Lines Matching +full:slave +full:- +full:dev
20 * the first slave bonded to the channel. All slaves will then use
27 * will attach eth0 to bond0 as a slave. eth0 hw mac address will either
89 /*---------------------------- Module parameters ----------------------------*/
139 MODULE_PARM_DESC(mode, "Mode of operation; 0 for balance-rr, "
140 "1 for active-backup, 2 for balance-xor, "
141 "3 for broadcast, 4 for 802.3ad, 5 for balance-tlb, "
142 "6 for balance-alb");
146 MODULE_PARM_DESC(primary_reselect, "Reselect primary slave "
151 "2 for only on active slave "
164 MODULE_PARM_DESC(xmit_hash_policy, "balance-alb, balance-tlb, balance-xor, 802.3ad hashing method; "
179 MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to "
190 MODULE_PARM_DESC(packets_per_slave, "Packets to send per slave in balance-rr "
191 "mode; 0 for a random slave, 1 packet per "
192 "slave (default), >1 packets per slave.");
198 /*----------------------------- Global variables ----------------------------*/
251 /*-------------------------- Forward declarations ---------------------------*/
262 /*---------------------------- General routines -----------------------------*/
267 [BOND_MODE_ROUNDROBIN] = "load balancing (round-robin)", in bond_mode_name()
268 [BOND_MODE_ACTIVEBACKUP] = "fault-tolerance (active-backup)", in bond_mode_name()
270 [BOND_MODE_BROADCAST] = "fault-tolerance (broadcast)", in bond_mode_name()
283 * bond_dev_queue_xmit - Prepare skb for xmit.
287 * @slave_dev: slave that is supposed to xmit this skbuff
292 skb->dev = slave_dev; in bond_dev_queue_xmit()
294 BUILD_BUG_ON(sizeof(skb->queue_mapping) != in bond_dev_queue_xmit()
295 sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping)); in bond_dev_queue_xmit()
296 skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping); in bond_dev_queue_xmit()
298 if (unlikely(netpoll_tx_running(bond->dev))) in bond_dev_queue_xmit()
304 /*---------------------------------- VLAN -----------------------------------*/
307 * We don't protect the slave list iteration with a lock because:
323 * bond_vlan_rx_add_vid - Propagates adding an id to slaves
332 struct slave *slave, *rollback_slave; in bond_vlan_rx_add_vid() local
336 bond_for_each_slave(bond, slave, iter) { in bond_vlan_rx_add_vid()
337 res = vlan_vid_add(slave->dev, proto, vid); in bond_vlan_rx_add_vid()
345 /* unwind to the slave that failed */ in bond_vlan_rx_add_vid()
347 if (rollback_slave == slave) in bond_vlan_rx_add_vid()
350 vlan_vid_del(rollback_slave->dev, proto, vid); in bond_vlan_rx_add_vid()
357 * bond_vlan_rx_kill_vid - Propagates deleting an id to slaves
367 struct slave *slave; in bond_vlan_rx_kill_vid() local
369 bond_for_each_slave(bond, slave, iter) in bond_vlan_rx_kill_vid()
370 vlan_vid_del(slave->dev, proto, vid); in bond_vlan_rx_kill_vid()
378 /*---------------------------------- XFRM -----------------------------------*/
382 * bond_ipsec_add_sa - program device with a security association
387 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_add_sa()
390 struct slave *slave; in bond_ipsec_add_sa() local
394 return -EINVAL; in bond_ipsec_add_sa()
398 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_add_sa()
399 if (!slave) { in bond_ipsec_add_sa()
401 return -ENODEV; in bond_ipsec_add_sa()
404 if (!slave->dev->xfrmdev_ops || in bond_ipsec_add_sa()
405 !slave->dev->xfrmdev_ops->xdo_dev_state_add || in bond_ipsec_add_sa()
406 netif_is_bond_master(slave->dev)) { in bond_ipsec_add_sa()
407 slave_warn(bond_dev, slave->dev, "Slave does not support ipsec offload\n"); in bond_ipsec_add_sa()
409 return -EINVAL; in bond_ipsec_add_sa()
415 return -ENOMEM; in bond_ipsec_add_sa()
417 xs->xso.real_dev = slave->dev; in bond_ipsec_add_sa()
419 err = slave->dev->xfrmdev_ops->xdo_dev_state_add(xs); in bond_ipsec_add_sa()
421 ipsec->xs = xs; in bond_ipsec_add_sa()
422 INIT_LIST_HEAD(&ipsec->list); in bond_ipsec_add_sa()
423 spin_lock_bh(&bond->ipsec_lock); in bond_ipsec_add_sa()
424 list_add(&ipsec->list, &bond->ipsec_list); in bond_ipsec_add_sa()
425 spin_unlock_bh(&bond->ipsec_lock); in bond_ipsec_add_sa()
435 struct net_device *bond_dev = bond->dev; in bond_ipsec_add_sa_all()
437 struct slave *slave; in bond_ipsec_add_sa_all() local
440 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_add_sa_all()
441 if (!slave) in bond_ipsec_add_sa_all()
444 if (!slave->dev->xfrmdev_ops || in bond_ipsec_add_sa_all()
445 !slave->dev->xfrmdev_ops->xdo_dev_state_add || in bond_ipsec_add_sa_all()
446 netif_is_bond_master(slave->dev)) { in bond_ipsec_add_sa_all()
447 spin_lock_bh(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
448 if (!list_empty(&bond->ipsec_list)) in bond_ipsec_add_sa_all()
449 slave_warn(bond_dev, slave->dev, in bond_ipsec_add_sa_all()
450 "%s: no slave xdo_dev_state_add\n", in bond_ipsec_add_sa_all()
452 spin_unlock_bh(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
456 spin_lock_bh(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
457 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_add_sa_all()
458 ipsec->xs->xso.real_dev = slave->dev; in bond_ipsec_add_sa_all()
459 if (slave->dev->xfrmdev_ops->xdo_dev_state_add(ipsec->xs)) { in bond_ipsec_add_sa_all()
460 slave_warn(bond_dev, slave->dev, "%s: failed to add SA\n", __func__); in bond_ipsec_add_sa_all()
461 ipsec->xs->xso.real_dev = NULL; in bond_ipsec_add_sa_all()
464 spin_unlock_bh(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
470 * bond_ipsec_del_sa - clear out this specific SA
475 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_del_sa()
478 struct slave *slave; in bond_ipsec_del_sa() local
485 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_del_sa()
487 if (!slave) in bond_ipsec_del_sa()
490 if (!xs->xso.real_dev) in bond_ipsec_del_sa()
493 WARN_ON(xs->xso.real_dev != slave->dev); in bond_ipsec_del_sa()
495 if (!slave->dev->xfrmdev_ops || in bond_ipsec_del_sa()
496 !slave->dev->xfrmdev_ops->xdo_dev_state_delete || in bond_ipsec_del_sa()
497 netif_is_bond_master(slave->dev)) { in bond_ipsec_del_sa()
498 slave_warn(bond_dev, slave->dev, "%s: no slave xdo_dev_state_delete\n", __func__); in bond_ipsec_del_sa()
502 slave->dev->xfrmdev_ops->xdo_dev_state_delete(xs); in bond_ipsec_del_sa()
504 spin_lock_bh(&bond->ipsec_lock); in bond_ipsec_del_sa()
505 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_del_sa()
506 if (ipsec->xs == xs) { in bond_ipsec_del_sa()
507 list_del(&ipsec->list); in bond_ipsec_del_sa()
512 spin_unlock_bh(&bond->ipsec_lock); in bond_ipsec_del_sa()
518 struct net_device *bond_dev = bond->dev; in bond_ipsec_del_sa_all()
520 struct slave *slave; in bond_ipsec_del_sa_all() local
523 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_del_sa_all()
524 if (!slave) { in bond_ipsec_del_sa_all()
529 spin_lock_bh(&bond->ipsec_lock); in bond_ipsec_del_sa_all()
530 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_del_sa_all()
531 if (!ipsec->xs->xso.real_dev) in bond_ipsec_del_sa_all()
534 if (!slave->dev->xfrmdev_ops || in bond_ipsec_del_sa_all()
535 !slave->dev->xfrmdev_ops->xdo_dev_state_delete || in bond_ipsec_del_sa_all()
536 netif_is_bond_master(slave->dev)) { in bond_ipsec_del_sa_all()
537 slave_warn(bond_dev, slave->dev, in bond_ipsec_del_sa_all()
538 "%s: no slave xdo_dev_state_delete\n", in bond_ipsec_del_sa_all()
541 slave->dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs); in bond_ipsec_del_sa_all()
544 spin_unlock_bh(&bond->ipsec_lock); in bond_ipsec_del_sa_all()
549 * bond_ipsec_offload_ok - can this packet use the xfrm hw offload
555 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_offload_ok()
557 struct slave *curr_active; in bond_ipsec_offload_ok()
563 curr_active = rcu_dereference(bond->curr_active_slave); in bond_ipsec_offload_ok()
566 real_dev = curr_active->dev; in bond_ipsec_offload_ok()
573 if (!xs->xso.real_dev) { in bond_ipsec_offload_ok()
578 if (!real_dev->xfrmdev_ops || in bond_ipsec_offload_ok()
579 !real_dev->xfrmdev_ops->xdo_dev_offload_ok || in bond_ipsec_offload_ok()
585 err = real_dev->xfrmdev_ops->xdo_dev_offload_ok(skb, xs); in bond_ipsec_offload_ok()
598 /*------------------------------- Link status -------------------------------*/
609 struct slave *slave; in bond_set_carrier() local
617 bond_for_each_slave(bond, slave, iter) { in bond_set_carrier()
618 if (slave->link == BOND_LINK_UP) { in bond_set_carrier()
619 if (!netif_carrier_ok(bond->dev)) { in bond_set_carrier()
620 netif_carrier_on(bond->dev); in bond_set_carrier()
628 if (netif_carrier_ok(bond->dev)) { in bond_set_carrier()
629 netif_carrier_off(bond->dev); in bond_set_carrier()
635 /* Get link speed and duplex from the slave's base driver
637 * values are invalid, set speed and duplex to -1,
641 static int bond_update_speed_duplex(struct slave *slave) in bond_update_speed_duplex() argument
643 struct net_device *slave_dev = slave->dev; in bond_update_speed_duplex()
647 slave->speed = SPEED_UNKNOWN; in bond_update_speed_duplex()
648 slave->duplex = DUPLEX_UNKNOWN; in bond_update_speed_duplex()
653 if (ecmd.base.speed == 0 || ecmd.base.speed == ((__u32)-1)) in bond_update_speed_duplex()
663 slave->speed = ecmd.base.speed; in bond_update_speed_duplex()
664 slave->duplex = ecmd.base.duplex; in bond_update_speed_duplex()
685 /* if <dev> supports MII link status reporting, check its link status.
694 * If reporting is non-zero, instead of faking link up, return -1 if
703 const struct net_device_ops *slave_ops = slave_dev->netdev_ops; in bond_check_dev_link()
711 if (bond->params.use_carrier) in bond_check_dev_link()
715 if (slave_dev->ethtool_ops->get_link) in bond_check_dev_link()
716 return slave_dev->ethtool_ops->get_link(slave_dev) ? in bond_check_dev_link()
720 ioctl = slave_ops->ndo_do_ioctl; in bond_check_dev_link()
735 strncpy(ifr.ifr_name, slave_dev->name, IFNAMSIZ); in bond_check_dev_link()
738 mii->reg_num = MII_BMSR; in bond_check_dev_link()
740 return mii->val_out & BMSR_LSTATUS; in bond_check_dev_link()
744 /* If reporting, report that either there's no dev->do_ioctl, in bond_check_dev_link()
749 return reporting ? -1 : BMSR_LSTATUS; in bond_check_dev_link()
752 /*----------------------------- Multicast list ------------------------------*/
761 struct slave *curr_active = rtnl_dereference(bond->curr_active_slave); in bond_set_promiscuity()
764 err = dev_set_promiscuity(curr_active->dev, inc); in bond_set_promiscuity()
766 struct slave *slave; in bond_set_promiscuity() local
768 bond_for_each_slave(bond, slave, iter) { in bond_set_promiscuity()
769 err = dev_set_promiscuity(slave->dev, inc); in bond_set_promiscuity()
784 struct slave *curr_active = rtnl_dereference(bond->curr_active_slave); in bond_set_allmulti()
787 err = dev_set_allmulti(curr_active->dev, inc); in bond_set_allmulti()
789 struct slave *slave; in bond_set_allmulti() local
791 bond_for_each_slave(bond, slave, iter) { in bond_set_allmulti()
792 err = dev_set_allmulti(slave->dev, inc); in bond_set_allmulti()
802 * slave.
810 queue_delayed_work(bond->wq, &bond->mcast_work, 1); in bond_resend_igmp_join_requests_delayed()
813 call_netdevice_notifiers(NETDEV_RESEND_IGMP, bond->dev); in bond_resend_igmp_join_requests_delayed()
815 if (bond->igmp_retrans > 1) { in bond_resend_igmp_join_requests_delayed()
816 bond->igmp_retrans--; in bond_resend_igmp_join_requests_delayed()
817 queue_delayed_work(bond->wq, &bond->mcast_work, HZ/5); in bond_resend_igmp_join_requests_delayed()
822 /* Flush bond's hardware addresses from slave */
835 /*--------------------------- Active slave change ---------------------------*/
842 static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active, in bond_hw_addr_swap()
843 struct slave *old_active) in bond_hw_addr_swap()
846 if (bond->dev->flags & IFF_PROMISC) in bond_hw_addr_swap()
847 dev_set_promiscuity(old_active->dev, -1); in bond_hw_addr_swap()
849 if (bond->dev->flags & IFF_ALLMULTI) in bond_hw_addr_swap()
850 dev_set_allmulti(old_active->dev, -1); in bond_hw_addr_swap()
852 if (bond->dev->flags & IFF_UP) in bond_hw_addr_swap()
853 bond_hw_addr_flush(bond->dev, old_active->dev); in bond_hw_addr_swap()
858 if (bond->dev->flags & IFF_PROMISC) in bond_hw_addr_swap()
859 dev_set_promiscuity(new_active->dev, 1); in bond_hw_addr_swap()
861 if (bond->dev->flags & IFF_ALLMULTI) in bond_hw_addr_swap()
862 dev_set_allmulti(new_active->dev, 1); in bond_hw_addr_swap()
864 if (bond->dev->flags & IFF_UP) { in bond_hw_addr_swap()
865 netif_addr_lock_bh(bond->dev); in bond_hw_addr_swap()
866 dev_uc_sync(new_active->dev, bond->dev); in bond_hw_addr_swap()
867 dev_mc_sync(new_active->dev, bond->dev); in bond_hw_addr_swap()
868 netif_addr_unlock_bh(bond->dev); in bond_hw_addr_swap()
874 * bond_set_dev_addr - clone slave's address to bond
876 * @slave_dev: slave net device
885 slave_dbg(bond_dev, slave_dev, "bond_dev=%p slave_dev=%p slave_dev->addr_len=%d\n", in bond_set_dev_addr()
886 bond_dev, slave_dev, slave_dev->addr_len); in bond_set_dev_addr()
887 err = dev_pre_changeaddr_notify(bond_dev, slave_dev->dev_addr, NULL); in bond_set_dev_addr()
891 memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len); in bond_set_dev_addr()
892 bond_dev->addr_assign_type = NET_ADDR_STOLEN; in bond_set_dev_addr()
897 static struct slave *bond_get_old_active(struct bonding *bond, in bond_get_old_active()
898 struct slave *new_active) in bond_get_old_active()
900 struct slave *slave; in bond_get_old_active() local
903 bond_for_each_slave(bond, slave, iter) { in bond_get_old_active()
904 if (slave == new_active) in bond_get_old_active()
907 if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr)) in bond_get_old_active()
908 return slave; in bond_get_old_active()
921 struct slave *new_active, in bond_do_fail_over_mac()
922 struct slave *old_active) in bond_do_fail_over_mac()
928 switch (bond->params.fail_over_mac) { in bond_do_fail_over_mac()
931 rv = bond_set_dev_addr(bond->dev, new_active->dev); in bond_do_fail_over_mac()
933 slave_err(bond->dev, new_active->dev, "Error %d setting bond MAC from slave\n", in bond_do_fail_over_mac()
934 -rv); in bond_do_fail_over_mac()
939 * if just old_active, do nothing (going to no active slave) in bond_do_fail_over_mac()
949 bond_hw_addr_copy(tmp_mac, new_active->dev->dev_addr, in bond_do_fail_over_mac()
950 new_active->dev->addr_len); in bond_do_fail_over_mac()
952 old_active->dev->dev_addr, in bond_do_fail_over_mac()
953 old_active->dev->addr_len); in bond_do_fail_over_mac()
954 ss.ss_family = new_active->dev->type; in bond_do_fail_over_mac()
956 bond_hw_addr_copy(ss.__data, bond->dev->dev_addr, in bond_do_fail_over_mac()
957 bond->dev->addr_len); in bond_do_fail_over_mac()
958 ss.ss_family = bond->dev->type; in bond_do_fail_over_mac()
961 rv = dev_set_mac_address(new_active->dev, in bond_do_fail_over_mac()
964 slave_err(bond->dev, new_active->dev, "Error %d setting MAC of new active slave\n", in bond_do_fail_over_mac()
965 -rv); in bond_do_fail_over_mac()
973 new_active->dev->addr_len); in bond_do_fail_over_mac()
974 ss.ss_family = old_active->dev->type; in bond_do_fail_over_mac()
976 rv = dev_set_mac_address(old_active->dev, in bond_do_fail_over_mac()
979 slave_err(bond->dev, old_active->dev, "Error %d setting MAC of old active slave\n", in bond_do_fail_over_mac()
980 -rv); in bond_do_fail_over_mac()
984 netdev_err(bond->dev, "bond_do_fail_over_mac impossible: bad policy %d\n", in bond_do_fail_over_mac()
985 bond->params.fail_over_mac); in bond_do_fail_over_mac()
991 static struct slave *bond_choose_primary_or_current(struct bonding *bond) in bond_choose_primary_or_current()
993 struct slave *prim = rtnl_dereference(bond->primary_slave); in bond_choose_primary_or_current()
994 struct slave *curr = rtnl_dereference(bond->curr_active_slave); in bond_choose_primary_or_current()
996 if (!prim || prim->link != BOND_LINK_UP) { in bond_choose_primary_or_current()
997 if (!curr || curr->link != BOND_LINK_UP) in bond_choose_primary_or_current()
1002 if (bond->force_primary) { in bond_choose_primary_or_current()
1003 bond->force_primary = false; in bond_choose_primary_or_current()
1007 if (!curr || curr->link != BOND_LINK_UP) in bond_choose_primary_or_current()
1011 switch (bond->params.primary_reselect) { in bond_choose_primary_or_current()
1015 if (prim->speed < curr->speed) in bond_choose_primary_or_current()
1017 if (prim->speed == curr->speed && prim->duplex <= curr->duplex) in bond_choose_primary_or_current()
1023 netdev_err(bond->dev, "impossible primary_reselect %d\n", in bond_choose_primary_or_current()
1024 bond->params.primary_reselect); in bond_choose_primary_or_current()
1030 * bond_find_best_slave - select the best available slave to be the active one
1033 static struct slave *bond_find_best_slave(struct bonding *bond) in bond_find_best_slave()
1035 struct slave *slave, *bestslave = NULL; in bond_find_best_slave() local
1037 int mintime = bond->params.updelay; in bond_find_best_slave()
1039 slave = bond_choose_primary_or_current(bond); in bond_find_best_slave()
1040 if (slave) in bond_find_best_slave()
1041 return slave; in bond_find_best_slave()
1043 bond_for_each_slave(bond, slave, iter) { in bond_find_best_slave()
1044 if (slave->link == BOND_LINK_UP) in bond_find_best_slave()
1045 return slave; in bond_find_best_slave()
1046 if (slave->link == BOND_LINK_BACK && bond_slave_is_up(slave) && in bond_find_best_slave()
1047 slave->delay < mintime) { in bond_find_best_slave()
1048 mintime = slave->delay; in bond_find_best_slave()
1049 bestslave = slave; in bond_find_best_slave()
1058 struct slave *slave; in bond_should_notify_peers() local
1061 slave = rcu_dereference(bond->curr_active_slave); in bond_should_notify_peers()
1064 if (!slave || !bond->send_peer_notif || in bond_should_notify_peers()
1065 bond->send_peer_notif % in bond_should_notify_peers()
1066 max(1, bond->params.peer_notif_delay) != 0 || in bond_should_notify_peers()
1067 !netif_carrier_ok(bond->dev) || in bond_should_notify_peers()
1068 test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state)) in bond_should_notify_peers()
1071 netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n", in bond_should_notify_peers()
1072 slave ? slave->dev->name : "NULL"); in bond_should_notify_peers()
1078 * change_active_interface - change the active slave into the specified one
1080 * @new_active: the new slave to make the active one
1082 * Set the new slave to the bond's settings and unset them on the old
1084 * Setting include flags, mc-list, promiscuity, allmulti, etc.
1087 * because it is apparently the best available slave we have, even though its
1092 void bond_change_active_slave(struct bonding *bond, struct slave *new_active) in bond_change_active_slave()
1094 struct slave *old_active; in bond_change_active_slave()
1098 old_active = rtnl_dereference(bond->curr_active_slave); in bond_change_active_slave()
1108 new_active->last_link_up = jiffies; in bond_change_active_slave()
1110 if (new_active->link == BOND_LINK_BACK) { in bond_change_active_slave()
1112 slave_info(bond->dev, new_active->dev, "making interface the new active one %d ms earlier\n", in bond_change_active_slave()
1113 (bond->params.updelay - new_active->delay) * bond->params.miimon); in bond_change_active_slave()
1116 new_active->delay = 0; in bond_change_active_slave()
1127 slave_info(bond->dev, new_active->dev, "making interface the new active one\n"); in bond_change_active_slave()
1144 rcu_assign_pointer(bond->curr_active_slave, new_active); in bond_change_active_slave()
1158 if (bond->params.fail_over_mac) in bond_change_active_slave()
1162 if (netif_running(bond->dev)) { in bond_change_active_slave()
1163 bond->send_peer_notif = in bond_change_active_slave()
1164 bond->params.num_peer_notif * in bond_change_active_slave()
1165 max(1, bond->params.peer_notif_delay); in bond_change_active_slave()
1170 call_netdevice_notifiers(NETDEV_BONDING_FAILOVER, bond->dev); in bond_change_active_slave()
1172 bond->send_peer_notif--; in bond_change_active_slave()
1174 bond->dev); in bond_change_active_slave()
1183 /* resend IGMP joins since active slave has changed or in bond_change_active_slave()
1188 if (netif_running(bond->dev) && (bond->params.resend_igmp > 0) && in bond_change_active_slave()
1191 bond->igmp_retrans = bond->params.resend_igmp; in bond_change_active_slave()
1192 queue_delayed_work(bond->wq, &bond->mcast_work, 1); in bond_change_active_slave()
1197 * bond_select_active_slave - select a new active slave, if needed
1201 * - The old curr_active_slave has been released or lost its link.
1202 * - The primary_slave has got its link back.
1203 * - A slave has got its link back and there's no old curr_active_slave.
1209 struct slave *best_slave; in bond_select_active_slave()
1215 if (best_slave != rtnl_dereference(bond->curr_active_slave)) { in bond_select_active_slave()
1221 if (netif_carrier_ok(bond->dev)) in bond_select_active_slave()
1222 netdev_info(bond->dev, "active interface up!\n"); in bond_select_active_slave()
1224 netdev_info(bond->dev, "now running without any active interface!\n"); in bond_select_active_slave()
1229 static inline int slave_enable_netpoll(struct slave *slave) in slave_enable_netpoll() argument
1235 err = -ENOMEM; in slave_enable_netpoll()
1239 err = __netpoll_setup(np, slave->dev); in slave_enable_netpoll()
1244 slave->np = np; in slave_enable_netpoll()
1248 static inline void slave_disable_netpoll(struct slave *slave) in slave_disable_netpoll() argument
1250 struct netpoll *np = slave->np; in slave_disable_netpoll()
1255 slave->np = NULL; in slave_disable_netpoll()
1263 struct slave *slave = NULL; in bond_poll_controller() local
1271 bond_for_each_slave_rcu(bond, slave, iter) { in bond_poll_controller()
1272 if (!bond_slave_is_up(slave)) in bond_poll_controller()
1277 SLAVE_AD_INFO(slave)->port.aggregator; in bond_poll_controller()
1280 agg->aggregator_identifier != ad_info.aggregator_id) in bond_poll_controller()
1284 netpoll_poll_dev(slave->dev); in bond_poll_controller()
1292 struct slave *slave; in bond_netpoll_cleanup() local
1294 bond_for_each_slave(bond, slave, iter) in bond_netpoll_cleanup()
1295 if (bond_slave_is_up(slave)) in bond_netpoll_cleanup()
1296 slave_disable_netpoll(slave); in bond_netpoll_cleanup()
1299 static int bond_netpoll_setup(struct net_device *dev, struct netpoll_info *ni) in bond_netpoll_setup() argument
1301 struct bonding *bond = netdev_priv(dev); in bond_netpoll_setup()
1303 struct slave *slave; in bond_netpoll_setup() local
1306 bond_for_each_slave(bond, slave, iter) { in bond_netpoll_setup()
1307 err = slave_enable_netpoll(slave); in bond_netpoll_setup()
1309 bond_netpoll_cleanup(dev); in bond_netpoll_setup()
1316 static inline int slave_enable_netpoll(struct slave *slave) in slave_enable_netpoll() argument
1320 static inline void slave_disable_netpoll(struct slave *slave) in slave_disable_netpoll() argument
1328 /*---------------------------------- IOCTL ----------------------------------*/
1330 static netdev_features_t bond_fix_features(struct net_device *dev, in bond_fix_features() argument
1333 struct bonding *bond = netdev_priv(dev); in bond_fix_features()
1336 struct slave *slave; in bond_fix_features() local
1343 bond_for_each_slave(bond, slave, iter) { in bond_fix_features()
1345 slave->dev->features, in bond_fix_features()
1374 struct net_device *bond_dev = bond->dev; in bond_compute_features()
1376 struct slave *slave; in bond_compute_features() local
1386 bond_for_each_slave(bond, slave, iter) { in bond_compute_features()
1388 slave->dev->vlan_features, BOND_VLAN_FEATURES); in bond_compute_features()
1391 slave->dev->hw_enc_features, in bond_compute_features()
1396 slave->dev->hw_enc_features, in bond_compute_features()
1401 slave->dev->mpls_features, in bond_compute_features()
1404 dst_release_flag &= slave->dev->priv_flags; in bond_compute_features()
1405 if (slave->dev->hard_header_len > max_hard_header_len) in bond_compute_features()
1406 max_hard_header_len = slave->dev->hard_header_len; in bond_compute_features()
1408 gso_max_size = min(gso_max_size, slave->dev->gso_max_size); in bond_compute_features()
1409 gso_max_segs = min(gso_max_segs, slave->dev->gso_max_segs); in bond_compute_features()
1411 bond_dev->hard_header_len = max_hard_header_len; in bond_compute_features()
1414 bond_dev->vlan_features = vlan_features; in bond_compute_features()
1415 bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | in bond_compute_features()
1420 bond_dev->hw_enc_features |= xfrm_features; in bond_compute_features()
1422 bond_dev->mpls_features = mpls_features; in bond_compute_features()
1423 bond_dev->gso_max_segs = gso_max_segs; in bond_compute_features()
1426 bond_dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; in bond_compute_features()
1427 if ((bond_dev->priv_flags & IFF_XMIT_DST_RELEASE_PERM) && in bond_compute_features()
1429 bond_dev->priv_flags |= IFF_XMIT_DST_RELEASE; in bond_compute_features()
1437 bool was_up = !!(bond_dev->flags & IFF_UP); in bond_setup_by_slave()
1441 bond_dev->header_ops = slave_dev->header_ops; in bond_setup_by_slave()
1443 bond_dev->type = slave_dev->type; in bond_setup_by_slave()
1444 bond_dev->hard_header_len = slave_dev->hard_header_len; in bond_setup_by_slave()
1445 bond_dev->needed_headroom = slave_dev->needed_headroom; in bond_setup_by_slave()
1446 bond_dev->addr_len = slave_dev->addr_len; in bond_setup_by_slave()
1448 memcpy(bond_dev->broadcast, slave_dev->broadcast, in bond_setup_by_slave()
1449 slave_dev->addr_len); in bond_setup_by_slave()
1451 if (slave_dev->flags & IFF_POINTOPOINT) { in bond_setup_by_slave()
1452 bond_dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST); in bond_setup_by_slave()
1453 bond_dev->flags |= (IFF_POINTOPOINT | IFF_NOARP); in bond_setup_by_slave()
1459 /* On bonding slaves other than the currently active slave, suppress
1460 * duplicates except for alb non-mcast/bcast.
1463 struct slave *slave, in bond_should_deliver_exact_match() argument
1466 if (bond_is_slave_inactive(slave)) { in bond_should_deliver_exact_match()
1468 skb->pkt_type != PACKET_BROADCAST && in bond_should_deliver_exact_match()
1469 skb->pkt_type != PACKET_MULTICAST) in bond_should_deliver_exact_match()
1479 struct slave *slave; in bond_handle_frame() local
1482 struct slave *); in bond_handle_frame()
1491 slave = bond_slave_get_rcu(skb->dev); in bond_handle_frame()
1492 bond = slave->bond; in bond_handle_frame()
1494 recv_probe = READ_ONCE(bond->recv_probe); in bond_handle_frame()
1496 ret = recv_probe(skb, bond, slave); in bond_handle_frame()
1505 * be suppressed we want to make an exception for link-local packets. in bond_handle_frame()
1507 * inactive slave links without being forced to bind to them in bond_handle_frame()
1511 * (including link-local ones) can have their originating interface in bond_handle_frame()
1514 if (bond_should_deliver_exact_match(skb, slave, bond)) { in bond_handle_frame()
1515 if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) in bond_handle_frame()
1520 skb->dev = bond->dev; in bond_handle_frame()
1523 netif_is_bridge_port(bond->dev) && in bond_handle_frame()
1524 skb->pkt_type == PACKET_HOST) { in bond_handle_frame()
1527 skb->data - skb_mac_header(skb)))) { in bond_handle_frame()
1531 bond_hw_addr_copy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, in bond_handle_frame()
1532 bond->dev->addr_len); in bond_handle_frame()
1561 switch (bond->params.xmit_policy) { in bond_lag_hash_type()
1577 static int bond_master_upper_dev_link(struct bonding *bond, struct slave *slave, in bond_master_upper_dev_link() argument
1587 return netdev_master_upper_dev_link(slave->dev, bond->dev, slave, in bond_master_upper_dev_link()
1591 static void bond_upper_dev_unlink(struct bonding *bond, struct slave *slave) in bond_upper_dev_unlink() argument
1593 netdev_upper_dev_unlink(slave->dev, bond->dev); in bond_upper_dev_unlink()
1594 slave->dev->flags &= ~IFF_SLAVE; in bond_upper_dev_unlink()
1599 struct slave *slave = to_slave(kobj); in slave_kobj_release() local
1600 struct bonding *bond = bond_get_bond_by_slave(slave); in slave_kobj_release()
1602 cancel_delayed_work_sync(&slave->notify_work); in slave_kobj_release()
1604 kfree(SLAVE_AD_INFO(slave)); in slave_kobj_release()
1606 kfree(slave); in slave_kobj_release()
1616 static int bond_kobj_init(struct slave *slave) in bond_kobj_init() argument
1620 err = kobject_init_and_add(&slave->kobj, &slave_ktype, in bond_kobj_init()
1621 &(slave->dev->dev.kobj), "bonding_slave"); in bond_kobj_init()
1623 kobject_put(&slave->kobj); in bond_kobj_init()
1628 static struct slave *bond_alloc_slave(struct bonding *bond, in bond_alloc_slave()
1631 struct slave *slave = NULL; in bond_alloc_slave() local
1633 slave = kzalloc(sizeof(*slave), GFP_KERNEL); in bond_alloc_slave()
1634 if (!slave) in bond_alloc_slave()
1637 slave->bond = bond; in bond_alloc_slave()
1638 slave->dev = slave_dev; in bond_alloc_slave()
1639 INIT_DELAYED_WORK(&slave->notify_work, bond_netdev_notify_work); in bond_alloc_slave()
1641 if (bond_kobj_init(slave)) in bond_alloc_slave()
1645 SLAVE_AD_INFO(slave) = kzalloc(sizeof(struct ad_slave_info), in bond_alloc_slave()
1647 if (!SLAVE_AD_INFO(slave)) { in bond_alloc_slave()
1648 kobject_put(&slave->kobj); in bond_alloc_slave()
1653 return slave; in bond_alloc_slave()
1658 info->bond_mode = BOND_MODE(bond); in bond_fill_ifbond()
1659 info->miimon = bond->params.miimon; in bond_fill_ifbond()
1660 info->num_slaves = bond->slave_cnt; in bond_fill_ifbond()
1663 static void bond_fill_ifslave(struct slave *slave, struct ifslave *info) in bond_fill_ifslave() argument
1665 strcpy(info->slave_name, slave->dev->name); in bond_fill_ifslave()
1666 info->link = slave->link; in bond_fill_ifslave()
1667 info->state = bond_slave_state(slave); in bond_fill_ifslave()
1668 info->link_failure_count = slave->link_failure_count; in bond_fill_ifslave()
1673 struct slave *slave = container_of(_work, struct slave, in bond_netdev_notify_work() local
1679 bond_fill_ifslave(slave, &binfo.slave); in bond_netdev_notify_work()
1680 bond_fill_ifbond(slave->bond, &binfo.master); in bond_netdev_notify_work()
1681 netdev_bonding_info_change(slave->dev, &binfo); in bond_netdev_notify_work()
1684 queue_delayed_work(slave->bond->wq, &slave->notify_work, 1); in bond_netdev_notify_work()
1688 void bond_queue_slave_event(struct slave *slave) in bond_queue_slave_event() argument
1690 queue_delayed_work(slave->bond->wq, &slave->notify_work, 0); in bond_queue_slave_event()
1693 void bond_lower_state_changed(struct slave *slave) in bond_lower_state_changed() argument
1697 info.link_up = slave->link == BOND_LINK_UP || in bond_lower_state_changed()
1698 slave->link == BOND_LINK_FAIL; in bond_lower_state_changed()
1699 info.tx_enabled = bond_is_active_slave(slave); in bond_lower_state_changed()
1700 netdev_lower_state_changed(slave->dev, &info); in bond_lower_state_changed()
1703 /* enslave device <slave> to bond device <master> */
1708 const struct net_device_ops *slave_ops = slave_dev->netdev_ops; in bond_enslave()
1709 struct slave *new_slave = NULL, *prev_slave; in bond_enslave()
1714 if (!bond->params.use_carrier && in bond_enslave()
1715 slave_dev->ethtool_ops->get_link == NULL && in bond_enslave()
1716 slave_ops->ndo_do_ioctl == NULL) { in bond_enslave()
1720 /* already in-use? */ in bond_enslave()
1725 return -EBUSY; in bond_enslave()
1731 return -EPERM; in bond_enslave()
1736 if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) { in bond_enslave()
1740 …slave_err(bond_dev, slave_dev, "Error: cannot enslave VLAN challenged slave on VLAN enabled bond\n… in bond_enslave()
1741 return -EPERM; in bond_enslave()
1743 …slave_warn(bond_dev, slave_dev, "enslaved VLAN challenged slave. Adding VLANs will be blocked as l… in bond_enslave()
1749 if (slave_dev->features & NETIF_F_HW_ESP) in bond_enslave()
1750 slave_dbg(bond_dev, slave_dev, "is esp-hw-offload capable\n"); in bond_enslave()
1753 * be identified with moderate accuracy by the state of the slave: in bond_enslave()
1757 if (slave_dev->flags & IFF_UP) { in bond_enslave()
1759 slave_err(bond_dev, slave_dev, "slave is up - this may be due to an out of date ifenslave\n"); in bond_enslave()
1760 return -EPERM; in bond_enslave()
1763 /* set bonding device ether type by slave - bonding netdevices are in bond_enslave()
1764 * created with ether_setup, so when the slave type is not ARPHRD_ETHER in bond_enslave()
1767 * bond ether type mutual exclusion - don't allow slaves of dissimilar in bond_enslave()
1771 if (bond_dev->type != slave_dev->type) { in bond_enslave()
1773 bond_dev->type, slave_dev->type); in bond_enslave()
1780 return -EBUSY; in bond_enslave()
1787 if (slave_dev->type != ARPHRD_ETHER) in bond_enslave()
1791 bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING; in bond_enslave()
1797 } else if (bond_dev->type != slave_dev->type) { in bond_enslave()
1800 slave_dev->type, bond_dev->type); in bond_enslave()
1801 return -EINVAL; in bond_enslave()
1804 if (slave_dev->type == ARPHRD_INFINIBAND && in bond_enslave()
1806 NL_SET_ERR_MSG(extack, "Only active-backup mode is supported for infiniband slaves"); in bond_enslave()
1807 slave_warn(bond_dev, slave_dev, "Type (%d) supports only active-backup mode\n", in bond_enslave()
1808 slave_dev->type); in bond_enslave()
1809 res = -EOPNOTSUPP; in bond_enslave()
1813 if (!slave_ops->ndo_set_mac_address || in bond_enslave()
1814 slave_dev->type == ARPHRD_INFINIBAND) { in bond_enslave()
1815 …slave_warn(bond_dev, slave_dev, "The slave device specified does not support setting the MAC addre… in bond_enslave()
1817 bond->params.fail_over_mac != BOND_FOM_ACTIVE) { in bond_enslave()
1819 bond->params.fail_over_mac = BOND_FOM_ACTIVE; in bond_enslave()
1820 slave_warn(bond_dev, slave_dev, "Setting fail_over_mac to active for active-backup mode\n"); in bond_enslave()
1822 …NL_SET_ERR_MSG(extack, "Slave device does not support setting the MAC address, but fail_over_mac i… in bond_enslave()
1823 …slave_err(bond_dev, slave_dev, "The slave device specified does not support setting the MAC addres… in bond_enslave()
1824 res = -EOPNOTSUPP; in bond_enslave()
1832 /* If this is the first slave, then we need to set the master's hardware in bond_enslave()
1833 * address to be the same as the slave's. in bond_enslave()
1836 bond->dev->addr_assign_type == NET_ADDR_RANDOM) { in bond_enslave()
1837 res = bond_set_dev_addr(bond->dev, slave_dev); in bond_enslave()
1844 res = -ENOMEM; in bond_enslave()
1851 new_slave->queue_id = 0; in bond_enslave()
1853 /* Save slave's original mtu and then set it to match the bond */ in bond_enslave()
1854 new_slave->original_mtu = slave_dev->mtu; in bond_enslave()
1855 res = dev_set_mtu(slave_dev, bond->dev->mtu); in bond_enslave()
1861 /* Save slave's original ("permanent") mac address for modes in bond_enslave()
1865 bond_hw_addr_copy(new_slave->perm_hwaddr, slave_dev->dev_addr, in bond_enslave()
1866 slave_dev->addr_len); in bond_enslave()
1868 if (!bond->params.fail_over_mac || in bond_enslave()
1870 /* Set slave to master's mac address. The application already in bond_enslave()
1871 * set the master's mac address to that of the first slave in bond_enslave()
1873 memcpy(ss.__data, bond_dev->dev_addr, bond_dev->addr_len); in bond_enslave()
1874 ss.ss_family = slave_dev->type; in bond_enslave()
1883 /* set slave flag before open to prevent IPv6 addrconf */ in bond_enslave()
1884 slave_dev->flags |= IFF_SLAVE; in bond_enslave()
1886 /* open the slave since the application closed it */ in bond_enslave()
1889 slave_err(bond_dev, slave_dev, "Opening slave failed\n"); in bond_enslave()
1893 slave_dev->priv_flags |= IFF_BONDING; in bond_enslave()
1894 /* initialize slave stats */ in bond_enslave()
1895 dev_get_stats(new_slave->dev, &new_slave->slave_stats); in bond_enslave()
1914 new_slave->delay = 0; in bond_enslave()
1915 new_slave->link_failure_count = 0; in bond_enslave()
1919 new_slave->link = BOND_LINK_DOWN; in bond_enslave()
1921 new_slave->last_rx = jiffies - in bond_enslave()
1922 (msecs_to_jiffies(bond->params.arp_interval) + 1); in bond_enslave()
1924 new_slave->target_last_arp_rx[i] = new_slave->last_rx; in bond_enslave()
1926 if (bond->params.miimon && !bond->params.use_carrier) { in bond_enslave()
1929 if ((link_reporting == -1) && !bond->params.arp_interval) { in bond_enslave()
1938 …slave_warn(bond_dev, slave_dev, "MII and ETHTOOL support not available for slave, and arp_interval… in bond_enslave()
1939 } else if (link_reporting == -1) { in bond_enslave()
1941 …slave_warn(bond_dev, slave_dev, "can't get link status from slave; the network driver associated w… in bond_enslave()
1946 new_slave->link = BOND_LINK_NOCHANGE; in bond_enslave()
1947 if (bond->params.miimon) { in bond_enslave()
1949 if (bond->params.updelay) { in bond_enslave()
1953 new_slave->delay = bond->params.updelay; in bond_enslave()
1963 } else if (bond->params.arp_interval) { in bond_enslave()
1973 if (new_slave->link != BOND_LINK_DOWN) in bond_enslave()
1974 new_slave->last_link_up = jiffies; in bond_enslave()
1975 slave_dbg(bond_dev, slave_dev, "Initial state of slave is BOND_LINK_%s\n", in bond_enslave()
1976 new_slave->link == BOND_LINK_DOWN ? "DOWN" : in bond_enslave()
1977 (new_slave->link == BOND_LINK_UP ? "UP" : "BACK")); in bond_enslave()
1979 if (bond_uses_primary(bond) && bond->params.primary[0]) { in bond_enslave()
1980 /* if there is a primary slave, remember it */ in bond_enslave()
1981 if (strcmp(bond->params.primary, new_slave->dev->name) == 0) { in bond_enslave()
1982 rcu_assign_pointer(bond->primary_slave, new_slave); in bond_enslave()
1983 bond->force_primary = true; in bond_enslave()
1998 /* if this is the first slave */ in bond_enslave()
2000 SLAVE_AD_INFO(new_slave)->id = 1; in bond_enslave()
2006 SLAVE_AD_INFO(new_slave)->id = in bond_enslave()
2007 SLAVE_AD_INFO(prev_slave)->id + 1; in bond_enslave()
2018 slave_dbg(bond_dev, slave_dev, "This slave is always active in trunk mode\n"); in bond_enslave()
2027 if (!rcu_access_pointer(bond->curr_active_slave) && in bond_enslave()
2028 new_slave->link == BOND_LINK_UP) in bond_enslave()
2029 rcu_assign_pointer(bond->curr_active_slave, new_slave); in bond_enslave()
2035 if (bond->dev->npinfo) { in bond_enslave()
2037 …slave_info(bond_dev, slave_dev, "master_dev is using netpoll, but new slave device does not suppor… in bond_enslave()
2038 res = -EBUSY; in bond_enslave()
2044 if (!(bond_dev->features & NETIF_F_LRO)) in bond_enslave()
2070 /* set promiscuity level to new slave */ in bond_enslave()
2071 if (bond_dev->flags & IFF_PROMISC) { in bond_enslave()
2077 /* set allmulti level to new slave */ in bond_enslave()
2078 if (bond_dev->flags & IFF_ALLMULTI) { in bond_enslave()
2081 if (bond_dev->flags & IFF_PROMISC) in bond_enslave()
2082 dev_set_promiscuity(slave_dev, -1); in bond_enslave()
2087 if (bond_dev->flags & IFF_UP) { in bond_enslave()
2098 bond->slave_cnt++; in bond_enslave()
2114 new_slave->link != BOND_LINK_DOWN ? "an up" : "a down"); in bond_enslave()
2132 if (rcu_access_pointer(bond->primary_slave) == new_slave) in bond_enslave()
2133 RCU_INIT_POINTER(bond->primary_slave, NULL); in bond_enslave()
2134 if (rcu_access_pointer(bond->curr_active_slave) == new_slave) { in bond_enslave()
2146 slave_dev->priv_flags &= ~IFF_BONDING; in bond_enslave()
2150 slave_dev->flags &= ~IFF_SLAVE; in bond_enslave()
2151 if (!bond->params.fail_over_mac || in bond_enslave()
2153 /* XXX TODO - fom follow mode needs to change master's in bond_enslave()
2154 * MAC if this slave's MAC is in use by the bond, or at in bond_enslave()
2157 bond_hw_addr_copy(ss.__data, new_slave->perm_hwaddr, in bond_enslave()
2158 new_slave->dev->addr_len); in bond_enslave()
2159 ss.ss_family = slave_dev->type; in bond_enslave()
2164 dev_set_mtu(slave_dev, new_slave->original_mtu); in bond_enslave()
2167 kobject_put(&new_slave->kobj); in bond_enslave()
2170 /* Enslave of first slave has failed and we need to fix master's mac */ in bond_enslave()
2172 if (ether_addr_equal_64bits(bond_dev->dev_addr, in bond_enslave()
2173 slave_dev->dev_addr)) in bond_enslave()
2175 if (bond_dev->type != ARPHRD_ETHER) { in bond_enslave()
2178 bond_dev->flags |= IFF_MASTER; in bond_enslave()
2179 bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING; in bond_enslave()
2186 /* Try to release the slave device <slave> from the bond device <master>
2188 * is RTNL-locked. If "all" is true it means that the function is being called
2191 * The rules for slave state should be:
2202 struct slave *slave, *oldcurrent; in __bond_release_one() local
2204 int old_flags = bond_dev->flags; in __bond_release_one()
2205 netdev_features_t old_features = bond_dev->features; in __bond_release_one()
2207 /* slave is not a slave or master is not master of this slave */ in __bond_release_one()
2208 if (!(slave_dev->flags & IFF_SLAVE) || in __bond_release_one()
2210 slave_dbg(bond_dev, slave_dev, "cannot release slave\n"); in __bond_release_one()
2211 return -EINVAL; in __bond_release_one()
2216 slave = bond_get_slave_by_dev(bond, slave_dev); in __bond_release_one()
2217 if (!slave) { in __bond_release_one()
2218 /* not a slave of this bond */ in __bond_release_one()
2221 return -EINVAL; in __bond_release_one()
2224 bond_set_slave_inactive_flags(slave, BOND_SLAVE_NOTIFY_NOW); in __bond_release_one()
2226 bond_sysfs_slave_del(slave); in __bond_release_one()
2228 /* recompute stats just before removing the slave */ in __bond_release_one()
2229 bond_get_stats(bond->dev, &bond->bond_stats); in __bond_release_one()
2232 * for this slave anymore. in __bond_release_one()
2237 bond_3ad_unbind_slave(slave); in __bond_release_one()
2239 bond_upper_dev_unlink(bond, slave); in __bond_release_one()
2242 bond_update_slave_arr(bond, slave); in __bond_release_one()
2245 bond_is_active_slave(slave) ? "active" : "backup"); in __bond_release_one()
2247 oldcurrent = rcu_access_pointer(bond->curr_active_slave); in __bond_release_one()
2249 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in __bond_release_one()
2251 if (!all && (!bond->params.fail_over_mac || in __bond_release_one()
2253 if (ether_addr_equal_64bits(bond_dev->dev_addr, slave->perm_hwaddr) && in __bond_release_one()
2255 …ond_dev, slave_dev, "the permanent HWaddr of slave - %pM - is still in use by bond - set the HWadd… in __bond_release_one()
2256 slave->perm_hwaddr); in __bond_release_one()
2259 if (rtnl_dereference(bond->primary_slave) == slave) in __bond_release_one()
2260 RCU_INIT_POINTER(bond->primary_slave, NULL); in __bond_release_one()
2262 if (oldcurrent == slave) in __bond_release_one()
2266 /* Must be called only after the slave has been in __bond_release_one()
2269 * but before a new active slave is selected. in __bond_release_one()
2271 bond_alb_deinit_slave(bond, slave); in __bond_release_one()
2275 RCU_INIT_POINTER(bond->curr_active_slave, NULL); in __bond_release_one()
2276 } else if (oldcurrent == slave) { in __bond_release_one()
2278 * is no concern that another slave add/remove event in __bond_release_one()
2290 bond->slave_cnt--; in __bond_release_one()
2293 call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev); in __bond_release_one()
2294 call_netdevice_notifiers(NETDEV_RELEASE, bond->dev); in __bond_release_one()
2298 if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) && in __bond_release_one()
2300 …slave_info(bond_dev, slave_dev, "last VLAN challenged slave left bond - VLAN blocking is removed\n… in __bond_release_one()
2308 /* unset promiscuity level from slave in __bond_release_one()
2312 * when this slave was attached, so we cache at the start of the in __bond_release_one()
2316 dev_set_promiscuity(slave_dev, -1); in __bond_release_one()
2318 /* unset allmulti level from slave */ in __bond_release_one()
2320 dev_set_allmulti(slave_dev, -1); in __bond_release_one()
2326 slave_disable_netpoll(slave); in __bond_release_one()
2328 /* close slave before restoring its mac address */ in __bond_release_one()
2331 if (bond->params.fail_over_mac != BOND_FOM_ACTIVE || in __bond_release_one()
2334 bond_hw_addr_copy(ss.__data, slave->perm_hwaddr, in __bond_release_one()
2335 slave->dev->addr_len); in __bond_release_one()
2336 ss.ss_family = slave_dev->type; in __bond_release_one()
2341 __dev_set_mtu(slave_dev, slave->original_mtu); in __bond_release_one()
2343 dev_set_mtu(slave_dev, slave->original_mtu); in __bond_release_one()
2346 slave_dev->priv_flags &= ~IFF_BONDING; in __bond_release_one()
2348 kobject_put(&slave->kobj); in __bond_release_one()
2359 /* First release a slave and then destroy the bond if no more slaves are left.
2370 bond_dev->reg_state != NETREG_UNREGISTERING) { in bond_release_and_destroy()
2371 bond_dev->priv_flags |= IFF_DISABLE_NETPOLL; in bond_release_and_destroy()
2389 int i = 0, res = -ENODEV; in bond_slave_info_query()
2390 struct slave *slave; in bond_slave_info_query() local
2392 bond_for_each_slave(bond, slave, iter) { in bond_slave_info_query()
2393 if (i++ == (int)info->slave_id) { in bond_slave_info_query()
2395 bond_fill_ifslave(slave, info); in bond_slave_info_query()
2403 /*-------------------------------- Monitoring -------------------------------*/
2411 struct slave *slave; in bond_miimon_inspect() local
2414 ignore_updelay = !rcu_dereference(bond->curr_active_slave); in bond_miimon_inspect()
2418 usable_slaves = rcu_dereference(bond->usable_slaves); in bond_miimon_inspect()
2420 if (usable_slaves && usable_slaves->count == 0) in bond_miimon_inspect()
2424 bond_for_each_slave_rcu(bond, slave, iter) { in bond_miimon_inspect()
2425 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_miimon_inspect()
2427 link_state = bond_check_dev_link(bond, slave->dev, 0); in bond_miimon_inspect()
2429 switch (slave->link) { in bond_miimon_inspect()
2434 bond_propose_link_state(slave, BOND_LINK_FAIL); in bond_miimon_inspect()
2436 slave->delay = bond->params.downdelay; in bond_miimon_inspect()
2437 if (slave->delay) { in bond_miimon_inspect()
2438 slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n", in bond_miimon_inspect()
2441 (bond_is_active_slave(slave) ? in bond_miimon_inspect()
2443 bond->params.downdelay * bond->params.miimon); in bond_miimon_inspect()
2449 bond_propose_link_state(slave, BOND_LINK_UP); in bond_miimon_inspect()
2450 slave->last_link_up = jiffies; in bond_miimon_inspect()
2451 slave_info(bond->dev, slave->dev, "link status up again after %d ms\n", in bond_miimon_inspect()
2452 (bond->params.downdelay - slave->delay) * in bond_miimon_inspect()
2453 bond->params.miimon); in bond_miimon_inspect()
2458 if (slave->delay <= 0) { in bond_miimon_inspect()
2459 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_miimon_inspect()
2464 slave->delay--; in bond_miimon_inspect()
2471 bond_propose_link_state(slave, BOND_LINK_BACK); in bond_miimon_inspect()
2473 slave->delay = bond->params.updelay; in bond_miimon_inspect()
2475 if (slave->delay) { in bond_miimon_inspect()
2476 slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n", in bond_miimon_inspect()
2478 bond->params.updelay * in bond_miimon_inspect()
2479 bond->params.miimon); in bond_miimon_inspect()
2484 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_miimon_inspect()
2485 slave_info(bond->dev, slave->dev, "link status down again after %d ms\n", in bond_miimon_inspect()
2486 (bond->params.updelay - slave->delay) * in bond_miimon_inspect()
2487 bond->params.miimon); in bond_miimon_inspect()
2493 slave->delay = 0; in bond_miimon_inspect()
2495 if (slave->delay <= 0) { in bond_miimon_inspect()
2496 bond_propose_link_state(slave, BOND_LINK_UP); in bond_miimon_inspect()
2502 slave->delay--; in bond_miimon_inspect()
2511 struct slave *slave, in bond_miimon_link_change() argument
2516 bond_3ad_handle_link_change(slave, link); in bond_miimon_link_change()
2520 bond_alb_handle_link_change(bond, slave, link); in bond_miimon_link_change()
2531 struct slave *slave, *primary; in bond_miimon_commit() local
2533 bond_for_each_slave(bond, slave, iter) { in bond_miimon_commit()
2534 switch (slave->link_new_state) { in bond_miimon_commit()
2536 /* For 802.3ad mode, check current slave speed and in bond_miimon_commit()
2543 slave->link == BOND_LINK_UP) in bond_miimon_commit()
2544 bond_3ad_adapter_speed_duplex_changed(slave); in bond_miimon_commit()
2548 if (bond_update_speed_duplex(slave) && in bond_miimon_commit()
2550 slave->link = BOND_LINK_DOWN; in bond_miimon_commit()
2552 slave_warn(bond->dev, slave->dev, in bond_miimon_commit()
2556 bond_set_slave_link_state(slave, BOND_LINK_UP, in bond_miimon_commit()
2558 slave->last_link_up = jiffies; in bond_miimon_commit()
2560 primary = rtnl_dereference(bond->primary_slave); in bond_miimon_commit()
2563 bond_set_backup_slave(slave); in bond_miimon_commit()
2566 bond_set_active_slave(slave); in bond_miimon_commit()
2569 slave_info(bond->dev, slave->dev, "link status definitely up, %u Mbps %s duplex\n", in bond_miimon_commit()
2570 slave->speed == SPEED_UNKNOWN ? 0 : slave->speed, in bond_miimon_commit()
2571 slave->duplex ? "full" : "half"); in bond_miimon_commit()
2573 bond_miimon_link_change(bond, slave, BOND_LINK_UP); in bond_miimon_commit()
2575 if (!bond->curr_active_slave || slave == primary) in bond_miimon_commit()
2581 if (slave->link_failure_count < UINT_MAX) in bond_miimon_commit()
2582 slave->link_failure_count++; in bond_miimon_commit()
2584 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_miimon_commit()
2589 bond_set_slave_inactive_flags(slave, in bond_miimon_commit()
2592 slave_info(bond->dev, slave->dev, "link status definitely down, disabling slave\n"); in bond_miimon_commit()
2594 bond_miimon_link_change(bond, slave, BOND_LINK_DOWN); in bond_miimon_commit()
2596 if (slave == rcu_access_pointer(bond->curr_active_slave)) in bond_miimon_commit()
2602 slave_err(bond->dev, slave->dev, "invalid new link %d on slave\n", in bond_miimon_commit()
2603 slave->link_new_state); in bond_miimon_commit()
2604 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_miimon_commit()
2632 struct slave *slave; in bond_mii_monitor() local
2635 delay = msecs_to_jiffies(bond->params.miimon); in bond_mii_monitor()
2643 if (bond->send_peer_notif) { in bond_mii_monitor()
2646 bond->send_peer_notif--; in bond_mii_monitor()
2661 bond_for_each_slave(bond, slave, iter) { in bond_mii_monitor()
2662 bond_commit_link_state(slave, BOND_SLAVE_NOTIFY_LATER); in bond_mii_monitor()
2670 if (bond->params.miimon) in bond_mii_monitor()
2671 queue_delayed_work(bond->wq, &bond->mii_work, delay); in bond_mii_monitor()
2676 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev); in bond_mii_monitor()
2684 __be32 ip = *(__be32 *)priv->data; in bond_upper_dev_walk()
2696 if (ip == bond_confirm_addr(bond->dev, 0, ip)) in bond_has_this_ip()
2700 if (netdev_walk_all_upper_dev_rcu(bond->dev, bond_upper_dev_walk, &priv)) in bond_has_this_ip()
2709 * "native" to a VLAN) might not pass non-tagged frames.
2711 static void bond_arp_send(struct slave *slave, int arp_op, __be32 dest_ip, in bond_arp_send() argument
2716 struct net_device *slave_dev = slave->dev; in bond_arp_send()
2717 struct net_device *bond_dev = slave->bond->dev; in bond_arp_send()
2719 slave_dbg(bond_dev, slave_dev, "arp %d on slave: dst %pI4 src %pI4\n", in bond_arp_send()
2723 NULL, slave_dev->dev_addr, NULL); in bond_arp_send()
2730 if (!tags || tags->vlan_proto == VLAN_N_VID) in bond_arp_send()
2736 while (tags->vlan_proto != VLAN_N_VID) { in bond_arp_send()
2737 if (!tags->vlan_id) { in bond_arp_send()
2743 ntohs(outer_tag->vlan_proto), tags->vlan_id); in bond_arp_send()
2744 skb = vlan_insert_tag_set_proto(skb, tags->vlan_proto, in bond_arp_send()
2745 tags->vlan_id); in bond_arp_send()
2754 if (outer_tag->vlan_id) { in bond_arp_send()
2756 ntohs(outer_tag->vlan_proto), outer_tag->vlan_id); in bond_arp_send()
2757 __vlan_hwaccel_put_tag(skb, outer_tag->vlan_proto, in bond_arp_send()
2758 outer_tag->vlan_id); in bond_arp_send()
2782 return ERR_PTR(-ENOMEM); in bond_verify_device_path()
2805 static void bond_arp_send_all(struct bonding *bond, struct slave *slave) in bond_arp_send_all() argument
2809 __be32 *targets = bond->params.arp_targets, addr; in bond_arp_send_all()
2813 slave_dbg(bond->dev, slave->dev, "%s: target %pI4\n", in bond_arp_send_all()
2817 /* Find out through which dev should the packet go */ in bond_arp_send_all()
2818 rt = ip_route_output(dev_net(bond->dev), targets[i], 0, in bond_arp_send_all()
2821 /* there's no route to target - try to send arp in bond_arp_send_all()
2824 if (bond->params.arp_validate) in bond_arp_send_all()
2826 bond->dev->name, in bond_arp_send_all()
2828 bond_arp_send(slave, ARPOP_REQUEST, targets[i], in bond_arp_send_all()
2834 if (rt->dst.dev == bond->dev) in bond_arp_send_all()
2838 tags = bond_verify_device_path(bond->dev, rt->dst.dev, 0); in bond_arp_send_all()
2844 /* Not our device - skip */ in bond_arp_send_all()
2845 slave_dbg(bond->dev, slave->dev, "no path to arp_ip_target %pI4 via rt.dev %s\n", in bond_arp_send_all()
2846 &targets[i], rt->dst.dev ? rt->dst.dev->name : "NULL"); in bond_arp_send_all()
2852 addr = bond_confirm_addr(rt->dst.dev, targets[i], 0); in bond_arp_send_all()
2854 bond_arp_send(slave, ARPOP_REQUEST, targets[i], addr, tags); in bond_arp_send_all()
2859 static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32 sip, __be32 tip) in bond_validate_arp() argument
2864 slave_dbg(bond->dev, slave->dev, "%s: sip %pI4 tip %pI4 not found\n", in bond_validate_arp()
2869 i = bond_get_targets_ip(bond->params.arp_targets, sip); in bond_validate_arp()
2870 if (i == -1) { in bond_validate_arp()
2871 slave_dbg(bond->dev, slave->dev, "%s: sip %pI4 not found in targets\n", in bond_validate_arp()
2875 slave->last_rx = jiffies; in bond_validate_arp()
2876 slave->target_last_arp_rx[i] = jiffies; in bond_validate_arp()
2880 struct slave *slave) in bond_arp_rcv() argument
2882 struct arphdr *arp = (struct arphdr *)skb->data; in bond_arp_rcv()
2883 struct slave *curr_active_slave, *curr_arp_slave; in bond_arp_rcv()
2886 int is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP); in bond_arp_rcv()
2889 if (!slave_do_arp_validate(bond, slave)) { in bond_arp_rcv()
2892 slave->last_rx = jiffies; in bond_arp_rcv()
2898 alen = arp_hdr_len(bond->dev); in bond_arp_rcv()
2900 slave_dbg(bond->dev, slave->dev, "%s: skb->dev %s\n", in bond_arp_rcv()
2901 __func__, skb->dev->name); in bond_arp_rcv()
2911 if (arp->ar_hln != bond->dev->addr_len || in bond_arp_rcv()
2912 skb->pkt_type == PACKET_OTHERHOST || in bond_arp_rcv()
2913 skb->pkt_type == PACKET_LOOPBACK || in bond_arp_rcv()
2914 arp->ar_hrd != htons(ARPHRD_ETHER) || in bond_arp_rcv()
2915 arp->ar_pro != htons(ETH_P_IP) || in bond_arp_rcv()
2916 arp->ar_pln != 4) in bond_arp_rcv()
2920 arp_ptr += bond->dev->addr_len; in bond_arp_rcv()
2922 arp_ptr += 4 + bond->dev->addr_len; in bond_arp_rcv()
2925 slave_dbg(bond->dev, slave->dev, "%s: %s/%d av %d sv %d sip %pI4 tip %pI4\n", in bond_arp_rcv()
2926 __func__, slave->dev->name, bond_slave_state(slave), in bond_arp_rcv()
2927 bond->params.arp_validate, slave_do_arp_validate(bond, slave), in bond_arp_rcv()
2930 curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_arp_rcv()
2931 curr_arp_slave = rcu_dereference(bond->current_arp_slave); in bond_arp_rcv()
2935 * (a) the slave receiving the ARP is active (which includes the in bond_arp_rcv()
2936 * current ARP slave, if any), or in bond_arp_rcv()
2938 * (b) the receiving slave isn't active, but there is a currently in bond_arp_rcv()
2939 * active slave and it received valid arp reply(s) after it became in bond_arp_rcv()
2940 * the currently active slave, or in bond_arp_rcv()
2942 * (c) there is an ARP slave that sent an ARP during the prior ARP in bond_arp_rcv()
2943 * interval, and we receive an ARP reply on any slave. We accept in bond_arp_rcv()
2945 * reply to a slave other than the sender of the ARP request. in bond_arp_rcv()
2949 * slave through the L2 switch(es) to the receiving slave. Since in bond_arp_rcv()
2956 if (bond_is_active_slave(slave)) in bond_arp_rcv()
2957 bond_validate_arp(bond, slave, sip, tip); in bond_arp_rcv()
2960 curr_active_slave->last_link_up)) in bond_arp_rcv()
2961 bond_validate_arp(bond, slave, tip, sip); in bond_arp_rcv()
2962 else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) && in bond_arp_rcv()
2964 dev_trans_start(curr_arp_slave->dev), 1)) in bond_arp_rcv()
2965 bond_validate_arp(bond, slave, sip, tip); in bond_arp_rcv()
2968 if (arp != (struct arphdr *)skb->data) in bond_arp_rcv()
2974 * (last_act - arp_interval) <= jiffies <= (last_act + mod * arp_interval +
2980 int delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval); in bond_time_in_interval()
2983 last_act - delta_in_ticks, in bond_time_in_interval()
2987 /* This function is called regularly to monitor each slave's link
2989 * is used in load-balancing mode. if the adapter has been dormant, then an
2995 struct slave *slave, *oldcurrent; in bond_loadbalance_arp_mon() local
3004 oldcurrent = rcu_dereference(bond->curr_active_slave); in bond_loadbalance_arp_mon()
3007 * the picture unless it is null. also, slave->last_link_up is not in bond_loadbalance_arp_mon()
3008 * needed here because we send an arp on each slave and give a slave in bond_loadbalance_arp_mon()
3013 bond_for_each_slave_rcu(bond, slave, iter) { in bond_loadbalance_arp_mon()
3014 unsigned long trans_start = dev_trans_start(slave->dev); in bond_loadbalance_arp_mon()
3016 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_loadbalance_arp_mon()
3018 if (slave->link != BOND_LINK_UP) { in bond_loadbalance_arp_mon()
3020 bond_time_in_interval(bond, slave->last_rx, 1)) { in bond_loadbalance_arp_mon()
3022 bond_propose_link_state(slave, BOND_LINK_UP); in bond_loadbalance_arp_mon()
3025 /* primary_slave has no meaning in round-robin in bond_loadbalance_arp_mon()
3026 * mode. the window of a slave being up and in bond_loadbalance_arp_mon()
3031 slave_info(bond->dev, slave->dev, "link status definitely up\n"); in bond_loadbalance_arp_mon()
3034 slave_info(bond->dev, slave->dev, "interface is now up\n"); in bond_loadbalance_arp_mon()
3038 /* slave->link == BOND_LINK_UP */ in bond_loadbalance_arp_mon()
3045 !bond_time_in_interval(bond, slave->last_rx, 2)) { in bond_loadbalance_arp_mon()
3047 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_loadbalance_arp_mon()
3050 if (slave->link_failure_count < UINT_MAX) in bond_loadbalance_arp_mon()
3051 slave->link_failure_count++; in bond_loadbalance_arp_mon()
3053 slave_info(bond->dev, slave->dev, "interface is now down\n"); in bond_loadbalance_arp_mon()
3055 if (slave == oldcurrent) in bond_loadbalance_arp_mon()
3060 /* note: if switch is in round-robin mode, all links in bond_loadbalance_arp_mon()
3061 * must tx arp to ensure all links rx an arp - otherwise in bond_loadbalance_arp_mon()
3064 * do - all replies will be rx'ed on same link causing slaves in bond_loadbalance_arp_mon()
3067 if (bond_slave_is_up(slave)) in bond_loadbalance_arp_mon()
3068 bond_arp_send_all(bond, slave); in bond_loadbalance_arp_mon()
3077 bond_for_each_slave(bond, slave, iter) { in bond_loadbalance_arp_mon()
3078 if (slave->link_new_state != BOND_LINK_NOCHANGE) in bond_loadbalance_arp_mon()
3079 slave->link = slave->link_new_state; in bond_loadbalance_arp_mon()
3096 if (bond->params.arp_interval) in bond_loadbalance_arp_mon()
3097 queue_delayed_work(bond->wq, &bond->arp_work, in bond_loadbalance_arp_mon()
3098 msecs_to_jiffies(bond->params.arp_interval)); in bond_loadbalance_arp_mon()
3101 /* Called to inspect slaves for active-backup mode ARP monitor link state
3103 * should take place for the slave. Returns 0 if no changes are found, >0
3112 struct slave *slave; in bond_ab_arp_inspect() local
3115 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_inspect()
3116 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_ab_arp_inspect()
3117 last_rx = slave_last_rx(bond, slave); in bond_ab_arp_inspect()
3119 if (slave->link != BOND_LINK_UP) { in bond_ab_arp_inspect()
3121 bond_propose_link_state(slave, BOND_LINK_UP); in bond_ab_arp_inspect()
3123 } else if (slave->link == BOND_LINK_BACK) { in bond_ab_arp_inspect()
3124 bond_propose_link_state(slave, BOND_LINK_FAIL); in bond_ab_arp_inspect()
3134 if (bond_time_in_interval(bond, slave->last_link_up, 2)) in bond_ab_arp_inspect()
3137 /* Backup slave is down if: in bond_ab_arp_inspect()
3138 * - No current_arp_slave AND in bond_ab_arp_inspect()
3139 * - more than 3*delta since last receive AND in bond_ab_arp_inspect()
3140 * - the bond has an IP address in bond_ab_arp_inspect()
3142 * Note: a non-null current_arp_slave indicates in bond_ab_arp_inspect()
3145 * we only take the curr_active_slave down - this in bond_ab_arp_inspect()
3146 * gives each slave a chance to tx/rx traffic in bond_ab_arp_inspect()
3149 if (!bond_is_active_slave(slave) && in bond_ab_arp_inspect()
3150 !rcu_access_pointer(bond->current_arp_slave) && in bond_ab_arp_inspect()
3152 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_ab_arp_inspect()
3156 /* Active slave is down if: in bond_ab_arp_inspect()
3157 * - more than 2*delta since transmitting OR in bond_ab_arp_inspect()
3158 * - (more than 2*delta since receive AND in bond_ab_arp_inspect()
3161 trans_start = dev_trans_start(slave->dev); in bond_ab_arp_inspect()
3162 if (bond_is_active_slave(slave) && in bond_ab_arp_inspect()
3165 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_ab_arp_inspect()
3174 * active-backup mode ARP monitor.
3182 struct slave *slave; in bond_ab_arp_commit() local
3184 bond_for_each_slave(bond, slave, iter) { in bond_ab_arp_commit()
3185 switch (slave->link_new_state) { in bond_ab_arp_commit()
3190 trans_start = dev_trans_start(slave->dev); in bond_ab_arp_commit()
3191 if (rtnl_dereference(bond->curr_active_slave) != slave || in bond_ab_arp_commit()
3192 (!rtnl_dereference(bond->curr_active_slave) && in bond_ab_arp_commit()
3194 struct slave *current_arp_slave; in bond_ab_arp_commit()
3196 current_arp_slave = rtnl_dereference(bond->current_arp_slave); in bond_ab_arp_commit()
3197 bond_set_slave_link_state(slave, BOND_LINK_UP, in bond_ab_arp_commit()
3203 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3206 slave_info(bond->dev, slave->dev, "link status definitely up\n"); in bond_ab_arp_commit()
3208 if (!rtnl_dereference(bond->curr_active_slave) || in bond_ab_arp_commit()
3209 slave == rtnl_dereference(bond->primary_slave)) in bond_ab_arp_commit()
3217 if (slave->link_failure_count < UINT_MAX) in bond_ab_arp_commit()
3218 slave->link_failure_count++; in bond_ab_arp_commit()
3220 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_ab_arp_commit()
3222 bond_set_slave_inactive_flags(slave, in bond_ab_arp_commit()
3225 slave_info(bond->dev, slave->dev, "link status definitely down, disabling slave\n"); in bond_ab_arp_commit()
3227 if (slave == rtnl_dereference(bond->curr_active_slave)) { in bond_ab_arp_commit()
3228 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3235 bond_set_slave_link_state(slave, BOND_LINK_FAIL, in bond_ab_arp_commit()
3237 bond_set_slave_inactive_flags(slave, in bond_ab_arp_commit()
3240 /* A slave has just been enslaved and has become in bond_ab_arp_commit()
3241 * the current active slave. in bond_ab_arp_commit()
3243 if (rtnl_dereference(bond->curr_active_slave)) in bond_ab_arp_commit()
3244 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3248 slave_err(bond->dev, slave->dev, in bond_ab_arp_commit()
3249 "impossible: link_new_state %d on slave\n", in bond_ab_arp_commit()
3250 slave->link_new_state); in bond_ab_arp_commit()
3263 /* Send ARP probes for active-backup mode ARP monitor.
3269 struct slave *slave, *before = NULL, *new_slave = NULL, in bond_ab_arp_probe() local
3270 *curr_arp_slave = rcu_dereference(bond->current_arp_slave), in bond_ab_arp_probe()
3271 *curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_ab_arp_probe()
3277 netdev_info(bond->dev, "PROBE: c_arp %s && cas %s BAD\n", in bond_ab_arp_probe()
3278 curr_arp_slave->dev->name, in bond_ab_arp_probe()
3279 curr_active_slave->dev->name); in bond_ab_arp_probe()
3287 * backup slave from the current_arp_slave and make it the candidate in bond_ab_arp_probe()
3297 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_probe()
3298 if (!found && !before && bond_slave_is_up(slave)) in bond_ab_arp_probe()
3299 before = slave; in bond_ab_arp_probe()
3301 if (found && !new_slave && bond_slave_is_up(slave)) in bond_ab_arp_probe()
3302 new_slave = slave; in bond_ab_arp_probe()
3304 * mark it down - this can happen if we have in bond_ab_arp_probe()
3307 * one the current slave so it is still marked in bond_ab_arp_probe()
3310 if (!bond_slave_is_up(slave) && slave->link == BOND_LINK_UP) { in bond_ab_arp_probe()
3311 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_ab_arp_probe()
3313 if (slave->link_failure_count < UINT_MAX) in bond_ab_arp_probe()
3314 slave->link_failure_count++; in bond_ab_arp_probe()
3316 bond_set_slave_inactive_flags(slave, in bond_ab_arp_probe()
3319 slave_info(bond->dev, slave->dev, "backup interface is now down\n"); in bond_ab_arp_probe()
3321 if (slave == curr_arp_slave) in bond_ab_arp_probe()
3335 new_slave->last_link_up = jiffies; in bond_ab_arp_probe()
3336 rcu_assign_pointer(bond->current_arp_slave, new_slave); in bond_ab_arp_probe()
3339 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_probe()
3340 if (slave->should_notify || slave->should_notify_link) { in bond_ab_arp_probe()
3354 delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval); in bond_activebackup_arp_mon()
3383 if (bond->params.arp_interval) in bond_activebackup_arp_mon()
3384 queue_delayed_work(bond->wq, &bond->arp_work, delta_in_ticks); in bond_activebackup_arp_mon()
3391 bond->send_peer_notif--; in bond_activebackup_arp_mon()
3393 bond->dev); in bond_activebackup_arp_mon()
3415 /*-------------------------- netdev event handling --------------------------*/
3457 struct slave *slave = bond_slave_get_rtnl(slave_dev), *primary; in bond_slave_netdev_event() local
3463 * slave will be NULL in bond_slave_netdev_event()
3465 if (!slave) { in bond_slave_netdev_event()
3466 netdev_dbg(slave_dev, "%s called on NULL slave\n", __func__); in bond_slave_netdev_event()
3470 bond_dev = slave->bond->dev; in bond_slave_netdev_event()
3471 bond = slave->bond; in bond_slave_netdev_event()
3472 primary = rtnl_dereference(bond->primary_slave); in bond_slave_netdev_event()
3478 if (bond_dev->type != ARPHRD_ETHER) in bond_slave_netdev_event()
3486 * Getting invalid Speed/Duplex values here will put slave in bond_slave_netdev_event()
3487 * in weird state. Mark it as link-fail if the link was in bond_slave_netdev_event()
3488 * previously up or link-down if it hasn't yet come up, and in bond_slave_netdev_event()
3489 * let link-monitoring (miimon) set it right when correct in bond_slave_netdev_event()
3492 if (bond_update_speed_duplex(slave) && in bond_slave_netdev_event()
3494 if (slave->last_link_up) in bond_slave_netdev_event()
3495 slave->link = BOND_LINK_FAIL; in bond_slave_netdev_event()
3497 slave->link = BOND_LINK_DOWN; in bond_slave_netdev_event()
3501 bond_3ad_adapter_speed_duplex_changed(slave); in bond_slave_netdev_event()
3504 /* Refresh slave-array if applicable! in bond_slave_netdev_event()
3505 * If the setup does not use miimon or arpmon (mode-specific!), in bond_slave_netdev_event()
3506 * then these events will not cause the slave-array to be in bond_slave_netdev_event()
3507 * refreshed. This will cause xmit to use a slave that is not in bond_slave_netdev_event()
3518 * an active-backup bond, slaves need in bond_slave_netdev_event()
3523 * take over the slave's change_mtu in bond_slave_netdev_event()
3531 !bond->params.primary[0]) in bond_slave_netdev_event()
3534 if (slave == primary) { in bond_slave_netdev_event()
3535 /* slave's name changed - he's no longer primary */ in bond_slave_netdev_event()
3536 RCU_INIT_POINTER(bond->primary_slave, NULL); in bond_slave_netdev_event()
3537 } else if (!strcmp(slave_dev->name, bond->params.primary)) { in bond_slave_netdev_event()
3538 /* we have a new primary slave */ in bond_slave_netdev_event()
3539 rcu_assign_pointer(bond->primary_slave, slave); in bond_slave_netdev_event()
3540 } else { /* we didn't change primary - exit */ in bond_slave_netdev_event()
3544 netdev_info(bond->dev, "Primary slave changed to %s, reselecting active slave\n", in bond_slave_netdev_event()
3545 primary ? slave_dev->name : "none"); in bond_slave_netdev_event()
3552 if (!bond->notifier_ctx) { in bond_slave_netdev_event()
3553 bond->notifier_ctx = true; in bond_slave_netdev_event()
3555 bond->notifier_ctx = false; in bond_slave_netdev_event()
3560 call_netdevice_notifiers(event, slave->bond->dev); in bond_slave_netdev_event()
3573 * locks for us to safely manipulate the slave devices (RTNL lock,
3584 if (!(event_dev->priv_flags & IFF_BONDING)) in bond_netdev_event()
3587 if (event_dev->flags & IFF_MASTER) { in bond_netdev_event()
3595 if (event_dev->flags & IFF_SLAVE) in bond_netdev_event()
3605 /*---------------------------- Hashing Policies -----------------------------*/
3614 return ep->h_dest[5] ^ ep->h_source[5] ^ ep->h_proto; in bond_eth_hash()
3624 if (skb->protocol == htons(ETH_P_IP)) { in bond_flow_ip()
3627 iph = (const struct iphdr *)(skb->data + *noff); in bond_flow_ip()
3629 *noff += iph->ihl << 2; in bond_flow_ip()
3631 *proto = iph->protocol; in bond_flow_ip()
3632 } else if (skb->protocol == htons(ETH_P_IPV6)) { in bond_flow_ip()
3635 iph6 = (const struct ipv6hdr *)(skb->data + *noff); in bond_flow_ip()
3638 *proto = iph6->nexthdr; in bond_flow_ip()
3644 fk->ports.ports = skb_flow_get_ports(skb, *noff, *proto); in bond_flow_ip()
3653 bool l34 = bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34; in bond_flow_dissect()
3654 int noff, proto = -1; in bond_flow_dissect()
3656 if (bond->params.xmit_policy > BOND_XMIT_POLICY_LAYER23) { in bond_flow_dissect()
3662 fk->ports.ports = 0; in bond_flow_dissect()
3663 memset(&fk->icmp, 0, sizeof(fk->icmp)); in bond_flow_dissect()
3674 skb_flow_get_icmp_tci(skb, &fk->icmp, skb->data, in bond_flow_dissect()
3678 if (!icmp_is_err(fk->icmp.type)) in bond_flow_dissect()
3683 if (!icmpv6_is_err(fk->icmp.type)) in bond_flow_dissect()
3695 * bond_xmit_hash - generate a hash value based on the xmit policy
3707 if (bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP34 && in bond_xmit_hash()
3708 skb->l4_hash) in bond_xmit_hash()
3709 return skb->hash; in bond_xmit_hash()
3711 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER2 || in bond_xmit_hash()
3715 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER23 || in bond_xmit_hash()
3716 bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP23) { in bond_xmit_hash()
3732 /*-------------------------- Device entry points ----------------------------*/
3736 INIT_DELAYED_WORK(&bond->mcast_work, in bond_work_init_all()
3738 INIT_DELAYED_WORK(&bond->alb_work, bond_alb_monitor); in bond_work_init_all()
3739 INIT_DELAYED_WORK(&bond->mii_work, bond_mii_monitor); in bond_work_init_all()
3740 INIT_DELAYED_WORK(&bond->arp_work, bond_arp_monitor); in bond_work_init_all()
3741 INIT_DELAYED_WORK(&bond->ad_work, bond_3ad_state_machine_handler); in bond_work_init_all()
3742 INIT_DELAYED_WORK(&bond->slave_arr_work, bond_slave_arr_handler); in bond_work_init_all()
3747 cancel_delayed_work_sync(&bond->mii_work); in bond_work_cancel_all()
3748 cancel_delayed_work_sync(&bond->arp_work); in bond_work_cancel_all()
3749 cancel_delayed_work_sync(&bond->alb_work); in bond_work_cancel_all()
3750 cancel_delayed_work_sync(&bond->ad_work); in bond_work_cancel_all()
3751 cancel_delayed_work_sync(&bond->mcast_work); in bond_work_cancel_all()
3752 cancel_delayed_work_sync(&bond->slave_arr_work); in bond_work_cancel_all()
3759 struct slave *slave; in bond_open() local
3761 /* reset slave->backup and slave->inactive */ in bond_open()
3763 bond_for_each_slave(bond, slave, iter) { in bond_open()
3765 slave != rcu_access_pointer(bond->curr_active_slave)) { in bond_open()
3766 bond_set_slave_inactive_flags(slave, in bond_open()
3769 bond_set_slave_active_flags(slave, in bond_open()
3780 return -ENOMEM; in bond_open()
3781 if (bond->params.tlb_dynamic_lb || BOND_MODE(bond) == BOND_MODE_ALB) in bond_open()
3782 queue_delayed_work(bond->wq, &bond->alb_work, 0); in bond_open()
3785 if (bond->params.miimon) /* link check interval, in milliseconds. */ in bond_open()
3786 queue_delayed_work(bond->wq, &bond->mii_work, 0); in bond_open()
3788 if (bond->params.arp_interval) { /* arp interval, in milliseconds. */ in bond_open()
3789 queue_delayed_work(bond->wq, &bond->arp_work, 0); in bond_open()
3790 bond->recv_probe = bond_arp_rcv; in bond_open()
3794 queue_delayed_work(bond->wq, &bond->ad_work, 0); in bond_open()
3796 bond->recv_probe = bond_3ad_lacpdu_recv; in bond_open()
3799 bond_for_each_slave(bond, slave, iter) in bond_open()
3800 dev_mc_add(slave->dev, lacpdu_mcast_addr); in bond_open()
3812 struct slave *slave; in bond_close() local
3815 bond->send_peer_notif = 0; in bond_close()
3818 bond->recv_probe = NULL; in bond_close()
3822 slave = rcu_dereference(bond->curr_active_slave); in bond_close()
3823 if (slave) in bond_close()
3824 bond_hw_addr_flush(bond_dev, slave->dev); in bond_close()
3829 bond_for_each_slave(bond, slave, iter) in bond_close()
3830 bond_hw_addr_flush(bond_dev, slave->dev); in bond_close()
3851 s64 delta = nv - ov; in bond_fold_stats()
3855 delta = (s64)(s32)((u32)nv - (u32)ov); in bond_fold_stats()
3866 static int bond_get_lowest_level_rcu(struct net_device *dev) in bond_get_lowest_level_rcu() argument
3872 now = dev; in bond_get_lowest_level_rcu()
3873 iter = &dev->adj_list.lower; in bond_get_lowest_level_rcu()
3883 niter = &ldev->adj_list.lower; in bond_get_lowest_level_rcu()
3894 next = dev_stack[--cur]; in bond_get_lowest_level_rcu()
3912 struct slave *slave; in bond_get_stats() local
3921 spin_lock_nested(&bond->stats_lock, nest_level); in bond_get_stats()
3922 memcpy(stats, &bond->bond_stats, sizeof(*stats)); in bond_get_stats()
3924 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_stats()
3926 dev_get_stats(slave->dev, &temp); in bond_get_stats()
3928 bond_fold_stats(stats, new, &slave->slave_stats); in bond_get_stats()
3930 /* save off the slave stats for the next run */ in bond_get_stats()
3931 memcpy(&slave->slave_stats, new, sizeof(*new)); in bond_get_stats()
3934 memcpy(&bond->bond_stats, stats, sizeof(*stats)); in bond_get_stats()
3935 spin_unlock(&bond->stats_lock); in bond_get_stats()
3958 return -EINVAL; in bond_do_ioctl()
3960 mii->phy_id = 0; in bond_do_ioctl()
3968 return -EINVAL; in bond_do_ioctl()
3970 if (mii->reg_num == 1) { in bond_do_ioctl()
3971 mii->val_out = 0; in bond_do_ioctl()
3972 if (netif_carrier_ok(bond->dev)) in bond_do_ioctl()
3973 mii->val_out = BMSR_LSTATUS; in bond_do_ioctl()
3979 u_binfo = (struct ifbond __user *)ifr->ifr_data; in bond_do_ioctl()
3982 return -EFAULT; in bond_do_ioctl()
3986 return -EFAULT; in bond_do_ioctl()
3991 u_sinfo = (struct ifslave __user *)ifr->ifr_data; in bond_do_ioctl()
3994 return -EFAULT; in bond_do_ioctl()
3999 return -EFAULT; in bond_do_ioctl()
4008 if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) in bond_do_ioctl()
4009 return -EPERM; in bond_do_ioctl()
4011 slave_dev = __dev_get_by_name(net, ifr->ifr_slave); in bond_do_ioctl()
4016 return -ENODEV; in bond_do_ioctl()
4033 bond_opt_initstr(&newval, slave_dev->name); in bond_do_ioctl()
4038 res = -EOPNOTSUPP; in bond_do_ioctl()
4050 bond_dev->flags & IFF_PROMISC ? 1 : -1); in bond_change_rx_flags()
4054 bond_dev->flags & IFF_ALLMULTI ? 1 : -1); in bond_change_rx_flags()
4061 struct slave *slave; in bond_set_rx_mode() local
4065 slave = rcu_dereference(bond->curr_active_slave); in bond_set_rx_mode()
4066 if (slave) { in bond_set_rx_mode()
4067 dev_uc_sync(slave->dev, bond_dev); in bond_set_rx_mode()
4068 dev_mc_sync(slave->dev, bond_dev); in bond_set_rx_mode()
4071 bond_for_each_slave_rcu(bond, slave, iter) { in bond_set_rx_mode()
4072 dev_uc_sync_multiple(slave->dev, bond_dev); in bond_set_rx_mode()
4073 dev_mc_sync_multiple(slave->dev, bond_dev); in bond_set_rx_mode()
4081 struct bonding *bond = netdev_priv(n->dev); in bond_neigh_init()
4084 struct slave *slave; in bond_neigh_init() local
4088 slave = bond_first_slave_rcu(bond); in bond_neigh_init()
4089 if (!slave) in bond_neigh_init()
4091 slave_ops = slave->dev->netdev_ops; in bond_neigh_init()
4092 if (!slave_ops->ndo_neigh_setup) in bond_neigh_init()
4104 ret = slave_ops->ndo_neigh_setup(slave->dev, &parms); in bond_neigh_init()
4117 * slave exists. So we must declare proxy setup function which will
4118 * be used at run time to resolve the actual slave neigh param setup.
4121 * underlying devices. In that case - do nothing, we're already set up from
4124 static int bond_neigh_setup(struct net_device *dev, in bond_neigh_setup() argument
4128 if (parms->dev == dev) in bond_neigh_setup()
4129 parms->neigh_setup = bond_neigh_init; in bond_neigh_setup()
4138 struct slave *slave, *rollback_slave; in bond_change_mtu() local
4144 bond_for_each_slave(bond, slave, iter) { in bond_change_mtu()
4145 slave_dbg(bond_dev, slave->dev, "s %p c_m %p\n", in bond_change_mtu()
4146 slave, slave->dev->netdev_ops->ndo_change_mtu); in bond_change_mtu()
4148 res = dev_set_mtu(slave->dev, new_mtu); in bond_change_mtu()
4151 /* If we failed to set the slave's mtu to the new value in bond_change_mtu()
4154 * different mtu values than the active slave we'll in bond_change_mtu()
4159 slave_dbg(bond_dev, slave->dev, "err %d setting mtu to %d\n", in bond_change_mtu()
4165 bond_dev->mtu = new_mtu; in bond_change_mtu()
4170 /* unwind from head to the slave that failed */ in bond_change_mtu()
4174 if (rollback_slave == slave) in bond_change_mtu()
4177 tmp_res = dev_set_mtu(rollback_slave->dev, bond_dev->mtu); in bond_change_mtu()
4179 slave_dbg(bond_dev, rollback_slave->dev, "unwind err %d\n", in bond_change_mtu()
4195 struct slave *slave, *rollback_slave; in bond_set_mac_address() local
4209 if (bond->params.fail_over_mac && in bond_set_mac_address()
4213 if (!is_valid_ether_addr(ss->__data)) in bond_set_mac_address()
4214 return -EADDRNOTAVAIL; in bond_set_mac_address()
4216 bond_for_each_slave(bond, slave, iter) { in bond_set_mac_address()
4217 slave_dbg(bond_dev, slave->dev, "%s: slave=%p\n", in bond_set_mac_address()
4218 __func__, slave); in bond_set_mac_address()
4219 res = dev_set_mac_address(slave->dev, addr, NULL); in bond_set_mac_address()
4221 /* TODO: consider downing the slave in bond_set_mac_address()
4227 slave_dbg(bond_dev, slave->dev, "%s: err %d\n", in bond_set_mac_address()
4234 memcpy(bond_dev->dev_addr, ss->__data, bond_dev->addr_len); in bond_set_mac_address()
4238 memcpy(tmp_ss.__data, bond_dev->dev_addr, bond_dev->addr_len); in bond_set_mac_address()
4239 tmp_ss.ss_family = bond_dev->type; in bond_set_mac_address()
4241 /* unwind from head to the slave that failed */ in bond_set_mac_address()
4245 if (rollback_slave == slave) in bond_set_mac_address()
4248 tmp_res = dev_set_mac_address(rollback_slave->dev, in bond_set_mac_address()
4251 slave_dbg(bond_dev, rollback_slave->dev, "%s: unwind err %d\n", in bond_set_mac_address()
4260 * bond_get_slave_by_id - get xmit slave with slave_id
4262 * @slave_id: slave id up to slave_cnt-1 through which to transmit
4264 * This function tries to get slave with slave_id but in case
4265 * it fails, it tries to find the first available slave for transmission.
4267 static struct slave *bond_get_slave_by_id(struct bonding *bond, in bond_get_slave_by_id()
4271 struct slave *slave; in bond_get_slave_by_id() local
4274 /* Here we start from the slave with slave_id */ in bond_get_slave_by_id()
4275 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_slave_by_id()
4276 if (--i < 0) { in bond_get_slave_by_id()
4277 if (bond_slave_can_tx(slave)) in bond_get_slave_by_id()
4278 return slave; in bond_get_slave_by_id()
4282 /* Here we start from the first slave up to slave_id */ in bond_get_slave_by_id()
4284 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_slave_by_id()
4285 if (--i < 0) in bond_get_slave_by_id()
4287 if (bond_slave_can_tx(slave)) in bond_get_slave_by_id()
4288 return slave; in bond_get_slave_by_id()
4290 /* no slave that can tx has been found */ in bond_get_slave_by_id()
4295 * bond_rr_gen_slave_id - generate slave id based on packets_per_slave
4299 * this function generates a slave id, which is usually used as the next
4300 * slave to transmit through.
4306 int packets_per_slave = bond->params.packets_per_slave; in bond_rr_gen_slave_id()
4313 slave_id = bond->rr_tx_counter; in bond_rr_gen_slave_id()
4317 bond->params.reciprocal_packets_per_slave; in bond_rr_gen_slave_id()
4318 slave_id = reciprocal_divide(bond->rr_tx_counter, in bond_rr_gen_slave_id()
4322 bond->rr_tx_counter++; in bond_rr_gen_slave_id()
4327 static struct slave *bond_xmit_roundrobin_slave_get(struct bonding *bond, in bond_xmit_roundrobin_slave_get()
4330 struct slave *slave; in bond_xmit_roundrobin_slave_get() local
4340 if (skb->protocol == htons(ETH_P_IP)) { in bond_xmit_roundrobin_slave_get()
4348 if (iph->protocol == IPPROTO_IGMP) { in bond_xmit_roundrobin_slave_get()
4349 slave = rcu_dereference(bond->curr_active_slave); in bond_xmit_roundrobin_slave_get()
4350 if (slave) in bond_xmit_roundrobin_slave_get()
4351 return slave; in bond_xmit_roundrobin_slave_get()
4357 slave_cnt = READ_ONCE(bond->slave_cnt); in bond_xmit_roundrobin_slave_get()
4369 struct slave *slave; in bond_xmit_roundrobin() local
4371 slave = bond_xmit_roundrobin_slave_get(bond, skb); in bond_xmit_roundrobin()
4372 if (likely(slave)) in bond_xmit_roundrobin()
4373 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_xmit_roundrobin()
4378 static struct slave *bond_xmit_activebackup_slave_get(struct bonding *bond, in bond_xmit_activebackup_slave_get()
4381 return rcu_dereference(bond->curr_active_slave); in bond_xmit_activebackup_slave_get()
4384 /* In active-backup mode, we know that bond->curr_active_slave is always valid if
4391 struct slave *slave; in bond_xmit_activebackup() local
4393 slave = bond_xmit_activebackup_slave_get(bond, skb); in bond_xmit_activebackup()
4394 if (slave) in bond_xmit_activebackup()
4395 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_xmit_activebackup()
4406 queue_delayed_work(bond->wq, &bond->slave_arr_work, delay); in bond_slave_arr_work_rearm()
4409 /* Slave array work handler. Holds only RTNL */
4422 pr_warn_ratelimited("Failed to update slave array from WT\n"); in bond_slave_arr_handler()
4432 struct slave *skipslave) in bond_skip_slave()
4437 * slave but allocation failed (most likely!). BTW this is in bond_skip_slave()
4442 * this to-be-skipped slave to send a packet out. in bond_skip_slave()
4444 for (idx = 0; slaves && idx < slaves->count; idx++) { in bond_skip_slave()
4445 if (skipslave == slaves->arr[idx]) { in bond_skip_slave()
4446 slaves->arr[idx] = in bond_skip_slave()
4447 slaves->arr[slaves->count - 1]; in bond_skip_slave()
4448 slaves->count--; in bond_skip_slave()
4460 usable = rtnl_dereference(bond->usable_slaves); in bond_set_slave_arr()
4461 rcu_assign_pointer(bond->usable_slaves, usable_slaves); in bond_set_slave_arr()
4464 all = rtnl_dereference(bond->all_slaves); in bond_set_slave_arr()
4465 rcu_assign_pointer(bond->all_slaves, all_slaves); in bond_set_slave_arr()
4473 usable = rtnl_dereference(bond->usable_slaves); in bond_reset_slave_arr()
4475 RCU_INIT_POINTER(bond->usable_slaves, NULL); in bond_reset_slave_arr()
4479 all = rtnl_dereference(bond->all_slaves); in bond_reset_slave_arr()
4481 RCU_INIT_POINTER(bond->all_slaves, NULL); in bond_reset_slave_arr()
4486 /* Build the usable slaves array in control path for modes that use xmit-hash
4487 * to determine the slave interface -
4494 int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) in bond_update_slave_arr()
4497 struct slave *slave; in bond_update_slave_arr() local
4503 WARN_ON(lockdep_is_held(&bond->mode_lock)); in bond_update_slave_arr()
4507 bond->slave_cnt), GFP_KERNEL); in bond_update_slave_arr()
4509 bond->slave_cnt), GFP_KERNEL); in bond_update_slave_arr()
4511 ret = -ENOMEM; in bond_update_slave_arr()
4527 bond_for_each_slave(bond, slave, iter) { in bond_update_slave_arr()
4528 if (skipslave == slave) in bond_update_slave_arr()
4531 all_slaves->arr[all_slaves->count++] = slave; in bond_update_slave_arr()
4535 agg = SLAVE_AD_INFO(slave)->port.aggregator; in bond_update_slave_arr()
4536 if (!agg || agg->aggregator_identifier != agg_id) in bond_update_slave_arr()
4539 if (!bond_slave_can_tx(slave)) in bond_update_slave_arr()
4542 slave_dbg(bond->dev, slave->dev, "Adding slave to tx hash array[%d]\n", in bond_update_slave_arr()
4543 usable_slaves->count); in bond_update_slave_arr()
4545 usable_slaves->arr[usable_slaves->count++] = slave; in bond_update_slave_arr()
4552 bond_skip_slave(rtnl_dereference(bond->all_slaves), in bond_update_slave_arr()
4554 bond_skip_slave(rtnl_dereference(bond->usable_slaves), in bond_update_slave_arr()
4563 static struct slave *bond_xmit_3ad_xor_slave_get(struct bonding *bond, in bond_xmit_3ad_xor_slave_get()
4567 struct slave *slave; in bond_xmit_3ad_xor_slave_get() local
4572 count = slaves ? READ_ONCE(slaves->count) : 0; in bond_xmit_3ad_xor_slave_get()
4576 slave = slaves->arr[hash % count]; in bond_xmit_3ad_xor_slave_get()
4577 return slave; in bond_xmit_3ad_xor_slave_get()
4581 * usable slave array is formed in the control path. The xmit function
4585 struct net_device *dev) in bond_3ad_xor_xmit() argument
4587 struct bonding *bond = netdev_priv(dev); in bond_3ad_xor_xmit()
4589 struct slave *slave; in bond_3ad_xor_xmit() local
4591 slaves = rcu_dereference(bond->usable_slaves); in bond_3ad_xor_xmit()
4592 slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves); in bond_3ad_xor_xmit()
4593 if (likely(slave)) in bond_3ad_xor_xmit()
4594 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_3ad_xor_xmit()
4596 return bond_tx_drop(dev, skb); in bond_3ad_xor_xmit()
4604 struct slave *slave = NULL; in bond_xmit_broadcast() local
4609 bond_for_each_slave_rcu(bond, slave, iter) { in bond_xmit_broadcast()
4612 if (!(bond_slave_is_up(slave) && slave->link == BOND_LINK_UP)) in bond_xmit_broadcast()
4615 if (bond_is_last_slave(bond, slave)) { in bond_xmit_broadcast()
4622 bond_dev->name, __func__); in bond_xmit_broadcast()
4627 if (bond_dev_queue_xmit(bond, skb2, slave->dev) == NETDEV_TX_OK) in bond_xmit_broadcast()
4637 atomic_long_inc(&bond_dev->tx_dropped); in bond_xmit_broadcast()
4641 /*------------------------- Device initialization ---------------------------*/
4643 /* Lookup the slave that corresponds to a qid */
4647 struct slave *slave = NULL; in bond_slave_override() local
4654 bond_for_each_slave_rcu(bond, slave, iter) { in bond_slave_override()
4655 if (slave->queue_id == skb_get_queue_mapping(skb)) { in bond_slave_override()
4656 if (bond_slave_is_up(slave) && in bond_slave_override()
4657 slave->link == BOND_LINK_UP) { in bond_slave_override()
4658 bond_dev_queue_xmit(bond, skb, slave->dev); in bond_slave_override()
4661 /* If the slave isn't UP, use default transmit policy. */ in bond_slave_override()
4670 static u16 bond_select_queue(struct net_device *dev, struct sk_buff *skb, in bond_select_queue() argument
4681 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb_get_queue_mapping(skb); in bond_select_queue()
4683 if (unlikely(txq >= dev->real_num_tx_queues)) { in bond_select_queue()
4685 txq -= dev->real_num_tx_queues; in bond_select_queue()
4686 } while (txq >= dev->real_num_tx_queues); in bond_select_queue()
4697 struct slave *slave = NULL; in bond_xmit_get_slave() local
4701 slave = bond_xmit_roundrobin_slave_get(bond, skb); in bond_xmit_get_slave()
4704 slave = bond_xmit_activebackup_slave_get(bond, skb); in bond_xmit_get_slave()
4709 slaves = rcu_dereference(bond->all_slaves); in bond_xmit_get_slave()
4711 slaves = rcu_dereference(bond->usable_slaves); in bond_xmit_get_slave()
4712 slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves); in bond_xmit_get_slave()
4717 slave = bond_xmit_alb_slave_get(bond, skb); in bond_xmit_get_slave()
4720 slave = bond_xmit_tlb_slave_get(bond, skb); in bond_xmit_get_slave()
4728 if (slave) in bond_xmit_get_slave()
4729 return slave->dev; in bond_xmit_get_slave()
4733 static netdev_tx_t __bond_start_xmit(struct sk_buff *skb, struct net_device *dev) in __bond_start_xmit() argument
4735 struct bonding *bond = netdev_priv(dev); in __bond_start_xmit()
4743 return bond_xmit_roundrobin(skb, dev); in __bond_start_xmit()
4745 return bond_xmit_activebackup(skb, dev); in __bond_start_xmit()
4748 return bond_3ad_xor_xmit(skb, dev); in __bond_start_xmit()
4750 return bond_xmit_broadcast(skb, dev); in __bond_start_xmit()
4752 return bond_alb_xmit(skb, dev); in __bond_start_xmit()
4754 return bond_tlb_xmit(skb, dev); in __bond_start_xmit()
4757 netdev_err(dev, "Unknown bonding mode %d\n", BOND_MODE(bond)); in __bond_start_xmit()
4759 return bond_tx_drop(dev, skb); in __bond_start_xmit()
4763 static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev) in bond_start_xmit() argument
4765 struct bonding *bond = netdev_priv(dev); in bond_start_xmit()
4771 if (unlikely(is_netpoll_tx_blocked(dev))) in bond_start_xmit()
4776 ret = __bond_start_xmit(skb, dev); in bond_start_xmit()
4778 ret = bond_tx_drop(dev, skb); in bond_start_xmit()
4784 static u32 bond_mode_bcast_speed(struct slave *slave, u32 speed) in bond_mode_bcast_speed() argument
4787 speed = slave->speed; in bond_mode_bcast_speed()
4789 speed = min(speed, slave->speed); in bond_mode_bcast_speed()
4799 struct slave *slave; in bond_ethtool_get_link_ksettings() local
4802 cmd->base.duplex = DUPLEX_UNKNOWN; in bond_ethtool_get_link_ksettings()
4803 cmd->base.port = PORT_OTHER; in bond_ethtool_get_link_ksettings()
4810 bond_for_each_slave(bond, slave, iter) { in bond_ethtool_get_link_ksettings()
4811 if (bond_slave_can_tx(slave)) { in bond_ethtool_get_link_ksettings()
4812 if (slave->speed != SPEED_UNKNOWN) { in bond_ethtool_get_link_ksettings()
4814 speed = bond_mode_bcast_speed(slave, in bond_ethtool_get_link_ksettings()
4817 speed += slave->speed; in bond_ethtool_get_link_ksettings()
4819 if (cmd->base.duplex == DUPLEX_UNKNOWN && in bond_ethtool_get_link_ksettings()
4820 slave->duplex != DUPLEX_UNKNOWN) in bond_ethtool_get_link_ksettings()
4821 cmd->base.duplex = slave->duplex; in bond_ethtool_get_link_ksettings()
4824 cmd->base.speed = speed ? : SPEED_UNKNOWN; in bond_ethtool_get_link_ksettings()
4832 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); in bond_ethtool_get_drvinfo()
4833 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d", in bond_ethtool_get_drvinfo()
4878 if (bond->wq) in bond_destructor()
4879 destroy_workqueue(bond->wq); in bond_destructor()
4886 spin_lock_init(&bond->mode_lock); in bond_setup()
4887 bond->params = bonding_defaults; in bond_setup()
4890 bond->dev = bond_dev; in bond_setup()
4894 bond_dev->max_mtu = ETH_MAX_MTU; in bond_setup()
4895 bond_dev->netdev_ops = &bond_netdev_ops; in bond_setup()
4896 bond_dev->ethtool_ops = &bond_ethtool_ops; in bond_setup()
4898 bond_dev->needs_free_netdev = true; in bond_setup()
4899 bond_dev->priv_destructor = bond_destructor; in bond_setup()
4904 bond_dev->flags |= IFF_MASTER; in bond_setup()
4905 bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT | IFF_NO_QUEUE; in bond_setup()
4906 bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); in bond_setup()
4909 /* set up xfrm device ops (only supported in active-backup right now) */ in bond_setup()
4910 bond_dev->xfrmdev_ops = &bond_xfrmdev_ops; in bond_setup()
4911 INIT_LIST_HEAD(&bond->ipsec_list); in bond_setup()
4912 spin_lock_init(&bond->ipsec_lock); in bond_setup()
4916 bond_dev->features |= NETIF_F_LLTX; in bond_setup()
4926 bond_dev->features |= NETIF_F_NETNS_LOCAL; in bond_setup()
4928 bond_dev->hw_features = BOND_VLAN_FEATURES | in bond_setup()
4934 bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4; in bond_setup()
4936 bond_dev->hw_features |= BOND_XFRM_FEATURES; in bond_setup()
4938 bond_dev->features |= bond_dev->hw_features; in bond_setup()
4939 bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; in bond_setup()
4941 /* Disable XFRM features if this isn't an active-backup config */ in bond_setup()
4943 bond_dev->features &= ~BOND_XFRM_FEATURES; in bond_setup()
4955 struct slave *slave; in bond_uninit() local
4960 bond_for_each_slave(bond, slave, iter) in bond_uninit()
4961 __bond_release_one(bond_dev, slave->dev, true, true); in bond_uninit()
4964 usable = rtnl_dereference(bond->usable_slaves); in bond_uninit()
4966 RCU_INIT_POINTER(bond->usable_slaves, NULL); in bond_uninit()
4970 all = rtnl_dereference(bond->all_slaves); in bond_uninit()
4972 RCU_INIT_POINTER(bond->all_slaves, NULL); in bond_uninit()
4976 list_del(&bond->bond_list); in bond_uninit()
4981 /*------------------------- Module initialization ---------------------------*/
5004 return -EINVAL; in bond_check_params()
5006 bond_mode = valptr->value; in bond_check_params()
5022 return -EINVAL; in bond_check_params()
5024 xmit_hashtype = valptr->value; in bond_check_params()
5039 return -EINVAL; in bond_check_params()
5041 lacp_fast = valptr->value; in bond_check_params()
5051 return -EINVAL; in bond_check_params()
5053 params->ad_select = valptr->value; in bond_check_params()
5057 params->ad_select = BOND_AD_STABLE; in bond_check_params()
5061 …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()
5067 pr_warn("Warning: miimon module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
5073 pr_warn("Warning: updelay module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
5079 pr_warn("Warning: downdelay module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
5091 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()
5168 pr_warn("Warning: arp_interval module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
5178 if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) || in bond_check_params()
5184 if (bond_get_targets_ip(arp_target, ip) == -1) in bond_check_params()
5202 return -EINVAL; in bond_check_params()
5211 return -EINVAL; in bond_check_params()
5213 arp_validate_value = valptr->value; in bond_check_params()
5227 arp_all_targets_value = valptr->value; in bond_check_params()
5237 arp_interval, valptr->string, arp_ip_count); in bond_check_params()
5267 return -EINVAL; in bond_check_params()
5269 primary_reselect_value = valptr->value; in bond_check_params()
5281 return -EINVAL; in bond_check_params()
5283 fail_over_mac_value = valptr->value; in bond_check_params()
5285 pr_warn("Warning: fail_over_mac only affects active-backup mode\n"); in bond_check_params()
5296 return -EINVAL; in bond_check_params()
5298 ad_actor_sys_prio = valptr->value; in bond_check_params()
5304 return -EINVAL; in bond_check_params()
5306 ad_user_port_key = valptr->value; in bond_check_params()
5312 return -EINVAL; in bond_check_params()
5314 tlb_dynamic_lb = valptr->value; in bond_check_params()
5323 params->mode = bond_mode; in bond_check_params()
5324 params->xmit_policy = xmit_hashtype; in bond_check_params()
5325 params->miimon = miimon; in bond_check_params()
5326 params->num_peer_notif = num_peer_notif; in bond_check_params()
5327 params->arp_interval = arp_interval; in bond_check_params()
5328 params->arp_validate = arp_validate_value; in bond_check_params()
5329 params->arp_all_targets = arp_all_targets_value; in bond_check_params()
5330 params->updelay = updelay; in bond_check_params()
5331 params->downdelay = downdelay; in bond_check_params()
5332 params->peer_notif_delay = 0; in bond_check_params()
5333 params->use_carrier = use_carrier; in bond_check_params()
5334 params->lacp_fast = lacp_fast; in bond_check_params()
5335 params->primary[0] = 0; in bond_check_params()
5336 params->primary_reselect = primary_reselect_value; in bond_check_params()
5337 params->fail_over_mac = fail_over_mac_value; in bond_check_params()
5338 params->tx_queues = tx_queues; in bond_check_params()
5339 params->all_slaves_active = all_slaves_active; in bond_check_params()
5340 params->resend_igmp = resend_igmp; in bond_check_params()
5341 params->min_links = min_links; in bond_check_params()
5342 params->lp_interval = lp_interval; in bond_check_params()
5343 params->packets_per_slave = packets_per_slave; in bond_check_params()
5344 params->tlb_dynamic_lb = tlb_dynamic_lb; in bond_check_params()
5345 params->ad_actor_sys_prio = ad_actor_sys_prio; in bond_check_params()
5346 eth_zero_addr(params->ad_actor_system); in bond_check_params()
5347 params->ad_user_port_key = ad_user_port_key; in bond_check_params()
5349 params->reciprocal_packets_per_slave = in bond_check_params()
5355 params->reciprocal_packets_per_slave = in bond_check_params()
5360 strncpy(params->primary, primary, IFNAMSIZ); in bond_check_params()
5361 params->primary[IFNAMSIZ - 1] = 0; in bond_check_params()
5364 memcpy(params->arp_targets, arp_target, sizeof(arp_target)); in bond_check_params()
5377 bond->wq = alloc_ordered_workqueue(bond_dev->name, WQ_MEM_RECLAIM); in bond_init()
5378 if (!bond->wq) in bond_init()
5379 return -ENOMEM; in bond_init()
5381 bond->notifier_ctx = false; in bond_init()
5383 spin_lock_init(&bond->stats_lock); in bond_init()
5386 list_add_tail(&bond->bond_list, &bn->dev_list); in bond_init()
5393 if (is_zero_ether_addr(bond_dev->dev_addr) && in bond_init()
5394 bond_dev->addr_assign_type == NET_ADDR_PERM) in bond_init()
5425 return -ENOMEM; in bond_create()
5434 bond_info->rx_hashtbl_used_head = RLB_NULL_INDEX; in bond_create()
5437 bond_dev->rtnl_link_ops = &bond_link_ops; in bond_create()
5459 bn->net = net; in bond_net_init()
5460 INIT_LIST_HEAD(&bn->dev_list); in bond_net_init()
5478 list_for_each_entry_safe(bond, tmp_bond, &bn->dev_list, bond_list) in bond_net_exit()
5479 unregister_netdevice_queue(bond->dev, &list); in bond_net_exit()