From nobody Sun Nov 24 04:53:20 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9C59E2170D6; Thu, 7 Nov 2024 18:57:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731005839; cv=none; b=X862TGTdU26p8W3goNEXc6AFQtf38HQQOtgE27/HZny6qDCMv7WS1d28xUv5a32jA+kF+Iu03NKr0aeFPDyN1DkVOcz22VQNzFoKIL7j6nP36sx+Upnq/DzEjdKX3UaBdMV3zcZ1yRYizdDob1/ZiD3viJhFHciwUgSm26G8Vvc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731005839; c=relaxed/simple; bh=Jk1glCEODb6LBoL7jnE9DENCd/x3Sr54x9ReG6IrTdA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jy4+OGK7zKu0cjRrWDjDSnb2/lLAAiTOBhBM3K2gYKmr84fvmEZ4nLXSUud/iRaiqsF/YcBnz1UOCnWSBaWfRQ8VS2p+kvkwK9DYTKlc9d1FUlR4/dH3ZYO/8/MlEq5vgrp896JcDfO8kzzo7gtpqBT4zdnKQHxA3gbu5FRyvlA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Foegwhou; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Foegwhou" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7A3DC4CECC; Thu, 7 Nov 2024 18:57:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731005839; bh=Jk1glCEODb6LBoL7jnE9DENCd/x3Sr54x9ReG6IrTdA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Foegwhoude5WqXWP35jdLgyEeAkFM0PFcfVdf01MOefeo57+VbUDM5iOBoj529Nfe 7el/OZoEmt0ke+Avk/ndQI68xoqZ0ZmMHEKupuy0jMHew4QY5ywB32F8fKNv8Drya6 Azj1AKVvB3fshMrG2Z23uYowwsYQ+DXGfBWToFnB6Mk5+Zw9OTN8bfrkRNSPjmGr4K as+zqcVz7OQEcINbP59dm8kXT1lAUv9MxzueUvoGr5bB7sxVC+3II1xiXLY6P6eOZ9 3OonLQJOD5cMhdXWD08iCIU5S6hgJ0JhuHEoqx7BNpeKMDuHp+ZfH1rNF0dl3YWO1Q coEkh890SYsLA== From: Leon Romanovsky To: Bjorn Helgaas Cc: Leon Romanovsky , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , linux-pci@vger.kernel.org, "Ariel Almog" , "Aditya Prabhune" , "Hannes Reinecke" , "Heiner Kallweit" , "Arun Easi" , "Jonathan Chocron" , "Bert Kenward" , "Matt Carlson" , "Kai-Heng Feng" , "Jean Delvare" , "Alex Williamson" , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v1 2/2] net/mlx5: Enable unprivileged read of PCI VPD file Date: Thu, 7 Nov 2024 20:56:57 +0200 Message-ID: X-Mailer: git-send-email 2.47.0 In-Reply-To: References: 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 Content-Type: text/plain; charset="utf-8" From: Leon Romanovsky mlx5 devices are PCIe spec compliant, doesn't expose any sensitive information Vital Product Data (VPD) section. In addition, these devices are capable to provide an unprivileged read access file exposed by PCI core. The parsed VPD section looks like this: 08:00.0 Ethernet controller: Mellanox Technologies MT2910 Family [ConnectX-7] ... Capabilities: [48] Vital Product Data Product Name: NVIDIA ConnectX-7 HHHL adapter Card, 200GbE / NDR200 IB, = Dual-port QSFP112, PCIe 5.0 x16 with x16 PCIe extension option, Crypto, Secure Boot Capable Read-only fields: [PN] Part number: MCX713106AEHEA_QP1 [EC] Engineering changes: A5 [V2] Vendor specific: MCX713106AEHEA_QP1 [SN] Serial number: MT2314XZ0JUZ [V3] Vendor specific: 0a5efb8958deed118000946dae7db798 [VA] Vendor specific: MLX:MN=3DMLNX:CSKU=3DV2:UUID=3DV3:PCI=3DV0:MO= DL=3DCX713106A [V0] Vendor specific: PCIeGen5 x16 [VU] Vendor specific: MT2314XZ0JUZMLNXS0D0F0 [RV] Reserved: checksum good, 1 byte(s) reserved End Signed-off-by: Leon Romanovsky Acked-by: Jakub Kicinski --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/e= thernet/mellanox/mlx5/core/main.c index 220a9ac75c8b..7e34badd174b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -2280,6 +2280,7 @@ static struct pci_driver mlx5_core_driver =3D { .sriov_configure =3D mlx5_core_sriov_configure, .sriov_get_vf_total_msix =3D mlx5_sriov_get_vf_total_msix, .sriov_set_msix_vec_count =3D mlx5_core_sriov_set_msix_vec_count, + .downgrade_vpd_read =3D true, }; =20 /** --=20 2.47.0