Patent ID: 8649286

Claim:
A fabric control circuit comprising: a register programmable with a quality of service (QoS) parameter; and a multiplexor coupled to the register and coupled to receive a portion of a first interface on which the QoS parameter is transmitted, wherein a first transaction is transmitted on the first interface to a first port on a fabric interface circuit, and wherein an output of the multiplexor is coupled to the portion of the first port on which the QoS parameter is received by the first port, and wherein a remaining portion of the first interface except for the portion of the first interface on which the QoS parameter is transmitted is coupled directly to the first port, and wherein the fabric control circuit is configured to select, through the multiplexor, between the QoS parameter in the register and the QoS parameter received on the first portion of the first interface to transmit as the QoS parameter to the first port during a time that the remaining portion of the first transaction is being transmitted directly to the first port from a source of the first transaction.