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Re: [PATCH v14 00/22] Add Mediated device support

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On Fri, 18 Nov 2016 17:09:59 +0100
Daniel Vetter <daniel@ffwll.ch> wrote:

> On Fri, Nov 18, 2016 at 4:40 PM, Alex Williamson
> <alex.williamson@redhat.com> wrote:
> >> Alex, could you do a pull request of mdev for Daniel's drm-intel tree?
> >> We need to send KVMGT mdev support pull base on that.  
> >
> > No, this is not how I intend or prefer to merge this.  This is a large
> > change for vfio and it is not exclusive to KVMGT.  We have linux-next
> > to facilitate handling dependencies between subsystems during
> > development and a two week merge window to allow managing how these
> > changes enter the mainline tree.  If I were to have this pulled into
> > drm-intel it ties my hands as to how I can manage changes within my
> > functional area.  I want these two weeks of linux-next exposure for
> > vetting the changes and resolving any remaining issues.  I'm not going
> > to compromise my ability to react to such issues.  linux-next inclusion
> > should be sufficient for you to coordinate through the drm tree, though
> > Daniel will need to be made aware of the dependency.  I will however
> > plan to send my pull request to Linus early in the merge window to
> > accommodate dependent changes also being included for v4.10. Hope
> > you understand, thanks,  
> 
> My understanding was that the mdev changes are needed to be able to
> apply the kvmgt stuff, and otherwise it won't build. For that I need a
> stable git tag&pull request (can be specific topic branch, which means
> subsystems can land in any order, or the full subsystem tree, which
> means depencies need to be tracked correctly). I am not going to
> resolve that in the merge window, since in drm we want everything
> lined up _before_ that opens (the feature cutoff is this w/e, but
> there's some wiggle room ofc).
> 
> Sounds like there's just not enough time to line all the things up in
> time for 4.10, and the i915/kmvgt stuff needs to be postponed to 4.11.

My only alternate suggestion is that perhaps the KVMGT code can be
sufficiently partitioned off with #ifdefs that could be removed later,
allowing mdev and KVMGT to be merged independently.  We have only just
added mdev to linux-next, my intention is that the next two weeks are
for finding and correcting issues.  There are still outstanding API
changes, specifically for KVMGT being proposed by Intel included with
that. Thanks,

Alex

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[PATCH v14 00/22] Add Mediated device support Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
  [PATCH v14 11/22] vfio iommu: Add blocking notifier to notify DMA_UNMAP Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
    Re: [PATCH v14 11/22] vfio iommu: Add blocking notifier to notify  DMA_UNMAP Alex Williamson <alex.williamson@redhat.com> - 2016-11-17 01:10 +0100
    Re: [PATCH v14 11/22] vfio iommu: Add blocking notifier to notify  DMA_UNMAP Jike Song <jike.song@intel.com> - 2016-11-17 04:00 +0100
    Re: [PATCH v14 11/22] vfio iommu: Add blocking notifier to notify DMA_UNMAP Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-17 06:00 +0100
  [PATCH v14 18/22] vfio: Define device_api strings Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
  [PATCH v14 09/22] vfio iommu type1: Add task structure to vfio_dma Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
    Re: [PATCH v14 09/22] vfio iommu type1: Add task structure to  vfio_dma Alexey Kardashevskiy <aik@ozlabs.ru> - 2016-11-17 06:50 +0100
      Re: [PATCH v14 09/22] vfio iommu type1: Add task structure to  vfio_dma Alex Williamson <alex.williamson@redhat.com> - 2016-11-17 07:20 +0100
        Re: [PATCH v14 09/22] vfio iommu type1: Add task structure to  vfio_dma Alexey Kardashevskiy <aik@ozlabs.ru> - 2016-11-17 07:50 +0100
      Re: [PATCH v14 09/22] vfio iommu type1: Add task structure to  vfio_dma Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-17 07:30 +0100
  [PATCH v14 07/22] vfio iommu type1: Update argument of vaddr_get_pfn() Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
  [PATCH v14 20/22] docs: Sysfs ABI for mediated device framework Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
  [PATCH v14 13/22] vfio: Introduce common function to add capabilities Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
    Re: [Qemu-devel] [PATCH v14 13/22] vfio: Introduce common function to  add capabilities Auger Eric <eric.auger@redhat.com> - 2016-11-21 12:10 +0100
  [PATCH v14 01/22] vfio: Mediated device Core driver Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
  [PATCH v14 03/22] vfio: Rearrange functions to get vfio_group from dev Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 22:00 +0100
  [PATCH v14 08/22] vfio iommu type1: Add find_iommu_group() function Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 22:00 +0100
    Re: [PATCH v14 08/22] vfio iommu type1: Add find_iommu_group()  function Auger Eric <eric.auger@redhat.com> - 2016-11-21 12:30 +0100
      Re: [PATCH v14 08/22] vfio iommu type1: Add find_iommu_group()  function Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-21 13:00 +0100
        Re: [PATCH v14 08/22] vfio iommu type1: Add find_iommu_group()  function Auger Eric <eric.auger@redhat.com> - 2016-11-21 13:50 +0100
  [PATCH v14 02/22] vfio: VFIO based driver for Mediated devices Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 22:00 +0100
  [PATCH v14 12/22] vfio: Add notifier callback to parent's ops structure of mdev Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 22:00 +0100
    Re: [PATCH v14 12/22] vfio: Add notifier callback to parent's ops  structure of mdev Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-17 06:10 +0100
    Re: [PATCH v14 12/22] vfio: Add notifier callback to parent's ops structure of mdev Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-17 06:10 +0100
    Re: [PATCH v14 12/22] vfio: Add notifier callback to parent's ops  structure of mdev Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-17 18:30 +0100
      Re: [PATCH v14 12/22] vfio: Add notifier callback to parent's ops  structure of mdev Alex Williamson <alex.williamson@redhat.com> - 2016-11-17 18:40 +0100
    Re: [PATCH v14 12/22] vfio: Add notifier callback to parent's ops  structure of mdev Jike Song <jike.song@intel.com> - 2016-11-17 18:40 +0100
      Re: [PATCH v14 12/22] vfio: Add notifier callback to parent's ops  structure of mdev Alex Williamson <alex.williamson@redhat.com> - 2016-11-17 19:00 +0100
  [PATCH v14 04/22] vfio: Common function to increment container_users Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 22:00 +0100
  Re: [PATCH v14 00/22] Add Mediated device support Alex Williamson <alex.williamson@redhat.com> - 2016-11-17 22:30 +0100
    Re: [PATCH v14 00/22] Add Mediated device support Neo Jia <cjia@nvidia.com> - 2016-11-17 23:20 +0100
      Re: [PATCH v14 00/22] Add Mediated device support Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-18 03:10 +0100
        Re: [Qemu-devel] [PATCH v14 00/22] Add Mediated device support Jike Song <jike.song@intel.com> - 2016-11-18 03:30 +0100
    RE: [PATCH v14 00/22] Add Mediated device support "Tian, Kevin" <kevin.tian@intel.com> - 2016-11-18 00:30 +0100
      Re: [PATCH v14 00/22] Add Mediated device support Alex Williamson <alex.williamson@redhat.com> - 2016-11-18 01:00 +0100
        Re: [PATCH v14 00/22] Add Mediated device support Zhenyu Wang <zhenyuw@linux.intel.com> - 2016-11-18 10:30 +0100
          Re: [PATCH v14 00/22] Add Mediated device support Alex Williamson <alex.williamson@redhat.com> - 2016-11-18 16:50 +0100
            Re: [PATCH v14 00/22] Add Mediated device support Daniel Vetter <daniel@ffwll.ch> - 2016-11-18 17:20 +0100
              Re: [PATCH v14 00/22] Add Mediated device support Alex Williamson <alex.williamson@redhat.com> - 2016-11-18 18:00 +0100

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