16.09.'05 - 20:07 |
I have constantly troubles to make Wake On Lan working on Linux, beause it often requires individual adapter approach. I'll
describe several things how to get WOL working - at least in some cases.
In passed time I had 4 ethernet cards I used.
-
Edimax 9130TX - realtek 8139 - module 8139too
-
Edimax 9130TXA - realtek 8139 - module 8139too, has wake on lan power supply wire
-
SafeWay SW-10/100-PCI - Myson chipset - module fealnx
-
nVidia nForce4 Marvell Yukon
88E8053
each behaves differentlly and requires different steps to have WOL working.
My
assumption: The behaviour of card depends on what the driver does with
it. It seems there is no given rule how the driver sets cards' wol at
load/unload (modprobe/rmmod). Therefore you need to do different things
with different card.
Edimax - realtek 8139
Most clear status is with
realtek 8139. First you can enable WOL
and PME events in config.exe utility (provided on attached floppy).
This works for DOS. However 8139too driver disables wol on module load
and you have to enabled it. To enable it use e.g.
ethtool -s eth0 wol g
You have to do this every boot.
SafeWay - Myson
Myson fealnx driver has WOL enabled by default. FIXME??? check ethtool!
nForce4 - Marvell
For
nForce4 Marvell with forcedeth driver I did not find any
reliable behaviour. Definitely the WOL state is pretty unpredictable. I
found advices for nForce2 that you have to enable power management for
the NIC on shutdown with pci-config -S -B 2 -#10
You have to fill in correct numbers
$ lspci
02:0a.0 Ethernet controller
So it is bus 2 and device #10.
According to my experience this does nothing. Another option is to use ethtool - same as for realtek. This leads to that card sometime wakes... but sometimes.
Update 24.09.2006: As of today it seems kernel 2.6.18 supports new drivers for Cicada alias Vitesse PHY controlers and WOL seems to work on Yukon. However it is switched of by default, you have to enable it before poweroff with
ethtool -s ethX wol g
Ref.:
http://www.scyld.com/wakeonlan.html
http://sourceforge.net/projects/gkernel/
http://wiki.debian.net/?WakeOnLan
http://ahh.sourceforge.net/wol/faq.html
