# 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 ssh import SSH
+
+"""Performance testing traffic generator library."""
+
from robot.api import logger
+from resources.libraries.python.ssh import SSH
+from resources.libraries.python.topology import NodeType
+from resources.libraries.python.topology import NodeSubTypeTG
+from resources.libraries.python.topology import Topology
+
__all__ = ['TrafficGenerator']
class TrafficGenerator(object):
+ """Traffic Generator"""
+
+ ROBOT_LIBRARY_SCOPE = 'TEST SUITE'
def __init__(self):
self._result = None
self._loss = None
self._sent = None
self._received = None
+ #T-REX interface order mapping
+ self._ifaces_reordered = 0
+
+ def initialize_traffic_generator(self, tg_node, tg_if1, tg_if2,
+ dut1_node, dut1_if1, dut1_if2,
+ dut2_node, dut2_if1, dut2_if2,
+ test_type):
+ """TG initialization
+ :param tg_node: Traffic generator node
+ :param tg_if1: TG - name of first interface
+ :param tg_if2: TG - name of second interface
+ :param dut1_node: DUT1 node
+ :param dut1_if1: DUT1 - name of first interface
+ :param dut1_if2: DUT1 - name of second interface
+ :param dut2_node: DUT2 node
+ :param dut2_if1: DUT2 - name of first interface
+ :param dut2_if2: DUT2 - name of second interface
+ :test_type: 'L2' or 'L3' - src/dst MAC address
+ :type tg_node: dict
+ :type tg_if1: str
+ :type tg_if2: str
+ :type dut1_node: dict
+ :type dut1_if1: str
+ :type dut1_if2: str
+ :type dut2_node: dict
+ :type dut2_if1: str
+ :type dut2_if2: str
+ :type test_type: str
+ :return: nothing
+ """
+
+ trex_path = "/opt/trex-core-1.91"
+
+ topo = Topology()
+
+ if tg_node['type'] != NodeType.TG:
+ raise Exception('Node type is not a TG')
+ if tg_node['subtype'] == NodeSubTypeTG.TREX:
+ ssh = SSH()
+ ssh.connect(tg_node)
+
+ if1_pci = topo.get_interface_pci_addr(tg_node, tg_if1)
+ if2_pci = topo.get_interface_pci_addr(tg_node, tg_if2)
+ if1_mac = topo.get_interface_mac(tg_node, tg_if1)
+ if2_mac = topo.get_interface_mac(tg_node, tg_if2)
+
+ if test_type == 'L2':
+ if1_adj_mac = if2_mac
+ if2_adj_mac = if1_mac
+ elif test_type == 'L3':
+ if1_adj_mac = topo.get_interface_mac(dut1_node, dut1_if1)
+ if2_adj_mac = topo.get_interface_mac(dut2_node, dut2_if2)
+ else:
+ raise Exception("test_type unknown")
+
+ if min(if1_pci, if2_pci) != if1_pci:
+ if1_mac, if2_mac = if2_mac, if1_mac
+ if1_pci, if2_pci = if2_pci, if1_pci
+ if1_adj_mac, if2_adj_mac = if2_adj_mac, if1_adj_mac
+ self._ifaces_reordered = 1
+
+ if1_mac_hex = "0x"+if1_mac.replace(":", ",0x")
+ if2_mac_hex = "0x"+if2_mac.replace(":", ",0x")
+ if1_adj_mac_hex = "0x"+if1_adj_mac.replace(":", ",0x")
+ if2_adj_mac_hex = "0x"+if2_adj_mac.replace(":", ",0x")
+
+ (ret, stdout, stderr) = ssh.exec_command(
+ "sudo sh -c 'cat << EOF > /etc/trex_cfg.yaml\n"
+ "- port_limit : 2\n"
+ " version : 2\n"
+ " interfaces : [\"{}\",\"{}\"]\n"
+ " port_info :\n"
+ " - dest_mac : [{}]\n"
+ " src_mac : [{}]\n"
+ " - dest_mac : [{}]\n"
+ " src_mac : [{}]\n"
+ "EOF'"\
+ .format(if1_pci, if2_pci,
+ if1_adj_mac_hex, if1_mac_hex,
+ if2_adj_mac_hex, if2_mac_hex))
+ if int(ret) != 0:
+ logger.error("failed to create t-rex config: {}"\
+ .format(stdout + stderr))
+ raise RuntimeError('trex config generation error')
+ (ret, stdout, stderr) = ssh.exec_command(
+ "sh -c 'cd {0}/scripts/ && "
+ "sudo ./trex-cfg'"\
+ .format(trex_path))
+ if int(ret) != 0:
+ logger.error('trex-cfg failed: {0}'.format(stdout + stderr))
+ raise RuntimeError('trex-cfg failed')
+
+ (ret, _, _) = ssh.exec_command(
+ "sh -c 'cd {0}/scripts/ && "
+ "sudo nohup ./t-rex-64 -i -c 4 --iom 0 > /dev/null 2>&1 &'"
+ "> /dev/null"\
+ .format(trex_path))
+ if int(ret) != 0:
+ raise RuntimeError('t-rex-64 startup failed')
+
+ @staticmethod
+ def teardown_traffic_generator(node):
+ """TG teardown
+ :param node: Traffic generator node
+ :type node: dict
+ :return: nothing
+ """
+
+ if node['type'] != NodeType.TG:
+ raise Exception('Node type is not a TG')
+ if node['subtype'] == NodeSubTypeTG.TREX:
+ ssh = SSH()
+ ssh.connect(node)
+ (ret, stdout, stderr) = ssh.exec_command(
+ "sh -c 'sudo pkill t-rex'")
+ if int(ret) != 0:
+ logger.error('pkill t-rex failed: {0}'.format(stdout + stderr))
+ raise RuntimeError('pkill t-rex failed')
+
+ def send_traffic_on(self, nodes_info, duration, rate,
+ framesize, traffic_type):
+ """Send traffic from all configured interfaces on TG
+ :param nodes_info: Dictionary containing information on all nodes
+ in topology.
+ :param duration: Duration of test traffic generation in seconds
+ :param rate: Offered load per interface (e.g. 1%, 3gbps, 4mpps, ...)
+ :param framesize: Frame size (L2) in Bytes
+ :param traffic_type: Traffic profile
+ :type nodes_info: dict
+ :type duration: str
+ :type rate: str
+ :type framesize: str
+ :type traffic_type: str
+ :return: TG output
+ :rtype: str
+ """
+
+ node = nodes_info["TG"]
+
+ if node['type'] != NodeType.TG:
+ raise Exception('Node type is not a TG')
+
+ if node['subtype'] is None:
+ raise Exception('TG subtype not defined')
- def send_traffic_on(self, node, tx_port, rx_port, duration, rate,
- framesize):
ssh = SSH()
ssh.connect(node)
- (ret, stdout, stderr) = ssh.exec_command(
- "sh -c 'cd MoonGen && sudo -S build/MoonGen "
- "rfc2544/benchmarks/vpp-frameloss.lua --txport 0 --rxport 1 "
- "--duration {0} --rate {1} --framesize {2}'".format(
- duration, rate, framesize),
- timeout=int(duration)+60)
+ if node['subtype'] == NodeSubTypeTG.TREX:
+
+ _p0 = 1
+ _p1 = 2
+
+ if self._ifaces_reordered != 0:
+ _p0, _p1 = _p1, _p0
+
+ if traffic_type in ["3-node-xconnect", "3-node-bridge"]:
+ (ret, stdout, stderr) = ssh.exec_command(
+ "sh -c '/tmp/openvpp-testing/resources/tools/t-rex/"
+ "t-rex-stateless.py "
+ "-d {0} -r {1} -s {2} "
+ "--p{3}_src_start_ip 10.10.10.1 "
+ "--p{3}_src_end_ip 10.10.10.254 "
+ "--p{3}_dst_start_ip 20.20.20.1 "
+ "--p{4}_src_start_ip 20.20.20.1 "
+ "--p{4}_src_end_ip 20.20.20.254 "
+ "--p{4}_dst_start_ip 10.10.10.1'".\
+ format(duration, rate, framesize, _p0, _p1),\
+ timeout=int(duration)+60)
+ elif traffic_type in ["3-node-IPv4"]:
+ (ret, stdout, stderr) = ssh.exec_command(
+ "sh -c '/tmp/openvpp-testing/resources/tools/t-rex/"
+ "t-rex-stateless.py "
+ "-d {0} -r {1} -s {2} "
+ "--p{3}_src_start_ip 10.10.10.2 "
+ "--p{3}_src_end_ip 10.10.10.254 "
+ "--p{3}_dst_start_ip 20.20.20.2 "
+ "--p{4}_src_start_ip 20.20.20.2 "
+ "--p{4}_src_end_ip 20.20.20.254 "
+ "--p{4}_dst_start_ip 10.10.10.2'".\
+ format(duration, rate, framesize, _p0, _p1),\
+ timeout=int(duration)+60)
+ else:
+ raise NotImplementedError('Unsupported traffic type')
+
+ else:
+ raise NotImplementedError("TG subtype not supported")
logger.trace(ret)
logger.trace(stdout)
return self._result
def no_traffic_loss_occured(self):
+ """Fail is loss occured in traffic run
+ :return: nothing
+ """
+
if self._loss is None:
raise Exception('The traffic generation has not been issued')
if self._loss != '0':
Code Review / csit.git / blobdiff