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 <generated/utsrelease.h>
32 #include <linux/if_team.h>
34 #define DRV_NAME "team"
41 #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT)
43 static struct team_port *team_port_get_rtnl(const struct net_device *dev)
45 struct team_port *port = rtnl_dereference(dev->rx_handler_data);
47 return team_port_exists(dev) ? port : NULL;
51 * Since the ability to change device address for open port device is tested in
52 * team_port_add, this function can be called without control of return value
54 static int __set_port_dev_addr(struct net_device *port_dev,
55 const unsigned char *dev_addr)
57 struct sockaddr_storage addr;
59 memcpy(addr.__data, dev_addr, port_dev->addr_len);
60 addr.ss_family = port_dev->type;
61 return dev_set_mac_address(port_dev, (struct sockaddr *)&addr, NULL);
64 static int team_port_set_orig_dev_addr(struct team_port *port)
66 return __set_port_dev_addr(port->dev, port->orig.dev_addr);
69 static int team_port_set_team_dev_addr(struct team *team,
70 struct team_port *port)
72 return __set_port_dev_addr(port->dev, team->dev->dev_addr);
75 int team_modeop_port_enter(struct team *team, struct team_port *port)
77 return team_port_set_team_dev_addr(team, port);
79 EXPORT_SYMBOL(team_modeop_port_enter);
81 void team_modeop_port_change_dev_addr(struct team *team,
82 struct team_port *port)
84 team_port_set_team_dev_addr(team, port);
86 EXPORT_SYMBOL(team_modeop_port_change_dev_addr);
88 static void team_lower_state_changed(struct team_port *port)
90 struct netdev_lag_lower_state_info info;
92 info.link_up = port->linkup;
93 info.tx_enabled = team_port_enabled(port);
94 netdev_lower_state_changed(port->dev, &info);
97 static void team_refresh_port_linkup(struct team_port *port)
99 bool new_linkup = port->user.linkup_enabled ? port->user.linkup :
102 if (port->linkup != new_linkup) {
103 port->linkup = new_linkup;
104 team_lower_state_changed(port);
113 struct team_option_inst { /* One for each option instance */
114 struct list_head list;
115 struct list_head tmp_list;
116 struct team_option *option;
117 struct team_option_inst_info info;
122 static struct team_option *__team_find_option(struct team *team,
123 const char *opt_name)
125 struct team_option *option;
127 list_for_each_entry(option, &team->option_list, list) {
128 if (strcmp(option->name, opt_name) == 0)
134 static void __team_option_inst_del(struct team_option_inst *opt_inst)
136 list_del(&opt_inst->list);
140 static void __team_option_inst_del_option(struct team *team,
141 struct team_option *option)
143 struct team_option_inst *opt_inst, *tmp;
145 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
146 if (opt_inst->option == option)
147 __team_option_inst_del(opt_inst);
151 static int __team_option_inst_add(struct team *team, struct team_option *option,
152 struct team_port *port)
154 struct team_option_inst *opt_inst;
155 unsigned int array_size;
159 array_size = option->array_size;
161 array_size = 1; /* No array but still need one instance */
163 for (i = 0; i < array_size; i++) {
164 opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL);
167 opt_inst->option = option;
168 opt_inst->info.port = port;
169 opt_inst->info.array_index = i;
170 opt_inst->changed = true;
171 opt_inst->removed = false;
172 list_add_tail(&opt_inst->list, &team->option_inst_list);
174 err = option->init(team, &opt_inst->info);
183 static int __team_option_inst_add_option(struct team *team,
184 struct team_option *option)
188 if (!option->per_port) {
189 err = __team_option_inst_add(team, option, NULL);
191 goto inst_del_option;
196 __team_option_inst_del_option(team, option);
200 static void __team_option_inst_mark_removed_option(struct team *team,
201 struct team_option *option)
203 struct team_option_inst *opt_inst;
205 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
206 if (opt_inst->option == option) {
207 opt_inst->changed = true;
208 opt_inst->removed = true;
213 static void __team_option_inst_del_port(struct team *team,
214 struct team_port *port)
216 struct team_option_inst *opt_inst, *tmp;
218 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
219 if (opt_inst->option->per_port &&
220 opt_inst->info.port == port)
221 __team_option_inst_del(opt_inst);
225 static int __team_option_inst_add_port(struct team *team,
226 struct team_port *port)
228 struct team_option *option;
231 list_for_each_entry(option, &team->option_list, list) {
232 if (!option->per_port)
234 err = __team_option_inst_add(team, option, port);
241 __team_option_inst_del_port(team, port);
245 static void __team_option_inst_mark_removed_port(struct team *team,
246 struct team_port *port)
248 struct team_option_inst *opt_inst;
250 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
251 if (opt_inst->info.port == port) {
252 opt_inst->changed = true;
253 opt_inst->removed = true;
258 static int __team_options_register(struct team *team,
259 const struct team_option *option,
263 struct team_option **dst_opts;
266 dst_opts = kcalloc(option_count, sizeof(struct team_option *),
270 for (i = 0; i < option_count; i++, option++) {
271 if (__team_find_option(team, option->name)) {
275 dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL);
282 for (i = 0; i < option_count; i++) {
283 err = __team_option_inst_add_option(team, dst_opts[i]);
286 list_add_tail(&dst_opts[i]->list, &team->option_list);
293 for (i--; i >= 0; i--)
294 __team_option_inst_del_option(team, dst_opts[i]);
296 i = option_count - 1;
298 for (i--; i >= 0; i--)
305 static void __team_options_mark_removed(struct team *team,
306 const struct team_option *option,
311 for (i = 0; i < option_count; i++, option++) {
312 struct team_option *del_opt;
314 del_opt = __team_find_option(team, option->name);
316 __team_option_inst_mark_removed_option(team, del_opt);
320 static void __team_options_unregister(struct team *team,
321 const struct team_option *option,
326 for (i = 0; i < option_count; i++, option++) {
327 struct team_option *del_opt;
329 del_opt = __team_find_option(team, option->name);
331 __team_option_inst_del_option(team, del_opt);
332 list_del(&del_opt->list);
338 static void __team_options_change_check(struct team *team);
340 int team_options_register(struct team *team,
341 const struct team_option *option,
346 err = __team_options_register(team, option, option_count);
349 __team_options_change_check(team);
352 EXPORT_SYMBOL(team_options_register);
354 void team_options_unregister(struct team *team,
355 const struct team_option *option,
358 __team_options_mark_removed(team, option, option_count);
359 __team_options_change_check(team);
360 __team_options_unregister(team, option, option_count);
362 EXPORT_SYMBOL(team_options_unregister);
364 static int team_option_get(struct team *team,
365 struct team_option_inst *opt_inst,
366 struct team_gsetter_ctx *ctx)
368 if (!opt_inst->option->getter)
370 return opt_inst->option->getter(team, ctx);
373 static int team_option_set(struct team *team,
374 struct team_option_inst *opt_inst,
375 struct team_gsetter_ctx *ctx)
377 if (!opt_inst->option->setter)
379 return opt_inst->option->setter(team, ctx);
382 void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info)
384 struct team_option_inst *opt_inst;
386 opt_inst = container_of(opt_inst_info, struct team_option_inst, info);
387 opt_inst->changed = true;
389 EXPORT_SYMBOL(team_option_inst_set_change);
391 void team_options_change_check(struct team *team)
393 __team_options_change_check(team);
395 EXPORT_SYMBOL(team_options_change_check);
402 static LIST_HEAD(mode_list);
403 static DEFINE_SPINLOCK(mode_list_lock);
405 struct team_mode_item {
406 struct list_head list;
407 const struct team_mode *mode;
410 static struct team_mode_item *__find_mode(const char *kind)
412 struct team_mode_item *mitem;
414 list_for_each_entry(mitem, &mode_list, list) {
415 if (strcmp(mitem->mode->kind, kind) == 0)
421 static bool is_good_mode_name(const char *name)
423 while (*name != '\0') {
424 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
431 int team_mode_register(const struct team_mode *mode)
434 struct team_mode_item *mitem;
436 if (!is_good_mode_name(mode->kind) ||
437 mode->priv_size > TEAM_MODE_PRIV_SIZE)
440 mitem = kmalloc(sizeof(*mitem), GFP_KERNEL);
444 spin_lock(&mode_list_lock);
445 if (__find_mode(mode->kind)) {
451 list_add_tail(&mitem->list, &mode_list);
453 spin_unlock(&mode_list_lock);
456 EXPORT_SYMBOL(team_mode_register);
458 void team_mode_unregister(const struct team_mode *mode)
460 struct team_mode_item *mitem;
462 spin_lock(&mode_list_lock);
463 mitem = __find_mode(mode->kind);
465 list_del_init(&mitem->list);
468 spin_unlock(&mode_list_lock);
470 EXPORT_SYMBOL(team_mode_unregister);
472 static const struct team_mode *team_mode_get(const char *kind)
474 struct team_mode_item *mitem;
475 const struct team_mode *mode = NULL;
477 spin_lock(&mode_list_lock);
478 mitem = __find_mode(kind);
480 spin_unlock(&mode_list_lock);
481 request_module("team-mode-%s", kind);
482 spin_lock(&mode_list_lock);
483 mitem = __find_mode(kind);
487 if (!try_module_get(mode->owner))
491 spin_unlock(&mode_list_lock);
495 static void team_mode_put(const struct team_mode *mode)
497 module_put(mode->owner);
500 static bool team_dummy_transmit(struct team *team, struct sk_buff *skb)
502 dev_kfree_skb_any(skb);
506 static rx_handler_result_t team_dummy_receive(struct team *team,
507 struct team_port *port,
510 return RX_HANDLER_ANOTHER;
513 static const struct team_mode __team_no_mode = {
517 static bool team_is_mode_set(struct team *team)
519 return team->mode != &__team_no_mode;
522 static void team_set_no_mode(struct team *team)
524 team->user_carrier_enabled = false;
525 team->mode = &__team_no_mode;
528 static void team_adjust_ops(struct team *team)
531 * To avoid checks in rx/tx skb paths, ensure here that non-null and
532 * correct ops are always set.
535 if (!team->en_port_count || !team_is_mode_set(team) ||
536 !team->mode->ops->transmit)
537 team->ops.transmit = team_dummy_transmit;
539 team->ops.transmit = team->mode->ops->transmit;
541 if (!team->en_port_count || !team_is_mode_set(team) ||
542 !team->mode->ops->receive)
543 team->ops.receive = team_dummy_receive;
545 team->ops.receive = team->mode->ops->receive;
549 * We can benefit from the fact that it's ensured no port is present
550 * at the time of mode change. Therefore no packets are in fly so there's no
551 * need to set mode operations in any special way.
553 static int __team_change_mode(struct team *team,
554 const struct team_mode *new_mode)
556 /* Check if mode was previously set and do cleanup if so */
557 if (team_is_mode_set(team)) {
558 void (*exit_op)(struct team *team) = team->ops.exit;
560 /* Clear ops area so no callback is called any longer */
561 memset(&team->ops, 0, sizeof(struct team_mode_ops));
562 team_adjust_ops(team);
566 team_mode_put(team->mode);
567 team_set_no_mode(team);
568 /* zero private data area */
569 memset(&team->mode_priv, 0,
570 sizeof(struct team) - offsetof(struct team, mode_priv));
576 if (new_mode->ops->init) {
579 err = new_mode->ops->init(team);
584 team->mode = new_mode;
585 memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops));
586 team_adjust_ops(team);
591 static int team_change_mode(struct team *team, const char *kind)
593 const struct team_mode *new_mode;
594 struct net_device *dev = team->dev;
597 if (!list_empty(&team->port_list)) {
598 netdev_err(dev, "No ports can be present during mode change\n");
602 if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) {
603 netdev_err(dev, "Unable to change to the same mode the team is in\n");
607 new_mode = team_mode_get(kind);
609 netdev_err(dev, "Mode \"%s\" not found\n", kind);
613 err = __team_change_mode(team, new_mode);
615 netdev_err(dev, "Failed to change to mode \"%s\"\n", kind);
616 team_mode_put(new_mode);
620 netdev_info(dev, "Mode changed to \"%s\"\n", kind);
625 /*********************
627 *********************/
629 static void team_notify_peers_work(struct work_struct *work)
634 team = container_of(work, struct team, notify_peers.dw.work);
636 if (!rtnl_trylock()) {
637 schedule_delayed_work(&team->notify_peers.dw, 0);
640 val = atomic_dec_if_positive(&team->notify_peers.count_pending);
645 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev);
648 schedule_delayed_work(&team->notify_peers.dw,
649 msecs_to_jiffies(team->notify_peers.interval));
652 static void team_notify_peers(struct team *team)
654 if (!team->notify_peers.count || !netif_running(team->dev))
656 atomic_add(team->notify_peers.count, &team->notify_peers.count_pending);
657 schedule_delayed_work(&team->notify_peers.dw, 0);
660 static void team_notify_peers_init(struct team *team)
662 INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work);
665 static void team_notify_peers_fini(struct team *team)
667 cancel_delayed_work_sync(&team->notify_peers.dw);
671 /*******************************
672 * Send multicast group rejoins
673 *******************************/
675 static void team_mcast_rejoin_work(struct work_struct *work)
680 team = container_of(work, struct team, mcast_rejoin.dw.work);
682 if (!rtnl_trylock()) {
683 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
686 val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending);
691 call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev);
694 schedule_delayed_work(&team->mcast_rejoin.dw,
695 msecs_to_jiffies(team->mcast_rejoin.interval));
698 static void team_mcast_rejoin(struct team *team)
700 if (!team->mcast_rejoin.count || !netif_running(team->dev))
702 atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending);
703 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
706 static void team_mcast_rejoin_init(struct team *team)
708 INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work);
711 static void team_mcast_rejoin_fini(struct team *team)
713 cancel_delayed_work_sync(&team->mcast_rejoin.dw);
717 /************************
718 * Rx path frame handler
719 ************************/
721 /* note: already called with rcu_read_lock */
722 static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
724 struct sk_buff *skb = *pskb;
725 struct team_port *port;
727 rx_handler_result_t res;
729 skb = skb_share_check(skb, GFP_ATOMIC);
731 return RX_HANDLER_CONSUMED;
735 port = team_port_get_rcu(skb->dev);
737 if (!team_port_enabled(port)) {
738 /* allow exact match delivery for disabled ports */
739 res = RX_HANDLER_EXACT;
741 res = team->ops.receive(team, port, skb);
743 if (res == RX_HANDLER_ANOTHER) {
744 struct team_pcpu_stats *pcpu_stats;
746 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
747 u64_stats_update_begin(&pcpu_stats->syncp);
748 pcpu_stats->rx_packets++;
749 pcpu_stats->rx_bytes += skb->len;
750 if (skb->pkt_type == PACKET_MULTICAST)
751 pcpu_stats->rx_multicast++;
752 u64_stats_update_end(&pcpu_stats->syncp);
754 skb->dev = team->dev;
755 } else if (res == RX_HANDLER_EXACT) {
756 this_cpu_inc(team->pcpu_stats->rx_nohandler);
758 this_cpu_inc(team->pcpu_stats->rx_dropped);
765 /*************************************
766 * Multiqueue Tx port select override
767 *************************************/
769 static int team_queue_override_init(struct team *team)
771 struct list_head *listarr;
772 unsigned int queue_cnt = team->dev->num_tx_queues - 1;
777 listarr = kmalloc_array(queue_cnt, sizeof(struct list_head),
781 team->qom_lists = listarr;
782 for (i = 0; i < queue_cnt; i++)
783 INIT_LIST_HEAD(listarr++);
787 static void team_queue_override_fini(struct team *team)
789 kfree(team->qom_lists);
792 static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
794 return &team->qom_lists[queue_id - 1];
798 * note: already called with rcu_read_lock
800 static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
802 struct list_head *qom_list;
803 struct team_port *port;
805 if (!team->queue_override_enabled || !skb->queue_mapping)
807 qom_list = __team_get_qom_list(team, skb->queue_mapping);
808 list_for_each_entry_rcu(port, qom_list, qom_list) {
809 if (!team_dev_queue_xmit(team, port, skb))
815 static void __team_queue_override_port_del(struct team *team,
816 struct team_port *port)
820 list_del_rcu(&port->qom_list);
823 static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
824 struct team_port *cur)
826 if (port->priority < cur->priority)
828 if (port->priority > cur->priority)
830 if (port->index < cur->index)
835 static void __team_queue_override_port_add(struct team *team,
836 struct team_port *port)
838 struct team_port *cur;
839 struct list_head *qom_list;
840 struct list_head *node;
844 qom_list = __team_get_qom_list(team, port->queue_id);
846 list_for_each_entry(cur, qom_list, qom_list) {
847 if (team_queue_override_port_has_gt_prio_than(port, cur))
849 node = &cur->qom_list;
851 list_add_tail_rcu(&port->qom_list, node);
854 static void __team_queue_override_enabled_check(struct team *team)
856 struct team_port *port;
857 bool enabled = false;
859 list_for_each_entry(port, &team->port_list, list) {
860 if (port->queue_id) {
865 if (enabled == team->queue_override_enabled)
867 netdev_dbg(team->dev, "%s queue override\n",
868 enabled ? "Enabling" : "Disabling");
869 team->queue_override_enabled = enabled;
872 static void team_queue_override_port_prio_changed(struct team *team,
873 struct team_port *port)
875 if (!port->queue_id || team_port_enabled(port))
877 __team_queue_override_port_del(team, port);
878 __team_queue_override_port_add(team, port);
879 __team_queue_override_enabled_check(team);
882 static void team_queue_override_port_change_queue_id(struct team *team,
883 struct team_port *port,
886 if (team_port_enabled(port)) {
887 __team_queue_override_port_del(team, port);
888 port->queue_id = new_queue_id;
889 __team_queue_override_port_add(team, port);
890 __team_queue_override_enabled_check(team);
892 port->queue_id = new_queue_id;
896 static void team_queue_override_port_add(struct team *team,
897 struct team_port *port)
899 __team_queue_override_port_add(team, port);
900 __team_queue_override_enabled_check(team);
903 static void team_queue_override_port_del(struct team *team,
904 struct team_port *port)
906 __team_queue_override_port_del(team, port);
907 __team_queue_override_enabled_check(team);
915 static bool team_port_find(const struct team *team,
916 const struct team_port *port)
918 struct team_port *cur;
920 list_for_each_entry(cur, &team->port_list, list)
927 * Enable/disable port by adding to enabled port hashlist and setting
928 * port->index (Might be racy so reader could see incorrect ifindex when
929 * processing a flying packet, but that is not a problem). Write guarded
932 static void team_port_enable(struct team *team,
933 struct team_port *port)
935 if (team_port_enabled(port))
937 port->index = team->en_port_count++;
938 hlist_add_head_rcu(&port->hlist,
939 team_port_index_hash(team, port->index));
940 team_adjust_ops(team);
941 team_queue_override_port_add(team, port);
942 if (team->ops.port_enabled)
943 team->ops.port_enabled(team, port);
944 team_notify_peers(team);
945 team_mcast_rejoin(team);
946 team_lower_state_changed(port);
949 static void __reconstruct_port_hlist(struct team *team, int rm_index)
952 struct team_port *port;
954 for (i = rm_index + 1; i < team->en_port_count; i++) {
955 port = team_get_port_by_index(team, i);
956 hlist_del_rcu(&port->hlist);
958 hlist_add_head_rcu(&port->hlist,
959 team_port_index_hash(team, port->index));
963 static void team_port_disable(struct team *team,
964 struct team_port *port)
966 if (!team_port_enabled(port))
968 if (team->ops.port_disabled)
969 team->ops.port_disabled(team, port);
970 hlist_del_rcu(&port->hlist);
971 __reconstruct_port_hlist(team, port->index);
973 team->en_port_count--;
974 team_queue_override_port_del(team, port);
975 team_adjust_ops(team);
976 team_lower_state_changed(port);
979 #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
980 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
981 NETIF_F_HIGHDMA | NETIF_F_LRO)
983 #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
984 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
986 static void __team_compute_features(struct team *team)
988 struct team_port *port;
989 netdev_features_t vlan_features = TEAM_VLAN_FEATURES &
991 netdev_features_t enc_features = TEAM_ENC_FEATURES;
992 unsigned short max_hard_header_len = ETH_HLEN;
993 unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
994 IFF_XMIT_DST_RELEASE_PERM;
996 list_for_each_entry(port, &team->port_list, list) {
997 vlan_features = netdev_increment_features(vlan_features,
998 port->dev->vlan_features,
1001 netdev_increment_features(enc_features,
1002 port->dev->hw_enc_features,
1006 dst_release_flag &= port->dev->priv_flags;
1007 if (port->dev->hard_header_len > max_hard_header_len)
1008 max_hard_header_len = port->dev->hard_header_len;
1011 team->dev->vlan_features = vlan_features;
1012 team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
1014 team->dev->hard_header_len = max_hard_header_len;
1016 team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
1017 if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
1018 team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
1021 static void team_compute_features(struct team *team)
1023 mutex_lock(&team->lock);
1024 __team_compute_features(team);
1025 mutex_unlock(&team->lock);
1026 netdev_change_features(team->dev);
1029 static int team_port_enter(struct team *team, struct team_port *port)
1033 dev_hold(team->dev);
1034 if (team->ops.port_enter) {
1035 err = team->ops.port_enter(team, port);
1037 netdev_err(team->dev, "Device %s failed to enter team mode\n",
1039 goto err_port_enter;
1051 static void team_port_leave(struct team *team, struct team_port *port)
1053 if (team->ops.port_leave)
1054 team->ops.port_leave(team, port);
1058 #ifdef CONFIG_NET_POLL_CONTROLLER
1059 static int __team_port_enable_netpoll(struct team_port *port)
1064 np = kzalloc(sizeof(*np), GFP_KERNEL);
1068 err = __netpoll_setup(np, port->dev);
1077 static int team_port_enable_netpoll(struct team_port *port)
1079 if (!port->team->dev->npinfo)
1082 return __team_port_enable_netpoll(port);
1085 static void team_port_disable_netpoll(struct team_port *port)
1087 struct netpoll *np = port->np;
1096 static int team_port_enable_netpoll(struct team_port *port)
1100 static void team_port_disable_netpoll(struct team_port *port)
1105 static int team_upper_dev_link(struct team *team, struct team_port *port,
1106 struct netlink_ext_ack *extack)
1108 struct netdev_lag_upper_info lag_upper_info;
1111 lag_upper_info.tx_type = team->mode->lag_tx_type;
1112 lag_upper_info.hash_type = NETDEV_LAG_HASH_UNKNOWN;
1113 err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
1114 &lag_upper_info, extack);
1117 port->dev->priv_flags |= IFF_TEAM_PORT;
1121 static void team_upper_dev_unlink(struct team *team, struct team_port *port)
1123 netdev_upper_dev_unlink(port->dev, team->dev);
1124 port->dev->priv_flags &= ~IFF_TEAM_PORT;
1127 static void __team_port_change_port_added(struct team_port *port, bool linkup);
1128 static int team_dev_type_check_change(struct net_device *dev,
1129 struct net_device *port_dev);
1131 static int team_port_add(struct team *team, struct net_device *port_dev,
1132 struct netlink_ext_ack *extack)
1134 struct net_device *dev = team->dev;
1135 struct team_port *port;
1136 char *portname = port_dev->name;
1139 if (port_dev->flags & IFF_LOOPBACK) {
1140 NL_SET_ERR_MSG(extack, "Loopback device can't be added as a team port");
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 NL_SET_ERR_MSG(extack, "Device is already a port of a team device");
1148 netdev_err(dev, "Device %s is already a port "
1149 "of a team device\n", portname);
1153 if (dev == port_dev) {
1154 NL_SET_ERR_MSG(extack, "Cannot enslave team device to itself");
1155 netdev_err(dev, "Cannot enslave team device to itself\n");
1159 if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
1160 vlan_uses_dev(dev)) {
1161 NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up");
1162 netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
1167 err = team_dev_type_check_change(dev, port_dev);
1171 if (port_dev->flags & IFF_UP) {
1172 NL_SET_ERR_MSG(extack, "Device is up. Set it down before adding it as a team port");
1173 netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
1178 port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
1183 port->dev = port_dev;
1185 INIT_LIST_HEAD(&port->qom_list);
1187 port->orig.mtu = port_dev->mtu;
1188 err = dev_set_mtu(port_dev, dev->mtu);
1190 netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err);
1194 memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
1196 err = team_port_enter(team, port);
1198 netdev_err(dev, "Device %s failed to enter team mode\n",
1200 goto err_port_enter;
1203 err = dev_open(port_dev, extack);
1205 netdev_dbg(dev, "Device %s opening failed\n",
1210 err = vlan_vids_add_by_dev(port_dev, dev);
1212 netdev_err(dev, "Failed to add vlan ids to device %s\n",
1217 err = team_port_enable_netpoll(port);
1219 netdev_err(dev, "Failed to enable netpoll on device %s\n",
1221 goto err_enable_netpoll;
1224 if (!(dev->features & NETIF_F_LRO))
1225 dev_disable_lro(port_dev);
1227 err = netdev_rx_handler_register(port_dev, team_handle_frame,
1230 netdev_err(dev, "Device %s failed to register rx_handler\n",
1232 goto err_handler_register;
1235 err = team_upper_dev_link(team, port, extack);
1237 netdev_err(dev, "Device %s failed to set upper link\n",
1239 goto err_set_upper_link;
1242 err = __team_option_inst_add_port(team, port);
1244 netdev_err(dev, "Device %s failed to add per-port options\n",
1246 goto err_option_port_add;
1249 /* set promiscuity level to new slave */
1250 if (dev->flags & IFF_PROMISC) {
1251 err = dev_set_promiscuity(port_dev, 1);
1253 goto err_set_slave_promisc;
1256 /* set allmulti level to new slave */
1257 if (dev->flags & IFF_ALLMULTI) {
1258 err = dev_set_allmulti(port_dev, 1);
1260 if (dev->flags & IFF_PROMISC)
1261 dev_set_promiscuity(port_dev, -1);
1262 goto err_set_slave_promisc;
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_oper_up(port_dev));
1276 __team_options_change_check(team);
1278 netdev_info(dev, "Port device %s added\n", portname);
1282 err_set_slave_promisc:
1283 __team_option_inst_del_port(team, port);
1285 err_option_port_add:
1286 team_upper_dev_unlink(team, port);
1289 netdev_rx_handler_unregister(port_dev);
1291 err_handler_register:
1292 team_port_disable_netpoll(port);
1295 vlan_vids_del_by_dev(port_dev, dev);
1298 dev_close(port_dev);
1301 team_port_leave(team, port);
1302 team_port_set_orig_dev_addr(port);
1305 dev_set_mtu(port_dev, port->orig.mtu);
1313 static void __team_port_change_port_removed(struct team_port *port);
1315 static int team_port_del(struct team *team, struct net_device *port_dev)
1317 struct net_device *dev = team->dev;
1318 struct team_port *port;
1319 char *portname = port_dev->name;
1321 port = team_port_get_rtnl(port_dev);
1322 if (!port || !team_port_find(team, port)) {
1323 netdev_err(dev, "Device %s does not act as a port of this team\n",
1328 team_port_disable(team, port);
1329 list_del_rcu(&port->list);
1331 if (dev->flags & IFF_PROMISC)
1332 dev_set_promiscuity(port_dev, -1);
1333 if (dev->flags & IFF_ALLMULTI)
1334 dev_set_allmulti(port_dev, -1);
1336 team_upper_dev_unlink(team, port);
1337 netdev_rx_handler_unregister(port_dev);
1338 team_port_disable_netpoll(port);
1339 vlan_vids_del_by_dev(port_dev, dev);
1340 dev_uc_unsync(port_dev, dev);
1341 dev_mc_unsync(port_dev, dev);
1342 dev_close(port_dev);
1343 team_port_leave(team, port);
1345 __team_option_inst_mark_removed_port(team, port);
1346 __team_options_change_check(team);
1347 __team_option_inst_del_port(team, port);
1348 __team_port_change_port_removed(port);
1350 team_port_set_orig_dev_addr(port);
1351 dev_set_mtu(port_dev, port->orig.mtu);
1352 kfree_rcu(port, rcu);
1353 netdev_info(dev, "Port device %s removed\n", portname);
1354 __team_compute_features(team);
1364 static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx)
1366 ctx->data.str_val = team->mode->kind;
1370 static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx)
1372 return team_change_mode(team, ctx->data.str_val);
1375 static int team_notify_peers_count_get(struct team *team,
1376 struct team_gsetter_ctx *ctx)
1378 ctx->data.u32_val = team->notify_peers.count;
1382 static int team_notify_peers_count_set(struct team *team,
1383 struct team_gsetter_ctx *ctx)
1385 team->notify_peers.count = ctx->data.u32_val;
1389 static int team_notify_peers_interval_get(struct team *team,
1390 struct team_gsetter_ctx *ctx)
1392 ctx->data.u32_val = team->notify_peers.interval;
1396 static int team_notify_peers_interval_set(struct team *team,
1397 struct team_gsetter_ctx *ctx)
1399 team->notify_peers.interval = ctx->data.u32_val;
1403 static int team_mcast_rejoin_count_get(struct team *team,
1404 struct team_gsetter_ctx *ctx)
1406 ctx->data.u32_val = team->mcast_rejoin.count;
1410 static int team_mcast_rejoin_count_set(struct team *team,
1411 struct team_gsetter_ctx *ctx)
1413 team->mcast_rejoin.count = ctx->data.u32_val;
1417 static int team_mcast_rejoin_interval_get(struct team *team,
1418 struct team_gsetter_ctx *ctx)
1420 ctx->data.u32_val = team->mcast_rejoin.interval;
1424 static int team_mcast_rejoin_interval_set(struct team *team,
1425 struct team_gsetter_ctx *ctx)
1427 team->mcast_rejoin.interval = ctx->data.u32_val;
1431 static int team_port_en_option_get(struct team *team,
1432 struct team_gsetter_ctx *ctx)
1434 struct team_port *port = ctx->info->port;
1436 ctx->data.bool_val = team_port_enabled(port);
1440 static int team_port_en_option_set(struct team *team,
1441 struct team_gsetter_ctx *ctx)
1443 struct team_port *port = ctx->info->port;
1445 if (ctx->data.bool_val)
1446 team_port_enable(team, port);
1448 team_port_disable(team, port);
1452 static int team_user_linkup_option_get(struct team *team,
1453 struct team_gsetter_ctx *ctx)
1455 struct team_port *port = ctx->info->port;
1457 ctx->data.bool_val = port->user.linkup;
1461 static void __team_carrier_check(struct team *team);
1463 static int team_user_linkup_option_set(struct team *team,
1464 struct team_gsetter_ctx *ctx)
1466 struct team_port *port = ctx->info->port;
1468 port->user.linkup = ctx->data.bool_val;
1469 team_refresh_port_linkup(port);
1470 __team_carrier_check(port->team);
1474 static int team_user_linkup_en_option_get(struct team *team,
1475 struct team_gsetter_ctx *ctx)
1477 struct team_port *port = ctx->info->port;
1479 ctx->data.bool_val = port->user.linkup_enabled;
1483 static int team_user_linkup_en_option_set(struct team *team,
1484 struct team_gsetter_ctx *ctx)
1486 struct team_port *port = ctx->info->port;
1488 port->user.linkup_enabled = ctx->data.bool_val;
1489 team_refresh_port_linkup(port);
1490 __team_carrier_check(port->team);
1494 static int team_priority_option_get(struct team *team,
1495 struct team_gsetter_ctx *ctx)
1497 struct team_port *port = ctx->info->port;
1499 ctx->data.s32_val = port->priority;
1503 static int team_priority_option_set(struct team *team,
1504 struct team_gsetter_ctx *ctx)
1506 struct team_port *port = ctx->info->port;
1507 s32 priority = ctx->data.s32_val;
1509 if (port->priority == priority)
1511 port->priority = priority;
1512 team_queue_override_port_prio_changed(team, port);
1516 static int team_queue_id_option_get(struct team *team,
1517 struct team_gsetter_ctx *ctx)
1519 struct team_port *port = ctx->info->port;
1521 ctx->data.u32_val = port->queue_id;
1525 static int team_queue_id_option_set(struct team *team,
1526 struct team_gsetter_ctx *ctx)
1528 struct team_port *port = ctx->info->port;
1529 u16 new_queue_id = ctx->data.u32_val;
1531 if (port->queue_id == new_queue_id)
1533 if (new_queue_id >= team->dev->real_num_tx_queues)
1535 team_queue_override_port_change_queue_id(team, port, new_queue_id);
1539 static const struct team_option team_options[] = {
1542 .type = TEAM_OPTION_TYPE_STRING,
1543 .getter = team_mode_option_get,
1544 .setter = team_mode_option_set,
1547 .name = "notify_peers_count",
1548 .type = TEAM_OPTION_TYPE_U32,
1549 .getter = team_notify_peers_count_get,
1550 .setter = team_notify_peers_count_set,
1553 .name = "notify_peers_interval",
1554 .type = TEAM_OPTION_TYPE_U32,
1555 .getter = team_notify_peers_interval_get,
1556 .setter = team_notify_peers_interval_set,
1559 .name = "mcast_rejoin_count",
1560 .type = TEAM_OPTION_TYPE_U32,
1561 .getter = team_mcast_rejoin_count_get,
1562 .setter = team_mcast_rejoin_count_set,
1565 .name = "mcast_rejoin_interval",
1566 .type = TEAM_OPTION_TYPE_U32,
1567 .getter = team_mcast_rejoin_interval_get,
1568 .setter = team_mcast_rejoin_interval_set,
1572 .type = TEAM_OPTION_TYPE_BOOL,
1574 .getter = team_port_en_option_get,
1575 .setter = team_port_en_option_set,
1578 .name = "user_linkup",
1579 .type = TEAM_OPTION_TYPE_BOOL,
1581 .getter = team_user_linkup_option_get,
1582 .setter = team_user_linkup_option_set,
1585 .name = "user_linkup_enabled",
1586 .type = TEAM_OPTION_TYPE_BOOL,
1588 .getter = team_user_linkup_en_option_get,
1589 .setter = team_user_linkup_en_option_set,
1593 .type = TEAM_OPTION_TYPE_S32,
1595 .getter = team_priority_option_get,
1596 .setter = team_priority_option_set,
1600 .type = TEAM_OPTION_TYPE_U32,
1602 .getter = team_queue_id_option_get,
1603 .setter = team_queue_id_option_set,
1608 static int team_init(struct net_device *dev)
1610 struct team *team = netdev_priv(dev);
1615 mutex_init(&team->lock);
1616 team_set_no_mode(team);
1618 team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats);
1619 if (!team->pcpu_stats)
1622 for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
1623 INIT_HLIST_HEAD(&team->en_port_hlist[i]);
1624 INIT_LIST_HEAD(&team->port_list);
1625 err = team_queue_override_init(team);
1627 goto err_team_queue_override_init;
1629 team_adjust_ops(team);
1631 INIT_LIST_HEAD(&team->option_list);
1632 INIT_LIST_HEAD(&team->option_inst_list);
1634 team_notify_peers_init(team);
1635 team_mcast_rejoin_init(team);
1637 err = team_options_register(team, team_options, ARRAY_SIZE(team_options));
1639 goto err_options_register;
1640 netif_carrier_off(dev);
1642 netdev_lockdep_set_classes(dev);
1646 err_options_register:
1647 team_mcast_rejoin_fini(team);
1648 team_notify_peers_fini(team);
1649 team_queue_override_fini(team);
1650 err_team_queue_override_init:
1651 free_percpu(team->pcpu_stats);
1656 static void team_uninit(struct net_device *dev)
1658 struct team *team = netdev_priv(dev);
1659 struct team_port *port;
1660 struct team_port *tmp;
1662 mutex_lock(&team->lock);
1663 list_for_each_entry_safe(port, tmp, &team->port_list, list)
1664 team_port_del(team, port->dev);
1666 __team_change_mode(team, NULL); /* cleanup */
1667 __team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
1668 team_mcast_rejoin_fini(team);
1669 team_notify_peers_fini(team);
1670 team_queue_override_fini(team);
1671 mutex_unlock(&team->lock);
1672 netdev_change_features(dev);
1675 static void team_destructor(struct net_device *dev)
1677 struct team *team = netdev_priv(dev);
1679 free_percpu(team->pcpu_stats);
1682 static int team_open(struct net_device *dev)
1687 static int team_close(struct net_device *dev)
1693 * note: already called with rcu_read_lock
1695 static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
1697 struct team *team = netdev_priv(dev);
1699 unsigned int len = skb->len;
1701 tx_success = team_queue_override_transmit(team, skb);
1703 tx_success = team->ops.transmit(team, skb);
1705 struct team_pcpu_stats *pcpu_stats;
1707 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
1708 u64_stats_update_begin(&pcpu_stats->syncp);
1709 pcpu_stats->tx_packets++;
1710 pcpu_stats->tx_bytes += len;
1711 u64_stats_update_end(&pcpu_stats->syncp);
1713 this_cpu_inc(team->pcpu_stats->tx_dropped);
1716 return NETDEV_TX_OK;
1719 static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb,
1720 struct net_device *sb_dev,
1721 select_queue_fallback_t fallback)
1724 * This helper function exists to help dev_pick_tx get the correct
1725 * destination queue. Using a helper function skips a call to
1726 * skb_tx_hash and will put the skbs in the queue we expect on their
1727 * way down to the team driver.
1729 u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
1732 * Save the original txq to restore before passing to the driver
1734 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
1736 if (unlikely(txq >= dev->real_num_tx_queues)) {
1738 txq -= dev->real_num_tx_queues;
1739 } while (txq >= dev->real_num_tx_queues);
1744 static void team_change_rx_flags(struct net_device *dev, int change)
1746 struct team *team = netdev_priv(dev);
1747 struct team_port *port;
1751 list_for_each_entry_rcu(port, &team->port_list, list) {
1752 if (change & IFF_PROMISC) {
1753 inc = dev->flags & IFF_PROMISC ? 1 : -1;
1754 dev_set_promiscuity(port->dev, inc);
1756 if (change & IFF_ALLMULTI) {
1757 inc = dev->flags & IFF_ALLMULTI ? 1 : -1;
1758 dev_set_allmulti(port->dev, inc);
1764 static void team_set_rx_mode(struct net_device *dev)
1766 struct team *team = netdev_priv(dev);
1767 struct team_port *port;
1770 list_for_each_entry_rcu(port, &team->port_list, list) {
1771 dev_uc_sync_multiple(port->dev, dev);
1772 dev_mc_sync_multiple(port->dev, dev);
1777 static int team_set_mac_address(struct net_device *dev, void *p)
1779 struct sockaddr *addr = p;
1780 struct team *team = netdev_priv(dev);
1781 struct team_port *port;
1783 if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
1784 return -EADDRNOTAVAIL;
1785 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1786 mutex_lock(&team->lock);
1787 list_for_each_entry(port, &team->port_list, list)
1788 if (team->ops.port_change_dev_addr)
1789 team->ops.port_change_dev_addr(team, port);
1790 mutex_unlock(&team->lock);
1794 static int team_change_mtu(struct net_device *dev, int new_mtu)
1796 struct team *team = netdev_priv(dev);
1797 struct team_port *port;
1801 * Alhough this is reader, it's guarded by team lock. It's not possible
1802 * to traverse list in reverse under rcu_read_lock
1804 mutex_lock(&team->lock);
1805 team->port_mtu_change_allowed = true;
1806 list_for_each_entry(port, &team->port_list, list) {
1807 err = dev_set_mtu(port->dev, new_mtu);
1809 netdev_err(dev, "Device %s failed to change mtu",
1814 team->port_mtu_change_allowed = false;
1815 mutex_unlock(&team->lock);
1822 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1823 dev_set_mtu(port->dev, dev->mtu);
1824 team->port_mtu_change_allowed = false;
1825 mutex_unlock(&team->lock);
1831 team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1833 struct team *team = netdev_priv(dev);
1834 struct team_pcpu_stats *p;
1835 u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes;
1836 u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0;
1840 for_each_possible_cpu(i) {
1841 p = per_cpu_ptr(team->pcpu_stats, i);
1843 start = u64_stats_fetch_begin_irq(&p->syncp);
1844 rx_packets = p->rx_packets;
1845 rx_bytes = p->rx_bytes;
1846 rx_multicast = p->rx_multicast;
1847 tx_packets = p->tx_packets;
1848 tx_bytes = p->tx_bytes;
1849 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
1851 stats->rx_packets += rx_packets;
1852 stats->rx_bytes += rx_bytes;
1853 stats->multicast += rx_multicast;
1854 stats->tx_packets += tx_packets;
1855 stats->tx_bytes += tx_bytes;
1857 * rx_dropped, tx_dropped & rx_nohandler are u32,
1858 * updated without syncp protection.
1860 rx_dropped += p->rx_dropped;
1861 tx_dropped += p->tx_dropped;
1862 rx_nohandler += p->rx_nohandler;
1864 stats->rx_dropped = rx_dropped;
1865 stats->tx_dropped = tx_dropped;
1866 stats->rx_nohandler = rx_nohandler;
1869 static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
1871 struct team *team = netdev_priv(dev);
1872 struct team_port *port;
1876 * Alhough this is reader, it's guarded by team lock. It's not possible
1877 * to traverse list in reverse under rcu_read_lock
1879 mutex_lock(&team->lock);
1880 list_for_each_entry(port, &team->port_list, list) {
1881 err = vlan_vid_add(port->dev, proto, vid);
1885 mutex_unlock(&team->lock);
1890 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1891 vlan_vid_del(port->dev, proto, vid);
1892 mutex_unlock(&team->lock);
1897 static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
1899 struct team *team = netdev_priv(dev);
1900 struct team_port *port;
1902 mutex_lock(&team->lock);
1903 list_for_each_entry(port, &team->port_list, list)
1904 vlan_vid_del(port->dev, proto, vid);
1905 mutex_unlock(&team->lock);
1910 #ifdef CONFIG_NET_POLL_CONTROLLER
1911 static void team_poll_controller(struct net_device *dev)
1915 static void __team_netpoll_cleanup(struct team *team)
1917 struct team_port *port;
1919 list_for_each_entry(port, &team->port_list, list)
1920 team_port_disable_netpoll(port);
1923 static void team_netpoll_cleanup(struct net_device *dev)
1925 struct team *team = netdev_priv(dev);
1927 mutex_lock(&team->lock);
1928 __team_netpoll_cleanup(team);
1929 mutex_unlock(&team->lock);
1932 static int team_netpoll_setup(struct net_device *dev,
1933 struct netpoll_info *npifo)
1935 struct team *team = netdev_priv(dev);
1936 struct team_port *port;
1939 mutex_lock(&team->lock);
1940 list_for_each_entry(port, &team->port_list, list) {
1941 err = __team_port_enable_netpoll(port);
1943 __team_netpoll_cleanup(team);
1947 mutex_unlock(&team->lock);
1952 static int team_add_slave(struct net_device *dev, struct net_device *port_dev,
1953 struct netlink_ext_ack *extack)
1955 struct team *team = netdev_priv(dev);
1958 mutex_lock(&team->lock);
1959 err = team_port_add(team, port_dev, extack);
1960 mutex_unlock(&team->lock);
1963 netdev_change_features(dev);
1968 static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
1970 struct team *team = netdev_priv(dev);
1973 mutex_lock(&team->lock);
1974 err = team_port_del(team, port_dev);
1975 mutex_unlock(&team->lock);
1978 netdev_change_features(dev);
1983 static netdev_features_t team_fix_features(struct net_device *dev,
1984 netdev_features_t features)
1986 struct team_port *port;
1987 struct team *team = netdev_priv(dev);
1988 netdev_features_t mask;
1991 features &= ~NETIF_F_ONE_FOR_ALL;
1992 features |= NETIF_F_ALL_FOR_ALL;
1995 list_for_each_entry_rcu(port, &team->port_list, list) {
1996 features = netdev_increment_features(features,
1997 port->dev->features,
2002 features = netdev_add_tso_features(features, mask);
2007 static int team_change_carrier(struct net_device *dev, bool new_carrier)
2009 struct team *team = netdev_priv(dev);
2011 team->user_carrier_enabled = true;
2014 netif_carrier_on(dev);
2016 netif_carrier_off(dev);
2020 static const struct net_device_ops team_netdev_ops = {
2021 .ndo_init = team_init,
2022 .ndo_uninit = team_uninit,
2023 .ndo_open = team_open,
2024 .ndo_stop = team_close,
2025 .ndo_start_xmit = team_xmit,
2026 .ndo_select_queue = team_select_queue,
2027 .ndo_change_rx_flags = team_change_rx_flags,
2028 .ndo_set_rx_mode = team_set_rx_mode,
2029 .ndo_set_mac_address = team_set_mac_address,
2030 .ndo_change_mtu = team_change_mtu,
2031 .ndo_get_stats64 = team_get_stats64,
2032 .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid,
2033 .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid,
2034 #ifdef CONFIG_NET_POLL_CONTROLLER
2035 .ndo_poll_controller = team_poll_controller,
2036 .ndo_netpoll_setup = team_netpoll_setup,
2037 .ndo_netpoll_cleanup = team_netpoll_cleanup,
2039 .ndo_add_slave = team_add_slave,
2040 .ndo_del_slave = team_del_slave,
2041 .ndo_fix_features = team_fix_features,
2042 .ndo_change_carrier = team_change_carrier,
2043 .ndo_features_check = passthru_features_check,
2046 /***********************
2048 ***********************/
2050 static void team_ethtool_get_drvinfo(struct net_device *dev,
2051 struct ethtool_drvinfo *drvinfo)
2053 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
2054 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
2057 static const struct ethtool_ops team_ethtool_ops = {
2058 .get_drvinfo = team_ethtool_get_drvinfo,
2059 .get_link = ethtool_op_get_link,
2062 /***********************
2063 * rt netlink interface
2064 ***********************/
2066 static void team_setup_by_port(struct net_device *dev,
2067 struct net_device *port_dev)
2069 dev->header_ops = port_dev->header_ops;
2070 dev->type = port_dev->type;
2071 dev->hard_header_len = port_dev->hard_header_len;
2072 dev->addr_len = port_dev->addr_len;
2073 dev->mtu = port_dev->mtu;
2074 memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
2075 eth_hw_addr_inherit(dev, port_dev);
2078 static int team_dev_type_check_change(struct net_device *dev,
2079 struct net_device *port_dev)
2081 struct team *team = netdev_priv(dev);
2082 char *portname = port_dev->name;
2085 if (dev->type == port_dev->type)
2087 if (!list_empty(&team->port_list)) {
2088 netdev_err(dev, "Device %s is of different type\n", portname);
2091 err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
2092 err = notifier_to_errno(err);
2094 netdev_err(dev, "Refused to change device type\n");
2099 team_setup_by_port(dev, port_dev);
2100 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
2104 static void team_setup(struct net_device *dev)
2107 dev->max_mtu = ETH_MAX_MTU;
2109 dev->netdev_ops = &team_netdev_ops;
2110 dev->ethtool_ops = &team_ethtool_ops;
2111 dev->needs_free_netdev = true;
2112 dev->priv_destructor = team_destructor;
2113 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
2114 dev->priv_flags |= IFF_NO_QUEUE;
2115 dev->priv_flags |= IFF_TEAM;
2118 * Indicate we support unicast address filtering. That way core won't
2119 * bring us to promisc mode in case a unicast addr is added.
2120 * Let this up to underlay drivers.
2122 dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
2124 dev->features |= NETIF_F_LLTX;
2125 dev->features |= NETIF_F_GRO;
2127 /* Don't allow team devices to change network namespaces. */
2128 dev->features |= NETIF_F_NETNS_LOCAL;
2130 dev->hw_features = TEAM_VLAN_FEATURES |
2131 NETIF_F_HW_VLAN_CTAG_TX |
2132 NETIF_F_HW_VLAN_CTAG_RX |
2133 NETIF_F_HW_VLAN_CTAG_FILTER;
2135 dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
2136 dev->features |= dev->hw_features;
2139 static int team_newlink(struct net *src_net, struct net_device *dev,
2140 struct nlattr *tb[], struct nlattr *data[],
2141 struct netlink_ext_ack *extack)
2143 if (tb[IFLA_ADDRESS] == NULL)
2144 eth_hw_addr_random(dev);
2146 return register_netdevice(dev);
2149 static int team_validate(struct nlattr *tb[], struct nlattr *data[],
2150 struct netlink_ext_ack *extack)
2152 if (tb[IFLA_ADDRESS]) {
2153 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
2155 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
2156 return -EADDRNOTAVAIL;
2161 static unsigned int team_get_num_tx_queues(void)
2163 return TEAM_DEFAULT_NUM_TX_QUEUES;
2166 static unsigned int team_get_num_rx_queues(void)
2168 return TEAM_DEFAULT_NUM_RX_QUEUES;
2171 static struct rtnl_link_ops team_link_ops __read_mostly = {
2173 .priv_size = sizeof(struct team),
2174 .setup = team_setup,
2175 .newlink = team_newlink,
2176 .validate = team_validate,
2177 .get_num_tx_queues = team_get_num_tx_queues,
2178 .get_num_rx_queues = team_get_num_rx_queues,
2182 /***********************************
2183 * Generic netlink custom interface
2184 ***********************************/
2186 static struct genl_family team_nl_family;
2188 static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = {
2189 [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, },
2190 [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 },
2191 [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED },
2192 [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED },
2195 static const struct nla_policy
2196 team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = {
2197 [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, },
2198 [TEAM_ATTR_OPTION_NAME] = {
2200 .len = TEAM_STRING_MAX_LEN,
2202 [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG },
2203 [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 },
2204 [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY },
2207 static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
2209 struct sk_buff *msg;
2213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2217 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
2218 &team_nl_family, 0, TEAM_CMD_NOOP);
2224 genlmsg_end(msg, hdr);
2226 return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
2235 * Netlink cmd functions should be locked by following two functions.
2236 * Since dev gets held here, that ensures dev won't disappear in between.
2238 static struct team *team_nl_team_get(struct genl_info *info)
2240 struct net *net = genl_info_net(info);
2242 struct net_device *dev;
2245 if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX])
2248 ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]);
2249 dev = dev_get_by_index(net, ifindex);
2250 if (!dev || dev->netdev_ops != &team_netdev_ops) {
2256 team = netdev_priv(dev);
2257 mutex_lock(&team->lock);
2261 static void team_nl_team_put(struct team *team)
2263 mutex_unlock(&team->lock);
2267 typedef int team_nl_send_func_t(struct sk_buff *skb,
2268 struct team *team, u32 portid);
2270 static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
2272 return genlmsg_unicast(dev_net(team->dev), skb, portid);
2275 static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
2276 struct team_option_inst *opt_inst)
2278 struct nlattr *option_item;
2279 struct team_option *option = opt_inst->option;
2280 struct team_option_inst_info *opt_inst_info = &opt_inst->info;
2281 struct team_gsetter_ctx ctx;
2284 ctx.info = opt_inst_info;
2285 err = team_option_get(team, opt_inst, &ctx);
2289 option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION);
2293 if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name))
2295 if (opt_inst_info->port &&
2296 nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX,
2297 opt_inst_info->port->dev->ifindex))
2299 if (opt_inst->option->array_size &&
2300 nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX,
2301 opt_inst_info->array_index))
2304 switch (option->type) {
2305 case TEAM_OPTION_TYPE_U32:
2306 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32))
2308 if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val))
2311 case TEAM_OPTION_TYPE_STRING:
2312 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING))
2314 if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA,
2318 case TEAM_OPTION_TYPE_BINARY:
2319 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY))
2321 if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len,
2322 ctx.data.bin_val.ptr))
2325 case TEAM_OPTION_TYPE_BOOL:
2326 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG))
2328 if (ctx.data.bool_val &&
2329 nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
2332 case TEAM_OPTION_TYPE_S32:
2333 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
2335 if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
2341 if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED))
2343 if (opt_inst->changed) {
2344 if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED))
2346 opt_inst->changed = false;
2348 nla_nest_end(skb, option_item);
2352 nla_nest_cancel(skb, option_item);
2356 static int __send_and_alloc_skb(struct sk_buff **pskb,
2357 struct team *team, u32 portid,
2358 team_nl_send_func_t *send_func)
2363 err = send_func(*pskb, team, portid);
2367 *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2373 static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
2374 int flags, team_nl_send_func_t *send_func,
2375 struct list_head *sel_opt_inst_list)
2377 struct nlattr *option_list;
2378 struct nlmsghdr *nlh;
2380 struct team_option_inst *opt_inst;
2382 struct sk_buff *skb = NULL;
2386 opt_inst = list_first_entry(sel_opt_inst_list,
2387 struct team_option_inst, tmp_list);
2390 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2394 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2395 TEAM_CMD_OPTIONS_GET);
2401 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2402 goto nla_put_failure;
2403 option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION);
2405 goto nla_put_failure;
2409 list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) {
2410 err = team_nl_fill_one_option_get(skb, team, opt_inst);
2412 if (err == -EMSGSIZE) {
2423 nla_nest_end(skb, option_list);
2424 genlmsg_end(skb, hdr);
2429 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2431 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2437 return send_func(skb, team, portid);
2446 static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info)
2449 struct team_option_inst *opt_inst;
2451 LIST_HEAD(sel_opt_inst_list);
2453 team = team_nl_team_get(info);
2457 list_for_each_entry(opt_inst, &team->option_inst_list, list)
2458 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2459 err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq,
2460 NLM_F_ACK, team_nl_send_unicast,
2461 &sel_opt_inst_list);
2463 team_nl_team_put(team);
2468 static int team_nl_send_event_options_get(struct team *team,
2469 struct list_head *sel_opt_inst_list);
2471 static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
2476 struct nlattr *nl_option;
2480 team = team_nl_team_get(info);
2487 if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
2492 nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) {
2493 struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1];
2494 struct nlattr *attr;
2495 struct nlattr *attr_data;
2496 LIST_HEAD(opt_inst_list);
2497 enum team_option_type opt_type;
2498 int opt_port_ifindex = 0; /* != 0 for per-port options */
2499 u32 opt_array_index = 0;
2500 bool opt_is_array = false;
2501 struct team_option_inst *opt_inst;
2503 bool opt_found = false;
2505 if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) {
2509 err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX,
2510 nl_option, team_nl_option_policy,
2514 if (!opt_attrs[TEAM_ATTR_OPTION_NAME] ||
2515 !opt_attrs[TEAM_ATTR_OPTION_TYPE]) {
2519 switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) {
2521 opt_type = TEAM_OPTION_TYPE_U32;
2524 opt_type = TEAM_OPTION_TYPE_STRING;
2527 opt_type = TEAM_OPTION_TYPE_BINARY;
2530 opt_type = TEAM_OPTION_TYPE_BOOL;
2533 opt_type = TEAM_OPTION_TYPE_S32;
2539 attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA];
2540 if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) {
2545 opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]);
2546 attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX];
2548 opt_port_ifindex = nla_get_u32(attr);
2550 attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX];
2552 opt_is_array = true;
2553 opt_array_index = nla_get_u32(attr);
2556 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2557 struct team_option *option = opt_inst->option;
2558 struct team_gsetter_ctx ctx;
2559 struct team_option_inst_info *opt_inst_info;
2562 opt_inst_info = &opt_inst->info;
2563 tmp_ifindex = opt_inst_info->port ?
2564 opt_inst_info->port->dev->ifindex : 0;
2565 if (option->type != opt_type ||
2566 strcmp(option->name, opt_name) ||
2567 tmp_ifindex != opt_port_ifindex ||
2568 (option->array_size && !opt_is_array) ||
2569 opt_inst_info->array_index != opt_array_index)
2572 ctx.info = opt_inst_info;
2574 case TEAM_OPTION_TYPE_U32:
2575 ctx.data.u32_val = nla_get_u32(attr_data);
2577 case TEAM_OPTION_TYPE_STRING:
2578 if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
2582 ctx.data.str_val = nla_data(attr_data);
2584 case TEAM_OPTION_TYPE_BINARY:
2585 ctx.data.bin_val.len = nla_len(attr_data);
2586 ctx.data.bin_val.ptr = nla_data(attr_data);
2588 case TEAM_OPTION_TYPE_BOOL:
2589 ctx.data.bool_val = attr_data ? true : false;
2591 case TEAM_OPTION_TYPE_S32:
2592 ctx.data.s32_val = nla_get_s32(attr_data);
2597 err = team_option_set(team, opt_inst, &ctx);
2600 opt_inst->changed = true;
2601 list_add(&opt_inst->tmp_list, &opt_inst_list);
2608 err = team_nl_send_event_options_get(team, &opt_inst_list);
2614 team_nl_team_put(team);
2620 static int team_nl_fill_one_port_get(struct sk_buff *skb,
2621 struct team_port *port)
2623 struct nlattr *port_item;
2625 port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT);
2628 if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex))
2630 if (port->changed) {
2631 if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED))
2633 port->changed = false;
2635 if ((port->removed &&
2636 nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) ||
2637 (port->state.linkup &&
2638 nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) ||
2639 nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) ||
2640 nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex))
2642 nla_nest_end(skb, port_item);
2646 nla_nest_cancel(skb, port_item);
2650 static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,
2651 int flags, team_nl_send_func_t *send_func,
2652 struct team_port *one_port)
2654 struct nlattr *port_list;
2655 struct nlmsghdr *nlh;
2657 struct team_port *port;
2659 struct sk_buff *skb = NULL;
2663 port = list_first_entry_or_null(&team->port_list,
2664 struct team_port, list);
2667 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2671 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
2672 TEAM_CMD_PORT_LIST_GET);
2678 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2679 goto nla_put_failure;
2680 port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT);
2682 goto nla_put_failure;
2687 /* If one port is selected, called wants to send port list containing
2688 * only this port. Otherwise go through all listed ports and send all
2691 err = team_nl_fill_one_port_get(skb, one_port);
2695 list_for_each_entry_from(port, &team->port_list, list) {
2696 err = team_nl_fill_one_port_get(skb, port);
2698 if (err == -EMSGSIZE) {
2710 nla_nest_end(skb, port_list);
2711 genlmsg_end(skb, hdr);
2716 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2718 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2724 return send_func(skb, team, portid);
2733 static int team_nl_cmd_port_list_get(struct sk_buff *skb,
2734 struct genl_info *info)
2739 team = team_nl_team_get(info);
2743 err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq,
2744 NLM_F_ACK, team_nl_send_unicast, NULL);
2746 team_nl_team_put(team);
2751 static const struct genl_ops team_nl_ops[] = {
2753 .cmd = TEAM_CMD_NOOP,
2754 .doit = team_nl_cmd_noop,
2755 .policy = team_nl_policy,
2758 .cmd = TEAM_CMD_OPTIONS_SET,
2759 .doit = team_nl_cmd_options_set,
2760 .policy = team_nl_policy,
2761 .flags = GENL_ADMIN_PERM,
2764 .cmd = TEAM_CMD_OPTIONS_GET,
2765 .doit = team_nl_cmd_options_get,
2766 .policy = team_nl_policy,
2767 .flags = GENL_ADMIN_PERM,
2770 .cmd = TEAM_CMD_PORT_LIST_GET,
2771 .doit = team_nl_cmd_port_list_get,
2772 .policy = team_nl_policy,
2773 .flags = GENL_ADMIN_PERM,
2777 static const struct genl_multicast_group team_nl_mcgrps[] = {
2778 { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
2781 static struct genl_family team_nl_family __ro_after_init = {
2782 .name = TEAM_GENL_NAME,
2783 .version = TEAM_GENL_VERSION,
2784 .maxattr = TEAM_ATTR_MAX,
2786 .module = THIS_MODULE,
2788 .n_ops = ARRAY_SIZE(team_nl_ops),
2789 .mcgrps = team_nl_mcgrps,
2790 .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps),
2793 static int team_nl_send_multicast(struct sk_buff *skb,
2794 struct team *team, u32 portid)
2796 return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
2797 skb, 0, 0, GFP_KERNEL);
2800 static int team_nl_send_event_options_get(struct team *team,
2801 struct list_head *sel_opt_inst_list)
2803 return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast,
2807 static int team_nl_send_event_port_get(struct team *team,
2808 struct team_port *port)
2810 return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast,
2814 static int __init team_nl_init(void)
2816 return genl_register_family(&team_nl_family);
2819 static void team_nl_fini(void)
2821 genl_unregister_family(&team_nl_family);
2829 static void __team_options_change_check(struct team *team)
2832 struct team_option_inst *opt_inst;
2833 LIST_HEAD(sel_opt_inst_list);
2835 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2836 if (opt_inst->changed)
2837 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2839 err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
2840 if (err && err != -ESRCH)
2841 netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
2845 /* rtnl lock is held */
2847 static void __team_port_change_send(struct team_port *port, bool linkup)
2851 port->changed = true;
2852 port->state.linkup = linkup;
2853 team_refresh_port_linkup(port);
2855 struct ethtool_link_ksettings ecmd;
2857 err = __ethtool_get_link_ksettings(port->dev, &ecmd);
2859 port->state.speed = ecmd.base.speed;
2860 port->state.duplex = ecmd.base.duplex;
2864 port->state.speed = 0;
2865 port->state.duplex = 0;
2868 err = team_nl_send_event_port_get(port->team, port);
2869 if (err && err != -ESRCH)
2870 netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
2871 port->dev->name, err);
2875 static void __team_carrier_check(struct team *team)
2877 struct team_port *port;
2880 if (team->user_carrier_enabled)
2883 team_linkup = false;
2884 list_for_each_entry(port, &team->port_list, list) {
2892 netif_carrier_on(team->dev);
2894 netif_carrier_off(team->dev);
2897 static void __team_port_change_check(struct team_port *port, bool linkup)
2899 if (port->state.linkup != linkup)
2900 __team_port_change_send(port, linkup);
2901 __team_carrier_check(port->team);
2904 static void __team_port_change_port_added(struct team_port *port, bool linkup)
2906 __team_port_change_send(port, linkup);
2907 __team_carrier_check(port->team);
2910 static void __team_port_change_port_removed(struct team_port *port)
2912 port->removed = true;
2913 __team_port_change_send(port, false);
2914 __team_carrier_check(port->team);
2917 static void team_port_change_check(struct team_port *port, bool linkup)
2919 struct team *team = port->team;
2921 mutex_lock(&team->lock);
2922 __team_port_change_check(port, linkup);
2923 mutex_unlock(&team->lock);
2927 /************************************
2928 * Net device notifier event handler
2929 ************************************/
2931 static int team_device_event(struct notifier_block *unused,
2932 unsigned long event, void *ptr)
2934 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2935 struct team_port *port;
2937 port = team_port_get_rtnl(dev);
2943 if (netif_oper_up(dev))
2944 team_port_change_check(port, true);
2947 team_port_change_check(port, false);
2950 if (netif_running(port->dev))
2951 team_port_change_check(port,
2952 !!netif_oper_up(port->dev));
2954 case NETDEV_UNREGISTER:
2955 team_del_slave(port->team->dev, dev);
2957 case NETDEV_FEAT_CHANGE:
2958 team_compute_features(port->team);
2960 case NETDEV_PRECHANGEMTU:
2961 /* Forbid to change mtu of underlaying device */
2962 if (!port->team->port_mtu_change_allowed)
2965 case NETDEV_PRE_TYPE_CHANGE:
2966 /* Forbid to change type of underlaying device */
2968 case NETDEV_RESEND_IGMP:
2969 /* Propagate to master device */
2970 call_netdevice_notifiers(event, port->team->dev);
2976 static struct notifier_block team_notifier_block __read_mostly = {
2977 .notifier_call = team_device_event,
2981 /***********************
2982 * Module init and exit
2983 ***********************/
2985 static int __init team_module_init(void)
2989 register_netdevice_notifier(&team_notifier_block);
2991 err = rtnl_link_register(&team_link_ops);
2995 err = team_nl_init();
3002 rtnl_link_unregister(&team_link_ops);
3005 unregister_netdevice_notifier(&team_notifier_block);
3010 static void __exit team_module_exit(void)
3013 rtnl_link_unregister(&team_link_ops);
3014 unregister_netdevice_notifier(&team_notifier_block);
3017 module_init(team_module_init);
3018 module_exit(team_module_exit);
3020 MODULE_LICENSE("GPL v2");
3021 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
3022 MODULE_DESCRIPTION("Ethernet team device driver");
3023 MODULE_ALIAS_RTNL_LINK(DRV_NAME);