2 * Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, see <http://www.gnu.org/licenses/>.
17 * The full GNU General Public License is included in this distribution in the
18 * file called LICENSE.
22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
24 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/device.h>
27 #include <linux/sched.h>
29 #include <linux/types.h>
30 #include <linux/string.h>
31 #include <linux/netdevice.h>
32 #include <linux/inetdevice.h>
34 #include <linux/sysfs.h>
35 #include <linux/ctype.h>
36 #include <linux/inet.h>
37 #include <linux/rtnetlink.h>
38 #include <linux/etherdevice.h>
39 #include <net/net_namespace.h>
40 #include <net/netns/generic.h>
41 #include <linux/nsproxy.h>
45 #define to_dev(obj) container_of(obj, struct device, kobj)
46 #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd))))
49 * "show" function for the bond_masters attribute.
50 * The class parameter is ignored.
52 static ssize_t bonding_show_bonds(struct class *cls,
53 struct class_attribute *attr,
57 container_of(attr, struct bond_net, class_attr_bonding_masters);
63 list_for_each_entry(bond, &bn->dev_list, bond_list) {
64 if (res > (PAGE_SIZE - IFNAMSIZ)) {
65 /* not enough space for another interface name */
66 if ((PAGE_SIZE - res) > 10)
68 res += sprintf(buf + res, "++more++ ");
71 res += sprintf(buf + res, "%s ", bond->dev->name);
74 buf[res-1] = '\n'; /* eat the leftover space */
80 static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname)
84 list_for_each_entry(bond, &bn->dev_list, bond_list) {
85 if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0)
92 * "store" function for the bond_masters attribute. This is what
93 * creates and deletes entire bonds.
95 * The class parameter is ignored.
99 static ssize_t bonding_store_bonds(struct class *cls,
100 struct class_attribute *attr,
101 const char *buffer, size_t count)
103 struct bond_net *bn =
104 container_of(attr, struct bond_net, class_attr_bonding_masters);
105 char command[IFNAMSIZ + 1] = {0, };
109 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
110 ifname = command + 1;
111 if ((strlen(command) <= 1) ||
112 !dev_valid_name(ifname))
115 if (command[0] == '+') {
116 pr_info("%s is being created...\n", ifname);
117 rv = bond_create(bn->net, ifname);
120 pr_info("%s already exists\n", ifname);
122 pr_info("%s creation failed\n", ifname);
125 } else if (command[0] == '-') {
126 struct net_device *bond_dev;
129 bond_dev = bond_get_by_name(bn, ifname);
131 pr_info("%s is being deleted...\n", ifname);
132 unregister_netdevice(bond_dev);
134 pr_err("unable to delete non-existent %s\n", ifname);
141 /* Always return either count or an error. If you return 0, you'll
142 * get called forever, which is bad.
147 pr_err("no command found in bonding_masters - use +ifname or -ifname\n");
151 /* class attribute for bond_masters file. This ends up in /sys/class/net */
152 static const struct class_attribute class_attr_bonding_masters = {
154 .name = "bonding_masters",
155 .mode = S_IWUSR | S_IRUGO,
157 .show = bonding_show_bonds,
158 .store = bonding_store_bonds,
162 * Show the slaves in the current bond.
164 static ssize_t bonding_show_slaves(struct device *d,
165 struct device_attribute *attr, char *buf)
167 struct bonding *bond = to_bond(d);
168 struct list_head *iter;
173 return restart_syscall();
175 bond_for_each_slave(bond, slave, iter) {
176 if (res > (PAGE_SIZE - IFNAMSIZ)) {
177 /* not enough space for another interface name */
178 if ((PAGE_SIZE - res) > 10)
179 res = PAGE_SIZE - 10;
180 res += sprintf(buf + res, "++more++ ");
183 res += sprintf(buf + res, "%s ", slave->dev->name);
189 buf[res-1] = '\n'; /* eat the leftover space */
195 * Set the slaves in the current bond.
196 * This is supposed to be only thin wrapper for bond_enslave and bond_release.
197 * All hard work should be done there.
199 static ssize_t bonding_store_slaves(struct device *d,
200 struct device_attribute *attr,
201 const char *buffer, size_t count)
203 struct bonding *bond = to_bond(d);
206 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_SLAVES, (char *)buffer);
212 static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves,
213 bonding_store_slaves);
216 * Show and set the bonding mode. The bond interface must be down to
219 static ssize_t bonding_show_mode(struct device *d,
220 struct device_attribute *attr, char *buf)
222 struct bonding *bond = to_bond(d);
223 const struct bond_opt_value *val;
225 val = bond_opt_get_val(BOND_OPT_MODE, bond->params.mode);
227 return sprintf(buf, "%s %d\n", val->string, bond->params.mode);
230 static ssize_t bonding_store_mode(struct device *d,
231 struct device_attribute *attr,
232 const char *buf, size_t count)
234 struct bonding *bond = to_bond(d);
237 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MODE, (char *)buf);
243 static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
244 bonding_show_mode, bonding_store_mode);
247 * Show and set the bonding transmit hash method.
249 static ssize_t bonding_show_xmit_hash(struct device *d,
250 struct device_attribute *attr,
253 struct bonding *bond = to_bond(d);
254 const struct bond_opt_value *val;
256 val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy);
258 return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy);
261 static ssize_t bonding_store_xmit_hash(struct device *d,
262 struct device_attribute *attr,
263 const char *buf, size_t count)
265 struct bonding *bond = to_bond(d);
268 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_XMIT_HASH, (char *)buf);
274 static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR,
275 bonding_show_xmit_hash, bonding_store_xmit_hash);
278 * Show and set arp_validate.
280 static ssize_t bonding_show_arp_validate(struct device *d,
281 struct device_attribute *attr,
284 struct bonding *bond = to_bond(d);
285 const struct bond_opt_value *val;
287 val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE,
288 bond->params.arp_validate);
290 return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate);
293 static ssize_t bonding_store_arp_validate(struct device *d,
294 struct device_attribute *attr,
295 const char *buf, size_t count)
297 struct bonding *bond = to_bond(d);
300 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_VALIDATE, (char *)buf);
307 static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate,
308 bonding_store_arp_validate);
310 * Show and set arp_all_targets.
312 static ssize_t bonding_show_arp_all_targets(struct device *d,
313 struct device_attribute *attr,
316 struct bonding *bond = to_bond(d);
317 const struct bond_opt_value *val;
319 val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS,
320 bond->params.arp_all_targets);
321 return sprintf(buf, "%s %d\n",
322 val->string, bond->params.arp_all_targets);
325 static ssize_t bonding_store_arp_all_targets(struct device *d,
326 struct device_attribute *attr,
327 const char *buf, size_t count)
329 struct bonding *bond = to_bond(d);
332 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_ALL_TARGETS, (char *)buf);
339 static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR,
340 bonding_show_arp_all_targets, bonding_store_arp_all_targets);
343 * Show and store fail_over_mac. User only allowed to change the
344 * value when there are no slaves.
346 static ssize_t bonding_show_fail_over_mac(struct device *d,
347 struct device_attribute *attr,
350 struct bonding *bond = to_bond(d);
351 const struct bond_opt_value *val;
353 val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
354 bond->params.fail_over_mac);
356 return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac);
359 static ssize_t bonding_store_fail_over_mac(struct device *d,
360 struct device_attribute *attr,
361 const char *buf, size_t count)
363 struct bonding *bond = to_bond(d);
366 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_FAIL_OVER_MAC, (char *)buf);
373 static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR,
374 bonding_show_fail_over_mac, bonding_store_fail_over_mac);
377 * Show and set the arp timer interval. There are two tricky bits
378 * here. First, if ARP monitoring is activated, then we must disable
379 * MII monitoring. Second, if the ARP timer isn't running, we must
382 static ssize_t bonding_show_arp_interval(struct device *d,
383 struct device_attribute *attr,
386 struct bonding *bond = to_bond(d);
388 return sprintf(buf, "%d\n", bond->params.arp_interval);
391 static ssize_t bonding_store_arp_interval(struct device *d,
392 struct device_attribute *attr,
393 const char *buf, size_t count)
395 struct bonding *bond = to_bond(d);
398 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_INTERVAL, (char *)buf);
404 static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR,
405 bonding_show_arp_interval, bonding_store_arp_interval);
408 * Show and set the arp targets.
410 static ssize_t bonding_show_arp_targets(struct device *d,
411 struct device_attribute *attr,
414 struct bonding *bond = to_bond(d);
417 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
418 if (bond->params.arp_targets[i])
419 res += sprintf(buf + res, "%pI4 ",
420 &bond->params.arp_targets[i]);
423 buf[res-1] = '\n'; /* eat the leftover space */
428 static ssize_t bonding_store_arp_targets(struct device *d,
429 struct device_attribute *attr,
430 const char *buf, size_t count)
432 struct bonding *bond = to_bond(d);
435 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_TARGETS, (char *)buf);
441 static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets);
444 * Show and set the up and down delays. These must be multiples of the
445 * MII monitoring value, and are stored internally as the multiplier.
446 * Thus, we must translate to MS for the real world.
448 static ssize_t bonding_show_downdelay(struct device *d,
449 struct device_attribute *attr,
452 struct bonding *bond = to_bond(d);
454 return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon);
457 static ssize_t bonding_store_downdelay(struct device *d,
458 struct device_attribute *attr,
459 const char *buf, size_t count)
461 struct bonding *bond = to_bond(d);
464 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_DOWNDELAY, (char *)buf);
470 static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR,
471 bonding_show_downdelay, bonding_store_downdelay);
473 static ssize_t bonding_show_updelay(struct device *d,
474 struct device_attribute *attr,
477 struct bonding *bond = to_bond(d);
479 return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon);
483 static ssize_t bonding_store_updelay(struct device *d,
484 struct device_attribute *attr,
485 const char *buf, size_t count)
487 struct bonding *bond = to_bond(d);
490 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_UPDELAY, (char *)buf);
496 static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR,
497 bonding_show_updelay, bonding_store_updelay);
500 * Show and set the LACP interval. Interface must be down, and the mode
501 * must be set to 802.3ad mode.
503 static ssize_t bonding_show_lacp(struct device *d,
504 struct device_attribute *attr,
507 struct bonding *bond = to_bond(d);
508 const struct bond_opt_value *val;
510 val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast);
512 return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast);
515 static ssize_t bonding_store_lacp(struct device *d,
516 struct device_attribute *attr,
517 const char *buf, size_t count)
519 struct bonding *bond = to_bond(d);
522 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_LACP_RATE, (char *)buf);
528 static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR,
529 bonding_show_lacp, bonding_store_lacp);
531 static ssize_t bonding_show_min_links(struct device *d,
532 struct device_attribute *attr,
535 struct bonding *bond = to_bond(d);
537 return sprintf(buf, "%u\n", bond->params.min_links);
540 static ssize_t bonding_store_min_links(struct device *d,
541 struct device_attribute *attr,
542 const char *buf, size_t count)
544 struct bonding *bond = to_bond(d);
547 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MINLINKS, (char *)buf);
553 static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR,
554 bonding_show_min_links, bonding_store_min_links);
556 static ssize_t bonding_show_ad_select(struct device *d,
557 struct device_attribute *attr,
560 struct bonding *bond = to_bond(d);
561 const struct bond_opt_value *val;
563 val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select);
565 return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select);
569 static ssize_t bonding_store_ad_select(struct device *d,
570 struct device_attribute *attr,
571 const char *buf, size_t count)
573 struct bonding *bond = to_bond(d);
576 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_AD_SELECT, (char *)buf);
582 static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR,
583 bonding_show_ad_select, bonding_store_ad_select);
586 * Show and set the number of peer notifications to send after a failover event.
588 static ssize_t bonding_show_num_peer_notif(struct device *d,
589 struct device_attribute *attr,
592 struct bonding *bond = to_bond(d);
593 return sprintf(buf, "%d\n", bond->params.num_peer_notif);
596 static ssize_t bonding_store_num_peer_notif(struct device *d,
597 struct device_attribute *attr,
598 const char *buf, size_t count)
600 struct bonding *bond = to_bond(d);
603 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_NUM_PEER_NOTIF, (char *)buf);
609 static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR,
610 bonding_show_num_peer_notif, bonding_store_num_peer_notif);
611 static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR,
612 bonding_show_num_peer_notif, bonding_store_num_peer_notif);
615 * Show and set the MII monitor interval. There are two tricky bits
616 * here. First, if MII monitoring is activated, then we must disable
617 * ARP monitoring. Second, if the timer isn't running, we must
620 static ssize_t bonding_show_miimon(struct device *d,
621 struct device_attribute *attr,
624 struct bonding *bond = to_bond(d);
626 return sprintf(buf, "%d\n", bond->params.miimon);
629 static ssize_t bonding_store_miimon(struct device *d,
630 struct device_attribute *attr,
631 const char *buf, size_t count)
633 struct bonding *bond = to_bond(d);
636 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MIIMON, (char *)buf);
642 static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR,
643 bonding_show_miimon, bonding_store_miimon);
646 * Show and set the primary slave. The store function is much
647 * simpler than bonding_store_slaves function because it only needs to
648 * handle one interface name.
649 * The bond must be a mode that supports a primary for this be
652 static ssize_t bonding_show_primary(struct device *d,
653 struct device_attribute *attr,
657 struct bonding *bond = to_bond(d);
659 if (bond->primary_slave)
660 count = sprintf(buf, "%s\n", bond->primary_slave->dev->name);
665 static ssize_t bonding_store_primary(struct device *d,
666 struct device_attribute *attr,
667 const char *buf, size_t count)
669 struct bonding *bond = to_bond(d);
672 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PRIMARY, (char *)buf);
678 static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR,
679 bonding_show_primary, bonding_store_primary);
682 * Show and set the primary_reselect flag.
684 static ssize_t bonding_show_primary_reselect(struct device *d,
685 struct device_attribute *attr,
688 struct bonding *bond = to_bond(d);
689 const struct bond_opt_value *val;
691 val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
692 bond->params.primary_reselect);
694 return sprintf(buf, "%s %d\n",
695 val->string, bond->params.primary_reselect);
698 static ssize_t bonding_store_primary_reselect(struct device *d,
699 struct device_attribute *attr,
700 const char *buf, size_t count)
702 struct bonding *bond = to_bond(d);
705 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PRIMARY_RESELECT,
712 static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR,
713 bonding_show_primary_reselect,
714 bonding_store_primary_reselect);
717 * Show and set the use_carrier flag.
719 static ssize_t bonding_show_carrier(struct device *d,
720 struct device_attribute *attr,
723 struct bonding *bond = to_bond(d);
725 return sprintf(buf, "%d\n", bond->params.use_carrier);
728 static ssize_t bonding_store_carrier(struct device *d,
729 struct device_attribute *attr,
730 const char *buf, size_t count)
732 struct bonding *bond = to_bond(d);
735 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_USE_CARRIER, (char *)buf);
741 static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR,
742 bonding_show_carrier, bonding_store_carrier);
746 * Show and set currently active_slave.
748 static ssize_t bonding_show_active_slave(struct device *d,
749 struct device_attribute *attr,
752 struct bonding *bond = to_bond(d);
753 struct net_device *slave_dev;
757 slave_dev = bond_option_active_slave_get_rcu(bond);
759 count = sprintf(buf, "%s\n", slave_dev->name);
765 static ssize_t bonding_store_active_slave(struct device *d,
766 struct device_attribute *attr,
767 const char *buf, size_t count)
769 struct bonding *bond = to_bond(d);
772 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ACTIVE_SLAVE, (char *)buf);
778 static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR,
779 bonding_show_active_slave, bonding_store_active_slave);
783 * Show link status of the bond interface.
785 static ssize_t bonding_show_mii_status(struct device *d,
786 struct device_attribute *attr,
789 struct bonding *bond = to_bond(d);
791 return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down");
793 static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
796 * Show current 802.3ad aggregator ID.
798 static ssize_t bonding_show_ad_aggregator(struct device *d,
799 struct device_attribute *attr,
803 struct bonding *bond = to_bond(d);
805 if (bond->params.mode == BOND_MODE_8023AD) {
806 struct ad_info ad_info;
807 count = sprintf(buf, "%d\n",
808 bond_3ad_get_active_agg_info(bond, &ad_info)
809 ? 0 : ad_info.aggregator_id);
814 static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL);
818 * Show number of active 802.3ad ports.
820 static ssize_t bonding_show_ad_num_ports(struct device *d,
821 struct device_attribute *attr,
825 struct bonding *bond = to_bond(d);
827 if (bond->params.mode == BOND_MODE_8023AD) {
828 struct ad_info ad_info;
829 count = sprintf(buf, "%d\n",
830 bond_3ad_get_active_agg_info(bond, &ad_info)
831 ? 0 : ad_info.ports);
836 static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL);
840 * Show current 802.3ad actor key.
842 static ssize_t bonding_show_ad_actor_key(struct device *d,
843 struct device_attribute *attr,
847 struct bonding *bond = to_bond(d);
849 if (bond->params.mode == BOND_MODE_8023AD) {
850 struct ad_info ad_info;
851 count = sprintf(buf, "%d\n",
852 bond_3ad_get_active_agg_info(bond, &ad_info)
853 ? 0 : ad_info.actor_key);
858 static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL);
862 * Show current 802.3ad partner key.
864 static ssize_t bonding_show_ad_partner_key(struct device *d,
865 struct device_attribute *attr,
869 struct bonding *bond = to_bond(d);
871 if (bond->params.mode == BOND_MODE_8023AD) {
872 struct ad_info ad_info;
873 count = sprintf(buf, "%d\n",
874 bond_3ad_get_active_agg_info(bond, &ad_info)
875 ? 0 : ad_info.partner_key);
880 static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL);
884 * Show current 802.3ad partner mac.
886 static ssize_t bonding_show_ad_partner_mac(struct device *d,
887 struct device_attribute *attr,
891 struct bonding *bond = to_bond(d);
893 if (bond->params.mode == BOND_MODE_8023AD) {
894 struct ad_info ad_info;
895 if (!bond_3ad_get_active_agg_info(bond, &ad_info))
896 count = sprintf(buf, "%pM\n", ad_info.partner_system);
901 static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL);
904 * Show the queue_ids of the slaves in the current bond.
906 static ssize_t bonding_show_queue_id(struct device *d,
907 struct device_attribute *attr,
910 struct bonding *bond = to_bond(d);
911 struct list_head *iter;
916 return restart_syscall();
918 bond_for_each_slave(bond, slave, iter) {
919 if (res > (PAGE_SIZE - IFNAMSIZ - 6)) {
920 /* not enough space for another interface_name:queue_id pair */
921 if ((PAGE_SIZE - res) > 10)
922 res = PAGE_SIZE - 10;
923 res += sprintf(buf + res, "++more++ ");
926 res += sprintf(buf + res, "%s:%d ",
927 slave->dev->name, slave->queue_id);
930 buf[res-1] = '\n'; /* eat the leftover space */
938 * Set the queue_ids of the slaves in the current bond. The bond
939 * interface must be enslaved for this to work.
941 static ssize_t bonding_store_queue_id(struct device *d,
942 struct device_attribute *attr,
943 const char *buffer, size_t count)
945 struct bonding *bond = to_bond(d);
948 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_QUEUE_ID, (char *)buffer);
954 static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id,
955 bonding_store_queue_id);
959 * Show and set the all_slaves_active flag.
961 static ssize_t bonding_show_slaves_active(struct device *d,
962 struct device_attribute *attr,
965 struct bonding *bond = to_bond(d);
967 return sprintf(buf, "%d\n", bond->params.all_slaves_active);
970 static ssize_t bonding_store_slaves_active(struct device *d,
971 struct device_attribute *attr,
972 const char *buf, size_t count)
974 struct bonding *bond = to_bond(d);
977 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ALL_SLAVES_ACTIVE,
984 static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR,
985 bonding_show_slaves_active, bonding_store_slaves_active);
988 * Show and set the number of IGMP membership reports to send on link failure
990 static ssize_t bonding_show_resend_igmp(struct device *d,
991 struct device_attribute *attr,
994 struct bonding *bond = to_bond(d);
996 return sprintf(buf, "%d\n", bond->params.resend_igmp);
999 static ssize_t bonding_store_resend_igmp(struct device *d,
1000 struct device_attribute *attr,
1001 const char *buf, size_t count)
1003 struct bonding *bond = to_bond(d);
1006 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_RESEND_IGMP, (char *)buf);
1013 static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR,
1014 bonding_show_resend_igmp, bonding_store_resend_igmp);
1017 static ssize_t bonding_show_lp_interval(struct device *d,
1018 struct device_attribute *attr,
1021 struct bonding *bond = to_bond(d);
1022 return sprintf(buf, "%d\n", bond->params.lp_interval);
1025 static ssize_t bonding_store_lp_interval(struct device *d,
1026 struct device_attribute *attr,
1027 const char *buf, size_t count)
1029 struct bonding *bond = to_bond(d);
1032 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_LP_INTERVAL, (char *)buf);
1039 static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR,
1040 bonding_show_lp_interval, bonding_store_lp_interval);
1042 static ssize_t bonding_show_packets_per_slave(struct device *d,
1043 struct device_attribute *attr,
1046 struct bonding *bond = to_bond(d);
1047 unsigned int packets_per_slave = bond->params.packets_per_slave;
1048 return sprintf(buf, "%u\n", packets_per_slave);
1051 static ssize_t bonding_store_packets_per_slave(struct device *d,
1052 struct device_attribute *attr,
1053 const char *buf, size_t count)
1055 struct bonding *bond = to_bond(d);
1058 ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PACKETS_PER_SLAVE,
1066 static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR,
1067 bonding_show_packets_per_slave,
1068 bonding_store_packets_per_slave);
1070 static struct attribute *per_bond_attrs[] = {
1071 &dev_attr_slaves.attr,
1072 &dev_attr_mode.attr,
1073 &dev_attr_fail_over_mac.attr,
1074 &dev_attr_arp_validate.attr,
1075 &dev_attr_arp_all_targets.attr,
1076 &dev_attr_arp_interval.attr,
1077 &dev_attr_arp_ip_target.attr,
1078 &dev_attr_downdelay.attr,
1079 &dev_attr_updelay.attr,
1080 &dev_attr_lacp_rate.attr,
1081 &dev_attr_ad_select.attr,
1082 &dev_attr_xmit_hash_policy.attr,
1083 &dev_attr_num_grat_arp.attr,
1084 &dev_attr_num_unsol_na.attr,
1085 &dev_attr_miimon.attr,
1086 &dev_attr_primary.attr,
1087 &dev_attr_primary_reselect.attr,
1088 &dev_attr_use_carrier.attr,
1089 &dev_attr_active_slave.attr,
1090 &dev_attr_mii_status.attr,
1091 &dev_attr_ad_aggregator.attr,
1092 &dev_attr_ad_num_ports.attr,
1093 &dev_attr_ad_actor_key.attr,
1094 &dev_attr_ad_partner_key.attr,
1095 &dev_attr_ad_partner_mac.attr,
1096 &dev_attr_queue_id.attr,
1097 &dev_attr_all_slaves_active.attr,
1098 &dev_attr_resend_igmp.attr,
1099 &dev_attr_min_links.attr,
1100 &dev_attr_lp_interval.attr,
1101 &dev_attr_packets_per_slave.attr,
1105 static struct attribute_group bonding_group = {
1107 .attrs = per_bond_attrs,
1111 * Initialize sysfs. This sets up the bonding_masters file in
1114 int bond_create_sysfs(struct bond_net *bn)
1118 bn->class_attr_bonding_masters = class_attr_bonding_masters;
1119 sysfs_attr_init(&bn->class_attr_bonding_masters.attr);
1121 ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters,
1124 * Permit multiple loads of the module by ignoring failures to
1125 * create the bonding_masters sysfs file. Bonding devices
1126 * created by second or subsequent loads of the module will
1127 * not be listed in, or controllable by, bonding_masters, but
1128 * will have the usual "bonding" sysfs directory.
1130 * This is done to preserve backwards compatibility for
1131 * initscripts/sysconfig, which load bonding multiple times to
1132 * configure multiple bonding devices.
1134 if (ret == -EEXIST) {
1135 /* Is someone being kinky and naming a device bonding_master? */
1136 if (__dev_get_by_name(bn->net,
1137 class_attr_bonding_masters.attr.name))
1138 pr_err("network device named %s already exists in sysfs\n",
1139 class_attr_bonding_masters.attr.name);
1148 * Remove /sys/class/net/bonding_masters.
1150 void bond_destroy_sysfs(struct bond_net *bn)
1152 netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net);
1156 * Initialize sysfs for each bond. This sets up and registers
1157 * the 'bondctl' directory for each individual bond under /sys/class/net.
1159 void bond_prepare_sysfs_group(struct bonding *bond)
1161 bond->dev->sysfs_groups[0] = &bonding_group;