2 * drivers/net/team/team.c - Network team device driver
3 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <linux/rcupdate.h>
17 #include <linux/errno.h>
18 #include <linux/ctype.h>
19 #include <linux/notifier.h>
20 #include <linux/netdevice.h>
21 #include <linux/netpoll.h>
22 #include <linux/if_vlan.h>
23 #include <linux/if_arp.h>
24 #include <linux/socket.h>
25 #include <linux/etherdevice.h>
26 #include <linux/rtnetlink.h>
27 #include <net/rtnetlink.h>
28 #include <net/genetlink.h>
29 #include <net/netlink.h>
30 #include <net/sch_generic.h>
31 #include <net/switchdev.h>
32 #include <generated/utsrelease.h>
33 #include <linux/if_team.h>
35 #define DRV_NAME "team"
42 #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT)
44 static struct team_port *team_port_get_rtnl(const struct net_device *dev)
46 struct team_port *port = rtnl_dereference(dev->rx_handler_data);
48 return team_port_exists(dev) ? port : NULL;
52 * Since the ability to change device address for open port device is tested in
53 * team_port_add, this function can be called without control of return value
55 static int __set_port_dev_addr(struct net_device *port_dev,
56 const unsigned char *dev_addr)
58 struct sockaddr_storage addr;
60 memcpy(addr.__data, dev_addr, port_dev->addr_len);
61 addr.ss_family = port_dev->type;
62 return dev_set_mac_address(port_dev, (struct sockaddr *)&addr, NULL);
65 static int team_port_set_orig_dev_addr(struct team_port *port)
67 return __set_port_dev_addr(port->dev, port->orig.dev_addr);
70 static int team_port_set_team_dev_addr(struct team *team,
71 struct team_port *port)
73 return __set_port_dev_addr(port->dev, team->dev->dev_addr);
76 int team_modeop_port_enter(struct team *team, struct team_port *port)
78 return team_port_set_team_dev_addr(team, port);
80 EXPORT_SYMBOL(team_modeop_port_enter);
82 void team_modeop_port_change_dev_addr(struct team *team,
83 struct team_port *port)
85 team_port_set_team_dev_addr(team, port);
87 EXPORT_SYMBOL(team_modeop_port_change_dev_addr);
89 static void team_lower_state_changed(struct team_port *port)
91 struct netdev_lag_lower_state_info info;
93 info.link_up = port->linkup;
94 info.tx_enabled = team_port_enabled(port);
95 netdev_lower_state_changed(port->dev, &info);
98 static void team_refresh_port_linkup(struct team_port *port)
100 bool new_linkup = port->user.linkup_enabled ? port->user.linkup :
103 if (port->linkup != new_linkup) {
104 port->linkup = new_linkup;
105 team_lower_state_changed(port);
114 struct team_option_inst { /* One for each option instance */
115 struct list_head list;
116 struct list_head tmp_list;
117 struct team_option *option;
118 struct team_option_inst_info info;
123 static struct team_option *__team_find_option(struct team *team,
124 const char *opt_name)
126 struct team_option *option;
128 list_for_each_entry(option, &team->option_list, list) {
129 if (strcmp(option->name, opt_name) == 0)
135 static void __team_option_inst_del(struct team_option_inst *opt_inst)
137 list_del(&opt_inst->list);
141 static void __team_option_inst_del_option(struct team *team,
142 struct team_option *option)
144 struct team_option_inst *opt_inst, *tmp;
146 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
147 if (opt_inst->option == option)
148 __team_option_inst_del(opt_inst);
152 static int __team_option_inst_add(struct team *team, struct team_option *option,
153 struct team_port *port)
155 struct team_option_inst *opt_inst;
156 unsigned int array_size;
160 array_size = option->array_size;
162 array_size = 1; /* No array but still need one instance */
164 for (i = 0; i < array_size; i++) {
165 opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL);
168 opt_inst->option = option;
169 opt_inst->info.port = port;
170 opt_inst->info.array_index = i;
171 opt_inst->changed = true;
172 opt_inst->removed = false;
173 list_add_tail(&opt_inst->list, &team->option_inst_list);
175 err = option->init(team, &opt_inst->info);
184 static int __team_option_inst_add_option(struct team *team,
185 struct team_option *option)
189 if (!option->per_port) {
190 err = __team_option_inst_add(team, option, NULL);
192 goto inst_del_option;
197 __team_option_inst_del_option(team, option);
201 static void __team_option_inst_mark_removed_option(struct team *team,
202 struct team_option *option)
204 struct team_option_inst *opt_inst;
206 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
207 if (opt_inst->option == option) {
208 opt_inst->changed = true;
209 opt_inst->removed = true;
214 static void __team_option_inst_del_port(struct team *team,
215 struct team_port *port)
217 struct team_option_inst *opt_inst, *tmp;
219 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
220 if (opt_inst->option->per_port &&
221 opt_inst->info.port == port)
222 __team_option_inst_del(opt_inst);
226 static int __team_option_inst_add_port(struct team *team,
227 struct team_port *port)
229 struct team_option *option;
232 list_for_each_entry(option, &team->option_list, list) {
233 if (!option->per_port)
235 err = __team_option_inst_add(team, option, port);
242 __team_option_inst_del_port(team, port);
246 static void __team_option_inst_mark_removed_port(struct team *team,
247 struct team_port *port)
249 struct team_option_inst *opt_inst;
251 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
252 if (opt_inst->info.port == port) {
253 opt_inst->changed = true;
254 opt_inst->removed = true;
259 static int __team_options_register(struct team *team,
260 const struct team_option *option,
264 struct team_option **dst_opts;
267 dst_opts = kcalloc(option_count, sizeof(struct team_option *),
271 for (i = 0; i < option_count; i++, option++) {
272 if (__team_find_option(team, option->name)) {
276 dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL);
283 for (i = 0; i < option_count; i++) {
284 err = __team_option_inst_add_option(team, dst_opts[i]);
287 list_add_tail(&dst_opts[i]->list, &team->option_list);
294 for (i--; i >= 0; i--)
295 __team_option_inst_del_option(team, dst_opts[i]);
297 i = option_count - 1;
299 for (i--; i >= 0; i--)
306 static void __team_options_mark_removed(struct team *team,
307 const struct team_option *option,
312 for (i = 0; i < option_count; i++, option++) {
313 struct team_option *del_opt;
315 del_opt = __team_find_option(team, option->name);
317 __team_option_inst_mark_removed_option(team, del_opt);
321 static void __team_options_unregister(struct team *team,
322 const struct team_option *option,
327 for (i = 0; i < option_count; i++, option++) {
328 struct team_option *del_opt;
330 del_opt = __team_find_option(team, option->name);
332 __team_option_inst_del_option(team, del_opt);
333 list_del(&del_opt->list);
339 static void __team_options_change_check(struct team *team);
341 int team_options_register(struct team *team,
342 const struct team_option *option,
347 err = __team_options_register(team, option, option_count);
350 __team_options_change_check(team);
353 EXPORT_SYMBOL(team_options_register);
355 void team_options_unregister(struct team *team,
356 const struct team_option *option,
359 __team_options_mark_removed(team, option, option_count);
360 __team_options_change_check(team);
361 __team_options_unregister(team, option, option_count);
363 EXPORT_SYMBOL(team_options_unregister);
365 static int team_option_get(struct team *team,
366 struct team_option_inst *opt_inst,
367 struct team_gsetter_ctx *ctx)
369 if (!opt_inst->option->getter)
371 return opt_inst->option->getter(team, ctx);
374 static int team_option_set(struct team *team,
375 struct team_option_inst *opt_inst,
376 struct team_gsetter_ctx *ctx)
378 if (!opt_inst->option->setter)
380 return opt_inst->option->setter(team, ctx);
383 void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info)
385 struct team_option_inst *opt_inst;
387 opt_inst = container_of(opt_inst_info, struct team_option_inst, info);
388 opt_inst->changed = true;
390 EXPORT_SYMBOL(team_option_inst_set_change);
392 void team_options_change_check(struct team *team)
394 __team_options_change_check(team);
396 EXPORT_SYMBOL(team_options_change_check);
403 static LIST_HEAD(mode_list);
404 static DEFINE_SPINLOCK(mode_list_lock);
406 struct team_mode_item {
407 struct list_head list;
408 const struct team_mode *mode;
411 static struct team_mode_item *__find_mode(const char *kind)
413 struct team_mode_item *mitem;
415 list_for_each_entry(mitem, &mode_list, list) {
416 if (strcmp(mitem->mode->kind, kind) == 0)
422 static bool is_good_mode_name(const char *name)
424 while (*name != '\0') {
425 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
432 int team_mode_register(const struct team_mode *mode)
435 struct team_mode_item *mitem;
437 if (!is_good_mode_name(mode->kind) ||
438 mode->priv_size > TEAM_MODE_PRIV_SIZE)
441 mitem = kmalloc(sizeof(*mitem), GFP_KERNEL);
445 spin_lock(&mode_list_lock);
446 if (__find_mode(mode->kind)) {
452 list_add_tail(&mitem->list, &mode_list);
454 spin_unlock(&mode_list_lock);
457 EXPORT_SYMBOL(team_mode_register);
459 void team_mode_unregister(const struct team_mode *mode)
461 struct team_mode_item *mitem;
463 spin_lock(&mode_list_lock);
464 mitem = __find_mode(mode->kind);
466 list_del_init(&mitem->list);
469 spin_unlock(&mode_list_lock);
471 EXPORT_SYMBOL(team_mode_unregister);
473 static const struct team_mode *team_mode_get(const char *kind)
475 struct team_mode_item *mitem;
476 const struct team_mode *mode = NULL;
478 spin_lock(&mode_list_lock);
479 mitem = __find_mode(kind);
481 spin_unlock(&mode_list_lock);
482 request_module("team-mode-%s", kind);
483 spin_lock(&mode_list_lock);
484 mitem = __find_mode(kind);
488 if (!try_module_get(mode->owner))
492 spin_unlock(&mode_list_lock);
496 static void team_mode_put(const struct team_mode *mode)
498 module_put(mode->owner);
501 static bool team_dummy_transmit(struct team *team, struct sk_buff *skb)
503 dev_kfree_skb_any(skb);
507 static rx_handler_result_t team_dummy_receive(struct team *team,
508 struct team_port *port,
511 return RX_HANDLER_ANOTHER;
514 static const struct team_mode __team_no_mode = {
518 static bool team_is_mode_set(struct team *team)
520 return team->mode != &__team_no_mode;
523 static void team_set_no_mode(struct team *team)
525 team->user_carrier_enabled = false;
526 team->mode = &__team_no_mode;
529 static void team_adjust_ops(struct team *team)
532 * To avoid checks in rx/tx skb paths, ensure here that non-null and
533 * correct ops are always set.
536 if (!team->en_port_count || !team_is_mode_set(team) ||
537 !team->mode->ops->transmit)
538 team->ops.transmit = team_dummy_transmit;
540 team->ops.transmit = team->mode->ops->transmit;
542 if (!team->en_port_count || !team_is_mode_set(team) ||
543 !team->mode->ops->receive)
544 team->ops.receive = team_dummy_receive;
546 team->ops.receive = team->mode->ops->receive;
550 * We can benefit from the fact that it's ensured no port is present
551 * at the time of mode change. Therefore no packets are in fly so there's no
552 * need to set mode operations in any special way.
554 static int __team_change_mode(struct team *team,
555 const struct team_mode *new_mode)
557 /* Check if mode was previously set and do cleanup if so */
558 if (team_is_mode_set(team)) {
559 void (*exit_op)(struct team *team) = team->ops.exit;
561 /* Clear ops area so no callback is called any longer */
562 memset(&team->ops, 0, sizeof(struct team_mode_ops));
563 team_adjust_ops(team);
567 team_mode_put(team->mode);
568 team_set_no_mode(team);
569 /* zero private data area */
570 memset(&team->mode_priv, 0,
571 sizeof(struct team) - offsetof(struct team, mode_priv));
577 if (new_mode->ops->init) {
580 err = new_mode->ops->init(team);
585 team->mode = new_mode;
586 memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops));
587 team_adjust_ops(team);
592 static int team_change_mode(struct team *team, const char *kind)
594 const struct team_mode *new_mode;
595 struct net_device *dev = team->dev;
598 if (!list_empty(&team->port_list)) {
599 netdev_err(dev, "No ports can be present during mode change\n");
603 if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) {
604 netdev_err(dev, "Unable to change to the same mode the team is in\n");
608 new_mode = team_mode_get(kind);
610 netdev_err(dev, "Mode \"%s\" not found\n", kind);
614 err = __team_change_mode(team, new_mode);
616 netdev_err(dev, "Failed to change to mode \"%s\"\n", kind);
617 team_mode_put(new_mode);
621 netdev_info(dev, "Mode changed to \"%s\"\n", kind);
626 /*********************
628 *********************/
630 static void team_notify_peers_work(struct work_struct *work)
635 team = container_of(work, struct team, notify_peers.dw.work);
637 if (!rtnl_trylock()) {
638 schedule_delayed_work(&team->notify_peers.dw, 0);
641 val = atomic_dec_if_positive(&team->notify_peers.count_pending);
646 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev);
649 schedule_delayed_work(&team->notify_peers.dw,
650 msecs_to_jiffies(team->notify_peers.interval));
653 static void team_notify_peers(struct team *team)
655 if (!team->notify_peers.count || !netif_running(team->dev))
657 atomic_add(team->notify_peers.count, &team->notify_peers.count_pending);
658 schedule_delayed_work(&team->notify_peers.dw, 0);
661 static void team_notify_peers_init(struct team *team)
663 INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work);
666 static void team_notify_peers_fini(struct team *team)
668 cancel_delayed_work_sync(&team->notify_peers.dw);
672 /*******************************
673 * Send multicast group rejoins
674 *******************************/
676 static void team_mcast_rejoin_work(struct work_struct *work)
681 team = container_of(work, struct team, mcast_rejoin.dw.work);
683 if (!rtnl_trylock()) {
684 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
687 val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending);
692 call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev);
695 schedule_delayed_work(&team->mcast_rejoin.dw,
696 msecs_to_jiffies(team->mcast_rejoin.interval));
699 static void team_mcast_rejoin(struct team *team)
701 if (!team->mcast_rejoin.count || !netif_running(team->dev))
703 atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending);
704 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
707 static void team_mcast_rejoin_init(struct team *team)
709 INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work);
712 static void team_mcast_rejoin_fini(struct team *team)
714 cancel_delayed_work_sync(&team->mcast_rejoin.dw);
718 /************************
719 * Rx path frame handler
720 ************************/
722 /* note: already called with rcu_read_lock */
723 static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
725 struct sk_buff *skb = *pskb;
726 struct team_port *port;
728 rx_handler_result_t res;
730 skb = skb_share_check(skb, GFP_ATOMIC);
732 return RX_HANDLER_CONSUMED;
736 port = team_port_get_rcu(skb->dev);
738 if (!team_port_enabled(port)) {
739 /* allow exact match delivery for disabled ports */
740 res = RX_HANDLER_EXACT;
742 res = team->ops.receive(team, port, skb);
744 if (res == RX_HANDLER_ANOTHER) {
745 struct team_pcpu_stats *pcpu_stats;
747 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
748 u64_stats_update_begin(&pcpu_stats->syncp);
749 pcpu_stats->rx_packets++;
750 pcpu_stats->rx_bytes += skb->len;
751 if (skb->pkt_type == PACKET_MULTICAST)
752 pcpu_stats->rx_multicast++;
753 u64_stats_update_end(&pcpu_stats->syncp);
755 skb->dev = team->dev;
756 } else if (res == RX_HANDLER_EXACT) {
757 this_cpu_inc(team->pcpu_stats->rx_nohandler);
759 this_cpu_inc(team->pcpu_stats->rx_dropped);
766 /*************************************
767 * Multiqueue Tx port select override
768 *************************************/
770 static int team_queue_override_init(struct team *team)
772 struct list_head *listarr;
773 unsigned int queue_cnt = team->dev->num_tx_queues - 1;
778 listarr = kmalloc_array(queue_cnt, sizeof(struct list_head),
782 team->qom_lists = listarr;
783 for (i = 0; i < queue_cnt; i++)
784 INIT_LIST_HEAD(listarr++);
788 static void team_queue_override_fini(struct team *team)
790 kfree(team->qom_lists);
793 static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
795 return &team->qom_lists[queue_id - 1];
799 * note: already called with rcu_read_lock
801 static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
803 struct list_head *qom_list;
804 struct team_port *port;
806 if (!team->queue_override_enabled || !skb->queue_mapping)
808 qom_list = __team_get_qom_list(team, skb->queue_mapping);
809 list_for_each_entry_rcu(port, qom_list, qom_list) {
810 if (!team_dev_queue_xmit(team, port, skb))
816 static void __team_queue_override_port_del(struct team *team,
817 struct team_port *port)
821 list_del_rcu(&port->qom_list);
824 static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
825 struct team_port *cur)
827 if (port->priority < cur->priority)
829 if (port->priority > cur->priority)
831 if (port->index < cur->index)
836 static void __team_queue_override_port_add(struct team *team,
837 struct team_port *port)
839 struct team_port *cur;
840 struct list_head *qom_list;
841 struct list_head *node;
845 qom_list = __team_get_qom_list(team, port->queue_id);
847 list_for_each_entry(cur, qom_list, qom_list) {
848 if (team_queue_override_port_has_gt_prio_than(port, cur))
850 node = &cur->qom_list;
852 list_add_tail_rcu(&port->qom_list, node);
855 static void __team_queue_override_enabled_check(struct team *team)
857 struct team_port *port;
858 bool enabled = false;
860 list_for_each_entry(port, &team->port_list, list) {
861 if (port->queue_id) {
866 if (enabled == team->queue_override_enabled)
868 netdev_dbg(team->dev, "%s queue override\n",
869 enabled ? "Enabling" : "Disabling");
870 team->queue_override_enabled = enabled;
873 static void team_queue_override_port_prio_changed(struct team *team,
874 struct team_port *port)
876 if (!port->queue_id || team_port_enabled(port))
878 __team_queue_override_port_del(team, port);
879 __team_queue_override_port_add(team, port);
880 __team_queue_override_enabled_check(team);
883 static void team_queue_override_port_change_queue_id(struct team *team,
884 struct team_port *port,
887 if (team_port_enabled(port)) {
888 __team_queue_override_port_del(team, port);
889 port->queue_id = new_queue_id;
890 __team_queue_override_port_add(team, port);
891 __team_queue_override_enabled_check(team);
893 port->queue_id = new_queue_id;
897 static void team_queue_override_port_add(struct team *team,
898 struct team_port *port)
900 __team_queue_override_port_add(team, port);
901 __team_queue_override_enabled_check(team);
904 static void team_queue_override_port_del(struct team *team,
905 struct team_port *port)
907 __team_queue_override_port_del(team, port);
908 __team_queue_override_enabled_check(team);
916 static bool team_port_find(const struct team *team,
917 const struct team_port *port)
919 struct team_port *cur;
921 list_for_each_entry(cur, &team->port_list, list)
928 * Enable/disable port by adding to enabled port hashlist and setting
929 * port->index (Might be racy so reader could see incorrect ifindex when
930 * processing a flying packet, but that is not a problem). Write guarded
933 static void team_port_enable(struct team *team,
934 struct team_port *port)
936 if (team_port_enabled(port))
938 port->index = team->en_port_count++;
939 hlist_add_head_rcu(&port->hlist,
940 team_port_index_hash(team, port->index));
941 team_adjust_ops(team);
942 team_queue_override_port_add(team, port);
943 if (team->ops.port_enabled)
944 team->ops.port_enabled(team, port);
945 team_notify_peers(team);
946 team_mcast_rejoin(team);
947 team_lower_state_changed(port);
950 static void __reconstruct_port_hlist(struct team *team, int rm_index)
953 struct team_port *port;
955 for (i = rm_index + 1; i < team->en_port_count; i++) {
956 port = team_get_port_by_index(team, i);
957 hlist_del_rcu(&port->hlist);
959 hlist_add_head_rcu(&port->hlist,
960 team_port_index_hash(team, port->index));
964 static void team_port_disable(struct team *team,
965 struct team_port *port)
967 if (!team_port_enabled(port))
969 if (team->ops.port_disabled)
970 team->ops.port_disabled(team, port);
971 hlist_del_rcu(&port->hlist);
972 __reconstruct_port_hlist(team, port->index);
974 team->en_port_count--;
975 team_queue_override_port_del(team, port);
976 team_adjust_ops(team);
977 team_lower_state_changed(port);
980 #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
981 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
982 NETIF_F_HIGHDMA | NETIF_F_LRO)
984 #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
985 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
987 static void __team_compute_features(struct team *team)
989 struct team_port *port;
990 netdev_features_t vlan_features = TEAM_VLAN_FEATURES &
992 netdev_features_t enc_features = TEAM_ENC_FEATURES;
993 unsigned short max_hard_header_len = ETH_HLEN;
994 unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
995 IFF_XMIT_DST_RELEASE_PERM;
997 list_for_each_entry(port, &team->port_list, list) {
998 vlan_features = netdev_increment_features(vlan_features,
999 port->dev->vlan_features,
1000 TEAM_VLAN_FEATURES);
1002 netdev_increment_features(enc_features,
1003 port->dev->hw_enc_features,
1007 dst_release_flag &= port->dev->priv_flags;
1008 if (port->dev->hard_header_len > max_hard_header_len)
1009 max_hard_header_len = port->dev->hard_header_len;
1012 team->dev->vlan_features = vlan_features;
1013 team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
1015 team->dev->hard_header_len = max_hard_header_len;
1017 team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
1018 if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
1019 team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
1022 static void team_compute_features(struct team *team)
1024 mutex_lock(&team->lock);
1025 __team_compute_features(team);
1026 mutex_unlock(&team->lock);
1027 netdev_change_features(team->dev);
1030 static int team_port_enter(struct team *team, struct team_port *port)
1034 dev_hold(team->dev);
1035 if (team->ops.port_enter) {
1036 err = team->ops.port_enter(team, port);
1038 netdev_err(team->dev, "Device %s failed to enter team mode\n",
1040 goto err_port_enter;
1052 static void team_port_leave(struct team *team, struct team_port *port)
1054 if (team->ops.port_leave)
1055 team->ops.port_leave(team, port);
1059 #ifdef CONFIG_NET_POLL_CONTROLLER
1060 static int __team_port_enable_netpoll(struct team_port *port)
1065 np = kzalloc(sizeof(*np), GFP_KERNEL);
1069 err = __netpoll_setup(np, port->dev);
1078 static int team_port_enable_netpoll(struct team_port *port)
1080 if (!port->team->dev->npinfo)
1083 return __team_port_enable_netpoll(port);
1086 static void team_port_disable_netpoll(struct team_port *port)
1088 struct netpoll *np = port->np;
1097 static int team_port_enable_netpoll(struct team_port *port)
1101 static void team_port_disable_netpoll(struct team_port *port)
1106 static int team_upper_dev_link(struct team *team, struct team_port *port,
1107 struct netlink_ext_ack *extack)
1109 struct netdev_lag_upper_info lag_upper_info;
1112 lag_upper_info.tx_type = team->mode->lag_tx_type;
1113 lag_upper_info.hash_type = NETDEV_LAG_HASH_UNKNOWN;
1114 err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
1115 &lag_upper_info, extack);
1118 port->dev->priv_flags |= IFF_TEAM_PORT;
1122 static void team_upper_dev_unlink(struct team *team, struct team_port *port)
1124 netdev_upper_dev_unlink(port->dev, team->dev);
1125 port->dev->priv_flags &= ~IFF_TEAM_PORT;
1128 static void __team_port_change_port_added(struct team_port *port, bool linkup);
1129 static int team_dev_type_check_change(struct net_device *dev,
1130 struct net_device *port_dev);
1132 static int team_port_add(struct team *team, struct net_device *port_dev,
1133 struct netlink_ext_ack *extack)
1135 struct net_device *dev = team->dev;
1136 struct team_port *port;
1137 char *portname = port_dev->name;
1140 if (port_dev->flags & IFF_LOOPBACK) {
1141 NL_SET_ERR_MSG(extack, "Loopback device can't be added as a team port");
1142 netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
1147 if (team_port_exists(port_dev)) {
1148 NL_SET_ERR_MSG(extack, "Device is already a port of a team device");
1149 netdev_err(dev, "Device %s is already a port "
1150 "of a team device\n", portname);
1154 if (dev == port_dev) {
1155 NL_SET_ERR_MSG(extack, "Cannot enslave team device to itself");
1156 netdev_err(dev, "Cannot enslave team device to itself\n");
1160 if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
1161 vlan_uses_dev(dev)) {
1162 NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up");
1163 netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
1168 err = team_dev_type_check_change(dev, port_dev);
1172 if (port_dev->flags & IFF_UP) {
1173 NL_SET_ERR_MSG(extack, "Device is up. Set it down before adding it as a team port");
1174 netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
1179 port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
1184 port->dev = port_dev;
1186 INIT_LIST_HEAD(&port->qom_list);
1188 port->orig.mtu = port_dev->mtu;
1189 err = dev_set_mtu(port_dev, dev->mtu);
1191 netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err);
1195 memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
1197 err = team_port_enter(team, port);
1199 netdev_err(dev, "Device %s failed to enter team mode\n",
1201 goto err_port_enter;
1204 err = dev_open(port_dev, extack);
1206 netdev_dbg(dev, "Device %s opening failed\n",
1211 err = vlan_vids_add_by_dev(port_dev, dev);
1213 netdev_err(dev, "Failed to add vlan ids to device %s\n",
1218 err = team_port_enable_netpoll(port);
1220 netdev_err(dev, "Failed to enable netpoll on device %s\n",
1222 goto err_enable_netpoll;
1225 if (!(dev->features & NETIF_F_LRO))
1226 dev_disable_lro(port_dev);
1228 err = netdev_rx_handler_register(port_dev, team_handle_frame,
1231 netdev_err(dev, "Device %s failed to register rx_handler\n",
1233 goto err_handler_register;
1236 err = team_upper_dev_link(team, port, extack);
1238 netdev_err(dev, "Device %s failed to set upper link\n",
1240 goto err_set_upper_link;
1243 err = __team_option_inst_add_port(team, port);
1245 netdev_err(dev, "Device %s failed to add per-port options\n",
1247 goto err_option_port_add;
1250 netif_addr_lock_bh(dev);
1251 dev_uc_sync_multiple(port_dev, dev);
1252 dev_mc_sync_multiple(port_dev, dev);
1253 netif_addr_unlock_bh(dev);
1256 list_add_tail_rcu(&port->list, &team->port_list);
1257 team_port_enable(team, port);
1258 __team_compute_features(team);
1259 __team_port_change_port_added(port, !!netif_oper_up(port_dev));
1260 __team_options_change_check(team);
1262 netdev_info(dev, "Port device %s added\n", portname);
1266 err_option_port_add:
1267 team_upper_dev_unlink(team, port);
1270 netdev_rx_handler_unregister(port_dev);
1272 err_handler_register:
1273 team_port_disable_netpoll(port);
1276 vlan_vids_del_by_dev(port_dev, dev);
1279 dev_close(port_dev);
1282 team_port_leave(team, port);
1283 team_port_set_orig_dev_addr(port);
1286 dev_set_mtu(port_dev, port->orig.mtu);
1294 static void __team_port_change_port_removed(struct team_port *port);
1296 static int team_port_del(struct team *team, struct net_device *port_dev)
1298 struct net_device *dev = team->dev;
1299 struct team_port *port;
1300 char *portname = port_dev->name;
1302 port = team_port_get_rtnl(port_dev);
1303 if (!port || !team_port_find(team, port)) {
1304 netdev_err(dev, "Device %s does not act as a port of this team\n",
1309 team_port_disable(team, port);
1310 list_del_rcu(&port->list);
1311 team_upper_dev_unlink(team, port);
1312 netdev_rx_handler_unregister(port_dev);
1313 team_port_disable_netpoll(port);
1314 vlan_vids_del_by_dev(port_dev, dev);
1315 dev_uc_unsync(port_dev, dev);
1316 dev_mc_unsync(port_dev, dev);
1317 dev_close(port_dev);
1318 team_port_leave(team, port);
1320 __team_option_inst_mark_removed_port(team, port);
1321 __team_options_change_check(team);
1322 __team_option_inst_del_port(team, port);
1323 __team_port_change_port_removed(port);
1325 team_port_set_orig_dev_addr(port);
1326 dev_set_mtu(port_dev, port->orig.mtu);
1327 kfree_rcu(port, rcu);
1328 netdev_info(dev, "Port device %s removed\n", portname);
1329 __team_compute_features(team);
1339 static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx)
1341 ctx->data.str_val = team->mode->kind;
1345 static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx)
1347 return team_change_mode(team, ctx->data.str_val);
1350 static int team_notify_peers_count_get(struct team *team,
1351 struct team_gsetter_ctx *ctx)
1353 ctx->data.u32_val = team->notify_peers.count;
1357 static int team_notify_peers_count_set(struct team *team,
1358 struct team_gsetter_ctx *ctx)
1360 team->notify_peers.count = ctx->data.u32_val;
1364 static int team_notify_peers_interval_get(struct team *team,
1365 struct team_gsetter_ctx *ctx)
1367 ctx->data.u32_val = team->notify_peers.interval;
1371 static int team_notify_peers_interval_set(struct team *team,
1372 struct team_gsetter_ctx *ctx)
1374 team->notify_peers.interval = ctx->data.u32_val;
1378 static int team_mcast_rejoin_count_get(struct team *team,
1379 struct team_gsetter_ctx *ctx)
1381 ctx->data.u32_val = team->mcast_rejoin.count;
1385 static int team_mcast_rejoin_count_set(struct team *team,
1386 struct team_gsetter_ctx *ctx)
1388 team->mcast_rejoin.count = ctx->data.u32_val;
1392 static int team_mcast_rejoin_interval_get(struct team *team,
1393 struct team_gsetter_ctx *ctx)
1395 ctx->data.u32_val = team->mcast_rejoin.interval;
1399 static int team_mcast_rejoin_interval_set(struct team *team,
1400 struct team_gsetter_ctx *ctx)
1402 team->mcast_rejoin.interval = ctx->data.u32_val;
1406 static int team_port_en_option_get(struct team *team,
1407 struct team_gsetter_ctx *ctx)
1409 struct team_port *port = ctx->info->port;
1411 ctx->data.bool_val = team_port_enabled(port);
1415 static int team_port_en_option_set(struct team *team,
1416 struct team_gsetter_ctx *ctx)
1418 struct team_port *port = ctx->info->port;
1420 if (ctx->data.bool_val)
1421 team_port_enable(team, port);
1423 team_port_disable(team, port);
1427 static int team_user_linkup_option_get(struct team *team,
1428 struct team_gsetter_ctx *ctx)
1430 struct team_port *port = ctx->info->port;
1432 ctx->data.bool_val = port->user.linkup;
1436 static void __team_carrier_check(struct team *team);
1438 static int team_user_linkup_option_set(struct team *team,
1439 struct team_gsetter_ctx *ctx)
1441 struct team_port *port = ctx->info->port;
1443 port->user.linkup = ctx->data.bool_val;
1444 team_refresh_port_linkup(port);
1445 __team_carrier_check(port->team);
1449 static int team_user_linkup_en_option_get(struct team *team,
1450 struct team_gsetter_ctx *ctx)
1452 struct team_port *port = ctx->info->port;
1454 ctx->data.bool_val = port->user.linkup_enabled;
1458 static int team_user_linkup_en_option_set(struct team *team,
1459 struct team_gsetter_ctx *ctx)
1461 struct team_port *port = ctx->info->port;
1463 port->user.linkup_enabled = ctx->data.bool_val;
1464 team_refresh_port_linkup(port);
1465 __team_carrier_check(port->team);
1469 static int team_priority_option_get(struct team *team,
1470 struct team_gsetter_ctx *ctx)
1472 struct team_port *port = ctx->info->port;
1474 ctx->data.s32_val = port->priority;
1478 static int team_priority_option_set(struct team *team,
1479 struct team_gsetter_ctx *ctx)
1481 struct team_port *port = ctx->info->port;
1482 s32 priority = ctx->data.s32_val;
1484 if (port->priority == priority)
1486 port->priority = priority;
1487 team_queue_override_port_prio_changed(team, port);
1491 static int team_queue_id_option_get(struct team *team,
1492 struct team_gsetter_ctx *ctx)
1494 struct team_port *port = ctx->info->port;
1496 ctx->data.u32_val = port->queue_id;
1500 static int team_queue_id_option_set(struct team *team,
1501 struct team_gsetter_ctx *ctx)
1503 struct team_port *port = ctx->info->port;
1504 u16 new_queue_id = ctx->data.u32_val;
1506 if (port->queue_id == new_queue_id)
1508 if (new_queue_id >= team->dev->real_num_tx_queues)
1510 team_queue_override_port_change_queue_id(team, port, new_queue_id);
1514 static const struct team_option team_options[] = {
1517 .type = TEAM_OPTION_TYPE_STRING,
1518 .getter = team_mode_option_get,
1519 .setter = team_mode_option_set,
1522 .name = "notify_peers_count",
1523 .type = TEAM_OPTION_TYPE_U32,
1524 .getter = team_notify_peers_count_get,
1525 .setter = team_notify_peers_count_set,
1528 .name = "notify_peers_interval",
1529 .type = TEAM_OPTION_TYPE_U32,
1530 .getter = team_notify_peers_interval_get,
1531 .setter = team_notify_peers_interval_set,
1534 .name = "mcast_rejoin_count",
1535 .type = TEAM_OPTION_TYPE_U32,
1536 .getter = team_mcast_rejoin_count_get,
1537 .setter = team_mcast_rejoin_count_set,
1540 .name = "mcast_rejoin_interval",
1541 .type = TEAM_OPTION_TYPE_U32,
1542 .getter = team_mcast_rejoin_interval_get,
1543 .setter = team_mcast_rejoin_interval_set,
1547 .type = TEAM_OPTION_TYPE_BOOL,
1549 .getter = team_port_en_option_get,
1550 .setter = team_port_en_option_set,
1553 .name = "user_linkup",
1554 .type = TEAM_OPTION_TYPE_BOOL,
1556 .getter = team_user_linkup_option_get,
1557 .setter = team_user_linkup_option_set,
1560 .name = "user_linkup_enabled",
1561 .type = TEAM_OPTION_TYPE_BOOL,
1563 .getter = team_user_linkup_en_option_get,
1564 .setter = team_user_linkup_en_option_set,
1568 .type = TEAM_OPTION_TYPE_S32,
1570 .getter = team_priority_option_get,
1571 .setter = team_priority_option_set,
1575 .type = TEAM_OPTION_TYPE_U32,
1577 .getter = team_queue_id_option_get,
1578 .setter = team_queue_id_option_set,
1583 static int team_init(struct net_device *dev)
1585 struct team *team = netdev_priv(dev);
1590 mutex_init(&team->lock);
1591 team_set_no_mode(team);
1593 team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats);
1594 if (!team->pcpu_stats)
1597 for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
1598 INIT_HLIST_HEAD(&team->en_port_hlist[i]);
1599 INIT_LIST_HEAD(&team->port_list);
1600 err = team_queue_override_init(team);
1602 goto err_team_queue_override_init;
1604 team_adjust_ops(team);
1606 INIT_LIST_HEAD(&team->option_list);
1607 INIT_LIST_HEAD(&team->option_inst_list);
1609 team_notify_peers_init(team);
1610 team_mcast_rejoin_init(team);
1612 err = team_options_register(team, team_options, ARRAY_SIZE(team_options));
1614 goto err_options_register;
1615 netif_carrier_off(dev);
1617 netdev_lockdep_set_classes(dev);
1621 err_options_register:
1622 team_mcast_rejoin_fini(team);
1623 team_notify_peers_fini(team);
1624 team_queue_override_fini(team);
1625 err_team_queue_override_init:
1626 free_percpu(team->pcpu_stats);
1631 static void team_uninit(struct net_device *dev)
1633 struct team *team = netdev_priv(dev);
1634 struct team_port *port;
1635 struct team_port *tmp;
1637 mutex_lock(&team->lock);
1638 list_for_each_entry_safe(port, tmp, &team->port_list, list)
1639 team_port_del(team, port->dev);
1641 __team_change_mode(team, NULL); /* cleanup */
1642 __team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
1643 team_mcast_rejoin_fini(team);
1644 team_notify_peers_fini(team);
1645 team_queue_override_fini(team);
1646 mutex_unlock(&team->lock);
1647 netdev_change_features(dev);
1650 static void team_destructor(struct net_device *dev)
1652 struct team *team = netdev_priv(dev);
1654 free_percpu(team->pcpu_stats);
1657 static int team_open(struct net_device *dev)
1662 static int team_close(struct net_device *dev)
1668 * note: already called with rcu_read_lock
1670 static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
1672 struct team *team = netdev_priv(dev);
1674 unsigned int len = skb->len;
1676 tx_success = team_queue_override_transmit(team, skb);
1678 tx_success = team->ops.transmit(team, skb);
1680 struct team_pcpu_stats *pcpu_stats;
1682 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
1683 u64_stats_update_begin(&pcpu_stats->syncp);
1684 pcpu_stats->tx_packets++;
1685 pcpu_stats->tx_bytes += len;
1686 u64_stats_update_end(&pcpu_stats->syncp);
1688 this_cpu_inc(team->pcpu_stats->tx_dropped);
1691 return NETDEV_TX_OK;
1694 static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb,
1695 struct net_device *sb_dev,
1696 select_queue_fallback_t fallback)
1699 * This helper function exists to help dev_pick_tx get the correct
1700 * destination queue. Using a helper function skips a call to
1701 * skb_tx_hash and will put the skbs in the queue we expect on their
1702 * way down to the team driver.
1704 u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
1707 * Save the original txq to restore before passing to the driver
1709 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
1711 if (unlikely(txq >= dev->real_num_tx_queues)) {
1713 txq -= dev->real_num_tx_queues;
1714 } while (txq >= dev->real_num_tx_queues);
1719 static void team_change_rx_flags(struct net_device *dev, int change)
1721 struct team *team = netdev_priv(dev);
1722 struct team_port *port;
1726 list_for_each_entry_rcu(port, &team->port_list, list) {
1727 if (change & IFF_PROMISC) {
1728 inc = dev->flags & IFF_PROMISC ? 1 : -1;
1729 dev_set_promiscuity(port->dev, inc);
1731 if (change & IFF_ALLMULTI) {
1732 inc = dev->flags & IFF_ALLMULTI ? 1 : -1;
1733 dev_set_allmulti(port->dev, inc);
1739 static void team_set_rx_mode(struct net_device *dev)
1741 struct team *team = netdev_priv(dev);
1742 struct team_port *port;
1745 list_for_each_entry_rcu(port, &team->port_list, list) {
1746 dev_uc_sync_multiple(port->dev, dev);
1747 dev_mc_sync_multiple(port->dev, dev);
1752 static int team_set_mac_address(struct net_device *dev, void *p)
1754 struct sockaddr *addr = p;
1755 struct team *team = netdev_priv(dev);
1756 struct team_port *port;
1758 if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
1759 return -EADDRNOTAVAIL;
1760 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1761 mutex_lock(&team->lock);
1762 list_for_each_entry(port, &team->port_list, list)
1763 if (team->ops.port_change_dev_addr)
1764 team->ops.port_change_dev_addr(team, port);
1765 mutex_unlock(&team->lock);
1769 static int team_change_mtu(struct net_device *dev, int new_mtu)
1771 struct team *team = netdev_priv(dev);
1772 struct team_port *port;
1776 * Alhough this is reader, it's guarded by team lock. It's not possible
1777 * to traverse list in reverse under rcu_read_lock
1779 mutex_lock(&team->lock);
1780 team->port_mtu_change_allowed = true;
1781 list_for_each_entry(port, &team->port_list, list) {
1782 err = dev_set_mtu(port->dev, new_mtu);
1784 netdev_err(dev, "Device %s failed to change mtu",
1789 team->port_mtu_change_allowed = false;
1790 mutex_unlock(&team->lock);
1797 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1798 dev_set_mtu(port->dev, dev->mtu);
1799 team->port_mtu_change_allowed = false;
1800 mutex_unlock(&team->lock);
1806 team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1808 struct team *team = netdev_priv(dev);
1809 struct team_pcpu_stats *p;
1810 u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes;
1811 u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0;
1815 for_each_possible_cpu(i) {
1816 p = per_cpu_ptr(team->pcpu_stats, i);
1818 start = u64_stats_fetch_begin_irq(&p->syncp);
1819 rx_packets = p->rx_packets;
1820 rx_bytes = p->rx_bytes;
1821 rx_multicast = p->rx_multicast;
1822 tx_packets = p->tx_packets;
1823 tx_bytes = p->tx_bytes;
1824 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
1826 stats->rx_packets += rx_packets;
1827 stats->rx_bytes += rx_bytes;
1828 stats->multicast += rx_multicast;
1829 stats->tx_packets += tx_packets;
1830 stats->tx_bytes += tx_bytes;
1832 * rx_dropped, tx_dropped & rx_nohandler are u32,
1833 * updated without syncp protection.
1835 rx_dropped += p->rx_dropped;
1836 tx_dropped += p->tx_dropped;
1837 rx_nohandler += p->rx_nohandler;
1839 stats->rx_dropped = rx_dropped;
1840 stats->tx_dropped = tx_dropped;
1841 stats->rx_nohandler = rx_nohandler;
1844 static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
1846 struct team *team = netdev_priv(dev);
1847 struct team_port *port;
1851 * Alhough this is reader, it's guarded by team lock. It's not possible
1852 * to traverse list in reverse under rcu_read_lock
1854 mutex_lock(&team->lock);
1855 list_for_each_entry(port, &team->port_list, list) {
1856 err = vlan_vid_add(port->dev, proto, vid);
1860 mutex_unlock(&team->lock);
1865 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1866 vlan_vid_del(port->dev, proto, vid);
1867 mutex_unlock(&team->lock);
1872 static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
1874 struct team *team = netdev_priv(dev);
1875 struct team_port *port;
1877 mutex_lock(&team->lock);
1878 list_for_each_entry(port, &team->port_list, list)
1879 vlan_vid_del(port->dev, proto, vid);
1880 mutex_unlock(&team->lock);
1885 #ifdef CONFIG_NET_POLL_CONTROLLER
1886 static void team_poll_controller(struct net_device *dev)
1890 static void __team_netpoll_cleanup(struct team *team)
1892 struct team_port *port;
1894 list_for_each_entry(port, &team->port_list, list)
1895 team_port_disable_netpoll(port);
1898 static void team_netpoll_cleanup(struct net_device *dev)
1900 struct team *team = netdev_priv(dev);
1902 mutex_lock(&team->lock);
1903 __team_netpoll_cleanup(team);
1904 mutex_unlock(&team->lock);
1907 static int team_netpoll_setup(struct net_device *dev,
1908 struct netpoll_info *npifo)
1910 struct team *team = netdev_priv(dev);
1911 struct team_port *port;
1914 mutex_lock(&team->lock);
1915 list_for_each_entry(port, &team->port_list, list) {
1916 err = __team_port_enable_netpoll(port);
1918 __team_netpoll_cleanup(team);
1922 mutex_unlock(&team->lock);
1927 static int team_add_slave(struct net_device *dev, struct net_device *port_dev,
1928 struct netlink_ext_ack *extack)
1930 struct team *team = netdev_priv(dev);
1933 mutex_lock(&team->lock);
1934 err = team_port_add(team, port_dev, extack);
1935 mutex_unlock(&team->lock);
1938 netdev_change_features(dev);
1943 static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
1945 struct team *team = netdev_priv(dev);
1948 mutex_lock(&team->lock);
1949 err = team_port_del(team, port_dev);
1950 mutex_unlock(&team->lock);
1953 netdev_change_features(dev);
1958 static netdev_features_t team_fix_features(struct net_device *dev,
1959 netdev_features_t features)
1961 struct team_port *port;
1962 struct team *team = netdev_priv(dev);
1963 netdev_features_t mask;
1966 features &= ~NETIF_F_ONE_FOR_ALL;
1967 features |= NETIF_F_ALL_FOR_ALL;
1970 list_for_each_entry_rcu(port, &team->port_list, list) {
1971 features = netdev_increment_features(features,
1972 port->dev->features,
1977 features = netdev_add_tso_features(features, mask);
1982 static int team_change_carrier(struct net_device *dev, bool new_carrier)
1984 struct team *team = netdev_priv(dev);
1986 team->user_carrier_enabled = true;
1989 netif_carrier_on(dev);
1991 netif_carrier_off(dev);
1995 static const struct net_device_ops team_netdev_ops = {
1996 .ndo_init = team_init,
1997 .ndo_uninit = team_uninit,
1998 .ndo_open = team_open,
1999 .ndo_stop = team_close,
2000 .ndo_start_xmit = team_xmit,
2001 .ndo_select_queue = team_select_queue,
2002 .ndo_change_rx_flags = team_change_rx_flags,
2003 .ndo_set_rx_mode = team_set_rx_mode,
2004 .ndo_set_mac_address = team_set_mac_address,
2005 .ndo_change_mtu = team_change_mtu,
2006 .ndo_get_stats64 = team_get_stats64,
2007 .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid,
2008 .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid,
2009 #ifdef CONFIG_NET_POLL_CONTROLLER
2010 .ndo_poll_controller = team_poll_controller,
2011 .ndo_netpoll_setup = team_netpoll_setup,
2012 .ndo_netpoll_cleanup = team_netpoll_cleanup,
2014 .ndo_add_slave = team_add_slave,
2015 .ndo_del_slave = team_del_slave,
2016 .ndo_fix_features = team_fix_features,
2017 .ndo_change_carrier = team_change_carrier,
2018 .ndo_features_check = passthru_features_check,
2021 /***********************
2023 ***********************/
2025 static void team_ethtool_get_drvinfo(struct net_device *dev,
2026 struct ethtool_drvinfo *drvinfo)
2028 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
2029 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
2032 static const struct ethtool_ops team_ethtool_ops = {
2033 .get_drvinfo = team_ethtool_get_drvinfo,
2034 .get_link = ethtool_op_get_link,
2037 /***********************
2038 * rt netlink interface
2039 ***********************/
2041 static void team_setup_by_port(struct net_device *dev,
2042 struct net_device *port_dev)
2044 dev->header_ops = port_dev->header_ops;
2045 dev->type = port_dev->type;
2046 dev->hard_header_len = port_dev->hard_header_len;
2047 dev->addr_len = port_dev->addr_len;
2048 dev->mtu = port_dev->mtu;
2049 memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
2050 eth_hw_addr_inherit(dev, port_dev);
2053 static int team_dev_type_check_change(struct net_device *dev,
2054 struct net_device *port_dev)
2056 struct team *team = netdev_priv(dev);
2057 char *portname = port_dev->name;
2060 if (dev->type == port_dev->type)
2062 if (!list_empty(&team->port_list)) {
2063 netdev_err(dev, "Device %s is of different type\n", portname);
2066 err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
2067 err = notifier_to_errno(err);
2069 netdev_err(dev, "Refused to change device type\n");
2074 team_setup_by_port(dev, port_dev);
2075 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
2079 static void team_setup(struct net_device *dev)
2082 dev->max_mtu = ETH_MAX_MTU;
2084 dev->netdev_ops = &team_netdev_ops;
2085 dev->ethtool_ops = &team_ethtool_ops;
2086 dev->needs_free_netdev = true;
2087 dev->priv_destructor = team_destructor;
2088 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
2089 dev->priv_flags |= IFF_NO_QUEUE;
2090 dev->priv_flags |= IFF_TEAM;
2093 * Indicate we support unicast address filtering. That way core won't
2094 * bring us to promisc mode in case a unicast addr is added.
2095 * Let this up to underlay drivers.
2097 dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
2099 dev->features |= NETIF_F_LLTX;
2100 dev->features |= NETIF_F_GRO;
2102 /* Don't allow team devices to change network namespaces. */
2103 dev->features |= NETIF_F_NETNS_LOCAL;
2105 dev->hw_features = TEAM_VLAN_FEATURES |
2106 NETIF_F_HW_VLAN_CTAG_TX |
2107 NETIF_F_HW_VLAN_CTAG_RX |
2108 NETIF_F_HW_VLAN_CTAG_FILTER;
2110 dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
2111 dev->features |= dev->hw_features;
2114 static int team_newlink(struct net *src_net, struct net_device *dev,
2115 struct nlattr *tb[], struct nlattr *data[],
2116 struct netlink_ext_ack *extack)
2118 if (tb[IFLA_ADDRESS] == NULL)
2119 eth_hw_addr_random(dev);
2121 return register_netdevice(dev);
2124 static int team_validate(struct nlattr *tb[], struct nlattr *data[],
2125 struct netlink_ext_ack *extack)
2127 if (tb[IFLA_ADDRESS]) {
2128 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
2130 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
2131 return -EADDRNOTAVAIL;
2136 static unsigned int team_get_num_tx_queues(void)
2138 return TEAM_DEFAULT_NUM_TX_QUEUES;
2141 static unsigned int team_get_num_rx_queues(void)
2143 return TEAM_DEFAULT_NUM_RX_QUEUES;
2146 static struct rtnl_link_ops team_link_ops __read_mostly = {
2148 .priv_size = sizeof(struct team),
2149 .setup = team_setup,
2150 .newlink = team_newlink,
2151 .validate = team_validate,
2152 .get_num_tx_queues = team_get_num_tx_queues,
2153 .get_num_rx_queues = team_get_num_rx_queues,
2157 /***********************************
2158 * Generic netlink custom interface
2159 ***********************************/
2161 static struct genl_family team_nl_family;
2163 static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = {
2164 [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, },
2165 [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 },
2166 [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED },
2167 [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED },
2170 static const struct nla_policy
2171 team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = {
2172 [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, },
2173 [TEAM_ATTR_OPTION_NAME] = {
2175 .len = TEAM_STRING_MAX_LEN,
2177 [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG },
2178 [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 },
2179 [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY },
2182 static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
2184 struct sk_buff *msg;
2188 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2192 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
2193 &team_nl_family, 0, TEAM_CMD_NOOP);
2199 genlmsg_end(msg, hdr);
2201 return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
2210 * Netlink cmd functions should be locked by following two functions.
2211 * Since dev gets held here, that ensures dev won't disappear in between.
2213 static struct team *team_nl_team_get(struct genl_info *info)
2215 struct net *net = genl_info_net(info);
2217 struct net_device *dev;
2220 if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX])
2223 ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]);
2224 dev = dev_get_by_index(net, ifindex);
2225 if (!dev || dev->netdev_ops != &team_netdev_ops) {
2231 team = netdev_priv(dev);
2232 mutex_lock(&team->lock);
2236 static void team_nl_team_put(struct team *team)
2238 mutex_unlock(&team->lock);
2242 typedef int team_nl_send_func_t(struct sk_buff *skb,
2243 struct team *team, u32 portid);
2245 static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
2247 return genlmsg_unicast(dev_net(team->dev), skb, portid);
2250 static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
2251 struct team_option_inst *opt_inst)
2253 struct nlattr *option_item;
2254 struct team_option *option = opt_inst->option;
2255 struct team_option_inst_info *opt_inst_info = &opt_inst->info;
2256 struct team_gsetter_ctx ctx;
2259 ctx.info = opt_inst_info;
2260 err = team_option_get(team, opt_inst, &ctx);
2264 option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION);
2268 if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name))
2270 if (opt_inst_info->port &&
2271 nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX,
2272 opt_inst_info->port->dev->ifindex))
2274 if (opt_inst->option->array_size &&
2275 nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX,
2276 opt_inst_info->array_index))
2279 switch (option->type) {
2280 case TEAM_OPTION_TYPE_U32:
2281 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32))
2283 if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val))
2286 case TEAM_OPTION_TYPE_STRING:
2287 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING))
2289 if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA,
2293 case TEAM_OPTION_TYPE_BINARY:
2294 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY))
2296 if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len,
2297 ctx.data.bin_val.ptr))
2300 case TEAM_OPTION_TYPE_BOOL:
2301 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG))
2303 if (ctx.data.bool_val &&
2304 nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
2307 case TEAM_OPTION_TYPE_S32:
2308 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
2310 if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
2316 if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED))
2318 if (opt_inst->changed) {
2319 if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED))
2321 opt_inst->changed = false;
2323 nla_nest_end(skb, option_item);
2327 nla_nest_cancel(skb, option_item);
2331 static int __send_and_alloc_skb(struct sk_buff **pskb,
2332 struct team *team, u32 portid,
2333 team_nl_send_func_t *send_func)
2338 err = send_func(*pskb, team, portid);
2342 *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2348 static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
2349 int flags, team_nl_send_func_t *send_func,
2350 struct list_head *sel_opt_inst_list)
2352 struct nlattr *option_list;
2353 struct nlmsghdr *nlh;
2355 struct team_option_inst *opt_inst;
2357 struct sk_buff *skb = NULL;
2361 opt_inst = list_first_entry(sel_opt_inst_list,
2362 struct team_option_inst, tmp_list);
2365 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2369 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2370 TEAM_CMD_OPTIONS_GET);
2376 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2377 goto nla_put_failure;
2378 option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION);
2380 goto nla_put_failure;
2384 list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) {
2385 err = team_nl_fill_one_option_get(skb, team, opt_inst);
2387 if (err == -EMSGSIZE) {
2398 nla_nest_end(skb, option_list);
2399 genlmsg_end(skb, hdr);
2404 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2406 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2412 return send_func(skb, team, portid);
2421 static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info)
2424 struct team_option_inst *opt_inst;
2426 LIST_HEAD(sel_opt_inst_list);
2428 team = team_nl_team_get(info);
2432 list_for_each_entry(opt_inst, &team->option_inst_list, list)
2433 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2434 err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq,
2435 NLM_F_ACK, team_nl_send_unicast,
2436 &sel_opt_inst_list);
2438 team_nl_team_put(team);
2443 static int team_nl_send_event_options_get(struct team *team,
2444 struct list_head *sel_opt_inst_list);
2446 static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
2451 struct nlattr *nl_option;
2455 team = team_nl_team_get(info);
2462 if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
2467 nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) {
2468 struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1];
2469 struct nlattr *attr;
2470 struct nlattr *attr_data;
2471 LIST_HEAD(opt_inst_list);
2472 enum team_option_type opt_type;
2473 int opt_port_ifindex = 0; /* != 0 for per-port options */
2474 u32 opt_array_index = 0;
2475 bool opt_is_array = false;
2476 struct team_option_inst *opt_inst;
2478 bool opt_found = false;
2480 if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) {
2484 err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX,
2485 nl_option, team_nl_option_policy,
2489 if (!opt_attrs[TEAM_ATTR_OPTION_NAME] ||
2490 !opt_attrs[TEAM_ATTR_OPTION_TYPE]) {
2494 switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) {
2496 opt_type = TEAM_OPTION_TYPE_U32;
2499 opt_type = TEAM_OPTION_TYPE_STRING;
2502 opt_type = TEAM_OPTION_TYPE_BINARY;
2505 opt_type = TEAM_OPTION_TYPE_BOOL;
2508 opt_type = TEAM_OPTION_TYPE_S32;
2514 attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA];
2515 if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) {
2520 opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]);
2521 attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX];
2523 opt_port_ifindex = nla_get_u32(attr);
2525 attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX];
2527 opt_is_array = true;
2528 opt_array_index = nla_get_u32(attr);
2531 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2532 struct team_option *option = opt_inst->option;
2533 struct team_gsetter_ctx ctx;
2534 struct team_option_inst_info *opt_inst_info;
2537 opt_inst_info = &opt_inst->info;
2538 tmp_ifindex = opt_inst_info->port ?
2539 opt_inst_info->port->dev->ifindex : 0;
2540 if (option->type != opt_type ||
2541 strcmp(option->name, opt_name) ||
2542 tmp_ifindex != opt_port_ifindex ||
2543 (option->array_size && !opt_is_array) ||
2544 opt_inst_info->array_index != opt_array_index)
2547 ctx.info = opt_inst_info;
2549 case TEAM_OPTION_TYPE_U32:
2550 ctx.data.u32_val = nla_get_u32(attr_data);
2552 case TEAM_OPTION_TYPE_STRING:
2553 if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
2557 ctx.data.str_val = nla_data(attr_data);
2559 case TEAM_OPTION_TYPE_BINARY:
2560 ctx.data.bin_val.len = nla_len(attr_data);
2561 ctx.data.bin_val.ptr = nla_data(attr_data);
2563 case TEAM_OPTION_TYPE_BOOL:
2564 ctx.data.bool_val = attr_data ? true : false;
2566 case TEAM_OPTION_TYPE_S32:
2567 ctx.data.s32_val = nla_get_s32(attr_data);
2572 err = team_option_set(team, opt_inst, &ctx);
2575 opt_inst->changed = true;
2576 list_add(&opt_inst->tmp_list, &opt_inst_list);
2583 err = team_nl_send_event_options_get(team, &opt_inst_list);
2589 team_nl_team_put(team);
2595 static int team_nl_fill_one_port_get(struct sk_buff *skb,
2596 struct team_port *port)
2598 struct nlattr *port_item;
2600 port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT);
2603 if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex))
2605 if (port->changed) {
2606 if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED))
2608 port->changed = false;
2610 if ((port->removed &&
2611 nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) ||
2612 (port->state.linkup &&
2613 nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) ||
2614 nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) ||
2615 nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex))
2617 nla_nest_end(skb, port_item);
2621 nla_nest_cancel(skb, port_item);
2625 static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,
2626 int flags, team_nl_send_func_t *send_func,
2627 struct team_port *one_port)
2629 struct nlattr *port_list;
2630 struct nlmsghdr *nlh;
2632 struct team_port *port;
2634 struct sk_buff *skb = NULL;
2638 port = list_first_entry_or_null(&team->port_list,
2639 struct team_port, list);
2642 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2646 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2647 TEAM_CMD_PORT_LIST_GET);
2653 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2654 goto nla_put_failure;
2655 port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT);
2657 goto nla_put_failure;
2662 /* If one port is selected, called wants to send port list containing
2663 * only this port. Otherwise go through all listed ports and send all
2666 err = team_nl_fill_one_port_get(skb, one_port);
2670 list_for_each_entry_from(port, &team->port_list, list) {
2671 err = team_nl_fill_one_port_get(skb, port);
2673 if (err == -EMSGSIZE) {
2685 nla_nest_end(skb, port_list);
2686 genlmsg_end(skb, hdr);
2691 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2693 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2699 return send_func(skb, team, portid);
2708 static int team_nl_cmd_port_list_get(struct sk_buff *skb,
2709 struct genl_info *info)
2714 team = team_nl_team_get(info);
2718 err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq,
2719 NLM_F_ACK, team_nl_send_unicast, NULL);
2721 team_nl_team_put(team);
2726 static const struct genl_ops team_nl_ops[] = {
2728 .cmd = TEAM_CMD_NOOP,
2729 .doit = team_nl_cmd_noop,
2730 .policy = team_nl_policy,
2733 .cmd = TEAM_CMD_OPTIONS_SET,
2734 .doit = team_nl_cmd_options_set,
2735 .policy = team_nl_policy,
2736 .flags = GENL_ADMIN_PERM,
2739 .cmd = TEAM_CMD_OPTIONS_GET,
2740 .doit = team_nl_cmd_options_get,
2741 .policy = team_nl_policy,
2742 .flags = GENL_ADMIN_PERM,
2745 .cmd = TEAM_CMD_PORT_LIST_GET,
2746 .doit = team_nl_cmd_port_list_get,
2747 .policy = team_nl_policy,
2748 .flags = GENL_ADMIN_PERM,
2752 static const struct genl_multicast_group team_nl_mcgrps[] = {
2753 { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
2756 static struct genl_family team_nl_family __ro_after_init = {
2757 .name = TEAM_GENL_NAME,
2758 .version = TEAM_GENL_VERSION,
2759 .maxattr = TEAM_ATTR_MAX,
2761 .module = THIS_MODULE,
2763 .n_ops = ARRAY_SIZE(team_nl_ops),
2764 .mcgrps = team_nl_mcgrps,
2765 .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps),
2768 static int team_nl_send_multicast(struct sk_buff *skb,
2769 struct team *team, u32 portid)
2771 return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
2772 skb, 0, 0, GFP_KERNEL);
2775 static int team_nl_send_event_options_get(struct team *team,
2776 struct list_head *sel_opt_inst_list)
2778 return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast,
2782 static int team_nl_send_event_port_get(struct team *team,
2783 struct team_port *port)
2785 return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast,
2789 static int __init team_nl_init(void)
2791 return genl_register_family(&team_nl_family);
2794 static void team_nl_fini(void)
2796 genl_unregister_family(&team_nl_family);
2804 static void __team_options_change_check(struct team *team)
2807 struct team_option_inst *opt_inst;
2808 LIST_HEAD(sel_opt_inst_list);
2810 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2811 if (opt_inst->changed)
2812 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2814 err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
2815 if (err && err != -ESRCH)
2816 netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
2820 /* rtnl lock is held */
2822 static void __team_port_change_send(struct team_port *port, bool linkup)
2826 port->changed = true;
2827 port->state.linkup = linkup;
2828 team_refresh_port_linkup(port);
2830 struct ethtool_link_ksettings ecmd;
2832 err = __ethtool_get_link_ksettings(port->dev, &ecmd);
2834 port->state.speed = ecmd.base.speed;
2835 port->state.duplex = ecmd.base.duplex;
2839 port->state.speed = 0;
2840 port->state.duplex = 0;
2843 err = team_nl_send_event_port_get(port->team, port);
2844 if (err && err != -ESRCH)
2845 netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
2846 port->dev->name, err);
2850 static void __team_carrier_check(struct team *team)
2852 struct team_port *port;
2855 if (team->user_carrier_enabled)
2858 team_linkup = false;
2859 list_for_each_entry(port, &team->port_list, list) {
2867 netif_carrier_on(team->dev);
2869 netif_carrier_off(team->dev);
2872 static void __team_port_change_check(struct team_port *port, bool linkup)
2874 if (port->state.linkup != linkup)
2875 __team_port_change_send(port, linkup);
2876 __team_carrier_check(port->team);
2879 static void __team_port_change_port_added(struct team_port *port, bool linkup)
2881 __team_port_change_send(port, linkup);
2882 __team_carrier_check(port->team);
2885 static void __team_port_change_port_removed(struct team_port *port)
2887 port->removed = true;
2888 __team_port_change_send(port, false);
2889 __team_carrier_check(port->team);
2892 static void team_port_change_check(struct team_port *port, bool linkup)
2894 struct team *team = port->team;
2896 mutex_lock(&team->lock);
2897 __team_port_change_check(port, linkup);
2898 mutex_unlock(&team->lock);
2902 /************************************
2903 * Net device notifier event handler
2904 ************************************/
2906 static int team_device_event(struct notifier_block *unused,
2907 unsigned long event, void *ptr)
2909 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2910 struct team_port *port;
2912 port = team_port_get_rtnl(dev);
2918 if (netif_oper_up(dev))
2919 team_port_change_check(port, true);
2922 team_port_change_check(port, false);
2925 if (netif_running(port->dev))
2926 team_port_change_check(port,
2927 !!netif_oper_up(port->dev));
2929 case NETDEV_UNREGISTER:
2930 team_del_slave(port->team->dev, dev);
2932 case NETDEV_FEAT_CHANGE:
2933 team_compute_features(port->team);
2935 case NETDEV_PRECHANGEMTU:
2936 /* Forbid to change mtu of underlaying device */
2937 if (!port->team->port_mtu_change_allowed)
2940 case NETDEV_PRE_TYPE_CHANGE:
2941 /* Forbid to change type of underlaying device */
2943 case NETDEV_RESEND_IGMP:
2944 /* Propagate to master device */
2945 call_netdevice_notifiers(event, port->team->dev);
2951 static struct notifier_block team_notifier_block __read_mostly = {
2952 .notifier_call = team_device_event,
2956 /***********************
2957 * Module init and exit
2958 ***********************/
2960 static int __init team_module_init(void)
2964 register_netdevice_notifier(&team_notifier_block);
2966 err = rtnl_link_register(&team_link_ops);
2970 err = team_nl_init();
2977 rtnl_link_unregister(&team_link_ops);
2980 unregister_netdevice_notifier(&team_notifier_block);
2985 static void __exit team_module_exit(void)
2988 rtnl_link_unregister(&team_link_ops);
2989 unregister_netdevice_notifier(&team_notifier_block);
2992 module_init(team_module_init);
2993 module_exit(team_module_exit);
2995 MODULE_LICENSE("GPL v2");
2996 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2997 MODULE_DESCRIPTION("Ethernet team device driver");
2998 MODULE_ALIAS_RTNL_LINK(DRV_NAME);