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Re: scsi : aborting command due to timeout

daemon@ATHENA.MIT.EDU (Umesh Soni)
Fri Feb 13 15:10:42 1998

To: "Daniel M. Eischen" <deischen@iworks.InterWorks.org>
cc: U.Soni@cs.ucl.ac.uk, linux-scsi@vger.rutgers.edu
Date: 	Fri, 13 Feb 1998 18:04:48 +0000
From: Umesh Soni <U.Soni@cs.ucl.ac.uk>


I contacted adaptec today asking for a bios upgrade so that highbyte
termination can be changed via the SCSISelect utility. No prizes for
guessing their response (-thanks for buying our product but now you're
on your own mate).

I have e-mailed Gigabye to see if they can help with a bios upgrade
-but I am not holding my breath there either.


 >
 >> My SCSISelect doesn't appear to give me the option of auto-detect.
 >> The only setting in SCSISelect for termination refers to the Low-byte.
 >> The High-byte is turned on/off via a motherboard jumper.
 >
 >And no BIOS upgrade will change anything either I suppose :-(
 >
 >> The problem with the linux aic7xxx driver is that regardless of what I
 >> do with the motherboard (high-byte) jumper, the driver tells me that
 >> high-byte termination is set to exactly the same state as the low-byte
 >> termination.
 >> 
 >> So, the only settings that I can arrive at are;
 >>     Low-byte(on),  High-byte(on)       Both on.
 >> 
 >> or, Low-byte(off), High-byte(off).     Both off.
 >
 >Unlesss a BIOS upgrade will let you use auto-termination or give
 >you access to high byte termination, there is nothing you can do
 >other than hardcode the driver to force the proper termination
 >setting.  This sux :-(  Probably another config option is in
 >order here (another unhappy face :( ).
 >

Yes adding yet another configuration option is bound to add confusion
but if we cannot currently determine the state of the mobo jumper then
I suppose this is what must be done. (I will, however, ask Gigabyte if
they can provide me with programming info in order to determine the
state of the mobo jumper)

I suspect that quite a few others who have purchased this motherboard
would be pleased if this issue was resolved -I certainly see
occasional flurries of e-mail on the linux-smp list concerning this
board.


Umesh Soni.



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