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_rcu(const struct net_device *dev)
46 return rcu_dereference(dev->rx_handler_data);
49 static struct team_port *team_port_get_rtnl(const struct net_device *dev)
51 struct team_port *port = rtnl_dereference(dev->rx_handler_data);
53 return team_port_exists(dev) ? port : NULL;
57 * Since the ability to change device address for open port device is tested in
58 * team_port_add, this function can be called without control of return value
60 static int __set_port_dev_addr(struct net_device *port_dev,
61 const unsigned char *dev_addr)
65 memcpy(addr.sa_data, dev_addr, port_dev->addr_len);
66 addr.sa_family = port_dev->type;
67 return dev_set_mac_address(port_dev, &addr);
70 static int team_port_set_orig_dev_addr(struct team_port *port)
72 return __set_port_dev_addr(port->dev, port->orig.dev_addr);
75 static int team_port_set_team_dev_addr(struct team *team,
76 struct team_port *port)
78 return __set_port_dev_addr(port->dev, team->dev->dev_addr);
81 int team_modeop_port_enter(struct team *team, struct team_port *port)
83 return team_port_set_team_dev_addr(team, port);
85 EXPORT_SYMBOL(team_modeop_port_enter);
87 void team_modeop_port_change_dev_addr(struct team *team,
88 struct team_port *port)
90 team_port_set_team_dev_addr(team, port);
92 EXPORT_SYMBOL(team_modeop_port_change_dev_addr);
94 static void team_refresh_port_linkup(struct team_port *port)
96 port->linkup = port->user.linkup_enabled ? port->user.linkup :
105 struct team_option_inst { /* One for each option instance */
106 struct list_head list;
107 struct list_head tmp_list;
108 struct team_option *option;
109 struct team_option_inst_info info;
114 static struct team_option *__team_find_option(struct team *team,
115 const char *opt_name)
117 struct team_option *option;
119 list_for_each_entry(option, &team->option_list, list) {
120 if (strcmp(option->name, opt_name) == 0)
126 static void __team_option_inst_del(struct team_option_inst *opt_inst)
128 list_del(&opt_inst->list);
132 static void __team_option_inst_del_option(struct team *team,
133 struct team_option *option)
135 struct team_option_inst *opt_inst, *tmp;
137 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
138 if (opt_inst->option == option)
139 __team_option_inst_del(opt_inst);
143 static int __team_option_inst_add(struct team *team, struct team_option *option,
144 struct team_port *port)
146 struct team_option_inst *opt_inst;
147 unsigned int array_size;
151 array_size = option->array_size;
153 array_size = 1; /* No array but still need one instance */
155 for (i = 0; i < array_size; i++) {
156 opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL);
159 opt_inst->option = option;
160 opt_inst->info.port = port;
161 opt_inst->info.array_index = i;
162 opt_inst->changed = true;
163 opt_inst->removed = false;
164 list_add_tail(&opt_inst->list, &team->option_inst_list);
166 err = option->init(team, &opt_inst->info);
175 static int __team_option_inst_add_option(struct team *team,
176 struct team_option *option)
180 if (!option->per_port) {
181 err = __team_option_inst_add(team, option, NULL);
183 goto inst_del_option;
188 __team_option_inst_del_option(team, option);
192 static void __team_option_inst_mark_removed_option(struct team *team,
193 struct team_option *option)
195 struct team_option_inst *opt_inst;
197 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
198 if (opt_inst->option == option) {
199 opt_inst->changed = true;
200 opt_inst->removed = true;
205 static void __team_option_inst_del_port(struct team *team,
206 struct team_port *port)
208 struct team_option_inst *opt_inst, *tmp;
210 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
211 if (opt_inst->option->per_port &&
212 opt_inst->info.port == port)
213 __team_option_inst_del(opt_inst);
217 static int __team_option_inst_add_port(struct team *team,
218 struct team_port *port)
220 struct team_option *option;
223 list_for_each_entry(option, &team->option_list, list) {
224 if (!option->per_port)
226 err = __team_option_inst_add(team, option, port);
233 __team_option_inst_del_port(team, port);
237 static void __team_option_inst_mark_removed_port(struct team *team,
238 struct team_port *port)
240 struct team_option_inst *opt_inst;
242 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
243 if (opt_inst->info.port == port) {
244 opt_inst->changed = true;
245 opt_inst->removed = true;
250 static int __team_options_register(struct team *team,
251 const struct team_option *option,
255 struct team_option **dst_opts;
258 dst_opts = kzalloc(sizeof(struct team_option *) * option_count,
262 for (i = 0; i < option_count; i++, option++) {
263 if (__team_find_option(team, option->name)) {
267 dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL);
274 for (i = 0; i < option_count; i++) {
275 err = __team_option_inst_add_option(team, dst_opts[i]);
278 list_add_tail(&dst_opts[i]->list, &team->option_list);
285 for (i--; i >= 0; i--)
286 __team_option_inst_del_option(team, dst_opts[i]);
290 for (i--; i >= 0; i--)
297 static void __team_options_mark_removed(struct team *team,
298 const struct team_option *option,
303 for (i = 0; i < option_count; i++, option++) {
304 struct team_option *del_opt;
306 del_opt = __team_find_option(team, option->name);
308 __team_option_inst_mark_removed_option(team, del_opt);
312 static void __team_options_unregister(struct team *team,
313 const struct team_option *option,
318 for (i = 0; i < option_count; i++, option++) {
319 struct team_option *del_opt;
321 del_opt = __team_find_option(team, option->name);
323 __team_option_inst_del_option(team, del_opt);
324 list_del(&del_opt->list);
330 static void __team_options_change_check(struct team *team);
332 int team_options_register(struct team *team,
333 const struct team_option *option,
338 err = __team_options_register(team, option, option_count);
341 __team_options_change_check(team);
344 EXPORT_SYMBOL(team_options_register);
346 void team_options_unregister(struct team *team,
347 const struct team_option *option,
350 __team_options_mark_removed(team, option, option_count);
351 __team_options_change_check(team);
352 __team_options_unregister(team, option, option_count);
354 EXPORT_SYMBOL(team_options_unregister);
356 static int team_option_get(struct team *team,
357 struct team_option_inst *opt_inst,
358 struct team_gsetter_ctx *ctx)
360 if (!opt_inst->option->getter)
362 return opt_inst->option->getter(team, ctx);
365 static int team_option_set(struct team *team,
366 struct team_option_inst *opt_inst,
367 struct team_gsetter_ctx *ctx)
369 if (!opt_inst->option->setter)
371 return opt_inst->option->setter(team, ctx);
374 void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info)
376 struct team_option_inst *opt_inst;
378 opt_inst = container_of(opt_inst_info, struct team_option_inst, info);
379 opt_inst->changed = true;
381 EXPORT_SYMBOL(team_option_inst_set_change);
383 void team_options_change_check(struct team *team)
385 __team_options_change_check(team);
387 EXPORT_SYMBOL(team_options_change_check);
394 static LIST_HEAD(mode_list);
395 static DEFINE_SPINLOCK(mode_list_lock);
397 struct team_mode_item {
398 struct list_head list;
399 const struct team_mode *mode;
402 static struct team_mode_item *__find_mode(const char *kind)
404 struct team_mode_item *mitem;
406 list_for_each_entry(mitem, &mode_list, list) {
407 if (strcmp(mitem->mode->kind, kind) == 0)
413 static bool is_good_mode_name(const char *name)
415 while (*name != '\0') {
416 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
423 int team_mode_register(const struct team_mode *mode)
426 struct team_mode_item *mitem;
428 if (!is_good_mode_name(mode->kind) ||
429 mode->priv_size > TEAM_MODE_PRIV_SIZE)
432 mitem = kmalloc(sizeof(*mitem), GFP_KERNEL);
436 spin_lock(&mode_list_lock);
437 if (__find_mode(mode->kind)) {
443 list_add_tail(&mitem->list, &mode_list);
445 spin_unlock(&mode_list_lock);
448 EXPORT_SYMBOL(team_mode_register);
450 void team_mode_unregister(const struct team_mode *mode)
452 struct team_mode_item *mitem;
454 spin_lock(&mode_list_lock);
455 mitem = __find_mode(mode->kind);
457 list_del_init(&mitem->list);
460 spin_unlock(&mode_list_lock);
462 EXPORT_SYMBOL(team_mode_unregister);
464 static const struct team_mode *team_mode_get(const char *kind)
466 struct team_mode_item *mitem;
467 const struct team_mode *mode = NULL;
469 if (!try_module_get(THIS_MODULE))
472 spin_lock(&mode_list_lock);
473 mitem = __find_mode(kind);
475 spin_unlock(&mode_list_lock);
476 request_module("team-mode-%s", kind);
477 spin_lock(&mode_list_lock);
478 mitem = __find_mode(kind);
482 if (!try_module_get(mode->owner))
486 spin_unlock(&mode_list_lock);
487 module_put(THIS_MODULE);
491 static void team_mode_put(const struct team_mode *mode)
493 module_put(mode->owner);
496 static bool team_dummy_transmit(struct team *team, struct sk_buff *skb)
498 dev_kfree_skb_any(skb);
502 static rx_handler_result_t team_dummy_receive(struct team *team,
503 struct team_port *port,
506 return RX_HANDLER_ANOTHER;
509 static const struct team_mode __team_no_mode = {
513 static bool team_is_mode_set(struct team *team)
515 return team->mode != &__team_no_mode;
518 static void team_set_no_mode(struct team *team)
520 team->user_carrier_enabled = false;
521 team->mode = &__team_no_mode;
524 static void team_adjust_ops(struct team *team)
527 * To avoid checks in rx/tx skb paths, ensure here that non-null and
528 * correct ops are always set.
531 if (!team->en_port_count || !team_is_mode_set(team) ||
532 !team->mode->ops->transmit)
533 team->ops.transmit = team_dummy_transmit;
535 team->ops.transmit = team->mode->ops->transmit;
537 if (!team->en_port_count || !team_is_mode_set(team) ||
538 !team->mode->ops->receive)
539 team->ops.receive = team_dummy_receive;
541 team->ops.receive = team->mode->ops->receive;
545 * We can benefit from the fact that it's ensured no port is present
546 * at the time of mode change. Therefore no packets are in fly so there's no
547 * need to set mode operations in any special way.
549 static int __team_change_mode(struct team *team,
550 const struct team_mode *new_mode)
552 /* Check if mode was previously set and do cleanup if so */
553 if (team_is_mode_set(team)) {
554 void (*exit_op)(struct team *team) = team->ops.exit;
556 /* Clear ops area so no callback is called any longer */
557 memset(&team->ops, 0, sizeof(struct team_mode_ops));
558 team_adjust_ops(team);
562 team_mode_put(team->mode);
563 team_set_no_mode(team);
564 /* zero private data area */
565 memset(&team->mode_priv, 0,
566 sizeof(struct team) - offsetof(struct team, mode_priv));
572 if (new_mode->ops->init) {
575 err = new_mode->ops->init(team);
580 team->mode = new_mode;
581 memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops));
582 team_adjust_ops(team);
587 static int team_change_mode(struct team *team, const char *kind)
589 const struct team_mode *new_mode;
590 struct net_device *dev = team->dev;
593 if (!list_empty(&team->port_list)) {
594 netdev_err(dev, "No ports can be present during mode change\n");
598 if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) {
599 netdev_err(dev, "Unable to change to the same mode the team is in\n");
603 new_mode = team_mode_get(kind);
605 netdev_err(dev, "Mode \"%s\" not found\n", kind);
609 err = __team_change_mode(team, new_mode);
611 netdev_err(dev, "Failed to change to mode \"%s\"\n", kind);
612 team_mode_put(new_mode);
616 netdev_info(dev, "Mode changed to \"%s\"\n", kind);
621 /*********************
623 *********************/
625 static void team_notify_peers_work(struct work_struct *work)
630 team = container_of(work, struct team, notify_peers.dw.work);
632 if (!rtnl_trylock()) {
633 schedule_delayed_work(&team->notify_peers.dw, 0);
636 val = atomic_dec_if_positive(&team->notify_peers.count_pending);
641 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev);
644 schedule_delayed_work(&team->notify_peers.dw,
645 msecs_to_jiffies(team->notify_peers.interval));
648 static void team_notify_peers(struct team *team)
650 if (!team->notify_peers.count || !netif_running(team->dev))
652 atomic_add(team->notify_peers.count, &team->notify_peers.count_pending);
653 schedule_delayed_work(&team->notify_peers.dw, 0);
656 static void team_notify_peers_init(struct team *team)
658 INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work);
661 static void team_notify_peers_fini(struct team *team)
663 cancel_delayed_work_sync(&team->notify_peers.dw);
667 /*******************************
668 * Send multicast group rejoins
669 *******************************/
671 static void team_mcast_rejoin_work(struct work_struct *work)
676 team = container_of(work, struct team, mcast_rejoin.dw.work);
678 if (!rtnl_trylock()) {
679 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
682 val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending);
687 call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev);
690 schedule_delayed_work(&team->mcast_rejoin.dw,
691 msecs_to_jiffies(team->mcast_rejoin.interval));
694 static void team_mcast_rejoin(struct team *team)
696 if (!team->mcast_rejoin.count || !netif_running(team->dev))
698 atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending);
699 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
702 static void team_mcast_rejoin_init(struct team *team)
704 INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work);
707 static void team_mcast_rejoin_fini(struct team *team)
709 cancel_delayed_work_sync(&team->mcast_rejoin.dw);
713 /************************
714 * Rx path frame handler
715 ************************/
717 /* note: already called with rcu_read_lock */
718 static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
720 struct sk_buff *skb = *pskb;
721 struct team_port *port;
723 rx_handler_result_t res;
725 skb = skb_share_check(skb, GFP_ATOMIC);
727 return RX_HANDLER_CONSUMED;
731 port = team_port_get_rcu(skb->dev);
733 if (!team_port_enabled(port)) {
734 /* allow exact match delivery for disabled ports */
735 res = RX_HANDLER_EXACT;
737 res = team->ops.receive(team, port, skb);
739 if (res == RX_HANDLER_ANOTHER) {
740 struct team_pcpu_stats *pcpu_stats;
742 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
743 u64_stats_update_begin(&pcpu_stats->syncp);
744 pcpu_stats->rx_packets++;
745 pcpu_stats->rx_bytes += skb->len;
746 if (skb->pkt_type == PACKET_MULTICAST)
747 pcpu_stats->rx_multicast++;
748 u64_stats_update_end(&pcpu_stats->syncp);
750 skb->dev = team->dev;
752 this_cpu_inc(team->pcpu_stats->rx_dropped);
759 /*************************************
760 * Multiqueue Tx port select override
761 *************************************/
763 static int team_queue_override_init(struct team *team)
765 struct list_head *listarr;
766 unsigned int queue_cnt = team->dev->num_tx_queues - 1;
771 listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL);
774 team->qom_lists = listarr;
775 for (i = 0; i < queue_cnt; i++)
776 INIT_LIST_HEAD(listarr++);
780 static void team_queue_override_fini(struct team *team)
782 kfree(team->qom_lists);
785 static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
787 return &team->qom_lists[queue_id - 1];
791 * note: already called with rcu_read_lock
793 static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
795 struct list_head *qom_list;
796 struct team_port *port;
798 if (!team->queue_override_enabled || !skb->queue_mapping)
800 qom_list = __team_get_qom_list(team, skb->queue_mapping);
801 list_for_each_entry_rcu(port, qom_list, qom_list) {
802 if (!team_dev_queue_xmit(team, port, skb))
808 static void __team_queue_override_port_del(struct team *team,
809 struct team_port *port)
813 list_del_rcu(&port->qom_list);
816 static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
817 struct team_port *cur)
819 if (port->priority < cur->priority)
821 if (port->priority > cur->priority)
823 if (port->index < cur->index)
828 static void __team_queue_override_port_add(struct team *team,
829 struct team_port *port)
831 struct team_port *cur;
832 struct list_head *qom_list;
833 struct list_head *node;
837 qom_list = __team_get_qom_list(team, port->queue_id);
839 list_for_each_entry(cur, qom_list, qom_list) {
840 if (team_queue_override_port_has_gt_prio_than(port, cur))
842 node = &cur->qom_list;
844 list_add_tail_rcu(&port->qom_list, node);
847 static void __team_queue_override_enabled_check(struct team *team)
849 struct team_port *port;
850 bool enabled = false;
852 list_for_each_entry(port, &team->port_list, list) {
853 if (port->queue_id) {
858 if (enabled == team->queue_override_enabled)
860 netdev_dbg(team->dev, "%s queue override\n",
861 enabled ? "Enabling" : "Disabling");
862 team->queue_override_enabled = enabled;
865 static void team_queue_override_port_prio_changed(struct team *team,
866 struct team_port *port)
868 if (!port->queue_id || team_port_enabled(port))
870 __team_queue_override_port_del(team, port);
871 __team_queue_override_port_add(team, port);
872 __team_queue_override_enabled_check(team);
875 static void team_queue_override_port_change_queue_id(struct team *team,
876 struct team_port *port,
879 if (team_port_enabled(port)) {
880 __team_queue_override_port_del(team, port);
881 port->queue_id = new_queue_id;
882 __team_queue_override_port_add(team, port);
883 __team_queue_override_enabled_check(team);
885 port->queue_id = new_queue_id;
889 static void team_queue_override_port_add(struct team *team,
890 struct team_port *port)
892 __team_queue_override_port_add(team, port);
893 __team_queue_override_enabled_check(team);
896 static void team_queue_override_port_del(struct team *team,
897 struct team_port *port)
899 __team_queue_override_port_del(team, port);
900 __team_queue_override_enabled_check(team);
908 static bool team_port_find(const struct team *team,
909 const struct team_port *port)
911 struct team_port *cur;
913 list_for_each_entry(cur, &team->port_list, list)
920 * Enable/disable port by adding to enabled port hashlist and setting
921 * port->index (Might be racy so reader could see incorrect ifindex when
922 * processing a flying packet, but that is not a problem). Write guarded
925 static void team_port_enable(struct team *team,
926 struct team_port *port)
928 if (team_port_enabled(port))
930 port->index = team->en_port_count++;
931 hlist_add_head_rcu(&port->hlist,
932 team_port_index_hash(team, port->index));
933 team_adjust_ops(team);
934 team_queue_override_port_add(team, port);
935 if (team->ops.port_enabled)
936 team->ops.port_enabled(team, port);
937 team_notify_peers(team);
938 team_mcast_rejoin(team);
941 static void __reconstruct_port_hlist(struct team *team, int rm_index)
944 struct team_port *port;
946 for (i = rm_index + 1; i < team->en_port_count; i++) {
947 port = team_get_port_by_index(team, i);
948 hlist_del_rcu(&port->hlist);
950 hlist_add_head_rcu(&port->hlist,
951 team_port_index_hash(team, port->index));
955 static void team_port_disable(struct team *team,
956 struct team_port *port)
958 if (!team_port_enabled(port))
960 if (team->ops.port_disabled)
961 team->ops.port_disabled(team, port);
962 hlist_del_rcu(&port->hlist);
963 __reconstruct_port_hlist(team, port->index);
965 team->en_port_count--;
966 team_queue_override_port_del(team, port);
967 team_adjust_ops(team);
968 team_notify_peers(team);
969 team_mcast_rejoin(team);
972 #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
973 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
974 NETIF_F_HIGHDMA | NETIF_F_LRO)
976 static void ___team_compute_features(struct team *team)
978 struct team_port *port;
979 netdev_features_t vlan_features = TEAM_VLAN_FEATURES &
981 unsigned short max_hard_header_len = ETH_HLEN;
982 unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
983 IFF_XMIT_DST_RELEASE_PERM;
985 list_for_each_entry(port, &team->port_list, list) {
986 vlan_features = netdev_increment_features(vlan_features,
987 port->dev->vlan_features,
990 dst_release_flag &= port->dev->priv_flags;
991 if (port->dev->hard_header_len > max_hard_header_len)
992 max_hard_header_len = port->dev->hard_header_len;
995 team->dev->vlan_features = vlan_features;
996 team->dev->hard_header_len = max_hard_header_len;
998 team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
999 if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
1000 team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
1003 static void __team_compute_features(struct team *team)
1005 ___team_compute_features(team);
1006 netdev_change_features(team->dev);
1009 static void team_compute_features(struct team *team)
1011 mutex_lock(&team->lock);
1012 ___team_compute_features(team);
1013 mutex_unlock(&team->lock);
1014 netdev_change_features(team->dev);
1017 static int team_port_enter(struct team *team, struct team_port *port)
1021 dev_hold(team->dev);
1022 if (team->ops.port_enter) {
1023 err = team->ops.port_enter(team, port);
1025 netdev_err(team->dev, "Device %s failed to enter team mode\n",
1027 goto err_port_enter;
1039 static void team_port_leave(struct team *team, struct team_port *port)
1041 if (team->ops.port_leave)
1042 team->ops.port_leave(team, port);
1046 #ifdef CONFIG_NET_POLL_CONTROLLER
1047 static int __team_port_enable_netpoll(struct team_port *port)
1052 np = kzalloc(sizeof(*np), GFP_KERNEL);
1056 err = __netpoll_setup(np, port->dev);
1065 static int team_port_enable_netpoll(struct team_port *port)
1067 if (!port->team->dev->npinfo)
1070 return __team_port_enable_netpoll(port);
1073 static void team_port_disable_netpoll(struct team_port *port)
1075 struct netpoll *np = port->np;
1081 /* Wait for transmitting packets to finish before freeing. */
1082 synchronize_rcu_bh();
1083 __netpoll_cleanup(np);
1087 static int team_port_enable_netpoll(struct team_port *port)
1091 static void team_port_disable_netpoll(struct team_port *port)
1096 static int team_upper_dev_link(struct net_device *dev,
1097 struct net_device *port_dev)
1101 err = netdev_master_upper_dev_link(port_dev, dev);
1104 port_dev->priv_flags |= IFF_TEAM_PORT;
1108 static void team_upper_dev_unlink(struct net_device *dev,
1109 struct net_device *port_dev)
1111 netdev_upper_dev_unlink(port_dev, dev);
1112 port_dev->priv_flags &= ~IFF_TEAM_PORT;
1115 static void __team_port_change_port_added(struct team_port *port, bool linkup);
1116 static int team_dev_type_check_change(struct net_device *dev,
1117 struct net_device *port_dev);
1119 static int team_port_add(struct team *team, struct net_device *port_dev)
1121 struct net_device *dev = team->dev;
1122 struct team_port *port;
1123 char *portname = port_dev->name;
1126 if (port_dev->flags & IFF_LOOPBACK) {
1127 netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
1132 if (team_port_exists(port_dev)) {
1133 netdev_err(dev, "Device %s is already a port "
1134 "of a team device\n", portname);
1138 if (dev == port_dev) {
1139 netdev_err(dev, "Cannot enslave team device to itself\n");
1143 if (netdev_has_upper_dev(dev, port_dev)) {
1144 netdev_err(dev, "Device %s is already an upper device of the team interface\n",
1149 if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
1150 vlan_uses_dev(dev)) {
1151 netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
1156 err = team_dev_type_check_change(dev, port_dev);
1160 if (port_dev->flags & IFF_UP) {
1161 netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
1166 port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
1171 port->dev = port_dev;
1173 INIT_LIST_HEAD(&port->qom_list);
1175 port->orig.mtu = port_dev->mtu;
1176 err = dev_set_mtu(port_dev, dev->mtu);
1178 netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err);
1182 memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
1184 err = team_port_enter(team, port);
1186 netdev_err(dev, "Device %s failed to enter team mode\n",
1188 goto err_port_enter;
1191 err = dev_open(port_dev);
1193 netdev_dbg(dev, "Device %s opening failed\n",
1198 err = vlan_vids_add_by_dev(port_dev, dev);
1200 netdev_err(dev, "Failed to add vlan ids to device %s\n",
1205 err = team_port_enable_netpoll(port);
1207 netdev_err(dev, "Failed to enable netpoll on device %s\n",
1209 goto err_enable_netpoll;
1212 if (!(dev->features & NETIF_F_LRO))
1213 dev_disable_lro(port_dev);
1215 err = netdev_rx_handler_register(port_dev, team_handle_frame,
1218 netdev_err(dev, "Device %s failed to register rx_handler\n",
1220 goto err_handler_register;
1223 err = team_upper_dev_link(dev, port_dev);
1225 netdev_err(dev, "Device %s failed to set upper link\n",
1227 goto err_set_upper_link;
1230 err = __team_option_inst_add_port(team, port);
1232 netdev_err(dev, "Device %s failed to add per-port options\n",
1234 goto err_option_port_add;
1238 list_add_tail_rcu(&port->list, &team->port_list);
1239 team_port_enable(team, port);
1240 __team_compute_features(team);
1241 __team_port_change_port_added(port, !!netif_carrier_ok(port_dev));
1242 __team_options_change_check(team);
1244 netdev_info(dev, "Port device %s added\n", portname);
1248 err_option_port_add:
1249 team_upper_dev_unlink(dev, port_dev);
1252 netdev_rx_handler_unregister(port_dev);
1254 err_handler_register:
1255 team_port_disable_netpoll(port);
1258 vlan_vids_del_by_dev(port_dev, dev);
1261 dev_close(port_dev);
1264 team_port_leave(team, port);
1265 team_port_set_orig_dev_addr(port);
1268 dev_set_mtu(port_dev, port->orig.mtu);
1276 static void __team_port_change_port_removed(struct team_port *port);
1278 static int team_port_del(struct team *team, struct net_device *port_dev)
1280 struct net_device *dev = team->dev;
1281 struct team_port *port;
1282 char *portname = port_dev->name;
1284 port = team_port_get_rtnl(port_dev);
1285 if (!port || !team_port_find(team, port)) {
1286 netdev_err(dev, "Device %s does not act as a port of this team\n",
1291 team_port_disable(team, port);
1292 list_del_rcu(&port->list);
1293 team_upper_dev_unlink(dev, port_dev);
1294 netdev_rx_handler_unregister(port_dev);
1295 team_port_disable_netpoll(port);
1296 vlan_vids_del_by_dev(port_dev, dev);
1297 dev_uc_unsync(port_dev, dev);
1298 dev_mc_unsync(port_dev, dev);
1299 dev_close(port_dev);
1300 team_port_leave(team, port);
1302 __team_option_inst_mark_removed_port(team, port);
1303 __team_options_change_check(team);
1304 __team_option_inst_del_port(team, port);
1305 __team_port_change_port_removed(port);
1307 team_port_set_orig_dev_addr(port);
1308 dev_set_mtu(port_dev, port->orig.mtu);
1309 kfree_rcu(port, rcu);
1310 netdev_info(dev, "Port device %s removed\n", portname);
1311 __team_compute_features(team);
1321 static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx)
1323 ctx->data.str_val = team->mode->kind;
1327 static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx)
1329 return team_change_mode(team, ctx->data.str_val);
1332 static int team_notify_peers_count_get(struct team *team,
1333 struct team_gsetter_ctx *ctx)
1335 ctx->data.u32_val = team->notify_peers.count;
1339 static int team_notify_peers_count_set(struct team *team,
1340 struct team_gsetter_ctx *ctx)
1342 team->notify_peers.count = ctx->data.u32_val;
1346 static int team_notify_peers_interval_get(struct team *team,
1347 struct team_gsetter_ctx *ctx)
1349 ctx->data.u32_val = team->notify_peers.interval;
1353 static int team_notify_peers_interval_set(struct team *team,
1354 struct team_gsetter_ctx *ctx)
1356 team->notify_peers.interval = ctx->data.u32_val;
1360 static int team_mcast_rejoin_count_get(struct team *team,
1361 struct team_gsetter_ctx *ctx)
1363 ctx->data.u32_val = team->mcast_rejoin.count;
1367 static int team_mcast_rejoin_count_set(struct team *team,
1368 struct team_gsetter_ctx *ctx)
1370 team->mcast_rejoin.count = ctx->data.u32_val;
1374 static int team_mcast_rejoin_interval_get(struct team *team,
1375 struct team_gsetter_ctx *ctx)
1377 ctx->data.u32_val = team->mcast_rejoin.interval;
1381 static int team_mcast_rejoin_interval_set(struct team *team,
1382 struct team_gsetter_ctx *ctx)
1384 team->mcast_rejoin.interval = ctx->data.u32_val;
1388 static int team_port_en_option_get(struct team *team,
1389 struct team_gsetter_ctx *ctx)
1391 struct team_port *port = ctx->info->port;
1393 ctx->data.bool_val = team_port_enabled(port);
1397 static int team_port_en_option_set(struct team *team,
1398 struct team_gsetter_ctx *ctx)
1400 struct team_port *port = ctx->info->port;
1402 if (ctx->data.bool_val)
1403 team_port_enable(team, port);
1405 team_port_disable(team, port);
1409 static int team_user_linkup_option_get(struct team *team,
1410 struct team_gsetter_ctx *ctx)
1412 struct team_port *port = ctx->info->port;
1414 ctx->data.bool_val = port->user.linkup;
1418 static void __team_carrier_check(struct team *team);
1420 static int team_user_linkup_option_set(struct team *team,
1421 struct team_gsetter_ctx *ctx)
1423 struct team_port *port = ctx->info->port;
1425 port->user.linkup = ctx->data.bool_val;
1426 team_refresh_port_linkup(port);
1427 __team_carrier_check(port->team);
1431 static int team_user_linkup_en_option_get(struct team *team,
1432 struct team_gsetter_ctx *ctx)
1434 struct team_port *port = ctx->info->port;
1436 ctx->data.bool_val = port->user.linkup_enabled;
1440 static int team_user_linkup_en_option_set(struct team *team,
1441 struct team_gsetter_ctx *ctx)
1443 struct team_port *port = ctx->info->port;
1445 port->user.linkup_enabled = ctx->data.bool_val;
1446 team_refresh_port_linkup(port);
1447 __team_carrier_check(port->team);
1451 static int team_priority_option_get(struct team *team,
1452 struct team_gsetter_ctx *ctx)
1454 struct team_port *port = ctx->info->port;
1456 ctx->data.s32_val = port->priority;
1460 static int team_priority_option_set(struct team *team,
1461 struct team_gsetter_ctx *ctx)
1463 struct team_port *port = ctx->info->port;
1464 s32 priority = ctx->data.s32_val;
1466 if (port->priority == priority)
1468 port->priority = priority;
1469 team_queue_override_port_prio_changed(team, port);
1473 static int team_queue_id_option_get(struct team *team,
1474 struct team_gsetter_ctx *ctx)
1476 struct team_port *port = ctx->info->port;
1478 ctx->data.u32_val = port->queue_id;
1482 static int team_queue_id_option_set(struct team *team,
1483 struct team_gsetter_ctx *ctx)
1485 struct team_port *port = ctx->info->port;
1486 u16 new_queue_id = ctx->data.u32_val;
1488 if (port->queue_id == new_queue_id)
1490 if (new_queue_id >= team->dev->real_num_tx_queues)
1492 team_queue_override_port_change_queue_id(team, port, new_queue_id);
1496 static const struct team_option team_options[] = {
1499 .type = TEAM_OPTION_TYPE_STRING,
1500 .getter = team_mode_option_get,
1501 .setter = team_mode_option_set,
1504 .name = "notify_peers_count",
1505 .type = TEAM_OPTION_TYPE_U32,
1506 .getter = team_notify_peers_count_get,
1507 .setter = team_notify_peers_count_set,
1510 .name = "notify_peers_interval",
1511 .type = TEAM_OPTION_TYPE_U32,
1512 .getter = team_notify_peers_interval_get,
1513 .setter = team_notify_peers_interval_set,
1516 .name = "mcast_rejoin_count",
1517 .type = TEAM_OPTION_TYPE_U32,
1518 .getter = team_mcast_rejoin_count_get,
1519 .setter = team_mcast_rejoin_count_set,
1522 .name = "mcast_rejoin_interval",
1523 .type = TEAM_OPTION_TYPE_U32,
1524 .getter = team_mcast_rejoin_interval_get,
1525 .setter = team_mcast_rejoin_interval_set,
1529 .type = TEAM_OPTION_TYPE_BOOL,
1531 .getter = team_port_en_option_get,
1532 .setter = team_port_en_option_set,
1535 .name = "user_linkup",
1536 .type = TEAM_OPTION_TYPE_BOOL,
1538 .getter = team_user_linkup_option_get,
1539 .setter = team_user_linkup_option_set,
1542 .name = "user_linkup_enabled",
1543 .type = TEAM_OPTION_TYPE_BOOL,
1545 .getter = team_user_linkup_en_option_get,
1546 .setter = team_user_linkup_en_option_set,
1550 .type = TEAM_OPTION_TYPE_S32,
1552 .getter = team_priority_option_get,
1553 .setter = team_priority_option_set,
1557 .type = TEAM_OPTION_TYPE_U32,
1559 .getter = team_queue_id_option_get,
1560 .setter = team_queue_id_option_set,
1564 static struct lock_class_key team_netdev_xmit_lock_key;
1565 static struct lock_class_key team_netdev_addr_lock_key;
1566 static struct lock_class_key team_tx_busylock_key;
1568 static void team_set_lockdep_class_one(struct net_device *dev,
1569 struct netdev_queue *txq,
1572 lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key);
1575 static void team_set_lockdep_class(struct net_device *dev)
1577 lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key);
1578 netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL);
1579 dev->qdisc_tx_busylock = &team_tx_busylock_key;
1582 static int team_init(struct net_device *dev)
1584 struct team *team = netdev_priv(dev);
1589 mutex_init(&team->lock);
1590 team_set_no_mode(team);
1592 team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats);
1593 if (!team->pcpu_stats)
1596 for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
1597 INIT_HLIST_HEAD(&team->en_port_hlist[i]);
1598 INIT_LIST_HEAD(&team->port_list);
1599 err = team_queue_override_init(team);
1601 goto err_team_queue_override_init;
1603 team_adjust_ops(team);
1605 INIT_LIST_HEAD(&team->option_list);
1606 INIT_LIST_HEAD(&team->option_inst_list);
1608 team_notify_peers_init(team);
1609 team_mcast_rejoin_init(team);
1611 err = team_options_register(team, team_options, ARRAY_SIZE(team_options));
1613 goto err_options_register;
1614 netif_carrier_off(dev);
1616 team_set_lockdep_class(dev);
1620 err_options_register:
1621 team_mcast_rejoin_fini(team);
1622 team_notify_peers_fini(team);
1623 team_queue_override_fini(team);
1624 err_team_queue_override_init:
1625 free_percpu(team->pcpu_stats);
1630 static void team_uninit(struct net_device *dev)
1632 struct team *team = netdev_priv(dev);
1633 struct team_port *port;
1634 struct team_port *tmp;
1636 mutex_lock(&team->lock);
1637 list_for_each_entry_safe(port, tmp, &team->port_list, list)
1638 team_port_del(team, port->dev);
1640 __team_change_mode(team, NULL); /* cleanup */
1641 __team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
1642 team_mcast_rejoin_fini(team);
1643 team_notify_peers_fini(team);
1644 team_queue_override_fini(team);
1645 mutex_unlock(&team->lock);
1648 static void team_destructor(struct net_device *dev)
1650 struct team *team = netdev_priv(dev);
1652 free_percpu(team->pcpu_stats);
1656 static int team_open(struct net_device *dev)
1661 static int team_close(struct net_device *dev)
1667 * note: already called with rcu_read_lock
1669 static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
1671 struct team *team = netdev_priv(dev);
1673 unsigned int len = skb->len;
1675 tx_success = team_queue_override_transmit(team, skb);
1677 tx_success = team->ops.transmit(team, skb);
1679 struct team_pcpu_stats *pcpu_stats;
1681 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
1682 u64_stats_update_begin(&pcpu_stats->syncp);
1683 pcpu_stats->tx_packets++;
1684 pcpu_stats->tx_bytes += len;
1685 u64_stats_update_end(&pcpu_stats->syncp);
1687 this_cpu_inc(team->pcpu_stats->tx_dropped);
1690 return NETDEV_TX_OK;
1693 static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb,
1694 void *accel_priv, select_queue_fallback_t fallback)
1697 * This helper function exists to help dev_pick_tx get the correct
1698 * destination queue. Using a helper function skips a call to
1699 * skb_tx_hash and will put the skbs in the queue we expect on their
1700 * way down to the team driver.
1702 u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
1705 * Save the original txq to restore before passing to the driver
1707 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
1709 if (unlikely(txq >= dev->real_num_tx_queues)) {
1711 txq -= dev->real_num_tx_queues;
1712 } while (txq >= dev->real_num_tx_queues);
1717 static void team_change_rx_flags(struct net_device *dev, int change)
1719 struct team *team = netdev_priv(dev);
1720 struct team_port *port;
1724 list_for_each_entry_rcu(port, &team->port_list, list) {
1725 if (change & IFF_PROMISC) {
1726 inc = dev->flags & IFF_PROMISC ? 1 : -1;
1727 dev_set_promiscuity(port->dev, inc);
1729 if (change & IFF_ALLMULTI) {
1730 inc = dev->flags & IFF_ALLMULTI ? 1 : -1;
1731 dev_set_allmulti(port->dev, inc);
1737 static void team_set_rx_mode(struct net_device *dev)
1739 struct team *team = netdev_priv(dev);
1740 struct team_port *port;
1743 list_for_each_entry_rcu(port, &team->port_list, list) {
1744 dev_uc_sync_multiple(port->dev, dev);
1745 dev_mc_sync_multiple(port->dev, dev);
1750 static int team_set_mac_address(struct net_device *dev, void *p)
1752 struct sockaddr *addr = p;
1753 struct team *team = netdev_priv(dev);
1754 struct team_port *port;
1756 if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
1757 return -EADDRNOTAVAIL;
1758 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1759 mutex_lock(&team->lock);
1760 list_for_each_entry(port, &team->port_list, list)
1761 if (team->ops.port_change_dev_addr)
1762 team->ops.port_change_dev_addr(team, port);
1763 mutex_unlock(&team->lock);
1767 static int team_change_mtu(struct net_device *dev, int new_mtu)
1769 struct team *team = netdev_priv(dev);
1770 struct team_port *port;
1774 * Alhough this is reader, it's guarded by team lock. It's not possible
1775 * to traverse list in reverse under rcu_read_lock
1777 mutex_lock(&team->lock);
1778 team->port_mtu_change_allowed = true;
1779 list_for_each_entry(port, &team->port_list, list) {
1780 err = dev_set_mtu(port->dev, new_mtu);
1782 netdev_err(dev, "Device %s failed to change mtu",
1787 team->port_mtu_change_allowed = false;
1788 mutex_unlock(&team->lock);
1795 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1796 dev_set_mtu(port->dev, dev->mtu);
1797 team->port_mtu_change_allowed = false;
1798 mutex_unlock(&team->lock);
1803 static struct rtnl_link_stats64 *
1804 team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1806 struct team *team = netdev_priv(dev);
1807 struct team_pcpu_stats *p;
1808 u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes;
1809 u32 rx_dropped = 0, tx_dropped = 0;
1813 for_each_possible_cpu(i) {
1814 p = per_cpu_ptr(team->pcpu_stats, i);
1816 start = u64_stats_fetch_begin_irq(&p->syncp);
1817 rx_packets = p->rx_packets;
1818 rx_bytes = p->rx_bytes;
1819 rx_multicast = p->rx_multicast;
1820 tx_packets = p->tx_packets;
1821 tx_bytes = p->tx_bytes;
1822 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
1824 stats->rx_packets += rx_packets;
1825 stats->rx_bytes += rx_bytes;
1826 stats->multicast += rx_multicast;
1827 stats->tx_packets += tx_packets;
1828 stats->tx_bytes += tx_bytes;
1830 * rx_dropped & tx_dropped are u32, updated
1831 * without syncp protection.
1833 rx_dropped += p->rx_dropped;
1834 tx_dropped += p->tx_dropped;
1836 stats->rx_dropped = rx_dropped;
1837 stats->tx_dropped = tx_dropped;
1841 static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
1843 struct team *team = netdev_priv(dev);
1844 struct team_port *port;
1848 * Alhough this is reader, it's guarded by team lock. It's not possible
1849 * to traverse list in reverse under rcu_read_lock
1851 mutex_lock(&team->lock);
1852 list_for_each_entry(port, &team->port_list, list) {
1853 err = vlan_vid_add(port->dev, proto, vid);
1857 mutex_unlock(&team->lock);
1862 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1863 vlan_vid_del(port->dev, proto, vid);
1864 mutex_unlock(&team->lock);
1869 static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
1871 struct team *team = netdev_priv(dev);
1872 struct team_port *port;
1874 mutex_lock(&team->lock);
1875 list_for_each_entry(port, &team->port_list, list)
1876 vlan_vid_del(port->dev, proto, vid);
1877 mutex_unlock(&team->lock);
1882 #ifdef CONFIG_NET_POLL_CONTROLLER
1883 static void team_poll_controller(struct net_device *dev)
1887 static void __team_netpoll_cleanup(struct team *team)
1889 struct team_port *port;
1891 list_for_each_entry(port, &team->port_list, list)
1892 team_port_disable_netpoll(port);
1895 static void team_netpoll_cleanup(struct net_device *dev)
1897 struct team *team = netdev_priv(dev);
1899 mutex_lock(&team->lock);
1900 __team_netpoll_cleanup(team);
1901 mutex_unlock(&team->lock);
1904 static int team_netpoll_setup(struct net_device *dev,
1905 struct netpoll_info *npifo)
1907 struct team *team = netdev_priv(dev);
1908 struct team_port *port;
1911 mutex_lock(&team->lock);
1912 list_for_each_entry(port, &team->port_list, list) {
1913 err = __team_port_enable_netpoll(port);
1915 __team_netpoll_cleanup(team);
1919 mutex_unlock(&team->lock);
1924 static int team_add_slave(struct net_device *dev, struct net_device *port_dev)
1926 struct team *team = netdev_priv(dev);
1929 mutex_lock(&team->lock);
1930 err = team_port_add(team, port_dev);
1931 mutex_unlock(&team->lock);
1935 static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
1937 struct team *team = netdev_priv(dev);
1940 mutex_lock(&team->lock);
1941 err = team_port_del(team, port_dev);
1942 mutex_unlock(&team->lock);
1946 static netdev_features_t team_fix_features(struct net_device *dev,
1947 netdev_features_t features)
1949 struct team_port *port;
1950 struct team *team = netdev_priv(dev);
1951 netdev_features_t mask;
1954 features &= ~NETIF_F_ONE_FOR_ALL;
1955 features |= NETIF_F_ALL_FOR_ALL;
1958 list_for_each_entry_rcu(port, &team->port_list, list) {
1959 features = netdev_increment_features(features,
1960 port->dev->features,
1965 features = netdev_add_tso_features(features, mask);
1970 static int team_change_carrier(struct net_device *dev, bool new_carrier)
1972 struct team *team = netdev_priv(dev);
1974 team->user_carrier_enabled = true;
1977 netif_carrier_on(dev);
1979 netif_carrier_off(dev);
1983 static const struct net_device_ops team_netdev_ops = {
1984 .ndo_init = team_init,
1985 .ndo_uninit = team_uninit,
1986 .ndo_open = team_open,
1987 .ndo_stop = team_close,
1988 .ndo_start_xmit = team_xmit,
1989 .ndo_select_queue = team_select_queue,
1990 .ndo_change_rx_flags = team_change_rx_flags,
1991 .ndo_set_rx_mode = team_set_rx_mode,
1992 .ndo_set_mac_address = team_set_mac_address,
1993 .ndo_change_mtu = team_change_mtu,
1994 .ndo_get_stats64 = team_get_stats64,
1995 .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid,
1996 .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid,
1997 #ifdef CONFIG_NET_POLL_CONTROLLER
1998 .ndo_poll_controller = team_poll_controller,
1999 .ndo_netpoll_setup = team_netpoll_setup,
2000 .ndo_netpoll_cleanup = team_netpoll_cleanup,
2002 .ndo_add_slave = team_add_slave,
2003 .ndo_del_slave = team_del_slave,
2004 .ndo_fix_features = team_fix_features,
2005 .ndo_change_carrier = team_change_carrier,
2006 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
2007 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
2008 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
2009 .ndo_fdb_add = switchdev_port_fdb_add,
2010 .ndo_fdb_del = switchdev_port_fdb_del,
2011 .ndo_fdb_dump = switchdev_port_fdb_dump,
2012 .ndo_features_check = passthru_features_check,
2015 /***********************
2017 ***********************/
2019 static void team_ethtool_get_drvinfo(struct net_device *dev,
2020 struct ethtool_drvinfo *drvinfo)
2022 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
2023 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
2026 static const struct ethtool_ops team_ethtool_ops = {
2027 .get_drvinfo = team_ethtool_get_drvinfo,
2028 .get_link = ethtool_op_get_link,
2031 /***********************
2032 * rt netlink interface
2033 ***********************/
2035 static void team_setup_by_port(struct net_device *dev,
2036 struct net_device *port_dev)
2038 dev->header_ops = port_dev->header_ops;
2039 dev->type = port_dev->type;
2040 dev->hard_header_len = port_dev->hard_header_len;
2041 dev->needed_headroom = port_dev->needed_headroom;
2042 dev->addr_len = port_dev->addr_len;
2043 dev->mtu = port_dev->mtu;
2044 memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
2045 eth_hw_addr_inherit(dev, port_dev);
2048 static int team_dev_type_check_change(struct net_device *dev,
2049 struct net_device *port_dev)
2051 struct team *team = netdev_priv(dev);
2052 char *portname = port_dev->name;
2055 if (dev->type == port_dev->type)
2057 if (!list_empty(&team->port_list)) {
2058 netdev_err(dev, "Device %s is of different type\n", portname);
2061 err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
2062 err = notifier_to_errno(err);
2064 netdev_err(dev, "Refused to change device type\n");
2069 team_setup_by_port(dev, port_dev);
2070 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
2074 static void team_setup(struct net_device *dev)
2078 dev->netdev_ops = &team_netdev_ops;
2079 dev->ethtool_ops = &team_ethtool_ops;
2080 dev->destructor = team_destructor;
2081 dev->flags |= IFF_MULTICAST;
2082 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
2083 dev->priv_flags |= IFF_NO_QUEUE;
2086 * Indicate we support unicast address filtering. That way core won't
2087 * bring us to promisc mode in case a unicast addr is added.
2088 * Let this up to underlay drivers.
2090 dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
2092 dev->features |= NETIF_F_LLTX;
2093 dev->features |= NETIF_F_GRO;
2095 /* Don't allow team devices to change network namespaces. */
2096 dev->features |= NETIF_F_NETNS_LOCAL;
2098 dev->hw_features = TEAM_VLAN_FEATURES |
2099 NETIF_F_HW_VLAN_CTAG_RX |
2100 NETIF_F_HW_VLAN_CTAG_FILTER;
2102 dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM);
2103 dev->features |= dev->hw_features;
2104 dev->features |= NETIF_F_HW_VLAN_CTAG_TX;
2107 static int team_newlink(struct net *src_net, struct net_device *dev,
2108 struct nlattr *tb[], struct nlattr *data[])
2110 if (tb[IFLA_ADDRESS] == NULL)
2111 eth_hw_addr_random(dev);
2113 return register_netdevice(dev);
2116 static int team_validate(struct nlattr *tb[], struct nlattr *data[])
2118 if (tb[IFLA_ADDRESS]) {
2119 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
2121 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
2122 return -EADDRNOTAVAIL;
2127 static unsigned int team_get_num_tx_queues(void)
2129 return TEAM_DEFAULT_NUM_TX_QUEUES;
2132 static unsigned int team_get_num_rx_queues(void)
2134 return TEAM_DEFAULT_NUM_RX_QUEUES;
2137 static struct rtnl_link_ops team_link_ops __read_mostly = {
2139 .priv_size = sizeof(struct team),
2140 .setup = team_setup,
2141 .newlink = team_newlink,
2142 .validate = team_validate,
2143 .get_num_tx_queues = team_get_num_tx_queues,
2144 .get_num_rx_queues = team_get_num_rx_queues,
2148 /***********************************
2149 * Generic netlink custom interface
2150 ***********************************/
2152 static struct genl_family team_nl_family = {
2153 .id = GENL_ID_GENERATE,
2154 .name = TEAM_GENL_NAME,
2155 .version = TEAM_GENL_VERSION,
2156 .maxattr = TEAM_ATTR_MAX,
2160 static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = {
2161 [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, },
2162 [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 },
2163 [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED },
2164 [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED },
2167 static const struct nla_policy
2168 team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = {
2169 [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, },
2170 [TEAM_ATTR_OPTION_NAME] = {
2172 .len = TEAM_STRING_MAX_LEN,
2174 [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG },
2175 [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 },
2176 [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY },
2177 [TEAM_ATTR_OPTION_PORT_IFINDEX] = { .type = NLA_U32 },
2178 [TEAM_ATTR_OPTION_ARRAY_INDEX] = { .type = NLA_U32 },
2181 static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
2183 struct sk_buff *msg;
2187 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2191 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
2192 &team_nl_family, 0, TEAM_CMD_NOOP);
2198 genlmsg_end(msg, hdr);
2200 return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
2209 * Netlink cmd functions should be locked by following two functions.
2210 * Since dev gets held here, that ensures dev won't disappear in between.
2212 static struct team *team_nl_team_get(struct genl_info *info)
2214 struct net *net = genl_info_net(info);
2216 struct net_device *dev;
2219 if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX])
2222 ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]);
2223 dev = dev_get_by_index(net, ifindex);
2224 if (!dev || dev->netdev_ops != &team_netdev_ops) {
2230 team = netdev_priv(dev);
2231 mutex_lock(&team->lock);
2235 static void team_nl_team_put(struct team *team)
2237 mutex_unlock(&team->lock);
2241 typedef int team_nl_send_func_t(struct sk_buff *skb,
2242 struct team *team, u32 portid);
2244 static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
2246 return genlmsg_unicast(dev_net(team->dev), skb, portid);
2249 static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
2250 struct team_option_inst *opt_inst)
2252 struct nlattr *option_item;
2253 struct team_option *option = opt_inst->option;
2254 struct team_option_inst_info *opt_inst_info = &opt_inst->info;
2255 struct team_gsetter_ctx ctx;
2258 ctx.info = opt_inst_info;
2259 err = team_option_get(team, opt_inst, &ctx);
2263 option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION);
2267 if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name))
2269 if (opt_inst_info->port &&
2270 nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX,
2271 opt_inst_info->port->dev->ifindex))
2273 if (opt_inst->option->array_size &&
2274 nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX,
2275 opt_inst_info->array_index))
2278 switch (option->type) {
2279 case TEAM_OPTION_TYPE_U32:
2280 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32))
2282 if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val))
2285 case TEAM_OPTION_TYPE_STRING:
2286 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING))
2288 if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA,
2292 case TEAM_OPTION_TYPE_BINARY:
2293 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY))
2295 if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len,
2296 ctx.data.bin_val.ptr))
2299 case TEAM_OPTION_TYPE_BOOL:
2300 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG))
2302 if (ctx.data.bool_val &&
2303 nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
2306 case TEAM_OPTION_TYPE_S32:
2307 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
2309 if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
2315 if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED))
2317 if (opt_inst->changed) {
2318 if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED))
2320 opt_inst->changed = false;
2322 nla_nest_end(skb, option_item);
2326 nla_nest_cancel(skb, option_item);
2330 static int __send_and_alloc_skb(struct sk_buff **pskb,
2331 struct team *team, u32 portid,
2332 team_nl_send_func_t *send_func)
2337 err = send_func(*pskb, team, portid);
2341 *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2347 static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
2348 int flags, team_nl_send_func_t *send_func,
2349 struct list_head *sel_opt_inst_list)
2351 struct nlattr *option_list;
2352 struct nlmsghdr *nlh;
2354 struct team_option_inst *opt_inst;
2356 struct sk_buff *skb = NULL;
2360 opt_inst = list_first_entry(sel_opt_inst_list,
2361 struct team_option_inst, tmp_list);
2364 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2368 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2369 TEAM_CMD_OPTIONS_GET);
2375 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2376 goto nla_put_failure;
2377 option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION);
2379 goto nla_put_failure;
2383 list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) {
2384 err = team_nl_fill_one_option_get(skb, team, opt_inst);
2386 if (err == -EMSGSIZE) {
2397 nla_nest_end(skb, option_list);
2398 genlmsg_end(skb, hdr);
2403 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2405 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2411 return send_func(skb, team, portid);
2416 genlmsg_cancel(skb, hdr);
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;
2453 team = team_nl_team_get(info);
2458 if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
2463 nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) {
2464 struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1];
2465 struct nlattr *attr;
2466 struct nlattr *attr_data;
2467 LIST_HEAD(opt_inst_list);
2468 enum team_option_type opt_type;
2469 int opt_port_ifindex = 0; /* != 0 for per-port options */
2470 u32 opt_array_index = 0;
2471 bool opt_is_array = false;
2472 struct team_option_inst *opt_inst;
2474 bool opt_found = false;
2476 if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) {
2480 err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX,
2481 nl_option, team_nl_option_policy);
2484 if (!opt_attrs[TEAM_ATTR_OPTION_NAME] ||
2485 !opt_attrs[TEAM_ATTR_OPTION_TYPE]) {
2489 switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) {
2491 opt_type = TEAM_OPTION_TYPE_U32;
2494 opt_type = TEAM_OPTION_TYPE_STRING;
2497 opt_type = TEAM_OPTION_TYPE_BINARY;
2500 opt_type = TEAM_OPTION_TYPE_BOOL;
2503 opt_type = TEAM_OPTION_TYPE_S32;
2509 attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA];
2510 if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) {
2515 opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]);
2516 attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX];
2518 opt_port_ifindex = nla_get_u32(attr);
2520 attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX];
2522 opt_is_array = true;
2523 opt_array_index = nla_get_u32(attr);
2526 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2527 struct team_option *option = opt_inst->option;
2528 struct team_gsetter_ctx ctx;
2529 struct team_option_inst_info *opt_inst_info;
2532 opt_inst_info = &opt_inst->info;
2533 tmp_ifindex = opt_inst_info->port ?
2534 opt_inst_info->port->dev->ifindex : 0;
2535 if (option->type != opt_type ||
2536 strcmp(option->name, opt_name) ||
2537 tmp_ifindex != opt_port_ifindex ||
2538 (option->array_size && !opt_is_array) ||
2539 opt_inst_info->array_index != opt_array_index)
2542 ctx.info = opt_inst_info;
2544 case TEAM_OPTION_TYPE_U32:
2545 ctx.data.u32_val = nla_get_u32(attr_data);
2547 case TEAM_OPTION_TYPE_STRING:
2548 if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
2552 ctx.data.str_val = nla_data(attr_data);
2554 case TEAM_OPTION_TYPE_BINARY:
2555 ctx.data.bin_val.len = nla_len(attr_data);
2556 ctx.data.bin_val.ptr = nla_data(attr_data);
2558 case TEAM_OPTION_TYPE_BOOL:
2559 ctx.data.bool_val = attr_data ? true : false;
2561 case TEAM_OPTION_TYPE_S32:
2562 ctx.data.s32_val = nla_get_s32(attr_data);
2567 err = team_option_set(team, opt_inst, &ctx);
2570 opt_inst->changed = true;
2571 list_add(&opt_inst->tmp_list, &opt_inst_list);
2578 err = team_nl_send_event_options_get(team, &opt_inst_list);
2584 team_nl_team_put(team);
2589 static int team_nl_fill_one_port_get(struct sk_buff *skb,
2590 struct team_port *port)
2592 struct nlattr *port_item;
2594 port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT);
2597 if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex))
2599 if (port->changed) {
2600 if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED))
2602 port->changed = false;
2604 if ((port->removed &&
2605 nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) ||
2606 (port->state.linkup &&
2607 nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) ||
2608 nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) ||
2609 nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex))
2611 nla_nest_end(skb, port_item);
2615 nla_nest_cancel(skb, port_item);
2619 static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,
2620 int flags, team_nl_send_func_t *send_func,
2621 struct team_port *one_port)
2623 struct nlattr *port_list;
2624 struct nlmsghdr *nlh;
2626 struct team_port *port;
2628 struct sk_buff *skb = NULL;
2632 port = list_first_entry_or_null(&team->port_list,
2633 struct team_port, list);
2636 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2640 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2641 TEAM_CMD_PORT_LIST_GET);
2647 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2648 goto nla_put_failure;
2649 port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT);
2651 goto nla_put_failure;
2656 /* If one port is selected, called wants to send port list containing
2657 * only this port. Otherwise go through all listed ports and send all
2660 err = team_nl_fill_one_port_get(skb, one_port);
2664 list_for_each_entry_from(port, &team->port_list, list) {
2665 err = team_nl_fill_one_port_get(skb, port);
2667 if (err == -EMSGSIZE) {
2679 nla_nest_end(skb, port_list);
2680 genlmsg_end(skb, hdr);
2685 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2687 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2693 return send_func(skb, team, portid);
2698 genlmsg_cancel(skb, hdr);
2703 static int team_nl_cmd_port_list_get(struct sk_buff *skb,
2704 struct genl_info *info)
2709 team = team_nl_team_get(info);
2713 err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq,
2714 NLM_F_ACK, team_nl_send_unicast, NULL);
2716 team_nl_team_put(team);
2721 static const struct genl_ops team_nl_ops[] = {
2723 .cmd = TEAM_CMD_NOOP,
2724 .doit = team_nl_cmd_noop,
2725 .policy = team_nl_policy,
2728 .cmd = TEAM_CMD_OPTIONS_SET,
2729 .doit = team_nl_cmd_options_set,
2730 .policy = team_nl_policy,
2731 .flags = GENL_ADMIN_PERM,
2734 .cmd = TEAM_CMD_OPTIONS_GET,
2735 .doit = team_nl_cmd_options_get,
2736 .policy = team_nl_policy,
2737 .flags = GENL_ADMIN_PERM,
2740 .cmd = TEAM_CMD_PORT_LIST_GET,
2741 .doit = team_nl_cmd_port_list_get,
2742 .policy = team_nl_policy,
2743 .flags = GENL_ADMIN_PERM,
2747 static const struct genl_multicast_group team_nl_mcgrps[] = {
2748 { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
2751 static int team_nl_send_multicast(struct sk_buff *skb,
2752 struct team *team, u32 portid)
2754 return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
2755 skb, 0, 0, GFP_KERNEL);
2758 static int team_nl_send_event_options_get(struct team *team,
2759 struct list_head *sel_opt_inst_list)
2761 return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast,
2765 static int team_nl_send_event_port_get(struct team *team,
2766 struct team_port *port)
2768 return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast,
2772 static int team_nl_init(void)
2774 return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops,
2778 static void team_nl_fini(void)
2780 genl_unregister_family(&team_nl_family);
2788 static void __team_options_change_check(struct team *team)
2791 struct team_option_inst *opt_inst;
2792 LIST_HEAD(sel_opt_inst_list);
2794 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2795 if (opt_inst->changed)
2796 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2798 err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
2799 if (err && err != -ESRCH)
2800 netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
2804 /* rtnl lock is held */
2806 static void __team_port_change_send(struct team_port *port, bool linkup)
2810 port->changed = true;
2811 port->state.linkup = linkup;
2812 team_refresh_port_linkup(port);
2814 struct ethtool_cmd ecmd;
2816 err = __ethtool_get_settings(port->dev, &ecmd);
2818 port->state.speed = ethtool_cmd_speed(&ecmd);
2819 port->state.duplex = ecmd.duplex;
2823 port->state.speed = 0;
2824 port->state.duplex = 0;
2827 err = team_nl_send_event_port_get(port->team, port);
2828 if (err && err != -ESRCH)
2829 netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
2830 port->dev->name, err);
2834 static void __team_carrier_check(struct team *team)
2836 struct team_port *port;
2839 if (team->user_carrier_enabled)
2842 team_linkup = false;
2843 list_for_each_entry(port, &team->port_list, list) {
2851 netif_carrier_on(team->dev);
2853 netif_carrier_off(team->dev);
2856 static void __team_port_change_check(struct team_port *port, bool linkup)
2858 if (port->state.linkup != linkup)
2859 __team_port_change_send(port, linkup);
2860 __team_carrier_check(port->team);
2863 static void __team_port_change_port_added(struct team_port *port, bool linkup)
2865 __team_port_change_send(port, linkup);
2866 __team_carrier_check(port->team);
2869 static void __team_port_change_port_removed(struct team_port *port)
2871 port->removed = true;
2872 __team_port_change_send(port, false);
2873 __team_carrier_check(port->team);
2876 static void team_port_change_check(struct team_port *port, bool linkup)
2878 struct team *team = port->team;
2880 mutex_lock(&team->lock);
2881 __team_port_change_check(port, linkup);
2882 mutex_unlock(&team->lock);
2886 /************************************
2887 * Net device notifier event handler
2888 ************************************/
2890 static int team_device_event(struct notifier_block *unused,
2891 unsigned long event, void *ptr)
2893 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2894 struct team_port *port;
2896 port = team_port_get_rtnl(dev);
2902 if (netif_carrier_ok(dev))
2903 team_port_change_check(port, true);
2906 team_port_change_check(port, false);
2909 if (netif_running(port->dev))
2910 team_port_change_check(port,
2911 !!netif_carrier_ok(port->dev));
2913 case NETDEV_UNREGISTER:
2914 team_del_slave(port->team->dev, dev);
2916 case NETDEV_FEAT_CHANGE:
2917 team_compute_features(port->team);
2919 case NETDEV_PRECHANGEMTU:
2920 /* Forbid to change mtu of underlaying device */
2921 if (!port->team->port_mtu_change_allowed)
2924 case NETDEV_PRE_TYPE_CHANGE:
2925 /* Forbid to change type of underlaying device */
2927 case NETDEV_RESEND_IGMP:
2928 /* Propagate to master device */
2929 call_netdevice_notifiers(event, port->team->dev);
2935 static struct notifier_block team_notifier_block __read_mostly = {
2936 .notifier_call = team_device_event,
2940 /***********************
2941 * Module init and exit
2942 ***********************/
2944 static int __init team_module_init(void)
2948 register_netdevice_notifier(&team_notifier_block);
2950 err = rtnl_link_register(&team_link_ops);
2954 err = team_nl_init();
2961 rtnl_link_unregister(&team_link_ops);
2964 unregister_netdevice_notifier(&team_notifier_block);
2969 static void __exit team_module_exit(void)
2972 rtnl_link_unregister(&team_link_ops);
2973 unregister_netdevice_notifier(&team_notifier_block);
2976 module_init(team_module_init);
2977 module_exit(team_module_exit);
2979 MODULE_LICENSE("GPL v2");
2980 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2981 MODULE_DESCRIPTION("Ethernet team device driver");
2982 MODULE_ALIAS_RTNL_LINK(DRV_NAME);