459 					   struct net_device *failover_dev)  in net_failover_slave_pre_register()  argument
465 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_pre_register()
468 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_pre_register()
470 		netdev_err(failover_dev, "%s attempting to register as slave dev when %s already present\n",  in net_failover_slave_pre_register()
484 	if (failover_dev->features & NETIF_F_VLAN_CHALLENGED &&  in net_failover_slave_pre_register()
485 	    vlan_uses_dev(failover_dev)) {  in net_failover_slave_pre_register()
486 		netdev_err(failover_dev, "Device %s is VLAN challenged and failover device has VLAN set up\n",  in net_failover_slave_pre_register()
487 			   failover_dev->name);  in net_failover_slave_pre_register()
495 				       struct net_device *failover_dev)  in net_failover_slave_register()  argument
505 	err = dev_set_mtu(slave_dev, failover_dev->mtu);  in net_failover_slave_register()
507 		netdev_err(failover_dev, "unable to change mtu of %s to %u register failed\n",  in net_failover_slave_register()
508 			   slave_dev->name, failover_dev->mtu);  in net_failover_slave_register()
514 	if (netif_running(failover_dev)) {  in net_failover_slave_register()
517 			netdev_err(failover_dev, "Opening slave %s failed err:%d\n",  in net_failover_slave_register()
523 	netif_addr_lock_bh(failover_dev);  in net_failover_slave_register()
524 	dev_uc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
525 	dev_mc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
526 	netif_addr_unlock_bh(failover_dev);  in net_failover_slave_register()
528 	err = vlan_vids_add_by_dev(slave_dev, failover_dev);  in net_failover_slave_register()
530 		netdev_err(failover_dev, "Failed to add vlan ids to device %s err:%d\n",  in net_failover_slave_register()
535 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_register()
538 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_register()
548 		failover_dev->min_mtu = slave_dev->min_mtu;  in net_failover_slave_register()
549 		failover_dev->max_mtu = slave_dev->max_mtu;  in net_failover_slave_register()
553 	net_failover_compute_features(failover_dev);  in net_failover_slave_register()
557 	netdev_info(failover_dev, "failover %s slave:%s registered\n",  in net_failover_slave_register()
563 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
564 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
574 					     struct net_device *failover_dev)  in net_failover_slave_pre_unregister()  argument
579 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_pre_unregister()
590 					 struct net_device *failover_dev)  in net_failover_slave_unregister()  argument
596 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_unregister()
603 	vlan_vids_del_by_dev(slave_dev, failover_dev);  in net_failover_slave_unregister()
604 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
605 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
608 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_unregister()
609 	dev_get_stats(failover_dev, &nfo_info->failover_stats);  in net_failover_slave_unregister()
611 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_unregister()
617 			failover_dev->min_mtu = standby_dev->min_mtu;  in net_failover_slave_unregister()
618 			failover_dev->max_mtu = standby_dev->max_mtu;  in net_failover_slave_unregister()
624 	net_failover_compute_features(failover_dev);  in net_failover_slave_unregister()
626 	netdev_info(failover_dev, "failover %s slave:%s unregistered\n",  in net_failover_slave_unregister()
633 					  struct net_device *failover_dev)  in net_failover_slave_link_change()  argument
638 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_link_change()
648 		netif_carrier_on(failover_dev);  in net_failover_slave_link_change()
649 		netif_tx_wake_all_queues(failover_dev);  in net_failover_slave_link_change()
651 		dev_get_stats(failover_dev, &nfo_info->failover_stats);  in net_failover_slave_link_change()
652 		netif_carrier_off(failover_dev);  in net_failover_slave_link_change()
653 		netif_tx_stop_all_queues(failover_dev);  in net_failover_slave_link_change()
662 					  struct net_device *failover_dev)  in net_failover_slave_name_change()  argument
667 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_name_change()
709 	struct net_device *failover_dev;  in net_failover_create()  local
716 	failover_dev = alloc_etherdev_mq(sizeof(struct net_failover_info), 16);  in net_failover_create()
717 	if (!failover_dev) {  in net_failover_create()
722 	dev_net_set(failover_dev, dev_net(standby_dev));  in net_failover_create()
723 	SET_NETDEV_DEV(failover_dev, dev);  in net_failover_create()
725 	failover_dev->netdev_ops = &failover_dev_ops;  in net_failover_create()
726 	failover_dev->ethtool_ops = &failover_ethtool_ops;  in net_failover_create()
729 	failover_dev->priv_flags |= IFF_UNICAST_FLT | IFF_NO_QUEUE;  in net_failover_create()
730 	failover_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE |  in net_failover_create()
734 	failover_dev->features |= NETIF_F_LLTX;  in net_failover_create()
737 	failover_dev->features |= NETIF_F_NETNS_LOCAL;  in net_failover_create()
739 	failover_dev->hw_features = FAILOVER_VLAN_FEATURES |  in net_failover_create()
744 	failover_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;  in net_failover_create()
745 	failover_dev->features |= failover_dev->hw_features;  in net_failover_create()
747 	memcpy(failover_dev->dev_addr, standby_dev->dev_addr,  in net_failover_create()
748 	       failover_dev->addr_len);  in net_failover_create()
750 	failover_dev->min_mtu = standby_dev->min_mtu;  in net_failover_create()
751 	failover_dev->max_mtu = standby_dev->max_mtu;  in net_failover_create()
753 	err = register_netdev(failover_dev);  in net_failover_create()
759 	netif_carrier_off(failover_dev);  in net_failover_create()
761 	failover = failover_register(failover_dev, &net_failover_ops);  in net_failover_create()
770 	unregister_netdev(failover_dev);  in net_failover_create()
772 	free_netdev(failover_dev);  in net_failover_create()
792 	struct net_device *failover_dev;  in net_failover_destroy()  local
798 	failover_dev = rcu_dereference(failover->failover_dev);  in net_failover_destroy()
799 	nfo_info = netdev_priv(failover_dev);  in net_failover_destroy()
801 	netif_device_detach(failover_dev);  in net_failover_destroy()
815 	unregister_netdevice(failover_dev);  in net_failover_destroy()
819 	free_netdev(failover_dev);  in net_failover_destroy()