netdev - [PATCH net-next v1 6/7] selftests/net: add LOCAL_PREFIX

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Message-ID: <20251120033016.3809474-7-dw@davidwei.uk>
Date: Wed, 19 Nov 2025 19:30:15 -0800
From: David Wei <dw@...idwei.uk>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH net-next v1 6/7] selftests/net: add LOCAL_PREFIX_V{4,6} env to HW selftests

Expect netkit container datapath selftests to have a publicly routable
IP prefix to assign to netkit in a container, such that packets will
land on eth0. The bpf skb forward program will then forward such packets
from the host netns to the container netns.

Signed-off-by: David Wei <dw@...idwei.uk>
---
 tools/testing/selftests/drivers/net/README.rst    | 6 ++++++
 tools/testing/selftests/drivers/net/lib/py/env.py | 1 +
 2 files changed, 7 insertions(+)

diff --git a/tools/testing/selftests/drivers/net/README.rst b/tools/testing/selftests/drivers/net/README.rst
index eb838ae94844..ea2d3538e228 100644
--- a/tools/testing/selftests/drivers/net/README.rst
+++ b/tools/testing/selftests/drivers/net/README.rst
@@ -62,6 +62,12 @@ LOCAL_V4, LOCAL_V6, REMOTE_V4, REMOTE_V6
 
 Local and remote endpoint IP addresses.
 
+LOCAL_PREFIX_V6, LOCAL_PREFIX_V6
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Local IP prefix that is publicly routable. Devices assigned with an address
+using this prefix can directly receive packets from a remote.
+
 REMOTE_TYPE
 ~~~~~~~~~~~
 
diff --git a/tools/testing/selftests/drivers/net/lib/py/env.py b/tools/testing/selftests/drivers/net/lib/py/env.py
index 3e19b57ef5e0..ee427c2b2647 100644
--- a/tools/testing/selftests/drivers/net/lib/py/env.py
+++ b/tools/testing/selftests/drivers/net/lib/py/env.py
@@ -196,6 +196,7 @@ class NetDrvEpEnv(NetDrvEnvBase):
     def _check_env(self):
         vars_needed = [
             ["LOCAL_V4", "LOCAL_V6"],
+            ["LOCAL_PREFIX_V4", "LOCAL_PREFIX_V6"],
             ["REMOTE_V4", "REMOTE_V6"],
             ["REMOTE_TYPE"],
             ["REMOTE_ARGS"]
-- 
2.47.3