transport.c File Reference

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Macros
#define	TRANSPORT_PACER_MIN_MSS   1460
#define	TRANSPORT_PACER_MIN_BURST   TRANSPORT_PACER_MIN_MSS
#define	PORT_MASK   ((1 << 16)- 1)
#define	SPACER_CPU_TICKS_PER_PERIOD_SHIFT   10
#define	SPACER_CPU_TICKS_PER_PERIOD   (1 << SPACER_CPU_TICKS_PER_PERIOD_SHIFT)

Functions
u8 *	format_transport_proto (u8 *s, va_list *args)
u8 *	format_transport_proto_short (u8 *s, va_list *args)
u8 *	format_transport_connection (u8 *s, va_list *args)
u8 *	format_transport_listen_connection (u8 *s, va_list *args)
u8 *	format_transport_half_open_connection (u8 *s, va_list *args)
uword	unformat_transport_proto (unformat_input_t *input, va_list *args)
u32	transport_endpoint_lookup (transport_endpoint_table_t *ht, u8 proto, ip46_address_t *ip, u16 port)
void	transport_endpoint_table_add (transport_endpoint_table_t *ht, u8 proto, transport_endpoint_t *te, u32 value)
void	transport_endpoint_table_del (transport_endpoint_table_t *ht, u8 proto, transport_endpoint_t *te)
void	transport_register_protocol (transport_proto_t transport_proto, const transport_proto_vft_t *vft, fib_protocol_t fib_proto, u32 output_node)
	Register transport virtual function table. More...
transport_proto_vft_t *	transport_protocol_get_vft (transport_proto_t transport_proto)
	Get transport virtual function table. More...
transport_service_type_t	transport_protocol_service_type (transport_proto_t tp)
transport_tx_fn_type_t	transport_protocol_tx_fn_type (transport_proto_t tp)
u8	transport_protocol_is_cl (transport_proto_t tp)
void	transport_endpoint_del (u32 tepi)
static transport_endpoint_t *	transport_endpoint_new (void)
void	transport_endpoint_cleanup (u8 proto, ip46_address_t *lcl_ip, u16 port)
static void	transport_endpoint_mark_used (u8 proto, ip46_address_t *ip, u16 port)
int	transport_alloc_local_port (u8 proto, ip46_address_t *ip)
	Allocate local port and add if successful add entry to local endpoint table to mark the pair as used. More...
static clib_error_t *	transport_get_interface_ip (u32 sw_if_index, u8 is_ip4, ip46_address_t *addr)
static clib_error_t *	transport_find_local_ip_for_remote (u32 sw_if_index, transport_endpoint_t *rmt, ip46_address_t *lcl_addr)
int	transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t *rmt_cfg, ip46_address_t *lcl_addr, u16 *lcl_port)
u8 *	format_transport_pacer (u8 *s, va_list *args)
static u32	spacer_max_burst (spacer_t *pacer, u64 norm_time_now)
static void	spacer_update_bucket (spacer_t *pacer, u32 bytes)
static void	spacer_update_max_burst_size (spacer_t *pacer, u32 max_burst_bytes)
static void	spacer_set_pace_rate (spacer_t *pacer, u64 rate_bytes_per_sec)
void	transport_connection_tx_pacer_reset (transport_connection_t *tc, u32 rate_bytes_per_sec, u32 start_bucket, u64 time_now)
void	transport_connection_tx_pacer_init (transport_connection_t *tc, u32 rate_bytes_per_sec, u32 initial_bucket)
	Initialize tx pacer for connection. More...
void	transport_connection_tx_pacer_update (transport_connection_t *tc, u64 bytes_per_sec)
	Update tx pacer pacing rate. More...
u32	transport_connection_tx_pacer_burst (transport_connection_t *tc, u64 time_now)
u32	transport_connection_snd_space (transport_connection_t *tc, u64 time_now, u16 mss)
	Get maximum tx burst allowed for transport connection. More...
void	transport_connection_update_tx_stats (transport_connection_t *tc, u32 bytes)
	Update tx byte stats for transport connection. More...
void	transport_connection_tx_pacer_update_bytes (transport_connection_t *tc, u32 bytes)
void	transport_init_tx_pacers_period (void)
	Initialize period for tx pacers. More...
void	transport_update_time (f64 time_now, u8 thread_index)
void	transport_enable_disable (vlib_main_t *vm, u8 is_en)
void	transport_init (void)

Variables
transport_proto_vft_t *	tp_vfts
	Per-type vector of transport protocol virtual function tables. More...
static u32	port_allocator_seed
static transport_endpoint_table_t	local_endpoints_table
static transport_endpoint_t *	local_endpoints
static clib_spinlock_t	local_endpoints_lock
static double	transport_pacer_period

Macro Definition Documentation

PORT_MASK

#define PORT_MASK   ((1 << 16)- 1)

Definition at line 281 of file transport.c.

SPACER_CPU_TICKS_PER_PERIOD

#define SPACER_CPU_TICKS_PER_PERIOD   (1 << SPACER_CPU_TICKS_PER_PERIOD_SHIFT)

Definition at line 488 of file transport.c.

SPACER_CPU_TICKS_PER_PERIOD_SHIFT

#define SPACER_CPU_TICKS_PER_PERIOD_SHIFT   10

Definition at line 487 of file transport.c.

TRANSPORT_PACER_MIN_BURST

#define TRANSPORT_PACER_MIN_BURST   TRANSPORT_PACER_MIN_MSS

Definition at line 51 of file transport.c.

TRANSPORT_PACER_MIN_MSS

#define TRANSPORT_PACER_MIN_MSS   1460

Definition at line 50 of file transport.c.

Function Documentation

format_transport_connection()

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

Definition at line 98 of file transport.c.

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format_transport_half_open_connection()

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

Definition at line 140 of file transport.c.

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format_transport_listen_connection()

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

Definition at line 125 of file transport.c.

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format_transport_pacer()

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

Definition at line 491 of file transport.c.

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format_transport_proto()

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

Definition at line 54 of file transport.c.

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format_transport_proto_short()

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

Definition at line 76 of file transport.c.

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spacer_max_burst()

static u32 spacer_max_burst ( spacer_t *  pacer, u64  norm_time_now  )

inlinestatic

Definition at line 502 of file transport.c.

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spacer_set_pace_rate()

static void spacer_set_pace_rate ( spacer_t *  pacer, u64  rate_bytes_per_sec  )

inlinestatic

Definition at line 531 of file transport.c.

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spacer_update_bucket()

static void spacer_update_bucket ( spacer_t *  pacer, u32  bytes  )

inlinestatic

Definition at line 517 of file transport.c.

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spacer_update_max_burst_size()

static void spacer_update_max_burst_size ( spacer_t *  pacer, u32  max_burst_bytes  )

inlinestatic

Definition at line 524 of file transport.c.

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transport_alloc_local_endpoint()

int transport_alloc_local_endpoint	(	u8	proto,
		transport_endpoint_cfg_t *	rmt_cfg,
		ip46_address_t *	lcl_addr,
		u16 *	lcl_port
	)

Definition at line 431 of file transport.c.

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transport_alloc_local_port()

int transport_alloc_local_port	(	u8	proto,
		ip46_address_t *	ip
	)

Allocate local port and add if successful add entry to local endpoint table to mark the pair as used.

Definition at line 334 of file transport.c.

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transport_connection_snd_space()

u32 transport_connection_snd_space	(	transport_connection_t *	tc,
		u64	time_now,
		u16	mss
	)

Get maximum tx burst allowed for transport connection.

Parameters

tc	transport connection
time_now	current cpu time as returned by clib_cpu_time_now
mss	transport's mss

Definition at line 585 of file transport.c.

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transport_connection_tx_pacer_burst()

u32 transport_connection_tx_pacer_burst	(	transport_connection_t *	tc,
		u64	time_now
	)

Definition at line 577 of file transport.c.

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transport_connection_tx_pacer_init()

void transport_connection_tx_pacer_init	(	transport_connection_t *	tc,
		u32	rate_bytes_per_sec,
		u32	initial_bucket
	)

Initialize tx pacer for connection.

Parameters

tc	transport connection
rate_bytes_per_second	initial byte rate
burst_bytes	initial burst size in bytes

Definition at line 555 of file transport.c.

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transport_connection_tx_pacer_reset()

void transport_connection_tx_pacer_reset	(	transport_connection_t *	tc,
		u32	rate_bytes_per_sec,
		u32	start_bucket,
		u64	time_now
	)

Definition at line 538 of file transport.c.

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transport_connection_tx_pacer_update()

void transport_connection_tx_pacer_update	(	transport_connection_t *	tc,
		u64	bytes_per_sec
	)

Update tx pacer pacing rate.

Parameters

tc	transport connection
bytes_per_sec	new pacing rate

Definition at line 567 of file transport.c.

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transport_connection_tx_pacer_update_bytes()

void transport_connection_tx_pacer_update_bytes	(	transport_connection_t *	tc,
		u32	bytes
	)

Definition at line 611 of file transport.c.

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transport_connection_update_tx_stats()

void transport_connection_update_tx_stats	(	transport_connection_t *	tc,
		u32	bytes
	)

Update tx byte stats for transport connection.

If tx pacing is enabled, this also updates pacer bucket to account for the amount of bytes that have been sent.

Parameters

tc	transport connection
pkts	packets recently sent
bytes	bytes recently sent

Definition at line 603 of file transport.c.

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transport_enable_disable()

void transport_enable_disable	(	vlib_main_t *	vm,
		u8	is_en
	)

Definition at line 636 of file transport.c.

transport_endpoint_cleanup()

void transport_endpoint_cleanup	(	u8	proto,
		ip46_address_t *	lcl_ip,
		u16	port
	)

Definition at line 300 of file transport.c.

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transport_endpoint_del()

void transport_endpoint_del

(

u32

tepi

)

Definition at line 284 of file transport.c.

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transport_endpoint_lookup()

u32 transport_endpoint_lookup	(	transport_endpoint_table_t *	ht,
		u8	proto,
		ip46_address_t *	ip,
		u16	port
	)

Definition at line 184 of file transport.c.

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transport_endpoint_mark_used()

static void transport_endpoint_mark_used ( u8  proto, ip46_address_t *  ip, u16  port  )

static

Definition at line 317 of file transport.c.

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transport_endpoint_new()

static transport_endpoint_t* transport_endpoint_new ( void  )

inlinestatic

Definition at line 292 of file transport.c.

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transport_endpoint_table_add()

void transport_endpoint_table_add	(	transport_endpoint_table_t *	ht,
		u8	proto,
		transport_endpoint_t *	te,
		u32	value
	)

Definition at line 202 of file transport.c.

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transport_endpoint_table_del()

void transport_endpoint_table_del	(	transport_endpoint_table_t *	ht,
		u8	proto,
		transport_endpoint_t *	te
	)

Definition at line 216 of file transport.c.

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transport_find_local_ip_for_remote()

static clib_error_t* transport_find_local_ip_for_remote ( u32  sw_if_index, transport_endpoint_t *  rmt, ip46_address_t *  lcl_addr  )

static

Definition at line 397 of file transport.c.

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transport_get_interface_ip()

static clib_error_t* transport_get_interface_ip ( u32  sw_if_index, u8  is_ip4, ip46_address_t *  addr  )

static

Definition at line 371 of file transport.c.

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transport_init()

void transport_init

(

void

)

Definition at line 647 of file transport.c.

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transport_init_tx_pacers_period()

void transport_init_tx_pacers_period

(

void

)

Initialize period for tx pacers.

Defines a unit of time with respect to number of cpu cycles that is to be used by all tx pacers.

Definition at line 618 of file transport.c.

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transport_protocol_get_vft()

transport_proto_vft_t* transport_protocol_get_vft

(

transport_proto_t

transport_proto

)

Get transport virtual function table.

Parameters

type	- session type (not protocol type)

Definition at line 256 of file transport.c.

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transport_protocol_is_cl()

u8 transport_protocol_is_cl

(

transport_proto_t

tp

)

Definition at line 276 of file transport.c.

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transport_protocol_service_type()

transport_service_type_t transport_protocol_service_type

(

transport_proto_t

tp

)

Definition at line 264 of file transport.c.

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transport_protocol_tx_fn_type()

transport_tx_fn_type_t transport_protocol_tx_fn_type

(

transport_proto_t

tp

)

Definition at line 270 of file transport.c.

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transport_register_protocol()

void transport_register_protocol	(	transport_proto_t	transport_proto,
		const transport_proto_vft_t *	vft,
		fib_protocol_t	fib_proto,
		u32	output_node
	)

Register transport virtual function table.

Parameters

transport_proto	- transport protocol type (i.e., TCP, UDP ..)
vft	- virtual function table for transport proto
fib_proto	- network layer protocol
output_node	- output node index that session layer will hand off buffers to, for requested fib proto

Definition at line 238 of file transport.c.

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transport_update_time()

void transport_update_time	(	f64	time_now,
		u8	thread_index
	)

Definition at line 625 of file transport.c.

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unformat_transport_proto()

uword unformat_transport_proto	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 155 of file transport.c.

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Variable Documentation

local_endpoints

transport_endpoint_t* local_endpoints

static

Definition at line 38 of file transport.c.

local_endpoints_lock

clib_spinlock_t local_endpoints_lock

static

Definition at line 43 of file transport.c.

local_endpoints_table

transport_endpoint_table_t local_endpoints_table

static

Definition at line 33 of file transport.c.

port_allocator_seed

u32 port_allocator_seed

static

Definition at line 28 of file transport.c.

tp_vfts

transport_proto_vft_t* tp_vfts

Per-type vector of transport protocol virtual function tables.

Generate typed init functions for multiple hash table styles...

Definition at line 23 of file transport.c.

transport_pacer_period

double transport_pacer_period

static

Definition at line 48 of file transport.c.