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 C8E86A0C41; Thu, 18 Nov 2021 17:28:26 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id A187740687; Thu, 18 Nov 2021 17:28:26 +0100 (CET) Received: from mail-il1-f182.google.com (mail-il1-f182.google.com [209.85.166.182]) by mails.dpdk.org (Postfix) with ESMTP id 1EF9F40395; Thu, 18 Nov 2021 17:28:25 +0100 (CET) Received: by mail-il1-f182.google.com with SMTP id h23so7069647ila.4; Thu, 18 Nov 2021 08:28:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KY+WHH1aom9nJKkdQEqhzlB/yk6r5D5a9c2vgIwL9NA=; b=hOm3kbvk8AJa/SRfGjO+N/9dtOUkzdk5ancbgrSEYU+VdHMxZIKS5+idJcSQujhQRe E1AMeFRkqdZpwbJ+Jy8PrZDodWjKPlwDF7bXfBBosdRGb2i1Aw7FXi45f41vSGoSFIQq qL4gnVi2nfOEPoy+l9+nRpOjtKDtAE6OZwQIGpftFkytUy+8KV0CiDNvf1cbJjEdw6E2 7B0Pb1sub5XuBL3hBvW+5yKc16QMEI7bc4DwCC/gRsK+8JWvwVsiuz+V0QSoGqpcYr2P Y8DQTznw8JbgY/v7phlH4b8SIruJfbuOR7/p1ZpnY+jegt8qsJxGOMzl7mxXjQTepd+m i3Ow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KY+WHH1aom9nJKkdQEqhzlB/yk6r5D5a9c2vgIwL9NA=; b=Bg+6RLs3j53D7Ci+uOGX1rkjvQV8L3VlC6dc/SVC7AhFR3ym8N2MXYbBVqBB2un2D+ WPealNCYLlFClLTRCfdmnzS2tzqAsPSZOWCSnDZXsdOm7/zO3BCkrYMHhGGxhBaf1WBY Zh46j5Q6l/yZtucSJaUsrapgeVhs7GJ765tOP9/wtVuPm9PqWVijhiGTtEV3JsvMNgQT RdWOuc2q7aAInZMa/4N7WH3JOlc2DLYJeTQGGsaeNJBdHTKph8sJUim/DJGjM5BzJoRm WWNF/hOWpHyM+Ly/h8oL0TKBf2vfOJLH3wRH/m8D7HqLkaCSrCt3RvwmnSJ+cPglCyP2 yDpA== X-Gm-Message-State: AOAM530ful2kucvu/2wgW2eOAkuxdjBktT6ktGYbwK4pqol2P2wOedaU dCDE9Nn/DLBhbzMStMkyPWsgGLv6oOXWTM1H9nM= X-Google-Smtp-Source: ABdhPJzolLtMa6+REDPXklxK2lnSceHv94B5Atxh2DxHhTrf7cy1Dv1oNvrIHb/jooiQIVcGJbXPb6czlZLC/EogZSM= X-Received: by 2002:a05:6e02:1bcb:: with SMTP id x11mr258375ilv.94.1637252904424; Thu, 18 Nov 2021 08:28:24 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Jerin Jacob Date: Thu, 18 Nov 2021 21:57:58 +0530 Message-ID: Subject: Re: [dpdk-dev] Minutes of Technical Board Meeting, 2021-Oct-27 To: Honnappa Nagarahalli Cc: "Ananyev, Konstantin" , "thomas@monjalon.net" , Ferruh Yigit , "Ajit Khaparde (ajit.khaparde@broadcom.com)" , Andrew Boyer , Andrew Rybchenko , Beilei Xing , "Richardson, Bruce" , Chas Williams , "Xia, Chenbo" , Ciara Loftus , Devendra Singh Rawat , Ed Czeck , Evgeny Schemeilin , Gaetan Rivet , Gagandeep Singh , Guoyang Zhou , Haiyue Wang , Harman Kalra , "heinrich.kuhn@corigine.com" , "hemant.agrawal@nxp.com" , Hyong Youb Kim , Igor Chauskin , Igor Russkikh , Jakub Grajciar , Jasvinder Singh , Jian Wang , Jiawen Wu , Jingjing Wu , John Daley , John Miller , "John W. Linville" , "Wiles, Keith" , Kiran Kumar K , Lijun Ou , Liron Himi , Long Li , Marcin Wojtas , Martin Spinler , Matan Azrad , Matt Peters , Maxime Coquelin , Michal Krawczyk , "Min Hu (Connor" , Pradeep Kumar Nalla , Nithin Dabilpuram , Qiming Yang , Qi Zhang , Radha Mohan Chintakuntla , Rahul Lakkireddy , Rasesh Mody , Rosen Xu , Sachin Saxena , Satha Koteswara Rao Kottidi , Shahed Shaikh , Shai Brandes , Shepard Siegel , Somalapuram Amaranath , Somnath Kotur , Stephen Hemminger , Steven Webster , Sunil Kumar Kori , Tetsuya Mukawa , Veerasenareddy Burru , Viacheslav Ovsiienko , Xiao Wang , Xiaoyun Wang , Yisen Zhuang , Yong Wang , Ziyang Xuan , Prasun Kapoor , "nadavh@marvell.com" , Satananda Burla , Narayana Prasad , Akhil Goyal , Ray Kinsella , Dmitry Kozlyuk , Anatoly Burakov , Cristian Dumitrescu , =?UTF-8?Q?Mattias_R=C3=B6nnblom?= , Ruifeng Wang , David Christensen , Olivier Matz , "Jayatheerthan, Jay" , Ashwin Sekhar Thalakalath Kottilveetil , Pavan Nikhilesh , Elena Agostini , "dev@dpdk.org" , "techboard@dpdk.org" , nd Content-Type: text/plain; charset="UTF-8" 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 On Thu, Nov 18, 2021 at 8:44 PM Honnappa Nagarahalli wrote: > > > > > > > There was a comment to remove the TLV length. I will do that next > > > > version with implementation. > > > > > > > > Identified the following set of work for this. > > > > > > > > 1) Common code at lib/dwa/ > > > > 2) Marvell DPU based driver at drivers/dwa/cnxk/ > > > > 3) Test application at app/test-dwa/ > > > > 4) It is possible to have an SW driver(To allow non-specialized HW > > > > to use the > > > > framework) for this by: > > > > a) Emulate DWA HW as a separate DPDK process > > > > b) Add drivers/dwa/sw/ and use memif driver so to create a > > > > communication channel between emulated DWA HW process and DPDK > > application. > > > Why use memif driver? Why not ring-pmd? > > > > Planning to emulation DWA accelerator functional model as a separate DPDK > > process in SW case. > You mean the primary and secondary processes correct? Primary and Primary. (DWA emulation as a separate primary process to mimic the real-world scenario) > > > Therefore memif is the ideal choice as it supports zero-copy of the data as > > well. > > https://doc.dpdk.org/guides/nics/memif.html > Zero-copy in memif is nothing but exchanging pointers to shared data. > The rings work across the primary and secondary processes and are always zero-copy. > We are doing some perf comparisons between memif and rings, will let you know once we have the data. Ok. I think between primary to primary memif will be required. > > > > > > > > > > c) Add drivers/dwa/sw/profiles//l3fwd - To implement l3fwd profile > > > > using DPDK libraries for SW driver. > > > > > > > > I think, Item (4) aka SW drivers as useful(We don't need to > > > > implement for all profiles, I think, just for l3fwd it make sense > > > > to add, to allow to use of the framework in just SW mode). > > > > Is there any opinion on adding item (4) in DPDK? I saw mixed > > > > opinions earlier on this. I would like to understand, Is there any > > > > objection to doing > > > > item(4) in DPDK as it needs a good amount of work and I don't want > > > > to do throw it away if the community doesn't like this. > > > > Any opinion? > > > > > > > > [1] > > > > http://mails.dpdk.org/archives/dev/2021-October/226070.html > > > > > > >