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Simple PCIe FMC carrier SPEC
Commit 239dde56 authored by Federico Vaga's avatar Federico Vaga
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tst: regressions are actually true limitations, remove test 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent bc0b9676
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Showing with 12 additions and 24 deletions
pytest/test_dma.py
View file @ 239dde56
......@@ -24,48 +24,36 @@ class TestDma(object):
spec_c.dma_start()
spec.dma_stop()
@pytest.mark.parametrize("dma_size",
[0, 1, 2, 3] + \
[5, 7, 9] + \
[2**i for i in range(24)])
def test_dma_read(self, spec, dma_size):
@pytest.mark.parametrize("buffer_size",
[2**i for i in range(3, 22)])
def test_dma_read(self, spec, buffer_size):
"""
We just want to see if the DMA engine reports errors. Test the
engine with different sizes, but same offset (default:
0x0). On the engine side we will get several transfers
(scatterlist) depending on the size.
Regressions:
- 0: the driver returns immediatly without starting any DMA transfer
- 1, 2, 3, 4: performing transfers of these sizes led to a failure
"""
spec.dma_start()
data1 = spec.dma_read(0, dma_size)
assert len(data1) == dma_size
data2 = spec.dma_read(0, dma_size)
assert len(data2) == dma_size
data1 = spec.dma_read(0, buffer_size)
data2 = spec.dma_read(0, buffer_size)
spec.dma_stop()
assert len(data1) == buffer_size
assert len(data2) == buffer_size
assert data1 == data2
@pytest.mark.parametrize("dma_size",
[0, 1, 2, 3] + \
[5, 7, 9] + \
[2**i for i in range(24)])
def test_dma_write(self, spec, dma_size):
@pytest.mark.parametrize("buffer_size",
[2**i for i in range(3, 22)])
def test_dma_write(self, spec, buffer_size):
"""
We just want to see if the DMA engine reports errors. Test the
engine with different sizes, but same offset (default:
0x0). On the engine side we will get several transfers
(scatterlist) depending on the size.
Regressions:
- 0: the driver returns immediatly without starting any DMA transfer
- 1, 2, 3, 4: performing transfers of these sizes led to a failure
"""
spec.dma_start()
spec.dma_write(0, b"\x00" * dma_size)
assert count == dma_size
count = spec.dma_write(0, b"\x00" * buffer_size)
assert count == buffer_size
spec.dma_stop()
......
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