{"id":2175276,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2175276/?format=json","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.0/projects/28/?format=json","name":"Linux PCI development","link_name":"linux-pci","list_id":"linux-pci.vger.kernel.org","list_email":"linux-pci@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20251217151609.3162665-6-den@valinux.co.jp>","date":"2025-12-17T15:15:39","name":"[RFC,v3,05/35] PCI: endpoint: pci-epf-vntb: Propagate MW offset from configfs when present","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"0fdaeae6c6699af946b62d1744bc2717a22122c6","submitter":{"id":91573,"url":"http://patchwork.ozlabs.org/api/1.0/people/91573/?format=json","name":"Koichiro Den","email":"den@valinux.co.jp"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20251217151609.3162665-6-den@valinux.co.jp/mbox/","series":[{"id":485709,"url":"http://patchwork.ozlabs.org/api/1.0/series/485709/?format=json","date":"2025-12-17T15:15:53","name":"NTB transport backed by endpoint DW eDMA","version":3,"mbox":"http://patchwork.ozlabs.org/series/485709/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2175276/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=valinux.co.jp header.i=@valinux.co.jp\n header.a=rsa-sha256 header.s=selector1 header.b=Aotw2lC6;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n 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bh=cBjs62C63/zVf7xG4DFNs2yiZxHTrjLjAG7M3hlTTLc=;\n b=Aotw2lC6WsUEzi6bEMB14J/Jtcii3Qqjwvn9vJhEqkNHSNSr6On07hyVRaGcs2VSECZ1Y7ML5+xUkqqesTORKjKOUrvofoq9t85jSLCjUSW4d/A2Gek21rUaGLum4Nu+Df3jb9KveuL1eEiUh24bvsMMFjfQJo2pCgck6KTnie8=","From":"Koichiro Den ","To":"Frank.Li@nxp.com,\n\tdave.jiang@intel.com,\n\tntb@lists.linux.dev,\n\tlinux-pci@vger.kernel.org,\n\tdmaengine@vger.kernel.org,\n\tlinux-renesas-soc@vger.kernel.org,\n\tnetdev@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org","Cc":"mani@kernel.org,\n\tkwilczynski@kernel.org,\n\tkishon@kernel.org,\n\tbhelgaas@google.com,\n\tcorbet@lwn.net,\n\tgeert+renesas@glider.be,\n\tmagnus.damm@gmail.com,\n\trobh@kernel.org,\n\tkrzk+dt@kernel.org,\n\tconor+dt@kernel.org,\n\tvkoul@kernel.org,\n\tjoro@8bytes.org,\n\twill@kernel.org,\n\trobin.murphy@arm.com,\n\tjdmason@kudzu.us,\n\tallenbh@gmail.com,\n\tandrew+netdev@lunn.ch,\n\tdavem@davemloft.net,\n\tedumazet@google.com,\n\tkuba@kernel.org,\n\tpabeni@redhat.com,\n\tBasavaraj.Natikar@amd.com,\n\tShyam-sundar.S-k@amd.com,\n\tkurt.schwemmer@microsemi.com,\n\tlogang@deltatee.com,\n\tjingoohan1@gmail.com,\n\tlpieralisi@kernel.org,\n\tutkarsh02t@gmail.com,\n\tjbrunet@baylibre.com,\n\tdlemoal@kernel.org,\n\tarnd@arndb.de,\n\telfring@users.sourceforge.net,\n\tden@valinux.co.jp","Subject":"[RFC PATCH v3 05/35] PCI: endpoint: pci-epf-vntb: Propagate MW offset\n from configfs when present","Date":"Thu, 18 Dec 2025 00:15:39 +0900","Message-ID":"<20251217151609.3162665-6-den@valinux.co.jp>","X-Mailer":"git-send-email 2.51.0","In-Reply-To":"<20251217151609.3162665-1-den@valinux.co.jp>","References":"<20251217151609.3162665-1-den@valinux.co.jp>","Content-Transfer-Encoding":"8bit","Content-Type":"text/plain","X-ClientProxiedBy":"TY4P286CA0130.JPNP286.PROD.OUTLOOK.COM\n (2603:1096:405:37f::8) To TYWP286MB2697.JPNP286.PROD.OUTLOOK.COM\n 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","X-OriginatorOrg":"valinux.co.jp","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n 65fe181c-7acd-4b78-48bc-08de3d7f3a11","X-MS-Exchange-CrossTenant-AuthSource":"TYWP286MB2697.JPNP286.PROD.OUTLOOK.COM","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"17 Dec 2025 15:16:17.8388\n (UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-CrossTenant-Id":"7a57bee8-f73d-4c5f-a4f7-d72c91c8c111","X-MS-Exchange-CrossTenant-MailboxType":"HOSTED","X-MS-Exchange-CrossTenant-UserPrincipalName":"\n Szeipwn7ViD+rORqRDQdlpxqRnsS39DcNEs0QJchBxrk2Oy37lVs7cUpn/fHSCVs7GkINYNpqPT6lCJCytIMVA==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"OS9P286MB4633"},"content":"The NTB API functions ntb_mw_set_trans() and ntb_mw_get_align() now\nsupport non-zero MW offsets. Update pci-epf-vntb to populate\nmws_offset[idx] when the offset parameter is provided. Users can now\nretrieve the offset and pass it to ntb_mw_set_trans().\n\nSigned-off-by: Koichiro Den \n---\n drivers/pci/endpoint/functions/pci-epf-vntb.c | 3 +++\n 1 file changed, 3 insertions(+)","diff":"diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c\nindex 4db1fabfd8a4..337995e2f3ce 100644\n--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c\n+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c\n@@ -1521,6 +1521,9 @@ static int vntb_epf_mw_get_align(struct ntb_dev *ndev, int pidx, int idx,\n \tif (size_max)\n \t\t*size_max = ntb->mws_size[idx];\n \n+\tif (offset)\n+\t\t*offset = ntb->mws_offset[idx];\n+\n \treturn 0;\n }\n \n","prefixes":["RFC","v3","05/35"]}