[PATCH 3/3] tests/nvme/034: Add a test for the fcloop driver

[Hannes Reinecke <hare@suse.de>]

Add a test for the in-kernel fcloop driver. Despite being a loop
driver it still requires an actual FC card to run this test.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 common/fcloop      |  58 +++++++++++++++++++++++++
 tests/nvme/034     | 122 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/034.out |   3 ++
 3 files changed, 183 insertions(+)
 create mode 100644 common/fcloop
 create mode 100644 tests/nvme/034
 create mode 100644 tests/nvme/034.out

diff --git a/common/fcloop b/common/fcloop
new file mode 100644
index 0000000..b9a1ce7
--- /dev/null
+++ b/common/fcloop
@@ -0,0 +1,58 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+#
+# fcloop helper functions.
+
+. common/shellcheck
+
+_nvme_fcloop_add_rport() {
+	local local_wwnn="$1"
+	local local_wwpn="$2"
+	local remote_wwnn="$3"
+	local remote_wwpn="$4"
+	local loopctl=/sys/class/fcloop/ctl
+
+	echo "wwnn=${remote_wwnn},wwpn=${remote_wwpn},lpwwnn=${local_wwnn},lpwwpn=${local_wwpn},roles=0x60" > ${loopctl}/add_remote_port
+}
+
+_nvme_fcloop_del_rport() {
+	local local_wwnn="$1"
+	local local_wwpn="$2"
+	local remote_wwnn="$3"
+	local remote_wwpn="$4"
+	local loopctl=/sys/class/fcloop/ctl
+
+	echo "wwnn=${remote_wwnn},wwpn=${remote_wwpn}" > ${loopctl}/del_remote_port
+}
+
+_nvme_fcloop_add_lport() {
+	local wwnn="$1"
+	local wwpn="$2"
+	local loopctl=/sys/class/fcloop/ctl
+
+	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/add_local_port
+}
+
+_nvme_fcloop_del_lport() {
+	local wwnn="$1"
+	local wwpn="$2"
+	local loopctl=/sys/class/fcloop/ctl
+
+	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/del_local_port
+}
+
+_nvme_fcloop_add_tport() {
+	local wwnn="$1"
+	local wwpn="$2"
+	local loopctl=/sys/class/fcloop/ctl
+
+	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/add_target_port
+}
+
+_nvme_fcloop_del_tport() {
+	local wwnn="$1"
+	local wwpn="$2"
+	local loopctl=/sys/class/fcloop/ctl
+
+	echo "wwnn=${wwnn},wwpn=${wwpn}" > ${loopctl}/del_target_port
+}
diff --git a/tests/nvme/034 b/tests/nvme/034
new file mode 100644
index 0000000..1a197f2
--- /dev/null
+++ b/tests/nvme/034
@@ -0,0 +1,122 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (C) 2018 Johannes Thumshirn, Hannes Reinecke, SUSE Linux GmbH
+#
+# Reproducer for nvme-fcloop
+#
+
+. tests/nvme/rc
+. common/fcloop
+
+DESCRIPTION="create nvme-fcloop with two ports and connect/disconnect"
+
+requires() {
+	_have_program nvme && \
+		_have_modules loop nvme-fcloop nvmet nvmet-fc && \
+		_have_configfs
+}
+
+test() {
+	local subsys="blktests-subsystem-1"
+	local remote_wwnn1="0x100140111111dbcc"
+	local remote_wwpn1="0x200140111111dbcc"
+	local remote_wwnn2="0x100140111111dbcd"
+	local remote_wwpn2="0x200140111111dbcd"
+	local host_wwnn1="0x100140111111dac8"
+	local host_wwpn1="0x200140111111dac8"
+	local host_wwnn2="0x100140111111dac9"
+	local host_wwpn2="0x200140111111dac9"
+
+	echo "Running ${TEST_NAME}"
+
+	modprobe nvmet-fc
+	modprobe nvme-fcloop
+
+	_nvme_fcloop_add_tport ${remote_wwnn1} ${remote_wwpn1}
+	_nvme_fcloop_add_tport ${remote_wwnn2} ${remote_wwpn2}
+
+	_nvme_fcloop_add_lport ${host_wwnn1} ${host_wwpn1}
+	_nvme_fcloop_add_lport ${host_wwnn2} ${host_wwpn2}
+
+	_nvme_fcloop_add_rport ${host_wwnn1} ${host_wwpn1} \
+		${remote_wwnn1} ${remote_wwpn1}
+	_nvme_fcloop_add_rport ${host_wwnn2} ${host_wwpn2} \
+		${remote_wwnn2} ${remote_wwpn2}
+
+	local port1
+	port1=$(_create_nvmet_port "fc")
+	ag1="$(_create_nvmet_anagroup "${port1}")"
+
+	local port2
+	port2=$(_create_nvmet_port "fc")
+	ag2="$(_create_nvmet_anagroup "${port2}")"
+
+	local remote_traddr1
+	remote_traddr1=$(printf "nn-%s:pn-%s" "${remote_wwnn1}" "${remote_wwpn1}")
+	echo fc > /sys/kernel/config/nvmet/ports/${port1}/addr_adrfam
+	echo "${remote_traddr1}" > /sys/kernel/config/nvmet/ports/${port1}/addr_traddr
+
+	local remote_traddr2
+	remote_traddr2=$(printf "nn-%s:pn-%s" "${remote_wwnn2}" "${remote_wwpn2}")
+	echo fc > /sys/kernel/config/nvmet/ports/${port2}/addr_adrfam
+	echo "${remote_traddr2}" > /sys/kernel/config/nvmet/ports/${port2}/addr_traddr
+
+	truncate -s 1G "$TMPDIR/img"
+
+	local loop_dev
+	loop_dev="$(losetup -f --show "$TMPDIR/img")"
+
+	_create_nvmet_subsystem "${subsys}" "${loop_dev}" \
+		"91fdba0d-f87b-4c25-b80f-db7be1418b9e" "1"
+	_add_nvmet_subsys_to_port "${port1}" "${subsys}"
+	_add_nvmet_subsys_to_port "${port2}" "${subsys}"
+
+	_set_nvmet_anagroup_state "${port2}" "1" "inaccessible"
+	_set_nvmet_anagroup_state "${port2}" "2" "optimized"
+
+	local host_traddr1
+	host_traddr1=$(printf "nn-%s:pn-%s" "${host_wwnn1}" "${host_wwpn1}")
+
+	nvme connect -t fc -a "${remote_traddr1}"  -w "${host_traddr1}" \
+		-n "${subsys}"
+
+	local host_traddr2
+	host_traddr2=$(printf "nn-%s:pn-%s" "${host_wwnn2}" "${host_wwpn2}")
+
+	nvme connect -t fc -a "${remote_traddr2}"  -w "${host_traddr2}" \
+		-n "${subsys}"
+
+	nvmedev="$(_find_nvme_ns 91fdba0d-f87b-4c25-b80f-db7be1418b9e)"
+
+	# Allow I/O to settle
+	udevadm settle
+
+	nvme disconnect -n "${subsys}"
+
+	_remove_nvmet_subsystem_from_port "${port1}" "${subsys}"
+	_remove_nvmet_subsystem_from_port "${port2}" "${subsys}"
+	_remove_nvmet_subsystem "${subsys}"
+	_remove_nvmet_anagroup "${port1}" "${ag1}"
+	_remove_nvmet_port "${port1}"
+	_remove_nvmet_anagroup "${port2}" "${ag2}"
+	_remove_nvmet_port "${port2}"
+
+	losetup -d "$loop_dev"
+	rm "$TMPDIR/img"
+
+	# Fixme: need to wait for RCU grace period
+	sleep 5
+
+	_nvme_fcloop_del_rport "${host_wwnn1}" "${host_wwpn1}" \
+		"${remote_wwnn1}" "${remote_wwpn1}"
+	_nvme_fcloop_del_rport "${host_wwnn2}" "${host_wwpn2}" \
+		"${remote_wwnn2}" "${remote_wwpn2}"
+
+	_nvme_fcloop_del_tport "${remote_wwnn1}" "${remote_wwpn1}"
+	_nvme_fcloop_del_tport "${remote_wwnn2}" "${remote_wwpn2}"
+
+	_nvme_fcloop_del_lport "${host_wwnn1}" "${host_wwpn1}"
+	_nvme_fcloop_del_lport "${host_wwnn2}" "${host_wwpn2}"
+
+	echo "Test complete"
+}
diff --git a/tests/nvme/034.out b/tests/nvme/034.out
new file mode 100644
index 0000000..832d645
--- /dev/null
+++ b/tests/nvme/034.out
@@ -0,0 +1,3 @@
+Running nvme/034
+NQN:blktests-subsystem-1 disconnected 2 controller(s)
+Test complete
-- 
2.13.7