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authorMartin Klozik <martinx.klozik@intel.com>2016-08-16 14:59:05 +0100
committerMartin Klozik <martinx.klozik@intel.com>2016-09-01 14:52:49 +0100
commitc9cd093f2f441adc9dd33627255326008e021a67 (patch)
treedcf81dde95fbc91e65f8670841ffdbfb65a6c4a6 /vnfs/qemu
parentb2289e1f6abab2d807eb55d9ec868039dc2384e2 (diff)
multi VM: Multi VMs in serial or parallel
Support for deployment scenarios with any number of VMs in both serial and parallel configuration. Detailed content of the patch: * VswitchControllerPXP class for multi VM support * pvvpxx and pvpvxx deployments for xx VMs in serial respective parallel configuration * special GUEST_ options expansion to requested number of VMs; * support of GUEST_ options specific macros #VMINDEX, #MAC(), #IP() and #EVAL() * all GUEST specific options are turned to lists to be VM specific * support for VM with 1 NIC * support for VM with multiple NIC pairs; traffic is routed in serial or parallel between NIC paris based on deployment scenario * support for PVVP and PVPV scenarios using VMs with different numbers of NICs JIRA: VSPERF-361 Change-Id: I05bedbdfa9a81ea0166d9b03d83ae49d6cb8b19b Signed-off-by: Martin Klozik <martinx.klozik@intel.com> Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com> Reviewed-by: Al Morton <acmorton@att.com> Reviewed-by: Christian Trautman <ctrautma@redhat.com> Reviewed-by: Bill Michalowski <bmichalo@redhat.com> Reviewed-by: Antonio Fischetti <antonio.fischetti@intel.com>
Diffstat (limited to 'vnfs/qemu')
-rw-r--r--vnfs/qemu/qemu.py157
-rw-r--r--vnfs/qemu/qemu_dpdk_vhost_user.py65
-rw-r--r--vnfs/qemu/qemu_virtio_net.py54
3 files changed, 134 insertions, 142 deletions
diff --git a/vnfs/qemu/qemu.py b/vnfs/qemu/qemu.py
index dd9ad818..a9343fd4 100644
--- a/vnfs/qemu/qemu.py
+++ b/vnfs/qemu/qemu.py
@@ -32,7 +32,7 @@ class IVnfQemu(IVnf):
Abstract class for controling an instance of QEMU
"""
_cmd = None
- _expect = S.getValue('GUEST_PROMPT_LOGIN')
+ _expect = None
_proc_name = 'qemu'
class GuestCommandFilter(logging.Filter):
@@ -47,28 +47,32 @@ class IVnfQemu(IVnf):
Initialisation function.
"""
super(IVnfQemu, self).__init__()
+
+ self._expect = S.getValue('GUEST_PROMPT_LOGIN')[self._number]
self._logger = logging.getLogger(__name__)
self._logfile = os.path.join(
S.getValue('LOG_DIR'),
S.getValue('LOG_FILE_QEMU')) + str(self._number)
self._timeout = S.getValue('GUEST_TIMEOUT')[self._number]
self._monitor = '%s/vm%dmonitor' % ('/tmp', self._number)
- self._net1 = get_test_param('guest_nic1_name', None)
- if self._net1 == None:
- self._net1 = S.getValue('GUEST_NIC1_NAME')[self._number]
- else:
- self._net1 = self._net1.split(',')[self._number]
- self._net2 = get_test_param('guest_nic2_name', None)
- if self._net2 == None:
- self._net2 = S.getValue('GUEST_NIC2_NAME')[self._number]
- else:
- self._net2 = self._net2.split(',')[self._number]
+ # read GUEST NICs configuration and use only defined NR of NICS
+ nics_nr = S.getValue('GUEST_NICS_NR')[self._number]
+ # and inform user about missconfiguration
+ if nics_nr < 1:
+ raise RuntimeError('At least one VM NIC is mandotory, but {} '
+ 'NICs are configured'.format(nics_nr))
+ elif nics_nr > 1 and nics_nr % 2:
+ nics_nr = int(nics_nr / 2) * 2
+ self._logger.warning('Odd number of NICs is configured, only '
+ '%s NICs will be used', nics_nr)
+
+ self._nics = S.getValue('GUEST_NICS')[self._number][:nics_nr]
# set guest loopback application based on VNF configuration
# cli option take precedence to config file values
self._guest_loopback = S.getValue('GUEST_LOOPBACK')[self._number]
- self._testpmd_fwd_mode = S.getValue('GUEST_TESTPMD_FWD_MODE')
+ self._testpmd_fwd_mode = S.getValue('GUEST_TESTPMD_FWD_MODE')[self._number]
# in case of SRIOV we must ensure, that MAC addresses are not swapped
if S.getValue('SRIOV_ENABLED') and self._testpmd_fwd_mode.startswith('mac') and \
not S.getValue('VNF').endswith('PciPassthrough'):
@@ -86,7 +90,7 @@ class IVnfQemu(IVnf):
'-smp', str(S.getValue('GUEST_SMP')[self._number]),
'-cpu', 'host,migratable=off',
'-drive', 'if={},file='.format(S.getValue(
- 'GUEST_BOOT_DRIVE_TYPE')) +
+ 'GUEST_BOOT_DRIVE_TYPE')[self._number]) +
S.getValue('GUEST_IMAGE')[self._number],
'-boot', 'c', '--enable-kvm',
'-monitor', 'unix:%s,server,nowait' % self._monitor,
@@ -99,7 +103,7 @@ class IVnfQemu(IVnf):
'-snapshot', '-net none', '-no-reboot',
'-drive',
'if=%s,format=raw,file=fat:rw:%s,snapshot=off' %
- (S.getValue('GUEST_SHARED_DRIVE_TYPE'),
+ (S.getValue('GUEST_SHARED_DRIVE_TYPE')[self._number],
S.getValue('GUEST_SHARE_DIR')[self._number]),
]
self._configure_logging()
@@ -181,11 +185,11 @@ class IVnfQemu(IVnf):
if not self._timeout:
self._expect_process(timeout=timeout)
- self._child.sendline(S.getValue('GUEST_USERNAME'))
- self._child.expect(S.getValue('GUEST_PROMPT_PASSWORD'), timeout=5)
- self._child.sendline(S.getValue('GUEST_PASSWORD'))
+ self._child.sendline(S.getValue('GUEST_USERNAME')[self._number])
+ self._child.expect(S.getValue('GUEST_PROMPT_PASSWORD')[self._number], timeout=5)
+ self._child.sendline(S.getValue('GUEST_PASSWORD')[self._number])
- self._expect_process(S.getValue('GUEST_PROMPT'), timeout=5)
+ self._expect_process(S.getValue('GUEST_PROMPT')[self._number], timeout=5)
def send_and_pass(self, cmd, timeout=30):
"""
@@ -197,10 +201,10 @@ class IVnfQemu(IVnf):
:returns: None
"""
self.execute(cmd)
- self.wait(S.getValue('GUEST_PROMPT'), timeout=timeout)
+ self.wait(S.getValue('GUEST_PROMPT')[self._number], timeout=timeout)
self.execute('echo $?')
self._child.expect('^0$', timeout=1) # expect a 0
- self.wait(S.getValue('GUEST_PROMPT'), timeout=timeout)
+ self.wait(S.getValue('GUEST_PROMPT')[self._number], timeout=timeout)
def _affinitize(self):
"""
@@ -285,11 +289,14 @@ class IVnfQemu(IVnf):
self._logger.error('Unsupported guest loopback method "%s" was specified. Option'
' "buildin" will be used as a fallback.', self._guest_loopback)
- def wait(self, prompt=S.getValue('GUEST_PROMPT'), timeout=30):
+ def wait(self, prompt=None, timeout=30):
+ if prompt is None:
+ prompt = S.getValue('GUEST_PROMPT')[self._number]
super(IVnfQemu, self).wait(prompt=prompt, timeout=timeout)
- def execute_and_wait(self, cmd, timeout=30,
- prompt=S.getValue('GUEST_PROMPT')):
+ def execute_and_wait(self, cmd, timeout=30, prompt=None):
+ if prompt is None:
+ prompt = S.getValue('GUEST_PROMPT')[self._number]
super(IVnfQemu, self).execute_and_wait(cmd, timeout=timeout,
prompt=prompt)
@@ -305,13 +312,13 @@ class IVnfQemu(IVnf):
"""
# mount shared directory
self.execute_and_wait('umount /dev/sdb1')
- self.execute_and_wait('rm -rf ' + S.getValue('GUEST_OVS_DPDK_DIR'))
- self.execute_and_wait('mkdir -p ' + S.getValue('OVS_DPDK_SHARE'))
+ self.execute_and_wait('rm -rf ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number])
+ self.execute_and_wait('mkdir -p ' + S.getValue('GUEST_OVS_DPDK_SHARE')[self._number])
self.execute_and_wait('mount -o ro,iocharset=utf8 /dev/sdb1 ' +
- S.getValue('OVS_DPDK_SHARE'))
- self.execute_and_wait('mkdir -p ' + S.getValue('GUEST_OVS_DPDK_DIR'))
- self.execute_and_wait('cp -r ' + os.path.join(S.getValue('OVS_DPDK_SHARE'), dirname) +
- ' ' + S.getValue('GUEST_OVS_DPDK_DIR'))
+ S.getValue('GUEST_OVS_DPDK_SHARE')[self._number])
+ self.execute_and_wait('mkdir -p ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number])
+ self.execute_and_wait('cp -r ' + os.path.join(S.getValue('GUEST_OVS_DPDK_SHARE')[self._number], dirname) +
+ ' ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number])
self.execute_and_wait('umount /dev/sdb1')
def _configure_disable_firewall(self):
@@ -344,7 +351,7 @@ class IVnfQemu(IVnf):
# Guest images _should_ have 1024 hugepages by default,
# but just in case:'''
- self.execute_and_wait('sysctl vm.nr_hugepages=1024')
+ self.execute_and_wait('sysctl vm.nr_hugepages={}'.format(S.getValue('GUEST_HUGEPAGES_NR')[self._number]))
# Mount hugepages
self.execute_and_wait('mkdir -p /dev/hugepages')
@@ -352,19 +359,19 @@ class IVnfQemu(IVnf):
'mount -t hugetlbfs hugetlbfs /dev/hugepages')
# build and configure system for dpdk
- self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR') +
+ self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number] +
'/DPDK')
self.execute_and_wait('export CC=gcc')
self.execute_and_wait('export RTE_SDK=' +
- S.getValue('GUEST_OVS_DPDK_DIR') + '/DPDK')
+ S.getValue('GUEST_OVS_DPDK_DIR')[self._number] + '/DPDK')
self.execute_and_wait('export RTE_TARGET=%s' % S.getValue('RTE_TARGET'))
# modify makefile if needed
self._modify_dpdk_makefile()
# disable network interfaces, so DPDK can take care of them
- self.execute_and_wait('ifdown ' + self._net1)
- self.execute_and_wait('ifdown ' + self._net2)
+ for nic in self._nics:
+ self.execute_and_wait('ifdown ' + nic['device'])
# build and insert igb_uio and rebind interfaces to it
self.execute_and_wait('make RTE_OUTPUT=$RTE_SDK/$RTE_TARGET -C '
@@ -373,35 +380,30 @@ class IVnfQemu(IVnf):
self.execute_and_wait('insmod %s/kmod/igb_uio.ko' %
S.getValue('RTE_TARGET'))
self.execute_and_wait('./tools/dpdk*bind.py --status')
- self.execute_and_wait(
- './tools/dpdk*bind.py -u' ' ' +
- S.getValue('GUEST_NET1_PCI_ADDRESS')[self._number] + ' ' +
- S.getValue('GUEST_NET2_PCI_ADDRESS')[self._number])
- self.execute_and_wait(
- './tools/dpdk*bind.py -b igb_uio' ' ' +
- S.getValue('GUEST_NET1_PCI_ADDRESS')[self._number] + ' ' +
- S.getValue('GUEST_NET2_PCI_ADDRESS')[self._number])
+ pci_list = ' '.join([nic['pci'] for nic in self._nics])
+ self.execute_and_wait('./tools/dpdk*bind.py -u ' + pci_list)
+ self.execute_and_wait('./tools/dpdk*bind.py -b igb_uio ' + pci_list)
self.execute_and_wait('./tools/dpdk*bind.py --status')
# build and run 'test-pmd'
- self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR') +
+ self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number] +
'/DPDK/app/test-pmd')
self.execute_and_wait('make clean')
self.execute_and_wait('make')
- if int(S.getValue('GUEST_NIC_QUEUES')):
+ if int(S.getValue('GUEST_NIC_QUEUES')[self._number]):
self.execute_and_wait(
'./testpmd {} -n4 --socket-mem 512 --'.format(
- S.getValue('GUEST_TESTPMD_CPU_MASK')) +
+ S.getValue('GUEST_TESTPMD_CPU_MASK')[self._number]) +
' --burst=64 -i --txqflags=0xf00 ' +
'--nb-cores={} --rxq={} --txq={} '.format(
- S.getValue('GUEST_TESTPMD_NB_CORES'),
- S.getValue('GUEST_TESTPMD_TXQ'),
- S.getValue('GUEST_TESTPMD_RXQ')) +
+ S.getValue('GUEST_TESTPMD_NB_CORES')[self._number],
+ S.getValue('GUEST_TESTPMD_TXQ')[self._number],
+ S.getValue('GUEST_TESTPMD_RXQ')[self._number]) +
'--disable-hw-vlan', 60, "Done")
else:
self.execute_and_wait(
'./testpmd {} -n 4 --socket-mem 512 --'.format(
- S.getValue('GUEST_TESTPMD_CPU_MASK')) +
+ S.getValue('GUEST_TESTPMD_CPU_MASK')[self._number]) +
' --burst=64 -i --txqflags=0xf00 ' +
'--disable-hw-vlan', 60, "Done")
self.execute('set fwd ' + self._testpmd_fwd_mode, 1)
@@ -412,44 +414,51 @@ class IVnfQemu(IVnf):
"""
Configure VM to perform L2 forwarding between NICs by l2fwd module
"""
- if int(S.getValue('GUEST_NIC_QUEUES')):
+ if int(S.getValue('GUEST_NIC_QUEUES')[self._number]):
self._set_multi_queue_nic()
self._configure_copy_sources('l2fwd')
self._configure_disable_firewall()
+ # configure all interfaces
+ for nic in self._nics:
+ self.execute('ip addr add ' +
+ nic['ip'] + ' dev ' + nic['device'])
+ self.execute('ip link set dev ' + nic['device'] + ' up')
+
# build and configure system for l2fwd
- self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR') +
+ self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number] +
'/l2fwd')
self.execute_and_wait('export CC=gcc')
self.execute_and_wait('make')
- self.execute_and_wait('insmod ' + S.getValue('GUEST_OVS_DPDK_DIR') +
- '/l2fwd' + '/l2fwd.ko net1=' + self._net1 +
- ' net2=' + self._net2)
+ if len(self._nics) == 2:
+ self.execute_and_wait('insmod ' + S.getValue('GUEST_OVS_DPDK_DIR')[self._number] +
+ '/l2fwd' + '/l2fwd.ko net1=' + self._nics[0]['device'] +
+ ' net2=' + self._nics[1]['device'])
+ else:
+ raise RuntimeError('l2fwd can forward only between 2 NICs, but {} NICs are '
+ 'configured inside GUEST'.format(len(self._nics)))
def _configure_linux_bridge(self):
"""
Configure VM to perform L2 forwarding between NICs by linux bridge
"""
- if int(S.getValue('GUEST_NIC_QUEUES')):
+ if int(S.getValue('GUEST_NIC_QUEUES')[self._number]):
self._set_multi_queue_nic()
self._configure_disable_firewall()
- self.execute('ip addr add ' +
- S.getValue('VANILLA_NIC1_IP_CIDR')[self._number] +
- ' dev ' + self._net1)
- self.execute('ip link set dev ' + self._net1 + ' up')
-
- self.execute('ip addr add ' +
- S.getValue('VANILLA_NIC2_IP_CIDR')[self._number] +
- ' dev ' + self._net2)
- self.execute('ip link set dev ' + self._net2 + ' up')
-
# configure linux bridge
self.execute('brctl addbr br0')
- self.execute('brctl addif br0 ' + self._net1 + ' ' + self._net2)
+
+ # add all NICs into the bridge
+ for nic in self._nics:
+ self.execute('ip addr add ' +
+ nic['ip'] + ' dev ' + nic['device'])
+ self.execute('ip link set dev ' + nic['device'] + ' up')
+ self.execute('brctl addif br0 ' + nic['device'])
+
self.execute('ip addr add ' +
- S.getValue('VANILLA_BRIDGE_IP')[self._number] +
+ S.getValue('GUEST_BRIDGE_IP')[self._number] +
' dev br0')
self.execute('ip link set dev br0 up')
@@ -475,17 +484,15 @@ class IVnfQemu(IVnf):
# Controls source route verification
# 0 means no source validation
self.execute('sysctl -w net.ipv4.conf.all.rp_filter=0')
- self.execute('sysctl -w net.ipv4.conf.' + self._net1 + '.rp_filter=0')
- self.execute('sysctl -w net.ipv4.conf.' + self._net2 + '.rp_filter=0')
+ for nic in self._nics:
+ self.execute('sysctl -w net.ipv4.conf.' + nic['device'] + '.rp_filter=0')
def _set_multi_queue_nic(self):
"""
Enable multi-queue in guest kernel with ethool.
:return: None
"""
- self.execute_and_wait('ethtool -L {} combined {}'.format(
- self._net1, S.getValue('GUEST_NIC_QUEUES')))
- self.execute_and_wait('ethtool -l {}'.format(self._net1))
- self.execute_and_wait('ethtool -L {} combined {}'.format(
- self._net2, S.getValue('GUEST_NIC_QUEUES')))
- self.execute_and_wait('ethtool -l {}'.format(self._net2))
+ for nic in self._nics:
+ self.execute_and_wait('ethtool -L {} combined {}'.format(
+ nic['device'], S.getValue('GUEST_NIC_QUEUES')[self._number]))
+ self.execute_and_wait('ethtool -l {}'.format(nic['device']))
diff --git a/vnfs/qemu/qemu_dpdk_vhost_user.py b/vnfs/qemu/qemu_dpdk_vhost_user.py
index 49131423..fc46aba1 100644
--- a/vnfs/qemu/qemu_dpdk_vhost_user.py
+++ b/vnfs/qemu/qemu_dpdk_vhost_user.py
@@ -31,45 +31,36 @@ class QemuDpdkVhostUser(IVnfQemu):
super(QemuDpdkVhostUser, self).__init__()
self._logger = logging.getLogger(__name__)
- # calculate indexes of guest devices (e.g. charx, dpdkvhostuserx)
- i = self._number * 2
- if1 = str(i)
- if2 = str(i + 1)
- net1 = 'net' + str(i + 1)
- net2 = 'net' + str(i + 2)
-
# multi-queue values
- if int(S.getValue('GUEST_NIC_QUEUES')):
- queue_str = ',queues={}'.format(S.getValue('GUEST_NIC_QUEUES'))
+ if int(S.getValue('GUEST_NIC_QUEUES')[self._number]):
+ queue_str = ',queues={}'.format(S.getValue('GUEST_NIC_QUEUES')[self._number])
mq_vector_str = ',mq=on,vectors={}'.format(
- int(S.getValue('GUEST_NIC_QUEUES')) * 2 + 2)
+ int(S.getValue('GUEST_NIC_QUEUES')[self._number]) * 2 + 2)
else:
queue_str, mq_vector_str = '', ''
- self._cmd += ['-chardev',
- 'socket,id=char' + if1 +
- ',path=' + S.getValue('OVS_VAR_DIR') +
- 'dpdkvhostuser' + if1,
- '-chardev',
- 'socket,id=char' + if2 +
- ',path=' + S.getValue('OVS_VAR_DIR') +
- 'dpdkvhostuser' + if2,
- '-netdev',
- 'type=vhost-user,id=' + net1 +
- ',chardev=char' + if1 + ',vhostforce' + queue_str,
- '-device',
- 'virtio-net-pci,mac=' +
- S.getValue('GUEST_NET1_MAC')[self._number] +
- ',netdev=' + net1 + ',csum=off,gso=off,' +
- 'guest_tso4=off,guest_tso6=off,guest_ecn=off' +
- mq_vector_str,
- '-netdev',
- 'type=vhost-user,id=' + net2 +
- ',chardev=char' + if2 + ',vhostforce' + queue_str,
- '-device',
- 'virtio-net-pci,mac=' +
- S.getValue('GUEST_NET2_MAC')[self._number] +
- ',netdev=' + net2 + ',csum=off,gso=off,' +
- 'guest_tso4=off,guest_tso6=off,guest_ecn=off' +
- mq_vector_str,
- ]
+ # calculate index of first interface, i.e. check how many
+ # interfaces has been created for previous VMs, where 1st NIC
+ # of 1st VM has index 0
+ start_index = sum(S.getValue('GUEST_NICS_NR')[:self._number])
+
+ # setup requested number of interfaces
+ for nic in range(len(self._nics)):
+ index = start_index + nic
+ ifi = str(index)
+ net = 'net' + str(index + 1)
+
+ self._cmd += ['-chardev',
+ 'socket,id=char' + ifi +
+ ',path=' + S.getValue('OVS_VAR_DIR') +
+ 'dpdkvhostuser' + ifi,
+ '-netdev',
+ 'type=vhost-user,id=' + net +
+ ',chardev=char' + ifi + ',vhostforce' + queue_str,
+ '-device',
+ 'virtio-net-pci,mac=' +
+ self._nics[nic]['mac'] +
+ ',netdev=' + net + ',csum=off,gso=off,' +
+ 'guest_tso4=off,guest_tso6=off,guest_ecn=off' +
+ mq_vector_str,
+ ]
diff --git a/vnfs/qemu/qemu_virtio_net.py b/vnfs/qemu/qemu_virtio_net.py
index afb519c3..efeea490 100644
--- a/vnfs/qemu/qemu_virtio_net.py
+++ b/vnfs/qemu/qemu_virtio_net.py
@@ -36,39 +36,33 @@ class QemuVirtioNet(IVnfQemu):
tasks.run_task(['sudo', 'modprobe', 'vhost_net'], self._logger,
'Loading vhost_net module...', True)
- # calculate indexes of guest devices (e.g. charx, dpdkvhostuserx)
- i = self._number * 2
- if1 = str(i)
- if2 = str(i + 1)
+ # calculate index of first interface, i.e. check how many
+ # interfaces has been created for previous VMs, where 1st NIC
+ # of 1st VM has index 0
+ start_index = sum(S.getValue('GUEST_NICS_NR')[:self._number])
# multi-queue values
- if int(S.getValue('GUEST_NIC_QUEUES')):
- queue_str = ',queues={}'.format(S.getValue('GUEST_NIC_QUEUES'))
+ if int(S.getValue('GUEST_NIC_QUEUES')[self._number]):
+ queue_str = ',queues={}'.format(
+ S.getValue('GUEST_NIC_QUEUES')[self._number])
mq_vector_str = ',mq=on,vectors={}'.format(
- int(S.getValue('GUEST_NIC_QUEUES')) * 2 + 2)
+ int(S.getValue('GUEST_NIC_QUEUES')[self._number]) * 2 + 2)
else:
queue_str, mq_vector_str = '', ''
- self._cmd += ['-netdev',
- 'tap,id=' + self._net1 + queue_str +
- ',script=no,downscript=no,' +
- 'ifname=tap' + if1 + ',vhost=on',
- '-device',
- 'virtio-net-pci,mac=' +
- S.getValue('GUEST_NET1_MAC')[self._number] +
- ',netdev=' + self._net1 +
- ',csum=off,gso=off,' +
- 'guest_tso4=off,guest_tso6=off,guest_ecn=off' +
- mq_vector_str,
- '-netdev',
- 'tap,id=' + self._net2 + queue_str +
- ',script=no,downscript=no,' +
- 'ifname=tap' + if2 + ',vhost=on',
- '-device',
- 'virtio-net-pci,mac=' +
- S.getValue('GUEST_NET2_MAC')[self._number] +
- ',netdev=' + self._net2 +
- ',csum=off,gso=off,' +
- 'guest_tso4=off,guest_tso6=off,guest_ecn=off' +
- mq_vector_str,
- ]
+ # setup requested number of interfaces
+ for nic in range(len(self._nics)):
+ index = start_index + nic
+ ifi = str(index)
+ self._cmd += ['-netdev', 'type=tap,id=' +
+ self._nics[nic]['device'] + queue_str +
+ ',script=no,downscript=no,' +
+ 'ifname=tap' + ifi + ',vhost=on',
+ '-device',
+ 'virtio-net-pci,mac=' +
+ self._nics[nic]['mac'] + ',netdev=' +
+ self._nics[nic]['device'] +
+ ',csum=off,gso=off,' +
+ 'guest_tso4=off,guest_tso6=off,guest_ecn=off' +
+ mq_vector_str,
+ ]