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#!/bin/bash
#==============================================================================
# Copyright IBM Corp. 2007
#
# lschp
#
# Script to list channel-path status.
#
# Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
#
# This file is part of s390-tools
#
# s390-tools is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# s390-tools is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with s390-tools; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#==============================================================================
SYSFS="/sys"
VERSION="%S390_TOOLS_VERSION%"
TOOLNAME=${0##*/}
shopt -s nullglob # glob with no match should result in empty string
# Print help text
function print_help()
{
cat <<EOF
Usage: ${TOOLNAME} <options>
List information about available channel-paths.
-h, --help Print this help, then exit
-v, --version Print version information, then exit
EOF
}
# Print version information
function print_version()
{
cat <<EOF
${TOOLNAME}: version ${VERSION}.
Copyright IBM Corp. 2007
EOF
}
# Get a sorted list of decimal css ids
function get_css_id_list()
{
local DIR
for DIR in $1/css*; do
echo $((0x${DIR##*/css}))
done | sort -n
}
# Get a sorted list of decimal channel-path ids
function get_chp_id_list()
{
local DIR
for DIR in $1/chp*; do
echo $((0x${DIR##*.}))
done | sort -n
}
# Get channel-path attribute value
function get_chp_id_attr()
{
local VAR=$1
local VAL=$4
if [ -r $2/$3 ] ; then
read < $2/$3 VAL 2>/dev/null
fi
eval $VAR=$VAL
}
# Parse command line parameters
while [ $# -gt 0 ]; do
case $1 in
-h|--help)
print_help
exit 0
;;
-v|--version)
print_version
exit 0
;;
-*|--*)
echo "$TOOLNAME: Invalid option $1" >&2
echo "Try '$TOOLNAME --help' for more information." >&2
exit 1
;;
*)
echo "$TOOLNAME: Invalid argument $1" >&2
echo "Try '$TOOLNAME --help' for more information." >&2
exit 1
;;
esac
shift
done
if [ ! -e "$SYSFS" ] ; then
echo "$TOOLNAME: $SYSFS does not exist" >&2
exit 1
fi
if [ ! -d "$SYSFS" ] ; then
echo "$TOOLNAME: $SYSFS is not a directory" >&2
exit 1
fi
# Generate output
echo "CHPID Vary Cfg. Type Cmg Shared"
echo "===================================="
CSS_ID_LIST=$(get_css_id_list $SYSFS/devices)
for CSS_ID in $CSS_ID_LIST ; do
CSS_DIR=$(printf "%s/devices/css%x" $SYSFS $CSS_ID)
CHP_ID_LIST=$(get_chp_id_list $CSS_DIR)
for CHP_ID in $CHP_ID_LIST ; do
CHP=$(printf "%x.%x" $CSS_ID $CHP_ID)
CHP_DIR="$CSS_DIR/chp$CHP"
if [ ! -d "$CHP_DIR" ] ; then
CHP=$(printf "%x.%02x" $CSS_ID $CHP_ID)
CHP_DIR="$CSS_DIR/chp$CHP"
fi
# process vary attribute
get_chp_id_attr CHP_VARY $CHP_DIR "status" "-"
if [ "$CHP_VARY" == "online" ] ; then
CHP_VARY=1
elif [ "$CHP_VARY" == "offline" ] ; then
CHP_VARY=0
fi
# process configure attribute
get_chp_id_attr CHP_CFG $CHP_DIR "configure" "-"
# process type attribute
get_chp_id_attr CHP_TYPE $CHP_DIR "type" "-"
if [ "$CHP_TYPE" != "-" ] ; then
CHP_TYPE=$(printf "%02x" "0x$CHP_TYPE")
fi
# process cmg attribute
get_chp_id_attr CHP_CMG $CHP_DIR "cmg" "-"
if [ "$CHP_CMG" == "unknown" ] ; then
CHP_CMG="-"
elif [ "$CHP_CMG" != "-" ] ; then
CHP_CMG=$(printf "%x" $CHP_CMG)
fi
# process shared attribute
get_chp_id_attr CHP_SHARED $CHP_DIR "shared" "-"
if [ "$CHP_SHARED" == "unknown" ] ; then
CHP_SHARED="-"
elif [ "$CHP_SHARED" != "-" ] ; then
CHP_SHARED=$(printf "%x" $CHP_SHARED)
fi
printf "%-5s %-4s %-4s %-4s %-3s %-6s\n" \
"$CHP" "$CHP_VARY" "$CHP_CFG" \
"$CHP_TYPE" "$CHP_CMG" "$CHP_SHARED"
done
done
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