examples/vhost: reduce number of hugepages needed

Add #ifndef MAX_QUEUES to change MAX_QUEUES at compile time if needed.
Change MAX_QUEUES from 512 to 128 to reduce the number of hugepages
required by the vhost-switch program.

To change MAX_QUEUES add '-D MAX_QUEUES=512' to the EXTRA_CFLAGS variable,
before building the application.

Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index b30f1bd..2dcdacb 100644 (file)
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -53,7 +53,9 @@
 
 #include "main.h"
 
-#define MAX_QUEUES 512
+#ifndef MAX_QUEUES
+#define MAX_QUEUES 128
+#endif
 
 /* the maximum number of external ports supported */
 #define MAX_SUP_PORTS 1