From: Alex Williamson <alex.williamson@redhat.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Kirti Wankhede <kwankhede@nvidia.com>,
Tony Krowiak <akrowiak@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Jason Herne <jjherne@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>,
Matthew Rosato <mjrosato@linux.ibm.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>,
Zhi Wang <zhi.a.wang@intel.com>, Jason Gunthorpe <jgg@nvidia.com>,
kvm@vger.kernel.org, linux-s390@vger.kernel.org,
intel-gvt-dev@lists.freedesktop.org
Subject: Re: simplify the mdev interface v6
Date: Mon, 18 Jul 2022 15:33:31 -0600 [thread overview]
Message-ID: <20220718153331.18a52e31.alex.williamson@redhat.com> (raw)
In-Reply-To: <20220718054348.GA22345@lst.de>
On Mon, 18 Jul 2022 07:43:48 +0200
Christoph Hellwig <hch@lst.de> wrote:
> Alex, does this series look good to you now?
It does. I was hoping we'd get a more complete set acks from the mdev
driver owners, but I'll grab this within the next day or two with
whatever additional reviews come in by then. Thanks,
Alex
> On Sat, Jul 09, 2022 at 06:54:36AM +0200, Christoph Hellwig wrote:
> > Hi all,
> >
> > this series signigicantly simplies the mdev driver interface by following
> > the patterns for device model interaction used elsewhere in the kernel.
> >
> > Changes since v5:
> > - rebased to the latest vfio/next branch
> > - drop the last patch again
> > - make sure show_available_instances works properly for the internallly
> > tracked case
> >
> > Changes since v4:
> > - move the kobject_put later in mdev_device_release
> > - add a Fixes tag for the first patch
> > - add another patch to remove an extra kobject_get/put
> >
> > Changes since v3:
> > - make the sysfs_name and pretty_name fields pointers instead of arrays
> > - add an i915 cleanup to prepare for the above
> >
> > Changes since v2:
> > - rebased to vfio/next
> > - fix a pre-existing memory leak in i915 instead of making it worse
> > - never manipulate if ->available_instances if drv->get_available is
> > provided
> > - keep a parent reference for the mdev_type
> > - keep a few of the sysfs.c helper function around
> > - improve the documentation for the parent device lifetime
> > - minor spellig / formatting fixes
> >
> > Changes since v1:
> > - embedd the mdev_parent into a different sub-structure in i916
> > - remove headers now inclued by mdev.h from individual source files
> > - pass an array of mdev_types to mdev_register_parent
> > - add additional patches to implement all attributes on the
> > mdev_type in the core code
> >
> > Diffstat:
> > Documentation/driver-api/vfio-mediated-device.rst | 26 +-
> > Documentation/s390/vfio-ap.rst | 2
> > Documentation/s390/vfio-ccw.rst | 2
> > drivers/gpu/drm/i915/gvt/aperture_gm.c | 20 +-
> > drivers/gpu/drm/i915/gvt/gvt.h | 42 ++--
> > drivers/gpu/drm/i915/gvt/kvmgt.c | 168 ++++-------------
> > drivers/gpu/drm/i915/gvt/vgpu.c | 210 +++++++---------------
> > drivers/s390/cio/cio.h | 4
> > drivers/s390/cio/vfio_ccw_drv.c | 12 -
> > drivers/s390/cio/vfio_ccw_ops.c | 51 -----
> > drivers/s390/cio/vfio_ccw_private.h | 2
> > drivers/s390/crypto/vfio_ap_ops.c | 68 +------
> > drivers/s390/crypto/vfio_ap_private.h | 6
> > drivers/vfio/mdev/mdev_core.c | 190 ++++---------------
> > drivers/vfio/mdev/mdev_driver.c | 7
> > drivers/vfio/mdev/mdev_private.h | 32 ---
> > drivers/vfio/mdev/mdev_sysfs.c | 189 ++++++++++---------
> > include/linux/mdev.h | 77 ++++----
> > samples/vfio-mdev/mbochs.c | 103 +++-------
> > samples/vfio-mdev/mdpy.c | 115 +++---------
> > samples/vfio-mdev/mtty.c | 94 +++------
> > 21 files changed, 463 insertions(+), 957 deletions(-)
> ---end quoted text---
>
next prev parent reply other threads:[~2022-07-18 21:33 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-09 4:54 simplify the mdev interface v6 Christoph Hellwig
2022-07-09 4:54 ` [PATCH 01/14] drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types Christoph Hellwig
2022-07-09 4:54 ` [PATCH 02/14] drm/i915/gvt: simplify vgpu configuration management Christoph Hellwig
2022-07-09 4:54 ` [PATCH 03/14] vfio/mdev: make mdev.h standalone includable Christoph Hellwig
2022-07-19 17:03 ` Jason J. Herne
2022-07-09 4:54 ` [PATCH 04/14] vfio/mdev: embedd struct mdev_parent in the parent data structure Christoph Hellwig
2022-07-09 4:54 ` [PATCH 05/14] vfio/mdev: simplify mdev_type handling Christoph Hellwig
2022-07-20 20:47 ` Eric Farman
2022-07-09 4:54 ` [PATCH 06/14] vfio/mdev: remove mdev_from_dev Christoph Hellwig
2022-07-09 4:54 ` [PATCH 07/14] vfio/mdev: unexport mdev_bus_type Christoph Hellwig
2022-07-09 4:54 ` [PATCH 08/14] vfio/mdev: remove mdev_parent_dev Christoph Hellwig
2022-07-09 4:54 ` [PATCH 09/14] vfio/mdev: remove mtype_get_parent_dev Christoph Hellwig
2022-07-09 4:54 ` [PATCH 10/14] vfio/mdev: consolidate all the device_api sysfs into the core code Christoph Hellwig
2022-07-09 4:54 ` [PATCH 11/14] vfio/mdev: consolidate all the name " Christoph Hellwig
2022-07-09 4:54 ` [PATCH 12/14] vfio/mdev: consolidate all the available_instance " Christoph Hellwig
2022-07-09 4:54 ` [PATCH 13/14] vfio/mdev: consolidate all the description " Christoph Hellwig
2022-07-09 4:54 ` [PATCH 14/14] vfio/mdev: add mdev available instance checking to the core Christoph Hellwig
2022-07-19 2:00 ` Eric Farman
2022-07-19 14:48 ` Christoph Hellwig
2022-07-18 5:43 ` simplify the mdev interface v6 Christoph Hellwig
2022-07-18 21:33 ` Alex Williamson [this message]
2022-07-19 0:22 ` Zhenyu Wang
2022-07-19 2:01 ` Eric Farman
2022-07-19 14:49 ` Christoph Hellwig
2022-07-19 15:26 ` Alex Williamson
2022-07-19 17:49 ` Eric Farman
2022-07-20 2:41 ` Eric Farman
2022-07-20 5:06 ` Christoph Hellwig
2022-07-26 15:37 ` [RFC PATCH] vfio/ccw: Move mdev stuff out of struct subchannel Eric Farman
2022-07-26 17:48 ` Christoph Hellwig
2022-07-26 18:03 ` Eric Farman
2022-08-18 6:53 ` Tian, Kevin
2022-08-18 13:24 ` Eric Farman
2022-08-27 10:08 ` Tian, Kevin
2022-07-20 12:14 ` simplify the mdev interface v6 Jason Gunthorpe
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