new DMA API conversion for nvme-pci v3

Jens Axboe axboe at kernel.dk
Wed Jun 25 09:38:46 PDT 2025


On Wed, 25 Jun 2025 13:34:57 +0200, Christoph Hellwig wrote:
> this series converts the nvme-pci driver to the new IOVA-based DMA API
> for the data path.
> 
> Chances since v2:
>  - fix handling of sgl_threshold=0
> 
> 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
> 
> [...]

Applied, thanks!

[1/8] block: don't merge different kinds of P2P transfers in a single bio
      commit: 226d6099402d8de166af60b2794fc198360d98fb
[2/8] block: add scatterlist-less DMA mapping helpers
      commit: d6c12c69ef4fa33e32ceda4a53991ace01401cd9
[3/8] nvme-pci: refactor nvme_pci_use_sgls
      commit: 07c81cbf438b769e0d673be3b5c021a424a4dc6f
[4/8] nvme-pci: merge the simple PRP and SGL setup into a common helper
      commit: 06cae0e3f61c4c1ef18726b817bbb88c29f81e57
[5/8] nvme-pci: remove superfluous arguments
      commit: 07de960ac7577662c68f1d21bd4907b8dfc790c4
[6/8] nvme-pci: convert the data mapping to blk_rq_dma_map
      commit: 235118de382d6545d3822ead0571a05e017ed8f1
[7/8] nvme-pci: replace NVME_MAX_KB_SZ with NVME_MAX_BYTE
      commit: d1df6bd4c551110e0d1b06ee85c7bca057439d28
[8/8] nvme-pci: rework the build time assert for NVME_MAX_NR_DESCRIPTORS
      commit: 0c34198a16a88878aba455bebe157037c9ab52c5

Best regards,
-- 
Jens Axboe






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