Date: Wed, 24 Jun 1998 18:19:55 +0300 (EET DST) From: Vallo Kallaste <vallo@matti.ee> To: Robert Deuerling <deuerl@bugsy.indra.de> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: ncr scsi controller Message-ID: <Pine.GSO.3.96.980624180833.12298A-100000@solaris.matti.ee> In-Reply-To: <199806240728.HAA22766@bugsy.indra.de>
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On Wed, 24 Jun 1998, Robert Deuerling wrote: > Hi, > > are there any "hidden" options to speedup / finetune the ncr > scsi crontroller ? > > ncr0 <ncr 53c875 fast20 wide scsi> rev 4 int a irq 11 on pci1:4:0 > (ncr0:1:0): WIDE SCSI (16 bit) enabled(ncr0:1:0): 10.0 MB/s (200 ns, offset 15) > (ncr0:1:0): "COMPAQ ST34572W 0892" type 0 fixed SCSI 2 *** Look at the end of /sys/i386/conf/LINT file. There are some SCSI_NCR_ options. Personally I use only SCSI_NCR_DFLT_TAGS=8 (max number of tags was 16 as I remember). For the meaning of these tags search /sys/pci/ncr.c file, it's a very well commented one. Vallo Kallaste vallo@matti.ee To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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