[Dell]: Added support for S6100 sfputil.py (#1073)
Check SFP Presence, toggling lpmode, reset, and print eeprom details
This commit is contained in:
paavaanan
Shuotian Cheng
parent
8b8b8a130f
commit
1b20ea1680
@ -1,27 +1,433 @@
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#!/usr/bin/env 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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# +-i2c----+--------+
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# | 6 | 7 |
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# | +-------------+ |
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# | |IOM1 | IOM3 | |
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# | |IOM2 | IOM4 | |
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# | +-------------+ |
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# | 8 | 9 |
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# +--------+--------+
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try:
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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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import time
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import os
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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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class SfpUtil(SfpUtilBase):
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"""Platform-specific SfpUtil class"""
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port_start = 0
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port_end = 63
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ports_in_block = 64
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PORT_START = 0
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PORT_END = 63
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PORTS_IN_BLOCK = 64
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eeprom_offset = 18
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_port_to_eeprom_mapping = {}
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_port_to_i2c_mapping = {
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0: [6, 18, 34, 50, 66],
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1: [6, 19, 35, 51, 67],
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2: [6, 20, 36, 52, 68],
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3: [6, 21, 37, 53, 69],
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4: [6, 22, 38, 54, 70],
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5: [6, 23, 39, 55, 71],
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6: [6, 24, 40, 56, 72],
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7: [6, 25, 41, 57, 73],
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8: [6, 26, 42, 58, 74],
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9: [6, 27, 43, 59, 75],
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10: [6, 28, 44, 60, 76],
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11: [6, 29, 45, 61, 77],
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12: [6, 30, 46, 62, 78],
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13: [6, 31, 47, 63, 79],
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14: [6, 32, 48, 64, 80],
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15: [6, 33, 49, 65, 81],
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16: [8, 18, 34, 50, 66],
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17: [8, 19, 35, 51, 67],
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18: [8, 20, 36, 52, 68],
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19: [8, 21, 37, 53, 69],
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20: [8, 22, 38, 54, 70],
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21: [8, 23, 39, 55, 71],
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22: [8, 24, 40, 56, 72],
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23: [8, 25, 41, 57, 73],
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24: [8, 26, 42, 58, 74],
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25: [8, 27, 43, 59, 75],
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26: [8, 28, 44, 60, 76],
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27: [8, 29, 45, 61, 77],
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28: [8, 30, 46, 62, 78],
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29: [8, 31, 47, 63, 79],
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30: [8, 32, 48, 64, 80],
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31: [8, 33, 49, 65, 81],
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32: [7, 18, 34, 50, 66],
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33: [7, 19, 35, 51, 67],
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34: [7, 20, 36, 52, 68],
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35: [7, 21, 37, 53, 69],
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36: [7, 22, 38, 54, 70],
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37: [7, 23, 39, 55, 71],
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38: [7, 24, 40, 56, 72],
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39: [7, 25, 41, 57, 73],
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40: [7, 26, 42, 58, 74],
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41: [7, 27, 43, 59, 75],
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42: [7, 28, 44, 60, 76],
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43: [7, 29, 45, 61, 77],
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44: [7, 30, 46, 62, 78],
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45: [7, 31, 47, 63, 79],
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46: [7, 32, 48, 64, 80],
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47: [7, 33, 49, 65, 81],
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48: [9, 18, 34, 50, 66],
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49: [9, 19, 35, 51, 67],
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50: [9, 20, 36, 52, 68],
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51: [9, 21, 37, 53, 69],
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52: [9, 22, 38, 54, 70],
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53: [9, 23, 39, 55, 71],
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54: [9, 24, 40, 56, 72],
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55: [9, 25, 41, 57, 73],
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56: [9, 26, 42, 58, 74],
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57: [9, 27, 43, 59, 75],
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58: [9, 28, 44, 60, 76],
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59: [9, 29, 45, 61, 77],
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60: [9, 30, 46, 62, 78],
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61: [9, 31, 47, 63, 79],
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62: [9, 32, 48, 64, 80],
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63: [9, 33, 49, 65, 81]
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}
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port_to_eeprom_mapping = {}
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IOM_1_PORT_START = 0
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IOM_1_PORT_END = 15
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_qsfp_ports = range(0, ports_in_block + 1)
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IOM_2_PORT_START = 16
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IOM_2_PORT_END = 31
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def __init__(self, port_num):
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# Override port_to_eeprom_mapping for class initialization
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eeprom_path = '/sys/class/i2c-adapter/i2c-{0}/{0}-0050/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(x + self.eeprom_offset)
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sfputilbase.__init__(self, port_num)
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IOM_3_PORT_START = 32
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IOM_3_PORT_END = 47
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IOM_4_PORT_START = 48
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IOM_4_PORT_END = 63
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BASE_VAL_PATH="/sys/class/i2c-adapter/i2c-{0}/{0}-003e/"
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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(0, self.PORTS_IN_BLOCK + 1)
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@property
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def iom1_port_start(self):
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return self.IOM_1_PORT_START
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@property
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def iom1_port_end(self):
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return self.IOM_1_PORT_END
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@property
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def iom2_port_start(self):
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return self.IOM_2_PORT_START
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@property
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def iom2_port_end(self):
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return self.IOM_2_PORT_END
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@property
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def iom3_port_start(self):
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return self.IOM_3_PORT_START
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@property
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def iom3_port_end(self):
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return self.IOM_3_PORT_END
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@property
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def iom4_port_start(self):
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return self.IOM_4_PORT_START
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@property
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def iom4_port_end(self):
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return self.IOM_4_PORT_END
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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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@property
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def port_to_i2c_mapping(self):
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return self._port_to_i2c_mapping
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def __init__(self):
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eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/i2c-{1}/{1}-0050/eeprom"
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global port_to_eeprom_path
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for port_num in range(0, self.port_end + 1):
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if port_num >= self.iom1_port_start and port_num <= self.iom1_port_end:
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assigned=0
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#i2c-6
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for x in range(1,5):
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port_to_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[port_num][0], self.port_to_i2c_mapping[port_num][x])
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if ( os.path.isfile(port_to_eeprom_path) ):
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self.port_to_eeprom_mapping[port_num]=port_to_eeprom_path
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assigned=1
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elif (not assigned):
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self.port_to_eeprom_mapping[port_num]="No IOM"
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elif port_num >= self.iom2_port_start and port_num <= self.iom2_port_end:
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assigned=0
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#i2c-8
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for x in range(1,5):
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port_to_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[port_num][0], self.port_to_i2c_mapping[port_num][x])
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if ( os.path.isfile(port_to_eeprom_path) ):
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self.port_to_eeprom_mapping[port_num]=port_to_eeprom_path
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assigned=1
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elif (not assigned):
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self.port_to_eeprom_mapping[port_num]="No IOM"
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elif port_num >= self.iom3_port_start and port_num <= self.iom3_port_end:
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assigned=0
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#i2c-7
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for x in range(1,5):
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port_to_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[port_num][0], self.port_to_i2c_mapping[port_num][x])
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if ( os.path.isfile(port_to_eeprom_path) ):
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self.port_to_eeprom_mapping[port_num]=port_to_eeprom_path
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assigned=1
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elif (not assigned):
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self.port_to_eeprom_mapping[port_num]="No IOM"
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elif port_num >= self.iom4_port_start and port_num <= self.iom4_port_end:
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assigned=0
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#i2c-9
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for x in range(1,5):
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port_to_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[port_num][0], self.port_to_i2c_mapping[port_num][x])
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if ( os.path.isfile(port_to_eeprom_path) ):
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self.port_to_eeprom_mapping[port_num]=port_to_eeprom_path
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assigned=1
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elif (not assigned):
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self.port_to_eeprom_mapping[port_num]="No IOM"
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SfpUtilBase.__init__(self)
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def get_presence(self, port_num):
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global i2c_line
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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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#port_num and i2c match
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if port_num >= self.iom1_port_start and port_num <= self.iom1_port_end:
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i2c_line=14
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elif port_num >= self.iom2_port_start and port_num <= self.iom2_port_end:
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i2c_line=16
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elif port_num >= self.iom3_port_start and port_num <= self.iom3_port_end:
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i2c_line=15
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elif port_num >= self.iom4_port_start and port_num <= self.iom4_port_end:
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i2c_line=17
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try:
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qsfp_path = self.BASE_VAL_PATH.format(i2c_line)+"qsfp_modprs"
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reg_file = open(qsfp_path, "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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content = reg_file.readline().rstrip()
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#Absence of IOM throws read error
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if (content == 'read error'):
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return False
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# content is a string containing the hex representation of the register
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reg_value = int(content, 16)
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#Rationalize port settings
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if port_num > 15:
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port_num=port_num%16
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# Mask off the bit corresponding to our port
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mask = (1 << port_num)
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# ModPrsL is active low
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if reg_value & mask == 0:
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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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# 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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#port_num and i2c match
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if port_num >= self.iom1_port_start and port_num <= self.iom1_port_end:
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i2c_line=14
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elif port_num >= self.iom2_port_start and port_num <= self.iom2_port_end:
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i2c_line=16
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elif port_num >= self.iom3_port_start and port_num <= self.iom3_port_end:
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i2c_line=15
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elif port_num >= self.iom4_port_start and port_num <= self.iom4_port_end:
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i2c_line=17
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try:
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qsfp_path = self.BASE_VAL_PATH.format(i2c_line)+"qsfp_lpmode"
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reg_file = open(qsfp_path, "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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content = reg_file.readline().rstrip()
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#Absence of IOM throws read error
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if (content == 'read error'):
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return False
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# content is a string containing the hex representation of the register
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reg_value = int(content, 16)
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#Rationalize port settings
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if port_num > 15:
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port_num=port_num%16
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# Mask off the bit corresponding to our port
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mask = (1 << port_num)
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# LPMode is active high
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if reg_value & mask == 0:
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return False
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return True
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def set_low_power_mode(self, port_num, lpmode):
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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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#port_num and i2c match
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if port_num >= self.iom1_port_start and port_num <= self.iom1_port_end:
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i2c_line=14
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elif port_num >= self.iom2_port_start and port_num <= self.iom2_port_end:
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i2c_line=16
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elif port_num >= self.iom3_port_start and port_num <= self.iom3_port_end:
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i2c_line=15
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elif port_num >= self.iom4_port_start and port_num <= self.iom4_port_end:
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i2c_line=17
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try:
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qsfp_path = self.BASE_VAL_PATH.format(i2c_line)+"qsfp_lpmode"
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reg_file = open(qsfp_path, "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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content = reg_file.readline().rstrip()
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#Absence of IOM throws read error
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if (content == 'read error'):
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return False
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# content is a string containing the hex representation of the register
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reg_value = int(content, 16)
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#Rationalize port settings
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if port_num > 15:
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port_num=port_num%16
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# Mask off the bit corresponding to our port
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mask = (1 << port_num)
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# LPMode is active high; set or clear the bit accordingly
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if lpmode is True:
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reg_value = reg_value | mask
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else:
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reg_value = reg_value & ~mask
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# Convert our register value back to a hex string and write back
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content = hex(reg_value)
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reg_file.seek(0)
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reg_file.write(content)
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reg_file.close()
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return True
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def reset(self, port_num):
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global i2c_line
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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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#port_num and i2c match
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if port_num >= self.iom1_port_start and port_num <= self.iom1_port_end:
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i2c_line=14
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elif port_num >= self.iom2_port_start and port_num <= self.iom2_port_end:
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i2c_line=16
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elif port_num >= self.iom3_port_start and port_num <= self.iom3_port_end:
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i2c_line=15
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elif port_num >= self.iom4_port_start and port_num <= self.iom4_port_end:
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i2c_line=17
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try:
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qsfp_path = self.BASE_VAL_PATH.format(i2c_line)+"qsfp_lpmode"
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reg_file = open(qsfp_path, "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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content = reg_file.readline().rstrip()
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#Absence of IOM throws read error
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if (content == 'read error'):
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print("it's empty");
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return False
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# File content is a string containing the hex representation of the register
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reg_value = int(content, 16)
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#Rationalize port settings
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if port_num > 15:
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port_num=port_num%16
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# Mask off the bit corresponding to our port
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mask = (1 << port_num)
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# ResetL is active low
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reg_value = reg_value & ~mask
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# Convert our register value back to a hex string and write back
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reg_file.seek(0)
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reg_file.write(hex(reg_value))
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reg_file.close()
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# Sleep 1 second to allow it to settle
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time.sleep(1)
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# Flip the bit back high and write back to the register to take port out of reset
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try:
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qsfp_path = self.BASE_VAL_PATH.format(i2c_line)+"qsfp_lpmode"
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reg_file = open(qsfp_path, "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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reg_value = reg_value | mask
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reg_file.seek(0)
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reg_file.write(hex(reg_value))
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reg_file.close()
|
||||
|
||||
return True
|
||||
|
||||
Loading…
Reference in New Issue
Block a user