From owner-freebsd-current  Tue Oct 19 12:25:40 1999
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Date: Tue, 19 Oct 1999 15:25:27 -0400 (EDT)
From: Luoqi Chen <luoqi@watermarkgroup.com>
Message-Id: <199910191925.PAA22615@lor.watermarkgroup.com>
To: camel@avias.com
Subject: Re:  luoqi's aic driver problem
Cc: current@FreeBSD.ORG
Sender: owner-freebsd-current@FreeBSD.ORG
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X-Loop: FreeBSD.ORG

> i've tried new "camfied" aic driver today and failed. here is a brief
> report.
> 
> my configuration:
> 
> Chaintech 6BTM mainboard with Celeron 416A processor and 128 Mb of memory
> Adaptec AIC-6360 SCSI controller (port 0x340 irq 9), irq 9 is reserved for
> Legacy/ISA card in bios setup
> Pinnacle 1000 CD writer (with SCSI device ID set to 0)
> 
> kernel settings:
> 
> options     "CD9660"
> options     "CD9660_ROOT"
> options     SCSI_DELAY=15000
> controller  scbus0
> controller  aic0 at isa? port 0x340 irq 9
> device      cd0  at aic?
should be just "device cd0"

> results:
> 
> aic controller was successfully found by the kernel, but after "Waiting 15
> seconds for SCSI devices to settle" message it said the following:
> 
> (probe0:aic0:0:0:0): REQUEST SENSE. CDB: 3 0 0 0 20 0
> (probe0:aic0:0:0:0): UNIT ATTENTION info?:1 asc:29,0
> (probe0:aic0:0:0:0): Power on, reset, or bus device reset occured
> (probe0:aic0:0:0:1): REQUEST SENSE. CDB: 3 4 0 0 12 0
> (probe0:aic0:0:0:1): ILLEGAL REQEST asc:25,0
> (probe0:aic0:0:0:1): Logical unit not supported

The request sense command clobbered the original command, I've changed the
code from doing that, please download a new copy of aic.c file.

> (probe0:aic0:0:0:2): ccb 0xc09c3000 - timed out
> (probe0:aic0:0:0:2): ccb 0xc09c3000 - timed out

Was there a long period between these two messages and the previous ones?
Please try the new aic.c file, it will print out if a different command
is holding up the scsi bus.

> 
> after that my system just hangs.

The timeout handling code is flaky, I need to understand how it should work
a little better.

> 
> what is possible reason of such behaviour and what should i try to do to
> make my aic/cdrom combination working?
> 
For now you could add a quirk entry for this drive to prevent multi-lun
probing, until we figure out what went wrong.

> thank you in advance.
> 
> 
> sincerely,
> ilya naumov (at work)
> 
-lq


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