[PATCH] block: 028: block integrity funtion test

[Ming Lei <ming.lei@redhat.com>]

Use scsi_debug's dif/dix to cover block layer's integrity function
test, then it can serve as block integrity regeression test.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 tests/block/028     | 42 ++++++++++++++++++++++++++++++++++++++++++
 tests/block/028.out |  9 +++++++++
 2 files changed, 51 insertions(+)
 create mode 100755 tests/block/028
 create mode 100644 tests/block/028.out

diff --git a/tests/block/028 b/tests/block/028
new file mode 100755
index 000000000000..9b76b93d9eb6
--- /dev/null
+++ b/tests/block/028
@@ -0,0 +1,42 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2019 Ming Lei <ming.lei@redhat.com>
+#
+# Test basic DIF/DIX test. Regression test for commit 7809167da5c86fd6
+# ("block: don't lose track of REQ_INTEGRITY flag")
+
+. tests/block/rc
+. common/scsi_debug
+
+DESCRIPTION="do scsi_debug dif/dix function test"
+
+requires() {
+	_have_scsi_debug
+}
+
+test_pi() {
+	if ! _init_scsi_debug dev_size_mb=128 dix=$1 dif=$2 delay=0; then
+		return 1
+	fi
+
+	local dev="/dev/${SCSI_DEBUG_DEVICES[0]}"
+	local nr_sects=`blockdev --getsz $dev`
+
+	dd if=/dev/urandom of=$dev bs=512 count=$nr_sects status=none
+	dd if=$dev of=/dev/null bs=512 status=none
+
+	_exit_scsi_debug
+}
+
+test() {
+	echo "Running ${TEST_NAME}"
+
+	for ((dix = 0; dix <= 1; dix++)); do
+		for ((dif = 0; dif <= 3; dif++)); do
+			test_pi $dix $dif
+			echo "Test(dix:$dix dif:$dif) complete"
+		done
+	done
+
+	rm -f "$FULL"
+}
diff --git a/tests/block/028.out b/tests/block/028.out
new file mode 100644
index 000000000000..d2512334b9f5
--- /dev/null
+++ b/tests/block/028.out
@@ -0,0 +1,9 @@
+Running block/028
+Test(dix:0 dif:0) complete
+Test(dix:0 dif:1) complete
+Test(dix:0 dif:2) complete
+Test(dix:0 dif:3) complete
+Test(dix:1 dif:0) complete
+Test(dix:1 dif:1) complete
+Test(dix:1 dif:2) complete
+Test(dix:1 dif:3) complete
-- 
2.9.5