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From: Cornelia Huck <cohuck@redhat.com>
To: Christoph Hellwig <hch@lst.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jason Gunthorpe <jgg@nvidia.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Kirti Wankhede <kwankhede@nvidia.com>
Cc: Tony Krowiak <akrowiak@linux.ibm.com>,
	Jason Herne <jjherne@linux.ibm.com>,
	kvm@vger.kernel.org, Vasily Gorbik <gor@linux.ibm.com>,
	Jonathan Corbet <corbet@lwn.net>, David Airlie <airlied@linux.ie>,
	linux-s390@vger.kernel.org, Heiko Carstens <hca@linux.ibm.com>,
	linux-doc@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Halil Pasic <pasic@linux.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 07/10] vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind
Date: Tue, 15 Jun 2021 12:54:41 +0200	[thread overview]
Message-ID: <875yyfxury.fsf@redhat.com> (raw)
In-Reply-To: <20210614150846.4111871-8-hch@lst.de>

On Mon, Jun 14 2021, Christoph Hellwig <hch@lst.de> wrote:

> From: Jason Gunthorpe <jgg@nvidia.com>
>
> This allows a mdev driver to opt out of using vfio_mdev.c, instead the
> driver will provide a 'struct mdev_driver' and register directly with the
> driver core.
>
> Much of mdev_parent_ops becomes unused in this mode:
> - create()/remove() are done via the mdev_driver probe()/remove()
> - mdev_attr_groups becomes mdev_driver driver.dev_groups
> - Wrapper function callbacks are replaced with the same ones from
>   struct vfio_device_ops
>
> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/vfio/mdev/mdev_core.c   | 30 ++++++++++++++++++++++--------
>  drivers/vfio/mdev/mdev_driver.c | 10 ++++++++++
>  include/linux/mdev.h            |  2 ++
>  3 files changed, 34 insertions(+), 8 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>


  parent reply	other threads:[~2021-06-15 10:54 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210614150846.4111871-1-hch@lst.de>
     [not found] ` <20210614150846.4111871-5-hch@lst.de>
2021-06-14 22:43   ` [PATCH 04/10] driver core: Don't return EPROBE_DEFER to userspace during sysfs bind Jason Gunthorpe
     [not found] ` <20210614150846.4111871-2-hch@lst.de>
2021-06-15  5:16   ` [PATCH 01/10] driver core: Pull required checks into driver_probe_device() Greg Kroah-Hartman
2021-06-15 10:27   ` Cornelia Huck
     [not found] ` <20210614150846.4111871-3-hch@lst.de>
2021-06-14 18:47   ` [PATCH 02/10] driver core: Better distinguish probe errors in really_probe Kirti Wankhede
2021-06-15  5:17   ` Greg Kroah-Hartman
2021-06-15  5:21 ` Allow mdev drivers to directly create the vfio_device (v2 / alternative) Greg Kroah-Hartman
     [not found]   ` <20210615055021.GB21080@lst.de>
2021-06-15 15:27     ` Jason Gunthorpe
     [not found] ` <20210614150846.4111871-4-hch@lst.de>
2021-06-15  5:18   ` [PATCH 03/10] driver core: Flow the return code from ->probe() through to sysfs bind Greg Kroah-Hartman
2021-06-15 10:31   ` Cornelia Huck
     [not found] ` <20210614150846.4111871-6-hch@lst.de>
2021-06-15  5:20   ` [PATCH 05/10] driver core: Export device_driver_attach() Greg Kroah-Hartman
2021-06-15 10:49   ` Cornelia Huck
     [not found] ` <20210614150846.4111871-7-hch@lst.de>
2021-06-15 10:50   ` [PATCH 06/10] vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE Cornelia Huck
     [not found] ` <20210614150846.4111871-8-hch@lst.de>
2021-06-15 10:54   ` Cornelia Huck [this message]
     [not found] <20210615133519.754763-1-hch@lst.de>
     [not found] ` <20210615133519.754763-8-hch@lst.de>
2021-06-15 14:06   ` [PATCH 07/10] vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind Cornelia Huck
2021-06-15 14:11   ` Greg Kroah-Hartman
2021-06-16  0:00     ` Jason Gunthorpe
2021-06-16  6:39       ` Greg Kroah-Hartman
2021-06-16 20:20   ` Kirti Wankhede

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