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okramer's avatar
okramer
Icon for Occasional Contributor rankOccasional Contributor
6 years ago
Solved

Expected "channels" specification in the BSP's board_spec.xml but see nothing.

I'm learning about Intel's "channels" OpenCL extension for host-to-kernel and io-to-kernel communication. The training video says the specification of the board's available channels are in board_spec...
  • MEIYAN_L_Intel's avatar
    MEIYAN_L_Intel
    6 years ago

    Hi,

    Yes host-to-dev channel and dev-to-host are supported only by "a10gx_hostpipe"BSP.

    For question "Does Intel perhaps provide a BSP with ethernet available, since the dev kit comes with ethernet?", i would need some time to check it internally.

    The BSP support host-dec streaming via pipe. The channel is provided for pipe to work. There is no difference between pipe and channel, it only the name difference here.

    Thanks

okramer's avatar
okramer
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

I don't think aocl is seeing a10gx_hostpipe. When I do "aocl install", am I supposed to provide it the path to hostpipe BSP? My directory structure is:

~/intelFPGA_pro/19.3/hld/board/a10_ref
   board_env.xml  
   bringup/
   hardware/  
      a10gx/
         board_spec.xml, ...
      a10gx_hostpipe/
         board_spec.xml, ...
   linux64/
   scripts/
   source/

I ran aocl install $INTELFPGAOCLSDKROOT/board/a10_ref successfully, but when I do aocl diagnose acl0 I see:

...
--------------------------------------------------------------------
BSP Diagnostics                                                     
--------------------------------------------------------------------
Using Device with name: a10gx : Arria 10 Reference Platform (acla10_ref0)
...

The diagnostic passes, but the device name = "a10gx" worries me. In $INTELFPGAOCLSDK/board/a10_ref/hardware/a10gx_hostpipe/board_spec.xml, the device name is given as name="a10gx_hostpipe", while in a10gx/board_spec.xml, it is given as name="a10gx". Does this mean I'm accessing the wrong BSP? How do I install the a10gx_hostpipe BSP?