def compare_vf_mac(pf_name, exp_vf_mac):
"""
Compare the current vf's mac address with exp_vf_mac
:param pf_name: The PF's
:param exp_vf_mac: The expected vf's mac address
:raise: TestFail if not match
"""
logging.debug("VF's mac should be %s.", exp_vf_mac)
vf_mac_act = utils_sriov.get_vf_mac(pf_name, is_admin=False)
if exp_vf_mac != vf_mac_act:
test.fail("MAC address changed from '%s' to '%s' after reattaching "
"vf." % (exp_vf_mac, vf_mac_act))
def compare_vf_mac(pf_name, exp_vf_mac):
"""
Compare the current vf's mac address with exp_vf_mac
:param pf_name: The PF's
:param exp_vf_mac: The expected vf's mac address
"""
vf_mac_act = utils_sriov.get_vf_mac(pf_name, is_admin=False)
if exp_vf_mac != vf_mac_act:
logging.error("MAC address changed from '%s' to '%s' after "
"reattaching vf.", exp_vf_mac, vf_mac_act)
else:
logging.debug("VF's mac is still %s.", exp_vf_mac)
def test_hotplug_hostdev_device_with_teaming():
default_vf_mac = utils_sriov.get_vf_mac(pf_name)
utils_sriov.set_vf_mac(pf_name, mac_addr)
logging.info("Attach the bridge interface.")
brg_iface_xml = create_bridge_iface_xml(vm, mac_addr, params)
virsh.attach_device(vm_name,
brg_iface_xml,
debug=True,
ignore_status=False)
# Wait for 10s before attaching the hostdev device
time.sleep(10)
logging.info("Attach the hostdev device.")
hostdev_dev = libvirt.create_hostdev_xml(vf_pci,
teaming=hostdev_teaming_dict)
virsh.attach_device(vm_name,
hostdev_dev.xml,
debug=True,
ignore_status=False)
vm_session = vm.wait_for_serial_login(timeout=240)
ping_ip = get_ping_dest(vm_session, mac_addr)
check_vm_network_accessed(vm_session,
ping_dest=ping_ip,
tcpdump_iface=bridge_name,
tcpdump_status_error=True)
logging.info("Detach the hostdev device.")
virsh.detach_device(vm_name,
hostdev_dev.xml,
wait_remove_event=True,
debug=True,
ignore_status=False)
logging.debug("Recover vf's mac to %s.", default_vf_mac)
utils_sriov.set_vf_mac(pf_name, default_vf_mac)
check_hostdev = vm_xml.VMXML.new_from_dumpxml(vm_name)\
.devices.by_device_tag('hostdev')
if check_hostdev:
test.fail("The hostdev device exists after detaching %s." %
check_hostdev)
libvirt_vfio.check_vfio_pci(vf_pci, status_error=True)
check_vm_network_accessed(vm_session,
2,
ping_dest=ping_ip,
tcpdump_iface=bridge_name,
tcpdump_status_error=False)
def test_vf():
"""
Detach/Reattach a vf when it is used in guest
1) Detach/reattach the device
2) Add the device to VM
3) Start the VM
4) Check driver of the device
5) Detach/reattach the device again
"""
logging.info("Initialize the vfs.")
sriov_base.setup_vf(pf_pci, params)
vf_pci = utils_sriov.get_vf_pci_id(pf_pci)
pf_name = utils_sriov.get_pf_info_by_pci(pf_pci).get('iface')
vf_mac = utils_sriov.get_vf_mac(pf_name, is_admin=False)
logging.debug("VF's mac: %s.", vf_mac)
logging.info("Check the vf's driver, it should not be vfio-pci.")
dev_name = utils_sriov.get_device_name(vf_pci)
check_driver_from_xml(dev_name)
logging.info("Detach and reattach the device and check vf's mac.")
nodedev_test(dev_name, no_reset=True)
utils_misc.wait_for(
lambda: libvirt_vfio.check_vfio_pci(vf_pci, True, True), 10, 5)
compare_vf_mac(pf_name, vf_mac)
logging.info("Cold-plug the device into the VM.")
add_hostdev_iface(vm, vf_pci)
vm.start()
check_hostdev_iface(vm.name)
logging.info("Check the device info. It should be vfio-pci.")
check_driver_from_xml(dev_name, status_error=True)
nodedev_test(dev_name, True)
logging.info("Destroy the vm, and check the vf's mac is recovered.")
vm.destroy(gracefully=False)
compare_vf_mac(pf_name, vf_mac)