search for: dev_hold

...delayed_work(&ndev_ctx->vf_takeover, VF_TAKEOVER_INT); - call_netdevice_notifiers(NETDEV_JOIN, vf_netdev); - netdev_info(vf_netdev, "joined to %s\n", ndev->name); - return 0; -upper_link_failed: - netdev_rx_handler_unregister(vf_netdev); -rx_handler_failed: - return ret; + dev_hold(vf_netdev); + rcu_assign_pointer(ndev_ctx->vf_netdev, vf_netdev); + + return 0; } static void __netvsc_vf_setup(struct net_device *ndev, @@ -1914,85 +1851,82 @@ static void netvsc_vf_setup(struct work_struct *w) rtnl_unlock(); } -static int netvsc_register_vf(struct net_device *vf_netde...

...delayed_work(&ndev_ctx->vf_takeover, VF_TAKEOVER_INT); - call_netdevice_notifiers(NETDEV_JOIN, vf_netdev); - netdev_info(vf_netdev, "joined to %s\n", ndev->name); - return 0; -upper_link_failed: - netdev_rx_handler_unregister(vf_netdev); -rx_handler_failed: - return ret; + dev_hold(vf_netdev); + rcu_assign_pointer(ndev_ctx->vf_netdev, vf_netdev); + + return 0; } static void __netvsc_vf_setup(struct net_device *ndev, @@ -1914,85 +1851,82 @@ static void netvsc_vf_setup(struct work_struct *w) rtnl_unlock(); } -static int netvsc_register_vf(struct net_device *vf_netde...

On Thu, Apr 16, 2009 at 01:08:18AM -0000, Herbert Xu wrote: > On Wed, Apr 15, 2009 at 10:38:34PM +0800, Herbert Xu wrote: > > > > So how about this? We replace the dev destructor with our own that > > doesn't immediately call free_netdev. We only call free_netdev once > > all tun fd's attached to the device have been closed. > > Here's the patch.

On Thu, Apr 16, 2009 at 01:08:18AM -0000, Herbert Xu wrote: > On Wed, Apr 15, 2009 at 10:38:34PM +0800, Herbert Xu wrote: > > > > So how about this? We replace the dev destructor with our own that > > doesn't immediately call free_netdev. We only call free_netdev once > > all tun fd's attached to the device have been closed. > > Here's the patch.

...f ((p = dev->br_port) == NULL) + if ((p = dev->br_port) == NULL || p->br != br) return -EINVAL; br_stp_disable_port(p); @@ -231,6 +232,9 @@ if (dev->hard_start_xmit == br_dev_xmit) return -ELOOP; + + if (!is_valid_ether_addr(dev->dev_addr)) + return -EADDRNOTAVAIL; dev_hold(dev); write_lock_bh(&br->lock);

...p(&br->dev); br->lock = RW_LOCK_UNLOCKED; br->hash_lock = RW_LOCK_UNLOCKED; register_netdev(&br->dev); // netif_start_queue(&br->dev); ethdev = dev_get_by_name("eth0"); ethdev->br_port = (struct net_bridge_port *)br; dev_set_promiscuity(ethdev,1); dev_hold(ethdev); return br; } static void Bridge_passup(struct sk_buff *skb) { skb->dev = &brg->dev; skb->pkt_type = PACKET_HOST; skb_push(skb,ETH_HLEN); skb->protocol = eth_type_trans(skb,&brg->dev); netif_rx(skb); return; } void Bridge_dev_setup(struct net_device *dev) {...

The main motivation for this patch is to enable cloud service providers to provide an accelerated datapath to virtio-net enabled VMs in a transparent manner with no/minimal guest userspace changes. This also enables hypervisor controlled live migration to be supported with VMs that have direct attached SR-IOV VF devices. Patch 1 introduces a new feature bit VIRTIO_NET_F_BACKUP that can be used

The main motivation for this patch is to enable cloud service providers to provide an accelerated datapath to virtio-net enabled VMs in a transparent manner with no/minimal guest userspace changes. This also enables hypervisor controlled live migration to be supported with VMs that have direct attached SR-IOV VF devices. Patch 1 introduces a new feature bit VIRTIO_NET_F_STANDBY that can be used

...*kobj)); dev_put(queue->dev); @@ -767,21 +763,27 @@ static int rx_queue_add_kobject(struct net_device *net, int index) kobject_put(kobj); return error; } + if (net->sysfs_rx_queue_group) + sysfs_create_group(kobj, net->sysfs_rx_queue_group); kobject_uevent(kobj, KOBJ_ADD); dev_hold(queue->dev); return error; } -#endif /* CONFIG_RPS */ +#endif /* CONFIG_SYFS */ int net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num) { -#ifdef CONFIG_RPS +#ifdef CONFIG_SYSFS int i; int error = 0; +#ifndef CONFIG_RPS + if (!net->sysfs_rx_queue_gro...

...*kobj)); dev_put(queue->dev); @@ -767,21 +763,27 @@ static int rx_queue_add_kobject(struct net_device *net, int index) kobject_put(kobj); return error; } + if (net->sysfs_rx_queue_group) + sysfs_create_group(kobj, net->sysfs_rx_queue_group); kobject_uevent(kobj, KOBJ_ADD); dev_hold(queue->dev); return error; } -#endif /* CONFIG_RPS */ +#endif /* CONFIG_SYFS */ int net_rx_queue_update_kobjects(struct net_device *net, int old_num, int new_num) { -#ifdef CONFIG_RPS +#ifdef CONFIG_SYSFS int i; int error = 0; +#ifndef CONFIG_RPS + if (!net->sysfs_rx_queue_gro...

The main motivation for this patch is to enable cloud service providers to provide an accelerated datapath to virtio-net enabled VMs in a transparent manner with no/minimal guest userspace changes. This also enables hypervisor controlled live migration to be supported with VMs that have direct attached SR-IOV VF devices. Patch 1 introduces a new feature bit VIRTIO_NET_F_BACKUP that can be used

...--git a/drivers/net/tun.c b/drivers/net/tun.c index 4fdfa2a..18f8876 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -144,6 +144,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) err = 0; tfile->tun = tun; tun->tfile = tfile; + tun->socket.file = file; dev_hold(tun->dev); sock_hold(tun->socket.sk); atomic_inc(&tfile->count); @@ -158,6 +159,7 @@ static void __tun_detach(struct tun_struct *tun) /* Detach from net device */ netif_tx_lock_bh(tun->dev); tun->tfile = NULL; + tun->socket.file = NULL; netif_tx_unlock_bh(tun->d...

...--git a/drivers/net/tun.c b/drivers/net/tun.c index 4fdfa2a..18f8876 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -144,6 +144,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) err = 0; tfile->tun = tun; tun->tfile = tfile; + tun->socket.file = file; dev_hold(tun->dev); sock_hold(tun->socket.sk); atomic_inc(&tfile->count); @@ -158,6 +159,7 @@ static void __tun_detach(struct tun_struct *tun) /* Detach from net device */ netif_tx_lock_bh(tun->dev); tun->tfile = NULL; + tun->socket.file = NULL; netif_tx_unlock_bh(tun->d...

...--git a/drivers/net/tun.c b/drivers/net/tun.c index 4fdfa2a..18f8876 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -144,6 +144,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) err = 0; tfile->tun = tun; tun->tfile = tfile; + tun->socket.file = file; dev_hold(tun->dev); sock_hold(tun->socket.sk); atomic_inc(&tfile->count); @@ -158,6 +159,7 @@ static void __tun_detach(struct tun_struct *tun) /* Detach from net device */ netif_tx_lock_bh(tun->dev); tun->tfile = NULL; + tun->socket.file = NULL; netif_tx_unlock_bh(tun->d...

...--git a/drivers/net/tun.c b/drivers/net/tun.c index 4fdfa2a..18f8876 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -144,6 +144,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) err = 0; tfile->tun = tun; tun->tfile = tfile; + tun->socket.file = file; dev_hold(tun->dev); sock_hold(tun->socket.sk); atomic_inc(&tfile->count); @@ -158,6 +159,7 @@ static void __tun_detach(struct tun_struct *tun) /* Detach from net device */ netif_tx_lock_bh(tun->dev); tun->tfile = NULL; + tun->socket.file = NULL; netif_tx_unlock_bh(tun->d...

...r_dev, "unable to change mtu of %s to %u register failed\n", > + slave_dev->name, failover_dev->mtu); > + goto err_set_mtu; > + } > + > + finfo = netdev_priv(failover_dev); > + standby = (slave_dev->dev.parent == failover_dev->dev.parent); > + > + dev_hold(slave_dev); > + > + if (standby) { > + rcu_assign_pointer(finfo->standby_dev, slave_dev); > + dev_get_stats(finfo->standby_dev, &finfo->standby_stats); > + } else { > + rcu_assign_pointer(finfo->primary_dev, slave_dev); > + dev_get_stats(finfo->primary_de...

...r_dev, "unable to change mtu of %s to %u register failed\n", > + slave_dev->name, failover_dev->mtu); > + goto err_set_mtu; > + } > + > + finfo = netdev_priv(failover_dev); > + standby = (slave_dev->dev.parent == failover_dev->dev.parent); > + > + dev_hold(slave_dev); > + > + if (standby) { > + rcu_assign_pointer(finfo->standby_dev, slave_dev); > + dev_get_stats(finfo->standby_dev, &finfo->standby_stats); > + } else { > + rcu_assign_pointer(finfo->primary_dev, slave_dev); > + dev_get_stats(finfo->primary_de...

...if (bypass_ops) { >+ if (!bypass_ops->slave_join) >+ return -EINVAL; >+ >+ return bypass_ops->slave_join(slave_netdev, bypass_netdev); >+ } >+ >+ bi = netdev_priv(bypass_netdev); >+ backup = (slave_netdev->dev.parent == bypass_netdev->dev.parent); >+ >+ dev_hold(slave_netdev); >+ >+ if (backup) { >+ rcu_assign_pointer(bi->backup_netdev, slave_netdev); >+ dev_get_stats(bi->backup_netdev, &bi->backup_stats); >+ } else { >+ rcu_assign_pointer(bi->active_netdev, slave_netdev); >+ dev_get_stats(bi->active_netdev, &amp...

...if (bypass_ops) { >+ if (!bypass_ops->slave_join) >+ return -EINVAL; >+ >+ return bypass_ops->slave_join(slave_netdev, bypass_netdev); >+ } >+ >+ bi = netdev_priv(bypass_netdev); >+ backup = (slave_netdev->dev.parent == bypass_netdev->dev.parent); >+ >+ dev_hold(slave_netdev); >+ >+ if (backup) { >+ rcu_assign_pointer(bi->backup_netdev, slave_netdev); >+ dev_get_stats(bi->backup_netdev, &bi->backup_stats); >+ } else { >+ rcu_assign_pointer(bi->active_netdev, slave_netdev); >+ dev_get_stats(bi->active_netdev, &amp...

...uct bypass_info *bi; + bool backup; + + if (bypass_ops) { + if (!bypass_ops->slave_join) + return -EINVAL; + + return bypass_ops->slave_join(slave_netdev, bypass_netdev); + } + + bi = netdev_priv(bypass_netdev); + backup = (slave_netdev->dev.parent == bypass_netdev->dev.parent); + + dev_hold(slave_netdev); + + if (backup) { + rcu_assign_pointer(bi->backup_netdev, slave_netdev); + dev_get_stats(bi->backup_netdev, &bi->backup_stats); + } else { + rcu_assign_pointer(bi->active_netdev, slave_netdev); + dev_get_stats(bi->active_netdev, &bi->active_stats); + by...