06334ff438
Fix sfp reset in Barefoot's sfputil Signed-off-by: Volodymyr Boyko <volodymyrx.boiko@intel.com>
238 lines
6.9 KiB
Python
238 lines
6.9 KiB
Python
#!/usr/bin/env python
|
|
|
|
try:
|
|
import os
|
|
import sys
|
|
import importlib
|
|
import time
|
|
|
|
sys.path.append(os.path.dirname(__file__))
|
|
import pltfm_mgr_rpc
|
|
from pltfm_mgr_rpc.ttypes import *
|
|
|
|
from thrift.transport import TSocket
|
|
from thrift.transport import TTransport
|
|
from thrift.protocol import TBinaryProtocol
|
|
from thrift.protocol import TMultiplexedProtocol
|
|
|
|
from sonic_sfp.sfputilbase import SfpUtilBase
|
|
except ImportError as e:
|
|
raise ImportError (str(e) + "- required module not found")
|
|
|
|
thrift_server = 'localhost'
|
|
transport = None
|
|
pltfm_mgr = None
|
|
|
|
SFP_EEPROM_CACHE = "/var/run/platform/sfp/cache"
|
|
|
|
class SfpUtil(SfpUtilBase):
|
|
"""Platform-specific SfpUtil class"""
|
|
|
|
PORT_START = 1
|
|
PORT_END = 0
|
|
PORTS_IN_BLOCK = 0
|
|
QSFP_PORT_START = 1
|
|
QSFP_PORT_END = 0
|
|
EEPROM_OFFSET = 0
|
|
QSFP_CHECK_INTERVAL = 4
|
|
|
|
@property
|
|
def port_start(self):
|
|
self.update_port_info()
|
|
return self.PORT_START
|
|
|
|
@property
|
|
def port_end(self):
|
|
self.update_port_info()
|
|
return self.PORT_END
|
|
|
|
@property
|
|
def qsfp_ports(self):
|
|
self.update_port_info()
|
|
return range(self.QSFP_PORT_START, self.PORTS_IN_BLOCK + 1)
|
|
|
|
@property
|
|
def port_to_eeprom_mapping(self):
|
|
print "dependency on sysfs has been removed"
|
|
raise Exception()
|
|
|
|
def __init__(self):
|
|
self.ready = False
|
|
self.phy_port_dict = {'-1': 'system_not_ready'}
|
|
self.phy_port_cur_state = {}
|
|
self.qsfp_interval = self.QSFP_CHECK_INTERVAL
|
|
|
|
if not os.path.exists(os.path.dirname(SFP_EEPROM_CACHE)):
|
|
try:
|
|
os.makedirs(os.path.dirname(SFP_EEPROM_CACHE))
|
|
except OSError as e:
|
|
if e.errno != errno.EEXIST:
|
|
raise
|
|
|
|
open(SFP_EEPROM_CACHE, 'ab').close()
|
|
|
|
SfpUtilBase.__init__(self)
|
|
|
|
def update_port_info(self):
|
|
global pltfm_mgr
|
|
|
|
if self.QSFP_PORT_END == 0:
|
|
self.thrift_setup()
|
|
self.QSFP_PORT_END = pltfm_mgr.pltfm_mgr_qsfp_get_max_port();
|
|
self.PORT_END = self.QSFP_PORT_END
|
|
self.PORTS_IN_BLOCK = self.QSFP_PORT_END
|
|
self.thrift_teardown()
|
|
|
|
def thrift_setup(self):
|
|
global thrift_server, transport, pltfm_mgr
|
|
transport = TSocket.TSocket(thrift_server, 9090)
|
|
|
|
transport = TTransport.TBufferedTransport(transport)
|
|
bprotocol = TBinaryProtocol.TBinaryProtocol(transport)
|
|
|
|
pltfm_mgr_client_module = importlib.import_module(".".join(["pltfm_mgr_rpc", "pltfm_mgr_rpc"]))
|
|
pltfm_mgr_protocol = TMultiplexedProtocol.TMultiplexedProtocol(bprotocol, "pltfm_mgr_rpc")
|
|
pltfm_mgr = pltfm_mgr_client_module.Client(pltfm_mgr_protocol)
|
|
|
|
transport.open()
|
|
|
|
def thrift_teardown(self):
|
|
global transport
|
|
transport.close()
|
|
|
|
def get_presence(self, port_num):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
presence = False
|
|
|
|
try:
|
|
self.thrift_setup()
|
|
presence = pltfm_mgr.pltfm_mgr_qsfp_presence_get(port_num)
|
|
self.thrift_teardown()
|
|
except Exception as e:
|
|
print e.__doc__
|
|
print e.message
|
|
|
|
return presence
|
|
|
|
def get_low_power_mode(self, port_num):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
self.thrift_setup()
|
|
lpmode = pltfm_mgr.pltfm_mgr_qsfp_lpmode_get(port_num)
|
|
self.thrift_teardown()
|
|
return lpmode
|
|
|
|
def set_low_power_mode(self, port_num, lpmode):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
self.thrift_setup()
|
|
status = pltfm_mgr.pltfm_mgr_qsfp_lpmode_set(port_num, lpmode)
|
|
self.thrift_teardown()
|
|
return (status == 0)
|
|
|
|
def reset(self, port_num):
|
|
# Check for invalid port_num
|
|
if port_num < self.port_start or port_num > self.port_end:
|
|
return False
|
|
|
|
self.thrift_setup()
|
|
status = pltfm_mgr.pltfm_mgr_qsfp_reset(port_num, True)
|
|
status = pltfm_mgr.pltfm_mgr_qsfp_reset(port_num, False)
|
|
self.thrift_teardown()
|
|
return (status == 0)
|
|
|
|
def check_transceiver_change(self):
|
|
if not self.ready:
|
|
return
|
|
|
|
self.phy_port_dict = {}
|
|
|
|
try:
|
|
self.thrift_setup()
|
|
except:
|
|
return
|
|
|
|
# Get presence of each SFP
|
|
for port in range(self.port_start, self.port_end + 1):
|
|
try:
|
|
sfp_resent = pltfm_mgr.pltfm_mgr_qsfp_presence_get(port)
|
|
except:
|
|
sfp_resent = False
|
|
sfp_state = '1' if sfp_resent else '0'
|
|
|
|
if port in self.phy_port_cur_state:
|
|
if self.phy_port_cur_state[port] != sfp_state:
|
|
self.phy_port_dict[port] = sfp_state
|
|
else:
|
|
self.phy_port_dict[port] = sfp_state
|
|
|
|
# Update port current state
|
|
self.phy_port_cur_state[port] = sfp_state
|
|
|
|
self.thrift_teardown()
|
|
|
|
def get_transceiver_change_event(self, timeout=0):
|
|
forever = False
|
|
if timeout == 0:
|
|
forever = True
|
|
elif timeout > 0:
|
|
timeout = timeout / float(1000) # Convert to secs
|
|
else:
|
|
print "get_transceiver_change_event:Invalid timeout value", timeout
|
|
return False, {}
|
|
|
|
while forever or timeout > 0:
|
|
if not self.ready:
|
|
try:
|
|
self.thrift_setup()
|
|
self.thrift_teardown()
|
|
except:
|
|
pass
|
|
else:
|
|
self.ready = True
|
|
self.phy_port_dict = {}
|
|
break
|
|
elif self.qsfp_interval == 0:
|
|
self.qsfp_interval = self.QSFP_CHECK_INTERVAL
|
|
|
|
# Process transceiver plug-in/out event
|
|
self.check_transceiver_change()
|
|
|
|
# Break if tranceiver state has changed
|
|
if bool(self.phy_port_dict):
|
|
break
|
|
|
|
if timeout:
|
|
timeout -= 1
|
|
|
|
if self.qsfp_interval:
|
|
self.qsfp_interval -= 1
|
|
|
|
time.sleep(1)
|
|
|
|
return self.ready, self.phy_port_dict
|
|
|
|
def _get_port_eeprom_path(self, port_num, devid):
|
|
eeprom_path = None
|
|
|
|
self.thrift_setup()
|
|
presence = pltfm_mgr.pltfm_mgr_qsfp_presence_get(port_num)
|
|
if presence == True:
|
|
eeprom_cache = open(SFP_EEPROM_CACHE, 'wb')
|
|
eeprom_hex = pltfm_mgr.pltfm_mgr_qsfp_info_get(port_num)
|
|
eeprom_raw = bytearray.fromhex(eeprom_hex)
|
|
eeprom_cache.write(eeprom_raw)
|
|
eeprom_cache.close()
|
|
eeprom_path = SFP_EEPROM_CACHE
|
|
self.thrift_teardown()
|
|
|
|
return eeprom_path
|
|
|