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Mon, 10 Nov 2025 12:42:27 -0800 From: Zhi Wang To: , , CC: , , , , , , , , , , , , , , , , , , , , , , , , "Zhi Wang" Subject: [PATCH v6 RESNED 7/7] sample: rust: pci: add tests for config space routines Date: Mon, 10 Nov 2025 22:41:19 +0200 Message-ID: <20251110204119.18351-8-zhiw@nvidia.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251110204119.18351-1-zhiw@nvidia.com> References: <20251110204119.18351-1-zhiw@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000989EC:EE_|IA0PR12MB7700:EE_ X-MS-Office365-Filtering-Correlation-Id: 54f4d464-19e9-458e-7efe-08de2099b889 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?eRraBywqqb2RXy6IKlnQ8ms7PFNhpmoWrtsbFV+6XKUwxbPAvyfQEVZbr/87?= =?us-ascii?Q?p+WfAPbz/ntfM6zQAKM7dumvJQa2zRoi+9mceromF893NoxVmURCnqM9UooX?= =?us-ascii?Q?86NFvHAVpn97Nwz0w1i1WAN7mRKOUIIyTi2mVkDUOAWP+F88KuGkae5Yq11y?= =?us-ascii?Q?tPytH9uEv1b/ATjH8AuxAxKE7HfWyjabkKBkIOFkYWqDqvLCoGqmiwTP//pj?= =?us-ascii?Q?O7Kt+MFyb/f28bkawYTMgwW3L6unznqy59vNjy+r+66KLLa2IMZDLjy7JNXq?= =?us-ascii?Q?Vb4oCHt3PODYUPmh3WhQnWZ2/dkLkniezrIO2niIhgSbFaPN3tGLn6bHJklz?= =?us-ascii?Q?C4pGeh3LnEstCCvQPq0f/a68vig7tNAfp1pNPGQt2NyKhOfXKLcavFu7tp5i?= =?us-ascii?Q?nvzIXxzCucGQTqEezQUams6bw52GQUBPdNtEOeEuRH59MclUPDLgJkhI2JtM?= =?us-ascii?Q?o8lKtoPHiqpTqwGkNQBfpEuoGDfoTAXRyhDGYTIatNh+hE0epAD+qAfQnlHJ?= =?us-ascii?Q?xMyFXrtJqYPRY0mv8drdvxLlvj6rnxevEi9n3HleE/J4BIzaIokl0ycFj64s?= =?us-ascii?Q?vmA6l/7wZsh+2h1/VDzNY48ZffftQUoIFw7Uo91Q/UR56FZVkrPa8s/iJ7c2?= =?us-ascii?Q?3fX2Mj64yJjdNRAhsMr4XU/R0id3Lgv3iPEc6u0sLxtGsFLb2DKlumnjXlWP?= =?us-ascii?Q?7FQtYP+JEQqWcUyZ9oZSHXjX0FIZTzB/K4WJUr4yoNPRBlOPaM+L5CbHYL47?= =?us-ascii?Q?sEZe8MVlMI6oYgu4zl0fCC2Xb7xcoUXrvATvh9Mu7soFbaC7NWTvCi2CB/r1?= =?us-ascii?Q?q4E/zDB0uAPjGr//U/3AN2T/anvHxJUhFq3pCOlCZvZxy44Kso+qW0DZlETh?= =?us-ascii?Q?kjM9QjhQxlu5irx4S3AjrV0lTgtPSYZzmYSS9pj8l++Ggm6vtyjWBC1iTQ6d?= =?us-ascii?Q?io+rMoNk0rC44M5fF45p3+nYuqmQ4ivcH5YiTwdxQ4rAf/i6LgX1NjgMGpR5?= =?us-ascii?Q?it6KSmrP7nvTwrRcqGOHyrsZBYMegQYYOI2a1CRuTajIADHpIRueCfc2yU1Z?= =?us-ascii?Q?TO2+qYb8lG43O+OXWSMtT8IAWZoc9NCl4FxL+WFQJr1vrFZO+w9wxjoj5MV7?= =?us-ascii?Q?81mgSY5uh9VYDAUAfUgIxLC53NUUavgDG6ow/W4JFkwcK5LzIqYgyPHBZEIF?= =?us-ascii?Q?NxaCEZGBsPd+PhFnZmrbVizQUwaRpK9n6+Y8TOHy6sH1G4YQwGMtoqeoM0In?= =?us-ascii?Q?W0bdVNgmjrKVBic/VDXbL23Km6XohNAfjY/OFlKw0ZOyy/hNqEjz18/zy59l?= =?us-ascii?Q?dsLFPbjGrhvx3WZt74wbeEuBUF7AFnSI1u9MMeESOKeSB2gU39KCqvqtAATA?= =?us-ascii?Q?P4QXKC8+bJk1+duBlQBT3e1Do3E3l83uu3nPrds7zFgOkbB+onQv0bwx42Ej?= =?us-ascii?Q?bsBoNmsQOpTOsH09aICIukEjtIcE1Hx7t2i7b5AfORk7yeYbZTaHWAT3v6EB?= =?us-ascii?Q?4XriTENEYFg7609YSF2aabf4S8hj897NTkmDNFrkl1Sri3D5ToQl/BWi1/sV?= =?us-ascii?Q?j6fnCK2B/gOnT8avQsc=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Nov 2025 20:42:53.0372 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 54f4d464-19e9-458e-7efe-08de2099b889 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000989EC.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB7700 Content-Type: text/plain; charset="utf-8" Add tests exercising the PCI configuration space helpers. Suggested-by: Danilo Krummrich Signed-off-by: Zhi Wang --- samples/rust/rust_driver_pci.rs | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/samples/rust/rust_driver_pci.rs b/samples/rust/rust_driver_pci= .rs index 74b93ca7c338..8f549b2100bc 100644 --- a/samples/rust/rust_driver_pci.rs +++ b/samples/rust/rust_driver_pci.rs @@ -67,6 +67,32 @@ fn testdev(index: &TestIndex, bar: &Bar0) -> Result= { =20 Ok(bar.read32(Regs::COUNT)) } + + fn config_space(pdev: &pci::Device) -> Result { + let config =3D pdev.config_space()?; + + // TODO: use the register!() macro for defining PCI configuration = space registers once it + // has been move out of nova-core. + dev_info!( + pdev.as_ref(), + "pci-testdev config space read8 rev ID: {:x}\n", + config.read8(0x8) + ); + + dev_info!( + pdev.as_ref(), + "pci-testdev config space read16 vendor ID: {:x}\n", + config.read16(0) + ); + + dev_info!( + pdev.as_ref(), + "pci-testdev config space read32 BAR 0: {:x}\n", + config.read32(0x10) + ); + + Ok(()) + } } =20 impl pci::Driver for SampleDriver { @@ -98,6 +124,7 @@ fn probe(pdev: &pci::Device, info: &Self::IdInfo) = -> impl PinInit