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-rw-r--r--vnfs/qemu/qemu.py14
-rw-r--r--vnfs/qemu/qemu_dpdk.py13
-rw-r--r--vnfs/qemu/qemu_virtio_net.py115
3 files changed, 123 insertions, 19 deletions
diff --git a/vnfs/qemu/qemu.py b/vnfs/qemu/qemu.py
index 338ca771..2e2c63df 100644
--- a/vnfs/qemu/qemu.py
+++ b/vnfs/qemu/qemu.py
@@ -41,13 +41,7 @@ class IVnfQemu(IVnf):
def __init__(self):
"""
- :param timeout: Time to wait for login prompt. If set to
- 0 do not wait.
- :param number: Number of QEMU instance, used when multiple QEMU
- instances are started at once.
- :param args: Arguments to pass to QEMU.
-
- :returns: None
+ Initialisation function.
"""
super(IVnfQemu, self).__init__()
self._logger = logging.getLogger(__name__)
@@ -67,9 +61,6 @@ class IVnfQemu(IVnf):
'-cpu', 'host',
'-drive', 'if=scsi,file=' +
S.getValue('GUEST_IMAGE')[self._number],
- '-drive',
- 'if=scsi,file=fat:rw:%s,snapshot=off' %
- S.getValue('GUEST_SHARE_DIR')[self._number],
'-boot', 'c', '--enable-kvm',
'-monitor', 'unix:%s,server,nowait' % self._monitor,
'-object',
@@ -104,7 +95,8 @@ class IVnfQemu(IVnf):
Start QEMU instance, login and prepare for commands.
"""
super(IVnfQemu, self).start()
- self._affinitize()
+ if S.getValue('VNF_AFFINITIZATION_ON'):
+ self._affinitize()
if self._timeout:
self._login()
diff --git a/vnfs/qemu/qemu_dpdk.py b/vnfs/qemu/qemu_dpdk.py
index 0b8f90a0..02d720f3 100644
--- a/vnfs/qemu/qemu_dpdk.py
+++ b/vnfs/qemu/qemu_dpdk.py
@@ -25,16 +25,13 @@ class IVnfQemuDpdk(IVnfQemu):
def __init__(self):
"""
- :param timeout: Time to wait for login prompt. If set to
- 0 do not wait.
- :param number: Number of QEMU instance, used when multiple QEMU
- instances are started at once.
- :param args: Arguments to pass to QEMU.
-
- :returns: None
+ Initialisation function.
"""
super(IVnfQemuDpdk, self).__init__()
- self._cmd += []
+ self._cmd += ['-drive',
+ 'if=scsi,file=fat:rw:%s,snapshot=off' %
+ S.getValue('GUEST_SHARE_DIR')[self._number],
+ ]
def _modify_dpdk_makefile(self):
"""
diff --git a/vnfs/qemu/qemu_virtio_net.py b/vnfs/qemu/qemu_virtio_net.py
new file mode 100644
index 00000000..7de5ea1c
--- /dev/null
+++ b/vnfs/qemu/qemu_virtio_net.py
@@ -0,0 +1,115 @@
+# Copyright 2016 Intel Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Automation of QEMU hypervisor for launching virtio-net enabled guests.
+"""
+
+import logging
+from vnfs.qemu.qemu import IVnfQemu
+from conf import settings as S
+from conf import get_test_param
+from tools import tasks
+
+class QemuVirtioNet(IVnfQemu):
+ """
+ Control an instance of QEMU with virtio-net guest communication.
+ """
+
+ def __init__(self):
+ """
+ Initialisation function.
+ """
+ super(QemuVirtioNet, self).__init__()
+ self._logger = logging.getLogger(__name__)
+
+ # insert vanilla ovs specific modules
+ 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)
+ self._net1 = S.getValue('VANILLA_NIC1_NAME')[self._number]
+ self._net2 = S.getValue('VANILLA_NIC2_NAME')[self._number]
+
+ self._cmd += ['-netdev',
+ 'type=tap,id=' + self._net1 +
+ ',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',
+ 'type=tap,id=' + self._net2 +
+ ',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',
+ ]
+
+ # helper functions
+
+ def _config_guest_loopback(self):
+ """
+ Configure VM to perform forwarding between NICs
+ """
+
+ # Disable services (F16)
+ self.execute_and_wait('systemctl stop iptables.service')
+ self.execute_and_wait('systemctl stop irqbalance.service')
+
+ 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')