[portstat]: add new counters needed by snmp (#453)

* [portstat]: add new counters needed by snmp

Signed-off-by: Sihui Han <[email protected]>

* remove not supported SAI_QUEUE_STAT_DISCARD_DROPPED_PACKETS

Author: sihuihan88

orchagent/portsorch.cpp

@@ -61,22 +61,37 @@ const vector<sai_port_stat_t> portStatIds =
     SAI_PORT_STAT_IF_OUT_BROADCAST_PKTS,
     SAI_PORT_STAT_ETHER_RX_OVERSIZE_PKTS,
     SAI_PORT_STAT_ETHER_TX_OVERSIZE_PKTS,
+    SAI_PORT_STAT_PFC_0_TX_PKTS,
+    SAI_PORT_STAT_PFC_1_TX_PKTS,
+    SAI_PORT_STAT_PFC_2_TX_PKTS,
+    SAI_PORT_STAT_PFC_3_TX_PKTS,
+    SAI_PORT_STAT_PFC_4_TX_PKTS,
+    SAI_PORT_STAT_PFC_5_TX_PKTS,
+    SAI_PORT_STAT_PFC_6_TX_PKTS,
+    SAI_PORT_STAT_PFC_7_TX_PKTS,
     SAI_PORT_STAT_PFC_0_RX_PKTS,
     SAI_PORT_STAT_PFC_1_RX_PKTS,
     SAI_PORT_STAT_PFC_2_RX_PKTS,
     SAI_PORT_STAT_PFC_3_RX_PKTS,
     SAI_PORT_STAT_PFC_4_RX_PKTS,
     SAI_PORT_STAT_PFC_5_RX_PKTS,
     SAI_PORT_STAT_PFC_6_RX_PKTS,
-    SAI_PORT_STAT_PFC_7_RX_PKTS
+    SAI_PORT_STAT_PFC_7_RX_PKTS,
+    SAI_PORT_STAT_PAUSE_RX_PKTS,
+    SAI_PORT_STAT_PAUSE_TX_PKTS,
+    SAI_PORT_STAT_ETHER_STATS_TX_NO_ERRORS,
+    SAI_PORT_STAT_IP_IN_UCAST_PKTS,
+    SAI_PORT_STAT_ETHER_IN_PKTS_128_TO_255_OCTETS,
 };
 
 static const vector<sai_queue_stat_t> queueStatIds =
 {
     SAI_QUEUE_STAT_PACKETS,
     SAI_QUEUE_STAT_BYTES,
     SAI_QUEUE_STAT_DROPPED_PACKETS,
-    SAI_QUEUE_STAT_DROPPED_BYTES
+    SAI_QUEUE_STAT_DROPPED_BYTES,
+    SAI_QUEUE_STAT_CURR_OCCUPANCY_BYTES,
+    SAI_QUEUE_STAT_WATERMARK_BYTES,
 };
 
 static char* hostif_vlan_tag[] = {