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JET60200's avatar
JET60200
Icon for Contributor rankContributor
5 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
5 years ago

The multiple DMAs setting is NOT supported on Arria 10 PCIe AVMM DMA IP, and there is no similar example available at this moment.


Regards -SK


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

    Thanks @SengKok_L_Intel for reply,

    If we consider “PCIe AVMM IP setting” （instead of AVMM DMA IP ）, is it possible to connect "two independent mSGDMA instances" to this single “PCIe AVMM IP‘s’" TXA Slave Port ?

    What I means is " the two sMGDMA module will mainatein their own pcie DMA operation seperately, while share the same gen3x8 PCIE BUS” , Does this implementation feasible, and does it need an arbitrator ? Thanks a lot