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b=LPZ8ljZhwiGfLYZvqtfSImE570EEJ70fhTo2p3U6JCc3ZivgI1mRmUxIvULILiaEIaktco8EPRrtuscwxt91n3CQG6KwYNK9wfgGVxpF4xhIHSQccDQIyX+ReZXm70+j50WrByFHoUnceD3j5F7+woDANUOiwjIxBtKym6ldbWY= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=valinux.co.jp; Received: from OS3P286MB0979.JPNP286.PROD.OUTLOOK.COM (2603:1096:604:10d::7) by OS7P286MB7183.JPNP286.PROD.OUTLOOK.COM (2603:1096:604:456::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9253.13; Thu, 23 Oct 2025 07:19:32 +0000 Received: from OS3P286MB0979.JPNP286.PROD.OUTLOOK.COM ([fe80::80f1:db56:4a11:3f7a]) by OS3P286MB0979.JPNP286.PROD.OUTLOOK.COM ([fe80::80f1:db56:4a11:3f7a%5]) with mapi id 15.20.9253.011; Thu, 23 Oct 2025 07:19:32 +0000 From: Koichiro Den To: ntb@lists.linux.dev, linux-pci@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Cc: mani@kernel.org, kwilczynski@kernel.org, kishon@kernel.org, bhelgaas@google.com, corbet@lwn.net, vkoul@kernel.org, jdmason@kudzu.us, dave.jiang@intel.com, allenbh@gmail.com, Basavaraj.Natikar@amd.com, Shyam-sundar.S-k@amd.com, kurt.schwemmer@microsemi.com, logang@deltatee.com, jingoohan1@gmail.com, lpieralisi@kernel.org, robh@kernel.org, jbrunet@baylibre.com, Frank.Li@nxp.com, fancer.lancer@gmail.com, arnd@arndb.de, pstanner@redhat.com, elfring@users.sourceforge.net Subject: [RFC PATCH 08/25] PCI: endpoint: pci-epf-vntb: Propagate MW offset from configfs when present Date: Thu, 23 Oct 2025 16:18:59 +0900 Message-ID: <20251023071916.901355-9-den@valinux.co.jp> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251023071916.901355-1-den@valinux.co.jp> References: <20251023071916.901355-1-den@valinux.co.jp> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: TY4P301CA0085.JPNP301.PROD.OUTLOOK.COM (2603:1096:405:37a::15) To OS3P286MB0979.JPNP286.PROD.OUTLOOK.COM (2603:1096:604:10d::7) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: OS3P286MB0979:EE_|OS7P286MB7183:EE_ X-MS-Office365-Filtering-Correlation-Id: d53fb424-e457-4afb-62dd-08de12048307 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|7416014|1800799024|10070799003; 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charset="utf-8" The NTB API functions ntb_mw_set_trans() and ntb_mw_get_align() now support non-zero MW offsets. Update pci-epf-vntb to populate mws_offset[idx] when the offset parameter is provided. Users can now get the offset value and use it on ntb_mw_set_trans(). Signed-off-by: Koichiro Den --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/en= dpoint/functions/pci-epf-vntb.c index becfad483643..6495f99ffd4f 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -1413,6 +1413,9 @@ static int vntb_epf_mw_get_align(struct ntb_dev *ndev= , int pidx, int idx, if (size_max) *size_max =3D ntb->mws_size[idx]; =20 + if (offset) + *offset =3D ntb->mws_offset[idx]; + return 0; } =20 --=20 2.48.1