net/sched/sch_hhf.c

File Facts

System

Linux kernel

Corpus path

net/sched/sch_hhf.c

Extension

.c

Size

22517 bytes

Lines

733

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

• Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/jiffies.h
• linux/module.h
• linux/skbuff.h
• linux/vmalloc.h
• linux/siphash.h
• net/pkt_sched.h
• net/sock.h

Detected Declarations

• struct hh_flow_state
• struct wdrr_bucket
• struct hhf_sched_data
• enum wdrr_bucket_idx
• function hhf_time_stamp
• function list_for_each_entry_safe
• function hhf_classify
• function bucket_add
• function hhf_drop
• function hhf_enqueue
• function hhf_reset
• function hhf_destroy
• function list_for_each_entry_safe
• function hhf_change
• function hhf_init
• function hhf_dump
• function hhf_dump_stats
• function hhf_module_init
• function hhf_module_exit
• module init hhf_module_init

Annotated Snippet

module_init(hhf_module_init)
module_exit(hhf_module_exit)
MODULE_AUTHOR("Terry Lam");
MODULE_AUTHOR("Nandita Dukkipati");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Heavy-Hitter Filter (HHF)");

Annotation

• Immediate include surface: `linux/jiffies.h`, `linux/module.h`, `linux/skbuff.h`, `linux/vmalloc.h`, `linux/siphash.h`, `net/pkt_sched.h`, `net/sock.h`.
• Detected declarations: `struct hh_flow_state`, `struct wdrr_bucket`, `struct hhf_sched_data`, `enum wdrr_bucket_idx`, `function hhf_time_stamp`, `function list_for_each_entry_safe`, `function hhf_classify`, `function bucket_add`, `function hhf_drop`, `function hhf_enqueue`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration implementation candidate.

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.