drivers/scsi/device_handler/scsi_dh_hp_sw.c

File Facts

System

Linux kernel

Corpus path

drivers/scsi/device_handler/scsi_dh_hp_sw.c

Extension

.c

Size

6625 bytes

Lines

286

Domain

Driver Families

Bucket

drivers/scsi

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.
• 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/slab.h
• linux/module.h
• scsi/scsi.h
• scsi/scsi_dbg.h
• scsi/scsi_eh.h
• scsi/scsi_dh.h

Detected Declarations

• struct hp_sw_dh_data
• function tur_done
• function hp_sw_tur
• function hp_sw_start_stop
• function hp_sw_prep_fn
• function path
• function hp_sw_bus_attach
• function hp_sw_bus_detach
• function hp_sw_init
• function hp_sw_exit
• module init hp_sw_init

Annotated Snippet

module_init(hp_sw_init);
module_exit(hp_sw_exit);

MODULE_DESCRIPTION("HP Active/Passive driver");
MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/slab.h`, `linux/module.h`, `scsi/scsi.h`, `scsi/scsi_dbg.h`, `scsi/scsi_eh.h`, `scsi/scsi_dh.h`.
• Detected declarations: `struct hp_sw_dh_data`, `function tur_done`, `function hp_sw_tur`, `function hp_sw_start_stop`, `function hp_sw_prep_fn`, `function path`, `function hp_sw_bus_attach`, `function hp_sw_bus_detach`, `function hp_sw_init`, `function hp_sw_exit`.
• Atlas domain: Driver Families / drivers/scsi.
• 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.