VOL-951: Make OpenOLT adapter pep8

Change-Id: I0fb8ca6e7da4dd83b0149628b5fe57f140d62acf
diff --git a/voltha/adapters/openolt/openolt_flow_mgr.py b/voltha/adapters/openolt/openolt_flow_mgr.py
index 367525e..063101b 100644
--- a/voltha/adapters/openolt/openolt_flow_mgr.py
+++ b/voltha/adapters/openolt/openolt_flow_mgr.py
@@ -14,21 +14,20 @@
 # limitations under the License.
 #
 
-import time
-
 from voltha.protos.openflow_13_pb2 import OFPXMC_OPENFLOW_BASIC
 import voltha.core.flow_decomposer as fd
 import openolt_platform as platform
 from voltha.adapters.openolt.protos import openolt_pb2
 
-HSIA_FLOW_INDEX = 0 # FIXME
-DHCP_FLOW_INDEX = 1 # FIXME
-EAPOL_FLOW_INDEX = 2 # FIXME
-EAPOL_DOWNLINK_FLOW_INDEX = 3 # FIXME
+HSIA_FLOW_INDEX = 0  # FIXME
+DHCP_FLOW_INDEX = 1  # FIXME
+EAPOL_FLOW_INDEX = 2  # FIXME
+EAPOL_DOWNLINK_FLOW_INDEX = 3  # FIXME
 
 # FIXME - see also BRDCM_DEFAULT_VLAN in broadcom_onu.py
 DEFAULT_MGMT_VLAN = 4091
 
+
 class OpenOltFlowMgr(object):
 
     def __init__(self, log, stub):
@@ -47,43 +46,43 @@
             if field.type == fd.ETH_TYPE:
                 classifier_info['eth_type'] = field.eth_type
                 self.log.debug('field-type-eth-type',
-                        eth_type=classifier_info['eth_type'])
+                               eth_type=classifier_info['eth_type'])
             elif field.type == fd.IP_PROTO:
                 classifier_info['ip_proto'] = field.ip_proto
                 self.log.debug('field-type-ip-proto',
-                        ip_proto=classifier_info['ip_proto'])
+                               ip_proto=classifier_info['ip_proto'])
             elif field.type == fd.IN_PORT:
                 classifier_info['in_port'] = field.port
                 self.log.debug('field-type-in-port',
-                        in_port=classifier_info['in_port'])
+                               in_port=classifier_info['in_port'])
             elif field.type == fd.VLAN_VID:
                 classifier_info['vlan_vid'] = field.vlan_vid & 0xfff
                 self.log.debug('field-type-vlan-vid',
-                        vlan=classifier_info['vlan_vid'])
+                               vlan=classifier_info['vlan_vid'])
             elif field.type == fd.VLAN_PCP:
                 classifier_info['vlan_pcp'] = field.vlan_pcp
                 self.log.debug('field-type-vlan-pcp',
-                        pcp=classifier_info['vlan_pcp'])
+                               pcp=classifier_info['vlan_pcp'])
             elif field.type == fd.UDP_DST:
                 classifier_info['udp_dst'] = field.udp_dst
                 self.log.debug('field-type-udp-dst',
-                        udp_dst=classifier_info['udp_dst'])
+                               udp_dst=classifier_info['udp_dst'])
             elif field.type == fd.UDP_SRC:
                 classifier_info['udp_src'] = field.udp_src
                 self.log.debug('field-type-udp-src',
-                        udp_src=classifier_info['udp_src'])
+                               udp_src=classifier_info['udp_src'])
             elif field.type == fd.IPV4_DST:
                 classifier_info['ipv4_dst'] = field.ipv4_dst
                 self.log.debug('field-type-ipv4-dst',
-                        ipv4_dst=classifier_info['ipv4_dst'])
+                               ipv4_dst=classifier_info['ipv4_dst'])
             elif field.type == fd.IPV4_SRC:
                 classifier_info['ipv4_src'] = field.ipv4_src
                 self.log.debug('field-type-ipv4-src',
-                        ipv4_dst=classifier_info['ipv4_src'])
+                               ipv4_dst=classifier_info['ipv4_src'])
             elif field.type == fd.METADATA:
                 classifier_info['metadata'] = field.table_metadata
                 self.log.debug('field-type-metadata',
-                        metadata=classifier_info['metadata'])
+                               metadata=classifier_info['metadata'])
             else:
                 raise NotImplementedError('field.type={}'.format(
                     field.type))
@@ -92,8 +91,8 @@
             if action.type == fd.OUTPUT:
                 action_info['output'] = action.output.port
                 self.log.debug('action-type-output',
-                        output=action_info['output'],
-                        in_port=classifier_info['in_port'])
+                               output=action_info['output'],
+                               in_port=classifier_info['in_port'])
             elif action.type == fd.POP_VLAN:
                 action_info['pop_vlan'] = True
                 self.log.debug('action-type-pop-vlan', in_port=in_port)
@@ -101,34 +100,37 @@
                 action_info['push_vlan'] = True
                 action_info['tpid'] = action.push.ethertype
                 self.log.debug('action-type-push-vlan',
-                        push_tpid=action_info['tpid'], in_port=in_port)
+                               push_tpid=action_info['tpid'], in_port=in_port)
                 if action.push.ethertype != 0x8100:
                     self.log.error('unhandled-tpid',
-                           ethertype=action.push.ethertype)
+                                   ethertype=action.push.ethertype)
             elif action.type == fd.SET_FIELD:
                 # action_info['action_type'] = 'set_field'
                 _field = action.set_field.field.ofb_field
                 assert (action.set_field.field.oxm_class ==
                         OFPXMC_OPENFLOW_BASIC)
                 self.log.debug('action-type-set-field',
-                        field=_field, in_port=in_port)
+                               field=_field, in_port=in_port)
                 if _field.type == fd.VLAN_VID:
                     self.log.debug('set-field-type-vlan-vid',
-                            vlan_vid=_field.vlan_vid & 0xfff)
+                                   vlan_vid=_field.vlan_vid & 0xfff)
                     action_info['vlan_vid'] = (_field.vlan_vid & 0xfff)
                 else:
                     self.log.error('unsupported-action-set-field-type',
-                            field_type=_field.type)
+                                   field_type=_field.type)
             else:
                 self.log.error('unsupported-action-type',
-                        action_type=action.type, in_port=in_port)
+                               action_type=action.type, in_port=in_port)
 
         # FIXME - Why ignore downstream flows?
         if is_down_stream is False:
-            intf_id = platform.intf_id_from_uni_port_num(classifier_info['in_port'])
-            onu_id = platform.onu_id_from_port_num(classifier_info['in_port'])
-            self.divide_and_add_flow(intf_id, onu_id, classifier_info, action_info)
-        #else:
+            intf_id = platform.intf_id_from_uni_port_num(
+                classifier_info['in_port'])
+            onu_id = platform.onu_id_from_port_num(
+                classifier_info['in_port'])
+            self.divide_and_add_flow(intf_id, onu_id, classifier_info,
+                                     action_info)
+        # else:
         #    self.log.info('ignore downstream flow', flow=flow,
         #            classifier_info=classifier_info,
         #            action_info=action_info)
@@ -144,8 +146,9 @@
             elif classifier['ip_proto'] == 2:
                 self.log.debug('igmp flow add ignored')
             else:
-                self.log.debug("Invalid-Classifier-to-handle", classifier=classifier,
-                        action=action)
+                self.log.debug("Invalid-Classifier-to-handle",
+                               classifier=classifier,
+                               action=action)
         elif 'eth_type' in classifier:
             if classifier['eth_type'] == 0x888e:
                 self.log.debug('eapol flow add')
@@ -153,8 +156,9 @@
         elif 'push_vlan' in action:
             self.add_data_flow(intf_id, onu_id, classifier, action)
         else:
-            self.log.debug('Invalid-flow-type-to-handle', classifier=classifier,
-                    action=action)
+            self.log.debug('Invalid-flow-type-to-handle',
+                           classifier=classifier,
+                           action=action)
 
     def add_data_flow(self, intf_id, onu_id, uplink_classifier, uplink_action):
 
@@ -173,27 +177,30 @@
         # will take care of handling all the p bits.
         # We need to revisit when mulitple gem port per p bits is needed.
         self.add_hsia_flow(intf_id, onu_id, uplink_classifier, uplink_action,
-                downlink_classifier, downlink_action, HSIA_FLOW_INDEX)
+                           downlink_classifier, downlink_action,
+                           HSIA_FLOW_INDEX)
 
     def add_hsia_flow(self, intf_id, onu_id, uplink_classifier, uplink_action,
-                downlink_classifier, downlink_action, hsia_id):
+                      downlink_classifier, downlink_action, hsia_id):
 
         gemport_id = platform.mk_gemport_id(onu_id)
         flow_id = platform.mk_flow_id(intf_id, onu_id, hsia_id)
 
-        self.log.debug('add upstream flow', onu_id=onu_id, classifier=uplink_classifier,
-                action=uplink_action, gemport_id=gemport_id, flow_id=flow_id)
+        self.log.debug('add upstream flow', onu_id=onu_id,
+                       classifier=uplink_classifier, action=uplink_action,
+                       gemport_id=gemport_id, flow_id=flow_id)
 
         flow = openolt_pb2.Flow(
-                onu_id=onu_id, flow_id=flow_id, flow_type="upstream",
-                access_intf_id=intf_id, gemport_id=gemport_id,
-                classifier=self.mk_classifier(uplink_classifier), action=self.mk_action(uplink_action))
-
+            onu_id=onu_id, flow_id=flow_id, flow_type="upstream",
+            access_intf_id=intf_id, gemport_id=gemport_id,
+            classifier=self.mk_classifier(uplink_classifier),
+            action=self.mk_action(uplink_action))
 
         self.stub.FlowAdd(flow)
 
         self.log.debug('add downstream flow', classifier=downlink_classifier,
-                action=downlink_action, gemport_id=gemport_id, flow_id=flow_id)
+                       action=downlink_action, gemport_id=gemport_id,
+                       flow_id=flow_id)
 
         flow = openolt_pb2.Flow(
                 onu_id=onu_id, flow_id=flow_id, flow_type="downstream",
@@ -216,18 +223,20 @@
         flow_id = platform.mk_flow_id(intf_id, onu_id, DHCP_FLOW_INDEX)
 
         upstream_flow = openolt_pb2.Flow(
-                onu_id=onu_id, flow_id=flow_id, flow_type="upstream",
-                access_intf_id=intf_id, gemport_id=gemport_id,
-                classifier=self.mk_classifier(classifier), action=self.mk_action(action))
+            onu_id=onu_id, flow_id=flow_id, flow_type="upstream",
+            access_intf_id=intf_id, gemport_id=gemport_id,
+            classifier=self.mk_classifier(classifier),
+            action=self.mk_action(action))
 
         self.stub.FlowAdd(upstream_flow)
 
     def add_eapol_flow(self, intf_id, onu_id, uplink_classifier, uplink_action,
-            uplink_eapol_id=EAPOL_FLOW_INDEX,
-            downlink_eapol_id=EAPOL_DOWNLINK_FLOW_INDEX,
-            vlan_id=DEFAULT_MGMT_VLAN):
+                       uplink_eapol_id=EAPOL_FLOW_INDEX,
+                       downlink_eapol_id=EAPOL_DOWNLINK_FLOW_INDEX,
+                       vlan_id=DEFAULT_MGMT_VLAN):
 
-        self.log.debug('add eapol flow', classifier=uplink_classifier, action=uplink_action)
+        self.log.debug('add eapol flow', classifier=uplink_classifier,
+                       action=uplink_action)
 
         downlink_classifier = dict(uplink_classifier)
         downlink_action = dict(uplink_action)
@@ -242,22 +251,24 @@
         uplink_action['trap_to_host'] = True
 
         upstream_flow = openolt_pb2.Flow(
-                onu_id=onu_id, flow_id=uplink_flow_id, flow_type="upstream",
-                access_intf_id=intf_id,gemport_id=gemport_id,
-                classifier=self.mk_classifier(uplink_classifier), action=self.mk_action(uplink_action))
+            onu_id=onu_id, flow_id=uplink_flow_id, flow_type="upstream",
+            access_intf_id=intf_id, gemport_id=gemport_id,
+            classifier=self.mk_classifier(uplink_classifier),
+            action=self.mk_action(uplink_action))
 
         self.stub.FlowAdd(upstream_flow)
 
         # Add Downstream EAPOL Flow.
-        downlink_flow_id = platform.mk_flow_id(intf_id, onu_id, downlink_eapol_id)
+        downlink_flow_id = platform.mk_flow_id(intf_id, onu_id,
+                                               downlink_eapol_id)
         downlink_classifier['pkt_tag_type'] = 'single_tag'
         downlink_classifier['vlan_vid'] = vlan_id
 
         downstream_flow = openolt_pb2.Flow(
-                onu_id=onu_id, flow_id=downlink_flow_id, flow_type="downstream",
-                access_intf_id=intf_id, gemport_id=gemport_id,
-                classifier=self.mk_classifier(downlink_classifier), action=self.mk_action(downlink_action))
-
+            onu_id=onu_id, flow_id=downlink_flow_id, flow_type="downstream",
+            access_intf_id=intf_id, gemport_id=gemport_id,
+            classifier=self.mk_classifier(downlink_classifier),
+            action=self.mk_action(downlink_action))
 
         self.stub.FlowAdd(downstream_flow)
 
@@ -298,15 +309,15 @@
     def mk_action(self, action_info):
         action = openolt_pb2.Action()
 
-	if 'pop_vlan' in action_info:
-	    action.o_vid = action_info['vlan_vid']
+        if 'pop_vlan' in action_info:
+            action.o_vid = action_info['vlan_vid']
             action.cmd.remove_outer_tag = True
-	elif 'push_vlan' in action_info:
-	    action.o_vid = action_info['vlan_vid']
+        elif 'push_vlan' in action_info:
+            action.o_vid = action_info['vlan_vid']
             action.cmd.add_outer_tag = True
-	elif 'trap_to_host' in action_info:
+        elif 'trap_to_host' in action_info:
             action.cmd.trap_to_host = True
-	else:
-	    self.log.info('Invalid-action-field')
-	    return
+        else:
+            self.log.info('Invalid-action-field')
+            return
         return action