Add support for 800G interfaces in STP (#71)

* Add support for 800G interfaces in STP

* addressed review comments

Author: Yogapriya-cisco

include/stp.h

@@ -52,6 +52,7 @@
 #define STP_LEGACY_PORT_PATH_COST_40G 1
 #define STP_LEGACY_PORT_PATH_COST_100G 1
 #define STP_LEGACY_PORT_PATH_COST_400G 1
+#define STP_LEGACY_PORT_PATH_COST_800G 1
 
 // 802.1t path costs - calculated as 20,000,000,000 / LinkSpeedInKbps
 #define STP_MIN_PORT_PATH_COST 1
@@ -65,6 +66,7 @@
 #define STP_PORT_PATH_COST_40G 500
 #define STP_PORT_PATH_COST_100G 200
 #define STP_PORT_PATH_COST_400G 50
+#define STP_PORT_PATH_COST_800G 25
 #define STP_PORT_PATH_COST_1T 20
 #define STP_PORT_PATH_COST_10T 2
 
@@ -396,4 +398,4 @@ typedef enum
 	STP_RAS_TCM_DETECTED
 } STP_RAS_EVENTS;
 
-#endif //__STP_H__
+#endif //__STP_H__

include/stp_intf.h

@@ -123,6 +123,7 @@ typedef enum STP_PORT_SPEED
     STP_SPEED_40G   = 40000,
     STP_SPEED_100G  = 100000,
     STP_SPEED_400G  = 400000,
+    STP_SPEED_800G  = 800000,
     STP_SPEED_1T    = 1000000,
     STP_SPEED_10T   = 10000000,
     STP_SPEED_LAST

stp/stp_util.c

@@ -98,6 +98,9 @@ UINT32 stputil_get_path_cost(STP_PORT_SPEED port_speed, bool extend)
 		case STP_SPEED_400G:
 			return ((extend) ? STP_PORT_PATH_COST_400G: STP_LEGACY_PORT_PATH_COST_400G);
 
+		case STP_SPEED_800G:
+			return ((extend) ? STP_PORT_PATH_COST_800G: STP_LEGACY_PORT_PATH_COST_800G);
+
         default:
             break;
 	}