--- /dev/null
+#!/bin/bash
+# Test NVMe ns-descs command on NVMeOF with a file-backed ns.
+# Copyright (c) 2017-2018 Western Digital Corporation or its affiliates.
+#
+# 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; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will 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 to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+# Author: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
+#
+
+. tests/nvme/rc
+
+DESCRIPTION="test NVMe ns-descs command on NVMeOF file-backed ns"
+QUICK=1
+
+requires() {
+ _have_program nvme && _have_module nvme-loop && _have_module loop && \
+ _have_module nvmet && _have_configfs
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ modprobe nvmet
+ modprobe nvme-loop
+
+ local port
+ local nvmedev
+ local file_path="$TMPDIR/img"
+ local subsys_name="blktests-subsystem-1"
+
+ truncate -s 1G "${file_path}"
+
+ _create_nvmet_subsystem "${subsys_name}" "${file_path}" \
+ "91fdba0d-f87b-4c25-b80f-db7be1418b9e"
+ port="$(_create_nvmet_port "loop")"
+ _add_nvmet_subsys_to_port "${port}" "${subsys_name}"
+
+ nvme connect -t loop -n "${subsys_name}"
+
+ nvmedev="$(_find_nvme_loop_dev)"
+ cat "/sys/block/${nvmedev}n1/uuid"
+ cat "/sys/block/${nvmedev}n1/wwid"
+
+ nvme ns-descs "/dev/${nvmedev}" -n 1 > /dev/null 2>&1
+
+ rc=$?
+
+ nvme disconnect -n "${subsys_name}"
+
+ _remove_nvmet_subsystem_from_port "${port}" "${subsys_name}"
+ _remove_nvmet_subsystem "${subsys_name}"
+ _remove_nvmet_port "${port}"
+
+ rm -f "${file_path}"
+
+ modprobe -r nvme-loop
+ modprobe -r nvmet
+
+ if [ $rc -ne 0 ]; then
+ echo "Test Failed"
+ else
+ echo "Test complete"
+ fi
+}