Re: PCIE

[Manu Abraham <abraham.manu@gmail.com>]

David Miller wrote:
> From: Manu Abraham <abraham.manu@gmail.com>
> Date: Sat, 26 May 2007 19:03:12 +0400
> 
>> i presume then i shouldn't be using IRQF_SHARED, if using MSI.
> 
> That's actually a really good question.
> 
> It is likely architecture dependant whether the PCI controller wires
> unique MSI interrupts to shared cpu interrupt lines.
> 
> I can imagine many systems where the cpu simply doesn't have enough
> interrupt pins to uniquely identify every possible MSI interrupt
> source.
> 

Ok, that explains it a bit, but i am pulling out a bit of hair on the
other aspects i wrote in this thread, of course i am a bit new to PCIe
and hence all my questions/doubts. Hope someone can clear them.

Thanks,
Manu

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