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