diff --git a/test_plans/dpdk_gro_lib_test_plan.rst b/test_plans/dpdk_gro_lib_test_plan.rst
index e36550d2..e46f2487 100644
--- a/test_plans/dpdk_gro_lib_test_plan.rst
+++ b/test_plans/dpdk_gro_lib_test_plan.rst
@@ -16,12 +16,12 @@ be processed. To benefit DPDK-based applications, like Open vSwitch,
 DPDK also provides own GRO implementation. In DPDK, GRO is implemented
 as a standalone library. Applications explicitly use the GRO library to
 reassemble packets.
-
 In the GRO library, there are many GRO types which are defined by packet
 types. One GRO type is in charge of process one kind of packets. For
 example, TCP/IPv4 GRO processes TCP/IPv4 packets.
 
 Each GRO type has a reassembly function, which defines own algorithm and
+
 table structure to reassemble packets. We assign input packets to the
 corresponding GRO functions by MBUF->packet_type.
 
@@ -95,7 +95,7 @@ Test Case1: DPDK GRO lightmode test with tcp/ipv4 traffic
 
 5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
 
-    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m -P 1
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m
     VM side:     iperf -s
 
 Test Case2: DPDK GRO heavymode test with tcp/ipv4 traffic
@@ -147,7 +147,7 @@ Test Case2: DPDK GRO heavymode test with tcp/ipv4 traffic
 
 5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
 
-    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m -P 1
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m
     VM side:     iperf -s
 
 Test Case3: DPDK GRO heavymode_flush4 test with tcp/ipv4 traffic
@@ -199,11 +199,11 @@ Test Case3: DPDK GRO heavymode_flush4 test with tcp/ipv4 traffic
 
 5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
 
-    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m -P 1
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m
     VM side:     iperf -s
 
-Test Case4: DPDK GRO test with vxlan traffic
-============================================
+Test Case4: DPDK GRO test with tcp/vxlan traffic
+================================================
 
 Vxlan topology
 --------------
@@ -274,8 +274,8 @@ Vxlan topology
 
 5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
 
-    Host side :  ip netns exec t2 iperf -c 50.1.1.2 -i 2 -t 60 -f g -m
-    VM side:     iperf -s -f g
+    Host side :  ip netns exec t2 iperf -c 50.1.1.2 -i 2 -t 60 -f
+    VM side:     iperf -s -f
 
 Test Case5: DPDK GRO test with 2 queues using tcp/ipv4 traffic
 ==============================================================
@@ -288,24 +288,24 @@ Test Case5: DPDK GRO test with 2 queues using tcp/ipv4 traffic
     ip netns exec ns1 ifconfig enp26s0f0 1.1.1.8 up
     ip netns exec ns1 ethtool -K enp26s0f0 tso on
 
-2. Bind cbdma port and nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 1::
+2. Bind nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 1::
 
     ./usertools/dpdk-devbind.py -b vfio-pci xx:xx.x
     ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 29-31 -n 4 \
     --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=2' -- -i --txd=1024 --rxd=1024 --txq=2 --rxq=2 --nb-cores=2
-    set fwd csum
-    stop
-    port stop 0
-    port stop 1
-    csum set tcp hw 0
-    csum set ip hw 0
-    csum set tcp hw 1
-    csum set ip hw 1
-    set port 0 gro on
-    set gro flush 1
-    port start 0
-    port start 1
-    start
+    testpmd>set fwd csum
+    testpmd>stop
+    testpmd>port stop 0
+    testpmd>port stop 1
+    testpmd>csum set tcp hw 0
+    testpmd>csum set ip hw 0
+    testpmd>csum set tcp hw 1
+    testpmd>csum set ip hw 1
+    testpmd>set port 0 gro on
+    testpmd>set gro flush 1
+    testpmd>port start 0
+    testpmd>port start 1
+    testpmd>start
 
 3.  Set up vm with virto device and using kernel virtio-net driver::
 
@@ -327,5 +327,289 @@ Test Case5: DPDK GRO test with 2 queues using tcp/ipv4 traffic
 
 5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get better performance than case1::
 
-    Host side :  taskset -c 35 ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -m -P 2
+    Host side :  taskset -c 35 ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 
+    VM side:     iperf -s
+
+Test Case6: DPDK GRO lightmode test with udp/ipv4 traffic
+=========================================================
+
+1. Connect two nic port directly, put nic2 into another namesapce and turn on the tso of this nic port by below cmds::
+
+    ip netns del ns1
+    ip netns add ns1
+    ip link set [enp216s0f0] netns ns1       # [enp216s0f0] is the name of nic2
+    ip netns exec ns1 ifconfig [enp216s0f0] 1.1.1.8 up
+    ip netns exec ns1 ethtool -K [enp216s0f0] tso on
+
+2. Bind nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 1::
+
+    ./usertools/dpdk-devbind.py -b vfio-pci xx:xx.x
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-4 -n 4 \
+    --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --txd=1024 --rxd=1024
+    testpmd>set fwd csum
+    testpmd>stop
+    testpmd>port stop 0
+    testpmd>port stop 1
+    testpmd>csum set tcp hw 0
+    testpmd>csum set ip hw 0
+    testpmd>csum set tcp hw 1
+    testpmd>csum set ip hw 1
+    testpmd>set port 0 gro on
+    testpmd>set gro flush 1
+    testpmd>port start 0
+    testpmd>port start 1
+    testpmd>start
+
+3.  Set up vm with virto device and using kernel virtio-net driver::
+
+     taskset -c 13 qemu-system-x86_64 -name us-vhost-vm1 \
+       -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on \
+       -numa node,memdev=mem \
+       -mem-prealloc -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6001-:22 \
+       -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu2004.img  \
+       -chardev socket,id=char0,path=./vhost-net \
+       -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+       -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,host_tso4=on,guest_tso4=on,guest_ufo=on,guest_ecn=on \
+       -vnc :10 -daemonize
+
+4. In vm, config the virtio-net device with ip and turn the kernel gro off::
+
+    ifconfig [ens3] 1.1.1.2 up  # [ens3] is the name of virtio-net
+    ethtool -K [ens3] gro off
+
+5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
+
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -P 4 -u -b 10G -l 9000
+    VM side:     iperf -s
+
+Test Case7: DPDK GRO heavymode test with udp/ipv4 traffic
+=========================================================
+
+1. Connect two nic port directly, put nic2 into another namesapce and turn on the tso of this nic port by below cmds::
+
+    ip netns del ns1
+    ip netns add ns1
+    ip link set [enp216s0f0] netns ns1       # [enp216s0f0] is the name of nic2
+    ip netns exec ns1 ifconfig [enp216s0f0] 1.1.1.8 up
+    ip netns exec ns1 ethtool -K [enp216s0f0] tso on
+
+2. Bind nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 2::
+
+    ./usertools/dpdk-devbind.py -b vfio-pci xx:xx.x
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-4 -n 4 \
+    --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --txd=1024 --rxd=1024
+    testpmd>set fwd csum
+    testpmd>stop
+    testpmd>port stop 0
+    testpmd>port stop 1
+    testpmd>csum set tcp hw 0
+    testpmd>csum set ip hw 0
+    testpmd>csum set tcp hw 1
+    testpmd>csum set ip hw 1
+    testpmd>set port 0 gro on
+    testpmd>set gro flush 2
+    testpmd>port start 0
+    testpmd>port start 1
+    testpmd>start
+
+3.  Set up vm with virto device and using kernel virtio-net driver::
+
+     taskset -c 13 qemu-system-x86_64 -name us-vhost-vm1 \
+       -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on \
+       -numa node,memdev=mem \
+       -mem-prealloc -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6001-:22 \
+       -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu2004.img  \
+       -chardev socket,id=char0,path=./vhost-net \
+       -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+       -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,host_tso4=on,guest_tso4=on,guest_ufo=on,guest_ecn=on \
+       -vnc :10 -daemonize
+
+4. In vm, config the virtio-net device with ip and turn the kernel gro off::
+
+    ifconfig [ens3] 1.1.1.2 up  # [ens3] is the name of virtio-net
+    ethtool -K [ens3] gro off
+
+5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
+
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -P 4 -u -b 10G -l 9000
+    VM side:     iperf -s
+
+Test Case8: DPDK GRO heavymode_flush4 test with udp/ipv4 traffic
+================================================================
+
+1. Connect two nic port directly, put nic2 into another namesapce and turn on the tso of this nic port by below cmds::
+
+    ip netns del ns1
+    ip netns add ns1
+    ip link set [enp216s0f0] netns ns1       # [enp216s0f0] is the name of nic2
+    ip netns exec ns1 ifconfig [enp216s0f0] 1.1.1.8 up
+    ip netns exec ns1 ethtool -K [enp216s0f0] tso on
+
+2. Bind nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 4::
+
+    ./usertools/dpdk-devbind.py -b vfio-pci xx:xx.x
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-4 -n 4 \
+    --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --txd=1024 --rxd=1024
+    testpmd>set fwd csum
+    testpmd>stop
+    testpmd>port stop 0
+    testpmd>port stop 1
+    testpmd>csum set tcp hw 0
+    testpmd>csum set ip hw 0
+    testpmd>csum set tcp hw 1
+    testpmd>csum set ip hw 1
+    testpmd>set port 0 gro on
+    testpmd>set gro flush 4
+    testpmd>port start 0
+    testpmd>port start 1
+    testpmd>start
+
+3.  Set up vm with virto device and using kernel virtio-net driver::
+
+     taskset -c 13 qemu-system-x86_64 -name us-vhost-vm1 \
+       -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on \
+       -numa node,memdev=mem \
+       -mem-prealloc -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6001-:22 \
+       -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu2004.img  \
+       -chardev socket,id=char0,path=./vhost-net \
+       -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+       -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,host_tso4=on,guest_tso4=on,guest_ufo=on,guest_ecn=on \
+       -vnc :10 -daemonize
+
+4. In vm, config the virtio-net device with ip and turn the kernel gro off::
+
+    ifconfig [ens3] 1.1.1.2 up  # [ens3] is the name of virtio-net
+    ethtool -K [ens3] gro off
+
+5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
+
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -P 4 -u -b 10G -l 9000
+    VM side:     iperf -s
+
+Test Case9: DPDK GRO test with udp/vxlan traffic
+================================================
+
+Vxlan topology
+--------------
+  VM          Host
+
+50.1.1.2      50.1.1.1
+   \|           \|
+1.1.2.3       1.1.2.4
+   \|------------Testpmd------------|
+
+1. Connect two nic port directly, put nic2 into another namesapce and create Host VxLAN port::
+
+    ip netns del ns1
+    ip netns add ns1
+    ip link set [enp216s0f0] netns ns1    # [enp216s0f0] is the name of nic2
+    ip netns exec ns1 ifconfig [enp216s0f0] 1.1.2.4/24 up
+    VXLAN_NAME=vxlan1
+    VXLAN_IP=50.1.1.1
+    IF_NAME=[enp216s0f0]
+    VM_IP=1.1.2.3
+    ip netns exec t2 ip link add $VXLAN_NAME type vxlan id 42 dev $IF_NAME dstport 4789
+    ip netns exec t2 bridge fdb append to 00:00:00:00:00:00 dst $VM_IP dev $VXLAN_NAME
+    ip netns exec t2 ip addr add $VXLAN_IP/24 dev $VXLAN_NAME
+    ip netns exec t2 ip link set up dev $VXLAN_NAME
+
+2. Bind nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 4::
+
+    ./usertools/dpdk-devbind.py -b vfio-pci xx:xx.x
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-4 -n 4 \
+    --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --txd=1024 --rxd=1024
+    testpmd>set fwd csum
+    testpmd>stop
+    testpmd>port stop 0
+    testpmd>port stop 1
+    testpmd>csum set tcp hw 0
+    testpmd>csum set ip hw 0
+    testpmd>csum parse-tunnel on 0
+    testpmd>csum parse-tunnel on 1
+    testpmd>csum set outer-ip hw 0
+    testpmd>csum set tcp hw 1
+    testpmd>csum set ip hw 1
+    testpmd>set port 0 gro on
+    testpmd>set gro flush 4
+    testpmd>port start 0
+    testpmd>port start 1
+    testpmd>start
+
+3.  Set up vm with virto device and using kernel virtio-net driver::
+
+     taskset -c 13 qemu-system-x86_64 -name us-vhost-vm1 \
+       -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on \
+       -numa node,memdev=mem \
+       -mem-prealloc -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6001-:22 \
+       -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu2004.img  \
+       -chardev socket,id=char0,path=./vhost-net \
+       -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+       -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,host_tso4=on,guest_tso4=on,guest_ufo=on,guest_ecn=on \
+       -vnc :10 -daemonize
+
+4. In vm, config the virtio-net device with ip and turn the kernel gro off::
+
+    ip link add vxlan0 type vxlan id 42 dev [ens3] dstport 4789   # [ens3] is the name of virtio-net
+    bridge fdb add to 00:00:00:00:00:00 dst 1.1.2.4 dev vxlan0
+    ip addr add 50.1.1.2/24 dev vxlan0
+    ip link set up dev vxlan0
+    ifconfig [ens3] 1.1.2.3/24 up
+    ifconfig -a
+
+5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get expected data::
+
+    Host side :  ip netns exec t2 iperf -c 50.1.1.2 -i 1 -t 60 -P 4 -u -b 10G -l 9000
+    VM side:     iperf -s -f g
+
+Test Case10: DPDK GRO test with 2 queues using udp/ipv4 traffic
+===============================================================
+
+1. Connect two nic port directly, put nic2 into another namesapce and turn on the tso of this nic port by below cmds::
+
+    ip netns del ns1
+    ip netns add ns1
+    ip link set enp26s0f0 netns ns1       # [enp216s0f0] is the name of nic2
+    ip netns exec ns1 ifconfig enp26s0f0 1.1.1.8 up
+    ip netns exec ns1 ethtool -K enp26s0f0 tso on
+
+2. Bind nic1 to vfio-pci, launch vhost-user with testpmd and set flush interval to 1::
+
+    ./usertools/dpdk-devbind.py -b vfio-pci xx:xx.x
+    ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 29-31 -n 4 \
+    --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=2' -- -i --txd=1024 --rxd=1024 --txq=2 --rxq=2 --nb-cores=2
+    testpmd>set fwd csum
+    testpmd>stop
+    testpmd>port stop 0
+    testpmd>port stop 1
+    testpmd>csum set tcp hw 0
+    testpmd>csum set ip hw 0
+    testpmd>csum set tcp hw 1
+    testpmd>csum set ip hw 1
+    testpmd>set port 0 gro on
+    testpmd>set gro flush 1
+    testpmd>port start 0
+    testpmd>port start 1
+    testpmd>start
+
+3.  Set up vm with virto device and using kernel virtio-net driver::
+
+     taskset -c 31 /home/qemu-install/qemu-4.2.1/bin/qemu-system-x86_64 -name us-vhost-vm1 \
+       -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on \
+       -numa node,memdev=mem \
+       -mem-prealloc -monitor unix:/tmp/vm2_monitor.sock,server,nowait -netdev user,id=yinan,hostfwd=tcp:127.0.0.1:6005-:22 -device e1000,netdev=yinan \
+       -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu2004.img  \
+       -chardev socket,id=char0,path=./vhost-net \
+       -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce,queues=2 \
+       -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,host_tso4=on,guest_tso4=on,mq=on,,guest_ufo=on,guest_ecn=on,vectors=15 \
+       -vnc :10 -daemonize
+
+4. In vm, config the virtio-net device with ip and turn the kernel gro off::
+
+    ifconfig ens4 1.1.1.2 up  # [ens3] is the name of virtio-net
+    ethtool -L ens4 combined 2
+    ethtool -K ens4 gro off
+
+5. Start iperf test, run iperf server at vm side and iperf client at host side, check throughput in log can get better performance than case1::
+
+    Host side :  ip netns exec ns1 iperf -c 1.1.1.2 -i 1 -t 60 -P 4 -u -b 10G -l 9000
     VM side:     iperf -s
