X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fopenflow%2Fopenflow-1.0.h;h=9af7740f8762951543c05f785e760a311f93e4f6;hb=7f05e7abc8fc190c5ff60dd3c3fcd4b9eb5c8dfa;hp=75c5fc3dbc3d91b404e3c7dc0a941f5b0759cbf7;hpb=358058064ba6544c9d310c78859b02a42e09f76b;p=sliver-openvswitch.git

diff --git a/include/openflow/openflow-1.0.h b/include/openflow/openflow-1.0.h
index 75c5fc3db..9af7740f8 100644
--- a/include/openflow/openflow-1.0.h
+++ b/include/openflow/openflow-1.0.h
@@ -21,12 +21,20 @@
 
 #include "openflow/openflow-common.h"
 
-/* Port numbering.  Physical ports are numbered starting from 1. */
+/* Port number(s)   meaning
+ * ---------------  --------------------------------------
+ * 0x0000           not assigned a meaning by OpenFlow 1.0
+ * 0x0001...0xfeff  "physical" ports
+ * 0xff00...0xfff7  "reserved" but not assigned a meaning by OpenFlow 1.0
+ * 0xfff8...0xffff  "reserved" OFPP_* ports with assigned meanings
+ */
 enum ofp_port {
-    /* Maximum number of physical switch ports. */
-    OFPP_MAX = 0xff00,
+    /* Ranges. */
+    OFPP_MAX        = 0xff00,   /* Maximum number of physical switch ports. */
+    OFPP_FIRST_RESV = 0xfff8,   /* First assigned reserved port number. */
+    OFPP_LAST_RESV  = 0xffff,   /* Last assigned reserved port number. */
 
-    /* Fake output "ports". */
+    /* Reserved output "ports". */
     OFPP_IN_PORT    = 0xfff8,  /* Send the packet out the input port.  This
                                   virtual port must be explicitly used
                                   in order to send back out of the input
@@ -323,7 +331,7 @@ enum ofp_flow_wildcards {
 #define OFP_DL_TYPE_NOT_ETH_TYPE  0x05ff
 
 /* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate
- * special conditions.  All ones indicates that no VLAN id was set.
+ * special conditions.  All ones indicates that 802.1Q header is not present.
  */
 #define OFP10_VLAN_NONE      0xffff