def test_set_vnic_back_devs_max_capacity_invoked(self, mock_vioget):
mock_sys = sys_wrapper(self.fake_sriovs)
mock_vioget.return_value = [mock.Mock(uuid='vios_uuid1')]
self.adpt.build_href.side_effect = lambda *a, **k: '%s' % a[1]
vnic = card.VNIC.bld(self.adpt, pvid=5)
self.assertEqual(0, len(vnic.back_devs))
tsriov.set_vnic_back_devs(vnic, ['pport_loc%d' % x for x in range(60)],
sys_w=mock_sys, capacity=0.02, redundancy=1,
max_capacity=0.75)
# Ensure that the max and min capacities attached to back_devices as
# expected
self.assertEqual(0.02, vnic.back_devs[0].capacity)
self.assertEqual(0.75, vnic.back_devs[0].max_capacity)
def plug(self, vif, slot_num, new_vif=True):
if not new_vif:
return None
physnet = vif.get_physical_network()
if not physnet:
# Get physnet from neutron network if not present in vif
# TODO(svenkat): This section of code will be eliminated in
# pike release. Design will be in place to fix any vif
# that has physical_network missing. The fix will be in
# compute startup code.
net_id = vif['network']['id']
admin_context = ctx.get_admin_context()
napi = net_api.API()
network = napi.get(admin_context, net_id)
physnet = network.physical_network
LOG.debug("Plugging vNIC SR-IOV vif for physical network %(physnet)s.",
{'physnet': physnet},
instance=self.instance)
# Get the msys
msys = pvm_ms.System.get(self.adapter)[0]
# Physical ports for the given port label
pports_w = sriovtask.find_pports_for_portlabel(physnet, self.adapter,
msys)
pports = [pport.loc_code for pport in pports_w]
if not pports:
raise exception.VirtualInterfacePlugException(
_("Unable to find acceptable Ethernet ports on physical "
"network '%(physnet)s' for instance %(inst)s for SRIOV "
"based VIF with MAC address %(vif_mac)s.") % {
'physnet': physnet,
'inst': self.instance.name,
'vif_mac': vif['address']
})
# MAC
mac_address = pvm_util.sanitize_mac_for_api(vif['address'])
# vlan id
vlan_id = int(vif['details']['vlan'])
# Redundancy: plugin sets from binding:profile, then conf, then default
redundancy = int(vif['details']['redundancy'])
# Capacity: plugin sets from binding:profile, then conf, then default
capacity = vif['details']['capacity']
vnic = pvm_card.VNIC.bld(self.adapter,
vlan_id,
slot_num=slot_num,
mac_addr=mac_address,
allowed_vlans=pvm_util.VLANList.NONE,
allowed_macs=pvm_util.MACList.NONE)
sriovtask.set_vnic_back_devs(vnic,
pports,
sys_w=msys,
redundancy=redundancy,
capacity=capacity,
check_port_status=True)
return vnic.create(parent_type=pvm_lpar.LPAR,
parent_uuid=vm.get_pvm_uuid(self.instance))
def test_set_vnic_back_devs(self, mock_shuffle, mock_vioget):
"""Test set_vnic_back_devs."""
mock_sys = sys_wrapper(self.fake_sriovs)
mock_vioget.return_value = [
mock.Mock(uuid='vios_uuid1'),
mock.Mock(uuid='vios_uuid2'),
mock.Mock(uuid='vios_uuid3')
]
self.adpt.build_href.side_effect = lambda *a, **k: '%s' % a[1]
vnic = card.VNIC.bld(self.adpt, pvid=5)
self.assertEqual(0, len(vnic.back_devs))
# Silly case: redundancy of zero
tsriov.set_vnic_back_devs(vnic, [], sys_w=mock_sys, redundancy=0)
self.assertEqual(0, len(vnic.back_devs))
mock_vioget.assert_called_once_with(self.adpt, None, 0)
cap = 0.019
# Things to note about the following:
# - VIOSes rotate. 1, 2, 3, repeat. If we hadn't mocked shuffle, the
# base order would be random, but they would still rotate in whatever
# that shuffled order was.
# - The least-used (emptiest) physical ports come first...
# - ...except (e.g. 21) we force distribution across cards, so...
# - ...cards alternate until exhausted; hence 5 repeated at the end.
# - Capacity set across the board according to the parameter.
all_back_devs = [
('vios_uuid1', 1, 12, cap), ('vios_uuid2', 5, 52, cap),
('vios_uuid3', 4, 42, cap), ('vios_uuid1', 2, 21, cap),
('vios_uuid2', 5, 54, cap), ('vios_uuid3', 4, 41, cap),
('vios_uuid1', 1, 13, cap), ('vios_uuid2', 5, 56, cap),
('vios_uuid3', 1, 11, cap), ('vios_uuid1', 5, 57, cap),
('vios_uuid2', 5, 55, cap), ('vios_uuid3', 5, 51, cap)
]
# 5/55 is link-down. When it drops off, the last one moves to VIOS 2.
live_back_devs = all_back_devs[:10] + [('vios_uuid2', 5, 51, cap)]
# Use 'em all
tsriov.set_vnic_back_devs(vnic, ['pport_loc%d' % x for x in range(60)],
sys_w=mock_sys,
capacity=cap,
redundancy=12)
self.assertEqual(
all_back_devs,
[(bd.vios_href, bd.sriov_adap_id, bd.pport_id, bd.capacity)
for bd in vnic.back_devs])
# Check port status - 55 drops off
tsriov.set_vnic_back_devs(vnic, ['pport_loc%d' % x for x in range(60)],
sys_w=mock_sys,
capacity=cap,
redundancy=11,
check_port_status=True)
self.assertEqual(
live_back_devs,
[(bd.vios_href, bd.sriov_adap_id, bd.pport_id, bd.capacity)
for bd in vnic.back_devs])
# Fail if we can't satisfy redundancy
self.assertRaises(ex.InsufficientSRIOVCapacity,
tsriov.set_vnic_back_devs,
vnic, ['pport_loc%d' % x for x in range(60)],
sys_w=mock_sys,
capacity=cap,
redundancy=13)
# The passed-in wrapper isn't modified if the method raises.
self.assertEqual(
live_back_devs,
[(bd.vios_href, bd.sriov_adap_id, bd.pport_id, bd.capacity)
for bd in vnic.back_devs])
# Make sure redundancy caps it.
# By reusing vnic without resetting its back_devs, we're proving the
# documented behavior that the method clears first.
tsriov.set_vnic_back_devs(vnic, ['pport_loc%d' % x for x in range(60)],
sys_w=mock_sys,
capacity=cap,
redundancy=5)
self.assertEqual(
all_back_devs[:5],
[(bd.vios_href, bd.sriov_adap_id, bd.pport_id, bd.capacity)
for bd in vnic.back_devs])
self.assertEqual(5, mock_shuffle.call_count)
