> The real problem seems to be that IT821x "virtual" ID misses info > about supported DMA modes (while it seems to contain enabled DMA > mode info). It does at least for the RAID volumes which are quite peculiar and seem to have been defined by flipping bits until Windows worked 8) > [ Patch is based on the above theory and Alan's work on pata_it821x. > Sorry for no real description (TODO) but it's almost 3:00 am ... ] Thanks for doing that. I've got a potential patch for libata and the smart mode problem. Turns out that Tejun's sanity checks in the bus reset path are too smart for the firmware ;) Alan - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html