X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fsession%2Ftransport.c;h=8f7e30c86025a5f30c4be27aae565dc348de263f;hb=c31dc31f84961033ecb6354811e0c360b6cf5f79;hp=ddeb6d4b62189d71aed5074ea0428fec7ebd0618;hpb=31c9955a4e83578422b3328ef0d7b2b248536644;p=vpp.git

diff --git a/src/vnet/session/transport.c b/src/vnet/session/transport.c
index ddeb6d4b621..8f7e30c8602 100644
--- a/src/vnet/session/transport.c
+++ b/src/vnet/session/transport.c
@@ -47,26 +47,20 @@ static clib_spinlock_t local_endpoints_lock;
  */
 static double transport_pacer_period;
 
-#define TRANSPORT_PACER_MIN_MSS 	1460
-#define TRANSPORT_PACER_MIN_BURST 	TRANSPORT_PACER_MIN_MSS
-
 u8 *
 format_transport_proto (u8 * s, va_list * args)
 {
   u32 transport_proto = va_arg (*args, u32);
   switch (transport_proto)
     {
-    case TRANSPORT_PROTO_TCP:
-      s = format (s, "TCP");
-      break;
-    case TRANSPORT_PROTO_UDP:
-      s = format (s, "UDP");
+#define _(sym, str, sstr) 			\
+    case TRANSPORT_PROTO_ ## sym:		\
+      s = format (s, str);			\
       break;
-    case TRANSPORT_PROTO_SCTP:
-      s = format (s, "SCTP");
-      break;
-    case TRANSPORT_PROTO_UDPC:
-      s = format (s, "UDPC");
+      foreach_transport_proto
+#undef _
+    default:
+      s = format (s, "UNKNOWN");
       break;
     }
   return s;
@@ -78,17 +72,14 @@ format_transport_proto_short (u8 * s, va_list * args)
   u32 transport_proto = va_arg (*args, u32);
   switch (transport_proto)
     {
-    case TRANSPORT_PROTO_TCP:
-      s = format (s, "T");
-      break;
-    case TRANSPORT_PROTO_UDP:
-      s = format (s, "U");
+#define _(sym, str, sstr) 			\
+    case TRANSPORT_PROTO_ ## sym:		\
+      s = format (s, sstr);			\
       break;
-    case TRANSPORT_PROTO_SCTP:
-      s = format (s, "S");
-      break;
-    case TRANSPORT_PROTO_UDPC:
-      s = format (s, "U");
+      foreach_transport_proto
+#undef _
+    default:
+      s = format (s, "?");
       break;
     }
   return s;
@@ -154,29 +145,16 @@ uword
 unformat_transport_proto (unformat_input_t * input, va_list * args)
 {
   u32 *proto = va_arg (*args, u32 *);
-  if (unformat (input, "tcp"))
-    *proto = TRANSPORT_PROTO_TCP;
-  else if (unformat (input, "TCP"))
-    *proto = TRANSPORT_PROTO_TCP;
-  else if (unformat (input, "udp"))
-    *proto = TRANSPORT_PROTO_UDP;
-  else if (unformat (input, "UDP"))
-    *proto = TRANSPORT_PROTO_UDP;
-  else if (unformat (input, "sctp"))
-    *proto = TRANSPORT_PROTO_SCTP;
-  else if (unformat (input, "SCTP"))
-    *proto = TRANSPORT_PROTO_SCTP;
-  else if (unformat (input, "tls"))
-    *proto = TRANSPORT_PROTO_TLS;
-  else if (unformat (input, "TLS"))
-    *proto = TRANSPORT_PROTO_TLS;
-  else if (unformat (input, "udpc"))
-    *proto = TRANSPORT_PROTO_UDPC;
-  else if (unformat (input, "UDPC"))
-    *proto = TRANSPORT_PROTO_UDPC;
-  else
+
+#define _(sym, str, sstr)						\
+  if (unformat (input, str))						\
+    {									\
+      *proto = TRANSPORT_PROTO_ ## sym;					\
+      return 1;								\
+    }
+  foreach_transport_proto
+#undef _
     return 0;
-  return 1;
 }
 
 u32
@@ -259,16 +237,22 @@ transport_protocol_get_vft (transport_proto_t transport_proto)
   return &tp_vfts[transport_proto];
 }
 
+u8
+transport_half_open_has_fifos (transport_proto_t tp)
+{
+  return tp_vfts[tp].transport_options.half_open_has_fifos;
+}
+
 transport_service_type_t
 transport_protocol_service_type (transport_proto_t tp)
 {
-  return tp_vfts[tp].service_type;
+  return tp_vfts[tp].transport_options.service_type;
 }
 
 transport_tx_fn_type_t
 transport_protocol_tx_fn_type (transport_proto_t tp)
 {
-  return tp_vfts[tp].tx_type;
+  return tp_vfts[tp].transport_options.tx_type;
 }
 
 void
@@ -289,6 +273,15 @@ transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
   tp_vfts[tp].close (conn_index, thread_index);
 }
 
+void
+transport_reset (transport_proto_t tp, u32 conn_index, u8 thread_index)
+{
+  if (tp_vfts[tp].reset)
+    tp_vfts[tp].reset (conn_index, thread_index);
+  else
+    tp_vfts[tp].close (conn_index, thread_index);
+}
+
 u32
 transport_start_listen (transport_proto_t tp, u32 session_index,
 			transport_endpoint_t * tep)
@@ -305,7 +298,55 @@ transport_stop_listen (transport_proto_t tp, u32 conn_index)
 u8
 transport_protocol_is_cl (transport_proto_t tp)
 {
-  return (tp_vfts[tp].service_type == TRANSPORT_SERVICE_CL);
+  return (tp_vfts[tp].transport_options.service_type == TRANSPORT_SERVICE_CL);
+}
+
+always_inline void
+default_get_transport_endpoint (transport_connection_t * tc,
+				transport_endpoint_t * tep, u8 is_lcl)
+{
+  if (is_lcl)
+    {
+      tep->port = tc->lcl_port;
+      tep->is_ip4 = tc->is_ip4;
+      clib_memcpy_fast (&tep->ip, &tc->lcl_ip, sizeof (tc->lcl_ip));
+    }
+  else
+    {
+      tep->port = tc->rmt_port;
+      tep->is_ip4 = tc->is_ip4;
+      clib_memcpy_fast (&tep->ip, &tc->rmt_ip, sizeof (tc->rmt_ip));
+    }
+}
+
+void
+transport_get_endpoint (transport_proto_t tp, u32 conn_index,
+			u32 thread_index, transport_endpoint_t * tep,
+			u8 is_lcl)
+{
+  if (tp_vfts[tp].get_transport_endpoint)
+    tp_vfts[tp].get_transport_endpoint (conn_index, thread_index, tep,
+					is_lcl);
+  else
+    {
+      transport_connection_t *tc;
+      tc = transport_get_connection (tp, conn_index, thread_index);
+      default_get_transport_endpoint (tc, tep, is_lcl);
+    }
+}
+
+void
+transport_get_listener_endpoint (transport_proto_t tp, u32 conn_index,
+				 transport_endpoint_t * tep, u8 is_lcl)
+{
+  if (tp_vfts[tp].get_transport_listener_endpoint)
+    tp_vfts[tp].get_transport_listener_endpoint (conn_index, tep, is_lcl);
+  else
+    {
+      transport_connection_t *tc;
+      tc = transport_get_listener (tp, conn_index);
+      default_get_transport_endpoint (tc, tep, is_lcl);
+    }
 }
 
 #define PORT_MASK ((1 << 16)- 1)
@@ -521,10 +562,14 @@ u8 *
 format_transport_pacer (u8 * s, va_list * args)
 {
   spacer_t *pacer = va_arg (*args, spacer_t *);
+  vlib_main_t *vm = vlib_get_main ();
+  u64 now, diff;
 
-  s = format (s, "bucket %u max_burst %u tokens/period %.3f last_update %x",
-	      pacer->bucket, pacer->max_burst_size, pacer->tokens_per_period,
-	      pacer->last_update);
+  now = vm->clib_time.last_cpu_time;
+  diff = now - (pacer->last_update << SPACER_CPU_TICKS_PER_PERIOD_SHIFT);
+  s = format (s, "rate %u bucket %u t/p %.3f last_update %.3f",
+	      pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period,
+	      diff * vm->clib_time.seconds_per_clock);
   return s;
 }
 
@@ -534,13 +579,21 @@ spacer_max_burst (spacer_t * pacer, u64 norm_time_now)
   u64 n_periods = norm_time_now - pacer->last_update;
   u64 inc;
 
-  if (n_periods > 0 && (inc = n_periods * pacer->tokens_per_period) > 10)
+  if (PREDICT_FALSE (n_periods > 5e5))
     {
       pacer->last_update = norm_time_now;
-      pacer->bucket += inc;
+      pacer->bucket = TRANSPORT_PACER_MIN_BURST;
+      return TRANSPORT_PACER_MIN_BURST;
     }
 
-  return clib_min (pacer->bucket, pacer->max_burst_size);
+  if (n_periods > 0
+      && (inc = (f32) n_periods * pacer->tokens_per_period) > 10)
+    {
+      pacer->last_update = norm_time_now;
+      pacer->bucket = clib_min (pacer->bucket + inc, pacer->bytes_per_sec);
+    }
+
+  return clib_min (pacer->bucket, TRANSPORT_PACER_MAX_BURST);
 }
 
 static inline void
@@ -551,17 +604,24 @@ spacer_update_bucket (spacer_t * pacer, u32 bytes)
 }
 
 static inline void
-spacer_update_max_burst_size (spacer_t * pacer, u32 max_burst_bytes)
+spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec)
 {
-  pacer->max_burst_size = clib_max (max_burst_bytes,
-				    TRANSPORT_PACER_MIN_BURST);
+  ASSERT (rate_bytes_per_sec != 0);
+  pacer->bytes_per_sec = rate_bytes_per_sec;
+  pacer->tokens_per_period = rate_bytes_per_sec / transport_pacer_period;
+}
+
+static inline u64
+spacer_pace_rate (spacer_t * pacer)
+{
+  return pacer->bytes_per_sec;
 }
 
 static inline void
-spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec)
+spacer_reset_bucket (spacer_t * pacer, u64 norm_time_now)
 {
-  ASSERT (rate_bytes_per_sec != 0);
-  pacer->tokens_per_period = rate_bytes_per_sec / transport_pacer_period;
+  pacer->last_update = norm_time_now;
+  pacer->bucket = 0;
 }
 
 void
@@ -570,12 +630,6 @@ transport_connection_tx_pacer_reset (transport_connection_t * tc,
 				     u32 start_bucket, u64 time_now)
 {
   spacer_t *pacer = &tc->pacer;
-  f64 dispatch_period;
-  u32 burst_size;
-
-  dispatch_period = transport_dispatch_period (tc->thread_index);
-  burst_size = rate_bytes_per_sec * dispatch_period;
-  spacer_update_max_burst_size (&tc->pacer, burst_size);
   spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec);
   pacer->last_update = time_now >> SPACER_CPU_TICKS_PER_PERIOD_SHIFT;
   pacer->bucket = start_bucket;
@@ -597,10 +651,7 @@ void
 transport_connection_tx_pacer_update (transport_connection_t * tc,
 				      u64 bytes_per_sec)
 {
-  f64 dispatch_period = transport_dispatch_period (tc->thread_index);
-  u32 burst_size = 1.1 * bytes_per_sec * dispatch_period;
   spacer_set_pace_rate (&tc->pacer, bytes_per_sec);
-  spacer_update_max_burst_size (&tc->pacer, burst_size);
 }
 
 u32
@@ -611,6 +662,14 @@ transport_connection_tx_pacer_burst (transport_connection_t * tc,
   return spacer_max_burst (&tc->pacer, time_now);
 }
 
+void
+transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc,
+					    u64 time_now)
+{
+  time_now >>= SPACER_CPU_TICKS_PER_PERIOD_SHIFT;
+  spacer_reset_bucket (&tc->pacer, time_now);
+}
+
 u32
 transport_connection_snd_space (transport_connection_t * tc, u64 time_now,
 				u16 mss)
@@ -618,21 +677,27 @@ transport_connection_snd_space (transport_connection_t * tc, u64 time_now,
   u32 snd_space, max_paced_burst;
 
   snd_space = tp_vfts[tc->proto].send_space (tc);
-  if (transport_connection_is_tx_paced (tc))
+  if (snd_space && transport_connection_is_tx_paced (tc))
     {
       time_now >>= SPACER_CPU_TICKS_PER_PERIOD_SHIFT;
       max_paced_burst = spacer_max_burst (&tc->pacer, time_now);
-      max_paced_burst = (max_paced_burst < mss) ? 0 : max_paced_burst;
+      max_paced_burst =
+	(max_paced_burst < TRANSPORT_PACER_MIN_BURST) ? 0 : max_paced_burst;
       snd_space = clib_min (snd_space, max_paced_burst);
-      snd_space = snd_space - snd_space % mss;
+      return snd_space >= mss ? snd_space - snd_space % mss : snd_space;
     }
   return snd_space;
 }
 
+u64
+transport_connection_tx_pacer_rate (transport_connection_t * tc)
+{
+  return spacer_pace_rate (&tc->pacer);
+}
+
 void
-transport_connection_update_tx_stats (transport_connection_t * tc, u32 bytes)
+transport_connection_update_tx_bytes (transport_connection_t * tc, u32 bytes)
 {
-  tc->stats.tx_bytes += bytes;
   if (transport_connection_is_tx_paced (tc))
     spacer_update_bucket (&tc->pacer, bytes);
 }