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