Lines Matching +full:slave +full:- +full:mode
1 // SPDX-License-Identifier: GPL-1.0+
21 * the first slave bonded to the channel. All slaves will then use
28 * will attach eth0 to bond0 as a slave. eth0 hw mac address will either
98 /*---------------------------- Module parameters ----------------------------*/
109 static char *mode; variable
146 module_param(mode, charp, 0);
147 MODULE_PARM_DESC(mode, "Mode of operation; 0 for balance-rr, "
148 "1 for active-backup, 2 for balance-xor, "
149 "3 for broadcast, 4 for 802.3ad, 5 for balance-tlb, "
150 "6 for balance-alb");
154 MODULE_PARM_DESC(primary_reselect, "Reselect primary slave "
159 "2 for only on active slave "
172 MODULE_PARM_DESC(xmit_hash_policy, "balance-alb, balance-tlb, balance-xor, 802.3ad hashing method; "
187 MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to "
198 MODULE_PARM_DESC(packets_per_slave, "Packets to send per slave in balance-rr "
199 "mode; 0 for a random slave, 1 packet per "
200 "slave (default), >1 packets per slave.");
206 /*----------------------------- Global variables ----------------------------*/
261 /*-------------------------- Forward declarations ---------------------------*/
272 /*---------------------------- General routines -----------------------------*/
274 const char *bond_mode_name(int mode) in bond_mode_name() argument
277 [BOND_MODE_ROUNDROBIN] = "load balancing (round-robin)", in bond_mode_name()
278 [BOND_MODE_ACTIVEBACKUP] = "fault-tolerance (active-backup)", in bond_mode_name()
280 [BOND_MODE_BROADCAST] = "fault-tolerance (broadcast)", in bond_mode_name()
286 if (mode < BOND_MODE_ROUNDROBIN || mode > BOND_MODE_ALB) in bond_mode_name()
289 return names[mode]; in bond_mode_name()
293 * bond_dev_queue_xmit - Prepare skb for xmit.
297 * @slave_dev: slave that is supposed to xmit this skbuff
302 skb->dev = slave_dev; in bond_dev_queue_xmit()
304 BUILD_BUG_ON(sizeof(skb->queue_mapping) != in bond_dev_queue_xmit()
305 sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping)); in bond_dev_queue_xmit()
306 skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping); in bond_dev_queue_xmit()
308 if (unlikely(netpoll_tx_running(bond->dev))) in bond_dev_queue_xmit()
319 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34) in bond_sk_check()
327 bool bond_xdp_check(struct bonding *bond, int mode) in bond_xdp_check() argument
329 switch (mode) { in bond_xdp_check()
338 if (bond->params.xmit_policy != BOND_XMIT_POLICY_VLAN_SRCMAC) in bond_xdp_check()
346 /*---------------------------------- VLAN -----------------------------------*/
349 * We don't protect the slave list iteration with a lock because:
365 * bond_vlan_rx_add_vid - Propagates adding an id to slaves
374 struct slave *slave, *rollback_slave; in bond_vlan_rx_add_vid() local
378 bond_for_each_slave(bond, slave, iter) { in bond_vlan_rx_add_vid()
379 res = vlan_vid_add(slave->dev, proto, vid); in bond_vlan_rx_add_vid()
387 /* unwind to the slave that failed */ in bond_vlan_rx_add_vid()
389 if (rollback_slave == slave) in bond_vlan_rx_add_vid()
392 vlan_vid_del(rollback_slave->dev, proto, vid); in bond_vlan_rx_add_vid()
399 * bond_vlan_rx_kill_vid - Propagates deleting an id to slaves
409 struct slave *slave; in bond_vlan_rx_kill_vid() local
411 bond_for_each_slave(bond, slave, iter) in bond_vlan_rx_kill_vid()
412 vlan_vid_del(slave->dev, proto, vid); in bond_vlan_rx_kill_vid()
420 /*---------------------------------- XFRM -----------------------------------*/
424 * bond_ipsec_dev - Get active device for IPsec offload
433 struct net_device *bond_dev = xs->xso.dev; in bond_ipsec_dev()
435 struct slave *slave; in bond_ipsec_dev() local
441 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_dev()
442 if (!slave) in bond_ipsec_dev()
445 if (!xs->xso.real_dev) in bond_ipsec_dev()
448 if (xs->xso.real_dev != slave->dev) in bond_ipsec_dev()
449 pr_warn_ratelimited("%s: (slave %s): not same with IPsec offload real dev %s\n", in bond_ipsec_dev()
450 bond_dev->name, slave->dev->name, xs->xso.real_dev->name); in bond_ipsec_dev()
452 return slave->dev; in bond_ipsec_dev()
456 * bond_ipsec_add_sa - program device with a security association
469 struct slave *slave; in bond_ipsec_add_sa() local
473 return -EINVAL; in bond_ipsec_add_sa()
477 slave = rcu_dereference(bond->curr_active_slave); in bond_ipsec_add_sa()
478 real_dev = slave ? slave->dev : NULL; in bond_ipsec_add_sa()
482 err = -ENODEV; in bond_ipsec_add_sa()
486 if (!real_dev->xfrmdev_ops || in bond_ipsec_add_sa()
487 !real_dev->xfrmdev_ops->xdo_dev_state_add || in bond_ipsec_add_sa()
489 NL_SET_ERR_MSG_MOD(extack, "Slave does not support ipsec offload"); in bond_ipsec_add_sa()
490 err = -EINVAL; in bond_ipsec_add_sa()
496 err = -ENOMEM; in bond_ipsec_add_sa()
500 err = real_dev->xfrmdev_ops->xdo_dev_state_add(real_dev, xs, extack); in bond_ipsec_add_sa()
502 xs->xso.real_dev = real_dev; in bond_ipsec_add_sa()
503 ipsec->xs = xs; in bond_ipsec_add_sa()
504 INIT_LIST_HEAD(&ipsec->list); in bond_ipsec_add_sa()
505 mutex_lock(&bond->ipsec_lock); in bond_ipsec_add_sa()
506 list_add(&ipsec->list, &bond->ipsec_list); in bond_ipsec_add_sa()
507 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_add_sa()
518 struct net_device *bond_dev = bond->dev; in bond_ipsec_add_sa_all()
521 struct slave *slave; in bond_ipsec_add_sa_all() local
523 slave = rtnl_dereference(bond->curr_active_slave); in bond_ipsec_add_sa_all()
524 real_dev = slave ? slave->dev : NULL; in bond_ipsec_add_sa_all()
528 mutex_lock(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
529 if (!real_dev->xfrmdev_ops || in bond_ipsec_add_sa_all()
530 !real_dev->xfrmdev_ops->xdo_dev_state_add || in bond_ipsec_add_sa_all()
532 if (!list_empty(&bond->ipsec_list)) in bond_ipsec_add_sa_all()
534 "%s: no slave xdo_dev_state_add\n", in bond_ipsec_add_sa_all()
539 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_add_sa_all()
541 if (ipsec->xs->xso.real_dev == real_dev) in bond_ipsec_add_sa_all()
544 if (real_dev->xfrmdev_ops->xdo_dev_state_add(real_dev, in bond_ipsec_add_sa_all()
545 ipsec->xs, NULL)) { in bond_ipsec_add_sa_all()
550 spin_lock_bh(&ipsec->xs->lock); in bond_ipsec_add_sa_all()
557 if (ipsec->xs->km.state == XFRM_STATE_DEAD && in bond_ipsec_add_sa_all()
558 real_dev->xfrmdev_ops->xdo_dev_state_delete) in bond_ipsec_add_sa_all()
559 real_dev->xfrmdev_ops->xdo_dev_state_delete(real_dev, in bond_ipsec_add_sa_all()
560 ipsec->xs); in bond_ipsec_add_sa_all()
561 ipsec->xs->xso.real_dev = real_dev; in bond_ipsec_add_sa_all()
562 spin_unlock_bh(&ipsec->xs->lock); in bond_ipsec_add_sa_all()
565 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_add_sa_all()
569 * bond_ipsec_del_sa - clear out this specific SA
578 if (!bond_dev || !xs->xso.real_dev) in bond_ipsec_del_sa()
581 real_dev = xs->xso.real_dev; in bond_ipsec_del_sa()
583 if (!real_dev->xfrmdev_ops || in bond_ipsec_del_sa()
584 !real_dev->xfrmdev_ops->xdo_dev_state_delete || in bond_ipsec_del_sa()
586 slave_warn(bond_dev, real_dev, "%s: no slave xdo_dev_state_delete\n", __func__); in bond_ipsec_del_sa()
590 real_dev->xfrmdev_ops->xdo_dev_state_delete(real_dev, xs); in bond_ipsec_del_sa()
595 struct net_device *bond_dev = bond->dev; in bond_ipsec_del_sa_all()
598 struct slave *slave; in bond_ipsec_del_sa_all() local
600 slave = rtnl_dereference(bond->curr_active_slave); in bond_ipsec_del_sa_all()
601 real_dev = slave ? slave->dev : NULL; in bond_ipsec_del_sa_all()
605 mutex_lock(&bond->ipsec_lock); in bond_ipsec_del_sa_all()
606 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_del_sa_all()
607 if (!ipsec->xs->xso.real_dev) in bond_ipsec_del_sa_all()
610 if (!real_dev->xfrmdev_ops || in bond_ipsec_del_sa_all()
611 !real_dev->xfrmdev_ops->xdo_dev_state_delete || in bond_ipsec_del_sa_all()
614 "%s: no slave xdo_dev_state_delete\n", in bond_ipsec_del_sa_all()
619 spin_lock_bh(&ipsec->xs->lock); in bond_ipsec_del_sa_all()
620 ipsec->xs->xso.real_dev = NULL; in bond_ipsec_del_sa_all()
622 if (ipsec->xs->km.state != XFRM_STATE_DEAD) in bond_ipsec_del_sa_all()
623 real_dev->xfrmdev_ops->xdo_dev_state_delete(real_dev, in bond_ipsec_del_sa_all()
624 ipsec->xs); in bond_ipsec_del_sa_all()
625 spin_unlock_bh(&ipsec->xs->lock); in bond_ipsec_del_sa_all()
627 if (real_dev->xfrmdev_ops->xdo_dev_state_free) in bond_ipsec_del_sa_all()
628 real_dev->xfrmdev_ops->xdo_dev_state_free(real_dev, in bond_ipsec_del_sa_all()
629 ipsec->xs); in bond_ipsec_del_sa_all()
631 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_del_sa_all()
646 mutex_lock(&bond->ipsec_lock); in bond_ipsec_free_sa()
647 if (!xs->xso.real_dev) in bond_ipsec_free_sa()
650 real_dev = xs->xso.real_dev; in bond_ipsec_free_sa()
652 xs->xso.real_dev = NULL; in bond_ipsec_free_sa()
653 if (real_dev->xfrmdev_ops && in bond_ipsec_free_sa()
654 real_dev->xfrmdev_ops->xdo_dev_state_free) in bond_ipsec_free_sa()
655 real_dev->xfrmdev_ops->xdo_dev_state_free(real_dev, xs); in bond_ipsec_free_sa()
657 list_for_each_entry(ipsec, &bond->ipsec_list, list) { in bond_ipsec_free_sa()
658 if (ipsec->xs == xs) { in bond_ipsec_free_sa()
659 list_del(&ipsec->list); in bond_ipsec_free_sa()
664 mutex_unlock(&bond->ipsec_lock); in bond_ipsec_free_sa()
668 * bond_ipsec_offload_ok - can this packet use the xfrm hw offload
688 * bond_advance_esn_state - ESN support for IPSec HW offload
700 if (!real_dev->xfrmdev_ops || in bond_advance_esn_state()
701 !real_dev->xfrmdev_ops->xdo_dev_state_advance_esn) { in bond_advance_esn_state()
702 …pr_warn_ratelimited("%s: %s doesn't support xdo_dev_state_advance_esn\n", __func__, real_dev->name… in bond_advance_esn_state()
706 real_dev->xfrmdev_ops->xdo_dev_state_advance_esn(xs); in bond_advance_esn_state()
712 * bond_xfrm_update_stats - Update xfrm state
724 if (!real_dev->xfrmdev_ops || in bond_xfrm_update_stats()
725 !real_dev->xfrmdev_ops->xdo_dev_state_update_stats) { in bond_xfrm_update_stats()
726 …pr_warn_ratelimited("%s: %s doesn't support xdo_dev_state_update_stats\n", __func__, real_dev->nam… in bond_xfrm_update_stats()
730 real_dev->xfrmdev_ops->xdo_dev_state_update_stats(xs); in bond_xfrm_update_stats()
745 /*------------------------------- Link status -------------------------------*/
748 * slaves. If any slaves are up, the master is up. In 802.3ad mode,
756 struct slave *slave; in bond_set_carrier() local
764 bond_for_each_slave(bond, slave, iter) { in bond_set_carrier()
765 if (slave->link == BOND_LINK_UP) { in bond_set_carrier()
766 if (!netif_carrier_ok(bond->dev)) { in bond_set_carrier()
767 netif_carrier_on(bond->dev); in bond_set_carrier()
775 if (netif_carrier_ok(bond->dev)) { in bond_set_carrier()
776 netif_carrier_off(bond->dev); in bond_set_carrier()
782 /* Get link speed and duplex from the slave's base driver
784 * values are invalid, set speed and duplex to -1,
788 static int bond_update_speed_duplex(struct slave *slave) in bond_update_speed_duplex() argument
790 struct net_device *slave_dev = slave->dev; in bond_update_speed_duplex()
794 slave->speed = SPEED_UNKNOWN; in bond_update_speed_duplex()
795 slave->duplex = DUPLEX_UNKNOWN; in bond_update_speed_duplex()
800 if (ecmd.base.speed == 0 || ecmd.base.speed == ((__u32)-1)) in bond_update_speed_duplex()
810 slave->speed = ecmd.base.speed; in bond_update_speed_duplex()
811 slave->duplex = ecmd.base.duplex; in bond_update_speed_duplex()
832 /*----------------------------- Multicast list ------------------------------*/
841 struct slave *curr_active = rtnl_dereference(bond->curr_active_slave); in bond_set_promiscuity()
844 err = dev_set_promiscuity(curr_active->dev, inc); in bond_set_promiscuity()
846 struct slave *slave; in bond_set_promiscuity() local
848 bond_for_each_slave(bond, slave, iter) { in bond_set_promiscuity()
849 err = dev_set_promiscuity(slave->dev, inc); in bond_set_promiscuity()
864 struct slave *curr_active = rtnl_dereference(bond->curr_active_slave); in bond_set_allmulti()
867 err = dev_set_allmulti(curr_active->dev, inc); in bond_set_allmulti()
869 struct slave *slave; in bond_set_allmulti() local
871 bond_for_each_slave(bond, slave, iter) { in bond_set_allmulti()
872 err = dev_set_allmulti(slave->dev, inc); in bond_set_allmulti()
882 * slave.
890 queue_delayed_work(bond->wq, &bond->mcast_work, 1); in bond_resend_igmp_join_requests_delayed()
893 call_netdevice_notifiers(NETDEV_RESEND_IGMP, bond->dev); in bond_resend_igmp_join_requests_delayed()
895 if (bond->igmp_retrans > 1) { in bond_resend_igmp_join_requests_delayed()
896 bond->igmp_retrans--; in bond_resend_igmp_join_requests_delayed()
897 queue_delayed_work(bond->wq, &bond->mcast_work, HZ/5); in bond_resend_igmp_join_requests_delayed()
902 /* Flush bond's hardware addresses from slave */
915 /*--------------------------- Active slave change ---------------------------*/
922 static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active, in bond_hw_addr_swap()
923 struct slave *old_active) in bond_hw_addr_swap()
926 if (bond->dev->flags & IFF_PROMISC) in bond_hw_addr_swap()
927 dev_set_promiscuity(old_active->dev, -1); in bond_hw_addr_swap()
929 if (bond->dev->flags & IFF_ALLMULTI) in bond_hw_addr_swap()
930 dev_set_allmulti(old_active->dev, -1); in bond_hw_addr_swap()
932 if (bond->dev->flags & IFF_UP) in bond_hw_addr_swap()
933 bond_hw_addr_flush(bond->dev, old_active->dev); in bond_hw_addr_swap()
940 if (bond->dev->flags & IFF_PROMISC) in bond_hw_addr_swap()
941 dev_set_promiscuity(new_active->dev, 1); in bond_hw_addr_swap()
943 if (bond->dev->flags & IFF_ALLMULTI) in bond_hw_addr_swap()
944 dev_set_allmulti(new_active->dev, 1); in bond_hw_addr_swap()
946 if (bond->dev->flags & IFF_UP) { in bond_hw_addr_swap()
947 netif_addr_lock_bh(bond->dev); in bond_hw_addr_swap()
948 dev_uc_sync(new_active->dev, bond->dev); in bond_hw_addr_swap()
949 dev_mc_sync(new_active->dev, bond->dev); in bond_hw_addr_swap()
950 netif_addr_unlock_bh(bond->dev); in bond_hw_addr_swap()
958 * bond_set_dev_addr - clone slave's address to bond
960 * @slave_dev: slave net device
969 slave_dbg(bond_dev, slave_dev, "bond_dev=%p slave_dev=%p slave_dev->addr_len=%d\n", in bond_set_dev_addr()
970 bond_dev, slave_dev, slave_dev->addr_len); in bond_set_dev_addr()
971 err = netif_pre_changeaddr_notify(bond_dev, slave_dev->dev_addr, NULL); in bond_set_dev_addr()
975 __dev_addr_set(bond_dev, slave_dev->dev_addr, slave_dev->addr_len); in bond_set_dev_addr()
976 bond_dev->addr_assign_type = NET_ADDR_STOLEN; in bond_set_dev_addr()
981 static struct slave *bond_get_old_active(struct bonding *bond, in bond_get_old_active()
982 struct slave *new_active) in bond_get_old_active()
984 struct slave *slave; in bond_get_old_active() local
987 bond_for_each_slave(bond, slave, iter) { in bond_get_old_active()
988 if (slave == new_active) in bond_get_old_active()
991 if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr)) in bond_get_old_active()
992 return slave; in bond_get_old_active()
1005 struct slave *new_active, in bond_do_fail_over_mac()
1006 struct slave *old_active) in bond_do_fail_over_mac()
1012 switch (bond->params.fail_over_mac) { in bond_do_fail_over_mac()
1015 rv = bond_set_dev_addr(bond->dev, new_active->dev); in bond_do_fail_over_mac()
1017 slave_err(bond->dev, new_active->dev, "Error %d setting bond MAC from slave\n", in bond_do_fail_over_mac()
1018 -rv); in bond_do_fail_over_mac()
1023 * if just old_active, do nothing (going to no active slave) in bond_do_fail_over_mac()
1033 bond_hw_addr_copy(tmp_mac, new_active->dev->dev_addr, in bond_do_fail_over_mac()
1034 new_active->dev->addr_len); in bond_do_fail_over_mac()
1036 old_active->dev->dev_addr, in bond_do_fail_over_mac()
1037 old_active->dev->addr_len); in bond_do_fail_over_mac()
1038 ss.ss_family = new_active->dev->type; in bond_do_fail_over_mac()
1040 bond_hw_addr_copy(ss.__data, bond->dev->dev_addr, in bond_do_fail_over_mac()
1041 bond->dev->addr_len); in bond_do_fail_over_mac()
1042 ss.ss_family = bond->dev->type; in bond_do_fail_over_mac()
1045 rv = dev_set_mac_address(new_active->dev, &ss, NULL); in bond_do_fail_over_mac()
1047 slave_err(bond->dev, new_active->dev, "Error %d setting MAC of new active slave\n", in bond_do_fail_over_mac()
1048 -rv); in bond_do_fail_over_mac()
1056 new_active->dev->addr_len); in bond_do_fail_over_mac()
1057 ss.ss_family = old_active->dev->type; in bond_do_fail_over_mac()
1059 rv = dev_set_mac_address(old_active->dev, &ss, NULL); in bond_do_fail_over_mac()
1061 slave_err(bond->dev, old_active->dev, "Error %d setting MAC of old active slave\n", in bond_do_fail_over_mac()
1062 -rv); in bond_do_fail_over_mac()
1066 netdev_err(bond->dev, "bond_do_fail_over_mac impossible: bad policy %d\n", in bond_do_fail_over_mac()
1067 bond->params.fail_over_mac); in bond_do_fail_over_mac()
1074 * bond_choose_primary_or_current - select the primary or high priority slave
1077 * - Check if there is a primary link. If the primary link was set and is up,
1080 * - If primary link is not set or down, find the highest priority link.
1081 * If the highest priority link is not current slave, set it as primary
1084 static struct slave *bond_choose_primary_or_current(struct bonding *bond) in bond_choose_primary_or_current()
1086 struct slave *prim = rtnl_dereference(bond->primary_slave); in bond_choose_primary_or_current()
1087 struct slave *curr = rtnl_dereference(bond->curr_active_slave); in bond_choose_primary_or_current()
1088 struct slave *slave, *hprio = NULL; in bond_choose_primary_or_current() local
1091 if (!prim || prim->link != BOND_LINK_UP) { in bond_choose_primary_or_current()
1092 bond_for_each_slave(bond, slave, iter) { in bond_choose_primary_or_current()
1093 if (slave->link == BOND_LINK_UP) { in bond_choose_primary_or_current()
1094 hprio = hprio ?: slave; in bond_choose_primary_or_current()
1095 if (slave->prio > hprio->prio) in bond_choose_primary_or_current()
1096 hprio = slave; in bond_choose_primary_or_current()
1105 if (!curr || curr->link != BOND_LINK_UP) in bond_choose_primary_or_current()
1110 if (bond->force_primary) { in bond_choose_primary_or_current()
1111 bond->force_primary = false; in bond_choose_primary_or_current()
1116 if (!curr || curr->link != BOND_LINK_UP) in bond_choose_primary_or_current()
1120 switch (bond->params.primary_reselect) { in bond_choose_primary_or_current()
1124 if (prim->speed < curr->speed) in bond_choose_primary_or_current()
1126 if (prim->speed == curr->speed && prim->duplex <= curr->duplex) in bond_choose_primary_or_current()
1132 netdev_err(bond->dev, "impossible primary_reselect %d\n", in bond_choose_primary_or_current()
1133 bond->params.primary_reselect); in bond_choose_primary_or_current()
1139 * bond_find_best_slave - select the best available slave to be the active one
1142 static struct slave *bond_find_best_slave(struct bonding *bond) in bond_find_best_slave()
1144 struct slave *slave, *bestslave = NULL; in bond_find_best_slave() local
1146 int mintime = bond->params.updelay; in bond_find_best_slave()
1148 slave = bond_choose_primary_or_current(bond); in bond_find_best_slave()
1149 if (slave) in bond_find_best_slave()
1150 return slave; in bond_find_best_slave()
1152 bond_for_each_slave(bond, slave, iter) { in bond_find_best_slave()
1153 if (slave->link == BOND_LINK_UP) in bond_find_best_slave()
1154 return slave; in bond_find_best_slave()
1155 if (slave->link == BOND_LINK_BACK && bond_slave_is_up(slave) && in bond_find_best_slave()
1156 slave->delay < mintime) { in bond_find_best_slave()
1157 mintime = slave->delay; in bond_find_best_slave()
1158 bestslave = slave; in bond_find_best_slave()
1169 struct slave *slave = NULL; in bond_should_notify_peers() local
1171 if (!bond->send_peer_notif || in bond_should_notify_peers()
1172 bond->send_peer_notif % in bond_should_notify_peers()
1173 max(1, bond->params.peer_notif_delay) != 0 || in bond_should_notify_peers()
1174 !netif_carrier_ok(bond->dev)) in bond_should_notify_peers()
1177 /* The send_peer_notif is set by active-backup or 8023ad in bond_should_notify_peers()
1178 * mode, and cleared in bond_close() when changing mode. in bond_should_notify_peers()
1179 * It is safe to only check bond mode here. in bond_should_notify_peers()
1182 usable = rcu_dereference_rtnl(bond->usable_slaves); in bond_should_notify_peers()
1183 if (!usable || !READ_ONCE(usable->count)) in bond_should_notify_peers()
1186 slave = rcu_dereference_rtnl(bond->curr_active_slave); in bond_should_notify_peers()
1187 if (!slave || test_bit(__LINK_STATE_LINKWATCH_PENDING, in bond_should_notify_peers()
1188 &slave->dev->state)) in bond_should_notify_peers()
1192 netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n", in bond_should_notify_peers()
1193 slave ? slave->dev->name : "all"); in bond_should_notify_peers()
1199 * bond_change_active_slave - change the active slave into the specified one
1201 * @new_active: the new slave to make the active one
1203 * Set the new slave to the bond's settings and unset them on the old
1205 * Setting include flags, mc-list, promiscuity, allmulti, etc.
1208 * because it is apparently the best available slave we have, even though its
1213 void bond_change_active_slave(struct bonding *bond, struct slave *new_active) in bond_change_active_slave()
1215 struct slave *old_active; in bond_change_active_slave()
1219 old_active = rtnl_dereference(bond->curr_active_slave); in bond_change_active_slave()
1229 new_active->last_link_up = jiffies; in bond_change_active_slave()
1231 if (new_active->link == BOND_LINK_BACK) { in bond_change_active_slave()
1233 slave_info(bond->dev, new_active->dev, "making interface the new active one %d ms earlier\n", in bond_change_active_slave()
1234 (bond->params.updelay - new_active->delay) * bond->params.miimon); in bond_change_active_slave()
1237 new_active->delay = 0; in bond_change_active_slave()
1248 slave_info(bond->dev, new_active->dev, "making interface the new active one\n"); in bond_change_active_slave()
1264 rcu_assign_pointer(bond->curr_active_slave, new_active); in bond_change_active_slave()
1278 if (bond->params.fail_over_mac) in bond_change_active_slave()
1282 if (netif_running(bond->dev)) { in bond_change_active_slave()
1283 bond->send_peer_notif = in bond_change_active_slave()
1284 bond->params.num_peer_notif * in bond_change_active_slave()
1285 max(1, bond->params.peer_notif_delay); in bond_change_active_slave()
1290 call_netdevice_notifiers(NETDEV_BONDING_FAILOVER, bond->dev); in bond_change_active_slave()
1292 bond->send_peer_notif--; in bond_change_active_slave()
1294 bond->dev); in bond_change_active_slave()
1303 /* resend IGMP joins since active slave has changed or in bond_change_active_slave()
1308 if (netif_running(bond->dev) && (bond->params.resend_igmp > 0) && in bond_change_active_slave()
1311 bond->igmp_retrans = bond->params.resend_igmp; in bond_change_active_slave()
1312 queue_delayed_work(bond->wq, &bond->mcast_work, 1); in bond_change_active_slave()
1317 * bond_select_active_slave - select a new active slave, if needed
1321 * - The old curr_active_slave has been released or lost its link.
1322 * - The primary_slave has got its link back.
1323 * - A slave has got its link back and there's no old curr_active_slave.
1329 struct slave *best_slave; in bond_select_active_slave()
1335 if (best_slave != rtnl_dereference(bond->curr_active_slave)) { in bond_select_active_slave()
1341 if (netif_carrier_ok(bond->dev)) in bond_select_active_slave()
1342 netdev_info(bond->dev, "active interface up!\n"); in bond_select_active_slave()
1344 netdev_info(bond->dev, "now running without any active interface!\n"); in bond_select_active_slave()
1349 static inline int slave_enable_netpoll(struct slave *slave) in slave_enable_netpoll() argument
1355 err = -ENOMEM; in slave_enable_netpoll()
1359 err = __netpoll_setup(np, slave->dev); in slave_enable_netpoll()
1364 slave->np = np; in slave_enable_netpoll()
1368 static inline void slave_disable_netpoll(struct slave *slave) in slave_disable_netpoll() argument
1370 struct netpoll *np = slave->np; in slave_disable_netpoll()
1375 slave->np = NULL; in slave_disable_netpoll()
1383 struct slave *slave = NULL; in bond_poll_controller() local
1391 bond_for_each_slave_rcu(bond, slave, iter) { in bond_poll_controller()
1392 if (!bond_slave_is_up(slave)) in bond_poll_controller()
1397 SLAVE_AD_INFO(slave)->port.aggregator; in bond_poll_controller()
1400 agg->aggregator_identifier != ad_info.aggregator_id) in bond_poll_controller()
1404 netpoll_poll_dev(slave->dev); in bond_poll_controller()
1412 struct slave *slave; in bond_netpoll_cleanup() local
1414 bond_for_each_slave(bond, slave, iter) in bond_netpoll_cleanup()
1415 if (bond_slave_is_up(slave)) in bond_netpoll_cleanup()
1416 slave_disable_netpoll(slave); in bond_netpoll_cleanup()
1423 struct slave *slave; in bond_netpoll_setup() local
1426 bond_for_each_slave(bond, slave, iter) { in bond_netpoll_setup()
1427 err = slave_enable_netpoll(slave); in bond_netpoll_setup()
1436 static inline int slave_enable_netpoll(struct slave *slave) in slave_enable_netpoll() argument
1440 static inline void slave_disable_netpoll(struct slave *slave) in slave_disable_netpoll() argument
1448 /*---------------------------------- IOCTL ----------------------------------*/
1456 struct slave *slave; in bond_fix_features() local
1461 bond_for_each_slave(bond, slave, iter) { in bond_fix_features()
1463 slave->dev->features, in bond_fix_features()
1497 struct net_device *bond_dev = bond->dev; in bond_compute_features()
1499 struct slave *slave; in bond_compute_features() local
1510 bond_for_each_slave(bond, slave, iter) { in bond_compute_features()
1512 slave->dev->vlan_features, BOND_VLAN_FEATURES); in bond_compute_features()
1515 slave->dev->hw_enc_features, in bond_compute_features()
1520 slave->dev->hw_enc_features, in bond_compute_features()
1525 slave->dev->gso_partial_features, in bond_compute_features()
1529 slave->dev->mpls_features, in bond_compute_features()
1532 dst_release_flag &= slave->dev->priv_flags; in bond_compute_features()
1533 if (slave->dev->hard_header_len > max_hard_header_len) in bond_compute_features()
1534 max_hard_header_len = slave->dev->hard_header_len; in bond_compute_features()
1536 tso_max_size = min(tso_max_size, slave->dev->tso_max_size); in bond_compute_features()
1537 tso_max_segs = min(tso_max_segs, slave->dev->tso_max_segs); in bond_compute_features()
1539 bond_dev->hard_header_len = max_hard_header_len; in bond_compute_features()
1542 bond_dev->gso_partial_features = gso_partial_features; in bond_compute_features()
1543 bond_dev->vlan_features = vlan_features; in bond_compute_features()
1544 bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | in bond_compute_features()
1548 bond_dev->hw_enc_features |= xfrm_features; in bond_compute_features()
1550 bond_dev->mpls_features = mpls_features; in bond_compute_features()
1554 bond_dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; in bond_compute_features()
1555 if ((bond_dev->priv_flags & IFF_XMIT_DST_RELEASE_PERM) && in bond_compute_features()
1557 bond_dev->priv_flags |= IFF_XMIT_DST_RELEASE; in bond_compute_features()
1565 bool was_up = !!(bond_dev->flags & IFF_UP); in bond_setup_by_slave()
1569 bond_dev->header_ops = slave_dev->header_ops; in bond_setup_by_slave()
1571 bond_dev->type = slave_dev->type; in bond_setup_by_slave()
1572 bond_dev->hard_header_len = slave_dev->hard_header_len; in bond_setup_by_slave()
1573 bond_dev->needed_headroom = slave_dev->needed_headroom; in bond_setup_by_slave()
1574 bond_dev->addr_len = slave_dev->addr_len; in bond_setup_by_slave()
1576 memcpy(bond_dev->broadcast, slave_dev->broadcast, in bond_setup_by_slave()
1577 slave_dev->addr_len); in bond_setup_by_slave()
1579 if (slave_dev->flags & IFF_POINTOPOINT) { in bond_setup_by_slave()
1580 bond_dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST); in bond_setup_by_slave()
1581 bond_dev->flags |= (IFF_POINTOPOINT | IFF_NOARP); in bond_setup_by_slave()
1587 /* On bonding slaves other than the currently active slave, suppress
1588 * duplicates except for alb non-mcast/bcast.
1591 struct slave *slave, in bond_should_deliver_exact_match() argument
1594 if (bond_is_slave_inactive(slave)) { in bond_should_deliver_exact_match()
1596 skb->pkt_type != PACKET_BROADCAST && in bond_should_deliver_exact_match()
1597 skb->pkt_type != PACKET_MULTICAST) in bond_should_deliver_exact_match()
1607 struct slave *slave; in bond_handle_frame() local
1610 struct slave *); in bond_handle_frame()
1619 slave = bond_slave_get_rcu(skb->dev); in bond_handle_frame()
1620 bond = slave->bond; in bond_handle_frame()
1622 recv_probe = READ_ONCE(bond->recv_probe); in bond_handle_frame()
1624 ret = recv_probe(skb, bond, slave); in bond_handle_frame()
1633 * be suppressed we want to make an exception for link-local packets. in bond_handle_frame()
1635 * inactive slave links without being forced to bind to them in bond_handle_frame()
1639 * (including link-local ones) can have their originating interface in bond_handle_frame()
1642 if (bond_should_deliver_exact_match(skb, slave, bond)) { in bond_handle_frame()
1643 if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) in bond_handle_frame()
1648 skb->dev = bond->dev; in bond_handle_frame()
1651 netif_is_bridge_port(bond->dev) && in bond_handle_frame()
1652 skb->pkt_type == PACKET_HOST) { in bond_handle_frame()
1655 skb->data - skb_mac_header(skb)))) { in bond_handle_frame()
1659 bond_hw_addr_copy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, in bond_handle_frame()
1660 bond->dev->addr_len); in bond_handle_frame()
1689 switch (bond->params.xmit_policy) { in bond_lag_hash_type()
1707 static int bond_master_upper_dev_link(struct bonding *bond, struct slave *slave, in bond_master_upper_dev_link() argument
1718 err = netdev_master_upper_dev_link(slave->dev, bond->dev, slave, in bond_master_upper_dev_link()
1723 slave->dev->flags |= IFF_SLAVE; in bond_master_upper_dev_link()
1727 static void bond_upper_dev_unlink(struct bonding *bond, struct slave *slave) in bond_upper_dev_unlink() argument
1729 netdev_upper_dev_unlink(slave->dev, bond->dev); in bond_upper_dev_unlink()
1730 slave->dev->flags &= ~IFF_SLAVE; in bond_upper_dev_unlink()
1735 struct slave *slave = to_slave(kobj); in slave_kobj_release() local
1736 struct bonding *bond = bond_get_bond_by_slave(slave); in slave_kobj_release()
1738 cancel_delayed_work_sync(&slave->notify_work); in slave_kobj_release()
1740 kfree(SLAVE_AD_INFO(slave)); in slave_kobj_release()
1742 kfree(slave); in slave_kobj_release()
1752 static int bond_kobj_init(struct slave *slave) in bond_kobj_init() argument
1756 err = kobject_init_and_add(&slave->kobj, &slave_ktype, in bond_kobj_init()
1757 &(slave->dev->dev.kobj), "bonding_slave"); in bond_kobj_init()
1759 kobject_put(&slave->kobj); in bond_kobj_init()
1764 static struct slave *bond_alloc_slave(struct bonding *bond, in bond_alloc_slave()
1767 struct slave *slave = NULL; in bond_alloc_slave() local
1769 slave = kzalloc(sizeof(*slave), GFP_KERNEL); in bond_alloc_slave()
1770 if (!slave) in bond_alloc_slave()
1773 slave->bond = bond; in bond_alloc_slave()
1774 slave->dev = slave_dev; in bond_alloc_slave()
1775 INIT_DELAYED_WORK(&slave->notify_work, bond_netdev_notify_work); in bond_alloc_slave()
1777 if (bond_kobj_init(slave)) in bond_alloc_slave()
1781 SLAVE_AD_INFO(slave) = kzalloc(sizeof(struct ad_slave_info), in bond_alloc_slave()
1783 if (!SLAVE_AD_INFO(slave)) { in bond_alloc_slave()
1784 kobject_put(&slave->kobj); in bond_alloc_slave()
1789 return slave; in bond_alloc_slave()
1794 info->bond_mode = BOND_MODE(bond); in bond_fill_ifbond()
1795 info->miimon = bond->params.miimon; in bond_fill_ifbond()
1796 info->num_slaves = bond->slave_cnt; in bond_fill_ifbond()
1799 static void bond_fill_ifslave(struct slave *slave, struct ifslave *info) in bond_fill_ifslave() argument
1801 strcpy(info->slave_name, slave->dev->name); in bond_fill_ifslave()
1802 info->link = slave->link; in bond_fill_ifslave()
1803 info->state = bond_slave_state(slave); in bond_fill_ifslave()
1804 info->link_failure_count = slave->link_failure_count; in bond_fill_ifslave()
1809 struct slave *slave = container_of(_work, struct slave, in bond_netdev_notify_work() local
1815 bond_fill_ifslave(slave, &binfo.slave); in bond_netdev_notify_work()
1816 bond_fill_ifbond(slave->bond, &binfo.master); in bond_netdev_notify_work()
1817 netdev_bonding_info_change(slave->dev, &binfo); in bond_netdev_notify_work()
1820 queue_delayed_work(slave->bond->wq, &slave->notify_work, 1); in bond_netdev_notify_work()
1824 void bond_queue_slave_event(struct slave *slave) in bond_queue_slave_event() argument
1826 queue_delayed_work(slave->bond->wq, &slave->notify_work, 0); in bond_queue_slave_event()
1829 void bond_lower_state_changed(struct slave *slave) in bond_lower_state_changed() argument
1833 info.link_up = slave->link == BOND_LINK_UP || in bond_lower_state_changed()
1834 slave->link == BOND_LINK_FAIL; in bond_lower_state_changed()
1835 info.tx_enabled = bond_is_active_slave(slave); in bond_lower_state_changed()
1836 netdev_lower_state_changed(slave->dev, &info); in bond_lower_state_changed()
1860 unsigned int flags = bond_dev->flags & (IFF_SLAVE | IFF_UP); in bond_ether_setup()
1863 bond_dev->flags |= IFF_MASTER | flags; in bond_ether_setup()
1864 bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING; in bond_ether_setup()
1872 struct slave *slave; in bond_xdp_set_features() local
1881 bond_for_each_slave(bond, slave, iter) in bond_xdp_set_features()
1882 val &= slave->dev->xdp_features; in bond_xdp_set_features()
1889 /* enslave device <slave> to bond device <master> */
1894 const struct net_device_ops *slave_ops = slave_dev->netdev_ops; in bond_enslave()
1895 struct slave *new_slave = NULL, *prev_slave; in bond_enslave()
1899 if (slave_dev->flags & IFF_MASTER && in bond_enslave()
1903 return -EPERM; in bond_enslave()
1906 /* already in-use? */ in bond_enslave()
1910 return -EBUSY; in bond_enslave()
1915 return -EPERM; in bond_enslave()
1920 if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) { in bond_enslave()
1925 return -EPERM; in bond_enslave()
1927 …slave_warn(bond_dev, slave_dev, "enslaved VLAN challenged slave. Adding VLANs will be blocked as l… in bond_enslave()
1933 if (slave_dev->features & NETIF_F_HW_ESP) in bond_enslave()
1934 slave_dbg(bond_dev, slave_dev, "is esp-hw-offload capable\n"); in bond_enslave()
1937 * be identified with moderate accuracy by the state of the slave: in bond_enslave()
1941 if (slave_dev->flags & IFF_UP) { in bond_enslave()
1944 return -EPERM; in bond_enslave()
1947 /* set bonding device ether type by slave - bonding netdevices are in bond_enslave()
1948 * created with ether_setup, so when the slave type is not ARPHRD_ETHER in bond_enslave()
1951 * bond ether type mutual exclusion - don't allow slaves of dissimilar in bond_enslave()
1955 if (bond_dev->type != slave_dev->type) { in bond_enslave()
1957 bond_dev->type, slave_dev->type); in bond_enslave()
1964 return -EBUSY; in bond_enslave()
1971 if (slave_dev->type != ARPHRD_ETHER) in bond_enslave()
1979 } else if (bond_dev->type != slave_dev->type) { in bond_enslave()
1982 return -EINVAL; in bond_enslave()
1985 if (slave_dev->type == ARPHRD_INFINIBAND && in bond_enslave()
1988 "Only active-backup mode is supported for infiniband slaves"); in bond_enslave()
1989 res = -EOPNOTSUPP; in bond_enslave()
1993 if (!slave_ops->ndo_set_mac_address || in bond_enslave()
1994 slave_dev->type == ARPHRD_INFINIBAND) { in bond_enslave()
1995 …slave_warn(bond_dev, slave_dev, "The slave device specified does not support setting the MAC addre… in bond_enslave()
1997 bond->params.fail_over_mac != BOND_FOM_ACTIVE) { in bond_enslave()
1999 bond->params.fail_over_mac = BOND_FOM_ACTIVE; in bond_enslave()
2000 slave_warn(bond_dev, slave_dev, "Setting fail_over_mac to active for active-backup mode\n"); in bond_enslave()
2003 … "Slave device does not support setting the MAC address, but fail_over_mac is not set to active"); in bond_enslave()
2004 res = -EOPNOTSUPP; in bond_enslave()
2012 /* If this is the first slave, then we need to set the master's hardware in bond_enslave()
2013 * address to be the same as the slave's. in bond_enslave()
2016 bond->dev->addr_assign_type == NET_ADDR_RANDOM) { in bond_enslave()
2017 res = bond_set_dev_addr(bond->dev, slave_dev); in bond_enslave()
2024 res = -ENOMEM; in bond_enslave()
2031 new_slave->queue_id = 0; in bond_enslave()
2033 /* Save slave's original mtu and then set it to match the bond */ in bond_enslave()
2034 new_slave->original_mtu = slave_dev->mtu; in bond_enslave()
2035 res = dev_set_mtu(slave_dev, bond->dev->mtu); in bond_enslave()
2041 /* Save slave's original ("permanent") mac address for modes in bond_enslave()
2045 bond_hw_addr_copy(new_slave->perm_hwaddr, slave_dev->dev_addr, in bond_enslave()
2046 slave_dev->addr_len); in bond_enslave()
2048 if (!bond->params.fail_over_mac || in bond_enslave()
2050 /* Set slave to master's mac address. The application already in bond_enslave()
2051 * set the master's mac address to that of the first slave in bond_enslave()
2053 memcpy(ss.__data, bond_dev->dev_addr, bond_dev->addr_len); in bond_enslave()
2054 } else if (bond->params.fail_over_mac == BOND_FOM_FOLLOW && in bond_enslave()
2057 memcmp(slave_dev->dev_addr, bond_dev->dev_addr, bond_dev->addr_len) == 0) { in bond_enslave()
2058 /* Set slave to random address to avoid duplicate mac in bond_enslave()
2066 ss.ss_family = slave_dev->type; in bond_enslave()
2076 slave_dev->priv_flags |= IFF_NO_ADDRCONF; in bond_enslave()
2078 /* open the slave since the application closed it */ in bond_enslave()
2081 slave_err(bond_dev, slave_dev, "Opening slave failed\n"); in bond_enslave()
2085 slave_dev->priv_flags |= IFF_BONDING; in bond_enslave()
2086 /* initialize slave stats */ in bond_enslave()
2087 dev_get_stats(new_slave->dev, &new_slave->slave_stats); in bond_enslave()
2106 new_slave->delay = 0; in bond_enslave()
2107 new_slave->link_failure_count = 0; in bond_enslave()
2111 new_slave->link = BOND_LINK_DOWN; in bond_enslave()
2113 new_slave->last_rx = jiffies - in bond_enslave()
2114 (msecs_to_jiffies(bond->params.arp_interval) + 1); in bond_enslave()
2116 new_slave->target_last_arp_rx[i] = new_slave->last_rx; in bond_enslave()
2118 new_slave->last_tx = new_slave->last_rx; in bond_enslave()
2121 new_slave->link = BOND_LINK_NOCHANGE; in bond_enslave()
2122 if (bond->params.miimon) { in bond_enslave()
2124 if (bond->params.updelay) { in bond_enslave()
2128 new_slave->delay = bond->params.updelay; in bond_enslave()
2138 } else if (bond->params.arp_interval) { in bond_enslave()
2148 if (new_slave->link != BOND_LINK_DOWN) in bond_enslave()
2149 new_slave->last_link_up = jiffies; in bond_enslave()
2150 slave_dbg(bond_dev, slave_dev, "Initial state of slave is BOND_LINK_%s\n", in bond_enslave()
2151 new_slave->link == BOND_LINK_DOWN ? "DOWN" : in bond_enslave()
2152 (new_slave->link == BOND_LINK_UP ? "UP" : "BACK")); in bond_enslave()
2154 if (bond_uses_primary(bond) && bond->params.primary[0]) { in bond_enslave()
2155 /* if there is a primary slave, remember it */ in bond_enslave()
2156 if (strcmp(bond->params.primary, new_slave->dev->name) == 0) { in bond_enslave()
2157 rcu_assign_pointer(bond->primary_slave, new_slave); in bond_enslave()
2158 bond->force_primary = true; in bond_enslave()
2168 /* in 802.3ad mode, the internal mechanism in bond_enslave()
2173 /* if this is the first slave */ in bond_enslave()
2175 SLAVE_AD_INFO(new_slave)->id = 1; in bond_enslave()
2181 SLAVE_AD_INFO(new_slave)->id = in bond_enslave()
2182 SLAVE_AD_INFO(prev_slave)->id + 1; in bond_enslave()
2193 slave_dbg(bond_dev, slave_dev, "This slave is always active in trunk mode\n"); in bond_enslave()
2195 /* always active in trunk mode */ in bond_enslave()
2198 /* In trunking mode there is little meaning to curr_active_slave in bond_enslave()
2202 if (!rcu_access_pointer(bond->curr_active_slave) && in bond_enslave()
2203 new_slave->link == BOND_LINK_UP) in bond_enslave()
2204 rcu_assign_pointer(bond->curr_active_slave, new_slave); in bond_enslave()
2210 if (bond->dev->npinfo) { in bond_enslave()
2212 …slave_info(bond_dev, slave_dev, "master_dev is using netpoll, but new slave device does not suppor… in bond_enslave()
2213 res = -EBUSY; in bond_enslave()
2219 if (!(bond_dev->features & NETIF_F_LRO)) in bond_enslave()
2243 /* If the mode uses primary, then the following is handled by in bond_enslave()
2247 /* set promiscuity level to new slave */ in bond_enslave()
2248 if (bond_dev->flags & IFF_PROMISC) { in bond_enslave()
2254 /* set allmulti level to new slave */ in bond_enslave()
2255 if (bond_dev->flags & IFF_ALLMULTI) { in bond_enslave()
2258 if (bond_dev->flags & IFF_PROMISC) in bond_enslave()
2259 dev_set_promiscuity(slave_dev, -1); in bond_enslave()
2264 if (bond_dev->flags & IFF_UP) { in bond_enslave()
2275 bond->slave_cnt++; in bond_enslave()
2280 * remove the maddrs if the slave is selected as active slave. in bond_enslave()
2290 /* broadcast mode uses the all_slaves to loop through slaves. */ in bond_enslave()
2295 if (!slave_dev->netdev_ops->ndo_bpf || in bond_enslave()
2296 !slave_dev->netdev_ops->ndo_xdp_xmit) { in bond_enslave()
2297 if (bond->xdp_prog) { in bond_enslave()
2299 "Slave does not support XDP"); in bond_enslave()
2300 res = -EOPNOTSUPP; in bond_enslave()
2303 } else if (bond->xdp_prog) { in bond_enslave()
2307 .prog = bond->xdp_prog, in bond_enslave()
2313 "Slave has XDP program loaded, please unload before enslaving"); in bond_enslave()
2314 res = -EOPNOTSUPP; in bond_enslave()
2324 if (bond->xdp_prog) in bond_enslave()
2325 bpf_prog_inc(bond->xdp_prog); in bond_enslave()
2332 new_slave->link != BOND_LINK_DOWN ? "an up" : "a down"); in bond_enslave()
2350 if (rcu_access_pointer(bond->primary_slave) == new_slave) in bond_enslave()
2351 RCU_INIT_POINTER(bond->primary_slave, NULL); in bond_enslave()
2352 if (rcu_access_pointer(bond->curr_active_slave) == new_slave) { in bond_enslave()
2364 slave_dev->priv_flags &= ~IFF_BONDING; in bond_enslave()
2368 slave_dev->priv_flags &= ~IFF_NO_ADDRCONF; in bond_enslave()
2369 if (!bond->params.fail_over_mac || in bond_enslave()
2371 /* XXX TODO - fom follow mode needs to change master's in bond_enslave()
2372 * MAC if this slave's MAC is in use by the bond, or at in bond_enslave()
2375 bond_hw_addr_copy(ss.__data, new_slave->perm_hwaddr, in bond_enslave()
2376 new_slave->dev->addr_len); in bond_enslave()
2377 ss.ss_family = slave_dev->type; in bond_enslave()
2382 dev_set_mtu(slave_dev, new_slave->original_mtu); in bond_enslave()
2385 kobject_put(&new_slave->kobj); in bond_enslave()
2388 /* Enslave of first slave has failed and we need to fix master's mac */ in bond_enslave()
2390 if (ether_addr_equal_64bits(bond_dev->dev_addr, in bond_enslave()
2391 slave_dev->dev_addr)) in bond_enslave()
2393 if (bond_dev->type != ARPHRD_ETHER) { in bond_enslave()
2402 /* Try to release the slave device <slave> from the bond device <master>
2404 * is RTNL-locked. If "all" is true it means that the function is being called
2407 * The rules for slave state should be:
2418 struct slave *slave, *oldcurrent; in __bond_release_one() local
2420 int old_flags = bond_dev->flags; in __bond_release_one()
2421 netdev_features_t old_features = bond_dev->features; in __bond_release_one()
2423 /* slave is not a slave or master is not master of this slave */ in __bond_release_one()
2424 if (!(slave_dev->flags & IFF_SLAVE) || in __bond_release_one()
2426 slave_dbg(bond_dev, slave_dev, "cannot release slave\n"); in __bond_release_one()
2427 return -EINVAL; in __bond_release_one()
2432 slave = bond_get_slave_by_dev(bond, slave_dev); in __bond_release_one()
2433 if (!slave) { in __bond_release_one()
2434 /* not a slave of this bond */ in __bond_release_one()
2437 return -EINVAL; in __bond_release_one()
2440 bond_set_slave_inactive_flags(slave, BOND_SLAVE_NOTIFY_NOW); in __bond_release_one()
2442 bond_sysfs_slave_del(slave); in __bond_release_one()
2444 /* recompute stats just before removing the slave */ in __bond_release_one()
2445 bond_get_stats(bond->dev, &bond->bond_stats); in __bond_release_one()
2447 if (bond->xdp_prog) { in __bond_release_one()
2459 * for this slave anymore. in __bond_release_one()
2464 bond_3ad_unbind_slave(slave); in __bond_release_one()
2466 bond_upper_dev_unlink(bond, slave); in __bond_release_one()
2470 bond_update_slave_arr(bond, slave); in __bond_release_one()
2473 bond_is_active_slave(slave) ? "active" : "backup"); in __bond_release_one()
2475 oldcurrent = rcu_access_pointer(bond->curr_active_slave); in __bond_release_one()
2477 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in __bond_release_one()
2479 if (!all && (bond->params.fail_over_mac != BOND_FOM_ACTIVE || in __bond_release_one()
2481 if (ether_addr_equal_64bits(bond_dev->dev_addr, slave->perm_hwaddr) && in __bond_release_one()
2483 …ond_dev, slave_dev, "the permanent HWaddr of slave - %pM - is still in use by bond - set the HWadd… in __bond_release_one()
2484 slave->perm_hwaddr); in __bond_release_one()
2487 if (rtnl_dereference(bond->primary_slave) == slave) in __bond_release_one()
2488 RCU_INIT_POINTER(bond->primary_slave, NULL); in __bond_release_one()
2490 if (oldcurrent == slave) in __bond_release_one()
2493 /* Must be called after bond_change_active_slave () as the slave in __bond_release_one()
2494 * might change from an active slave to a backup slave. Then it is in __bond_release_one()
2495 * necessary to clear the maddrs on the backup slave. in __bond_release_one()
2497 bond_slave_ns_maddrs_del(bond, slave); in __bond_release_one()
2500 /* Must be called only after the slave has been in __bond_release_one()
2503 * but before a new active slave is selected. in __bond_release_one()
2505 bond_alb_deinit_slave(bond, slave); in __bond_release_one()
2509 RCU_INIT_POINTER(bond->curr_active_slave, NULL); in __bond_release_one()
2510 } else if (oldcurrent == slave) { in __bond_release_one()
2512 * is no concern that another slave add/remove event in __bond_release_one()
2524 bond->slave_cnt--; in __bond_release_one()
2527 call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev); in __bond_release_one()
2528 call_netdevice_notifiers(NETDEV_RELEASE, bond->dev); in __bond_release_one()
2532 if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) && in __bond_release_one()
2534 …slave_info(bond_dev, slave_dev, "last VLAN challenged slave left bond - VLAN blocking is removed\n… in __bond_release_one()
2538 /* If the mode uses primary, then this case was handled above by in __bond_release_one()
2542 /* unset promiscuity level from slave in __bond_release_one()
2546 * when this slave was attached, so we cache at the start of the in __bond_release_one()
2550 dev_set_promiscuity(slave_dev, -1); in __bond_release_one()
2552 /* unset allmulti level from slave */ in __bond_release_one()
2554 dev_set_allmulti(slave_dev, -1); in __bond_release_one()
2560 slave_disable_netpoll(slave); in __bond_release_one()
2562 /* close slave before restoring its mac address */ in __bond_release_one()
2565 slave_dev->priv_flags &= ~IFF_NO_ADDRCONF; in __bond_release_one()
2567 if (bond->params.fail_over_mac != BOND_FOM_ACTIVE || in __bond_release_one()
2570 bond_hw_addr_copy(ss.__data, slave->perm_hwaddr, in __bond_release_one()
2571 slave->dev->addr_len); in __bond_release_one()
2572 ss.ss_family = slave_dev->type; in __bond_release_one()
2578 __netif_set_mtu(slave_dev, slave->original_mtu); in __bond_release_one()
2581 dev_set_mtu(slave_dev, slave->original_mtu); in __bond_release_one()
2585 slave_dev->priv_flags &= ~IFF_BONDING; in __bond_release_one()
2588 kobject_put(&slave->kobj); in __bond_release_one()
2599 /* First release a slave and then destroy the bond if no more slaves are left.
2610 bond_dev->reg_state != NETREG_UNREGISTERING) { in bond_release_and_destroy()
2611 bond_dev->priv_flags |= IFF_DISABLE_NETPOLL; in bond_release_and_destroy()
2630 int i = 0, res = -ENODEV; in bond_slave_info_query()
2631 struct slave *slave; in bond_slave_info_query() local
2633 bond_for_each_slave(bond, slave, iter) { in bond_slave_info_query()
2634 if (i++ == (int)info->slave_id) { in bond_slave_info_query()
2636 bond_fill_ifslave(slave, info); in bond_slave_info_query()
2644 /*-------------------------------- Monitoring -------------------------------*/
2652 struct slave *slave; in bond_miimon_inspect() local
2655 ignore_updelay = !rcu_dereference(bond->curr_active_slave); in bond_miimon_inspect()
2659 usable_slaves = rcu_dereference(bond->usable_slaves); in bond_miimon_inspect()
2661 if (usable_slaves && usable_slaves->count == 0) in bond_miimon_inspect()
2665 bond_for_each_slave_rcu(bond, slave, iter) { in bond_miimon_inspect()
2666 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_miimon_inspect()
2668 link_state = netif_carrier_ok(slave->dev); in bond_miimon_inspect()
2670 switch (slave->link) { in bond_miimon_inspect()
2675 bond_propose_link_state(slave, BOND_LINK_FAIL); in bond_miimon_inspect()
2677 slave->delay = bond->params.downdelay; in bond_miimon_inspect()
2678 if (slave->delay && net_ratelimit()) { in bond_miimon_inspect()
2679 slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n", in bond_miimon_inspect()
2682 (bond_is_active_slave(slave) ? in bond_miimon_inspect()
2684 bond->params.downdelay * bond->params.miimon); in bond_miimon_inspect()
2690 bond_propose_link_state(slave, BOND_LINK_UP); in bond_miimon_inspect()
2691 slave->last_link_up = jiffies; in bond_miimon_inspect()
2693 slave_info(bond->dev, slave->dev, "link status up again after %d ms\n", in bond_miimon_inspect()
2694 (bond->params.downdelay - slave->delay) * in bond_miimon_inspect()
2695 bond->params.miimon); in bond_miimon_inspect()
2700 if (slave->delay <= 0) { in bond_miimon_inspect()
2701 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_miimon_inspect()
2706 slave->delay--; in bond_miimon_inspect()
2713 bond_propose_link_state(slave, BOND_LINK_BACK); in bond_miimon_inspect()
2715 slave->delay = bond->params.updelay; in bond_miimon_inspect()
2717 if (slave->delay && net_ratelimit()) { in bond_miimon_inspect()
2718 slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n", in bond_miimon_inspect()
2720 bond->params.updelay * in bond_miimon_inspect()
2721 bond->params.miimon); in bond_miimon_inspect()
2726 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_miimon_inspect()
2728 slave_info(bond->dev, slave->dev, "link status down again after %d ms\n", in bond_miimon_inspect()
2729 (bond->params.updelay - slave->delay) * in bond_miimon_inspect()
2730 bond->params.miimon); in bond_miimon_inspect()
2736 slave->delay = 0; in bond_miimon_inspect()
2738 if (slave->delay <= 0) { in bond_miimon_inspect()
2739 bond_propose_link_state(slave, BOND_LINK_UP); in bond_miimon_inspect()
2745 slave->delay--; in bond_miimon_inspect()
2754 struct slave *slave, in bond_miimon_link_change() argument
2759 bond_3ad_handle_link_change(slave, link); in bond_miimon_link_change()
2763 bond_alb_handle_link_change(bond, slave, link); in bond_miimon_link_change()
2773 struct slave *slave, *primary, *active; in bond_miimon_commit() local
2779 bond_for_each_slave(bond, slave, iter) { in bond_miimon_commit()
2780 switch (slave->link_new_state) { in bond_miimon_commit()
2782 /* For 802.3ad mode, check current slave speed and in bond_miimon_commit()
2789 slave->link == BOND_LINK_UP) in bond_miimon_commit()
2790 bond_3ad_adapter_speed_duplex_changed(slave); in bond_miimon_commit()
2794 if (bond_update_speed_duplex(slave) && in bond_miimon_commit()
2796 slave->link = BOND_LINK_DOWN; in bond_miimon_commit()
2798 slave_warn(bond->dev, slave->dev, in bond_miimon_commit()
2802 bond_set_slave_link_state(slave, BOND_LINK_UP, in bond_miimon_commit()
2804 slave->last_link_up = jiffies; in bond_miimon_commit()
2806 primary = rtnl_dereference(bond->primary_slave); in bond_miimon_commit()
2809 bond_set_backup_slave(slave); in bond_miimon_commit()
2812 bond_set_active_slave(slave); in bond_miimon_commit()
2815 slave_info(bond->dev, slave->dev, "link status definitely up, %u Mbps %s duplex\n", in bond_miimon_commit()
2816 slave->speed == SPEED_UNKNOWN ? 0 : slave->speed, in bond_miimon_commit()
2817 slave->duplex ? "full" : "half"); in bond_miimon_commit()
2819 bond_miimon_link_change(bond, slave, BOND_LINK_UP); in bond_miimon_commit()
2821 active = rtnl_dereference(bond->curr_active_slave); in bond_miimon_commit()
2822 if (!active || slave == primary || slave->prio > active->prio) in bond_miimon_commit()
2828 if (slave->link_failure_count < UINT_MAX) in bond_miimon_commit()
2829 slave->link_failure_count++; in bond_miimon_commit()
2831 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_miimon_commit()
2836 bond_set_slave_inactive_flags(slave, in bond_miimon_commit()
2839 slave_info(bond->dev, slave->dev, "link status definitely down, disabling slave\n"); in bond_miimon_commit()
2841 bond_miimon_link_change(bond, slave, BOND_LINK_DOWN); in bond_miimon_commit()
2843 if (slave == rcu_access_pointer(bond->curr_active_slave)) in bond_miimon_commit()
2849 slave_err(bond->dev, slave->dev, "invalid new link %d on slave\n", in bond_miimon_commit()
2850 slave->link_new_state); in bond_miimon_commit()
2851 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_miimon_commit()
2880 struct slave *slave; in bond_mii_monitor() local
2883 delay = msecs_to_jiffies(bond->params.miimon); in bond_mii_monitor()
2895 if (commit || bond->send_peer_notif) { in bond_mii_monitor()
2903 bond_for_each_slave(bond, slave, iter) { in bond_mii_monitor()
2904 bond_commit_link_state(slave, in bond_mii_monitor()
2910 if (bond->send_peer_notif) { in bond_mii_monitor()
2911 bond->send_peer_notif--; in bond_mii_monitor()
2914 bond->dev); in bond_mii_monitor()
2921 if (bond->params.miimon) in bond_mii_monitor()
2922 queue_delayed_work(bond->wq, &bond->mii_work, delay); in bond_mii_monitor()
2928 __be32 ip = *(__be32 *)priv->data; in bond_upper_dev_walk()
2940 if (ip == bond_confirm_addr(bond->dev, 0, ip)) in bond_has_this_ip()
2944 if (netdev_walk_all_upper_dev_rcu(bond->dev, bond_upper_dev_walk, &priv)) in bond_has_this_ip()
2953 static bool bond_handle_vlan(struct slave *slave, struct bond_vlan_tag *tags, in bond_handle_vlan() argument
2956 struct net_device *bond_dev = slave->bond->dev; in bond_handle_vlan()
2957 struct net_device *slave_dev = slave->dev; in bond_handle_vlan()
2960 if (!tags || tags->vlan_proto == BOND_VLAN_PROTO_NONE) in bond_handle_vlan()
2966 while (tags->vlan_proto != BOND_VLAN_PROTO_NONE) { in bond_handle_vlan()
2967 if (!tags->vlan_id) { in bond_handle_vlan()
2973 ntohs(outer_tag->vlan_proto), tags->vlan_id); in bond_handle_vlan()
2974 skb = vlan_insert_tag_set_proto(skb, tags->vlan_proto, in bond_handle_vlan()
2975 tags->vlan_id); in bond_handle_vlan()
2984 if (outer_tag->vlan_id) { in bond_handle_vlan()
2986 ntohs(outer_tag->vlan_proto), outer_tag->vlan_id); in bond_handle_vlan()
2987 __vlan_hwaccel_put_tag(skb, outer_tag->vlan_proto, in bond_handle_vlan()
2988 outer_tag->vlan_id); in bond_handle_vlan()
2995 * switches in VLAN mode (especially if ports are configured as
2996 * "native" to a VLAN) might not pass non-tagged frames.
2998 static void bond_arp_send(struct slave *slave, int arp_op, __be32 dest_ip, in bond_arp_send() argument
3001 struct net_device *bond_dev = slave->bond->dev; in bond_arp_send()
3002 struct net_device *slave_dev = slave->dev; in bond_arp_send()
3005 slave_dbg(bond_dev, slave_dev, "arp %d on slave: dst %pI4 src %pI4\n", in bond_arp_send()
3009 NULL, slave_dev->dev_addr, NULL); in bond_arp_send()
3016 if (bond_handle_vlan(slave, tags, skb)) { in bond_arp_send()
3017 slave_update_last_tx(slave); in bond_arp_send()
3041 return ERR_PTR(-ENOMEM); in bond_verify_device_path()
3064 static void bond_arp_send_all(struct bonding *bond, struct slave *slave) in bond_arp_send_all() argument
3068 __be32 *targets = bond->params.arp_targets, addr; in bond_arp_send_all()
3072 slave_dbg(bond->dev, slave->dev, "%s: target %pI4\n", in bond_arp_send_all()
3077 rt = ip_route_output(dev_net(bond->dev), targets[i], 0, 0, 0, in bond_arp_send_all()
3080 /* there's no route to target - try to send arp in bond_arp_send_all()
3083 if (bond->params.arp_validate) in bond_arp_send_all()
3085 bond->dev->name, in bond_arp_send_all()
3087 bond_arp_send(slave, ARPOP_REQUEST, targets[i], in bond_arp_send_all()
3093 if (rt->dst.dev == bond->dev) in bond_arp_send_all()
3097 tags = bond_verify_device_path(bond->dev, rt->dst.dev, 0); in bond_arp_send_all()
3103 /* Not our device - skip */ in bond_arp_send_all()
3104 slave_dbg(bond->dev, slave->dev, "no path to arp_ip_target %pI4 via rt.dev %s\n", in bond_arp_send_all()
3105 &targets[i], rt->dst.dev ? rt->dst.dev->name : "NULL"); in bond_arp_send_all()
3111 addr = bond_confirm_addr(rt->dst.dev, targets[i], 0); in bond_arp_send_all()
3113 bond_arp_send(slave, ARPOP_REQUEST, targets[i], addr, tags); in bond_arp_send_all()
3118 static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32 sip, __be32 tip) in bond_validate_arp() argument
3123 slave_dbg(bond->dev, slave->dev, "%s: sip %pI4 tip %pI4 not found\n", in bond_validate_arp()
3128 i = bond_get_targets_ip(bond->params.arp_targets, sip); in bond_validate_arp()
3129 if (i == -1) { in bond_validate_arp()
3130 slave_dbg(bond->dev, slave->dev, "%s: sip %pI4 not found in targets\n", in bond_validate_arp()
3134 slave->last_rx = jiffies; in bond_validate_arp()
3135 slave->target_last_arp_rx[i] = jiffies; in bond_validate_arp()
3139 struct slave *slave) in bond_arp_rcv() argument
3141 struct arphdr *arp = (struct arphdr *)skb->data; in bond_arp_rcv()
3142 struct slave *curr_active_slave, *curr_arp_slave; in bond_arp_rcv()
3147 alen = arp_hdr_len(bond->dev); in bond_arp_rcv()
3157 if (arp->ar_hln != bond->dev->addr_len || in bond_arp_rcv()
3158 skb->pkt_type == PACKET_OTHERHOST || in bond_arp_rcv()
3159 skb->pkt_type == PACKET_LOOPBACK || in bond_arp_rcv()
3160 arp->ar_hrd != htons(ARPHRD_ETHER) || in bond_arp_rcv()
3161 arp->ar_pro != htons(ETH_P_IP) || in bond_arp_rcv()
3162 arp->ar_pln != 4) in bond_arp_rcv()
3166 arp_ptr += bond->dev->addr_len; in bond_arp_rcv()
3168 arp_ptr += 4 + bond->dev->addr_len; in bond_arp_rcv()
3171 slave_dbg(bond->dev, slave->dev, "%s: %s/%d av %d sv %d sip %pI4 tip %pI4\n", in bond_arp_rcv()
3172 __func__, slave->dev->name, bond_slave_state(slave), in bond_arp_rcv()
3173 bond->params.arp_validate, slave_do_arp_validate(bond, slave), in bond_arp_rcv()
3176 curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_arp_rcv()
3177 curr_arp_slave = rcu_dereference(bond->current_arp_slave); in bond_arp_rcv()
3181 * (a) the slave receiving the ARP is active (which includes the in bond_arp_rcv()
3182 * current ARP slave, if any), or in bond_arp_rcv()
3184 * (b) the receiving slave isn't active, but there is a currently in bond_arp_rcv()
3185 * active slave and it received valid arp reply(s) after it became in bond_arp_rcv()
3186 * the currently active slave, or in bond_arp_rcv()
3188 * (c) there is an ARP slave that sent an ARP during the prior ARP in bond_arp_rcv()
3189 * interval, and we receive an ARP reply on any slave. We accept in bond_arp_rcv()
3191 * reply to a slave other than the sender of the ARP request. in bond_arp_rcv()
3195 * slave through the L2 switch(es) to the receiving slave. Since in bond_arp_rcv()
3202 if (bond_is_active_slave(slave)) in bond_arp_rcv()
3203 bond_validate_arp(bond, slave, sip, tip); in bond_arp_rcv()
3206 curr_active_slave->last_link_up)) in bond_arp_rcv()
3207 bond_validate_arp(bond, slave, tip, sip); in bond_arp_rcv()
3208 else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) && in bond_arp_rcv()
3210 bond_validate_arp(bond, slave, sip, tip); in bond_arp_rcv()
3213 if (arp != (struct arphdr *)skb->data) in bond_arp_rcv()
3219 static void bond_ns_send(struct slave *slave, const struct in6_addr *daddr, in bond_ns_send() argument
3222 struct net_device *bond_dev = slave->bond->dev; in bond_ns_send()
3223 struct net_device *slave_dev = slave->dev; in bond_ns_send()
3227 slave_dbg(bond_dev, slave_dev, "NS on slave: dst %pI6c src %pI6c\n", in bond_ns_send()
3237 if (bond_handle_vlan(slave, tags, skb)) { in bond_ns_send()
3238 slave_update_last_tx(slave); in bond_ns_send()
3243 static void bond_ns_send_all(struct bonding *bond, struct slave *slave) in bond_ns_send_all() argument
3245 struct in6_addr *targets = bond->params.ns_targets; in bond_ns_send_all()
3253 slave_dbg(bond->dev, slave->dev, "%s: target %pI6c\n", in bond_ns_send_all()
3261 dst = ip6_route_output(dev_net(bond->dev), NULL, &fl6); in bond_ns_send_all()
3262 if (dst->error) { in bond_ns_send_all()
3264 /* there's no route to target - try to send arp in bond_ns_send_all()
3267 if (bond->params.arp_validate) in bond_ns_send_all()
3269 bond->dev->name, in bond_ns_send_all()
3271 bond_ns_send(slave, &targets[i], &in6addr_any, tags); in bond_ns_send_all()
3276 if (dst->dev == bond->dev) in bond_ns_send_all()
3280 tags = bond_verify_device_path(bond->dev, dst->dev, 0); in bond_ns_send_all()
3286 /* Not our device - skip */ in bond_ns_send_all()
3287 slave_dbg(bond->dev, slave->dev, "no path to ns_ip6_target %pI6c via dst->dev %s\n", in bond_ns_send_all()
3288 &targets[i], dst->dev ? dst->dev->name : "NULL"); in bond_ns_send_all()
3294 if (!ipv6_dev_get_saddr(dev_net(dst->dev), dst->dev, &targets[i], 0, &saddr)) in bond_ns_send_all()
3295 bond_ns_send(slave, &targets[i], &saddr, tags); in bond_ns_send_all()
3297 bond_ns_send(slave, &targets[i], &in6addr_any, tags); in bond_ns_send_all()
3307 struct in6_addr *addr = (struct in6_addr *)priv->data; in bond_confirm_addr6()
3319 if (bond_confirm_addr6(bond->dev, &priv)) in bond_has_this_ip6()
3323 if (netdev_walk_all_upper_dev_rcu(bond->dev, bond_confirm_addr6, &priv)) in bond_has_this_ip6()
3330 static void bond_validate_na(struct bonding *bond, struct slave *slave, in bond_validate_na() argument
3337 * 2. Dest address is neither all-nodes multicast address nor in bond_validate_na()
3343 slave_dbg(bond->dev, slave->dev, "%s: sip %pI6c tip %pI6c not found\n", in bond_validate_na()
3348 i = bond_get_targets_ip6(bond->params.ns_targets, saddr); in bond_validate_na()
3349 if (i == -1) { in bond_validate_na()
3350 slave_dbg(bond->dev, slave->dev, "%s: sip %pI6c not found in targets\n", in bond_validate_na()
3354 slave->last_rx = jiffies; in bond_validate_na()
3355 slave->target_last_arp_rx[i] = jiffies; in bond_validate_na()
3359 struct slave *slave) in bond_na_rcv() argument
3361 struct slave *curr_active_slave, *curr_arp_slave; in bond_na_rcv()
3368 if (skb->pkt_type == PACKET_OTHERHOST || in bond_na_rcv()
3369 skb->pkt_type == PACKET_LOOPBACK) in bond_na_rcv()
3373 if (!combined || combined->ip6.nexthdr != NEXTHDR_ICMP || in bond_na_rcv()
3374 (combined->icmp6.icmp6_type != NDISC_NEIGHBOUR_SOLICITATION && in bond_na_rcv()
3375 combined->icmp6.icmp6_type != NDISC_NEIGHBOUR_ADVERTISEMENT)) in bond_na_rcv()
3378 saddr = &combined->ip6.saddr; in bond_na_rcv()
3379 daddr = &combined->ip6.daddr; in bond_na_rcv()
3381 slave_dbg(bond->dev, slave->dev, "%s: %s/%d av %d sv %d sip %pI6c tip %pI6c\n", in bond_na_rcv()
3382 __func__, slave->dev->name, bond_slave_state(slave), in bond_na_rcv()
3383 bond->params.arp_validate, slave_do_arp_validate(bond, slave), in bond_na_rcv()
3386 curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_na_rcv()
3387 curr_arp_slave = rcu_dereference(bond->current_arp_slave); in bond_na_rcv()
3392 if (bond_is_active_slave(slave)) in bond_na_rcv()
3393 bond_validate_na(bond, slave, saddr, daddr); in bond_na_rcv()
3396 curr_active_slave->last_link_up)) in bond_na_rcv()
3397 bond_validate_na(bond, slave, daddr, saddr); in bond_na_rcv()
3400 bond_validate_na(bond, slave, saddr, daddr); in bond_na_rcv()
3408 struct slave *slave) in bond_rcv_validate() argument
3411 bool is_ipv6 = skb->protocol == __cpu_to_be16(ETH_P_IPV6); in bond_rcv_validate()
3413 bool is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP); in bond_rcv_validate()
3415 slave_dbg(bond->dev, slave->dev, "%s: skb->dev %s\n", in bond_rcv_validate()
3416 __func__, skb->dev->name); in bond_rcv_validate()
3419 if (!slave_do_arp_validate(bond, slave)) { in bond_rcv_validate()
3425 slave->last_rx = jiffies; in bond_rcv_validate()
3428 return bond_arp_rcv(skb, bond, slave); in bond_rcv_validate()
3431 return bond_na_rcv(skb, bond, slave); in bond_rcv_validate()
3438 static void bond_send_validate(struct bonding *bond, struct slave *slave) in bond_send_validate() argument
3440 bond_arp_send_all(bond, slave); in bond_send_validate()
3442 bond_ns_send_all(bond, slave); in bond_send_validate()
3447 * (last_act - arp_interval) <= jiffies <= (last_act + mod * arp_interval +
3453 int delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval); in bond_time_in_interval()
3456 last_act - delta_in_ticks, in bond_time_in_interval()
3460 /* This function is called regularly to monitor each slave's link
3462 * is used in load-balancing mode. if the adapter has been dormant, then an
3464 * arp monitoring in active backup mode.
3468 struct slave *slave, *oldcurrent; in bond_loadbalance_arp_mon() local
3477 oldcurrent = rcu_dereference(bond->curr_active_slave); in bond_loadbalance_arp_mon()
3480 * the picture unless it is null. also, slave->last_link_up is not in bond_loadbalance_arp_mon()
3481 * needed here because we send an arp on each slave and give a slave in bond_loadbalance_arp_mon()
3483 * TODO: what about up/down delay in arp mode? it wasn't here before in bond_loadbalance_arp_mon()
3486 bond_for_each_slave_rcu(bond, slave, iter) { in bond_loadbalance_arp_mon()
3487 unsigned long last_tx = slave_last_tx(slave); in bond_loadbalance_arp_mon()
3489 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_loadbalance_arp_mon()
3491 if (slave->link != BOND_LINK_UP) { in bond_loadbalance_arp_mon()
3493 bond_time_in_interval(bond, slave->last_rx, 1)) { in bond_loadbalance_arp_mon()
3495 bond_propose_link_state(slave, BOND_LINK_UP); in bond_loadbalance_arp_mon()
3498 /* primary_slave has no meaning in round-robin in bond_loadbalance_arp_mon()
3499 * mode. the window of a slave being up and in bond_loadbalance_arp_mon()
3504 slave_info(bond->dev, slave->dev, "link status definitely up\n"); in bond_loadbalance_arp_mon()
3507 slave_info(bond->dev, slave->dev, "interface is now up\n"); in bond_loadbalance_arp_mon()
3511 /* slave->link == BOND_LINK_UP */ in bond_loadbalance_arp_mon()
3517 if (!bond_time_in_interval(bond, last_tx, bond->params.missed_max) || in bond_loadbalance_arp_mon()
3518 !bond_time_in_interval(bond, slave->last_rx, bond->params.missed_max)) { in bond_loadbalance_arp_mon()
3520 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_loadbalance_arp_mon()
3523 if (slave->link_failure_count < UINT_MAX) in bond_loadbalance_arp_mon()
3524 slave->link_failure_count++; in bond_loadbalance_arp_mon()
3526 slave_info(bond->dev, slave->dev, "interface is now down\n"); in bond_loadbalance_arp_mon()
3528 if (slave == oldcurrent) in bond_loadbalance_arp_mon()
3533 /* note: if switch is in round-robin mode, all links in bond_loadbalance_arp_mon()
3534 * must tx arp to ensure all links rx an arp - otherwise in bond_loadbalance_arp_mon()
3536 * in something like xor mode, there is nothing we can in bond_loadbalance_arp_mon()
3537 * do - all replies will be rx'ed on same link causing slaves in bond_loadbalance_arp_mon()
3540 if (bond_slave_is_up(slave)) in bond_loadbalance_arp_mon()
3541 bond_send_validate(bond, slave); in bond_loadbalance_arp_mon()
3550 bond_for_each_slave(bond, slave, iter) { in bond_loadbalance_arp_mon()
3551 if (slave->link_new_state != BOND_LINK_NOCHANGE) in bond_loadbalance_arp_mon()
3552 slave->link = slave->link_new_state; in bond_loadbalance_arp_mon()
3569 if (bond->params.arp_interval) in bond_loadbalance_arp_mon()
3570 queue_delayed_work(bond->wq, &bond->arp_work, in bond_loadbalance_arp_mon()
3571 msecs_to_jiffies(bond->params.arp_interval)); in bond_loadbalance_arp_mon()
3574 /* Called to inspect slaves for active-backup mode ARP monitor link state
3576 * should take place for the slave. Returns 0 if no changes are found, >0
3585 struct slave *slave; in bond_ab_arp_inspect() local
3588 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_inspect()
3589 bond_propose_link_state(slave, BOND_LINK_NOCHANGE); in bond_ab_arp_inspect()
3590 last_rx = slave_last_rx(bond, slave); in bond_ab_arp_inspect()
3592 if (slave->link != BOND_LINK_UP) { in bond_ab_arp_inspect()
3594 bond_propose_link_state(slave, BOND_LINK_UP); in bond_ab_arp_inspect()
3596 } else if (slave->link == BOND_LINK_BACK) { in bond_ab_arp_inspect()
3597 bond_propose_link_state(slave, BOND_LINK_FAIL); in bond_ab_arp_inspect()
3607 if (bond_time_in_interval(bond, slave->last_link_up, 2)) in bond_ab_arp_inspect()
3610 /* Backup slave is down if: in bond_ab_arp_inspect()
3611 * - No current_arp_slave AND in bond_ab_arp_inspect()
3612 * - more than (missed_max+1)*delta since last receive AND in bond_ab_arp_inspect()
3613 * - the bond has an IP address in bond_ab_arp_inspect()
3615 * Note: a non-null current_arp_slave indicates in bond_ab_arp_inspect()
3618 * we only take the curr_active_slave down - this in bond_ab_arp_inspect()
3619 * gives each slave a chance to tx/rx traffic in bond_ab_arp_inspect()
3622 if (!bond_is_active_slave(slave) && in bond_ab_arp_inspect()
3623 !rcu_access_pointer(bond->current_arp_slave) && in bond_ab_arp_inspect()
3624 !bond_time_in_interval(bond, last_rx, bond->params.missed_max + 1)) { in bond_ab_arp_inspect()
3625 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_ab_arp_inspect()
3629 /* Active slave is down if: in bond_ab_arp_inspect()
3630 * - more than missed_max*delta since transmitting OR in bond_ab_arp_inspect()
3631 * - (more than missed_max*delta since receive AND in bond_ab_arp_inspect()
3634 last_tx = slave_last_tx(slave); in bond_ab_arp_inspect()
3635 if (bond_is_active_slave(slave) && in bond_ab_arp_inspect()
3636 (!bond_time_in_interval(bond, last_tx, bond->params.missed_max) || in bond_ab_arp_inspect()
3637 !bond_time_in_interval(bond, last_rx, bond->params.missed_max))) { in bond_ab_arp_inspect()
3638 bond_propose_link_state(slave, BOND_LINK_DOWN); in bond_ab_arp_inspect()
3647 * active-backup mode ARP monitor.
3656 struct slave *slave; in bond_ab_arp_commit() local
3658 bond_for_each_slave(bond, slave, iter) { in bond_ab_arp_commit()
3659 switch (slave->link_new_state) { in bond_ab_arp_commit()
3664 last_tx = slave_last_tx(slave); in bond_ab_arp_commit()
3665 if (rtnl_dereference(bond->curr_active_slave) != slave || in bond_ab_arp_commit()
3666 (!rtnl_dereference(bond->curr_active_slave) && in bond_ab_arp_commit()
3668 struct slave *current_arp_slave; in bond_ab_arp_commit()
3670 current_arp_slave = rtnl_dereference(bond->current_arp_slave); in bond_ab_arp_commit()
3671 bond_set_slave_link_state(slave, BOND_LINK_UP, in bond_ab_arp_commit()
3677 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3680 slave_info(bond->dev, slave->dev, "link status definitely up\n"); in bond_ab_arp_commit()
3682 if (!rtnl_dereference(bond->curr_active_slave) || in bond_ab_arp_commit()
3683 slave == rtnl_dereference(bond->primary_slave) || in bond_ab_arp_commit()
3684 slave->prio > rtnl_dereference(bond->curr_active_slave)->prio) in bond_ab_arp_commit()
3692 if (slave->link_failure_count < UINT_MAX) in bond_ab_arp_commit()
3693 slave->link_failure_count++; in bond_ab_arp_commit()
3695 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_ab_arp_commit()
3697 bond_set_slave_inactive_flags(slave, in bond_ab_arp_commit()
3700 slave_info(bond->dev, slave->dev, "link status definitely down, disabling slave\n"); in bond_ab_arp_commit()
3702 if (slave == rtnl_dereference(bond->curr_active_slave)) { in bond_ab_arp_commit()
3703 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3710 bond_set_slave_link_state(slave, BOND_LINK_FAIL, in bond_ab_arp_commit()
3712 bond_set_slave_inactive_flags(slave, in bond_ab_arp_commit()
3715 /* A slave has just been enslaved and has become in bond_ab_arp_commit()
3716 * the current active slave. in bond_ab_arp_commit()
3718 if (rtnl_dereference(bond->curr_active_slave)) in bond_ab_arp_commit()
3719 RCU_INIT_POINTER(bond->current_arp_slave, NULL); in bond_ab_arp_commit()
3723 slave_err(bond->dev, slave->dev, in bond_ab_arp_commit()
3724 "impossible: link_new_state %d on slave\n", in bond_ab_arp_commit()
3725 slave->link_new_state); in bond_ab_arp_commit()
3739 /* Send ARP probes for active-backup mode ARP monitor.
3745 struct slave *slave, *before = NULL, *new_slave = NULL, in bond_ab_arp_probe() local
3746 *curr_arp_slave = rcu_dereference(bond->current_arp_slave), in bond_ab_arp_probe()
3747 *curr_active_slave = rcu_dereference(bond->curr_active_slave); in bond_ab_arp_probe()
3753 netdev_info(bond->dev, "PROBE: c_arp %s && cas %s BAD\n", in bond_ab_arp_probe()
3754 curr_arp_slave->dev->name, in bond_ab_arp_probe()
3755 curr_active_slave->dev->name); in bond_ab_arp_probe()
3763 * backup slave from the current_arp_slave and make it the candidate in bond_ab_arp_probe()
3773 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_probe()
3774 if (!found && !before && bond_slave_is_up(slave)) in bond_ab_arp_probe()
3775 before = slave; in bond_ab_arp_probe()
3777 if (found && !new_slave && bond_slave_is_up(slave)) in bond_ab_arp_probe()
3778 new_slave = slave; in bond_ab_arp_probe()
3780 * mark it down - this can happen if we have in bond_ab_arp_probe()
3783 * one the current slave so it is still marked in bond_ab_arp_probe()
3786 if (!bond_slave_is_up(slave) && slave->link == BOND_LINK_UP) { in bond_ab_arp_probe()
3787 bond_set_slave_link_state(slave, BOND_LINK_DOWN, in bond_ab_arp_probe()
3789 if (slave->link_failure_count < UINT_MAX) in bond_ab_arp_probe()
3790 slave->link_failure_count++; in bond_ab_arp_probe()
3792 bond_set_slave_inactive_flags(slave, in bond_ab_arp_probe()
3795 slave_info(bond->dev, slave->dev, "backup interface is now down\n"); in bond_ab_arp_probe()
3797 if (slave == curr_arp_slave) in bond_ab_arp_probe()
3811 new_slave->last_link_up = jiffies; in bond_ab_arp_probe()
3812 rcu_assign_pointer(bond->current_arp_slave, new_slave); in bond_ab_arp_probe()
3815 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ab_arp_probe()
3816 if (slave->should_notify || slave->should_notify_link) { in bond_ab_arp_probe()
3830 delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval); in bond_activebackup_arp_mon()
3859 if (bond->params.arp_interval) in bond_activebackup_arp_mon()
3860 queue_delayed_work(bond->wq, &bond->arp_work, delta_in_ticks); in bond_activebackup_arp_mon()
3867 bond->send_peer_notif--; in bond_activebackup_arp_mon()
3869 bond->dev); in bond_activebackup_arp_mon()
3891 /*-------------------------- netdev event handling --------------------------*/
3933 struct slave *slave = bond_slave_get_rtnl(slave_dev), *primary; in bond_slave_netdev_event() local
3939 * slave will be NULL in bond_slave_netdev_event()
3941 if (!slave) { in bond_slave_netdev_event()
3942 netdev_dbg(slave_dev, "%s called on NULL slave\n", __func__); in bond_slave_netdev_event()
3946 bond_dev = slave->bond->dev; in bond_slave_netdev_event()
3947 bond = slave->bond; in bond_slave_netdev_event()
3948 primary = rtnl_dereference(bond->primary_slave); in bond_slave_netdev_event()
3954 if (bond_dev->type != ARPHRD_ETHER) in bond_slave_netdev_event()
3961 /* For 802.3ad mode only: in bond_slave_netdev_event()
3962 * Getting invalid Speed/Duplex values here will put slave in bond_slave_netdev_event()
3963 * in weird state. Mark it as link-fail if the link was in bond_slave_netdev_event()
3964 * previously up or link-down if it hasn't yet come up, and in bond_slave_netdev_event()
3965 * let link-monitoring (miimon) set it right when correct in bond_slave_netdev_event()
3968 if (bond_update_speed_duplex(slave) && in bond_slave_netdev_event()
3970 if (slave->last_link_up) in bond_slave_netdev_event()
3971 slave->link = BOND_LINK_FAIL; in bond_slave_netdev_event()
3973 slave->link = BOND_LINK_DOWN; in bond_slave_netdev_event()
3977 bond_3ad_adapter_speed_duplex_changed(slave); in bond_slave_netdev_event()
3980 /* Refresh slave-array if applicable! in bond_slave_netdev_event()
3981 * If the setup does not use miimon or arpmon (mode-specific!), in bond_slave_netdev_event()
3982 * then these events will not cause the slave-array to be in bond_slave_netdev_event()
3983 * refreshed. This will cause xmit to use a slave that is not in bond_slave_netdev_event()
3994 * an active-backup bond, slaves need in bond_slave_netdev_event()
3999 * take over the slave's change_mtu in bond_slave_netdev_event()
4007 !bond->params.primary[0]) in bond_slave_netdev_event()
4010 if (slave == primary) { in bond_slave_netdev_event()
4011 /* slave's name changed - he's no longer primary */ in bond_slave_netdev_event()
4012 RCU_INIT_POINTER(bond->primary_slave, NULL); in bond_slave_netdev_event()
4013 } else if (!strcmp(slave_dev->name, bond->params.primary)) { in bond_slave_netdev_event()
4014 /* we have a new primary slave */ in bond_slave_netdev_event()
4015 rcu_assign_pointer(bond->primary_slave, slave); in bond_slave_netdev_event()
4016 } else { /* we didn't change primary - exit */ in bond_slave_netdev_event()
4020 netdev_info(bond->dev, "Primary slave changed to %s, reselecting active slave\n", in bond_slave_netdev_event()
4021 primary ? slave_dev->name : "none"); in bond_slave_netdev_event()
4028 if (!bond->notifier_ctx) { in bond_slave_netdev_event()
4029 bond->notifier_ctx = true; in bond_slave_netdev_event()
4031 bond->notifier_ctx = false; in bond_slave_netdev_event()
4036 call_netdevice_notifiers(event, slave->bond->dev); in bond_slave_netdev_event()
4052 * locks for us to safely manipulate the slave devices (RTNL lock,
4063 if (!(event_dev->priv_flags & IFF_BONDING)) in bond_netdev_event()
4066 if (event_dev->flags & IFF_MASTER) { in bond_netdev_event()
4074 if (event_dev->flags & IFF_SLAVE) in bond_netdev_event()
4084 /*---------------------------- Hashing Policies -----------------------------*/
4095 return skb->data; in bond_pull_data()
4110 return ep->h_dest[5] ^ ep->h_source[5] ^ be16_to_cpu(ep->h_proto); in bond_eth_hash()
4126 *nhoff += iph->ihl << 2; in bond_flow_ip()
4128 *ip_proto = iph->protocol; in bond_flow_ip()
4137 *ip_proto = iph6->nexthdr; in bond_flow_ip()
4143 fk->ports.ports = skb_flow_get_ports(skb, *nhoff, *ip_proto, data, hlen); in bond_flow_ip()
4161 srcmac_vendor = (srcmac_vendor << 8) | mac_hdr->h_source[i]; in bond_vlan_srcmac_hash()
4164 srcmac_dev = (srcmac_dev << 8) | mac_hdr->h_source[i]; in bond_vlan_srcmac_hash()
4176 bool l34 = bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34; in bond_flow_dissect()
4177 int ip_proto = -1; in bond_flow_dissect()
4179 switch (bond->params.xmit_policy) { in bond_flow_dissect()
4189 fk->ports.ports = 0; in bond_flow_dissect()
4190 memset(&fk->icmp, 0, sizeof(fk->icmp)); in bond_flow_dissect()
4200 skb_flow_get_icmp_tci(skb, &fk->icmp, data, nhoff, hlen); in bond_flow_dissect()
4202 if (!icmp_is_err(fk->icmp.type)) in bond_flow_dissect()
4207 if (!icmpv6_is_err(fk->icmp.type)) in bond_flow_dissect()
4243 if (bond->params.xmit_policy == BOND_XMIT_POLICY_VLAN_SRCMAC) in __bond_xmit_hash()
4246 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER2 || in __bond_xmit_hash()
4250 if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER23 || in __bond_xmit_hash()
4251 bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP23) { in __bond_xmit_hash()
4260 return bond_ip_hash(hash, &flow, bond->params.xmit_policy); in __bond_xmit_hash()
4264 * bond_xmit_hash - generate a hash value based on the xmit policy
4273 if (bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP34 && in bond_xmit_hash()
4274 skb->l4_hash) in bond_xmit_hash()
4275 return skb->hash; in bond_xmit_hash()
4277 return __bond_xmit_hash(bond, skb, skb->data, skb->protocol, in bond_xmit_hash()
4283 * bond_xmit_hash_xdp - generate a hash value based on the xmit policy
4293 if (xdp->data + sizeof(struct ethhdr) > xdp->data_end) in bond_xmit_hash_xdp()
4296 eth = (struct ethhdr *)xdp->data; in bond_xmit_hash_xdp()
4298 return __bond_xmit_hash(bond, NULL, xdp->data, eth->h_proto, 0, in bond_xmit_hash_xdp()
4299 sizeof(struct ethhdr), xdp->data_end - xdp->data); in bond_xmit_hash_xdp()
4302 /*-------------------------- Device entry points ----------------------------*/
4306 INIT_DELAYED_WORK(&bond->mcast_work, in bond_work_init_all()
4308 INIT_DELAYED_WORK(&bond->alb_work, bond_alb_monitor); in bond_work_init_all()
4309 INIT_DELAYED_WORK(&bond->mii_work, bond_mii_monitor); in bond_work_init_all()
4310 INIT_DELAYED_WORK(&bond->arp_work, bond_arp_monitor); in bond_work_init_all()
4311 INIT_DELAYED_WORK(&bond->ad_work, bond_3ad_state_machine_handler); in bond_work_init_all()
4312 INIT_DELAYED_WORK(&bond->slave_arr_work, bond_slave_arr_handler); in bond_work_init_all()
4317 cancel_delayed_work_sync(&bond->mii_work); in bond_work_cancel_all()
4318 cancel_delayed_work_sync(&bond->arp_work); in bond_work_cancel_all()
4319 cancel_delayed_work_sync(&bond->alb_work); in bond_work_cancel_all()
4320 cancel_delayed_work_sync(&bond->ad_work); in bond_work_cancel_all()
4321 cancel_delayed_work_sync(&bond->mcast_work); in bond_work_cancel_all()
4322 cancel_delayed_work_sync(&bond->slave_arr_work); in bond_work_cancel_all()
4329 struct slave *slave; in bond_open() local
4331 if (BOND_MODE(bond) == BOND_MODE_ROUNDROBIN && !bond->rr_tx_counter) { in bond_open()
4332 bond->rr_tx_counter = alloc_percpu(u32); in bond_open()
4333 if (!bond->rr_tx_counter) in bond_open()
4334 return -ENOMEM; in bond_open()
4337 /* reset slave->backup and slave->inactive */ in bond_open()
4339 bond_for_each_slave(bond, slave, iter) { in bond_open()
4341 slave != rcu_access_pointer(bond->curr_active_slave)) { in bond_open()
4342 bond_set_slave_inactive_flags(slave, in bond_open()
4345 bond_set_slave_active_flags(slave, in bond_open()
4356 return -ENOMEM; in bond_open()
4357 if (bond->params.tlb_dynamic_lb || BOND_MODE(bond) == BOND_MODE_ALB) in bond_open()
4358 queue_delayed_work(bond->wq, &bond->alb_work, 0); in bond_open()
4361 if (bond->params.miimon) /* link check interval, in milliseconds. */ in bond_open()
4362 queue_delayed_work(bond->wq, &bond->mii_work, 0); in bond_open()
4364 if (bond->params.arp_interval) { /* arp interval, in milliseconds. */ in bond_open()
4365 queue_delayed_work(bond->wq, &bond->arp_work, 0); in bond_open()
4366 bond->recv_probe = bond_rcv_validate; in bond_open()
4370 queue_delayed_work(bond->wq, &bond->ad_work, 0); in bond_open()
4372 bond->recv_probe = bond_3ad_lacpdu_recv; in bond_open()
4375 bond_for_each_slave(bond, slave, iter) in bond_open()
4376 dev_mc_add(slave->dev, lacpdu_mcast_addr); in bond_open()
4378 if (bond->params.broadcast_neighbor) in bond_open()
4391 struct slave *slave; in bond_close() local
4394 bond->send_peer_notif = 0; in bond_close()
4397 bond->recv_probe = NULL; in bond_close()
4400 bond->params.broadcast_neighbor) in bond_close()
4405 slave = rcu_dereference(bond->curr_active_slave); in bond_close()
4406 if (slave) in bond_close()
4407 bond_hw_addr_flush(bond_dev, slave->dev); in bond_close()
4412 bond_for_each_slave(bond, slave, iter) in bond_close()
4413 bond_hw_addr_flush(bond_dev, slave->dev); in bond_close()
4434 s64 delta = nv - ov; in bond_fold_stats()
4438 delta = (s64)(s32)((u32)nv - (u32)ov); in bond_fold_stats()
4456 iter = &dev->adj_list.lower; in bond_get_lowest_level_rcu()
4466 niter = &ldev->adj_list.lower; in bond_get_lowest_level_rcu()
4477 next = dev_stack[--cur]; in bond_get_lowest_level_rcu()
4495 struct slave *slave; in bond_get_stats() local
4504 spin_lock_nested(&bond->stats_lock, nest_level); in bond_get_stats()
4505 memcpy(stats, &bond->bond_stats, sizeof(*stats)); in bond_get_stats()
4507 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_stats()
4509 dev_get_stats(slave->dev, &temp); in bond_get_stats()
4511 bond_fold_stats(stats, new, &slave->slave_stats); in bond_get_stats()
4513 /* save off the slave stats for the next run */ in bond_get_stats()
4514 memcpy(&slave->slave_stats, new, sizeof(*new)); in bond_get_stats()
4517 memcpy(&bond->bond_stats, stats, sizeof(*stats)); in bond_get_stats()
4518 spin_unlock(&bond->stats_lock); in bond_get_stats()
4533 return -EINVAL; in bond_eth_ioctl()
4535 mii->phy_id = 0; in bond_eth_ioctl()
4543 return -EINVAL; in bond_eth_ioctl()
4545 if (mii->reg_num == 1) { in bond_eth_ioctl()
4546 mii->val_out = 0; in bond_eth_ioctl()
4547 if (netif_carrier_ok(bond->dev)) in bond_eth_ioctl()
4548 mii->val_out = BMSR_LSTATUS; in bond_eth_ioctl()
4553 return -EOPNOTSUPP; in bond_eth_ioctl()
4575 u_binfo = (struct ifbond __user *)ifr->ifr_data; in bond_do_ioctl()
4578 return -EFAULT; in bond_do_ioctl()
4582 return -EFAULT; in bond_do_ioctl()
4586 u_sinfo = (struct ifslave __user *)ifr->ifr_data; in bond_do_ioctl()
4589 return -EFAULT; in bond_do_ioctl()
4594 return -EFAULT; in bond_do_ioctl()
4603 if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) in bond_do_ioctl()
4604 return -EPERM; in bond_do_ioctl()
4606 slave_dev = __dev_get_by_name(net, ifr->ifr_slave); in bond_do_ioctl()
4611 return -ENODEV; in bond_do_ioctl()
4624 bond_opt_initstr(&newval, slave_dev->name); in bond_do_ioctl()
4629 res = -EOPNOTSUPP; in bond_do_ioctl()
4655 return -EOPNOTSUPP; in bond_siocdevprivate()
4664 bond_dev->flags & IFF_PROMISC ? 1 : -1); in bond_change_rx_flags()
4668 bond_dev->flags & IFF_ALLMULTI ? 1 : -1); in bond_change_rx_flags()
4675 struct slave *slave; in bond_set_rx_mode() local
4679 slave = rcu_dereference(bond->curr_active_slave); in bond_set_rx_mode()
4680 if (slave) { in bond_set_rx_mode()
4681 dev_uc_sync(slave->dev, bond_dev); in bond_set_rx_mode()
4682 dev_mc_sync(slave->dev, bond_dev); in bond_set_rx_mode()
4685 bond_for_each_slave_rcu(bond, slave, iter) { in bond_set_rx_mode()
4686 dev_uc_sync_multiple(slave->dev, bond_dev); in bond_set_rx_mode()
4687 dev_mc_sync_multiple(slave->dev, bond_dev); in bond_set_rx_mode()
4695 struct bonding *bond = netdev_priv(n->dev); in bond_neigh_init()
4698 struct slave *slave; in bond_neigh_init() local
4702 slave = bond_first_slave_rcu(bond); in bond_neigh_init()
4703 if (!slave) in bond_neigh_init()
4705 slave_ops = slave->dev->netdev_ops; in bond_neigh_init()
4706 if (!slave_ops->ndo_neigh_setup) in bond_neigh_init()
4718 ret = slave_ops->ndo_neigh_setup(slave->dev, &parms); in bond_neigh_init()
4731 * slave exists. So we must declare proxy setup function which will
4732 * be used at run time to resolve the actual slave neigh param setup.
4735 * underlying devices. In that case - do nothing, we're already set up from
4742 if (parms->dev == dev) in bond_neigh_setup()
4743 parms->neigh_setup = bond_neigh_init; in bond_neigh_setup()
4752 struct slave *slave, *rollback_slave; in bond_change_mtu() local
4758 bond_for_each_slave(bond, slave, iter) { in bond_change_mtu()
4759 slave_dbg(bond_dev, slave->dev, "s %p c_m %p\n", in bond_change_mtu()
4760 slave, slave->dev->netdev_ops->ndo_change_mtu); in bond_change_mtu()
4762 res = dev_set_mtu(slave->dev, new_mtu); in bond_change_mtu()
4765 /* If we failed to set the slave's mtu to the new value in bond_change_mtu()
4767 * mode, because if we allow the backup slaves to have in bond_change_mtu()
4768 * different mtu values than the active slave we'll in bond_change_mtu()
4773 slave_dbg(bond_dev, slave->dev, "err %d setting mtu to %d\n", in bond_change_mtu()
4779 WRITE_ONCE(bond_dev->mtu, new_mtu); in bond_change_mtu()
4784 /* unwind from head to the slave that failed */ in bond_change_mtu()
4788 if (rollback_slave == slave) in bond_change_mtu()
4791 tmp_res = dev_set_mtu(rollback_slave->dev, bond_dev->mtu); in bond_change_mtu()
4793 slave_dbg(bond_dev, rollback_slave->dev, "unwind err %d\n", in bond_change_mtu()
4809 struct slave *slave, *rollback_slave; in bond_set_mac_address() local
4823 if (bond->params.fail_over_mac && in bond_set_mac_address()
4827 if (!is_valid_ether_addr(ss->__data)) in bond_set_mac_address()
4828 return -EADDRNOTAVAIL; in bond_set_mac_address()
4830 bond_for_each_slave(bond, slave, iter) { in bond_set_mac_address()
4831 slave_dbg(bond_dev, slave->dev, "%s: slave=%p\n", in bond_set_mac_address()
4832 __func__, slave); in bond_set_mac_address()
4833 res = dev_set_mac_address(slave->dev, addr, NULL); in bond_set_mac_address()
4835 /* TODO: consider downing the slave in bond_set_mac_address()
4841 slave_dbg(bond_dev, slave->dev, "%s: err %d\n", in bond_set_mac_address()
4848 dev_addr_set(bond_dev, ss->__data); in bond_set_mac_address()
4852 memcpy(tmp_ss.__data, bond_dev->dev_addr, bond_dev->addr_len); in bond_set_mac_address()
4853 tmp_ss.ss_family = bond_dev->type; in bond_set_mac_address()
4855 /* unwind from head to the slave that failed */ in bond_set_mac_address()
4859 if (rollback_slave == slave) in bond_set_mac_address()
4862 tmp_res = dev_set_mac_address(rollback_slave->dev, &tmp_ss, NULL); in bond_set_mac_address()
4864 slave_dbg(bond_dev, rollback_slave->dev, "%s: unwind err %d\n", in bond_set_mac_address()
4873 * bond_get_slave_by_id - get xmit slave with slave_id
4875 * @slave_id: slave id up to slave_cnt-1 through which to transmit
4877 * This function tries to get slave with slave_id but in case
4878 * it fails, it tries to find the first available slave for transmission.
4880 static struct slave *bond_get_slave_by_id(struct bonding *bond, in bond_get_slave_by_id()
4884 struct slave *slave; in bond_get_slave_by_id() local
4887 /* Here we start from the slave with slave_id */ in bond_get_slave_by_id()
4888 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_slave_by_id()
4889 if (--i < 0) { in bond_get_slave_by_id()
4890 if (bond_slave_can_tx(slave)) in bond_get_slave_by_id()
4891 return slave; in bond_get_slave_by_id()
4895 /* Here we start from the first slave up to slave_id */ in bond_get_slave_by_id()
4897 bond_for_each_slave_rcu(bond, slave, iter) { in bond_get_slave_by_id()
4898 if (--i < 0) in bond_get_slave_by_id()
4900 if (bond_slave_can_tx(slave)) in bond_get_slave_by_id()
4901 return slave; in bond_get_slave_by_id()
4903 /* no slave that can tx has been found */ in bond_get_slave_by_id()
4908 * bond_rr_gen_slave_id - generate slave id based on packets_per_slave
4912 * this function generates a slave id, which is usually used as the next
4913 * slave to transmit through.
4919 int packets_per_slave = bond->params.packets_per_slave; in bond_rr_gen_slave_id()
4926 slave_id = this_cpu_inc_return(*bond->rr_tx_counter); in bond_rr_gen_slave_id()
4930 bond->params.reciprocal_packets_per_slave; in bond_rr_gen_slave_id()
4931 slave_id = this_cpu_inc_return(*bond->rr_tx_counter); in bond_rr_gen_slave_id()
4940 static struct slave *bond_xmit_roundrobin_slave_get(struct bonding *bond, in bond_xmit_roundrobin_slave_get()
4943 struct slave *slave; in bond_xmit_roundrobin_slave_get() local
4953 if (skb->protocol == htons(ETH_P_IP)) { in bond_xmit_roundrobin_slave_get()
4961 if (iph->protocol == IPPROTO_IGMP) { in bond_xmit_roundrobin_slave_get()
4962 slave = rcu_dereference(bond->curr_active_slave); in bond_xmit_roundrobin_slave_get()
4963 if (slave) in bond_xmit_roundrobin_slave_get()
4964 return slave; in bond_xmit_roundrobin_slave_get()
4970 slave_cnt = READ_ONCE(bond->slave_cnt); in bond_xmit_roundrobin_slave_get()
4978 static struct slave *bond_xdp_xmit_roundrobin_slave_get(struct bonding *bond, in bond_xdp_xmit_roundrobin_slave_get()
4981 struct slave *slave; in bond_xdp_xmit_roundrobin_slave_get() local
4985 void *data = xdp->data; in bond_xdp_xmit_roundrobin_slave_get()
4987 if (data + sizeof(struct ethhdr) > xdp->data_end) in bond_xdp_xmit_roundrobin_slave_get()
4994 if (eth->h_proto == htons(ETH_P_IP)) { in bond_xdp_xmit_roundrobin_slave_get()
4997 if (data + sizeof(struct iphdr) > xdp->data_end) in bond_xdp_xmit_roundrobin_slave_get()
5002 if (iph->protocol == IPPROTO_IGMP) { in bond_xdp_xmit_roundrobin_slave_get()
5003 slave = rcu_dereference(bond->curr_active_slave); in bond_xdp_xmit_roundrobin_slave_get()
5004 if (slave) in bond_xdp_xmit_roundrobin_slave_get()
5005 return slave; in bond_xdp_xmit_roundrobin_slave_get()
5011 slave_cnt = READ_ONCE(bond->slave_cnt); in bond_xdp_xmit_roundrobin_slave_get()
5023 struct slave *slave; in bond_xmit_roundrobin() local
5025 slave = bond_xmit_roundrobin_slave_get(bond, skb); in bond_xmit_roundrobin()
5026 if (likely(slave)) in bond_xmit_roundrobin()
5027 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_xmit_roundrobin()
5032 static struct slave *bond_xmit_activebackup_slave_get(struct bonding *bond) in bond_xmit_activebackup_slave_get()
5034 return rcu_dereference(bond->curr_active_slave); in bond_xmit_activebackup_slave_get()
5037 /* In active-backup mode, we know that bond->curr_active_slave is always valid if
5044 struct slave *slave; in bond_xmit_activebackup() local
5046 slave = bond_xmit_activebackup_slave_get(bond); in bond_xmit_activebackup()
5047 if (slave) in bond_xmit_activebackup()
5048 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_xmit_activebackup()
5059 queue_delayed_work(bond->wq, &bond->slave_arr_work, delay); in bond_slave_arr_work_rearm()
5062 /* Slave array work handler. Holds only RTNL */
5075 pr_warn_ratelimited("Failed to update slave array from WT\n"); in bond_slave_arr_handler()
5085 struct slave *skipslave) in bond_skip_slave()
5090 * slave but allocation failed (most likely!). BTW this is in bond_skip_slave()
5095 * this to-be-skipped slave to send a packet out. in bond_skip_slave()
5097 for (idx = 0; slaves && idx < slaves->count; idx++) { in bond_skip_slave()
5098 if (skipslave == slaves->arr[idx]) { in bond_skip_slave()
5099 slaves->arr[idx] = in bond_skip_slave()
5100 slaves->arr[slaves->count - 1]; in bond_skip_slave()
5101 slaves->count--; in bond_skip_slave()
5113 usable = rtnl_dereference(bond->usable_slaves); in bond_set_slave_arr()
5114 rcu_assign_pointer(bond->usable_slaves, usable_slaves); in bond_set_slave_arr()
5117 all = rtnl_dereference(bond->all_slaves); in bond_set_slave_arr()
5118 rcu_assign_pointer(bond->all_slaves, all_slaves); in bond_set_slave_arr()
5127 /* Build the usable slaves array in control path for modes that use xmit-hash
5128 * to determine the slave interface -
5135 int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) in bond_update_slave_arr()
5138 struct slave *slave; in bond_update_slave_arr() local
5146 bond->slave_cnt), GFP_KERNEL); in bond_update_slave_arr()
5148 bond->slave_cnt), GFP_KERNEL); in bond_update_slave_arr()
5150 ret = -ENOMEM; in bond_update_slave_arr()
5156 spin_lock_bh(&bond->mode_lock); in bond_update_slave_arr()
5158 spin_unlock_bh(&bond->mode_lock); in bond_update_slave_arr()
5166 spin_unlock_bh(&bond->mode_lock); in bond_update_slave_arr()
5169 bond_for_each_slave(bond, slave, iter) { in bond_update_slave_arr()
5170 if (skipslave == slave) in bond_update_slave_arr()
5173 all_slaves->arr[all_slaves->count++] = slave; in bond_update_slave_arr()
5177 agg = SLAVE_AD_INFO(slave)->port.aggregator; in bond_update_slave_arr()
5178 if (!agg || agg->aggregator_identifier != agg_id) in bond_update_slave_arr()
5181 if (!bond_slave_can_tx(slave)) in bond_update_slave_arr()
5184 slave_dbg(bond->dev, slave->dev, "Adding slave to tx hash array[%d]\n", in bond_update_slave_arr()
5185 usable_slaves->count); in bond_update_slave_arr()
5187 usable_slaves->arr[usable_slaves->count++] = slave; in bond_update_slave_arr()
5194 bond_skip_slave(rtnl_dereference(bond->all_slaves), in bond_update_slave_arr()
5196 bond_skip_slave(rtnl_dereference(bond->usable_slaves), in bond_update_slave_arr()
5205 static struct slave *bond_xmit_3ad_xor_slave_get(struct bonding *bond, in bond_xmit_3ad_xor_slave_get()
5209 struct slave *slave; in bond_xmit_3ad_xor_slave_get() local
5214 count = slaves ? READ_ONCE(slaves->count) : 0; in bond_xmit_3ad_xor_slave_get()
5218 slave = slaves->arr[hash % count]; in bond_xmit_3ad_xor_slave_get()
5219 return slave; in bond_xmit_3ad_xor_slave_get()
5222 static struct slave *bond_xdp_xmit_3ad_xor_slave_get(struct bonding *bond, in bond_xdp_xmit_3ad_xor_slave_get()
5230 slaves = rcu_dereference(bond->usable_slaves); in bond_xdp_xmit_3ad_xor_slave_get()
5231 count = slaves ? READ_ONCE(slaves->count) : 0; in bond_xdp_xmit_3ad_xor_slave_get()
5235 return slaves->arr[hash % count]; in bond_xdp_xmit_3ad_xor_slave_get()
5250 if (!bond->params.broadcast_neighbor) in bond_should_broadcast_neighbor()
5253 if (skb->protocol == htons(ETH_P_ARP)) in bond_should_broadcast_neighbor()
5256 if (skb->protocol == htons(ETH_P_IPV6)) { in bond_should_broadcast_neighbor()
5260 if (combined && combined->ip6.nexthdr == NEXTHDR_ICMP && in bond_should_broadcast_neighbor()
5261 (combined->icmp6.icmp6_type == NDISC_NEIGHBOUR_SOLICITATION || in bond_should_broadcast_neighbor()
5262 combined->icmp6.icmp6_type == NDISC_NEIGHBOUR_ADVERTISEMENT)) in bond_should_broadcast_neighbor()
5270 * usable slave array is formed in the control path. The xmit function
5278 struct slave *slave; in bond_3ad_xor_xmit() local
5280 slaves = rcu_dereference(bond->usable_slaves); in bond_3ad_xor_xmit()
5281 slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves); in bond_3ad_xor_xmit()
5282 if (likely(slave)) in bond_3ad_xor_xmit()
5283 return bond_dev_queue_xmit(bond, skb, slave->dev); in bond_3ad_xor_xmit()
5288 /* in broadcast mode, we send everything to all or usable slave interfaces.
5302 slaves = rcu_dereference(bond->all_slaves); in bond_xmit_broadcast()
5304 slaves = rcu_dereference(bond->usable_slaves); in bond_xmit_broadcast()
5306 slaves_count = slaves ? READ_ONCE(slaves->count) : 0; in bond_xmit_broadcast()
5308 struct slave *slave = slaves->arr[i]; in bond_xmit_broadcast() local
5311 if (!(bond_slave_is_up(slave) && slave->link == BOND_LINK_UP)) in bond_xmit_broadcast()
5314 if (bond_is_last_slave(bond, slave)) { in bond_xmit_broadcast()
5321 bond_dev->name, __func__); in bond_xmit_broadcast()
5326 if (bond_dev_queue_xmit(bond, skb2, slave->dev) == NETDEV_TX_OK) in bond_xmit_broadcast()
5340 /*------------------------- Device initialization ---------------------------*/
5342 /* Lookup the slave that corresponds to a qid */
5346 struct slave *slave = NULL; in bond_slave_override() local
5353 bond_for_each_slave_rcu(bond, slave, iter) { in bond_slave_override()
5354 if (READ_ONCE(slave->queue_id) == skb_get_queue_mapping(skb)) { in bond_slave_override()
5355 if (bond_slave_is_up(slave) && in bond_slave_override()
5356 slave->link == BOND_LINK_UP) { in bond_slave_override()
5357 bond_dev_queue_xmit(bond, skb, slave->dev); in bond_slave_override()
5360 /* If the slave isn't UP, use default transmit policy. */ in bond_slave_override()
5380 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb_get_queue_mapping(skb); in bond_select_queue()
5382 if (unlikely(txq >= dev->real_num_tx_queues)) { in bond_select_queue()
5384 txq -= dev->real_num_tx_queues; in bond_select_queue()
5385 } while (txq >= dev->real_num_tx_queues); in bond_select_queue()
5396 struct slave *slave = NULL; in bond_xmit_get_slave() local
5400 slave = bond_xmit_roundrobin_slave_get(bond, skb); in bond_xmit_get_slave()
5403 slave = bond_xmit_activebackup_slave_get(bond); in bond_xmit_get_slave()
5408 slaves = rcu_dereference(bond->all_slaves); in bond_xmit_get_slave()
5410 slaves = rcu_dereference(bond->usable_slaves); in bond_xmit_get_slave()
5411 slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves); in bond_xmit_get_slave()
5416 slave = bond_xmit_alb_slave_get(bond, skb); in bond_xmit_get_slave()
5419 slave = bond_xmit_tlb_slave_get(bond, skb); in bond_xmit_get_slave()
5422 /* Should never happen, mode already checked */ in bond_xmit_get_slave()
5423 WARN_ONCE(true, "Unknown bonding mode"); in bond_xmit_get_slave()
5427 if (slave) in bond_xmit_get_slave()
5428 return slave->dev; in bond_xmit_get_slave()
5434 switch (sk->sk_family) { in bond_sk_to_flow()
5438 ipv6_addr_type(&sk->sk_v6_daddr) != IPV6_ADDR_MAPPED) { in bond_sk_to_flow()
5439 flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; in bond_sk_to_flow()
5440 flow->addrs.v6addrs.src = inet6_sk(sk)->saddr; in bond_sk_to_flow()
5441 flow->addrs.v6addrs.dst = sk->sk_v6_daddr; in bond_sk_to_flow()
5447 flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; in bond_sk_to_flow()
5448 flow->addrs.v4addrs.src = inet_sk(sk)->inet_rcv_saddr; in bond_sk_to_flow()
5449 flow->addrs.v4addrs.dst = inet_sk(sk)->inet_daddr; in bond_sk_to_flow()
5453 flow->ports.src = inet_sk(sk)->inet_sport; in bond_sk_to_flow()
5454 flow->ports.dst = inet_sk(sk)->inet_dport; in bond_sk_to_flow()
5458 * bond_sk_hash_l34 - generate a hash value based on the socket's L3 and L4 fields
5482 struct slave *slave; in __bond_sk_get_lower_dev() local
5486 slaves = rcu_dereference(bond->usable_slaves); in __bond_sk_get_lower_dev()
5487 count = slaves ? READ_ONCE(slaves->count) : 0; in __bond_sk_get_lower_dev()
5492 slave = slaves->arr[hash % count]; in __bond_sk_get_lower_dev()
5494 return slave->dev; in __bond_sk_get_lower_dev()
5515 struct net_device *tls_netdev = rcu_dereference(tls_get_ctx(skb->sk)->netdev); in bond_tls_device_xmit()
5558 /* Should never happen, mode already checked */ in __bond_start_xmit()
5559 netdev_err(dev, "Unknown bonding mode %d\n", BOND_MODE(bond)); in __bond_start_xmit()
5590 struct slave *slave; in bond_xdp_get_xmit_slave() local
5596 slave = bond_xdp_xmit_roundrobin_slave_get(bond, xdp); in bond_xdp_get_xmit_slave()
5600 slave = bond_xmit_activebackup_slave_get(bond); in bond_xdp_get_xmit_slave()
5605 slave = bond_xdp_xmit_3ad_xor_slave_get(bond, xdp); in bond_xdp_get_xmit_slave()
5610 netdev_err(bond_dev, "Unknown bonding mode %d for xdp xmit\n", in bond_xdp_get_xmit_slave()
5615 if (slave) in bond_xdp_get_xmit_slave()
5616 return slave->dev; in bond_xdp_get_xmit_slave()
5624 int nxmit, err = -ENXIO; in bond_xdp_xmit()
5638 err = -ENXIO; in bond_xdp_xmit()
5642 err = slave_dev->netdev_ops->ndo_xdp_xmit(slave_dev, 1, frames1, flags); in bond_xdp_xmit()
5663 struct slave *slave, *rollback_slave; in bond_xdp_set() local
5677 "No native XDP support for the current bonding mode"); in bond_xdp_set()
5678 return -EOPNOTSUPP; in bond_xdp_set()
5681 old_prog = bond->xdp_prog; in bond_xdp_set()
5682 bond->xdp_prog = prog; in bond_xdp_set()
5684 bond_for_each_slave(bond, slave, iter) { in bond_xdp_set()
5685 struct net_device *slave_dev = slave->dev; in bond_xdp_set()
5687 if (!slave_dev->netdev_ops->ndo_bpf || in bond_xdp_set()
5688 !slave_dev->netdev_ops->ndo_xdp_xmit) { in bond_xdp_set()
5690 "Slave device does not support XDP"); in bond_xdp_set()
5691 err = -EOPNOTSUPP; in bond_xdp_set()
5697 "Slave has XDP program loaded, please unload before enslaving"); in bond_xdp_set()
5698 err = -EOPNOTSUPP; in bond_xdp_set()
5723 bond->xdp_prog = old_prog; in bond_xdp_set()
5728 struct net_device *slave_dev = rollback_slave->dev; in bond_xdp_set()
5731 if (slave == rollback_slave) in bond_xdp_set()
5746 switch (xdp->command) { in bond_xdp()
5748 return bond_xdp_set(dev, xdp->prog, xdp->extack); in bond_xdp()
5750 return -EINVAL; in bond_xdp()
5754 static u32 bond_mode_bcast_speed(struct slave *slave, u32 speed) in bond_mode_bcast_speed() argument
5757 speed = slave->speed; in bond_mode_bcast_speed()
5759 speed = min(speed, slave->speed); in bond_mode_bcast_speed()
5767 struct ifreq *ifr = kernel_cfg->ifr; in bond_set_phc_index_flag()
5770 if (kernel_cfg->copied_to_user) { in bond_set_phc_index_flag()
5772 if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) in bond_set_phc_index_flag()
5773 return -EFAULT; in bond_set_phc_index_flag()
5776 if (copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg))) in bond_set_phc_index_flag()
5777 return -EFAULT; in bond_set_phc_index_flag()
5779 kernel_cfg->flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX; in bond_set_phc_index_flag()
5794 return -EOPNOTSUPP; in bond_hwtstamp_get()
5811 if (!(cfg->flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX)) in bond_hwtstamp_set()
5812 return -EOPNOTSUPP; in bond_hwtstamp_set()
5816 return -EOPNOTSUPP; in bond_hwtstamp_set()
5830 struct slave *slave; in bond_ethtool_get_link_ksettings() local
5833 cmd->base.duplex = DUPLEX_UNKNOWN; in bond_ethtool_get_link_ksettings()
5834 cmd->base.port = PORT_OTHER; in bond_ethtool_get_link_ksettings()
5837 * do not need to check mode. Though link speed might not represent in bond_ethtool_get_link_ksettings()
5841 bond_for_each_slave(bond, slave, iter) { in bond_ethtool_get_link_ksettings()
5842 if (bond_slave_can_tx(slave)) { in bond_ethtool_get_link_ksettings()
5843 bond_update_speed_duplex(slave); in bond_ethtool_get_link_ksettings()
5844 if (slave->speed != SPEED_UNKNOWN) { in bond_ethtool_get_link_ksettings()
5846 speed = bond_mode_bcast_speed(slave, in bond_ethtool_get_link_ksettings()
5849 speed += slave->speed; in bond_ethtool_get_link_ksettings()
5851 if (cmd->base.duplex == DUPLEX_UNKNOWN && in bond_ethtool_get_link_ksettings()
5852 slave->duplex != DUPLEX_UNKNOWN) in bond_ethtool_get_link_ksettings()
5853 cmd->base.duplex = slave->duplex; in bond_ethtool_get_link_ksettings()
5856 cmd->base.speed = speed ? : SPEED_UNKNOWN; in bond_ethtool_get_link_ksettings()
5864 strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); in bond_ethtool_get_drvinfo()
5865 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d", in bond_ethtool_get_drvinfo()
5877 struct slave *slave; in bond_ethtool_get_ts_info() local
5890 bond_for_each_slave_rcu(bond, slave, iter) { in bond_ethtool_get_ts_info()
5891 ret = ethtool_get_ts_info_by_layer(slave->dev, &ts_info); in bond_ethtool_get_ts_info()
5904 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE; in bond_ethtool_get_ts_info()
5961 if (bond->wq) in bond_destructor()
5962 destroy_workqueue(bond->wq); in bond_destructor()
5964 free_percpu(bond->rr_tx_counter); in bond_destructor()
5971 spin_lock_init(&bond->mode_lock); in bond_setup()
5972 bond->params = bonding_defaults; in bond_setup()
5975 bond->dev = bond_dev; in bond_setup()
5979 bond_dev->max_mtu = ETH_MAX_MTU; in bond_setup()
5980 bond_dev->netdev_ops = &bond_netdev_ops; in bond_setup()
5981 bond_dev->ethtool_ops = &bond_ethtool_ops; in bond_setup()
5983 bond_dev->needs_free_netdev = true; in bond_setup()
5984 bond_dev->priv_destructor = bond_destructor; in bond_setup()
5989 bond_dev->flags |= IFF_MASTER; in bond_setup()
5990 bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT | IFF_NO_QUEUE; in bond_setup()
5991 bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); in bond_setup()
5994 /* set up xfrm device ops (only supported in active-backup right now) */ in bond_setup()
5995 bond_dev->xfrmdev_ops = &bond_xfrmdev_ops; in bond_setup()
5996 INIT_LIST_HEAD(&bond->ipsec_list); in bond_setup()
5997 mutex_init(&bond->ipsec_lock); in bond_setup()
6001 bond_dev->lltx = true; in bond_setup()
6004 bond_dev->netns_immutable = true; in bond_setup()
6013 bond_dev->hw_features = BOND_VLAN_FEATURES | in bond_setup()
6019 bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; in bond_setup()
6020 bond_dev->features |= bond_dev->hw_features; in bond_setup()
6021 bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; in bond_setup()
6022 bond_dev->features |= NETIF_F_GSO_PARTIAL; in bond_setup()
6024 bond_dev->hw_features |= BOND_XFRM_FEATURES; in bond_setup()
6025 /* Only enable XFRM features if this is an active-backup config */ in bond_setup()
6027 bond_dev->features |= BOND_XFRM_FEATURES; in bond_setup()
6038 struct slave *slave; in bond_uninit() local
6043 bond_for_each_slave(bond, slave, iter) in bond_uninit()
6044 __bond_release_one(bond_dev, slave->dev, true, true); in bond_uninit()
6048 mutex_destroy(&bond->ipsec_lock); in bond_uninit()
6053 list_del_rcu(&bond->bond_list); in bond_uninit()
6058 /*------------------------- Module initialization ---------------------------*/
6076 if (mode) { in bond_check_params()
6077 bond_opt_initstr(&newval, mode); in bond_check_params()
6080 pr_err("Error: Invalid bonding mode \"%s\"\n", mode); in bond_check_params()
6081 return -EINVAL; in bond_check_params()
6083 bond_mode = valptr->value; in bond_check_params()
6090 pr_info("xmit_hash_policy param is irrelevant in mode %s\n", in bond_check_params()
6099 return -EINVAL; in bond_check_params()
6101 xmit_hashtype = valptr->value; in bond_check_params()
6107 pr_info("lacp_rate param is irrelevant in mode %s\n", in bond_check_params()
6116 return -EINVAL; in bond_check_params()
6118 lacp_fast = valptr->value; in bond_check_params()
6128 return -EINVAL; in bond_check_params()
6130 params->ad_select = valptr->value; in bond_check_params()
6132 pr_warn("ad_select param only affects 802.3ad mode\n"); in bond_check_params()
6134 params->ad_select = BOND_AD_STABLE; in bond_check_params()
6138 …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()
6144 pr_warn("Warning: miimon module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6150 pr_warn("Warning: updelay module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6156 pr_warn("Warning: downdelay module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6164 return -EINVAL; in bond_check_params()
6168 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()
6208 …pr_notice("In ALB mode you might experience client disconnections upon reconnection of a link if t… in bond_check_params()
6245 pr_warn("Warning: arp_interval module parameter (%d), not in range 0-%d, so it was reset to 0\n", in bond_check_params()
6255 if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) || in bond_check_params()
6261 if (bond_get_targets_ip(arp_target, ip) == -1) in bond_check_params()
6279 return -EINVAL; in bond_check_params()
6288 return -EINVAL; in bond_check_params()
6290 arp_validate_value = valptr->value; in bond_check_params()
6304 arp_all_targets_value = valptr->value; in bond_check_params()
6314 arp_interval, valptr->string, arp_ip_count); in bond_check_params()
6332 pr_warn("Warning: %s primary device specified but has no effect in %s mode\n", in bond_check_params()
6344 return -EINVAL; in bond_check_params()
6346 primary_reselect_value = valptr->value; in bond_check_params()
6358 return -EINVAL; in bond_check_params()
6360 fail_over_mac_value = valptr->value; in bond_check_params()
6362 pr_warn("Warning: fail_over_mac only affects active-backup mode\n"); in bond_check_params()
6373 return -EINVAL; in bond_check_params()
6375 ad_actor_sys_prio = valptr->value; in bond_check_params()
6381 return -EINVAL; in bond_check_params()
6383 ad_user_port_key = valptr->value; in bond_check_params()
6389 return -EINVAL; in bond_check_params()
6391 tlb_dynamic_lb = valptr->value; in bond_check_params()
6400 params->mode = bond_mode; in bond_check_params()
6401 params->xmit_policy = xmit_hashtype; in bond_check_params()
6402 params->miimon = miimon; in bond_check_params()
6403 params->num_peer_notif = num_peer_notif; in bond_check_params()
6404 params->arp_interval = arp_interval; in bond_check_params()
6405 params->arp_validate = arp_validate_value; in bond_check_params()
6406 params->arp_all_targets = arp_all_targets_value; in bond_check_params()
6407 params->missed_max = 2; in bond_check_params()
6408 params->updelay = updelay; in bond_check_params()
6409 params->downdelay = downdelay; in bond_check_params()
6410 params->peer_notif_delay = 0; in bond_check_params()
6411 params->lacp_active = 1; in bond_check_params()
6412 params->lacp_fast = lacp_fast; in bond_check_params()
6413 params->primary[0] = 0; in bond_check_params()
6414 params->primary_reselect = primary_reselect_value; in bond_check_params()
6415 params->fail_over_mac = fail_over_mac_value; in bond_check_params()
6416 params->tx_queues = tx_queues; in bond_check_params()
6417 params->all_slaves_active = all_slaves_active; in bond_check_params()
6418 params->resend_igmp = resend_igmp; in bond_check_params()
6419 params->min_links = min_links; in bond_check_params()
6420 params->lp_interval = lp_interval; in bond_check_params()
6421 params->packets_per_slave = packets_per_slave; in bond_check_params()
6422 params->tlb_dynamic_lb = tlb_dynamic_lb; in bond_check_params()
6423 params->ad_actor_sys_prio = ad_actor_sys_prio; in bond_check_params()
6424 eth_zero_addr(params->ad_actor_system); in bond_check_params()
6425 params->ad_user_port_key = ad_user_port_key; in bond_check_params()
6426 params->coupled_control = 1; in bond_check_params()
6427 params->broadcast_neighbor = 0; in bond_check_params()
6429 params->reciprocal_packets_per_slave = in bond_check_params()
6435 params->reciprocal_packets_per_slave = in bond_check_params()
6440 strscpy_pad(params->primary, primary, sizeof(params->primary)); in bond_check_params()
6442 memcpy(params->arp_targets, arp_target, sizeof(arp_target)); in bond_check_params()
6444 memset(params->ns_targets, 0, sizeof(struct in6_addr) * BOND_MAX_NS_TARGETS); in bond_check_params()
6458 bond->wq = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, in bond_init()
6459 bond_dev->name); in bond_init()
6460 if (!bond->wq) in bond_init()
6461 return -ENOMEM; in bond_init()
6463 bond->notifier_ctx = false; in bond_init()
6465 spin_lock_init(&bond->stats_lock); in bond_init()
6468 list_add_tail_rcu(&bond->bond_list, &bn->dev_list); in bond_init()
6475 if (is_zero_ether_addr(bond_dev->dev_addr) && in bond_init()
6476 bond_dev->addr_assign_type == NET_ADDR_PERM) in bond_init()
6496 int res = -ENOMEM; in bond_create()
6508 bond_dev->rtnl_link_ops = &bond_link_ops; in bond_create()
6529 bn->net = net; in bond_net_init()
6530 INIT_LIST_HEAD(&bn->dev_list); in bond_net_init()
6556 list_for_each_entry_safe(bond, tmp_bond, &bn->dev_list, bond_list) in bond_net_exit_rtnl()
6557 unregister_netdevice_queue(bond->dev, dev_kill_list); in bond_net_exit_rtnl()