Merge "Use pyroute2 for SRIOV VF commands" into stable/train

neutron/agent/linux/ip_lib.py

@@ -28,7 +28,6 @@ from pyroute2.netlink import exceptions as netlink_exceptions
 from pyroute2.netlink import rtnl
 from pyroute2.netlink.rtnl import ifaddrmsg
 from pyroute2.netlink.rtnl import ifinfmsg
-from pyroute2 import NetlinkError
 from pyroute2 import netns
 
 from neutron._i18n import _
@@ -100,9 +99,7 @@ class AddressNotReady(exceptions.NeutronException):
                 "become ready: %(reason)s")
 
 
-class InvalidArgument(exceptions.NeutronException):
+InvalidArgument = privileged.InvalidArgument
-    message = _("Invalid value %(value)s for parameter %(parameter)s "
-                "provided.")
 
 
 class SubProcessBase(object):
@@ -442,13 +439,8 @@ class IpLinkCommand(IpDeviceCommandBase):
             self.name, self._parent.namespace, ifinfmsg.IFF_ALLMULTI)
 
     def set_mtu(self, mtu_size):
-        try:
+        privileged.set_link_attribute(
-            privileged.set_link_attribute(
+            self.name, self._parent.namespace, mtu=mtu_size)
-                self.name, self._parent.namespace, mtu=mtu_size)
-        except NetlinkError as e:
-            if e.code == errno.EINVAL:
-                raise InvalidArgument(parameter="MTU", value=mtu_size)
-            raise
 
     def set_up(self):
         privileged.set_link_attribute(
@@ -520,6 +512,13 @@ class IpLinkCommand(IpDeviceCommandBase):
     def exists(self):
         return privileged.interface_exists(self.name, self._parent.namespace)
 
+    def get_vfs(self):
+        return privileged.get_link_vfs(self.name, self._parent.namespace)
+
+    def set_vf_feature(self, vf_config):
+        return privileged.set_link_vf_feature(
+            self.name, self._parent.namespace, vf_config)
+
 
 class IpAddrCommand(IpDeviceCommandBase):
     COMMAND = 'addr'

neutron/agent/linux/ip_link_support.py

@@ -1,108 +0,0 @@
-# Copyright 2014 Mellanox Technologies, Ltd
-#
-# 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.
-
-import re
-
-from neutron_lib import exceptions as n_exc
-from oslo_log import log as logging
-
-from neutron._i18n import _
-from neutron.agent.linux import utils
-
-
-LOG = logging.getLogger(__name__)
-
-
-class IpLinkSupportError(n_exc.NeutronException):
-    pass
-
-
-class UnsupportedIpLinkCommand(IpLinkSupportError):
-    message = _("ip link command is not supported: %(reason)s")
-
-
-class InvalidIpLinkCapability(IpLinkSupportError):
-    message = _("ip link capability %(capability)s is not supported")
-
-
-class IpLinkConstants(object):
-    IP_LINK_CAPABILITY_STATE = "state"
-    IP_LINK_CAPABILITY_VLAN = "vlan"
-    IP_LINK_CAPABILITY_RATE = "rate"
-    IP_LINK_CAPABILITY_MIN_TX_RATE = "min_tx_rate"
-    IP_LINK_CAPABILITY_SPOOFCHK = "spoofchk"
-    IP_LINK_SUB_CAPABILITY_QOS = "qos"
-
-
-class IpLinkSupport(object):
-    VF_BLOCK_REGEX = r"\[ vf NUM(?P<vf_block>.*) \] \]"
-
-    CAPABILITY_REGEX = r"\[ %s (.*)"
-    SUB_CAPABILITY_REGEX = r"\[ %(cap)s (.*) \[ %(subcap)s (.*)"
-
-    @classmethod
-    def get_vf_mgmt_section(cls):
-        """Parses ip link help output, and gets vf block"""
-
-        output = cls._get_ip_link_output()
-        vf_block_pattern = re.search(cls.VF_BLOCK_REGEX,
-                                     output,
-                                     re.DOTALL | re.MULTILINE)
-        if vf_block_pattern:
-            return vf_block_pattern.group("vf_block")
-
-    @classmethod
-    def vf_mgmt_capability_supported(cls, vf_section, capability,
-                                     subcapability=None):
-        """Validate vf capability support
-
-        Checks if given vf capability (and sub capability
-        if given) supported
-        :param vf_section: vf Num block content
-        :param capability: for example: vlan, rate, spoofchk, state
-        :param subcapability: for example: qos
-        """
-        if not vf_section:
-            return False
-        if subcapability:
-            regex = cls.SUB_CAPABILITY_REGEX % {"cap": capability,
-                                                "subcap": subcapability}
-        else:
-            regex = cls.CAPABILITY_REGEX % capability
-        pattern_match = re.search(regex, vf_section,
-                                  re.DOTALL | re.MULTILINE)
-        return pattern_match is not None
-
-    @classmethod
-    def _get_ip_link_output(cls):
-        """Gets the output of the ip link help command
-
-        Runs ip link help command and stores its output
-        Note: ip link help return error and writes its output to stderr
-                so we get the output from there. however, if this issue
-                will be solved and the command will write to stdout, we
-                will get the output from there too.
-        """
-        try:
-            ip_cmd = ['ip', 'link', 'help']
-            _stdout, _stderr = utils.execute(
-                ip_cmd,
-                check_exit_code=False,
-                return_stderr=True,
-                log_fail_as_error=False)
-        except Exception as e:
-            LOG.exception("Failed executing ip command")
-            raise UnsupportedIpLinkCommand(reason=e)
-        return _stdout or _stderr

neutron/cmd/sanity/checks.py

@@ -29,7 +29,6 @@ from neutron.agent.l3 import ha_router
 from neutron.agent.l3 import namespaces
 from neutron.agent.linux import external_process
 from neutron.agent.linux import ip_lib
-from neutron.agent.linux import ip_link_support
 from neutron.agent.linux import keepalived
 from neutron.agent.linux import utils as agent_utils
 from neutron.cmd import runtime_checks
@@ -146,41 +145,6 @@ def icmpv6_header_match_supported():
                                actions="NORMAL")
 
 
-def _vf_management_support(required_caps):
-    is_supported = True
-    try:
-        vf_section = ip_link_support.IpLinkSupport.get_vf_mgmt_section()
-        for cap in required_caps:
-            if not ip_link_support.IpLinkSupport.vf_mgmt_capability_supported(
-                   vf_section, cap):
-                is_supported = False
-                LOG.debug("ip link command does not support "
-                          "vf capability '%(cap)s'", {'cap': cap})
-    except ip_link_support.UnsupportedIpLinkCommand:
-        LOG.exception("Unexpected exception while checking supported "
-                      "ip link command")
-        return False
-    return is_supported
-
-
-def vf_management_supported():
-    required_caps = (
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_SPOOFCHK,
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE)
-    return _vf_management_support(required_caps)
-
-
-def vf_extended_management_supported():
-    required_caps = (
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_SPOOFCHK,
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE,
-        ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE,
-    )
-    return _vf_management_support(required_caps)
-
-
 def netns_read_requires_helper():
     nsname = "netnsreadtest-" + uuidutils.generate_uuid()
     ip_lib.create_network_namespace(nsname)

neutron/cmd/sanity_check.py

@@ -182,25 +182,6 @@ def check_icmpv6_header_match():
     return result
 
 
-def check_vf_management():
-    result = checks.vf_management_supported()
-    if not result:
-        LOG.error('Check for VF management support failed. '
-                  'Please ensure that the version of ip link '
-                  'being used has VF support.')
-    return result
-
-
-def check_vf_extended_management():
-    result = checks.vf_extended_management_supported()
-    if not result:
-        LOG.error('Check for VF extended management support failed. '
-                  'Please ensure that the version of ip link '
-                  'being used has VF extended support: version '
-                  '"iproute2-ss140804", git tag "v3.16.0"')
-    return result
-
-
 def check_ovsdb_native():
     result = checks.ovsdb_native_supported()
     if not result:
@@ -315,10 +296,6 @@ OPTS = [
                     help=_('Check for ARP header match support')),
     BoolOptCallback('icmpv6_header_match', check_icmpv6_header_match,
                     help=_('Check for ICMPv6 header match support')),
-    BoolOptCallback('vf_management', check_vf_management,
-                    help=_('Check for VF management support')),
-    BoolOptCallback('vf_extended_management', check_vf_extended_management,
-                    help=_('Check for VF extended management support')),
     BoolOptCallback('read_netns', check_read_netns,
                     help=_('Check netns permission settings')),
     BoolOptCallback('dnsmasq_local_service_supported',

neutron/plugins/ml2/drivers/mech_sriov/agent/common/exceptions.py

@@ -26,13 +26,5 @@ class InvalidDeviceError(SriovNicError):
     message = _("Invalid Device %(dev_name)s: %(reason)s")
 
 
-class IpCommandError(SriovNicError):
-    message = _("ip command failed on device %(dev_name)s: %(reason)s")
-
-
-class IpCommandOperationNotSupportedError(SriovNicError):
-    message = _("Operation not supported on device %(dev_name)s")
-
-
 class InvalidPciSlotError(SriovNicError):
     message = _("Invalid pci slot %(pci_slot)s")

neutron/plugins/ml2/drivers/mech_sriov/agent/eswitch_manager.py

@@ -21,7 +21,6 @@ from neutron_lib.utils import helpers
 from oslo_log import log as logging
 
 from neutron._i18n import _
-from neutron.agent.linux import ip_link_support
 from neutron.plugins.ml2.drivers.mech_sriov.agent.common \
     import exceptions as exc
 from neutron.plugins.ml2.drivers.mech_sriov.agent import pci_lib
@@ -29,6 +28,14 @@ from neutron.plugins.ml2.drivers.mech_sriov.agent import pci_lib
 LOG = logging.getLogger(__name__)
 
 
+IP_LINK_CAPABILITY_STATE = 'state'
+IP_LINK_CAPABILITY_VLAN = 'vlan'
+IP_LINK_CAPABILITY_RATE = 'max_tx_rate'
+IP_LINK_CAPABILITY_MIN_TX_RATE = 'min_tx_rate'
+IP_LINK_CAPABILITY_SPOOFCHK = 'spoofchk'
+IP_LINK_SUB_CAPABILITY_QOS = 'qos'
+
+
 class PciOsWrapper(object):
     """OS wrapper for checking virtual functions"""
 
@@ -200,11 +207,11 @@ class EmbSwitch(object):
                                                  auto=propagate_uplink_state)
 
     def set_device_rate(self, pci_slot, rate_type, rate_kbps):
-        """Set device rate: rate (max_tx_rate), min_tx_rate
+        """Set device rate: max_tx_rate, min_tx_rate
 
         @param pci_slot: Virtual Function address
-        @param rate_type: device rate name type. Could be 'rate' and
+        @param rate_type: device rate name type. Could be 'max_tx_rate' and
-                          'min_tx_rate'.
+                          'min_tx_rate' ('rate' is not supported anymore).
         @param rate_kbps: device rate in kbps
         """
         vf_index = self._get_vf_index(pci_slot)
@@ -349,7 +356,7 @@ class ESwitchManager(object):
         embedded_switch = self._get_emb_eswitch(device_mac, pci_slot)
         if embedded_switch:
             return embedded_switch.get_device_state(pci_slot)
-        return pci_lib.LinkState.DISABLE
+        return pci_lib.LinkState.disable.name
 
     def set_device_max_rate(self, device_mac, pci_slot, max_kbps):
         """Set device max rate
@@ -362,9 +369,7 @@ class ESwitchManager(object):
         embedded_switch = self._get_emb_eswitch(device_mac, pci_slot)
         if embedded_switch:
             embedded_switch.set_device_rate(
-                pci_slot,
+                pci_slot, IP_LINK_CAPABILITY_RATE, max_kbps)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE,
-                max_kbps)
 
     def set_device_min_tx_rate(self, device_mac, pci_slot, min_kbps):
         """Set device min_tx_rate
@@ -377,9 +382,7 @@ class ESwitchManager(object):
         embedded_switch = self._get_emb_eswitch(device_mac, pci_slot)
         if embedded_switch:
             embedded_switch.set_device_rate(
-                pci_slot,
+                pci_slot, IP_LINK_CAPABILITY_MIN_TX_RATE, min_kbps)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE,
-                min_kbps)
 
     def set_device_state(self, device_mac, pci_slot, admin_state_up,
                          propagate_uplink_state):
@@ -498,9 +501,7 @@ class ESwitchManager(object):
         Clear the "rate" configuration from VF by setting it to 0.
         @param pci_slot: VF PCI slot
         """
-        self._clear_rate(
+        self._clear_rate(pci_slot, IP_LINK_CAPABILITY_RATE)
-            pci_slot,
-            ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE)
 
     def clear_min_tx_rate(self, pci_slot):
         """Clear the VF "min_tx_rate" parameter
@@ -508,16 +509,14 @@ class ESwitchManager(object):
         Clear the "min_tx_rate" configuration from VF by setting it to 0.
         @param pci_slot: VF PCI slot
         """
-        self._clear_rate(
+        self._clear_rate(pci_slot, IP_LINK_CAPABILITY_MIN_TX_RATE)
-            pci_slot,
-            ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE)
 
     def _clear_rate(self, pci_slot, rate_type):
         """Clear the VF rate parameter specified in rate_type
 
         Clear the rate configuration from VF by setting it to 0.
         @param pci_slot: VF PCI slot
-        @param rate_type: rate to clear ('rate', 'min_tx_rate')
+        @param rate_type: rate to clear ('max_tx_rate', 'min_tx_rate')
         """
         # NOTE(Moshe Levi): we don't use the self._get_emb_eswitch here,
         # because when clearing the VF it may be not assigned. This happens

neutron/plugins/ml2/drivers/mech_sriov/agent/extension_drivers/qos_driver.py

@@ -15,9 +15,8 @@
 from oslo_log import log as logging
 
 from neutron.agent.l2.extensions import qos_linux as qos
-from neutron.plugins.ml2.drivers.mech_sriov.agent.common import (
-    exceptions as exc)
 from neutron.plugins.ml2.drivers.mech_sriov.agent import eswitch_manager as esm
+from neutron.privileged.agent.linux import ip_lib as priv_ip_lib
 from neutron.services.qos.drivers.sriov import driver
 
 LOG = logging.getLogger(__name__)
@@ -55,9 +54,9 @@ class QosSRIOVAgentDriver(qos.QosLinuxAgentDriver):
             try:
                 self.eswitch_mgr.set_device_max_rate(
                     device, pci_slot, max_kbps)
-            except exc.SriovNicError:
+            except (priv_ip_lib.InterfaceOperationNotSupported,
-                LOG.exception(
+                    priv_ip_lib.InvalidArgument):
-                    "Failed to set device %s max rate", device)
+                LOG.exception("Failed to set device %s max rate", device)
         else:
             LOG.info("No device with MAC %s defined on agent.", device)
 
@@ -97,8 +96,8 @@ class QosSRIOVAgentDriver(qos.QosLinuxAgentDriver):
             try:
                 self.eswitch_mgr.set_device_min_tx_rate(
                     device, pci_slot, min_tx_kbps)
-            except exc.SriovNicError:
+            except (priv_ip_lib.InterfaceOperationNotSupported,
-                LOG.exception(
+                    priv_ip_lib.InvalidArgument):
-                    "Failed to set device %s min_tx_rate", device)
+                LOG.exception("Failed to set device %s min_tx_rate", device)
         else:
             LOG.info("No device with MAC %s defined on agent.", device)

neutron/plugins/ml2/drivers/mech_sriov/agent/pci_lib.py

@@ -13,86 +13,42 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import re
+import enum
 
 from oslo_log import log as logging
 
 from neutron.agent.linux import ip_lib
-from neutron.plugins.ml2.drivers.mech_sriov.agent.common \
+
-    import exceptions as exc
 
 LOG = logging.getLogger(__name__)
 
 
-class LinkState(object):
+class LinkState(enum.Enum):
-    ENABLE = "enable"
+    auto = 0
-    DISABLE = "disable"
+    enable = 1
-    AUTO = "auto"
+    disable = 2
 
 
 class PciDeviceIPWrapper(ip_lib.IPWrapper):
-    """Wrapper class for ip link commands.
+    """Wrapper class for ip link commands related to virtual functions."""
-
-    wrapper for getting/setting pci device details using ip link...
-    """
-    VF_PATTERN = r"^vf\s+(?P<vf_index>\d+)\s+"
-    MAC_PATTERN = r"MAC\s+(?P<mac>[a-fA-F0-9:]+),"
-    STATE_PATTERN = r"\s+link-state\s+(?P<state>\w+)"
-    ANY_PATTERN = ".*,"
-
-    VF_LINE_FORMAT = VF_PATTERN + MAC_PATTERN + ANY_PATTERN + STATE_PATTERN
-    VF_DETAILS_REG_EX = re.compile(VF_LINE_FORMAT)
-
-    IP_LINK_OP_NOT_SUPPORTED = 'RTNETLINK answers: Operation not supported'
 
     def __init__(self, dev_name):
         super(PciDeviceIPWrapper, self).__init__()
         self.dev_name = dev_name
 
-    def _set_feature(self, vf_index, feature, value):
-        """Sets vf feature
-
-        Checks if the feature is not supported or there's some
-        general error during ip link invocation and raises
-        exception accordingly.
-
-        :param vf_index: vf index
-        :param feature: name of a feature to be passed to ip link,
-                        such as 'state' or 'spoofchk'
-        :param value: value of the feature setting
-        """
-        try:
-            self._as_root([], "link", ("set", self.dev_name, "vf",
-                                       str(vf_index), feature, value))
-        except Exception as e:
-            if self.IP_LINK_OP_NOT_SUPPORTED in str(e):
-                raise exc.IpCommandOperationNotSupportedError(
-                    dev_name=self.dev_name)
-            else:
-                raise exc.IpCommandError(dev_name=self.dev_name,
-                                         reason=str(e))
-
     def get_assigned_macs(self, vf_list):
         """Get assigned mac addresses for vf list.
 
         @param vf_list: list of vf indexes
         @return: dict mapping of vf to mac
         """
-        try:
+        ip = self.device(self.dev_name)
-            out = self._as_root([], "link", ("show", self.dev_name))
+        vfs = ip.link.get_vfs()
-        except Exception as e:
-            LOG.exception("Failed executing ip command")
-            raise exc.IpCommandError(dev_name=self.dev_name,
-                                     reason=e)
         vf_to_mac_mapping = {}
-        vf_lines = self._get_vf_link_show(vf_list, out)
+        for vf_num in vf_list:
-        if vf_lines:
+            if vfs.get(vf_num):
-            for vf_line in vf_lines:
+                vf_to_mac_mapping[vf_num] = vfs[vf_num]['mac']
-                vf_details = self._parse_vf_link_show(vf_line)
+
-                if vf_details:
-                    vf_num = vf_details.get('vf')
-                    vf_mac = vf_details.get("MAC")
-                    vf_to_mac_mapping[vf_num] = vf_mac
         return vf_to_mac_mapping
 
     def get_vf_state(self, vf_index):
@@ -100,88 +56,48 @@ class PciDeviceIPWrapper(ip_lib.IPWrapper):
 
         @param vf_index: vf index
         """
-        try:
+        ip = self.device(self.dev_name)
-            out = self._as_root([], "link", ("show", self.dev_name))
+        vfs = ip.link.get_vfs()
-        except Exception as e:
+        vf = vfs.get(vf_index)
-            LOG.exception("Failed executing ip command")
+        if vf:
-            raise exc.IpCommandError(dev_name=self.dev_name,
+            return LinkState(int(vf['link_state'])).name
-                                     reason=e)
+
-        vf_lines = self._get_vf_link_show([vf_index], out)
+        return LinkState.disable.name
-        if vf_lines:
-            vf_details = self._parse_vf_link_show(vf_lines[0])
-            if vf_details:
-                state = vf_details.get("link-state",
-                                       LinkState.DISABLE)
-            if state in (LinkState.AUTO, LinkState.ENABLE):
-                return state
-        return LinkState.DISABLE
 
     def set_vf_state(self, vf_index, state, auto=False):
         """sets vf state.
 
         @param vf_index: vf index
-        @param state: required state {True/False}
+        @param state: required state {True: enable (1)
+                                      False: disable (2)}
+        @param auto: set link_state to auto (0)
         """
+        ip = self.device(self.dev_name)
         if auto:
-            status_str = LinkState.AUTO
+            link_state = 0
         else:
-            status_str = LinkState.ENABLE if state else \
+            link_state = 1 if state else 2
-                LinkState.DISABLE
+        vf_config = {'vf': vf_index, 'link_state': link_state}
-        self._set_feature(vf_index, "state", status_str)
+        ip.link.set_vf_feature(vf_config)
 
     def set_vf_spoofcheck(self, vf_index, enabled):
         """sets vf spoofcheck
 
         @param vf_index: vf index
-        @param enabled: True to enable spoof checking,
+        @param enabled: True to enable (1) spoof checking,
-                        False to disable
+                        False to disable (0)
         """
-        setting = "on" if enabled else "off"
+        ip = self.device(self.dev_name)
-        self._set_feature(vf_index, "spoofchk", setting)
+        vf_config = {'vf': vf_index, 'spoofchk': int(enabled)}
+        ip.link.set_vf_feature(vf_config)
 
     def set_vf_rate(self, vf_index, rate_type, rate_value):
         """sets vf rate.
 
         @param vf_index: vf index
-        @param rate_type: vf rate type ('rate', 'min_tx_rate')
+        @param rate_type: vf rate type ('max_tx_rate', 'min_tx_rate')
         @param rate_value: vf rate in Mbps
         """
-        self._set_feature(vf_index, rate_type, str(rate_value))
+        ip = self.device(self.dev_name)
-
+        vf_config = {'vf': vf_index, 'rate': {rate_type: int(rate_value)}}
-    def _get_vf_link_show(self, vf_list, link_show_out):
+        ip.link.set_vf_feature(vf_config)
-        """Get link show output for VFs
-
-        get vf link show command output filtered by given vf list
-        @param vf_list: list of vf indexes
-        @param link_show_out: link show command output
-        @return: list of output rows regarding given vf_list
-        """
-        vf_lines = []
-        for line in link_show_out.split("\n"):
-            line = line.strip()
-            if line.startswith("vf"):
-                details = line.split()
-                index = int(details[1])
-                if index in vf_list:
-                    vf_lines.append(line)
-        if not vf_lines:
-            LOG.warning("Cannot find vfs %(vfs)s in device %(dev_name)s",
-                        {'vfs': vf_list, 'dev_name': self.dev_name})
-        return vf_lines
-
-    def _parse_vf_link_show(self, vf_line):
-        """Parses vf link show command output line.
-
-        @param vf_line: link show vf line
-        """
-        vf_details = {}
-        pattern_match = self.VF_DETAILS_REG_EX.match(vf_line)
-        if pattern_match:
-            vf_details["vf"] = int(pattern_match.group("vf_index"))
-            vf_details["MAC"] = pattern_match.group("mac")
-            vf_details["link-state"] = pattern_match.group("state")
-        else:
-            LOG.warning("failed to parse vf link show line %(line)s: "
-                        "for %(device)s",
-                        {'line': vf_line, 'device': self.dev_name})
-        return vf_details

neutron/plugins/ml2/drivers/mech_sriov/agent/sriov_nic_agent.py

@@ -31,6 +31,7 @@ from oslo_log import log as logging
 import oslo_messaging
 from oslo_service import loopingcall
 from osprofiler import profiler
+import pyroute2
 import six
 
 from neutron._i18n import _
@@ -48,6 +49,7 @@ from neutron.plugins.ml2.drivers.mech_sriov.agent.common import config
 from neutron.plugins.ml2.drivers.mech_sriov.agent.common \
     import exceptions as exc
 from neutron.plugins.ml2.drivers.mech_sriov.agent import eswitch_manager as esm
+from neutron.privileged.agent.linux import ip_lib as priv_ip_lib
 
 
 LOG = logging.getLogger(__name__)
@@ -292,10 +294,9 @@ class SriovNicSwitchAgent(object):
                 self.eswitch_mgr.set_device_state(device, pci_slot,
                                                   admin_state_up,
                                                   propagate_uplink_state)
-            except exc.IpCommandOperationNotSupportedError:
+            except priv_ip_lib.InterfaceOperationNotSupported:
-                LOG.warning("Device %s does not support state change",
+                LOG.warning("Device %s does not support state change", device)
-                            device)
+            except pyroute2.NetlinkError:
-            except exc.SriovNicError:
                 LOG.warning("Failed to set device %s state", device)
                 return False
         else:

neutron/privileged/agent/linux/ip_lib.py

@@ -86,6 +86,8 @@ def _get_scope_name(scope):
     return rtnl.rt_scope.get(scope, scope)
 
 
+# TODO(ralonsoh): move those exceptions out of priv_ip_lib to avoid other
+# modules to import this one.
 class NetworkNamespaceNotFound(RuntimeError):
     message = _("Network namespace %(netns_name)s could not be found.")
 
@@ -124,6 +126,21 @@ class InterfaceOperationNotSupported(RuntimeError):
         super(InterfaceOperationNotSupported, self).__init__(message)
 
 
+class InvalidArgument(RuntimeError):
+    message = _("Invalid parameter/value used on interface %(device)s, "
+                "namespace %(namespace)s.")
+
+    def __init__(self, message=None, device=None, namespace=None):
+        # NOTE(slaweq): 'message' can be passed as an optional argument
+        # because of how privsep daemon works. If exception is raised in
+        # function called by privsep daemon, it will then try to reraise it
+        # and will call it always with passing only message from originally
+        # raised exception.
+        message = message or self.message % {'device': device,
+                                             'namespace': namespace}
+        super(InvalidArgument, self).__init__(message)
+
+
 class IpAddressAlreadyExists(RuntimeError):
     message = _("IP address %(ip)s already configured on %(device)s.")
 
@@ -258,6 +275,8 @@ def _translate_ip_device_exception(e, device=None, namespace=None):
     if e.code == errno.EOPNOTSUPP:
         raise InterfaceOperationNotSupported(device=device,
                                              namespace=namespace)
+    if e.code == errno.EINVAL:
+        raise InvalidArgument(device=device, namespace=namespace)
 
 
 def get_link_id(device, namespace, raise_exception=True):
@@ -424,6 +443,11 @@ def set_link_attribute(device, namespace, **attributes):
 
 
 @_sync
+@privileged.default.entrypoint
+def set_link_vf_feature(device, namespace, vf_config):
+    return _run_iproute_link("set", device, namespace=namespace, vf=vf_config)
+
+
 @privileged.default.entrypoint
 def get_link_attributes(device, namespace):
     link = _run_iproute_link("get", device, namespace)[0]
@@ -441,6 +465,24 @@ def get_link_attributes(device, namespace):
 
 
 @_sync
+@privileged.default.entrypoint
+def get_link_vfs(device, namespace):
+    link = _run_iproute_link('get', device, namespace=namespace, ext_mask=1)[0]
+    num_vfs = link.get_attr('IFLA_NUM_VF')
+    vfs = {}
+    if not num_vfs:
+        return vfs
+
+    vfinfo_list = link.get_attr('IFLA_VFINFO_LIST')
+    for vinfo in vfinfo_list.get_attrs('IFLA_VF_INFO'):
+        mac = vinfo.get_attr('IFLA_VF_MAC')
+        link_state = vinfo.get_attr('IFLA_VF_LINK_STATE')
+        vfs[mac['vf']] = {'mac': mac['mac'],
+                          'link_state': link_state['link_state']}
+
+    return vfs
+
+
 @privileged.default.entrypoint
 def add_neigh_entry(ip_version, ip_address, mac_address, device, namespace,
                     **kwargs):

neutron/tests/functional/sanity/test_sanity.py

@@ -77,12 +77,6 @@ class SanityTestCaseRoot(base.BaseSudoTestCase):
     def test_icmpv6_header_match_runs(self):
         checks.icmpv6_header_match_supported()
 
-    def test_vf_management_runs(self):
-        checks.vf_management_supported()
-
-    def test_vf_extended_management_runs(self):
-        checks.vf_extended_management_supported()
-
     def test_namespace_root_read_detection_runs(self):
         checks.netns_read_requires_helper()
 

neutron/tests/unit/agent/linux/test_ip_link_support.py

@@ -1,182 +0,0 @@
-# Copyright 2014 Mellanox Technologies, Ltd
-#
-# 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.
-
-
-import mock
-
-from neutron.agent.linux import ip_link_support as ip_link
-from neutron.tests import base
-
-
-class TestIpLinkSupport(base.BaseTestCase):
-    IP_LINK_HELP = """Usage: ip link add [link DEV] [ name ] NAME
-                   [ txqueuelen PACKETS ]
-                   [ address LLADDR ]
-                   [ broadcast LLADDR ]
-                   [ mtu MTU ] [index IDX ]
-                   [ numtxqueues QUEUE_COUNT ]
-                   [ numrxqueues QUEUE_COUNT ]
-                   type TYPE [ ARGS ]
-       ip link delete DEV type TYPE [ ARGS ]
-
-       ip link set { dev DEVICE | group DEVGROUP } [ { up | down } ]
-                          [ arp { on | off } ]
-                          [ dynamic { on | off } ]
-                          [ multicast { on | off } ]
-                          [ allmulticast { on | off } ]
-                          [ promisc { on | off } ]
-                          [ trailers { on | off } ]
-                          [ txqueuelen PACKETS ]
-                          [ name NEWNAME ]
-                          [ address LLADDR ]
-                          [ broadcast LLADDR ]
-                          [ mtu MTU ]
-                          [ netns PID ]
-                          [ netns NAME ]
-                          [ alias NAME ]
-                          [ vf NUM [ mac LLADDR ]
-                                   [ vlan VLANID [ qos VLAN-QOS ] ]
-                                   [ rate TXRATE ] ]
-                                   [ spoofchk { on | off} ] ]
-                                   [ state { auto | enable | disable} ] ]
-                          [ master DEVICE ]
-                          [ nomaster ]
-       ip link show [ DEVICE | group GROUP ] [up]
-
-TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |
-          can | bridge | bond | ipoib | ip6tnl | ipip | sit |
-          vxlan | gre | gretap | ip6gre | ip6gretap | vti }
-    """
-
-    IP_LINK_HELP_NO_STATE = """Usage: ip link add link DEV [ name ] NAME
-                   [ txqueuelen PACKETS ]
-                   [ address LLADDR ]
-                   [ broadcast LLADDR ]
-                   [ mtu MTU ]
-                   type TYPE [ ARGS ]
-       ip link delete DEV type TYPE [ ARGS ]
-
-       ip link set DEVICE [ { up | down } ]
-                          [ arp { on | off } ]
-                          [ dynamic { on | off } ]
-                          [ multicast { on | off } ]
-                          [ allmulticast { on | off } ]
-                          [ promisc { on | off } ]
-                          [ trailers { on | off } ]
-                          [ txqueuelen PACKETS ]
-                          [ name NEWNAME ]
-                          [ address LLADDR ]
-                          [ broadcast LLADDR ]
-                          [ mtu MTU ]
-                          [ netns PID ]
-                          [ alias NAME ]
-                          [ vf NUM [ mac LLADDR ]
-                                   [ vlan VLANID [ qos VLAN-QOS ] ]
-                                   [ rate TXRATE ] ]
-       ip link show [ DEVICE ]
-
-TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | can }
-    """
-
-    IP_LINK_HELP_NO_SPOOFCHK = IP_LINK_HELP_NO_STATE
-
-    IP_LINK_HELP_NO_VF = """Usage: ip link set DEVICE { up | down |
-                             arp { on | off } |
-                             dynamic { on | off } |
-                             multicast { on | off } |
-                             allmulticast { on | off } |
-                             promisc { on | off } |
-                             trailers { on | off } |
-                             txqueuelen PACKETS |
-                             name NEWNAME |
-                             address LLADDR | broadcast LLADDR |
-                             mtu MTU }
-       ip link show [ DEVICE ]
-
-    """
-
-    def _test_capability(self, capability, subcapability=None,
-                         expected=True, stdout="", stderr=""):
-        with mock.patch("neutron.agent.linux.utils.execute") as mock_exec:
-            mock_exec.return_value = (stdout, stderr)
-            vf_section = ip_link.IpLinkSupport.get_vf_mgmt_section()
-            capable = ip_link.IpLinkSupport.vf_mgmt_capability_supported(
-                vf_section, capability, subcapability)
-            self.assertEqual(expected, capable)
-            mock_exec.assert_called_once_with(['ip', 'link', 'help'],
-                                              check_exit_code=False,
-                                              return_stderr=True,
-                                              log_fail_as_error=False)
-
-    def test_vf_mgmt(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-            stderr=self.IP_LINK_HELP)
-
-    def test_execute_with_stdout(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-            stdout=self.IP_LINK_HELP)
-
-    def test_vf_mgmt_no_state(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-            expected=False,
-            stderr=self.IP_LINK_HELP_NO_STATE)
-
-    def test_vf_mgmt_no_spoofchk(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_SPOOFCHK,
-            expected=False,
-            stderr=self.IP_LINK_HELP_NO_SPOOFCHK)
-
-    def test_vf_mgmt_no_vf(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-            expected=False,
-            stderr=self.IP_LINK_HELP_NO_VF)
-
-    def test_vf_mgmt_unknown_capability(self):
-        self._test_capability(
-            "state1",
-            expected=False,
-            stderr=self.IP_LINK_HELP)
-
-    def test_vf_mgmt_sub_capability(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_VLAN,
-            ip_link.IpLinkConstants.IP_LINK_SUB_CAPABILITY_QOS,
-            stderr=self.IP_LINK_HELP)
-
-    def test_vf_mgmt_sub_capability_mismatch(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_STATE,
-            ip_link.IpLinkConstants.IP_LINK_SUB_CAPABILITY_QOS,
-            expected=False,
-            stderr=self.IP_LINK_HELP)
-
-    def test_vf_mgmt_sub_capability_invalid(self):
-        self._test_capability(
-            ip_link.IpLinkConstants.IP_LINK_CAPABILITY_VLAN,
-            "qos1",
-            expected=False,
-            stderr=self.IP_LINK_HELP)
-
-    def test_vf_mgmt_error(self):
-        with mock.patch("neutron.agent.linux.utils.execute") as mock_exec:
-            mock_exec.side_effect = Exception()
-            self.assertRaises(
-                ip_link.UnsupportedIpLinkCommand,
-                ip_link.IpLinkSupport.get_vf_mgmt_section)

neutron/tests/unit/plugins/ml2/drivers/linuxbridge/agent/test_linuxbridge_neutron_agent.py

@@ -454,7 +454,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
                         return_value=vxlan_dev) as add_vxlan_fn,\
                     mock.patch.object(vxlan_dev.link, 'set_mtu',
                         side_effect=ip_lib.InvalidArgument(
-                            parameter="MTU", value=mtu)),\
+                            device='device_exists', namespace='ns')),\
                     mock.patch.object(ip_lib, 'get_device_mtu',
                         return_value=physical_mtu),\
                     mock.patch.object(vxlan_dev.link, 'delete') as delete_dev:

neutron/tests/unit/plugins/ml2/drivers/mech_sriov/agent/extension_drivers/test_qos_driver.py

@@ -21,9 +21,9 @@ from oslo_utils import uuidutils
 
 from neutron.objects.qos import policy
 from neutron.objects.qos import rule
-from neutron.plugins.ml2.drivers.mech_sriov.agent.common import exceptions
 from neutron.plugins.ml2.drivers.mech_sriov.agent.extension_drivers import (
     qos_driver)
+from neutron.privileged.agent.linux import ip_lib as priv_ip_lib
 from neutron.tests import base
 
 
@@ -115,8 +115,16 @@ class QosSRIOVAgentDriverTestCase(base.BaseTestCase):
         self.clear_max_rate_mock.assert_called_once_with(self.PCI_SLOT)
 
     def test__set_vf_max_rate_captures_sriov_failure(self):
-        self.max_rate_mock.side_effect = exceptions.SriovNicError()
+        msg = 'Failed to set device %s max rate'
-        self.qos_driver._set_vf_max_rate(self.ASSIGNED_MAC, self.PCI_SLOT)
+        with mock.patch.object(qos_driver, 'LOG') as mock_log:
+            for exc in (priv_ip_lib.InterfaceOperationNotSupported(),
+                        priv_ip_lib.InvalidArgument()):
+                self.max_rate_mock.side_effect = exc
+                self.qos_driver._set_vf_max_rate(self.ASSIGNED_MAC,
+                                                 self.PCI_SLOT)
+                mock_log.exception.assert_called_once_with(msg,
+                                                           self.ASSIGNED_MAC)
+                mock_log.exception.reset_mock()
 
     def test__set_vf_max_rate_unknown_device(self):
         with mock.patch.object(self.qos_driver.eswitch_mgr, 'device_exists',

neutron/tests/unit/plugins/ml2/drivers/mech_sriov/agent/test_eswitch_manager.py

@@ -18,7 +18,6 @@ import os
 
 import mock
 
-from neutron.agent.linux import ip_link_support
 from neutron.plugins.ml2.drivers.mech_sriov.agent.common \
     import exceptions as exc
 from neutron.plugins.ml2.drivers.mech_sriov.agent import eswitch_manager as esm
@@ -72,8 +71,8 @@ class TestESwitchManagerApi(base.BaseTestCase):
     PCI_SLOT = '0000:06:00.1'
     WRONG_MAC = '00:00:00:00:00:67'
     WRONG_PCI = "0000:06:00.6"
-    MAX_RATE = ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE
+    MAX_RATE = esm.IP_LINK_CAPABILITY_RATE
-    MIN_RATE = ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE
+    MIN_RATE = esm.IP_LINK_CAPABILITY_MIN_TX_RATE
 
     def setUp(self):
         super(TestESwitchManagerApi, self).setUp()
@@ -526,55 +525,48 @@ class TestEmbSwitch(base.BaseTestCase):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
                         "PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
             self.emb_switch.set_device_rate(
-                self.PCI_SLOT,
+                self.PCI_SLOT, esm.IP_LINK_CAPABILITY_RATE, 2000)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2000)
             pci_lib_mock.assert_called_with(
-                0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2)
+                0, esm.IP_LINK_CAPABILITY_RATE, 2)
 
     def test_set_device_max_rate_ok2(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
                         "PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
             self.emb_switch.set_device_rate(
-                self.PCI_SLOT,
+                self.PCI_SLOT, esm.IP_LINK_CAPABILITY_RATE, 99)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 99)
             pci_lib_mock.assert_called_with(
-                0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 1)
+                0, esm.IP_LINK_CAPABILITY_RATE, 1)
 
     def test_set_device_max_rate_rounded_ok(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
                         "PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
             self.emb_switch.set_device_rate(
-                self.PCI_SLOT,
+                self.PCI_SLOT, esm.IP_LINK_CAPABILITY_RATE, 2001)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2001)
+            pci_lib_mock.assert_called_with(0, esm.IP_LINK_CAPABILITY_RATE, 2)
-            pci_lib_mock.assert_called_with(
-                0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2)
 
     def test_set_device_max_rate_rounded_ok2(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
                         "PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
             self.emb_switch.set_device_rate(
-                self.PCI_SLOT,
+                self.PCI_SLOT, esm.IP_LINK_CAPABILITY_RATE, 2499)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2499)
             pci_lib_mock.assert_called_with(
-                0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2)
+                0, esm.IP_LINK_CAPABILITY_RATE, 2)
 
     def test_set_device_max_rate_rounded_ok3(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
                         "PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
             self.emb_switch.set_device_rate(
-                self.PCI_SLOT,
+                self.PCI_SLOT, esm.IP_LINK_CAPABILITY_RATE, 2500)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 2500)
             pci_lib_mock.assert_called_with(
-                0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 3)
+                0, esm.IP_LINK_CAPABILITY_RATE, 3)
 
     def test_set_device_max_rate_disable(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
                         "PciDeviceIPWrapper.set_vf_rate") as pci_lib_mock:
             self.emb_switch.set_device_rate(
-                self.PCI_SLOT,
+                self.PCI_SLOT, esm.IP_LINK_CAPABILITY_RATE, 0)
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 0)
             pci_lib_mock.assert_called_with(
-                0, ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 0)
+                0, esm.IP_LINK_CAPABILITY_RATE, 0)
 
     def test_set_device_max_rate_fail(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."
@@ -583,7 +575,7 @@ class TestEmbSwitch(base.BaseTestCase):
                 exc.InvalidPciSlotError,
                 self.emb_switch.set_device_rate,
                 self.WRONG_PCI_SLOT,
-                ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE, 1000)
+                esm.IP_LINK_CAPABILITY_RATE, 1000)
 
     def test_get_pci_device(self):
         with mock.patch("neutron.plugins.ml2.drivers.mech_sriov.agent.pci_lib."

neutron/tests/unit/plugins/ml2/drivers/mech_sriov/agent/test_pci_lib.py

@@ -16,28 +16,18 @@
 
 import mock
 
-from neutron.agent.linux import ip_link_support
+from neutron.agent.linux import ip_lib
-from neutron.plugins.ml2.drivers.mech_sriov.agent.common \
-    import exceptions as exc
 from neutron.plugins.ml2.drivers.mech_sriov.agent import pci_lib
 from neutron.tests import base
 
 
 class TestPciLib(base.BaseTestCase):
     DEV_NAME = "p7p1"
+
     VF_INDEX = 1
-    VF_INDEX_DISABLE = 0
+    VFS_LIST = {0: {'mac': 'fa:16:3e:b4:81:ac', 'link_state': 2},
-    PF_LINK_SHOW = ('122: p7p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop'
+                1: {'mac': '00:00:00:00:00:11', 'link_state': 1},
-                    ' state DOWN mode DEFAULT group default qlen 1000')
+                2: {'mac': 'fa:16:3e:68:4e:79', 'link_state': 0}}
-    PF_MAC = '    link/ether f4:52:14:2a:3e:c0 brd ff:ff:ff:ff:ff:ff'
-    VF_0_LINK_SHOW = ('    vf 0 MAC fa:16:3e:b4:81:ac, vlan 4095, spoof'
-                      ' checking off, link-state disable')
-    VF_1_LINK_SHOW = ('    vf 1 MAC 00:00:00:00:00:11, vlan 4095, spoof'
-                      ' checking off, link-state enable')
-    VF_2_LINK_SHOW = ('    vf 2 MAC fa:16:3e:68:4e:79, vlan 4095, spoof'
-                      ' checking off, link-state enable')
-    VF_LINK_SHOW = '\n'.join((PF_LINK_SHOW, PF_MAC, VF_0_LINK_SHOW,
-                              VF_1_LINK_SHOW, VF_2_LINK_SHOW))
 
     MAC_MAPPING = {
         0: "fa:16:3e:b4:81:ac",
@@ -45,121 +35,69 @@ class TestPciLib(base.BaseTestCase):
         2: "fa:16:3e:68:4e:79",
     }
 
+    STATE_MAPPING = {  # VF index: state (string), according to VFS_LIST
+        0: pci_lib.LinkState.disable.name,
+        1: pci_lib.LinkState.enable.name,
+        2: pci_lib.LinkState.auto.name,
+    }
+
     def setUp(self):
         super(TestPciLib, self).setUp()
         self.pci_wrapper = pci_lib.PciDeviceIPWrapper(self.DEV_NAME)
+        self.mock_ip_device = mock.Mock()
+        self.mock_ip_device.link.get_vfs.return_value = self.VFS_LIST
+        mock.patch.object(ip_lib, 'IPDevice',
+                          return_value=self.mock_ip_device).start()
 
     def test_get_assigned_macs(self):
-        with mock.patch.object(self.pci_wrapper,
+        for idx in range(len(self.VFS_LIST)):
-                               "_as_root") as mock_as_root:
+            result = self.pci_wrapper.get_assigned_macs([idx])
-            mock_as_root.return_value = self.VF_LINK_SHOW
+            self.assertEqual({idx: self.MAC_MAPPING[idx]}, result)
-            result = self.pci_wrapper.get_assigned_macs([self.VF_INDEX])
-            self.assertEqual(
-                {self.VF_INDEX: self.MAC_MAPPING[self.VF_INDEX]}, result)
 
-    def test_get_assigned_macs_fail(self):
+    def test_get_assigned_macs_not_present(self):
-        with mock.patch.object(self.pci_wrapper,
+        result = self.pci_wrapper.get_assigned_macs([1000])
-                               "_as_root") as mock_as_root:
+        self.assertEqual({}, result)
-            mock_as_root.side_effect = Exception()
-            self.assertRaises(exc.IpCommandError,
-                              self.pci_wrapper.get_assigned_macs,
-                              [self.VF_INDEX])
 
-    def test_get_vf_state_enable(self):
+    def test_get_vf_state(self):
-        with mock.patch.object(self.pci_wrapper,
+        for idx in range(len(self.VFS_LIST)):
-                               "_as_root") as mock_as_root:
+            result = self.pci_wrapper.get_vf_state(idx)
-            mock_as_root.return_value = self.VF_LINK_SHOW
+            self.assertEqual(self.STATE_MAPPING[idx], result)
-            result = self.pci_wrapper.get_vf_state(self.VF_INDEX)
-            self.assertEqual('enable', result)
 
-    def test_get_vf_state_disable(self):
+    def test_get_vf_state_not_present(self):
-        with mock.patch.object(self.pci_wrapper,
+        result = self.pci_wrapper.get_vf_state(1000)
-                               "_as_root") as mock_as_root:
+        self.assertEqual(pci_lib.LinkState.disable.name, result)
-            mock_as_root.return_value = self.VF_LINK_SHOW
-            result = self.pci_wrapper.get_vf_state(self.VF_INDEX_DISABLE)
-            self.assertEqual('disable', result)
-
-    def test_get_vf_state_fail(self):
-        with mock.patch.object(self.pci_wrapper,
-                               "_as_root") as mock_as_root:
-            mock_as_root.side_effect = Exception()
-            self.assertRaises(exc.IpCommandError,
-                              self.pci_wrapper.get_vf_state,
-                              self.VF_INDEX)
 
     def test_set_vf_state(self):
-        with mock.patch.object(self.pci_wrapper, "_as_root"):
+        self.pci_wrapper.set_vf_state(self.VF_INDEX, True)
-            result = self.pci_wrapper.set_vf_state(self.VF_INDEX,
+        vf = {'vf': self.VF_INDEX, 'link_state': 1}
-                                                   True)
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
-            self.assertIsNone(result)
 
-    def test_set_vf_state_fail(self):
+        self.mock_ip_device.link.set_vf_feature.reset_mock()
-        with mock.patch.object(self.pci_wrapper,
+        self.pci_wrapper.set_vf_state(self.VF_INDEX, False)
-                               "_as_root") as mock_as_root:
+        vf = {'vf': self.VF_INDEX, 'link_state': 2}
-            mock_as_root.side_effect = Exception()
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
-            self.assertRaises(exc.IpCommandError,
+
-                              self.pci_wrapper.set_vf_state,
+        self.mock_ip_device.link.set_vf_feature.reset_mock()
-                              self.VF_INDEX,
+        self.pci_wrapper.set_vf_state(self.VF_INDEX, False, auto=True)
-                              True)
+        vf = {'vf': self.VF_INDEX, 'link_state': 0}
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
 
     def test_set_vf_spoofcheck(self):
-        with mock.patch.object(self.pci_wrapper, "_as_root"):
+        self.pci_wrapper.set_vf_spoofcheck(self.VF_INDEX, True)
-            result = self.pci_wrapper.set_vf_spoofcheck(self.VF_INDEX,
+        vf = {'vf': self.VF_INDEX, 'spoofchk': 1}
-                                                        True)
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
-            self.assertIsNone(result)
 
-    def test_set_vf_spoofcheck_fail(self):
+        self.mock_ip_device.link.set_vf_feature.reset_mock()
-        with mock.patch.object(self.pci_wrapper,
+        self.pci_wrapper.set_vf_spoofcheck(self.VF_INDEX, False)
-                               "_as_root") as mock_as_root:
+        vf = {'vf': self.VF_INDEX, 'spoofchk': 0}
-            mock_as_root.side_effect = Exception()
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
-            self.assertRaises(exc.IpCommandError,
-                              self.pci_wrapper.set_vf_spoofcheck,
-                              self.VF_INDEX,
-                              True)
 
-    def _set_vf_rate(self, rate, passed=True):
+    def test_set_vf_rate(self):
-        if passed:
+        self.pci_wrapper.set_vf_rate(self.VF_INDEX, 'max_tx_rate', 20)
-            with mock.patch.object(self.pci_wrapper, "_as_root") \
+        vf = {'vf': self.VF_INDEX, 'rate': {'max_tx_rate': 20}}
-                    as mock_as_root:
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
-                result = self.pci_wrapper.set_vf_rate(
-                    self.VF_INDEX,
-                    ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE,
-                    1000)
-                self.assertIsNone(result)
-                mock_as_root.assert_called_once_with(
-                    [], "link", ("set", self.DEV_NAME, "vf",
-                                 str(self.VF_INDEX), "rate", '1000'))
-        else:
-            with mock.patch.object(self.pci_wrapper, "_as_root",
-                                   side_effect=Exception()):
-                self.assertRaises(exc.IpCommandError,
-                                  self.pci_wrapper.set_vf_rate,
-                                  self.VF_INDEX,
-                                  rate,
-                                  1000)
 
-    def test_set_vf_rate_max_rate(self):
+        self.mock_ip_device.link.set_vf_feature.reset_mock()
-        self._set_vf_rate(
+        self.pci_wrapper.set_vf_rate(self.VF_INDEX, 'min_tx_rate', 10)
-            ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_RATE)
+        vf = {'vf': self.VF_INDEX, 'rate': {'min_tx_rate': 10}}
-
+        self.mock_ip_device.link.set_vf_feature.assert_called_once_with(vf)
-    def test_set_vf_rate_max_rate_fail(self):
-        self._set_vf_rate('rate', passed=False)
-
-    def test_set_vf_rate_min_tx_rate(self):
-        self._set_vf_rate(
-            ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE)
-
-    def test_set_vf_rate_min_tx_rate_fail(self):
-        self._set_vf_rate(
-            ip_link_support.IpLinkConstants.IP_LINK_CAPABILITY_MIN_TX_RATE,
-            passed=False)
-
-    def test_set_vf_state_not_supported(self):
-        with mock.patch.object(self.pci_wrapper,
-                               "_as_root") as mock_as_root:
-            mock_as_root.side_effect = Exception(
-                pci_lib.PciDeviceIPWrapper.IP_LINK_OP_NOT_SUPPORTED)
-            self.assertRaises(exc.IpCommandOperationNotSupportedError,
-                              self.pci_wrapper.set_vf_state,
-                              self.VF_INDEX,
-                              state=True)

neutron/tests/unit/plugins/ml2/drivers/mech_sriov/agent/test_sriov_nic_agent.py

@@ -19,12 +19,13 @@ from neutron_lib.api.definitions import portbindings
 from neutron_lib import constants
 from oslo_config import cfg
 from oslo_utils import uuidutils
+import pyroute2
 
 from neutron.agent.l2 import l2_agent_extensions_manager as l2_ext_manager
 from neutron.agent import rpc as agent_rpc
 from neutron.plugins.ml2.drivers.mech_sriov.agent.common import config  # noqa
-from neutron.plugins.ml2.drivers.mech_sriov.agent.common import exceptions
 from neutron.plugins.ml2.drivers.mech_sriov.agent import sriov_nic_agent
+from neutron.privileged.agent.linux import ip_lib as priv_ip_lib
 from neutron.tests import base
 
 DEVICE_MAC = '11:22:33:44:55:66'
@@ -423,8 +424,7 @@ class TestSriovAgent(base.BaseTestCase):
         agent.eswitch_mgr = mock.Mock()
         agent.eswitch_mgr.device_exists.return_value = True
         agent.eswitch_mgr.set_device_state.side_effect = (
-            exceptions.IpCommandOperationNotSupportedError(
+            priv_ip_lib.InterfaceOperationNotSupported())
-                dev_name='aa:bb:cc:dd:ee:ff'))
 
         self.assertTrue(agent.treat_device('aa:bb:cc:dd:ee:ff', '1:2:3:0',
                                            admin_state_up=True))
@@ -435,7 +435,7 @@ class TestSriovAgent(base.BaseTestCase):
         agent.eswitch_mgr = mock.Mock()
         agent.eswitch_mgr.device_exists.return_value = True
         agent.eswitch_mgr.set_device_state.side_effect = (
-            exceptions.SriovNicError())
+            pyroute2.NetlinkError(22))
 
         self.assertFalse(agent.treat_device('aa:bb:cc:dd:ee:ff', '1:2:3:0',
                                            admin_state_up=True))

neutron/tests/unit/privileged/agent/linux/test_ip_lib.py

@@ -213,6 +213,39 @@ class IpLibTestCase(base.BaseTestCase):
             except OSError as e:
                 self.assertEqual(errno.EINVAL, e.errno)
 
+    def _clean(self, client_mode):
+        priv_lib.privileged.default.client_mode = client_mode
+
+    def test_get_link_vfs(self):
+        # NOTE(ralonsoh): there should be a functional test checking this
+        # method, but this is not possible due to the lack of SR-IOV capable
+        # NICs in the CI servers.
+        vf_info = []
+        for idx in range(3):
+            vf_info.append(pyroute2.netlink.nlmsg_base())
+            mac_info = {'mac': 'mac_%s' % idx, 'vf': idx}
+            link_state = {'link_state': idx}  # see SR-IOV pci_lib.LinkState
+            vf_info[idx].setvalue(
+                {'attrs': [('IFLA_VF_MAC', mac_info),
+                           ('IFLA_VF_LINK_STATE', link_state)]})
+        vfinfo_list = pyroute2.netlink.nlmsg_base()
+        vfinfo_list.setvalue({'attrs': [('IFLA_VF_INFO', vf_info[0]),
+                                        ('IFLA_VF_INFO', vf_info[1]),
+                                        ('IFLA_VF_INFO', vf_info[2])]})
+        value = pyroute2.netlink.nlmsg_base()
+        value.setvalue({'attrs': [('IFLA_NUM_VF', 3),
+                                  ('IFLA_VFINFO_LIST', vfinfo_list)]})
+        client_mode = priv_lib.privileged.default.client_mode
+        priv_lib.privileged.default.client_mode = False
+        self.addCleanup(self._clean, client_mode)
+        with mock.patch.object(priv_lib, '_run_iproute_link') as mock_iplink:
+            mock_iplink.return_value = [value]
+            result = priv_lib.get_link_vfs('device', 'namespace')
+            self.assertEqual({0: {'mac': 'mac_0', 'link_state': 0},
+                              1: {'mac': 'mac_1', 'link_state': 1},
+                              2: {'mac': 'mac_2', 'link_state': 2}},
+                             result)
+
 
 class MakeSerializableTestCase(base.BaseTestCase):