From 2fb89a38d35bb6c935edb819d9096de455ce87cf Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Thu, 25 Jan 2018 14:00:52 -0800 Subject: [PATCH] selftests/bpf: check for spurious extacks from the driver Drivers should not report errors when offload is not forced. Check stdout and stderr for familiar messages when with no skip flags and with skip_hw. Check for add, replace, and destroy. Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Signed-off-by: David S. Miller --- tools/testing/selftests/bpf/test_offload.py | 27 +++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py index ae3eea3ab820..49f5ceeabfa6 100755 --- a/tools/testing/selftests/bpf/test_offload.py +++ b/tools/testing/selftests/bpf/test_offload.py @@ -543,6 +543,10 @@ def check_extack(output, reference, args): def check_extack_nsim(output, reference, args): check_extack(output, "Error: netdevsim: " + reference, args) +def check_no_extack(res, needle): + fail((res[1] + res[2]).count(needle) or (res[1] + res[2]).count("Warning:"), + "Found '%s' in command output, leaky extack?" % (needle)) + def check_verifier_log(output, reference): lines = output.split("\n") for l in reversed(lines): @@ -550,6 +554,18 @@ def check_verifier_log(output, reference): return fail(True, "Missing or incorrect message from netdevsim in verifier log") +def test_spurios_extack(sim, obj, skip_hw, needle): + res = sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=skip_hw, + include_stderr=True) + check_no_extack(res, needle) + res = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, + skip_hw=skip_hw, include_stderr=True) + check_no_extack(res, needle) + res = sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf", + include_stderr=True) + check_no_extack(res, needle) + + # Parse command line parser = argparse.ArgumentParser() parser.add_argument("--log", help="output verbose log to given file") @@ -687,6 +703,17 @@ try: (j)) sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") + start_test("Test spurious extack from the driver...") + test_spurios_extack(sim, obj, False, "netdevsim") + test_spurios_extack(sim, obj, True, "netdevsim") + + sim.set_ethtool_tc_offloads(False) + + test_spurios_extack(sim, obj, False, "TC offload is disabled") + test_spurios_extack(sim, obj, True, "TC offload is disabled") + + sim.set_ethtool_tc_offloads(True) + sim.tc_flush_filters() start_test("Test TC offloads work...") -- 2.20.1