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+# 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.NodePath
+| ...
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDRDISC
+| ... | NIC_Intel-XL710 | ETH | L2BDMACLRN | BASE
+| Suite Setup | Set up 3-node performance topology with DUT's NIC model
+| ... | L2 | Intel-XL710
+| Suite Teardown | Tear down 3-node performance topology
+| ...
+| Test Setup | Set up performance test
+| ...
+| Test Teardown | Tear down performance discovery test | ${min_rate}pps
+| ... | ${framesize} | ${traffic_profile}
+| ...
+| Documentation | *RFC2544: Pkt throughput L2BD test cases*
+| ...
+| ... | *[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.
+| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-\
+| ... | domain and MAC learning enabled. DUT1 and DUT2 tested with 2p40GE NIC\
+| ... | XL710-DA2 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 ***
+# XL710-DA2 bandwidth limit ~49Gbps/2=24.5Gbps
+| ${s_24.5G} | ${24500000000}
+# XL710-DA2 Mpps limit 37.5Mpps/2=18.75Mpps
+| ${s_18.75Mpps} | ${18750000}
+# Traffic profile:
+| ${traffic_profile} | trex-sl-3n-ethip4-ip4src254
+
+*** Keywords ***
+| L2 Bridge Domain NDR Binary Search BW limit
+| | [Arguments] | ${framesize} | ${min_rate} | ${wt} | ${rxq} | ${s_limit}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | Add PCI devices to DUTs in 3-node single link topology
+| | ${get_framesize}= | Get Frame Size | ${framesize}
+| | Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | Apply startup configuration on all VPP DUTs
+| | Initialize L2 bridge domain in 3-node circular topology
+| | Find NDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+
+| L2 Bridge Domain NDR Binary Search
+| | [Arguments] | ${framesize} | ${min_rate} | ${wt} | ${rxq} | ${s_limit}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${max_rate}= | Set Variable | ${s_limit}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | Add PCI devices to DUTs in 3-node single link topology
+| | ${get_framesize}= | Get Frame Size | ${framesize}
+| | Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | Apply startup configuration on all VPP DUTs
+| | Initialize L2 bridge domain in 3-node circular topology
+| | Find NDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+
+| L2 Bridge Domain PDR Binary Search BW limit
+| | [Arguments] | ${framesize} | ${min_rate} | ${wt} | ${rxq} | ${s_limit}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | Add PCI devices to DUTs in 3-node single link topology
+| | ${get_framesize}= | Get Frame Size | ${framesize}
+| | Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | Apply startup configuration on all VPP DUTs
+| | Initialize L2 bridge domain in 3-node circular topology
+| | 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}
+
+| L2 Bridge Domain PDR Binary Search
+| | [Arguments] | ${framesize} | ${min_rate} | ${wt} | ${rxq} | ${s_limit}
+| | Set Test Variable | ${framesize}
+| | Set Test Variable | ${min_rate}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
+| | ${binary_min}= | Set Variable | ${min_rate}
+| | ${binary_max}= | Set Variable | ${max_rate}
+| | ${threshold}= | Set Variable | ${min_rate}
+| | Add '${wt}' worker threads and '${rxq}' rxqueues in 3-node single-link circular topology
+| | Add PCI devices to DUTs in 3-node single link topology
+| | ${get_framesize}= | Get Frame Size | ${framesize}
+| | Run Keyword If | ${get_framesize} < ${1522} | Add no multi seg to all DUTs
+| | Apply startup configuration on all VPP DUTs
+| | Initialize L2 bridge domain in 3-node circular topology
+| | Find PDR using binary search and pps
+| | ... | ${framesize} | ${binary_min} | ${binary_max} | ${traffic_profile}
+| | ... | ${min_rate} | ${max_rate} | ${threshold}
+| | ... | ${perf_pdr_loss_acceptance} | ${perf_pdr_loss_acceptance_type}
+
+*** Test Cases ***
+| tc01-64B-1t1c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=${64} | min_rate=${100000} | wt=1 | rxq=1
+| | ... | s_limit=${s_18.75Mpps}
+| | [Tags] | 64B | 1T1C | STHREAD | NDRDISC
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 1 thread, 1 phy core, 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at\
+| | ... | 18.75Mpps rate, step 100kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search
+
+| tc03-1518B-1t1c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=${1518} | min_rate=${10000} | wt=1 | rxq=1
+| | ... | s_limit=${s_24.5G}
+| | [Tags] | 1518B | 1T1C | STHREAD | NDRDISC
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 1 thread, 1 phy core, 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at\
+| | ... | 24.5G rate, step 10kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search BW limit
+
+| tc07-64B-2t2c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=${64} | min_rate=${100000} | wt=2 | rxq=1
+| | ... | s_limit=${s_18.75Mpps}
+| | [Tags] | 64B | 2T2C | MTHREAD | NDRDISC
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 2 threads, 2 phy cores, 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at\
+| | ... | 18.75Mpps rate, step 100kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search
+
+| tc09-1518B-2t2c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=${1518} | min_rate=${10000} | wt=2 | rxq=1
+| | ... | s_limit=${s_24.5G}
+| | [Tags] | 1518B | 2T2C | MTHREAD | NDRDISC | SKIP_PATCH
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 2 threads, 2 phy cores, 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at\
+| | ... | 24.5G rate, step 10kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search BW limit
+
+| tc13-64B-4t4c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=${64} | min_rate=${100000} | wt=4 | rxq=2
+| | ... | s_limit=${s_18.75Mpps}
+| | [Tags] | 64B | 4T4C | MTHREAD | NDRDISC
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 4 threads, 4 phy cores, 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 64 Byte frames using binary search start at\
+| | ... | 18.75Mpps rate, step 100kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search
+
+| tc15-1518B-4t4c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=${1518} | min_rate=${10000} | wt=4 | rxq=2
+| | ... | s_limit=${s_24.5G}
+| | [Tags] | 1518B | 4T4C | MTHREAD | NDRDISC | SKIP_PATCH
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 4 threads, 4 phy cores, 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for 1518 Byte frames using binary search start at\
+| | ... | 24.5G rate, step 10kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search BW limit
+
+| tc19-IMIX-1t1c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=IMIX_v4_1 | min_rate=${100000} | wt=1 | rxq=1
+| | ... | s_limit=${s_24.5G}
+| | [Tags] | IMIX | 1T1C | STHREAD | NDRDISC
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 1 thread, 1 phy core, 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 frames using binary search start at\
+| | ... | 24.5G rate, step 100kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search BW limit
+
+| tc20-IMIX-2t2c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=IMIX_v4_1 | min_rate=${100000} | wt=2 | rxq=1
+| | ... | s_limit=${s_24.5G}
+| | [Tags] | IMIX | 2T2C | MTHREAD | NDRDISC | SKIP_PATCH
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 2 threads, 2 phy cores, 1 receive queue per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 frames using binary search start at\
+| | ... | 24.5G rate, step 100kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search BW limit
+
+| tc21-IMIX-4t4c-eth-l2bdbasemaclrn-ndrdisc
+| | ... | framesize=IMIX_v4_1 | min_rate=${100000} | wt=4 | rxq=2
+| | ... | s_limit=${s_24.5G}
+| | [Tags] | IMIX | 4T4C | MTHREAD | NDRDISC | SKIP_PATCH
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2BD switching config with with\
+| | ... | 4 threads, 4 phy cores, 2 receive queues per NIC port.
+| | ... | [Ver] Find NDR for IMIX_v4_1 frames using binary search start at\
+| | ... | 24.5G rate, step 100kpps.
+| | [Template] | L2 Bridge Domain NDR Binary Search BW limit