Current File : //lib/dracut/modules.d/80cms/cmssetup.sh
#!/bin/bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
function sysecho () {
file="$1"
shift
local i=1
while [ $i -le 10 ] ; do
if [ ! -f "$file" ]; then
sleep 1
i=$((i+1))
else
break
fi
done
local status
read status < "$file"
if [[ ! $status == $* ]]; then
[ -f "$file" ] && echo $* > "$file"
fi
}
function dasd_settle() {
local dasd_status=/sys/bus/ccw/devices/$1/status
if [ ! -f $dasd_status ]; then
return 1
fi
local i=1
while [ $i -le 60 ] ; do
local status
read status < $dasd_status
case $status in
online|unformatted)
return 0 ;;
*)
sleep 0.1
i=$((i+1)) ;;
esac
done
return 1
}
function dasd_settle_all() {
for dasdccw in $(while read line; do echo "${line%%(*}"; done < /proc/dasd/devices) ; do
if ! dasd_settle $dasdccw ; then
echo $"Could not access DASD $dasdccw in time"
return 1
fi
done
return 0
}
# prints a canonocalized device bus ID for a given devno of any format
function canonicalize_devno()
{
case ${#1} in
3) echo "0.0.0${1}" ;;
4) echo "0.0.${1}" ;;
*) echo "${1}" ;;
esac
return 0
}
# read file from CMS and write it to /tmp
function readcmsfile() # $1=dasdport $2=filename
{
local dev
local numcpus
local devname
local ret=0
if [ $# -ne 2 ]; then return; fi
# precondition: udevd created dasda block device node
if ! dasd_cio_free -d $1 ; then
echo $"DASD $1 could not be cleared from device blacklist"
return 1
fi
modprobe dasd_mod dasd=$CMSDASD
modprobe dasd_eckd_mod
udevadm settle
# precondition: dasd_eckd_mod driver incl. dependencies loaded,
# dasd_mod must be loaded without setting any DASD online
dev=$(canonicalize_devno $1)
numcpus=$(
while read line; do
if strstr "$line" "# processors"; then
echo ${line##*:};
break;
fi;
done < /proc/cpuinfo
)
if [ ${numcpus} -eq 1 ]; then
echo 1 > /sys/bus/ccw/devices/$dev/online
else
if ! sysecho /sys/bus/ccw/devices/$dev/online 1; then
echo $"DASD $dev could not be set online"
return 1
fi
udevadm settle
if ! dasd_settle $dev ; then
echo $"Could not access DASD $dev in time"
return 1
fi
fi
udevadm settle
devname=$(cd /sys/bus/ccw/devices/$dev/block; set -- *; [ -b /dev/$1 ] && echo $1)
devname=${devname:-dasda}
[[ -d /mnt ]] || mkdir /mnt
if cmsfs-fuse --to=UTF-8 -a /dev/$devname /mnt; then
cat /mnt/$2 > /run/initramfs/$2
umount /mnt || umount -l /mnt
udevadm settle
else
echo $"Could not read conf file $2 on CMS DASD $1."
ret=1
fi
if ! sysecho /sys/bus/ccw/devices/$dev/online 0; then
echo $"DASD $dev could not be set offline again"
#return 1
fi
udevadm settle
# unbind all dasds to unload the dasd modules for a clean start
( cd /sys/bus/ccw/drivers/dasd-eckd; for i in *.*; do echo $i > unbind;done)
udevadm settle
modprobe -r dasd_eckd_mod
udevadm settle
modprobe -r dasd_diag_mod
udevadm settle
modprobe -r dasd_mod
udevadm settle
return $ret
}
processcmsfile()
{
source /tmp/cms.conf
SUBCHANNELS="$(echo $SUBCHANNELS | sed 'y/ABCDEF/abcdef/')"
if [[ $NETTYPE ]]; then
(
echo -n $NETTYPE,$SUBCHANNELS
[[ $PORTNAME ]] && echo -n ",portname=$PORTNAME"
[[ $LAYER2 ]] && echo -n ",layer2=$LAYER2"
[[ "$NETTYPE" = "ctc" ]] && [[ $CTCPROT ]] && echo -n ",protocol=$CTCPROT"
echo
) >> /etc/ccw.conf
OLDIFS=$IFS
IFS=,
read -a subch_array <<< "indexzero,$SUBCHANNELS"
IFS=$OLDIFS
devbusid=${subch_array[1]}
if [ "$NETTYPE" = "ctc" ]; then
driver="ctcm"
else
driver=$NETTYPE
fi
printf 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="%s", KERNELS=="%s", ENV{INTERFACE}=="?*", RUN+="/sbin/initqueue --onetime --unique --name cmsifup-$env{INTERFACE} /sbin/cmsifup $env{INTERFACE}"\n' "$driver" "$devbusid" > /etc/udev/rules.d/99-cms.rules
# remove the default net rules
rm -f -- /etc/udev/rules.d/91-default-net.rules
[[ -f /etc/udev/rules.d/90-net.rules ]] \
|| printf 'SUBSYSTEM=="net", ACTION=="online", RUN+="/sbin/initqueue --onetime --env netif=$env{INTERFACE} source_hook initqueue/online"\n' >> /etc/udev/rules.d/99-cms.rules
udevadm control --reload
znet_cio_free
fi
if [[ $DASD ]] && [[ $DASD != "none" ]]; then
echo $DASD | normalize_dasd_arg > /etc/dasd.conf
echo "options dasd_mod dasd=$DASD" > /etc/modprobe.d/dasd_mod.conf
dasd_cio_free
fi
unset _do_zfcp
for i in ${!FCP_*}; do
echo "${!i}" | while read port rest; do
case $port in
*.*.*)
;;
*.*)
port="0.$port"
;;
*)
port="0.0.$port"
;;
esac
echo $port $rest >> /etc/zfcp.conf
done
_do_zfcp=1
done
[[ $_do_zfcp ]] && zfcp_cio_free
unset _do_zfcp
}
[[ $CMSDASD ]] || CMSDASD=$(getarg "CMSDASD=")
[[ $CMSCONFFILE ]] || CMSCONFFILE=$(getarg "CMSCONFFILE=")
# Parse configuration
if [ -n "$CMSDASD" -a -n "$CMSCONFFILE" ]; then
if readcmsfile $CMSDASD $CMSCONFFILE; then
ln -s /run/initramfs/$CMSCONFFILE /tmp/$CMSCONFFILE
ln -s /run/initramfs/$CMSCONFFILE /tmp/cms.conf
processcmsfile
fi
fi
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