Add support for active width and speed for RoCE

Hi Doug,

This series from Noa replaces the current hard-coded active speed and width reported for RoCE in the mlx5 driver.

Two preliminary commits were needed for this change:
1. As a part of proper translation of the ib_port_spped enum, the IB_SPEED_HDR enum entry was added.
2. Set mlx5_query_roce_port's return value to void, since in case of an error, the properties reported back to the user are zeroed.

It is based on k.o/for-4.12 branch.

Thanks,
Noa and Leon.

Noa Osherovich (3):
IB/core: Add HDR speed enum
IB/mlx5: Set mlx5_query_roce_port's return value to void IB/mlx5: Add support for active_width and active_speed in RoCE

 drivers/infiniband/core/sysfs.c   |  4 ++
 drivers/infiniband/hw/mlx5/main.c | 89 +++++++++++++++++++++++++++++++++------
 include/rdma/ib_verbs.h           |  3 +-
 3 files changed, 82 insertions(+), 14 deletions(-)

--
2.12.2

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