Thread (6 messages) 6 messages, 2 authors, 2026-09-01

[PATCH net-next v4 2/3] selftests: tc-testing: add fq_pie per-flow class stats test

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From: Hemendra M. Naik <hidden>
Date: 2026-07-27 16:42:08
Also in: linux-kselftest, lkml
Subsystem: kernel selftest framework, the rest · Maintainers: Shuah Khan, Shuah Khan, Linus Torvalds

Revision v4 of 9 in this series.

Revisions (9)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 current
  5. v5 [diff vs current]
  6. v6 [diff vs current]
  7. v7 [diff vs current]
  8. v8 [diff vs current]
  9. v9 [diff vs current]
Add a tc-testing entry (id: 83c0) to verify the fq_pie class ops
wired up in the previous patch do not crash and integrate cleanly
with the tc class show path.

The test creates an fq_pie root qdisc on a dummy interface and runs
'tc -s class show'.

Signed-off-by: Hemendra M. Naik <redacted>
Signed-off-by: Vishal Kamath <redacted>
Signed-off-by: Mohit P. Tahiliani <redacted>
---
 .../tc-testing/tc-tests/qdiscs/fq_pie.json    | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json
index 229fe1bf4a90..88139f429430 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json
@@ -40,5 +40,27 @@
         "matchPattern": "qdisc fq_pie 1: root refcnt [0-9]+ limit 1p",
         "matchCount": "1",
         "teardown": ["$TC qdisc del dev $DEV1 handle 1: root"]
+    },
+    {
+        "id": "83c0",
+        "name": "FQ-PIE class stats accessible via tc class show",
+        "category": [
+            "qdisc",
+            "fq_pie"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DUMMY handle 1: root fq_pie"
+        ],
+        "cmdUnderTest": "$TC -s class show dev $DUMMY",
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s class show dev $DUMMY",
+        "matchPattern": "class fq_pie",
+        "matchCount": "0",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root"
+        ]
     }
 ]
--
2.34.1
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