Date: Mon, 28 Oct 96 19:08:18 EST From: eischen@vigrid.com (Daniel Eischen) To: freebsd-hackers@freefall.freebsd.org, ponds!rivers@dg-rtp.dg.com Subject: Re: AHA2940UW differences with 2.1.5-STABLE. Message-ID: <9610290008.AA06252@pcnet1.pcnet.com>
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> I've just installed 2.1.5-STABLE (by grabbing the sys > directory from freefall.cdrom.com and rebuilding a kernel) > on a machine with an AHA 2940UW. > > I noticed a lit of changes to the aic7xxx code since 2.1.5R. > > I've also noticed a difference in how the two operate. I don't > know if this is good, or bad, just different. > > 2.1.5R reports my SCSI devices as (from an older /var/log/messages, this is > going to be "wide" - so expand your window :-) ): [...] > Oct 20 21:33:41 lakes /kernel: (ahc0:1:0): "MICROP 1548-15MZ1077802 HZ2P" type 0 fixed SCSI 1 > Oct 20 21:33:41 lakes /kernel: sd1(ahc0:1:0): Direct-Access 1635MB (3349512 512 byte sectors) > Oct 20 21:33:41 lakes /kernel: ahc0:A:2: refuses WIDE negotiation. Using 8bit transfers > Oct 20 21:33:42 lakes /kernel: ahc0:A:2: refuses syncronous negotiation. Using asyncronous transfers > Oct 20 21:33:42 lakes /kernel: (ahc0:2:0): "WANGTEK 5150ES SCSI FA23 08" type 1 removable SCSI 1 > You'll notice here that the "MICROP 1548-15MZ1077802 HZ2P" does not > negotiate WIDE data paths. This is correct, as this is an ancient > SCSI I drive (from about 1989.) > > My question is - is this part of the improvements in 2.1.5-STABLE? If you have enable Wide negotiation set in SCSI Select Utilities, then it will attempt wide negotiation. Look at your tape drive above; you must have wide data transfers set in SCSI Select for the tape drive too. If you disable wide data transfers in SCSI Select Utilities for the Micropolis and the Wangetk, then you can get rid of both messages ;-) Dan Eischen eischen@pcnet.com
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