267 lines
7.5 KiB
Python
267 lines
7.5 KiB
Python
#!/usr/bin/env python
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try:
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import os
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import sys
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import time
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import errno
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sys.path.append(os.path.dirname(__file__))
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from .platform_thrift_client import ThriftClient
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from .platform_thrift_client import thrift_try
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from sonic_platform_base.sfp_base import SfpBase
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from sonic_platform_base.sonic_sfp.sfputilbase import SfpUtilBase
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except ImportError as e:
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raise ImportError (str(e) + "- required module not found")
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SFP_EEPROM_CACHE = "/var/run/platform/sfp/cache"
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class SfpUtil(SfpUtilBase):
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"""Platform-specific SfpUtil class"""
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PORT_START = 1
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PORT_END = 0
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PORTS_IN_BLOCK = 0
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QSFP_PORT_START = 1
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QSFP_PORT_END = 0
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EEPROM_OFFSET = 0
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QSFP_CHECK_INTERVAL = 4
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@property
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def port_start(self):
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self.update_port_info()
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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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self.update_port_info()
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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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self.update_port_info()
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return range(self.QSFP_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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print "dependency on sysfs has been removed"
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raise Exception()
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def __init__(self):
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self.ready = False
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self.phy_port_dict = {'-1': 'system_not_ready'}
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self.phy_port_cur_state = {}
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self.qsfp_interval = self.QSFP_CHECK_INTERVAL
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if not os.path.exists(os.path.dirname(SFP_EEPROM_CACHE)):
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try:
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os.makedirs(os.path.dirname(SFP_EEPROM_CACHE))
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except OSError as e:
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if e.errno != errno.EEXIST:
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raise
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open(SFP_EEPROM_CACHE, 'ab').close()
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SfpUtilBase.__init__(self)
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def update_port_info(self):
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def qsfp_max_port_get(client):
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return client.pltfm_mgr.pltfm_mgr_qsfp_get_max_port();
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if self.QSFP_PORT_END == 0:
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self.QSFP_PORT_END = thrift_try(qsfp_max_port_get)
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self.PORT_END = self.QSFP_PORT_END
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self.PORTS_IN_BLOCK = self.QSFP_PORT_END
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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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presence = False
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def qsfp_presence_get(client):
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return client.pltfm_mgr.pltfm_mgr_qsfp_presence_get(port_num)
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try:
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presence = thrift_try(qsfp_presence_get)
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except Exception as e:
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print e.__doc__
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print e.message
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return presence
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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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def qsfp_lpmode_get(client):
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return client.pltfm_mgr.pltfm_mgr_qsfp_lpmode_get(port_num)
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lpmode = thrift_try(qsfp_lpmode_get)
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return lpmode
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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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def qsfp_lpmode_set(client):
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return client.pltfm_mgr.pltfm_mgr_qsfp_lpmode_set(port_num, lpmode)
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status = thrift_try(qsfp_lpmode_set)
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return (status == 0)
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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.port_start or port_num > self.port_end:
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return False
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def qsfp_reset(client):
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client.pltfm_mgr.pltfm_mgr_qsfp_reset(port_num, True)
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return client.pltfm_mgr.pltfm_mgr_qsfp_reset(port_num, False)
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status = thrift_try(qsfp_reset)
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return status
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def check_transceiver_change(self):
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if not self.ready:
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return
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self.phy_port_dict = {}
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try:
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client = ThriftClient().open()
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except Exception:
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return
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# Get presence of each SFP
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for port in range(self.port_start, self.port_end + 1):
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try:
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sfp_resent = client.pltfm_mgr.pltfm_mgr_qsfp_presence_get(port)
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except Exception:
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sfp_resent = False
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sfp_state = '1' if sfp_resent else '0'
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if port in self.phy_port_cur_state:
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if self.phy_port_cur_state[port] != sfp_state:
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self.phy_port_dict[port] = sfp_state
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else:
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self.phy_port_dict[port] = sfp_state
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# Update port current state
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self.phy_port_cur_state[port] = sfp_state
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client.close()
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def get_transceiver_change_event(self, timeout=0):
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forever = False
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if timeout == 0:
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forever = True
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elif timeout > 0:
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timeout = timeout / float(1000) # Convert to secs
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else:
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print "get_transceiver_change_event:Invalid timeout value", timeout
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return False, {}
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while forever or timeout > 0:
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if not self.ready:
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try:
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with ThriftClient(): pass
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except Exception:
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pass
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else:
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self.ready = True
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self.phy_port_dict = {}
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break
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elif self.qsfp_interval == 0:
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self.qsfp_interval = self.QSFP_CHECK_INTERVAL
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# Process transceiver plug-in/out event
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self.check_transceiver_change()
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# Break if tranceiver state has changed
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if bool(self.phy_port_dict):
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break
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if timeout:
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timeout -= 1
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if self.qsfp_interval:
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self.qsfp_interval -= 1
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time.sleep(1)
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return self.ready, self.phy_port_dict
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def _get_port_eeprom_path(self, port_num, devid):
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eeprom_path = None
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def qsfp_info_get(client):
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return client.pltfm_mgr.pltfm_mgr_qsfp_info_get(port_num)
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if self.get_presence(port_num):
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eeprom_hex = thrift_try(qsfp_info_get)
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eeprom_cache = open(SFP_EEPROM_CACHE, 'wb')
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eeprom_raw = bytearray.fromhex(eeprom_hex)
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eeprom_cache.write(eeprom_raw)
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eeprom_cache.close()
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eeprom_path = SFP_EEPROM_CACHE
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return eeprom_path
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class Sfp(SfpBase):
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"""Platform-specific Sfp class"""
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sfputil = SfpUtil()
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@staticmethod
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def port_start():
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return Sfp.sfputil.port_start
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@staticmethod
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def port_end():
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return Sfp.sfputil.port_end
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@staticmethod
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def qsfp_ports():
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return Sfp.sfputil.qsfp_ports()
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@staticmethod
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def get_transceiver_change_event(timeout=0):
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return Sfp.sfputil.get_transceiver_change_event()
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def __init__(self, port_num):
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self.port_num = port_num
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SfpBase.__init__(self)
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def get_presence(self):
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return Sfp.sfputil.get_presence(self.port_num)
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def get_lpmode(self):
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return Sfp.sfputil.get_low_power_mode(self.port_num)
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def set_lpmode(self, lpmode):
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return Sfp.sfputil.set_low_power_mode(self.port_num, lpmode)
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def reset(self):
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return Sfp.sfputil.reset(self.port_num)
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def get_transceiver_info(self):
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return Sfp.sfputil.get_transceiver_info_dict(self.port_num)
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def get_transceiver_bulk_status(self):
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return Sfp.sfputil.get_transceiver_dom_info_dict(self.port_num)
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def get_transceiver_threshold_info(self):
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return Sfp.sfputil.get_transceiver_dom_threshold_info_dict(self.port_num)
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def get_change_event(self, timeout=0):
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return Sfp.get_transceiver_change_event(timeout)
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