diff options
Diffstat (limited to 'vnfs/qemu')
| -rw-r--r-- | vnfs/qemu/qemu.py | 48 | ||||
| -rw-r--r-- | vnfs/qemu/qemu_virtio_net.py | 26 |
2 files changed, 67 insertions, 7 deletions
diff --git a/vnfs/qemu/qemu.py b/vnfs/qemu/qemu.py index e91eaa29..dd9ad818 100644 --- a/vnfs/qemu/qemu.py +++ b/vnfs/qemu/qemu.py @@ -129,6 +129,10 @@ class IVnfQemu(IVnf): if S.getValue('VNF_AFFINITIZATION_ON'): self._affinitize() + if S.getValue('VSWITCH_VHOST_NET_AFFINITIZATION') and S.getValue( + 'VNF') == 'QemuVirtioNet': + self._affinitize_vhost_net() + if self._timeout: self._config_guest_loopback() @@ -236,6 +240,34 @@ class IVnfQemu(IVnf): self._logger.error('Failed to affinitize guest core #%d. Could' ' not parse tid.', cpu) + def _affinitize_vhost_net(self): + """ + Affinitize the vhost net threads for Vanilla OVS and guest nic queues. + + :return: None + """ + self._logger.info('Affinitizing VHOST Net threads.') + args1 = ['ps', 'ax'] + process1 = subprocess.Popen(args1, stdout=subprocess.PIPE, + shell=False) + out = process1.communicate()[0] + processes = list() + for line in out.decode(locale.getdefaultlocale()[1]).split('\n'): + if re.search('\[vhost-(\d+)', line): + processes.append(re.match('\s*(\d+)', line).group(1)) + self._logger.info('Found %s vhost net threads...', len(processes)) + + cpumap = S.getValue('VSWITCH_VHOST_CPU_MAP') + mapcount = 0 + for proc in processes: + self._affinitize_pid(cpumap[mapcount], proc) + mapcount += 1 + if mapcount + 1 > len(cpumap): + # Not enough cpus were given in the mapping to cover all the + # threads on a 1 to 1 ratio with cpus so reset the list counter + # to 0. + mapcount = 0 + def _config_guest_loopback(self): """ Configure VM to run VNF, e.g. port forwarding application based on the configuration @@ -380,6 +412,8 @@ class IVnfQemu(IVnf): """ Configure VM to perform L2 forwarding between NICs by l2fwd module """ + if int(S.getValue('GUEST_NIC_QUEUES')): + self._set_multi_queue_nic() self._configure_copy_sources('l2fwd') self._configure_disable_firewall() @@ -397,6 +431,8 @@ class IVnfQemu(IVnf): """ Configure VM to perform L2 forwarding between NICs by linux bridge """ + if int(S.getValue('GUEST_NIC_QUEUES')): + self._set_multi_queue_nic() self._configure_disable_firewall() self.execute('ip addr add ' + @@ -441,3 +477,15 @@ class IVnfQemu(IVnf): 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') + + 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)) diff --git a/vnfs/qemu/qemu_virtio_net.py b/vnfs/qemu/qemu_virtio_net.py index e5e895f2..afb519c3 100644 --- a/vnfs/qemu/qemu_virtio_net.py +++ b/vnfs/qemu/qemu_virtio_net.py @@ -41,22 +41,34 @@ class QemuVirtioNet(IVnfQemu): if1 = str(i) if2 = str(i + 1) + # multi-queue values + if int(S.getValue('GUEST_NIC_QUEUES')): + queue_str = ',queues={}'.format(S.getValue('GUEST_NIC_QUEUES')) + mq_vector_str = ',mq=on,vectors={}'.format( + int(S.getValue('GUEST_NIC_QUEUES')) * 2 + 2) + else: + queue_str, mq_vector_str = '', '' + self._cmd += ['-netdev', - 'type=tap,id=' + self._net1 + + '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', + ',netdev=' + self._net1 + + ',csum=off,gso=off,' + + 'guest_tso4=off,guest_tso6=off,guest_ecn=off' + + mq_vector_str, '-netdev', - 'type=tap,id=' + self._net2 + + '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', - ] + ',netdev=' + self._net2 + + ',csum=off,gso=off,' + + 'guest_tso4=off,guest_tso6=off,guest_ecn=off' + + mq_vector_str, + ] |