Messages in this thread | | | Date | Sun, 12 Nov 2006 18:39:27 +0000 | From | Pavel Machek <> | Subject | Re: SATA powersave patches |
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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...
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