* NVIDIA mlx5 PMD roadmap question
@ 2022-12-07 8:47 Morten Brørup
2023-04-12 12:57 ` Slava Ovsiienko
0 siblings, 1 reply; 2+ messages in thread
From: Morten Brørup @ 2022-12-07 8:47 UTC (permalink / raw)
To: Matan Azrad, Viacheslav Ovsiienko; +Cc: dev
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* RE: NVIDIA mlx5 PMD roadmap question
2022-12-07 8:47 NVIDIA mlx5 PMD roadmap question Morten Brørup
@ 2023-04-12 12:57 ` Slava Ovsiienko
0 siblings, 0 replies; 2+ messages in thread
From: Slava Ovsiienko @ 2023-04-12 12:57 UTC (permalink / raw)
To: Morten Brørup, Matan Azrad; +Cc: dev
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@smartsharesystems.com>
> Sent: среда, 7 декабря 2022 г. 10:48
> To: Matan Azrad <matan@nvidia.com>; Slava Ovsiienko
> <viacheslavo@nvidia.com>
> Cc: dev@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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-12-07 8:47 NVIDIA mlx5 PMD roadmap question Morten Brørup
2023-04-12 12:57 ` Slava Ovsiienko
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