On Mon, Mar 12, 2018 at 10:20 AM, Alexander Duyck <alexander.duyck@xxxxxxxxx> wrote: > This series is meant to add support for SR-IOV on devices when the VFs are > not managed by the kernel. Examples of recent patches attempting to do this > include: > virto - https://patchwork.kernel.org/patch/10241225/ > pci-stub - https://patchwork.kernel.org/patch/10109935/ > vfio - https://patchwork.kernel.org/patch/10103353/ > uio - https://patchwork.kernel.org/patch/9974031/ > > Since this is quickly blowing up into a multi-driver problem it is probably > best to implement this solution as generically as possible. > > This series is an attempt to do that. What we do with this patch set is > provide a generic framework to enable SR-IOV in the case that the PF driver > doesn't support managing the VFs itself. > > I based my patch set originally on the patch by Mark Rustad but there isn't > much left after going through and cleaning out the bits that were no longer > needed, and after incorporating the feedback from David Miller. At this point > the only items to be fully reused was his patch description which is now > present in patch 3 of the set. > > This solution is limited in scope to just adding support for devices that > provide no functionality for SR-IOV other than allocating the VFs by > calling pci_enable_sriov. Previous sets had included patches for VFIO, but > for now I am dropping that as the scope of that work is larger then I > think I can take on at this time. > > v2: Reduced scope back to just virtio_pci and vfio-pci > Broke into 3 patch set from single patch > Changed autoprobe behavior to always set when num_vfs is set non-zero > v3: Updated Documentation to clarify when sriov_unmanaged_autoprobe is used > Wrapped vfio_pci_sriov_configure to fix build errors w/o SR-IOV in kernel > v4: Dropped vfio-pci patch > Added ena and nvme to drivers now using pci_sriov_configure_unmanaged > Dropped pci_disable_sriov call in virtio_pci to be consistent with ena > v5: Dropped sriov_unmanaged_autoprobe and pci_sriov_conifgure_unmanaged > Added new patch that enables pci_sriov_configure_simple > Updated drivers to use pci_sriov_configure_simple > > Cc: Mark Rustad <mark.d.rustad@xxxxxxxxx> > Cc: Maximilian Heyne <mheyne@xxxxxxxxx> > Cc: Liang-Min Wang <liang-min.wang@xxxxxxxxx> > Cc: David Woodhouse <dwmw@xxxxxxxxxxxx> Ugh. Just realized I forgot to post the correct subject line in the cover page. I needed I can resubmit the series, will just leave it for now in case there are any other review comments. Thanks. - Alex
