From: "Alexandre Courbot" <acourbot@nvidia.com>
To: "Alexandre Courbot" <acourbot@nvidia.com>,
"Abdiel Janulgue" <abdiel.janulgue@gmail.com>, <jgg@ziepe.ca>,
<lyude@redhat.com>, <dakr@kernel.org>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Valentin Obst" <kernel@valentinobst.de>,
"open list" <linux-kernel@vger.kernel.org>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Robin Murphy" <robin.murphy@arm.com>,
airlied@redhat.com, rust-for-linux@vger.kernel.org,
"open list:DMA MAPPING HELPERS" <iommu@lists.linux.dev>,
"Petr Tesarik" <petr@tesarici.cz>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Sui Jingfeng" <sui.jingfeng@linux.dev>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Michael Kelley" <mhklinux@outlook.com>
Subject: Re: [PATCH v2 1/2] rust: add initial scatterlist bindings
Date: Thu, 03 Jul 2025 16:03:51 +0900 [thread overview]
Message-ID: <DB288AEQSBTC.63WK79TB77TW@nvidia.com> (raw)
In-Reply-To: <DB17XMDHU5M7.2M2KN9A8TJQOB@nvidia.com>
On Wed Jul 2, 2025 at 11:37 AM JST, Alexandre Courbot wrote:
> Thoughts? If Abdiel is comfortable with this I can submit a v3 with this design
> for review (putting myself as co-developer), on which Abdiel could then keep
> iterating, as I suspect this would be easier to understand than this long email
> :).
Figured I could just as well share the code with you and save both of us
some time. ^_^;
The top commit of this branch contains the proposal discussed:
https://github.com/Gnurou/linux/tree/scatterlists
The sample code has been updated to add dummy examples for the 3
use-cases discussed (reference to an existing `sg_table`, refcounted
reference, and owned data).
There are still things missing, including the typestate on `SGEntry`, as
it wasn't necessary to demonstrate the basic idea.
Note also that if we decide to only support DMA-mapped SG-entries, we
can remove a bunch of code, including the one that maps a `SGTable` if
the backing type implements `BorrowMut`.
For your consideration. :) Please feel free to take and use anything you
find useful.
next prev parent reply other threads:[~2025-07-03 7:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-26 20:30 [PATCH v2 0/2] rust: add initial scatterlist abstraction Abdiel Janulgue
2025-06-26 20:30 ` [PATCH v2 1/2] rust: add initial scatterlist bindings Abdiel Janulgue
2025-06-30 8:34 ` Alexandre Courbot
2025-06-30 12:56 ` Alexandre Courbot
2025-07-02 2:37 ` Alexandre Courbot
2025-07-03 7:03 ` Alexandre Courbot [this message]
2025-07-09 11:59 ` Abdiel Janulgue
2025-07-11 7:05 ` Alexandre Courbot
2025-06-26 20:30 ` [PATCH v2 2/2] samples: rust: add sample code for " Abdiel Janulgue
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=DB288AEQSBTC.63WK79TB77TW@nvidia.com \
--to=acourbot@nvidia.com \
--cc=a.hindborg@kernel.org \
--cc=abdiel.janulgue@gmail.com \
--cc=airlied@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=alex.gaynor@gmail.com \
--cc=aliceryhl@google.com \
--cc=benno.lossin@proton.me \
--cc=bjorn3_gh@protonmail.com \
--cc=boqun.feng@gmail.com \
--cc=dakr@kernel.org \
--cc=gary@garyguo.net \
--cc=herbert@gondor.apana.org.au \
--cc=iommu@lists.linux.dev \
--cc=jgg@ziepe.ca \
--cc=kernel@valentinobst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=lyude@redhat.com \
--cc=m.szyprowski@samsung.com \
--cc=mhklinux@outlook.com \
--cc=ojeda@kernel.org \
--cc=petr@tesarici.cz \
--cc=rdunlap@infradead.org \
--cc=robin.murphy@arm.com \
--cc=rust-for-linux@vger.kernel.org \
--cc=sui.jingfeng@linux.dev \
--cc=tmgross@umich.edu \
/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 NNTP newsgroup(s).