name : o_scsi_logging_level #! /bin/bash ############################################################################### # Conveniently create and set scsi logging level, show SCSI_LOG fields in human # readable form. # # Copyright (C) IBM Corp. 2006 # # This program 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. # # This program 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 this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301, USA. ############################################################################### # Contributed by Andreas Herrmann <aherrman@de.ibm.com> 2006/08/18 SCRIPTNAME="scsi_logging_level" declare -i LOG_ERROR=0 declare -i LOG_TIMEOUT=0 declare -i LOG_SCAN=0 declare -i LOG_MLQUEUE=0 declare -i LOG_MLCOMPLETE=0 declare -i LOG_LLQUEUE=0 declare -i LOG_LLCOMPLETE=0 declare -i LOG_HLQUEUE=0 declare -i LOG_HLCOMPLETE=0 declare -i LOG_IOCTL=0 declare -i LEVEL=0 _ERROR_SHIFT=0 _TIMEOUT_SHIFT=3 _SCAN_SHIFT=6 _MLQUEUE_SHIFT=9 _MLCOMPLETE_SHIFT=12 _LLQUEUE_SHIFT=15 _LLCOMPLETE_SHIFT=18 _HLQUEUE_SHIFT=21 _HLCOMPLETE_SHIFT=24 _IOCTL_SHIFT=27 SET=0 GET=0 CREATE=0 OPTS=`getopt -o hvcgsa:E:T:S:I:M:L:H: --long \ help,version,create,get,set,all:,error:,timeout:,scan:,ioctl:,\ midlevel:,mlqueue:,mlcomplete:,lowlevel:,llqueue:,llcomplete:,\ highlevel:,hlqueue:,hlcomplete: -n \'$SCRIPTNAME\' -- "$@"` eval set -- "$OPTS" # print version info printversion() { cat <<EOF $SCRIPTNAME (s390-tools) %S390_TOOLS_VERSION% (C) Copyright IBM Corp. 2006 EOF } # print usage and help printhelp() { cat <<EOF Usage: $SCRIPTNAME [OPTIONS] Create, get or set scsi logging level. Options: -h, --help print this help -v, --version print version information -s, --set create and set logging level as specified on command line -g, --get get current logging level and display it -c, --create create logging level as specified on command line -a, --all specify value for all SCSI_LOG fields -E, --error specify SCSI_LOG_ERROR -T, --timeout specify SCSI_LOG_TIMEOUT -S, --scan specify SCSI_LOG_SCAN -M, --midlevel specify SCSI_LOG_MLQUEUE and SCSI_LOG_MLCOMPLETE --mlqueue specify SCSI_LOG_MLQUEUE --mlcomplete specify SCSI_LOG_MLCOMPLETE -L, --lowlevel specify SCSI_LOG_LLQUEUE and SCSI_LOG_LLCOMPLETE --llqueue specify SCSI_LOG_LLQUEUE --llcomplete specify SCSI_LOG_LLCOMPLETE -H, --highlevel specify SCSI_LOG_HLQUEUE and SCSI_LOG_HLCOMPLETE --hlqueue specify SCSI_LOG_HLQUEUE --hlcomplete specify SCSI_LOG_HLCOMPLETE -I, --ioctl specify SCSI_LOG_IOCTL Exactly one of the options "-c", "-g" and "-s" has to be specified. Valid values for SCSI_LOG fields are integers from 0 to 7. Note: Several SCSI_LOG fields can be specified using several options. When multiple options specify same SCSI_LOG field the most specific option has precedence. Example: "scsi_logging_level --hlqueue 3 --hlcomplete 2 --all 1 -s" sets SCSI_LOG_HLQUEUE=3, SCSI_LOG_HLCOMPLETE=2 and assigns all other SCSI_LOG fields the value 1. EOF } check_level() { # something is wrong with the following if ... dpg 20061027 # if [ `echo -n $1 | tr --complement [:digit:] 'a' | grep -s 'a'` ] # then # invalid_cmdline "log level '$1' out of range [0, 7]" # fi if [ $1 -lt 0 -o $1 -gt 7 ] then invalid_cmdline "log level '$1' out of range [0, 7]" fi } # check cmd line arguments check_cmdline() { while true ; do case "$1" in -a|--all) _ALL=$2; check_level $2 shift 2;; -c|--create) CREATE=1; shift 1;; -g|--get) GET=1 shift 1;; -h|--help) printhelp exit 0;; -s|--set) SET=1 shift 1;; -v|--version) printversion exit 0;; -E|--error) _ERROR=$2; check_level $2 shift 2;; -T|--timeout) _TIMEOUT=$2; check_level $2 shift 2;; -S|--scan) _SCAN=$2; check_level $2 shift 2;; -M|--midlevel) _ML=$2; check_level $2 shift 2;; --mlqueue) _MLQUEUE=$2; check_level $2 shift 2;; --mlcomplete) _MLCOMPLETE=$2; check_level $2 shift 2;; -L|--lowlevel) _LL=$2; check_level $2 shift 2;; --llqueue) _LLQUEUE=$2; check_level $2 shift 2;; --llcomplete) _LLCOMPLETE=$2; check_level $2 shift 2;; -H|--highlevel) _HL=$2; check_level $2 shift 2;; --hlqueue) _HLQUEUE=$2; check_level $2 shift 2;; --hlcomplete) _HLCOMPLETE=$2; check_level $2 shift 2;; -I|--ioctl) _IOCTL=$2; check_level $2 shift 2;; --) shift; break;; *) echo "Internal error!" ; exit 1;; esac done if [ -n "$*" ] then invalid_cmdline invalid parameter $* fi if [ $GET = "1" -a $SET = "1" ] then invalid_cmdline options \'-c\', \'-g\' and \'-s\' are mutual exclusive elif [ $GET = "1" -a $CREATE = "1" ] then invalid_cmdline options \'-c\', \'-g\' and \'-s\' are mutual exclusive elif [ $SET = "1" -a $CREATE = "1" ] then invalid_cmdline options \'-c\', \'-g\' and \'-s\' are mutual exclusive fi LOG_ERROR=${_ERROR:-${_ALL:-0}} LOG_TIMEOUT=${_TIMEOUT:-${_ALL:-0}} LOG_SCAN=${_SCAN:-${_ALL:-0}} LOG_MLQUEUE=${_MLQUEUE:-${_ML:-${_ALL:-0}}} LOG_MLCOMPLETE=${_MLCOMPLETE:-${_ML:-${_ALL:-0}}} LOG_LLQUEUE=${_LLQUEUE:-${_LL:-${_ALL:-0}}} LOG_LLCOMPLETE=${_LLCOMPLETE:-${_LL:-${_ALL:-0}}} LOG_HLQUEUE=${_HLQUEUE:-${_HL:-${_ALL:-0}}} LOG_HLCOMPLETE=${_HLCOMPLETE:-${_HL:-${_ALL:-0}}} LOG_IOCTL=${_IOCTL:-${_ALL:-0}} } invalid_cmdline() { echo "$SCRIPTNAME: $*" echo "$SCRIPTNAME: Try '$SCRIPTNAME --help' for more information." exit 1 } get_logging_level() { echo "Current scsi logging level:" LEVEL=`sysctl -n dev.scsi.logging_level` if [ $? != 0 ] then echo "$SCRIPTNAME: could not read scsi logging level" \ "(kernel probably without SCSI_LOGGING support)" exit 1 fi } show_logging_level() { echo "dev.scsi.logging_level = $LEVEL" LOG_ERROR=$((($LEVEL>>$_ERROR_SHIFT) & 7)) LOG_TIMEOUT=$((($LEVEL>>$_TIMEOUT_SHIFT) & 7)) LOG_SCAN=$((($LEVEL>>$_SCAN_SHIFT) & 7)) LOG_MLQUEUE=$((($LEVEL>>$_MLQUEUE_SHIFT) & 7)) LOG_MLCOMPLETE=$((($LEVEL>>$_MLCOMPLETE_SHIFT) & 7)) LOG_LLQUEUE=$((($LEVEL>>$_LLQUEUE_SHIFT) & 7)) LOG_LLCOMPLETE=$((($LEVEL>>$_LLCOMPLETE_SHIFT) & 7)) LOG_HLQUEUE=$((($LEVEL>>$_HLQUEUE_SHIFT) & 7)) LOG_HLCOMPLETE=$((($LEVEL>>$_HLCOMPLETE_SHIFT) & 7)) LOG_IOCTL=$((($LEVEL>>$_IOCTL_SHIFT) & 7)) echo "SCSI_LOG_ERROR=$LOG_ERROR" echo "SCSI_LOG_TIMEOUT=$LOG_TIMEOUT" echo "SCSI_LOG_SCAN=$LOG_SCAN" echo "SCSI_LOG_MLQUEUE=$LOG_MLQUEUE" echo "SCSI_LOG_MLCOMPLETE=$LOG_MLCOMPLETE" echo "SCSI_LOG_LLQUEUE=$LOG_LLQUEUE" echo "SCSI_LOG_LLCOMPLETE=$LOG_LLCOMPLETE" echo "SCSI_LOG_HLQUEUE=$LOG_HLQUEUE" echo "SCSI_LOG_HLCOMPLETE=$LOG_HLCOMPLETE" echo "SCSI_LOG_IOCTL=$LOG_IOCTL" } set_logging_level() { echo "New scsi logging level:" sysctl -q -w dev.scsi.logging_level=$LEVEL if [ $? != 0 ] then echo "$SCRIPTNAME: could not write scsi logging level" \ "(kernel probably without SCSI_LOGGING support)" exit 1 fi } create_logging_level() { LEVEL=$((($LOG_ERROR & 7)<<$_ERROR_SHIFT)) LEVEL=$(($LEVEL|(($LOG_TIMEOUT & 7)<<$_TIMEOUT_SHIFT))) LEVEL=$(($LEVEL|(($LOG_SCAN & 7)<<$_SCAN_SHIFT))) LEVEL=$(($LEVEL|(($LOG_MLQUEUE & 7)<<$_MLQUEUE_SHIFT))) LEVEL=$(($LEVEL|(($LOG_MLCOMPLETE & 7)<<$_MLCOMPLETE_SHIFT))) LEVEL=$(($LEVEL|(($LOG_LLQUEUE & 7)<<$_LLQUEUE_SHIFT))) LEVEL=$(($LEVEL|(($LOG_LLCOMPLETE & 7)<<$_LLCOMPLETE_SHIFT))) LEVEL=$(($LEVEL|(($LOG_HLQUEUE & 7)<<$_HLQUEUE_SHIFT))) LEVEL=$(($LEVEL|(($LOG_HLCOMPLETE & 7)<<$_HLCOMPLETE_SHIFT))) LEVEL=$(($LEVEL|(($LOG_IOCTL & 7)<<$_IOCTL_SHIFT))) } check_cmdline $* if [ $SET = "1" ] then create_logging_level set_logging_level show_logging_level elif [ $GET = "1" ] then get_logging_level show_logging_level elif [ $CREATE = "1" ] then create_logging_level show_logging_level else invalid_cmdline missing option \'-g\', \'-s\' or \'-c\' fi