Re: [RFC net-next 0/8] Introducing subdev bus and devlink extension

[Jakub Kicinski]

On Mon, 31 May 2021 18:36:12 +0800 moyufeng wrote:
> Hi, Jiri & Jakub
> 
>     Generally, a devlink instance is created for each PF/VF. This
> facilitates the query and configuration of the settings of each
> function. But if some common objects, like the health status of
> the entire ASIC, the data read by those instances will be duplicate.
> 
>     So I wonder do I just need to apply a public devlink instance for the
> entire ASIC to avoid reading the same data? If so, then I can't set
> parameters for each function individually. Or is there a better suggestion
> to implement it?

I don't think there is a great way to solve this today. In my mind
devlink instances should be per ASIC, but I never had to solve this
problem for a multi-function ASIC. 

Can you assume all functions are in the same control domain? Can they
trust each other?