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229. vhost/virtio-user smoke test plan¶

This test plan cover vhost/virtio pvp and loopback topolopy test, split ring and packed ring test, server mode and client mode test, also multi-queues and dynamic queue size test.

229.1. Test Case 1: loopback reconnect test with split ring mergeable path and server mode¶

Launch vhost as client mode with 2 queues:

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0xe -n 4 --no-pci --file-prefix=vhost \
--vdev 'eth_vhost0,iface=vhost-net,client=1,queues=8' -- -i --nb-cores=2 --rxq=2 --txq=2
>set fwd mac
>start

Launch virtio-user as server mode with 8 queues:

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-7 --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,server=1,queues=8,mrg_rxbuf=1,in_order=1 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=2 --rxq=8 --txq=8
>set fwd mac
>start tx_first 32

Stop vhost port and check queue0 and queue1 RX/TX direction both have packets:
```
testpmd>stop
```

Relaunch vhost with 8 queues and send packets:

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0xe -n 4 --no-pci --file-prefix=vhost \
--vdev 'eth_vhost0,iface=vhost-net,client=1,queues=8' -- -i --nb-cores=2 --rxq=8 --txq=8
>set fwd mac
>start tx_first 32
stop
set burst 1
start tx_first 1

Stop vhost port and check queue0 to queue7 RX/TX direction both have packets:
```
testpmd>stop
```

229.2. Test Case 2: pvp test with virtio packed ring vectorized path¶

Bind one port to vfio-pci, then launch vhost by below command:

rm -rf vhost-net*
./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 2-4 --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1' \
-- -i --nb-cores=2 --txd=1024 --rxd=1024
testpmd>set fwd mac
testpmd>start

Launch virtio-user by below command:

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -n 4 -l 5-6 --no-pci --file-prefix=virtio --force-max-simd-bitwidth=512 \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1,queue_size=1024 \
-- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac
testpmd>start

Send 64B and 1518B packets with packet generator, check the throughput with below command:
```
testpmd>show port stats all
```