new file mode 100644
@@ -0,0 +1,128 @@
+import logging, commands, threading, re, os
+from autotest_lib.client.common_lib import error
+import kvm_utils, kvm_test_utils, kvm_net_utils
+
+def run_nicdriver_unload(test, params, env):
+ """
+ Test nic driver
+
+ 1) Boot a vm
+ 2) Get the nic driver name
+ 3) Repeatedly unload/load nic driver
+ 4) Multi-session TCP transfer on test interface
+ 5) Check the test interface should still work
+
+ @param test: KVM test object
+ @param params: Dictionary with the test parameters
+ @param env: Dictionary with test environment.
+ """
+ timeout = int(params.get("login_timeout", 360))
+ vm = kvm_test_utils.get_living_vm(env, params.get("main_vm"))
+ session = kvm_test_utils.wait_for_login(vm, timeout=timeout)
+ logging.info("Trying to log into guest '%s' by serial", vm.name)
+ session2 = kvm_utils.wait_for(lambda: vm.serial_login(),
+ timeout, 0, step=2)
+ if not session2:
+ raise error.TestFail("Could not log into guest '%s'" % vm.name)
+
+ ethname = kvm_net_utils.get_linux_ifname(session, vm.get_macaddr(0))
+ try:
+ # FIXME: Try three waies to get nic driver name, because the
+ # modprobe.conf is dropped in latest system, and ethtool method is not
+ # supported by virtio_nic.
+
+ output = session.get_command_output("cat /etc/modprobe.conf")
+ driver = re.findall(r'%s (\w+)' % ethname,output)
+ if not driver:
+ output = session.get_command_output("ethtool -i %s" % ethname)
+ driver = re.findall(r'driver: (\w+)', output)
+ if not driver:
+ output = session.get_command_output("lspci -k")
+ driver = re.findall("Ethernet controller.*\n.*\n.*Kernel driver"
+ " in use: (\w+)", output)
+ driver = driver[0]
+ except IndexError:
+ raise error.TestError("Could not find driver name")
+
+ logging.info("driver is %s" % driver)
+
+ class ThreadScp(threading.Thread):
+ def run(self):
+ remote_file = '/tmp/' + self.getName()
+ file_list.append(remote_file)
+ ret = vm.copy_files_to(file_name, remote_file, timeout=scp_timeout)
+ logging.debug("Copy result of %s: %s" % (remote_file, ret))
+
+ def compare(origin_file, receive_file):
+ cmd = "md5sum %s"
+ output1 = commands.getstatusoutput(cmd % origin_file)[1].strip()
+ check_sum1 = output1.split()[0]
+ s, output2 = session.get_command_status_output(cmd % receive_file)
+ if s != 0:
+ logging.error("Could not get md5sum of receive_file")
+ return False
+ check_sum2 = output2.strip().split()[0]
+ logging.debug("origin: %s, receive: %s" % (check_sum1, check_sum2))
+ if check_sum1 != check_sum2:
+ logging.error("md5sum doesn't match")
+ return False
+ return True
+
+ #produce sized file in host
+ file_size = params.get("file_size")
+ file_name = "/tmp/nicdriver_unload_file"
+ cmd = "dd if=/dev/urandom of=%s bs=%sM count=1"
+ s, o = commands.getstatusoutput(cmd % (file_name, file_size))
+ if s != 0:
+ raise error.TestFail("Fail to create file by dd")
+
+ connect_time = params.get("connect_time")
+ scp_timeout = int(params.get("scp_timeout"))
+ thread_num = int(params.get("thread_num"))
+ file_list = []
+
+ unload_load_cmd = "sleep %s && ifconfig %s down && modprobe -r %s && "
+ unload_load_cmd += "sleep 1 && modprobe %s && ifconfig %s up"
+ unload_load_cmd = unload_load_cmd % (connect_time, ethname, driver,
+ driver, ethname)
+ pid = os.fork()
+ if pid != 0:
+ logging.info("unload/load nic driver repeatedly in guest...")
+ while True:
+ logging.debug("Try to unload/load nic drive once")
+ if session2.get_command_status(unload_load_cmd, timeout=120) != 0:
+ session.get_command_output("rm -rf /tmp/Thread-*")
+ raise error.TestFail("Unload/load nic driver failed")
+ pid, s = os.waitpid(pid, os.WNOHANG)
+ status = os.WEXITSTATUS(s)
+ if (pid, status) != (0, 0):
+ logging.debug("Child process ending")
+ break
+ else:
+ logging.info("Multi-session tcp data transfer")
+ threads = []
+ for i in range(thread_num):
+ t = ThreadScp()
+ t.start()
+ threads.append(t)
+ for t in threads:
+ t.join(timeout = scp_timeout)
+ os._exit(0)
+
+ session2.close()
+
+ try:
+ logging.info("Check md5sum for received files in multi-session")
+ for f in file_list:
+ if not compare(file_name, f):
+ raise error.TestFail("Fail to compare (guest)file %s" % f)
+
+ logging.info("Test nic function after load/unload")
+ if not vm.copy_files_to(file_name, file_name):
+ raise error.TestFail("Fail to copy file from host to guest")
+ if not compare(file_name, file_name):
+ raise error.TestFail("Test nic function after load/unload fail")
+
+ finally:
+ session.get_command_output("rm -rf /tmp/Thread-*")
+ session.close()
@@ -362,6 +362,14 @@ variants:
filesize = 4000
scp_timeout = 1000
+ - nicdriver_unload: install setup unattended_install.cdrom
+ type = nicdriver_unload
+ nic_mode = tap
+ file_size = 100
+ connect_time = 4
+ scp_timeout = 300
+ thread_num = 10
+
- physical_resources_check: install setup unattended_install.cdrom
type = physical_resources_check
catch_uuid_cmd = dmidecode | awk -F: '/UUID/ {print $2}'
@@ -1038,7 +1046,7 @@ variants:
# Windows section
- @Windows:
- no autotest linux_s3 vlan_tag ioquit unattended_install.(url|nfs|remote_ks) jumbo file_transfer
+ no autotest linux_s3 vlan_tag ioquit unattended_install.(url|nfs|remote_ks) jumbo file_transfer nicdriver_unload
shutdown_command = shutdown /s /f /t 0
reboot_command = shutdown /r /f /t 0
status_test_command = echo %errorlevel%