net: ccwgroup: forward port changes from baselayout-1

Quite a bit of work happened in baselayout-1 on the ccwgroup module, but
seems it didn't make it into openrc.  So forward port all the existing
code so we can work with more than just qeth and layer2 options.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 56 insertions, 27 deletions

diff --git a/net/ccwgroup.sh b/net/ccwgroup.sh
index 6fcba1dd..248b159d 100644
--- a/net/ccwgroup.sh
+++ b/net/ccwgroup.sh
@@ -8,60 +8,89 @@ ccwgroup_depend()
 	before interface
 }
 
-ccwgroup_pre_start()
+ccwgroup_load_modules()
 {
-	local ccwgroup="$(_get_array "ccwgroup_${IFVAR}")"
-	[ -z "${ccwgroup}" ] && return 0
-
-	if [ ! -d /sys/bus/ccwgroup ]; then
-		modprobe qeth
-		if [ ! -d /sys/bus/ccwgroup ]; then
+	# 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
 
-	einfo "Enabling ccwgroup on ${IFACE}"
-	local x= ccw= first= layer2=
-	for x in ${ccwgroup}; do
-		[ -z "${first}" ] && first=${x}
-		ccw="${ccw}${ccw:+,}${x}"
-	done
-	if [ -e /sys/devices/qeth/"${first}" ]; then
-		echo "0" >/sys/devices/qeth/"${first}"/online
+	# 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}/${first}/online
 	else
-		echo "${ccw}" >/sys/bus/ccwgroup/drivers/qeth/group
+		echo "${first}$(printf ',%s' "$@")" >/sys/bus/ccwgroup/drivers/${ccw_type}/group
 	fi
-	eval layer2=\$qeth_layer2_${IFVAR}
-	echo "${layer2:-0}" > /sys/devices/qeth/"${first}"/layer2
-	echo "1" >/sys/devices/qeth/"${first}"/online
+
+	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 $?
 }
 
 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 /sys/class/net/"${FACE}"/driver ] && return 0
-	local driver="$(readlink /sys/class/net/"${IFACE}"/driver)"
-	case "${diver}" in
-		*/bus/ccwgroup/*);;
+	[ ! -L "${path}"/device/driver ] && return 0
+	case "$(readlink "${path}"/device/driver)" in
+		*/bus/ccwgroup/*) ;;
 		*) return 0;;
 	esac
 
-	local device="$(readlink /sys/class/net/"${IFACE}"/device)"
+	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)"
 
-	einfo "Disabling ccwgroup on ${iface}"
-	echo "0" >/sys/devices/qeth/"${device}"/online
-	echo "1" >/sys/devices/qeth/"${device}"/ungroup
+	einfo "Disabling ccwgroup/${ccw_type} on ${IFACE}"
+	echo "0" >/sys/devices/${ccw_type}/"${device}"/online
+	echo "1" >/sys/devices/${ccw_type}/"${device}"/ungroup
 	eend $?
 }