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Date:   Tue, 13 Mar 2018 09:16:28 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     David Woodhouse <dwmw2@infradead.org>
Cc:     Alexander Duyck <alexander.duyck@gmail.com>, bhelgaas@google.com,
        alexander.h.duyck@intel.com, linux-pci@vger.kernel.org,
        virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org,
        netdev@vger.kernel.org, dan.daly@intel.com,
        linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
        keith.busch@intel.com, netanel@amazon.com, mheyne@amazon.de,
        liang-min.wang@intel.com, mark.d.rustad@intel.com, hch@lst.de
Subject: Re: [pci PATCH v5 3/4] ena: Migrate over to unmanaged SR-IOV
        support
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On Tue, Mar 13, 2018 at 08:12:52AM +0000, David Woodhouse wrote:
> 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.

We've been forth and back on that.  I agree that not having any driver
just seems dangerous.  If your PF really does nothing we should just
have a trivial pf_stub driver that does nothing but wiring up
pci_sriov_configure_simple.  We can then add PCI IDs to it either
statically, or using the dynamic ids mechanism.