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lszfcp: new command line option to show module parameters

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I often use "systool -v -m zfcp" but that's a bit longish to type
and contains more output than just the parameters I'm interested in.
"tail /sys/module/zfcp/parameters/*" is also not so nice.
"lszfcp -Z" makes it very easy and can be combined with the other
existing output options of lszfcp.

Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Steffen Maier
2019-03-01 16:42:25 +01:00
committed by Jan Höppner
parent a20cabccc4
commit 9c56255a70
2 changed files with 35 additions and 7 deletions
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27
zconf/lszfcp
View File

@@ -14,6 +14,7 @@ FC_CLASS=false
# Command line parameters
VERBOSITY=0
SHOW_MODPARMS=0
SHOW_HOSTS=0
SHOW_PORTS=0
SHOW_DEVICES=0
@@ -109,6 +110,7 @@ OPTIONS:
-H, --hosts show host information (default)
-P, --ports show remote port information
-D, --devices show SCSI device information
-Z, --modparms show zfcp (module) parameters
-b, --busid=BUSID select specific busid
-p, --wwpn=WWPN select specific port name
-l, --lun=LUN select specific LUN
@@ -159,6 +161,22 @@ show_attributes()
}
show_modparms()
{
local modparmdir=$SYSFS/module/zfcp/parameters
[ -d "$modparmdir" ] || return
if [ $VERBOSITY -ne 0 ]; then
echo "$modparmdir"
fi
echo 'Module = "zfcp"'
show_attributes "$modparmdir"
echo
}
show_hosts()
{
HOST_LIST=`ls -dX $SYSFS/devices/css0/[0-9]*/[0-9]*/host[0-9]* \
@@ -509,8 +527,8 @@ show_devices()
##############################################################################
ARGS=`getopt --options ahvHPDVb:p:l:s:em --longoptions \
attributes,help,version,hosts,ports,devices,verbose,busid:,wwpn:,lun:,sysfs:,extended,moreattrs \
ARGS=`getopt --options ahvHPDVb:p:l:s:emZ --longoptions \
attributes,help,version,hosts,ports,devices,verbose,busid:,wwpn:,lun:,sysfs:,extended,moreattrs,modparms \
-n "$SCRIPTNAME" -- "$@"`
if [ $? -ne 0 ]; then
@@ -535,6 +553,7 @@ for ARG; do
-D|--devices) SHOW_DEVICES=1; shift 1;;
-P|--ports) SHOW_PORTS=1; shift 1;;
-V|--verbose) VERBOSITY=1; shift 1;;
-Z|--modparms) SHOW_MODPARMS=1; shift 1;;
-s|--sysfs) SYSFS=$2; shift 2;;
--) shift; break;;
esac
@@ -546,6 +565,10 @@ check_fc_class
check_fcp_devs
default=1
if [ $SHOW_MODPARMS -eq 1 ]; then
default=0; show_modparms
fi
if [ $SHOW_HOSTS -eq 1 ]; then
default=0; show_hosts
elif [ $SHOW_PORTS -eq 0 -a $SHOW_DEVICES -eq 0 -a -n "$PAR_BUSID" ]; then

15
zconf/lszfcp.8
View File

@@ -8,7 +8,7 @@ lszfcp \- list information about zfcp adapters, ports, and units
.SH SYNOPSIS
.B lszfcp
.RB [ \-hvVaHDPem ]
.RB [ \-hvVaZHDPem ]
.RB [ \-b
.IR busid ]
.RB [ \-l
@@ -28,8 +28,10 @@ scsi_devices.
The default is to list busids of all zfcp adapters and their corresponding
SCSI host names.
There are three output variants. Default (without options "-a" or
"-V") is one line for each object. For adapters the busid and their
There are four output variants. Default (without options "-a" or
"-V" or "-Z") is one line for each object.
For the zfcp device driver (module), its parameters are listed.
For adapters the busid and their
corresponding SCSI host names are listed. For ports the pair
"busid"/"wwpn" and their corresponding FC-remote-port names are listed.
For units the triple "busid"/"wwpn"/"lun" and their corresponding SCSI
@@ -75,6 +77,9 @@ If specified twice,
show additional attributes of the specified SCSI device objects:
scsi_disk, block, block_integrity, block_queue, block_queue_iosched.
.TP
.B -Z, --modparms
List zfcp (module) parameters with a scope of the device driver.
.TP
.B -D, --devices
List zfcp units and SCSI devices.
.TP
@@ -121,7 +126,7 @@ Display version info and exit.
.PP
Options "-b", "-p" or "-l" are of restricting nature. They limit the output
to those adapters, ports or units that match the specified busid, wwpn and lun.
If none of the options "-H", "-P" and "-D" are specified, "-b" implies "-H",
If none of the options "-Z", "-H", "-P" and "-D" are specified, "-b" implies "-H",
"-p" implies "-P" and "-l" implies "-D".
.SH EXAMPLES
@@ -140,7 +145,7 @@ Show all adapters that match the given busid, all ports that match the given
busid and wwpnn and show all units that match the given busid, wwpn and lun.
.IP "lszfcp -b 0.0.0815 -p 0x5005123456789000 -l 0x0000000000000000 -H -P -D"
Generates same output as previous example.
.IP "lszfcp -HPDVeamm"
.IP "lszfcp -ZHPDVeamm"
Generates the fullest output in the extended format.
.SH "SEE ALSO"
.BR lscss (8)