From: Caleb Sander Mateos <csander@purestorage.com>
To: Ming Lei <tom.leiming@gmail.com>, Jens Axboe <axboe@kernel.dk>,
Shuah Khan <shuah@kernel.org>
Cc: linux-block@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org,
Caleb Sander Mateos <csander@purestorage.com>
Subject: [PATCH v2 7/8] selftests: ublk: add UBLK_F_IO_DESC_SIZE test
Date: Mon, 3 Aug 2026 15:14:39 -0600 [thread overview]
Message-ID: <20260803211441.2538144-8-csander@purestorage.com> (raw)
In-Reply-To: <20260803211441.2538144-1-csander@purestorage.com>
Add test loop_08, which creates a ublk device with UBLK_F_IO_DESC_SIZE
enabled and io_desc_size set to 64. The test issues verified I/O to the
device using fio.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
---
tools/testing/selftests/ublk/Makefile | 1 +
tools/testing/selftests/ublk/test_loop_08.sh | 25 ++++++++++++++++++++
2 files changed, 26 insertions(+)
create mode 100755 tools/testing/selftests/ublk/test_loop_08.sh
diff --git a/tools/testing/selftests/ublk/Makefile b/tools/testing/selftests/ublk/Makefile
index 6e4fe8d1fed1..b00ef238a038 100644
--- a/tools/testing/selftests/ublk/Makefile
+++ b/tools/testing/selftests/ublk/Makefile
@@ -32,10 +32,11 @@ TEST_PROGS += test_loop_02.sh
TEST_PROGS += test_loop_03.sh
TEST_PROGS += test_loop_04.sh
TEST_PROGS += test_loop_05.sh
TEST_PROGS += test_loop_06.sh
TEST_PROGS += test_loop_07.sh
+TEST_PROGS += test_loop_08.sh
TEST_PROGS += test_integrity_01.sh
TEST_PROGS += test_integrity_02.sh
TEST_PROGS += test_integrity_03.sh
diff --git a/tools/testing/selftests/ublk/test_loop_08.sh b/tools/testing/selftests/ublk/test_loop_08.sh
new file mode 100755
index 000000000000..f7af2587482d
--- /dev/null
+++ b/tools/testing/selftests/ublk/test_loop_08.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
+
+ERR_CODE=0
+
+if ! _have_program fio; then
+ exit "$UBLK_SKIP_CODE"
+fi
+
+_prep_test "loop" "write and verify with io_desc_size"
+
+_create_backfile 0 256M
+
+dev_id=$(_add_ublk_dev -t loop --io_desc_size 64 "${UBLK_BACKFILES[0]}")
+_check_add_dev $TID $?
+
+# run fio over the ublk disk
+_run_fio_verify_io --filename=/dev/ublkb"${dev_id}" --size=256M
+ERR_CODE=$?
+
+_cleanup_test
+
+_show_result $TID $ERR_CODE
--
2.54.0
next prev parent reply other threads:[~2026-08-03 21:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 21:14 [PATCH v2 0/8] ublk: io_desc optimizations Caleb Sander Mateos
2026-08-03 21:14 ` [PATCH v2 1/8] ublk: consistently use u16 for queue and tag numbers Caleb Sander Mateos
2026-08-03 21:14 ` [PATCH v2 2/8] ublk: remove struct ublk_zoned_report_desc's operation field Caleb Sander Mateos
2026-08-03 21:14 ` [PATCH v2 3/8] ublk: split request validation from io_desc init Caleb Sander Mateos
2026-08-03 21:14 ` [PATCH v2 4/8] ublk: initialize io_desc on daemon task Caleb Sander Mateos
2026-08-03 21:14 ` [PATCH v2 5/8] ublk: add UBLK_F_IO_DESC_SIZE Caleb Sander Mateos
2026-08-03 21:14 ` [PATCH v2 6/8] selftests: ublk: add support for --io_desc_size Caleb Sander Mateos
2026-08-03 21:14 ` Caleb Sander Mateos [this message]
2026-08-03 21:14 ` [PATCH v2 8/8] ublk: lift checks out of ublk_{,un}map_io() Caleb Sander Mateos
2026-08-04 2:32 ` [PATCH v2 0/8] ublk: io_desc optimizations Jens Axboe
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