svm_fifo_segment.c File Reference

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Functions
static void	allocate_new_fifo_chunk (svm_fifo_segment_header_t *fsh, u32 data_size_in_bytes, int chunk_size)
void	svm_fifo_segment_preallocate_fifo_pairs (svm_fifo_segment_private_t *s, u32 rx_fifo_size, u32 tx_fifo_size, u32 *n_fifo_pairs)
	Pre-allocates fifo pairs in fifo segment. More...
int	svm_fifo_segment_init (svm_fifo_segment_private_t *s)
	Initialize svm fifo segment shared header. More...
int	svm_fifo_segment_create (svm_fifo_segment_create_args_t *a)
	Create an svm fifo segment and initialize as master. More...
int	svm_fifo_segment_create_process_private (svm_fifo_segment_create_args_t *a)
	Create an svm fifo segment in process-private memory. More...
int	svm_fifo_segment_attach (svm_fifo_segment_create_args_t *a)
	Attach as slave to an svm fifo segment. More...
void	svm_fifo_segment_delete (svm_fifo_segment_private_t *s)
svm_fifo_t *	svm_fifo_segment_alloc_fifo (svm_fifo_segment_private_t *s, u32 data_size_in_bytes, svm_fifo_segment_freelist_t list_index)
	Allocate fifo in svm segment. More...
void	svm_fifo_segment_free_fifo (svm_fifo_segment_private_t *s, svm_fifo_t *f, svm_fifo_segment_freelist_t list_index)
void	svm_fifo_segment_main_init (u64 baseva, u32 timeout_in_seconds)
u32	svm_fifo_segment_index (svm_fifo_segment_private_t *s)
svm_fifo_segment_private_t *	svm_fifo_segment_segments_pool (void)
	Retrieve svm segments pool. More...
u32	svm_fifo_segment_num_fifos (svm_fifo_segment_private_t *fifo_segment)
	Get number of active fifos. More...
u32	svm_fifo_segment_num_free_fifos (svm_fifo_segment_private_t *fifo_segment, u32 fifo_size_in_bytes)
void	svm_fifo_segment_info (svm_fifo_segment_private_t *seg, uword *address, u64 *size)
void *	svm_fifo_segment_heap (svm_fifo_segment_private_t *seg)
u8 *	format_svm_fifo_segment_type (u8 *s, va_list *args)
u8 *	format_svm_fifo_segment (u8 *s, va_list *args)
	Segment format function. More...

Variables
svm_fifo_segment_main_t	svm_fifo_segment_main

Function Documentation

static void allocate_new_fifo_chunk ( svm_fifo_segment_header_t *  fsh, u32  data_size_in_bytes, int  chunk_size  )

static

Definition at line 21 of file svm_fifo_segment.c.

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

Segment format function.

Definition at line 634 of file svm_fifo_segment.c.

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

Definition at line 613 of file svm_fifo_segment.c.

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svm_fifo_t* svm_fifo_segment_alloc_fifo	(	svm_fifo_segment_private_t *	s,
		u32	data_size_in_bytes,
		svm_fifo_segment_freelist_t	list_index
	)

Allocate fifo in svm segment.

Definition at line 340 of file svm_fifo_segment.c.

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int svm_fifo_segment_attach

(

svm_fifo_segment_create_args_t *

a

)

Attach as slave to an svm fifo segment.

Definition at line 294 of file svm_fifo_segment.c.

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int svm_fifo_segment_create

(

svm_fifo_segment_create_args_t *

a

)

Create an svm fifo segment and initialize as master.

Definition at line 206 of file svm_fifo_segment.c.

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int svm_fifo_segment_create_process_private

(

svm_fifo_segment_create_args_t *

a

)

Create an svm fifo segment in process-private memory.

Definition at line 240 of file svm_fifo_segment.c.

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void svm_fifo_segment_delete

(

svm_fifo_segment_private_t *

s

)

Definition at line 327 of file svm_fifo_segment.c.

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void svm_fifo_segment_free_fifo	(	svm_fifo_segment_private_t *	s,
		svm_fifo_t *	f,
		svm_fifo_segment_freelist_t	list_index
	)

Definition at line 438 of file svm_fifo_segment.c.

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void* svm_fifo_segment_heap

(

svm_fifo_segment_private_t *

seg

)

Definition at line 607 of file svm_fifo_segment.c.

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u32 svm_fifo_segment_index

(

svm_fifo_segment_private_t *

s

)

Definition at line 507 of file svm_fifo_segment.c.

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void svm_fifo_segment_info	(	svm_fifo_segment_private_t *	seg,
		uword *	address,
		u64 *	size
	)

Definition at line 582 of file svm_fifo_segment.c.

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int svm_fifo_segment_init

(

svm_fifo_segment_private_t *

s

)

Initialize svm fifo segment shared header.

Definition at line 183 of file svm_fifo_segment.c.

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void svm_fifo_segment_main_init	(	u64	baseva,
		u32	timeout_in_seconds
	)

Definition at line 498 of file svm_fifo_segment.c.

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u32 svm_fifo_segment_num_fifos

(

svm_fifo_segment_private_t *

fifo_segment

)

Get number of active fifos.

Definition at line 526 of file svm_fifo_segment.c.

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u32 svm_fifo_segment_num_free_fifos	(	svm_fifo_segment_private_t *	fifo_segment,
		u32	fifo_size_in_bytes
	)

Definition at line 532 of file svm_fifo_segment.c.

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void svm_fifo_segment_preallocate_fifo_pairs	(	svm_fifo_segment_private_t *	s,
		u32	rx_fifo_size,
		u32	tx_fifo_size,
		u32 *	n_fifo_pairs
	)

Pre-allocates fifo pairs in fifo segment.

The number of fifos pre-allocated is the minimum of the requested number of pairs and the maximum number that fit within the segment. If the maximum is hit, the number of fifo pairs requested is updated by subtracting the number of fifos that have been successfully allocated.

Definition at line 68 of file svm_fifo_segment.c.

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svm_fifo_segment_private_t* svm_fifo_segment_segments_pool

(

void

)

Retrieve svm segments pool.

Used only for debug purposes.

Definition at line 516 of file svm_fifo_segment.c.

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Variable Documentation

svm_fifo_segment_main_t svm_fifo_segment_main

Definition at line 18 of file svm_fifo_segment.c.