Re: Using aGPU for RAID calculations (proprietary GRAID SupremeRAID)

[Keith Busch]

On Tue, Nov 30, 2021 at 12:58:10PM +0100, Paul Menzel wrote:
> If GPUs are that much better, are people already working on a FLOSS solution
> for the Linux kernel, so people can “just” plug in a graphics card to
> increase the speed?
> 
> Does the Linux kernel already have an API to offload calculations to
> accelerator cards, so it’s basically plug and play (with AMD graphics cards
> for example using HSA/KFD)? Entropy sources, like the ChaosKey [3], work
> like that. If not, would the implementation go under `lib/raid6`?

I'm not very familiar with the subsystem, but I think these types of
operation APIs are implemented under crypto/async_tx/.