commit acd2a6a32cebab70a054e9335e446798538d0524
author Dave Barach <dbarach@cisco.com> Tue May 16 17:41:34 2017 -0400
committer Florin Coras <florin.coras@gmail.com> Wed May 17 04:52:46 2017 +0000
tree a1202b3b20ae022894af6ceb9bd09a2ecb98f972
parent d5b6aa139856a1447f7bc5377058202110eaa4cf

VPP-846: tcp perf / scale / hardening

Fix builtin server event queue handling

Change-Id: I21b49c37188746cadb2fd9423291c5dc1335798c
Signed-off-by: Dave Barach <dbarach@cisco.com>

src/vnet/tcp/builtin_server.c

diff --git a/src/vnet/tcp/builtin_server.c b/src/vnet/tcp/builtin_server.c
index 621ce02..64fc4a7 100644
--- a/src/vnet/tcp/builtin_server.c
+++ b/src/vnet/tcp/builtin_server.c
@@ -141,16 +141,14 @@
   session_fifo_event_t evt;
   static int serial_number = 0;
 
+  tx_fifo = s->server_tx_fifo;
+  rx_fifo = s->server_rx_fifo;
+
   max_dequeue = svm_fifo_max_dequeue (s->server_rx_fifo);
   max_enqueue = svm_fifo_max_enqueue (s->server_tx_fifo);
 
   if (PREDICT_FALSE (max_dequeue == 0))
-    {
-      return 0;
-    }
-
-  tx_fifo = s->server_tx_fifo;
-  rx_fifo = s->server_rx_fifo;
+    return 0;
 
   /* Number of bytes we're going to copy */
   max_transfer = (max_dequeue < max_enqueue) ? max_dequeue : max_enqueue;
@@ -175,8 +173,6 @@
       return 0;
     }
 
-  svm_fifo_unset_event (rx_fifo);
-
   vec_validate (bsm->rx_buf, max_transfer - 1);
   _vec_len (bsm->rx_buf) = max_transfer;