def run(test, params, env):
"""
Test command: virsh pool-define; pool-define-as; pool-start;
vol-list pool; attach-device LUN to guest; mount the device;
dd to the mounted device; unmount; pool-destroy; pool-undefine;
Pre-requiste:
Host needs to have a wwpn and wwnn of a vHBA which is zoned and mapped to
SAN controller.
"""
pool_xml_f = params.get("pool_create_xml_file", "/PATH/TO/POOL.XML")
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pre_def_pool = params.get("pre_def_pool", "no")
define_pool = params.get("define_pool", "no")
define_pool_as = params.get("define_pool_as", "no")
pool_create_as = params.get("pool_create_as", "no")
need_pool_build = params.get("need_pool_build", "no")
need_vol_create = params.get("need_vol_create", "no")
pool_type = params.get("pool_type", "dir")
source_format = params.get("pool_src_format", "")
source_name = params.get("pool_source_name", "")
source_path = params.get("pool_source_path", "/")
pool_target = params.get("pool_target", "pool_target")
pool_adapter_type = params.get("pool_adapter_type", "")
pool_adapter_parent = params.get("pool_adapter_parent", "")
target_device = params.get("disk_target_dev", "sdc")
pool_wwnn = params.get("pool_wwnn", "POOL_WWNN_EXAMPLE")
pool_wwpn = params.get("pool_wwpn", "POOL_WWPN_EXAMPLE")
vhba_wwnn = params.get("vhba_wwnn", "VHBA_WWNN_EXAMPLE")
vhba_wwpn = params.get("vhba_wwpn", "VHBA_WWPN_EXAMPLE")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
vol_format = params.get("volume_format", 'raw')
attach_method = params.get("attach_method", "hot")
test_unit = None
mount_disk = None
pool_kwargs = {}
pool_extra_args = ""
emulated_image = "emulated-image"
disk_xml = ""
new_vhbas = []
source_dev = ""
mpath_vol_path = ""
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
if pool_type == "scsi":
if ('EXAMPLE' in pool_wwnn) or ('EXAMPLE' in pool_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for npiv scsi pool.")
if pool_type == "logical":
if ('EXAMPLE' in vhba_wwnn) or ('EXAMPLE' in vhba_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for vhba.")
online_hbas_list = utils_npiv.find_hbas("hba")
logging.debug("The online hbas are: %s", online_hbas_list)
old_mpath_conf = utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
replace_existing=True)
if not online_hbas_list:
raise exceptions.TestSkipError(
"Host doesn't have online hba cards")
old_vhbas = utils_npiv.find_hbas("vhba")
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if not vm.is_alive():
vm.start()
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
if pool_type == "scsi":
if define_pool == "yes":
if pool_adapter_parent == "":
pool_adapter_parent = online_hbas_list[0]
pool_kwargs = {'source_path': source_path,
'source_name': source_name,
'source_format': source_format,
'pool_adapter_type': pool_adapter_type,
'pool_adapter_parent': pool_adapter_parent,
'pool_wwnn': pool_wwnn,
'pool_wwpn': pool_wwpn}
elif pool_type == "logical":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": online_hbas_list[0],
"scsi_wwnn": vhba_wwnn,
"scsi_wwpn": vhba_wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas), timeout=_DELAY_TIME*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME*5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s", new_mpath_devs)
source_dev = "/dev/mapper/" + new_mpath_devs[0]
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool", source_dev)
try:
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
except Exception as e:
raise exceptions.TestError("Error occurred when parted mklable")
if define_pool_as == "yes":
pool_extra_args = ""
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
elif pool_type == "mpath":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": online_hbas_list[0],
"scsi_wwnn": vhba_wwnn,
"scsi_wwpn": vhba_wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas), timeout=_DELAY_TIME*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME*2)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s", new_mpath_devs)
mpath_vol_path = "/dev/mapper/" + new_mpath_devs[0]
try:
cmd = "parted %s mklabel msdos -s" % mpath_vol_path
cmd_result = process.run(cmd, shell=True)
except Exception as e:
raise exceptions.TestError("Error occurred when parted mklable")
if pre_def_pool == "yes":
try:
pvt = utlv.PoolVolumeTest(test, params)
pvt.pre_pool(pool_name, pool_type,
pool_target, emulated_image,
**pool_kwargs)
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas),
_DELAY_TIME*2)
virsh.pool_dumpxml(pool_name, to_file=pool_xml_f)
virsh.pool_destroy(pool_name)
except Exception as e:
pvt.cleanup_pool(pool_name, pool_type, pool_target,
emulated_image, **pool_kwargs)
raise exceptions.TestError(
"Error occurred when prepare pool xml:\n %s" % e)
if os.path.exists(pool_xml_f):
with open(pool_xml_f, 'r') as f:
logging.debug("Create pool from file: %s", f.read())
try:
# define/create/start the pool
if (pre_def_pool == "yes") and (define_pool == "yes"):
pool_define_status = virsh.pool_define(pool_xml_f,
ignore_status=True,
debug=True)
utlv.check_exit_status(pool_define_status)
if define_pool_as == "yes":
pool_define_as_status = virsh.pool_define_as(
pool_name, pool_type,
pool_target, pool_extra_args,
ignore_status=True, debug=True
)
utlv.check_exit_status(pool_define_as_status)
if pool_create_as == "yes":
if pool_type != "scsi":
raise exceptions.TestSkipError("pool-create-as only needs to "
"be covered by scsi pool for "
"NPIV test.")
cmd = "virsh pool-create-as %s %s \
--adapter-wwnn %s --adapter-wwpn %s \
--adapter-parent %s --target %s"\
% (pool_name, pool_type, pool_wwnn, pool_wwpn,
online_hbas_list[0], pool_target)
cmd_status = process.system(cmd, verbose=True)
if cmd_status:
raise exceptions.TestFail("pool-create-as scsi pool failed.")
if need_pool_build == "yes":
pool_build_status = virsh.pool_build(pool_name, "--overwrite")
utlv.check_exit_status(pool_build_status)
pool_ins = libvirt_storage.StoragePool()
if not pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("define or create pool failed.")
else:
if not pool_ins.is_pool_active(pool_name):
pool_start_status = virsh.pool_start(pool_name)
utlv.check_exit_status(pool_start_status)
utlv.check_actived_pool(pool_name)
pool_detail = libvirt_xml.PoolXML.get_pool_details(pool_name)
logging.debug("Pool detail: %s", pool_detail)
# create vol if required
if need_vol_create == "yes":
vol_create_as_status = virsh.vol_create_as(
volume_name, pool_name,
volume_capacity, allocation,
vol_format, "", debug=True
)
utlv.check_exit_status(vol_create_as_status)
virsh.pool_refresh(pool_name)
vol_list = utlv.get_vol_list(pool_name, vol_check=True,
timeout=_DELAY_TIME*3)
logging.debug('Volume list is: %s' % vol_list)
# use test_unit to save the first vol in pool
if pool_type == "mpath":
cmd = "virsh vol-list %s | grep \"%s\" |\
awk '{FS=\" \"} {print $1}'" % (pool_name, mpath_vol_path)
cmd_result = process.run(cmd, shell=True)
status = cmd_result.exit_status
output = cmd_result.stdout_text.strip()
if cmd_result.exit_status:
raise exceptions.TestFail("vol-list pool %s failed", pool_name)
if not output:
raise exceptions.TestFail("Newly added mpath dev not in pool.")
test_unit = output
logging.info(
"Using %s to attach to a guest", test_unit)
else:
test_unit = list(vol_list.keys())[0]
logging.info(
"Using the first volume %s to attach to a guest", test_unit)
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
session = vm.wait_for_login()
output = session.cmd_status_output('lsblk')
logging.debug("%s", output[1])
old_count = vmxml.get_disk_count(vm_name)
bf_disks = libvirt_vm.get_disks()
# prepare disk xml which will be hot/cold attached to vm
disk_params = {'type_name': 'volume', 'target_dev': target_device,
'target_bus': 'virtio', 'source_pool': pool_name,
'source_volume': test_unit, 'driver_type': vol_format}
disk_xml = os.path.join(data_dir.get_tmp_dir(), 'disk_xml.xml')
lun_disk_xml = utlv.create_disk_xml(disk_params)
copyfile(lun_disk_xml, disk_xml)
disk_xml_str = open(lun_disk_xml).read()
logging.debug("The disk xml is: %s", disk_xml_str)
# hot attach disk xml to vm
if attach_method == "hot":
copyfile(lun_disk_xml, disk_xml)
dev_attach_status = virsh.attach_device(vm_name, disk_xml,
debug=True)
# Pool/vol virtual disk is not supported by mpath pool yet.
if dev_attach_status.exit_status and pool_type == "mpath":
raise exceptions.TestSkipError("mpath pool vol is not "
"supported in virtual disk yet,"
"the error message is: %s",
dev_attach_status.stderr)
session.close()
utlv.check_exit_status(dev_attach_status)
# cold attach disk xml to vm
elif attach_method == "cold":
if vm.is_alive():
vm.destroy(gracefully=False)
new_disk = disk.Disk()
new_disk.xml = disk_xml_str
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml.devices = vmxml.devices.append(new_disk)
vmxml.sync()
logging.debug(vmxml)
try:
vm.start()
except virt_vm.VMStartError as e:
logging.debug(e)
if pool_type == "mpath":
raise exceptions.TestSkipError("'mpath' pools for backing "
"'volume' disks isn't "
"supported for now")
else:
raise exceptions.TestFail("Failed to start vm")
session = vm.wait_for_login()
else:
pass
# checking attached disk in vm
logging.info("Checking disk availability in domain")
if not vmxml.get_disk_count(vm_name):
raise exceptions.TestFail("No disk in domain %s." % vm_name)
new_count = vmxml.get_disk_count(vm_name)
if new_count <= old_count:
raise exceptions.TestFail(
"Failed to attach disk %s" % lun_disk_xml)
logging.debug("Disks before attach: %s", bf_disks)
af_disks = libvirt_vm.get_disks()
logging.debug("Disks after attach: %s", af_disks)
mount_disk = "".join(list(set(bf_disks) ^ set(af_disks)))
if not mount_disk:
raise exceptions.TestFail("Can not get attached device in vm.")
logging.debug("Attached device in vm:%s", mount_disk)
logging.debug("Creating file system for %s", mount_disk)
output = session.cmd_status_output(
'echo yes | mkfs.ext4 %s' % mount_disk)
logging.debug("%s", output[1])
if mount_disk:
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Mount failed")
else:
raise exceptions.TestFail("Partition not available for disk")
logging.debug("Unmounting disk")
session.cmd_status_output('umount %s' % mount_disk)
output = session.cmd_status_output('mount')
logging.debug("%s", output[1])
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Mount failed")
logging.debug("Unmounting disk")
session.cmd_status_output('umount %s' % mount_disk)
session.close()
# detach disk from vm
dev_detach_status = virsh.detach_device(vm_name, disk_xml,
debug=True)
utlv.check_exit_status(dev_detach_status)
finally:
vm.destroy(gracefully=False)
vmxml_backup.sync()
logging.debug('Destroying pool %s', pool_name)
virsh.pool_destroy(pool_name)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if os.path.exists(pool_xml_f):
os.remove(pool_xml_f)
if os.path.exists(disk_xml):
data_dir.clean_tmp_files()
logging.debug("Cleanup disk xml")
if pre_def_pool == "yes":
# Do not apply cleanup_pool for logical pool, logical pool will
# be cleaned below
pvt.cleanup_pool(pool_name, pool_type, pool_target,
emulated_image, **pool_kwargs)
if (test_unit and
(need_vol_create == "yes" and (pre_def_pool == "no")) and
(pool_type == "logical")):
process.system('lvremove -f %s/%s' % (pool_name, test_unit),
verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
utils_npiv.vhbas_cleanup(new_vhbas)
# Restart multipathd, this is to avoid bz1399075
if source_dev:
utils_misc.wait_for(lambda: utils_npiv.restart_multipathd(source_dev),
_DELAY_TIME*5, 0.0, 5.0)
elif mpath_vol_path:
utils_misc.wait_for(lambda: utils_npiv.restart_multipathd(mpath_vol_path),
_DELAY_TIME*5, 0.0, 5.0)
else:
utils_npiv.restart_multipathd()
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
def run(test, params, env):
"""
Test command: virsh pool-define-as; pool-build; pool-start; vol-create-as;
vol-list; attach-device; login; mount and dd; reboot; check persistence;
detach-device; pool-destroy; pool-undefine; clear lv,vg and pv;
Create a libvirt npiv pool from a vHBA's device mapper device and create
a volume out of the newly created pool and attach it to a guest, mount it,
reboot and check persistence after reboot.
Pre-requisite :
Host should have a vHBA associated with a mpath device
"""
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pool_type = params.get("pool_type", "dir")
scsi_wwpn = params.get("scsi_wwpn", "WWPN_EXAMPLE")
scsi_wwnn = params.get("scsi_wwnn", "WWNN_EXAMPLE")
pool_target = params.get("pool_target", "pool_target")
target_device = params.get("disk_target_dev", "vda")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
frmt = params.get("volume_format", 'qcow2')
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mount_disk = None
test_unit = None
if 'EXAMPLE' in scsi_wwnn or 'EXAMPLE' in scsi_wwpn:
raise exceptions.TestSkipError("Please provide proper WWPN/WWNN")
if not vm.is_alive():
vm.start()
pool_extra_args = ""
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir, vm.address_cache)
process.run("service multipathd restart", shell=True)
online_hbas_list = nodedev.find_hbas("hba")
first_online_hba = online_hbas_list[0]
old_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the old mpath devs are: %s" % old_mpath_devs)
new_vhbas = nodedev.nodedev_create_from_xml({
"nodedev_parent": first_online_hba,
"scsi_wwnn": scsi_wwnn,
"scsi_wwpn": scsi_wwpn
})
logging.info("Newly created vHBA %s" % new_vhbas)
process.run("service multipathd restart", shell=True)
utils_misc.wait_for(lambda: nodedev.is_mpath_devs_added(old_mpath_devs),
timeout=5)
cur_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the current mpath devs are: %s" % cur_mpath_devs)
new_mpath_devs = list(set(cur_mpath_devs).difference(set(old_mpath_devs)))
logging.debug("newly added mpath devs are: %s" % new_mpath_devs)
if not new_mpath_devs:
raise exceptions.TestFail("No newly added mpath devices found, \
please check your FC settings")
source_dev = os.path.join('/dev/mapper/', new_mpath_devs[0])
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool" % source_dev)
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
utlv.check_exit_status(cmd_result)
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
else:
raise exceptions.TestFail(
"The vHBA %s does not have any associated mpath device" %
new_vhbas)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
# if no online hba cards on host, mark case failed
if not online_hbas_list:
raise exceptions.TestSkipError("Host doesn't have online hba cards")
try:
cmd_result = virsh.pool_define_as(pool_name,
pool_type,
pool_target,
pool_extra_args,
ignore_status=True,
debug=True)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_build(pool_name)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_start(pool_name)
utlv.check_exit_status(cmd_result)
utlv.check_actived_pool(pool_name)
pool_detail = libvirt_xml.PoolXML.get_pool_details(pool_name)
logging.debug("Pool detail: %s", pool_detail)
cmd_result = virsh.vol_create_as(volume_name,
pool_name,
volume_capacity,
allocation,
frmt,
"",
debug=True)
utlv.check_exit_status(cmd_result)
vol_list = utlv.get_vol_list(pool_name, timeout=10)
logging.debug('Volume list %s', vol_list)
for unit in vol_list:
test_unit = vol_list[unit]
logging.debug(unit)
disk_params = {
'type_name': "file",
'target_dev': target_device,
'target_bus': "virtio",
'source_file': test_unit,
'driver_name': "qemu",
'driver_type': "raw"
}
disk_xml = utlv.create_disk_xml(disk_params)
session = vm.wait_for_login()
bf_disks = libvirt_vm.get_disks()
attach_success = virsh.attach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(attach_success)
logging.debug("Disks before attach: %s", bf_disks)
af_disks = libvirt_vm.get_disks()
logging.debug("Disks after attach: %s", af_disks)
mount_disk = "".join(list(set(bf_disks) ^ set(af_disks)))
if not mount_disk:
raise exceptions.TestFail("Can not get attached device in vm.")
logging.debug("Attached device in vm:%s", mount_disk)
output = session.cmd_status_output('lsblk', timeout=15)
logging.debug("%s", output[1])
session.cmd_status_output('mkfs.ext4 %s' % mount_disk)
if mount_disk:
logging.info("%s", mount_disk)
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Can not find mounted device")
session.close()
virsh.reboot(vm_name, debug=True)
session = vm.wait_for_login()
output = session.cmd_status_output('mount')
logging.debug("Mount output: %s", output[1])
if '/mnt' in output[1]:
logging.debug("Mount Successful accross reboot")
session.close()
status = virsh.detach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(status)
finally:
vm.destroy(gracefully=False)
logging.debug('Destroying pool %s', pool_name)
virsh.pool_destroy(pool_name)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if test_unit:
process.system('lvremove -f %s' % test_unit, verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
nodedev.vhbas_cleanup(new_vhbas.split())
process.run("service multipathd restart", shell=True)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if os.path.exists(pool_xml_f):
os.remove(pool_xml_f)
if os.path.exists(disk_xml):
data_dir.clean_tmp_files()
logging.debug("Cleanup disk xml")
if pre_def_pool == "yes":
# Do not apply cleanup_pool for logical pool, logical pool will
# be cleaned below
pvt.cleanup_pool(pool_name, pool_type, pool_target,
emulated_image, **pool_kwargs)
if (test_unit and
(need_vol_create == "yes" and (pre_def_pool == "no")) and
(pool_type == "logical")):
process.system('lvremove -f %s/%s' % (pool_name, test_unit),
verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
utils_npiv.vhbas_cleanup(new_vhbas)
# Restart multipathd, this is to avoid bz1399075
if source_dev:
utils_misc.wait_for(lambda: utils_npiv.restart_multipathd(source_dev),
_DELAY_TIME*5, 0.0, 5.0)
elif mpath_vol_path:
utils_misc.wait_for(lambda: utils_npiv.restart_multipathd(mpath_vol_path),
_DELAY_TIME*5, 0.0, 5.0)
else:
utils_npiv.restart_multipathd()
def run(test, params, env):
"""
1. prepare a vHBA
2. find the nodedev's lun name
3. prepare the lun dev's xml
4. start vm
5. attach disk xml to vm
6. login vm and check the disk
7. detach the virtual disk
8. check the blkdev gone
9. cleanup env.
"""
vm_name = params.get("main_vm", "avocado-vt-vm1")
wwpn = params.get("wwpn", "WWPN_EXAMPLE")
wwnn = params.get("wwnn", "WWNN_EXAMPLE")
disk_device = params.get("disk_device", "disk")
device_type = params.get("device_type", "file")
device_target = params.get("device_target", "vdb")
lun_dir_method = params.get("lun_dir_method", "by-path")
driver_name = params.get("driver_name", "qemu")
driver_type = params.get("driver_type", "raw")
target_bus = params.get("target_bus", "virtio")
readonly = params.get("readonly", "no")
new_vhbas = []
blk_dev = ""
lun_dev = ""
lun_dev_path = ""
lun_sl = []
new_disk = ""
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
vm = env.get_vm(vm_name)
try:
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
old_disk_count = vmxml.get_disk_count(vm_name)
# Prepare vHBA
online_hbas = utils_npiv.find_hbas("hba")
old_vhbas = utils_npiv.find_hbas("vhba")
if not online_hbas:
raise exceptions.TestSkipError("Host doesn't have online hba!")
old_mpath_conf = utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
replace_existing=True)
first_online_hba = online_hbas[0]
new_vhba = utils_npiv.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnn,
"scsi_wwpn": wwpn})
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT)
if not utils_npiv.is_vhbas_added(old_vhbas):
raise exceptions.TestFail("vHBA is not successfully created.")
new_vhbas.append(new_vhba)
new_vhba_scsibus = re.sub("\D", "", new_vhba)
# Get the new block device generated by the new vHBA
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
blk_devs = get_blks_by_scsi(new_vhba_scsibus)
if not blk_devs:
raise exceptions.TestFail("block device not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = blk_devs[0]
# Get the symbolic link of the device in /dev/disk/by-[path|uuid|id]
logging.debug("first_blk_dev = %s, lun_dir_method = %s"
% (first_blk_dev, lun_dir_method))
utils_misc.wait_for(
lambda: get_symbols_by_blk(first_blk_dev, lun_dir_method),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev, lun_dir_method)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found under "
"/dev/disk/%s/ for block device %s." %
(lun_dir_method, blk_dev))
lun_dev = lun_sl[0]
lun_dev_path = "/dev/disk/" + lun_dir_method + "/" + lun_dev
# Prepare xml of virtual disk
disk_params = {'type_name': device_type, 'device': disk_device,
'driver_name': driver_name, 'driver_type': driver_type,
'source_file': lun_dev_path,
'target_dev': device_target, 'target_bus': target_bus,
'readonly': readonly}
disk_xml = os.path.join(data_dir.get_tmp_dir(), 'disk_xml.xml')
lun_disk_xml = utlv.create_disk_xml(disk_params)
copyfile(lun_disk_xml, disk_xml)
if not vm.is_alive():
vm.start()
session = vm.wait_for_login()
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
old_disks = libvirt_vm.get_disks()
# Attach disk
dev_attach_status = virsh.attach_device(
vm_name, disk_xml, debug=True)
utlv.check_exit_status(dev_attach_status)
cur_disk_count = vmxml.get_disk_count(vm_name)
cur_disks = libvirt_vm.get_disks()
if cur_disk_count <= old_disk_count:
raise exceptions.TestFail(
"Failed to attach disk: %s" % lun_disk_xml)
new_disk = "".join(list(set(old_disks) ^ set(cur_disks)))
logging.debug("Attached device in vm:%s", new_disk)
# Check disk in VM
output = session.cmd_status_output('mkfs.ext4 -F %s' % new_disk)
logging.debug("mkfs.ext4 the disk in vm, result: %s", output[1])
if not check_vm_disk(session, new_disk, readonly):
raise exceptions.TestFail("Failed check the disk in vm.")
session.cmd_status_output('umount %s' % new_disk)
# Detach disk
dev_detach_status = virsh.detach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(dev_detach_status)
cur_disks = libvirt_vm.get_disks()
if cur_disks != old_disks:
raise exceptions.TestFail("Detach disk failed.")
session.close()
finally:
utils_npiv.vhbas_cleanup(new_vhbas)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
process.system('service multipathd restart', verbose=True)
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
def run(test, params, env):
"""
1. prepare a vHBA
2. find the nodedev's lun name
3. prepare the lun dev's xml
4. start vm
5. attach disk xml to vm
6. login vm and check the disk
7. detach the virtual disk
8. check the blkdev gone
9. cleanup env.
"""
vm_name = params.get("main_vm", "avocado-vt-vm1")
wwpn = params.get("wwpn", "WWPN_EXAMPLE")
wwnn = params.get("wwnn", "WWNN_EXAMPLE")
disk_device = params.get("disk_device", "disk")
device_type = params.get("device_type", "file")
device_target = params.get("device_target", "vdb")
lun_dir_method = params.get("lun_dir_method", "by-path")
driver_name = params.get("driver_name", "qemu")
driver_type = params.get("driver_type", "raw")
target_bus = params.get("target_bus", "virtio")
readonly = params.get("readonly", "no")
new_vhbas = []
blk_dev = ""
lun_dev = ""
lun_dev_path = ""
lun_sl = []
new_disk = ""
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
vm = env.get_vm(vm_name)
try:
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
old_disk_count = vmxml.get_disk_count(vm_name)
# Prepare vHBA
online_hbas = utils_npiv.find_hbas("hba")
old_vhbas = utils_npiv.find_hbas("vhba")
if not online_hbas:
raise exceptions.TestSkipError("Host doesn't have online hba!")
old_mpath_conf = utils_npiv.prepare_multipath_conf(
conf_path=mpath_conf_path, replace_existing=True)
first_online_hba = online_hbas[0]
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnn,
"scsi_wwpn": wwpn
})
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT)
if not utils_npiv.is_vhbas_added(old_vhbas):
raise exceptions.TestFail("vHBA is not successfully created.")
new_vhbas.append(new_vhba)
new_vhba_scsibus = re.sub("\D", "", new_vhba)
# Get the new block device generated by the new vHBA
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
blk_devs = get_blks_by_scsi(new_vhba_scsibus)
if not blk_devs:
raise exceptions.TestFail("block device not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = blk_devs[0]
# Get the symbolic link of the device in /dev/disk/by-[path|uuid|id]
logging.debug("first_blk_dev = %s, lun_dir_method = %s" %
(first_blk_dev, lun_dir_method))
utils_misc.wait_for(
lambda: get_symbols_by_blk(first_blk_dev, lun_dir_method),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev, lun_dir_method)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found under "
"/dev/disk/%s/ for block device %s." %
(lun_dir_method, blk_dev))
lun_dev = lun_sl[0]
lun_dev_path = "/dev/disk/" + lun_dir_method + "/" + lun_dev
# Prepare xml of virtual disk
disk_params = {
'type_name': device_type,
'device': disk_device,
'driver_name': driver_name,
'driver_type': driver_type,
'source_file': lun_dev_path,
'target_dev': device_target,
'target_bus': target_bus,
'readonly': readonly
}
disk_xml = os.path.join(data_dir.get_tmp_dir(), 'disk_xml.xml')
lun_disk_xml = utlv.create_disk_xml(disk_params)
copyfile(lun_disk_xml, disk_xml)
if not vm.is_alive():
vm.start()
session = vm.wait_for_login()
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
old_disks = libvirt_vm.get_disks()
# Attach disk
dev_attach_status = virsh.attach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(dev_attach_status)
cur_disk_count = vmxml.get_disk_count(vm_name)
cur_disks = libvirt_vm.get_disks()
if cur_disk_count <= old_disk_count:
raise exceptions.TestFail("Failed to attach disk: %s" %
lun_disk_xml)
new_disk = "".join(list(set(old_disks) ^ set(cur_disks)))
logging.debug("Attached device in vm:%s", new_disk)
# Check disk in VM
output = session.cmd_status_output('mkfs.ext4 -F %s' % new_disk)
logging.debug("mkfs.ext4 the disk in vm, result: %s", output[1])
if not check_vm_disk(session, new_disk, readonly):
raise exceptions.TestFail("Failed check the disk in vm.")
session.cmd_status_output('umount %s' % new_disk)
# Detach disk
dev_detach_status = virsh.detach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(dev_detach_status)
cur_disks = libvirt_vm.get_disks()
if cur_disks != old_disks:
raise exceptions.TestFail("Detach disk failed.")
session.close()
finally:
utils_npiv.vhbas_cleanup(new_vhbas)
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
process.system('service multipathd restart', verbose=True)
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
def run(test, params, env):
"""
Test for vhba hostdev passthrough.
1. create a vhba
2. prepare hostdev xml for lun device of the newly created vhba
3.1 If hot attach, attach-device the hostdev xml to vm
3.2 If cold attach, add the hostdev to vm and start it
4. login the vm and check the attached disk
5. detach-device the hostdev xml
6. login the vm to check the partitions
"""
def check_in_vm(vm, target, old_parts):
"""
Check mount/read/write disk in VM.
:param vm: VM guest.
:param target: Disk dev in VM.
:return: True if check successfully.
"""
try:
def get_attached_disk():
session = vm.wait_for_login()
new_parts = utils_disk.get_parts_list(session)
session.close()
added_parts = list(set(new_parts).difference(set(old_parts)))
return added_parts
added_parts = utils_misc.wait_for(get_attached_disk, _TIMEOUT)
logging.info("Added parts:%s", added_parts)
if len(added_parts) != 1:
logging.error("The number of new partitions is invalid in VM")
return False
added_part = None
if target.startswith("vd"):
if added_parts[0].startswith("vd"):
added_part = added_parts[0]
elif target.startswith("hd"):
if added_parts[0].startswith("sd"):
added_part = added_parts[0]
if not added_part:
logging.error("Can't see added partition in VM")
return False
cmd = ("fdisk -l /dev/{0} && mkfs.ext4 -F /dev/{0} && "
"mkdir -p test && mount /dev/{0} test && echo"
" teststring > test/testfile && umount test".format(
added_part))
try:
cmd_status, cmd_output = session.cmd_status_output(cmd)
except Exception as detail:
test.error("Error occurred when run cmd: fdisk, %s" % detail)
logging.info("Check disk operation in VM:\n%s", cmd_output)
session.close()
if cmd_status != 0:
return False
return True
except (remote.LoginError, virt_vm.VMError,
aexpect.ShellError) as detail:
logging.error(str(detail))
return False
try:
status_error = "yes" == params.get("status_error", "no")
vm_name = params.get("main_vm", "avocado-vt-vm1")
device_target = params.get("hostdev_disk_target", "hdb")
scsi_wwnn = params.get("scsi_wwnn", "ENTER.YOUR.WWNN")
scsi_wwpn = params.get("scsi_wwpn", "ENTER.YOUR.WWPN")
attach_method = params.get('attach_method', 'hot')
vm = env.get_vm(vm_name)
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
virsh_dargs = {'debug': True, 'ignore_status': True}
new_vhbas = []
if scsi_wwnn.count("ENTER.YOUR.WWNN") or \
scsi_wwpn.count("ENTER.YOUR.WWPN"):
test.cancel("You didn't provide proper wwpn/wwnn")
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
old_parts = utils_disk.get_parts_list(session)
# find first online hba
online_hbas = []
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
test.cancel("NO ONLINE HBAs!")
first_online_hba = online_hbas[0]
# create vhba based on the first online hba
old_vhbas = utils_npiv.find_hbas("vhba")
logging.debug("Original online vHBAs: %s", old_vhbas)
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": first_online_hba,
"scsi_wwnn": scsi_wwnn,
"scsi_wwpn": scsi_wwpn
})
# enable multipath service
process.run("mpathconf --enable", shell=True)
if not utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT):
test.fail("vhba not successfully created")
new_vhbas.append(new_vhba)
# find first available lun of the newly created vhba
lun_dicts = []
first_lun = {}
if not utils_misc.wait_for(lambda: utils_npiv.find_scsi_luns(new_vhba),
timeout=_TIMEOUT):
test.fail("There is no available lun storage for "
"wwpn: %s, please check your wwns or "
"contact IT admins" % scsi_wwpn)
lun_dicts = utils_npiv.find_scsi_luns(new_vhba)
logging.debug("The luns discovered are: %s", lun_dicts)
first_lun = lun_dicts[0]
# prepare hostdev xml for the first lun
kwargs = {
'addr_bus': first_lun['bus'],
'addr_target': first_lun['target'],
'addr_unit': first_lun['unit']
}
new_hostdev_xml = utils_npiv.create_hostdev_xml(
adapter_name="scsi_host" + first_lun['scsi'], **kwargs)
logging.info("New hostdev xml as follow:")
logging.info(new_hostdev_xml)
new_hostdev_xml.xmltreefile.write()
if attach_method == "hot":
# attach-device the lun's hostdev xml to guest vm
result = virsh.attach_device(vm_name, new_hostdev_xml.xml)
libvirt.check_exit_status(result, status_error)
elif attach_method == "cold":
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml.devices = vmxml.devices.append(new_hostdev_xml)
vmxml.sync()
vm.start()
session = vm.wait_for_login()
logging.debug("The new vm's xml is: \n%s", vmxml)
# login vm and check the disk
check_result = check_in_vm(vm, device_target, old_parts)
if not check_result:
test.fail("check disk in vm failed")
result = virsh.detach_device(vm_name, new_hostdev_xml.xml)
libvirt.check_exit_status(result, status_error)
# login vm and check disk actually removed
parts_after_detach = utils_disk.get_parts_list(session)
old_parts.sort()
parts_after_detach.sort()
if parts_after_detach == old_parts:
logging.info("hostdev successfully detached.")
else:
test.fail("Device not successfully detached. "
"Still existing in vm's /proc/partitions")
finally:
utils_npiv.vhbas_cleanup(new_vhbas)
# recover vm
if vm.is_alive():
vm.destroy(gracefully=False)
logging.info("Restoring vm...")
vmxml_backup.sync()
process.system('service multipathd restart', verbose=True)
def run(test, params, env):
"""
Test command: virsh pool-define-as; pool-build; pool-start; vol-create-as;
vol-list; attach-device; login; mount and dd; reboot; check persistence;
detach-device; pool-destroy; pool-undefine; clear lv,vg and pv;
Create a libvirt npiv pool from a vHBA's device mapper device and create
a volume out of the newly created pool and attach it to a guest, mount it,
reboot and check persistence after reboot.
Pre-requisite :
Host should have a vHBA associated with a mpath device
"""
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pool_type = params.get("pool_type", "dir")
scsi_wwpn = params.get("scsi_wwpn", "WWPN_EXAMPLE")
scsi_wwnn = params.get("scsi_wwnn", "WWNN_EXAMPLE")
pool_target = params.get("pool_target", "pool_target")
target_device = params.get("disk_target_dev", "vda")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
frmt = params.get("volume_format", 'qcow2')
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mount_disk = None
test_unit = None
if 'EXAMPLE' in scsi_wwnn or 'EXAMPLE' in scsi_wwpn:
raise exceptions.TestSkipError("Please provide proper WWPN/WWNN")
if not vm.is_alive():
vm.start()
pool_extra_args = ""
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
process.run("service multipathd restart", shell=True)
online_hbas_list = nodedev.find_hbas("hba")
first_online_hba = online_hbas_list[0]
old_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the old mpath devs are: %s" % old_mpath_devs)
new_vhbas = nodedev.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": scsi_wwnn,
"scsi_wwpn": scsi_wwpn})
logging.info("Newly created vHBA %s" % new_vhbas)
process.run("service multipathd restart", shell=True)
utils_misc.wait_for(
lambda: nodedev.is_mpath_devs_added(old_mpath_devs), timeout=5)
cur_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the current mpath devs are: %s" % cur_mpath_devs)
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("newly added mpath devs are: %s" % new_mpath_devs)
if not new_mpath_devs:
raise exceptions.TestFail("No newly added mpath devices found, \
please check your FC settings")
source_dev = os.path.join('/dev/mapper/', new_mpath_devs[0])
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool" % source_dev)
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
utlv.check_exit_status(cmd_result)
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
else:
raise exceptions.TestFail(
"The vHBA %s does not have any associated mpath device" % new_vhbas)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
# if no online hba cards on host, mark case failed
if not online_hbas_list:
raise exceptions.TestSkipError("Host doesn't have online hba cards")
try:
cmd_result = virsh.pool_define_as(
pool_name, pool_type, pool_target, pool_extra_args, ignore_status=True,
debug=True)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_build(pool_name)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_start(pool_name)
utlv.check_exit_status(cmd_result)
utlv.check_actived_pool(pool_name)
pool_detail = libvirt_xml.PoolXML.get_pool_details(pool_name)
logging.debug("Pool detail: %s", pool_detail)
cmd_result = virsh.vol_create_as(
volume_name, pool_name, volume_capacity, allocation, frmt, "", debug=True)
utlv.check_exit_status(cmd_result)
vol_list = utlv.get_vol_list(pool_name, timeout=10)
logging.debug('Volume list %s', vol_list)
for unit in vol_list:
test_unit = vol_list[unit]
logging.debug(unit)
disk_params = {'type_name': "file", 'target_dev': target_device,
'target_bus': "virtio", 'source_file': test_unit,
'driver_name': "qemu", 'driver_type': "raw"}
disk_xml = utlv.create_disk_xml(disk_params)
session = vm.wait_for_login()
bf_disks = libvirt_vm.get_disks()
attach_success = virsh.attach_device(
vm_name, disk_xml, debug=True)
utlv.check_exit_status(attach_success)
logging.debug("Disks before attach: %s", bf_disks)
af_disks = libvirt_vm.get_disks()
logging.debug("Disks after attach: %s", af_disks)
mount_disk = "".join(list(set(bf_disks) ^ set(af_disks)))
if not mount_disk:
raise exceptions.TestFail("Can not get attached device in vm.")
logging.debug("Attached device in vm:%s", mount_disk)
output = session.cmd_status_output('lsblk', timeout=15)
logging.debug("%s", output[1])
session.cmd_status_output('mkfs.ext4 %s' % mount_disk)
if mount_disk:
logging.info("%s", mount_disk)
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Can not find mounted device")
session.close()
virsh.reboot(vm_name, debug=True)
session = vm.wait_for_login()
output = session.cmd_status_output('mount')
logging.debug("Mount output: %s", output[1])
if '/mnt' in output[1]:
logging.debug("Mount Successful accross reboot")
session.close()
status = virsh.detach_device(vm_name, disk_xml,
debug=True)
utlv.check_exit_status(status)
finally:
vm.destroy(gracefully=False)
logging.debug('Destroying pool %s', pool_name)
virsh.pool_destroy(pool_name)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if test_unit:
process.system('lvremove -f %s' % test_unit, verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
nodedev.vhbas_cleanup(new_vhbas.split())
process.run("service multipathd restart", shell=True)
virsh.pool_undefine(pool_name)
if os.path.exists(pool_xml_f):
os.remove(pool_xml_f)
if os.path.exists(disk_xml):
data_dir.clean_tmp_files()
logging.debug("Cleanup disk xml")
if pre_def_pool == "yes":
# Do not apply cleanup_pool for logical pool, logical pool will
# be cleaned below
pvt.cleanup_pool(pool_name, pool_type, pool_target, emulated_image,
**pool_kwargs)
if (test_unit and (need_vol_create == "yes" and (pre_def_pool == "no"))
and (pool_type == "logical")):
process.system('lvremove -f %s/%s' % (pool_name, test_unit),
verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
utils_npiv.vhbas_cleanup(new_vhbas)
# Restart multipathd, this is to avoid bz1399075
if source_dev:
utils_misc.wait_for(
lambda: utils_npiv.restart_multipathd(source_dev),
_DELAY_TIME * 5, 0.0, 5.0)
elif mpath_vol_path:
utils_misc.wait_for(
lambda: utils_npiv.restart_multipathd(mpath_vol_path),
_DELAY_TIME * 5, 0.0, 5.0)
else:
utils_npiv.restart_multipathd()
def run(test, params, env):
"""
Test for vhba hostdev passthrough.
1. create a vhba
2. prepare hostdev xml for lun device of the newly created vhba
3.1 If hot attach, attach-device the hostdev xml to vm
3.2 If cold attach, add the hostdev to vm and start it
4. login the vm and check the attached disk
5. detach-device the hostdev xml
6. login the vm to check the partitions
"""
def check_in_vm(vm, target, old_parts):
"""
Check mount/read/write disk in VM.
:param vm: VM guest.
:param target: Disk dev in VM.
:return: True if check successfully.
"""
try:
session = vm.wait_for_login()
new_parts = libvirt.get_parts_list(session)
added_parts = list(set(new_parts).difference(set(old_parts)))
logging.info("Added parts:%s", added_parts)
if len(added_parts) != 1:
logging.error("The number of new partitions is invalid in VM")
return False
added_part = None
if target.startswith("vd"):
if added_parts[0].startswith("vd"):
added_part = added_parts[0]
elif target.startswith("hd"):
if added_parts[0].startswith("sd"):
added_part = added_parts[0]
if not added_part:
logging.error("Can't see added partition in VM")
return False
cmd = ("fdisk -l /dev/{0} && mkfs.ext4 -F /dev/{0} && "
"mkdir -p test && mount /dev/{0} test && echo"
" teststring > test/testfile && umount test"
.format(added_part))
try:
cmd_status, cmd_output = session.cmd_status_output(cmd)
except Exception as detail:
test.error("Error occurred when run cmd: fdisk, %s" % detail)
logging.info("Check disk operation in VM:\n%s", cmd_output)
session.close()
if cmd_status != 0:
return False
return True
except (remote.LoginError, virt_vm.VMError, aexpect.ShellError) as detail:
logging.error(str(detail))
return False
try:
status_error = "yes" == params.get("status_error", "no")
vm_name = params.get("main_vm", "avocado-vt-vm1")
device_target = params.get("hostdev_disk_target", "hdb")
scsi_wwnn = params.get("scsi_wwnn", "ENTER.YOUR.WWNN")
scsi_wwpn = params.get("scsi_wwpn", "ENTER.YOUR.WWPN")
attach_method = params.get('attach_method', 'hot')
vm = env.get_vm(vm_name)
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
virsh_dargs = {'debug': True, 'ignore_status': True}
new_vhbas = []
if scsi_wwnn.count("ENTER.YOUR.WWNN") or \
scsi_wwpn.count("ENTER.YOUR.WWPN"):
test.cancel("You didn't provide proper wwpn/wwnn")
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
old_parts = libvirt.get_parts_list(session)
# find first online hba
online_hbas = []
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
test.cancel("NO ONLINE HBAs!")
first_online_hba = online_hbas[0]
# create vhba based on the first online hba
old_vhbas = utils_npiv.find_hbas("vhba")
logging.debug("Original online vHBAs: %s", old_vhbas)
new_vhba = utils_npiv.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": scsi_wwnn,
"scsi_wwpn": scsi_wwpn})
if not utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT):
test.fail("vhba not successfully created")
new_vhbas.append(new_vhba)
# find first available lun of the newly created vhba
lun_dicts = []
first_lun = {}
if not utils_misc.wait_for(lambda: utils_npiv.find_scsi_luns(new_vhba),
timeout=_TIMEOUT):
test.fail("There is no available lun storage for "
"wwpn: %s, please check your wwns or "
"contact IT admins" % scsi_wwpn)
lun_dicts = utils_npiv.find_scsi_luns(new_vhba)
logging.debug("The luns discovered are: %s", lun_dicts)
first_lun = lun_dicts[0]
# prepare hostdev xml for the first lun
kwargs = {'addr_bus': first_lun['bus'],
'addr_target': first_lun['target'],
'addr_unit': first_lun['unit']}
new_hostdev_xml = utils_npiv.create_hostdev_xml(
adapter_name="scsi_host"+first_lun['scsi'],
**kwargs)
logging.info("New hostdev xml as follow:")
logging.info(new_hostdev_xml)
new_hostdev_xml.xmltreefile.write()
if attach_method == "hot":
# attach-device the lun's hostdev xml to guest vm
result = virsh.attach_device(vm_name, new_hostdev_xml.xml)
libvirt.check_exit_status(result, status_error)
elif attach_method == "cold":
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml.devices = vmxml.devices.append(new_hostdev_xml)
vmxml.sync()
vm.start()
session = vm.wait_for_login()
logging.debug("The new vm's xml is: \n%s", vmxml)
# login vm and check the disk
check_result = check_in_vm(vm, device_target, old_parts)
if not check_result:
test.fail("check disk in vm failed")
result = virsh.detach_device(vm_name, new_hostdev_xml.xml)
libvirt.check_exit_status(result, status_error)
# login vm and check disk actually removed
parts_after_detach = libvirt.get_parts_list(session)
old_parts.sort()
parts_after_detach.sort()
if parts_after_detach == old_parts:
logging.info("hostdev successfully detached.")
else:
test.fail("Device not successfully detached. "
"Still existing in vm's /proc/partitions")
finally:
utils_npiv.vhbas_cleanup(new_vhbas)
# recover vm
if vm.is_alive():
vm.destroy(gracefully=False)
logging.info("Restoring vm...")
vmxml_backup.sync()
process.system('service multipathd restart', verbose=True)