buffer.c File Reference

Allocate/free network buffers. More...

Include dependency graph for buffer.c:

Go to the source code of this file.

Functions
uword	vlib_buffer_length_in_chain_slow_path (vlib_main_t *vm, vlib_buffer_t *b_first)
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)
static void	vlib_buffer_validate_alloc_free (vlib_main_t *vm, u32 *buffers, uword n_buffers, vlib_buffer_known_state_t expected_state)
void	vlib_buffer_merge_free_lists (vlib_buffer_free_list_t *dst, vlib_buffer_free_list_t *src)
static u32	vlib_buffer_create_free_list_helper (vlib_main_t *vm, u32 n_data_bytes, u32 is_public, u32 is_default, u8 *name)
u32	vlib_buffer_create_free_list (vlib_main_t *vm, u32 n_data_bytes, char *fmt,...)
u32	vlib_buffer_get_or_create_free_list (vlib_main_t *vm, u32 n_data_bytes, char *fmt,...)
static void	del_free_list (vlib_main_t *vm, vlib_buffer_free_list_t *f)
void	vlib_buffer_delete_free_list_internal (vlib_main_t *vm, u32 free_list_index)
static uword	fill_free_list (vlib_main_t *vm, vlib_buffer_free_list_t *fl, uword min_free_buffers)
static u32	alloc_from_free_list (vlib_main_t *vm, vlib_buffer_free_list_t *free_list, u32 *alloc_buffers, u32 n_alloc_buffers)
static u32	vlib_buffer_alloc_internal (vlib_main_t *vm, u32 *buffers, u32 n_buffers)
static u32	vlib_buffer_alloc_from_free_list_internal (vlib_main_t *vm, u32 *buffers, u32 n_buffers, u32 free_list_index)
void *	vlib_set_buffer_free_callback (vlib_main_t *vm, void *fp)
static_always_inline void	vlib_buffer_free_inline (vlib_main_t *vm, u32 *buffers, u32 n_buffers, u32 follow_buffer_next)
static void	vlib_buffer_free_internal (vlib_main_t *vm, u32 *buffers, u32 n_buffers)
static void	vlib_buffer_free_no_next_internal (vlib_main_t *vm, u32 *buffers, u32 n_buffers)
static void	vlib_packet_template_buffer_init (vlib_main_t *vm, vlib_buffer_free_list_t *fl, u32 *buffers, u32 n_buffers)
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_physmem_alloc, char *fmt,...)
void *	vlib_packet_template_get_packet (vlib_main_t *vm, vlib_packet_template_t *t, u32 *bi_result)
void	vlib_packet_template_get_packet_helper (vlib_main_t *vm, vlib_packet_template_t *t)
u32	vlib_buffer_add_data (vlib_main_t *vm, u32 free_list_index, u32 buffer_index, void *data, u32 n_data_bytes)
u16	vlib_buffer_chain_append_data_with_alloc (vlib_main_t *vm, u32 free_list_index, vlib_buffer_t *first, vlib_buffer_t **last, void *data, u16 data_len)
void	vlib_buffer_add_mem_range (vlib_main_t *vm, uword start, uword size)
static u8 *	format_vlib_buffer_free_list (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_main_init (struct vlib_main_t *vm)
static clib_error_t *	vlib_buffers_configure (vlib_main_t *vm, unformat_input_t *input)

Variables
vlib_buffer_callbacks_t *	vlib_buffer_callbacks = 0
static u32	vlib_buffer_physmem_sz = 32 << 20
vlib_main_t **	vlib_mains = &__bootstrap_vlib_main_vector.vm
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.

Function Documentation

static u32 alloc_from_free_list ( vlib_main_t *  vm, vlib_buffer_free_list_t *  free_list, u32 *  alloc_buffers, u32  n_alloc_buffers  )

static

Definition at line 598 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void del_free_list ( vlib_main_t *  vm, vlib_buffer_free_list_t *  f  )

static

Definition at line 460 of file buffer.c.

Here is the caller graph for this function:

static uword fill_free_list ( vlib_main_t *  vm, vlib_buffer_free_list_t *  fl, uword  min_free_buffers  )

static

Definition at line 512 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 70 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 102 of file buffer.c.

Here is the call graph for this function:

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

Definition at line 142 of file buffer.c.

Here is the call graph for this function:

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

static

Definition at line 995 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 114 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 1020 of file buffer.c.

Here is the call graph for this function:

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

Definition at line 872 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void vlib_buffer_add_mem_range	(	vlib_main_t *	vm,
		uword	start,
		uword	size
	)

Definition at line 964 of file buffer.c.

Here is the caller graph for this function:

static u32 vlib_buffer_alloc_from_free_list_internal ( vlib_main_t *  vm, u32 *  buffers, u32  n_buffers, u32  free_list_index  )

static

Definition at line 644 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 vlib_buffer_alloc_internal ( vlib_main_t *  vm, u32 *  buffers, u32  n_buffers  )

static

Definition at line 632 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u16 vlib_buffer_chain_append_data_with_alloc	(	vlib_main_t *	vm,
		u32	free_list_index,
		vlib_buffer_t *	first,
		vlib_buffer_t **	last,
		void *	data,
		u16	data_len
	)

Definition at line 929 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u32 vlib_buffer_create_free_list	(	vlib_main_t *	vm,
		u32	n_data_bytes,
		char *	fmt,
			...
	)

Definition at line 419 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 vlib_buffer_create_free_list_helper ( vlib_main_t *  vm, u32  n_data_bytes, u32  is_public, u32  is_default, u8 *  name  )

static

Definition at line 351 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void vlib_buffer_delete_free_list_internal	(	vlib_main_t *	vm,
		u32	free_list_index
	)

Definition at line 474 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static_always_inline void vlib_buffer_free_inline	(	vlib_main_t *	vm,
		u32 *	buffers,
		u32	n_buffers,
		u32	follow_buffer_next
	)

Definition at line 665 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void vlib_buffer_free_internal ( vlib_main_t *  vm, u32 *  buffers, u32  n_buffers  )

static

Definition at line 749 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void vlib_buffer_free_no_next_internal ( vlib_main_t *  vm, u32 *  buffers, u32  n_buffers  )

static

Definition at line 756 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u32 vlib_buffer_get_or_create_free_list	(	vlib_main_t *	vm,
		u32	n_data_bytes,
		char *	fmt,
			...
	)

Definition at line 436 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

uword vlib_buffer_length_in_chain_slow_path	(	vlib_main_t *	vm,
		vlib_buffer_t *	b_first
	)

Definition at line 53 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

clib_error_t* vlib_buffer_main_init

(

struct vlib_main_t *

vm

)

Definition at line 1057 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void vlib_buffer_merge_free_lists	(	vlib_buffer_free_list_t *	dst,
		vlib_buffer_free_list_t *	src
	)

Definition at line 334 of file buffer.c.

Here is the caller graph for this function:

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

static

Definition at line 298 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 1108 of file buffer.c.

Here is the call graph for this function:

static void vlib_packet_template_buffer_init ( vlib_main_t *  vm, vlib_buffer_free_list_t *  fl, u32 *  buffers, u32  n_buffers  )

static

Definition at line 765 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 834 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void vlib_packet_template_get_packet_helper	(	vlib_main_t *	vm,
		vlib_packet_template_t *	t
	)

Definition at line 854 of file buffer.c.

Here is the call graph for this function:

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_physmem_alloc,
		char *	fmt,
			...
	)

Definition at line 784 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void* vlib_set_buffer_free_callback	(	vlib_main_t *	vm,
		void *	fp
	)

Definition at line 655 of file buffer.c.

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

Definition at line 214 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 159 of file buffer.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 221 of file buffer.c.

Here is the call graph for this function:

Variable Documentation

vec_header_t h

Definition at line 282 of file buffer.c.

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 1049 of file buffer.c.

vlib_buffer_callbacks_t* vlib_buffer_callbacks = 0

Definition at line 49 of file buffer.c.

u32 vlib_buffer_physmem_sz = 32 << 20

static

Definition at line 50 of file buffer.c.

vlib_main_t** vlib_mains = &__bootstrap_vlib_main_vector.vm

Definition at line 292 of file buffer.c.

vlib_main_t* vm

Definition at line 283 of file buffer.c.