Hello Sergei, > How about non-AHCI FIS-based controllers? Right. Since it's cost prohibitive for me to test exhaustively on non-AHCI FIS-based controllers, do you think it would be acceptable to add a new ATA host flag... something like, ATA_FLAG_AHCI, which would denote the controller as being AHCI-based? Then the flag could be used to gate processing of READ/WRITE/SEND/RECEIVE FPDMA commands that have the 'auxiliary' field set. Or, I could add a big fat warning print whenever an ata_queued_cmd is passed to the drivers with a non-zero 'auxiliary' value. Regards, Marc -- 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