Include dependency graph for segment_manager.h:

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Data Structures
struct	segment_manager_main_init_args_

Macros
#define	SEGMENT_MANAGER_INVALID_APP_INDEX ((u32) ~0)

Typedefs
typedef struct _segment_manager_props	segment_manager_props_t

typedef enum seg_manager_flag_	seg_manager_flag_t

typedef struct _segment_manager	segment_manager_t

typedef struct segment_manager_main_init_args_	segment_manager_main_init_args_t

Enumerations
enum	seg_manager_flag_ { SEG_MANAGER_F_DETACHED = 1 << 0, SEG_MANAGER_F_DETACHED_LISTENER = 1 << 1 }

Functions
segment_manager_t *	segment_manager_alloc (void)

int	segment_manager_init (segment_manager_t *sm)
	Initializes segment manager based on options provided. More...

void	segment_manager_free (segment_manager_t *sm)
	Cleanup segment manager. More...

void	segment_manager_init_free (segment_manager_t *sm)
	Initiate segment manager cleanup. More...

segment_manager_t *	segment_manager_get (u32 index)

segment_manager_t *	segment_manager_get_if_valid (u32 index)

u32	segment_manager_index (segment_manager_t *sm)

int	segment_manager_add_segment (segment_manager_t *sm, uword segment_size)
	Adds segment to segment manager's pool. More...

void	segment_manager_del_segment (segment_manager_t sm, fifo_segment_t fs)
	Remove segment without lock. More...

fifo_segment_t *	segment_manager_get_segment (segment_manager_t *sm, u32 segment_index)
	Reads a segment from the segment manager's pool without lock. More...

fifo_segment_t *	segment_manager_get_segment_w_handle (u64 sh)

fifo_segment_t *	segment_manager_get_segment_w_lock (segment_manager_t *sm, u32 segment_index)
	Reads a segment from the segment manager's pool and acquires reader lock. More...

int	segment_manager_add_first_segment (segment_manager_t *sm, u32 segment_size)

u64	segment_manager_make_segment_handle (u32 segment_manager_index, u32 segment_index)

u64	segment_manager_segment_handle (segment_manager_t sm, fifo_segment_t segment)

void	segment_manager_segment_reader_unlock (segment_manager_t *sm)

void	segment_manager_segment_writer_unlock (segment_manager_t *sm)

int	segment_manager_alloc_session_fifos (segment_manager_t sm, u32 thread_index, svm_fifo_t rx_fifo, svm_fifo_t *tx_fifo)

int	segment_manager_try_alloc_fifos (fifo_segment_t fs, u32 thread_index, u32 rx_fifo_size, u32 tx_fifo_size, svm_fifo_t rx_fifo, svm_fifo_t *tx_fifo)

void	segment_manager_dealloc_fifos (svm_fifo_t rx_fifo, svm_fifo_t tx_fifo)

void	segment_manager_detach_fifo (segment_manager_t sm, svm_fifo_t f)

void	segment_manager_attach_fifo (segment_manager_t sm, svm_fifo_t f, session_t *s)

void	segment_manager_set_watermarks (segment_manager_t *sm, u8 high_watermark, u8 low_watermark)

u8	segment_manager_has_fifos (segment_manager_t *sm)

svm_msg_q_t *	segment_manager_alloc_queue (fifo_segment_t fs, segment_manager_props_t props)
	Allocates shm queue in the first segment. More...

void	segment_manager_dealloc_queue (segment_manager_t sm, svm_queue_t q)
	Frees shm queue allocated in the first segment. More...

svm_msg_q_t *	segment_manager_event_queue (segment_manager_t *sm)

u32	segment_manager_evt_q_expected_size (u32 q_size)

u8	segment_manager_app_detached (segment_manager_t *sm)

void	segment_manager_app_detach (segment_manager_t *sm)

void	segment_manager_del_sessions (segment_manager_t *sm)
	Cleanup segment manager sessions. More...

void	segment_manager_format_sessions (segment_manager_t *sm, int verbose)

void	segment_manager_main_init (segment_manager_main_init_args_t *a)

segment_manager_props_t *	segment_manager_props_init (segment_manager_props_t *sm)

static void	segment_manager_parse_segment_handle (u64 segment_handle, u32 sm_index, u32 segment_index)

Macro Definition Documentation

◆ SEGMENT_MANAGER_INVALID_APP_INDEX

#define SEGMENT_MANAGER_INVALID_APP_INDEX ((u32) ~0)

Definition at line 87 of file segment_manager.h.

Typedef Documentation

◆ seg_manager_flag_t

typedef enum seg_manager_flag_ seg_manager_flag_t

◆ segment_manager_main_init_args_t

typedef struct segment_manager_main_init_args_ segment_manager_main_init_args_t

◆ segment_manager_props_t

typedef struct _segment_manager_props segment_manager_props_t

◆ segment_manager_t

typedef struct _segment_manager segment_manager_t

Enumeration Type Documentation

◆ seg_manager_flag_

enum seg_manager_flag_

Enumerator
SEG_MANAGER_F_DETACHED
SEG_MANAGER_F_DETACHED_LISTENER

Definition at line 45 of file segment_manager.h.

Function Documentation

◆ segment_manager_add_first_segment()

int segment_manager_add_first_segment	(	segment_manager_t *	sm,
		u32	segment_size
	)

◆ segment_manager_add_segment()

int segment_manager_add_segment	(	segment_manager_t *	sm,
		uword	segment_size
	)

Adds segment to segment manager's pool.

If needed a writer's lock is acquired before allocating a new segment to avoid affecting any of the segments pool readers.

Definition at line 92 of file segment_manager.c.

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◆ segment_manager_alloc()

segment_manager_t* segment_manager_alloc ( void )

Definition at line 319 of file segment_manager.c.

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◆ segment_manager_alloc_queue()

svm_msg_q_t* segment_manager_alloc_queue	(	fifo_segment_t *	segment,
		segment_manager_props_t *	props
	)

Allocates shm queue in the first segment.

Must be called with lock held

Definition at line 820 of file segment_manager.c.

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◆ segment_manager_alloc_session_fifos()

int segment_manager_alloc_session_fifos	(	segment_manager_t *	sm,
		u32	thread_index,
		svm_fifo_t **	rx_fifo,
		svm_fifo_t **	tx_fifo
	)

Definition at line 625 of file segment_manager.c.

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◆ segment_manager_app_detach()

void segment_manager_app_detach ( segment_manager_t * sm )

Definition at line 74 of file segment_manager.c.

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◆ segment_manager_app_detached()

u8 segment_manager_app_detached ( segment_manager_t * sm )

Definition at line 68 of file segment_manager.c.

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◆ segment_manager_attach_fifo()

void segment_manager_attach_fifo	(	segment_manager_t *	sm,
		svm_fifo_t *	f,
		session_t *	s
	)

Definition at line 784 of file segment_manager.c.

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◆ segment_manager_dealloc_fifos()

void segment_manager_dealloc_fifos	(	svm_fifo_t *	rx_fifo,
		svm_fifo_t *	tx_fifo
	)

Definition at line 729 of file segment_manager.c.

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◆ segment_manager_dealloc_queue()

void segment_manager_dealloc_queue	(	segment_manager_t *	sm,
		svm_queue_t *	q
	)

Frees shm queue allocated in the first segment.

Definition at line 864 of file segment_manager.c.

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◆ segment_manager_del_segment()

void segment_manager_del_segment	(	segment_manager_t *	sm,
		fifo_segment_t *	fs
	)

Remove segment without lock.

Definition at line 189 of file segment_manager.c.

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◆ segment_manager_del_sessions()

void segment_manager_del_sessions ( segment_manager_t * sm )

Cleanup segment manager sessions.

Initiates disconnects for all sessions 'owned' by a segment manager by leveraging the backpointers that fifos keep.

Parameters

sm	segment manager whose sessions are to be disconnected

Cleanup segment manager sessions.

Definition at line 538 of file segment_manager.c.

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◆ segment_manager_detach_fifo()

void segment_manager_detach_fifo	(	segment_manager_t *	sm,
		svm_fifo_t *	f
	)

Definition at line 774 of file segment_manager.c.

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◆ segment_manager_event_queue()

svm_msg_q_t* segment_manager_event_queue ( segment_manager_t * sm )

Definition at line 855 of file segment_manager.c.

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◆ segment_manager_evt_q_expected_size()

u32 segment_manager_evt_q_expected_size ( u32 q_size )

Definition at line 798 of file segment_manager.c.

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◆ segment_manager_format_sessions()

void segment_manager_format_sessions	(	segment_manager_t *	sm,
		int	verbose
	)

Definition at line 977 of file segment_manager.c.

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◆ segment_manager_free()

void segment_manager_free ( segment_manager_t * sm )

Cleanup segment manager.

Parameters

sm	segment manager to be freed

Definition at line 444 of file segment_manager.c.

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◆ segment_manager_get()

segment_manager_t* segment_manager_get ( u32 index )

Definition at line 489 of file segment_manager.c.

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◆ segment_manager_get_if_valid()

segment_manager_t* segment_manager_get_if_valid ( u32 index )

Definition at line 495 of file segment_manager.c.

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◆ segment_manager_get_segment()

fifo_segment_t* segment_manager_get_segment	(	segment_manager_t *	sm,
		u32	segment_index
	)

Reads a segment from the segment manager's pool without lock.

Definition at line 252 of file segment_manager.c.

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◆ segment_manager_get_segment_w_handle()

fifo_segment_t* segment_manager_get_segment_w_handle ( u64 sh )

Definition at line 273 of file segment_manager.c.

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◆ segment_manager_get_segment_w_lock()

fifo_segment_t* segment_manager_get_segment_w_lock	(	segment_manager_t *	sm,
		u32	segment_index
	)

Reads a segment from the segment manager's pool and acquires reader lock.

Caller must drop the reader's lock by calling segment_manager_segment_reader_unlock once it finishes working with the segment.

Definition at line 294 of file segment_manager.c.

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◆ segment_manager_has_fifos()

u8 segment_manager_has_fifos ( segment_manager_t * sm )

Definition at line 509 of file segment_manager.c.

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◆ segment_manager_index()

u32 segment_manager_index ( segment_manager_t * sm )

Definition at line 503 of file segment_manager.c.

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◆ segment_manager_init()

int segment_manager_init ( segment_manager_t * sm )

Initializes segment manager based on options provided.

Returns error if ssvm segment(s) allocation fails.

Definition at line 334 of file segment_manager.c.

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◆ segment_manager_init_free()

void segment_manager_init_free ( segment_manager_t * sm )

Initiate segment manager cleanup.

Parameters

sm	segment manager to be freed

Definition at line 476 of file segment_manager.c.

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◆ segment_manager_main_init()

void segment_manager_main_init ( segment_manager_main_init_args_t * a )

Definition at line 885 of file segment_manager.c.

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◆ segment_manager_make_segment_handle()

u64 segment_manager_make_segment_handle	(	u32	segment_manager_index,
		u32	segment_index
	)

Definition at line 266 of file segment_manager.c.

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◆ segment_manager_parse_segment_handle()

static void segment_manager_parse_segment_handle	(	u64	segment_handle,
		u32 *	sm_index,
		u32 *	segment_index
	)

inlinestatic

Definition at line 172 of file segment_manager.h.

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◆ segment_manager_props_init()

segment_manager_props_t* segment_manager_props_init ( segment_manager_props_t * sm )

Definition at line 54 of file segment_manager.c.

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◆ segment_manager_segment_handle()

u64 segment_manager_segment_handle	(	segment_manager_t *	sm,
		fifo_segment_t *	segment
	)

Definition at line 258 of file segment_manager.c.

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◆ segment_manager_segment_reader_unlock()

void segment_manager_segment_reader_unlock ( segment_manager_t * sm )

Definition at line 307 of file segment_manager.c.

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◆ segment_manager_segment_writer_unlock()

void segment_manager_segment_writer_unlock ( segment_manager_t * sm )

Definition at line 313 of file segment_manager.c.

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◆ segment_manager_set_watermarks()

void segment_manager_set_watermarks	(	segment_manager_t *	sm,
		u8	high_watermark,
		u8	low_watermark
	)

Definition at line 1039 of file segment_manager.c.

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◆ segment_manager_try_alloc_fifos()

int segment_manager_try_alloc_fifos	(	fifo_segment_t *	fs,
		u32	thread_index,
		u32	rx_fifo_size,
		u32	tx_fifo_size,
		svm_fifo_t **	rx_fifo,
		svm_fifo_t **	tx_fifo
	)

Definition at line 586 of file segment_manager.c.

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Data Structures

Macros

Typedefs

Enumerations

Functions

Macro Definition Documentation

◆ SEGMENT_MANAGER_INVALID_APP_INDEX

Typedef Documentation

◆ seg_manager_flag_t

◆ segment_manager_main_init_args_t

◆ segment_manager_props_t

◆ segment_manager_t

Enumeration Type Documentation

◆ seg_manager_flag_

Function Documentation

◆ segment_manager_add_first_segment()

◆ segment_manager_add_segment()

◆ segment_manager_alloc()

◆ segment_manager_alloc_queue()

◆ segment_manager_alloc_session_fifos()

◆ segment_manager_app_detach()

◆ segment_manager_app_detached()

◆ segment_manager_attach_fifo()

◆ segment_manager_dealloc_fifos()

◆ segment_manager_dealloc_queue()

◆ segment_manager_del_segment()

◆ segment_manager_del_sessions()

◆ segment_manager_detach_fifo()

◆ segment_manager_event_queue()

◆ segment_manager_evt_q_expected_size()

◆ segment_manager_format_sessions()

◆ segment_manager_free()

◆ segment_manager_get()

◆ segment_manager_get_if_valid()

◆ segment_manager_get_segment()

◆ segment_manager_get_segment_w_handle()

◆ segment_manager_get_segment_w_lock()

◆ segment_manager_has_fifos()

◆ segment_manager_index()

◆ segment_manager_init()

◆ segment_manager_init_free()

◆ segment_manager_main_init()

◆ segment_manager_make_segment_handle()

◆ segment_manager_parse_segment_handle()

◆ segment_manager_props_init()

◆ segment_manager_segment_handle()

◆ segment_manager_segment_reader_unlock()

◆ segment_manager_segment_writer_unlock()

◆ segment_manager_set_watermarks()

◆ segment_manager_try_alloc_fifos()