class Psu(PsuBase):
"""Platform-specific Psu class"""
def __init__(self, psu_index):
PsuBase.__init__(self)
self.index = psu_index
for fan_index in range(0, PSU_NUM_FAN[self.index]):
fan = Fan(fan_index, 0, is_psu_fan=True, psu_index=self.index)
self._fan_list.append(fan)
self._api_helper = APIHelper()
def find_value(self, in_string):
result = re.search("^.+ ([0-9a-f]{2}) .+$", in_string)
return result.group(1) if result else result
def get_voltage(self):
"""
Retrieves current PSU voltage output
Returns:
A float number, the output voltage in volts,
e.g. 12.1
"""
psu_voltage = 0.0
psu_vout_key = globals()['PSU{}_VOUT_SS_ID'.format(self.index + 1)]
status, raw_ss_read = self._api_helper.ipmi_raw(
IPMI_SENSOR_NETFN, IPMI_SS_READ_CMD.format(psu_vout_key))
ss_read = raw_ss_read.split()[SS_READ_OFFSET]
# Formula: Rx1x10^-1
psu_voltage = int(ss_read, 16) * math.pow(10, -1)
return psu_voltage
def get_current(self):
"""
Retrieves present electric current supplied by PSU
Returns:
A float number, the electric current in amperes, e.g 15.4
"""
psu_current = 0.0
psu_cout_key = globals()['PSU{}_COUT_SS_ID'.format(self.index + 1)]
status, raw_ss_read = self._api_helper.ipmi_raw(
IPMI_SENSOR_NETFN, IPMI_SS_READ_CMD.format(psu_cout_key))
ss_read = raw_ss_read.split()[SS_READ_OFFSET]
# Formula: Rx5x10^-1
psu_current = int(ss_read, 16) * 5 * math.pow(10, -1)
return psu_current
def get_power(self):
"""
Retrieves current energy supplied by PSU
Returns:
A float number, the power in watts, e.g. 302.6
"""
psu_power = 0.0
psu_pout_key = globals()['PSU{}_POUT_SS_ID'.format(self.index + 1)]
status, raw_ss_read = self._api_helper.ipmi_raw(
IPMI_SENSOR_NETFN, IPMI_SS_READ_CMD.format(psu_pout_key))
ss_read = raw_ss_read.split()[SS_READ_OFFSET]
# Formula: Rx6x10^0
psu_power = int(ss_read, 16) * 6
return psu_power
def get_powergood_status(self):
"""
Retrieves the powergood status of PSU
Returns:
A boolean, True if PSU has stablized its output voltages and passed all
its internal self-tests, False if not.
"""
return self.get_status()
def set_status_led(self, color):
"""
Sets the state of the PSU status LED
Args:
color: A string representing the color with which to set the PSU status LED
Note: Only support green and off
Returns:
bool: True if status LED state is set successfully, False if not
Note
Set manual
ipmitool raw 0x3a 0x09 0x2 0x0
"""
led_cmd = {
self.STATUS_LED_COLOR_GREEN: PSU_LED_GREEN_CMD,
self.STATUS_LED_COLOR_AMBER: PSU_LED_AMBER_CMD,
self.STATUS_LED_COLOR_OFF: PSU_LED_OFF_CMD
}.get(color)
status, set_led = self._api_helper.ipmi_raw(
IPMI_OEM_NETFN, IPMI_SET_PSU_LED_CMD.format(led_cmd))
set_status_led = False if not status else True
return set_status_led
def get_status_led(self):
"""
Gets the state of the PSU status LED
Returns:
A string, one of the predefined STATUS_LED_COLOR_* strings above
"""
status, hx_color = self._api_helper.ipmi_raw(IPMI_OEM_NETFN,
IPMI_GET_PSU_LED_CMD)
status_led = {
"00": self.STATUS_LED_COLOR_OFF,
"01": self.STATUS_LED_COLOR_GREEN,
"02": self.STATUS_LED_COLOR_AMBER,
}.get(hx_color, self.STATUS_LED_COLOR_OFF)
return status_led
def get_name(self):
"""
Retrieves the name of the device
Returns:
string: The name of the device
"""
return PSU_NAME_LIST[self.index]
def get_presence(self):
"""
Retrieves the presence of the PSU
Returns:
bool: True if PSU is present, False if not
"""
psu_presence = False
psu_pstatus_key = globals()['PSU{}_STATUS_REG'.format(self.index + 1)]
status, raw_status_read = self._api_helper.ipmi_raw(
IPMI_SENSOR_NETFN, IPMI_SS_READ_CMD.format(psu_pstatus_key))
status_byte = self.find_value(raw_status_read)
if status:
presence_int = (int(status_byte, 16) >> 0) & 1
psu_presence = True if presence_int else False
return psu_presence
def get_model(self):
"""
Retrieves the model number (or part number) of the device
Returns:
string: Model/part number of device
"""
model = "Unknown"
ipmi_fru_idx = self.index + PSU1_FRU_ID
status, raw_model = self._api_helper.ipmi_fru_id(
ipmi_fru_idx, IPMI_FRU_MODEL_KEY)
fru_pn_list = raw_model.split()
if len(fru_pn_list) > 4:
model = fru_pn_list[4]
return model
def get_serial(self):
"""
Retrieves the serial number of the device
Returns:
string: Serial number of device
"""
serial = "Unknown"
ipmi_fru_idx = self.index + PSU1_FRU_ID
status, raw_model = self._api_helper.ipmi_fru_id(
ipmi_fru_idx, IPMI_FRU_SERIAL_KEY)
fru_sr_list = raw_model.split()
if len(fru_sr_list) > 3:
serial = fru_sr_list[3]
return serial
def get_status(self):
"""
Retrieves the operational status of the device
Returns:
A boolean value, True if device is operating properly, False if not
"""
psu_status = False
psu_pstatus_key = globals()['PSU{}_STATUS_REG'.format(self.index + 1)]
status, raw_status_read = self._api_helper.ipmi_raw(
IPMI_SENSOR_NETFN, IPMI_SS_READ_CMD.format(psu_pstatus_key))
status_byte = self.find_value(raw_status_read)
if status:
failure_detected = (int(status_byte, 16) >> 1) & 1
input_lost = (int(status_byte, 16) >> 3) & 1
psu_status = False if (input_lost or failure_detected) else True
return psu_status
class Fan(FanBase):
"""Platform-specific Fan class"""
def __init__(self,
fan_tray_index,
fan_index=0,
is_psu_fan=False,
psu_index=0):
self.fan_index = fan_index
self.fan_tray_index = fan_tray_index
self.is_psu_fan = is_psu_fan
if self.is_psu_fan:
self.psu_index = psu_index
self._api_helper = APIHelper()
self.index = self.fan_tray_index * 2 + self.fan_index
def get_direction(self):
"""
Retrieves the direction of fan
Returns:
A string, either FAN_DIRECTION_INTAKE or FAN_DIRECTION_EXHAUST
depending on fan direction
"""
direction = self.FAN_DIRECTION_EXHAUST
status, raw_flow = self._api_helper.ipmi_raw(
IPMI_OEM_NETFN, IPMI_AIR_FLOW_CMD.format(hex(self.fan_tray_index)))
if status and raw_flow == "01":
direction = self.FAN_DIRECTION_INTAKE
return direction
def get_speed(self):
"""
Retrieves the speed of fan as a percentage of full speed
Returns:
An integer, the percentage of full fan speed, in the range 0 (off)
to 100 (full speed)
Note:
M = 150
Max F2B = 24700 RPM
Max B2F = 29700 RPM
"""
# ipmitool raw 0x3a 0x03 0x01 0x01 {register}
# register = 22 32 42 52 62 72 82
max_rpm = MAX_OUTLET if self.fan_index % 2 == 0 else MAX_INLET
fan1_ss_start = FAN1_FRONT_SS_ID if self.fan_index % 2 == 0 else FAN1_REAR_SS_ID
ss_id = hex(int(fan1_ss_start, 16) + self.fan_tray_index)
status, raw_ss_read = self._api_helper.ipmi_raw(
IPMI_SENSOR_NETFN, IPMI_FAN_SPEED_CMD.format(ss_id))
ss_read = raw_ss_read.split()[0]
rpm_speed = int(ss_read, 16) * 150
speed = int(float(rpm_speed) / max_rpm * 100)
return speed
def get_target_speed(self):
"""
Retrieves the target (expected) speed of the fan
Returns:
An integer, the percentage of full fan speed, in the range 0 (off)
to 100 (full speed)
Note:
speed_pc = pwm_target/255*100
0 : when PWM mode is use
pwm : when pwm mode is not use
"""
target = 0
return target
def get_speed_tolerance(self):
"""
Retrieves the speed tolerance of the fan
Returns:
An integer, the percentage of variance from target speed which is
considered tolerable
"""
return SPEED_TOLERANCE
def set_speed(self, speed):
"""
Sets the fan speed
Args:
speed: An integer, the percentage of full fan speed to set fan to,
in the range 0 (off) to 100 (full speed)
Returns:
A boolean, True if speed is set successfully, False if not
Notes:
pwm setting mode must set as Manual
manual: ipmitool raw 0x3a 0x06 0x01 0x0
auto: ipmitool raw 0x3a 0x06 0x01 0x1
"""
# ipmitool raw 0x3a 0x03 0x01 0x02 {register} {pwm_speed}
# register = 22 32 42 52 62 72 82
speed_hex = hex(int(float(speed) / 100 * 255))
fan_register_hex = hex(FAN_PWM_REGISTER_START +
(self.fan_tray_index * FAN_PWM_REGISTER_STEP))
set_speed_cmd = IPMI_SET_PWM.format(fan_register_hex, speed_hex)
status, set_speed_res = self._api_helper.ipmi_raw(
IPMI_OEM_NETFN, set_speed_cmd)
set_speed = False if not status else True
return set_speed
def set_status_led(self, color):
"""
Sets the state of the fan module status LED
Args:
color: A string representing the color with which to set the
fan module status LED
Returns:
bool: True if status LED state is set successfully, False if not
Note:
LED setting mode must set as Manual
manual: ipmitool raw 0x3A 0x09 0x02 0x00
auto: ipmitool raw 0x3A 0x09 0x02 0x01
"""
led_cmd = {
self.STATUS_LED_COLOR_GREEN: FAN_LED_GREEN_CMD,
self.STATUS_LED_COLOR_RED: FAN_LED_RED_CMD,
self.STATUS_LED_COLOR_OFF: FAN_LED_OFF_CMD
}.get(color)
fan_selector = hex(int(FAN1_LED_CMD, 16) + self.fan_tray_index)
status, set_led = self._api_helper.ipmi_raw(
IPMI_OEM_NETFN, IPMI_SET_FAN_LED_CMD.format(fan_selector, led_cmd))
set_status_led = False if not status else True
return set_status_led
def get_status_led(self):
"""
Gets the state of the fan status LED
Returns:
A string, one of the predefined STATUS_LED_COLOR_* strings above
Note:
STATUS_LED_COLOR_GREEN = "green"
STATUS_LED_COLOR_AMBER = "amber"
STATUS_LED_COLOR_RED = "red"
STATUS_LED_COLOR_OFF = "off"
"""
fan_selector = hex(int(FAN1_LED_CMD, 16) + self.fan_tray_index)
status, hx_color = self._api_helper.ipmi_raw(
IPMI_OEM_NETFN, IPMI_GET_FAN_LED_CMD.format(fan_selector))
status_led = {
"00": self.STATUS_LED_COLOR_OFF,
"01": self.STATUS_LED_COLOR_GREEN,
"02": self.STATUS_LED_COLOR_RED,
}.get(hx_color, self.STATUS_LED_COLOR_OFF)
return status_led
def get_name(self):
"""
Retrieves the name of the device
Returns:
string: The name of the device
"""
fan_name = FAN_NAME_LIST[
self.fan_tray_index * 2 +
self.fan_index] if not self.is_psu_fan else "PSU-{} FAN-{}".format(
self.psu_index + 1, self.fan_index + 1)
return fan_name
def get_presence(self):
"""
Retrieves the presence of the FAN
Returns:
bool: True if FAN is present, False if not
"""
presence = False
status, raw_present = self._api_helper.ipmi_raw(
IPMI_OEM_NETFN, IPMI_FAN_PRESENT_CMD.format(hex(self.index)))
if status and raw_present == "00":
presence = True
return presence
def get_model(self):
"""
Retrieves the model number (or part number) of the device
Returns:
string: Model/part number of device
"""
model = "Unknown"
ipmi_fru_idx = self.fan_tray_index + FAN1_FRU_ID
status, raw_model = self._api_helper.ipmi_fru_id(
ipmi_fru_idx, IPMI_FRU_MODEL_KEY)
fru_pn_list = raw_model.split()
if len(fru_pn_list) > 4:
model = fru_pn_list[4]
return model
def get_serial(self):
"""
Retrieves the serial number of the device
Returns:
string: Serial number of device
"""
serial = "Unknown"
ipmi_fru_idx = self.fan_tray_index + FAN1_FRU_ID
status, raw_model = self._api_helper.ipmi_fru_id(
ipmi_fru_idx, IPMI_FRU_SERIAL_KEY)
fru_sr_list = raw_model.split()
if len(fru_sr_list) > 3:
serial = fru_sr_list[3]
return serial
def get_status(self):
"""
Retrieves the operational status of the device
Returns:
A boolean value, True if device is operating properly, False if not
"""
return self.get_presence() and self.get_speed() > 0
