new file mode 100644
@@ -0,0 +1,205 @@
+import logging, commands, re
+from autotest_lib.client.common_lib import error
+from autotest_lib.client.bin import utils
+import kvm_test_utils, kvm_utils
+
+def run_ethtool(test, params, env):
+ """
+ Test offload functions of ethernet device by ethtool
+
+ 1) Log into a guest
+ 2) Initialize the callback of sub functions
+ 3) Enable/disable sub function of NIC
+ 4) Execute callback function
+ 5) Check the return value
+ 6) Restore original configuration
+
+ @param test: Kvm test object
+ @param params: Dictionary with the test parameters.
+ @param env: Dictionary with test environment.
+ """
+ def ethtool_get(type):
+ feature_pattern = {
+ 'tx': 'tx.*checksumming',
+ 'rx': 'rx.*checksumming',
+ 'sg': 'scatter.*gather',
+ 'tso': 'tcp.*segmentation.*offload',
+ 'gso': 'generic.*segmentation.*offload',
+ 'gro': 'generic.*receive.*offload',
+ 'lro': 'large.*receive.*offload',
+ }
+ s, o = session.get_command_status_output("ethtool -k %s" % ethname)
+ try:
+ return re.findall("%s: (.*)" % feature_pattern.get(type), o)[0]
+ except IndexError:
+ logging.debug("Could not get %s status" % type)
+
+ def ethtool_set(type, status):
+ """
+ Set ethernet device offload status
+
+ @param type: Offload type name
+ @param status: New status will be changed to
+ """
+ logging.info("Try to set %s %s" % (type, status))
+ if status not in ["off", "on"]:
+ return False
+ cmd = "ethtool -K %s %s %s" % (ethname, type, status)
+ if ethtool_get(type) != status:
+ return session.get_command_status(cmd) == 0
+ if ethtool_get(type) != status:
+ logging.error("Fail to set %s %s" % (type, status))
+ return False
+ return True
+
+ def ethtool_save_params():
+ logging.info("Save ethtool configuration")
+ for i in supported_features:
+ feature_status[i] = ethtool_get(i)
+
+ def ethtool_restore_params():
+ logging.info("Restore ethtool configuration")
+ for i in supported_features:
+ ethtool_set(i, feature_status[i])
+
+ def compare_md5sum(name):
+ logging.info("Compare md5sum of the files on guest and host")
+ host_result = utils.hash_file(name, method="md5")
+ try:
+ o = session.get_command_output("md5sum %s" % name)
+ guest_result = re.findall("\w+", o)[0]
+ except IndexError:
+ logging.error("Could not get file md5sum in guest")
+ return False
+ logging.debug("md5sum: guest(%s), host(%s)" % (guest_result,
+ host_result))
+ return guest_result == host_result
+
+ def transfer_file(src="guest"):
+ """
+ Transfer file by scp, use tcpdump to capture packets, then check the
+ return string.
+
+ @param src: Source host of transfer file
+ @return: Tuple (status, error msg/tcpdump result)
+ """
+ session2.get_command_status("rm -rf %s" % filename)
+ dd_cmd = "dd if=/dev/urandom of=%s bs=1M count=%s" % (filename,
+ params.get("filesize"))
+ logging.info("Creat file in source host, cmd: %s" % dd_cmd)
+ tcpdump_cmd = "tcpdump -lep -s 0 tcp -vv port ssh"
+ if src == "guest":
+ s = session.get_command_status(dd_cmd, timeout=360)
+ tcpdump_cmd += " and src %s" % guest_ip
+ copy_files_fun = vm.copy_files_from
+ else:
+ s, o = commands.getstatusoutput(dd_cmd)
+ tcpdump_cmd += " and dst %s" % guest_ip
+ copy_files_fun = vm.copy_files_to
+ if s != 0:
+ return (False, "Fail to create file by dd, cmd: %s" % dd_cmd)
+
+ # only capture the new tcp port after offload setup
+ original_tcp_ports = re.findall("tcp.*:(\d+).*%s" % guest_ip,
+ utils.system_output("/bin/netstat -nap"))
+ for i in original_tcp_ports:
+ tcpdump_cmd += " and not port %s" % i
+ logging.debug("Listen by command: %s" % tcpdump_cmd)
+ session2.sendline(tcpdump_cmd)
+ if not kvm_utils.wait_for(lambda: session.get_command_status(
+ "pgrep tcpdump") == 0, 30):
+ return (False, "Tcpdump process wasn't launched")
+
+ logging.info("Start to transfer file")
+ if not copy_files_fun(filename, filename):
+ return (False, "Child process transfer file failed")
+ logging.info("Transfer file completed")
+ if session.get_command_status("killall tcpdump") != 0:
+ return (False, "Could not kill all tcpdump process")
+ s, tcpdump_string = session2.read_up_to_prompt(timeout=60)
+ if not s:
+ return (False, "Fail to read tcpdump's output")
+
+ if not compare_md5sum(filename):
+ return (False, "Files' md5sum mismatched")
+ return (True, tcpdump_string)
+
+ def tx_callback(status="on"):
+ s, o = transfer_file(src="guest")
+ if not s:
+ logging.error(o)
+ return False
+ return True
+
+ def rx_callback(status="on"):
+ s, o = transfer_file(src="host")
+ if not s:
+ logging.error(o)
+ return False
+ return True
+
+ def so_callback(status="on"):
+ s, o = transfer_file(src="guest")
+ if not s:
+ logging.error(o)
+ return False
+ logging.info("Check if contained large frame")
+ # mtu: default IPv4 MTU is 1500 Bytes, ethernet header is 14 Bytes
+ return (status == "on") ^ (len([i for i in re.findall(
+ "length (\d*):", o) if int(i) > mtu]) == 0)
+
+ def ro_callback(status="on"):
+ s, o = transfer_file(src="host")
+ if not s:
+ logging.error(o)
+ return False
+ return True
+
+ vm = kvm_test_utils.get_living_vm(env, params.get("main_vm"))
+ session = kvm_test_utils.wait_for_login(vm,
+ timeout=int(params.get("login_timeout", 360)))
+ session2 = kvm_test_utils.wait_for_login(vm,
+ timeout=int(params.get("login_timeout", 360)))
+ mtu = 1514
+ feature_status = {}
+ filename = "/tmp/ethtool.dd"
+ guest_ip = vm.get_address()
+ ethname = kvm_test_utils.get_linux_ifname(session, vm.get_macaddr(0))
+ supported_features = params.get("supported_features").split()
+ test_matrix = {
+ # type:(callback, (dependence), (exclude)
+ "tx": (tx_callback, (), ()),
+ "rx": (rx_callback, (), ()),
+ "sg": (tx_callback, ("tx",), ()),
+ "tso": (so_callback, ("tx", "sg",), ("gso",)),
+ "gso": (so_callback, (), ("tso",)),
+ "gro": (ro_callback, ("rx",), ("lro",)),
+ "lro": (rx_callback, (), ("gro",)),
+ }
+ ethtool_save_params()
+ success = True
+ try:
+ for type in supported_features:
+ callback = test_matrix[type][0]
+ for i in test_matrix[type][2]:
+ if not ethtool_set(i, "off"):
+ logging.error("Fail to disable %s" % i)
+ success = False
+ for i in [f for f in test_matrix[type][1]] + [type]:
+ if not ethtool_set(i, "on"):
+ logging.error("Fail to enable %s" % i)
+ success = False
+ if not callback():
+ raise error.TestFail("Test failed, %s: on" % type)
+
+ if not ethtool_set(type, "off"):
+ logging.error("Fail to disable %s" % type)
+ success = False
+ if not callback(status="off"):
+ raise error.TestFail("Test failed, %s: off" % type)
+ if not success:
+ raise error.TestError("Enable/disable offload function fail")
+ finally:
+ ethtool_restore_params()
+ session.close()
+ session2.close()
@@ -415,6 +415,11 @@ variants:
netperf_cmd = %s/netperf-2.4.5/src/netperf -t %s -H %s -l 60 -- -m 1
protocols = "TCP_STREAM TCP_MAERTS TCP_RR TCP_CRR UDP_RR TCP_SENDFILE UDP_STREAM"
+ - ethtool: install setup unattended_install.cdrom
+ type = ethtool
+ filesize = 512
+ nic_mode = tap
+
- physical_resources_check: install setup unattended_install.cdrom
type = physical_resources_check
catch_uuid_cmd = dmidecode | awk -F: '/UUID/ {print $2}'
@@ -556,10 +561,15 @@ variants:
nic_model = e1000
jumbo:
mtu = 16110
+ ethtool:
+ # gso gro lro is only supported by latest kernel
+ supported_features = "tx rx sg tso gso gro lro"
- virtio:
nic_model = virtio
jumbo:
mtu = 65520
+ ethtool:
+ supported_features = "tx sg tso gso"
# Guests
@@ -1113,7 +1123,7 @@ variants:
# Windows section
- @Windows:
- no autotest linux_s3 vlan ioquit unattended_install.(url|nfs|remote_ks) jumbo file_transfer nicdriver_unload nic_promisc multicast mac_change
+ no autotest linux_s3 vlan ioquit unattended_install.(url|nfs|remote_ks) jumbo file_transfer nicdriver_unload nic_promisc multicast mac_change ethtool
shutdown_command = shutdown /s /f /t 0
reboot_command = shutdown /r /f /t 0
status_test_command = echo %errorlevel%