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# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# Released under the 2-clause BSD license.
_config_vars="$_config_vars ccwgroup"
ccwgroup_depend()
{
before interface
}
ccwgroup_load_modules()
{
# make sure we have ccwgroup support or this is a crap shoot
if [ ! -d /sys/bus/ccwgroup ] ; then
modprobe -q ccwgroup
if [ ! -d /sys/bus/ccwgroup ] ; then
eerror "ccwgroup support missing in kernel"
return 1
fi
fi
# verify the specific interface is supported
if [ ! -d /sys/bus/ccwgroup/drivers/$1 ] ; then
modprobe $1 >& /dev/null
if [ ! -d /sys/bus/ccwgroup/drivers/$1 ] ; then
eerror "$1 support missing in kernel"
return 1
fi
fi
return 0
}
ccwgroup_pre_start()
{
local ccwgroup="$(_get_array "ccwgroup_${IFVAR}")"
[ -z "${ccwgroup}" ] && return 0
local ccw_type
eval ccw_type=\${ccwgroup_type_${IFVAR}:-qeth}
ccwgroup_load_modules ${ccw_type} || return 1
einfo "Enabling ccwgroup/${ccw_type} on ${IFACE}"
set -- ${ccwgroup}
local first=$1; shift
if [ -e /sys/devices/${ccw_type}/${first}/online ]; then
echo "0" >/sys/devices/${ccw_type}/${first}/online
else
echo "${first}$(printf ',%s' "$@")" >/sys/bus/ccwgroup/drivers/${ccw_type}/group
fi
local var val
for var in $(_get_array "ccwgroup_opts_${IFVAR}") online=1 ; do
val=${var#*=}
var=${var%%=*}
echo "${val}" > /sys/devices/${ccw_type}/${first}/${var}
done
eend $?
# Now that we've properly configured the device, we can run
# bring the interface up. Common code tried to do this already,
# but it failed because we didn't setup sysfs yet.
_up
}
ccwgroup_pre_stop()
{
local path="/sys/class/net/${IFACE}"
# Erase any existing ccwgroup to be safe
service_set_value ccwgroup_device ""
service_set_value ccwgroup_type ""
[ ! -L "${path}"/device/driver ] && return 0
case "$(readlink "${path}"/device/driver)" in
*/bus/ccwgroup/*) ;;
*) return 0;;
esac
local device
device="$(readlink "${path}"/device)"
device=${device##*/}
service_set_value ccwgroup_device "${device}"
device="$(readlink "${path}"/device/driver)"
device=${device##*/}
service_set_value ccwgroup_type "${device}"
}
ccwgroup_post_stop()
{
local device="$(service_get_value ccwgroup_device)"
[ -z "${device}" ] && return 0
local ccw_type="$(service_get_value ccwgroup_type)"
local path="/sys/devices/${ccw_type}/${device}"
einfo "Disabling ccwgroup/${ccw_type} on ${IFACE}"
if echo "0" >"${path}"/online &&
echo "1" >"${path}"/ungroup ; then
# The device doesn't disappear right away which breaks
# restart, or a quick start up, so wait around.
while [ -e "${path}" ] ; do :; done
fi
eend $?
}
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