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 18982A04E6; Sat, 31 Oct 2020 00:41:55 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 3F3CEC7EA; Sat, 31 Oct 2020 00:40:10 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 4C60DBE5F for ; Sat, 31 Oct 2020 00:39:55 +0100 (CET) IronPort-SDR: zq0iGDawhBQzs+rCa1XlZwl9Zt7j7fkzdHvmS8hmx8QZtWbufxljfzkwFEmacEei0PredVrRwL dNa7Yawc1vLQ== X-IronPort-AV: E=McAfee;i="6000,8403,9790"; a="166094668" X-IronPort-AV: E=Sophos;i="5.77,435,1596524400"; d="scan'208";a="166094668" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Oct 2020 16:39:54 -0700 IronPort-SDR: wveeqavO/Pg8tRBrcxNg0GzNQQnRfrZAGq0zFkk+8+/6d2NPD6FD4bML3xNAWyRaYX3iOglRCH y5exeMI4YfSg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,435,1596524400"; d="scan'208";a="352025674" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga004.fm.intel.com with ESMTP; 30 Oct 2020 16:39:54 -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 18:41:19 -0500 Message-Id: <1604101295-15970-8-git-send-email-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1604101295-15970-1-git-send-email-timothy.mcdaniel@intel.com> References: <20200612212434.6852-2-timothy.mcdaniel@intel.com> <1604101295-15970-1-git-send-email-timothy.mcdaniel@intel.com> Subject: [dpdk-dev] [PATCH v11 07/23] event/dlb: 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 modei, but bifurcated mode will be added in a future 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/dlb/dlb.c | 1 + drivers/event/dlb/dlb_iface.c | 27 +++++++++++++++++++++++++++ drivers/event/dlb/dlb_iface.h | 27 +++++++++++++++++++++++++++ drivers/event/dlb/meson.build | 1 + drivers/event/dlb/pf/dlb_pf.c | 1 + 5 files changed, 57 insertions(+) create mode 100644 drivers/event/dlb/dlb_iface.c create mode 100644 drivers/event/dlb/dlb_iface.h diff --git a/drivers/event/dlb/dlb.c b/drivers/event/dlb/dlb.c index 1659f93..8008a50 100644 --- a/drivers/event/dlb/dlb.c +++ b/drivers/event/dlb/dlb.c @@ -33,6 +33,7 @@ #include #include "dlb_priv.h" +#include "dlb_iface.h" #include "dlb_inline_fns.h" /* diff --git a/drivers/event/dlb/dlb_iface.c b/drivers/event/dlb/dlb_iface.c new file mode 100644 index 0000000..dd72120 --- /dev/null +++ b/drivers/event/dlb/dlb_iface.c @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#include + +#include "dlb_priv.h" + +/* DLB 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 (*dlb_iface_low_level_io_init)(struct dlb_eventdev *dlb); + +int (*dlb_iface_open)(struct dlb_hw_dev *handle, const char *name); + +int (*dlb_iface_get_device_version)(struct dlb_hw_dev *handle, + uint8_t *revision); + +int (*dlb_iface_get_num_resources)(struct dlb_hw_dev *handle, + struct dlb_get_num_resources_args *rsrcs); + +int (*dlb_iface_get_cq_poll_mode)(struct dlb_hw_dev *handle, + enum dlb_cq_poll_modes *mode); + diff --git a/drivers/event/dlb/dlb_iface.h b/drivers/event/dlb/dlb_iface.h new file mode 100644 index 0000000..416d1b3 --- /dev/null +++ b/drivers/event/dlb/dlb_iface.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#ifndef _DLB_IFACE_H +#define _DLB_IFACE_H + +/* DLB 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 (*dlb_iface_low_level_io_init)(struct dlb_eventdev *dlb); + +extern int (*dlb_iface_open)(struct dlb_hw_dev *handle, const char *name); + +extern int (*dlb_iface_get_device_version)(struct dlb_hw_dev *handle, + uint8_t *revision); + +extern int (*dlb_iface_get_num_resources)(struct dlb_hw_dev *handle, + struct dlb_get_num_resources_args *rsrcs); + +extern int (*dlb_iface_get_cq_poll_mode)(struct dlb_hw_dev *handle, + enum dlb_cq_poll_modes *mode); + +#endif /* _DLB_IFACE_H */ diff --git a/drivers/event/dlb/meson.build b/drivers/event/dlb/meson.build index b4bdc8b..8707d3d 100644 --- a/drivers/event/dlb/meson.build +++ b/drivers/event/dlb/meson.build @@ -8,6 +8,7 @@ if not is_linux or not dpdk_conf.has('RTE_ARCH_X86_64') endif sources = files('dlb.c', + 'dlb_iface.c', 'pf/dlb_main.c', 'pf/dlb_pf.c' ) diff --git a/drivers/event/dlb/pf/dlb_pf.c b/drivers/event/dlb/pf/dlb_pf.c index 3f836f3..05fd76c 100644 --- a/drivers/event/dlb/pf/dlb_pf.c +++ b/drivers/event/dlb/pf/dlb_pf.c @@ -27,6 +27,7 @@ #include #include "../dlb_priv.h" +#include "../dlb_iface.h" #include "../dlb_inline_fns.h" #include "dlb_main.h" #include "base/dlb_hw_types.h" -- 2.6.4