virtio — archive

proposal: use admin command (and aq) of the device to query config space

From: Parav Pandit <[email protected]>
To: [email protected]
Date: Wed, 02 Aug 2023 11:59:00 -0000

> From: Michael S. Tsirkin <[email protected]> > Sent: Wednesday, August 2, 2023 5:24 PM > > 2. Build SIOV device ground up that does not need to have existing limitations > of 1.x. > > > > The transport VQ proposal 4 patches had heavy inclination for #1 without > mentioning the real objective in the cover letter. > > I was proposing that when virtio builds SIOV device it should start with #2. > > Because #1 is sort of handled with sr-iov or vdpa already. > > > > #2 is more critical to get it right, after SIOV R2 spec is defined. > > > Can't we address both? E.g. use a different group type. SIOV device is just one type, serving two kinds of commands one for supporting backward compat, second for newer interface.