173 lines
4.2 KiB
Python
173 lines
4.2 KiB
Python
#!/usr/bin/env python
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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, e:
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raise ImportError (str(e) + "- required module not found")
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SFP_STATUS_INSERTED = '1'
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SFP_STATUS_REMOVED = '0'
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class SfpUtil(SfpUtilBase):
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"""Platform specific SfpUtill class"""
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_port_start = 0
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_port_end = 53
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_qsfp_port_start = 48
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_ports_in_block = 54
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_port_to_eeprom_mapping = {}
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_port_to_i2c_mapping = {
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0 : 37,
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1 : 38,
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2 : 39,
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3 : 40,
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4 : 41,
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5 : 42,
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6 : 43,
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7 : 44,
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8 : 45,
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9 : 46,
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10 : 47,
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11 : 48,
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12 : 49,
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13 : 50,
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14 : 51,
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15 : 52,
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16 : 53,
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17 : 54,
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18 : 55,
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19 : 56,
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20 : 57,
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21 : 58,
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22 : 59,
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23 : 60,
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24 : 61,
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25 : 62,
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26 : 63,
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27 : 64,
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28 : 65,
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29 : 66,
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30 : 67,
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31 : 68,
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32 : 69,
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33 : 70,
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34 : 71,
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35 : 72,
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36 : 73,
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37 : 74,
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38 : 75,
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39 : 76,
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40 : 77,
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41 : 78,
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42 : 79,
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43 : 80,
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44 : 81,
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45 : 82,
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46 : 83,
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47 : 84,
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48 : 21,
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49 : 22,
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50 : 23,
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51 : 24,
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52 : 25,
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53 : 26,
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}
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_qsfp_ports = range(_qsfp_port_start, _ports_in_block + 1)
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_present_status = dict()
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def __init__(self):
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eeprom_path = '/sys/bus/i2c/devices/{0}-0050/sfp_eeprom'
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for x in range(self._port_start, self._port_end + 1):
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port_eeprom_path = eeprom_path.format(self._port_to_i2c_mapping[x])
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self._port_to_eeprom_mapping[x] = port_eeprom_path
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self._present_status[x] = SFP_STATUS_REMOVED
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SfpUtilBase.__init__(self)
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def reset(self, port_num):
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# Check for invalid port_num
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if port_num < self._qsfp_port_start or port_num > self._port_end:
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print "Error: port %d is not qsfp port" % port_num
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return False
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path = "/sys/bus/i2c/devices/{0}-0050/sfp_port_reset"
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port_ps = path.format(self._port_to_i2c_mapping[port_num])
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try:
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reg_file = open(port_ps, 'w')
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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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#toggle reset
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reg_file.seek(0)
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reg_file.write('1')
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time.sleep(1)
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reg_file.seek(0)
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reg_file.write('0')
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reg_file.close()
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return True
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def set_low_power_mode(self, port_nuM, lpmode):
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raise NotImplementedError
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def get_low_power_mode(self, port_num):
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raise NotImplementedError
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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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path = "/sys/bus/i2c/devices/{0}-0050/sfp_is_present"
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port_ps = path.format(self._port_to_i2c_mapping[port_num])
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try:
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reg_file = open(port_ps)
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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 = reg_file.readline().rstrip()
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if reg_value == '1':
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return True
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return False
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def get_transceiver_change_event(self, timeout=0):
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raise NotImplementedError
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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 self._qsfp_ports
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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 get_transceiver_change_event(self, timeout=0):
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ret_present = dict()
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for phy_port in range(self._port_start, self._port_end + 1):
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last_present_status = SFP_STATUS_INSERTED if self.get_presence(phy_port) else SFP_STATUS_REMOVED
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if self._present_status[phy_port] != last_present_status:
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ret_present[phy_port] = last_present_status
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self._present_status[phy_port] = last_present_status
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time.sleep(2)
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return True, ret_present
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