linux-kernel - [PATCH blktests v2 06/11] nvme/033: Simple test to create and connect to a passthru target

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Message-Id: <20200930185422.11494-7-logang@deltatee.com>
Date:   Wed, 30 Sep 2020 12:54:17 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
        linux-block@...r.kernel.org, Omar Sandoval <osandov@...ndov.com>
Cc:     Sagi Grimberg <sagi@...mberg.me>,
        Chaitanya Kulkarni <Chaitanya.Kulkarni@....com>,
        Stephen Bates <sbates@...thlin.com>,
        Logan Gunthorpe <logang@...tatee.com>
Subject: [PATCH blktests v2 06/11] nvme/033: Simple test to create and connect to a passthru target

This tests creates and connects to a passthru controller backed
by a test NVMe namespace. It then verifies that some common fields
in id-ctrl and id-ns are the same in the target and the orginial
device.

Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
---
 tests/nvme/033     | 67 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/033.out |  7 +++++
 2 files changed, 74 insertions(+)
 create mode 100755 tests/nvme/033
 create mode 100644 tests/nvme/033.out

diff --git a/tests/nvme/033 b/tests/nvme/033
new file mode 100755
index 000000000000..c6a3f7feb50e
--- /dev/null
+++ b/tests/nvme/033
@@ -0,0 +1,67 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2019 Logan Gunthorpe
+# Copyright (C) 2019 Eideticom Communications Inc.
+
+. tests/nvme/rc
+
+DESCRIPTION="create and connect to an NVMeOF target with a passthru controller"
+QUICK=1
+
+requires() {
+	_nvme_requires
+	_have_kernel_option NVME_TARGET_PASSTHRU
+}
+
+nvme_info() {
+	local ns=$1
+
+	nvme id-ctrl "${ns}" | grep -E '^(vid|sn|mn|fr) '
+	nvme id-ns "${ns}" | grep -E '^(nsze|ncap) '
+}
+
+compare_dev_info() {
+	local passthru_dev=$1
+	local testdev_info
+	local passthru_info
+
+	testdev_info=$(nvme_info "${TEST_DEV}")
+	passthru_info=$(nvme_info "${passthru_dev}")
+
+	cat >> "${FULL}" <<- EOF
+
+	Test Device ${TEST_DEV} Info:
+	$testdev_info
+
+	Passthru Device ${passthru_dev} Info:
+	$passthru_info
+
+	EOF
+
+	diff -u <(echo "${testdev_info}") <(echo "${passthru_info}")
+	if [[ "${testdev_info}" != "${passthru_info}" ]]; then
+		echo "ERROR: Device information does not match! (See ${FULL})"
+	fi
+}
+
+test_device() {
+	local subsys="blktests-subsystem-1"
+	local nsdev
+	local port
+
+	echo "Running ${TEST_NAME}"
+
+	_setup_nvmet
+	port=$(_nvmet_passthru_target_setup "${subsys}")
+
+	_nvme_discover "${nvme_trtype}" | _filter_discovery
+
+	nsdev=$(_nvmet_passthru_target_connect "${nvme_trtype}" "${subsys}")
+
+	compare_dev_info "${nsdev}"
+
+	_nvme_disconnect_subsys "${subsys}"
+	_nvmet_passthru_target_cleanup "${port}" "${subsys}"
+
+	echo "Test complete"
+}
diff --git a/tests/nvme/033.out b/tests/nvme/033.out
new file mode 100644
index 000000000000..6f45a1d5ec1d
--- /dev/null
+++ b/tests/nvme/033.out
@@ -0,0 +1,7 @@
+Running nvme/033
+Discovery Log Number of Records 1, Generation counter X
+=====Discovery Log Entry 0======
+trtype:  loop
+subnqn:  blktests-subsystem-1
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Test complete
-- 
2.20.1