search for: datapth

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2018 Feb 20
3
[RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device
...on by - assigning the same MAC address to both VF and virtio interfaces - setting a BACKUP feature bit on virtio that enables virtio to transparently take ? over the VFs datapath. - only enable one datapath at anytime so that packets don't get looped back - during live migration enable virtio datapth, unplug vf on the source and replug ? vf on the destination. The VM is not expected and doesn't have any control of setting the MAC address or bringing up/down the links. This is the model that is currently supported with netvsc driver on Azure. > > >> and have it automaticall...
2018 Feb 20
3
[RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device
...on by - assigning the same MAC address to both VF and virtio interfaces - setting a BACKUP feature bit on virtio that enables virtio to transparently take ? over the VFs datapath. - only enable one datapath at anytime so that packets don't get looped back - during live migration enable virtio datapth, unplug vf on the source and replug ? vf on the destination. The VM is not expected and doesn't have any control of setting the MAC address or bringing up/down the links. This is the model that is currently supported with netvsc driver on Azure. > > >> and have it automaticall...
2018 May 01
0
[PATCH net-next v9 3/4] virtio_net: Extend virtio to use VF datapath when available
...gt; hypervisor side would be a problem. This in not an issue for >> > > bonding/team as well. >> > Somehow the hypervisor needs to make sure that the broadcasts/multicasts from the VM >> > sent over the VF datapath don't get looped back to the VM via the virtio-net datapth. >> Why? Please see below. >> >> >> > This can happen if both datapaths are enabled at the same time. >> > >> > I would think this is an issue even with bonding/team as well when virtio-net and >> > VF are backed by the same PF. >> >...
2018 Feb 20
0
[RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device
...the same MAC address to both VF and virtio interfaces >- setting a BACKUP feature bit on virtio that enables virtio to transparently >take >? over the VFs datapath. >- only enable one datapath at anytime so that packets don't get looped back >- during live migration enable virtio datapth, unplug vf on the source and >replug >? vf on the destination. > >The VM is not expected and doesn't have any control of setting the MAC >address >or bringing up/down the links. > >This is the model that is currently supported with netvsc driver on Azure. Yeah, I can se...
2018 Feb 20
6
[RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device
On Tue, Feb 20, 2018 at 2:42 AM, Jiri Pirko <jiri at resnulli.us> wrote: > Fri, Feb 16, 2018 at 07:11:19PM CET, sridhar.samudrala at intel.com wrote: >>Patch 1 introduces a new feature bit VIRTIO_NET_F_BACKUP that can be >>used by hypervisor to indicate that virtio_net interface should act as >>a backup for another device with the same MAC address. >>
2018 Feb 20
6
[RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device
On Tue, Feb 20, 2018 at 2:42 AM, Jiri Pirko <jiri at resnulli.us> wrote: > Fri, Feb 16, 2018 at 07:11:19PM CET, sridhar.samudrala at intel.com wrote: >>Patch 1 introduces a new feature bit VIRTIO_NET_F_BACKUP that can be >>used by hypervisor to indicate that virtio_net interface should act as >>a backup for another device with the same MAC address. >>