Re: [PATCH] PCI: Allow drivers to claim exclusive access to config regions

[Christoph Hellwig]

On Thu, Mar 25, 2021 at 07:54:59AM +0100, Greg Kroah-Hartman wrote:
> On Wed, Mar 24, 2021 at 06:23:54PM -0700, Dan Williams wrote:
> > The PCIE Data Object Exchange (DOE) mailbox is a protocol run over
> > configuration cycles. It assumes one initiator at a time is
> > reading/writing the data registers.
> 
> That sounds like a horrible protocol for a multi-processor system.
> Where is it described and who can we go complain to for creating such a
> mess?

Indeed.  Dan, is there a way to stilk kill this protocol off before it
leaks into the wild?