diff mbox series

[V1,3/7] test_plans/loopback_virtio_user_server_mode_dsa_test_plan: add loopback_virtio_user_server_mode_dsa testplan

Message ID 20220507095907.311000-1-weix.ling@intel.com (mailing list archive)
State Accepted
Headers
Series add 6 das related testplan |

Commit Message

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

Signed-off-by: Wei Ling <weix.ling@intel.com>
---
 ..._virtio_user_server_mode_dsa_test_plan.rst | 820 ++++++++++++++++++
 1 file changed, 820 insertions(+)
 create mode 100644 test_plans/loopback_virtio_user_server_mode_dsa_test_plan.rst
diff mbox series

Patch

diff --git a/test_plans/loopback_virtio_user_server_mode_dsa_test_plan.rst b/test_plans/loopback_virtio_user_server_mode_dsa_test_plan.rst
new file mode 100644
index 00000000..ad06a2a7
--- /dev/null
+++ b/test_plans/loopback_virtio_user_server_mode_dsa_test_plan.rst
@@ -0,0 +1,820 @@ 
+.. 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.
+
+=======================================================================
+Loopback vhost-user/virtio-user server mode 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 loopback virtio-user topology.
+1. Virtio-user server mode is a feature to enable virtio-user as the server, vhost as the client, thus after vhost-user is killed then relaunched,
+virtio-user can reconnect back to vhost-user again; at another hand, virtio-user also can reconnect back to vhost-user after virtio-user is killed.
+This feature test need cover different rx/tx paths with virtio 1.0 and virtio 1.1, includes split ring mergeable, non-mergeable, inorder mergeable,
+inorder non-mergeable, vector_rx path and packed ring mergeable, non-mergeable, inorder non-mergeable, inorder mergeable, vectorized path.
+2. Check payload valid after packets forwarding many times.
+3. Stress test with large chain packets.
+
+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.
+
+Topology
+--------
+	Test flow: 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
+
+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: loopback split ring server mode large chain packets stress test with dsa dpdk driver
+---------------------------------------------------------------------------------------------------
+This is a stress test case about forwading large chain packets in loopback vhost-user/virtio-user split ring with server mode 
+when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. Bind 1 dsa device to vfio-pci like common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci f6:01.0
+
+2. Launch vhost::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 2-3 --file-prefix=vhost -a 0000:f6:01.0,max_queues=1 \
+	--vdev 'net_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' \
+	--iova=va -- -i --nb-cores=1 --txd=1024 --rxd=1024 --mbuf-size=45535 --lcore-dma=[lcore3@0000:f6:01.0-q0]
+
+3. launch virtio and start testpmd::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4  --file-prefix=testpmd0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,queue_size=2048,server=1 \
+	-- -i --rxq=1 --txq=1 --txd=2048 --rxd=2048 --nb-cores=1
+	testpmd>start
+
+4. Send large pkts from vhost and check the stats::
+
+	testpmd>set txpkts 45535,45535,45535,45535,45535
+	testpmd>start tx_first 32
+	testpmd>show port stats all
+
+5. Stop and quit vhost testpmd and relaunch vhost with pa mode by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 2-3 --file-prefix=vhost -a 0000:f6:01.0,max_queues=4 \
+	--vdev 'net_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' \
+	--iova=pa -- -i --nb-cores=1 --txd=1024 --rxd=1024 --mbuf-size=45535 --lcore-dma=[lcore3@0000:f6:01.0-q0]
+
+6. rerun step 4.
+
+Test Case 2: loopback packed ring server mode large chain packets stress test with dsa dpdk driver
+----------------------------------------------------------------------------------------------------
+This is a stress test case about forwading large chain packets in loopback vhost-user/virtio-user packed ring with server mode
+when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. Bind 1 dsa port to vfio-pci as common step 1::
+
+	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci f6:01.0
+
+2. Launch vhost::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 -a 0000:6f:01.0,max_queues=1 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' \
+	--iova=va -- -i --nb-cores=1 --mbuf-size=45535 --lcore-dma=[lcore3@0000:6f:01.0-q0]
+
+3. launch virtio and start testpmd::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4  --file-prefix=testpmd0 --no-pci  \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,packed_vq=1,queue_size=2048,server=1 \
+	-- -i --rxq=1 --txq=1 --txd=2048 --rxd=2048 --nb-cores=1
+	testpmd>start
+
+4. Send large pkts from vhost and check the stats::
+
+	testpmd>set txpkts 45535,45535,45535,45535,45535
+	testpmd>start tx_first 32
+	testpmd>show port stats all
+
+5. Stop and quit vhost testpmd and relaunch vhost with pa mode by below command::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 -a 0000:6f:01.0,max_queues=1 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' \
+	--iova=va -- -i --nb-cores=1 --mbuf-size=45535 --lcore-dma=[lcore3@0000:6f:01.0-q0]
+
+6. rerun step 3.
+
+Test Case 3: loopback split ring all path server mode and multi-queues payload check with dsa dpdk driver
+-----------------------------------------------------------------------------------------------------------
+This case tests the payload is valid after forwading large chain packets in loopback vhost-user/virtio-user split ring
+all path multi-queues with server mode when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 3 dsa port to vfio-pci like common step 1::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0
+	./usertools/dpdk-devbind.py -b vfio-pci 6a:01.0 6f:01.0 74:01.0
+
+2. Launch vhost::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:6a:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@0000:6a:01.0-q0,lcore12@0000:6a:01.0-q0,lcore13@0000:6a:01.0-q1,lcore13@0000:6a:01.0-q2,lcore14@0000:6a:01.0-q1,lcore14@0000:6a:01.0-q2,lcore15@0000:6a:01.0-q1,lcore15@0000:6a:01.0-q2]
+
+3. Launch virtio-user with split ring mergeable inorder path::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	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=virtio-user0 -- \
+	--pdump 'device_id=net_virtio_user0,queue=0,rx-dev=./pdump-virtio-rx-0.pcap,mbuf-size=8000' \
+	--pdump 'device_id=net_virtio_user0,queue=3,rx-dev=./pdump-virtio-rx-3.pcap,mbuf-size=8000'
+
+5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,64,64,2000,2000,2000
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> show port stats all
+	testpmd> stop
+
+6. Quit pdump, check all the packets length are 6192 Byte in the pcap file and the payload in receive packets are same.
+
+7. Quit and relaunch vhost and rerun step 4-6.
+
+8. Quit and relaunch virtio with split ring mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+9. Rerun steps 4-7.
+
+10. Quit and relaunch virtio with split ring non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,server=1 \
+	-- -i --enable-hw-vlan-strip --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+11. Rerun step 4.
+
+12. Send pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,128,256,512
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> show port stats all
+	testpmd> stop
+
+13. Quit pdump, check all the packets length are 960 Byte in the pcap file and the payload in receive packets are same.
+
+14. Quit and relaunch vhost and rerun step 11-13.
+
+15. Quit and relaunch virtio with split ring inorder non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+16. Rerun step 11-14.
+
+17. Quit and relaunch virtio with split ring vectorized path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,vectorized=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+18. Rerun step 11-14.
+
+19. Quit and relaunch vhost with diff channel::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:6a:01.0 -a 0000:6f:01.0 -a 0000:74:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@0000:6a:01.0-q0,lcore12@0000:6a:01.0-q0,lcore13@0000:6f:01.0-q1,lcore13@0000:74:01.0-q2,lcore14@0000:6f:01.0-q1,lcore14@0000:74:01.0-q2,lcore15@0000:6f:01.0-q1,lcore15@0000:74:01.0-q2]
+
+20. Rerun steps 11-14.
+
+21. Quit and relaunch vhost w/ iova=pa::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:6a:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \
+	--iova=pa -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@0000:6a:01.0-q0,lcore12@0000:6a:01.0-q0,lcore13@0000:6a:01.0-q1,lcore13@0000:6a:01.0-q2,lcore14@0000:6a:01.0-q1,lcore14@0000:6a:01.0-q2,lcore15@0000:6a:01.0-q1,lcore15@0000:6a:01.0-q2]
+
+22. Rerun steps 11-14.
+
+Test Case 4: loopback packed ring all path server mode and multi-queues payload check with dsa dpdk driver
+------------------------------------------------------------------------------------------------------------
+This case tests the payload is valid after forwading large chain packets in loopback vhost-user/virtio-user packed ring
+all path multi-queues with server mode when vhost uses the asynchronous enqueue operations with dsa dpdk driver. Both iova as VA and PA mode test.
+
+1. bind 8 dsa port to vfio-pci like common step 1::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	./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
+	./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::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:6a:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@0000:6a:01.0-q0,lcore11@0000:6a:01.0-q7,lcore12@0000:6a:01.0-q1,lcore12@0000:6a:01.0-q2,lcore12@0000:6a:01.0-q3,lcore13@0000:6a:01.0-q2,lcore13@0000:6a:01.0-q3,lcore13@0000:6a:01.0-q4,lcore14@0000:6a:01.0-q2,lcore14@0000:6a:01.0-q3,lcore14@0000:6a:01.0-q4,lcore14@0000:6a:01.0-q5,lcore15@0000:6a:01.0-q0,lcore15@0000:6a:01.0-q1,lcore15@0000:6a:01.0-q2,lcore15@0000:6a:01.0-q3,lcore15@0000:6a:01.0-q4,lcore15@0000:6a:01.0-q5,lcore15@0000:6a:01.0-q6,lcore15@0000:6a:01.0-q7]
+
+3. Launch virtio-user with packed ring mergeable inorder path::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	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=virtio-user0 -- \
+	--pdump 'device_id=net_virtio_user0,queue=0,rx-dev=./pdump-virtio-rx-0.pcap,mbuf-size=8000' \
+	--pdump 'device_id=net_virtio_user0,queue=3,rx-dev=./pdump-virtio-rx-3.pcap,mbuf-size=8000'
+
+5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,64,64,2000,2000,2000
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> show port stats all
+	testpmd> stop
+
+6. Quit pdump, check all the packets length are 6192 Byte in the pcap file and the payload in receive packets are same.
+
+7. Quit and relaunch vhost and rerun step 4-6.
+
+8. Quit and relaunch virtio with packed ring mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+9. Rerun steps 4-7.
+
+10. Quit and relaunch virtio with packed ring non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+11. Rerun step 4.
+
+12. Send pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,128,256,512
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> show port stats all
+	testpmd> stop
+
+13. Quit pdump, check all the packets length are 960 Byte in the pcap file and the payload in receive packets are same.
+
+14. Quit and relaunch vhost and rerun step 11-13.
+
+15. Quit and relaunch virtio with packed ring inorder non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+16. Rerun step 11-14.
+
+17. Quit and relaunch virtio with packed ring vectorized path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci --force-max-simd-bitwidth=512 \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,vectorized=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+18. Rerun step 11-14.
+
+19. Quit and relaunch virtio with packed ring vectorized path and ring size is not power of 2 as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci --force-max-simd-bitwidth=512 \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,vectorized=1,queue_size=1025,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1025 --rxd=1025
+	testpmd>set fwd csum
+	testpmd>start
+
+20. Rerun step 11-14.
+
+21. Quit and relaunch vhost with diff channel::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -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=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@0000:6a:01.0-q0,lcore11@0000:f6:01.0-q7,lcore12@0000:6f:01.0-q1,lcore12@0000:74:01.0-q2,lcore12@0000:79:01.0-q3,lcore13@0000:74:01.0-q2,lcore13@0000:79:01.0-q3,lcore13@0000:e7:01.0-q4,lcore14@0000:74:01.0-q2,lcore14@0000:79:01.0-q3,lcore14@0000:e7:01.0-q4,lcore14@0000:ec:01.0-q5,lcore15@0000:6a:01.0-q0,lcore15@0000:6f:01.0-q1,lcore15@0000:74:01.0-q2,lcore15@0000:79:01.0-q3,lcore15@0000:e7:01.0-q4,lcore15@0000:ec:01.0-q5,lcore15@0000:f1:01.0-q6,lcore15@0000:f6:01.0-q7]
+
+22. Rerun steps 11-14.
+
+23. Quit and relaunch vhost w/ iova=pa::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:6a:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \
+	--iova=pa -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@0000:6a:01.0-q0,lcore11@0000:6a:01.0-q7,lcore12@0000:6a:01.0-q1,lcore12@0000:6a:01.0-q2,lcore12@0000:6a:01.0-q3,lcore13@0000:6a:01.0-q2,lcore13@0000:6a:01.0-q3,lcore13@0000:6a:01.0-q4,lcore14@0000:6a:01.0-q2,lcore14@0000:6a:01.0-q3,lcore14@0000:6a:01.0-q4,lcore14@0000:6a:01.0-q5,lcore15@0000:6a:01.0-q0,lcore15@0000:6a:01.0-q1,lcore15@0000:6a:01.0-q2,lcore15@0000:6a:01.0-q3,lcore15@0000:6a:01.0-q4,lcore15@0000:6a:01.0-q5,lcore15@0000:6a:01.0-q6,lcore15@0000:6a:01.0-q7]
+
+24. Rerun steps 3-6.
+
+Test Case 5: loopback split ring server mode large chain packets stress test with dsa kernel driver
+---------------------------------------------------------------------------------------------------
+This is a stress test case about forwading large chain packets in loopback vhost-user/virtio-user split ring with server mode
+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
+	./usertools/dpdk-devbind.py -u 6a:01.0
+	./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::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 2-3 --file-prefix=vhost \
+	--vdev 'net_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' \
+	--iova=va -- -i --nb-cores=1 --txd=1024 --rxd=1024 --mbuf-size=45535 --lcore-dma=[lcore3@wq0.2]
+
+3. launch virtio and start testpmd::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4  --file-prefix=testpmd0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,queue_size=2048,server=1 \
+	-- -i --rxq=1 --txq=1 --txd=2048 --rxd=2048 --nb-cores=1
+	testpmd>start
+
+4. Send large pkts from vhost::
+
+	testpmd>set txpkts 45535,45535,45535,45535,45535
+	testpmd>start tx_first 32
+	testpmd>show port stats all
+
+Test Case 6: loopback packed ring server mode large chain packets stress test with dsa kernel driver
+-----------------------------------------------------------------------------------------------------
+This is a stress test case about forwading large chain packets in loopback vhost-user/virtio-user packed ring with server mode
+when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. Bind 1 dsa port to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	./usertools/dpdk-devbind.py -u 6a:01.0
+	./usertools/dpdk-devbind.py -b idxd 6a:01.0
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 1 0
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' \
+	--iova=va -- -i --nb-cores=1 --mbuf-size=45535 --lcore-dma=[lcore3@wq0.0]
+
+3. launch virtio and start testpmd::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4  --file-prefix=testpmd0 --no-pci  \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,packed_vq=1,queue_size=2048,server=1 \
+	-- -i --rxq=1 --txq=1 --txd=2048 --rxd=2048 --nb-cores=1
+	testpmd>start
+
+4. Send large pkts from vhost and check the stats::
+
+	testpmd>set txpkts 45535,45535,45535,45535,45535
+	testpmd>start tx_first 32
+	testpmd>show port stats all
+
+Test Case 7: loopback split ring all path server mode and multi-queues payload check with dsa kernel driver
+-------------------------------------------------------------------------------------------------------------
+This case tests the payload is valid after forwading large chain packets in loopback vhost-user/virtio-user split ring
+all path multi-queues with server mode when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 3 dsa port to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0
+	./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::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@wq0.0,lcore12@wq0.0,lcore13@wq0.1,lcore13@wq0.2,lcore14@wq0.1,lcore14@wq0.2,lcore15@wq0.1,lcore15@wq0.2]
+
+3. Launch virtio-user with split ring mergeable inorder path::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	 testpmd>set fwd csum
+	 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=virtio-user0 -- \
+	--pdump 'device_id=net_virtio_user0,queue=0,rx-dev=./pdump-virtio-rx-0.pcap,mbuf-size=8000' \
+	--pdump 'device_id=net_virtio_user0,queue=3,rx-dev=./pdump-virtio-rx-3.pcap,mbuf-size=8000'
+
+5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,64,64,2000,2000,2000
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> stop
+
+6. Quit pdump, check all the packets length are 6192 Byte in the pcap file and the payload in receive packets are same.
+
+7. Quit and relaunch vhost and rerun step 4-6.
+
+8. Quit and relaunch virtio with split ring mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+9. Rerun steps 4-7.
+
+10. Quit and relaunch virtio with split ring non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,server=1 \
+	-- -i --enable-hw-vlan-strip --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+11. Rerun step 4.
+
+12. Send pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,128,256,512
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> stop
+
+13. Quit pdump, check all the packets length are 960 Byte in the pcap file and the payload in receive packets are same.
+
+14. Quit and relaunch vhost and rerun step 11-13.
+
+15. Quit and relaunch virtio with split ring inorder non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+16. Rerun step 11-14.
+
+17. Quit and relaunch virtio with split ring vectorized path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,vectorized=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+18. Rerun step 11-14.
+
+19. Quit and relaunch vhost with diff channel::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:6a:01.0 -a 0000:6f:01.0 -a 0000:74:01.0 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@wq0.0,lcore12@wq0.0,lcore13@wq2.1,lcore13@wq4.2,lcore14@wq2.1,lcore14@wq4.2,lcore15@wq2.1,lcore15@wq4.2]
+
+20. Rerun steps 11-14.
+
+Test Case 8: loopback packed ring all path server mode and multi-queues payload check with dsa kernel driver
+-------------------------------------------------------------------------------------------------------------
+This case tests the payload is valid after forwading large chain packets in loopback vhost-user/virtio-user packed ring
+all path multi-queues with server mode when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 8 dsa port to idxd like common step 2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	./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
+	./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::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@wq0.0,lcore11@wq0.7,lcore12@wq0.1,lcore12@wq0.2,lcore12@wq0.3,lcore13@wq0.2,lcore13@wq0.3,lcore13@wq0.4,lcore14@wq0.2,lcore14@wq0.3,lcore14@wq0.4,lcore14@wq0.5,lcore15@wq0.0,lcore15@wq0.1,lcore15@wq0.2,lcore15@wq0.3,lcore15@wq0.4,lcore15@wq0.5,lcore15@wq0.6,lcore15@wq0.7]
+
+3. Launch virtio-user with packed ring mergeable inorder path::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	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=virtio-user0 -- \
+	--pdump 'device_id=net_virtio_user0,queue=0,rx-dev=./pdump-virtio-rx-0.pcap,mbuf-size=8000' \
+	--pdump 'device_id=net_virtio_user0,queue=3,rx-dev=./pdump-virtio-rx-3.pcap,mbuf-size=8000'
+
+5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,64,64,2000,2000,2000
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> stop
+
+6. Quit pdump, check all the packets length are 6192 Byte in the pcap file and the payload in receive packets are same.
+
+7. Quit and relaunch vhost and rerun step 4-6.
+
+8. Quit and relaunch virtio with packed ring mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+9. Rerun steps 4-7.
+
+10. Quit and relaunch virtio with packed ring non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+11. Rerun step 4.
+
+12. Send pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	testpmd> set fwd csum
+	testpmd> set txpkts 64,128,256,512
+	testpmd> set burst 1
+	testpmd> start tx_first 1
+	testpmd> stop
+
+13. Quit pdump, check all the packets length are 960 Byte in the pcap file and the payload in receive packets are same.
+
+14. Quit and relaunch vhost and rerun step 11-13.
+
+15. Quit and relaunch virtio with packed ring inorder non-mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+16. Rerun step 11-14.
+
+17. Quit and relaunch virtio with packed ring vectorized path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci --force-max-simd-bitwidth=512 \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,vectorized=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+18. Rerun step 11-14.
+
+19. Quit and relaunch virtio with packed ring vectorized path and ring size is not power of 2 as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5-6 -n 4 --file-prefix=virtio-user0 --no-pci --force-max-simd-bitwidth=512 \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,vectorized=1,queue_size=1025,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1025 --rxd=1025
+	testpmd>set fwd csum
+	testpmd>start
+
+20. Rerun step 11-14.
+
+21. Quit and relaunch vhost with diff channel::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \
+	--iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore11@wq0.0,lcore11@wq14.7,lcore12@wq2.1,lcore12@wq4.2,lcore12@wq6.3,lcore13@wq4.2,lcore13@wq6.3,lcore13@wq8.4,lcore14@wq4.2,lcore14@wq6.3,lcore14@wq8.4,lcore14@wq10.5,lcore15@wq0.0,lcore15@wq2.1,lcore15@wq4.2,lcore15@wq6.3,lcore15@wq8.4,lcore15@wq10.5,lcore15@wq12.6,lcore15@wq14.7]
+
+22. Rerun steps 3-6.
+
+Test Case 9: loopback split and packed ring server mode multi-queues and mergeable path payload check with dsa dpdk and kernel driver
+--------------------------------------------------------------------------------------------------------------------------------------
+This case tests the payload is valid after forwading large chain packets in loopback vhost-user/virtio-user split and packed ring
+multi-queues with server mode when vhost uses the asynchronous enqueue operations with dsa kernel driver.
+
+1. bind 4 dsa device to idxd and 2 dsa device to vfio-pci like common step 1-2::
+
+	ls /dev/dsa #check wq configure, reset if exist
+	./usertools/dpdk-devbind.py -u 6a:01.0 6f:01.0 74:01.0 79:01.0
+	./usertools/dpdk-devbind.py -b idxd 6a:01.0 6f:01.0 74:01.0 79:01.0
+	./usertools/dpdk-devbind.py -b vfio-pci e7:01.0 ec: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 1 2
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 1 4
+	<dpdk dir># ./<dpdk build dir>drivers/dma/idxd/dpdk_idxd_cfg.py -q 1 6
+	ls /dev/dsa #check wq configure success
+
+2. Launch vhost::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 --file-prefix=vhost -a 0000:e7:01.0,max_queues=4 -a 0000:ec:01.0,max_queues=4 \
+	--vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \
+	--iova=va -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \
+	--lcore-dma=[lcore3@wq0.0,lcore3@wq2.0,lcore3@wq4.0,lcore3@wq6.0,lcore3@0000:e7:01.0-q0,lcore3@0000:e7:01.0-q2,lcore3@0000:ec:01.0-q3]
+
+3. Launch virtio-user with split ring mergeable inorder path::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 4-5 -n 4 --file-prefix=virtio-user --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	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=virtio-user -- \
+	--pdump 'device_id=net_virtio_user0,queue=0,rx-dev=/tmp/pdump-virtio-rx-0.pcap,mbuf-size=8000'
+	--pdump 'device_id=net_virtio_user0,queue=3,rx-dev=./pdump-virtio-rx-3.pcap,mbuf-size=8000'
+
+5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets::
+
+	 testpmd>set fwd csum
+	 testpmd>set txpkts 64,64,64,2000,2000,2000
+	 testpmd>set burst 1
+	 testpmd>start tx_first 1
+
+6. Quit pdump and chcek all the packets length is 6192 and the payload of all packets are same in the pcap file.
+
+7. Quit and relaunch vhost and rerun step 4-6.
+
+8. Quit and relaunch virtio with split ring mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 4-5 -n 4 --file-prefix=virtio-user --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+9. Stop vhost and rerun step 4-7.
+
+10. Quit and relaunch virtio with packed ring mergeable inorder path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 4-5 -n 4 --file-prefix=virtio-user --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+11. Stop vhost and rerun step 4-7.
+
+12. Quit and relaunch virtio with packed ring mergeable path as below::
+
+	<dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 4-5 -n 4 --file-prefix=virtio-user --no-pci \
+	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,packed_vq=1,server=1 \
+	-- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024
+	testpmd>set fwd csum
+	testpmd>start
+
+13. Stop vhost and rerun step 4-7.
\ No newline at end of file