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selftests/tc-testing: sfq: check perturb timer values

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Add one test to check that the kernel rejects a negative perturb timer.

Add a second test checking that the kernel rejects
a too big perturb timer.

All test results:

1..2
ok 1 cdc1 - Check that a negative perturb timer is rejected
ok 2 a9f0 - Check that a too big perturb timer is rejected

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://patch.msgid.link/20250613064136.3911944-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2025-06-13 06:41:36 +00:00 committed by Jakub Kicinski
parent 6f10624d95
commit de74998c30
1 changed files with 36 additions and 0 deletions
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36
tools/testing/selftests/tc-testing/tc-tests/qdiscs/sfq.json
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@ -264,5 +264,41 @@
"matchPattern": "sfq",
"matchCount": "0",
"teardown": []
},
{
"id": "cdc1",
"name": "Check that a negative perturb timer is rejected",
"category": [
"qdisc",
"sfq"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [],
"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root sfq perturb -10",
"expExitCode": "2",
"verifyCmd": "$TC qdisc show dev $DUMMY",
"matchPattern": "sfq",
"matchCount": "0",
"teardown": []
},
{
"id": "a9f0",
"name": "Check that a too big perturb timer is rejected",
"category": [
"qdisc",
"sfq"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [],
"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root sfq perturb 1000000000",
"expExitCode": "2",
"verifyCmd": "$TC qdisc show dev $DUMMY",
"matchPattern": "sfq",
"matchCount": "0",
"teardown": []
}
]