openstack/neutron
Code Issues Proposed changes
1f76c9562b
neutron/neutron/common/constants.py
Sławek Kapłoński 1be8574352 Fix ingress bw limit for OVS DPDK ports 
For OVS based DPDK ports ingress bandwidth limit is now implemented
using egress-policer qos type.
Additionally limit values are set in other_config of QoS because there
is no queue used in this case.

This patch moves also helper methods used to conversion between
bytes and bits and between bits and kilobits to neutron.common.utils
to be able to use it also in ovs_lib module.

Change-Id: I94d1e8dfb82df5c602476db8aaa884ae91fecd7f
Closes-Bug: #1724729
2018-01-15 13:19:14 +00:00

229 lines
8.6 KiB
Python
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# Copyright (c) 2012 OpenStack Foundation.
#
# 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 import constants as lib_constants
ROUTER_PORT_OWNERS = lib_constants.ROUTER_INTERFACE_OWNERS_SNAT + \
(lib_constants.DEVICE_OWNER_ROUTER_GW,)
ROUTER_STATUS_ACTIVE = 'ACTIVE'
ROUTER_STATUS_ALLOCATING = 'ALLOCATING'
ROUTER_STATUS_ERROR = 'ERROR'
VALID_ROUTER_STATUS = (ROUTER_STATUS_ACTIVE,
ROUTER_STATUS_ALLOCATING,
ROUTER_STATUS_ERROR)
HA_ROUTER_STATE_KEY = '_ha_state'
METERING_LABEL_KEY = '_metering_labels'
FLOATINGIP_AGENT_INTF_KEY = '_floatingip_agent_interfaces'
SNAT_ROUTER_INTF_KEY = '_snat_router_interfaces'
DVR_SNAT_BOUND = 'dvr_snat_bound'
L3_AGENT_MODE_DVR_NO_EXTERNAL = 'dvr_no_external'
HA_NETWORK_NAME = 'HA network tenant %s'
HA_SUBNET_NAME = 'HA subnet tenant %s'
HA_PORT_NAME = 'HA port tenant %s'
HA_ROUTER_STATE_ACTIVE = 'active'
HA_ROUTER_STATE_STANDBY = 'standby'
VALID_HA_STATES = (HA_ROUTER_STATE_ACTIVE, HA_ROUTER_STATE_STANDBY)
PAGINATION_INFINITE = 'infinite'
SORT_DIRECTION_ASC = 'asc'
SORT_DIRECTION_DESC = 'desc'
ETHERTYPE_NAME_ARP = 'arp'
ETHERTYPE_ARP = 0x0806
ETHERTYPE_IP = 0x0800
ETHERTYPE_IPV6 = 0x86DD
IP_PROTOCOL_NAME_ALIASES = {lib_constants.PROTO_NAME_IPV6_ICMP_LEGACY:
lib_constants.PROTO_NAME_IPV6_ICMP}
IP_PROTOCOL_NUM_TO_NAME_MAP = {
str(v): k for k, v in lib_constants.IP_PROTOCOL_MAP.items()}
# When using iptables-save we specify '-p {proto}',
# but sometimes those values are not identical. This is a map
# of known protocol numbers that require a name to be used and
# protocol names that require a different name to be used,
# because that is how iptables-save will display them.
#
# This is how the list was created, so there is a possibility
# it will need to be updated in the future:
#
# $ for num in {0..255}; do iptables -A INPUT -p $num; done
# $ iptables-save
#
# These cases are special, and were found by inspection:
# - 'ipv6-encap' uses 'ipv6'
# - 'icmpv6' uses 'ipv6-icmp'
# - 'pgm' uses '113' instead of its name
# - protocol '0' uses no -p argument
IPTABLES_PROTOCOL_NAME_MAP = {lib_constants.PROTO_NAME_IPV6_ENCAP: 'ipv6',
lib_constants.PROTO_NAME_IPV6_ICMP_LEGACY:
'ipv6-icmp',
lib_constants.PROTO_NAME_PGM: '113',
'0': None,
'1': 'icmp',
'2': 'igmp',
'3': 'ggp',
'4': 'ipencap',
'5': 'st',
'6': 'tcp',
'8': 'egp',
'9': 'igp',
'12': 'pup',
'17': 'udp',
'20': 'hmp',
'22': 'xns-idp',
'27': 'rdp',
'29': 'iso-tp4',
'33': 'dccp',
'36': 'xtp',
'37': 'ddp',
'38': 'idpr-cmtp',
'41': 'ipv6',
'43': 'ipv6-route',
'44': 'ipv6-frag',
'45': 'idrp',
'46': 'rsvp',
'47': 'gre',
'50': 'esp',
'51': 'ah',
'57': 'skip',
'58': 'ipv6-icmp',
'59': 'ipv6-nonxt',
'60': 'ipv6-opts',
'73': 'rspf',
'81': 'vmtp',
'88': 'eigrp',
'89': 'ospf',
'93': 'ax.25',
'94': 'ipip',
'97': 'etherip',
'98': 'encap',
'103': 'pim',
'108': 'ipcomp',
'112': 'vrrp',
'115': 'l2tp',
'124': 'isis',
'132': 'sctp',
'133': 'fc',
'135': 'mobility-header',
'136': 'udplite',
'137': 'mpls-in-ip',
'138': 'manet',
'139': 'hip',
'140': 'shim6',
'141': 'wesp',
'142': 'rohc'}
# Timeout in seconds for getting an IPv6 LLA
LLA_TASK_TIMEOUT = 40
# length of all device prefixes (e.g. qvo, tap, qvb)
LINUX_DEV_PREFIX_LEN = 3
# must be shorter than linux IFNAMSIZ (which is 16)
LINUX_DEV_LEN = 14
# Possible prefixes to partial port IDs in interface names used by the OVS,
# Linux Bridge, and IVS VIF drivers in Nova and the neutron agents. See the
# 'get_ovs_interfaceid' method in Nova (nova/virt/libvirt/vif.py) for details.
INTERFACE_PREFIXES = (lib_constants.TAP_DEVICE_PREFIX,
lib_constants.VETH_DEVICE_PREFIX,
lib_constants.SNAT_INT_DEV_PREFIX)
ATTRIBUTES_TO_UPDATE = 'attributes_to_update'
# TODO(amuller): Re-define the RPC namespaces once Oslo messaging supports
# Targets with multiple namespaces. Neutron will then implement callbacks
# for its RPC clients in order to support rolling upgrades.
# RPC Interface for agents to call DHCP API implemented on the plugin side
RPC_NAMESPACE_DHCP_PLUGIN = None
# RPC interface for the metadata service to get info from the plugin side
RPC_NAMESPACE_METADATA = None
# RPC interface for agent to plugin security group API
RPC_NAMESPACE_SECGROUP = None
# RPC interface for agent to plugin DVR api
RPC_NAMESPACE_DVR = None
# RPC interface for reporting state back to the plugin
RPC_NAMESPACE_STATE = None
# RPC interface for agent to plugin resources API
RPC_NAMESPACE_RESOURCES = None
# Default network MTU value when not configured
DEFAULT_NETWORK_MTU = 1500
IPV6_MIN_MTU = 1280
ROUTER_MARK_MASK = "0xffff"
VALID_ETHERTYPES = (lib_constants.IPv4, lib_constants.IPv6)
IP_ALLOWED_VERSIONS = [lib_constants.IP_VERSION_4, lib_constants.IP_VERSION_6]
PORT_RANGE_MIN = 1
PORT_RANGE_MAX = 65535
# Configuration values for accept_ra sysctl, copied from linux kernel
# networking (netdev) tree, file Documentation/networking/ip-sysctl.txt
#
# Possible values are:
# 0 Do not accept Router Advertisements.
# 1 Accept Router Advertisements if forwarding is disabled.
# 2 Overrule forwarding behaviour. Accept Router Advertisements
# even if forwarding is enabled.
ACCEPT_RA_DISABLED = 0
ACCEPT_RA_WITHOUT_FORWARDING = 1
ACCEPT_RA_WITH_FORWARDING = 2
# Some components communicate using private address ranges, define
# them all here. These address ranges should not cause any issues
# even if they overlap since they are used in disjoint namespaces,
# but for now they are unique.
# We define the metadata cidr since it falls in the range.
PRIVATE_CIDR_RANGE = '169.254.0.0/16'
DVR_FIP_LL_CIDR = '169.254.64.0/18'
L3_HA_NET_CIDR = '169.254.192.0/18'
METADATA_CIDR = '169.254.169.254/32'
# The only defined IpamAllocation status at this stage is 'ALLOCATED'.
# More states will be available in the future - e.g.: RECYCLABLE
IPAM_ALLOCATION_STATUS_ALLOCATED = 'ALLOCATED'
VALID_IPAM_ALLOCATION_STATUSES = (IPAM_ALLOCATION_STATUS_ALLOCATED,)
# Port binding states for Live Migration
PORT_BINDING_STATUSES = (lib_constants.ACTIVE,
lib_constants.INACTIVE)
VALID_FLOATINGIP_STATUS = (lib_constants.FLOATINGIP_STATUS_ACTIVE,
lib_constants.FLOATINGIP_STATUS_DOWN,
lib_constants.FLOATINGIP_STATUS_ERROR)
# Floating IP host binding states
FLOATING_IP_HOST_UNBOUND = "FLOATING_IP_HOST_UNBOUND"
FLOATING_IP_HOST_NEEDS_BINDING = "FLOATING_IP_HOST_NEEDS_BINDING"
# Possible types of values (e.g. in QoS rule types)
VALUES_TYPE_CHOICES = "choices"
VALUES_TYPE_RANGE = "range"
# Units base
SI_BASE = 1000
IEC_BASE = 1024
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