Re: [PATCH rdma-next 00/13] Add RDMA inline crypto support

[Sagi Grimberg]

> > > Today, if one would like to run both features using a capable device 
> > > then
> > > the PI will be offloaded (no SW fallback) and the Encryption will be 
> > > using
> > > SW fallback.
> > It's not just running both - it's offering both as currently registering
> > these fatures is mutally incompatible.
>
> For sure we would like to offer both, but as mentioned before, this will 
> require blk layer instrumentation and ib_core instrumentation to some 
> pipeline_mr or something like that.

Can you explain what is needed in the block layer that prevents queueing
a request that has PI and crypto ctx?

As for the rdma portion, I don't know enough if this is something
that is supported by the HW and lacks a SW interface, or inherently
unsupported in HW...