from .DropRateSearch import DropRateSearch
from .Constants import Constants
-from .ssh import SSH
+from .ssh import SSH, exec_cmd_no_error
from .topology import NodeType
from .topology import NodeSubTypeTG
from .topology import Topology
def initialize_traffic_generator(
self, tg_node, tg_if1, tg_if2, tg_if1_adj_node, tg_if1_adj_if,
- tg_if2_adj_node, tg_if2_adj_if, test_type, tg_if1_dst_mac=None,
+ tg_if2_adj_node, tg_if2_adj_if, osi_layer, tg_if1_dst_mac=None,
tg_if2_dst_mac=None):
"""TG initialization.
:param tg_if1_adj_if: TG if1 adjecent interface.
:param tg_if2_adj_node: TG if2 adjecent node.
:param tg_if2_adj_if: TG if2 adjecent interface.
- :param test_type: 'L2', 'L3' or 'L7' - OSI Layer testing type.
+ :param osi_layer: 'L2', 'L3' or 'L7' - OSI Layer testing type.
:param tg_if1_dst_mac: Interface 1 destination MAC address.
:param tg_if2_dst_mac: Interface 2 destination MAC address.
:type tg_node: dict
:type tg_if1_adj_if: str
:type tg_if2_adj_node: dict
:type tg_if2_adj_if: str
- :type test_type: str
+ :type osi_layer: str
:type tg_if1_dst_mac: str
:type tg_if2_dst_mac: str
:returns: nothing
raise RuntimeError('Node type is not a TG')
self._node = tg_node
- if tg_node['subtype'] == NodeSubTypeTG.TREX:
+ if self._node['subtype'] == NodeSubTypeTG.TREX:
ssh = SSH()
- ssh.connect(tg_node)
+ ssh.connect(self._node)
(ret, _, _) = ssh.exec_command(
"sudo -E sh -c '{0}/resources/tools/trex/"
if int(ret) != 0:
raise RuntimeError('TRex installation failed.')
- if1_pci = Topology().get_interface_pci_addr(tg_node, tg_if1)
- if2_pci = Topology().get_interface_pci_addr(tg_node, tg_if2)
- if1_addr = Topology().get_interface_mac(tg_node, tg_if1)
- if2_addr = Topology().get_interface_mac(tg_node, tg_if2)
+ if1_pci = Topology().get_interface_pci_addr(self._node, tg_if1)
+ if2_pci = Topology().get_interface_pci_addr(self._node, tg_if2)
+ if1_addr = Topology().get_interface_mac(self._node, tg_if1)
+ if2_addr = Topology().get_interface_mac(self._node, tg_if2)
- if test_type == 'L2':
+ if osi_layer == 'L2':
if1_adj_addr = if2_addr
if2_adj_addr = if1_addr
- elif test_type == 'L3':
+ elif osi_layer == 'L3':
if1_adj_addr = Topology().get_interface_mac(tg_if1_adj_node,
tg_if1_adj_if)
if2_adj_addr = Topology().get_interface_mac(tg_if2_adj_node,
tg_if2_adj_if)
- elif test_type == 'L7':
- if1_addr = Topology().get_interface_ip4(tg_node, tg_if1)
- if2_addr = Topology().get_interface_ip4(tg_node, tg_if2)
+ elif osi_layer == 'L7':
+ if1_addr = Topology().get_interface_ip4(self._node, tg_if1)
+ if2_addr = Topology().get_interface_ip4(self._node, tg_if2)
if1_adj_addr = Topology().get_interface_ip4(tg_if1_adj_node,
tg_if1_adj_if)
if2_adj_addr = Topology().get_interface_ip4(tg_if2_adj_node,
if1_adj_addr, if2_adj_addr = if2_adj_addr, if1_adj_addr
self._ifaces_reordered = True
- if test_type == 'L2' or test_type == 'L3':
+ if osi_layer == 'L2' or osi_layer == 'L3':
(ret, _, _) = ssh.exec_command(
"sudo sh -c 'cat << EOF > /etc/trex_cfg.yaml\n"
- "- port_limit: 2\n"
- " version: 2\n"
+ "- version: 2\n"
" interfaces: [\"{0}\",\"{1}\"]\n"
" port_info:\n"
" - dest_mac: [{2}]\n"
"0x"+if1_addr.replace(":", ",0x"),
"0x"+if2_adj_addr.replace(":", ",0x"),
"0x"+if2_addr.replace(":", ",0x")))
- elif test_type == 'L7':
+ elif osi_layer == 'L7':
(ret, _, _) = ssh.exec_command(
"sudo sh -c 'cat << EOF > /etc/trex_cfg.yaml\n"
- "- port_limit: 2\n"
- " version: 2\n"
+ "- version: 2\n"
" interfaces: [\"{0}\",\"{1}\"]\n"
" port_info:\n"
" - ip: [{2}]\n"
if int(ret) != 0:
raise RuntimeError('TRex config generation error')
- for _ in range(0, 3):
- # kill TRex only if it is already running
- ssh.exec_command(
- "sh -c 'pgrep t-rex && sudo pkill t-rex && sleep 3'")
+ self._startup_trex(osi_layer)
- # configure TRex
- (ret, _, _) = ssh.exec_command(
- "sh -c 'cd {0}/scripts/ && sudo ./trex-cfg'"\
- .format(Constants.TREX_INSTALL_DIR))
- if int(ret) != 0:
- raise RuntimeError('trex-cfg failed')
-
- # start TRex
- if test_type == 'L2' or test_type == 'L3':
- (ret, _, _) = ssh.exec_command(
- "sh -c 'cd {0}/scripts/ && "
- "sudo nohup ./t-rex-64 -i -c 7 --iom 0 > /tmp/trex.log "
- "2>&1 &' > /dev/null"\
- .format(Constants.TREX_INSTALL_DIR))
- elif test_type == 'L7':
- (ret, _, _) = ssh.exec_command(
- "sh -c 'cd {0}/scripts/ && "
- "sudo nohup ./t-rex-64 --astf -i -c 7 --iom 0 > "
- "/tmp/trex.log 2>&1 &' > /dev/null"\
- .format(Constants.TREX_INSTALL_DIR))
- else:
- raise ValueError("Unknown Test Type")
- if int(ret) != 0:
- ssh.exec_command("sh -c 'cat /tmp/trex.log'")
- raise RuntimeError('t-rex-64 startup failed')
-
- # get TRex server info
- (ret, _, _) = ssh.exec_command(
- "sh -c 'sleep 3; "
- "{0}/resources/tools/trex/trex_server_info.py'"\
- .format(Constants.REMOTE_FW_DIR),
- timeout=120)
- if int(ret) == 0:
- # If we get info TRex is running
- return
- # after max retries TRex is still not responding to API
- # critical error occurred
- raise RuntimeError('t-rex-64 startup failed')
+ def _startup_trex(self, osi_layer):
+ """Startup sequence for the TRex traffic generator.
+
+ :param osi_layer: 'L2', 'L3' or 'L7' - OSI Layer testing type.
+ :type osi_layer: str
+ :raises RuntimeError: If node subtype is not a TREX or startup failed.
+ """
+ if self._node['subtype'] != NodeSubTypeTG.TREX:
+ raise RuntimeError('Node subtype is not a TREX!')
+
+ for _ in range(0, 3):
+ # Kill TRex only if it is already running.
+ cmd = "sh -c 'pgrep t-rex && pkill t-rex && sleep 3 || true'"
+ exec_cmd_no_error(
+ self._node, cmd, sudo=True, message='Kill TRex failed!')
+
+ # Configure TRex.
+ ports = ''
+ for port in self._node['interfaces'].values():
+ ports += ' {pci}'.format(pci=port.get('pci_address'))
+
+ cmd = ("sh -c 'cd {dir}/scripts/ && "
+ "./dpdk_nic_bind.py -u {ports} || true'"
+ .format(dir=Constants.TREX_INSTALL_DIR, ports=ports))
+ exec_cmd_no_error(
+ self._node, cmd, sudo=True,
+ message='Unbind PCI ports from driver failed!')
+
+ cmd = ("sh -c 'cd {dir}/scripts/ && ./trex-cfg'"
+ .format(dir=Constants.TREX_INSTALL_DIR))
+ exec_cmd_no_error(
+ self._node, cmd, sudo=True, message='Config TRex failed!')
+
+ # Start TRex.
+ cmd = ("sh -c 'cd {dir}/scripts/ && "
+ "nohup ./t-rex-64 {mode} -i -c 7 > "
+ "/tmp/trex.log 2>&1 &' > /dev/null"
+ .format(dir=Constants.TREX_INSTALL_DIR,
+ mode='--astf' if osi_layer == 'L7' else ''))
+ try:
+ exec_cmd_no_error(self._node, cmd, sudo=True)
+ except RuntimeError:
+ cmd = "sh -c 'cat /tmp/trex.log'"
+ exec_cmd_no_error(self._node, cmd, sudo=True,
+ message='Get TRex logs failed!')
+ raise RuntimeError('Start TRex failed!')
+
+ # Test if TRex starts successfuly.
+ cmd = ("sh -c '{dir}/resources/tools/trex/trex_server_info.py'"
+ .format(dir=Constants.REMOTE_FW_DIR))
+ try:
+ exec_cmd_no_error(
+ self._node, cmd, sudo=True, message='Test TRex failed!',
+ retries=20)
+ except RuntimeError:
+ continue
+ return
+ # After max retries TRex is still not responding to API critical error
+ # occurred.
+ raise RuntimeError('Start TRex failed after multiple retries!')
@staticmethod
def is_trex_running(node):
ssh.connect(self._node)
reorder = self._ifaces_reordered # Just to make the next line fit.
p_0, p_1 = (rx_port, tx_port) if reorder else (tx_port, rx_port)
+ # Values from Robot can introduce type unicode,
+ # we need to encode them, so that repr() does not lead with 'u'.
+ if isinstance(rate, unicode):
+ rate = rate.encode("utf-8")
+ if not isinstance(duration, (float, int)):
+ duration = float(duration)
+ if not isinstance(warmup_time, (float, int)):
+ warmup_time = float(warmup_time)
command = (
"sh -c '{tool}/resources/tools/trex/trex_stateless_profile.py"
" --profile {prof}/resources/traffic_profiles/trex/{traffic}.py"
- " --duration {duration} --frame_size {frame_size} --rate {rate}"
- " --warmup_time {warmup} --port_0 {p_0} --port_1 {p_1}").format(
+ " --duration {duration!r} --frame_size {frame_size} --rate {rate!r}"
+ " --warmup_time {warmup!r} --port_0 {p_0} --port_1 {p_1}").format(
tool=Constants.REMOTE_FW_DIR, prof=Constants.REMOTE_FW_DIR,
traffic=traffic_profile, duration=duration,
frame_size=frame_size, rate=rate, warmup=warmup_time, p_0=p_0,
@staticmethod
def perform_soak_search(
frame_size, traffic_profile, minimum_transmit_rate,
- maximum_transmit_rate, plr_target=1e-7, tdpt=0.2,
- initial_count=50, timeout=1800.0):
+ maximum_transmit_rate, plr_target=1e-7, tdpt=0.1,
+ initial_count=50, timeout=1800.0, trace_enabled=False):
"""Setup initialized TG, perform soak search, return avg and stdev.
:param frame_size: Frame size identifier or value [B].
algorithm = PLRsearch(
measurer=tg_instance, trial_duration_per_trial=tdpt,
packet_loss_ratio_target=plr_target,
- trial_number_offset=initial_count, timeout=timeout)
+ trial_number_offset=initial_count, timeout=timeout,
+ trace_enabled=trace_enabled)
result = algorithm.search(minimum_transmit_rate, maximum_transmit_rate)
return result
Code Review / csit.git / blobdiff