Add gtpu flow offload test suite

The implementation of GTPU offload rx is to use ip4_gtpu flow MARK action
of NIC and vpp flow REDIRECT_TO_NODE and BUFFER_ADVANCE fuction to direct
received gtpu flow to gtpu4-flow-input graph node, skipped ethernet-input,
ip4-input, ip4-lookup, ip4-local, ip4-udp-lookup normal graph node
processing.

Verified on 3n-clx and Intel E810 NIC environment, single core with 64B packet,
performance improve ~33% that compare with pure software way.

Signed-off-by: xinfeng zhao <xinfengx.zhao@intel.com>
Signed-off-by: Yulong Pei <yulong.pei@intel.com>
Change-Id: I2af4589448bdb1729e4ce206a8cf3a1239c61af8
Signed-off-by: Yulong Pei <yulong.pei@intel.com>

2 files changed, 150 insertions, 4 deletions

diff --git a/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpuhw-ip4base-ndrpdr.robot b/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpuhw-ip4base-ndrpdr.robot
new file mode 100644
index 0000000000..86bbd56164
--- /dev/null
+++ b/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpuhw-ip4base-ndrpdr.robot
@@ -0,0 +1,146 @@
+# Copyright (c) 2022 Intel 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/shared/default.robot
+| Resource | resources/libraries/robot/overlay/gtpu.robot
+
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
+| ... | NIC_Intel-X710 | IP4FWD | IP4BASE | ENCAP | GTPU | GTPU_HWACCEL
+| ... | DRV_VFIO_PCI
+| ... | RXQ_SIZE_0 | TXQ_SIZE_0
+| ... | ethip4gtpuhw-ip4base
+|
+| Suite Setup | Setup suite topology interfaces | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test | performance
+| Test Teardown | Tear down test | performance
+|
+| Test Template | Local Template
+|
+| Documentation | **RFC2544: Pkt throughput GTPU test cases**
+| ... |
+| ... | - **[Top] Network Topologies:** TG-DUT1-DUT2-TG 3-node circular \
+| ... | topology with single links between nodes.
+| ... |
+| ... | - **[Enc] Packet Encapsulations:** Eth-IPv4-GTPU on DUT1-DUT2, \
+| ... | Eth-IPv4 on TG-DUTn for IPv4 routing over GTPU tunnel.
+| ... |
+| ... | - **[Cfg] DUT configuration:** DUT1 and DUT2 are configured with IPv4. \
+| ... | routing and static routes. GTPU tunnel is configured on each DUT and \
+| ... | enabled GTPU offload RX. DUT1 and DUT2 are tested with ${nic_name}.
+| ... |
+| ... | - **[Ver] TG verification:** TG finds and reports throughput NDR (Non \
+| ... | Drop Rate) with zero packet loss tolerance and 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 MLRsearch \
+| ... | library.
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile \
+| ... | contains two L3 flow-groups 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 ***
+| @{plugins_to_enable}= | dpdk_plugin.so | perfmon_plugin.so | gtpu_plugin.so
+| ${crypto_type}= | ${None}
+| ${nic_name}= | Intel-X710
+| ${nic_driver}= | vfio-pci
+| ${nic_rxq_size}= | 0
+| ${nic_txq_size}= | 0
+| ${nic_pfs}= | 2
+| ${nic_vfs}= | 0
+| ${osi_layer}= | L3
+| ${overhead}= | ${36}
+# Traffic profile:
+| ${traffic_profile}= | trex-stl-3n-ethip4-ip4src253
+
+*** Keywords ***
+| Local Template
+| |
+| | [Documentation]
+| | ... | - **[Cfg]** DUT runs GTPU routing config, and Enable GTPU offload \
+| | ... | RX config. Each DUT uses ${phy_cores} physical core(s) for worker \
+| | ... | threads.
+| | ... | - **[Ver]** Measure NDR and PDR values using MLRsearch algorithm.
+| |
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of physical cores. Type: integer
+| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
+| |
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| |
+| | Set Test Variable | \${frame_size}
+| |
+| | Given Set Max Rate And Jumbo
+| | And Add worker threads to all DUTs | ${phy_cores} | ${rxq}
+| | And Pre-initialize layer driver | ${nic_driver}
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer driver | ${nic_driver}
+| | And Initialize layer interface
+| | And Initialize IP4 forwarding with GTPU tunnel in 3-node circular topology
+| | ... | offload=${True}
+| | Then Find NDR and PDR intervals using optimized search
+
+*** Test Cases ***
+| 64B-1c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 64B | 1C
+| | frame_size=${64} | phy_cores=${1}
+
+| 64B-2c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 64B | 2C
+| | frame_size=${64} | phy_cores=${2}
+
+| 64B-4c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 64B | 4C
+| | frame_size=${64} | phy_cores=${4}
+
+| 1518B-1c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| 1518B-2c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| 1518B-4c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| 9000B-1c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| 9000B-2c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| 9000B-4c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| IMIX-1c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| IMIX-2c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| IMIX-4c-ethip4gtpuhw-ip4base-ndrpdr
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpusw-ip4base-ndrpdr.robot b/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpusw-ip4base-ndrpdr.robot
index 743a2ec8aa..f9cecd3bc0 100644
--- a/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpusw-ip4base-ndrpdr.robot
+++ b/tests/vpp/perf/ip4_tunnels/10ge2p1x710-ethip4gtpusw-ip4base-ndrpdr.robot
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Intel and/or its affiliates.
+# Copyright (c) 2022 Intel 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:
@@ -27,7 +27,7 @@
 |
 | Test Template | Local Template
 |
-| Documentation | **RFC2544: Pkt throughput gtpu test cases**
+| Documentation | **RFC2544: Pkt throughput GTPU test cases**
 | ... |
 | ... | - **[Top] Network Topologies:** TG-DUT1-DUT2-TG 3-node circular \
 | ... | topology with single links between nodes.
@@ -70,8 +70,8 @@
 | Local Template
 | |
 | | [Documentation]
-| | ... | - **[Cfg]** DUT runs Gtpu hw offload routing config. \
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | - **[Cfg]** DUT runs GTPU routing config. Each DUT uses \
+| | ... | ${phy_cores} physical core(s) for worker threads.
 | | ... | - **[Ver]** Measure NDR and PDR values using MLRsearch algorithm.
 | |
 | | ... | *Arguments:*