ipcpd: Revise Data Transfer component0.10.0

This makes the TTL non-optional and allows the maximum (initial) value
of the TTL to be specified at bootstrap (the default is set to
60). The fd in the DT PCI is now called EID (Endpoint ID). The names
"dif" and "ae" have been replaced by "layer" and "component"
respectively in all sources.

Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>

1 files changed, 10 insertions, 12 deletions

diff --git a/src/ipcpd/normal/dt_pci.h b/src/ipcpd/normal/dt_pci.h
index 34df9281..8022f84a 100644
--- a/src/ipcpd/normal/dt_pci.h
+++ b/src/ipcpd/normal/dt_pci.h
@@ -1,7 +1,7 @@
 /*
  * Ouroboros - Copyright (C) 2016 - 2018
  *
- * Protocol Control Information of Data Transfer AE
+ * Protocol Control Information of Data Transfer Component
  *
  *    Dimitri Staessens <dimitri.staessens@ugent.be>
  *    Sander Vrijders   <sander.vrijders@ugent.be>
@@ -32,29 +32,27 @@
 
 /* Abstract syntax */
 enum dtp_fields {
-        DTP_DST = 0,   /* DST ADDRESS */
-        DTP_QOS,       /* QOS ID      */
-        DTP_DFD,       /* DEST FD     */
-        DTP_TTL,       /* TTL FIELD   */
-        DTP_NUM_FIELDS /* number of fields */
+        DTP_DST = 0,   /* DST ADDRESS      */
+        DTP_QOS,       /* QOS ID           */
+        DTP_DEID,      /* DST Endpoint ID  */
+        DTP_TTL,       /* TTL FIELD        */
+        DTP_NUM_FIELDS /* Number of fields */
 };
 
-/* Default field lengths */
+/* Fixed field lengths */
 #define TTL_LEN 1
 #define QOS_LEN 1
-#define DFD_LEN 1
-#define DST_LEN 2
 
 struct dt_pci {
         uint64_t  dst_addr;
         qoscube_t qc;
         uint8_t   ttl;
-        uint32_t  fd;
+        uint32_t  eid;
 };
 
 int   dt_pci_init(uint8_t addr_size,
-                  uint8_t fd_size,
-                  bool    has_ttl);
+                  uint8_t eid_size,
+                  uint8_t max_ttl);
 
 void  dt_pci_fini(void);