[LU-5953] lustre[-dkms] needs to automatically account for OFED

Related — Thu, 6 Oct 2016 14:24:35 +0000

Currently our lustre-dkms package does not build against any installed OFED.

Background

Outside of the DKMS world, if a user wants to build Lustre with OFED they first build and install OFED and then using Lustre's configure script, point the Lustre build at the built and installed OFED using the --with-o2ib switch, giving it the path to the OFED installation as an argument.

Problem

This doesn't work with lustre-dkms because there is no way for the user to provide that OFED path to DKMS built (Lustre) modules.

Solution

The nice part is that this solution is general and will be of benefit to users who compile from source in the traditional manner as well as benefiting lustre-dkms users.

The solution that I propose is that the code we currently have to handle --with-o2ib [yes|no|<path_to_ofed>] should look for the OFED installation in it's expected installed location (i.e. when following the official upstream instructions on how to build and install OFED) when given simply a yes option and that OFED should be preferred over in-kernel IB if the argument is simply yes and OFED is installed.

Whamcloud Community JIRA

[LU-5953] lustre[-dkms] needs to automatically account for OFED

Background

Problem

Solution