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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 F1627C07E96 for ; Tue, 6 Jul 2021 18:54:30 +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 790C161C24 for ; Tue, 6 Jul 2021 18:54:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 790C161C24 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=amd-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DE4E66E58E; Tue, 6 Jul 2021 18:54:29 +0000 (UTC) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9AD716E570; Tue, 6 Jul 2021 17:31:41 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 80C3868BEB; Tue, 6 Jul 2021 19:31:37 +0200 (CEST) Date: Tue, 6 Jul 2021 19:31:37 +0200 From: Christoph Hellwig To: Jason Gunthorpe Subject: Re: [PATCH v4 0/2] Add p2p via dmabuf to habanalabs Message-ID: <20210706173137.GA7840@lst.de> References: <20210705130314.11519-1-ogabbay@kernel.org> <20210706142357.GN4604@ziepe.ca> <20210706152542.GP4604@ziepe.ca> <20210706172828.GR4604@ziepe.ca> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210706172828.GR4604@ziepe.ca> User-Agent: Mutt/1.5.17 (2007-11-01) X-Mailman-Approved-At: Tue, 06 Jul 2021 18:54:26 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Oded Gabbay , Gal Pressman , sleybo@amazon.com, linux-rdma , Daniel Vetter , Oded Gabbay , "Linux-Kernel@Vger. Kernel. Org" , Maling list - DRI developers , Christian =?iso-8859-1?Q?K=F6nig?= , "moderated list:DMA BUFFER SHARING FRAMEWORK" , Doug Ledford , Christoph Hellwig , amd-gfx list , Greg Kroah-Hartman , Alex Deucher , Dave Airlie , Sumit Semwal , Leon Romanovsky , Linux Media Mailing List Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On Tue, Jul 06, 2021 at 02:28:28PM -0300, Jason Gunthorpe wrote: > > Also on your claim that drivers/gpu is a non-upstream disaster: I've > > also learned that that for drivers/rdma there's the upstream driver, > > and then there's the out-of-tree hackjob the vendor actually > > supports. > > In the enterprise world everyone has their out of tree backport > drivers. It varies on the vendor how much deviation there is from the > upstream driver and what commercial support relationship the vendor > has with the enterprise distros. I think he means the Mellanox OFED stack, which is a complete and utter mess and which gets force fed by Mellanox/Nvidia on unsuspecting customers. I know many big HPC sites that ignore it, but a lot of enterprise customers are dumb enought to deploy it. _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx