forked from pool/s390-tools
410 lines
11 KiB
Plaintext
410 lines
11 KiB
Plaintext
|
#! /bin/sh
|
||
|
|
#
|
||
|
|
# dasd_configure
|
||
|
|
# $Id: dasd_configure,v 1.10 2004/11/26 15:50:48 hare Exp $
|
||
|
|
#
|
||
|
|
# Copyright (c) 2001-2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
|
||
|
|
#
|
||
|
|
# Configures or deconfigures a DASD device
|
||
|
|
#
|
||
|
|
# Usage:
|
||
|
|
# dasd_configure [-f -t <dasd_type> ] <ccwid> <online> [use_diag]
|
||
|
|
#
|
||
|
|
# -f force creation of udev rules, do not check values in /sys.
|
||
|
|
# -t DASD type. Must be provided if -f is used.
|
||
|
|
# ccwid = x.y.ssss where
|
||
|
|
# x is always 0 until IBM creates something that uses that number
|
||
|
|
# y is the logical channel subsystem (lcss) number. Most often this is 0, but it could be non-zero
|
||
|
|
# ssss is the four digit subchannel address of the device, in hexidecimal, with leading zeros.
|
||
|
|
# online = 0 to take the device offline
|
||
|
|
# 1 to bring the device online
|
||
|
|
# use_diag = 0 to _not_ use z/VM DIAG250 I/O, which is the default
|
||
|
|
# 1 to use z/VM DIAG250 I/O
|
||
|
|
#
|
||
|
|
# Return values:
|
||
|
|
# 1 If the "Usage:" line is displayed, not enough parameters specified.
|
||
|
|
# 1 sysfs not mounted (if the "Usage:" line is not displayed).
|
||
|
|
# 2 Invalid status for <online>
|
||
|
|
# 3 No device found for <ccwid>
|
||
|
|
# 4 Could not change state of the device
|
||
|
|
# 5 Device is not a DASD
|
||
|
|
# 6 Could not load module
|
||
|
|
# 7 Failed to activate DASD
|
||
|
|
# 8 DASD not formatted
|
||
|
|
# 9 Only dasd-fba or dasd-eckd is supported.
|
||
|
|
#
|
||
|
|
|
||
|
|
if [ "${DEBUG}" != "yes" ]; then
|
||
|
|
DEBUG="no"
|
||
|
|
fi
|
||
|
|
|
||
|
|
exitcode=0
|
||
|
|
DASD_FORCE=0
|
||
|
|
DASD_TYPE="unknown"
|
||
|
|
|
||
|
|
DATUM=$(date)
|
||
|
|
|
||
|
|
add_channel_for_cio() {
|
||
|
|
echo "$* # $DATUM" >> /boot/zipl/active_devices.txt
|
||
|
|
}
|
||
|
|
|
||
|
|
remove_channel_for_cio() {
|
||
|
|
[ -w /boot/zipl/active_devices.txt ] && sed -i -e "/^$1/d" /boot/zipl/active_devices.txt
|
||
|
|
}
|
||
|
|
|
||
|
|
mesg () {
|
||
|
|
echo "$@"
|
||
|
|
}
|
||
|
|
|
||
|
|
debug_mesg () {
|
||
|
|
case "$DEBUG" in
|
||
|
|
yes) mesg "$@" ;;
|
||
|
|
*) ;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
if [ $# -lt 2 ] ; then
|
||
|
|
echo "Usage: $0 [options] <ccwid> <online> [use_diag]"
|
||
|
|
echo
|
||
|
|
echo " -f force creation of udev rules, do not check values in /sys."
|
||
|
|
echo " -t DASD type. Must be provided if -f is used."
|
||
|
|
echo " ccwid = x.y.ssss where"
|
||
|
|
echo " x is always 0 until IBM creates something that uses that number"
|
||
|
|
echo " y is the logical channel subsystem (lcss) number. Most often this is 0, but it could be non-zero"
|
||
|
|
echo " ssss is the four digit subchannel address of the device, in hexidecimal, with leading zeros."
|
||
|
|
echo " online = 0 to take the device offline"
|
||
|
|
echo " 1 to bring the device online"
|
||
|
|
echo " use_diag = 0 to _not_ use z/VM DIAG250 I/O, which is the default"
|
||
|
|
echo " 1 to use z/VM DIAG250 I/O"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
while [ $# -gt 0 ] ; do
|
||
|
|
case "$1" in
|
||
|
|
-f) # force creation of udev rules, do not check values in /sys
|
||
|
|
DASD_FORCE=1
|
||
|
|
;;
|
||
|
|
-t*) # drive type. Must be provided if -f is used.
|
||
|
|
if [ "$1" = "-t" ] ; then
|
||
|
|
if [ "$2" = "dasd-eckd" -o "$2" = "dasd-fba" ]; then
|
||
|
|
DASD_TYPE=$2
|
||
|
|
shift
|
||
|
|
else
|
||
|
|
debug_mesg "Only dasd-eckd or dasd-fba are supported."
|
||
|
|
exit 9
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
break;
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
shift
|
||
|
|
done
|
||
|
|
|
||
|
|
if [ $DASD_FORCE -eq 0 ]; then
|
||
|
|
# Get the mount point for sysfs
|
||
|
|
while read MNTPT MNTDIR MNTSYS MNTTYPE; do
|
||
|
|
if test "$MNTSYS" = "sysfs"; then
|
||
|
|
SYSFS="$MNTDIR"
|
||
|
|
break;
|
||
|
|
fi
|
||
|
|
done </proc/mounts
|
||
|
|
|
||
|
|
if [ -z "$SYSFS" ]; then
|
||
|
|
mesg "/sysfs not present"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
CCW_CHAN_NAME=$DASD_TYPE
|
||
|
|
case $DASD_TYPE in
|
||
|
|
*eckd)
|
||
|
|
DISCIPLINE=ECKD
|
||
|
|
;;
|
||
|
|
*fba)
|
||
|
|
DISCIPLINE=FBA
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
mesg "Only dasd-eckd or dasd-fba are supported."
|
||
|
|
exit 9
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
fi # First instance of if [ $DASD_FORCE -eq 0 ]
|
||
|
|
|
||
|
|
CCW_CHAN_ID=$1
|
||
|
|
ONLINE=$2
|
||
|
|
USE_DIAG=$3
|
||
|
|
|
||
|
|
[ -z "$USE_DIAG" ] && USE_DIAG=0
|
||
|
|
|
||
|
|
if [ -z "$ONLINE" ] || [ "$ONLINE" -ne "1" -a "$ONLINE" -ne "0" ]; then
|
||
|
|
mesg "Invalid device status $ONLINE"
|
||
|
|
mesg "It must be a zero or a one."
|
||
|
|
exit 2
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ $DASD_FORCE -eq 0 ]; then
|
||
|
|
_ccw_dir=${SYSFS}/bus/ccw/devices
|
||
|
|
|
||
|
|
debug_mesg "Configuring device ${CCW_CHAN_ID}"
|
||
|
|
_ccw_status_dir="$_ccw_dir/$CCW_CHAN_ID"
|
||
|
|
|
||
|
|
if test ! -d "$_ccw_status_dir" ; then
|
||
|
|
if test "$ONLINE" -eq 1 ; then
|
||
|
|
mesg "No device ${CCW_CHAN_ID}"
|
||
|
|
exit 3
|
||
|
|
fi
|
||
|
|
_ccw_dev_status=0
|
||
|
|
else
|
||
|
|
read _cu_type < $_ccw_status_dir/cutype
|
||
|
|
read _dev_type < $_ccw_status_dir/devtype
|
||
|
|
|
||
|
|
case "$_cu_type" in
|
||
|
|
3990/*|2105/*|2107/*|1750/*|9343/*)
|
||
|
|
CCW_CHAN_NAME="dasd-eckd"
|
||
|
|
MODULE=dasd_eckd_mod
|
||
|
|
DISCIPLINE=ECKD
|
||
|
|
;;
|
||
|
|
6310/*)
|
||
|
|
CCW_CHAN_NAME="dasd-fba"
|
||
|
|
MODULE=dasd_fba_mod
|
||
|
|
DISCIPLINE=FBA
|
||
|
|
;;
|
||
|
|
3880/*)
|
||
|
|
case "$_dev_type" in
|
||
|
|
3390/*)
|
||
|
|
CCW_CHAN_NAME="dasd-eckd"
|
||
|
|
MODULE=dasd_eckd_mod
|
||
|
|
DISCIPLINE=ECKD
|
||
|
|
;;
|
||
|
|
3370/*)
|
||
|
|
CCW_CHAN_NAME="dasd-fba"
|
||
|
|
MODULE=dasd_fba_mod
|
||
|
|
DISCIPLINE=FBA
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
CCW_CHAN_NAME=
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
CCW_CHAN_NAME=
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
if [ -z "$CCW_CHAN_NAME" ]; then
|
||
|
|
mesg "Not a DASD device (cu $_cutype, dev $_devtype)"
|
||
|
|
exit 5
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check for modules
|
||
|
|
if test ! -d "${SYSFS}/bus/ccw/drivers/${CCW_CHAN_NAME}" ; then
|
||
|
|
/sbin/modprobe $MODULE
|
||
|
|
|
||
|
|
# Re-check whether module loading has succeeded
|
||
|
|
if test ! -d "${SYSFS}/bus/ccw/drivers/${CCW_CHAN_NAME}"; then
|
||
|
|
mesg "Could not load module ${MODULE}"
|
||
|
|
exit 6
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
read _ccw_dev_status < $_ccw_status_dir/online
|
||
|
|
fi # if test ! -d "$_ccw_status_dir"
|
||
|
|
|
||
|
|
#
|
||
|
|
# We check whether we are running under z/VM by looking for the string
|
||
|
|
# "Control Program: z/VM" in /proc/sysinfo
|
||
|
|
#
|
||
|
|
/bin/grep "Control Program: z/VM" /proc/sysinfo 2>&1 > /dev/null
|
||
|
|
if [ -x /sbin/vmcp -a $? -eq 0 ]; then
|
||
|
|
# Unconditionally load the vmcp module, loader might be broken
|
||
|
|
[ -x /sbin/modprobe ] && /sbin/modprobe -q vmcp
|
||
|
|
# Wait until udev is settled
|
||
|
|
[ -x /sbin/udevadm ] && /sbin/udevadm settle --timeout=30
|
||
|
|
|
||
|
|
# Check read-only status of virtual DASDs from z/VM
|
||
|
|
if /sbin/vmcp q v dasd > /dasd_attr.lst 2> /dev/null; then
|
||
|
|
while read x dev type label attr1 attr2 rest; do
|
||
|
|
dev=`echo $dev|tr A-F a-f`
|
||
|
|
if test "$type" = "ON"; then
|
||
|
|
attr="$attr2"
|
||
|
|
else
|
||
|
|
attr="$attr1"
|
||
|
|
fi
|
||
|
|
if [ "$CCW_CHAN_ID" = "0.0.$dev" ]; then
|
||
|
|
if test "$attr" = "R/O"; then
|
||
|
|
_ccw_use_readonly="1"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
done < /dasd_attr.lst
|
||
|
|
fi
|
||
|
|
rm -f /dasd_attr.lst
|
||
|
|
fi # if [ -x /sbin/vmcp -a $? -eq 0 ]
|
||
|
|
|
||
|
|
if [ "$ONLINE" -eq 1 ]; then
|
||
|
|
# Check whether we need to do something
|
||
|
|
read _ccw_use_diag < $_ccw_status_dir/use_diag
|
||
|
|
|
||
|
|
if [ "$_ccw_use_diag" -ne "$USE_DIAG" ] &&
|
||
|
|
[ "$_ccw_dev_status" -eq 1 ] ; then
|
||
|
|
# We need to change the DIAG access mode
|
||
|
|
# so we have to set the device offline first
|
||
|
|
debug_mesg "Setting device offline for DIAG access"
|
||
|
|
echo "0" > $_ccw_status_dir/online
|
||
|
|
# Re-read device status
|
||
|
|
read _ccw_dev_status < $_ccw_status_dir/online
|
||
|
|
if [ "$_ccw_dev_status" -ne 0 ]; then
|
||
|
|
mesg "Could not set the device offline for DIAG access"
|
||
|
|
exit 4
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$_ccw_dev_status" -eq 0 ]; then
|
||
|
|
# Set readonly access if detected
|
||
|
|
if [ "$_ccw_use_readonly" ]; then
|
||
|
|
debug_mesg "Setting device read-only"
|
||
|
|
echo 1 > $_ccw_status_dir/readonly
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$USE_DIAG" -eq 1 ]; then
|
||
|
|
# Load the diag module if possible
|
||
|
|
[ -x /sbin/modprobe ] && /sbin/modprobe -q dasd_diag_mod
|
||
|
|
_has_dasd_diag=$(/bin/sed -n '/^dasd_diag_mod/p' /proc/modules)
|
||
|
|
if [ "$_has_dasd_diag" ]; then
|
||
|
|
# DIAG mode is special:
|
||
|
|
# We can only be sure if DIAG is available
|
||
|
|
# _after_ we have activated the device
|
||
|
|
debug_mesg "Activating DIAG access mode"
|
||
|
|
echo "$USE_DIAG" > $_ccw_status_dir/use_diag
|
||
|
|
read _ccw_use_diag < $_ccw_status_dir/use_diag
|
||
|
|
# Set the device online
|
||
|
|
debug_mesg "Setting device online"
|
||
|
|
echo "1" > $_ccw_status_dir/online 2>/dev/null
|
||
|
|
# Re-read device status
|
||
|
|
read _ccw_dev_status < $_ccw_status_dir/online
|
||
|
|
if [ "$_ccw_dev_status" -eq 0 ]; then
|
||
|
|
mesg "Could not activate DIAG access mode for device ${CCW_CHAN_ID}"
|
||
|
|
USE_DIAG=0
|
||
|
|
echo "$USE_DIAG" > $_ccw_status_dir/use_diag
|
||
|
|
# Set the device online
|
||
|
|
debug_mesg "Setting device online"
|
||
|
|
echo "1" > $_ccw_status_dir/online
|
||
|
|
else
|
||
|
|
MODULE=dasd_diag_mod
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
debug_mesg "DIAG mode not available"
|
||
|
|
USE_DIAG=0
|
||
|
|
# Set the device online
|
||
|
|
debug_mesg "Setting device online"
|
||
|
|
echo "1" > $_ccw_status_dir/online
|
||
|
|
fi # if [ "$_has_dasd_diag" ];
|
||
|
|
else
|
||
|
|
if [ "$_ccw_use_diag" -eq 1 ] ; then
|
||
|
|
debug_mesg "Deactivating DIAG access mode"
|
||
|
|
echo "0" > $_ccw_status_dir/use_diag
|
||
|
|
read _ccw_use_diag < $_ccw_status_dir/use_diag
|
||
|
|
fi
|
||
|
|
# Set the device online
|
||
|
|
debug_mesg "Setting device online"
|
||
|
|
echo "1" > $_ccw_status_dir/online
|
||
|
|
fi # if [ "$USE_DIAG" -eq 1 ]
|
||
|
|
|
||
|
|
# Re-read device status
|
||
|
|
read _ccw_dev_status < $_ccw_status_dir/online
|
||
|
|
if [ "$_ccw_dev_status" -eq 0 ]; then
|
||
|
|
mesg "Could not set device ${CCW_CHAN_ID} online"
|
||
|
|
exit 4
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Wait for the device to come online
|
||
|
|
read _dasd_state < $_ccw_status_dir/status
|
||
|
|
i=0
|
||
|
|
while [ "$_dasd_state" != "online" ] ; do
|
||
|
|
if [ "$_dasd_state" = "unformatted" ] ; then
|
||
|
|
mesg "Device ${CCW_CHAN_ID} is unformatted"
|
||
|
|
exitcode=8
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
[ $i -gt 30 ] && break
|
||
|
|
i=$(expr $i + 1)
|
||
|
|
sleep .1
|
||
|
|
read _dasd_state < $_ccw_status_dir/status
|
||
|
|
done
|
||
|
|
else
|
||
|
|
debug_mesg "Device ${CCW_CHAN_ID} is already online"
|
||
|
|
fi # if [ "$_ccw_dev_status" -eq 0 ]
|
||
|
|
|
||
|
|
read _dasd_state < $_ccw_status_dir/status
|
||
|
|
if [ "$_dasd_state" != "online" ] && [ "$_dasd_state" != "unformatted" ] ; then
|
||
|
|
mesg "Failed to activate device ${CCW_CHAN_ID}, device in state $_dasd_state"
|
||
|
|
exit 7
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
if [ "$_ccw_dev_status" -eq 1 ]; then
|
||
|
|
# Set the device offline
|
||
|
|
debug_mesg "Setting device offline"
|
||
|
|
echo "$ONLINE" > $_ccw_status_dir/online
|
||
|
|
|
||
|
|
# Re-read to check whether we have succeeded
|
||
|
|
_ccw_dev_status=$(cat $_ccw_status_dir/online)
|
||
|
|
if [ "$?" -ne 0 -o "$_ccw_dev_status" -ne "$ONLINE" ]; then
|
||
|
|
mesg "Could not set device ${CCW_CHAN_ID} offline"
|
||
|
|
exit 4
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
debug_mesg "Device ${CCW_CHAN_ID} is already offline"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ -d "$_ccw_status_dir" ] ; then
|
||
|
|
# Always disabling DIAG access
|
||
|
|
echo "0" > $_ccw_status_dir/use_diag
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Set readonly access if detected
|
||
|
|
if [ "$_ccw_use_readonly" ]; then
|
||
|
|
debug_mesg "Setting device read-only"
|
||
|
|
echo 1 > $_ccw_status_dir/readonly
|
||
|
|
fi
|
||
|
|
fi # if [ "$ONLINE" -eq 1 ]
|
||
|
|
|
||
|
|
# Wait until udev is settled
|
||
|
|
[ -x /sbin/udevadm ] && /sbin/udevadm settle --timeout=30
|
||
|
|
|
||
|
|
fi # Second instance of if [ $DASD_FORCE -eq 0 ]
|
||
|
|
|
||
|
|
if [ $DEBUG = "no" ]; then
|
||
|
|
RULES_DIR=/etc/udev/rules.d
|
||
|
|
else
|
||
|
|
RULES_DIR=.
|
||
|
|
fi
|
||
|
|
|
||
|
|
RULES_FILE=51-dasd-${CCW_CHAN_ID}.rules
|
||
|
|
|
||
|
|
if [ -d "$RULES_DIR" ]; then
|
||
|
|
if [ -f ${RULES_DIR}/${RULES_FILE} ]; then
|
||
|
|
rm -f ${RULES_DIR}/${RULES_FILE}
|
||
|
|
fi
|
||
|
|
remove_channel_for_cio "${CCW_CHAN_ID}"
|
||
|
|
|
||
|
|
if [ "$ONLINE" -eq "1" ]; then
|
||
|
|
add_channel_for_cio "${CCW_CHAN_ID}"
|
||
|
|
# Write a new hwcfg file
|
||
|
|
cat > ${RULES_DIR}/${RULES_FILE} <<EOF
|
||
|
|
# Configure DASD device at ${CCW_CHAN_ID} (${DISCIPLINE} mode)
|
||
|
|
ACTION=="add", SUBSYSTEM=="ccw", KERNEL=="${CCW_CHAN_ID}", IMPORT{program}="collect ${CCW_CHAN_ID} %k ${CCW_CHAN_ID} ${CCW_CHAN_NAME}"
|
||
|
|
ACTION=="add", SUBSYSTEM=="drivers", KERNEL=="${CCW_CHAN_NAME}", IMPORT{program}="collect ${CCW_CHAN_ID} %k ${CCW_CHAN_ID} ${CCW_CHAN_NAME}"
|
||
|
|
EOF
|
||
|
|
if [ "$USE_DIAG" -eq 1 ]; then
|
||
|
|
cat >> ${RULES_DIR}/${RULES_FILE} <<EOF
|
||
|
|
ACTION=="add", ENV{COLLECT_${CCW_CHAN_ID}}=="0", ATTR{[ccw/$CCW_CHAN_ID]use_diag}="1"
|
||
|
|
EOF
|
||
|
|
fi
|
||
|
|
cat >> ${RULES_DIR}/${RULES_FILE} <<EOF
|
||
|
|
ACTION=="add", ENV{COLLECT_${CCW_CHAN_ID}}=="0", ATTR{[ccw/$CCW_CHAN_ID]online}="1"
|
||
|
|
EOF
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
exit $exitcode
|