X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ftcp%2Ftcp.c;h=f703d634b5418d2678c821217cc7a7acd2c170a3;hb=311e11b179f1b4a8f8d3fb1ecce5919a3f146de8;hp=a466e3c935c6d9ae3adfe8902e4ec805a549de92;hpb=9ece3c03133309dda1f7f7f292bd071fa1ccb0f1;p=vpp.git

diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index a466e3c935c..f703d634b54 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -296,6 +296,7 @@ tcp_connection_reset (tcp_connection_t * tc)
     case TCP_STATE_CLOSED:
       return;
     }
+  tc->state = TCP_STATE_CLOSED;
 }
 
 /**
@@ -349,6 +350,9 @@ tcp_connection_close (tcp_connection_t * tc)
     case TCP_STATE_FIN_WAIT_1:
       tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
       break;
+    case TCP_STATE_CLOSED:
+      tcp_connection_timers_reset (tc);
+      break;
     default:
       TCP_DBG ("state: %u", tc->state);
     }
@@ -448,10 +452,10 @@ tcp_connection_select_lb_bucket (tcp_connection_t * tc, const dpo_id_t * dpo,
       ip6_tcp_hdr_t hdr;
       clib_memset (&hdr, 0, sizeof (hdr));
       hdr.ip.protocol = IP_PROTOCOL_TCP;
-      clib_memcpy (&hdr.ip.src_address, &tc->c_lcl_ip.ip6,
-		   sizeof (ip6_address_t));
-      clib_memcpy (&hdr.ip.dst_address, &tc->c_rmt_ip.ip6,
-		   sizeof (ip6_address_t));
+      clib_memcpy_fast (&hdr.ip.src_address, &tc->c_lcl_ip.ip6,
+			sizeof (ip6_address_t));
+      clib_memcpy_fast (&hdr.ip.dst_address, &tc->c_rmt_ip.ip6,
+			sizeof (ip6_address_t));
       hdr.tcp.src_port = tc->c_lcl_port;
       hdr.tcp.dst_port = tc->c_rmt_port;
       hash = ip6_compute_flow_hash (&hdr.ip, lb->lb_hash_config);
@@ -466,7 +470,7 @@ tcp_lookup_rmt_in_fib (tcp_connection_t * tc)
   fib_prefix_t prefix;
   u32 fib_index;
 
-  clib_memcpy (&prefix.fp_addr, &tc->c_rmt_ip, sizeof (prefix.fp_addr));
+  clib_memcpy_fast (&prefix.fp_addr, &tc->c_rmt_ip, sizeof (prefix.fp_addr));
   prefix.fp_proto = tc->c_is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
   prefix.fp_len = tc->c_is_ip4 ? 32 : 128;
   fib_index = fib_table_find (prefix.fp_proto, tc->c_fib_index);
@@ -510,7 +514,7 @@ tcp_connection_fib_attach (tcp_connection_t * tc)
 static void
 tcp_cc_init (tcp_connection_t * tc)
 {
-  tc->cc_algo = tcp_cc_algo_get (TCP_CC_NEWRENO);
+  tc->cc_algo = tcp_cc_algo_get (tcp_main.cc_algo);
   tc->cc_algo->init (tc);
 }
 
@@ -553,6 +557,7 @@ tcp_init_snd_vars (tcp_connection_t * tc)
   tc->snd_una = tc->iss;
   tc->snd_nxt = tc->iss + 1;
   tc->snd_una_max = tc->snd_nxt;
+  tc->srtt = 0;
 }
 
 void
@@ -607,8 +612,8 @@ tcp_alloc_custom_local_endpoint (tcp_main_t * tm, ip46_address_t * lcl_addr,
       index = tm->last_v6_address_rotor++;
       if (tm->last_v6_address_rotor >= vec_len (tm->ip6_src_addresses))
 	tm->last_v6_address_rotor = 0;
-      clib_memcpy (&lcl_addr->ip6, &tm->ip6_src_addresses[index],
-		   sizeof (ip6_address_t));
+      clib_memcpy_fast (&lcl_addr->ip6, &tm->ip6_src_addresses[index],
+			sizeof (ip6_address_t));
     }
   port = transport_alloc_local_port (TRANSPORT_PROTO_TCP, lcl_addr);
   if (port < 1)
@@ -802,9 +807,10 @@ format_tcp_vars (u8 * s, va_list * args)
 	      tcp_rcv_wnd_available (tc));
   s = format (s, " tsval_recent %u tsval_recent_age %u\n", tc->tsval_recent,
 	      tcp_time_now () - tc->tsval_recent_age);
-  s = format (s, " rto %u rto_boff %u srtt %u rttvar %u rtt_ts %2.5f ",
-	      tc->rto, tc->rto_boff, tc->srtt, tc->rttvar, tc->rtt_ts);
-  s = format (s, "rtt_seq %u\n", tc->rtt_seq - tc->iss);
+  s = format (s, " rto %u rto_boff %u srtt %u us %.3f rttvar %u rtt_ts %x",
+	      tc->rto, tc->rto_boff, tc->srtt, tc->mrtt_us * 1000, tc->rttvar,
+	      tc->rtt_ts);
+  s = format (s, " rtt_seq %u\n", tc->rtt_seq - tc->iss);
   s = format (s, " cong:   %U", format_tcp_congestion, tc);
 
   if (tc->state >= TCP_STATE_ESTABLISHED)
@@ -1051,7 +1057,8 @@ tcp_snd_space_inline (tcp_connection_t * tc)
 {
   int snd_space, snt_limited;
 
-  if (PREDICT_FALSE (tcp_in_fastrecovery (tc)))
+  if (PREDICT_FALSE (tcp_in_fastrecovery (tc)
+		     || tc->state == TCP_STATE_CLOSED))
     return 0;
 
   snd_space = tcp_available_output_snd_space (tc);
@@ -1105,6 +1112,7 @@ tcp_update_time (f64 now, u8 thread_index)
   tcp_set_time_now (wrk);
   tw_timer_expire_timers_16t_2w_512sl (&wrk->timer_wheel, now);
   tcp_do_fastretransmits (wrk);
+  tcp_send_acks (wrk);
   tcp_flush_frames_to_output (wrk);
 }
 
@@ -1143,13 +1151,16 @@ 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);
-  transport_connection_tx_pacer_update (&tc->connection,
-					((f64) tc->cwnd) / srtt);
+  /* 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);
 }
 
 void
@@ -1326,10 +1337,14 @@ tcp_main_enable (vlib_main_t * vm)
       vec_validate (tm->wrk_ctx[thread].ongoing_fast_rxt, 255);
       vec_validate (tm->wrk_ctx[thread].postponed_fast_rxt, 255);
       vec_validate (tm->wrk_ctx[thread].pending_deq_acked, 255);
+      vec_validate (tm->wrk_ctx[thread].pending_acks, 255);
+      vec_validate (tm->wrk_ctx[thread].pending_disconnects, 255);
       vec_reset_length (tm->wrk_ctx[thread].pending_fast_rxt);
       vec_reset_length (tm->wrk_ctx[thread].ongoing_fast_rxt);
       vec_reset_length (tm->wrk_ctx[thread].postponed_fast_rxt);
       vec_reset_length (tm->wrk_ctx[thread].pending_deq_acked);
+      vec_reset_length (tm->wrk_ctx[thread].pending_acks);
+      vec_reset_length (tm->wrk_ctx[thread].pending_disconnects);
       tm->wrk_ctx[thread].vm = vlib_mains[thread];
 
       /*
@@ -1417,11 +1432,51 @@ tcp_init (vlib_main_t * vm)
 			       FIB_PROTOCOL_IP6, tcp6_output_node.index);
 
   tcp_api_reference ();
+  tm->tx_pacing = 1;
+  tm->cc_algo = TCP_CC_NEWRENO;
   return 0;
 }
 
 VLIB_INIT_FUNCTION (tcp_init);
 
+uword
+unformat_tcp_cc_algo (unformat_input_t * input, va_list * va)
+{
+  uword *result = va_arg (*va, uword *);
+
+  if (unformat (input, "newreno"))
+    *result = TCP_CC_NEWRENO;
+  else if (unformat (input, "cubic"))
+    *result = TCP_CC_CUBIC;
+  else
+    return 0;
+
+  return 1;
+}
+
+uword
+unformat_tcp_cc_algo_cfg (unformat_input_t * input, va_list * va)
+{
+  tcp_main_t *tm = vnet_get_tcp_main ();
+  tcp_cc_algorithm_t *cc_alg;
+  unformat_input_t sub_input;
+  int found = 0;
+
+  vec_foreach (cc_alg, tm->cc_algos)
+  {
+    if (!unformat (input, cc_alg->name))
+      continue;
+
+    if (cc_alg->unformat_cfg
+	&& unformat (input, "%U", unformat_vlib_cli_sub_input, &sub_input))
+      {
+	if (cc_alg->unformat_cfg (&sub_input))
+	  found = 1;
+      }
+  }
+  return found;
+}
+
 static clib_error_t *
 tcp_config_fn (vlib_main_t * vm, unformat_input_t * input)
 {
@@ -1441,8 +1496,13 @@ tcp_config_fn (vlib_main_t * vm, unformat_input_t * input)
       else if (unformat (input, "max-rx-fifo %U", unformat_memory_size,
 			 &tm->max_rx_fifo))
 	;
-      else if (unformat (input, "tx-pacing"))
-	tm->tx_pacing = 1;
+      else if (unformat (input, "no-tx-pacing"))
+	tm->tx_pacing = 0;
+      else if (unformat (input, "cc-algo %U", unformat_tcp_cc_algo,
+			 &tm->cc_algo))
+	;
+      else if (unformat (input, "%U", unformat_tcp_cc_algo_cfg))
+	;
       else
 	return clib_error_return (0, "unknown input `%U'",
 				  format_unformat_error, input);