2017-08-23 14:08:43 -05:00
|
|
|
# sfputil.py
|
|
|
|
#
|
|
|
|
# Platform-specific SFP transceiver interface for SONiC
|
|
|
|
#
|
|
|
|
try:
|
|
|
|
import time
|
2018-10-02 07:36:28 -05:00
|
|
|
import os
|
2019-06-28 23:35:58 -05:00
|
|
|
import string
|
|
|
|
from ctypes import create_string_buffer
|
2017-08-23 14:08:43 -05:00
|
|
|
from sonic_sfp.sfputilbase import SfpUtilBase
|
|
|
|
except ImportError as e:
|
|
|
|
raise ImportError("%s - required module not found" % str(e))
|
|
|
|
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
# from xcvrd
|
2019-07-24 14:14:43 -05:00
|
|
|
SFP_STATUS_INSERTED = '1'
|
|
|
|
SFP_STATUS_REMOVED = '0'
|
|
|
|
|
|
|
|
|
2017-08-23 14:08:43 -05:00
|
|
|
class SfpUtil(SfpUtilBase):
|
|
|
|
"""Platform-specific SfpUtil class"""
|
|
|
|
|
2019-07-24 14:14:43 -05:00
|
|
|
PORT_START = 1
|
|
|
|
PORT_END = 54
|
|
|
|
PORTS_IN_BLOCK = 54
|
|
|
|
QSFP_PORT_START = 49
|
|
|
|
QSFP_PORT_END = 54
|
2017-08-23 14:08:43 -05:00
|
|
|
|
2017-11-22 04:59:28 -06:00
|
|
|
BASE_VAL_PATH = "/sys/class/i2c-adapter/i2c-{0}/{1}-0050/"
|
2018-03-29 01:49:27 -05:00
|
|
|
BASE_OOM_PATH = "/sys/bus/i2c/devices/{0}-0050/"
|
2018-10-02 07:36:28 -05:00
|
|
|
BASE_CPLD2_PATH = "/sys/bus/i2c/devices/{0}-0061/"
|
|
|
|
BASE_CPLD3_PATH = "/sys/bus/i2c/devices/{0}-0062/"
|
|
|
|
I2C_BUS_ORDER = -1
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
# The sidebands of QSFP is different.
|
2019-07-24 14:14:43 -05:00
|
|
|
qsfp_sb_map = [0, 2, 4, 1, 3, 5]
|
2017-11-22 04:59:28 -06:00
|
|
|
|
|
|
|
_port_to_is_present = {}
|
2017-12-21 03:54:32 -06:00
|
|
|
_port_to_lp_mode = {}
|
2017-08-23 14:08:43 -05:00
|
|
|
|
|
|
|
_port_to_eeprom_mapping = {}
|
2017-11-22 04:59:28 -06:00
|
|
|
_port_to_i2c_mapping = {
|
2020-11-25 12:28:36 -06:00
|
|
|
1: [1, 2],
|
|
|
|
2: [2, 3],
|
|
|
|
3: [3, 4],
|
|
|
|
4: [4, 5],
|
|
|
|
5: [5, 6],
|
|
|
|
6: [6, 7],
|
|
|
|
7: [7, 8],
|
|
|
|
8: [8, 9],
|
|
|
|
9: [9, 10],
|
|
|
|
10: [10, 11],
|
|
|
|
11: [11, 12],
|
|
|
|
12: [12, 13],
|
|
|
|
13: [13, 14],
|
|
|
|
14: [14, 15],
|
|
|
|
15: [15, 16],
|
|
|
|
16: [16, 17],
|
|
|
|
17: [17, 18],
|
|
|
|
18: [18, 19],
|
|
|
|
19: [19, 20],
|
|
|
|
20: [20, 21],
|
|
|
|
21: [21, 22],
|
|
|
|
22: [22, 23],
|
|
|
|
23: [23, 24],
|
|
|
|
24: [24, 25],
|
|
|
|
25: [25, 26],
|
|
|
|
26: [26, 27],
|
|
|
|
27: [27, 28],
|
|
|
|
28: [28, 29],
|
|
|
|
29: [29, 30],
|
|
|
|
30: [30, 31],
|
|
|
|
31: [31, 32],
|
|
|
|
32: [32, 33],
|
|
|
|
33: [33, 34],
|
|
|
|
34: [34, 35],
|
|
|
|
35: [35, 36],
|
|
|
|
36: [36, 37],
|
|
|
|
37: [37, 38],
|
|
|
|
38: [38, 39],
|
|
|
|
39: [39, 40],
|
|
|
|
40: [40, 41],
|
|
|
|
41: [41, 42],
|
|
|
|
42: [42, 43],
|
|
|
|
43: [43, 44],
|
|
|
|
44: [44, 45],
|
|
|
|
45: [45, 46],
|
|
|
|
46: [46, 47],
|
|
|
|
47: [47, 48],
|
|
|
|
48: [48, 49],
|
|
|
|
49: [49, 50], # QSFP49
|
|
|
|
50: [51, 52],
|
|
|
|
51: [53, 54],
|
|
|
|
52: [50, 51],
|
|
|
|
53: [52, 53],
|
|
|
|
54: [54, 55], # QSFP54
|
|
|
|
}
|
2017-08-23 14:08:43 -05:00
|
|
|
|
|
|
|
@property
|
|
|
|
def port_start(self):
|
|
|
|
return self.PORT_START
|
|
|
|
|
|
|
|
@property
|
|
|
|
def port_end(self):
|
|
|
|
return self.PORT_END
|
|
|
|
|
2017-12-21 03:54:32 -06:00
|
|
|
@property
|
|
|
|
def qsfp_port_start(self):
|
|
|
|
return self.QSFP_PORT_START
|
|
|
|
|
|
|
|
@property
|
|
|
|
def qsfp_port_end(self):
|
|
|
|
return self.QSFP_PORT_END
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2017-08-23 14:08:43 -05:00
|
|
|
@property
|
|
|
|
def qsfp_ports(self):
|
2020-11-25 12:28:36 -06:00
|
|
|
return list(range(self.QSFP_PORT_START, self.PORTS_IN_BLOCK + 1))
|
2017-08-23 14:08:43 -05:00
|
|
|
|
|
|
|
@property
|
|
|
|
def port_to_eeprom_mapping(self):
|
|
|
|
return self._port_to_eeprom_mapping
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
# Two i2c buses might get flipped order, check them both.
|
2018-10-02 07:36:28 -05:00
|
|
|
def update_i2c_order(self):
|
|
|
|
if self.I2C_BUS_ORDER < 0:
|
|
|
|
eeprom_path = "/sys/bus/i2c/devices/1-0057/eeprom"
|
|
|
|
if os.path.exists(eeprom_path):
|
|
|
|
self.I2C_BUS_ORDER = 0
|
|
|
|
eeprom_path = "/sys/bus/i2c/devices/0-0057/eeprom"
|
|
|
|
if os.path.exists(eeprom_path):
|
|
|
|
self.I2C_BUS_ORDER = 1
|
2020-11-25 12:28:36 -06:00
|
|
|
return self.I2C_BUS_ORDER
|
2018-10-02 07:36:28 -05:00
|
|
|
|
2017-08-23 14:08:43 -05:00
|
|
|
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
|
|
|
|
|
2018-10-02 07:36:28 -05:00
|
|
|
order = self.update_i2c_order()
|
2019-07-24 14:14:43 -05:00
|
|
|
if port_num <= 24:
|
|
|
|
present_path = self.BASE_CPLD2_PATH.format(order)
|
2018-03-29 01:49:27 -05:00
|
|
|
else:
|
2018-10-02 07:36:28 -05:00
|
|
|
present_path = self.BASE_CPLD3_PATH.format(order)
|
2019-07-24 14:14:43 -05:00
|
|
|
present_path = present_path + "module_present_" + str(port_num)
|
2018-03-29 01:49:27 -05:00
|
|
|
self.__port_to_is_present = present_path
|
2017-11-22 04:59:28 -06:00
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
content = "0"
|
2017-08-23 14:08:43 -05:00
|
|
|
try:
|
2017-11-22 04:59:28 -06:00
|
|
|
val_file = open(self.__port_to_is_present)
|
2020-02-07 09:53:55 -06:00
|
|
|
content = val_file.readline().rstrip()
|
|
|
|
val_file.close()
|
2017-08-23 14:08:43 -05:00
|
|
|
except IOError as e:
|
2020-11-25 12:28:36 -06:00
|
|
|
print("Error: unable to access file: %s" % str(e))
|
2017-08-23 14:08:43 -05:00
|
|
|
return False
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2017-11-22 04:59:28 -06:00
|
|
|
if content == "1":
|
2017-08-23 14:08:43 -05:00
|
|
|
return True
|
|
|
|
|
|
|
|
return False
|
|
|
|
|
2018-10-02 07:36:28 -05:00
|
|
|
def qsfp_sb_remap(self, port_num):
|
|
|
|
qsfp_start = self.qsfp_port_start
|
2019-07-24 14:14:43 -05:00
|
|
|
qsfp_index = port_num - qsfp_start
|
|
|
|
qsfp_index = self.qsfp_sb_map[qsfp_index]
|
2018-10-02 07:36:28 -05:00
|
|
|
return qsfp_start+qsfp_index
|
|
|
|
|
2019-06-28 23:35:58 -05:00
|
|
|
def get_low_power_mode_cpld(self, port_num):
|
2017-12-21 03:54:32 -06:00
|
|
|
if port_num < self.qsfp_port_start or port_num > self.qsfp_port_end:
|
|
|
|
return False
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2018-10-02 07:36:28 -05:00
|
|
|
order = self.update_i2c_order()
|
|
|
|
lp_mode_path = self.BASE_CPLD3_PATH.format(order)
|
2020-11-25 12:28:36 -06:00
|
|
|
lp_mode_path = lp_mode_path + "module_lp_mode_"
|
2018-10-02 07:36:28 -05:00
|
|
|
q = self.qsfp_sb_remap(port_num)
|
|
|
|
lp_mode_path = lp_mode_path + str(q)
|
2020-11-25 12:28:36 -06:00
|
|
|
|
|
|
|
content = "0"
|
2017-12-21 03:54:32 -06:00
|
|
|
try:
|
2018-03-29 01:49:27 -05:00
|
|
|
val_file = open(lp_mode_path)
|
2020-02-07 09:53:55 -06:00
|
|
|
content = val_file.readline().rstrip()
|
|
|
|
val_file.close()
|
2017-12-21 03:54:32 -06:00
|
|
|
except IOError as e:
|
2020-11-25 12:28:36 -06:00
|
|
|
print("Error: unable to access file: %s" % str(e))
|
2017-12-21 03:54:32 -06:00
|
|
|
return False
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2017-12-21 03:54:32 -06:00
|
|
|
if content == "1":
|
|
|
|
return True
|
2017-08-23 14:08:43 -05:00
|
|
|
|
2017-12-21 03:54:32 -06:00
|
|
|
return False
|
|
|
|
|
2019-06-28 23:35:58 -05:00
|
|
|
def get_low_power_mode(self, port_num):
|
2017-12-21 03:54:32 -06:00
|
|
|
if port_num < self.qsfp_port_start or port_num > self.qsfp_port_end:
|
2019-06-28 23:35:58 -05:00
|
|
|
return False
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2019-06-28 23:35:58 -05:00
|
|
|
if not self.get_presence(port_num):
|
|
|
|
return self.get_low_power_mode_cpld(port_num)
|
|
|
|
|
2017-12-21 03:54:32 -06:00
|
|
|
try:
|
2019-06-28 23:35:58 -05:00
|
|
|
eeprom = None
|
|
|
|
|
|
|
|
eeprom = open(self.port_to_eeprom_mapping[port_num], mode="rb", buffering=0)
|
|
|
|
eeprom.seek(93)
|
|
|
|
lpmode = ord(eeprom.read(1))
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
if not (lpmode & 0x1): # 'Power override' bit is 0
|
2019-06-28 23:35:58 -05:00
|
|
|
return self.get_low_power_mode_cpld(port_num)
|
|
|
|
else:
|
|
|
|
if ((lpmode & 0x2) == 0x2):
|
2020-11-25 12:28:36 -06:00
|
|
|
return True # Low Power Mode if "Power set" bit is 1
|
2019-06-28 23:35:58 -05:00
|
|
|
else:
|
2020-11-25 12:28:36 -06:00
|
|
|
return False # High Power Mode if "Power set" bit is 0
|
2019-06-28 23:35:58 -05:00
|
|
|
except IOError as err:
|
2020-11-25 12:28:36 -06:00
|
|
|
print("Error: unable to open file: %s" % str(err))
|
2017-12-21 03:54:32 -06:00
|
|
|
return False
|
2019-06-28 23:35:58 -05:00
|
|
|
finally:
|
|
|
|
if eeprom is not None:
|
|
|
|
eeprom.close()
|
|
|
|
time.sleep(0.01)
|
2017-12-21 03:54:32 -06:00
|
|
|
|
2019-06-28 23:35:58 -05:00
|
|
|
def set_low_power_mode(self, port_num, lpmode):
|
|
|
|
if port_num < self.qsfp_port_start or port_num > self.qsfp_port_end:
|
|
|
|
return False
|
2017-12-21 03:54:32 -06:00
|
|
|
|
2019-06-28 23:35:58 -05:00
|
|
|
try:
|
|
|
|
eeprom = None
|
2017-12-21 03:54:32 -06:00
|
|
|
|
2019-06-28 23:35:58 -05:00
|
|
|
if not self.get_presence(port_num):
|
2020-11-25 12:28:36 -06:00
|
|
|
return False # Port is not present, unable to set the eeprom
|
2019-06-28 23:35:58 -05:00
|
|
|
|
|
|
|
# Fill in write buffer
|
2020-11-25 12:28:36 -06:00
|
|
|
regval = 0x3 if lpmode else 0x1 # 0x3:Low Power Mode, 0x1:High Power Mode
|
2019-06-28 23:35:58 -05:00
|
|
|
buffer = create_string_buffer(1)
|
|
|
|
buffer[0] = chr(regval)
|
|
|
|
|
|
|
|
# Write to eeprom
|
|
|
|
eeprom = open(self.port_to_eeprom_mapping[port_num], mode="r+b", buffering=0)
|
|
|
|
eeprom.seek(93)
|
|
|
|
eeprom.write(buffer[0])
|
|
|
|
return True
|
|
|
|
except IOError as err:
|
2020-11-25 12:28:36 -06:00
|
|
|
print("Error: unable to open file: %s" % str(err))
|
2019-06-28 23:35:58 -05:00
|
|
|
return False
|
|
|
|
finally:
|
|
|
|
if eeprom is not None:
|
|
|
|
eeprom.close()
|
|
|
|
time.sleep(0.01)
|
2017-08-23 14:08:43 -05:00
|
|
|
|
|
|
|
def reset(self, port_num):
|
2017-12-21 03:54:32 -06:00
|
|
|
if port_num < self.qsfp_port_start or port_num > self.qsfp_port_end:
|
|
|
|
return False
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2018-10-02 07:36:28 -05:00
|
|
|
order = self.update_i2c_order()
|
|
|
|
lp_mode_path = self.BASE_CPLD3_PATH.format(order)
|
2020-11-25 12:28:36 -06:00
|
|
|
mod_rst_path = lp_mode_path + "module_reset_"
|
2018-10-02 07:36:28 -05:00
|
|
|
q = self.qsfp_sb_remap(port_num)
|
|
|
|
mod_rst_path = mod_rst_path + str(q)
|
2017-12-21 03:54:32 -06:00
|
|
|
try:
|
2019-07-24 14:14:43 -05:00
|
|
|
reg_file = open(mod_rst_path, 'r+', buffering=0)
|
2017-12-21 03:54:32 -06:00
|
|
|
except IOError as e:
|
2020-11-25 12:28:36 -06:00
|
|
|
print("Error: unable to open file: %s" % str(e))
|
2017-12-21 03:54:32 -06:00
|
|
|
return False
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
# toggle reset
|
2018-10-02 07:36:28 -05:00
|
|
|
reg_file.seek(0)
|
|
|
|
reg_file.write('0')
|
|
|
|
time.sleep(1)
|
|
|
|
reg_file.seek(0)
|
|
|
|
reg_file.write('1')
|
2017-12-21 03:54:32 -06:00
|
|
|
reg_file.close()
|
2018-09-12 11:40:29 -05:00
|
|
|
return True
|
2019-07-24 14:14:43 -05:00
|
|
|
|
|
|
|
@property
|
|
|
|
def _get_presence_bitmap(self):
|
2020-11-25 12:28:36 -06:00
|
|
|
nodes = []
|
2019-07-24 14:14:43 -05:00
|
|
|
order = self.update_i2c_order()
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2019-07-24 14:14:43 -05:00
|
|
|
present_path = self.BASE_CPLD2_PATH.format(order)
|
|
|
|
nodes.append(present_path + "module_present_all")
|
|
|
|
present_path = self.BASE_CPLD3_PATH.format(order)
|
|
|
|
nodes.append(present_path + "module_present_all")
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
bitmap = ""
|
|
|
|
for node in nodes:
|
2019-07-24 14:14:43 -05:00
|
|
|
try:
|
|
|
|
reg_file = open(node)
|
2020-11-25 12:28:36 -06:00
|
|
|
|
2019-07-24 14:14:43 -05:00
|
|
|
except IOError as e:
|
2020-11-25 12:28:36 -06:00
|
|
|
print("Error: unable to open file: %s" % str(e))
|
2019-07-24 14:14:43 -05:00
|
|
|
return False
|
|
|
|
bitmap += reg_file.readline().rstrip() + " "
|
|
|
|
reg_file.close()
|
|
|
|
|
|
|
|
rev = bitmap.split(" ")
|
|
|
|
rev = "".join(rev[::-1])
|
2020-11-25 12:28:36 -06:00
|
|
|
return int(rev, 16)
|
|
|
|
|
|
|
|
data = {'valid': 0, 'last': 0, 'present': 0}
|
2019-07-24 14:14:43 -05:00
|
|
|
|
|
|
|
def get_transceiver_change_event(self, timeout=2000):
|
|
|
|
now = time.time()
|
|
|
|
port_dict = {}
|
|
|
|
port = 0
|
|
|
|
|
|
|
|
if timeout < 1000:
|
|
|
|
timeout = 1000
|
2020-11-25 12:28:36 -06:00
|
|
|
timeout = (timeout) / float(1000) # Convert to secs
|
2019-07-24 14:14:43 -05:00
|
|
|
|
|
|
|
if now < (self.data['last'] + timeout) and self.data['valid']:
|
|
|
|
return True, {}
|
|
|
|
|
|
|
|
reg_value = self._get_presence_bitmap
|
|
|
|
changed_ports = self.data['present'] ^ reg_value
|
|
|
|
if changed_ports:
|
2020-11-25 12:28:36 -06:00
|
|
|
for port in range(self.port_start, self.port_end+1):
|
2019-07-24 14:14:43 -05:00
|
|
|
# Mask off the bit corresponding to our port
|
|
|
|
fp_port = self._port_to_i2c_mapping[port][0]
|
|
|
|
mask = (1 << (fp_port - 1))
|
|
|
|
if changed_ports & mask:
|
|
|
|
|
|
|
|
if (reg_value & mask) == 0:
|
|
|
|
port_dict[port] = SFP_STATUS_REMOVED
|
|
|
|
else:
|
|
|
|
port_dict[port] = SFP_STATUS_INSERTED
|
|
|
|
|
2020-11-25 12:28:36 -06:00
|
|
|
# Update cache
|
2019-07-24 14:14:43 -05:00
|
|
|
self.data['present'] = reg_value
|
|
|
|
self.data['last'] = now
|
|
|
|
self.data['valid'] = 1
|
|
|
|
|
|
|
|
return True, port_dict
|
|
|
|
else:
|
|
|
|
return True, {}
|
|
|
|
return False, {}
|
|
|
|
|
|
|
|
def __init__(self):
|
|
|
|
eeprom_path = self.BASE_OOM_PATH + "eeprom"
|
|
|
|
|
|
|
|
for x in range(self.port_start, self.port_end+1):
|
|
|
|
self.port_to_eeprom_mapping[x] = eeprom_path.format(
|
|
|
|
self._port_to_i2c_mapping[x][1]
|
2020-11-25 12:28:36 -06:00
|
|
|
)
|
2019-07-24 14:14:43 -05:00
|
|
|
|
|
|
|
SfpUtilBase.__init__(self)
|