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x-ms-exchange-antispam-messagedata: =?us-ascii?Q?90URRPZGYiU19y87rE5Lz4vVlJmWOVUzMId3jik8f+8xZklfmCyqsaPv7n0K?= =?us-ascii?Q?bVcaev+SdCfxE3LHhIR4XaYfiMRUsHipAZTjO86MqKglQJTS5IAl6DjOWXkm?= =?us-ascii?Q?u0eItNmfK+3GsHLaL/GhSN6arP8UJrlaCfjeUKBW6VedR2xyqoiY2h3r4JZC?= =?us-ascii?Q?beKADVSvORpUTIhKc15NsZqDWWYn/UNYhNaVXxS7MpjAhhtNIkZYOJNMOen4?= =?us-ascii?Q?iTahve3bnZz5yEH9z8keOh4Nidm0O34SCUj2DVZbt3+NqyV6mzcO11qFOphV?= =?us-ascii?Q?QxkM9Xj2wmbZS77feFCT62Tghg6UKJbk4XX9z9x6l5CKeiQYqWyUdbiHNzdc?= =?us-ascii?Q?C9SuY1Gmyd7ApLi9phZaWSJ8KRMpFb7tr8Y4QzlMircgDBAsOCUUd/M8WmYb?= =?us-ascii?Q?4YS9rWIQzTebRBYKgoKsz9ZMVSEc6URLTkB76L4lzMmHWd7klj/nSkka1C8J?= =?us-ascii?Q?GL/2nlvITksuW3VgFnDUUWY8R/9VijJ1Ev7lTO+Am3tF5e5RKyuKAnw9iR5y?= =?us-ascii?Q?9Mx2B3R3M8PjqMKX0PTzT/WcZuQQRCheBHI7uD+JrtlbUjWIsioND6XedoTO?= =?us-ascii?Q?dX7FEtyuAG2LcO/YoKJDn/yfuBfujWE7NC3c+a0euTKYQDz5WeCS/kCorMY/?= =?us-ascii?Q?t7YkeXofhdMVTk3gIOyrGHPlMXiWHlicqMhYeLErJQxIoyvOr+Aziw1ZqEbK?= =?us-ascii?Q?HcsW823uJthA/PAIhk41Nmt9Cg2on2rJV7WKnueOMfHXW3rVBnOmuuY/Ybob?= =?us-ascii?Q?la9C4v9aVTMKFq5PTzvqX/MU20koKNtKlQFNc18/t/k5k0eh1n1Ya3yqAjuD?= =?us-ascii?Q?2iPpVzK6Tksj/NlB7QNt5UuHuObQA4OACrES4w5cVsvWD9DWpI7q6ucUE14d?= =?us-ascii?Q?0YSiHXSqKjqQ55WZSh0VNoMy1edA4vUEI73i+vEeFqLfGQeOKkGb03tHutUx?= =?us-ascii?Q?/muMzsZDEg3l68jaiCwdSpg2ONwysNr+WqOsnF2s3uI=3D?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW3PR11MB4555.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: f04cbdcc-6218-439c-8703-08d89094f101 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Nov 2020 16:21:04.4490 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 9dOnY7tovNo796Iieln+qcKljuBu8YCIbLdOZ1UNdoDLrWNB+iCEWlt8PGeNiVhmn2uToP1q6/GyQTInFuGg+Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1101MB2109 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org > -----Original Message----- > From: Jason Gunthorpe > Sent: Tuesday, November 24, 2020 7:36 AM > To: Daniel Vetter > Cc: Xiong, Jianxin ; Leon Romanovsky ; linux-rdma@vger.kernel.org; dri- > devel@lists.freedesktop.org; Doug Ledford ; Vetter, = Daniel ; Christian Koenig > > Subject: Re: [PATCH rdma-core 3/5] pyverbs: Add dma-buf based MR support >=20 > On Tue, Nov 24, 2020 at 04:16:58PM +0100, Daniel Vetter wrote: >=20 > > Compute is the worst, because opencl is widely considered a mistake > > (maybe opencl 3 is better, but nvidia is stuck on 1.2). The actually > > used stuff is cuda (nvidia-only), rocm (amd-only) and now with intel > > also playing we have xe (intel-only). >=20 > > It's pretty glorious :-/ >=20 > I enjoyed how the Intel version of CUDA is called "OneAPI" not "Third API= " ;) >=20 > Hopefuly xe compute won't leave a lot of half finished abandoned kernel c= ode like Xeon Phi did :( >=20 > > Also I think we discussed this already, but for actual p2p the intel > > patches aren't in upstream yet. We have some internally, but with very > > broken locking (in the process of getting fixed up, but it's taking tim= e). >=20 > Someone needs to say this test works on a real system with an unpatched u= pstream driver. >=20 > I thought AMD had the needed parts merged? Yes, I have tested these with AMD GPU. >=20 > Jason 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 X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98094C2D0E4 for ; Tue, 24 Nov 2020 16:21:17 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1A28F206B7 for ; Tue, 24 Nov 2020 16:21:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=intel.onmicrosoft.com header.i=@intel.onmicrosoft.com header.b="xY6ijk6z" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1A28F206B7 Authentication-Results: mail.kernel.org; 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Tue, 24 Nov 2020 16:21:04 +0000 From: "Xiong, Jianxin" To: Jason Gunthorpe , Daniel Vetter Subject: RE: [PATCH rdma-core 3/5] pyverbs: Add dma-buf based MR support Thread-Topic: [PATCH rdma-core 3/5] pyverbs: Add dma-buf based MR support Thread-Index: AQHWwb+RTBTJqBZYLEWXdlNPeqTq1qnWAtcAgAFjXQCAAAVwAIAAC2nQ Date: Tue, 24 Nov 2020 16:21:04 +0000 Message-ID: References: <1606153984-104583-1-git-send-email-jianxin.xiong@intel.com> <1606153984-104583-4-git-send-email-jianxin.xiong@intel.com> <20201123180504.GA244516@ziepe.ca> <20201124151658.GT401619@phenom.ffwll.local> <20201124153626.GG5487@ziepe.ca> In-Reply-To: <20201124153626.GG5487@ziepe.ca> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-version: 11.5.1.3 dlp-product: dlpe-windows dlp-reaction: no-action authentication-results: ziepe.ca; dkim=none (message not signed) header.d=none;ziepe.ca; dmarc=none action=none header.from=intel.com; x-originating-ip: [73.53.14.45] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f04cbdcc-6218-439c-8703-08d89094f101 x-ms-traffictypediagnostic: MWHPR1101MB2109: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1169; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" > -----Original Message----- > From: Jason Gunthorpe > Sent: Tuesday, November 24, 2020 7:36 AM > To: Daniel Vetter > Cc: Xiong, Jianxin ; Leon Romanovsky ; linux-rdma@vger.kernel.org; dri- > devel@lists.freedesktop.org; Doug Ledford ; Vetter, Daniel ; Christian Koenig > > Subject: Re: [PATCH rdma-core 3/5] pyverbs: Add dma-buf based MR support > > On Tue, Nov 24, 2020 at 04:16:58PM +0100, Daniel Vetter wrote: > > > Compute is the worst, because opencl is widely considered a mistake > > (maybe opencl 3 is better, but nvidia is stuck on 1.2). The actually > > used stuff is cuda (nvidia-only), rocm (amd-only) and now with intel > > also playing we have xe (intel-only). > > > It's pretty glorious :-/ > > I enjoyed how the Intel version of CUDA is called "OneAPI" not "Third API" ;) > > Hopefuly xe compute won't leave a lot of half finished abandoned kernel code like Xeon Phi did :( > > > Also I think we discussed this already, but for actual p2p the intel > > patches aren't in upstream yet. We have some internally, but with very > > broken locking (in the process of getting fixed up, but it's taking time). > > Someone needs to say this test works on a real system with an unpatched upstream driver. > > I thought AMD had the needed parts merged? Yes, I have tested these with AMD GPU. > > Jason _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel