drivers/infiniband/core/iter.c

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/core/iter.c

Extension

.c

Size

1228 bytes

Lines

44

Domain

Driver Families

Bucket

drivers/infiniband

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

Dependency Surface

• linux/export.h
• rdma/iter.h

Detected Declarations

• function __rdma_block_iter_start
• function __rdma_block_iter_next
• export __rdma_block_iter_start
• export __rdma_block_iter_next

Annotated Snippet

sg_dma_len(biter->__sg) - biter->__sg_advance <= delta) {
		delta -= sg_dma_len(biter->__sg) - biter->__sg_advance;
		biter->__sg_advance = 0;
		biter->__sg = sg_next(biter->__sg);
		biter->__sg_nents--;
	}
	biter->__sg_advance += delta;

	return true;
}
EXPORT_SYMBOL(__rdma_block_iter_next);

Annotation

• Immediate include surface: `linux/export.h`, `rdma/iter.h`.
• Detected declarations: `function __rdma_block_iter_start`, `function __rdma_block_iter_next`, `export __rdma_block_iter_start`, `export __rdma_block_iter_next`.
• Atlas domain: Driver Families / drivers/infiniband.
• 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.