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#!/bin/sh
# config file syntax:
# deviceno sysfs_opts...
#
# Examples:
# 0.0.0203 readonly=1 failfast=1
# 0.0.0204
# 0.0.0205 erplog=1
[ -z "$DEVPATH" ] && exit 0
[ "$ACTION" != "add" ] && exit 0
CHANNEL=${DEVPATH##*/}
CONFIG=/etc/dasd.conf
PATH=/sbin:/bin
export PATH
warn() {
[ -e /dev/kmsg ] && echo "<4>dasdconf.sh Warning: $@" > /dev/kmsg
echo "dasdconf.sh Warning: $@" >&2
}
if [ -f "$CONFIG" ]; then
if [ ! -d /sys/bus/ccw/drivers/dasd-eckd ] && [ ! -d /sys/bus/ccw/drivers/dasd-fba ]; then
#warn "No dasd-eckd or dasd-eckd loaded"
exit 0
fi
sed 'y/ABCDEF/abcdef/' < $CONFIG | while read line; do
case $line in
\#*) ;;
*)
[ -z "$line" ] && continue
set $line
# if we are in single add mode, only add the new CHANNEL
[ "$SUBSYSTEM" = "ccw" ] && [ "$1" != "$CHANNEL" ] && continue
DEVICE=$1
SYSFSPATH=
if [ -r "/sys/bus/ccw/drivers/dasd-eckd/$DEVICE" ]; then
SYSFSPATH="/sys/bus/ccw/drivers/dasd-eckd/$DEVICE"
elif [ -r "/sys/bus/ccw/drivers/dasd-fba/$DEVICE" ]; then
SYSFSPATH="/sys/bus/ccw/drivers/dasd-fba/$DEVICE"
else
# if we are in single add mode, this is a failure!
[ "$SUBSYSTEM" = "ccw" ] && warn "Could not find $DEVICE in sysfs"
continue
fi
# skip already onlined devices
if [ "$(cat $SYSFSPATH/online)" = "1" ]; then
if [ "$SUBSYSTEM" = "ccw" ]; then
# if we are in single add mode, we should not touch the device
warn "$DEVICE is already online, not configuring"
exit 0
fi
continue
fi
shift
while [ -n "$1" ]; do
(
attribute="$1"
IFS="="
set $attribute
if [ "$1" = "use_diag" ]; then
# this module better only returns after
# all sysfs entries have the "use_diag" file
modprobe dasd_diag_mod
fi
if [ -r "$SYSFSPATH/$1" ]; then
echo $2 > $SYSFSPATH/$1 || warn "Could not set $1=$2 for $DEVICE"
else
warn "$1 does not exist for $DEVICE"
fi
)
shift
done
# Now, put the device online
echo 1 > $SYSFSPATH/online || echo "Could not activate $DEVICE"
# if we are in single add mode, we are done
[ "$SUBSYSTEM" = "ccw" ] && exit 0
;;
esac
done
fi
exit 0
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