Re: SCSI dynamic power management

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

 



On Tue, 2007-11-20 at 16:07 +0100, Oliver Neukum wrote:
> Am Dienstag 20 November 2007 schrieb James Bottomley:
> > I don't understand why you want to do this.  Power management is a
> > layered issue on SCSI, divided (as always) into host, device and
> > transport.  The idle you're talking about is a pure device thing, so it
> > can be managed by the ULD (and currently is).  When a unit is stopped,
> 
> The lower layers don't know how to correctly suspend a device. sd_suspend()
> may know how to do it. It would also mean the LLD having to detect idleness.

You really mean you want to involve the transport as well, right?  So
ipso facto this is more than simple idleness management.  Thus, you
really need to look into the full solution (host, transport and ULD).

James


-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux