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From: Christoph Hellwig <hch@lst.de>
To: Logan Gunthorpe <logang@deltatee.com>
Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-nvme@lists.infradead.org, linux-rdma@vger.kernel.org,
	Bjorn Helgaas <bhelgaas@google.com>,
	Christoph Hellwig <hch@lst.de>,
	Christian Koenig <Christian.Koenig@amd.com>,
	Jason Gunthorpe <jgg@mellanox.com>,
	Sagi Grimberg <sagi@grimberg.me>, Keith Busch <kbusch@kernel.org>,
	Jens Axboe <axboe@fb.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Eric Pilmore <epilmore@gigaio.com>,
	Stephen Bates <sbates@raithlin.com>
Subject: Re: [PATCH v3 11/14] PCI/P2PDMA: Store mapping method in an xarray
Date: Fri, 16 Aug 2019 10:14:54 +0200
Message-ID: <20190816081454.GK9249@lst.de> (raw)
In-Reply-To: <20190812173048.9186-12-logang@deltatee.com>

On Mon, Aug 12, 2019 at 11:30:45AM -0600, Logan Gunthorpe wrote:
> When upstream_bridge_distance() is called, store the method required to map
> the DMA transfers in an xarray so it can be looked up efficiently on the
> hot path in pci_p2pdma_map_sg().
> 
> Link: https://lore.kernel.org/r/20190730163545.4915-12-logang@deltatee.com
> Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>

  reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-12 17:30 [PATCH v3 00/14] PCI/P2PDMA: Support transactions that hit the host bridge Logan Gunthorpe
2019-08-12 17:30 ` [PATCH v3 01/14] PCI/P2PDMA: Introduce private pagemap structure Logan Gunthorpe
2019-08-16  8:06   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 02/14] PCI/P2PDMA: Add provider's pci_dev to pci_p2pdma_pagemap struct Logan Gunthorpe
2019-08-16  8:06   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 03/14] PCI/P2PDMA: Add constants for map type results to upstream_bridge_distance() Logan Gunthorpe
2019-08-16  8:08   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 04/14] PCI/P2PDMA: Factor out __upstream_bridge_distance() Logan Gunthorpe
2019-08-16  8:08   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 05/14] PCI/P2PDMA: Apply host bridge whitelist for ACS Logan Gunthorpe
2019-08-16  8:09   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 06/14] PCI/P2PDMA: Factor out host_bridge_whitelist() Logan Gunthorpe
2019-08-16  8:09   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 07/14] PCI/P2PDMA: Whitelist some Intel host bridges Logan Gunthorpe
2019-08-16  8:11   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 08/14] PCI/P2PDMA: Add attrs argument to pci_p2pdma_map_sg() Logan Gunthorpe
2019-08-16  8:12   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 09/14] PCI/P2PDMA: Introduce pci_p2pdma_unmap_sg() Logan Gunthorpe
2019-08-16  8:13   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 10/14] PCI/P2PDMA: Factor out __pci_p2pdma_map_sg() Logan Gunthorpe
2019-08-16  8:14   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 11/14] PCI/P2PDMA: Store mapping method in an xarray Logan Gunthorpe
2019-08-16  8:14   ` Christoph Hellwig [this message]
2019-08-12 17:30 ` [PATCH v3 12/14] PCI/P2PDMA: dma_map() requests that traverse the host bridge Logan Gunthorpe
2019-08-16  8:15   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 13/14] PCI/P2PDMA: Allow IOMMU for host bridge whitelist Logan Gunthorpe
2019-08-16  8:16   ` Christoph Hellwig
2019-08-12 17:30 ` [PATCH v3 14/14] PCI/P2PDMA: Update pci_p2pdma_distance_many() documentation Logan Gunthorpe
2019-08-16  8:16   ` Christoph Hellwig
2019-08-16 13:45 ` [PATCH v3 00/14] PCI/P2PDMA: Support transactions that hit the host bridge Bjorn Helgaas

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