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Embedded Linux Conference (ELC) [clear filter]
Monday, October 26

12:00 GMT

Upstream First is Our Principle - Toward Super Long-Term Support - Masashi Kudo, Cybertrust Japan Co., Ltd. & Chris Paterson, Renesas Electronics Europe
CIP (Civil Infrastructure Platform) project aims to support industrial-grade systems by fulfilling the required level of reliability, sustainability, and security during their life cycles which are long, typically more than 10 years. CIP kernel and test teams are working to provide and maintain Linux kernel to sustain CIP activities overall. In order to sustain activities for such a long period, the teams adopt "Upstream First" as development principle. The “Upstream First” principle allows patch commits only if those patches are already in the upstream. Having both pros and cons, this principle turned out to be crucial and essential to continue releases and maintenance. The CIP kernel team works with Linux Kernel LTS and other open source projects to share its findings and contribute outputs. The CIP test team has strengthened automated testing systems for CIP by working with KernelCI and LAVA. This presentation updates activities of the CIP kernel and test teams which follow the "Upstream First" principle, and features collaborative works with Linux Kernel LTS, KernelCI and LAVA.

avatar for Chris Paterson

Chris Paterson

Project Leader, Renesas Electronics Europe
Project leader in the Linux team at Renesas Electronics Europe. Testing working group lead in the Civil Infrastructure Platform (CIP) project.
avatar for Masashi Kudo

Masashi Kudo

Technology Advisor, Cybertrust Japan Co., Ltd.
Masashi Kudo is working as Technology Advisor at Cybertrust Japan Co., Ltd. He has more than 30 year's experience in IT and network software development. He works for CIP (Civil Infrastructure Platform) project as representatives of Cybertrust Japan Co., Ltd, and acts as CIP Kernel... Read More →

Monday October 26, 2020 12:00 - 12:50 GMT
ELC Theater
Tuesday, October 27

19:30 GMT

Precision Time Protocol (PTP) and Packet Timestamping in Linux - Antoine Tenart, Bootlin
Time synchronization is important when dealing with transactions, transmissions, logging, etc. on multiple machines and high accuracy can be required. The precision time protocol (IEEE 1588) aims at providing a clock synchronization protocol with an accuracy down to the sub-microsecond range. In this talk we'll see how the protocol works, what are its modes of operations (1-step, 2-step, grand master, etc.) and see what capabilities of the kernel are used, such as packet timestamping. We will also cover how and why timestamping can be offloaded to hardware devices (MAC, PHY, switches), in particular for PTP packets.


Antoine Tenart

Linux kernel engineer, Bootlin
Antoine is a Linux kernel engineer at Bootlin since 2014 and has been mostly working on networking (MAC, PHY, switch) and cryptography engines; on ARM, ARM64 and MIPS platforms. He also has experience in the Buildroot and Yocto/OE build systems.

Tuesday October 27, 2020 19:30 - 20:20 GMT
ELC Theater

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