communication of specific transaction attributes in a peripheral component express interconnection (pcie) system

摘要

the pcie system includes a host system (304) and at least one pcie termination point (302). The pcie endpoint is configured to determine one or more specific transaction attributes that can improve the efficiency and performance of a predefined host transaction. the pcie endpoint encodes the specific transaction attributes in a transaction layer packet (tlp) prefix of at least one pcie tlp and provides the pcie tlp to the host system. pcie root complex 316 in the host system is configured to detect and extract specific transaction attributes from the pcie tlp prefix received from the pcie endpoint. By communicating specific transaction attributes in the pcie tlp tlp prefix, you can improve the efficiency and performance of the pcie system without violating the existing pcie standard.