[dm-devel] [RFC PATCH 0/1] Add inline encryption support for dm-crypt

[Christoph Hellwig]

On Fri, Jan 14, 2022 at 09:51:20PM +0100, Milan Broz wrote:
> I think dm-crypt should stay as SW crypto only (using kernel crypto API,
> so HW acceleration is done through crypto drivers there).
> 
> A cleaner solution is to write a much simpler new dm-crypt-inline target,
> which will implement only inline encryption.
> (And userspace can decide which target to use.)
> Code should be just an extension to the dm-linear target, most
> of dm-crypt complexity is not needed here.

Why do we even need a dm target for this as well?  There should be no
need to clone or remap bios, so I think hamdling inline crypto should be
just a small addition to the core block layer.