linux-kernel - Re: [PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory

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Message-ID: <20181011031858.GL5906@bhelgaas-glaptop.roam.corp.google.com>
Date:   Wed, 10 Oct 2018 22:18:58 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Logan Gunthorpe <logang@...tatee.com>
Cc:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-nvme@...ts.infradead.org, linux-rdma@...r.kernel.org,
        linux-nvdimm@...ts.01.org, linux-block@...r.kernel.org,
        Stephen Bates <sbates@...thlin.com>,
        Christoph Hellwig <hch@....de>,
        Keith Busch <keith.busch@...el.com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Max Gurtovoy <maxg@...lanox.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Jérôme Glisse <jglisse@...hat.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Christian König <christian.koenig@....com>,
        Jens Axboe <axboe@...nel.dk>
Subject: Re: [PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory

On Wed, Oct 10, 2018 at 05:03:33PM -0600, Logan Gunthorpe wrote:
> 
> 
> On 2018-10-10 2:19 p.m., Bjorn Helgaas wrote:
> > I added the reviewed-by tags from Christoph, Jens' ack on the blkdev.h
> > change, and applied these to pci/peer-to-peer with the intent of
> > merging these for v4.20.
> > 
> > I gave up on waiting for an ack for the memremap.h and mm.h changes.
> > 
> > I dropped the "nvme-pci: Add a quirk for a pseudo CMB" quirk because
> > of Christoph's objection.  After this is all merged, I won't need to
> > be involved, and you and the NVMe folks can hash that out.
> > 
> > If there are updates to "nvmet: Optionally use PCI P2P memory" based
> > on Sagi's comments, send an incremental patch and I'll fold them in.
> 
> Thanks for picking this up. However, I hate to throw a wrench in the
> works, but I had a v10[1] queued up because kbuild found some problems
> with the series over the weekend. I can send v10 off right away if you
> want to just replace it in your branch or, if you'd like, I can generate
> some incremental patches. Let me know which you'd prefer.

I applied the updates from your v10 to my pci/peer-to-peer branch.

> [1] https://github.com/sbates130272/linux-p2pmem pci-p2p-v10