Re: [PATCH] uio/uio_pci_generic: Add SR-IOV support

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On 09/28/2017 11:52 AM, David Woodhouse wrote:
On Thu, 2017-09-28 at 11:05 -0400, Don Dutile wrote:
ah, nickel summary: no in-kernel driver w/.sriov-configure method.
if so, now I'm up to speed with you....
hmmmm....
so, that would imply we need an in-kernel, pcie-common, .sriov-
configure method
that's invoked if a driver isn't bound to a device? ... yes?

Well that was kind of the point in my question below the ---

Is that something we want to be generic? Would we want to have quirks
for the devices where we might *not* want it?

Anything that *has* a driver for the PF, should have .sriov_configure
already. Anything that doesn't have a driver can (now) use UIO to
enable SR-IOV. So we don't *have* to make it unconditionally
available...

Well, my point is more like: why put it in uio?
why not make it available via pcie, setup while/if no driver attached?
i.e., other non-uio users can use the mechanism.... like libvirt? ...
if a PF driver isn't required.





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