selftests: drv-net: so_txtime: check IP versions

This test needs more work, and it fails in non-obvious way
when IPv4 connectivity is not available:

  # Exception| CMD[remote]: /tmp/vjquwblf/gukinuzqso_txtime -4 -c mono -t 1780939014114542914 -S None -D None a,0 -r
  # Exception|   EXIT: -15

Explicitly check for IPv4 support to make the future triage
less painful.

Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260609180803.1093428-3-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/tools/testing/selftests/drivers/net/so_txtime.py b/tools/testing/selftests/drivers/net/so_txtime.py
index abdd2371cc1a82a653c0d64ace766227e12d2716..adf6c848d6d80f88959f8f9adb880dd05f75bb9d 100755 (executable)
--- a/tools/testing/selftests/drivers/net/so_txtime.py
+++ b/tools/testing/selftests/drivers/net/so_txtime.py
@@ -64,6 +64,7 @@ def _test_variants_fq():
 @ksft_variants(_test_variants_fq())
 def test_so_txtime_fq_mono(cfg, ipver, args_tx, args_rx):
     """Run all variants of monotonic (fq) tests."""
+    cfg.require_ipver(ipver)
     _qdisc_setup(cfg.ifname, "fq")
     test_so_txtime(cfg, "mono", ipver, args_tx, args_rx, True)
 
@@ -71,6 +72,7 @@ def test_so_txtime_fq_mono(cfg, ipver, args_tx, args_rx):
 @ksft_variants(_test_variants_fq())
 def test_so_txtime_fq_tai(cfg, ipver, args_tx, args_rx):
     """Run all variants of fq tests, but pass CLOCK_TAI to test conversion."""
+    cfg.require_ipver(ipver)
     _qdisc_setup(cfg.ifname, "fq")
     test_so_txtime(cfg, "tai", ipver, args_tx, args_rx, True)
 
@@ -93,6 +95,7 @@ def _test_variants_etf():
 @ksft_variants(_test_variants_etf())
 def test_so_txtime_etf(cfg, ipver, args_tx, args_rx, expect_fail):
     """Run all variants of etf tests."""
+    cfg.require_ipver(ipver)
     try:
         _qdisc_setup(cfg.ifname, "etf", "clockid CLOCK_TAI delta 400000")
     except Exception as e: