Re: [PATCH v8 00/24] Provide a new two step DMA mapping API

[Jens Axboe]

On 4/18/25 12:47 AM, Leon Romanovsky wrote:
> Following recent on site LSF/MM 2025 [1] discussion, the overall
> response was extremely positive with many people expressed their
> desire to see this series merged, so they can base their work on it.
> 
> It includes, but not limited:
>  * Luis's "nvme-pci: breaking the 512 KiB max IO boundary":
>    https://lore.kernel.org/all/20250320111328.2841690-1-mcgrof@xxxxxxxxxx/
>  * Chuck's NFS conversion to use one structure (bio_vec) for all types
>    of RPC transports:
>    https://lore.kernel.org/all/913df4b4-fc4a-409d-9007-088a3e2c8291@xxxxxxxxxx
>  * Matthew's vision for the world without struct page:
>    https://lore.kernel.org/all/20250320111328.2841690-1-mcgrof@xxxxxxxxxx/
>  * Confidential computing roadmap from Dan:
>    https://lore.kernel.org/all/6801a8e3968da_71fe29411@xxxxxxxxxxxxxxxxxxxxxxxxx.notmuch
> 
> This series is combination of effort of many people who contributed ideas,
> code and testing and I'm gratefully thankful for them.

Since I previously complained about performance regressions from this
series, I re-tested the current code. I no longer see a performance
regression on a AMD EPYC 9754 256 core box, nor on AMD EPYC 7763 128
core box.

Tested-by: Jens Axboe <axboe@xxxxxxxxx>

-- 
Jens Axboe