session tcp vcl: api to update connection attributes

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

diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index 3c4e15a..67583d2 100644 (file)
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -22,14 +22,17 @@
 #define TRANSPORT_PACER_MIN_MSS        1460
 #define TRANSPORT_PACER_MIN_BURST      TRANSPORT_PACER_MIN_MSS
 #define TRANSPORT_PACER_MAX_BURST      (43 * TRANSPORT_PACER_MIN_MSS)
+#define TRANSPORT_PACER_MAX_BURST_PKTS 43
+#define TRANSPORT_PACER_BURSTS_PER_RTT 20
 #define TRANSPORT_PACER_MIN_IDLE       100
 #define TRANSPORT_PACER_IDLE_FACTOR    0.05
 
 typedef struct _transport_options_t
 {
+  char *name;
+  char *short_name;
   transport_tx_fn_type_t tx_type;
   transport_service_type_t service_type;
-  u8 half_open_has_fifos;
 } transport_options_t;
 
 typedef enum transport_snd_flags_
@@ -41,9 +44,21 @@ typedef enum transport_snd_flags_
 
 typedef struct transport_send_params_
 {
-  u32 snd_space;
-  u32 tx_offset;
-  u16 snd_mss;
+  union
+  {
+    /* Used to retrieve snd params from transports */
+    struct
+    {
+      u32 snd_space;
+      u32 tx_offset;
+      u16 snd_mss;
+    };
+    /* Used by custom tx functions */
+    struct
+    {
+      u32 max_burst_size;
+    };
+  };
   transport_snd_flags_t flags;
 } transport_send_params_t;
 
@@ -62,6 +77,7 @@ typedef struct _transport_proto_vft
   void (*close) (u32 conn_index, u32 thread_index);
   void (*reset) (u32 conn_index, u32 thread_index);
   void (*cleanup) (u32 conn_index, u32 thread_index);
+  void (*cleanup_ho) (u32 conn_index);
   clib_error_t *(*enable) (vlib_main_t * vm, u8 is_en);
 
   /*
@@ -73,7 +89,7 @@ typedef struct _transport_proto_vft
                      transport_send_params_t *sp);
   void (*update_time) (f64 time_now, u8 thread_index);
   void (*flush_data) (transport_connection_t *tconn);
-  int (*custom_tx) (void *session, u32 max_burst_size);
+  int (*custom_tx) (void *session, transport_send_params_t *sp);
   int (*app_rx_evt) (transport_connection_t *tconn);
 
   /*
@@ -91,13 +107,15 @@ typedef struct _transport_proto_vft
   u8 *(*format_half_open) (u8 * s, va_list * args);
 
   /*
-   *  Properties retrieval
+   *  Properties retrieval/setting
    */
   void (*get_transport_endpoint) (u32 conn_index, u32 thread_index,
                                  transport_endpoint_t *tep, u8 is_lcl);
   void (*get_transport_listener_endpoint) (u32 conn_index,
                                           transport_endpoint_t *tep,
                                           u8 is_lcl);
+  int (*attribute) (u32 conn_index, u32 thread_index, u8 is_get,
+                   transport_endpt_attr_t *attr);
 
   /*
    * Properties
@@ -123,11 +141,15 @@ u32 transport_start_listen (transport_proto_t tp, u32 session_index,
 u32 transport_stop_listen (transport_proto_t tp, u32 conn_index);
 void transport_cleanup (transport_proto_t tp, u32 conn_index,
                        u8 thread_index);
+void transport_cleanup_half_open (transport_proto_t tp, u32 conn_index);
 void transport_get_endpoint (transport_proto_t tp, u32 conn_index,
                             u32 thread_index, transport_endpoint_t * tep,
                             u8 is_lcl);
 void transport_get_listener_endpoint (transport_proto_t tp, u32 conn_index,
                                      transport_endpoint_t * tep, u8 is_lcl);
+int transport_connection_attribute (transport_proto_t tp, u32 conn_index,
+                                   u8 thread_index, u8 is_get,
+                                   transport_endpt_attr_t *attr);
 
 static inline transport_connection_t *
 transport_get_connection (transport_proto_t tp, u32 conn_index,
@@ -149,9 +171,10 @@ transport_get_half_open (transport_proto_t tp, u32 conn_index)
 }
 
 static inline int
-transport_custom_tx (transport_proto_t tp, void *s, u32 max_burst_size)
+transport_custom_tx (transport_proto_t tp, void *s,
+                    transport_send_params_t * sp)
 {
-  return tp_vfts[tp].custom_tx (s, max_burst_size);
+  return tp_vfts[tp].custom_tx (s, sp);
 }
 
 static inline int
@@ -193,11 +216,30 @@ transport_connection_deschedule (transport_connection_t * tc)
   tc->flags |= TRANSPORT_CONNECTION_F_DESCHED;
 }
 
+static inline u8
+transport_connection_is_cless (transport_connection_t * tc)
+{
+  return ((tc->flags & TRANSPORT_CONNECTION_F_CLESS) ? 1 : 0);
+}
+
 void transport_connection_reschedule (transport_connection_t * tc);
+void transport_fifos_init_ooo (transport_connection_t * tc);
 
+/**
+ * Register transport virtual function table.
+ *
+ * @param transport_proto - transport protocol type (i.e., TCP, UDP ..)
+ * @param vft - virtual function table for transport proto
+ * @param fib_proto - network layer protocol
+ * @param output_node - output node index that session layer will hand off
+ *                     buffers to, for requested fib proto
+ */
 void transport_register_protocol (transport_proto_t transport_proto,
                                  const transport_proto_vft_t * vft,
                                  fib_protocol_t fib_proto, u32 output_node);
+transport_proto_t
+transport_register_new_protocol (const transport_proto_vft_t * vft,
+                                fib_protocol_t fib_proto, u32 output_node);
 transport_proto_vft_t *transport_protocol_get_vft (transport_proto_t tp);
 void transport_update_time (clib_time_type_t time_now, u8 thread_index);
 
@@ -205,6 +247,8 @@ int transport_alloc_local_port (u8 proto, ip46_address_t * ip);
 int transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t * rmt,
                                    ip46_address_t * lcl_addr,
                                    u16 * lcl_port);
+void transport_share_local_endpoint (u8 proto, ip46_address_t * lcl_ip,
+                                    u16 port);
 void transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port);
 void transport_enable_disable (vlib_main_t * vm, u8 is_en);
 void transport_init (void);
@@ -300,6 +344,14 @@ void
 transport_connection_tx_pacer_update_bytes (transport_connection_t * tc,
                                            u32 bytes);
 
+/**
+ * Request pacer time update
+ *
+ * @param thread_index thread for which time is updated
+ * @param now          time now
+ */
+void transport_update_pacer_time (u32 thread_index, clib_time_type_t now);
+
 #endif /* SRC_VNET_SESSION_TRANSPORT_H_ */
 
 /*