Jeff Garzik wrote: > Any chance the SCSI peeps could ACK this, and then let me include it in > the ALPM patchset in the libata tree? ATA link PS is pretty complex with HIPM, DIPM and AHCI ALPM. I'm not sure whether this three level knob would be sufficient. It might be good enough if we're gonna develop extensive in-kernel black/white list specifying which method works on which combination but my gut tells me that it's best left to userland (probably in the form of per-notebook PS profile). Adding to the fun, there are quite a few broken devices out there which act weirdly when link PS actions are taken. Also, I generally don't think AHCI ALPM is a good idea. It doesn't have 'cool down' period before entering PS state which unnecessarily hampers performance and might increase chance of device malfunction. So, mild NACK from me. -- tejun - 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
