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bonding: add xdp_features support
[linux-block.git] / drivers / net / bonding / bond_options.c
CommitLineData
2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
72be35fe
JP		 2/*
3 * drivers/net/bond/bond_options.c - bonding options
4 * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
eecdaa6e 5 * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com>
72be35fe
JP		 6 */
7
72be35fe
JP		 8#include <linux/errno.h>
9#include <linux/if.h>
d9e32b21 10#include <linux/netdevice.h>
eb2d4c64 11#include <linux/spinlock.h>
d9e32b21 12#include <linux/rcupdate.h>
09117362 13#include <linux/ctype.h>
4fb0ef58 14#include <linux/inet.h>
174cd4b1
IM		 15#include <linux/sched/signal.h>
16
1ef8019b 17#include <net/bonding.h>
72be35fe 18
f3253339 19static int bond_option_active_slave_set(struct bonding *bond,
28f084cc 20 const struct bond_opt_value *newval);
f3253339 21static int bond_option_miimon_set(struct bonding *bond,
28f084cc 22 const struct bond_opt_value *newval);
f3253339 23static int bond_option_updelay_set(struct bonding *bond,
28f084cc 24 const struct bond_opt_value *newval);
f3253339 25static int bond_option_downdelay_set(struct bonding *bond,
28f084cc 26 const struct bond_opt_value *newval);
07a4ddec
VB		 27static int bond_option_peer_notif_delay_set(struct bonding *bond,
28 const struct bond_opt_value *newval);
f3253339 29static int bond_option_use_carrier_set(struct bonding *bond,
28f084cc 30 const struct bond_opt_value *newval);
f3253339 31static int bond_option_arp_interval_set(struct bonding *bond,
28f084cc 32 const struct bond_opt_value *newval);
f3253339 33static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target);
34static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target);
35static int bond_option_arp_ip_targets_set(struct bonding *bond,
28f084cc 36 const struct bond_opt_value *newval);
129e3c1b
HL		 37static int bond_option_ns_ip6_targets_set(struct bonding *bond,
38 const struct bond_opt_value *newval);
f3253339 39static int bond_option_arp_validate_set(struct bonding *bond,
28f084cc 40 const struct bond_opt_value *newval);
f3253339 41static int bond_option_arp_all_targets_set(struct bonding *bond,
28f084cc 42 const struct bond_opt_value *newval);
0a2ff7cc
HL		 43static int bond_option_prio_set(struct bonding *bond,
44 const struct bond_opt_value *newval);
f3253339 45static int bond_option_primary_set(struct bonding *bond,
28f084cc 46 const struct bond_opt_value *newval);
f3253339 47static int bond_option_primary_reselect_set(struct bonding *bond,
28f084cc 48 const struct bond_opt_value *newval);
f3253339 49static int bond_option_fail_over_mac_set(struct bonding *bond,
28f084cc 50 const struct bond_opt_value *newval);
f3253339 51static int bond_option_xmit_hash_policy_set(struct bonding *bond,
28f084cc 52 const struct bond_opt_value *newval);
f3253339 53static int bond_option_resend_igmp_set(struct bonding *bond,
28f084cc 54 const struct bond_opt_value *newval);
f3253339 55static int bond_option_num_peer_notif_set(struct bonding *bond,
28f084cc 56 const struct bond_opt_value *newval);
f3253339 57static int bond_option_all_slaves_active_set(struct bonding *bond,
28f084cc 58 const struct bond_opt_value *newval);
f3253339 59static int bond_option_min_links_set(struct bonding *bond,
28f084cc 60 const struct bond_opt_value *newval);
f3253339 61static int bond_option_lp_interval_set(struct bonding *bond,
28f084cc 62 const struct bond_opt_value *newval);
f3253339 63static int bond_option_pps_set(struct bonding *bond,
28f084cc 64 const struct bond_opt_value *newval);
3a755cd8
HL		 65static int bond_option_lacp_active_set(struct bonding *bond,
66 const struct bond_opt_value *newval);
f3253339 67static int bond_option_lacp_rate_set(struct bonding *bond,
28f084cc 68 const struct bond_opt_value *newval);
f3253339 69static int bond_option_ad_select_set(struct bonding *bond,
28f084cc 70 const struct bond_opt_value *newval);
f3253339 71static int bond_option_queue_id_set(struct bonding *bond,
28f084cc 72 const struct bond_opt_value *newval);
f3253339 73static int bond_option_mode_set(struct bonding *bond,
28f084cc 74 const struct bond_opt_value *newval);
f3253339 75static int bond_option_slaves_set(struct bonding *bond,
28f084cc 76 const struct bond_opt_value *newval);
e9f0fb88
MB		 77static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
78 const struct bond_opt_value *newval);
6791e466
MB		 79static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
80 const struct bond_opt_value *newval);
74514957
MB		 81static int bond_option_ad_actor_system_set(struct bonding *bond,
82 const struct bond_opt_value *newval);
d22a5fc0
MB		 83static int bond_option_ad_user_port_key_set(struct bonding *bond,
84 const struct bond_opt_value *newval);
5944b5ab
HL		 85static int bond_option_missed_max_set(struct bonding *bond,
86 const struct bond_opt_value *newval);
f3253339 87
88
89static const struct bond_opt_value bond_mode_tbl[] = {
2b3798d5
NA		 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
f3253339 100static const struct bond_opt_value bond_pps_tbl[] = {
aa59d851
NA		 101 { "default", 1, BOND_VALFLAG_DEFAULT},
102 { "maxval", USHRT_MAX, BOND_VALFLAG_MAX},
103 { NULL, -1, 0},
104};
105
f3253339 106static const struct bond_opt_value bond_xmit_hashtype_tbl[] = {
7b8fc010
JW		 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},
a4b32ce7
NA		 114};
115
f3253339 116static const struct bond_opt_value bond_arp_validate_tbl[] = {
896149ff
VF		 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},
16228881
NA		 125};
126
f3253339 127static const struct bond_opt_value bond_arp_all_targets_tbl[] = {
edf36b24
NA		 128 { "any", BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT},
129 { "all", BOND_ARP_TARGETS_ALL, 0},
130 { NULL, -1, 0},
131};
132
f3253339 133static const struct bond_opt_value bond_fail_over_mac_tbl[] = {
1df6b6aa
NA		 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
f3253339 140static const struct bond_opt_value bond_intmax_tbl[] = {
7bdb04ed
NA		 141 { "off", 0, BOND_VALFLAG_DEFAULT},
142 { "maxval", INT_MAX, BOND_VALFLAG_MAX},
81c70806 143 { NULL, -1, 0}
7bdb04ed
NA		 144};
145
3a755cd8
HL		 146static const struct bond_opt_value bond_lacp_active[] = {
147 { "off", 0, 0},
148 { "on", 1, BOND_VALFLAG_DEFAULT},
149 { NULL, -1, 0}
150};
151
f3253339 152static const struct bond_opt_value bond_lacp_rate_tbl[] = {
d3131de7
NA		 153 { "slow", AD_LACP_SLOW, 0},
154 { "fast", AD_LACP_FAST, 0},
155 { NULL, -1, 0},
156};
157
f3253339 158static const struct bond_opt_value bond_ad_select_tbl[] = {
9e5f5eeb
NA		 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
f3253339 165static const struct bond_opt_value bond_num_peer_notif_tbl[] = {
ef56becb
NA		 166 { "off", 0, 0},
167 { "maxval", 255, BOND_VALFLAG_MAX},
168 { "default", 1, BOND_VALFLAG_DEFAULT},
169 { NULL, -1, 0}
170};
171
f3253339 172static const struct bond_opt_value bond_primary_reselect_tbl[] = {
388d3a6d
NA		 173 { "always", BOND_PRI_RESELECT_ALWAYS, BOND_VALFLAG_DEFAULT},
174 { "better", BOND_PRI_RESELECT_BETTER, 0},
175 { "failure", BOND_PRI_RESELECT_FAILURE, 0},
176 { NULL, -1},
177};
178
f3253339 179static const struct bond_opt_value bond_use_carrier_tbl[] = {
b3c898e2
DB		 180 { "off", 0, 0},
181 { "on", 1, BOND_VALFLAG_DEFAULT},
182 { NULL, -1, 0}
0fff0608
NA		 183};
184
f3253339 185static const struct bond_opt_value bond_all_slaves_active_tbl[] = {
3df01162
NA		 186 { "off", 0, BOND_VALFLAG_DEFAULT},
187 { "on", 1, 0},
188 { NULL, -1, 0}
189};
190
f3253339 191static const struct bond_opt_value bond_resend_igmp_tbl[] = {
105c8fb6
NA		 192 { "off", 0, 0},
193 { "maxval", 255, BOND_VALFLAG_MAX},
194 { "default", 1, BOND_VALFLAG_DEFAULT},
195 { NULL, -1, 0}
196};
197
f3253339 198static const struct bond_opt_value bond_lp_interval_tbl[] = {
4325b374
NA		 199 { "minval", 1, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
200 { "maxval", INT_MAX, BOND_VALFLAG_MAX},
5bd4e4c1 201 { NULL, -1, 0},
4325b374
NA		 202};
203
e9f0fb88
MB		 204static const struct bond_opt_value bond_tlb_dynamic_lb_tbl[] = {
205 { "off", 0, 0},
206 { "on", 1, BOND_VALFLAG_DEFAULT},
207 { NULL, -1, 0}
208};
209
6791e466
MB		 210static const struct bond_opt_value bond_ad_actor_sys_prio_tbl[] = {
211 { "minval", 1, BOND_VALFLAG_MIN},
212 { "maxval", 65535, BOND_VALFLAG_MAX | BOND_VALFLAG_DEFAULT},
213 { NULL, -1, 0},
214};
215
d22a5fc0
MB		 216static const struct bond_opt_value bond_ad_user_port_key_tbl[] = {
217 { "minval", 0, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
218 { "maxval", 1023, BOND_VALFLAG_MAX},
219 { NULL, -1, 0},
220};
221
5944b5ab
HL		 222static const struct bond_opt_value bond_missed_max_tbl[] = {
223 { "minval", 1, BOND_VALFLAG_MIN},
224 { "maxval", 255, BOND_VALFLAG_MAX},
225 { "default", 2, BOND_VALFLAG_DEFAULT},
226 { NULL, -1, 0},
227};
228
7bfa0145 229static const struct bond_option bond_opts[BOND_OPT_LAST] = {
2b3798d5
NA		 230 [BOND_OPT_MODE] = {
231 .id = BOND_OPT_MODE,
232 .name = "mode",
233 .desc = "bond device mode",
234 .flags = BOND_OPTFLAG_NOSLAVES | BOND_OPTFLAG_IFDOWN,
235 .values = bond_mode_tbl,
236 .set = bond_option_mode_set
237 },
aa59d851
NA		 238 [BOND_OPT_PACKETS_PER_SLAVE] = {
239 .id = BOND_OPT_PACKETS_PER_SLAVE,
240 .name = "packets_per_slave",
241 .desc = "Packets to send per slave in RR mode",
242 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ROUNDROBIN)),
243 .values = bond_pps_tbl,
244 .set = bond_option_pps_set
245 },
a4b32ce7
NA		 246 [BOND_OPT_XMIT_HASH] = {
247 .id = BOND_OPT_XMIT_HASH,
248 .name = "xmit_hash_policy",
f05b42ea 249 .desc = "balance-xor, 802.3ad, and tlb hashing method",
a4b32ce7
NA		 250 .values = bond_xmit_hashtype_tbl,
251 .set = bond_option_xmit_hash_policy_set
252 },
16228881
NA		 253 [BOND_OPT_ARP_VALIDATE] = {
254 .id = BOND_OPT_ARP_VALIDATE,
255 .name = "arp_validate",
256 .desc = "validate src/dst of ARP probes",
13ac34a8
VF		 257 .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
258 BIT(BOND_MODE_ALB),
16228881
NA		 259 .values = bond_arp_validate_tbl,
260 .set = bond_option_arp_validate_set
261 },
edf36b24
NA		 262 [BOND_OPT_ARP_ALL_TARGETS] = {
263 .id = BOND_OPT_ARP_ALL_TARGETS,
264 .name = "arp_all_targets",
265 .desc = "fail on any/all arp targets timeout",
266 .values = bond_arp_all_targets_tbl,
267 .set = bond_option_arp_all_targets_set
268 },
1df6b6aa
NA		 269 [BOND_OPT_FAIL_OVER_MAC] = {
270 .id = BOND_OPT_FAIL_OVER_MAC,
271 .name = "fail_over_mac",
272 .desc = "For active-backup, do not set all slaves to the same MAC",
273 .flags = BOND_OPTFLAG_NOSLAVES,
274 .values = bond_fail_over_mac_tbl,
275 .set = bond_option_fail_over_mac_set
276 },
7bdb04ed
NA		 277 [BOND_OPT_ARP_INTERVAL] = {
278 .id = BOND_OPT_ARP_INTERVAL,
279 .name = "arp_interval",
280 .desc = "arp interval in milliseconds",
281 .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
282 BIT(BOND_MODE_ALB),
283 .values = bond_intmax_tbl,
284 .set = bond_option_arp_interval_set
285 },
5944b5ab
HL		 286 [BOND_OPT_MISSED_MAX] = {
287 .id = BOND_OPT_MISSED_MAX,
288 .name = "arp_missed_max",
289 .desc = "Maximum number of missed ARP interval",
290 .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
291 BIT(BOND_MODE_ALB),
292 .values = bond_missed_max_tbl,
293 .set = bond_option_missed_max_set
294 },
4fb0ef58
NA		 295 [BOND_OPT_ARP_TARGETS] = {
296 .id = BOND_OPT_ARP_TARGETS,
297 .name = "arp_ip_target",
298 .desc = "arp targets in n.n.n.n form",
299 .flags = BOND_OPTFLAG_RAWVAL,
300 .set = bond_option_arp_ip_targets_set
301 },
129e3c1b
HL		 302 [BOND_OPT_NS_TARGETS] = {
303 .id = BOND_OPT_NS_TARGETS,
304 .name = "ns_ip6_target",
305 .desc = "NS targets in ffff:ffff::ffff:ffff form",
306 .flags = BOND_OPTFLAG_RAWVAL,
307 .set = bond_option_ns_ip6_targets_set
308 },
25a9b54a
NA		 309 [BOND_OPT_DOWNDELAY] = {
310 .id = BOND_OPT_DOWNDELAY,
311 .name = "downdelay",
312 .desc = "Delay before considering link down, in milliseconds",
313 .values = bond_intmax_tbl,
314 .set = bond_option_downdelay_set
315 },
e4994612
NA		 316 [BOND_OPT_UPDELAY] = {
317 .id = BOND_OPT_UPDELAY,
318 .name = "updelay",
319 .desc = "Delay before considering link up, in milliseconds",
320 .values = bond_intmax_tbl,
321 .set = bond_option_updelay_set
322 },
3a755cd8
HL		 323 [BOND_OPT_LACP_ACTIVE] = {
324 .id = BOND_OPT_LACP_ACTIVE,
325 .name = "lacp_active",
326 .desc = "Send LACPDU frames with configured lacp rate or acts as speak when spoken to",
327 .flags = BOND_OPTFLAG_IFDOWN,
328 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
329 .values = bond_lacp_active,
330 .set = bond_option_lacp_active_set
331 },
d3131de7
NA		 332 [BOND_OPT_LACP_RATE] = {
333 .id = BOND_OPT_LACP_RATE,
334 .name = "lacp_rate",
335 .desc = "LACPDU tx rate to request from 802.3ad partner",
336 .flags = BOND_OPTFLAG_IFDOWN,
337 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
338 .values = bond_lacp_rate_tbl,
339 .set = bond_option_lacp_rate_set
340 },
633ddc9e
NA		 341 [BOND_OPT_MINLINKS] = {
342 .id = BOND_OPT_MINLINKS,
343 .name = "min_links",
344 .desc = "Minimum number of available links before turning on carrier",
345 .values = bond_intmax_tbl,
346 .set = bond_option_min_links_set
347 },
9e5f5eeb
NA		 348 [BOND_OPT_AD_SELECT] = {
349 .id = BOND_OPT_AD_SELECT,
350 .name = "ad_select",
351 .desc = "803.ad aggregation selection logic",
352 .flags = BOND_OPTFLAG_IFDOWN,
353 .values = bond_ad_select_tbl,
354 .set = bond_option_ad_select_set
355 },
ef56becb
NA		 356 [BOND_OPT_NUM_PEER_NOTIF] = {
357 .id = BOND_OPT_NUM_PEER_NOTIF,
358 .name = "num_unsol_na",
359 .desc = "Number of peer notifications to send on failover event",
360 .values = bond_num_peer_notif_tbl,
361 .set = bond_option_num_peer_notif_set
362 },
b98d9c66
NA		 363 [BOND_OPT_MIIMON] = {
364 .id = BOND_OPT_MIIMON,
365 .name = "miimon",
366 .desc = "Link check interval in milliseconds",
367 .values = bond_intmax_tbl,
368 .set = bond_option_miimon_set
369 },
0a2ff7cc
HL		 370 [BOND_OPT_PRIO] = {
371 .id = BOND_OPT_PRIO,
372 .name = "prio",
373 .desc = "Link priority for failover re-selection",
374 .flags = BOND_OPTFLAG_RAWVAL,
375 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
376 BIT(BOND_MODE_TLB) |
377 BIT(BOND_MODE_ALB)),
378 .set = bond_option_prio_set
379 },
180222f0
NA		 380 [BOND_OPT_PRIMARY] = {
381 .id = BOND_OPT_PRIMARY,
382 .name = "primary",
383 .desc = "Primary network device to use",
384 .flags = BOND_OPTFLAG_RAWVAL,
385 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
386 BIT(BOND_MODE_TLB) |
387 BIT(BOND_MODE_ALB)),
388 .set = bond_option_primary_set
389 },
388d3a6d
NA		 390 [BOND_OPT_PRIMARY_RESELECT] = {
391 .id = BOND_OPT_PRIMARY_RESELECT,
392 .name = "primary_reselect",
393 .desc = "Reselect primary slave once it comes up",
394 .values = bond_primary_reselect_tbl,
395 .set = bond_option_primary_reselect_set
396 },
0fff0608
NA		 397 [BOND_OPT_USE_CARRIER] = {
398 .id = BOND_OPT_USE_CARRIER,
399 .name = "use_carrier",
400 .desc = "Use netif_carrier_ok (vs MII ioctls) in miimon",
401 .values = bond_use_carrier_tbl,
402 .set = bond_option_use_carrier_set
403 },
d1fbd3ed
NA		 404 [BOND_OPT_ACTIVE_SLAVE] = {
405 .id = BOND_OPT_ACTIVE_SLAVE,
406 .name = "active_slave",
407 .desc = "Currently active slave",
408 .flags = BOND_OPTFLAG_RAWVAL,
409 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
410 BIT(BOND_MODE_TLB) |
411 BIT(BOND_MODE_ALB)),
412 .set = bond_option_active_slave_set
413 },
24089ba1
NA		 414 [BOND_OPT_QUEUE_ID] = {
415 .id = BOND_OPT_QUEUE_ID,
416 .name = "queue_id",
417 .desc = "Set queue id of a slave",
418 .flags = BOND_OPTFLAG_RAWVAL,
419 .set = bond_option_queue_id_set
420 },
3df01162
NA		 421 [BOND_OPT_ALL_SLAVES_ACTIVE] = {
422 .id = BOND_OPT_ALL_SLAVES_ACTIVE,
423 .name = "all_slaves_active",
424 .desc = "Keep all frames received on an interface by setting active flag for all slaves",
425 .values = bond_all_slaves_active_tbl,
426 .set = bond_option_all_slaves_active_set
427 },
105c8fb6
NA		 428 [BOND_OPT_RESEND_IGMP] = {
429 .id = BOND_OPT_RESEND_IGMP,
430 .name = "resend_igmp",
431 .desc = "Number of IGMP membership reports to send on link failure",
432 .values = bond_resend_igmp_tbl,
433 .set = bond_option_resend_igmp_set
434 },
4325b374
NA		 435 [BOND_OPT_LP_INTERVAL] = {
436 .id = BOND_OPT_LP_INTERVAL,
437 .name = "lp_interval",
438 .desc = "The number of seconds between instances where the bonding driver sends learning packets to each slave's peer switch",
439 .values = bond_lp_interval_tbl,
440 .set = bond_option_lp_interval_set
441 },
0e2e5b66
NA		 442 [BOND_OPT_SLAVES] = {
443 .id = BOND_OPT_SLAVES,
444 .name = "slaves",
445 .desc = "Slave membership management",
446 .flags = BOND_OPTFLAG_RAWVAL,
447 .set = bond_option_slaves_set
448 },
e9f0fb88
MB		 449 [BOND_OPT_TLB_DYNAMIC_LB] = {
450 .id = BOND_OPT_TLB_DYNAMIC_LB,
dc3e5d18 451 .name = "tlb_dynamic_lb",
e9f0fb88 452 .desc = "Enable dynamic flow shuffling",
e79c1055 453 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_TLB) | BIT(BOND_MODE_ALB)),
e9f0fb88
MB		 454 .values = bond_tlb_dynamic_lb_tbl,
455 .flags = BOND_OPTFLAG_IFDOWN,
456 .set = bond_option_tlb_dynamic_lb_set,
6791e466
MB		 457 },
458 [BOND_OPT_AD_ACTOR_SYS_PRIO] = {
459 .id = BOND_OPT_AD_ACTOR_SYS_PRIO,
460 .name = "ad_actor_sys_prio",
461 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
6791e466
MB		 462 .values = bond_ad_actor_sys_prio_tbl,
463 .set = bond_option_ad_actor_sys_prio_set,
464 },
74514957
MB		 465 [BOND_OPT_AD_ACTOR_SYSTEM] = {
466 .id = BOND_OPT_AD_ACTOR_SYSTEM,
467 .name = "ad_actor_system",
468 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
7f20cd25 469 .flags = BOND_OPTFLAG_RAWVAL,
74514957
MB		 470 .set = bond_option_ad_actor_system_set,
471 },
d22a5fc0
MB		 472 [BOND_OPT_AD_USER_PORT_KEY] = {
473 .id = BOND_OPT_AD_USER_PORT_KEY,
474 .name = "ad_user_port_key",
475 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
476 .flags = BOND_OPTFLAG_IFDOWN,
477 .values = bond_ad_user_port_key_tbl,
478 .set = bond_option_ad_user_port_key_set,
205845a3
NA		 479 },
480 [BOND_OPT_NUM_PEER_NOTIF_ALIAS] = {
481 .id = BOND_OPT_NUM_PEER_NOTIF_ALIAS,
482 .name = "num_grat_arp",
483 .desc = "Number of peer notifications to send on failover event",
484 .values = bond_num_peer_notif_tbl,
485 .set = bond_option_num_peer_notif_set
07a4ddec
VB		 486 },
487 [BOND_OPT_PEER_NOTIF_DELAY] = {
488 .id = BOND_OPT_PEER_NOTIF_DELAY,
489 .name = "peer_notif_delay",
490 .desc = "Delay between each peer notification on failover event, in milliseconds",
491 .values = bond_intmax_tbl,
492 .set = bond_option_peer_notif_delay_set
d22a5fc0 493 }
09117362
NA		 494};
495
dc3e5d18
NA		 496/* Searches for an option by name */
497const struct bond_option *bond_opt_get_by_name(const char *name)
498{
499 const struct bond_option *opt;
500 int option;
501
502 for (option = 0; option < BOND_OPT_LAST; option++) {
503 opt = bond_opt_get(option);
504 if (opt && !strcmp(opt->name, name))
505 return opt;
506 }
507
508 return NULL;
509}
510
09117362 511/* Searches for a value in opt's values[] table */
f3253339 512const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val)
09117362 513{
f3253339 514 const struct bond_option *opt;
09117362
NA		 515 int i;
516
517 opt = bond_opt_get(option);
518 if (WARN_ON(!opt))
519 return NULL;
520 for (i = 0; opt->values && opt->values[i].string; i++)
521 if (opt->values[i].value == val)
522 return &opt->values[i];
523
524 return NULL;
525}
526
527/* Searches for a value in opt's values[] table which matches the flagmask */
f3253339 528static const struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt,
eac306b4 529 u32 flagmask)
09117362
NA		 530{
531 int i;
532
533 for (i = 0; opt->values && opt->values[i].string; i++)
534 if (opt->values[i].flags & flagmask)
535 return &opt->values[i];
536
537 return NULL;
538}
539
540/* If maxval is missing then there's no range to check. In case minval is
541 * missing then it's considered to be 0.
542 */
543static bool bond_opt_check_range(const struct bond_option *opt, u64 val)
544{
f3253339 545 const struct bond_opt_value *minval, *maxval;
09117362
NA		 546
547 minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
548 maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
549 if (!maxval || (minval && val < minval->value) || val > maxval->value)
550 return false;
551
552 return true;
553}
554
555/**
556 * bond_opt_parse - parse option value
557 * @opt: the option to parse against
558 * @val: value to parse
559 *
560 * This function tries to extract the value from @val and check if it's
561 * a possible match for the option and returns NULL if a match isn't found,
562 * or the struct_opt_value that matched. It also strips the new line from
563 * @val->string if it's present.
564 */
f3253339 565const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
566 struct bond_opt_value *val)
09117362
NA		 567{
568 char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, };
f3253339 569 const struct bond_opt_value *tbl;
570 const struct bond_opt_value *ret = NULL;
09117362
NA		 571 bool checkval;
572 int i, rv;
573
574 /* No parsing if the option wants a raw val */
575 if (opt->flags & BOND_OPTFLAG_RAWVAL)
576 return val;
577
578 tbl = opt->values;
579 if (!tbl)
580 goto out;
581
582 /* ULLONG_MAX is used to bypass string processing */
583 checkval = val->value != ULLONG_MAX;
584 if (!checkval) {
585 if (!val->string)
586 goto out;
587 p = strchr(val->string, '\n');
588 if (p)
589 *p = '\0';
590 for (p = val->string; *p; p++)
591 if (!(isdigit(*p) || isspace(*p)))
592 break;
593 /* The following code extracts the string to match or the value
594 * and sets checkval appropriately
595 */
596 if (*p) {
597 rv = sscanf(val->string, "%32s", valstr);
598 } else {
599 rv = sscanf(val->string, "%llu", &val->value);
600 checkval = true;
601 }
602 if (!rv)
603 goto out;
604 }
605
606 for (i = 0; tbl[i].string; i++) {
607 /* Check for exact match */
608 if (checkval) {
609 if (val->value == tbl[i].value)
610 ret = &tbl[i];
611 } else {
612 if (!strcmp(valstr, "default") &&
613 (tbl[i].flags & BOND_VALFLAG_DEFAULT))
614 ret = &tbl[i];
615
616 if (!strcmp(valstr, tbl[i].string))
617 ret = &tbl[i];
618 }
619 /* Found an exact match */
620 if (ret)
621 goto out;
622 }
623 /* Possible range match */
624 if (checkval && bond_opt_check_range(opt, val->value))
625 ret = val;
626out:
627 return ret;
628}
629
630/* Check opt's dependencies against bond mode and currently set options */
631static int bond_opt_check_deps(struct bonding *bond,
632 const struct bond_option *opt)
633{
634 struct bond_params *params = &bond->params;
635
636 if (test_bit(params->mode, &opt->unsuppmodes))
637 return -EACCES;
638 if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond))
639 return -ENOTEMPTY;
640 if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP))
641 return -EBUSY;
642
643 return 0;
644}
645
646static void bond_opt_dep_print(struct bonding *bond,
2bff369b
JT		 647 const struct bond_option *opt,
648 struct nlattr *bad_attr,
649 struct netlink_ext_ack *extack)
09117362 650{
28f084cc 651 const struct bond_opt_value *modeval;
09117362
NA		 652 struct bond_params *params;
653
654 params = &bond->params;
2b3798d5 655 modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode);
2bff369b 656 if (test_bit(params->mode, &opt->unsuppmodes)) {
2de390ba
VF		 657 netdev_err(bond->dev, "option %s: mode dependency failed, not supported in mode %s(%llu)\n",
658 opt->name, modeval->string, modeval->value);
2bff369b
JT		 659 NL_SET_ERR_MSG_ATTR(extack, bad_attr,
660 "option not supported in mode");
661 }
09117362
NA		 662}
663
664static void bond_opt_error_interpret(struct bonding *bond,
665 const struct bond_option *opt,
2bff369b
JT		 666 int error, const struct bond_opt_value *val,
667 struct nlattr *bad_attr,
668 struct netlink_ext_ack *extack)
09117362 669{
28f084cc 670 const struct bond_opt_value *minval, *maxval;
09117362
NA		 671 char *p;
672
673 switch (error) {
674 case -EINVAL:
2bff369b 675 NL_SET_ERR_MSG_ATTR(extack, bad_attr, "invalid option value");
09117362
NA		 676 if (val) {
677 if (val->string) {
678 /* sometimes RAWVAL opts may have new lines */
679 p = strchr(val->string, '\n');
680 if (p)
681 *p = '\0';
2de390ba
VF		 682 netdev_err(bond->dev, "option %s: invalid value (%s)\n",
683 opt->name, val->string);
09117362 684 } else {
2de390ba
VF		 685 netdev_err(bond->dev, "option %s: invalid value (%llu)\n",
686 opt->name, val->value);
09117362
NA		 687 }
688 }
689 minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
690 maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
691 if (!maxval)
692 break;
2de390ba
VF		 693 netdev_err(bond->dev, "option %s: allowed values %llu - %llu\n",
694 opt->name, minval ? minval->value : 0, maxval->value);
09117362
NA		 695 break;
696 case -EACCES:
2bff369b 697 bond_opt_dep_print(bond, opt, bad_attr, extack);
09117362
NA		 698 break;
699 case -ENOTEMPTY:
2bff369b
JT		 700 NL_SET_ERR_MSG_ATTR(extack, bad_attr,
701 "unable to set option because the bond device has slaves");
2de390ba
VF		 702 netdev_err(bond->dev, "option %s: unable to set because the bond device has slaves\n",
703 opt->name);
09117362
NA		 704 break;
705 case -EBUSY:
2bff369b
JT		 706 NL_SET_ERR_MSG_ATTR(extack, bad_attr,
707 "unable to set option because the bond is up");
2de390ba
VF		 708 netdev_err(bond->dev, "option %s: unable to set because the bond device is up\n",
709 opt->name);
09117362 710 break;
acdff0df
JL		 711 case -ENODEV:
712 if (val && val->string) {
713 p = strchr(val->string, '\n');
714 if (p)
715 *p = '\0';
716 netdev_err(bond->dev, "option %s: interface %s does not exist!\n",
717 opt->name, val->string);
2bff369b
JT		 718 NL_SET_ERR_MSG_ATTR(extack, bad_attr,
719 "interface does not exist");
acdff0df
JL		 720 }
721 break;
09117362
NA		 722 default:
723 break;
724 }
725}
726
727/**
728 * __bond_opt_set - set a bonding option
729 * @bond: target bond device
730 * @option: option to set
731 * @val: value to set it to
2bff369b
JT		 732 * @bad_attr: netlink attribue that caused the error
733 * @extack: extended netlink error structure, used when an error message
734 * needs to be returned to the caller via netlink
09117362
NA		 735 *
736 * This function is used to change the bond's option value, it can be
737 * used for both enabling/changing an option and for disabling it. RTNL lock
738 * must be obtained before calling this function.
739 */
740int __bond_opt_set(struct bonding *bond,
2bff369b
JT		 741 unsigned int option, struct bond_opt_value *val,
742 struct nlattr *bad_attr, struct netlink_ext_ack *extack)
09117362 743{
28f084cc 744 const struct bond_opt_value *retval = NULL;
09117362
NA		 745 const struct bond_option *opt;
746 int ret = -ENOENT;
747
748 ASSERT_RTNL();
749
750 opt = bond_opt_get(option);
751 if (WARN_ON(!val) || WARN_ON(!opt))
752 goto out;
753 ret = bond_opt_check_deps(bond, opt);
754 if (ret)
755 goto out;
756 retval = bond_opt_parse(opt, val);
757 if (!retval) {
758 ret = -EINVAL;
759 goto out;
760 }
761 ret = opt->set(bond, retval);
762out:
763 if (ret)
2bff369b 764 bond_opt_error_interpret(bond, opt, ret, val, bad_attr, extack);
7a7e96e0
VY		 765
766 return ret;
767}
768/**
769 * __bond_opt_set_notify - set a bonding option
770 * @bond: target bond device
771 * @option: option to set
772 * @val: value to set it to
773 *
774 * This function is used to change the bond's option value and trigger
775 * a notification to user sapce. It can be used for both enabling/changing
776 * an option and for disabling it. RTNL lock must be obtained before calling
777 * this function.
778 */
779int __bond_opt_set_notify(struct bonding *bond,
780 unsigned int option, struct bond_opt_value *val)
781{
92e1b57c 782 int ret;
7a7e96e0
VY		 783
784 ASSERT_RTNL();
785
2bff369b 786 ret = __bond_opt_set(bond, option, val, NULL, NULL);
7a7e96e0
VY		 787
788 if (!ret && (bond->dev->reg_state == NETREG_REGISTERED))
d4261e56 789 call_netdevice_notifiers(NETDEV_CHANGEINFODATA, bond->dev);
09117362
NA		 790
791 return ret;
792}
793
794/**
795 * bond_opt_tryset_rtnl - try to acquire rtnl and call __bond_opt_set
796 * @bond: target bond device
797 * @option: option to set
798 * @buf: value to set it to
799 *
800 * This function tries to acquire RTNL without blocking and if successful
801 * calls __bond_opt_set. It is mainly used for sysfs option manipulation.
802 */
803int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf)
804{
805 struct bond_opt_value optval;
806 int ret;
807
808 if (!rtnl_trylock())
809 return restart_syscall();
810 bond_opt_initstr(&optval, buf);
7a7e96e0 811 ret = __bond_opt_set_notify(bond, option, &optval);
09117362
NA		 812 rtnl_unlock();
813
814 return ret;
815}
816
817/**
818 * bond_opt_get - get a pointer to an option
819 * @option: option for which to return a pointer
820 *
821 * This function checks if option is valid and if so returns a pointer
822 * to its entry in the bond_opts[] option array.
823 */
f3253339 824const struct bond_option *bond_opt_get(unsigned int option)
09117362
NA		 825{
826 if (!BOND_OPT_VALID(option))
827 return NULL;
828
829 return &bond_opts[option];
830}
831
f45583de 832static bool bond_set_xfrm_features(struct bonding *bond)
007ab534
JW		 833{
834 if (!IS_ENABLED(CONFIG_XFRM_OFFLOAD))
f45583de 835 return false;
007ab534 836
f45583de
TT		 837 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP)
838 bond->dev->wanted_features |= BOND_XFRM_FEATURES;
007ab534 839 else
f45583de 840 bond->dev->wanted_features &= ~BOND_XFRM_FEATURES;
007ab534 841
f45583de 842 return true;
007ab534
JW		 843}
844
ff11d8b2
NA		 845static int bond_option_mode_set(struct bonding *bond,
846 const struct bond_opt_value *newval)
72be35fe 847{
c1f897ce
JW		 848 if (!bond_mode_uses_arp(newval->value)) {
849 if (bond->params.arp_interval) {
850 netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",
851 newval->string);
852 /* disable arp monitoring */
853 bond->params.arp_interval = 0;
854 }
855
856 if (!bond->params.miimon) {
857 /* set miimon to default value */
858 bond->params.miimon = BOND_DEFAULT_MIIMON;
859 netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n",
860 bond->params.miimon);
861 }
72be35fe
JP		 862 }
863
c6644d07
KT		 864 if (newval->value == BOND_MODE_ALB)
865 bond->params.tlb_dynamic_lb = 1;
866
72be35fe
JP		 867 /* don't cache arp_validate between modes */
868 bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
2b3798d5
NA		 869 bond->params.mode = newval->value;
870
89df6a81
TT		 871 if (bond->dev->reg_state == NETREG_REGISTERED) {
872 bool update = false;
873
874 update |= bond_set_xfrm_features(bond);
89df6a81
TT		 875
876 if (update)
f45583de 877 netdev_update_features(bond->dev);
89df6a81 878 }
f45583de 879
cb9e6e58
LB		 880 bond_xdp_set_features(bond->dev);
881
72be35fe
JP		 882 return 0;
883}
d9e32b21 884
f3253339 885static int bond_option_active_slave_set(struct bonding *bond,
28f084cc 886 const struct bond_opt_value *newval)
d9e32b21 887{
d1fbd3ed
NA		 888 char ifname[IFNAMSIZ] = { 0, };
889 struct net_device *slave_dev;
d9e32b21
JP		 890 int ret = 0;
891
d1fbd3ed
NA		 892 sscanf(newval->string, "%15s", ifname); /* IFNAMSIZ */
893 if (!strlen(ifname) || newval->string[0] == '\n') {
894 slave_dev = NULL;
895 } else {
896 slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname);
897 if (!slave_dev)
898 return -ENODEV;
899 }
900
d9e32b21
JP		 901 if (slave_dev) {
902 if (!netif_is_bond_slave(slave_dev)) {
f887e54c 903 slave_err(bond->dev, slave_dev, "Device is not bonding slave\n");
d9e32b21
JP		 904 return -EINVAL;
905 }
906
907 if (bond->dev != netdev_master_upper_dev_get(slave_dev)) {
f887e54c 908 slave_err(bond->dev, slave_dev, "Device is not our slave\n");
d9e32b21
JP		 909 return -EINVAL;
910 }
911 }
912
d9e32b21 913 block_netpoll_tx();
d9e32b21
JP		 914 /* check to see if we are clearing active */
915 if (!slave_dev) {
eac306b4 916 netdev_dbg(bond->dev, "Clearing current active slave\n");
8800a244 917 RCU_INIT_POINTER(bond->curr_active_slave, NULL);
d9e32b21
JP		 918 bond_select_active_slave(bond);
919 } else {
1c72cfdc 920 struct slave *old_active = rtnl_dereference(bond->curr_active_slave);
d9e32b21
JP		 921 struct slave *new_active = bond_slave_get_rtnl(slave_dev);
922
923 BUG_ON(!new_active);
924
925 if (new_active == old_active) {
926 /* do nothing */
f887e54c 927 slave_dbg(bond->dev, new_active->dev, "is already the current active slave\n");
d9e32b21
JP		 928 } else {
929 if (old_active && (new_active->link == BOND_LINK_UP) &&
b6adc610 930 bond_slave_is_up(new_active)) {
f887e54c 931 slave_dbg(bond->dev, new_active->dev, "Setting as active slave\n");
d9e32b21
JP		 932 bond_change_active_slave(bond, new_active);
933 } else {
f887e54c
JW		 934 slave_err(bond->dev, new_active->dev, "Could not set as active slave; either %s is down or the link is down\n",
935 new_active->dev->name);
d9e32b21
JP		 936 ret = -EINVAL;
937 }
938 }
939 }
d9e32b21 940 unblock_netpoll_tx();
d1fbd3ed 941
d9e32b21
JP		 942 return ret;
943}
eecdaa6e 944
dc3e5d18
NA		 945/* There are two tricky bits here. First, if MII monitoring is activated, then
946 * we must disable ARP monitoring. Second, if the timer isn't running, we must
947 * start it.
948 */
f3253339 949static int bond_option_miimon_set(struct bonding *bond,
28f084cc 950 const struct bond_opt_value *newval)
eecdaa6e 951{
eac306b4
MD		 952 netdev_dbg(bond->dev, "Setting MII monitoring interval to %llu\n",
953 newval->value);
b98d9c66 954 bond->params.miimon = newval->value;
eecdaa6e 955 if (bond->params.updelay)
eac306b4
MD		 956 netdev_dbg(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\n",
957 bond->params.updelay * bond->params.miimon);
eecdaa6e 958 if (bond->params.downdelay)
eac306b4
MD		 959 netdev_dbg(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon value\n",
960 bond->params.downdelay * bond->params.miimon);
07a4ddec
VB		 961 if (bond->params.peer_notif_delay)
962 netdev_dbg(bond->dev, "Note: Updating peer_notif_delay (to %d) since it is a multiple of the miimon value\n",
963 bond->params.peer_notif_delay * bond->params.miimon);
b98d9c66 964 if (newval->value && bond->params.arp_interval) {
eac306b4 965 netdev_dbg(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitoring...\n");
eecdaa6e 966 bond->params.arp_interval = 0;
967 if (bond->params.arp_validate)
968 bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
969 }
970 if (bond->dev->flags & IFF_UP) {
971 /* If the interface is up, we may need to fire off
972 * the MII timer. If the interface is down, the
973 * timer will get fired off when the open function
974 * is called.
975 */
b98d9c66 976 if (!newval->value) {
eecdaa6e 977 cancel_delayed_work_sync(&bond->mii_work);
978 } else {
979 cancel_delayed_work_sync(&bond->arp_work);
980 queue_delayed_work(bond->wq, &bond->mii_work, 0);
981 }
982 }
b98d9c66 983
eecdaa6e 984 return 0;
985}
25852e29 986
07a4ddec
VB		 987/* Set up, down and peer notification delays. These must be multiples
988 * of the MII monitoring value, and are stored internally as the
989 * multiplier. Thus, we must translate to MS for the real world.
dc3e5d18 990 */
07a4ddec
VB		 991static int _bond_option_delay_set(struct bonding *bond,
992 const struct bond_opt_value *newval,
993 const char *name,
994 int *target)
25852e29 995{
0681a282
NA		 996 int value = newval->value;
997
e4994612 998 if (!bond->params.miimon) {
07a4ddec
VB		 999 netdev_err(bond->dev, "Unable to set %s as MII monitoring is disabled\n",
1000 name);
25852e29 1001 return -EPERM;
1002 }
0681a282 1003 if ((value % bond->params.miimon) != 0) {
07a4ddec
VB		 1004 netdev_warn(bond->dev,
1005 "%s (%d) is not a multiple of miimon (%d), value rounded to %d ms\n",
1006 name,
2de390ba
VF		 1007 value, bond->params.miimon,
1008 (value / bond->params.miimon) *
1009 bond->params.miimon);
25852e29 1010 }
07a4ddec
VB		 1011 *target = value / bond->params.miimon;
1012 netdev_dbg(bond->dev, "Setting %s to %d\n",
1013 name,
1014 *target * bond->params.miimon);
25852e29 1015
1016 return 0;
1017}
c7461f9b 1018
07a4ddec
VB		 1019static int bond_option_updelay_set(struct bonding *bond,
1020 const struct bond_opt_value *newval)
1021{
1022 return _bond_option_delay_set(bond, newval, "up delay",
1023 &bond->params.updelay);
1024}
1025
f3253339 1026static int bond_option_downdelay_set(struct bonding *bond,
28f084cc 1027 const struct bond_opt_value *newval)
c7461f9b 1028{
07a4ddec
VB		 1029 return _bond_option_delay_set(bond, newval, "down delay",
1030 &bond->params.downdelay);
1031}
c7461f9b 1032
07a4ddec
VB		 1033static int bond_option_peer_notif_delay_set(struct bonding *bond,
1034 const struct bond_opt_value *newval)
1035{
1036 int ret = _bond_option_delay_set(bond, newval,
1037 "peer notification delay",
1038 &bond->params.peer_notif_delay);
1039 return ret;
c7461f9b 1040}
9f53e14e 1041
f3253339 1042static int bond_option_use_carrier_set(struct bonding *bond,
28f084cc 1043 const struct bond_opt_value *newval)
9f53e14e 1044{
eac306b4
MD		 1045 netdev_dbg(bond->dev, "Setting use_carrier to %llu\n",
1046 newval->value);
0fff0608 1047 bond->params.use_carrier = newval->value;
9f53e14e 1048
1049 return 0;
1050}
06151dbc 1051
dc3e5d18
NA		 1052/* There are two tricky bits here. First, if ARP monitoring is activated, then
1053 * we must disable MII monitoring. Second, if the ARP timer isn't running,
1054 * we must start it.
1055 */
f3253339 1056static int bond_option_arp_interval_set(struct bonding *bond,
28f084cc 1057 const struct bond_opt_value *newval)
06151dbc 1058{
eac306b4
MD		 1059 netdev_dbg(bond->dev, "Setting ARP monitoring interval to %llu\n",
1060 newval->value);
7bdb04ed
NA		 1061 bond->params.arp_interval = newval->value;
1062 if (newval->value) {
06151dbc 1063 if (bond->params.miimon) {
eac306b4 1064 netdev_dbg(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitoring\n");
06151dbc 1065 bond->params.miimon = 0;
1066 }
1067 if (!bond->params.arp_targets[0])
eac306b4 1068 netdev_dbg(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n");
06151dbc 1069 }
1070 if (bond->dev->flags & IFF_UP) {
1071 /* If the interface is up, we may need to fire off
1072 * the ARP timer. If the interface is down, the
1073 * timer will get fired off when the open function
1074 * is called.
1075 */
7bdb04ed 1076 if (!newval->value) {
06151dbc 1077 if (bond->params.arp_validate)
1078 bond->recv_probe = NULL;
1079 cancel_delayed_work_sync(&bond->arp_work);
1080 } else {
1081 /* arp_validate can be set only in active-backup mode */
4e24be01 1082 bond->recv_probe = bond_rcv_validate;
06151dbc 1083 cancel_delayed_work_sync(&bond->mii_work);
1084 queue_delayed_work(bond->wq, &bond->arp_work, 0);
1085 }
1086 }
1087
1088 return 0;
1089}
7f28fa10 1090
1091static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot,
1092 __be32 target,
1093 unsigned long last_rx)
1094{
1095 __be32 *targets = bond->params.arp_targets;
1096 struct list_head *iter;
1097 struct slave *slave;
1098
1099 if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) {
1100 bond_for_each_slave(bond, slave, iter)
1101 slave->target_last_arp_rx[slot] = last_rx;
1102 targets[slot] = target;
1103 }
1104}
1105
1106static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
1107{
1108 __be32 *targets = bond->params.arp_targets;
1109 int ind;
1110
2807a9fe 1111 if (!bond_is_ip_target_ok(target)) {
2de390ba
VF		 1112 netdev_err(bond->dev, "invalid ARP target %pI4 specified for addition\n",
1113 &target);
7f28fa10 1114 return -EINVAL;
1115 }
1116
1117 if (bond_get_targets_ip(targets, target) != -1) { /* dup */
2de390ba
VF		 1118 netdev_err(bond->dev, "ARP target %pI4 is already present\n",
1119 &target);
7f28fa10 1120 return -EINVAL;
1121 }
1122
1123 ind = bond_get_targets_ip(targets, 0); /* first free slot */
1124 if (ind == -1) {
2de390ba 1125 netdev_err(bond->dev, "ARP target table is full!\n");
7f28fa10 1126 return -EINVAL;
1127 }
1128
eac306b4 1129 netdev_dbg(bond->dev, "Adding ARP target %pI4\n", &target);
7f28fa10 1130
1131 _bond_options_arp_ip_target_set(bond, ind, target, jiffies);
1132
1133 return 0;
1134}
1135
f3253339 1136static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
7f28fa10 1137{
246df7b4 1138 return _bond_option_arp_ip_target_add(bond, target);
7f28fa10 1139}
1140
f3253339 1141static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target)
7f28fa10 1142{
1143 __be32 *targets = bond->params.arp_targets;
1144 struct list_head *iter;
1145 struct slave *slave;
1146 unsigned long *targets_rx;
1147 int ind, i;
1148
2807a9fe 1149 if (!bond_is_ip_target_ok(target)) {
2de390ba
VF		 1150 netdev_err(bond->dev, "invalid ARP target %pI4 specified for removal\n",
1151 &target);
7f28fa10 1152 return -EINVAL;
1153 }
1154
1155 ind = bond_get_targets_ip(targets, target);
1156 if (ind == -1) {
2de390ba
VF		 1157 netdev_err(bond->dev, "unable to remove nonexistent ARP target %pI4\n",
1158 &target);
7f28fa10 1159 return -EINVAL;
1160 }
1161
1162 if (ind == 0 && !targets[1] && bond->params.arp_interval)
2de390ba 1163 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
7f28fa10 1164
eac306b4 1165 netdev_dbg(bond->dev, "Removing ARP target %pI4\n", &target);
7f28fa10 1166
7f28fa10 1167 bond_for_each_slave(bond, slave, iter) {
1168 targets_rx = slave->target_last_arp_rx;
1169 for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
1170 targets_rx[i] = targets_rx[i+1];
1171 targets_rx[i] = 0;
1172 }
1173 for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
1174 targets[i] = targets[i+1];
1175 targets[i] = 0;
1176
7f28fa10 1177 return 0;
1178}
1179
4fb0ef58 1180void bond_option_arp_ip_targets_clear(struct bonding *bond)
7f28fa10 1181{
4fb0ef58 1182 int i;
7f28fa10 1183
7f28fa10 1184 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
1185 _bond_options_arp_ip_target_set(bond, i, 0, 0);
4fb0ef58 1186}
7f28fa10 1187
f3253339 1188static int bond_option_arp_ip_targets_set(struct bonding *bond,
28f084cc 1189 const struct bond_opt_value *newval)
4fb0ef58
NA		 1190{
1191 int ret = -EPERM;
1192 __be32 target;
1193
1194 if (newval->string) {
1195 if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) {
2de390ba
VF		 1196 netdev_err(bond->dev, "invalid ARP target %pI4 specified\n",
1197 &target);
4fb0ef58
NA		 1198 return ret;
1199 }
1200 if (newval->string[0] == '+')
1201 ret = bond_option_arp_ip_target_add(bond, target);
1202 else if (newval->string[0] == '-')
1203 ret = bond_option_arp_ip_target_rem(bond, target);
1204 else
2de390ba 1205 netdev_err(bond->dev, "no command found in arp_ip_targets file - use +<addr> or -<addr>\n");
4fb0ef58
NA		 1206 } else {
1207 target = newval->value;
1208 ret = bond_option_arp_ip_target_add(bond, target);
7f28fa10 1209 }
1210
7f28fa10 1211 return ret;
1212}
29c49482 1213
129e3c1b
HL		 1214#if IS_ENABLED(CONFIG_IPV6)
1215static void _bond_options_ns_ip6_target_set(struct bonding *bond, int slot,
1216 struct in6_addr *target,
1217 unsigned long last_rx)
1218{
1219 struct in6_addr *targets = bond->params.ns_targets;
1220 struct list_head *iter;
1221 struct slave *slave;
1222
1223 if (slot >= 0 && slot < BOND_MAX_NS_TARGETS) {
1224 bond_for_each_slave(bond, slave, iter)
1225 slave->target_last_arp_rx[slot] = last_rx;
1226 targets[slot] = *target;
1227 }
1228}
1229
1230void bond_option_ns_ip6_targets_clear(struct bonding *bond)
1231{
1232 struct in6_addr addr_any = in6addr_any;
1233 int i;
1234
1235 for (i = 0; i < BOND_MAX_NS_TARGETS; i++)
1236 _bond_options_ns_ip6_target_set(bond, i, &addr_any, 0);
1237}
1238
1239static int bond_option_ns_ip6_targets_set(struct bonding *bond,
1240 const struct bond_opt_value *newval)
1241{
1242 struct in6_addr *target = (struct in6_addr *)newval->extra;
1243 struct in6_addr *targets = bond->params.ns_targets;
1244 struct in6_addr addr_any = in6addr_any;
1245 int index;
1246
1247 if (!bond_is_ip6_target_ok(target)) {
1248 netdev_err(bond->dev, "invalid NS target %pI6c specified for addition\n",
1249 target);
1250 return -EINVAL;
1251 }
1252
1253 if (bond_get_targets_ip6(targets, target) != -1) { /* dup */
1254 netdev_err(bond->dev, "NS target %pI6c is already present\n",
1255 target);
1256 return -EINVAL;
1257 }
1258
1259 index = bond_get_targets_ip6(targets, &addr_any); /* first free slot */
1260 if (index == -1) {
1261 netdev_err(bond->dev, "NS target table is full!\n");
1262 return -EINVAL;
1263 }
1264
1265 netdev_dbg(bond->dev, "Adding NS target %pI6c\n", target);
1266
1267 _bond_options_ns_ip6_target_set(bond, index, target, jiffies);
1268
1269 return 0;
1270}
c4caa500
HL		 1271#else
1272static int bond_option_ns_ip6_targets_set(struct bonding *bond,
1273 const struct bond_opt_value *newval)
1274{
1275 return -EPERM;
1276}
129e3c1b
HL		 1277#endif
1278
f3253339 1279static int bond_option_arp_validate_set(struct bonding *bond,
28f084cc 1280 const struct bond_opt_value *newval)
29c49482 1281{
eac306b4
MD		 1282 netdev_dbg(bond->dev, "Setting arp_validate to %s (%llu)\n",
1283 newval->string, newval->value);
16228881 1284 bond->params.arp_validate = newval->value;
29c49482 1285
1286 return 0;
1287}
d5c84254 1288
f3253339 1289static int bond_option_arp_all_targets_set(struct bonding *bond,
28f084cc 1290 const struct bond_opt_value *newval)
d5c84254 1291{
eac306b4
MD		 1292 netdev_dbg(bond->dev, "Setting arp_all_targets to %s (%llu)\n",
1293 newval->string, newval->value);
edf36b24 1294 bond->params.arp_all_targets = newval->value;
d5c84254 1295
1296 return 0;
1297}
0a98a0d1 1298
5944b5ab
HL		 1299static int bond_option_missed_max_set(struct bonding *bond,
1300 const struct bond_opt_value *newval)
1301{
1302 netdev_dbg(bond->dev, "Setting missed max to %s (%llu)\n",
1303 newval->string, newval->value);
1304 bond->params.missed_max = newval->value;
1305
1306 return 0;
1307}
1308
0a2ff7cc
HL		 1309static int bond_option_prio_set(struct bonding *bond,
1310 const struct bond_opt_value *newval)
1311{
1312 struct slave *slave;
1313
1314 slave = bond_slave_get_rtnl(newval->slave_dev);
1315 if (!slave) {
1316 netdev_dbg(newval->slave_dev, "%s called on NULL slave\n", __func__);
1317 return -ENODEV;
1318 }
1319 slave->prio = newval->value;
1320
1321 if (rtnl_dereference(bond->primary_slave))
1322 slave_warn(bond->dev, slave->dev,
1323 "prio updated, but will not affect failover re-selection as primary slave have been set\n");
1324 else
1325 bond_select_active_slave(bond);
1326
1327 return 0;
1328}
1329
f3253339 1330static int bond_option_primary_set(struct bonding *bond,
28f084cc 1331 const struct bond_opt_value *newval)
0a98a0d1 1332{
180222f0 1333 char *p, *primary = newval->string;
0a98a0d1 1334 struct list_head *iter;
1335 struct slave *slave;
0a98a0d1 1336
1337 block_netpoll_tx();
0a98a0d1 1338
180222f0
NA		 1339 p = strchr(primary, '\n');
1340 if (p)
1341 *p = '\0';
0a98a0d1 1342 /* check to see if we are clearing primary */
1343 if (!strlen(primary)) {
eac306b4 1344 netdev_dbg(bond->dev, "Setting primary slave to None\n");
059b47e8 1345 RCU_INIT_POINTER(bond->primary_slave, NULL);
0a98a0d1 1346 memset(bond->params.primary, 0, sizeof(bond->params.primary));
1347 bond_select_active_slave(bond);
1348 goto out;
1349 }
1350
1351 bond_for_each_slave(bond, slave, iter) {
1352 if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) {
f887e54c 1353 slave_dbg(bond->dev, slave->dev, "Setting as primary slave\n");
059b47e8 1354 rcu_assign_pointer(bond->primary_slave, slave);
0a98a0d1 1355 strcpy(bond->params.primary, slave->dev->name);
eb55bbf8 1356 bond->force_primary = true;
0a98a0d1 1357 bond_select_active_slave(bond);
1358 goto out;
1359 }
1360 }
1361
059b47e8 1362 if (rtnl_dereference(bond->primary_slave)) {
eac306b4 1363 netdev_dbg(bond->dev, "Setting primary slave to None\n");
059b47e8 1364 RCU_INIT_POINTER(bond->primary_slave, NULL);
c59ab673 1365 bond_select_active_slave(bond);
1366 }
43902070 1367 strscpy_pad(bond->params.primary, primary, IFNAMSIZ);
0a98a0d1 1368
f887e54c
JW		 1369 netdev_dbg(bond->dev, "Recording %s as primary, but it has not been enslaved yet\n",
1370 primary);
0a98a0d1 1371
1372out:
0a98a0d1 1373 unblock_netpoll_tx();
1374
180222f0 1375 return 0;
0a98a0d1 1376}
8a41ae44 1377
f3253339 1378static int bond_option_primary_reselect_set(struct bonding *bond,
28f084cc 1379 const struct bond_opt_value *newval)
8a41ae44 1380{
eac306b4
MD		 1381 netdev_dbg(bond->dev, "Setting primary_reselect to %s (%llu)\n",
1382 newval->string, newval->value);
388d3a6d 1383 bond->params.primary_reselect = newval->value;
8a41ae44 1384
1385 block_netpoll_tx();
8a41ae44 1386 bond_select_active_slave(bond);
8a41ae44 1387 unblock_netpoll_tx();
1388
1389 return 0;
1390}
89901972 1391
f3253339 1392static int bond_option_fail_over_mac_set(struct bonding *bond,
28f084cc 1393 const struct bond_opt_value *newval)
89901972 1394{
eac306b4
MD		 1395 netdev_dbg(bond->dev, "Setting fail_over_mac to %s (%llu)\n",
1396 newval->string, newval->value);
1df6b6aa 1397 bond->params.fail_over_mac = newval->value;
89901972 1398
1399 return 0;
1400}
f70161c6 1401
f3253339 1402static int bond_option_xmit_hash_policy_set(struct bonding *bond,
28f084cc 1403 const struct bond_opt_value *newval)
f70161c6 1404{
eac306b4
MD		 1405 netdev_dbg(bond->dev, "Setting xmit hash policy to %s (%llu)\n",
1406 newval->string, newval->value);
a4b32ce7 1407 bond->params.xmit_policy = newval->value;
f70161c6 1408
1409 return 0;
1410}
d8838de7 1411
f3253339 1412static int bond_option_resend_igmp_set(struct bonding *bond,
28f084cc 1413 const struct bond_opt_value *newval)
d8838de7 1414{
eac306b4
MD		 1415 netdev_dbg(bond->dev, "Setting resend_igmp to %llu\n",
1416 newval->value);
105c8fb6 1417 bond->params.resend_igmp = newval->value;
d8838de7 1418
1419 return 0;
1420}
2c9839c1 1421
f3253339 1422static int bond_option_num_peer_notif_set(struct bonding *bond,
28f084cc 1423 const struct bond_opt_value *newval)
2c9839c1 1424{
ef56becb
NA		 1425 bond->params.num_peer_notif = newval->value;
1426
2c9839c1 1427 return 0;
1428}
1cc0b1e3 1429
f3253339 1430static int bond_option_all_slaves_active_set(struct bonding *bond,
28f084cc 1431 const struct bond_opt_value *newval)
1cc0b1e3 1432{
1433 struct list_head *iter;
1434 struct slave *slave;
1435
3df01162 1436 if (newval->value == bond->params.all_slaves_active)
1cc0b1e3 1437 return 0;
3df01162 1438 bond->params.all_slaves_active = newval->value;
1cc0b1e3 1439 bond_for_each_slave(bond, slave, iter) {
1440 if (!bond_is_active_slave(slave)) {
3df01162 1441 if (newval->value)
1cc0b1e3 1442 slave->inactive = 0;
1443 else
1444 slave->inactive = 1;
1445 }
1446 }
1447
1448 return 0;
1449}
7d101008 1450
f3253339 1451static int bond_option_min_links_set(struct bonding *bond,
28f084cc 1452 const struct bond_opt_value *newval)
7d101008 1453{
eac306b4
MD		 1454 netdev_dbg(bond->dev, "Setting min links value to %llu\n",
1455 newval->value);
633ddc9e 1456 bond->params.min_links = newval->value;
2477bc9a 1457 bond_set_carrier(bond);
7d101008 1458
1459 return 0;
1460}
8d836d09 1461
f3253339 1462static int bond_option_lp_interval_set(struct bonding *bond,
28f084cc 1463 const struct bond_opt_value *newval)
8d836d09 1464{
4325b374 1465 bond->params.lp_interval = newval->value;
8d836d09 1466
1467 return 0;
1468}
c13ab3ff 1469
f3253339 1470static int bond_option_pps_set(struct bonding *bond,
28f084cc 1471 const struct bond_opt_value *newval)
c13ab3ff 1472{
eac306b4
MD		 1473 netdev_dbg(bond->dev, "Setting packets per slave to %llu\n",
1474 newval->value);
aa59d851
NA		 1475 bond->params.packets_per_slave = newval->value;
1476 if (newval->value > 0) {
809fa972 1477 bond->params.reciprocal_packets_per_slave =
aa59d851 1478 reciprocal_value(newval->value);
809fa972
HFS		 1479 } else {
1480 /* reciprocal_packets_per_slave is unused if
1481 * packets_per_slave is 0 or 1, just initialize it
1482 */
1483 bond->params.reciprocal_packets_per_slave =
1484 (struct reciprocal_value) { 0 };
1485 }
c13ab3ff 1486
1487 return 0;
1488}
998e40bb 1489
3a755cd8
HL		 1490static int bond_option_lacp_active_set(struct bonding *bond,
1491 const struct bond_opt_value *newval)
1492{
1493 netdev_dbg(bond->dev, "Setting LACP active to %s (%llu)\n",
1494 newval->string, newval->value);
1495 bond->params.lacp_active = newval->value;
1496
1497 return 0;
1498}
1499
f3253339 1500static int bond_option_lacp_rate_set(struct bonding *bond,
28f084cc 1501 const struct bond_opt_value *newval)
998e40bb 1502{
eac306b4
MD		 1503 netdev_dbg(bond->dev, "Setting LACP rate to %s (%llu)\n",
1504 newval->string, newval->value);
d3131de7 1505 bond->params.lacp_fast = newval->value;
3243c47b 1506 bond_3ad_update_lacp_rate(bond);
998e40bb 1507
1508 return 0;
1509}
ec029fac 1510
f3253339 1511static int bond_option_ad_select_set(struct bonding *bond,
28f084cc 1512 const struct bond_opt_value *newval)
ec029fac 1513{
eac306b4
MD		 1514 netdev_dbg(bond->dev, "Setting ad_select to %s (%llu)\n",
1515 newval->string, newval->value);
9e5f5eeb 1516 bond->params.ad_select = newval->value;
ec029fac 1517
1518 return 0;
1519}
24089ba1 1520
f3253339 1521static int bond_option_queue_id_set(struct bonding *bond,
28f084cc 1522 const struct bond_opt_value *newval)
24089ba1
NA		 1523{
1524 struct slave *slave, *update_slave;
1525 struct net_device *sdev;
1526 struct list_head *iter;
1527 char *delim;
1528 int ret = 0;
1529 u16 qid;
1530
1531 /* delim will point to queue id if successful */
1532 delim = strchr(newval->string, ':');
1533 if (!delim)
1534 goto err_no_cmd;
1535
1536 /* Terminate string that points to device name and bump it
1537 * up one, so we can read the queue id there.
1538 */
1539 *delim = '\0';
1540 if (sscanf(++delim, "%hd\n", &qid) != 1)
1541 goto err_no_cmd;
1542
1543 /* Check buffer length, valid ifname and queue id */
c313c89e 1544 if (!dev_valid_name(newval->string) ||
24089ba1
NA		 1545 qid > bond->dev->real_num_tx_queues)
1546 goto err_no_cmd;
1547
1548 /* Get the pointer to that interface if it exists */
1549 sdev = __dev_get_by_name(dev_net(bond->dev), newval->string);
1550 if (!sdev)
1551 goto err_no_cmd;
1552
1553 /* Search for thes slave and check for duplicate qids */
1554 update_slave = NULL;
1555 bond_for_each_slave(bond, slave, iter) {
1556 if (sdev == slave->dev)
1557 /* We don't need to check the matching
1558 * slave for dups, since we're overwriting it
1559 */
1560 update_slave = slave;
1561 else if (qid && qid == slave->queue_id) {
1562 goto err_no_cmd;
1563 }
1564 }
1565
1566 if (!update_slave)
1567 goto err_no_cmd;
1568
1569 /* Actually set the qids for the slave */
1570 update_slave->queue_id = qid;
1571
1572out:
1573 return ret;
1574
1575err_no_cmd:
eac306b4 1576 netdev_dbg(bond->dev, "invalid input for queue_id set\n");
24089ba1
NA		 1577 ret = -EPERM;
1578 goto out;
1579
1580}
0e2e5b66 1581
f3253339 1582static int bond_option_slaves_set(struct bonding *bond,
28f084cc 1583 const struct bond_opt_value *newval)
0e2e5b66
NA		 1584{
1585 char command[IFNAMSIZ + 1] = { 0, };
1586 struct net_device *dev;
1587 char *ifname;
1588 int ret;
1589
1590 sscanf(newval->string, "%16s", command); /* IFNAMSIZ*/
1591 ifname = command + 1;
1592 if ((strlen(command) <= 1) ||
415d3942 1593 (command[0] != '+' && command[0] != '-') ||
0e2e5b66
NA		 1594 !dev_valid_name(ifname))
1595 goto err_no_cmd;
1596
1597 dev = __dev_get_by_name(dev_net(bond->dev), ifname);
1598 if (!dev) {
eac306b4
MD		 1599 netdev_dbg(bond->dev, "interface %s does not exist!\n",
1600 ifname);
0e2e5b66
NA		 1601 ret = -ENODEV;
1602 goto out;
1603 }
1604
1605 switch (command[0]) {
1606 case '+':
f887e54c 1607 slave_dbg(bond->dev, dev, "Enslaving interface\n");
33eaf2a6 1608 ret = bond_enslave(bond->dev, dev, NULL);
0e2e5b66
NA		 1609 break;
1610
1611 case '-':
f887e54c 1612 slave_dbg(bond->dev, dev, "Releasing interface\n");
0e2e5b66
NA		 1613 ret = bond_release(bond->dev, dev);
1614 break;
1615
1616 default:
415d3942 1617 /* should not run here. */
0e2e5b66
NA		 1618 goto err_no_cmd;
1619 }
1620
1621out:
1622 return ret;
1623
1624err_no_cmd:
2de390ba 1625 netdev_err(bond->dev, "no command found in slaves file - use +ifname or -ifname\n");
0e2e5b66
NA		 1626 ret = -EPERM;
1627 goto out;
1628}
e9f0fb88
MB		 1629
1630static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
1631 const struct bond_opt_value *newval)
1632{
eac306b4
MD		 1633 netdev_dbg(bond->dev, "Setting dynamic-lb to %s (%llu)\n",
1634 newval->string, newval->value);
e9f0fb88
MB		 1635 bond->params.tlb_dynamic_lb = newval->value;
1636
1637 return 0;
1638}
6791e466
MB		 1639
1640static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
1641 const struct bond_opt_value *newval)
1642{
eac306b4
MD		 1643 netdev_dbg(bond->dev, "Setting ad_actor_sys_prio to %llu\n",
1644 newval->value);
6791e466
MB		 1645
1646 bond->params.ad_actor_sys_prio = newval->value;
5ee14e6d
NA		 1647 bond_3ad_update_ad_actor_settings(bond);
1648
6791e466
MB		 1649 return 0;
1650}
74514957
MB		 1651
1652static int bond_option_ad_actor_system_set(struct bonding *bond,
1653 const struct bond_opt_value *newval)
1654{
1655 u8 macaddr[ETH_ALEN];
171a42c3 1656 u8 *mac;
74514957 1657
171a42c3 1658 if (newval->string) {
ce5c144f 1659 if (!mac_pton(newval->string, macaddr))
171a42c3
AG		 1660 goto err;
1661 mac = macaddr;
1662 } else {
1663 mac = (u8 *)&newval->value;
74514957
MB		 1664 }
1665
1c15b05b 1666 if (is_multicast_ether_addr(mac))
171a42c3
AG		 1667 goto err;
1668
eac306b4 1669 netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac);
171a42c3 1670 ether_addr_copy(bond->params.ad_actor_system, mac);
5ee14e6d
NA		 1671 bond_3ad_update_ad_actor_settings(bond);
1672
74514957 1673 return 0;
171a42c3
AG		 1674
1675err:
f887e54c 1676 netdev_err(bond->dev, "Invalid ad_actor_system MAC address.\n");
171a42c3 1677 return -EINVAL;
74514957 1678}
d22a5fc0
MB		 1679
1680static int bond_option_ad_user_port_key_set(struct bonding *bond,
1681 const struct bond_opt_value *newval)
1682{
eac306b4
MD		 1683 netdev_dbg(bond->dev, "Setting ad_user_port_key to %llu\n",
1684 newval->value);
d22a5fc0
MB		 1685
1686 bond->params.ad_user_port_key = newval->value;
1687 return 0;
1688}
Linux 6.x block layer and io_uring tree(s)