From: Jens Axboe <axboe@kernel.dk>
To: Logan Gunthorpe <logang@deltatee.com>,
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" <sbates@raithlin.com>,
"Christoph Hellwig" <hch@lst.de>,
"Keith Busch" <keith.busch@intel.com>,
"Sagi Grimberg" <sagi@grimberg.me>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Jason Gunthorpe" <jgg@mellanox.com>,
"Max Gurtovoy" <maxg@mellanox.com>,
"Dan Williams" <dan.j.williams@intel.com>,
"Jérôme Glisse" <jglisse@redhat.com>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Alex Williamson" <alex.williamson@redhat.com>,
"Christian König" <christian.koenig@amd.com>
Subject: Re: [PATCH v6 07/13] block: Add PCI P2P flag for request queue and check support for requests
Date: Wed, 12 Sep 2018 18:28:50 -0600 [thread overview]
Message-ID: <0118d3d8-a2f5-047f-6627-04ac3d0371ad@kernel.dk> (raw)
In-Reply-To: <20180913001156.4115-8-logang@deltatee.com>
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.
--
Jens Axboe
next prev parent reply other threads:[~2018-09-13 0:28 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-13 0:11 [PATCH v6 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory Logan Gunthorpe
[not found] ` <20180913001156.4115-1-logang-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-13 0:11 ` [PATCH v6 01/13] PCI/P2PDMA: Support peer-to-peer memory Logan Gunthorpe
2018-09-20 22:38 ` Bjorn Helgaas
[not found] ` <20180920223829.GD224714-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2018-09-20 22:47 ` Logan Gunthorpe
[not found] ` <ab733346-9518-ed68-492d-e52929586293-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 13:00 ` Bjorn Helgaas
[not found] ` <20180921130010.GE224714-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2018-09-21 15:37 ` Logan Gunthorpe
[not found] ` <a7e2b2cb-ea35-0a97-498b-1f5753e406aa-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 16:05 ` Christoph Hellwig
2018-09-13 0:11 ` [PATCH v6 02/13] PCI/P2PDMA: Add sysfs group to display p2pmem stats Logan Gunthorpe
[not found] ` <20180913001156.4115-3-logang-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 13:07 ` Bjorn Helgaas
2018-09-13 0:11 ` [PATCH v6 03/13] PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset Logan Gunthorpe
[not found] ` <20180913001156.4115-4-logang-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 13:15 ` Bjorn Helgaas
[not found] ` <20180921131550.GG224714-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2018-09-21 16:48 ` Bjorn Helgaas
[not found] ` <20180921164813.GJ224714-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2018-09-21 18:13 ` Logan Gunthorpe
[not found] ` <506dd00c-35e9-e285-bc97-c689c766b4cf-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 20:00 ` Bjorn Helgaas
2018-09-21 20:01 ` Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 04/13] PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers Logan Gunthorpe
[not found] ` <20180913001156.4115-5-logang-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 16:18 ` Bjorn Helgaas
[not found] ` <20180921161858.GH224714-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2018-09-21 19:44 ` Logan Gunthorpe
2018-09-21 21:12 ` Logan Gunthorpe
2018-09-24 22:39 ` Bjorn Helgaas
2018-09-13 0:11 ` [PATCH v6 05/13] docs-rst: Add a new directory for PCI documentation Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation Logan Gunthorpe
2018-09-21 16:41 ` Bjorn Helgaas
2018-09-21 18:03 ` Logan Gunthorpe
[not found] ` <e9739430-b238-2078-a51f-d76bae5342d1-OTvnGxWRz7hWk0Htik3J/w@public.gmane.org>
2018-09-21 19:47 ` Bjorn Helgaas
2018-09-13 0:11 ` [PATCH v6 07/13] block: Add PCI P2P flag for request queue and check support for requests Logan Gunthorpe
2018-09-13 0:28 ` Jens Axboe [this message]
[not found] ` <0118d3d8-a2f5-047f-6627-04ac3d0371ad-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2018-09-13 16:14 ` Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 08/13] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 09/13] nvme-pci: Use PCI p2pmem subsystem to manage the CMB Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 10/13] nvme-pci: Add support for P2P memory in requests Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 11/13] nvme-pci: Add a quirk for a pseudo CMB Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 12/13] nvmet: Introduce helper functions to allocate and free request SGLs Logan Gunthorpe
2018-09-13 0:11 ` [PATCH v6 13/13] nvmet: Optionally use PCI P2P memory Logan Gunthorpe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0118d3d8-a2f5-047f-6627-04ac3d0371ad@kernel.dk \
--to=axboe@kernel.dk \
--cc=alex.williamson@redhat.com \
--cc=benh@kernel.crashing.org \
--cc=bhelgaas@google.com \
--cc=christian.koenig@amd.com \
--cc=dan.j.williams@intel.com \
--cc=hch@lst.de \
--cc=jgg@mellanox.com \
--cc=jglisse@redhat.com \
--cc=keith.busch@intel.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvdimm@lists.01.org \
--cc=linux-nvme@lists.infradead.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=logang@deltatee.com \
--cc=maxg@mellanox.com \
--cc=sagi@grimberg.me \
--cc=sbates@raithlin.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).