linux-kernel - Re: [PATCH v5 0/2] block: Enable proper MMIO memory handling for P2P DMA

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Message-Id: <176312279654.329326.7978292363976805159.b4-ty@kernel.dk>
Date: Fri, 14 Nov 2025 05:19:56 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Keith Busch <kbusch@...nel.org>, Christoph Hellwig <hch@....de>, 
 Sagi Grimberg <sagi@...mberg.me>, Leon Romanovsky <leon@...nel.org>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-nvme@...ts.infradead.org, Chaitanya Kulkarni <kch@...dia.com>
Subject: Re: [PATCH v5 0/2] block: Enable proper MMIO memory handling for
 P2P DMA


On Fri, 14 Nov 2025 11:07:02 +0200, Leon Romanovsky wrote:
> Changelog:
> v5:
>  * Rebased on top of 8e1bf774ab18 ("Merge branch 'elevator-switch-6.19' into for-6.19/block")
>  * Initialized p2p map to PCI_P2PDMA_MAP_NONE.
> v4: https://patch.msgid.link/20251112-block-with-mmio-v4-0-54aeb609d28d@nvidia.com
>  * 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
      (no commit info)
[2/2] block-dma: properly take MMIO path
      (no commit info)

Best regards,
-- 
Jens Axboe