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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: K2JAcU6gHHtz9lBvEsCrIOrS1PWMx+faHakQjOjaCNmTa5yXOdDSHWQiKRasZiiIA03vrj39YhMnYRnot/ONpJzMdX4JMLOhDIzsf1JvIS0MXAdBONWJRtJ99TePvxxoVHKHV2GIAkSyszQLo1q1LbvizyLibgfY9NpgblF1ggBnYQab9kCNEgkz6byZljqb4EiHrGkItO55u2gsXRKxbqHVXwEcGZwdQlond66/c1rGstF6iF0VMN+q0YOpl88js+SjGxVrz3YB5P5EbrE2wxPTIi3MlZwe3ixvymjU/2W9KeKgcwQhDOsFRsiOFASQXDifWesLR+yv7mhJxdC9WpSnl/Ck5k+O/H2P2Hs7jDAa/h4hUWNrVmojEqy8PdM9vV50KQus2zI2MlKbBINVfWsxzSNkTOXsYvANYbiA/7Xth51ZXI23RyZh/C6zFJXF X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Sep 2026 19:07:08.9771 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3f28c723-e715-4256-534b-08df1a6f083a X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF0000449D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW6PR12MB8706 From: John Hubbard Add a method to check if a PCI device is a Virtual Function (VF) created through Single Root I/O Virtualization (SR-IOV). Signed-off-by: John Hubbard Reviewed-by: Alistair Popple Reviewed-by: Joel Fernandes Signed-off-by: Peter Colberg Signed-off-by: Zhi Wang --- rust/kernel/pci.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index 622cf91fe5e3..b04f6aff6c34 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -433,6 +433,14 @@ pub fn resource_start(&self, bar: u32) -> Result { Ok(unsafe { bindings::pci_resource_start(self.as_raw(), bar.try_into()?) }) } + /// Returns `true` if this device is a Virtual Function (VF). + #[inline] + #[expect(dead_code)] + pub(crate) fn is_virtfn(&self) -> bool { + // SAFETY: `self.as_raw` is a valid pointer to a `struct pci_dev`. + unsafe { (*self.as_raw()).is_virtfn() != 0 } + } + /// Returns the size of the given PCI BAR resource. pub fn resource_len(&self, bar: u32) -> Result { if !Bar::index_is_valid(bar) { -- 2.53.0