US Patent 11675713 Avoiding deadlock with a fabric having multiple systems on chip

Devices and techniques to avoid deadlock in a multi-SOC fabric are described herein. An apparatus comprises a network on chip (NOC) interface to receive on a first virtual channel, from a processor, a memory request for a memory controller; a fabric interface configured to include the first virtual channel and a second virtual channel, connected to a scale fabric; and circuitry to: transmit the memory request toward the memory controller on the first virtual channel via the scale fabric; receive a response from the memory controller over the second virtual channel via the scale fabric; and relay the response to the processor over the second virtual channel.