[openib-general] abi_version file not created on SLES9SP3 or RHEL4U4

[Steve Wise]

On Fri, 2007-01-19 at 10:48 -0800, Sean Hefty wrote:
> >I'm testing the latest ofed_1_2 code on RHEL4U4 and SLES9SP3.  After
> >loading the rdma_ucm module, there isn't a abi_version file installed
> >in /sys/class/misc/rdma_cm.  There is no error logged from the ucma so I
> >_think_ it created the file ok in ucma_init().
> >
> >Have you seen this?
> 
> I think the issue is that there's not a /sys/class/misc, but the kernels have
> been patched enough to appear that things work.  Woody likely has more details
> on this, as I know this is one of the areas that he has to modify as part of
> creating his backport patches.
> 
> The librdmacm works around this by looking in /sys/class/infiniband_ucma as
> well, and if that fails, just assumes the latest version of the ABI.  The
> backport patches create the abi file under infiniband_ucma.
> 
> - Sean

There's /sys/class/misc/rdma_cm/dev file but no abi_version, and there
is no /sys/class/infiniband_ucma directory.  I didn't see any backport
patches that affect this, but maybe I missed it.