From: Manuel Bouyer <bouyer@antioche.eu.org>
Subject: Re: SIS735
Date: Sat, 17 Nov 2001 15:35:49 +0100

> > is the SIS735 chipset supported? I have an ECS K7S5A motherboard
> > with this chipset, but it doesn't connect any drives at a higher
> > speed than UDMA/33 and the audio isn't configured too. I'm using
> > NetBSD 1.5.1 on this PC.
> Pciide shoud be properly supported in -current. It has not been pulled up to

I use ECS K7S5A motherboard, too.  In -current, my dmesg says:

pciide0 at pci0 dev 2 function 5: Silicon Integrated System 5597/5598 IDE controller (rev. 0xd0)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
wd0 at pciide0 channel 0 drive 0: <IBM-DTTA-371010>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 9641 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 19746720 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
wd1 at pciide0 channel 0 drive 1: <FUJITSU MPG3409AT E>
wd1: drive supports 16-sector PIO transfers, LBA addressing
wd1: 39093 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 80063424 sectors
wd1: 32-bit data port
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
pciide0: primary channel interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)

Successfully detected. :-)

However, I got the following message right after the first access to
the hard disks:

wd0: transfer error, downgrading to Ultra-DMA mode 1
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 1 (using DMA data transfers)
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)
wd0f: aborted command, interface CRC error writing fsbn 32 of 32-33 (wd0 bn 9799513; cn 9721 tn 11 sn 52), retrying
wd0: transfer error, downgrading to PIO mode 4
wd0(pciide0:0:0): using PIO mode 4
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)
wd0f: aborted command, interface CRC error writing fsbn 32 of 32-33 (wd0 bn 9799513; cn 9721 tn 11 sn 52), retrying
wd0: soft error (corrected)

Why does wd0 downgrade?  What is a cause?

Yesterday, I tried to update the BIOS to the latest one, but the
problem did not be solved.  I think that my hardware configuration
is correct.

Does anybody have this problem?  Solutions??

-------
HAYASAKA, Ryo
mailto:ryoh@jaist.ac.jp http://www.jaist.ac.jp/%7Eryoh/
Japan Advanced Institute of Science and Technology (JAIST)