def get_sensor_reading(name, ipmicmd):
value = None
sensor = None
health = pygconst.Health.Ok
states = []
if name in fpc_sensors and 'elements' not in fpc_sensors[name]:
sensor = fpc_sensors[name]
value = sensor['provider'](ipmicmd)
else:
bname, _, idx = name.rpartition(' ')
idx = int(idx)
if bname in fpc_sensors and idx <= fpc_sensors[bname]['elements']:
sensor = fpc_sensors[bname]
if 'returns' in sensor:
health, states = sensor['provider'](ipmicmd, idx)
else:
value = sensor['provider'](ipmicmd, idx)
if sensor is not None:
return sdr.SensorReading(
{
'name': name,
'imprecision': None,
'value': value,
'states': states,
'state_ids': [],
'health': health,
'type': sensor['type']
}, sensor['units'])
raise Exception('Sensor not found: ' + name)
class Energy(object):
def __init__(self, ipmicmd):
self.ipmicmd = ipmicmd
def get_energy_sensor(self):
"""read the cpu usage
"""
try:
rsp = self.ipmicmd.xraw_command(netfn=0x04,
command=0x2d,
bridge_request={
"addr": 0x2c,
"channel": 0x06
},
data=[0xbe])
except pygexc.IpmiException, ie:
return
cpu_usage = ord(rsp["data"][0]) * 100 / 0xff
#mimic the power sensor
temp = {
'name': "CPU_Usage",
'health': const.Health.Ok,
'states': [],
'state_ids': [],
'type': "Processor",
'units': "%",
'value': cpu_usage,
'imprecision': None
}
yield (sdr.SensorReading(temp, temp['units']))
def get_energy_sensor(self):
snapshot_buffer = self.read_snapshot_buffer()
#search the metering data if server supports subsystem power metering
if self.has_subsystem_metering and len(snapshot_buffer) > 37:
start = len(snapshot_buffer) - 37
found_cpu_power = False
found_mem_power = False
#search the pattern from tail, only for CPU(0) / MEM(1) / PSU(2) / FAN(3)
for i in range(4):
#metering data start from: count (1 byte), subsystem type (1 byte), subsystem power metering (8 bytes)...
if ord(snapshot_buffer[start + i*9]) == 4-i:
found_subsystem = True
sub_start = start + 1 + i*9
for j in range(4-i):
if not ord(snapshot_buffer[sub_start + j*9]) in (1, 2, 3, 4):
found_subsystem = False
break
if found_subsystem:
start = start + i*9
index = 0
while index < ord(snapshot_buffer[start]):
#CPU power metering
if ord(snapshot_buffer[start + 1 + index*9]) == 0x01:
temp = ''.join(snapshot_buffer[start + 2 + index*9 : start + 10 + index*9])
self.cpu_power = struct.unpack('>Q', temp)[0]
found_cpu_power = True
#Memory power metering
elif ord(snapshot_buffer[start + 1 + index*9]) == 0x02:
temp = ''.join(snapshot_buffer[start + 2 + index*9 : start + 10 + index*9])
self.memory_power = struct.unpack('>Q', temp)[0]
found_mem_power = True
index += 1
if self.has_timestamp:
temp = ''.join(snapshot_buffer[start-8 : start])
self.timestamp = struct.unpack('>Q', temp)[0]
break
#mimic the power sensor
if found_cpu_power and self.timestamp:
temp = {'name': "CPU Power", 'health': const.Health.Ok, 'states': [], 'state_ids': [self.timestamp],
'type': "Current", 'units': "millijoule", 'value': self.cpu_power, 'imprecision' : None}
yield(sdr.SensorReading(temp, temp['units']))
if found_mem_power and self.timestamp:
temp = {'name': "MEM Power", 'health': const.Health.Ok, 'states': [], 'state_ids': [self.timestamp],
'type': "Current", 'units': "millijoule", 'value': self.memory_power, 'imprecision' : None}
yield(sdr.SensorReading(temp, temp['units']))
def get_oem_sensor_reading(self, name, ipmicmd):
if self._energymanager is None:
self._energymanager = energy.EnergyManager(ipmicmd)
if name == 'AC Energy':
kwh = self._energymanager.get_ac_energy(ipmicmd)
elif name == 'DC Energy':
kwh = self._energymanager.get_dc_energy(ipmicmd)
else:
raise pygexc.UnsupportedFunctionality('No sunch sensor ' + name)
return sdr.SensorReading({'name': name, 'imprecision': None,
'value': kwh, 'states': [],
'state_ids': [],
'health': pygconst.Health.Ok,
'type': 'Energy'}, 'kWh')
