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 for <linux-nvdimm@lists.01.org>; Tue, 25 Sep 2018 10:09:43 -0700 (PDT)
Date: Tue, 25 Sep 2018 11:11:48 -0600
From: Keith Busch <keith.busch@intel.com>
Subject: Re: [PATCH v7 10/13] nvme-pci: Add support for P2P memory in requests
Message-ID: <20180925171147.GB11822@localhost.localdomain>
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 <20180925162231.4354-11-logang@deltatee.com>
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To: Logan Gunthorpe <logang@deltatee.com>
Cc: Jens Axboe <axboe@kernel.dk>, Alex Williamson <alex.williamson@redhat.com>, linux-nvdimm@lists.01.org, linux-rdma@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, =?iso-8859-1?B?Suly9G1l?= Glisse <jglisse@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>, Christian =?iso-8859-1?Q?K=F6nig?= <christian.koenig@amd.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Bjorn Helgaas <bhelgaas@google.com>, Max Gurtovoy <maxg@mellanox.com>, Christoph Hellwig <hch@lst.de>
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On Tue, Sep 25, 2018 at 10:22:28AM -0600, Logan Gunthorpe wrote:
> For P2P requests, we must use the pci_p2pmem_map_sg() function
> instead of the dma_map_sg functions.

Sorry if this was already discussed. Is there a reason the following
pattern is not pushed to the generic dma_map_sg_attrs?

	if (is_pci_p2pdma_page(sg_page(sg)))
		pci_p2pdma_map_sg(dev, sg, nents, dma_dir);

Beyond that, series looks good.
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