RE: [PATCH for-next 09/10] IB/mlx4: Add timestamp_mask and hca_core_clock to query_device

Hefty, Sean
2015-06-01T14:54:14Z

> We want to have a time stamp when the action is complete and the data is
> available to the application or the send action is complete and the CQ
> entry can be reused.

This is what polling the completion from the CQ tells you, independent of there being a time stamp.