180 lines
4.6 KiB
Python
Executable File
180 lines
4.6 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
try:
|
|
import time
|
|
from sonic_sfp.sfputilbase import SfpUtilBase
|
|
except ImportError, e:
|
|
raise ImportError (str(e) + "- required module not found")
|
|
|
|
|
|
class SfpUtil(SfpUtilBase):
|
|
"""Platform specific SfpUtill class"""
|
|
|
|
_port_start = 0
|
|
_port_end = 31
|
|
ports_in_block = 32
|
|
|
|
_port_to_eeprom_mapping = {}
|
|
port_to_i2c_mapping = {
|
|
1 : 32,
|
|
2 : 33,
|
|
3 : 34,
|
|
4 : 35,
|
|
5 : 36,
|
|
6 : 37,
|
|
7 : 38,
|
|
8 : 39,
|
|
9 : 40,
|
|
10 : 41,
|
|
11 : 42,
|
|
12 : 43,
|
|
13 : 44,
|
|
14 : 45,
|
|
15 : 46,
|
|
16 : 47,
|
|
17 : 48,
|
|
18 : 49,
|
|
19 : 50,
|
|
20 : 51,
|
|
21 : 52,
|
|
22 : 53,
|
|
23 : 54,
|
|
24 : 55,
|
|
25 : 56,
|
|
26 : 57,
|
|
27 : 58,
|
|
28 : 59,
|
|
29 : 60,
|
|
30 : 61,
|
|
31 : 62,
|
|
32 : 63,
|
|
}
|
|
|
|
_qsfp_ports = range(0, ports_in_block + 1)
|
|
|
|
def __init__(self):
|
|
eeprom_path = '/sys/bus/i2c/devices/{0}-0050/eeprom'
|
|
for x in range(0, self._port_end + 1):
|
|
port_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[x+1])
|
|
self._port_to_eeprom_mapping[x] = port_eeprom_path
|
|
SfpUtilBase.__init__(self)
|
|
|
|
def reset(self, port_num):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
try:
|
|
reg_file = open("/sys/class/cpld-qsfp28/port-"+str(port_num+1)+"/reset", "r+")
|
|
except IOError as e:
|
|
print "Error: unable to open file: %s" % str(e)
|
|
return False
|
|
|
|
reg_value = 0
|
|
reg_file.write(hex(reg_value))
|
|
reg_file.close()
|
|
|
|
# Sleep 2 second to allow it to settle
|
|
time.sleep(2)
|
|
|
|
# Flip the value back write back to the register to take port out of reset
|
|
try:
|
|
reg_file = open("/sys/class/cpld-qsfp28/port-"+str(port_num+1)+"/reset", "r+")
|
|
except IOError as e:
|
|
print "Error: unable to open file: %s" % str(e)
|
|
return False
|
|
|
|
reg_value = 1
|
|
reg_file.write(hex(reg_value))
|
|
reg_file.close()
|
|
|
|
return True
|
|
|
|
def set_low_power_mode(self, port_num, lpmode):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
try:
|
|
reg_file = open("/sys/class/cpld-qsfp28/port-"+str(port_num+1)+"/lpmode", "r+")
|
|
except IOError as e:
|
|
print "Error: unable to open file: %s" % str(e)
|
|
return False
|
|
|
|
reg_value = int(reg_file.readline().rstrip())
|
|
|
|
# LPMode is active high; set or clear the bit accordingly
|
|
if lpmode is True:
|
|
reg_value = 1
|
|
else:
|
|
reg_value = 0
|
|
|
|
reg_file.write(hex(reg_value))
|
|
reg_file.close()
|
|
|
|
return True
|
|
|
|
def get_low_power_mode(self, port_num):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
try:
|
|
reg_file = open("/sys/class/cpld-qsfp28/port-"+str(port_num+1)+"/lpmode")
|
|
except IOError as e:
|
|
print "Error: unable to open file: %s" % str(e)
|
|
return False
|
|
|
|
reg_value = int(reg_file.readline().rstrip())
|
|
|
|
if reg_value == 0:
|
|
return False
|
|
|
|
return True
|
|
|
|
def get_presence(self, port_num):
|
|
# Check for invalid port_num
|
|
if port_num < self._port_start or port_num > self._port_end:
|
|
return False
|
|
|
|
#path = "/sys/class/cpld-qsfp28/port-{0}/module_present"
|
|
#port_ps = path.format(self.port_to_i2c_mapping[port_num+1])
|
|
|
|
try:
|
|
reg_file = open("/sys/class/cpld-qsfp28/port-"+str(port_num+1)+"/module_present")
|
|
except IOError as e:
|
|
print "Error: unable to open file: %s" % str(e)
|
|
return False
|
|
|
|
reg_value = reg_file.readline().rstrip()
|
|
if reg_value == '1':
|
|
return True
|
|
|
|
return False
|
|
|
|
@property
|
|
def port_start(self):
|
|
return self._port_start
|
|
|
|
@property
|
|
def port_end(self):
|
|
return self._port_end
|
|
|
|
@property
|
|
def qsfp_ports(self):
|
|
return range(0, self.ports_in_block + 1)
|
|
|
|
@property
|
|
def port_to_eeprom_mapping(self):
|
|
return self._port_to_eeprom_mapping
|
|
|
|
def get_transceiver_change_event(self):
|
|
"""
|
|
TODO: This function need to be implemented
|
|
when decide to support monitoring SFP(Xcvrd)
|
|
on this platform.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
|