userspace/snmpd: add the time of last servo update

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

userspace/snmpd/WR-SWITCH-MIB.txt

@@ -1588,7 +1588,8 @@ WrsPtpDataEntry ::=
         wrsPtpDeltaRxS          Integer32,
         wrsPtpServoStateErrCnt  Counter32,
         wrsPtpClockOffsetErrCnt Counter32,
-        wrsPtpRTTErrCnt         Counter32
+        wrsPtpRTTErrCnt         Counter32,
+        wrsPtpServoUpdateTime   Counter64
     }
 
 wrsPtpDataIndex OBJECT-TYPE
@@ -1783,6 +1784,14 @@ wrsPtpRTTErrCnt OBJECT-TYPE
             "Number of servo updates with wrong RTT"
     ::= { wrsPtpDataEntry 22 }
 
+wrsPtpServoUpdateTime OBJECT-TYPE
+    SYNTAX      Counter64
+    MAX-ACCESS  read-only
+    STATUS      current
+    DESCRIPTION
+            "TAI Nanosecond of the last servo's update"
+    ::= { wrsPtpDataEntry 23 }
+
 -- wrsPortStatusTable (.7.6)
 wrsPortStatusTable OBJECT-TYPE
     SYNTAX      SEQUENCE OF WrsPortStatusEntry

userspace/snmpd/wrsPtpDataTable.c

@@ -28,6 +28,8 @@ static struct pickinfo wrsPtpDataTable_pickinfo[] = {
 	FIELD(wrsPtpDataTable_s, ASN_COUNTER, n_err_state),
 	FIELD(wrsPtpDataTable_s, ASN_COUNTER, n_err_offset),
 	FIELD(wrsPtpDataTable_s, ASN_COUNTER, n_err_delta_rtt),
+	FIELD(wrsPtpDataTable_s, ASN_COUNTER64, update_time),
+
 };
 
 static int32_t int_saturate(int64_t value)
@@ -110,6 +112,9 @@ time_t wrsPtpDataTable_data_fill(unsigned int *n_rows)
 		wrsPtpDataTable_array[0].n_err_state = ppsi_servo->n_err_state;
 		wrsPtpDataTable_array[0].n_err_offset = ppsi_servo->n_err_offset;
 		wrsPtpDataTable_array[0].n_err_delta_rtt = ppsi_servo->n_err_delta_rtt;
+		wrsPtpDataTable_array[0].update_time =
+			(((uint64_t) ppsi_servo->update_time.seconds) * 1000000000LL)
+			+ ppsi_servo->update_time.nanoseconds;
 		retries++;
 		if (retries > 100) {
 			snmp_log(LOG_ERR, "%s: too many retries to read PPSI\n",

userspace/snmpd/wrsPtpDataTable.h

@@ -33,6 +33,7 @@ struct wrsPtpDataTable_s {
 	uint32_t n_err_state;
 	uint32_t n_err_offset;
 	uint32_t n_err_delta_rtt;
+	uint64_t update_time;
 };
 
 extern struct wrsPtpDataTable_s wrsPtpDataTable_array[WRS_MAX_N_SERVO_INSTANCES];

userspace/tools/wrs_dump_shmem.c

@@ -507,6 +507,7 @@ struct dump_info servo_state_info [] = {
 	DUMP_FIELD(UInteger32, n_err_state),
 	DUMP_FIELD(UInteger32, n_err_offset),
 	DUMP_FIELD(UInteger32, n_err_delta_rtt),
+	DUMP_FIELD(TimeInternal, update_time),
 };
 
 #undef DUMP_STRUCT