[openib-general] ib_memory_register() equivalent in gen2

Grant Grundler iod00d at hp.com
Fri Aug 5 10:16:04 PDT 2005


On Thu, Aug 04, 2005 at 08:56:39PM -0700, Roland Dreier wrote:
> This is intentional, because
> there is not a general way to translate a kernel virtual address to a
> bus address that can be passed to a device.

Paul,
Well, IB can't offer a general method. But the kernel does have one
and it's documented in Documentation/DMA-API.txt.
See SDP and IPoIB for use of dma_map_single() and related calls.

grant



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