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Date:   Tue,  3 Aug 2021 15:16:59 -0700
From:   Peilin Ye <yepeilin.cs@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>, Shuah Khan <shuah@...nel.org>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lucas Bates <lucasb@...atatu.com>,
        Cong Wang <cong.wang@...edance.com>,
        Peilin Ye <peilin.ye@...edance.com>,
        Peilin Ye <yepeilin.cs@...il.com>
Subject: [PATCH net-next] tc-testing: Add control-plane selftests for sch_mq

From: Peilin Ye <peilin.ye@...edance.com>

Recently we added multi-queue support to netdevsim in commit d4861fc6be58
("netdevsim: Add multi-queue support"); add a few control-plane selftests
for sch_mq using this new feature.

Use nsPlugin.py to avoid network interface name collisions.

Reviewed-by: Cong Wang <cong.wang@...edance.com>
Signed-off-by: Peilin Ye <peilin.ye@...edance.com>
---
Hi all,

Here are some control-plane selftests for the mq Qdisc using netdevsim's
new multi-queue feature.  We are planning to add more data-plane selftests
in the future.

Thank you,
Peilin Ye

 .../tc-testing/tc-tests/qdiscs/mq.json        | 137 ++++++++++++++++++
 .../selftests/tc-testing/tdc_config.py        |   1 +
 2 files changed, 138 insertions(+)
 create mode 100644 tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json

diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
new file mode 100644
index 000000000000..88a20c781e49
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
@@ -0,0 +1,137 @@
+[
+	{
+	    "id": "ce7d",
+	    "name": "Add mq Qdisc to multi-queue device (4 queues)",
+	    "category": [
+            "qdisc",
+            "mq"
+	    ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+	    "setup": [
+            "echo \"1 1 4\" > /sys/bus/netdevsim/new_device"
+	    ],
+	    "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
+	    "expExitCode": "0",
+	    "verifyCmd": "$TC qdisc show dev $ETH",
+	    "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+	    "matchCount": "4",
+	    "teardown": [
+		    "echo \"1\" > /sys/bus/netdevsim/del_device"
+	    ]
+	},
+	{
+	    "id": "2f82",
+	    "name": "Add mq Qdisc to multi-queue device (256 queues)",
+	    "category": [
+            "qdisc",
+            "mq"
+	    ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+	    "setup": [
+            "echo \"1 1 256\" > /sys/bus/netdevsim/new_device"
+	    ],
+	    "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
+	    "expExitCode": "0",
+	    "verifyCmd": "$TC qdisc show dev $ETH",
+	    "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-9,a-f][0-9,a-f]{0,2} bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+	    "matchCount": "256",
+	    "teardown": [
+		    "echo \"1\" > /sys/bus/netdevsim/del_device"
+	    ]
+	},
+	{
+	    "id": "c525",
+	    "name": "Add duplicate mq Qdisc",
+	    "category": [
+            "qdisc",
+            "mq"
+	    ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+	    "setup": [
+            "echo \"1 1 4\" > /sys/bus/netdevsim/new_device",
+            "$TC qdisc add dev $ETH root handle 1: mq"
+	    ],
+	    "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
+	    "expExitCode": "2",
+	    "verifyCmd": "$TC qdisc show dev $ETH",
+	    "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+	    "matchCount": "4",
+	    "teardown": [
+		    "echo \"1\" > /sys/bus/netdevsim/del_device"
+	    ]
+	},
+	{
+	    "id": "128a",
+	    "name": "Delete nonexistent mq Qdisc",
+	    "category": [
+            "qdisc",
+            "mq"
+	    ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+	    "setup": [
+            "echo \"1 1 4\" > /sys/bus/netdevsim/new_device"
+	    ],
+	    "cmdUnderTest": "$TC qdisc del dev $ETH root handle 1: mq",
+	    "expExitCode": "2",
+	    "verifyCmd": "$TC qdisc show dev $ETH",
+	    "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+	    "matchCount": "0",
+	    "teardown": [
+		    "echo \"1\" > /sys/bus/netdevsim/del_device"
+	    ]
+	},
+	{
+	    "id": "03a9",
+	    "name": "Delete mq Qdisc twice",
+	    "category": [
+            "qdisc",
+            "mq"
+	    ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+	    "setup": [
+            "echo \"1 1 4\" > /sys/bus/netdevsim/new_device",
+            "$TC qdisc add dev $ETH root handle 1: mq",
+            "$TC qdisc del dev $ETH root handle 1: mq"
+	    ],
+	    "cmdUnderTest": "$TC qdisc del dev $ETH root handle 1: mq",
+	    "expExitCode": "2",
+	    "verifyCmd": "$TC qdisc show dev $ETH",
+	    "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+	    "matchCount": "0",
+	    "teardown": [
+		    "echo \"1\" > /sys/bus/netdevsim/del_device"
+	    ]
+	},
+    {
+	    "id": "be0f",
+	    "name": "Add mq Qdisc to single-queue device",
+	    "category": [
+            "qdisc",
+            "mq"
+	    ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+	    "setup": [
+            "echo \"1 1\" > /sys/bus/netdevsim/new_device"
+	    ],
+	    "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
+	    "expExitCode": "2",
+	    "verifyCmd": "$TC qdisc show dev $ETH",
+	    "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+	    "matchCount": "0",
+	    "teardown": [
+		    "echo \"1\" > /sys/bus/netdevsim/del_device"
+	    ]
+	}
+]
diff --git a/tools/testing/selftests/tc-testing/tdc_config.py b/tools/testing/selftests/tc-testing/tdc_config.py
index cd4a27ee1466..ea04f04c173e 100644
--- a/tools/testing/selftests/tc-testing/tdc_config.py
+++ b/tools/testing/selftests/tc-testing/tdc_config.py
@@ -17,6 +17,7 @@ NAMES = {
           'DEV1': 'v0p1',
           'DEV2': '',
           'DUMMY': 'dummy1',
+	  'ETH': 'eth0',
           'BATCH_FILE': './batch.txt',
           'BATCH_DIR': 'tmp',
           # Length of time in seconds to wait before terminating a command
-- 
2.20.1

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