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{
    "id": 110129,
    "url": "https://patches.dpdk.org/api/patches/110129/?format=api",
    "web_url": "https://patches.dpdk.org/project/dts/patch/20220422095304.1564865-1-weix.ling@intel.com/",
    "project": {
        "id": 3,
        "url": "https://patches.dpdk.org/api/projects/3/?format=api",
        "name": "DTS",
        "link_name": "dts",
        "list_id": "dts.dpdk.org",
        "list_email": "dts@dpdk.org",
        "web_url": "",
        "scm_url": "git://dpdk.org/tools/dts",
        "webscm_url": "http://git.dpdk.org/tools/dts/",
        "list_archive_url": "https://inbox.dpdk.org/dts",
        "list_archive_url_format": "https://inbox.dpdk.org/dts/{}",
        "commit_url_format": ""
    },
    "msgid": "<20220422095304.1564865-1-weix.ling@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dts/20220422095304.1564865-1-weix.ling@intel.com",
    "date": "2022-04-22T09:53:04",
    "name": "[V1,2/3] test_plans/vm2vm_virtio_pmd_cbdma_test_plan: add vm2vm_virtio_pmd_cbdma testplan",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "87582b2922162f4b9a5be47fe6fa4fbe07c7b4b9",
    "submitter": {
        "id": 1828,
        "url": "https://patches.dpdk.org/api/people/1828/?format=api",
        "name": "Ling, WeiX",
        "email": "weix.ling@intel.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dts/patch/20220422095304.1564865-1-weix.ling@intel.com/mbox/",
    "series": [
        {
            "id": 22626,
            "url": "https://patches.dpdk.org/api/series/22626/?format=api",
            "web_url": "https://patches.dpdk.org/project/dts/list/?series=22626",
            "date": "2022-04-22T09:52:34",
            "name": "add vm2vm_virtio_pmd_cbdma",
            "version": 1,
            "mbox": "https://patches.dpdk.org/series/22626/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/110129/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/110129/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dts-bounces@dpdk.org>",
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            "E=McAfee;i=\"6400,9594,10324\"; a=\"246539973\"",
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            "E=Sophos;i=\"5.90,281,1643702400\"; d=\"scan'208\";a=\"703489720\""
        ],
        "From": "Wei Ling <weix.ling@intel.com>",
        "To": "dts@dpdk.org",
        "Cc": "Wei Ling <weix.ling@intel.com>",
        "Subject": "[dts][PATCH V1 2/3] test_plans/vm2vm_virtio_pmd_cbdma_test_plan: add\n vm2vm_virtio_pmd_cbdma testplan",
        "Date": "Fri, 22 Apr 2022 17:53:04 +0800",
        "Message-Id": "<20220422095304.1564865-1-weix.ling@intel.com>",
        "X-Mailer": "git-send-email 2.25.1",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "X-BeenThere": "dts@dpdk.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "test suite reviews and discussions <dts.dpdk.org>",
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        "Errors-To": "dts-bounces@dpdk.org"
    },
    "content": "As commit 53d3f4778c(vhost: integrate dmadev in asynchronous data-path),\nadd new testsuite vm2vm_virtio_pmd_cbdma for coverage the vm2vm\nsplit ring and packed ring path test with cbdma.\n1) Add new testplan test_plans/vm2vm_virtio_pmd_cbdma_test_plan into\n   test_plans.\n\nSigned-off-by: Wei Ling <weix.ling@intel.com>\n---\n .../vm2vm_virtio_pmd_cbdma_test_plan.rst      | 381 ++++++++++++++++++\n 1 file changed, 381 insertions(+)\n create mode 100644 test_plans/vm2vm_virtio_pmd_cbdma_test_plan.rst",
    "diff": "diff --git a/test_plans/vm2vm_virtio_pmd_cbdma_test_plan.rst b/test_plans/vm2vm_virtio_pmd_cbdma_test_plan.rst\nnew file mode 100644\nindex 00000000..ed35065c\n--- /dev/null\n+++ b/test_plans/vm2vm_virtio_pmd_cbdma_test_plan.rst\n@@ -0,0 +1,381 @@\n+.. Copyright (c) <2022>, Intel Corporation\n+         All rights reserved.\n+\n+   Redistribution and use in source and binary forms, with or without\n+   modification, are permitted provided that the following conditions\n+   are met:\n+\n+   - Redistributions of source code must retain the above copyright\n+     notice, this list of conditions and the following disclaimer.\n+\n+   - Redistributions in binary form must reproduce the above copyright\n+     notice, this list of conditions and the following disclaimer in\n+     the documentation and/or other materials provided with the\n+     distribution.\n+\n+   - Neither the name of Intel Corporation nor the names of its\n+     contributors may be used to endorse or promote products derived\n+     from this software without specific prior written permission.\n+\n+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n+   \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS\n+   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE\n+   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,\n+   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n+   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR\n+   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\n+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,\n+   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n+   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED\n+   OF THE POSSIBILITY OF SUCH DAMAGE.\n+\n+=====================================\n+vm2vm vhost-user/virtio-pmd test plan\n+=====================================\n+\n+Description\n+===========\n+\n+This test plan includes vm2vm mergeable, normal and vector_rx path test with virtio 0.95 and virtio 1.0.\n+Since qemu 4.2.0, Packed virtqueue mergeable path and Packed virtqueue non-mergeable path can be supported.\n+then also add mergeable and non-mergeable path test with virtio 1.1.\n+\n+For more about dpdk-testpmd sample, please refer to the DPDK docments:\n+https://doc.dpdk.org/guides/testpmd_app_ug/run_app.html\n+\n+For virtio-user vdev parameter, you can refer to the DPDK docments:\n+https://doc.dpdk.org/guides/nics/virtio.html#virtio-paths-selection-and-usage.\n+\n+Prerequisites\n+=============\n+\n+Topology\n+--------\n+      Test flow: Virtio-pmd-->Vhost-user-->Testpmd-->Vhost-user-->Virtio-pmd\n+\n+Hardware\n+--------\n+      Supportted NICs: ALL\n+\n+Software\n+--------\n+      Trex:http://trex-tgn.cisco.com/trex/release/v2.26.tar.gz\n+\n+General set up\n+--------------\n+1. Compile DPDK::\n+\n+      # CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=<dpdk build dir>\n+      # ninja -C <dpdk build dir> -j 110\n+\n+2. Get the PCI device ID and DMA device ID of DUT, for example, 0000:18:00.0 is PCI device ID, 0000:00:04.0, 0000:00:04.1 is DMA device ID::\n+\n+      <dpdk dir># ./usertools/dpdk-devbind.py -s\n+\n+      Network devices using kernel driver\n+      ===================================\n+      0000:18:00.0 'Device 159b' if=ens785f0 drv=ice unused=vfio-pci\n+\n+      DMA devices using kernel driver\n+      ===============================\n+      0000:00:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci\n+      0000:00:04.1 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci\n+\n+Test case\n+=========\n+\n+Common steps\n+------------\n+1. Bind 1 NIC port and CBDMA channels to vfio-pci::\n+\n+      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port pci device id>\n+      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port DMA device id>\n+\n+      For example, Bind 1 NIC port and 2 CBDMA channels::\n+      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 0000:00:18.0\n+      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 0000:00:04.0,0000:00:04.1\n+\n+2. On VM1 and VM2, bind virtio device with vfio-pci driver::\n+\n+    modprobe vfio\n+    modprobe vfio-pci\n+    echo 1 > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode\n+    <dpdk dir># ./usertools/dpdk-devbind.py --force --bind=vfio-pci 0000:00:05.0\n+\n+Test Case 1: VM2VM virtio-pmd split ring mergeable path 8 queues CBDMA enable with server mode stable test\n+----------------------------------------------------------------------------------------------------------\n+This case uses testpmd and QEMU to test split ring mergeable path with 8 queues and CBDMA enable with server mode,\n+In VM, use testpmd to send imix packets, and relaunch vhost-user 10 times to test stable.\n+\n+1. Bind 16 CBDMA channels to vfio-pci, as common step 1.\n+\n+2. Launch the testpmd with 2 vhost port and 8 queues by below commands::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost \\\n+    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \\\n+    -a 0000:80:04.0 -a 0000:80:04.1 -a 0000:80:04.2 -a 0000:80:04.3 -a 0000:80:04.4 -a 0000:80:04.5 -a 0000:80:04.6 -a 0000:80:04.7 \\\n+    --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    --vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8 \\\n+    --lcore-dma=[lcore2@0000:00:04.0,lcore2@0000:00:04.1,lcore2@0000:00:04.2,lcore2@0000:00:04.3,lcore3@0000:00:04.4,lcore3@0000:00:04.5,lcore3@0000:00:04.6,lcore3@0000:00:04.7,\\\n+    lcore4@0000:80:04.0,lcore4@0000:80:04.1,lcore4@0000:80:04.2,lcore4@0000:80:04.3,lcore5@0000:80:04.4,lcore5@0000:80:04.5,lcore5@0000:80:04.6,lcore5@0000:80:04.7]\n+    testpmd>start\n+\n+3. Launch VM1 and VM2 using qemu::\n+\n+    taskset -c 6-16 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04.img  \\\n+    -chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 -device virtio-serial \\\n+    -device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+    -monitor unix:/tmp/vm1_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \\\n+    -chardev socket,id=char0,path=./vhost-net0,server \\\n+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\\\n+    mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10\n+\n+    taskset -c 17-27 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04-2.img  \\\n+    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \\\n+    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \\\n+    -chardev socket,id=char0,path=./vhost-net1,server \\\n+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,\\\n+    vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12\n+\n+4. On VM1 and VM2, bind virtio device with vfio-pci driver, as common step 2.\n+\n+5. Launch testpmd in VM1::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+    --txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+    testpmd>set fwd mac\n+    testpmd>start\n+\n+6. Launch testpmd in VM2, sent imix pkts from VM2::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+    --txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+    testpmd>set fwd mac\n+    testpmd>set txpkts 64,256,512,1024,2000,64,256,512,1024,2000\n+    testpmd>start tx_first 1\n+\n+7. Check imix packets can looped between two VMs and 8 queues all have packets rx/tx::\n+\n+    testpmd>show port stats all\n+    testpmd>stop\n+\n+8. Relaunch and start vhost side testpmd with below cmd::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost \\\n+    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \\\n+    -a 0000:80:04.0 -a 0000:80:04.1 -a 0000:80:04.2 -a 0000:80:04.3 -a 0000:80:04.4 -a 0000:80:04.5 -a 0000:80:04.6 -a 0000:80:04.7 \\\n+    --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    --vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8 \\\n+    --lcore-dma=[lcore2@0000:00:04.0,lcore2@0000:00:04.1,lcore2@0000:00:04.2,lcore2@0000:00:04.3,lcore3@0000:00:04.4,lcore3@0000:00:04.5,lcore3@0000:00:04.6,lcore3@0000:00:04.7,\\\n+    lcore4@0000:80:04.0,lcore4@0000:80:04.1,lcore4@0000:80:04.2,lcore4@0000:80:04.3,lcore5@0000:80:04.4,lcore5@0000:80:04.5,lcore5@0000:80:04.6,lcore5@0000:80:04.7]\n+    testpmd>start\n+\n+9. Send pkts by testpmd in VM2, check imix packets can looped between two VMs and 8 queues all have packets rx/tx::\n+\n+    testpmd>stop\n+    testpmd>start tx_first 1\n+    testpmd>show port stats all\n+    testpmd>stop\n+\n+10. Rerun step 7-8 for 10 times.\n+\n+Test Case 2: VM2VM virtio-pmd split ring mergeable path dynamic queue size CBDMA enable with server mode test\n+-------------------------------------------------------------------------------------------------------------\n+This case uses testpmd and QEMU to test split ring mergeable path and CBDMA enable with server mode,\n+In VM, use testpmd to send imix packets, and then dynamic queue size from 4 to 8 to test it works well or not.\n+\n+1. Bind 16 CBDMA channels to vfio-pci, as common step 1.\n+\n+2. Launch the testpmd with 2 vhost ports below commands::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost \\\n+    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \\\n+    -a 0000:80:04.0 -a 0000:80:04.1 -a 0000:80:04.2 -a 0000:80:04.3 -a 0000:80:04.4 -a 0000:80:04.5 -a 0000:80:04.6 -a 0000:80:04.7 \\\n+    --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3]' \\\n+    --vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3]' \\\n+    -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=4 --txq=4 \\\n+    --lcore-dma=[lcore2@0000:00:04.0,lcore2@0000:00:04.1,lcore2@0000:00:04.2,lcore2@0000:00:04.3,lcore3@0000:00:04.4,lcore3@0000:00:04.5,lcore3@0000:00:04.6,lcore3@0000:00:04.7,\\\n+    lcore4@0000:80:04.0,lcore4@0000:80:04.1,lcore4@0000:80:04.2,lcore4@0000:80:04.3,lcore5@0000:80:04.4,lcore5@0000:80:04.5,lcore5@0000:80:04.6,lcore5@0000:80:04.7]\n+    testpmd>start\n+\n+3. Launch VM1 and VM2 using qemu::\n+\n+    taskset -c 6-16 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04.img  \\\n+    -chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 -device virtio-serial \\\n+    -device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+    -monitor unix:/tmp/vm1_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \\\n+    -chardev socket,id=char0,path=./vhost-net0,server \\\n+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\\\n+    mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10\n+\n+    taskset -c 17-27 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04-2.img  \\\n+    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \\\n+    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \\\n+    -chardev socket,id=char0,path=./vhost-net1,server \\\n+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,\\\n+    vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12\n+\n+4. On VM1 and VM2, bind virtio device with vfio-pci driver, as common step 2.\n+\n+5. Launch testpmd in VM1::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+    --txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+    testpmd>set fwd mac\n+    testpmd>start\n+\n+6. Launch testpmd in VM2, sent imix pkts from VM2::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+    --txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+    testpmd>set fwd mac\n+    testpmd>set txpkts 64,256,512,1024,2000,64,256,512,1024,2000\n+    testpmd>start tx_first 1\n+\n+7. Check imix packets can looped between two VMs and  4 queues (queue0 to queue3) have packets rx/tx::\n+\n+    testpmd>show port stats all\n+    testpmd>stop\n+\n+\n+8. Relaunch and start vhost side testpmd with 8 queues::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost \\\n+    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \\\n+    -a 0000:80:04.0 -a 0000:80:04.1 -a 0000:80:04.2 -a 0000:80:04.3 -a 0000:80:04.4 -a 0000:80:04.5 -a 0000:80:04.6 -a 0000:80:04.7 \\\n+    --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    --vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8 \\\n+    --lcore-dma=[lcore2@0000:00:04.0,lcore2@0000:00:04.1,lcore2@0000:00:04.2,lcore2@0000:00:04.3,lcore3@0000:00:04.4,lcore3@0000:00:04.5,lcore3@0000:00:04.6,lcore3@0000:00:04.7,\\\n+    lcore4@0000:80:04.0,lcore4@0000:80:04.1,lcore4@0000:80:04.2,lcore4@0000:80:04.3,lcore5@0000:80:04.4,lcore5@0000:80:04.5,lcore5@0000:80:04.6,lcore5@0000:80:04.7]\n+    testpmd>start\n+\n+9. Send pkts by testpmd in VM2, check imix packets can looped between two VMs and 8 queues all have packets rx/tx::\n+\n+    testpmd>stop\n+    testpmd>start tx_first 1\n+    testpmd>show port stats all\n+    testpmd>stop\n+\n+10. Rerun step 7-8 for 10 times.\n+\n+Test Case 3: VM2VM virtio-pmd packed ring mergeable path 8 queues CBDMA enable test\n+-----------------------------------------------------------------------------------\n+This case uses testpmd and QEMU to test packed ring mergeable path with 8 queues and CBDMA enable,\n+In VM, use testpmd to send imix packets, and then quit VM1 and change VM1 from packed ring path to splirt ring path to test.\n+\n+1. Bind 16 CBDMA channels to vfio-pci, as common step 1.\n+\n+2. Launch the testpmd with 2 vhost port and 8 queues by below commands::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost  \\\n+    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \\\n+    -a 0000:80:04.0 -a 0000:80:04.1 -a 0000:80:04.2 -a 0000:80:04.3 -a 0000:80:04.4 -a 0000:80:04.5 -a 0000:80:04.6 -a 0000:80:04.7 \\\n+    --vdev 'net_vhost0,iface=vhost-net0,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]' \\\n+    --vdev 'net_vhost1,iface=vhost-net1,queues=8,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7]'  \\\n+    -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8 \\\n+    --lcore-dma=[lcore2@0000:00:04.0,lcore2@0000:00:04.1,lcore2@0000:00:04.2,lcore2@0000:00:04.3,lcore3@0000:00:04.4,lcore3@0000:00:04.5,lcore3@0000:00:04.6,lcore3@0000:00:04.7,\\\n+    lcore4@0000:80:04.0,lcore4@0000:80:04.1,lcore4@0000:80:04.2,lcore4@0000:80:04.3,lcore5@0000:80:04.4,lcore5@0000:80:04.5,lcore5@0000:80:04.6,lcore5@0000:80:04.7]\n+    testpmd>start\n+\n+3. Launch VM1 and VM2 with qemu::\n+\n+    taskset -c 6-16 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04.img  \\\n+    -chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 -device virtio-serial \\\n+    -device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+    -monitor unix:/tmp/vm1_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \\\n+    -chardev socket,id=char0,path=./vhost-net0 \\\n+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\\\n+    mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10\n+\n+    taskset -c 17-27 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04-2.img  \\\n+    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \\\n+    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \\\n+    -chardev socket,id=char0,path=./vhost-net1 \\\n+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,\\\n+    vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12\n+\n+4. On VM1 and VM2, bind virtio device with vfio-pci driver, as common step 2.\n+\n+5. Launch testpmd in VM1::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+    --txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+    testpmd>set fwd mac\n+    testpmd>start\n+\n+6. Launch testpmd in VM2, sent imix pkts from VM2::\n+\n+    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+    --txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+    testpmd>set fwd mac\n+    testpmd>set txpkts 64,256,512,1024,2000,64,256,512,1024,2000\n+    testpmd>start tx_first 1\n+\n+7. Check imix packets can looped between two VMs and 8 queues all have packets rx/tx::\n+\n+    testpmd>show port stats all\n+    testpmd>stop\n+\n+8. Quit VM2 and relaunch VM2 with split ring::\n+\n+\ttaskset -c 6-16 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 9 -m 4096 \\\n+\t-object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \\\n+\t-numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu20-04.img  \\\n+\t-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \\\n+\t-device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \\\n+\t-monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \\\n+\t-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \\\n+\t-chardev socket,id=char0,path=./vhost-net0 \\\n+\t-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \\\n+\t-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\\\n+\tmq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10\n+\n+9. Bind virtio device with vfio-pci driver::\n+\n+    modprobe vfio\n+    modprobe vfio-pci\n+    echo 1 > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode\n+    <dpdk dir># ./usertools/dpdk-devbind.py --force --bind=vfio-pci 0000:00:05.0\n+\n+10. Launch testpmd in VM2 and send imix pkts from VM2::\n+\n+\t<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x3 -n 4 -- -i --tx-offloads=0x00 --enable-hw-vlan-strip \\\n+\t--txq=8 --rxq=8 --txd=1024 --rxd=1024 --max-pkt-len=9600 --rx-offloads=0x00002000\n+\ttestpmd>set fwd mac\n+\ttestpmd>set txpkts 64,256,512,1024,2000,64,256,512,1024,2000\n+\n+11. Check imix packets can looped between two VMs and 8 queues all have packets rx/tx::\n+\n+\ttestpmd>show port stats all\n+\ttestpmd>stop\n",
    "prefixes": [
        "V1",
        "2/3"
    ]
}