SPDKDRIVER is a virtual interface which provides common methods
for specific drivers (such as: VHOSTDRIVER, NVMFDRIVER, etc.).
For this reason, the Cyborg agent should invoke these drivers
via py-spdk[0] to communicate with the backend SPDK-base app server.
The py-spdk is management lib for SPDK applications which need to
be imported into the cyborg, so we put the pyspdk lib into cyborg/
cyborg/accelerator/drivers/spdk/util/. There are some unit tests
we added in cyborg/cyborg/tests/unit/accelerator/drivers/spdk/.
Now We are first implementing the unit tests of
test_discover_accelerator() and test_accelerator_list(),
and the rest will be added later.
For example:
When the Cyborg agent call the NVMFDRIVER.discover_accelerator(),
the return value we get is:
{
'server': 'nvmf_tgt',
'bdevs': [{
"num_blocks": 131072,
"name": "nvme1",
"block_size": 512,
......
}]
'subsystems': [{
"core": 0,
"nqn": "nqn.2018-01.org.nvmexpress.discovery",
"hosts": [],
......
}]
}
[0] The implementation of py-spdk is subbmitted to
https://review.gerrithub.io/#/c/379741/, please visit it.
Change-Id: I2d0e4dc6b58e725584d22ee85961877a870c68a7
488cc340ef