L- and H-tile Avalon® Streaming and Single Root I/O Virtualization (SR-IOV) Intel® FPGA IP for PCI Express* User Guide

ID 683111
Date 3/07/2022

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Document Table of Contents

3.3. TX Credit Interface

The Transaction Layer TX interface transmits TLPs in the same order as they were received from the Application. To optimize performance, the Application can perform credit-based checking before submitting requests for transmission, allowing the Application to reorder packets to improve throughput. Application reordering is optional. The Transaction Layer always performs a credit check before transmitting any TLP.