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

[David Fugate]

On Tue, 2020-08-25 at 07:56 +0100, Christoph Hellwig wrote:
> while adding absolutely no value.  Basically we have to add a large
> chunk of kernel code just to undo silicone/firmware Intel added to
> their
> platform to make things complicated.  I mean it is their platform and
> if
> they want a "make things complicated" option that is fine, but it
> should
> not be on by default.


Thanks for your feedback.

Over the years, I've been forwarded numerous emails from VMD customers 
praising it's ability to prevent Linux kernel panics upon hot-removals
and inserts of U.2 NVMe drives. Many were migrating from SATA drives,
which didn't have this issue, and considered it a showstopper to NVMe
adoption. I hope we can all agree reliable and robust hot-plug support
adds value.