[dts] [PATCH V1] tests/nic_single_core_perf: add workaround for cvl io forward

[Lijuan Tu]

* fix txq/rxq setting for cvl
* add workaround for cvl that can't forward packets in io forward mode

Signed-off-by: Lijuan Tu <lijuan.tu at intel.com>
---
 tests/TestSuite_nic_single_core_perf.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/TestSuite_nic_single_core_perf.py b/tests/TestSuite_nic_single_core_perf.py
index 48a0d8a..b4d82c1 100644
--- a/tests/TestSuite_nic_single_core_perf.py
+++ b/tests/TestSuite_nic_single_core_perf.py
@@ -231,7 +231,9 @@ class TestNicSingleCorePerf(TestCase):
             param += " --rxq=2 --txq=2"
         # columbiaville use one queue per port for best performance.
         elif self.nic in ["columbiaville_100g", "columbiaville_25g"]:
-            param += "  --rxq=%d --rxq=%d" % (port_num, port_num)
+            param += " --rxq=1 --txq=1"
+            # workaround for that testpmd can't forward packets in io forward mode
+            param += " --port-topology=loop"
 
         for frame_size in list(self.test_parameters.keys()):
             self.throughput[frame_size] = dict()
-- 
1.8.3.1