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Re: PCI interrupt problem: e1000 & Super-Micro X6DVA motherboard

To: Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>
Subject: Re: PCI interrupt problem: e1000 & Super-Micro X6DVA motherboard
From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Date: Thu, 24 Mar 2005 00:18:35 -0800
Cc: "'netdev@xxxxxxxxxxx'" <netdev@xxxxxxxxxxx>, linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <20050324081003.GA23453@xxxxxxxxxxxxxxxxx>
Organization: Candela Technologies
References: <42421FF2.7050501@xxxxxxxxxxxxxxx> <20050324081003.GA23453@xxxxxxxxxxxxxxxxx>
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Lennert Buytenhek wrote:
On Wed, Mar 23, 2005 at 06:03:30PM -0800, Ben Greear wrote:


I have two 4-port e1000 NICs in the system, on a riser card.


How is the riser card wired?  F.e. does it have a single edge
connector, and provides two PCI slots, or does it have a tiny
additional edge connector that routes REQ#/GNT#/INTx from a
nearby PCI slot, etc.?

It has an edge connector, a full 64-bit ribbon connector, and
a 32-bit ribon connector.  As far as I can tell, there are no
shared signals.

It is made by Adex electronics, and is part number:  P/NPCITX3S1 884-335-185

I tried two different systems, and the problem is identical, so I believe
it is not a hardware manufacturing glitch.  It may be a hardware design
issue in either the riser or the motherboard.  Or a BIOS PCI irq mapping
problem...

Ben

--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com


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