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