Svensson Patrik L wrote:
> Emil,
> For the moment I can not prove that's the e1000 initialization is
> wrong, in fact it reports everything is OK.
> Maybe the error is after the probe function, I have noticed that the
> device name had an temporary name in the /sys/class/net directory
> (/sys/class/net/__tmp1234 instead of eth0) when the error occurs. Do
> you know where the creation of the /sys/class/net/<device> tree is
> done?
If you load the driver and you have interface (even if it's called __tmp1234)
then the driver did it's job. Interfaces are not guaranteed to be called ethX
and can be renamed which is what seems to be happening in your case. There is
nothing the driver can do about that.
To get a better idea what happens when the network is brought up - take a look
at the initialization scritps:
/etc/sysconfig/network-scripts/ifup-eth (excerpt):
# remap, if the device is bound with a MAC address and not the right device num
# bail out, if the MAC does not fit
if [ -n "${HWADDR}" ]; then
FOUNDMACADDR=`get_hwaddr ${REALDEVICE}`
if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then
curdev=`get_device_by_hwaddr ${HWADDR}`
if [ -n "$curdev" ]; then
rename_device "${REALDEVICE}" "${HWADDR}" "${curdev}" || {
echo $"Device ${DEVICE} has different MAC address than expected, ign
oring."
exit 1
}
fi
fi
fi
Note the rename_device function. You can see what the function is doing in
/etc/sysconfig/network-scripts/network-functions:
# rename_device() - Rename a network device to something else
# $1 - desired name
# $2 - hardware address to name (no longer used)
# $3 - '/' separated list of devices that are already in use
# (for general calls, use the current device you're trying to
# change to $1)
rename_device()
{
local target=${3##*/}
/sbin/ip link set "$target" name "$1" 2>/dev/null || {
local hw2=`get_hwaddr ${1}`
local nconfig=`get_config_by_hwaddr ${hw2}`
local curdev=`get_device_by_hwaddr ${hw2}`
local dev=
[ -z "${hw2}" ] && return
if [ -n "$nconfig" ]; then
dev=$(. $nconfig ; echo $DEVICE)
oldifs=$IFS
IFS=/
for device in $3 ; do
[ "$dev" = "$device" ] && unset dev
done
IFS=$oldifs
fi
[ -z "$dev" ] && dev=dev$RANDOM
rename_device $dev $hw2 "$3/$curdev"
/sbin/ip link set "$target" name $1 2>/dev/null
}
}
So maybe you can edit those scripts to fit your needs? Or simply comment out
the renaming function and see what you get.
Thanks,
Emil
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