Date: Fri, 9 Feb 2001 20:57:57 -0800 From: rlugo@usgs.gov To: "Joseph E. Royce" <joe@freyr.cba.ualr.edu> Cc: freebsd-questions@FreeBSD.ORG, owner-freebsd-questions@FreeBSD.ORG Subject: Re: sym driver and manufacturer don't agree on xfer rate of 53C896 controller Message-ID: <OFC7650239.20AD84F1-ON882569EF.001AB00A@wr.usgs.gov>
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Your right and your right.
I misinterpreted the man page, and after cvsuping latest src's I
recompiled the
kernel. Now everything is fine. dmesg reports 80 Meg transfers.
BTW, I am not using the ncr driver so it ignores
options SYM_SETUP_LP_PROBE_MAP=0x40
Once again all is right in jolly land.
"Joseph E. Royce" <joe@freyr.cba.ualr.edu>
Sent by: owner-freebsd-questions@FreeBSD.ORG
02/08/2001 08:10 AM
To: rsowders@usgs.gov
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: sym driver and manufacturer don't agree on xfer rate of 53C896
controller
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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