diff options
Diffstat (limited to 'vnfs/qemu/qemu.py')
| -rw-r--r-- | vnfs/qemu/qemu.py | 166 |
1 files changed, 162 insertions, 4 deletions
diff --git a/vnfs/qemu/qemu.py b/vnfs/qemu/qemu.py index 2e2c63df..4b0bf0b2 100644 --- a/vnfs/qemu/qemu.py +++ b/vnfs/qemu/qemu.py @@ -22,6 +22,7 @@ import re import subprocess from conf import settings as S +from conf import get_test_param from vnfs.vnf.vnf import IVnf class IVnfQemu(IVnf): @@ -48,8 +49,10 @@ class IVnfQemu(IVnf): self._logfile = os.path.join( S.getValue('LOG_DIR'), S.getValue('LOG_FILE_QEMU')) + str(self._number) - self._timeout = 120 + self._timeout = S.getValue('GUEST_TIMEOUT')[self._number] self._monitor = '%s/vm%dmonitor' % ('/tmp', self._number) + self._net1 = S.getValue('VANILLA_NIC1_NAME')[self._number] + self._net2 = S.getValue('VANILLA_NIC2_NAME')[self._number] name = 'Client%d' % self._number vnc = ':%d' % self._number @@ -59,7 +62,7 @@ class IVnfQemu(IVnf): '-m', S.getValue('GUEST_MEMORY')[self._number], '-smp', str(S.getValue('GUEST_SMP')[self._number]), '-cpu', 'host', - '-drive', 'if=scsi,file=' + + '-drive', 'if=ide,file=' + S.getValue('GUEST_IMAGE')[self._number], '-boot', 'c', '--enable-kvm', '-monitor', 'unix:%s,server,nowait' % self._monitor, @@ -70,6 +73,9 @@ class IVnfQemu(IVnf): '-numa', 'node,memdev=mem -mem-prealloc', '-nographic', '-vnc', str(vnc), '-name', name, '-snapshot', '-net none', '-no-reboot', + '-drive', + 'if=ide,file=fat:rw:%s,snapshot=off' % + S.getValue('GUEST_SHARE_DIR')[self._number], ] self._configure_logging() @@ -99,7 +105,6 @@ class IVnfQemu(IVnf): self._affinitize() if self._timeout: - self._login() self._config_guest_loopback() # helper functions @@ -184,7 +189,21 @@ class IVnfQemu(IVnf): """ Configure VM to run VNF (e.g. port forwarding application) """ - pass + # set guest loopback application based on VNF configuration + # cli option take precedence to config file values + guest_loopback = get_test_param('guest_loopback', S.getValue('GUEST_LOOPBACK')[self._number]) + if guest_loopback == 'testpmd': + self._login() + self._configure_testpmd() + elif guest_loopback == 'l2fwd': + self._login() + self._configure_l2fwd() + elif guest_loopback == 'linux_bridge': + self._login() + self._configure_linux_bridge() + elif guest_loopback != 'buildin': + self._logger.error('Unsupported guest loopback method "%s" was specified. Option' + ' "buildin" will be used as a fallback.', guest_loopback) def wait(self, prompt=S.getValue('GUEST_PROMPT'), timeout=30): super(IVnfQemu, self).wait(prompt=prompt, timeout=timeout) @@ -193,3 +212,142 @@ class IVnfQemu(IVnf): prompt=S.getValue('GUEST_PROMPT')): super(IVnfQemu, self).execute_and_wait(cmd, timeout=timeout, prompt=prompt) + + def _modify_dpdk_makefile(self): + """ + Modifies DPDK makefile in Guest before compilation + """ + pass + + def _configure_copy_sources(self, dirname): + """ + Mount shared directory and copy DPDK and l2fwd sources + """ + # mount shared directory + self.execute_and_wait('umount ' + S.getValue('OVS_DPDK_SHARE')) + 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('mount -o 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 -ra ' + os.path.join(S.getValue('OVS_DPDK_SHARE'), dirname) + + ' ' + S.getValue('GUEST_OVS_DPDK_DIR')) + + def _configure_disable_firewall(self): + """ + Disable firewall in VM + """ + # Disable services (F16) + self.execute_and_wait('systemctl status iptables.service') + self.execute_and_wait('systemctl stop iptables.service') + + def _configure_testpmd(self): + """ + Configure VM to perform L2 forwarding between NICs by DPDK's testpmd + """ + self._configure_copy_sources('DPDK') + self._configure_disable_firewall() + + # Guest images _should_ have 1024 hugepages by default, + # but just in case:''' + self.execute_and_wait('sysctl vm.nr_hugepages=1024') + + # Mount hugepages + self.execute_and_wait('mkdir -p /dev/hugepages') + self.execute_and_wait( + 'mount -t hugetlbfs hugetlbfs /dev/hugepages') + + # build and configure system for dpdk + self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR') + + '/DPDK') + self.execute_and_wait('export CC=gcc') + self.execute_and_wait('export RTE_SDK=' + + S.getValue('GUEST_OVS_DPDK_DIR') + '/DPDK') + self.execute_and_wait('export RTE_TARGET=%s' % S.getValue('RTE_TARGET')) + + # modify makefile if needed + self._modify_dpdk_makefile() + + self.execute_and_wait('make RTE_OUTPUT=$RTE_SDK/$RTE_TARGET -C ' + '$RTE_SDK/lib/librte_eal/linuxapp/igb_uio') + self.execute_and_wait('modprobe uio') + self.execute_and_wait('insmod %s/kmod/igb_uio.ko' % + S.getValue('RTE_TARGET')) + self.execute_and_wait('./tools/dpdk_nic_bind.py --status') + self.execute_and_wait( + './tools/dpdk_nic_bind.py -b igb_uio' ' ' + + S.getValue('GUEST_NET1_PCI_ADDRESS')[self._number] + ' ' + + S.getValue('GUEST_NET2_PCI_ADDRESS')[self._number]) + + # build and run 'test-pmd' + self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR') + + '/DPDK/app/test-pmd') + self.execute_and_wait('make clean') + self.execute_and_wait('make') + self.execute_and_wait('./testpmd -c 0x3 -n 4 --socket-mem 512 --' + ' --burst=64 -i --txqflags=0xf00 ' + + '--disable-hw-vlan', 60, "Done") + self.execute('set fwd mac_retry', 1) + self.execute_and_wait('start', 20, + 'TX RS bit threshold=0 - TXQ flags=0xf00') + + def _configure_l2fwd(self): + """ + Configure VM to perform L2 forwarding between NICs by l2fwd module + """ + self._configure_copy_sources('l2fwd') + self._configure_disable_firewall() + + # build and configure system for l2fwd + self.execute_and_wait('cd ' + S.getValue('GUEST_OVS_DPDK_DIR') + + '/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) + + def _configure_linux_bridge(self): + """ + Configure VM to perform L2 forwarding between NICs by linux bridge + """ + self._configure_disable_firewall() + nic1_name = get_test_param('vanilla_nic1_name', self._net1) + self.execute('ifconfig ' + nic1_name + ' ' + + S.getValue('VANILLA_NIC1_IP_CIDR')[self._number]) + + nic2_name = get_test_param('vanilla_nic2_name', self._net2) + self.execute('ifconfig ' + nic2_name + ' ' + + S.getValue('VANILLA_NIC2_IP_CIDR')[self._number]) + + # configure linux bridge + self.execute('brctl addbr br0') + self.execute('brctl addif br0 ' + self._net1 + ' ' + self._net2) + self.execute('ifconfig br0 ' + + S.getValue('VANILLA_BRIDGE_IP')[self._number]) + + # Add the arp entries for the IXIA ports and the bridge you are using. + # Use command line values if provided. + trafficgen_mac = get_test_param('vanilla_tgen_port1_mac', + S.getValue('VANILLA_TGEN_PORT1_MAC')) + trafficgen_ip = get_test_param('vanilla_tgen_port1_ip', + S.getValue('VANILLA_TGEN_PORT1_IP')) + + self.execute('arp -s ' + trafficgen_ip + ' ' + trafficgen_mac) + + trafficgen_mac = get_test_param('vanilla_tgen_port2_mac', + S.getValue('VANILLA_TGEN_PORT2_MAC')) + trafficgen_ip = get_test_param('vanilla_tgen_port2_ip', + S.getValue('VANILLA_TGEN_PORT2_IP')) + + self.execute('arp -s ' + trafficgen_ip + ' ' + trafficgen_mac) + + # Enable forwarding + self.execute('sysctl -w net.ipv4.ip_forward=1') + + # 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') |