From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RFC] crypto: passing configuration parameters to comp algos
Date: Tue, 30 Apr 2024 12:04:47 +0900 [thread overview]
Message-ID: <20240430030447.GE14947@google.com> (raw)
Hi,
We'd like to be able to pass algorithm-specific parameters to
comp backends. As of this moment, crypto usees hard-coded default
values and does not permit any run-time algorithm configuration,
which in some cases simply disables the most interesting functionality.
E.g. zstd can be configured to use a pre-trained (in the user-space)
compression dictionary, which significantly changes algorithms
characteristics. Another, obvious and trivial example, is algorithms
compression level.
The problem is that we need to pass params to cra_init() function,
because for some algorithms that's the only place where configuration
can take place (e.g. zstd). Changing cra_init() to accept additional
`struct crypto_comp_params` looks to be a little intrusive so before
I write any patches I'd like to hear your thoughts.
next reply other threads:[~2024-04-30 3:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 3:04 Sergey Senozhatsky [this message]
2024-04-30 3:18 ` [RFC] crypto: passing configuration parameters to comp algos Eric Biggers
2024-04-30 3:28 ` Sergey Senozhatsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240430030447.GE14947@google.com \
--to=senozhatsky@chromium.org \
--cc=davem@davemloft.net \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).