New ACPI PCI Link Routing code

[John Baldwin]

On Tuesday 16 November 2004 06:27 pm, Nate Lawson wrote:
> John Baldwin wrote:
> > On Thursday 11 November 2004 05:37 pm, John Baldwin wrote:
> >>I've done some work on the ACPI PCI link code to make it a bit more like
> >>$PIR in that it is link centric and uses actual new-bus devices for each
> >>device link.  One benefit of this is that unused links will be disabled
> >> now which might help with interrupt aliasing problems on machines using
> >> APICs. Also, instead of routing IRQs for links via PCI device numbers
> >> using tunables, they are now routed via the link name ala $PIR.  Thus,
> >> one uses 'hw.pci.link.LNKA.irq=X' to route LNKA to IRQ X.  Also, when
> >> choosing a virgin interrupt, we no longer try to guess at which IRQs
> >> might be used by ISA devices.  Instead, we only use known-good IRQs
> >> including IRQs that the BIOS has already used and the SCI if the link is
> >> being routed via ISA IRQs. The patch is at
> >> http://www.FreeBSD.org/~jhb/patches/acpi_pci_link.patch Please test and
> >> let me know if there are any problems, thanks.
> >
> > I've updated this to the latest current and verified that it compiles ok
> > (since I had at least one report that it didn't patch cleanly and/or
> > compile).  I plan to commit this in a couple of days unless I hear some
> > sort of negative feedback.
>
> Oh, please s/style(msmith)/style(9) in some parts you added.

Heh, I can do that in the new code, sure.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org