Adapt ko2iblnd to latest RDMA changes (LU-8874)

[LU-10915] Draining QP Created: 13/Apr/18  Updated: 28/Apr/20

Status: Open
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Technical task Priority: Minor
Reporter: Amir Shehata (Inactive) Assignee: Amir Shehata (Inactive)
Resolution: Unresolved Votes: 0
Labels: None

Rank (Obsolete): 9223372036854775807

 Description   

Currently o2iblnd waits until all the WR have completed before destroying the connection.

However, there is no time limit to the completion operation so we can have indefinite waits.

Adopt a new draining QP mechanism introduced by MLX to handle that situation.

Refer to:
https://wiki.whamcloud.com/display/LNet/Adapt+to+latest+RDMA+changes


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