From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x229.google.com (mail-oi0-x229.google.com [IPv6:2607:f8b0:4003:c06::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id ADD3620956077 for ; Wed, 14 Mar 2018 21:24:19 -0700 (PDT) Received: by mail-oi0-x229.google.com with SMTP id f186so4633421oig.4 for ; Wed, 14 Mar 2018 21:30:43 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: <3ea80992-a0fc-08f2-d93d-ae0ec4e3f4ce@codeaurora.org> <4eb6850c-df1b-fd44-3ee0-d43a50270b53@deltatee.com> <757fca36-dee4-e070-669e-f2788bd78e41@codeaurora.org> <4f761f55-4e9a-dccb-d12f-c59d2cd689db@deltatee.com> <20180313230850.GA45763@bhelgaas-glaptop.roam.corp.google.com> <8de5d3dd-a78f-02d5-0eea-4365364143b6@deltatee.com> <20180314025639.GA50067@bhelgaas-glaptop.roam.corp.google.com> <112493af-ccd0-455b-6600-b50764f7ab7e@deltatee.com> <20180314185159.GD179719@bhelgaas-glaptop.roam.corp.google.com> From: Dan Williams Date: Wed, 14 Mar 2018 21:30:41 -0700 Message-ID: Subject: Re: [PATCH v3 01/11] PCI/P2PDMA: Support peer-to-peer memory List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: Stephen Bates Cc: Jens Axboe , "linux-block@vger.kernel.org" , Alex Williamson , "linux-nvdimm@lists.01.org" , "linux-rdma@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-nvme@lists.infradead.org" , Sinan Kaya , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Jason Gunthorpe , Bjorn Helgaas , Benjamin Herrenschmidt , Bjorn Helgaas , Max Gurtovoy , Keith Busch , Christoph Hellwig List-ID: On Wed, Mar 14, 2018 at 12:34 PM, Stephen Bates wrote: >> P2P over PCI/PCI-X is quite common in devices like raid controllers. > > Hi Dan > > Do you mean between PCIe devices below the RAID controller? Isn't it pretty novel to be able to support PCIe EPs below a RAID controller (as opposed to SCSI based devices)? I'm thinking of the classic I/O offload card where there's an NTB to an internal PCI bus that has a storage controller and raid offload engines. _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm