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);
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 bool __team_option_inst_tmp_find(const struct list_head *opts,
260 const struct team_option_inst *needle)
262 struct team_option_inst *opt_inst;
264 list_for_each_entry(opt_inst, opts, tmp_list)
265 if (opt_inst == needle)
270 static int __team_options_register(struct team *team,
271 const struct team_option *option,
275 struct team_option **dst_opts;
278 dst_opts = kcalloc(option_count, sizeof(struct team_option *),
282 for (i = 0; i < option_count; i++, option++) {
283 if (__team_find_option(team, option->name)) {
287 dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL);
294 for (i = 0; i < option_count; i++) {
295 err = __team_option_inst_add_option(team, dst_opts[i]);
298 list_add_tail(&dst_opts[i]->list, &team->option_list);
305 for (i--; i >= 0; i--)
306 __team_option_inst_del_option(team, dst_opts[i]);
308 i = option_count - 1;
310 for (i--; i >= 0; i--)
317 static void __team_options_mark_removed(struct team *team,
318 const struct team_option *option,
323 for (i = 0; i < option_count; i++, option++) {
324 struct team_option *del_opt;
326 del_opt = __team_find_option(team, option->name);
328 __team_option_inst_mark_removed_option(team, del_opt);
332 static void __team_options_unregister(struct team *team,
333 const struct team_option *option,
338 for (i = 0; i < option_count; i++, option++) {
339 struct team_option *del_opt;
341 del_opt = __team_find_option(team, option->name);
343 __team_option_inst_del_option(team, del_opt);
344 list_del(&del_opt->list);
350 static void __team_options_change_check(struct team *team);
352 int team_options_register(struct team *team,
353 const struct team_option *option,
358 err = __team_options_register(team, option, option_count);
361 __team_options_change_check(team);
364 EXPORT_SYMBOL(team_options_register);
366 void team_options_unregister(struct team *team,
367 const struct team_option *option,
370 __team_options_mark_removed(team, option, option_count);
371 __team_options_change_check(team);
372 __team_options_unregister(team, option, option_count);
374 EXPORT_SYMBOL(team_options_unregister);
376 static int team_option_get(struct team *team,
377 struct team_option_inst *opt_inst,
378 struct team_gsetter_ctx *ctx)
380 if (!opt_inst->option->getter)
382 return opt_inst->option->getter(team, ctx);
385 static int team_option_set(struct team *team,
386 struct team_option_inst *opt_inst,
387 struct team_gsetter_ctx *ctx)
389 if (!opt_inst->option->setter)
391 return opt_inst->option->setter(team, ctx);
394 void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info)
396 struct team_option_inst *opt_inst;
398 opt_inst = container_of(opt_inst_info, struct team_option_inst, info);
399 opt_inst->changed = true;
401 EXPORT_SYMBOL(team_option_inst_set_change);
403 void team_options_change_check(struct team *team)
405 __team_options_change_check(team);
407 EXPORT_SYMBOL(team_options_change_check);
414 static LIST_HEAD(mode_list);
415 static DEFINE_SPINLOCK(mode_list_lock);
417 struct team_mode_item {
418 struct list_head list;
419 const struct team_mode *mode;
422 static struct team_mode_item *__find_mode(const char *kind)
424 struct team_mode_item *mitem;
426 list_for_each_entry(mitem, &mode_list, list) {
427 if (strcmp(mitem->mode->kind, kind) == 0)
433 static bool is_good_mode_name(const char *name)
435 while (*name != '\0') {
436 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
443 int team_mode_register(const struct team_mode *mode)
446 struct team_mode_item *mitem;
448 if (!is_good_mode_name(mode->kind) ||
449 mode->priv_size > TEAM_MODE_PRIV_SIZE)
452 mitem = kmalloc(sizeof(*mitem), GFP_KERNEL);
456 spin_lock(&mode_list_lock);
457 if (__find_mode(mode->kind)) {
463 list_add_tail(&mitem->list, &mode_list);
465 spin_unlock(&mode_list_lock);
468 EXPORT_SYMBOL(team_mode_register);
470 void team_mode_unregister(const struct team_mode *mode)
472 struct team_mode_item *mitem;
474 spin_lock(&mode_list_lock);
475 mitem = __find_mode(mode->kind);
477 list_del_init(&mitem->list);
480 spin_unlock(&mode_list_lock);
482 EXPORT_SYMBOL(team_mode_unregister);
484 static const struct team_mode *team_mode_get(const char *kind)
486 struct team_mode_item *mitem;
487 const struct team_mode *mode = NULL;
489 spin_lock(&mode_list_lock);
490 mitem = __find_mode(kind);
492 spin_unlock(&mode_list_lock);
493 request_module("team-mode-%s", kind);
494 spin_lock(&mode_list_lock);
495 mitem = __find_mode(kind);
499 if (!try_module_get(mode->owner))
503 spin_unlock(&mode_list_lock);
507 static void team_mode_put(const struct team_mode *mode)
509 module_put(mode->owner);
512 static bool team_dummy_transmit(struct team *team, struct sk_buff *skb)
514 dev_kfree_skb_any(skb);
518 static rx_handler_result_t team_dummy_receive(struct team *team,
519 struct team_port *port,
522 return RX_HANDLER_ANOTHER;
525 static const struct team_mode __team_no_mode = {
529 static bool team_is_mode_set(struct team *team)
531 return team->mode != &__team_no_mode;
534 static void team_set_no_mode(struct team *team)
536 team->user_carrier_enabled = false;
537 team->mode = &__team_no_mode;
540 static void team_adjust_ops(struct team *team)
543 * To avoid checks in rx/tx skb paths, ensure here that non-null and
544 * correct ops are always set.
547 if (!team->en_port_count || !team_is_mode_set(team) ||
548 !team->mode->ops->transmit)
549 team->ops.transmit = team_dummy_transmit;
551 team->ops.transmit = team->mode->ops->transmit;
553 if (!team->en_port_count || !team_is_mode_set(team) ||
554 !team->mode->ops->receive)
555 team->ops.receive = team_dummy_receive;
557 team->ops.receive = team->mode->ops->receive;
561 * We can benefit from the fact that it's ensured no port is present
562 * at the time of mode change. Therefore no packets are in fly so there's no
563 * need to set mode operations in any special way.
565 static int __team_change_mode(struct team *team,
566 const struct team_mode *new_mode)
568 /* Check if mode was previously set and do cleanup if so */
569 if (team_is_mode_set(team)) {
570 void (*exit_op)(struct team *team) = team->ops.exit;
572 /* Clear ops area so no callback is called any longer */
573 memset(&team->ops, 0, sizeof(struct team_mode_ops));
574 team_adjust_ops(team);
578 team_mode_put(team->mode);
579 team_set_no_mode(team);
580 /* zero private data area */
581 memset(&team->mode_priv, 0,
582 sizeof(struct team) - offsetof(struct team, mode_priv));
588 if (new_mode->ops->init) {
591 err = new_mode->ops->init(team);
596 team->mode = new_mode;
597 memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops));
598 team_adjust_ops(team);
603 static int team_change_mode(struct team *team, const char *kind)
605 const struct team_mode *new_mode;
606 struct net_device *dev = team->dev;
609 if (!list_empty(&team->port_list)) {
610 netdev_err(dev, "No ports can be present during mode change\n");
614 if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) {
615 netdev_err(dev, "Unable to change to the same mode the team is in\n");
619 new_mode = team_mode_get(kind);
621 netdev_err(dev, "Mode \"%s\" not found\n", kind);
625 err = __team_change_mode(team, new_mode);
627 netdev_err(dev, "Failed to change to mode \"%s\"\n", kind);
628 team_mode_put(new_mode);
632 netdev_info(dev, "Mode changed to \"%s\"\n", kind);
637 /*********************
639 *********************/
641 static void team_notify_peers_work(struct work_struct *work)
646 team = container_of(work, struct team, notify_peers.dw.work);
648 if (!rtnl_trylock()) {
649 schedule_delayed_work(&team->notify_peers.dw, 0);
652 val = atomic_dec_if_positive(&team->notify_peers.count_pending);
657 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev);
660 schedule_delayed_work(&team->notify_peers.dw,
661 msecs_to_jiffies(team->notify_peers.interval));
664 static void team_notify_peers(struct team *team)
666 if (!team->notify_peers.count || !netif_running(team->dev))
668 atomic_add(team->notify_peers.count, &team->notify_peers.count_pending);
669 schedule_delayed_work(&team->notify_peers.dw, 0);
672 static void team_notify_peers_init(struct team *team)
674 INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work);
677 static void team_notify_peers_fini(struct team *team)
679 cancel_delayed_work_sync(&team->notify_peers.dw);
683 /*******************************
684 * Send multicast group rejoins
685 *******************************/
687 static void team_mcast_rejoin_work(struct work_struct *work)
692 team = container_of(work, struct team, mcast_rejoin.dw.work);
694 if (!rtnl_trylock()) {
695 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
698 val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending);
703 call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev);
706 schedule_delayed_work(&team->mcast_rejoin.dw,
707 msecs_to_jiffies(team->mcast_rejoin.interval));
710 static void team_mcast_rejoin(struct team *team)
712 if (!team->mcast_rejoin.count || !netif_running(team->dev))
714 atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending);
715 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
718 static void team_mcast_rejoin_init(struct team *team)
720 INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work);
723 static void team_mcast_rejoin_fini(struct team *team)
725 cancel_delayed_work_sync(&team->mcast_rejoin.dw);
729 /************************
730 * Rx path frame handler
731 ************************/
733 /* note: already called with rcu_read_lock */
734 static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
736 struct sk_buff *skb = *pskb;
737 struct team_port *port;
739 rx_handler_result_t res;
741 skb = skb_share_check(skb, GFP_ATOMIC);
743 return RX_HANDLER_CONSUMED;
747 port = team_port_get_rcu(skb->dev);
749 if (!team_port_enabled(port)) {
750 /* allow exact match delivery for disabled ports */
751 res = RX_HANDLER_EXACT;
753 res = team->ops.receive(team, port, skb);
755 if (res == RX_HANDLER_ANOTHER) {
756 struct team_pcpu_stats *pcpu_stats;
758 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
759 u64_stats_update_begin(&pcpu_stats->syncp);
760 pcpu_stats->rx_packets++;
761 pcpu_stats->rx_bytes += skb->len;
762 if (skb->pkt_type == PACKET_MULTICAST)
763 pcpu_stats->rx_multicast++;
764 u64_stats_update_end(&pcpu_stats->syncp);
766 skb->dev = team->dev;
767 } else if (res == RX_HANDLER_EXACT) {
768 this_cpu_inc(team->pcpu_stats->rx_nohandler);
770 this_cpu_inc(team->pcpu_stats->rx_dropped);
777 /*************************************
778 * Multiqueue Tx port select override
779 *************************************/
781 static int team_queue_override_init(struct team *team)
783 struct list_head *listarr;
784 unsigned int queue_cnt = team->dev->num_tx_queues - 1;
789 listarr = kmalloc_array(queue_cnt, sizeof(struct list_head),
793 team->qom_lists = listarr;
794 for (i = 0; i < queue_cnt; i++)
795 INIT_LIST_HEAD(listarr++);
799 static void team_queue_override_fini(struct team *team)
801 kfree(team->qom_lists);
804 static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
806 return &team->qom_lists[queue_id - 1];
810 * note: already called with rcu_read_lock
812 static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
814 struct list_head *qom_list;
815 struct team_port *port;
817 if (!team->queue_override_enabled || !skb->queue_mapping)
819 qom_list = __team_get_qom_list(team, skb->queue_mapping);
820 list_for_each_entry_rcu(port, qom_list, qom_list) {
821 if (!team_dev_queue_xmit(team, port, skb))
827 static void __team_queue_override_port_del(struct team *team,
828 struct team_port *port)
832 list_del_rcu(&port->qom_list);
835 static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
836 struct team_port *cur)
838 if (port->priority < cur->priority)
840 if (port->priority > cur->priority)
842 if (port->index < cur->index)
847 static void __team_queue_override_port_add(struct team *team,
848 struct team_port *port)
850 struct team_port *cur;
851 struct list_head *qom_list;
852 struct list_head *node;
856 qom_list = __team_get_qom_list(team, port->queue_id);
858 list_for_each_entry(cur, qom_list, qom_list) {
859 if (team_queue_override_port_has_gt_prio_than(port, cur))
861 node = &cur->qom_list;
863 list_add_tail_rcu(&port->qom_list, node);
866 static void __team_queue_override_enabled_check(struct team *team)
868 struct team_port *port;
869 bool enabled = false;
871 list_for_each_entry(port, &team->port_list, list) {
872 if (port->queue_id) {
877 if (enabled == team->queue_override_enabled)
879 netdev_dbg(team->dev, "%s queue override\n",
880 enabled ? "Enabling" : "Disabling");
881 team->queue_override_enabled = enabled;
884 static void team_queue_override_port_prio_changed(struct team *team,
885 struct team_port *port)
887 if (!port->queue_id || team_port_enabled(port))
889 __team_queue_override_port_del(team, port);
890 __team_queue_override_port_add(team, port);
891 __team_queue_override_enabled_check(team);
894 static void team_queue_override_port_change_queue_id(struct team *team,
895 struct team_port *port,
898 if (team_port_enabled(port)) {
899 __team_queue_override_port_del(team, port);
900 port->queue_id = new_queue_id;
901 __team_queue_override_port_add(team, port);
902 __team_queue_override_enabled_check(team);
904 port->queue_id = new_queue_id;
908 static void team_queue_override_port_add(struct team *team,
909 struct team_port *port)
911 __team_queue_override_port_add(team, port);
912 __team_queue_override_enabled_check(team);
915 static void team_queue_override_port_del(struct team *team,
916 struct team_port *port)
918 __team_queue_override_port_del(team, port);
919 __team_queue_override_enabled_check(team);
927 static bool team_port_find(const struct team *team,
928 const struct team_port *port)
930 struct team_port *cur;
932 list_for_each_entry(cur, &team->port_list, list)
939 * Enable/disable port by adding to enabled port hashlist and setting
940 * port->index (Might be racy so reader could see incorrect ifindex when
941 * processing a flying packet, but that is not a problem). Write guarded
944 static void team_port_enable(struct team *team,
945 struct team_port *port)
947 if (team_port_enabled(port))
949 port->index = team->en_port_count++;
950 hlist_add_head_rcu(&port->hlist,
951 team_port_index_hash(team, port->index));
952 team_adjust_ops(team);
953 team_queue_override_port_add(team, port);
954 if (team->ops.port_enabled)
955 team->ops.port_enabled(team, port);
956 team_notify_peers(team);
957 team_mcast_rejoin(team);
958 team_lower_state_changed(port);
961 static void __reconstruct_port_hlist(struct team *team, int rm_index)
964 struct team_port *port;
966 for (i = rm_index + 1; i < team->en_port_count; i++) {
967 port = team_get_port_by_index(team, i);
968 hlist_del_rcu(&port->hlist);
970 hlist_add_head_rcu(&port->hlist,
971 team_port_index_hash(team, port->index));
975 static void team_port_disable(struct team *team,
976 struct team_port *port)
978 if (!team_port_enabled(port))
980 if (team->ops.port_disabled)
981 team->ops.port_disabled(team, port);
982 hlist_del_rcu(&port->hlist);
983 __reconstruct_port_hlist(team, port->index);
985 team->en_port_count--;
986 team_queue_override_port_del(team, port);
987 team_adjust_ops(team);
988 team_notify_peers(team);
989 team_mcast_rejoin(team);
990 team_lower_state_changed(port);
993 #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
994 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
995 NETIF_F_HIGHDMA | NETIF_F_LRO)
997 #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
998 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
1000 static void __team_compute_features(struct team *team)
1002 struct team_port *port;
1003 netdev_features_t vlan_features = TEAM_VLAN_FEATURES &
1004 NETIF_F_ALL_FOR_ALL;
1005 netdev_features_t enc_features = TEAM_ENC_FEATURES;
1006 unsigned short max_hard_header_len = ETH_HLEN;
1007 unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
1008 IFF_XMIT_DST_RELEASE_PERM;
1010 list_for_each_entry(port, &team->port_list, list) {
1011 vlan_features = netdev_increment_features(vlan_features,
1012 port->dev->vlan_features,
1013 TEAM_VLAN_FEATURES);
1015 netdev_increment_features(enc_features,
1016 port->dev->hw_enc_features,
1020 dst_release_flag &= port->dev->priv_flags;
1021 if (port->dev->hard_header_len > max_hard_header_len)
1022 max_hard_header_len = port->dev->hard_header_len;
1025 team->dev->vlan_features = vlan_features;
1026 team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
1028 team->dev->hard_header_len = max_hard_header_len;
1030 team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
1031 if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
1032 team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
1035 static void team_compute_features(struct team *team)
1037 mutex_lock(&team->lock);
1038 __team_compute_features(team);
1039 mutex_unlock(&team->lock);
1040 netdev_change_features(team->dev);
1043 static int team_port_enter(struct team *team, struct team_port *port)
1047 dev_hold(team->dev);
1048 if (team->ops.port_enter) {
1049 err = team->ops.port_enter(team, port);
1051 netdev_err(team->dev, "Device %s failed to enter team mode\n",
1053 goto err_port_enter;
1065 static void team_port_leave(struct team *team, struct team_port *port)
1067 if (team->ops.port_leave)
1068 team->ops.port_leave(team, port);
1072 #ifdef CONFIG_NET_POLL_CONTROLLER
1073 static int __team_port_enable_netpoll(struct team_port *port)
1078 np = kzalloc(sizeof(*np), GFP_KERNEL);
1082 err = __netpoll_setup(np, port->dev);
1091 static int team_port_enable_netpoll(struct team_port *port)
1093 if (!port->team->dev->npinfo)
1096 return __team_port_enable_netpoll(port);
1099 static void team_port_disable_netpoll(struct team_port *port)
1101 struct netpoll *np = port->np;
1107 /* Wait for transmitting packets to finish before freeing. */
1108 synchronize_rcu_bh();
1109 __netpoll_cleanup(np);
1113 static int team_port_enable_netpoll(struct team_port *port)
1117 static void team_port_disable_netpoll(struct team_port *port)
1122 static int team_upper_dev_link(struct team *team, struct team_port *port,
1123 struct netlink_ext_ack *extack)
1125 struct netdev_lag_upper_info lag_upper_info;
1128 lag_upper_info.tx_type = team->mode->lag_tx_type;
1129 lag_upper_info.hash_type = NETDEV_LAG_HASH_UNKNOWN;
1130 err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
1131 &lag_upper_info, extack);
1134 port->dev->priv_flags |= IFF_TEAM_PORT;
1138 static void team_upper_dev_unlink(struct team *team, struct team_port *port)
1140 netdev_upper_dev_unlink(port->dev, team->dev);
1141 port->dev->priv_flags &= ~IFF_TEAM_PORT;
1144 static void __team_port_change_port_added(struct team_port *port, bool linkup);
1145 static int team_dev_type_check_change(struct net_device *dev,
1146 struct net_device *port_dev);
1148 static int team_port_add(struct team *team, struct net_device *port_dev,
1149 struct netlink_ext_ack *extack)
1151 struct net_device *dev = team->dev;
1152 struct team_port *port;
1153 char *portname = port_dev->name;
1156 if (port_dev->flags & IFF_LOOPBACK) {
1157 NL_SET_ERR_MSG(extack, "Loopback device can't be added as a team port");
1158 netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
1163 if (team_port_exists(port_dev)) {
1164 NL_SET_ERR_MSG(extack, "Device is already a port of a team device");
1165 netdev_err(dev, "Device %s is already a port "
1166 "of a team device\n", portname);
1170 if (dev == port_dev) {
1171 NL_SET_ERR_MSG(extack, "Cannot enslave team device to itself");
1172 netdev_err(dev, "Cannot enslave team device to itself\n");
1176 if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
1177 vlan_uses_dev(dev)) {
1178 NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up");
1179 netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
1184 err = team_dev_type_check_change(dev, port_dev);
1188 if (port_dev->flags & IFF_UP) {
1189 NL_SET_ERR_MSG(extack, "Device is up. Set it down before adding it as a team port");
1190 netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
1195 port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
1200 port->dev = port_dev;
1202 INIT_LIST_HEAD(&port->qom_list);
1204 port->orig.mtu = port_dev->mtu;
1205 err = dev_set_mtu(port_dev, dev->mtu);
1207 netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err);
1211 memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
1213 err = team_port_enter(team, port);
1215 netdev_err(dev, "Device %s failed to enter team mode\n",
1217 goto err_port_enter;
1220 err = dev_open(port_dev);
1222 netdev_dbg(dev, "Device %s opening failed\n",
1227 err = vlan_vids_add_by_dev(port_dev, dev);
1229 netdev_err(dev, "Failed to add vlan ids to device %s\n",
1234 err = team_port_enable_netpoll(port);
1236 netdev_err(dev, "Failed to enable netpoll on device %s\n",
1238 goto err_enable_netpoll;
1241 if (!(dev->features & NETIF_F_LRO))
1242 dev_disable_lro(port_dev);
1244 err = netdev_rx_handler_register(port_dev, team_handle_frame,
1247 netdev_err(dev, "Device %s failed to register rx_handler\n",
1249 goto err_handler_register;
1252 err = team_upper_dev_link(team, port, extack);
1254 netdev_err(dev, "Device %s failed to set upper link\n",
1256 goto err_set_upper_link;
1259 err = __team_option_inst_add_port(team, port);
1261 netdev_err(dev, "Device %s failed to add per-port options\n",
1263 goto err_option_port_add;
1266 netif_addr_lock_bh(dev);
1267 dev_uc_sync_multiple(port_dev, dev);
1268 dev_mc_sync_multiple(port_dev, dev);
1269 netif_addr_unlock_bh(dev);
1272 list_add_tail_rcu(&port->list, &team->port_list);
1273 team_port_enable(team, port);
1274 __team_compute_features(team);
1275 __team_port_change_port_added(port, !!netif_carrier_ok(port_dev));
1276 __team_options_change_check(team);
1278 netdev_info(dev, "Port device %s added\n", portname);
1282 err_option_port_add:
1283 team_upper_dev_unlink(team, port);
1286 netdev_rx_handler_unregister(port_dev);
1288 err_handler_register:
1289 team_port_disable_netpoll(port);
1292 vlan_vids_del_by_dev(port_dev, dev);
1295 dev_close(port_dev);
1298 team_port_leave(team, port);
1299 team_port_set_orig_dev_addr(port);
1302 dev_set_mtu(port_dev, port->orig.mtu);
1310 static void __team_port_change_port_removed(struct team_port *port);
1312 static int team_port_del(struct team *team, struct net_device *port_dev)
1314 struct net_device *dev = team->dev;
1315 struct team_port *port;
1316 char *portname = port_dev->name;
1318 port = team_port_get_rtnl(port_dev);
1319 if (!port || !team_port_find(team, port)) {
1320 netdev_err(dev, "Device %s does not act as a port of this team\n",
1325 team_port_disable(team, port);
1326 list_del_rcu(&port->list);
1327 team_upper_dev_unlink(team, port);
1328 netdev_rx_handler_unregister(port_dev);
1329 team_port_disable_netpoll(port);
1330 vlan_vids_del_by_dev(port_dev, dev);
1331 dev_uc_unsync(port_dev, dev);
1332 dev_mc_unsync(port_dev, dev);
1333 dev_close(port_dev);
1334 team_port_leave(team, port);
1336 __team_option_inst_mark_removed_port(team, port);
1337 __team_options_change_check(team);
1338 __team_option_inst_del_port(team, port);
1339 __team_port_change_port_removed(port);
1341 team_port_set_orig_dev_addr(port);
1342 dev_set_mtu(port_dev, port->orig.mtu);
1343 kfree_rcu(port, rcu);
1344 netdev_info(dev, "Port device %s removed\n", portname);
1345 __team_compute_features(team);
1355 static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx)
1357 ctx->data.str_val = team->mode->kind;
1361 static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx)
1363 return team_change_mode(team, ctx->data.str_val);
1366 static int team_notify_peers_count_get(struct team *team,
1367 struct team_gsetter_ctx *ctx)
1369 ctx->data.u32_val = team->notify_peers.count;
1373 static int team_notify_peers_count_set(struct team *team,
1374 struct team_gsetter_ctx *ctx)
1376 team->notify_peers.count = ctx->data.u32_val;
1380 static int team_notify_peers_interval_get(struct team *team,
1381 struct team_gsetter_ctx *ctx)
1383 ctx->data.u32_val = team->notify_peers.interval;
1387 static int team_notify_peers_interval_set(struct team *team,
1388 struct team_gsetter_ctx *ctx)
1390 team->notify_peers.interval = ctx->data.u32_val;
1394 static int team_mcast_rejoin_count_get(struct team *team,
1395 struct team_gsetter_ctx *ctx)
1397 ctx->data.u32_val = team->mcast_rejoin.count;
1401 static int team_mcast_rejoin_count_set(struct team *team,
1402 struct team_gsetter_ctx *ctx)
1404 team->mcast_rejoin.count = ctx->data.u32_val;
1408 static int team_mcast_rejoin_interval_get(struct team *team,
1409 struct team_gsetter_ctx *ctx)
1411 ctx->data.u32_val = team->mcast_rejoin.interval;
1415 static int team_mcast_rejoin_interval_set(struct team *team,
1416 struct team_gsetter_ctx *ctx)
1418 team->mcast_rejoin.interval = ctx->data.u32_val;
1422 static int team_port_en_option_get(struct team *team,
1423 struct team_gsetter_ctx *ctx)
1425 struct team_port *port = ctx->info->port;
1427 ctx->data.bool_val = team_port_enabled(port);
1431 static int team_port_en_option_set(struct team *team,
1432 struct team_gsetter_ctx *ctx)
1434 struct team_port *port = ctx->info->port;
1436 if (ctx->data.bool_val)
1437 team_port_enable(team, port);
1439 team_port_disable(team, port);
1443 static int team_user_linkup_option_get(struct team *team,
1444 struct team_gsetter_ctx *ctx)
1446 struct team_port *port = ctx->info->port;
1448 ctx->data.bool_val = port->user.linkup;
1452 static void __team_carrier_check(struct team *team);
1454 static int team_user_linkup_option_set(struct team *team,
1455 struct team_gsetter_ctx *ctx)
1457 struct team_port *port = ctx->info->port;
1459 port->user.linkup = ctx->data.bool_val;
1460 team_refresh_port_linkup(port);
1461 __team_carrier_check(port->team);
1465 static int team_user_linkup_en_option_get(struct team *team,
1466 struct team_gsetter_ctx *ctx)
1468 struct team_port *port = ctx->info->port;
1470 ctx->data.bool_val = port->user.linkup_enabled;
1474 static int team_user_linkup_en_option_set(struct team *team,
1475 struct team_gsetter_ctx *ctx)
1477 struct team_port *port = ctx->info->port;
1479 port->user.linkup_enabled = ctx->data.bool_val;
1480 team_refresh_port_linkup(port);
1481 __team_carrier_check(port->team);
1485 static int team_priority_option_get(struct team *team,
1486 struct team_gsetter_ctx *ctx)
1488 struct team_port *port = ctx->info->port;
1490 ctx->data.s32_val = port->priority;
1494 static int team_priority_option_set(struct team *team,
1495 struct team_gsetter_ctx *ctx)
1497 struct team_port *port = ctx->info->port;
1498 s32 priority = ctx->data.s32_val;
1500 if (port->priority == priority)
1502 port->priority = priority;
1503 team_queue_override_port_prio_changed(team, port);
1507 static int team_queue_id_option_get(struct team *team,
1508 struct team_gsetter_ctx *ctx)
1510 struct team_port *port = ctx->info->port;
1512 ctx->data.u32_val = port->queue_id;
1516 static int team_queue_id_option_set(struct team *team,
1517 struct team_gsetter_ctx *ctx)
1519 struct team_port *port = ctx->info->port;
1520 u16 new_queue_id = ctx->data.u32_val;
1522 if (port->queue_id == new_queue_id)
1524 if (new_queue_id >= team->dev->real_num_tx_queues)
1526 team_queue_override_port_change_queue_id(team, port, new_queue_id);
1530 static const struct team_option team_options[] = {
1533 .type = TEAM_OPTION_TYPE_STRING,
1534 .getter = team_mode_option_get,
1535 .setter = team_mode_option_set,
1538 .name = "notify_peers_count",
1539 .type = TEAM_OPTION_TYPE_U32,
1540 .getter = team_notify_peers_count_get,
1541 .setter = team_notify_peers_count_set,
1544 .name = "notify_peers_interval",
1545 .type = TEAM_OPTION_TYPE_U32,
1546 .getter = team_notify_peers_interval_get,
1547 .setter = team_notify_peers_interval_set,
1550 .name = "mcast_rejoin_count",
1551 .type = TEAM_OPTION_TYPE_U32,
1552 .getter = team_mcast_rejoin_count_get,
1553 .setter = team_mcast_rejoin_count_set,
1556 .name = "mcast_rejoin_interval",
1557 .type = TEAM_OPTION_TYPE_U32,
1558 .getter = team_mcast_rejoin_interval_get,
1559 .setter = team_mcast_rejoin_interval_set,
1563 .type = TEAM_OPTION_TYPE_BOOL,
1565 .getter = team_port_en_option_get,
1566 .setter = team_port_en_option_set,
1569 .name = "user_linkup",
1570 .type = TEAM_OPTION_TYPE_BOOL,
1572 .getter = team_user_linkup_option_get,
1573 .setter = team_user_linkup_option_set,
1576 .name = "user_linkup_enabled",
1577 .type = TEAM_OPTION_TYPE_BOOL,
1579 .getter = team_user_linkup_en_option_get,
1580 .setter = team_user_linkup_en_option_set,
1584 .type = TEAM_OPTION_TYPE_S32,
1586 .getter = team_priority_option_get,
1587 .setter = team_priority_option_set,
1591 .type = TEAM_OPTION_TYPE_U32,
1593 .getter = team_queue_id_option_get,
1594 .setter = team_queue_id_option_set,
1599 static int team_init(struct net_device *dev)
1601 struct team *team = netdev_priv(dev);
1606 mutex_init(&team->lock);
1607 team_set_no_mode(team);
1609 team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats);
1610 if (!team->pcpu_stats)
1613 for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
1614 INIT_HLIST_HEAD(&team->en_port_hlist[i]);
1615 INIT_LIST_HEAD(&team->port_list);
1616 err = team_queue_override_init(team);
1618 goto err_team_queue_override_init;
1620 team_adjust_ops(team);
1622 INIT_LIST_HEAD(&team->option_list);
1623 INIT_LIST_HEAD(&team->option_inst_list);
1625 team_notify_peers_init(team);
1626 team_mcast_rejoin_init(team);
1628 err = team_options_register(team, team_options, ARRAY_SIZE(team_options));
1630 goto err_options_register;
1631 netif_carrier_off(dev);
1633 netdev_lockdep_set_classes(dev);
1637 err_options_register:
1638 team_mcast_rejoin_fini(team);
1639 team_notify_peers_fini(team);
1640 team_queue_override_fini(team);
1641 err_team_queue_override_init:
1642 free_percpu(team->pcpu_stats);
1647 static void team_uninit(struct net_device *dev)
1649 struct team *team = netdev_priv(dev);
1650 struct team_port *port;
1651 struct team_port *tmp;
1653 mutex_lock(&team->lock);
1654 list_for_each_entry_safe(port, tmp, &team->port_list, list)
1655 team_port_del(team, port->dev);
1657 __team_change_mode(team, NULL); /* cleanup */
1658 __team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
1659 team_mcast_rejoin_fini(team);
1660 team_notify_peers_fini(team);
1661 team_queue_override_fini(team);
1662 mutex_unlock(&team->lock);
1663 netdev_change_features(dev);
1666 static void team_destructor(struct net_device *dev)
1668 struct team *team = netdev_priv(dev);
1670 free_percpu(team->pcpu_stats);
1673 static int team_open(struct net_device *dev)
1678 static int team_close(struct net_device *dev)
1684 * note: already called with rcu_read_lock
1686 static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
1688 struct team *team = netdev_priv(dev);
1690 unsigned int len = skb->len;
1692 tx_success = team_queue_override_transmit(team, skb);
1694 tx_success = team->ops.transmit(team, skb);
1696 struct team_pcpu_stats *pcpu_stats;
1698 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
1699 u64_stats_update_begin(&pcpu_stats->syncp);
1700 pcpu_stats->tx_packets++;
1701 pcpu_stats->tx_bytes += len;
1702 u64_stats_update_end(&pcpu_stats->syncp);
1704 this_cpu_inc(team->pcpu_stats->tx_dropped);
1707 return NETDEV_TX_OK;
1710 static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb,
1711 struct net_device *sb_dev,
1712 select_queue_fallback_t fallback)
1715 * This helper function exists to help dev_pick_tx get the correct
1716 * destination queue. Using a helper function skips a call to
1717 * skb_tx_hash and will put the skbs in the queue we expect on their
1718 * way down to the team driver.
1720 u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
1723 * Save the original txq to restore before passing to the driver
1725 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
1727 if (unlikely(txq >= dev->real_num_tx_queues)) {
1729 txq -= dev->real_num_tx_queues;
1730 } while (txq >= dev->real_num_tx_queues);
1735 static void team_change_rx_flags(struct net_device *dev, int change)
1737 struct team *team = netdev_priv(dev);
1738 struct team_port *port;
1742 list_for_each_entry_rcu(port, &team->port_list, list) {
1743 if (change & IFF_PROMISC) {
1744 inc = dev->flags & IFF_PROMISC ? 1 : -1;
1745 dev_set_promiscuity(port->dev, inc);
1747 if (change & IFF_ALLMULTI) {
1748 inc = dev->flags & IFF_ALLMULTI ? 1 : -1;
1749 dev_set_allmulti(port->dev, inc);
1755 static void team_set_rx_mode(struct net_device *dev)
1757 struct team *team = netdev_priv(dev);
1758 struct team_port *port;
1761 list_for_each_entry_rcu(port, &team->port_list, list) {
1762 dev_uc_sync_multiple(port->dev, dev);
1763 dev_mc_sync_multiple(port->dev, dev);
1768 static int team_set_mac_address(struct net_device *dev, void *p)
1770 struct sockaddr *addr = p;
1771 struct team *team = netdev_priv(dev);
1772 struct team_port *port;
1774 if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
1775 return -EADDRNOTAVAIL;
1776 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1777 mutex_lock(&team->lock);
1778 list_for_each_entry(port, &team->port_list, list)
1779 if (team->ops.port_change_dev_addr)
1780 team->ops.port_change_dev_addr(team, port);
1781 mutex_unlock(&team->lock);
1785 static int team_change_mtu(struct net_device *dev, int new_mtu)
1787 struct team *team = netdev_priv(dev);
1788 struct team_port *port;
1792 * Alhough this is reader, it's guarded by team lock. It's not possible
1793 * to traverse list in reverse under rcu_read_lock
1795 mutex_lock(&team->lock);
1796 team->port_mtu_change_allowed = true;
1797 list_for_each_entry(port, &team->port_list, list) {
1798 err = dev_set_mtu(port->dev, new_mtu);
1800 netdev_err(dev, "Device %s failed to change mtu",
1805 team->port_mtu_change_allowed = false;
1806 mutex_unlock(&team->lock);
1813 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1814 dev_set_mtu(port->dev, dev->mtu);
1815 team->port_mtu_change_allowed = false;
1816 mutex_unlock(&team->lock);
1822 team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1824 struct team *team = netdev_priv(dev);
1825 struct team_pcpu_stats *p;
1826 u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes;
1827 u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0;
1831 for_each_possible_cpu(i) {
1832 p = per_cpu_ptr(team->pcpu_stats, i);
1834 start = u64_stats_fetch_begin_irq(&p->syncp);
1835 rx_packets = p->rx_packets;
1836 rx_bytes = p->rx_bytes;
1837 rx_multicast = p->rx_multicast;
1838 tx_packets = p->tx_packets;
1839 tx_bytes = p->tx_bytes;
1840 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
1842 stats->rx_packets += rx_packets;
1843 stats->rx_bytes += rx_bytes;
1844 stats->multicast += rx_multicast;
1845 stats->tx_packets += tx_packets;
1846 stats->tx_bytes += tx_bytes;
1848 * rx_dropped, tx_dropped & rx_nohandler are u32,
1849 * updated without syncp protection.
1851 rx_dropped += p->rx_dropped;
1852 tx_dropped += p->tx_dropped;
1853 rx_nohandler += p->rx_nohandler;
1855 stats->rx_dropped = rx_dropped;
1856 stats->tx_dropped = tx_dropped;
1857 stats->rx_nohandler = rx_nohandler;
1860 static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
1862 struct team *team = netdev_priv(dev);
1863 struct team_port *port;
1867 * Alhough this is reader, it's guarded by team lock. It's not possible
1868 * to traverse list in reverse under rcu_read_lock
1870 mutex_lock(&team->lock);
1871 list_for_each_entry(port, &team->port_list, list) {
1872 err = vlan_vid_add(port->dev, proto, vid);
1876 mutex_unlock(&team->lock);
1881 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1882 vlan_vid_del(port->dev, proto, vid);
1883 mutex_unlock(&team->lock);
1888 static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
1890 struct team *team = netdev_priv(dev);
1891 struct team_port *port;
1893 mutex_lock(&team->lock);
1894 list_for_each_entry(port, &team->port_list, list)
1895 vlan_vid_del(port->dev, proto, vid);
1896 mutex_unlock(&team->lock);
1901 #ifdef CONFIG_NET_POLL_CONTROLLER
1902 static void team_poll_controller(struct net_device *dev)
1906 static void __team_netpoll_cleanup(struct team *team)
1908 struct team_port *port;
1910 list_for_each_entry(port, &team->port_list, list)
1911 team_port_disable_netpoll(port);
1914 static void team_netpoll_cleanup(struct net_device *dev)
1916 struct team *team = netdev_priv(dev);
1918 mutex_lock(&team->lock);
1919 __team_netpoll_cleanup(team);
1920 mutex_unlock(&team->lock);
1923 static int team_netpoll_setup(struct net_device *dev,
1924 struct netpoll_info *npifo)
1926 struct team *team = netdev_priv(dev);
1927 struct team_port *port;
1930 mutex_lock(&team->lock);
1931 list_for_each_entry(port, &team->port_list, list) {
1932 err = __team_port_enable_netpoll(port);
1934 __team_netpoll_cleanup(team);
1938 mutex_unlock(&team->lock);
1943 static int team_add_slave(struct net_device *dev, struct net_device *port_dev,
1944 struct netlink_ext_ack *extack)
1946 struct team *team = netdev_priv(dev);
1949 mutex_lock(&team->lock);
1950 err = team_port_add(team, port_dev, extack);
1951 mutex_unlock(&team->lock);
1954 netdev_change_features(dev);
1959 static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
1961 struct team *team = netdev_priv(dev);
1964 mutex_lock(&team->lock);
1965 err = team_port_del(team, port_dev);
1966 mutex_unlock(&team->lock);
1969 netdev_change_features(dev);
1974 static netdev_features_t team_fix_features(struct net_device *dev,
1975 netdev_features_t features)
1977 struct team_port *port;
1978 struct team *team = netdev_priv(dev);
1979 netdev_features_t mask;
1982 features &= ~NETIF_F_ONE_FOR_ALL;
1983 features |= NETIF_F_ALL_FOR_ALL;
1986 list_for_each_entry_rcu(port, &team->port_list, list) {
1987 features = netdev_increment_features(features,
1988 port->dev->features,
1993 features = netdev_add_tso_features(features, mask);
1998 static int team_change_carrier(struct net_device *dev, bool new_carrier)
2000 struct team *team = netdev_priv(dev);
2002 team->user_carrier_enabled = true;
2005 netif_carrier_on(dev);
2007 netif_carrier_off(dev);
2011 static const struct net_device_ops team_netdev_ops = {
2012 .ndo_init = team_init,
2013 .ndo_uninit = team_uninit,
2014 .ndo_open = team_open,
2015 .ndo_stop = team_close,
2016 .ndo_start_xmit = team_xmit,
2017 .ndo_select_queue = team_select_queue,
2018 .ndo_change_rx_flags = team_change_rx_flags,
2019 .ndo_set_rx_mode = team_set_rx_mode,
2020 .ndo_set_mac_address = team_set_mac_address,
2021 .ndo_change_mtu = team_change_mtu,
2022 .ndo_get_stats64 = team_get_stats64,
2023 .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid,
2024 .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid,
2025 #ifdef CONFIG_NET_POLL_CONTROLLER
2026 .ndo_poll_controller = team_poll_controller,
2027 .ndo_netpoll_setup = team_netpoll_setup,
2028 .ndo_netpoll_cleanup = team_netpoll_cleanup,
2030 .ndo_add_slave = team_add_slave,
2031 .ndo_del_slave = team_del_slave,
2032 .ndo_fix_features = team_fix_features,
2033 .ndo_change_carrier = team_change_carrier,
2034 .ndo_features_check = passthru_features_check,
2037 /***********************
2039 ***********************/
2041 static void team_ethtool_get_drvinfo(struct net_device *dev,
2042 struct ethtool_drvinfo *drvinfo)
2044 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
2045 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
2048 static const struct ethtool_ops team_ethtool_ops = {
2049 .get_drvinfo = team_ethtool_get_drvinfo,
2050 .get_link = ethtool_op_get_link,
2053 /***********************
2054 * rt netlink interface
2055 ***********************/
2057 static void team_setup_by_port(struct net_device *dev,
2058 struct net_device *port_dev)
2060 dev->header_ops = port_dev->header_ops;
2061 dev->type = port_dev->type;
2062 dev->hard_header_len = port_dev->hard_header_len;
2063 dev->addr_len = port_dev->addr_len;
2064 dev->mtu = port_dev->mtu;
2065 memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
2066 eth_hw_addr_inherit(dev, port_dev);
2069 static int team_dev_type_check_change(struct net_device *dev,
2070 struct net_device *port_dev)
2072 struct team *team = netdev_priv(dev);
2073 char *portname = port_dev->name;
2076 if (dev->type == port_dev->type)
2078 if (!list_empty(&team->port_list)) {
2079 netdev_err(dev, "Device %s is of different type\n", portname);
2082 err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
2083 err = notifier_to_errno(err);
2085 netdev_err(dev, "Refused to change device type\n");
2090 team_setup_by_port(dev, port_dev);
2091 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
2095 static void team_setup(struct net_device *dev)
2098 dev->max_mtu = ETH_MAX_MTU;
2100 dev->netdev_ops = &team_netdev_ops;
2101 dev->ethtool_ops = &team_ethtool_ops;
2102 dev->needs_free_netdev = true;
2103 dev->priv_destructor = team_destructor;
2104 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
2105 dev->priv_flags |= IFF_NO_QUEUE;
2106 dev->priv_flags |= IFF_TEAM;
2109 * Indicate we support unicast address filtering. That way core won't
2110 * bring us to promisc mode in case a unicast addr is added.
2111 * Let this up to underlay drivers.
2113 dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
2115 dev->features |= NETIF_F_LLTX;
2116 dev->features |= NETIF_F_GRO;
2118 /* Don't allow team devices to change network namespaces. */
2119 dev->features |= NETIF_F_NETNS_LOCAL;
2121 dev->hw_features = TEAM_VLAN_FEATURES |
2122 NETIF_F_HW_VLAN_CTAG_TX |
2123 NETIF_F_HW_VLAN_CTAG_RX |
2124 NETIF_F_HW_VLAN_CTAG_FILTER;
2126 dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
2127 dev->features |= dev->hw_features;
2130 static int team_newlink(struct net *src_net, struct net_device *dev,
2131 struct nlattr *tb[], struct nlattr *data[],
2132 struct netlink_ext_ack *extack)
2134 if (tb[IFLA_ADDRESS] == NULL)
2135 eth_hw_addr_random(dev);
2137 return register_netdevice(dev);
2140 static int team_validate(struct nlattr *tb[], struct nlattr *data[],
2141 struct netlink_ext_ack *extack)
2143 if (tb[IFLA_ADDRESS]) {
2144 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
2146 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
2147 return -EADDRNOTAVAIL;
2152 static unsigned int team_get_num_tx_queues(void)
2154 return TEAM_DEFAULT_NUM_TX_QUEUES;
2157 static unsigned int team_get_num_rx_queues(void)
2159 return TEAM_DEFAULT_NUM_RX_QUEUES;
2162 static struct rtnl_link_ops team_link_ops __read_mostly = {
2164 .priv_size = sizeof(struct team),
2165 .setup = team_setup,
2166 .newlink = team_newlink,
2167 .validate = team_validate,
2168 .get_num_tx_queues = team_get_num_tx_queues,
2169 .get_num_rx_queues = team_get_num_rx_queues,
2173 /***********************************
2174 * Generic netlink custom interface
2175 ***********************************/
2177 static struct genl_family team_nl_family;
2179 static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = {
2180 [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, },
2181 [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 },
2182 [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED },
2183 [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED },
2186 static const struct nla_policy
2187 team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = {
2188 [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, },
2189 [TEAM_ATTR_OPTION_NAME] = {
2191 .len = TEAM_STRING_MAX_LEN,
2193 [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG },
2194 [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 },
2195 [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY },
2198 static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
2200 struct sk_buff *msg;
2204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2208 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
2209 &team_nl_family, 0, TEAM_CMD_NOOP);
2215 genlmsg_end(msg, hdr);
2217 return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
2226 * Netlink cmd functions should be locked by following two functions.
2227 * Since dev gets held here, that ensures dev won't disappear in between.
2229 static struct team *team_nl_team_get(struct genl_info *info)
2231 struct net *net = genl_info_net(info);
2233 struct net_device *dev;
2236 if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX])
2239 ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]);
2240 dev = dev_get_by_index(net, ifindex);
2241 if (!dev || dev->netdev_ops != &team_netdev_ops) {
2247 team = netdev_priv(dev);
2248 mutex_lock(&team->lock);
2252 static void team_nl_team_put(struct team *team)
2254 mutex_unlock(&team->lock);
2258 typedef int team_nl_send_func_t(struct sk_buff *skb,
2259 struct team *team, u32 portid);
2261 static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
2263 return genlmsg_unicast(dev_net(team->dev), skb, portid);
2266 static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
2267 struct team_option_inst *opt_inst)
2269 struct nlattr *option_item;
2270 struct team_option *option = opt_inst->option;
2271 struct team_option_inst_info *opt_inst_info = &opt_inst->info;
2272 struct team_gsetter_ctx ctx;
2275 ctx.info = opt_inst_info;
2276 err = team_option_get(team, opt_inst, &ctx);
2280 option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION);
2284 if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name))
2286 if (opt_inst_info->port &&
2287 nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX,
2288 opt_inst_info->port->dev->ifindex))
2290 if (opt_inst->option->array_size &&
2291 nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX,
2292 opt_inst_info->array_index))
2295 switch (option->type) {
2296 case TEAM_OPTION_TYPE_U32:
2297 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32))
2299 if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val))
2302 case TEAM_OPTION_TYPE_STRING:
2303 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING))
2305 if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA,
2309 case TEAM_OPTION_TYPE_BINARY:
2310 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY))
2312 if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len,
2313 ctx.data.bin_val.ptr))
2316 case TEAM_OPTION_TYPE_BOOL:
2317 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG))
2319 if (ctx.data.bool_val &&
2320 nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
2323 case TEAM_OPTION_TYPE_S32:
2324 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
2326 if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
2332 if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED))
2334 if (opt_inst->changed) {
2335 if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED))
2337 opt_inst->changed = false;
2339 nla_nest_end(skb, option_item);
2343 nla_nest_cancel(skb, option_item);
2347 static int __send_and_alloc_skb(struct sk_buff **pskb,
2348 struct team *team, u32 portid,
2349 team_nl_send_func_t *send_func)
2354 err = send_func(*pskb, team, portid);
2358 *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2364 static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
2365 int flags, team_nl_send_func_t *send_func,
2366 struct list_head *sel_opt_inst_list)
2368 struct nlattr *option_list;
2369 struct nlmsghdr *nlh;
2371 struct team_option_inst *opt_inst;
2373 struct sk_buff *skb = NULL;
2377 opt_inst = list_first_entry(sel_opt_inst_list,
2378 struct team_option_inst, tmp_list);
2381 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2385 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2386 TEAM_CMD_OPTIONS_GET);
2392 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2393 goto nla_put_failure;
2394 option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION);
2396 goto nla_put_failure;
2400 list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) {
2401 err = team_nl_fill_one_option_get(skb, team, opt_inst);
2403 if (err == -EMSGSIZE) {
2414 nla_nest_end(skb, option_list);
2415 genlmsg_end(skb, hdr);
2420 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2422 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2428 return send_func(skb, team, portid);
2437 static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info)
2440 struct team_option_inst *opt_inst;
2442 LIST_HEAD(sel_opt_inst_list);
2444 team = team_nl_team_get(info);
2448 list_for_each_entry(opt_inst, &team->option_inst_list, list)
2449 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2450 err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq,
2451 NLM_F_ACK, team_nl_send_unicast,
2452 &sel_opt_inst_list);
2454 team_nl_team_put(team);
2459 static int team_nl_send_event_options_get(struct team *team,
2460 struct list_head *sel_opt_inst_list);
2462 static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
2467 struct nlattr *nl_option;
2468 LIST_HEAD(opt_inst_list);
2472 team = team_nl_team_get(info);
2479 if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
2484 nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) {
2485 struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1];
2486 struct nlattr *attr;
2487 struct nlattr *attr_data;
2488 enum team_option_type opt_type;
2489 int opt_port_ifindex = 0; /* != 0 for per-port options */
2490 u32 opt_array_index = 0;
2491 bool opt_is_array = false;
2492 struct team_option_inst *opt_inst;
2494 bool opt_found = false;
2496 if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) {
2500 err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX,
2501 nl_option, team_nl_option_policy,
2505 if (!opt_attrs[TEAM_ATTR_OPTION_NAME] ||
2506 !opt_attrs[TEAM_ATTR_OPTION_TYPE]) {
2510 switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) {
2512 opt_type = TEAM_OPTION_TYPE_U32;
2515 opt_type = TEAM_OPTION_TYPE_STRING;
2518 opt_type = TEAM_OPTION_TYPE_BINARY;
2521 opt_type = TEAM_OPTION_TYPE_BOOL;
2524 opt_type = TEAM_OPTION_TYPE_S32;
2530 attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA];
2531 if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) {
2536 opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]);
2537 attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX];
2539 opt_port_ifindex = nla_get_u32(attr);
2541 attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX];
2543 opt_is_array = true;
2544 opt_array_index = nla_get_u32(attr);
2547 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2548 struct team_option *option = opt_inst->option;
2549 struct team_gsetter_ctx ctx;
2550 struct team_option_inst_info *opt_inst_info;
2553 opt_inst_info = &opt_inst->info;
2554 tmp_ifindex = opt_inst_info->port ?
2555 opt_inst_info->port->dev->ifindex : 0;
2556 if (option->type != opt_type ||
2557 strcmp(option->name, opt_name) ||
2558 tmp_ifindex != opt_port_ifindex ||
2559 (option->array_size && !opt_is_array) ||
2560 opt_inst_info->array_index != opt_array_index)
2563 ctx.info = opt_inst_info;
2565 case TEAM_OPTION_TYPE_U32:
2566 ctx.data.u32_val = nla_get_u32(attr_data);
2568 case TEAM_OPTION_TYPE_STRING:
2569 if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
2573 ctx.data.str_val = nla_data(attr_data);
2575 case TEAM_OPTION_TYPE_BINARY:
2576 ctx.data.bin_val.len = nla_len(attr_data);
2577 ctx.data.bin_val.ptr = nla_data(attr_data);
2579 case TEAM_OPTION_TYPE_BOOL:
2580 ctx.data.bool_val = attr_data ? true : false;
2582 case TEAM_OPTION_TYPE_S32:
2583 ctx.data.s32_val = nla_get_s32(attr_data);
2588 err = team_option_set(team, opt_inst, &ctx);
2591 opt_inst->changed = true;
2593 /* dumb/evil user-space can send us duplicate opt,
2594 * keep only the last one
2596 if (__team_option_inst_tmp_find(&opt_inst_list,
2600 list_add(&opt_inst->tmp_list, &opt_inst_list);
2608 err = team_nl_send_event_options_get(team, &opt_inst_list);
2611 team_nl_team_put(team);
2617 static int team_nl_fill_one_port_get(struct sk_buff *skb,
2618 struct team_port *port)
2620 struct nlattr *port_item;
2622 port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT);
2625 if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex))
2627 if (port->changed) {
2628 if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED))
2630 port->changed = false;
2632 if ((port->removed &&
2633 nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) ||
2634 (port->state.linkup &&
2635 nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) ||
2636 nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) ||
2637 nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex))
2639 nla_nest_end(skb, port_item);
2643 nla_nest_cancel(skb, port_item);
2647 static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,
2648 int flags, team_nl_send_func_t *send_func,
2649 struct team_port *one_port)
2651 struct nlattr *port_list;
2652 struct nlmsghdr *nlh;
2654 struct team_port *port;
2656 struct sk_buff *skb = NULL;
2660 port = list_first_entry_or_null(&team->port_list,
2661 struct team_port, list);
2664 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2668 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2669 TEAM_CMD_PORT_LIST_GET);
2675 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2676 goto nla_put_failure;
2677 port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT);
2679 goto nla_put_failure;
2684 /* If one port is selected, called wants to send port list containing
2685 * only this port. Otherwise go through all listed ports and send all
2688 err = team_nl_fill_one_port_get(skb, one_port);
2692 list_for_each_entry_from(port, &team->port_list, list) {
2693 err = team_nl_fill_one_port_get(skb, port);
2695 if (err == -EMSGSIZE) {
2707 nla_nest_end(skb, port_list);
2708 genlmsg_end(skb, hdr);
2713 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2715 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2721 return send_func(skb, team, portid);
2730 static int team_nl_cmd_port_list_get(struct sk_buff *skb,
2731 struct genl_info *info)
2736 team = team_nl_team_get(info);
2740 err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq,
2741 NLM_F_ACK, team_nl_send_unicast, NULL);
2743 team_nl_team_put(team);
2748 static const struct genl_ops team_nl_ops[] = {
2750 .cmd = TEAM_CMD_NOOP,
2751 .doit = team_nl_cmd_noop,
2752 .policy = team_nl_policy,
2755 .cmd = TEAM_CMD_OPTIONS_SET,
2756 .doit = team_nl_cmd_options_set,
2757 .policy = team_nl_policy,
2758 .flags = GENL_ADMIN_PERM,
2761 .cmd = TEAM_CMD_OPTIONS_GET,
2762 .doit = team_nl_cmd_options_get,
2763 .policy = team_nl_policy,
2764 .flags = GENL_ADMIN_PERM,
2767 .cmd = TEAM_CMD_PORT_LIST_GET,
2768 .doit = team_nl_cmd_port_list_get,
2769 .policy = team_nl_policy,
2770 .flags = GENL_ADMIN_PERM,
2774 static const struct genl_multicast_group team_nl_mcgrps[] = {
2775 { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
2778 static struct genl_family team_nl_family __ro_after_init = {
2779 .name = TEAM_GENL_NAME,
2780 .version = TEAM_GENL_VERSION,
2781 .maxattr = TEAM_ATTR_MAX,
2783 .module = THIS_MODULE,
2785 .n_ops = ARRAY_SIZE(team_nl_ops),
2786 .mcgrps = team_nl_mcgrps,
2787 .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps),
2790 static int team_nl_send_multicast(struct sk_buff *skb,
2791 struct team *team, u32 portid)
2793 return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
2794 skb, 0, 0, GFP_KERNEL);
2797 static int team_nl_send_event_options_get(struct team *team,
2798 struct list_head *sel_opt_inst_list)
2800 return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast,
2804 static int team_nl_send_event_port_get(struct team *team,
2805 struct team_port *port)
2807 return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast,
2811 static int __init team_nl_init(void)
2813 return genl_register_family(&team_nl_family);
2816 static void team_nl_fini(void)
2818 genl_unregister_family(&team_nl_family);
2826 static void __team_options_change_check(struct team *team)
2829 struct team_option_inst *opt_inst;
2830 LIST_HEAD(sel_opt_inst_list);
2832 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2833 if (opt_inst->changed)
2834 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2836 err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
2837 if (err && err != -ESRCH)
2838 netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
2842 /* rtnl lock is held */
2844 static void __team_port_change_send(struct team_port *port, bool linkup)
2848 port->changed = true;
2849 port->state.linkup = linkup;
2850 team_refresh_port_linkup(port);
2852 struct ethtool_link_ksettings ecmd;
2854 err = __ethtool_get_link_ksettings(port->dev, &ecmd);
2856 port->state.speed = ecmd.base.speed;
2857 port->state.duplex = ecmd.base.duplex;
2861 port->state.speed = 0;
2862 port->state.duplex = 0;
2865 err = team_nl_send_event_port_get(port->team, port);
2866 if (err && err != -ESRCH)
2867 netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
2868 port->dev->name, err);
2872 static void __team_carrier_check(struct team *team)
2874 struct team_port *port;
2877 if (team->user_carrier_enabled)
2880 team_linkup = false;
2881 list_for_each_entry(port, &team->port_list, list) {
2889 netif_carrier_on(team->dev);
2891 netif_carrier_off(team->dev);
2894 static void __team_port_change_check(struct team_port *port, bool linkup)
2896 if (port->state.linkup != linkup)
2897 __team_port_change_send(port, linkup);
2898 __team_carrier_check(port->team);
2901 static void __team_port_change_port_added(struct team_port *port, bool linkup)
2903 __team_port_change_send(port, linkup);
2904 __team_carrier_check(port->team);
2907 static void __team_port_change_port_removed(struct team_port *port)
2909 port->removed = true;
2910 __team_port_change_send(port, false);
2911 __team_carrier_check(port->team);
2914 static void team_port_change_check(struct team_port *port, bool linkup)
2916 struct team *team = port->team;
2918 mutex_lock(&team->lock);
2919 __team_port_change_check(port, linkup);
2920 mutex_unlock(&team->lock);
2924 /************************************
2925 * Net device notifier event handler
2926 ************************************/
2928 static int team_device_event(struct notifier_block *unused,
2929 unsigned long event, void *ptr)
2931 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2932 struct team_port *port;
2934 port = team_port_get_rtnl(dev);
2940 if (netif_carrier_ok(dev))
2941 team_port_change_check(port, true);
2944 team_port_change_check(port, false);
2947 if (netif_running(port->dev))
2948 team_port_change_check(port,
2949 !!netif_oper_up(port->dev));
2951 case NETDEV_UNREGISTER:
2952 team_del_slave(port->team->dev, dev);
2954 case NETDEV_FEAT_CHANGE:
2955 team_compute_features(port->team);
2957 case NETDEV_PRECHANGEMTU:
2958 /* Forbid to change mtu of underlaying device */
2959 if (!port->team->port_mtu_change_allowed)
2962 case NETDEV_PRE_TYPE_CHANGE:
2963 /* Forbid to change type of underlaying device */
2965 case NETDEV_RESEND_IGMP:
2966 /* Propagate to master device */
2967 call_netdevice_notifiers(event, port->team->dev);
2973 static struct notifier_block team_notifier_block __read_mostly = {
2974 .notifier_call = team_device_event,
2978 /***********************
2979 * Module init and exit
2980 ***********************/
2982 static int __init team_module_init(void)
2986 register_netdevice_notifier(&team_notifier_block);
2988 err = rtnl_link_register(&team_link_ops);
2992 err = team_nl_init();
2999 rtnl_link_unregister(&team_link_ops);
3002 unregister_netdevice_notifier(&team_notifier_block);
3007 static void __exit team_module_exit(void)
3010 rtnl_link_unregister(&team_link_ops);
3011 unregister_netdevice_notifier(&team_notifier_block);
3014 module_init(team_module_init);
3015 module_exit(team_module_exit);
3017 MODULE_LICENSE("GPL v2");
3018 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
3019 MODULE_DESCRIPTION("Ethernet team device driver");
3020 MODULE_ALIAS_RTNL_LINK(DRV_NAME);