Fix port mapping for new 4280 hwskus (sonic-net#18802)

Signed-off-by: Prabhat Aravind <[email protected]>

Author: prabhataravind

ansible/module_utils/port_utils.py

@@ -409,6 +409,24 @@ def get_port_alias_to_name_map(hwsku, asic_name=None):
             for i in range(1, 33):
                 port_alias_to_name_map["etp%d" % i] = "Ethernet%d" % idx
                 idx += 8
+        elif hwsku in ["Mellanox-SN4280-O8C40", "Mellanox-SN4280-O8V40", "Mellanox-SN4280-C48"]:
+            idx = 0
+            for i in range(1, 13):
+                port_alias_to_name_map["etp%da" % i] = "Ethernet%d" % idx
+                idx += 4
+                port_alias_to_name_map["etp%db" % i] = "Ethernet%d" % idx
+                idx += 4
+            for i in range(13, 21):
+                port_alias_to_name_map["etp%d" % i] = "Ethernet%d" % idx
+                idx += 8
+            for i in range(21, 29):
+                port_alias_to_name_map["etp%da" % i] = "Ethernet%d" % idx
+                idx += 4
+                port_alias_to_name_map["etp%db" % i] = "Ethernet%d" % idx
+                idx += 4
+            for i in range(29, 33):
+                port_alias_to_name_map["etp%d" % i] = "Ethernet%d" % idx
+                idx += 8
         elif hwsku == "Mellanox-SN5600-V256":
             split_alias_list = ["a", "b", "c", "d"]
             for i in range(1, 65):