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Message-ID: <20250927225420.1443468-3-kuba@kernel.org>
Date: Sat, 27 Sep 2025 15:54:14 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
pabeni@...hat.com,
andrew+netdev@...n.ch,
horms@...nel.org,
petrm@...dia.com,
willemb@...gle.com,
shuah@...nel.org,
daniel.zahka@...il.com,
linux-kselftest@...r.kernel.org,
Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v3 2/8] selftests: drv-net: base device access API test
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>
---
v3:
- rework the skipping logic, move to a helper run in each test
---
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 | 83 +++++++++++++++++++
.../testing/selftests/net/lib/py/__init__.py | 2 +-
tools/testing/selftests/net/lib/py/ynl.py | 5 ++
7 files changed, 93 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 f51b77cd0219..601431248d5b 100644
--- a/tools/testing/selftests/drivers/net/config
+++ b/tools/testing/selftests/drivers/net/config
@@ -1,6 +1,7 @@
CONFIG_CONFIGFS_FS=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_DEBUG_INFO_BTF_MODULES=n
+CONFIG_INET_PSP=y
CONFIG_IPV6=y
CONFIG_NETDEVSIM=m
CONFIG_NETCONSOLE=m
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 @@ KSFT_DIR = (Path(__file__).parent / "../../../../..").resolve()
# 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 @@ KSFT_DIR = (Path(__file__).parent / "../../../..").resolve()
# 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..5910222a43ef
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/psp.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""Test suite for PSP capable drivers."""
+
+import errno
+
+from lib.py import defer
+from lib.py import ksft_run, ksft_exit
+from lib.py import ksft_true, ksft_eq
+from lib.py import KsftSkipEx
+from lib.py import NetDrvEpEnv, PSPFamily, NlError
+
+#
+# Test case boiler plate
+#
+
+def _init_psp_dev(cfg):
+ if not hasattr(cfg, 'psp_dev_id'):
+ # Figure out which local device we are testing against
+ for dev in cfg.pspnl.dev_get({}, dump=True):
+ if dev['ifindex'] == cfg.ifindex:
+ cfg.psp_info = dev
+ cfg.psp_dev_id = cfg.psp_info['id']
+ break
+ else:
+ raise KsftSkipEx("No PSP devices found")
+
+ # Enable PSP if necessary
+ cap = cfg.psp_info['psp-versions-cap']
+ ena = cfg.psp_info['psp-versions-ena']
+ if cap != ena:
+ cfg.pspnl.dev_set({'id': cfg.psp_dev_id, 'psp-versions-ena': cap})
+ defer(cfg.pspnl.dev_set, {'id': cfg.psp_dev_id,
+ 'psp-versions-ena': ena })
+
+#
+# Test cases
+#
+
+def dev_list_devices(cfg):
+ """ Dump all devices """
+ _init_psp_dev(cfg)
+
+ 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 """
+ _init_psp_dev(cfg)
+
+ 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': 1234567})
+ except NlError as e:
+ ksft_eq(e.nl_msg.error, -errno.ENODEV)
+ raised = True
+ ksft_true(raised)
+
+
+def main() -> None:
+ """ Ksft boiler plate main """
+
+ with NetDrvEpEnv(__file__) as cfg:
+ cfg.pspnl = PSPFamily()
+
+ ksft_run(globs=globals(), case_pfx={"dev_",}, args=(cfg, ))
+ 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 @@ from .ksft import ksft_pr, ktap_result
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)
--
2.51.0
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