Subject: Re: SCSI controller setup
To: Anders Magnusson <firstname.lastname@example.org>
From: Tom Ivar Helbekkmo <email@example.com>
Date: 11/26/1998 12:18:30
Anders Magnusson <firstname.lastname@example.org> writes:
> If it emulates MSCP over SCSI (like KFQSA) then it will work,
> otherwise not. I don't know what beast it is actually.
It does not do MSCP. It's a native SCSI-controller, and it uses Qbus
memory in a way that makes it imperative that one _not_ insert a KZQSA
in a system that doesn't have software support for it. Other uses of
the Qbus will fail if the KZQSA is present and not supported! (Where
"supported" means actually supported in the running kernel; the driver
needs to be present.)
Booting from a KZQSA demands explicit KZQSA support in firmware on the
machine -- the multiple new I/O addresses observed by the original
poster indicate that his machine lacks such support, and can't boot
from the controller. I would assume that it's still safe to use it in
the system, but firmware Qbus diagnostics &c may fail in interesting
ways, I suppose.
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