update pice_base.py

sonic_platform_base/pcie_base.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+#
+# pcie_base.py
+#
+# Abstract base class for implementing platform-specific
+#  PCIE functionality for SONiC
+#
+
+try:
+    import abc
+except ImportError as e:
+    raise ImportError (str(e) + " - required module not found")
+
+class PcieBase(object):
+    __metaclass__ = abc.ABCMeta
+
+    @abc.abstractmethod
+    def get_pcie_speed(self,device):
+         """
+        Retrieves PCIE speed for the given device
+
+         Returns:
+            A string holding PCIE speed with specific device
+        """  
+
+        raise NotImplementedError
+
+
+
+    def get_pcie_id(self,device):
+
+          """
+        Retrieves PCIE id for the given device
+
+         Returns:
+            A string holding PCIE id with specific device
+        """  
+        raise NotImplementedError