search for: failover_close

...ure why we need to get stats from lower devs here? link down is often indication of a hardware problem. lower dev might stop responding down the road. > > > +static const struct net_device_ops failover_dev_ops = { > > > + .ndo_open = failover_open, > > > + .ndo_stop = failover_close, > > > + .ndo_start_xmit = failover_start_xmit, > > > + .ndo_select_queue = failover_select_queue, > > > + .ndo_get_stats64 = failover_get_stats, > > > + .ndo_change_mtu = failover_change_mtu, > > > + .ndo_set_rx_mode = failover_set_rx_mode, > >...

...> link down is often indication of a hardware problem. > lower dev might stop responding down the road. > >> > > +static const struct net_device_ops failover_dev_ops = { >> > > + .ndo_open = failover_open, >> > > + .ndo_stop = failover_close, >> > > + .ndo_start_xmit = failover_start_xmit, >> > > + .ndo_select_queue = failover_select_queue, >> > > + .ndo_get_stats64 = failover_get_stats, >> > > + .ndo_change_mtu = failover_change_mtu, >> > > + .ndo...

...tandby_dev) { > + err = dev_open(standby_dev); > + if (err) > + goto err_standby_open; > + } > + > + return 0; > + > +err_standby_open: > + dev_close(primary_dev); > +err_primary_open: > + netif_tx_disable(dev); > + return err; > +} > + > +static int failover_close(struct net_device *dev) > +{ > + struct failover_info *finfo = netdev_priv(dev); > + struct net_device *slave_dev; > + > + netif_tx_disable(dev); > + > + slave_dev = rtnl_dereference(finfo->primary_dev); > + if (slave_dev) > + dev_close(slave_dev); > + > + slave...

...tandby_dev) { > + err = dev_open(standby_dev); > + if (err) > + goto err_standby_open; > + } > + > + return 0; > + > +err_standby_open: > + dev_close(primary_dev); > +err_primary_open: > + netif_tx_disable(dev); > + return err; > +} > + > +static int failover_close(struct net_device *dev) > +{ > + struct failover_info *finfo = netdev_priv(dev); > + struct net_device *slave_dev; > + > + netif_tx_disable(dev); > + > + slave_dev = rtnl_dereference(finfo->primary_dev); > + if (slave_dev) > + dev_close(slave_dev); > + > + slave...

...pen; + } + + standby_dev = rtnl_dereference(finfo->standby_dev); + if (standby_dev) { + err = dev_open(standby_dev); + if (err) + goto err_standby_open; + } + + return 0; + +err_standby_open: + dev_close(primary_dev); +err_primary_open: + netif_tx_disable(dev); + return err; +} + +static int failover_close(struct net_device *dev) +{ + struct failover_info *finfo = netdev_priv(dev); + struct net_device *slave_dev; + + netif_tx_disable(dev); + + slave_dev = rtnl_dereference(finfo->primary_dev); + if (slave_dev) + dev_close(slave_dev); + + slave_dev = rtnl_dereference(finfo->standby_dev); + if (s...

...gt; + if (err) >> + goto err_standby_open; >> + } >> + >> + return 0; >> + >> +err_standby_open: >> + dev_close(primary_dev); >> +err_primary_open: >> + netif_tx_disable(dev); >> + return err; >> +} >> + >> +static int failover_close(struct net_device *dev) >> +{ >> + struct failover_info *finfo = netdev_priv(dev); >> + struct net_device *slave_dev; >> + >> + netif_tx_disable(dev); >> + >> + slave_dev = rtnl_dereference(finfo->primary_dev); >> + if (slave_dev) >> + dev_c...

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