Re: Re: remote shutdown

On Fri, 15 Aug 2003, Erik Thiele wrote:

> Date: Fri, 15 Aug 2003 16:57:19 +0200
> From: Erik Thiele <[email protected]>
> To: Donald Becker <[email protected]>
> Subject: Re: [vortex] Re: remote shutdown
> 
> On Fri, 15 Aug 2003 10:31:32 -0400 (EDT)
> Donald Becker <[email protected]> wrote:
> 
> > On Fri, 15 Aug 2003, Erik Thiele wrote:
> > 
> > > On Thu, 14 Aug 2003 16:17:42 -0400 (EDT)
> > > Donald Becker <[email protected]> wrote:
> > > > On Thu, 14 Aug 2003, Erik Thiele wrote:
> > > >    ftp://ftp.scyld.com/pub/diag/pci-config.c
> > ...
> > > > This code allows reading the PCI configuration space registers.
> > > > I use it to monitoring if the card is trying to raise a wake-up sign.
> > > > It has an extra piece of code expecially for the 3Com chips enabled by
> > > >     --set-WOL 
> > ..
> > > attached is the output of pci-config
> > > then pci-config -a -#1
> > 
> > I now see that your NIC is on PCI bus 2.
> > 
> > The 'pci-config' program does not automatically look past bus bridges,
> > it only scans bus 0 by default.
> > You'll need to specify PCI bus 2 with
> >    pci-config --bus 2 -# 1 -set-WOL
> > or
> >    pci-config -B 2 -# 1 -M
> 
> Oops, i didn't know this option.
> ok now some more stuff works:
> 
> in the bios i have wake on pci off.
> after doing poweroff -f
> the network is powered off, i see no light.
> 
> but if i now do pci-config -B 2 -#2 --set-WOL
> and poweroff -f
> then the light is on!

OK, the 3c59x driver from scyld.com should leave the chip in the same
state.  Specifically, the 3c59x.c:acpi_set_WOL() function is called when
   the cleanup_module() function is called or
   when the driver gets a DRV_SUSPEND message
The latter requires CONFIG_APM or CONFIG_PM, and likely only works with
properly configured 2.2 kernels on motherboards with APM.  (2.4 and ACPI
were not a step forward.)  So you must be using the 3c59x driver as a
module, and have the module unloaded at shutdown.

> but still etherwake does not wake the machine.

Does it change the state bits in the configuration space?  Specifically
  Power management entry ver. %d: Capabilities ....
should change when you run ether-wake from another machine.

-- 
Donald Becker				[email protected]
Scyld Computing Corporation		http://www.scyld.com
914 Bay Ridge Road, Suite 220		Scyld Beowulf cluster system
Annapolis MD 21403			410-990-9993

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