Date: Mon, 14 Apr 1997 13:19:16 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: vanmaren@fast.cs.utah.edu (Kevin Van Maren) Cc: terry@lambert.org, freebsd-smp@freebsd.org Subject: Re: Tyan ATX 1668 Message-ID: <199704142019.NAA19171@phaeton.artisoft.com> In-Reply-To: <199704141918.NAA13963@fast.cs.utah.edu> from "Kevin Van Maren" at Apr 14, 97 01:18:36 pm
next in thread | previous in thread | raw e-mail | index | archive | help
> >I stand corrected. > > > >You know, of course, that there isn't a 5th slot, right? It's a > >second fourth slot. > > Huh? > > There *are* *5* slots. > Look at http://www.tyan.com/html/s166{2,8}.html for a picture. The 4th and 5th slot are electrically equivalent. There are only 4 PCI interrupts, and a direct cascade mand 5 & 1 have the same ordering and a non-direct cascade meand that 4 & 5 have the same ordering; in the case of that particular motherboard, $ & 5 are electrically equivalent in all respects except bus arbitration (and that's irrelevant at the slot level, at least for PCI). > >It's probably more correct to claim that they don't have an entry > >for a fifth device... > > > > Here is `part' of a dmesg output (stripped out disks, etc) for > a S1662 motherboard. Only one processor right now, but I'm using > this one since it has 5 PCI cards in it (plus ISA video). [ ... ] > PCI Bus #0 has 5 slots: > 10: Pci bridge > 4: Network (de2,irq 11) > 5: Network (de3,irq 11, says 10) > 11: Mass Storage (ahc0,irq 5) > 12: Network (de0,irq 9) > 13: Mass Storage (de1,irq 10) > 14: Network (ahc1,irq 11) > > This is with FreeBSD 2.1.7.1; de2/de3 is a Zynx dual 10Mb ethernet > adapter. This is with the updated BIOS, right? The "5 slots" are a device iteration count, not a true slot count (as above). Regards, Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199704142019.NAA19171>