Messages in this thread | | | Subject | Re: [RFC 0/8] Copy Offload with Peer-to-Peer PCI Memory | From | Benjamin Herrenschmidt <> | Date | Wed, 19 Apr 2017 11:17:49 +1000 |
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On Tue, 2017-04-18 at 14:48 -0600, Logan Gunthorpe wrote: > > ...and that dma_map goes through get_dma_ops(), so I don't see the conflict? > > The main conflict is in dma_map_sg which only does get_dma_ops once but > the sg may contain memory of different types.
We can handle that in our "overriden" dma ops.
It's a bit tricky but it *could* break it down into segments and forward portions back to the original dma ops.
Ben.
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