[PATCH V2] blktests: add userspace IO test

Ming Lei
2019-03-05T01:50:34Z

Add one test to cover changes on block passthrough IO interface,
such as blk_rq_map_user(), blk_rq_map_user_iov(), blk_rq_unmap_user()
and blk_rq_map_kern().

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
tests/block/029 | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/block/029.out | 4 ++
2 files changed, 115 insertions(+)
create mode 100755 tests/block/029
create mode 100644 tests/block/029.out

diff --git a/tests/block/029 b/tests/block/029
new file mode 100755
index 000000000000..c7c674464285
--- /dev/null
+++ b/tests/block/029
@@ -0,0 +1,111 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2019 Ming Lei <ming.lei@redhat.com>
+#
+# Test userspace IO on NVMe loop device
+
+. tests/nvme/rc
+
+DESCRIPTION="test userspace IO via nvme-cli read/write interface"
+QUICK=1
+
+requires() {
+ _have_program nvme && _have_modules loop nvme-loop nvmet && \
+ _have_configfs
+}
+
+__test_user_io()
+{
+ local disk="$1"
+ local start=$2
+ local cnt=$3
+
+ local bs=$(blockdev --getss $disk)
+ local size=$(($cnt * $bs))
+
+ local img=`mktemp /tmp/blk_img_XXXXXX`
+ local img1=`mktemp /tmp/blk_img_XXXXXX`
+
+ dd if=/dev/urandom of=$img bs=$bs count=$cnt status=none
+
+ cnt=$(($cnt - 1))
+
+ nvme write --start-block=$start --block-count=$cnt --data-size=$size --data=$img $disk
+ [ $? -ne 0 ] && return -1
+ nvme read --start-block=$start --block-count=$cnt --data-size=$size --data=$img1 $disk
+ [ $? -ne 0 ] && return -1
+
+ diff -q -u $img $img1
+ res=$?
+
+ rm -f $img $img1
+ return $res
+}
+
+test_user_io()
+{
+ local dev="$1"
+
+ __test_user_io $dev 1 512 > "$FULL" 2>&1
+ [ -$? -ne 0 ] && echo "FAIL"
+
+ __test_user_io $dev 1 511 > "$FULL" 2>&1
+ [ -$? -ne 0 ] && echo "FAIL"
+
+ __test_user_io $dev 1 513 > "$FULL" 2>&1
+ [ -$? -ne 0 ] && echo "FAIL"
+
+ __test_user_io $dev 511 1024 > "$FULL" 2>&1
+ [ -$? -ne 0 ] && echo "FAIL"
+
+ __test_user_io $dev 511 1023 > "$FULL" 2>&1
+ [ -$? -ne 0 ] && echo "FAIL"
+
+ __test_user_io $dev 511 1025 > "$FULL" 2>&1
+ [ -$? -ne 0 ] && echo "FAIL"
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ modprobe nvmet
+ modprobe nvme-loop
+
+ local port
+ local nvmedev
+ local loop_dev
+ local file_path="$TMPDIR/img"
+ local subsys_name="blktests-subsystem-1"
+
+ truncate -s 1G "${file_path}"
+
+ loop_dev="$(losetup -f --show "${file_path}")"
+
+ _create_nvmet_subsystem "${subsys_name}" "${loop_dev}" \
+ "91fdba0d-f87b-4c25-b80f-db7be1418b9e"
+ port="$(_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"
+
+ test_user_io "/dev/${nvmedev}n1"
+
+ nvme disconnect -n "${subsys_name}" >> "$FULL" 2>&1
+
+ _remove_nvmet_subsystem_from_port "${port}" "${subsys_name}"
+ _remove_nvmet_subsystem "${subsys_name}"
+ _remove_nvmet_port "${port}"
+
+ losetup -d "${loop_dev}"
+
+ rm "${file_path}"
+
+ modprobe -r nvme-loop
+ modprobe -r nvmet
+
+ echo "Test complete"
+}
diff --git a/tests/block/029.out b/tests/block/029.out
new file mode 100644
index 000000000000..6defa8e84f0a
--- /dev/null
+++ b/tests/block/029.out
@@ -0,0 +1,4 @@
+Running block/029
+91fdba0d-f87b-4c25-b80f-db7be1418b9e
+uuid.91fdba0d-f87b-4c25-b80f-db7be1418b9e
+Test complete
--
2.9.5