typedef void (timer_expiration_handler) (tcp_connection_t * tc);
-extern timer_expiration_handler tcp_timer_delack_handler;
extern timer_expiration_handler tcp_timer_retransmit_handler;
extern timer_expiration_handler tcp_timer_persist_handler;
extern timer_expiration_handler tcp_timer_retransmit_syn_handler;
typedef enum _tcp_error
{
-#define tcp_error(n,s) TCP_ERROR_##n,
+#define tcp_error(f, n, s, d) TCP_ERROR_##f,
#include <vnet/tcp/tcp_error.def>
#undef tcp_error
TCP_N_ERROR,
_(to_closing, u32, "timeout closing") \
_(tr_abort, u32, "timer retransmit abort") \
_(rst_unread, u32, "reset on close due to unread data") \
+ _(no_buffer, u32, "out of buffers") \
typedef struct tcp_wrk_stats_
{
#undef _
} tcp_wrk_stats_t;
+typedef enum
+{
+#define _(name, type, str) TCP_STAT_##name,
+ foreach_tcp_wrk_stat
+#undef _
+} tcp_wrk_stats_e;
+
typedef struct tcp_free_req_
{
clib_time_type_t free_time;
/** convenience pointer to this thread's vlib main */
vlib_main_t *vm;
- /** worker time */
- u32 time_now;
+ /** Time used for high precision (us) measurements in seconds */
+ f64 time_us;
+
+ /** Time measured in @ref TCP_TSTAMP_TICK used for time stamps */
+ u32 time_tstamp;
/* Max timers to be handled per dispatch loop */
u32 max_timers_per_loop;
- /** Session layer edge indices to tcp output */
- u32 tco_next_node[2];
-
/* Fifo of pending timer expirations */
u32 *pending_timers;
/* fifo of pending free requests */
tcp_cleanup_req_t *pending_cleanups;
+ /** Session layer edge indices to tcp output */
+ u32 tco_next_node[2];
+
/** worker timer wheel */
tcp_timer_wheel_t timer_wheel;
* a zero rwnd advertisement */
u32 rwnd_min_update_ack;
- /** Delayed ack time (disabled) */
- u16 delack_time;
-
/** Timer ticks to wait for close from app */
- u16 closewait_time;
+ u32 closewait_time;
/** Timer ticks to wait in time-wait. Also known as 2MSL */
- u16 timewait_time;
+ u32 timewait_time;
/** Timer ticks to wait in fin-wait1 to send fin and rcv fin-ack */
- u16 finwait1_time;
+ u32 finwait1_time;
/** Timer ticks to wait in last ack for ack */
- u16 lastack_time;
+ u32 lastack_time;
/** Timer ticks to wait in fin-wait2 for fin */
- u16 finwait2_time;
+ u32 finwait2_time;
/** Timer ticks to wait in closing for fin ack */
- u16 closing_time;
+ u32 closing_time;
+
+ /** Timer ticks to wait for free buffer */
+ u32 alloc_err_timeout;
/** Time to wait (sec) before cleaning up the connection */
f32 cleanup_time;
/** Number of preallocated connections */
u32 preallocated_connections;
- /** Number of preallocated half-open connections */
- u32 preallocated_half_open_connections;
+ /** Maxium allowed GSO packet size */
+ u32 max_gso_size;
/** Vectors of src addresses. Optional unless one needs > 63K active-opens */
ip4_address_t *ip4_src_addrs;
/* Pool of listeners. */
tcp_connection_t *listener_pool;
- f64 tstamp_ticks_per_clock;
-
/** vlib buffer size */
u32 bytes_per_buffer;
- /** Session layer edge indices to ip lookup (syns, rst) */
- u32 ipl_next_node[2];
-
/** Dispatch table by state and flags */
tcp_lookup_dispatch_t dispatch_table[TCP_N_STATES][64];
- clib_spinlock_t half_open_lock;
-
- /** Pool of half-open connections on which we've sent a SYN */
- tcp_connection_t *half_open_connections;
-
/** Seed used to generate random iss */
tcp_iss_seed_t iss_seed;
/** Protocol configuration */
tcp_configuration_t cfg;
+
+ /** message ID base for API */
+ u16 msg_id_base;
} tcp_main_t;
extern tcp_main_t tcp_main;
extern vlib_node_registration_t tcp6_rcv_process_node;
extern vlib_node_registration_t tcp4_listen_node;
extern vlib_node_registration_t tcp6_listen_node;
+extern vlib_node_registration_t tcp4_input_nolookup_node;
+extern vlib_node_registration_t tcp6_input_nolookup_node;
+extern vlib_node_registration_t tcp4_drop_node;
+extern vlib_node_registration_t tcp6_drop_node;
#define tcp_cfg tcp_main.cfg
#define tcp_node_index(node_id, is_ip4) \
return &tcp_main.wrk_ctx[thread_index];
}
-#if (VLIB_BUFFER_TRACE_TRAJECTORY)
-#define tcp_trajectory_add_start(b, start) \
-{ \
- (*vlib_buffer_trace_trajectory_cb) (b, start); \
-}
-#else
-#define tcp_trajectory_add_start(b, start)
-#endif
-
tcp_connection_t *tcp_connection_alloc (u8 thread_index);
tcp_connection_t *tcp_connection_alloc_w_base (u8 thread_index,
- tcp_connection_t * base);
+ tcp_connection_t **base);
void tcp_connection_free (tcp_connection_t * tc);
void tcp_connection_close (tcp_connection_t * tc);
void tcp_connection_cleanup (tcp_connection_t * tc);
int tcp_fastrecovery_prr_snd_space (tcp_connection_t * tc);
void tcp_reschedule (tcp_connection_t * tc);
fib_node_index_t tcp_lookup_rmt_in_fib (tcp_connection_t * tc);
-u32 tcp_session_push_header (transport_connection_t * tconn,
- vlib_buffer_t * b);
+u32 tcp_session_push_header (transport_connection_t *tconn, vlib_buffer_t **b,
+ u32 n_bufs);
int tcp_session_custom_tx (void *conn, transport_send_params_t * sp);
void tcp_connection_timers_init (tcp_connection_t * tc);
void tcp_connection_tx_pacer_reset (tcp_connection_t * tc, u32 window,
u32 start_bucket);
void tcp_program_cleanup (tcp_worker_ctx_t * wrk, tcp_connection_t * tc);
+void tcp_check_gso (tcp_connection_t *tc);
+int tcp_buffer_make_reset (vlib_main_t *vm, vlib_buffer_t *b, u8 is_ip4);
void tcp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add);
int tcp_configure_v4_source_address_range (vlib_main_t * vm,
ip4_address_t * start,