21 static int bond_option_active_slave_set(struct bonding *bond,
23 static int bond_option_miimon_set(struct bonding *bond,
25 static int bond_option_updelay_set(struct bonding *bond,
27 static int bond_option_downdelay_set(struct bonding *bond,
29 static int bond_option_use_carrier_set(struct bonding *bond,
31 static int bond_option_arp_interval_set(struct bonding *bond,
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,
37 static int bond_option_arp_validate_set(struct bonding *bond,
39 static int bond_option_arp_all_targets_set(struct bonding *bond,
41 static int bond_option_primary_set(struct bonding *bond,
43 static int bond_option_primary_reselect_set(struct bonding *bond,
45 static int bond_option_fail_over_mac_set(struct bonding *bond,
47 static int bond_option_xmit_hash_policy_set(struct bonding *bond,
49 static int bond_option_resend_igmp_set(struct bonding *bond,
51 static int bond_option_num_peer_notif_set(struct bonding *bond,
53 static int bond_option_all_slaves_active_set(struct bonding *bond,
55 static int bond_option_min_links_set(struct bonding *bond,
57 static int bond_option_lp_interval_set(struct bonding *bond,
59 static int bond_option_pps_set(struct bonding *bond,
61 static int bond_option_lacp_rate_set(struct bonding *bond,
63 static int bond_option_ad_select_set(struct bonding *bond,
65 static int bond_option_queue_id_set(struct bonding *bond,
67 static int bond_option_mode_set(struct bonding *bond,
69 static int bond_option_slaves_set(struct bonding *bond,
71 static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
520 static int bond_opt_check_deps(struct bonding *bond,  in bond_opt_check_deps()  argument
523 	struct bond_params *params = &bond->params;  in bond_opt_check_deps()
527 	if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond))  in bond_opt_check_deps()
529 	if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP))  in bond_opt_check_deps()
535 static void bond_opt_dep_print(struct bonding *bond,  in bond_opt_dep_print()  argument
541 	params = &bond->params;  in bond_opt_dep_print()
544 		netdev_err(bond->dev, "option %s: mode dependency failed, not supported in mode %s(%llu)\n",  in bond_opt_dep_print()
548 static void bond_opt_error_interpret(struct bonding *bond,  in bond_opt_error_interpret()  argument
563 				netdev_err(bond->dev, "option %s: invalid value (%s)\n",  in bond_opt_error_interpret()
566 				netdev_err(bond->dev, "option %s: invalid value (%llu)\n",  in bond_opt_error_interpret()
574 		netdev_err(bond->dev, "option %s: allowed values %llu - %llu\n",  in bond_opt_error_interpret()
578 		bond_opt_dep_print(bond, opt);  in bond_opt_error_interpret()
581 		netdev_err(bond->dev, "option %s: unable to set because the bond device has slaves\n",  in bond_opt_error_interpret()
585 		netdev_err(bond->dev, "option %s: unable to set because the bond device is up\n",  in bond_opt_error_interpret()
603 int __bond_opt_set(struct bonding *bond,  in __bond_opt_set()  argument
615 	ret = bond_opt_check_deps(bond, opt);  in __bond_opt_set()
623 	ret = opt->set(bond, retval);  in __bond_opt_set()
626 		bond_opt_error_interpret(bond, opt, ret, val);  in __bond_opt_set()
627 	else if (bond->dev->reg_state == NETREG_REGISTERED)  in __bond_opt_set()
628 		call_netdevice_notifiers(NETDEV_CHANGEINFODATA, bond->dev);  in __bond_opt_set()
642 int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf)  in bond_opt_tryset_rtnl()  argument
650 	ret = __bond_opt_set(bond, option, &optval);  in bond_opt_tryset_rtnl()
671 static int bond_option_mode_set(struct bonding *bond,  in bond_option_mode_set()  argument
674 	if (!bond_mode_uses_arp(newval->value) && bond->params.arp_interval) {  in bond_option_mode_set()
675 		netdev_info(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",  in bond_option_mode_set()
678 		bond->params.arp_interval = 0;  in bond_option_mode_set()
680 		bond->params.miimon = BOND_DEFAULT_MIIMON;  in bond_option_mode_set()
681 		netdev_info(bond->dev, "Setting MII monitoring interval to %d\n",  in bond_option_mode_set()
682 			    bond->params.miimon);  in bond_option_mode_set()
686 	bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;  in bond_option_mode_set()
687 	bond->params.mode = newval->value;  in bond_option_mode_set()
692 static struct net_device *__bond_option_active_slave_get(struct bonding *bond,  in __bond_option_active_slave_get()  argument
695 	return bond_uses_primary(bond) && slave ? slave->dev : NULL;  in __bond_option_active_slave_get()
698 struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond)  in bond_option_active_slave_get_rcu()  argument
700 	struct slave *slave = rcu_dereference(bond->curr_active_slave);  in bond_option_active_slave_get_rcu()
702 	return __bond_option_active_slave_get(bond, slave);  in bond_option_active_slave_get_rcu()
705 static int bond_option_active_slave_set(struct bonding *bond,  in bond_option_active_slave_set()  argument
716 		slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname);  in bond_option_active_slave_set()
723 			netdev_err(bond->dev, "Device %s is not bonding slave\n",  in bond_option_active_slave_set()
728 		if (bond->dev != netdev_master_upper_dev_get(slave_dev)) {  in bond_option_active_slave_set()
729 			netdev_err(bond->dev, "Device %s is not our slave\n",  in bond_option_active_slave_set()
738 		netdev_info(bond->dev, "Clearing current active slave\n");  in bond_option_active_slave_set()
739 		RCU_INIT_POINTER(bond->curr_active_slave, NULL);  in bond_option_active_slave_set()
740 		bond_select_active_slave(bond);  in bond_option_active_slave_set()
742 		struct slave *old_active = rtnl_dereference(bond->curr_active_slave);  in bond_option_active_slave_set()
749 			netdev_info(bond->dev, "%s is already the current active slave\n",  in bond_option_active_slave_set()
754 				netdev_info(bond->dev, "Setting %s as active slave\n",  in bond_option_active_slave_set()
756 				bond_change_active_slave(bond, new_active);  in bond_option_active_slave_set()
758 …	netdev_err(bond->dev, "Could not set %s as active slave; either %s is down or the link is down\n",  in bond_option_active_slave_set()
774 static int bond_option_miimon_set(struct bonding *bond,  in bond_option_miimon_set()  argument
777 	netdev_info(bond->dev, "Setting MII monitoring interval to %llu\n",  in bond_option_miimon_set()
779 	bond->params.miimon = newval->value;  in bond_option_miimon_set()
780 	if (bond->params.updelay)  in bond_option_miimon_set()
781 …netdev_info(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\…  in bond_option_miimon_set()
782 			bond->params.updelay * bond->params.miimon);  in bond_option_miimon_set()
783 	if (bond->params.downdelay)  in bond_option_miimon_set()
784 …netdev_info(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon valu…  in bond_option_miimon_set()
785 			    bond->params.downdelay * bond->params.miimon);  in bond_option_miimon_set()
786 	if (newval->value && bond->params.arp_interval) {  in bond_option_miimon_set()
787 …netdev_info(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitori…  in bond_option_miimon_set()
788 		bond->params.arp_interval = 0;  in bond_option_miimon_set()
789 		if (bond->params.arp_validate)  in bond_option_miimon_set()
790 			bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;  in bond_option_miimon_set()
792 	if (bond->dev->flags & IFF_UP) {  in bond_option_miimon_set()
799 			cancel_delayed_work_sync(&bond->mii_work);  in bond_option_miimon_set()
801 			cancel_delayed_work_sync(&bond->arp_work);  in bond_option_miimon_set()
802 			queue_delayed_work(bond->wq, &bond->mii_work, 0);  in bond_option_miimon_set()
813 static int bond_option_updelay_set(struct bonding *bond,  in bond_option_updelay_set()  argument
818 	if (!bond->params.miimon) {  in bond_option_updelay_set()
819 		netdev_err(bond->dev, "Unable to set up delay as MII monitoring is disabled\n");  in bond_option_updelay_set()
822 	if ((value % bond->params.miimon) != 0) {  in bond_option_updelay_set()
823 …netdev_warn(bond->dev, "up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n…  in bond_option_updelay_set()
824 			    value, bond->params.miimon,  in bond_option_updelay_set()
825 			    (value / bond->params.miimon) *  in bond_option_updelay_set()
826 			    bond->params.miimon);  in bond_option_updelay_set()
828 	bond->params.updelay = value / bond->params.miimon;  in bond_option_updelay_set()
829 	netdev_info(bond->dev, "Setting up delay to %d\n",  in bond_option_updelay_set()
830 		    bond->params.updelay * bond->params.miimon);  in bond_option_updelay_set()
835 static int bond_option_downdelay_set(struct bonding *bond,  in bond_option_downdelay_set()  argument
840 	if (!bond->params.miimon) {  in bond_option_downdelay_set()
841 		netdev_err(bond->dev, "Unable to set down delay as MII monitoring is disabled\n");  in bond_option_downdelay_set()
844 	if ((value % bond->params.miimon) != 0) {  in bond_option_downdelay_set()
845 …netdev_warn(bond->dev, "down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n…  in bond_option_downdelay_set()
846 			    value, bond->params.miimon,  in bond_option_downdelay_set()
847 			    (value / bond->params.miimon) *  in bond_option_downdelay_set()
848 			    bond->params.miimon);  in bond_option_downdelay_set()
850 	bond->params.downdelay = value / bond->params.miimon;  in bond_option_downdelay_set()
851 	netdev_info(bond->dev, "Setting down delay to %d\n",  in bond_option_downdelay_set()
852 		    bond->params.downdelay * bond->params.miimon);  in bond_option_downdelay_set()
857 static int bond_option_use_carrier_set(struct bonding *bond,  in bond_option_use_carrier_set()  argument
860 	netdev_info(bond->dev, "Setting use_carrier to %llu\n",  in bond_option_use_carrier_set()
862 	bond->params.use_carrier = newval->value;  in bond_option_use_carrier_set()
871 static int bond_option_arp_interval_set(struct bonding *bond,  in bond_option_arp_interval_set()  argument
874 	netdev_info(bond->dev, "Setting ARP monitoring interval to %llu\n",  in bond_option_arp_interval_set()
876 	bond->params.arp_interval = newval->value;  in bond_option_arp_interval_set()
878 		if (bond->params.miimon) {  in bond_option_arp_interval_set()
879 …netdev_info(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitorin…  in bond_option_arp_interval_set()
880 			bond->params.miimon = 0;  in bond_option_arp_interval_set()
882 		if (!bond->params.arp_targets[0])  in bond_option_arp_interval_set()
883 …netdev_info(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n");  in bond_option_arp_interval_set()
885 	if (bond->dev->flags & IFF_UP) {  in bond_option_arp_interval_set()
892 			if (bond->params.arp_validate)  in bond_option_arp_interval_set()
893 				bond->recv_probe = NULL;  in bond_option_arp_interval_set()
894 			cancel_delayed_work_sync(&bond->arp_work);  in bond_option_arp_interval_set()
897 			bond->recv_probe = bond_arp_rcv;  in bond_option_arp_interval_set()
898 			cancel_delayed_work_sync(&bond->mii_work);  in bond_option_arp_interval_set()
899 			queue_delayed_work(bond->wq, &bond->arp_work, 0);  in bond_option_arp_interval_set()
906 static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot,  in _bond_options_arp_ip_target_set()  argument
910 	__be32 *targets = bond->params.arp_targets;  in _bond_options_arp_ip_target_set()
915 		bond_for_each_slave(bond, slave, iter)  in _bond_options_arp_ip_target_set()
921 static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)  in _bond_option_arp_ip_target_add()  argument
923 	__be32 *targets = bond->params.arp_targets;  in _bond_option_arp_ip_target_add()
927 		netdev_err(bond->dev, "invalid ARP target %pI4 specified for addition\n",  in _bond_option_arp_ip_target_add()
933 		netdev_err(bond->dev, "ARP target %pI4 is already present\n",  in _bond_option_arp_ip_target_add()
940 		netdev_err(bond->dev, "ARP target table is full!\n");  in _bond_option_arp_ip_target_add()
944 	netdev_info(bond->dev, "Adding ARP target %pI4\n", &target);  in _bond_option_arp_ip_target_add()
946 	_bond_options_arp_ip_target_set(bond, ind, target, jiffies);  in _bond_option_arp_ip_target_add()
951 static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)  in bond_option_arp_ip_target_add()  argument
953 	return _bond_option_arp_ip_target_add(bond, target);  in bond_option_arp_ip_target_add()
956 static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target)  in bond_option_arp_ip_target_rem()  argument
958 	__be32 *targets = bond->params.arp_targets;  in bond_option_arp_ip_target_rem()
965 		netdev_err(bond->dev, "invalid ARP target %pI4 specified for removal\n",  in bond_option_arp_ip_target_rem()
972 		netdev_err(bond->dev, "unable to remove nonexistent ARP target %pI4\n",  in bond_option_arp_ip_target_rem()
977 	if (ind == 0 && !targets[1] && bond->params.arp_interval)  in bond_option_arp_ip_target_rem()
978 		netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");  in bond_option_arp_ip_target_rem()
980 	netdev_info(bond->dev, "Removing ARP target %pI4\n", &target);  in bond_option_arp_ip_target_rem()
982 	bond_for_each_slave(bond, slave, iter) {  in bond_option_arp_ip_target_rem()
995 void bond_option_arp_ip_targets_clear(struct bonding *bond)  in bond_option_arp_ip_targets_clear()  argument
1000 		_bond_options_arp_ip_target_set(bond, i, 0, 0);  in bond_option_arp_ip_targets_clear()
1003 static int bond_option_arp_ip_targets_set(struct bonding *bond,  in bond_option_arp_ip_targets_set()  argument
1011 			netdev_err(bond->dev, "invalid ARP target %pI4 specified\n",  in bond_option_arp_ip_targets_set()
1016 			ret = bond_option_arp_ip_target_add(bond, target);  in bond_option_arp_ip_targets_set()
1018 			ret = bond_option_arp_ip_target_rem(bond, target);  in bond_option_arp_ip_targets_set()
1020 			netdev_err(bond->dev, "no command found in arp_ip_targets file - use +<addr> or -<addr>\n");  in bond_option_arp_ip_targets_set()
1023 		ret = bond_option_arp_ip_target_add(bond, target);  in bond_option_arp_ip_targets_set()
1029 static int bond_option_arp_validate_set(struct bonding *bond,  in bond_option_arp_validate_set()  argument
1032 	netdev_info(bond->dev, "Setting arp_validate to %s (%llu)\n",  in bond_option_arp_validate_set()
1035 	if (bond->dev->flags & IFF_UP) {  in bond_option_arp_validate_set()
1037 			bond->recv_probe = NULL;  in bond_option_arp_validate_set()
1038 		else if (bond->params.arp_interval)  in bond_option_arp_validate_set()
1039 			bond->recv_probe = bond_arp_rcv;  in bond_option_arp_validate_set()
1041 	bond->params.arp_validate = newval->value;  in bond_option_arp_validate_set()
1046 static int bond_option_arp_all_targets_set(struct bonding *bond,  in bond_option_arp_all_targets_set()  argument
1049 	netdev_info(bond->dev, "Setting arp_all_targets to %s (%llu)\n",  in bond_option_arp_all_targets_set()
1051 	bond->params.arp_all_targets = newval->value;  in bond_option_arp_all_targets_set()
1056 static int bond_option_primary_set(struct bonding *bond,  in bond_option_primary_set()  argument
1070 		netdev_info(bond->dev, "Setting primary slave to None\n");  in bond_option_primary_set()
1071 		RCU_INIT_POINTER(bond->primary_slave, NULL);  in bond_option_primary_set()
1072 		memset(bond->params.primary, 0, sizeof(bond->params.primary));  in bond_option_primary_set()
1073 		bond_select_active_slave(bond);  in bond_option_primary_set()
1077 	bond_for_each_slave(bond, slave, iter) {  in bond_option_primary_set()
1079 			netdev_info(bond->dev, "Setting %s as primary slave\n",  in bond_option_primary_set()
1081 			rcu_assign_pointer(bond->primary_slave, slave);  in bond_option_primary_set()
1082 			strcpy(bond->params.primary, slave->dev->name);  in bond_option_primary_set()
1083 			bond_select_active_slave(bond);  in bond_option_primary_set()
1088 	if (rtnl_dereference(bond->primary_slave)) {  in bond_option_primary_set()
1089 		netdev_info(bond->dev, "Setting primary slave to None\n");  in bond_option_primary_set()
1090 		RCU_INIT_POINTER(bond->primary_slave, NULL);  in bond_option_primary_set()
1091 		bond_select_active_slave(bond);  in bond_option_primary_set()
1093 	strncpy(bond->params.primary, primary, IFNAMSIZ);  in bond_option_primary_set()
1094 	bond->params.primary[IFNAMSIZ - 1] = 0;  in bond_option_primary_set()
1096 	netdev_info(bond->dev, "Recording %s as primary, but it has not been enslaved to %s yet\n",  in bond_option_primary_set()
1097 		    primary, bond->dev->name);  in bond_option_primary_set()
1105 static int bond_option_primary_reselect_set(struct bonding *bond,  in bond_option_primary_reselect_set()  argument
1108 	netdev_info(bond->dev, "Setting primary_reselect to %s (%llu)\n",  in bond_option_primary_reselect_set()
1110 	bond->params.primary_reselect = newval->value;  in bond_option_primary_reselect_set()
1113 	bond_select_active_slave(bond);  in bond_option_primary_reselect_set()
1119 static int bond_option_fail_over_mac_set(struct bonding *bond,  in bond_option_fail_over_mac_set()  argument
1122 	netdev_info(bond->dev, "Setting fail_over_mac to %s (%llu)\n",  in bond_option_fail_over_mac_set()
1124 	bond->params.fail_over_mac = newval->value;  in bond_option_fail_over_mac_set()
1129 static int bond_option_xmit_hash_policy_set(struct bonding *bond,  in bond_option_xmit_hash_policy_set()  argument
1132 	netdev_info(bond->dev, "Setting xmit hash policy to %s (%llu)\n",  in bond_option_xmit_hash_policy_set()
1134 	bond->params.xmit_policy = newval->value;  in bond_option_xmit_hash_policy_set()
1139 static int bond_option_resend_igmp_set(struct bonding *bond,  in bond_option_resend_igmp_set()  argument
1142 	netdev_info(bond->dev, "Setting resend_igmp to %llu\n",  in bond_option_resend_igmp_set()
1144 	bond->params.resend_igmp = newval->value;  in bond_option_resend_igmp_set()
1149 static int bond_option_num_peer_notif_set(struct bonding *bond,  in bond_option_num_peer_notif_set()  argument
1152 	bond->params.num_peer_notif = newval->value;  in bond_option_num_peer_notif_set()
1157 static int bond_option_all_slaves_active_set(struct bonding *bond,  in bond_option_all_slaves_active_set()  argument
1163 	if (newval->value == bond->params.all_slaves_active)  in bond_option_all_slaves_active_set()
1165 	bond->params.all_slaves_active = newval->value;  in bond_option_all_slaves_active_set()
1166 	bond_for_each_slave(bond, slave, iter) {  in bond_option_all_slaves_active_set()
1178 static int bond_option_min_links_set(struct bonding *bond,  in bond_option_min_links_set()  argument
1181 	netdev_info(bond->dev, "Setting min links value to %llu\n",  in bond_option_min_links_set()
1183 	bond->params.min_links = newval->value;  in bond_option_min_links_set()
1184 	bond_set_carrier(bond);  in bond_option_min_links_set()
1189 static int bond_option_lp_interval_set(struct bonding *bond,  in bond_option_lp_interval_set()  argument
1192 	bond->params.lp_interval = newval->value;  in bond_option_lp_interval_set()
1197 static int bond_option_pps_set(struct bonding *bond,  in bond_option_pps_set()  argument
1200 	bond->params.packets_per_slave = newval->value;  in bond_option_pps_set()
1202 		bond->params.reciprocal_packets_per_slave =  in bond_option_pps_set()
1208 		bond->params.reciprocal_packets_per_slave =  in bond_option_pps_set()
1215 static int bond_option_lacp_rate_set(struct bonding *bond,  in bond_option_lacp_rate_set()  argument
1218 	netdev_info(bond->dev, "Setting LACP rate to %s (%llu)\n",  in bond_option_lacp_rate_set()
1220 	bond->params.lacp_fast = newval->value;  in bond_option_lacp_rate_set()
1221 	bond_3ad_update_lacp_rate(bond);  in bond_option_lacp_rate_set()
1226 static int bond_option_ad_select_set(struct bonding *bond,  in bond_option_ad_select_set()  argument
1229 	netdev_info(bond->dev, "Setting ad_select to %s (%llu)\n",  in bond_option_ad_select_set()
1231 	bond->params.ad_select = newval->value;  in bond_option_ad_select_set()
1236 static int bond_option_queue_id_set(struct bonding *bond,  in bond_option_queue_id_set()  argument
1260 	    qid > bond->dev->real_num_tx_queues)  in bond_option_queue_id_set()
1264 	sdev = __dev_get_by_name(dev_net(bond->dev), newval->string);  in bond_option_queue_id_set()
1270 	bond_for_each_slave(bond, slave, iter) {  in bond_option_queue_id_set()
1291 	netdev_info(bond->dev, "invalid input for queue_id set\n");  in bond_option_queue_id_set()
1297 static int bond_option_slaves_set(struct bonding *bond,  in bond_option_slaves_set()  argument
1311 	dev = __dev_get_by_name(dev_net(bond->dev), ifname);  in bond_option_slaves_set()
1313 		netdev_info(bond->dev, "interface %s does not exist!\n",  in bond_option_slaves_set()
1321 		netdev_info(bond->dev, "Adding slave %s\n", dev->name);  in bond_option_slaves_set()
1322 		ret = bond_enslave(bond->dev, dev);  in bond_option_slaves_set()
1326 		netdev_info(bond->dev, "Removing slave %s\n", dev->name);  in bond_option_slaves_set()
1327 		ret = bond_release(bond->dev, dev);  in bond_option_slaves_set()
1338 	netdev_err(bond->dev, "no command found in slaves file - use +ifname or -ifname\n");  in bond_option_slaves_set()
1343 static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,  in bond_option_tlb_dynamic_lb_set()  argument
1346 	netdev_info(bond->dev, "Setting dynamic-lb to %s (%llu)\n",  in bond_option_tlb_dynamic_lb_set()
1348 	bond->params.tlb_dynamic_lb = newval->value;  in bond_option_tlb_dynamic_lb_set()