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From: Danilo Krummrich <dakr@kernel.org>
To: Daniel Almeida <daniel.almeida@collabora.com>
Cc: "Jason Gunthorpe" <jgg@ziepe.ca>,
	"Abdiel Janulgue" <abdiel.janulgue@gmail.com>,
	lyude@redhat.com, "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: [RFC PATCH 1/2] rust: add initial scatterlist bindings
Date: Mon, 12 May 2025 22:10:07 +0200	[thread overview]
Message-ID: <aCJVn4LCCoe35SrU@cassiopeiae> (raw)
In-Reply-To: <AC0FC018-4440-4027-9943-12FFB481AA6E@collabora.com>

On Mon, May 12, 2025 at 05:01:45PM -0300, Daniel Almeida wrote:
> Hi Jason,
> 
> >> +
> >> +    /// Map this scatter-gather table describing a buffer for DMA.
> >> +    pub fn dma_map(&mut self, dir: DmaDataDirection) -> Result {
> >> +        // SAFETY: Invariants on `Device` and `SGTable` ensures that the `self.dev` and `self.sg`
> >> +        // pointers are valid.
> >> +        let ret = unsafe {
> >> +            bindings::dma_map_sgtable(
> >> +                self.dev.as_raw(),
> >> +                self.sg.as_raw(),
> > 
> > Can't call this function on an unbound driver, didn't someone add
> > special types for this recently?
> 
> JFYI: I think that the “Bound” state is still WIP and not upstream yet.

It's in driver-core-next and queued up for v6.16.

There's also a signed tag [1] that can be merged into other trees, such that
this can be used right away.

- Danilo

[1] https://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core.git/tag/?h=topic/device-context-2025-04-17

  reply	other threads:[~2025-05-12 20:10 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-12  9:53 [RFC PATCH 0/2] scatterlist rust bindings Abdiel Janulgue
2025-05-12  9:53 ` [RFC PATCH 1/2] rust: add initial scatterlist bindings Abdiel Janulgue
2025-05-12 11:39   ` Daniel Almeida
2025-05-15 19:26     ` Lyude Paul
2025-05-15 21:11     ` Danilo Krummrich
2025-05-16 16:57       ` Daniel Almeida
2025-05-16 17:55         ` Danilo Krummrich
2025-05-12 16:42   ` Jason Gunthorpe
2025-05-12 20:01     ` Daniel Almeida
2025-05-12 20:10       ` Danilo Krummrich [this message]
2025-05-14  8:29   ` Alexandre Courbot
2025-05-14 12:50     ` Alexandre Courbot
2025-05-16  7:52       ` Abdiel Janulgue
2025-05-15 20:01   ` Lyude Paul
2025-05-16  7:52     ` Abdiel Janulgue
2025-05-26 13:04     ` Abdiel Janulgue
2025-05-12  9:53 ` [RFC PATCH 2/2] samples: rust: add sample code for " Abdiel Janulgue
2025-05-12 11:19 ` [RFC PATCH 0/2] scatterlist rust bindings Daniel Almeida
2025-05-14  7:00   ` Abdiel Janulgue
2025-05-14 12:12     ` Marek Szyprowski
2025-05-16  7:47       ` Abdiel Janulgue
2025-05-13  2:19 ` Herbert Xu
2025-05-13  5:50   ` Christoph Hellwig
2025-05-13  7:38     ` Petr Tesařík

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