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selftests: tc-testing: add test for qfq with stab overhead

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A packet with stab overhead greater than QFQ_MAX_LMAX should be dropped
by the QFQ qdisc as it can't handle such lengths.

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Pedro Tammela 2023-07-11 18:01:03 -03:00 committed by Paolo Abeni
parent 3e337087c3
commit 137f6219da
1 changed files with 38 additions and 0 deletions
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38
tools/testing/selftests/tc-testing/tc-tests/qdiscs/qfq.json
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@ -261,5 +261,43 @@
"teardown": [ "teardown": [
"$IP link del dev $DUMMY type dummy" "$IP link del dev $DUMMY type dummy"
] ]
},
{
"id": "5993",
"name": "QFQ with stab overhead greater than max packet len",
"category": [
"qdisc",
"qfq",
"scapy"
],
"plugins": {
"requires": [
"nsPlugin",
"scapyPlugin"
]
},
"setup": [
"$IP link add dev $DUMMY type dummy || /bin/true",
"$IP link set dev $DUMMY up || /bin/true",
"$TC qdisc add dev $DUMMY handle 1: stab mtu 2048 tsize 512 mpu 0 overhead 999999999 linklayer ethernet root qfq",
"$TC class add dev $DUMMY parent 1: classid 1:1 qfq weight 100",
"$TC qdisc add dev $DEV1 clsact",
"$TC filter add dev $DEV1 ingress protocol ip flower dst_ip 1.3.3.7/32 action mirred egress mirror dev $DUMMY"
],
"cmdUnderTest": "$TC filter add dev $DUMMY parent 1: matchall classid 1:1",
"scapy": [
{
"iface": "$DEV0",
"count": 22,
"packet": "Ether(type=0x800)/IP(src='10.0.0.10',dst='1.3.3.7')/TCP(sport=5000,dport=10)"
}
],
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc ls dev $DUMMY",
"matchPattern": "dropped 22",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root qfq"
]
} }
] ]