On Thu, May 17, 2018 at 12:01:30PM -0500, Jonathan A. Kollasch wrote:
> On Wed, May 16, 2018 at 01:45:36PM -0700, Jason Thorpe wrote:
> > > On May 16, 2018, at 1:07 PM, Jonathan A. Kollasch <jakll...@kollasch.net>
> > > wrote:
> > >
> > > I'm a bit uneasy about it myself for that same reason. However, we
> > > do not to my knowledge have the infrastructure available to do a
> > > complete validation of the resource assignment. If we did, we'd be
> > > able to do hot attach of PCIe ExpressCard with just a little more work.
> > We used to have something like this to support CardBus way back in the day,
> > but I will admit I wasn’t entirely happy with it at the time.
> rbus? That's still around, and it's still ugly and doesn't always work.
I have some patches where I had begun to unify CardBus and PCI I/O- &
memory-space management using vmem(9). The patches have probably rotted
since I stopped working on them 5+ years ago, but it might be easier to
fix them than to start from scratch. If you want to take this on, I
will try to scare up the patches.
dyo...@pobox.com Urbana, IL (217) 721-9981