search for: slave_dev

...@ > +/* 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_...

...@ > +/* 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_...

...l +++ b/include/net/net_failover.h @@ -0,0 +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...

.../null +++ b/include/net/failover.h @@ -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, + st...

...; + netif_tx_wake_all_queues(dev); + } + + return 0; + +err_standby_open: + dev_close(primary_dev); +err_primary_open: + netif_tx_disable(dev); + return err; +} + +static int net_failover_close(struct net_device *dev) +{ + struct net_failover_info *nfo_info = netdev_priv(dev); + struct net_device *slave_dev; + + netif_tx_disable(dev); + + slave_dev = rtnl_dereference(nfo_info->primary_dev); + if (slave_dev) + dev_close(slave_dev); + + slave_dev = rtnl_dereference(nfo_info->standby_dev); + if (slave_dev) + dev_close(slave_dev); + + return 0; +} + +static netdev_tx_t net_failover_drop_xmit(struc...

...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 (*sl...

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

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

...--- /dev/null +++ b/include/net/failover.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,...

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

...SY; > > write_seqcount_begin(&devnet_rename_seq); > diff --git a/net/core/failover.c b/net/core/failover.c > index 4a92a98..34c5c87 100644 > --- a/net/core/failover.c > +++ b/net/core/failover.c > @@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev) > goto err_upper_link; > } > > - slave_dev->priv_flags |= IFF_FAILOVER_SLAVE; > + slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_SLAVE_RENAME_OK); > > if (fops && fops->slave_register && > !fops->slave_register(slave_dev, fai...

...SY; > > write_seqcount_begin(&devnet_rename_seq); > diff --git a/net/core/failover.c b/net/core/failover.c > index 4a92a98..34c5c87 100644 > --- a/net/core/failover.c > +++ b/net/core/failover.c > @@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev) > goto err_upper_link; > } > > - slave_dev->priv_flags |= IFF_FAILOVER_SLAVE; > + slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_SLAVE_RENAME_OK); > > if (fops && fops->slave_register && > !fops->slave_register(slave_dev, fai...

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...

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...

...> > write_seqcount_begin(&devnet_rename_seq); > diff --git a/net/core/failover.c b/net/core/failover.c > index 4a92a98..34c5c87 100644 > --- a/net/core/failover.c > +++ b/net/core/failover.c > @@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev) > goto err_upper_link; > } > > - slave_dev->priv_flags |= IFF_FAILOVER_SLAVE; > + slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_SLAVE_RENAME_OK); > > if (fops && fops->slave_register && > !fops->slave_register(slave_de...

...lover master is up"); No module parameters please. If you need to set something do it using rtnl_link_ops. Thanks. > > static struct net_device *failover_get_bymac(u8 *mac, struct failover_ops **ops) > { >@@ -81,13 +86,15 @@ static int failover_slave_register(struct net_device *slave_dev) > } > > slave_dev->priv_flags |= IFF_FAILOVER_SLAVE; >+ if (slave_rename_ok) >+ slave_dev->priv_flags |= IFF_SLAVE_RENAME_OK; > > if (fops && fops->slave_register && > !fops->slave_register(slave_dev, failover_dev)) > return NOTIF...

...; +MODULE_PARM_DESC(slave_rename_ok, > + "If set allow renaming the slave when failover master is up"); > > static struct net_device *failover_get_bymac(u8 *mac, struct failover_ops **ops) > { > @@ -81,13 +86,15 @@ static int failover_slave_register(struct net_device *slave_dev) > } > > slave_dev->priv_flags |= IFF_FAILOVER_SLAVE; > + if (slave_rename_ok) > + slave_dev->priv_flags |= IFF_SLAVE_RENAME_OK; > > if (fops && fops->slave_register && > !fops->slave_register(slave_dev, failover_dev)) > ret...

...ite_seqcount_begin(&devnet_rename_seq); >> diff --git a/net/core/failover.c b/net/core/failover.c >> index 4a92a98..34c5c87 100644 >> --- a/net/core/failover.c >> +++ b/net/core/failover.c >> @@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev) >> goto err_upper_link; >> } >> >> - slave_dev->priv_flags |= IFF_FAILOVER_SLAVE; >> + slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_SLAVE_RENAME_OK); >> >> if (fops && fops->slave_register && >> !fops->sla...