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From: Milan Broz <>
To: Israel Rukshin <>, dm-devel <>
Cc: Max Gurtovoy <>,
	Nitzan Carmi <>,
	Eric Biggers <>
Subject: Re: [dm-devel] [RFC PATCH 0/1] Add inline encryption support for dm-crypt
Date: Fri, 14 Jan 2022 21:51:20 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 13/01/2022 19:09, Israel Rukshin wrote:
> Hi,
> I am working to add support for inline encryption/decryption
> at storage protocols like nvmf over RDMA. The HW that I am
> working with is ConnecX-6 Dx, which supports inline crypto
> and can send the data on the fabric at the same time.

This idea comes from time to time, and it makes dm-crypt bloated,
and mainly it moves responsibility for encryption to block layer
It adds two completely different sector encryption paths there.

Also, see my comments here (for similar patches)

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.

Also, please think about configuration - how do you want to configure it?

Just my opinion, it is, of course, up to DM maintainer if he takes such patches.


dm-devel mailing list

  parent reply	other threads:[~2022-01-14 20:51 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-13 18:09 [dm-devel] [RFC PATCH 0/1] Add inline encryption support for dm-crypt Israel Rukshin
2022-01-13 18:09 ` [dm-devel] [PATCH 1/1] dm crypt: Add inline encryption support Israel Rukshin
2022-01-14  8:06   ` Damien Le Moal
2022-01-14  8:14   ` Damien Le Moal
2022-01-16 10:29     ` Israel Rukshin
2022-01-13 21:22 ` [dm-devel] [RFC PATCH 0/1] Add inline encryption support for dm-crypt Bart Van Assche
2022-01-14 20:51 ` Milan Broz [this message]
2022-01-14 22:27   ` Eric Biggers
2022-01-15  9:22     ` Milan Broz
2022-01-18 19:38       ` Eric Biggers
2022-01-19  5:18         ` Christoph Hellwig
2022-01-17  7:52   ` Christoph Hellwig
2022-01-17 10:50     ` Milan Broz
2022-01-17 14:00       ` Israel Rukshin
2022-01-18 16:45         ` Christoph Hellwig
2022-01-18 20:27           ` Eric Biggers
2022-01-19  5:15             ` Christoph Hellwig
2022-01-14 22:49 ` Eric Biggers
2022-01-16 10:15   ` Israel Rukshin
2022-01-18 20:02     ` Eric Biggers
2022-01-19 15:45       ` Israel Rukshin

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