From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3807972-1518514828-2-4294695317171002062 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES daenro, 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=arctest; t=1518514828; b=HG0cDJ1ExI1rMhLmCGMm4YRBbI/ksrtpyTKRpsY+hUSft9L XbvD6DqmW46GyKCDwLdtst9bi3y1QgUeKvztgX6nC9erutKbqW9WbIvoPL4jup4t apEJdNQo/ht1BujDzAJQQIQBGmYnqq1t+8Ve95FINXO4kH56Jlo5OGzSqpGojNNs XpbvD4kClIo4TsYsCR+5tPfolXl0JsuYdhyumHNuS63wJX4um+VLxZe2ISfmLl4O xfe+aCk0O9bC+Zk71nDuktd5Ro3YV07M+YjgU1akBmZfvrUrCNTJFPX4UInN6SFb e5mMjwcMfu9euPwQSJpaZMxPYaXmThrSeZFa7NQ== 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=arctest; t=1518514828; bh=Cv2m6f4DZmQmrFSXfZRYktlI85SltMikjzhJco2Ha0A=; b=fFr9aYtuYdLB dY68HbEQWt1qVuVbP7Mi/IgM6xPRopOHmGGNQqT0Mdcg6KzkW0KU/Q3HNsSuZGBW WfePRzc1zQLBwyCHepS7ojYIqKaLvtwD+G4IHYGj8whvLIAsUmx6FVKKOEasZBuu DTow7RVQdVmo2UA97c9GzPWDrGxyULw1u97cP79SjQFLYLCkT8/0Y3m8sIeofQDK 7s7mqMp+Fb9D06ilZef5TdYTuy4QARgSUxk8QV5Z4d4aUc3E0ofVNwsKjvsX33HX ClUjc/DEr7XVvF9az4csSaUzn32mYJTdeOun2lvxxxd5FfS8+MzWSMJ9nwedU7mE RbUXMj66uw== ARC-Authentication-Results: i=1; mx5.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-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 Authentication-Results: mx5.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-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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934260AbeBMJkI (ORCPT ); Tue, 13 Feb 2018 04:40:08 -0500 Received: from mga03.intel.com ([134.134.136.65]:27128 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934420AbeBMJfy (ORCPT ); Tue, 13 Feb 2018 04:35:54 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,507,1511856000"; d="scan'208";a="26889611" 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 v4 17/24] fpga: dfl: add fpga bridge platform driver for FME Date: Tue, 13 Feb 2018 17:24:46 +0800 Message-Id: <1518513893-4719-18-git-send-email-hao.wu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1518513893-4719-1-git-send-email-hao.wu@intel.com> References: <1518513893-4719-1-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 bridge platform driver for FPGA Management Engine. It implements the enable_set call back for fpga bridge. 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-br remove useless dev_dbg in probe function. rebased due to fpga api change. v4: rename to dfl-fme-br and fix SPDX license issue include dfl-fme-pr.h instead of dfl-fme.h add Acked-by from Alan and Moritz --- drivers/fpga/Kconfig | 6 ++++ drivers/fpga/Makefile | 1 + drivers/fpga/dfl-fme-br.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 92 insertions(+) create mode 100644 drivers/fpga/dfl-fme-br.c diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index 89f76e8..a8f939a 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -156,6 +156,12 @@ config FPGA_DFL_FME_MGR help Say Y to enable FPGA Manager driver for FPGA Management Engine. +config FPGA_DFL_FME_BRIDGE + tristate "FPGA DFL FME Bridge Driver" + depends on FPGA_DFL_FME + help + Say Y to enable FPGA Bridge 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 f82814a..75096e9 100644 --- a/drivers/fpga/Makefile +++ b/drivers/fpga/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_OF_FPGA_REGION) += of-fpga-region.o obj-$(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 dfl-fme-objs := dfl-fme-main.o dfl-fme-pr.o diff --git a/drivers/fpga/dfl-fme-br.c b/drivers/fpga/dfl-fme-br.c new file mode 100644 index 0000000..46cee30 --- /dev/null +++ b/drivers/fpga/dfl-fme-br.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * FPGA Bridge 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.h" +#include "dfl-fme-pr.h" + +static int fme_bridge_enable_set(struct fpga_bridge *bridge, bool enable) +{ + struct fme_br_pdata *pdata = bridge->priv; + int ret = 0; + + if (enable) + fpga_port_enable(pdata->port); + else + ret = fpga_port_disable(pdata->port); + + return ret; +} + +static const struct fpga_bridge_ops fme_bridge_ops = { + .enable_set = fme_bridge_enable_set, +}; + +static int fme_br_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct fme_br_pdata *pdata = dev_get_platdata(dev); + struct fpga_bridge *br; + int ret; + + br = devm_kzalloc(dev, sizeof(*br), GFP_KERNEL); + if (!br) + return -ENOMEM; + + br->name = "FPGA FME Bridge"; + br->br_ops = &fme_bridge_ops; + br->priv = pdata; + br->parent = dev; + platform_set_drvdata(pdev, br); + + ret = fpga_bridge_register(br); + if (ret) + dev_err(dev, "unable to register FPGA Bridge\n"); + + return ret; +} + +static int fme_br_remove(struct platform_device *pdev) +{ + struct fpga_bridge *br = platform_get_drvdata(pdev); + + fpga_bridge_unregister(br); + + return 0; +} + +static struct platform_driver fme_br_driver = { + .driver = { + .name = FPGA_DFL_FME_BRIDGE, + }, + .probe = fme_br_probe, + .remove = fme_br_remove, +}; + +module_platform_driver(fme_br_driver); + +MODULE_DESCRIPTION("FPGA Bridge for DFL FPGA Management Engine"); +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:dfl-fme-bridge"); -- 2.7.4