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#!/usr/bin/python
# BSD LICENSE
#
# Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import time
import utils
from settings import CONFIG_ROOT_PATH, get_netdev
from config import VirtConf
from config import VIRTCONF
from exception import *
from qemu_kvm import QEMUKvm
from pmd_output import PmdOutput
from utils import create_mask
# scenario module for handling scenario
# 1. load configurations
# config saved in conf/scenarios/name.cfg
# load configurations will saved in vm list
# 2. handle special config
# pf_idx=0,vf_num=2,driver=default;
# PF0 igb_uio, create 2VFs by default driver
# 3. create scenario
# allocate hareware resource for this vm
# cpu, memory, pf devices, vf devices
# configuration vm
# run pre_vm commands
# create vm
# run post_vm commands
class VirtScene(object):
def __init__(self, dut, tester, scene_name):
self.name = scene_name
self.host_dut = dut
self.tester_dut = tester
self.pre_cmds = []
self.post_cmds = []
self.vm_dut_enable = False
self.auto_portmap = True
self.vm_type = 'kvm'
self.def_target = "x86_64-native-linuxapp-gcc"
self.host_bound = False
# for vm dut init_log
self.host_dut.test_classname = 'dts'
def load_config(self):
try:
self.vm_confs = {}
conf = VirtConf(CONFIG_ROOT_PATH + 'scene/' + self.name + '.cfg')
self.sections = conf.virt_conf.get_sections()
for vm in self.sections:
conf.load_virt_config(vm)
vm_conf = conf.get_virt_config()
self.vm_confs[vm] = vm_conf
except:
raise VirtConfigParseException
def prepare_vm(self):
host_cfg = None
for conf in self.vm_confs.keys():
if conf == 'scene':
for cfg in self.vm_confs['scene']:
if 'suite' in cfg.keys():
self.prepare_suite(cfg['suite'])
if 'host' in cfg.keys():
self.host_bound = True
host_cfg = cfg['host'][0]
self.vm_confs.pop('scene')
else:
vm_name = conf
vm_conf = self.vm_confs[vm_name]
self.prepare_cpu(vm_name, vm_conf)
self.prepare_devices(vm_conf)
self.prepare_vmdevice(vm_conf)
# dpdk should start after vf devices created
if host_cfg:
self.prepare_host(**host_cfg)
def cleanup_vm(self):
# reload config for has been changed when handle config
self.load_config()
for conf in self.vm_confs.keys():
if conf != 'scene':
vm_name = conf
vm_conf = self.vm_confs[vm_name]
self.cleanup_devices(vm_conf)
def prepare_suite(self, conf):
for param in conf:
if 'dut' in param.keys():
if param['dut'] == 'vm_dut':
self.vm_dut_enable = True
if 'type' in param.keys():
if param['type'] == 'xen':
self.vm_type = 'xen'
# not implement yet
if param['type'] == 'vmware':
self.vm_type = 'vmware'
# not implement yet
if param['type'] == 'container':
self.vm_type = 'container'
if 'portmap' in param.keys():
if param['portmap'] == 'cfg':
self.auto_portmap = False
def prepare_host(self, **opts):
if 'dpdk' not in opts.keys():
print utils.RED("Scenario host parameter request dpdk option!!!")
raise VirtConfigParamException('host')
if 'cores' not in opts.keys():
print utils.RED("Scenario host parameter request cores option!!!")
raise VirtConfigParamException('host')
if 'target' in opts.keys():
target = opts['target']
else:
target = self.def_target
self.host_dut.set_target(target, bind_dev=True)
if opts['dpdk'] == 'testpmd':
self.pmdout = PmdOutput(self.host_dut)
cores = opts['cores'].split()
out = self.pmdout.start_testpmd(cores)
if 'Error' in out:
raise VirtHostPrepareException()
def prepare_cpu(self, vm_name, conf):
cpu_param = {}
for params in conf:
if 'cpu' in params.keys():
cpu_conf = params['cpu'][0]
break
if 'skipcores' in cpu_conf.keys():
cpus = cpu_conf['skipcores'].split()
# remove invalid configured core
for cpu in cpus:
if int(cpu) not in self.host_dut.virt_pool.cores:
cpus.remove(cpu)
# create core mask for reserver cores
core_mask = create_mask(cpus)
# reserve those skipped cores
self.host_dut.virt_pool.reserve_cpu(core_mask)
if 'numa' in cpu_conf.keys():
if cpu_conf['numa'] == 'auto':
numa = self.host_dut.ports_info[0]['port'].socket
else:
numa = int(cpu_conf['numa'])
else:
numa = 0
if 'number' in cpu_conf.keys():
num = int(cpu_conf['number'])
else:
num = 2
if 'model' in cpu_conf.keys():
model = cpu_conf['model']
else:
model = 'host'
cpu_topo = ''
if 'cpu_topo' in cpu_conf.keys():
cpu_topo = cpu_conf['cpu_topo']
pin_cores = []
if 'cpu_pin' in cpu_conf.keys():
pin_cores = cpu_conf['cpu_pin'].split()
if len(pin_cores):
cores = self.host_dut.virt_pool.alloc_cpu(vm=vm_name, corelist=pin_cores)
else:
cores = self.host_dut.virt_pool.alloc_cpu(vm=vm_name, number=num,
socket=numa)
core_cfg = ''
for core in cores:
core_cfg += '%s ' % core
core_cfg = core_cfg[:-1]
cpu_param['number'] = num
cpu_param['model'] = model
cpu_param['cpupin'] = core_cfg
cpu_param['cputopo'] = cpu_topo
# replace with allocated cpus
params['cpu'] = [cpu_param]
def prepare_devices(self, conf):
for params in conf:
if 'dev_gen' in params.keys():
index = conf.index(params)
for param in params['dev_gen']:
self.handle_dev_gen(**param)
# remove handled 'dev_gen' configuration
conf.remove(conf[index])
def cleanup_devices(self, conf):
for params in conf:
if 'dev_gen' in params.keys():
for param in params['dev_gen']:
self.handle_dev_destroy(**param)
def prepare_vmdevice(self, conf):
for params in conf:
if 'device' in params.keys():
for param in params['device']:
if 'vf_idx' in param.keys():
new_param = self.prepare_vf_conf(param)
index = params['device'].index(param)
params['device'][index] = new_param
elif 'pf_idx' in param.keys():
new_param = self.prepare_pf_conf(param)
index = params['device'].index(param)
params['device'][index] = new_param
for param in params['device']:
netdev = get_netdev(self.host_dut, param['opt_host'])
if netdev is not None:
netdev.bind_driver('pci-stub')
def prepare_pf_conf(self, param):
pf_param = {}
# strip pf pci id
pf = int(param['pf_idx'])
if pf >= len(self.host_dut.ports_info):
raise VirtDeviceCreateException
pf_pci = self.host_dut.ports_info[pf]['pci']
pf_param['driver'] = 'pci-assign'
pf_param['opt_host'] = pf_pci
if param['guestpci'] != 'auto':
pf_param['opt_addr'] = param['guestpci']
return pf_param
def prepare_vf_conf(self, param):
vf_param = {}
# strip vf pci id
if 'pf_dev' in param.keys():
pf = int(param['pf_dev'])
pf_net = self.host_dut.ports_info[pf]['port']
vfs = self.host_dut.ports_info[pf]['vfs_port']
vf_idx = int(param['vf_idx'])
if vf_idx >= len(vfs):
raise VirtDeviceCreateException
vf_pci = vfs[vf_idx].pci
vf_param['driver'] = 'pci-assign'
vf_param['opt_host'] = vf_pci
if param['guestpci'] != 'auto':
vf_param['opt_addr'] = param['guestpci']
if 'mac' in param.keys():
pf_net.set_vf_mac_addr(vf_idx, param['mac'])
else:
print utils.RED("Invalid vf device config, request pf_dev")
return vf_param
def reset_pf_cmds(self, port):
command = {}
command['type'] = 'host'
if not self.host_bound:
intf = self.host_dut.ports_info[port]['intf']
command['command'] = 'ifconfig %s up' % intf
self.reg_postvm_cmds(command)
def handle_dev_gen(self, **opts):
if 'pf_idx' in opts.keys():
port = int(opts['pf_idx'])
if 'vf_num' in opts.keys():
vf_num = int(opts['vf_num'])
else:
print utils.RED("No vf_num for port %d, assum one VF" % port)
vf_num = 1
if 'driver' in opts.keys():
driver = opts['driver']
try:
print utils.GREEN("create vf %d %d %s" % (port, vf_num, driver))
self.host_dut.generate_sriov_vfs_by_port(port, vf_num, driver)
self.reset_pf_cmds(port)
except:
print utils.RED("Failed to create vf as requested!!!")
raise VirtDeviceCreateException
def handle_dev_destroy(self, **opts):
if 'pf_idx' in opts.keys():
port = int(opts['pf_idx'])
try:
print utils.GREEN("destroy vfs on port %d" % port)
self.host_dut.destroy_sriov_vfs_by_port(port)
except:
print utils.RED("Failed to destroy vf as requested!!!")
def reg_prevm_cmds(self, command):
"""
command: {'type':'host/tester/vm',
define which crb command progress
'command':'XXX',
command send to crb
'expect':'XXX',
expected output for command
'timeout': 60,
'verify': True or False
check whether command sucessfully
}
"""
self.pre_cmds.append(command)
def run_pre_cmds(self):
for cmd in self.pre_cmds:
if cmd['type'] == 'vm':
print utils.RED("Can't run vm command when vm not ready")
elif cmd['type'] == 'host':
crb = self.host_dut
elif cmd['type'] == 'tester':
crb = self.tester
else:
crb = self.host_dut
if 'expect' not in cmd.keys():
expect = "# "
else:
expect = cmd['expect']
if 'verify' not in cmd.keys():
verify = False
else:
verify = cmd['verify']
if 'timeout' not in cmd.keys():
timeout = 5
else:
timeout = cmd['timeout']
ret = crb.send_expect(cmd['command'], expect, timeout=timeout,
verify=verify)
if type(ret) is int and ret != 0:
print utils.RED("Failed to run command %s" % cmd['command'])
raise VirtVmOperationException
def reg_postvm_cmds(self, command):
"""
command: {'type':'host/tester/vm',
define which crb command progress
'command':'XXX',
command send to crb
'expect':'XXX',
expected output for command
'verify':'yes or no'
check whether command sucessfully
"""
self.post_cmds.append(command)
pass
def run_post_cmds(self):
for cmd in self.post_cmds:
if cmd['type'] == 'vm':
crb = self.vm_dut
elif cmd['type'] == 'host':
crb = self.host_dut
elif cmd['type'] == 'tester':
crb = self.tester
else:
crb = self.host_dut
if 'expect' not in cmd.keys():
expect = "# "
else:
expect = cmd['expect']
if 'verify' not in cmd.keys():
verify = False
else:
verify = cmd['verify']
if 'timeout' not in cmd.keys():
timeout = 5
else:
timeout = cmd['timeout']
ret = crb.send_expect(cmd['command'], expect, timeout=timeout,
verify=verify)
if type(ret) is int and ret != 0:
print utils.RED("Failed to run command %s" % cmd['command'])
raise VirtVmOperationException
def merge_params(self, vm, params):
for param in params:
index = vm.find_option_index(param.keys()[0])
if index is not None:
vm.params[index] = param
else:
vm.params.append(param)
index = vm.find_option_index('name')
# update vm name
vm.params[index]['name'][0]['name'] = vm.vm_name
def get_cputopo(self, params):
for param in params:
if 'cpu' in param.keys():
cpu_topo = param['cpu'][0]['cputopo']
return cpu_topo
def start_vms(self):
self.vms = []
if self.vm_type == 'kvm':
for vm_name in self.vm_confs.keys():
# tricky here, QEMUKvm based on suite and vm name
# suite is virt_global, vm_name just the type
vm = QEMUKvm(self.host_dut, self.vm_type.upper(),
'virt_global')
vm.load_config()
vm.vm_name = vm_name
vm.set_vm_default()
# merge default config and scene config
scene_params = self.vm_confs[vm_name]
# reload merged configurations
self.merge_params(vm, scene_params)
# get cpu topo
topo = self.get_cputopo(scene_params)
try:
vm_dut = vm.start(load_config=False, set_target=False,
auto_portmap=self.auto_portmap,
cpu_topo=topo)
if vm_dut is None:
raise Exception("Set up VM ENV failed!")
vm_info = {}
vm_info[vm_name] = vm
vm_info[vm_name + '_session'] = vm_dut
self.vms.append(vm_info)
except Exception as e:
print utils.RED("Failure for %s" % str(e))
def get_vm_duts(self):
duts = []
for vm_info in self.vms:
for vm_obj in vm_info.keys():
if 'session' in vm_obj:
duts.append(vm_info[vm_obj])
return duts
def create_scene(self):
self.prepare_vm()
self.run_pre_cmds()
self.start_vms()
self.run_post_cmds()
pass
def set_target(self, target):
for vm_info in self.vms:
for vm_obj in vm_info.keys():
if 'session' in vm_obj:
vm_info[vm_obj].set_target(target)
def destroy_scene(self):
for vm_info in self.vms:
for vm_obj in vm_info.keys():
if 'session' in vm_obj:
vm_info[vm_obj].kill_all()
vm_info[vm_obj].close()
vm_info[vm_obj].logger.logger_exit()
for vm_obj in vm_info.keys():
if 'session' not in vm_obj:
vm_info[vm_obj].stop()
vm_info[vm_obj] = None
self.cleanup_vm()
if __name__ == "__main__":
class QEMUKvm():
def __init__(self, dut, vm_name, suite_name):
print vm_name
print suite_name
def start(self):
print self.params
return True
class simple_dev(object):
def __init__(self, pci):
self.pci = pci
self.socket = 1
emu_dev1 = simple_dev("00:00.1")
emu_dev2 = simple_dev("00:00.2")
emu_dev3 = simple_dev("00:00.3")
emu_dev4 = simple_dev("00:00.4")
class simple_dut(object):
def __init__(self):
self.ports_info = [
{'vfs_port': [emu_dev1, emu_dev2]},
{'vfs_port': [emu_dev3, emu_dev4]},
]
self.virt_pool = simple_resource()
def send_expect(self, cmds, expected, timeout=5,
alt_session=False, verify=False):
print cmds + "---" + expected
class simple_resource(object):
def __init__(self):
pass
def reserve_cpu(self, coremask):
print "reserve " + coremask
def alloc_cpu(self, vm='', number=-1, socket=-1, corelist=None):
print "alloc %s num %d on socket %d" % (vm, number, socket)
dut = simple_dut()
scene = VirtScene(dut, None, "vf_passthrough")
scene.load_config()
scene.create_scene()
scene.destroy_scene()
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