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From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: Jerin Jacob <jerinjacobk@gmail.com>
Cc: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
	"thomas@monjalon.net" <thomas@monjalon.net>,
	"Ferruh Yigit" <ferruh.yigit@intel.com>,
	"Ajit Khaparde (ajit.khaparde@broadcom.com)"
	<ajit.khaparde@broadcom.com>, "Andrew Boyer" <aboyer@pensando.io>,
	"Andrew Rybchenko" <andrew.rybchenko@oktetlabs.ru>,
	"Beilei Xing" <beilei.xing@intel.com>,
	"Richardson, Bruce" <bruce.richardson@intel.com>,
	"Chas Williams" <chas3@att.com>,
	"Xia, Chenbo" <chenbo.xia@intel.com>,
	"Ciara Loftus" <ciara.loftus@intel.com>,
	"Devendra Singh Rawat" <dsinghrawat@marvell.com>,
	"Ed Czeck" <ed.czeck@atomicrules.com>,
	"Evgeny Schemeilin" <evgenys@amazon.com>,
	"Gaetan Rivet" <grive@u256.net>,
	"Gagandeep Singh" <g.singh@nxp.com>,
	"Guoyang Zhou" <zhouguoyang@huawei.com>,
	"Haiyue Wang" <haiyue.wang@intel.com>,
	"Harman Kalra" <hkalra@marvell.com>,
	"heinrich.kuhn@corigine.com" <heinrich.kuhn@corigine.com>,
	"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
	"Hyong Youb Kim" <hyonkim@cisco.com>,
	"Igor Chauskin" <igorch@amazon.com>,
	"Igor Russkikh" <irusskikh@marvell.com>,
	"Jakub Grajciar" <jgrajcia@cisco.com>,
	"Jasvinder Singh" <jasvinder.singh@intel.com>,
	"Jian Wang" <jianwang@trustnetic.com>,
	"Jiawen Wu" <jiawenwu@trustnetic.com>,
	"Jingjing Wu" <jingjing.wu@intel.com>,
	"John Daley" <johndale@cisco.com>,
	"John Miller" <john.miller@atomicrules.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	"Wiles, Keith" <keith.wiles@intel.com>,
	"Kiran Kumar K" <kirankumark@marvell.com>,
	"Lijun Ou" <oulijun@huawei.com>,
	"Liron Himi" <lironh@marvell.com>,
	"Long Li" <longli@microsoft.com>,
	"Marcin Wojtas" <mw@semihalf.com>,
	"Martin Spinler" <spinler@cesnet.cz>,
	"Matan Azrad" <matan@nvidia.com>,
	"Matt Peters" <matt.peters@windriver.com>,
	"Maxime Coquelin" <maxime.coquelin@redhat.com>,
	"Michal Krawczyk" <mk@semihalf.com>,
	"Min Hu (Connor" <humin29@huawei.com>,
	"Pradeep Kumar Nalla" <pnalla@marvell.com>,
	"Nithin Dabilpuram" <ndabilpuram@marvell.com>,
	"Qiming Yang" <qiming.yang@intel.com>,
	"Qi Zhang" <qi.z.zhang@intel.com>,
	"Radha Mohan Chintakuntla" <radhac@marvell.com>,
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	"Rasesh Mody" <rmody@marvell.com>,
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	"Shahed Shaikh" <shshaikh@marvell.com>,
	"Shai Brandes" <shaibran@amazon.com>,
	"Shepard Siegel" <shepard.siegel@atomicrules.com>,
	"Somalapuram Amaranath" <asomalap@amd.com>,
	"Somnath Kotur" <somnath.kotur@broadcom.com>,
	"Stephen Hemminger" <sthemmin@microsoft.com>,
	"Steven Webster" <steven.webster@windriver.com>,
	"Sunil Kumar Kori" <skori@marvell.com>,
	"Tetsuya Mukawa" <mtetsuyah@gmail.com>,
	"Veerasenareddy Burru" <vburru@marvell.com>,
	"Viacheslav Ovsiienko" <viacheslavo@nvidia.com>,
	"Xiao Wang" <xiao.w.wang@intel.com>,
	"Xiaoyun Wang" <cloud.wangxiaoyun@huawei.com>,
	"Yisen Zhuang" <yisen.zhuang@huawei.com>,
	"Yong Wang" <yongwang@vmware.com>,
	"Ziyang Xuan" <xuanziyang2@huawei.com>,
	"Prasun Kapoor" <pkapoor@marvell.com>,
	"nadavh@marvell.com" <nadavh@marvell.com>,
	"Satananda Burla" <sburla@marvell.com>,
	"Narayana Prasad" <pathreya@marvell.com>,
	"Akhil Goyal" <gakhil@marvell.com>,
	"Ray Kinsella" <mdr@ashroe.eu>,
	"Dmitry Kozlyuk" <dmitry.kozliuk@gmail.com>,
	"Anatoly Burakov" <anatoly.burakov@intel.com>,
	"Cristian Dumitrescu" <cristian.dumitrescu@intel.com>,
	"Mattias Rönnblom" <mattias.ronnblom@ericsson.com>,
	"Ruifeng Wang" <Ruifeng.Wang@arm.com>,
	"David Christensen" <drc@linux.vnet.ibm.com>,
	"Olivier Matz" <olivier.matz@6wind.com>,
	"Jayatheerthan, Jay" <jay.jayatheerthan@intel.com>,
	"Ashwin Sekhar Thalakalath Kottilveetil" <asekhar@marvell.com>,
	"Pavan Nikhilesh" <pbhagavatula@marvell.com>,
	"Elena Agostini" <eagostini@nvidia.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"techboard@dpdk.org" <techboard@dpdk.org>, nd <nd@arm.com>,
	nd <nd@arm.com>
Subject: RE: [dpdk-dev] Minutes of Technical Board Meeting, 2021-Oct-27
Date: Thu, 18 Nov 2021 15:13:39 +0000	[thread overview]
Message-ID: <DBAPR08MB5814CE829282BC0011DD70AC989B9@DBAPR08MB5814.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <CALBAE1NhOKdZHFAHDDNyMFSoJ4g2Lqaypa0Vv5vc_u-jVCZ0vQ@mail.gmail.com>

<snip>

> > > 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?

> 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.

> 
> >
> > > 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
> > >
> > <snip>

  reply	other threads:[~2021-11-18 15:14 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-02 15:39 Ananyev, Konstantin
2021-11-11 11:44 ` Jerin Jacob
2021-11-11 12:32   ` Ananyev, Konstantin
2021-11-12  0:56     ` Honnappa Nagarahalli
2021-11-12  1:46       ` Ananyev, Konstantin
2021-11-12  6:19         ` Jerin Jacob
2021-11-12  2:24   ` Honnappa Nagarahalli
2021-11-12  6:26     ` Jerin Jacob
2021-11-18 15:13       ` Honnappa Nagarahalli [this message]
2021-11-18 16:27         ` Jerin Jacob
2021-11-18 20:07           ` Honnappa Nagarahalli
2021-11-19  4:34             ` Jerin Jacob

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