session: async rx event notifications

[vpp.git] / src / vnet / session / application.h

diff --git a/src/vnet/session/application.h b/src/vnet/session/application.h
index b3201b9..5505d91 100644 (file)
--- a/src/vnet/session/application.h
+++ b/src/vnet/session/application.h
@@ -29,6 +29,16 @@
 #define APP_DBG(_fmt, _args...)
 #endif
 
+typedef struct app_wrk_postponed_msg_
+{
+  u32 len;
+  u8 event_type;
+  u8 ring;
+  u8 is_sapi;
+  int fd;
+  u8 data[SESSION_CTRL_MSG_TX_MAX_SIZE];
+} app_wrk_postponed_msg_t;
+
 typedef struct app_worker_
 {
   CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
@@ -59,11 +69,20 @@ typedef struct app_worker_
   /** API index for the worker. Needed for multi-process apps */
   u32 api_client_index;
 
+  /** Set if mq is congested */
+  u8 mq_congested;
+
   u8 app_is_builtin;
 
   /** Pool of half-open session handles. Tracked in case worker detaches */
   session_handle_t *half_open_table;
 
+  /* Per vpp worker fifos of events for app worker */
+  session_event_t **wrk_evts;
+
+  /* Vector of vpp workers mq congestion flags */
+  u8 *wrk_mq_congested;
+
   /** Protects detached seg managers */
   clib_spinlock_t detached_seg_managers_lock;
 
@@ -281,6 +300,7 @@ u8 application_has_global_scope (application_t * app);
 void application_setup_proxy (application_t * app);
 void application_remove_proxy (application_t * app);
 void application_namespace_cleanup (app_namespace_t *app_ns);
+int application_original_dst_is_enabled (application_t *app);
 
 segment_manager_props_t *application_get_segment_manager_properties (u32
                                                                     app_index);
@@ -297,6 +317,12 @@ void application_enable_rx_mqs_nodes (u8 is_en);
  * App worker
  */
 
+always_inline u8
+app_worker_mq_is_congested (app_worker_t *app_wrk)
+{
+  return app_wrk->mq_congested > 0;
+}
+
 app_worker_t *app_worker_alloc (application_t * app);
 int application_alloc_worker_and_init (application_t * app,
                                       app_worker_t ** wrk);
@@ -307,9 +333,14 @@ int app_worker_own_session (app_worker_t * app_wrk, session_t * s);
 void app_worker_free (app_worker_t * app_wrk);
 int app_worker_connect_session (app_worker_t *app, session_endpoint_cfg_t *sep,
                                session_handle_t *rsh);
-int app_worker_start_listen (app_worker_t * app_wrk, app_listener_t * lstnr);
+session_error_t app_worker_start_listen (app_worker_t *app_wrk,
+                                        app_listener_t *lstnr);
 int app_worker_stop_listen (app_worker_t * app_wrk, app_listener_t * al);
 int app_worker_init_accepted (session_t * s);
+int app_worker_listened_notify (app_worker_t *app_wrk, session_handle_t alsh,
+                               u32 opaque, int err);
+int app_worker_unlisten_reply (app_worker_t *app_wrk, session_handle_t sh,
+                              u32 opaque, session_error_t err);
 int app_worker_accept_notify (app_worker_t * app_wrk, session_t * s);
 int app_worker_init_connected (app_worker_t * app_wrk, session_t * s);
 int app_worker_connect_notify (app_worker_t * app_wrk, session_t * s,
@@ -322,13 +353,21 @@ int app_worker_transport_closed_notify (app_worker_t * app_wrk,
 int app_worker_reset_notify (app_worker_t * app_wrk, session_t * s);
 int app_worker_cleanup_notify (app_worker_t * app_wrk, session_t * s,
                               session_cleanup_ntf_t ntf);
+int app_worker_cleanup_notify_custom (app_worker_t *app_wrk, session_t *s,
+                                     session_cleanup_ntf_t ntf,
+                                     void (*cleanup_cb) (session_t *s));
 int app_worker_migrate_notify (app_worker_t * app_wrk, session_t * s,
                               session_handle_t new_sh);
-int app_worker_builtin_rx (app_worker_t * app_wrk, session_t * s);
-int app_worker_builtin_tx (app_worker_t * app_wrk, session_t * s);
+int app_worker_rx_notify (app_worker_t *app_wrk, session_t *s);
 int app_worker_session_fifo_tuning (app_worker_t * app_wrk, session_t * s,
                                    svm_fifo_t * f,
                                    session_ft_action_t act, u32 len);
+void app_worker_add_event (app_worker_t *app_wrk, session_t *s,
+                          session_evt_type_t evt_type);
+void app_worker_add_event_custom (app_worker_t *app_wrk, u32 thread_index,
+                                 session_event_t *evt);
+int app_wrk_flush_wrk_events (app_worker_t *app_wrk, u32 thread_index);
+void app_worker_del_all_events (app_worker_t *app_wrk);
 segment_manager_t *app_worker_get_listen_segment_manager (app_worker_t *,
                                                          session_t *);
 segment_manager_t *app_worker_get_connect_segment_manager (app_worker_t *);
@@ -339,9 +378,14 @@ int app_worker_del_segment_notify (app_worker_t * app_wrk,
 u32 app_worker_n_listeners (app_worker_t * app);
 session_t *app_worker_first_listener (app_worker_t * app,
                                      u8 fib_proto, u8 transport_proto);
-int app_worker_send_event (app_worker_t * app, session_t * s, u8 evt);
-int app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
-                                   u8 evt_type);
+void app_wrk_send_ctrl_evt_fd (app_worker_t *app_wrk, u8 evt_type, void *msg,
+                              u32 msg_len, int fd);
+void app_wrk_send_ctrl_evt (app_worker_t *app_wrk, u8 evt_type, void *msg,
+                           u32 msg_len);
+u8 app_worker_mq_wrk_is_congested (app_worker_t *app_wrk, u32 thread_index);
+void app_worker_set_mq_wrk_congested (app_worker_t *app_wrk, u32 thread_index);
+void app_worker_unset_wrk_mq_congested (app_worker_t *app_wrk,
+                                       u32 thread_index);
 session_t *app_worker_proxy_listener (app_worker_t * app, u8 fib_proto,
                                      u8 transport_proto);
 void app_worker_del_detached_sm (app_worker_t * app_wrk, u32 sm_index);
@@ -350,7 +394,7 @@ u8 *format_app_worker_listener (u8 * s, va_list * args);
 u8 *format_crypto_engine (u8 * s, va_list * args);
 u8 *format_crypto_context (u8 * s, va_list * args);
 void app_worker_format_connects (app_worker_t * app_wrk, int verbose);
-int vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a);
+session_error_t vnet_app_worker_add_del (vnet_app_worker_add_del_args_t *a);
 
 uword unformat_application_proto (unformat_input_t * input, va_list * args);
 
@@ -370,6 +414,12 @@ void sapi_socket_close_w_handle (u32 api_handle);
 crypto_engine_type_t app_crypto_engine_type_add (void);
 u8 app_crypto_engine_n_types (void);
 
+static inline u8
+app_worker_application_is_builtin (app_worker_t *app_wrk)
+{
+  return app_wrk->app_is_builtin;
+}
+
 #endif /* SRC_VNET_SESSION_APPLICATION_H_ */
 
 /*