diff mbox series

[V4,1/2] test_plans/vm2vm_virtio_user_cbdma_test_plan: modify testplan to test virito dequeue

Message ID 20220816060540.3417993-1-weix.ling@intel.com (mailing list archive)
State Accepted
Headers
Series [V4,1/2] test_plans/vm2vm_virtio_user_cbdma_test_plan: modify testplan to test virito dequeue |

Commit Message

Ling, WeiX Aug. 16, 2022, 6:05 a.m. UTC 
  From DPDK-22.07, virtio support async dequeue for split and packed ring
path, so modify vm2vm_virtio_user_cbdma testplan to test the split and 
packed ring async dequeue feature.

Signed-off-by: Wei Ling <weix.ling@intel.com>
---
 .../vm2vm_virtio_user_cbdma_test_plan.rst     | 1013 ++++++++---------
 1 file changed, 445 insertions(+), 568 deletions(-)

Comments

Tu, Lijuan Aug. 24, 2022, 7:47 a.m. UTC | #1 
On Tue, 16 Aug 2022 02:05:40 -0400, Wei Ling <weix.ling@intel.com> wrote:
> From DPDK-22.07, virtio support async dequeue for split and packed ring
> path, so modify vm2vm_virtio_user_cbdma testplan to test the split and 
> packed ring async dequeue feature.
> 
> Signed-off-by: Wei Ling <weix.ling@intel.com>

Acked-by: Lijuan Tu <lijuan.tu@intel.com>
Series applied, thanks
diff mbox series

Patch

diff --git a/test_plans/vm2vm_virtio_user_cbdma_test_plan.rst b/test_plans/vm2vm_virtio_user_cbdma_test_plan.rst
index 3fd04592..8fd170f9 100644
--- a/test_plans/vm2vm_virtio_user_cbdma_test_plan.rst
+++ b/test_plans/vm2vm_virtio_user_cbdma_test_plan.rst
@@ -1,6 +1,7 @@ 
 .. SPDX-License-Identifier: BSD-3-Clause
    Copyright(c) 2022 Intel Corporation
 
+
 ==================================================
 VM2VM vhost-user/virtio-user with CBDMA test plan
 ==================================================
@@ -10,16 +11,16 @@  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.
+channels and one DMA channel can be shared by multiple vrings at the same time. From DPDK22.07, Vhost enqueue and dequeue 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
 CBDMA channels 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. 
+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.
 
 Note:
@@ -43,24 +44,24 @@  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
+    # CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=static <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=static x86_64-native-linuxapp-gcc
+    ninja -C x86_64-native-linuxapp-gcc -j 110
 
 2. Get the PCI device ID and DMA device ID of DUT, for example, 0000:18:00.0 is PCI device ID, 0000:00:04.0, 0000:00:04.1 is DMA device ID::
 
-      <dpdk dir># ./usertools/dpdk-devbind.py -s
+    <dpdk dir># ./usertools/dpdk-devbind.py -s
 
-      Network devices using kernel driver
-      ===================================
-      0000:18:00.0 'Device 159b' if=ens785f0 drv=ice unused=vfio-pci
+    Network devices using kernel driver
+    ===================================
+    0000:18:00.0 'Device 159b' if=ens785f0 drv=ice unused=vfio-pci
 
-      DMA devices using kernel driver
-      ===============================
-      0000:00:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
-      0000:00:04.1 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
+    DMA devices using kernel driver
+    ===============================
+    0000:00:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
+    0000:00:04.1 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
 
 Test case
 =========
@@ -69,46 +70,43 @@  Common steps
 ------------
 1. Bind 1 NIC port and CBDMA channels to vfio-pci::
 
-      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port pci device id>
-      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port DMA device id>
-
-      For example, 2 CBDMA channels:
-      <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 0000:00:04.0,0000:00:04.1
+    <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port pci device id>
+    <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port DMA device id>
 
-Test Case 1: split virtqueue vm2vm non-mergeable path multi-queues payload check with cbdma enable
---------------------------------------------------------------------------------------------------
-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 CBDMA channels. Both iova as VA and PA mode test.
+    For example, 2 CBDMA channels:
+    <dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci 0000:00:04.0,0000:00:04.1
 
-1. Bind 2 CBDMA channel to vfio-pci, as common step 1.
+Test Case 1: VM2VM split ring non-mergeable path multi-queues payload check with cbdma enable
+---------------------------------------------------------------------------------------------
+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 operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1]
 
-3. Launch virtio-user1 by below command::
+2. Launch virtio-user1 by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+    ./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 \
+    --vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=/root/dpdk/vhost-net1,queues=2,server=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
     -- -i --enable-hw-vlan-strip --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::
+3. 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'
+    ./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 packets::
+4. Launch virtio-user0 and send packets::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 \
+    ./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-net,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+    --vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=/root/dpdk/vhost-net0,queues=2,server=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
     -- -i --enable-hw-vlan-strip --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
     testpmd>set burst 1
     testpmd>set txpkts 64,128,256,512
@@ -121,233 +119,150 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 1
     testpmd>stop
 
-6. Start vhost testpmd, check virtio-user1 RX-packets is 566 and RX-bytes is 486016, 54 packets with 960 length and 512 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
+5. Start vhost testpmd, check virtio-user1 RX-packets is 566 and RX-bytes is 486016, 502 packets with 960 length and 64 packets with 64 length in pdump-virtio-rx.pcap.
 
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
-
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
-    --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=4096 --rxd=4096 --no-flush-rx \
-    --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1]
-
-10. Rerun step 3.
-
-11. 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
-
-12. Rerun step 6.
+7. Quit and relaunch vhost with iova=pa by below command::
 
-Test Case 2: split virtqueue vm2vm mergeable path multi-queues payload check with cbdma enable
-----------------------------------------------------------------------------------------------
-This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user split ring mergeable path
-and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA channels. Both iova as VA and PA mode test.
-
-1. Bind 1 CBDMA channel to vfio-pci, as common step 1.
+	./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
+	--vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
+	--iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
+	--lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1]
 
-2. Launch vhost by below command::
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 \
-    --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=4096 --rxd=4096 --no-flush-rx \
-    --lcore-dma=[lcore11@0000:00:04.0]
-
-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=0,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
+    ./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'
 
-4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+9. Virtio-user0 send packets::
 
-    <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 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-net,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=4096 --rxd=4096
     testpmd>set burst 1
-    testpmd>set txpkts 64,256,2000,64,256,2000
+    testpmd>set txpkts 64,128,256,512
     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, check 502 packets and 279232 bytes received by virtio-user1 and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
-
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
-
+    testpmd>set txpkts 64
+    testpmd>start tx_first 1
     testpmd>stop
-    testpmd>clear port stats all
-    testpmd>start
-
-9. Relaunch vhost with iova=pa by below command::
-
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 \
-    --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=4096 --rxd=4096 --no-flush-rx \
-    --lcore-dma=[lcore11@0000:00:04.0]
-
-10. Rerun step 3.
-
-11. 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
 
-12. Rerun step 6.
+10. Rerun step 5.
 
-Test Case 3: split virtqueue vm2vm inorder non-mergeable path multi-queues payload check with cbdma enable
-----------------------------------------------------------------------------------------------------------
+Test Case 2: VM2VM split ring inorder non-mergeable path multi-queues payload check with cbdma enable
+-----------------------------------------------------------------------------------------------------
 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 CBDMA channels. Both iova as VA and PA mode test.
+and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-1. Bind 5 CBDMA channel to vfio-pci, as common step 1.
+1. Launch vhost by below command::
 
-2. Launch vhost by below command::
-
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4]
 
-3. Launch virtio-user1 by below command::
+2. 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 \
+    ./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=/root/dpdk/vhost-net1,queues=2,server=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::
+3. 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'
+    ./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 packets::
+4. 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-net,queues=2,server=1,packed_vq=0,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+    ./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=/root/dpdk/vhost-net0,queues=2,server=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 64,256,2000,64,256,2000
-    testpmd>start tx_first 27
-    testpmd>stop
-    testpmd>set burst 32
     testpmd>set txpkts 64
+	testpmd>start tx_first 27
+	testpmd>stop
+    testpmd>set burst 32
     testpmd>start tx_first 7
     testpmd>stop
+    testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 1
+    testpmd>stop
 
-6. Start vhost testpmd, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
-
-    testpmd>quit
+5. Start vhost testpmd, check 502 packets and 32128 bytes received by virtio-user1 and 502 packets with 64 length in pdump-virtio-rx.pcap.
 
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	testpmd>set burst 1
-	testpmd>set txpkts 64,256,2000,64,256,2000
+9. Virtio-user0 send packets::
+
+    testpmd>set burst 1
 	testpmd>start tx_first 27
 	testpmd>stop
-	testpmd>set burst 32
-	testpmd>set txpkts 64
-	testpmd>start tx_first 7
-	testpmd>stop
+    testpmd>set burst 32
+    testpmd>start tx_first 7
+    testpmd>stop
+    testpmd>set txpkts 64,256,2000,64,256,2000
+	testpmd>start tx_first 1
+    testpmd>stop
 
-12. Rerun step 6.
+10. Rerun step 5.
 
-Test Case 4: split virtqueue vm2vm vectorized path multi-queues payload check with cbdma enable
------------------------------------------------------------------------------------------------
+Test Case 3: VM2VM split ring vectorized path multi-queues payload check with cbdma enable
+------------------------------------------------------------------------------------------
 This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user split ring vectorized path
-and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA channels. Both iova as VA and PA mode test.
+and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-1. Bind 8 CBDMA channel to vfio-pci, as common step 1.
+1. Launch vhost by below command::
 
-2. Launch vhost by below command::
-
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq1],dma_ring_size=2048' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-3. Launch virtio-user1 by below command::
+2. 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,vectorized=1,queue_size=4096 \
+    ./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=/root/dpdk/vhost-net1,queues=2,server=1,mrg_rxbuf=0,in_order=0,vectorized=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::
+3. 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'
+    ./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 packets::
+4. 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-net,queues=2,server=1,mrg_rxbuf=0,in_order=0,vectorized=1,queue_size=4096 \
+    ./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=/root/dpdk/vhost-net0,queues=2,server=1,mrg_rxbuf=0,in_order=0,,vectorized=1,queue_size=4096 \
     -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
+
     testpmd>set burst 32
     testpmd>set txpkts 64
     testpmd>start tx_first 7
@@ -357,80 +272,76 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 27
     testpmd>stop
 
-6. Start vhost testpmd, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
+5. Start vhost testpmd, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq1],dma_ring_size=2048' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	testpmd>set burst 32
-	testpmd>set txpkts 64
-	testpmd>start tx_first 7
-	testpmd>stop
-	testpmd>set burst 1
-	testpmd>set txpkts 64,256,2000,64,256,2000
-	testpmd>start tx_first 27
-	testpmd>stop
+9. Virtio-user0 send packets::
+
+    testpmd>set burst 32
+    testpmd>set txpkts 64
+    testpmd>start tx_first 7
+    testpmd>stop
+    testpmd>set burst 1
+    testpmd>set txpkts 64,256,2000,64,256,2000
+    testpmd>start tx_first 27
+    testpmd>stop
 
-12. Rerun step 6.
+10. Rerun step 5.
 
-Test Case 5: Split virtqueue vm2vm inorder mergeable path test non-indirect descriptor with cbdma enable
---------------------------------------------------------------------------------------------------------
+Test Case 4: VM2VM split ring inorder mergeable path test non-indirect descriptor with cbdma enable
+---------------------------------------------------------------------------------------------------
 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 CBDMA channels. Both 
+split ring inorder mergeable path and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both
 iova as VA and PA mode test.
 
-1. Bind 4 CBDMA channel to vfio-pci, as common step 1.
-
-2. Launch testpmd by below command::
+1. Launch testpmd by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3]
 
-3. Launch virtio-user1 by below command::
+2. Launch virtio-user1 by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+    ./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 \
+    --vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=/root/dpdk/vhost-net1,queues=2,server=1,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::
+3. 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'
+    ./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 packets(include 251 small packets and 32 8K packets)::
+4. Launch virtio-user0 and send packets(include 251 small packets and 32 8K packets)::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 \
+    ./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-net,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=1,queue_size=256 \
+    --vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=/root/dpdk/vhost-net0,queues=2,server=1,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>set txpkts 64
     testpmd>start tx_first 27
     testpmd>stop
     testpmd>set burst 32
@@ -440,59 +351,54 @@  iova as VA and PA mode test.
     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,
+5. Start vhost, then quit pdump and three testpmd, about split virtqueue inorder mergeable path, it use the non-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. Relaunch vhost with iova=pa by below command::
+6. Relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3]
 
-8. Rerun step 3-6.
+7. Rerun step 2-5.
 
-Test Case 6: Split virtqueue vm2vm mergeable path test indirect descriptor with cbdma enable
---------------------------------------------------------------------------------------------
+Test Case 5: VM2VM split ring mergeable path test indirect descriptor with cbdma enable
+---------------------------------------------------------------------------------------
 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 CBDMA channels. Both
-iova as VA and PA mode test.
-
-1. Bind 4 CBDMA channel to vfio-pci, as common step 1.
+split ring mergeable path and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch testpmd by below command::
+1. Launch testpmd by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3]
 
-3. Launch virtio-user1 by below command::
+2. 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=256 \
+    ./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=/root/dpdk/vhost-net1,queues=2,server=1,mrg_rxbuf=1,in_order=0,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::
+3. 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'
+    ./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 packets(include 251 small packets and 32 8K packets)::
+4. Launch virtio-user0 and send packets(include 251 small packets and 32 8K packets)::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 \
+    ./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-net,queues=2,server=1,packed_vq=0,mrg_rxbuf=1,in_order=0,queue_size=256 \
+    --vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=/root/dpdk/vhost-net0,queues=2,server=1,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>set txpkts 64
     testpmd>start tx_first 27
     testpmd>stop
     testpmd>set burst 32
@@ -502,55 +408,53 @@  iova as VA and PA mode test.
     testpmd>start tx_first 1
     testpmd>stop
 
-6. Start vhost, then quit pdump and three testpmd, about split virtqueue mergeable path, it use the indirect descriptors, the 8k length pkt will just occupies one ring.
+5. Start vhost, then quit pdump and three testpmd, about split virtqueue 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 iova=pa by below command::
+6. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3]
 
-8. Rerun step 3-6.
+7. Rerun step 2-5.
 
-Test Case 7: packed virtqueue vm2vm non-mergeable path multi-queues payload check with cbdma enable
----------------------------------------------------------------------------------------------------
+Test Case 6: VM2VM packed ring non-mergeable path multi-queues payload check with cbdma enable
+----------------------------------------------------------------------------------------------
 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 CBDMA channels. Both iova as VA and PA mode test.
+and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-1. Bind 2 CBDMA channel to vfio-pci, as common step 1.
+1. Launch vhost by below command::
 
-2. Launch vhost by below command::
-
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
     --iova=va -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1]
 
-3. Launch virtio-user1 by below command::
+2. Launch virtio-user1 by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 \
+    ./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 \
+    --vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=/root/dpdk/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::
+3. 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'
+    ./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 packets::
+4. Launch virtio-user0 and send packets::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 \
+    ./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-net,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=0,queue_size=4096 \
+    --vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=/root/dpdk/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 32
     testpmd>set txpkts 64
     testpmd>start tx_first 7
@@ -560,73 +464,70 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 27
     testpmd>stop
 
-6. Start vhost testpmd, quit pdump and check virtio-user1 RX-packets is 448 and RX-bytes is 28672, 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
+5. Start vhost testpmd, check virtio-user1 RX-packets is 448 and RX-bytes is 28672, 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
     --iova=pa -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	testpmd>set burst 32
-	testpmd>set txpkts 64
-	testpmd>start tx_first 7
-	testpmd>stop
-	testpmd>set burst 1
-	testpmd>set txpkts 64,256,2000,64,256,2000
-	testpmd>start tx_first 27
-	testpmd>stop
+9. Virtio-user0 send packets::
 
-12. Rerun step 6.
+    testpmd>set burst 32
+    testpmd>set txpkts 64
+    testpmd>start tx_first 7
+    testpmd>stop
+    testpmd>set burst 1
+    testpmd>set txpkts 64,256,2000,64,256,2000
+    testpmd>start tx_first 27
+    testpmd>stop
 
-Test Case 8: packed virtqueue vm2vm mergeable path multi-queues payload check with cbdma enable
------------------------------------------------------------------------------------------------
-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 CBDMA channels. Both iova as VA and PA mode test.
+10. Rerun step 5.
 
-1. Bind 1 CBDMA channel to vfio-pci, as common step 1.
+Test Case 7: VM2VM packed ring mergeable path multi-queues payload check with cbdma enable
+------------------------------------------------------------------------------------------
+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 operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
     --iova=va -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0]
 
-3. Launch virtio-user1 by below command::
+2. 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 \
+    ./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=/root/dpdk/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::
+3. 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'
+    ./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 packets::
+4. 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-net,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=0,queue_size=4096 \
+    ./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=/root/dpdk/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
@@ -637,74 +538,71 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 7
     testpmd>stop
 
-6. Start vhost testpmd, then quit pdump, check 502 packets and 279232 bytes received by virtio-user1 and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
+5. Start vhost testpmd, then quit pdump, check 502 packets and 279232 bytes received by virtio-user1 and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-7. Quit vhost testpmd::
-
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
     --iova=pa -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	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
+9. Virtio-user0 send packets::
 
-12. Rerun step 6.
+    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
 
-Test Case 9: packed virtqueue vm2vm inorder mergeable path multi-queues payload check with cbdma enable
--------------------------------------------------------------------------------------------------------
-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 CBDMA channels. Both iova as VA and PA mode test.
+10. Rerun step 5.
 
-1. Bind 5 CBDMA channel to vfio-pci, as common step 1.
+Test Case 8: VM2VM packed ring inorder mergeable path multi-queues payload check with cbdma enable
+--------------------------------------------------------------------------------------------------
+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 operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4]
 
-3. Launch virtio-user1 by below command::
+2. 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 \
+    ./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=/root/dpdk/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::
+3. 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'
+    ./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::
+4. Launch virtio-user0 and send 8k length 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-net,queues=2,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,queue_size=4096 \
+    ./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=/root/dpdk/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
@@ -715,76 +613,74 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 7
     testpmd>stop
 
-6. Start vhost testpmd, then quit pdump, check 502 packets and 279232 bytes received by virtio-user1 and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
+5. Start vhost testpmd, then quit pdump, check 502 packets and 279232 bytes received by virtio-user1 and 54 packets with 4640 length and 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	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
+9. 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
 
-12. Rerun step 6.
+10. Rerun step 5.
 
-Test Case 10: packed virtqueue vm2vm inorder non-mergeable path multi-queues payload check with cbdma enable
-------------------------------------------------------------------------------------------------------------
+Test Case 9: VM2VM packed ring inorder non-mergeable path multi-queues payload check with cbdma enable
+------------------------------------------------------------------------------------------------------
 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 CBDMA channels. Both iova as VA and PA mode test.
-
-1. Bind 8 CBDMA channel to vfio-pci, as common step 1.
+and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq1],dma_ring_size=2048' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq1;rxq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-3. Launch virtio-user1 by below command::
+2. 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 \
+    ./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=/root/dpdk/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::
+3. 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'
+    ./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::
+4. Launch virtio-user0 and send 8k length 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-net,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,queue_size=4096 \
+    ./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=/root/dpdk/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 32
     testpmd>set txpkts 64
     testpmd>start tx_first 7
@@ -794,75 +690,69 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 27
     testpmd>stop
 
-6. Start vhost testpmd, then quit pdump, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
-
-    testpmd>quit
+5. Start vhost testpmd, then quit pdump, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq1],dma_ring_size=2048' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq1;rxq1]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	testpmd>set burst 32
-	testpmd>set txpkts 64
-	testpmd>start tx_first 7
-	testpmd>stop
-	testpmd>set burst 1
-	testpmd>set txpkts 64,256,2000,64,256,2000
-	testpmd>start tx_first 27
-	testpmd>stop
+9. Virtio-user0 send packets::
 
-12. Rerun step 6.
+    testpmd>set burst 32
+    testpmd>set txpkts 64
+    testpmd>start tx_first 7
+    testpmd>stop
+    testpmd>set burst 1
+    testpmd>set txpkts 64,256,2000,64,256,2000
+    testpmd>start tx_first 27
+    testpmd>stop
 
-Test Case 11: packed virtqueue vm2vm vectorized-rx path multi-queues payload check with indirect descriptor and cbdma enable
-----------------------------------------------------------------------------------------------------------------------------
-This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring vectorizedi-rx path
-and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA channels. Both iova as VA and PA mode test.
+10. Rerun step 5.
 
-1. Bind 8 CBDMA channel to vfio-pci, as common step 1.
+Test Case 10: VM2VM packed ring vectorized-rx path multi-queues payload check with cbdma enable
+-----------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring vectorized-rx path
+and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq1],dma_ring_size=2048' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq1;rxq1]' \
     --iova=va -- -i --nb-cores=2 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore12@0000:00:04.4,lcore12@0000:00:04.5,lcore12@0000:00:04.6,lcore12@0000:00:04.7]
 
-3. Launch virtio-user1 by below command::
+2. 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=0,in_order=1,vectorized=1,queue_size=4096 \
+    ./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=/root/dpdk/vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=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::
+3. 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'
+    ./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::
+4. 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=0,in_order=1,vectorized=1,queue_size=4096 \
+    ./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=/root/dpdk/vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1,queue_size=4096 \
     -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096
 
     testpmd>set burst 32
@@ -874,75 +764,70 @@  and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA
     testpmd>start tx_first 27
     testpmd>stop
 
-6. Start vhost testpmd, then quit pdump, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
+5. Start vhost testpmd, then quit pdump, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-7. Quit vhost testpmd::
-
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=2,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq1],dma_ring_size=2048' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq1;rxq1]' \
     --iova=pa -- -i --nb-cores=2 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
-    --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore12@0000:00:04.3,lcore12@0000:00:04.4,lcore12@0000:00:04.5,lcore12@0000:00:04.6,lcore12@0000:00:04.7]
+    --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore12@0000:00:04.4,lcore12@0000:00:04.5,lcore12@0000:00:04.6,lcore12@0000:00:04.7]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	testpmd>set burst 32
-	testpmd>set txpkts 64
-	testpmd>start tx_first 7
-	testpmd>stop
-	testpmd>set burst 1
-	testpmd>set txpkts 64,256,2000,64,256,2000
-	testpmd>start tx_first 27
-	testpmd>stop
+9. Virtio-user0 send packets::
 
-12. Rerun step 6.
+    testpmd>set burst 32
+    testpmd>set txpkts 64
+    testpmd>start tx_first 7
+    testpmd>stop
+    testpmd>set burst 1
+    testpmd>set txpkts 64,256,2000,64,256,2000
+    testpmd>start tx_first 27
+    testpmd>stop
 
-Test Case 12: packed virtqueue vm2vm vectorized path multi-queues payload check with ring size is not power of 2 and cbdma enable
----------------------------------------------------------------------------------------------------------------------------------
-This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring vectorized path
-with ring size is not power of 2 and multi-queues when vhost uses the asynchronous enqueue operations with CBDMA channels. Both iova as VA and PA mode test.
+10. Rerun step 5.
 
-1. Bind 8 CBDMA channel to vfio-pci, as common step 1.
+Test Case 11: VM2VM packed ring vectorized path multi-queues payload check test with ring size is not power of 2 with cbdma enable
+----------------------------------------------------------------------------------------------------------------------------------
+This case uses testpmd to test the payload is valid after packets forwarding in vhost-user/virtio-user packed ring vectorized path with ring size is not power of 2
+and multi-queues when vhost uses the asynchronous operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq0;txq1;rxq0;rxq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-3. Launch virtio-user1 by below command::
+2. Launch virtio-user1 by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --force-max-simd-bitwidth=512  --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,vectorized=1,queue_size=4097 \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 7-8 --force-max-simd-bitwidth=512  --no-pci --file-prefix=virtio1 \
+    --vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=/root/dpdk/vhost-net1,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1,queue_size=4097 \
     -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4097 --rxd=4097
     testpmd>set fwd rxonly
     testpmd>start
 
-4. Attach pdump secondary process to primary process of virtio-user1 by same file-prefix::
+3. 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'
+    ./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::
+4. 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=0,in_order=1,vectorized=1,queue_size=4097 \
+    ./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=/root/dpdk/vhost-net0,queues=2,server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1,queue_size=4097 \
     -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4097 --rxd=4097
 
     testpmd>set burst 32
@@ -954,79 +839,74 @@  with ring size is not power of 2 and multi-queues when vhost uses the asynchrono
     testpmd>start tx_first 27
     testpmd>stop
 
-6. Start vhost testpmd, then quit pdump, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
-
-7. Quit vhost testpmd::
+5. Start vhost testpmd, then quit pdump, check 448 packets and 28672 bytes received by virtio-user1 and 448 packets with 64 length in pdump-virtio-rx.pcap.
 
-    testpmd>quit
-
-8. Clear virtio-user1 port stats, execute below command::
+6. Clear virtio-user1 port stats::
 
     testpmd>stop
     testpmd>clear port stats all
     testpmd>start
 
-9. Relaunch vhost with iova=pa by below command::
+7. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq1]' \
     --iova=pa -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=4096 --rxd=4096 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore12@0000:00:04.3,lcore12@0000:00:04.4,lcore12@0000:00:04.5,lcore12@0000:00:04.6,lcore12@0000:00:04.7]
 
-10. Rerun step 4.
+8. Attach pdump secondary process to primary process by same file-prefix::
 
-11. Virtio-user0 send packets::
+    ./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'
 
-	testpmd>set burst 32
-	testpmd>set txpkts 64
-	testpmd>start tx_first 7
-	testpmd>stop
-	testpmd>set burst 1
-	testpmd>set txpkts 64,256,2000,64,256,2000
-	testpmd>start tx_first 27
-	testpmd>stop
+9. Virtio-user0 send packets::
 
-12. Rerun step 6.
+    testpmd>set burst 32
+    testpmd>set txpkts 64
+    testpmd>start tx_first 7
+    testpmd>stop
+    testpmd>set burst 1
+    testpmd>set txpkts 64,256,2000,64,256,2000
+    testpmd>start tx_first 27
+    testpmd>stop
 
-Test Case 13: packed virtqueue vm2vm vectorized-tx path multi-queues test indirect descriptor with cbdma enable
----------------------------------------------------------------------------------------------------------------
-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 CBDMA channels.
-Both iova as VA and PA mode test.
+10. Rerun step 5.
 
-1. Bind 8 CBDMA channel to vfio-pci, as common step 1.
+Test Case 12: VM2VM packed ring vectorized-tx path multi-queues test indirect descriptor and payload check with cbdma enable
+----------------------------------------------------------------------------------------------------------------------------
+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 operations with CBDMA channels. Both iova as VA and PA mode test.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=2,client=1,dmas=[txq1]' \
     --iova=va -- -i --nb-cores=1 --rxq=2 --txq=2 --txd=256 --rxd=256 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-3. Launch virtio-user1 by below command::
+2. 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 \
+    ./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=/root/dpdk/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 of virtio-user1 by same file-prefix::
+3. 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'
+    ./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::
+4. 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 \
+    ./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=/root/dpdk/vhost-net0,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>set txpkts 64
     testpmd>start tx_first 27
     testpmd>stop
     testpmd>set burst 32
@@ -1036,56 +916,53 @@  Both iova as VA and PA mode test.
     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.
+5. 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::
+6. Quit and relaunch vhost with iova=pa by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --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' \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=2,client=1,dmas=[rxq0;rxq1]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/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=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-8. Rerun step 3-6.
-
-Test Case 14: packed virtqueue vm2vm vectorized-tx path test batch processing with cbdma enable
------------------------------------------------------------------------------------------------
-This case uses testpmd to test that one packet can forwarding in vhost-user/virtio-user packed ring vectorized-tx path 
-when vhost uses the asynchronous enqueue operations with CBDMA channels.
+7. Rerun step 2-5.
 
-1. Bind 8 CBDMA channel to vfio-pci, as common step 1.
+Test Case 13: VM2VM packed ring vectorized-tx path test batch processing with cbdma enable
+------------------------------------------------------------------------------------------
+This case uses testpmd to test that one packet can forwarding in vhost-user/virtio-user packed ring vectorized-tx path
+when vhost uses the asynchronous operations with CBDMA channels.
 
-2. Launch vhost by below command::
+1. Launch vhost by below command::
 
-    <dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
-    -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
-    --vdev 'eth_vhost0,iface=vhost-net,queues=1,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --vdev 'eth_vhost1,iface=vhost-net1,queues=1,client=1,dmas=[txq0],dma_ring_size=2048' \
-    --iova=va -- -i --nb-cores=1 --rxq=1 --txq=1 --txd=256 --rxd=256 --no-flush-rx \
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \
+	-a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \
+    --vdev 'eth_vhost0,iface=/root/dpdk/vhost-net0,queues=1,client=1,dmas=[txq0;rxq0]' \
+	--vdev 'eth_vhost1,iface=/root/dpdk/vhost-net1,queues=1,client=1,dmas=[txq0;rxq0]' \
+    --iova=va -- -i --nb-cores=1 --txd=256 --rxd=256 --no-flush-rx \
     --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.1,lcore11@0000:00:04.2,lcore11@0000:00:04.3,lcore11@0000:00:04.4,lcore11@0000:00:04.5,lcore11@0000:00:04.6,lcore11@0000:00:04.7]
 
-3. Launch virtio-user1 by below command::
+2. 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=1,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
-    -- -i --nb-cores=1 --rxq=1 --txq=1 --txd=256 --rxd=256
+    ./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=/root/dpdk/vhost-net1,queues=1,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
+    -- -i --nb-cores=1 --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::
+3. 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'
+    ./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 1 packet::
+4. Launch virtio-user0 and send 1 packet::
 
-    <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=1,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
-    -- -i --nb-cores=1 --rxq=1 --txq=1 --txd=256 --rxd=256
+    ./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=/root/dpdk/vhost-net0,queues=1,server=1,packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1,queue_size=256 \
+    -- -i --nb-cores=1 --txd=256 --rxd=256
     testpmd>set burst 1
     testpmd>start tx_first 1
     testpmd>stop
 
-6. Start vhost, then quit pdump and three testpmd, check 1 packet and 64 bytes received by virtio-user1 and 1 packet with 64 length in pdump-virtio-rx.pcap.
+5. Start vhost, then quit pdump and three testpmd, check 1 packet and 64 bytes received by virtio-user1 and 1 packet with 64 length in pdump-virtio-rx.pcap.