Commit | Line | Data |
---|---|---|
72be35fe JP |
1 | /* |
2 | * drivers/net/bond/bond_options.c - bonding options | |
3 | * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us> | |
eecdaa6e | 4 | * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com> |
72be35fe JP |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
13 | ||
14 | #include <linux/errno.h> | |
15 | #include <linux/if.h> | |
d9e32b21 JP |
16 | #include <linux/netdevice.h> |
17 | #include <linux/rwlock.h> | |
18 | #include <linux/rcupdate.h> | |
72be35fe JP |
19 | #include "bonding.h" |
20 | ||
72be35fe JP |
21 | int bond_option_mode_set(struct bonding *bond, int mode) |
22 | { | |
3243c47b | 23 | if (bond_parm_tbl_lookup(mode, bond_mode_tbl) < 0) { |
24 | pr_err("%s: Ignoring invalid mode value %d.\n", | |
25 | bond->dev->name, mode); | |
72be35fe JP |
26 | return -EINVAL; |
27 | } | |
28 | ||
29 | if (bond->dev->flags & IFF_UP) { | |
30 | pr_err("%s: unable to update mode because interface is up.\n", | |
31 | bond->dev->name); | |
32 | return -EPERM; | |
33 | } | |
34 | ||
35 | if (bond_has_slaves(bond)) { | |
36 | pr_err("%s: unable to update mode because bond has slaves.\n", | |
37 | bond->dev->name); | |
38 | return -EPERM; | |
39 | } | |
40 | ||
fe9d04af | 41 | if (BOND_NO_USES_ARP(mode) && bond->params.arp_interval) { |
42 | pr_info("%s: %s mode is incompatible with arp monitoring, start mii monitoring\n", | |
43 | bond->dev->name, bond_mode_tbl[mode].modename); | |
44 | /* disable arp monitoring */ | |
45 | bond->params.arp_interval = 0; | |
46 | /* set miimon to default value */ | |
47 | bond->params.miimon = BOND_DEFAULT_MIIMON; | |
48 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
49 | bond->dev->name, bond->params.miimon); | |
72be35fe JP |
50 | } |
51 | ||
52 | /* don't cache arp_validate between modes */ | |
53 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
54 | bond->params.mode = mode; | |
55 | return 0; | |
56 | } | |
d9e32b21 | 57 | |
752d48b5 JP |
58 | static struct net_device *__bond_option_active_slave_get(struct bonding *bond, |
59 | struct slave *slave) | |
60 | { | |
61 | return USES_PRIMARY(bond->params.mode) && slave ? slave->dev : NULL; | |
62 | } | |
63 | ||
64 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) | |
65 | { | |
66 | struct slave *slave = rcu_dereference(bond->curr_active_slave); | |
67 | ||
68 | return __bond_option_active_slave_get(bond, slave); | |
69 | } | |
70 | ||
71 | struct net_device *bond_option_active_slave_get(struct bonding *bond) | |
72 | { | |
73 | return __bond_option_active_slave_get(bond, bond->curr_active_slave); | |
74 | } | |
75 | ||
d9e32b21 JP |
76 | int bond_option_active_slave_set(struct bonding *bond, |
77 | struct net_device *slave_dev) | |
78 | { | |
79 | int ret = 0; | |
80 | ||
81 | if (slave_dev) { | |
82 | if (!netif_is_bond_slave(slave_dev)) { | |
83 | pr_err("Device %s is not bonding slave.\n", | |
84 | slave_dev->name); | |
85 | return -EINVAL; | |
86 | } | |
87 | ||
88 | if (bond->dev != netdev_master_upper_dev_get(slave_dev)) { | |
89 | pr_err("%s: Device %s is not our slave.\n", | |
90 | bond->dev->name, slave_dev->name); | |
91 | return -EINVAL; | |
92 | } | |
93 | } | |
94 | ||
95 | if (!USES_PRIMARY(bond->params.mode)) { | |
96 | pr_err("%s: Unable to change active slave; %s is in mode %d\n", | |
97 | bond->dev->name, bond->dev->name, bond->params.mode); | |
98 | return -EINVAL; | |
99 | } | |
100 | ||
101 | block_netpoll_tx(); | |
d9e32b21 JP |
102 | write_lock_bh(&bond->curr_slave_lock); |
103 | ||
104 | /* check to see if we are clearing active */ | |
105 | if (!slave_dev) { | |
106 | pr_info("%s: Clearing current active slave.\n", | |
107 | bond->dev->name); | |
108 | rcu_assign_pointer(bond->curr_active_slave, NULL); | |
109 | bond_select_active_slave(bond); | |
110 | } else { | |
111 | struct slave *old_active = bond->curr_active_slave; | |
112 | struct slave *new_active = bond_slave_get_rtnl(slave_dev); | |
113 | ||
114 | BUG_ON(!new_active); | |
115 | ||
116 | if (new_active == old_active) { | |
117 | /* do nothing */ | |
118 | pr_info("%s: %s is already the current active slave.\n", | |
119 | bond->dev->name, new_active->dev->name); | |
120 | } else { | |
121 | if (old_active && (new_active->link == BOND_LINK_UP) && | |
122 | IS_UP(new_active->dev)) { | |
123 | pr_info("%s: Setting %s as active slave.\n", | |
124 | bond->dev->name, new_active->dev->name); | |
125 | bond_change_active_slave(bond, new_active); | |
126 | } else { | |
127 | pr_err("%s: Could not set %s as active slave; either %s is down or the link is down.\n", | |
128 | bond->dev->name, new_active->dev->name, | |
129 | new_active->dev->name); | |
130 | ret = -EINVAL; | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
135 | write_unlock_bh(&bond->curr_slave_lock); | |
d9e32b21 JP |
136 | unblock_netpoll_tx(); |
137 | return ret; | |
138 | } | |
eecdaa6e | 139 | |
140 | int bond_option_miimon_set(struct bonding *bond, int miimon) | |
141 | { | |
142 | if (miimon < 0) { | |
143 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", | |
144 | bond->dev->name, miimon, 0, INT_MAX); | |
145 | return -EINVAL; | |
146 | } | |
147 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
148 | bond->dev->name, miimon); | |
149 | bond->params.miimon = miimon; | |
150 | if (bond->params.updelay) | |
151 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
152 | bond->dev->name, | |
153 | bond->params.updelay * bond->params.miimon); | |
154 | if (bond->params.downdelay) | |
155 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
156 | bond->dev->name, | |
157 | bond->params.downdelay * bond->params.miimon); | |
158 | if (miimon && bond->params.arp_interval) { | |
159 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
160 | bond->dev->name); | |
161 | bond->params.arp_interval = 0; | |
162 | if (bond->params.arp_validate) | |
163 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
164 | } | |
165 | if (bond->dev->flags & IFF_UP) { | |
166 | /* If the interface is up, we may need to fire off | |
167 | * the MII timer. If the interface is down, the | |
168 | * timer will get fired off when the open function | |
169 | * is called. | |
170 | */ | |
171 | if (!miimon) { | |
172 | cancel_delayed_work_sync(&bond->mii_work); | |
173 | } else { | |
174 | cancel_delayed_work_sync(&bond->arp_work); | |
175 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
176 | } | |
177 | } | |
178 | return 0; | |
179 | } | |
25852e29 | 180 | |
181 | int bond_option_updelay_set(struct bonding *bond, int updelay) | |
182 | { | |
183 | if (!(bond->params.miimon)) { | |
184 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", | |
185 | bond->dev->name); | |
186 | return -EPERM; | |
187 | } | |
188 | ||
189 | if (updelay < 0) { | |
190 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", | |
191 | bond->dev->name, updelay, 0, INT_MAX); | |
192 | return -EINVAL; | |
193 | } else { | |
194 | if ((updelay % bond->params.miimon) != 0) { | |
195 | pr_warn("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", | |
196 | bond->dev->name, updelay, | |
197 | bond->params.miimon, | |
198 | (updelay / bond->params.miimon) * | |
199 | bond->params.miimon); | |
200 | } | |
201 | bond->params.updelay = updelay / bond->params.miimon; | |
202 | pr_info("%s: Setting up delay to %d.\n", | |
203 | bond->dev->name, | |
204 | bond->params.updelay * bond->params.miimon); | |
205 | } | |
206 | ||
207 | return 0; | |
208 | } | |
c7461f9b | 209 | |
210 | int bond_option_downdelay_set(struct bonding *bond, int downdelay) | |
211 | { | |
212 | if (!(bond->params.miimon)) { | |
213 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", | |
214 | bond->dev->name); | |
215 | return -EPERM; | |
216 | } | |
217 | ||
218 | if (downdelay < 0) { | |
219 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", | |
220 | bond->dev->name, downdelay, 0, INT_MAX); | |
221 | return -EINVAL; | |
222 | } else { | |
223 | if ((downdelay % bond->params.miimon) != 0) { | |
224 | pr_warn("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", | |
225 | bond->dev->name, downdelay, | |
226 | bond->params.miimon, | |
227 | (downdelay / bond->params.miimon) * | |
228 | bond->params.miimon); | |
229 | } | |
230 | bond->params.downdelay = downdelay / bond->params.miimon; | |
231 | pr_info("%s: Setting down delay to %d.\n", | |
232 | bond->dev->name, | |
233 | bond->params.downdelay * bond->params.miimon); | |
234 | } | |
235 | ||
236 | return 0; | |
237 | } | |
9f53e14e | 238 | |
239 | int bond_option_use_carrier_set(struct bonding *bond, int use_carrier) | |
240 | { | |
241 | if ((use_carrier == 0) || (use_carrier == 1)) { | |
242 | bond->params.use_carrier = use_carrier; | |
243 | pr_info("%s: Setting use_carrier to %d.\n", | |
244 | bond->dev->name, use_carrier); | |
245 | } else { | |
246 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", | |
247 | bond->dev->name, use_carrier); | |
248 | } | |
249 | ||
250 | return 0; | |
251 | } | |
06151dbc | 252 | |
253 | int bond_option_arp_interval_set(struct bonding *bond, int arp_interval) | |
254 | { | |
255 | if (arp_interval < 0) { | |
256 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", | |
257 | bond->dev->name, arp_interval, INT_MAX); | |
258 | return -EINVAL; | |
259 | } | |
260 | if (BOND_NO_USES_ARP(bond->params.mode)) { | |
261 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n", | |
262 | bond->dev->name, bond->dev->name); | |
263 | return -EINVAL; | |
264 | } | |
265 | pr_info("%s: Setting ARP monitoring interval to %d.\n", | |
266 | bond->dev->name, arp_interval); | |
267 | bond->params.arp_interval = arp_interval; | |
268 | if (arp_interval) { | |
269 | if (bond->params.miimon) { | |
270 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
271 | bond->dev->name, bond->dev->name); | |
272 | bond->params.miimon = 0; | |
273 | } | |
274 | if (!bond->params.arp_targets[0]) | |
275 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
276 | bond->dev->name); | |
277 | } | |
278 | if (bond->dev->flags & IFF_UP) { | |
279 | /* If the interface is up, we may need to fire off | |
280 | * the ARP timer. If the interface is down, the | |
281 | * timer will get fired off when the open function | |
282 | * is called. | |
283 | */ | |
284 | if (!arp_interval) { | |
285 | if (bond->params.arp_validate) | |
286 | bond->recv_probe = NULL; | |
287 | cancel_delayed_work_sync(&bond->arp_work); | |
288 | } else { | |
289 | /* arp_validate can be set only in active-backup mode */ | |
290 | if (bond->params.arp_validate) | |
291 | bond->recv_probe = bond_arp_rcv; | |
292 | cancel_delayed_work_sync(&bond->mii_work); | |
293 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
294 | } | |
295 | } | |
296 | ||
297 | return 0; | |
298 | } | |
7f28fa10 | 299 | |
300 | static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot, | |
301 | __be32 target, | |
302 | unsigned long last_rx) | |
303 | { | |
304 | __be32 *targets = bond->params.arp_targets; | |
305 | struct list_head *iter; | |
306 | struct slave *slave; | |
307 | ||
308 | if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) { | |
309 | bond_for_each_slave(bond, slave, iter) | |
310 | slave->target_last_arp_rx[slot] = last_rx; | |
311 | targets[slot] = target; | |
312 | } | |
313 | } | |
314 | ||
315 | static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
316 | { | |
317 | __be32 *targets = bond->params.arp_targets; | |
318 | int ind; | |
319 | ||
320 | if (IS_IP_TARGET_UNUSABLE_ADDRESS(target)) { | |
321 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", | |
322 | bond->dev->name, &target); | |
323 | return -EINVAL; | |
324 | } | |
325 | ||
326 | if (bond_get_targets_ip(targets, target) != -1) { /* dup */ | |
327 | pr_err("%s: ARP target %pI4 is already present\n", | |
328 | bond->dev->name, &target); | |
329 | return -EINVAL; | |
330 | } | |
331 | ||
332 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ | |
333 | if (ind == -1) { | |
334 | pr_err("%s: ARP target table is full!\n", | |
335 | bond->dev->name); | |
336 | return -EINVAL; | |
337 | } | |
338 | ||
339 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, &target); | |
340 | ||
341 | _bond_options_arp_ip_target_set(bond, ind, target, jiffies); | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
347 | { | |
348 | int ret; | |
349 | ||
350 | /* not to race with bond_arp_rcv */ | |
351 | write_lock_bh(&bond->lock); | |
352 | ret = _bond_option_arp_ip_target_add(bond, target); | |
353 | write_unlock_bh(&bond->lock); | |
354 | ||
355 | return ret; | |
356 | } | |
357 | ||
358 | int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target) | |
359 | { | |
360 | __be32 *targets = bond->params.arp_targets; | |
361 | struct list_head *iter; | |
362 | struct slave *slave; | |
363 | unsigned long *targets_rx; | |
364 | int ind, i; | |
365 | ||
366 | if (IS_IP_TARGET_UNUSABLE_ADDRESS(target)) { | |
367 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", | |
368 | bond->dev->name, &target); | |
369 | return -EINVAL; | |
370 | } | |
371 | ||
372 | ind = bond_get_targets_ip(targets, target); | |
373 | if (ind == -1) { | |
374 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
375 | bond->dev->name, &target); | |
376 | return -EINVAL; | |
377 | } | |
378 | ||
379 | if (ind == 0 && !targets[1] && bond->params.arp_interval) | |
380 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
381 | bond->dev->name); | |
382 | ||
383 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, | |
384 | &target); | |
385 | ||
386 | /* not to race with bond_arp_rcv */ | |
387 | write_lock_bh(&bond->lock); | |
388 | ||
389 | bond_for_each_slave(bond, slave, iter) { | |
390 | targets_rx = slave->target_last_arp_rx; | |
391 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
392 | targets_rx[i] = targets_rx[i+1]; | |
393 | targets_rx[i] = 0; | |
394 | } | |
395 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
396 | targets[i] = targets[i+1]; | |
397 | targets[i] = 0; | |
398 | ||
399 | write_unlock_bh(&bond->lock); | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
404 | int bond_option_arp_ip_targets_set(struct bonding *bond, __be32 *targets, | |
405 | int count) | |
406 | { | |
407 | int i, ret = 0; | |
408 | ||
409 | /* not to race with bond_arp_rcv */ | |
410 | write_lock_bh(&bond->lock); | |
411 | ||
412 | /* clear table */ | |
413 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) | |
414 | _bond_options_arp_ip_target_set(bond, i, 0, 0); | |
415 | ||
416 | if (count == 0 && bond->params.arp_interval) | |
417 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
418 | bond->dev->name); | |
419 | ||
420 | for (i = 0; i < count; i++) { | |
421 | ret = _bond_option_arp_ip_target_add(bond, targets[i]); | |
422 | if (ret) | |
423 | break; | |
424 | } | |
425 | ||
426 | write_unlock_bh(&bond->lock); | |
427 | return ret; | |
428 | } | |
29c49482 | 429 | |
430 | int bond_option_arp_validate_set(struct bonding *bond, int arp_validate) | |
431 | { | |
3243c47b | 432 | if (bond_parm_tbl_lookup(arp_validate, arp_validate_tbl) < 0) { |
433 | pr_err("%s: Ignoring invalid arp_validate value %d.\n", | |
434 | bond->dev->name, arp_validate); | |
435 | return -EINVAL; | |
436 | } | |
437 | ||
29c49482 | 438 | if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) { |
439 | pr_err("%s: arp_validate only supported in active-backup mode.\n", | |
440 | bond->dev->name); | |
441 | return -EINVAL; | |
442 | } | |
3243c47b | 443 | |
29c49482 | 444 | pr_info("%s: setting arp_validate to %s (%d).\n", |
445 | bond->dev->name, arp_validate_tbl[arp_validate].modename, | |
446 | arp_validate); | |
447 | ||
448 | if (bond->dev->flags & IFF_UP) { | |
449 | if (!arp_validate) | |
450 | bond->recv_probe = NULL; | |
451 | else if (bond->params.arp_interval) | |
452 | bond->recv_probe = bond_arp_rcv; | |
453 | } | |
454 | bond->params.arp_validate = arp_validate; | |
455 | ||
456 | return 0; | |
457 | } | |
d5c84254 | 458 | |
459 | int bond_option_arp_all_targets_set(struct bonding *bond, int arp_all_targets) | |
460 | { | |
3243c47b | 461 | if (bond_parm_tbl_lookup(arp_all_targets, arp_all_targets_tbl) < 0) { |
462 | pr_err("%s: Ignoring invalid arp_all_targets value %d.\n", | |
463 | bond->dev->name, arp_all_targets); | |
464 | return -EINVAL; | |
465 | } | |
466 | ||
d5c84254 | 467 | pr_info("%s: setting arp_all_targets to %s (%d).\n", |
468 | bond->dev->name, arp_all_targets_tbl[arp_all_targets].modename, | |
469 | arp_all_targets); | |
470 | ||
471 | bond->params.arp_all_targets = arp_all_targets; | |
472 | ||
473 | return 0; | |
474 | } | |
0a98a0d1 | 475 | |
476 | int bond_option_primary_set(struct bonding *bond, const char *primary) | |
477 | { | |
478 | struct list_head *iter; | |
479 | struct slave *slave; | |
480 | int err = 0; | |
481 | ||
482 | block_netpoll_tx(); | |
483 | read_lock(&bond->lock); | |
484 | write_lock_bh(&bond->curr_slave_lock); | |
485 | ||
486 | if (!USES_PRIMARY(bond->params.mode)) { | |
487 | pr_err("%s: Unable to set primary slave; %s is in mode %d\n", | |
488 | bond->dev->name, bond->dev->name, bond->params.mode); | |
489 | err = -EINVAL; | |
490 | goto out; | |
491 | } | |
492 | ||
493 | /* check to see if we are clearing primary */ | |
494 | if (!strlen(primary)) { | |
495 | pr_info("%s: Setting primary slave to None.\n", | |
496 | bond->dev->name); | |
497 | bond->primary_slave = NULL; | |
498 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); | |
499 | bond_select_active_slave(bond); | |
500 | goto out; | |
501 | } | |
502 | ||
503 | bond_for_each_slave(bond, slave, iter) { | |
504 | if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) { | |
505 | pr_info("%s: Setting %s as primary slave.\n", | |
506 | bond->dev->name, slave->dev->name); | |
507 | bond->primary_slave = slave; | |
508 | strcpy(bond->params.primary, slave->dev->name); | |
509 | bond_select_active_slave(bond); | |
510 | goto out; | |
511 | } | |
512 | } | |
513 | ||
514 | strncpy(bond->params.primary, primary, IFNAMSIZ); | |
515 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
516 | ||
517 | pr_info("%s: Recording %s as primary, but it has not been enslaved to %s yet.\n", | |
518 | bond->dev->name, primary, bond->dev->name); | |
519 | ||
520 | out: | |
521 | write_unlock_bh(&bond->curr_slave_lock); | |
522 | read_unlock(&bond->lock); | |
523 | unblock_netpoll_tx(); | |
524 | ||
525 | return err; | |
526 | } | |
8a41ae44 | 527 | |
528 | int bond_option_primary_reselect_set(struct bonding *bond, int primary_reselect) | |
529 | { | |
3243c47b | 530 | if (bond_parm_tbl_lookup(primary_reselect, pri_reselect_tbl) < 0) { |
531 | pr_err("%s: Ignoring invalid primary_reselect value %d.\n", | |
532 | bond->dev->name, primary_reselect); | |
533 | return -EINVAL; | |
534 | } | |
535 | ||
8a41ae44 | 536 | bond->params.primary_reselect = primary_reselect; |
537 | pr_info("%s: setting primary_reselect to %s (%d).\n", | |
538 | bond->dev->name, pri_reselect_tbl[primary_reselect].modename, | |
539 | primary_reselect); | |
540 | ||
541 | block_netpoll_tx(); | |
542 | write_lock_bh(&bond->curr_slave_lock); | |
543 | bond_select_active_slave(bond); | |
544 | write_unlock_bh(&bond->curr_slave_lock); | |
545 | unblock_netpoll_tx(); | |
546 | ||
547 | return 0; | |
548 | } | |
89901972 | 549 | |
550 | int bond_option_fail_over_mac_set(struct bonding *bond, int fail_over_mac) | |
551 | { | |
3243c47b | 552 | if (bond_parm_tbl_lookup(fail_over_mac, fail_over_mac_tbl) < 0) { |
553 | pr_err("%s: Ignoring invalid fail_over_mac value %d.\n", | |
554 | bond->dev->name, fail_over_mac); | |
555 | return -EINVAL; | |
556 | } | |
557 | ||
89901972 | 558 | if (bond_has_slaves(bond)) { |
559 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", | |
560 | bond->dev->name); | |
561 | return -EPERM; | |
562 | } | |
563 | ||
564 | bond->params.fail_over_mac = fail_over_mac; | |
565 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", | |
566 | bond->dev->name, fail_over_mac_tbl[fail_over_mac].modename, | |
567 | fail_over_mac); | |
568 | ||
569 | return 0; | |
570 | } | |
f70161c6 | 571 | |
572 | int bond_option_xmit_hash_policy_set(struct bonding *bond, int xmit_hash_policy) | |
573 | { | |
3243c47b | 574 | if (bond_parm_tbl_lookup(xmit_hash_policy, xmit_hashtype_tbl) < 0) { |
575 | pr_err("%s: Ignoring invalid xmit_hash_policy value %d.\n", | |
576 | bond->dev->name, xmit_hash_policy); | |
577 | return -EINVAL; | |
578 | } | |
579 | ||
f70161c6 | 580 | bond->params.xmit_policy = xmit_hash_policy; |
581 | pr_info("%s: setting xmit hash policy to %s (%d).\n", | |
582 | bond->dev->name, | |
583 | xmit_hashtype_tbl[xmit_hash_policy].modename, xmit_hash_policy); | |
584 | ||
585 | return 0; | |
586 | } | |
d8838de7 | 587 | |
588 | int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp) | |
589 | { | |
590 | if (resend_igmp < 0 || resend_igmp > 255) { | |
591 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", | |
592 | bond->dev->name, resend_igmp); | |
593 | return -EINVAL; | |
594 | } | |
595 | ||
596 | bond->params.resend_igmp = resend_igmp; | |
597 | pr_info("%s: Setting resend_igmp to %d.\n", | |
598 | bond->dev->name, resend_igmp); | |
599 | ||
600 | return 0; | |
601 | } | |
2c9839c1 | 602 | |
603 | int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif) | |
604 | { | |
605 | bond->params.num_peer_notif = num_peer_notif; | |
606 | return 0; | |
607 | } | |
1cc0b1e3 | 608 | |
609 | int bond_option_all_slaves_active_set(struct bonding *bond, | |
610 | int all_slaves_active) | |
611 | { | |
612 | struct list_head *iter; | |
613 | struct slave *slave; | |
614 | ||
615 | if (all_slaves_active == bond->params.all_slaves_active) | |
616 | return 0; | |
617 | ||
618 | if ((all_slaves_active == 0) || (all_slaves_active == 1)) { | |
619 | bond->params.all_slaves_active = all_slaves_active; | |
620 | } else { | |
621 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
622 | bond->dev->name, all_slaves_active); | |
623 | return -EINVAL; | |
624 | } | |
625 | ||
626 | bond_for_each_slave(bond, slave, iter) { | |
627 | if (!bond_is_active_slave(slave)) { | |
628 | if (all_slaves_active) | |
629 | slave->inactive = 0; | |
630 | else | |
631 | slave->inactive = 1; | |
632 | } | |
633 | } | |
634 | ||
635 | return 0; | |
636 | } | |
7d101008 | 637 | |
638 | int bond_option_min_links_set(struct bonding *bond, int min_links) | |
639 | { | |
640 | pr_info("%s: Setting min links value to %u\n", | |
641 | bond->dev->name, min_links); | |
642 | bond->params.min_links = min_links; | |
643 | ||
644 | return 0; | |
645 | } | |
8d836d09 | 646 | |
647 | int bond_option_lp_interval_set(struct bonding *bond, int lp_interval) | |
648 | { | |
649 | if (lp_interval <= 0) { | |
650 | pr_err("%s: lp_interval must be between 1 and %d\n", | |
651 | bond->dev->name, INT_MAX); | |
652 | return -EINVAL; | |
653 | } | |
654 | ||
655 | bond->params.lp_interval = lp_interval; | |
656 | ||
657 | return 0; | |
658 | } | |
c13ab3ff | 659 | |
660 | int bond_option_packets_per_slave_set(struct bonding *bond, | |
661 | int packets_per_slave) | |
662 | { | |
663 | if (packets_per_slave < 0 || packets_per_slave > USHRT_MAX) { | |
664 | pr_err("%s: packets_per_slave must be between 0 and %u\n", | |
665 | bond->dev->name, USHRT_MAX); | |
666 | return -EINVAL; | |
667 | } | |
668 | ||
669 | if (bond->params.mode != BOND_MODE_ROUNDROBIN) | |
670 | pr_warn("%s: Warning: packets_per_slave has effect only in balance-rr mode\n", | |
671 | bond->dev->name); | |
672 | ||
809fa972 HFS |
673 | bond->params.packets_per_slave = packets_per_slave; |
674 | if (packets_per_slave > 0) { | |
675 | bond->params.reciprocal_packets_per_slave = | |
c13ab3ff | 676 | reciprocal_value(packets_per_slave); |
809fa972 HFS |
677 | } else { |
678 | /* reciprocal_packets_per_slave is unused if | |
679 | * packets_per_slave is 0 or 1, just initialize it | |
680 | */ | |
681 | bond->params.reciprocal_packets_per_slave = | |
682 | (struct reciprocal_value) { 0 }; | |
683 | } | |
c13ab3ff | 684 | |
685 | return 0; | |
686 | } | |
998e40bb | 687 | |
688 | int bond_option_lacp_rate_set(struct bonding *bond, int lacp_rate) | |
689 | { | |
3243c47b | 690 | if (bond_parm_tbl_lookup(lacp_rate, bond_lacp_tbl) < 0) { |
691 | pr_err("%s: Ignoring invalid LACP rate value %d.\n", | |
692 | bond->dev->name, lacp_rate); | |
693 | return -EINVAL; | |
694 | } | |
695 | ||
998e40bb | 696 | if (bond->dev->flags & IFF_UP) { |
697 | pr_err("%s: Unable to update LACP rate because interface is up.\n", | |
698 | bond->dev->name); | |
699 | return -EPERM; | |
700 | } | |
701 | ||
702 | if (bond->params.mode != BOND_MODE_8023AD) { | |
703 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", | |
704 | bond->dev->name); | |
705 | return -EPERM; | |
706 | } | |
707 | ||
3243c47b | 708 | bond->params.lacp_fast = lacp_rate; |
709 | bond_3ad_update_lacp_rate(bond); | |
710 | pr_info("%s: Setting LACP rate to %s (%d).\n", | |
711 | bond->dev->name, bond_lacp_tbl[lacp_rate].modename, | |
712 | lacp_rate); | |
998e40bb | 713 | |
714 | return 0; | |
715 | } | |
ec029fac | 716 | |
717 | int bond_option_ad_select_set(struct bonding *bond, int ad_select) | |
718 | { | |
ec029fac | 719 | if (bond_parm_tbl_lookup(ad_select, ad_select_tbl) < 0) { |
720 | pr_err("%s: Ignoring invalid ad_select value %d.\n", | |
721 | bond->dev->name, ad_select); | |
722 | return -EINVAL; | |
723 | } | |
724 | ||
3243c47b | 725 | if (bond->dev->flags & IFF_UP) { |
726 | pr_err("%s: Unable to update ad_select because interface is up.\n", | |
727 | bond->dev->name); | |
728 | return -EPERM; | |
729 | } | |
730 | ||
ec029fac | 731 | bond->params.ad_select = ad_select; |
732 | pr_info("%s: Setting ad_select to %s (%d).\n", | |
733 | bond->dev->name, ad_select_tbl[ad_select].modename, | |
734 | ad_select); | |
735 | ||
736 | return 0; | |
737 | } |