Hi!
> >and I do not see powersave tunable:
> >
> >root@amd:/sys/module# ls libata/parameters/
> >ata_probe_timeout atapi_enabled
> >hotplug_polling_interval
> >atapi_dmadir fua
> >
> >...how do I pull working version?
>
> I haven't updated link powersave patch yet. Core
> implementation was agreed on but interface hasn't been
> decided yet. Maybe it's about time to add
> /sys/class/ata_{host|device}/. So, the patchset is
> pushed back for the time being.
/sys/class/ata* would probably be ok.
> >Well... things are pretty quiet in that area just
> >now... So yes.
>
> If I understood correctly, the high power consumption of
> ahci controller can be solved by dynamically turning off
> command processing while the controller is idle, which
> fits nicely into link powersaving, right? So, I think
> full-fledged leveled dynamic PM would be an overkill for
> this particular problem, but then again, maybe the
It is single bit, and it should not even need a timeout, AFAICT, so
perhaps we should just fix it (no need for dynamic PM layers). It
probably does not even need to be configurable...
--
Thanks for all the (sleeping) penguins.
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