Session layer improvements
[vpp.git] / src / vnet / tcp / builtin_client.c
index a6eeb77..276beb2 100644 (file)
 #include <vpp/api/vpe_all_api_h.h>
 #undef vl_printfun
 
+#define TCP_BUILTIN_CLIENT_DBG (1)
+#define TCP_BUILTIN_CLIENT_VPP_THREAD (0)
+#define TCP_BUILTIN_CLIENT_PTHREAD (!TCP_BUILTIN_CLIENT_VPP_THREAD)
+
 static void
 send_test_chunk (tclient_main_t * tm, session_t * s)
 {
   u8 *test_data = tm->connect_test_data;
-  int test_buf_offset = 0;
+  int test_buf_offset;
   u32 bytes_this_chunk;
   session_fifo_event_t evt;
   static int serial_number = 0;
   int rv;
+  test_buf_offset = s->bytes_sent % vec_len (test_data);
+  bytes_this_chunk = vec_len (test_data) - test_buf_offset;
 
-  while (s->bytes_to_send > 0)
-    {
-      bytes_this_chunk = vec_len (test_data) < s->bytes_to_send
-       ? vec_len (test_data) : s->bytes_to_send;
+  bytes_this_chunk = bytes_this_chunk < s->bytes_to_send
+    ? bytes_this_chunk : s->bytes_to_send;
 
-      rv = svm_fifo_enqueue_nowait (s->server_tx_fifo, 0 /*pid */ ,
-                                   bytes_this_chunk,
-                                   test_data + test_buf_offset);
+  rv = svm_fifo_enqueue_nowait (s->server_tx_fifo, bytes_this_chunk,
+                               test_data + test_buf_offset);
 
-      if (rv > 0)
+  /* If we managed to enqueue data... */
+  if (rv > 0)
+    {
+      if (TCP_BUILTIN_CLIENT_DBG)
        {
-         s->bytes_to_send -= rv;
-         test_buf_offset += rv;
+          /* *INDENT-OFF* */
+          ELOG_TYPE_DECLARE (e) =
+            {
+              .format = "tx-enq: %d bytes",
+              .format_args = "i4",
+            };
+          /* *INDENT-ON* */
+         struct
+         {
+           u32 data[1];
+         } *ed;
+         ed = ELOG_DATA (&vlib_global_main.elog_main, e);
+         ed->data[0] = rv;
+       }
 
-         if (svm_fifo_set_event (s->server_tx_fifo))
-           {
-             /* Fabricate TX event, send to vpp */
-             evt.fifo = s->server_tx_fifo;
-             evt.event_type = FIFO_EVENT_SERVER_TX;
-             evt.event_id = serial_number++;
+      /* Account for it... */
+      s->bytes_to_send -= rv;
+      s->bytes_sent += rv;
 
-             unix_shared_memory_queue_add (tm->vpp_event_queue, (u8 *) & evt,
-                                           0 /* do wait for mutex */ );
-           }
+      /* Poke the TCP state machine */
+      if (svm_fifo_set_event (s->server_tx_fifo))
+       {
+         /* Fabricate TX event, send to vpp */
+         evt.fifo = s->server_tx_fifo;
+         evt.event_type = FIFO_EVENT_APP_TX;
+         evt.event_id = serial_number++;
+
+         unix_shared_memory_queue_add (tm->vpp_event_queue, (u8 *) & evt,
+                                       0 /* do wait for mutex */ );
        }
     }
 }
@@ -85,39 +107,55 @@ static void
 receive_test_chunk (tclient_main_t * tm, session_t * s)
 {
   svm_fifo_t *rx_fifo = s->server_rx_fifo;
-  int n_read, bytes, i;
+  int n_read, test_bytes = 0;
 
-  bytes = svm_fifo_max_dequeue (rx_fifo);
   /* Allow enqueuing of new event */
-  svm_fifo_unset_event (rx_fifo);
+  // svm_fifo_unset_event (rx_fifo);
 
-  /* Read the bytes */
-  do
+  n_read = svm_fifo_dequeue_nowait (rx_fifo, vec_len (tm->rx_buf),
+                                   tm->rx_buf);
+  if (n_read > 0)
     {
-      n_read = svm_fifo_dequeue_nowait (rx_fifo, 0, vec_len (tm->rx_buf),
-                                       tm->rx_buf);
-      if (n_read > 0)
+      if (TCP_BUILTIN_CLIENT_DBG)
+       {
+          /* *INDENT-OFF* */
+          ELOG_TYPE_DECLARE (e) =
+            {
+              .format = "rx-deq: %d bytes",
+              .format_args = "i4",
+            };
+          /* *INDENT-ON* */
+         struct
+         {
+           u32 data[1];
+         } *ed;
+         ed = ELOG_DATA (&vlib_global_main.elog_main, e);
+         ed->data[0] = n_read;
+       }
+
+      if (test_bytes)
        {
-         bytes -= n_read;
+         int i;
          for (i = 0; i < n_read; i++)
            {
              if (tm->rx_buf[i] != ((s->bytes_received + i) & 0xff))
                {
                  clib_warning ("read %d error at byte %lld, 0x%x not 0x%x",
-                               n_read, s->bytes_received + i,
-                               tm->rx_buf[i],
+                               n_read, s->bytes_received + i, tm->rx_buf[i],
                                ((s->bytes_received + i) & 0xff));
                }
            }
-         s->bytes_to_receive -= n_read;
-         s->bytes_received += n_read;
        }
-
+      s->bytes_to_receive -= n_read;
+      s->bytes_received += n_read;
     }
-  while (n_read < 0 || bytes > 0);
 }
 
+#if TCP_BUILTIN_CLIENT_VPP_THREAD
+static void
+#else
 static void *
+#endif
 tclient_thread_fn (void *arg)
 {
   tclient_main_t *tm = &tclient_main;
@@ -135,6 +173,8 @@ tclient_thread_fn (void *arg)
     pthread_sigmask (SIG_SETMASK, &s, 0);
   }
 
+  clib_per_cpu_mheaps[vlib_get_thread_index ()] = clib_per_cpu_mheaps[0];
+
   while (1)
     {
       /* Wait until we're told to get busy */
@@ -182,12 +222,12 @@ tclient_thread_fn (void *arg)
 
       /* Disconnect sessions... */
       vec_reset_length (session_indices);
-      pool_foreach (sp, tm->sessions, (
-                                       {
-                                       vec_add1 (session_indices,
-                                                 sp - tm->sessions);
-                                       }
-                   ));
+
+      /* *INDENT-OFF* */
+      pool_foreach (sp, tm->sessions, ({
+       vec_add1 (session_indices, sp - tm->sessions);
+      }));
+      /* *INDENT-ON* */
 
       for (i = 0; i < vec_len (session_indices); i++)
        {
@@ -196,23 +236,25 @@ tclient_thread_fn (void *arg)
          memset (dmp, 0, sizeof (*dmp));
          dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
          dmp->client_index = tm->my_client_index;
-         dmp->session_index = sp->vpp_session_index;
-         dmp->session_thread_index = sp->vpp_session_thread;
+         dmp->handle = sp->vpp_session_handle;
          vl_msg_api_send_shmem (tm->vl_input_queue, (u8 *) & dmp);
          pool_put (tm->sessions, sp);
        }
     }
   /* NOTREACHED */
+#if TCP_BUILTIN_CLIENT_PTHREAD
   return 0;
+#endif
 }
 
 /* So we don't get "no handler for... " msgs */
 static void
 vl_api_memclnt_create_reply_t_handler (vl_api_memclnt_create_reply_t * mp)
 {
+  vlib_main_t *vm = vlib_get_main ();
   tclient_main_t *tm = &tclient_main;
-
   tm->my_client_index = mp->index;
+  vlib_process_signal_event (vm, tm->node_index, 1 /* evt */ , 0 /* data */ );
 }
 
 static void
@@ -221,7 +263,6 @@ vl_api_connect_uri_reply_t_handler (vl_api_connect_uri_reply_t * mp)
   tclient_main_t *tm = &tclient_main;
   session_t *session;
   u32 session_index;
-  u64 key;
   i32 retval = /* clib_net_to_host_u32 ( */ mp->retval /*) */ ;
 
   if (retval < 0)
@@ -248,24 +289,24 @@ vl_api_connect_uri_reply_t_handler (vl_api_connect_uri_reply_t * mp)
   session->server_rx_fifo->client_session_index = session_index;
   session->server_tx_fifo = (svm_fifo_t *) mp->server_tx_fifo;
   session->server_tx_fifo->client_session_index = session_index;
-
-  session->vpp_session_index = mp->session_index;
-  session->vpp_session_thread = mp->session_thread_index;
+  session->vpp_session_handle = mp->handle;
 
   /* Add it to the session lookup table */
-  key = (((u64) mp->session_thread_index) << 32) | (u64) mp->session_index;
-  hash_set (tm->session_index_by_vpp_handles, key, session_index);
+  hash_set (tm->session_index_by_vpp_handles, mp->handle, session_index);
 
   tm->ready_connections++;
 }
 
-static void
+static int
 create_api_loopback (tclient_main_t * tm)
 {
+  vlib_main_t *vm = vlib_get_main ();
   vl_api_memclnt_create_t _m, *mp = &_m;
   extern void vl_api_memclnt_create_t_handler (vl_api_memclnt_create_t *);
   api_main_t *am = &api_main;
   vl_shmem_hdr_t *shmem_hdr;
+  uword *event_data = 0, event_type;
+  int resolved = 0;
 
   /*
    * Create a "loopback" API client connection
@@ -281,6 +322,25 @@ create_api_loopback (tclient_main_t * tm)
   strncpy ((char *) mp->name, "tcp_tester", sizeof (mp->name) - 1);
 
   vl_api_memclnt_create_t_handler (mp);
+
+  /* Wait for reply */
+  tm->node_index = vlib_get_current_process (vm)->node_runtime.node_index;
+  vlib_process_wait_for_event_or_clock (vm, 1.0);
+  event_type = vlib_process_get_events (vm, &event_data);
+  switch (event_type)
+    {
+    case 1:
+      resolved = 1;
+      break;
+    case ~0:
+      /* timed out */
+      break;
+    default:
+      clib_warning ("unknown event_type %d", event_type);
+    }
+  if (!resolved)
+    return -1;
+  return 0;
 }
 
 #define foreach_tclient_static_api_msg         \
@@ -290,17 +350,7 @@ _(CONNECT_URI_REPLY, connect_uri_reply)
 static clib_error_t *
 tclient_api_hookup (vlib_main_t * vm)
 {
-  tclient_main_t *tm = &tclient_main;
   vl_msg_api_msg_config_t _c, *c = &_c;
-  int i;
-
-  /* Init test data */
-  vec_validate (tm->connect_test_data, 64 * 1024 - 1);
-  for (i = 0; i < vec_len (tm->connect_test_data); i++)
-    tm->connect_test_data[i] = i & 0xff;
-
-  tm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
-  vec_validate (tm->rx_buf, vec_len (tm->connect_test_data) - 1);
 
   /* Hook up client-side static APIs to our handlers */
 #define _(N,n) do {                                             \
@@ -322,18 +372,107 @@ tclient_api_hookup (vlib_main_t * vm)
   return 0;
 }
 
-VLIB_API_INIT_FUNCTION (tclient_api_hookup);
+static int
+tcp_test_clients_init (vlib_main_t * vm)
+{
+  tclient_main_t *tm = &tclient_main;
+  int i;
+
+  tclient_api_hookup (vm);
+  if (create_api_loopback (tm))
+    return -1;
+
+  /* Init test data */
+  vec_validate (tm->connect_test_data, 64 * 1024 - 1);
+  for (i = 0; i < vec_len (tm->connect_test_data); i++)
+    tm->connect_test_data[i] = i & 0xff;
+
+  tm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
+  vec_validate (tm->rx_buf, vec_len (tm->connect_test_data) - 1);
+
+  tm->is_init = 1;
+
+  return 0;
+}
+
+static void
+builtin_session_reset_callback (stream_session_t * s)
+{
+  return;
+}
+
+static int
+builtin_session_connected_callback (u32 app_index, u32 api_context,
+                                   stream_session_t * s, u8 code)
+{
+  return 0;
+}
+
+static int
+builtin_session_create_callback (stream_session_t * s)
+{
+  return 0;
+}
+
+static void
+builtin_session_disconnect_callback (stream_session_t * s)
+{
+  return;
+}
+
+static int
+builtin_server_rx_callback (stream_session_t * s)
+{
+  return 0;
+}
+
+/* *INDENT-OFF* */
+static session_cb_vft_t builtin_clients = {
+    .session_reset_callback = builtin_session_reset_callback,
+    .session_connected_callback = builtin_session_connected_callback,
+    .session_accept_callback = builtin_session_create_callback,
+    .session_disconnect_callback = builtin_session_disconnect_callback,
+    .builtin_server_rx_callback = builtin_server_rx_callback
+};
+/* *INDENT-ON* */
+
+static int
+attach_builtin_test_clients ()
+{
+  vnet_app_attach_args_t _a, *a = &_a;
+  u8 segment_name[128];
+  u32 segment_name_length;
+  u64 options[16];
+
+  segment_name_length = ARRAY_LEN (segment_name);
+
+  memset (a, 0, sizeof (*a));
+  memset (options, 0, sizeof (options));
+
+  a->api_client_index = ~0;
+  a->segment_name = segment_name;
+  a->segment_name_length = segment_name_length;
+  a->session_cb_vft = &builtin_clients;
+
+  options[SESSION_OPTIONS_ACCEPT_COOKIE] = 0x12345678;
+  options[SESSION_OPTIONS_SEGMENT_SIZE] = (2 << 30);   /*$$$$ config / arg */
+  options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+
+  a->options = options;
+
+  return vnet_application_attach (a);
+}
 
 static clib_error_t *
 test_tcp_clients_command_fn (vlib_main_t * vm,
                             unformat_input_t * input,
                             vlib_cli_command_t * cmd)
 {
-  u8 *connect_uri = (u8 *) "tcp://6.0.1.2/1234";
-  u8 *uri;
   tclient_main_t *tm = &tclient_main;
-  int i;
+  u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
+  u8 *uri;
   u32 n_clients = 1;
+  int i;
 
   tm->bytes_to_send = 8192;
   tm->n_iterations = 1;
@@ -345,7 +484,7 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
        ;
       else if (unformat (input, "iterations %d", &tm->n_iterations))
        ;
-      else if (unformat (input, "bytes %d", &tm->bytes_to_send))
+      else if (unformat (input, "bytes %lld", &tm->bytes_to_send))
        ;
       else if (unformat (input, "uri %s", &tm->connect_uri))
        ;
@@ -354,25 +493,35 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
                                  format_unformat_error, input);
     }
 
+  if (tm->is_init == 0)
+    {
+      if (tcp_test_clients_init (vm))
+       return clib_error_return (0, "failed init");
+    }
+
   tm->ready_connections = 0;
   tm->expected_connections = n_clients;
+
   uri = connect_uri;
   if (tm->connect_uri)
     uri = tm->connect_uri;
 
-  create_api_loopback (tm);
-
+#if TCP_BUILTIN_CLIENT_PTHREAD
   /* Start a transmit thread */
   if (tm->client_thread_handle == 0)
     {
       int rv = pthread_create (&tm->client_thread_handle,
-                              NULL /*attr */ , tclient_thread_fn, 0);
+                              NULL /*attr */ ,
+                              tclient_thread_fn, 0);
       if (rv)
        {
          tm->client_thread_handle = 0;
          return clib_error_return (0, "pthread_create returned %d", rv);
        }
     }
+#endif
+  vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
+  attach_builtin_test_clients ();
 
   /* Fire off connect requests, in something approaching a normal manner */
   for (i = 0; i < n_clients; i++)
@@ -393,15 +542,37 @@ test_tcp_clients_command_fn (vlib_main_t * vm,
   return 0;
 }
 
+#if TCP_BUILTIN_CLIENT_VPP_THREAD
+/* *INDENT-OFF* */
+VLIB_REGISTER_THREAD (builtin_client_reg, static) = {
+  .name = "tcp-builtin-client",
+  .function = tclient_thread_fn,
+  .fixed_count = 1,
+  .count = 1,
+  .no_data_structure_clone = 1,
+};
+/* *INDENT-ON* */
+#endif
+
 /* *INDENT-OFF* */
 VLIB_CLI_COMMAND (test_clients_command, static) =
 {
   .path = "test tcp clients",
-  .short_help = "test tcp clients",
+  .short_help = "test tcp clients [nclients %d] [iterations %d] [bytes %d] [uri tcp://1.2.3.4/1234]",
   .function = test_tcp_clients_command_fn,
 };
 /* *INDENT-ON* */
 
+clib_error_t *
+tcp_test_clients_main_init (vlib_main_t * vm)
+{
+  tclient_main_t *tm = &tclient_main;
+  tm->is_init = 0;
+  return 0;
+}
+
+VLIB_INIT_FUNCTION (tcp_test_clients_main_init);
+
 /*
  * fd.io coding-style-patch-verification: ON
  *