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-rw-r--r--vnfs/qemu/qemu_dpdk.py115
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diff --git a/vnfs/qemu/qemu_dpdk.py b/vnfs/qemu/qemu_dpdk.py
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+# Copyright 2015 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 vhost-cuse enabled guests.
+"""
+
+from vnfs.qemu.qemu import IVnfQemu
+from conf import settings as S
+
+class IVnfQemuDpdk(IVnfQemu):
+ """
+ An abstract class for controling an instance of QEMU with DPDK vHost support
+ """
+
+ 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
+ """
+ super(IVnfQemuDpdk, self).__init__()
+ self._cmd += []
+
+ def _modify_dpdk_makefile(self):
+ """
+ Modifies DPDK makefile in Guest before compilation
+ """
+ pass
+
+ def _config_guest_loopback(self):
+ """
+ Configure VM to run testpmd
+
+ Configure performs the following:
+ * Mount hugepages
+ * mount shared directory for copying DPDK
+ * Disable firewall
+ * Compile DPDK
+ * DPDK NIC bind
+ * Run testpmd
+ """
+
+ # 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')
+
+ # 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 -a ' + S.getValue('OVS_DPDK_SHARE') + '/* ' +
+ S.getValue('GUEST_OVS_DPDK_DIR'))
+ # Get VM info
+ self.execute_and_wait('cat /etc/default/grub')
+
+ # Disable services (F16)
+ self.execute_and_wait('systemctl status iptables.service')
+ self.execute_and_wait('systemctl stop iptables.service')
+
+ # 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')