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selftests/bpf: check for spurious extacks from the driver

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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 <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2018-01-25 14:00:52 -08:00 committed by David S. Miller
parent 15f4edb3d9
commit 2fb89a38d3
1 changed files with 27 additions and 0 deletions
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27
tools/testing/selftests/bpf/test_offload.py
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@ -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...")