[lkml dropped] [old thread] On Fri, 18 Aug 2006 11:11:39 +0200 Andreas Herrmann wrote: > On 18.08.2006 00:33 Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx> wrote: > > Andreas Herrmann wrote: > > > Anyone interested in a script to conveniently interpret or change the > > > SCSI logging level? Such a script (scsi_logging_level) exists in the > > > s390-tools package (version 1.5.3). > > > That would be very welcome. Hi Doug, Did you give any thought to adding this script (or a current version of it, from http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html) to sg3-utils? or would you give it some thought? I think that's a better solution than adding to the kernel tree (and better than getting it from developerworks :). Thanks. > See script below. To set SCSI_LOG_SCAN as discussed in this thread you > can use: > > # scsi_logging_level -s --scan 7 > New scsi logging level: > dev.scsi.logging_level = 448 > SCSI_LOG_ERROR=0 > SCSI_LOG_TIMEOUT=0 > SCSI_LOG_SCAN=7 > SCSI_LOG_MLQUEUE=0 > SCSI_LOG_MLCOMPLETE=0 > SCSI_LOG_LLQUEUE=0 > SCSI_LOG_LLCOMPLETE=0 > SCSI_LOG_HLQUEUE=0 > SCSI_LOG_HLCOMPLETE=0 > SCSI_LOG_IOCTL=0 > > > > If others show interest for this script, maybe a better place can be > > > found than s390-tools (because it is not really s390-specific). > > > It could be put into linux/Documentation/scsi/. People who are > > confronted with a debugging problem probably look into Documentation/. > > Also, scripts which demonstrate usage of certain kernel interfaces do > > count as valuable documentation. > > I am not sure whehter this script should be added to > Documentation/scsi. I think it would be better to just document the > SCSI logging feature at all in Documentation/scsi and put the script > somewhere else. > > Maybe Douglas Gilbert has a suggestion where such a script will best > fit in? He knows best which packages with scripts and utilities for > storage and SCSI are available. > > > Regards, > > Andreas > > -- > #! /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. > ############################################################################### > > > 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() > { > 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 > - --- ~Randy - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
