From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 489E4C433E0 for ; Sat, 30 Jan 2021 09:58:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01FA164D9D for ; Sat, 30 Jan 2021 09:58:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230226AbhA3J60 (ORCPT ); Sat, 30 Jan 2021 04:58:26 -0500 Received: from mga12.intel.com ([192.55.52.136]:24255 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232307AbhA3DAb (ORCPT ); Fri, 29 Jan 2021 22:00:31 -0500 IronPort-SDR: IJS3KlcaWGJ4dvthlnWhtamInDR2ae6WeGVu1B/nd+Il3Ik+KxMRduE6LWmZKZVvjlaBED8Bkr kq97/WgowLBg== X-IronPort-AV: E=McAfee;i="6000,8403,9879"; a="159675281" X-IronPort-AV: E=Sophos;i="5.79,387,1602572400"; d="scan'208";a="159675281" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2021 18:21:30 -0800 IronPort-SDR: QnkvlGuAWW2w/zSRJyjGhG/ZwnVl8gjpsJhFf6ABWfQ4kZ+L0vFkcKvgDXCiL+04pVib5ydGuM CXwSEA2WmCfQ== X-IronPort-AV: E=Sophos;i="5.79,387,1602572400"; d="scan'208";a="389569472" Received: from smtp.ostc.intel.com ([10.54.29.231]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2021 18:21:30 -0800 Received: from mtg-dev.jf.intel.com (mtg-dev.jf.intel.com [10.54.74.10]) by smtp.ostc.intel.com (Postfix) with ESMTP id 173716368; Fri, 29 Jan 2021 18:21:30 -0800 (PST) Received: by mtg-dev.jf.intel.com (Postfix, from userid 1000) id 08E90363688; Fri, 29 Jan 2021 18:21:30 -0800 (PST) From: mgross@linux.intel.com To: markgross@kernel.org, mgross@linux.intel.com, arnd@arndb.de, bp@suse.de, damien.lemoal@wdc.com, dragan.cvetic@xilinx.com, gregkh@linuxfoundation.org, corbet@lwn.net, palmerdabbelt@google.com, paul.walmsley@sifive.com, peng.fan@nxp.com, robh+dt@kernel.org, shawnguo@kernel.org, jassisinghbrar@gmail.com Cc: linux-kernel@vger.kernel.org, Srikanth Thokala Subject: [PATCH v4 15/34] misc: xlink-pcie: Add XLink API interface Date: Fri, 29 Jan 2021 18:21:05 -0800 Message-Id: <20210130022124.65083-51-mgross@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210130022124.65083-1-mgross@linux.intel.com> References: <20210130022124.65083-1-mgross@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Srikanth Thokala Provide interface for XLink layer to interact with XLink PCIe transport layer on both local host and remote host. Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Reviewed-by: Mark Gross Signed-off-by: Mark Gross Signed-off-by: Srikanth Thokala --- drivers/misc/xlink-pcie/common/interface.c | 107 +++++++++++++++++++ drivers/misc/xlink-pcie/local_host/Makefile | 1 + drivers/misc/xlink-pcie/remote_host/Makefile | 1 + 3 files changed, 109 insertions(+) create mode 100644 drivers/misc/xlink-pcie/common/interface.c diff --git a/drivers/misc/xlink-pcie/common/interface.c b/drivers/misc/xlink-pcie/common/interface.c new file mode 100644 index 000000000000..fcc69a940a4c --- /dev/null +++ b/drivers/misc/xlink-pcie/common/interface.c @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Intel Keem Bay XLink PCIe Driver + * + * Copyright (C) 2021 Intel Corporation + */ + +#include + +#include "core.h" +#include "xpcie.h" + +/* Define xpcie driver interface API */ +int xlink_pcie_get_device_list(u32 *sw_device_id_list, u32 *num_devices) +{ + if (!sw_device_id_list || !num_devices) + return -EINVAL; + + *num_devices = intel_xpcie_get_device_num(sw_device_id_list); + + return 0; +} +EXPORT_SYMBOL_GPL(xlink_pcie_get_device_list); + +int xlink_pcie_get_device_name(u32 sw_device_id, char *device_name, + size_t name_size) +{ + if (!device_name) + return -EINVAL; + + return intel_xpcie_get_device_name_by_id(sw_device_id, + device_name, name_size); +} +EXPORT_SYMBOL_GPL(xlink_pcie_get_device_name); + +int xlink_pcie_get_device_status(u32 sw_device_id, u32 *device_status) +{ + u32 status; + int rc; + + if (!device_status) + return -EINVAL; + + rc = intel_xpcie_get_device_status_by_id(sw_device_id, &status); + if (rc) + return rc; + + switch (status) { + case XPCIE_STATUS_READY: + case XPCIE_STATUS_RUN: + *device_status = _XLINK_DEV_READY; + break; + case XPCIE_STATUS_ERROR: + *device_status = _XLINK_DEV_ERROR; + break; + case XPCIE_STATUS_RECOVERY: + *device_status = _XLINK_DEV_RECOVERY; + break; + case XPCIE_STATUS_OFF: + *device_status = _XLINK_DEV_OFF; + break; + default: + *device_status = _XLINK_DEV_BUSY; + break; + } + + return 0; +} +EXPORT_SYMBOL_GPL(xlink_pcie_get_device_status); + +int xlink_pcie_boot_device(u32 sw_device_id, const char *binary_name) +{ + return 0; +} +EXPORT_SYMBOL_GPL(xlink_pcie_boot_device); + +int xlink_pcie_connect(u32 sw_device_id) +{ + return intel_xpcie_pci_connect_device(sw_device_id); +} +EXPORT_SYMBOL_GPL(xlink_pcie_connect); + +int xlink_pcie_read(u32 sw_device_id, void *data, size_t *const size, + u32 timeout) +{ + if (!data || !size) + return -EINVAL; + + return intel_xpcie_pci_read(sw_device_id, data, size, timeout); +} +EXPORT_SYMBOL_GPL(xlink_pcie_read); + +int xlink_pcie_write(u32 sw_device_id, void *data, size_t *const size, + u32 timeout) +{ + if (!data || !size) + return -EINVAL; + + return intel_xpcie_pci_write(sw_device_id, data, size, timeout); +} +EXPORT_SYMBOL_GPL(xlink_pcie_write); + +int xlink_pcie_reset_device(u32 sw_device_id) +{ + return intel_xpcie_pci_reset_device(sw_device_id); +} +EXPORT_SYMBOL_GPL(xlink_pcie_reset_device); diff --git a/drivers/misc/xlink-pcie/local_host/Makefile b/drivers/misc/xlink-pcie/local_host/Makefile index 65df94c7e860..16bb1e7345ac 100644 --- a/drivers/misc/xlink-pcie/local_host/Makefile +++ b/drivers/misc/xlink-pcie/local_host/Makefile @@ -3,3 +3,4 @@ mxlk_ep-objs := epf.o mxlk_ep-objs += dma.o mxlk_ep-objs += core.o mxlk_ep-objs += ../common/util.o +mxlk_ep-objs += ../common/interface.o diff --git a/drivers/misc/xlink-pcie/remote_host/Makefile b/drivers/misc/xlink-pcie/remote_host/Makefile index e8074dbb1161..088e121ad46e 100644 --- a/drivers/misc/xlink-pcie/remote_host/Makefile +++ b/drivers/misc/xlink-pcie/remote_host/Makefile @@ -3,3 +3,4 @@ mxlk-objs := main.o mxlk-objs += pci.o mxlk-objs += core.o mxlk-objs += ../common/util.o +mxlk-objs += ../common/interface.o -- 2.17.1