diff options
Diffstat (limited to 'resources/libraries/python/QemuUtils.py')
| -rw-r--r-- | resources/libraries/python/QemuUtils.py | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/resources/libraries/python/QemuUtils.py b/resources/libraries/python/QemuUtils.py index 677c28ecb3..5821455cc3 100644 --- a/resources/libraries/python/QemuUtils.py +++ b/resources/libraries/python/QemuUtils.py @@ -1,4 +1,4 @@ -# Copyright (c) 2016 Cisco and/or its affiliates. +# Copyright (c) 2018 Cisco and/or its affiliates. # 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: @@ -166,7 +166,7 @@ class QemuUtils(object): """Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU processes. - :raises RuntimeError: Set scheduler policy failed. + :raises RuntimeError: Set scheduler policy failed. """ qemu_cpus = self._qemu_qmp_exec('query-cpus')['return'] @@ -192,16 +192,19 @@ class QemuUtils(object): arch = Topology.get_node_arch(node) self._qemu_bin = 'qemu-system-{arch}'.format(arch=arch) - def qemu_add_vhost_user_if(self, socket, server=True, mac=None): + def qemu_add_vhost_user_if(self, socket, server=True, mac=None, + jumbo_frames=False): """Add Vhost-user interface. :param socket: Path of the unix socket. :param server: If True the socket shall be a listening socket. :param mac: Vhost-user interface MAC address (optional, otherwise is used auto-generated MAC 52:54:00:00:xx:yy). + :param jumbo_frames: Set True if jumbo frames are used in the test. :type socket: str :type server: bool :type mac: str + :type jumbo_frames: bool """ self._vhost_id += 1 # Create unix socket character device. @@ -221,7 +224,11 @@ class QemuUtils(object): mac = '52:54:00:00:{0:02x}:{1:02x}'.\ format(self._qemu_id, self._vhost_id) extend_options = 'mq=on,csum=off,gso=off,guest_tso4=off,'\ - 'guest_tso6=off,guest_ecn=off,mrg_rxbuf=off' + 'guest_tso6=off,guest_ecn=off' + if jumbo_frames: + extend_options += ",mrg_rxbuf=on" + else: + extend_options += ",mrg_rxbuf=off" # Create Virtio network device. device = ' -device virtio-net-pci,netdev=vhost{0},mac={1},{2}'.format( self._vhost_id, mac, extend_options) @@ -240,7 +247,7 @@ class QemuUtils(object): :param cmd: QMP command to execute. :type cmd: str - :return: Command output in python representation of JSON format. The + :returns: Command output in python representation of JSON format. The { "return": {} } response is QMP's success response. An error response will contain the "error" keyword instead of "return". """ @@ -442,7 +449,7 @@ class QemuUtils(object): :returns: Default size of free huge pages in system. :rtype: int - :raises: RuntimeError if reading failed for three times. + :raises RuntimeError: If reading failed for three times. """ # TODO: remove to dedicated library cmd_huge_size = "grep Hugepagesize /proc/meminfo | awk '{ print $2 }'" @@ -466,7 +473,7 @@ class QemuUtils(object): :type huge_size: int :returns: Number of free huge pages in system. :rtype: int - :raises: RuntimeError if reading failed for three times. + :raises RuntimeError: If reading failed for three times. """ # TODO: add numa aware option # TODO: remove to dedicated library @@ -492,7 +499,7 @@ class QemuUtils(object): :type huge_size: int :returns: Total number of huge pages in system. :rtype: int - :raises: RuntimeError if reading failed for three times. + :raises RuntimeError: If reading failed for three times. """ # TODO: add numa aware option # TODO: remove to dedicated library @@ -514,10 +521,11 @@ class QemuUtils(object): def qemu_start(self): """Start QEMU and wait until VM boot. - :return: VM node info. - :rtype: dict .. note:: First set at least node to run QEMU on. .. warning:: Starts only one VM on the node. + + :returns: VM node info. + :rtype: dict """ # Qemu binary path bin_path = '{0}{1}'.format(self._qemu_path, self._qemu_bin) @@ -552,8 +560,8 @@ class QemuUtils(object): pid = '-pidfile {}'.format(self._pid_file) # Run QEMU - cmd = '{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10}'.format(bin_path, - self._qemu_opt.get('smp'), mem, ssh_fwd, + cmd = '{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10}'.format( + bin_path, self._qemu_opt.get('smp'), mem, ssh_fwd, self._qemu_opt.get('options'), drive, qmp, serial, qga, graphic, pid) try: @@ -652,7 +660,7 @@ class QemuUtils(object): - watchdog: watchdog action has been triggered - guest-panicked: panicked as a result of guest OS panic - :return: VM status. + :returns: VM status. :rtype: str """ out = self._qemu_qmp_exec('query-status') @@ -675,7 +683,7 @@ class QemuUtils(object): :type node: dict :type force_install: bool :type apply_patch: bool - :raises: RuntimeError if building QEMU failed. + :raises RuntimeError: If building QEMU failed. """ ssh = SSH() ssh.connect(node) |