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([2402:e280:21c6:671:cc96:e14b:76e:f8f1]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1b3755eb6efsm13443513c88.4.2026.11.08.23.10.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Nov 2026 23:10:57 -0800 (PST) From: "Hemendra M. Naik" To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, jiri@resnulli.us, jhs@mojatatu.com, shuah@kernel.org, donald.hunter@gmail.com, ast@fiberby.net, toke@redhat.com, liuhangbin@kylinos.cn, j.koeppeler@tu-berlin.de, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, vishy0777@gmail.com, tahiliani@nitk.edu.in, "Hemendra M. Naik" Subject: [PATCH net-next v10 2/4] selftests: tc-testing: add fq_pie per-flow class stats test Date: Mon, 9 Nov 2026 12:40:15 +0530 Message-Id: <20261109071017.438478-3-hemendranaik@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261109071017.438478-1-hemendranaik@gmail.com> References: <20261109071017.438478-1-hemendranaik@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add tc-testing case 83c0: build a TBF + fq_pie hierarchy on $DUMMY, push traffic through it with ping, and verify that 'tc -s class show' reports an fq_pie class. The per-flow counters themselves (prob, delay, deficit) are printed with the companion iproute2 change, "tc: fq_pie: add support for printing per-flow PIE statistics" Signed-off-by: Hemendra M. Naik Signed-off-by: Vishal Kamath Signed-off-by: Mohit P. Tahiliani --- .../tc-testing/tc-tests/qdiscs/fq_pie.json | 27 +++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json index 229fe1bf4a90..15b2667285eb 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json +++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq_pie.json @@ -40,5 +40,32 @@ "matchPattern": "qdisc fq_pie 1: root refcnt [0-9]+ limit 1p", "matchCount": "1", "teardown": ["$TC qdisc del dev $DEV1 handle 1: root"] + }, + { + "id": "83c0", + "name": "FQ-PIE class stats accessible via tc class show", + "category": [ + "qdisc", + "fq_pie" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$IP link set dev $DUMMY up || true", + "$IP addr add 10.10.11.10/24 dev $DUMMY || true", + "$TC qdisc add dev $DUMMY root handle 1: tbf rate 8bit burst 100b latency 100ms", + "$TC qdisc add dev $DUMMY parent 1:1 handle 2: fq_pie limit 100 flows 1", + "ping -c 50 -i 0.001 -W 0.01 -s 56 10.10.11.11 -I $DUMMY > /dev/null 2>&1 || true" + ], + "cmdUnderTest": "$TC -s class show dev $DUMMY", + "expExitCode": "0", + "verifyCmd": "$TC -s class show dev $DUMMY", + "matchPattern": "class fq_pie 2:[0-9]+ .*prob .*delay .*deficit", + "matchCount": "1", + "teardown": [ + "$TC qdisc del dev $DUMMY handle 1: root", + "$IP addr del 10.10.11.10/24 dev $DUMMY || true" + ] } ] -- 2.34.1