Mapping nvme-over-fabric packets using virtual output queues

A network switch comprising:

• a first input port to receive a first plurality of submission commands from a first remote host, the first plurality of submission commands based on Non Volatile Memory Express (NVMe) protocol;
• a first plurality of submission queues in which the first plurality of submission commands are enqueued, the first plurality of submission queues mapped, via an internal switch fabric, to a single egress output to provide data transfer operations with an integrated NVMe based storage device;
• a first completion queue and a second completion queue each associated with a respective one of the first plurality of submission queues, wherein a plurality of response commands are enqueued for transmission using NVMe protocol to the first remote host;
• and
• a NVMe storage driver to interface the first plurality of submission commands from the first plurality of submission queues via the internal switch fabric to the integrated NVMe based storage device, wherein control flow for the first plurality of submission queues includes a direct rate control (RC) feedback between the single egress output and the first plurality of submission queues.

A non-transitory computer readable medium comprising computer executable instructions stored thereon that, when executed by a processor in a network switch, cause the processor to:

• receive a first network transmission at a network infrastructure device provided from a remote application communicatively coupled via a network to the network infrastructure device, the first network transmission associated with a data transfer operation using Non Volatile Memory Express over fabric (NVMe-oF) protocol;
• enqueue the first network transmission to one or more first submission commands to provide to an internal switch fabric of the network infrastructure device, the one or more first submission commands associated with a plurality of respective submission queues of an NVMe storage driver interfacing with the internal switch fabric and an NVMe storage device, wherein the plurality of respective submission queues are included in a first virtual output queue and a second virtual output queue of the NVMe storage driver, the first virtual output queue being mapped to a first completion queue of the NVMe storage driver, and the second virtual output queue being mapped to a second completion queue of the NVMe storage driver;
• receive a second network transmission at the network infrastructure device, the second network transmission associated with a data transfer operation using NVMe-oF protocol;
• and
• control a flow of the second network transmission to be enqueued to the one or more submission commands using a direct rate control (RC) feedback signal between an egress queue congestion accounting and a source node receiving at least one of the first network transmission or the second network transmission.