OFED v3.2 update

[Hans Petter Selasky]

Dear users of infiniband in FreeBSD:


Mellanox is working on a big infiniband update towards mellanox OFED 
v3.2 of the infiniband stack (ibcore), drivers (mlx4/mlx5) and libraries 
(librdma, libibverbs ...). Currently there are 10-patches in different 
areas of the FreeBSD kernel and userspace which you need to apply to 
11-current as of today to get a working GENERIC kernel.

Compile world and kernel like this after applying the patches below:

make buildkernel WITH_OFED=YES
make buildworld WITH_OFED=YES


https://reviews.freebsd.org/D5790
https://reviews.freebsd.org/D5791
https://reviews.freebsd.org/D5792
https://reviews.freebsd.org/D5793
https://reviews.freebsd.org/D5794
https://reviews.freebsd.org/D5795
https://reviews.freebsd.org/D5796
https://reviews.freebsd.org/D5797
https://reviews.freebsd.org/D5798
https://reviews.freebsd.org/D5799


The patches are work in progress, though at a level where basic 
infiniband is working with MLX5.


Known issues:
- LINT build is broken (Will be fixed before committing. Waiting for 
solution from Navdeep)
- Need to unload ipoib before mlx5ib.

--HPS