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 A9A94C55179 for ; Thu, 5 Nov 2020 17:43:13 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 EA25F20709 for ; Thu, 5 Nov 2020 17:43:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA25F20709 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 3C8E1865D6; Thu, 5 Nov 2020 17:43:12 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HFGj8em974Bx; Thu, 5 Nov 2020 17:43:11 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 8E7E1865D3; Thu, 5 Nov 2020 17:43:11 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 75EF9C088B; Thu, 5 Nov 2020 17:43:11 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 674DCC0889 for ; Thu, 5 Nov 2020 17:43:10 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 62F48870F7 for ; Thu, 5 Nov 2020 17:43:10 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8g8F4gwrFo9W for ; Thu, 5 Nov 2020 17:43:10 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by hemlock.osuosl.org (Postfix) with ESMTPS id ED6F8870E4 for ; Thu, 5 Nov 2020 17:43:09 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id A1A3E68B02; Thu, 5 Nov 2020 18:43:06 +0100 (CET) Date: Thu, 5 Nov 2020 18:43:06 +0100 From: Christoph Hellwig To: Jason Gunthorpe Subject: Re: [PATCH 4/6] PCI/P2PDMA: Remove the DMA_VIRT_OPS hacks Message-ID: <20201105174306.GA10757@lst.de> References: <20201105074205.1690638-1-hch@lst.de> <20201105074205.1690638-5-hch@lst.de> <20201105143418.GA4142106@ziepe.ca> <20201105170816.GC7502@lst.de> <20201105172357.GE36674@ziepe.ca> <20201105172921.GA9537@lst.de> <20201105173930.GF36674@ziepe.ca> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201105173930.GF36674@ziepe.ca> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Zhu Yanjun , Dennis Dalessandro , linux-rdma@vger.kernel.org, linux-pci@vger.kernel.org, Mike Marciniszyn , iommu@lists.linux-foundation.org, Bjorn Helgaas , Bernard Metzler , Logan Gunthorpe , Christoph Hellwig 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Thu, Nov 05, 2020 at 01:39:30PM -0400, Jason Gunthorpe wrote: > Hmm. This works for real devices like mlx5, but it means the three SW > devices will also resolve to a real PCI device that is not the DMA > device. Does it? When I followed the links on my system rxe was a virtual device without a physical parent. Weird. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu