Jeff Garzik wrote: > Tejun Heo wrote: >> IIRC, AA is in the ahci spec from rev 1.0, so if controllers implement > > AHCI? Perhaps. But AA is not in the _Serial ATA_ 1.0 spec... > > It was added in SATA II, and the SATA II specs specifically mention that > AA was not present in SATA 1.0. Yeap, it wasn't in SATA 1.0 but it was in ahci 1.0 so _theoretically_ all ahcis should be fine with it. We can introduce ATA_FLAG_FPDMA_AA and let the drivers set it. It would probably be better to set it during -rc's and then disable it for release for a few devel cycles. Thanks. -- 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