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Message-ID: <20250925211647.3450332-3-daniel.zahka@gmail.com>
Date: Thu, 25 Sep 2025 14:16:38 -0700
From: Daniel Zahka <daniel.zahka@...il.com>
To: Jakub Kicinski <kuba@...nel.org>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
Simon Horman <horms@...nel.org>,
Shuah Khan <shuah@...nel.org>
Cc: Willem de Bruijn <willemb@...gle.com>,
Breno Leitao <leitao@...ian.org>,
Petr Machata <petrm@...dia.com>,
Yuyang Huang <yuyanghuang@...gle.com>,
Xiao Liang <shaw.leon@...il.com>,
Carolina Jubran <cjubran@...dia.com>,
Donald Hunter <donald.hunter@...il.com>,
netdev@...r.kernel.org,
linux-kselftest@...r.kernel.org
Subject: [PATCH net-next v2 2/8] selftests: drv-net: base device access API test
From: Jakub Kicinski <kuba@...nel.org>
Simple PSP test to getting info about PSP devices.
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Daniel Zahka <daniel.zahka@...il.com>
---
Notes:
v2:
- insert CONFIG_INET_PSP in alphebetical order
- use branch to skip all tests
tools/testing/selftests/drivers/net/Makefile | 1 +
tools/testing/selftests/drivers/net/config | 1 +
.../drivers/net/hw/lib/py/__init__.py | 2 +-
.../selftests/drivers/net/lib/py/__init__.py | 2 +-
tools/testing/selftests/drivers/net/psp.py | 70 +++++++++++++++++++
.../testing/selftests/net/lib/py/__init__.py | 2 +-
tools/testing/selftests/net/lib/py/ynl.py | 5 ++
7 files changed, 80 insertions(+), 3 deletions(-)
create mode 100755 tools/testing/selftests/drivers/net/psp.py
diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile
index 984ece05f7f9..102cfb36846c 100644
--- a/tools/testing/selftests/drivers/net/Makefile
+++ b/tools/testing/selftests/drivers/net/Makefile
@@ -19,6 +19,7 @@ TEST_PROGS := \
netcons_sysdata.sh \
netpoll_basic.py \
ping.py \
+ psp.py \
queues.py \
stats.py \
shaper.py \
diff --git a/tools/testing/selftests/drivers/net/config b/tools/testing/selftests/drivers/net/config
index f27172ddee0a..af866befa33e 100644
--- a/tools/testing/selftests/drivers/net/config
+++ b/tools/testing/selftests/drivers/net/config
@@ -1,3 +1,4 @@
+CONFIG_INET_PSP=y
CONFIG_IPV6=y
CONFIG_NETDEVSIM=m
CONFIG_CONFIGFS_FS=y
diff --git a/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py b/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py
index 1462a339a74b..559c572e296a 100644
--- a/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py
+++ b/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py
@@ -13,7 +13,7 @@ try:
# Import one by one to avoid pylint false positives
from net.lib.py import EthtoolFamily, NetdevFamily, NetshaperFamily, \
- NlError, RtnlFamily, DevlinkFamily
+ NlError, RtnlFamily, DevlinkFamily, PSPFamily
from net.lib.py import CmdExitFailure
from net.lib.py import bkg, cmd, defer, ethtool, fd_read_timeout, ip, \
rand_port, tool, wait_port_listen
diff --git a/tools/testing/selftests/drivers/net/lib/py/__init__.py b/tools/testing/selftests/drivers/net/lib/py/__init__.py
index a07b56a75c8a..31ecc618050c 100644
--- a/tools/testing/selftests/drivers/net/lib/py/__init__.py
+++ b/tools/testing/selftests/drivers/net/lib/py/__init__.py
@@ -12,7 +12,7 @@ try:
# Import one by one to avoid pylint false positives
from net.lib.py import EthtoolFamily, NetdevFamily, NetshaperFamily, \
- NlError, RtnlFamily, DevlinkFamily
+ NlError, RtnlFamily, DevlinkFamily, PSPFamily
from net.lib.py import CmdExitFailure
from net.lib.py import bkg, cmd, bpftool, bpftrace, defer, ethtool, \
fd_read_timeout, ip, rand_port, tool, wait_port_listen, wait_file
diff --git a/tools/testing/selftests/drivers/net/psp.py b/tools/testing/selftests/drivers/net/psp.py
new file mode 100755
index 000000000000..43dfa497be9b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/psp.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""Test suite for PSP capable drivers."""
+
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import ksft_true, ksft_eq
+from lib.py import NetDrvEpEnv, PSPFamily, NlError
+
+#
+# Test cases
+#
+
+def dev_list_devices(cfg):
+ """ Dump all devices """
+ devices = cfg.pspnl.dev_get({}, dump=True)
+
+ found = False
+ for dev in devices:
+ found |= dev['id'] == cfg.psp_dev_id
+ ksft_true(found)
+
+
+def dev_get_device(cfg):
+ """ Get the device we intend to use """
+ dev = cfg.pspnl.dev_get({'id': cfg.psp_dev_id})
+ ksft_eq(dev['id'], cfg.psp_dev_id)
+
+
+def dev_get_device_bad(cfg):
+ """ Test getting device which doesn't exist """
+ raised = False
+ try:
+ cfg.pspnl.dev_get({'id': cfg.psp_dev_id + 1234567})
+ except NlError as e:
+ ksft_eq(e.nl_msg.error, -19)
+ raised = True
+ ksft_true(raised)
+
+
+def main() -> None:
+ with NetDrvEpEnv(__file__) as cfg:
+ cfg.pspnl = PSPFamily()
+
+ # Figure out which local device we are testing against
+ cfg.psp_dev_id = None
+ versions = None
+ devs = [dev for dev in cfg.pspnl.dev_get({}, dump=True) if dev["ifindex"] == cfg.ifindex]
+ if devs:
+ info = devs[0]
+ cfg.psp_dev_id = info['id']
+
+ # Enable PSP if necessary
+ if info['psp-versions-ena'] != info['psp-versions-cap']:
+ versions = info['psp-versions-ena']
+ cfg.pspnl.dev_set({"id": cfg.psp_dev_id,
+ "psp-versions-ena": info['psp-versions-cap']})
+
+ if cfg.psp_dev_id is not None:
+ ksft_run(globs=globals(), case_pfx={"dev_",}, args=(cfg, ))
+ else:
+ ksft_pr("No PSP device found, skipping all tests")
+
+ if versions is not None:
+ cfg.pspnl.dev_set({"id": cfg.psp_dev_id, "psp-versions-ena": versions})
+ ksft_exit()
+
+
+if __name__ == "__main__":
+ main()
diff --git a/tools/testing/selftests/net/lib/py/__init__.py b/tools/testing/selftests/net/lib/py/__init__.py
index 02be28dcc089..997b85cc216a 100644
--- a/tools/testing/selftests/net/lib/py/__init__.py
+++ b/tools/testing/selftests/net/lib/py/__init__.py
@@ -6,4 +6,4 @@ from .netns import NetNS, NetNSEnter
from .nsim import *
from .utils import *
from .ynl import NlError, YnlFamily, EthtoolFamily, NetdevFamily, RtnlFamily, RtnlAddrFamily
-from .ynl import NetshaperFamily, DevlinkFamily
+from .ynl import NetshaperFamily, DevlinkFamily, PSPFamily
diff --git a/tools/testing/selftests/net/lib/py/ynl.py b/tools/testing/selftests/net/lib/py/ynl.py
index 2b3a61ea3bfa..32c223e93b2c 100644
--- a/tools/testing/selftests/net/lib/py/ynl.py
+++ b/tools/testing/selftests/net/lib/py/ynl.py
@@ -61,3 +61,8 @@ class DevlinkFamily(YnlFamily):
def __init__(self, recv_size=0):
super().__init__((SPEC_PATH / Path('devlink.yaml')).as_posix(),
schema='', recv_size=recv_size)
+
+class PSPFamily(YnlFamily):
+ def __init__(self, recv_size=0):
+ super().__init__((SPEC_PATH / Path('psp.yaml')).as_posix(),
+ schema='', recv_size=recv_size)
--
2.47.3
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