Commit 63890286 authored by Cong Wang's avatar Cong Wang Committed by Jakub Kicinski
Browse files

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



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: default avatarCong Wang <xiyou.wangcong@gmail.com>
Link: https://patch.msgid.link/20250428232955.1740419-3-xiyou.wangcong@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 37694786

tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json

+35 −0
Original line number Diff line number Diff line
@@ -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"

        ]

    }

]