sk/msk no more

[John Baldwin]

On Monday 23 March 2009 11:58:27 am John Baldwin wrote:
> On Friday 20 March 2009 11:08:35 pm Mars G Miro wrote:
> > On Sat, Mar 21, 2009 at 12:42 AM, John Baldwin <jhb at freebsd.org> wrote:
> > > On Thursday 19 March 2009 11:24:24 pm Mars G Miro wrote:
> > >> On Thu, Mar 19, 2009 at 11:26 PM, John Baldwin <jhb at freebsd.org> wrote:
> > >> > What if you set 'hw.pci.mcfg=0' in loader?
> > >> >
> > >>
> > >> That did it! Even w/ ACPI enabled in the BIOS, the sk/msk NICs don't
> > >> get lost anymore.
> > >>
> > >> pciconf and verbose dmesg: http://pastebin.com/f31621191
> > >>
> > >> btw, what does this knob actually do ?
> > >
> > > mcfg is a mechanism for doing faster PCI config access using a memory 
> mapped
> > > window.  Can you grab the output of 'acpidump -t'?
> > >
> > 
> > /*
> >   MCFG: Length=60, Revision=1, Checksum=46,
> >         OEMID=IntelR, OEM Table ID=AWRDACPI, OEM Revision=0x42302e31,
> >         Creator ID=AWRD, Creator Revision=0x0
> > 
> >         Base Address= 0x00000000e0000000
> >         Segment Group= 0x0000
> >         Start Bus= 0
> >         End Bus= 0
> >  */
> 
> Hmm, your BIOS is rather buggy and claims to only support MCFG for bus 0.  I 
> will work on a fix.  I think I will make the code fall back to the old config 
> mechanism when an MCFG region doesn't include the requested bus.

Try the patch at http://www.FreeBSD.org/~jhb/patches/pci_mcfg.patch and let
me know how it goes.

-- 
John Baldwin