | #define BOND_LINK_NOCHANGE -1 | |
192 | ||
1da177e4 LT |
193 | /* |
194 | * Here are the locking policies for the two bonding locks: | |
1c72cfdc | 195 | * Get rcu_read_lock when reading or RTNL when writing slave list. |
1da177e4 LT |
196 | */ |
197 | struct bonding { | |
e944ef79 | 198 | struct net_device *dev; /* first - useful for panic debug */ |
4740d638 | 199 | struct slave __rcu *curr_active_slave; |
85741718 | 200 | struct slave __rcu *current_arp_slave; |
059b47e8 | 201 | struct slave __rcu *primary_slave; |
ee637714 | 202 | struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ |
a549952a | 203 | bool force_primary; |
1da177e4 | 204 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
de063b70 ED |
205 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
206 | struct slave *); | |
8c0bc550 NA |
207 | /* mode_lock is used for mode-specific locking needs, currently used by: |
208 | * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and | |
547942ca NA |
209 | * bond_3ad_state_machine_handler() concurrently and also |
210 | * the access to the state machine shared variables. | |
8c0bc550 NA |
211 | * TLB mode (5) - to sync the use and modifications of its hash table |
212 | * ALB mode (6) - to sync the use and modifications of its hash table | |
213 | */ | |
b7435628 | 214 | spinlock_t mode_lock; |
ad246c99 | 215 | u8 send_peer_notif; |
4f5474e7 | 216 | u8 igmp_retrans; |
1da177e4 LT |
217 | #ifdef CONFIG_PROC_FS |
218 | struct proc_dir_entry *proc_entry; | |
219 | char proc_file_name[IFNAMSIZ]; | |
220 | #endif /* CONFIG_PROC_FS */ | |
221 | struct list_head bond_list; | |
73958329 | 222 | u32 rr_tx_counter; |
1da177e4 LT |
223 | struct ad_bond_info ad_info; |
224 | struct alb_bond_info alb_info; | |
225 | struct bond_params params; | |
1b76b316 JV |
226 | struct workqueue_struct *wq; |
227 | struct delayed_work mii_work; | |
228 | struct delayed_work arp_work; | |
229 | struct delayed_work alb_work; | |
230 | struct delayed_work ad_work; | |
5a37e8ca | 231 | struct delayed_work mcast_work; |
ee637714 | 232 | struct delayed_work slave_arr_work; |
f073c7ca | 233 | #ifdef CONFIG_DEBUG_FS |
02582e9b | 234 | /* debugging support via debugfs */ |
f073c7ca TI |
235 | struct dentry *debug_dir; |
236 | #endif /* CONFIG_DEBUG_FS */ | |
5f0c5f73 | 237 | struct rtnl_link_stats64 bond_stats; |
1da177e4 LT |
238 | }; |
239 | ||
f1c1775a JP |
240 | #define bond_slave_get_rcu(dev) \ |
241 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) | |
242 | ||
471cb5a3 JP |
243 | #define bond_slave_get_rtnl(dev) \ |
244 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) | |
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 | ||
b6adc610 VF |
309 | static inline bool bond_slave_is_up(struct slave *slave) |
310 | { | |
311 | return netif_running(slave->dev) && netif_carrier_ok(slave->dev); | |
312 | } | |
313 | ||
e30bc066 JP |
314 | static inline void bond_set_active_slave(struct slave *slave) |
315 | { | |
1d3ee88a | 316 | if (slave->backup) { |
317 | slave->backup = 0; | |
072256d1 | 318 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 319 | } |
e30bc066 JP |
320 | } |
321 | ||
322 | static inline void bond_set_backup_slave(struct slave *slave) | |
323 | { | |
1d3ee88a | 324 | if (!slave->backup) { |
325 | slave->backup = 1; | |
072256d1 | 326 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
1d3ee88a | 327 | } |
e30bc066 JP |
328 | } |
329 | ||
5e5b0665 | 330 | static inline void bond_set_slave_state(struct slave *slave, |
331 | int slave_state, bool notify) | |
332 | { | |
333 | if (slave->backup == slave_state) | |
334 | return; | |
335 | ||
336 | slave->backup = slave_state; | |
337 | if (notify) { | |
072256d1 | 338 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
5e5b0665 | 339 | slave->should_notify = 0; |
340 | } else { | |
341 | if (slave->should_notify) | |
342 | slave->should_notify = 0; | |
343 | else | |
344 | slave->should_notify = 1; | |
345 | } | |
346 | } | |
347 | ||
6fde8f03 DT |
348 | static inline void bond_slave_state_change(struct bonding *bond) |
349 | { | |
350 | struct list_head *iter; | |
351 | struct slave *tmp; | |
352 | ||
353 | bond_for_each_slave(bond, tmp, iter) { | |
354 | if (tmp->link == BOND_LINK_UP) | |
355 | bond_set_active_slave(tmp); | |
356 | else if (tmp->link == BOND_LINK_DOWN) | |
357 | bond_set_backup_slave(tmp); | |
358 | } | |
359 | } | |
360 | ||
b0929915 | 361 | static inline void bond_slave_state_notify(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->should_notify) { | |
072256d1 | 368 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
b0929915 | 369 | tmp->should_notify = 0; |
370 | } | |
371 | } | |
372 | } | |
373 | ||
e30bc066 JP |
374 | static inline int bond_slave_state(struct slave *slave) |
375 | { | |
376 | return slave->backup; | |
377 | } | |
378 | ||
379 | static inline bool bond_is_active_slave(struct slave *slave) | |
380 | { | |
381 | return !bond_slave_state(slave); | |
382 | } | |
383 | ||
891ab54d VF |
384 | static inline bool bond_slave_can_tx(struct slave *slave) |
385 | { | |
386 | return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && | |
387 | bond_is_active_slave(slave); | |
388 | } | |
389 | ||
a549952a JP |
390 | #define BOND_PRI_RESELECT_ALWAYS 0 |
391 | #define BOND_PRI_RESELECT_BETTER 1 | |
392 | #define BOND_PRI_RESELECT_FAILURE 2 | |
393 | ||
3915c1e8 JV |
394 | #define BOND_FOM_NONE 0 |
395 | #define BOND_FOM_ACTIVE 1 | |
396 | #define BOND_FOM_FOLLOW 2 | |
397 | ||
8599b52e VF |
398 | #define BOND_ARP_TARGETS_ANY 0 |
399 | #define BOND_ARP_TARGETS_ALL 1 | |
400 | ||
f5b2b966 JV |
401 | #define BOND_ARP_VALIDATE_NONE 0 |
402 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) | |
403 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) | |
404 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ | |
405 | BOND_ARP_VALIDATE_BACKUP) | |
896149ff VF |
406 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
407 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ | |
408 | BOND_ARP_FILTER) | |
409 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ | |
410 | BOND_ARP_FILTER) | |
f5b2b966 | 411 | |
5e5b0665 | 412 | #define BOND_SLAVE_NOTIFY_NOW true |
413 | #define BOND_SLAVE_NOTIFY_LATER false | |
414 | ||
079ca7da AB |
415 | static inline int slave_do_arp_validate(struct bonding *bond, |
416 | struct slave *slave) | |
f5b2b966 | 417 | { |
e30bc066 | 418 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
f5b2b966 JV |
419 | } |
420 | ||
bedabf90 | 421 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
896149ff VF |
422 | { |
423 | return bond->params.arp_validate & BOND_ARP_FILTER; | |
424 | } | |
425 | ||
2807a9fe VF |
426 | static inline int bond_is_ip_target_ok(__be32 addr) |
427 | { | |
428 | return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); | |
429 | } | |
430 | ||
8599b52e VF |
431 | /* Get the oldest arp which we've received on this slave for bond's |
432 | * arp_targets. | |
433 | */ | |
434 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, | |
435 | struct slave *slave) | |
436 | { | |
437 | int i = 1; | |
438 | unsigned long ret = slave->target_last_arp_rx[0]; | |
439 | ||
440 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) | |
441 | if (time_before(slave->target_last_arp_rx[i], ret)) | |
442 | ret = slave->target_last_arp_rx[i]; | |
443 | ||
444 | return ret; | |
445 | } | |
446 | ||
079ca7da | 447 | static inline unsigned long slave_last_rx(struct bonding *bond, |
f8a8ccd5 | 448 | struct slave *slave) |
f5b2b966 | 449 | { |
9f242738 VF |
450 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
451 | return slave_oldest_target_arp_rx(bond, slave); | |
f5b2b966 | 452 | |
49f17de7 | 453 | return slave->last_rx; |
f5b2b966 JV |
454 | } |
455 | ||
8a8efa22 AW |
456 | #ifdef CONFIG_NET_POLL_CONTROLLER |
457 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
458 | struct sk_buff *skb) | |
459 | { | |
460 | struct netpoll *np = slave->np; | |
461 | ||
462 | if (np) | |
463 | netpoll_send_skb(np, skb); | |
464 | } | |
465 | #else | |
466 | static inline void bond_netpoll_send_skb(const struct slave *slave, | |
467 | struct sk_buff *skb) | |
468 | { | |
469 | } | |
470 | #endif | |
471 | ||
5e5b0665 | 472 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
473 | bool notify) | |
1da177e4 | 474 | { |
471cb5a3 | 475 | if (!bond_is_lb(slave->bond)) |
5e5b0665 | 476 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
471cb5a3 | 477 | if (!slave->bond->params.all_slaves_active) |
2d7011ca | 478 | slave->inactive = 1; |
1da177e4 LT |
479 | } |
480 | ||
5e5b0665 | 481 | static inline void bond_set_slave_active_flags(struct slave *slave, |
482 | bool notify) | |
1da177e4 | 483 | { |
5e5b0665 | 484 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
2d7011ca JP |
485 | slave->inactive = 0; |
486 | } | |
487 | ||
488 | static inline bool bond_is_slave_inactive(struct slave *slave) | |
489 | { | |
490 | return slave->inactive; | |
1da177e4 LT |
491 | } |
492 | ||
eaddcd76 AG |
493 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
494 | { | |
495 | struct in_device *in_dev; | |
496 | __be32 addr = 0; | |
497 | ||
498 | rcu_read_lock(); | |
499 | in_dev = __in_dev_get_rcu(dev); | |
500 | ||
501 | if (in_dev) | |
b601fa19 ND |
502 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
503 | RT_SCOPE_HOST); | |
eaddcd76 AG |
504 | rcu_read_unlock(); |
505 | return addr; | |
506 | } | |
507 | ||
31924325 | 508 | struct bond_net { |
509 | struct net *net; /* Associated network namespace */ | |
510 | struct list_head dev_list; | |
511 | #ifdef CONFIG_PROC_FS | |
512 | struct proc_dir_entry *proc_dir; | |
513 | #endif | |
514 | struct class_attribute class_attr_bonding_masters; | |
515 | }; | |
4c22400a | 516 | |
5bb9e0b5 | 517 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
d316dedd | 518 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
ec87fd3b | 519 | int bond_create(struct net *net, const char *name); |
4c22400a EB |
520 | int bond_create_sysfs(struct bond_net *net); |
521 | void bond_destroy_sysfs(struct bond_net *net); | |
6151b3d4 | 522 | void bond_prepare_sysfs_group(struct bonding *bond); |
07699f9a | 523 | int bond_sysfs_slave_add(struct slave *slave); |
524 | void bond_sysfs_slave_del(struct slave *slave); | |
a77b5325 MW |
525 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
526 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); | |
ee62e868 | 527 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
a77b5325 MW |
528 | void bond_select_active_slave(struct bonding *bond); |
529 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); | |
f073c7ca TI |
530 | void bond_create_debugfs(void); |
531 | void bond_destroy_debugfs(void); | |
532 | void bond_debug_register(struct bonding *bond); | |
533 | void bond_debug_unregister(struct bonding *bond); | |
534 | void bond_debug_reregister(struct bonding *bond); | |
d30ee670 | 535 | const char *bond_mode_name(int mode); |
0a2a78c4 JP |
536 | void bond_setup(struct net_device *bond_dev); |
537 | unsigned int bond_get_num_tx_queues(void); | |
538 | int bond_netlink_init(void); | |
539 | void bond_netlink_fini(void); | |
752d48b5 | 540 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
07699f9a | 541 | const char *bond_slave_link_status(s8 link); |
3e403a77 VF |
542 | struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, |
543 | struct net_device *end_dev, | |
544 | int level); | |
ee637714 MB |
545 | int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave); |
546 | void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay); | |
1da177e4 | 547 | |
bd33acc3 AW |
548 | #ifdef CONFIG_PROC_FS |
549 | void bond_create_proc_entry(struct bonding *bond); | |
550 | void bond_remove_proc_entry(struct bonding *bond); | |
551 | void bond_create_proc_dir(struct bond_net *bn); | |
552 | void bond_destroy_proc_dir(struct bond_net *bn); | |
553 | #else | |
554 | static inline void bond_create_proc_entry(struct bonding *bond) | |
555 | { | |
556 | } | |
557 | ||
558 | static inline void bond_remove_proc_entry(struct bonding *bond) | |
559 | { | |
560 | } | |
561 | ||
562 | static inline void bond_create_proc_dir(struct bond_net *bn) | |
563 | { | |
564 | } | |
565 | ||
566 | static inline void bond_destroy_proc_dir(struct bond_net *bn) | |
567 | { | |
568 | } | |
569 | #endif | |
570 | ||
567b871e | 571 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
572 | const u8 *mac) | |
573 | { | |
9caff1e7 | 574 | struct list_head *iter; |
567b871e | 575 | struct slave *tmp; |
576 | ||
9caff1e7 | 577 | bond_for_each_slave(bond, tmp, iter) |
567b871e | 578 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
579 | return tmp; | |
580 | ||
581 | return NULL; | |
582 | } | |
bd33acc3 | 583 | |
28c71926 | 584 | /* Caller must hold rcu_read_lock() for read */ |
585 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, | |
586 | const u8 *mac) | |
587 | { | |
588 | struct list_head *iter; | |
589 | struct slave *tmp; | |
590 | ||
591 | bond_for_each_slave_rcu(bond, tmp, iter) | |
592 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
593 | return tmp; | |
594 | ||
595 | return NULL; | |
596 | } | |
597 | ||
14af9963 VY |
598 | /* Caller must hold rcu_read_lock() for read */ |
599 | static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) | |
600 | { | |
601 | struct list_head *iter; | |
602 | struct slave *tmp; | |
603 | struct netdev_hw_addr *ha; | |
604 | ||
605 | bond_for_each_slave_rcu(bond, tmp, iter) | |
606 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) | |
607 | return true; | |
608 | ||
609 | if (netdev_uc_empty(bond->dev)) | |
610 | return false; | |
611 | ||
612 | netdev_for_each_uc_addr(ha, bond->dev) | |
613 | if (ether_addr_equal_64bits(mac, ha->addr)) | |
614 | return true; | |
615 | ||
616 | return false; | |
617 | } | |
618 | ||
87a7b84b VF |
619 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
620 | * Returns -1 if not found, index if found | |
621 | */ | |
622 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) | |
623 | { | |
624 | int i; | |
625 | ||
626 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
627 | if (targets[i] == ip) | |
628 | return i; | |
629 | else if (targets[i] == 0) | |
630 | break; | |
631 | ||
632 | return -1; | |
633 | } | |
634 | ||
b2259672 | 635 | /* exported from bond_main.c */ |
ec87fd3b | 636 | extern int bond_net_id; |
e97fd7c6 | 637 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
e97fd7c6 HE |
638 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
639 | extern const struct bond_parm_tbl arp_validate_tbl[]; | |
8599b52e | 640 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
e97fd7c6 | 641 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
a549952a | 642 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
b06715b7 HE |
643 | extern struct bond_parm_tbl ad_select_tbl[]; |
644 | ||
0a2a78c4 JP |
645 | /* exported from bond_netlink.c */ |
646 | extern struct rtnl_link_ops bond_link_ops; | |
647 | ||
31aa860e ED |
648 | static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb) |
649 | { | |
650 | atomic_long_inc(&dev->tx_dropped); | |
651 | dev_kfree_skb_any(skb); | |
652 | } | |
653 | ||
1ef8019b | 654 | #endif /* _NET_BONDING_H */ |