1 # Copyright (c) 2023 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """DUT setup library."""
16 from time import sleep
17 from robot.api import logger
19 from resources.libraries.python.Constants import Constants
20 from resources.libraries.python.ssh import SSH, exec_cmd, exec_cmd_no_error
21 from resources.libraries.python.topology import NodeType, Topology
25 """Contains methods for setting up DUTs."""
28 def get_service_logs(node, service):
29 """Get specific service unit logs from node.
31 :param node: Node in the topology.
32 :param service: Service unit name.
36 command = u"cat /tmp/*supervisor*.log"\
37 if DUTSetup.running_in_container(node) \
38 else f"journalctl --no-pager _SYSTEMD_INVOCATION_ID=$(systemctl " \
39 f"show -p InvocationID --value {service})"
41 message = f"Node {node[u'host']} failed to get logs from unit {service}"
44 node, command, timeout=30, sudo=True, message=message
48 def get_service_logs_on_all_duts(nodes, service):
49 """Get specific service unit logs from all DUTs.
51 :param nodes: Nodes in the topology.
52 :param service: Service unit name.
56 for node in nodes.values():
57 if node[u"type"] == NodeType.DUT:
58 DUTSetup.get_service_logs(node, service)
61 def restart_service(node, service):
62 """Restart the named service on node.
64 :param node: Node in the topology.
65 :param service: Service unit name.
69 command = f"supervisorctl restart {service}" \
70 if DUTSetup.running_in_container(node) \
71 else f"service {service} restart"
72 message = f"Node {node[u'host']} failed to restart service {service}"
75 node, command, timeout=180, sudo=True, message=message
78 DUTSetup.get_service_logs(node, service)
81 def restart_service_on_all_duts(nodes, service):
82 """Restart the named service on all DUTs.
84 :param nodes: Nodes in the topology.
85 :param service: Service unit name.
89 for node in nodes.values():
90 if node[u"type"] == NodeType.DUT:
91 DUTSetup.restart_service(node, service)
94 def start_service(node, service):
95 """Start up the named service on node.
97 :param node: Node in the topology.
98 :param service: Service unit name.
102 # TODO: change command to start once all parent function updated.
103 command = f"supervisorctl restart {service}" \
104 if DUTSetup.running_in_container(node) \
105 else f"service {service} restart"
106 message = f"Node {node[u'host']} failed to start service {service}"
109 node, command, timeout=180, sudo=True, message=message
112 DUTSetup.get_service_logs(node, service)
115 def start_service_on_all_duts(nodes, service):
116 """Start up the named service on all DUTs.
118 :param nodes: Nodes in the topology.
119 :param service: Service unit name.
123 for node in nodes.values():
124 if node[u"type"] == NodeType.DUT:
125 DUTSetup.start_service(node, service)
128 def stop_service(node, service):
129 """Stop the named service on node.
131 :param node: Node in the topology.
132 :param service: Service unit name.
136 DUTSetup.get_service_logs(node, service)
138 command = f"supervisorctl stop {service}" \
139 if DUTSetup.running_in_container(node) \
140 else f"service {service} stop"
141 message = f"Node {node[u'host']} failed to stop service {service}"
144 node, command, timeout=180, sudo=True, message=message
148 def stop_service_on_all_duts(nodes, service):
149 """Stop the named service on all DUTs.
151 :param nodes: Nodes in the topology.
152 :param service: Service unit name.
156 for node in nodes.values():
157 if node[u"type"] == NodeType.DUT:
158 DUTSetup.stop_service(node, service)
161 def kill_program(node, program, namespace=None):
162 """Kill program on the specified topology node.
164 :param node: Topology node.
165 :param program: Program name.
166 :param namespace: Namespace program is running in.
173 if namespace in (None, u"default"):
176 shell_cmd = f"ip netns exec {namespace} sh -c"
178 pgrep_cmd = f"{shell_cmd} \'pgrep -c {program}\'"
179 _, stdout, _ = exec_cmd(node, pgrep_cmd, timeout=cmd_timeout,
182 logger.trace(f"{program} is not running on {host}")
184 exec_cmd(node, f"{shell_cmd} \'pkill {program}\'",
185 timeout=cmd_timeout, sudo=True)
186 for attempt in range(5):
187 _, stdout, _ = exec_cmd(node, pgrep_cmd, timeout=cmd_timeout,
190 logger.trace(f"Attempt {attempt}: {program} is dead on {host}")
193 logger.trace(f"SIGKILLing {program} on {host}")
194 exec_cmd(node, f"{shell_cmd} \'pkill -9 {program}\'",
195 timeout=cmd_timeout, sudo=True)
198 def verify_program_installed(node, program):
199 """Verify that program is installed on the specified topology node.
201 :param node: Topology node.
202 :param program: Program name.
206 cmd = f"command -v {program}"
207 exec_cmd_no_error(node, cmd, message=f"{program} is not installed")
210 def get_pid(node, process, retries=3):
211 """Get PID of running process.
213 :param node: DUT node.
214 :param process: process name.
215 :param retries: How many times to retry on failure.
221 :raises RuntimeError: If it is not possible to get the PID.
223 cmd = f"pidof {process}"
224 stdout, _ = exec_cmd_no_error(
225 node, cmd, retries=retries,
226 message=f"No {process} PID found on node {node[u'host']}")
227 pid_list = stdout.split()
228 return [int(pid) for pid in pid_list]
231 def get_vpp_pids(nodes):
232 """Get PID of running VPP process on all DUTs.
234 :param nodes: DUT nodes.
240 for node in nodes.values():
241 if node[u"type"] == NodeType.DUT:
242 pids[node[u"host"]] = DUTSetup.get_pid(node, u"vpp")
246 def crypto_device_verify(node, crypto_type, numvfs, force_init=False):
247 """Verify if Crypto QAT device virtual functions are initialized on all
248 DUTs. If parameter force initialization is set to True, then try to
249 initialize or remove VFs on QAT.
251 :param node: DUT node.
252 :crypto_type: Crypto device type - HW_DH895xcc, HW_C3xxx or HW_C4xxx.
253 :param numvfs: Number of VFs to initialize, 0 - disable the VFs.
254 :param force_init: If True then try to initialize to specific value.
256 :type crypto_type: string
258 :type force_init: bool
260 :raises RuntimeError: If QAT VFs are not created and force init is set
263 pci_addr = Topology.get_cryptodev(node)
264 sriov_numvfs = DUTSetup.get_sriov_numvfs(node, pci_addr)
266 if sriov_numvfs != numvfs:
268 # QAT is not initialized and we want to initialize with numvfs
269 DUTSetup.crypto_device_init(node, crypto_type, numvfs)
272 f"QAT device failed to create VFs on {node[u'host']}"
276 def crypto_device_init(node, crypto_type, numvfs):
277 """Init Crypto QAT device virtual functions on DUT.
279 :param node: DUT node.
280 :crypto_type: Crypto device type - HW_DH895xcc, HW_C3xxx or HW_C4xxx.
281 :param numvfs: Number of VFs to initialize, 0 - disable the VFs.
283 :type crypto_type: string
286 :raises RuntimeError: If failed to stop VPP or QAT failed to initialize.
288 if crypto_type == u"HW_DH895xcc":
289 kernel_mod = u"qat_dh895xcc"
290 kernel_drv = u"dh895xcc"
291 elif crypto_type == u"HW_C3xxx":
292 kernel_mod = u"qat_c3xxx"
293 kernel_drv = u"c3xxx"
294 elif crypto_type == u"HW_C4xxx":
295 kernel_mod = u"qat_c4xxx"
296 kernel_drv = u"c4xxx"
299 f"Unsupported crypto device type on {node[u'host']}"
302 pci_addr = Topology.get_cryptodev(node)
304 # QAT device must be re-bound to kernel driver before initialization.
305 DUTSetup.verify_kernel_module(node, kernel_mod, force_load=True)
307 # Stop VPP to prevent deadlock.
308 DUTSetup.stop_service(node, Constants.VPP_UNIT)
310 current_driver = DUTSetup.get_pci_dev_driver(
311 node, pci_addr.replace(u":", r"\:")
313 if current_driver is not None:
314 DUTSetup.pci_driver_unbind(node, pci_addr)
316 # Bind to kernel driver.
317 DUTSetup.pci_driver_bind(node, pci_addr, kernel_drv)
319 # Initialize QAT VFs.
321 DUTSetup.set_sriov_numvfs(node, pci_addr, numvfs)
324 def get_virtfn_pci_addr(node, pf_pci_addr, vf_id):
325 """Get PCI address of Virtual Function.
327 :param node: DUT node.
328 :param pf_pci_addr: Physical Function PCI address.
329 :param vf_id: Virtual Function number.
331 :type pf_pci_addr: str
333 :returns: Virtual Function PCI address.
335 :raises RuntimeError: If failed to get Virtual Function PCI address.
337 command = f"sh -c \"basename $(readlink " \
338 f"/sys/bus/pci/devices/{pf_pci_addr}/virtfn{vf_id})\""
339 message = u"Failed to get virtual function PCI address."
341 stdout, _ = exec_cmd_no_error(
342 node, command, timeout=30, sudo=True, message=message
345 return stdout.strip()
348 def get_sriov_numvfs(node, pf_pci_addr):
349 """Get number of SR-IOV VFs.
351 :param node: DUT node.
352 :param pf_pci_addr: Physical Function PCI device address.
354 :type pf_pci_addr: str
355 :returns: Number of VFs.
357 :raises RuntimeError: If PCI device is not SR-IOV capable.
359 pci = pf_pci_addr.replace(u":", r"\:")
360 command = f"cat /sys/bus/pci/devices/{pci}/sriov_numvfs"
361 message = f"PCI device {pf_pci_addr} is not a SR-IOV device."
364 stdout, _ = exec_cmd_no_error(
365 node, command, timeout=30, sudo=True, message=message
368 sriov_numvfs = int(stdout)
371 f"Reading sriov_numvfs info failed on {node[u'host']}"
377 def set_sriov_numvfs(node, pf_pci_addr, numvfs=0):
378 """Init or reset SR-IOV virtual functions by setting its number on PCI
379 device on DUT. Setting to zero removes all VFs.
381 :param node: DUT node.
382 :param pf_pci_addr: Physical Function PCI device address.
383 :param numvfs: Number of VFs to initialize, 0 - removes the VFs.
385 :type pf_pci_addr: str
387 :raises RuntimeError: Failed to create VFs on PCI.
389 cmd = f"test -f /sys/bus/pci/devices/{pf_pci_addr}/sriov_numvfs"
390 sriov_unsupported, _, _ = exec_cmd(node, cmd)
391 # if sriov_numvfs doesn't exist, then sriov_unsupported != 0
392 if int(sriov_unsupported):
394 # sriov is not supported and we want 0 VFs
395 # no need to do anything
399 f"Can't configure {numvfs} VFs on {pf_pci_addr} device "
400 f"on {node[u'host']} since it doesn't support SR-IOV."
403 pci = pf_pci_addr.replace(u":", r"\:")
404 command = f"sh -c \"echo {numvfs} | " \
405 f"tee /sys/bus/pci/devices/{pci}/sriov_numvfs\""
406 message = f"Failed to create {numvfs} VFs on {pf_pci_addr} device " \
407 f"on {node[u'host']}"
410 node, command, timeout=120, sudo=True, message=message
414 def pci_driver_unbind(node, pci_addr):
415 """Unbind PCI device from current driver on node.
417 :param node: DUT node.
418 :param pci_addr: PCI device address.
421 :raises RuntimeError: If PCI device unbind failed.
423 pci = pci_addr.replace(u":", r"\:")
424 command = f"sh -c \"echo {pci_addr} | " \
425 f"tee /sys/bus/pci/devices/{pci}/driver/unbind\""
426 message = f"Failed to unbind PCI device {pci_addr} on {node[u'host']}"
429 node, command, timeout=120, sudo=True, message=message
433 def unbind_pci_devices_from_other_driver(node, driver, *pci_addrs):
434 """Unbind PCI devices from driver other than input driver on node.
436 :param node: DUT node.
437 :param driver: Driver to not unbind from. If None or empty string,
438 will attempt to unbind from the current driver.
439 :param pci_addrs: PCI device addresses.
442 :type pci_addrs: list
444 for pci_addr in pci_addrs:
445 cur_driver = DUTSetup.get_pci_dev_driver(node, pci_addr)
448 if not driver or cur_driver != driver:
449 DUTSetup.pci_driver_unbind(node, pci_addr)
452 def pci_driver_bind(node, pci_addr, driver):
453 """Bind PCI device to driver on node.
455 :param node: DUT node.
456 :param pci_addr: PCI device address.
457 :param driver: Driver to bind.
461 :raises RuntimeError: If PCI device bind failed.
463 message = f"Failed to bind PCI device {pci_addr} to {driver} " \
464 f"on host {node[u'host']}"
465 pci = pci_addr.replace(u":", r"\:")
466 command = f"sh -c \"echo {driver} | " \
467 f"tee /sys/bus/pci/devices/{pci}/driver_override\""
470 node, command, timeout=120, sudo=True, message=message
473 command = f"sh -c \"echo {pci_addr} | " \
474 f"tee /sys/bus/pci/drivers/{driver}/bind\""
477 node, command, timeout=120, sudo=True, message=message
480 command = f"sh -c \"echo | " \
481 f"tee /sys/bus/pci/devices/{pci}/driver_override\""
484 node, command, timeout=120, sudo=True, message=message
488 def pci_vf_driver_unbind(node, pf_pci_addr, vf_id):
489 """Unbind Virtual Function from driver on node.
491 :param node: DUT node.
492 :param pf_pci_addr: PCI device address.
493 :param vf_id: Virtual Function ID.
495 :type pf_pci_addr: str
497 :raises RuntimeError: If Virtual Function unbind failed.
499 vf_pci_addr = DUTSetup.get_virtfn_pci_addr(node, pf_pci_addr, vf_id)
500 pf_pci = pf_pci_addr.replace(u":", r"\:")
501 vf_path = f"/sys/bus/pci/devices/{pf_pci}/virtfn{vf_id}"
503 command = f"sh -c \"echo {vf_pci_addr} | tee {vf_path}/driver/unbind\""
504 message = f"Failed to unbind VF {vf_pci_addr} on {node[u'host']}"
507 node, command, timeout=120, sudo=True, message=message
511 def pci_vf_driver_bind(node, pf_pci_addr, vf_id, driver):
512 """Bind Virtual Function to driver on node.
514 :param node: DUT node.
515 :param pf_pci_addr: PCI device address.
516 :param vf_id: Virtual Function ID.
517 :param driver: Driver to bind.
519 :type pf_pci_addr: str
522 :raises RuntimeError: If PCI device bind failed.
524 vf_pci_addr = DUTSetup.get_virtfn_pci_addr(node, pf_pci_addr, vf_id)
525 pf_pci = pf_pci_addr.replace(u":", r'\:')
526 vf_path = f"/sys/bus/pci/devices/{pf_pci}/virtfn{vf_id}"
528 message = f"Failed to bind VF {vf_pci_addr} to {driver} " \
529 f"on {node[u'host']}"
530 command = f"sh -c \"echo {driver} | tee {vf_path}/driver_override\""
533 node, command, timeout=120, sudo=True, message=message
536 command = f"sh -c \"echo {vf_pci_addr} | " \
537 f"tee /sys/bus/pci/drivers/{driver}/bind\""
540 node, command, timeout=120, sudo=True, message=message
543 command = f"sh -c \"echo | tee {vf_path}/driver_override\""
546 node, command, timeout=120, sudo=True, message=message
550 def get_pci_dev_driver(node, pci_addr):
551 """Get current PCI device driver on node.
553 :param node: DUT node.
554 :param pci_addr: PCI device address.
557 :returns: Driver or None
558 :raises RuntimeError: If it is not possible to get the interface driver
559 information from the node.
561 driver_path = f"/sys/bus/pci/devices/{pci_addr}/driver"
562 cmd = f"test -d {driver_path}"
563 ret_code, ret_val, _ = exec_cmd(node, cmd)
565 # the directory doesn't exist which means the device is not bound
568 cmd = f"basename $(readlink -f {driver_path})"
569 ret_val, _ = exec_cmd_no_error(node, cmd)
570 return ret_val.strip()
573 def verify_kernel_module(node, module, force_load=False):
574 """Verify if kernel module is loaded on node. If parameter force
575 load is set to True, then try to load the modules.
578 :param module: Module to verify.
579 :param force_load: If True then try to load module.
582 :type force_load: bool
583 :raises RuntimeError: If module is not loaded or failed to load.
585 command = f"grep -w {module} /proc/modules"
586 message = f"Kernel module {module} is not loaded " \
587 f"on host {node[u'host']}"
591 node, command, timeout=30, sudo=False, message=message
595 # Module is not loaded and we want to load it
596 DUTSetup.load_kernel_module(node, module)
601 def verify_kernel_module_on_all_duts(nodes, module, force_load=False):
602 """Verify if kernel module is loaded on all DUTs. If parameter force
603 load is set to True, then try to load the modules.
605 :param nodes: DUT nodes.
606 :param module: Module to verify.
607 :param force_load: If True then try to load module.
610 :type force_load: bool
612 for node in nodes.values():
613 if node[u"type"] == NodeType.DUT:
614 DUTSetup.verify_kernel_module(node, module, force_load)
617 def verify_uio_driver_on_all_duts(nodes):
618 """Verify if uio driver kernel module is loaded on all DUTs. If module
619 is not present it will try to load it.
621 :param nodes: DUT nodes.
624 for node in nodes.values():
625 if node[u"type"] == NodeType.DUT:
626 uio_driver = Topology.get_uio_driver(node)
627 DUTSetup.verify_kernel_module(node, uio_driver, force_load=True)
630 def load_kernel_module(node, module):
631 """Load kernel module on node.
633 :param node: DUT node.
634 :param module: Module to load.
638 :raises RuntimeError: If loading failed.
640 command = f"modprobe {module}"
641 message = f"Failed to load {module} on host {node[u'host']}"
643 exec_cmd_no_error(node, command, timeout=30, sudo=True, message=message)
646 def install_vpp_on_all_duts(nodes, vpp_pkg_dir):
647 """Install VPP on all DUT nodes. Start the VPP service in case of
648 systemd is not available or does not support autostart.
650 :param nodes: Nodes in the topology.
651 :param vpp_pkg_dir: Path to directory where VPP packages are stored.
653 :type vpp_pkg_dir: str
654 :raises RuntimeError: If failed to remove or install VPP.
656 for node in nodes.values():
657 message = f"Failed to install VPP on host {node[u'host']}!"
658 if node[u"type"] == NodeType.DUT:
659 command = u"ln -s /dev/null /etc/sysctl.d/80-vpp.conf || true"
660 exec_cmd_no_error(node, command, sudo=True)
662 command = u". /etc/lsb-release; echo \"${DISTRIB_ID}\""
663 stdout, _ = exec_cmd_no_error(node, command)
665 if stdout.strip() == u"Ubuntu":
667 node, u"apt-get purge -y '*vpp*' || true",
668 timeout=120, sudo=True
670 # workaround to avoid installation of vpp-api-python
672 node, f"rm -f {vpp_pkg_dir}vpp-api-python.deb",
673 timeout=120, sudo=True
676 node, f"dpkg -i --force-all {vpp_pkg_dir}*.deb",
677 timeout=120, sudo=True, message=message
679 exec_cmd_no_error(node, u"dpkg -l | grep vpp", sudo=True)
680 if DUTSetup.running_in_container(node):
681 DUTSetup.restart_service(node, Constants.VPP_UNIT)
684 node, u"yum -y remove '*vpp*' || true",
685 timeout=120, sudo=True
687 # workaround to avoid installation of vpp-api-python
689 node, f"rm -f {vpp_pkg_dir}vpp-api-python.rpm",
690 timeout=120, sudo=True
693 node, f"rpm -ivh {vpp_pkg_dir}*.rpm",
694 timeout=120, sudo=True, message=message
696 exec_cmd_no_error(node, u"rpm -qai '*vpp*'", sudo=True)
697 DUTSetup.restart_service(node, Constants.VPP_UNIT)
700 def running_in_container(node):
701 """This method tests if topology node is running inside container.
703 :param node: Topology node.
705 :returns: True if running in docker container, false if not or failed
709 command = u"fgrep docker /proc/1/cgroup"
710 message = u"Failed to get cgroup settings."
713 node, command, timeout=30, sudo=False, message=message
720 def get_docker_mergeddir(node, uuid):
721 """Get Docker overlay for MergedDir diff.
723 :param node: DUT node.
724 :param uuid: Docker UUID.
727 :returns: Docker container MergedDir.
729 :raises RuntimeError: If getting output failed.
731 command = f"docker inspect " \
732 f"--format='{{{{.GraphDriver.Data.MergedDir}}}}' {uuid}"
733 message = f"Failed to get directory of {uuid} on host {node[u'host']}"
735 stdout, _ = exec_cmd_no_error(node, command, sudo=True, message=message)
736 return stdout.strip()
739 def get_hugepages_info(node, hugesize=None):
740 """Get number of huge pages in system.
742 :param node: Node in the topology.
743 :param hugesize: Size of hugepages. Default system huge size if None.
746 :returns: Number of huge pages in system.
748 :raises RuntimeError: If reading failed.
751 hugesize = "$(grep Hugepagesize /proc/meminfo | awk '{ print $2 }')"
752 command = f"cat /sys/kernel/mm/hugepages/hugepages-{hugesize}kB/*"
753 stdout, _ = exec_cmd_no_error(node, command)
755 line = stdout.splitlines()
757 "free_hugepages": int(line[0]),
758 "nr_hugepages": int(line[1]),
759 "nr_hugepages_mempolicy": int(line[2]),
760 "nr_overcommit_hugepages": int(line[3]),
761 "resv_hugepages": int(line[4]),
762 "surplus_hugepages": int(line[5])
765 logger.trace(u"Reading huge pages information failed!")
769 node, huge_mnt, mem_size, hugesize=2048, allocate=False):
770 """Check if there is enough HugePages in system. If allocate is set to
771 true, try to allocate more HugePages.
773 :param node: Node in the topology.
774 :param huge_mnt: HugePage mount point.
775 :param mem_size: Reqeusted memory in MB.
776 :param hugesize: HugePage size in KB.
777 :param allocate: Whether to allocate more memory if not enough.
783 :raises RuntimeError: Mounting hugetlbfs failed or not enough HugePages
784 or increasing map count failed.
786 # Get huge pages information.
787 hugepages = DUTSetup.get_hugepages_info(node, hugesize=hugesize)
789 # Check if hugepages requested are available on node.
790 if hugepages[u"nr_overcommit_hugepages"]:
791 # If overcommit is used, we need to know how many additional pages
793 huge_available = hugepages[u"nr_overcommit_hugepages"] - \
794 hugepages[u"surplus_hugepages"]
796 # Fallbacking to free_hugepages which were used before to detect.
797 huge_available = hugepages[u"free_hugepages"]
799 if ((mem_size * 1024) // hugesize) > huge_available:
800 # If we want to allocate hugepage dynamically.
802 huge_needed = ((mem_size * 1024) // hugesize) - huge_available
803 huge_to_allocate = huge_needed + hugepages[u"nr_hugepages"]
804 max_map_count = huge_to_allocate * 4
805 # Check if huge pages mount point exist.
807 exec_cmd_no_error(node, u"fgrep 'hugetlbfs' /proc/mounts")
809 exec_cmd_no_error(node, f"mkdir -p {huge_mnt}", sudo=True)
812 f"mount -t hugetlbfs -o pagesize={hugesize}k none "
815 # Increase maximum number of memory map areas for process.
818 f"echo \"{max_map_count}\" | "
819 f"sudo tee /proc/sys/vm/max_map_count",
820 message=f"Increase map count failed on {node[u'host']}!"
822 # Increase hugepage count.
825 f"echo \"{huge_to_allocate}\" | "
826 f"sudo tee /proc/sys/vm/nr_hugepages",
827 message=f"Mount huge pages failed on {node[u'host']}!"
829 # If we do not want to allocate dynamically end with error.
832 f"Not enough availablehuge pages: {huge_available}!"