openrc/net/ccwgroup.sh

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# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# All rights reserved. Released under the 2-clause BSD license.
_config_vars="$_config_vars ccwgroup"
ccwgroup_depend()
{
before interface
}
ccwgroup_pre_start()
{
local ccwgroup="$(_get_array "ccwgroup_${IFVAR}")"
[ -z "${ccwgroup}" ] && return 0
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if [ ! -d /sys/bus/ccwgroup ]; then
modprobe qeth
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if [ ! -d /sys/bus/ccwgroup ]; then
eerror "ccwgroup support missing in kernel"
return 1
fi
fi
einfo "Enabling ccwgroup on ${IFACE}"
local x= ccw= first= layer2=
for x in ${ccwgroup}; do
[ -z "${first}" ] && first=${x}
ccw="${ccw}${ccw:+,}${x}"
done
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if [ -e /sys/devices/qeth/"${first}" ]; then
echo "0" >/sys/devices/qeth/"${first}"/online
else
echo "${ccw}" >/sys/bus/ccwgroup/drivers/qeth/group
fi
eval layer2=\$qeth_layer2_${IFVAR}
echo "${layer2:-0}" > /sys/devices/qeth/"${first}"/layer2
echo "1" >/sys/devices/qeth/"${first}"/online
eend $?
}
ccwgroup_pre_stop()
{
# Erase any existing ccwgroup to be safe
service_set_value ccwgroup_device ""
[ ! -L /sys/class/net/"${FACE}"/driver ] && return 0
local driver="$(readlink /sys/class/net/"${IFACE}"/driver)"
case "${diver}" in
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*/bus/ccwgroup/*);;
*) return 0;;
esac
local device="$(readlink /sys/class/net/"${IFACE}"/device)"
device=${device##*/}
service_set_value ccwgroup_device "${device}"
}
ccwgroup_post_stop()
{
local device="$(service_get_value ccwgroup_device)"
[ -z "${device}" ] && return 0
einfo "Disabling ccwgroup on ${iface}"
echo "0" >/sys/devices/qeth/"${device}"/online
echo "1" >/sys/devices/qeth/"${device}"/ungroup
eend $?
}