InfiniBand Network Architecture

Required Features

All protocol-aware IBA devices (i.e., devices other than repeaters) are required to implement the following attributes:

• ClassPortInfo. See Table 28-7 on page 794 and the description of ClassPortInfo in Table 35-4 on page 1025.

• PortCounters. This attribute contains a standard set of required event counters that are always running on each port.

• PortSamplesControl. A PerfSet(PortSamplesControl) is used to simultaneously:

  - Select a port on which to take samples.

  - Select one or more optional operational events on the selected port to be sampled.

  - Trigger a sampling session of the selected optional events on the selected port.

  An initial execution of a PerfGet(PortSamplesControl) returns the number and width of the available counters, ...