drivers/net/fjes/fjes_regs.h
Source file repositories/reference/linux-study-clean/drivers/net/fjes/fjes_regs.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/net/fjes/fjes_regs.h- Extension
.h- Size
- 2935 bytes
- Lines
- 128
- 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
linux/bitops.h
Detected Declarations
struct fjes_hwenum REG_ICTL_MASKenum REG_IS_MASK
Annotated Snippet
#ifndef FJES_REGS_H_
#define FJES_REGS_H_
#include <linux/bitops.h>
#define XSCT_DEVICE_REGISTER_SIZE 0x1000
/* register offset */
/* Information registers */
#define XSCT_OWNER_EPID 0x0000 /* Owner EPID */
#define XSCT_MAX_EP 0x0004 /* Maximum EP */
/* Device Control registers */
#define XSCT_DCTL 0x0010 /* Device Control */
/* Command Control registers */
#define XSCT_CR 0x0020 /* Command request */
#define XSCT_CS 0x0024 /* Command status */
#define XSCT_SHSTSAL 0x0028 /* Share status address Low */
#define XSCT_SHSTSAH 0x002C /* Share status address High */
#define XSCT_REQBL 0x0034 /* Request Buffer length */
#define XSCT_REQBAL 0x0038 /* Request Buffer Address Low */
#define XSCT_REQBAH 0x003C /* Request Buffer Address High */
#define XSCT_RESPBL 0x0044 /* Response Buffer Length */
#define XSCT_RESPBAL 0x0048 /* Response Buffer Address Low */
#define XSCT_RESPBAH 0x004C /* Response Buffer Address High */
/* Interrupt Control registers */
#define XSCT_IS 0x0080 /* Interrupt status */
#define XSCT_IMS 0x0084 /* Interrupt mask set */
#define XSCT_IMC 0x0088 /* Interrupt mask clear */
#define XSCT_IG 0x008C /* Interrupt generator */
#define XSCT_ICTL 0x0090 /* Interrupt control */
/* register structure */
/* Information registers */
union REG_OWNER_EPID {
struct {
__le32 epid:16;
__le32:16;
} bits;
__le32 reg;
};
union REG_MAX_EP {
struct {
__le32 maxep:16;
__le32:16;
} bits;
__le32 reg;
};
/* Device Control registers */
union REG_DCTL {
struct {
__le32 reset:1;
__le32 rsv0:15;
__le32 rsv1:16;
} bits;
__le32 reg;
};
/* Command Control registers */
union REG_CR {
struct {
__le32 req_code:16;
__le32 err_info:14;
__le32 error:1;
__le32 req_start:1;
} bits;
__le32 reg;
};
union REG_CS {
struct {
__le32 req_code:16;
__le32 rsv0:14;
__le32 busy:1;
__le32 complete:1;
} bits;
__le32 reg;
};
/* Interrupt Control registers */
union REG_ICTL {
struct {
__le32 automak:1;
__le32 rsv0:31;
Annotation
- Immediate include surface: `linux/bitops.h`.
- Detected declarations: `struct fjes_hw`, `enum REG_ICTL_MASK`, `enum REG_IS_MASK`.
- 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.