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saysai's avatar
saysai
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3 years ago

PCIe PTM time adjustment

Hi, We are using "Intel(R) Xeon(R) E-2334 CPU @ 3.40GHz" processor to test PCIe PTM with a third party PCIe NIC card. We see that PTM is supported on the PCI bridge (below is the lspci output) 00:0...
Allan_A_Intel's avatar
Allan_A_Intel
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3 years ago

Dear saysai,


Thank you for reaching out to us regarding your query about synchronizing the x86 system time with PCIe PTM. We appreciate your detailed description of the issue and would be glad to assist you.


To begin with, it's important to note that the synchronization of x86 system time with PCIe PTM is primarily handled by the operating system and the software components involved in the process. The processor itself, such as the Intel® Xeon® E-2334 Processor in your case, does not directly impact this synchronization.


To better understand your setup and provide you with accurate guidance, we kindly request the following information:


  1. Motherboard Brand and Model: Please provide the brand and model of the motherboard you are using.
  2. Third Party PCIe NIC Card: Kindly specify the brand and model of the PCIe NIC card you are using. This detail will enable us to gather specific information about the card's compatibility.
  3. Operating System: Please let us know the operating system installed on your x86 system.


We appreciate your patience, and we look forward to assisting you further.


Best regards,


Allan A.

Intel Customer Support


saysai's avatar
saysai
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3 years ago

Dear Allan,

Thanks for the response. First of all I would like to clarify regarding my original query as given below.

We want to synchronize PCIe PTM time with x86 system time, so that PCIe PTM dialogues from x86 PTM responder carry the x86 system time rather than time (UP time) maintained by ART timer. So is there anyway to program ART timer with x86 system time (or) use the system time source as input to PCIe PTM block.

Here are the replies to your queries:

  1. Motherboard Brand and Model: Please provide the brand and model of the motherboard you are using. >> DELL PowerEdge T150
  2. Third Party PCIe NIC Card: Kindly specify the brand and model of the PCIe NIC card you are using. This detail will enable us to gather specific information about the card's compatibility. >> We are using FPGA NIC card to test the PTM functionality.
  3. Operating System: Please let us know the operating system installed on your x86 system >> Ubuntu 20.04.4 LTS

Thanks,

Sai