From patchwork Tue Jul 20 01:35:32 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amos Kong X-Patchwork-Id: 112926 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o6K1ZWVS029612 for ; Tue, 20 Jul 2010 01:36:00 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932084Ab0GTBfj (ORCPT ); Mon, 19 Jul 2010 21:35:39 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56728 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761085Ab0GTBfi (ORCPT ); Mon, 19 Jul 2010 21:35:38 -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 o6K1Zage019092 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 19 Jul 2010 21:35:36 -0400 Received: from [127.0.1.1] (dhcp-91-133.nay.redhat.com [10.66.91.133]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o6K1ZXAW020246; Mon, 19 Jul 2010 21:35:34 -0400 Subject: [RFC PATCH 05/14] KVM-test: Add a subtest jumbo To: lmr@redhat.com From: Amos Kong Cc: autotest@test.kernel.org, qemu-devel@nongnu.org, kvm@vger.kernel.org Date: Tue, 20 Jul 2010 09:35:32 +0800 Message-ID: <20100720013532.2212.70315.stgit@z> In-Reply-To: <20100720013414.2212.13476.stgit@z> References: <20100720013414.2212.13476.stgit@z> User-Agent: StGit/0.15 MIME-Version: 1.0 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 (demeter.kernel.org [140.211.167.41]); Tue, 20 Jul 2010 01:36:00 +0000 (UTC) diff --git a/client/tests/kvm/tests/jumbo.py b/client/tests/kvm/tests/jumbo.py new file mode 100644 index 0000000..9f56a87 --- /dev/null +++ b/client/tests/kvm/tests/jumbo.py @@ -0,0 +1,133 @@ +import os, re, logging, commands, time, random +from autotest_lib.client.common_lib import error +import kvm_subprocess, kvm_test_utils, kvm_utils, kvm_net_utils + +def run_jumbo(test, params, env): + """ + Test the RX jumbo frame function of vnics: + 1) boot the vm + 2) change the MTU of guest nics and host taps depends on the nic model + 3) add the static arp entry for guest nic + 4) wait for the MTU ok + 5) verify the patch mtu using ping + 6) ping the guest with large frames + 7) increament size ping + 8) flood ping the guest with large frames + 9) verify the path mtu + 10) revocer the mtu + + @param test: kvm test object + @param params: Dictionary with the test parameters + @param env: Dictionary with test environment. + """ + + vm = kvm_test_utils.get_living_vm(env, params.get("main_vm")) + session = kvm_test_utils.wait_for_login(vm) + mtu = params.get("mtu", "1500") + flood_time = params.get("flood_time", "300") + max_icmp_pkt_size = int(mtu) - 28 + + ifname = vm.get_ifname(0) + ip = vm.get_address(0) + if ip is None: + raise error.TestError("Could not get the ip address") + + try: + # Environment preparartion + ethname = kvm_net_utils.get_linux_ifname(session, vm.get_macaddr(0)) + + logging.info("Changing the mtu of guest ...") + guest_mtu_cmd = "ifconfig %s mtu %s" % (ethname , mtu) + s, o = session.get_command_status_output(guest_mtu_cmd) + if s != 0: + logging.error(o) + raise error.TestError("Fail to set the mtu of guest nic: %s" + % ethname) + + logging.info("Chaning the mtu of host tap ...") + host_mtu_cmd = "ifconfig %s mtu %s" % (ifname, mtu) + s, o = commands.getstatusoutput(host_mtu_cmd) + if s != 0: + raise error.TestError("Fail to set the mtu of %s" % ifname) + + logging.info("Add a temporary static arp entry ...") + arp_add_cmd = "arp -s %s %s -i %s" % (ip, vm.get_macaddr(0), ifname) + s, o = commands.getstatusoutput(arp_add_cmd) + if s != 0 : + raise error.TestError("Fail to add temporary arp entry") + + def is_mtu_ok(): + s, o = kvm_net_utils.ping(ip, 1, interface = ifname, + packetsize = max_icmp_pkt_size, + hint = "do", timeout = 2) + if s != 0: + return False + else: + return True + + def verify_mtu(): + logging.info("Verify the path mtu") + s, o = kvm_net_utils.ping(ip, 10, interface = ifname, + packetsize = max_icmp_pkt_size, + hint = "do", timeout = 15) + if s != 0 : + logging.error(o) + raise error.TestFail("Path MTU is not as expected") + if kvm_net_utils.get_loss_ratio(o) != 0: + logging.error(o) + raise error.TestFail("Packet loss ratio during mtu verification" + " is not zero") + + def flood_ping(): + logging.info("Flood with large frames") + kvm_net_utils.ping(ip, interface = ifname, + packetsize = max_icmp_pkt_size, + flood = True, timeout = float(flood_time)) + + def large_frame_ping(count = 100): + logging.info("Large frame ping") + s, o = kvm_net_utils.ping(ip, count, interface = ifname, + packetsize = max_icmp_pkt_size, + timeout = float(count) * 2) + ratio = kvm_net_utils.get_loss_ratio(o) + if ratio != 0: + raise error.TestFail("Loss ratio of large frame ping is %s" \ + % ratio) + + def size_increase_ping(step = random.randrange(90, 110)): + logging.info("Size increase ping") + for size in range(0, max_icmp_pkt_size + 1, step): + logging.info("Ping %s with size %s" % (ip, size)) + s, o = kvm_net_utils.ping(ip, 1, interface = ifname, + packetsize = size, + hint = "do", timeout = 1) + if s != 0: + s, o = kvm_net_utils.ping(ip, 10, interface = ifname, + packetsize = size, + adaptive = True, hint = "do", + timeout = 20) + if kvm_net_utils.get_loss_ratio(o) > 50: + raise error.TestFail("ping loss ratio is greater " + "than 50% for size %s" % size) + + logging.info("Waiting for the MTU to be OK") + # Wait for the MTU is OK + if not kvm_utils.wait_for(is_mtu_ok, 10, 0, 1): + logging.debug(commands.getoutput("ifconfig -a")) + raise error.TestError("10 seconds elapsed while the mtu is not" + " as expected") + + # Functional Test + verify_mtu() + large_frame_ping() + size_increase_ping() + + # Stress test + flood_ping() + verify_mtu() + + finally: + # Environment clean + session.close() + logging.info("Removing the temporary arp entry") + commands.getstatusoutput("arp -d %s -i %s" % (ip, ifname)) diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample index 4f58dc0..7f7b56a 100644 --- a/client/tests/kvm/tests_base.cfg.sample +++ b/client/tests/kvm/tests_base.cfg.sample @@ -354,6 +354,9 @@ variants: counts = 100 flood_minutes = 10 + - jumbo: install setup unattended_install.cdrom + type = jumbo + - physical_resources_check: install setup unattended_install.cdrom type = physical_resources_check catch_uuid_cmd = dmidecode | awk -F: '/UUID/ {print $2}' @@ -489,10 +492,16 @@ variants: variants: - @rtl8139: nic_model = rtl8139 + jumbo: + mtu = 1500 - e1000: nic_model = e1000 + jumbo: + mtu = 16110 - virtio: nic_model = virtio + jumbo: + mtu = 65520 # Guests @@ -1024,7 +1033,7 @@ variants: # Windows section - @Windows: - no autotest linux_s3 vlan_tag ioquit unattended_install.(url|nfs|remote_ks) + no autotest linux_s3 vlan_tag ioquit unattended_install.(url|nfs|remote_ks) jumbo shutdown_command = shutdown /s /f /t 0 reboot_command = shutdown /r /f /t 0 status_test_command = echo %errorlevel%