drivers/net/ethernet/amd/hplance.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/amd/hplance.h

Extension

.h

Size

1355 bytes

Lines

28

Domain

Driver Families

Bucket

drivers/net

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

Dependency Surface

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

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#define HPLANCE_ID		0x01		/* DIO register: ID byte */
#define HPLANCE_STATUS		0x03		/* DIO register: interrupt enable/status */

/* Control and status bits for the status register */
#define LE_IE 0x80                                /* interrupt enable */
#define LE_IR 0x40                                /* interrupt requested */
#define LE_LOCK 0x08                              /* lock status register */
#define LE_ACK 0x04                               /* ack of lock */
#define LE_JAB 0x02                               /* loss of tx clock (???) */
/* We can also extract the IPL from the status register with the standard
 * DIO_IPL(hplance) macro, or using dio_scodetoipl()
 */

/* These are the offsets for the DIO regs (hplance_reg), lance_ioreg,
 * memory and NVRAM:
 */
#define HPLANCE_IDOFF 0                           /* board baseaddr */
#define HPLANCE_REGOFF 0x4000                     /* lance registers */
#define HPLANCE_MEMOFF 0x8000                     /* struct lance_init_block */
#define HPLANCE_NVRAMOFF 0xC008                   /* etheraddress as one *nibble* per byte */

Annotation

• Atlas domain: Driver Families / drivers/net.
• 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.