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

File Facts

System

Linux kernel

Corpus path

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

Extension

.json

Size

3211 bytes

Lines

110

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: configuration, schema, or hardware description

Status

atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

[
    {
        "id": "900c",
        "name": "Create pfifo_fast with default setting",
        "category": [
            "qdisc",
            "pfifo_fast"
        ],
        "plugins": {
            "requires": "nsPlugin"
        },
        "setup": [
        ],
        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root pfifo_fast",
        "expExitCode": "0",
        "verifyCmd": "$TC qdisc show dev $DUMMY",
        "matchPattern": "qdisc pfifo_fast 1: root refcnt [0-9]+ bands 3 priomap",
        "matchCount": "1",
        "teardown": [
            "$TC qdisc del dev $DUMMY handle 1: root"
        ]
    },
    {
        "id": "7470",
        "name": "Dump pfifo_fast stats",
        "category": [
            "qdisc",
            "pfifo_fast"
        ],
        "plugins": {
            "requires": "nsPlugin"
        },
        "setup": [
        ],
        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root pfifo_fast",
        "expExitCode": "0",
        "verifyCmd": "$TC -s qdisc show dev $DUMMY",
        "matchPattern": "Sent.*bytes.*pkt \\(dropped.*overlimits.*requeues .*\\)",
        "matchCount": "1",
        "teardown": [
            "$TC qdisc del dev $DUMMY handle 1: root"
        ]
    },
    {
        "id": "b974",
        "name": "Replace pfifo_fast with different handle",
        "category": [
            "qdisc",
            "pfifo_fast"
        ],
        "plugins": {
            "requires": "nsPlugin"
        },
        "setup": [
            "$TC qdisc add dev $DUMMY handle 1: root pfifo_fast"
        ],
        "cmdUnderTest": "$TC qdisc replace dev $DUMMY handle 2: root pfifo_fast",
        "expExitCode": "0",
        "verifyCmd": "$TC qdisc show dev $DUMMY",
        "matchPattern": "qdisc pfifo_fast 2: root refcnt [0-9]+ bands 3 priomap",
        "matchCount": "1",
        "teardown": [
            "$TC qdisc del dev $DUMMY handle 2: root"
        ]
    },
    {
        "id": "3240",
        "name": "Delete pfifo_fast with valid handle",
        "category": [
            "qdisc",

Annotation

• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: atlas-only.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.