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JET60200's avatar
JET60200
Icon for Contributor rankContributor
4 years ago
Solved

Arria10 PCIe need two DMAs, (one for data moving ; the other for control msg transfer)

Hi expert: Now we use Arria10 w/ PCIe Gen3x8（AVMM-DMA IP setting）, which means we have avmm-dma engine for data moving now, and it works well in our product. But now we request to add “contro...
SengKok_L_Intel's avatar
SengKok_L_Intel
Icon for Regular Contributor rankRegular Contributor
4 years ago

Yes, this should be doable with your custom logic with the arbitrator and a descriptor controller that design to handle it.


  • JET60200's avatar
    JET60200
    Icon for Contributor rankContributor
    4 years ago

    OK, Thanks @SengKok_L_Intel for answer & suggestion,

    But we have further questions:

    1) Where to find " MSGDMA User Guide" , also an example design on Arria10 ? I 'd like to check for evaluation.

    2) regarding of " the arbitrator and a descriptor controller ", can you clarify more details of " HOW TO IMPLEMENT that " ? （Is it mandatory for 2 DMA engine to work together ? ）

    Thanks again for expertized answer