Add IxNextgen API for creating Vlans configurations

New IxNextgen API allows to configure Vlans(vlan id, priority, tp id)
to Ethernet layer of device group.

JIRA: YARDSTICK-1420

Change-Id: I1c5fe37b5beb11daf1c539933fcad60832553bb9
Signed-off-by: Serhiy Pshyk <serhiyx.pshyk@intel.com>

2 files changed, 109 insertions, 0 deletions

diff --git a/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py b/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py
index 1428c38f4..12f081dc6 100644
--- a/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py
+++ b/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py
@@ -50,6 +50,20 @@ TRAFFIC_STATUS_STOPPED = 'stopped'
 SUPPORTED_PROTO = [PROTO_UDP]
 
 
+class Vlan(object):
+    def __init__(self,
+                 vlan_id, vlan_id_step=None, vlan_id_direction='increment',
+                 prio=None, prio_step=None, prio_direction='increment',
+                 tp_id=None):
+        self.vlan_id = vlan_id
+        self.vlan_id_step = vlan_id_step
+        self.vlan_id_direction = vlan_id_direction
+        self.prio = prio
+        self.prio_step = prio_step
+        self.prio_direction = prio_direction
+        self.tp_id = tp_id
+
+
 # NOTE(ralonsoh): this pragma will be removed in the last patch of this series
 class IxNextgen(object):  # pragma: no cover
 
@@ -618,6 +632,60 @@ class IxNextgen(object):  # pragma: no cover
         self.ixnet.commit()
         return obj
 
+    def _create_vlans(self, ethernet, count):
+        self.ixnet.setMultiAttribute(ethernet, '-useVlans', 'true')
+        self.ixnet.setMultiAttribute(ethernet, '-vlanCount', count)
+        self.ixnet.commit()
+
+    def _configure_vlans(self, ethernet, vlans):
+        vlans_obj = self.ixnet.getList(ethernet, 'vlan')
+        for i, vlan_obj in enumerate(vlans_obj):
+            if vlans[i].vlan_id_step is not None:
+                vlan_id_obj = self.ixnet.getAttribute(vlan_obj, '-vlanId')
+                self.ixnet.setMultiAttribute(vlan_id_obj, '-clearOverlays',
+                                             'true', '-pattern', 'counter')
+                vlan_id_counter = self.ixnet.add(vlan_id_obj, 'counter')
+                self.ixnet.setMultiAttribute(vlan_id_counter, '-start',
+                                             vlans[i].vlan_id, '-step',
+                                             vlans[i].vlan_id_step,
+                                             '-direction',
+                                             vlans[i].vlan_id_direction)
+            else:
+                vlan_id_obj = self.ixnet.getAttribute(vlan_obj, '-vlanId')
+                self.ixnet.setMultiAttribute(vlan_id_obj + '/singleValue',
+                                             '-value', vlans[i].vlan_id)
+
+            if vlans[i].prio_step is not None:
+                prio_obj = self.ixnet.getAttribute(vlan_obj, '-priority')
+                self.ixnet.setMultiAttribute(prio_obj, '-clearOverlays', 'true',
+                                             '-pattern', 'counter')
+                prio_counter = self.ixnet.add(prio_obj, 'counter')
+                self.ixnet.setMultiAttribute(prio_counter,
+                                        '-start', vlans[i].prio,
+                                        '-step', vlans[i].prio_step,
+                                        '-direction', vlans[i].prio_direction)
+            elif vlans[i].prio is not None:
+                prio_obj = self.ixnet.getAttribute(vlan_obj, '-priority')
+                self.ixnet.setMultiAttribute(prio_obj + '/singleValue',
+                                             '-value', vlans[i].prio)
+
+            if vlans[i].tp_id is not None:
+                tp_id_obj = self.ixnet.getAttribute(vlan_obj, '-tpid')
+                self.ixnet.setMultiAttribute(tp_id_obj + '/singleValue',
+                                             '-value', vlans[i].tp_id)
+
+        self.ixnet.commit()
+
+    def add_vlans(self, ethernet, vlans):
+        log.debug("add_vlans: ethernet='%s'", ethernet)
+
+        if vlans is None or len(vlans) == 0:
+            raise RuntimeError(
+                "Invalid 'vlans' argument. Expected list of Vlan instances.")
+
+        self._create_vlans(ethernet, len(vlans))
+        self._configure_vlans(ethernet, vlans)
+
     def add_ipv4(self, ethernet, name='',
                  addr=None, addr_step=None, addr_direction='increment',
                  prefix=None, prefix_step=None, prefix_direction='increment',
diff --git a/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py b/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py
index 3077e3c17..4e3199a83 100644
--- a/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py
+++ b/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py
@@ -212,6 +212,47 @@ class TestIxNextgen(unittest.TestCase):
             'obj', '-name', 'ethernet 1')
         self.ixnet_gen.ixnet.commit.assert_called_once()
 
+    def test_add_vlans_single(self):
+        obj = 'ethernet'
+        self.ixnet_gen.ixnet.getAttribute.return_value = 'attr'
+        self.ixnet_gen.ixnet.getList.return_value = ['vlan1', 'vlan2']
+        vlan1 = ixnet_api.Vlan(vlan_id=100, tp_id='ethertype88a8', prio=2)
+        vlan2 = ixnet_api.Vlan(vlan_id=101, tp_id='ethertype88a8', prio=3)
+        self.ixnet_gen.add_vlans(obj, [vlan1, vlan2])
+        self.ixnet_gen.ixnet.setMultiAttribute.assert_any_call('ethernet',
+                                                               '-vlanCount', 2)
+        self.ixnet_gen.ixnet.setMultiAttribute.assert_any_call('attr/singleValue',
+                                                               '-value', 100)
+        self.ixnet_gen.ixnet.setMultiAttribute.assert_any_call('attr/singleValue',
+                                                               '-value', 101)
+        self.ixnet_gen.ixnet.setMultiAttribute.assert_any_call('attr/singleValue',
+                                                               '-value', 2)
+        self.ixnet_gen.ixnet.setMultiAttribute.assert_any_call('attr/singleValue',
+                                                               '-value', 3)
+        self.ixnet_gen.ixnet.setMultiAttribute.assert_any_call(
+            'attr/singleValue', '-value', 'ethertype88a8')
+        self.assertEqual(self.ixnet.commit.call_count, 2)
+
+    def test_add_vlans_increment(self):
+        obj = 'ethernet'
+        self.ixnet_gen.ixnet.add.return_value = 'obj'
+        self.ixnet_gen.ixnet.getAttribute.return_value = 'attr'
+        self.ixnet_gen.ixnet.getList.return_value = ['vlan1']
+        vlan = ixnet_api.Vlan(vlan_id=100, vlan_id_step=1, prio=3, prio_step=2)
+        self.ixnet_gen.add_vlans(obj, [vlan])
+        self.ixnet.setMultiAttribute.assert_any_call('obj', '-start', 100,
+                                                     '-step', 1,
+                                                     '-direction', 'increment')
+        self.ixnet.setMultiAttribute.assert_any_call('obj', '-start', 3,
+                                                     '-step', 2,
+                                                     '-direction', 'increment')
+
+        self.assertEqual(self.ixnet.commit.call_count, 2)
+
+    def test_add_vlans_invalid(self):
+        vlans = []
+        self.assertRaises(RuntimeError, self.ixnet_gen.add_vlans, 'obj', vlans)
+
     def test_add_ipv4(self):
         self.ixnet_gen.ixnet.add.return_value = 'obj'
         self.ixnet_gen.add_ipv4('ethernet 1', name='ipv4 1')