vhost_user.h File Reference

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Data Structures
struct	vhost_user_memory_region
struct	vhost_user_memory
struct	vhost_user_log
struct	vhost_user_msg
struct	vhost_user_vring_t
struct	vhost_user_intf_t
struct	vhost_copy_t
struct	vhost_trace_t
struct	vhost_cpu_t
struct	vhost_user_main_t
struct	vhost_user_intf_details_t

Macros
#define	VHOST_MEMORY_MAX_NREGIONS   8
#define	VHOST_USER_MSG_HDR_SZ   12
#define	VHOST_VRING_MAX_SIZE   32768
#define	VHOST_VRING_MAX_N   16
#define	VHOST_VRING_IDX_RX(qid)   (2*qid)
#define	VHOST_VRING_IDX_TX(qid)   (2*qid + 1)
#define	VHOST_USER_VRING_NOFD_MASK   0x100
#define	VIRTQ_DESC_F_NEXT   1
#define	VIRTQ_DESC_F_INDIRECT   4
#define	VHOST_USER_REPLY_MASK   (0x1 << 2)
#define	VHOST_USER_PROTOCOL_F_MQ   0
#define	VHOST_USER_PROTOCOL_F_LOG_SHMFD   1
#define	VHOST_VRING_F_LOG   0
#define	VHOST_USER_F_PROTOCOL_FEATURES   30
#define	VHOST_USER_PROTOCOL_FEATURES
#define	VIRTIO_NET_CTRL_MQ   4
#define	VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET   0
#define	VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN   1
#define	VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX   0x8000
#define	VRING_USED_F_NO_NOTIFY   1
#define	VRING_AVAIL_F_NO_INTERRUPT   1
#define	vu_log_debug(dev, f, ...)
#define	vu_log_warn(dev, f, ...)
#define	vu_log_err(dev, f, ...)
#define	UNIX_GET_FD(unixfd_idx)
#define	foreach_virtio_trace_flags
#define	foreach_virtio_net_feature
#define	VHOST_USER_EVENT_START_TIMER   1
#define	VHOST_USER_EVENT_STOP_TIMER   2
#define	VHOST_USER_RX_BUFFERS_N   (2 * VLIB_FRAME_SIZE + 2)
#define	VHOST_USER_COPY_ARRAY_N   (4 * VLIB_FRAME_SIZE)

Typedefs
typedef enum vhost_user_req	vhost_user_req_t

Enumerations
enum	virtio_trace_flag_t { foreach_virtio_trace_flags }
enum	virtio_net_feature_t { foreach_virtio_net_feature }
enum	vhost_user_req {   VHOST_USER_NONE = 0, VHOST_USER_GET_FEATURES = 1, VHOST_USER_SET_FEATURES = 2, VHOST_USER_SET_OWNER = 3,   VHOST_USER_RESET_OWNER = 4, VHOST_USER_SET_MEM_TABLE = 5, VHOST_USER_SET_LOG_BASE = 6, VHOST_USER_SET_LOG_FD = 7,   VHOST_USER_SET_VRING_NUM = 8, VHOST_USER_SET_VRING_ADDR = 9, VHOST_USER_SET_VRING_BASE = 10, VHOST_USER_GET_VRING_BASE = 11,   VHOST_USER_SET_VRING_KICK = 12, VHOST_USER_SET_VRING_CALL = 13, VHOST_USER_SET_VRING_ERR = 14, VHOST_USER_GET_PROTOCOL_FEATURES = 15,   VHOST_USER_SET_PROTOCOL_FEATURES = 16, VHOST_USER_GET_QUEUE_NUM = 17, VHOST_USER_SET_VRING_ENABLE = 18, VHOST_USER_MAX }

Functions
int	vhost_user_create_if (vnet_main_t *vnm, vlib_main_t *vm, const char *sock_filename, u8 is_server, u32 *sw_if_index, u64 feature_mask, u8 renumber, u32 custom_dev_instance, u8 *hwaddr)
int	vhost_user_modify_if (vnet_main_t *vnm, vlib_main_t *vm, const char *sock_filename, u8 is_server, u32 sw_if_index, u64 feature_mask, u8 renumber, u32 custom_dev_instance)
int	vhost_user_delete_if (vnet_main_t *vnm, vlib_main_t *vm, u32 sw_if_index)
int	vhost_user_dump_ifs (vnet_main_t *vnm, vlib_main_t *vm, vhost_user_intf_details_t **out_vuids)

Variables
u64	guest_phys_addr
u64	memory_size
u64	userspace_addr
u64	mmap_offset
u32	nregions
u32	padding
vhost_user_memory_region_t	regions [VHOST_MEMORY_MAX_NREGIONS]
u64	size
u64	offset
vhost_user_req_t	request
u32	flags
union {
u64   u64
vhost_vring_state_t   state
vhost_vring_addr_t   addr
vhost_user_memory_t   memory
vhost_user_log_t   log
};
vlib_node_registration_t	vhost_user_send_interrupt_node
	(constructor) VLIB_REGISTER_NODE (vhost_user_send_interrupt_node) More...
vnet_device_class_t	vhost_user_device_class
vlib_node_registration_t	vhost_user_input_node
	(constructor) VLIB_REGISTER_NODE (vhost_user_input_node) More...
vhost_user_main_t	vhost_user_main

Macro Definition Documentation

#define foreach_virtio_net_feature

Value:

_ (VIRTIO_NET_F_MRG_RXBUF, 15)         \
 _ (VIRTIO_NET_F_CTRL_VQ, 17)           \
 _ (VIRTIO_NET_F_GUEST_ANNOUNCE, 21)    \
 _ (VIRTIO_NET_F_MQ, 22)                \
 _ (VHOST_F_LOG_ALL, 26)                \
 _ (VIRTIO_F_ANY_LAYOUT, 27)            \
 _ (VIRTIO_F_INDIRECT_DESC, 28)         \
 _ (VHOST_USER_F_PROTOCOL_FEATURES, 30) \
 _ (VIRTIO_F_VERSION_1, 32)

Definition at line 87 of file vhost_user.h.

#define foreach_virtio_trace_flags

Value:

_ (SIMPLE_CHAINED, 0, "Simple descriptor chaining") \
  _ (SINGLE_DESC,  1, "Single descriptor packet") \
  _ (INDIRECT, 2, "Indirect descriptor") \
  _ (MAP_ERROR, 4, "Memory mapping error")

Definition at line 74 of file vhost_user.h.

#define UNIX_GET_FD

(

unixfd_idx

)

Value:

({ \
    typeof(unixfd_idx) __unixfd_idx = (unixfd_idx); \
    (__unixfd_idx != ~0) ? \
        pool_elt_at_index (file_main.file_pool, \
                           __unixfd_idx)->file_descriptor : -1; })

Definition at line 68 of file vhost_user.h.

#define VHOST_MEMORY_MAX_NREGIONS   8

Definition at line 19 of file vhost_user.h.

#define VHOST_USER_COPY_ARRAY_N   (4 * VLIB_FRAME_SIZE)

Definition at line 324 of file vhost_user.h.

#define VHOST_USER_EVENT_START_TIMER   1

Definition at line 263 of file vhost_user.h.

#define VHOST_USER_EVENT_STOP_TIMER   2

Definition at line 264 of file vhost_user.h.

#define VHOST_USER_F_PROTOCOL_FEATURES   30

Definition at line 35 of file vhost_user.h.

#define VHOST_USER_MSG_HDR_SZ   12

Definition at line 20 of file vhost_user.h.

#define VHOST_USER_PROTOCOL_F_LOG_SHMFD   1

Definition at line 32 of file vhost_user.h.

#define VHOST_USER_PROTOCOL_F_MQ   0

Definition at line 31 of file vhost_user.h.

#define VHOST_USER_PROTOCOL_FEATURES

Value:

((1ULL << VHOST_USER_PROTOCOL_F_MQ) |   \
                                        (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD))

Definition at line 36 of file vhost_user.h.

#define VHOST_USER_REPLY_MASK   (0x1 << 2)

Definition at line 29 of file vhost_user.h.

#define VHOST_USER_RX_BUFFERS_N   (2 * VLIB_FRAME_SIZE + 2)

Definition at line 323 of file vhost_user.h.

#define VHOST_USER_VRING_NOFD_MASK   0x100

Definition at line 26 of file vhost_user.h.

#define VHOST_VRING_F_LOG   0

Definition at line 33 of file vhost_user.h.

#define VHOST_VRING_IDX_RX

(

qid

)

(2*qid)

Definition at line 23 of file vhost_user.h.

#define VHOST_VRING_IDX_TX

(

qid

)

(2*qid + 1)

Definition at line 24 of file vhost_user.h.

#define VHOST_VRING_MAX_N   16

Definition at line 22 of file vhost_user.h.

#define VHOST_VRING_MAX_SIZE   32768

Definition at line 21 of file vhost_user.h.

#define VIRTIO_NET_CTRL_MQ   4

Definition at line 40 of file vhost_user.h.

#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX   0x8000

Definition at line 43 of file vhost_user.h.

#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN   1

Definition at line 42 of file vhost_user.h.

#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET   0

Definition at line 41 of file vhost_user.h.

#define VIRTQ_DESC_F_INDIRECT   4

Definition at line 28 of file vhost_user.h.

#define VIRTQ_DESC_F_NEXT   1

Definition at line 27 of file vhost_user.h.

#define VRING_AVAIL_F_NO_INTERRUPT   1

Definition at line 46 of file vhost_user.h.

#define VRING_USED_F_NO_NOTIFY   1

Definition at line 45 of file vhost_user.h.

#define vu_log_debug	(		dev,
			f,
			...
	)

Value:

{                                                                             \
  vlib_log(VLIB_LOG_LEVEL_DEBUG, vhost_user_main.log_default, "%U: " f,       \
           format_vnet_hw_if_index_name, vnet_get_main(),                     \
           dev->hw_if_index, ##__VA_ARGS__);                                  \
};

Definition at line 48 of file vhost_user.h.

#define vu_log_err	(		dev,
			f,
			...
	)

Value:

{                                                                             \
  vlib_log(VLIB_LOG_LEVEL_ERR, vhost_user_main.log_default, "%U: " f,         \
           format_vnet_hw_if_index_name, vnet_get_main(),                     \
           dev->hw_if_index, ##__VA_ARGS__);                                  \
};

Definition at line 61 of file vhost_user.h.

#define vu_log_warn	(		dev,
			f,
			...
	)

Value:

{                                                                             \
  vlib_log(VLIB_LOG_LEVEL_WARNING, vhost_user_main.log_default, "%U: " f,     \
           format_vnet_hw_if_index_name, vnet_get_main(),                     \
           dev->hw_if_index, ##__VA_ARGS__);                                  \
};

Definition at line 55 of file vhost_user.h.

Typedef Documentation

typedef enum vhost_user_req vhost_user_req_t

Enumeration Type Documentation

enum vhost_user_req

Enumerator
VHOST_USER_NONE
VHOST_USER_GET_FEATURES
VHOST_USER_SET_FEATURES
VHOST_USER_SET_OWNER
VHOST_USER_RESET_OWNER
VHOST_USER_SET_MEM_TABLE
VHOST_USER_SET_LOG_BASE
VHOST_USER_SET_LOG_FD
VHOST_USER_SET_VRING_NUM
VHOST_USER_SET_VRING_ADDR
VHOST_USER_SET_VRING_BASE
VHOST_USER_GET_VRING_BASE
VHOST_USER_SET_VRING_KICK
VHOST_USER_SET_VRING_CALL
VHOST_USER_SET_VRING_ERR
VHOST_USER_GET_PROTOCOL_FEATURES
VHOST_USER_SET_PROTOCOL_FEATURES
VHOST_USER_GET_QUEUE_NUM
VHOST_USER_SET_VRING_ENABLE
VHOST_USER_MAX

Definition at line 149 of file vhost_user.h.

enum virtio_net_feature_t

Enumerator
foreach_virtio_net_feature

Definition at line 98 of file vhost_user.h.

enum virtio_trace_flag_t

Enumerator
foreach_virtio_trace_flags

Definition at line 80 of file vhost_user.h.

Function Documentation

int vhost_user_create_if	(	vnet_main_t *	vnm,
		vlib_main_t *	vm,
		const char *	sock_filename,
		u8	is_server,
		u32 *	sw_if_index,
		u64	feature_mask,
		u8	renumber,
		u32	custom_dev_instance,
		u8 *	hwaddr
	)

Definition at line 1459 of file vhost_user.c.

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int vhost_user_delete_if	(	vnet_main_t *	vnm,
		vlib_main_t *	vm,
		u32	sw_if_index
	)

Definition at line 1244 of file vhost_user.c.

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int vhost_user_dump_ifs	(	vnet_main_t *	vnm,
		vlib_main_t *	vm,
		vhost_user_intf_details_t **	out_vuids
	)

Definition at line 1685 of file vhost_user.c.

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int vhost_user_modify_if	(	vnet_main_t *	vnm,
		vlib_main_t *	vm,
		const char *	sock_filename,
		u8	is_server,
		u32	sw_if_index,
		u64	feature_mask,
		u8	renumber,
		u32	custom_dev_instance
	)

Definition at line 1522 of file vhost_user.c.

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Variable Documentation

union { ... }

vhost_vring_addr_t addr

Definition at line 121 of file vhost_user.h.

u32 flags

Definition at line 115 of file vhost_user.h.

u64 guest_phys_addr

Definition at line 114 of file vhost_user.h.

vhost_user_log_t log

Definition at line 123 of file vhost_user.h.

vhost_user_memory_t memory

Definition at line 122 of file vhost_user.h.

u64 memory_size

Definition at line 115 of file vhost_user.h.

u64 mmap_offset

Definition at line 117 of file vhost_user.h.

u32 nregions

Definition at line 114 of file vhost_user.h.

u64 offset

Definition at line 115 of file vhost_user.h.

u32 padding

Definition at line 115 of file vhost_user.h.

vhost_user_memory_region_t regions[VHOST_MEMORY_MAX_NREGIONS]

Definition at line 116 of file vhost_user.h.

vhost_user_req_t request

Definition at line 114 of file vhost_user.h.

u32 size

Definition at line 114 of file vhost_user.h.

vhost_vring_state_t state

Definition at line 120 of file vhost_user.h.

u64 u64

Definition at line 119 of file vhost_user.h.

u64 userspace_addr

Definition at line 116 of file vhost_user.h.

vnet_device_class_t vhost_user_device_class

Definition at line 56 of file vhost_user_output.c.

vlib_node_registration_t vhost_user_input_node

Initial value:

= {
  .type = VLIB_NODE_TYPE_INPUT,
  .name = "vhost-user-input",
  .sibling_of = "device-input",

  
  .state = VLIB_NODE_STATE_DISABLED,

  .format_buffer = format_ethernet_header_with_length,
  .format_trace = format_vhost_trace,

  .n_errors = VHOST_USER_INPUT_FUNC_N_ERROR,
  .error_strings = vhost_user_input_func_error_strings,
}

(constructor) VLIB_REGISTER_NODE (vhost_user_input_node)

Definition at line 658 of file vhost_user_input.c.

vhost_user_main_t vhost_user_main

Definition at line 56 of file vhost_user.c.

vlib_node_registration_t vhost_user_send_interrupt_node

(constructor) VLIB_REGISTER_NODE (vhost_user_send_interrupt_node)

Definition at line 53 of file vhost_user.c.