Remote direct memory access (rdma) multipath

A first node comprising:

• memory to store a multipath context and a plurality of queue pairs assigned to the multipath context;
• and
• a network interface controller coupled to the memory, the network interface controller to:
• send a first burst of data of a transport flow directed to a second node via a first network path between the first node and the second node, the transport flow using a network protocol that allows remote direct memory access (RDMA);
• determine, using one or more parameters, that a second burst of data of the transport flow is to be sent on a different network path than the first network path;
• identify, using the multipath context, a second network path between the first node and the second node, the multipath context storing a first weight value associated with a first network routing identifier corresponding to the first network path and a second weight value associated with a second network routing identifier corresponding to the second network path;
• assign the second network routing identifier to one or more packets of the second burst of data;
• and
• send the second burst of data to the second node via the second network path.

A method comprising:

• sending, by a network interface controller of a first node, a first burst of data of a transport flow directed to a second node via a first network path between the first node and the second node, the transport flow using a network protocol that allows remote direct memory access (RDMA);
• determining, by the network interface controller using one or more parameters, that a second burst of data of the transport flow is to be sent on a different network path than the first network path;
• identifying, by the network interface controller using a multipath context, a second network path between the first node and the second node, the multipath context storing a first state associated with a first network routing identifier corresponding to the first network path and a second state associated with a second network routing identifier corresponding to the second network path;
• assigning, by the network interface controller, the second network routing identifier to one or more packets of the second burst of data;
• and
• sending, by the first node, the second burst of data to the second node via the second network path.