virtio.h File Reference

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Data Structures
struct	virtio_vring_t
struct	virtio_if_t
struct	virtio_main_t

Macros
#define	foreach_virtio_net_features
#define	foreach_virtio_if_flag
#define	VIRTIO_RING_FLAG_MASK_INT   1

Enumerations
enum	virtio_if_flag_t { foreach_virtio_if_flag }
enum	virtio_if_type_t { VIRTIO_IF_TYPE_TAP, VIRTIO_IF_N_TYPES }

Functions
clib_error_t *	virtio_vring_init (vlib_main_t *vm, virtio_if_t *vif, u16 idx, u16 sz)
clib_error_t *	virtio_vring_free (vlib_main_t *vm, virtio_if_t *vif, u32 idx)
void	virtio_free_used_desc (vlib_main_t *vm, virtio_vring_t *vring)

Variables
virtio_main_t	virtio_main
vnet_device_class_t	virtio_device_class
vlib_node_registration_t	virtio_input_node
	(constructor) VLIB_REGISTER_NODE (virtio_input_node) More...
format_function_t	format_virtio_device_name

Macro Definition Documentation

#define foreach_virtio_if_flag

Value:

_(0, ADMIN_UP, "admin-up")              \
  _(1, DELETING, "deleting")

Definition at line 56 of file virtio.h.

#define foreach_virtio_net_features

Value:

_ (VIRTIO_NET_F_CSUM, 0)        /* Host handles pkts w/ partial csum */ \
  _ (VIRTIO_NET_F_GUEST_CSUM, 1) /* Guest handles pkts w/ partial csum */ \
  _ (VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, 2) /* Dynamic offload configuration. */ \
  _ (VIRTIO_NET_F_MTU, 3)       /* Initial MTU advice. */ \
  _ (VIRTIO_NET_F_MAC, 5)       /* Host has given MAC address. */ \
  _ (VIRTIO_NET_F_GSO, 6)       /* Host handles pkts w/ any GSO. */ \
  _ (VIRTIO_NET_F_GUEST_TSO4, 7)        /* Guest can handle TSOv4 in. */ \
  _ (VIRTIO_NET_F_GUEST_TSO6, 8)        /* Guest can handle TSOv6 in. */ \
  _ (VIRTIO_NET_F_GUEST_ECN, 9) /* Guest can handle TSO[6] w/ ECN in. */ \
  _ (VIRTIO_NET_F_GUEST_UFO, 10)        /* Guest can handle UFO in. */ \
  _ (VIRTIO_NET_F_HOST_TSO4, 11)        /* Host can handle TSOv4 in. */ \
  _ (VIRTIO_NET_F_HOST_TSO6, 12)        /* Host can handle TSOv6 in. */ \
  _ (VIRTIO_NET_F_HOST_ECN, 13) /* Host can handle TSO[6] w/ ECN in. */ \
  _ (VIRTIO_NET_F_HOST_UFO, 14) /* Host can handle UFO in. */ \
  _ (VIRTIO_NET_F_MRG_RXBUF, 15)        /* Host can merge receive buffers. */ \
  _ (VIRTIO_NET_F_STATUS, 16)   /* virtio_net_config.status available */ \
  _ (VIRTIO_NET_F_CTRL_VQ, 17)  /* Control channel available */ \
  _ (VIRTIO_NET_F_CTRL_RX, 18)  /* Control channel RX mode support */ \
  _ (VIRTIO_NET_F_CTRL_VLAN, 19)        /* Control channel VLAN filtering */ \
  _ (VIRTIO_NET_F_CTRL_RX_EXTRA, 20)    /* Extra RX mode control support */ \
  _ (VIRTIO_NET_F_GUEST_ANNOUNCE, 21)   /* Guest can announce device on the network */ \
  _ (VIRTIO_NET_F_MQ, 22)               /* Device supports Receive Flow Steering */ \
  _ (VIRTIO_NET_F_CTRL_MAC_ADDR, 23)    /* Set MAC address */ \
  _ (VIRTIO_F_NOTIFY_ON_EMPTY, 24) \
  _ (VHOST_F_LOG_ALL, 26)      /* Log all write descriptors */ \
  _ (VIRTIO_F_ANY_LAYOUT, 27)  /* Can the device handle any descripor layout */ \
  _ (VIRTIO_RING_F_INDIRECT_DESC, 28)   /* Support indirect buffer descriptors */ \
  _ (VIRTIO_RING_F_EVENT_IDX, 29)       /* The Guest publishes the used index for which it expects an interrupt \
 * at the end of the avail ring. Host should ignore the avail->flags field. */ \
/* The Host publishes the avail index for which it expects a kick \
 * at the end of the used ring. Guest should ignore the used->flags field. */ \
  _ (VHOST_USER_F_PROTOCOL_FEATURES, 30) \
  _ (VIRTIO_F_VERSION_1, 32)

Definition at line 21 of file virtio.h.

#define VIRTIO_RING_FLAG_MASK_INT   1

Definition at line 84 of file virtio.h.

Enumeration Type Documentation

enum virtio_if_flag_t

Enumerator
foreach_virtio_if_flag

Definition at line 60 of file virtio.h.

enum virtio_if_type_t

Enumerator
VIRTIO_IF_TYPE_TAP
VIRTIO_IF_N_TYPES

Definition at line 67 of file virtio.h.

Function Documentation

void virtio_free_used_desc ( vlib_main_t *  vm, virtio_vring_t *  vring  )

inline

Definition at line 92 of file device.c.

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clib_error_t* virtio_vring_free	(	vlib_main_t *	vm,
		virtio_if_t *	vif,
		u32	idx
	)

Definition at line 155 of file virtio.c.

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clib_error_t* virtio_vring_init	(	vlib_main_t *	vm,
		virtio_if_t *	vif,
		u16	idx,
		u16	sz
	)

Definition at line 63 of file virtio.c.

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Variable Documentation

format_function_t format_virtio_device_name

Definition at line 137 of file virtio.h.

vnet_device_class_t virtio_device_class

vlib_node_registration_t virtio_input_node

(constructor) VLIB_REGISTER_NODE (virtio_input_node)

Definition at line 277 of file node.c.

virtio_main_t virtio_main

Definition at line 35 of file virtio.c.