selftests: ublk: add SET_PARAMS validation test

Add test_params_01.sh for SET_PARAMS. The test checks valid basic
parameters and several invalid parameter cases.

Also cover zoned parameters, including a non-power-of-2 zone size. This
case must fail in SET_PARAMS instead of being accepted and rejected later
when the device is started.

Signed-off-by: Yao Sang <sangyao@kylinos.cn>
Link: https://patch.msgid.link/20260814023226.354288-4-sangyao@kylinos.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>

tools/testing/selftests/ublk/Makefile

@@ -55,6 +55,8 @@ TEST_PROGS += test_stripe_06.sh
 TEST_PROGS += test_part_01.sh
 TEST_PROGS += test_part_02.sh
 
+TEST_PROGS += test_params_01.sh
+
 TEST_PROGS += test_shmemzc_01.sh
 TEST_PROGS += test_shmemzc_02.sh
 TEST_PROGS += test_shmemzc_03.sh

tools/testing/selftests/ublk/test_params_01.sh

@@ -0,0 +1,114 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
+
+ERR_CODE=0
+
+run_set_params_success()
+{
+	local name=$1
+
+	shift
+
+	echo "$name"
+	if ! "$UBLK_PROG" set_params -q 1 -d 2 "$@"; then
+		echo "$name: SET_PARAMS check failed"
+		return 1
+	fi
+}
+
+run_set_params_failure()
+{
+	local name=$1
+
+	shift
+
+	echo "$name"
+	if "$UBLK_PROG" set_params -q 1 -d 2 "$@"; then
+		echo "$name: SET_PARAMS succeeded unexpectedly"
+		return 1
+	fi
+}
+
+run_zoned_set_params_success()
+{
+	local name=$1
+
+	shift
+
+	echo "$name"
+	if ! "$UBLK_PROG" set_params -q 1 -d 2 -u --zoned "$@"; then
+		echo "$name: SET_PARAMS check failed"
+		return 1
+	fi
+}
+
+run_zoned_set_params_failure()
+{
+	local name=$1
+
+	shift
+
+	echo "$name"
+	if "$UBLK_PROG" set_params -q 1 -d 2 -u --zoned "$@"; then
+		echo "$name: SET_PARAMS succeeded unexpectedly"
+		return 1
+	fi
+}
+
+_prep_test "params" "SET_PARAMS validation"
+
+if [ ! -c /dev/ublk-control ]; then
+	_cleanup_test
+	_show_result $TID $UBLK_SKIP_CODE
+fi
+
+run_set_params_success "valid basic params" ||
+	ERR_CODE=1
+
+run_set_params_failure "missing basic params" \
+	--param_types none ||
+	ERR_CODE=1
+
+run_set_params_failure "logical block larger than physical block" \
+	--logical_bs_shift 12 --physical_bs_shift 9 ||
+	ERR_CODE=1
+
+run_set_params_failure "too large max sectors" \
+	--max_sectors 2049 ||
+	ERR_CODE=1
+
+if _have_feature "ZONED" && _have_feature "USER_COPY"; then
+	run_zoned_set_params_success "valid zoned params" \
+		--param_types basic,zoned ||
+		ERR_CODE=1
+
+	run_zoned_set_params_failure "missing zoned params" ||
+		ERR_CODE=1
+
+	run_zoned_set_params_failure "non-power-of-2 zone size" \
+		--param_types basic,zoned \
+		--chunk_sectors 96 --dev_sectors $((96 * 16)) ||
+		ERR_CODE=1
+
+	run_zoned_set_params_failure "zero max zone append" \
+		--param_types basic,zoned \
+		--max_zone_append_sectors 0 ||
+		ERR_CODE=1
+
+	run_zoned_set_params_failure "too many open zones" \
+		--param_types basic,zoned \
+		--dev_sectors $((128 * 4)) --max_open_zones 5 ||
+		ERR_CODE=1
+
+	run_zoned_set_params_failure "too many active zones" \
+		--param_types basic,zoned \
+		--dev_sectors $((128 * 4)) --max_active_zones 5 ||
+		ERR_CODE=1
+else
+	echo "zoned ublk feature unavailable, skip zoned SET_PARAMS cases"
+fi
+
+_cleanup_test
+_show_result $TID $ERR_CODE