search for: failover_dev

...0 */ > +/* Copyright (c) 2018, Intel Corporation. */ > + > +#ifndef _NET_FAILOVER_H > +#define _NET_FAILOVER_H > + > +#include <linux/netdevice.h> > + > +struct failover_ops { > + int (*slave_pre_register)(struct net_device *slave_dev, > + struct net_device *failover_dev); > + int (*slave_join)(struct net_device *slave_dev, > + struct net_device *failover_dev); > + int (*slave_pre_unregister)(struct net_device *slave_dev, > + struct net_device *failover_dev); > + int (*slave_release)(struct net_device *slave_dev, > + struct net_d...

...0 */ > +/* Copyright (c) 2018, Intel Corporation. */ > + > +#ifndef _NET_FAILOVER_H > +#define _NET_FAILOVER_H > + > +#include <linux/netdevice.h> > + > +struct failover_ops { > + int (*slave_pre_register)(struct net_device *slave_dev, > + struct net_device *failover_dev); > + int (*slave_join)(struct net_device *slave_dev, > + struct net_device *failover_dev); > + int (*slave_pre_unregister)(struct net_device *slave_dev, > + struct net_device *failover_dev); > + int (*slave_release)(struct net_device *slave_dev, > + struct net_d...

...-0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018, Intel Corporation. */ + +#ifndef _NET_FAILOVER_H +#define _NET_FAILOVER_H + +#include <linux/netdevice.h> + +struct failover_ops { + int (*slave_pre_register)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_join)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_pre_unregister)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_release)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*...

...,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018, Intel Corporation. */ + +#ifndef _NET_FAILOVER_H +#define _NET_FAILOVER_H + +#include <linux/netdevice.h> + +struct net_failover_ops { + int (*slave_register)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_unregister)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_link_change)(struct net_device *slave_dev, + struct net_device *failover_dev); +}; + +struct net_failover { + struct list_head list; + struct net_device __rcu *failover_dev; + struct n...

...tel Corporation. */ >> + >> +#ifndef _NET_FAILOVER_H >> +#define _NET_FAILOVER_H >> + >> +#include <linux/netdevice.h> >> + >> +struct failover_ops { >> + int (*slave_pre_register)(struct net_device *slave_dev, >> + struct net_device *failover_dev); >> + int (*slave_join)(struct net_device *slave_dev, >> + struct net_device *failover_dev); >> + int (*slave_pre_unregister)(struct net_device *slave_dev, >> + struct net_device *failover_dev); >> + int (*slave_release)(struct net_device *slave_dev, >&g...

...*slave_dev; + + slave_dev = rcu_dereference(nfo_info->primary_dev); + if (slave_dev) + vlan_vid_del(slave_dev, proto, vid); + + slave_dev = rcu_dereference(nfo_info->standby_dev); + if (slave_dev) + vlan_vid_del(slave_dev, proto, vid); + + return 0; +} + +static const struct net_device_ops failover_dev_ops = { + .ndo_open = net_failover_open, + .ndo_stop = net_failover_close, + .ndo_start_xmit = net_failover_start_xmit, + .ndo_select_queue = net_failover_select_queue, + .ndo_get_stats64 = net_failover_get_stats, + .ndo_change_mtu = net_failover_change_mtu, + .ndo_set_rx_mode = net_failover_se...

...ver.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018, Intel Corporation. */ + +#ifndef _FAILOVER_H +#define _FAILOVER_H + +#include <linux/netdevice.h> + +struct failover_ops { + int (*slave_pre_register)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_register)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_pre_unregister)(struct net_device *slave_dev, + struct net_device *failover_dev); + int (*slave_unregister)(struct net_device *slave_dev, + struct net_device *failover_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_STANDBY 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

This is another update based on feedback from MST and Stephen on the last patchset. Hopefully this series can be integrated and any further enhancements can be made on top of this patchset. v8: - Made the failover managment routines more robust by updating the feature bits/other fields in the failover netdev when slave netdevs are registered/unregistered. (mst) - added support for handling

On Mon, 7 May 2018 15:10:44 -0700 Sridhar Samudrala <sridhar.samudrala at intel.com> wrote: > +static struct net_device *net_failover_get_bymac(u8 *mac, > + struct net_failover_ops **ops) > +{ > + struct net_device *failover_dev; > + struct net_failover *failover; > + > + spin_lock(&net_failover_lock); > + list_for_each_entry(failover, &net_failover_list, list) { > + failover_dev = rtnl_dereference(failover->failover_dev); > + if (ether_addr_equal(failover_dev->perm_addr, mac)) { > +...

On Mon, 7 May 2018 15:10:44 -0700 Sridhar Samudrala <sridhar.samudrala at intel.com> wrote: > +static struct net_device *net_failover_get_bymac(u8 *mac, > + struct net_failover_ops **ops) > +{ > + struct net_device *failover_dev; > + struct net_failover *failover; > + > + spin_lock(&net_failover_lock); > + list_for_each_entry(failover, &net_failover_list, list) { > + failover_dev = rtnl_dereference(failover->failover_dev); > + if (ether_addr_equal(failover_dev->perm_addr, mac)) { > +...

...dev with the same MAC gets > + * registered as primary netdev. > + * > + * Return: pointer to failover instance > + */ > +struct net_failover *net_failover_create(struct net_device *standby_dev) > +{ > + struct device *dev = standby_dev->dev.parent; > + struct net_device *failover_dev; > + struct net_failover *failover; > + int err; > + > + /* Alloc at least 2 queues, for now we are going with 16 assuming > + * that VF devices being enslaved won't have too many queues. > + */ > + failover_dev = alloc_etherdev_mq(sizeof(struct net_failover_info), 16); &...

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 failover module that provides a generic interface for

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 failover module that provides a generic interface for

On Mon, 7 May 2018 15:10:44 -0700 Sridhar Samudrala <sridhar.samudrala at intel.com> wrote: > + if (netif_running(failover_dev)) { > + err = dev_open(slave_dev); > + if (err && (err != -EBUSY)) { > + netdev_err(failover_dev, "Opening slave %s failed err:%d\n", > + slave_dev->name, err); > + goto err_dev_open; > + } > + } > + > + netif_addr_lock_bh(failover_dev);...

On Fri, Apr 20, 2018 at 08:21:00AM -0700, Samudrala, Sridhar wrote: > > > + finfo = netdev_priv(failover_dev); > > > + > > > + primary_dev = rtnl_dereference(finfo->primary_dev); > > > + standby_dev = rtnl_dereference(finfo->standby_dev); > > > + > > > + if (slave_dev != primary_dev && slave_dev != standby_dev) > > > + goto done; > &g...

...M, Stephen Hemminger wrote: > On Mon, 7 May 2018 15:10:44 -0700 > Sridhar Samudrala <sridhar.samudrala at intel.com> wrote: > >> +static struct net_device *net_failover_get_bymac(u8 *mac, >> + struct net_failover_ops **ops) >> +{ >> + struct net_device *failover_dev; >> + struct net_failover *failover; >> + >> + spin_lock(&net_failover_lock); >> + list_for_each_entry(failover, &net_failover_list, list) { >> + failover_dev = rtnl_dereference(failover->failover_dev); >> + if (ether_addr_equal(failover_dev->perm...

Sat, Apr 28, 2018 at 11:06:01AM CEST, jiri at resnulli.us wrote: >Fri, Apr 27, 2018 at 07:06:58PM CEST, sridhar.samudrala at intel.com wrote: [...] >>+ >>+ err = netdev_rx_handler_register(slave_dev, net_failover_handle_frame, >>+ failover_dev); >>+ if (err) { >>+ netdev_err(slave_dev, "can not register failover rx handler (err = %d)\n", >>+ err); >>+ goto err_handler_register; >>+ } >>+ >>+ err = netdev_upper_dev_link(slave_dev, failover_dev, NULL); > >Please use netdev_ma...

Sat, Apr 28, 2018 at 11:06:01AM CEST, jiri at resnulli.us wrote: >Fri, Apr 27, 2018 at 07:06:58PM CEST, sridhar.samudrala at intel.com wrote: [...] >>+ >>+ err = netdev_rx_handler_register(slave_dev, net_failover_handle_frame, >>+ failover_dev); >>+ if (err) { >>+ netdev_err(slave_dev, "can not register failover rx handler (err = %d)\n", >>+ err); >>+ goto err_handler_register; >>+ } >>+ >>+ err = netdev_upper_dev_link(slave_dev, failover_dev, NULL); > >Please use netdev_ma...