Updates from version 19.2
- Backport fixes:
- ibacm: fix double hint.ai_family assignment in ib_acm_connect_open()
- ibacm: acme does not work if server_mode != unix
- ibacm: ib_acm_connect() is doing too much
- verbs: The ibv_xsrq_pingpong "-c" option is broken
- mlx5: Fix masking service level in mlx5_create_ah
- cmake: Explicitly convert build type to be STRING
- libhns: Bugfix for filtering zero length sge
- buildlib: Ensure stanza is properly sorted
- mlx4: Allow loopback when using raw Ethernet QP
- travis: Change SuSE package target due to Travis CI failures
- cbuild: fix tumbleweed docker image
- verbs: Avoid inline send when using device memory in rc_pingpong
- mlx5: Use copy loop to read from device memory
- libhns: Bugfix for using buffer length
- mlx5: Fix incorrect error handling when SQ wqe count is 0