Class-based queueing for scalable multi-tenant RDMA traffic

A networking device comprising:

• memory, the memory storing a plurality of queues;
• and
• processing circuitry coupled with the memory, the processing circuitry to:
• receive a first Remote Direct Memory Access (RDMA) packet having a first quality-of-service (QoS) data field and a first virtual local area network (VLAN) identifier, the first VLAN identifier indicating a first VLAN;
• based on a quality-of-service value of the first QoS data field that indicates a class of service for the first RDMA packet, queue the first RDMA packet in a first RDMA queue of the plurality of queues;
• receive a second RDMA packet having a second QoS data field and a second VLAN identifier, the second VLAN identifier indicating a second VLAN;
• based on a quality-of-service value of the second QoS data field that indicates a class of service for the second RDMA packet, queue the second RDMA packet in a second RDMA queue of the plurality of the queues, the second RDMA queue being different than the first RDMA queue;
• receive a third RDMA packet having a third QoS data field and a third VLAN identifier, the third VLAN identifier indicating a third VLAN that is different than the first VLAN;
• and
• based on a quality-of-service value of the third QoS data field that indicates a class of service for the third RDMA packet being the same as the quality-of-service value of the first QoS data field that indicates the class of service for the first RDMA packet, queue the third RDMA packet in the first RDMA queue.

A non-transitory computer-readable medium storing a plurality of instructions executable by one or more processors, the plurality of instructions comprising instructions that when executed by the one or more processors cause the one or more processors to:

• receive a first RDMA packet having a first quality-of-service (QoS) data field and a first virtual local area network (VLAN) identifier, the first VLAN identifier indicating a first VLAN;
• based on a quality-of-service value of the first QoS data field that indicates a class of service for the first RDMA packet, queue the first RDMA packet in a first RDMA queue of a plurality of queues;
• receive a second RDMA packet having a second QoS data field and a second VLAN identifier, the second VLAN identifier indicating a second VLAN;
• based on a quality-of-service value of the second QoS data field that indicates a class of service for the second RDMA packet, queue the second RDMA packet in a second RDMA queue of the plurality of the queues, the second RDMA queue being different than the first RDMA queue;
• receive a third RDMA packet having a third QoS data field and a third VLAN identifier, the third VLAN identifier indicating a third VLAN that is different than the first VLAN;
• and
• based on a quality-of-service value of the third QoS data field that indicates a class of service for the third RDMA packet being the same as the quality-of-service value of the first QoS data field that indicates the class of service for the first RDMA packet, queue the third RDMA packet in the first RDMA queue.