Re: [pci PATCH v5 3/4] ena: Migrate over to unmanaged SR-IOV support

[Alexander Duyck <alexander.duyck@gmail.com>]

On Tue, Mar 13, 2018 at 1:12 AM, David Woodhouse <dwmw2@infradead.org> wrote:
> On Mon, 2018-03-12 at 10:23 -0700, Alexander Duyck wrote:
>>
>> -       .sriov_configure = ena_sriov_configure,
>> +#ifdef CONFIG_PCI_IOV
>> +       .sriov_configure = pci_sriov_configure_simple,
>> +#endif
>>  };
>
> I'd like to see that ifdef go away, as discussed. I agree that just
> #define pci_sriov_configure_simple NULL
> should suffice. As Christoph points out, it's not going to compile if
> people try to just invoke it directly.
>
> I'd also *really* like to see a way to enable this for PFs which don't
> have (and don't need) a driver. We seem to have lost that along the
> way.

Actually the suggestion I had from Don Dutile was that we should be
looking at creating a pci-stub like driver specifically for those type
of devices, but without the ability to arbitrarily assign devices.
Basically we have to white-list it in one device at a time for those
kind of things.

If you have the device ID of the thing you wanted to have work with
pci-stub before I could look at putting together a quick driver and
adding it to this set.

Thanks.

- Alex