95 lines
2.3 KiB
Python
95 lines
2.3 KiB
Python
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# sfputil.py
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#
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# Platform-specific SFP transceiver interface for SONiC
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#
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try:
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import time
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from sonic_sfp.sfputilbase import SfpUtilBase
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except ImportError as e:
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raise ImportError("%s - required module not found" % str(e))
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class SfpUtil(SfpUtilBase):
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"""Platform-specific SfpUtil class"""
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PORT_START = 0
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PORT_END = 128
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BASE_OOM_PATH = "/sys/bus/i2c/devices/{0}-0050/"
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_port_to_is_present = {}
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_port_to_lp_mode = {}
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_port_to_eeprom_mapping = {}
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@property
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def port_start(self):
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return self.PORT_START
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@property
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def port_end(self):
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return self.PORT_END
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@property
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def qsfp_ports(self):
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return range(self.PORT_START, self.PORT_END + 1)
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@property
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def port_to_eeprom_mapping(self):
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return self._port_to_eeprom_mapping
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def sfp_map(self, index):
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port = index + 1
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base = ((port-1)/8*8) + 10
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index = (port - 1) % 8
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index = 7 - index
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if (index%2):
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index = index -1
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else:
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index = index +1
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bus = base + index
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return bus
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def __init__(self):
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eeprom_path = self.BASE_OOM_PATH + "eeprom"
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for x in range(0, self.port_end+1):
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bus = self.sfp_map(x)
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self.port_to_eeprom_mapping[x] = eeprom_path.format(
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bus)
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SfpUtilBase.__init__(self)
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def get_presence(self, port_num):
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# Check for invalid port_num
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if port_num < self.port_start or port_num > self.port_end:
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return False
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eeprom_path = self.port_to_eeprom_mapping[port_num]
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with open(eeprom_path) as f:
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try:
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content = f.read(1)
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except IOError as e:
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#Not print any error, for if any, treat as Not present.
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return False
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return True
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def get_low_power_mode(self, port_num):
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raise NotImplementedError
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def set_low_power_mode(self, port_num, lpmode):
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raise NotImplementedError
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def reset(self, port_num):
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raise NotImplementedError
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def get_transceiver_change_event(self):
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"""
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TODO: This function need to be implemented
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when decide to support monitoring SFP(Xcvrd)
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on this platform.
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"""
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raise NotImplementedError
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