206. vm2vm vhost-user/virtio-net test plan¶

206.1. Description¶

This test plan test several features in VM2VM topo: 1. Check Vhost tx offload (TSO and UFO) function by verifing the TSO/cksum in the TCP/IP stack and UFO/cksum in the UDP/IP stack with vm2vm split ring and packed ring vhost-user/virtio-net mergeable path. 2. Check the payload of large packet (larger than 1MB) is valid after forwarding packets with vm2vm split ring and packed ring vhost-user/virtio-net mergeable and non-mergeable path. 3. Multi-queues number dynamic change in vm2vm vhost-user/virtio-net with split ring and packed ring. 4. Check function and performance of split ring enqueue operation with multi-CBDMA channels. Note: For packed virtqueue virtio-net test, need qemu version > 4.2.0 and VM kernel version > v5.1.

206.2. Test flow¶

Virtio-net <-> Vhost <-> Testpmd <-> Vhost <-> Virtio-net

206.3. Test Case 1: VM2VM split ring vhost-user/virtio-net test with tcp traffic¶

Launch the Vhost sample on socket 0 by below commands:

rm -rf vhost-net*
./dpdk-testpmd -l 2-4 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
--vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
testpmd>start

Launch VM1 and VM2 on socket 1:

taskset -c 32 qemu-system-x86_64 -name 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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :10

taskset -c 33 qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -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 -vnc :12

On VM1, set virtio device IP and run arp protocal:

ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Check the iperf performance with different packet size between two VMs by below commands:
```
Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`
```

Check 2VMs can receive and send big packets to each other:

testpmd>show port xstats all
Port 0 should have tx packets above 1522
Port 1 should have rx packets above 1522

206.4. Test Case 2: VM2VM split ring vhost-user/virtio-net CBDMA enable test with tcp traffic¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -l 2-4 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1,dmas=[txq0@00:04.0],dmathr=512' \
--vdev 'net_vhost1,iface=vhost-net1,queues=1,dmas=[txq0@00:04.1],dmathr=512'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
testpmd>start

Launch VM1 and VM2 on socket 1:

taskset -c 32 qemu-system-x86_64 -name 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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :10

taskset -c 33 qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -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 -vnc :12

On VM1, set virtio device IP and run arp protocal:

ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`

Check 2VMs can receive and send big packets to each other:

testpmd>show port xstats all
Port 0 should have tx packets above 1522
Port 1 should have rx packets above 1522

Check throughput and compare with case1, case2 performance should larger than case1.

206.5. Test Case 3: VM2VM split ring vhost-user/virtio-net test with udp traffic¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -c 0xF0000000 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
--vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>start

Launch VM1 and VM2:

qemu-system-x86_64 -name 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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10

qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-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,guest_ufo=on,host_ufo=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ifconfig ens3 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ifconfig ens3 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -u -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 30 -P 4 -u -b 1G -l 9000`

Check 2VMs can receive and send big packets to each other:

testpmd>show port xstats all
Port 0 should have tx packets above 1522
Port 1 should have rx packets above 1522

206.6. Test Case 4: Check split ring virtio-net device capability¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -c 0xF0000000 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
--vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
testpmd>start

Launch VM1 and VM2,set TSO and UFO on in qemu command:

qemu-system-x86_64 -name 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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10

qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -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,guest_ufo=on,host_ufo=on -vnc :12

Check UFO and TSO offload status on for the Virtio-net driver on VM1 and VM2:

Under VM1, run: `run ethtool -k ens3`
udp-fragmentation-offload: on
tx-tcp-segmentation: on
tx-tcp-ecn-segmentation: on
tx-tcp6-segmentation: on

Under VM2, run: `run ethtool -k ens3`
udp-fragmentation-offload: on
tx-tcp-segmentation: on
tx-tcp-ecn-segmentation: on
tx-tcp6-segmentation: on

206.7. Test Case 5: VM2VM virtio-net split ring mergeable 8 queues CBDMA enable test with large packet payload valid check¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8,dmas=[txq0@00:04.0;txq1@00:04.1;txq2@00:04.2;txq3@00:04.3;txq4@00:04.4;txq5@00:04.5;txq6@00:04.6;txq7@00:04.7],dmathr=512' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8,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],dmathr=512'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8
testpmd>start

Launch VM1 and VM2 using qemu3.0:

taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0,server \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10

taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu16-2.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-net1,server -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`

Quit vhost ports and relaunch vhost ports w/o CBDMA channels:

./dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8
testpmd>start

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance and compare with CBDMA enable performance, ensure CMDMA enable performance is higher:
```
Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`
```

Quit vhost ports and relaunch vhost ports with 1 queues:

./dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=1 --txq=1
testpmd>start

Scp 1MB file form VM1 to VM2M, check packets can be forwarding success by scp:
```
Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name
```

Check the iperf performance, ensure queue0 can work from vhost side:

Under VM1, run: `taskset -c 0 iperf -s -i 1`
Under VM2, run: `taskset -c 0 iperf -c 1.1.1.2 -i 1 -t 60`

206.8. Test Case 6: VM2VM virtio-net split ring non-mergeable 8 queues CBDMA enable test with large packet payload valid check¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8,dmas=[txq0@00:04.0;txq1@00:04.1;txq2@00:04.2;txq3@00:04.3;txq4@00:04.4;txq5@00:04.5;txq6@00:04.6;txq7@00:04.7],dmathr=512' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8,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],dmathr=512'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8
testpmd>start

Launch VM1 and VM2 using qemu3.0:

taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0,server \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10

taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu16-2.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-net1,server -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`

Quit vhost ports and relaunch vhost ports w/o CBDMA channels:

./dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8
testpmd>start

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance and compare with CBDMA enable performance, ensure CMDMA enable performance is higher:
```
Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`
```

Quit vhost ports and relaunch vhost ports with 1 queues:

./dpdk-testpmd -l 1-5 -n 4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=1 --txq=1
testpmd>start

Scp 1MB file form VM1 to VM2M, check packets can be forwarding success by scp:
```
Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name
```

Check the iperf performance, ensure queue0 can work from vhost side:

Under VM1, run: `taskset -c 0 iperf -s -i 1`
Under VM2, run: `taskset -c 0 iperf -c 1.1.1.2 -i 1 -t 60`

206.9. Test Case 7: VM2VM packed ring vhost-user/virtio-net test with tcp traffic¶

Launch the Vhost sample by below commands::,packed=on

rm -rf vhost-net* ./dpdk-testpmd -l 2-4 -n 4 –no-pci –file-prefix=vhost –vdev ‘net_vhost0,iface=vhost-net0,queues=1’ –vdev ‘net_vhost1,iface=vhost-net1,queues=1’ – -i –nb-cores=2 –txd=1024 –rxd=1024 testpmd>start

Launch VM1 and VM2:

qemu-system-x86_64 -name 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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10

qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -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,packed=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`

Check 2VMs can receive and send big packets to each other:

testpmd>show port xstats all
Port 0 should have tx packets above 1522
Port 1 should have rx packets above 1522

206.10. Test Case 8: VM2VM packed ring vhost-user/virtio-net test with udp traffic¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -c 0xF0000000 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
--vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
testpmd>start

Launch VM1 and VM2:

qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 40 -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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10

qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -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,packed=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ifconfig ens3 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ifconfig ens3 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -u -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 30 -P 4 -u -b 1G -l 9000`

Check 2VMs can receive and send big packets to each other:

testpmd>show port xstats all
Port 0 should have tx packets above 1522
Port 1 should have rx packets above 1522

206.11. Test Case 9: Check packed ring virtio-net device capability¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -c 0xF0000000 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
--vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
testpmd>start

Launch VM1 and VM2,set TSO and UFO on in qemu command:
```
qemu-system-x86_64 -name 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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0 \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
```
qemu-system-x86_64 -name vm2 -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/ubuntu16-2.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-net1 -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce -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,host_ufo=on,guest_ufo=on,guest_ecn=on,packed=on -vnc :12

Check UFO and TSO offload status on for the Virtio-net driver on VM1 and VM2:

Under VM1, run: `run ethtool -k ens3`
udp-fragmentation-offload: on
tx-tcp-segmentation: on
tx-tcp-ecn-segmentation: on
tx-tcp6-segmentation: on

Under VM2, run: `run ethtool -k ens3`
udp-fragmentation-offload: on
tx-tcp-segmentation: on
tx-tcp-ecn-segmentation: on
tx-tcp6-segmentation: on

206.12. Test Case 10: VM2VM virtio-net packed ring mergeable dynamic queues test with large packet payload valid check¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -l 1-5 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8
testpmd>start

Launch VM1 and VM2 using qemu3.0:

taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0,server \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10

taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu16-2.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-net1,server -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`

Quit vhost ports and relaunch vhost ports with 1 queues:

./dpdk-testpmd -l 1-5 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=1 --txq=1
testpmd>start

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance, ensure queue0 can work from vhost side:

Under VM1, run: `taskset -c 0 iperf -s -i 1`
Under VM2, run: `taskset -c 0 iperf -c 1.1.1.2 -i 1 -t 60`

206.13. Test Case 11: VM2VM virtio-net packed ring non-mergeable dynamic queues test with large packet payload valid check¶

Launch the Vhost sample by below commands:

rm -rf vhost-net*
./dpdk-testpmd -l 1-5 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=8 --txq=8
testpmd>start

Launch VM1 and VM2 using qemu3.0:

taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu16.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:127.0.0.1:6002-:22 \
-chardev socket,id=char0,path=./vhost-net0,server \
-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10

taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu16-2.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-net1,server -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12

On VM1, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.2
arp -s 1.1.1.8 52:54:00:00:00:02

On VM2, set virtio device IP and run arp protocal:

ethtool -L ens5 combined 8
ifconfig ens5 1.1.1.8
arp -s 1.1.1.2 52:54:00:00:00:01

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance between two VMs by below commands:

Under VM1, run: `iperf -s -i 1`
Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`

Quit vhost ports and relaunch vhost ports with 1 queues:

./dpdk-testpmd -l 1-5 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,client=1,queues=8' \
--vdev 'net_vhost1,iface=vhost-net1,client=1,queues=8'  -- -i --nb-cores=4 --txd=1024 --rxd=1024 --rxq=1 --txq=1
testpmd>start

Scp 1MB file form VM1 to VM2:

Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name

Check the iperf performance, ensure queue0 can work from vhost side:

Under VM1, run: `taskset -c 0 iperf -s -i 1`
Under VM2, run: `taskset -c 0 iperf -c 1.1.1.2 -i 1 -t 60`