include/uapi/linux/rio_cm_cdev.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/rio_cm_cdev.h

Extension

.h

Size

3248 bytes

Lines

80

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 rio_cm_channel
• struct rio_cm_msg
• struct rio_cm_accept

Annotated Snippet

struct rio_cm_channel {
	__u16 id;
	__u16 remote_channel;
	__u16 remote_destid;
	__u8 mport_id;
};

struct rio_cm_msg {
	__u16 ch_num;
	__u16 size;
	__u32 rxto;	/* receive timeout in mSec. 0 = blocking */
	__u64 msg;
};

struct rio_cm_accept {
	__u16 ch_num;
	__u16 pad0;
	__u32 wait_to;	/* accept timeout in mSec. 0 = blocking */
};

/* RapidIO Channelized Messaging Driver IOCTLs */
#define RIO_CM_IOC_MAGIC	'c'

#define RIO_CM_EP_GET_LIST_SIZE	_IOWR(RIO_CM_IOC_MAGIC, 1, __u32)
#define RIO_CM_EP_GET_LIST	_IOWR(RIO_CM_IOC_MAGIC, 2, __u32)
#define RIO_CM_CHAN_CREATE	_IOWR(RIO_CM_IOC_MAGIC, 3, __u16)
#define RIO_CM_CHAN_CLOSE	_IOW(RIO_CM_IOC_MAGIC, 4, __u16)
#define RIO_CM_CHAN_BIND	_IOW(RIO_CM_IOC_MAGIC, 5, struct rio_cm_channel)
#define RIO_CM_CHAN_LISTEN	_IOW(RIO_CM_IOC_MAGIC, 6, __u16)
#define RIO_CM_CHAN_ACCEPT	_IOWR(RIO_CM_IOC_MAGIC, 7, struct rio_cm_accept)
#define RIO_CM_CHAN_CONNECT	_IOW(RIO_CM_IOC_MAGIC, 8, struct rio_cm_channel)
#define RIO_CM_CHAN_SEND	_IOW(RIO_CM_IOC_MAGIC, 9, struct rio_cm_msg)
#define RIO_CM_CHAN_RECEIVE	_IOWR(RIO_CM_IOC_MAGIC, 10, struct rio_cm_msg)
#define RIO_CM_MPORT_GET_LIST	_IOWR(RIO_CM_IOC_MAGIC, 11, __u32)

#endif /* _RIO_CM_CDEV_H_ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct rio_cm_channel`, `struct rio_cm_msg`, `struct rio_cm_accept`.
• 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.