drivers/net/ethernet/hisilicon/hns/hnae.c

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/hisilicon/hns/hnae.c

Extension

.c

Size

10244 bytes

Lines

468

Domain

Driver Families

Bucket

drivers/net

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/dma-mapping.h
• linux/interrupt.h
• linux/of.h
• linux/skbuff.h
• linux/slab.h
• hnae.h

Detected Declarations

• function hnae_list_add
• function hnae_list_del
• function hnae_alloc_buffer
• function hnae_free_buffer
• function hnae_map_buffer
• function hnae_unmap_buffer
• function __ae_match
• function hnae_free_buffers
• function hnae_alloc_buffers
• function hnae_free_desc
• function hnae_alloc_desc
• function hnae_fini_ring
• function hnae_init_ring
• function hnae_init_queue
• function hnae_fini_queue
• function hnae_register_notifier
• function hnae_unregister_notifier
• function hnae_reinit_handle
• function hnae_put_handle
• function hnae_release
• function hnae_ae_unregister
• function hnae_init
• function hnae_exit
• module init hnae_init
• export hnae_register_notifier
• export hnae_unregister_notifier
• export hnae_reinit_handle
• export hnae_get_handle
• export hnae_put_handle
• export hnae_ae_register
• export hnae_ae_unregister

Annotated Snippet

subsys_initcall(hnae_init);
module_exit(hnae_exit);

MODULE_AUTHOR("Hisilicon, Inc.");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Hisilicon Network Acceleration Engine Framework");

/* vi: set tw=78 noet: */

Annotation

• Immediate include surface: `linux/dma-mapping.h`, `linux/interrupt.h`, `linux/of.h`, `linux/skbuff.h`, `linux/slab.h`, `hnae.h`.
• Detected declarations: `function hnae_list_add`, `function hnae_list_del`, `function hnae_alloc_buffer`, `function hnae_free_buffer`, `function hnae_map_buffer`, `function hnae_unmap_buffer`, `function __ae_match`, `function hnae_free_buffers`, `function hnae_alloc_buffers`, `function hnae_free_desc`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.