From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id B2E59A0C46; Tue, 7 Sep 2021 15:01:13 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4C43141186; Tue, 7 Sep 2021 15:01:00 +0200 (CEST) Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by mails.dpdk.org (Postfix) with ESMTP id CA6834117C for ; Tue, 7 Sep 2021 15:00:56 +0200 (CEST) Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.54]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4H3ljc0dBlz1DGhF; Tue, 7 Sep 2021 21:00:04 +0800 (CST) Received: from dggpeml500024.china.huawei.com (7.185.36.10) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Tue, 7 Sep 2021 21:00:54 +0800 Received: from localhost.localdomain (10.67.165.24) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Tue, 7 Sep 2021 21:00:54 +0800 From: Chengwen Feng To: , , , , , CC: , , , , , , , , , , , Date: Tue, 7 Sep 2021 20:56:45 +0800 Message-ID: <20210907125649.49794-4-fengchengwen@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210907125649.49794-1-fengchengwen@huawei.com> References: <1625231891-2963-1-git-send-email-fengchengwen@huawei.com> <20210907125649.49794-1-fengchengwen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.67.165.24] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpeml500024.china.huawei.com (7.185.36.10) X-CFilter-Loop: Reflected Subject: [dpdk-dev] [PATCH v21 3/7] dmadev: introduce DMA device library PMD header X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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 patch introduce DMA device library PMD header which was driver facing APIs for a DMA device. Signed-off-by: Chengwen Feng Acked-by: Bruce Richardson Acked-by: Morten Brørup Reviewed-by: Kevin Laatz Reviewed-by: Conor Walsh --- lib/dmadev/meson.build | 1 + lib/dmadev/rte_dmadev.h | 2 ++ lib/dmadev/rte_dmadev_pmd.h | 72 +++++++++++++++++++++++++++++++++++++ lib/dmadev/version.map | 10 ++++++ 4 files changed, 85 insertions(+) create mode 100644 lib/dmadev/rte_dmadev_pmd.h diff --git a/lib/dmadev/meson.build b/lib/dmadev/meson.build index f421ec1909..833baf7d54 100644 --- a/lib/dmadev/meson.build +++ b/lib/dmadev/meson.build @@ -3,3 +3,4 @@ headers = files('rte_dmadev.h') indirect_headers += files('rte_dmadev_core.h') +driver_sdk_headers += files('rte_dmadev_pmd.h') diff --git a/lib/dmadev/rte_dmadev.h b/lib/dmadev/rte_dmadev.h index 76d71615eb..c8dd0009f5 100644 --- a/lib/dmadev/rte_dmadev.h +++ b/lib/dmadev/rte_dmadev.h @@ -730,6 +730,8 @@ struct rte_dmadev_sge { uint32_t length; /**< The DMA operation length. */ }; +#include "rte_dmadev_core.h" + /* DMA flags to augment operation preparation. */ #define RTE_DMA_OP_FLAG_FENCE (1ull << 0) /**< DMA fence flag. diff --git a/lib/dmadev/rte_dmadev_pmd.h b/lib/dmadev/rte_dmadev_pmd.h new file mode 100644 index 0000000000..45141f9dc1 --- /dev/null +++ b/lib/dmadev/rte_dmadev_pmd.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2021 HiSilicon Limited. + */ + +#ifndef _RTE_DMADEV_PMD_H_ +#define _RTE_DMADEV_PMD_H_ + +/** + * @file + * + * RTE DMA Device PMD APIs + * + * Driver facing APIs for a DMA device. These are not to be called directly by + * any application. + */ + +#include "rte_dmadev.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @internal + * Allocates a new dmadev slot for an DMA device and returns the pointer + * to that slot for the driver to use. + * + * @param name + * DMA device name. + * + * @return + * A pointer to the DMA device slot case of success, + * NULL otherwise. + */ +__rte_internal +struct rte_dmadev * +rte_dmadev_pmd_allocate(const char *name); + +/** + * @internal + * Release the specified dmadev. + * + * @param dev + * Device to be released. + * + * @return + * - 0 on success, negative on error + */ +__rte_internal +int +rte_dmadev_pmd_release(struct rte_dmadev *dev); + +/** + * @internal + * Return the DMA device based on the device name. + * + * @param name + * DMA device name. + * + * @return + * A pointer to the DMA device slot case of success, + * NULL otherwise. + */ +__rte_internal +struct rte_dmadev * +rte_dmadev_get_device_by_name(const char *name); + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_DMADEV_PMD_H_ */ diff --git a/lib/dmadev/version.map b/lib/dmadev/version.map index 2e37882364..d027eeac97 100644 --- a/lib/dmadev/version.map +++ b/lib/dmadev/version.map @@ -22,3 +22,13 @@ EXPERIMENTAL { local: *; }; + +INTERNAL { + global: + + rte_dmadev_get_device_by_name; + rte_dmadev_pmd_allocate; + rte_dmadev_pmd_release; + + local: *; +}; -- 2.33.0