framework qemu_kvm: add server mode and multi queue support

1. Server mode In vhost reconnection test, we need set qemu
work in server mode(default is client mode) The sample command is :
"-chardev socket,id=char0,path=./vhost-net1,server"
2. Multiqueue
We can set multiqueue connection between vhost and virtio. Add this parameter for the
multi-queue performance testing. The sample command is: "-netdev
type=vhost-user,id=mynet1,chardev=char0,vhostforce,queues=4"
3. Change the VM launch waiting time. Some times,we find that lauching vm need more time.
So change count=20 to count 40

Signed-off-by: lei yao <lei.a.yao@intel.com>

2 files changed, 76 insertions, 7 deletions

diff --git a/conf/vhost_sample.cfg b/conf/vhost_sample.cfg
index ce34af8..8bdc20e 100644
--- a/conf/vhost_sample.cfg
+++ b/conf/vhost_sample.cfg
@@ -1,4 +1,63 @@
+# QEMU options
+# name
+#       name: vm0
+#
+# enable_kvm
+#       enable: [yes | no]
+#
+# cpu
+#       model: [host | core2duo | ...]
+#           usage:
+#               choose model value from the command
+#                   qemu-system-x86_64 -cpu help
+#       number: '4' #number of vcpus
+#       cpupin: '3 4 5 6' # host cpu list
+#
+# mem
+#       size: 1024
+#
+# disk
+#       file: /path/to/image/test.img
+#
+# char
+#       opt_path: define the file path to vhost-net socket file
+#       opt_server: define the qemu socket connection work at server mode or client mdoe. Default is client
+#
+# net
+#       type: [vhost-user | ...]
+#           vhost-user
+#               opt_queue: queue=n, used for multi-queue connection between vhost and virtio
+#
+# device
+#       driver: [ virtio-net-pci | ...]
+#           virtio-net-pci
+#               prop_netdev: netdev0
+#               opt_mac: 00:00:00:00:01:03
+#
+# monitor
+#       port: 6061
+#           note: if adding monitor to vm, need to specicy
+#                 this port, else it will get a free port
+#                 on the host machine.
+#
+# qga
+#       enable: [yes | no]
+#
+# serial_port
+#       enable: [yes | no]
+#
+# vnc
+#       displayNum: 1
+#           note: you can choose a number not used on the host.
+#
+# daemon
+#       enable: 'yes'
+#           note:
+#               By default VM will start with the daemonize status.
+#               Not support starting it on the stdin now.
+
 # vm configuration for vhost sample case
+
 [vm0]
 cpu =
     model=host,number=2,cpupin=24 25;
diff --git a/framework/qemu_kvm.py b/framework/qemu_kvm.py
index 6ced54a..e9d29cc 100644
--- a/framework/qemu_kvm.py
+++ b/framework/qemu_kvm.py
@@ -606,21 +606,31 @@ class QEMUKvm(VirtBase):
         if 'opt_path' in options.keys() and options['opt_path']:
             dev_boot_line = '-chardev socket'
             char_id = 'char%d' % self.char_idx
-            dev_boot_line += separator + 'id=%s' % char_id + separator + 'path=%s' % options['opt_path']
-            self.char_idx += 1
-            self.__add_boot_line(dev_boot_line)
+            if 'opt_server' in options.keys() and options['opt_server']:
+                dev_boot_line += separator + 'id=%s' % char_id + separator + 'path=%s' %options['opt_path'] + separator + '%s' % options['opt_server']
+		self.char_idx += 1
+                self.__add_boot_line(dev_boot_line)
+            else:
+                dev_boot_line += separator + 'id=%s' % char_id + separator + 'path=%s' %options['opt_path']
+                self.char_idx += 1
+                self.__add_boot_line(dev_boot_line)
             # netdev parameter
             netdev_id = 'netdev%d' % self.netdev_idx
             self.netdev_idx += 1
-            dev_boot_line = '-netdev type=vhost-user,id=%s,chardev=%s,vhostforce' % (netdev_id, char_id)
+            if 'opt_queue' in options.keys() and options['opt_queue']:
+                queue_num=options['opt_queue']
+                dev_boot_line = '-netdev type=vhost-user,id=%s,chardev=%s,vhostforce,queues=%s' % (netdev_id, char_id,queue_num)
+            else:
+                dev_boot_line = '-netdev type=vhost-user,id=%s,chardev=%s,vhostforce' % (netdev_id, char_id)
             self.__add_boot_line(dev_boot_line)
             # device parameter
             opts = {'opt_netdev': '%s' % netdev_id}
             if 'opt_mac' in options.keys() and \
                     options['opt_mac']:
                 opts['opt_mac'] = options['opt_mac']
-
-            self.__add_vm_virtio_net_pci(**opts)
+            if 'opt_settings' in options.keys() and options['opt_settings']:
+                opts['opt_settings'] = options['opt_settings']
+	self.__add_vm_virtio_net_pci(**opts)
 
     def __add_vm_virtio_cuse_pci(self, **options):
         """
@@ -939,7 +949,7 @@ class QEMUKvm(VirtBase):
         wait for 120 seconds for vm net ready
         10.0.2.* is the default ip address allocated by qemu
         """
-        count = 20
+        count = 40
         while count:
             out = self.__control_session('ifconfig')
             if "10.0.2" in out: