146 lines
3.7 KiB
Python
146 lines
3.7 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 = 33
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PORTS_IN_BLOCK = 34
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BASE_OOM_PATH = "/sys/bus/i2c/devices/{0}-0050/"
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BASE_CPLD_PATH = "/sys/bus/i2c/devices/11-0060/"
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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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_port_to_i2c_mapping = {
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0: [1, 21],
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1: [2, 22],
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2: [3, 23],
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3: [4, 24],
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4: [5, 26],
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5: [6, 25],
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6: [7, 28],
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7: [8, 27],
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8: [9, 17],
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9: [10, 18],
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10: [11, 19],
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11: [12, 20],
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12: [13, 29],
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13: [14, 30],
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14: [15, 31],
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15: [16, 32],
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16: [17, 33],
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17: [18, 34],
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18: [19, 35],
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19: [20, 36],
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20: [21, 45],
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21: [22, 46],
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22: [23, 47],
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23: [24, 48],
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24: [25, 37],
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25: [26, 38],
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26: [27, 39],
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27: [28, 40],
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28: [29, 41],
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29: [30, 42],
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30: [31, 43],
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31: [32, 44],
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32: [33, 15],
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33: [34, 16],
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}
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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.PORTS_IN_BLOCK + 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 __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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self.port_to_eeprom_mapping[x] = eeprom_path.format(
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self._port_to_i2c_mapping[x][1]
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)
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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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present_path = self.BASE_CPLD_PATH + "module_present_" + str(port_num+1)
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self.__port_to_is_present = present_path
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try:
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val_file = open(self.__port_to_is_present)
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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content = val_file.readline().rstrip()
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val_file.close()
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# content is a string, either "0" or "1"
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if content == "1":
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return True
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return False
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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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if port_num < self.port_start or port_num > self.port_end:
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return False
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mod_rst_path = self.BASE_CPLD_PATH + "module_reset_" + str(port_num+1)
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self.__port_to_mod_rst = mod_rst_path
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try:
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reg_file = open(self.__port_to_mod_rst, 'r+')
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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reg_value = '1'
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reg_file.write(reg_value)
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reg_file.close()
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return True
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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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