From: Maxim Chicherin <maximc@xxxxxxxxxxxx> Base class for future tests which allows user-set parameters: device name, IB port, GID index and PKey index can be provided to the tests. If not, they're selected at random. Signed-off-by: Maxim Chicherin <maximc@xxxxxxxxxxxx> Signed-off-by: Noa Osherovich <noaos@xxxxxxxxxxxx> --- tests/base.py | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) diff --git a/tests/base.py b/tests/base.py index 88f00e07b326..e141b83dea0e 100644 --- a/tests/base.py +++ b/tests/base.py @@ -2,9 +2,11 @@ # Copyright (c) 2019 Mellanox Technologies, Inc . All rights reserved. See COPYING file import unittest +import random from pyverbs.device import Context import pyverbs.device as d +import pyverbs.enums as e from pyverbs.pd import PD @@ -26,6 +28,105 @@ class PyverbsAPITestCase(unittest.TestCase): tup[0].close() +class RDMATestCase(unittest.TestCase): + """ + A base class for test cases which provides the option for user parameters. + These can be provided by manually adding the test case to the runner: + suite = unittest.TestSuite() + ... # Regular auto-detection of test cases, no parameters used. + # Now follows your manual addition of test cases e.g: + suite.addTest(RDMATestCase.parametrize(<TestCaseName>, dev_name='..', + ib_port=1, gid_index=3, + pkey_index=42)) + """ + ZERO_GID = '0000:0000:0000:0000' + + def __init__(self, methodName='runTest', dev_name=None, ib_port=None, + gid_index=None, pkey_index=None): + super(RDMATestCase, self).__init__(methodName) + self.dev_name = dev_name + self.ib_port = ib_port + self.gid_index = gid_index + self.pkey_index = pkey_index + + @staticmethod + def parametrize(testcase_klass, dev_name=None, ib_port=None, gid_index=None, + pkey_index=None): + """ + Create a test suite containing all the tests from the given subclass + with the given dev_name, port, gid index and pkey_index. + """ + loader = unittest.TestLoader() + names = loader.getTestCaseNames(testcase_klass) + suite = unittest.TestSuite() + for n in names: + suite.addTest(testcase_klass(n, dev_name=dev_name, ib_port=ib_port, + gid_index=gid_index, + pkey_index=pkey_index)) + return suite + + def setUp(self): + """ + Verify that the test case has dev_name, ib_port, gid_index and pkey index. + If not provided by the user, a random valid combination will be used. + """ + if self.pkey_index is None: + # To avoid iterating the entire pkeys table, if a pkey index wasn't + # provided, use index 0 which is always valid + self.pkey_index = 0 + + self.args = [] + if self.dev_name is not None: + ctx = d.Context(name=self.dev_name) + if self.ib_port is not None: + if self.gid_index is not None: + # We have all we need, return + return + else: + # Add avaiable GIDs of the given dev_name + port + self._add_gids_per_port(ctx, self.dev_name, self.ib_port) + else: + # Add available GIDs for each port of the given dev_name + self._add_gids_per_device(ctx, self.dev_name) + else: + # Iterate available devices, add available GIDs for each of + # their ports + lst = d.get_device_list() + for dev in lst: + dev_name = dev.name.decode() + ctx = d.Context(name=dev_name) + self._add_gids_per_device(ctx, dev_name) + + if not self.args: + raise unittest.SkipTest('No dev/port/GID combinations, please check your setup and try again') + # Choose one combination and use it + args = random.choice(self.args) + self.dev_name = args[0] + self.ib_port = args[1] + self.gid_index = args[2] + + def _add_gids_per_port(self, ctx, dev, port): + idx = 0 + ll = ctx.query_port(port).link_layer + while True: + gid = ctx.query_gid(port, idx) + if gid.gid[-19:] == self.ZERO_GID: + # No point iterating on + break + if ll == e.IBV_LINK_LAYER_ETHERNET and gid.gid[0:4] == 'fe80': + # Use only IPv4/IPv6 GIDs + idx += 1 + continue + else: + self.args.append([dev, port, idx]) + idx += 1 + + def _add_gids_per_device(self, ctx, dev): + port_count = ctx.query_device().phys_port_cnt + for port in range(port_count): + self._add_gids_per_port(ctx, dev, port+1) + + class BaseResources(object): """ BaseResources class is a base aggregator object which contains basic -- 2.21.0