From patchwork Tue Oct 18 13:23:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Richter X-Patchwork-Id: 4176 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp1963635wrs; Tue, 18 Oct 2022 06:34:59 -0700 (PDT) X-Google-Smtp-Source: AMsMyM7aipeRNKf10eIZLFm4ru0fvPSnRffs5dmF1iv2zuGmPvMwlsQB+JI6AEUnhJzue0qTic2G X-Received: by 2002:a17:906:5dce:b0:78d:e71a:6e0 with SMTP id p14-20020a1709065dce00b0078de71a06e0mr2460335ejv.360.1666100099549; Tue, 18 Oct 2022 06:34:59 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1666100099; cv=pass; d=google.com; s=arc-20160816; b=mvWgxeYJgZNky8NEUcc8f0NDynqgTo9kjC/mdsbgE36G8PLyKG6QS1hiv9RCPoFMo2 3I9xQwVDhO189IJD3Auujs/uItjPzvvPx45EP47oXHBXFsCmsZfSaL88MuM32Ul+xY5a +dYt2PcB81FE/3TsD+i25dglHC59O69t/HukvZ5n6va75JrwqJ5e5SrJYV3eQXsnYqOJ upY9uQacr02N80QmXbWPBbb3SnLPEbqjLPKHybkJ4hoY8VcrJk/D/lR88QPNjzJdSpf+ kL0e5ATi/W9ZT2ca/Jmb+IhOR9fz2bwyRaXv1i/15h4pu6oxYe37IKfWPBNDcfscAtQR ngyw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=fKDHc51d7FEG0Lu5nY4eByWXC99jgX1kSwZm+TRGAHw=; b=LuAUP2/CwbG4zwrWP/Yv2NKuTxC1XRBUXdzNq+zhJi74vHCM/a+0duaB2eKhKFcecx ypjG1OGODLzJNdv/ykWE2bNxQnK1XObyonNc8lFJASUpy0/AVdOBfOY3hMpZX6KStm6b Yu06yK3FYPiZyImiMPewQTRE6E6m2VTlY4c2yHVFq64klDZvTpF2pnHfKmrjKCX1GdBj Nvq4mkoCoDs+0ajaWgcyGJFIH6wicCDYwyLPy4tlX+GeZPZbOwwzI+r+txgrmHui+pLe g875KW9f8duUNF143CPUKOR320OFYi/0O0JYtKdhgbANdQv/EkHoq3QKGjXvdF1n+KmR CTIA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=ta3A3Emr; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id eb8-20020a0564020d0800b0045028bed6e7si13819877edb.600.2022.10.18.06.34.34; Tue, 18 Oct 2022 06:34:59 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=ta3A3Emr; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230406AbiJRN0H (ORCPT + 99 others); Tue, 18 Oct 2022 09:26:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230099AbiJRNZs (ORCPT ); Tue, 18 Oct 2022 09:25:48 -0400 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2082.outbound.protection.outlook.com [40.107.223.82]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A765DC8216; Tue, 18 Oct 2022 06:25:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=OOTqOrtnZ2s8gkBg8G3jT5kND5/0oFbFZ6EQpXbNtDvHwmqp7CEXJ1dFxTvsHnXCfuQUl7wRmr4JIa1uaL02ERFNZLrfO+drnq3FER5KHq5eki9x0R8usUZd2k23e713vQ8Go32i8chDVCpBl5ikG+6KJ1ABtu0OpmwFoMOqYnsN4mu47SDTWd9rPg3OjUQwjDUZ1fIgSQ9BbImzw610qryTRddJ+tv10/7GVpyLjQ/s8RDHVSHvynSY/OjMkuUfjSPTKB2cxEO9AdyotqcKenoz30Jy8+IY0wsi/CejnRz+JTQliAVEDO8B9BTHOq5oCKSRyO6mVieoWhgpbE9yiQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=fKDHc51d7FEG0Lu5nY4eByWXC99jgX1kSwZm+TRGAHw=; b=WZV7qBjQD/42f8dN6RbGANVi4Sryz2j362pCr6Kv+lX8KB64lWKPknnj2q+gIFmfPqi1B2SnBjSxiMJsF5UVoDwdl9gXWxpJrnsT5gzAzzONleujJIhJiVMqcARzLDPqx+wn0nT4KX7Iq2qUGlJYdv606JaTDlJUaZakrJKfgXPADrCGocaazzwcXZBLddk0TBhzz3BIcZ4/GRuoatkhH1Z5F/sIHNwMFVwBHSx7Yk67BWoOtH1xJqEvj1+K5znSwYX/+GBlIEqWTVm7K3Fjm4YCxbjv4QAYM1xglOHbnFRSyu9K6L5z0op79isbN7hYbvVo+qDB7HsjPXqePr4A9g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=intel.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=fKDHc51d7FEG0Lu5nY4eByWXC99jgX1kSwZm+TRGAHw=; b=ta3A3EmrRY72kYcFuny5f8FyfNICnbuXjIutvm2SUZm07eLpBMWlTWksO46tucKn3KYiuTJt9aFFF2eObybwvS7BT//Gk9w61gumS81632Twrz+ZHzZWKiz93o3Sj58SgNEsZoxZuojTDECWI8+jg8dfDw8tsjyKCxxDH7Wvyj8= Received: from BN9PR03CA0581.namprd03.prod.outlook.com (2603:10b6:408:10d::16) by CH0PR12MB5266.namprd12.prod.outlook.com (2603:10b6:610:d1::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5723.33; Tue, 18 Oct 2022 13:25:01 +0000 Received: from BN8NAM11FT028.eop-nam11.prod.protection.outlook.com (2603:10b6:408:10d:cafe::94) by BN9PR03CA0581.outlook.office365.com (2603:10b6:408:10d::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5723.30 via Frontend Transport; Tue, 18 Oct 2022 13:25:00 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BN8NAM11FT028.mail.protection.outlook.com (10.13.176.225) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5723.20 via Frontend Transport; Tue, 18 Oct 2022 13:25:00 +0000 Received: from rric.localdomain (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 18 Oct 2022 08:24:56 -0500 From: Robert Richter To: Alison Schofield , Vishal Verma , Ira Weiny , Ben Widawsky , Dan Williams CC: , , Bjorn Helgaas , "Rafael J. Wysocki" , Len Brown , Jonathan Cameron , "Davidlohr Bueso" , Robert Richter Subject: [PATCH v2 11/12] cxl: Factor out code in match_add_dports() to pci_dev_add_dport() Date: Tue, 18 Oct 2022 15:23:39 +0200 Message-ID: <20221018132341.76259-12-rrichter@amd.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221018132341.76259-1-rrichter@amd.com> References: <20221018132341.76259-1-rrichter@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT028:EE_|CH0PR12MB5266:EE_ X-MS-Office365-Filtering-Correlation-Id: 5f9f280b-fa20-4503-465a-08dab10c28db X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(346002)(396003)(136003)(376002)(39860400002)(451199015)(40470700004)(36840700001)(46966006)(110136005)(54906003)(4326008)(8676002)(7416002)(5660300002)(316002)(40460700003)(70586007)(70206006)(36860700001)(6666004)(478600001)(82310400005)(2906002)(41300700001)(36756003)(8936002)(83380400001)(186003)(1076003)(336012)(16526019)(426003)(47076005)(82740400003)(40480700001)(356005)(26005)(2616005)(81166007)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Oct 2022 13:25:00.9216 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5f9f280b-fa20-4503-465a-08dab10c28db X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT028.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR12MB5266 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747032577557861122?= X-GMAIL-MSGID: =?utf-8?q?1747032577557861122?= Factor out the code to register a PCI device's dport to a port. It will be reused to implement RCD mode. Signed-off-by: Robert Richter --- drivers/cxl/core/pci.c | 37 ++++++++++++++++++++++++++----------- 1 file changed, 26 insertions(+), 11 deletions(-) diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index 8271b8abde7a..667de4f125f6 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -29,14 +29,32 @@ struct cxl_walk_context { int count; }; +static int pci_dev_add_dport(struct pci_dev *pdev, struct cxl_port *port, + resource_size_t component_reg_phys) +{ + struct cxl_dport *dport; + u32 lnkcap, port_num; + + if (pci_read_config_dword(pdev, pci_pcie_cap(pdev) + PCI_EXP_LNKCAP, + &lnkcap)) + return -ENXIO; + + port_num = FIELD_GET(PCI_EXP_LNKCAP_PN, lnkcap); + dport = devm_cxl_add_dport(port, &pdev->dev, port_num, + component_reg_phys); + if (IS_ERR(dport)) + return PTR_ERR(dport); + + return 0; +} + static int match_add_dports(struct pci_dev *pdev, void *data) { struct cxl_walk_context *ctx = data; struct cxl_port *port = ctx->port; int type = pci_pcie_type(pdev); struct cxl_register_map map; - struct cxl_dport *dport; - u32 lnkcap, port_num; + resource_size_t component_reg_phys; int rc; if (pdev->bus != ctx->bus) @@ -45,21 +63,18 @@ static int match_add_dports(struct pci_dev *pdev, void *data) return 0; if (type != ctx->type) return 0; - if (pci_read_config_dword(pdev, pci_pcie_cap(pdev) + PCI_EXP_LNKCAP, - &lnkcap)) - return -ENXIO; rc = cxl_find_regblock(pdev, CXL_REGLOC_RBI_COMPONENT, &map); if (rc) dev_dbg(&port->dev, "failed to find component registers\n"); - port_num = FIELD_GET(PCI_EXP_LNKCAP_PN, lnkcap); - dport = devm_cxl_add_dport(port, &pdev->dev, port_num, - cxl_regmap_to_base(pdev, &map)); - if (IS_ERR(dport)) { - ctx->error = PTR_ERR(dport); - return PTR_ERR(dport); + component_reg_phys = cxl_regmap_to_base(pdev, &map); + rc = pci_dev_add_dport(pdev, port, component_reg_phys); + if (rc) { + ctx->error = rc; + return rc; } + ctx->count++; return 0;