diff options
Diffstat (limited to 'scripts/scsi_logging_level')
| -rwxr-xr-x | scripts/scsi_logging_level | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/scripts/scsi_logging_level b/scripts/scsi_logging_level new file mode 100755 index 00000000..ecbc8277 --- /dev/null +++ b/scripts/scsi_logging_level @@ -0,0 +1,295 @@ +#! /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 + |