[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

over 10 years ago

0 lding over 10 years ago

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 Naoki Kawada over 10 years ago 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 lding over 10 years ago 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

Processors

Processors forum

[K2H] Hyperlink/sRIO communication between K2Hs