Copy from and to stream

[Mellich]

Allow to use the copy operation to copy data from stream to buffer and from buffer to stream.
Adds a test to the hls test suite to show this behavior.

[TristanLaan]

Here the same as #94 probably applies, that we will want to add some extra functions to avoid the need to use dummybuffers.

[Mellich]

Here the same as #94 probably applies, that we will want to add some extra functions to avoid the need to use dummybuffers.

Wouldn't it make sense to do the API change in a single PR and merge this before?

[TristanLaan]

Here the same as #94 probably applies, that we will want to add some extra functions to avoid the need to use dummybuffers.

Wouldn't it make sense to do the API change in a single PR and merge this before?

I think it’s better to first merge the API change, so that if someone stumbles upon the dev branch, they’re not going to see the dummybuffers as intended behaviour.

[TristanLaan]

I think this is not applicable on hardware. When I run it with the axis3x design for U55c it tries to connect to a non-existing ZMQ server and the test crashes with CCLO @0x0: during copy the following error(s) occured: DMA DECODE ERROR, DMA NOT OKAY ERROR (00000000000000000000010100).

[Mellich]

Hm, I create a BFM, which is not used in hardware. So I have to change this. But the error sounds like something else is... not okay. Let me check.

[Mellich]

I fixed the BFM creation for hardware builds. But I get the same error during hardware execution. Maybe we need a recent build to test this. It works in the simulator though...

[quetric]

which hardware are we targeting for running this test? the vadd_put and copy tests seem to require different PL kernels attached to the CCLO. Tests on hardware will either fail one or the other

[Mellich]

I moved the copy stream test to the XRT test suite since it should work with the default loopback kernel. In the HLS suite it would lead to problems in hardware. It now works for me when I execute the XRT test across two U55C.

[TristanLaan]

Apart from the wrong naming scheme for the hostctrl kernel this works on hardware and emulator.