From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-4163049-1525230296-2-6635849139460282217 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, DCC_CHECK 1.1, HEADER_FROM_DIFFERENT_DOMAINS 0.25, MAILING_LIST_MULTI -1, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, LANGUAGES endasv, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='com', MailFrom='org' X-Spam-charsets: X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-api-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=fm2; t= 1525230295; b=H1r3/O+TA2Y2VpibFaDo3dqkpkoMgLR00/+OaJJzLoon1UxW3G wAIwScdliqELQgh5OS4X2y81aAHedmiDgt+zWHC89fntvRczVQvlW/sZcRNZzkmd tsncBNaANVmDAUil+4o2AXPlTRP80kei6Y3ED/qhhxrwZKBnAqOmWikua1da/Tn8 BbuKU/t4uyxpNDooBy1r2iJtfxMFsOkIyhQQi/DXSgmrAhgN+FomLUCFvJ1sdbua uxF/qUr6mu5rUQNtywQuaj7apJIBdfjwnUCRdDhrC8g4PmcEf82Dxwcwb1pIjYKk VjzlcpT4jt1xv183F5PtS0fZLo7pTlRDHEkw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:sender:list-id; s=fm2; t=1525230295; bh= 1EuM4Gmp/ipVZeFLrmIK/FiVEmZa0DCnwpClgmADpGw=; b=NFANqZO3Ug8J5XMl qiBLBqor8usbPcIviOClifFX4CLzHxpnakebL4MPSUoL4C+nBUizi2qziBsMfg/1 PlIAS2cyBq3vYh5YfWZycrRXW0bRWSINiFfsNgPnMgo2/UGAwezjQj1bp6gqHwWJ rUb/pCGzbsfaoU1dKbp//sHxp8Q/+nxpCqHDFUoJv+7xFoQ2TEehT2DuWWVub2ko XS9B09bCtkAQqWat3/uLcWciQbAqB7C15nHSO70Pma2+GzK/mgLFJ6Pd6M1gNqh9 F9Opuk3LrgYe7fNoBvWxgbVfvBb2cGMIZxEN5CZ5FYYVabFyJj8A8FgpdbJ2nzU2 KxLq6g== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=intel.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=intel.com header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=intel.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=intel.com header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfEiVyr00hV5FP4AUix75iNARkDinQ6NnWxwXAkt5ajwOc3tu8X3bQWNePz2yQH6VywT3/3HJcCs1o7rwYaRhlwOnLQj/JcYTPRYIEwRGb0m+SJB8xfvq E8maoyi2BP8wfByH7HOdJ2ntrRA2ZZszyQs89Rrhbh3SdSySuxxIXSPOtdfJl1/bF+lAs92HxyXpmd2Y+KqkqJk6ueeprjuZ2xHFj8bdgt99mL3ktu6pqm9v X-CM-Analysis: v=2.3 cv=JLoVTfCb c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=VUJBJC2UJ8kA:10 a=QyXUC8HyAAAA:8 a=VwQbUJbxAAAA:8 a=B3Yxh08CrRpNUvMKeOkA:9 a=x8gzFH9gYPwA:10 a=AjGcO6oz07-iQ99wixmX:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751558AbeEBDCm (ORCPT ); Tue, 1 May 2018 23:02:42 -0400 Received: from mga12.intel.com ([192.55.52.136]:63852 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751551AbeEBDCi (ORCPT ); Tue, 1 May 2018 23:02:38 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,353,1520924400"; d="scan'208";a="46058551" From: Wu Hao To: atull@kernel.org, mdf@kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-api@vger.kernel.org, luwei.kang@intel.com, yi.z.zhang@intel.com, hao.wu@intel.com, Tim Whisonant , Enno Luebbers , Shiva Rao , Christopher Rauer Subject: [PATCH v5 21/28] fpga: dfl: add fpga region platform driver for FME Date: Wed, 2 May 2018 10:50:24 +0800 Message-Id: <1525229431-3087-22-git-send-email-hao.wu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1525229431-3087-1-git-send-email-hao.wu@intel.com> References: <1525229431-3087-1-git-send-email-hao.wu@intel.com> Sender: linux-api-owner@vger.kernel.org X-Mailing-List: linux-api@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This patch adds fpga region platform driver for FPGA Management Engine. It register an fpga region with given fpga manager / bridge device. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao Signed-off-by: Christopher Rauer Signed-off-by: Wu Hao Acked-by: Alan Tull Acked-by: Moritz Fischer --- v3: rename driver to fpga-dfl-fme-region fix fpga_mgr_put order problem in remove function. rebased due to fpga api changes. v4: rename to dfl-fme-region, fix SPDX license issue include dfl-fme-pr.h instead of dfl-fme.h and dfl.h add Acked-by from Alan and Moritz v5: rebase, due to fpga region api changes. --- drivers/fpga/Kconfig | 6 +++ drivers/fpga/Makefile | 1 + drivers/fpga/dfl-fme-region.c | 88 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 95 insertions(+) create mode 100644 drivers/fpga/dfl-fme-region.c diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index a8f939a..65d54a4 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -162,6 +162,12 @@ config FPGA_DFL_FME_BRIDGE help Say Y to enable FPGA Bridge driver for FPGA Management Engine. +config FPGA_DFL_FME_REGION + tristate "FPGA DFL FME Region Driver" + depends on FPGA_DFL_FME + help + Say Y to enable FPGA Region driver for FPGA Management Engine. + config FPGA_DFL_PCI tristate "FPGA Device Feature List (DFL) PCIe Device Driver" depends on PCI && FPGA_DFL diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile index 75096e9..163894e 100644 --- a/drivers/fpga/Makefile +++ b/drivers/fpga/Makefile @@ -33,6 +33,7 @@ obj-$(CONFIG_FPGA_DFL) += dfl.o obj-$(CONFIG_FPGA_DFL_FME) += dfl-fme.o obj-$(CONFIG_FPGA_DFL_FME_MGR) += dfl-fme-mgr.o obj-$(CONFIG_FPGA_DFL_FME_BRIDGE) += dfl-fme-br.o +obj-$(CONFIG_FPGA_DFL_FME_REGION) += dfl-fme-region.o dfl-fme-objs := dfl-fme-main.o dfl-fme-pr.o diff --git a/drivers/fpga/dfl-fme-region.c b/drivers/fpga/dfl-fme-region.c new file mode 100644 index 0000000..696b313 --- /dev/null +++ b/drivers/fpga/dfl-fme-region.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * FPGA Region Driver for FPGA Management Engine (FME) + * + * Copyright (C) 2017 Intel Corporation, Inc. + * + * Authors: + * Wu Hao + * Joseph Grecco + * Enno Luebbers + * Tim Whisonant + * Ananda Ravuri + * Henry Mitchel + */ + +#include +#include + +#include "dfl-fme-pr.h" + +static int fme_region_get_bridges(struct fpga_region *region) +{ + struct dfl_fme_region_pdata *pdata = region->priv; + struct device *dev = &pdata->br->dev; + + return fpga_bridge_get_to_list(dev, region->info, ®ion->bridge_list); +} + +static int fme_region_probe(struct platform_device *pdev) +{ + struct dfl_fme_region_pdata *pdata = dev_get_platdata(&pdev->dev); + struct device *dev = &pdev->dev; + struct fpga_region *region; + struct fpga_manager *mgr; + int ret; + + mgr = fpga_mgr_get(&pdata->mgr->dev); + if (IS_ERR(mgr)) + return -EPROBE_DEFER; + + region = fpga_region_create(dev, mgr, fme_region_get_bridges); + if (!region) { + ret = -ENOMEM; + goto eprobe_mgr_put; + } + + region->priv = pdata; + platform_set_drvdata(pdev, region); + + ret = fpga_region_register(region); + if (ret) + goto region_free; + + dev_dbg(dev, "DFL FME FPGA Region probed\n"); + + return 0; + +region_free: + fpga_region_free(region); +eprobe_mgr_put: + fpga_mgr_put(mgr); + return ret; +} + +static int fme_region_remove(struct platform_device *pdev) +{ + struct fpga_region *region = dev_get_drvdata(&pdev->dev); + + fpga_region_unregister(region); + fpga_mgr_put(region->mgr); + + return 0; +} + +static struct platform_driver fme_region_driver = { + .driver = { + .name = DFL_FPGA_FME_REGION, + }, + .probe = fme_region_probe, + .remove = fme_region_remove, +}; + +module_platform_driver(fme_region_driver); + +MODULE_DESCRIPTION("FPGA Region for DFL FPGA Management Engine"); +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:dfl-fme-region"); -- 1.8.3.1