Allow an IPsec tunnel interface to be renumbered

[vpp.git] / src / vnet / tcp / tcp_debug.h

diff --git a/src/vnet/tcp/tcp_debug.h b/src/vnet/tcp/tcp_debug.h
index eb318cd..e37b3cd 100755 (executable)
--- a/src/vnet/tcp/tcp_debug.h
+++ b/src/vnet/tcp/tcp_debug.h
@@ -22,6 +22,7 @@
 #define TCP_DEBUG_SM (0)
 #define TCP_DEBUG_CC (0)
 #define TCP_DEBUG_CC_STAT (1)
+#define TCP_DEBUG_BUFFER_ALLOCATION (0)
 
 #define foreach_tcp_dbg_evt            \
   _(INIT, "")                          \
@@ -327,15 +328,18 @@ typedef enum _tcp_dbg_evt
 
 #define TCP_EVT_RST_SENT_HANDLER(_tc, ...)                             \
 {                                                                      \
-  ELOG_TYPE_DECLARE (_e) =                                             \
+if (_tc)                                                               \
   {                                                                    \
-    .format = "rst-tx: snd_nxt %d rcv_nxt %d",                         \
-    .format_args = "i4i4",                                             \
-  };                                                                   \
-  DECLARE_ETD(_tc, _e, 2);                                             \
-  ed->data[0] = _tc->snd_nxt - _tc->iss;                               \
-  ed->data[1] = _tc->rcv_nxt - _tc->irs;                               \
-  TCP_EVT_STATE_CHANGE_HANDLER(_tc);                                   \
+    ELOG_TYPE_DECLARE (_e) =                                           \
+    {                                                                  \
+      .format = "rst-tx: snd_nxt %d rcv_nxt %d",                       \
+      .format_args = "i4i4",                                           \
+    };                                                                 \
+    DECLARE_ETD(_tc, _e, 2);                                           \
+    ed->data[0] = _tc->snd_nxt - _tc->iss;                             \
+    ed->data[1] = _tc->rcv_nxt - _tc->irs;                             \
+    TCP_EVT_STATE_CHANGE_HANDLER(_tc);                                 \
+  }                                                                    \
 }
 
 #define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...)                             \
@@ -747,6 +751,39 @@ if (_tc->c_cc_stat_tstamp + STATS_INTERVAL < tcp_time_now())               \
 }                                                                      \
 }
 
+/*
+ * Buffer allocation
+ */
+#if TCP_DEBUG_BUFFER_ALLOCATION
+
+#define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index)                  \
+{                                                                      \
+  static u32 *buffer_fail_counters;                                    \
+  if (PREDICT_FALSE (buffer_fail_counters == 0))                               \
+    {                                                                  \
+      u32 num_threads;                                                 \
+      vlib_thread_main_t *vtm = vlib_get_thread_main ();                       \
+      num_threads = 1 /* main thread */  + vtm->n_threads;             \
+      vec_validate (buffer_fail_counters, num_threads - 1);            \
+    }                                                                  \
+  if (PREDICT_FALSE (tcp_main.buffer_fail_fraction != 0.0))            \
+    {                                                                  \
+      if (PREDICT_TRUE (buffer_fail_counters[thread_index] > 0))               \
+        {                                                              \
+          if ((1.0 / (f32) (buffer_fail_counters[thread_index]))               \
+              < tcp_main.buffer_fail_fraction)                         \
+            {                                                          \
+              buffer_fail_counters[thread_index] = 0.0000001;          \
+              return -1;                                                       \
+            }                                                          \
+        }                                                              \
+      buffer_fail_counters[thread_index] ++;                           \
+    }                                                                  \
+}
+#else
+#define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index)
+#endif
+
 #else
 #define TCP_EVT_CC_STAT_HANDLER(_tc, ...)
 #endif