Linux-IO Target is very good framework for testing block backend. It is more flexible than scsi_debug.
http://linux-iscsi.org/wiki/LIO Signed-off-by: Dmitry Monakhov <dmonak...@openvz.org> --- common/config | 2 + common/liotarget | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 113 insertions(+) create mode 100644 common/liotarget diff --git a/common/config b/common/config index 59041a3..cfe7913 100644 --- a/common/config +++ b/common/config @@ -212,6 +212,8 @@ export XZ_PROG="`set_prog_path xz`" export FLOCK_PROG="`set_prog_path flock`" export LDD_PROG="`set_prog_path ldd`" export TIMEOUT_PROG="`set_prog_path timeout`" +export TARGETCLI_PROG="`set_prog_path targetcli`" +export TARGETCTL_PROG="`set_prog_path targetctl`" # use 'udevadm settle' or 'udevsettle' to wait for lv to be settled. # newer systems have udevadm command but older systems like RHEL5 don't. diff --git a/common/liotarget b/common/liotarget new file mode 100644 index 0000000..f821692 --- /dev/null +++ b/common/liotarget @@ -0,0 +1,111 @@ +#!/bin/bash +# +# Copyright (c) 2017 Virtuozzo Inc +# All Rights Reserved. +# +# Written by Dmitry Monakhov <dmonak...@openvz.org> +# +# 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 +# +# +# Functions for Linux-IO Target manipulation +# + +_require_liotarget() +{ + which $TARGETCLI_PROG >>$seqres.full 2>&1 || \ + _notrun "this test requires 'targetcli' tool" + which $TARGETCLI_PROG >>$seqres.full 2>&1 || \ + _notrun "this test requires 'targetcli' tool" + + $TARGETCLI_PROG ls /backstores/ramdisk >>$seqres.full 2>&1 ||\ + _notrun "kernel compiled w/o CONFIG_TARGET_CORE" + $TARGETCLI_PROG ls /backstores/fileio >>$seqres.full 2>&1 ||\ + _notrun "kernel compiled w/o CONFIG_TCM_FILEIO" + $TARGETCLI_PROG ls /loopback >>$seqres.full 2>&1 ||\ + _notrun "kernel compiled w/o CONFIG_LOOPBACK_TARGET" +} + +_liotgt_create_fileio() +{ + local name=$1 + local img=$2 + local sz=$3 + + $TARGETCLI_PROG /backstores/fileio create \ + name=$name file_or_dev=$img size=$sz >>$seqres.full ||\ + _fail "Can not create /backstores/fileio/$name" + + local cfg_path=`ls -d /sys/kernel/config/target/core/fileio_*/$name` + [ -d "$cfg_path" ] || _fail "Bad config path" + echo $cfg_path +} + +_liotgt_set_attribute() +{ + local path=$1 + local attr_name=$2 + local attr_val=$3 + + [ -f $path/attrib/$attr_name ] || _fail "Bad attribute $attr_name" + echo "echo $attr_val > $path/attrib/$attr_name " >>$seqres.full + echo $attr_val > $path/attrib/$attr_name +} + +_liotgt_create_loopback() +{ + local out=`$TARGETCLI_PROG /loopback/ create 2>&1` + [ $? -eq 0 ] || _fail "Can not create loopback target" + echo $out >>$seqres.full + + local naa=`echo $out | gawk '{ print $3 }'` + echo ${naa:0:20} >>$seqres.full + + echo ${naa:0:20} +} + +_liotgt_find_dev() +{ + local found="" + local name=$1 + local drives=`find /sys/devices -type f -name model` + for d in $drives;do + local dir=`dirname $d` + local vendor=`cat $dir/vendor` + local model=`cat $dir/model` + if [ "${vendor//[[:space:]]/}" == "LIO-ORG" ] && \ + [ "${model//[[:space:]]/}" == "$name" ]; then + found=/dev/$(ls $dir/block) + break + fi + done + [ -z "$found" ] && _fail "Can not find device with backend $name" + echo "$found" +} + +_liotgt_attach_target() +{ + local path=$1 + local name=`basename $path` + local naa=$(_liotgt_create_loopback) + + $TARGETCLI_PROG /loopback/$naa/luns create $path >>$seqres.full 2>&1 ||\ + _fail "Can not attach $path to tcm_loop" + _liotgt_find_dev $name +} + +_liotgt_cleanup() +{ + $TARGETCTL_PROG clear +} -- 2.9.3
