virtio_ring.h File Reference

#include <linux/types.h>
#include <linux/virtio_types.h>

Include dependency graph for virtio_ring.h:

Go to the source code of this file.

Classes
struct	vring_desc
struct	vring_avail
struct	vring_used_elem
struct	vring_used
struct	vring
struct	vring_packed_desc_event
struct	vring_packed_desc

Macros
#define	VRING_DESC_F_NEXT   1
#define	VRING_DESC_F_WRITE   2
#define	VRING_DESC_F_INDIRECT   4
#define	VRING_PACKED_DESC_F_AVAIL   7
#define	VRING_PACKED_DESC_F_USED   15
#define	VRING_USED_F_NO_NOTIFY   1
#define	VRING_AVAIL_F_NO_INTERRUPT   1
#define	VRING_PACKED_EVENT_FLAG_ENABLE   0x0
#define	VRING_PACKED_EVENT_FLAG_DISABLE   0x1
#define	VRING_PACKED_EVENT_FLAG_DESC   0x2
#define	VRING_PACKED_EVENT_F_WRAP_CTR   15
#define	VIRTIO_RING_F_INDIRECT_DESC   28
#define	VIRTIO_RING_F_EVENT_IDX   29
#define	VRING_AVAIL_ALIGN_SIZE   2
#define	VRING_USED_ALIGN_SIZE   4
#define	VRING_DESC_ALIGN_SIZE   16
#define	vring_used_event(vr)   ((vr)->avail->ring[(vr)->num])
#define	vring_avail_event(vr)   (*(__virtio16 *)&(vr)->used->ring[(vr)->num])

Functions
struct vring_used_elem	__attribute__ ((aligned(VRING_USED_ALIGN_SIZE))) vring_used_elem_t
struct vring_desc	__attribute__ ((aligned(VRING_DESC_ALIGN_SIZE))) vring_desc_t
struct vring_avail	__attribute__ ((aligned(VRING_AVAIL_ALIGN_SIZE))) vring_avail_t

Macro Definition Documentation

VIRTIO_RING_F_EVENT_IDX

#define VIRTIO_RING_F_EVENT_IDX   29

VIRTIO_RING_F_INDIRECT_DESC

#define VIRTIO_RING_F_INDIRECT_DESC   28

VRING_AVAIL_ALIGN_SIZE

#define VRING_AVAIL_ALIGN_SIZE   2

vring_avail_event

#define vring_avail_event

(

vr

)

(*(__virtio16 *)&(vr)->used->ring[(vr)->num])

VRING_AVAIL_F_NO_INTERRUPT

#define VRING_AVAIL_F_NO_INTERRUPT   1

VRING_DESC_ALIGN_SIZE

#define VRING_DESC_ALIGN_SIZE   16

VRING_DESC_F_INDIRECT

#define VRING_DESC_F_INDIRECT   4

VRING_DESC_F_NEXT

#define VRING_DESC_F_NEXT   1

VRING_DESC_F_WRITE

#define VRING_DESC_F_WRITE   2

VRING_PACKED_DESC_F_AVAIL

#define VRING_PACKED_DESC_F_AVAIL   7

VRING_PACKED_DESC_F_USED

#define VRING_PACKED_DESC_F_USED   15

VRING_PACKED_EVENT_F_WRAP_CTR

#define VRING_PACKED_EVENT_F_WRAP_CTR   15

VRING_PACKED_EVENT_FLAG_DESC

#define VRING_PACKED_EVENT_FLAG_DESC   0x2

VRING_PACKED_EVENT_FLAG_DISABLE

#define VRING_PACKED_EVENT_FLAG_DISABLE   0x1

VRING_PACKED_EVENT_FLAG_ENABLE

#define VRING_PACKED_EVENT_FLAG_ENABLE   0x0

VRING_USED_ALIGN_SIZE

#define VRING_USED_ALIGN_SIZE   4

vring_used_event

#define vring_used_event

(

vr

)

((vr)->avail->ring[(vr)->num])

VRING_USED_F_NO_NOTIFY

#define VRING_USED_F_NO_NOTIFY   1

Function Documentation

__attribute__() [1/3]

struct vring_avail __attribute__

(

(aligned(VRING_AVAIL_ALIGN_SIZE))

)

__attribute__() [2/3]

struct vring_desc __attribute__

(

(aligned(VRING_DESC_ALIGN_SIZE))

)

__attribute__() [3/3]

struct vring_used_elem __attribute__

(

(aligned(VRING_USED_ALIGN_SIZE))

)