Techniques are disclosed for processing flows by a smart network interface card (smartNIC) based on modifying a packet. In one example, a smartNIC accelerator receives a packet from a first port of the smartNIC, the first port being connected to a splitter device that splits a first data path into a second data path and a third data path, and the packet arriving at the first port via the second data path. The accelerator modifies the packet to indicate that the packet arrived at the first port via the second data path. The accelerator inserts the modified packet into a queue that is associated with both the second data path and the third data path. A programming data plane of the smartNIC receives and then processes the modified packet based on determining that the packet arrived at the first port via the second data path.

A stateful service processing method and apparatus are provided, related to the field of communication technologies. The method includes: preprocessing a received first packet to obtain a coalescing message of the first packet; coalescing the first packet into a first queue based on the coalescing message of the first packet, where the first queue is used to coalesce packets of a first connection to which the first packet belongs, and the first connection is a connection in which a stateful service is located; when a preset condition is met, processing, based on a context of the first connection, a plurality of packets coalesced in the first queue to obtain a second packet, where the context of the first connection is an updated context obtained after a previous second packet of the first connection is obtained; and transmitting the second packet to the host.

A stateful service processing method and apparatus are provided, related to the field of communication technologies. The method includes: preprocessing a received first packet to obtain a coalescing message of the first packet; coalescing the first packet into a first queue based on the coalescing message of the first packet, where the first queue is used to coalesce packets of a first connection to which the first packet belongs, and the first connection is a connection in which a stateful service is located; when a preset condition is met, processing, based on a context of the first connection, a plurality of packets coalesced in the first queue to obtain a second packet, where the context of the first connection is an updated context obtained after a previous second packet of the first connection is obtained; and transmitting the second packet to the host.

A network device, associated with peer network devices, may receive policy information for a protocol; and compute a first update message based on information regarding a route associated with the policy information. The network device may determine that an upper utilization threshold for one or more of peer queues, associated with the peer network devices, is not satisfied; and write the first update message to the peer queues based on determining that the upper utilization threshold is not satisfied. The network device may compute a second update message based on the information regarding the route; determine that the upper utilization threshold for one or more of the peer queues is satisfied; and pause writing the second update message to the peer queues based on the upper utilization threshold being satisfied. The network device may permit the peer network devices to obtain data from corresponding ones of the peer queues.

A system for facilitating efficient command management in a network interface controller (NIC) is provided. During operation, the system can determine, at the NIC, a trigger condition and a location in a command queue for a set of commands corresponding to the trigger condition. The command queue can be external to the NIC. The location can correspond to an end of the set of commands in the command queue. The system can then determine, at the NIC, whether the trigger condition has been satisfied. If the trigger condition is satisfied, the system can fetch a respective command of the set of commands from the command queue and issuing the command from the NIC until the location is reached, thereby bypassing locally storing the set of commands prior to the trigger condition being satisfied.

A system for facilitating efficient command management in a network interface controller (NIC) is provided. During operation, the system can determine, at the NIC, a trigger condition and a location in a command queue for a set of commands corresponding to the trigger condition. The command queue can be external to the NIC. The location can correspond to an end of the set of commands in the command queue. The system can then determine, at the NIC, whether the trigger condition has been satisfied. If the trigger condition is satisfied, the system can fetch a respective command of the set of commands from the command queue and issuing the command from the NIC until the location is reached, thereby bypassing locally storing the set of commands prior to the trigger condition being satisfied.

This application provides a buffer determining method and apparatus, to resolve a problem of how a terminal device on a sidelink calculates a buffer size. The method includes: A terminal device determines a sidelink data rate, and determines a buffer size based on the sidelink data rate. In this embodiment of this application, the terminal device may determine the buffer size based on the sidelink data rate, to calculate a buffer size of terminal device in sidelink communication.

A convolutional interleaver included in a time interleaver, which performs convolutional interleaving includes: a first switch that switches a connection destination of an input of the convolutional interleaver to one end of one of a plurality of branches; a FIFO memories provided in some of the plurality of branches except one branch, wherein a number of FIFO memories is different among the plurality of branches; and a second switch that switches a connection destination of an output of the convolutional interleaver to another end of one of the plurality of branches. The first and second switches switch the connection destination when the plurality of cells as many as the codewords per frame have passed, by switching a corresponding branch of the connection destination sequentially and repeatedly among the plurality of branches.

Automatic load-balancing techniques in a network device are used to select, from a multipath group, a path to assign to a flow based on observed state attributes such as path state(s), device state(s), port state(s), or queue state(s) of the paths. A mapping of the path previously assigned to a flow or group of flows (e.g., on account of having then been optimal in view of the observed state attributes) is maintained, for example, in a table. So long as the flow(s) are active and the path is still valid, the mapped path is selected for subsequent data units belonging to the flow(s), which may, among other effects, avoid or reduce packet re-ordering. However, if the flow(s) go idle, or if the mapped path fails, a new optimal path may be assigned to the flow(s) from the multipath group.

Examples described herein relate to a system for accelerating data operations of a service mesh using a data mover accelerator.