From: David Matlack <dmatlack@google.com>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Alex Williamson <alex@shazbot.org>,
kvm@vger.kernel.org, Leon Romanovsky <leon@kernel.org>,
linux-kselftest@vger.kernel.org, linux-rdma@vger.kernel.org,
Mark Bloch <mbloch@nvidia.com>,
netdev@vger.kernel.org, Saeed Mahameed <saeedm@nvidia.com>,
Shuah Khan <shuah@kernel.org>, Tariq Toukan <tariqt@nvidia.com>,
patches@lists.linux.dev
Subject: Re: [PATCH 07/11] vfio: selftests: Allow drivers to specify required region size
Date: Mon, 4 May 2026 20:55:58 +0000 [thread overview]
Message-ID: <afkH3pMJKkIbElhI@google.com> (raw)
In-Reply-To: <7-v1-dc5fa250ca1d+3213-mlx5st_jgg@nvidia.com>
On 2026-04-30 09:08 PM, Jason Gunthorpe wrote:
> Add a region_size field to struct vfio_pci_driver_ops so drivers can
> declare how much DMA-mapped region they need. The mlx5 driver will
> need ~18MB for firmware pages. Existing drivers leave region_size as
> 0 and get the current default of SZ_2M.
I would like to get rid of the magic SZ_2M to make it easier for other
tests to use the driver framework. Can you make this commit update all
the drivers to set region_size? They can all use the same approach:
struct vfio_pci_driver_ops foo_driver = {
...
.region_size = roundup_pow_of_two(sizeof(struct foo)),
...
};
next prev parent reply other threads:[~2026-05-04 20:56 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 0:08 [PATCH 00/11] mlx5 support for VFIO self test Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 01/11] net/mlx5: Add IFC structures for CQE and WQE Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 02/11] net/mlx5: Move HW constant groups from device.h/cq.h to mlx5_ifc.h Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 03/11] net/mlx5: Extract MLX5_SET/GET macros into mlx5_ifc_macros.h Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 04/11] net/mlx5: Add ONCE and MMIO accessor variants to mlx5_ifc_macros.h Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 05/11] selftests: Add additional kernel functions to tools/include/ Jason Gunthorpe
2026-05-04 21:48 ` David Matlack
2026-05-05 15:43 ` Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 06/11] selftests: Fix arm64 IO barriers to match kernel Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 07/11] vfio: selftests: Allow drivers to specify required region size Jason Gunthorpe
2026-05-02 8:33 ` Manuel Ebner
2026-05-04 20:55 ` David Matlack [this message]
2026-05-05 15:52 ` Jason Gunthorpe
2026-05-05 16:05 ` David Matlack
2026-05-01 0:08 ` [PATCH 08/11] vfio: selftests: Add dev_dbg Jason Gunthorpe
2026-05-04 21:15 ` David Matlack
2026-05-05 15:53 ` Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 09/11] vfio: selftests: Add mlx5 driver - HW init and command interface Jason Gunthorpe
2026-05-02 9:35 ` Manuel Ebner
2026-05-04 22:35 ` David Matlack
2026-05-05 15:45 ` Jason Gunthorpe
2026-05-05 16:03 ` David Matlack
2026-05-01 0:08 ` [PATCH 10/11] vfio: selftests: Add mlx5 driver - data path and memcpy ops Jason Gunthorpe
2026-05-04 22:41 ` David Matlack
2026-05-05 15:49 ` Jason Gunthorpe
2026-05-01 0:08 ` [PATCH 11/11] vfio: selftests: mlx5 driver - add send_msi support Jason Gunthorpe
2026-05-01 16:11 ` [PATCH 00/11] mlx5 support for VFIO self test David Matlack
2026-05-01 16:43 ` Jason Gunthorpe
2026-05-04 22:54 ` David Matlack
2026-05-05 15:50 ` Jason Gunthorpe
2026-05-05 15:57 ` David Matlack
2026-05-02 4:31 ` Alex Williamson
2026-05-02 13:40 ` Jason Gunthorpe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=afkH3pMJKkIbElhI@google.com \
--to=dmatlack@google.com \
--cc=alex@shazbot.org \
--cc=jgg@nvidia.com \
--cc=kvm@vger.kernel.org \
--cc=leon@kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=mbloch@nvidia.com \
--cc=netdev@vger.kernel.org \
--cc=patches@lists.linux.dev \
--cc=saeedm@nvidia.com \
--cc=shuah@kernel.org \
--cc=tariqt@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox