[openib-general] [PATCH v4 2/7] IB/ipath - Implement new verbs DMA mapping functions

Ralph Campbell ralph.campbell at qlogic.com
Tue Dec 12 10:22:58 PST 2006


On Tue, 2006-12-12 at 10:51 +0200, Or Gerlitz wrote:
> Roland Dreier wrote:
> >  > I would like to see this last set of patches integrated as is.
> >  > I would like to get more experience with the current implementation
> >  > before extending it to support other configurations.
> > 
> > Yeah, let's go with that.  Since ipath depends on 64BIT in Kconfig
> > anyway I think this is OK for now.
> 
> This design of ib_dma_map_single, ib_sg_dma_address etc returning u64 
> instead of dma_addr_t causes the resulted patch to the IB ULPs to be 
> quite big.

I think it was you who pointed out that dma_addr_t is
32 bits on sparc64.  Did you have a different solution
in mind?

> Have you tested any dma_map single (eg IPoIB) and sg (eg SRP or iSER) 
> consumer with this code?

Yes.





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