[PATCH net-next 0/2] selftests: drv-net: run XDP tests with both IP versions

[Nimrod Oren <noren@nvidia.com>]

The driver selftest environment picks a single address family for tests
which use the generic address fields. When both IPv4 and IPv6 are
available it prefers IPv6, which can leave IPv4 paths untested and hide
IPv4-only bugs.

This happened recently in the XDP selftest, where an IPv4 checksum bug
was missed when IPv6 was also configured. XDP traffic handling has
IP-version-specific code paths, and the follow-up discussion concluded
that the XDP tests should run against both IP versions [1].

This series changes NetDrvEpEnv from exposing only the initially selected
address family to allowing tests to switch the generic address fields
between IP versions. xdp.py uses this to run the XDP traffic cases over
both IPv4 and IPv6. Test variants whose required IP version is not
configured are skipped.

[1] https://lore.kernel.org/20260518143138.74839bf9@kernel.org/

Nimrod Oren (2):
  selftests: drv-net: allow switching env IP version
  selftests: drv-net: xdp: run with both IP versions

 .../selftests/drivers/net/lib/py/env.py       | 27 ++++--
 tools/testing/selftests/drivers/net/xdp.py    | 94 +++++++++++++++----
 2 files changed, 97 insertions(+), 24 deletions(-)

-- 
2.45.0