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 E6F9BC433FE for ; Fri, 28 Jan 2022 09:13:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240703AbiA1JNO (ORCPT ); Fri, 28 Jan 2022 04:13:14 -0500 Received: from mail-dm6nam12on2088.outbound.protection.outlook.com ([40.107.243.88]:41024 "EHLO NAM12-DM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234281AbiA1JNN (ORCPT ); Fri, 28 Jan 2022 04:13:13 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=NbGBIp3cIrkbLiSjtFvGUqtcUGsE+KFemZWyVsogzGOhBaMqS1szRiR7uWCUbIFCEqTGxz+dLt9Dq+wvEdlzkzWb7nHA/dwVxrWQlQy6H+OUkWs71fk6f6jXKJKAmt2ZUGfC3BIP1NfywfxsvSH1g2PFEya2e7XFv58s8eHq6WewIcss/p853WRLOwmsWWfPZXMb/GrbPlj1hFIEeyodrU3Z/4JAvMMXddHKQjYSGzF3cvFiFnr5kgeS6OCsItDcZe9pL4FdagxH+m/TOuvlMrYTAJ9j63AZyVBjqV/IWXJ7C1ZwpevNiurmh2CMHwgoY2fzCl+d5auQTHnHREHm0A== 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=hDDGO9l+GHDDD7OjVPtfLIcoHpug1HFQU/Kz2QCg7/A=; b=V7oK/nyAdrBjJ9UVE+JWq3UP56wI0FE+hZC0o8/Bgv7fCAB2bCqhkL34R3oCg8ZA4l3r7IiAgyXyl63Q83J1STfrZtJKcTIFq9ZlgoJWNohn0jtn2SoVcNUZaK9N/9vIKK+FIpZUlhWmOcjchK6Lk/dtFG5561FFkgpnK9sshn1mdqamQnZ6PyBORVDSCDQf4r8tvL5g0U1vibP36LDxcYDOocDolNR9XBaNXi8gc5rvpTaHDMYkub4I5LldLoemD86H5gok5JWHu+KhcJ56Pw7Q+T6ALfpL22PdgKrqCfYWIo+RZ7IzfTGpEl49wMuQpBY95I4dX8v79V9cAUCDEg== 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=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=hDDGO9l+GHDDD7OjVPtfLIcoHpug1HFQU/Kz2QCg7/A=; b=bOmE/QbpQ8DU71VOD3WQ5Ja0ag3EqbsjK6dawh7SlztdwmmbMXAKgJnrgT+YfMXKkf2b2CVsl47edB6w9hCW+goQgQ9MtYoQfswvb0oLxPW7t3q78eR09vU8XVz63Af33/XKNfYWapNDAWHxSGFkWiC5d7ROL97YnnNCRIZSlg78gTnz2NEK/pUX6uCslt7vBcPZDC/qBndLWRQZp9S9GkX7TT9nynl7uoRnQSVeY2UMVqRdhQTR57kXDTQ24tOeDYb03CE+yh8khW0lw2OlEt4ujjIglSKDRBtD4GJqhBggVMJ/x/vZI3MguUbfhFo8VooecRcFoKHd+DG5IOu6Hg== Received: from MW2PR12MB4667.namprd12.prod.outlook.com (2603:10b6:302:12::28) by BYAPR12MB2631.namprd12.prod.outlook.com (2603:10b6:a03:6b::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4930.15; Fri, 28 Jan 2022 09:13:11 +0000 Received: from MW2PR12MB4667.namprd12.prod.outlook.com ([fe80::846c:d3cd:5a30:c35]) by MW2PR12MB4667.namprd12.prod.outlook.com ([fe80::846c:d3cd:5a30:c35%4]) with mapi id 15.20.4930.018; Fri, 28 Jan 2022 09:13:11 +0000 From: Chaitanya Kulkarni To: Logan Gunthorpe CC: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "iommu@lists.linux-foundation.org" , "linux-nvme@lists.infradead.org" , "linux-block@vger.kernel.org" , "linux-pci@vger.kernel.org" Subject: Re: [PATCH v5 12/24] nvme-pci: convert to using dma_map_sgtable() Thread-Topic: [PATCH v5 12/24] nvme-pci: convert to using dma_map_sgtable() Thread-Index: AQHYE93DRXAPGacM40q8QY5Zypteeax4Js4A Date: Fri, 28 Jan 2022 09:13:11 +0000 Message-ID: <8ea7b917-e8b9-2bed-40bf-276c8a0b1f2c@nvidia.com> References: <20220128002614.6136-1-logang@deltatee.com> <20220128002614.6136-13-logang@deltatee.com> In-Reply-To: <20220128002614.6136-13-logang@deltatee.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 9a97b3ac-8f71-4d97-c878-08d9e23e6828 x-ms-traffictypediagnostic: BYAPR12MB2631:EE_ x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5516; 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:MW2PR12MB4667.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(4636009)(366004)(66946007)(76116006)(4744005)(2616005)(6512007)(6486002)(53546011)(5660300002)(91956017)(71200400001)(508600001)(6506007)(66556008)(36756003)(2906002)(31686004)(38100700002)(186003)(122000001)(6916009)(54906003)(38070700005)(316002)(26005)(66446008)(66476007)(83380400001)(8676002)(64756008)(8936002)(4326008)(86362001)(31696002)(45980500001)(43740500002)(20210929001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?UEo5RmxWbUxsbmgrcHdvNVlnZFZNMm5yM1pxamtuWWR1TldIejEwU0NIZ2RI?= =?utf-8?B?VXAyQmptV2loK0NpaGNieUhiTEFFd1BCZE9RaDg1b2lISmtUdTJzS2l6cXky?= =?utf-8?B?dWN6MlFNM21raVc5MExkeVNkNkxad3dVdzdKdGZwV0pWYVFvTVUrL0VTK3BV?= =?utf-8?B?ek5HNldVVk9IRGVXN1A3R0ZwWmg3c2gvZXZSMnk2eVI2M2FXWlN1dmlhWm9h?= =?utf-8?B?a0Y4cnVsZk9VR25mUnlEREFBRVdBNm1qbDQ0NHU0aGtPbEhWR0RFTVVVNkMv?= =?utf-8?B?WWFYcUNnMlViVHI2TlRQWVc4RE1lV2lTOWJDOGtjQzRhZzZYVnc4U1l4VDZx?= =?utf-8?B?ZlZwT1hGVkpUWlArS2V6R1dobDcvNEo5ZmJkWHlaT0EvcE00S3lERlNvSjZu?= =?utf-8?B?dS80K3laY2N1YThXS01uV0F5a1FTNGk1SjhBUTJqNVJpcjFKaDFoSnQraUk5?= =?utf-8?B?VmNyMUpQSGhvd293NmJRc3lZRmNRdGZ0NTdKeEVqWmozeFpUMEhtVUFKM3F2?= =?utf-8?B?alJXYndsRFN6VmNYTkpoQzZzZStXVHdSYU00OXNYWUVzbE9FZEJXVTRIS1U5?= =?utf-8?B?ejF5UUY5MExXWkUycnphZnBtRVNhYmxicjBoMy9EcnhpNDNvaFF6QjUrNFZY?= =?utf-8?B?T0hOWjl3cFVXYXZhbkpUemNyaWoxbldzZEE4cmQ4T1BRM2lxNkNHa3BRemdC?= =?utf-8?B?cU5JRHQxWHBXVnc3Q09QOWQxNkV5dXV0UnNheXVVVzh1c2p5S0QyYnJmTENy?= =?utf-8?B?Qkl1NTJIWk1DMVl0cVBlK3JLaUFLdjR5amtSMUVNNFB1QWpOMWpPSVJOd3Ns?= =?utf-8?B?T041VW16U2h6MzF1QnArMHIrVDJid2JKZFJ6N0RZV2ZEVUlWMFRHQVRMOUdN?= =?utf-8?B?RnZ4WXROQndSZnJaVlE3bytXV0tmeGZiQVFEWDFxRlFuaFNUd2xFdkpDUCty?= =?utf-8?B?L2pUdWQ1ckJ0NkExdEg3Smlxc2VmVUY5V0RrdnhIVjkyWkNQZ3FGTkVFaDR3?= =?utf-8?B?a3pBazE0bXgxdnRJczB0NTBXWm5EeUlmaFFLaExvb1k0RWdoVHp3bVdkbitS?= =?utf-8?B?Z3kxN2RPa3VSUmhSTUl4cEc1R01EYVBFQlBBSVBOVmRTYzBXOHU5dWVTOGhw?= =?utf-8?B?TzFrYXcxbXBtTTlTTnlhV0JRclorVk5GbzJGQU5kRVZ0cGhUSU10K0tVRHdE?= =?utf-8?B?NEV1Z3ZSUXR1T0t5SzllUXJqcGRNVWlYaXFBWCt3TDlTaFVjbDVIVjFXWHlL?= =?utf-8?B?OFppOHpWQXlQQjNOTkVCT0xiVkViczFGZkVjdDgrNEx0aHgwcmxFcVAyeE5B?= =?utf-8?B?Tks4MHpzKzFWSVM2VXVUMXRKYnVVQjhLRVVoNm9nUlN5dUt6K0hZMWgrZThl?= =?utf-8?B?K2RsRFIza01pZWNCWEk3V3VsUVVaekhDMC9jL2lOUjRneTZGbTVhMTQwdU5t?= =?utf-8?B?MWN6QTNOc1pkbGt4MUdYOUZlR3hVYmJ6QmVtQ3hhcmd5U2RkUE1aM0xVNjF0?= =?utf-8?B?SFlLaWI0QVJZNFEvcGRselZQZnpoalZxSUYzbk1MOS9MRVpXaTkwNEFBcW1N?= =?utf-8?B?blAyOTJCaXFNUGFQbG5Pb2NpVHRUdlBEeFdDTzQ2NnpQS0ZlRW5Va241Y1VN?= =?utf-8?B?d0R6S0M2MUQrMkhENUpIUjZDS0pMNjkxOTUwTFA2R2hiZ0tqamdEalZRVVpv?= =?utf-8?B?VWZHQ2pqWmRzTGJJTm84L3RXY0lkeWN4UnZDSkhnOUs3UUhwenNML09nMFJO?= =?utf-8?B?MVFiaXNvU093NjlHWHAvN3o1N0srVFJWNDd0OUVQTThteVBTRkJhL2lDVWhj?= =?utf-8?B?Mk1QWllIZHB5aGtrRkMyUnZ6QVVWTkdjbVRRRG9zNVJwbVNSekw2cHd1aU5F?= =?utf-8?B?b1p6Y28xSEF4ZGVYZjhPYyswcDV3MzFBcGhJRXpncDVtYmY1SStvVW1PWnQ5?= =?utf-8?B?Z2NVbUt6YVZhZGxvZEptRXJWZnBTMWZDeWVZYUFqZzIwbC82eUxNT2hBSkFP?= =?utf-8?B?K2JKbTRsd3ZxeHppdFZXOUlIb1IwUGZrTzB0a1FwblhPWk5SZHV4bUFqUkR0?= =?utf-8?B?eGNUYm5XRGgvK09SRG9GMDZHQjJFeEw1YStJcVRTNlpmSURLZWx1R2s1MXBj?= =?utf-8?B?dVZnUThRdGVCSVk1b2s5a3Viajl2UmVpaWQrQlhxdGQwYUlHSW1xMHZDTkNI?= =?utf-8?B?bEE9PQ==?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW2PR12MB4667.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9a97b3ac-8f71-4d97-c878-08d9e23e6828 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jan 2022 09:13:11.1738 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: f0hTNwwnRDK0aLpuKmNMZtks21K5zltKtcQ8BI6+1cvTfGCzGeUCHuz/1iRddoNVuaxb/ByY36lRTW2WV7pLTw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB2631 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org T24gMS8yNy8yMiA0OjI2IFBNLCBMb2dhbiBHdW50aG9ycGUgd3JvdGU6DQo+IEV4dGVybmFsIGVt YWlsOiBVc2UgY2F1dGlvbiBvcGVuaW5nIGxpbmtzIG9yIGF0dGFjaG1lbnRzDQo+IA0KPiANCj4g VGhlIGRtYV9tYXAgb3BlcmF0aW9ucyBub3cgc3VwcG9ydCBQMlBETUEgcGFnZXMgZGlyZWN0bHku IFNvIHJlbW92ZQ0KPiB0aGUgY2FsbHMgdG8gcGNpX3AycGRtYV9bdW5dbWFwX3NnX2F0dHJzKCkg YW5kIHJlcGxhY2UgdGhlbSB3aXRoIGNhbGxzDQo+IHRvIGRtYV9tYXBfc2d0YWJsZSgpLg0KPiAN Cj4gZG1hX21hcF9zZ3RhYmxlKCkgcmV0dXJucyBtb3JlIGNvbXBsZXRlIGVycm9yIGNvZGVzIHRo YW4gZG1hX21hcF9zZygpDQo+IGFuZCBhbGxvd3MgZGlmZmVyZW50aWF0aW5nIEVSRU1PVEVJTyBl cnJvcnMgaW4gY2FzZSBhbiB1bnN1cHBvcnRlZA0KPiBQMlBETUEgdHJhbnNmZXIgaXMgcmVxdWVz dGVkLiBXaGVuIHRoaXMgaGFwcGVucywgcmV0dXJuIEJMS19TVFNfVEFSR0VUDQo+IHNvIHRoZSBy ZXF1ZXN0IGlzbid0IHJldHJpZWQuDQo+IA0KPiBTaWduZWQtb2ZmLWJ5OiBMb2dhbiBHdW50aG9y cGUgPGxvZ2FuZ0BkZWx0YXRlZS5jb20+DQo+IFJldmlld2VkLWJ5OiBNYXggR3VydG92b3kgPG1n dXJ0b3ZveUBudmlkaWEuY29tPg0KPiAtLS0NCg0KTG9va3MgZ29vZC4NCg0KUmV2aWV3ZWQtYnk6 IENoYWl0YW55YSBLdWxrYXJuaSA8a2NoQG52aWRpYS5jb20+DQoNCg== 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 smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9E539C43217 for ; Fri, 28 Jan 2022 09:13:17 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 3626D60597; Fri, 28 Jan 2022 09:13:17 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AwyWVFU2ltmt; Fri, 28 Jan 2022 09:13:16 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp3.osuosl.org (Postfix) with ESMTPS id 0EB36600D1; Fri, 28 Jan 2022 09:13:16 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id D42E0C001A; Fri, 28 Jan 2022 09:13:15 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) by lists.linuxfoundation.org (Postfix) with ESMTP id E9349C000B for ; Fri, 28 Jan 2022 09:13:14 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id D5BB4813FB for ; Fri, 28 Jan 2022 09:13:14 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp1.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=nvidia.com Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2ztC9nPfpnHK for ; Fri, 28 Jan 2022 09:13:13 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.8.0 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2084.outbound.protection.outlook.com [40.107.223.84]) by smtp1.osuosl.org (Postfix) with ESMTPS id 6C605813AF for ; Fri, 28 Jan 2022 09:13:13 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=NbGBIp3cIrkbLiSjtFvGUqtcUGsE+KFemZWyVsogzGOhBaMqS1szRiR7uWCUbIFCEqTGxz+dLt9Dq+wvEdlzkzWb7nHA/dwVxrWQlQy6H+OUkWs71fk6f6jXKJKAmt2ZUGfC3BIP1NfywfxsvSH1g2PFEya2e7XFv58s8eHq6WewIcss/p853WRLOwmsWWfPZXMb/GrbPlj1hFIEeyodrU3Z/4JAvMMXddHKQjYSGzF3cvFiFnr5kgeS6OCsItDcZe9pL4FdagxH+m/TOuvlMrYTAJ9j63AZyVBjqV/IWXJ7C1ZwpevNiurmh2CMHwgoY2fzCl+d5auQTHnHREHm0A== 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=hDDGO9l+GHDDD7OjVPtfLIcoHpug1HFQU/Kz2QCg7/A=; b=V7oK/nyAdrBjJ9UVE+JWq3UP56wI0FE+hZC0o8/Bgv7fCAB2bCqhkL34R3oCg8ZA4l3r7IiAgyXyl63Q83J1STfrZtJKcTIFq9ZlgoJWNohn0jtn2SoVcNUZaK9N/9vIKK+FIpZUlhWmOcjchK6Lk/dtFG5561FFkgpnK9sshn1mdqamQnZ6PyBORVDSCDQf4r8tvL5g0U1vibP36LDxcYDOocDolNR9XBaNXi8gc5rvpTaHDMYkub4I5LldLoemD86H5gok5JWHu+KhcJ56Pw7Q+T6ALfpL22PdgKrqCfYWIo+RZ7IzfTGpEl49wMuQpBY95I4dX8v79V9cAUCDEg== 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=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=hDDGO9l+GHDDD7OjVPtfLIcoHpug1HFQU/Kz2QCg7/A=; b=bOmE/QbpQ8DU71VOD3WQ5Ja0ag3EqbsjK6dawh7SlztdwmmbMXAKgJnrgT+YfMXKkf2b2CVsl47edB6w9hCW+goQgQ9MtYoQfswvb0oLxPW7t3q78eR09vU8XVz63Af33/XKNfYWapNDAWHxSGFkWiC5d7ROL97YnnNCRIZSlg78gTnz2NEK/pUX6uCslt7vBcPZDC/qBndLWRQZp9S9GkX7TT9nynl7uoRnQSVeY2UMVqRdhQTR57kXDTQ24tOeDYb03CE+yh8khW0lw2OlEt4ujjIglSKDRBtD4GJqhBggVMJ/x/vZI3MguUbfhFo8VooecRcFoKHd+DG5IOu6Hg== Received: from MW2PR12MB4667.namprd12.prod.outlook.com (2603:10b6:302:12::28) by BYAPR12MB2631.namprd12.prod.outlook.com (2603:10b6:a03:6b::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4930.15; Fri, 28 Jan 2022 09:13:11 +0000 Received: from MW2PR12MB4667.namprd12.prod.outlook.com ([fe80::846c:d3cd:5a30:c35]) by MW2PR12MB4667.namprd12.prod.outlook.com ([fe80::846c:d3cd:5a30:c35%4]) with mapi id 15.20.4930.018; Fri, 28 Jan 2022 09:13:11 +0000 To: Logan Gunthorpe Subject: Re: [PATCH v5 12/24] nvme-pci: convert to using dma_map_sgtable() Thread-Topic: [PATCH v5 12/24] nvme-pci: convert to using dma_map_sgtable() Thread-Index: AQHYE93DRXAPGacM40q8QY5Zypteeax4Js4A Date: Fri, 28 Jan 2022 09:13:11 +0000 Message-ID: <8ea7b917-e8b9-2bed-40bf-276c8a0b1f2c@nvidia.com> References: <20220128002614.6136-1-logang@deltatee.com> <20220128002614.6136-13-logang@deltatee.com> In-Reply-To: <20220128002614.6136-13-logang@deltatee.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 9a97b3ac-8f71-4d97-c878-08d9e23e6828 x-ms-traffictypediagnostic: BYAPR12MB2631:EE_ x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5516; 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:MW2PR12MB4667.namprd12.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(4636009)(366004)(66946007)(76116006)(4744005)(2616005)(6512007)(6486002)(53546011)(5660300002)(91956017)(71200400001)(508600001)(6506007)(66556008)(36756003)(2906002)(31686004)(38100700002)(186003)(122000001)(6916009)(54906003)(38070700005)(316002)(26005)(66446008)(66476007)(83380400001)(8676002)(64756008)(8936002)(4326008)(86362001)(31696002)(45980500001)(43740500002)(20210929001); DIR:OUT; SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?UEo5RmxWbUxsbmgrcHdvNVlnZFZNMm5yM1pxamtuWWR1TldIejEwU0NIZ2RI?= =?utf-8?B?VXAyQmptV2loK0NpaGNieUhiTEFFd1BCZE9RaDg1b2lISmtUdTJzS2l6cXky?= =?utf-8?B?dWN6MlFNM21raVc5MExkeVNkNkxad3dVdzdKdGZwV0pWYVFvTVUrL0VTK3BV?= =?utf-8?B?ek5HNldVVk9IRGVXN1A3R0ZwWmg3c2gvZXZSMnk2eVI2M2FXWlN1dmlhWm9h?= =?utf-8?B?a0Y4cnVsZk9VR25mUnlEREFBRVdBNm1qbDQ0NHU0aGtPbEhWR0RFTVVVNkMv?= =?utf-8?B?WWFYcUNnMlViVHI2TlRQWVc4RE1lV2lTOWJDOGtjQzRhZzZYVnc4U1l4VDZx?= =?utf-8?B?ZlZwT1hGVkpUWlArS2V6R1dobDcvNEo5ZmJkWHlaT0EvcE00S3lERlNvSjZu?= =?utf-8?B?dS80K3laY2N1YThXS01uV0F5a1FTNGk1SjhBUTJqNVJpcjFKaDFoSnQraUk5?= =?utf-8?B?VmNyMUpQSGhvd293NmJRc3lZRmNRdGZ0NTdKeEVqWmozeFpUMEhtVUFKM3F2?= =?utf-8?B?alJXYndsRFN6VmNYTkpoQzZzZStXVHdSYU00OXNYWUVzbE9FZEJXVTRIS1U5?= =?utf-8?B?ejF5UUY5MExXWkUycnphZnBtRVNhYmxicjBoMy9EcnhpNDNvaFF6QjUrNFZY?= =?utf-8?B?T0hOWjl3cFVXYXZhbkpUemNyaWoxbldzZEE4cmQ4T1BRM2lxNkNHa3BRemdC?= =?utf-8?B?cU5JRHQxWHBXVnc3Q09QOWQxNkV5dXV0UnNheXVVVzh1c2p5S0QyYnJmTENy?= =?utf-8?B?Qkl1NTJIWk1DMVl0cVBlK3JLaUFLdjR5amtSMUVNNFB1QWpOMWpPSVJOd3Ns?= =?utf-8?B?T041VW16U2h6MzF1QnArMHIrVDJid2JKZFJ6N0RZV2ZEVUlWMFRHQVRMOUdN?= =?utf-8?B?RnZ4WXROQndSZnJaVlE3bytXV0tmeGZiQVFEWDFxRlFuaFNUd2xFdkpDUCty?= =?utf-8?B?L2pUdWQ1ckJ0NkExdEg3Smlxc2VmVUY5V0RrdnhIVjkyWkNQZ3FGTkVFaDR3?= =?utf-8?B?a3pBazE0bXgxdnRJczB0NTBXWm5EeUlmaFFLaExvb1k0RWdoVHp3bVdkbitS?= =?utf-8?B?Z3kxN2RPa3VSUmhSTUl4cEc1R01EYVBFQlBBSVBOVmRTYzBXOHU5dWVTOGhw?= =?utf-8?B?TzFrYXcxbXBtTTlTTnlhV0JRclorVk5GbzJGQU5kRVZ0cGhUSU10K0tVRHdE?= =?utf-8?B?NEV1Z3ZSUXR1T0t5SzllUXJqcGRNVWlYaXFBWCt3TDlTaFVjbDVIVjFXWHlL?= =?utf-8?B?OFppOHpWQXlQQjNOTkVCT0xiVkViczFGZkVjdDgrNEx0aHgwcmxFcVAyeE5B?= =?utf-8?B?Tks4MHpzKzFWSVM2VXVUMXRKYnVVQjhLRVVoNm9nUlN5dUt6K0hZMWgrZThl?= =?utf-8?B?K2RsRFIza01pZWNCWEk3V3VsUVVaekhDMC9jL2lOUjRneTZGbTVhMTQwdU5t?= =?utf-8?B?MWN6QTNOc1pkbGt4MUdYOUZlR3hVYmJ6QmVtQ3hhcmd5U2RkUE1aM0xVNjF0?= =?utf-8?B?SFlLaWI0QVJZNFEvcGRselZQZnpoalZxSUYzbk1MOS9MRVpXaTkwNEFBcW1N?= =?utf-8?B?blAyOTJCaXFNUGFQbG5Pb2NpVHRUdlBEeFdDTzQ2NnpQS0ZlRW5Va241Y1VN?= =?utf-8?B?d0R6S0M2MUQrMkhENUpIUjZDS0pMNjkxOTUwTFA2R2hiZ0tqamdEalZRVVpv?= =?utf-8?B?VWZHQ2pqWmRzTGJJTm84L3RXY0lkeWN4UnZDSkhnOUs3UUhwenNML09nMFJO?= =?utf-8?B?MVFiaXNvU093NjlHWHAvN3o1N0srVFJWNDd0OUVQTThteVBTRkJhL2lDVWhj?= =?utf-8?B?Mk1QWllIZHB5aGtrRkMyUnZ6QVVWTkdjbVRRRG9zNVJwbVNSekw2cHd1aU5F?= =?utf-8?B?b1p6Y28xSEF4ZGVYZjhPYyswcDV3MzFBcGhJRXpncDVtYmY1SStvVW1PWnQ5?= =?utf-8?B?Z2NVbUt6YVZhZGxvZEptRXJWZnBTMWZDeWVZYUFqZzIwbC82eUxNT2hBSkFP?= =?utf-8?B?K2JKbTRsd3ZxeHppdFZXOUlIb1IwUGZrTzB0a1FwblhPWk5SZHV4bUFqUkR0?= =?utf-8?B?eGNUYm5XRGgvK09SRG9GMDZHQjJFeEw1YStJcVRTNlpmSURLZWx1R2s1MXBj?= =?utf-8?B?dVZnUThRdGVCSVk1b2s5a3Viajl2UmVpaWQrQlhxdGQwYUlHSW1xMHZDTkNI?= =?utf-8?B?bEE9PQ==?= Content-ID: MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW2PR12MB4667.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9a97b3ac-8f71-4d97-c878-08d9e23e6828 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jan 2022 09:13:11.1738 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: f0hTNwwnRDK0aLpuKmNMZtks21K5zltKtcQ8BI6+1cvTfGCzGeUCHuz/1iRddoNVuaxb/ByY36lRTW2WV7pLTw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB2631 Cc: "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-block@vger.kernel.org" , "linux-mm@kvack.org" , "iommu@lists.linux-foundation.org" X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Chaitanya Kulkarni via iommu Reply-To: Chaitanya Kulkarni Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On 1/27/22 4:26 PM, Logan Gunthorpe wrote: > External email: Use caution opening links or attachments > > > The dma_map operations now support P2PDMA pages directly. So remove > the calls to pci_p2pdma_[un]map_sg_attrs() and replace them with calls > to dma_map_sgtable(). > > dma_map_sgtable() returns more complete error codes than dma_map_sg() > and allows differentiating EREMOTEIO errors in case an unsupported > P2PDMA transfer is requested. When this happens, return BLK_STS_TARGET > so the request isn't retried. > > Signed-off-by: Logan Gunthorpe > Reviewed-by: Max Gurtovoy > --- Looks good. Reviewed-by: Chaitanya Kulkarni _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu