def configure_ovs_dpdk(self):
"""Configure DPDK specific bits in Open vSwitch.
:returns: Whether something changed
:rtype: bool
"""
something_changed = False
dpdk_context = os_context.OVSDPDKDeviceContext(
bridges_key=self.bridges_key)
opvs = ch_ovsdb.SimpleOVSDB('ovs-vsctl').open_vswitch
other_config_fmt = 'other_config:{}'
for row in opvs:
for k, v in (
('dpdk-lcore-mask', dpdk_context.cpu_mask()),
('dpdk-socket-mem', dpdk_context.socket_memory()),
('dpdk-init', 'true'),
('dpdk-extra', dpdk_context.pci_whitelist()),
):
if row.get(other_config_fmt.format(k)) != v:
something_changed = True
if v:
opvs.set('.', other_config_fmt.format(k), v)
else:
opvs.remove('.', 'other_config', k)
return something_changed
def ovs_dpdk_cpu_overlap_check(self):
"""Check for overlap between dpdk-lcore-mask and pmd-cpu-mask.
:returns: True if an overlap is detected
:rtype: bool
"""
overlap_detected = False
dpdk_context = os_context.OVSDPDKDeviceContext(
bridges_key=self.bridges_key)
if (int(dpdk_context.pmd_cpu_mask(), 16)
& int(dpdk_context.cpu_mask(), 16)):
overlap_detected = True
return overlap_detected