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 14B59A04E6; Sat, 31 Oct 2020 02:20:51 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 9E664C96A; Sat, 31 Oct 2020 02:18:09 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id A8942C85C for ; Sat, 31 Oct 2020 02:17:55 +0100 (CET) IronPort-SDR: 0EkbKtMRq/9ZC5DAoGyhGMhImIWE+1hNFf9j2+myBoAfwDsHEXNIr7rCrgYELpBhqsb8vH1KZI li8ocxXVDNuQ== X-IronPort-AV: E=McAfee;i="6000,8403,9790"; a="148542961" X-IronPort-AV: E=Sophos;i="5.77,435,1596524400"; d="scan'208";a="148542961" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Oct 2020 18:17:55 -0700 IronPort-SDR: zn207Su1ipRubRh5ElPURHZ8swFWIfzfK2eIw/23+h4tUBgy5B42L94Ok3q4KotLf6rk92fv9F VxM+I6w7K6VQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,435,1596524400"; d="scan'208";a="527300689" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga005.fm.intel.com with ESMTP; 30 Oct 2020 18:17:54 -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 20:19:19 -0500 Message-Id: <1604107175-25423-8-git-send-email-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1604107175-25423-1-git-send-email-timothy.mcdaniel@intel.com> References: <20200612212434.6852-2-timothy.mcdaniel@intel.com> <1604107175-25423-1-git-send-email-timothy.mcdaniel@intel.com> Subject: [dpdk-dev] [PATCH v12 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