From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 10B18A04DF; Fri, 30 Oct 2020 10:51:50 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id EA4B4C93C; Fri, 30 Oct 2020 10:42:44 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 8B38FC840 for ; Fri, 30 Oct 2020 10:42:00 +0100 (CET) IronPort-SDR: 1jnygvWTqWy711WRt4AG7MCtFZho56M3b1tCW1PmB9A/AP02AzuYK+9Pu5PISmb2Z3OblyY28f R3vTbp5b0kwg== X-IronPort-AV: E=McAfee;i="6000,8403,9789"; a="148439327" X-IronPort-AV: E=Sophos;i="5.77,432,1596524400"; d="scan'208";a="148439327" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Oct 2020 02:41:59 -0700 IronPort-SDR: cbjoVnDFWjhp/CzhmRrAHxyoSvsnaASfQetCBzr0hyvBDxHDexBWRh5Rw0K5ZXJ956f2jOEtO/ 6C8dg5HwU0MA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,432,1596524400"; d="scan'208";a="351808638" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga004.fm.intel.com with ESMTP; 30 Oct 2020 02:41:59 -0700 From: Timothy McDaniel To: Cc: dev@dpdk.org, erik.g.carrillo@intel.com, gage.eads@intel.com, harry.van.haaren@intel.com, jerinj@marvell.com, thomas@monjalon.net Date: Fri, 30 Oct 2020 04:43:24 -0500 Message-Id: <1604051021-26699-8-git-send-email-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1604051021-26699-1-git-send-email-timothy.mcdaniel@intel.com> References: <1602958879-8558-2-git-send-email-timothy.mcdaniel@intel.com> <1604051021-26699-1-git-send-email-timothy.mcdaniel@intel.com> Subject: [dpdk-dev] [PATCH v5 07/23] event/dlb2: add flexible interface X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This commit introduces the flexible interface. This interface allows the core code to operate in PF mode (direct hardware access) or bifurcated mode (hardware configured via kernel driver). This driver currently only supports PF mode but bifurcated mode will be added in a future DPDK patch-set. Note that the flexible interface is not used for data path operations, and thus there are no performance concerns related to the use of function pointers. Signed-off-by: Timothy McDaniel --- drivers/event/dlb2/dlb2_iface.c | 28 ++++++++++++++++++++++++++++ drivers/event/dlb2/dlb2_iface.h | 29 +++++++++++++++++++++++++++++ drivers/event/dlb2/meson.build | 1 + 3 files changed, 58 insertions(+) create mode 100644 drivers/event/dlb2/dlb2_iface.c create mode 100644 drivers/event/dlb2/dlb2_iface.h diff --git a/drivers/event/dlb2/dlb2_iface.c b/drivers/event/dlb2/dlb2_iface.c new file mode 100644 index 0000000..0fc9991 --- /dev/null +++ b/drivers/event/dlb2/dlb2_iface.c @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#include + +#include "dlb2_priv.h" + +/* DLB2 PMD Internal interface function pointers. + * If VDEV (bifurcated PMD), these will resolve to functions that issue ioctls + * serviced by DLB kernel module. + * If PCI (PF PMD), these will be implemented locally in user mode. + */ + +void (*dlb2_iface_low_level_io_init)(void); + +int (*dlb2_iface_open)(struct dlb2_hw_dev *handle, const char *name); + +int (*dlb2_iface_get_device_version)(struct dlb2_hw_dev *handle, + uint8_t *revision); + +void (*dlb2_iface_hardware_init)(struct dlb2_hw_dev *handle); + +int (*dlb2_iface_get_cq_poll_mode)(struct dlb2_hw_dev *handle, + enum dlb2_cq_poll_modes *mode); + +int (*dlb2_iface_get_num_resources)(struct dlb2_hw_dev *handle, + struct dlb2_get_num_resources_args *rsrcs); diff --git a/drivers/event/dlb2/dlb2_iface.h b/drivers/event/dlb2/dlb2_iface.h new file mode 100644 index 0000000..4fb416e --- /dev/null +++ b/drivers/event/dlb2/dlb2_iface.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#ifndef _DLB2_IFACE_H_ +#define _DLB2_IFACE_H_ + +/* DLB2 PMD Internal interface function pointers. + * If VDEV (bifurcated PMD), these will resolve to functions that issue ioctls + * serviced by DLB kernel module. + * If PCI (PF PMD), these will be implemented locally in user mode. + */ + +extern void (*dlb2_iface_low_level_io_init)(void); + +extern int (*dlb2_iface_open)(struct dlb2_hw_dev *handle, const char *name); + +extern int (*dlb2_iface_get_device_version)(struct dlb2_hw_dev *handle, + uint8_t *revision); + +extern void (*dlb2_iface_hardware_init)(struct dlb2_hw_dev *handle); + +extern int (*dlb2_iface_get_cq_poll_mode)(struct dlb2_hw_dev *handle, + enum dlb2_cq_poll_modes *mode); + +extern int (*dlb2_iface_get_num_resources)(struct dlb2_hw_dev *handle, + struct dlb2_get_num_resources_args *rsrcs); + +#endif /* _DLB2_IFACE_H_ */ diff --git a/drivers/event/dlb2/meson.build b/drivers/event/dlb2/meson.build index 1eab9b9..491e76d 100644 --- a/drivers/event/dlb2/meson.build +++ b/drivers/event/dlb2/meson.build @@ -8,6 +8,7 @@ if not is_linux or not dpdk_conf.has('RTE_ARCH_X86_64') endif sources = files('dlb2.c', + 'dlb2_iface.c', 'pf/dlb2_main.c', 'pf/dlb2_pf.c' ) -- 2.6.4