drivers/rapidio/switches/idt_gen2.c

File Facts

System

Linux kernel

Corpus path

drivers/rapidio/switches/idt_gen2.c

Extension

.c

Size

12534 bytes

Lines

491

Domain

Driver Families

Bucket

drivers/rapidio

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

Dependency Surface

• linux/stat.h
• linux/module.h
• linux/rio.h
• linux/rio_drv.h
• linux/rio_ids.h
• linux/delay.h
• asm/page.h
• ../rio.h

Detected Declarations

• function idtg2_route_add_entry
• function idtg2_route_get_entry
• function idtg2_route_clr_table
• function idtg2_set_domain
• function idtg2_get_domain
• function idtg2_em_init
• function idtg2_em_handler
• function idtg2_show_errlog
• function idtg2_sysfs
• function idtg2_probe
• function idtg2_remove
• function idtg2_init
• function idtg2_exit
• module init idtg2_init

Annotated Snippet

device_initcall(idtg2_init);
module_exit(idtg2_exit);

MODULE_DESCRIPTION("IDT CPS Gen.2 Serial RapidIO switch family driver");
MODULE_AUTHOR("Integrated Device Technology, Inc.");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/stat.h`, `linux/module.h`, `linux/rio.h`, `linux/rio_drv.h`, `linux/rio_ids.h`, `linux/delay.h`, `asm/page.h`, `../rio.h`.
• Detected declarations: `function idtg2_route_add_entry`, `function idtg2_route_get_entry`, `function idtg2_route_clr_table`, `function idtg2_set_domain`, `function idtg2_get_domain`, `function idtg2_em_init`, `function idtg2_em_handler`, `function idtg2_show_errlog`, `function idtg2_sysfs`, `function idtg2_probe`.
• Atlas domain: Driver Families / drivers/rapidio.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.