svm_fifo_segment.h File Reference

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Data Structures
struct	svm_fifo_segment_header_t
struct	svm_fifo_segment_private_t
struct	svm_fifo_segment_main_t
struct	svm_fifo_segment_create_args_t

Macros
#define	FIFO_SEGMENT_MIN_FIFO_SIZE   4096
#define	FIFO_SEGMENT_MAX_FIFO_SIZE   (8<<20) /* 8mb max fifo size */
#define	FIFO_SEGMENT_ALLOC_CHUNK_SIZE   32 /* Allocation quantum */
#define	FIFO_SEGMENT_F_IS_PRIVATE   1 << 0 /* Private segment */
#define	FIFO_SEGMENT_F_IS_MAIN_HEAP   1 << 1 /* Segment is main heap */
#define	FIFO_SEGMENT_F_IS_PREALLOCATED   1 << 2 /* Segment is preallocated */
#define	foreach_ssvm_fifo_segment_api_error   _(OUT_OF_SPACE, "Out of space in segment", -200)

Enumerations
enum	svm_fifo_segment_freelist_t { FIFO_SEGMENT_FREELIST_NONE = -1, FIFO_SEGMENT_RX_FREELIST = 0, FIFO_SEGMENT_TX_FREELIST, FIFO_SEGMENT_N_FREELISTS }
enum	ssvm_fifo_segment_api_error_enum_t { foreach_ssvm_fifo_segment_api_error }

Functions
static svm_fifo_segment_private_t *	svm_fifo_segment_get_segment (u32 segment_index)
static u8	svm_fifo_segment_has_fifos (svm_fifo_segment_private_t *fifo_segment)
static svm_fifo_t *	svm_fifo_segment_get_fifo_list (svm_fifo_segment_private_t *fifo_segment)
int	svm_fifo_segment_create (svm_fifo_segment_create_args_t *a)
	(master) create an svm fifo segment 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)
	(slave) attach 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 index)
void	svm_fifo_segment_free_fifo (svm_fifo_segment_private_t *s, svm_fifo_t *f, svm_fifo_segment_freelist_t index)
void	svm_fifo_segment_init (u64 baseva, u32 timeout_in_seconds)
u32	svm_fifo_segment_index (svm_fifo_segment_private_t *s)
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)
svm_fifo_segment_private_t *	svm_fifo_segment_segments_pool (void)
	Retrieve svm segments pool. More...

Variables
svm_fifo_segment_main_t	svm_fifo_segment_main
format_function_t	format_svm_fifo_segment

Macro Definition Documentation

#define FIFO_SEGMENT_ALLOC_CHUNK_SIZE   32 /* Allocation quantum */

Definition at line 32 of file svm_fifo_segment.h.

#define FIFO_SEGMENT_F_IS_MAIN_HEAP   1 << 1 /* Segment is main heap */

Definition at line 35 of file svm_fifo_segment.h.

#define FIFO_SEGMENT_F_IS_PREALLOCATED   1 << 2 /* Segment is preallocated */

Definition at line 36 of file svm_fifo_segment.h.

#define FIFO_SEGMENT_F_IS_PRIVATE   1 << 0 /* Private segment */

Definition at line 34 of file svm_fifo_segment.h.

#define FIFO_SEGMENT_MAX_FIFO_SIZE   (8<<20) /* 8mb max fifo size */

Definition at line 31 of file svm_fifo_segment.h.

#define FIFO_SEGMENT_MIN_FIFO_SIZE   4096

Definition at line 30 of file svm_fifo_segment.h.

#define foreach_ssvm_fifo_segment_api_error   _(OUT_OF_SPACE, "Out of space in segment", -200)

Definition at line 97 of file svm_fifo_segment.h.

Enumeration Type Documentation

enum ssvm_fifo_segment_api_error_enum_t

Enumerator
foreach_ssvm_fifo_segment_api_error

Definition at line 100 of file svm_fifo_segment.h.

enum svm_fifo_segment_freelist_t

Enumerator
FIFO_SEGMENT_FREELIST_NONE
FIFO_SEGMENT_RX_FREELIST
FIFO_SEGMENT_TX_FREELIST
FIFO_SEGMENT_N_FREELISTS

Definition at line 22 of file svm_fifo_segment.h.

Function Documentation

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

Definition at line 355 of file svm_fifo_segment.c.

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int svm_fifo_segment_attach

(

svm_fifo_segment_create_args_t *

a

)

(slave) attach to an svm fifo segment

Definition at line 300 of file svm_fifo_segment.c.

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int svm_fifo_segment_create

(

svm_fifo_segment_create_args_t *

a

)

(master) create an svm fifo segment

Definition at line 169 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 219 of file svm_fifo_segment.c.

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void svm_fifo_segment_delete

(

svm_fifo_segment_private_t *

s

)

Definition at line 335 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	index
	)

Definition at line 450 of file svm_fifo_segment.c.

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static svm_fifo_t* svm_fifo_segment_get_fifo_list ( svm_fifo_segment_private_t *  fifo_segment )

inlinestatic

Definition at line 92 of file svm_fifo_segment.h.

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static svm_fifo_segment_private_t* svm_fifo_segment_get_segment ( u32  segment_index )

inlinestatic

Definition at line 79 of file svm_fifo_segment.h.

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static u8 svm_fifo_segment_has_fifos ( svm_fifo_segment_private_t *  fifo_segment )

inlinestatic

Definition at line 86 of file svm_fifo_segment.h.

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u32 svm_fifo_segment_index

(

svm_fifo_segment_private_t *

s

)

Definition at line 519 of file svm_fifo_segment.c.

void svm_fifo_segment_init	(	u64	baseva,
		u32	timeout_in_seconds
	)

Definition at line 510 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 538 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 544 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 528 of file svm_fifo_segment.c.

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Variable Documentation

format_function_t format_svm_fifo_segment

Definition at line 126 of file svm_fifo_segment.h.

svm_fifo_segment_main_t svm_fifo_segment_main

Definition at line 18 of file svm_fifo_segment.c.