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_lower_state_changed(struct team_port *port)
96 struct netdev_lag_lower_state_info info;
98 info.link_up = port->linkup;
99 info.tx_enabled = team_port_enabled(port);
100 netdev_lower_state_changed(port->dev, &info);
103 static void team_refresh_port_linkup(struct team_port *port)
105 bool new_linkup = port->user.linkup_enabled ? port->user.linkup :
108 if (port->linkup != new_linkup) {
109 port->linkup = new_linkup;
110 team_lower_state_changed(port);
119 struct team_option_inst { /* One for each option instance */
120 struct list_head list;
121 struct list_head tmp_list;
122 struct team_option *option;
123 struct team_option_inst_info info;
128 static struct team_option *__team_find_option(struct team *team,
129 const char *opt_name)
131 struct team_option *option;
133 list_for_each_entry(option, &team->option_list, list) {
134 if (strcmp(option->name, opt_name) == 0)
140 static void __team_option_inst_del(struct team_option_inst *opt_inst)
142 list_del(&opt_inst->list);
146 static void __team_option_inst_del_option(struct team *team,
147 struct team_option *option)
149 struct team_option_inst *opt_inst, *tmp;
151 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
152 if (opt_inst->option == option)
153 __team_option_inst_del(opt_inst);
157 static int __team_option_inst_add(struct team *team, struct team_option *option,
158 struct team_port *port)
160 struct team_option_inst *opt_inst;
161 unsigned int array_size;
165 array_size = option->array_size;
167 array_size = 1; /* No array but still need one instance */
169 for (i = 0; i < array_size; i++) {
170 opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL);
173 opt_inst->option = option;
174 opt_inst->info.port = port;
175 opt_inst->info.array_index = i;
176 opt_inst->changed = true;
177 opt_inst->removed = false;
178 list_add_tail(&opt_inst->list, &team->option_inst_list);
180 err = option->init(team, &opt_inst->info);
189 static int __team_option_inst_add_option(struct team *team,
190 struct team_option *option)
194 if (!option->per_port) {
195 err = __team_option_inst_add(team, option, NULL);
197 goto inst_del_option;
202 __team_option_inst_del_option(team, option);
206 static void __team_option_inst_mark_removed_option(struct team *team,
207 struct team_option *option)
209 struct team_option_inst *opt_inst;
211 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
212 if (opt_inst->option == option) {
213 opt_inst->changed = true;
214 opt_inst->removed = true;
219 static void __team_option_inst_del_port(struct team *team,
220 struct team_port *port)
222 struct team_option_inst *opt_inst, *tmp;
224 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
225 if (opt_inst->option->per_port &&
226 opt_inst->info.port == port)
227 __team_option_inst_del(opt_inst);
231 static int __team_option_inst_add_port(struct team *team,
232 struct team_port *port)
234 struct team_option *option;
237 list_for_each_entry(option, &team->option_list, list) {
238 if (!option->per_port)
240 err = __team_option_inst_add(team, option, port);
247 __team_option_inst_del_port(team, port);
251 static void __team_option_inst_mark_removed_port(struct team *team,
252 struct team_port *port)
254 struct team_option_inst *opt_inst;
256 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
257 if (opt_inst->info.port == port) {
258 opt_inst->changed = true;
259 opt_inst->removed = true;
264 static int __team_options_register(struct team *team,
265 const struct team_option *option,
269 struct team_option **dst_opts;
272 dst_opts = kzalloc(sizeof(struct team_option *) * option_count,
276 for (i = 0; i < option_count; i++, option++) {
277 if (__team_find_option(team, option->name)) {
281 dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL);
288 for (i = 0; i < option_count; i++) {
289 err = __team_option_inst_add_option(team, dst_opts[i]);
292 list_add_tail(&dst_opts[i]->list, &team->option_list);
299 for (i--; i >= 0; i--)
300 __team_option_inst_del_option(team, dst_opts[i]);
302 i = option_count - 1;
304 for (i--; i >= 0; i--)
311 static void __team_options_mark_removed(struct team *team,
312 const struct team_option *option,
317 for (i = 0; i < option_count; i++, option++) {
318 struct team_option *del_opt;
320 del_opt = __team_find_option(team, option->name);
322 __team_option_inst_mark_removed_option(team, del_opt);
326 static void __team_options_unregister(struct team *team,
327 const struct team_option *option,
332 for (i = 0; i < option_count; i++, option++) {
333 struct team_option *del_opt;
335 del_opt = __team_find_option(team, option->name);
337 __team_option_inst_del_option(team, del_opt);
338 list_del(&del_opt->list);
344 static void __team_options_change_check(struct team *team);
346 int team_options_register(struct team *team,
347 const struct team_option *option,
352 err = __team_options_register(team, option, option_count);
355 __team_options_change_check(team);
358 EXPORT_SYMBOL(team_options_register);
360 void team_options_unregister(struct team *team,
361 const struct team_option *option,
364 __team_options_mark_removed(team, option, option_count);
365 __team_options_change_check(team);
366 __team_options_unregister(team, option, option_count);
368 EXPORT_SYMBOL(team_options_unregister);
370 static int team_option_get(struct team *team,
371 struct team_option_inst *opt_inst,
372 struct team_gsetter_ctx *ctx)
374 if (!opt_inst->option->getter)
376 return opt_inst->option->getter(team, ctx);
379 static int team_option_set(struct team *team,
380 struct team_option_inst *opt_inst,
381 struct team_gsetter_ctx *ctx)
383 if (!opt_inst->option->setter)
385 return opt_inst->option->setter(team, ctx);
388 void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info)
390 struct team_option_inst *opt_inst;
392 opt_inst = container_of(opt_inst_info, struct team_option_inst, info);
393 opt_inst->changed = true;
395 EXPORT_SYMBOL(team_option_inst_set_change);
397 void team_options_change_check(struct team *team)
399 __team_options_change_check(team);
401 EXPORT_SYMBOL(team_options_change_check);
408 static LIST_HEAD(mode_list);
409 static DEFINE_SPINLOCK(mode_list_lock);
411 struct team_mode_item {
412 struct list_head list;
413 const struct team_mode *mode;
416 static struct team_mode_item *__find_mode(const char *kind)
418 struct team_mode_item *mitem;
420 list_for_each_entry(mitem, &mode_list, list) {
421 if (strcmp(mitem->mode->kind, kind) == 0)
427 static bool is_good_mode_name(const char *name)
429 while (*name != '\0') {
430 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
437 int team_mode_register(const struct team_mode *mode)
440 struct team_mode_item *mitem;
442 if (!is_good_mode_name(mode->kind) ||
443 mode->priv_size > TEAM_MODE_PRIV_SIZE)
446 mitem = kmalloc(sizeof(*mitem), GFP_KERNEL);
450 spin_lock(&mode_list_lock);
451 if (__find_mode(mode->kind)) {
457 list_add_tail(&mitem->list, &mode_list);
459 spin_unlock(&mode_list_lock);
462 EXPORT_SYMBOL(team_mode_register);
464 void team_mode_unregister(const struct team_mode *mode)
466 struct team_mode_item *mitem;
468 spin_lock(&mode_list_lock);
469 mitem = __find_mode(mode->kind);
471 list_del_init(&mitem->list);
474 spin_unlock(&mode_list_lock);
476 EXPORT_SYMBOL(team_mode_unregister);
478 static const struct team_mode *team_mode_get(const char *kind)
480 struct team_mode_item *mitem;
481 const struct team_mode *mode = NULL;
483 spin_lock(&mode_list_lock);
484 mitem = __find_mode(kind);
486 spin_unlock(&mode_list_lock);
487 request_module("team-mode-%s", kind);
488 spin_lock(&mode_list_lock);
489 mitem = __find_mode(kind);
493 if (!try_module_get(mode->owner))
497 spin_unlock(&mode_list_lock);
501 static void team_mode_put(const struct team_mode *mode)
503 module_put(mode->owner);
506 static bool team_dummy_transmit(struct team *team, struct sk_buff *skb)
508 dev_kfree_skb_any(skb);
512 static rx_handler_result_t team_dummy_receive(struct team *team,
513 struct team_port *port,
516 return RX_HANDLER_ANOTHER;
519 static const struct team_mode __team_no_mode = {
523 static bool team_is_mode_set(struct team *team)
525 return team->mode != &__team_no_mode;
528 static void team_set_no_mode(struct team *team)
530 team->user_carrier_enabled = false;
531 team->mode = &__team_no_mode;
534 static void team_adjust_ops(struct team *team)
537 * To avoid checks in rx/tx skb paths, ensure here that non-null and
538 * correct ops are always set.
541 if (!team->en_port_count || !team_is_mode_set(team) ||
542 !team->mode->ops->transmit)
543 team->ops.transmit = team_dummy_transmit;
545 team->ops.transmit = team->mode->ops->transmit;
547 if (!team->en_port_count || !team_is_mode_set(team) ||
548 !team->mode->ops->receive)
549 team->ops.receive = team_dummy_receive;
551 team->ops.receive = team->mode->ops->receive;
555 * We can benefit from the fact that it's ensured no port is present
556 * at the time of mode change. Therefore no packets are in fly so there's no
557 * need to set mode operations in any special way.
559 static int __team_change_mode(struct team *team,
560 const struct team_mode *new_mode)
562 /* Check if mode was previously set and do cleanup if so */
563 if (team_is_mode_set(team)) {
564 void (*exit_op)(struct team *team) = team->ops.exit;
566 /* Clear ops area so no callback is called any longer */
567 memset(&team->ops, 0, sizeof(struct team_mode_ops));
568 team_adjust_ops(team);
572 team_mode_put(team->mode);
573 team_set_no_mode(team);
574 /* zero private data area */
575 memset(&team->mode_priv, 0,
576 sizeof(struct team) - offsetof(struct team, mode_priv));
582 if (new_mode->ops->init) {
585 err = new_mode->ops->init(team);
590 team->mode = new_mode;
591 memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops));
592 team_adjust_ops(team);
597 static int team_change_mode(struct team *team, const char *kind)
599 const struct team_mode *new_mode;
600 struct net_device *dev = team->dev;
603 if (!list_empty(&team->port_list)) {
604 netdev_err(dev, "No ports can be present during mode change\n");
608 if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) {
609 netdev_err(dev, "Unable to change to the same mode the team is in\n");
613 new_mode = team_mode_get(kind);
615 netdev_err(dev, "Mode \"%s\" not found\n", kind);
619 err = __team_change_mode(team, new_mode);
621 netdev_err(dev, "Failed to change to mode \"%s\"\n", kind);
622 team_mode_put(new_mode);
626 netdev_info(dev, "Mode changed to \"%s\"\n", kind);
631 /*********************
633 *********************/
635 static void team_notify_peers_work(struct work_struct *work)
640 team = container_of(work, struct team, notify_peers.dw.work);
642 if (!rtnl_trylock()) {
643 schedule_delayed_work(&team->notify_peers.dw, 0);
646 val = atomic_dec_if_positive(&team->notify_peers.count_pending);
651 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev);
654 schedule_delayed_work(&team->notify_peers.dw,
655 msecs_to_jiffies(team->notify_peers.interval));
658 static void team_notify_peers(struct team *team)
660 if (!team->notify_peers.count || !netif_running(team->dev))
662 atomic_add(team->notify_peers.count, &team->notify_peers.count_pending);
663 schedule_delayed_work(&team->notify_peers.dw, 0);
666 static void team_notify_peers_init(struct team *team)
668 INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work);
671 static void team_notify_peers_fini(struct team *team)
673 cancel_delayed_work_sync(&team->notify_peers.dw);
677 /*******************************
678 * Send multicast group rejoins
679 *******************************/
681 static void team_mcast_rejoin_work(struct work_struct *work)
686 team = container_of(work, struct team, mcast_rejoin.dw.work);
688 if (!rtnl_trylock()) {
689 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
692 val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending);
697 call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev);
700 schedule_delayed_work(&team->mcast_rejoin.dw,
701 msecs_to_jiffies(team->mcast_rejoin.interval));
704 static void team_mcast_rejoin(struct team *team)
706 if (!team->mcast_rejoin.count || !netif_running(team->dev))
708 atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending);
709 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
712 static void team_mcast_rejoin_init(struct team *team)
714 INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work);
717 static void team_mcast_rejoin_fini(struct team *team)
719 cancel_delayed_work_sync(&team->mcast_rejoin.dw);
723 /************************
724 * Rx path frame handler
725 ************************/
727 /* note: already called with rcu_read_lock */
728 static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
730 struct sk_buff *skb = *pskb;
731 struct team_port *port;
733 rx_handler_result_t res;
735 skb = skb_share_check(skb, GFP_ATOMIC);
737 return RX_HANDLER_CONSUMED;
741 port = team_port_get_rcu(skb->dev);
743 if (!team_port_enabled(port)) {
744 /* allow exact match delivery for disabled ports */
745 res = RX_HANDLER_EXACT;
747 res = team->ops.receive(team, port, skb);
749 if (res == RX_HANDLER_ANOTHER) {
750 struct team_pcpu_stats *pcpu_stats;
752 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
753 u64_stats_update_begin(&pcpu_stats->syncp);
754 pcpu_stats->rx_packets++;
755 pcpu_stats->rx_bytes += skb->len;
756 if (skb->pkt_type == PACKET_MULTICAST)
757 pcpu_stats->rx_multicast++;
758 u64_stats_update_end(&pcpu_stats->syncp);
760 skb->dev = team->dev;
761 } else if (res == RX_HANDLER_EXACT) {
762 this_cpu_inc(team->pcpu_stats->rx_nohandler);
764 this_cpu_inc(team->pcpu_stats->rx_dropped);
771 /*************************************
772 * Multiqueue Tx port select override
773 *************************************/
775 static int team_queue_override_init(struct team *team)
777 struct list_head *listarr;
778 unsigned int queue_cnt = team->dev->num_tx_queues - 1;
783 listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL);
786 team->qom_lists = listarr;
787 for (i = 0; i < queue_cnt; i++)
788 INIT_LIST_HEAD(listarr++);
792 static void team_queue_override_fini(struct team *team)
794 kfree(team->qom_lists);
797 static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
799 return &team->qom_lists[queue_id - 1];
803 * note: already called with rcu_read_lock
805 static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
807 struct list_head *qom_list;
808 struct team_port *port;
810 if (!team->queue_override_enabled || !skb->queue_mapping)
812 qom_list = __team_get_qom_list(team, skb->queue_mapping);
813 list_for_each_entry_rcu(port, qom_list, qom_list) {
814 if (!team_dev_queue_xmit(team, port, skb))
820 static void __team_queue_override_port_del(struct team *team,
821 struct team_port *port)
825 list_del_rcu(&port->qom_list);
828 static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
829 struct team_port *cur)
831 if (port->priority < cur->priority)
833 if (port->priority > cur->priority)
835 if (port->index < cur->index)
840 static void __team_queue_override_port_add(struct team *team,
841 struct team_port *port)
843 struct team_port *cur;
844 struct list_head *qom_list;
845 struct list_head *node;
849 qom_list = __team_get_qom_list(team, port->queue_id);
851 list_for_each_entry(cur, qom_list, qom_list) {
852 if (team_queue_override_port_has_gt_prio_than(port, cur))
854 node = &cur->qom_list;
856 list_add_tail_rcu(&port->qom_list, node);
859 static void __team_queue_override_enabled_check(struct team *team)
861 struct team_port *port;
862 bool enabled = false;
864 list_for_each_entry(port, &team->port_list, list) {
865 if (port->queue_id) {
870 if (enabled == team->queue_override_enabled)
872 netdev_dbg(team->dev, "%s queue override\n",
873 enabled ? "Enabling" : "Disabling");
874 team->queue_override_enabled = enabled;
877 static void team_queue_override_port_prio_changed(struct team *team,
878 struct team_port *port)
880 if (!port->queue_id || team_port_enabled(port))
882 __team_queue_override_port_del(team, port);
883 __team_queue_override_port_add(team, port);
884 __team_queue_override_enabled_check(team);
887 static void team_queue_override_port_change_queue_id(struct team *team,
888 struct team_port *port,
891 if (team_port_enabled(port)) {
892 __team_queue_override_port_del(team, port);
893 port->queue_id = new_queue_id;
894 __team_queue_override_port_add(team, port);
895 __team_queue_override_enabled_check(team);
897 port->queue_id = new_queue_id;
901 static void team_queue_override_port_add(struct team *team,
902 struct team_port *port)
904 __team_queue_override_port_add(team, port);
905 __team_queue_override_enabled_check(team);
908 static void team_queue_override_port_del(struct team *team,
909 struct team_port *port)
911 __team_queue_override_port_del(team, port);
912 __team_queue_override_enabled_check(team);
920 static bool team_port_find(const struct team *team,
921 const struct team_port *port)
923 struct team_port *cur;
925 list_for_each_entry(cur, &team->port_list, list)
932 * Enable/disable port by adding to enabled port hashlist and setting
933 * port->index (Might be racy so reader could see incorrect ifindex when
934 * processing a flying packet, but that is not a problem). Write guarded
937 static void team_port_enable(struct team *team,
938 struct team_port *port)
940 if (team_port_enabled(port))
942 port->index = team->en_port_count++;
943 hlist_add_head_rcu(&port->hlist,
944 team_port_index_hash(team, port->index));
945 team_adjust_ops(team);
946 team_queue_override_port_add(team, port);
947 if (team->ops.port_enabled)
948 team->ops.port_enabled(team, port);
949 team_notify_peers(team);
950 team_mcast_rejoin(team);
951 team_lower_state_changed(port);
954 static void __reconstruct_port_hlist(struct team *team, int rm_index)
957 struct team_port *port;
959 for (i = rm_index + 1; i < team->en_port_count; i++) {
960 port = team_get_port_by_index(team, i);
961 hlist_del_rcu(&port->hlist);
963 hlist_add_head_rcu(&port->hlist,
964 team_port_index_hash(team, port->index));
968 static void team_port_disable(struct team *team,
969 struct team_port *port)
971 if (!team_port_enabled(port))
973 if (team->ops.port_disabled)
974 team->ops.port_disabled(team, port);
975 hlist_del_rcu(&port->hlist);
976 __reconstruct_port_hlist(team, port->index);
978 team->en_port_count--;
979 team_queue_override_port_del(team, port);
980 team_adjust_ops(team);
981 team_notify_peers(team);
982 team_mcast_rejoin(team);
983 team_lower_state_changed(port);
986 #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
987 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
988 NETIF_F_HIGHDMA | NETIF_F_LRO)
990 #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
991 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
993 static void __team_compute_features(struct team *team)
995 struct team_port *port;
996 u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL;
997 netdev_features_t enc_features = TEAM_ENC_FEATURES;
998 unsigned short max_hard_header_len = ETH_HLEN;
999 unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
1000 IFF_XMIT_DST_RELEASE_PERM;
1002 list_for_each_entry(port, &team->port_list, list) {
1003 vlan_features = netdev_increment_features(vlan_features,
1004 port->dev->vlan_features,
1005 TEAM_VLAN_FEATURES);
1007 netdev_increment_features(enc_features,
1008 port->dev->hw_enc_features,
1012 dst_release_flag &= port->dev->priv_flags;
1013 if (port->dev->hard_header_len > max_hard_header_len)
1014 max_hard_header_len = port->dev->hard_header_len;
1017 team->dev->vlan_features = vlan_features;
1018 team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL;
1019 team->dev->hard_header_len = max_hard_header_len;
1021 team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
1022 if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
1023 team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
1025 netdev_change_features(team->dev);
1028 static void team_compute_features(struct team *team)
1030 mutex_lock(&team->lock);
1031 __team_compute_features(team);
1032 mutex_unlock(&team->lock);
1035 static int team_port_enter(struct team *team, struct team_port *port)
1039 dev_hold(team->dev);
1040 if (team->ops.port_enter) {
1041 err = team->ops.port_enter(team, port);
1043 netdev_err(team->dev, "Device %s failed to enter team mode\n",
1045 goto err_port_enter;
1057 static void team_port_leave(struct team *team, struct team_port *port)
1059 if (team->ops.port_leave)
1060 team->ops.port_leave(team, port);
1064 #ifdef CONFIG_NET_POLL_CONTROLLER
1065 static int team_port_enable_netpoll(struct team *team, struct team_port *port)
1070 if (!team->dev->npinfo)
1073 np = kzalloc(sizeof(*np), GFP_KERNEL);
1077 err = __netpoll_setup(np, port->dev);
1086 static void team_port_disable_netpoll(struct team_port *port)
1088 struct netpoll *np = port->np;
1094 /* Wait for transmitting packets to finish before freeing. */
1095 synchronize_rcu_bh();
1096 __netpoll_cleanup(np);
1100 static int team_port_enable_netpoll(struct team *team, struct team_port *port)
1104 static void team_port_disable_netpoll(struct team_port *port)
1109 static int team_upper_dev_link(struct team *team, struct team_port *port)
1111 struct netdev_lag_upper_info lag_upper_info;
1114 lag_upper_info.tx_type = team->mode->lag_tx_type;
1115 err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
1119 port->dev->priv_flags |= IFF_TEAM_PORT;
1123 static void team_upper_dev_unlink(struct team *team, struct team_port *port)
1125 netdev_upper_dev_unlink(port->dev, team->dev);
1126 port->dev->priv_flags &= ~IFF_TEAM_PORT;
1129 static void __team_port_change_port_added(struct team_port *port, bool linkup);
1130 static int team_dev_type_check_change(struct net_device *dev,
1131 struct net_device *port_dev);
1133 static int team_port_add(struct team *team, struct net_device *port_dev)
1135 struct net_device *dev = team->dev;
1136 struct team_port *port;
1137 char *portname = port_dev->name;
1140 if (port_dev->flags & IFF_LOOPBACK) {
1141 netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
1146 if (team_port_exists(port_dev)) {
1147 netdev_err(dev, "Device %s is already a port "
1148 "of a team device\n", portname);
1152 if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
1153 vlan_uses_dev(dev)) {
1154 netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
1159 err = team_dev_type_check_change(dev, port_dev);
1163 if (port_dev->flags & IFF_UP) {
1164 netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
1169 port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
1174 port->dev = port_dev;
1176 INIT_LIST_HEAD(&port->qom_list);
1178 port->orig.mtu = port_dev->mtu;
1179 err = dev_set_mtu(port_dev, dev->mtu);
1181 netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err);
1185 memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
1187 err = team_port_enter(team, port);
1189 netdev_err(dev, "Device %s failed to enter team mode\n",
1191 goto err_port_enter;
1194 err = dev_open(port_dev);
1196 netdev_dbg(dev, "Device %s opening failed\n",
1201 err = vlan_vids_add_by_dev(port_dev, dev);
1203 netdev_err(dev, "Failed to add vlan ids to device %s\n",
1208 err = team_port_enable_netpoll(team, port);
1210 netdev_err(dev, "Failed to enable netpoll on device %s\n",
1212 goto err_enable_netpoll;
1215 if (!(dev->features & NETIF_F_LRO))
1216 dev_disable_lro(port_dev);
1218 err = netdev_rx_handler_register(port_dev, team_handle_frame,
1221 netdev_err(dev, "Device %s failed to register rx_handler\n",
1223 goto err_handler_register;
1226 err = team_upper_dev_link(team, port);
1228 netdev_err(dev, "Device %s failed to set upper link\n",
1230 goto err_set_upper_link;
1233 err = __team_option_inst_add_port(team, port);
1235 netdev_err(dev, "Device %s failed to add per-port options\n",
1237 goto err_option_port_add;
1241 list_add_tail_rcu(&port->list, &team->port_list);
1242 team_port_enable(team, port);
1243 __team_compute_features(team);
1244 __team_port_change_port_added(port, !!netif_carrier_ok(port_dev));
1245 __team_options_change_check(team);
1247 netdev_info(dev, "Port device %s added\n", portname);
1251 err_option_port_add:
1252 team_upper_dev_unlink(team, port);
1255 netdev_rx_handler_unregister(port_dev);
1257 err_handler_register:
1258 team_port_disable_netpoll(port);
1261 vlan_vids_del_by_dev(port_dev, dev);
1264 dev_close(port_dev);
1267 team_port_leave(team, port);
1268 team_port_set_orig_dev_addr(port);
1271 dev_set_mtu(port_dev, port->orig.mtu);
1279 static void __team_port_change_port_removed(struct team_port *port);
1281 static int team_port_del(struct team *team, struct net_device *port_dev)
1283 struct net_device *dev = team->dev;
1284 struct team_port *port;
1285 char *portname = port_dev->name;
1287 port = team_port_get_rtnl(port_dev);
1288 if (!port || !team_port_find(team, port)) {
1289 netdev_err(dev, "Device %s does not act as a port of this team\n",
1294 team_port_disable(team, port);
1295 list_del_rcu(&port->list);
1296 team_upper_dev_unlink(team, port);
1297 netdev_rx_handler_unregister(port_dev);
1298 team_port_disable_netpoll(port);
1299 vlan_vids_del_by_dev(port_dev, dev);
1300 dev_uc_unsync(port_dev, dev);
1301 dev_mc_unsync(port_dev, dev);
1302 dev_close(port_dev);
1303 team_port_leave(team, port);
1305 __team_option_inst_mark_removed_port(team, port);
1306 __team_options_change_check(team);
1307 __team_option_inst_del_port(team, port);
1308 __team_port_change_port_removed(port);
1310 team_port_set_orig_dev_addr(port);
1311 dev_set_mtu(port_dev, port->orig.mtu);
1312 kfree_rcu(port, rcu);
1313 netdev_info(dev, "Port device %s removed\n", portname);
1314 __team_compute_features(team);
1324 static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx)
1326 ctx->data.str_val = team->mode->kind;
1330 static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx)
1332 return team_change_mode(team, ctx->data.str_val);
1335 static int team_notify_peers_count_get(struct team *team,
1336 struct team_gsetter_ctx *ctx)
1338 ctx->data.u32_val = team->notify_peers.count;
1342 static int team_notify_peers_count_set(struct team *team,
1343 struct team_gsetter_ctx *ctx)
1345 team->notify_peers.count = ctx->data.u32_val;
1349 static int team_notify_peers_interval_get(struct team *team,
1350 struct team_gsetter_ctx *ctx)
1352 ctx->data.u32_val = team->notify_peers.interval;
1356 static int team_notify_peers_interval_set(struct team *team,
1357 struct team_gsetter_ctx *ctx)
1359 team->notify_peers.interval = ctx->data.u32_val;
1363 static int team_mcast_rejoin_count_get(struct team *team,
1364 struct team_gsetter_ctx *ctx)
1366 ctx->data.u32_val = team->mcast_rejoin.count;
1370 static int team_mcast_rejoin_count_set(struct team *team,
1371 struct team_gsetter_ctx *ctx)
1373 team->mcast_rejoin.count = ctx->data.u32_val;
1377 static int team_mcast_rejoin_interval_get(struct team *team,
1378 struct team_gsetter_ctx *ctx)
1380 ctx->data.u32_val = team->mcast_rejoin.interval;
1384 static int team_mcast_rejoin_interval_set(struct team *team,
1385 struct team_gsetter_ctx *ctx)
1387 team->mcast_rejoin.interval = ctx->data.u32_val;
1391 static int team_port_en_option_get(struct team *team,
1392 struct team_gsetter_ctx *ctx)
1394 struct team_port *port = ctx->info->port;
1396 ctx->data.bool_val = team_port_enabled(port);
1400 static int team_port_en_option_set(struct team *team,
1401 struct team_gsetter_ctx *ctx)
1403 struct team_port *port = ctx->info->port;
1405 if (ctx->data.bool_val)
1406 team_port_enable(team, port);
1408 team_port_disable(team, port);
1412 static int team_user_linkup_option_get(struct team *team,
1413 struct team_gsetter_ctx *ctx)
1415 struct team_port *port = ctx->info->port;
1417 ctx->data.bool_val = port->user.linkup;
1421 static void __team_carrier_check(struct team *team);
1423 static int team_user_linkup_option_set(struct team *team,
1424 struct team_gsetter_ctx *ctx)
1426 struct team_port *port = ctx->info->port;
1428 port->user.linkup = ctx->data.bool_val;
1429 team_refresh_port_linkup(port);
1430 __team_carrier_check(port->team);
1434 static int team_user_linkup_en_option_get(struct team *team,
1435 struct team_gsetter_ctx *ctx)
1437 struct team_port *port = ctx->info->port;
1439 ctx->data.bool_val = port->user.linkup_enabled;
1443 static int team_user_linkup_en_option_set(struct team *team,
1444 struct team_gsetter_ctx *ctx)
1446 struct team_port *port = ctx->info->port;
1448 port->user.linkup_enabled = ctx->data.bool_val;
1449 team_refresh_port_linkup(port);
1450 __team_carrier_check(port->team);
1454 static int team_priority_option_get(struct team *team,
1455 struct team_gsetter_ctx *ctx)
1457 struct team_port *port = ctx->info->port;
1459 ctx->data.s32_val = port->priority;
1463 static int team_priority_option_set(struct team *team,
1464 struct team_gsetter_ctx *ctx)
1466 struct team_port *port = ctx->info->port;
1467 s32 priority = ctx->data.s32_val;
1469 if (port->priority == priority)
1471 port->priority = priority;
1472 team_queue_override_port_prio_changed(team, port);
1476 static int team_queue_id_option_get(struct team *team,
1477 struct team_gsetter_ctx *ctx)
1479 struct team_port *port = ctx->info->port;
1481 ctx->data.u32_val = port->queue_id;
1485 static int team_queue_id_option_set(struct team *team,
1486 struct team_gsetter_ctx *ctx)
1488 struct team_port *port = ctx->info->port;
1489 u16 new_queue_id = ctx->data.u32_val;
1491 if (port->queue_id == new_queue_id)
1493 if (new_queue_id >= team->dev->real_num_tx_queues)
1495 team_queue_override_port_change_queue_id(team, port, new_queue_id);
1499 static const struct team_option team_options[] = {
1502 .type = TEAM_OPTION_TYPE_STRING,
1503 .getter = team_mode_option_get,
1504 .setter = team_mode_option_set,
1507 .name = "notify_peers_count",
1508 .type = TEAM_OPTION_TYPE_U32,
1509 .getter = team_notify_peers_count_get,
1510 .setter = team_notify_peers_count_set,
1513 .name = "notify_peers_interval",
1514 .type = TEAM_OPTION_TYPE_U32,
1515 .getter = team_notify_peers_interval_get,
1516 .setter = team_notify_peers_interval_set,
1519 .name = "mcast_rejoin_count",
1520 .type = TEAM_OPTION_TYPE_U32,
1521 .getter = team_mcast_rejoin_count_get,
1522 .setter = team_mcast_rejoin_count_set,
1525 .name = "mcast_rejoin_interval",
1526 .type = TEAM_OPTION_TYPE_U32,
1527 .getter = team_mcast_rejoin_interval_get,
1528 .setter = team_mcast_rejoin_interval_set,
1532 .type = TEAM_OPTION_TYPE_BOOL,
1534 .getter = team_port_en_option_get,
1535 .setter = team_port_en_option_set,
1538 .name = "user_linkup",
1539 .type = TEAM_OPTION_TYPE_BOOL,
1541 .getter = team_user_linkup_option_get,
1542 .setter = team_user_linkup_option_set,
1545 .name = "user_linkup_enabled",
1546 .type = TEAM_OPTION_TYPE_BOOL,
1548 .getter = team_user_linkup_en_option_get,
1549 .setter = team_user_linkup_en_option_set,
1553 .type = TEAM_OPTION_TYPE_S32,
1555 .getter = team_priority_option_get,
1556 .setter = team_priority_option_set,
1560 .type = TEAM_OPTION_TYPE_U32,
1562 .getter = team_queue_id_option_get,
1563 .setter = team_queue_id_option_set,
1567 static struct lock_class_key team_netdev_xmit_lock_key;
1568 static struct lock_class_key team_netdev_addr_lock_key;
1569 static struct lock_class_key team_tx_busylock_key;
1571 static void team_set_lockdep_class_one(struct net_device *dev,
1572 struct netdev_queue *txq,
1575 lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key);
1578 static void team_set_lockdep_class(struct net_device *dev)
1580 lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key);
1581 netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL);
1582 dev->qdisc_tx_busylock = &team_tx_busylock_key;
1585 static int team_init(struct net_device *dev)
1587 struct team *team = netdev_priv(dev);
1592 mutex_init(&team->lock);
1593 team_set_no_mode(team);
1595 team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats);
1596 if (!team->pcpu_stats)
1599 for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
1600 INIT_HLIST_HEAD(&team->en_port_hlist[i]);
1601 INIT_LIST_HEAD(&team->port_list);
1602 err = team_queue_override_init(team);
1604 goto err_team_queue_override_init;
1606 team_adjust_ops(team);
1608 INIT_LIST_HEAD(&team->option_list);
1609 INIT_LIST_HEAD(&team->option_inst_list);
1611 team_notify_peers_init(team);
1612 team_mcast_rejoin_init(team);
1614 err = team_options_register(team, team_options, ARRAY_SIZE(team_options));
1616 goto err_options_register;
1617 netif_carrier_off(dev);
1619 team_set_lockdep_class(dev);
1623 err_options_register:
1624 team_mcast_rejoin_fini(team);
1625 team_notify_peers_fini(team);
1626 team_queue_override_fini(team);
1627 err_team_queue_override_init:
1628 free_percpu(team->pcpu_stats);
1633 static void team_uninit(struct net_device *dev)
1635 struct team *team = netdev_priv(dev);
1636 struct team_port *port;
1637 struct team_port *tmp;
1639 mutex_lock(&team->lock);
1640 list_for_each_entry_safe(port, tmp, &team->port_list, list)
1641 team_port_del(team, port->dev);
1643 __team_change_mode(team, NULL); /* cleanup */
1644 __team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
1645 team_mcast_rejoin_fini(team);
1646 team_notify_peers_fini(team);
1647 team_queue_override_fini(team);
1648 mutex_unlock(&team->lock);
1651 static void team_destructor(struct net_device *dev)
1653 struct team *team = netdev_priv(dev);
1655 free_percpu(team->pcpu_stats);
1659 static int team_open(struct net_device *dev)
1664 static int team_close(struct net_device *dev)
1670 * note: already called with rcu_read_lock
1672 static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
1674 struct team *team = netdev_priv(dev);
1676 unsigned int len = skb->len;
1678 tx_success = team_queue_override_transmit(team, skb);
1680 tx_success = team->ops.transmit(team, skb);
1682 struct team_pcpu_stats *pcpu_stats;
1684 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
1685 u64_stats_update_begin(&pcpu_stats->syncp);
1686 pcpu_stats->tx_packets++;
1687 pcpu_stats->tx_bytes += len;
1688 u64_stats_update_end(&pcpu_stats->syncp);
1690 this_cpu_inc(team->pcpu_stats->tx_dropped);
1693 return NETDEV_TX_OK;
1696 static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb,
1697 void *accel_priv, select_queue_fallback_t fallback)
1700 * This helper function exists to help dev_pick_tx get the correct
1701 * destination queue. Using a helper function skips a call to
1702 * skb_tx_hash and will put the skbs in the queue we expect on their
1703 * way down to the team driver.
1705 u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
1708 * Save the original txq to restore before passing to the driver
1710 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
1712 if (unlikely(txq >= dev->real_num_tx_queues)) {
1714 txq -= dev->real_num_tx_queues;
1715 } while (txq >= dev->real_num_tx_queues);
1720 static void team_change_rx_flags(struct net_device *dev, int change)
1722 struct team *team = netdev_priv(dev);
1723 struct team_port *port;
1727 list_for_each_entry_rcu(port, &team->port_list, list) {
1728 if (change & IFF_PROMISC) {
1729 inc = dev->flags & IFF_PROMISC ? 1 : -1;
1730 dev_set_promiscuity(port->dev, inc);
1732 if (change & IFF_ALLMULTI) {
1733 inc = dev->flags & IFF_ALLMULTI ? 1 : -1;
1734 dev_set_allmulti(port->dev, inc);
1740 static void team_set_rx_mode(struct net_device *dev)
1742 struct team *team = netdev_priv(dev);
1743 struct team_port *port;
1746 list_for_each_entry_rcu(port, &team->port_list, list) {
1747 dev_uc_sync_multiple(port->dev, dev);
1748 dev_mc_sync_multiple(port->dev, dev);
1753 static int team_set_mac_address(struct net_device *dev, void *p)
1755 struct sockaddr *addr = p;
1756 struct team *team = netdev_priv(dev);
1757 struct team_port *port;
1759 if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
1760 return -EADDRNOTAVAIL;
1761 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1762 mutex_lock(&team->lock);
1763 list_for_each_entry(port, &team->port_list, list)
1764 if (team->ops.port_change_dev_addr)
1765 team->ops.port_change_dev_addr(team, port);
1766 mutex_unlock(&team->lock);
1770 static int team_change_mtu(struct net_device *dev, int new_mtu)
1772 struct team *team = netdev_priv(dev);
1773 struct team_port *port;
1777 * Alhough this is reader, it's guarded by team lock. It's not possible
1778 * to traverse list in reverse under rcu_read_lock
1780 mutex_lock(&team->lock);
1781 team->port_mtu_change_allowed = true;
1782 list_for_each_entry(port, &team->port_list, list) {
1783 err = dev_set_mtu(port->dev, new_mtu);
1785 netdev_err(dev, "Device %s failed to change mtu",
1790 team->port_mtu_change_allowed = false;
1791 mutex_unlock(&team->lock);
1798 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1799 dev_set_mtu(port->dev, dev->mtu);
1800 team->port_mtu_change_allowed = false;
1801 mutex_unlock(&team->lock);
1806 static struct rtnl_link_stats64 *
1807 team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1809 struct team *team = netdev_priv(dev);
1810 struct team_pcpu_stats *p;
1811 u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes;
1812 u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0;
1816 for_each_possible_cpu(i) {
1817 p = per_cpu_ptr(team->pcpu_stats, i);
1819 start = u64_stats_fetch_begin_irq(&p->syncp);
1820 rx_packets = p->rx_packets;
1821 rx_bytes = p->rx_bytes;
1822 rx_multicast = p->rx_multicast;
1823 tx_packets = p->tx_packets;
1824 tx_bytes = p->tx_bytes;
1825 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
1827 stats->rx_packets += rx_packets;
1828 stats->rx_bytes += rx_bytes;
1829 stats->multicast += rx_multicast;
1830 stats->tx_packets += tx_packets;
1831 stats->tx_bytes += tx_bytes;
1833 * rx_dropped, tx_dropped & rx_nohandler are u32,
1834 * updated without syncp protection.
1836 rx_dropped += p->rx_dropped;
1837 tx_dropped += p->tx_dropped;
1838 rx_nohandler += p->rx_nohandler;
1840 stats->rx_dropped = rx_dropped;
1841 stats->tx_dropped = tx_dropped;
1842 stats->rx_nohandler = rx_nohandler;
1846 static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
1848 struct team *team = netdev_priv(dev);
1849 struct team_port *port;
1853 * Alhough this is reader, it's guarded by team lock. It's not possible
1854 * to traverse list in reverse under rcu_read_lock
1856 mutex_lock(&team->lock);
1857 list_for_each_entry(port, &team->port_list, list) {
1858 err = vlan_vid_add(port->dev, proto, vid);
1862 mutex_unlock(&team->lock);
1867 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1868 vlan_vid_del(port->dev, proto, vid);
1869 mutex_unlock(&team->lock);
1874 static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
1876 struct team *team = netdev_priv(dev);
1877 struct team_port *port;
1879 mutex_lock(&team->lock);
1880 list_for_each_entry(port, &team->port_list, list)
1881 vlan_vid_del(port->dev, proto, vid);
1882 mutex_unlock(&team->lock);
1887 #ifdef CONFIG_NET_POLL_CONTROLLER
1888 static void team_poll_controller(struct net_device *dev)
1892 static void __team_netpoll_cleanup(struct team *team)
1894 struct team_port *port;
1896 list_for_each_entry(port, &team->port_list, list)
1897 team_port_disable_netpoll(port);
1900 static void team_netpoll_cleanup(struct net_device *dev)
1902 struct team *team = netdev_priv(dev);
1904 mutex_lock(&team->lock);
1905 __team_netpoll_cleanup(team);
1906 mutex_unlock(&team->lock);
1909 static int team_netpoll_setup(struct net_device *dev,
1910 struct netpoll_info *npifo)
1912 struct team *team = netdev_priv(dev);
1913 struct team_port *port;
1916 mutex_lock(&team->lock);
1917 list_for_each_entry(port, &team->port_list, list) {
1918 err = team_port_enable_netpoll(team, port);
1920 __team_netpoll_cleanup(team);
1924 mutex_unlock(&team->lock);
1929 static int team_add_slave(struct net_device *dev, struct net_device *port_dev)
1931 struct team *team = netdev_priv(dev);
1934 mutex_lock(&team->lock);
1935 err = team_port_add(team, port_dev);
1936 mutex_unlock(&team->lock);
1940 static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
1942 struct team *team = netdev_priv(dev);
1945 mutex_lock(&team->lock);
1946 err = team_port_del(team, port_dev);
1947 mutex_unlock(&team->lock);
1951 static netdev_features_t team_fix_features(struct net_device *dev,
1952 netdev_features_t features)
1954 struct team_port *port;
1955 struct team *team = netdev_priv(dev);
1956 netdev_features_t mask;
1959 features &= ~NETIF_F_ONE_FOR_ALL;
1960 features |= NETIF_F_ALL_FOR_ALL;
1963 list_for_each_entry_rcu(port, &team->port_list, list) {
1964 features = netdev_increment_features(features,
1965 port->dev->features,
1970 features = netdev_add_tso_features(features, mask);
1975 static int team_change_carrier(struct net_device *dev, bool new_carrier)
1977 struct team *team = netdev_priv(dev);
1979 team->user_carrier_enabled = true;
1982 netif_carrier_on(dev);
1984 netif_carrier_off(dev);
1988 static const struct net_device_ops team_netdev_ops = {
1989 .ndo_init = team_init,
1990 .ndo_uninit = team_uninit,
1991 .ndo_open = team_open,
1992 .ndo_stop = team_close,
1993 .ndo_start_xmit = team_xmit,
1994 .ndo_select_queue = team_select_queue,
1995 .ndo_change_rx_flags = team_change_rx_flags,
1996 .ndo_set_rx_mode = team_set_rx_mode,
1997 .ndo_set_mac_address = team_set_mac_address,
1998 .ndo_change_mtu = team_change_mtu,
1999 .ndo_get_stats64 = team_get_stats64,
2000 .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid,
2001 .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid,
2002 #ifdef CONFIG_NET_POLL_CONTROLLER
2003 .ndo_poll_controller = team_poll_controller,
2004 .ndo_netpoll_setup = team_netpoll_setup,
2005 .ndo_netpoll_cleanup = team_netpoll_cleanup,
2007 .ndo_add_slave = team_add_slave,
2008 .ndo_del_slave = team_del_slave,
2009 .ndo_fix_features = team_fix_features,
2010 .ndo_change_carrier = team_change_carrier,
2011 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
2012 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
2013 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
2014 .ndo_fdb_add = switchdev_port_fdb_add,
2015 .ndo_fdb_del = switchdev_port_fdb_del,
2016 .ndo_fdb_dump = switchdev_port_fdb_dump,
2017 .ndo_features_check = passthru_features_check,
2020 /***********************
2022 ***********************/
2024 static void team_ethtool_get_drvinfo(struct net_device *dev,
2025 struct ethtool_drvinfo *drvinfo)
2027 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
2028 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
2031 static const struct ethtool_ops team_ethtool_ops = {
2032 .get_drvinfo = team_ethtool_get_drvinfo,
2033 .get_link = ethtool_op_get_link,
2036 /***********************
2037 * rt netlink interface
2038 ***********************/
2040 static void team_setup_by_port(struct net_device *dev,
2041 struct net_device *port_dev)
2043 dev->header_ops = port_dev->header_ops;
2044 dev->type = port_dev->type;
2045 dev->hard_header_len = port_dev->hard_header_len;
2046 dev->addr_len = port_dev->addr_len;
2047 dev->mtu = port_dev->mtu;
2048 memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
2049 eth_hw_addr_inherit(dev, port_dev);
2052 static int team_dev_type_check_change(struct net_device *dev,
2053 struct net_device *port_dev)
2055 struct team *team = netdev_priv(dev);
2056 char *portname = port_dev->name;
2059 if (dev->type == port_dev->type)
2061 if (!list_empty(&team->port_list)) {
2062 netdev_err(dev, "Device %s is of different type\n", portname);
2065 err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
2066 err = notifier_to_errno(err);
2068 netdev_err(dev, "Refused to change device type\n");
2073 team_setup_by_port(dev, port_dev);
2074 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
2078 static void team_setup(struct net_device *dev)
2082 dev->netdev_ops = &team_netdev_ops;
2083 dev->ethtool_ops = &team_ethtool_ops;
2084 dev->destructor = team_destructor;
2085 dev->flags |= IFF_MULTICAST;
2086 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
2087 dev->priv_flags |= IFF_NO_QUEUE;
2088 dev->priv_flags |= IFF_TEAM;
2091 * Indicate we support unicast address filtering. That way core won't
2092 * bring us to promisc mode in case a unicast addr is added.
2093 * Let this up to underlay drivers.
2095 dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
2097 dev->features |= NETIF_F_LLTX;
2098 dev->features |= NETIF_F_GRO;
2100 /* Don't allow team devices to change network namespaces. */
2101 dev->features |= NETIF_F_NETNS_LOCAL;
2103 dev->hw_features = TEAM_VLAN_FEATURES |
2104 NETIF_F_HW_VLAN_CTAG_TX |
2105 NETIF_F_HW_VLAN_CTAG_RX |
2106 NETIF_F_HW_VLAN_CTAG_FILTER;
2108 dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
2109 dev->features |= dev->hw_features;
2112 static int team_newlink(struct net *src_net, struct net_device *dev,
2113 struct nlattr *tb[], struct nlattr *data[])
2115 if (tb[IFLA_ADDRESS] == NULL)
2116 eth_hw_addr_random(dev);
2118 return register_netdevice(dev);
2121 static int team_validate(struct nlattr *tb[], struct nlattr *data[])
2123 if (tb[IFLA_ADDRESS]) {
2124 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
2126 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
2127 return -EADDRNOTAVAIL;
2132 static unsigned int team_get_num_tx_queues(void)
2134 return TEAM_DEFAULT_NUM_TX_QUEUES;
2137 static unsigned int team_get_num_rx_queues(void)
2139 return TEAM_DEFAULT_NUM_RX_QUEUES;
2142 static struct rtnl_link_ops team_link_ops __read_mostly = {
2144 .priv_size = sizeof(struct team),
2145 .setup = team_setup,
2146 .newlink = team_newlink,
2147 .validate = team_validate,
2148 .get_num_tx_queues = team_get_num_tx_queues,
2149 .get_num_rx_queues = team_get_num_rx_queues,
2153 /***********************************
2154 * Generic netlink custom interface
2155 ***********************************/
2157 static struct genl_family team_nl_family = {
2158 .id = GENL_ID_GENERATE,
2159 .name = TEAM_GENL_NAME,
2160 .version = TEAM_GENL_VERSION,
2161 .maxattr = TEAM_ATTR_MAX,
2165 static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = {
2166 [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, },
2167 [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 },
2168 [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED },
2169 [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED },
2172 static const struct nla_policy
2173 team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = {
2174 [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, },
2175 [TEAM_ATTR_OPTION_NAME] = {
2177 .len = TEAM_STRING_MAX_LEN,
2179 [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG },
2180 [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 },
2181 [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY },
2184 static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
2186 struct sk_buff *msg;
2190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2194 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
2195 &team_nl_family, 0, TEAM_CMD_NOOP);
2201 genlmsg_end(msg, hdr);
2203 return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
2212 * Netlink cmd functions should be locked by following two functions.
2213 * Since dev gets held here, that ensures dev won't disappear in between.
2215 static struct team *team_nl_team_get(struct genl_info *info)
2217 struct net *net = genl_info_net(info);
2219 struct net_device *dev;
2222 if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX])
2225 ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]);
2226 dev = dev_get_by_index(net, ifindex);
2227 if (!dev || dev->netdev_ops != &team_netdev_ops) {
2233 team = netdev_priv(dev);
2234 mutex_lock(&team->lock);
2238 static void team_nl_team_put(struct team *team)
2240 mutex_unlock(&team->lock);
2244 typedef int team_nl_send_func_t(struct sk_buff *skb,
2245 struct team *team, u32 portid);
2247 static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
2249 return genlmsg_unicast(dev_net(team->dev), skb, portid);
2252 static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
2253 struct team_option_inst *opt_inst)
2255 struct nlattr *option_item;
2256 struct team_option *option = opt_inst->option;
2257 struct team_option_inst_info *opt_inst_info = &opt_inst->info;
2258 struct team_gsetter_ctx ctx;
2261 ctx.info = opt_inst_info;
2262 err = team_option_get(team, opt_inst, &ctx);
2266 option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION);
2270 if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name))
2272 if (opt_inst_info->port &&
2273 nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX,
2274 opt_inst_info->port->dev->ifindex))
2276 if (opt_inst->option->array_size &&
2277 nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX,
2278 opt_inst_info->array_index))
2281 switch (option->type) {
2282 case TEAM_OPTION_TYPE_U32:
2283 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32))
2285 if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val))
2288 case TEAM_OPTION_TYPE_STRING:
2289 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING))
2291 if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA,
2295 case TEAM_OPTION_TYPE_BINARY:
2296 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY))
2298 if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len,
2299 ctx.data.bin_val.ptr))
2302 case TEAM_OPTION_TYPE_BOOL:
2303 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG))
2305 if (ctx.data.bool_val &&
2306 nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
2309 case TEAM_OPTION_TYPE_S32:
2310 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
2312 if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
2318 if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED))
2320 if (opt_inst->changed) {
2321 if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED))
2323 opt_inst->changed = false;
2325 nla_nest_end(skb, option_item);
2329 nla_nest_cancel(skb, option_item);
2333 static int __send_and_alloc_skb(struct sk_buff **pskb,
2334 struct team *team, u32 portid,
2335 team_nl_send_func_t *send_func)
2340 err = send_func(*pskb, team, portid);
2344 *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2350 static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
2351 int flags, team_nl_send_func_t *send_func,
2352 struct list_head *sel_opt_inst_list)
2354 struct nlattr *option_list;
2355 struct nlmsghdr *nlh;
2357 struct team_option_inst *opt_inst;
2359 struct sk_buff *skb = NULL;
2363 opt_inst = list_first_entry(sel_opt_inst_list,
2364 struct team_option_inst, tmp_list);
2367 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2371 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2372 TEAM_CMD_OPTIONS_GET);
2376 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2377 goto nla_put_failure;
2378 option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION);
2380 goto nla_put_failure;
2384 list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) {
2385 err = team_nl_fill_one_option_get(skb, team, opt_inst);
2387 if (err == -EMSGSIZE) {
2398 nla_nest_end(skb, option_list);
2399 genlmsg_end(skb, hdr);
2404 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2406 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2412 return send_func(skb, team, portid);
2417 genlmsg_cancel(skb, hdr);
2422 static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info)
2425 struct team_option_inst *opt_inst;
2427 LIST_HEAD(sel_opt_inst_list);
2429 team = team_nl_team_get(info);
2433 list_for_each_entry(opt_inst, &team->option_inst_list, list)
2434 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2435 err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq,
2436 NLM_F_ACK, team_nl_send_unicast,
2437 &sel_opt_inst_list);
2439 team_nl_team_put(team);
2444 static int team_nl_send_event_options_get(struct team *team,
2445 struct list_head *sel_opt_inst_list);
2447 static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
2452 struct nlattr *nl_option;
2453 LIST_HEAD(opt_inst_list);
2457 team = team_nl_team_get(info);
2464 if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
2469 nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) {
2470 struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1];
2471 struct nlattr *attr;
2472 struct nlattr *attr_data;
2473 enum team_option_type opt_type;
2474 int opt_port_ifindex = 0; /* != 0 for per-port options */
2475 u32 opt_array_index = 0;
2476 bool opt_is_array = false;
2477 struct team_option_inst *opt_inst;
2479 bool opt_found = false;
2481 if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) {
2485 err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX,
2486 nl_option, team_nl_option_policy);
2489 if (!opt_attrs[TEAM_ATTR_OPTION_NAME] ||
2490 !opt_attrs[TEAM_ATTR_OPTION_TYPE]) {
2494 switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) {
2496 opt_type = TEAM_OPTION_TYPE_U32;
2499 opt_type = TEAM_OPTION_TYPE_STRING;
2502 opt_type = TEAM_OPTION_TYPE_BINARY;
2505 opt_type = TEAM_OPTION_TYPE_BOOL;
2508 opt_type = TEAM_OPTION_TYPE_S32;
2514 attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA];
2515 if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) {
2520 opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]);
2521 attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX];
2523 opt_port_ifindex = nla_get_u32(attr);
2525 attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX];
2527 opt_is_array = true;
2528 opt_array_index = nla_get_u32(attr);
2531 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2532 struct team_option *option = opt_inst->option;
2533 struct team_gsetter_ctx ctx;
2534 struct team_option_inst_info *opt_inst_info;
2537 opt_inst_info = &opt_inst->info;
2538 tmp_ifindex = opt_inst_info->port ?
2539 opt_inst_info->port->dev->ifindex : 0;
2540 if (option->type != opt_type ||
2541 strcmp(option->name, opt_name) ||
2542 tmp_ifindex != opt_port_ifindex ||
2543 (option->array_size && !opt_is_array) ||
2544 opt_inst_info->array_index != opt_array_index)
2547 ctx.info = opt_inst_info;
2549 case TEAM_OPTION_TYPE_U32:
2550 ctx.data.u32_val = nla_get_u32(attr_data);
2552 case TEAM_OPTION_TYPE_STRING:
2553 if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
2557 ctx.data.str_val = nla_data(attr_data);
2559 case TEAM_OPTION_TYPE_BINARY:
2560 ctx.data.bin_val.len = nla_len(attr_data);
2561 ctx.data.bin_val.ptr = nla_data(attr_data);
2563 case TEAM_OPTION_TYPE_BOOL:
2564 ctx.data.bool_val = attr_data ? true : false;
2566 case TEAM_OPTION_TYPE_S32:
2567 ctx.data.s32_val = nla_get_s32(attr_data);
2572 err = team_option_set(team, opt_inst, &ctx);
2575 opt_inst->changed = true;
2576 list_add(&opt_inst->tmp_list, &opt_inst_list);
2584 err = team_nl_send_event_options_get(team, &opt_inst_list);
2587 team_nl_team_put(team);
2593 static int team_nl_fill_one_port_get(struct sk_buff *skb,
2594 struct team_port *port)
2596 struct nlattr *port_item;
2598 port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT);
2601 if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex))
2603 if (port->changed) {
2604 if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED))
2606 port->changed = false;
2608 if ((port->removed &&
2609 nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) ||
2610 (port->state.linkup &&
2611 nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) ||
2612 nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) ||
2613 nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex))
2615 nla_nest_end(skb, port_item);
2619 nla_nest_cancel(skb, port_item);
2623 static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,
2624 int flags, team_nl_send_func_t *send_func,
2625 struct team_port *one_port)
2627 struct nlattr *port_list;
2628 struct nlmsghdr *nlh;
2630 struct team_port *port;
2632 struct sk_buff *skb = NULL;
2636 port = list_first_entry_or_null(&team->port_list,
2637 struct team_port, list);
2640 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2644 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2645 TEAM_CMD_PORT_LIST_GET);
2649 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2650 goto nla_put_failure;
2651 port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT);
2653 goto nla_put_failure;
2658 /* If one port is selected, called wants to send port list containing
2659 * only this port. Otherwise go through all listed ports and send all
2662 err = team_nl_fill_one_port_get(skb, one_port);
2666 list_for_each_entry_from(port, &team->port_list, list) {
2667 err = team_nl_fill_one_port_get(skb, port);
2669 if (err == -EMSGSIZE) {
2681 nla_nest_end(skb, port_list);
2682 genlmsg_end(skb, hdr);
2687 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2689 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2695 return send_func(skb, team, portid);
2700 genlmsg_cancel(skb, hdr);
2705 static int team_nl_cmd_port_list_get(struct sk_buff *skb,
2706 struct genl_info *info)
2711 team = team_nl_team_get(info);
2715 err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq,
2716 NLM_F_ACK, team_nl_send_unicast, NULL);
2718 team_nl_team_put(team);
2723 static const struct genl_ops team_nl_ops[] = {
2725 .cmd = TEAM_CMD_NOOP,
2726 .doit = team_nl_cmd_noop,
2727 .policy = team_nl_policy,
2730 .cmd = TEAM_CMD_OPTIONS_SET,
2731 .doit = team_nl_cmd_options_set,
2732 .policy = team_nl_policy,
2733 .flags = GENL_ADMIN_PERM,
2736 .cmd = TEAM_CMD_OPTIONS_GET,
2737 .doit = team_nl_cmd_options_get,
2738 .policy = team_nl_policy,
2739 .flags = GENL_ADMIN_PERM,
2742 .cmd = TEAM_CMD_PORT_LIST_GET,
2743 .doit = team_nl_cmd_port_list_get,
2744 .policy = team_nl_policy,
2745 .flags = GENL_ADMIN_PERM,
2749 static const struct genl_multicast_group team_nl_mcgrps[] = {
2750 { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
2753 static int team_nl_send_multicast(struct sk_buff *skb,
2754 struct team *team, u32 portid)
2756 return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
2757 skb, 0, 0, GFP_KERNEL);
2760 static int team_nl_send_event_options_get(struct team *team,
2761 struct list_head *sel_opt_inst_list)
2763 return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast,
2767 static int team_nl_send_event_port_get(struct team *team,
2768 struct team_port *port)
2770 return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast,
2774 static int team_nl_init(void)
2776 return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops,
2780 static void team_nl_fini(void)
2782 genl_unregister_family(&team_nl_family);
2790 static void __team_options_change_check(struct team *team)
2793 struct team_option_inst *opt_inst;
2794 LIST_HEAD(sel_opt_inst_list);
2796 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2797 if (opt_inst->changed)
2798 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2800 err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
2801 if (err && err != -ESRCH)
2802 netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
2806 /* rtnl lock is held */
2808 static void __team_port_change_send(struct team_port *port, bool linkup)
2812 port->changed = true;
2813 port->state.linkup = linkup;
2814 team_refresh_port_linkup(port);
2816 struct ethtool_cmd ecmd;
2818 err = __ethtool_get_settings(port->dev, &ecmd);
2820 port->state.speed = ethtool_cmd_speed(&ecmd);
2821 port->state.duplex = ecmd.duplex;
2825 port->state.speed = 0;
2826 port->state.duplex = 0;
2829 err = team_nl_send_event_port_get(port->team, port);
2830 if (err && err != -ESRCH)
2831 netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
2832 port->dev->name, err);
2836 static void __team_carrier_check(struct team *team)
2838 struct team_port *port;
2841 if (team->user_carrier_enabled)
2844 team_linkup = false;
2845 list_for_each_entry(port, &team->port_list, list) {
2853 netif_carrier_on(team->dev);
2855 netif_carrier_off(team->dev);
2858 static void __team_port_change_check(struct team_port *port, bool linkup)
2860 if (port->state.linkup != linkup)
2861 __team_port_change_send(port, linkup);
2862 __team_carrier_check(port->team);
2865 static void __team_port_change_port_added(struct team_port *port, bool linkup)
2867 __team_port_change_send(port, linkup);
2868 __team_carrier_check(port->team);
2871 static void __team_port_change_port_removed(struct team_port *port)
2873 port->removed = true;
2874 __team_port_change_send(port, false);
2875 __team_carrier_check(port->team);
2878 static void team_port_change_check(struct team_port *port, bool linkup)
2880 struct team *team = port->team;
2882 mutex_lock(&team->lock);
2883 __team_port_change_check(port, linkup);
2884 mutex_unlock(&team->lock);
2888 /************************************
2889 * Net device notifier event handler
2890 ************************************/
2892 static int team_device_event(struct notifier_block *unused,
2893 unsigned long event, void *ptr)
2895 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2896 struct team_port *port;
2898 port = team_port_get_rtnl(dev);
2904 if (netif_carrier_ok(dev))
2905 team_port_change_check(port, true);
2908 team_port_change_check(port, false);
2911 if (netif_running(port->dev))
2912 team_port_change_check(port,
2913 !!netif_carrier_ok(port->dev));
2915 case NETDEV_UNREGISTER:
2916 team_del_slave(port->team->dev, dev);
2918 case NETDEV_FEAT_CHANGE:
2919 team_compute_features(port->team);
2921 case NETDEV_PRECHANGEMTU:
2922 /* Forbid to change mtu of underlaying device */
2923 if (!port->team->port_mtu_change_allowed)
2926 case NETDEV_PRE_TYPE_CHANGE:
2927 /* Forbid to change type of underlaying device */
2929 case NETDEV_RESEND_IGMP:
2930 /* Propagate to master device */
2931 call_netdevice_notifiers(event, port->team->dev);
2937 static struct notifier_block team_notifier_block __read_mostly = {
2938 .notifier_call = team_device_event,
2942 /***********************
2943 * Module init and exit
2944 ***********************/
2946 static int __init team_module_init(void)
2950 register_netdevice_notifier(&team_notifier_block);
2952 err = rtnl_link_register(&team_link_ops);
2956 err = team_nl_init();
2963 rtnl_link_unregister(&team_link_ops);
2966 unregister_netdevice_notifier(&team_notifier_block);
2971 static void __exit team_module_exit(void)
2974 rtnl_link_unregister(&team_link_ops);
2975 unregister_netdevice_notifier(&team_notifier_block);
2978 module_init(team_module_init);
2979 module_exit(team_module_exit);
2981 MODULE_LICENSE("GPL v2");
2982 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2983 MODULE_DESCRIPTION("Ethernet team device driver");
2984 MODULE_ALIAS_RTNL_LINK(DRV_NAME);