new DMA API conversion for nvme-pci v2

Chaitanya Kulkarni chaitanyak at nvidia.com
Mon Jun 23 14:45:24 PDT 2025


On 6/23/25 07:12, Christoph Hellwig wrote:
> Hi all,
>
> this series converts the nvme-pci driver to the new IOVA-based DMA API
> for the data path.
>
> Chances since v1:
>   - minor cleanups to the block dma mapping helpers
>   - fix the metadata SGL supported check for bisectability
>   - fix SGL threshold check
>   - fix/simplify metadata SGL force checks
>
> Diffstat:
>   block/bio-integrity.c      |    3
>   block/bio.c                |   20 -
>   block/blk-mq-dma.c         |  161 +++++++++++
>   drivers/nvme/host/pci.c    |  615 +++++++++++++++++++++++++--------------------
>   include/linux/blk-mq-dma.h |   63 ++++
>   include/linux/blk_types.h  |    2
>   6 files changed, 597 insertions(+), 267 deletions(-)

I'll have this tested and reviewed by tomorrow end of my day on my H/W 
setup.
Gentle request, please wait till tomorrow end of the day before applying.

-ck




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