[PATCH blktests 0/7] nvme: add test cases for ANA support

[PATCH blktests 0/7] nvme: add test cases for ANA support

[Shin'ichiro Kawasaki]

Hannes reworked the nvme test group scripts to support ANA, or Asymmetric
Namespace Access. This work is tracked with GitHub PR 146 [1]. The amount of
change is large, then I split them into a few series for easier review. This is
the last series, which follows the second series [2] and a follow-up fix [3].

The first 6 patches in this series prepare for the new test case addition. The
7th patch add the test case for basic ANA support. The last patch add the other
test case for rapid namespace remapping.

  [1] https://github.com/osandov/blktests/pull/146
  [2] https://lore.kernel.org/linux-nvme/20241107111354.80606-1-shinichiro.kawasaki@wdc.com/
  [3] https://lore.kernel.org/linux-nvme/20241120102051.247995-1-shinichiro.kawasaki@wdc.com/

Hannes Reinecke (7):
  nvme/031: open-code helper functions
  nvme: add _setup_nvmet_port_ana()
  nvme: add _setup_nvmet_ns_ana()
  nvme/rc: add argument '--ports' to _nvmet_target_setup()
  nvme: delete all ana_groups when removing a port
  test/nvme: add test for basic ANA support
  test/nvme: add test for rapid namespace remapping

 common/nvme        |  55 ++++++++++++++++++++++--
 tests/nvme/031     |  14 +++---
 tests/nvme/055     |  97 +++++++++++++++++++++++++++++++++++++++++
 tests/nvme/055.out |   5 +++
 tests/nvme/056     | 105 +++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/056.out |  14 ++++++
 tests/nvme/rc      |  31 +++++++++++++
 7 files changed, 312 insertions(+), 9 deletions(-)
 create mode 100755 tests/nvme/055
 create mode 100644 tests/nvme/055.out
 create mode 100755 tests/nvme/056
 create mode 100644 tests/nvme/056.out

-- 
2.47.0

[PATCH blktests 1/7] nvme/031: open-code helper functions

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

The default helper functions are doing quite some things which are unneccesary for
this test, so open-code them to call just the required functions.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 tests/nvme/031 | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tests/nvme/031 b/tests/nvme/031
index cd69e8e..3333338 100755
--- a/tests/nvme/031
+++ b/tests/nvme/031
@@ -44,14 +44,18 @@ test() {
 	port="$(_create_nvmet_port)"
 
 	for ((i = 0; i < iterations; i++)); do
-		_nvmet_target_setup --subsysnqn "${subsys}$i" \
+		subsysnqn=$(printf "blktests-subsystem-%d" "$i")
+		_create_nvmet_subsystem --subsysnqn "${subsysnqn}" \
 			--blkdev "${loop_dev}"
+		_add_nvmet_subsys_to_port "${port}" "${subsysnqn}"
+		_create_nvmet_host "${subsysnqn}" "${def_hostnqn}"
 
-		_nvme_connect_subsys --subsysnqn "${subsys}$i"
-		_nvme_disconnect_subsys --subsysnqn "${subsys}$i" >> "${FULL}" 2>&1
+		_nvme_connect_subsys --subsysnqn "${subsysnqn}"
+		_nvme_disconnect_subsys --subsysnqn "${subsysnqn}" >> "${FULL}" 2>&1
 
-		_nvmet_target_cleanup --subsysnqn "${subsys}$i" \
-			--blkdev "${loop_dev}"
+		_remove_nvmet_subsystem_from_port "${port}" "${subsysnqn}"
+		_remove_nvmet_subsystem "${subsysnqn}"
+		_remove_nvmet_host "${def_hostnqn}"
 	done
 
 	_remove_nvmet_port "${port}"
-- 
2.47.0

Re: [PATCH blktests 1/7] nvme/031: open-code helper functions

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> The default helper functions are doing quite some things which are unneccesary for
> this test, so open-code them to call just the required functions.
>
> Signed-off-by: Hannes Reinecke<hare@suse.de>
> Signed-off-by: Shin'ichiro Kawasaki<shinichiro.kawasaki@wdc.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

[PATCH blktests 2/7] nvme: add _setup_nvmet_port_ana()

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

Add a function to set the ANA state and group id for a port.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 common/nvme | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/common/nvme b/common/nvme
index fd472fe..e11776b 100644
--- a/common/nvme
+++ b/common/nvme
@@ -8,6 +8,8 @@
 def_traddr="127.0.0.1"
 def_adrfam="ipv4"
 def_trsvcid="4420"
+def_anagrpid="1"
+def_anastate="optimized"
 def_remote_wwnn="0x10001100ab000001"
 def_remote_wwpn="0x20001100ab000001"
 def_local_wwnn="0x10001100aa000001"
@@ -470,6 +472,23 @@ _create_nvmet_port() {
 	echo "${port}"
 }
 
+_setup_nvmet_port_ana() {
+	local port="$1"
+	local anagrpid="${2:-$def_anagrpid}"
+	local anastate="${3:-$def_anastate}"
+	local cfsport="${NVMET_CFS}/ports/${port}"
+	local anaport="${cfsport}/ana_groups/${anagrpid}"
+
+	if [[ ! -d "${anaport}" ]] ; then
+		if [[ "${anagrpid}" -eq 1 ]]; then
+			echo "FAIL target setup failed, ANA not supported"
+			exit 1
+		fi
+		mkdir "${anaport}"
+	fi
+	echo "${anastate}" > "${anaport}/ana_state"
+}
+
 _remove_nvmet_port() {
 	local port="$1"
 
-- 
2.47.0

Re: [PATCH blktests 2/7] nvme: add _setup_nvmet_port_ana()

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> From: Hannes Reinecke<hare@suse.de>
>
> Add a function to set the ANA state and group id for a port.
>
> Signed-off-by: Hannes Reinecke<hare@suse.de>
> Signed-off-by: Shin'ichiro Kawasaki<shinichiro.kawasaki@wdc.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

[PATCH blktests 3/7] nvme: add _setup_nvmet_ns_ana()

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

Add a function to set the ANA groupid for a namespace.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 common/nvme | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/common/nvme b/common/nvme
index e11776b..9786e4e 100644
--- a/common/nvme
+++ b/common/nvme
@@ -564,6 +564,19 @@ _create_nvmet_ns() {
 	echo "${uuid}"
 }
 
+_setup_nvmet_ns_ana() {
+	local nvmet_subsystem="$1"
+	local nsid="$2"
+	local anagrpid="${3:-def_anagrpid}"
+	local subsys_path="${NVMET_CFS}/subsystems/${nvmet_subsystem}"
+	local ns_path="${subsys_path}/namespaces/${nsid}"
+
+	if [[ ! -d "${ns_path}" ]]; then
+		return
+	fi
+	echo "${anagrpid}" > "${ns_path}/anagrpid"
+}
+
 _create_nvmet_subsystem() {
 	local subsystem="${def_subsysnqn}"
 	local blkdev
-- 
2.47.0

Re: [PATCH blktests 3/7] nvme: add _setup_nvmet_ns_ana()

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> From: Hannes Reinecke<hare@suse.de>
>
> Add a function to set the ANA groupid for a namespace.
>
> Signed-off-by: Hannes Reinecke<hare@suse.de>
> Signed-off-by: Shin'ichiro Kawasaki<shinichiro.kawasaki@wdc.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

[PATCH blktests 4/7] nvme/rc: add argument '--ports' to _nvmet_target_setup()

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

Add an argument '--ports' to _nvmet_target_setup() to specify the
number of ports to create.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[Shin'ichiro: rebased on the commit e3fe06e and resolved conflicts]
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 common/nvme | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/common/nvme b/common/nvme
index 9786e4e..dfd9876 100644
--- a/common/nvme
+++ b/common/nvme
@@ -798,7 +798,8 @@ _nvmet_target_setup() {
 	local hostkey=""
 	local subsysnqn="${def_subsysnqn}"
 	local subsys_uuid
-	local port
+	local port p
+	local num_ports=1
 	local -a ARGS
 
 	while [[ $# -gt 0 ]]; do
@@ -827,6 +828,10 @@ _nvmet_target_setup() {
 				resv_enable="--resv_enable"
 				shift 1
 				;;
+			--ports)
+				num_ports="$2"
+				shift 2
+				;;
 			*)
 				echo "WARNING: unknown argument: $1"
 				shift
@@ -855,8 +860,12 @@ _nvmet_target_setup() {
 	fi
 	_create_nvmet_subsystem "${ARGS[@]}"
 
-	port="$(_create_nvmet_port)"
-	_add_nvmet_subsys_to_port "${port}" "${subsysnqn}"
+	p=0
+	while (( p < num_ports )); do
+		port="$(_create_nvmet_port)"
+		_add_nvmet_subsys_to_port "${port}" "${subsysnqn}"
+		p=$(( p + 1 ))
+	done
 	_create_nvmet_host "${subsysnqn}" "${def_hostnqn}" \
 			"${hostkey}" "${ctrlkey}"
 }
-- 
2.47.0

Re: [PATCH blktests 4/7] nvme/rc: add argument '--ports' to _nvmet_target_setup()

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> From: Hannes Reinecke<hare@suse.de>
>
> Add an argument '--ports' to _nvmet_target_setup() to specify the
> number of ports to create.
>
> Signed-off-by: Hannes Reinecke<hare@suse.de>
> [Shin'ichiro: rebased on the commit e3fe06e and resolved conflicts]
> Signed-off-by: Shin'ichiro Kawasaki<shinichiro.kawasaki@wdc.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

[PATCH blktests 5/7] nvme: delete all ana_groups when removing a port

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

A port might have several ANA groups, and we have to remove all
ANA groups with a group id other than 1, otherwise we cannot
remove the port itself.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[Shin'ichiro: fixed shellcheck warning]
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 common/nvme | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/common/nvme b/common/nvme
index dfd9876..8bce403 100644
--- a/common/nvme
+++ b/common/nvme
@@ -491,6 +491,8 @@ _setup_nvmet_port_ana() {
 
 _remove_nvmet_port() {
 	local port="$1"
+	local cfsport="${NVMET_CFS}/ports/${port}"
+	local a
 
 	if [[ "${nvme_trtype}" == "fc" ]]; then
 		_nvme_fcloop_del_tport "$(_remote_wwnn "$port")" \
@@ -499,7 +501,11 @@ _remove_nvmet_port() {
 				       "$(_remote_wwnn "$port")" \
 				       "$(_remote_wwpn "$port")"
 	fi
-	rmdir "${NVMET_CFS}/ports/${port}"
+	for a in "${cfsport}/ana_groups/"*; do
+		[[ "${a##*/}" == "1" ]] && continue
+		rmdir "${a}"
+	done
+	rmdir "${cfsport}"
 }
 
 _create_nvmet_ns() {
-- 
2.47.0

Re: [PATCH blktests 5/7] nvme: delete all ana_groups when removing a port

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> From: Hannes Reinecke <hare@suse.de>
>
> A port might have several ANA groups, and we have to remove all
> ANA groups with a group id other than 1, otherwise we cannot
> remove the port itself.
>
> Signed-off-by: Hannes Reinecke <hare@suse.de>
> [Shin'ichiro: fixed shellcheck warning]
> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>

instead of local variable a it could be something meaningful ..
irrespective of that :-

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

> ---
>   common/nvme | 8 +++++++-
>   1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/common/nvme b/common/nvme
> index dfd9876..8bce403 100644
> --- a/common/nvme
> +++ b/common/nvme
> @@ -491,6 +491,8 @@ _setup_nvmet_port_ana() {
>   
>   _remove_nvmet_port() {
>   	local port="$1"
> +	local cfsport="${NVMET_CFS}/ports/${port}"
> +	local a
>   
>   	if [[ "${nvme_trtype}" == "fc" ]]; then
>   		_nvme_fcloop_del_tport "$(_remote_wwnn "$port")" \
> @@ -499,7 +501,11 @@ _remove_nvmet_port() {
>   				       "$(_remote_wwnn "$port")" \
>   				       "$(_remote_wwpn "$port")"
>   	fi
> -	rmdir "${NVMET_CFS}/ports/${port}"
> +	for a in "${cfsport}/ana_groups/"*; do
> +		[[ "${a##*/}" == "1" ]] && continue
> +		rmdir "${a}"
> +	done
> +	rmdir "${cfsport}"
>   }
>   
>   _create_nvmet_ns() {

[PATCH blktests 6/7] test/nvme: add test for basic ANA support

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

Add a test for basic ANA support by creating 4 paths, run a fio
process to generate load, and then switch port states to check
if I/O continues uninterrupted.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[Shin'ichiro: renumbered the test case from 054 to 055]
[Shin'ichiro: fixed a fio option typo]
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 tests/nvme/055     | 97 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/055.out |  5 +++
 2 files changed, 102 insertions(+)
 create mode 100755 tests/nvme/055
 create mode 100644 tests/nvme/055.out

diff --git a/tests/nvme/055 b/tests/nvme/055
new file mode 100755
index 0000000..525193c
--- /dev/null
+++ b/tests/nvme/055
@@ -0,0 +1,97 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2024 Hannes Reinecke (SUSE) <hare@suse.de>
+#
+# Test nvme fabrics controller ANA failover during I/O
+
+. tests/nvme/rc
+
+DESCRIPTION="test nvme fabrics controller ANA failover during I/O"
+
+requires() {
+	_nvme_requires
+	_have_loop
+	_have_fio
+	_require_nvme_trtype_is_fabrics
+}
+
+set_conditions() {
+	_set_nvme_trtype "$@"
+}
+
+failback() {
+	local portno=0
+
+	for port in "$@"; do
+		if (( portno == 0 )); then
+			_setup_nvmet_port_ana "${port}" 1 "optimized"
+		elif (( portno == 1 )); then
+			_setup_nvmet_port_ana "${port}" 1 "non-optimized"
+		else
+			_setup_nvmet_port_ana "${port}" 1 "inaccessible"
+		fi
+		portno=$(( portno + 1 ))
+	done
+}
+
+failover() {
+	local portno=0
+
+	for port in "$@"; do
+		if (( portno == 2 )); then
+			_setup_nvmet_port_ana "${port}" 1 "optimized"
+		elif (( portno == 3 )); then
+			_setup_nvmet_port_ana "${port}" 1 "non-optimized"
+		else
+			_setup_nvmet_port_ana "${port}" 1 "inaccessible"
+		fi
+		portno=$(( portno + 1))
+	done
+}
+
+test() {
+	local fio_pid
+	local -a ports
+	local port
+	local ns
+
+	echo "Running ${TEST_NAME}"
+
+	_setup_nvmet
+
+	_nvmet_target_setup --ports 4
+
+	_get_nvmet_ports "${def_subsysnqn}" ports
+	failback "${ports[@]}"
+
+	for port in "${ports[@]}"; do
+		_nvme_connect_subsys --port "${port}"
+	done
+
+	# start fio job
+	ns=$(_find_nvme_ns "$def_subsys_uuid")
+	_run_fio_verify_io --filename="/dev/${ns}" \
+			   --group_reporting --ramp_time=5 \
+			   --time_based --runtime=1m &> "$FULL" &
+	fio_pid=$!
+	sleep 5
+
+	# switch port status
+	echo "ANA failover"
+	failover "${ports[@]}"
+
+	sleep 10
+
+	# switch back to original state
+	echo "ANA failback"
+	failback "${ports[@]}"
+
+	sleep 10
+
+	{ kill "${fio_pid}"; wait; } &> /dev/null
+
+	_nvme_disconnect_subsys
+	_nvmet_target_cleanup
+
+	echo "Test complete"
+}
diff --git a/tests/nvme/055.out b/tests/nvme/055.out
new file mode 100644
index 0000000..9937d40
--- /dev/null
+++ b/tests/nvme/055.out
@@ -0,0 +1,5 @@
+Running nvme/055
+ANA failover
+ANA failback
+disconnected 4 controller(s)
+Test complete
-- 
2.47.0

Re: [PATCH blktests 6/7] test/nvme: add test for basic ANA support

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> From: Hannes Reinecke<hare@suse.de>
>
> Add a test for basic ANA support by creating 4 paths, run a fio
> process to generate load, and then switch port states to check
> if I/O continues uninterrupted.
>
> Signed-off-by: Hannes Reinecke<hare@suse.de>
> [Shin'ichiro: renumbered the test case from 054 to 055]
> [Shin'ichiro: fixed a fio option typo]
> Signed-off-by: Shin'ichiro Kawasaki<shinichiro.kawasaki@wdc.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

[PATCH blktests 7/7] test/nvme: add test for rapid namespace remapping

[Shin'ichiro Kawasaki]

From: Hannes Reinecke <hare@suse.de>

Add a test for rapid namespace remapping to simulate short-lived
namespaces being created and deleted in rapid succession with a
cluster.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[Shin'ichiro: renumbered the test case from 055 to 056]
[Shin'ichiro: use for loop instead of seq per style guideline]
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
---
 tests/nvme/056     | 105 +++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/056.out |  14 ++++++
 tests/nvme/rc      |  31 +++++++++++++
 3 files changed, 150 insertions(+)
 create mode 100755 tests/nvme/056
 create mode 100644 tests/nvme/056.out

diff --git a/tests/nvme/056 b/tests/nvme/056
new file mode 100755
index 0000000..d230a21
--- /dev/null
+++ b/tests/nvme/056
@@ -0,0 +1,105 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2024 Hannes Reinecke (SUSE) <hare@suse.de>
+#
+# Test rapid remapping of namespaces
+
+. tests/nvme/rc
+
+DESCRIPTION="test rapid namespace remapping"
+
+requires() {
+	_nvme_requires
+	_have_loop
+	_require_nvme_trtype_is_fabrics
+}
+
+set_conditions() {
+	_set_nvme_trtype "$@"
+}
+
+_setup_ana() {
+	local portno=0
+
+	for port in "$@"; do
+		if (( portno == 0 )); then
+			_setup_nvmet_port_ana "${port}" 1 "optimized"
+			_setup_nvmet_port_ana "${port}" 2 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 3 "inaccessible"
+		elif (( portno == 1 )); then
+			_setup_nvmet_port_ana "${port}" 1 "non-optimized"
+			_setup_nvmet_port_ana "${port}" 2 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 3 "inaccessible"
+		elif (( portno == 2 )); then
+			_setup_nvmet_port_ana "${port}" 1 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 2 "optimized"
+			_setup_nvmet_port_ana "${port}" 3 "inaccessible"
+		elif (( portno == 3 )); then
+			_setup_nvmet_port_ana "${port}" 1 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 2 "non-optimized"
+			_setup_nvmet_port_ana "${port}" 3 "inaccessible"
+		elif (( portno == 4 )); then
+			_setup_nvmet_port_ana "${port}" 1 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 2 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 3 "optimized"
+		else
+			_setup_nvmet_port_ana "${port}" 1 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 2 "inaccessible"
+			_setup_nvmet_port_ana "${port}" 3 "non-optimized"
+		fi
+		portno=$(( portno + 1 ))
+	done
+}
+
+test() {
+	echo "Running ${TEST_NAME}"
+
+	_setup_nvmet
+
+	local d i n port
+	local -a ports
+	local num_namespaces=3
+
+	_nvmet_target_setup --ports 6 --blkdev none
+
+	for ((d = 1; d <= num_namespaces; d++)); do
+		local file_path
+		local blkdev
+		local uuid
+
+		file_path="${TMPDIR}/img${d}"
+		truncate -s "${NVME_IMG_SIZE}" "${file_path}"
+		blkdev="$(losetup -f --show "${file_path}")"
+		uuid="$(uuidgen)"
+		_create_nvmet_ns --nsid "${d}" --blkdev "${blkdev}" \
+				 --uuid "${uuid}" --grpid "${d}" > /dev/null
+	done
+
+	_get_nvmet_ports "${def_subsysnqn}" ports
+	_setup_ana "${ports[@]}"
+
+	for port in "${ports[@]}"; do
+		_nvme_connect_subsys --port "${port}"
+	done
+
+	# Simulate unmap on one cluster node and remap to anther one
+	for ((i = 0; i <= 10; i++)); do
+		echo "Remap namespace #${i}"
+		grpid=$(( (i % 3) + 1 ))
+		for n in $(seq 1 "${num_namespaces}" | shuf); do
+			_disable_nvmet_ns "${n}"
+		done
+		for n in $(seq 1 "${num_namespaces}" | shuf); do
+			local uuid
+
+			uuid=$(uuidgen)
+			_set_nvmet_ns_uuid "${n}" "${uuid}"
+			_enable_nvmet_ns "${n}"
+		done
+	done
+
+	_nvme_disconnect_subsys
+	_nvmet_target_cleanup
+
+	echo "Test complete"
+}
diff --git a/tests/nvme/056.out b/tests/nvme/056.out
new file mode 100644
index 0000000..cdc3e55
--- /dev/null
+++ b/tests/nvme/056.out
@@ -0,0 +1,14 @@
+Running nvme/056
+Remap namespace #0
+Remap namespace #1
+Remap namespace #2
+Remap namespace #3
+Remap namespace #4
+Remap namespace #5
+Remap namespace #6
+Remap namespace #7
+Remap namespace #8
+Remap namespace #9
+Remap namespace #10
+disconnected 6 controller(s)
+Test complete
diff --git a/tests/nvme/rc b/tests/nvme/rc
index d63afd1..2ddc6bc 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -307,6 +307,37 @@ _set_nvmet_dhgroup() {
 	     "${cfs_path}/dhchap_dhgroup"
 }
 
+_enable_nvmet_ns() {
+	local subsysnqn="${def_subsysnqn}"
+	local nsid="${1:-1}"
+
+	cfs_path="${NVMET_CFS}/subsystems/${subsysnqn}"
+	ns_path="${cfs_path}/namespaces/${nsid}"
+
+	echo 1 > "${ns_path}/enable"
+}
+
+_disable_nvmet_ns() {
+	local subsysnqn="${def_subsysnqn}"
+	local nsid="${1:-1}"
+
+	cfs_path="${NVMET_CFS}/subsystems/${subsysnqn}"
+	ns_path="${cfs_path}/namespaces/${nsid}"
+
+	echo 0 > "${ns_path}/enable"
+}
+
+_set_nvmet_ns_uuid() {
+	local subsysnqn="${def_subsysnqn}"
+	local nsid="${1:-1}"
+	local uuid="${2:-$(uuidgen)}"
+
+	cfs_path="${NVMET_CFS}/subsystems/${subsysnqn}"
+	ns_path="${cfs_path}/namespaces/${nsid}"
+
+	printf "%s" "${uuid}" > "${ns_path}/device_uuid"
+}
+
 _find_nvme_passthru_loop_dev() {
 	local subsys=$1
 	local nsid
-- 
2.47.0

Re: [PATCH blktests 7/7] test/nvme: add test for rapid namespace remapping

[Chaitanya Kulkarni]

On 11/29/24 05:26, Shin'ichiro Kawasaki wrote:
> From: Hannes Reinecke<hare@suse.de>
>
> Add a test for rapid namespace remapping to simulate short-lived
> namespaces being created and deleted in rapid succession with a
> cluster.
>
> Signed-off-by: Hannes Reinecke<hare@suse.de>
> [Shin'ichiro: renumbered the test case from 055 to 056]
> [Shin'ichiro: use for loop instead of seq per style guideline]
> Signed-off-by: Shin'ichiro Kawasaki<shinichiro.kawasaki@wdc.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck

Re: [PATCH blktests 0/7] nvme: add test cases for ANA support

[Shinichiro Kawasaki]

On Nov 29, 2024 / 22:26, Shin'ichiro Kawasaki wrote:
> Hannes reworked the nvme test group scripts to support ANA, or Asymmetric
> Namespace Access. This work is tracked with GitHub PR 146 [1]. The amount of
> change is large, then I split them into a few series for easier review. This is
> the last series, which follows the second series [2] and a follow-up fix [3].
> 
> The first 6 patches in this series prepare for the new test case addition. The
> 7th patch add the test case for basic ANA support. The last patch add the other
> test case for rapid namespace remapping.
> 
>   [1] https://github.com/osandov/blktests/pull/146
>   [2] https://lore.kernel.org/linux-nvme/20241107111354.80606-1-shinichiro.kawasaki@wdc.com/
>   [3] https://lore.kernel.org/linux-nvme/20241120102051.247995-1-shinichiro.kawasaki@wdc.com/
> 
> Hannes Reinecke (7):
>   nvme/031: open-code helper functions
>   nvme: add _setup_nvmet_port_ana()
>   nvme: add _setup_nvmet_ns_ana()
>   nvme/rc: add argument '--ports' to _nvmet_target_setup()
>   nvme: delete all ana_groups when removing a port
>   test/nvme: add test for basic ANA support
>   test/nvme: add test for rapid namespace remapping

FYI, I applied the series, except the first patch. Of note is that the two new
test cases are renumbered to nvme/057 and 058. As for the first patch, I
remembered that it needs more work per discussion in the previous series [X]. I
included it again in this series by mistake.

Hannes, thank you for this contribution :)

[X] https://lore.kernel.org/linux-nvme/07ba0b79-1438-4068-a901-18d5713d52f2@suse.de/