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Macros
#define	SVM_ENQUEUE_CLONE_TEMPLATE(arch, fn, tgt)

#define	SVM_FIFO_DEQUEUE_CLONE_TEMPLATE(arch, fn, tgt)

#define	SVM_FIFO_PEEK_CLONE_TEMPLATE(arch, fn, tgt)

Functions
static u8	position_lt (svm_fifo_t *f, u32 a, u32 b)

static u8	position_leq (svm_fifo_t *f, u32 a, u32 b)

static u8	position_gt (svm_fifo_t *f, u32 a, u32 b)

static u32	position_diff (svm_fifo_t *f, u32 posa, u32 posb)

static u32	ooo_segment_end_pos (svm_fifo_t f, ooo_segment_t s)

u8 *	format_ooo_segment (u8 s, va_list args)

u8 *	svm_fifo_dump_trace (u8 s, svm_fifo_t f)

u8 *	svm_fifo_replay (u8 s, svm_fifo_t f, u8 no_read, u8 verbose)

u8 *	format_ooo_list (u8 s, va_list args)

u8 *	format_svm_fifo (u8 s, va_list args)

svm_fifo_t *	svm_fifo_create (u32 data_size_in_bytes)
	create an svm fifo, in the current heap. More...

void	svm_fifo_free (svm_fifo_t *f)

static ooo_segment_t *	ooo_segment_new (svm_fifo_t *f, u32 start, u32 length)

static void	ooo_segment_del (svm_fifo_t *f, u32 index)

static void	ooo_segment_add (svm_fifo_t *f, u32 offset, u32 length)
	Add segment to fifo's out-of-order segment list. More...

static int	ooo_segment_try_collect (svm_fifo_t *f, u32 n_bytes_enqueued)
	Removes segments that can now be enqueued because the fifo's tail has advanced. More...

static int	svm_fifo_enqueue_internal (svm_fifo_t f, u32 max_bytes, u8 copy_from_here)

static int	svm_fifo_enqueue_nowait_ma (svm_fifo_t f, u32 max_bytes, u8 copy_from_here)

	foreach_march_variant (SVM_ENQUEUE_CLONE_TEMPLATE, svm_fifo_enqueue_nowait_ma)

	CLIB_MULTIARCH_SELECT_FN (svm_fifo_enqueue_nowait_ma)

int	svm_fifo_enqueue_nowait (svm_fifo_t f, u32 max_bytes, u8 copy_from_here)

static int	svm_fifo_enqueue_with_offset_internal (svm_fifo_t f, u32 offset, u32 required_bytes, u8 copy_from_here)
	Enqueue a future segment. More...

int	svm_fifo_enqueue_with_offset (svm_fifo_t f, u32 offset, u32 required_bytes, u8 copy_from_here)

static int	svm_fifo_dequeue_internal (svm_fifo_t f, u32 max_bytes, u8 copy_here)

static int	svm_fifo_dequeue_nowait_ma (svm_fifo_t f, u32 max_bytes, u8 copy_here)

	foreach_march_variant (SVM_FIFO_DEQUEUE_CLONE_TEMPLATE, svm_fifo_dequeue_nowait_ma)

	CLIB_MULTIARCH_SELECT_FN (svm_fifo_dequeue_nowait_ma)

int	svm_fifo_dequeue_nowait (svm_fifo_t f, u32 max_bytes, u8 copy_here)

static int	svm_fifo_peek_ma (svm_fifo_t f, u32 relative_offset, u32 max_bytes, u8 copy_here)

	foreach_march_variant (SVM_FIFO_PEEK_CLONE_TEMPLATE, svm_fifo_peek_ma)

	CLIB_MULTIARCH_SELECT_FN (svm_fifo_peek_ma)

int	svm_fifo_peek (svm_fifo_t f, u32 relative_offset, u32 max_bytes, u8 copy_here)

int	svm_fifo_dequeue_drop (svm_fifo_t *f, u32 max_bytes)

u32	svm_fifo_number_ooo_segments (svm_fifo_t *f)

ooo_segment_t *	svm_fifo_first_ooo_segment (svm_fifo_t *f)

void	svm_fifo_init_pointers (svm_fifo_t *f, u32 pointer)
	Set fifo pointers to requested offset. More...

Macro Definition Documentation

#define SVM_ENQUEUE_CLONE_TEMPLATE	(	arch,
		fn,
		tgt
	)

Value:

uword                                                                 \
  __attribute__ ((flatten))                                             \
  __attribute__ ((target (tgt)))                                        \
  CLIB_CPU_OPTIMIZED                                                    \
  fn ## _ ## arch ( svm_fifo_t * f, u32 max_bytes, u8 * copy_from_here) \
  { return fn (f, max_bytes, copy_from_here);}

Definition at line 513 of file svm_fifo.c.

#define SVM_FIFO_DEQUEUE_CLONE_TEMPLATE	(	arch,
		fn,
		tgt
	)

Value:

uword                                                         \
  __attribute__ ((flatten))                                     \
  __attribute__ ((target (tgt)))                                \
  CLIB_CPU_OPTIMIZED                                            \
  fn ## _ ## arch ( svm_fifo_t * f, u32 max_bytes,              \
                    u8 * copy_here)                             \
  { return fn (f, max_bytes, copy_here);}

Definition at line 676 of file svm_fifo.c.

#define SVM_FIFO_PEEK_CLONE_TEMPLATE	(	arch,
		fn,
		tgt
	)

Value:

uword                                                                 \
  __attribute__ ((flatten))                                             \
  __attribute__ ((target (tgt)))                                        \
  CLIB_CPU_OPTIMIZED                                                    \
  fn ## _ ## arch ( svm_fifo_t * f, u32 relative_offset, u32 max_bytes, \
                    u8 * copy_here)                                     \
  { return fn (f, relative_offset, max_bytes, copy_here);}

Definition at line 743 of file svm_fifo.c.

Function Documentation

CLIB_MULTIARCH_SELECT_FN ( svm_fifo_enqueue_nowait_ma )

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CLIB_MULTIARCH_SELECT_FN ( svm_fifo_dequeue_nowait_ma )

CLIB_MULTIARCH_SELECT_FN ( svm_fifo_peek_ma )

foreach_march_variant	(	SVM_ENQUEUE_CLONE_TEMPLATE	,
		svm_fifo_enqueue_nowait_ma
	)

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foreach_march_variant	(	SVM_FIFO_DEQUEUE_CLONE_TEMPLATE	,
		svm_fifo_dequeue_nowait_ma
	)

foreach_march_variant	(	SVM_FIFO_PEEK_CLONE_TEMPLATE	,
		svm_fifo_peek_ma
	)

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

Definition at line 150 of file svm_fifo.c.

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

Definition at line 54 of file svm_fifo.c.

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

Definition at line 167 of file svm_fifo.c.

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static void ooo_segment_add	(	svm_fifo_t *	f,
		u32	offset,
		u32	length
	)

static

Add segment to fifo's out-of-order segment list.

Takes care of merging adjacent segments and removing overlapping ones.

Definition at line 270 of file svm_fifo.c.

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static void ooo_segment_del	(	svm_fifo_t *	f,
		u32	index
	)

inlinestatic

Definition at line 241 of file svm_fifo.c.

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static u32 ooo_segment_end_pos	(	svm_fifo_t *	f,
		ooo_segment_t *	s
	)

inlinestatic

Definition at line 48 of file svm_fifo.c.

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static ooo_segment_t* ooo_segment_new	(	svm_fifo_t *	f,
		u32	start,
		u32	length
	)

inlinestatic

Definition at line 226 of file svm_fifo.c.

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static int ooo_segment_try_collect	(	svm_fifo_t *	f,
		u32	n_bytes_enqueued
	)

static

Removes segments that can now be enqueued because the fifo's tail has advanced.

Returns the number of bytes added to tail.

Definition at line 402 of file svm_fifo.c.

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static u32 position_diff	(	svm_fifo_t *	f,
		u32	posa,
		u32	posb
	)

inlinestatic

Definition at line 41 of file svm_fifo.c.

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static u8 position_gt	(	svm_fifo_t *	f,
		u32	a,
		u32	b
	)

inlinestatic

Definition at line 34 of file svm_fifo.c.

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static u8 position_leq	(	svm_fifo_t *	f,
		u32	a,
		u32	b
	)

inlinestatic

Definition at line 27 of file svm_fifo.c.

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static u8 position_lt	(	svm_fifo_t *	f,
		u32	a,
		u32	b
	)

inlinestatic

Definition at line 20 of file svm_fifo.c.

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svm_fifo_t* svm_fifo_create ( u32 data_size_in_bytes )

create an svm fifo, in the current heap.

Fails vs blow up the process

Definition at line 194 of file svm_fifo.c.

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int svm_fifo_dequeue_drop	(	svm_fifo_t *	f,
		u32	max_bytes
	)

Definition at line 772 of file svm_fifo.c.

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static int svm_fifo_dequeue_internal	(	svm_fifo_t *	f,
		u32	max_bytes,
		u8 *	copy_here
	)

static

Definition at line 618 of file svm_fifo.c.

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int svm_fifo_dequeue_nowait	(	svm_fifo_t *	f,
		u32	max_bytes,
		u8 *	copy_here
	)

Definition at line 690 of file svm_fifo.c.

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static int svm_fifo_dequeue_nowait_ma	(	svm_fifo_t *	f,
		u32	max_bytes,
		u8 *	copy_here
	)

static

Definition at line 671 of file svm_fifo.c.

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u8* svm_fifo_dump_trace	(	u8 *	s,
		svm_fifo_t *	f
	)

Definition at line 66 of file svm_fifo.c.

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static int svm_fifo_enqueue_internal	(	svm_fifo_t *	f,
		u32	max_bytes,
		u8 *	copy_from_here
	)

static

Definition at line 451 of file svm_fifo.c.

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int svm_fifo_enqueue_nowait	(	svm_fifo_t *	f,
		u32	max_bytes,
		u8 *	copy_from_here
	)

Definition at line 533 of file svm_fifo.c.

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static int svm_fifo_enqueue_nowait_ma	(	svm_fifo_t *	f,
		u32	max_bytes,
		u8 *	copy_from_here
	)

static

Definition at line 522 of file svm_fifo.c.

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int svm_fifo_enqueue_with_offset	(	svm_fifo_t *	f,
		u32	offset,
		u32	required_bytes,
		u8 *	copy_from_here
	)

Definition at line 608 of file svm_fifo.c.

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static int svm_fifo_enqueue_with_offset_internal	(	svm_fifo_t *	f,
		u32	offset,
		u32	required_bytes,
		u8 *	copy_from_here
	)

static

Enqueue a future segment.

Two choices: either copies the entire segment, or copies nothing Returns 0 of the entire segment was copied Returns -1 if none of the segment was copied due to lack of space

Definition at line 555 of file svm_fifo.c.

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ooo_segment_t* svm_fifo_first_ooo_segment ( svm_fifo_t * f )

Definition at line 818 of file svm_fifo.c.

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void svm_fifo_free ( svm_fifo_t * f )

Definition at line 214 of file svm_fifo.c.

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void svm_fifo_init_pointers	(	svm_fifo_t *	f,
		u32	pointer
	)

Set fifo pointers to requested offset.

Definition at line 827 of file svm_fifo.c.

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u32 svm_fifo_number_ooo_segments ( svm_fifo_t * f )

Definition at line 812 of file svm_fifo.c.

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int svm_fifo_peek	(	svm_fifo_t *	f,
		u32	relative_offset,
		u32	max_bytes,
		u8 *	copy_here
	)

Definition at line 756 of file svm_fifo.c.

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static int svm_fifo_peek_ma	(	svm_fifo_t *	f,
		u32	relative_offset,
		u32	max_bytes,
		u8 *	copy_here
	)

static

Definition at line 705 of file svm_fifo.c.

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u8* svm_fifo_replay	(	u8 *	s,
		svm_fifo_t *	f,
		u8	no_read,
		u8	verbose
	)

Definition at line 90 of file svm_fifo.c.

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Macros

Functions

Macro Definition Documentation

Function Documentation