[ofa-general] libibcm compatability problem

[Steven Wooding]

Hi Sean,

I tried to compile the latest libibcm library, but have got stuck on
./configure with the cpp failing it's sanity check. I'm on Scientific Linux
4.3 (aka RHEL 4.3) and have gcc installed.

Could I try and use the OFED 1.1 kernel drivers in 2.6.20 instead of the
in-built kernel drivers? Or would it be better to install the latest
subversion snapshot of the userspace libraries?

It's a very strange installation we've ended up with from our supplier. They
are using the latest kernel ib drivers whilst using OFED 1.0 userspace
libraries. It seems that libibcm is the only library that has a
compatibility problem.

Finally, how much effort do you think it would take to convert a program
that uses libibcm to librdmacm?

Thanks very much for your advice

Cheers,

Steve.

On 17/05/07, Sean Hefty <mshefty at ichips.intel.com> wrote:
>
> > I'm using a 2.6.20.1 <http://2.6.20.1> kernel with OFED 1.1. I get the
> > following message when running my application:
> >
> > "libibcm: Kernel ABi version 5 doesn't match library version 4".
> >
> > Could someone tell me what version of the library in terms of OFED
> > release I should be using?
>
> I'm not sure if OFED 1.1 supports 2.6.20.  But you can try using the
> latest libibcm from here:
>
>         http://www.openfabrics.org/~shefty/libibcm-1.0.tar.gz
>
> You can also look into using the librdmacm as an alternative, which
> supports other RDMA transports.
>
> - Sean
>
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