[v1,rdma-next,0/2] Dynamic rdma link creation

Message

Steve Wise Sept. 28, 2018, 3:43 p.m. UTC

This series enables creating soft rdma links dynamically using netlink
messages.  The user 'rdma' command [1] will be enhanced to send these new
messages.

Note there is at least one outstanding issue:  the rdma-core requires
RXE links to be named "rxe*" or it fails to associate an rxe uverbs
driver with the rxe provider.  This is TBD.

[1] rdma tool support (work-in-progess):
https://github.com/larrystevenwise/iproute2/tree/wip/newlink

Changes since RFC:

- rebased on top of leon's and jason's device name work
- request module load if the link ops aren't found
- detect duplicate link ops adds
- const char * changes
- use the RDMA_NLDEV open enum values


Steve Wise (2):
  RDMA/Core: add RDMA_NLDEV_CMD_NEWLINK/DELLLINK support
  rdma_rxe: use netlink messages to add/delete links

 drivers/infiniband/core/nldev.c       | 128 ++++++++++++++++++++++++++++++++++
 drivers/infiniband/sw/rxe/rxe.c       |  67 +++++++++++++++++-
 drivers/infiniband/sw/rxe/rxe.h       |   2 +-
 drivers/infiniband/sw/rxe/rxe_net.c   |   4 +-
 drivers/infiniband/sw/rxe/rxe_net.h   |   2 +-
 drivers/infiniband/sw/rxe/rxe_sysfs.c |   6 +-
 drivers/infiniband/sw/rxe/rxe_verbs.c |   4 +-
 drivers/infiniband/sw/rxe/rxe_verbs.h |   2 +-
 include/rdma/rdma_netlink.h           |  13 ++++
 include/uapi/rdma/rdma_netlink.h      |   9 ++-
 10 files changed, 224 insertions(+), 13 deletions(-)