Lines Matching +full:slave +full:- +full:if
1 // SPDX-License-Identifier: GPL-1.0+
21 * the first slave bonded to the channel. All slaves will then use
28 * will attach eth0 to bond0 as a slave. eth0 hw mac address will either
30 * b: if a hw mac address already is there, eth0's hw mac address
89 #if IS_ENABLED(CONFIG_TLS_DEVICE)
97 /*---------------------------- Module parameters ----------------------------*/
147 MODULE_PARM_DESC(mode, "Mode of operation; 0 for balance-rr, "
148 "1 for active-backup, 2 for balance-xor, "
149 "3 for broadcast, 4 for 802.3ad, 5 for balance-tlb, "
150 "6 for balance-alb");
154 MODULE_PARM_DESC(primary_reselect, "Reselect primary slave "
157 "1 for only if speed of primary is "
159 "2 for only on active slave "
172 MODULE_PARM_DESC(xmit_hash_policy, "balance-alb, balance-tlb, balance-xor, 802.3ad hashing method; "
187 MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to "
198 MODULE_PARM_DESC(packets_per_slave, "Packets to send per slave in balance-rr "
199 "mode; 0 for a random slave, 1 packet per "
200 "slave (default), >1 packets per slave.");
206 /*----------------------------- Global variables ----------------------------*/
259 /*-------------------------- Forward declarations ---------------------------*/
270 /*---------------------------- General routines -----------------------------*/
275 [BOND_MODE_ROUNDROBIN] = "load balancing (round-robin)", in bond_mode_name()
276 [BOND_MODE_ACTIVEBACKUP] = "fault-tolerance (active-backup)", in bond_mode_name()
278 [BOND_MODE_BROADCAST] = "fault-tolerance (broadcast)", in bond_mode_name()
284 if (mode < BOND_MODE_ROUNDROBIN || mode > BOND_MODE_ALB) in bond_mode_name()
291 * bond_dev_queue_xmit - Prepare skb for xmit.
295 * @slave_dev: slave that is supposed to xmit this skbuff
300 skb->dev = slave_dev; in bond_dev_queue_xmit()
302 BUILD_BUG_ON(sizeof(skb->queue_mapping) != in bond_dev_queue_xmit()
303 sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping)); in bond_dev_queue_xmit()
304 skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping); in bond_dev_queue_xmit()
306 if (unlikely(netpoll_tx_running(bond->dev))) in bond_dev_queue_xmit()
317 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34) in bond_sk_check()
336 if (bond->params.xmit_policy != BOND_XMIT_POLICY_VLAN_SRCMAC) in bond_xdp_check()
344 /*---------------------------------- VLAN -----------------------------------*/
347 * We don't protect the slave list iteration with a lock because:
359 * worse, and if it works for regular VLAN usage it will work here too.
363 * bond_vlan_rx_add_vid - Propagates adding an id to slaves
372 struct slave *slave, *rollback_slave; in bond_vlan_rx_add_vid() local
376 bond_for_each_slave(bond, slave, iter) { in bond_vlan_rx_add_vid()
377 res = vlan_vid_add(slave->dev, proto, vid); in bond_vlan_rx_add_vid()
378 if (res) in bond_vlan_rx_add_vid()
385 /* unwind to the slave that failed */ in bond_vlan_rx_add_vid()
387 if (rollback_slave == slave) in bond_vlan_rx_add_vid()
390 vlan_vid_del(rollback_slave->dev, proto, vid); in bond_vlan_rx_add_vid()
397 * bond_vlan_rx_kill_vid - Propagates deleting an id to slaves
407 struct slave *slave; in bond_vlan_rx_kill_vid() local
409 bond_for_each_slave(bond, slave, iter) in bond_vlan_rx_kill_vid()
410 vlan_vid_del(slave->dev, proto, vid); in bond_vlan_rx_kill_vid()
412 if (bond_is_lb(bond)) in bond_vlan_rx_kill_vid()
418 /*---------------------------------- XFRM -----------------------------------*/
422 * bond_ipsec_dev - Get active device for IPsec offload
427 * Return: the device for ipsec offload, or NULL if not exist.
431 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_dev()
433 struct slave *slave; in bond_ipsec_dev() local
435 if (!bond_dev) in bond_ipsec_dev()
439 if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) in bond_ipsec_dev()
442 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_dev()
443 if (!slave) in bond_ipsec_dev()
446 if (!xs->xso.real_dev) in bond_ipsec_dev()
449 if (xs->xso.real_dev != slave->dev) in bond_ipsec_dev()
450 pr_warn_ratelimited("%s: (slave %s): not same with IPsec offload real dev %s\n", in bond_ipsec_dev()
451 bond_dev->name, slave->dev->name, xs->xso.real_dev->name); in bond_ipsec_dev()
453 return slave->dev; in bond_ipsec_dev()
457 * bond_ipsec_add_sa - program device with a security association
464 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_add_sa()
469 struct slave *slave; in bond_ipsec_add_sa() local
472 if (!bond_dev) in bond_ipsec_add_sa()
473 return -EINVAL; in bond_ipsec_add_sa()
477 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_add_sa()
478 real_dev = slave ? slave->dev : NULL; in bond_ipsec_add_sa()
481 if (!real_dev) { in bond_ipsec_add_sa()
482 err = -ENODEV; in bond_ipsec_add_sa()
486 if (!real_dev->xfrmdev_ops || in bond_ipsec_add_sa()
487 !real_dev->xfrmdev_ops->xdo_dev_state_add || in bond_ipsec_add_sa()
489 NL_SET_ERR_MSG_MOD(extack, "Slave does not support ipsec offload"); in bond_ipsec_add_sa()
490 err = -EINVAL; in bond_ipsec_add_sa()
495 if (!ipsec) { in bond_ipsec_add_sa()
496 err = -ENOMEM; in bond_ipsec_add_sa()
500 xs->xso.real_dev = real_dev; in bond_ipsec_add_sa()
501 err = real_dev->xfrmdev_ops->xdo_dev_state_add(xs, extack); in bond_ipsec_add_sa()
502 if (!err) { in bond_ipsec_add_sa()
503 ipsec->xs = xs; in bond_ipsec_add_sa()
504 INIT_LIST_HEAD(&ipsec->list); in bond_ipsec_add_sa()
505 mutex_lock(&bond->ipsec_lock); in bond_ipsec_add_sa()
506 list_add(&ipsec->list, &bond->ipsec_list); in bond_ipsec_add_sa()
507 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_add_sa()
518 struct net_device *bond_dev = bond->dev; in bond_ipsec_add_sa_all()
521 struct slave *slave; in bond_ipsec_add_sa_all() local
523 slave = rtnl_dereference(bond->curr_active_slave); in bond_ipsec_add_sa_all()
524 real_dev = slave ? slave->dev : NULL; in bond_ipsec_add_sa_all()
525 if (!real_dev) in bond_ipsec_add_sa_all()
528 mutex_lock(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
529 if (!real_dev->xfrmdev_ops || in bond_ipsec_add_sa_all()
530 !real_dev->xfrmdev_ops->xdo_dev_state_add || in bond_ipsec_add_sa_all()
532 if (!list_empty(&bond->ipsec_list)) in bond_ipsec_add_sa_all()
534 "%s: no slave xdo_dev_state_add\n", in bond_ipsec_add_sa_all()
539 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_add_sa_all()
540 /* If new state is added before ipsec_lock acquired */ in bond_ipsec_add_sa_all()
541 if (ipsec->xs->xso.real_dev == real_dev) in bond_ipsec_add_sa_all()
544 ipsec->xs->xso.real_dev = real_dev; in bond_ipsec_add_sa_all()
545 if (real_dev->xfrmdev_ops->xdo_dev_state_add(ipsec->xs, NULL)) { in bond_ipsec_add_sa_all()
547 ipsec->xs->xso.real_dev = NULL; in bond_ipsec_add_sa_all()
551 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
555 * bond_ipsec_del_sa - clear out this specific SA
560 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_del_sa()
565 struct slave *slave; in bond_ipsec_del_sa() local
567 if (!bond_dev) in bond_ipsec_del_sa()
572 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_del_sa()
573 real_dev = slave ? slave->dev : NULL; in bond_ipsec_del_sa()
577 if (!slave) in bond_ipsec_del_sa()
580 if (!xs->xso.real_dev) in bond_ipsec_del_sa()
583 WARN_ON(xs->xso.real_dev != real_dev); in bond_ipsec_del_sa()
585 if (!real_dev->xfrmdev_ops || in bond_ipsec_del_sa()
586 !real_dev->xfrmdev_ops->xdo_dev_state_delete || in bond_ipsec_del_sa()
588 slave_warn(bond_dev, real_dev, "%s: no slave xdo_dev_state_delete\n", __func__); in bond_ipsec_del_sa()
592 real_dev->xfrmdev_ops->xdo_dev_state_delete(xs); in bond_ipsec_del_sa()
595 mutex_lock(&bond->ipsec_lock); in bond_ipsec_del_sa()
596 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_del_sa()
597 if (ipsec->xs == xs) { in bond_ipsec_del_sa()
598 list_del(&ipsec->list); in bond_ipsec_del_sa()
603 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_del_sa()
608 struct net_device *bond_dev = bond->dev; in bond_ipsec_del_sa_all()
611 struct slave *slave; in bond_ipsec_del_sa_all() local
613 slave = rtnl_dereference(bond->curr_active_slave); in bond_ipsec_del_sa_all()
614 real_dev = slave ? slave->dev : NULL; in bond_ipsec_del_sa_all()
615 if (!real_dev) in bond_ipsec_del_sa_all()
618 mutex_lock(&bond->ipsec_lock); in bond_ipsec_del_sa_all()
619 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_del_sa_all()
620 if (!ipsec->xs->xso.real_dev) in bond_ipsec_del_sa_all()
623 if (!real_dev->xfrmdev_ops || in bond_ipsec_del_sa_all()
624 !real_dev->xfrmdev_ops->xdo_dev_state_delete || in bond_ipsec_del_sa_all()
627 "%s: no slave xdo_dev_state_delete\n", in bond_ipsec_del_sa_all()
630 real_dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs); in bond_ipsec_del_sa_all()
631 if (real_dev->xfrmdev_ops->xdo_dev_state_free) in bond_ipsec_del_sa_all()
632 real_dev->xfrmdev_ops->xdo_dev_state_free(ipsec->xs); in bond_ipsec_del_sa_all()
635 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_del_sa_all()
640 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_free_sa()
644 struct slave *slave; in bond_ipsec_free_sa() local
646 if (!bond_dev) in bond_ipsec_free_sa()
651 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_free_sa()
652 real_dev = slave ? slave->dev : NULL; in bond_ipsec_free_sa()
656 if (!slave) in bond_ipsec_free_sa()
659 if (!xs->xso.real_dev) in bond_ipsec_free_sa()
662 WARN_ON(xs->xso.real_dev != real_dev); in bond_ipsec_free_sa()
664 if (real_dev && real_dev->xfrmdev_ops && in bond_ipsec_free_sa()
665 real_dev->xfrmdev_ops->xdo_dev_state_free) in bond_ipsec_free_sa()
666 real_dev->xfrmdev_ops->xdo_dev_state_free(xs); in bond_ipsec_free_sa()
672 * bond_ipsec_offload_ok - can this packet use the xfrm hw offload
683 if (!real_dev) in bond_ipsec_offload_ok()
686 if (!real_dev->xfrmdev_ops || in bond_ipsec_offload_ok()
687 !real_dev->xfrmdev_ops->xdo_dev_offload_ok || in bond_ipsec_offload_ok()
691 ok = real_dev->xfrmdev_ops->xdo_dev_offload_ok(skb, xs); in bond_ipsec_offload_ok()
698 * bond_advance_esn_state - ESN support for IPSec HW offload
707 if (!real_dev) in bond_advance_esn_state()
710 if (!real_dev->xfrmdev_ops || in bond_advance_esn_state()
711 !real_dev->xfrmdev_ops->xdo_dev_state_advance_esn) { in bond_advance_esn_state()
712 …pr_warn_ratelimited("%s: %s doesn't support xdo_dev_state_advance_esn\n", __func__, real_dev->name… in bond_advance_esn_state()
716 real_dev->xfrmdev_ops->xdo_dev_state_advance_esn(xs); in bond_advance_esn_state()
722 * bond_xfrm_update_stats - Update xfrm state
731 if (!real_dev) in bond_xfrm_update_stats()
734 if (!real_dev->xfrmdev_ops || in bond_xfrm_update_stats()
735 !real_dev->xfrmdev_ops->xdo_dev_state_update_stats) { in bond_xfrm_update_stats()
736 …pr_warn_ratelimited("%s: %s doesn't support xdo_dev_state_update_stats\n", __func__, real_dev->nam… in bond_xfrm_update_stats()
740 real_dev->xfrmdev_ops->xdo_dev_state_update_stats(xs); in bond_xfrm_update_stats()
755 /*------------------------------- Link status -------------------------------*/
758 * slaves. If any slaves are up, the master is up. In 802.3ad mode,
761 * Returns zero if carrier state does not change, nonzero if it does.
766 struct slave *slave; in bond_set_carrier() local
768 if (!bond_has_slaves(bond)) in bond_set_carrier()
771 if (BOND_MODE(bond) == BOND_MODE_8023AD) in bond_set_carrier()
774 bond_for_each_slave(bond, slave, iter) { in bond_set_carrier()
775 if (slave->link == BOND_LINK_UP) { in bond_set_carrier()
776 if (!netif_carrier_ok(bond->dev)) { in bond_set_carrier()
777 netif_carrier_on(bond->dev); in bond_set_carrier()
785 if (netif_carrier_ok(bond->dev)) { in bond_set_carrier()
786 netif_carrier_off(bond->dev); in bond_set_carrier()
792 /* Get link speed and duplex from the slave's base driver
793 * using ethtool. If for some reason the call fails or the
794 * values are invalid, set speed and duplex to -1,
795 * and return. Return 1 if speed or duplex settings are
798 static int bond_update_speed_duplex(struct slave *slave) in bond_update_speed_duplex() argument
800 struct net_device *slave_dev = slave->dev; in bond_update_speed_duplex()
804 slave->speed = SPEED_UNKNOWN; in bond_update_speed_duplex()
805 slave->duplex = DUPLEX_UNKNOWN; in bond_update_speed_duplex()
808 if (res < 0) in bond_update_speed_duplex()
810 if (ecmd.base.speed == 0 || ecmd.base.speed == ((__u32)-1)) in bond_update_speed_duplex()
820 slave->speed = ecmd.base.speed; in bond_update_speed_duplex()
821 slave->duplex = ecmd.base.duplex; in bond_update_speed_duplex()
842 /* if <dev> supports MII link status reporting, check its link status.
851 * If reporting is non-zero, instead of faking link up, return -1 if
853 * support them). If use_carrier is set, return whatever it says.
854 * It'd be nice if there was a good way to tell if a driver supports
860 const struct net_device_ops *slave_ops = slave_dev->netdev_ops; in bond_check_dev_link()
865 if (!reporting && !netif_running(slave_dev)) in bond_check_dev_link()
868 if (bond->params.use_carrier) in bond_check_dev_link()
872 if (slave_dev->ethtool_ops->get_link) in bond_check_dev_link()
873 return slave_dev->ethtool_ops->get_link(slave_dev) ? in bond_check_dev_link()
877 ioctl = slave_ops->ndo_eth_ioctl; in bond_check_dev_link()
878 if (ioctl) { in bond_check_dev_link()
892 strscpy_pad(ifr.ifr_name, slave_dev->name, IFNAMSIZ); in bond_check_dev_link()
894 if (ioctl(slave_dev, &ifr, SIOCGMIIPHY) == 0) { in bond_check_dev_link()
895 mii->reg_num = MII_BMSR; in bond_check_dev_link()
896 if (ioctl(slave_dev, &ifr, SIOCGMIIREG) == 0) in bond_check_dev_link()
897 return mii->val_out & BMSR_LSTATUS; in bond_check_dev_link()
901 /* If reporting, report that either there's no ndo_eth_ioctl, in bond_check_dev_link()
903 * cannot report link status). If not reporting, pretend in bond_check_dev_link()
906 return reporting ? -1 : BMSR_LSTATUS; in bond_check_dev_link()
909 /*----------------------------- Multicast list ------------------------------*/
917 if (bond_uses_primary(bond)) { in bond_set_promiscuity()
918 struct slave *curr_active = rtnl_dereference(bond->curr_active_slave); in bond_set_promiscuity()
920 if (curr_active) in bond_set_promiscuity()
921 err = dev_set_promiscuity(curr_active->dev, inc); in bond_set_promiscuity()
923 struct slave *slave; in bond_set_promiscuity() local
925 bond_for_each_slave(bond, slave, iter) { in bond_set_promiscuity()
926 err = dev_set_promiscuity(slave->dev, inc); in bond_set_promiscuity()
927 if (err) in bond_set_promiscuity()
940 if (bond_uses_primary(bond)) { in bond_set_allmulti()
941 struct slave *curr_active = rtnl_dereference(bond->curr_active_slave); in bond_set_allmulti()
943 if (curr_active) in bond_set_allmulti()
944 err = dev_set_allmulti(curr_active->dev, inc); in bond_set_allmulti()
946 struct slave *slave; in bond_set_allmulti() local
948 bond_for_each_slave(bond, slave, iter) { in bond_set_allmulti()
949 err = dev_set_allmulti(slave->dev, inc); in bond_set_allmulti()
950 if (err) in bond_set_allmulti()
959 * slave.
966 if (!rtnl_trylock()) { in bond_resend_igmp_join_requests_delayed()
967 queue_delayed_work(bond->wq, &bond->mcast_work, 1); in bond_resend_igmp_join_requests_delayed()
970 call_netdevice_notifiers(NETDEV_RESEND_IGMP, bond->dev); in bond_resend_igmp_join_requests_delayed()
972 if (bond->igmp_retrans > 1) { in bond_resend_igmp_join_requests_delayed()
973 bond->igmp_retrans--; in bond_resend_igmp_join_requests_delayed()
974 queue_delayed_work(bond->wq, &bond->mcast_work, HZ/5); in bond_resend_igmp_join_requests_delayed()
979 /* Flush bond's hardware addresses from slave */
988 if (BOND_MODE(bond) == BOND_MODE_8023AD) in bond_hw_addr_flush()
992 /*--------------------------- Active slave change ---------------------------*/
995 * old active slaves (if any). Modes that are not using primary keep all
999 static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active, in bond_hw_addr_swap()
1000 struct slave *old_active) in bond_hw_addr_swap()
1002 if (old_active) { in bond_hw_addr_swap()
1003 if (bond->dev->flags & IFF_PROMISC) in bond_hw_addr_swap()
1004 dev_set_promiscuity(old_active->dev, -1); in bond_hw_addr_swap()
1006 if (bond->dev->flags & IFF_ALLMULTI) in bond_hw_addr_swap()
1007 dev_set_allmulti(old_active->dev, -1); in bond_hw_addr_swap()
1009 if (bond->dev->flags & IFF_UP) in bond_hw_addr_swap()
1010 bond_hw_addr_flush(bond->dev, old_active->dev); in bond_hw_addr_swap()
1015 if (new_active) { in bond_hw_addr_swap()
1017 if (bond->dev->flags & IFF_PROMISC) in bond_hw_addr_swap()
1018 dev_set_promiscuity(new_active->dev, 1); in bond_hw_addr_swap()
1020 if (bond->dev->flags & IFF_ALLMULTI) in bond_hw_addr_swap()
1021 dev_set_allmulti(new_active->dev, 1); in bond_hw_addr_swap()
1023 if (bond->dev->flags & IFF_UP) { in bond_hw_addr_swap()
1024 netif_addr_lock_bh(bond->dev); in bond_hw_addr_swap()
1025 dev_uc_sync(new_active->dev, bond->dev); in bond_hw_addr_swap()
1026 dev_mc_sync(new_active->dev, bond->dev); in bond_hw_addr_swap()
1027 netif_addr_unlock_bh(bond->dev); in bond_hw_addr_swap()
1035 * bond_set_dev_addr - clone slave's address to bond
1037 * @slave_dev: slave net device
1046 slave_dbg(bond_dev, slave_dev, "bond_dev=%p slave_dev=%p slave_dev->addr_len=%d\n", in bond_set_dev_addr()
1047 bond_dev, slave_dev, slave_dev->addr_len); in bond_set_dev_addr()
1048 err = dev_pre_changeaddr_notify(bond_dev, slave_dev->dev_addr, NULL); in bond_set_dev_addr()
1049 if (err) in bond_set_dev_addr()
1052 __dev_addr_set(bond_dev, slave_dev->dev_addr, slave_dev->addr_len); in bond_set_dev_addr()
1053 bond_dev->addr_assign_type = NET_ADDR_STOLEN; in bond_set_dev_addr()
1058 static struct slave *bond_get_old_active(struct bonding *bond, in bond_get_old_active()
1059 struct slave *new_active) in bond_get_old_active()
1061 struct slave *slave; in bond_get_old_active() local
1064 bond_for_each_slave(bond, slave, iter) { in bond_get_old_active()
1065 if (slave == new_active) in bond_get_old_active()
1068 if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr)) in bond_get_old_active()
1069 return slave; in bond_get_old_active()
1082 struct slave *new_active, in bond_do_fail_over_mac()
1083 struct slave *old_active) in bond_do_fail_over_mac()
1089 switch (bond->params.fail_over_mac) { in bond_do_fail_over_mac()
1091 if (new_active) { in bond_do_fail_over_mac()
1092 rv = bond_set_dev_addr(bond->dev, new_active->dev); in bond_do_fail_over_mac()
1093 if (rv) in bond_do_fail_over_mac()
1094 slave_err(bond->dev, new_active->dev, "Error %d setting bond MAC from slave\n", in bond_do_fail_over_mac()
1095 -rv); in bond_do_fail_over_mac()
1099 /* if new_active && old_active, swap them in bond_do_fail_over_mac()
1100 * if just old_active, do nothing (going to no active slave) in bond_do_fail_over_mac()
1101 * if just new_active, set new_active to bond's MAC in bond_do_fail_over_mac()
1103 if (!new_active) in bond_do_fail_over_mac()
1106 if (!old_active) in bond_do_fail_over_mac()
1109 if (old_active) { in bond_do_fail_over_mac()
1110 bond_hw_addr_copy(tmp_mac, new_active->dev->dev_addr, in bond_do_fail_over_mac()
1111 new_active->dev->addr_len); in bond_do_fail_over_mac()
1113 old_active->dev->dev_addr, in bond_do_fail_over_mac()
1114 old_active->dev->addr_len); in bond_do_fail_over_mac()
1115 ss.ss_family = new_active->dev->type; in bond_do_fail_over_mac()
1117 bond_hw_addr_copy(ss.__data, bond->dev->dev_addr, in bond_do_fail_over_mac()
1118 bond->dev->addr_len); in bond_do_fail_over_mac()
1119 ss.ss_family = bond->dev->type; in bond_do_fail_over_mac()
1122 rv = dev_set_mac_address(new_active->dev, in bond_do_fail_over_mac()
1124 if (rv) { in bond_do_fail_over_mac()
1125 slave_err(bond->dev, new_active->dev, "Error %d setting MAC of new active slave\n", in bond_do_fail_over_mac()
1126 -rv); in bond_do_fail_over_mac()
1130 if (!old_active) in bond_do_fail_over_mac()
1134 new_active->dev->addr_len); in bond_do_fail_over_mac()
1135 ss.ss_family = old_active->dev->type; in bond_do_fail_over_mac()
1137 rv = dev_set_mac_address(old_active->dev, in bond_do_fail_over_mac()
1139 if (rv) in bond_do_fail_over_mac()
1140 slave_err(bond->dev, old_active->dev, "Error %d setting MAC of old active slave\n", in bond_do_fail_over_mac()
1141 -rv); in bond_do_fail_over_mac()
1145 netdev_err(bond->dev, "bond_do_fail_over_mac impossible: bad policy %d\n", in bond_do_fail_over_mac()
1146 bond->params.fail_over_mac); in bond_do_fail_over_mac()
1153 * bond_choose_primary_or_current - select the primary or high priority slave
1156 * - Check if there is a primary link. If the primary link was set and is up,
1159 * - If primary link is not set or down, find the highest priority link.
1160 * If the highest priority link is not current slave, set it as primary
1163 static struct slave *bond_choose_primary_or_current(struct bonding *bond) in bond_choose_primary_or_current()
1165 struct slave *prim = rtnl_dereference(bond->primary_slave); in bond_choose_primary_or_current()
1166 struct slave *curr = rtnl_dereference(bond->curr_active_slave); in bond_choose_primary_or_current()
1167 struct slave *slave, *hprio = NULL; in bond_choose_primary_or_current() local
1170 if (!prim || prim->link != BOND_LINK_UP) { in bond_choose_primary_or_current()
1171 bond_for_each_slave(bond, slave, iter) { in bond_choose_primary_or_current()
1172 if (slave->link == BOND_LINK_UP) { in bond_choose_primary_or_current()
1173 hprio = hprio ?: slave; in bond_choose_primary_or_current()
1174 if (slave->prio > hprio->prio) in bond_choose_primary_or_current()
1175 hprio = slave; in bond_choose_primary_or_current()
1179 if (hprio && hprio != curr) { in bond_choose_primary_or_current()
1184 if (!curr || curr->link != BOND_LINK_UP) in bond_choose_primary_or_current()
1189 if (bond->force_primary) { in bond_choose_primary_or_current()
1190 bond->force_primary = false; in bond_choose_primary_or_current()
1195 if (!curr || curr->link != BOND_LINK_UP) in bond_choose_primary_or_current()
1199 switch (bond->params.primary_reselect) { in bond_choose_primary_or_current()
1203 if (prim->speed < curr->speed) in bond_choose_primary_or_current()
1205 if (prim->speed == curr->speed && prim->duplex <= curr->duplex) in bond_choose_primary_or_current()
1211 netdev_err(bond->dev, "impossible primary_reselect %d\n", in bond_choose_primary_or_current()
1212 bond->params.primary_reselect); in bond_choose_primary_or_current()
1218 * bond_find_best_slave - select the best available slave to be the active one
1221 static struct slave *bond_find_best_slave(struct bonding *bond) in bond_find_best_slave()
1223 struct slave *slave, *bestslave = NULL; in bond_find_best_slave() local
1225 int mintime = bond->params.updelay; in bond_find_best_slave()
1227 slave = bond_choose_primary_or_current(bond); in bond_find_best_slave()
1228 if (slave) in bond_find_best_slave()
1229 return slave; in bond_find_best_slave()
1231 bond_for_each_slave(bond, slave, iter) { in bond_find_best_slave()
1232 if (slave->link == BOND_LINK_UP) in bond_find_best_slave()
1233 return slave; in bond_find_best_slave()
1234 if (slave->link == BOND_LINK_BACK && bond_slave_is_up(slave) && in bond_find_best_slave()
1235 slave->delay < mintime) { in bond_find_best_slave()
1236 mintime = slave->delay; in bond_find_best_slave()
1237 bestslave = slave; in bond_find_best_slave()
1247 struct slave *slave = rcu_dereference_rtnl(bond->curr_active_slave); in bond_should_notify_peers() local
1249 if (!slave || !bond->send_peer_notif || in bond_should_notify_peers()
1250 bond->send_peer_notif % in bond_should_notify_peers()
1251 max(1, bond->params.peer_notif_delay) != 0 || in bond_should_notify_peers()
1252 !netif_carrier_ok(bond->dev) || in bond_should_notify_peers()
1253 test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state)) in bond_should_notify_peers()
1256 netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n", in bond_should_notify_peers()
1257 slave ? slave->dev->name : "NULL"); in bond_should_notify_peers()
1263 * bond_change_active_slave - change the active slave into the specified one
1265 * @new_active: the new slave to make the active one
1267 * Set the new slave to the bond's settings and unset them on the old
1269 * Setting include flags, mc-list, promiscuity, allmulti, etc.
1271 * If @new's link state is %BOND_LINK_BACK we'll set it to %BOND_LINK_UP,
1272 * because it is apparently the best available slave we have, even though its
1277 void bond_change_active_slave(struct bonding *bond, struct slave *new_active) in bond_change_active_slave()
1279 struct slave *old_active; in bond_change_active_slave()
1283 old_active = rtnl_dereference(bond->curr_active_slave); in bond_change_active_slave()
1285 if (old_active == new_active) in bond_change_active_slave()
1292 if (new_active) { in bond_change_active_slave()
1293 new_active->last_link_up = jiffies; in bond_change_active_slave()
1295 if (new_active->link == BOND_LINK_BACK) { in bond_change_active_slave()
1296 if (bond_uses_primary(bond)) { in bond_change_active_slave()
1297 slave_info(bond->dev, new_active->dev, "making interface the new active one %d ms earlier\n", in bond_change_active_slave()
1298 (bond->params.updelay - new_active->delay) * bond->params.miimon); in bond_change_active_slave()
1301 new_active->delay = 0; in bond_change_active_slave()
1305 if (BOND_MODE(bond) == BOND_MODE_8023AD) in bond_change_active_slave()
1308 if (bond_is_lb(bond)) in bond_change_active_slave()
1311 if (bond_uses_primary(bond)) in bond_change_active_slave()
1312 slave_info(bond->dev, new_active->dev, "making interface the new active one\n"); in bond_change_active_slave()
1316 if (bond_uses_primary(bond)) in bond_change_active_slave()
1319 if (bond_is_lb(bond)) { in bond_change_active_slave()
1321 if (old_active) in bond_change_active_slave()
1324 if (new_active) in bond_change_active_slave()
1328 rcu_assign_pointer(bond->curr_active_slave, new_active); in bond_change_active_slave()
1331 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) { in bond_change_active_slave()
1332 if (old_active) in bond_change_active_slave()
1336 if (new_active) { in bond_change_active_slave()
1342 if (bond->params.fail_over_mac) in bond_change_active_slave()
1346 if (netif_running(bond->dev)) { in bond_change_active_slave()
1347 bond->send_peer_notif = in bond_change_active_slave()
1348 bond->params.num_peer_notif * in bond_change_active_slave()
1349 max(1, bond->params.peer_notif_delay); in bond_change_active_slave()
1354 call_netdevice_notifiers(NETDEV_BONDING_FAILOVER, bond->dev); in bond_change_active_slave()
1355 if (should_notify_peers) { in bond_change_active_slave()
1356 bond->send_peer_notif--; in bond_change_active_slave()
1358 bond->dev); in bond_change_active_slave()
1367 /* resend IGMP joins since active slave has changed or in bond_change_active_slave()
1369 * resend only if bond is brought up with the affected in bond_change_active_slave()
1372 if (netif_running(bond->dev) && (bond->params.resend_igmp > 0) && in bond_change_active_slave()
1375 bond->igmp_retrans = bond->params.resend_igmp; in bond_change_active_slave()
1376 queue_delayed_work(bond->wq, &bond->mcast_work, 1); in bond_change_active_slave()
1381 * bond_select_active_slave - select a new active slave, if needed
1385 * - The old curr_active_slave has been released or lost its link.
1386 * - The primary_slave has got its link back.
1387 * - A slave has got its link back and there's no old curr_active_slave.
1393 struct slave *best_slave; in bond_select_active_slave()
1399 if (best_slave != rtnl_dereference(bond->curr_active_slave)) { in bond_select_active_slave()
1402 if (!rv) in bond_select_active_slave()
1405 if (netif_carrier_ok(bond->dev)) in bond_select_active_slave()
1406 netdev_info(bond->dev, "active interface up!\n"); in bond_select_active_slave()
1408 netdev_info(bond->dev, "now running without any active interface!\n"); in bond_select_active_slave()
1413 static inline int slave_enable_netpoll(struct slave *slave) in slave_enable_netpoll() argument
1419 err = -ENOMEM; in slave_enable_netpoll()
1420 if (!np) in slave_enable_netpoll()
1423 err = __netpoll_setup(np, slave->dev); in slave_enable_netpoll()
1424 if (err) { in slave_enable_netpoll()
1428 slave->np = np; in slave_enable_netpoll()
1432 static inline void slave_disable_netpoll(struct slave *slave) in slave_disable_netpoll() argument
1434 struct netpoll *np = slave->np; in slave_disable_netpoll()
1436 if (!np) in slave_disable_netpoll()
1439 slave->np = NULL; in slave_disable_netpoll()
1447 struct slave *slave = NULL; in bond_poll_controller() local
1451 if (BOND_MODE(bond) == BOND_MODE_8023AD) in bond_poll_controller()
1452 if (bond_3ad_get_active_agg_info(bond, &ad_info)) in bond_poll_controller()
1455 bond_for_each_slave_rcu(bond, slave, iter) { in bond_poll_controller()
1456 if (!bond_slave_is_up(slave)) in bond_poll_controller()
1459 if (BOND_MODE(bond) == BOND_MODE_8023AD) { in bond_poll_controller()
1461 SLAVE_AD_INFO(slave)->port.aggregator; in bond_poll_controller()
1463 if (agg && in bond_poll_controller()
1464 agg->aggregator_identifier != ad_info.aggregator_id) in bond_poll_controller()
1468 netpoll_poll_dev(slave->dev); in bond_poll_controller()
1476 struct slave *slave; in bond_netpoll_cleanup() local
1478 bond_for_each_slave(bond, slave, iter) in bond_netpoll_cleanup()
1479 if (bond_slave_is_up(slave)) in bond_netpoll_cleanup()
1480 slave_disable_netpoll(slave); in bond_netpoll_cleanup()
1487 struct slave *slave; in bond_netpoll_setup() local
1490 bond_for_each_slave(bond, slave, iter) { in bond_netpoll_setup()
1491 err = slave_enable_netpoll(slave); in bond_netpoll_setup()
1492 if (err) { in bond_netpoll_setup()
1500 static inline int slave_enable_netpoll(struct slave *slave) in slave_enable_netpoll() argument
1504 static inline void slave_disable_netpoll(struct slave *slave) in slave_disable_netpoll() argument
1512 /*---------------------------------- IOCTL ----------------------------------*/
1520 struct slave *slave; in bond_fix_features() local
1525 bond_for_each_slave(bond, slave, iter) { in bond_fix_features()
1527 slave->dev->features, in bond_fix_features()
1561 struct net_device *bond_dev = bond->dev; in bond_compute_features()
1563 struct slave *slave; in bond_compute_features() local
1568 if (!bond_has_slaves(bond)) in bond_compute_features()
1574 bond_for_each_slave(bond, slave, iter) { in bond_compute_features()
1576 slave->dev->vlan_features, BOND_VLAN_FEATURES); in bond_compute_features()
1579 slave->dev->hw_enc_features, in bond_compute_features()
1584 slave->dev->hw_enc_features, in bond_compute_features()
1589 slave->dev->gso_partial_features, in bond_compute_features()
1593 slave->dev->mpls_features, in bond_compute_features()
1596 dst_release_flag &= slave->dev->priv_flags; in bond_compute_features()
1597 if (slave->dev->hard_header_len > max_hard_header_len) in bond_compute_features()
1598 max_hard_header_len = slave->dev->hard_header_len; in bond_compute_features()
1600 tso_max_size = min(tso_max_size, slave->dev->tso_max_size); in bond_compute_features()
1601 tso_max_segs = min(tso_max_segs, slave->dev->tso_max_segs); in bond_compute_features()
1603 bond_dev->hard_header_len = max_hard_header_len; in bond_compute_features()
1606 bond_dev->gso_partial_features = gso_partial_features; in bond_compute_features()
1607 bond_dev->vlan_features = vlan_features; in bond_compute_features()
1608 bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | in bond_compute_features()
1612 bond_dev->hw_enc_features |= xfrm_features; in bond_compute_features()
1614 bond_dev->mpls_features = mpls_features; in bond_compute_features()
1618 bond_dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; in bond_compute_features()
1619 if ((bond_dev->priv_flags & IFF_XMIT_DST_RELEASE_PERM) && in bond_compute_features()
1621 bond_dev->priv_flags |= IFF_XMIT_DST_RELEASE; in bond_compute_features()
1629 bool was_up = !!(bond_dev->flags & IFF_UP); in bond_setup_by_slave()
1633 bond_dev->header_ops = slave_dev->header_ops; in bond_setup_by_slave()
1635 bond_dev->type = slave_dev->type; in bond_setup_by_slave()
1636 bond_dev->hard_header_len = slave_dev->hard_header_len; in bond_setup_by_slave()
1637 bond_dev->needed_headroom = slave_dev->needed_headroom; in bond_setup_by_slave()
1638 bond_dev->addr_len = slave_dev->addr_len; in bond_setup_by_slave()
1640 memcpy(bond_dev->broadcast, slave_dev->broadcast, in bond_setup_by_slave()
1641 slave_dev->addr_len); in bond_setup_by_slave()
1643 if (slave_dev->flags & IFF_POINTOPOINT) { in bond_setup_by_slave()
1644 bond_dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST); in bond_setup_by_slave()
1645 bond_dev->flags |= (IFF_POINTOPOINT | IFF_NOARP); in bond_setup_by_slave()
1647 if (was_up) in bond_setup_by_slave()
1651 /* On bonding slaves other than the currently active slave, suppress
1652 * duplicates except for alb non-mcast/bcast.
1655 struct slave *slave, in bond_should_deliver_exact_match() argument
1658 if (bond_is_slave_inactive(slave)) { in bond_should_deliver_exact_match()
1659 if (BOND_MODE(bond) == BOND_MODE_ALB && in bond_should_deliver_exact_match()
1660 skb->pkt_type != PACKET_BROADCAST && in bond_should_deliver_exact_match()
1661 skb->pkt_type != PACKET_MULTICAST) in bond_should_deliver_exact_match()
1671 struct slave *slave; in bond_handle_frame() local
1674 struct slave *); in bond_handle_frame()
1678 if (unlikely(!skb)) in bond_handle_frame()
1683 slave = bond_slave_get_rcu(skb->dev); in bond_handle_frame()
1684 bond = slave->bond; in bond_handle_frame()
1686 recv_probe = READ_ONCE(bond->recv_probe); in bond_handle_frame()
1687 if (recv_probe) { in bond_handle_frame()
1688 ret = recv_probe(skb, bond, slave); in bond_handle_frame()
1689 if (ret == RX_HANDLER_CONSUMED) { in bond_handle_frame()
1697 * be suppressed we want to make an exception for link-local packets. in bond_handle_frame()
1699 * inactive slave links without being forced to bind to them in bond_handle_frame()
1703 * (including link-local ones) can have their originating interface in bond_handle_frame()
1706 if (bond_should_deliver_exact_match(skb, slave, bond)) { in bond_handle_frame()
1707 if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) in bond_handle_frame()
1712 skb->dev = bond->dev; in bond_handle_frame()
1714 if (BOND_MODE(bond) == BOND_MODE_ALB && in bond_handle_frame()
1715 netif_is_bridge_port(bond->dev) && in bond_handle_frame()
1716 skb->pkt_type == PACKET_HOST) { in bond_handle_frame()
1718 if (unlikely(skb_cow_head(skb, in bond_handle_frame()
1719 skb->data - skb_mac_header(skb)))) { in bond_handle_frame()
1723 bond_hw_addr_copy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, in bond_handle_frame()
1724 bond->dev->addr_len); in bond_handle_frame()
1750 if (type != NETDEV_LAG_TX_TYPE_HASH) in bond_lag_hash_type()
1753 switch (bond->params.xmit_policy) { in bond_lag_hash_type()
1771 static int bond_master_upper_dev_link(struct bonding *bond, struct slave *slave, in bond_master_upper_dev_link() argument
1782 err = netdev_master_upper_dev_link(slave->dev, bond->dev, slave, in bond_master_upper_dev_link()
1784 if (err) in bond_master_upper_dev_link()
1787 slave->dev->flags |= IFF_SLAVE; in bond_master_upper_dev_link()
1791 static void bond_upper_dev_unlink(struct bonding *bond, struct slave *slave) in bond_upper_dev_unlink() argument
1793 netdev_upper_dev_unlink(slave->dev, bond->dev); in bond_upper_dev_unlink()
1794 slave->dev->flags &= ~IFF_SLAVE; in bond_upper_dev_unlink()
1799 struct slave *slave = to_slave(kobj); in slave_kobj_release() local
1800 struct bonding *bond = bond_get_bond_by_slave(slave); in slave_kobj_release()
1802 cancel_delayed_work_sync(&slave->notify_work); in slave_kobj_release()
1803 if (BOND_MODE(bond) == BOND_MODE_8023AD) in slave_kobj_release()
1804 kfree(SLAVE_AD_INFO(slave)); in slave_kobj_release()
1806 kfree(slave); in slave_kobj_release()
1816 static int bond_kobj_init(struct slave *slave) in bond_kobj_init() argument
1820 err = kobject_init_and_add(&slave->kobj, &slave_ktype, in bond_kobj_init()
1821 &(slave->dev->dev.kobj), "bonding_slave"); in bond_kobj_init()
1822 if (err) in bond_kobj_init()
1823 kobject_put(&slave->kobj); in bond_kobj_init()
1828 static struct slave *bond_alloc_slave(struct bonding *bond, in bond_alloc_slave()
1831 struct slave *slave = NULL; in bond_alloc_slave() local
1833 slave = kzalloc(sizeof(*slave), GFP_KERNEL); in bond_alloc_slave()
1834 if (!slave) in bond_alloc_slave()
1837 slave->bond = bond; in bond_alloc_slave()
1838 slave->dev = slave_dev; in bond_alloc_slave()
1839 INIT_DELAYED_WORK(&slave->notify_work, bond_netdev_notify_work); in bond_alloc_slave()
1841 if (bond_kobj_init(slave)) in bond_alloc_slave()
1844 if (BOND_MODE(bond) == BOND_MODE_8023AD) { in bond_alloc_slave()
1845 SLAVE_AD_INFO(slave) = kzalloc(sizeof(struct ad_slave_info), in bond_alloc_slave()
1847 if (!SLAVE_AD_INFO(slave)) { in bond_alloc_slave()
1848 kobject_put(&slave->kobj); in bond_alloc_slave()
1853 return slave; in bond_alloc_slave()
1858 info->bond_mode = BOND_MODE(bond); in bond_fill_ifbond()
1859 info->miimon = bond->params.miimon; in bond_fill_ifbond()
1860 info->num_slaves = bond->slave_cnt; in bond_fill_ifbond()
1863 static void bond_fill_ifslave(struct slave *slave, struct ifslave *info) in bond_fill_ifslave() argument
1865 strcpy(info->slave_name, slave->dev->name); in bond_fill_ifslave()
1866 info->link = slave->link; in bond_fill_ifslave()
1867 info->state = bond_slave_state(slave); in bond_fill_ifslave()
1868 info->link_failure_count = slave->link_failure_count; in bond_fill_ifslave()
1873 struct slave *slave = container_of(_work, struct slave, in bond_netdev_notify_work() local
1876 if (rtnl_trylock()) { in bond_netdev_notify_work()
1879 bond_fill_ifslave(slave, &binfo.slave); in bond_netdev_notify_work()
1880 bond_fill_ifbond(slave->bond, &binfo.master); in bond_netdev_notify_work()
1881 netdev_bonding_info_change(slave->dev, &binfo); in bond_netdev_notify_work()
1884 queue_delayed_work(slave->bond->wq, &slave->notify_work, 1); in bond_netdev_notify_work()
1888 void bond_queue_slave_event(struct slave *slave) in bond_queue_slave_event() argument
1890 queue_delayed_work(slave->bond->wq, &slave->notify_work, 0); in bond_queue_slave_event()
1893 void bond_lower_state_changed(struct slave *slave) in bond_lower_state_changed() argument
1897 info.link_up = slave->link == BOND_LINK_UP || in bond_lower_state_changed()
1898 slave->link == BOND_LINK_FAIL; in bond_lower_state_changed()
1899 info.tx_enabled = bond_is_active_slave(slave); in bond_lower_state_changed()
1900 netdev_lower_state_changed(slave->dev, &info); in bond_lower_state_changed()
1904 if (extack) \
1911 if (extack) \
1920 * if they were set
1924 unsigned int flags = bond_dev->flags & (IFF_SLAVE | IFF_UP); in bond_ether_setup()
1927 bond_dev->flags |= IFF_MASTER | flags; in bond_ether_setup()
1928 bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING; in bond_ether_setup()
1936 struct slave *slave; in bond_xdp_set_features() local
1940 if (!bond_xdp_check(bond) || !bond_has_slaves(bond)) { in bond_xdp_set_features()
1945 bond_for_each_slave(bond, slave, iter) in bond_xdp_set_features()
1946 val &= slave->dev->xdp_features; in bond_xdp_set_features()
1953 /* enslave device <slave> to bond device <master> */
1958 const struct net_device_ops *slave_ops = slave_dev->netdev_ops; in bond_enslave()
1959 struct slave *new_slave = NULL, *prev_slave; in bond_enslave()
1964 if (slave_dev->flags & IFF_MASTER && in bond_enslave()
1968 return -EPERM; in bond_enslave()
1971 if (!bond->params.use_carrier && in bond_enslave()
1972 slave_dev->ethtool_ops->get_link == NULL && in bond_enslave()
1973 slave_ops->ndo_eth_ioctl == NULL) { in bond_enslave()
1977 /* already in-use? */ in bond_enslave()
1978 if (netdev_is_rx_handler_busy(slave_dev)) { in bond_enslave()
1981 return -EBUSY; in bond_enslave()
1984 if (bond_dev == slave_dev) { in bond_enslave()
1986 return -EPERM; in bond_enslave()
1991 if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) { in bond_enslave()
1993 if (vlan_uses_dev(bond_dev)) { in bond_enslave()
1996 return -EPERM; in bond_enslave()
1998 …slave_warn(bond_dev, slave_dev, "enslaved VLAN challenged slave. Adding VLANs will be blocked as l… in bond_enslave()
2004 if (slave_dev->features & NETIF_F_HW_ESP) in bond_enslave()
2005 slave_dbg(bond_dev, slave_dev, "is esp-hw-offload capable\n"); in bond_enslave()
2008 * be identified with moderate accuracy by the state of the slave: in bond_enslave()
2012 if (slave_dev->flags & IFF_UP) { in bond_enslave()
2015 return -EPERM; in bond_enslave()
2018 /* set bonding device ether type by slave - bonding netdevices are in bond_enslave()
2019 * created with ether_setup, so when the slave type is not ARPHRD_ETHER in bond_enslave()
2022 * bond ether type mutual exclusion - don't allow slaves of dissimilar in bond_enslave()
2025 if (!bond_has_slaves(bond)) { in bond_enslave()
2026 if (bond_dev->type != slave_dev->type) { in bond_enslave()
2028 bond_dev->type, slave_dev->type); in bond_enslave()
2033 if (res) { in bond_enslave()
2035 return -EBUSY; in bond_enslave()
2042 if (slave_dev->type != ARPHRD_ETHER) in bond_enslave()
2050 } else if (bond_dev->type != slave_dev->type) { in bond_enslave()
2053 return -EINVAL; in bond_enslave()
2056 if (slave_dev->type == ARPHRD_INFINIBAND && in bond_enslave()
2059 "Only active-backup mode is supported for infiniband slaves"); in bond_enslave()
2060 res = -EOPNOTSUPP; in bond_enslave()
2064 if (!slave_ops->ndo_set_mac_address || in bond_enslave()
2065 slave_dev->type == ARPHRD_INFINIBAND) { in bond_enslave()
2066 …slave_warn(bond_dev, slave_dev, "The slave device specified does not support setting the MAC addre… in bond_enslave()
2067 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP && in bond_enslave()
2068 bond->params.fail_over_mac != BOND_FOM_ACTIVE) { in bond_enslave()
2069 if (!bond_has_slaves(bond)) { in bond_enslave()
2070 bond->params.fail_over_mac = BOND_FOM_ACTIVE; in bond_enslave()
2071 slave_warn(bond_dev, slave_dev, "Setting fail_over_mac to active for active-backup mode\n"); in bond_enslave()
2074 … "Slave device does not support setting the MAC address, but fail_over_mac is not set to active"); in bond_enslave()
2075 res = -EOPNOTSUPP; in bond_enslave()
2083 /* If this is the first slave, then we need to set the master's hardware in bond_enslave()
2084 * address to be the same as the slave's. in bond_enslave()
2086 if (!bond_has_slaves(bond) && in bond_enslave()
2087 bond->dev->addr_assign_type == NET_ADDR_RANDOM) { in bond_enslave()
2088 res = bond_set_dev_addr(bond->dev, slave_dev); in bond_enslave()
2089 if (res) in bond_enslave()
2094 if (!new_slave) { in bond_enslave()
2095 res = -ENOMEM; in bond_enslave()
2100 * is set via sysfs or module option if desired. in bond_enslave()
2102 new_slave->queue_id = 0; in bond_enslave()
2104 /* Save slave's original mtu and then set it to match the bond */ in bond_enslave()
2105 new_slave->original_mtu = slave_dev->mtu; in bond_enslave()
2106 res = dev_set_mtu(slave_dev, bond->dev->mtu); in bond_enslave()
2107 if (res) { in bond_enslave()
2112 /* Save slave's original ("permanent") mac address for modes in bond_enslave()
2116 bond_hw_addr_copy(new_slave->perm_hwaddr, slave_dev->dev_addr, in bond_enslave()
2117 slave_dev->addr_len); in bond_enslave()
2119 if (!bond->params.fail_over_mac || in bond_enslave()
2121 /* Set slave to master's mac address. The application already in bond_enslave()
2122 * set the master's mac address to that of the first slave in bond_enslave()
2124 memcpy(ss.__data, bond_dev->dev_addr, bond_dev->addr_len); in bond_enslave()
2125 ss.ss_family = slave_dev->type; in bond_enslave()
2128 if (res) { in bond_enslave()
2135 slave_dev->priv_flags |= IFF_NO_ADDRCONF; in bond_enslave()
2137 /* open the slave since the application closed it */ in bond_enslave()
2139 if (res) { in bond_enslave()
2140 slave_err(bond_dev, slave_dev, "Opening slave failed\n"); in bond_enslave()
2144 slave_dev->priv_flags |= IFF_BONDING; in bond_enslave()
2145 /* initialize slave stats */ in bond_enslave()
2146 dev_get_stats(new_slave->dev, &new_slave->slave_stats); in bond_enslave()
2148 if (bond_is_lb(bond)) { in bond_enslave()
2153 if (res) in bond_enslave()
2158 if (res) { in bond_enslave()
2165 new_slave->delay = 0; in bond_enslave()
2166 new_slave->link_failure_count = 0; in bond_enslave()
2168 if (bond_update_speed_duplex(new_slave) && in bond_enslave()
2170 new_slave->link = BOND_LINK_DOWN; in bond_enslave()
2172 new_slave->last_rx = jiffies - in bond_enslave()
2173 (msecs_to_jiffies(bond->params.arp_interval) + 1); in bond_enslave()
2175 new_slave->target_last_arp_rx[i] = new_slave->last_rx; in bond_enslave()
2177 new_slave->last_tx = new_slave->last_rx; in bond_enslave()
2179 if (bond->params.miimon && !bond->params.use_carrier) { in bond_enslave()
2182 if ((link_reporting == -1) && !bond->params.arp_interval) { in bond_enslave()
2185 * arp_interval is not set. Note: if in bond_enslave()
2191 …slave_warn(bond_dev, slave_dev, "MII and ETHTOOL support not available for slave, and arp_interval… in bond_enslave()
2192 } else if (link_reporting == -1) { in bond_enslave()
2194 …slave_warn(bond_dev, slave_dev, "can't get link status from slave; the network driver associated w… in bond_enslave()
2199 new_slave->link = BOND_LINK_NOCHANGE; in bond_enslave()
2200 if (bond->params.miimon) { in bond_enslave()
2201 if (bond_check_dev_link(bond, slave_dev, 0) == BMSR_LSTATUS) { in bond_enslave()
2202 if (bond->params.updelay) { in bond_enslave()
2206 new_slave->delay = bond->params.updelay; in bond_enslave()
2216 } else if (bond->params.arp_interval) { in bond_enslave()
2226 if (new_slave->link != BOND_LINK_DOWN) in bond_enslave()
2227 new_slave->last_link_up = jiffies; in bond_enslave()
2228 slave_dbg(bond_dev, slave_dev, "Initial state of slave is BOND_LINK_%s\n", in bond_enslave()
2229 new_slave->link == BOND_LINK_DOWN ? "DOWN" : in bond_enslave()
2230 (new_slave->link == BOND_LINK_UP ? "UP" : "BACK")); in bond_enslave()
2232 if (bond_uses_primary(bond) && bond->params.primary[0]) { in bond_enslave()
2233 /* if there is a primary slave, remember it */ in bond_enslave()
2234 if (strcmp(bond->params.primary, new_slave->dev->name) == 0) { in bond_enslave()
2235 rcu_assign_pointer(bond->primary_slave, new_slave); in bond_enslave()
2236 bond->force_primary = true; in bond_enslave()
2251 /* if this is the first slave */ in bond_enslave()
2252 if (!prev_slave) { in bond_enslave()
2253 SLAVE_AD_INFO(new_slave)->id = 1; in bond_enslave()
2259 SLAVE_AD_INFO(new_slave)->id = in bond_enslave()
2260 SLAVE_AD_INFO(prev_slave)->id + 1; in bond_enslave()
2271 slave_dbg(bond_dev, slave_dev, "This slave is always active in trunk mode\n"); in bond_enslave()
2280 if (!rcu_access_pointer(bond->curr_active_slave) && in bond_enslave()
2281 new_slave->link == BOND_LINK_UP) in bond_enslave()
2282 rcu_assign_pointer(bond->curr_active_slave, new_slave); in bond_enslave()
2288 if (bond->dev->npinfo) { in bond_enslave()
2289 if (slave_enable_netpoll(new_slave)) { in bond_enslave()
2290 …slave_info(bond_dev, slave_dev, "master_dev is using netpoll, but new slave device does not suppor… in bond_enslave()
2291 res = -EBUSY; in bond_enslave()
2297 if (!(bond_dev->features & NETIF_F_LRO)) in bond_enslave()
2302 if (res) { in bond_enslave()
2308 if (res) { in bond_enslave()
2316 if (res) { in bond_enslave()
2321 /* If the mode uses primary, then the following is handled by in bond_enslave()
2324 if (!bond_uses_primary(bond)) { in bond_enslave()
2325 /* set promiscuity level to new slave */ in bond_enslave()
2326 if (bond_dev->flags & IFF_PROMISC) { in bond_enslave()
2328 if (res) in bond_enslave()
2332 /* set allmulti level to new slave */ in bond_enslave()
2333 if (bond_dev->flags & IFF_ALLMULTI) { in bond_enslave()
2335 if (res) { in bond_enslave()
2336 if (bond_dev->flags & IFF_PROMISC) in bond_enslave()
2337 dev_set_promiscuity(slave_dev, -1); in bond_enslave()
2342 if (bond_dev->flags & IFF_UP) { in bond_enslave()
2348 if (BOND_MODE(bond) == BOND_MODE_8023AD) in bond_enslave()
2353 bond->slave_cnt++; in bond_enslave()
2358 * remove the maddrs if the slave is selected as active slave. in bond_enslave()
2362 if (bond_uses_primary(bond)) { in bond_enslave()
2368 if (bond_mode_can_use_xmit_hash(bond)) in bond_enslave()
2371 if (!slave_dev->netdev_ops->ndo_bpf || in bond_enslave()
2372 !slave_dev->netdev_ops->ndo_xdp_xmit) { in bond_enslave()
2373 if (bond->xdp_prog) { in bond_enslave()
2375 "Slave does not support XDP"); in bond_enslave()
2376 res = -EOPNOTSUPP; in bond_enslave()
2379 } else if (bond->xdp_prog) { in bond_enslave()
2383 .prog = bond->xdp_prog, in bond_enslave()
2387 if (dev_xdp_prog_count(slave_dev) > 0) { in bond_enslave()
2389 "Slave has XDP program loaded, please unload before enslaving"); in bond_enslave()
2390 res = -EOPNOTSUPP; in bond_enslave()
2395 if (res < 0) { in bond_enslave()
2400 if (bond->xdp_prog) in bond_enslave()
2401 bpf_prog_inc(bond->xdp_prog); in bond_enslave()
2408 new_slave->link != BOND_LINK_DOWN ? "an up" : "a down"); in bond_enslave()
2426 if (rcu_access_pointer(bond->primary_slave) == new_slave) in bond_enslave()
2427 RCU_INIT_POINTER(bond->primary_slave, NULL); in bond_enslave()
2428 if (rcu_access_pointer(bond->curr_active_slave) == new_slave) { in bond_enslave()
2439 if (!netif_is_bond_master(slave_dev)) in bond_enslave()
2440 slave_dev->priv_flags &= ~IFF_BONDING; in bond_enslave()
2444 slave_dev->priv_flags &= ~IFF_NO_ADDRCONF; in bond_enslave()
2445 if (!bond->params.fail_over_mac || in bond_enslave()
2447 /* XXX TODO - fom follow mode needs to change master's in bond_enslave()
2448 * MAC if this slave's MAC is in use by the bond, or at in bond_enslave()
2451 bond_hw_addr_copy(ss.__data, new_slave->perm_hwaddr, in bond_enslave()
2452 new_slave->dev->addr_len); in bond_enslave()
2453 ss.ss_family = slave_dev->type; in bond_enslave()
2458 dev_set_mtu(slave_dev, new_slave->original_mtu); in bond_enslave()
2461 kobject_put(&new_slave->kobj); in bond_enslave()
2464 /* Enslave of first slave has failed and we need to fix master's mac */ in bond_enslave()
2465 if (!bond_has_slaves(bond)) { in bond_enslave()
2466 if (ether_addr_equal_64bits(bond_dev->dev_addr, in bond_enslave()
2467 slave_dev->dev_addr)) in bond_enslave()
2469 if (bond_dev->type != ARPHRD_ETHER) { in bond_enslave()
2478 /* Try to release the slave device <slave> from the bond device <master>
2480 * is RTNL-locked. If "all" is true it means that the function is being called
2483 * The rules for slave state should be:
2494 struct slave *slave, *oldcurrent; in __bond_release_one() local
2496 int old_flags = bond_dev->flags; in __bond_release_one()
2497 netdev_features_t old_features = bond_dev->features; in __bond_release_one()
2499 /* slave is not a slave or master is not master of this slave */ in __bond_release_one()
2500 if (!(slave_dev->flags & IFF_SLAVE) || in __bond_release_one()
2502 slave_dbg(bond_dev, slave_dev, "cannot release slave\n"); in __bond_release_one()
2503 return -EINVAL; in __bond_release_one()
2508 slave = bond_get_slave_by_dev(bond, slave_dev); in __bond_release_one()
2509 if (!slave) { in __bond_release_one()
2510 /* not a slave of this bond */ in __bond_release_one()
2513 return -EINVAL; in __bond_release_one()
2516 bond_set_slave_inactive_flags(slave, BOND_SLAVE_NOTIFY_NOW); in __bond_release_one()
2518 bond_sysfs_slave_del(slave); in __bond_release_one()
2520 /* recompute stats just before removing the slave */ in __bond_release_one()
2521 bond_get_stats(bond->dev, &bond->bond_stats); in __bond_release_one()
2523 if (bond->xdp_prog) { in __bond_release_one()
2530 if (dev_xdp_propagate(slave_dev, &xdp)) in __bond_release_one()
2535 * for this slave anymore. in __bond_release_one()
2539 if (BOND_MODE(bond) == BOND_MODE_8023AD) in __bond_release_one()
2540 bond_3ad_unbind_slave(slave); in __bond_release_one()
2542 bond_upper_dev_unlink(bond, slave); in __bond_release_one()
2544 if (bond_mode_can_use_xmit_hash(bond)) in __bond_release_one()
2545 bond_update_slave_arr(bond, slave); in __bond_release_one()
2548 bond_is_active_slave(slave) ? "active" : "backup"); in __bond_release_one()
2550 oldcurrent = rcu_access_pointer(bond->curr_active_slave); in __bond_release_one()
2552 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in __bond_release_one()
2554 if (!all && (!bond->params.fail_over_mac || in __bond_release_one()
2556 if (ether_addr_equal_64bits(bond_dev->dev_addr, slave->perm_hwaddr) && in __bond_release_one()
2558 …ond_dev, slave_dev, "the permanent HWaddr of slave - %pM - is still in use by bond - set the HWadd… in __bond_release_one()
2559 slave->perm_hwaddr); in __bond_release_one()
2562 if (rtnl_dereference(bond->primary_slave) == slave) in __bond_release_one()
2563 RCU_INIT_POINTER(bond->primary_slave, NULL); in __bond_release_one()
2565 if (oldcurrent == slave) in __bond_release_one()
2568 /* Must be called after bond_change_active_slave () as the slave in __bond_release_one()
2569 * might change from an active slave to a backup slave. Then it is in __bond_release_one()
2570 * necessary to clear the maddrs on the backup slave. in __bond_release_one()
2572 bond_slave_ns_maddrs_del(bond, slave); in __bond_release_one()
2574 if (bond_is_lb(bond)) { in __bond_release_one()
2575 /* Must be called only after the slave has been in __bond_release_one()
2577 * has been cleared (if our_slave == old_current), in __bond_release_one()
2578 * but before a new active slave is selected. in __bond_release_one()
2580 bond_alb_deinit_slave(bond, slave); in __bond_release_one()
2583 if (all) { in __bond_release_one()
2584 RCU_INIT_POINTER(bond->curr_active_slave, NULL); in __bond_release_one()
2585 } else if (oldcurrent == slave) { in __bond_release_one()
2587 * is no concern that another slave add/remove event in __bond_release_one()
2594 if (!bond_has_slaves(bond)) in __bond_release_one()
2599 bond->slave_cnt--; in __bond_release_one()
2601 if (!bond_has_slaves(bond)) { in __bond_release_one()
2602 call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev); in __bond_release_one()
2603 call_netdevice_notifiers(NETDEV_RELEASE, bond->dev); in __bond_release_one()
2607 if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) && in __bond_release_one()
2609 …slave_info(bond_dev, slave_dev, "last VLAN challenged slave left bond - VLAN blocking is removed\n… in __bond_release_one()
2613 /* If the mode uses primary, then this case was handled above by in __bond_release_one()
2616 if (!bond_uses_primary(bond)) { in __bond_release_one()
2617 /* unset promiscuity level from slave in __bond_release_one()
2621 * when this slave was attached, so we cache at the start of the in __bond_release_one()
2624 if (old_flags & IFF_PROMISC) in __bond_release_one()
2625 dev_set_promiscuity(slave_dev, -1); in __bond_release_one()
2627 /* unset allmulti level from slave */ in __bond_release_one()
2628 if (old_flags & IFF_ALLMULTI) in __bond_release_one()
2629 dev_set_allmulti(slave_dev, -1); in __bond_release_one()
2631 if (old_flags & IFF_UP) in __bond_release_one()
2635 slave_disable_netpoll(slave); in __bond_release_one()
2637 /* close slave before restoring its mac address */ in __bond_release_one()
2640 slave_dev->priv_flags &= ~IFF_NO_ADDRCONF; in __bond_release_one()
2642 if (bond->params.fail_over_mac != BOND_FOM_ACTIVE || in __bond_release_one()
2645 bond_hw_addr_copy(ss.__data, slave->perm_hwaddr, in __bond_release_one()
2646 slave->dev->addr_len); in __bond_release_one()
2647 ss.ss_family = slave_dev->type; in __bond_release_one()
2651 if (unregister) in __bond_release_one()
2652 __dev_set_mtu(slave_dev, slave->original_mtu); in __bond_release_one()
2654 dev_set_mtu(slave_dev, slave->original_mtu); in __bond_release_one()
2656 if (!netif_is_bond_master(slave_dev)) in __bond_release_one()
2657 slave_dev->priv_flags &= ~IFF_BONDING; in __bond_release_one()
2660 kobject_put(&slave->kobj); in __bond_release_one()
2671 /* First release a slave and then destroy the bond if no more slaves are left.
2681 if (ret == 0 && !bond_has_slaves(bond) && in bond_release_and_destroy()
2682 bond_dev->reg_state != NETREG_UNREGISTERING) { in bond_release_and_destroy()
2683 bond_dev->priv_flags |= IFF_DISABLE_NETPOLL; in bond_release_and_destroy()
2702 int i = 0, res = -ENODEV; in bond_slave_info_query()
2703 struct slave *slave; in bond_slave_info_query() local
2705 bond_for_each_slave(bond, slave, iter) { in bond_slave_info_query()
2706 if (i++ == (int)info->slave_id) { in bond_slave_info_query()
2708 bond_fill_ifslave(slave, info); in bond_slave_info_query()
2716 /*-------------------------------- Monitoring -------------------------------*/
2724 struct slave *slave; in bond_miimon_inspect() local
2726 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) { in bond_miimon_inspect()
2727 ignore_updelay = !rcu_dereference(bond->curr_active_slave); in bond_miimon_inspect()
2731 usable_slaves = rcu_dereference(bond->usable_slaves); in bond_miimon_inspect()
2733 if (usable_slaves && usable_slaves->count == 0) in bond_miimon_inspect()
2737 bond_for_each_slave_rcu(bond, slave, iter) { in bond_miimon_inspect()
2738 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_miimon_inspect()
2740 link_state = bond_check_dev_link(bond, slave->dev, 0); in bond_miimon_inspect()
2742 switch (slave->link) { in bond_miimon_inspect()
2744 if (link_state) in bond_miimon_inspect()
2747 bond_propose_link_state(slave, BOND_LINK_FAIL); in bond_miimon_inspect()
2749 slave->delay = bond->params.downdelay; in bond_miimon_inspect()
2750 if (slave->delay && net_ratelimit()) { in bond_miimon_inspect()
2751 slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n", in bond_miimon_inspect()
2754 (bond_is_active_slave(slave) ? in bond_miimon_inspect()
2756 bond->params.downdelay * bond->params.miimon); in bond_miimon_inspect()
2760 if (link_state) { in bond_miimon_inspect()
2762 bond_propose_link_state(slave, BOND_LINK_UP); in bond_miimon_inspect()
2763 slave->last_link_up = jiffies; in bond_miimon_inspect()
2764 if (net_ratelimit()) in bond_miimon_inspect()
2765 slave_info(bond->dev, slave->dev, "link status up again after %d ms\n", in bond_miimon_inspect()
2766 (bond->params.downdelay - slave->delay) * in bond_miimon_inspect()
2767 bond->params.miimon); in bond_miimon_inspect()
2772 if (slave->delay <= 0) { in bond_miimon_inspect()
2773 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_miimon_inspect()
2778 slave->delay--; in bond_miimon_inspect()
2782 if (!link_state) in bond_miimon_inspect()
2785 bond_propose_link_state(slave, BOND_LINK_BACK); in bond_miimon_inspect()
2787 slave->delay = bond->params.updelay; in bond_miimon_inspect()
2789 if (slave->delay && net_ratelimit()) { in bond_miimon_inspect()
2790 slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n", in bond_miimon_inspect()
2792 bond->params.updelay * in bond_miimon_inspect()
2793 bond->params.miimon); in bond_miimon_inspect()
2797 if (!link_state) { in bond_miimon_inspect()
2798 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_miimon_inspect()
2799 if (net_ratelimit()) in bond_miimon_inspect()
2800 slave_info(bond->dev, slave->dev, "link status down again after %d ms\n", in bond_miimon_inspect()
2801 (bond->params.updelay - slave->delay) * in bond_miimon_inspect()
2802 bond->params.miimon); in bond_miimon_inspect()
2807 if (ignore_updelay) in bond_miimon_inspect()
2808 slave->delay = 0; in bond_miimon_inspect()
2810 if (slave->delay <= 0) { in bond_miimon_inspect()
2811 bond_propose_link_state(slave, BOND_LINK_UP); in bond_miimon_inspect()
2817 slave->delay--; in bond_miimon_inspect()
2826 struct slave *slave, in bond_miimon_link_change() argument
2831 bond_3ad_handle_link_change(slave, link); in bond_miimon_link_change()
2835 bond_alb_handle_link_change(bond, slave, link); in bond_miimon_link_change()
2845 struct slave *slave, *primary, *active; in bond_miimon_commit() local
2851 bond_for_each_slave(bond, slave, iter) { in bond_miimon_commit()
2852 switch (slave->link_new_state) { in bond_miimon_commit()
2854 /* For 802.3ad mode, check current slave speed and in bond_miimon_commit()
2860 if (BOND_MODE(bond) == BOND_MODE_8023AD && in bond_miimon_commit()
2861 slave->link == BOND_LINK_UP) in bond_miimon_commit()
2862 bond_3ad_adapter_speed_duplex_changed(slave); in bond_miimon_commit()
2866 if (bond_update_speed_duplex(slave) && in bond_miimon_commit()
2868 slave->link = BOND_LINK_DOWN; in bond_miimon_commit()
2869 if (net_ratelimit()) in bond_miimon_commit()
2870 slave_warn(bond->dev, slave->dev, in bond_miimon_commit()
2874 bond_set_slave_link_state(slave, BOND_LINK_UP, in bond_miimon_commit()
2876 slave->last_link_up = jiffies; in bond_miimon_commit()
2878 primary = rtnl_dereference(bond->primary_slave); in bond_miimon_commit()
2879 if (BOND_MODE(bond) == BOND_MODE_8023AD) { in bond_miimon_commit()
2881 bond_set_backup_slave(slave); in bond_miimon_commit()
2882 } else if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) { in bond_miimon_commit()
2884 bond_set_active_slave(slave); in bond_miimon_commit()
2887 slave_info(bond->dev, slave->dev, "link status definitely up, %u Mbps %s duplex\n", in bond_miimon_commit()
2888 slave->speed == SPEED_UNKNOWN ? 0 : slave->speed, in bond_miimon_commit()
2889 slave->duplex ? "full" : "half"); in bond_miimon_commit()
2891 bond_miimon_link_change(bond, slave, BOND_LINK_UP); in bond_miimon_commit()
2893 active = rtnl_dereference(bond->curr_active_slave); in bond_miimon_commit()
2894 if (!active || slave == primary || slave->prio > active->prio) in bond_miimon_commit()
2900 if (slave->link_failure_count < UINT_MAX) in bond_miimon_commit()
2901 slave->link_failure_count++; in bond_miimon_commit()
2903 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_miimon_commit()
2906 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || in bond_miimon_commit()
2908 bond_set_slave_inactive_flags(slave, in bond_miimon_commit()
2911 slave_info(bond->dev, slave->dev, "link status definitely down, disabling slave\n"); in bond_miimon_commit()
2913 bond_miimon_link_change(bond, slave, BOND_LINK_DOWN); in bond_miimon_commit()
2915 if (slave == rcu_access_pointer(bond->curr_active_slave)) in bond_miimon_commit()
2921 slave_err(bond->dev, slave->dev, "invalid new link %d on slave\n", in bond_miimon_commit()
2922 slave->link_new_state); in bond_miimon_commit()
2923 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_miimon_commit()
2929 if (do_failover) { in bond_miimon_commit()
2941 * inspection, then (if inspection indicates something needs to be done)
2952 struct slave *slave; in bond_mii_monitor() local
2955 delay = msecs_to_jiffies(bond->params.miimon); in bond_mii_monitor()
2957 if (!bond_has_slaves(bond)) in bond_mii_monitor()
2963 if (bond->send_peer_notif) { in bond_mii_monitor()
2965 if (rtnl_trylock()) { in bond_mii_monitor()
2966 bond->send_peer_notif--; in bond_mii_monitor()
2973 if (commit) { in bond_mii_monitor()
2975 if (!rtnl_trylock()) { in bond_mii_monitor()
2981 bond_for_each_slave(bond, slave, iter) { in bond_mii_monitor()
2982 bond_commit_link_state(slave, BOND_SLAVE_NOTIFY_LATER); in bond_mii_monitor()
2990 if (bond->params.miimon) in bond_mii_monitor()
2991 queue_delayed_work(bond->wq, &bond->mii_work, delay); in bond_mii_monitor()
2993 if (should_notify_peers) { in bond_mii_monitor()
2994 if (!rtnl_trylock()) in bond_mii_monitor()
2996 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev); in bond_mii_monitor()
3004 __be32 ip = *(__be32 *)priv->data; in bond_upper_dev_walk()
3016 if (ip == bond_confirm_addr(bond->dev, 0, ip)) in bond_has_this_ip()
3020 if (netdev_walk_all_upper_dev_rcu(bond->dev, bond_upper_dev_walk, &priv)) in bond_has_this_ip()
3029 static bool bond_handle_vlan(struct slave *slave, struct bond_vlan_tag *tags, in bond_handle_vlan() argument
3032 struct net_device *bond_dev = slave->bond->dev; in bond_handle_vlan()
3033 struct net_device *slave_dev = slave->dev; in bond_handle_vlan()
3036 if (!tags || tags->vlan_proto == BOND_VLAN_PROTO_NONE) in bond_handle_vlan()
3042 while (tags->vlan_proto != BOND_VLAN_PROTO_NONE) { in bond_handle_vlan()
3043 if (!tags->vlan_id) { in bond_handle_vlan()
3049 ntohs(outer_tag->vlan_proto), tags->vlan_id); in bond_handle_vlan()
3050 skb = vlan_insert_tag_set_proto(skb, tags->vlan_proto, in bond_handle_vlan()
3051 tags->vlan_id); in bond_handle_vlan()
3052 if (!skb) { in bond_handle_vlan()
3060 if (outer_tag->vlan_id) { in bond_handle_vlan()
3062 ntohs(outer_tag->vlan_proto), outer_tag->vlan_id); in bond_handle_vlan()
3063 __vlan_hwaccel_put_tag(skb, outer_tag->vlan_proto, in bond_handle_vlan()
3064 outer_tag->vlan_id); in bond_handle_vlan()
3071 * switches in VLAN mode (especially if ports are configured as
3072 * "native" to a VLAN) might not pass non-tagged frames.
3074 static void bond_arp_send(struct slave *slave, int arp_op, __be32 dest_ip, in bond_arp_send() argument
3077 struct net_device *bond_dev = slave->bond->dev; in bond_arp_send()
3078 struct net_device *slave_dev = slave->dev; in bond_arp_send()
3081 slave_dbg(bond_dev, slave_dev, "arp %d on slave: dst %pI4 src %pI4\n", in bond_arp_send()
3085 NULL, slave_dev->dev_addr, NULL); in bond_arp_send()
3087 if (!skb) { in bond_arp_send()
3092 if (bond_handle_vlan(slave, tags, skb)) { in bond_arp_send()
3093 slave_update_last_tx(slave); in bond_arp_send()
3101 * The path is valid if the @end_dev is reachable through device
3114 if (start_dev == end_dev) { in bond_verify_device_path()
3116 if (!tags) in bond_verify_device_path()
3117 return ERR_PTR(-ENOMEM); in bond_verify_device_path()
3124 if (IS_ERR_OR_NULL(tags)) { in bond_verify_device_path()
3125 if (IS_ERR(tags)) in bond_verify_device_path()
3129 if (is_vlan_dev(upper)) { in bond_verify_device_path()
3140 static void bond_arp_send_all(struct bonding *bond, struct slave *slave) in bond_arp_send_all() argument
3144 __be32 *targets = bond->params.arp_targets, addr; in bond_arp_send_all()
3148 slave_dbg(bond->dev, slave->dev, "%s: target %pI4\n", in bond_arp_send_all()
3153 rt = ip_route_output(dev_net(bond->dev), targets[i], 0, 0, 0, in bond_arp_send_all()
3155 if (IS_ERR(rt)) { in bond_arp_send_all()
3156 /* there's no route to target - try to send arp in bond_arp_send_all()
3159 if (bond->params.arp_validate) in bond_arp_send_all()
3161 bond->dev->name, in bond_arp_send_all()
3163 bond_arp_send(slave, ARPOP_REQUEST, targets[i], in bond_arp_send_all()
3169 if (rt->dst.dev == bond->dev) in bond_arp_send_all()
3173 tags = bond_verify_device_path(bond->dev, rt->dst.dev, 0); in bond_arp_send_all()
3176 if (!IS_ERR_OR_NULL(tags)) in bond_arp_send_all()
3179 /* Not our device - skip */ in bond_arp_send_all()
3180 slave_dbg(bond->dev, slave->dev, "no path to arp_ip_target %pI4 via rt.dev %s\n", in bond_arp_send_all()
3181 &targets[i], rt->dst.dev ? rt->dst.dev->name : "NULL"); in bond_arp_send_all()
3187 addr = bond_confirm_addr(rt->dst.dev, targets[i], 0); in bond_arp_send_all()
3189 bond_arp_send(slave, ARPOP_REQUEST, targets[i], addr, tags); in bond_arp_send_all()
3194 static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32 sip, __be32 tip) in bond_validate_arp() argument
3198 if (!sip || !bond_has_this_ip(bond, tip)) { in bond_validate_arp()
3199 slave_dbg(bond->dev, slave->dev, "%s: sip %pI4 tip %pI4 not found\n", in bond_validate_arp()
3204 i = bond_get_targets_ip(bond->params.arp_targets, sip); in bond_validate_arp()
3205 if (i == -1) { in bond_validate_arp()
3206 slave_dbg(bond->dev, slave->dev, "%s: sip %pI4 not found in targets\n", in bond_validate_arp()
3210 slave->last_rx = jiffies; in bond_validate_arp()
3211 slave->target_last_arp_rx[i] = jiffies; in bond_validate_arp()
3215 struct slave *slave) in bond_arp_rcv() argument
3217 struct arphdr *arp = (struct arphdr *)skb->data; in bond_arp_rcv()
3218 struct slave *curr_active_slave, *curr_arp_slave; in bond_arp_rcv()
3223 alen = arp_hdr_len(bond->dev); in bond_arp_rcv()
3225 if (alen > skb_headlen(skb)) { in bond_arp_rcv()
3227 if (!arp) in bond_arp_rcv()
3229 if (skb_copy_bits(skb, 0, arp, alen) < 0) in bond_arp_rcv()
3233 if (arp->ar_hln != bond->dev->addr_len || in bond_arp_rcv()
3234 skb->pkt_type == PACKET_OTHERHOST || in bond_arp_rcv()
3235 skb->pkt_type == PACKET_LOOPBACK || in bond_arp_rcv()
3236 arp->ar_hrd != htons(ARPHRD_ETHER) || in bond_arp_rcv()
3237 arp->ar_pro != htons(ETH_P_IP) || in bond_arp_rcv()
3238 arp->ar_pln != 4) in bond_arp_rcv()
3242 arp_ptr += bond->dev->addr_len; in bond_arp_rcv()
3244 arp_ptr += 4 + bond->dev->addr_len; in bond_arp_rcv()
3247 slave_dbg(bond->dev, slave->dev, "%s: %s/%d av %d sv %d sip %pI4 tip %pI4\n", in bond_arp_rcv()
3248 __func__, slave->dev->name, bond_slave_state(slave), in bond_arp_rcv()
3249 bond->params.arp_validate, slave_do_arp_validate(bond, slave), in bond_arp_rcv()
3252 curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_arp_rcv()
3253 curr_arp_slave = rcu_dereference(bond->current_arp_slave); in bond_arp_rcv()
3255 /* We 'trust' the received ARP enough to validate it if: in bond_arp_rcv()
3257 * (a) the slave receiving the ARP is active (which includes the in bond_arp_rcv()
3258 * current ARP slave, if any), or in bond_arp_rcv()
3260 * (b) the receiving slave isn't active, but there is a currently in bond_arp_rcv()
3261 * active slave and it received valid arp reply(s) after it became in bond_arp_rcv()
3262 * the currently active slave, or in bond_arp_rcv()
3264 * (c) there is an ARP slave that sent an ARP during the prior ARP in bond_arp_rcv()
3265 * interval, and we receive an ARP reply on any slave. We accept in bond_arp_rcv()
3267 * reply to a slave other than the sender of the ARP request. in bond_arp_rcv()
3271 * slave through the L2 switch(es) to the receiving slave. Since in bond_arp_rcv()
3278 if (bond_is_active_slave(slave)) in bond_arp_rcv()
3279 bond_validate_arp(bond, slave, sip, tip); in bond_arp_rcv()
3280 else if (curr_active_slave && in bond_arp_rcv()
3282 curr_active_slave->last_link_up)) in bond_arp_rcv()
3283 bond_validate_arp(bond, slave, tip, sip); in bond_arp_rcv()
3284 else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) && in bond_arp_rcv()
3286 bond_validate_arp(bond, slave, sip, tip); in bond_arp_rcv()
3289 if (arp != (struct arphdr *)skb->data) in bond_arp_rcv()
3294 #if IS_ENABLED(CONFIG_IPV6)
3295 static void bond_ns_send(struct slave *slave, const struct in6_addr *daddr, in bond_ns_send() argument
3298 struct net_device *bond_dev = slave->bond->dev; in bond_ns_send()
3299 struct net_device *slave_dev = slave->dev; in bond_ns_send()
3303 slave_dbg(bond_dev, slave_dev, "NS on slave: dst %pI6c src %pI6c\n", in bond_ns_send()
3307 if (!skb) { in bond_ns_send()
3313 if (bond_handle_vlan(slave, tags, skb)) { in bond_ns_send()
3314 slave_update_last_tx(slave); in bond_ns_send()
3319 static void bond_ns_send_all(struct bonding *bond, struct slave *slave) in bond_ns_send_all() argument
3321 struct in6_addr *targets = bond->params.ns_targets; in bond_ns_send_all()
3329 slave_dbg(bond->dev, slave->dev, "%s: target %pI6c\n", in bond_ns_send_all()
3336 fl6.flowi6_oif = bond->dev->ifindex; in bond_ns_send_all()
3338 dst = ip6_route_output(dev_net(bond->dev), NULL, &fl6); in bond_ns_send_all()
3339 if (dst->error) { in bond_ns_send_all()
3341 /* there's no route to target - try to send arp in bond_ns_send_all()
3344 if (bond->params.arp_validate) in bond_ns_send_all()
3346 bond->dev->name, in bond_ns_send_all()
3348 bond_ns_send(slave, &targets[i], &in6addr_any, tags); in bond_ns_send_all()
3353 if (dst->dev == bond->dev) in bond_ns_send_all()
3357 tags = bond_verify_device_path(bond->dev, dst->dev, 0); in bond_ns_send_all()
3360 if (!IS_ERR_OR_NULL(tags)) in bond_ns_send_all()
3363 /* Not our device - skip */ in bond_ns_send_all()
3364 slave_dbg(bond->dev, slave->dev, "no path to ns_ip6_target %pI6c via dst->dev %s\n", in bond_ns_send_all()
3365 &targets[i], dst->dev ? dst->dev->name : "NULL"); in bond_ns_send_all()
3371 if (!ipv6_dev_get_saddr(dev_net(dst->dev), dst->dev, &targets[i], 0, &saddr)) in bond_ns_send_all()
3372 bond_ns_send(slave, &targets[i], &saddr, tags); in bond_ns_send_all()
3374 bond_ns_send(slave, &targets[i], &in6addr_any, tags); in bond_ns_send_all()
3384 struct in6_addr *addr = (struct in6_addr *)priv->data; in bond_confirm_addr6()
3396 if (bond_confirm_addr6(bond->dev, &priv)) in bond_has_this_ip6()
3400 if (netdev_walk_all_upper_dev_rcu(bond->dev, bond_confirm_addr6, &priv)) in bond_has_this_ip6()
3407 static void bond_validate_na(struct bonding *bond, struct slave *slave, in bond_validate_na() argument
3414 * 2. Dest address is neither all-nodes multicast address nor in bond_validate_na()
3417 if (ipv6_addr_any(saddr) || in bond_validate_na()
3420 slave_dbg(bond->dev, slave->dev, "%s: sip %pI6c tip %pI6c not found\n", in bond_validate_na()
3425 i = bond_get_targets_ip6(bond->params.ns_targets, saddr); in bond_validate_na()
3426 if (i == -1) { in bond_validate_na()
3427 slave_dbg(bond->dev, slave->dev, "%s: sip %pI6c not found in targets\n", in bond_validate_na()
3431 slave->last_rx = jiffies; in bond_validate_na()
3432 slave->target_last_arp_rx[i] = jiffies; in bond_validate_na()
3436 struct slave *slave) in bond_na_rcv() argument
3438 struct slave *curr_active_slave, *curr_arp_slave; in bond_na_rcv()
3445 if (skb->pkt_type == PACKET_OTHERHOST || in bond_na_rcv()
3446 skb->pkt_type == PACKET_LOOPBACK) in bond_na_rcv()
3450 if (!combined || combined->ip6.nexthdr != NEXTHDR_ICMP || in bond_na_rcv()
3451 (combined->icmp6.icmp6_type != NDISC_NEIGHBOUR_SOLICITATION && in bond_na_rcv()
3452 combined->icmp6.icmp6_type != NDISC_NEIGHBOUR_ADVERTISEMENT)) in bond_na_rcv()
3455 saddr = &combined->ip6.saddr; in bond_na_rcv()
3456 daddr = &combined->ip6.daddr; in bond_na_rcv()
3458 slave_dbg(bond->dev, slave->dev, "%s: %s/%d av %d sv %d sip %pI6c tip %pI6c\n", in bond_na_rcv()
3459 __func__, slave->dev->name, bond_slave_state(slave), in bond_na_rcv()
3460 bond->params.arp_validate, slave_do_arp_validate(bond, slave), in bond_na_rcv()
3463 curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_na_rcv()
3464 curr_arp_slave = rcu_dereference(bond->current_arp_slave); in bond_na_rcv()
3466 /* We 'trust' the received ARP enough to validate it if: in bond_na_rcv()
3469 if (bond_is_active_slave(slave)) in bond_na_rcv()
3470 bond_validate_na(bond, slave, saddr, daddr); in bond_na_rcv()
3471 else if (curr_active_slave && in bond_na_rcv()
3473 curr_active_slave->last_link_up)) in bond_na_rcv()
3474 bond_validate_na(bond, slave, daddr, saddr); in bond_na_rcv()
3475 else if (curr_arp_slave && in bond_na_rcv()
3477 bond_validate_na(bond, slave, saddr, daddr); in bond_na_rcv()
3485 struct slave *slave) in bond_rcv_validate() argument
3487 #if IS_ENABLED(CONFIG_IPV6) in bond_rcv_validate()
3488 bool is_ipv6 = skb->protocol == __cpu_to_be16(ETH_P_IPV6); in bond_rcv_validate()
3490 bool is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP); in bond_rcv_validate()
3492 slave_dbg(bond->dev, slave->dev, "%s: skb->dev %s\n", in bond_rcv_validate()
3493 __func__, skb->dev->name); in bond_rcv_validate()
3496 if (!slave_do_arp_validate(bond, slave)) { in bond_rcv_validate()
3497 if ((slave_do_arp_validate_only(bond) && is_arp) || in bond_rcv_validate()
3498 #if IS_ENABLED(CONFIG_IPV6) in bond_rcv_validate()
3502 slave->last_rx = jiffies; in bond_rcv_validate()
3504 } else if (is_arp) { in bond_rcv_validate()
3505 return bond_arp_rcv(skb, bond, slave); in bond_rcv_validate()
3506 #if IS_ENABLED(CONFIG_IPV6) in bond_rcv_validate()
3507 } else if (is_ipv6) { in bond_rcv_validate()
3508 return bond_na_rcv(skb, bond, slave); in bond_rcv_validate()
3515 static void bond_send_validate(struct bonding *bond, struct slave *slave) in bond_send_validate() argument
3517 bond_arp_send_all(bond, slave); in bond_send_validate()
3518 #if IS_ENABLED(CONFIG_IPV6) in bond_send_validate()
3519 bond_ns_send_all(bond, slave); in bond_send_validate()
3523 /* function to verify if we're in the arp_interval timeslice, returns true if
3524 * (last_act - arp_interval) <= jiffies <= (last_act + mod * arp_interval +
3530 int delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval); in bond_time_in_interval()
3533 last_act - delta_in_ticks, in bond_time_in_interval()
3537 /* This function is called regularly to monitor each slave's link
3539 * is used in load-balancing mode. if the adapter has been dormant, then an
3545 struct slave *slave, *oldcurrent; in bond_loadbalance_arp_mon() local
3549 if (!bond_has_slaves(bond)) in bond_loadbalance_arp_mon()
3554 oldcurrent = rcu_dereference(bond->curr_active_slave); in bond_loadbalance_arp_mon()
3555 /* see if any of the previous devices are up now (i.e. they have in bond_loadbalance_arp_mon()
3557 * the picture unless it is null. also, slave->last_link_up is not in bond_loadbalance_arp_mon()
3558 * needed here because we send an arp on each slave and give a slave in bond_loadbalance_arp_mon()
3563 bond_for_each_slave_rcu(bond, slave, iter) { in bond_loadbalance_arp_mon()
3564 unsigned long last_tx = slave_last_tx(slave); in bond_loadbalance_arp_mon()
3566 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_loadbalance_arp_mon()
3568 if (slave->link != BOND_LINK_UP) { in bond_loadbalance_arp_mon()
3569 if (bond_time_in_interval(bond, last_tx, 1) && in bond_loadbalance_arp_mon()
3570 bond_time_in_interval(bond, slave->last_rx, 1)) { in bond_loadbalance_arp_mon()
3572 bond_propose_link_state(slave, BOND_LINK_UP); in bond_loadbalance_arp_mon()
3575 /* primary_slave has no meaning in round-robin in bond_loadbalance_arp_mon()
3576 * mode. the window of a slave being up and in bond_loadbalance_arp_mon()
3580 if (!oldcurrent) { in bond_loadbalance_arp_mon()
3581 slave_info(bond->dev, slave->dev, "link status definitely up\n"); in bond_loadbalance_arp_mon()
3584 slave_info(bond->dev, slave->dev, "interface is now up\n"); in bond_loadbalance_arp_mon()
3588 /* slave->link == BOND_LINK_UP */ in bond_loadbalance_arp_mon()
3592 * if we don't know our ip yet in bond_loadbalance_arp_mon()
3594 if (!bond_time_in_interval(bond, last_tx, bond->params.missed_max) || in bond_loadbalance_arp_mon()
3595 !bond_time_in_interval(bond, slave->last_rx, bond->params.missed_max)) { in bond_loadbalance_arp_mon()
3597 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_loadbalance_arp_mon()
3600 if (slave->link_failure_count < UINT_MAX) in bond_loadbalance_arp_mon()
3601 slave->link_failure_count++; in bond_loadbalance_arp_mon()
3603 slave_info(bond->dev, slave->dev, "interface is now down\n"); in bond_loadbalance_arp_mon()
3605 if (slave == oldcurrent) in bond_loadbalance_arp_mon()
3610 /* note: if switch is in round-robin mode, all links in bond_loadbalance_arp_mon()
3611 * must tx arp to ensure all links rx an arp - otherwise in bond_loadbalance_arp_mon()
3612 * links may oscillate or not come up at all; if switch is in bond_loadbalance_arp_mon()
3614 * do - all replies will be rx'ed on same link causing slaves in bond_loadbalance_arp_mon()
3617 if (bond_slave_is_up(slave)) in bond_loadbalance_arp_mon()
3618 bond_send_validate(bond, slave); in bond_loadbalance_arp_mon()
3623 if (do_failover || slave_state_changed) { in bond_loadbalance_arp_mon()
3624 if (!rtnl_trylock()) in bond_loadbalance_arp_mon()
3627 bond_for_each_slave(bond, slave, iter) { in bond_loadbalance_arp_mon()
3628 if (slave->link_new_state != BOND_LINK_NOCHANGE) in bond_loadbalance_arp_mon()
3629 slave->link = slave->link_new_state; in bond_loadbalance_arp_mon()
3632 if (slave_state_changed) { in bond_loadbalance_arp_mon()
3634 if (BOND_MODE(bond) == BOND_MODE_XOR) in bond_loadbalance_arp_mon()
3637 if (do_failover) { in bond_loadbalance_arp_mon()
3646 if (bond->params.arp_interval) in bond_loadbalance_arp_mon()
3647 queue_delayed_work(bond->wq, &bond->arp_work, in bond_loadbalance_arp_mon()
3648 msecs_to_jiffies(bond->params.arp_interval)); in bond_loadbalance_arp_mon()
3651 /* Called to inspect slaves for active-backup mode ARP monitor link state
3653 * should take place for the slave. Returns 0 if no changes are found, >0
3654 * if changes to link states must be committed.
3662 struct slave *slave; in bond_ab_arp_inspect() local
3665 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_inspect()
3666 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_ab_arp_inspect()
3667 last_rx = slave_last_rx(bond, slave); in bond_ab_arp_inspect()
3669 if (slave->link != BOND_LINK_UP) { in bond_ab_arp_inspect()
3670 if (bond_time_in_interval(bond, last_rx, 1)) { in bond_ab_arp_inspect()
3671 bond_propose_link_state(slave, BOND_LINK_UP); in bond_ab_arp_inspect()
3673 } else if (slave->link == BOND_LINK_BACK) { in bond_ab_arp_inspect()
3674 bond_propose_link_state(slave, BOND_LINK_FAIL); in bond_ab_arp_inspect()
3684 if (bond_time_in_interval(bond, slave->last_link_up, 2)) in bond_ab_arp_inspect()
3687 /* Backup slave is down if: in bond_ab_arp_inspect()
3688 * - No current_arp_slave AND in bond_ab_arp_inspect()
3689 * - more than (missed_max+1)*delta since last receive AND in bond_ab_arp_inspect()
3690 * - the bond has an IP address in bond_ab_arp_inspect()
3692 * Note: a non-null current_arp_slave indicates in bond_ab_arp_inspect()
3695 * we only take the curr_active_slave down - this in bond_ab_arp_inspect()
3696 * gives each slave a chance to tx/rx traffic in bond_ab_arp_inspect()
3699 if (!bond_is_active_slave(slave) && in bond_ab_arp_inspect()
3700 !rcu_access_pointer(bond->current_arp_slave) && in bond_ab_arp_inspect()
3701 !bond_time_in_interval(bond, last_rx, bond->params.missed_max + 1)) { in bond_ab_arp_inspect()
3702 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_ab_arp_inspect()
3706 /* Active slave is down if: in bond_ab_arp_inspect()
3707 * - more than missed_max*delta since transmitting OR in bond_ab_arp_inspect()
3708 * - (more than missed_max*delta since receive AND in bond_ab_arp_inspect()
3711 last_tx = slave_last_tx(slave); in bond_ab_arp_inspect()
3712 if (bond_is_active_slave(slave) && in bond_ab_arp_inspect()
3713 (!bond_time_in_interval(bond, last_tx, bond->params.missed_max) || in bond_ab_arp_inspect()
3714 !bond_time_in_interval(bond, last_rx, bond->params.missed_max))) { in bond_ab_arp_inspect()
3715 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_ab_arp_inspect()
3724 * active-backup mode ARP monitor.
3733 struct slave *slave; in bond_ab_arp_commit() local
3735 bond_for_each_slave(bond, slave, iter) { in bond_ab_arp_commit()
3736 switch (slave->link_new_state) { in bond_ab_arp_commit()
3741 last_tx = slave_last_tx(slave); in bond_ab_arp_commit()
3742 if (rtnl_dereference(bond->curr_active_slave) != slave || in bond_ab_arp_commit()
3743 (!rtnl_dereference(bond->curr_active_slave) && in bond_ab_arp_commit()
3745 struct slave *current_arp_slave; in bond_ab_arp_commit()
3747 current_arp_slave = rtnl_dereference(bond->current_arp_slave); in bond_ab_arp_commit()
3748 bond_set_slave_link_state(slave, BOND_LINK_UP, in bond_ab_arp_commit()
3750 if (current_arp_slave) { in bond_ab_arp_commit()
3754 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3757 slave_info(bond->dev, slave->dev, "link status definitely up\n"); in bond_ab_arp_commit()
3759 if (!rtnl_dereference(bond->curr_active_slave) || in bond_ab_arp_commit()
3760 slave == rtnl_dereference(bond->primary_slave) || in bond_ab_arp_commit()
3761 slave->prio > rtnl_dereference(bond->curr_active_slave)->prio) in bond_ab_arp_commit()
3769 if (slave->link_failure_count < UINT_MAX) in bond_ab_arp_commit()
3770 slave->link_failure_count++; in bond_ab_arp_commit()
3772 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_ab_arp_commit()
3774 bond_set_slave_inactive_flags(slave, in bond_ab_arp_commit()
3777 slave_info(bond->dev, slave->dev, "link status definitely down, disabling slave\n"); in bond_ab_arp_commit()
3779 if (slave == rtnl_dereference(bond->curr_active_slave)) { in bond_ab_arp_commit()
3780 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3787 bond_set_slave_link_state(slave, BOND_LINK_FAIL, in bond_ab_arp_commit()
3789 bond_set_slave_inactive_flags(slave, in bond_ab_arp_commit()
3792 /* A slave has just been enslaved and has become in bond_ab_arp_commit()
3793 * the current active slave. in bond_ab_arp_commit()
3795 if (rtnl_dereference(bond->curr_active_slave)) in bond_ab_arp_commit()
3796 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3800 slave_err(bond->dev, slave->dev, in bond_ab_arp_commit()
3801 "impossible: link_new_state %d on slave\n", in bond_ab_arp_commit()
3802 slave->link_new_state); in bond_ab_arp_commit()
3807 if (do_failover) { in bond_ab_arp_commit()
3816 /* Send ARP probes for active-backup mode ARP monitor.
3822 struct slave *slave, *before = NULL, *new_slave = NULL, in bond_ab_arp_probe() local
3823 *curr_arp_slave = rcu_dereference(bond->current_arp_slave), in bond_ab_arp_probe()
3824 *curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_ab_arp_probe()
3829 if (curr_arp_slave && curr_active_slave) in bond_ab_arp_probe()
3830 netdev_info(bond->dev, "PROBE: c_arp %s && cas %s BAD\n", in bond_ab_arp_probe()
3831 curr_arp_slave->dev->name, in bond_ab_arp_probe()
3832 curr_active_slave->dev->name); in bond_ab_arp_probe()
3834 if (curr_active_slave) { in bond_ab_arp_probe()
3839 /* if we don't have a curr_active_slave, search for the next available in bond_ab_arp_probe()
3840 * backup slave from the current_arp_slave and make it the candidate in bond_ab_arp_probe()
3844 if (!curr_arp_slave) { in bond_ab_arp_probe()
3846 if (!curr_arp_slave) in bond_ab_arp_probe()
3850 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_probe()
3851 if (!found && !before && bond_slave_is_up(slave)) in bond_ab_arp_probe()
3852 before = slave; in bond_ab_arp_probe()
3854 if (found && !new_slave && bond_slave_is_up(slave)) in bond_ab_arp_probe()
3855 new_slave = slave; in bond_ab_arp_probe()
3856 /* if the link state is up at this point, we in bond_ab_arp_probe()
3857 * mark it down - this can happen if we have in bond_ab_arp_probe()
3860 * one the current slave so it is still marked in bond_ab_arp_probe()
3863 if (!bond_slave_is_up(slave) && slave->link == BOND_LINK_UP) { in bond_ab_arp_probe()
3864 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_ab_arp_probe()
3866 if (slave->link_failure_count < UINT_MAX) in bond_ab_arp_probe()
3867 slave->link_failure_count++; in bond_ab_arp_probe()
3869 bond_set_slave_inactive_flags(slave, in bond_ab_arp_probe()
3872 slave_info(bond->dev, slave->dev, "backup interface is now down\n"); in bond_ab_arp_probe()
3874 if (slave == curr_arp_slave) in bond_ab_arp_probe()
3878 if (!new_slave && before) in bond_ab_arp_probe()
3881 if (!new_slave) in bond_ab_arp_probe()
3888 new_slave->last_link_up = jiffies; in bond_ab_arp_probe()
3889 rcu_assign_pointer(bond->current_arp_slave, new_slave); in bond_ab_arp_probe()
3892 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_probe()
3893 if (slave->should_notify || slave->should_notify_link) { in bond_ab_arp_probe()
3907 delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval); in bond_activebackup_arp_mon()
3909 if (!bond_has_slaves(bond)) in bond_activebackup_arp_mon()
3916 if (bond_ab_arp_inspect(bond)) { in bond_activebackup_arp_mon()
3920 if (!rtnl_trylock()) { in bond_activebackup_arp_mon()
3936 if (bond->params.arp_interval) in bond_activebackup_arp_mon()
3937 queue_delayed_work(bond->wq, &bond->arp_work, delta_in_ticks); in bond_activebackup_arp_mon()
3939 if (should_notify_peers || should_notify_rtnl) { in bond_activebackup_arp_mon()
3940 if (!rtnl_trylock()) in bond_activebackup_arp_mon()
3943 if (should_notify_peers) { in bond_activebackup_arp_mon()
3944 bond->send_peer_notif--; in bond_activebackup_arp_mon()
3946 bond->dev); in bond_activebackup_arp_mon()
3948 if (should_notify_rtnl) { in bond_activebackup_arp_mon()
3962 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) in bond_arp_monitor()
3968 /*-------------------------- netdev event handling --------------------------*/
4010 struct slave *slave = bond_slave_get_rtnl(slave_dev), *primary; in bond_slave_netdev_event() local
4016 * slave will be NULL in bond_slave_netdev_event()
4018 if (!slave) { in bond_slave_netdev_event()
4019 netdev_dbg(slave_dev, "%s called on NULL slave\n", __func__); in bond_slave_netdev_event()
4023 bond_dev = slave->bond->dev; in bond_slave_netdev_event()
4024 bond = slave->bond; in bond_slave_netdev_event()
4025 primary = rtnl_dereference(bond->primary_slave); in bond_slave_netdev_event()
4031 if (bond_dev->type != ARPHRD_ETHER) in bond_slave_netdev_event()
4039 * Getting invalid Speed/Duplex values here will put slave in bond_slave_netdev_event()
4040 * in weird state. Mark it as link-fail if the link was in bond_slave_netdev_event()
4041 * previously up or link-down if it hasn't yet come up, and in bond_slave_netdev_event()
4042 * let link-monitoring (miimon) set it right when correct in bond_slave_netdev_event()
4045 if (bond_update_speed_duplex(slave) && in bond_slave_netdev_event()
4047 if (slave->last_link_up) in bond_slave_netdev_event()
4048 slave->link = BOND_LINK_FAIL; in bond_slave_netdev_event()
4050 slave->link = BOND_LINK_DOWN; in bond_slave_netdev_event()
4053 if (BOND_MODE(bond) == BOND_MODE_8023AD) in bond_slave_netdev_event()
4054 bond_3ad_adapter_speed_duplex_changed(slave); in bond_slave_netdev_event()
4057 /* Refresh slave-array if applicable! in bond_slave_netdev_event()
4058 * If the setup does not use miimon or arpmon (mode-specific!), in bond_slave_netdev_event()
4059 * then these events will not cause the slave-array to be in bond_slave_netdev_event()
4060 * refreshed. This will cause xmit to use a slave that is not in bond_slave_netdev_event()
4062 * events. If these (miimon/arpmon) parameters are configured in bond_slave_netdev_event()
4065 if (bond_mode_can_use_xmit_hash(bond)) in bond_slave_netdev_event()
4071 * an active-backup bond, slaves need in bond_slave_netdev_event()
4076 * take over the slave's change_mtu in bond_slave_netdev_event()
4082 /* we don't care if we don't have primary set */ in bond_slave_netdev_event()
4083 if (!bond_uses_primary(bond) || in bond_slave_netdev_event()
4084 !bond->params.primary[0]) in bond_slave_netdev_event()
4087 if (slave == primary) { in bond_slave_netdev_event()
4088 /* slave's name changed - he's no longer primary */ in bond_slave_netdev_event()
4089 RCU_INIT_POINTER(bond->primary_slave, NULL); in bond_slave_netdev_event()
4090 } else if (!strcmp(slave_dev->name, bond->params.primary)) { in bond_slave_netdev_event()
4091 /* we have a new primary slave */ in bond_slave_netdev_event()
4092 rcu_assign_pointer(bond->primary_slave, slave); in bond_slave_netdev_event()
4093 } else { /* we didn't change primary - exit */ in bond_slave_netdev_event()
4097 netdev_info(bond->dev, "Primary slave changed to %s, reselecting active slave\n", in bond_slave_netdev_event()
4098 primary ? slave_dev->name : "none"); in bond_slave_netdev_event()
4105 if (!bond->notifier_ctx) { in bond_slave_netdev_event()
4106 bond->notifier_ctx = true; in bond_slave_netdev_event()
4108 bond->notifier_ctx = false; in bond_slave_netdev_event()
4113 call_netdevice_notifiers(event, slave->bond->dev); in bond_slave_netdev_event()
4129 * locks for us to safely manipulate the slave devices (RTNL lock,
4140 if (!(event_dev->priv_flags & IFF_BONDING)) in bond_netdev_event()
4143 if (event_dev->flags & IFF_MASTER) { in bond_netdev_event()
4147 if (ret != NOTIFY_DONE) in bond_netdev_event()
4151 if (event_dev->flags & IFF_SLAVE) in bond_netdev_event()
4161 /*---------------------------- Hashing Policies -----------------------------*/
4164 * If skb is given the data is linearized if necessary via pskb_may_pull.
4169 if (likely(n <= hlen)) in bond_pull_data()
4171 else if (skb && likely(pskb_may_pull(skb, n))) in bond_pull_data()
4172 return skb->data; in bond_pull_data()
4183 if (!data) in bond_eth_hash()
4187 return ep->h_dest[5] ^ ep->h_source[5] ^ be16_to_cpu(ep->h_proto); in bond_eth_hash()
4196 if (l2_proto == htons(ETH_P_IP)) { in bond_flow_ip()
4198 if (!data) in bond_flow_ip()
4203 *nhoff += iph->ihl << 2; in bond_flow_ip()
4204 if (!ip_is_fragment(iph)) in bond_flow_ip()
4205 *ip_proto = iph->protocol; in bond_flow_ip()
4206 } else if (l2_proto == htons(ETH_P_IPV6)) { in bond_flow_ip()
4208 if (!data) in bond_flow_ip()
4214 *ip_proto = iph6->nexthdr; in bond_flow_ip()
4219 if (l34 && *ip_proto >= 0) in bond_flow_ip()
4220 fk->ports.ports = __skb_flow_get_ports(skb, *nhoff, *ip_proto, data, hlen); in bond_flow_ip()
4233 if (!data) in bond_vlan_srcmac_hash()
4238 srcmac_vendor = (srcmac_vendor << 8) | mac_hdr->h_source[i]; in bond_vlan_srcmac_hash()
4241 srcmac_dev = (srcmac_dev << 8) | mac_hdr->h_source[i]; in bond_vlan_srcmac_hash()
4243 if (skb && skb_vlan_tag_present(skb)) in bond_vlan_srcmac_hash()
4253 bool l34 = bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34; in bond_flow_dissect()
4254 int ip_proto = -1; in bond_flow_dissect()
4256 switch (bond->params.xmit_policy) { in bond_flow_dissect()
4266 fk->ports.ports = 0; in bond_flow_dissect()
4267 memset(&fk->icmp, 0, sizeof(fk->icmp)); in bond_flow_dissect()
4268 if (!bond_flow_ip(skb, fk, data, hlen, l2_proto, &nhoff, &ip_proto, l34)) in bond_flow_dissect()
4276 if (ip_proto == IPPROTO_ICMP || ip_proto == IPPROTO_ICMPV6) { in bond_flow_dissect()
4277 skb_flow_get_icmp_tci(skb, &fk->icmp, data, nhoff, hlen); in bond_flow_dissect()
4278 if (ip_proto == IPPROTO_ICMP) { in bond_flow_dissect()
4279 if (!icmp_is_err(fk->icmp.type)) in bond_flow_dissect()
4283 } else if (ip_proto == IPPROTO_ICMPV6) { in bond_flow_dissect()
4284 if (!icmpv6_is_err(fk->icmp.type)) in bond_flow_dissect()
4303 if (xmit_policy == BOND_XMIT_POLICY_LAYER34 || in bond_ip_hash()
4310 /* Generate hash based on xmit policy. If @skb is given it is used to linearize
4311 * the data as required, but this function can be used without it if the data is
4320 if (bond->params.xmit_policy == BOND_XMIT_POLICY_VLAN_SRCMAC) in __bond_xmit_hash()
4323 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER2 || in __bond_xmit_hash()
4327 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER23 || in __bond_xmit_hash()
4328 bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP23) { in __bond_xmit_hash()
4331 if (flow.icmp.id) in __bond_xmit_hash()
4337 return bond_ip_hash(hash, &flow, bond->params.xmit_policy); in __bond_xmit_hash()
4341 * bond_xmit_hash - generate a hash value based on the xmit policy
4350 if (bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP34 && in bond_xmit_hash()
4351 skb->l4_hash) in bond_xmit_hash()
4352 return skb->hash; in bond_xmit_hash()
4354 return __bond_xmit_hash(bond, skb, skb->data, skb->protocol, in bond_xmit_hash()
4360 * bond_xmit_hash_xdp - generate a hash value based on the xmit policy
4370 if (xdp->data + sizeof(struct ethhdr) > xdp->data_end) in bond_xmit_hash_xdp()
4373 eth = (struct ethhdr *)xdp->data; in bond_xmit_hash_xdp()
4375 return __bond_xmit_hash(bond, NULL, xdp->data, eth->h_proto, 0, in bond_xmit_hash_xdp()
4376 sizeof(struct ethhdr), xdp->data_end - xdp->data); in bond_xmit_hash_xdp()
4379 /*-------------------------- Device entry points ----------------------------*/
4383 INIT_DELAYED_WORK(&bond->mcast_work, in bond_work_init_all()
4385 INIT_DELAYED_WORK(&bond->alb_work, bond_alb_monitor); in bond_work_init_all()
4386 INIT_DELAYED_WORK(&bond->mii_work, bond_mii_monitor); in bond_work_init_all()
4387 INIT_DELAYED_WORK(&bond->arp_work, bond_arp_monitor); in bond_work_init_all()
4388 INIT_DELAYED_WORK(&bond->ad_work, bond_3ad_state_machine_handler); in bond_work_init_all()
4389 INIT_DELAYED_WORK(&bond->slave_arr_work, bond_slave_arr_handler); in bond_work_init_all()
4394 cancel_delayed_work_sync(&bond->mii_work); in bond_work_cancel_all()
4395 cancel_delayed_work_sync(&bond->arp_work); in bond_work_cancel_all()
4396 cancel_delayed_work_sync(&bond->alb_work); in bond_work_cancel_all()
4397 cancel_delayed_work_sync(&bond->ad_work); in bond_work_cancel_all()
4398 cancel_delayed_work_sync(&bond->mcast_work); in bond_work_cancel_all()
4399 cancel_delayed_work_sync(&bond->slave_arr_work); in bond_work_cancel_all()
4406 struct slave *slave; in bond_open() local
4408 if (BOND_MODE(bond) == BOND_MODE_ROUNDROBIN && !bond->rr_tx_counter) { in bond_open()
4409 bond->rr_tx_counter = alloc_percpu(u32); in bond_open()
4410 if (!bond->rr_tx_counter) in bond_open()
4411 return -ENOMEM; in bond_open()
4414 /* reset slave->backup and slave->inactive */ in bond_open()
4415 if (bond_has_slaves(bond)) { in bond_open()
4416 bond_for_each_slave(bond, slave, iter) { in bond_open()
4417 if (bond_uses_primary(bond) && in bond_open()
4418 slave != rcu_access_pointer(bond->curr_active_slave)) { in bond_open()
4419 bond_set_slave_inactive_flags(slave, in bond_open()
4421 } else if (BOND_MODE(bond) != BOND_MODE_8023AD) { in bond_open()
4422 bond_set_slave_active_flags(slave, in bond_open()
4428 if (bond_is_lb(bond)) { in bond_open()
4432 if (bond_alb_initialize(bond, (BOND_MODE(bond) == BOND_MODE_ALB))) in bond_open()
4433 return -ENOMEM; in bond_open()
4434 if (bond->params.tlb_dynamic_lb || BOND_MODE(bond) == BOND_MODE_ALB) in bond_open()
4435 queue_delayed_work(bond->wq, &bond->alb_work, 0); in bond_open()
4438 if (bond->params.miimon) /* link check interval, in milliseconds. */ in bond_open()
4439 queue_delayed_work(bond->wq, &bond->mii_work, 0); in bond_open()
4441 if (bond->params.arp_interval) { /* arp interval, in milliseconds. */ in bond_open()
4442 queue_delayed_work(bond->wq, &bond->arp_work, 0); in bond_open()
4443 bond->recv_probe = bond_rcv_validate; in bond_open()
4446 if (BOND_MODE(bond) == BOND_MODE_8023AD) { in bond_open()
4447 queue_delayed_work(bond->wq, &bond->ad_work, 0); in bond_open()
4449 bond->recv_probe = bond_3ad_lacpdu_recv; in bond_open()
4452 bond_for_each_slave(bond, slave, iter) in bond_open()
4453 dev_mc_add(slave->dev, lacpdu_mcast_addr); in bond_open()
4456 if (bond_mode_can_use_xmit_hash(bond)) in bond_open()
4465 struct slave *slave; in bond_close() local
4468 bond->send_peer_notif = 0; in bond_close()
4469 if (bond_is_lb(bond)) in bond_close()
4471 bond->recv_probe = NULL; in bond_close()
4473 if (bond_uses_primary(bond)) { in bond_close()
4475 slave = rcu_dereference(bond->curr_active_slave); in bond_close()
4476 if (slave) in bond_close()
4477 bond_hw_addr_flush(bond_dev, slave->dev); in bond_close()
4482 bond_for_each_slave(bond, slave, iter) in bond_close()
4483 bond_hw_addr_flush(bond_dev, slave->dev); in bond_close()
4504 s64 delta = nv - ov; in bond_fold_stats()
4506 /* detects if this particular field is 32bit only */ in bond_fold_stats()
4507 if (((nv | ov) >> 32) == 0) in bond_fold_stats()
4508 delta = (s64)(s32)((u32)nv - (u32)ov); in bond_fold_stats()
4513 if (delta > 0) in bond_fold_stats()
4526 iter = &dev->adj_list.lower; in bond_get_lowest_level_rcu()
4532 if (!ldev) in bond_get_lowest_level_rcu()
4536 niter = &ldev->adj_list.lower; in bond_get_lowest_level_rcu()
4539 if (max <= cur) in bond_get_lowest_level_rcu()
4544 if (!next) { in bond_get_lowest_level_rcu()
4545 if (!cur) in bond_get_lowest_level_rcu()
4547 next = dev_stack[--cur]; in bond_get_lowest_level_rcu()
4565 struct slave *slave; in bond_get_stats() local
4574 spin_lock_nested(&bond->stats_lock, nest_level); in bond_get_stats()
4575 memcpy(stats, &bond->bond_stats, sizeof(*stats)); in bond_get_stats()
4577 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_stats()
4579 dev_get_stats(slave->dev, &temp); in bond_get_stats()
4581 bond_fold_stats(stats, new, &slave->slave_stats); in bond_get_stats()
4583 /* save off the slave stats for the next run */ in bond_get_stats()
4584 memcpy(&slave->slave_stats, new, sizeof(*new)); in bond_get_stats()
4587 memcpy(&bond->bond_stats, stats, sizeof(*stats)); in bond_get_stats()
4588 spin_unlock(&bond->stats_lock); in bond_get_stats()
4602 if (!mii) in bond_eth_ioctl()
4603 return -EINVAL; in bond_eth_ioctl()
4605 mii->phy_id = 0; in bond_eth_ioctl()
4612 if (!mii) in bond_eth_ioctl()
4613 return -EINVAL; in bond_eth_ioctl()
4615 if (mii->reg_num == 1) { in bond_eth_ioctl()
4616 mii->val_out = 0; in bond_eth_ioctl()
4617 if (netif_carrier_ok(bond->dev)) in bond_eth_ioctl()
4618 mii->val_out = BMSR_LSTATUS; in bond_eth_ioctl()
4623 return -EOPNOTSUPP; in bond_eth_ioctl()
4645 u_binfo = (struct ifbond __user *)ifr->ifr_data; in bond_do_ioctl()
4647 if (copy_from_user(&k_binfo, u_binfo, sizeof(ifbond))) in bond_do_ioctl()
4648 return -EFAULT; in bond_do_ioctl()
4651 if (copy_to_user(u_binfo, &k_binfo, sizeof(ifbond))) in bond_do_ioctl()
4652 return -EFAULT; in bond_do_ioctl()
4656 u_sinfo = (struct ifslave __user *)ifr->ifr_data; in bond_do_ioctl()
4658 if (copy_from_user(&k_sinfo, u_sinfo, sizeof(ifslave))) in bond_do_ioctl()
4659 return -EFAULT; in bond_do_ioctl()
4662 if (res == 0 && in bond_do_ioctl()
4664 return -EFAULT; in bond_do_ioctl()
4673 if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) in bond_do_ioctl()
4674 return -EPERM; in bond_do_ioctl()
4676 slave_dev = __dev_get_by_name(net, ifr->ifr_slave); in bond_do_ioctl()
4680 if (!slave_dev) in bond_do_ioctl()
4681 return -ENODEV; in bond_do_ioctl()
4694 bond_opt_initstr(&newval, slave_dev->name); in bond_do_ioctl()
4699 res = -EOPNOTSUPP; in bond_do_ioctl()
4725 return -EOPNOTSUPP; in bond_siocdevprivate()
4732 if (change & IFF_PROMISC) in bond_change_rx_flags()
4734 bond_dev->flags & IFF_PROMISC ? 1 : -1); in bond_change_rx_flags()
4736 if (change & IFF_ALLMULTI) in bond_change_rx_flags()
4738 bond_dev->flags & IFF_ALLMULTI ? 1 : -1); in bond_change_rx_flags()
4745 struct slave *slave; in bond_set_rx_mode() local
4748 if (bond_uses_primary(bond)) { in bond_set_rx_mode()
4749 slave = rcu_dereference(bond->curr_active_slave); in bond_set_rx_mode()
4750 if (slave) { in bond_set_rx_mode()
4751 dev_uc_sync(slave->dev, bond_dev); in bond_set_rx_mode()
4752 dev_mc_sync(slave->dev, bond_dev); in bond_set_rx_mode()
4755 bond_for_each_slave_rcu(bond, slave, iter) { in bond_set_rx_mode()
4756 dev_uc_sync_multiple(slave->dev, bond_dev); in bond_set_rx_mode()
4757 dev_mc_sync_multiple(slave->dev, bond_dev); in bond_set_rx_mode()
4765 struct bonding *bond = netdev_priv(n->dev); in bond_neigh_init()
4768 struct slave *slave; in bond_neigh_init() local
4772 slave = bond_first_slave_rcu(bond); in bond_neigh_init()
4773 if (!slave) in bond_neigh_init()
4775 slave_ops = slave->dev->netdev_ops; in bond_neigh_init()
4776 if (!slave_ops->ndo_neigh_setup) in bond_neigh_init()
4788 ret = slave_ops->ndo_neigh_setup(slave->dev, &parms); in bond_neigh_init()
4790 if (ret) in bond_neigh_init()
4793 if (parms.neigh_setup) in bond_neigh_init()
4801 * slave exists. So we must declare proxy setup function which will
4802 * be used at run time to resolve the actual slave neigh param setup.
4805 * underlying devices. In that case - do nothing, we're already set up from
4812 if (parms->dev == dev) in bond_neigh_setup()
4813 parms->neigh_setup = bond_neigh_init; in bond_neigh_setup()
4822 struct slave *slave, *rollback_slave; in bond_change_mtu() local
4828 bond_for_each_slave(bond, slave, iter) { in bond_change_mtu()
4829 slave_dbg(bond_dev, slave->dev, "s %p c_m %p\n", in bond_change_mtu()
4830 slave, slave->dev->netdev_ops->ndo_change_mtu); in bond_change_mtu()
4832 res = dev_set_mtu(slave->dev, new_mtu); in bond_change_mtu()
4834 if (res) { in bond_change_mtu()
4835 /* If we failed to set the slave's mtu to the new value in bond_change_mtu()
4837 * mode, because if we allow the backup slaves to have in bond_change_mtu()
4838 * different mtu values than the active slave we'll in bond_change_mtu()
4843 slave_dbg(bond_dev, slave->dev, "err %d setting mtu to %d\n", in bond_change_mtu()
4849 WRITE_ONCE(bond_dev->mtu, new_mtu); in bond_change_mtu()
4854 /* unwind from head to the slave that failed */ in bond_change_mtu()
4858 if (rollback_slave == slave) in bond_change_mtu()
4861 tmp_res = dev_set_mtu(rollback_slave->dev, bond_dev->mtu); in bond_change_mtu()
4862 if (tmp_res) in bond_change_mtu()
4863 slave_dbg(bond_dev, rollback_slave->dev, "unwind err %d\n", in bond_change_mtu()
4879 struct slave *slave, *rollback_slave; in bond_set_mac_address() local
4884 if (BOND_MODE(bond) == BOND_MODE_ALB) in bond_set_mac_address()
4890 /* If fail_over_mac is enabled, do nothing and return success. in bond_set_mac_address()
4893 if (bond->params.fail_over_mac && in bond_set_mac_address()
4897 if (!is_valid_ether_addr(ss->__data)) in bond_set_mac_address()
4898 return -EADDRNOTAVAIL; in bond_set_mac_address()
4900 bond_for_each_slave(bond, slave, iter) { in bond_set_mac_address()
4901 slave_dbg(bond_dev, slave->dev, "%s: slave=%p\n", in bond_set_mac_address()
4902 __func__, slave); in bond_set_mac_address()
4903 res = dev_set_mac_address(slave->dev, addr, NULL); in bond_set_mac_address()
4904 if (res) { in bond_set_mac_address()
4905 /* TODO: consider downing the slave in bond_set_mac_address()
4911 slave_dbg(bond_dev, slave->dev, "%s: err %d\n", in bond_set_mac_address()
4918 dev_addr_set(bond_dev, ss->__data); in bond_set_mac_address()
4922 memcpy(tmp_ss.__data, bond_dev->dev_addr, bond_dev->addr_len); in bond_set_mac_address()
4923 tmp_ss.ss_family = bond_dev->type; in bond_set_mac_address()
4925 /* unwind from head to the slave that failed */ in bond_set_mac_address()
4929 if (rollback_slave == slave) in bond_set_mac_address()
4932 tmp_res = dev_set_mac_address(rollback_slave->dev, in bond_set_mac_address()
4934 if (tmp_res) { in bond_set_mac_address()
4935 slave_dbg(bond_dev, rollback_slave->dev, "%s: unwind err %d\n", in bond_set_mac_address()
4944 * bond_get_slave_by_id - get xmit slave with slave_id
4946 * @slave_id: slave id up to slave_cnt-1 through which to transmit
4948 * This function tries to get slave with slave_id but in case
4949 * it fails, it tries to find the first available slave for transmission.
4951 static struct slave *bond_get_slave_by_id(struct bonding *bond, in bond_get_slave_by_id()
4955 struct slave *slave; in bond_get_slave_by_id() local
4958 /* Here we start from the slave with slave_id */ in bond_get_slave_by_id()
4959 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_slave_by_id()
4960 if (--i < 0) { in bond_get_slave_by_id()
4961 if (bond_slave_can_tx(slave)) in bond_get_slave_by_id()
4962 return slave; in bond_get_slave_by_id()
4966 /* Here we start from the first slave up to slave_id */ in bond_get_slave_by_id()
4968 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_slave_by_id()
4969 if (--i < 0) in bond_get_slave_by_id()
4971 if (bond_slave_can_tx(slave)) in bond_get_slave_by_id()
4972 return slave; in bond_get_slave_by_id()
4974 /* no slave that can tx has been found */ in bond_get_slave_by_id()
4979 * bond_rr_gen_slave_id - generate slave id based on packets_per_slave
4983 * this function generates a slave id, which is usually used as the next
4984 * slave to transmit through.
4990 int packets_per_slave = bond->params.packets_per_slave; in bond_rr_gen_slave_id()
4997 slave_id = this_cpu_inc_return(*bond->rr_tx_counter); in bond_rr_gen_slave_id()
5001 bond->params.reciprocal_packets_per_slave; in bond_rr_gen_slave_id()
5002 slave_id = this_cpu_inc_return(*bond->rr_tx_counter); in bond_rr_gen_slave_id()
5011 static struct slave *bond_xmit_roundrobin_slave_get(struct bonding *bond, in bond_xmit_roundrobin_slave_get()
5014 struct slave *slave; in bond_xmit_roundrobin_slave_get() local
5024 if (skb->protocol == htons(ETH_P_IP)) { in bond_xmit_roundrobin_slave_get()
5028 if (unlikely(!pskb_may_pull(skb, noff + sizeof(*iph)))) in bond_xmit_roundrobin_slave_get()
5032 if (iph->protocol == IPPROTO_IGMP) { in bond_xmit_roundrobin_slave_get()
5033 slave = rcu_dereference(bond->curr_active_slave); in bond_xmit_roundrobin_slave_get()
5034 if (slave) in bond_xmit_roundrobin_slave_get()
5035 return slave; in bond_xmit_roundrobin_slave_get()
5041 slave_cnt = READ_ONCE(bond->slave_cnt); in bond_xmit_roundrobin_slave_get()
5042 if (likely(slave_cnt)) { in bond_xmit_roundrobin_slave_get()
5049 static struct slave *bond_xdp_xmit_roundrobin_slave_get(struct bonding *bond, in bond_xdp_xmit_roundrobin_slave_get()
5052 struct slave *slave; in bond_xdp_xmit_roundrobin_slave_get() local
5056 void *data = xdp->data; in bond_xdp_xmit_roundrobin_slave_get()
5058 if (data + sizeof(struct ethhdr) > xdp->data_end) in bond_xdp_xmit_roundrobin_slave_get()
5065 if (eth->h_proto == htons(ETH_P_IP)) { in bond_xdp_xmit_roundrobin_slave_get()
5068 if (data + sizeof(struct iphdr) > xdp->data_end) in bond_xdp_xmit_roundrobin_slave_get()
5073 if (iph->protocol == IPPROTO_IGMP) { in bond_xdp_xmit_roundrobin_slave_get()
5074 slave = rcu_dereference(bond->curr_active_slave); in bond_xdp_xmit_roundrobin_slave_get()
5075 if (slave) in bond_xdp_xmit_roundrobin_slave_get()
5076 return slave; in bond_xdp_xmit_roundrobin_slave_get()
5082 slave_cnt = READ_ONCE(bond->slave_cnt); in bond_xdp_xmit_roundrobin_slave_get()
5083 if (likely(slave_cnt)) { in bond_xdp_xmit_roundrobin_slave_get()
5094 struct slave *slave; in bond_xmit_roundrobin() local
5096 slave = bond_xmit_roundrobin_slave_get(bond, skb); in bond_xmit_roundrobin()
5097 if (likely(slave)) in bond_xmit_roundrobin()
5098 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_xmit_roundrobin()
5103 static struct slave *bond_xmit_activebackup_slave_get(struct bonding *bond) in bond_xmit_activebackup_slave_get()
5105 return rcu_dereference(bond->curr_active_slave); in bond_xmit_activebackup_slave_get()
5108 /* In active-backup mode, we know that bond->curr_active_slave is always valid if
5115 struct slave *slave; in bond_xmit_activebackup() local
5117 slave = bond_xmit_activebackup_slave_get(bond); in bond_xmit_activebackup()
5118 if (slave) in bond_xmit_activebackup()
5119 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_xmit_activebackup()
5130 queue_delayed_work(bond->wq, &bond->slave_arr_work, delay); in bond_slave_arr_work_rearm()
5133 /* Slave array work handler. Holds only RTNL */
5140 if (!rtnl_trylock()) in bond_slave_arr_handler()
5145 if (ret) { in bond_slave_arr_handler()
5146 pr_warn_ratelimited("Failed to update slave array from WT\n"); in bond_slave_arr_handler()
5156 struct slave *skipslave) in bond_skip_slave()
5161 * slave but allocation failed (most likely!). BTW this is in bond_skip_slave()
5166 * this to-be-skipped slave to send a packet out. in bond_skip_slave()
5168 for (idx = 0; slaves && idx < slaves->count; idx++) { in bond_skip_slave()
5169 if (skipslave == slaves->arr[idx]) { in bond_skip_slave()
5170 slaves->arr[idx] = in bond_skip_slave()
5171 slaves->arr[slaves->count - 1]; in bond_skip_slave()
5172 slaves->count--; in bond_skip_slave()
5184 usable = rtnl_dereference(bond->usable_slaves); in bond_set_slave_arr()
5185 rcu_assign_pointer(bond->usable_slaves, usable_slaves); in bond_set_slave_arr()
5188 all = rtnl_dereference(bond->all_slaves); in bond_set_slave_arr()
5189 rcu_assign_pointer(bond->all_slaves, all_slaves); in bond_set_slave_arr()
5198 /* Build the usable slaves array in control path for modes that use xmit-hash
5199 * to determine the slave interface -
5206 int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) in bond_update_slave_arr()
5209 struct slave *slave; in bond_update_slave_arr() local
5217 bond->slave_cnt), GFP_KERNEL); in bond_update_slave_arr()
5219 bond->slave_cnt), GFP_KERNEL); in bond_update_slave_arr()
5220 if (!usable_slaves || !all_slaves) { in bond_update_slave_arr()
5221 ret = -ENOMEM; in bond_update_slave_arr()
5224 if (BOND_MODE(bond) == BOND_MODE_8023AD) { in bond_update_slave_arr()
5227 spin_lock_bh(&bond->mode_lock); in bond_update_slave_arr()
5228 if (bond_3ad_get_active_agg_info(bond, &ad_info)) { in bond_update_slave_arr()
5229 spin_unlock_bh(&bond->mode_lock); in bond_update_slave_arr()
5237 spin_unlock_bh(&bond->mode_lock); in bond_update_slave_arr()
5240 bond_for_each_slave(bond, slave, iter) { in bond_update_slave_arr()
5241 if (skipslave == slave) in bond_update_slave_arr()
5244 all_slaves->arr[all_slaves->count++] = slave; in bond_update_slave_arr()
5245 if (BOND_MODE(bond) == BOND_MODE_8023AD) { in bond_update_slave_arr()
5248 agg = SLAVE_AD_INFO(slave)->port.aggregator; in bond_update_slave_arr()
5249 if (!agg || agg->aggregator_identifier != agg_id) in bond_update_slave_arr()
5252 if (!bond_slave_can_tx(slave)) in bond_update_slave_arr()
5255 slave_dbg(bond->dev, slave->dev, "Adding slave to tx hash array[%d]\n", in bond_update_slave_arr()
5256 usable_slaves->count); in bond_update_slave_arr()
5258 usable_slaves->arr[usable_slaves->count++] = slave; in bond_update_slave_arr()
5264 if (ret != 0 && skipslave) { in bond_update_slave_arr()
5265 bond_skip_slave(rtnl_dereference(bond->all_slaves), in bond_update_slave_arr()
5267 bond_skip_slave(rtnl_dereference(bond->usable_slaves), in bond_update_slave_arr()
5276 static struct slave *bond_xmit_3ad_xor_slave_get(struct bonding *bond, in bond_xmit_3ad_xor_slave_get()
5280 struct slave *slave; in bond_xmit_3ad_xor_slave_get() local
5285 count = slaves ? READ_ONCE(slaves->count) : 0; in bond_xmit_3ad_xor_slave_get()
5286 if (unlikely(!count)) in bond_xmit_3ad_xor_slave_get()
5289 slave = slaves->arr[hash % count]; in bond_xmit_3ad_xor_slave_get()
5290 return slave; in bond_xmit_3ad_xor_slave_get()
5293 static struct slave *bond_xdp_xmit_3ad_xor_slave_get(struct bonding *bond, in bond_xdp_xmit_3ad_xor_slave_get()
5301 slaves = rcu_dereference(bond->usable_slaves); in bond_xdp_xmit_3ad_xor_slave_get()
5302 count = slaves ? READ_ONCE(slaves->count) : 0; in bond_xdp_xmit_3ad_xor_slave_get()
5303 if (unlikely(!count)) in bond_xdp_xmit_3ad_xor_slave_get()
5306 return slaves->arr[hash % count]; in bond_xdp_xmit_3ad_xor_slave_get()
5310 * usable slave array is formed in the control path. The xmit function
5318 struct slave *slave; in bond_3ad_xor_xmit() local
5320 slaves = rcu_dereference(bond->usable_slaves); in bond_3ad_xor_xmit()
5321 slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves); in bond_3ad_xor_xmit()
5322 if (likely(slave)) in bond_3ad_xor_xmit()
5323 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_3ad_xor_xmit()
5333 struct slave *slave = NULL; in bond_xmit_broadcast() local
5338 bond_for_each_slave_rcu(bond, slave, iter) { in bond_xmit_broadcast()
5341 if (!(bond_slave_is_up(slave) && slave->link == BOND_LINK_UP)) in bond_xmit_broadcast()
5344 if (bond_is_last_slave(bond, slave)) { in bond_xmit_broadcast()
5349 if (!skb2) { in bond_xmit_broadcast()
5351 bond_dev->name, __func__); in bond_xmit_broadcast()
5356 if (bond_dev_queue_xmit(bond, skb2, slave->dev) == NETDEV_TX_OK) in bond_xmit_broadcast()
5360 if (!skb_used) in bond_xmit_broadcast()
5363 if (xmit_suc) in bond_xmit_broadcast()
5370 /*------------------------- Device initialization ---------------------------*/
5372 /* Lookup the slave that corresponds to a qid */
5376 struct slave *slave = NULL; in bond_slave_override() local
5379 if (!skb_rx_queue_recorded(skb)) in bond_slave_override()
5382 /* Find out if any slaves have the same mapping as this skb. */ in bond_slave_override()
5383 bond_for_each_slave_rcu(bond, slave, iter) { in bond_slave_override()
5384 if (READ_ONCE(slave->queue_id) == skb_get_queue_mapping(skb)) { in bond_slave_override()
5385 if (bond_slave_is_up(slave) && in bond_slave_override()
5386 slave->link == BOND_LINK_UP) { in bond_slave_override()
5387 bond_dev_queue_xmit(bond, skb, slave->dev); in bond_slave_override()
5390 /* If the slave isn't UP, use default transmit policy. */ in bond_slave_override()
5410 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb_get_queue_mapping(skb); in bond_select_queue()
5412 if (unlikely(txq >= dev->real_num_tx_queues)) { in bond_select_queue()
5414 txq -= dev->real_num_tx_queues; in bond_select_queue()
5415 } while (txq >= dev->real_num_tx_queues); in bond_select_queue()
5426 struct slave *slave = NULL; in bond_xmit_get_slave() local
5430 slave = bond_xmit_roundrobin_slave_get(bond, skb); in bond_xmit_get_slave()
5433 slave = bond_xmit_activebackup_slave_get(bond); in bond_xmit_get_slave()
5437 if (all_slaves) in bond_xmit_get_slave()
5438 slaves = rcu_dereference(bond->all_slaves); in bond_xmit_get_slave()
5440 slaves = rcu_dereference(bond->usable_slaves); in bond_xmit_get_slave()
5441 slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves); in bond_xmit_get_slave()
5446 slave = bond_xmit_alb_slave_get(bond, skb); in bond_xmit_get_slave()
5449 slave = bond_xmit_tlb_slave_get(bond, skb); in bond_xmit_get_slave()
5457 if (slave) in bond_xmit_get_slave()
5458 return slave->dev; in bond_xmit_get_slave()
5464 switch (sk->sk_family) { in bond_sk_to_flow()
5465 #if IS_ENABLED(CONFIG_IPV6) in bond_sk_to_flow()
5467 if (ipv6_only_sock(sk) || in bond_sk_to_flow()
5468 ipv6_addr_type(&sk->sk_v6_daddr) != IPV6_ADDR_MAPPED) { in bond_sk_to_flow()
5469 flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; in bond_sk_to_flow()
5470 flow->addrs.v6addrs.src = inet6_sk(sk)->saddr; in bond_sk_to_flow()
5471 flow->addrs.v6addrs.dst = sk->sk_v6_daddr; in bond_sk_to_flow()
5477 flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; in bond_sk_to_flow()
5478 flow->addrs.v4addrs.src = inet_sk(sk)->inet_rcv_saddr; in bond_sk_to_flow()
5479 flow->addrs.v4addrs.dst = inet_sk(sk)->inet_daddr; in bond_sk_to_flow()
5483 flow->ports.src = inet_sk(sk)->inet_sport; in bond_sk_to_flow()
5484 flow->ports.dst = inet_sk(sk)->inet_dport; in bond_sk_to_flow()
5488 * bond_sk_hash_l34 - generate a hash value based on the socket's L3 and L4 fields
5512 struct slave *slave; in __bond_sk_get_lower_dev() local
5516 slaves = rcu_dereference(bond->usable_slaves); in __bond_sk_get_lower_dev()
5517 count = slaves ? READ_ONCE(slaves->count) : 0; in __bond_sk_get_lower_dev()
5518 if (unlikely(!count)) in __bond_sk_get_lower_dev()
5522 slave = slaves->arr[hash % count]; in __bond_sk_get_lower_dev()
5524 return slave->dev; in __bond_sk_get_lower_dev()
5534 if (bond_sk_check(bond)) in bond_sk_get_lower_dev()
5541 #if IS_ENABLED(CONFIG_TLS_DEVICE)
5545 struct net_device *tls_netdev = rcu_dereference(tls_get_ctx(skb->sk)->netdev); in bond_tls_device_xmit()
5547 /* tls_netdev might become NULL, even if tls_is_skb_tx_device_offloaded in bond_tls_device_xmit()
5548 * was true, if tls_device_down is running in parallel, but it's OK, in bond_tls_device_xmit()
5551 if (likely(bond_get_slave_by_dev(bond, tls_netdev))) in bond_tls_device_xmit()
5561 if (bond_should_override_tx_queue(bond) && in __bond_start_xmit()
5565 #if IS_ENABLED(CONFIG_TLS_DEVICE) in __bond_start_xmit()
5566 if (tls_is_skb_tx_device_offloaded(skb)) in __bond_start_xmit()
5597 /* If we risk deadlock from transmitting this in the in bond_start_xmit()
5600 if (unlikely(is_netpoll_tx_blocked(dev))) in bond_start_xmit()
5604 if (bond_has_slaves(bond)) in bond_start_xmit()
5617 struct slave *slave; in bond_xdp_get_xmit_slave() local
5623 slave = bond_xdp_xmit_roundrobin_slave_get(bond, xdp); in bond_xdp_get_xmit_slave()
5627 slave = bond_xmit_activebackup_slave_get(bond); in bond_xdp_get_xmit_slave()
5632 slave = bond_xdp_xmit_3ad_xor_slave_get(bond, xdp); in bond_xdp_get_xmit_slave()
5636 if (net_ratelimit()) in bond_xdp_get_xmit_slave()
5642 if (slave) in bond_xdp_get_xmit_slave()
5643 return slave->dev; in bond_xdp_get_xmit_slave()
5651 int nxmit, err = -ENXIO; in bond_xdp_xmit()
5664 if (!slave_dev) { in bond_xdp_xmit()
5665 err = -ENXIO; in bond_xdp_xmit()
5669 err = slave_dev->netdev_ops->ndo_xdp_xmit(slave_dev, 1, frames1, flags); in bond_xdp_xmit()
5670 if (err < 1) in bond_xdp_xmit()
5676 /* If error happened on the first frame then we can pass the error up, otherwise in bond_xdp_xmit()
5679 if (err < 0) in bond_xdp_xmit()
5690 struct slave *slave, *rollback_slave; in bond_xdp_set() local
5702 if (!bond_xdp_check(bond)) { in bond_xdp_set()
5705 return -EOPNOTSUPP; in bond_xdp_set()
5708 old_prog = bond->xdp_prog; in bond_xdp_set()
5709 bond->xdp_prog = prog; in bond_xdp_set()
5711 bond_for_each_slave(bond, slave, iter) { in bond_xdp_set()
5712 struct net_device *slave_dev = slave->dev; in bond_xdp_set()
5714 if (!slave_dev->netdev_ops->ndo_bpf || in bond_xdp_set()
5715 !slave_dev->netdev_ops->ndo_xdp_xmit) { in bond_xdp_set()
5717 "Slave device does not support XDP"); in bond_xdp_set()
5718 err = -EOPNOTSUPP; in bond_xdp_set()
5722 if (dev_xdp_prog_count(slave_dev) > 0) { in bond_xdp_set()
5724 "Slave has XDP program loaded, please unload before enslaving"); in bond_xdp_set()
5725 err = -EOPNOTSUPP; in bond_xdp_set()
5730 if (err < 0) { in bond_xdp_set()
5735 if (prog) in bond_xdp_set()
5739 if (prog) { in bond_xdp_set()
5741 } else if (old_prog) { in bond_xdp_set()
5750 bond->xdp_prog = old_prog; in bond_xdp_set()
5755 struct net_device *slave_dev = rollback_slave->dev; in bond_xdp_set()
5758 if (slave == rollback_slave) in bond_xdp_set()
5762 if (err_unwind < 0) in bond_xdp_set()
5765 else if (xdp.prog) in bond_xdp_set()
5773 switch (xdp->command) { in bond_xdp()
5775 return bond_xdp_set(dev, xdp->prog, xdp->extack); in bond_xdp()
5777 return -EINVAL; in bond_xdp()
5781 static u32 bond_mode_bcast_speed(struct slave *slave, u32 speed) in bond_mode_bcast_speed() argument
5783 if (speed == 0 || speed == SPEED_UNKNOWN) in bond_mode_bcast_speed()
5784 speed = slave->speed; in bond_mode_bcast_speed()
5786 speed = min(speed, slave->speed); in bond_mode_bcast_speed()
5794 struct ifreq *ifr = kernel_cfg->ifr; in bond_set_phc_index_flag()
5797 if (kernel_cfg->copied_to_user) { in bond_set_phc_index_flag()
5799 if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) in bond_set_phc_index_flag()
5800 return -EFAULT; in bond_set_phc_index_flag()
5803 if (copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg))) in bond_set_phc_index_flag()
5804 return -EFAULT; in bond_set_phc_index_flag()
5806 kernel_cfg->flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX; in bond_set_phc_index_flag()
5820 if (!real_dev) in bond_hwtstamp_get()
5821 return -EOPNOTSUPP; in bond_hwtstamp_get()
5824 if (err) in bond_hwtstamp_get()
5838 if (!(cfg->flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX)) in bond_hwtstamp_set()
5839 return -EOPNOTSUPP; in bond_hwtstamp_set()
5842 if (!real_dev) in bond_hwtstamp_set()
5843 return -EOPNOTSUPP; in bond_hwtstamp_set()
5846 if (err) in bond_hwtstamp_set()
5857 struct slave *slave; in bond_ethtool_get_link_ksettings() local
5860 cmd->base.duplex = DUPLEX_UNKNOWN; in bond_ethtool_get_link_ksettings()
5861 cmd->base.port = PORT_OTHER; in bond_ethtool_get_link_ksettings()
5868 bond_for_each_slave(bond, slave, iter) { in bond_ethtool_get_link_ksettings()
5869 if (bond_slave_can_tx(slave)) { in bond_ethtool_get_link_ksettings()
5870 bond_update_speed_duplex(slave); in bond_ethtool_get_link_ksettings()
5871 if (slave->speed != SPEED_UNKNOWN) { in bond_ethtool_get_link_ksettings()
5872 if (BOND_MODE(bond) == BOND_MODE_BROADCAST) in bond_ethtool_get_link_ksettings()
5873 speed = bond_mode_bcast_speed(slave, in bond_ethtool_get_link_ksettings()
5876 speed += slave->speed; in bond_ethtool_get_link_ksettings()
5878 if (cmd->base.duplex == DUPLEX_UNKNOWN && in bond_ethtool_get_link_ksettings()
5879 slave->duplex != DUPLEX_UNKNOWN) in bond_ethtool_get_link_ksettings()
5880 cmd->base.duplex = slave->duplex; in bond_ethtool_get_link_ksettings()
5883 cmd->base.speed = speed ? : SPEED_UNKNOWN; in bond_ethtool_get_link_ksettings()
5891 strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); in bond_ethtool_get_drvinfo()
5892 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d", in bond_ethtool_get_drvinfo()
5904 struct slave *slave; in bond_ethtool_get_ts_info() local
5912 if (real_dev) { in bond_ethtool_get_ts_info()
5915 /* Check if all slaves support software tx timestamping */ in bond_ethtool_get_ts_info()
5917 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ethtool_get_ts_info()
5918 ret = ethtool_get_ts_info_by_layer(slave->dev, &ts_info); in bond_ethtool_get_ts_info()
5919 if (!ret && (ts_info.so_timestamping & SOF_TIMESTAMPING_TX_SOFTWARE)) { in bond_ethtool_get_ts_info()
5930 if (sw_tx_support) in bond_ethtool_get_ts_info()
5931 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE; in bond_ethtool_get_ts_info()
5988 if (bond->wq) in bond_destructor()
5989 destroy_workqueue(bond->wq); in bond_destructor()
5991 free_percpu(bond->rr_tx_counter); in bond_destructor()
5998 spin_lock_init(&bond->mode_lock); in bond_setup()
5999 bond->params = bonding_defaults; in bond_setup()
6002 bond->dev = bond_dev; in bond_setup()
6006 bond_dev->max_mtu = ETH_MAX_MTU; in bond_setup()
6007 bond_dev->netdev_ops = &bond_netdev_ops; in bond_setup()
6008 bond_dev->ethtool_ops = &bond_ethtool_ops; in bond_setup()
6010 bond_dev->needs_free_netdev = true; in bond_setup()
6011 bond_dev->priv_destructor = bond_destructor; in bond_setup()
6016 bond_dev->flags |= IFF_MASTER; in bond_setup()
6017 bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT | IFF_NO_QUEUE; in bond_setup()
6018 bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); in bond_setup()
6021 /* set up xfrm device ops (only supported in active-backup right now) */ in bond_setup()
6022 bond_dev->xfrmdev_ops = &bond_xfrmdev_ops; in bond_setup()
6023 INIT_LIST_HEAD(&bond->ipsec_list); in bond_setup()
6024 mutex_init(&bond->ipsec_lock); in bond_setup()
6028 bond_dev->lltx = true; in bond_setup()
6031 bond_dev->netns_local = true; in bond_setup()
6040 bond_dev->hw_features = BOND_VLAN_FEATURES | in bond_setup()
6046 bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; in bond_setup()
6047 bond_dev->features |= bond_dev->hw_features; in bond_setup()
6048 bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; in bond_setup()
6049 bond_dev->features |= NETIF_F_GSO_PARTIAL; in bond_setup()
6051 bond_dev->hw_features |= BOND_XFRM_FEATURES; in bond_setup()
6052 /* Only enable XFRM features if this is an active-backup config */ in bond_setup()
6053 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) in bond_setup()
6054 bond_dev->features |= BOND_XFRM_FEATURES; in bond_setup()
6065 struct slave *slave; in bond_uninit() local
6070 bond_for_each_slave(bond, slave, iter) in bond_uninit()
6071 __bond_release_one(bond_dev, slave->dev, true, true); in bond_uninit()
6075 mutex_destroy(&bond->ipsec_lock); in bond_uninit()
6080 list_del_rcu(&bond->bond_list); in bond_uninit()
6085 /*------------------------- Module initialization ---------------------------*/
6103 if (mode) { in bond_check_params()
6106 if (!valptr) { in bond_check_params()
6108 return -EINVAL; in bond_check_params()
6110 bond_mode = valptr->value; in bond_check_params()
6113 if (xmit_hash_policy) { in bond_check_params()
6114 if (bond_mode == BOND_MODE_ROUNDROBIN || in bond_check_params()
6123 if (!valptr) { in bond_check_params()
6126 return -EINVAL; in bond_check_params()
6128 xmit_hashtype = valptr->value; in bond_check_params()
6132 if (lacp_rate) { in bond_check_params()
6133 if (bond_mode != BOND_MODE_8023AD) { in bond_check_params()
6140 if (!valptr) { in bond_check_params()
6143 return -EINVAL; in bond_check_params()
6145 lacp_fast = valptr->value; in bond_check_params()
6149 if (ad_select) { in bond_check_params()
6153 if (!valptr) { in bond_check_params()
6155 return -EINVAL; in bond_check_params()
6157 params->ad_select = valptr->value; in bond_check_params()
6158 if (bond_mode != BOND_MODE_8023AD) in bond_check_params()
6161 params->ad_select = BOND_AD_STABLE; in bond_check_params()
6164 if (max_bonds < 0) { in bond_check_params()
6165 …pr_warn("Warning: max_bonds (%d) not in range %d-%d, so it was reset to BOND_DEFAULT_MAX_BONDS (%d… in bond_check_params()
6170 if (miimon < 0) { in bond_check_params()
6171 pr_warn("Warning: miimon module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6176 if (updelay < 0) { in bond_check_params()
6177 pr_warn("Warning: updelay module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6182 if (downdelay < 0) { in bond_check_params()
6183 pr_warn("Warning: downdelay module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6188 if ((use_carrier != 0) && (use_carrier != 1)) { in bond_check_params()
6194 if (num_peer_notif < 0 || num_peer_notif > 255) { in bond_check_params()
6195 pr_warn("Warning: num_grat_arp/num_unsol_na (%d) not in range 0-255 so it was reset to 1\n", in bond_check_params()
6201 if (!bond_mode_uses_arp(bond_mode)) { in bond_check_params()
6202 if (!miimon) { in bond_check_params()
6209 if (tx_queues < 1 || tx_queues > 255) { in bond_check_params()
6215 if ((all_slaves_active != 0) && (all_slaves_active != 1)) { in bond_check_params()
6221 if (resend_igmp < 0 || resend_igmp > 255) { in bond_check_params()
6228 if (!bond_opt_parse(bond_opt_get(BOND_OPT_PACKETS_PER_SLAVE), &newval)) { in bond_check_params()
6234 if (bond_mode == BOND_MODE_ALB) { in bond_check_params()
6235 …pr_notice("In ALB mode you might experience client disconnections upon reconnection of a link if t… in bond_check_params()
6239 if (!miimon) { in bond_check_params()
6240 if (updelay || downdelay) { in bond_check_params()
6249 if (arp_interval) { in bond_check_params()
6255 if ((updelay % miimon) != 0) { in bond_check_params()
6262 if ((downdelay % miimon) != 0) { in bond_check_params()
6271 if (arp_interval < 0) { in bond_check_params()
6272 pr_warn("Warning: arp_interval module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6282 if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) || in bond_check_params()
6288 if (bond_get_targets_ip(arp_target, ip) == -1) in bond_check_params()
6296 if (arp_interval && !arp_ip_count) { in bond_check_params()
6297 /* don't allow arping if no arp_ip_target given... */ in bond_check_params()
6303 if (arp_validate) { in bond_check_params()
6304 if (!arp_interval) { in bond_check_params()
6306 return -EINVAL; in bond_check_params()
6312 if (!valptr) { in bond_check_params()
6315 return -EINVAL; in bond_check_params()
6317 arp_validate_value = valptr->value; in bond_check_params()
6322 if (arp_all_targets) { in bond_check_params()
6326 if (!valptr) { in bond_check_params()
6331 arp_all_targets_value = valptr->value; in bond_check_params()
6335 if (miimon) { in bond_check_params()
6337 } else if (arp_interval) { in bond_check_params()
6341 arp_interval, valptr->string, arp_ip_count); in bond_check_params()
6348 } else if (max_bonds) { in bond_check_params()
6355 if (primary && !bond_mode_uses_primary(bond_mode)) { in bond_check_params()
6364 if (primary && primary_reselect) { in bond_check_params()
6368 if (!valptr) { in bond_check_params()
6371 return -EINVAL; in bond_check_params()
6373 primary_reselect_value = valptr->value; in bond_check_params()
6378 if (fail_over_mac) { in bond_check_params()
6382 if (!valptr) { in bond_check_params()
6385 return -EINVAL; in bond_check_params()
6387 fail_over_mac_value = valptr->value; in bond_check_params()
6388 if (bond_mode != BOND_MODE_ACTIVEBACKUP) in bond_check_params()
6389 pr_warn("Warning: fail_over_mac only affects active-backup mode\n"); in bond_check_params()
6398 if (!valptr) { in bond_check_params()
6400 return -EINVAL; in bond_check_params()
6402 ad_actor_sys_prio = valptr->value; in bond_check_params()
6406 if (!valptr) { in bond_check_params()
6408 return -EINVAL; in bond_check_params()
6410 ad_user_port_key = valptr->value; in bond_check_params()
6414 if (!valptr) { in bond_check_params()
6416 return -EINVAL; in bond_check_params()
6418 tlb_dynamic_lb = valptr->value; in bond_check_params()
6420 if (lp_interval == 0) { in bond_check_params()
6427 params->mode = bond_mode; in bond_check_params()
6428 params->xmit_policy = xmit_hashtype; in bond_check_params()
6429 params->miimon = miimon; in bond_check_params()
6430 params->num_peer_notif = num_peer_notif; in bond_check_params()
6431 params->arp_interval = arp_interval; in bond_check_params()
6432 params->arp_validate = arp_validate_value; in bond_check_params()
6433 params->arp_all_targets = arp_all_targets_value; in bond_check_params()
6434 params->missed_max = 2; in bond_check_params()
6435 params->updelay = updelay; in bond_check_params()
6436 params->downdelay = downdelay; in bond_check_params()
6437 params->peer_notif_delay = 0; in bond_check_params()
6438 params->use_carrier = use_carrier; in bond_check_params()
6439 params->lacp_active = 1; in bond_check_params()
6440 params->lacp_fast = lacp_fast; in bond_check_params()
6441 params->primary[0] = 0; in bond_check_params()
6442 params->primary_reselect = primary_reselect_value; in bond_check_params()
6443 params->fail_over_mac = fail_over_mac_value; in bond_check_params()
6444 params->tx_queues = tx_queues; in bond_check_params()
6445 params->all_slaves_active = all_slaves_active; in bond_check_params()
6446 params->resend_igmp = resend_igmp; in bond_check_params()
6447 params->min_links = min_links; in bond_check_params()
6448 params->lp_interval = lp_interval; in bond_check_params()
6449 params->packets_per_slave = packets_per_slave; in bond_check_params()
6450 params->tlb_dynamic_lb = tlb_dynamic_lb; in bond_check_params()
6451 params->ad_actor_sys_prio = ad_actor_sys_prio; in bond_check_params()
6452 eth_zero_addr(params->ad_actor_system); in bond_check_params()
6453 params->ad_user_port_key = ad_user_port_key; in bond_check_params()
6454 params->coupled_control = 1; in bond_check_params()
6455 if (packets_per_slave > 0) { in bond_check_params()
6456 params->reciprocal_packets_per_slave = in bond_check_params()
6459 /* reciprocal_packets_per_slave is unused if in bond_check_params()
6462 params->reciprocal_packets_per_slave = in bond_check_params()
6466 if (primary) in bond_check_params()
6467 strscpy_pad(params->primary, primary, sizeof(params->primary)); in bond_check_params()
6469 memcpy(params->arp_targets, arp_target, sizeof(arp_target)); in bond_check_params()
6470 #if IS_ENABLED(CONFIG_IPV6) in bond_check_params()
6471 memset(params->ns_targets, 0, sizeof(struct in6_addr) * BOND_MAX_NS_TARGETS); in bond_check_params()
6485 bond->wq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, in bond_init()
6486 bond_dev->name); in bond_init()
6487 if (!bond->wq) in bond_init()
6488 return -ENOMEM; in bond_init()
6490 bond->notifier_ctx = false; in bond_init()
6492 spin_lock_init(&bond->stats_lock); in bond_init()
6495 list_add_tail_rcu(&bond->bond_list, &bn->dev_list); in bond_init()
6502 if (is_zero_ether_addr(bond_dev->dev_addr) && in bond_init()
6503 bond_dev->addr_assign_type == NET_ADDR_PERM) in bond_init()
6515 * If name is NULL, obtain a suitable "bond%d" name for us.
6523 int res = -ENOMEM; in bond_create()
6530 if (!bond_dev) in bond_create()
6535 bond_dev->rtnl_link_ops = &bond_link_ops; in bond_create()
6538 if (res < 0) { in bond_create()
6556 bn->net = net; in bond_net_init()
6557 INIT_LIST_HEAD(&bn->dev_list); in bond_net_init()
6587 list_for_each_entry_safe(bond, tmp_bond, &bn->dev_list, bond_list) in bond_net_exit_batch_rtnl()
6588 unregister_netdevice_queue(bond->dev, dev_kill_list); in bond_net_exit_batch_rtnl()
6622 if (res) in bonding_init()
6628 if (res) in bonding_init()
6632 if (res) in bonding_init()
6637 if (res) in bonding_init()