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-rw-r--r--vnfs/qemu/qemu.py96
1 files changed, 44 insertions, 52 deletions
diff --git a/vnfs/qemu/qemu.py b/vnfs/qemu/qemu.py
index 30f073ee..8e3d44de 100644
--- a/vnfs/qemu/qemu.py
+++ b/vnfs/qemu/qemu.py
@@ -146,13 +146,14 @@ class IVnfQemu(IVnf):
"""
if self.is_running():
try:
- # exit testpmd if needed
- if self._guest_loopback == 'testpmd':
- self.execute_and_wait('stop', 120, "Done")
- self.execute_and_wait('quit', 120, "[bB]ye")
+ if self._login_active:
+ # exit testpmd if needed
+ if self._guest_loopback == 'testpmd':
+ self.execute_and_wait('stop', 120, "Done")
+ self.execute_and_wait('quit', 120, "[bB]ye")
- # turn off VM
- self.execute_and_wait('poweroff', 120, "Power down")
+ # turn off VM
+ self.execute_and_wait('poweroff', 120, "Power down")
except pexpect.TIMEOUT:
self.kill()
@@ -169,7 +170,7 @@ class IVnfQemu(IVnf):
# helper functions
- def _login(self, timeout=120):
+ def login(self, timeout=120):
"""
Login to QEMU instance.
@@ -178,8 +179,11 @@ class IVnfQemu(IVnf):
:param timeout: Timeout to wait for login to complete.
- :returns: None
+ :returns: True if login is active
"""
+ if self._login_active:
+ return self._login_active
+
# if no timeout was set, we likely started QEMU without waiting for it
# to boot. This being the case, we best check that it has finished
# first.
@@ -191,21 +195,8 @@ class IVnfQemu(IVnf):
self._child.sendline(S.getValue('GUEST_PASSWORD')[self._number])
self._expect_process(S.getValue('GUEST_PROMPT')[self._number], timeout=5)
-
- def send_and_pass(self, cmd, timeout=30):
- """
- Send ``cmd`` and wait ``timeout`` seconds for it to pass.
-
- :param cmd: Command to send to guest.
- :param timeout: Time to wait for prompt before checking return code.
-
- :returns: None
- """
- self.execute(cmd)
- 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')[self._number], timeout=timeout)
+ self._login_active = True
+ return self._login_active
def _affinitize(self):
"""
@@ -277,29 +268,31 @@ class IVnfQemu(IVnf):
"""
Configure VM to run VNF, e.g. port forwarding application based on the configuration
"""
+ if self._guest_loopback == 'buildin':
+ return
+
+ self.login()
+
if self._guest_loopback == 'testpmd':
- self._login()
self._configure_testpmd()
elif self._guest_loopback == 'l2fwd':
- self._login()
self._configure_l2fwd()
elif self._guest_loopback == 'linux_bridge':
- self._login()
self._configure_linux_bridge()
- elif self._guest_loopback != 'buildin':
- self._logger.error('Unsupported guest loopback method "%s" was specified. Option'
- ' "buildin" will be used as a fallback.', self._guest_loopback)
+ elif self._guest_loopback != 'clean':
+ raise RuntimeError('Unsupported guest loopback method "%s" was specified.',
+ self._guest_loopback)
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)
+ return super(IVnfQemu, self).wait(prompt=prompt, timeout=timeout)
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)
+ return super(IVnfQemu, self).execute_and_wait(cmd, timeout=timeout,
+ prompt=prompt)
def _modify_dpdk_makefile(self):
"""
@@ -393,7 +386,7 @@ class IVnfQemu(IVnf):
'VSWITCH_JUMBO_FRAMES_SIZE'))
self.execute_and_wait('./testpmd {}'.format(testpmd_params), 60, "Done")
- self.execute('set fwd ' + self._testpmd_fwd_mode, 1)
+ self.execute_and_wait('set fwd ' + self._testpmd_fwd_mode, 20, 'testpmd>')
self.execute_and_wait('start', 20, 'testpmd>')
def _configure_l2fwd(self):
@@ -407,12 +400,12 @@ class IVnfQemu(IVnf):
# configure all interfaces
for nic in self._nics:
- self.execute('ip addr add ' +
- nic['ip'] + ' dev ' + nic['device'])
+ self.execute_and_wait('ip addr add ' +
+ nic['ip'] + ' dev ' + nic['device'])
if S.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
- self.execute('ifconfig {} mtu {}'.format(
+ self.execute_and_wait('ifconfig {} mtu {}'.format(
nic['device'], S.getValue('VSWITCH_JUMBO_FRAMES_SIZE')))
- self.execute('ip link set dev ' + nic['device'] + ' up')
+ self.execute_and_wait('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._number] +
@@ -437,43 +430,42 @@ class IVnfQemu(IVnf):
self._configure_disable_firewall()
# configure linux bridge
- self.execute('brctl addbr br0')
+ self.execute_and_wait('brctl addbr br0')
# add all NICs into the bridge
for nic in self._nics:
- self.execute('ip addr add ' +
- nic['ip'] + ' dev ' + nic['device'])
+ self.execute_and_wait('ip addr add ' + nic['ip'] + ' dev ' + nic['device'])
if S.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
- self.execute('ifconfig {} mtu {}'.format(
+ self.execute_and_wait('ifconfig {} mtu {}'.format(
nic['device'], S.getValue('VSWITCH_JUMBO_FRAMES_SIZE')))
- self.execute('ip link set dev ' + nic['device'] + ' up')
- self.execute('brctl addif br0 ' + nic['device'])
+ self.execute_and_wait('ip link set dev ' + nic['device'] + ' up')
+ self.execute_and_wait('brctl addif br0 ' + nic['device'])
- self.execute('ip addr add ' +
- S.getValue('GUEST_BRIDGE_IP')[self._number] +
- ' dev br0')
- self.execute('ip link set dev br0 up')
+ self.execute_and_wait('ip addr add {} dev br0'.format(
+ S.getValue('GUEST_BRIDGE_IP')[self._number]))
+ self.execute_and_wait('ip link set dev br0 up')
# Add the arp entries for the IXIA ports and the bridge you are using.
# Use command line values if provided.
trafficgen_mac = S.getValue('VANILLA_TGEN_PORT1_MAC')
trafficgen_ip = S.getValue('VANILLA_TGEN_PORT1_IP')
- self.execute('arp -s ' + trafficgen_ip + ' ' + trafficgen_mac)
+ self.execute_and_wait('arp -s ' + trafficgen_ip + ' ' + trafficgen_mac)
trafficgen_mac = S.getValue('VANILLA_TGEN_PORT2_MAC')
trafficgen_ip = S.getValue('VANILLA_TGEN_PORT2_IP')
- self.execute('arp -s ' + trafficgen_ip + ' ' + trafficgen_mac)
+ self.execute_and_wait('arp -s ' + trafficgen_ip + ' ' + trafficgen_mac)
# Enable forwarding
- self.execute('sysctl -w net.ipv4.ip_forward=1')
+ self.execute_and_wait('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_and_wait('sysctl -w net.ipv4.conf.all.rp_filter=0')
for nic in self._nics:
- self.execute('sysctl -w net.ipv4.conf.' + nic['device'] + '.rp_filter=0')
+ self.execute_and_wait('sysctl -w net.ipv4.conf.' + nic['device'] +
+ '.rp_filter=0')
def _bind_dpdk_driver(self, driver, pci_slots):
"""