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-rwxr-xr-xscripts/scsi_logging_level268
1 files changed, 268 insertions, 0 deletions
diff --git a/scripts/scsi_logging_level b/scripts/scsi_logging_level
new file mode 100755
index 00000000..2fba2b7f
--- /dev/null
+++ b/scripts/scsi_logging_level
@@ -0,0 +1,268 @@
+#! /bin/bash
+###############################################################################
+# Conveniently create and set scsi logging level, show SCSI_LOG fields in human
+# readable form.
+#
+# (C) Copyright IBM Corp. 2006
+#
+# Modified by D. Gilbert to replace the use of sysctl [20080218]
+# Lat change: D. Gilbert 20150219
+###############################################################################
+
+
+REVISION="1.0"
+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
+
+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
+%S390_TOOLS_VERSION% ($SCRIPTNAME $REVISION)
+(C) Copyright IBM Corp. 2006
+EOF
+}
+
+# print usage and help
+printhelp()
+{
+ cat <<EOF
+Usage: $SCRIPTNAME [OPTIONS]
+
+Create, get or set scsi logging level.
+
+Options:
+
+ -h, --help print this help
+ -v, --version print version information
+ -s, --set create and set logging level as specified on
+ command line
+ -g, --get get current logging level and display it
+ -c, --create create logging level as specified on command line
+ -a, --all specify value for all SCSI_LOG fields
+ -E, --error specify SCSI_LOG_ERROR
+ -T, --timeout specify SCSI_LOG_TIMEOUT
+ -S, --scan specify SCSI_LOG_SCAN
+ -M, --midlevel specify SCSI_LOG_MLQUEUE and SCSI_LOG_MLCOMPLETE
+ --mlqueue specify SCSI_LOG_MLQUEUE
+ --mlcomplete specify SCSI_LOG_MLCOMPLETE
+ -L, --lowlevel specify SCSI_LOG_LLQUEUE and SCSI_LOG_LLCOMPLETE
+ --llqueue specify SCSI_LOG_LLQUEUE
+ --llcomplete specify SCSI_LOG_LLCOMPLETE
+ -H, --highlevel specify SCSI_LOG_HLQUEUE and SCSI_LOG_HLCOMPLETE
+ --hlqueue specify SCSI_LOG_HLQUEUE
+ --hlcomplete specify SCSI_LOG_HLCOMPLETE
+ -I, --ioctl specify SCSI_LOG_IOCTL
+
+Exactly one of the options "-c", "-g" and "-s" has to be specified.
+Valid values for SCSI_LOG fields are integers from 0 to 7.
+
+Note: Several SCSI_LOG fields can be specified using several options.
+When multiple options specify same SCSI_LOG field the most specific
+option has precedence.
+
+Example: "scsi_logging_level --hlqueue 3 --highlevel 2 --all 1 -s" sets
+SCSI_LOG_HLQUEUE=3, SCSI_LOG_HLCOMPLETE=2 and assigns all other SCSI_LOG
+fields the value 1.
+EOF
+}
+
+check_level()
+{
+ num=$(($1))
+ if [ $num != "$1" ] ; then
+ invalid_cmdline "log level '$1' not a number"
+ elif [ $num -lt 0 ] || [ $num -gt 7 ] ; then
+ invalid_cmdline "log level '$1' out of range, expect '0' to '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)
+ LEVEL=$(cat /proc/sys/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 "/proc/sys/dev/scsi/logging_level = $LEVEL"
+
+ LOG_ERROR=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_TIMEOUT=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_SCAN=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_MLQUEUE=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_MLCOMPLETE=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_LLQUEUE=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_LLCOMPLETE=$((LEVEL & 7)); LEVEL=$((LEVEL>>3))
+ LOG_HLQUEUE=$((LEVEL & 7)); LEVEL=$((LEVEL>>3));
+ LOG_HLCOMPLETE=$((LEVEL & 7)); LEVEL=$((LEVEL>>3));
+ LOG_IOCTL=$((LEVEL & 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
+ echo $LEVEL > /proc/sys/dev/scsi/logging_level
+ if [ $? != 0 ]
+ then
+ echo "$SCRIPTNAME: could not write scsi logging level $LEVEL"
+ echo " kernel does not have SCSI_LOGGING support or needs superuser"
+ exit 1
+ fi
+}
+create_logging_level()
+{
+ LEVEL=$((LOG_IOCTL & 7)); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_HLCOMPLETE & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_HLQUEUE & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_LLCOMPLETE & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_LLQUEUE & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_MLCOMPLETE & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_MLQUEUE & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_SCAN & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_TIMEOUT & 7))); LEVEL=$((LEVEL<<3))
+ LEVEL=$((LEVEL|(LOG_ERROR & 7)))
+}
+
+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
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