diff options
Diffstat (limited to 'resources/libraries/python/TrafficGenerator.py')
| -rw-r--r-- | resources/libraries/python/TrafficGenerator.py | 127 |
1 files changed, 72 insertions, 55 deletions
diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py index 9e0a1d2735..334e299f3e 100644 --- a/resources/libraries/python/TrafficGenerator.py +++ b/resources/libraries/python/TrafficGenerator.py @@ -18,7 +18,7 @@ from robot.libraries.BuiltIn import BuiltIn 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 @@ -203,9 +203,9 @@ class TrafficGenerator(AbstractMeasurer): 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/" @@ -215,10 +215,10 @@ class TrafficGenerator(AbstractMeasurer): 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 osi_layer == 'L2': if1_adj_addr = if2_addr @@ -229,8 +229,8 @@ class TrafficGenerator(AbstractMeasurer): if2_adj_addr = Topology().get_interface_mac(tg_if2_adj_node, tg_if2_adj_if) elif osi_layer == 'L7': - if1_addr = Topology().get_interface_ip4(tg_node, tg_if1) - if2_addr = Topology().get_interface_ip4(tg_node, tg_if2) + 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, @@ -252,8 +252,7 @@ class TrafficGenerator(AbstractMeasurer): 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" @@ -269,8 +268,7 @@ class TrafficGenerator(AbstractMeasurer): 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" @@ -286,49 +284,68 @@ class TrafficGenerator(AbstractMeasurer): 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 osi_layer == 'L2' or osi_layer == '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 osi_layer == '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): |