Fixes show interface transceiver info Ethernet0 command failure for CMIS SFP. (sonic-net#3795)

* Fix: show interface transceiver info Ethernet0 command fails for CMIS SFP

* Fix variable name error.

Author: az-pz

scripts/sfpshow

@@ -19,6 +19,7 @@ from utilities_common.sfp_helper import covert_application_advertisement_to_outp
 from utilities_common.sfp_helper import (
         QSFP_DATA_MAP,
         CMIS_DATA_MAP,
+        C_CMIS_DATA_MAP,
         QSFP_STATUS_MAP,
         CMIS_STATUS_MAP,
         CCMIS_STATUS_MAP,
@@ -308,8 +309,15 @@ class SFPShow(object):
         indent = ' ' * 8
         output = ''
         is_sfp_cmis = 'cmis_rev' in sfp_info_dict
+        is_sfp_c_cmis = 'supported_max_tx_power' in sfp_info_dict
+
+        if is_sfp_c_cmis:
+            data_map = C_CMIS_DATA_MAP
+        elif is_sfp_cmis:
+            data_map = CMIS_DATA_MAP
+        else:
+            data_map = QSFP_DATA_MAP
 
-        data_map = CMIS_DATA_MAP if is_sfp_cmis else QSFP_DATA_MAP
         sorted_data_map_keys = sorted(data_map, key=data_map.get)
         for key in sorted_data_map_keys:
             if key == 'cable_type':

utilities_common/sfp_helper.py

@@ -35,10 +35,6 @@
     'cmis_rev': 'CMIS Rev',
     'active_firmware': 'Active Firmware',
     'inactive_firmware': 'Inactive Firmware',
-    'supported_max_tx_power': 'Supported Max TX Power',
-    'supported_min_tx_power': 'Supported Min TX Power',
-    'supported_max_laser_freq': 'Supported Max Laser Frequency',
-    'supported_min_laser_freq': 'Supported Min Laser Frequency',
     'e1_active_firmware': 'E1 Active Firmware',
     'e1_inactive_firmware': 'E1 Inactive Firmware',
     'e1_server_firmware': 'E1 Server Firmware',
@@ -47,7 +43,15 @@
     'e2_server_firmware': 'E2 Server Firmware'
 }
 
+C_CMIS_DELTA_DATA_MAP = {
+    'supported_max_tx_power': 'Supported Max TX Power',
+    'supported_min_tx_power': 'Supported Min TX Power',
+    'supported_max_laser_freq': 'Supported Max Laser Frequency',
+    'supported_min_laser_freq': 'Supported Min Laser Frequency',
+}
+
 CMIS_DATA_MAP = {**QSFP_DATA_MAP, **QSFP_CMIS_DELTA_DATA_MAP}
+C_CMIS_DATA_MAP = {**CMIS_DATA_MAP, **C_CMIS_DELTA_DATA_MAP}
 
 # Common fileds for all types:
 # For non-CMIS, only first 1 or 4 lanes are applicable.