Update the PR according to the discussion happened

sonic_platform_base/module_base.py

@@ -52,6 +52,8 @@ class ModuleBase(device_base.DeviceBase):
     MODULE_REBOOT_FPGA_COMPLEX = "FPGA"
     # Module reboot type to reboot DPU
     MODULE_REBOOT_DPU = "DPU"
+    # Module reboot type to reboot SMART SWITCH
+    MODULE_REBOOT_SMARTSWITCH = "SMARTSWITCH"
 
     def __init__(self):
         # List of ComponentBase-derived objects representing all components
@@ -168,10 +170,12 @@ def reboot(self, reboot_type):
         Args:
             reboot_type: A string, the type of reboot requested from one of the
             predefined reboot types: MODULE_REBOOT_DEFAULT, MODULE_REBOOT_CPU_COMPLEX,
-            MODULE_REBOOT_FPGA_COMPLEX or MODULE_REBOOT_DPU
+            MODULE_REBOOT_FPGA_COMPLEX, MODULE_REBOOT_DPU or MODULE_REBOOT_SMARTSWITCH
 
             MODULE_REBOOT_DPU is only applicable for smartswitch chassis.
 
+            MODULE_REBOOT_SMARTSWITCH is only applicable for smartswitch chassis.
+
         Returns:
             bool: True if the request has been issued successfully, False if not
         """
@@ -280,6 +284,15 @@ def pci_detach(self):
         """
         raise NotImplementedError
 
+    def pci_reattach(self):
+        """
+        Rescans and reconnects the PCI device.
+
+        Returns: True once the PCI is successfully reconnected.
+        Returns False, if PCI rescan fails or specified device is not found.
+        """
+        raise NotImplementedError
+
     ##############################################
     # Component methods
     ##############################################

tests/module_base_test.py

@@ -10,6 +10,7 @@ def test_module_base(self):
                 [module.get_state_info],
                 [module.get_bus_info],
                 [module.pci_detach],
+                [module.pci_reattach],
             ]
 
         for method in not_implemented_methods: