2 * drivers/net/team/team.c - Network team device driver
3 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <linux/rcupdate.h>
17 #include <linux/errno.h>
18 #include <linux/ctype.h>
19 #include <linux/notifier.h>
20 #include <linux/netdevice.h>
21 #include <linux/netpoll.h>
22 #include <linux/if_vlan.h>
23 #include <linux/if_arp.h>
24 #include <linux/socket.h>
25 #include <linux/etherdevice.h>
26 #include <linux/rtnetlink.h>
27 #include <net/rtnetlink.h>
28 #include <net/genetlink.h>
29 #include <net/netlink.h>
30 #include <net/sch_generic.h>
31 #include <net/switchdev.h>
32 #include <generated/utsrelease.h>
33 #include <linux/if_team.h>
35 #define DRV_NAME "team"
42 #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT)
44 static struct team_port
*team_port_get_rcu(const struct net_device
*dev
)
46 return rcu_dereference(dev
->rx_handler_data
);
49 static struct team_port
*team_port_get_rtnl(const struct net_device
*dev
)
51 struct team_port
*port
= rtnl_dereference(dev
->rx_handler_data
);
53 return team_port_exists(dev
) ? port
: NULL
;
57 * Since the ability to change device address for open port device is tested in
58 * team_port_add, this function can be called without control of return value
60 static int __set_port_dev_addr(struct net_device
*port_dev
,
61 const unsigned char *dev_addr
)
65 memcpy(addr
.sa_data
, dev_addr
, port_dev
->addr_len
);
66 addr
.sa_family
= port_dev
->type
;
67 return dev_set_mac_address(port_dev
, &addr
);
70 static int team_port_set_orig_dev_addr(struct team_port
*port
)
72 return __set_port_dev_addr(port
->dev
, port
->orig
.dev_addr
);
75 static int team_port_set_team_dev_addr(struct team
*team
,
76 struct team_port
*port
)
78 return __set_port_dev_addr(port
->dev
, team
->dev
->dev_addr
);
81 int team_modeop_port_enter(struct team
*team
, struct team_port
*port
)
83 return team_port_set_team_dev_addr(team
, port
);
85 EXPORT_SYMBOL(team_modeop_port_enter
);
87 void team_modeop_port_change_dev_addr(struct team
*team
,
88 struct team_port
*port
)
90 team_port_set_team_dev_addr(team
, port
);
92 EXPORT_SYMBOL(team_modeop_port_change_dev_addr
);
94 static void team_lower_state_changed(struct team_port
*port
)
96 struct netdev_lag_lower_state_info info
;
98 info
.link_up
= port
->linkup
;
99 info
.tx_enabled
= team_port_enabled(port
);
100 netdev_lower_state_changed(port
->dev
, &info
);
103 static void team_refresh_port_linkup(struct team_port
*port
)
105 bool new_linkup
= port
->user
.linkup_enabled
? port
->user
.linkup
:
108 if (port
->linkup
!= new_linkup
) {
109 port
->linkup
= new_linkup
;
110 team_lower_state_changed(port
);
119 struct team_option_inst
{ /* One for each option instance */
120 struct list_head list
;
121 struct list_head tmp_list
;
122 struct team_option
*option
;
123 struct team_option_inst_info info
;
128 static struct team_option
*__team_find_option(struct team
*team
,
129 const char *opt_name
)
131 struct team_option
*option
;
133 list_for_each_entry(option
, &team
->option_list
, list
) {
134 if (strcmp(option
->name
, opt_name
) == 0)
140 static void __team_option_inst_del(struct team_option_inst
*opt_inst
)
142 list_del(&opt_inst
->list
);
146 static void __team_option_inst_del_option(struct team
*team
,
147 struct team_option
*option
)
149 struct team_option_inst
*opt_inst
, *tmp
;
151 list_for_each_entry_safe(opt_inst
, tmp
, &team
->option_inst_list
, list
) {
152 if (opt_inst
->option
== option
)
153 __team_option_inst_del(opt_inst
);
157 static int __team_option_inst_add(struct team
*team
, struct team_option
*option
,
158 struct team_port
*port
)
160 struct team_option_inst
*opt_inst
;
161 unsigned int array_size
;
165 array_size
= option
->array_size
;
167 array_size
= 1; /* No array but still need one instance */
169 for (i
= 0; i
< array_size
; i
++) {
170 opt_inst
= kmalloc(sizeof(*opt_inst
), GFP_KERNEL
);
173 opt_inst
->option
= option
;
174 opt_inst
->info
.port
= port
;
175 opt_inst
->info
.array_index
= i
;
176 opt_inst
->changed
= true;
177 opt_inst
->removed
= false;
178 list_add_tail(&opt_inst
->list
, &team
->option_inst_list
);
180 err
= option
->init(team
, &opt_inst
->info
);
189 static int __team_option_inst_add_option(struct team
*team
,
190 struct team_option
*option
)
194 if (!option
->per_port
) {
195 err
= __team_option_inst_add(team
, option
, NULL
);
197 goto inst_del_option
;
202 __team_option_inst_del_option(team
, option
);
206 static void __team_option_inst_mark_removed_option(struct team
*team
,
207 struct team_option
*option
)
209 struct team_option_inst
*opt_inst
;
211 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
212 if (opt_inst
->option
== option
) {
213 opt_inst
->changed
= true;
214 opt_inst
->removed
= true;
219 static void __team_option_inst_del_port(struct team
*team
,
220 struct team_port
*port
)
222 struct team_option_inst
*opt_inst
, *tmp
;
224 list_for_each_entry_safe(opt_inst
, tmp
, &team
->option_inst_list
, list
) {
225 if (opt_inst
->option
->per_port
&&
226 opt_inst
->info
.port
== port
)
227 __team_option_inst_del(opt_inst
);
231 static int __team_option_inst_add_port(struct team
*team
,
232 struct team_port
*port
)
234 struct team_option
*option
;
237 list_for_each_entry(option
, &team
->option_list
, list
) {
238 if (!option
->per_port
)
240 err
= __team_option_inst_add(team
, option
, port
);
247 __team_option_inst_del_port(team
, port
);
251 static void __team_option_inst_mark_removed_port(struct team
*team
,
252 struct team_port
*port
)
254 struct team_option_inst
*opt_inst
;
256 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
257 if (opt_inst
->info
.port
== port
) {
258 opt_inst
->changed
= true;
259 opt_inst
->removed
= true;
264 static int __team_options_register(struct team
*team
,
265 const struct team_option
*option
,
269 struct team_option
**dst_opts
;
272 dst_opts
= kzalloc(sizeof(struct team_option
*) * option_count
,
276 for (i
= 0; i
< option_count
; i
++, option
++) {
277 if (__team_find_option(team
, option
->name
)) {
281 dst_opts
[i
] = kmemdup(option
, sizeof(*option
), GFP_KERNEL
);
288 for (i
= 0; i
< option_count
; i
++) {
289 err
= __team_option_inst_add_option(team
, dst_opts
[i
]);
292 list_add_tail(&dst_opts
[i
]->list
, &team
->option_list
);
299 for (i
--; i
>= 0; i
--)
300 __team_option_inst_del_option(team
, dst_opts
[i
]);
302 i
= option_count
- 1;
304 for (i
--; i
>= 0; i
--)
311 static void __team_options_mark_removed(struct team
*team
,
312 const struct team_option
*option
,
317 for (i
= 0; i
< option_count
; i
++, option
++) {
318 struct team_option
*del_opt
;
320 del_opt
= __team_find_option(team
, option
->name
);
322 __team_option_inst_mark_removed_option(team
, del_opt
);
326 static void __team_options_unregister(struct team
*team
,
327 const struct team_option
*option
,
332 for (i
= 0; i
< option_count
; i
++, option
++) {
333 struct team_option
*del_opt
;
335 del_opt
= __team_find_option(team
, option
->name
);
337 __team_option_inst_del_option(team
, del_opt
);
338 list_del(&del_opt
->list
);
344 static void __team_options_change_check(struct team
*team
);
346 int team_options_register(struct team
*team
,
347 const struct team_option
*option
,
352 err
= __team_options_register(team
, option
, option_count
);
355 __team_options_change_check(team
);
358 EXPORT_SYMBOL(team_options_register
);
360 void team_options_unregister(struct team
*team
,
361 const struct team_option
*option
,
364 __team_options_mark_removed(team
, option
, option_count
);
365 __team_options_change_check(team
);
366 __team_options_unregister(team
, option
, option_count
);
368 EXPORT_SYMBOL(team_options_unregister
);
370 static int team_option_get(struct team
*team
,
371 struct team_option_inst
*opt_inst
,
372 struct team_gsetter_ctx
*ctx
)
374 if (!opt_inst
->option
->getter
)
376 return opt_inst
->option
->getter(team
, ctx
);
379 static int team_option_set(struct team
*team
,
380 struct team_option_inst
*opt_inst
,
381 struct team_gsetter_ctx
*ctx
)
383 if (!opt_inst
->option
->setter
)
385 return opt_inst
->option
->setter(team
, ctx
);
388 void team_option_inst_set_change(struct team_option_inst_info
*opt_inst_info
)
390 struct team_option_inst
*opt_inst
;
392 opt_inst
= container_of(opt_inst_info
, struct team_option_inst
, info
);
393 opt_inst
->changed
= true;
395 EXPORT_SYMBOL(team_option_inst_set_change
);
397 void team_options_change_check(struct team
*team
)
399 __team_options_change_check(team
);
401 EXPORT_SYMBOL(team_options_change_check
);
408 static LIST_HEAD(mode_list
);
409 static DEFINE_SPINLOCK(mode_list_lock
);
411 struct team_mode_item
{
412 struct list_head list
;
413 const struct team_mode
*mode
;
416 static struct team_mode_item
*__find_mode(const char *kind
)
418 struct team_mode_item
*mitem
;
420 list_for_each_entry(mitem
, &mode_list
, list
) {
421 if (strcmp(mitem
->mode
->kind
, kind
) == 0)
427 static bool is_good_mode_name(const char *name
)
429 while (*name
!= '\0') {
430 if (!isalpha(*name
) && !isdigit(*name
) && *name
!= '_')
437 int team_mode_register(const struct team_mode
*mode
)
440 struct team_mode_item
*mitem
;
442 if (!is_good_mode_name(mode
->kind
) ||
443 mode
->priv_size
> TEAM_MODE_PRIV_SIZE
)
446 mitem
= kmalloc(sizeof(*mitem
), GFP_KERNEL
);
450 spin_lock(&mode_list_lock
);
451 if (__find_mode(mode
->kind
)) {
457 list_add_tail(&mitem
->list
, &mode_list
);
459 spin_unlock(&mode_list_lock
);
462 EXPORT_SYMBOL(team_mode_register
);
464 void team_mode_unregister(const struct team_mode
*mode
)
466 struct team_mode_item
*mitem
;
468 spin_lock(&mode_list_lock
);
469 mitem
= __find_mode(mode
->kind
);
471 list_del_init(&mitem
->list
);
474 spin_unlock(&mode_list_lock
);
476 EXPORT_SYMBOL(team_mode_unregister
);
478 static const struct team_mode
*team_mode_get(const char *kind
)
480 struct team_mode_item
*mitem
;
481 const struct team_mode
*mode
= NULL
;
483 spin_lock(&mode_list_lock
);
484 mitem
= __find_mode(kind
);
486 spin_unlock(&mode_list_lock
);
487 request_module("team-mode-%s", kind
);
488 spin_lock(&mode_list_lock
);
489 mitem
= __find_mode(kind
);
493 if (!try_module_get(mode
->owner
))
497 spin_unlock(&mode_list_lock
);
501 static void team_mode_put(const struct team_mode
*mode
)
503 module_put(mode
->owner
);
506 static bool team_dummy_transmit(struct team
*team
, struct sk_buff
*skb
)
508 dev_kfree_skb_any(skb
);
512 static rx_handler_result_t
team_dummy_receive(struct team
*team
,
513 struct team_port
*port
,
516 return RX_HANDLER_ANOTHER
;
519 static const struct team_mode __team_no_mode
= {
523 static bool team_is_mode_set(struct team
*team
)
525 return team
->mode
!= &__team_no_mode
;
528 static void team_set_no_mode(struct team
*team
)
530 team
->user_carrier_enabled
= false;
531 team
->mode
= &__team_no_mode
;
534 static void team_adjust_ops(struct team
*team
)
537 * To avoid checks in rx/tx skb paths, ensure here that non-null and
538 * correct ops are always set.
541 if (!team
->en_port_count
|| !team_is_mode_set(team
) ||
542 !team
->mode
->ops
->transmit
)
543 team
->ops
.transmit
= team_dummy_transmit
;
545 team
->ops
.transmit
= team
->mode
->ops
->transmit
;
547 if (!team
->en_port_count
|| !team_is_mode_set(team
) ||
548 !team
->mode
->ops
->receive
)
549 team
->ops
.receive
= team_dummy_receive
;
551 team
->ops
.receive
= team
->mode
->ops
->receive
;
555 * We can benefit from the fact that it's ensured no port is present
556 * at the time of mode change. Therefore no packets are in fly so there's no
557 * need to set mode operations in any special way.
559 static int __team_change_mode(struct team
*team
,
560 const struct team_mode
*new_mode
)
562 /* Check if mode was previously set and do cleanup if so */
563 if (team_is_mode_set(team
)) {
564 void (*exit_op
)(struct team
*team
) = team
->ops
.exit
;
566 /* Clear ops area so no callback is called any longer */
567 memset(&team
->ops
, 0, sizeof(struct team_mode_ops
));
568 team_adjust_ops(team
);
572 team_mode_put(team
->mode
);
573 team_set_no_mode(team
);
574 /* zero private data area */
575 memset(&team
->mode_priv
, 0,
576 sizeof(struct team
) - offsetof(struct team
, mode_priv
));
582 if (new_mode
->ops
->init
) {
585 err
= new_mode
->ops
->init(team
);
590 team
->mode
= new_mode
;
591 memcpy(&team
->ops
, new_mode
->ops
, sizeof(struct team_mode_ops
));
592 team_adjust_ops(team
);
597 static int team_change_mode(struct team
*team
, const char *kind
)
599 const struct team_mode
*new_mode
;
600 struct net_device
*dev
= team
->dev
;
603 if (!list_empty(&team
->port_list
)) {
604 netdev_err(dev
, "No ports can be present during mode change\n");
608 if (team_is_mode_set(team
) && strcmp(team
->mode
->kind
, kind
) == 0) {
609 netdev_err(dev
, "Unable to change to the same mode the team is in\n");
613 new_mode
= team_mode_get(kind
);
615 netdev_err(dev
, "Mode \"%s\" not found\n", kind
);
619 err
= __team_change_mode(team
, new_mode
);
621 netdev_err(dev
, "Failed to change to mode \"%s\"\n", kind
);
622 team_mode_put(new_mode
);
626 netdev_info(dev
, "Mode changed to \"%s\"\n", kind
);
631 /*********************
633 *********************/
635 static void team_notify_peers_work(struct work_struct
*work
)
640 team
= container_of(work
, struct team
, notify_peers
.dw
.work
);
642 if (!rtnl_trylock()) {
643 schedule_delayed_work(&team
->notify_peers
.dw
, 0);
646 val
= atomic_dec_if_positive(&team
->notify_peers
.count_pending
);
651 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS
, team
->dev
);
654 schedule_delayed_work(&team
->notify_peers
.dw
,
655 msecs_to_jiffies(team
->notify_peers
.interval
));
658 static void team_notify_peers(struct team
*team
)
660 if (!team
->notify_peers
.count
|| !netif_running(team
->dev
))
662 atomic_add(team
->notify_peers
.count
, &team
->notify_peers
.count_pending
);
663 schedule_delayed_work(&team
->notify_peers
.dw
, 0);
666 static void team_notify_peers_init(struct team
*team
)
668 INIT_DELAYED_WORK(&team
->notify_peers
.dw
, team_notify_peers_work
);
671 static void team_notify_peers_fini(struct team
*team
)
673 cancel_delayed_work_sync(&team
->notify_peers
.dw
);
677 /*******************************
678 * Send multicast group rejoins
679 *******************************/
681 static void team_mcast_rejoin_work(struct work_struct
*work
)
686 team
= container_of(work
, struct team
, mcast_rejoin
.dw
.work
);
688 if (!rtnl_trylock()) {
689 schedule_delayed_work(&team
->mcast_rejoin
.dw
, 0);
692 val
= atomic_dec_if_positive(&team
->mcast_rejoin
.count_pending
);
697 call_netdevice_notifiers(NETDEV_RESEND_IGMP
, team
->dev
);
700 schedule_delayed_work(&team
->mcast_rejoin
.dw
,
701 msecs_to_jiffies(team
->mcast_rejoin
.interval
));
704 static void team_mcast_rejoin(struct team
*team
)
706 if (!team
->mcast_rejoin
.count
|| !netif_running(team
->dev
))
708 atomic_add(team
->mcast_rejoin
.count
, &team
->mcast_rejoin
.count_pending
);
709 schedule_delayed_work(&team
->mcast_rejoin
.dw
, 0);
712 static void team_mcast_rejoin_init(struct team
*team
)
714 INIT_DELAYED_WORK(&team
->mcast_rejoin
.dw
, team_mcast_rejoin_work
);
717 static void team_mcast_rejoin_fini(struct team
*team
)
719 cancel_delayed_work_sync(&team
->mcast_rejoin
.dw
);
723 /************************
724 * Rx path frame handler
725 ************************/
727 /* note: already called with rcu_read_lock */
728 static rx_handler_result_t
team_handle_frame(struct sk_buff
**pskb
)
730 struct sk_buff
*skb
= *pskb
;
731 struct team_port
*port
;
733 rx_handler_result_t res
;
735 skb
= skb_share_check(skb
, GFP_ATOMIC
);
737 return RX_HANDLER_CONSUMED
;
741 port
= team_port_get_rcu(skb
->dev
);
743 if (!team_port_enabled(port
)) {
744 /* allow exact match delivery for disabled ports */
745 res
= RX_HANDLER_EXACT
;
747 res
= team
->ops
.receive(team
, port
, skb
);
749 if (res
== RX_HANDLER_ANOTHER
) {
750 struct team_pcpu_stats
*pcpu_stats
;
752 pcpu_stats
= this_cpu_ptr(team
->pcpu_stats
);
753 u64_stats_update_begin(&pcpu_stats
->syncp
);
754 pcpu_stats
->rx_packets
++;
755 pcpu_stats
->rx_bytes
+= skb
->len
;
756 if (skb
->pkt_type
== PACKET_MULTICAST
)
757 pcpu_stats
->rx_multicast
++;
758 u64_stats_update_end(&pcpu_stats
->syncp
);
760 skb
->dev
= team
->dev
;
762 this_cpu_inc(team
->pcpu_stats
->rx_dropped
);
769 /*************************************
770 * Multiqueue Tx port select override
771 *************************************/
773 static int team_queue_override_init(struct team
*team
)
775 struct list_head
*listarr
;
776 unsigned int queue_cnt
= team
->dev
->num_tx_queues
- 1;
781 listarr
= kmalloc(sizeof(struct list_head
) * queue_cnt
, GFP_KERNEL
);
784 team
->qom_lists
= listarr
;
785 for (i
= 0; i
< queue_cnt
; i
++)
786 INIT_LIST_HEAD(listarr
++);
790 static void team_queue_override_fini(struct team
*team
)
792 kfree(team
->qom_lists
);
795 static struct list_head
*__team_get_qom_list(struct team
*team
, u16 queue_id
)
797 return &team
->qom_lists
[queue_id
- 1];
801 * note: already called with rcu_read_lock
803 static bool team_queue_override_transmit(struct team
*team
, struct sk_buff
*skb
)
805 struct list_head
*qom_list
;
806 struct team_port
*port
;
808 if (!team
->queue_override_enabled
|| !skb
->queue_mapping
)
810 qom_list
= __team_get_qom_list(team
, skb
->queue_mapping
);
811 list_for_each_entry_rcu(port
, qom_list
, qom_list
) {
812 if (!team_dev_queue_xmit(team
, port
, skb
))
818 static void __team_queue_override_port_del(struct team
*team
,
819 struct team_port
*port
)
823 list_del_rcu(&port
->qom_list
);
826 static bool team_queue_override_port_has_gt_prio_than(struct team_port
*port
,
827 struct team_port
*cur
)
829 if (port
->priority
< cur
->priority
)
831 if (port
->priority
> cur
->priority
)
833 if (port
->index
< cur
->index
)
838 static void __team_queue_override_port_add(struct team
*team
,
839 struct team_port
*port
)
841 struct team_port
*cur
;
842 struct list_head
*qom_list
;
843 struct list_head
*node
;
847 qom_list
= __team_get_qom_list(team
, port
->queue_id
);
849 list_for_each_entry(cur
, qom_list
, qom_list
) {
850 if (team_queue_override_port_has_gt_prio_than(port
, cur
))
852 node
= &cur
->qom_list
;
854 list_add_tail_rcu(&port
->qom_list
, node
);
857 static void __team_queue_override_enabled_check(struct team
*team
)
859 struct team_port
*port
;
860 bool enabled
= false;
862 list_for_each_entry(port
, &team
->port_list
, list
) {
863 if (port
->queue_id
) {
868 if (enabled
== team
->queue_override_enabled
)
870 netdev_dbg(team
->dev
, "%s queue override\n",
871 enabled
? "Enabling" : "Disabling");
872 team
->queue_override_enabled
= enabled
;
875 static void team_queue_override_port_prio_changed(struct team
*team
,
876 struct team_port
*port
)
878 if (!port
->queue_id
|| team_port_enabled(port
))
880 __team_queue_override_port_del(team
, port
);
881 __team_queue_override_port_add(team
, port
);
882 __team_queue_override_enabled_check(team
);
885 static void team_queue_override_port_change_queue_id(struct team
*team
,
886 struct team_port
*port
,
889 if (team_port_enabled(port
)) {
890 __team_queue_override_port_del(team
, port
);
891 port
->queue_id
= new_queue_id
;
892 __team_queue_override_port_add(team
, port
);
893 __team_queue_override_enabled_check(team
);
895 port
->queue_id
= new_queue_id
;
899 static void team_queue_override_port_add(struct team
*team
,
900 struct team_port
*port
)
902 __team_queue_override_port_add(team
, port
);
903 __team_queue_override_enabled_check(team
);
906 static void team_queue_override_port_del(struct team
*team
,
907 struct team_port
*port
)
909 __team_queue_override_port_del(team
, port
);
910 __team_queue_override_enabled_check(team
);
918 static bool team_port_find(const struct team
*team
,
919 const struct team_port
*port
)
921 struct team_port
*cur
;
923 list_for_each_entry(cur
, &team
->port_list
, list
)
930 * Enable/disable port by adding to enabled port hashlist and setting
931 * port->index (Might be racy so reader could see incorrect ifindex when
932 * processing a flying packet, but that is not a problem). Write guarded
935 static void team_port_enable(struct team
*team
,
936 struct team_port
*port
)
938 if (team_port_enabled(port
))
940 port
->index
= team
->en_port_count
++;
941 hlist_add_head_rcu(&port
->hlist
,
942 team_port_index_hash(team
, port
->index
));
943 team_adjust_ops(team
);
944 team_queue_override_port_add(team
, port
);
945 if (team
->ops
.port_enabled
)
946 team
->ops
.port_enabled(team
, port
);
947 team_notify_peers(team
);
948 team_mcast_rejoin(team
);
949 team_lower_state_changed(port
);
952 static void __reconstruct_port_hlist(struct team
*team
, int rm_index
)
955 struct team_port
*port
;
957 for (i
= rm_index
+ 1; i
< team
->en_port_count
; i
++) {
958 port
= team_get_port_by_index(team
, i
);
959 hlist_del_rcu(&port
->hlist
);
961 hlist_add_head_rcu(&port
->hlist
,
962 team_port_index_hash(team
, port
->index
));
966 static void team_port_disable(struct team
*team
,
967 struct team_port
*port
)
969 if (!team_port_enabled(port
))
971 if (team
->ops
.port_disabled
)
972 team
->ops
.port_disabled(team
, port
);
973 hlist_del_rcu(&port
->hlist
);
974 __reconstruct_port_hlist(team
, port
->index
);
976 team
->en_port_count
--;
977 team_queue_override_port_del(team
, port
);
978 team_adjust_ops(team
);
979 team_notify_peers(team
);
980 team_mcast_rejoin(team
);
981 team_lower_state_changed(port
);
984 #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
985 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
986 NETIF_F_HIGHDMA | NETIF_F_LRO)
988 static void __team_compute_features(struct team
*team
)
990 struct team_port
*port
;
991 u32 vlan_features
= TEAM_VLAN_FEATURES
& NETIF_F_ALL_FOR_ALL
;
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 dst_release_flag
&= port
->dev
->priv_flags
;
1002 if (port
->dev
->hard_header_len
> max_hard_header_len
)
1003 max_hard_header_len
= port
->dev
->hard_header_len
;
1006 team
->dev
->vlan_features
= vlan_features
;
1007 team
->dev
->hard_header_len
= max_hard_header_len
;
1009 team
->dev
->priv_flags
&= ~IFF_XMIT_DST_RELEASE
;
1010 if (dst_release_flag
== (IFF_XMIT_DST_RELEASE
| IFF_XMIT_DST_RELEASE_PERM
))
1011 team
->dev
->priv_flags
|= IFF_XMIT_DST_RELEASE
;
1013 netdev_change_features(team
->dev
);
1016 static void team_compute_features(struct team
*team
)
1018 mutex_lock(&team
->lock
);
1019 __team_compute_features(team
);
1020 mutex_unlock(&team
->lock
);
1023 static int team_port_enter(struct team
*team
, struct team_port
*port
)
1027 dev_hold(team
->dev
);
1028 if (team
->ops
.port_enter
) {
1029 err
= team
->ops
.port_enter(team
, port
);
1031 netdev_err(team
->dev
, "Device %s failed to enter team mode\n",
1033 goto err_port_enter
;
1045 static void team_port_leave(struct team
*team
, struct team_port
*port
)
1047 if (team
->ops
.port_leave
)
1048 team
->ops
.port_leave(team
, port
);
1052 #ifdef CONFIG_NET_POLL_CONTROLLER
1053 static int team_port_enable_netpoll(struct team
*team
, struct team_port
*port
)
1058 if (!team
->dev
->npinfo
)
1061 np
= kzalloc(sizeof(*np
), GFP_KERNEL
);
1065 err
= __netpoll_setup(np
, port
->dev
);
1074 static void team_port_disable_netpoll(struct team_port
*port
)
1076 struct netpoll
*np
= port
->np
;
1082 /* Wait for transmitting packets to finish before freeing. */
1083 synchronize_rcu_bh();
1084 __netpoll_cleanup(np
);
1088 static int team_port_enable_netpoll(struct team
*team
, struct team_port
*port
)
1092 static void team_port_disable_netpoll(struct team_port
*port
)
1097 static int team_upper_dev_link(struct team
*team
, struct team_port
*port
)
1099 struct netdev_lag_upper_info lag_upper_info
;
1102 lag_upper_info
.tx_type
= team
->mode
->lag_tx_type
;
1103 err
= netdev_master_upper_dev_link(port
->dev
, team
->dev
, NULL
,
1107 port
->dev
->priv_flags
|= IFF_TEAM_PORT
;
1111 static void team_upper_dev_unlink(struct team
*team
, struct team_port
*port
)
1113 netdev_upper_dev_unlink(port
->dev
, team
->dev
);
1114 port
->dev
->priv_flags
&= ~IFF_TEAM_PORT
;
1117 static void __team_port_change_port_added(struct team_port
*port
, bool linkup
);
1118 static int team_dev_type_check_change(struct net_device
*dev
,
1119 struct net_device
*port_dev
);
1121 static int team_port_add(struct team
*team
, struct net_device
*port_dev
)
1123 struct net_device
*dev
= team
->dev
;
1124 struct team_port
*port
;
1125 char *portname
= port_dev
->name
;
1128 if (port_dev
->flags
& IFF_LOOPBACK
) {
1129 netdev_err(dev
, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
1134 if (team_port_exists(port_dev
)) {
1135 netdev_err(dev
, "Device %s is already a port "
1136 "of a team device\n", portname
);
1140 if (port_dev
->features
& NETIF_F_VLAN_CHALLENGED
&&
1141 vlan_uses_dev(dev
)) {
1142 netdev_err(dev
, "Device %s is VLAN challenged and team device has VLAN set up\n",
1147 err
= team_dev_type_check_change(dev
, port_dev
);
1151 if (port_dev
->flags
& IFF_UP
) {
1152 netdev_err(dev
, "Device %s is up. Set it down before adding it as a team port\n",
1157 port
= kzalloc(sizeof(struct team_port
) + team
->mode
->port_priv_size
,
1162 port
->dev
= port_dev
;
1164 INIT_LIST_HEAD(&port
->qom_list
);
1166 port
->orig
.mtu
= port_dev
->mtu
;
1167 err
= dev_set_mtu(port_dev
, dev
->mtu
);
1169 netdev_dbg(dev
, "Error %d calling dev_set_mtu\n", err
);
1173 memcpy(port
->orig
.dev_addr
, port_dev
->dev_addr
, port_dev
->addr_len
);
1175 err
= team_port_enter(team
, port
);
1177 netdev_err(dev
, "Device %s failed to enter team mode\n",
1179 goto err_port_enter
;
1182 err
= dev_open(port_dev
);
1184 netdev_dbg(dev
, "Device %s opening failed\n",
1189 err
= vlan_vids_add_by_dev(port_dev
, dev
);
1191 netdev_err(dev
, "Failed to add vlan ids to device %s\n",
1196 err
= team_port_enable_netpoll(team
, port
);
1198 netdev_err(dev
, "Failed to enable netpoll on device %s\n",
1200 goto err_enable_netpoll
;
1203 if (!(dev
->features
& NETIF_F_LRO
))
1204 dev_disable_lro(port_dev
);
1206 err
= netdev_rx_handler_register(port_dev
, team_handle_frame
,
1209 netdev_err(dev
, "Device %s failed to register rx_handler\n",
1211 goto err_handler_register
;
1214 err
= team_upper_dev_link(team
, port
);
1216 netdev_err(dev
, "Device %s failed to set upper link\n",
1218 goto err_set_upper_link
;
1221 err
= __team_option_inst_add_port(team
, port
);
1223 netdev_err(dev
, "Device %s failed to add per-port options\n",
1225 goto err_option_port_add
;
1229 list_add_tail_rcu(&port
->list
, &team
->port_list
);
1230 team_port_enable(team
, port
);
1231 __team_compute_features(team
);
1232 __team_port_change_port_added(port
, !!netif_carrier_ok(port_dev
));
1233 __team_options_change_check(team
);
1235 netdev_info(dev
, "Port device %s added\n", portname
);
1239 err_option_port_add
:
1240 team_upper_dev_unlink(team
, port
);
1243 netdev_rx_handler_unregister(port_dev
);
1245 err_handler_register
:
1246 team_port_disable_netpoll(port
);
1249 vlan_vids_del_by_dev(port_dev
, dev
);
1252 dev_close(port_dev
);
1255 team_port_leave(team
, port
);
1256 team_port_set_orig_dev_addr(port
);
1259 dev_set_mtu(port_dev
, port
->orig
.mtu
);
1267 static void __team_port_change_port_removed(struct team_port
*port
);
1269 static int team_port_del(struct team
*team
, struct net_device
*port_dev
)
1271 struct net_device
*dev
= team
->dev
;
1272 struct team_port
*port
;
1273 char *portname
= port_dev
->name
;
1275 port
= team_port_get_rtnl(port_dev
);
1276 if (!port
|| !team_port_find(team
, port
)) {
1277 netdev_err(dev
, "Device %s does not act as a port of this team\n",
1282 team_port_disable(team
, port
);
1283 list_del_rcu(&port
->list
);
1284 team_upper_dev_unlink(team
, port
);
1285 netdev_rx_handler_unregister(port_dev
);
1286 team_port_disable_netpoll(port
);
1287 vlan_vids_del_by_dev(port_dev
, dev
);
1288 dev_uc_unsync(port_dev
, dev
);
1289 dev_mc_unsync(port_dev
, dev
);
1290 dev_close(port_dev
);
1291 team_port_leave(team
, port
);
1293 __team_option_inst_mark_removed_port(team
, port
);
1294 __team_options_change_check(team
);
1295 __team_option_inst_del_port(team
, port
);
1296 __team_port_change_port_removed(port
);
1298 team_port_set_orig_dev_addr(port
);
1299 dev_set_mtu(port_dev
, port
->orig
.mtu
);
1300 kfree_rcu(port
, rcu
);
1301 netdev_info(dev
, "Port device %s removed\n", portname
);
1302 __team_compute_features(team
);
1312 static int team_mode_option_get(struct team
*team
, struct team_gsetter_ctx
*ctx
)
1314 ctx
->data
.str_val
= team
->mode
->kind
;
1318 static int team_mode_option_set(struct team
*team
, struct team_gsetter_ctx
*ctx
)
1320 return team_change_mode(team
, ctx
->data
.str_val
);
1323 static int team_notify_peers_count_get(struct team
*team
,
1324 struct team_gsetter_ctx
*ctx
)
1326 ctx
->data
.u32_val
= team
->notify_peers
.count
;
1330 static int team_notify_peers_count_set(struct team
*team
,
1331 struct team_gsetter_ctx
*ctx
)
1333 team
->notify_peers
.count
= ctx
->data
.u32_val
;
1337 static int team_notify_peers_interval_get(struct team
*team
,
1338 struct team_gsetter_ctx
*ctx
)
1340 ctx
->data
.u32_val
= team
->notify_peers
.interval
;
1344 static int team_notify_peers_interval_set(struct team
*team
,
1345 struct team_gsetter_ctx
*ctx
)
1347 team
->notify_peers
.interval
= ctx
->data
.u32_val
;
1351 static int team_mcast_rejoin_count_get(struct team
*team
,
1352 struct team_gsetter_ctx
*ctx
)
1354 ctx
->data
.u32_val
= team
->mcast_rejoin
.count
;
1358 static int team_mcast_rejoin_count_set(struct team
*team
,
1359 struct team_gsetter_ctx
*ctx
)
1361 team
->mcast_rejoin
.count
= ctx
->data
.u32_val
;
1365 static int team_mcast_rejoin_interval_get(struct team
*team
,
1366 struct team_gsetter_ctx
*ctx
)
1368 ctx
->data
.u32_val
= team
->mcast_rejoin
.interval
;
1372 static int team_mcast_rejoin_interval_set(struct team
*team
,
1373 struct team_gsetter_ctx
*ctx
)
1375 team
->mcast_rejoin
.interval
= ctx
->data
.u32_val
;
1379 static int team_port_en_option_get(struct team
*team
,
1380 struct team_gsetter_ctx
*ctx
)
1382 struct team_port
*port
= ctx
->info
->port
;
1384 ctx
->data
.bool_val
= team_port_enabled(port
);
1388 static int team_port_en_option_set(struct team
*team
,
1389 struct team_gsetter_ctx
*ctx
)
1391 struct team_port
*port
= ctx
->info
->port
;
1393 if (ctx
->data
.bool_val
)
1394 team_port_enable(team
, port
);
1396 team_port_disable(team
, port
);
1400 static int team_user_linkup_option_get(struct team
*team
,
1401 struct team_gsetter_ctx
*ctx
)
1403 struct team_port
*port
= ctx
->info
->port
;
1405 ctx
->data
.bool_val
= port
->user
.linkup
;
1409 static void __team_carrier_check(struct team
*team
);
1411 static int team_user_linkup_option_set(struct team
*team
,
1412 struct team_gsetter_ctx
*ctx
)
1414 struct team_port
*port
= ctx
->info
->port
;
1416 port
->user
.linkup
= ctx
->data
.bool_val
;
1417 team_refresh_port_linkup(port
);
1418 __team_carrier_check(port
->team
);
1422 static int team_user_linkup_en_option_get(struct team
*team
,
1423 struct team_gsetter_ctx
*ctx
)
1425 struct team_port
*port
= ctx
->info
->port
;
1427 ctx
->data
.bool_val
= port
->user
.linkup_enabled
;
1431 static int team_user_linkup_en_option_set(struct team
*team
,
1432 struct team_gsetter_ctx
*ctx
)
1434 struct team_port
*port
= ctx
->info
->port
;
1436 port
->user
.linkup_enabled
= ctx
->data
.bool_val
;
1437 team_refresh_port_linkup(port
);
1438 __team_carrier_check(port
->team
);
1442 static int team_priority_option_get(struct team
*team
,
1443 struct team_gsetter_ctx
*ctx
)
1445 struct team_port
*port
= ctx
->info
->port
;
1447 ctx
->data
.s32_val
= port
->priority
;
1451 static int team_priority_option_set(struct team
*team
,
1452 struct team_gsetter_ctx
*ctx
)
1454 struct team_port
*port
= ctx
->info
->port
;
1455 s32 priority
= ctx
->data
.s32_val
;
1457 if (port
->priority
== priority
)
1459 port
->priority
= priority
;
1460 team_queue_override_port_prio_changed(team
, port
);
1464 static int team_queue_id_option_get(struct team
*team
,
1465 struct team_gsetter_ctx
*ctx
)
1467 struct team_port
*port
= ctx
->info
->port
;
1469 ctx
->data
.u32_val
= port
->queue_id
;
1473 static int team_queue_id_option_set(struct team
*team
,
1474 struct team_gsetter_ctx
*ctx
)
1476 struct team_port
*port
= ctx
->info
->port
;
1477 u16 new_queue_id
= ctx
->data
.u32_val
;
1479 if (port
->queue_id
== new_queue_id
)
1481 if (new_queue_id
>= team
->dev
->real_num_tx_queues
)
1483 team_queue_override_port_change_queue_id(team
, port
, new_queue_id
);
1487 static const struct team_option team_options
[] = {
1490 .type
= TEAM_OPTION_TYPE_STRING
,
1491 .getter
= team_mode_option_get
,
1492 .setter
= team_mode_option_set
,
1495 .name
= "notify_peers_count",
1496 .type
= TEAM_OPTION_TYPE_U32
,
1497 .getter
= team_notify_peers_count_get
,
1498 .setter
= team_notify_peers_count_set
,
1501 .name
= "notify_peers_interval",
1502 .type
= TEAM_OPTION_TYPE_U32
,
1503 .getter
= team_notify_peers_interval_get
,
1504 .setter
= team_notify_peers_interval_set
,
1507 .name
= "mcast_rejoin_count",
1508 .type
= TEAM_OPTION_TYPE_U32
,
1509 .getter
= team_mcast_rejoin_count_get
,
1510 .setter
= team_mcast_rejoin_count_set
,
1513 .name
= "mcast_rejoin_interval",
1514 .type
= TEAM_OPTION_TYPE_U32
,
1515 .getter
= team_mcast_rejoin_interval_get
,
1516 .setter
= team_mcast_rejoin_interval_set
,
1520 .type
= TEAM_OPTION_TYPE_BOOL
,
1522 .getter
= team_port_en_option_get
,
1523 .setter
= team_port_en_option_set
,
1526 .name
= "user_linkup",
1527 .type
= TEAM_OPTION_TYPE_BOOL
,
1529 .getter
= team_user_linkup_option_get
,
1530 .setter
= team_user_linkup_option_set
,
1533 .name
= "user_linkup_enabled",
1534 .type
= TEAM_OPTION_TYPE_BOOL
,
1536 .getter
= team_user_linkup_en_option_get
,
1537 .setter
= team_user_linkup_en_option_set
,
1541 .type
= TEAM_OPTION_TYPE_S32
,
1543 .getter
= team_priority_option_get
,
1544 .setter
= team_priority_option_set
,
1548 .type
= TEAM_OPTION_TYPE_U32
,
1550 .getter
= team_queue_id_option_get
,
1551 .setter
= team_queue_id_option_set
,
1555 static struct lock_class_key team_netdev_xmit_lock_key
;
1556 static struct lock_class_key team_netdev_addr_lock_key
;
1557 static struct lock_class_key team_tx_busylock_key
;
1559 static void team_set_lockdep_class_one(struct net_device
*dev
,
1560 struct netdev_queue
*txq
,
1563 lockdep_set_class(&txq
->_xmit_lock
, &team_netdev_xmit_lock_key
);
1566 static void team_set_lockdep_class(struct net_device
*dev
)
1568 lockdep_set_class(&dev
->addr_list_lock
, &team_netdev_addr_lock_key
);
1569 netdev_for_each_tx_queue(dev
, team_set_lockdep_class_one
, NULL
);
1570 dev
->qdisc_tx_busylock
= &team_tx_busylock_key
;
1573 static int team_init(struct net_device
*dev
)
1575 struct team
*team
= netdev_priv(dev
);
1580 mutex_init(&team
->lock
);
1581 team_set_no_mode(team
);
1583 team
->pcpu_stats
= netdev_alloc_pcpu_stats(struct team_pcpu_stats
);
1584 if (!team
->pcpu_stats
)
1587 for (i
= 0; i
< TEAM_PORT_HASHENTRIES
; i
++)
1588 INIT_HLIST_HEAD(&team
->en_port_hlist
[i
]);
1589 INIT_LIST_HEAD(&team
->port_list
);
1590 err
= team_queue_override_init(team
);
1592 goto err_team_queue_override_init
;
1594 team_adjust_ops(team
);
1596 INIT_LIST_HEAD(&team
->option_list
);
1597 INIT_LIST_HEAD(&team
->option_inst_list
);
1599 team_notify_peers_init(team
);
1600 team_mcast_rejoin_init(team
);
1602 err
= team_options_register(team
, team_options
, ARRAY_SIZE(team_options
));
1604 goto err_options_register
;
1605 netif_carrier_off(dev
);
1607 team_set_lockdep_class(dev
);
1611 err_options_register
:
1612 team_mcast_rejoin_fini(team
);
1613 team_notify_peers_fini(team
);
1614 team_queue_override_fini(team
);
1615 err_team_queue_override_init
:
1616 free_percpu(team
->pcpu_stats
);
1621 static void team_uninit(struct net_device
*dev
)
1623 struct team
*team
= netdev_priv(dev
);
1624 struct team_port
*port
;
1625 struct team_port
*tmp
;
1627 mutex_lock(&team
->lock
);
1628 list_for_each_entry_safe(port
, tmp
, &team
->port_list
, list
)
1629 team_port_del(team
, port
->dev
);
1631 __team_change_mode(team
, NULL
); /* cleanup */
1632 __team_options_unregister(team
, team_options
, ARRAY_SIZE(team_options
));
1633 team_mcast_rejoin_fini(team
);
1634 team_notify_peers_fini(team
);
1635 team_queue_override_fini(team
);
1636 mutex_unlock(&team
->lock
);
1639 static void team_destructor(struct net_device
*dev
)
1641 struct team
*team
= netdev_priv(dev
);
1643 free_percpu(team
->pcpu_stats
);
1647 static int team_open(struct net_device
*dev
)
1652 static int team_close(struct net_device
*dev
)
1658 * note: already called with rcu_read_lock
1660 static netdev_tx_t
team_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1662 struct team
*team
= netdev_priv(dev
);
1664 unsigned int len
= skb
->len
;
1666 tx_success
= team_queue_override_transmit(team
, skb
);
1668 tx_success
= team
->ops
.transmit(team
, skb
);
1670 struct team_pcpu_stats
*pcpu_stats
;
1672 pcpu_stats
= this_cpu_ptr(team
->pcpu_stats
);
1673 u64_stats_update_begin(&pcpu_stats
->syncp
);
1674 pcpu_stats
->tx_packets
++;
1675 pcpu_stats
->tx_bytes
+= len
;
1676 u64_stats_update_end(&pcpu_stats
->syncp
);
1678 this_cpu_inc(team
->pcpu_stats
->tx_dropped
);
1681 return NETDEV_TX_OK
;
1684 static u16
team_select_queue(struct net_device
*dev
, struct sk_buff
*skb
,
1685 void *accel_priv
, select_queue_fallback_t fallback
)
1688 * This helper function exists to help dev_pick_tx get the correct
1689 * destination queue. Using a helper function skips a call to
1690 * skb_tx_hash and will put the skbs in the queue we expect on their
1691 * way down to the team driver.
1693 u16 txq
= skb_rx_queue_recorded(skb
) ? skb_get_rx_queue(skb
) : 0;
1696 * Save the original txq to restore before passing to the driver
1698 qdisc_skb_cb(skb
)->slave_dev_queue_mapping
= skb
->queue_mapping
;
1700 if (unlikely(txq
>= dev
->real_num_tx_queues
)) {
1702 txq
-= dev
->real_num_tx_queues
;
1703 } while (txq
>= dev
->real_num_tx_queues
);
1708 static void team_change_rx_flags(struct net_device
*dev
, int change
)
1710 struct team
*team
= netdev_priv(dev
);
1711 struct team_port
*port
;
1715 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1716 if (change
& IFF_PROMISC
) {
1717 inc
= dev
->flags
& IFF_PROMISC
? 1 : -1;
1718 dev_set_promiscuity(port
->dev
, inc
);
1720 if (change
& IFF_ALLMULTI
) {
1721 inc
= dev
->flags
& IFF_ALLMULTI
? 1 : -1;
1722 dev_set_allmulti(port
->dev
, inc
);
1728 static void team_set_rx_mode(struct net_device
*dev
)
1730 struct team
*team
= netdev_priv(dev
);
1731 struct team_port
*port
;
1734 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1735 dev_uc_sync_multiple(port
->dev
, dev
);
1736 dev_mc_sync_multiple(port
->dev
, dev
);
1741 static int team_set_mac_address(struct net_device
*dev
, void *p
)
1743 struct sockaddr
*addr
= p
;
1744 struct team
*team
= netdev_priv(dev
);
1745 struct team_port
*port
;
1747 if (dev
->type
== ARPHRD_ETHER
&& !is_valid_ether_addr(addr
->sa_data
))
1748 return -EADDRNOTAVAIL
;
1749 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1750 mutex_lock(&team
->lock
);
1751 list_for_each_entry(port
, &team
->port_list
, list
)
1752 if (team
->ops
.port_change_dev_addr
)
1753 team
->ops
.port_change_dev_addr(team
, port
);
1754 mutex_unlock(&team
->lock
);
1758 static int team_change_mtu(struct net_device
*dev
, int new_mtu
)
1760 struct team
*team
= netdev_priv(dev
);
1761 struct team_port
*port
;
1765 * Alhough this is reader, it's guarded by team lock. It's not possible
1766 * to traverse list in reverse under rcu_read_lock
1768 mutex_lock(&team
->lock
);
1769 team
->port_mtu_change_allowed
= true;
1770 list_for_each_entry(port
, &team
->port_list
, list
) {
1771 err
= dev_set_mtu(port
->dev
, new_mtu
);
1773 netdev_err(dev
, "Device %s failed to change mtu",
1778 team
->port_mtu_change_allowed
= false;
1779 mutex_unlock(&team
->lock
);
1786 list_for_each_entry_continue_reverse(port
, &team
->port_list
, list
)
1787 dev_set_mtu(port
->dev
, dev
->mtu
);
1788 team
->port_mtu_change_allowed
= false;
1789 mutex_unlock(&team
->lock
);
1794 static struct rtnl_link_stats64
*
1795 team_get_stats64(struct net_device
*dev
, struct rtnl_link_stats64
*stats
)
1797 struct team
*team
= netdev_priv(dev
);
1798 struct team_pcpu_stats
*p
;
1799 u64 rx_packets
, rx_bytes
, rx_multicast
, tx_packets
, tx_bytes
;
1800 u32 rx_dropped
= 0, tx_dropped
= 0;
1804 for_each_possible_cpu(i
) {
1805 p
= per_cpu_ptr(team
->pcpu_stats
, i
);
1807 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
1808 rx_packets
= p
->rx_packets
;
1809 rx_bytes
= p
->rx_bytes
;
1810 rx_multicast
= p
->rx_multicast
;
1811 tx_packets
= p
->tx_packets
;
1812 tx_bytes
= p
->tx_bytes
;
1813 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
1815 stats
->rx_packets
+= rx_packets
;
1816 stats
->rx_bytes
+= rx_bytes
;
1817 stats
->multicast
+= rx_multicast
;
1818 stats
->tx_packets
+= tx_packets
;
1819 stats
->tx_bytes
+= tx_bytes
;
1821 * rx_dropped & tx_dropped are u32, updated
1822 * without syncp protection.
1824 rx_dropped
+= p
->rx_dropped
;
1825 tx_dropped
+= p
->tx_dropped
;
1827 stats
->rx_dropped
= rx_dropped
;
1828 stats
->tx_dropped
= tx_dropped
;
1832 static int team_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1834 struct team
*team
= netdev_priv(dev
);
1835 struct team_port
*port
;
1839 * Alhough this is reader, it's guarded by team lock. It's not possible
1840 * to traverse list in reverse under rcu_read_lock
1842 mutex_lock(&team
->lock
);
1843 list_for_each_entry(port
, &team
->port_list
, list
) {
1844 err
= vlan_vid_add(port
->dev
, proto
, vid
);
1848 mutex_unlock(&team
->lock
);
1853 list_for_each_entry_continue_reverse(port
, &team
->port_list
, list
)
1854 vlan_vid_del(port
->dev
, proto
, vid
);
1855 mutex_unlock(&team
->lock
);
1860 static int team_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1862 struct team
*team
= netdev_priv(dev
);
1863 struct team_port
*port
;
1866 list_for_each_entry_rcu(port
, &team
->port_list
, list
)
1867 vlan_vid_del(port
->dev
, proto
, vid
);
1873 #ifdef CONFIG_NET_POLL_CONTROLLER
1874 static void team_poll_controller(struct net_device
*dev
)
1878 static void __team_netpoll_cleanup(struct team
*team
)
1880 struct team_port
*port
;
1882 list_for_each_entry(port
, &team
->port_list
, list
)
1883 team_port_disable_netpoll(port
);
1886 static void team_netpoll_cleanup(struct net_device
*dev
)
1888 struct team
*team
= netdev_priv(dev
);
1890 mutex_lock(&team
->lock
);
1891 __team_netpoll_cleanup(team
);
1892 mutex_unlock(&team
->lock
);
1895 static int team_netpoll_setup(struct net_device
*dev
,
1896 struct netpoll_info
*npifo
)
1898 struct team
*team
= netdev_priv(dev
);
1899 struct team_port
*port
;
1902 mutex_lock(&team
->lock
);
1903 list_for_each_entry(port
, &team
->port_list
, list
) {
1904 err
= team_port_enable_netpoll(team
, port
);
1906 __team_netpoll_cleanup(team
);
1910 mutex_unlock(&team
->lock
);
1915 static int team_add_slave(struct net_device
*dev
, struct net_device
*port_dev
)
1917 struct team
*team
= netdev_priv(dev
);
1920 mutex_lock(&team
->lock
);
1921 err
= team_port_add(team
, port_dev
);
1922 mutex_unlock(&team
->lock
);
1926 static int team_del_slave(struct net_device
*dev
, struct net_device
*port_dev
)
1928 struct team
*team
= netdev_priv(dev
);
1931 mutex_lock(&team
->lock
);
1932 err
= team_port_del(team
, port_dev
);
1933 mutex_unlock(&team
->lock
);
1937 static netdev_features_t
team_fix_features(struct net_device
*dev
,
1938 netdev_features_t features
)
1940 struct team_port
*port
;
1941 struct team
*team
= netdev_priv(dev
);
1942 netdev_features_t mask
;
1945 features
&= ~NETIF_F_ONE_FOR_ALL
;
1946 features
|= NETIF_F_ALL_FOR_ALL
;
1949 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1950 features
= netdev_increment_features(features
,
1951 port
->dev
->features
,
1956 features
= netdev_add_tso_features(features
, mask
);
1961 static int team_change_carrier(struct net_device
*dev
, bool new_carrier
)
1963 struct team
*team
= netdev_priv(dev
);
1965 team
->user_carrier_enabled
= true;
1968 netif_carrier_on(dev
);
1970 netif_carrier_off(dev
);
1974 static const struct net_device_ops team_netdev_ops
= {
1975 .ndo_init
= team_init
,
1976 .ndo_uninit
= team_uninit
,
1977 .ndo_open
= team_open
,
1978 .ndo_stop
= team_close
,
1979 .ndo_start_xmit
= team_xmit
,
1980 .ndo_select_queue
= team_select_queue
,
1981 .ndo_change_rx_flags
= team_change_rx_flags
,
1982 .ndo_set_rx_mode
= team_set_rx_mode
,
1983 .ndo_set_mac_address
= team_set_mac_address
,
1984 .ndo_change_mtu
= team_change_mtu
,
1985 .ndo_get_stats64
= team_get_stats64
,
1986 .ndo_vlan_rx_add_vid
= team_vlan_rx_add_vid
,
1987 .ndo_vlan_rx_kill_vid
= team_vlan_rx_kill_vid
,
1988 #ifdef CONFIG_NET_POLL_CONTROLLER
1989 .ndo_poll_controller
= team_poll_controller
,
1990 .ndo_netpoll_setup
= team_netpoll_setup
,
1991 .ndo_netpoll_cleanup
= team_netpoll_cleanup
,
1993 .ndo_add_slave
= team_add_slave
,
1994 .ndo_del_slave
= team_del_slave
,
1995 .ndo_fix_features
= team_fix_features
,
1996 .ndo_change_carrier
= team_change_carrier
,
1997 .ndo_bridge_setlink
= switchdev_port_bridge_setlink
,
1998 .ndo_bridge_getlink
= switchdev_port_bridge_getlink
,
1999 .ndo_bridge_dellink
= switchdev_port_bridge_dellink
,
2000 .ndo_fdb_add
= switchdev_port_fdb_add
,
2001 .ndo_fdb_del
= switchdev_port_fdb_del
,
2002 .ndo_fdb_dump
= switchdev_port_fdb_dump
,
2003 .ndo_features_check
= passthru_features_check
,
2006 /***********************
2008 ***********************/
2010 static void team_ethtool_get_drvinfo(struct net_device
*dev
,
2011 struct ethtool_drvinfo
*drvinfo
)
2013 strlcpy(drvinfo
->driver
, DRV_NAME
, sizeof(drvinfo
->driver
));
2014 strlcpy(drvinfo
->version
, UTS_RELEASE
, sizeof(drvinfo
->version
));
2017 static const struct ethtool_ops team_ethtool_ops
= {
2018 .get_drvinfo
= team_ethtool_get_drvinfo
,
2019 .get_link
= ethtool_op_get_link
,
2022 /***********************
2023 * rt netlink interface
2024 ***********************/
2026 static void team_setup_by_port(struct net_device
*dev
,
2027 struct net_device
*port_dev
)
2029 dev
->header_ops
= port_dev
->header_ops
;
2030 dev
->type
= port_dev
->type
;
2031 dev
->hard_header_len
= port_dev
->hard_header_len
;
2032 dev
->addr_len
= port_dev
->addr_len
;
2033 dev
->mtu
= port_dev
->mtu
;
2034 memcpy(dev
->broadcast
, port_dev
->broadcast
, port_dev
->addr_len
);
2035 eth_hw_addr_inherit(dev
, port_dev
);
2038 static int team_dev_type_check_change(struct net_device
*dev
,
2039 struct net_device
*port_dev
)
2041 struct team
*team
= netdev_priv(dev
);
2042 char *portname
= port_dev
->name
;
2045 if (dev
->type
== port_dev
->type
)
2047 if (!list_empty(&team
->port_list
)) {
2048 netdev_err(dev
, "Device %s is of different type\n", portname
);
2051 err
= call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE
, dev
);
2052 err
= notifier_to_errno(err
);
2054 netdev_err(dev
, "Refused to change device type\n");
2059 team_setup_by_port(dev
, port_dev
);
2060 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE
, dev
);
2064 static void team_setup(struct net_device
*dev
)
2068 dev
->netdev_ops
= &team_netdev_ops
;
2069 dev
->ethtool_ops
= &team_ethtool_ops
;
2070 dev
->destructor
= team_destructor
;
2071 dev
->flags
|= IFF_MULTICAST
;
2072 dev
->priv_flags
&= ~(IFF_XMIT_DST_RELEASE
| IFF_TX_SKB_SHARING
);
2073 dev
->priv_flags
|= IFF_NO_QUEUE
;
2074 dev
->priv_flags
|= IFF_TEAM
;
2077 * Indicate we support unicast address filtering. That way core won't
2078 * bring us to promisc mode in case a unicast addr is added.
2079 * Let this up to underlay drivers.
2081 dev
->priv_flags
|= IFF_UNICAST_FLT
| IFF_LIVE_ADDR_CHANGE
;
2083 dev
->features
|= NETIF_F_LLTX
;
2084 dev
->features
|= NETIF_F_GRO
;
2086 /* Don't allow team devices to change network namespaces. */
2087 dev
->features
|= NETIF_F_NETNS_LOCAL
;
2089 dev
->hw_features
= TEAM_VLAN_FEATURES
|
2090 NETIF_F_HW_VLAN_CTAG_TX
|
2091 NETIF_F_HW_VLAN_CTAG_RX
|
2092 NETIF_F_HW_VLAN_CTAG_FILTER
;
2094 dev
->features
|= dev
->hw_features
;
2097 static int team_newlink(struct net
*src_net
, struct net_device
*dev
,
2098 struct nlattr
*tb
[], struct nlattr
*data
[])
2100 if (tb
[IFLA_ADDRESS
] == NULL
)
2101 eth_hw_addr_random(dev
);
2103 return register_netdevice(dev
);
2106 static int team_validate(struct nlattr
*tb
[], struct nlattr
*data
[])
2108 if (tb
[IFLA_ADDRESS
]) {
2109 if (nla_len(tb
[IFLA_ADDRESS
]) != ETH_ALEN
)
2111 if (!is_valid_ether_addr(nla_data(tb
[IFLA_ADDRESS
])))
2112 return -EADDRNOTAVAIL
;
2117 static unsigned int team_get_num_tx_queues(void)
2119 return TEAM_DEFAULT_NUM_TX_QUEUES
;
2122 static unsigned int team_get_num_rx_queues(void)
2124 return TEAM_DEFAULT_NUM_RX_QUEUES
;
2127 static struct rtnl_link_ops team_link_ops __read_mostly
= {
2129 .priv_size
= sizeof(struct team
),
2130 .setup
= team_setup
,
2131 .newlink
= team_newlink
,
2132 .validate
= team_validate
,
2133 .get_num_tx_queues
= team_get_num_tx_queues
,
2134 .get_num_rx_queues
= team_get_num_rx_queues
,
2138 /***********************************
2139 * Generic netlink custom interface
2140 ***********************************/
2142 static struct genl_family team_nl_family
= {
2143 .id
= GENL_ID_GENERATE
,
2144 .name
= TEAM_GENL_NAME
,
2145 .version
= TEAM_GENL_VERSION
,
2146 .maxattr
= TEAM_ATTR_MAX
,
2150 static const struct nla_policy team_nl_policy
[TEAM_ATTR_MAX
+ 1] = {
2151 [TEAM_ATTR_UNSPEC
] = { .type
= NLA_UNSPEC
, },
2152 [TEAM_ATTR_TEAM_IFINDEX
] = { .type
= NLA_U32
},
2153 [TEAM_ATTR_LIST_OPTION
] = { .type
= NLA_NESTED
},
2154 [TEAM_ATTR_LIST_PORT
] = { .type
= NLA_NESTED
},
2157 static const struct nla_policy
2158 team_nl_option_policy
[TEAM_ATTR_OPTION_MAX
+ 1] = {
2159 [TEAM_ATTR_OPTION_UNSPEC
] = { .type
= NLA_UNSPEC
, },
2160 [TEAM_ATTR_OPTION_NAME
] = {
2162 .len
= TEAM_STRING_MAX_LEN
,
2164 [TEAM_ATTR_OPTION_CHANGED
] = { .type
= NLA_FLAG
},
2165 [TEAM_ATTR_OPTION_TYPE
] = { .type
= NLA_U8
},
2166 [TEAM_ATTR_OPTION_DATA
] = { .type
= NLA_BINARY
},
2169 static int team_nl_cmd_noop(struct sk_buff
*skb
, struct genl_info
*info
)
2171 struct sk_buff
*msg
;
2175 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2179 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
,
2180 &team_nl_family
, 0, TEAM_CMD_NOOP
);
2186 genlmsg_end(msg
, hdr
);
2188 return genlmsg_unicast(genl_info_net(info
), msg
, info
->snd_portid
);
2197 * Netlink cmd functions should be locked by following two functions.
2198 * Since dev gets held here, that ensures dev won't disappear in between.
2200 static struct team
*team_nl_team_get(struct genl_info
*info
)
2202 struct net
*net
= genl_info_net(info
);
2204 struct net_device
*dev
;
2207 if (!info
->attrs
[TEAM_ATTR_TEAM_IFINDEX
])
2210 ifindex
= nla_get_u32(info
->attrs
[TEAM_ATTR_TEAM_IFINDEX
]);
2211 dev
= dev_get_by_index(net
, ifindex
);
2212 if (!dev
|| dev
->netdev_ops
!= &team_netdev_ops
) {
2218 team
= netdev_priv(dev
);
2219 mutex_lock(&team
->lock
);
2223 static void team_nl_team_put(struct team
*team
)
2225 mutex_unlock(&team
->lock
);
2229 typedef int team_nl_send_func_t(struct sk_buff
*skb
,
2230 struct team
*team
, u32 portid
);
2232 static int team_nl_send_unicast(struct sk_buff
*skb
, struct team
*team
, u32 portid
)
2234 return genlmsg_unicast(dev_net(team
->dev
), skb
, portid
);
2237 static int team_nl_fill_one_option_get(struct sk_buff
*skb
, struct team
*team
,
2238 struct team_option_inst
*opt_inst
)
2240 struct nlattr
*option_item
;
2241 struct team_option
*option
= opt_inst
->option
;
2242 struct team_option_inst_info
*opt_inst_info
= &opt_inst
->info
;
2243 struct team_gsetter_ctx ctx
;
2246 ctx
.info
= opt_inst_info
;
2247 err
= team_option_get(team
, opt_inst
, &ctx
);
2251 option_item
= nla_nest_start(skb
, TEAM_ATTR_ITEM_OPTION
);
2255 if (nla_put_string(skb
, TEAM_ATTR_OPTION_NAME
, option
->name
))
2257 if (opt_inst_info
->port
&&
2258 nla_put_u32(skb
, TEAM_ATTR_OPTION_PORT_IFINDEX
,
2259 opt_inst_info
->port
->dev
->ifindex
))
2261 if (opt_inst
->option
->array_size
&&
2262 nla_put_u32(skb
, TEAM_ATTR_OPTION_ARRAY_INDEX
,
2263 opt_inst_info
->array_index
))
2266 switch (option
->type
) {
2267 case TEAM_OPTION_TYPE_U32
:
2268 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_U32
))
2270 if (nla_put_u32(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.u32_val
))
2273 case TEAM_OPTION_TYPE_STRING
:
2274 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_STRING
))
2276 if (nla_put_string(skb
, TEAM_ATTR_OPTION_DATA
,
2280 case TEAM_OPTION_TYPE_BINARY
:
2281 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_BINARY
))
2283 if (nla_put(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.bin_val
.len
,
2284 ctx
.data
.bin_val
.ptr
))
2287 case TEAM_OPTION_TYPE_BOOL
:
2288 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_FLAG
))
2290 if (ctx
.data
.bool_val
&&
2291 nla_put_flag(skb
, TEAM_ATTR_OPTION_DATA
))
2294 case TEAM_OPTION_TYPE_S32
:
2295 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_S32
))
2297 if (nla_put_s32(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.s32_val
))
2303 if (opt_inst
->removed
&& nla_put_flag(skb
, TEAM_ATTR_OPTION_REMOVED
))
2305 if (opt_inst
->changed
) {
2306 if (nla_put_flag(skb
, TEAM_ATTR_OPTION_CHANGED
))
2308 opt_inst
->changed
= false;
2310 nla_nest_end(skb
, option_item
);
2314 nla_nest_cancel(skb
, option_item
);
2318 static int __send_and_alloc_skb(struct sk_buff
**pskb
,
2319 struct team
*team
, u32 portid
,
2320 team_nl_send_func_t
*send_func
)
2325 err
= send_func(*pskb
, team
, portid
);
2329 *pskb
= genlmsg_new(GENLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2335 static int team_nl_send_options_get(struct team
*team
, u32 portid
, u32 seq
,
2336 int flags
, team_nl_send_func_t
*send_func
,
2337 struct list_head
*sel_opt_inst_list
)
2339 struct nlattr
*option_list
;
2340 struct nlmsghdr
*nlh
;
2342 struct team_option_inst
*opt_inst
;
2344 struct sk_buff
*skb
= NULL
;
2348 opt_inst
= list_first_entry(sel_opt_inst_list
,
2349 struct team_option_inst
, tmp_list
);
2352 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2356 hdr
= genlmsg_put(skb
, portid
, seq
, &team_nl_family
, flags
| NLM_F_MULTI
,
2357 TEAM_CMD_OPTIONS_GET
);
2361 if (nla_put_u32(skb
, TEAM_ATTR_TEAM_IFINDEX
, team
->dev
->ifindex
))
2362 goto nla_put_failure
;
2363 option_list
= nla_nest_start(skb
, TEAM_ATTR_LIST_OPTION
);
2365 goto nla_put_failure
;
2369 list_for_each_entry_from(opt_inst
, sel_opt_inst_list
, tmp_list
) {
2370 err
= team_nl_fill_one_option_get(skb
, team
, opt_inst
);
2372 if (err
== -EMSGSIZE
) {
2383 nla_nest_end(skb
, option_list
);
2384 genlmsg_end(skb
, hdr
);
2389 nlh
= nlmsg_put(skb
, portid
, seq
, NLMSG_DONE
, 0, flags
| NLM_F_MULTI
);
2391 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2397 return send_func(skb
, team
, portid
);
2402 genlmsg_cancel(skb
, hdr
);
2407 static int team_nl_cmd_options_get(struct sk_buff
*skb
, struct genl_info
*info
)
2410 struct team_option_inst
*opt_inst
;
2412 LIST_HEAD(sel_opt_inst_list
);
2414 team
= team_nl_team_get(info
);
2418 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
)
2419 list_add_tail(&opt_inst
->tmp_list
, &sel_opt_inst_list
);
2420 err
= team_nl_send_options_get(team
, info
->snd_portid
, info
->snd_seq
,
2421 NLM_F_ACK
, team_nl_send_unicast
,
2422 &sel_opt_inst_list
);
2424 team_nl_team_put(team
);
2429 static int team_nl_send_event_options_get(struct team
*team
,
2430 struct list_head
*sel_opt_inst_list
);
2432 static int team_nl_cmd_options_set(struct sk_buff
*skb
, struct genl_info
*info
)
2437 struct nlattr
*nl_option
;
2438 LIST_HEAD(opt_inst_list
);
2442 team
= team_nl_team_get(info
);
2449 if (!info
->attrs
[TEAM_ATTR_LIST_OPTION
]) {
2454 nla_for_each_nested(nl_option
, info
->attrs
[TEAM_ATTR_LIST_OPTION
], i
) {
2455 struct nlattr
*opt_attrs
[TEAM_ATTR_OPTION_MAX
+ 1];
2456 struct nlattr
*attr
;
2457 struct nlattr
*attr_data
;
2458 enum team_option_type opt_type
;
2459 int opt_port_ifindex
= 0; /* != 0 for per-port options */
2460 u32 opt_array_index
= 0;
2461 bool opt_is_array
= false;
2462 struct team_option_inst
*opt_inst
;
2464 bool opt_found
= false;
2466 if (nla_type(nl_option
) != TEAM_ATTR_ITEM_OPTION
) {
2470 err
= nla_parse_nested(opt_attrs
, TEAM_ATTR_OPTION_MAX
,
2471 nl_option
, team_nl_option_policy
);
2474 if (!opt_attrs
[TEAM_ATTR_OPTION_NAME
] ||
2475 !opt_attrs
[TEAM_ATTR_OPTION_TYPE
]) {
2479 switch (nla_get_u8(opt_attrs
[TEAM_ATTR_OPTION_TYPE
])) {
2481 opt_type
= TEAM_OPTION_TYPE_U32
;
2484 opt_type
= TEAM_OPTION_TYPE_STRING
;
2487 opt_type
= TEAM_OPTION_TYPE_BINARY
;
2490 opt_type
= TEAM_OPTION_TYPE_BOOL
;
2493 opt_type
= TEAM_OPTION_TYPE_S32
;
2499 attr_data
= opt_attrs
[TEAM_ATTR_OPTION_DATA
];
2500 if (opt_type
!= TEAM_OPTION_TYPE_BOOL
&& !attr_data
) {
2505 opt_name
= nla_data(opt_attrs
[TEAM_ATTR_OPTION_NAME
]);
2506 attr
= opt_attrs
[TEAM_ATTR_OPTION_PORT_IFINDEX
];
2508 opt_port_ifindex
= nla_get_u32(attr
);
2510 attr
= opt_attrs
[TEAM_ATTR_OPTION_ARRAY_INDEX
];
2512 opt_is_array
= true;
2513 opt_array_index
= nla_get_u32(attr
);
2516 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
2517 struct team_option
*option
= opt_inst
->option
;
2518 struct team_gsetter_ctx ctx
;
2519 struct team_option_inst_info
*opt_inst_info
;
2522 opt_inst_info
= &opt_inst
->info
;
2523 tmp_ifindex
= opt_inst_info
->port
?
2524 opt_inst_info
->port
->dev
->ifindex
: 0;
2525 if (option
->type
!= opt_type
||
2526 strcmp(option
->name
, opt_name
) ||
2527 tmp_ifindex
!= opt_port_ifindex
||
2528 (option
->array_size
&& !opt_is_array
) ||
2529 opt_inst_info
->array_index
!= opt_array_index
)
2532 ctx
.info
= opt_inst_info
;
2534 case TEAM_OPTION_TYPE_U32
:
2535 ctx
.data
.u32_val
= nla_get_u32(attr_data
);
2537 case TEAM_OPTION_TYPE_STRING
:
2538 if (nla_len(attr_data
) > TEAM_STRING_MAX_LEN
) {
2542 ctx
.data
.str_val
= nla_data(attr_data
);
2544 case TEAM_OPTION_TYPE_BINARY
:
2545 ctx
.data
.bin_val
.len
= nla_len(attr_data
);
2546 ctx
.data
.bin_val
.ptr
= nla_data(attr_data
);
2548 case TEAM_OPTION_TYPE_BOOL
:
2549 ctx
.data
.bool_val
= attr_data
? true : false;
2551 case TEAM_OPTION_TYPE_S32
:
2552 ctx
.data
.s32_val
= nla_get_s32(attr_data
);
2557 err
= team_option_set(team
, opt_inst
, &ctx
);
2560 opt_inst
->changed
= true;
2561 list_add(&opt_inst
->tmp_list
, &opt_inst_list
);
2569 err
= team_nl_send_event_options_get(team
, &opt_inst_list
);
2572 team_nl_team_put(team
);
2578 static int team_nl_fill_one_port_get(struct sk_buff
*skb
,
2579 struct team_port
*port
)
2581 struct nlattr
*port_item
;
2583 port_item
= nla_nest_start(skb
, TEAM_ATTR_ITEM_PORT
);
2586 if (nla_put_u32(skb
, TEAM_ATTR_PORT_IFINDEX
, port
->dev
->ifindex
))
2588 if (port
->changed
) {
2589 if (nla_put_flag(skb
, TEAM_ATTR_PORT_CHANGED
))
2591 port
->changed
= false;
2593 if ((port
->removed
&&
2594 nla_put_flag(skb
, TEAM_ATTR_PORT_REMOVED
)) ||
2595 (port
->state
.linkup
&&
2596 nla_put_flag(skb
, TEAM_ATTR_PORT_LINKUP
)) ||
2597 nla_put_u32(skb
, TEAM_ATTR_PORT_SPEED
, port
->state
.speed
) ||
2598 nla_put_u8(skb
, TEAM_ATTR_PORT_DUPLEX
, port
->state
.duplex
))
2600 nla_nest_end(skb
, port_item
);
2604 nla_nest_cancel(skb
, port_item
);
2608 static int team_nl_send_port_list_get(struct team
*team
, u32 portid
, u32 seq
,
2609 int flags
, team_nl_send_func_t
*send_func
,
2610 struct team_port
*one_port
)
2612 struct nlattr
*port_list
;
2613 struct nlmsghdr
*nlh
;
2615 struct team_port
*port
;
2617 struct sk_buff
*skb
= NULL
;
2621 port
= list_first_entry_or_null(&team
->port_list
,
2622 struct team_port
, list
);
2625 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2629 hdr
= genlmsg_put(skb
, portid
, seq
, &team_nl_family
, flags
| NLM_F_MULTI
,
2630 TEAM_CMD_PORT_LIST_GET
);
2634 if (nla_put_u32(skb
, TEAM_ATTR_TEAM_IFINDEX
, team
->dev
->ifindex
))
2635 goto nla_put_failure
;
2636 port_list
= nla_nest_start(skb
, TEAM_ATTR_LIST_PORT
);
2638 goto nla_put_failure
;
2643 /* If one port is selected, called wants to send port list containing
2644 * only this port. Otherwise go through all listed ports and send all
2647 err
= team_nl_fill_one_port_get(skb
, one_port
);
2651 list_for_each_entry_from(port
, &team
->port_list
, list
) {
2652 err
= team_nl_fill_one_port_get(skb
, port
);
2654 if (err
== -EMSGSIZE
) {
2666 nla_nest_end(skb
, port_list
);
2667 genlmsg_end(skb
, hdr
);
2672 nlh
= nlmsg_put(skb
, portid
, seq
, NLMSG_DONE
, 0, flags
| NLM_F_MULTI
);
2674 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2680 return send_func(skb
, team
, portid
);
2685 genlmsg_cancel(skb
, hdr
);
2690 static int team_nl_cmd_port_list_get(struct sk_buff
*skb
,
2691 struct genl_info
*info
)
2696 team
= team_nl_team_get(info
);
2700 err
= team_nl_send_port_list_get(team
, info
->snd_portid
, info
->snd_seq
,
2701 NLM_F_ACK
, team_nl_send_unicast
, NULL
);
2703 team_nl_team_put(team
);
2708 static const struct genl_ops team_nl_ops
[] = {
2710 .cmd
= TEAM_CMD_NOOP
,
2711 .doit
= team_nl_cmd_noop
,
2712 .policy
= team_nl_policy
,
2715 .cmd
= TEAM_CMD_OPTIONS_SET
,
2716 .doit
= team_nl_cmd_options_set
,
2717 .policy
= team_nl_policy
,
2718 .flags
= GENL_ADMIN_PERM
,
2721 .cmd
= TEAM_CMD_OPTIONS_GET
,
2722 .doit
= team_nl_cmd_options_get
,
2723 .policy
= team_nl_policy
,
2724 .flags
= GENL_ADMIN_PERM
,
2727 .cmd
= TEAM_CMD_PORT_LIST_GET
,
2728 .doit
= team_nl_cmd_port_list_get
,
2729 .policy
= team_nl_policy
,
2730 .flags
= GENL_ADMIN_PERM
,
2734 static const struct genl_multicast_group team_nl_mcgrps
[] = {
2735 { .name
= TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME
, },
2738 static int team_nl_send_multicast(struct sk_buff
*skb
,
2739 struct team
*team
, u32 portid
)
2741 return genlmsg_multicast_netns(&team_nl_family
, dev_net(team
->dev
),
2742 skb
, 0, 0, GFP_KERNEL
);
2745 static int team_nl_send_event_options_get(struct team
*team
,
2746 struct list_head
*sel_opt_inst_list
)
2748 return team_nl_send_options_get(team
, 0, 0, 0, team_nl_send_multicast
,
2752 static int team_nl_send_event_port_get(struct team
*team
,
2753 struct team_port
*port
)
2755 return team_nl_send_port_list_get(team
, 0, 0, 0, team_nl_send_multicast
,
2759 static int team_nl_init(void)
2761 return genl_register_family_with_ops_groups(&team_nl_family
, team_nl_ops
,
2765 static void team_nl_fini(void)
2767 genl_unregister_family(&team_nl_family
);
2775 static void __team_options_change_check(struct team
*team
)
2778 struct team_option_inst
*opt_inst
;
2779 LIST_HEAD(sel_opt_inst_list
);
2781 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
2782 if (opt_inst
->changed
)
2783 list_add_tail(&opt_inst
->tmp_list
, &sel_opt_inst_list
);
2785 err
= team_nl_send_event_options_get(team
, &sel_opt_inst_list
);
2786 if (err
&& err
!= -ESRCH
)
2787 netdev_warn(team
->dev
, "Failed to send options change via netlink (err %d)\n",
2791 /* rtnl lock is held */
2793 static void __team_port_change_send(struct team_port
*port
, bool linkup
)
2797 port
->changed
= true;
2798 port
->state
.linkup
= linkup
;
2799 team_refresh_port_linkup(port
);
2801 struct ethtool_cmd ecmd
;
2803 err
= __ethtool_get_settings(port
->dev
, &ecmd
);
2805 port
->state
.speed
= ethtool_cmd_speed(&ecmd
);
2806 port
->state
.duplex
= ecmd
.duplex
;
2810 port
->state
.speed
= 0;
2811 port
->state
.duplex
= 0;
2814 err
= team_nl_send_event_port_get(port
->team
, port
);
2815 if (err
&& err
!= -ESRCH
)
2816 netdev_warn(port
->team
->dev
, "Failed to send port change of device %s via netlink (err %d)\n",
2817 port
->dev
->name
, err
);
2821 static void __team_carrier_check(struct team
*team
)
2823 struct team_port
*port
;
2826 if (team
->user_carrier_enabled
)
2829 team_linkup
= false;
2830 list_for_each_entry(port
, &team
->port_list
, list
) {
2838 netif_carrier_on(team
->dev
);
2840 netif_carrier_off(team
->dev
);
2843 static void __team_port_change_check(struct team_port
*port
, bool linkup
)
2845 if (port
->state
.linkup
!= linkup
)
2846 __team_port_change_send(port
, linkup
);
2847 __team_carrier_check(port
->team
);
2850 static void __team_port_change_port_added(struct team_port
*port
, bool linkup
)
2852 __team_port_change_send(port
, linkup
);
2853 __team_carrier_check(port
->team
);
2856 static void __team_port_change_port_removed(struct team_port
*port
)
2858 port
->removed
= true;
2859 __team_port_change_send(port
, false);
2860 __team_carrier_check(port
->team
);
2863 static void team_port_change_check(struct team_port
*port
, bool linkup
)
2865 struct team
*team
= port
->team
;
2867 mutex_lock(&team
->lock
);
2868 __team_port_change_check(port
, linkup
);
2869 mutex_unlock(&team
->lock
);
2873 /************************************
2874 * Net device notifier event handler
2875 ************************************/
2877 static int team_device_event(struct notifier_block
*unused
,
2878 unsigned long event
, void *ptr
)
2880 struct net_device
*dev
= netdev_notifier_info_to_dev(ptr
);
2881 struct team_port
*port
;
2883 port
= team_port_get_rtnl(dev
);
2889 if (netif_carrier_ok(dev
))
2890 team_port_change_check(port
, true);
2893 team_port_change_check(port
, false);
2896 if (netif_running(port
->dev
))
2897 team_port_change_check(port
,
2898 !!netif_carrier_ok(port
->dev
));
2900 case NETDEV_UNREGISTER
:
2901 team_del_slave(port
->team
->dev
, dev
);
2903 case NETDEV_FEAT_CHANGE
:
2904 team_compute_features(port
->team
);
2906 case NETDEV_PRECHANGEMTU
:
2907 /* Forbid to change mtu of underlaying device */
2908 if (!port
->team
->port_mtu_change_allowed
)
2911 case NETDEV_PRE_TYPE_CHANGE
:
2912 /* Forbid to change type of underlaying device */
2914 case NETDEV_RESEND_IGMP
:
2915 /* Propagate to master device */
2916 call_netdevice_notifiers(event
, port
->team
->dev
);
2922 static struct notifier_block team_notifier_block __read_mostly
= {
2923 .notifier_call
= team_device_event
,
2927 /***********************
2928 * Module init and exit
2929 ***********************/
2931 static int __init
team_module_init(void)
2935 register_netdevice_notifier(&team_notifier_block
);
2937 err
= rtnl_link_register(&team_link_ops
);
2941 err
= team_nl_init();
2948 rtnl_link_unregister(&team_link_ops
);
2951 unregister_netdevice_notifier(&team_notifier_block
);
2956 static void __exit
team_module_exit(void)
2959 rtnl_link_unregister(&team_link_ops
);
2960 unregister_netdevice_notifier(&team_notifier_block
);
2963 module_init(team_module_init
);
2964 module_exit(team_module_exit
);
2966 MODULE_LICENSE("GPL v2");
2967 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2968 MODULE_DESCRIPTION("Ethernet team device driver");
2969 MODULE_ALIAS_RTNL_LINK(DRV_NAME
);