On 30/01/2023 14:35, Christoph Hellwig wrote:

On Wed, Jan 18, 2023 at 04:20:27PM +0200, Max Gurtovoy wrote:

quoted

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.
We are interested in doing this IO path but doing all in 1 series 
doesn't sounds possible.

First we would like to have at least the mutual exclusive solution since 
there are users that may want only one type of acceleration.

re-designing, both blk layer and ib_core for the PI + CRYPTO case in 
this series is not feasible IMO.