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[84.248.220.251]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54fc644fa48sm1460449e87.1.2025.05.12.02.56.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 May 2025 02:56:19 -0700 (PDT) From: Abdiel Janulgue To: dakr@kernel.org, lyude@redhat.com Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Valentin Obst , linux-kernel@vger.kernel.org (open list), Marek Szyprowski , Robin Murphy , airlied@redhat.com, rust-for-linux@vger.kernel.org, iommu@lists.linux.dev (open list:DMA MAPPING HELPERS), Petr Tesarik , Andrew Morton , Herbert Xu , Sui Jingfeng , Randy Dunlap , Michael Kelley , Abdiel Janulgue Subject: [RFC PATCH 2/2] samples: rust: add sample code for scatterlist bindings Date: Mon, 12 May 2025 12:53:28 +0300 Message-ID: <20250512095544.3334680-3-abdiel.janulgue@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250512095544.3334680-1-abdiel.janulgue@gmail.com> References: <20250512095544.3334680-1-abdiel.janulgue@gmail.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add simple excercises to test the scatterlist bindings. Signed-off-by: Abdiel Janulgue --- samples/rust/rust_dma.rs | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/samples/rust/rust_dma.rs b/samples/rust/rust_dma.rs index 874c2c964afa..e3768c1a16b7 100644 --- a/samples/rust/rust_dma.rs +++ b/samples/rust/rust_dma.rs @@ -4,11 +4,15 @@ //! //! To make this driver probe, QEMU must be run with `-device pci-testdev`. -use kernel::{bindings, device::Core, dma::CoherentAllocation, pci, prelude::*, types::ARef}; +use kernel::{ + bindings, device::Core, dma::CoherentAllocation, page::*, pci, prelude::*, + scatterlist::DmaDataDirection::*, scatterlist::*, types::ARef, +}; struct DmaSampleDriver { pdev: ARef, ca: CoherentAllocation, + _sgt: DeviceSGTable, } const TEST_VALUES: [(u32, u32); 5] = [ @@ -62,10 +66,18 @@ fn probe(pdev: &pci::Device, _info: &Self::IdInfo) -> Result