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-rw-r--r--hicn-plugin/src/pcs.h30
1 files changed, 15 insertions, 15 deletions
diff --git a/hicn-plugin/src/pcs.h b/hicn-plugin/src/pcs.h
index 1d99136a2..a9e1ae5a0 100644
--- a/hicn-plugin/src/pcs.h
+++ b/hicn-plugin/src/pcs.h
@@ -22,8 +22,17 @@
#include "error.h"
#include "cache_policies/cs_policy.h"
#include "faces/face.h"
-#include "faces/dpo_face.h"
-//#include "faces/app/face_prod.h"
+
+/**
+ * @file pcs.h
+ *
+ * This file implement the PIT and CS which are collapsed in the same
+ * structure, thereore an entry is either a PIT entry of a CS entry.
+ * The implementation consist of a hash table where each entry of the
+ * hash table contains a PIT or CS entry, some counters to maintain the
+ * status of the PIT/CS and the reference to the eviction policy for
+ * the CS. The default eviction policy id FIFO.
+ */
/* The PIT and CS are stored as a union */
#define HICN_PIT_NULL_TYPE 0
@@ -32,7 +41,7 @@
/*
* Definitions and Forward refs for the time counters we're trying out.
- * Counters are maintained by the background process.
+ * Counters are maintained by the background process. TODO.
*/
#define SEC_MS 1000
#define HICN_INFRA_FAST_TIMER_SECS 1
@@ -41,8 +50,7 @@
#define HICN_INFRA_SLOW_TIMER_MSECS (HICN_INFRA_SLOW_TIMER_SECS * SEC_MS)
/*
- * Max number of incoming (interest) faces supported, for now. Note that
- * changing this may change alignment within the PIT struct, so be careful.
+ * Note that changing this may change alignment within the PIT struct, so be careful.
*/
typedef struct __attribute__ ((packed)) hicn_pcs_shared_s
{
@@ -72,13 +80,11 @@ typedef struct __attribute__ ((packed)) hicn_pit_entry_s
/*
* Egress next hop (containes the egress face) This id refers to the
- * nh
- */
- /* choosen in the next_hops array of the dpo */
+ * position of the choosen face in the next_hops array of the dpo */
/* 18B + 1B = 19B */
u8 pe_txnh;
- /* Array of faces */
+ /* Array of incoming ifaces */
/* 24B + 32B (8B*4) =56B */
hicn_face_db_t faces;
@@ -101,12 +107,6 @@ typedef struct __attribute__ ((packed)) hicn_cs_entry_s
/* Ingress face */
/* 24B + 4B = 28B */
hicn_face_id_t cs_rxface;
- /* //Fix alignment issues */
- /* union */
- /* { */
- /* dpo_id_t cs_rxface; */
- /* u64 cs_rxface_u64; */
- /* }; */
/* Linkage for LRU, in the form of hashtable node indexes */
/* 28B + 8B = 36B */