tcp: add option for always on event logging

[vpp.git] / src / vnet / tcp / tcp.c

diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index 3277033..bfab1d6 100644 (file)
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -73,7 +73,6 @@ tcp_add_del_adjacency (tcp_connection_t * tc, u8 is_add)
 static void
 tcp_cc_init (tcp_connection_t * tc)
 {
-  tc->cc_algo = tcp_cc_algo_get (tcp_cfg.cc_algo);
   tc->cc_algo->init (tc);
 }
 
@@ -136,10 +135,11 @@ tcp_connection_bind (u32 session_index, transport_endpoint_t * lcl)
   listener->c_s_index = session_index;
   listener->c_fib_index = lcl->fib_index;
   listener->state = TCP_STATE_LISTEN;
+  listener->cc_algo = tcp_cc_algo_get (tcp_cfg.cc_algo);
 
   tcp_connection_timers_init (listener);
 
-  TCP_EVT_DBG (TCP_EVT_BIND, listener);
+  TCP_EVT (TCP_EVT_BIND, listener);
 
   return listener->c_c_index;
 }
@@ -158,7 +158,7 @@ tcp_connection_unbind (u32 listener_index)
 
   tc = pool_elt_at_index (tm->listener_pool, listener_index);
 
-  TCP_EVT_DBG (TCP_EVT_UNBIND, tc);
+  TCP_EVT (TCP_EVT_UNBIND, tc);
 
   /* Poison the entry */
   if (CLIB_DEBUG > 0)
@@ -240,7 +240,7 @@ tcp_connection_cleanup (tcp_connection_t * tc)
 {
   tcp_main_t *tm = &tcp_main;
 
-  TCP_EVT_DBG (TCP_EVT_DELETE, tc);
+  TCP_EVT (TCP_EVT_DELETE, tc);
 
   /* Cleanup local endpoint if this was an active connect */
   transport_endpoint_cleanup (TRANSPORT_PROTO_TCP, &tc->c_lcl_ip,
@@ -306,6 +306,19 @@ tcp_connection_alloc (u8 thread_index)
   return tc;
 }
 
+tcp_connection_t *
+tcp_connection_alloc_w_base (u8 thread_index, tcp_connection_t * base)
+{
+  tcp_main_t *tm = vnet_get_tcp_main ();
+  tcp_connection_t *tc;
+
+  pool_get (tm->connections[thread_index], tc);
+  clib_memcpy_fast (tc, base, sizeof (*tc));
+  tc->c_c_index = tc - tm->connections[thread_index];
+  tc->c_thread_index = thread_index;
+  return tc;
+}
+
 void
 tcp_connection_free (tcp_connection_t * tc)
 {
@@ -327,7 +340,7 @@ tcp_connection_free (tcp_connection_t * tc)
 void
 tcp_connection_reset (tcp_connection_t * tc)
 {
-  TCP_EVT_DBG (TCP_EVT_RST_RCVD, tc);
+  TCP_EVT (TCP_EVT_RST_RCVD, tc);
   switch (tc->state)
     {
     case TCP_STATE_SYN_RCVD:
@@ -384,7 +397,7 @@ tcp_connection_reset (tcp_connection_t * tc)
 void
 tcp_connection_close (tcp_connection_t * tc)
 {
-  TCP_EVT_DBG (TCP_EVT_CLOSE, tc);
+  TCP_EVT (TCP_EVT_CLOSE, tc);
 
   /* Send/Program FIN if needed and switch state */
   switch (tc->state)
@@ -464,6 +477,18 @@ tcp_session_cleanup (u32 conn_index, u32 thread_index)
   tcp_connection_cleanup (tc);
 }
 
+static void
+tcp_session_reset (u32 conn_index, u32 thread_index)
+{
+  tcp_connection_t *tc;
+  tc = tcp_connection_get (conn_index, thread_index);
+  session_transport_closed_notify (&tc->connection);
+  tcp_send_reset (tc);
+  tcp_connection_timers_reset (tc);
+  tcp_connection_set_state (tc, TCP_STATE_CLOSED);
+  tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
+}
+
 /**
  * Initialize all connection timers as invalid
  */
@@ -738,10 +763,11 @@ tcp_session_open (transport_endpoint_cfg_t * rmt)
   tc->c_is_ip4 = rmt->is_ip4;
   tc->c_proto = TRANSPORT_PROTO_TCP;
   tc->c_fib_index = rmt->fib_index;
+  tc->cc_algo = tcp_cc_algo_get (tcp_cfg.cc_algo);
   /* The other connection vars will be initialized after SYN ACK */
   tcp_connection_timers_init (tc);
 
-  TCP_EVT_DBG (TCP_EVT_OPEN, tc);
+  TCP_EVT (TCP_EVT_OPEN, tc);
   tc->state = TCP_STATE_SYN_SENT;
   tcp_init_snd_vars (tc);
   tcp_send_syn (tc);
@@ -750,12 +776,6 @@ tcp_session_open (transport_endpoint_cfg_t * rmt)
   return tc->c_c_index;
 }
 
-const char *tcp_dbg_evt_str[] = {
-#define _(sym, str) str,
-  foreach_tcp_dbg_evt
-#undef _
-};
-
 const char *tcp_fsm_states[] = {
 #define _(sym, str) str,
   foreach_tcp_fsm_state
@@ -1244,6 +1264,7 @@ const static transport_proto_vft_t tcp_proto = {
   .connect = tcp_session_open,
   .close = tcp_session_close,
   .cleanup = tcp_session_cleanup,
+  .reset = tcp_session_reset,
   .send_mss = tcp_session_send_mss,
   .send_space = tcp_session_send_space,
   .update_time = tcp_update_time,
@@ -1263,17 +1284,11 @@ const static transport_proto_vft_t tcp_proto = {
 void
 tcp_connection_tx_pacer_update (tcp_connection_t * tc)
 {
-  f64 srtt;
-  u64 rate;
-
   if (!transport_connection_is_tx_paced (&tc->connection))
     return;
 
-  srtt = clib_min ((f64) tc->srtt * TCP_TICK, tc->mrtt_us);
-  /* TODO should constrain to interface's max throughput but
-   * we don't have link speeds for sw ifs ..*/
-  rate = tc->cwnd / srtt;
-  transport_connection_tx_pacer_update (&tc->connection, rate);
+  transport_connection_tx_pacer_update (&tc->connection,
+                                       tcp_cc_get_pacing_rate (tc));
 }
 
 void
@@ -1380,7 +1395,7 @@ tcp_expired_timers_dispatch (u32 * expired_timers)
       connection_index = expired_timers[i] & 0x0FFFFFFF;
       timer_id = expired_timers[i] >> 28;
 
-      TCP_EVT_DBG (TCP_EVT_TIMER_POP, connection_index, timer_id);
+      TCP_EVT (TCP_EVT_TIMER_POP, connection_index, timer_id);
 
       /* Handle expiration */
       (*timer_expiration_handlers[timer_id]) (connection_index);