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Date: Thu, 8 Aug 2019 09:29:47 +0200
From: Christoph Hellwig <hch@....de>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: Christoph Hellwig <hch@....de>,
Logan Gunthorpe <logang@...tatee.com>,
Sagi Grimberg <sagi@...mberg.me>, linux-rdma@...r.kernel.org,
linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-nvme@...ts.infradead.org,
Christian Koenig <Christian.Koenig@....com>,
Jens Axboe <axboe@...com>, Keith Busch <kbusch@...nel.org>,
Jason Gunthorpe <jgg@...lanox.com>,
Stephen Bates <sbates@...thlin.com>,
Dan Williams <dan.j.williams@...el.com>,
Eric Pilmore <epilmore@...aio.com>
Subject: Re: [PATCH v2 13/14] PCI/P2PDMA: No longer require no-mmu for host
bridge whitelist
On Wed, Aug 07, 2019 at 07:43:01AM -0500, Bjorn Helgaas wrote:
> On Wed, Aug 07, 2019 at 07:59:58AM +0200, Christoph Hellwig wrote:
> > no-mmu sounds stange, as we use that for linux ports without paging
> > hardware. I think an "io" got lost somewhere..
>
> I had already changed the subject to
>
> PCI/P2PDMA: Allow IOMMU for host bridge whitelist
>
> but certainly open to better suggestions.
Maybe:
PCI/P2PDMA: Allow P2P transfers behind IOMMUs
?
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