I am looking for specifications for the Crystal Beach DMA controller. So far I only found the register specifications in the Xeon Processor Data sheet.
I've got a Ivy Bridge machine: Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz running on an Intel Corporation C600/X79 series chipset.
We want to build a DMA driver for our research operating system (non Linux/Windows/solaris/bsd based). So I am basically looking for a specification to the following device i.e. how to setup the descriptor chains etc.
Intel Corporation Xeon E5 v2/Core i7 Crystal Beach DMA Channel 0 (rev 04)