Date: Sun, 5 Jan 1997 01:41:03 +0100 From: se@FreeBSD.ORG (Stefan Esser) To: p.richards@elsevier.co.uk (Paul Richards) Cc: current@FreeBSD.ORG Subject: Re: 2.2 Beta Message-ID: <Mutt.19970105014103.se@x14.mi.uni-koeln.de> In-Reply-To: <57g20isrgp.fsf@tees.elsevier.co.uk>; from Paul Richards on Jan 3, 1997 15:34:14 %2B0000 References: <57g20isrgp.fsf@tees.elsevier.co.uk>
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On Jan 3, p.richards@elsevier.co.uk (Paul Richards) wrote:
>
> I just tried to install this on a Compaq Deskpro XL 575 which has an
> AMD scsi controller. It didn't work :-(
>
> The amd driver probes the scsi bus and finds the hard disk which is
> listed as (this is all typed in by hand)
>
> (amd0:0:0): "COMPAQPC DPES-31080 S31K" type 0 fixed SCSI 2
> sd0(ams0:0:0): Direct-Access 0Mb (1 512 byte sectors)
> sd0(ams0:0:0): with 0 cyls, 64 heads, and an average 32 sectors/track
Hi Paul!
Is this an OEM variant of the IBM DPES-31080 ?
The name seems to suggest that ...
Since the INQUIRY command returned reasonable
data, there might be a problem with the sync.
transfer rate negotiation.
Could you please try the following patch, first
alone, then combined with the second one:
Index: /sys/pci/scsiiom.c
===================================================================
RCS file: /usr/cvs/src/sys/pci/scsiiom.c,v
retrieving revision 1.1.1.1
diff -C2 -r1.1.1.1 scsiiom.c
*** scsiiom.c 1996/12/15 23:40:48 1.1.1.1
--- scsiiom.c 1997/01/05 00:36:55
***************
*** 591,594 ****
--- 591,596 ----
pDCB->NegoPeriod = pSRB->MsgInBuf[3];
wval = (USHORT) pSRB->MsgInBuf[3];
+ printf ("\tsync period = %d * 4ns, offset = %d\n",
+ pSRB->MsgInBuf[3], pSRB->MsgInBuf[4]);
wval = wval << 2;
wval--;
Please disable synchronous transfers by applying
the following patch in addition to the first one,
and report the results:
Index: /sys/pci/tek390.c
===================================================================
RCS file: /usr/cvs/src/sys/pci/tek390.c,v
retrieving revision 1.5
diff -C2 -r1.5 tek390.c
*** tek390.c 1996/12/20 21:52:11 1.5
--- tek390.c 1997/01/05 00:38:14
***************
*** 1495,1499 ****
for(i=0; i<0x40; i++)
{
! *ptr = (TAG_QUEUING_|EN_DISCONNECT_|SYNC_NEGO_|PARITY_CHK_);
ptr += 4;
}
--- 1495,1499 ----
for(i=0; i<0x40; i++)
{
! *ptr = (TAG_QUEUING_|EN_DISCONNECT_|PARITY_CHK_);
ptr += 4;
}
Regards, STefan
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