[PATCH v1 00/17] Provide a new two step DMA mapping API

Jens Axboe axboe at kernel.dk
Wed Oct 30 18:44:13 PDT 2024


On 10/30/24 9:12 AM, Leon Romanovsky wrote:
> Changelog:
> v1: 
>  * Squashed two VFIO patches into one
>  * Added Acked-by/Reviewed-by tags
>  * Fix docs spelling errors
>  * Simplified dma_iova_sync() API
>  * Added extra check in dma_iova_destroy() if mapped size to make code more clear
>  * Fixed checkpatch warnings in p2p patch
>  * Changed implementation of VFIO mlx5 mlx5vf_add_migration_pages() to
>    be more general
>  * Reduced the number of changes in VFIO patch
> v0: https://lore.kernel.org/all/cover.1730037276.git.leon@kernel.org
> 
> ----------------------------------------------------------------------------
> The code can be downloaded from:
> https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git tag:dma-split-oct-30

On Christoph's request, I tested this series last week and saw some
pretty significant performance regressions on my box. I don't know what
the status is in terms of that, just want to make sure something like
this doesn't get merged until that is both fully understood and sorted
out.

-- 
Jens Axboe



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