Date: Mon, 10 Dec 2001 22:37:52 -0800 From: Terry Lambert <tlambert2@mindspring.com> To: Bernd Walter <ticso@cicely8.cicely.de> Cc: Danny Braniss <danny@cs.huji.ac.il>, Mike Smith <msmith@FreeBSD.ORG>, freebsd-hackers@FreeBSD.ORG Subject: Re: irq Message-ID: <3C15A9C0.4E2901C3@mindspring.com> References: <msmith@freebsd.org> <200112101752.fBAHqMV01179@mass.dis.org> <E16DWFq-0009U1-00@pampa.cs.huji.ac.il> <20011210215905.E11774@cicely8.cicely.de>
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Bernd Walter wrote: > A PCI slot has 4 irq lines named INTA to INTD. Yes. > On PCs all slots share the same 4 physical irqs and the lines are > hardwired on the board in alternating order to each slot. On newer motherboards, post the Intel SErver Products Division PCI motherboards, from a year or so after initial release. > If you want cards not to share irqs you have to swap slots until you > get what you want - you can't enforce it with software. You can do it in software, but we don't, so moving the cards around is a valid workaround. PS: Slot 5, if there is one, is generally INT A, as well. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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