PCI Express Hot-Plug mechanism in Linux-based ATCA control systems

PCI Express architecture is a widely used communication bus designed for industrial application. Additionally, according to PICMG 3.4 specification it is a part of ATCA architecture. One of the features offered by PCI Express standard is possibility of replacing the system components without shutting down entire system. In this paper, authors present general overview of Hot-Plug implementation in Linux operating system used in ATCA carrier board.