Messages in this thread | | | From | Al Boldi <> | Subject | Re: Forcing modes in libata (was: SATA buffered read VERY slow) | Date | Sun, 6 Jan 2008 08:03:31 +0300 |
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Alan Cox wrote: > Al Boldi <a1426z@gawab.com> wrote: > > What's hindering the ability to force a mode in libata, as is possible > > with the normal ide-driver? > > We want it to be correct and race free. That means we have to synchronize > all the devices on the controller, quiesce them and recompute the speeds > for each device then turn them all back on and resume command processing. > > It is quite hairy although Tejun's EH work has provided the framework for > all of this. > > For now you can boot with libata.dma=1 to select DMA on disks but not CD
Great, but why isn't this in the documentation?
Thanks!
-- Al
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