netdev - [PATCH net-next v2] selftests: drv-net: rss_input_xfrm: Check test prerequisites before running

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Message-ID: <20250430054801.750646-1-gal@nvidia.com>
Date: Wed, 30 Apr 2025 08:48:01 +0300
From: Gal Pressman <gal@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, Andrew Lunn <andrew+netdev@...n.ch>,
	<netdev@...r.kernel.org>
CC: Shuah Khan <shuah@...nel.org>, <linux-kselftest@...r.kernel.org>, "Gal
 Pressman" <gal@...dia.com>, Nimrod Oren <noren@...dia.com>
Subject: [PATCH net-next v2] selftests: drv-net: rss_input_xfrm: Check test prerequisites before running

Ensure the following prerequisites before executing the test:
1. 'socat' is installed on the remote host.
2. Python version supports socket.SO_INCOMING_CPU (available since v3.11).

Skip the test if either prerequisite is not met.

Reviewed-by: Nimrod Oren <noren@...dia.com>
Signed-off-by: Gal Pressman <gal@...dia.com>
---
Changelog -
v1->v2: https://lore.kernel.org/netdev/20250317123149.364565-1-gal@nvidia.com/
* Use require_cmd() helper (Jakub).
---
 tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py b/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py
index 53bb08cc29ec..f439c434ba36 100755
--- a/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py
+++ b/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py
@@ -32,6 +32,11 @@ def test_rss_input_xfrm(cfg, ipver):
     if multiprocessing.cpu_count() < 2:
         raise KsftSkipEx("Need at least two CPUs to test symmetric RSS hash")
 
+    cfg.require_cmd("socat", remote=True)
+
+    if not hasattr(socket, "SO_INCOMING_CPU"):
+        raise KsftSkipEx("socket.SO_INCOMING_CPU was added in Python 3.11")
+
     input_xfrm = cfg.ethnl.rss_get(
         {'header': {'dev-name': cfg.ifname}}).get('input_xfrm')
 
-- 
2.40.1