Hello, Mark.
Mark Lord wrote:
> Alan Cox wrote:
>>> Oh, and zero means "don't care". So it's really easy to add
>>> to libata without having to patch each and every driver.
>>
>> If its only one driver why not do it the way we do things like transfer
>> length limits for LBA48 (see pata_it821x and others)
> ..
>
> Thanks. I'll do that, and probably go that way for the sata_mv limit.
Yeap, for the time being, that seems to be the simplest thing to do.
> The bigger issue here is that libata really doesn't support multiple mode.
>
> 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.
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
