206 lines
5.9 KiB
Python
206 lines
5.9 KiB
Python
#! /usr/bin/python
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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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import sys
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sys.path.append('/usr/lib/python2.7/dist-packages/sonic_sfp/')
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from sff8472 import sff8472InterfaceId
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from sff8472 import sff8472Dom
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from sff8436 import sff8436InterfaceId
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from sff8436 import sff8436Dom
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except ImportError, 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 = 53
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PORTS_IN_BLOCK = 54
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EEPROM_OFFSET = 11
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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 + 48, self.PORTS_IN_BLOCK)
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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 = "/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)
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def get_presence(self, port_num):
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bit_mask = port_num % 8
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if port_num <= 7:
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presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs1"
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elif 8 <= port_num and port_num <= 15:
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presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs2"
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elif 16 <= port_num and port_num <= 23:
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presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs3"
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elif 24 <= port_num and port_num <= 27:
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presence_path = "/sys/bus/i2c/devices/3-0031/sfp_mod_abs4"
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elif 28 <= port_num and port_num <= 31:
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presence_path = "/sys/bus/i2c/devices/4-0032/sfp_mod_abs1"
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bit_mask = bit_mask - 4
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elif 32 <= port_num and port_num <= 39:
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presence_path = "/sys/bus/i2c/devices/4-0032/sfp_mod_abs2"
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elif 40 <= port_num and port_num <= 47:
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presence_path = "/sys/bus/i2c/devices/4-0032/sfp_mod_abs3"
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elif 48 <= port_num and port_num <= 71:
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presence_path = "/sys/bus/i2c/devices/4-0032/qsfp_modprs"
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else:
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return False
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try:
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reg_file = open(presence_path, "rb")
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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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reg_value = int(content, 16)
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reg_file.close()
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if reg_value & (1 << bit_mask) == 0:
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return True
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else:
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return False
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def get_low_power_mode(self, port_num):
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if port_num in self.qsfp_ports:
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bit_mask = port_num % 8
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else:
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return False
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try:
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reg_file = open("/sys/bus/i2c/devices/4-0032/qsfp_lpmode")
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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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content = reg_file.readline().rstrip()
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reg_value = int(content, 16)
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reg_file.close()
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if reg_value & (1 << bit_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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if port_num in self.qsfp_ports:
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bit_mask = port_num % 8
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else:
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return False
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try:
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reg_file = open("/sys/bus/i2c/devices/4-0032/qsfp_lpmode", "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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reg_value = int(content, 16)
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if lpmode is True:
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reg_value = reg_value | (1 << bit_mask)
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else:
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reg_value = reg_value & ~(1 << bit_mask)
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reg_file.seek(0)
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reg_file.write(str(reg_value))
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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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if port_num in self.qsfp_ports:
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bit_mask = (port_num % 8) + 2
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else:
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return False
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try:
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reg_file = open("/sys/bus/i2c/devices/4-0032/reset_control", "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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reg_value = int(content, 16)
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reg_value = reg_value & ~(1 << bit_mask)
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reg_file.seek(0)
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reg_file.write(str(reg_value))
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reg_file.close()
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time.sleep(1)
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try:
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reg_file = open("/sys/bus/i2c/devices/4-0032/reset_control", "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 | (1 << bit_mask)
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reg_file.seek(0)
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reg_file.write(str(reg_value))
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reg_file.close()
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return True
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def get_eeprom_dict(self, port_num):
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if not self.get_presence(port_num):
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return None
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sfp_data = {}
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eeprom_ifraw = self.get_eeprom_raw(port_num)
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eeprom_domraw = self.get_eeprom_dom_raw(port_num)
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if eeprom_ifraw is None:
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return None
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if port_num in self.qsfp_ports:
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sfpi_obj = sff8436InterfaceId(eeprom_ifraw)
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if sfpi_obj is not None:
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sfp_data['interface'] = sfpi_obj.get_data_pretty()
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sfpd_obj = sff8436Dom(eeprom_ifraw)
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if sfpd_obj is not None:
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sfp_data['dom'] = sfpd_obj.get_data_pretty()
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return sfp_data
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sfpi_obj = sff8472InterfaceId(eeprom_ifraw)
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if sfpi_obj is not None:
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sfp_data['interface'] = sfpi_obj.get_data_pretty()
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cal_type = sfpi_obj.get_calibration_type()
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if eeprom_domraw is not None:
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sfpd_obj = sff8472Dom(eeprom_domraw, cal_type)
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if sfpd_obj is not None:
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sfp_data['dom'] = sfpd_obj.get_data_pretty()
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return sfp_data
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