Date: Wed, 29 Jan 1997 11:21:10 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: ;;;;@x14.mi.uni-koeln.de;;; Cc: terry@lambert.org, dara@salk.edu, current@freebsd.org Subject: Re: installing network cards Message-ID: <199701291821.LAA12334@phaeton.artisoft.com> In-Reply-To: <Mutt.19970129192846.se@x14.mi.uni-koeln.de> from ";;@x14.mi.uni-koeln.de" at Jan 29, 97 07:28:46 pm
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> On Jan 29, terry@lambert.org (Terry Lambert) wrote: > > Is your SCSI an Adaptec 3940? They take 2 PCI interrupts. Try > > reordering the cards, in any case. If you can, avoid putting a card > > to either side of the SCSI card (other than the video card). If your > > video card issues vertical retrace interrupts, jumper them off. Note > > that slot one and slot four are adjacent for the purposes of interrupt > > stealing. > > Ahemm ??? > > We support PCI interrupt sharing for so long, already, > that I forgot when it was added :) > > If you can't freely assign cards to your slots, then > your system is severly broken. He didn't say what version he was running; it may not support it. In addition, there has been traffic on the SMP list to the effect that an AHA3940 PCI interrupt sharing fails to operate for the 'B' channel of the device. Finally, I have no way of knowing the PCI BIOS rev on his machine, or of the machine itself, if there are electrical differences. It may in fact be only a 1.0 box (which did not handle resource sharing correctly -- see the archive for BusLogic controller workarounds for motherboards from the Intel OEM products division). In any case, card reordering fixed the PCI problems on SMP-current as of last wee (is the SMP list archived? If so, look there; otherwise I may have saved the messages, and can forward them if you are interested). Regards, Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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