Initial commit of vpp code.v1.0.0

Change-Id: Ib246f1fbfce93274020ee93ce461e3d8bd8b9f17
Signed-off-by: Ed Warnicke <eaw@cisco.com>

1 files changed, 370 insertions, 0 deletions

diff --git a/vlib/example/mc_test.c b/vlib/example/mc_test.c
new file mode 100644
index 00000000000..2a7fe9867fe
--- /dev/null
+++ b/vlib/example/mc_test.c
@@ -0,0 +1,370 @@
+/*
+ * mc_test.c: test program for vlib mc
+ *
+ * Copyright (c) 2010 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vlib/vlib.h>
+#include <vlib/unix/mc_socket.h>
+#include <vppinfra/random.h>
+
+typedef struct {
+  u32 min_n_msg_bytes;
+  u32 max_n_msg_bytes;
+  u32 tx_serial;
+  u32 rx_serial;
+  u32 seed;
+  u32 verbose;
+  u32 validate;
+  u32 window_size;
+  f64 min_delay, max_delay;
+  f64 n_packets_to_send;
+} mc_test_main_t;
+
+always_inline u32
+choose_msg_size (mc_test_main_t * tm)
+{
+  u32 r = tm->min_n_msg_bytes;
+  if (tm->max_n_msg_bytes > tm->min_n_msg_bytes)
+    r += random_u32 (&tm->seed) % (1 + tm->max_n_msg_bytes - tm->min_n_msg_bytes);
+  return r;
+}
+
+static mc_test_main_t mc_test_main;
+
+static void serialize_test_msg (serialize_main_t * m, va_list * va)
+{
+  mc_test_main_t * tm = &mc_test_main;
+  u32 n_bytes = choose_msg_size (tm);
+  u8 * msg;
+  int i;
+  serialize_integer (m, n_bytes, sizeof (n_bytes));
+  msg = serialize_get (m, n_bytes);
+  for (i = 0; i < n_bytes; i++)
+    msg[i] = i + tm->tx_serial;
+  tm->tx_serial += n_bytes;
+}
+
+static void unserialize_test_msg (serialize_main_t * m, va_list * va)
+{
+  mc_test_main_t * tm = &mc_test_main;
+  u32 i, n_bytes, dump_msg = tm->verbose;
+  u8 * p;
+  unserialize_integer (m, &n_bytes, sizeof (n_bytes));
+  p = unserialize_get (m, n_bytes);
+  if (tm->validate)
+    for (i = 0; i < n_bytes; i++)
+      if (p[i] != ((tm->rx_serial + i) & 0xff))
+	{
+	  clib_warning ("corrupt msg at offset %d", i);
+	  dump_msg = 1;
+	  break;
+	}
+  if (dump_msg)
+    clib_warning ("got %d bytes, %U", n_bytes, format_hex_bytes, p, n_bytes);
+  tm->rx_serial += n_bytes;
+}
+
+MC_SERIALIZE_MSG (test_msg, static) = {
+  .name = "test_msg",
+  .serialize = serialize_test_msg,
+  .unserialize = unserialize_test_msg,
+};
+
+#define SERIALIZE 1
+
+#define EVENT_JOIN_STREAM 	10
+#define EVENT_SEND_DATA 	11
+
+static void test_rx_callback (mc_main_t * mcm,
+			      mc_stream_t * stream,
+			      mc_peer_id_t peer_id,
+			      u32 buffer_index)
+{
+  if (SERIALIZE)
+    {
+        return mc_unserialize (mcm, stream, buffer_index);
+    }
+  else
+    {
+#if DEBUG > 1
+      vlib_main_t * vm = mcm->vlib_main;
+      vlib_buffer_t * b = vlib_get_buffer (vm, buffer_index);
+      u8 * dp = vlib_buffer_get_current (b);
+
+      fformat(stdout, "RX from %U %U\n",
+	      stream->transport->format_peer_id, peer_id,
+	      format_hex_bytes, dp, tm->n_msg_bytes);
+            
+#endif
+    }
+}
+
+static u8 *
+test_snapshot_callback (mc_main_t * mcm,
+			u8 * data_vector,
+			u32 last_global_sequence_processed)
+{
+  if (SERIALIZE)
+    {
+      serialize_main_t m;
+
+      /* Append serialized data to data vector. */
+      serialize_open_vector (&m, data_vector);
+      m.stream.current_buffer_index = vec_len (data_vector);
+
+      return serialize_close_vector (&m);
+    }
+  else
+    return format (data_vector,
+		   "snapshot, last global seq 0x%x",
+		   last_global_sequence_processed);
+}
+
+static void
+test_handle_snapshot_callback (mc_main_t * mcm,
+			       u8 * data,
+			       u32 n_data_bytes)
+{
+  if (SERIALIZE)
+    {
+      serialize_main_t s;
+      unserialize_open_data (&s, data, n_data_bytes);
+    }
+  else
+    clib_warning ("snapshot `%*s'", n_data_bytes, data);
+}
+
+static mc_socket_main_t mc_socket_main;
+
+static uword
+mc_test_process (vlib_main_t * vm,
+		 vlib_node_runtime_t * node,
+		 vlib_frame_t * f)
+{
+  mc_test_main_t * tm = &mc_test_main;
+  mc_socket_main_t * msm = &mc_socket_main;
+  mc_main_t *mcm = &msm->mc_main;
+  uword event_type, *event_data = 0;
+  u32 data_serial=0, stream_index;
+  f64 delay;
+  mc_stream_config_t config;
+  clib_error_t * error;
+  int i;
+  char *intfcs[] =  { "eth1", "eth0", "ce" };
+
+  memset (&config, 0, sizeof (config));
+  config.name = "test";
+  config.window_size = tm->window_size;
+  config.rx_buffer = test_rx_callback;
+  config.catchup_snapshot = test_snapshot_callback;
+  config.catchup = test_handle_snapshot_callback;
+  stream_index = ~0;
+
+  msm->multicast_tx_ip4_address_host_byte_order = 0xefff0100;
+  msm->base_multicast_udp_port_host_byte_order = 0xffab;
+
+  error = mc_socket_main_init (&mc_socket_main, intfcs, ARRAY_LEN(intfcs));
+  if (error)
+    {
+      clib_error_report (error);
+      exit (1);
+    }
+
+  mcm->we_can_be_relay_master = 1;
+
+  while (1)
+    {
+      vlib_process_wait_for_event (vm);
+      event_type = vlib_process_get_events (vm, &event_data);
+
+      switch (event_type)
+	{
+	case EVENT_JOIN_STREAM:
+	  stream_index = mc_stream_join (mcm, &config);
+	  break;
+
+	case EVENT_SEND_DATA: {
+          f64 times[2];
+
+          if (stream_index == ~0)
+	    stream_index = mc_stream_join (mcm, &config);
+
+          times[0] = vlib_time_now (vm);
+	  for (i = 0; i < event_data[0]; i++)
+	    {
+	      u32 bi;
+	      if (SERIALIZE)
+		{
+		  mc_serialize_stream (mcm, stream_index, &test_msg, data_serial);
+		}
+	      else
+		{
+		  u8 * mp;
+		  mp = mc_get_vlib_buffer (vm, sizeof (mp[0]), &bi);
+		  mp[0] = data_serial;
+		  mc_stream_send (mcm, stream_index, bi);
+		}
+	      if (tm->min_delay > 0)
+		{
+		  delay = tm->min_delay + random_f64 (&tm->seed) * (tm->max_delay - tm->min_delay);
+		  vlib_process_suspend (vm, delay);
+		}
+	      data_serial++;
+	    }
+          times[1] = vlib_time_now (vm);
+          clib_warning ("done sending %d; %.4e per sec",
+                        event_data[0],
+                        (f64) event_data[0] / (times[1] - times[0]));
+	  break;
+        }
+
+	default:
+	  clib_warning ("bug");
+	  break;
+	}
+            
+      if (event_data)
+	_vec_len (event_data) = 0;
+    }
+}
+
+VLIB_REGISTER_NODE (mc_test_process_node,static) = {
+  .function = mc_test_process,
+  .type = VLIB_NODE_TYPE_PROCESS,
+  .name = "mc-test-process",
+};
+
+static clib_error_t *
+mc_test_command (vlib_main_t * vm,
+		 unformat_input_t * input,
+		 vlib_cli_command_t * cmd)
+{
+  f64 npkts = 10;
+
+  if (unformat (input, "join"))
+    {
+      vlib_cli_output (vm, "Join stream...\n");
+      vlib_process_signal_event (vm, mc_test_process_node.index,
+				 EVENT_JOIN_STREAM, 0);
+      return 0;
+    }
+  else if (unformat (input, "send %f", &npkts) 
+	   || unformat(input, "send"))
+    {
+      vlib_process_signal_event (vm, mc_test_process_node.index,
+				 EVENT_SEND_DATA, (uword) npkts);
+      vlib_cli_output (vm, "Send %.0f pkts...\n", npkts);
+    
+      return 0;
+    }
+  else
+    return unformat_parse_error (input);
+}
+
+VLIB_CLI_COMMAND (test_mc_command, static) = {
+  .path = "test mc",
+  .short_help = "Test mc command",
+  .function = mc_test_command,
+};
+
+static clib_error_t *
+mc_show_command (vlib_main_t * vm,
+		 unformat_input_t * input,
+		 vlib_cli_command_t * cmd)
+{
+  mc_main_t *mcm = &mc_socket_main.mc_main;
+  vlib_cli_output (vm, "%U", format_mc_main, mcm);
+  return 0;
+}
+
+VLIB_CLI_COMMAND (show_mc_command, static) = {
+  .path = "show mc",
+  .short_help = "Show mc command",
+  .function = mc_show_command,
+};
+
+static clib_error_t *
+mc_clear_command (vlib_main_t * vm,
+		  unformat_input_t * input,
+		  vlib_cli_command_t * cmd)
+{
+  mc_main_t * mcm = &mc_socket_main.mc_main;
+  mc_clear_stream_stats (mcm);
+  return 0;
+}
+
+VLIB_CLI_COMMAND (clear_mc_command, static) = {
+  .path = "clear mc",
+  .short_help = "Clear mc command",
+  .function = mc_clear_command,
+};
+
+static clib_error_t *
+mc_config (vlib_main_t * vm, unformat_input_t * input)
+{
+  mc_test_main_t * tm = &mc_test_main;
+  mc_socket_main_t * msm = &mc_socket_main;
+  clib_error_t * error = 0;
+
+  tm->min_n_msg_bytes = 4;
+  tm->max_n_msg_bytes = 4;
+  tm->window_size = 8;
+  tm->seed = getpid ();
+  tm->verbose = 0;
+  tm->validate = 1;
+  tm->min_delay = 10e-6;
+  tm->max_delay = 10e-3;
+  tm->n_packets_to_send = 0;
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "interface %s", &msm->multicast_interface_name))
+	;
+
+      else if (unformat (input, "n-bytes %d", &tm->max_n_msg_bytes))
+	tm->min_n_msg_bytes = tm->max_n_msg_bytes;
+      else if (unformat (input, "max-n-bytes %d", &tm->max_n_msg_bytes))
+	;
+      else if (unformat (input, "min-n-bytes %d", &tm->min_n_msg_bytes))
+	;
+      else if (unformat (input, "seed %d", &tm->seed))
+	;
+      else if (unformat (input, "window %d", &tm->window_size))
+	;
+      else if (unformat (input, "verbose"))
+	tm->verbose = 1;
+      else if (unformat (input, "no-validate"))
+	tm->validate = 0;
+      else if (unformat (input, "min-delay %f", &tm->min_delay))
+	;
+      else if (unformat (input, "max-delay %f", &tm->max_delay))
+	;
+      else if (unformat (input, "no-delay"))
+	tm->min_delay = tm->max_delay = 0;
+      else if (unformat (input, "n-packets %f", &tm->n_packets_to_send))
+	;
+
+      else
+	return clib_error_return (0, "unknown input `%U'",
+				  format_unformat_error, input);
+    }
+
+  if (tm->n_packets_to_send > 0)
+    vlib_process_signal_event (vm, mc_test_process_node.index,
+			       EVENT_SEND_DATA, (uword) tm->n_packets_to_send);
+
+  return error;
+}
+
+VLIB_CONFIG_FUNCTION (mc_config, "mc");