TCP_N_TIMERS
} tcp_timers_e;
-typedef void (timer_expiration_handler) (u32 index, u32 thread_index);
-
-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;
-
#define TCP_TIMER_HANDLE_INVALID ((u32) ~0)
#define TCP_TIMER_TICK 0.1 /**< Timer tick in seconds */
f64 delivered_time; /**< Delivered time when sample taken */
f64 tx_time; /**< Transmit time for the burst */
f64 first_tx_time; /**< Connection first tx time at tx */
+ u64 tx_in_flight; /**< In flight at tx time */
+ u64 tx_lost; /**< Lost at tx time */
tcp_bts_flags_t flags; /**< Sample flag */
} tcp_bt_sample_t;
f64 prior_time; /**< Delivered time of sample used for rate */
f64 interval_time; /**< Time to ack the bytes delivered */
f64 rtt_time; /**< RTT for sample */
+ u64 tx_in_flight; /**< In flight at (re)transmit time */
+ u64 tx_lost; /**< Lost over interval */
u32 delivered; /**< Bytes delivered in interval_time */
u32 acked_and_sacked; /**< Bytes acked + sacked now */
- u32 lost; /**< Bytes lost now */
+ u32 last_lost; /**< Bytes lost now */
+ u32 lost; /**< Number of bytes lost over interval */
tcp_bts_flags_t flags; /**< Rate sample flags from bt sample */
} tcp_rate_sample_t;
u64 app_limited; /**< Delivered when app-limited detected */
f64 delivered_time; /**< Time last bytes were acked */
f64 first_tx_time; /**< Send time for recently delivered/sent */
+ u64 lost; /**< Total bytes lost */
tcp_byte_tracker_t *bt; /**< Tx byte tracker */
tcp_errors_t errors; /**< Soft connection errors */
#define tcp_csum_offload(tc) (!((tc)->cfg_flags & TCP_CFG_F_NO_CSUM_OFFLOAD))
+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;
+
always_inline void
tcp_cong_recovery_off (tcp_connection_t * tc)
{
_(rxt_segs, u64, "segments retransmitted") \
_(tr_events, u32, "timer retransmit events") \
_(to_closewait, u32, "timeout close-wait") \
+ _(to_closewait2, u32, "timeout close-wait w/data") \
_(to_finwait1, u32, "timeout fin-wait-1") \
+ _(to_finwait2, u32, "timeout fin-wait-2") \
_(to_lastack, u32, "timeout last-ack") \
_(to_closing, u32, "timeout closing") \
_(tr_abort, u32, "timer retransmit abort") \
#undef _
} tcp_wrk_stats_t;
+typedef struct tcp_free_req_
+{
+ clib_time_type_t free_time;
+ u32 connection_index;
+} tcp_cleanup_req_t;
+
typedef struct tcp_worker_ctx_
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
/** worker time */
u32 time_now;
+ /* Max timers to be handled per dispatch loop */
+ u32 max_timers_per_loop;
+
/** tx frames for ip 4/6 lookup nodes */
vlib_frame_t *ip_lookup_tx_frames[2];
/** tx buffer free list */
u32 *tx_buffers;
+ /* Fifo of pending timer expirations */
+ u32 *pending_timers;
+
+ /* fifo of pending free requests */
+ tcp_cleanup_req_t *pending_cleanups;
+
/** worker timer wheel */
tw_timer_wheel_16t_2w_512sl_t timer_wheel;
/** Timer ticks to wait in closing for fin ack */
u16 closing_time;
- /** Timer ticks to wait before cleaning up the connection */
- u16 cleanup_time;
+ /** Time to wait (sec) before cleaning up the connection */
+ f32 cleanup_time;
/** Number of preallocated connections */
u32 preallocated_connections;
void tcp_send_ack (tcp_connection_t * tc);
void tcp_update_burst_snd_vars (tcp_connection_t * tc);
void tcp_update_rto (tcp_connection_t * tc);
-void tcp_flush_frames_to_output (tcp_worker_ctx_t * wrk);
void tcp_send_window_update_ack (tcp_connection_t * tc);
void tcp_program_ack (tcp_connection_t * tc);
return available_wnd - flight_size;
}
+static inline u8
+tcp_is_descheduled (tcp_connection_t * tc)
+{
+ return (transport_connection_is_descheduled (&tc->connection) ? 1 : 0);
+}
+
always_inline u8
tcp_is_lost_fin (tcp_connection_t * tc)
{
u32 tcp_snd_space (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);
void tcp_connection_tx_pacer_update (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);
always_inline void
tcp_cc_rcv_ack (tcp_connection_t * tc, tcp_rate_sample_t * rs)
void newreno_rcv_cong_ack (tcp_connection_t * tc, tcp_cc_ack_t ack_type,
tcp_rate_sample_t * rs);
+/**
+ * Initialize connection by gleaning network and rcv params from buffer
+ *
+ * @param tc connection to initialize
+ * @param b buffer whose current data is pointing at ip
+ * @param is_ip4 flag set to 1 if using ip4
+ */
+void tcp_init_w_buffer (tcp_connection_t * tc, vlib_buffer_t * b, u8 is_ip4);
/**
* Push TCP header to buffer