156. Vhost-user built-in net driver test plan

156.1. Description

This feature test a very simple vhost-user net driver which demonstrates how to use the generic vhost APIs by adding option “–builtin-net-driver” when launch vswitch. This feature only can test with vswitch, and it is disabled by default.

156.2. Test Case1: PVP test with vhost built-in net driver

1. Bind one port to igb_uio, launch vswitch:

   ./vhost-switch -l 1-2 -n 4 --socket-mem 2048,2048 -- \
   -p 0x1 --mergeable 0 --vm2vm 1 --builtin-net-driver  --socket-file ./vhost-net
   

2. Launch virtio-user:

   ./testpmd -l 3-4 -n 4  --no-pci --socket-mem 2048,2048 --file-prefix=virtio-user \
   --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net,queues=1 -- -i --rxq=1 --txq=1
   testpmd>set fwd mac      # ixia can't receive packets when io fwd, packtes still fwd to virtio-user with the dest mac addr
   testpmd>start tx_first   # send packets from virtio-user first to let vswitch know the mac addr
   

3. Send traffic with (vlan_id = 1000, dest mac addr = 00:11:22:33:44:10) and different packet size includes [64, 128, 256, 512, 1024, 1518] by packet generator, check the throughput with below command:

   testpmd>show port stats all