GregH asked me an interesting question at WinHEC today - one for which I didn't immediately know the answer. He was wondering whether the new DMA DDIs (Get|PutScatterGatherList) would return a single SG entry for each page, or whether they would coallesce
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Perhaps you've read through all of my posts about DMA and still think that using the DMA DDIs is optional. After all you've built a 64-bit card, and you're not using DAC so you don't have to worry about busses being downgraded on you (or maybe you don't
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Since i'm on vacation next week, i thought i'd tackle something light this week. Last time i talked about GetScatterGatherList and PutScatterGatherList and how much better they are than the older method of doing DMA. But as much as I like these two functions,
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