TCP cc/window management fixes and debugging

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

diff --git a/src/vnet/session/session_debug.h b/src/vnet/session/session_debug.h
index 80a97cd..eb11f1a 100644 (file)
--- a/src/vnet/session/session_debug.h
+++ b/src/vnet/session/session_debug.h
@@ -16,13 +16,13 @@
 #define SRC_VNET_SESSION_SESSION_DEBUG_H_
 
 #include <vnet/session/transport.h>
-#include <vnet/session/session.h>
 #include <vlib/vlib.h>
 
 #define foreach_session_dbg_evt                \
   _(ENQ, "enqueue")                    \
   _(DEQ, "dequeue")                    \
-  _(DEQ_NODE, "dequeue")
+  _(DEQ_NODE, "dequeue")               \
+  _(POLL_GAP_TRACK, "poll gap track")  \
 
 typedef enum _session_evt_dbg
 {
@@ -33,6 +33,7 @@ typedef enum _session_evt_dbg
 
 #define SESSION_DBG (0)
 #define SESSION_DEQ_NODE_EVTS (0)
+#define SESSION_EVT_POLL_DBG (1)
 
 #if TRANSPORT_DEBUG && SESSION_DBG
 
@@ -97,9 +98,34 @@ typedef enum _session_evt_dbg
 #define SESSION_EVT_DEQ_NODE_HANDLER(_node_evt)
 #endif
 
+#if SESSION_DBG && SESSION_EVT_POLL_DBG
+#define SESSION_EVT_POLL_GAP(_smm, _my_thread_index)                   \
+{                                                                      \
+  ELOG_TYPE_DECLARE (_e) =                                             \
+  {                                                                    \
+    .format = "nixon-gap: %d MS",                                      \
+    .format_args = "i4",                                               \
+  };                                                                   \
+  DEC_SESSION_ED(_e, 1);                                               \
+  ed->data[0] =        (u32) ((now -                                           \
+    _smm->last_event_poll_by_thread[my_thread_index])*1000.0);         \
+}
+#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_smm, _my_thread_index)     \
+{                                                                      \
+  if (PREDICT_TRUE(                                                    \
+             smm->last_event_poll_by_thread[my_thread_index] != 0.0))  \
+    if (now > smm->last_event_poll_by_thread[_my_thread_index] + 500e-6)\
+       SESSION_EVT_POLL_GAP(smm, my_thread_index);                     \
+  _smm->last_event_poll_by_thread[my_thread_index] = now;              \
+}
+
+#else
+#define SESSION_EVT_POLL_GAP(_smm, _my_thread_index)
+#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_smm, _my_thread_index)
+#endif
+
 #define CONCAT_HELPER(_a, _b) _a##_b
 #define CC(_a, _b) CONCAT_HELPER(_a, _b)
-
 #define SESSION_EVT_DBG(_evt, _args...) CC(_evt, _HANDLER)(_args)
 
 #else