On Wed, 2015-10-07 at 05:39 +0000, Junichi Nomura wrote:
> This is a set of scripts for kernel-side dm-multipath testing.
> Current
> set of scripts are stress testing of extreme situation and its
> coverage
> is limited. But recently found dm-mpath regressions should be
> detectable
> with this. I hope this helps people working on dm-multipath related
> code
> as a regression test set.
>
> Though this is created as a patch for linux kernel source, it's just
> for
> convenience of kernel developers (I don't have a place to host this
> kind
> of scripts). If there are better place to contribute this, please let
> me know.
Have you considered placing it under tools/testing/selftests/? I think
people are looking for testing there instead of Documentation.
Thanks,
Johannes
>
> Please check README for how-to-run and possible improvements you
> could
> contribute in future.
>
> ---
> Documentation/device-mapper/mptest/COPYING | 345
> +++++++++++++++++++++
> Documentation/device-mapper/mptest/README | 61 ++++
> .../device-mapper/mptest/lib/backend_generic | 28 ++
> .../device-mapper/mptest/lib/backend_scsidebug | 43 +++
> .../device-mapper/mptest/lib/backend_tcmloop | 51 +++
> .../device-mapper/mptest/lib/failpath_dm_message | 43 +++
> .../device-mapper/mptest/lib/failpath_sdev_delete | 51 +++
> .../device-mapper/mptest/lib/failpath_sdev_offline | 46 +++
> .../device-mapper/mptest/lib/fio_validate | 41 +++
> .../device-mapper/mptest/lib/mpath_generic | 119 +++++++
> .../device-mapper/mptest/lib/switchpg_dm_message | 37 +++
> Documentation/device-mapper/mptest/runtest | 32 ++
> .../device-mapper/mptest/tests/test_00_no_failure | 30 ++
> .../mptest/tests/test_01_sdev_offline | 33 ++
> .../device-mapper/mptest/tests/test_02_sdev_delete | 33 ++
> .../device-mapper/mptest/tests/test_03_dm_failpath | 33 ++
> .../device-mapper/mptest/tests/test_04_dm_switchpg | 33 ++
> 17 files changed, 1059 insertions(+)
> create mode 100644 Documentation/device-mapper/mptest/COPYING
> create mode 100644 Documentation/device-mapper/mptest/README
> create mode 100755 Documentation/device
> -mapper/mptest/lib/backend_generic
> create mode 100755 Documentation/device
> -mapper/mptest/lib/backend_scsidebug
> create mode 100755 Documentation/device
> -mapper/mptest/lib/backend_tcmloop
> create mode 100755 Documentation/device
> -mapper/mptest/lib/failpath_dm_message
> create mode 100755 Documentation/device
> -mapper/mptest/lib/failpath_sdev_delete
> create mode 100755 Documentation/device
> -mapper/mptest/lib/failpath_sdev_offline
> create mode 100755 Documentation/device
> -mapper/mptest/lib/fio_validate
> create mode 100755 Documentation/device
> -mapper/mptest/lib/mpath_generic
> create mode 100755 Documentation/device
> -mapper/mptest/lib/switchpg_dm_message
> create mode 100755 Documentation/device-mapper/mptest/runtest
> create mode 100755 Documentation/device
> -mapper/mptest/tests/test_00_no_failure
> create mode 100755 Documentation/device
> -mapper/mptest/tests/test_01_sdev_offline
> create mode 100755 Documentation/device
> -mapper/mptest/tests/test_02_sdev_delete
> create mode 100755 Documentation/device
> -mapper/mptest/tests/test_03_dm_failpath
> create mode 100755 Documentation/device
> -mapper/mptest/tests/test_04_dm_switchpg
>
> diff --git a/Documentation/device-mapper/mptest/COPYING
> b/Documentation/device-mapper/mptest/COPYING
> new file mode 100644
> index 0000000..1114411
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/COPYING
> @@ -0,0 +1,345 @@
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> diff --git a/Documentation/device-mapper/mptest/README
> b/Documentation/device-mapper/mptest/README
> new file mode 100644
> index 0000000..b2de27c
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/README
> @@ -0,0 +1,61 @@
> +Test scripts for dm-multipath
> +=============================
> +
> +How to run
> +----------
> + # cd mptest
> + # ./runtest
> + ..
> + (verbose outputs)
> + ..
> + ** summary **
> + PASSED: test_00_no_failure test_02_sdev_delete
> test_03_dm_failpath
> + FAILED: test_01_sdev_offline
> +
> + Or './runtest tests/test_01_sdev_offline', for example, to run a
> + specific test.
> +
> +
> +Required tools
> +--------------
> + - dmsetup
> + - fio
> + - targetcli (if MULTIPATH_BACKEND_MODULE=tcmloop)
> + - scsi_debug.ko (if MULTIPATH_BACKEND_MODULE=scsidebug)
> +
> +
> +Improvements needed
> +-------------------
> + - More realistic ALUA setups
> + * Multiple TPGs
> + * Optimized/Non-optimized groups
> + * Prefered bit
> + - More realistic transports and failure modes
> + * iSCSI
> + * FC
> + - More varieties of I/Os
> + * blk pcs
> + - Validation tests of dm table/status
> + * whether dm-mpath.ko can handle various dm table pattern
> correctly
> + * whether dm-mpath.ko outputs dm status correctly
> + - Better udev avoidance
> + * a lot of uevents are generated during the test, that
> unintendedly
> + ends up with stress testing of udev subsystem
> + * dmsetup might fail and/or stall if the avoidance is not done
> + correctly
> + - Integration test with udev and multipath-tools
> + * for realistic testing, tests involving udev and multipathd
> are
> + also necessary
> +
> +Issues
> +------
> + - When run from non-interactive mode, targetcli might emit python
> + exception when called:
> + Traceback (most recent call last):
> + File "/usr/bin/targetcli", line 121, in <module>
> + main()
> + File "/usr/bin/targetcli", line 111, in main
> + shell.run_interactive()
> + File "/usr/lib/python2.7/site
> -packages/configshell_fb/shell.py", line 899, in run_interactive
> + readline.set_completer(old_completer)
> + NameError: global name 'readline' is not defined
> diff --git a/Documentation/device-mapper/mptest/lib/backend_generic
> b/Documentation/device-mapper/mptest/lib/backend_generic
> new file mode 100755
> index 0000000..ac7843d
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/backend_generic
> @@ -0,0 +1,28 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +if [ -z "${MULTIPATH_BACKEND_MODULE}" ]; then
> + echo "MULTIPATH_BACKEND_MODULE should be defined"
> + exit 1
> +fi
> +if [ ! -e "$LIB/backend_${MULTIPATH_BACKEND_MODULE}" ]; then
> + echo "backend_${MULTIPATH_BACKEND_MODULE} does not exist"
> + exit 1
> +fi
> +
> +. $LIB/backend_${MULTIPATH_BACKEND_MODULE}
> diff --git a/Documentation/device-mapper/mptest/lib/backend_scsidebug
> b/Documentation/device-mapper/mptest/lib/backend_scsidebug
> new file mode 100755
> index 0000000..ed41d21
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/backend_scsidebug
> @@ -0,0 +1,43 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +backend_all_paths ()
> +{
> + grep -l scsi_debug /sys/block/sd*/device/model | \
> + awk -F/ '{print $4}'
> +}
> +
> +backend_all_hosts ()
> +{
> + grep -l scsi_debug /sys/class/scsi_host/host*/proc_name | \
> + awk -F/ '{print $5}'
> +}
> +
> +backend_create_device ()
> +{
> + modprobe -r scsi_debug
> + modprobe scsi_debug vpd_use_hostno=0 \
> + dev_size_mb=1024 add_host=4 max_luns=1 \
> + delay=1
> +}
> +
> +backend_delete_device ()
> +{
> + rmmod scsi_debug
> +}
> +
> diff --git a/Documentation/device-mapper/mptest/lib/backend_tcmloop
> b/Documentation/device-mapper/mptest/lib/backend_tcmloop
> new file mode 100755
> index 0000000..769ee18
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/backend_tcmloop
> @@ -0,0 +1,51 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +backend_all_paths ()
> +{
> + grep -l LIO-ORG /sys/block/sd*/device/vendor | \
> + awk -F/ '{print $4}'
> +}
> +
> +backend_all_hosts ()
> +{
> + grep -l tcm_loopback /sys/class/scsi_host/host*/proc_name |
> \
> + awk -F/ '{print $5}'
> +}
> +
> +backend_create_device ()
> +{
> + targetcli <<EOF || exit 1
> +clearconfig confirm=True
> +/backstores/ramdisk create rd 1G
> +/loopback create naa.5001401111111111
> +/loopback create naa.5001402222222222
> +/loopback create naa.5001403333333333
> +/loopback create naa.5001404444444444
> +/loopback/naa.5001401111111111/luns create /backstores/ramdisk/rd
> +/loopback/naa.5001402222222222/luns create /backstores/ramdisk/rd
> +/loopback/naa.5001403333333333/luns create /backstores/ramdisk/rd
> +/loopback/naa.5001404444444444/luns create /backstores/ramdisk/rd
> +EOF
> +}
> +
> +backend_delete_device ()
> +{
> + echo 'clearconfig confirm=True' | targetcli
> +}
> +
> diff --git a/Documentation/device
> -mapper/mptest/lib/failpath_dm_message b/Documentation/device
> -mapper/mptest/lib/failpath_dm_message
> new file mode 100755
> index 0000000..1a3bcf8
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/failpath_dm_message
> @@ -0,0 +1,43 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +stopfile=stop.failpath_dm_message
> +
> +start_failpath_dm_message () {
> + [ -z "$MPNAME" ] && exit 1
> + local d
> + local m
> + local devs=$(mpath_all_paths)
> + local majs=$(for d in $devs; do cat /sys/block/$d/dev; done)
> +
> + rm -f $stopfile
> + while [ ! -f $stopfile ]; do
> + for m in $majs; do
> + dmsetup message $MPNAME 0 "fail_path $m"
> + done
> + for m in $majs; do
> + dmsetup message $MPNAME 0 "reinstate_path
> $m"
> + done
> + done &
> +}
> +
> +stop_failpath_dm_message ()
> +{
> + touch $stopfile
> + wait
> +}
> diff --git a/Documentation/device
> -mapper/mptest/lib/failpath_sdev_delete b/Documentation/device
> -mapper/mptest/lib/failpath_sdev_delete
> new file mode 100755
> index 0000000..117378b
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/failpath_sdev_delete
> @@ -0,0 +1,51 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +stopfile=stop.failpath_sdev_delete
> +
> +_reload_mpath_table () {
> + local table="$(mpath_table)"
> + echo "$table" | dmsetup load $MPNAME && \
> + dmsetup suspend --nolockfs --noflush $MPNAME && \
> + dmsetup resume $MPNAME
> +}
> +
> +start_failpath_sdev_delete () {
> + [ -z "$MPNAME" ] && exit 1
> + local d
> + local h
> + rm -f $stopfile
> + while [ ! -f $stopfile ]; do
> + for d in $(mpath_all_paths); do
> + echo 1 > /sys/block/${d}/device/delete
> + done
> + #sleep 1
> + for h in $(mpath_all_hosts); do
> + echo '- - -' >
> /sys/class/scsi_host/${h}/scan
> + done
> + #sleep 1
> + _reload_mpath_table
> + done &
> +}
> +
> +stop_failpath_sdev_delete ()
> +{
> + touch $stopfile
> + wait
> + sleep 3
> +}
> diff --git a/Documentation/device
> -mapper/mptest/lib/failpath_sdev_offline b/Documentation/device
> -mapper/mptest/lib/failpath_sdev_offline
> new file mode 100755
> index 0000000..1a185b2
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/failpath_sdev_offline
> @@ -0,0 +1,46 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +stopfile=stop.failpath_sdev_offline
> +
> +start_failpath_sdev_offline () {
> + [ -z "$MPNAME" ] && exit 1
> + local d
> + local m
> + local devs=$(mpath_all_paths)
> + local majs=$(for d in $devs; do cat /sys/block/$d/dev; done)
> +
> + rm -f $stopfile
> + while [ ! -f $stopfile ]; do
> + for d in $devs; do
> + echo offline > /sys/block/${d}/device/state
> + done
> + for d in $devs; do
> + echo running > /sys/block/${d}/device/state
> + done
> + for m in $majs; do
> + dmsetup message $MPNAME 0 "reinstate_path
> $m"
> + done
> + done &
> +}
> +
> +stop_failpath_sdev_offline ()
> +{
> + touch $stopfile
> + wait
> +}
> diff --git a/Documentation/device-mapper/mptest/lib/fio_validate
> b/Documentation/device-mapper/mptest/lib/fio_validate
> new file mode 100755
> index 0000000..9a79034
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/fio_validate
> @@ -0,0 +1,41 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +if [ -z "${FIO_VALIDATE_OPT}" ]; then
> + FIO_VALIDATE_OPT="--time_based --runtime=300 --size=100G"
> +fi
> +
> +run_fio_validate ()
> +{
> + if [ -z "$MPNAME" ] || [ ! -b "/dev/mapper/$MPNAME" ]; then
> + echo "FAILED TO START"
> + return 1
> + fi
> +
> + fio --bs=512k --rw=randwrite --direct=1 --iodepth=2 -
> -ioengine=libaio \
> + --filename=/dev/mapper/$MPNAME ${FIO_VALIDATE_OPT} \
> + --do_verify=1 --verify=meta --verify_dump=1 -
> -verify_fatal=1 \
> + --name=test1
> + if [ $? -ne 0 ]; then
> + echo "FAILED"
> + return 1
> + else
> + echo "SUCCESS"
> + return 0
> + fi
> +}
> diff --git a/Documentation/device-mapper/mptest/lib/mpath_generic
> b/Documentation/device-mapper/mptest/lib/mpath_generic
> new file mode 100755
> index 0000000..c67fd5d
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/mpath_generic
> @@ -0,0 +1,119 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +if [ -z "$MPNAME" ]; then
> + echo "MPNAME should be defined"
> + exit 1
> +fi
> +if dmsetup info $MPNAME >&/dev/null; then
> + echo "dm device $MPNAME already exists"
> + exit 1
> +fi
> +
> +mpath_all_paths ()
> +{
> + backend_all_paths
> +}
> +
> +mpath_all_hosts ()
> +{
> + backend_all_hosts
> +}
> +
> +mpath_table ()
> +{
> + # dm-mpath parameters
> + local _feature="2 queue_if_no_path
> retain_attached_hw_handler"
> + local _hwhandler="0"
> + local _initialpg="1"
> + local _selector="queue-length 0"
> + #
> + local str=
> + local _pgs=0
> + #
> + local _paths=0
> + local pgstr=
> + # group by 2-paths
> + for d in $(mpath_all_paths); do
> + local sz=$(blockdev --getsz /dev/$d)
> + if [ -z "$sz" ] || [ "$sz" = "0" ]; then
> + continue
> + fi
> + size=$sz
> + pgstr="$pgstr /dev/${d} 1"
> + _paths=$((_paths + 1))
> + if [ ${_paths} -eq 2 ]; then
> + str="$str ${_selector} ${_paths} 1 $pgstr"
> + pgstr=
> + _paths=0
> + _pgs=$((_pgs + 1))
> + fi
> + done
> + if [ ${_paths} -gt 0 ]; then
> + str="$str ${_selector} ${_paths} 1 $pgstr"
> + pgstr=
> + _paths=0
> + _pgs=$((_pgs + 1))
> + fi
> + if [ ${_pgs} -eq 0 ]; then
> + _initialpg=0
> + fi
> +
> + echo "0 $size multipath ${_feature} ${_hwhandler} ${_pgs}
> ${_initialpg} ${str}"
> +}
> +
> +create_mpath ()
> +{
> + # avoid interference with multipathd
> + service multipathd stop
> +
> + #
> + # Create multipath backend
> + #
> + backend_create_device
> + # ...wait for sdev become visible
> + sleep 1
> +
> + #
> + # Create DM device
> + #
> + local table="$(mpath_table)"
> + echo "Initial table: $table"
> + dmsetup create $MPNAME --table "$table" || exit 1
> + # ...wait for mpdev become visible and udev activities
> settle
> + sleep 3
> +}
> +
> +delete_mpath ()
> +{
> + # ...wait for any processes touching mpdev to finish
> + sleep 3
> +
> + # Remove mpath device
> + size=$(dmsetup status $MPNAME | awk '{print $2}')
> + echo "0 $size error" | dmsetup load $MPNAME && \
> + dmsetup suspend --nolockfs --noflush $MPNAME && \
> + dmsetup resume $MPNAME
> + #udevadm settle
> + dmsetup remove $MPNAME
> +
> + # ...wait for any processes touching sdev to finish
> + sleep 1
> + backend_delete_device
> +}
> +
> diff --git a/Documentation/device
> -mapper/mptest/lib/switchpg_dm_message b/Documentation/device
> -mapper/mptest/lib/switchpg_dm_message
> new file mode 100755
> index 0000000..e53808a
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/lib/switchpg_dm_message
> @@ -0,0 +1,37 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +stopfile=stop.switchpg_dm_message
> +
> +start_switchpg_dm_message () {
> + [ -z "$MPNAME" ] && exit 1
> +
> + rm -f $stopfile
> + while [ ! -f $stopfile ]; do
> + dmsetup message $MPNAME 0 "disable_group 1"
> + sleep 1
> + dmsetup message $MPNAME 0 "enable_group 1"
> + sleep 1
> + done &
> +}
> +
> +stop_switchpg_dm_message ()
> +{
> + touch $stopfile
> + wait
> +}
> diff --git a/Documentation/device-mapper/mptest/runtest
> b/Documentation/device-mapper/mptest/runtest
> new file mode 100755
> index 0000000..114184a
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/runtest
> @@ -0,0 +1,32 @@
> +#!/bin/bash
> +
> +export MPNAME="mp"
> +export LIB=./lib
> +
> +# Select backend device type
> +export MULTIPATH_BACKEND_MODULE="tcmloop"
> +#export MULTIPATH_BACKEND_MODULE="scsidebug"
> +
> +# Uncomment this if you want shorter test
> +#export FIO_VALIDATE_OPT="--time_based --runtime=30 --size=10G"
> +
> +TESTS="./tests/*"
> +if [ "$*" ]; then
> + TESTS=$*
> +fi
> +
> +PASSED=
> +FAILED=
> +for t in $TESTS; do
> + echo "** Running: $t"
> + $t
> + if [ $? -eq 0 ]; then
> + PASSED="$PASSED $(basename $t)"
> + else
> + FAILED="$FAILED $(basename $t)"
> + fi
> +done
> +
> +echo "** summary **"
> +echo "PASSED: $PASSED"
> +echo "FAILED: $FAILED"
> diff --git a/Documentation/device
> -mapper/mptest/tests/test_00_no_failure b/Documentation/device
> -mapper/mptest/tests/test_00_no_failure
> new file mode 100755
> index 0000000..3324bf6
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/tests/test_00_no_failure
> @@ -0,0 +1,30 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +. ${LIB}/backend_generic
> +. ${LIB}/mpath_generic
> +. ${LIB}/fio_validate
> +
> +create_mpath
> +
> +run_fio_validate
> +ret=$?
> +
> +delete_mpath
> +
> +exit $ret
> diff --git a/Documentation/device
> -mapper/mptest/tests/test_01_sdev_offline b/Documentation/device
> -mapper/mptest/tests/test_01_sdev_offline
> new file mode 100755
> index 0000000..33291e2
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/tests/test_01_sdev_offline
> @@ -0,0 +1,33 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +. ${LIB}/backend_generic
> +. ${LIB}/mpath_generic
> +. ${LIB}/failpath_sdev_offline
> +. ${LIB}/fio_validate
> +
> +create_mpath
> +start_failpath_sdev_offline
> +
> +run_fio_validate
> +ret=$?
> +
> +stop_failpath_sdev_offline
> +delete_mpath
> +
> +exit $ret
> diff --git a/Documentation/device
> -mapper/mptest/tests/test_02_sdev_delete b/Documentation/device
> -mapper/mptest/tests/test_02_sdev_delete
> new file mode 100755
> index 0000000..44d0ff8
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/tests/test_02_sdev_delete
> @@ -0,0 +1,33 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +. ${LIB}/backend_generic
> +. ${LIB}/mpath_generic
> +. ${LIB}/failpath_sdev_delete
> +. ${LIB}/fio_validate
> +
> +create_mpath
> +start_failpath_sdev_delete
> +
> +run_fio_validate
> +ret=$?
> +
> +stop_failpath_sdev_delete
> +delete_mpath
> +
> +exit $ret
> diff --git a/Documentation/device
> -mapper/mptest/tests/test_03_dm_failpath b/Documentation/device
> -mapper/mptest/tests/test_03_dm_failpath
> new file mode 100755
> index 0000000..f8938fb
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/tests/test_03_dm_failpath
> @@ -0,0 +1,33 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +. ${LIB}/backend_generic
> +. ${LIB}/mpath_generic
> +. ${LIB}/failpath_dm_message
> +. ${LIB}/fio_validate
> +
> +create_mpath
> +start_failpath_dm_message
> +
> +run_fio_validate
> +ret=$?
> +
> +stop_failpath_dm_message
> +delete_mpath
> +
> +exit $ret
> diff --git a/Documentation/device
> -mapper/mptest/tests/test_04_dm_switchpg b/Documentation/device
> -mapper/mptest/tests/test_04_dm_switchpg
> new file mode 100755
> index 0000000..4086e28
> --- /dev/null
> +++ b/Documentation/device-mapper/mptest/tests/test_04_dm_switchpg
> @@ -0,0 +1,33 @@
> +#!/bin/bash
> +#
> +# Copyright (C) 2015 NEC Corporation. All Rights Reserved.
> +#
> +# 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.
> +#
> +# This program is distributed in the hope that it would 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 the Free Software
> Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +. ${LIB}/backend_generic
> +. ${LIB}/mpath_generic
> +. ${LIB}/switchpg_dm_message
> +. ${LIB}/fio_validate
> +
> +create_mpath
> +start_switchpg_dm_message
> +
> +run_fio_validate
> +ret=$?
> +
> +stop_switchpg_dm_message
> +delete_mpath
> +
> +exit $ret
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