From nobody Tue Dec 2 02:29:04 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4E4373191A2 for ; Wed, 19 Nov 2025 22:19:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763590767; cv=none; b=rtwdN8naPMOf1xnI5EFPQZ9t8MlJcVGLv6/rneE+lwTAdf7XWPil+qfnUTZwcsa5xV11xK6jMt2VhER89HDZHplMySpuHFwkGbFvDQejF6cyJZZgCxgf57XkUGwD1/w75g6tU1CXFE8k3KM9NUbhvMN21zYierwoalI8aIwqIyM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763590767; c=relaxed/simple; bh=bzTncOXNg0kWII0nt+8w8axDxjNbZrgM9o9apzDdqZw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KSBw7uM3C68rrXNW+ZUlyOhTq3ZMpBtam3XdPPbC/wdPhPgWlb2P0+E8UblW0NDpppAjrdIRjGeC6Bxrc5Cyga8KmoKjok2XxedDmrxMmrGcYRWcPY94d15AdW7aS+HicTLp+quQk9Wq0jQlGrsrEkc69CPZV1dq0MuNxoRTX04= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Y4+JqAoL; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b=AuHKdonC; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Y4+JqAoL"; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b="AuHKdonC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1763590764; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0Sa/28IBowGRnEwfZcsKNnT8Zyd6t02o7EkUf+OoZOM=; b=Y4+JqAoL6D/LyDC0ckfdxl49xmpb+eDn52Ei6IiCQ5MJRk3fJT5pajM60M4Wul8HBTjGPi LldI/M00hlJLHtkH7+WfPSE96cEkNqOphFjkNtBY9VmfyIZt3Cn7zyWfRH70tSbSj3yt6m aZ4G/0Ux8B11CPIkxfmvclQEbLrYZno= Received: from mail-qt1-f200.google.com (mail-qt1-f200.google.com [209.85.160.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-248-2eQ3qNBUPiyqvjNFuTvKaQ-1; Wed, 19 Nov 2025 17:19:23 -0500 X-MC-Unique: 2eQ3qNBUPiyqvjNFuTvKaQ-1 X-Mimecast-MFC-AGG-ID: 2eQ3qNBUPiyqvjNFuTvKaQ_1763590762 Received: by mail-qt1-f200.google.com with SMTP id d75a77b69052e-4ee0c1c57bcso9074301cf.2 for ; Wed, 19 Nov 2025 14:19:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1763590762; x=1764195562; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=0Sa/28IBowGRnEwfZcsKNnT8Zyd6t02o7EkUf+OoZOM=; b=AuHKdonCVXl2KHWzP8/PSMJO6DCdyOsIEJFaT0UrVTJwN40bLgHy/jj2V6tZHnR2Cx xXsBfvKZzJ6ZCewansAjgRpuBe3ElS5NnfWP379kxh59tiFi30e50TXa1YUrZv/lr6Co quqjyhsghtVQJthAwrOdgkQcSUfrGhgxG/KwXPZuvsBsEfB238q9tTcPLnpXCAXX/H/j yvNClMfimuZmbju2U7q17iAZd0f16tIPjIkgOgBQkO2HbtaXQ+jtbr2STQYnYRqTqjhr VOjm85Ch5S5mOagkV2kp3ITv9mkrtBXx7KNAu7nPve1POg65OQ7+JQdcYbJN2mbXHjJZ grtw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763590762; x=1764195562; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=0Sa/28IBowGRnEwfZcsKNnT8Zyd6t02o7EkUf+OoZOM=; b=OU1RYXSvCy6KFn/LdKE529q2w7KvfuoP3beIQQY3uqJoxXIPVSrRzgq8ZMF5W5BUmE WM/Lsg6gpNyes1k0Kk4dswog1EJB0Mo3L4mJUHPXkXzyuJCsx/HMz2sZen7WtlOc5uSU XjkUyl6wwH9rj69xCF4MluFe1aCI0cx08VSuqK0WArzgHcN/CLGflcLYhrwpRO937v7L 4FEQVk8mXaq7k3W8VrmHDwEXTRoLp7nc0WhH7XmvEqzCSdvNgRjQC2uql3cOTyW8m24i 6N0QPiAs8Jnlc5g3bAx+G9/hPNQ6Px31HnsvuP2LeYlwGNQqMYUPveknpZS0kCHBrBdg Hptw== X-Forwarded-Encrypted: i=1; AJvYcCXDaZwhBJVt8CQ/O83stfQFCL+QT+umiDHXpFO30lc1DM3eJfzvyNbTay0PYAsI89xwcWZ4EsR/SHVfCSk=@vger.kernel.org X-Gm-Message-State: AOJu0YwIpTUHF5IBbzVAp0ia1CrYDkK/msCdYGaCps8dYBKVhyI0xHVH HYDZa7jxDmJUVGe695MCZP/pWYQmzgwLCqb1PvlLvOWQBZuWZURiXqH9z14YElBcgzkum39kpgg VcOlaDaazIj27aUtizLTvFK/KbqKJ1hK3WXaRbqErFGIPetEYYw6XCkVeZgPYUIYeCg== X-Gm-Gg: ASbGnctIG1emXsmdWe8hNT+u+KdFkGbdy9bzAKIggAdNZ0RiCDdErE1ojYvEW2r3Vqm YfhAUO9SzrMJNtuE/PsYdEddyEe1c2uq/Nr219JqqthA1Fg+MlaTaeViEAuKx2GeuS5ODupmvub hUnMBmjMCUM1XirxUhA/fAGuxvWZ4QUglCHGcnXPlEnZQN2R2nD6WqvJYVhylvEqftZNLbzZK8d 0oU+87+KTZJetF2RFvVNxzEBPJw/daJZgIzv21pZ02m9pSVHlELbtPSZ6SF+gqXkG9yT+oUotTc mbmb9VhIJDPKHUNulRZSozHw48TQE8jyKqIkGB6mjkOms1NxAEHutOGPKoV4dh9YMNfklslrOJK lTM7fGKjQ8cWHBg== X-Received: by 2002:ac8:5d4c:0:b0:4ee:1907:13ed with SMTP id d75a77b69052e-4ee49705856mr10977441cf.51.1763590762129; Wed, 19 Nov 2025 14:19:22 -0800 (PST) X-Google-Smtp-Source: AGHT+IEvp/HJwXtKnotpgRtr6UAvyPlB/fAc4k6E1PSgQwkx0nIFctwGmjJxEpRk1C5rFdIJc7Go6w== X-Received: by 2002:ac8:5d4c:0:b0:4ee:1907:13ed with SMTP id d75a77b69052e-4ee49705856mr10977141cf.51.1763590761534; Wed, 19 Nov 2025 14:19:21 -0800 (PST) Received: from [172.16.1.8] ([2607:f2c0:b141:ac00:ca1:dc8c:d6d0:7e87]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8846e447304sm4426866d6.4.2025.11.19.14.19.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Nov 2025 14:19:21 -0800 (PST) From: Peter Colberg Date: Wed, 19 Nov 2025 17:19:08 -0500 Subject: [PATCH 4/8] rust: pci: add num_vf(), to return number of VFs 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-v1-4-883a94599a97@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 return the number of Virtual Functions (VF) enabled for a Physical Function (PF). Signed-off-by: Peter Colberg --- rust/kernel/pci.rs | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index 556a01ed9bc3b1300a3340a3d2383e08ceacbfe5..edb2bd41c8a14c8cfc421b26cda= 4dc84f75b546d 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -421,6 +421,13 @@ pub fn is_virtfn(&self) -> bool { unsafe { (*self.as_raw()).is_virtfn() !=3D 0 } } =20 + /// Returns the number of Virtual Functions (VF) enabled for a Physica= l Function (PF). + #[cfg(CONFIG_PCI_IOV)] + pub fn num_vf(&self) -> i32 { + // SAFETY: `self.as_raw` is a valid pointer to a `struct pci_dev`. + unsafe { bindings::pci_num_vf(self.as_raw()) } + } + /// Returns the size of the given PCI BAR resource. pub fn resource_len(&self, bar: u32) -> Result { if !Bar::index_is_valid(bar) { --=20 2.51.1