drivers/scsi/sgiwd93.c

File Facts

System

Linux kernel

Corpus path

drivers/scsi/sgiwd93.c

Extension

.c

Size

8326 bytes

Lines

332

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.
• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/delay.h
• linux/dma-mapping.h
• linux/gfp.h
• linux/interrupt.h
• linux/init.h
• linux/kernel.h
• linux/types.h
• linux/module.h
• linux/platform_device.h
• linux/spinlock.h
• asm/sgi/hpc3.h
• asm/sgi/ip22.h
• asm/sgi/wd.h
• scsi/scsi.h
• scsi/scsi_cmnd.h
• scsi/scsi_device.h
• scsi/scsi_eh.h
• scsi/scsi_tcq.h
• wd33c93.h

Detected Declarations

• struct ip22_hostdata
• struct hpc_chunk
• function sgiwd93_intr
• function fill_hpc_entries
• function dma_setup
• function dma_stop
• function sgiwd93_reset
• function init_hpc_chain
• function sgiwd93_probe
• function sgiwd93_remove
• function sgiwd93_module_init
• function sgiwd93_module_exit
• module init sgiwd93_module_init
• export sgiwd93_reset

Annotated Snippet

module_init(sgiwd93_module_init);
module_exit(sgiwd93_module_exit);

MODULE_DESCRIPTION("SGI WD33C93 driver");
MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:sgiwd93");

Annotation

• Immediate include surface: `linux/delay.h`, `linux/dma-mapping.h`, `linux/gfp.h`, `linux/interrupt.h`, `linux/init.h`, `linux/kernel.h`, `linux/types.h`, `linux/module.h`.
• Detected declarations: `struct ip22_hostdata`, `struct hpc_chunk`, `function sgiwd93_intr`, `function fill_hpc_entries`, `function dma_setup`, `function dma_stop`, `function sgiwd93_reset`, `function init_hpc_chain`, `function sgiwd93_probe`, `function sgiwd93_remove`.
• Atlas domain: Driver Families / drivers/scsi.
• 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.