drivers/infiniband/hw/hfi1/chip.h

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/hw/hfi1/chip.h

Extension

.h

Size

42880 bytes

Lines

1427

Domain

Driver Families

Bucket

drivers/infiniband

Inferred role

Driver Families: implementation source

Status

source 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.
• 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

• chip_registers.h

Detected Declarations

• struct is_table
• function read_kctxt_csr
• function write_kctxt_csr
• function read_uctxt_csr
• function write_uctxt_csr
• function chip_rcv_contexts
• function chip_send_contexts
• function chip_sdma_engines
• function chip_pio_mem_size
• function chip_sdma_mem_size
• function chip_rcv_array_count
• function vl_from_idx
• function idx_from_vl

Annotated Snippet

struct is_table {
	int start;	 /* interrupt source type start */
	int end;	 /* interrupt source type end */
	/* routine that returns the name of the interrupt source */
	char *(*is_name)(char *name, size_t size, unsigned int source);
	/* routine to call when receiving an interrupt */
	void (*is_int)(struct hfi1_devdata *dd, unsigned int source);
};

#endif /* _CHIP_H */

Annotation

• Immediate include surface: `chip_registers.h`.
• Detected declarations: `struct is_table`, `function read_kctxt_csr`, `function write_kctxt_csr`, `function read_uctxt_csr`, `function write_uctxt_csr`, `function chip_rcv_contexts`, `function chip_send_contexts`, `function chip_sdma_engines`, `function chip_pio_mem_size`, `function chip_sdma_mem_size`.
• Atlas domain: Driver Families / drivers/infiniband.
• Implementation status: source implementation candidate.
• 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.