netdev - [PATCH net-next 2/5] selftests: drv-net: psp: add assertions on core-tracked psp dev stats

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Message-ID: <20251022193739.1376320-3-daniel.zahka@gmail.com>
Date: Wed, 22 Oct 2025 12:37:34 -0700
From: Daniel Zahka <daniel.zahka@...il.com>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>,
	Shuah Khan <shuah@...nel.org>
Cc: Simon Horman <horms@...nel.org>,
	Donald Hunter <donald.hunter@...il.com>,
	Boris Pismenny <borisp@...dia.com>,
	Mark Bloch <mbloch@...dia.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Willem de Bruijn <willemb@...gle.com>,
	Rahul Rameshbabu <rrameshbabu@...dia.com>,
	Cosmin Ratiu <cratiu@...dia.com>,
	Raed Salem <raeds@...dia.com>,
	Kuniyuki Iwashima <kuniyu@...gle.com>,
	netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org
Subject: [PATCH net-next 2/5] selftests: drv-net: psp: add assertions on core-tracked psp dev stats

Add assertions to existing test cases to cover key rotations and
'stale-events'.

Signed-off-by: Daniel Zahka <daniel.zahka@...il.com>
---
 tools/testing/selftests/drivers/net/psp.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/testing/selftests/drivers/net/psp.py b/tools/testing/selftests/drivers/net/psp.py
index 4ae7a785ff10..06559ef49b9a 100755
--- a/tools/testing/selftests/drivers/net/psp.py
+++ b/tools/testing/selftests/drivers/net/psp.py
@@ -109,6 +109,10 @@ def _check_data_outq(s, exp_len, force_wait=False):
         time.sleep(0.01)
     ksft_eq(outq, exp_len)
 
+
+def _get_stat(cfg, key):
+    return cfg.pspnl.get_stats({'dev-id': cfg.psp_dev_id})[key]
+
 #
 # Test case boiler plate
 #
@@ -171,11 +175,16 @@ def dev_rotate(cfg):
     """ Test key rotation """
     _init_psp_dev(cfg)
 
+    prev_rotations = _get_stat(cfg, 'key-rotations')
+
     rot = cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
     ksft_eq(rot['id'], cfg.psp_dev_id)
     rot = cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
     ksft_eq(rot['id'], cfg.psp_dev_id)
 
+    cur_rotations = _get_stat(cfg, 'key-rotations')
+    ksft_eq(cur_rotations, prev_rotations + 2)
+
 
 def dev_rotate_spi(cfg):
     """ Test key rotation and SPI check """
@@ -475,6 +484,7 @@ def data_stale_key(cfg):
     """ Test send on a double-rotated key """
     _init_psp_dev(cfg)
 
+    prev_stale = _get_stat(cfg, 'stale-events')
     s = _make_psp_conn(cfg)
     try:
         rx_assoc = cfg.pspnl.rx_assoc({"version": 0,
@@ -495,6 +505,9 @@ def data_stale_key(cfg):
         cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
         cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
 
+        cur_stale = _get_stat(cfg, 'stale-events')
+        ksft_gt(cur_stale, prev_stale)
+
         s.send(b'0123456789' * 200)
         _check_data_outq(s, 2000, force_wait=True)
     finally:
-- 
2.47.3