diff mbox series

[net,v2,2/4] selftests/tc-testing: Add a test case for pfifo_head_drop qdisc when limit==0

Message ID 20250126041224.366350-3-xiyou.wangcong@gmail.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series net_sched: two security bug fixes and test cases | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/build_tools success Errors and warnings before: 26 (+1) this patch: 26 (+1)
netdev/cc_maintainers warning 2 maintainers not CCed: shuah@kernel.org linux-kselftest@vger.kernel.org
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 31 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest fail net-next-2025-01-26--06-00 (tests: 885)

Commit Message

Cong Wang Jan. 26, 2025, 4:12 a.m. UTC 
From: Quang Le <quanglex97@gmail.com>

When limit == 0, pfifo_tail_enqueue() must drop new packet and
increase dropped packets count of the qdisc.

All test results:

1..16
ok 1 a519 - Add bfifo qdisc with system default parameters on egress
ok 2 585c - Add pfifo qdisc with system default parameters on egress
ok 3 a86e - Add bfifo qdisc with system default parameters on egress with handle of maximum value
ok 4 9ac8 - Add bfifo qdisc on egress with queue size of 3000 bytes
ok 5 f4e6 - Add pfifo qdisc on egress with queue size of 3000 packets
ok 6 b1b1 - Add bfifo qdisc with system default parameters on egress with invalid handle exceeding maximum value
ok 7 8d5e - Add bfifo qdisc on egress with unsupported argument
ok 8 7787 - Add pfifo qdisc on egress with unsupported argument
ok 9 c4b6 - Replace bfifo qdisc on egress with new queue size
ok 10 3df6 - Replace pfifo qdisc on egress with new queue size
ok 11 7a67 - Add bfifo qdisc on egress with queue size in invalid format
ok 12 1298 - Add duplicate bfifo qdisc on egress
ok 13 45a0 - Delete nonexistent bfifo qdisc
ok 14 972b - Add prio qdisc on egress with invalid format for handles
ok 15 4d39 - Delete bfifo qdisc twice
ok 16 d774 - Check pfifo_head_drop qdisc enqueue behaviour when limit == 0

Signed-off-by: Quang Le <quanglex97@gmail.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
---
 .../tc-testing/tc-tests/qdiscs/fifo.json      | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fifo.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fifo.json
index ae3d286a32b2..94f6456ab460 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fifo.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/fifo.json
@@ -313,6 +313,31 @@ 
         "matchPattern": "qdisc bfifo 1: root",
         "matchCount": "0",
         "teardown": [
+	]
+    },
+    {
+        "id": "d774",
+        "name": "Check pfifo_head_drop qdisc enqueue behaviour when limit == 0",
+        "category": [
+            "qdisc",
+            "pfifo_head_drop"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY mtu 1279 type dummy || true",
+            "$IP addr add 10.10.10.10/24 dev $DUMMY || true",
+            "$TC qdisc add dev $DUMMY root handle 1: pfifo_head_drop limit 0",
+            "$IP link set dev $DUMMY up || true"
+        ],
+        "cmdUnderTest": "ping -c2 -W0.01 -I $DUMMY 10.10.10.1",
+        "expExitCode": "1",
+        "verifyCmd": "$TC -s qdisc show dev $DUMMY",
+        "matchPattern": "dropped 2",
+        "matchCount": "1",
+        "teardown": [
+            "$IP link del dev $DUMMY"
         ]
     }
 ]