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. Changes in v3: - Fix lockdep warning in ib_device_get_netdev by dropping optimization part from it - Extend event info to include device names - Instead of disregarding unknown events, report them to userspace - Remove fill_mon_register and replace with fill_nldev_handle to fill netlink messages for register events Changes in v2: - Fix compilation issues with forward declaration of ib_device - Add missing setting of return code in error flow Chiara Meiohas (5): RDMA/mlx5: Initialize phys_port_cnt earlier in RDMA device creation RDMA/device: Remove optimization in ib_device_get_netdev() 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 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 | 51 ++++- drivers/infiniband/core/netlink.c | 1 + drivers/infiniband/core/nldev.c | 130 ++++++++++++ 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 | 12 ++ include/uapi/rdma/rdma_netlink.h | 16 ++ 12 files changed, 399 insertions(+), 114 deletions(-) -- 2.17.2
