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 7DF87A0C47; Tue, 6 Jul 2021 08:25:15 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4652440688; Tue, 6 Jul 2021 08:25:15 +0200 (CEST) Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by mails.dpdk.org (Postfix) with ESMTP id C68DC4067E for ; Tue, 6 Jul 2021 08:25:13 +0200 (CEST) Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.54]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4GJspk6h37z1CF3x; Tue, 6 Jul 2021 14:19:42 +0800 (CST) Received: from dggpeml500024.china.huawei.com (7.185.36.10) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 6 Jul 2021 14:25:07 +0800 Received: from [127.0.0.1] (10.40.190.165) 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 15.1.2176.2; Tue, 6 Jul 2021 14:25:06 +0800 To: Matan Azrad , NBU-Contact-Thomas Monjalon , "ferruh.yigit@intel.com" , "bruce.richardson@intel.com" , "jerinj@marvell.com" , "jerinjacobk@gmail.com" CC: "dev@dpdk.org" , "mb@smartsharesystems.com" , "nipun.gupta@nxp.com" , "hemant.agrawal@nxp.com" , "maxime.coquelin@redhat.com" , "honnappa.nagarahalli@arm.com" , "david.marchand@redhat.com" , "sburla@marvell.com" , "pkapoor@marvell.com" , "konstantin.ananyev@intel.com" , "liangma@liangbit.com" References: <1625231891-2963-1-git-send-email-fengchengwen@huawei.com> From: fengchengwen Message-ID: <698de550-da08-1319-bb86-60ffa71f0cc3@huawei.com> Date: Tue, 6 Jul 2021 14:25:06 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.40.190.165] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500024.china.huawei.com (7.185.36.10) X-CFilter-Loop: Reflected Subject: Re: [dpdk-dev] [PATCH] dmadev: introduce DMA device library 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" On 2021/7/4 23:21, Matan Azrad wrote: > > > From: Chengwen Feng >> This patch introduces 'dmadevice' which is a generic type of DMA >> device. >> >> The APIs of dmadev library exposes some generic operations which can >> enable configuration and I/O with the DMA devices. >> > Did you consider RTE_COMP_ALGO_NULL xform in compressdev library? > em, I just looked at the code. The RTE_COMP_ALGO_NULL is a small feature of the compression device. and currently only mlx5 and isal support it. Also the compressdev dataplane API relatively complicated to do just DMA copy. So I think we need a separate driver framework for the DMA device. thanks [snip] > > > . >