openstack/nova
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Test multi create with PCI in placement

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blueprint: pci-device-tracking-in-placement
Change-Id: Ibca8bc47b84a9302d2e18ac9f6a9d223ea70ad15
This commit is contained in:
Balazs Gibizer 2022-08-25 19:21:25 +02:00
parent bb3e2c301b
commit 2cf58d3d1e
1 changed files with 61 additions and 0 deletions
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61
nova/tests/functional/libvirt/test_pci_sriov_servers.py
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@ -2941,6 +2941,67 @@ class PCIServersTest(_PCIServersTestBase):
self.assert_no_pci_healing("test_compute0")
self.assert_no_pci_healing("test_compute1")
def test_multi_create(self):
self.start_compute(
hostname='test_compute0',
pci_info=fakelibvirt.HostPCIDevicesInfo(num_pci=3))
self.assertPCIDeviceCounts('test_compute0', total=3, free=3)
test_compute0_placement_pci_view = {
"inventories": {
"0000:81:00.0": {self.PCI_RC: 1},
"0000:81:01.0": {self.PCI_RC: 1},
"0000:81:02.0": {self.PCI_RC: 1},
},
"traits": {
"0000:81:00.0": [],
"0000:81:01.0": [],
"0000:81:02.0": [],
},
"usages": {
"0000:81:00.0": {self.PCI_RC: 0},
"0000:81:01.0": {self.PCI_RC: 0},
"0000:81:02.0": {self.PCI_RC: 0},
},
"allocations": {},
}
self.assert_placement_pci_view(
"test_compute0", **test_compute0_placement_pci_view)
extra_spec = {'pci_passthrough:alias': f'{self.ALIAS_NAME}:1'}
pci_flavor_id = self._create_flavor(extra_spec=extra_spec)
body = self._build_server(flavor_id=pci_flavor_id, networks='none')
body.update(
{
"min_count": "2",
}
)
self.api.post_server({'server': body})
servers = self.api.get_servers(detail=False)
for server in servers:
self._wait_for_state_change(server, 'ACTIVE')
self.assertEqual(2, len(servers))
self.assertPCIDeviceCounts('test_compute0', total=3, free=1)
# we have no way to influence which instance takes which device, so
# we need to look at the nova DB to properly assert the placement
# allocation
devices = objects.PciDeviceList.get_by_compute_node(
self.ctxt,
objects.ComputeNode.get_by_nodename(self.ctxt, 'test_compute0').id,
)
for dev in devices:
if dev.instance_uuid:
test_compute0_placement_pci_view["usages"][
dev.address][self.PCI_RC] = 1
test_compute0_placement_pci_view["allocations"][
dev.instance_uuid] = {dev.address: {self.PCI_RC: 1}}
self.assert_placement_pci_view(
"test_compute0", **test_compute0_placement_pci_view)
self.assert_no_pci_healing("test_compute0")
class PCIServersWithPreferredNUMATest(_PCIServersTestBase):