linux-kernel - [PATCH blktests 1/3] scsi/010: add unmap write zeroes tests

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Message-ID: <20250318072835.3508696-2-yi.zhang@huaweicloud.com>
Date: Tue, 18 Mar 2025 15:28:33 +0800
From: Zhang Yi <yi.zhang@...weicloud.com>
To: linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org,
	linux-block@...r.kernel.org,
	dm-devel@...ts.linux.dev,
	linux-nvme@...ts.infradead.org,
	linux-scsi@...r.kernel.org
Cc: linux-xfs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	hch@....de,
	tytso@....edu,
	djwong@...nel.org,
	john.g.garry@...cle.com,
	bmarzins@...hat.com,
	chaitanyak@...dia.com,
	shinichiro.kawasaki@....com,
	yi.zhang@...wei.com,
	yi.zhang@...weicloud.com,
	chengzhihao1@...wei.com,
	yukuai3@...wei.com,
	yangerkun@...wei.com
Subject: [PATCH blktests 1/3] scsi/010: add unmap write zeroes tests

From: Zhang Yi <yi.zhang@...wei.com>

Test block device unmap write zeroes sysfs interface with various SCSI
debug devices. The /sys/block/<disk>/queue/write_zeroes_unmap interface
should return 1 if the SCSI device enable the WRITE SAME command with
unmap functionality, and it should return 0 otherwise.

Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
---
 tests/scsi/010     | 56 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/scsi/010.out |  2 ++
 2 files changed, 58 insertions(+)
 create mode 100755 tests/scsi/010
 create mode 100644 tests/scsi/010.out

diff --git a/tests/scsi/010 b/tests/scsi/010
new file mode 100755
index 0000000..27a672c
--- /dev/null
+++ b/tests/scsi/010
@@ -0,0 +1,56 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2025 Huawei.
+#
+# Test block device unmap write zeroes sysfs interface with various scsi
+# devices.
+
+. tests/scsi/rc
+. common/scsi_debug
+
+DESCRIPTION="test unmap write zeroes sysfs interface with scsi devices"
+QUICK=1
+
+requires() {
+	_have_scsi_debug
+}
+
+device_requries() {
+	_require_test_dev_sysfs queue/write_zeroes_unmap
+}
+
+test() {
+	echo "Running ${TEST_NAME}"
+
+	# disable WRITE SAME with unmap
+	if ! _configure_scsi_debug lbprz=0; then
+		return 1
+	fi
+	umap="$(cat "/sys/block/${SCSI_DEBUG_DEVICES[0]}/queue/write_zeroes_unmap")"
+	if [[ $umap -ne 0 ]]; then
+		echo "Test disable WRITE SAME with unmap failed."
+	fi
+	_exit_scsi_debug
+
+	# enable WRITE SAME(16) with unmap
+	if ! _configure_scsi_debug lbprz=1 lbpws=1; then
+		return 1
+	fi
+	umap="$(cat "/sys/block/${SCSI_DEBUG_DEVICES[0]}/queue/write_zeroes_unmap")"
+	if [[ $umap -ne 1 ]]; then
+		echo "Test enable WRITE SAME(16) with unmap failed."
+	fi
+	_exit_scsi_debug
+
+	# enable WRITE SAME(10) with unmap
+	if ! _configure_scsi_debug lbprz=1 lbpws10=1; then
+		return 1
+	fi
+	umap="$(cat "/sys/block/${SCSI_DEBUG_DEVICES[0]}/queue/write_zeroes_unmap")"
+	if [[ $umap -ne 1 ]]; then
+		echo "Test enable WRITE SAME(10) with unmap failed."
+	fi
+	_exit_scsi_debug
+
+	echo "Test complete"
+}
diff --git a/tests/scsi/010.out b/tests/scsi/010.out
new file mode 100644
index 0000000..6581d5e
--- /dev/null
+++ b/tests/scsi/010.out
@@ -0,0 +1,2 @@
+Running scsi/010
+Test complete
-- 
2.46.1