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, 8 insertions, 0 deletions

diff --git a/hicn-plugin/src/hashtb.c b/hicn-plugin/src/hashtb.c
index 332da350d..0bdb91c0d 100755
--- a/hicn-plugin/src/hashtb.c
+++ b/hicn-plugin/src/hashtb.c
@@ -409,6 +409,8 @@ hicn_hashtb_init_entry (hicn_hash_entry_t * entry, u32 nodeidx,
   /* Clear out some other fields in the entry */
   entry->he_flags = 0;
   entry->locks = locks;
+  entry->vft_id = 0;
+  entry->dpo_ctx_id = 0;
 }
 
 /*
@@ -506,6 +508,8 @@ loop_buckets:
 
 	      node->bucket_id = current_bucket_id;
 	      node->entry_idx = i;
+	      (*hash_entry)->vft_id = *vft_id;
+	      (*hash_entry)->dpo_ctx_id = *dpo_ctx_id;
 	      if (is_overflow)
 		node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET;
 
@@ -590,6 +594,8 @@ loop_buckets:
 	  node->bucket_id = (newbkt - h->ht_overflow_buckets);
 	  node->entry_idx = 1;
 	  node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET;
+	  (*hash_entry)->vft_id = *vft_id;
+	  (*hash_entry)->dpo_ctx_id = *dpo_ctx_id;
 	}
       else
 	{
@@ -600,6 +606,8 @@ loop_buckets:
 	  node->bucket_id = (newbkt - h->ht_overflow_buckets);
 	  node->entry_idx = 0;
 	  node->hn_flags |= HICN_HASH_NODE_OVERFLOW_BUCKET;
+	  (*hash_entry)->vft_id = *vft_id;
+	  (*hash_entry)->dpo_ctx_id = *dpo_ctx_id;
 	}
     }