buffers: make buffer data size configurable from startup config

[vpp.git] / src / vlib / buffer.h

diff --git a/src/vlib/buffer.h b/src/vlib/buffer.h
index 1adde73..31baf5f 100644 (file)
--- a/src/vlib/buffer.h
+++ b/src/vlib/buffer.h
@@ -48,9 +48,10 @@
 #include <vlib/error.h>                /* for vlib_error_t */
 
 #include <vlib/config.h>       /* for __PRE_DATA_SIZE */
-#define VLIB_BUFFER_DATA_SIZE          (2048)
 #define VLIB_BUFFER_PRE_DATA_SIZE      __PRE_DATA_SIZE
 
+#define VLIB_BUFFER_DEFAULT_DATA_SIZE (2048)
+
 /* Minimum buffer chain segment size. Does not apply to last buffer in chain.
    Dataplane code can safely asume that specified amount of data is not split
    into 2 chained buffers */
@@ -413,6 +414,7 @@ typedef struct
   /* config */
   u32 buffers_per_numa;
   u16 ext_hdr_size;
+  u32 default_data_size;
 
   /* logging */
   vlib_log_class_t log_default;