selftests/tc-testing: add selftests for etf qdisc

Test 34ba: Create ETF with default setting
Test 438f: Create ETF with delta nanos setting
Test 9041: Create ETF with deadline_mode setting
Test 9a0c: Create ETF with skip_sock_check setting
Test 2093: Delete ETF with valid handle
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/tc-testing/config

@@ -15,6 +15,7 @@ CONFIG_NET_SCHED=y
 CONFIG_NET_SCH_ATM=m
 CONFIG_NET_SCH_CHOKE=m
 CONFIG_NET_SCH_CODEL=m
+CONFIG_NET_SCH_ETF=m
 CONFIG_NET_SCH_PRIO=m
 CONFIG_NET_SCH_INGRESS=m
 

tools/testing/selftests/tc-testing/tc-tests/qdiscs/etf.json

+[
+    {
+        "id": "34ba",
+        "name": "Create ETF with default setting",
+        "category": [
+            "qdisc",
+            "etf"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root etf clockid CLOCK_TAI",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc etf 1: root refcnt [0-9]+ clockid TAI delta 0 offload off deadline_mode off skip_sock_check off",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "438f",
+        "name": "Create ETF with delta nanos setting",
+        "category": [
+            "qdisc",
+            "etf"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root etf delta 100 clockid CLOCK_TAI",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc etf 1: root refcnt [0-9]+ clockid TAI delta 100 offload off deadline_mode off skip_sock_check off",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "9041",
+        "name": "Create ETF with deadline_mode setting",
+        "category": [
+            "qdisc",
+            "etf"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root etf clockid CLOCK_TAI deadline_mode",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc etf 1: root refcnt [0-9]+ clockid TAI delta 0 offload off deadline_mode on skip_sock_check off",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "9a0c",
+        "name": "Create ETF with skip_sock_check setting",
+        "category": [
+            "qdisc",
+            "etf"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root etf clockid CLOCK_TAI skip_sock_check",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc etf 1: root refcnt [0-9]+ clockid TAI delta 0 offload off deadline_mode off skip_sock_check on",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2093",
+        "name": "Delete ETF with valid handle",
+        "category": [
+            "qdisc",
+            "etf"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root etf clockid CLOCK_TAI"
+        ],
+        "cmdUnderTest": "$TC qdisc del dev $DUMMY handle 1: root",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc etf 1: root refcnt [0-9]+ clockid TAI delta 0 offload off deadline_mode off skip_sock_check off",
+        "matchCount": "0",
+        "teardown": [
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    }
+]