From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id EACFF1B200 for ; Tue, 18 Dec 2018 19:41:09 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2018 10:41:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,368,1539673200"; d="scan'208";a="119861966" Received: from fmsmsx107.amr.corp.intel.com ([10.18.124.205]) by orsmga001.jf.intel.com with ESMTP; 18 Dec 2018 10:41:08 -0800 Received: from fmsmsx125.amr.corp.intel.com (10.18.125.40) by fmsmsx107.amr.corp.intel.com (10.18.124.205) with Microsoft SMTP Server (TLS) id 14.3.408.0; Tue, 18 Dec 2018 10:41:08 -0800 Received: from fmsmsx126.amr.corp.intel.com ([169.254.1.214]) by FMSMSX125.amr.corp.intel.com ([169.254.2.180]) with mapi id 14.03.0415.000; Tue, 18 Dec 2018 10:41:08 -0800 From: "Luse, Paul E" To: Stephen Hemminger CC: "dev@dpdk.org" , "akhil.goyal@nxp.com" , "Jozwiak, TomaszX" , "shally.verma@caviumnetworks.com" , "ashish.gupta@caviumnetworks.com" , "Daly, Lee" , "Trahe, Fiona" Thread-Topic: [dpdk-dev] [PATCH] compressdev: add feature flag to specify where processing is done Thread-Index: AdSXATUymvp4Fu0nQ8+eNMZJ8WbQOQ== Date: Tue, 18 Dec 2018 18:41:07 +0000 Message-ID: <82C9F782B054C94B9FC04A331649C77AB8C56A55@FMSMSX126.amr.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiMjA0N2I4ZTctZTZlMy00MzJkLWE5YjctZjNmZGJmNjdjNDhlIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiRitibXJRbE5ZRjNZTlA3a0VJQUVxczRzbW84eDhIcGVmY1wvZVZ3UVhMWVpiRzRneHJlMzN4alFDa0NqeFwvekRGIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [10.1.200.106] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH] compressdev: add feature flag to specify where processing is done X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Dec 2018 18:41:10 -0000 Resend wrong subject -----Original Message----- From: Trahe, Fiona Sent: Tuesday, December 18, 2018 7:43 AM To: Stephen Hemminger Cc: dev@dpdk.org; akhil.goyal@nxp.com; Jozwiak, TomaszX ; shally.verma@caviumnetworks.com; ashish.gupta@caviumnetworks.com;= Daly, Lee ; Luse, Paul E ; Trah= e, Fiona Subject: RE: [dpdk-dev] [PATCH] compressdev: add feature flag to specify wh= ere processing is done Hi Stephen //snip// > > > Subject: Re: [dpdk-dev] [PATCH] compressdev: add feature flag to=20 > > > specify where processing is done > > > > > > On Tue, 20 Nov 2018 01:39:48 +0000 Fiona Trahe=20 > > > wrote: > > > > > > > A new device feature flag, RTE_COMPDEV_FF_SW_OP_DONE_IN_DEQUEUE > > > > is added. A PMD which processes operations using a software=20 > > > > acceleration engine should set this if the bulk of the=20 > > > > processing is done during the dequeue. It should leave it=20 > > > > cleared if the bulk of the processing is done during the enqueue=20 > > > > (default). > > > > An application may find this useful for tuning. > > > > > > > > Signed-off-by: Fiona Trahe > > > > > > What application? or is this "if we build it they will come?" > > [Fiona] Our storage team asked for this, so not quite. > > Seems like it might by generically useful, so a bit of the latter=20 > > too :) Would you prefer I removed that line? >=20 > Hopefully, there would be one or more open source projects using the API. > I just did a survey of DPDK an 1/3 of it is never used by any open=20 > source project. Hate to see more dead code and special cases created. >=20 > At least, some example code in examples would help. Something like a=20 > simple in memory compressed storage server using a network API=20 > (SMB?/SSH?/FTP?) [Fiona] There is no compressdev sample app yet.=20 However I've double-checked with the SPDK team, they're currently integrati= ng compressdev and intend to push a patch to SPDK - a storage open-source p= roject - using this flag. Acked-by: Paul Luse