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s390-tools
dasd_configure
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File dasd_configure of Package s390-tools
#! /bin/sh # # dasd_configure # $Id: dasd_configure,v 1.10 2004/11/26 15:50:48 hare Exp $ # # Configures a DASD # # Usage: # dasd_configure <ccwid> <online> <use_diag> # # Return values: # 1 sysfs not mounted # 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 # DEBUG=no exitcode=0 mesg () { echo "$@" } debug_mesg () { case "$DEBUG" in yes) mesg "$@" ;; *) ;; esac } if [ $# -ne 3 -a $# -ne 2 ] ; then echo "Usage: $0 <ccwid> <online> <use_diag>" exit 1 fi # Get the mount point for sysfs while read MNTPT MNTDIR MNTSYS MNTTYPE; do if test "$MNTSYS" = "sysfs"; then SYSFS="$MNTDIR" break; fi done </proc/mounts if [ -z "$SYSFS" ]; then exit 1 fi CCW_CHAN_ID=$1 ONLINE=$2 USE_DIAG=$3 [ -z "$USE_DIAG" ] && USE_DIAG=0 DEBUG="yes" if [ -z "$ONLINE" ] || [ "$ONLINE" -ne "1" -a "$ONLINE" -ne "0" ]; then debug_mesg "Invalid device status $ONLINE" exit 2 fi _ccw_dir=${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 debug_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 "No 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 debug_mesg "Could not load module ${MODULE}" exit 6 fi fi read _ccw_dev_status < $_ccw_status_dir/online fi # # We check whether we run under z/VM by looking for the string Control "Control Program: z/VM" # in /proc/sysinfo # egrep "Control Program: z/VM" /proc/sysinfo 2>&1 > /dev/null if [ -x /sbin/vmcp -a $? -eq 0 ]; then # Unconditionally load the cpint 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 "$attr" = "R/O"; then _ccw_use_readonly="1" fi fi done < /dasd_attr.lst fi rm -f /dasd_attr.lst fi if [ "$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 better set the device offline 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 # 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" > $_ccw_status_dir/online fi else if [ "$_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 # 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 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 $_ccw_status_dir/online) if [ "$_ccw_dev_status" -ne "$ONLINE" ]; then debug_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 > $_ccw_status_dir/readonly fi fi # Wait until udev is settled [ -x /sbin/udevadm ] && /sbin/udevadm settle --timeout=30 RULES_DIR=/etc/udev/rules.d RULES_FILE=51-dasd-${CCW_CHAN_ID}.rules if [ -d "$RULES_DIR" ]; then if [ -f ${RULES_DIR}/${RULES_FILE} ]; then rm -f ${RULES_DIR}/${RULES_FILE} fi if [ "$ONLINE" -eq "1" ]; then # 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
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