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selftests: mlxsw: tc_restrictions: Test tc-police restrictions

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Test that upper and lower limits on rate and burst size imposed by the
device are rejected by the kernel.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ido Schimmel 2020-07-15 11:27:31 +03:00 committed by Jakub Kicinski
parent afe231d32e
commit cb12d17632
1 changed files with 76 additions and 0 deletions
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76
tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
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@ -11,6 +11,8 @@ ALL_TESTS="
matchall_mirror_behind_flower_ingress_test
matchall_sample_behind_flower_ingress_test
matchall_mirror_behind_flower_egress_test
police_limits_test
multi_police_test
"
NUM_NETIFS=2
@ -287,6 +289,80 @@ matchall_mirror_behind_flower_egress_test()
matchall_behind_flower_egress_test "mirror" "mirred egress mirror dev $swp2"
}
police_limits_test()
{
RET=0
tc qdisc add dev $swp1 clsact
tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
flower skip_sw \
action police rate 0.5kbit burst 1m conform-exceed drop/ok
check_fail $? "Incorrect success to add police action with too low rate"
tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
flower skip_sw \
action police rate 2.5tbit burst 1g conform-exceed drop/ok
check_fail $? "Incorrect success to add police action with too high rate"
tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
flower skip_sw \
action police rate 1.5kbit burst 1m conform-exceed drop/ok
check_err $? "Failed to add police action with low rate"
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
flower skip_sw \
action police rate 1.9tbit burst 1g conform-exceed drop/ok
check_err $? "Failed to add police action with high rate"
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
flower skip_sw \
action police rate 1.5kbit burst 512b conform-exceed drop/ok
check_fail $? "Incorrect success to add police action with too low burst size"
tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
flower skip_sw \
action police rate 1.5kbit burst 2k conform-exceed drop/ok
check_err $? "Failed to add police action with low burst size"
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
tc qdisc del dev $swp1 clsact
log_test "police rate and burst limits"
}
multi_police_test()
{
RET=0
# It is forbidden in mlxsw driver to have multiple police
# actions in a single rule.
tc qdisc add dev $swp1 clsact
tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 \
flower skip_sw \
action police rate 100mbit burst 100k conform-exceed drop/ok
check_err $? "Failed to add rule with single police action"
tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 \
flower skip_sw \
action police rate 100mbit burst 100k conform-exceed drop/pipe \
action police rate 200mbit burst 200k conform-exceed drop/ok
check_fail $? "Incorrect success to add rule with two police actions"
tc qdisc del dev $swp1 clsact
log_test "multi police"
}
setup_prepare()
{
swp1=${NETIFS[p1]}