diff options
Diffstat (limited to 'vnfs/qemu/qemu.py')
| -rw-r--r-- | vnfs/qemu/qemu.py | 157 |
1 files changed, 82 insertions, 75 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'])) |