commit a5fb0ec6c3b19c5fe74f171297afe68be897548c
author Dave Barach <dave@barachs.net> Mon Dec 03 19:07:09 2018 -0500
committer Damjan Marion <dmarion@me.com> Tue Dec 04 12:04:37 2018 +0000
tree cbe0f47caf86e8447d93926ea65c8425e1c10691
parent dc2e251398b196a6fa3b2287f0755330757df02a

Add VNET_BUFFER_F_AVAIL definitions

Add a check to make sure that the vlib and vnet buffer flag bit
definitions do not overlap.

The VNET_BUFFER_F_AVAIL1...8 definitions allow out-of-tree codes to:

  #define VNET_BUFFER_F_MY_USECASE VNET_BUFFER_F_AVAIL1

and so on. This avoids introducing irrelevant and/or proprietary bit
definitions into vnet/buffer.h, and hopefully minimizes merge pain for
everyone involved.

Change-Id: I5be4f61dceb81b5bfca005f6d609ade074af205b
Signed-off-by: Dave Barach <dave@barachs.net>

src/vlib/buffer.h

diff --git a/src/vlib/buffer.h b/src/vlib/buffer.h
index 02b1709..ceab94f 100644
--- a/src/vlib/buffer.h
+++ b/src/vlib/buffer.h
@@ -98,6 +98,7 @@
   /* User defined buffer flags. */
 #define LOG2_VLIB_BUFFER_FLAG_USER(n) (32 - (n))
 #define VLIB_BUFFER_FLAG_USER(n) (1 << LOG2_VLIB_BUFFER_FLAG_USER(n))
+#define VLIB_BUFFER_FLAGS_ALL (0x1f)
 
 /* VLIB buffer representation. */
 typedef struct