Thread (38 messages) 38 messages, 9 authors, 2023-02-14

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

From: Sagi Grimberg <sagi@grimberg.me>
Date: 2023-02-14 10:03:44
Also in: linux-nvme, linux-rdma, linux-trace-kernel, lkml

quoted
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.
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...
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