Include dependency graph for segment_manager.c:

Data Structures
struct	segment_manager_main_

Macros
#define	segment_manager_foreach_segment_w_lock(VAR, SM, BODY)

Typedefs
typedef struct segment_manager_main_	segment_manager_main_t

Functions
static segment_manager_props_t *	segment_manager_properties_get (segment_manager_t *sm)

segment_manager_props_t *	segment_manager_props_init (segment_manager_props_t *props)

u8	segment_manager_app_detached (segment_manager_t *sm)

void	segment_manager_app_detach (segment_manager_t *sm)

static u32	segment_manager_segment_index (segment_manager_t sm, fifo_segment_t seg)

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...

static fifo_segment_t *	segment_manager_get_segment_if_valid (segment_manager_t *sm, u32 segment_index)

static void	sm_lock_and_del_segment_inline (segment_manager_t *sm, u32 fs_index)
	Removes segment after acquiring writer lock. More...

void	segment_manager_lock_and_del_segment (segment_manager_t *sm, u32 fs_index)

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...

u64	segment_manager_segment_handle (segment_manager_t sm, fifo_segment_t segment)

u64	segment_manager_make_segment_handle (u32 segment_manager_index, u32 segment_index)

fifo_segment_t *	segment_manager_get_segment_w_handle (u64 segment_handle)

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...

void	segment_manager_segment_reader_lock (segment_manager_t *sm)

void	segment_manager_segment_reader_unlock (segment_manager_t *sm)

void	segment_manager_segment_writer_unlock (segment_manager_t *sm)

segment_manager_t *	segment_manager_alloc (void)

int	segment_manager_init (segment_manager_t *sm)

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

void	segment_manager_cleanup_detached_listener (segment_manager_t *sm)

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

static void	sm_free_w_index_helper (void *arg)

static void	segment_manager_free_safe (segment_manager_t *sm)

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)

u8	segment_manager_has_fifos (segment_manager_t *sm)

void	segment_manager_del_sessions (segment_manager_t *sm)
	Initiate disconnects for all sessions 'owned' by a segment manager. More...

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

int	segment_manager_alloc_session_fifos (segment_manager_t sm, u32 thread_index, 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)

u32	segment_manager_evt_q_expected_size (u32 q_len)

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

svm_msg_q_t *	segment_manager_event_queue (segment_manager_t *sm)

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

void	segment_manager_main_init (segment_manager_main_init_args_t *a)

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

void	segment_manager_format_sessions (segment_manager_t *sm, int verbose)

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

Variables
static segment_manager_main_t	sm_main

static vlib_cli_command_t	segment_manager_show_command
	(constructor) VLIB_CLI_COMMAND (segment_manager_show_command) More...

Macro Definition Documentation

◆ segment_manager_foreach_segment_w_lock

#define segment_manager_foreach_segment_w_lock	(	VAR,
		SM,
		BODY
	)

Value:

do {                                                                    \
    clib_rwlock_reader_lock (&(SM)->segments_rwlock);                   \
    pool_foreach((VAR), ((SM)->segments)) (BODY);                       \
    clib_rwlock_reader_unlock (&(SM)->segments_rwlock);                 \
} while (0)

Definition at line 39 of file segment_manager.c.

Typedef Documentation

◆ segment_manager_main_t

typedef struct segment_manager_main_ segment_manager_main_t

Function Documentation

◆ 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 332 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 871 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 678 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 835 of file segment_manager.c.

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◆ segment_manager_cleanup_detached_listener()

void segment_manager_cleanup_detached_listener ( segment_manager_t * sm )

Definition at line 452 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 782 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 915 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 194 of file segment_manager.c.

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◆ segment_manager_del_sessions()

void segment_manager_del_sessions ( segment_manager_t * sm )

Initiate disconnects for all sessions 'owned' by a segment manager.

Cleanup segment manager sessions.

Definition at line 591 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 825 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 906 of file segment_manager.c.

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◆ segment_manager_evt_q_expected_size()

u32 segment_manager_evt_q_expected_size ( u32 q_len )

Definition at line 849 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 1029 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 467 of file segment_manager.c.

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◆ segment_manager_free_safe()

static void segment_manager_free_safe ( segment_manager_t * sm )

static

Definition at line 512 of file segment_manager.c.

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◆ segment_manager_get()

segment_manager_t* segment_manager_get ( u32 index )

Definition at line 542 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 548 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 265 of file segment_manager.c.

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◆ segment_manager_get_segment_if_valid()

static fifo_segment_t* segment_manager_get_segment_if_valid	(	segment_manager_t *	sm,
		u32	segment_index
	)

static

Definition at line 222 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 segment_handle )

Definition at line 286 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 307 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 562 of file segment_manager.c.

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◆ segment_manager_index()

u32 segment_manager_index ( segment_manager_t * sm )

Definition at line 556 of file segment_manager.c.

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◆ segment_manager_init()

int segment_manager_init ( segment_manager_t * sm )

Definition at line 343 of file segment_manager.c.

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◆ segment_manager_init_first()

int segment_manager_init_first ( segment_manager_t * sm )

Initializes segment manager based on options provided.

Returns error if ssvm segment(s) allocation fails.

Definition at line 364 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 527 of file segment_manager.c.

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◆ segment_manager_lock_and_del_segment()

void segment_manager_lock_and_del_segment	(	segment_manager_t *	sm,
		u32	fs_index
	)

Definition at line 256 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 936 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 279 of file segment_manager.c.

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◆ segment_manager_properties_get()

static segment_manager_props_t* segment_manager_properties_get ( segment_manager_t * sm )

static

Definition at line 47 of file segment_manager.c.

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◆ segment_manager_props_init()

segment_manager_props_t* segment_manager_props_init ( segment_manager_props_t * props )

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 271 of file segment_manager.c.

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◆ segment_manager_segment_index()

static u32 segment_manager_segment_index	(	segment_manager_t *	sm,
		fifo_segment_t *	seg
	)

inlinestatic

Definition at line 80 of file segment_manager.c.

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◆ segment_manager_segment_reader_lock()

void segment_manager_segment_reader_lock ( segment_manager_t * sm )

Definition at line 314 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 320 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 326 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 1091 of file segment_manager.c.

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◆ segment_manager_show_fn()

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

static

Definition at line 955 of file segment_manager.c.

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◆ segment_manager_try_alloc_fifos()

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

Definition at line 639 of file segment_manager.c.

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◆ sm_free_w_index_helper()

static void sm_free_w_index_helper ( void * arg )

static

Definition at line 500 of file segment_manager.c.

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◆ sm_lock_and_del_segment_inline()

static void sm_lock_and_del_segment_inline	(	segment_manager_t *	sm,
		u32	fs_index
	)

inlinestatic

Removes segment after acquiring writer lock.

Definition at line 234 of file segment_manager.c.

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Variable Documentation

◆ segment_manager_show_command

vlib_cli_command_t segment_manager_show_command

static

Initial value:

=
{
  .path = "show segment-manager",
  .short_help = "show segment-manager [segments][verbose]",
  .function = segment_manager_show_fn,
}

(constructor) VLIB_CLI_COMMAND (segment_manager_show_command)

Definition at line 1020 of file segment_manager.c.

◆ sm_main

segment_manager_main_t sm_main

static

Definition at line 37 of file segment_manager.c.

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ segment_manager_foreach_segment_w_lock

Typedef Documentation

◆ segment_manager_main_t

Function Documentation

◆ 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_cleanup_detached_listener()

◆ 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_free_safe()

◆ segment_manager_get()

◆ segment_manager_get_if_valid()

◆ segment_manager_get_segment()

◆ segment_manager_get_segment_if_valid()

◆ 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_first()

◆ segment_manager_init_free()

◆ segment_manager_lock_and_del_segment()

◆ segment_manager_main_init()

◆ segment_manager_make_segment_handle()

◆ segment_manager_properties_get()

◆ segment_manager_props_init()

◆ segment_manager_segment_handle()

◆ segment_manager_segment_index()

◆ segment_manager_segment_reader_lock()

◆ segment_manager_segment_reader_unlock()

◆ segment_manager_segment_writer_unlock()

◆ segment_manager_set_watermarks()

◆ segment_manager_show_fn()

◆ segment_manager_try_alloc_fifos()

◆ sm_free_w_index_helper()

◆ sm_lock_and_del_segment_inline()

Variable Documentation

◆ segment_manager_show_command

◆ sm_main