def run_set_link(test, params, env):
"""
KVM guest link test:
1) Boot up guest with one nic
2) Ping guest from host
3) Disable guest link and ping guest from host
4) Re-enable guest link and ping guest from host
5) Do file transfer test
@param test: kvm test object
@param params: Dictionary with the test parameters
@param env: Dictionary with test environment.
"""
vm = virt_test_utils.get_living_vm(env, params.get("main_vm"))
timeout = float(params.get("login_timeout", 360))
session = virt_test_utils.wait_for_login(vm, 0, timeout, 0, 2)
def set_link_test(linkid):
"""
Issue set_link commands and test its function
@param linkid: id of netdev or devices to be tested
"""
ip = vm.get_address(0)
vm.set_link(linkid, up=False)
s, o = virt_test_utils.ping(ip, count=10, timeout=20)
if virt_test_utils.get_loss_ratio(o) != 100:
raise error.TestFail("Still can ping the %s after down %s" %
(ip, linkid))
vm.set_link(linkid, up=True)
s, o = virt_test_utils.ping(ip, count=10, timeout=20)
# we use 100% here as the notification of link status changed may be
# delayed in guest driver
if virt_test_utils.get_loss_ratio(o) == 100:
raise error.TestFail("Packet loss during ping %s after up %s" %
(ip, linkid))
netdev_id = vm.netdev_id[0]
device_id = vm.get_peer(netdev_id)
logging.info("Issue set_link commands for netdevs")
set_link_test(netdev_id)
logging.info("Issue set_link commands for network devics")
set_link_test(device_id)
virt_test_utils.run_file_transfer(test, params, env)
session.close()
def run_file_transfer(test, params, env):
virt_test_utils.run_file_transfer(test, params, env)
def run_nic_bonding(test, params, env):
"""
Nic bonding test in guest.
1) Start guest with four nic models.
2) Setup bond0 in guest by script nic_bonding_guest.py.
3) Execute file transfer test between guest and host.
4) Repeatedly put down/up interfaces by set_link
5) Execute file transfer test between guest and host.
@param test: Kvm test object.
@param params: Dictionary with the test parameters.
@param env: Dictionary with test environment.
"""
timeout = int(params.get("login_timeout", 1200))
vm = env.get_vm(params["main_vm"])
vm.verify_alive()
session_serial = vm.wait_for_serial_login(timeout=timeout)
# get params of bonding
modprobe_cmd = "modprobe bonding"
bonding_params = params.get("bonding_params")
if bonding_params:
modprobe_cmd += " %s" % bonding_params
session_serial.cmd(modprobe_cmd)
session_serial.cmd("ifconfig bond0 up")
ifnames = [virt_test_utils.get_linux_ifname(session_serial,
vm.get_mac_address(vlan))
for vlan, nic in enumerate(vm.virtnet)]
setup_cmd = "ifenslave bond0 " + " ".join(ifnames)
session_serial.cmd(setup_cmd)
#do a pgrep to check if dhclient has already been running
pgrep_cmd = "pgrep dhclient"
try:
cmd_output = session_serial.cmd(pgrep_cmd)
#if dhclient is there, killl it
except aexpect.ShellCmdError:
logging.info("it's safe to run dhclient now")
else:
logging.info("dhclient already is running,kill it")
session_serial.cmd("killall -9 dhclient")
time.sleep(1)
session_serial.cmd("dhclient bond0")
try:
logging.info("Test file transfering:")
virt_test_utils.run_file_transfer(test, params, env)
logging.info("Failover test with file transfer")
transfer_thread = utils.InterruptedThread(
virt_test_utils.run_file_transfer,
(test, params, env))
try:
transfer_thread.start()
while transfer_thread.isAlive():
for vlan, nic in enumerate(vm.virtnet):
device_id = vm.get_peer(vm.netdev_id[vlan])
if not device_id:
raise error.TestError("Could not find peer device for"
" nic device %s" % nic)
vm.set_link(device_id, up=False)
time.sleep(1)
vm.set_link(device_id, up=True)
except Exception:
transfer_thread.join(suppress_exception=True)
raise
else:
transfer_thread.join()
finally:
session_serial.sendline("ifenslave -d bond0 " + " ".join(ifnames))
session_serial.sendline("kill -9 `pgrep dhclient`")
def run_nic_bonding(test, params, env):
"""
Nic bonding test in guest.
1) Start guest with four nic models.
2) Setup bond0 in guest by script nic_bonding_guest.py.
3) Execute file transfer test between guest and host.
4) Repeatedly put down/up interfaces by set_link
5) Execute file transfer test between guest and host.
@param test: Kvm test object.
@param params: Dictionary with the test parameters.
@param env: Dictionary with test environment.
"""
timeout = int(params.get("login_timeout", 1200))
vm = env.get_vm(params["main_vm"])
vm.verify_alive()
session_serial = vm.wait_for_serial_login(timeout=timeout)
# get params of bonding
modprobe_cmd = "modprobe bonding"
bonding_params = params.get("bonding_params")
if bonding_params:
modprobe_cmd += " %s" % bonding_params
session_serial.cmd(modprobe_cmd)
session_serial.cmd("ifconfig bond0 up")
ifnames = [
virt_test_utils.get_linux_ifname(session_serial,
vm.get_mac_address(vlan))
for vlan, nic in enumerate(vm.virtnet)
]
setup_cmd = "ifenslave bond0 " + " ".join(ifnames)
session_serial.cmd(setup_cmd)
#do a pgrep to check if dhclient has already been running
pgrep_cmd = "pgrep dhclient"
try:
cmd_output = session_serial.cmd(pgrep_cmd)
#if dhclient is there, killl it
except aexpect.ShellCmdError:
logging.info("it's safe to run dhclient now")
else:
logging.info("dhclient already is running,kill it")
session_serial.cmd("killall -9 dhclient")
time.sleep(1)
session_serial.cmd("dhclient bond0")
try:
logging.info("Test file transfering:")
virt_test_utils.run_file_transfer(test, params, env)
logging.info("Failover test with file transfer")
transfer_thread = utils.InterruptedThread(
virt_test_utils.run_file_transfer, (test, params, env))
try:
transfer_thread.start()
while transfer_thread.isAlive():
for vlan, nic in enumerate(vm.virtnet):
device_id = vm.get_peer(vm.netdev_id[vlan])
if not device_id:
raise error.TestError("Could not find peer device for"
" nic device %s" % nic)
vm.set_link(device_id, up=False)
time.sleep(1)
vm.set_link(device_id, up=True)
except Exception:
transfer_thread.join(suppress_exception=True)
raise
else:
transfer_thread.join()
finally:
session_serial.sendline("ifenslave -d bond0 " + " ".join(ifnames))
session_serial.sendline("kill -9 `pgrep dhclient`")
