Systems and methods are provided for validating an identifier using a dynamic matching scheme, including software-defined-matching or hardware-validated-matching. Software-defined-matching may determine whether two identifiers are logically the same when they are both generated by a software application and match each other, and hardware-validated-matching may determine whether the identifier provided by a message stamping process generated by a hardware component of the device matches a second identifier. The flexible validation process can allow the origin of the device to be trusted when the device is sending communications in the network, while detaching the trust from the user that is operating the trusted device or installing software (e.g., an operating system) on the device for temporary use. By disassociating the trust and independently verifying the device separate from the user operating the device, the communications sent and received by the system can be further trusted or distrusted accordingly.

Various embodiments provide for cut-through data unit forwarding with early ingress processing of a data unit in a communications network, such as an Ethernet-based network. According to some embodiments, cut-through data unit forwarding is performed such that data unit processing is initiated by a receiving network device while the data unit is still underway from a transmitting network device.

A computer system with a central, non-system memory (NSM) gateway circuit for routing non-DRAM transactions between agent circuits coupled to a plurality of networks of the computer system, which may include packet-switching capabilities. Such non-DRAM transactions may be routed via a virtual channel in some implementations. To facilitate handling of such transactions, the NSM gateway circuit may include dedicated routing storage (e.g., an input buffer for each source agent circuit on each of the plurality of networks and an output buffer for each destination agent circuit on each of the plurality of networks). The NSM gateway circuit may serve as a termination point for non-DRAM transactions within the computer system, allowing network credit for a message included in a non-DRAM transaction to be returned to a source agent circuit prior to delivery to one or more destination agent circuits.

A computer system with a central, non-system memory (NSM) gateway circuit for routing non-DRAM transactions between agent circuits coupled to first and second networks of the computer system. The NSM gateway circuit may route, for example, a message for a non-DRAM transaction from a source agent circuit coupled to the first network but not the second network to a destination agent circuit coupled to the second network but not the first network, and vice-versa. The NSM gateway circuit can also route messages for non-DRAM transactions between source and destination agent circuits both located on the same network. Still further, the NSM gateway circuit can route broadcast (i.e., one-to-many) transactions as well as network element configuration requests. In some implementations, a computer system may have multiple NSM gateway circuits, each assigned to handle non-DRAM transactions from an assigned set of agent circuits.

Aspects of present disclosure include devices within a transmission path of streamed content forwarding received data packets of the stream to the next device or hop in the path prior to buffering the data packet at the device. In this method, typical buffering of the data stream may therefore occur at the destination device for presentation at a consuming device, while the devices along the transmission path may transmit a received packet before buffering. Further, devices along the path may also buffer the content stream after forwarding to fill subsequent requests for dropped data packets of the content stream. Also, in response to receiving the request for the content stream, a device may first transmit a portion of the contents of the gateway buffer to the requesting device to fill a respective buffer at the receiving device.

A credit return field is used in a credit-based flow control system to indicate that one or more credits are being returned to a sending device from a receiving device. Based on the number of credits available, the sending device determines whether to send device or wait until more credits are returned. A write enable mask allows a wide data field to be used even when a smaller amount of data is to be written. A novel data packet uses a combined write enable mask and credit return field. In one mode, the field contains a write enable mask. In another mode, the field contains credit return data. If the field contains credit return data, a default value (e.g., all ones) is used for the write enable mask. The mode may be selected based on another value in the data packet.

A packet forwarding apparatus includes a first storage device and a processor. The first storage device has a plurality of buffers allocated therein, and at least one buffer included in the plurality of buffers is arranged to buffer at least one packet. The processor is arranged to execute a Linux kernel to perform software-based packet forwarding associated with the at least one packet. The at least one buffer allocated in the first storage device is recycled through direct memory access (DMA) management, and is reused for buffering at least one other packet.

A credit return field is used in a credit-based flow control system to indicate that one or more credits are being returned to a sending device from a receiving device. Based on the number of credits available, the sending device determines whether to send device or wait until more credits are returned. A write enable mask allows a wide data field to be used even when a smaller amount of data is to be written. A novel data packet uses a combined write enable mask and credit return field. In one mode, the field contains a write enable mask. In another mode, the field contains credit return data. If the field contains credit return data, a default value (e.g., all ones) is used for the write enable mask. The mode may be selected based on another value in the data packet.

The present disclosure relates to the field of cloud computing technology, and discloses a packet processing method and apparatus applied to a DPU, a computer device, and a storage medium. The packet processing method includes: storing a received network packet in a buffer unit, where the network packet includes a first packet and a second packet, and a packet processing speed of the second transmission path is higher than a packet processing speed of the first transmission path; monitoring a buffer watermark of a packet buffer space of the buffer unit, where the buffer watermark is used to indicate a usage degree of the packet buffer space; and in response to the buffer watermark being greater than a preset threshold, sending the first packet in the buffer unit to the first transmission path.

Aspects of present disclosure include devices within a transmission path of streamed content forwarding received data packets of the stream to the next device or hop in the path prior to buffering the data packet at the device. In this method, typical buffering of the data stream may therefore occur at the destination device for presentation at a consuming device, while the devices along the transmission path may transmit a received packet before buffering. Further, devices along the path may also buffer the content stream after forwarding to fill subsequent requests for dropped data packets of the content stream. Also, in response to receiving the request for the content stream, a device may first transmit a portion of the contents of the gateway buffer to the requesting device to fill a respective buffer at the receiving device.