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Andrew [email protected]
What is a BMC?▶BMC – Baseboard Management Controller
▶ Separate uproc (eg. AST 2500) with dedicated RAM and Flash▶ Provides
▶ System Power/thermal control▶ Out of Band management
▶ IPMI, REST, etc▶ Data collection▶ Debug▶ GUI and Command line
▶ Interfaces to Host/OCC▶ System error logging
▶ Based on OpenEmbedded technologies built via Yocto▶ Embedded Linux stack▶ Linux Kernel 4.10….4.18, Yocto 2.3…2.6, python, SSH
▶ Applications communicate via D-Bus ▶ Users communicate via REST, IPMI and GUI▶ Reports externally to management entity
▶ No customer network functional interaction
What is the OpenBMC ProjectFree open source software management Linux distribution
designed for the embedded environment
…
OpenPOWER Eco-system Enablement
Industry Collaboration
Quality Solutions
Reduce Redundant Effort
Openness -- provides proof of security
Part of Linux Foundation
What is OpenBMC
▶100% compatible with OpenPOWER Hostboot/Opal/OCC▶ Aka BIOS▶ https://github.com/open-power/op-build
▶Can simply be a reference implementation
▶Currently runs on…▶ Barreleye, S822LC, S822LC For HPC, P8 Reference▶ Witherspoon -- P9 AC922LC Power AI and CORAL▶ P9 reference boards▶ AST2400 and AST2500 BMC hardware
Core Infrastructure of the OpenBMC ProjectControl the Functions in your OpenBMC…▶Built on Yocto-Linux▶YAML/XML input for system configuration
Infrastructure at the ready▶Process management Systemd▶ IPC via D-Bus ▶External Interfaces via REST, IPMI, GUI▶ Journaling for Trace/debug▶Code update▶Code stack security
OpenBMC development customizations
Data Driven approach▶Recipes for pulling in desired functions - Modularity▶Hardware configuration▶ IPMI entity IDs and Sensor Definitions▶Define environmental limits▶Human readable properties
Views of Community Success▶Core enables industry to produce solutions
▶Feature advances come from everywhere
▶ Google, IBM, Facebook, Microsoft, Intel, etc
▶System management software supports OpenBMC
▶Diverse architectures can be managed similarly in the datacenter
▶Developer Training and Full Devops Environment
▶ Prebuilt images (QEMU, various platforms) with automated Build Verification
▶ Use of Gerrit for Code Reviews
▶ Use of QEMU Simulation
OpenBMC Community LinksCode:
https://github.com/openbmc
Continuous Testing:https://openpower.xyz
Servers provided by Rackspace, IBM, Google, ITRenew
Code Reviews:http://gerrit.openbmc-project.xyz
Monday Community Call:https://github.com/openbmc/openbmc/wiki/Weekly-Community-Telecon#access-information
Contacts:▶ Mail: [email protected]/listinfo/openbmc
IRC: #openbmc on freenode.net
▶ Riot: #openbmc:matrix.org
OpenBMC Tutorials:▶ https://github.com/openbmc/docs/development
▶ Development Environment Setup
▶ Hello World with the SDK
▶ Web UI Customization
▶ Creating a new System
Backup
What is D-Bus
Without D-Bus With D-Bus
§ Inter-Process Communication (IPC) mechanism§ Well defined interfaces between applications/processes
• Modularity, Encapsulation, Abstraction
▶ Rapid community collaboration
▶ Rapid Prototyping▶ Bindings for C/C++, Python,
etc
▶ Complete IPC integration with systemd
User Interface –Systems Overview
▶Client Rendered▶HTML5▶No java
User Interface - Login
Prebuilt images
Automated Build Verification
• Dedicated Test Development Team• Every commit… tested
Code Reviews
Simulation (QEMU) == No Hardware Required
AST2400 and AST2500 supported
