Abstract: Systems and methods are provided for management of PCIe bandwidth within an IHS (Information Handling System). A PCIe connection is detected between a first of the processors of the IHS and a solid-state drive accessed via a DPU (Data Processing Unit). In a processor core of the DPU (e.g., ARM core) buffers are initialized for tracking specific types of errors in the PCIe connection. Upon detecting an error in the PCIe connection, the error is added to one of the designated buffers based on a type of the detected error. If adding of the error in the PCIe connection to the buffer results in a size limit of the buffer being reached, and if the size of the buffer cannot be reduced through retransmission of the errors in the buffer, a transmission speed of the PCIe connection is downgraded, thus extending operations at higher transmission speeds.

Abstract: Systems and methods provide circuit optimizations using a mech architecture of an IHS (Information Handling System). A control block operated by a CPU of the IHS determines availability of mesh resources, including resources of a removeable processor of the IHS. The control block reserves available resources of the removeable processor for use in a circuit optimization. The control block assigns a portion of the circuit optimization to the removeable processor. A mesh client operated by the replaceable processor calculates a result by processing the assigned portion of the circuit optimization. The mesh client also tracks the use of resource of the removeable processor during the calculation of the assigned portion of the circuit optimization. The results of the calculation and a log specifying the tracked use of the resources of the removeable processor are transmitted to the control block to determine updates to the mesh resources that are reserved.

Abstract: Systems and methods provide management of PCIe bandwidth within an IHS (Information Handling System) through predictive evaluation of signaling degradation in PCIe lanes of the IHS. Upon initialization of the IHS, a DPU (Data Processing Unit) generates baseline signal integrity measurements for PCIe links supported by a PCIe interface of the DPU. A signaling analytic model operated by the DPU is calibrated using the baseline signal integrity measurements. A signal degradation prediction is generated by the signaling analytics model. When the signal degradation prediction is confirmed versus observed degradation in the PCIe interface, use of the signaling analytics model is activated. The activated signaling analytics module is then utilized to predict a signaling degradation in a connection supported by the PCIe interface of the DPU. In response to the prediction by the activated signaling analytics model, a corrective operation is initiated in order to prevent the predicted signaling degradation.

Abstract: Systems and methods are provided for management of PCIe bandwidth within an IHS (Information Handling System). A PCIe connection is detected between a first of the processors of the IHS and a solid-state drive accessed via a DPU (Data Processing Unit). In a processor core of the DPU (e.g., ARM core) buffers are initialized for tracking specific types of errors in the PCIe connection. Upon detecting an error in the PCIe connection, the error is added to one of the designated buffers based on a type of the detected error. If adding of the error in the PCIe connection to the buffer results in a size limit of the buffer being reached, and if the size of the buffer cannot be reduced through retransmission of the errors in the buffer, a transmission speed of the PCIe connection is downgraded, thus extending operations at higher transmission speeds.

Abstract: Methods and systems are provided for designing an optimized stack up of layers of a PCB (Printed Circuit Board). A set of constraints is determined for the PCB stack up, where the constraints limit a total number of layers, a number of signal layers, and a thickness of the PCB stack up. Each of the constraints on the PCB stack up is encoded as an equality or an inequality. The set of equalities and inequalities is solved using integer programming techniques to identify an optimal solution to the set of constraints on the PCB stack up, where the optimal solution specifies an arrangement of signaling layers for the PCB. An estimate is generated for impedances and losses for the optimal PCB stack up. The constraints on a PCB stack up are modified when the estimated impedances and losses for the optimal PCB stack up are above a target threshold.

Abstract: An information handling system includes a transmitter that transmits data over a channel to a receiver. The transmitter operates to transmit a test sequence including a repeating sequence of a number of logic 1's and the number of logic 0's. The receiver operates to detect noise injected onto the channel based upon an output from a data eye sampler in response to the test sequence.

Abstract: An information handling system includes a transmitter that transmits data over a channel to a receiver. The transmitter operates to transmit a test sequence including a repeating sequence of a number of logic 1's and the number of logic 0's. The receiver operates to detect noise injected onto the channel based upon an output from a data eye sampler in response to the test sequence.