9-15 June 2018
Woodlands Conference Center
America/New_York timezone
**** See you at Real Time 2020 ****

PCIe Hot Plug support standardization challenges in ATCA

12 Jun 2018, 09:10
20m
Woodlands Conference Center

Woodlands Conference Center

159 Visitor Center Dr, Williamsburg, VA 23185
Oral presentation Large Experiments 4

Speaker

Miguel Correia (Instituto Superior Técnico, Universidade de Lisboa)

Description

Throughout the last decade, ATCA solidified its position as one of the main standards for advanced Physics instrumentation, in particular hard real-time control and data acquisition applications, using PCIe as the preferred communications protocol.
ATCA offers not only highly performant characteristics in data throughput, channel density or power supply/dissipation capabilities, but also special features for high-availability (HA), required for latest and upcoming large-scale endeavours, as is the case of ITER. Hot Swap is one of the main HA features, allowing for a board to be replaced within a Shelf, without powering-off the whole system, thus ensuring continuity of operation.
Platforms using PCIe on the Fabric Interface (PICMG 3.4) must be complemented with the PCIe Hot Plug functionality, so that hot insertion/extraction of (hardware) Boards is followed by the respective add/removal of the (software) PCIe devices and other higher-level interacting applications. However, PICMG 3.4 does not specify an implementation for Hot Plug.
From a customised Hot Plug solution, developed by IPFN for the ITER Fast Plant System Controller ATCA platform, this paper identifies the main issues for achieving PCIe Hot-Plug support in ATCA, such as implementability of Hot Plug Elements, generation and management of Hot Plug Events, and compatibility with ATCA Hot Swap. Also addressed are matters of Hot Plug for PCIe external cable connections, as many PICMG 3.4 systems use external host computers. This paper aims to stimulate the discussion within the PICMG community towards a standardization of Hot Plug in ATCA.

Institute IPFN
Speaker Miguel Correia
Country Portugal
Minioral Yes
Description PCIe

Primary author

Miguel Correia (Instituto Superior Técnico, Universidade de Lisboa)

Co-authors

Mr Jorge Sousa (IPFN, Instituto Superior Técnico) António Rodrigues (IPFN, IST, Universidade de Lisboa) Mr Paulo Carvalho (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal) Bruno Santos (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Portugal) Álvaro Combo (IPFN, IST, Universidade de Lisboa) Prof. Carlos Correia (LIBPhys-UC, Department of Physics, University of Coimbra, P-3004 516 Coimbra, Portugal) Dr Bruno Gonçalves (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal)

Presentation Materials