buffer.c File Reference

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Macros
#define	VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA   16384
#define	VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA_UNPRIV   8192

Functions
	STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, template_end, 64)
static void	buffer_gauges_update_cached_fn (stat_segment_directory_entry_t *e, u32 index)
static void	buffer_gauges_update_available_fn (stat_segment_directory_entry_t *e, u32 index)
static void	buffer_gauges_update_used_fn (stat_segment_directory_entry_t *e, u32 index)
uword	vlib_buffer_length_in_chain_slow_path (vlib_main_t *vm, vlib_buffer_t *b_first)
u8 *	format_vlib_buffer_no_chain (u8 *s, va_list *args)
u8 *	format_vlib_buffer (u8 *s, va_list *args)
u8 *	format_vlib_buffer_and_data (u8 *s, va_list *args)
static u8 *	format_vlib_buffer_known_state (u8 *s, va_list *args)
u8 *	format_vlib_buffer_contents (u8 *s, va_list *va)
static u8 *	vlib_validate_buffer_helper (vlib_main_t *vm, u32 bi, uword follow_buffer_next, uword **unique_hash)
u8 *	vlib_validate_buffer (vlib_main_t *vm, u32 bi, uword follow_buffer_next)
u8 *	vlib_validate_buffers (vlib_main_t *vm, u32 *buffers, uword next_buffer_stride, uword n_buffers, vlib_buffer_known_state_t known_state, uword follow_buffer_next)
void	vlib_buffer_validate_alloc_free (vlib_main_t *vm, u32 *buffers, uword n_buffers, vlib_buffer_known_state_t expected_state)
void	vlib_packet_template_init (vlib_main_t *vm, vlib_packet_template_t *t, void *packet_data, uword n_packet_data_bytes, uword min_n_buffers_each_alloc, char *fmt,...)
void *	vlib_packet_template_get_packet (vlib_main_t *vm, vlib_packet_template_t *t, u32 *bi_result)
int	vlib_buffer_add_data (vlib_main_t *vm, u32 *buffer_index, void *data, u32 n_data_bytes)
u16	vlib_buffer_chain_append_data_with_alloc (vlib_main_t *vm, vlib_buffer_t *first, vlib_buffer_t **last, void *data, u16 data_len)
static uword	vlib_buffer_alloc_size (uword ext_hdr_size, uword data_size)
u8	vlib_buffer_pool_create (vlib_main_t *vm, char *name, u32 data_size, u32 physmem_map_index)
static u8 *	format_vlib_buffer_pool (u8 *s, va_list *va)
static clib_error_t *	show_buffers (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
clib_error_t *	vlib_buffer_worker_init (vlib_main_t *vm)
	VLIB_WORKER_INIT_FUNCTION (vlib_buffer_worker_init)
static clib_error_t *	vlib_buffer_main_init_numa_alloc (struct vlib_main_t *vm, u32 numa_node, u32 *physmem_map_index, clib_mem_page_sz_t log2_page_size, u8 unpriv)
static clib_error_t *	vlib_buffer_main_init_numa_node (struct vlib_main_t *vm, u32 numa_node, u8 *index)
void	vlib_buffer_main_alloc (vlib_main_t *vm)
static u32	buffer_get_cached (vlib_buffer_pool_t *bp)
static vlib_buffer_pool_t *	buffer_get_by_index (vlib_buffer_main_t *bm, u32 index)
clib_error_t *	vlib_buffer_main_init (struct vlib_main_t *vm)
static clib_error_t *	vlib_buffers_configure (vlib_main_t *vm, unformat_input_t *input)

Variables
static vlib_cli_command_t	show_buffers_command
	(constructor) VLIB_CLI_COMMAND (show_buffers_command) More...

Detailed Description

Allocate/free network buffers.

Definition in file buffer.c.

Macro Definition Documentation

VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA

#define VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA   16384

Definition at line 51 of file buffer.c.

VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA_UNPRIV

#define VLIB_BUFFER_DEFAULT_BUFFERS_PER_NUMA_UNPRIV   8192

Definition at line 52 of file buffer.c.

Function Documentation

buffer_gauges_update_available_fn()

static void buffer_gauges_update_available_fn ( stat_segment_directory_entry_t *  e, u32  index  )

static

Definition at line 806 of file buffer.c.

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buffer_gauges_update_cached_fn()

static void buffer_gauges_update_cached_fn ( stat_segment_directory_entry_t *  e, u32  index  )

static

Definition at line 818 of file buffer.c.

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buffer_gauges_update_used_fn()

static void buffer_gauges_update_used_fn ( stat_segment_directory_entry_t *  e, u32  index  )

static

Definition at line 795 of file buffer.c.

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buffer_get_by_index()

static vlib_buffer_pool_t* buffer_get_by_index ( vlib_buffer_main_t *  bm, u32  index  )

static

Definition at line 784 of file buffer.c.

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buffer_get_cached()

static u32 buffer_get_cached ( vlib_buffer_pool_t *  bp )

static

Definition at line 766 of file buffer.c.

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format_vlib_buffer()

u8* format_vlib_buffer	(	u8 *	s,
		va_list *	args
	)

Definition at line 125 of file buffer.c.

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format_vlib_buffer_and_data()

u8* format_vlib_buffer_and_data	(	u8 *	s,
		va_list *	args
	)

Definition at line 148 of file buffer.c.

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format_vlib_buffer_contents()

u8* format_vlib_buffer_contents	(	u8 *	s,
		va_list *	va
	)

Definition at line 188 of file buffer.c.

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format_vlib_buffer_known_state()

static u8* format_vlib_buffer_known_state ( u8 *  s, va_list *  args  )

static

Definition at line 160 of file buffer.c.

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format_vlib_buffer_no_chain()

u8* format_vlib_buffer_no_chain	(	u8 *	s,
		va_list *	args
	)

Definition at line 95 of file buffer.c.

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format_vlib_buffer_pool()

static u8* format_vlib_buffer_pool ( u8 *  s, va_list *  va  )

static

Definition at line 592 of file buffer.c.

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show_buffers()

static clib_error_t* show_buffers ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 619 of file buffer.c.

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STATIC_ASSERT_OFFSET_OF()

STATIC_ASSERT_OFFSET_OF	(	vlib_buffer_t	,
		template_end	,
		64
	)

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vlib_buffer_add_data()

int vlib_buffer_add_data	(	vlib_main_t *	vm,
		u32 *	buffer_index,
		void *	data,
		u32	n_data_bytes
	)

Definition at line 398 of file buffer.c.

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vlib_buffer_alloc_size()

static uword vlib_buffer_alloc_size ( uword  ext_hdr_size, uword  data_size  )

static

Definition at line 485 of file buffer.c.

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vlib_buffer_chain_append_data_with_alloc()

u16 vlib_buffer_chain_append_data_with_alloc	(	vlib_main_t *	vm,
		vlib_buffer_t *	first,
		vlib_buffer_t **	last,
		void *	data,
		u16	data_len
	)

Definition at line 453 of file buffer.c.

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vlib_buffer_length_in_chain_slow_path()

uword vlib_buffer_length_in_chain_slow_path	(	vlib_main_t *	vm,
		vlib_buffer_t *	b_first
	)

Definition at line 78 of file buffer.c.

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vlib_buffer_main_alloc()

void vlib_buffer_main_alloc

(

vlib_main_t *

vm

)

Definition at line 753 of file buffer.c.

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vlib_buffer_main_init()

clib_error_t* vlib_buffer_main_init

(

struct vlib_main_t *

vm

)

Definition at line 829 of file buffer.c.

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vlib_buffer_main_init_numa_alloc()

static clib_error_t* vlib_buffer_main_init_numa_alloc ( struct vlib_main_t *  vm, u32  numa_node, u32 *  physmem_map_index, clib_mem_page_sz_t  log2_page_size, u8  unpriv  )

static

Definition at line 665 of file buffer.c.

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vlib_buffer_main_init_numa_node()

static clib_error_t* vlib_buffer_main_init_numa_node ( struct vlib_main_t *  vm, u32  numa_node, u8 *  index  )

static

Definition at line 702 of file buffer.c.

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vlib_buffer_pool_create()

u8 vlib_buffer_pool_create	(	vlib_main_t *	vm,
		char *	name,
		u32	data_size,
		u32	physmem_map_index
	)

Definition at line 498 of file buffer.c.

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vlib_buffer_validate_alloc_free()

void vlib_buffer_validate_alloc_free	(	vlib_main_t *	vm,
		u32 *	buffers,
		uword	n_buffers,
		vlib_buffer_known_state_t	expected_state
	)

Definition at line 315 of file buffer.c.

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vlib_buffer_worker_init()

clib_error_t* vlib_buffer_worker_init

(

vlib_main_t *

vm

)

Definition at line 644 of file buffer.c.

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vlib_buffers_configure()

static clib_error_t* vlib_buffers_configure ( vlib_main_t *  vm, unformat_input_t *  input  )

static

Definition at line 926 of file buffer.c.

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vlib_packet_template_get_packet()

void* vlib_packet_template_get_packet	(	vlib_main_t *	vm,
		vlib_packet_template_t *	t,
		u32 *	bi_result
	)

Definition at line 377 of file buffer.c.

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vlib_packet_template_init()

void vlib_packet_template_init	(	vlib_main_t *	vm,
		vlib_packet_template_t *	t,
		void *	packet_data,
		uword	n_packet_data_bytes,
		uword	min_n_buffers_each_alloc,
		char *	fmt,
			...
	)

Definition at line 355 of file buffer.c.

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vlib_validate_buffer()

u8* vlib_validate_buffer	(	vlib_main_t *	vm,
		u32	bi,
		uword	follow_buffer_next
	)

Definition at line 254 of file buffer.c.

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vlib_validate_buffer_helper()

static u8* vlib_validate_buffer_helper ( vlib_main_t *  vm, u32  bi, uword  follow_buffer_next, uword **  unique_hash  )

static

Definition at line 205 of file buffer.c.

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vlib_validate_buffers()

u8* vlib_validate_buffers	(	vlib_main_t *	vm,
		u32 *	buffers,
		uword	next_buffer_stride,
		uword	n_buffers,
		vlib_buffer_known_state_t	known_state,
		uword	follow_buffer_next
	)

Definition at line 261 of file buffer.c.

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VLIB_WORKER_INIT_FUNCTION()

VLIB_WORKER_INIT_FUNCTION

(

vlib_buffer_worker_init

)

Variable Documentation

show_buffers_command

vlib_cli_command_t show_buffers_command

static

Initial value:

= {
  .path = "show buffers",
  .short_help = "Show packet buffer allocation",
  .function = show_buffers,
}

(constructor) VLIB_CLI_COMMAND (show_buffers_command)

Definition at line 636 of file buffer.c.