[openib-general] some OFED source/build questions

[Or Gerlitz]

Hi Vlad,

I have few questions on some issues i have run into while working with OFED-1.1-rc7
over RH4 U3. I did some reading before, so if its RTFM, please point me to the relevant doc...

1) backports patches

   Looking in ./SOURCES/openib-1.1/configure there is a case for each system per
   kernel version. When all the patches on this directory are applied on the
   sources when building on this system.

   Looking in the SOURCES/openib-1.1/kernel_patches/backport/2.6.9_U3
   there is only one patch that changes ipoib code and this patch does not
   touch the ipoib debugfs code or the code that calls to initialize it.

   So what's the trick? doing nm on the ipoib module i see there is
   no call to debugfs_create_dir...

   Is there any alternative to debugfs to get the ipoib path/mcast info on RH4 Ux systems?

2) OPENIB_PARAMS documentation

  Doing some probing, i undersrand that to set this or that option to the
  build i need to set this or that --with or --without directive to the
  SOURCES/openib-1.1/ofed_scripts/configure script and this is done by
  setting the OPENIB_PARAMS env var while running the install.sh script.

  Some of these  --with/out options which need to be documented somewhere
  are not, for example to set CONFIG_INFINIBAND_IPOIB_DEBUG i need to
  add --with-ipoib_debug-mod to the build, correct?

  Also, is there a way to see after building with which exact
  CONFIG_INFINIBAND_ directives OFED was built?

Or.