Date: Mon, 3 Nov 1997 12:51:00 -0500 (EST) From: Neil Ludban <n-ludban@onu.edu> To: Red Barchetta <paradox@pegasus.rutgers.edu> Cc: freebsd-questions@freebsd.org Subject: Re: Diamond Fireport 40 SCSI controller Message-ID: <Pine.A32.3.96.971103120850.19297A-100000@austin.onu.edu> In-Reply-To: <3.0.3.32.19971103093243.008f8af0@128.6.10.45>
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Hi, I'm using one of these cards in my computer. You shouldn't have any problems as long as you're using or installing FreeBSD 2.2.5 or later. The chip used is actually a 53c875j, and for some unknown reason Symbios used a different ID for it. FreeBSD prior to 2.2.5 did not know about it, so the install floppy will not work. A few weeks ago (just before 2.2.5 came out) I was trying to get this to work and got some suggestions from the -hackers mailing list. These are modifications to the driver code in sys/pci/ncr.c, and require rebuilding the kernel. Simplest way (but then the plain 875 won't be detected): > Just replace the line reading: > #define NCR_875_ID (0x000f1000ul) > by: > #define NCR_875_ID (0x008f1000ul) Or, if you have some programming knowledge: > The 53c875j has a different ID than the 53c875. If you add that ID to > the appropriate switch statements in sys/pci/ncr.c, you'll be fine, > assuming you have some other way to do a 2.2.2 install. The latest code > has these defines: > #define NCR_875_ID (0x000f1000ul) > #define NCR_875_ID2 (0x008f1000ul) > so you should be able to work this out from that. These will allow you to use the 875j under an older version of FreeBSD if you have already installed on a different disk or have a different way to install (like borrowing a controller or moving the disk to a different computer). The ncr code got some improvements in 2.2.5 and supports both chips at full speed, so you may want to upgrade anyway. As an additional note, I haven't been able to find any drivers (from Diamond or Symbios) to support the 875j under Dos or NT 3.51. --Neil On Mon, 3 Nov 1997, Red Barchetta wrote: > I am considering buying a Diamond Fireport 40 for my PC for use with > Windows NT. However, if I am going to spend the money, I would also like > to be able to use the card I get under FreeBSD. The Fireport is not listed > (no Diamond card is) in the hardware section of the Handbook, but I was > wondering if anyone here might have any experience trying to get it to > work. FYI, the card uses the Symbios Logic's SYM53C875 Ultra SCSI I/O > processor. > > Any responses would be appreciated. Please cc: to me, as I am not subscribed. > > Thanks! > > Ernie Pistor > >
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