[v6,00/10] dts: add hello world test case

  Add code needed to run the HelloWorld testcase which just runs
the helloworld dpdk application.

The patchset currently heavily refactors this original DTS code needed
to run the testcase:
* The whole architecture has been redone into more sensible class
  hierarchy
* DPDK build on the System under Test
* DPDK eal args construction, app running and shutting down
* Optional SUT hugepage memory configuration
  The optional part is DTS either configuring them or not. They still
must be configured even the user doesn't want DTS to do that.
* Test runner
* Test results
* TestSuite class
* Test runner parts interfacing with TestSuite
* The HelloWorld testsuite itself

The code is divided into sub-packages, some of which are divided
further.

There patch may need to be divided into smaller chunks. If so, proposals
on where exactly to split it would be very helpful.

v5:
Documentation updates about running as root and hugepage configuration.
Fixed multiple problems with cpu filtering.
Other minor issues, such as typos and renaming variables.

v6:
Moved utility functions into different files, mainly to remove util.py's
dependency on settings.py, but also better code organization.

Juraj Linkeš (10):
  dts: add node and os abstractions
  dts: add ssh command verification
  dts: add dpdk build on sut
  dts: add dpdk execution handling
  dts: add node memory setup
  dts: add test suite module
  dts: add hello world testsuite
  dts: add test suite config and runner
  dts: add test results module
  doc: update dts setup and test suite cookbook

 doc/guides/tools/dts.rst                      | 165 ++++++++-
 dts/conf.yaml                                 |  22 +-
 dts/framework/config/__init__.py              | 130 ++++++-
 dts/framework/config/conf_yaml_schema.json    | 172 +++++++++-
 dts/framework/dts.py                          | 185 ++++++++--
 dts/framework/exception.py                    | 100 +++++-
 dts/framework/logger.py                       |  24 +-
 dts/framework/remote_session/__init__.py      |  30 +-
 dts/framework/remote_session/linux_session.py | 107 ++++++
 dts/framework/remote_session/os_session.py    | 175 ++++++++++
 dts/framework/remote_session/posix_session.py | 221 ++++++++++++
 .../remote_session/remote/__init__.py         |  16 +
 .../remote_session/remote/remote_session.py   | 155 +++++++++
 .../{ => remote}/ssh_session.py               |  90 ++++-
 .../remote_session/remote_session.py          |  95 ------
 dts/framework/settings.py                     |  81 ++++-
 dts/framework/test_result.py                  | 316 ++++++++++++++++++
 dts/framework/test_suite.py                   | 254 ++++++++++++++
 dts/framework/testbed_model/__init__.py       |  19 +-
 dts/framework/testbed_model/hw/__init__.py    |  27 ++
 dts/framework/testbed_model/hw/cpu.py         | 274 +++++++++++++++
 .../testbed_model/hw/virtual_device.py        |  16 +
 dts/framework/testbed_model/node.py           | 172 ++++++++--
 dts/framework/testbed_model/sut_node.py       | 309 +++++++++++++++++
 dts/framework/utils.py                        |  56 +++-
 dts/tests/TestSuite_hello_world.py            |  64 ++++
 26 files changed, 3064 insertions(+), 211 deletions(-)
 create mode 100644 dts/framework/remote_session/linux_session.py
 create mode 100644 dts/framework/remote_session/os_session.py
 create mode 100644 dts/framework/remote_session/posix_session.py
 create mode 100644 dts/framework/remote_session/remote/__init__.py
 create mode 100644 dts/framework/remote_session/remote/remote_session.py
 rename dts/framework/remote_session/{ => remote}/ssh_session.py (65%)
 delete mode 100644 dts/framework/remote_session/remote_session.py
 create mode 100644 dts/framework/test_result.py
 create mode 100644 dts/framework/test_suite.py
 create mode 100644 dts/framework/testbed_model/hw/__init__.py
 create mode 100644 dts/framework/testbed_model/hw/cpu.py
 create mode 100644 dts/framework/testbed_model/hw/virtual_device.py
 create mode 100644 dts/framework/testbed_model/sut_node.py
 create mode 100644 dts/tests/TestSuite_hello_world.py