What's the difference between rdma-shared-device and sr-iov?

[Saigut]

What's the difference between rdma-shared-device and sr-iov?
Or what documentation I should to read.

Thanks.

[schmaustech]

My interpretation of RDMA shared vs SRIOV is as follows:

RDMA shared allows you to share one network device among many pods but without direct hardware access like host device or SRIOV. Whereas SRIOV capable cards enable you to share hardware up to the number of VFs the card supports with hardware access of those VFs making it ideal for low latency, high throughput workloads.

So for example I might gear rdma shared toward developer environments where its more about testing feature functionality. In that setting I can share one network device with many pods.

Whereas if I need to do performance testing and my card is SRIOV capable with 8 VFs, I can now have 8 different pods getting performance network access.