dpdk: Support dpdk vhost-user client mode

Support of vhost-user client mode has been added for both
OVS and VPP. VSPERF configures vhost-user server mode
in vswitches by default for backward compatibility.
Support of vhost-user server mode is deprecated
in OVS and it can be removed in future releases. Once it will
happen, we have to change vsperf default behavior to
usage of vhost-user client ports at vswitch side.

This patch also fixes processing of boolean configuration
parameters passed via --test-params option. In the past
it was not possible to set boolean value to False through
--test-params option.

JIRA: VSPERF-517

Change-Id: I65e341f820edd6c720043a4acc74c5140b05db18
Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Christian Trautman <ctrautma@redhat.com>
Reviewed-by: Sridhar Rao <sridhar.rao@spirent.com>
Reviewed-by: Trevor Cooper <trevor.cooper@intel.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/vswitches/vpp_dpdk_vhost.py b/vswitches/vpp_dpdk_vhost.py
index 42f1cdf1..317f3798 100644
--- a/vswitches/vpp_dpdk_vhost.py
+++ b/vswitches/vpp_dpdk_vhost.py
@@ -225,7 +225,11 @@ class VppDpdkVhost(IVSwitch, tasks.Process):
         """See IVswitch for general description
         """
         socket_name = S.getValue('TOOLS')['ovs_var_tmp'] + 'dpdkvhostuser' + str(len(self._virt_ports))
-        output = self.run_vppctl(['create', 'vhost-user', 'socket', socket_name, 'server'] +
+        if S.getValue('VSWITCH_VHOSTUSER_SERVER_MODE'):
+            mode = ['server']
+        else:
+            mode = []
+        output = self.run_vppctl(['create', 'vhost-user', 'socket', socket_name] + mode +
                                  S.getValue('VSWITCH_VPP_VHOSTUSER_ARGS'))
         if output[0].find('returned') >= 0:
             raise RuntimeError('VPP VhostUser interface cannot be created.')