RTEMS and PCI Express

Till Straumann strauman at slac.stanford.edu
Wed Nov 14 20:42:37 UTC 2012

I think the short answer is: yes as long as it behaves as a legacy PCI 
device (no msi etc)
and the bios/firmware takes care of configuring the pci bus(es) - this 
also applies to
legacy PCI.
In this case PCIe is basically just pci.

I have used a i82573 PCIe ethernet controller on a ampro-820 read-board, 
an embedded PC (-> bios configures the PCI bus including PCIe) under RTEMS.

I havent' answered (or even looked closely) at your email because my 
main focus
- alas - is not RTEMS anymore.

- Till

On 11/14/2012 01:18 PM, SAeeD wrote:
> Any answer? I think this my fifth unanswered email. I dunno I'm wrong 
> at asking my question in the correct way, I'm wrong at choosing the 
> proper mailing list for asking the question, there is some policy in 
> answering the question, or what. But I appreciate if someone has any 
> idea that what is wrong that I've 5 consecutive unanswered emails. I 
> hope someone clarify it for me.
> Thanks,
> SAeeD
> On Tue, Nov 13, 2012 at 3:59 PM, SAeeD <salpha.2004 at gmail.com 
> <mailto:salpha.2004 at gmail.com>> wrote:
>     Hi every body,
>     Does RTEMS support devices on PCI Express slot? In particular
>     Ethernet Controllers.
>     I mean, is there any driver for Ethernet Controllers on PCI
>     Express? Is there necessary infrastructure in the OS core?
>     Thanks,
>     SAeeD

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