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Subject: Re: RE: RE: RE: RE: [virtio-comment] RE: RE: RE: RE: [RFC] virtio-net: support access and control the member devices
On Tue, 8 Aug 2023 13:21:23 +0800, Jason Wang <jasowang@redhat.com> wrote: > On Tue, Aug 8, 2023 at 12:38âPM Parav Pandit <parav@nvidia.com> wrote: > > > > > > > From: Jason Wang <jasowang@redhat.com> > > > Sent: Tuesday, August 8, 2023 10:03 AM > > > > > > This option because it is in use by very big and mature eco system of multiple > > > sw stacks, kernel subsystem, drivers, and nics for several years now. > > > > > > > > > A drawback of using switch is that it introduces dependencies. > > > > > > > > > Feature is not a dependency. :) > > > > > > Well, I meant you need a switch in order to let the IP filter work then. > > > > > Ok. > > > > > > > > > > > > A virtio switch object can be part of a existing virtio device or > > > > > > a new virtio > > > > > device type in itself. > > > > > > > > > > That's fine. > > > > > > > > > > > > > > > > > Xuan, > > > > > > As we discussed, since the owner device packets also needs to be > > > > > > filtered, potentially outside of the owner device itself, > > > > > > > > > > This seems the admin request out of the scope of virtio. > > > > > > > > > Not really, it could be virto switch device that manage PF also. > > > > At that point, there may be two functions, PF and switching PF, switching PF > > > filters the traffic of the PF. > > > > > > That's fine. But such filtering needs to be done in a switch specific way not via > > > the admin command/virtqueue. > > > > A switch object needs a generic flow filter vq(s) to meet the high rate needed. > > Several of us have worked through the flow filter vq for few several weeks on bi-weekly basis and over public mailing lists. > > > > We can differ the design discussion once we have clarity on requirements. :) > > It can be done via flow filter or not for sure. We need more inputs on > the requirement. Maybe a new thread is more suitable. YES. I will post a summary to a new thread. Thanks. > > Thanks >
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