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Date:      Thu, 8 Feb 2001 10:10:16 -0600
From:      "Joseph E. Royce" <joe@freyr.cba.ualr.edu>
To:        rlugo@usgs.gov
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: sym driver and manufacturer don't agree on xfer rate of 53C896 controller
Message-ID:  <20010208101016.A12818@freyr.cba.ualr.edu>
In-Reply-To: <OF5E8964E3.98C986F7-ON882569ED.0032E3B2@wr.usgs.gov>; from rlugo@usgs.gov on Thu, Feb 08, 2001 at 01:24:40AM -0800
References:  <OF5E8964E3.98C986F7-ON882569ED.0032E3B2@wr.usgs.gov>

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On Thu, Feb 08, 2001 at 01:24:40AM -0800, rlugo@usgs.gov wrote:
> The sym driver as of 4.2-Stable, and the man page state 
> the transfer rate of my symbios scsi controller is 40 MByte
> per sec.  The man page says that is the speed of the 896
> chip.
> 
I looked at the man page and didn see anything about transfer rates.
Were you per chance looking at the sync rate, 40MHz?

> The symbios web site data sheet states the transfer rate is
> at 80 Mbyte per second. 
> 
> Is there anyway to get the full potential out of this controller?
>

I have a 895 that once did the same thing. It was detected by the 
ncr driver and not getting the correct transfer rate. I checked the 
kernel config file and comment out the following:
device          ncr             # NCR/Symbios Logic
options         SYM_SETUP_LP_PROBE_MAP=0x40

Recompiled the kernel and it was correctly detected by the sym driver.
Try it and see if it works for you.

Joe Royce



> http://www.lsilogic.com/
> 
> 
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