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 <linux/if_team.h>
33 #define DRV_NAME "team"
40 #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT)
42 static struct team_port
*team_port_get_rcu(const struct net_device
*dev
)
44 struct team_port
*port
= rcu_dereference(dev
->rx_handler_data
);
46 return team_port_exists(dev
) ? port
: NULL
;
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 int team_port_set_team_dev_addr(struct team_port
*port
)
77 return __set_port_dev_addr(port
->dev
, port
->team
->dev
->dev_addr
);
79 EXPORT_SYMBOL(team_port_set_team_dev_addr
);
81 static void team_refresh_port_linkup(struct team_port
*port
)
83 port
->linkup
= port
->user
.linkup_enabled
? port
->user
.linkup
:
92 struct team_option_inst
{ /* One for each option instance */
93 struct list_head list
;
94 struct list_head tmp_list
;
95 struct team_option
*option
;
96 struct team_option_inst_info info
;
101 static struct team_option
*__team_find_option(struct team
*team
,
102 const char *opt_name
)
104 struct team_option
*option
;
106 list_for_each_entry(option
, &team
->option_list
, list
) {
107 if (strcmp(option
->name
, opt_name
) == 0)
113 static void __team_option_inst_del(struct team_option_inst
*opt_inst
)
115 list_del(&opt_inst
->list
);
119 static void __team_option_inst_del_option(struct team
*team
,
120 struct team_option
*option
)
122 struct team_option_inst
*opt_inst
, *tmp
;
124 list_for_each_entry_safe(opt_inst
, tmp
, &team
->option_inst_list
, list
) {
125 if (opt_inst
->option
== option
)
126 __team_option_inst_del(opt_inst
);
130 static int __team_option_inst_add(struct team
*team
, struct team_option
*option
,
131 struct team_port
*port
)
133 struct team_option_inst
*opt_inst
;
134 unsigned int array_size
;
138 array_size
= option
->array_size
;
140 array_size
= 1; /* No array but still need one instance */
142 for (i
= 0; i
< array_size
; i
++) {
143 opt_inst
= kmalloc(sizeof(*opt_inst
), GFP_KERNEL
);
146 opt_inst
->option
= option
;
147 opt_inst
->info
.port
= port
;
148 opt_inst
->info
.array_index
= i
;
149 opt_inst
->changed
= true;
150 opt_inst
->removed
= false;
151 list_add_tail(&opt_inst
->list
, &team
->option_inst_list
);
153 err
= option
->init(team
, &opt_inst
->info
);
162 static int __team_option_inst_add_option(struct team
*team
,
163 struct team_option
*option
)
165 struct team_port
*port
;
168 if (!option
->per_port
) {
169 err
= __team_option_inst_add(team
, option
, NULL
);
171 goto inst_del_option
;
174 list_for_each_entry(port
, &team
->port_list
, list
) {
175 err
= __team_option_inst_add(team
, option
, port
);
177 goto inst_del_option
;
182 __team_option_inst_del_option(team
, option
);
186 static void __team_option_inst_mark_removed_option(struct team
*team
,
187 struct team_option
*option
)
189 struct team_option_inst
*opt_inst
;
191 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
192 if (opt_inst
->option
== option
) {
193 opt_inst
->changed
= true;
194 opt_inst
->removed
= true;
199 static void __team_option_inst_del_port(struct team
*team
,
200 struct team_port
*port
)
202 struct team_option_inst
*opt_inst
, *tmp
;
204 list_for_each_entry_safe(opt_inst
, tmp
, &team
->option_inst_list
, list
) {
205 if (opt_inst
->option
->per_port
&&
206 opt_inst
->info
.port
== port
)
207 __team_option_inst_del(opt_inst
);
211 static int __team_option_inst_add_port(struct team
*team
,
212 struct team_port
*port
)
214 struct team_option
*option
;
217 list_for_each_entry(option
, &team
->option_list
, list
) {
218 if (!option
->per_port
)
220 err
= __team_option_inst_add(team
, option
, port
);
227 __team_option_inst_del_port(team
, port
);
231 static void __team_option_inst_mark_removed_port(struct team
*team
,
232 struct team_port
*port
)
234 struct team_option_inst
*opt_inst
;
236 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
237 if (opt_inst
->info
.port
== port
) {
238 opt_inst
->changed
= true;
239 opt_inst
->removed
= true;
244 static int __team_options_register(struct team
*team
,
245 const struct team_option
*option
,
249 struct team_option
**dst_opts
;
252 dst_opts
= kzalloc(sizeof(struct team_option
*) * option_count
,
256 for (i
= 0; i
< option_count
; i
++, option
++) {
257 if (__team_find_option(team
, option
->name
)) {
261 dst_opts
[i
] = kmemdup(option
, sizeof(*option
), GFP_KERNEL
);
268 for (i
= 0; i
< option_count
; i
++) {
269 err
= __team_option_inst_add_option(team
, dst_opts
[i
]);
272 list_add_tail(&dst_opts
[i
]->list
, &team
->option_list
);
279 for (i
--; i
>= 0; i
--)
280 __team_option_inst_del_option(team
, dst_opts
[i
]);
282 i
= option_count
- 1;
284 for (i
--; i
>= 0; i
--)
291 static void __team_options_mark_removed(struct team
*team
,
292 const struct team_option
*option
,
297 for (i
= 0; i
< option_count
; i
++, option
++) {
298 struct team_option
*del_opt
;
300 del_opt
= __team_find_option(team
, option
->name
);
302 __team_option_inst_mark_removed_option(team
, del_opt
);
306 static void __team_options_unregister(struct team
*team
,
307 const struct team_option
*option
,
312 for (i
= 0; i
< option_count
; i
++, option
++) {
313 struct team_option
*del_opt
;
315 del_opt
= __team_find_option(team
, option
->name
);
317 __team_option_inst_del_option(team
, del_opt
);
318 list_del(&del_opt
->list
);
324 static void __team_options_change_check(struct team
*team
);
326 int team_options_register(struct team
*team
,
327 const struct team_option
*option
,
332 err
= __team_options_register(team
, option
, option_count
);
335 __team_options_change_check(team
);
338 EXPORT_SYMBOL(team_options_register
);
340 void team_options_unregister(struct team
*team
,
341 const struct team_option
*option
,
344 __team_options_mark_removed(team
, option
, option_count
);
345 __team_options_change_check(team
);
346 __team_options_unregister(team
, option
, option_count
);
348 EXPORT_SYMBOL(team_options_unregister
);
350 static int team_option_get(struct team
*team
,
351 struct team_option_inst
*opt_inst
,
352 struct team_gsetter_ctx
*ctx
)
354 if (!opt_inst
->option
->getter
)
356 return opt_inst
->option
->getter(team
, ctx
);
359 static int team_option_set(struct team
*team
,
360 struct team_option_inst
*opt_inst
,
361 struct team_gsetter_ctx
*ctx
)
363 if (!opt_inst
->option
->setter
)
365 return opt_inst
->option
->setter(team
, ctx
);
368 void team_option_inst_set_change(struct team_option_inst_info
*opt_inst_info
)
370 struct team_option_inst
*opt_inst
;
372 opt_inst
= container_of(opt_inst_info
, struct team_option_inst
, info
);
373 opt_inst
->changed
= true;
375 EXPORT_SYMBOL(team_option_inst_set_change
);
377 void team_options_change_check(struct team
*team
)
379 __team_options_change_check(team
);
381 EXPORT_SYMBOL(team_options_change_check
);
388 static LIST_HEAD(mode_list
);
389 static DEFINE_SPINLOCK(mode_list_lock
);
391 struct team_mode_item
{
392 struct list_head list
;
393 const struct team_mode
*mode
;
396 static struct team_mode_item
*__find_mode(const char *kind
)
398 struct team_mode_item
*mitem
;
400 list_for_each_entry(mitem
, &mode_list
, list
) {
401 if (strcmp(mitem
->mode
->kind
, kind
) == 0)
407 static bool is_good_mode_name(const char *name
)
409 while (*name
!= '\0') {
410 if (!isalpha(*name
) && !isdigit(*name
) && *name
!= '_')
417 int team_mode_register(const struct team_mode
*mode
)
420 struct team_mode_item
*mitem
;
422 if (!is_good_mode_name(mode
->kind
) ||
423 mode
->priv_size
> TEAM_MODE_PRIV_SIZE
)
426 mitem
= kmalloc(sizeof(*mitem
), GFP_KERNEL
);
430 spin_lock(&mode_list_lock
);
431 if (__find_mode(mode
->kind
)) {
437 list_add_tail(&mitem
->list
, &mode_list
);
439 spin_unlock(&mode_list_lock
);
442 EXPORT_SYMBOL(team_mode_register
);
444 void team_mode_unregister(const struct team_mode
*mode
)
446 struct team_mode_item
*mitem
;
448 spin_lock(&mode_list_lock
);
449 mitem
= __find_mode(mode
->kind
);
451 list_del_init(&mitem
->list
);
454 spin_unlock(&mode_list_lock
);
456 EXPORT_SYMBOL(team_mode_unregister
);
458 static const struct team_mode
*team_mode_get(const char *kind
)
460 struct team_mode_item
*mitem
;
461 const struct team_mode
*mode
= NULL
;
463 spin_lock(&mode_list_lock
);
464 mitem
= __find_mode(kind
);
466 spin_unlock(&mode_list_lock
);
467 request_module("team-mode-%s", kind
);
468 spin_lock(&mode_list_lock
);
469 mitem
= __find_mode(kind
);
473 if (!try_module_get(mode
->owner
))
477 spin_unlock(&mode_list_lock
);
481 static void team_mode_put(const struct team_mode
*mode
)
483 module_put(mode
->owner
);
486 static bool team_dummy_transmit(struct team
*team
, struct sk_buff
*skb
)
488 dev_kfree_skb_any(skb
);
492 rx_handler_result_t
team_dummy_receive(struct team
*team
,
493 struct team_port
*port
,
496 return RX_HANDLER_ANOTHER
;
499 static const struct team_mode __team_no_mode
= {
503 static bool team_is_mode_set(struct team
*team
)
505 return team
->mode
!= &__team_no_mode
;
508 static void team_set_no_mode(struct team
*team
)
510 team
->mode
= &__team_no_mode
;
513 static void __team_adjust_ops(struct team
*team
, int en_port_count
)
516 * To avoid checks in rx/tx skb paths, ensure here that non-null and
517 * correct ops are always set.
520 if (!en_port_count
|| !team_is_mode_set(team
) ||
521 !team
->mode
->ops
->transmit
)
522 team
->ops
.transmit
= team_dummy_transmit
;
524 team
->ops
.transmit
= team
->mode
->ops
->transmit
;
526 if (!en_port_count
|| !team_is_mode_set(team
) ||
527 !team
->mode
->ops
->receive
)
528 team
->ops
.receive
= team_dummy_receive
;
530 team
->ops
.receive
= team
->mode
->ops
->receive
;
533 static void team_adjust_ops(struct team
*team
)
535 __team_adjust_ops(team
, team
->en_port_count
);
539 * We can benefit from the fact that it's ensured no port is present
540 * at the time of mode change. Therefore no packets are in fly so there's no
541 * need to set mode operations in any special way.
543 static int __team_change_mode(struct team
*team
,
544 const struct team_mode
*new_mode
)
546 /* Check if mode was previously set and do cleanup if so */
547 if (team_is_mode_set(team
)) {
548 void (*exit_op
)(struct team
*team
) = team
->ops
.exit
;
550 /* Clear ops area so no callback is called any longer */
551 memset(&team
->ops
, 0, sizeof(struct team_mode_ops
));
552 team_adjust_ops(team
);
556 team_mode_put(team
->mode
);
557 team_set_no_mode(team
);
558 /* zero private data area */
559 memset(&team
->mode_priv
, 0,
560 sizeof(struct team
) - offsetof(struct team
, mode_priv
));
566 if (new_mode
->ops
->init
) {
569 err
= new_mode
->ops
->init(team
);
574 team
->mode
= new_mode
;
575 memcpy(&team
->ops
, new_mode
->ops
, sizeof(struct team_mode_ops
));
576 team_adjust_ops(team
);
581 static int team_change_mode(struct team
*team
, const char *kind
)
583 const struct team_mode
*new_mode
;
584 struct net_device
*dev
= team
->dev
;
587 if (!list_empty(&team
->port_list
)) {
588 netdev_err(dev
, "No ports can be present during mode change\n");
592 if (team_is_mode_set(team
) && strcmp(team
->mode
->kind
, kind
) == 0) {
593 netdev_err(dev
, "Unable to change to the same mode the team is in\n");
597 new_mode
= team_mode_get(kind
);
599 netdev_err(dev
, "Mode \"%s\" not found\n", kind
);
603 err
= __team_change_mode(team
, new_mode
);
605 netdev_err(dev
, "Failed to change to mode \"%s\"\n", kind
);
606 team_mode_put(new_mode
);
610 netdev_info(dev
, "Mode changed to \"%s\"\n", kind
);
615 /************************
616 * Rx path frame handler
617 ************************/
619 /* note: already called with rcu_read_lock */
620 static rx_handler_result_t
team_handle_frame(struct sk_buff
**pskb
)
622 struct sk_buff
*skb
= *pskb
;
623 struct team_port
*port
;
625 rx_handler_result_t res
;
627 skb
= skb_share_check(skb
, GFP_ATOMIC
);
629 return RX_HANDLER_CONSUMED
;
633 port
= team_port_get_rcu(skb
->dev
);
635 if (!team_port_enabled(port
)) {
636 /* allow exact match delivery for disabled ports */
637 res
= RX_HANDLER_EXACT
;
639 res
= team
->ops
.receive(team
, port
, skb
);
641 if (res
== RX_HANDLER_ANOTHER
) {
642 struct team_pcpu_stats
*pcpu_stats
;
644 pcpu_stats
= this_cpu_ptr(team
->pcpu_stats
);
645 u64_stats_update_begin(&pcpu_stats
->syncp
);
646 pcpu_stats
->rx_packets
++;
647 pcpu_stats
->rx_bytes
+= skb
->len
;
648 if (skb
->pkt_type
== PACKET_MULTICAST
)
649 pcpu_stats
->rx_multicast
++;
650 u64_stats_update_end(&pcpu_stats
->syncp
);
652 skb
->dev
= team
->dev
;
654 this_cpu_inc(team
->pcpu_stats
->rx_dropped
);
661 /*************************************
662 * Multiqueue Tx port select override
663 *************************************/
665 static int team_queue_override_init(struct team
*team
)
667 struct list_head
*listarr
;
668 unsigned int queue_cnt
= team
->dev
->num_tx_queues
- 1;
673 listarr
= kmalloc(sizeof(struct list_head
) * queue_cnt
, GFP_KERNEL
);
676 team
->qom_lists
= listarr
;
677 for (i
= 0; i
< queue_cnt
; i
++)
678 INIT_LIST_HEAD(listarr
++);
682 static void team_queue_override_fini(struct team
*team
)
684 kfree(team
->qom_lists
);
687 static struct list_head
*__team_get_qom_list(struct team
*team
, u16 queue_id
)
689 return &team
->qom_lists
[queue_id
- 1];
693 * note: already called with rcu_read_lock
695 static bool team_queue_override_transmit(struct team
*team
, struct sk_buff
*skb
)
697 struct list_head
*qom_list
;
698 struct team_port
*port
;
700 if (!team
->queue_override_enabled
|| !skb
->queue_mapping
)
702 qom_list
= __team_get_qom_list(team
, skb
->queue_mapping
);
703 list_for_each_entry_rcu(port
, qom_list
, qom_list
) {
704 if (!team_dev_queue_xmit(team
, port
, skb
))
710 static void __team_queue_override_port_del(struct team
*team
,
711 struct team_port
*port
)
713 list_del_rcu(&port
->qom_list
);
715 INIT_LIST_HEAD(&port
->qom_list
);
718 static bool team_queue_override_port_has_gt_prio_than(struct team_port
*port
,
719 struct team_port
*cur
)
721 if (port
->priority
< cur
->priority
)
723 if (port
->priority
> cur
->priority
)
725 if (port
->index
< cur
->index
)
730 static void __team_queue_override_port_add(struct team
*team
,
731 struct team_port
*port
)
733 struct team_port
*cur
;
734 struct list_head
*qom_list
;
735 struct list_head
*node
;
737 if (!port
->queue_id
|| !team_port_enabled(port
))
740 qom_list
= __team_get_qom_list(team
, port
->queue_id
);
742 list_for_each_entry(cur
, qom_list
, qom_list
) {
743 if (team_queue_override_port_has_gt_prio_than(port
, cur
))
745 node
= &cur
->qom_list
;
747 list_add_tail_rcu(&port
->qom_list
, node
);
750 static void __team_queue_override_enabled_check(struct team
*team
)
752 struct team_port
*port
;
753 bool enabled
= false;
755 list_for_each_entry(port
, &team
->port_list
, list
) {
756 if (!list_empty(&port
->qom_list
)) {
761 if (enabled
== team
->queue_override_enabled
)
763 netdev_dbg(team
->dev
, "%s queue override\n",
764 enabled
? "Enabling" : "Disabling");
765 team
->queue_override_enabled
= enabled
;
768 static void team_queue_override_port_refresh(struct team
*team
,
769 struct team_port
*port
)
771 __team_queue_override_port_del(team
, port
);
772 __team_queue_override_port_add(team
, port
);
773 __team_queue_override_enabled_check(team
);
781 static bool team_port_find(const struct team
*team
,
782 const struct team_port
*port
)
784 struct team_port
*cur
;
786 list_for_each_entry(cur
, &team
->port_list
, list
)
793 * Enable/disable port by adding to enabled port hashlist and setting
794 * port->index (Might be racy so reader could see incorrect ifindex when
795 * processing a flying packet, but that is not a problem). Write guarded
798 static void team_port_enable(struct team
*team
,
799 struct team_port
*port
)
801 if (team_port_enabled(port
))
803 port
->index
= team
->en_port_count
++;
804 hlist_add_head_rcu(&port
->hlist
,
805 team_port_index_hash(team
, port
->index
));
806 team_adjust_ops(team
);
807 team_queue_override_port_refresh(team
, port
);
808 if (team
->ops
.port_enabled
)
809 team
->ops
.port_enabled(team
, port
);
812 static void __reconstruct_port_hlist(struct team
*team
, int rm_index
)
815 struct team_port
*port
;
817 for (i
= rm_index
+ 1; i
< team
->en_port_count
; i
++) {
818 port
= team_get_port_by_index(team
, i
);
819 hlist_del_rcu(&port
->hlist
);
821 hlist_add_head_rcu(&port
->hlist
,
822 team_port_index_hash(team
, port
->index
));
826 static void team_port_disable(struct team
*team
,
827 struct team_port
*port
)
829 if (!team_port_enabled(port
))
831 if (team
->ops
.port_disabled
)
832 team
->ops
.port_disabled(team
, port
);
833 hlist_del_rcu(&port
->hlist
);
834 __reconstruct_port_hlist(team
, port
->index
);
836 team_queue_override_port_refresh(team
, port
);
837 __team_adjust_ops(team
, team
->en_port_count
- 1);
839 * Wait until readers see adjusted ops. This ensures that
840 * readers never see team->en_port_count == 0
843 team
->en_port_count
--;
846 #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
847 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
848 NETIF_F_HIGHDMA | NETIF_F_LRO)
850 static void __team_compute_features(struct team
*team
)
852 struct team_port
*port
;
853 u32 vlan_features
= TEAM_VLAN_FEATURES
;
854 unsigned short max_hard_header_len
= ETH_HLEN
;
855 unsigned int flags
, dst_release_flag
= IFF_XMIT_DST_RELEASE
;
857 list_for_each_entry(port
, &team
->port_list
, list
) {
858 vlan_features
= netdev_increment_features(vlan_features
,
859 port
->dev
->vlan_features
,
862 dst_release_flag
&= port
->dev
->priv_flags
;
863 if (port
->dev
->hard_header_len
> max_hard_header_len
)
864 max_hard_header_len
= port
->dev
->hard_header_len
;
867 team
->dev
->vlan_features
= vlan_features
;
868 team
->dev
->hard_header_len
= max_hard_header_len
;
870 flags
= team
->dev
->priv_flags
& ~IFF_XMIT_DST_RELEASE
;
871 team
->dev
->priv_flags
= flags
| dst_release_flag
;
873 netdev_change_features(team
->dev
);
876 static void team_compute_features(struct team
*team
)
878 mutex_lock(&team
->lock
);
879 __team_compute_features(team
);
880 mutex_unlock(&team
->lock
);
883 static int team_port_enter(struct team
*team
, struct team_port
*port
)
888 port
->dev
->priv_flags
|= IFF_TEAM_PORT
;
889 if (team
->ops
.port_enter
) {
890 err
= team
->ops
.port_enter(team
, port
);
892 netdev_err(team
->dev
, "Device %s failed to enter team mode\n",
901 port
->dev
->priv_flags
&= ~IFF_TEAM_PORT
;
907 static void team_port_leave(struct team
*team
, struct team_port
*port
)
909 if (team
->ops
.port_leave
)
910 team
->ops
.port_leave(team
, port
);
911 port
->dev
->priv_flags
&= ~IFF_TEAM_PORT
;
915 #ifdef CONFIG_NET_POLL_CONTROLLER
916 static int team_port_enable_netpoll(struct team
*team
, struct team_port
*port
,
922 np
= kzalloc(sizeof(*np
), gfp
);
926 err
= __netpoll_setup(np
, port
->dev
, gfp
);
935 static void team_port_disable_netpoll(struct team_port
*port
)
937 struct netpoll
*np
= port
->np
;
943 /* Wait for transmitting packets to finish before freeing. */
944 synchronize_rcu_bh();
945 __netpoll_cleanup(np
);
949 static struct netpoll_info
*team_netpoll_info(struct team
*team
)
951 return team
->dev
->npinfo
;
955 static int team_port_enable_netpoll(struct team
*team
, struct team_port
*port
,
960 static void team_port_disable_netpoll(struct team_port
*port
)
963 static struct netpoll_info
*team_netpoll_info(struct team
*team
)
969 static void __team_port_change_port_added(struct team_port
*port
, bool linkup
);
970 static int team_dev_type_check_change(struct net_device
*dev
,
971 struct net_device
*port_dev
);
973 static int team_port_add(struct team
*team
, struct net_device
*port_dev
)
975 struct net_device
*dev
= team
->dev
;
976 struct team_port
*port
;
977 char *portname
= port_dev
->name
;
980 if (port_dev
->flags
& IFF_LOOPBACK
) {
981 netdev_err(dev
, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
986 if (team_port_exists(port_dev
)) {
987 netdev_err(dev
, "Device %s is already a port "
988 "of a team device\n", portname
);
992 if (port_dev
->features
& NETIF_F_VLAN_CHALLENGED
&&
993 vlan_uses_dev(dev
)) {
994 netdev_err(dev
, "Device %s is VLAN challenged and team device has VLAN set up\n",
999 err
= team_dev_type_check_change(dev
, port_dev
);
1003 if (port_dev
->flags
& IFF_UP
) {
1004 netdev_err(dev
, "Device %s is up. Set it down before adding it as a team port\n",
1009 port
= kzalloc(sizeof(struct team_port
) + team
->mode
->port_priv_size
,
1014 port
->dev
= port_dev
;
1016 INIT_LIST_HEAD(&port
->qom_list
);
1018 port
->orig
.mtu
= port_dev
->mtu
;
1019 err
= dev_set_mtu(port_dev
, dev
->mtu
);
1021 netdev_dbg(dev
, "Error %d calling dev_set_mtu\n", err
);
1025 memcpy(port
->orig
.dev_addr
, port_dev
->dev_addr
, port_dev
->addr_len
);
1027 err
= team_port_enter(team
, port
);
1029 netdev_err(dev
, "Device %s failed to enter team mode\n",
1031 goto err_port_enter
;
1034 err
= dev_open(port_dev
);
1036 netdev_dbg(dev
, "Device %s opening failed\n",
1041 err
= vlan_vids_add_by_dev(port_dev
, dev
);
1043 netdev_err(dev
, "Failed to add vlan ids to device %s\n",
1048 if (team_netpoll_info(team
)) {
1049 err
= team_port_enable_netpoll(team
, port
, GFP_KERNEL
);
1051 netdev_err(dev
, "Failed to enable netpoll on device %s\n",
1053 goto err_enable_netpoll
;
1057 err
= netdev_set_master(port_dev
, dev
);
1059 netdev_err(dev
, "Device %s failed to set master\n", portname
);
1060 goto err_set_master
;
1063 err
= netdev_rx_handler_register(port_dev
, team_handle_frame
,
1066 netdev_err(dev
, "Device %s failed to register rx_handler\n",
1068 goto err_handler_register
;
1071 err
= __team_option_inst_add_port(team
, port
);
1073 netdev_err(dev
, "Device %s failed to add per-port options\n",
1075 goto err_option_port_add
;
1079 team_port_enable(team
, port
);
1080 list_add_tail_rcu(&port
->list
, &team
->port_list
);
1081 __team_compute_features(team
);
1082 __team_port_change_port_added(port
, !!netif_carrier_ok(port_dev
));
1083 __team_options_change_check(team
);
1085 netdev_info(dev
, "Port device %s added\n", portname
);
1089 err_option_port_add
:
1090 netdev_rx_handler_unregister(port_dev
);
1092 err_handler_register
:
1093 netdev_set_master(port_dev
, NULL
);
1096 team_port_disable_netpoll(port
);
1099 vlan_vids_del_by_dev(port_dev
, dev
);
1102 dev_close(port_dev
);
1105 team_port_leave(team
, port
);
1106 team_port_set_orig_dev_addr(port
);
1109 dev_set_mtu(port_dev
, port
->orig
.mtu
);
1117 static void __team_port_change_port_removed(struct team_port
*port
);
1119 static int team_port_del(struct team
*team
, struct net_device
*port_dev
)
1121 struct net_device
*dev
= team
->dev
;
1122 struct team_port
*port
;
1123 char *portname
= port_dev
->name
;
1125 port
= team_port_get_rtnl(port_dev
);
1126 if (!port
|| !team_port_find(team
, port
)) {
1127 netdev_err(dev
, "Device %s does not act as a port of this team\n",
1132 __team_option_inst_mark_removed_port(team
, port
);
1133 __team_options_change_check(team
);
1134 __team_option_inst_del_port(team
, port
);
1135 __team_port_change_port_removed(port
);
1136 team_port_disable(team
, port
);
1137 list_del_rcu(&port
->list
);
1138 netdev_rx_handler_unregister(port_dev
);
1139 netdev_set_master(port_dev
, NULL
);
1140 team_port_disable_netpoll(port
);
1141 vlan_vids_del_by_dev(port_dev
, dev
);
1142 dev_close(port_dev
);
1143 team_port_leave(team
, port
);
1144 team_port_set_orig_dev_addr(port
);
1145 dev_set_mtu(port_dev
, port
->orig
.mtu
);
1148 netdev_info(dev
, "Port device %s removed\n", portname
);
1149 __team_compute_features(team
);
1159 static int team_mode_option_get(struct team
*team
, struct team_gsetter_ctx
*ctx
)
1161 ctx
->data
.str_val
= team
->mode
->kind
;
1165 static int team_mode_option_set(struct team
*team
, struct team_gsetter_ctx
*ctx
)
1167 return team_change_mode(team
, ctx
->data
.str_val
);
1170 static int team_port_en_option_get(struct team
*team
,
1171 struct team_gsetter_ctx
*ctx
)
1173 struct team_port
*port
= ctx
->info
->port
;
1175 ctx
->data
.bool_val
= team_port_enabled(port
);
1179 static int team_port_en_option_set(struct team
*team
,
1180 struct team_gsetter_ctx
*ctx
)
1182 struct team_port
*port
= ctx
->info
->port
;
1184 if (ctx
->data
.bool_val
)
1185 team_port_enable(team
, port
);
1187 team_port_disable(team
, port
);
1191 static int team_user_linkup_option_get(struct team
*team
,
1192 struct team_gsetter_ctx
*ctx
)
1194 struct team_port
*port
= ctx
->info
->port
;
1196 ctx
->data
.bool_val
= port
->user
.linkup
;
1200 static int team_user_linkup_option_set(struct team
*team
,
1201 struct team_gsetter_ctx
*ctx
)
1203 struct team_port
*port
= ctx
->info
->port
;
1205 port
->user
.linkup
= ctx
->data
.bool_val
;
1206 team_refresh_port_linkup(port
);
1210 static int team_user_linkup_en_option_get(struct team
*team
,
1211 struct team_gsetter_ctx
*ctx
)
1213 struct team_port
*port
= ctx
->info
->port
;
1215 ctx
->data
.bool_val
= port
->user
.linkup_enabled
;
1219 static int team_user_linkup_en_option_set(struct team
*team
,
1220 struct team_gsetter_ctx
*ctx
)
1222 struct team_port
*port
= ctx
->info
->port
;
1224 port
->user
.linkup_enabled
= ctx
->data
.bool_val
;
1225 team_refresh_port_linkup(port
);
1229 static int team_priority_option_get(struct team
*team
,
1230 struct team_gsetter_ctx
*ctx
)
1232 struct team_port
*port
= ctx
->info
->port
;
1234 ctx
->data
.s32_val
= port
->priority
;
1238 static int team_priority_option_set(struct team
*team
,
1239 struct team_gsetter_ctx
*ctx
)
1241 struct team_port
*port
= ctx
->info
->port
;
1243 port
->priority
= ctx
->data
.s32_val
;
1244 team_queue_override_port_refresh(team
, port
);
1248 static int team_queue_id_option_get(struct team
*team
,
1249 struct team_gsetter_ctx
*ctx
)
1251 struct team_port
*port
= ctx
->info
->port
;
1253 ctx
->data
.u32_val
= port
->queue_id
;
1257 static int team_queue_id_option_set(struct team
*team
,
1258 struct team_gsetter_ctx
*ctx
)
1260 struct team_port
*port
= ctx
->info
->port
;
1262 if (port
->queue_id
== ctx
->data
.u32_val
)
1264 if (ctx
->data
.u32_val
>= team
->dev
->real_num_tx_queues
)
1266 port
->queue_id
= ctx
->data
.u32_val
;
1267 team_queue_override_port_refresh(team
, port
);
1272 static const struct team_option team_options
[] = {
1275 .type
= TEAM_OPTION_TYPE_STRING
,
1276 .getter
= team_mode_option_get
,
1277 .setter
= team_mode_option_set
,
1281 .type
= TEAM_OPTION_TYPE_BOOL
,
1283 .getter
= team_port_en_option_get
,
1284 .setter
= team_port_en_option_set
,
1287 .name
= "user_linkup",
1288 .type
= TEAM_OPTION_TYPE_BOOL
,
1290 .getter
= team_user_linkup_option_get
,
1291 .setter
= team_user_linkup_option_set
,
1294 .name
= "user_linkup_enabled",
1295 .type
= TEAM_OPTION_TYPE_BOOL
,
1297 .getter
= team_user_linkup_en_option_get
,
1298 .setter
= team_user_linkup_en_option_set
,
1302 .type
= TEAM_OPTION_TYPE_S32
,
1304 .getter
= team_priority_option_get
,
1305 .setter
= team_priority_option_set
,
1309 .type
= TEAM_OPTION_TYPE_U32
,
1311 .getter
= team_queue_id_option_get
,
1312 .setter
= team_queue_id_option_set
,
1316 static struct lock_class_key team_netdev_xmit_lock_key
;
1317 static struct lock_class_key team_netdev_addr_lock_key
;
1318 static struct lock_class_key team_tx_busylock_key
;
1320 static void team_set_lockdep_class_one(struct net_device
*dev
,
1321 struct netdev_queue
*txq
,
1324 lockdep_set_class(&txq
->_xmit_lock
, &team_netdev_xmit_lock_key
);
1327 static void team_set_lockdep_class(struct net_device
*dev
)
1329 lockdep_set_class(&dev
->addr_list_lock
, &team_netdev_addr_lock_key
);
1330 netdev_for_each_tx_queue(dev
, team_set_lockdep_class_one
, NULL
);
1331 dev
->qdisc_tx_busylock
= &team_tx_busylock_key
;
1334 static int team_init(struct net_device
*dev
)
1336 struct team
*team
= netdev_priv(dev
);
1341 mutex_init(&team
->lock
);
1342 team_set_no_mode(team
);
1344 team
->pcpu_stats
= alloc_percpu(struct team_pcpu_stats
);
1345 if (!team
->pcpu_stats
)
1348 for (i
= 0; i
< TEAM_PORT_HASHENTRIES
; i
++)
1349 INIT_HLIST_HEAD(&team
->en_port_hlist
[i
]);
1350 INIT_LIST_HEAD(&team
->port_list
);
1351 err
= team_queue_override_init(team
);
1353 goto err_team_queue_override_init
;
1355 team_adjust_ops(team
);
1357 INIT_LIST_HEAD(&team
->option_list
);
1358 INIT_LIST_HEAD(&team
->option_inst_list
);
1359 err
= team_options_register(team
, team_options
, ARRAY_SIZE(team_options
));
1361 goto err_options_register
;
1362 netif_carrier_off(dev
);
1364 team_set_lockdep_class(dev
);
1368 err_options_register
:
1369 team_queue_override_fini(team
);
1370 err_team_queue_override_init
:
1371 free_percpu(team
->pcpu_stats
);
1376 static void team_uninit(struct net_device
*dev
)
1378 struct team
*team
= netdev_priv(dev
);
1379 struct team_port
*port
;
1380 struct team_port
*tmp
;
1382 mutex_lock(&team
->lock
);
1383 list_for_each_entry_safe(port
, tmp
, &team
->port_list
, list
)
1384 team_port_del(team
, port
->dev
);
1386 __team_change_mode(team
, NULL
); /* cleanup */
1387 __team_options_unregister(team
, team_options
, ARRAY_SIZE(team_options
));
1388 team_queue_override_fini(team
);
1389 mutex_unlock(&team
->lock
);
1392 static void team_destructor(struct net_device
*dev
)
1394 struct team
*team
= netdev_priv(dev
);
1396 free_percpu(team
->pcpu_stats
);
1400 static int team_open(struct net_device
*dev
)
1402 netif_carrier_on(dev
);
1406 static int team_close(struct net_device
*dev
)
1408 netif_carrier_off(dev
);
1413 * note: already called with rcu_read_lock
1415 static netdev_tx_t
team_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1417 struct team
*team
= netdev_priv(dev
);
1419 unsigned int len
= skb
->len
;
1421 tx_success
= team_queue_override_transmit(team
, skb
);
1423 tx_success
= team
->ops
.transmit(team
, skb
);
1425 struct team_pcpu_stats
*pcpu_stats
;
1427 pcpu_stats
= this_cpu_ptr(team
->pcpu_stats
);
1428 u64_stats_update_begin(&pcpu_stats
->syncp
);
1429 pcpu_stats
->tx_packets
++;
1430 pcpu_stats
->tx_bytes
+= len
;
1431 u64_stats_update_end(&pcpu_stats
->syncp
);
1433 this_cpu_inc(team
->pcpu_stats
->tx_dropped
);
1436 return NETDEV_TX_OK
;
1439 static u16
team_select_queue(struct net_device
*dev
, struct sk_buff
*skb
)
1442 * This helper function exists to help dev_pick_tx get the correct
1443 * destination queue. Using a helper function skips a call to
1444 * skb_tx_hash and will put the skbs in the queue we expect on their
1445 * way down to the team driver.
1447 u16 txq
= skb_rx_queue_recorded(skb
) ? skb_get_rx_queue(skb
) : 0;
1450 * Save the original txq to restore before passing to the driver
1452 qdisc_skb_cb(skb
)->slave_dev_queue_mapping
= skb
->queue_mapping
;
1454 if (unlikely(txq
>= dev
->real_num_tx_queues
)) {
1456 txq
-= dev
->real_num_tx_queues
;
1457 } while (txq
>= dev
->real_num_tx_queues
);
1462 static void team_change_rx_flags(struct net_device
*dev
, int change
)
1464 struct team
*team
= netdev_priv(dev
);
1465 struct team_port
*port
;
1469 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1470 if (change
& IFF_PROMISC
) {
1471 inc
= dev
->flags
& IFF_PROMISC
? 1 : -1;
1472 dev_set_promiscuity(port
->dev
, inc
);
1474 if (change
& IFF_ALLMULTI
) {
1475 inc
= dev
->flags
& IFF_ALLMULTI
? 1 : -1;
1476 dev_set_allmulti(port
->dev
, inc
);
1482 static void team_set_rx_mode(struct net_device
*dev
)
1484 struct team
*team
= netdev_priv(dev
);
1485 struct team_port
*port
;
1488 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1489 dev_uc_sync(port
->dev
, dev
);
1490 dev_mc_sync(port
->dev
, dev
);
1495 static int team_set_mac_address(struct net_device
*dev
, void *p
)
1497 struct sockaddr
*addr
= p
;
1498 struct team
*team
= netdev_priv(dev
);
1499 struct team_port
*port
;
1501 if (dev
->type
== ARPHRD_ETHER
&& !is_valid_ether_addr(addr
->sa_data
))
1502 return -EADDRNOTAVAIL
;
1503 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1504 dev
->addr_assign_type
&= ~NET_ADDR_RANDOM
;
1506 list_for_each_entry_rcu(port
, &team
->port_list
, list
)
1507 if (team
->ops
.port_change_dev_addr
)
1508 team
->ops
.port_change_dev_addr(team
, port
);
1513 static int team_change_mtu(struct net_device
*dev
, int new_mtu
)
1515 struct team
*team
= netdev_priv(dev
);
1516 struct team_port
*port
;
1520 * Alhough this is reader, it's guarded by team lock. It's not possible
1521 * to traverse list in reverse under rcu_read_lock
1523 mutex_lock(&team
->lock
);
1524 list_for_each_entry(port
, &team
->port_list
, list
) {
1525 err
= dev_set_mtu(port
->dev
, new_mtu
);
1527 netdev_err(dev
, "Device %s failed to change mtu",
1532 mutex_unlock(&team
->lock
);
1539 list_for_each_entry_continue_reverse(port
, &team
->port_list
, list
)
1540 dev_set_mtu(port
->dev
, dev
->mtu
);
1541 mutex_unlock(&team
->lock
);
1546 static struct rtnl_link_stats64
*
1547 team_get_stats64(struct net_device
*dev
, struct rtnl_link_stats64
*stats
)
1549 struct team
*team
= netdev_priv(dev
);
1550 struct team_pcpu_stats
*p
;
1551 u64 rx_packets
, rx_bytes
, rx_multicast
, tx_packets
, tx_bytes
;
1552 u32 rx_dropped
= 0, tx_dropped
= 0;
1556 for_each_possible_cpu(i
) {
1557 p
= per_cpu_ptr(team
->pcpu_stats
, i
);
1559 start
= u64_stats_fetch_begin_bh(&p
->syncp
);
1560 rx_packets
= p
->rx_packets
;
1561 rx_bytes
= p
->rx_bytes
;
1562 rx_multicast
= p
->rx_multicast
;
1563 tx_packets
= p
->tx_packets
;
1564 tx_bytes
= p
->tx_bytes
;
1565 } while (u64_stats_fetch_retry_bh(&p
->syncp
, start
));
1567 stats
->rx_packets
+= rx_packets
;
1568 stats
->rx_bytes
+= rx_bytes
;
1569 stats
->multicast
+= rx_multicast
;
1570 stats
->tx_packets
+= tx_packets
;
1571 stats
->tx_bytes
+= tx_bytes
;
1573 * rx_dropped & tx_dropped are u32, updated
1574 * without syncp protection.
1576 rx_dropped
+= p
->rx_dropped
;
1577 tx_dropped
+= p
->tx_dropped
;
1579 stats
->rx_dropped
= rx_dropped
;
1580 stats
->tx_dropped
= tx_dropped
;
1584 static int team_vlan_rx_add_vid(struct net_device
*dev
, uint16_t vid
)
1586 struct team
*team
= netdev_priv(dev
);
1587 struct team_port
*port
;
1591 * Alhough this is reader, it's guarded by team lock. It's not possible
1592 * to traverse list in reverse under rcu_read_lock
1594 mutex_lock(&team
->lock
);
1595 list_for_each_entry(port
, &team
->port_list
, list
) {
1596 err
= vlan_vid_add(port
->dev
, vid
);
1600 mutex_unlock(&team
->lock
);
1605 list_for_each_entry_continue_reverse(port
, &team
->port_list
, list
)
1606 vlan_vid_del(port
->dev
, vid
);
1607 mutex_unlock(&team
->lock
);
1612 static int team_vlan_rx_kill_vid(struct net_device
*dev
, uint16_t vid
)
1614 struct team
*team
= netdev_priv(dev
);
1615 struct team_port
*port
;
1618 list_for_each_entry_rcu(port
, &team
->port_list
, list
)
1619 vlan_vid_del(port
->dev
, vid
);
1625 #ifdef CONFIG_NET_POLL_CONTROLLER
1626 static void team_poll_controller(struct net_device
*dev
)
1630 static void __team_netpoll_cleanup(struct team
*team
)
1632 struct team_port
*port
;
1634 list_for_each_entry(port
, &team
->port_list
, list
)
1635 team_port_disable_netpoll(port
);
1638 static void team_netpoll_cleanup(struct net_device
*dev
)
1640 struct team
*team
= netdev_priv(dev
);
1642 mutex_lock(&team
->lock
);
1643 __team_netpoll_cleanup(team
);
1644 mutex_unlock(&team
->lock
);
1647 static int team_netpoll_setup(struct net_device
*dev
,
1648 struct netpoll_info
*npifo
, gfp_t gfp
)
1650 struct team
*team
= netdev_priv(dev
);
1651 struct team_port
*port
;
1654 mutex_lock(&team
->lock
);
1655 list_for_each_entry(port
, &team
->port_list
, list
) {
1656 err
= team_port_enable_netpoll(team
, port
, gfp
);
1658 __team_netpoll_cleanup(team
);
1662 mutex_unlock(&team
->lock
);
1667 static int team_add_slave(struct net_device
*dev
, struct net_device
*port_dev
)
1669 struct team
*team
= netdev_priv(dev
);
1672 mutex_lock(&team
->lock
);
1673 err
= team_port_add(team
, port_dev
);
1674 mutex_unlock(&team
->lock
);
1678 static int team_del_slave(struct net_device
*dev
, struct net_device
*port_dev
)
1680 struct team
*team
= netdev_priv(dev
);
1683 mutex_lock(&team
->lock
);
1684 err
= team_port_del(team
, port_dev
);
1685 mutex_unlock(&team
->lock
);
1689 static netdev_features_t
team_fix_features(struct net_device
*dev
,
1690 netdev_features_t features
)
1692 struct team_port
*port
;
1693 struct team
*team
= netdev_priv(dev
);
1694 netdev_features_t mask
;
1697 features
&= ~NETIF_F_ONE_FOR_ALL
;
1698 features
|= NETIF_F_ALL_FOR_ALL
;
1701 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1702 features
= netdev_increment_features(features
,
1703 port
->dev
->features
,
1710 static const struct net_device_ops team_netdev_ops
= {
1711 .ndo_init
= team_init
,
1712 .ndo_uninit
= team_uninit
,
1713 .ndo_open
= team_open
,
1714 .ndo_stop
= team_close
,
1715 .ndo_start_xmit
= team_xmit
,
1716 .ndo_select_queue
= team_select_queue
,
1717 .ndo_change_rx_flags
= team_change_rx_flags
,
1718 .ndo_set_rx_mode
= team_set_rx_mode
,
1719 .ndo_set_mac_address
= team_set_mac_address
,
1720 .ndo_change_mtu
= team_change_mtu
,
1721 .ndo_get_stats64
= team_get_stats64
,
1722 .ndo_vlan_rx_add_vid
= team_vlan_rx_add_vid
,
1723 .ndo_vlan_rx_kill_vid
= team_vlan_rx_kill_vid
,
1724 #ifdef CONFIG_NET_POLL_CONTROLLER
1725 .ndo_poll_controller
= team_poll_controller
,
1726 .ndo_netpoll_setup
= team_netpoll_setup
,
1727 .ndo_netpoll_cleanup
= team_netpoll_cleanup
,
1729 .ndo_add_slave
= team_add_slave
,
1730 .ndo_del_slave
= team_del_slave
,
1731 .ndo_fix_features
= team_fix_features
,
1735 /***********************
1736 * rt netlink interface
1737 ***********************/
1739 static void team_setup_by_port(struct net_device
*dev
,
1740 struct net_device
*port_dev
)
1742 dev
->header_ops
= port_dev
->header_ops
;
1743 dev
->type
= port_dev
->type
;
1744 dev
->hard_header_len
= port_dev
->hard_header_len
;
1745 dev
->addr_len
= port_dev
->addr_len
;
1746 dev
->mtu
= port_dev
->mtu
;
1747 memcpy(dev
->broadcast
, port_dev
->broadcast
, port_dev
->addr_len
);
1748 memcpy(dev
->dev_addr
, port_dev
->dev_addr
, port_dev
->addr_len
);
1749 dev
->addr_assign_type
&= ~NET_ADDR_RANDOM
;
1752 static int team_dev_type_check_change(struct net_device
*dev
,
1753 struct net_device
*port_dev
)
1755 struct team
*team
= netdev_priv(dev
);
1756 char *portname
= port_dev
->name
;
1759 if (dev
->type
== port_dev
->type
)
1761 if (!list_empty(&team
->port_list
)) {
1762 netdev_err(dev
, "Device %s is of different type\n", portname
);
1765 err
= call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE
, dev
);
1766 err
= notifier_to_errno(err
);
1768 netdev_err(dev
, "Refused to change device type\n");
1773 team_setup_by_port(dev
, port_dev
);
1774 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE
, dev
);
1778 static void team_setup(struct net_device
*dev
)
1782 dev
->netdev_ops
= &team_netdev_ops
;
1783 dev
->destructor
= team_destructor
;
1784 dev
->tx_queue_len
= 0;
1785 dev
->flags
|= IFF_MULTICAST
;
1786 dev
->priv_flags
&= ~(IFF_XMIT_DST_RELEASE
| IFF_TX_SKB_SHARING
);
1789 * Indicate we support unicast address filtering. That way core won't
1790 * bring us to promisc mode in case a unicast addr is added.
1791 * Let this up to underlay drivers.
1793 dev
->priv_flags
|= IFF_UNICAST_FLT
| IFF_LIVE_ADDR_CHANGE
;
1795 dev
->features
|= NETIF_F_LLTX
;
1796 dev
->features
|= NETIF_F_GRO
;
1797 dev
->hw_features
= NETIF_F_HW_VLAN_TX
|
1798 NETIF_F_HW_VLAN_RX
|
1799 NETIF_F_HW_VLAN_FILTER
;
1801 dev
->features
|= dev
->hw_features
;
1804 static int team_newlink(struct net
*src_net
, struct net_device
*dev
,
1805 struct nlattr
*tb
[], struct nlattr
*data
[])
1809 if (tb
[IFLA_ADDRESS
] == NULL
)
1810 eth_hw_addr_random(dev
);
1812 err
= register_netdevice(dev
);
1819 static int team_validate(struct nlattr
*tb
[], struct nlattr
*data
[])
1821 if (tb
[IFLA_ADDRESS
]) {
1822 if (nla_len(tb
[IFLA_ADDRESS
]) != ETH_ALEN
)
1824 if (!is_valid_ether_addr(nla_data(tb
[IFLA_ADDRESS
])))
1825 return -EADDRNOTAVAIL
;
1830 static unsigned int team_get_num_tx_queues(void)
1832 return TEAM_DEFAULT_NUM_TX_QUEUES
;
1835 static unsigned int team_get_num_rx_queues(void)
1837 return TEAM_DEFAULT_NUM_RX_QUEUES
;
1840 static struct rtnl_link_ops team_link_ops __read_mostly
= {
1842 .priv_size
= sizeof(struct team
),
1843 .setup
= team_setup
,
1844 .newlink
= team_newlink
,
1845 .validate
= team_validate
,
1846 .get_num_tx_queues
= team_get_num_tx_queues
,
1847 .get_num_rx_queues
= team_get_num_rx_queues
,
1851 /***********************************
1852 * Generic netlink custom interface
1853 ***********************************/
1855 static struct genl_family team_nl_family
= {
1856 .id
= GENL_ID_GENERATE
,
1857 .name
= TEAM_GENL_NAME
,
1858 .version
= TEAM_GENL_VERSION
,
1859 .maxattr
= TEAM_ATTR_MAX
,
1863 static const struct nla_policy team_nl_policy
[TEAM_ATTR_MAX
+ 1] = {
1864 [TEAM_ATTR_UNSPEC
] = { .type
= NLA_UNSPEC
, },
1865 [TEAM_ATTR_TEAM_IFINDEX
] = { .type
= NLA_U32
},
1866 [TEAM_ATTR_LIST_OPTION
] = { .type
= NLA_NESTED
},
1867 [TEAM_ATTR_LIST_PORT
] = { .type
= NLA_NESTED
},
1870 static const struct nla_policy
1871 team_nl_option_policy
[TEAM_ATTR_OPTION_MAX
+ 1] = {
1872 [TEAM_ATTR_OPTION_UNSPEC
] = { .type
= NLA_UNSPEC
, },
1873 [TEAM_ATTR_OPTION_NAME
] = {
1875 .len
= TEAM_STRING_MAX_LEN
,
1877 [TEAM_ATTR_OPTION_CHANGED
] = { .type
= NLA_FLAG
},
1878 [TEAM_ATTR_OPTION_TYPE
] = { .type
= NLA_U8
},
1879 [TEAM_ATTR_OPTION_DATA
] = { .type
= NLA_BINARY
},
1882 static int team_nl_cmd_noop(struct sk_buff
*skb
, struct genl_info
*info
)
1884 struct sk_buff
*msg
;
1888 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
1892 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
,
1893 &team_nl_family
, 0, TEAM_CMD_NOOP
);
1899 genlmsg_end(msg
, hdr
);
1901 return genlmsg_unicast(genl_info_net(info
), msg
, info
->snd_portid
);
1910 * Netlink cmd functions should be locked by following two functions.
1911 * Since dev gets held here, that ensures dev won't disappear in between.
1913 static struct team
*team_nl_team_get(struct genl_info
*info
)
1915 struct net
*net
= genl_info_net(info
);
1917 struct net_device
*dev
;
1920 if (!info
->attrs
[TEAM_ATTR_TEAM_IFINDEX
])
1923 ifindex
= nla_get_u32(info
->attrs
[TEAM_ATTR_TEAM_IFINDEX
]);
1924 dev
= dev_get_by_index(net
, ifindex
);
1925 if (!dev
|| dev
->netdev_ops
!= &team_netdev_ops
) {
1931 team
= netdev_priv(dev
);
1932 mutex_lock(&team
->lock
);
1936 static void team_nl_team_put(struct team
*team
)
1938 mutex_unlock(&team
->lock
);
1942 static int team_nl_send_generic(struct genl_info
*info
, struct team
*team
,
1943 int (*fill_func
)(struct sk_buff
*skb
,
1944 struct genl_info
*info
,
1945 int flags
, struct team
*team
))
1947 struct sk_buff
*skb
;
1950 skb
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
1954 err
= fill_func(skb
, info
, NLM_F_ACK
, team
);
1958 err
= genlmsg_unicast(genl_info_net(info
), skb
, info
->snd_portid
);
1966 typedef int team_nl_send_func_t(struct sk_buff
*skb
,
1967 struct team
*team
, u32 portid
);
1969 static int team_nl_send_unicast(struct sk_buff
*skb
, struct team
*team
, u32 portid
)
1971 return genlmsg_unicast(dev_net(team
->dev
), skb
, portid
);
1974 static int team_nl_fill_one_option_get(struct sk_buff
*skb
, struct team
*team
,
1975 struct team_option_inst
*opt_inst
)
1977 struct nlattr
*option_item
;
1978 struct team_option
*option
= opt_inst
->option
;
1979 struct team_option_inst_info
*opt_inst_info
= &opt_inst
->info
;
1980 struct team_gsetter_ctx ctx
;
1983 ctx
.info
= opt_inst_info
;
1984 err
= team_option_get(team
, opt_inst
, &ctx
);
1988 option_item
= nla_nest_start(skb
, TEAM_ATTR_ITEM_OPTION
);
1992 if (nla_put_string(skb
, TEAM_ATTR_OPTION_NAME
, option
->name
))
1994 if (opt_inst_info
->port
&&
1995 nla_put_u32(skb
, TEAM_ATTR_OPTION_PORT_IFINDEX
,
1996 opt_inst_info
->port
->dev
->ifindex
))
1998 if (opt_inst
->option
->array_size
&&
1999 nla_put_u32(skb
, TEAM_ATTR_OPTION_ARRAY_INDEX
,
2000 opt_inst_info
->array_index
))
2003 switch (option
->type
) {
2004 case TEAM_OPTION_TYPE_U32
:
2005 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_U32
))
2007 if (nla_put_u32(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.u32_val
))
2010 case TEAM_OPTION_TYPE_STRING
:
2011 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_STRING
))
2013 if (nla_put_string(skb
, TEAM_ATTR_OPTION_DATA
,
2017 case TEAM_OPTION_TYPE_BINARY
:
2018 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_BINARY
))
2020 if (nla_put(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.bin_val
.len
,
2021 ctx
.data
.bin_val
.ptr
))
2024 case TEAM_OPTION_TYPE_BOOL
:
2025 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_FLAG
))
2027 if (ctx
.data
.bool_val
&&
2028 nla_put_flag(skb
, TEAM_ATTR_OPTION_DATA
))
2031 case TEAM_OPTION_TYPE_S32
:
2032 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_S32
))
2034 if (nla_put_s32(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.s32_val
))
2040 if (opt_inst
->removed
&& nla_put_flag(skb
, TEAM_ATTR_OPTION_REMOVED
))
2042 if (opt_inst
->changed
) {
2043 if (nla_put_flag(skb
, TEAM_ATTR_OPTION_CHANGED
))
2045 opt_inst
->changed
= false;
2047 nla_nest_end(skb
, option_item
);
2051 nla_nest_cancel(skb
, option_item
);
2055 static int __send_and_alloc_skb(struct sk_buff
**pskb
,
2056 struct team
*team
, u32 portid
,
2057 team_nl_send_func_t
*send_func
)
2062 err
= send_func(*pskb
, team
, portid
);
2066 *pskb
= genlmsg_new(GENLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2072 static int team_nl_send_options_get(struct team
*team
, u32 portid
, u32 seq
,
2073 int flags
, team_nl_send_func_t
*send_func
,
2074 struct list_head
*sel_opt_inst_list
)
2076 struct nlattr
*option_list
;
2077 struct nlmsghdr
*nlh
;
2079 struct team_option_inst
*opt_inst
;
2081 struct sk_buff
*skb
= NULL
;
2085 opt_inst
= list_first_entry(sel_opt_inst_list
,
2086 struct team_option_inst
, tmp_list
);
2089 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2093 hdr
= genlmsg_put(skb
, portid
, seq
, &team_nl_family
, flags
| NLM_F_MULTI
,
2094 TEAM_CMD_OPTIONS_GET
);
2098 if (nla_put_u32(skb
, TEAM_ATTR_TEAM_IFINDEX
, team
->dev
->ifindex
))
2099 goto nla_put_failure
;
2100 option_list
= nla_nest_start(skb
, TEAM_ATTR_LIST_OPTION
);
2102 goto nla_put_failure
;
2106 list_for_each_entry_from(opt_inst
, sel_opt_inst_list
, tmp_list
) {
2107 err
= team_nl_fill_one_option_get(skb
, team
, opt_inst
);
2109 if (err
== -EMSGSIZE
) {
2120 nla_nest_end(skb
, option_list
);
2121 genlmsg_end(skb
, hdr
);
2126 nlh
= nlmsg_put(skb
, portid
, seq
, NLMSG_DONE
, 0, flags
| NLM_F_MULTI
);
2128 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2134 return send_func(skb
, team
, portid
);
2139 genlmsg_cancel(skb
, hdr
);
2144 static int team_nl_cmd_options_get(struct sk_buff
*skb
, struct genl_info
*info
)
2147 struct team_option_inst
*opt_inst
;
2149 LIST_HEAD(sel_opt_inst_list
);
2151 team
= team_nl_team_get(info
);
2155 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
)
2156 list_add_tail(&opt_inst
->tmp_list
, &sel_opt_inst_list
);
2157 err
= team_nl_send_options_get(team
, info
->snd_portid
, info
->snd_seq
,
2158 NLM_F_ACK
, team_nl_send_unicast
,
2159 &sel_opt_inst_list
);
2161 team_nl_team_put(team
);
2166 static int team_nl_send_event_options_get(struct team
*team
,
2167 struct list_head
*sel_opt_inst_list
);
2169 static int team_nl_cmd_options_set(struct sk_buff
*skb
, struct genl_info
*info
)
2174 struct nlattr
*nl_option
;
2175 LIST_HEAD(opt_inst_list
);
2177 team
= team_nl_team_get(info
);
2182 if (!info
->attrs
[TEAM_ATTR_LIST_OPTION
]) {
2187 nla_for_each_nested(nl_option
, info
->attrs
[TEAM_ATTR_LIST_OPTION
], i
) {
2188 struct nlattr
*opt_attrs
[TEAM_ATTR_OPTION_MAX
+ 1];
2189 struct nlattr
*attr
;
2190 struct nlattr
*attr_data
;
2191 enum team_option_type opt_type
;
2192 int opt_port_ifindex
= 0; /* != 0 for per-port options */
2193 u32 opt_array_index
= 0;
2194 bool opt_is_array
= false;
2195 struct team_option_inst
*opt_inst
;
2197 bool opt_found
= false;
2199 if (nla_type(nl_option
) != TEAM_ATTR_ITEM_OPTION
) {
2203 err
= nla_parse_nested(opt_attrs
, TEAM_ATTR_OPTION_MAX
,
2204 nl_option
, team_nl_option_policy
);
2207 if (!opt_attrs
[TEAM_ATTR_OPTION_NAME
] ||
2208 !opt_attrs
[TEAM_ATTR_OPTION_TYPE
]) {
2212 switch (nla_get_u8(opt_attrs
[TEAM_ATTR_OPTION_TYPE
])) {
2214 opt_type
= TEAM_OPTION_TYPE_U32
;
2217 opt_type
= TEAM_OPTION_TYPE_STRING
;
2220 opt_type
= TEAM_OPTION_TYPE_BINARY
;
2223 opt_type
= TEAM_OPTION_TYPE_BOOL
;
2226 opt_type
= TEAM_OPTION_TYPE_S32
;
2232 attr_data
= opt_attrs
[TEAM_ATTR_OPTION_DATA
];
2233 if (opt_type
!= TEAM_OPTION_TYPE_BOOL
&& !attr_data
) {
2238 opt_name
= nla_data(opt_attrs
[TEAM_ATTR_OPTION_NAME
]);
2239 attr
= opt_attrs
[TEAM_ATTR_OPTION_PORT_IFINDEX
];
2241 opt_port_ifindex
= nla_get_u32(attr
);
2243 attr
= opt_attrs
[TEAM_ATTR_OPTION_ARRAY_INDEX
];
2245 opt_is_array
= true;
2246 opt_array_index
= nla_get_u32(attr
);
2249 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
2250 struct team_option
*option
= opt_inst
->option
;
2251 struct team_gsetter_ctx ctx
;
2252 struct team_option_inst_info
*opt_inst_info
;
2255 opt_inst_info
= &opt_inst
->info
;
2256 tmp_ifindex
= opt_inst_info
->port
?
2257 opt_inst_info
->port
->dev
->ifindex
: 0;
2258 if (option
->type
!= opt_type
||
2259 strcmp(option
->name
, opt_name
) ||
2260 tmp_ifindex
!= opt_port_ifindex
||
2261 (option
->array_size
&& !opt_is_array
) ||
2262 opt_inst_info
->array_index
!= opt_array_index
)
2265 ctx
.info
= opt_inst_info
;
2267 case TEAM_OPTION_TYPE_U32
:
2268 ctx
.data
.u32_val
= nla_get_u32(attr_data
);
2270 case TEAM_OPTION_TYPE_STRING
:
2271 if (nla_len(attr_data
) > TEAM_STRING_MAX_LEN
) {
2275 ctx
.data
.str_val
= nla_data(attr_data
);
2277 case TEAM_OPTION_TYPE_BINARY
:
2278 ctx
.data
.bin_val
.len
= nla_len(attr_data
);
2279 ctx
.data
.bin_val
.ptr
= nla_data(attr_data
);
2281 case TEAM_OPTION_TYPE_BOOL
:
2282 ctx
.data
.bool_val
= attr_data
? true : false;
2284 case TEAM_OPTION_TYPE_S32
:
2285 ctx
.data
.s32_val
= nla_get_s32(attr_data
);
2290 err
= team_option_set(team
, opt_inst
, &ctx
);
2293 opt_inst
->changed
= true;
2294 list_add(&opt_inst
->tmp_list
, &opt_inst_list
);
2302 err
= team_nl_send_event_options_get(team
, &opt_inst_list
);
2305 team_nl_team_put(team
);
2310 static int team_nl_fill_port_list_get(struct sk_buff
*skb
,
2311 u32 portid
, u32 seq
, int flags
,
2315 struct nlattr
*port_list
;
2317 struct team_port
*port
;
2319 hdr
= genlmsg_put(skb
, portid
, seq
, &team_nl_family
, flags
,
2320 TEAM_CMD_PORT_LIST_GET
);
2324 if (nla_put_u32(skb
, TEAM_ATTR_TEAM_IFINDEX
, team
->dev
->ifindex
))
2325 goto nla_put_failure
;
2326 port_list
= nla_nest_start(skb
, TEAM_ATTR_LIST_PORT
);
2328 goto nla_put_failure
;
2330 list_for_each_entry(port
, &team
->port_list
, list
) {
2331 struct nlattr
*port_item
;
2333 /* Include only changed ports if fill all mode is not on */
2334 if (!fillall
&& !port
->changed
)
2336 port_item
= nla_nest_start(skb
, TEAM_ATTR_ITEM_PORT
);
2338 goto nla_put_failure
;
2339 if (nla_put_u32(skb
, TEAM_ATTR_PORT_IFINDEX
, port
->dev
->ifindex
))
2340 goto nla_put_failure
;
2341 if (port
->changed
) {
2342 if (nla_put_flag(skb
, TEAM_ATTR_PORT_CHANGED
))
2343 goto nla_put_failure
;
2344 port
->changed
= false;
2346 if ((port
->removed
&&
2347 nla_put_flag(skb
, TEAM_ATTR_PORT_REMOVED
)) ||
2348 (port
->state
.linkup
&&
2349 nla_put_flag(skb
, TEAM_ATTR_PORT_LINKUP
)) ||
2350 nla_put_u32(skb
, TEAM_ATTR_PORT_SPEED
, port
->state
.speed
) ||
2351 nla_put_u8(skb
, TEAM_ATTR_PORT_DUPLEX
, port
->state
.duplex
))
2352 goto nla_put_failure
;
2353 nla_nest_end(skb
, port_item
);
2356 nla_nest_end(skb
, port_list
);
2357 return genlmsg_end(skb
, hdr
);
2360 genlmsg_cancel(skb
, hdr
);
2364 static int team_nl_fill_port_list_get_all(struct sk_buff
*skb
,
2365 struct genl_info
*info
, int flags
,
2368 return team_nl_fill_port_list_get(skb
, info
->snd_portid
,
2369 info
->snd_seq
, NLM_F_ACK
,
2373 static int team_nl_cmd_port_list_get(struct sk_buff
*skb
,
2374 struct genl_info
*info
)
2379 team
= team_nl_team_get(info
);
2383 err
= team_nl_send_generic(info
, team
, team_nl_fill_port_list_get_all
);
2385 team_nl_team_put(team
);
2390 static struct genl_ops team_nl_ops
[] = {
2392 .cmd
= TEAM_CMD_NOOP
,
2393 .doit
= team_nl_cmd_noop
,
2394 .policy
= team_nl_policy
,
2397 .cmd
= TEAM_CMD_OPTIONS_SET
,
2398 .doit
= team_nl_cmd_options_set
,
2399 .policy
= team_nl_policy
,
2400 .flags
= GENL_ADMIN_PERM
,
2403 .cmd
= TEAM_CMD_OPTIONS_GET
,
2404 .doit
= team_nl_cmd_options_get
,
2405 .policy
= team_nl_policy
,
2406 .flags
= GENL_ADMIN_PERM
,
2409 .cmd
= TEAM_CMD_PORT_LIST_GET
,
2410 .doit
= team_nl_cmd_port_list_get
,
2411 .policy
= team_nl_policy
,
2412 .flags
= GENL_ADMIN_PERM
,
2416 static struct genl_multicast_group team_change_event_mcgrp
= {
2417 .name
= TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME
,
2420 static int team_nl_send_multicast(struct sk_buff
*skb
,
2421 struct team
*team
, u32 portid
)
2423 return genlmsg_multicast_netns(dev_net(team
->dev
), skb
, 0,
2424 team_change_event_mcgrp
.id
, GFP_KERNEL
);
2427 static int team_nl_send_event_options_get(struct team
*team
,
2428 struct list_head
*sel_opt_inst_list
)
2430 return team_nl_send_options_get(team
, 0, 0, 0, team_nl_send_multicast
,
2434 static int team_nl_send_event_port_list_get(struct team
*team
)
2436 struct sk_buff
*skb
;
2438 struct net
*net
= dev_net(team
->dev
);
2440 skb
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2444 err
= team_nl_fill_port_list_get(skb
, 0, 0, 0, team
, false);
2448 err
= genlmsg_multicast_netns(net
, skb
, 0, team_change_event_mcgrp
.id
,
2457 static int team_nl_init(void)
2461 err
= genl_register_family_with_ops(&team_nl_family
, team_nl_ops
,
2462 ARRAY_SIZE(team_nl_ops
));
2466 err
= genl_register_mc_group(&team_nl_family
, &team_change_event_mcgrp
);
2468 goto err_change_event_grp_reg
;
2472 err_change_event_grp_reg
:
2473 genl_unregister_family(&team_nl_family
);
2478 static void team_nl_fini(void)
2480 genl_unregister_family(&team_nl_family
);
2488 static void __team_options_change_check(struct team
*team
)
2491 struct team_option_inst
*opt_inst
;
2492 LIST_HEAD(sel_opt_inst_list
);
2494 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
2495 if (opt_inst
->changed
)
2496 list_add_tail(&opt_inst
->tmp_list
, &sel_opt_inst_list
);
2498 err
= team_nl_send_event_options_get(team
, &sel_opt_inst_list
);
2499 if (err
&& err
!= -ESRCH
)
2500 netdev_warn(team
->dev
, "Failed to send options change via netlink (err %d)\n",
2504 /* rtnl lock is held */
2506 static void __team_port_change_send(struct team_port
*port
, bool linkup
)
2510 port
->changed
= true;
2511 port
->state
.linkup
= linkup
;
2512 team_refresh_port_linkup(port
);
2514 struct ethtool_cmd ecmd
;
2516 err
= __ethtool_get_settings(port
->dev
, &ecmd
);
2518 port
->state
.speed
= ethtool_cmd_speed(&ecmd
);
2519 port
->state
.duplex
= ecmd
.duplex
;
2523 port
->state
.speed
= 0;
2524 port
->state
.duplex
= 0;
2527 err
= team_nl_send_event_port_list_get(port
->team
);
2528 if (err
&& err
!= -ESRCH
)
2529 netdev_warn(port
->team
->dev
, "Failed to send port change of device %s via netlink (err %d)\n",
2530 port
->dev
->name
, err
);
2534 static void __team_port_change_check(struct team_port
*port
, bool linkup
)
2536 if (port
->state
.linkup
!= linkup
)
2537 __team_port_change_send(port
, linkup
);
2540 static void __team_port_change_port_added(struct team_port
*port
, bool linkup
)
2542 __team_port_change_send(port
, linkup
);
2545 static void __team_port_change_port_removed(struct team_port
*port
)
2547 port
->removed
= true;
2548 __team_port_change_send(port
, false);
2551 static void team_port_change_check(struct team_port
*port
, bool linkup
)
2553 struct team
*team
= port
->team
;
2555 mutex_lock(&team
->lock
);
2556 __team_port_change_check(port
, linkup
);
2557 mutex_unlock(&team
->lock
);
2561 /************************************
2562 * Net device notifier event handler
2563 ************************************/
2565 static int team_device_event(struct notifier_block
*unused
,
2566 unsigned long event
, void *ptr
)
2568 struct net_device
*dev
= (struct net_device
*) ptr
;
2569 struct team_port
*port
;
2571 port
= team_port_get_rtnl(dev
);
2577 if (netif_carrier_ok(dev
))
2578 team_port_change_check(port
, true);
2580 team_port_change_check(port
, false);
2582 if (netif_running(port
->dev
))
2583 team_port_change_check(port
,
2584 !!netif_carrier_ok(port
->dev
));
2586 case NETDEV_UNREGISTER
:
2587 team_del_slave(port
->team
->dev
, dev
);
2589 case NETDEV_FEAT_CHANGE
:
2590 team_compute_features(port
->team
);
2592 case NETDEV_CHANGEMTU
:
2593 /* Forbid to change mtu of underlaying device */
2595 case NETDEV_PRE_TYPE_CHANGE
:
2596 /* Forbid to change type of underlaying device */
2602 static struct notifier_block team_notifier_block __read_mostly
= {
2603 .notifier_call
= team_device_event
,
2607 /***********************
2608 * Module init and exit
2609 ***********************/
2611 static int __init
team_module_init(void)
2615 register_netdevice_notifier(&team_notifier_block
);
2617 err
= rtnl_link_register(&team_link_ops
);
2621 err
= team_nl_init();
2628 rtnl_link_unregister(&team_link_ops
);
2631 unregister_netdevice_notifier(&team_notifier_block
);
2636 static void __exit
team_module_exit(void)
2639 rtnl_link_unregister(&team_link_ops
);
2640 unregister_netdevice_notifier(&team_notifier_block
);
2643 module_init(team_module_init
);
2644 module_exit(team_module_exit
);
2646 MODULE_LICENSE("GPL v2");
2647 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2648 MODULE_DESCRIPTION("Ethernet team device driver");
2649 MODULE_ALIAS_RTNL_LINK(DRV_NAME
);