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[Mellanox] Add a trigger to set LED to blink (#8764)

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Depends on #9358

Why I did it
Adjust LED logical according to hw-mgmt change.

How I did it
Add a trigger to set LED to blink.

How to verify it
Manual test
This commit is contained in:
Junchao-Mellanox 2021-12-04 06:13:20 +08:00 committed by Judy Joseph
parent 4e7550e2bd
commit d683688d41
2 changed files with 40 additions and 4 deletions
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40
platform/mellanox/mlnx-platform-api/sonic_platform/led.py
View File

@ -15,8 +15,9 @@
# limitations under the License.
#
import os
from sonic_py_common.logger import Logger
import time
from sonic_py_common.logger import Logger
from . import utils
logger = Logger()
@ -98,10 +99,13 @@ class Led(object):
return False
if Led.STATUS_LED_COLOR_GREEN_BLINK == color:
self._trigger_blink(self.get_green_led_trigger())
return self._set_led_blink_status(self.get_green_led_delay_on_path(), self.get_green_led_delay_off_path(), Led.LED_BLINK)
elif Led.STATUS_LED_COLOR_RED_BLINK == color:
self._trigger_blink(self.get_red_led_trigger())
return self._set_led_blink_status(self.get_red_led_delay_on_path(), self.get_red_led_delay_off_path(), Led.LED_BLINK)
elif Led.STATUS_LED_COLOR_ORANGE_BLINK == color:
self._trigger_blink(self.get_orange_led_trigger())
return self._set_led_blink_status(self.get_orange_led_delay_on_path(), self.get_orange_led_delay_off_path(), Led.LED_BLINK)
else:
return False
@ -109,19 +113,47 @@ class Led(object):
def _stop_blink(self, led_cap_list):
try:
if Led.STATUS_LED_COLOR_GREEN_BLINK in led_cap_list:
self._set_led_blink_status(self.get_green_led_delay_on_path(), self.get_green_led_delay_off_path(), Led.LED_OFF)
self._untrigger_blink(self.get_green_led_trigger())
if Led.STATUS_LED_COLOR_RED_BLINK in led_cap_list:
self._set_led_blink_status(self.get_red_led_delay_on_path(), self.get_red_led_delay_off_path(), Led.LED_OFF)
self._untrigger_blink(self.get_red_led_trigger())
if Led.STATUS_LED_COLOR_ORANGE_BLINK in led_cap_list:
self._set_led_blink_status(self.get_orange_led_delay_on_path(), self.get_orange_led_delay_off_path(), Led.LED_OFF)
self._untrigger_blink(self.get_orange_led_trigger())
except Exception as e:
return
def _trigger_blink(self, blink_trigger_file):
utils.write_file(blink_trigger_file, 'timer')
def _untrigger_blink(self, blink_trigger_file):
utils.write_file(blink_trigger_file, 'none')
def _set_led_blink_status(self, delay_on_file, delay_off_file, value):
if not self._wait_files_ready((delay_on_file, delay_off_file)):
return False
utils.write_file(delay_on_file, value)
utils.write_file(delay_off_file, value)
return True
def _wait_files_ready(self, file_list):
"""delay_off and delay_on sysfs will be available only if _trigger_blink is called. And once
_trigger_blink is called, driver might need time to prepare delay_off and delay_on. So,
need wait a few seconds here to make sure the sysfs is ready
Args:
file_list (list of str): files to be checked
"""
wait_time = 5.0
initial_sleep = 0.01
while wait_time > 0:
if all([os.path.exists(x) for x in file_list]):
return True
time.sleep(initial_sleep)
wait_time -= initial_sleep
initial_sleep = initial_sleep * 2
return False
def get_status(self):
led_cap_list = self.get_capability()
if led_cap_list is None:

4
platform/mellanox/mlnx-platform-api/tests/test_led.py
View File

@ -34,6 +34,7 @@ from sonic_platform.led import Led
from sonic_platform.psu import FixedPsu, Psu
class TestLed:
@mock.patch('sonic_platform.led.Led._wait_files_ready', mock.MagicMock(return_value=True))
def test_chassis_led(self):
chassis = Chassis()
assert chassis._led is None
@ -96,6 +97,7 @@ class TestLed:
led.get_orange_led_delay_on_path(): Led.LED_OFF,
}
@mock.patch('sonic_platform.led.Led._wait_files_ready', mock.MagicMock(return_value=True))
def test_fan_led(self):
fan_drawer = RealDrawer(0)
self._verify_fan_led(fan_drawer)
@ -135,12 +137,14 @@ class TestLed:
assert obj1.get_status_led() == Led.STATUS_LED_COLOR_GREEN
assert obj1.get_status_led() == Led.STATUS_LED_COLOR_GREEN
@mock.patch('sonic_platform.led.Led._wait_files_ready', mock.MagicMock(return_value=True))
def test_psu_led(self):
psu1 = Psu(0)
psu2 = Psu(1)
physical_led = Psu.get_shared_led()._led
self._verify_shared_led(physical_led, psu1, psu2)
@mock.patch('sonic_platform.led.Led._wait_files_ready', mock.MagicMock(return_value=True))
def test_fixed_psu_led(self):
psu = FixedPsu(0)
physical_led = psu.led