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selftests/tc-testing: Add a test case to cover basic HTB+FQ_CODEL case

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Integrate the reproducer from Alan into TC selftests and use scapy to
generate TCP traffic instead of relying on ping command.

Cc: Alan J. Wylie <alan@wylie.me.uk>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://patch.msgid.link/20250428232955.1740419-3-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Cong Wang
2025-04-28 16:29:55 -07:00
committed by Jakub Kicinski
parent 3769478610
commit 63890286f5
1 changed files with 35 additions and 0 deletions
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35
tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json
View File

@@ -538,5 +538,40 @@
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "62c4",
"name": "Test HTB with FQ_CODEL - basic functionality",
"category": [
"qdisc",
"htb",
"fq_codel"
],
"plugins": {
"requires": [
"nsPlugin",
"scapyPlugin"
]
},
"setup": [
"$TC qdisc add dev $DEV1 root handle 1: htb default 11",
"$TC class add dev $DEV1 parent 1: classid 1:1 htb rate 10kbit",
"$TC class add dev $DEV1 parent 1:1 classid 1:11 htb rate 10kbit prio 0 quantum 1486",
"$TC qdisc add dev $DEV1 parent 1:11 fq_codel quantum 300 noecn",
"sleep 0.5"
],
"scapy": {
"iface": "$DEV0",
"count": 5,
"packet": "Ether()/IP(dst='10.10.10.1', src='10.10.10.10')/TCP(sport=12345, dport=80)"
},
"cmdUnderTest": "$TC -s qdisc show dev $DEV1",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DEV1 | grep -A 5 'qdisc fq_codel'",
"matchPattern": "Sent [0-9]+ bytes [0-9]+ pkt",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DEV1 handle 1: root"
]
}
]