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Re: arch/mips/au1000/common/irq.c

To: Dan Malek <dan@embeddededge.com>
Subject: Re: arch/mips/au1000/common/irq.c
From: Jeff Baitis <baitisj@evolution.com>
Date: Thu, 13 Mar 2003 14:13:31 -0800
Cc: Pete Popov <ppopov@mvista.com>, linux-mips@linux-mips.org
In-reply-to: <3E70D306.5090608@embeddededge.com>; from dan@embeddededge.com on Thu, Mar 13, 2003 at 01:50:46PM -0500
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References: <20030313104704.V20129@luca.pas.lab> <3E70D306.5090608@embeddededge.com>
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Dan:

I just verified that I get an IRQ storm when I plug a 3.3-volt based SMC
EPIC/100 network card into the PCI slot of the Au1500. Before I bring the
interface up, I notice that the driver tries to allocate IRQ 1 (INTA). This is
the same IRQ that the ill-fated CardBus bridge attempts to use. ;)

As soon as I bring the SMC interface up using ifconfig (and have the interface
plugged into an active Ethernet network), the IRQ storm ensues.

I'll try Hartvig's patch, look over the irq.c levels, and see how everything
fares.

Thanks all!

Regards,

Jeff


On Thu, Mar 13, 2003 at 01:50:46PM -0500, Dan Malek wrote:
> Jeff Baitis wrote:
> 
> > Pete:
> > 
> > I've got a question concerning irq.c. In intc0_req0_irqdispatch() (linux_2_4
> > branch) on lines 545 thru 552, the code reads:
> 
> I'm hacking these functions to use 'clz' and for other updates, so
> the code will be changing soon, anyway :-)  Comment on the next version :-)
> 
> Thanks.
> 
> 
>       -- Dan
> 
> 
> 

-- 
         Jeffrey Baitis - Associate Software Engineer

                    Evolution Robotics, Inc.
                     130 West Union Street
                       Pasadena CA 91103

 tel: 626.535.2776  |  fax: 626.535.2777  |  baitisj@evolution.com 


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