diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2025-04-03 14:16:35 -0700 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-04-08 10:58:16 +0200 |
| commit | 0d5c27ecb60c6cc4e394035aa04696d7eb39f072 (patch) | |
| tree | d654e4c722cb8dc44a6a06ad9d610516e192ddbc /tools | |
| parent | 72b05c1bf7ea799bfce1164d6605b27f060191ac (diff) | |
selftests/tc-testing: Add a test case for FQ_CODEL with DRR parent
Add a test case for FQ_CODEL with DRR parent to verify packet drop
behavior when the queue becomes empty. This helps ensure proper
notification mechanisms between qdiscs.
Note this is best-effort, it is hard to play with those parameters
perfectly to always trigger ->qlen_notify().
Cc: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Link: https://patch.msgid.link/20250403211636.166257-5-xiyou.wangcong@gmail.com
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json b/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json index 0347b207fe6d..4a45fedad876 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json +++ b/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json @@ -251,5 +251,36 @@ "$TC qdisc del dev $DUMMY handle 1: root", "$IP addr del 10.10.10.10/24 dev $DUMMY || true" ] + }, + { + "id": "a4c0", + "name": "Test FQ_CODEL with DRR parent - force packet drop with empty queue", + "category": [ + "qdisc", + "fq_codel", + "drr" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$IP link set dev $DUMMY up || true", + "$IP addr add 10.10.10.10/24 dev $DUMMY || true", + "$TC qdisc add dev $DUMMY handle 1: root drr", + "$TC class add dev $DUMMY parent 1: classid 1:10 drr quantum 1500", + "$TC qdisc add dev $DUMMY parent 1:10 handle 10: fq_codel memory_limit 1 flows 1 target 0.1ms interval 1ms", + "$TC filter add dev $DUMMY parent 1: protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:10", + "ping -c 5 -f -I $DUMMY 10.10.10.1 > /dev/null || true", + "sleep 0.1" + ], + "cmdUnderTest": "$TC -s qdisc show dev $DUMMY", + "expExitCode": "0", + "verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc fq_codel'", + "matchPattern": "dropped [1-9][0-9]*", + "matchCount": "1", + "teardown": [ + "$TC qdisc del dev $DUMMY handle 1: root", + "$IP addr del 10.10.10.10/24 dev $DUMMY || true" + ] } ] |