transport.h File Reference

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Data Structures
struct	transport_send_params_

Macros
#define	TRANSPORT_PACER_MIN_MSS   1460
#define	TRANSPORT_PACER_MIN_BURST   TRANSPORT_PACER_MIN_MSS
#define	TRANSPORT_PACER_MAX_BURST   (43 * TRANSPORT_PACER_MIN_MSS)
#define	TRANSPORT_PACER_MAX_BURST_PKTS   43
#define	TRANSPORT_PACER_BURSTS_PER_RTT   20
#define	TRANSPORT_PACER_MIN_IDLE   100
#define	TRANSPORT_PACER_IDLE_FACTOR   0.05
#define	transport_proto_foreach(VAR, BODY)

Typedefs
typedef struct _transport_options_t	transport_options_t
typedef enum transport_snd_flags_	transport_snd_flags_t
typedef struct transport_send_params_	transport_send_params_t
typedef struct _transport_proto_vft	transport_proto_vft_t

Enumerations
enum	transport_snd_flags_ { TRANSPORT_SND_F_DESCHED = 1 << 0, TRANSPORT_SND_F_POSTPONE = 1 << 1, TRANSPORT_SND_N_FLAGS }

Functions
int	transport_connect (transport_proto_t tp, transport_endpoint_cfg_t *tep)
void	transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
void	transport_reset (transport_proto_t tp, u32 conn_index, u8 thread_index)
u32	transport_start_listen (transport_proto_t tp, u32 session_index, transport_endpoint_t *tep)
u32	transport_stop_listen (transport_proto_t tp, u32 conn_index)
void	transport_cleanup (transport_proto_t tp, u32 conn_index, u8 thread_index)
void	transport_cleanup_half_open (transport_proto_t tp, u32 conn_index)
void	transport_get_endpoint (transport_proto_t tp, u32 conn_index, u32 thread_index, transport_endpoint_t *tep, u8 is_lcl)
void	transport_get_listener_endpoint (transport_proto_t tp, u32 conn_index, transport_endpoint_t *tep, u8 is_lcl)
static transport_connection_t *	transport_get_connection (transport_proto_t tp, u32 conn_index, u8 thread_index)
static transport_connection_t *	transport_get_listener (transport_proto_t tp, u32 conn_index)
static transport_connection_t *	transport_get_half_open (transport_proto_t tp, u32 conn_index)
static int	transport_custom_tx (transport_proto_t tp, void *s, transport_send_params_t *sp)
static int	transport_app_rx_evt (transport_proto_t tp, u32 conn_index, u32 thread_index)
static u32	transport_connection_snd_params (transport_connection_t *tc, transport_send_params_t *sp)
	Get send parameters for transport connection. More...
static u8	transport_connection_is_descheduled (transport_connection_t *tc)
static void	transport_connection_deschedule (transport_connection_t *tc)
static u8	transport_connection_is_cless (transport_connection_t *tc)
void	transport_connection_reschedule (transport_connection_t *tc)
void	transport_fifos_init_ooo (transport_connection_t *tc)
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_t	transport_register_new_protocol (const transport_proto_vft_t *vft, fib_protocol_t fib_proto, u32 output_node)
transport_proto_vft_t *	transport_protocol_get_vft (transport_proto_t tp)
	Get transport virtual function table. More...
void	transport_update_time (clib_time_type_t time_now, u8 thread_index)
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...
int	transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t *rmt, ip46_address_t *lcl_addr, u16 *lcl_port)
void	transport_share_local_endpoint (u8 proto, ip46_address_t *lcl_ip, u16 port)
void	transport_endpoint_cleanup (u8 proto, ip46_address_t *lcl_ip, u16 port)
void	transport_enable_disable (vlib_main_t *vm, u8 is_en)
void	transport_init (void)
static u32	transport_elog_track_index (transport_connection_t *tc)
void	transport_connection_tx_pacer_reset (transport_connection_t *tc, u64 rate_bytes_per_sec, u32 initial_bucket, clib_us_time_t rtt)
void	transport_connection_tx_pacer_init (transport_connection_t *tc, u64 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, clib_us_time_t rtt)
	Update tx pacer pacing rate. More...
u32	transport_connection_tx_pacer_burst (transport_connection_t *tc)
	Get tx pacer max burst. More...
u64	transport_connection_tx_pacer_rate (transport_connection_t *tc)
	Get tx pacer current rate. More...
void	transport_connection_tx_pacer_reset_bucket (transport_connection_t *tc, u32 bucket)
	Reset tx pacer bucket. More...
static u8	transport_connection_is_tx_paced (transport_connection_t *tc)
	Check if transport connection is paced. More...
u8 *	format_transport_pacer (u8 *s, va_list *args)
void	transport_connection_update_tx_bytes (transport_connection_t *tc, u32 bytes)
	Update tx bytes for paced transport connection. More...
void	transport_connection_tx_pacer_update_bytes (transport_connection_t *tc, u32 bytes)

Variables
transport_proto_vft_t *	tp_vfts
	Per-type vector of transport protocol virtual function tables. More...

Macro Definition Documentation

TRANSPORT_PACER_BURSTS_PER_RTT

#define TRANSPORT_PACER_BURSTS_PER_RTT   20

Definition at line 26 of file transport.h.

TRANSPORT_PACER_IDLE_FACTOR

#define TRANSPORT_PACER_IDLE_FACTOR   0.05

Definition at line 28 of file transport.h.

TRANSPORT_PACER_MAX_BURST

#define TRANSPORT_PACER_MAX_BURST   (43 * TRANSPORT_PACER_MIN_MSS)

Definition at line 24 of file transport.h.

TRANSPORT_PACER_MAX_BURST_PKTS

#define TRANSPORT_PACER_MAX_BURST_PKTS   43

Definition at line 25 of file transport.h.

TRANSPORT_PACER_MIN_BURST

#define TRANSPORT_PACER_MIN_BURST   TRANSPORT_PACER_MIN_MSS

Definition at line 23 of file transport.h.

TRANSPORT_PACER_MIN_IDLE

#define TRANSPORT_PACER_MIN_IDLE   100

Definition at line 27 of file transport.h.

TRANSPORT_PACER_MIN_MSS

#define TRANSPORT_PACER_MIN_MSS   1460

Definition at line 22 of file transport.h.

transport_proto_foreach

#define transport_proto_foreach	(		VAR,
			BODY
	)

Value:

do {                                                            \
    for (VAR = 0; VAR < vec_len (tp_vfts); VAR++)               \
      if (tp_vfts[VAR].push_header != 0)                        \
        do { BODY; } while (0);                                 \
} while (0)

Definition at line 127 of file transport.h.

Typedef Documentation

transport_options_t

typedef struct _transport_options_t transport_options_t

transport_proto_vft_t

typedef struct _transport_proto_vft transport_proto_vft_t

transport_send_params_t

typedef struct transport_send_params_ transport_send_params_t

transport_snd_flags_t

typedef enum transport_snd_flags_ transport_snd_flags_t

Enumeration Type Documentation

transport_snd_flags_

enum transport_snd_flags_

Enumerator
TRANSPORT_SND_F_DESCHED
TRANSPORT_SND_F_POSTPONE
TRANSPORT_SND_N_FLAGS

Definition at line 38 of file transport.h.

Function Documentation

format_transport_pacer()

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

Definition at line 627 of file transport.c.

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transport_alloc_local_endpoint()

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

Definition at line 565 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 475 of file transport.c.

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transport_app_rx_evt()

static int transport_app_rx_evt ( transport_proto_t  tp, u32  conn_index, u32  thread_index  )

inlinestatic

Definition at line 176 of file transport.h.

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transport_cleanup()

void transport_cleanup	(	transport_proto_t	tp,
		u32	conn_index,
		u8	thread_index
	)

Definition at line 302 of file transport.c.

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transport_cleanup_half_open()

void transport_cleanup_half_open	(	transport_proto_t	tp,
		u32	conn_index
	)

Definition at line 308 of file transport.c.

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transport_close()

void transport_close	(	transport_proto_t	tp,
		u32	conn_index,
		u8	thread_index
	)

Definition at line 321 of file transport.c.

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transport_connect()

int transport_connect	(	transport_proto_t	tp,
		transport_endpoint_cfg_t *	tep
	)

Definition at line 315 of file transport.c.

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transport_connection_deschedule()

static void transport_connection_deschedule ( transport_connection_t *  tc )

inlinestatic

Definition at line 209 of file transport.h.

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transport_connection_is_cless()

static u8 transport_connection_is_cless ( transport_connection_t *  tc )

inlinestatic

Definition at line 215 of file transport.h.

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transport_connection_is_descheduled()

static u8 transport_connection_is_descheduled ( transport_connection_t *  tc )

inlinestatic

Definition at line 203 of file transport.h.

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transport_connection_is_tx_paced()

static u8 transport_connection_is_tx_paced ( transport_connection_t *  tc )

inlinestatic

Check if transport connection is paced.

Definition at line 319 of file transport.h.

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transport_connection_reschedule()

void transport_connection_reschedule

(

transport_connection_t *

tc

)

Definition at line 766 of file transport.c.

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transport_connection_snd_params()

static u32 transport_connection_snd_params ( transport_connection_t *  tc, transport_send_params_t *  sp  )

inlinestatic

Get send parameters for transport connection.

These include maximum tx burst, mss, tx offset and other flags transport might want to provide to sessin layer

Parameters

tc	transport connection
sp	send paramaters

Definition at line 196 of file transport.h.

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transport_connection_tx_pacer_burst()

u32 transport_connection_tx_pacer_burst

(

transport_connection_t *

tc

)

Get tx pacer max burst.

Parameters

tc	transport connection
time_now	current cpu time

Returns

max burst for connection

Definition at line 739 of file transport.c.

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transport_connection_tx_pacer_init()

void transport_connection_tx_pacer_init	(	transport_connection_t *	tc,
		u64	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 721 of file transport.c.

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transport_connection_tx_pacer_rate()

u64 transport_connection_tx_pacer_rate

(

transport_connection_t *

tc

)

Get tx pacer current rate.

Parameters

tc	transport connection

Returns

rate for connection in bytes/s

Definition at line 746 of file transport.c.

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transport_connection_tx_pacer_reset()

void transport_connection_tx_pacer_reset	(	transport_connection_t *	tc,
		u64	rate_bytes_per_sec,
		u32	initial_bucket,
		clib_us_time_t	rtt
	)

Definition at line 703 of file transport.c.

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transport_connection_tx_pacer_reset_bucket()

void transport_connection_tx_pacer_reset_bucket	(	transport_connection_t *	tc,
		u32	bucket
	)

Reset tx pacer bucket.

Parameters

tc	transport connection
bucket	value the bucket will be reset to

Definition at line 714 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,
		clib_us_time_t	rtt
	)

Update tx pacer pacing rate.

Parameters

tc	transport connection
bytes_per_sec	new pacing rate
rtt	connection rtt that is used to compute inactivity time after which pacer bucket is reset to 1 mtu

Definition at line 731 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 759 of file transport.c.

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transport_connection_update_tx_bytes()

void transport_connection_update_tx_bytes	(	transport_connection_t *	tc,
		u32	bytes
	)

Update tx bytes for paced transport connection.

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

Parameters

tc	transport connection
bytes	bytes recently sent

Definition at line 752 of file transport.c.

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transport_custom_tx()

static int transport_custom_tx ( transport_proto_t  tp, void *  s, transport_send_params_t *  sp  )

inlinestatic

Definition at line 169 of file transport.h.

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transport_elog_track_index()

static u32 transport_elog_track_index ( transport_connection_t *  tc )

inlinestatic

Definition at line 252 of file transport.h.

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transport_enable_disable()

void transport_enable_disable	(	vlib_main_t *	vm,
		u8	is_en
	)

Definition at line 802 of file transport.c.

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transport_endpoint_cleanup()

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

Definition at line 421 of file transport.c.

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transport_fifos_init_ooo()

void transport_fifos_init_ooo

(

transport_connection_t *

tc

)

Definition at line 783 of file transport.c.

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transport_get_connection()

static transport_connection_t* transport_get_connection ( transport_proto_t  tp, u32  conn_index, u8  thread_index  )

inlinestatic

Definition at line 150 of file transport.h.

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transport_get_endpoint()

void transport_get_endpoint	(	transport_proto_t	tp,
		u32	conn_index,
		u32	thread_index,
		transport_endpoint_t *	tep,
		u8	is_lcl
	)

Definition at line 373 of file transport.c.

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transport_get_half_open()

static transport_connection_t* transport_get_half_open ( transport_proto_t  tp, u32  conn_index  )

inlinestatic

Definition at line 163 of file transport.h.

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transport_get_listener()

static transport_connection_t* transport_get_listener ( transport_proto_t  tp, u32  conn_index  )

inlinestatic

Definition at line 157 of file transport.h.

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transport_get_listener_endpoint()

void transport_get_listener_endpoint	(	transport_proto_t	tp,
		u32	conn_index,
		transport_endpoint_t *	tep,
		u8	is_lcl
	)

Definition at line 389 of file transport.c.

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transport_init()

void transport_init

(

void

)

Definition at line 813 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 282 of file transport.c.

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transport_register_new_protocol()

transport_proto_t transport_register_new_protocol	(	const transport_proto_vft_t *	vft,
		fib_protocol_t	fib_proto,
		u32	output_node
	)

Definition at line 259 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 246 of file transport.c.

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transport_reset()

void transport_reset	(	transport_proto_t	tp,
		u32	conn_index,
		u8	thread_index
	)

Definition at line 327 of file transport.c.

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transport_share_local_endpoint()

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

Definition at line 456 of file transport.c.

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transport_start_listen()

u32 transport_start_listen	(	transport_proto_t	tp,
		u32	session_index,
		transport_endpoint_t *	tep
	)

Definition at line 336 of file transport.c.

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transport_stop_listen()

u32 transport_stop_listen	(	transport_proto_t	tp,
		u32	conn_index
	)

Definition at line 343 of file transport.c.

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transport_update_time()

void transport_update_time	(	clib_time_type_t	time_now,
		u8	thread_index
	)

Definition at line 791 of file transport.c.

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Variable Documentation

tp_vfts

transport_proto_vft_t* tp_vfts

Per-type vector of transport protocol virtual function tables.

Definition at line 29 of file transport.c.