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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 63655FC6172 for ; Thu, 13 Sep 2018 17:35:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 694082156D for ; Thu, 13 Sep 2018 16:14:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 694082156D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=deltatee.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728161AbeIMVYr (ORCPT ); Thu, 13 Sep 2018 17:24:47 -0400 Received: from ale.deltatee.com ([207.54.116.67]:44252 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727383AbeIMVYr (ORCPT ); Thu, 13 Sep 2018 17:24:47 -0400 Received: from guinness.priv.deltatee.com ([172.16.1.162]) by ale.deltatee.com with esmtp (Exim 4.89) (envelope-from ) id 1g0UFv-0001GJ-AI; Thu, 13 Sep 2018 10:14:11 -0600 To: Jens Axboe , 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 Cc: Stephen Bates , Christoph Hellwig , Keith Busch , Sagi Grimberg , Bjorn Helgaas , Jason Gunthorpe , Max Gurtovoy , Dan Williams , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Benjamin Herrenschmidt , Alex Williamson , =?UTF-8?Q?Christian_K=c3=b6nig?= References: <20180913001156.4115-1-logang@deltatee.com> <20180913001156.4115-8-logang@deltatee.com> <0118d3d8-a2f5-047f-6627-04ac3d0371ad@kernel.dk> From: Logan Gunthorpe Message-ID: <5998a8c3-697e-82ac-91d4-a648455a21e9@deltatee.com> Date: Thu, 13 Sep 2018 10:14:02 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <0118d3d8-a2f5-047f-6627-04ac3d0371ad@kernel.dk> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 172.16.1.162 X-SA-Exim-Rcpt-To: christian.koenig@amd.com, alex.williamson@redhat.com, benh@kernel.crashing.org, jglisse@redhat.com, dan.j.williams@intel.com, maxg@mellanox.com, jgg@mellanox.com, bhelgaas@google.com, sagi@grimberg.me, keith.busch@intel.com, hch@lst.de, sbates@raithlin.com, linux-block@vger.kernel.org, linux-nvdimm@lists.01.org, linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, axboe@kernel.dk X-SA-Exim-Mail-From: logang@deltatee.com Subject: Re: [PATCH v6 07/13] block: Add PCI P2P flag for request queue and check support for requests X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/09/18 06:28 PM, Jens Axboe wrote: > On 9/12/18 6:11 PM, Logan Gunthorpe wrote: >> QUEUE_FLAG_PCI_P2P is introduced meaning a driver's request queue >> supports targeting P2P memory. >> >> When a request is submitted we check if PCI P2PDMA memory is assigned >> to the first page in the bio. If it is, we ensure the queue it's >> submitted to supports it, and enforce REQ_NOMERGE. > > This changelog is no longer accurate. Oops, I'll fix this for v7. Thanks, Logan