Scott Long wrote this message on Thu, Jul 19, 2007 at 00:56 -0400: > 1Gb and 10Gb adapters. The question I have is whether this new back-end > should be accessible directly through yet another bus_dmamap_load_foo > variant that the drivers need to know specifically about, or indirectly > and automatically via the existing bus_dmamap_load_foo variants. The > tradeoff is further API pollution vs the opportunity for even more > efficiency through no indirect function calls and no cache misses from > accessing the busdma tag. I don't like API pollution since it makes it > harder to maintain code, but the opportunity for the best performance > possible is also appealing. My vote would be to keep the existing api, and add a flag to the tag to select which backend to use... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."Received on Sat Jul 21 2007 - 22:12:45 UTC
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