The Quality of Service (QoS) tab of the Customize IP dialog box is shown
in the following figure. This tab allows the configuration of the quality of service
properties of every stream path defined in the
The left column of the QoS tab shows a tree structure of the connectivity
defined in the Connectivity tab. The top of each tree (left aligned port names) are the
NoC ingress ports; in the figure
S00_AXIS. Shown under each ingress port are the
associated rows for each connected egress port.
The second column defines the write traffic class. The possible values are ISOCHRONOUS and BEST_EFFORT (default). The traffic class applies to all connections originating from the given ingress port.
The third column indicates whether this NoC instance owns the QoS setting for a given path. A NoC path may go through multiple NoC instances using INI. QoS settings are taken
from the NoC instance that owns the QoS
and path. QoS is ignored when a NoC
instance does not own the path. Ownership is at the transition from an NMU or
strategy=Driver to an NSU or
strategy=Load. A value of 'pending' means the ownership will be calculated
during validate, or by clicking the Run NoC DRCs
button above. For a value of 'error', validate or click the Run NoC DRCs button above to see error details in the Tcl Console and
The fourth column defines the Write Bandwidth expressed in MB/s or Gb/s. Allowed values range from 0 (no Write traffic is accepted) to the maximum data bandwidth of the NoC physical channel.
The QoS tab Advanced check box enables additional columns that are described in QoS Tab.