New input plugin: InfiniBand Hardware Counters (RDAM diagnostics)

[izekr]

Use Case

I plan to use this feature to monitor InfiniBand hardware counters, which will help in diagnosing network issues and optimizing performance.

Expected behavior

When using this plugin, I expect to see detailed InfiniBand hardware counters, which will be useful for network diagnostics and performance monitoring.

Actual behavior

Today,
telegraf does not have support for collecting InfiniBand HW statistics (RDMA diagnostics)

Additional info

For more information on the InfiniBand hardware counters please visit:
Understanding mlx5 Linux Counters and Status Parameters