Re: [PATCH v9 11/13] nvme-pci: Add a quirk for a pseudo CMB

[PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
[PATCH v9 10/13] nvme-pci: Add support for P2P memory in requests · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
[PATCH v9 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
[PATCH v9 12/13] nvmet: Introduce helper functions to allocate and free request SGLs · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 12/13] nvmet: Introduce helper functions to allocate and free request SGLs · Christoph Hellwig <hch@lst.de> · 2018-10-05
[PATCH v9 08/13] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 08/13] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() · Christoph Hellwig <hch@lst.de> · 2018-10-05
[PATCH v9 02/13] PCI/P2PDMA: Add sysfs group to display p2pmem stats · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 02/13] PCI/P2PDMA: Add sysfs group to display p2pmem stats · Christoph Hellwig <hch@lst.de> · 2018-10-05
[PATCH v9 11/13] nvme-pci: Add a quirk for a pseudo CMB · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 11/13] nvme-pci: Add a quirk for a pseudo CMB · Christoph Hellwig <hch@lst.de> · 2018-10-05
Re: [PATCH v9 11/13] nvme-pci: Add a quirk for a pseudo CMB · Logan Gunthorpe <logang@deltatee.com> · 2018-10-05
[PATCH v9 04/13] PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 04/13] PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers · Christoph Hellwig <hch@lst.de> · 2018-10-05
[PATCH v9 13/13] nvmet: Optionally use PCI P2P memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 13/13] nvmet: Optionally use PCI P2P memory · Sagi Grimberg <sagi@grimberg.me> · 2018-10-04
Re: [PATCH v9 13/13] nvmet: Optionally use PCI P2P memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 13/13] nvmet: Optionally use PCI P2P memory · Christoph Hellwig <hch@lst.de> · 2018-10-05
Re: [PATCH v9 13/13] nvmet: Optionally use PCI P2P memory · Sagi Grimberg <sagi@grimberg.me> · 2018-10-05
Re: [PATCH v9 13/13] nvmet: Optionally use PCI P2P memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-05
[PATCH v9 09/13] nvme-pci: Use PCI p2pmem subsystem to manage the CMB · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 09/13] nvme-pci: Use PCI p2pmem subsystem to manage the CMB · Christoph Hellwig <hch@lst.de> · 2018-10-05
[PATCH v9 05/13] docs-rst: Add a new directory for PCI documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
[PATCH v9 03/13] PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 03/13] PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset · Christoph Hellwig <hch@lst.de> · 2018-10-05
[PATCH v9 01/13] PCI/P2PDMA: Support peer-to-peer memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
[PATCH v9 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-10-04
Re: [PATCH v9 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-10-05
Re: [PATCH v9 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-10-06
Re: [PATCH v9 07/13] block: Add PCI P2P flag for request queue and check support for requests · Bjorn Helgaas <helgaas@kernel.org> · 2018-10-10
Re: [PATCH v9 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-10-10
Re: [PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Bjorn Helgaas <helgaas@kernel.org> · 2018-10-10
Re: [PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-10
Re: [PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Bjorn Helgaas <helgaas@kernel.org> · 2018-10-11
Re: [PATCH v9 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Logan Gunthorpe <logang@deltatee.com> · 2018-10-11

From: Christoph Hellwig <hch@lst.de>
Date: 2018-10-05 07:10:49
Also in: linux-nvme, linux-pci, linux-rdma, lkml, nvdimm

On Thu, Oct 04, 2018 at 03:27:45PM -0600, Logan Gunthorpe wrote:

Introduce a quirk to use CMB-like memory on older devices that have
an exposed BAR but do not advertise support for using CMBLOC and
CMBSIZE.

We'd like to use some of these older cards to test P2P memory.

I can't sat that I really like adding support for non-standardized
"features" (vs bugs) in the nvme driver.

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