drivers/staging/octeon/ethernet-util.h

File Facts

System

Linux kernel

Corpus path

drivers/staging/octeon/ethernet-util.h

Extension

.h

Size

1126 bytes

Lines

48

Domain

Driver Families

Bucket

drivers/staging

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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• function Copyright
• function INTERFACE
• function INDEX

Annotated Snippet

static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr)
{
	return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back)
				<< 7);
}

/**
 * INTERFACE - convert IPD port to logical interface
 * @ipd_port: Port to check
 *
 * Returns Logical interface
 */
static inline int INTERFACE(int ipd_port)
{
	int interface;

	if (ipd_port == CVMX_PIP_NUM_INPUT_PORTS)
		return 10;
	interface = cvmx_helper_get_interface_num(ipd_port);
	if (interface >= 0)
		return interface;
	panic("Illegal ipd_port %d passed to %s\n", ipd_port, __func__);
}

/**
 * INDEX - convert IPD/PKO port number to the port's interface index
 * @ipd_port: Port to check
 *
 * Returns Index into interface port list
 */
static inline int INDEX(int ipd_port)
{
	return cvmx_helper_get_interface_index_num(ipd_port);
}

Annotation

• Detected declarations: `function Copyright`, `function INTERFACE`, `function INDEX`.
• Atlas domain: Driver Families / drivers/staging.
• Implementation status: source 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.