CSIT-660: add vring1024 tuned CFS for vpp workers and guest-testpmd

- add vhost tests (L2XBD, L2XC and IP4BASE) with vring set to 1024 and
  tuned CFS setting

Change-Id: Ief8b4b86cdecfa39bf8cf0ec90fb844edfc6f396
Signed-off-by: Jan Gelety <jgelety@cisco.com>

3 files changed, 998 insertions, 0 deletions

diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot b/tests/vpp/perf/vm_vhost/10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot
new file mode 100644
index 0000000000..cc3682e2fe
--- /dev/null
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot
@@ -0,0 +1,333 @@
+# Copyright (c) 2017 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:
+#
+#     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.
+
+*** Settings ***
+| Resource | resources/libraries/robot/performance/performance_setup.robot
+| Library | resources.libraries.python.QemuUtils
+| ...
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDRDISC
+| ... | NIC_Intel-X520-DA2 | DOT1Q | L2BDMACLRN | BASE | VHOST | VM
+| ...
+| Suite Setup | Set up 3-node performance topology with DUT's NIC model
+| ... | L2 | Intel-X520-DA2
+| Suite Teardown | Tear down 3-node performance topology
+| ...
+| Test Setup | Set up performance test
+| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
+| ... | ${min_rate}pps | ${framesize} | ${traffic_profile}
+| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| ...
+| Documentation | *RFC2544: Packet throughput L2BD test cases with vhost*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4. 802.1q
+| ... | tagging is applied on link between DUT1 and DUT2.
+| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
+| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
+| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
+| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
+| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
+| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
+| ... | io, rxd/txd=1024, burst=64. Scheduler policy is set to SCHED_RR with
+| ... | priority 1 for all Qemu CPUs. DUT1, DUT2 are tested with 2p10GE NIC X520
+| ... | Niantic by Intel..
+| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop
+| ... | Rate) with zero packet loss tolerance or throughput PDR (Partial Drop
+| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage
+| ... | of packets transmitted. NDR and PDR are discovered for different
+| ... | Ethernet L2 frame sizes using either binary search or linear search
+| ... | algorithms with configured starting rate and final step that determines
+| ... | throughput measurement resolution. Test packets are generated by TG on
+| ... | links to DUTs. TG traffic profile contains two L3 flow-groups
+| ... | (flow-group per direction, 253 flows per flow-group) with all packets
+| ... | containing Ethernet header, IPv4 header with IP protocol=61 and static
+| ... | payload. MAC addresses are matching MAC addresses of the TG node
+| ... | interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
+
+*** Variables ***
+| ${avg_imix_framesize}= | ${357.833}
+# X520-DA2 bandwidth limit
+| ${s_limit} | ${10000000000}
+# Socket names
+| ${bd_id1}= | 1
+| ${bd_id2}= | 2
+| ${sock1}= | /tmp/sock-1-${bd_id1}
+| ${sock2}= | /tmp/sock-1-${bd_id2}
+# Traffic profile:
+| ${traffic_profile} | trex-sl-3n-ethip4-ip4src254
+
+*** Keywords ***
+| Discover NDR or PDR for L2 Bridge Domain with VM
+| | [Arguments] | ${wt} | ${rxq} | ${framesize} | ${min_rate} | ${search_type}
+| | ...
+| | Set Test Variable | ${use_tuned_cfs} | ${True}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${get_framesize}= | Set Variable If
+| | ... | "${framesize}" == "IMIX_v4_1" | ${avg_imix_framesize}
+| | ... |  ${framesize}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${get_framesize}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | ${dut1_vm_refs}= | Create Dictionary
+| | ${dut2_vm_refs}= | Create Dictionary
+| | Set Test Variable | ${dut1_vm_refs}
+| | Set Test Variable | ${dut2_vm_refs}
+| | Given Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize L2 bridge domains with Vhost-User in 3-node circular topology
+| | ... | ${bd_id1} | ${bd_id2} | ${sock1} | ${sock2}
+| | ${vm1}= | And Configure guest VM with dpdk-testpmd connected via vhost-user
+| | ... | ${dut1} | ${sock1} | ${sock2} | DUT1_VM1
+| | Set To Dictionary | ${dut1_vm_refs} | DUT1_VM1 | ${vm1}
+| | ${vm2}= | And Configure guest VM with dpdk-testpmd connected via vhost-user
+| | ... | ${dut2} | ${sock1} | ${sock2} | DUT2_VM1
+| | Set To Dictionary | ${dut2_vm_refs} | DUT2_VM1 | ${vm2}
+| | Run Keyword If | '${search_type}' == 'NDR'
+| | ... | Find NDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ELSE IF | '${search_type}' == 'PDR'
+| | ... | Find PDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ${perf_pdr_loss_acceptance} | ${perf_pdr_loss_acceptance_type}
+
+*** Test Cases ***
+| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=1 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc02-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=1 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc03-1518B-1t1c-etc-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=1 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc04-1518B-1t1c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=1 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc05-IMIX-1t1c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=1 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc06-IMIX-1t1c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps, LT=0.5%.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=1 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
+
+| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 2T2C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=2 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc08-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=2 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc09-1518B-2t2c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 2T2C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=2 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc10-1518B-2t2c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=2 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc11-IMIX-2t2c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 2T2C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=2 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc12-IMIX-2t2c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=2 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
+
+| tc13-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 4T4C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=4 | rxq=2 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc14-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=4 | rxq=2 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc15-1518B-4t4c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 4T4C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=4 | rxq=2 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc16-1518B-4t4c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=4 | rxq=2 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc17-IMIX-4t4c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 4T4C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=4 | rxq=2 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc18-IMIX-4t4c-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps, LT=0.5%.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 Bridge Domain with VM
+| | wt=4 | rxq=2 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x520-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot b/tests/vpp/perf/vm_vhost/10ge2p1x520-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot
new file mode 100644
index 0000000000..52cc352e96
--- /dev/null
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x520-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot
@@ -0,0 +1,330 @@
+# Copyright (c) 2017 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:
+#
+#     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.
+
+*** Settings ***
+| Resource | resources/libraries/robot/performance/performance_setup.robot
+| Library | resources.libraries.python.QemuUtils
+| ...
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDRDISC
+| ... | NIC_Intel-X520-DA2 | DOT1Q | L2BDMACLRN | BASE | VHOST | VM
+| ...
+| Suite Setup | Set up 3-node performance topology with DUT's NIC model
+| ... | L2 | Intel-X520-DA2
+| Suite Teardown | Tear down 3-node performance topology
+| ...
+| Test Setup | Set up performance test
+| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
+| ... | ${min_rate}pps | ${framesize} | ${traffic_profile}
+| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| ...
+| Documentation | *RFC2544: Packet throughput L2BD test cases with vhost*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4. 802.1q
+| ... | tagging is applied on link between DUT1 and DUT2.
+| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 cross-
+| ... | connect. Qemu Guest is connected to VPP via vhost-user interfaces.
+| ... | Guest is running DPDK testpmd interconnecting vhost-user interfaces
+| ... | using 5 cores pinned to cpus 5-9 and 2048M memory. Testpmd is using
+| ... | socket-mem=1024M (512x2M hugepages), 5 cores (1 main core and 4 cores
+| ... | dedicated for io), forwarding mode is set to io, rxd/txd=1024,
+| ... | burst=64. Scheduler policy is set to SCHED_RR with priority 1 for all
+| ... | Qemu CPUs. DUT1, DUT2 are tested with 2p10GE NIC X520 Niantic by Intel.
+| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop
+| ... | Rate) with zero packet loss tolerance or throughput PDR (Partial Drop
+| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage
+| ... | of packets transmitted. NDR and PDR are discovered for different
+| ... | Ethernet L2 frame sizes using either binary search or linear search
+| ... | algorithms with configured starting rate and final step that determines
+| ... | throughput measurement resolution. Test packets are generated by TG on
+| ... | links to DUTs. TG traffic profile contains two L3 flow-groups
+| ... | (flow-group per direction, 253 flows per flow-group) with all packets
+| ... | containing Ethernet header, IPv4 header with IP protocol=61 and static
+| ... | payload. MAC addresses are matching MAC addresses of the TG node
+| ... | interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
+
+*** Variables ***
+| ${avg_imix_framesize}= | ${357.833}
+# X520-DA2 bandwidth limit
+| ${s_limit} | ${10000000000}
+# Socket names
+| ${sock1}= | /tmp/sock-1-1
+| ${sock2}= | /tmp/sock-1-2
+# Traffic profile:
+| ${traffic_profile} | trex-sl-3n-ethip4-ip4src254
+
+*** Keywords ***
+| Discover NDR or PDR for L2 xconnect with VM
+| | [Arguments] | ${wt} | ${rxq} | ${framesize} | ${min_rate} | ${search_type}
+| | ...
+| | Set Test Variable | ${use_tuned_cfs} | ${True}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${get_framesize}= | Set Variable If
+| | ... | "${framesize}" == "IMIX_v4_1" | ${avg_imix_framesize}
+| | ... |  ${framesize}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${get_framesize}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | ${dut1_vm_refs}= | Create Dictionary
+| | ${dut2_vm_refs}= | Create Dictionary
+| | Set Test Variable | ${dut1_vm_refs}
+| | Set Test Variable | ${dut2_vm_refs}
+| | Given Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize L2 xconnect with Vhost-User in 3-node circular topology
+| | ... | ${sock1} | ${sock2}
+| | ${vm1}= | And Configure guest VM with dpdk-testpmd connected via vhost-user
+| | ... | ${dut1} | ${sock1} | ${sock2} | DUT1_VM1
+| | Set To Dictionary | ${dut1_vm_refs} | DUT1_VM1 | ${vm1}
+| | ${vm2}= | And Configure guest VM with dpdk-testpmd connected via vhost-user
+| | ... | ${dut2} | ${sock1} | ${sock2} | DUT2_VM1
+| | Set To Dictionary | ${dut2_vm_refs} | DUT2_VM1 | ${vm2}
+| | Run Keyword If | '${search_type}' == 'NDR'
+| | ... | Find NDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ELSE IF | '${search_type}' == 'PDR'
+| | ... | Find PDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ${perf_pdr_loss_acceptance} | ${perf_pdr_loss_acceptance_type}
+
+*** Test Cases ***
+| tc01-64B-1t1c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=1 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc02-64B-1t1c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=1 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc03-1518B-1t1c-etc-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=1 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc04-1518B-1t1c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=1 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc05-IMIX-1t1c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=1 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc06-IMIX-1t1c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps, LT=0.5%.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=1 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
+
+| tc07-64B-2t2c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 2T2C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=2 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc08-64B-2t2c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=2 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc09-1518B-2t2c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 2T2C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=2 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc10-1518B-2t2c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=2 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc11-IMIX-2t2c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 2T2C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=2 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc12-IMIX-2t2c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=2 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
+
+| tc13-64B-4t4c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 4T4C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=4 | rxq=2 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc14-64B-4t4c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=4 | rxq=2 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc15-1518B-4t4c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 4T4C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=4 | rxq=2 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc16-1518B-4t4c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=4 | rxq=2 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc17-IMIX-4t4c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 4T4C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=4 | rxq=2 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc18-IMIX-4t4c-eth-l2xcbase-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps, LT=0.5%.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for L2 xconnect with VM
+| | wt=4 | rxq=2 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x520-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot b/tests/vpp/perf/vm_vhost/10ge2p1x520-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot
new file mode 100644
index 0000000000..a9b770a733
--- /dev/null
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x520-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrpdrdisc.robot
@@ -0,0 +1,335 @@
+# Copyright (c) 2017 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:
+#
+#     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.
+
+*** Settings ***
+| Resource | resources/libraries/robot/performance/performance_setup.robot
+| Library | resources.libraries.python.QemuUtils
+| ...
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDRDISC
+| ... | NIC_Intel-X520-DA2 | DOT1Q | L2BDMACLRN | BASE | VHOST | VM
+| ...
+| Suite Setup | Set up 3-node performance topology with DUT's NIC model
+| ... | L3 | Intel-X520-DA2
+| Suite Teardown | Tear down 3-node performance topology
+| ...
+| Test Setup | Set up performance test
+| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
+| ... | ${min_rate}pps | ${framesize} | ${traffic_profile}
+| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| ...
+| Documentation | *RFC2544: Packet throughput L2BD test cases with vhost*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for IPv4 routing.
+| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with IPv4
+| ... | routing and two static IPv4 /24 route entries. Qemu Guest is connected
+| ... | to VPP via vhost-user interfaces. Guest is running DPDK testpmd
+| ... | interconnecting vhost-user interfaces using 5 cores pinned to cpus 5-9
+| ... | and 2048M memory. Testpmd is using socket-mem=1024M (512x2M hugepages),
+| ... | 5 cores (1 main core and 4 cores dedicated for io), forwarding mode is
+| ... | set to mac, rxd/txd=1024, burst=64. Scheduler policy is set to SCHED_RR
+| ... | with priority 1 for all Qemu CPUs. DUT1, DUT2 are tested with 2p10GE
+| ... | NIC X520 Niantic by Intel.
+| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop
+| ... | Rate) with zero packet loss tolerance or throughput PDR (Partial Drop
+| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage
+| ... | of packets transmitted. NDR and PDR are discovered for different
+| ... | Ethernet L2 frame sizes using either binary search or linear search
+| ... | algorithms with configured starting rate and final step that determines
+| ... | throughput measurement resolution. Test packets are generated by TG on
+| ... | links to DUTs. TG traffic profile contains two L3 flow-groups
+| ... | (flow-group per direction, 253 flows per flow-group) with all packets
+| ... | containing Ethernet header, IPv4 header with IP protocol=61 and static
+| ... | payload. MAC addresses are matching MAC addresses of the TG node
+| ... | interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
+
+*** Variables ***
+| ${avg_imix_framesize}= | ${357.833}
+# X520-DA2 bandwidth limit
+| ${s_limit} | ${10000000000}
+# Socket names
+| ${sock1}= | /tmp/sock-1-1
+| ${sock2}= | /tmp/sock-1-2
+# FIB tables
+| ${fib_table_1}= | 100
+| ${fib_table_2}= | 101
+# Traffic profile:
+| ${traffic_profile} | trex-sl-3n-ethip4-ip4src253
+
+*** Keywords ***
+| Discover NDR or PDR for IPv4 forwarding with VM
+| | [Arguments] | ${wt} | ${rxq} | ${framesize} | ${min_rate} | ${search_type}
+| | ...
+| | Set Test Variable | ${use_tuned_cfs} | ${True}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${get_framesize}= | Set Variable If
+| | ... | "${framesize}" == "IMIX_v4_1" | ${avg_imix_framesize}
+| | ... |  ${framesize}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${get_framesize}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | ${dut1_vm_refs}= | Create Dictionary
+| | ${dut2_vm_refs}= | Create Dictionary
+| | Set Test Variable | ${dut1_vm_refs}
+| | Set Test Variable | ${dut2_vm_refs}
+| | Given Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize IPv4 forwarding with vhost in 3-node circular topology
+| | ... | ${sock1} | ${sock2}
+| | ${vm1}= | And Configure guest VM with dpdk-testpmd-mac connected via vhost-user
+| | ... | ${dut1} | ${sock1} | ${sock2} | DUT1_VM1 | ${dut1_vif1_mac}
+| | ... | ${dut1_vif2_mac}
+| | Set To Dictionary | ${dut1_vm_refs} | DUT1_VM1 | ${vm1}
+| | ${vm2}= | And Configure guest VM with dpdk-testpmd-mac connected via vhost-user
+| | ... | ${dut2} | ${sock1} | ${sock2} | DUT2_VM1 | ${dut2_vif1_mac}
+| | ... | ${dut2_vif2_mac}
+| | Set To Dictionary | ${dut2_vm_refs} | DUT2_VM1 | ${vm2}
+| | Run Keyword If | '${search_type}' == 'NDR'
+| | ... | Find NDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ELSE IF | '${search_type}' == 'PDR'
+| | ... | Find PDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ${perf_pdr_loss_acceptance} | ${perf_pdr_loss_acceptance_type}
+
+*** Test Cases ***
+| tc01-64B-1t1c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=1 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc02-64B-1t1c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=1 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc03-1518B-1t1c-etc-l2bdbasemaclrn-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=1 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc04-1518B-1t1c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=1 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc05-IMIX-1t1c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 1T1C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=1 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc06-IMIX-1t1c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 1 thread, 1 phy core,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps, LT=0.5%.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 1T1C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=1 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
+
+| tc07-64B-2t2c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 2T2C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=2 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc08-64B-2t2c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=2 | rxq=1 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc09-1518B-2t2c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 2T2C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=2 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc10-1518B-2t2c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=2 | rxq=1 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc11-IMIX-2t2c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 2T2C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=2 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc12-IMIX-2t2c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 2 threads, 2 phy cores,\
+| | ... | 1 receive queue per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 2T2C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=2 | rxq=1 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR
+
+| tc13-64B-4t4c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 64B | 4T4C | STHREAD | NDRDISC
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=4 | rxq=2 | framesize=${64} | min_rate=${10000} | search_type=NDR
+
+| tc14-64B-4t4c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for 64 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 64B | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=4 | rxq=2 | framesize=${64} | min_rate=${10000} | search_type=PDR
+
+| tc15-1518B-4t4c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps.
+| | ...
+| | [Tags] | 1518B | 4T4C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=4 | rxq=2 | framesize=${1518} | min_rate=${10000} | search_type=NDR
+
+| tc16-1518B-4t4c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for 1518 Byte frames using binary search start at 10GE\
+| | ... | linerate, step 10kpps, LT=0.5%.
+| | ...
+| | [Tags] | 1518B | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=4 | rxq=2 | framesize=${1518} | min_rate=${10000} | search_type=PDR
+
+| tc17-IMIX-4t4c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-ndrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 4T4C | STHREAD | NDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=4 | rxq=2 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=NDR
+
+| tc18-IMIX-4t4c-ethip4-ip4base-eth-2vhostvr1024-1vm-cfsrr1-pdrdisc
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with 4 threads, 4 phy cores,\
+| | ... | 2 receive queues per NIC port.
+| | ... | [Ver] Find PDR for IMIX_v4_1 framesize using binary search start at\
+| | ... | 10GE linerate, step 10kpps, LT=0.5%.
+| | ... | IMIX_v4_1 = (28x64B; 16x570B; 4x1518B)
+| | ...
+| | [Tags] | IMIX | 4T4C | STHREAD | PDRDISC | SKIP_PATCH
+| | ...
+| | [Template] | Discover NDR or PDR for IPv4 forwarding with VM
+| | wt=4 | rxq=2 | framesize=IMIX_v4_1 | min_rate=${10000} | search_type=PDR