#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2017-2018 Western Digital Corporation or its affiliates.
#
# Test many target bdev-ns creation/deletion under one subsystem.

. tests/nvme/rc

DESCRIPTION="create/delete many NVMeOF block device-backed ns and test discovery"

requires() {
	_have_program nvme && _have_modules nvme-loop nvmet && _have_configfs
}

test() {
	echo "Running ${TEST_NAME}"

	local port
	local iterations=1000
	local loop_dev
	local subsys_nqn="blktests-subsystem-1"

	modprobe nvmet
	modprobe nvme-loop

	loop_dev="$(losetup -f)"

	_create_nvmet_subsystem "${subsys_nqn}" "${loop_dev}"

	for ((i = 2; i <= iterations; i++)); do
		_create_nvmet_ns "${subsys_nqn}" "${i}" "${loop_dev}"
	done

	port="$(_create_nvmet_port "loop")"
	_add_nvmet_subsys_to_port "$port" "${subsys_nqn}"

	nvme discover -t loop | sed -r -e "s/portid:  [0-9]+/portid:  X/"
	_remove_nvmet_subsystem_from_port "${port}" "${subsys_nqn}"
	_remove_nvmet_port "${port}"

	for ((i = iterations; i > 1; i--)); do
		_remove_nvmet_ns "${subsys_nqn}" $i
	done

	_remove_nvmet_subsystem "${subsys_nqn}"

	modprobe -r nvme-loop nvmet
	echo "Test complete"
}
