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 | ||
72be35fe JP |
12 | #include <linux/errno.h> |
13 | #include <linux/if.h> | |
d9e32b21 | 14 | #include <linux/netdevice.h> |
eb2d4c64 | 15 | #include <linux/spinlock.h> |
d9e32b21 | 16 | #include <linux/rcupdate.h> |
09117362 | 17 | #include <linux/ctype.h> |
4fb0ef58 | 18 | #include <linux/inet.h> |
1ef8019b | 19 | #include <net/bonding.h> |
72be35fe | 20 | |
f3253339 | 21 | static int bond_option_active_slave_set(struct bonding *bond, |
28f084cc | 22 | const struct bond_opt_value *newval); |
f3253339 | 23 | static int bond_option_miimon_set(struct bonding *bond, |
28f084cc | 24 | const struct bond_opt_value *newval); |
f3253339 | 25 | static int bond_option_updelay_set(struct bonding *bond, |
28f084cc | 26 | const struct bond_opt_value *newval); |
f3253339 | 27 | static int bond_option_downdelay_set(struct bonding *bond, |
28f084cc | 28 | const struct bond_opt_value *newval); |
f3253339 | 29 | static int bond_option_use_carrier_set(struct bonding *bond, |
28f084cc | 30 | const struct bond_opt_value *newval); |
f3253339 | 31 | static int bond_option_arp_interval_set(struct bonding *bond, |
28f084cc | 32 | const struct bond_opt_value *newval); |
f3253339 | 33 | static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target); |
34 | static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target); | |
35 | static int bond_option_arp_ip_targets_set(struct bonding *bond, | |
28f084cc | 36 | const struct bond_opt_value *newval); |
f3253339 | 37 | static int bond_option_arp_validate_set(struct bonding *bond, |
28f084cc | 38 | const struct bond_opt_value *newval); |
f3253339 | 39 | static int bond_option_arp_all_targets_set(struct bonding *bond, |
28f084cc | 40 | const struct bond_opt_value *newval); |
f3253339 | 41 | static int bond_option_primary_set(struct bonding *bond, |
28f084cc | 42 | const struct bond_opt_value *newval); |
f3253339 | 43 | static int bond_option_primary_reselect_set(struct bonding *bond, |
28f084cc | 44 | const struct bond_opt_value *newval); |
f3253339 | 45 | static int bond_option_fail_over_mac_set(struct bonding *bond, |
28f084cc | 46 | const struct bond_opt_value *newval); |
f3253339 | 47 | static int bond_option_xmit_hash_policy_set(struct bonding *bond, |
28f084cc | 48 | const struct bond_opt_value *newval); |
f3253339 | 49 | static int bond_option_resend_igmp_set(struct bonding *bond, |
28f084cc | 50 | const struct bond_opt_value *newval); |
f3253339 | 51 | static int bond_option_num_peer_notif_set(struct bonding *bond, |
28f084cc | 52 | const struct bond_opt_value *newval); |
f3253339 | 53 | static int bond_option_all_slaves_active_set(struct bonding *bond, |
28f084cc | 54 | const struct bond_opt_value *newval); |
f3253339 | 55 | static int bond_option_min_links_set(struct bonding *bond, |
28f084cc | 56 | const struct bond_opt_value *newval); |
f3253339 | 57 | static int bond_option_lp_interval_set(struct bonding *bond, |
28f084cc | 58 | const struct bond_opt_value *newval); |
f3253339 | 59 | static int bond_option_pps_set(struct bonding *bond, |
28f084cc | 60 | const struct bond_opt_value *newval); |
f3253339 | 61 | static int bond_option_lacp_rate_set(struct bonding *bond, |
28f084cc | 62 | const struct bond_opt_value *newval); |
f3253339 | 63 | static int bond_option_ad_select_set(struct bonding *bond, |
28f084cc | 64 | const struct bond_opt_value *newval); |
f3253339 | 65 | static int bond_option_queue_id_set(struct bonding *bond, |
28f084cc | 66 | const struct bond_opt_value *newval); |
f3253339 | 67 | static int bond_option_mode_set(struct bonding *bond, |
28f084cc | 68 | const struct bond_opt_value *newval); |
f3253339 | 69 | static int bond_option_slaves_set(struct bonding *bond, |
28f084cc | 70 | const struct bond_opt_value *newval); |
e9f0fb88 MB |
71 | static int bond_option_tlb_dynamic_lb_set(struct bonding *bond, |
72 | const struct bond_opt_value *newval); | |
f3253339 | 73 | |
74 | ||
75 | static const struct bond_opt_value bond_mode_tbl[] = { | |
2b3798d5 NA |
76 | { "balance-rr", BOND_MODE_ROUNDROBIN, BOND_VALFLAG_DEFAULT}, |
77 | { "active-backup", BOND_MODE_ACTIVEBACKUP, 0}, | |
78 | { "balance-xor", BOND_MODE_XOR, 0}, | |
79 | { "broadcast", BOND_MODE_BROADCAST, 0}, | |
80 | { "802.3ad", BOND_MODE_8023AD, 0}, | |
81 | { "balance-tlb", BOND_MODE_TLB, 0}, | |
82 | { "balance-alb", BOND_MODE_ALB, 0}, | |
83 | { NULL, -1, 0}, | |
84 | }; | |
85 | ||
f3253339 | 86 | static const struct bond_opt_value bond_pps_tbl[] = { |
aa59d851 NA |
87 | { "default", 1, BOND_VALFLAG_DEFAULT}, |
88 | { "maxval", USHRT_MAX, BOND_VALFLAG_MAX}, | |
89 | { NULL, -1, 0}, | |
90 | }; | |
91 | ||
f3253339 | 92 | static const struct bond_opt_value bond_xmit_hashtype_tbl[] = { |
a4b32ce7 NA |
93 | { "layer2", BOND_XMIT_POLICY_LAYER2, BOND_VALFLAG_DEFAULT}, |
94 | { "layer3+4", BOND_XMIT_POLICY_LAYER34, 0}, | |
95 | { "layer2+3", BOND_XMIT_POLICY_LAYER23, 0}, | |
96 | { "encap2+3", BOND_XMIT_POLICY_ENCAP23, 0}, | |
97 | { "encap3+4", BOND_XMIT_POLICY_ENCAP34, 0}, | |
98 | { NULL, -1, 0}, | |
99 | }; | |
100 | ||
f3253339 | 101 | static const struct bond_opt_value bond_arp_validate_tbl[] = { |
896149ff VF |
102 | { "none", BOND_ARP_VALIDATE_NONE, BOND_VALFLAG_DEFAULT}, |
103 | { "active", BOND_ARP_VALIDATE_ACTIVE, 0}, | |
104 | { "backup", BOND_ARP_VALIDATE_BACKUP, 0}, | |
105 | { "all", BOND_ARP_VALIDATE_ALL, 0}, | |
106 | { "filter", BOND_ARP_FILTER, 0}, | |
107 | { "filter_active", BOND_ARP_FILTER_ACTIVE, 0}, | |
108 | { "filter_backup", BOND_ARP_FILTER_BACKUP, 0}, | |
109 | { NULL, -1, 0}, | |
16228881 NA |
110 | }; |
111 | ||
f3253339 | 112 | static const struct bond_opt_value bond_arp_all_targets_tbl[] = { |
edf36b24 NA |
113 | { "any", BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT}, |
114 | { "all", BOND_ARP_TARGETS_ALL, 0}, | |
115 | { NULL, -1, 0}, | |
116 | }; | |
117 | ||
f3253339 | 118 | static const struct bond_opt_value bond_fail_over_mac_tbl[] = { |
1df6b6aa NA |
119 | { "none", BOND_FOM_NONE, BOND_VALFLAG_DEFAULT}, |
120 | { "active", BOND_FOM_ACTIVE, 0}, | |
121 | { "follow", BOND_FOM_FOLLOW, 0}, | |
122 | { NULL, -1, 0}, | |
123 | }; | |
124 | ||
f3253339 | 125 | static const struct bond_opt_value bond_intmax_tbl[] = { |
7bdb04ed NA |
126 | { "off", 0, BOND_VALFLAG_DEFAULT}, |
127 | { "maxval", INT_MAX, BOND_VALFLAG_MAX}, | |
81c70806 | 128 | { NULL, -1, 0} |
7bdb04ed NA |
129 | }; |
130 | ||
f3253339 | 131 | static const struct bond_opt_value bond_lacp_rate_tbl[] = { |
d3131de7 NA |
132 | { "slow", AD_LACP_SLOW, 0}, |
133 | { "fast", AD_LACP_FAST, 0}, | |
134 | { NULL, -1, 0}, | |
135 | }; | |
136 | ||
f3253339 | 137 | static const struct bond_opt_value bond_ad_select_tbl[] = { |
9e5f5eeb NA |
138 | { "stable", BOND_AD_STABLE, BOND_VALFLAG_DEFAULT}, |
139 | { "bandwidth", BOND_AD_BANDWIDTH, 0}, | |
140 | { "count", BOND_AD_COUNT, 0}, | |
141 | { NULL, -1, 0}, | |
142 | }; | |
143 | ||
f3253339 | 144 | static const struct bond_opt_value bond_num_peer_notif_tbl[] = { |
ef56becb NA |
145 | { "off", 0, 0}, |
146 | { "maxval", 255, BOND_VALFLAG_MAX}, | |
147 | { "default", 1, BOND_VALFLAG_DEFAULT}, | |
148 | { NULL, -1, 0} | |
149 | }; | |
150 | ||
f3253339 | 151 | static const struct bond_opt_value bond_primary_reselect_tbl[] = { |
388d3a6d NA |
152 | { "always", BOND_PRI_RESELECT_ALWAYS, BOND_VALFLAG_DEFAULT}, |
153 | { "better", BOND_PRI_RESELECT_BETTER, 0}, | |
154 | { "failure", BOND_PRI_RESELECT_FAILURE, 0}, | |
155 | { NULL, -1}, | |
156 | }; | |
157 | ||
f3253339 | 158 | static const struct bond_opt_value bond_use_carrier_tbl[] = { |
0fff0608 NA |
159 | { "off", 0, 0}, |
160 | { "on", 1, BOND_VALFLAG_DEFAULT}, | |
161 | { NULL, -1, 0} | |
162 | }; | |
163 | ||
f3253339 | 164 | static const struct bond_opt_value bond_all_slaves_active_tbl[] = { |
3df01162 NA |
165 | { "off", 0, BOND_VALFLAG_DEFAULT}, |
166 | { "on", 1, 0}, | |
167 | { NULL, -1, 0} | |
168 | }; | |
169 | ||
f3253339 | 170 | static const struct bond_opt_value bond_resend_igmp_tbl[] = { |
105c8fb6 NA |
171 | { "off", 0, 0}, |
172 | { "maxval", 255, BOND_VALFLAG_MAX}, | |
173 | { "default", 1, BOND_VALFLAG_DEFAULT}, | |
174 | { NULL, -1, 0} | |
175 | }; | |
176 | ||
f3253339 | 177 | static const struct bond_opt_value bond_lp_interval_tbl[] = { |
4325b374 NA |
178 | { "minval", 1, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT}, |
179 | { "maxval", INT_MAX, BOND_VALFLAG_MAX}, | |
5bd4e4c1 | 180 | { NULL, -1, 0}, |
4325b374 NA |
181 | }; |
182 | ||
e9f0fb88 MB |
183 | static const struct bond_opt_value bond_tlb_dynamic_lb_tbl[] = { |
184 | { "off", 0, 0}, | |
185 | { "on", 1, BOND_VALFLAG_DEFAULT}, | |
186 | { NULL, -1, 0} | |
187 | }; | |
188 | ||
7bfa0145 | 189 | static const struct bond_option bond_opts[BOND_OPT_LAST] = { |
2b3798d5 NA |
190 | [BOND_OPT_MODE] = { |
191 | .id = BOND_OPT_MODE, | |
192 | .name = "mode", | |
193 | .desc = "bond device mode", | |
194 | .flags = BOND_OPTFLAG_NOSLAVES | BOND_OPTFLAG_IFDOWN, | |
195 | .values = bond_mode_tbl, | |
196 | .set = bond_option_mode_set | |
197 | }, | |
aa59d851 NA |
198 | [BOND_OPT_PACKETS_PER_SLAVE] = { |
199 | .id = BOND_OPT_PACKETS_PER_SLAVE, | |
200 | .name = "packets_per_slave", | |
201 | .desc = "Packets to send per slave in RR mode", | |
202 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ROUNDROBIN)), | |
203 | .values = bond_pps_tbl, | |
204 | .set = bond_option_pps_set | |
205 | }, | |
a4b32ce7 NA |
206 | [BOND_OPT_XMIT_HASH] = { |
207 | .id = BOND_OPT_XMIT_HASH, | |
208 | .name = "xmit_hash_policy", | |
f05b42ea | 209 | .desc = "balance-xor, 802.3ad, and tlb hashing method", |
a4b32ce7 NA |
210 | .values = bond_xmit_hashtype_tbl, |
211 | .set = bond_option_xmit_hash_policy_set | |
212 | }, | |
16228881 NA |
213 | [BOND_OPT_ARP_VALIDATE] = { |
214 | .id = BOND_OPT_ARP_VALIDATE, | |
215 | .name = "arp_validate", | |
216 | .desc = "validate src/dst of ARP probes", | |
13ac34a8 VF |
217 | .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) | |
218 | BIT(BOND_MODE_ALB), | |
16228881 NA |
219 | .values = bond_arp_validate_tbl, |
220 | .set = bond_option_arp_validate_set | |
221 | }, | |
edf36b24 NA |
222 | [BOND_OPT_ARP_ALL_TARGETS] = { |
223 | .id = BOND_OPT_ARP_ALL_TARGETS, | |
224 | .name = "arp_all_targets", | |
225 | .desc = "fail on any/all arp targets timeout", | |
226 | .values = bond_arp_all_targets_tbl, | |
227 | .set = bond_option_arp_all_targets_set | |
228 | }, | |
1df6b6aa NA |
229 | [BOND_OPT_FAIL_OVER_MAC] = { |
230 | .id = BOND_OPT_FAIL_OVER_MAC, | |
231 | .name = "fail_over_mac", | |
232 | .desc = "For active-backup, do not set all slaves to the same MAC", | |
233 | .flags = BOND_OPTFLAG_NOSLAVES, | |
234 | .values = bond_fail_over_mac_tbl, | |
235 | .set = bond_option_fail_over_mac_set | |
236 | }, | |
7bdb04ed NA |
237 | [BOND_OPT_ARP_INTERVAL] = { |
238 | .id = BOND_OPT_ARP_INTERVAL, | |
239 | .name = "arp_interval", | |
240 | .desc = "arp interval in milliseconds", | |
241 | .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) | | |
242 | BIT(BOND_MODE_ALB), | |
243 | .values = bond_intmax_tbl, | |
244 | .set = bond_option_arp_interval_set | |
245 | }, | |
4fb0ef58 NA |
246 | [BOND_OPT_ARP_TARGETS] = { |
247 | .id = BOND_OPT_ARP_TARGETS, | |
248 | .name = "arp_ip_target", | |
249 | .desc = "arp targets in n.n.n.n form", | |
250 | .flags = BOND_OPTFLAG_RAWVAL, | |
251 | .set = bond_option_arp_ip_targets_set | |
252 | }, | |
25a9b54a NA |
253 | [BOND_OPT_DOWNDELAY] = { |
254 | .id = BOND_OPT_DOWNDELAY, | |
255 | .name = "downdelay", | |
256 | .desc = "Delay before considering link down, in milliseconds", | |
257 | .values = bond_intmax_tbl, | |
258 | .set = bond_option_downdelay_set | |
259 | }, | |
e4994612 NA |
260 | [BOND_OPT_UPDELAY] = { |
261 | .id = BOND_OPT_UPDELAY, | |
262 | .name = "updelay", | |
263 | .desc = "Delay before considering link up, in milliseconds", | |
264 | .values = bond_intmax_tbl, | |
265 | .set = bond_option_updelay_set | |
266 | }, | |
d3131de7 NA |
267 | [BOND_OPT_LACP_RATE] = { |
268 | .id = BOND_OPT_LACP_RATE, | |
269 | .name = "lacp_rate", | |
270 | .desc = "LACPDU tx rate to request from 802.3ad partner", | |
271 | .flags = BOND_OPTFLAG_IFDOWN, | |
272 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), | |
273 | .values = bond_lacp_rate_tbl, | |
274 | .set = bond_option_lacp_rate_set | |
275 | }, | |
633ddc9e NA |
276 | [BOND_OPT_MINLINKS] = { |
277 | .id = BOND_OPT_MINLINKS, | |
278 | .name = "min_links", | |
279 | .desc = "Minimum number of available links before turning on carrier", | |
280 | .values = bond_intmax_tbl, | |
281 | .set = bond_option_min_links_set | |
282 | }, | |
9e5f5eeb NA |
283 | [BOND_OPT_AD_SELECT] = { |
284 | .id = BOND_OPT_AD_SELECT, | |
285 | .name = "ad_select", | |
286 | .desc = "803.ad aggregation selection logic", | |
287 | .flags = BOND_OPTFLAG_IFDOWN, | |
288 | .values = bond_ad_select_tbl, | |
289 | .set = bond_option_ad_select_set | |
290 | }, | |
ef56becb NA |
291 | [BOND_OPT_NUM_PEER_NOTIF] = { |
292 | .id = BOND_OPT_NUM_PEER_NOTIF, | |
293 | .name = "num_unsol_na", | |
294 | .desc = "Number of peer notifications to send on failover event", | |
295 | .values = bond_num_peer_notif_tbl, | |
296 | .set = bond_option_num_peer_notif_set | |
297 | }, | |
b98d9c66 NA |
298 | [BOND_OPT_MIIMON] = { |
299 | .id = BOND_OPT_MIIMON, | |
300 | .name = "miimon", | |
301 | .desc = "Link check interval in milliseconds", | |
302 | .values = bond_intmax_tbl, | |
303 | .set = bond_option_miimon_set | |
304 | }, | |
180222f0 NA |
305 | [BOND_OPT_PRIMARY] = { |
306 | .id = BOND_OPT_PRIMARY, | |
307 | .name = "primary", | |
308 | .desc = "Primary network device to use", | |
309 | .flags = BOND_OPTFLAG_RAWVAL, | |
310 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | | |
311 | BIT(BOND_MODE_TLB) | | |
312 | BIT(BOND_MODE_ALB)), | |
313 | .set = bond_option_primary_set | |
314 | }, | |
388d3a6d NA |
315 | [BOND_OPT_PRIMARY_RESELECT] = { |
316 | .id = BOND_OPT_PRIMARY_RESELECT, | |
317 | .name = "primary_reselect", | |
318 | .desc = "Reselect primary slave once it comes up", | |
319 | .values = bond_primary_reselect_tbl, | |
320 | .set = bond_option_primary_reselect_set | |
321 | }, | |
0fff0608 NA |
322 | [BOND_OPT_USE_CARRIER] = { |
323 | .id = BOND_OPT_USE_CARRIER, | |
324 | .name = "use_carrier", | |
325 | .desc = "Use netif_carrier_ok (vs MII ioctls) in miimon", | |
326 | .values = bond_use_carrier_tbl, | |
327 | .set = bond_option_use_carrier_set | |
328 | }, | |
d1fbd3ed NA |
329 | [BOND_OPT_ACTIVE_SLAVE] = { |
330 | .id = BOND_OPT_ACTIVE_SLAVE, | |
331 | .name = "active_slave", | |
332 | .desc = "Currently active slave", | |
333 | .flags = BOND_OPTFLAG_RAWVAL, | |
334 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | | |
335 | BIT(BOND_MODE_TLB) | | |
336 | BIT(BOND_MODE_ALB)), | |
337 | .set = bond_option_active_slave_set | |
338 | }, | |
24089ba1 NA |
339 | [BOND_OPT_QUEUE_ID] = { |
340 | .id = BOND_OPT_QUEUE_ID, | |
341 | .name = "queue_id", | |
342 | .desc = "Set queue id of a slave", | |
343 | .flags = BOND_OPTFLAG_RAWVAL, | |
344 | .set = bond_option_queue_id_set | |
345 | }, | |
3df01162 NA |
346 | [BOND_OPT_ALL_SLAVES_ACTIVE] = { |
347 | .id = BOND_OPT_ALL_SLAVES_ACTIVE, | |
348 | .name = "all_slaves_active", | |
349 | .desc = "Keep all frames received on an interface by setting active flag for all slaves", | |
350 | .values = bond_all_slaves_active_tbl, | |
351 | .set = bond_option_all_slaves_active_set | |
352 | }, | |
105c8fb6 NA |
353 | [BOND_OPT_RESEND_IGMP] = { |
354 | .id = BOND_OPT_RESEND_IGMP, | |
355 | .name = "resend_igmp", | |
356 | .desc = "Number of IGMP membership reports to send on link failure", | |
357 | .values = bond_resend_igmp_tbl, | |
358 | .set = bond_option_resend_igmp_set | |
359 | }, | |
4325b374 NA |
360 | [BOND_OPT_LP_INTERVAL] = { |
361 | .id = BOND_OPT_LP_INTERVAL, | |
362 | .name = "lp_interval", | |
363 | .desc = "The number of seconds between instances where the bonding driver sends learning packets to each slave's peer switch", | |
364 | .values = bond_lp_interval_tbl, | |
365 | .set = bond_option_lp_interval_set | |
366 | }, | |
0e2e5b66 NA |
367 | [BOND_OPT_SLAVES] = { |
368 | .id = BOND_OPT_SLAVES, | |
369 | .name = "slaves", | |
370 | .desc = "Slave membership management", | |
371 | .flags = BOND_OPTFLAG_RAWVAL, | |
372 | .set = bond_option_slaves_set | |
373 | }, | |
e9f0fb88 MB |
374 | [BOND_OPT_TLB_DYNAMIC_LB] = { |
375 | .id = BOND_OPT_TLB_DYNAMIC_LB, | |
dc3e5d18 | 376 | .name = "tlb_dynamic_lb", |
e9f0fb88 MB |
377 | .desc = "Enable dynamic flow shuffling", |
378 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_TLB)), | |
379 | .values = bond_tlb_dynamic_lb_tbl, | |
380 | .flags = BOND_OPTFLAG_IFDOWN, | |
381 | .set = bond_option_tlb_dynamic_lb_set, | |
7bfa0145 | 382 | } |
09117362 NA |
383 | }; |
384 | ||
dc3e5d18 NA |
385 | /* Searches for an option by name */ |
386 | const struct bond_option *bond_opt_get_by_name(const char *name) | |
387 | { | |
388 | const struct bond_option *opt; | |
389 | int option; | |
390 | ||
391 | for (option = 0; option < BOND_OPT_LAST; option++) { | |
392 | opt = bond_opt_get(option); | |
393 | if (opt && !strcmp(opt->name, name)) | |
394 | return opt; | |
395 | } | |
396 | ||
397 | return NULL; | |
398 | } | |
399 | ||
09117362 | 400 | /* Searches for a value in opt's values[] table */ |
f3253339 | 401 | const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val) |
09117362 | 402 | { |
f3253339 | 403 | const struct bond_option *opt; |
09117362 NA |
404 | int i; |
405 | ||
406 | opt = bond_opt_get(option); | |
407 | if (WARN_ON(!opt)) | |
408 | return NULL; | |
409 | for (i = 0; opt->values && opt->values[i].string; i++) | |
410 | if (opt->values[i].value == val) | |
411 | return &opt->values[i]; | |
412 | ||
413 | return NULL; | |
414 | } | |
415 | ||
416 | /* Searches for a value in opt's values[] table which matches the flagmask */ | |
f3253339 | 417 | static const struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt, |
09117362 NA |
418 | u32 flagmask) |
419 | { | |
420 | int i; | |
421 | ||
422 | for (i = 0; opt->values && opt->values[i].string; i++) | |
423 | if (opt->values[i].flags & flagmask) | |
424 | return &opt->values[i]; | |
425 | ||
426 | return NULL; | |
427 | } | |
428 | ||
429 | /* If maxval is missing then there's no range to check. In case minval is | |
430 | * missing then it's considered to be 0. | |
431 | */ | |
432 | static bool bond_opt_check_range(const struct bond_option *opt, u64 val) | |
433 | { | |
f3253339 | 434 | const struct bond_opt_value *minval, *maxval; |
09117362 NA |
435 | |
436 | minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN); | |
437 | maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX); | |
438 | if (!maxval || (minval && val < minval->value) || val > maxval->value) | |
439 | return false; | |
440 | ||
441 | return true; | |
442 | } | |
443 | ||
444 | /** | |
445 | * bond_opt_parse - parse option value | |
446 | * @opt: the option to parse against | |
447 | * @val: value to parse | |
448 | * | |
449 | * This function tries to extract the value from @val and check if it's | |
450 | * a possible match for the option and returns NULL if a match isn't found, | |
451 | * or the struct_opt_value that matched. It also strips the new line from | |
452 | * @val->string if it's present. | |
453 | */ | |
f3253339 | 454 | const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, |
455 | struct bond_opt_value *val) | |
09117362 NA |
456 | { |
457 | char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, }; | |
f3253339 | 458 | const struct bond_opt_value *tbl; |
459 | const struct bond_opt_value *ret = NULL; | |
09117362 NA |
460 | bool checkval; |
461 | int i, rv; | |
462 | ||
463 | /* No parsing if the option wants a raw val */ | |
464 | if (opt->flags & BOND_OPTFLAG_RAWVAL) | |
465 | return val; | |
466 | ||
467 | tbl = opt->values; | |
468 | if (!tbl) | |
469 | goto out; | |
470 | ||
471 | /* ULLONG_MAX is used to bypass string processing */ | |
472 | checkval = val->value != ULLONG_MAX; | |
473 | if (!checkval) { | |
474 | if (!val->string) | |
475 | goto out; | |
476 | p = strchr(val->string, '\n'); | |
477 | if (p) | |
478 | *p = '\0'; | |
479 | for (p = val->string; *p; p++) | |
480 | if (!(isdigit(*p) || isspace(*p))) | |
481 | break; | |
482 | /* The following code extracts the string to match or the value | |
483 | * and sets checkval appropriately | |
484 | */ | |
485 | if (*p) { | |
486 | rv = sscanf(val->string, "%32s", valstr); | |
487 | } else { | |
488 | rv = sscanf(val->string, "%llu", &val->value); | |
489 | checkval = true; | |
490 | } | |
491 | if (!rv) | |
492 | goto out; | |
493 | } | |
494 | ||
495 | for (i = 0; tbl[i].string; i++) { | |
496 | /* Check for exact match */ | |
497 | if (checkval) { | |
498 | if (val->value == tbl[i].value) | |
499 | ret = &tbl[i]; | |
500 | } else { | |
501 | if (!strcmp(valstr, "default") && | |
502 | (tbl[i].flags & BOND_VALFLAG_DEFAULT)) | |
503 | ret = &tbl[i]; | |
504 | ||
505 | if (!strcmp(valstr, tbl[i].string)) | |
506 | ret = &tbl[i]; | |
507 | } | |
508 | /* Found an exact match */ | |
509 | if (ret) | |
510 | goto out; | |
511 | } | |
512 | /* Possible range match */ | |
513 | if (checkval && bond_opt_check_range(opt, val->value)) | |
514 | ret = val; | |
515 | out: | |
516 | return ret; | |
517 | } | |
518 | ||
519 | /* Check opt's dependencies against bond mode and currently set options */ | |
520 | static int bond_opt_check_deps(struct bonding *bond, | |
521 | const struct bond_option *opt) | |
522 | { | |
523 | struct bond_params *params = &bond->params; | |
524 | ||
525 | if (test_bit(params->mode, &opt->unsuppmodes)) | |
526 | return -EACCES; | |
527 | if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond)) | |
528 | return -ENOTEMPTY; | |
529 | if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP)) | |
530 | return -EBUSY; | |
531 | ||
532 | return 0; | |
533 | } | |
534 | ||
535 | static void bond_opt_dep_print(struct bonding *bond, | |
536 | const struct bond_option *opt) | |
537 | { | |
28f084cc | 538 | const struct bond_opt_value *modeval; |
09117362 NA |
539 | struct bond_params *params; |
540 | ||
541 | params = &bond->params; | |
2b3798d5 | 542 | modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode); |
09117362 | 543 | if (test_bit(params->mode, &opt->unsuppmodes)) |
2de390ba VF |
544 | netdev_err(bond->dev, "option %s: mode dependency failed, not supported in mode %s(%llu)\n", |
545 | opt->name, modeval->string, modeval->value); | |
09117362 NA |
546 | } |
547 | ||
548 | static void bond_opt_error_interpret(struct bonding *bond, | |
549 | const struct bond_option *opt, | |
28f084cc | 550 | int error, const struct bond_opt_value *val) |
09117362 | 551 | { |
28f084cc | 552 | const struct bond_opt_value *minval, *maxval; |
09117362 NA |
553 | char *p; |
554 | ||
555 | switch (error) { | |
556 | case -EINVAL: | |
557 | if (val) { | |
558 | if (val->string) { | |
559 | /* sometimes RAWVAL opts may have new lines */ | |
560 | p = strchr(val->string, '\n'); | |
561 | if (p) | |
562 | *p = '\0'; | |
2de390ba VF |
563 | netdev_err(bond->dev, "option %s: invalid value (%s)\n", |
564 | opt->name, val->string); | |
09117362 | 565 | } else { |
2de390ba VF |
566 | netdev_err(bond->dev, "option %s: invalid value (%llu)\n", |
567 | opt->name, val->value); | |
09117362 NA |
568 | } |
569 | } | |
570 | minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN); | |
571 | maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX); | |
572 | if (!maxval) | |
573 | break; | |
2de390ba VF |
574 | netdev_err(bond->dev, "option %s: allowed values %llu - %llu\n", |
575 | opt->name, minval ? minval->value : 0, maxval->value); | |
09117362 NA |
576 | break; |
577 | case -EACCES: | |
578 | bond_opt_dep_print(bond, opt); | |
579 | break; | |
580 | case -ENOTEMPTY: | |
2de390ba VF |
581 | netdev_err(bond->dev, "option %s: unable to set because the bond device has slaves\n", |
582 | opt->name); | |
09117362 NA |
583 | break; |
584 | case -EBUSY: | |
2de390ba VF |
585 | netdev_err(bond->dev, "option %s: unable to set because the bond device is up\n", |
586 | opt->name); | |
09117362 NA |
587 | break; |
588 | default: | |
589 | break; | |
590 | } | |
591 | } | |
592 | ||
593 | /** | |
594 | * __bond_opt_set - set a bonding option | |
595 | * @bond: target bond device | |
596 | * @option: option to set | |
597 | * @val: value to set it to | |
598 | * | |
599 | * This function is used to change the bond's option value, it can be | |
600 | * used for both enabling/changing an option and for disabling it. RTNL lock | |
601 | * must be obtained before calling this function. | |
602 | */ | |
603 | int __bond_opt_set(struct bonding *bond, | |
604 | unsigned int option, struct bond_opt_value *val) | |
605 | { | |
28f084cc | 606 | const struct bond_opt_value *retval = NULL; |
09117362 NA |
607 | const struct bond_option *opt; |
608 | int ret = -ENOENT; | |
609 | ||
610 | ASSERT_RTNL(); | |
611 | ||
612 | opt = bond_opt_get(option); | |
613 | if (WARN_ON(!val) || WARN_ON(!opt)) | |
614 | goto out; | |
615 | ret = bond_opt_check_deps(bond, opt); | |
616 | if (ret) | |
617 | goto out; | |
618 | retval = bond_opt_parse(opt, val); | |
619 | if (!retval) { | |
620 | ret = -EINVAL; | |
621 | goto out; | |
622 | } | |
623 | ret = opt->set(bond, retval); | |
624 | out: | |
625 | if (ret) | |
626 | bond_opt_error_interpret(bond, opt, ret, val); | |
d4261e56 JP |
627 | else |
628 | call_netdevice_notifiers(NETDEV_CHANGEINFODATA, bond->dev); | |
09117362 NA |
629 | |
630 | return ret; | |
631 | } | |
632 | ||
633 | /** | |
634 | * bond_opt_tryset_rtnl - try to acquire rtnl and call __bond_opt_set | |
635 | * @bond: target bond device | |
636 | * @option: option to set | |
637 | * @buf: value to set it to | |
638 | * | |
639 | * This function tries to acquire RTNL without blocking and if successful | |
640 | * calls __bond_opt_set. It is mainly used for sysfs option manipulation. | |
641 | */ | |
642 | int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf) | |
643 | { | |
644 | struct bond_opt_value optval; | |
645 | int ret; | |
646 | ||
647 | if (!rtnl_trylock()) | |
648 | return restart_syscall(); | |
649 | bond_opt_initstr(&optval, buf); | |
650 | ret = __bond_opt_set(bond, option, &optval); | |
651 | rtnl_unlock(); | |
652 | ||
653 | return ret; | |
654 | } | |
655 | ||
656 | /** | |
657 | * bond_opt_get - get a pointer to an option | |
658 | * @option: option for which to return a pointer | |
659 | * | |
660 | * This function checks if option is valid and if so returns a pointer | |
661 | * to its entry in the bond_opts[] option array. | |
662 | */ | |
f3253339 | 663 | const struct bond_option *bond_opt_get(unsigned int option) |
09117362 NA |
664 | { |
665 | if (!BOND_OPT_VALID(option)) | |
666 | return NULL; | |
667 | ||
668 | return &bond_opts[option]; | |
669 | } | |
670 | ||
ff11d8b2 NA |
671 | static int bond_option_mode_set(struct bonding *bond, |
672 | const struct bond_opt_value *newval) | |
72be35fe | 673 | { |
267bed77 | 674 | if (!bond_mode_uses_arp(newval->value) && bond->params.arp_interval) { |
2de390ba VF |
675 | netdev_info(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n", |
676 | newval->string); | |
fe9d04af | 677 | /* disable arp monitoring */ |
678 | bond->params.arp_interval = 0; | |
679 | /* set miimon to default value */ | |
680 | bond->params.miimon = BOND_DEFAULT_MIIMON; | |
2de390ba VF |
681 | netdev_info(bond->dev, "Setting MII monitoring interval to %d\n", |
682 | bond->params.miimon); | |
72be35fe JP |
683 | } |
684 | ||
685 | /* don't cache arp_validate between modes */ | |
686 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
2b3798d5 NA |
687 | bond->params.mode = newval->value; |
688 | ||
72be35fe JP |
689 | return 0; |
690 | } | |
d9e32b21 | 691 | |
752d48b5 JP |
692 | static struct net_device *__bond_option_active_slave_get(struct bonding *bond, |
693 | struct slave *slave) | |
694 | { | |
ec0865a9 | 695 | return bond_uses_primary(bond) && slave ? slave->dev : NULL; |
752d48b5 JP |
696 | } |
697 | ||
698 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) | |
699 | { | |
700 | struct slave *slave = rcu_dereference(bond->curr_active_slave); | |
701 | ||
702 | return __bond_option_active_slave_get(bond, slave); | |
703 | } | |
704 | ||
f3253339 | 705 | static int bond_option_active_slave_set(struct bonding *bond, |
28f084cc | 706 | const struct bond_opt_value *newval) |
d9e32b21 | 707 | { |
d1fbd3ed NA |
708 | char ifname[IFNAMSIZ] = { 0, }; |
709 | struct net_device *slave_dev; | |
d9e32b21 JP |
710 | int ret = 0; |
711 | ||
d1fbd3ed NA |
712 | sscanf(newval->string, "%15s", ifname); /* IFNAMSIZ */ |
713 | if (!strlen(ifname) || newval->string[0] == '\n') { | |
714 | slave_dev = NULL; | |
715 | } else { | |
716 | slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
717 | if (!slave_dev) | |
718 | return -ENODEV; | |
719 | } | |
720 | ||
d9e32b21 JP |
721 | if (slave_dev) { |
722 | if (!netif_is_bond_slave(slave_dev)) { | |
2de390ba VF |
723 | netdev_err(bond->dev, "Device %s is not bonding slave\n", |
724 | slave_dev->name); | |
d9e32b21 JP |
725 | return -EINVAL; |
726 | } | |
727 | ||
728 | if (bond->dev != netdev_master_upper_dev_get(slave_dev)) { | |
2de390ba VF |
729 | netdev_err(bond->dev, "Device %s is not our slave\n", |
730 | slave_dev->name); | |
d9e32b21 JP |
731 | return -EINVAL; |
732 | } | |
733 | } | |
734 | ||
d9e32b21 | 735 | block_netpoll_tx(); |
d9e32b21 JP |
736 | /* check to see if we are clearing active */ |
737 | if (!slave_dev) { | |
2de390ba | 738 | netdev_info(bond->dev, "Clearing current active slave\n"); |
8800a244 | 739 | RCU_INIT_POINTER(bond->curr_active_slave, NULL); |
d9e32b21 JP |
740 | bond_select_active_slave(bond); |
741 | } else { | |
1c72cfdc | 742 | struct slave *old_active = rtnl_dereference(bond->curr_active_slave); |
d9e32b21 JP |
743 | struct slave *new_active = bond_slave_get_rtnl(slave_dev); |
744 | ||
745 | BUG_ON(!new_active); | |
746 | ||
747 | if (new_active == old_active) { | |
748 | /* do nothing */ | |
2de390ba VF |
749 | netdev_info(bond->dev, "%s is already the current active slave\n", |
750 | new_active->dev->name); | |
d9e32b21 JP |
751 | } else { |
752 | if (old_active && (new_active->link == BOND_LINK_UP) && | |
b6adc610 | 753 | bond_slave_is_up(new_active)) { |
2de390ba VF |
754 | netdev_info(bond->dev, "Setting %s as active slave\n", |
755 | new_active->dev->name); | |
d9e32b21 JP |
756 | bond_change_active_slave(bond, new_active); |
757 | } else { | |
2de390ba VF |
758 | netdev_err(bond->dev, "Could not set %s as active slave; either %s is down or the link is down\n", |
759 | new_active->dev->name, | |
760 | new_active->dev->name); | |
d9e32b21 JP |
761 | ret = -EINVAL; |
762 | } | |
763 | } | |
764 | } | |
d9e32b21 | 765 | unblock_netpoll_tx(); |
d1fbd3ed | 766 | |
d9e32b21 JP |
767 | return ret; |
768 | } | |
eecdaa6e | 769 | |
dc3e5d18 NA |
770 | /* There are two tricky bits here. First, if MII monitoring is activated, then |
771 | * we must disable ARP monitoring. Second, if the timer isn't running, we must | |
772 | * start it. | |
773 | */ | |
f3253339 | 774 | static int bond_option_miimon_set(struct bonding *bond, |
28f084cc | 775 | const struct bond_opt_value *newval) |
eecdaa6e | 776 | { |
2de390ba VF |
777 | netdev_info(bond->dev, "Setting MII monitoring interval to %llu\n", |
778 | newval->value); | |
b98d9c66 | 779 | bond->params.miimon = newval->value; |
eecdaa6e | 780 | if (bond->params.updelay) |
2de390ba | 781 | netdev_info(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\n", |
eecdaa6e | 782 | bond->params.updelay * bond->params.miimon); |
783 | if (bond->params.downdelay) | |
2de390ba VF |
784 | netdev_info(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon value\n", |
785 | bond->params.downdelay * bond->params.miimon); | |
b98d9c66 | 786 | if (newval->value && bond->params.arp_interval) { |
2de390ba | 787 | netdev_info(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitoring...\n"); |
eecdaa6e | 788 | bond->params.arp_interval = 0; |
789 | if (bond->params.arp_validate) | |
790 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
791 | } | |
792 | if (bond->dev->flags & IFF_UP) { | |
793 | /* If the interface is up, we may need to fire off | |
794 | * the MII timer. If the interface is down, the | |
795 | * timer will get fired off when the open function | |
796 | * is called. | |
797 | */ | |
b98d9c66 | 798 | if (!newval->value) { |
eecdaa6e | 799 | cancel_delayed_work_sync(&bond->mii_work); |
800 | } else { | |
801 | cancel_delayed_work_sync(&bond->arp_work); | |
802 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
803 | } | |
804 | } | |
b98d9c66 | 805 | |
eecdaa6e | 806 | return 0; |
807 | } | |
25852e29 | 808 | |
dc3e5d18 NA |
809 | /* Set up and down delays. These must be multiples of the |
810 | * MII monitoring value, and are stored internally as the multiplier. | |
811 | * Thus, we must translate to MS for the real world. | |
812 | */ | |
f3253339 | 813 | static int bond_option_updelay_set(struct bonding *bond, |
28f084cc | 814 | const struct bond_opt_value *newval) |
25852e29 | 815 | { |
0681a282 NA |
816 | int value = newval->value; |
817 | ||
e4994612 | 818 | if (!bond->params.miimon) { |
2de390ba | 819 | netdev_err(bond->dev, "Unable to set up delay as MII monitoring is disabled\n"); |
25852e29 | 820 | return -EPERM; |
821 | } | |
0681a282 | 822 | if ((value % bond->params.miimon) != 0) { |
2de390ba VF |
823 | netdev_warn(bond->dev, "up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
824 | value, bond->params.miimon, | |
825 | (value / bond->params.miimon) * | |
826 | bond->params.miimon); | |
25852e29 | 827 | } |
0681a282 | 828 | bond->params.updelay = value / bond->params.miimon; |
2de390ba VF |
829 | netdev_info(bond->dev, "Setting up delay to %d\n", |
830 | bond->params.updelay * bond->params.miimon); | |
25852e29 | 831 | |
832 | return 0; | |
833 | } | |
c7461f9b | 834 | |
f3253339 | 835 | static int bond_option_downdelay_set(struct bonding *bond, |
28f084cc | 836 | const struct bond_opt_value *newval) |
c7461f9b | 837 | { |
0681a282 NA |
838 | int value = newval->value; |
839 | ||
25a9b54a | 840 | if (!bond->params.miimon) { |
2de390ba | 841 | netdev_err(bond->dev, "Unable to set down delay as MII monitoring is disabled\n"); |
c7461f9b | 842 | return -EPERM; |
843 | } | |
0681a282 | 844 | if ((value % bond->params.miimon) != 0) { |
2de390ba VF |
845 | netdev_warn(bond->dev, "down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
846 | value, bond->params.miimon, | |
847 | (value / bond->params.miimon) * | |
848 | bond->params.miimon); | |
c7461f9b | 849 | } |
0681a282 | 850 | bond->params.downdelay = value / bond->params.miimon; |
2de390ba VF |
851 | netdev_info(bond->dev, "Setting down delay to %d\n", |
852 | bond->params.downdelay * bond->params.miimon); | |
c7461f9b | 853 | |
854 | return 0; | |
855 | } | |
9f53e14e | 856 | |
f3253339 | 857 | static int bond_option_use_carrier_set(struct bonding *bond, |
28f084cc | 858 | const struct bond_opt_value *newval) |
9f53e14e | 859 | { |
2de390ba VF |
860 | netdev_info(bond->dev, "Setting use_carrier to %llu\n", |
861 | newval->value); | |
0fff0608 | 862 | bond->params.use_carrier = newval->value; |
9f53e14e | 863 | |
864 | return 0; | |
865 | } | |
06151dbc | 866 | |
dc3e5d18 NA |
867 | /* There are two tricky bits here. First, if ARP monitoring is activated, then |
868 | * we must disable MII monitoring. Second, if the ARP timer isn't running, | |
869 | * we must start it. | |
870 | */ | |
f3253339 | 871 | static int bond_option_arp_interval_set(struct bonding *bond, |
28f084cc | 872 | const struct bond_opt_value *newval) |
06151dbc | 873 | { |
2de390ba VF |
874 | netdev_info(bond->dev, "Setting ARP monitoring interval to %llu\n", |
875 | newval->value); | |
7bdb04ed NA |
876 | bond->params.arp_interval = newval->value; |
877 | if (newval->value) { | |
06151dbc | 878 | if (bond->params.miimon) { |
2de390ba | 879 | netdev_info(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitoring\n"); |
06151dbc | 880 | bond->params.miimon = 0; |
881 | } | |
882 | if (!bond->params.arp_targets[0]) | |
2de390ba | 883 | netdev_info(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n"); |
06151dbc | 884 | } |
885 | if (bond->dev->flags & IFF_UP) { | |
886 | /* If the interface is up, we may need to fire off | |
887 | * the ARP timer. If the interface is down, the | |
888 | * timer will get fired off when the open function | |
889 | * is called. | |
890 | */ | |
7bdb04ed | 891 | if (!newval->value) { |
06151dbc | 892 | if (bond->params.arp_validate) |
893 | bond->recv_probe = NULL; | |
894 | cancel_delayed_work_sync(&bond->arp_work); | |
895 | } else { | |
896 | /* arp_validate can be set only in active-backup mode */ | |
3fe68df9 | 897 | bond->recv_probe = bond_arp_rcv; |
06151dbc | 898 | cancel_delayed_work_sync(&bond->mii_work); |
899 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
900 | } | |
901 | } | |
902 | ||
903 | return 0; | |
904 | } | |
7f28fa10 | 905 | |
906 | static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot, | |
907 | __be32 target, | |
908 | unsigned long last_rx) | |
909 | { | |
910 | __be32 *targets = bond->params.arp_targets; | |
911 | struct list_head *iter; | |
912 | struct slave *slave; | |
913 | ||
914 | if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) { | |
915 | bond_for_each_slave(bond, slave, iter) | |
916 | slave->target_last_arp_rx[slot] = last_rx; | |
917 | targets[slot] = target; | |
918 | } | |
919 | } | |
920 | ||
921 | static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) | |
922 | { | |
923 | __be32 *targets = bond->params.arp_targets; | |
924 | int ind; | |
925 | ||
2807a9fe | 926 | if (!bond_is_ip_target_ok(target)) { |
2de390ba VF |
927 | netdev_err(bond->dev, "invalid ARP target %pI4 specified for addition\n", |
928 | &target); | |
7f28fa10 | 929 | return -EINVAL; |
930 | } | |
931 | ||
932 | if (bond_get_targets_ip(targets, target) != -1) { /* dup */ | |
2de390ba VF |
933 | netdev_err(bond->dev, "ARP target %pI4 is already present\n", |
934 | &target); | |
7f28fa10 | 935 | return -EINVAL; |
936 | } | |
937 | ||
938 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ | |
939 | if (ind == -1) { | |
2de390ba | 940 | netdev_err(bond->dev, "ARP target table is full!\n"); |
7f28fa10 | 941 | return -EINVAL; |
942 | } | |
943 | ||
2de390ba | 944 | netdev_info(bond->dev, "Adding ARP target %pI4\n", &target); |
7f28fa10 | 945 | |
946 | _bond_options_arp_ip_target_set(bond, ind, target, jiffies); | |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
f3253339 | 951 | static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) |
7f28fa10 | 952 | { |
246df7b4 | 953 | return _bond_option_arp_ip_target_add(bond, target); |
7f28fa10 | 954 | } |
955 | ||
f3253339 | 956 | static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target) |
7f28fa10 | 957 | { |
958 | __be32 *targets = bond->params.arp_targets; | |
959 | struct list_head *iter; | |
960 | struct slave *slave; | |
961 | unsigned long *targets_rx; | |
962 | int ind, i; | |
963 | ||
2807a9fe | 964 | if (!bond_is_ip_target_ok(target)) { |
2de390ba VF |
965 | netdev_err(bond->dev, "invalid ARP target %pI4 specified for removal\n", |
966 | &target); | |
7f28fa10 | 967 | return -EINVAL; |
968 | } | |
969 | ||
970 | ind = bond_get_targets_ip(targets, target); | |
971 | if (ind == -1) { | |
2de390ba VF |
972 | netdev_err(bond->dev, "unable to remove nonexistent ARP target %pI4\n", |
973 | &target); | |
7f28fa10 | 974 | return -EINVAL; |
975 | } | |
976 | ||
977 | if (ind == 0 && !targets[1] && bond->params.arp_interval) | |
2de390ba | 978 | netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n"); |
7f28fa10 | 979 | |
2de390ba | 980 | netdev_info(bond->dev, "Removing ARP target %pI4\n", &target); |
7f28fa10 | 981 | |
7f28fa10 | 982 | bond_for_each_slave(bond, slave, iter) { |
983 | targets_rx = slave->target_last_arp_rx; | |
984 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
985 | targets_rx[i] = targets_rx[i+1]; | |
986 | targets_rx[i] = 0; | |
987 | } | |
988 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
989 | targets[i] = targets[i+1]; | |
990 | targets[i] = 0; | |
991 | ||
7f28fa10 | 992 | return 0; |
993 | } | |
994 | ||
4fb0ef58 | 995 | void bond_option_arp_ip_targets_clear(struct bonding *bond) |
7f28fa10 | 996 | { |
4fb0ef58 | 997 | int i; |
7f28fa10 | 998 | |
7f28fa10 | 999 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) |
1000 | _bond_options_arp_ip_target_set(bond, i, 0, 0); | |
4fb0ef58 | 1001 | } |
7f28fa10 | 1002 | |
f3253339 | 1003 | static int bond_option_arp_ip_targets_set(struct bonding *bond, |
28f084cc | 1004 | const struct bond_opt_value *newval) |
4fb0ef58 NA |
1005 | { |
1006 | int ret = -EPERM; | |
1007 | __be32 target; | |
1008 | ||
1009 | if (newval->string) { | |
1010 | if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) { | |
2de390ba VF |
1011 | netdev_err(bond->dev, "invalid ARP target %pI4 specified\n", |
1012 | &target); | |
4fb0ef58 NA |
1013 | return ret; |
1014 | } | |
1015 | if (newval->string[0] == '+') | |
1016 | ret = bond_option_arp_ip_target_add(bond, target); | |
1017 | else if (newval->string[0] == '-') | |
1018 | ret = bond_option_arp_ip_target_rem(bond, target); | |
1019 | else | |
2de390ba | 1020 | netdev_err(bond->dev, "no command found in arp_ip_targets file - use +<addr> or -<addr>\n"); |
4fb0ef58 NA |
1021 | } else { |
1022 | target = newval->value; | |
1023 | ret = bond_option_arp_ip_target_add(bond, target); | |
7f28fa10 | 1024 | } |
1025 | ||
7f28fa10 | 1026 | return ret; |
1027 | } | |
29c49482 | 1028 | |
f3253339 | 1029 | static int bond_option_arp_validate_set(struct bonding *bond, |
28f084cc | 1030 | const struct bond_opt_value *newval) |
29c49482 | 1031 | { |
2de390ba VF |
1032 | netdev_info(bond->dev, "Setting arp_validate to %s (%llu)\n", |
1033 | newval->string, newval->value); | |
29c49482 | 1034 | |
1035 | if (bond->dev->flags & IFF_UP) { | |
16228881 | 1036 | if (!newval->value) |
29c49482 | 1037 | bond->recv_probe = NULL; |
1038 | else if (bond->params.arp_interval) | |
1039 | bond->recv_probe = bond_arp_rcv; | |
1040 | } | |
16228881 | 1041 | bond->params.arp_validate = newval->value; |
29c49482 | 1042 | |
1043 | return 0; | |
1044 | } | |
d5c84254 | 1045 | |
f3253339 | 1046 | static int bond_option_arp_all_targets_set(struct bonding *bond, |
28f084cc | 1047 | const struct bond_opt_value *newval) |
d5c84254 | 1048 | { |
2de390ba VF |
1049 | netdev_info(bond->dev, "Setting arp_all_targets to %s (%llu)\n", |
1050 | newval->string, newval->value); | |
edf36b24 | 1051 | bond->params.arp_all_targets = newval->value; |
d5c84254 | 1052 | |
1053 | return 0; | |
1054 | } | |
0a98a0d1 | 1055 | |
f3253339 | 1056 | static int bond_option_primary_set(struct bonding *bond, |
28f084cc | 1057 | const struct bond_opt_value *newval) |
0a98a0d1 | 1058 | { |
180222f0 | 1059 | char *p, *primary = newval->string; |
0a98a0d1 | 1060 | struct list_head *iter; |
1061 | struct slave *slave; | |
0a98a0d1 | 1062 | |
1063 | block_netpoll_tx(); | |
0a98a0d1 | 1064 | |
180222f0 NA |
1065 | p = strchr(primary, '\n'); |
1066 | if (p) | |
1067 | *p = '\0'; | |
0a98a0d1 | 1068 | /* check to see if we are clearing primary */ |
1069 | if (!strlen(primary)) { | |
2de390ba | 1070 | netdev_info(bond->dev, "Setting primary slave to None\n"); |
059b47e8 | 1071 | RCU_INIT_POINTER(bond->primary_slave, NULL); |
0a98a0d1 | 1072 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
1073 | bond_select_active_slave(bond); | |
1074 | goto out; | |
1075 | } | |
1076 | ||
1077 | bond_for_each_slave(bond, slave, iter) { | |
1078 | if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) { | |
2de390ba VF |
1079 | netdev_info(bond->dev, "Setting %s as primary slave\n", |
1080 | slave->dev->name); | |
059b47e8 | 1081 | rcu_assign_pointer(bond->primary_slave, slave); |
0a98a0d1 | 1082 | strcpy(bond->params.primary, slave->dev->name); |
1083 | bond_select_active_slave(bond); | |
1084 | goto out; | |
1085 | } | |
1086 | } | |
1087 | ||
059b47e8 | 1088 | if (rtnl_dereference(bond->primary_slave)) { |
2de390ba | 1089 | netdev_info(bond->dev, "Setting primary slave to None\n"); |
059b47e8 | 1090 | RCU_INIT_POINTER(bond->primary_slave, NULL); |
c59ab673 | 1091 | bond_select_active_slave(bond); |
1092 | } | |
0a98a0d1 | 1093 | strncpy(bond->params.primary, primary, IFNAMSIZ); |
1094 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1095 | ||
2de390ba VF |
1096 | netdev_info(bond->dev, "Recording %s as primary, but it has not been enslaved to %s yet\n", |
1097 | primary, bond->dev->name); | |
0a98a0d1 | 1098 | |
1099 | out: | |
0a98a0d1 | 1100 | unblock_netpoll_tx(); |
1101 | ||
180222f0 | 1102 | return 0; |
0a98a0d1 | 1103 | } |
8a41ae44 | 1104 | |
f3253339 | 1105 | static int bond_option_primary_reselect_set(struct bonding *bond, |
28f084cc | 1106 | const struct bond_opt_value *newval) |
8a41ae44 | 1107 | { |
2de390ba VF |
1108 | netdev_info(bond->dev, "Setting primary_reselect to %s (%llu)\n", |
1109 | newval->string, newval->value); | |
388d3a6d | 1110 | bond->params.primary_reselect = newval->value; |
8a41ae44 | 1111 | |
1112 | block_netpoll_tx(); | |
8a41ae44 | 1113 | bond_select_active_slave(bond); |
8a41ae44 | 1114 | unblock_netpoll_tx(); |
1115 | ||
1116 | return 0; | |
1117 | } | |
89901972 | 1118 | |
f3253339 | 1119 | static int bond_option_fail_over_mac_set(struct bonding *bond, |
28f084cc | 1120 | const struct bond_opt_value *newval) |
89901972 | 1121 | { |
2de390ba VF |
1122 | netdev_info(bond->dev, "Setting fail_over_mac to %s (%llu)\n", |
1123 | newval->string, newval->value); | |
1df6b6aa | 1124 | bond->params.fail_over_mac = newval->value; |
89901972 | 1125 | |
1126 | return 0; | |
1127 | } | |
f70161c6 | 1128 | |
f3253339 | 1129 | static int bond_option_xmit_hash_policy_set(struct bonding *bond, |
28f084cc | 1130 | const struct bond_opt_value *newval) |
f70161c6 | 1131 | { |
2de390ba VF |
1132 | netdev_info(bond->dev, "Setting xmit hash policy to %s (%llu)\n", |
1133 | newval->string, newval->value); | |
a4b32ce7 | 1134 | bond->params.xmit_policy = newval->value; |
f70161c6 | 1135 | |
1136 | return 0; | |
1137 | } | |
d8838de7 | 1138 | |
f3253339 | 1139 | static int bond_option_resend_igmp_set(struct bonding *bond, |
28f084cc | 1140 | const struct bond_opt_value *newval) |
d8838de7 | 1141 | { |
2de390ba VF |
1142 | netdev_info(bond->dev, "Setting resend_igmp to %llu\n", |
1143 | newval->value); | |
105c8fb6 | 1144 | bond->params.resend_igmp = newval->value; |
d8838de7 | 1145 | |
1146 | return 0; | |
1147 | } | |
2c9839c1 | 1148 | |
f3253339 | 1149 | static int bond_option_num_peer_notif_set(struct bonding *bond, |
28f084cc | 1150 | const struct bond_opt_value *newval) |
2c9839c1 | 1151 | { |
ef56becb NA |
1152 | bond->params.num_peer_notif = newval->value; |
1153 | ||
2c9839c1 | 1154 | return 0; |
1155 | } | |
1cc0b1e3 | 1156 | |
f3253339 | 1157 | static int bond_option_all_slaves_active_set(struct bonding *bond, |
28f084cc | 1158 | const struct bond_opt_value *newval) |
1cc0b1e3 | 1159 | { |
1160 | struct list_head *iter; | |
1161 | struct slave *slave; | |
1162 | ||
3df01162 | 1163 | if (newval->value == bond->params.all_slaves_active) |
1cc0b1e3 | 1164 | return 0; |
3df01162 | 1165 | bond->params.all_slaves_active = newval->value; |
1cc0b1e3 | 1166 | bond_for_each_slave(bond, slave, iter) { |
1167 | if (!bond_is_active_slave(slave)) { | |
3df01162 | 1168 | if (newval->value) |
1cc0b1e3 | 1169 | slave->inactive = 0; |
1170 | else | |
1171 | slave->inactive = 1; | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | return 0; | |
1176 | } | |
7d101008 | 1177 | |
f3253339 | 1178 | static int bond_option_min_links_set(struct bonding *bond, |
28f084cc | 1179 | const struct bond_opt_value *newval) |
7d101008 | 1180 | { |
2de390ba VF |
1181 | netdev_info(bond->dev, "Setting min links value to %llu\n", |
1182 | newval->value); | |
633ddc9e | 1183 | bond->params.min_links = newval->value; |
2477bc9a | 1184 | bond_set_carrier(bond); |
7d101008 | 1185 | |
1186 | return 0; | |
1187 | } | |
8d836d09 | 1188 | |
f3253339 | 1189 | static int bond_option_lp_interval_set(struct bonding *bond, |
28f084cc | 1190 | const struct bond_opt_value *newval) |
8d836d09 | 1191 | { |
4325b374 | 1192 | bond->params.lp_interval = newval->value; |
8d836d09 | 1193 | |
1194 | return 0; | |
1195 | } | |
c13ab3ff | 1196 | |
f3253339 | 1197 | static int bond_option_pps_set(struct bonding *bond, |
28f084cc | 1198 | const struct bond_opt_value *newval) |
c13ab3ff | 1199 | { |
aa59d851 NA |
1200 | bond->params.packets_per_slave = newval->value; |
1201 | if (newval->value > 0) { | |
809fa972 | 1202 | bond->params.reciprocal_packets_per_slave = |
aa59d851 | 1203 | reciprocal_value(newval->value); |
809fa972 HFS |
1204 | } else { |
1205 | /* reciprocal_packets_per_slave is unused if | |
1206 | * packets_per_slave is 0 or 1, just initialize it | |
1207 | */ | |
1208 | bond->params.reciprocal_packets_per_slave = | |
1209 | (struct reciprocal_value) { 0 }; | |
1210 | } | |
c13ab3ff | 1211 | |
1212 | return 0; | |
1213 | } | |
998e40bb | 1214 | |
f3253339 | 1215 | static int bond_option_lacp_rate_set(struct bonding *bond, |
28f084cc | 1216 | const struct bond_opt_value *newval) |
998e40bb | 1217 | { |
2de390ba VF |
1218 | netdev_info(bond->dev, "Setting LACP rate to %s (%llu)\n", |
1219 | newval->string, newval->value); | |
d3131de7 | 1220 | bond->params.lacp_fast = newval->value; |
3243c47b | 1221 | bond_3ad_update_lacp_rate(bond); |
998e40bb | 1222 | |
1223 | return 0; | |
1224 | } | |
ec029fac | 1225 | |
f3253339 | 1226 | static int bond_option_ad_select_set(struct bonding *bond, |
28f084cc | 1227 | const struct bond_opt_value *newval) |
ec029fac | 1228 | { |
2de390ba VF |
1229 | netdev_info(bond->dev, "Setting ad_select to %s (%llu)\n", |
1230 | newval->string, newval->value); | |
9e5f5eeb | 1231 | bond->params.ad_select = newval->value; |
ec029fac | 1232 | |
1233 | return 0; | |
1234 | } | |
24089ba1 | 1235 | |
f3253339 | 1236 | static int bond_option_queue_id_set(struct bonding *bond, |
28f084cc | 1237 | const struct bond_opt_value *newval) |
24089ba1 NA |
1238 | { |
1239 | struct slave *slave, *update_slave; | |
1240 | struct net_device *sdev; | |
1241 | struct list_head *iter; | |
1242 | char *delim; | |
1243 | int ret = 0; | |
1244 | u16 qid; | |
1245 | ||
1246 | /* delim will point to queue id if successful */ | |
1247 | delim = strchr(newval->string, ':'); | |
1248 | if (!delim) | |
1249 | goto err_no_cmd; | |
1250 | ||
1251 | /* Terminate string that points to device name and bump it | |
1252 | * up one, so we can read the queue id there. | |
1253 | */ | |
1254 | *delim = '\0'; | |
1255 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1256 | goto err_no_cmd; | |
1257 | ||
1258 | /* Check buffer length, valid ifname and queue id */ | |
c313c89e | 1259 | if (!dev_valid_name(newval->string) || |
24089ba1 NA |
1260 | qid > bond->dev->real_num_tx_queues) |
1261 | goto err_no_cmd; | |
1262 | ||
1263 | /* Get the pointer to that interface if it exists */ | |
1264 | sdev = __dev_get_by_name(dev_net(bond->dev), newval->string); | |
1265 | if (!sdev) | |
1266 | goto err_no_cmd; | |
1267 | ||
1268 | /* Search for thes slave and check for duplicate qids */ | |
1269 | update_slave = NULL; | |
1270 | bond_for_each_slave(bond, slave, iter) { | |
1271 | if (sdev == slave->dev) | |
1272 | /* We don't need to check the matching | |
1273 | * slave for dups, since we're overwriting it | |
1274 | */ | |
1275 | update_slave = slave; | |
1276 | else if (qid && qid == slave->queue_id) { | |
1277 | goto err_no_cmd; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | if (!update_slave) | |
1282 | goto err_no_cmd; | |
1283 | ||
1284 | /* Actually set the qids for the slave */ | |
1285 | update_slave->queue_id = qid; | |
1286 | ||
1287 | out: | |
1288 | return ret; | |
1289 | ||
1290 | err_no_cmd: | |
2de390ba | 1291 | netdev_info(bond->dev, "invalid input for queue_id set\n"); |
24089ba1 NA |
1292 | ret = -EPERM; |
1293 | goto out; | |
1294 | ||
1295 | } | |
0e2e5b66 | 1296 | |
f3253339 | 1297 | static int bond_option_slaves_set(struct bonding *bond, |
28f084cc | 1298 | const struct bond_opt_value *newval) |
0e2e5b66 NA |
1299 | { |
1300 | char command[IFNAMSIZ + 1] = { 0, }; | |
1301 | struct net_device *dev; | |
1302 | char *ifname; | |
1303 | int ret; | |
1304 | ||
1305 | sscanf(newval->string, "%16s", command); /* IFNAMSIZ*/ | |
1306 | ifname = command + 1; | |
1307 | if ((strlen(command) <= 1) || | |
1308 | !dev_valid_name(ifname)) | |
1309 | goto err_no_cmd; | |
1310 | ||
1311 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
1312 | if (!dev) { | |
2de390ba VF |
1313 | netdev_info(bond->dev, "interface %s does not exist!\n", |
1314 | ifname); | |
0e2e5b66 NA |
1315 | ret = -ENODEV; |
1316 | goto out; | |
1317 | } | |
1318 | ||
1319 | switch (command[0]) { | |
1320 | case '+': | |
2de390ba | 1321 | netdev_info(bond->dev, "Adding slave %s\n", dev->name); |
0e2e5b66 NA |
1322 | ret = bond_enslave(bond->dev, dev); |
1323 | break; | |
1324 | ||
1325 | case '-': | |
2de390ba | 1326 | netdev_info(bond->dev, "Removing slave %s\n", dev->name); |
0e2e5b66 NA |
1327 | ret = bond_release(bond->dev, dev); |
1328 | break; | |
1329 | ||
1330 | default: | |
1331 | goto err_no_cmd; | |
1332 | } | |
1333 | ||
1334 | out: | |
1335 | return ret; | |
1336 | ||
1337 | err_no_cmd: | |
2de390ba | 1338 | netdev_err(bond->dev, "no command found in slaves file - use +ifname or -ifname\n"); |
0e2e5b66 NA |
1339 | ret = -EPERM; |
1340 | goto out; | |
1341 | } | |
e9f0fb88 MB |
1342 | |
1343 | static int bond_option_tlb_dynamic_lb_set(struct bonding *bond, | |
1344 | const struct bond_opt_value *newval) | |
1345 | { | |
2de390ba VF |
1346 | netdev_info(bond->dev, "Setting dynamic-lb to %s (%llu)\n", |
1347 | newval->string, newval->value); | |
e9f0fb88 MB |
1348 | bond->params.tlb_dynamic_lb = newval->value; |
1349 | ||
1350 | return 0; | |
1351 | } |