linux-kernel - Re: [PATCH v4 0/2] block: Enable proper MMIO memory handling for P2P DMA

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Message-Id: <176305197986.133468.1935881415989157155.b4-ty@kernel.dk>
Date: Thu, 13 Nov 2025 09:39:39 -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
Subject: Re: [PATCH v4 0/2] block: Enable proper MMIO memory handling for
 P2P DMA


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