[openib-general] PPC64 2.6 kernel support

Sun Mar 28 01:21:34 PST 2004

Hi,

Do you have the port of the VAPI driver we did for the Darwin on G5? 
If not then please contact Mellanox and we will send you this (was based on
release 1.0.0 of VAPI).
Having this code reference can help you in the specific issues of G5 machine
we already solved.

Tziporet

-----Original Message-----
From: Troy Benjegerdes [mailto:hozer at hozed.org]
Sent: Friday, March 26, 2004 7:41 PM
To: openib-general at openib.org
Subject: Re: [openib-general] PPC64 2.6 kernel support

On Fri, Mar 26, 2004 at 09:30:31AM -0800, Roland Dreier wrote:
>     Troy> So, the question is, is there *anything* available now that
>     Troy> works on linux-2.6.3 on any platform??
> 
> Yes, the "infiniband-kernel" package available from openib.org works
> on linux-2.6.3 on i386.  The build system is not too bad -- you just
> drop an drivers/infiniband directory into your kernel, apply a couple
> of tiny patches to get kbuild to see the infiniband drivers, and build
> your modules as usual.
> 
>     Troy> I'm willing to do the work to get it to build on PPC64, but
>     Troy> I need something that I can successfully build and run on
>     Troy> linux-2.6.3 x86, and is 'open source'.
> 
> I'd be happy to help get ppc64 working.  Unfortunately I have no
> access to G5 hardware right now, but I can at least try to figure out
> any problems you run into.
> 
> I do have access to a pSeries machine, so I can at least get the tree
> to build for ppc64.  (There are other problems on pSeries, since the
> Mellanox driver doesn't use the PCI DMA API, while such use is
> absolutely required on pSeries)  Given that the IB HCA is 64-bit PCI
> capable, can we get away without using the IOMMU on PPC G5?

I guess we're stuck with 2GB of memory for now then.. my understanding
is the mac G5 doesn't support 64 bit pci addressing.

Oh yeah.. I'll probably need to run a subnet manager on a host.. what's
the status of opensm? (I could run opensm on an x86 machine if need be)

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