Bartlomiej Zolnierkiewicz wrote: > Hi, > > On 2/5/07, Tejun Heo <htejun@xxxxxxxxx> wrote: >> Alan wrote: >> >> The *real* solution is to use the BIOS ACPI _GTM _STM methods for >> this. >> >> Then you can remove all chipset specific knowledge from the IDE >> driver. >> >> This is what the MS driver does on Windows, so you know it's >> received a >> >> lot of testing from NVIDIA and board vendors. > > Allen, thanks for quick reply. > > Your mail explained the issue pretty well and saved us a lot of time. My thanks too. >> > Well we can certainly do some of that if ACPI is present and active. In >> > particular since _GTM will give us current modes allowing for >> hotplug and >> > post BIOS boot kexec etc it ought to be safe to do Tejun's hack that >> way. >> > We could even probe UDMA3+ capable devices by doing _STM to a high mode >> > and _GTM to determine the cable type 8) > > agreed > >> Glad to see the problem getting solved. Now that we know the solution, >> any volunteers? :-) > > Well, since you posted the initial patches and have the affected > hardware... 8) I'll be on the road for the next two weeks and Alan seems to have taken it already. :-) -- 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
