Merge branch 'rdma-res-tracking' into iproute2-next

Merge branch 'rdma-res-tracking' into iproute2-next

Steve Wise  says:

====================

This series enhances the iproute2 rdma tool to include dumping of
connection manager id (cm_id), completion queue (cq), memory region (mr),
and protection domain (pd) rdma resources.  It is the user-space part of
the kernel resource tracking series merged into rdma-next for 4.17 [1]
and [2].

Changes since v3:
- replaced rdma_cma.h inclusion with UAPI rdma_user_cm.h
- display only device names instead of device/port for cq, mr, and pd
since they are not associated with a specific port.

Changes since v2:
- pull in rdma-core:include/rdma/rdma_cma.h
- 80 column reformat
- add reviewed-by tags

Changes since v1/RFC:
- removed RFC tag
- initialize rd properly to avoid passing a garbage port number
- revert accidental change to qp_valid_filters
- removed cm_id dev/network/transport types
- cm_id ip addrs now passed up as __kernel_sockaddr_storage
- cm_id ip address ports printed as "address:port" strings
- only parse/display memory keys and iova if available
- filter on "users" for cqs and pds
- fixed memory leaks
- removed PD_FLAGS attribute
- filter on "mrlen" for mrs
- filter on "poll-ctx" for cqs
- don't require addrs or qp_type for parsing cm_ids
- only filter optional attrs if they are present
- remove PGSIZE MR attr to match kernel

[1] https://www.spinics.net/lists/linux-rdma/msg61720.html
[2] https://www.spinics.net/lists/linux-rdma/msg62979.html
    https://www.spinics.net/lists/linux-rdma/msg62980.html

====================

Signed-off-by: David Ahern <dsahern@gmail.com>