Problem with P2P PCI bridge in pSeries 630

Jake Moilanen moilanen at austin.ibm.com
Tue Sep 30 06:26:01 EST 2003


I believe you have to enable a linux compatible boot as well.  It's
somewhere in the Service Processor menues.

Jake

On Mon, 29 Sep 2003, Roland Dreier wrote:

>
>     linas> Before you bang your head too much on the PCI code, please
>     linas> make sure that you have the latest firmware installed (and
>     linas> install it if you don't).
>
>     linas> The OF firmware is involved in the PCI setup, and there
>     linas> have been some bugs fixed having to do with PCI bridges.
>     linas> These are 'recent' bugs, fixed about 6 months ago.
>
> Thanks for the advice.  I updated my firmware from 3R030528 to
> 3R030718, but unfortunately the behavior is exactly the same.  I get:
>
>     EEH: PCI Enhanced I/O Error Handling Enabled
>     PCI: 0062:00.0 pci15b3,5a44 (<unknown type>) has bad status from firmware! (fail-perm)<4>write_OF_bars 0062:00.0 pci15b3,5a44 (<unknown type>): read BAR0 failed
>     write_OF_bars 0062:00.0 pci15b3,5a44 (<unknown type>): read BAR1 failed
>
> in the kernel log, and lspci doesn't see the device behind the bridge.
>
>     linas> There were some bugs when the EEH code walked bridges.  A
>     linas> firmware upgrade should fix it; if not then you've got a
>     linas> real problem.
>
> I guess I have a real problem :(
>
>  - Roland
>
>
>
>

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