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selftests: mlxsw: Test vetoing of double sampling

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Test that two sampling rules cannot be configured on the same port with
the same trigger.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2021-03-29 13:09:48 +03:00 committed by David S. Miller
parent 17b96a5cbe
commit 7ede22e658
1 changed files with 30 additions and 0 deletions
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30
tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh
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@ -34,6 +34,7 @@ lib_dir=$(dirname $0)/../../../net/forwarding
ALL_TESTS="
tc_sample_rate_test
tc_sample_max_rate_test
tc_sample_conflict_test
tc_sample_group_conflict_test
tc_sample_md_iif_test
tc_sample_md_lag_iif_test
@ -272,6 +273,35 @@ tc_sample_max_rate_test()
log_test "tc sample maximum rate"
}
tc_sample_conflict_test()
{
RET=0
# Test that two sampling rules cannot be configured on the same port,
# even when they share the same parameters.
tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
skip_sw action sample rate 1024 group 1
check_err $? "Failed to configure sampling rule"
tc filter add dev $rp1 ingress protocol all pref 2 handle 102 matchall \
skip_sw action sample rate 1024 group 1 &> /dev/null
check_fail $? "Managed to configure second sampling rule"
# Delete the first rule and make sure the second rule can now be
# configured.
tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
tc filter add dev $rp1 ingress protocol all pref 2 handle 102 matchall \
skip_sw action sample rate 1024 group 1
check_err $? "Failed to configure sampling rule after deletion"
log_test "tc sample conflict test"
tc filter del dev $rp1 ingress protocol all pref 2 handle 102 matchall
}
tc_sample_group_conflict_test()
{
RET=0