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

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

From: Christoph Hellwig <hch@lst.de>
Date: 2023-01-18 08:09:08
Also in: linux-nvme, linux-rdma, lkml, netdev

On Mon, Jan 16, 2023 at 03:05:47PM +0200, Leon Romanovsky wrote:
quoted
From Israel,
The purpose of this patchset is to add support for inline
encryption/decryption of the data at storage protocols like nvmf over
RDMA (at a similar way like integrity is used via unique mkey).

This patchset adds support for plaintext keys. The patches were tested
on BF-3 HW with fscrypt tool to test this feature, which showed reduce
in CPU utilization when comparing at 64k or more IO size. The CPU utilization
was improved by more than 50% comparing to the SW only solution at this case.
One thing that needs to be solved before we can look into this is the
interaction with protection information (or integrity data in Linux
terms).  Currently inline encryption and protection information are
mutally incompatible.
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