diff --git a/test_plans/vhost_event_idx_interrupt_cbdma_test_plan.rst b/test_plans/vhost_event_idx_interrupt_cbdma_test_plan.rst
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@@ -0,0 +1,281 @@
+.. Copyright (c) <2022>, Intel Corporation
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+
+   - Neither the name of Intel Corporation nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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+   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+   OF THE POSSIBILITY OF SUCH DAMAGE.
+
+========================================
+vhost event idx interrupt mode test plan
+========================================
+
+Description
+===========
+
+Vhost event idx interrupt need test with l3fwd-power sample with CBDMA channel, send small packets
+from virtio-net to vhost side，check vhost-user cores can be wakeup status，and
+vhost-user cores should be sleep status after stop sending packets from virtio
+side.For packed virtqueue test, need using qemu version > 4.2.0.
+
+
+Test flow
+=========
+
+Virtio-net --> Vhost-user
+
+Test Case 1: wake up split ring vhost-user cores with event idx interrupt mode and cbdma enabled 16 queues test
+===============================================================================================================
+
+1. Bind 16 cbdma ports to vfio-pci driver, then launch l3fwd-power example app with client mode::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-16 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=16,client=1,dmas=[txq0@80:04.0;txq1@80:04.1;txq2@80:04.2;txq3@80:04.3;txq4@80:04.4;txq5@80:04.5;txq6@80:04.6;txq7@80:04.7;txq8@00:04.0;txq9@00:04.1;txq10@00:04.2;txq11@00:04.3;txq12@00:04.4;txq13@00:04.5;txq14@00:04.6;txq15@00:04.7]' \
+    -- -p 0x1 --parse-ptype 1 \
+    --config "(0,0,1),(0,1,2),(0,2,3),(0,3,4),(0,4,5),(0,5,6),(0,6,7),(0,7,8),(0,8,9),(0,9,10),(0,10,11),(0,11,12),(0,12,13),(0,13,14),(0,14,15),(0,15,16)"
+
+2. Launch VM1 with server mode::
+
+     taskset -c 17-18 qemu-system-x86_64 -name us-vhost-vm1 -enable-kvm -cpu host -smp 1 -m 4096 \
+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \
+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu1910.img  \
+    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \
+    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \
+    -chardev socket,id=char0,path=./vhost-net0 \
+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=16 \
+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,mq=on,vectors=40 -vnc :12
+
+3. Relauch l3fwd-power sample for port up::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-16 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=16,client=1,dmas=[txq0@80:04.0;txq1@80:04.1;txq2@80:04.2;txq3@80:04.3;txq4@80:04.4;txq5@80:04.5;txq6@80:04.6;txq7@80:04.7;txq8@00:04.0;txq9@00:04.1;txq10@00:04.2;txq11@00:04.3;txq12@00:04.4;txq13@00:04.5;txq14@00:04.6;txq15@00:04.7]' \
+    -- -p 0x1 --parse-ptype 1 \
+    --config "(0,0,1),(0,1,2),(0,2,3),(0,3,4),(0,4,5),(0,5,6),(0,6,7),(0,7,8),(0,8,9),(0,9,10),(0,10,11),(0,11,12),(0,12,13),(0,13,14),(0,14,15),(0,15,16)"
+
+4. Set vitio-net with 16 quques and give vitio-net ip address::
+
+    ethtool -L [ens3] combined 16    # [ens3] is the name of virtio-net
+    ifconfig [ens3] 1.1.1.1
+
+5. Send packets with different IPs from virtio-net, notice to bind each vcpu to different send packets process::
+
+    taskset -c 0 ping 1.1.1.2
+    taskset -c 1 ping 1.1.1.3
+    taskset -c 2 ping 1.1.1.4
+    taskset -c 3 ping 1.1.1.5
+    taskset -c 4 ping 1.1.1.6
+    taskset -c 5 ping 1.1.1.7
+    taskset -c 6 ping 1.1.1.8
+    taskset -c 7 ping 1.1.1.9
+    taskset -c 8 ping 1.1.1.2
+    taskset -c 9 ping 1.1.1.2
+    taskset -c 10 ping 1.1.1.2
+    taskset -c 11 ping 1.1.1.2
+    taskset -c 12 ping 1.1.1.2
+    taskset -c 13 ping 1.1.1.2
+    taskset -c 14 ping 1.1.1.2
+    taskset -c 15 ping 1.1.1.2
+
+6. Check vhost related cores are waked up with l3fwd-power log, such as following::
+
+    L3FWD_POWER: lcore 0 is waked up from rx interrupt on port 0 queue 0
+    ...
+    ...
+    L3FWD_POWER: lcore 15 is waked up from rx interrupt on port 0 queue 15
+
+Test Case 2: wake up split ring vhost-user cores by multi virtio-net in VMs with event idx interrupt mode and cbdma enabled test
+================================================================================================================================
+
+1. Bind two cbdma ports to vfio-pci driver, then launch l3fwd-power example app with client mode::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-2 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=1,client=1,dmas=[txq0@00:04.0]' \
+    --vdev 'eth_vhost1,iface=/vhost-net1,queues=1,client=1,dmas=[txq0@80:04.0]' \
+    -- -p 0x3 --parse-ptype 1 --config "(0,0,1),(1,0,2)"
+
+2. Launch VM1 and VM2 with server mode::
+
+     taskset -c 33 \
+     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 \
+     -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu1910.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
+     -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \
+     -chardev socket,server,id=char0,path=/vhost-net0 \
+     -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+     -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,csum=on -vnc :10 -daemonize
+
+     taskset -c 34 \
+     qemu-system-x86_64 -name us-vhost-vm2 \
+     -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 \
+     -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu1910-2.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
+     -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6004-:22 \
+     -chardev socket,server,id=char0,path=/vhost-net1 \
+     -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+     -device virtio-net-pci,mac=52:54:00:00:00:02,netdev=mynet1,csum=on -vnc :11 -daemonize
+
+3. Relauch l3fwd-power sample for port up::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-2 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=1,client=1,dmas=[txq0@00:04.0]' \
+    --vdev 'eth_vhost1,iface=/vhost-net1,queues=1,client=1,dmas=[txq0@80:04.0]' \
+    -- -p 0x3 --parse-ptype 1 --config "(0,0,1),(1,0,2)"
+
+4. On VM1, set ip for virtio device and send packets to vhost::
+
+    ifconfig [ens3] 1.1.1.2
+    #[ens3] is the virtual device name
+    ping 1.1.1.3
+    #send packets to vhost
+
+5. On VM2, also set ip for virtio device and send packets to vhost::
+
+    ifconfig [ens3] 1.1.1.4
+    #[ens3] is the virtual device name
+    ping 1.1.1.5
+    #send packets to vhost
+
+6. Check vhost related cores are waked up with l3fwd-power log.
+
+Test Case 3: wake up packed ring vhost-user cores with event idx interrupt mode and cbdma enabled 16 queues test
+================================================================================================================
+
+1. Bind 16 cbdma ports to vfio-pci driver, then launch l3fwd-power example app with client mode::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-16 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=16,client=1,dmas=[txq0@80:04.0;txq1@80:04.1;txq2@80:04.2;txq3@80:04.3;txq4@80:04.4;txq5@80:04.5;txq6@80:04.6;txq7@80:04.7;txq8@00:04.0;txq9@00:04.1;txq10@00:04.2;txq11@00:04.3;txq12@00:04.4;txq13@00:04.5;txq14@00:04.6;txq15@00:04.7]' \
+    -- -p 0x1 --parse-ptype 1 \
+    --config "(0,0,1),(0,1,2),(0,2,3),(0,3,4),(0,4,5),(0,5,6),(0,6,7),(0,7,8),(0,8,9),(0,9,10),(0,10,11),(0,11,12),(0,12,13),(0,13,14),(0,14,15),(0,15,16)"
+
+2. Launch VM1 with server mode::
+
+     taskset -c 17-18 qemu-system-x86_64 -name us-vhost-vm1 -enable-kvm -cpu host -smp 1 -m 4096 \
+    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \
+    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu1910.img  \
+    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \
+    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
+    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \
+    -chardev socket,id=char0,path=./vhost-net0 \
+    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=16 \
+    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,mq=on,vectors=40,packed=on -vnc :12
+
+3. Relauch l3fwd-power sample for port up::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-16 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=16,client=1,dmas=[txq0@80:04.0;txq1@80:04.1;txq2@80:04.2;txq3@80:04.3;txq4@80:04.4;txq5@80:04.5;txq6@80:04.6;txq7@80:04.7;txq8@00:04.0;txq9@00:04.1;txq10@00:04.2;txq11@00:04.3;txq12@00:04.4;txq13@00:04.5;txq14@00:04.6;txq15@00:04.7]' \
+    -- -p 0x1 --parse-ptype 1 \
+    --config "(0,0,1),(0,1,2),(0,2,3),(0,3,4),(0,4,5),(0,5,6),(0,6,7),(0,7,8),(0,8,9),(0,9,10),(0,10,11),(0,11,12),(0,12,13),(0,13,14),(0,14,15),(0,15,16)"
+
+4. Set vitio-net with 16 quques and give vitio-net ip address::
+
+    ethtool -L [ens3] combined 16    # [ens3] is the name of virtio-net
+    ifconfig [ens3] 1.1.1.1
+
+5. Send packets with different IPs from virtio-net, notice to bind each vcpu to different send packets process::
+
+    taskset -c 0 ping 1.1.1.2
+    taskset -c 1 ping 1.1.1.3
+    taskset -c 2 ping 1.1.1.4
+    taskset -c 3 ping 1.1.1.5
+    taskset -c 4 ping 1.1.1.6
+    taskset -c 5 ping 1.1.1.7
+    taskset -c 6 ping 1.1.1.8
+    taskset -c 7 ping 1.1.1.9
+    taskset -c 8 ping 1.1.1.2
+    taskset -c 9 ping 1.1.1.2
+    taskset -c 10 ping 1.1.1.2
+    taskset -c 11 ping 1.1.1.2
+    taskset -c 12 ping 1.1.1.2
+    taskset -c 13 ping 1.1.1.2
+    taskset -c 14 ping 1.1.1.2
+    taskset -c 15 ping 1.1.1.2
+
+6. Check vhost related cores are waked up with l3fwd-power log, such as following::
+
+    L3FWD_POWER: lcore 0 is waked up from rx interrupt on port 0 queue 0
+    ...
+    ...
+    L3FWD_POWER: lcore 15 is waked up from rx interrupt on port 0 queue 15
+
+Test Case 4: wake up packed ring vhost-user cores by multi virtio-net in VMs with event idx interrupt mode and cbdma enabled test
+==================================================================================================================================
+
+1. Bind two cbdma ports to vfio-pci driver, then launch l3fwd-power example app with client mode::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-2 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=1,client=1,dmas=[txq0@00:04.0]' \
+    --vdev 'eth_vhost1,iface=/vhost-net1,queues=1,client=1,dmas=[txq0@80:04.0]' \
+    -- -p 0x3 --parse-ptype 1 --config "(0,0,1),(1,0,2)"
+
+2. Launch VM1 and VM2 with server mode::
+
+     taskset -c 33 \
+     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 \
+     -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu1910.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
+     -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \
+     -chardev socket,server,id=char0,path=/vhost-net0 \
+     -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+     -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,csum=on,packed=on -vnc :10 -daemonize
+
+     taskset -c 34 \
+     qemu-system-x86_64 -name us-vhost-vm2 \
+     -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 \
+     -smp cores=1,sockets=1 -drive file=/home/osimg/ubuntu1910-2.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
+     -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6004-:22 \
+     -chardev socket,server,id=char0,path=/vhost-net1 \
+     -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+     -device virtio-net-pci,mac=52:54:00:00:00:02,netdev=mynet1,csum=on,packed=on -vnc :11 -daemonize
+
+3. Relauch l3fwd-power sample for port up::
+
+    ./x86_64-native-linuxapp-gcc/examples/dpdk-l3fwd-power  -l 1-2 -n 4 --log-level=9 \
+    --vdev 'eth_vhost0,iface=/vhost-net0,queues=1,client=1,dmas=[txq0@00:04.0]' \
+    --vdev 'eth_vhost1,iface=/vhost-net1,queues=1,client=1,dmas=[txq0@80:04.0]' \
+    -- -p 0x3 --parse-ptype 1 --config "(0,0,1),(1,0,2)"
+
+4. On VM1, set ip for virtio device and send packets to vhost::
+
+    ifconfig [ens3] 1.1.1.2
+    #[ens3] is the virtual device name
+    ping 1.1.1.3
+    #send packets to vhost
+
+5. On VM2, also set ip for virtio device and send packets to vhost::
+
+    ifconfig [ens3] 1.1.1.4
+    #[ens3] is the virtual device name
+    ping 1.1.1.5
+    #send packets to vhost
+
+6. Check vhost related cores are waked up with l3fwd-power log.
