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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-01-25 14:00:52 -0800
committerDavid S. Miller <davem@davemloft.net>2018-01-25 21:23:09 -0500
commit2fb89a38d35bb6c935edb819d9096de455ce87cf (patch)
tree1bd48083428c6592ecf9742bded5ce3b610c20f4 /tools
parent15f4edb3d9c60a0934b133aae9c915807138cb4d (diff)
downloadlinux-2fb89a38d35bb6c935edb819d9096de455ce87cf.tar.bz2
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 <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
-rwxr-xr-xtools/testing/selftests/bpf/test_offload.py27
1 files changed, 27 insertions, 0 deletions
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...")