From patchwork Thu Oct 7 01:33:47 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Meneghel Rodrigues X-Patchwork-Id: 237491 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o971VGMN017580 for ; Thu, 7 Oct 2010 01:31:16 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759115Ab0JGBbI (ORCPT ); Wed, 6 Oct 2010 21:31:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:5379 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756371Ab0JGBbH (ORCPT ); Wed, 6 Oct 2010 21:31:07 -0400 Received: from int-mx03.intmail.prod.int.phx2.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o971V5ke019001 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 6 Oct 2010 21:31:05 -0400 Received: from virtlab105.virt.bos.redhat.com (virtlab105.virt.bos.redhat.com [10.16.72.124]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o971V4eh026768; Wed, 6 Oct 2010 21:31:04 -0400 From: Lucas Meneghel Rodrigues To: autotest@test.kernel.org Cc: kvm@vger.kernel.org, mst@redhat.com, psuriset@linux.vnet.ibm.com, akong@redhat.com, jasowang@redhat.com, mgoldish@redhat.com, Lucas Meneghel Rodrigues Subject: [PATCH 09/19] KVM test: Add a subtest of load/unload nic driver Date: Wed, 6 Oct 2010 21:33:47 -0400 Message-Id: <1286415227-3415-1-git-send-email-lmr@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.16 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Thu, 07 Oct 2010 01:31:26 +0000 (UTC) diff --git a/client/tests/kvm/tests/nicdriver_unload.py b/client/tests/kvm/tests/nicdriver_unload.py new file mode 100644 index 0000000..47318ba --- /dev/null +++ b/client/tests/kvm/tests/nicdriver_unload.py @@ -0,0 +1,115 @@ +import logging, threading, os +from autotest_lib.client.common_lib import error +from autotest_lib.client.bin import utils +import kvm_utils, kvm_test_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 whether 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_test_utils.get_linux_ifname(session, vm.get_mac_address(0)) + sys_path = "/sys/class/net/%s/device/driver" % (ethname) + s, o = session.get_command_status_output('readlink -e %s' % sys_path) + if s: + raise error.TestError("Could not find driver name") + driver = os.path.basename(o.strip()) + 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) + if ret: + logging.debug("File %s was transfered successfuly", remote_file) + else: + logging.debug("Failed to transfer file %s", remote_file) + + def compare(origin_file, receive_file): + cmd = "md5sum %s" + check_sum1 = utils.hash_file(origin_file, method="md5") + 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("original file md5: %s, received file md5: %s", + check_sum1, check_sum2) + if check_sum1 != check_sum2: + logging.error("MD5 hash of origin and received files 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" + utils.system(cmd % (file_name, file_size)) + + file_list = [] + connect_time = params.get("connect_time") + scp_timeout = int(params.get("scp_timeout")) + thread_num = int(params.get("thread_num")) + unload_load_cmd = ("sleep %s && ifconfig %s down && modprobe -r %s && " + "sleep 1 && modprobe %s && sleep 4 && ifconfig %s up" % + (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 MD5 hash 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() diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample index 5003008..8667771 100644 --- a/client/tests/kvm/tests_base.cfg.sample +++ b/client/tests/kvm/tests_base.cfg.sample @@ -484,6 +484,14 @@ variants: - remote: transfer_type = remote + - 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}' @@ -1261,7 +1269,7 @@ 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%