[PATCH v4 0/2] block: Enable proper MMIO memory handling for P2P DMA
Jens Axboe
axboe at kernel.dk
Thu Nov 13 08:39:39 PST 2025
On Wed, 12 Nov 2025 21:48:03 +0200, Leon Romanovsky wrote:
> Changelog:
> v4:
> * Changed double "if" to be "else if".
> * Added missed PCI_P2PDMA_MAP_NONE case.
> v3: https://patch.msgid.link/20251027-block-with-mmio-v3-0-ac3370e1f7b7@nvidia.com
> * Encoded p2p map type in IOD flags instead of DMA attributes.
> * Removed REQ_P2PDMA flag from block layer.
> * Simplified map_phys conversion patch.
> v2: https://lore.kernel.org/all/20251020-block-with-mmio-v2-0-147e9f93d8d4@nvidia.com/
> * Added Chirstoph's Reviewed-by tag for first patch.
> * Squashed patches
> * Stored DMA MMIO attribute in NVMe IOD flags variable instead of block layer.
> v1: https://patch.msgid.link/20251017-block-with-mmio-v1-0-3f486904db5e@nvidia.com
> * Reordered patches.
> * Dropped patch which tried to unify unmap flow.
> * Set MMIO flag separately for data and integrity payloads.
> v0: https://lore.kernel.org/all/cover.1760369219.git.leon@kernel.org/
>
> [...]
Applied, thanks!
[1/2] nvme-pci: migrate to dma_map_phys instead of map_page
commit: f10000db2f7cf29d8c2ade69266bed7b51c772cb
[2/2] block-dma: properly take MMIO path
commit: 8df2745e8b23fdbe34c5b0a24607f5aaf10ed7eb
Best regards,
--
Jens Axboe
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