def _log_lines(self, log_str):
"""
Record monitor cmd/output in log file.
"""
try:
for l in log_str.splitlines():
utils_misc.log_line(self.log_file, l)
except Exception:
pass
def _log_lines(self, log_str):
"""
Record monitor cmd/output in log file.
"""
try:
for l in log_str.splitlines():
utils_misc.log_line(self.log_file, l)
except Exception:
pass
def _tcpdump_handler(env, filename, line):
"""
Helper for handler tcpdump output.
:params address_cache: address cache path.
:params filename: Log file name for tcpdump message.
:params line: Tcpdump output message.
"""
try:
utils_misc.log_line(filename, line)
except Exception, reason:
logging.warn("Can't log tcpdump output, '%s'", reason)
def _tcpdump_handler(env, filename, line):
"""
Helper for handler tcpdump output.
:params address_cache: address cache path.
:params filename: Log file name for tcpdump message.
:params line: Tcpdump output message.
"""
try:
utils_misc.log_line(filename, line)
except Exception, reason:
logging.warn("Can't log tcpdump output, '%s'", reason)
def _output_logger_handler(self, line):
try:
log_line(self._logfile, line)
except Exception as e:
logging.warn("Can't log ip sniffer output: '%s'", e)
if self._output_handler(line):
return
# We can check whether the process is terminated unexpectedly
# here since the terminated status is a line of the output
match = self._re_sniffer_finished.match(line)
if match:
if match.group(1) != "0":
logging.error(
"IP sniffer (%s) terminated unexpectedly! "
"please check the log to get the details "
"(status: %s)", self.command, match.group(1))
def sr_iov_setup(self):
"""
Ensure the PCI device is working in sr_iov mode.
Check if the PCI hardware device drive is loaded with the appropriate,
parameters (number of VFs), and if it's not, perform setup.
:return: True, if the setup was completed successfully, False otherwise.
:rtype: bool
"""
# Check if the host support interrupt remapping
error.context("Set up host env for PCI assign test", logging.info)
kvm_re_probe = True
o = utils.system_output("dmesg")
ecap = re.findall("ecap\s+(.\w+)", o)
if not ecap:
logging.error("Fail to check host interrupt remapping support.")
else:
if int(ecap[0], 16) & 8 == 8:
# host support interrupt remapping.
# No need enable allow_unsafe_assigned_interrupts.
kvm_re_probe = False
if self.kvm_params is not None:
if self.auai_path and self.kvm_params[self.auai_path] == "Y":
kvm_re_probe = False
# Try to re probe kvm module with interrupt remapping support
if kvm_re_probe:
cmd = "echo Y > %s" % self.auai_path
error.context("enable PCI passthrough with '%s'" % cmd,
logging.info)
try:
utils.system(cmd)
except Exception:
logging.debug("Can not enable the interrupt remapping support")
lnk = "/sys/module/vfio_iommu_type1/parameters/allow_unsafe_interrupts"
if self.device_driver == "vfio-pci":
status = utils.system('lsmod | grep vfio', ignore_status=True)
if status:
logging.info("Load vfio-pci module.")
cmd = "modprobe vfio-pci"
utils.run(cmd)
time.sleep(3)
if not ecap or (int(ecap[0], 16) & 8 != 8):
cmd = "echo Y > %s" % lnk
error.context("enable PCI passthrough with '%s'" % cmd,
logging.info)
utils.run(cmd)
re_probe = False
status = utils.system("lsmod | grep %s" % self.driver,
ignore_status=True)
if status:
re_probe = True
elif not self.check_vfs_count():
utils.system_output("modprobe -r %s" % self.driver, timeout=60)
re_probe = True
else:
self.setup = None
return True
# Re-probe driver with proper number of VFs
if re_probe:
cmd = "modprobe %s %s" % (self.driver, self.driver_option)
error.context("Loading the driver '%s' with command '%s'" %
(self.driver, cmd), logging.info)
status = utils.system(cmd, ignore_status=True)
dmesg = utils.system_output("dmesg", timeout=60, ignore_status=True)
file_name = "host_dmesg_after_load_%s.txt" % self.driver
logging.info("Log dmesg after loading '%s' to '%s'.", self.driver,
file_name)
utils_misc.log_line(file_name, dmesg)
utils.system("/etc/init.d/network restart", ignore_status=True)
if status:
return False
self.setup = None
return True
def sr_iov_setup(self):
"""
Ensure the PCI device is working in sr_iov mode.
Check if the PCI hardware device drive is loaded with the appropriate,
parameters (number of VFs), and if it's not, perform setup.
:return: True, if the setup was completed successfully, False otherwise.
:rtype: bool
"""
# Check if the host support interrupt remapping
error.context("Set up host env for PCI assign test", logging.info)
kvm_re_probe = True
o = utils.system_output("dmesg")
ecap = re.findall("ecap\s+(.\w+)", o)
if not ecap:
logging.error("Fail to check host interrupt remapping support.")
else:
if int(ecap[0], 16) & 8 == 8:
# host support interrupt remapping.
# No need enable allow_unsafe_assigned_interrupts.
kvm_re_probe = False
if self.kvm_params is not None:
if self.auai_path and self.kvm_params[self.auai_path] == "Y":
kvm_re_probe = False
# Try to re probe kvm module with interrupt remapping support
if kvm_re_probe:
cmd = "echo Y > %s" % self.auai_path
error.context("enable PCI passthrough with '%s'" % cmd,
logging.info)
try:
utils.system(cmd)
except Exception:
logging.debug("Can not enable the interrupt remapping support")
lnk = "/sys/module/vfio_iommu_type1/parameters/allow_unsafe_interrupts"
if self.device_driver == "vfio-pci":
status = utils.system('lsmod | grep vfio', ignore_status=True)
if status:
logging.info("Load vfio-pci module.")
cmd = "modprobe vfio-pci"
utils.run(cmd)
time.sleep(3)
if not ecap or (int(ecap[0], 16) & 8 != 8):
cmd = "echo Y > %s" % lnk
error.context("enable PCI passthrough with '%s'" % cmd,
logging.info)
utils.run(cmd)
re_probe = False
status = utils.system("lsmod | grep %s" % self.driver,
ignore_status=True)
if status:
re_probe = True
elif not self.check_vfs_count():
os.system("modprobe -r %s" % self.driver)
re_probe = True
else:
self.setup = None
return True
# Re-probe driver with proper number of VFs
if re_probe:
cmd = "modprobe %s %s" % (self.driver, self.driver_option)
error.context("Loading the driver '%s' with command '%s'" %
(self.driver, cmd), logging.info)
status = utils.system(cmd, ignore_status=True)
dmesg = utils.system_output("dmesg", ignore_status=True)
file_name = "host_dmesg_after_load_%s.txt" % self.driver
logging.info("Log dmesg after loading '%s' to '%s'.", self.driver,
file_name)
utils_misc.log_line(file_name, dmesg)
utils.system("/etc/init.d/network restart", ignore_status=True)
if status:
return False
self.setup = None
return True
