Provide reseat command

Some chassis managers implement a reseat function, provide access to
this capability with a high level API.

Change-Id: Ie7bbedc34236c95e43b790677b9e637cda893e0a

pyghmi/ipmi/command.py

@@ -250,6 +250,18 @@ class Command(object):
                         'persistent': persistent,
                         'uefimode': uefimode}
 
+    def reseat_bay(self, bay):
+        """Request the reseat of a bay
+
+        Request the enclosure manager to reseat the system in a particular
+        bay.
+
+        :param bay: The bay identifier to reseat
+        :return:
+        """
+        self.oem_init()
+        self._oem.reseat_bay(bay)
+
     def set_power(self, powerstate, wait=False):
         """Request power state change (helper)
 

pyghmi/ipmi/oem/generic.py

@@ -202,6 +202,10 @@ class OEMHandler(object):
         raise exc.UnsupportedFunctionality(
             'Firmware update not supported on this platform')
 
+    def reseat_bay(self, bay):
+        raise exc.UnsupportedFunctionality(
+            'Bay reseat not supported on this platform')
+
     def get_graphical_console(self):
         """Get graphical console launcher"""
         return ()

pyghmi/ipmi/oem/lenovo/handler.py

@@ -247,6 +247,11 @@ class OEMHandler(generic.OEMHandler):
                 event['component_type_id'] == 13):
             event['component'] += ' {0}'.format(evdata[1] & 0b11111)
 
+    def reseat_bay(self, bay):
+        if self.is_fpc:
+            return self.smmhandler.reseat_bay(bay)
+        return super(OEMHandler, self).reseat_bay(bay)
+
     def get_ntp_enabled(self):
         if self.has_tsm:
             ntpres = self.ipmicmd.xraw_command(netfn=0x32, command=0xa7)

pyghmi/ipmi/oem/lenovo/nextscale.py

@@ -240,6 +240,10 @@ class SMMClient(object):
         self.password = ipmicmd.ipmi_session.password
         self._wc = None
 
+    def reseat_bay(self, bay):
+        self.ipmicmd.xraw_command(netfn=0x32, command=0xa4,
+                                  data=[int(bay), 2])
+
     def process_fru(self, fru):
         # TODO(jjohnson2): can also get EIOM, SMM, and riser data if warranted
         fru['Serial Number'] = self.ipmicmd.xraw_command(