i210 can't generate the 1PPS pulse when it become the ptp slave

[waleslai]

Hi All

I try to run linnxptp with i210 NIC card, by tutorial, I already modify igb Linux driver source code to generate 1PPS at SDP 0 pin, however, when I run it for IEEE 1588 test, the i210 as master of IEEE 1588, by Scope, we can find the PPS is stable at every 1 second. But if it be the slave of IEEE 1588, the PPS disappear and never show again

After much test and check the driver code, we sure the PPS can't generate when it's become the slave of IEEE 1588, we don' understand why?

===================

System information

OS: Ubuntu 20.04 with kernel 5.4.0-26

Linuxptp(The Linux PTP Project  ) 2.0, we try to using the latest version, still same

igb source version: 5.4.16

*figure show we modify part

If have any information need us provide, we will post it later

Thanks every one who give us help

BR

[Sazirah]

Hi waleslai,

Thank you for posting in Intel Ethernet Communities.

Regarding your issue, we are currently checking on it and give get back to you shortly.

Regards,

Sazzy_Intel

[Sazirah]

Hi waleswai,

Good day.

Regarding your enquiries above, we have a documentation related to your enquiries that is available in Intel Research & Documentation Center (https://www.intel.com/content/www/us/en/resources-documentation/developer.html#gs.8l8k06)

You may want to refer to below link :

https://www.intel.com/content/www/us/en/secure/content-details/635237/intel-ethernet-ieee-1588-and-synce-application-note.html?wapkw=631173&DocID=635237

However, this document is confidential and requires NDA to access. You may use your own NDA to access it, or if you dont have it, we may need to create one. Please provide below details:

Company Name:

Country:

Main Contact (Name of the person who is asking for confidential information):

Contact Position or Job Title:

Main Contact Phone Number:

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NDA Number (if customer has signed an NDA previously).

Regards,

Sazzy_Intel

[waleslai]

Hi Sazirah,

Good day.

Thank you for the information. I will discuss the NDA requirement with my team member.

Additionally, if we decide to sign the NDA, could you provide contact person or an email address for us to know the NDA apply progress?

Regards,

Waleslai

[Sazirah]

Hi waleswai,

Thank you for your reply.

If you are interested with the NDA creation, you may provide those required details and I will initiate the creation from my end.

Additionally, you may want to refer to link below related to this,

https://www.intel.com/content/www/us/en/support/articles/000058073/programs/resource-and-documentation-center.html

Regards,

Sazzy_Intel

[Irwan_Intel]

Hello waleslai,

We have sent follow up email if you'd like to proceed NDA

Regards,

Irwan_Intel

[waleslai]

Hi Sazirah and Irwan_Intel

It's been a great help

We already received the mail from Intel Customer Support,

when we ready, we will send the mail to start the sign the NDA

Regards,

Walealai

[Irwan_Intel]

Hello waleslai,

Thanks. Just reach out to us and provides the details as requested. We're here to assist you every step of the way

Regards,

Irwan_Intel

[Sachinks]

Hello waleslai,

Greetings!

We have checked your concern related to PPS alignment edge with our Internal team and these are their suggestions.

Kindly confirm if this is a LOM I210 or if it is I210-T1 ethernet adapter? also, If it is a LOM design, it’s ok to add an inverter for your applications.

Please contact us back if you have any other queries.

Thank you for using Intel products and services.

Regards,

Sachin KS

[waleslai]

We use the I210-T1 ethernet adapter.

Our members already add inverter on I210-T1 ethernet adapter, seems it can meet our requirement.

But we have a question that can we change the PPS edge by config the E1000 register? without inverter 

The figure show the our PPS result

 i210 PPS(Yellow line)

our DUT PPS(pink line)

We want the Yellow line can use raise edge alignment with us edge

Regards,

Waleslai

[Dineshbabu]

Hi waleslai,

Thank you for your response. Please allow us some time to review the details and we will get back with an update shortly.

Regards,

Dinesh

[Sachinks]

Hello Waleslai,

Greetings!

We have checked this with our internal team and they have suggested that unfortunately, we can’t change PPS edge by config the E1000 register without inverter, however there is a possible way to implement that we reverse the data detection ( 0 <>1 ) by config driver in linux.

Regards,

Sachin KS

[Sazirah]

Hi waleslai,

Good day,

This is related to your enquiries above, I would like to check if you require any further assistance?

If you have any questions or clarifications, please let me know.

Regards,

Sazzy_Intel

[Sazirah · Accepted solution]

Hi waleslai,

This is regarding your enquiry above.

Since we have not seen an update, we will be closing this forum case from our end. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Regards,

Sazzy_Intel