[openib-general] [PATCHv2] mthca: speed up memory registration by filling MTTs directly

[Michael S. Tsirkin]

>  > > What saves us for the MTT table is that with your patch the device
>  > > never writes to the MTT table at all.
>  > 
>  > Except for the reserved MTTs.
> 
> Good point.  So I guess we need a patch that makes sure all reserved
> MTTs are given their own ICM chunk (which doesn't need to be in
> lowmem) to fix things.

Or just round up the # of reserved MTTs to CPU cache line size.

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MST