vhost_user_input.c File Reference

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Macros
#define	VHOST_USER_DOWN_DISCARD_COUNT   256
#define	VHOST_USER_RX_BUFFER_STARVATION   32
#define	VHOST_USER_RX_COPY_THRESHOLD   64
#define	foreach_vhost_user_input_func_error

Enumerations
enum	vhost_user_input_func_error_t { VHOST_USER_INPUT_FUNC_N_ERROR }

Functions
static_always_inline void	vhost_user_rx_trace (vhost_trace_t *t, vhost_user_intf_t *vui, u16 qid, vlib_buffer_t *b, vhost_user_vring_t *txvq, u16 last_avail_idx)
static_always_inline u32	vhost_user_input_copy (vhost_user_intf_t *vui, vhost_copy_t *cpy, u16 copy_len, u32 *map_hint)
static_always_inline u32	vhost_user_rx_discard_packet (vlib_main_t *vm, vhost_user_intf_t *vui, vhost_user_vring_t *txvq, u32 discard_max)
	Try to discard packets from the tx ring (VPP RX path). More...
static_always_inline void	vhost_user_input_rewind_buffers (vlib_main_t *vm, vhost_cpu_t *cpu, vlib_buffer_t *b_head)
static_always_inline u32	vhost_user_if_input (vlib_main_t *vm, vhost_user_main_t *vum, vhost_user_intf_t *vui, u16 qid, vlib_node_runtime_t *node, vnet_hw_interface_rx_mode mode)
VLIB_NODE_FN()	vhost_user_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)

Variables
vlib_node_registration_t	vhost_user_input_node
	(constructor) VLIB_REGISTER_NODE (vhost_user_input_node) More...
static __clib_unused char *	vhost_user_input_func_error_strings []

Macro Definition Documentation

foreach_vhost_user_input_func_error

#define foreach_vhost_user_input_func_error

Value:

_(NO_ERROR, "no error")  \
  _(NO_BUFFER, "no available buffer")  \
  _(MMAP_FAIL, "mmap failure")  \
  _(INDIRECT_OVERFLOW, "indirect descriptor overflows table")  \
  _(UNDERSIZED_FRAME, "undersized ethernet frame received (< 14 bytes)") \
  _(FULL_RX_QUEUE, "full rx queue (possible driver tx drop)")

Definition at line 70 of file vhost_user_input.c.

VHOST_USER_DOWN_DISCARD_COUNT

#define VHOST_USER_DOWN_DISCARD_COUNT   256

Definition at line 50 of file vhost_user_input.c.

VHOST_USER_RX_BUFFER_STARVATION

#define VHOST_USER_RX_BUFFER_STARVATION   32

Definition at line 56 of file vhost_user_input.c.

VHOST_USER_RX_COPY_THRESHOLD

#define VHOST_USER_RX_COPY_THRESHOLD   64

Definition at line 66 of file vhost_user_input.c.

Enumeration Type Documentation

vhost_user_input_func_error_t

enum vhost_user_input_func_error_t

Enumerator
VHOST_USER_INPUT_FUNC_N_ERROR

Definition at line 78 of file vhost_user_input.c.

Function Documentation

vhost_user_if_input()

static_always_inline u32 vhost_user_if_input	(	vlib_main_t *	vm,
		vhost_user_main_t *	vum,
		vhost_user_intf_t *	vui,
		u16	qid,
		vlib_node_runtime_t *	node,
		vnet_hw_interface_rx_mode	mode
	)

Definition at line 247 of file vhost_user_input.c.

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vhost_user_input_copy()

static_always_inline u32 vhost_user_input_copy	(	vhost_user_intf_t *	vui,
		vhost_copy_t *	cpy,
		u16	copy_len,
		u32 *	map_hint
	)

Definition at line 139 of file vhost_user_input.c.

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vhost_user_input_node()

VLIB_NODE_FN() vhost_user_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 639 of file vhost_user_input.c.

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vhost_user_input_rewind_buffers()

static_always_inline void vhost_user_input_rewind_buffers	(	vlib_main_t *	vm,
		vhost_cpu_t *	cpu,
		vlib_buffer_t *	b_head
	)

Definition at line 228 of file vhost_user_input.c.

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vhost_user_rx_discard_packet()

static_always_inline u32 vhost_user_rx_discard_packet	(	vlib_main_t *	vm,
		vhost_user_intf_t *	vui,
		vhost_user_vring_t *	txvq,
		u32	discard_max
	)

Try to discard packets from the tx ring (VPP RX path).

Returns the number of discarded packets.

Definition at line 187 of file vhost_user_input.c.

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vhost_user_rx_trace()

static_always_inline void vhost_user_rx_trace	(	vhost_trace_t *	t,
		vhost_user_intf_t *	vui,
		u16	qid,
		vlib_buffer_t *	b,
		vhost_user_vring_t *	txvq,
		u16	last_avail_idx
	)

Definition at line 93 of file vhost_user_input.c.

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Variable Documentation

vhost_user_input_func_error_strings

__clib_unused char* vhost_user_input_func_error_strings[]

static

Initial value:

= {
#define _(n,s) 
  foreach_vhost_user_input_func_error

}

Definition at line 86 of file vhost_user_input.c.

vhost_user_input_node

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 666 of file vhost_user_input.c.