Re: [PATCH] PCI/ASPM: Enable ASPM for links under VMD domain

[Derrick, Jonathan]

On Thu, 2020-08-27 at 06:34 +0000, hch@xxxxxxxxxxxxx wrote:
> On Wed, Aug 26, 2020 at 09:43:27PM +0000, Derrick, Jonathan wrote:
> > Feel free to review my set to disable the MSI remapping which will
> > make
> > it perform as well as direct-attached:
> > 
> > https://patchwork.kernel.org/project/linux-pci/list/?series=325681
> 
> So that then we have to deal with your schemes to make individual
> device direct assignment work in a convoluted way?

That's not the intent of that patchset -at all-. It was to address the
performance bottlenecks with VMD that you constantly complain about. 


> Please just give us
> a disable nob for VMD, which solves _all_ these problems without
> adding
> any.

I don't see the purpose of this line of discussion. VMD has been in the
kernel for 5 years. We are constantly working on better support.