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SubjectRe: 2.3.14 and VIA IDE controller (MPV3 boards)
andre@suse.com wrote:
> If the ISA-Bridge revision on any VIA chipset group is not 0x20 or
> greater, UDMA is questionable.

Miness 0x25, VP2/97 and pretty questionable. Locks up after an hour or
two if I just enable DMA. I found `hdparm -X34 -d1' lets me use DMA
without any hangs. Speed is markedly improved with it. Can't get UDMA
at all though. Not a clue how. BIOS doesn't support it but disk does.

I don't know if the recent chipset tuning stuff helps. Haven't tried
removing the -X34 to find out.

00:00.0 Host bridge: VIA Technologies, Inc. VT82C595/97 [Apollo VP2/97] (rev 03)
Flags: bus master, 66Mhz, medium devsel, latency 32

00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586 ISA [Apollo VP] (rev 25)
Flags: bus master, medium devsel, latency 0

00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) (prog-if 8a)
Flags: bus master, medium devsel, latency 32
I/O ports at ffa0

enjoy,
-- Jamie

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