From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id A8D91A0096 for <public@inbox.dpdk.org>; Mon, 8 Apr 2019 15:29:23 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 1BC122BD8; Mon, 8 Apr 2019 15:29:22 +0200 (CEST) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by dpdk.org (Postfix) with ESMTP id F36D62BCE for <dev@dpdk.org>; Mon, 8 Apr 2019 15:29:19 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Apr 2019 06:29:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,325,1549958400"; d="scan'208";a="140928721" Received: from irsmsx151.ger.corp.intel.com ([163.33.192.59]) by orsmga003.jf.intel.com with ESMTP; 08 Apr 2019 06:29:17 -0700 Received: from irsmsx111.ger.corp.intel.com (10.108.20.4) by IRSMSX151.ger.corp.intel.com (163.33.192.59) with Microsoft SMTP Server (TLS) id 14.3.408.0; Mon, 8 Apr 2019 14:29:16 +0100 Received: from irsmsx108.ger.corp.intel.com ([169.254.11.82]) by irsmsx111.ger.corp.intel.com ([169.254.2.85]) with mapi id 14.03.0415.000; Mon, 8 Apr 2019 14:29:16 +0100 From: "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com> To: Thomas Monjalon <thomas@monjalon.net>, Alan Dewar <alangordondewar@gmail.com> CC: "Yigit, Ferruh" <ferruh.yigit@intel.com>, "Kantecki, Tomasz" <tomasz.kantecki@intel.com>, Stephen Hemminger <stephen@networkplumber.org>, "dev@dpdk.org" <dev@dpdk.org>, Alan Dewar <alan.dewar@att.com> Thread-Topic: [dpdk-dev] [PATCH v7] sched: make RED scaling configurable Thread-Index: AQHU68VWuD8xAnE3ZEmfv9/74qG4naYx4KmAgAAIBgCAAF0JgA== Date: Mon, 8 Apr 2019 13:29:15 +0000 Message-ID: <3EB4FA525960D640B5BDFFD6A3D891268E87276A@IRSMSX108.ger.corp.intel.com> References: <1516032969-23894-1-git-send-email-alan.dewar@att.com> <cffdd4b0-a4c6-8f5e-8715-f699ab5aa84c@intel.com> <CAOEQf6hjC7X0M6+97ba6SC7xhyW0UqgsEQjgfFFs6nca5Z5o1g@mail.gmail.com> <2596922.ozHIldrUZQ@xps> In-Reply-To: <2596922.ozHIldrUZQ@xps> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYzRmZTNiYTQtNTlkYi00ZWNiLTlkMTctZWJjMWZmMTNkZmUxIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiQkZHNDBlMkFMVW5IRExRTllKVlozNnVId3JDa04zSHhaWlNoM1Uxa2pHN1BRM1p2WU5LcWtxRDdmNVBJZFpmcyJ9 x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.600.7 dlp-reaction: no-action x-originating-ip: [163.33.239.180] Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH v7] sched: make RED scaling configurable X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> Message-ID: <20190408132915.6UolzVW0ea9awzIVS2-iKP17_Atf6KxUKJlOGyQUA-M@z> > -----Original Message----- > From: Thomas Monjalon [mailto:thomas@monjalon.net] > Sent: Monday, April 8, 2019 9:53 AM > To: Alan Dewar <alangordondewar@gmail.com> > Cc: Yigit, Ferruh <ferruh.yigit@intel.com>; Dumitrescu, Cristian > <cristian.dumitrescu@intel.com>; Kantecki, Tomasz > <tomasz.kantecki@intel.com>; Stephen Hemminger > <stephen@networkplumber.org>; dev@dpdk.org; Alan Dewar > <alan.dewar@att.com> > Subject: Re: [dpdk-dev] [PATCH v7] sched: make RED scaling configurable >=20 > 08/04/2019 10:24, Alan Dewar: > > On Fri, Apr 5, 2019 at 4:36 PM Ferruh Yigit <ferruh.yigit@intel.com> wr= ote: > > > On 1/16/2018 4:07 PM, alangordondewar@gmail.com wrote: > > > > From: Alan Dewar <alan.dewar@att.com> > > > > > > > > The RED code stores the weighted moving average in a 32-bit integer= as > > > > a pseudo fixed-point floating number with 10 fractional bits. Twel= ve > > > > other bits are used to encode the filter weight, leaving just 10 bi= ts > > > > for the queue length. This limits the maximum queue length support= ed > > > > by RED queues to 1024 packets. > > > > > > > > Introduce a new API to allow the RED scaling factor to be configure= d > > > > based upon maximum queue length. If this API is not called, the RE= D > > > > scaling factor remains at its default value. > > > > > > > > Added some new RED scaling unit-tests to test with RED queue-length= s > > > > up to 8192 packets long. > > > > > > > > Signed-off-by: Alan Dewar <alan.dewar@att.com> > > > > > > Hi Cristian, Alan, > > > > > > The v7 of this patch is sting without any comment for more than a yea= r. > > > What is the status of this patch? Is it still valid? What is blocking= it? > > > > > > For reference patch: > > > https://patches.dpdk.org/patch/33837/ > > > > We are still using this patch against DPDK 17.11 and 18.11 as part of > > the AT&T Vyatta NOS. It is needed to make WRED queues longer than > > 1024 packets work correctly. I'm afraid that I have no idea what is > > holding it up from being merged. >=20 > It will be in a release when it will be merged in the git tree > dpdk-next-qos, managed by Cristian. >=20 I was hoping to get a review & ACK from Tomasz Kantecki, the author of the = WRED code in DPDK, hence the lack of progress on this patch.