Re: [RFC] implicit per-namespace devlink instance to set kernel resource limitations

[David Ahern <dsahern@gmail.com>]

On 8/6/19 8:59 PM, Andrew Lunn wrote:
> However, zoom out a bit, from networking to the whole kernel. In
> general, across the kernel as a whole, resource management is done
> with cgroups. cgroups is the consistent operational model across the
> kernel as a whole.
> 
> So i think you need a second leg to your argument. You have said why
> devlink is the right way to do this. But you should also be able to
> say to Tejun Heo why cgroups is the wrong way to do this, going
> against the kernel as a whole model. Why is networking special?
> 

So you are saying mlxsw should be using a cgroups based API for its
resources? netdevsim is for testing kernel APIs sans hardware. Is that
not what the fib controller netdevsim is doing? It is from my perspective.

I am not the one arguing to change code and functionality that has
existed for 16 months. I am arguing that the existing resource
controller satisfies all existing goals (testing in kernel APIs) and
even satisfies additional ones - like a consistent user experience
managing networking resources. ie.., I see no reason to change what exists.