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amzn / amzn-drivers

Official AWS drivers repository for Elastic Network Adapter (ENA) and Elastic Fabric Adapter (EFA)
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[Feature request]: ENA TX, RX hardware timestamping #296

Closed likewise closed 8 months ago

likewise commented 8 months ago

Preliminary Actions

Driver Type

Linux kernel driver for Elastic Network Adapter (ENA)

Motivation

Is there future possible support for TX and RX hardware packet timestamping on ENA, or is this roadmapped somewhere?

(SO_TIMESTAMPING socket option)

Also what is the closest we can get with the current kernel but also DPDK drivers wrt timestamping in software?

Solution

IEEE1588 Hardware time stamp unit (TSU) integrated with a MAC or PHY.

Contact Details

leon@sidebranch.com

amitbern-aws commented 8 months ago

Hi likewise,

  1. We are looking into incorporating HW TX/RX packet timestamping in ENA device in the future, its definitely in our roadmap, so stay tuned for updates.
  2. Can you explain/elaborate on your DPDK question?

Thanks

likewise commented 8 months ago
  1. I wondered if we can already use software timestamping in the DPDK RX/TX loops. I will look into this myself also.

Thanks.

likewise commented 7 months ago

Hi Amit,

Is there a way to find out about the roadmap, especially on what type of instances this will become available (first) and on what generation of instances this will not be rolled out?

I noticed PTP support is only on ARM based instances for example?

Thanks.

amitbern-aws commented 7 months ago

Hi likewise,

We don't publicly disclose our roadmap details, Currently, PTP is available in Asia Pacific (Tokyo) Region, on all R7g instances, But our team is indeed working on incorporating HW TX/RX packet timestamping on several ENA devices in the future. We appreciate your understanding and ongoing support and we will update you as soon as we can. Should you have any further questions or require assistance, please don't hesitate to reach out.

Thanks

amitbern-aws commented 7 months ago

PTP is now available also in US East (N. Virginia) region on all R7g instances, and we will be expanding support to additional AWS Regions and EC2 Instance types.

https://aws.amazon.com/about-aws/whats-new/2024/03/amazon-time-sync-service-microsecond-accurate-time-us-east-n-virginia-region/

wrfeewrtgaqwfrwaq commented 6 months ago

We'd also be very interested in improving jitter of timestamps in our packets. It would be great to get AF_XDP timestamping to integrate it with onload

oliora commented 1 week ago

Would be interested in getting HW TX/RX packet timestamping on EC2 instances as well