Re: SATA powersave patches

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux