Received: by 10.223.185.116 with SMTP id b49csp7992904wrg; Thu, 1 Mar 2018 15:03:00 -0800 (PST) X-Google-Smtp-Source: AG47ELtpAXGIR4QW9/BToxau3SkMywnN1xFZNNj24ZoJDJWnNcxp0O9x+F9ByZJxBso8doTZUmxy X-Received: by 2002:a17:902:7d94:: with SMTP id a20-v6mr3381438plm.184.1519945380436; Thu, 01 Mar 2018 15:03:00 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1519945380; cv=none; d=google.com; s=arc-20160816; b=CwJHBH3pj1UFB2BrtSxdb5koOglBW3FTECG41HDCGpfIB4ds/sqcaQU/kMHa5qvtf6 jLBUsl4Dcoi+RqeyCLBFHktRMeyT7il28LfCRVsGGikFdSKsOSlLggrFpLw2PiqXKmYu GDtV3WdgHTuxGRaPJ9/KjlG6QW0FdLV02S5ymbyvL6fCFelNKGoikJjpaUPUZQAZmI4C SdZSlYGCV27bby9smEHX73EZSwnD21ZDF+bCiuefACqCoDqKCUzsuMfZIapUUJaOofL8 D/VxFKBtCiwwb2RlVbOnU+7TEyBXI7slzh/+eo5zis4NFF1htEj2TDPDx1ruwm5WPmjf thHw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:spamdiagnosticmetadata:spamdiagnosticoutput:user-agent :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature :arc-authentication-results; bh=LBYpmUGrFHmWYRiQc3/I9rhVolYXFdwcFiAixKQJ23Q=; b=tXHixvw5keqPcQMGe1misJvqWLGA/0cqWFbB9x7cqieAyHNJcNfbPoQz46Hd9JnfyR 7eFSWnQ/9xpxiJvq7MW2GcqGgALLqcT3hllvj5+iVkkFplGXYjUtE6OwzeXn4/8jpC6Y shNQqbkyzGgIlIOSYYB97CsoUx/CnfuZLxjkbVGD/hOTNCwVgu19ddQUTAJo+GnK3HKZ urSKEMnEuJCBEV1GA3XWsKMCC6oXnM/a9urOHfQFWojjgevhVqCWXWDSmT8E+gbRN1dm B/slJLz99K4hUAIGlrFDDGQgTyxedyWZ0JEqe2/TyZOZ30oadU5r1NlWdq9ckI9ZznSx i0Vg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@raithlin.onmicrosoft.com header.s=selector1-raithlin-com header.b=hgyFPgQL; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id b6-v6si3651348plx.163.2018.03.01.15.02.45; Thu, 01 Mar 2018 15:03:00 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@raithlin.onmicrosoft.com header.s=selector1-raithlin-com header.b=hgyFPgQL; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162860AbeCAXA5 (ORCPT + 99 others); Thu, 1 Mar 2018 18:00:57 -0500 Received: from mail-eopbgr670093.outbound.protection.outlook.com ([40.107.67.93]:15047 "EHLO CAN01-TO1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1162686AbeCAXAy (ORCPT ); Thu, 1 Mar 2018 18:00:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raithlin.onmicrosoft.com; s=selector1-raithlin-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=LBYpmUGrFHmWYRiQc3/I9rhVolYXFdwcFiAixKQJ23Q=; b=hgyFPgQLO8Xw6ozbu8r0NxFqJh8bFZpWAKkJ90FQ0tlTOF96O7FHFYQiECOch/P6qDMsh0jPR4T0jz/n1x6b00NYI6UfUQS5sTAImll4gwlqYrWycXjgqyLHv8OE2X8P+0bYitp1HpFzTBaoZYAfGJ9bJR7c8iqHCF0wLsRpiNs= Received: from YTXPR0101MB2045.CANPRD01.PROD.OUTLOOK.COM (52.132.39.161) by YTXPR0101MB2174.CANPRD01.PROD.OUTLOOK.COM (52.132.40.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.527.15; Thu, 1 Mar 2018 23:00:51 +0000 Received: from YTXPR0101MB2045.CANPRD01.PROD.OUTLOOK.COM ([fe80::3cd5:8402:cda5:7dff]) by YTXPR0101MB2045.CANPRD01.PROD.OUTLOOK.COM ([fe80::3cd5:8402:cda5:7dff%13]) with mapi id 15.20.0527.022; Thu, 1 Mar 2018 23:00:51 +0000 From: "Stephen Bates" To: Jason Gunthorpe , Logan Gunthorpe CC: Sagi Grimberg , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-rdma@vger.kernel.org" , "linux-nvdimm@lists.01.org" , "linux-block@vger.kernel.org" , Christoph Hellwig , Jens Axboe , Keith Busch , Bjorn Helgaas , Max Gurtovoy , Dan Williams , =?utf-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Benjamin Herrenschmidt , "Alex Williamson" , Steve Wise Subject: Re: [PATCH v2 10/10] nvmet: Optionally use PCI P2P memory Thread-Topic: [PATCH v2 10/10] nvmet: Optionally use PCI P2P memory Thread-Index: AQHTsO2FaiSytyZxbkuik0deJPQRE6O7N/eAgABu34CAAA+TgIAAAe2AgAAMXICAADd+AP//juQA Date: Thu, 1 Mar 2018 23:00:51 +0000 Message-ID: <77591162-4CCD-446E-A27C-1CDB4996ACB7@raithlin.com> References: <20180228234006.21093-1-logang@deltatee.com> <20180228234006.21093-11-logang@deltatee.com> <749e3752-4349-0bdf-5243-3d510c2b26db@grimberg.me> <40d69074-31a8-d06a-ade9-90de7712c553@deltatee.com> <5649098f-b775-815b-8b9a-f34628873ff4@grimberg.me> <20180301184249.GI19007@ziepe.ca> <20180301224540.GL19007@ziepe.ca> In-Reply-To: <20180301224540.GL19007@ziepe.ca> Accept-Language: en-CA, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/10.a.0.180210 authentication-results: spf=none (sender IP is ) smtp.mailfrom=sbates@raithlin.com; x-originating-ip: [70.65.224.121] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;YTXPR0101MB2174;7:d6AAoYhjdYRJfi8weMKRAm14ZjXxS5vW2sIgp5th10OxI1Ig5l0bwwixub9JP2XisEDV37po/uVN2VMq9mGydIAtTVlsPc1J0jvL4hYGyIuW0v0BaJ1v4Udi9YfwNQLjNDWUK5SJNgcBiyb+Ne91FWcl3CAZkXLaoH/8zKYYxhoN3MYCqQPq7n9JEbxdSUlwkMRMquT7EJXJhq4rv8l7RWRkZixczHEmItEZfZascWEkLSyW8hH0a4IEA3cT7mG6 x-ms-exchange-antispam-srfa-diagnostics: SSOS; x-ms-office365-filtering-correlation-id: ef9d28e1-a1fc-4e36-79f3-08d57fc84780 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(7021125)(4534165)(7022125)(4603075)(4627221)(201702281549075)(7048125)(7024125)(7027125)(7028125)(7023125)(5600026)(4604075)(3008032)(2017052603307)(7153060)(7193020);SRVR:YTXPR0101MB2174; x-ms-traffictypediagnostic: YTXPR0101MB2174: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040501)(2401047)(8121501046)(5005006)(3002001)(10201501046)(3231220)(944501232)(93006095)(93001095)(6041288)(20161123560045)(20161123564045)(20161123558120)(20161123562045)(2016111802025)(6072148)(6043046)(201708071742011);SRVR:YTXPR0101MB2174;BCL:0;PCL:0;RULEID:;SRVR:YTXPR0101MB2174; x-forefront-prvs: 05986C03E0 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(376002)(346002)(39380400002)(366004)(396003)(39830400003)(189003)(199004)(2906002)(3280700002)(5250100002)(26005)(186003)(478600001)(6506007)(36756003)(102836004)(6486002)(2900100001)(2950100002)(53936002)(68736007)(97736004)(6246003)(6436002)(6512007)(76176011)(66066001)(14454004)(33656002)(3660700001)(99286004)(3846002)(305945005)(7736002)(5660300001)(7416002)(6116002)(4326008)(86362001)(58126008)(25786009)(54906003)(110136005)(83716003)(81166006)(229853002)(81156014)(93886005)(82746002)(106356001)(105586002)(8936002)(8676002)(316002);DIR:OUT;SFP:1102;SCL:1;SRVR:YTXPR0101MB2174;H:YTXPR0101MB2045.CANPRD01.PROD.OUTLOOK.COM;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:1;LANG:en; received-spf: None (protection.outlook.com: raithlin.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: ha+DeyNo5MUMyRap5JTzhpEMtbyifRhWiF91xT4tPjd6kFAvSiiYj7NHmF54rmwQSP6kod9XYwlF3e2aOobfCLhKB3x5uOAIcdi5UQc4RkJTOaliVw/vym9WNWCMbtvDX8mEoGe4qKtuIr43RfqTRwGb3Jmn433Pi8vJi8s1DMg= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: raithlin.com X-MS-Exchange-CrossTenant-Network-Message-Id: ef9d28e1-a1fc-4e36-79f3-08d57fc84780 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Mar 2018 23:00:51.1488 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 18519031-7ff4-4cbb-bbcb-c3252d330f4b X-MS-Exchange-Transport-CrossTenantHeadersStamped: YTXPR0101MB2174 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pj4gV2UnZCBwcmVmZXIgdG8gaGF2ZSBhIGdlbmVyaWMgd2F5IHRvIGdldCBwMnBtZW0gaW5zdGVh ZCBvZiByZXN0cmljdGluZw0KPj4gb3Vyc2VsdmVzIHRvIG9ubHkgdXNpbmcgQ01Ccy4gV2UgZGlk IHdvcmsgaW4gdGhlIHBhc3Qgd2hlcmUgdGhlIFAyUCBtZW1vcnkNCiA+PiB3YXMgcGFydCBvZiBh biBJQiBhZGFwdGVyIGFuZCBub3QgdGhlIE5WTWUgY2FyZC4gU28gdGhpcyB3b24ndCB3b3JrIGlm IGl0J3MNCiAgPj4gYW4gTlZNZSBvbmx5IGludGVyZmFjZS4NCiAgICANCiA+IEl0IGp1c3Qgc2Vl bXMgbGlrZSBpdCBpdCBtYWtpbmcgaXQgdG9vIGNvbXBsaWNhdGVkLg0KDQpJIGRpc2FncmVlLiBI YXZpbmcgYSBjb21tb24gYWxsb2NhdG9yIChpbnN0ZWFkIG9mIHNvbWUgc2VwYXJhdGUgYWxsb2Nh dG9yIHBlciBkcml2ZXIpIG1ha2VzIHRoaW5ncyBzaW1wbGVyLg0KDQo+IFNlZW1zIGxpa2UgYSB2 ZXJ5IHN1YnRsZSBhbmQgaGFyZCB0byBkZWJ1ZyBwZXJmb3JtYW5jZSB0cmFwIHRvIGxlYXZlDQo+ IGZvciB0aGUgdXNlcnMsIGFuZCBwcmV0dHkgbXVjaCB0aGUgb25seSByZWFzb24gdG8gdXNlIFAy UCBpcw0KPiBwZXJmb3JtYW5jZS4uLiBTbyB3aHkgaGF2ZSBzdWNoIGEgZGFuZ2Vyb3VzIGludGVy ZmFjZT8NCg0KUDJQIGlzIGFib3V0IG9mZmxvYWRpbmcgdGhlIG1lbW9yeSBhbmQgUENJIHN1YnN5 c3RlbSBvZiB0aGUgaG9zdCBDUFUgYW5kIHRoaXMgaXMgYWNoaWV2ZWQgbm8gbWF0dGVyIHdoaWNo IHAycF9kZXYgaXMgdXNlZC4NCg0KU3RlcGhlbg0KICAgIA0KDQo=