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SubjectRe: VIA IDE driver, v1.5 (final)
On Mon, Jul 17, 2000 at 03:04:30PM -0700, David Ford wrote:

> Good to hear. I gather from Andre's postings that really a time constraint and
> what needs to be mapped in pci config space.
> If I only had another dozen hours in a day..

I'll try to find the bit if it is there. I still don't have enough info
(except for some T13 drafts) on how the 80-wire cable detection works in
hardware. I don't like having to manually configure this either.

It could be the BIOSes just try UDMA66 and if they get CRC errors they
fall back to a lower speed. It could be the BIOS can ask the drive if it
sees an 80-wire cable.

Btw, UDMA mode 3 (44.4 MB/sec) works well even on 40-wire cables and has
not much speed difference to udma66.

> Vojtech Pavlik wrote:
> > On Mon, Jul 17, 2000 at 05:41:59AM -0700, David Ford wrote:
> > > Is this a permanent plan? More and more options are being hammered into the
> > > append line and LILO has a limit as well as the limits of users understanding
> > > that they need to put that there.
> >
> > Well, I removed the splitfifo= option too, so the number remains
> > constant. Unfortunately there's no known way to find out whether the
> > 80-wire cable is installed, so the ata66 option seems to be a reasonable
> > solution. It's used for other IDE hardware (amd750) as well).
> --
> "The difference between 'involvement' and 'commitment' is like an
> eggs-and-ham breakfast: the chicken was 'involved' - the pig was
> 'committed'."

Content-Description: Card for David Ford

Vojtech Pavlik
SuSE Labs

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