[PATCH blktests v2 3/3] nvme/047: Test different queue counts

[Daniel Wagner <dwagner@suse.de>]

Test if the transport are handling the different queues correctly.

We also issue some I/O to make sure that not just the plain connect
works. For this we have to use a file system which supports direct I/O
and hence we use a device backend.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
 tests/nvme/047     | 65 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/047.out |  2 ++
 2 files changed, 67 insertions(+)
 create mode 100755 tests/nvme/047
 create mode 100644 tests/nvme/047.out

diff --git a/tests/nvme/047 b/tests/nvme/047
new file mode 100755
index 000000000000..6a37f7a569b7
--- /dev/null
+++ b/tests/nvme/047
@@ -0,0 +1,65 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (C) 2023 SUSE LLC
+#
+# Test NVMe queue counts.
+
+. tests/nvme/rc
+. common/xfs
+
+DESCRIPTION="test NVMe queue counts"
+
+requires() {
+	_nvme_requires
+	_have_xfs
+	_have_fio
+	_require_nvme_trtype_is_fabrics
+}
+
+test() {
+	echo "Running ${TEST_NAME}"
+
+	_setup_nvmet
+
+	local port
+	local nvmedev
+	local loop_dev
+	local file_path="$TMPDIR/img"
+	local subsys_name="blktests-subsystem-1"
+
+	truncate -s 512M "${file_path}"
+
+	loop_dev="$(losetup -f --show "${file_path}")"
+
+	_create_nvmet_subsystem "${subsys_name}" "${loop_dev}" \
+		"91fdba0d-f87b-4c25-b80f-db7be1418b9e"
+	port="$(_create_nvmet_port "${nvme_trtype}")"
+	_add_nvmet_subsys_to_port "${port}" "${subsys_name}"
+
+	_nvme_connect_subsys "${nvme_trtype}" "${subsys_name}" \
+		--nr-write-queues 1
+
+	nvmedev=$(_find_nvme_dev "${subsys_name}")
+
+	_xfs_run_fio_verify_io /dev/"${nvmedev}n1" "1m"
+
+	_nvme_disconnect_subsys "${subsys_name}" >> "$FULL" 2>&1
+
+	_nvme_connect_subsys "${nvme_trtype}" "${subsys_name}" \
+		--nr-write-queues 1 \
+		--nr-poll-queues 1
+
+	_xfs_run_fio_verify_io /dev/"${nvmedev}n1" "1m"
+
+	_nvme_disconnect_subsys "${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}"
+
+	echo "Test complete"
+}
diff --git a/tests/nvme/047.out b/tests/nvme/047.out
new file mode 100644
index 000000000000..915d0a2389ca
--- /dev/null
+++ b/tests/nvme/047.out
@@ -0,0 +1,2 @@
+Running nvme/047
+Test complete
-- 
2.40.0