VHOST-USER-RDMA

A vhost-user-rdma demo

Build

• Download and install dpdk (we only tested with dpdk-stable-20.11.3).

• Build vhost-user-rdma

mkdir build
meson build
cd build
ninja

Run

• Start vhost-user-rdma

sudo ./vhost-user-rdma --vdev 'net_tap0' --lcore '1-3' -- -s '/tmp/vhost-rdma0'

• Run QEMU [1] with command

qemu-system-x86_64 -chardev socket,path=/tmp/vhost-rdma0,id=vrdma \
    -device vhost-user-rdma-pci,page-per-vq,chardev=vrdma ...

[1] https://github.com/bytedance/qemu/tree/vhost-user-rdma

DEBUG

Add following to meson.build to debug.

c_args: [
    '-DDEBUG_RDMA',
    '-DDEBUG_RDMA_DP',
    '-DDEBUG_ETHERNET',
]

• DEBUG_RDMA: RDMA control panel
• DEBUG_RDMA_DP: RDMA data panel
• DEBUG_ETHERNET: Ethernet