On Gwe, 2005-11-18 at 17:17 +0100, Bartlomiej Zolnierkiewicz wrote:
> Probably it should work fine given that drive->mult_count is on.
>
> The only controller using drive->vdma in the current tree is cs5520
> so you should confirm this with Mark Lord & Alan Cox.
The CS5520 VDMA performs PIO commands with controller driven DMA to PIO
of the data blocks. Thus it can do any PIO command with one data in or
out phase as if it were DMA.
> Long-term we should see if it is possible to remove dynamic IDE
> drive configuration and always just use the best possible settings.
Hotplug rather prevents that. For the lifetime of a drive connection
most of the settings ought to be settable once. Speeds are the obvious
exception.
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