Johannes Lang: IPMI Controller Johannes Lang, Ming Liu, Zhen’An Liu, Qiang Wang, Hao Xu, Wolfgang Kuehn JLU Giessen & IHEP

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Outline  PANDA Data Acquisition and Trigger  FPGA based ATCA Compute Node  ATCA and Intelligent Platform Management Interface (IPMI) ‏  Implementation of the IPMI Controller

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing PANDA DAQ & Trigger Idea in PANDA: continuous sampling, processing & event selection  PANDA data rate: >200 GB/s  FPGA based Compute Nodes  Using advantages of ATCA

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing ATCA Advanced Telecom Computing Architecture Integrated bandwidth of backplane: up to 2.1Tbit/s Serial point to point connections Dual Star & Full Mesh Fabric topology 8U boards (31.1cm x 28cm) ‏ Up to 200W per slot 48V power supply Redundant & reliable Shelf Manager allows IPMI management

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Compute Node for PANDA DAQT FPGA based Compute Node Universal & scalable Configurable and flexible ATCA backplane interconnections

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Compute Node for PANDA DAQT

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Intelligent Platform Management Interface Manage & monitor the operation and health of each Field Replaceable Unit (FRU) ‏ ATCA specification requires IPMI Controller for every FRU Communication via 2 x I²C bus Important features: –Control power consumption of crate –Handle cooling capabilities –Hot Swap –Electronic keying (backplane assignment) ‏ –Sensor readings –Web Interface (repository) ‏ –Remote reset/reboot/configure of FRUs

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing IPMC Add-on Card Pluggable & portable Add-on Card ATMEL ATmega2560 –8 bit AVR microcontroller –256KByte Flash –1 x I²C –86 Programmable I/O Lines Small outline & low power consumption 2 x I²C to parallel interfaces Program & extension connector UART driver 2 x 60 pin connectors to ATCA board ATCA Board

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Prototype Debug Pins UART driver I²C Interfaces MP buttons Crystal Extension connector LEDs µC JTAG 35mm x 75mm 4 Layer board

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Software Developing with C programs GNU avr-gcc Compiler & IDE Programs to manage different resources and monitor the health of FRUs –To control the reconfiguration of FPGAs (normal and backup) –To reboot the Linux OS (normal and backup) –To recognize the FRU and negotiate the power supply dynamically –To coordinate with the shelf manager –To monitor the system voltage and current for CNs –To monitor the temperature of CNs –…… Periodical checks & interrupt handling Extendable for future custom needs Adjustable for other boards/nodes

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Status / Outlook Add-on card fulfills ATCA related & custom needs Prototype tested –JTAG programming of µC –Physical connections to CN –DC/DC control of CN –I²C communications –Reading of geometrical address from backplane –IPMC – FPGA bus Recently implementing I²C and necessary IPMI protocol Co-verification with our CN design

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Thanks for your attention! Work supported by: BMBF 06 Gi 180 & 179 WTZ GSI DFG

Johannes Lang: IPMI Controller IEEE NPSS Real Time Conference IHEP, Beijing Schematic View of IPMC on CN