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Wed, 19 Nov 2025 14:19:18 -0800 (PST) Received: from [172.16.1.8] ([2607:f2c0:b141:ac00:ca1:dc8c:d6d0:7e87]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8846e447304sm4426866d6.4.2025.11.19.14.19.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Nov 2025 14:19:18 -0800 (PST) From: Peter Colberg Date: Wed, 19 Nov 2025 17:19:06 -0500 Subject: [PATCH 2/8] rust: pci: add is_physfn(), to check for PFs Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251119-rust-pci-sriov-v1-2-883a94599a97@redhat.com> References: <20251119-rust-pci-sriov-v1-0-883a94599a97@redhat.com> In-Reply-To: <20251119-rust-pci-sriov-v1-0-883a94599a97@redhat.com> To: Danilo Krummrich , Bjorn Helgaas , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Abdiel Janulgue , Daniel Almeida , Robin Murphy , Greg Kroah-Hartman , Dave Ertman , Ira Weiny , Leon Romanovsky Cc: linux-pci@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandre Courbot , Alistair Popple , Joel Fernandes , John Hubbard , Zhi Wang , Peter Colberg , Jason Gunthorpe X-Mailer: b4 0.14.2 Add a method to check if a PCI device is a Physical Function (PF). Signed-off-by: Peter Colberg --- rust/kernel/pci.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index c20b8daeb7aadbef9f6ecfc48c972436efac9a08..814990d386708fe2ac652ccaa67= 4c10a6cf390cb 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -409,6 +409,12 @@ pub fn resource_start(&self, bar: u32) -> Result { Ok(unsafe { bindings::pci_resource_start(self.as_raw(), bar.try_in= to()?) }) } =20 + /// Returns `true` if this device is a Physical Function (VF). + pub fn is_physfn(&self) -> bool { + // SAFETY: `self.as_raw` is a valid pointer to a `struct pci_dev`. + unsafe { (*self.as_raw()).is_physfn() !=3D 0 } + } + /// Returns `true` if this device is a Virtual Function (VF). pub fn is_virtfn(&self) -> bool { // SAFETY: `self.as_raw` is a valid pointer to a `struct pci_dev`. --=20 2.51.1