diff mbox series

[V1,6/7] test_plans/vm2vm_virtio_user_dsa_test_plan: add vm2vm_virtio_user_dsa testplan

Message ID 20220507095952.311180-1-weix.ling@intel.com (mailing list archive)
State Accepted
Headers show
Series add 6 das related testplan | expand

Commit Message

Ling, WeiX May 7, 2022, 9:59 a.m. UTC
Add vm2vm_virtio_user_dsa_test_plan.rst into test_plans.

Signed-off-by: Wei Ling <weix.ling@intel.com>
---
 .../vm2vm_virtio_user_dsa_test_plan.rst       | 1536 +++++++++++++++++
 1 file changed, 1536 insertions(+)
 create mode 100644 test_plans/vm2vm_virtio_user_dsa_test_plan.rst
diff mbox series

Patch

diff --git a/test_plans/vm2vm_virtio_user_dsa_test_plan.rst b/test_plans/vm2vm_virtio_user_dsa_test_plan.rst
new file mode 100644
index 00000000..99ae37a2
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@@ -0,0 +1,1536 @@ 
+.. Copyright (c) <2022>, Intel Corporation
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+
+   - Neither the name of Intel Corporation nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+   OF THE POSSIBILITY OF SUCH DAMAGE.
+
+======================================================
+VM2VM vhost-user/virtio-user with DSA driver test plan
+======================================================
+
+Description
+===========
+Vhost asynchronous data path leverages DMA devices to offload memory copies from the CPU and it is implemented in an asynchronous way.
+In addition, vhost supports M:N mapping between vrings and DMA virtual channels. Specifically, one vring can use multiple different DMA
+channels and one DMA channel can be shared by multiple vrings at the same time.Vhost enqueue operation with CBDMA channels is supported
+in both split and packed ring.
+
+This document provides the test plan for testing the following features when Vhost-user using asynchronous data path with
+DSA driver (kernel IDXD driver and DPDK vfio-pci driver) in VM2VM virtio-user topology.
+1. Split virtqueue vm2vm in-order mergeable, in-order non-mergeable, mergeable, non-mergeable, vector_rx path test and payload check.
+2. Packed virtqueue vm2vm in-order mergeable, in-order non-mergeable, mergeable, non-mergeable, vectorized path (ringsize not powerof 2) test and payload check.
+3. Test indirect descriptor feature. For example, the split ring mergeable inorder path use non-indirect descriptor, the 2000,2000,2000,2000 chain packets will need 4 consequent ring, still need one ring put header.
+the split ring mergeable path use indirect descriptor, the 2000,2000,2000,2000 chain packets will only occupy one ring.
+
+IOMMU impact:
+If iommu off, idxd can work with iova=pa
+If iommu on, kernel dsa driver only can work with iova=va by program IOMMU, can't use iova=pa(fwd not work due to pkts payload wrong).
+
+Note:
+1.When DMA devices are bound to vfio driver, VA mode is the default and recommended. For PA mode, page by page mapping may
+exceed IOMMU's max capability, better to use 1G guest hugepage.
+2.DPDK local patch that about vhost pmd is needed when testing Vhost asynchronous data path with testpmd, and the suite has not yet been automated.
+
+Prerequisites
+=============
+
+Topology
+--------
+	Test flow: Virtio-user -> Vhost-user -> Testpmd -> Vhost-user -> Virtio-user
+
+General set up
+--------------
+1. Compile DPDK::
+
+	# CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=<dpdk build dir>
+	# ninja -C <dpdk build dir> -j 110
+	For example,
+	CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=x86_64-native-linuxapp-gcc
+	ninja -C x86_64-native-linuxapp-gcc -j 110
+
+2. Get the PCI device ID and DSA device ID of DUT, for example, 0000:4f:00.1 is PCI device ID, 0000:6a:01.0 - 0000:f6:01.0 are DSA device IDs::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -s
+
+	Network devices using kernel driver
+	===================================
+	0000:4f:00.1 'Ethernet Controller E810-C for QSFP 1592' drv=ice unused=vfio-pci
+
+	DMA devices using kernel driver
+	===============================
+	0000:6a:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:6f:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:74:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:79:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:e7:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:ec:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:f1:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+	0000:f6:01.0 'Device 0b25' drv=idxd unused=vfio-pci
+
+Test case
+=========
+
+Common steps
+------------
+1. Bind DSA devices to DPDK vfio-pci driver::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port DSA device id>
+
+	For example, bind 2 DMA devices to vfio-pci driver:
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 0000:e7:01.0 0000:ec:01.0
+
+.. note::
+
+	One DPDK DSA device can create 8 WQ at most. Below is an example, where DPDK DSA device will create one and
+	eight WQ for DSA deivce 0000:e7:01.0 and 0000:ec:01.0. The value of “max_queues” is 1~8:
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 4 -n 4 -a 0000:e7:01.0,max_queues=1 -- -i
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 4 -n 4 -a 0000:ec:01.0,max_queues=8 -- -i
+
+2. Bind DSA devices to kernel idxd driver, and configure Work Queue (WQ)::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd <numDevices * 2>
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q <numWq>
+
+.. note::
+
+	Better to reset WQ when need operate DSA devices that bound to idxd drvier:
+	<dpdk dir># ./drivers/dma/idxd/dpdk_idxd_cfg.py --reset <numDevices * 2>
+	You can check it by 'ls /dev/dsa'
+	numDevices: number of devices, where 0<=numDevices<=7, corresponding to 0000:6a:01.0 - 0000:f6:01.0
+	numWq: Number of workqueues per DSA endpoint, where 1<=numWq<=8
+
+	For example, bind 2 DMA devices to idxd driver and configure WQ:
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 1 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 4 2
+	Check WQ by 'ls /dev/dsa' and can find "wq0.0 wq2.0 wq2.1 wq2.2 wq2.3"
+
+Test Case 1: VM2VM vhost-user/virtio-user split ring non-mergeable path and multi-queues payload check with dsa dpdk driver
+----------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user split ring non-mergeable path 
+and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 2 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=2 -a 0000:ec:01.0,max_queues=2 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:e7:01.0-q1]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	 <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Relaunch vhost with pa mode by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=4 -a 0000:ec:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q3,lcore2@0000:ec:01.0-q3]
+
+9. Rerun step 4.
+
+10. Virtio-user0 and send packets again::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 2: VM2VM vhost-user/virtio-user split ring inorder non-mergeable path and multi-queues payload check with dsa dpdk driver
+-------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user split ring inorder
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 3 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0 f1:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=2 -a 0000:ec:01.0,max_queues=2 -a 0000:f1:01.0,max_queues=2 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q0,lcore2@0000:f1:01.0-q0]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Relaunch vhost with pa mode by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0 -a 0000:ec:01.0,max_queues=4 -a 0000:f1:01.0,max_queues=4 -a 0000:f6:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q2,lcore2@0000:ec:01.0-q2,lcore2@0000:f1:01.0-q2]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 3: VM2VM vhost-user/virtio-user split ring inorder mergeable path and multi-queues non-indirect descriptor with dsa dpdk driver
+------------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid and non-indirect descriptor after packets forwarding in vhost-user/virtio-user
+split ring inorder mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 4 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0 f1:01.0 f6:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=1 -a 0000:ec:01.0,max_queues=2 -a 0000:f1:01.0,max_queues=3 -a 0000:f6:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q1,lcore2@0000:f1:01.0-q2,lcore2@0000:f6:01.0-q3]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost, then quit pdump and three testpmd, about split virtqueue inorder mergeable path, it use the non-indirect descriptors, the 8k length pkt will occupies 5 ring:2000,2000,2000,2000 will need 4 consequent ring,
+still need one ring put header. So check 504 packets and 48128 bytes received by virtio-user1 and 502 packets with 64 length and 2 packets with 8K length in pdump-virtio-rx.pcap.
+
+7. Relaunch vhost with pa mode by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=1 -a 0000:ec:01.0,max_queues=2 -a 0000:f1:01.0,max_queues=3 -a 0000:f6:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q1,lcore2@0000:f1:01.0-q2,lcore2@0000:f6:01.0-q3]
+
+8. Rerun step 3-6.
+
+Test Case 4: VM2VM vhost-user/virtio-user split ring mergeable path and multi-queues indirect descriptor with dsa dpdk driver
+-------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid and indirect descriptor after packets forwarding in vhost-user/virtio-user
+split ring mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 4 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0 f1:01.0 f6:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=1 -a 0000:ec:01.0,max_queues=2 -a 0000:f1:01.0,max_queues=3 -a 0000:f6:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q1,lcore2@0000:f1:01.0-q2,lcore2@0000:f6:01.0-q3]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=0,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost, then quit pdump and three testpmd, about split virtqueue inorder mergeable path, it use the indirect descriptors, the 8k length pkt will just occupies one ring.
+So check 512 packets and 112128 bytes received by virtio-user1 and 502 packets with 64 length and 10 packets with 8K length in pdump-virtio-rx.pcap.
+
+7. Relaunch vhost with pa mode by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=1 -a 0000:ec:01.0,max_queues=2 -a 0000:f1:01.0,max_queues=3 -a 0000:f6:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q1,lcore2@0000:f1:01.0-q2,lcore2@0000:f6:01.0-q3]
+
+8. Rerun step 3-6.
+
+Test Case 5: VM2VM vhost-user/virtio-user packed ring non-mergeable path and multi-queues payload check with dsa dpdk driver
+--------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring 
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 3 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0 f1:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0 -a 0000:ec:01.0 -a 0000:f1:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q1,lcore2@0000:f1:01.0-q2]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+	--no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost testpmd,  quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Relaunch vhost with iova=pa by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0 -a 0000:ec:01.0 -a 0000:f1:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q4,lcore2@0000:ec:01.0-q5,lcore2@0000:f1:01.0-q6]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 6: VM2VM vhost-user/virtio-user packed ring inorder non-mergeable path and multi-queues payload check with dsa dpdk driver
+-------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring inorder
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 4 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 f1:01.0 f6:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=2 -a 0000:ec:01.0,max_queues=2 -a 0000:f1:01.0,max_queues=2 -a 0000:f6:01.0,max_queues=2 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q0,lcore2@0000:f1:01.0-q1,lcore2@0000:f6:01.0-q1]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Relaunch vhost with iova=pa by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0 -a 0000:ec:01.0 -a 0000:f1:01.0 -a 0000:f6:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q5,lcore2@0000:ec:01.0-q6,lcore2@0000:f1:01.0-q5,lcore2@0000:f6:01.0-q6]
+
+9. Rerun step 4.
+
+10. virtio-user0 send packets::
+
+	testpmd>stop
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+
+11. Rerun step 6.
+
+Test Case 7: VM2VM vhost-user/virtio-user packed ring mergeable path and multi-queues payload check with dsa dpdk driver
+--------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring 
+mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 2 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0 
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0,max_queues=4 -a 0000:ec:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:e7:01.0-q1,lcore2@0000:e7:01.0-q2,lcore2@0000:ec:01.0-q0,lcore2@0000:ec:01.0-q1]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+	--no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+6. Start vhost testpmd,  quit pdump and check virtio-user1 check 502 packets and 279232 bytes and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Relaunch vhost with iova=pa by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0 -a 0000:ec:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q6,lcore2@0000:e7:01.0-q7,lcore2@0000:ec:01.0-q2,lcore2@0000:ec:01.0-q3,lcore2@0000:ec:01.0-q4]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 8: VM2VM vhost-user/virtio-user packed ring inorder mergeable path and multi-queues payload check with dsa dpdk driver
+----------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring inorder
+mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 8 dsa device to vfio-pci like common step 1::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0 e7:01.0 ec:01.0 f1:01.0 f6:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 6a:01.0 6f:01.0 74:01.0 79:01.0 e7:01.0 ec:01.0 f1:01.0 f6:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:6a:01.0 -a 0000:6f:01.0 -a 0000:74:01.0 -a 0000:79:01.0 -a 0000:e7:01.0 -a 0000:ec:01.0 -a 0000:f1:01.0 -a 0000:f6:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:6a:01.0-q0,lcore2@0000:6f:01.0-q1,lcore2@0000:74:01.0-q2,lcore2@0000:79:01.0-q3,lcore2@0000:e7:01.0-q4,lcore2@0000:ec:01.0-q5,lcore2@0000:f1:01.0-q6,lcore2@0000:f6:01.0-q7]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 502 packets and 279232 bytes and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Relaunch vhost with iova=pa by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:6a:01.0 -a 0000:6f:01.0 -a 0000:74:01.0 -a 0000:79:01.0 -a 0000:e7:01.0 -a 0000:ec:01.0 -a 0000:f1:01.0 -a 0000:f6:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:6a:01.0-q1,lcore2@0000:6f:01.0-q2,lcore2@0000:74:01.0-q3,lcore2@0000:79:01.0-q4,lcore2@0000:e7:01.0-q5,lcore2@0000:ec:01.0-q6,lcore2@0000:f1:01.0-q7,lcore2@0000:f6:01.0-q7]
+
+9. Rerun step 4.
+
+10. virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 9: VM2VM vhost-user/virtio-user packed ring vectorized-tx path and multi-queues indirect descriptor with dsa dpdk driver
+-----------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid and indirect descriptor after packets forwarding in vhost-user/virtio-user
+packed ring vectorized-tx path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk driver. 
+Both iova as VA and PA mode test.
+
+1. bind 4 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 6a:01.0 6f:01.0 74:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:6a:01.0 -a 0000:6f:01.0 -a 0000:74:01.0 -a 0000:79:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0;txq1],dma_ring_size=2048' --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1],dma_ring_size=2048' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
+	--lcore-dma=[lcore2@0000:6a:01.0-q0,lcore2@0000:6f:01.0-q1,lcore2@0000:74:01.0-q2,lcore2@0000:79:01.0-q3]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 --force-max-simd-bitwidth=512 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set fwd rxonly
+	set verbose 1
+	testpmd>start
+
+4. Attach pdump secondary process to primary process by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=*,rx-dev=./pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send 8k length packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --force-max-simd-bitwidth=512 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost, then quit pdump and three testpmd, about packed virtqueue vectorized-tx path, it use the indirect descriptors, the 8k length pkt will just occupies one ring.
+So check 512 packets and 112128 bytes received by virtio-user1 and 502 packets with 64 length and 10 packets with 8K length in pdump-virtio-rx.pcap.
+
+7.Relaunch vhost with iova=pa by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:6a:01.0 -a 0000:6f:01.0 -a 0000:74:01.0 -a 0000:79:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0;txq1],dma_ring_size=2048' --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1],dma_ring_size=2048' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
+	--lcore-dma=[lcore2@0000:6a:01.0-q1,lcore2@0000:6f:01.0-q2,lcore2@0000:74:01.0-q3,lcore2@0000:79:01.0-q4]
+
+8. Rerun step 3-6.
+
+Test Case 10: VM2VM vhost-user/virtio-user split ring non-mergeable path and multi-queues payload check with dsa kernel driver
+--------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user split ring 
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver. 
+
+1. bind 1 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py --reset xx
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 4 0
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq0.1]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	 <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.2,lcore2@wq0.3]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 11: VM2VM vhost-user/virtio-user split ring inorder non-mergeable path and multi-queues payload check with dsa kernel driver
+----------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user split ring inorder
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver. 
+
+1. bind 3 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq2.1,lcore2@wq4.2]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.3,lcore2@wq2.4,lcore2@wq4.5]
+
+9. Rerun step 4.
+
+10. virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 12: VM2VM vhost-user/virtio-user split ring inorder mergeable path and multi-queues non-indirect descriptor with dsa kernel driver
+---------------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid and non-indirect descriptor after packets forwarding in vhost-user/virtio-user
+split ring inorder mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver. 
+
+1. bind 4 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 6
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq2.1,lcore2@wq4.2,lcore2@wq6.3]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost, then quit pdump and three testpmd, about split virtqueue inorder mergeable path, it use the direct descriptors, the 8k length pkt will occupies 5 ring:2000,2000,2000,2000 will need 4 consequent ring,
+still need one ring put header. So check 504 packets and 48128 bytes received by virtio-user1 and 502 packets with 64 length and 2 packets with 8K length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@wq0.3,lcore2@wq2.4,lcore2@wq4.3,lcore2@wq6.4]
+
+9. Rerun step 4.
+
+10. virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 13: VM2VM vhost-user/virtio-user split ring mergeable path and multi-queues indirect descriptor with dsa kernel driver
+----------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid and indirect descriptor after packets forwarding in vhost-user/virtio-user
+split ring mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver. 
+
+1. bind 4 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 6
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq2.1,lcore2@wq4.2,lcore2@wq6.3]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=0,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost, then quit pdump and three testpmd, about split virtqueue inorder mergeable path, it use the indirect descriptors, the 8k length pkt will just occupies one ring.
+So check 512 packets and 112128 bytes received by virtio-user1 and 502 packets with 64 length and 10 packets with 8K length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx --lcore-dma=[lcore2@wq0.3,lcore2@wq2.4,lcore2@wq4.3,lcore2@wq6.4]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 14: VM2VM vhost-user/virtio-user packed ring non-mergeable path and multi-queues payload check with dsa kernel driver
+----------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring 
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 3 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq2.1,lcore2@wq4.2]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+	--no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost testpmd,  quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.4,lcore2@wq2.5,lcore2@wq4.6]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 15: VM2VM vhost-user/virtio-user packed ring inorder non-mergeable path and multi-queues payload check with dsa kernel driver
+----------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring inorder
+non-mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 4 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 6
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq2.0,lcore2@wq4.1,lcore2@wq6.1]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 566 and RX-bytes is 486016 and 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.5,lcore2@wq2.6,lcore2@wq4.5,lcore2@wq6.6]
+
+9. Rerun step 4.
+
+10. virtio-user0 send packets::
+
+	testpmd>stop
+	testpmd>set burst 1
+	testpmd>set txpkts 64,128,256,512
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 64
+	testpmd>start tx_first 1
+
+11. Rerun step 6.
+
+Test Case 16: VM2VM vhost-user/virtio-user packed ring mergeable path and multi-queues payload check with dsa kernel driver
+-----------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring 
+mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 2 dsa device to idxd::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq0.1,lcore2@wq0.2,lcore2@wq2.3,lcore2@wq2.4]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+	--no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+6. Start vhost testpmd,  quit pdump and check virtio-user1 check 502 packets and 279232 bytes and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.6,lcore2@wq0.7,lcore2@wq2.3,lcore2@wq2.4,lcore2@wq2.5]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 17: VM2VM vhost-user/virtio-user packed ring inorder mergeable path and multi-queues payload check with dsa kernel driver
+------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring inorder
+mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 8 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0 e7:01.0 ec:01.0 f1:01.0 f6:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0 79:01.0 e7:01.0 ec:01.0 f1:01.0 f6:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 6
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 8
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 10
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 12
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 14
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.0,lcore2@wq2.1,lcore2@wq4.2,lcore2@wq6.3,lcore2@wq8.4,lcore2@wq10.5,lcore2@wq12.6,lcore2@wq14.7]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 502 packets and 279232 bytes and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@wq0.7,lcore2@wq2.6,lcore2@wq4.5,lcore2@wq6.4,lcore2@wq8.3,lcore2@wq10.2,lcore2@wq12.1,lcore2@wq14.0]
+
+9. Rerun step 4.
+
+10. virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+11. Rerun step 6.
+
+Test Case 18: VM2VM vhost-user/virtio-user packed ring vectorized-tx path and multi-queues indirect descriptor with dsa kernel driver
+-------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid and indirect descriptor after packets forwarding in vhost-user/virtio-user
+packed ring vectorized-tx path and multi-queues when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 4 dsa device to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0 79:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 4
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 6
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0;txq1],dma_ring_size=2048' --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1],dma_ring_size=2048' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
+	--lcore-dma=[lcore11@wq0.0,lcore11@wq2.1,lcore11@wq4.2,lcore11@wq6.3]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 --force-max-simd-bitwidth=512 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=*,rx-dev=./pdump-virtio-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send 8k length packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --force-max-simd-bitwidth=512 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256
+
+	testpmd>set burst 1
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>start tx_first 7
+	testpmd>stop
+	testpmd>set txpkts 2000,2000,2000,2000
+	testpmd>start tx_first 1
+	testpmd>stop
+
+6. Start vhost, then quit pdump and three testpmd, about packed virtqueue vectorized-tx path, it use the indirect descriptors, the 8k length pkt will just occupies one ring.
+So check 512 packets and 112128 bytes received by virtio-user1 and 502 packets with 64 length and 10 packets with 8K length in pdump-virtio-rx.pcap.
+
+Test Case 19: VM2VM vhost-user/virtio-user packed ring inorder mergeable path and multi-queues payload check with dsa dpdk and kernel driver
+---------------------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring inorder
+mergeable path and multi-queues when vhost uses the asynchronous enqueue operations with dsa dpdk and kernel driver.
+
+1. bind 2 dsa device to vfio-pci and 2 dsa port to idxd like common step 1-2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	<dpdk dir># ./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 e7:01.0 ec:01.0
+	<dpdk dir># ./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 8 2
+	ls /dev/dsa #check wq configure success
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec:01.0
+
+2. Launch vhost by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 -a 0000:e7:01.0 -a 0000:ec:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q0,lcore2@0000:ec:01.0-q1,lcore2@wq0.0,lcore2@wq2.0]
+
+3. Launch virtio-user1 by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --no-pci --file-prefix=virtio1 \
+	--vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set fwd rxonly
+	testpmd>start
+
+4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=/tmp/dsa-va-rx.pcap,mbuf-size=8000'
+
+5. Launch virtio-user0 and send packets::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio \
+	--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+	-- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 502 packets and 279232 bytes and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
+
+7. Clear virtio-user1 port stats::
+
+	testpmd>stop
+	testpmd>clear port stats all
+	testpmd>start
+
+8. Quit and relaunch vhost with diff dsa channel by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-2 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0;txq1]' \
+	--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0;txq1]' \
+	--iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx --lcore-dma=[lcore2@0000:e7:01.0-q2,lcore2@0000:e7:01.0-q5,lcore2@0000:ec:01.0-q4,lcore2@wq0.1,lcore2@wq0.3]
+
+9. Rerun step 4.
+
+10. Virtio-user0 send packets::
+
+	testpmd>set burst 1
+	testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 27
+	testpmd>stop
+	testpmd>set burst 32
+	testpmd>set txpkts 64
+	testpmd>start tx_first 7
+	testpmd>stop
+
+11. Rerun step 6.