Tejun Heo wrote:
Mark Lord wrote:Sure, it will blindly use it if the drive appears to be already configured for it at startup. But I don't see any where that we issue "SET MULTIPLE" commands or otherwise support turning it on/off or tuning it. I wonder if we even snoop the SET MULTIPLE command from SG_IO / ATA_{12,16}? This is more of an infrastructure thing than a driver-specific setting, so I'm hoping that one of you three (who know the code a lot better than I do) might think about that for the future.Right, libata doesn't have any multiple sector related configuration whatsoever. Maybe I'll give it a shot.
Yeah, that has long been a design decision -- avoid all the mechanics of PIO-Multi, simply because we did not have much of a need for it (and still don't).
Albert Lee worked on PIO-Multi a while ago, which was mainly to get ATA_{12,16} working, IIRC.
But overall, I don't see much of a need to introduce it into the main stack? Jeff -- 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
