[Mellanox] Add new SN5640 platform and HwSKU (sonic-net#3742)

- What I did
Add support for Mellanox SN5640 new platform and hwSKUs

- How I did it
Add new files and folders to support the new platform and modified relevant existing files

- How to verify it
Install image with the change on Mellanox SN5640 setup and run tests

Author: noaOrMlnx

generic_config_updater/field_operation_validators.py

@@ -36,6 +36,7 @@ def get_asic_name():
             spc2_hwskus = asic_mapping["mellanox_asics"]["spc2"]
             spc3_hwskus = asic_mapping["mellanox_asics"]["spc3"]
             spc4_hwskus = asic_mapping["mellanox_asics"]["spc4"]
+            spc5_hwskus = asic_mapping["mellanox_asics"]["spc5"]
             if hwsku.lower() in [spc1_hwsku.lower() for spc1_hwsku in spc1_hwskus]:
                 asic = "spc1"
                 return asic
@@ -48,6 +49,9 @@ def get_asic_name():
             if hwsku.lower() in [spc4_hwsku.lower() for spc4_hwsku in spc4_hwskus]:
                 asic = "spc4"
                 return asic
+            if hwsku.lower() in [spc5_hwsku.lower() for spc5_hwsku in spc5_hwskus]:
+                asic = "spc5"
+                return asic
         if asic_type == 'broadcom' or asic_type == 'vs':
             broadcom_asics = asic_mapping["broadcom_asics"]
             for asic_shorthand, hwskus in broadcom_asics.items():

generic_config_updater/gcu_field_operation_validators.conf.json

@@ -23,7 +23,7 @@
                 "spc3": [ "ACS-MSN4700", "ACS-MSN4600", "ACS-MSN4600C", "ACS-MSN4410", "ACS-SN4280", "Mellanox-SN4600C-D112C8", "Mellanox-SN4600C-C64", "Mellanox-SN4700-O8C48", "Mellanox-SN4600C-D100C12S2", "Mellanox-SN4600C-D48C40","Mellanox-SN4700-O32","Mellanox-SN4700-V64",
                           "Mellanox-SN4700-A96C8V8", "Mellanox-SN4700-C128", "Mellanox-SN4700-O28", "Mellanox-SN4700-O8V48", "Mellanox-SN4700-V48C32", "Mellanox-SN4280-O28"],
                 "spc4": [ "ACS-SN5600", "Mellanox-SN5600-O128", "Mellanox-SN5600-V256", "Mellanox-SN5600-C256S1", "ACS-SN5400", "Mellanox-SN5600-C224O8", "Mellanox-SN5610N-C256S2", "Mellanox-SN5610N-C224O8" ],
-                "spc5": ["ACS-SN5640"]
+                "spc5": ["ACS-SN5640", "Mellanox-SN5640-C512S2", "Mellanox-SN5640-C448O16" ]
             },
             "broadcom_asics": {
                 "th": [ "Force10-S6100", "Arista-7060CX-32S-C32", "Arista-7060CX-32S-C32-T1", "Arista-7060CX-32S-D48C8", "Celestica-DX010-C32", "Seastone-DX010" ],

tests/generic_config_updater/field_operation_validator_test.py

@@ -425,6 +425,14 @@ def test_get_asic_spc4(self, mock_popen, mock_get_sonic_version_info):
         mock_popen.return_value.communicate.return_value = ["Mellanox-SN2700-A1", 0]
         self.assertEqual(fov.get_asic_name(), "spc1")
 
+    @patch('sonic_py_common.device_info.get_sonic_version_info')
+    @patch('subprocess.Popen')
+    def test_get_asic_spc5(self, mock_popen, mock_get_sonic_version_info):
+        mock_get_sonic_version_info.return_value = {'asic_type': 'mellanox'}
+        mock_popen.return_value = mock.Mock()
+        mock_popen.return_value.communicate.return_value = ["Mellanox-SN5640-C512S2", 0]
+        self.assertEqual(fov.get_asic_name(), "spc5")
+
     @patch('sonic_py_common.device_info.get_sonic_version_info')
     @patch('subprocess.Popen')
     def test_get_asic_th(self, mock_popen, mock_get_sonic_version_info):