Commit | Line | Data |
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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> | |
09117362 | 19 | #include <linux/ctype.h> |
4fb0ef58 | 20 | #include <linux/inet.h> |
72be35fe JP |
21 | #include "bonding.h" |
22 | ||
2b3798d5 NA |
23 | static struct bond_opt_value bond_mode_tbl[] = { |
24 | { "balance-rr", BOND_MODE_ROUNDROBIN, BOND_VALFLAG_DEFAULT}, | |
25 | { "active-backup", BOND_MODE_ACTIVEBACKUP, 0}, | |
26 | { "balance-xor", BOND_MODE_XOR, 0}, | |
27 | { "broadcast", BOND_MODE_BROADCAST, 0}, | |
28 | { "802.3ad", BOND_MODE_8023AD, 0}, | |
29 | { "balance-tlb", BOND_MODE_TLB, 0}, | |
30 | { "balance-alb", BOND_MODE_ALB, 0}, | |
31 | { NULL, -1, 0}, | |
32 | }; | |
33 | ||
aa59d851 NA |
34 | static struct bond_opt_value bond_pps_tbl[] = { |
35 | { "default", 1, BOND_VALFLAG_DEFAULT}, | |
36 | { "maxval", USHRT_MAX, BOND_VALFLAG_MAX}, | |
37 | { NULL, -1, 0}, | |
38 | }; | |
39 | ||
a4b32ce7 NA |
40 | static struct bond_opt_value bond_xmit_hashtype_tbl[] = { |
41 | { "layer2", BOND_XMIT_POLICY_LAYER2, BOND_VALFLAG_DEFAULT}, | |
42 | { "layer3+4", BOND_XMIT_POLICY_LAYER34, 0}, | |
43 | { "layer2+3", BOND_XMIT_POLICY_LAYER23, 0}, | |
44 | { "encap2+3", BOND_XMIT_POLICY_ENCAP23, 0}, | |
45 | { "encap3+4", BOND_XMIT_POLICY_ENCAP34, 0}, | |
46 | { NULL, -1, 0}, | |
47 | }; | |
48 | ||
16228881 NA |
49 | static struct bond_opt_value bond_arp_validate_tbl[] = { |
50 | { "none", BOND_ARP_VALIDATE_NONE, BOND_VALFLAG_DEFAULT}, | |
51 | { "active", BOND_ARP_VALIDATE_ACTIVE, 0}, | |
52 | { "backup", BOND_ARP_VALIDATE_BACKUP, 0}, | |
53 | { "all", BOND_ARP_VALIDATE_ALL, 0}, | |
54 | { NULL, -1, 0}, | |
55 | }; | |
56 | ||
edf36b24 NA |
57 | static struct bond_opt_value bond_arp_all_targets_tbl[] = { |
58 | { "any", BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT}, | |
59 | { "all", BOND_ARP_TARGETS_ALL, 0}, | |
60 | { NULL, -1, 0}, | |
61 | }; | |
62 | ||
1df6b6aa NA |
63 | static struct bond_opt_value bond_fail_over_mac_tbl[] = { |
64 | { "none", BOND_FOM_NONE, BOND_VALFLAG_DEFAULT}, | |
65 | { "active", BOND_FOM_ACTIVE, 0}, | |
66 | { "follow", BOND_FOM_FOLLOW, 0}, | |
67 | { NULL, -1, 0}, | |
68 | }; | |
69 | ||
7bdb04ed NA |
70 | static struct bond_opt_value bond_intmax_tbl[] = { |
71 | { "off", 0, BOND_VALFLAG_DEFAULT}, | |
72 | { "maxval", INT_MAX, BOND_VALFLAG_MAX}, | |
73 | }; | |
74 | ||
d3131de7 NA |
75 | static struct bond_opt_value bond_lacp_rate_tbl[] = { |
76 | { "slow", AD_LACP_SLOW, 0}, | |
77 | { "fast", AD_LACP_FAST, 0}, | |
78 | { NULL, -1, 0}, | |
79 | }; | |
80 | ||
9e5f5eeb NA |
81 | static struct bond_opt_value bond_ad_select_tbl[] = { |
82 | { "stable", BOND_AD_STABLE, BOND_VALFLAG_DEFAULT}, | |
83 | { "bandwidth", BOND_AD_BANDWIDTH, 0}, | |
84 | { "count", BOND_AD_COUNT, 0}, | |
85 | { NULL, -1, 0}, | |
86 | }; | |
87 | ||
ef56becb NA |
88 | static struct bond_opt_value bond_num_peer_notif_tbl[] = { |
89 | { "off", 0, 0}, | |
90 | { "maxval", 255, BOND_VALFLAG_MAX}, | |
91 | { "default", 1, BOND_VALFLAG_DEFAULT}, | |
92 | { NULL, -1, 0} | |
93 | }; | |
94 | ||
388d3a6d NA |
95 | static struct bond_opt_value bond_primary_reselect_tbl[] = { |
96 | { "always", BOND_PRI_RESELECT_ALWAYS, BOND_VALFLAG_DEFAULT}, | |
97 | { "better", BOND_PRI_RESELECT_BETTER, 0}, | |
98 | { "failure", BOND_PRI_RESELECT_FAILURE, 0}, | |
99 | { NULL, -1}, | |
100 | }; | |
101 | ||
0fff0608 NA |
102 | static struct bond_opt_value bond_use_carrier_tbl[] = { |
103 | { "off", 0, 0}, | |
104 | { "on", 1, BOND_VALFLAG_DEFAULT}, | |
105 | { NULL, -1, 0} | |
106 | }; | |
107 | ||
09117362 | 108 | static struct bond_option bond_opts[] = { |
2b3798d5 NA |
109 | [BOND_OPT_MODE] = { |
110 | .id = BOND_OPT_MODE, | |
111 | .name = "mode", | |
112 | .desc = "bond device mode", | |
113 | .flags = BOND_OPTFLAG_NOSLAVES | BOND_OPTFLAG_IFDOWN, | |
114 | .values = bond_mode_tbl, | |
115 | .set = bond_option_mode_set | |
116 | }, | |
aa59d851 NA |
117 | [BOND_OPT_PACKETS_PER_SLAVE] = { |
118 | .id = BOND_OPT_PACKETS_PER_SLAVE, | |
119 | .name = "packets_per_slave", | |
120 | .desc = "Packets to send per slave in RR mode", | |
121 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ROUNDROBIN)), | |
122 | .values = bond_pps_tbl, | |
123 | .set = bond_option_pps_set | |
124 | }, | |
a4b32ce7 NA |
125 | [BOND_OPT_XMIT_HASH] = { |
126 | .id = BOND_OPT_XMIT_HASH, | |
127 | .name = "xmit_hash_policy", | |
128 | .desc = "balance-xor and 802.3ad hashing method", | |
129 | .values = bond_xmit_hashtype_tbl, | |
130 | .set = bond_option_xmit_hash_policy_set | |
131 | }, | |
16228881 NA |
132 | [BOND_OPT_ARP_VALIDATE] = { |
133 | .id = BOND_OPT_ARP_VALIDATE, | |
134 | .name = "arp_validate", | |
135 | .desc = "validate src/dst of ARP probes", | |
136 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP)), | |
137 | .values = bond_arp_validate_tbl, | |
138 | .set = bond_option_arp_validate_set | |
139 | }, | |
edf36b24 NA |
140 | [BOND_OPT_ARP_ALL_TARGETS] = { |
141 | .id = BOND_OPT_ARP_ALL_TARGETS, | |
142 | .name = "arp_all_targets", | |
143 | .desc = "fail on any/all arp targets timeout", | |
144 | .values = bond_arp_all_targets_tbl, | |
145 | .set = bond_option_arp_all_targets_set | |
146 | }, | |
1df6b6aa NA |
147 | [BOND_OPT_FAIL_OVER_MAC] = { |
148 | .id = BOND_OPT_FAIL_OVER_MAC, | |
149 | .name = "fail_over_mac", | |
150 | .desc = "For active-backup, do not set all slaves to the same MAC", | |
151 | .flags = BOND_OPTFLAG_NOSLAVES, | |
152 | .values = bond_fail_over_mac_tbl, | |
153 | .set = bond_option_fail_over_mac_set | |
154 | }, | |
7bdb04ed NA |
155 | [BOND_OPT_ARP_INTERVAL] = { |
156 | .id = BOND_OPT_ARP_INTERVAL, | |
157 | .name = "arp_interval", | |
158 | .desc = "arp interval in milliseconds", | |
159 | .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) | | |
160 | BIT(BOND_MODE_ALB), | |
161 | .values = bond_intmax_tbl, | |
162 | .set = bond_option_arp_interval_set | |
163 | }, | |
4fb0ef58 NA |
164 | [BOND_OPT_ARP_TARGETS] = { |
165 | .id = BOND_OPT_ARP_TARGETS, | |
166 | .name = "arp_ip_target", | |
167 | .desc = "arp targets in n.n.n.n form", | |
168 | .flags = BOND_OPTFLAG_RAWVAL, | |
169 | .set = bond_option_arp_ip_targets_set | |
170 | }, | |
25a9b54a NA |
171 | [BOND_OPT_DOWNDELAY] = { |
172 | .id = BOND_OPT_DOWNDELAY, | |
173 | .name = "downdelay", | |
174 | .desc = "Delay before considering link down, in milliseconds", | |
175 | .values = bond_intmax_tbl, | |
176 | .set = bond_option_downdelay_set | |
177 | }, | |
e4994612 NA |
178 | [BOND_OPT_UPDELAY] = { |
179 | .id = BOND_OPT_UPDELAY, | |
180 | .name = "updelay", | |
181 | .desc = "Delay before considering link up, in milliseconds", | |
182 | .values = bond_intmax_tbl, | |
183 | .set = bond_option_updelay_set | |
184 | }, | |
d3131de7 NA |
185 | [BOND_OPT_LACP_RATE] = { |
186 | .id = BOND_OPT_LACP_RATE, | |
187 | .name = "lacp_rate", | |
188 | .desc = "LACPDU tx rate to request from 802.3ad partner", | |
189 | .flags = BOND_OPTFLAG_IFDOWN, | |
190 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), | |
191 | .values = bond_lacp_rate_tbl, | |
192 | .set = bond_option_lacp_rate_set | |
193 | }, | |
633ddc9e NA |
194 | [BOND_OPT_MINLINKS] = { |
195 | .id = BOND_OPT_MINLINKS, | |
196 | .name = "min_links", | |
197 | .desc = "Minimum number of available links before turning on carrier", | |
198 | .values = bond_intmax_tbl, | |
199 | .set = bond_option_min_links_set | |
200 | }, | |
9e5f5eeb NA |
201 | [BOND_OPT_AD_SELECT] = { |
202 | .id = BOND_OPT_AD_SELECT, | |
203 | .name = "ad_select", | |
204 | .desc = "803.ad aggregation selection logic", | |
205 | .flags = BOND_OPTFLAG_IFDOWN, | |
206 | .values = bond_ad_select_tbl, | |
207 | .set = bond_option_ad_select_set | |
208 | }, | |
ef56becb NA |
209 | [BOND_OPT_NUM_PEER_NOTIF] = { |
210 | .id = BOND_OPT_NUM_PEER_NOTIF, | |
211 | .name = "num_unsol_na", | |
212 | .desc = "Number of peer notifications to send on failover event", | |
213 | .values = bond_num_peer_notif_tbl, | |
214 | .set = bond_option_num_peer_notif_set | |
215 | }, | |
b98d9c66 NA |
216 | [BOND_OPT_MIIMON] = { |
217 | .id = BOND_OPT_MIIMON, | |
218 | .name = "miimon", | |
219 | .desc = "Link check interval in milliseconds", | |
220 | .values = bond_intmax_tbl, | |
221 | .set = bond_option_miimon_set | |
222 | }, | |
180222f0 NA |
223 | [BOND_OPT_PRIMARY] = { |
224 | .id = BOND_OPT_PRIMARY, | |
225 | .name = "primary", | |
226 | .desc = "Primary network device to use", | |
227 | .flags = BOND_OPTFLAG_RAWVAL, | |
228 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | | |
229 | BIT(BOND_MODE_TLB) | | |
230 | BIT(BOND_MODE_ALB)), | |
231 | .set = bond_option_primary_set | |
232 | }, | |
388d3a6d NA |
233 | [BOND_OPT_PRIMARY_RESELECT] = { |
234 | .id = BOND_OPT_PRIMARY_RESELECT, | |
235 | .name = "primary_reselect", | |
236 | .desc = "Reselect primary slave once it comes up", | |
237 | .values = bond_primary_reselect_tbl, | |
238 | .set = bond_option_primary_reselect_set | |
239 | }, | |
0fff0608 NA |
240 | [BOND_OPT_USE_CARRIER] = { |
241 | .id = BOND_OPT_USE_CARRIER, | |
242 | .name = "use_carrier", | |
243 | .desc = "Use netif_carrier_ok (vs MII ioctls) in miimon", | |
244 | .values = bond_use_carrier_tbl, | |
245 | .set = bond_option_use_carrier_set | |
246 | }, | |
09117362 NA |
247 | { } |
248 | }; | |
249 | ||
250 | /* Searches for a value in opt's values[] table */ | |
251 | struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val) | |
252 | { | |
253 | struct bond_option *opt; | |
254 | int i; | |
255 | ||
256 | opt = bond_opt_get(option); | |
257 | if (WARN_ON(!opt)) | |
258 | return NULL; | |
259 | for (i = 0; opt->values && opt->values[i].string; i++) | |
260 | if (opt->values[i].value == val) | |
261 | return &opt->values[i]; | |
262 | ||
263 | return NULL; | |
264 | } | |
265 | ||
266 | /* Searches for a value in opt's values[] table which matches the flagmask */ | |
267 | static struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt, | |
268 | u32 flagmask) | |
269 | { | |
270 | int i; | |
271 | ||
272 | for (i = 0; opt->values && opt->values[i].string; i++) | |
273 | if (opt->values[i].flags & flagmask) | |
274 | return &opt->values[i]; | |
275 | ||
276 | return NULL; | |
277 | } | |
278 | ||
279 | /* If maxval is missing then there's no range to check. In case minval is | |
280 | * missing then it's considered to be 0. | |
281 | */ | |
282 | static bool bond_opt_check_range(const struct bond_option *opt, u64 val) | |
283 | { | |
284 | struct bond_opt_value *minval, *maxval; | |
285 | ||
286 | minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN); | |
287 | maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX); | |
288 | if (!maxval || (minval && val < minval->value) || val > maxval->value) | |
289 | return false; | |
290 | ||
291 | return true; | |
292 | } | |
293 | ||
294 | /** | |
295 | * bond_opt_parse - parse option value | |
296 | * @opt: the option to parse against | |
297 | * @val: value to parse | |
298 | * | |
299 | * This function tries to extract the value from @val and check if it's | |
300 | * a possible match for the option and returns NULL if a match isn't found, | |
301 | * or the struct_opt_value that matched. It also strips the new line from | |
302 | * @val->string if it's present. | |
303 | */ | |
304 | struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, | |
305 | struct bond_opt_value *val) | |
306 | { | |
307 | char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, }; | |
308 | struct bond_opt_value *tbl, *ret = NULL; | |
309 | bool checkval; | |
310 | int i, rv; | |
311 | ||
312 | /* No parsing if the option wants a raw val */ | |
313 | if (opt->flags & BOND_OPTFLAG_RAWVAL) | |
314 | return val; | |
315 | ||
316 | tbl = opt->values; | |
317 | if (!tbl) | |
318 | goto out; | |
319 | ||
320 | /* ULLONG_MAX is used to bypass string processing */ | |
321 | checkval = val->value != ULLONG_MAX; | |
322 | if (!checkval) { | |
323 | if (!val->string) | |
324 | goto out; | |
325 | p = strchr(val->string, '\n'); | |
326 | if (p) | |
327 | *p = '\0'; | |
328 | for (p = val->string; *p; p++) | |
329 | if (!(isdigit(*p) || isspace(*p))) | |
330 | break; | |
331 | /* The following code extracts the string to match or the value | |
332 | * and sets checkval appropriately | |
333 | */ | |
334 | if (*p) { | |
335 | rv = sscanf(val->string, "%32s", valstr); | |
336 | } else { | |
337 | rv = sscanf(val->string, "%llu", &val->value); | |
338 | checkval = true; | |
339 | } | |
340 | if (!rv) | |
341 | goto out; | |
342 | } | |
343 | ||
344 | for (i = 0; tbl[i].string; i++) { | |
345 | /* Check for exact match */ | |
346 | if (checkval) { | |
347 | if (val->value == tbl[i].value) | |
348 | ret = &tbl[i]; | |
349 | } else { | |
350 | if (!strcmp(valstr, "default") && | |
351 | (tbl[i].flags & BOND_VALFLAG_DEFAULT)) | |
352 | ret = &tbl[i]; | |
353 | ||
354 | if (!strcmp(valstr, tbl[i].string)) | |
355 | ret = &tbl[i]; | |
356 | } | |
357 | /* Found an exact match */ | |
358 | if (ret) | |
359 | goto out; | |
360 | } | |
361 | /* Possible range match */ | |
362 | if (checkval && bond_opt_check_range(opt, val->value)) | |
363 | ret = val; | |
364 | out: | |
365 | return ret; | |
366 | } | |
367 | ||
368 | /* Check opt's dependencies against bond mode and currently set options */ | |
369 | static int bond_opt_check_deps(struct bonding *bond, | |
370 | const struct bond_option *opt) | |
371 | { | |
372 | struct bond_params *params = &bond->params; | |
373 | ||
374 | if (test_bit(params->mode, &opt->unsuppmodes)) | |
375 | return -EACCES; | |
376 | if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond)) | |
377 | return -ENOTEMPTY; | |
378 | if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP)) | |
379 | return -EBUSY; | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
384 | static void bond_opt_dep_print(struct bonding *bond, | |
385 | const struct bond_option *opt) | |
386 | { | |
2b3798d5 | 387 | struct bond_opt_value *modeval; |
09117362 NA |
388 | struct bond_params *params; |
389 | ||
390 | params = &bond->params; | |
2b3798d5 | 391 | modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode); |
09117362 | 392 | if (test_bit(params->mode, &opt->unsuppmodes)) |
2b3798d5 NA |
393 | pr_err("%s: option %s: mode dependency failed, not supported in mode %s(%llu)\n", |
394 | bond->dev->name, opt->name, | |
395 | modeval->string, modeval->value); | |
09117362 NA |
396 | } |
397 | ||
398 | static void bond_opt_error_interpret(struct bonding *bond, | |
399 | const struct bond_option *opt, | |
400 | int error, struct bond_opt_value *val) | |
401 | { | |
402 | struct bond_opt_value *minval, *maxval; | |
403 | char *p; | |
404 | ||
405 | switch (error) { | |
406 | case -EINVAL: | |
407 | if (val) { | |
408 | if (val->string) { | |
409 | /* sometimes RAWVAL opts may have new lines */ | |
410 | p = strchr(val->string, '\n'); | |
411 | if (p) | |
412 | *p = '\0'; | |
413 | pr_err("%s: option %s: invalid value (%s).\n", | |
414 | bond->dev->name, opt->name, val->string); | |
415 | } else { | |
416 | pr_err("%s: option %s: invalid value (%llu).\n", | |
417 | bond->dev->name, opt->name, val->value); | |
418 | } | |
419 | } | |
420 | minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN); | |
421 | maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX); | |
422 | if (!maxval) | |
423 | break; | |
424 | pr_err("%s: option %s: allowed values %llu - %llu.\n", | |
425 | bond->dev->name, opt->name, minval ? minval->value : 0, | |
426 | maxval->value); | |
427 | break; | |
428 | case -EACCES: | |
429 | bond_opt_dep_print(bond, opt); | |
430 | break; | |
431 | case -ENOTEMPTY: | |
432 | pr_err("%s: option %s: unable to set because the bond device has slaves.\n", | |
433 | bond->dev->name, opt->name); | |
434 | break; | |
435 | case -EBUSY: | |
436 | pr_err("%s: option %s: unable to set because the bond device is up.\n", | |
437 | bond->dev->name, opt->name); | |
438 | break; | |
439 | default: | |
440 | break; | |
441 | } | |
442 | } | |
443 | ||
444 | /** | |
445 | * __bond_opt_set - set a bonding option | |
446 | * @bond: target bond device | |
447 | * @option: option to set | |
448 | * @val: value to set it to | |
449 | * | |
450 | * This function is used to change the bond's option value, it can be | |
451 | * used for both enabling/changing an option and for disabling it. RTNL lock | |
452 | * must be obtained before calling this function. | |
453 | */ | |
454 | int __bond_opt_set(struct bonding *bond, | |
455 | unsigned int option, struct bond_opt_value *val) | |
456 | { | |
457 | struct bond_opt_value *retval = NULL; | |
458 | const struct bond_option *opt; | |
459 | int ret = -ENOENT; | |
460 | ||
461 | ASSERT_RTNL(); | |
462 | ||
463 | opt = bond_opt_get(option); | |
464 | if (WARN_ON(!val) || WARN_ON(!opt)) | |
465 | goto out; | |
466 | ret = bond_opt_check_deps(bond, opt); | |
467 | if (ret) | |
468 | goto out; | |
469 | retval = bond_opt_parse(opt, val); | |
470 | if (!retval) { | |
471 | ret = -EINVAL; | |
472 | goto out; | |
473 | } | |
474 | ret = opt->set(bond, retval); | |
475 | out: | |
476 | if (ret) | |
477 | bond_opt_error_interpret(bond, opt, ret, val); | |
478 | ||
479 | return ret; | |
480 | } | |
481 | ||
482 | /** | |
483 | * bond_opt_tryset_rtnl - try to acquire rtnl and call __bond_opt_set | |
484 | * @bond: target bond device | |
485 | * @option: option to set | |
486 | * @buf: value to set it to | |
487 | * | |
488 | * This function tries to acquire RTNL without blocking and if successful | |
489 | * calls __bond_opt_set. It is mainly used for sysfs option manipulation. | |
490 | */ | |
491 | int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf) | |
492 | { | |
493 | struct bond_opt_value optval; | |
494 | int ret; | |
495 | ||
496 | if (!rtnl_trylock()) | |
497 | return restart_syscall(); | |
498 | bond_opt_initstr(&optval, buf); | |
499 | ret = __bond_opt_set(bond, option, &optval); | |
500 | rtnl_unlock(); | |
501 | ||
502 | return ret; | |
503 | } | |
504 | ||
505 | /** | |
506 | * bond_opt_get - get a pointer to an option | |
507 | * @option: option for which to return a pointer | |
508 | * | |
509 | * This function checks if option is valid and if so returns a pointer | |
510 | * to its entry in the bond_opts[] option array. | |
511 | */ | |
512 | struct bond_option *bond_opt_get(unsigned int option) | |
513 | { | |
514 | if (!BOND_OPT_VALID(option)) | |
515 | return NULL; | |
516 | ||
517 | return &bond_opts[option]; | |
518 | } | |
519 | ||
2b3798d5 | 520 | int bond_option_mode_set(struct bonding *bond, struct bond_opt_value *newval) |
72be35fe | 521 | { |
2b3798d5 | 522 | if (BOND_NO_USES_ARP(newval->value) && bond->params.arp_interval) { |
fe9d04af | 523 | pr_info("%s: %s mode is incompatible with arp monitoring, start mii monitoring\n", |
2b3798d5 | 524 | bond->dev->name, newval->string); |
fe9d04af | 525 | /* disable arp monitoring */ |
526 | bond->params.arp_interval = 0; | |
527 | /* set miimon to default value */ | |
528 | bond->params.miimon = BOND_DEFAULT_MIIMON; | |
529 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
530 | bond->dev->name, bond->params.miimon); | |
72be35fe JP |
531 | } |
532 | ||
533 | /* don't cache arp_validate between modes */ | |
534 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
2b3798d5 NA |
535 | bond->params.mode = newval->value; |
536 | ||
72be35fe JP |
537 | return 0; |
538 | } | |
d9e32b21 | 539 | |
752d48b5 JP |
540 | static struct net_device *__bond_option_active_slave_get(struct bonding *bond, |
541 | struct slave *slave) | |
542 | { | |
543 | return USES_PRIMARY(bond->params.mode) && slave ? slave->dev : NULL; | |
544 | } | |
545 | ||
546 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) | |
547 | { | |
548 | struct slave *slave = rcu_dereference(bond->curr_active_slave); | |
549 | ||
550 | return __bond_option_active_slave_get(bond, slave); | |
551 | } | |
552 | ||
553 | struct net_device *bond_option_active_slave_get(struct bonding *bond) | |
554 | { | |
555 | return __bond_option_active_slave_get(bond, bond->curr_active_slave); | |
556 | } | |
557 | ||
d9e32b21 JP |
558 | int bond_option_active_slave_set(struct bonding *bond, |
559 | struct net_device *slave_dev) | |
560 | { | |
561 | int ret = 0; | |
562 | ||
563 | if (slave_dev) { | |
564 | if (!netif_is_bond_slave(slave_dev)) { | |
565 | pr_err("Device %s is not bonding slave.\n", | |
566 | slave_dev->name); | |
567 | return -EINVAL; | |
568 | } | |
569 | ||
570 | if (bond->dev != netdev_master_upper_dev_get(slave_dev)) { | |
571 | pr_err("%s: Device %s is not our slave.\n", | |
572 | bond->dev->name, slave_dev->name); | |
573 | return -EINVAL; | |
574 | } | |
575 | } | |
576 | ||
577 | if (!USES_PRIMARY(bond->params.mode)) { | |
578 | pr_err("%s: Unable to change active slave; %s is in mode %d\n", | |
579 | bond->dev->name, bond->dev->name, bond->params.mode); | |
580 | return -EINVAL; | |
581 | } | |
582 | ||
583 | block_netpoll_tx(); | |
d9e32b21 JP |
584 | write_lock_bh(&bond->curr_slave_lock); |
585 | ||
586 | /* check to see if we are clearing active */ | |
587 | if (!slave_dev) { | |
588 | pr_info("%s: Clearing current active slave.\n", | |
589 | bond->dev->name); | |
590 | rcu_assign_pointer(bond->curr_active_slave, NULL); | |
591 | bond_select_active_slave(bond); | |
592 | } else { | |
593 | struct slave *old_active = bond->curr_active_slave; | |
594 | struct slave *new_active = bond_slave_get_rtnl(slave_dev); | |
595 | ||
596 | BUG_ON(!new_active); | |
597 | ||
598 | if (new_active == old_active) { | |
599 | /* do nothing */ | |
600 | pr_info("%s: %s is already the current active slave.\n", | |
601 | bond->dev->name, new_active->dev->name); | |
602 | } else { | |
603 | if (old_active && (new_active->link == BOND_LINK_UP) && | |
604 | IS_UP(new_active->dev)) { | |
605 | pr_info("%s: Setting %s as active slave.\n", | |
606 | bond->dev->name, new_active->dev->name); | |
607 | bond_change_active_slave(bond, new_active); | |
608 | } else { | |
609 | pr_err("%s: Could not set %s as active slave; either %s is down or the link is down.\n", | |
610 | bond->dev->name, new_active->dev->name, | |
611 | new_active->dev->name); | |
612 | ret = -EINVAL; | |
613 | } | |
614 | } | |
615 | } | |
616 | ||
617 | write_unlock_bh(&bond->curr_slave_lock); | |
d9e32b21 JP |
618 | unblock_netpoll_tx(); |
619 | return ret; | |
620 | } | |
eecdaa6e | 621 | |
b98d9c66 | 622 | int bond_option_miimon_set(struct bonding *bond, struct bond_opt_value *newval) |
eecdaa6e | 623 | { |
b98d9c66 NA |
624 | pr_info("%s: Setting MII monitoring interval to %llu.\n", |
625 | bond->dev->name, newval->value); | |
626 | bond->params.miimon = newval->value; | |
eecdaa6e | 627 | if (bond->params.updelay) |
628 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
629 | bond->dev->name, | |
630 | bond->params.updelay * bond->params.miimon); | |
631 | if (bond->params.downdelay) | |
632 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
633 | bond->dev->name, | |
634 | bond->params.downdelay * bond->params.miimon); | |
b98d9c66 | 635 | if (newval->value && bond->params.arp_interval) { |
eecdaa6e | 636 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
637 | bond->dev->name); | |
638 | bond->params.arp_interval = 0; | |
639 | if (bond->params.arp_validate) | |
640 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
641 | } | |
642 | if (bond->dev->flags & IFF_UP) { | |
643 | /* If the interface is up, we may need to fire off | |
644 | * the MII timer. If the interface is down, the | |
645 | * timer will get fired off when the open function | |
646 | * is called. | |
647 | */ | |
b98d9c66 | 648 | if (!newval->value) { |
eecdaa6e | 649 | cancel_delayed_work_sync(&bond->mii_work); |
650 | } else { | |
651 | cancel_delayed_work_sync(&bond->arp_work); | |
652 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
653 | } | |
654 | } | |
b98d9c66 | 655 | |
eecdaa6e | 656 | return 0; |
657 | } | |
25852e29 | 658 | |
e4994612 | 659 | int bond_option_updelay_set(struct bonding *bond, struct bond_opt_value *newval) |
25852e29 | 660 | { |
e4994612 | 661 | if (!bond->params.miimon) { |
25852e29 | 662 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
663 | bond->dev->name); | |
664 | return -EPERM; | |
665 | } | |
e4994612 NA |
666 | if ((newval->value % bond->params.miimon) != 0) { |
667 | pr_warn("%s: Warning: up delay (%llu) is not a multiple of miimon (%d), updelay rounded to %llu ms\n", | |
668 | bond->dev->name, newval->value, | |
669 | bond->params.miimon, | |
670 | (newval->value / bond->params.miimon) * | |
671 | bond->params.miimon); | |
25852e29 | 672 | } |
e4994612 NA |
673 | bond->params.updelay = newval->value / bond->params.miimon; |
674 | pr_info("%s: Setting up delay to %d.\n", | |
675 | bond->dev->name, | |
676 | bond->params.updelay * bond->params.miimon); | |
25852e29 | 677 | |
678 | return 0; | |
679 | } | |
c7461f9b | 680 | |
25a9b54a NA |
681 | int bond_option_downdelay_set(struct bonding *bond, |
682 | struct bond_opt_value *newval) | |
c7461f9b | 683 | { |
25a9b54a | 684 | if (!bond->params.miimon) { |
c7461f9b | 685 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
686 | bond->dev->name); | |
687 | return -EPERM; | |
688 | } | |
25a9b54a NA |
689 | if ((newval->value % bond->params.miimon) != 0) { |
690 | pr_warn("%s: Warning: down delay (%llu) is not a multiple of miimon (%d), delay rounded to %llu ms\n", | |
691 | bond->dev->name, newval->value, | |
692 | bond->params.miimon, | |
693 | (newval->value / bond->params.miimon) * | |
694 | bond->params.miimon); | |
c7461f9b | 695 | } |
25a9b54a NA |
696 | bond->params.downdelay = newval->value / bond->params.miimon; |
697 | pr_info("%s: Setting down delay to %d.\n", | |
698 | bond->dev->name, | |
699 | bond->params.downdelay * bond->params.miimon); | |
c7461f9b | 700 | |
701 | return 0; | |
702 | } | |
9f53e14e | 703 | |
0fff0608 NA |
704 | int bond_option_use_carrier_set(struct bonding *bond, |
705 | struct bond_opt_value *newval) | |
9f53e14e | 706 | { |
0fff0608 NA |
707 | pr_info("%s: Setting use_carrier to %llu.\n", |
708 | bond->dev->name, newval->value); | |
709 | bond->params.use_carrier = newval->value; | |
9f53e14e | 710 | |
711 | return 0; | |
712 | } | |
06151dbc | 713 | |
7bdb04ed NA |
714 | int bond_option_arp_interval_set(struct bonding *bond, |
715 | struct bond_opt_value *newval) | |
06151dbc | 716 | { |
7bdb04ed NA |
717 | pr_info("%s: Setting ARP monitoring interval to %llu.\n", |
718 | bond->dev->name, newval->value); | |
719 | bond->params.arp_interval = newval->value; | |
720 | if (newval->value) { | |
06151dbc | 721 | if (bond->params.miimon) { |
722 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
723 | bond->dev->name, bond->dev->name); | |
724 | bond->params.miimon = 0; | |
725 | } | |
726 | if (!bond->params.arp_targets[0]) | |
727 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
728 | bond->dev->name); | |
729 | } | |
730 | if (bond->dev->flags & IFF_UP) { | |
731 | /* If the interface is up, we may need to fire off | |
732 | * the ARP timer. If the interface is down, the | |
733 | * timer will get fired off when the open function | |
734 | * is called. | |
735 | */ | |
7bdb04ed | 736 | if (!newval->value) { |
06151dbc | 737 | if (bond->params.arp_validate) |
738 | bond->recv_probe = NULL; | |
739 | cancel_delayed_work_sync(&bond->arp_work); | |
740 | } else { | |
741 | /* arp_validate can be set only in active-backup mode */ | |
742 | if (bond->params.arp_validate) | |
743 | bond->recv_probe = bond_arp_rcv; | |
744 | cancel_delayed_work_sync(&bond->mii_work); | |
745 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
746 | } | |
747 | } | |
748 | ||
749 | return 0; | |
750 | } | |
7f28fa10 | 751 | |
752 | static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot, | |
753 | __be32 target, | |
754 | unsigned long last_rx) | |
755 | { | |
756 | __be32 *targets = bond->params.arp_targets; | |
757 | struct list_head *iter; | |
758 | struct slave *slave; | |
759 | ||
760 | if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) { | |
761 | bond_for_each_slave(bond, slave, iter) | |
762 | slave->target_last_arp_rx[slot] = last_rx; | |
763 | targets[slot] = target; | |
764 | } | |
765 | } | |
766 | ||
767 | static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
768 | { | |
769 | __be32 *targets = bond->params.arp_targets; | |
770 | int ind; | |
771 | ||
772 | if (IS_IP_TARGET_UNUSABLE_ADDRESS(target)) { | |
773 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", | |
774 | bond->dev->name, &target); | |
775 | return -EINVAL; | |
776 | } | |
777 | ||
778 | if (bond_get_targets_ip(targets, target) != -1) { /* dup */ | |
779 | pr_err("%s: ARP target %pI4 is already present\n", | |
780 | bond->dev->name, &target); | |
781 | return -EINVAL; | |
782 | } | |
783 | ||
784 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ | |
785 | if (ind == -1) { | |
786 | pr_err("%s: ARP target table is full!\n", | |
787 | bond->dev->name); | |
788 | return -EINVAL; | |
789 | } | |
790 | ||
791 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, &target); | |
792 | ||
793 | _bond_options_arp_ip_target_set(bond, ind, target, jiffies); | |
794 | ||
795 | return 0; | |
796 | } | |
797 | ||
798 | int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
799 | { | |
800 | int ret; | |
801 | ||
802 | /* not to race with bond_arp_rcv */ | |
803 | write_lock_bh(&bond->lock); | |
804 | ret = _bond_option_arp_ip_target_add(bond, target); | |
805 | write_unlock_bh(&bond->lock); | |
806 | ||
807 | return ret; | |
808 | } | |
809 | ||
810 | int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target) | |
811 | { | |
812 | __be32 *targets = bond->params.arp_targets; | |
813 | struct list_head *iter; | |
814 | struct slave *slave; | |
815 | unsigned long *targets_rx; | |
816 | int ind, i; | |
817 | ||
818 | if (IS_IP_TARGET_UNUSABLE_ADDRESS(target)) { | |
819 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", | |
820 | bond->dev->name, &target); | |
821 | return -EINVAL; | |
822 | } | |
823 | ||
824 | ind = bond_get_targets_ip(targets, target); | |
825 | if (ind == -1) { | |
826 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
827 | bond->dev->name, &target); | |
828 | return -EINVAL; | |
829 | } | |
830 | ||
831 | if (ind == 0 && !targets[1] && bond->params.arp_interval) | |
832 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
833 | bond->dev->name); | |
834 | ||
835 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, | |
836 | &target); | |
837 | ||
838 | /* not to race with bond_arp_rcv */ | |
839 | write_lock_bh(&bond->lock); | |
840 | ||
841 | bond_for_each_slave(bond, slave, iter) { | |
842 | targets_rx = slave->target_last_arp_rx; | |
843 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
844 | targets_rx[i] = targets_rx[i+1]; | |
845 | targets_rx[i] = 0; | |
846 | } | |
847 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
848 | targets[i] = targets[i+1]; | |
849 | targets[i] = 0; | |
850 | ||
851 | write_unlock_bh(&bond->lock); | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
4fb0ef58 | 856 | void bond_option_arp_ip_targets_clear(struct bonding *bond) |
7f28fa10 | 857 | { |
4fb0ef58 | 858 | int i; |
7f28fa10 | 859 | |
860 | /* not to race with bond_arp_rcv */ | |
861 | write_lock_bh(&bond->lock); | |
7f28fa10 | 862 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) |
863 | _bond_options_arp_ip_target_set(bond, i, 0, 0); | |
4fb0ef58 NA |
864 | write_unlock_bh(&bond->lock); |
865 | } | |
7f28fa10 | 866 | |
4fb0ef58 NA |
867 | int bond_option_arp_ip_targets_set(struct bonding *bond, |
868 | struct bond_opt_value *newval) | |
869 | { | |
870 | int ret = -EPERM; | |
871 | __be32 target; | |
872 | ||
873 | if (newval->string) { | |
874 | if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) { | |
875 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
876 | bond->dev->name, &target); | |
877 | return ret; | |
878 | } | |
879 | if (newval->string[0] == '+') | |
880 | ret = bond_option_arp_ip_target_add(bond, target); | |
881 | else if (newval->string[0] == '-') | |
882 | ret = bond_option_arp_ip_target_rem(bond, target); | |
883 | else | |
884 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", | |
885 | bond->dev->name); | |
886 | } else { | |
887 | target = newval->value; | |
888 | ret = bond_option_arp_ip_target_add(bond, target); | |
7f28fa10 | 889 | } |
890 | ||
7f28fa10 | 891 | return ret; |
892 | } | |
29c49482 | 893 | |
16228881 NA |
894 | int bond_option_arp_validate_set(struct bonding *bond, |
895 | struct bond_opt_value *newval) | |
29c49482 | 896 | { |
16228881 NA |
897 | pr_info("%s: setting arp_validate to %s (%llu).\n", |
898 | bond->dev->name, newval->string, newval->value); | |
29c49482 | 899 | |
900 | if (bond->dev->flags & IFF_UP) { | |
16228881 | 901 | if (!newval->value) |
29c49482 | 902 | bond->recv_probe = NULL; |
903 | else if (bond->params.arp_interval) | |
904 | bond->recv_probe = bond_arp_rcv; | |
905 | } | |
16228881 | 906 | bond->params.arp_validate = newval->value; |
29c49482 | 907 | |
908 | return 0; | |
909 | } | |
d5c84254 | 910 | |
edf36b24 NA |
911 | int bond_option_arp_all_targets_set(struct bonding *bond, |
912 | struct bond_opt_value *newval) | |
d5c84254 | 913 | { |
edf36b24 NA |
914 | pr_info("%s: setting arp_all_targets to %s (%llu).\n", |
915 | bond->dev->name, newval->string, newval->value); | |
916 | bond->params.arp_all_targets = newval->value; | |
d5c84254 | 917 | |
918 | return 0; | |
919 | } | |
0a98a0d1 | 920 | |
180222f0 | 921 | int bond_option_primary_set(struct bonding *bond, struct bond_opt_value *newval) |
0a98a0d1 | 922 | { |
180222f0 | 923 | char *p, *primary = newval->string; |
0a98a0d1 | 924 | struct list_head *iter; |
925 | struct slave *slave; | |
0a98a0d1 | 926 | |
927 | block_netpoll_tx(); | |
928 | read_lock(&bond->lock); | |
929 | write_lock_bh(&bond->curr_slave_lock); | |
930 | ||
180222f0 NA |
931 | p = strchr(primary, '\n'); |
932 | if (p) | |
933 | *p = '\0'; | |
0a98a0d1 | 934 | /* check to see if we are clearing primary */ |
935 | if (!strlen(primary)) { | |
936 | pr_info("%s: Setting primary slave to None.\n", | |
937 | bond->dev->name); | |
938 | bond->primary_slave = NULL; | |
939 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); | |
940 | bond_select_active_slave(bond); | |
941 | goto out; | |
942 | } | |
943 | ||
944 | bond_for_each_slave(bond, slave, iter) { | |
945 | if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) { | |
946 | pr_info("%s: Setting %s as primary slave.\n", | |
947 | bond->dev->name, slave->dev->name); | |
948 | bond->primary_slave = slave; | |
949 | strcpy(bond->params.primary, slave->dev->name); | |
950 | bond_select_active_slave(bond); | |
951 | goto out; | |
952 | } | |
953 | } | |
954 | ||
955 | strncpy(bond->params.primary, primary, IFNAMSIZ); | |
956 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
957 | ||
958 | pr_info("%s: Recording %s as primary, but it has not been enslaved to %s yet.\n", | |
959 | bond->dev->name, primary, bond->dev->name); | |
960 | ||
961 | out: | |
962 | write_unlock_bh(&bond->curr_slave_lock); | |
963 | read_unlock(&bond->lock); | |
964 | unblock_netpoll_tx(); | |
965 | ||
180222f0 | 966 | return 0; |
0a98a0d1 | 967 | } |
8a41ae44 | 968 | |
388d3a6d NA |
969 | int bond_option_primary_reselect_set(struct bonding *bond, |
970 | struct bond_opt_value *newval) | |
8a41ae44 | 971 | { |
388d3a6d NA |
972 | pr_info("%s: setting primary_reselect to %s (%llu).\n", |
973 | bond->dev->name, newval->string, newval->value); | |
974 | bond->params.primary_reselect = newval->value; | |
8a41ae44 | 975 | |
976 | block_netpoll_tx(); | |
977 | write_lock_bh(&bond->curr_slave_lock); | |
978 | bond_select_active_slave(bond); | |
979 | write_unlock_bh(&bond->curr_slave_lock); | |
980 | unblock_netpoll_tx(); | |
981 | ||
982 | return 0; | |
983 | } | |
89901972 | 984 | |
1df6b6aa NA |
985 | int bond_option_fail_over_mac_set(struct bonding *bond, |
986 | struct bond_opt_value *newval) | |
89901972 | 987 | { |
1df6b6aa NA |
988 | pr_info("%s: Setting fail_over_mac to %s (%llu).\n", |
989 | bond->dev->name, newval->string, newval->value); | |
990 | bond->params.fail_over_mac = newval->value; | |
89901972 | 991 | |
992 | return 0; | |
993 | } | |
f70161c6 | 994 | |
a4b32ce7 NA |
995 | int bond_option_xmit_hash_policy_set(struct bonding *bond, |
996 | struct bond_opt_value *newval) | |
f70161c6 | 997 | { |
a4b32ce7 NA |
998 | pr_info("%s: setting xmit hash policy to %s (%llu).\n", |
999 | bond->dev->name, newval->string, newval->value); | |
1000 | bond->params.xmit_policy = newval->value; | |
f70161c6 | 1001 | |
1002 | return 0; | |
1003 | } | |
d8838de7 | 1004 | |
1005 | int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp) | |
1006 | { | |
1007 | if (resend_igmp < 0 || resend_igmp > 255) { | |
1008 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", | |
1009 | bond->dev->name, resend_igmp); | |
1010 | return -EINVAL; | |
1011 | } | |
1012 | ||
1013 | bond->params.resend_igmp = resend_igmp; | |
1014 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1015 | bond->dev->name, resend_igmp); | |
1016 | ||
1017 | return 0; | |
1018 | } | |
2c9839c1 | 1019 | |
ef56becb NA |
1020 | int bond_option_num_peer_notif_set(struct bonding *bond, |
1021 | struct bond_opt_value *newval) | |
2c9839c1 | 1022 | { |
ef56becb NA |
1023 | bond->params.num_peer_notif = newval->value; |
1024 | ||
2c9839c1 | 1025 | return 0; |
1026 | } | |
1cc0b1e3 | 1027 | |
1028 | int bond_option_all_slaves_active_set(struct bonding *bond, | |
1029 | int all_slaves_active) | |
1030 | { | |
1031 | struct list_head *iter; | |
1032 | struct slave *slave; | |
1033 | ||
1034 | if (all_slaves_active == bond->params.all_slaves_active) | |
1035 | return 0; | |
1036 | ||
1037 | if ((all_slaves_active == 0) || (all_slaves_active == 1)) { | |
1038 | bond->params.all_slaves_active = all_slaves_active; | |
1039 | } else { | |
1040 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1041 | bond->dev->name, all_slaves_active); | |
1042 | return -EINVAL; | |
1043 | } | |
1044 | ||
1045 | bond_for_each_slave(bond, slave, iter) { | |
1046 | if (!bond_is_active_slave(slave)) { | |
1047 | if (all_slaves_active) | |
1048 | slave->inactive = 0; | |
1049 | else | |
1050 | slave->inactive = 1; | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | return 0; | |
1055 | } | |
7d101008 | 1056 | |
633ddc9e NA |
1057 | int bond_option_min_links_set(struct bonding *bond, |
1058 | struct bond_opt_value *newval) | |
7d101008 | 1059 | { |
633ddc9e NA |
1060 | pr_info("%s: Setting min links value to %llu\n", |
1061 | bond->dev->name, newval->value); | |
1062 | bond->params.min_links = newval->value; | |
7d101008 | 1063 | |
1064 | return 0; | |
1065 | } | |
8d836d09 | 1066 | |
1067 | int bond_option_lp_interval_set(struct bonding *bond, int lp_interval) | |
1068 | { | |
1069 | if (lp_interval <= 0) { | |
1070 | pr_err("%s: lp_interval must be between 1 and %d\n", | |
1071 | bond->dev->name, INT_MAX); | |
1072 | return -EINVAL; | |
1073 | } | |
1074 | ||
1075 | bond->params.lp_interval = lp_interval; | |
1076 | ||
1077 | return 0; | |
1078 | } | |
c13ab3ff | 1079 | |
aa59d851 | 1080 | int bond_option_pps_set(struct bonding *bond, struct bond_opt_value *newval) |
c13ab3ff | 1081 | { |
aa59d851 NA |
1082 | bond->params.packets_per_slave = newval->value; |
1083 | if (newval->value > 0) { | |
809fa972 | 1084 | bond->params.reciprocal_packets_per_slave = |
aa59d851 | 1085 | reciprocal_value(newval->value); |
809fa972 HFS |
1086 | } else { |
1087 | /* reciprocal_packets_per_slave is unused if | |
1088 | * packets_per_slave is 0 or 1, just initialize it | |
1089 | */ | |
1090 | bond->params.reciprocal_packets_per_slave = | |
1091 | (struct reciprocal_value) { 0 }; | |
1092 | } | |
c13ab3ff | 1093 | |
1094 | return 0; | |
1095 | } | |
998e40bb | 1096 | |
d3131de7 NA |
1097 | int bond_option_lacp_rate_set(struct bonding *bond, |
1098 | struct bond_opt_value *newval) | |
998e40bb | 1099 | { |
d3131de7 NA |
1100 | pr_info("%s: Setting LACP rate to %s (%llu).\n", |
1101 | bond->dev->name, newval->string, newval->value); | |
1102 | bond->params.lacp_fast = newval->value; | |
3243c47b | 1103 | bond_3ad_update_lacp_rate(bond); |
998e40bb | 1104 | |
1105 | return 0; | |
1106 | } | |
ec029fac | 1107 | |
9e5f5eeb NA |
1108 | int bond_option_ad_select_set(struct bonding *bond, |
1109 | struct bond_opt_value *newval) | |
ec029fac | 1110 | { |
9e5f5eeb NA |
1111 | pr_info("%s: Setting ad_select to %s (%llu).\n", |
1112 | bond->dev->name, newval->string, newval->value); | |
1113 | bond->params.ad_select = newval->value; | |
ec029fac | 1114 | |
1115 | return 0; | |
1116 | } |