[sfputil]: Add support for SFP presence, low-power mode and reset (#877)
- Update sfputil plugins for Dell FORCE10-S6000, Arista 7050-QX-32, 7050-QX-32-S
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@ -1,9 +1,12 @@
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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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try:
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try:
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import arista.utils.sonic_sfputil as arista_sfputil
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import arista.utils.sonic_sfputil as arista_sfputil
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except ImportError, e:
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except ImportError as e:
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raise ImportError (str(e) + "- required module not found")
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raise ImportError("%s - required module not found" % str(e))
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sfputil = arista_sfputil.getSfpUtil()
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SfpUtil = arista_sfputil.getSfpUtil()
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@ -1,9 +1,12 @@
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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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try:
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try:
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import arista.utils.sonic_sfputil as arista_sfputil
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import arista.utils.sonic_sfputil as arista_sfputil
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except ImportError, e:
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except ImportError as e:
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raise ImportError (str(e) + "- required module not found")
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raise ImportError("%s - required module not found" % str(e))
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sfputil = arista_sfputil.getSfpUtil()
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SfpUtil = arista_sfputil.getSfpUtil()
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@ -1,27 +1,175 @@
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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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try:
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try:
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from sonic_sfp.sfputilbase import sfputilbase
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import time
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except ImportError, e:
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from sonic_sfp.sfputilbase import SfpUtilBase
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raise ImportError (str(e) + "- required module not found")
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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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class SfpUtil(SfpUtilBase):
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"""Platform specific sfputil class"""
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"""Platform-specific SfpUtil class"""
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port_start = 0
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PORT_START = 0
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port_end = 31
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PORT_END = 31
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ports_in_block = 32
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PORTS_IN_BLOCK = 32
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eeprom_offset = 20
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EEPROM_OFFSET = 20
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port_to_eeprom_mapping = {}
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_port_to_eeprom_mapping = {}
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_qsfp_ports = range(0, ports_in_block + 1)
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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 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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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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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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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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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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try:
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reg_file = open("/sys/devices/platform/dell-s6000-cpld.0/qsfp_modprs")
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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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# content is a string containing the hex representation of the register
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reg_value = int(content, 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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try:
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reg_file = open("/sys/devices/platform/dell-s6000-cpld.0/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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# content is a string containing the hex representation of the register
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reg_value = int(content, 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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try:
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reg_file = open("/sys/devices/platform/dell-s6000-cpld.0/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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# content is a string containing the hex representation of the register
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reg_value = int(content, 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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QSFP_RESET_REGISTER_DEVICE_FILE = "/sys/devices/platform/dell-s6000-cpld.0/qsfp_reset"
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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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try:
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reg_file = open(QSFP_RESET_REGISTER_DEVICE_FILE, "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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# 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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# 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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reg_file = open(QSFP_RESET_REGISTER_DEVICE_FILE, "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()
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return True
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@ -25,7 +25,7 @@ Cmnd_Alias READ_ONLY_CMDS = /usr/bin/decode-syseeprom, \
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/usr/bin/lldpctl, \
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/usr/bin/lldpctl, \
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/usr/bin/lldpshow, \
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/usr/bin/lldpshow, \
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/usr/bin/sensors, \
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/usr/bin/sensors, \
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/usr/bin/sfputil, \
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/usr/bin/sfputil show *, \
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/usr/bin/vtysh -c show *, \
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/usr/bin/vtysh -c show *, \
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/bin/cat /var/log/syslog, \
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/bin/cat /var/log/syslog, \
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/usr/bin/tail -f /var/log/syslog
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/usr/bin/tail -f /var/log/syslog
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@ -1 +1 @@
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Subproject commit a90b9fc5b085cdb99d10d338a23daa66c7f351b2
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Subproject commit 51bbe2cd86af7df20b27e0cd1f02c2ad08ab2f03
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@ -1 +1 @@
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Subproject commit c7f6ff677b54eb401e7b2fd3a3d9c4072325bb78
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Subproject commit ac7ea4f3b9dcc5cef15cc7ec0e796cde8a7f8ab8
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