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EastGun-A's avatar
EastGun-A
Icon for New Contributor rankNew Contributor
2 years ago
Solved

PCIe Memory write TAG

hello, i wonder about the pcie protocol. i just know memory write request don't need completion. then, why tag bit is essential?? is any function in memory write request??? tag bit do the orderi...
  • Wincent_Altera's avatar
    Wincent_Altera
    2 years ago

    Hi,

    Based on my understand the answer is No, there is no additional function specifically for correcting the order with tag bits when applying relaxed ordering in a posted write request. The purpose of relaxed ordering is to allow certain reordering of memory operations for improved performance, but it does not involve any specific mechanism to correct the order with tag bits. If you require a specific ordering of memory operations, you should use a different memory ordering model or synchronization techniques such as fences or barriers. Please correct me if you feel I am wrong.

    Regards,

    Wincent_Intel

Wincent_Altera's avatar
Wincent_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi


Thanks for your confirmation on the answer

Hence, This thread will be transitioned to community support.

If you have a new question, feel free to open a new thread to get support from Intel experts.

Otherwise, the community users will continue to help you on this thread. Thank you

If you feel your support experience was less than a 9 or 10,

please allow me to correct it before closing or let me know the cause so that I may improve your future support experience.

Regards,

Wincent_Intel