kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-24 19:10:26 +00:00
Code Issues Releases Packages Activity
linux/drivers/vfio
History
Yishai Hadas 97c22fd510 vfio/mlx5: Align the page tracking max message size with the device capability 
[ Upstream commit 9c7c5430bc ]

Align the page tracking maximum message size with the device's
capability instead of relying on PAGE_SIZE.

This adjustment resolves a mismatch on systems where PAGE_SIZE is 64K,
but the firmware only supports a maximum message size of 4K.

Now that we rely on the device's capability for max_message_size, we
must account for potential future increases in its value.

Key considerations include:
- Supporting message sizes that exceed a single system page (e.g., an 8K
  message on a 4K system).
- Ensuring the RQ size is adjusted to accommodate at least 4
  WQEs/messages, in line with the device specification.

The above has been addressed as part of the patch.

Fixes: 79c3cf2799 ("vfio/mlx5: Init QP based resources for dirty tracking")
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Yingshun Cui <yicui@redhat.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20241205122654.235619-1-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-14 19:54:51 +01:00
..
fsl-mc vfio/fsl-mc: Block calling interrupt handler without trigger 2024-04-03 15:19:47 +02:00
mdev vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent() 2023-10-06 14:56:45 +02:00
pci vfio/mlx5: Align the page tracking max message size with the device capability 2024-12-14 19:54:51 +01:00
platform vfio/platform: Create persistent IRQ handlers 2024-04-03 15:19:46 +02:00
container.c vfio: Use GFP_KERNEL_ACCOUNT for userspace persistent allocations 2024-04-03 15:19:34 +02:00
iova_bitmap.c iommufd/iova_bitmap: Consider page offset for the pages to be pinned 2024-03-01 13:26:35 +01:00
Kconfig vfio: Introduce the DMA logging feature support 2022-09-08 12:59:00 -06:00
Makefile vfio: Move container code into drivers/vfio/container.c 2022-09-22 15:46:06 -06:00
vfio.h vfio: Make the group FD disassociate from the iommu_group 2022-10-07 08:10:52 -06:00
vfio_iommu_spapr_tce.c vfio/spapr_tce: Fix the comment 2022-07-22 16:24:47 -06:00
vfio_iommu_type1.c vfio/type1: fix cap_migration information leak 2023-09-13 09:42:47 +02:00
vfio_main.c vfio: Export the device set open count 2022-11-10 12:03:36 -07:00
vfio_spapr_eeh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
virqfd.c vfio: Introduce interface to flush virqfd inject workqueue 2024-04-03 15:19:46 +02:00