462 					   struct net_device *failover_dev)  in net_failover_slave_pre_register()  argument
468 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_pre_register()
471 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_pre_register()
473 		netdev_err(failover_dev, "%s attempting to register as slave dev when %s already present\n",  in net_failover_slave_pre_register()
487 	if (failover_dev->features & NETIF_F_VLAN_CHALLENGED &&  in net_failover_slave_pre_register()
488 	    vlan_uses_dev(failover_dev)) {  in net_failover_slave_pre_register()
489 		netdev_err(failover_dev, "Device %s is VLAN challenged and failover device has VLAN set up\n",  in net_failover_slave_pre_register()
490 			   failover_dev->name);  in net_failover_slave_pre_register()
498 				       struct net_device *failover_dev)  in net_failover_slave_register()  argument
508 	err = dev_set_mtu(slave_dev, failover_dev->mtu);  in net_failover_slave_register()
510 		netdev_err(failover_dev, "unable to change mtu of %s to %u register failed\n",  in net_failover_slave_register()
511 			   slave_dev->name, failover_dev->mtu);  in net_failover_slave_register()
517 	if (netif_running(failover_dev)) {  in net_failover_slave_register()
520 			netdev_err(failover_dev, "Opening slave %s failed err:%d\n",  in net_failover_slave_register()
526 	netif_addr_lock_bh(failover_dev);  in net_failover_slave_register()
527 	dev_uc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
528 	dev_mc_sync_multiple(slave_dev, failover_dev);  in net_failover_slave_register()
529 	netif_addr_unlock_bh(failover_dev);  in net_failover_slave_register()
531 	err = vlan_vids_add_by_dev(slave_dev, failover_dev);  in net_failover_slave_register()
533 		netdev_err(failover_dev, "Failed to add vlan ids to device %s err:%d\n",  in net_failover_slave_register()
538 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_register()
541 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_register()
551 		failover_dev->min_mtu = slave_dev->min_mtu;  in net_failover_slave_register()
552 		failover_dev->max_mtu = slave_dev->max_mtu;  in net_failover_slave_register()
556 	net_failover_compute_features(failover_dev);  in net_failover_slave_register()
560 	netdev_info(failover_dev, "failover %s slave:%s registered\n",  in net_failover_slave_register()
566 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
567 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_register()
577 					     struct net_device *failover_dev)  in net_failover_slave_pre_unregister()  argument
582 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_pre_unregister()
593 					 struct net_device *failover_dev)  in net_failover_slave_unregister()  argument
599 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_unregister()
606 	vlan_vids_del_by_dev(slave_dev, failover_dev);  in net_failover_slave_unregister()
607 	dev_uc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
608 	dev_mc_unsync(slave_dev, failover_dev);  in net_failover_slave_unregister()
611 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_unregister()
612 	dev_get_stats(failover_dev, &nfo_info->failover_stats);  in net_failover_slave_unregister()
614 	slave_is_standby = slave_dev->dev.parent == failover_dev->dev.parent;  in net_failover_slave_unregister()
620 			failover_dev->min_mtu = standby_dev->min_mtu;  in net_failover_slave_unregister()
621 			failover_dev->max_mtu = standby_dev->max_mtu;  in net_failover_slave_unregister()
627 	net_failover_compute_features(failover_dev);  in net_failover_slave_unregister()
629 	netdev_info(failover_dev, "failover %s slave:%s unregistered\n",  in net_failover_slave_unregister()
636 					  struct net_device *failover_dev)  in net_failover_slave_link_change()  argument
641 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_link_change()
651 		netif_carrier_on(failover_dev);  in net_failover_slave_link_change()
652 		netif_tx_wake_all_queues(failover_dev);  in net_failover_slave_link_change()
654 		dev_get_stats(failover_dev, &nfo_info->failover_stats);  in net_failover_slave_link_change()
655 		netif_carrier_off(failover_dev);  in net_failover_slave_link_change()
656 		netif_tx_stop_all_queues(failover_dev);  in net_failover_slave_link_change()
665 					  struct net_device *failover_dev)  in net_failover_slave_name_change()  argument
670 	nfo_info = netdev_priv(failover_dev);  in net_failover_slave_name_change()
712 	struct net_device *failover_dev;  in net_failover_create()  local
719 	failover_dev = alloc_etherdev_mq(sizeof(struct net_failover_info), 16);  in net_failover_create()
720 	if (!failover_dev) {  in net_failover_create()
725 	dev_net_set(failover_dev, dev_net(standby_dev));  in net_failover_create()
726 	SET_NETDEV_DEV(failover_dev, dev);  in net_failover_create()
728 	failover_dev->netdev_ops = &failover_dev_ops;  in net_failover_create()
729 	failover_dev->ethtool_ops = &failover_ethtool_ops;  in net_failover_create()
732 	failover_dev->priv_flags |= IFF_UNICAST_FLT | IFF_NO_QUEUE;  in net_failover_create()
733 	failover_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE |  in net_failover_create()
737 	failover_dev->features |= NETIF_F_LLTX;  in net_failover_create()
740 	failover_dev->features |= NETIF_F_NETNS_LOCAL;  in net_failover_create()
742 	failover_dev->hw_features = FAILOVER_VLAN_FEATURES |  in net_failover_create()
747 	failover_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;  in net_failover_create()
748 	failover_dev->features |= failover_dev->hw_features;  in net_failover_create()
750 	memcpy(failover_dev->dev_addr, standby_dev->dev_addr,  in net_failover_create()
751 	       failover_dev->addr_len);  in net_failover_create()
753 	failover_dev->min_mtu = standby_dev->min_mtu;  in net_failover_create()
754 	failover_dev->max_mtu = standby_dev->max_mtu;  in net_failover_create()
756 	err = register_netdev(failover_dev);  in net_failover_create()
762 	netif_carrier_off(failover_dev);  in net_failover_create()
764 	failover = failover_register(failover_dev, &net_failover_ops);  in net_failover_create()
773 	unregister_netdev(failover_dev);  in net_failover_create()
775 	free_netdev(failover_dev);  in net_failover_create()
795 	struct net_device *failover_dev;  in net_failover_destroy()  local
801 	failover_dev = rcu_dereference(failover->failover_dev);  in net_failover_destroy()
802 	nfo_info = netdev_priv(failover_dev);  in net_failover_destroy()
804 	netif_device_detach(failover_dev);  in net_failover_destroy()
818 	unregister_netdevice(failover_dev);  in net_failover_destroy()
822 	free_netdev(failover_dev);  in net_failover_destroy()