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Date:      Thu, 9 Apr 1998 10:25:08 -0700 (PDT)
From:      Tamiji Homma <thomma@slip.net>
To:        freebsd-current@FreeBSD.ORG
Subject:   FAILSAFE and NCR
Message-ID:  <E0yNL4b-0002IT-00@slip-3>

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Hi,

I posted about SCSI disk performance difference(three times)
between 19980222-SNAP and 19971006-SNAP.  It turned out to be
the FAILSAFE option made the difference.  It slows SCSI disk
access down significantly.

Thanks to Geoff Buckingham and John Dyson, I could dig into
a little deeper. 

I noticed that MAX_START is now hardcoded to 32, which used 
to be (MAX_TARGET + 7 * SCSI_NCR_DFLT_TAGS) in sys/pci/ncr.c.

Is this going to be this way from now on?  Or is it anything
to do with CAM?  So that it will be resolved differently?

It is a little annoying everytime I have to patch sys/pci/ncr.c.

Thanks

Tammy

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