1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * drivers/net/bond/bond_options.c - bonding options |
4 | * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us> |
5 | * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com> |
6 | */ |
7 | |
8 | #include <linux/errno.h> |
9 | #include <linux/if.h> |
10 | #include <linux/netdevice.h> |
11 | #include <linux/spinlock.h> |
12 | #include <linux/rcupdate.h> |
13 | #include <linux/ctype.h> |
14 | #include <linux/inet.h> |
15 | #include <linux/sched/signal.h> |
16 | |
17 | #include <net/bonding.h> |
18 | |
19 | static int bond_option_active_slave_set(struct bonding *bond, |
20 | const struct bond_opt_value *newval); |
21 | static int bond_option_miimon_set(struct bonding *bond, |
22 | const struct bond_opt_value *newval); |
23 | static int bond_option_updelay_set(struct bonding *bond, |
24 | const struct bond_opt_value *newval); |
25 | static int bond_option_downdelay_set(struct bonding *bond, |
26 | const struct bond_opt_value *newval); |
27 | static int bond_option_peer_notif_delay_set(struct bonding *bond, |
28 | const struct bond_opt_value *newval); |
29 | static int bond_option_use_carrier_set(struct bonding *bond, |
30 | const struct bond_opt_value *newval); |
31 | static int bond_option_arp_interval_set(struct bonding *bond, |
32 | const struct bond_opt_value *newval); |
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, |
36 | const struct bond_opt_value *newval); |
37 | static int bond_option_ns_ip6_targets_set(struct bonding *bond, |
38 | const struct bond_opt_value *newval); |
39 | static int bond_option_arp_validate_set(struct bonding *bond, |
40 | const struct bond_opt_value *newval); |
41 | static int bond_option_arp_all_targets_set(struct bonding *bond, |
42 | const struct bond_opt_value *newval); |
43 | static int bond_option_prio_set(struct bonding *bond, |
44 | const struct bond_opt_value *newval); |
45 | static int bond_option_primary_set(struct bonding *bond, |
46 | const struct bond_opt_value *newval); |
47 | static int bond_option_primary_reselect_set(struct bonding *bond, |
48 | const struct bond_opt_value *newval); |
49 | static int bond_option_fail_over_mac_set(struct bonding *bond, |
50 | const struct bond_opt_value *newval); |
51 | static int bond_option_xmit_hash_policy_set(struct bonding *bond, |
52 | const struct bond_opt_value *newval); |
53 | static int bond_option_resend_igmp_set(struct bonding *bond, |
54 | const struct bond_opt_value *newval); |
55 | static int bond_option_num_peer_notif_set(struct bonding *bond, |
56 | const struct bond_opt_value *newval); |
57 | static int bond_option_all_slaves_active_set(struct bonding *bond, |
58 | const struct bond_opt_value *newval); |
59 | static int bond_option_min_links_set(struct bonding *bond, |
60 | const struct bond_opt_value *newval); |
61 | static int bond_option_lp_interval_set(struct bonding *bond, |
62 | const struct bond_opt_value *newval); |
63 | static int bond_option_pps_set(struct bonding *bond, |
64 | const struct bond_opt_value *newval); |
65 | static int bond_option_lacp_active_set(struct bonding *bond, |
66 | const struct bond_opt_value *newval); |
67 | static int bond_option_lacp_rate_set(struct bonding *bond, |
68 | const struct bond_opt_value *newval); |
69 | static int bond_option_ad_select_set(struct bonding *bond, |
70 | const struct bond_opt_value *newval); |
71 | static int bond_option_queue_id_set(struct bonding *bond, |
72 | const struct bond_opt_value *newval); |
73 | static int bond_option_mode_set(struct bonding *bond, |
74 | const struct bond_opt_value *newval); |
75 | static int bond_option_slaves_set(struct bonding *bond, |
76 | const struct bond_opt_value *newval); |
77 | static int bond_option_tlb_dynamic_lb_set(struct bonding *bond, |
78 | const struct bond_opt_value *newval); |
79 | static int bond_option_ad_actor_sys_prio_set(struct bonding *bond, |
80 | const struct bond_opt_value *newval); |
81 | static int bond_option_ad_actor_system_set(struct bonding *bond, |
82 | const struct bond_opt_value *newval); |
83 | static int bond_option_ad_user_port_key_set(struct bonding *bond, |
84 | const struct bond_opt_value *newval); |
85 | static int bond_option_missed_max_set(struct bonding *bond, |
86 | const struct bond_opt_value *newval); |
87 | static int bond_option_coupled_control_set(struct bonding *bond, |
88 | const struct bond_opt_value *newval); |
89 | |
90 | static const struct bond_opt_value bond_mode_tbl[] = { |
91 | { "balance-rr" , BOND_MODE_ROUNDROBIN, BOND_VALFLAG_DEFAULT}, |
92 | { "active-backup" , BOND_MODE_ACTIVEBACKUP, 0}, |
93 | { "balance-xor" , BOND_MODE_XOR, 0}, |
94 | { "broadcast" , BOND_MODE_BROADCAST, 0}, |
95 | { "802.3ad" , BOND_MODE_8023AD, 0}, |
96 | { "balance-tlb" , BOND_MODE_TLB, 0}, |
97 | { "balance-alb" , BOND_MODE_ALB, 0}, |
98 | { NULL, -1, 0}, |
99 | }; |
100 | |
101 | static const struct bond_opt_value bond_pps_tbl[] = { |
102 | { "default" , 1, BOND_VALFLAG_DEFAULT}, |
103 | { "maxval" , USHRT_MAX, BOND_VALFLAG_MAX}, |
104 | { NULL, -1, 0}, |
105 | }; |
106 | |
107 | static const struct bond_opt_value bond_xmit_hashtype_tbl[] = { |
108 | { "layer2" , BOND_XMIT_POLICY_LAYER2, BOND_VALFLAG_DEFAULT}, |
109 | { "layer3+4" , BOND_XMIT_POLICY_LAYER34, 0}, |
110 | { "layer2+3" , BOND_XMIT_POLICY_LAYER23, 0}, |
111 | { "encap2+3" , BOND_XMIT_POLICY_ENCAP23, 0}, |
112 | { "encap3+4" , BOND_XMIT_POLICY_ENCAP34, 0}, |
113 | { "vlan+srcmac" , BOND_XMIT_POLICY_VLAN_SRCMAC, 0}, |
114 | { NULL, -1, 0}, |
115 | }; |
116 | |
117 | static const struct bond_opt_value bond_arp_validate_tbl[] = { |
118 | { "none" , BOND_ARP_VALIDATE_NONE, BOND_VALFLAG_DEFAULT}, |
119 | { "active" , BOND_ARP_VALIDATE_ACTIVE, 0}, |
120 | { "backup" , BOND_ARP_VALIDATE_BACKUP, 0}, |
121 | { "all" , BOND_ARP_VALIDATE_ALL, 0}, |
122 | { "filter" , BOND_ARP_FILTER, 0}, |
123 | { "filter_active" , BOND_ARP_FILTER_ACTIVE, 0}, |
124 | { "filter_backup" , BOND_ARP_FILTER_BACKUP, 0}, |
125 | { NULL, -1, 0}, |
126 | }; |
127 | |
128 | static const struct bond_opt_value bond_arp_all_targets_tbl[] = { |
129 | { "any" , BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT}, |
130 | { "all" , BOND_ARP_TARGETS_ALL, 0}, |
131 | { NULL, -1, 0}, |
132 | }; |
133 | |
134 | static const struct bond_opt_value bond_fail_over_mac_tbl[] = { |
135 | { "none" , BOND_FOM_NONE, BOND_VALFLAG_DEFAULT}, |
136 | { "active" , BOND_FOM_ACTIVE, 0}, |
137 | { "follow" , BOND_FOM_FOLLOW, 0}, |
138 | { NULL, -1, 0}, |
139 | }; |
140 | |
141 | static const struct bond_opt_value bond_intmax_tbl[] = { |
142 | { "off" , 0, BOND_VALFLAG_DEFAULT}, |
143 | { "maxval" , INT_MAX, BOND_VALFLAG_MAX}, |
144 | { NULL, -1, 0} |
145 | }; |
146 | |
147 | static const struct bond_opt_value bond_lacp_active[] = { |
148 | { "off" , 0, 0}, |
149 | { "on" , 1, BOND_VALFLAG_DEFAULT}, |
150 | { NULL, -1, 0} |
151 | }; |
152 | |
153 | static const struct bond_opt_value bond_lacp_rate_tbl[] = { |
154 | { "slow" , AD_LACP_SLOW, 0}, |
155 | { "fast" , AD_LACP_FAST, 0}, |
156 | { NULL, -1, 0}, |
157 | }; |
158 | |
159 | static const struct bond_opt_value bond_ad_select_tbl[] = { |
160 | { "stable" , BOND_AD_STABLE, BOND_VALFLAG_DEFAULT}, |
161 | { "bandwidth" , BOND_AD_BANDWIDTH, 0}, |
162 | { "count" , BOND_AD_COUNT, 0}, |
163 | { NULL, -1, 0}, |
164 | }; |
165 | |
166 | static const struct bond_opt_value bond_num_peer_notif_tbl[] = { |
167 | { "off" , 0, 0}, |
168 | { "maxval" , 255, BOND_VALFLAG_MAX}, |
169 | { "default" , 1, BOND_VALFLAG_DEFAULT}, |
170 | { NULL, -1, 0} |
171 | }; |
172 | |
173 | static const struct bond_opt_value bond_peer_notif_delay_tbl[] = { |
174 | { "off" , 0, 0}, |
175 | { "maxval" , 300000, BOND_VALFLAG_MAX}, |
176 | { NULL, -1, 0} |
177 | }; |
178 | |
179 | static const struct bond_opt_value bond_primary_reselect_tbl[] = { |
180 | { "always" , BOND_PRI_RESELECT_ALWAYS, BOND_VALFLAG_DEFAULT}, |
181 | { "better" , BOND_PRI_RESELECT_BETTER, 0}, |
182 | { "failure" , BOND_PRI_RESELECT_FAILURE, 0}, |
183 | { NULL, -1}, |
184 | }; |
185 | |
186 | static const struct bond_opt_value bond_use_carrier_tbl[] = { |
187 | { "off" , 0, 0}, |
188 | { "on" , 1, BOND_VALFLAG_DEFAULT}, |
189 | { NULL, -1, 0} |
190 | }; |
191 | |
192 | static const struct bond_opt_value bond_all_slaves_active_tbl[] = { |
193 | { "off" , 0, BOND_VALFLAG_DEFAULT}, |
194 | { "on" , 1, 0}, |
195 | { NULL, -1, 0} |
196 | }; |
197 | |
198 | static const struct bond_opt_value bond_resend_igmp_tbl[] = { |
199 | { "off" , 0, 0}, |
200 | { "maxval" , 255, BOND_VALFLAG_MAX}, |
201 | { "default" , 1, BOND_VALFLAG_DEFAULT}, |
202 | { NULL, -1, 0} |
203 | }; |
204 | |
205 | static const struct bond_opt_value bond_lp_interval_tbl[] = { |
206 | { "minval" , 1, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT}, |
207 | { "maxval" , INT_MAX, BOND_VALFLAG_MAX}, |
208 | { NULL, -1, 0}, |
209 | }; |
210 | |
211 | static const struct bond_opt_value bond_tlb_dynamic_lb_tbl[] = { |
212 | { "off" , 0, 0}, |
213 | { "on" , 1, BOND_VALFLAG_DEFAULT}, |
214 | { NULL, -1, 0} |
215 | }; |
216 | |
217 | static const struct bond_opt_value bond_ad_actor_sys_prio_tbl[] = { |
218 | { "minval" , 1, BOND_VALFLAG_MIN}, |
219 | { "maxval" , 65535, BOND_VALFLAG_MAX | BOND_VALFLAG_DEFAULT}, |
220 | { NULL, -1, 0}, |
221 | }; |
222 | |
223 | static const struct bond_opt_value bond_ad_user_port_key_tbl[] = { |
224 | { "minval" , 0, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT}, |
225 | { "maxval" , 1023, BOND_VALFLAG_MAX}, |
226 | { NULL, -1, 0}, |
227 | }; |
228 | |
229 | static const struct bond_opt_value bond_missed_max_tbl[] = { |
230 | { "minval" , 1, BOND_VALFLAG_MIN}, |
231 | { "maxval" , 255, BOND_VALFLAG_MAX}, |
232 | { "default" , 2, BOND_VALFLAG_DEFAULT}, |
233 | { NULL, -1, 0}, |
234 | }; |
235 | |
236 | static const struct bond_opt_value bond_coupled_control_tbl[] = { |
237 | { "on" , 1, BOND_VALFLAG_DEFAULT}, |
238 | { "off" , 0, 0}, |
239 | { NULL, -1, 0}, |
240 | }; |
241 | |
242 | static const struct bond_option bond_opts[BOND_OPT_LAST] = { |
243 | [BOND_OPT_MODE] = { |
244 | .id = BOND_OPT_MODE, |
245 | .name = "mode" , |
246 | .desc = "bond device mode" , |
247 | .flags = BOND_OPTFLAG_NOSLAVES | BOND_OPTFLAG_IFDOWN, |
248 | .values = bond_mode_tbl, |
249 | .set = bond_option_mode_set |
250 | }, |
251 | [BOND_OPT_PACKETS_PER_SLAVE] = { |
252 | .id = BOND_OPT_PACKETS_PER_SLAVE, |
253 | .name = "packets_per_slave" , |
254 | .desc = "Packets to send per slave in RR mode" , |
255 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ROUNDROBIN)), |
256 | .values = bond_pps_tbl, |
257 | .set = bond_option_pps_set |
258 | }, |
259 | [BOND_OPT_XMIT_HASH] = { |
260 | .id = BOND_OPT_XMIT_HASH, |
261 | .name = "xmit_hash_policy" , |
262 | .desc = "balance-xor, 802.3ad, and tlb hashing method" , |
263 | .values = bond_xmit_hashtype_tbl, |
264 | .set = bond_option_xmit_hash_policy_set |
265 | }, |
266 | [BOND_OPT_ARP_VALIDATE] = { |
267 | .id = BOND_OPT_ARP_VALIDATE, |
268 | .name = "arp_validate" , |
269 | .desc = "validate src/dst of ARP probes" , |
270 | .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) | |
271 | BIT(BOND_MODE_ALB), |
272 | .values = bond_arp_validate_tbl, |
273 | .set = bond_option_arp_validate_set |
274 | }, |
275 | [BOND_OPT_ARP_ALL_TARGETS] = { |
276 | .id = BOND_OPT_ARP_ALL_TARGETS, |
277 | .name = "arp_all_targets" , |
278 | .desc = "fail on any/all arp targets timeout" , |
279 | .values = bond_arp_all_targets_tbl, |
280 | .set = bond_option_arp_all_targets_set |
281 | }, |
282 | [BOND_OPT_FAIL_OVER_MAC] = { |
283 | .id = BOND_OPT_FAIL_OVER_MAC, |
284 | .name = "fail_over_mac" , |
285 | .desc = "For active-backup, do not set all slaves to the same MAC" , |
286 | .flags = BOND_OPTFLAG_NOSLAVES, |
287 | .values = bond_fail_over_mac_tbl, |
288 | .set = bond_option_fail_over_mac_set |
289 | }, |
290 | [BOND_OPT_ARP_INTERVAL] = { |
291 | .id = BOND_OPT_ARP_INTERVAL, |
292 | .name = "arp_interval" , |
293 | .desc = "arp interval in milliseconds" , |
294 | .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) | |
295 | BIT(BOND_MODE_ALB), |
296 | .values = bond_intmax_tbl, |
297 | .set = bond_option_arp_interval_set |
298 | }, |
299 | [BOND_OPT_MISSED_MAX] = { |
300 | .id = BOND_OPT_MISSED_MAX, |
301 | .name = "arp_missed_max" , |
302 | .desc = "Maximum number of missed ARP interval" , |
303 | .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) | |
304 | BIT(BOND_MODE_ALB), |
305 | .values = bond_missed_max_tbl, |
306 | .set = bond_option_missed_max_set |
307 | }, |
308 | [BOND_OPT_ARP_TARGETS] = { |
309 | .id = BOND_OPT_ARP_TARGETS, |
310 | .name = "arp_ip_target" , |
311 | .desc = "arp targets in n.n.n.n form" , |
312 | .flags = BOND_OPTFLAG_RAWVAL, |
313 | .set = bond_option_arp_ip_targets_set |
314 | }, |
315 | [BOND_OPT_NS_TARGETS] = { |
316 | .id = BOND_OPT_NS_TARGETS, |
317 | .name = "ns_ip6_target" , |
318 | .desc = "NS targets in ffff:ffff::ffff:ffff form" , |
319 | .flags = BOND_OPTFLAG_RAWVAL, |
320 | .set = bond_option_ns_ip6_targets_set |
321 | }, |
322 | [BOND_OPT_DOWNDELAY] = { |
323 | .id = BOND_OPT_DOWNDELAY, |
324 | .name = "downdelay" , |
325 | .desc = "Delay before considering link down, in milliseconds" , |
326 | .values = bond_intmax_tbl, |
327 | .set = bond_option_downdelay_set |
328 | }, |
329 | [BOND_OPT_UPDELAY] = { |
330 | .id = BOND_OPT_UPDELAY, |
331 | .name = "updelay" , |
332 | .desc = "Delay before considering link up, in milliseconds" , |
333 | .values = bond_intmax_tbl, |
334 | .set = bond_option_updelay_set |
335 | }, |
336 | [BOND_OPT_LACP_ACTIVE] = { |
337 | .id = BOND_OPT_LACP_ACTIVE, |
338 | .name = "lacp_active" , |
339 | .desc = "Send LACPDU frames with configured lacp rate or acts as speak when spoken to" , |
340 | .flags = BOND_OPTFLAG_IFDOWN, |
341 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), |
342 | .values = bond_lacp_active, |
343 | .set = bond_option_lacp_active_set |
344 | }, |
345 | [BOND_OPT_LACP_RATE] = { |
346 | .id = BOND_OPT_LACP_RATE, |
347 | .name = "lacp_rate" , |
348 | .desc = "LACPDU tx rate to request from 802.3ad partner" , |
349 | .flags = BOND_OPTFLAG_IFDOWN, |
350 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), |
351 | .values = bond_lacp_rate_tbl, |
352 | .set = bond_option_lacp_rate_set |
353 | }, |
354 | [BOND_OPT_MINLINKS] = { |
355 | .id = BOND_OPT_MINLINKS, |
356 | .name = "min_links" , |
357 | .desc = "Minimum number of available links before turning on carrier" , |
358 | .values = bond_intmax_tbl, |
359 | .set = bond_option_min_links_set |
360 | }, |
361 | [BOND_OPT_AD_SELECT] = { |
362 | .id = BOND_OPT_AD_SELECT, |
363 | .name = "ad_select" , |
364 | .desc = "803.ad aggregation selection logic" , |
365 | .flags = BOND_OPTFLAG_IFDOWN, |
366 | .values = bond_ad_select_tbl, |
367 | .set = bond_option_ad_select_set |
368 | }, |
369 | [BOND_OPT_NUM_PEER_NOTIF] = { |
370 | .id = BOND_OPT_NUM_PEER_NOTIF, |
371 | .name = "num_unsol_na" , |
372 | .desc = "Number of peer notifications to send on failover event" , |
373 | .values = bond_num_peer_notif_tbl, |
374 | .set = bond_option_num_peer_notif_set |
375 | }, |
376 | [BOND_OPT_MIIMON] = { |
377 | .id = BOND_OPT_MIIMON, |
378 | .name = "miimon" , |
379 | .desc = "Link check interval in milliseconds" , |
380 | .values = bond_intmax_tbl, |
381 | .set = bond_option_miimon_set |
382 | }, |
383 | [BOND_OPT_PRIO] = { |
384 | .id = BOND_OPT_PRIO, |
385 | .name = "prio" , |
386 | .desc = "Link priority for failover re-selection" , |
387 | .flags = BOND_OPTFLAG_RAWVAL, |
388 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | |
389 | BIT(BOND_MODE_TLB) | |
390 | BIT(BOND_MODE_ALB)), |
391 | .set = bond_option_prio_set |
392 | }, |
393 | [BOND_OPT_PRIMARY] = { |
394 | .id = BOND_OPT_PRIMARY, |
395 | .name = "primary" , |
396 | .desc = "Primary network device to use" , |
397 | .flags = BOND_OPTFLAG_RAWVAL, |
398 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | |
399 | BIT(BOND_MODE_TLB) | |
400 | BIT(BOND_MODE_ALB)), |
401 | .set = bond_option_primary_set |
402 | }, |
403 | [BOND_OPT_PRIMARY_RESELECT] = { |
404 | .id = BOND_OPT_PRIMARY_RESELECT, |
405 | .name = "primary_reselect" , |
406 | .desc = "Reselect primary slave once it comes up" , |
407 | .values = bond_primary_reselect_tbl, |
408 | .set = bond_option_primary_reselect_set |
409 | }, |
410 | [BOND_OPT_USE_CARRIER] = { |
411 | .id = BOND_OPT_USE_CARRIER, |
412 | .name = "use_carrier" , |
413 | .desc = "Use netif_carrier_ok (vs MII ioctls) in miimon" , |
414 | .values = bond_use_carrier_tbl, |
415 | .set = bond_option_use_carrier_set |
416 | }, |
417 | [BOND_OPT_ACTIVE_SLAVE] = { |
418 | .id = BOND_OPT_ACTIVE_SLAVE, |
419 | .name = "active_slave" , |
420 | .desc = "Currently active slave" , |
421 | .flags = BOND_OPTFLAG_RAWVAL, |
422 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | |
423 | BIT(BOND_MODE_TLB) | |
424 | BIT(BOND_MODE_ALB)), |
425 | .set = bond_option_active_slave_set |
426 | }, |
427 | [BOND_OPT_QUEUE_ID] = { |
428 | .id = BOND_OPT_QUEUE_ID, |
429 | .name = "queue_id" , |
430 | .desc = "Set queue id of a slave" , |
431 | .flags = BOND_OPTFLAG_RAWVAL, |
432 | .set = bond_option_queue_id_set |
433 | }, |
434 | [BOND_OPT_ALL_SLAVES_ACTIVE] = { |
435 | .id = BOND_OPT_ALL_SLAVES_ACTIVE, |
436 | .name = "all_slaves_active" , |
437 | .desc = "Keep all frames received on an interface by setting active flag for all slaves" , |
438 | .values = bond_all_slaves_active_tbl, |
439 | .set = bond_option_all_slaves_active_set |
440 | }, |
441 | [BOND_OPT_RESEND_IGMP] = { |
442 | .id = BOND_OPT_RESEND_IGMP, |
443 | .name = "resend_igmp" , |
444 | .desc = "Number of IGMP membership reports to send on link failure" , |
445 | .values = bond_resend_igmp_tbl, |
446 | .set = bond_option_resend_igmp_set |
447 | }, |
448 | [BOND_OPT_LP_INTERVAL] = { |
449 | .id = BOND_OPT_LP_INTERVAL, |
450 | .name = "lp_interval" , |
451 | .desc = "The number of seconds between instances where the bonding driver sends learning packets to each slave's peer switch" , |
452 | .values = bond_lp_interval_tbl, |
453 | .set = bond_option_lp_interval_set |
454 | }, |
455 | [BOND_OPT_SLAVES] = { |
456 | .id = BOND_OPT_SLAVES, |
457 | .name = "slaves" , |
458 | .desc = "Slave membership management" , |
459 | .flags = BOND_OPTFLAG_RAWVAL, |
460 | .set = bond_option_slaves_set |
461 | }, |
462 | [BOND_OPT_TLB_DYNAMIC_LB] = { |
463 | .id = BOND_OPT_TLB_DYNAMIC_LB, |
464 | .name = "tlb_dynamic_lb" , |
465 | .desc = "Enable dynamic flow shuffling" , |
466 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_TLB) | BIT(BOND_MODE_ALB)), |
467 | .values = bond_tlb_dynamic_lb_tbl, |
468 | .flags = BOND_OPTFLAG_IFDOWN, |
469 | .set = bond_option_tlb_dynamic_lb_set, |
470 | }, |
471 | [BOND_OPT_AD_ACTOR_SYS_PRIO] = { |
472 | .id = BOND_OPT_AD_ACTOR_SYS_PRIO, |
473 | .name = "ad_actor_sys_prio" , |
474 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), |
475 | .values = bond_ad_actor_sys_prio_tbl, |
476 | .set = bond_option_ad_actor_sys_prio_set, |
477 | }, |
478 | [BOND_OPT_AD_ACTOR_SYSTEM] = { |
479 | .id = BOND_OPT_AD_ACTOR_SYSTEM, |
480 | .name = "ad_actor_system" , |
481 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), |
482 | .flags = BOND_OPTFLAG_RAWVAL, |
483 | .set = bond_option_ad_actor_system_set, |
484 | }, |
485 | [BOND_OPT_AD_USER_PORT_KEY] = { |
486 | .id = BOND_OPT_AD_USER_PORT_KEY, |
487 | .name = "ad_user_port_key" , |
488 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), |
489 | .flags = BOND_OPTFLAG_IFDOWN, |
490 | .values = bond_ad_user_port_key_tbl, |
491 | .set = bond_option_ad_user_port_key_set, |
492 | }, |
493 | [BOND_OPT_NUM_PEER_NOTIF_ALIAS] = { |
494 | .id = BOND_OPT_NUM_PEER_NOTIF_ALIAS, |
495 | .name = "num_grat_arp" , |
496 | .desc = "Number of peer notifications to send on failover event" , |
497 | .values = bond_num_peer_notif_tbl, |
498 | .set = bond_option_num_peer_notif_set |
499 | }, |
500 | [BOND_OPT_PEER_NOTIF_DELAY] = { |
501 | .id = BOND_OPT_PEER_NOTIF_DELAY, |
502 | .name = "peer_notif_delay" , |
503 | .desc = "Delay between each peer notification on failover event, in milliseconds" , |
504 | .values = bond_peer_notif_delay_tbl, |
505 | .set = bond_option_peer_notif_delay_set |
506 | }, |
507 | [BOND_OPT_COUPLED_CONTROL] = { |
508 | .id = BOND_OPT_COUPLED_CONTROL, |
509 | .name = "coupled_control" , |
510 | .desc = "Opt into using coupled control MUX for LACP states" , |
511 | .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), |
512 | .flags = BOND_OPTFLAG_IFDOWN, |
513 | .values = bond_coupled_control_tbl, |
514 | .set = bond_option_coupled_control_set, |
515 | } |
516 | }; |
517 | |
518 | /* Searches for an option by name */ |
519 | const struct bond_option *bond_opt_get_by_name(const char *name) |
520 | { |
521 | const struct bond_option *opt; |
522 | int option; |
523 | |
524 | for (option = 0; option < BOND_OPT_LAST; option++) { |
525 | opt = bond_opt_get(option); |
526 | if (opt && !strcmp(opt->name, name)) |
527 | return opt; |
528 | } |
529 | |
530 | return NULL; |
531 | } |
532 | |
533 | /* Searches for a value in opt's values[] table */ |
534 | const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val) |
535 | { |
536 | const struct bond_option *opt; |
537 | int i; |
538 | |
539 | opt = bond_opt_get(option); |
540 | if (WARN_ON(!opt)) |
541 | return NULL; |
542 | for (i = 0; opt->values && opt->values[i].string; i++) |
543 | if (opt->values[i].value == val) |
544 | return &opt->values[i]; |
545 | |
546 | return NULL; |
547 | } |
548 | |
549 | /* Searches for a value in opt's values[] table which matches the flagmask */ |
550 | static const struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt, |
551 | u32 flagmask) |
552 | { |
553 | int i; |
554 | |
555 | for (i = 0; opt->values && opt->values[i].string; i++) |
556 | if (opt->values[i].flags & flagmask) |
557 | return &opt->values[i]; |
558 | |
559 | return NULL; |
560 | } |
561 | |
562 | /* If maxval is missing then there's no range to check. In case minval is |
563 | * missing then it's considered to be 0. |
564 | */ |
565 | static bool bond_opt_check_range(const struct bond_option *opt, u64 val) |
566 | { |
567 | const struct bond_opt_value *minval, *maxval; |
568 | |
569 | minval = bond_opt_get_flags(opt, flagmask: BOND_VALFLAG_MIN); |
570 | maxval = bond_opt_get_flags(opt, flagmask: BOND_VALFLAG_MAX); |
571 | if (!maxval || (minval && val < minval->value) || val > maxval->value) |
572 | return false; |
573 | |
574 | return true; |
575 | } |
576 | |
577 | /** |
578 | * bond_opt_parse - parse option value |
579 | * @opt: the option to parse against |
580 | * @val: value to parse |
581 | * |
582 | * This function tries to extract the value from @val and check if it's |
583 | * a possible match for the option and returns NULL if a match isn't found, |
584 | * or the struct_opt_value that matched. It also strips the new line from |
585 | * @val->string if it's present. |
586 | */ |
587 | const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt, |
588 | struct bond_opt_value *val) |
589 | { |
590 | char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, }; |
591 | const struct bond_opt_value *tbl; |
592 | const struct bond_opt_value *ret = NULL; |
593 | bool checkval; |
594 | int i, rv; |
595 | |
596 | /* No parsing if the option wants a raw val */ |
597 | if (opt->flags & BOND_OPTFLAG_RAWVAL) |
598 | return val; |
599 | |
600 | tbl = opt->values; |
601 | if (!tbl) |
602 | goto out; |
603 | |
604 | /* ULLONG_MAX is used to bypass string processing */ |
605 | checkval = val->value != ULLONG_MAX; |
606 | if (!checkval) { |
607 | if (!val->string) |
608 | goto out; |
609 | p = strchr(val->string, '\n'); |
610 | if (p) |
611 | *p = '\0'; |
612 | for (p = val->string; *p; p++) |
613 | if (!(isdigit(c: *p) || isspace(*p))) |
614 | break; |
615 | /* The following code extracts the string to match or the value |
616 | * and sets checkval appropriately |
617 | */ |
618 | if (*p) { |
619 | rv = sscanf(val->string, "%32s" , valstr); |
620 | } else { |
621 | rv = sscanf(val->string, "%llu" , &val->value); |
622 | checkval = true; |
623 | } |
624 | if (!rv) |
625 | goto out; |
626 | } |
627 | |
628 | for (i = 0; tbl[i].string; i++) { |
629 | /* Check for exact match */ |
630 | if (checkval) { |
631 | if (val->value == tbl[i].value) |
632 | ret = &tbl[i]; |
633 | } else { |
634 | if (!strcmp(valstr, "default" ) && |
635 | (tbl[i].flags & BOND_VALFLAG_DEFAULT)) |
636 | ret = &tbl[i]; |
637 | |
638 | if (!strcmp(valstr, tbl[i].string)) |
639 | ret = &tbl[i]; |
640 | } |
641 | /* Found an exact match */ |
642 | if (ret) |
643 | goto out; |
644 | } |
645 | /* Possible range match */ |
646 | if (checkval && bond_opt_check_range(opt, val: val->value)) |
647 | ret = val; |
648 | out: |
649 | return ret; |
650 | } |
651 | |
652 | /* Check opt's dependencies against bond mode and currently set options */ |
653 | static int bond_opt_check_deps(struct bonding *bond, |
654 | const struct bond_option *opt) |
655 | { |
656 | struct bond_params *params = &bond->params; |
657 | |
658 | if (test_bit(params->mode, &opt->unsuppmodes)) |
659 | return -EACCES; |
660 | if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond)) |
661 | return -ENOTEMPTY; |
662 | if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP)) |
663 | return -EBUSY; |
664 | |
665 | return 0; |
666 | } |
667 | |
668 | static void bond_opt_dep_print(struct bonding *bond, |
669 | const struct bond_option *opt, |
670 | struct nlattr *bad_attr, |
671 | struct netlink_ext_ack *extack) |
672 | { |
673 | const struct bond_opt_value *modeval; |
674 | struct bond_params *params; |
675 | |
676 | params = &bond->params; |
677 | modeval = bond_opt_get_val(option: BOND_OPT_MODE, val: params->mode); |
678 | if (test_bit(params->mode, &opt->unsuppmodes)) { |
679 | netdev_err(dev: bond->dev, format: "option %s: mode dependency failed, not supported in mode %s(%llu)\n" , |
680 | opt->name, modeval->string, modeval->value); |
681 | NL_SET_ERR_MSG_ATTR(extack, bad_attr, |
682 | "option not supported in mode" ); |
683 | } |
684 | } |
685 | |
686 | static void bond_opt_error_interpret(struct bonding *bond, |
687 | const struct bond_option *opt, |
688 | int error, const struct bond_opt_value *val, |
689 | struct nlattr *bad_attr, |
690 | struct netlink_ext_ack *extack) |
691 | { |
692 | const struct bond_opt_value *minval, *maxval; |
693 | char *p; |
694 | |
695 | switch (error) { |
696 | case -EINVAL: |
697 | NL_SET_ERR_MSG_ATTR(extack, bad_attr, "invalid option value" ); |
698 | if (val) { |
699 | if (val->string) { |
700 | /* sometimes RAWVAL opts may have new lines */ |
701 | p = strchr(val->string, '\n'); |
702 | if (p) |
703 | *p = '\0'; |
704 | netdev_err(dev: bond->dev, format: "option %s: invalid value (%s)\n" , |
705 | opt->name, val->string); |
706 | } else { |
707 | netdev_err(dev: bond->dev, format: "option %s: invalid value (%llu)\n" , |
708 | opt->name, val->value); |
709 | } |
710 | } |
711 | minval = bond_opt_get_flags(opt, flagmask: BOND_VALFLAG_MIN); |
712 | maxval = bond_opt_get_flags(opt, flagmask: BOND_VALFLAG_MAX); |
713 | if (!maxval) |
714 | break; |
715 | netdev_err(dev: bond->dev, format: "option %s: allowed values %llu - %llu\n" , |
716 | opt->name, minval ? minval->value : 0, maxval->value); |
717 | break; |
718 | case -EACCES: |
719 | bond_opt_dep_print(bond, opt, bad_attr, extack); |
720 | break; |
721 | case -ENOTEMPTY: |
722 | NL_SET_ERR_MSG_ATTR(extack, bad_attr, |
723 | "unable to set option because the bond device has slaves" ); |
724 | netdev_err(dev: bond->dev, format: "option %s: unable to set because the bond device has slaves\n" , |
725 | opt->name); |
726 | break; |
727 | case -EBUSY: |
728 | NL_SET_ERR_MSG_ATTR(extack, bad_attr, |
729 | "unable to set option because the bond is up" ); |
730 | netdev_err(dev: bond->dev, format: "option %s: unable to set because the bond device is up\n" , |
731 | opt->name); |
732 | break; |
733 | case -ENODEV: |
734 | if (val && val->string) { |
735 | p = strchr(val->string, '\n'); |
736 | if (p) |
737 | *p = '\0'; |
738 | netdev_err(dev: bond->dev, format: "option %s: interface %s does not exist!\n" , |
739 | opt->name, val->string); |
740 | NL_SET_ERR_MSG_ATTR(extack, bad_attr, |
741 | "interface does not exist" ); |
742 | } |
743 | break; |
744 | default: |
745 | break; |
746 | } |
747 | } |
748 | |
749 | /** |
750 | * __bond_opt_set - set a bonding option |
751 | * @bond: target bond device |
752 | * @option: option to set |
753 | * @val: value to set it to |
754 | * @bad_attr: netlink attribue that caused the error |
755 | * @extack: extended netlink error structure, used when an error message |
756 | * needs to be returned to the caller via netlink |
757 | * |
758 | * This function is used to change the bond's option value, it can be |
759 | * used for both enabling/changing an option and for disabling it. RTNL lock |
760 | * must be obtained before calling this function. |
761 | */ |
762 | int __bond_opt_set(struct bonding *bond, |
763 | unsigned int option, struct bond_opt_value *val, |
764 | struct nlattr *bad_attr, struct netlink_ext_ack *extack) |
765 | { |
766 | const struct bond_opt_value *retval = NULL; |
767 | const struct bond_option *opt; |
768 | int ret = -ENOENT; |
769 | |
770 | ASSERT_RTNL(); |
771 | |
772 | opt = bond_opt_get(option); |
773 | if (WARN_ON(!val) || WARN_ON(!opt)) |
774 | goto out; |
775 | ret = bond_opt_check_deps(bond, opt); |
776 | if (ret) |
777 | goto out; |
778 | retval = bond_opt_parse(opt, val); |
779 | if (!retval) { |
780 | ret = -EINVAL; |
781 | goto out; |
782 | } |
783 | ret = opt->set(bond, retval); |
784 | out: |
785 | if (ret) |
786 | bond_opt_error_interpret(bond, opt, error: ret, val, bad_attr, extack); |
787 | |
788 | return ret; |
789 | } |
790 | /** |
791 | * __bond_opt_set_notify - set a bonding option |
792 | * @bond: target bond device |
793 | * @option: option to set |
794 | * @val: value to set it to |
795 | * |
796 | * This function is used to change the bond's option value and trigger |
797 | * a notification to user sapce. It can be used for both enabling/changing |
798 | * an option and for disabling it. RTNL lock must be obtained before calling |
799 | * this function. |
800 | */ |
801 | int __bond_opt_set_notify(struct bonding *bond, |
802 | unsigned int option, struct bond_opt_value *val) |
803 | { |
804 | int ret; |
805 | |
806 | ASSERT_RTNL(); |
807 | |
808 | ret = __bond_opt_set(bond, option, val, NULL, NULL); |
809 | |
810 | if (!ret && (bond->dev->reg_state == NETREG_REGISTERED)) |
811 | call_netdevice_notifiers(val: NETDEV_CHANGEINFODATA, dev: bond->dev); |
812 | |
813 | return ret; |
814 | } |
815 | |
816 | /** |
817 | * bond_opt_tryset_rtnl - try to acquire rtnl and call __bond_opt_set |
818 | * @bond: target bond device |
819 | * @option: option to set |
820 | * @buf: value to set it to |
821 | * |
822 | * This function tries to acquire RTNL without blocking and if successful |
823 | * calls __bond_opt_set. It is mainly used for sysfs option manipulation. |
824 | */ |
825 | int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf) |
826 | { |
827 | struct bond_opt_value optval; |
828 | int ret; |
829 | |
830 | if (!rtnl_trylock()) |
831 | return restart_syscall(); |
832 | bond_opt_initstr(&optval, buf); |
833 | ret = __bond_opt_set_notify(bond, option, val: &optval); |
834 | rtnl_unlock(); |
835 | |
836 | return ret; |
837 | } |
838 | |
839 | /** |
840 | * bond_opt_get - get a pointer to an option |
841 | * @option: option for which to return a pointer |
842 | * |
843 | * This function checks if option is valid and if so returns a pointer |
844 | * to its entry in the bond_opts[] option array. |
845 | */ |
846 | const struct bond_option *bond_opt_get(unsigned int option) |
847 | { |
848 | if (!BOND_OPT_VALID(option)) |
849 | return NULL; |
850 | |
851 | return &bond_opts[option]; |
852 | } |
853 | |
854 | static bool bond_set_xfrm_features(struct bonding *bond) |
855 | { |
856 | if (!IS_ENABLED(CONFIG_XFRM_OFFLOAD)) |
857 | return false; |
858 | |
859 | if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) |
860 | bond->dev->wanted_features |= BOND_XFRM_FEATURES; |
861 | else |
862 | bond->dev->wanted_features &= ~BOND_XFRM_FEATURES; |
863 | |
864 | return true; |
865 | } |
866 | |
867 | static int bond_option_mode_set(struct bonding *bond, |
868 | const struct bond_opt_value *newval) |
869 | { |
870 | if (!bond_mode_uses_arp(mode: newval->value)) { |
871 | if (bond->params.arp_interval) { |
872 | netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n" , |
873 | newval->string); |
874 | /* disable arp monitoring */ |
875 | bond->params.arp_interval = 0; |
876 | } |
877 | |
878 | if (!bond->params.miimon) { |
879 | /* set miimon to default value */ |
880 | bond->params.miimon = BOND_DEFAULT_MIIMON; |
881 | netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n" , |
882 | bond->params.miimon); |
883 | } |
884 | } |
885 | |
886 | if (newval->value == BOND_MODE_ALB) |
887 | bond->params.tlb_dynamic_lb = 1; |
888 | |
889 | /* don't cache arp_validate between modes */ |
890 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; |
891 | bond->params.mode = newval->value; |
892 | |
893 | if (bond->dev->reg_state == NETREG_REGISTERED) { |
894 | bool update = false; |
895 | |
896 | update |= bond_set_xfrm_features(bond); |
897 | |
898 | if (update) |
899 | netdev_update_features(dev: bond->dev); |
900 | } |
901 | |
902 | bond_xdp_set_features(bond_dev: bond->dev); |
903 | |
904 | return 0; |
905 | } |
906 | |
907 | static int bond_option_active_slave_set(struct bonding *bond, |
908 | const struct bond_opt_value *newval) |
909 | { |
910 | char ifname[IFNAMSIZ] = { 0, }; |
911 | struct net_device *slave_dev; |
912 | int ret = 0; |
913 | |
914 | sscanf(newval->string, "%15s" , ifname); /* IFNAMSIZ */ |
915 | if (!strlen(ifname) || newval->string[0] == '\n') { |
916 | slave_dev = NULL; |
917 | } else { |
918 | slave_dev = __dev_get_by_name(net: dev_net(dev: bond->dev), name: ifname); |
919 | if (!slave_dev) |
920 | return -ENODEV; |
921 | } |
922 | |
923 | if (slave_dev) { |
924 | if (!netif_is_bond_slave(dev: slave_dev)) { |
925 | slave_err(bond->dev, slave_dev, "Device is not bonding slave\n" ); |
926 | return -EINVAL; |
927 | } |
928 | |
929 | if (bond->dev != netdev_master_upper_dev_get(dev: slave_dev)) { |
930 | slave_err(bond->dev, slave_dev, "Device is not our slave\n" ); |
931 | return -EINVAL; |
932 | } |
933 | } |
934 | |
935 | block_netpoll_tx(); |
936 | /* check to see if we are clearing active */ |
937 | if (!slave_dev) { |
938 | netdev_dbg(bond->dev, "Clearing current active slave\n" ); |
939 | RCU_INIT_POINTER(bond->curr_active_slave, NULL); |
940 | bond_select_active_slave(bond); |
941 | } else { |
942 | struct slave *old_active = rtnl_dereference(bond->curr_active_slave); |
943 | struct slave *new_active = bond_slave_get_rtnl(slave_dev); |
944 | |
945 | BUG_ON(!new_active); |
946 | |
947 | if (new_active == old_active) { |
948 | /* do nothing */ |
949 | slave_dbg(bond->dev, new_active->dev, "is already the current active slave\n" ); |
950 | } else { |
951 | if (old_active && (new_active->link == BOND_LINK_UP) && |
952 | bond_slave_is_up(slave: new_active)) { |
953 | slave_dbg(bond->dev, new_active->dev, "Setting as active slave\n" ); |
954 | bond_change_active_slave(bond, new_active); |
955 | } else { |
956 | slave_err(bond->dev, new_active->dev, "Could not set as active slave; either %s is down or the link is down\n" , |
957 | new_active->dev->name); |
958 | ret = -EINVAL; |
959 | } |
960 | } |
961 | } |
962 | unblock_netpoll_tx(); |
963 | |
964 | return ret; |
965 | } |
966 | |
967 | /* There are two tricky bits here. First, if MII monitoring is activated, then |
968 | * we must disable ARP monitoring. Second, if the timer isn't running, we must |
969 | * start it. |
970 | */ |
971 | static int bond_option_miimon_set(struct bonding *bond, |
972 | const struct bond_opt_value *newval) |
973 | { |
974 | netdev_dbg(bond->dev, "Setting MII monitoring interval to %llu\n" , |
975 | newval->value); |
976 | bond->params.miimon = newval->value; |
977 | if (bond->params.updelay) |
978 | netdev_dbg(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\n" , |
979 | bond->params.updelay * bond->params.miimon); |
980 | if (bond->params.downdelay) |
981 | netdev_dbg(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon value\n" , |
982 | bond->params.downdelay * bond->params.miimon); |
983 | if (bond->params.peer_notif_delay) |
984 | netdev_dbg(bond->dev, "Note: Updating peer_notif_delay (to %d) since it is a multiple of the miimon value\n" , |
985 | bond->params.peer_notif_delay * bond->params.miimon); |
986 | if (newval->value && bond->params.arp_interval) { |
987 | netdev_dbg(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitoring...\n" ); |
988 | bond->params.arp_interval = 0; |
989 | if (bond->params.arp_validate) |
990 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; |
991 | } |
992 | if (bond->dev->flags & IFF_UP) { |
993 | /* If the interface is up, we may need to fire off |
994 | * the MII timer. If the interface is down, the |
995 | * timer will get fired off when the open function |
996 | * is called. |
997 | */ |
998 | if (!newval->value) { |
999 | cancel_delayed_work_sync(dwork: &bond->mii_work); |
1000 | } else { |
1001 | cancel_delayed_work_sync(dwork: &bond->arp_work); |
1002 | queue_delayed_work(wq: bond->wq, dwork: &bond->mii_work, delay: 0); |
1003 | } |
1004 | } |
1005 | |
1006 | return 0; |
1007 | } |
1008 | |
1009 | /* Set up, down and peer notification delays. These must be multiples |
1010 | * of the MII monitoring value, and are stored internally as the |
1011 | * multiplier. Thus, we must translate to MS for the real world. |
1012 | */ |
1013 | static int _bond_option_delay_set(struct bonding *bond, |
1014 | const struct bond_opt_value *newval, |
1015 | const char *name, |
1016 | int *target) |
1017 | { |
1018 | int value = newval->value; |
1019 | |
1020 | if (!bond->params.miimon) { |
1021 | netdev_err(dev: bond->dev, format: "Unable to set %s as MII monitoring is disabled\n" , |
1022 | name); |
1023 | return -EPERM; |
1024 | } |
1025 | if ((value % bond->params.miimon) != 0) { |
1026 | netdev_warn(dev: bond->dev, |
1027 | format: "%s (%d) is not a multiple of miimon (%d), value rounded to %d ms\n" , |
1028 | name, |
1029 | value, bond->params.miimon, |
1030 | (value / bond->params.miimon) * |
1031 | bond->params.miimon); |
1032 | } |
1033 | *target = value / bond->params.miimon; |
1034 | netdev_dbg(bond->dev, "Setting %s to %d\n" , |
1035 | name, |
1036 | *target * bond->params.miimon); |
1037 | |
1038 | return 0; |
1039 | } |
1040 | |
1041 | static int bond_option_updelay_set(struct bonding *bond, |
1042 | const struct bond_opt_value *newval) |
1043 | { |
1044 | return _bond_option_delay_set(bond, newval, name: "up delay" , |
1045 | target: &bond->params.updelay); |
1046 | } |
1047 | |
1048 | static int bond_option_downdelay_set(struct bonding *bond, |
1049 | const struct bond_opt_value *newval) |
1050 | { |
1051 | return _bond_option_delay_set(bond, newval, name: "down delay" , |
1052 | target: &bond->params.downdelay); |
1053 | } |
1054 | |
1055 | static int bond_option_peer_notif_delay_set(struct bonding *bond, |
1056 | const struct bond_opt_value *newval) |
1057 | { |
1058 | int ret = _bond_option_delay_set(bond, newval, |
1059 | name: "peer notification delay" , |
1060 | target: &bond->params.peer_notif_delay); |
1061 | return ret; |
1062 | } |
1063 | |
1064 | static int bond_option_use_carrier_set(struct bonding *bond, |
1065 | const struct bond_opt_value *newval) |
1066 | { |
1067 | netdev_dbg(bond->dev, "Setting use_carrier to %llu\n" , |
1068 | newval->value); |
1069 | bond->params.use_carrier = newval->value; |
1070 | |
1071 | return 0; |
1072 | } |
1073 | |
1074 | /* There are two tricky bits here. First, if ARP monitoring is activated, then |
1075 | * we must disable MII monitoring. Second, if the ARP timer isn't running, |
1076 | * we must start it. |
1077 | */ |
1078 | static int bond_option_arp_interval_set(struct bonding *bond, |
1079 | const struct bond_opt_value *newval) |
1080 | { |
1081 | netdev_dbg(bond->dev, "Setting ARP monitoring interval to %llu\n" , |
1082 | newval->value); |
1083 | bond->params.arp_interval = newval->value; |
1084 | if (newval->value) { |
1085 | if (bond->params.miimon) { |
1086 | netdev_dbg(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitoring\n" ); |
1087 | bond->params.miimon = 0; |
1088 | } |
1089 | if (!bond->params.arp_targets[0]) |
1090 | netdev_dbg(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n" ); |
1091 | } |
1092 | if (bond->dev->flags & IFF_UP) { |
1093 | /* If the interface is up, we may need to fire off |
1094 | * the ARP timer. If the interface is down, the |
1095 | * timer will get fired off when the open function |
1096 | * is called. |
1097 | */ |
1098 | if (!newval->value) { |
1099 | if (bond->params.arp_validate) |
1100 | bond->recv_probe = NULL; |
1101 | cancel_delayed_work_sync(dwork: &bond->arp_work); |
1102 | } else { |
1103 | /* arp_validate can be set only in active-backup mode */ |
1104 | bond->recv_probe = bond_rcv_validate; |
1105 | cancel_delayed_work_sync(dwork: &bond->mii_work); |
1106 | queue_delayed_work(wq: bond->wq, dwork: &bond->arp_work, delay: 0); |
1107 | } |
1108 | } |
1109 | |
1110 | return 0; |
1111 | } |
1112 | |
1113 | static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot, |
1114 | __be32 target, |
1115 | unsigned long last_rx) |
1116 | { |
1117 | __be32 *targets = bond->params.arp_targets; |
1118 | struct list_head *iter; |
1119 | struct slave *slave; |
1120 | |
1121 | if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) { |
1122 | bond_for_each_slave(bond, slave, iter) |
1123 | slave->target_last_arp_rx[slot] = last_rx; |
1124 | targets[slot] = target; |
1125 | } |
1126 | } |
1127 | |
1128 | static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) |
1129 | { |
1130 | __be32 *targets = bond->params.arp_targets; |
1131 | int ind; |
1132 | |
1133 | if (!bond_is_ip_target_ok(addr: target)) { |
1134 | netdev_err(dev: bond->dev, format: "invalid ARP target %pI4 specified for addition\n" , |
1135 | &target); |
1136 | return -EINVAL; |
1137 | } |
1138 | |
1139 | if (bond_get_targets_ip(targets, ip: target) != -1) { /* dup */ |
1140 | netdev_err(dev: bond->dev, format: "ARP target %pI4 is already present\n" , |
1141 | &target); |
1142 | return -EINVAL; |
1143 | } |
1144 | |
1145 | ind = bond_get_targets_ip(targets, ip: 0); /* first free slot */ |
1146 | if (ind == -1) { |
1147 | netdev_err(dev: bond->dev, format: "ARP target table is full!\n" ); |
1148 | return -EINVAL; |
1149 | } |
1150 | |
1151 | netdev_dbg(bond->dev, "Adding ARP target %pI4\n" , &target); |
1152 | |
1153 | _bond_options_arp_ip_target_set(bond, slot: ind, target, last_rx: jiffies); |
1154 | |
1155 | return 0; |
1156 | } |
1157 | |
1158 | static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target) |
1159 | { |
1160 | return _bond_option_arp_ip_target_add(bond, target); |
1161 | } |
1162 | |
1163 | static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target) |
1164 | { |
1165 | __be32 *targets = bond->params.arp_targets; |
1166 | struct list_head *iter; |
1167 | struct slave *slave; |
1168 | unsigned long *targets_rx; |
1169 | int ind, i; |
1170 | |
1171 | if (!bond_is_ip_target_ok(addr: target)) { |
1172 | netdev_err(dev: bond->dev, format: "invalid ARP target %pI4 specified for removal\n" , |
1173 | &target); |
1174 | return -EINVAL; |
1175 | } |
1176 | |
1177 | ind = bond_get_targets_ip(targets, ip: target); |
1178 | if (ind == -1) { |
1179 | netdev_err(dev: bond->dev, format: "unable to remove nonexistent ARP target %pI4\n" , |
1180 | &target); |
1181 | return -EINVAL; |
1182 | } |
1183 | |
1184 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
1185 | netdev_warn(dev: bond->dev, format: "Removing last arp target with arp_interval on\n" ); |
1186 | |
1187 | netdev_dbg(bond->dev, "Removing ARP target %pI4\n" , &target); |
1188 | |
1189 | bond_for_each_slave(bond, slave, iter) { |
1190 | targets_rx = slave->target_last_arp_rx; |
1191 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) |
1192 | targets_rx[i] = targets_rx[i+1]; |
1193 | targets_rx[i] = 0; |
1194 | } |
1195 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) |
1196 | targets[i] = targets[i+1]; |
1197 | targets[i] = 0; |
1198 | |
1199 | return 0; |
1200 | } |
1201 | |
1202 | void bond_option_arp_ip_targets_clear(struct bonding *bond) |
1203 | { |
1204 | int i; |
1205 | |
1206 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) |
1207 | _bond_options_arp_ip_target_set(bond, slot: i, target: 0, last_rx: 0); |
1208 | } |
1209 | |
1210 | static int bond_option_arp_ip_targets_set(struct bonding *bond, |
1211 | const struct bond_opt_value *newval) |
1212 | { |
1213 | int ret = -EPERM; |
1214 | __be32 target; |
1215 | |
1216 | if (newval->string) { |
1217 | if (!in4_pton(src: newval->string+1, srclen: -1, dst: (u8 *)&target, delim: -1, NULL)) { |
1218 | netdev_err(dev: bond->dev, format: "invalid ARP target %pI4 specified\n" , |
1219 | &target); |
1220 | return ret; |
1221 | } |
1222 | if (newval->string[0] == '+') |
1223 | ret = bond_option_arp_ip_target_add(bond, target); |
1224 | else if (newval->string[0] == '-') |
1225 | ret = bond_option_arp_ip_target_rem(bond, target); |
1226 | else |
1227 | netdev_err(dev: bond->dev, format: "no command found in arp_ip_targets file - use +<addr> or -<addr>\n" ); |
1228 | } else { |
1229 | target = newval->value; |
1230 | ret = bond_option_arp_ip_target_add(bond, target); |
1231 | } |
1232 | |
1233 | return ret; |
1234 | } |
1235 | |
1236 | #if IS_ENABLED(CONFIG_IPV6) |
1237 | static void _bond_options_ns_ip6_target_set(struct bonding *bond, int slot, |
1238 | struct in6_addr *target, |
1239 | unsigned long last_rx) |
1240 | { |
1241 | struct in6_addr *targets = bond->params.ns_targets; |
1242 | struct list_head *iter; |
1243 | struct slave *slave; |
1244 | |
1245 | if (slot >= 0 && slot < BOND_MAX_NS_TARGETS) { |
1246 | bond_for_each_slave(bond, slave, iter) |
1247 | slave->target_last_arp_rx[slot] = last_rx; |
1248 | targets[slot] = *target; |
1249 | } |
1250 | } |
1251 | |
1252 | void bond_option_ns_ip6_targets_clear(struct bonding *bond) |
1253 | { |
1254 | struct in6_addr addr_any = in6addr_any; |
1255 | int i; |
1256 | |
1257 | for (i = 0; i < BOND_MAX_NS_TARGETS; i++) |
1258 | _bond_options_ns_ip6_target_set(bond, slot: i, target: &addr_any, last_rx: 0); |
1259 | } |
1260 | |
1261 | static int bond_option_ns_ip6_targets_set(struct bonding *bond, |
1262 | const struct bond_opt_value *newval) |
1263 | { |
1264 | struct in6_addr *target = (struct in6_addr *)newval->extra; |
1265 | struct in6_addr *targets = bond->params.ns_targets; |
1266 | struct in6_addr addr_any = in6addr_any; |
1267 | int index; |
1268 | |
1269 | if (!bond_is_ip6_target_ok(addr: target)) { |
1270 | netdev_err(dev: bond->dev, format: "invalid NS target %pI6c specified for addition\n" , |
1271 | target); |
1272 | return -EINVAL; |
1273 | } |
1274 | |
1275 | if (bond_get_targets_ip6(targets, ip: target) != -1) { /* dup */ |
1276 | netdev_err(dev: bond->dev, format: "NS target %pI6c is already present\n" , |
1277 | target); |
1278 | return -EINVAL; |
1279 | } |
1280 | |
1281 | index = bond_get_targets_ip6(targets, ip: &addr_any); /* first free slot */ |
1282 | if (index == -1) { |
1283 | netdev_err(dev: bond->dev, format: "NS target table is full!\n" ); |
1284 | return -EINVAL; |
1285 | } |
1286 | |
1287 | netdev_dbg(bond->dev, "Adding NS target %pI6c\n" , target); |
1288 | |
1289 | _bond_options_ns_ip6_target_set(bond, slot: index, target, last_rx: jiffies); |
1290 | |
1291 | return 0; |
1292 | } |
1293 | #else |
1294 | static int bond_option_ns_ip6_targets_set(struct bonding *bond, |
1295 | const struct bond_opt_value *newval) |
1296 | { |
1297 | return -EPERM; |
1298 | } |
1299 | #endif |
1300 | |
1301 | static int bond_option_arp_validate_set(struct bonding *bond, |
1302 | const struct bond_opt_value *newval) |
1303 | { |
1304 | netdev_dbg(bond->dev, "Setting arp_validate to %s (%llu)\n" , |
1305 | newval->string, newval->value); |
1306 | bond->params.arp_validate = newval->value; |
1307 | |
1308 | return 0; |
1309 | } |
1310 | |
1311 | static int bond_option_arp_all_targets_set(struct bonding *bond, |
1312 | const struct bond_opt_value *newval) |
1313 | { |
1314 | netdev_dbg(bond->dev, "Setting arp_all_targets to %s (%llu)\n" , |
1315 | newval->string, newval->value); |
1316 | bond->params.arp_all_targets = newval->value; |
1317 | |
1318 | return 0; |
1319 | } |
1320 | |
1321 | static int bond_option_missed_max_set(struct bonding *bond, |
1322 | const struct bond_opt_value *newval) |
1323 | { |
1324 | netdev_dbg(bond->dev, "Setting missed max to %s (%llu)\n" , |
1325 | newval->string, newval->value); |
1326 | bond->params.missed_max = newval->value; |
1327 | |
1328 | return 0; |
1329 | } |
1330 | |
1331 | static int bond_option_prio_set(struct bonding *bond, |
1332 | const struct bond_opt_value *newval) |
1333 | { |
1334 | struct slave *slave; |
1335 | |
1336 | slave = bond_slave_get_rtnl(newval->slave_dev); |
1337 | if (!slave) { |
1338 | netdev_dbg(newval->slave_dev, "%s called on NULL slave\n" , __func__); |
1339 | return -ENODEV; |
1340 | } |
1341 | slave->prio = newval->value; |
1342 | |
1343 | if (rtnl_dereference(bond->primary_slave)) |
1344 | slave_warn(bond->dev, slave->dev, |
1345 | "prio updated, but will not affect failover re-selection as primary slave have been set\n" ); |
1346 | else |
1347 | bond_select_active_slave(bond); |
1348 | |
1349 | return 0; |
1350 | } |
1351 | |
1352 | static int bond_option_primary_set(struct bonding *bond, |
1353 | const struct bond_opt_value *newval) |
1354 | { |
1355 | char *p, *primary = newval->string; |
1356 | struct list_head *iter; |
1357 | struct slave *slave; |
1358 | |
1359 | block_netpoll_tx(); |
1360 | |
1361 | p = strchr(primary, '\n'); |
1362 | if (p) |
1363 | *p = '\0'; |
1364 | /* check to see if we are clearing primary */ |
1365 | if (!strlen(primary)) { |
1366 | netdev_dbg(bond->dev, "Setting primary slave to None\n" ); |
1367 | RCU_INIT_POINTER(bond->primary_slave, NULL); |
1368 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
1369 | bond_select_active_slave(bond); |
1370 | goto out; |
1371 | } |
1372 | |
1373 | bond_for_each_slave(bond, slave, iter) { |
1374 | if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) { |
1375 | slave_dbg(bond->dev, slave->dev, "Setting as primary slave\n" ); |
1376 | rcu_assign_pointer(bond->primary_slave, slave); |
1377 | strcpy(p: bond->params.primary, q: slave->dev->name); |
1378 | bond->force_primary = true; |
1379 | bond_select_active_slave(bond); |
1380 | goto out; |
1381 | } |
1382 | } |
1383 | |
1384 | if (rtnl_dereference(bond->primary_slave)) { |
1385 | netdev_dbg(bond->dev, "Setting primary slave to None\n" ); |
1386 | RCU_INIT_POINTER(bond->primary_slave, NULL); |
1387 | bond_select_active_slave(bond); |
1388 | } |
1389 | strscpy_pad(bond->params.primary, primary, IFNAMSIZ); |
1390 | |
1391 | netdev_dbg(bond->dev, "Recording %s as primary, but it has not been enslaved yet\n" , |
1392 | primary); |
1393 | |
1394 | out: |
1395 | unblock_netpoll_tx(); |
1396 | |
1397 | return 0; |
1398 | } |
1399 | |
1400 | static int bond_option_primary_reselect_set(struct bonding *bond, |
1401 | const struct bond_opt_value *newval) |
1402 | { |
1403 | netdev_dbg(bond->dev, "Setting primary_reselect to %s (%llu)\n" , |
1404 | newval->string, newval->value); |
1405 | bond->params.primary_reselect = newval->value; |
1406 | |
1407 | block_netpoll_tx(); |
1408 | bond_select_active_slave(bond); |
1409 | unblock_netpoll_tx(); |
1410 | |
1411 | return 0; |
1412 | } |
1413 | |
1414 | static int bond_option_fail_over_mac_set(struct bonding *bond, |
1415 | const struct bond_opt_value *newval) |
1416 | { |
1417 | netdev_dbg(bond->dev, "Setting fail_over_mac to %s (%llu)\n" , |
1418 | newval->string, newval->value); |
1419 | bond->params.fail_over_mac = newval->value; |
1420 | |
1421 | return 0; |
1422 | } |
1423 | |
1424 | static int bond_option_xmit_hash_policy_set(struct bonding *bond, |
1425 | const struct bond_opt_value *newval) |
1426 | { |
1427 | netdev_dbg(bond->dev, "Setting xmit hash policy to %s (%llu)\n" , |
1428 | newval->string, newval->value); |
1429 | bond->params.xmit_policy = newval->value; |
1430 | |
1431 | return 0; |
1432 | } |
1433 | |
1434 | static int bond_option_resend_igmp_set(struct bonding *bond, |
1435 | const struct bond_opt_value *newval) |
1436 | { |
1437 | netdev_dbg(bond->dev, "Setting resend_igmp to %llu\n" , |
1438 | newval->value); |
1439 | bond->params.resend_igmp = newval->value; |
1440 | |
1441 | return 0; |
1442 | } |
1443 | |
1444 | static int bond_option_num_peer_notif_set(struct bonding *bond, |
1445 | const struct bond_opt_value *newval) |
1446 | { |
1447 | bond->params.num_peer_notif = newval->value; |
1448 | |
1449 | return 0; |
1450 | } |
1451 | |
1452 | static int bond_option_all_slaves_active_set(struct bonding *bond, |
1453 | const struct bond_opt_value *newval) |
1454 | { |
1455 | struct list_head *iter; |
1456 | struct slave *slave; |
1457 | |
1458 | if (newval->value == bond->params.all_slaves_active) |
1459 | return 0; |
1460 | bond->params.all_slaves_active = newval->value; |
1461 | bond_for_each_slave(bond, slave, iter) { |
1462 | if (!bond_is_active_slave(slave)) { |
1463 | if (newval->value) |
1464 | slave->inactive = 0; |
1465 | else |
1466 | slave->inactive = 1; |
1467 | } |
1468 | } |
1469 | |
1470 | return 0; |
1471 | } |
1472 | |
1473 | static int bond_option_min_links_set(struct bonding *bond, |
1474 | const struct bond_opt_value *newval) |
1475 | { |
1476 | netdev_dbg(bond->dev, "Setting min links value to %llu\n" , |
1477 | newval->value); |
1478 | bond->params.min_links = newval->value; |
1479 | bond_set_carrier(bond); |
1480 | |
1481 | return 0; |
1482 | } |
1483 | |
1484 | static int bond_option_lp_interval_set(struct bonding *bond, |
1485 | const struct bond_opt_value *newval) |
1486 | { |
1487 | bond->params.lp_interval = newval->value; |
1488 | |
1489 | return 0; |
1490 | } |
1491 | |
1492 | static int bond_option_pps_set(struct bonding *bond, |
1493 | const struct bond_opt_value *newval) |
1494 | { |
1495 | netdev_dbg(bond->dev, "Setting packets per slave to %llu\n" , |
1496 | newval->value); |
1497 | bond->params.packets_per_slave = newval->value; |
1498 | if (newval->value > 0) { |
1499 | bond->params.reciprocal_packets_per_slave = |
1500 | reciprocal_value(d: newval->value); |
1501 | } else { |
1502 | /* reciprocal_packets_per_slave is unused if |
1503 | * packets_per_slave is 0 or 1, just initialize it |
1504 | */ |
1505 | bond->params.reciprocal_packets_per_slave = |
1506 | (struct reciprocal_value) { 0 }; |
1507 | } |
1508 | |
1509 | return 0; |
1510 | } |
1511 | |
1512 | static int bond_option_lacp_active_set(struct bonding *bond, |
1513 | const struct bond_opt_value *newval) |
1514 | { |
1515 | netdev_dbg(bond->dev, "Setting LACP active to %s (%llu)\n" , |
1516 | newval->string, newval->value); |
1517 | bond->params.lacp_active = newval->value; |
1518 | |
1519 | return 0; |
1520 | } |
1521 | |
1522 | static int bond_option_lacp_rate_set(struct bonding *bond, |
1523 | const struct bond_opt_value *newval) |
1524 | { |
1525 | netdev_dbg(bond->dev, "Setting LACP rate to %s (%llu)\n" , |
1526 | newval->string, newval->value); |
1527 | bond->params.lacp_fast = newval->value; |
1528 | bond_3ad_update_lacp_rate(bond); |
1529 | |
1530 | return 0; |
1531 | } |
1532 | |
1533 | static int bond_option_ad_select_set(struct bonding *bond, |
1534 | const struct bond_opt_value *newval) |
1535 | { |
1536 | netdev_dbg(bond->dev, "Setting ad_select to %s (%llu)\n" , |
1537 | newval->string, newval->value); |
1538 | bond->params.ad_select = newval->value; |
1539 | |
1540 | return 0; |
1541 | } |
1542 | |
1543 | static int bond_option_queue_id_set(struct bonding *bond, |
1544 | const struct bond_opt_value *newval) |
1545 | { |
1546 | struct slave *slave, *update_slave; |
1547 | struct net_device *sdev; |
1548 | struct list_head *iter; |
1549 | char *delim; |
1550 | int ret = 0; |
1551 | u16 qid; |
1552 | |
1553 | /* delim will point to queue id if successful */ |
1554 | delim = strchr(newval->string, ':'); |
1555 | if (!delim) |
1556 | goto err_no_cmd; |
1557 | |
1558 | /* Terminate string that points to device name and bump it |
1559 | * up one, so we can read the queue id there. |
1560 | */ |
1561 | *delim = '\0'; |
1562 | if (sscanf(++delim, "%hd\n" , &qid) != 1) |
1563 | goto err_no_cmd; |
1564 | |
1565 | /* Check buffer length, valid ifname and queue id */ |
1566 | if (!dev_valid_name(name: newval->string) || |
1567 | qid > bond->dev->real_num_tx_queues) |
1568 | goto err_no_cmd; |
1569 | |
1570 | /* Get the pointer to that interface if it exists */ |
1571 | sdev = __dev_get_by_name(net: dev_net(dev: bond->dev), name: newval->string); |
1572 | if (!sdev) |
1573 | goto err_no_cmd; |
1574 | |
1575 | /* Search for thes slave and check for duplicate qids */ |
1576 | update_slave = NULL; |
1577 | bond_for_each_slave(bond, slave, iter) { |
1578 | if (sdev == slave->dev) |
1579 | /* We don't need to check the matching |
1580 | * slave for dups, since we're overwriting it |
1581 | */ |
1582 | update_slave = slave; |
1583 | else if (qid && qid == slave->queue_id) { |
1584 | goto err_no_cmd; |
1585 | } |
1586 | } |
1587 | |
1588 | if (!update_slave) |
1589 | goto err_no_cmd; |
1590 | |
1591 | /* Actually set the qids for the slave */ |
1592 | update_slave->queue_id = qid; |
1593 | |
1594 | out: |
1595 | return ret; |
1596 | |
1597 | err_no_cmd: |
1598 | netdev_dbg(bond->dev, "invalid input for queue_id set\n" ); |
1599 | ret = -EPERM; |
1600 | goto out; |
1601 | |
1602 | } |
1603 | |
1604 | static int bond_option_slaves_set(struct bonding *bond, |
1605 | const struct bond_opt_value *newval) |
1606 | { |
1607 | char command[IFNAMSIZ + 1] = { 0, }; |
1608 | struct net_device *dev; |
1609 | char *ifname; |
1610 | int ret; |
1611 | |
1612 | sscanf(newval->string, "%16s" , command); /* IFNAMSIZ*/ |
1613 | ifname = command + 1; |
1614 | if ((strlen(command) <= 1) || |
1615 | (command[0] != '+' && command[0] != '-') || |
1616 | !dev_valid_name(name: ifname)) |
1617 | goto err_no_cmd; |
1618 | |
1619 | dev = __dev_get_by_name(net: dev_net(dev: bond->dev), name: ifname); |
1620 | if (!dev) { |
1621 | netdev_dbg(bond->dev, "interface %s does not exist!\n" , |
1622 | ifname); |
1623 | ret = -ENODEV; |
1624 | goto out; |
1625 | } |
1626 | |
1627 | switch (command[0]) { |
1628 | case '+': |
1629 | slave_dbg(bond->dev, dev, "Enslaving interface\n" ); |
1630 | ret = bond_enslave(bond_dev: bond->dev, slave_dev: dev, NULL); |
1631 | break; |
1632 | |
1633 | case '-': |
1634 | slave_dbg(bond->dev, dev, "Releasing interface\n" ); |
1635 | ret = bond_release(bond_dev: bond->dev, slave_dev: dev); |
1636 | break; |
1637 | |
1638 | default: |
1639 | /* should not run here. */ |
1640 | goto err_no_cmd; |
1641 | } |
1642 | |
1643 | out: |
1644 | return ret; |
1645 | |
1646 | err_no_cmd: |
1647 | netdev_err(dev: bond->dev, format: "no command found in slaves file - use +ifname or -ifname\n" ); |
1648 | ret = -EPERM; |
1649 | goto out; |
1650 | } |
1651 | |
1652 | static int bond_option_tlb_dynamic_lb_set(struct bonding *bond, |
1653 | const struct bond_opt_value *newval) |
1654 | { |
1655 | netdev_dbg(bond->dev, "Setting dynamic-lb to %s (%llu)\n" , |
1656 | newval->string, newval->value); |
1657 | bond->params.tlb_dynamic_lb = newval->value; |
1658 | |
1659 | return 0; |
1660 | } |
1661 | |
1662 | static int bond_option_ad_actor_sys_prio_set(struct bonding *bond, |
1663 | const struct bond_opt_value *newval) |
1664 | { |
1665 | netdev_dbg(bond->dev, "Setting ad_actor_sys_prio to %llu\n" , |
1666 | newval->value); |
1667 | |
1668 | bond->params.ad_actor_sys_prio = newval->value; |
1669 | bond_3ad_update_ad_actor_settings(bond); |
1670 | |
1671 | return 0; |
1672 | } |
1673 | |
1674 | static int bond_option_ad_actor_system_set(struct bonding *bond, |
1675 | const struct bond_opt_value *newval) |
1676 | { |
1677 | u8 macaddr[ETH_ALEN]; |
1678 | u8 *mac; |
1679 | |
1680 | if (newval->string) { |
1681 | if (!mac_pton(s: newval->string, mac: macaddr)) |
1682 | goto err; |
1683 | mac = macaddr; |
1684 | } else { |
1685 | mac = (u8 *)&newval->value; |
1686 | } |
1687 | |
1688 | if (is_multicast_ether_addr(addr: mac)) |
1689 | goto err; |
1690 | |
1691 | netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n" , mac); |
1692 | ether_addr_copy(dst: bond->params.ad_actor_system, src: mac); |
1693 | bond_3ad_update_ad_actor_settings(bond); |
1694 | |
1695 | return 0; |
1696 | |
1697 | err: |
1698 | netdev_err(dev: bond->dev, format: "Invalid ad_actor_system MAC address.\n" ); |
1699 | return -EINVAL; |
1700 | } |
1701 | |
1702 | static int bond_option_ad_user_port_key_set(struct bonding *bond, |
1703 | const struct bond_opt_value *newval) |
1704 | { |
1705 | netdev_dbg(bond->dev, "Setting ad_user_port_key to %llu\n" , |
1706 | newval->value); |
1707 | |
1708 | bond->params.ad_user_port_key = newval->value; |
1709 | return 0; |
1710 | } |
1711 | |
1712 | static int bond_option_coupled_control_set(struct bonding *bond, |
1713 | const struct bond_opt_value *newval) |
1714 | { |
1715 | netdev_info(dev: bond->dev, format: "Setting coupled_control to %s (%llu)\n" , |
1716 | newval->string, newval->value); |
1717 | |
1718 | bond->params.coupled_control = newval->value; |
1719 | return 0; |
1720 | } |
1721 | |