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#!/bin/bash
create_udev_rule() {
local ccw=$1
local _drv _cu_type _dev_type
local _rule=/etc/udev/rules.d/51-dasd-${ccw}.rules
if [ -x /sbin/cio_ignore ] && cio_ignore -i $ccw > /dev/null ; then
cio_ignore -r $ccw
fi
if [ -e /sys/bus/ccw/devices/${ccw} ] ; then
read _cu_type < /sys/bus/ccw/devices/${ccw}/cutype
read _dev_type < /sys/bus/ccw/devices/${ccw}/devtype
fi
case "$_cu_type" in
3990/*|2105/*|2107/*|1750/*|9343/*)
_drv=dasd-eckd
;;
6310/*)
_drv=dasd-fba
;;
3880/*)
case "$_dev_type" in
3380/*)
_drv=dasd_eckd
;;
3370/*)
_drv=dasd-fba
;;
esac
;;
esac
[ -z "${_drv}" ] && return 0
[ -e ${_rule} ] && return 0
cat > $_rule <<EOF
ACTION=="add", SUBSYSTEM=="ccw", KERNEL=="$ccw", IMPORT{program}="collect $ccw %k ${ccw} $_drv"
ACTION=="add", SUBSYSTEM=="drivers", KERNEL=="$_drv", IMPORT{program}="collect $ccw %k ${ccw} $_drv"
ACTION=="add", ENV{COLLECT_$ccw}=="0", ATTR{[ccw/$ccw]online}="1"
EOF
}
if [[ -f /sys/firmware/ipl/ipl_type &&
$(</sys/firmware/ipl/ipl_type) = "ccw" ]] ; then
(
local _ccw=$(cat /sys/firmware/ipl/device)
create_udev_rule $_ccw
)
fi
for dasd_arg in $(getargs root=) $(getargs resume=); do
(
case $dasd_arg in
/dev/disk/by-path/ccw-*)
ccw_arg=${dasd_arg##*/}
;;
esac
if [ -n "$ccw_arg" ] ; then
OLDIFS="$IFS"
IFS="-"
set -- $ccw_arg
IFS="$OLDIFS"
create_udev_rule $2
fi
)
done
for dasd_arg in $(getargs rd.dasd=); do
(
OLDIFS="$IFS"
IFS=","
set -- $dasd_arg
IFS="$OLDIFS"
while (($# > 0)); do
case $1 in
autodetect|probeonly)
shift
;;
*-*)
range=$1
OLDIFS="$IFS"
IFS="-"
set -- $range
prefix=${1%.*}
start=${1##*.}
shift
end=${1##.}
shift
IFS="$OLDIFS"
for dev in $(seq $(( 16#$start )) $(( 16#$end )) ) ; do
create_udev_rule $(printf "%s.%04x" "$prefix" "$dev")
done
;;
*)
dev=${1%(ro)}
if [ "$dev" != "$1" ] ; then
ro=1
fi
OLDIFS="$IFS"
IFS="."
set -- $dev
sid=$1
shift
ssid=$1
shift
chan=$1
IFS="$OLDIFS"
create_udev_rule $(printf "%01x.%01x.%04x" $(( 16#$sid )) $(( 16#$ssid )) $(( 16#$chan )) )
shift
;;
esac
done
)
done