virtqueue.c File Reference

#include <string.h>
#include <openamp/virtio.h>
#include <openamp/virtqueue.h>
#include <metal/atomic.h>
#include <metal/log.h>
#include <metal/alloc.h>

Functions
static void	vq_ring_init (struct virtqueue *, void *, int)
static void	vq_ring_update_avail (struct virtqueue *, uint16_t)
static uint16_t	vq_ring_add_buffer (struct virtqueue *, struct vring_desc *, uint16_t, struct virtqueue_buf *, int, int)
static int	vq_ring_enable_interrupt (struct virtqueue *, uint16_t)
static void	vq_ring_free_chain (struct virtqueue *, uint16_t)
static int	vq_ring_must_notify (struct virtqueue *vq)
static void	vq_ring_notify (struct virtqueue *vq)
static int	virtqueue_nused (struct virtqueue *vq)
static int	virtqueue_navail (struct virtqueue *vq)
static void *	virtqueue_phys_to_virt (struct virtqueue *vq, metal_phys_addr_t phys)
static metal_phys_addr_t	virtqueue_virt_to_phys (struct virtqueue *vq, void *buf)
int	virtqueue_create (struct virtio_device *virt_dev, unsigned short id, const char *name, struct vring_alloc_info *ring, void(*callback)(struct virtqueue *vq), void(*notify)(struct virtqueue *vq), struct virtqueue *vq)
int	virtqueue_add_buffer (struct virtqueue *vq, struct virtqueue_buf *buf_list, int readable, int writable, void *cookie)
void *	virtqueue_get_buffer (struct virtqueue *vq, uint32_t *len, uint16_t *idx)
uint32_t	virtqueue_get_buffer_length (struct virtqueue *vq, uint16_t idx)
void *	virtqueue_get_buffer_addr (struct virtqueue *vq, uint16_t idx)
void	virtqueue_free (struct virtqueue *vq)
void *	virtqueue_get_first_avail_buffer (struct virtqueue *vq, uint16_t *avail_idx, uint32_t *len)
void *	virtqueue_get_next_avail_buffer (struct virtqueue *vq, uint16_t idx, uint16_t *next_idx, uint32_t *next_len)
int	virtqueue_add_consumed_buffer (struct virtqueue *vq, uint16_t head_idx, uint32_t len)
int	virtqueue_enable_cb (struct virtqueue *vq)
void	virtqueue_disable_cb (struct virtqueue *vq)
void	virtqueue_kick (struct virtqueue *vq)
void	virtqueue_dump (struct virtqueue *vq)
uint32_t	virtqueue_get_desc_size (struct virtqueue *vq)
void	virtqueue_notification (struct virtqueue *vq)

Function Documentation

virtqueue_add_buffer()

int virtqueue_add_buffer	(	struct virtqueue *	vq,
		struct virtqueue_buf *	buf_list,
		int	readable,
		int	writable,
		void *	cookie
	)

virtqueue_add_consumed_buffer()

int virtqueue_add_consumed_buffer	(	struct virtqueue *	vq,
		uint16_t	head_idx,
		uint32_t	len
	)

virtqueue_create()

int virtqueue_create	(	struct virtio_device *	virt_dev,
		unsigned short	id,
		const char *	name,
		struct vring_alloc_info *	ring,
		void(*)(struct virtqueue *vq)	callback,
		void(*)(struct virtqueue *vq)	notify,
		struct virtqueue *	vq
	)

virtqueue_disable_cb()

void virtqueue_disable_cb

(

struct virtqueue *

vq

)

virtqueue_dump()

void virtqueue_dump

(

struct virtqueue *

vq

)

virtqueue_enable_cb()

int virtqueue_enable_cb

(

struct virtqueue *

vq

)

virtqueue_free()

void virtqueue_free

(

struct virtqueue *

vq

)

virtqueue_get_buffer()

void* virtqueue_get_buffer	(	struct virtqueue *	vq,
		uint32_t *	len,
		uint16_t *	idx
	)

virtqueue_get_buffer_addr()

void* virtqueue_get_buffer_addr	(	struct virtqueue *	vq,
		uint16_t	idx
	)

virtqueue_get_buffer_length()

uint32_t virtqueue_get_buffer_length	(	struct virtqueue *	vq,
		uint16_t	idx
	)

virtqueue_get_desc_size()

uint32_t virtqueue_get_desc_size

(

struct virtqueue *

vq

)

virtqueue_get_first_avail_buffer()

void* virtqueue_get_first_avail_buffer	(	struct virtqueue *	vq,
		uint16_t *	avail_idx,
		uint32_t *	len
	)

virtqueue_get_next_avail_buffer()

void* virtqueue_get_next_avail_buffer	(	struct virtqueue *	vq,
		uint16_t	idx,
		uint16_t *	next_idx,
		uint32_t *	next_len
	)

virtqueue_kick()

void virtqueue_kick

(

struct virtqueue *

vq

)

virtqueue_navail()

static int virtqueue_navail ( struct virtqueue *  vq )

static

virtqueue_notification()

void virtqueue_notification

(

struct virtqueue *

vq

)

virtqueue_nused()

static int virtqueue_nused ( struct virtqueue *  vq )

static

virtqueue_phys_to_virt()

static void* virtqueue_phys_to_virt ( struct virtqueue *  vq, metal_phys_addr_t  phys  )

inlinestatic

virtqueue_virt_to_phys()

static metal_phys_addr_t virtqueue_virt_to_phys ( struct virtqueue *  vq, void *  buf  )

inlinestatic

vq_ring_add_buffer()

static uint16_t vq_ring_add_buffer ( struct virtqueue *  vq, struct vring_desc *  desc, uint16_t  head_idx, struct virtqueue_buf *  buf_list, int  readable, int  writable  )

static

vq_ring_enable_interrupt()

static int vq_ring_enable_interrupt ( struct virtqueue *  vq, uint16_t  ndesc  )

static

vq_ring_free_chain()

static void vq_ring_free_chain ( struct virtqueue *  vq, uint16_t  desc_idx  )

static

vq_ring_init()

static void vq_ring_init ( struct virtqueue *  vq, void *  ring_mem, int  alignment  )

static

vq_ring_must_notify()

static int vq_ring_must_notify ( struct virtqueue *  vq )

static

vq_ring_notify()

static void vq_ring_notify ( struct virtqueue *  vq )

static

vq_ring_update_avail()

static void vq_ring_update_avail ( struct virtqueue *  vq, uint16_t  desc_idx  )

static