Improved performance on data-fwd node:

 - Removed full pit entry initialization in favor of a lighter initialization on few fields
 - Squeezed pit entry size in order to store only the number of incomplete faces (as set in HICN_PARAM_PIT_ENTRY_PHOPS_MAX). The bitmap size is now determined by HICN_PARAM_FACES_MAX and optimized to do a fast lookup

Replaced the field is_appface with the field flags in the hicn_buffer_t:

 - is_appface is now a flag with value 0x01 (HICN_BUFFER_FLAGS_FACE_IS_APP)
 - Added flag HICN_BUFFER_FLAGS_PKT_LESS_TWO_CL (0x02) to handle the copy of pkt with length < than 2*CACHE_LINES (in this case cloning is prevented by the cloning function in vpp). Such flag is initialized by the incoming face of the pkt.

Change-Id: Ia956fd5719a28ee29f7fa2fd23d283964743efd8
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/hicn-plugin/src/data_fwd.h b/hicn-plugin/src/data_fwd.h
index 7390382ef..df74e9150 100755
--- a/hicn-plugin/src/data_fwd.h
+++ b/hicn-plugin/src/data_fwd.h
@@ -79,13 +79,10 @@ vlib_buffer_clone_256_2 (vlib_main_t * vm, u32 src_buffer, u32 * buffers,
 	{
 	  vlib_buffer_t *d;
 	  d = vlib_buffer_copy (vm, s);
-	  clib_memcpy (d->opaque2, s->opaque2, sizeof (s->opaque2));
 	  if (d == 0)
 	    return i;
 	  buffers[i] = vlib_get_buffer_index (vm, d);
 	}
-      s->current_data += head_end_offset;
-      s->current_length -= head_end_offset;
       return n_buffers;
     }
   n_buffers = vlib_buffer_alloc_from_free_list (vm, buffers, n_buffers,
@@ -145,8 +142,6 @@ always_inline u16
 vlib_buffer_clone2 (vlib_main_t * vm, u32 src_buffer, u32 * buffers,
 		    u16 n_buffers, u16 head_end_offset)
 {
-  ASSERT (head_end_offset >= VLIB_BUFFER_MIN_CHAIN_SEG_SIZE);
-
   vlib_buffer_t *s = vlib_get_buffer (vm, src_buffer);
 
   /*