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From: "Stephen  Bates" <sbates@raithlin.com>
To: Logan Gunthorpe <logang@deltatee.com>,
	Sinan Kaya <okaya@codeaurora.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Cc: "Jens Axboe" <axboe@kernel.dk>,
	"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	"Keith Busch" <keith.busch@intel.com>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	"Jason Gunthorpe" <jgg@mellanox.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Max Gurtovoy" <maxg@mellanox.com>,
	"Christoph Hellwig" <hch@lst.de>
Subject: Re: [PATCH v3 01/11] PCI/P2PDMA: Support peer-to-peer memory
Date: Tue, 13 Mar 2018 22:31:55 +0000	[thread overview]
Message-ID: <BB94077B-7EB3-49C4-862D-BF77D0A692CC@raithlin.com> (raw)
In-Reply-To: <4f761f55-4e9a-dccb-d12f-c59d2cd689db@deltatee.com>

>> It sounds like you have very tight hardware expectations for this to work
>> at this moment. You also don't want to generalize this code for others and
>> address the shortcomings.
>  No, that's the way the community has pushed this work

Hi Sinan

Thanks for all the input. As Logan has pointed out the switch requirement is something that has evolved over time based on input from the community. You are more than welcome to have an opinion on this (and you have made that opinion clear ;-)). Over time the patchset may evolve from its current requirements but right now we are aligned with the feedback from the community.

Cheers

Stephen
 

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  parent reply	other threads:[~2018-03-13 22:25 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-12 19:35 [PATCH v3 00/11] Copy Offload in NVMe Fabrics with P2P PCI Memory Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 01/11] PCI/P2PDMA: Support peer-to-peer memory Logan Gunthorpe
2018-03-13  3:28   ` Sinan Kaya
2018-03-13 16:43     ` Logan Gunthorpe
2018-03-13 17:49       ` Sinan Kaya
2018-03-13 18:44         ` Logan Gunthorpe
2018-03-13 19:10           ` Sinan Kaya
2018-03-13 19:19             ` Logan Gunthorpe
2018-03-13 19:53               ` Sinan Kaya
2018-03-13 20:46                 ` Logan Gunthorpe
2018-03-13 21:22                   ` Sinan Kaya
2018-03-13 22:00                     ` Logan Gunthorpe
2018-03-13 22:29                       ` Sinan Kaya
2018-03-13 22:45                         ` Stephen  Bates
2018-03-13 22:48                         ` Logan Gunthorpe
2018-03-13 23:19                           ` Sinan Kaya
2018-03-13 23:45                             ` Logan Gunthorpe
2018-03-14 12:16                               ` David Laight
2018-03-14 16:23                                 ` Logan Gunthorpe
2018-03-13 22:31                       ` Stephen  Bates [this message]
2018-03-13 23:08                         ` Bjorn Helgaas
2018-03-13 23:21                           ` Logan Gunthorpe
2018-03-14  2:56                             ` Bjorn Helgaas
2018-03-14 14:05                               ` Stephen  Bates
2018-03-14 16:17                               ` Logan Gunthorpe
2018-03-14 18:51                                 ` Bjorn Helgaas
2018-03-14 19:03                                   ` Logan Gunthorpe
2018-03-14 19:28                                     ` Dan Williams
2018-03-14 19:30                                       ` Logan Gunthorpe
2018-03-14 19:34                                       ` Stephen  Bates
2018-03-15  4:00                                         ` Martin K. Petersen
2018-03-15  4:30                                         ` Dan Williams
2018-03-22 22:57                           ` Stephen  Bates
2018-03-23 21:50                             ` Bjorn Helgaas
2018-03-23 21:59                               ` Logan Gunthorpe
2018-03-24  3:49                                 ` Bjorn Helgaas
2018-03-24 15:28                                   ` Stephen  Bates
2018-03-26 15:43                                     ` Logan Gunthorpe
2018-03-26 11:11       ` Jonathan Cameron
2018-03-26 14:01         ` Bjorn Helgaas
2018-03-26 15:46           ` Logan Gunthorpe
2018-03-27  8:47             ` Jonathan Cameron
2018-03-27 15:37               ` Logan Gunthorpe
2018-04-13 21:56               ` Stephen  Bates
2018-03-26 16:41         ` Jason Gunthorpe
2018-03-26 17:30           ` Logan Gunthorpe
2018-03-26 19:35             ` Jason Gunthorpe
2018-03-26 20:42               ` Logan Gunthorpe
2018-03-13 18:40     ` Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 02/11] PCI/P2PDMA: Add sysfs group to display p2pmem stats Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 03/11] PCI/P2PDMA: Add PCI p2pmem dma mappings to adjust the bus offset Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 04/11] PCI/P2PDMA: Clear ACS P2P flags for all devices behind switches Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 05/11] PCI/P2PDMA: Add P2P DMA driver writer's documentation Logan Gunthorpe
2018-03-12 19:41   ` Jonathan Corbet
2018-03-12 21:18     ` Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 06/11] block: Introduce PCI P2P flags for request and request queue Logan Gunthorpe
2018-03-21  9:27   ` Christoph Hellwig
2018-03-12 19:35 ` [PATCH v3 07/11] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() Logan Gunthorpe
2018-03-21  9:27   ` Christoph Hellwig
2018-03-12 19:35 ` [PATCH v3 08/11] nvme-pci: Use PCI p2pmem subsystem to manage the CMB Logan Gunthorpe
2018-03-13  1:55   ` Sinan Kaya
2018-03-13  1:58     ` Sinan Kaya
2018-03-12 19:35 ` [PATCH v3 09/11] nvme-pci: Add support for P2P memory in requests Logan Gunthorpe
2018-03-21  9:23   ` Christoph Hellwig
2018-03-12 19:35 ` [PATCH v3 10/11] nvme-pci: Add a quirk for a pseudo CMB Logan Gunthorpe
2018-03-12 19:35 ` [PATCH v3 11/11] nvmet: Optionally use PCI P2P memory Logan Gunthorpe
2018-03-21  9:27   ` Christoph Hellwig
2018-03-21 16:52     ` Logan Gunthorpe

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