| Message ID | 20151007053923.GA10749@xzibit.linux.bs1.fc.nec.co.jp (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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 @@ > + GNU GENERAL PUBLIC LICENSE > + Version 2, June 1991 > + > + Copyright (C) 1989, 1991 Free Software Foundation, Inc. > + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA > + Everyone is permitted to copy and distribute verbatim copies > + of this license document, but changing it is not allowed. > + > + Preamble > + > + The licenses for most software are designed to take away your > +freedom to share and change it. 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Of course, the commands you > use may > +be called something other than `show w' and `show c'; they could > even be > +mouse-clicks or menu items--whatever suits your program. > + > +You should also get your employer (if you work as a programmer) or > your > +school, if any, to sign a "copyright disclaimer" for the program, if > +necessary. Here is a sample; alter the names: > + > + Yoyodyne, Inc., hereby disclaims all copyright interest in the > program > + `Gnomovision' (which makes passes at compilers) written by James > Hacker. > + > + <signature of Ty Coon>, 1 April 1989 > + Ty Coon, President of Vice > + > +This General Public License does not permit incorporating your > program into > +proprietary programs. If your program is a subroutine library, you > may > +consider it more useful to permit linking proprietary applications > with the > +library. If this is what you want to do, use the GNU Library > General > +Public License instead of this License. > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 10/07/15 16:31, Johannes Thumshirn wrote: > 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. Yes, but I think (the current contents of) my scripts don't fit well for the purpose of 'tools/testing/selftests', which is a place for unit tests. My scripts are for long-run stress testing and may need parameter tuning depending on running environment. Thanks for the comment.
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. > > Please check README for how-to-run and possible improvements you > could > contribute in future. Can you please resend the patch so it can be picked up? I'd really like to have a in-tree test suite for dm-multipath. Thanks, Johannes -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri, Nov 13 2015 at 5:55am -0500, Johannes Thumshirn <jthumshirn@suse.de> wrote: > 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. > > > > Please check README for how-to-run and possible improvements you > > could > > contribute in future. > > Can you please resend the patch so it can be picked up? I'd really like > to have a in-tree test suite for dm-multipath. There is no need for a resend. I just overlooked it for the 4.4 merge window. But I'll review/test/merge for the 4.5 merge window. Mike -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, Oct 07 2015 at 1:39am -0400, Junichi Nomura <j-nomura@ce.jp.nec.com> 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. > > Please check README for how-to-run and possible improvements you could > contribute in future. I finally got around to trying these scripts. Thanks for making them available. But unfortunately I cannot get either the scsidebug or tcmloop mode to run against v4.5-rc4 For tcmloop, targetcli fails with: "Could not create ISCSIFabricModule in configFS." (fixed by enabling CONFIG_ISCSI_TARGET under TARGET_CORE) I'm seeing all tests fail due to fio verification failure. I'll need to inspect this further.. But the most problematic test is ./tests/test_03_dm_failpath -- it seems to actively break _any_ v4.5-rc kernel I try (with a never-ending flood of messages like "device-mapper: multipath: Failing path 8:192."); I haven't tried older kernels. What is the last kernel version that your scripts have worked on? Taking a step back: These scripts don't belong in Documentation/device-mapper/mptest/ (or anywhere in the kernel tree for that matter). I'd really prefer it if we could port your scripts over to the device-mapper-test-suite, see: https://github.com/jthornber/device-mapper-test-suite Mike -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. 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