From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5E0A0C4332F for ; Mon, 31 Jan 2022 11:51:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377391AbiAaLvf (ORCPT ); Mon, 31 Jan 2022 06:51:35 -0500 Received: from esa5.hgst.iphmx.com ([216.71.153.144]:24437 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377151AbiAaLtc (ORCPT ); Mon, 31 Jan 2022 06:49:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1643629771; x=1675165771; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=ZqRDfmeC7gSqlp2AvRocSOZwLJK1Ix8VOc+4HY0faIQ=; b=BzvkPJr6SkTnmaMYkPifyAnlg0Hsf+aMs4zd5Q2Rhq1KpLHIcS+mJDLC aEpyBMyQFlxxx/EmAllM4LTGW1SDCXpKDp2Hd/syB+JxF8Xpj9J8rMtmI e6o8cb0YB5anFuW7LR3DjvfdugGRe0BpNGXjoEWvJ2mGexovkQ7IWDU9J VAbEEpsOhAK7WmncYvZsTpehEtUGfZ8yPRNUQNcKVzAZlmieFd2qGuo5A jsdeXKlOP5TeK4np03hkSlax8wktp165U8SO2ZI3XPmpdxDEmhkKlVzZA Qg9uqT6UpbCkINjwaaofUT3eFu4h669HJ3V2ts3ysL+t8/HGj0U+w5SXA g==; X-IronPort-AV: E=Sophos;i="5.88,330,1635177600"; d="scan'208";a="191798219" Received: from mail-co1nam11lp2170.outbound.protection.outlook.com (HELO NAM11-CO1-obe.outbound.protection.outlook.com) ([104.47.56.170]) by ob1.hgst.iphmx.com with ESMTP; 31 Jan 2022 19:49:28 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TiqTBnJJ2rtjBnVwcR357iV7NU4/lP8Klhqt4iAzC1KID03Jrm/lhryw3j2hFv+tSFjRn9qt0ynmCXC69td9TwOg4LB1mqO+Jc0ZYrop7sn235hwmrFi2Yt1D/cqoZXm4EMdhFFm45aX0REjoizSnBTV5zMImUBMbbBkHQN7oMra1YxRv6WVMoVNsFpkm1OOLeX+KIdOs3Lh+/Jg97cXqxkZovKyWbfLBtPyDHsPuN4m26fb5XVor3KAL3Wlm0/l50qTX8yYAH4z37KreX2k5KMyt4E5jjXzE3BiTVyye+j1azfTq6/hhDiTm8sGoLzZqUjmf6De6QqjmH13elaJkQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=ZqRDfmeC7gSqlp2AvRocSOZwLJK1Ix8VOc+4HY0faIQ=; b=dMguEMtBclVQrQlIjVstp3egpI8V9ZJffvk65MVSyO9FJXhfjdgyZ8zQ7UIHC38EYa23Iznx18DqokDvacR2pVSQ2gHQY4nKRhFzkqMx3RODfvl8oQSFa9li2k07shgGqy6NAHmJjwLLGQa5jw7sDl8hgSLxy8tPBM42qQTIBxXCNh3D7gdSiEfcbFLls65NPEZLpoSaDSNlvcLS2sdEHpH3y25mKzBL0no1ydgf2QK/R7qfrPDtZOG+GAV8VSkjSzEGBAdaa3tbqLfeGoKeDnTzajZZzm3xZdpXo9nxLmUY6KPRc1FBu8BAfpzd/GWwSxGUrjyS74s2Mf+rYDDFaA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sharedspace.onmicrosoft.com; s=selector2-sharedspace-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ZqRDfmeC7gSqlp2AvRocSOZwLJK1Ix8VOc+4HY0faIQ=; b=FXT6Yjm0bmzGnmbHG4Sdcy/uJ0f2kb/XUE3K7zqx9YA5lbDlrA/KnvRs0JLXZ2d4pRAr4nIJClU+nFtRQpY0ck/dFCYlVP2BqgEQI7KCbqk6REfM6AbQb8BJYxbgZ8tXmlaYju3wNIYUuLhi2bAUNuNQ01LTLMOvmenxe5gpbzQ= Received: from PH0PR04MB7416.namprd04.prod.outlook.com (2603:10b6:510:12::17) by MN2PR04MB5504.namprd04.prod.outlook.com (2603:10b6:208:df::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4930.15; Mon, 31 Jan 2022 11:49:28 +0000 Received: from PH0PR04MB7416.namprd04.prod.outlook.com ([fe80::8d9e:d733:bca6:bc0f]) by PH0PR04MB7416.namprd04.prod.outlook.com ([fe80::8d9e:d733:bca6:bc0f%5]) with mapi id 15.20.4930.022; Mon, 31 Jan 2022 11:49:28 +0000 From: Johannes Thumshirn To: "chaitanyak@nvidia.com" , "a.manzanares@samsung.com" CC: "clm@fb.com" , "josef@toxicpanda.com" , "lsf-pc@lists.linux-foundation.org" , "linux-nvme@lists.infradead.org" , "kbusch@kernel.org" , "osandov@fb.com" , "bvanassche@acm.org" , "dm-devel@redhat.com" , "linux-scsi@vger.kernel.org" , "mpatocka@redhat.com" , "djwong@kernel.org" , "dsterba@suse.com" , "msnitzer@redhat.com" , "Frederick.Knight@netapp.com" , "hch@lst.de" , "hare@suse.de" , "roland@purestorage.com" , "tytso@mit.edu" , "axboe@kernel.dk" , "linux-block@vger.kernel.org" , "zach.brown@ni.com" , "linux-fsdevel@vger.kernel.org" , "jack@suse.com" , "martin.petersen@oracle.com" Subject: Re: [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload Thread-Topic: [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload Thread-Index: AQHYE018isCsN3oz40OdcqzMcXhV7qx5YsQAgAOn04A= Date: Mon, 31 Jan 2022 11:49:28 +0000 Message-ID: <69241add19fddd4168c9f2ae15fd08e8e701f8ec.camel@wdc.com> References: <20220128195956.GA287797@bgt-140510-bm01> In-Reply-To: <20220128195956.GA287797@bgt-140510-bm01> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Evolution 3.42.3 authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=wdc.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: e0ff18da-5e0f-4426-bea0-08d9e4afbc83 x-ms-traffictypediagnostic: MN2PR04MB5504:EE_ x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:7219; x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR04MB7416.namprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(4636009)(366004)(5660300002)(38100700002)(82960400001)(38070700005)(2906002)(4744005)(122000001)(6506007)(6512007)(7416002)(316002)(71200400001)(6486002)(54906003)(508600001)(26005)(8676002)(4326008)(8936002)(64756008)(110136005)(186003)(2616005)(66946007)(66556008)(66446008)(66476007)(91956017)(76116006)(86362001)(36756003)(20210929001);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?ck9DL1Q4WHpGbjNGSnAyVG1qWmJtU0MwQzdZbWY1VWtYS2hQcVh3R0pGRkNn?= =?utf-8?B?eFFaQjRQZDhidGtMb0lHK0h0Y0ZWMmxoK3g0cTQyRCtjNnk3cCtCL1RIRFBh?= =?utf-8?B?N3BLaE1zWVp1TnFkS0QwZUVPMjVVRkw1OFBqSkZTZm1SWjROaSsrNGRYdWE5?= =?utf-8?B?Yy9XT2tLL1VIakJYWW5NeUp6WTVSVVJuRm9RbU0yQXV5endUMGhveXVQVEVn?= =?utf-8?B?dkxIWVBLdzQzTDh4MzBLSDV4Skp4MmVuZ2tTQTkrUnBFdzdOeEYzSkpQYysx?= =?utf-8?B?RWRxdlY2NFhQeGw0TGVlcit5SUtORWtIUTc4NXNhVWsvNW5ySlpxUFQ2ZWE2?= =?utf-8?B?RytzTmVFWklsVjE0dnl4OFF1SjJPQ3dZN0diMVNsOEQ2dGx0RjJ4Z3RaUW00?= =?utf-8?B?SGEwd0lxSEdFdTNob0RhN2ZJeEdRZWpaUTVOV055ZmJaaHJRUjNnVVJHdkZO?= =?utf-8?B?YVJEYndSRzcvdDJIL2dtejV4L0hReG45aUJUS3hFZENNb05iMVFMMlJxS1pq?= =?utf-8?B?OXZVTllRZCtpMlpxcEFjUkZydmxkU3dyb1czSUE2MFM0SmViRkNvcXgwU3BT?= =?utf-8?B?OUZZOVgvRlFrR3VDQS9ienlwbnJOY3grcFFpOWE4a0wwUEkyNTFlaWtRMlJZ?= =?utf-8?B?TEtCVFpnUDJkeWM5VGxYQm92VzBGRktKZTVraVhyTmdSa2lYeUcvMnl5M3Ri?= =?utf-8?B?NVNOM1JvZGh6cVpUQkhNT0JUYmtjSkRPNU5XdzZjckZEaWRhV1R6NlJWN083?= =?utf-8?B?aGZJeDQyMXpPbFhLRXgvUE1mRUFhQUNBMzVOZXNIcWpETGgrOVZ2dEwwSUw3?= =?utf-8?B?VFpKL0VVblFmb29sTWRzcWhCd2owYVlzSWFQeDk0eUFTbEJ4bGxZTVRQR2J1?= =?utf-8?B?bFZqTGdOMkZ4dVYxdE9GTHNCUktNMTllS3YzK2kwQkgzZVY0U1N0TEYyWVo4?= =?utf-8?B?Mll4R3hKM1dQbHJkRFRISHNXNW96WFlhTkNYclIxKzVKYjJkaHdwY3l1bldh?= =?utf-8?B?SnhiMjlHU3BIVnBQZ2tqVVJKUVpMSWFweUVaQVcwTkZLRFd6MU5EV1RVeVRQ?= =?utf-8?B?SXZ3a3FyVGJsWTk0NXM2am54enorUXllZlg4ZWZ5L01FYS9Ra2N6SFBwRU1F?= =?utf-8?B?V3AzTHYyTHVPZFFpa2JLSkF5TEpDV3JiYnJVUm0zNU1nYkRYN2NPazhqTTZu?= =?utf-8?B?NGZ0WmtBMHRCQVhJek9NSjAxZlRZNHJ2UUZUdFBPbDNQNlQ4N1dnTjBsWHly?= =?utf-8?B?ODM0UnZYRHhMeE04Mk1GdkhtYThOL002dU1WbHVzRklNNjYzbnh6cmZIOUZk?= =?utf-8?B?eTZ6L0xRcWVnTEFYY3VvblFqUkZ6ZEkvcE5yNDA4cG1aS0lKb21VdTREV0Fk?= =?utf-8?B?alFMdnlVQ1dVanM0RFAreXR3RHJjSkgwcGJRTlluYm1Od2R0WWo0OFVOVkNO?= =?utf-8?B?eG1LZnkrbkw1eTVSSlh1b3RaYnpkNi9CNkQ4TVRncFFjK1JwOXF5K2hDeWVO?= =?utf-8?B?bUd0QVF0ZzY2VHRUTi9ickpjRElLVGl3eUtydnJnb2wrcXZqSkpkaGFVaHR1?= =?utf-8?B?RTV6NmxjL2owc243aVB3RnBWSUpIaHRLdmNkUnk2dlVvWjFMK2ZEMFVrYVFr?= =?utf-8?B?VTU1UDhGYmQ0S09TeU9OM3NybDBnMkk5QmZzSmpQaGtvZVE3TTB2Q2JpcGY4?= =?utf-8?B?TFVXenlQWEdVQ29NYTMweDhUa0R0YnVvUnRXZm9XT2oyUkYrTk11d3VUZ28z?= =?utf-8?B?K2piZkJ2d2trTmRlSWlJZWRKZWl5THNXYm1Na1pWOUxQRzQ2K0IvTDNkWW94?= =?utf-8?B?WlV2RDRRMjZkRDVUV25oYTE3bHRyTkZIZ2pjTnZXVWgxWEZzNzZxTVlPUFhO?= =?utf-8?B?OWtwcjNabmh4aTA2VjYrQUxCeGVmUUZORTVTbmVGUFNLNmlON0c0cXE5eVVO?= =?utf-8?B?MGg3MVVORDF2dXFSNFJNTTNSUytxeGtjbkhrT0RTNDlJaGppRWozT1JvbDdr?= =?utf-8?B?V3BvbWM0WGtpcHEwRGhYb1dwNkNWTmhWRE5sajNUaDUrM2JrbzlnSmV0ZGxk?= =?utf-8?B?cEdrbUdpeitueGhOMHZOOCtSNDhMUGNmOE54aS9Cd3BkRzdkT2hOVm9aanpK?= =?utf-8?B?MVVBWmhrL3loS2RvbWhZU1dmTWF0MXhKTUlGVVlOSy9Xdkw0Vkk4SkZMNnh6?= =?utf-8?B?ZjVIRXBza05aNTRXY0p6VDU5ck1SUVZ1aDFyaUdiLzNrZVo2TWdWWVowQnVm?= =?utf-8?Q?BNkE+4TTJlJrTLcYn3CpgRGlhf+kfX5XldD+DuTuyU=3D?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PH0PR04MB7416.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: e0ff18da-5e0f-4426-bea0-08d9e4afbc83 X-MS-Exchange-CrossTenant-originalarrivaltime: 31 Jan 2022 11:49:28.0609 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Eg0MHbXRUbhC34ECSqEe+qbDjTEN2Kb4i+M/iL9UFSUdsctihkRTWzOqS8rYLdrCNSIjGilxGTYji48QtMnffMWmD9T5IOugqEKmUKn/PVo= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR04MB5504 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org T24gRnJpLCAyMDIyLTAxLTI4IGF0IDE5OjU5ICswMDAwLCBBZGFtIE1hbnphbmFyZXMgd3JvdGU6 DQo+IE9uIFRodSwgSmFuIDI3LCAyMDIyIGF0IDA3OjE0OjEzQU0gKzAwMDAsIENoYWl0YW55YSBL dWxrYXJuaSB3cm90ZToNCj4gPiANCj4gPiAqIEN1cnJlbnQgc3RhdGUgb2YgdGhlIHdvcmsgOi0N Cj4gPiAtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tDQo+ID4gLS0tLQ0KPiA+IA0KPiA+IFdpdGggWzNdIGJlaW5nIGhhcmQg dG8gaGFuZGxlIGFyYml0cmFyeSBETS9NRCBzdGFja2luZyB3aXRob3V0DQo+ID4gc3BsaXR0aW5n IHRoZSBjb21tYW5kIGluIHR3bywgb25lIGZvciBjb3B5aW5nIElOIGFuZCBvbmUgZm9yDQo+ID4g Y29weWluZw0KPiA+IE9VVC4gV2hpY2ggaXMgdGhlbiBkZW1vbnN0cmF0ZWQgYnkgdGhlIFs0XSB3 aHkgWzNdIGl0IGlzIG5vdCBhDQo+ID4gc3VpdGFibGUNCj4gPiBjYW5kaWRhdGUuIEFsc28sIHdp dGggWzRdIHRoZXJlIGlzIGFuIHVucmVzb2x2ZWQgcHJvYmxlbSB3aXRoIHRoZQ0KPiA+IHR3by1j b21tYW5kIGFwcHJvYWNoIGFib3V0IGhvdyB0byBoYW5kbGUgY2hhbmdlcyB0byB0aGUgRE0gbGF5 b3V0DQo+ID4gYmV0d2VlbiBhbiBJTiBhbmQgT1VUIG9wZXJhdGlvbnMuDQo+ID4gDQo+ID4gV2Ug aGF2ZSBjb25kdWN0ZWQgYSBjYWxsIHdpdGggaW50ZXJlc3RlZCBwZW9wbGUgbGF0ZSBsYXN0IHll YXINCj4gPiBzaW5jZSANCj4gPiBsYWNrIG9mIExTRk1NTSBhbmQgd2Ugd291bGQgbGlrZSB0byBz aGFyZSB0aGUgZGV0YWlscyB3aXRoIGJyb2FkZXINCj4gPiBjb21tdW5pdHkgbWVtYmVycy4NCj4g DQo+IFdhcyBvbiB0aGF0IGNhbGwgYW5kIEkgYW0gaW50ZXJlc3RlZCBpbiBqb2luaW5nIHRoaXMg ZGlzY3Vzc2lvbi4NCg0KU2FtZSBmb3IgbWUgOikNCg0KDQoNCg==