> From: Michael S. Tsirkin
> Sent: Wednesday, June 21, 2023 11:56 AM
> Not like v3 please. If you want to re-open this:
>
>
> First I think we need multiple offsets just like notification capaiblity,
> sorted by
> priority. Second I think we need ability to report offset within owner not
>
On Wed, Jun 21, 2023 at 03:50:00PM +, Parav Pandit wrote:
>
>
> > From: Parav Pandit
> > Sent: Tuesday, June 20, 2023 10:12 AM
> >
> > Michael,
> >
> > > From: Parav Pandit
> > > Sent: Monday, June 19, 2023 2:07 PM
> > > We don't need to do it now.
> > >
> > > > Current VF capability is ki
> From: Parav Pandit
> Sent: Tuesday, June 20, 2023 10:12 AM
>
> Michael,
>
> > From: Parav Pandit
> > Sent: Monday, June 19, 2023 2:07 PM
> > We don't need to do it now.
> >
> > > Current VF capability is kind of ok I guess ...
> > >
> > Already proposed one?
> >
> > > If you want admin comm
On Wed, Jun 21, 2023 at 01:09:40AM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Tuesday, June 20, 2023 6:22 AM
> >
> > On Tue, Jun 20, 2023 at 12:14:16AM +, Parav Pandit wrote:
> > >
> > >
> > > > From: virtio-dev@lists.oasis-open.org
> > > > On Behalf Of Michael S
> From: Michael S. Tsirkin
> Sent: Tuesday, June 20, 2023 6:22 AM
>
> On Tue, Jun 20, 2023 at 12:14:16AM +, Parav Pandit wrote:
> >
> >
> > > From: virtio-dev@lists.oasis-open.org
> > > On Behalf Of Michael S. Tsirkin
> > > Sent: Monday, June 19, 2023 1:46 PM
> >
> > > These devices have
Michael,
> From: Parav Pandit
> Sent: Monday, June 19, 2023 2:07 PM
> We don't need to do it now.
>
> > Current VF capability is kind of ok I guess ...
> >
> Already proposed one?
>
> > If you want admin command to query then it would need to map in PF
> memory.
> No need.
> It is similar to
On Tue, Jun 20, 2023 at 12:14:16AM +, Parav Pandit wrote:
>
>
> > From: virtio-dev@lists.oasis-open.org On
> > Behalf Of Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 1:46 PM
>
> > These devices have a legacy interface yes?
> Yes. partially.
>
> > So they should be transitional to avo
> From: virtio-dev@lists.oasis-open.org On
> Behalf Of Michael S. Tsirkin
> Sent: Monday, June 19, 2023 1:46 PM
> These devices have a legacy interface yes?
Yes. partially.
> So they should be transitional to avoid breaking assumption.
>
>
> But they are not *exactly*
> in that they don't h
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 12:17 PM
> I'd love to just put this stuff in a separate tex document and just link
> there from
> the generic thing.
> Or if it's too hard, please create new sections for this stuff. But in this
> case each
> of these sections has to s
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 2:01 PM
> > That flexibility is better gained via AQ instead of introducing new extended
> capability on the VF.
>
> To be frank for e.g. transport vq we'll need to do it with admin command (can
> we stop saying AQ please? it's a habit t
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 1:58 PM
> > AQ command on the PF is self-contained and extendible without baking things
> in very low level hw centric pci capabilities, which are hard to get rid of
> it.
>
> I worry about systems where there's value in having VF drive
On Mon, Jun 19, 2023 at 05:45:17PM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 1:38 PM
>
> > > > If we can't just make it come for free then maybe
> > > > VIRTIO_PCI_CAP_LEGACY_NOTIFY_CFG is better, we can just list the
> > > > number in the commo
On Mon, Jun 19, 2023 at 05:45:17PM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 1:38 PM
>
> > > > If we can't just make it come for free then maybe
> > > > VIRTIO_PCI_CAP_LEGACY_NOTIFY_CFG is better, we can just list the
> > > > number in the commo
On Mon, Jun 19, 2023 at 05:35:04PM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 1:26 PM
>
> > > > Also these devices will use non-transitional ID but they in fact do
> > > > have a legacy interface so using this definition they are
> > > > transiti
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 1:38 PM
> > > If we can't just make it come for free then maybe
> > > VIRTIO_PCI_CAP_LEGACY_NOTIFY_CFG is better, we can just list the
> > > number in the common section and then link to the description in the new
> section.
> > >
> > Ho
On Mon, Jun 19, 2023 at 05:26:22PM +, Parav Pandit wrote:
>
> > From: Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 1:20 PM
>
> > > It is reused, but it doesnt come for free.
> > > Do you want to re-consider AQ notify query command?
> > > Or continue as proposed in v6?
> >
> >
> > If
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 1:26 PM
> > > Also these devices will use non-transitional ID but they in fact do
> > > have a legacy interface so using this definition they are
> > > transitional devices. Maybe we need to add when we describe the
> > > device ID text
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 1:20 PM
> > It is reused, but it doesnt come for free.
> > Do you want to re-consider AQ notify query command?
> > Or continue as proposed in v6?
>
>
> If we can't just make it come for free then maybe
> VIRTIO_PCI_CAP_LEGACY_NOTIFY_CFG
On Mon, Jun 19, 2023 at 05:11:19PM +, Parav Pandit wrote:
>
>
> > From: virtio-dev@lists.oasis-open.org On
> > Behalf Of Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 1:04 PM
>
> > On Tue, Jun 13, 2023 at 08:30:15PM +0300, Parav Pandit wrote:
> > > +Even though virtqueue driver notific
On Mon, Jun 19, 2023 at 04:39:16PM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Monday, June 19, 2023 12:38 PM
>
> > >
> > > +\field{legacy_q_notify_supported} when set to 1, indicates that the
> > > +device supports legacy queue notifications at this notification
> > >
> From: virtio-dev@lists.oasis-open.org On
> Behalf Of Michael S. Tsirkin
> Sent: Monday, June 19, 2023 1:04 PM
> On Tue, Jun 13, 2023 at 08:30:15PM +0300, Parav Pandit wrote:
> > +Even though virtqueue driver notifications can be communicated
> > +through administration virtqueue, if the grou
On Tue, Jun 13, 2023 at 08:30:15PM +0300, Parav Pandit wrote:
> +Even though virtqueue driver notifications can be communicated through
> +administration virtqueue, if the group member device support such
> +notifications using a memory-mapped operation, such driver notifications
> +are sent using
> From: Michael S. Tsirkin
> Sent: Monday, June 19, 2023 12:38 PM
> >
> > +\field{legacy_q_notify_supported} when set to 1, indicates that the
> > +device supports legacy queue notifications at this notification
> > +location. Legacy Queue Notification address is derived within a BAR for a
> v
On Tue, Jun 13, 2023 at 08:30:15PM +0300, Parav Pandit wrote:
> --- a/transport-pci.tex
> +++ b/transport-pci.tex
> @@ -541,6 +541,8 @@ \subsubsection{Notification structure
> layout}\label{sec:Virtio Transport Options
> struct virtio_pci_notify_cap {
> struct virtio_pci_cap cap;
>
On Tue, Jun 13, 2023 at 08:30:15PM +0300, Parav Pandit wrote:
> This patch links how in a PCI transport a group owner can access group
> member (PCI VFs) legacy registers using a legacy registers access
> commands using administration virtqueue infrastructure.
>
> Additionally it extend the PCI no
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