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> | |
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 | }, | |
d1fbd3ed NA |
247 | [BOND_OPT_ACTIVE_SLAVE] = { |
248 | .id = BOND_OPT_ACTIVE_SLAVE, | |
249 | .name = "active_slave", | |
250 | .desc = "Currently active slave", | |
251 | .flags = BOND_OPTFLAG_RAWVAL, | |
252 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | | |
253 | BIT(BOND_MODE_TLB) | | |
254 | BIT(BOND_MODE_ALB)), | |
255 | .set = bond_option_active_slave_set | |
256 | }, | |
24089ba1 NA |
257 | [BOND_OPT_QUEUE_ID] = { |
258 | .id = BOND_OPT_QUEUE_ID, | |
259 | .name = "queue_id", | |
260 | .desc = "Set queue id of a slave", | |
261 | .flags = BOND_OPTFLAG_RAWVAL, | |
262 | .set = bond_option_queue_id_set | |
263 | }, | |
09117362 NA |
264 | { } |
265 | }; | |
266 | ||
267 | /* Searches for a value in opt's values[] table */ | |
268 | struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val) | |
269 | { | |
270 | struct bond_option *opt; | |
271 | int i; | |
272 | ||
273 | opt = bond_opt_get(option); | |
274 | if (WARN_ON(!opt)) | |
275 | return NULL; | |
276 | for (i = 0; opt->values && opt->values[i].string; i++) | |
277 | if (opt->values[i].value == val) | |
278 | return &opt->values[i]; | |
279 | ||
280 | return NULL; | |
281 | } | |
282 | ||
283 | /* Searches for a value in opt's values[] table which matches the flagmask */ | |
284 | static struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt, | |
285 | u32 flagmask) | |
286 | { | |
287 | int i; | |
288 | ||
289 | for (i = 0; opt->values && opt->values[i].string; i++) | |
290 | if (opt->values[i].flags & flagmask) | |
291 | return &opt->values[i]; | |
292 | ||
293 | return NULL; | |
294 | } | |
295 | ||
296 | /* If maxval is missing then there's no range to check. In case minval is | |
297 | * missing then it's considered to be 0. | |
298 | */ | |
299 | static bool bond_opt_check_range(const struct bond_option *opt, u64 val) | |
300 | { | |
301 | struct bond_opt_value *minval, *maxval; | |
302 | ||
303 | minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN); | |
304 | maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX); | |
305 | if (!maxval || (minval && val < minval->value) || val > maxval->value) | |
306 | return false; | |
307 | ||
308 | return true; | |
309 | } | |
310 | ||
311 | /** | |
312 | * bond_opt_parse - parse option value | |
313 | * @opt: the option to parse against | |
314 | * @val: value to parse | |
315 | * | |
316 | * This function tries to extract the value from @val and check if it's | |
317 | * a possible match for the option and returns NULL if a match isn't found, | |
318 | * or the struct_opt_value that matched. It also strips the new line from | |
319 | * @val->string if it's present. | |
320 | */ | |
321 | struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, | |
322 | struct bond_opt_value *val) | |
323 | { | |
324 | char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, }; | |
325 | struct bond_opt_value *tbl, *ret = NULL; | |
326 | bool checkval; | |
327 | int i, rv; | |
328 | ||
329 | /* No parsing if the option wants a raw val */ | |
330 | if (opt->flags & BOND_OPTFLAG_RAWVAL) | |
331 | return val; | |
332 | ||
333 | tbl = opt->values; | |
334 | if (!tbl) | |
335 | goto out; | |
336 | ||
337 | /* ULLONG_MAX is used to bypass string processing */ | |
338 | checkval = val->value != ULLONG_MAX; | |
339 | if (!checkval) { | |
340 | if (!val->string) | |
341 | goto out; | |
342 | p = strchr(val->string, '\n'); | |
343 | if (p) | |
344 | *p = '\0'; | |
345 | for (p = val->string; *p; p++) | |
346 | if (!(isdigit(*p) || isspace(*p))) | |
347 | break; | |
348 | /* The following code extracts the string to match or the value | |
349 | * and sets checkval appropriately | |
350 | */ | |
351 | if (*p) { | |
352 | rv = sscanf(val->string, "%32s", valstr); | |
353 | } else { | |
354 | rv = sscanf(val->string, "%llu", &val->value); | |
355 | checkval = true; | |
356 | } | |
357 | if (!rv) | |
358 | goto out; | |
359 | } | |
360 | ||
361 | for (i = 0; tbl[i].string; i++) { | |
362 | /* Check for exact match */ | |
363 | if (checkval) { | |
364 | if (val->value == tbl[i].value) | |
365 | ret = &tbl[i]; | |
366 | } else { | |
367 | if (!strcmp(valstr, "default") && | |
368 | (tbl[i].flags & BOND_VALFLAG_DEFAULT)) | |
369 | ret = &tbl[i]; | |
370 | ||
371 | if (!strcmp(valstr, tbl[i].string)) | |
372 | ret = &tbl[i]; | |
373 | } | |
374 | /* Found an exact match */ | |
375 | if (ret) | |
376 | goto out; | |
377 | } | |
378 | /* Possible range match */ | |
379 | if (checkval && bond_opt_check_range(opt, val->value)) | |
380 | ret = val; | |
381 | out: | |
382 | return ret; | |
383 | } | |
384 | ||
385 | /* Check opt's dependencies against bond mode and currently set options */ | |
386 | static int bond_opt_check_deps(struct bonding *bond, | |
387 | const struct bond_option *opt) | |
388 | { | |
389 | struct bond_params *params = &bond->params; | |
390 | ||
391 | if (test_bit(params->mode, &opt->unsuppmodes)) | |
392 | return -EACCES; | |
393 | if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond)) | |
394 | return -ENOTEMPTY; | |
395 | if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP)) | |
396 | return -EBUSY; | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | static void bond_opt_dep_print(struct bonding *bond, | |
402 | const struct bond_option *opt) | |
403 | { | |
2b3798d5 | 404 | struct bond_opt_value *modeval; |
09117362 NA |
405 | struct bond_params *params; |
406 | ||
407 | params = &bond->params; | |
2b3798d5 | 408 | modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode); |
09117362 | 409 | if (test_bit(params->mode, &opt->unsuppmodes)) |
2b3798d5 NA |
410 | pr_err("%s: option %s: mode dependency failed, not supported in mode %s(%llu)\n", |
411 | bond->dev->name, opt->name, | |
412 | modeval->string, modeval->value); | |
09117362 NA |
413 | } |
414 | ||
415 | static void bond_opt_error_interpret(struct bonding *bond, | |
416 | const struct bond_option *opt, | |
417 | int error, struct bond_opt_value *val) | |
418 | { | |
419 | struct bond_opt_value *minval, *maxval; | |
420 | char *p; | |
421 | ||
422 | switch (error) { | |
423 | case -EINVAL: | |
424 | if (val) { | |
425 | if (val->string) { | |
426 | /* sometimes RAWVAL opts may have new lines */ | |
427 | p = strchr(val->string, '\n'); | |
428 | if (p) | |
429 | *p = '\0'; | |
430 | pr_err("%s: option %s: invalid value (%s).\n", | |
431 | bond->dev->name, opt->name, val->string); | |
432 | } else { | |
433 | pr_err("%s: option %s: invalid value (%llu).\n", | |
434 | bond->dev->name, opt->name, val->value); | |
435 | } | |
436 | } | |
437 | minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN); | |
438 | maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX); | |
439 | if (!maxval) | |
440 | break; | |
441 | pr_err("%s: option %s: allowed values %llu - %llu.\n", | |
442 | bond->dev->name, opt->name, minval ? minval->value : 0, | |
443 | maxval->value); | |
444 | break; | |
445 | case -EACCES: | |
446 | bond_opt_dep_print(bond, opt); | |
447 | break; | |
448 | case -ENOTEMPTY: | |
449 | pr_err("%s: option %s: unable to set because the bond device has slaves.\n", | |
450 | bond->dev->name, opt->name); | |
451 | break; | |
452 | case -EBUSY: | |
453 | pr_err("%s: option %s: unable to set because the bond device is up.\n", | |
454 | bond->dev->name, opt->name); | |
455 | break; | |
456 | default: | |
457 | break; | |
458 | } | |
459 | } | |
460 | ||
461 | /** | |
462 | * __bond_opt_set - set a bonding option | |
463 | * @bond: target bond device | |
464 | * @option: option to set | |
465 | * @val: value to set it to | |
466 | * | |
467 | * This function is used to change the bond's option value, it can be | |
468 | * used for both enabling/changing an option and for disabling it. RTNL lock | |
469 | * must be obtained before calling this function. | |
470 | */ | |
471 | int __bond_opt_set(struct bonding *bond, | |
472 | unsigned int option, struct bond_opt_value *val) | |
473 | { | |
474 | struct bond_opt_value *retval = NULL; | |
475 | const struct bond_option *opt; | |
476 | int ret = -ENOENT; | |
477 | ||
478 | ASSERT_RTNL(); | |
479 | ||
480 | opt = bond_opt_get(option); | |
481 | if (WARN_ON(!val) || WARN_ON(!opt)) | |
482 | goto out; | |
483 | ret = bond_opt_check_deps(bond, opt); | |
484 | if (ret) | |
485 | goto out; | |
486 | retval = bond_opt_parse(opt, val); | |
487 | if (!retval) { | |
488 | ret = -EINVAL; | |
489 | goto out; | |
490 | } | |
491 | ret = opt->set(bond, retval); | |
492 | out: | |
493 | if (ret) | |
494 | bond_opt_error_interpret(bond, opt, ret, val); | |
495 | ||
496 | return ret; | |
497 | } | |
498 | ||
499 | /** | |
500 | * bond_opt_tryset_rtnl - try to acquire rtnl and call __bond_opt_set | |
501 | * @bond: target bond device | |
502 | * @option: option to set | |
503 | * @buf: value to set it to | |
504 | * | |
505 | * This function tries to acquire RTNL without blocking and if successful | |
506 | * calls __bond_opt_set. It is mainly used for sysfs option manipulation. | |
507 | */ | |
508 | int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf) | |
509 | { | |
510 | struct bond_opt_value optval; | |
511 | int ret; | |
512 | ||
513 | if (!rtnl_trylock()) | |
514 | return restart_syscall(); | |
515 | bond_opt_initstr(&optval, buf); | |
516 | ret = __bond_opt_set(bond, option, &optval); | |
517 | rtnl_unlock(); | |
518 | ||
519 | return ret; | |
520 | } | |
521 | ||
522 | /** | |
523 | * bond_opt_get - get a pointer to an option | |
524 | * @option: option for which to return a pointer | |
525 | * | |
526 | * This function checks if option is valid and if so returns a pointer | |
527 | * to its entry in the bond_opts[] option array. | |
528 | */ | |
529 | struct bond_option *bond_opt_get(unsigned int option) | |
530 | { | |
531 | if (!BOND_OPT_VALID(option)) | |
532 | return NULL; | |
533 | ||
534 | return &bond_opts[option]; | |
535 | } | |
536 | ||
2b3798d5 | 537 | int bond_option_mode_set(struct bonding *bond, struct bond_opt_value *newval) |
72be35fe | 538 | { |
2b3798d5 | 539 | if (BOND_NO_USES_ARP(newval->value) && bond->params.arp_interval) { |
fe9d04af | 540 | pr_info("%s: %s mode is incompatible with arp monitoring, start mii monitoring\n", |
2b3798d5 | 541 | bond->dev->name, newval->string); |
fe9d04af | 542 | /* disable arp monitoring */ |
543 | bond->params.arp_interval = 0; | |
544 | /* set miimon to default value */ | |
545 | bond->params.miimon = BOND_DEFAULT_MIIMON; | |
546 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
547 | bond->dev->name, bond->params.miimon); | |
72be35fe JP |
548 | } |
549 | ||
550 | /* don't cache arp_validate between modes */ | |
551 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
2b3798d5 NA |
552 | bond->params.mode = newval->value; |
553 | ||
72be35fe JP |
554 | return 0; |
555 | } | |
d9e32b21 | 556 | |
752d48b5 JP |
557 | static struct net_device *__bond_option_active_slave_get(struct bonding *bond, |
558 | struct slave *slave) | |
559 | { | |
560 | return USES_PRIMARY(bond->params.mode) && slave ? slave->dev : NULL; | |
561 | } | |
562 | ||
563 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) | |
564 | { | |
565 | struct slave *slave = rcu_dereference(bond->curr_active_slave); | |
566 | ||
567 | return __bond_option_active_slave_get(bond, slave); | |
568 | } | |
569 | ||
570 | struct net_device *bond_option_active_slave_get(struct bonding *bond) | |
571 | { | |
572 | return __bond_option_active_slave_get(bond, bond->curr_active_slave); | |
573 | } | |
574 | ||
d9e32b21 | 575 | int bond_option_active_slave_set(struct bonding *bond, |
d1fbd3ed | 576 | struct bond_opt_value *newval) |
d9e32b21 | 577 | { |
d1fbd3ed NA |
578 | char ifname[IFNAMSIZ] = { 0, }; |
579 | struct net_device *slave_dev; | |
d9e32b21 JP |
580 | int ret = 0; |
581 | ||
d1fbd3ed NA |
582 | sscanf(newval->string, "%15s", ifname); /* IFNAMSIZ */ |
583 | if (!strlen(ifname) || newval->string[0] == '\n') { | |
584 | slave_dev = NULL; | |
585 | } else { | |
586 | slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
587 | if (!slave_dev) | |
588 | return -ENODEV; | |
589 | } | |
590 | ||
d9e32b21 JP |
591 | if (slave_dev) { |
592 | if (!netif_is_bond_slave(slave_dev)) { | |
593 | pr_err("Device %s is not bonding slave.\n", | |
594 | slave_dev->name); | |
595 | return -EINVAL; | |
596 | } | |
597 | ||
598 | if (bond->dev != netdev_master_upper_dev_get(slave_dev)) { | |
599 | pr_err("%s: Device %s is not our slave.\n", | |
600 | bond->dev->name, slave_dev->name); | |
601 | return -EINVAL; | |
602 | } | |
603 | } | |
604 | ||
d9e32b21 | 605 | block_netpoll_tx(); |
d9e32b21 JP |
606 | write_lock_bh(&bond->curr_slave_lock); |
607 | ||
608 | /* check to see if we are clearing active */ | |
609 | if (!slave_dev) { | |
610 | pr_info("%s: Clearing current active slave.\n", | |
611 | bond->dev->name); | |
612 | rcu_assign_pointer(bond->curr_active_slave, NULL); | |
613 | bond_select_active_slave(bond); | |
614 | } else { | |
615 | struct slave *old_active = bond->curr_active_slave; | |
616 | struct slave *new_active = bond_slave_get_rtnl(slave_dev); | |
617 | ||
618 | BUG_ON(!new_active); | |
619 | ||
620 | if (new_active == old_active) { | |
621 | /* do nothing */ | |
622 | pr_info("%s: %s is already the current active slave.\n", | |
623 | bond->dev->name, new_active->dev->name); | |
624 | } else { | |
625 | if (old_active && (new_active->link == BOND_LINK_UP) && | |
626 | IS_UP(new_active->dev)) { | |
627 | pr_info("%s: Setting %s as active slave.\n", | |
628 | bond->dev->name, new_active->dev->name); | |
629 | bond_change_active_slave(bond, new_active); | |
630 | } else { | |
631 | pr_err("%s: Could not set %s as active slave; either %s is down or the link is down.\n", | |
632 | bond->dev->name, new_active->dev->name, | |
633 | new_active->dev->name); | |
634 | ret = -EINVAL; | |
635 | } | |
636 | } | |
637 | } | |
638 | ||
639 | write_unlock_bh(&bond->curr_slave_lock); | |
d9e32b21 | 640 | unblock_netpoll_tx(); |
d1fbd3ed | 641 | |
d9e32b21 JP |
642 | return ret; |
643 | } | |
eecdaa6e | 644 | |
b98d9c66 | 645 | int bond_option_miimon_set(struct bonding *bond, struct bond_opt_value *newval) |
eecdaa6e | 646 | { |
b98d9c66 NA |
647 | pr_info("%s: Setting MII monitoring interval to %llu.\n", |
648 | bond->dev->name, newval->value); | |
649 | bond->params.miimon = newval->value; | |
eecdaa6e | 650 | if (bond->params.updelay) |
651 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
652 | bond->dev->name, | |
653 | bond->params.updelay * bond->params.miimon); | |
654 | if (bond->params.downdelay) | |
655 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
656 | bond->dev->name, | |
657 | bond->params.downdelay * bond->params.miimon); | |
b98d9c66 | 658 | if (newval->value && bond->params.arp_interval) { |
eecdaa6e | 659 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
660 | bond->dev->name); | |
661 | bond->params.arp_interval = 0; | |
662 | if (bond->params.arp_validate) | |
663 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
664 | } | |
665 | if (bond->dev->flags & IFF_UP) { | |
666 | /* If the interface is up, we may need to fire off | |
667 | * the MII timer. If the interface is down, the | |
668 | * timer will get fired off when the open function | |
669 | * is called. | |
670 | */ | |
b98d9c66 | 671 | if (!newval->value) { |
eecdaa6e | 672 | cancel_delayed_work_sync(&bond->mii_work); |
673 | } else { | |
674 | cancel_delayed_work_sync(&bond->arp_work); | |
675 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
676 | } | |
677 | } | |
b98d9c66 | 678 | |
eecdaa6e | 679 | return 0; |
680 | } | |
25852e29 | 681 | |
e4994612 | 682 | int bond_option_updelay_set(struct bonding *bond, struct bond_opt_value *newval) |
25852e29 | 683 | { |
e4994612 | 684 | if (!bond->params.miimon) { |
25852e29 | 685 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
686 | bond->dev->name); | |
687 | return -EPERM; | |
688 | } | |
e4994612 NA |
689 | if ((newval->value % bond->params.miimon) != 0) { |
690 | pr_warn("%s: Warning: up delay (%llu) is not a multiple of miimon (%d), updelay 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); | |
25852e29 | 695 | } |
e4994612 NA |
696 | bond->params.updelay = newval->value / bond->params.miimon; |
697 | pr_info("%s: Setting up delay to %d.\n", | |
698 | bond->dev->name, | |
699 | bond->params.updelay * bond->params.miimon); | |
25852e29 | 700 | |
701 | return 0; | |
702 | } | |
c7461f9b | 703 | |
25a9b54a NA |
704 | int bond_option_downdelay_set(struct bonding *bond, |
705 | struct bond_opt_value *newval) | |
c7461f9b | 706 | { |
25a9b54a | 707 | if (!bond->params.miimon) { |
c7461f9b | 708 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
709 | bond->dev->name); | |
710 | return -EPERM; | |
711 | } | |
25a9b54a NA |
712 | if ((newval->value % bond->params.miimon) != 0) { |
713 | pr_warn("%s: Warning: down delay (%llu) is not a multiple of miimon (%d), delay rounded to %llu ms\n", | |
714 | bond->dev->name, newval->value, | |
715 | bond->params.miimon, | |
716 | (newval->value / bond->params.miimon) * | |
717 | bond->params.miimon); | |
c7461f9b | 718 | } |
25a9b54a NA |
719 | bond->params.downdelay = newval->value / bond->params.miimon; |
720 | pr_info("%s: Setting down delay to %d.\n", | |
721 | bond->dev->name, | |
722 | bond->params.downdelay * bond->params.miimon); | |
c7461f9b | 723 | |
724 | return 0; | |
725 | } | |
9f53e14e | 726 | |
0fff0608 NA |
727 | int bond_option_use_carrier_set(struct bonding *bond, |
728 | struct bond_opt_value *newval) | |
9f53e14e | 729 | { |
0fff0608 NA |
730 | pr_info("%s: Setting use_carrier to %llu.\n", |
731 | bond->dev->name, newval->value); | |
732 | bond->params.use_carrier = newval->value; | |
9f53e14e | 733 | |
734 | return 0; | |
735 | } | |
06151dbc | 736 | |
7bdb04ed NA |
737 | int bond_option_arp_interval_set(struct bonding *bond, |
738 | struct bond_opt_value *newval) | |
06151dbc | 739 | { |
7bdb04ed NA |
740 | pr_info("%s: Setting ARP monitoring interval to %llu.\n", |
741 | bond->dev->name, newval->value); | |
742 | bond->params.arp_interval = newval->value; | |
743 | if (newval->value) { | |
06151dbc | 744 | if (bond->params.miimon) { |
745 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
746 | bond->dev->name, bond->dev->name); | |
747 | bond->params.miimon = 0; | |
748 | } | |
749 | if (!bond->params.arp_targets[0]) | |
750 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
751 | bond->dev->name); | |
752 | } | |
753 | if (bond->dev->flags & IFF_UP) { | |
754 | /* If the interface is up, we may need to fire off | |
755 | * the ARP timer. If the interface is down, the | |
756 | * timer will get fired off when the open function | |
757 | * is called. | |
758 | */ | |
7bdb04ed | 759 | if (!newval->value) { |
06151dbc | 760 | if (bond->params.arp_validate) |
761 | bond->recv_probe = NULL; | |
762 | cancel_delayed_work_sync(&bond->arp_work); | |
763 | } else { | |
764 | /* arp_validate can be set only in active-backup mode */ | |
765 | if (bond->params.arp_validate) | |
766 | bond->recv_probe = bond_arp_rcv; | |
767 | cancel_delayed_work_sync(&bond->mii_work); | |
768 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
769 | } | |
770 | } | |
771 | ||
772 | return 0; | |
773 | } | |
7f28fa10 | 774 | |
775 | static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot, | |
776 | __be32 target, | |
777 | unsigned long last_rx) | |
778 | { | |
779 | __be32 *targets = bond->params.arp_targets; | |
780 | struct list_head *iter; | |
781 | struct slave *slave; | |
782 | ||
783 | if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) { | |
784 | bond_for_each_slave(bond, slave, iter) | |
785 | slave->target_last_arp_rx[slot] = last_rx; | |
786 | targets[slot] = target; | |
787 | } | |
788 | } | |
789 | ||
790 | static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
791 | { | |
792 | __be32 *targets = bond->params.arp_targets; | |
793 | int ind; | |
794 | ||
795 | if (IS_IP_TARGET_UNUSABLE_ADDRESS(target)) { | |
796 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", | |
797 | bond->dev->name, &target); | |
798 | return -EINVAL; | |
799 | } | |
800 | ||
801 | if (bond_get_targets_ip(targets, target) != -1) { /* dup */ | |
802 | pr_err("%s: ARP target %pI4 is already present\n", | |
803 | bond->dev->name, &target); | |
804 | return -EINVAL; | |
805 | } | |
806 | ||
807 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ | |
808 | if (ind == -1) { | |
809 | pr_err("%s: ARP target table is full!\n", | |
810 | bond->dev->name); | |
811 | return -EINVAL; | |
812 | } | |
813 | ||
814 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, &target); | |
815 | ||
816 | _bond_options_arp_ip_target_set(bond, ind, target, jiffies); | |
817 | ||
818 | return 0; | |
819 | } | |
820 | ||
821 | int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
822 | { | |
823 | int ret; | |
824 | ||
825 | /* not to race with bond_arp_rcv */ | |
826 | write_lock_bh(&bond->lock); | |
827 | ret = _bond_option_arp_ip_target_add(bond, target); | |
828 | write_unlock_bh(&bond->lock); | |
829 | ||
830 | return ret; | |
831 | } | |
832 | ||
833 | int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target) | |
834 | { | |
835 | __be32 *targets = bond->params.arp_targets; | |
836 | struct list_head *iter; | |
837 | struct slave *slave; | |
838 | unsigned long *targets_rx; | |
839 | int ind, i; | |
840 | ||
841 | if (IS_IP_TARGET_UNUSABLE_ADDRESS(target)) { | |
842 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", | |
843 | bond->dev->name, &target); | |
844 | return -EINVAL; | |
845 | } | |
846 | ||
847 | ind = bond_get_targets_ip(targets, target); | |
848 | if (ind == -1) { | |
849 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
850 | bond->dev->name, &target); | |
851 | return -EINVAL; | |
852 | } | |
853 | ||
854 | if (ind == 0 && !targets[1] && bond->params.arp_interval) | |
855 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
856 | bond->dev->name); | |
857 | ||
858 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, | |
859 | &target); | |
860 | ||
861 | /* not to race with bond_arp_rcv */ | |
862 | write_lock_bh(&bond->lock); | |
863 | ||
864 | bond_for_each_slave(bond, slave, iter) { | |
865 | targets_rx = slave->target_last_arp_rx; | |
866 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
867 | targets_rx[i] = targets_rx[i+1]; | |
868 | targets_rx[i] = 0; | |
869 | } | |
870 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
871 | targets[i] = targets[i+1]; | |
872 | targets[i] = 0; | |
873 | ||
874 | write_unlock_bh(&bond->lock); | |
875 | ||
876 | return 0; | |
877 | } | |
878 | ||
4fb0ef58 | 879 | void bond_option_arp_ip_targets_clear(struct bonding *bond) |
7f28fa10 | 880 | { |
4fb0ef58 | 881 | int i; |
7f28fa10 | 882 | |
883 | /* not to race with bond_arp_rcv */ | |
884 | write_lock_bh(&bond->lock); | |
7f28fa10 | 885 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) |
886 | _bond_options_arp_ip_target_set(bond, i, 0, 0); | |
4fb0ef58 NA |
887 | write_unlock_bh(&bond->lock); |
888 | } | |
7f28fa10 | 889 | |
4fb0ef58 NA |
890 | int bond_option_arp_ip_targets_set(struct bonding *bond, |
891 | struct bond_opt_value *newval) | |
892 | { | |
893 | int ret = -EPERM; | |
894 | __be32 target; | |
895 | ||
896 | if (newval->string) { | |
897 | if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) { | |
898 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
899 | bond->dev->name, &target); | |
900 | return ret; | |
901 | } | |
902 | if (newval->string[0] == '+') | |
903 | ret = bond_option_arp_ip_target_add(bond, target); | |
904 | else if (newval->string[0] == '-') | |
905 | ret = bond_option_arp_ip_target_rem(bond, target); | |
906 | else | |
907 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", | |
908 | bond->dev->name); | |
909 | } else { | |
910 | target = newval->value; | |
911 | ret = bond_option_arp_ip_target_add(bond, target); | |
7f28fa10 | 912 | } |
913 | ||
7f28fa10 | 914 | return ret; |
915 | } | |
29c49482 | 916 | |
16228881 NA |
917 | int bond_option_arp_validate_set(struct bonding *bond, |
918 | struct bond_opt_value *newval) | |
29c49482 | 919 | { |
16228881 NA |
920 | pr_info("%s: setting arp_validate to %s (%llu).\n", |
921 | bond->dev->name, newval->string, newval->value); | |
29c49482 | 922 | |
923 | if (bond->dev->flags & IFF_UP) { | |
16228881 | 924 | if (!newval->value) |
29c49482 | 925 | bond->recv_probe = NULL; |
926 | else if (bond->params.arp_interval) | |
927 | bond->recv_probe = bond_arp_rcv; | |
928 | } | |
16228881 | 929 | bond->params.arp_validate = newval->value; |
29c49482 | 930 | |
931 | return 0; | |
932 | } | |
d5c84254 | 933 | |
edf36b24 NA |
934 | int bond_option_arp_all_targets_set(struct bonding *bond, |
935 | struct bond_opt_value *newval) | |
d5c84254 | 936 | { |
edf36b24 NA |
937 | pr_info("%s: setting arp_all_targets to %s (%llu).\n", |
938 | bond->dev->name, newval->string, newval->value); | |
939 | bond->params.arp_all_targets = newval->value; | |
d5c84254 | 940 | |
941 | return 0; | |
942 | } | |
0a98a0d1 | 943 | |
180222f0 | 944 | int bond_option_primary_set(struct bonding *bond, struct bond_opt_value *newval) |
0a98a0d1 | 945 | { |
180222f0 | 946 | char *p, *primary = newval->string; |
0a98a0d1 | 947 | struct list_head *iter; |
948 | struct slave *slave; | |
0a98a0d1 | 949 | |
950 | block_netpoll_tx(); | |
951 | read_lock(&bond->lock); | |
952 | write_lock_bh(&bond->curr_slave_lock); | |
953 | ||
180222f0 NA |
954 | p = strchr(primary, '\n'); |
955 | if (p) | |
956 | *p = '\0'; | |
0a98a0d1 | 957 | /* check to see if we are clearing primary */ |
958 | if (!strlen(primary)) { | |
959 | pr_info("%s: Setting primary slave to None.\n", | |
960 | bond->dev->name); | |
961 | bond->primary_slave = NULL; | |
962 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); | |
963 | bond_select_active_slave(bond); | |
964 | goto out; | |
965 | } | |
966 | ||
967 | bond_for_each_slave(bond, slave, iter) { | |
968 | if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) { | |
969 | pr_info("%s: Setting %s as primary slave.\n", | |
970 | bond->dev->name, slave->dev->name); | |
971 | bond->primary_slave = slave; | |
972 | strcpy(bond->params.primary, slave->dev->name); | |
973 | bond_select_active_slave(bond); | |
974 | goto out; | |
975 | } | |
976 | } | |
977 | ||
978 | strncpy(bond->params.primary, primary, IFNAMSIZ); | |
979 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
980 | ||
981 | pr_info("%s: Recording %s as primary, but it has not been enslaved to %s yet.\n", | |
982 | bond->dev->name, primary, bond->dev->name); | |
983 | ||
984 | out: | |
985 | write_unlock_bh(&bond->curr_slave_lock); | |
986 | read_unlock(&bond->lock); | |
987 | unblock_netpoll_tx(); | |
988 | ||
180222f0 | 989 | return 0; |
0a98a0d1 | 990 | } |
8a41ae44 | 991 | |
388d3a6d NA |
992 | int bond_option_primary_reselect_set(struct bonding *bond, |
993 | struct bond_opt_value *newval) | |
8a41ae44 | 994 | { |
388d3a6d NA |
995 | pr_info("%s: setting primary_reselect to %s (%llu).\n", |
996 | bond->dev->name, newval->string, newval->value); | |
997 | bond->params.primary_reselect = newval->value; | |
8a41ae44 | 998 | |
999 | block_netpoll_tx(); | |
1000 | write_lock_bh(&bond->curr_slave_lock); | |
1001 | bond_select_active_slave(bond); | |
1002 | write_unlock_bh(&bond->curr_slave_lock); | |
1003 | unblock_netpoll_tx(); | |
1004 | ||
1005 | return 0; | |
1006 | } | |
89901972 | 1007 | |
1df6b6aa NA |
1008 | int bond_option_fail_over_mac_set(struct bonding *bond, |
1009 | struct bond_opt_value *newval) | |
89901972 | 1010 | { |
1df6b6aa NA |
1011 | pr_info("%s: Setting fail_over_mac to %s (%llu).\n", |
1012 | bond->dev->name, newval->string, newval->value); | |
1013 | bond->params.fail_over_mac = newval->value; | |
89901972 | 1014 | |
1015 | return 0; | |
1016 | } | |
f70161c6 | 1017 | |
a4b32ce7 NA |
1018 | int bond_option_xmit_hash_policy_set(struct bonding *bond, |
1019 | struct bond_opt_value *newval) | |
f70161c6 | 1020 | { |
a4b32ce7 NA |
1021 | pr_info("%s: setting xmit hash policy to %s (%llu).\n", |
1022 | bond->dev->name, newval->string, newval->value); | |
1023 | bond->params.xmit_policy = newval->value; | |
f70161c6 | 1024 | |
1025 | return 0; | |
1026 | } | |
d8838de7 | 1027 | |
1028 | int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp) | |
1029 | { | |
1030 | if (resend_igmp < 0 || resend_igmp > 255) { | |
1031 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", | |
1032 | bond->dev->name, resend_igmp); | |
1033 | return -EINVAL; | |
1034 | } | |
1035 | ||
1036 | bond->params.resend_igmp = resend_igmp; | |
1037 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1038 | bond->dev->name, resend_igmp); | |
1039 | ||
1040 | return 0; | |
1041 | } | |
2c9839c1 | 1042 | |
ef56becb NA |
1043 | int bond_option_num_peer_notif_set(struct bonding *bond, |
1044 | struct bond_opt_value *newval) | |
2c9839c1 | 1045 | { |
ef56becb NA |
1046 | bond->params.num_peer_notif = newval->value; |
1047 | ||
2c9839c1 | 1048 | return 0; |
1049 | } | |
1cc0b1e3 | 1050 | |
1051 | int bond_option_all_slaves_active_set(struct bonding *bond, | |
1052 | int all_slaves_active) | |
1053 | { | |
1054 | struct list_head *iter; | |
1055 | struct slave *slave; | |
1056 | ||
1057 | if (all_slaves_active == bond->params.all_slaves_active) | |
1058 | return 0; | |
1059 | ||
1060 | if ((all_slaves_active == 0) || (all_slaves_active == 1)) { | |
1061 | bond->params.all_slaves_active = all_slaves_active; | |
1062 | } else { | |
1063 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1064 | bond->dev->name, all_slaves_active); | |
1065 | return -EINVAL; | |
1066 | } | |
1067 | ||
1068 | bond_for_each_slave(bond, slave, iter) { | |
1069 | if (!bond_is_active_slave(slave)) { | |
1070 | if (all_slaves_active) | |
1071 | slave->inactive = 0; | |
1072 | else | |
1073 | slave->inactive = 1; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | return 0; | |
1078 | } | |
7d101008 | 1079 | |
633ddc9e NA |
1080 | int bond_option_min_links_set(struct bonding *bond, |
1081 | struct bond_opt_value *newval) | |
7d101008 | 1082 | { |
633ddc9e NA |
1083 | pr_info("%s: Setting min links value to %llu\n", |
1084 | bond->dev->name, newval->value); | |
1085 | bond->params.min_links = newval->value; | |
7d101008 | 1086 | |
1087 | return 0; | |
1088 | } | |
8d836d09 | 1089 | |
1090 | int bond_option_lp_interval_set(struct bonding *bond, int lp_interval) | |
1091 | { | |
1092 | if (lp_interval <= 0) { | |
1093 | pr_err("%s: lp_interval must be between 1 and %d\n", | |
1094 | bond->dev->name, INT_MAX); | |
1095 | return -EINVAL; | |
1096 | } | |
1097 | ||
1098 | bond->params.lp_interval = lp_interval; | |
1099 | ||
1100 | return 0; | |
1101 | } | |
c13ab3ff | 1102 | |
aa59d851 | 1103 | int bond_option_pps_set(struct bonding *bond, struct bond_opt_value *newval) |
c13ab3ff | 1104 | { |
aa59d851 NA |
1105 | bond->params.packets_per_slave = newval->value; |
1106 | if (newval->value > 0) { | |
809fa972 | 1107 | bond->params.reciprocal_packets_per_slave = |
aa59d851 | 1108 | reciprocal_value(newval->value); |
809fa972 HFS |
1109 | } else { |
1110 | /* reciprocal_packets_per_slave is unused if | |
1111 | * packets_per_slave is 0 or 1, just initialize it | |
1112 | */ | |
1113 | bond->params.reciprocal_packets_per_slave = | |
1114 | (struct reciprocal_value) { 0 }; | |
1115 | } | |
c13ab3ff | 1116 | |
1117 | return 0; | |
1118 | } | |
998e40bb | 1119 | |
d3131de7 NA |
1120 | int bond_option_lacp_rate_set(struct bonding *bond, |
1121 | struct bond_opt_value *newval) | |
998e40bb | 1122 | { |
d3131de7 NA |
1123 | pr_info("%s: Setting LACP rate to %s (%llu).\n", |
1124 | bond->dev->name, newval->string, newval->value); | |
1125 | bond->params.lacp_fast = newval->value; | |
3243c47b | 1126 | bond_3ad_update_lacp_rate(bond); |
998e40bb | 1127 | |
1128 | return 0; | |
1129 | } | |
ec029fac | 1130 | |
9e5f5eeb NA |
1131 | int bond_option_ad_select_set(struct bonding *bond, |
1132 | struct bond_opt_value *newval) | |
ec029fac | 1133 | { |
9e5f5eeb NA |
1134 | pr_info("%s: Setting ad_select to %s (%llu).\n", |
1135 | bond->dev->name, newval->string, newval->value); | |
1136 | bond->params.ad_select = newval->value; | |
ec029fac | 1137 | |
1138 | return 0; | |
1139 | } | |
24089ba1 NA |
1140 | |
1141 | int bond_option_queue_id_set(struct bonding *bond, | |
1142 | struct bond_opt_value *newval) | |
1143 | { | |
1144 | struct slave *slave, *update_slave; | |
1145 | struct net_device *sdev; | |
1146 | struct list_head *iter; | |
1147 | char *delim; | |
1148 | int ret = 0; | |
1149 | u16 qid; | |
1150 | ||
1151 | /* delim will point to queue id if successful */ | |
1152 | delim = strchr(newval->string, ':'); | |
1153 | if (!delim) | |
1154 | goto err_no_cmd; | |
1155 | ||
1156 | /* Terminate string that points to device name and bump it | |
1157 | * up one, so we can read the queue id there. | |
1158 | */ | |
1159 | *delim = '\0'; | |
1160 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1161 | goto err_no_cmd; | |
1162 | ||
1163 | /* Check buffer length, valid ifname and queue id */ | |
1164 | if (strlen(newval->string) > IFNAMSIZ || | |
1165 | !dev_valid_name(newval->string) || | |
1166 | qid > bond->dev->real_num_tx_queues) | |
1167 | goto err_no_cmd; | |
1168 | ||
1169 | /* Get the pointer to that interface if it exists */ | |
1170 | sdev = __dev_get_by_name(dev_net(bond->dev), newval->string); | |
1171 | if (!sdev) | |
1172 | goto err_no_cmd; | |
1173 | ||
1174 | /* Search for thes slave and check for duplicate qids */ | |
1175 | update_slave = NULL; | |
1176 | bond_for_each_slave(bond, slave, iter) { | |
1177 | if (sdev == slave->dev) | |
1178 | /* We don't need to check the matching | |
1179 | * slave for dups, since we're overwriting it | |
1180 | */ | |
1181 | update_slave = slave; | |
1182 | else if (qid && qid == slave->queue_id) { | |
1183 | goto err_no_cmd; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | if (!update_slave) | |
1188 | goto err_no_cmd; | |
1189 | ||
1190 | /* Actually set the qids for the slave */ | |
1191 | update_slave->queue_id = qid; | |
1192 | ||
1193 | out: | |
1194 | return ret; | |
1195 | ||
1196 | err_no_cmd: | |
1197 | pr_info("invalid input for queue_id set for %s.\n", | |
1198 | bond->dev->name); | |
1199 | ret = -EPERM; | |
1200 | goto out; | |
1201 | ||
1202 | } |