Merge "[QoS] Add rule type packet per second (pps)"

18 files changed, 499 insertions, 30 deletions

diff --git a/neutron/db/migration/alembic_migrations/versions/EXPAND_HEAD b/neutron/db/migration/alembic_migrations/versions/EXPAND_HEAD
index d13d55f476..c31bc14c10 100644
--- a/neutron/db/migration/alembic_migrations/versions/EXPAND_HEAD
+++ b/neutron/db/migration/alembic_migrations/versions/EXPAND_HEAD
@@ -1 +1 @@
-8df53b0d2c0e
+1bb3393de75d
diff --git a/neutron/db/migration/alembic_migrations/versions/xena/expand/1bb3393de75d_add_qos_pps_rule.py b/neutron/db/migration/alembic_migrations/versions/xena/expand/1bb3393de75d_add_qos_pps_rule.py
new file mode 100644
index 0000000000..f84d7adc58
--- /dev/null
+++ b/neutron/db/migration/alembic_migrations/versions/xena/expand/1bb3393de75d_add_qos_pps_rule.py
@@ -0,0 +1,55 @@
+# Copyright (c) 2021 China Unicom Cloud Data Co.,Ltd.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#
+
+"""add qos policy rule Packet Rate Limit
+
+Revision ID: 1bb3393de75d
+Revises: 8df53b0d2c0e
+Create Date: 2021-01-22 17:00:03.085196
+
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+from neutron_lib import constants
+
+# revision identifiers, used by Alembic.
+revision = '1bb3393de75d'
+down_revision = '8df53b0d2c0e'
+
+direction_enum = sa.Enum(
+    constants.EGRESS_DIRECTION, constants.INGRESS_DIRECTION,
+    name='qos_packet_rate_limit_rules_directions'
+)
+
+
+def upgrade():
+    op.create_table(
+        'qos_packet_rate_limit_rules',
+        sa.Column('id', sa.String(36), primary_key=True),
+        sa.Column('qos_policy_id',
+                  sa.String(length=36),
+                  sa.ForeignKey('qos_policies.id', ondelete='CASCADE'),
+                  nullable=False, index=True),
+        sa.Column('max_kpps', sa.Integer()),
+        sa.Column('max_burst_kpps', sa.Integer()),
+        sa.Column('direction', direction_enum,
+                  nullable=False,
+                  server_default=constants.EGRESS_DIRECTION),
+        sa.UniqueConstraint('qos_policy_id', 'direction',
+            name='qos_packet_rate_limit_rules0qos_policy_id0direction')
+    )
diff --git a/neutron/db/qos/models.py b/neutron/db/qos/models.py
index 8a64e6cd0b..7d2345fc11 100644
--- a/neutron/db/qos/models.py
+++ b/neutron/db/qos/models.py
@@ -192,3 +192,29 @@ class QosMinimumBandwidthRule(model_base.HasId, model_base.BASEV2):
             name='qos_minimum_bandwidth_rules0qos_policy_id0direction'),
         model_base.BASEV2.__table_args__
     )
+
+
+class QosPacketRateLimitRule(model_base.HasId, model_base.BASEV2):
+    __tablename__ = 'qos_packet_rate_limit_rules'
+    qos_policy_id = sa.Column(sa.String(36),
+                              sa.ForeignKey('qos_policies.id',
+                                            ondelete='CASCADE'),
+                              nullable=False,
+                              index=True)
+    max_kpps = sa.Column(sa.Integer)
+    max_burst_kpps = sa.Column(sa.Integer)
+    revises_on_change = ('qos_policy',)
+    qos_policy = sa.orm.relationship(QosPolicy, load_on_pending=True)
+    direction = sa.Column(
+        sa.Enum(constants.EGRESS_DIRECTION,
+                constants.INGRESS_DIRECTION,
+                name="qos_packet_rate_limit_rules_directions"),
+        default=constants.EGRESS_DIRECTION,
+        server_default=constants.EGRESS_DIRECTION,
+        nullable=False)
+    __table_args__ = (
+        sa.UniqueConstraint(
+            qos_policy_id, direction,
+            name="qos_packet_rate_limit_rules0qos_policy_id0direction"),
+        model_base.BASEV2.__table_args__
+    )
diff --git a/neutron/extensions/qos.py b/neutron/extensions/qos.py
index 7764f6615d..82f2f15d0d 100644
--- a/neutron/extensions/qos.py
+++ b/neutron/extensions/qos.py
@@ -84,9 +84,12 @@ class QoSPluginBase(service_base.ServicePluginBase, metaclass=abc.ABCMeta):
     path_prefix = apidef.API_PREFIX
 
     # The rule object type to use for each incoming rule-related request.
-    rule_objects = {'bandwidth_limit': rule_object.QosBandwidthLimitRule,
-                    'dscp_marking': rule_object.QosDscpMarkingRule,
-                    'minimum_bandwidth': rule_object.QosMinimumBandwidthRule}
+    rule_objects = {
+        'bandwidth_limit': rule_object.QosBandwidthLimitRule,
+        'dscp_marking': rule_object.QosDscpMarkingRule,
+        'minimum_bandwidth': rule_object.QosMinimumBandwidthRule,
+        'packet_rate_limit': rule_object.QosPacketRateLimitRule,
+    }
 
     # Patterns used to call method proxies for all policy-rule-specific
     # method calls (see __getattr__ docstring, below).
diff --git a/neutron/extensions/qos_pps_rule.py b/neutron/extensions/qos_pps_rule.py
new file mode 100644
index 0000000000..03ef37b094
--- /dev/null
+++ b/neutron/extensions/qos_pps_rule.py
@@ -0,0 +1,60 @@
+# Copyright (c) 2021 China Unicom Cloud Data Co.,Ltd.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from neutron_lib.api.definitions import qos_bw_minimum_ingress
+from neutron_lib.api.definitions import qos_pps_rule as apidef
+from neutron_lib.api import extensions as api_extensions
+from neutron_lib.plugins import constants
+from neutron_lib.plugins import directory
+
+from neutron.api import extensions
+from neutron.api.v2 import base
+
+COLLECTION_NAME = 'packet_rate_limit_rules'
+RESOURCE_NAME = 'packet_rate_limit_rule'
+
+# A quick align for subresource minimum bandwidth ingress direction.
+# TODO(liuyulong): Move to neutron-lib
+apidef.SUB_RESOURCE_ATTRIBUTE_MAP.update(
+    qos_bw_minimum_ingress.SUB_RESOURCE_ATTRIBUTE_MAP)
+
+
+class Qos_pps_rule(api_extensions.APIExtensionDescriptor):
+
+    api_definition = apidef
+
+    @classmethod
+    def get_resources(cls):
+        plugin = directory.get_plugin(constants.QOS)
+        params = apidef.SUB_RESOURCE_ATTRIBUTE_MAP[
+            COLLECTION_NAME]['parameters']
+        parent = apidef.SUB_RESOURCE_ATTRIBUTE_MAP[
+            COLLECTION_NAME]['parent']
+        controller = base.create_resource(
+            COLLECTION_NAME,
+            RESOURCE_NAME,
+            plugin,
+            params,
+            parent=parent,
+            allow_pagination=True,
+            allow_sorting=True)
+        exts = [
+            extensions.ResourceExtension(
+                COLLECTION_NAME,
+                controller,
+                parent,
+                attr_map=params)
+        ]
+        return exts
diff --git a/neutron/objects/qos/policy.py b/neutron/objects/qos/policy.py
index bb805873a0..bedcd2af85 100644
--- a/neutron/objects/qos/policy.py
+++ b/neutron/objects/qos/policy.py
@@ -66,7 +66,8 @@ class QosPolicy(rbac_db.NeutronRbacObject):
     # Version 1.6: Added "is_default" field
     # Version 1.7: Added floating IP bindings
     # Version 1.8: Added router gateway QoS policy bindings
-    VERSION = '1.8'
+    # Version 1.9: Added QosPacketRateLimitRule
+    VERSION = '1.9'
 
     # required by RbacNeutronMetaclass
     rbac_db_cls = QosPolicyRBAC
@@ -376,10 +377,22 @@ class QosPolicy(rbac_db.NeutronRbacObject):
         return set(bound_tenants)
 
     def obj_make_compatible(self, primitive, target_version):
+        def filter_rules(obj_names, rules):
+            return [rule for rule in rules if
+                    rule['versioned_object.name'] in obj_names]
         _target_version = versionutils.convert_version_to_tuple(target_version)
         if _target_version < (1, 8):
             raise exception.IncompatibleObjectVersion(
                 objver=target_version, objname=self.__class__.__name__)
+        names = [
+            rule_obj_impl.QosBandwidthLimitRule.obj_name(),
+            rule_obj_impl.QosDscpMarkingRule.obj_name(),
+            rule_obj_impl.QosMinimumBandwidthRule.obj_name(),
+        ]
+        if _target_version >= (1, 9):
+            names.append(rule_obj_impl.QosPacketRateLimitRule.obj_name())
+        if 'rules' in primitive and names:
+            primitive['rules'] = filter_rules(names, primitive['rules'])
 
 
 @base_db.NeutronObjectRegistry.register
diff --git a/neutron/objects/qos/rule.py b/neutron/objects/qos/rule.py
index 165c090100..049820217f 100644
--- a/neutron/objects/qos/rule.py
+++ b/neutron/objects/qos/rule.py
@@ -26,6 +26,7 @@ from oslo_versionedobjects import fields as obj_fields
 
 from neutron.db.qos import models as qos_db_model
 from neutron.objects import base
+from neutron.services.qos import constants as qos_constants
 
 DSCP_MARK = 'dscp_mark'
 
@@ -36,7 +37,7 @@ def get_rules(obj_cls, context, qos_policy_id):
         return all_rules
 
     with obj_cls.db_context_reader(context):
-        for rule_type in qos_consts.VALID_RULE_TYPES:
+        for rule_type in qos_constants.VALID_RULE_TYPES:
             rule_cls_name = 'Qos%sRule' % helpers.camelize(rule_type)
             rule_cls = getattr(sys.modules[__name__], rule_cls_name)
 
@@ -50,11 +51,12 @@ class QosRule(base.NeutronDbObject, metaclass=abc.ABCMeta):
     #         1.1: Added DscpMarkingRule
     #         1.2: Added QosMinimumBandwidthRule
     #         1.3: Added direction for BandwidthLimitRule
+    #         1.4: Added PacketRateLimitRule
     #
     # NOTE(mangelajo): versions need to be handled from the top QosRule object
     #                  because it's the only reference QosPolicy can make
     #                  to them via obj_relationships version map
-    VERSION = '1.3'
+    VERSION = '1.4'
 
     fields = {
         'id': common_types.UUIDField(),
@@ -167,3 +169,20 @@ class QosMinimumBandwidthRule(QosRule):
     duplicates_compare_fields = ['direction']
 
     rule_type = qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH
+
+
+@base.NeutronObjectRegistry.register
+class QosPacketRateLimitRule(QosRule):
+
+    db_model = qos_db_model.QosPacketRateLimitRule
+
+    fields = {
+        'max_kpps': obj_fields.IntegerField(nullable=True),
+        'max_burst_kpps': obj_fields.IntegerField(nullable=True),
+        'direction': common_types.FlowDirectionEnumField(
+            default=constants.EGRESS_DIRECTION)
+    }
+
+    duplicates_compare_fields = ['direction']
+
+    rule_type = qos_constants.RULE_TYPE_PACKET_RATE_LIMIT
diff --git a/neutron/objects/qos/rule_type.py b/neutron/objects/qos/rule_type.py
index 1a94fff09c..ced31370cd 100644
--- a/neutron/objects/qos/rule_type.py
+++ b/neutron/objects/qos/rule_type.py
@@ -13,17 +13,17 @@
 from neutron_lib.objects import common_types
 from neutron_lib.plugins import constants
 from neutron_lib.plugins import directory
-from neutron_lib.services.qos import constants as qos_consts
 from oslo_versionedobjects import fields as obj_fields
 
 from neutron.objects import base
+from neutron.services.qos import constants as qos_constants
 
 
 class RuleTypeField(obj_fields.BaseEnumField):
 
     def __init__(self, **kwargs):
         self.AUTO_TYPE = obj_fields.Enum(
-            valid_values=qos_consts.VALID_RULE_TYPES)
+            valid_values=qos_constants.VALID_RULE_TYPES)
         super(RuleTypeField, self).__init__(**kwargs)
 
 
@@ -33,7 +33,8 @@ class QosRuleType(base.NeutronObject):
     # Version 1.1: Added QosDscpMarkingRule
     # Version 1.2: Added QosMinimumBandwidthRule
     # Version 1.3: Added drivers field
-    VERSION = '1.3'
+    # Version 1.4: Added QosPacketRateLimitRule
+    VERSION = '1.4'
 
     fields = {
         'type': RuleTypeField(),
diff --git a/neutron/services/qos/constants.py b/neutron/services/qos/constants.py
new file mode 100644
index 0000000000..576c3f5441
--- /dev/null
+++ b/neutron/services/qos/constants.py
@@ -0,0 +1,22 @@
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from neutron_lib.services.qos import constants as qos_consts
+
+# TODO(liuyulong): Because of the development sequence, the rule must
+# be implemented in Neutron first. Then the following can be moved
+# to neutron-lib after neutron has the new rule.
+# Add qos rule packet rate limit
+RULE_TYPE_PACKET_RATE_LIMIT = 'packet_rate_limit'
+VALID_RULE_TYPES = qos_consts.VALID_RULE_TYPES + [RULE_TYPE_PACKET_RATE_LIMIT]
diff --git a/neutron/services/qos/drivers/manager.py b/neutron/services/qos/drivers/manager.py
index 13818065d5..494cc9b093 100644
--- a/neutron/services/qos/drivers/manager.py
+++ b/neutron/services/qos/drivers/manager.py
@@ -24,6 +24,7 @@ from neutron.api.rpc.callbacks.producer import registry as rpc_registry
 from neutron.api.rpc.callbacks import resources
 from neutron.api.rpc.handlers import resources_rpc
 from neutron.objects.qos import policy as policy_object
+from neutron.services.qos import constants as qos_constants
 
 
 LOG = logging.getLogger(__name__)
@@ -168,7 +169,7 @@ class QosServiceDriverManager(object):
         if not self._drivers:
             return []
 
-        rule_types = set(qos_consts.VALID_RULE_TYPES)
+        rule_types = set(qos_constants.VALID_RULE_TYPES)
 
         # Recalculate on every call to allow drivers determine supported rule
         # types dynamically
diff --git a/neutron/services/qos/qos_plugin.py b/neutron/services/qos/qos_plugin.py
index 3ac3e99272..7c844b7997 100644
--- a/neutron/services/qos/qos_plugin.py
+++ b/neutron/services/qos/qos_plugin.py
@@ -22,6 +22,7 @@ from neutron_lib.api.definitions import qos_bw_limit_direction
 from neutron_lib.api.definitions import qos_bw_minimum_ingress
 from neutron_lib.api.definitions import qos_default
 from neutron_lib.api.definitions import qos_port_network_policy
+from neutron_lib.api.definitions import qos_pps_rule
 from neutron_lib.api.definitions import qos_rule_type_details
 from neutron_lib.api.definitions import qos_rules_alias
 from neutron_lib.callbacks import events as callbacks_events
@@ -64,14 +65,17 @@ class QoSPlugin(qos.QoSPluginBase):
     service parameters over ports and networks.
 
     """
-    supported_extension_aliases = [qos_apidef.ALIAS,
-                                   qos_bw_limit_direction.ALIAS,
-                                   qos_default.ALIAS,
-                                   qos_rule_type_details.ALIAS,
-                                   port_resource_request.ALIAS,
-                                   qos_bw_minimum_ingress.ALIAS,
-                                   qos_rules_alias.ALIAS,
-                                   qos_port_network_policy.ALIAS]
+    supported_extension_aliases = [
+        qos_apidef.ALIAS,
+        qos_bw_limit_direction.ALIAS,
+        qos_default.ALIAS,
+        qos_rule_type_details.ALIAS,
+        port_resource_request.ALIAS,
+        qos_bw_minimum_ingress.ALIAS,
+        qos_rules_alias.ALIAS,
+        qos_port_network_policy.ALIAS,
+        qos_pps_rule.ALIAS,
+    ]
 
     __native_pagination_support = True
     __native_sorting_support = True
diff --git a/neutron/tests/unit/objects/qos/test_policy.py b/neutron/tests/unit/objects/qos/test_policy.py
index d4490bd5d1..8e1b7fb4ad 100644
--- a/neutron/tests/unit/objects/qos/test_policy.py
+++ b/neutron/tests/unit/objects/qos/test_policy.py
@@ -13,6 +13,7 @@
 import random
 from unittest import mock
 
+from neutron_lib import constants as lib_consts
 from neutron_lib.exceptions import qos as qos_exc
 from neutron_lib.services.qos import constants as qos_consts
 from oslo_utils import uuidutils
@@ -24,6 +25,7 @@ from neutron.objects import ports as port_obj
 from neutron.objects.qos import binding
 from neutron.objects.qos import policy
 from neutron.objects.qos import rule
+from neutron.services.qos import constants as q_consts
 from neutron.tests.unit.objects import test_base
 from neutron.tests.unit import testlib_api
 
@@ -32,6 +34,7 @@ RULE_OBJ_CLS = {
     qos_consts.RULE_TYPE_BANDWIDTH_LIMIT: rule.QosBandwidthLimitRule,
     qos_consts.RULE_TYPE_DSCP_MARKING: rule.QosDscpMarkingRule,
     qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH: rule.QosMinimumBandwidthRule,
+    q_consts.RULE_TYPE_PACKET_RATE_LIMIT: rule.QosPacketRateLimitRule,
 }
 
 
@@ -173,7 +176,10 @@ class QosPolicyDbObjectTestCase(test_base.BaseDbObjectTestCase,
                         for rule_type in rule_type):
             rule_fields = self.get_random_object_fields(obj_cls=obj_cls)
             rule_fields['qos_policy_id'] = policy_obj.id
-            if (obj_cls.rule_type == qos_consts.RULE_TYPE_BANDWIDTH_LIMIT and
+            if (obj_cls.rule_type in [
+                        qos_consts.RULE_TYPE_BANDWIDTH_LIMIT,
+                        qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH,
+                        q_consts.RULE_TYPE_PACKET_RATE_LIMIT] and
                     bwlimit_direction is not None):
                 rule_fields['direction'] = bwlimit_direction
             rule_obj = obj_cls(self.context, **rule_fields)
@@ -184,6 +190,11 @@ class QosPolicyDbObjectTestCase(test_base.BaseDbObjectTestCase,
             policy_obj.obj_load_attr('rules')
         return policy_obj, rules
 
+    @staticmethod
+    def _policy_through_version(obj, version):
+        primitive = obj.obj_to_primitive(target_version=version)
+        return policy.QosPolicy.clean_obj_from_primitive(primitive)
+
     def test_attach_network_get_network_policy(self):
 
         obj = self._create_test_policy()
@@ -456,6 +467,20 @@ class QosPolicyDbObjectTestCase(test_base.BaseDbObjectTestCase,
         self.assertRaises(exception.IncompatibleObjectVersion,
                           policy_obj.obj_to_primitive, '1.7')
 
+    def test_object_version_degradation_less_than_1_9(self):
+        policy_obj, rule_objs = self._create_test_policy_with_rules(
+            [qos_consts.RULE_TYPE_BANDWIDTH_LIMIT,
+             qos_consts.RULE_TYPE_DSCP_MARKING,
+             qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH,
+             q_consts.RULE_TYPE_PACKET_RATE_LIMIT], reload_rules=True,
+            bwlimit_direction=lib_consts.INGRESS_DIRECTION)
+        policy_obj_v1_8 = self._policy_through_version(policy_obj, '1.8')
+
+        self.assertIn(rule_objs[0], policy_obj_v1_8.rules)
+        self.assertIn(rule_objs[1], policy_obj_v1_8.rules)
+        self.assertIn(rule_objs[2], policy_obj_v1_8.rules)
+        self.assertNotIn(rule_objs[3], policy_obj_v1_8.rules)
+
     @mock.patch.object(policy.QosPolicy, 'unset_default')
     def test_filter_by_shared(self, *mocks):
         project_id = uuidutils.generate_uuid()
diff --git a/neutron/tests/unit/objects/qos/test_rule.py b/neutron/tests/unit/objects/qos/test_rule.py
index a8064137de..e225a9a335 100644
--- a/neutron/tests/unit/objects/qos/test_rule.py
+++ b/neutron/tests/unit/objects/qos/test_rule.py
@@ -18,6 +18,7 @@ from oslo_versionedobjects import exception
 
 from neutron.objects.qos import policy
 from neutron.objects.qos import rule
+from neutron.services.qos import constants as qos_constants
 from neutron.tests import base as neutron_test_base
 from neutron.tests.unit.objects import test_base
 from neutron.tests.unit import testlib_api
@@ -241,3 +242,51 @@ class QosMinimumBandwidthRuleDbObjectTestCase(test_base.BaseDbObjectTestCase,
                                           id=generated_qos_policy_id,
                                           project_id=uuidutils.generate_uuid())
             policy_obj.create()
+
+
+class QosPacketRateLimitRuleObjectTestCase(test_base.BaseObjectIfaceTestCase):
+
+    _test_class = rule.QosPacketRateLimitRule
+
+    def test_to_dict_returns_type(self):
+        obj = rule.QosPacketRateLimitRule(self.context, **self.db_objs[0])
+        dict_ = obj.to_dict()
+        self.assertEqual(qos_constants.RULE_TYPE_PACKET_RATE_LIMIT,
+                         dict_['type'])
+
+    def test_duplicate_rules(self):
+        policy_id = uuidutils.generate_uuid()
+        ingress_rule_1 = rule.QosPacketRateLimitRule(
+            self.context, qos_policy_id=policy_id,
+            max_kpps=2000, max_burst=800,
+            direction=constants.INGRESS_DIRECTION)
+        ingress_rule_2 = rule.QosPacketRateLimitRule(
+            self.context, qos_policy_id=policy_id,
+            max_kpps=3000, max_burst=200,
+            direction=constants.INGRESS_DIRECTION)
+        egress_rule = rule.QosPacketRateLimitRule(
+            self.context, qos_policy_id=policy_id,
+            max_kpps=1000, max_burst=500,
+            direction=constants.EGRESS_DIRECTION)
+        dscp_rule = rule.QosDscpMarkingRule(
+            self.context, qos_policy_id=policy_id, dscp_mark=16)
+        self.assertTrue(ingress_rule_1.duplicates(ingress_rule_2))
+        self.assertFalse(ingress_rule_1.duplicates(egress_rule))
+        self.assertFalse(ingress_rule_1.duplicates(dscp_rule))
+
+
+class QosPacketRateLimitRuleDbObjectTestCase(test_base.BaseDbObjectTestCase,
+                                             testlib_api.SqlTestCase):
+
+    _test_class = rule.QosPacketRateLimitRule
+
+    def setUp(self):
+        super(QosPacketRateLimitRuleDbObjectTestCase, self).setUp()
+
+        # Prepare policy to be able to insert a rule
+        for obj in self.db_objs:
+            generated_qos_policy_id = obj['qos_policy_id']
+            policy_obj = policy.QosPolicy(self.context,
+                                          id=generated_qos_policy_id,
+                                          project_id=uuidutils.generate_uuid())
+            policy_obj.create()
diff --git a/neutron/tests/unit/objects/qos/test_rule_type.py b/neutron/tests/unit/objects/qos/test_rule_type.py
index ea7304618d..43d8807f08 100644
--- a/neutron/tests/unit/objects/qos/test_rule_type.py
+++ b/neutron/tests/unit/objects/qos/test_rule_type.py
@@ -22,6 +22,7 @@ from oslo_config import cfg
 
 from neutron import manager
 from neutron.objects.qos import rule_type
+from neutron.services.qos import constants as qos_constants
 from neutron.services.qos import qos_plugin
 from neutron.tests import base as test_base
 
@@ -78,11 +79,11 @@ class QosRuleTypeObjectTestCase(test_base.BaseTestCase):
 
     def test_get_objects(self):
         rule_types_mock = mock.PropertyMock(
-            return_value=set(qos_consts.VALID_RULE_TYPES))
+            return_value=set(qos_constants.VALID_RULE_TYPES))
         with mock.patch.object(qos_plugin.QoSPlugin, 'supported_rule_types',
                                new_callable=rule_types_mock):
             types = rule_type.QosRuleType.get_objects()
-            self.assertEqual(sorted(qos_consts.VALID_RULE_TYPES),
+            self.assertEqual(sorted(qos_constants.VALID_RULE_TYPES),
                              sorted(type_['type'] for type_ in types))
 
     def test_wrong_type(self):
diff --git a/neutron/tests/unit/objects/test_objects.py b/neutron/tests/unit/objects/test_objects.py
index 0c7e975b9f..511b18e344 100644
--- a/neutron/tests/unit/objects/test_objects.py
+++ b/neutron/tests/unit/objects/test_objects.py
@@ -82,13 +82,14 @@ object_data = {
     'PortUplinkStatusPropagation': '1.1-f0a4ca451a941910376c33616dea5de2',
     'ProviderResourceAssociation': '1.0-05ab2d5a3017e5ce9dd381328f285f34',
     'ProvisioningBlock': '1.0-c19d6d05bfa8143533471c1296066125',
-    'QosBandwidthLimitRule': '1.3-51b662b12a8d1dfa89288d826c6d26d3',
-    'QosDscpMarkingRule': '1.3-0313c6554b34fd10c753cb63d638256c',
-    'QosMinimumBandwidthRule': '1.3-314c3419f4799067cc31cc319080adff',
+    'QosBandwidthLimitRule': '1.4-51b662b12a8d1dfa89288d826c6d26d3',
+    'QosDscpMarkingRule': '1.4-0313c6554b34fd10c753cb63d638256c',
+    'QosMinimumBandwidthRule': '1.4-314c3419f4799067cc31cc319080adff',
+    'QosPacketRateLimitRule': '1.4-18411fa95f54602b8c8a5da2d3194b31',
     'QosPolicyRBAC': '1.1-192845c5ed0718e1c54fac36936fcd7d',
-    'QosRuleType': '1.3-7286188edeb3a0386f9cf7979b9700fc',
+    'QosRuleType': '1.4-a5b870dfa6f510a91f5cb0216873064e',
     'QosRuleTypeDriver': '1.0-7d8cb9f0ef661ac03700eae97118e3db',
-    'QosPolicy': '1.8-4adb0cde3102c10d8970ec9487fd7fe7',
+    'QosPolicy': '1.9-4adb0cde3102c10d8970ec9487fd7fe7',
     'QosPolicyDefault': '1.0-59e5060eedb1f06dd0935a244d27d11c',
     'QosPolicyFloatingIPBinding': '1.0-5625df4205a18778cd6aa40f99be024e',
     'QosPolicyRouterGatewayIPBinding': '1.0-da064fbfe5ee18c950b905b483bf59e3',
diff --git a/neutron/tests/unit/services/qos/test_qos_plugin.py b/neutron/tests/unit/services/qos/test_qos_plugin.py
index 65b745bc4b..4ae2af3e1f 100644
--- a/neutron/tests/unit/services/qos/test_qos_plugin.py
+++ b/neutron/tests/unit/services/qos/test_qos_plugin.py
@@ -38,6 +38,7 @@ from neutron.objects import network as network_object
 from neutron.objects import ports as ports_object
 from neutron.objects.qos import policy as policy_object
 from neutron.objects.qos import rule as rule_object
+from neutron.services.qos import constants as qos_constants
 from neutron.services.qos import qos_plugin
 from neutron.tests.unit.db import test_db_base_plugin_v2
 from neutron.tests.unit.services.qos import base
@@ -98,7 +99,11 @@ class TestQosPlugin(base.BaseQosTestCase):
                                   'dscp_mark': 16},
             'minimum_bandwidth_rule': {
                 'id': uuidutils.generate_uuid(),
-                'min_kbps': 10}}
+                'min_kbps': 10},
+            'packet_rate_limit_rule': {
+                'id': uuidutils.generate_uuid(),
+                'max_kpps': 20,
+                'max_burst_kpps': 130}}
 
         self.policy = policy_object.QosPolicy(
             self.ctxt, **self.policy_data['policy'])
@@ -112,6 +117,9 @@ class TestQosPlugin(base.BaseQosTestCase):
         self.min_rule = rule_object.QosMinimumBandwidthRule(
             self.ctxt, **self.rule_data['minimum_bandwidth_rule'])
 
+        self.pps_rule = rule_object.QosPacketRateLimitRule(
+            self.ctxt, **self.rule_data['packet_rate_limit_rule'])
+
     def _validate_driver_params(self, method_name, ctxt):
         call_args = self.qos_plugin.driver_manager.call.call_args[0]
         self.assertTrue(self.qos_plugin.driver_manager.call.called)
@@ -1025,12 +1033,12 @@ class TestQosPlugin(base.BaseQosTestCase):
 
     def test_get_rule_types(self):
         rule_types_mock = mock.PropertyMock(
-            return_value=qos_consts.VALID_RULE_TYPES)
+            return_value=qos_constants.VALID_RULE_TYPES)
         filters = {'type': 'type_id'}
         with mock.patch.object(qos_plugin.QoSPlugin, 'supported_rule_types',
                                new_callable=rule_types_mock):
             types = self.qos_plugin.get_rule_types(self.ctxt, filters=filters)
-            self.assertEqual(sorted(qos_consts.VALID_RULE_TYPES),
+            self.assertEqual(sorted(qos_constants.VALID_RULE_TYPES),
                              sorted(type_['type'] for type_ in types))
 
     @mock.patch('neutron.objects.ports.Port')
@@ -1078,6 +1086,180 @@ class TestQosPlugin(base.BaseQosTestCase):
             self.assertLess(
                 action_index, mock_manager.mock_calls.index(driver_mock_call))
 
+    def test_create_policy_packet_rate_limit_rule(self):
+        _policy = policy_object.QosPolicy(
+            self.ctxt, **self.policy_data['policy'])
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=_policy):
+            setattr(_policy, "rules", [self.pps_rule])
+            self.qos_plugin.create_policy_packet_rate_limit_rule(
+                self.ctxt, self.policy.id, self.rule_data)
+            self._validate_driver_params('update_policy', self.ctxt)
+
+    def test_create_policy_pps_rule_duplicates(self):
+        _policy = self._get_policy()
+        setattr(_policy, "rules", [self.pps_rule])
+        new_rule_data = {
+            'packet_rate_limit_rule': {
+                'max_kpps': 400,
+                'direction': self.pps_rule.direction
+            }
+        }
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=_policy) as mock_qos_get_obj:
+            self.assertRaises(
+                qos_exc.QoSRulesConflict,
+                self.qos_plugin.create_policy_packet_rate_limit_rule,
+                self.ctxt, _policy.id, new_rule_data)
+            mock_qos_get_obj.assert_called_once_with(self.ctxt, id=_policy.id)
+
+    def test_update_policy_packet_rate_limit_rule(self):
+        _policy = policy_object.QosPolicy(
+            self.ctxt, **self.policy_data['policy'])
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=_policy):
+            setattr(_policy, "rules", [self.pps_rule])
+            self.qos_plugin.update_policy_packet_rate_limit_rule(
+                self.ctxt, self.pps_rule.id, self.policy.id, self.rule_data)
+            self._validate_driver_params('update_policy', self.ctxt)
+
+    def test_update_policy_pps_rule_bad_policy(self):
+        _policy = policy_object.QosPolicy(
+            self.ctxt, **self.policy_data['policy'])
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=_policy):
+            setattr(_policy, "rules", [])
+            self.assertRaises(
+                qos_exc.QosRuleNotFound,
+                self.qos_plugin.update_policy_packet_rate_limit_rule,
+                self.ctxt, self.pps_rule.id, self.policy.id,
+                self.rule_data)
+
+    def test_delete_policy_packet_rate_limit_rule(self):
+        _policy = policy_object.QosPolicy(
+            self.ctxt, **self.policy_data['policy'])
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=_policy):
+            setattr(_policy, "rules", [self.pps_rule])
+            self.qos_plugin.delete_policy_packet_rate_limit_rule(
+                self.ctxt, self.pps_rule.id, self.policy.id)
+            self._validate_driver_params('update_policy', self.ctxt)
+
+    def test_delete_policy_pps_rule_bad_policy(self):
+        _policy = policy_object.QosPolicy(
+            self.ctxt, **self.policy_data['policy'])
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=_policy):
+            setattr(_policy, "rules", [])
+            self.assertRaises(
+                qos_exc.QosRuleNotFound,
+                self.qos_plugin.delete_policy_packet_rate_limit_rule,
+                self.ctxt, self.pps_rule.id, _policy.id)
+
+    def test_get_policy_packet_rate_limit_rule(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=self.policy):
+            with mock.patch('neutron.objects.qos.rule.'
+                            'QosPacketRateLimitRule.'
+                            'get_object') as get_object_mock:
+                self.qos_plugin.get_policy_packet_rate_limit_rule(
+                    self.ctxt, self.pps_rule.id, self.policy.id)
+                get_object_mock.assert_called_once_with(self.ctxt,
+                                                        id=self.pps_rule.id)
+
+    def test_get_policy_packet_rate_limit_rules_for_policy(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=self.policy):
+            with mock.patch('neutron.objects.qos.rule.'
+                            'QosPacketRateLimitRule.'
+                            'get_objects') as get_objects_mock:
+                self.qos_plugin.get_policy_packet_rate_limit_rules(
+                    self.ctxt, self.policy.id)
+                get_objects_mock.assert_called_once_with(
+                    self.ctxt, _pager=mock.ANY, qos_policy_id=self.policy.id)
+
+    def test_get_policy_packet_rate_limit_rules_for_policy_with_filters(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=self.policy):
+            with mock.patch('neutron.objects.qos.rule.'
+                            'QosPacketRateLimitRule.'
+                            'get_objects') as get_objects_mock:
+                filters = {'filter': 'filter_id'}
+                self.qos_plugin.get_policy_packet_rate_limit_rules(
+                    self.ctxt, self.policy.id, filters=filters)
+                get_objects_mock.assert_called_once_with(
+                    self.ctxt, _pager=mock.ANY,
+                    qos_policy_id=self.policy.id,
+                    filter='filter_id')
+
+    def test_get_policy_packet_rate_limit_rule_for_nonexistent_policy(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=None):
+            self.assertRaises(
+                qos_exc.QosPolicyNotFound,
+                self.qos_plugin.get_policy_packet_rate_limit_rule,
+                self.ctxt, self.pps_rule.id, self.policy.id)
+
+    def test_get_policy_packet_rate_limit_rules_for_nonexistent_policy(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=None):
+            self.assertRaises(
+                qos_exc.QosPolicyNotFound,
+                self.qos_plugin.get_policy_packet_rate_limit_rules,
+                self.ctxt, self.policy.id)
+
+    def test_create_policy_pps_rule_for_nonexistent_policy(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=None):
+            self.assertRaises(
+                qos_exc.QosPolicyNotFound,
+                self.qos_plugin.create_policy_packet_rate_limit_rule,
+                self.ctxt, self.policy.id, self.rule_data)
+
+    def test_update_policy_pps_rule_for_nonexistent_policy(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=None):
+            self.assertRaises(
+                qos_exc.QosPolicyNotFound,
+                self.qos_plugin.update_policy_packet_rate_limit_rule,
+                self.ctxt, self.pps_rule.id, self.policy.id, self.rule_data)
+
+    def test_delete_policy_pps_rule_for_nonexistent_policy(self):
+        with mock.patch('neutron.objects.qos.policy.QosPolicy.get_object',
+                        return_value=None):
+            self.assertRaises(
+                qos_exc.QosPolicyNotFound,
+                self.qos_plugin.delete_policy_packet_rate_limit_rule,
+                self.ctxt, self.pps_rule.id, self.policy.id)
+
+    def test_get_pps_rule_type(self):
+        admin_ctxt = context.get_admin_context()
+        drivers_details = [{
+            'name': 'fake-driver',
+            'supported_parameters': [{
+                'parameter_name': 'max_kpps',
+                'parameter_type': lib_constants.VALUES_TYPE_RANGE,
+                'parameter_range': {'start': 0, 'end': 100}
+            }]
+        }]
+        with mock.patch.object(
+            qos_plugin.QoSPlugin, "supported_rule_type_details",
+            return_value=drivers_details
+        ):
+            rule_type_details = self.qos_plugin.get_rule_type(
+                admin_ctxt, qos_constants.RULE_TYPE_PACKET_RATE_LIMIT)
+            self.assertEqual(
+                qos_constants.RULE_TYPE_PACKET_RATE_LIMIT,
+                rule_type_details['type'])
+            self.assertEqual(
+                drivers_details, rule_type_details['drivers'])
+
+    def test_get_pps_rule_type_as_user(self):
+        self.assertRaises(
+            lib_exc.NotAuthorized,
+            self.qos_plugin.get_rule_type,
+            self.ctxt, qos_constants.RULE_TYPE_PACKET_RATE_LIMIT)
+
 
 class QoSRuleAliasTestExtensionManager(object):
 
diff --git a/releasenotes/notes/qos_rule_type_pps-27254b90f26c10b6.yaml b/releasenotes/notes/qos_rule_type_pps-27254b90f26c10b6.yaml
new file mode 100644
index 0000000000..ffc68e6996
--- /dev/null
+++ b/releasenotes/notes/qos_rule_type_pps-27254b90f26c10b6.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Added new API extension to QoS service plugin
+    to support CRUD actions for packet rate limit (packet per
+    second) rule in Neutron server side.
diff --git a/setup.cfg b/setup.cfg
index 5eade15341..e4fc932779 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -235,6 +235,7 @@ neutron.objects =
     QosBandwidthLimitRule = neutron.objects.qos.rule:QosBandwidthLimitRule
     QosDscpMarkingRule = neutron.objects.qos.rule:QosDscpMarkingRule
     QosMinimumBandwidthRule = neutron.objects.qos.rule:QosMinimumBandwidthRule
+    QosPacketRateLimitRule = neutron.objects.qos.rule:QosPacketRateLimitRule
     QosPolicy = neutron.objects.qos.policy:QosPolicy
     QosPolicyDefault = neutron.objects.qos.policy:QosPolicyDefault
     QosPolicyFloatingIPBinding = neutron.objects.qos.binding:QosPolicyFloatingIPBinding