NVIDIA mlx5 PMD roadmap question

[Slava Ovsiienko]

Hi, Morten

Thank you for pointing out this opportunity - to enable IOVA VA mode support in mlx5 drivers.
Now we propose this patch:
http://patches.dpdk.org/project/dpdk/patch/20230412125320.8585-1-viacheslavo@nvidia.com/

The mlx5 hardware has its own MMU facility, no extra efforts are needed to support VA from PMD side.

With best regards,
Slava

> -----Original Message-----
> From: Morten Brørup <mb at smartsharesystems.com>
> Sent: среда, 7 декабря 2022 г. 10:48
> To: Matan Azrad <matan at nvidia.com>; Slava Ovsiienko
> <viacheslavo at nvidia.com>
> Cc: dev at dpdk.org
> Subject: NVIDIA mlx5 PMD roadmap question
> 
> NVIDIA mlx5 PMD maintainers,
> 
> Are there any plans for NVIDIA to support build time IOVA_AS_VA mode (i.e.
> building with -Denable_iova_as_pa=false) in the mlx5 PMD?
> 
> I expect it to provide higher performance under certain conditions.
> 
> 
> Med venlig hilsen / Kind regards,
> -Morten Brørup