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selftests/tc-testing: add tests for qdisc_tree_reduce_backlog

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Add 3 tests to check for the expected behaviour of
qdisc_tree_reduce_backlog in special scenarios.

- The first test checks if the qdisc class is notified of deletion for
major handle 'ffff:'.
- The second test checks the same as the first test but with 'ffff:' as the root
qdisc.
- The third test checks if everything works if ingress is active.

Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Link: https://patch.msgid.link/20241101143148.1218890-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Pedro Tammela
2024-11-01 11:31:48 -03:00
committed by Jakub Kicinski
parent 74a11428cb
commit 9ff75a23df
1 changed files with 98 additions and 0 deletions
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98
tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json Normal file
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[
{
"id": "ca5e",
"name": "Check class delete notification for ffff:",
"category": [
"qdisc"
],
"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 $DUMMY root handle 1: drr",
"$TC filter add dev $DUMMY parent 1: basic classid 1:1",
"$TC class add dev $DUMMY parent 1: classid 1:1 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle ffff: drr",
"$TC filter add dev $DUMMY parent ffff: basic classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr",
"$TC qdisc add dev $DUMMY parent ffff:1 netem delay 1s",
"ping -c1 -W0.01 -I $DUMMY 10.10.10.1 || true",
"$TC class del dev $DUMMY classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr"
],
"cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.10.1",
"expExitCode": "1",
"verifyCmd": "$TC -s qdisc ls dev $DUMMY",
"matchPattern": "drr 1: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle 1: drr",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
},
{
"id": "e4b7",
"name": "Check class delete notification for root ffff:",
"category": [
"qdisc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY root handle ffff: drr",
"$TC filter add dev $DUMMY parent ffff: basic classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr",
"$TC qdisc add dev $DUMMY parent ffff:1 netem delay 1s",
"ping -c1 -W0.01 -I $DUMMY 10.10.10.1 || true",
"$TC class del dev $DUMMY classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr"
],
"cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.10.1",
"expExitCode": "1",
"verifyCmd": "$TC qdisc ls dev $DUMMY",
"matchPattern": "drr ffff: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle ffff: drr",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
},
{
"id": "33a9",
"name": "Check ingress is not searchable on backlog update",
"category": [
"qdisc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY ingress",
"$TC qdisc add dev $DUMMY root handle 1: drr",
"$TC filter add dev $DUMMY parent 1: basic classid 1:1",
"$TC class add dev $DUMMY parent 1: classid 1:1 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2: drr",
"$TC filter add dev $DUMMY parent 2: basic classid 2:1",
"$TC class add dev $DUMMY parent 2: classid 2:1 drr",
"$TC qdisc add dev $DUMMY parent 2:1 netem delay 1s",
"ping -c1 -W0.01 -I $DUMMY 10.10.10.1 || true"
],
"cmdUnderTest": "$TC class del dev $DUMMY classid 2:1",
"expExitCode": "0",
"verifyCmd": "$TC qdisc ls dev $DUMMY",
"matchPattern": "drr 1: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle 1: drr",
"$TC qdisc del dev $DUMMY ingress",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
}
]