include/uapi/linux/ndctl.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/ndctl.h

Extension

.h

Size

6651 bytes

Lines

256

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct nd_cmd_dimm_flags
• struct nd_cmd_get_config_size
• struct nd_cmd_get_config_data_hdr
• struct nd_cmd_set_config_hdr
• struct nd_cmd_vendor_hdr
• struct nd_cmd_vendor_tail
• struct nd_cmd_ars_cap
• struct nd_cmd_ars_start
• struct nd_cmd_ars_status
• struct nd_ars_record
• struct nd_cmd_clear_error
• struct nd_cmd_pkg
• enum nd_driver_flags
• enum ars_masks

Annotated Snippet

struct nd_cmd_dimm_flags {
	__u32 status;
	__u32 flags;
} __packed;

struct nd_cmd_get_config_size {
	__u32 status;
	__u32 config_size;
	__u32 max_xfer;
} __packed;

struct nd_cmd_get_config_data_hdr {
	__u32 in_offset;
	__u32 in_length;
	__u32 status;
	__u8 out_buf[];
} __packed;

struct nd_cmd_set_config_hdr {
	__u32 in_offset;
	__u32 in_length;
	__u8 in_buf[];
} __packed;

struct nd_cmd_vendor_hdr {
	__u32 opcode;
	__u32 in_length;
	__u8 in_buf[];
} __packed;

struct nd_cmd_vendor_tail {
	__u32 status;
	__u32 out_length;
	__u8 out_buf[];
} __packed;

struct nd_cmd_ars_cap {
	__u64 address;
	__u64 length;
	__u32 status;
	__u32 max_ars_out;
	__u32 clear_err_unit;
	__u16 flags;
	__u16 reserved;
} __packed;

struct nd_cmd_ars_start {
	__u64 address;
	__u64 length;
	__u16 type;
	__u8 flags;
	__u8 reserved[5];
	__u32 status;
	__u32 scrub_time;
} __packed;

struct nd_cmd_ars_status {
	__u32 status;
	__u32 out_length;
	__u64 address;
	__u64 length;
	__u64 restart_address;
	__u64 restart_length;
	__u16 type;
	__u16 flags;
	__u32 num_records;
	struct nd_ars_record {
		__u32 handle;
		__u32 reserved;
		__u64 err_address;
		__u64 length;
	} __packed records[];
} __packed;

struct nd_cmd_clear_error {
	__u64 address;
	__u64 length;
	__u32 status;
	__u8 reserved[4];
	__u64 cleared;
} __packed;

enum {
	ND_CMD_IMPLEMENTED = 0,

	/* bus commands */
	ND_CMD_ARS_CAP = 1,
	ND_CMD_ARS_START = 2,
	ND_CMD_ARS_STATUS = 3,
	ND_CMD_CLEAR_ERROR = 4,

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct nd_cmd_dimm_flags`, `struct nd_cmd_get_config_size`, `struct nd_cmd_get_config_data_hdr`, `struct nd_cmd_set_config_hdr`, `struct nd_cmd_vendor_hdr`, `struct nd_cmd_vendor_tail`, `struct nd_cmd_ars_cap`, `struct nd_cmd_ars_start`, `struct nd_cmd_ars_status`, `struct nd_ars_record`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.