[rdma-next,0/7] Support RDMA events monitoring through

Message

Michael Guralnik Aug. 21, 2024, 5:10 a.m. UTC

This series consists of multiple parts that collectively offer a method
to monitor RDMA events from userspace.
Using netlink, users will be able to monitor their IB device events and
changes such as device register, device unregister and netdev
attachment.

The first 2 patches contain fixes in mlx5 lag code that are required for
accurate event reporting in case of a lag bond.

Patch #3 initializes phys_port_cnt early in device probe to allow the
IB-to-netdev mapping API to work properly.

Patches #4,#5 modify and export IB-to-netdev mapping API, making it accessible
to all vendors who wish to rely on it for associating their IB device with
a netdevice.

Patches #6,#7 add the netlink support for reporting IB device events to
userspace.

Chiara Meiohas (4):
  RDMA/mlx5: Initialize phys_port_cnt earlier in RDMA device creation
  RDMA/mlx5: Use IB set_netdev and get_netdev functions
  RDMA/nldev: Add support for RDMA monitoring
  RDMA/nldev: Expose whether RDMA monitoring is supported

Maher Sanalla (1):
  RDMA/device: Clear netdev mapping in ib_device_get_netdev on
    unregistration

Mark Bloch (2):
  RDMA/mlx5: Check RoCE LAG status before getting netdev
  RDMA/mlx5: Obtain upper net device only when needed

 drivers/infiniband/core/device.c              |  43 ++++
 drivers/infiniband/core/netlink.c             |   1 +
 drivers/infiniband/core/nldev.c               | 123 +++++++++++
 drivers/infiniband/hw/mlx5/ib_rep.c           |  22 +-
 drivers/infiniband/hw/mlx5/main.c             | 197 +++++++++++++-----
 drivers/infiniband/hw/mlx5/mlx5_ib.h          |   3 +-
 .../net/ethernet/mellanox/mlx5/core/lag/lag.c |  76 +++----
 include/linux/mlx5/device.h                   |   1 +
 include/linux/mlx5/driver.h                   |   2 +-
 include/rdma/ib_verbs.h                       |   2 +
 include/rdma/rdma_netlink.h                   |  10 +
 include/uapi/rdma/rdma_netlink.h              |  16 ++
 12 files changed, 391 insertions(+), 105 deletions(-)