"""Interface util library"""
+from time import time, sleep
+from robot.api import logger
from resources.libraries.python.ssh import exec_cmd_no_error
from resources.libraries.python.topology import NodeType, Topology
-from resources.libraries.python.VatExecutor import VatExecutor
+from resources.libraries.python.VatExecutor import VatExecutor, VatTerminal
class InterfaceUtil(object):
Function can be used for DUTs as well as for TGs.
:param node: node where the interface is
- :param interface: interface name
+ :param interface: interface name or sw_if_index
:param state: one of 'up' or 'down'
:type node: dict
- :type interface: str
+ :type interface: str or int
:type state: str
:return: nothing
"""
elif state == 'down':
state = 'admin-down'
else:
- raise Exception('Unexpected interface state: {}'.format(state))
+ raise ValueError('Unexpected interface state: {}'.format(state))
+
+ if isinstance(interface, basestring):
+ sw_if_index = Topology.get_interface_sw_index(node, interface)
+ else:
+ sw_if_index = interface
- sw_if_index = Topology.get_interface_sw_index(node, interface)
VatExecutor.cmd_from_template(node, 'set_if_state.vat',
sw_if_index=sw_if_index, state=state)
cmd = 'ip link set {} {}'.format(interface, state)
exec_cmd_no_error(node, cmd, sudo=True)
else:
- raise Exception('Unknown NodeType: "{}"'.format(node['type']))
+ raise Exception('Node {} has unknown NodeType: "{}"'.
+ format(node['host'], node['type']))
+
+ @staticmethod
+ def set_interface_ethernet_mtu(node, interface, mtu):
+ """Set Ethernet MTU for specified interface.
+
+ Function can be used only for TGs.
+
+ :param node: node where the interface is
+ :param interface: interface name
+ :param mtu: MTU to set
+ :type node: dict
+ :type interface: str
+ :type mtu: int
+ :return: nothing
+ """
+ if node['type'] == NodeType.DUT:
+ ValueError('Node {}: Setting Ethernet MTU for interface '
+ 'on DUT nodes not supported', node['host'])
+ elif node['type'] == NodeType.TG:
+ cmd = 'ip link set {} mtu {}'.format(interface, mtu)
+ exec_cmd_no_error(node, cmd, sudo=True)
+ else:
+ raise ValueError('Node {} has unknown NodeType: "{}"'.
+ format(node['host'], node['type']))
+
+ @staticmethod
+ def set_default_ethernet_mtu_on_all_interfaces_on_node(node):
+ """Set default Ethernet MTU on all interfaces on node.
+
+ Function can be used only for TGs.
+
+ :param node: node where to set default MTU
+ :type node: dict
+ :return: nothing
+ """
+ for ifc in node['interfaces'].values():
+ InterfaceUtil.set_interface_ethernet_mtu(node, ifc['name'], 1500)
+
+ @staticmethod
+ def vpp_node_interfaces_ready_wait(node, timeout=10):
+ """Wait until all interfaces with admin-up are in link-up state.
+
+ :param node: Node to wait on.
+ :param timeout: Waiting timeout in seconds (optional, default 10s)
+ :type node: dict
+ :type timeout: int
+ :raises: RuntimeError if the timeout period value has elapsed.
+ """
+ if_ready = False
+ with VatTerminal(node) as vat:
+ not_ready = []
+ start = time()
+ while not if_ready:
+ out = vat.vat_terminal_exec_cmd('sw_interface_dump')
+ if time() - start > timeout:
+ for interface in out:
+ if interface.get('admin_up_down') == 1:
+ if interface.get('link_up_down') != 1:
+ logger.debug('{0} link-down'.format(
+ interface.get('interface_name')))
+ raise RuntimeError('timeout, not up {0}'.format(not_ready))
+ not_ready = []
+ for interface in out:
+ if interface.get('admin_up_down') == 1:
+ if interface.get('link_up_down') != 1:
+ not_ready.append(interface.get('interface_name'))
+ if not not_ready:
+ if_ready = True
+ else:
+ logger.debug('Interfaces still in link-down state: {0}, '
+ 'waiting...'.format(not_ready))
+ sleep(1)
+
+ @staticmethod
+ def vpp_nodes_interfaces_ready_wait(nodes, timeout=10):
+ """Wait until all interfaces with admin-up are in link-up state for
+ listed nodes.
+
+ :param nodes: List of nodes to wait on.
+ :param timeout: Seconds to wait per node for all interfaces to come up.
+ :type nodes: list
+ :type timeout: int
+ :raises: RuntimeError if the timeout period value has elapsed.
+ """
+ for node in nodes:
+ InterfaceUtil.vpp_node_interfaces_ready_wait(node, timeout)
+
+ @staticmethod
+ def all_vpp_interfaces_ready_wait(nodes, timeout=10):
+ """Wait until all interfaces with admin-up are in link-up state for all
+ nodes in the topology.
+
+ :param nodes: Nodes in the topology.
+ :param timeout: Seconds to wait per node for all interfaces to come up.
+ :type nodes: dict
+ :type timeout: int
+ :raises: RuntimeError if the timeout period value has elapsed.
+ """
+ for node in nodes.values():
+ if node['type'] == NodeType.DUT:
+ InterfaceUtil.vpp_node_interfaces_ready_wait(node, timeout)
Code Review / csit.git / blobdiff