We should not always presume all kernels use pfifo_fast as the default qdisc.
For example, a fq_codel qdisk could have below output:
qdisc fq_codel 0: parent 1:4 limit 10240p flows 1024 quantum 1514 target 5ms interval 100ms memory_limit 32Mb ecn drop_batch 64
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Suggested-by: Peilin Ye <peilin.ye@xxxxxxxxxxxxx>
Signed-off-by: Li Zhijian <zhijianx.li@xxxxxxxxx>
---
.../selftests/tc-testing/tc-tests/qdiscs/mq.json | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
index 88a20c781e49..c6046096d9db 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
@@ -15,7 +15,7 @@
"cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
"expExitCode": "0",
"verifyCmd": "$TC qdisc show dev $ETH",
- "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent 1:[1-4]",
"matchCount": "4",
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
@@ -37,7 +37,7 @@
"cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
"expExitCode": "0",
"verifyCmd": "$TC qdisc show dev $ETH",
- "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-9,a-f][0-9,a-f]{0,2} bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent 1:[1-9,a-f][0-9,a-f]{0,2}",
"matchCount": "256",
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
@@ -60,7 +60,7 @@
"cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq",
"expExitCode": "2",
"verifyCmd": "$TC qdisc show dev $ETH",
- "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent 1:[1-4]",
"matchCount": "4",
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
@@ -82,7 +82,7 @@
"cmdUnderTest": "$TC qdisc del dev $ETH root handle 1: mq",
"expExitCode": "2",
"verifyCmd": "$TC qdisc show dev $ETH",
- "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent 1:[1-4]",
"matchCount": "0",
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
@@ -106,7 +106,7 @@
"cmdUnderTest": "$TC qdisc del dev $ETH root handle 1: mq",
"expExitCode": "2",
"verifyCmd": "$TC qdisc show dev $ETH",
- "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent 1:[1-4]",
"matchCount": "0",
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
@@ -128,7 +128,7 @@
"cmdUnderTest": "$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",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent 1:[1-4]",
"matchCount": "0",
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
--
2.32.0
