From: Christoph Hellwig <hch@lst.de>
To: Vineeth Vijayan <vneethv@linux.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>,
Jason Gunthorpe <jgg@nvidia.com>,
Eric Farman <farman@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
kvm@vger.kernel.org, linux-s390@vger.kernel.org,
Peter Oberparleiter <oberpar@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
"Raj, Ashok" <ashok.raj@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Daniel Vetter <daniel@ffwll.ch>, Christoph Hellwig <hch@lst.de>,
Leon Romanovsky <leonro@nvidia.com>,
Max Gurtovoy <mgurtovoy@nvidia.com>,
Tarun Gupta <targupta@nvidia.com>
Subject: Re: s390 common I/O layer locking
Date: Sat, 24 Jul 2021 15:24:00 +0200 [thread overview]
Message-ID: <20210724132400.GA19006@lst.de> (raw)
In-Reply-To: <292442e8-3b1a-56c4-b974-05e8b358ba64@linux.ibm.com>
On Tue, May 04, 2021 at 05:10:42PM +0200, Vineeth Vijayan wrote:
>> For the css bus, we need locking for the event callbacks; for irq, this
>> may interact with the subchannel lock and likely needs some care.
>>
>> I also looked at the other busses in the common I/O layer: scm looks
>> good at a glance, ccwgroup and ccw have locking for online/offline; the
>> other callbacks for the ccw drivers probably need to take the device
>> lock as well.
>>
>> Common I/O layer maintainers, does that look right?
>>
> I just had a quick glance on the CIO layer drivers. And at first look, you
> are right.
> It looks likewe need modifications in the event callbacks (referring css
> here)
> Let me go thoughthis thoroughly and update.
Did this go anywhere?
next prev parent reply other threads:[~2021-07-24 13:24 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-26 20:00 [PATCH v2 00/13] Remove vfio_mdev.c, mdev_parent_ops and more Jason Gunthorpe
2021-04-26 20:00 ` [Intel-gfx] " Jason Gunthorpe
2021-04-26 20:00 ` Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 01/13] vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE Jason Gunthorpe
2021-04-26 20:00 ` [Intel-gfx] " Jason Gunthorpe
2021-04-26 20:00 ` Jason Gunthorpe
2021-04-27 11:05 ` Cornelia Huck
2021-04-27 11:05 ` [Intel-gfx] " Cornelia Huck
2021-04-27 11:05 ` Cornelia Huck
2021-04-26 20:00 ` [PATCH v2 02/13] vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind Jason Gunthorpe
2021-04-27 12:32 ` Cornelia Huck
2021-04-27 23:20 ` Jason Gunthorpe
2021-04-28 6:03 ` Christoph Hellwig
2021-04-28 7:56 ` Dan Williams
2021-04-28 12:41 ` Christoph Hellwig
2021-04-28 14:00 ` Jason Gunthorpe
2021-04-28 19:58 ` Dan Williams
2021-04-28 23:38 ` Jason Gunthorpe
2021-04-29 0:00 ` Dave Jiang
2021-05-26 0:42 ` Jason Gunthorpe
2021-05-26 1:42 ` Dan Williams
2021-05-27 11:44 ` Christoph Hellwig
2021-05-27 14:53 ` Jason Gunthorpe
2021-05-27 15:13 ` Christoph Hellwig
2021-04-29 6:51 ` Christoph Hellwig
2021-05-04 9:36 ` Christoph Hellwig
2021-05-04 11:30 ` Jason Gunthorpe
2021-04-28 6:44 ` Leon Romanovsky
2021-04-28 14:14 ` Jason Gunthorpe
2021-04-28 14:24 ` Leon Romanovsky
2021-04-26 20:00 ` [PATCH v2 03/13] vfio/mtty: Convert to use vfio_register_group_dev() Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 04/13] vfio/mdpy: " Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 05/13] vfio/mbochs: " Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 06/13] vfio/ap_ops: " Jason Gunthorpe
2021-05-04 14:42 ` Tony Krowiak
2021-05-04 16:55 ` Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 07/13] vfio/ccw: " Jason Gunthorpe
2021-04-27 20:06 ` Eric Farman
2021-04-27 22:10 ` Jason Gunthorpe
2021-04-28 12:55 ` Eric Farman
2021-04-28 13:21 ` Jason Gunthorpe
2021-04-28 17:09 ` Cornelia Huck
2021-04-28 17:20 ` Jason Gunthorpe
2021-04-29 11:58 ` Cornelia Huck
2021-04-29 18:13 ` Jason Gunthorpe
2021-04-30 12:31 ` Cornelia Huck
2021-04-30 17:19 ` Jason Gunthorpe
2021-05-03 10:54 ` s390 common I/O layer locking (was: [PATCH v2 07/13] vfio/ccw: Convert to use vfio_register_group_dev()) Cornelia Huck
2021-05-04 15:10 ` s390 common I/O layer locking Vineeth Vijayan
2021-07-24 13:24 ` Christoph Hellwig [this message]
2021-08-03 14:27 ` Vineeth Vijayan
2021-08-10 15:00 ` Cornelia Huck
2021-04-26 20:00 ` [PATCH v2 08/13] vfio/gvt: Convert to use vfio_register_group_dev() Jason Gunthorpe
2021-04-26 20:00 ` [Intel-gfx] " Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 09/13] vfio/mdev: Remove vfio_mdev.c Jason Gunthorpe
2021-04-28 6:07 ` Christoph Hellwig
2021-04-28 6:36 ` Greg Kroah-Hartman
2021-04-28 12:53 ` Jason Gunthorpe
2021-04-29 6:53 ` Christoph Hellwig
2021-04-29 6:56 ` Greg Kroah-Hartman
2021-05-03 17:32 ` Jason Gunthorpe
2021-05-04 9:38 ` Christoph Hellwig
2021-05-04 16:20 ` Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 10/13] vfio/mdev: Remove mdev_parent_ops dev_attr_groups Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 11/13] vfio/mdev: Remove mdev_parent_ops Jason Gunthorpe
2021-04-26 20:00 ` [Intel-gfx] " Jason Gunthorpe
2021-04-26 20:00 ` Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 12/13] vfio/mdev: Use the driver core to create the 'remove' file Jason Gunthorpe
2021-04-26 20:00 ` [PATCH v2 13/13] vfio/mdev: Remove mdev drvdata Jason Gunthorpe
2021-04-27 21:30 ` [PATCH v2 00/13] Remove vfio_mdev.c, mdev_parent_ops and more Alex Williamson
2021-04-27 21:30 ` [Intel-gfx] " Alex Williamson
2021-04-27 21:30 ` Alex Williamson
2021-04-27 22:20 ` Jason Gunthorpe
2021-04-27 22:20 ` [Intel-gfx] " Jason Gunthorpe
2021-04-27 22:20 ` Jason Gunthorpe
2021-04-27 22:49 ` Alex Williamson
2021-04-27 22:49 ` [Intel-gfx] " Alex Williamson
2021-04-27 22:49 ` Alex Williamson
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