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