• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 99 subscribers
  • Views 1534 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

[K2H] Hyperlink/sRIO communication between K2Hs

Naoki Kawada
Guru 19890 points

Hello,

My customer starts to evaluate K2H EVM and is wondering if Hyperlink can be used between two K2H EVM (A15 side, not DSP).
I think the answer is 'yes' when using OpenMPI + RTM-BOC, but my customer does not like to use OpenMPI...
So now my question is ... do you have generic hyperlink linux drivers in kernel, which you could support via e2e ?
If yes, do you have any example application code for that ?

Also, this is just for my understanding, but please let me know about sRIO use case, instead of hyperlink. 
Do you have generic sRIO linux driver in kernel, which you could support via e2e ?
If yes, do you have any example application code for that ?

Best Regards,
Kawada

  • 0
    TI__Guru* 95265 points
    Kawada,

    Yes, this is available via mpm transport over Hyperlink or over SRIO. processors.wiki.ti.com/.../MCSDK_UG_Chapter_Developing_Transports
    I think the support would be the Linux e2e forum. e2e.ti.com/.../354

    Regards, Eric
  • 0 in reply to lding
    Guru 19890 points

    Hello Eric,

    Thanks for your information. I understood.
    MPM-Transport library looks the core of the transports such like QMSS, Hyperlink, and SRIO. And as for SRIO(TransportSrio) and QMSS (TransportQmss -- in development), there is the higher level of API (IPC's MessageQ) to utilize MPM-Transport. Now I'm wondering why there is no transport implementation for Hyperlink -- let's say TransportHyperlink. I think this implies Hyperlink can't be controlled via IPC MessageQ API.  Do you have any plan for this ?

    Best Regards,
    Naoki

  • 0 in reply to Naoki Kawada
    TI__Guru* 95265 points
    Naoki,

    For Hyperlink you can use mpm transport mmap/write/read API over hyperlink to exchange data between two KS II devices. For IPC over Hyperlink, it is not available, it is in planning but not a definite timeline.

    Regards, Eric