[Platform] [Marvell] SFP util changes to support GPIO mux over i2c_mux_gpio (#4522)
SFP util changes to support GPIO mux over i2c_mux_gpio Signed-off-by: Antony Rheneus <arheneus@marvell.com>
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arheneus@marvell.com
GitHub
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be25581063
@ -4,10 +4,17 @@ try:
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import os
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import time
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import re
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import sys
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import glob
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from sonic_sfp.sfputilbase import SfpUtilBase
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except ImportError, e:
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raise ImportError (str(e) + "- required module not found")
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if sys.version_info[0] < 3:
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import commands as cmd
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else:
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import subprocess as cmd
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smbus_present = 1
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try:
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@ -24,40 +31,45 @@ class SfpUtil(SfpUtilBase):
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_port_to_eeprom_mapping = {}
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port_to_i2c_mapping = {
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49 : 0,
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50 : 0,
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51 : 0,
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52 : 0
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49 : 2,
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50 : 3,
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51 : 4,
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52 : 5
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}
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_qsfp_ports = range(_port_start, ports_in_block + 1)
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_changed_ports = [0,0,0,0]
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def __init__(self):
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# Override port_to_eeprom_mapping for class initialization
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if not os.path.exists("/sys/class/gpio/gpio50/") :
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os.system("echo 50 > /sys/class/gpio/gpiochip32/subsystem/export")
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if not os.path.exists("/sys/class/gpio/gpio52/") :
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os.system("echo 52 > /sys/class/gpio/gpiochip32/subsystem/export")
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os.system("echo out > /sys/class/gpio/gpio50/direction")
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os.system("echo out > /sys/class/gpio/gpio52/direction ")
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if not os.path.exists("/sys/bus/i2c/devices/0-0050") :
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os.system("echo optoe2 0x50 > /sys/bus/i2c/devices/i2c-0/new_device")
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eeprom_path = '/sys/bus/i2c/devices/0-0050/eeprom'
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for x in range(self.port_start, self.port_end + 1):
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port_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[x])
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self.port_to_eeprom_mapping[x] = port_eeprom_path
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# Enable optical SFP Tx
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if smbus_present == 0 :
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os.system("i2cset -y -m 0x0f 0 0x41 0x5 0x00")
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else :
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bus = smbus.SMBus(0)
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DEVICE_ADDRESS = 0x41
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DEVICEREG = 0x5
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DEVICEREG = 0x5
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OPTIC_E = bus.read_byte_data(DEVICE_ADDRESS, DEVICEREG)
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OPTIC_E = OPTIC_E & 0xf0
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bus.write_byte_data(DEVICE_ADDRESS, DEVICEREG, OPTIC_E)
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bus.write_byte_data(DEVICE_ADDRESS, DEVICEREG, OPTIC_E)
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# Mux Ordering
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mux_dev = sorted(glob.glob("/sys/class/i2c-adapter/i2c-0/i2c-[0-9]"))
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# Enable optoe2 Driver
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eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom"
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bus_path = "/sys/class/i2c-adapter/i2c-{0}/"
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y = 0
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for x in range(self.port_start, self.port_end + 1):
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mux_dev_num = mux_dev[y]
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self.port_to_i2c_mapping[x] = mux_dev_num[-1]
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y = y + 1
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port_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[x])
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#print port_eeprom_path
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if not os.path.exists(port_eeprom_path):
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bus_dev_path = bus_path.format(self.port_to_i2c_mapping[x])
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os.system("echo optoe2 0x50 > " + bus_dev_path + "/new_device")
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self.port_to_eeprom_mapping[x] = port_eeprom_path
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self._port_to_eeprom_mapping[x] = port_eeprom_path
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SfpUtilBase.__init__(self)
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def reset(self, port_num):
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@ -65,9 +77,9 @@ class SfpUtil(SfpUtilBase):
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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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path = "/sys/bus/i2c/devices/{0}-0050/sfp_port_reset"
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port_ps = path.format(self.port_to_i2c_mapping[port_num+1])
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path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/sfp_port_reset"
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port_ps = path.format(self.port_to_i2c_mapping[port_num])
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try:
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reg_file = open(port_ps, 'w')
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except IOError as e:
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@ -88,53 +100,35 @@ class SfpUtil(SfpUtilBase):
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def get_low_power_mode(self, port_num):
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raise NotImplementedError
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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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prt = port_num % 49
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prt = "{0:02b}".format(prt)
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p = prt[0]
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q = prt[1]
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cmd1 = "echo " + q + " > /sys/class/gpio/gpio50/value"
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cmd2 = "echo " + p + " > /sys/class/gpio/gpio52/value"
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os.system(cmd1)
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os.system(cmd2)
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prt = port_num % 49
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sel = "{0:02b}".format(prt)
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p = sel[0]
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q = sel[1]
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'''if port_num == 49 :
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os.system("echo 0 > /sys/class/gpio/gpio50/value")
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os.system("echo 0 > /sys/class/gpio/gpio52/value")
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if port_num == 50 :
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os.system("echo 0 > /sys/class/gpio/gpio50/value")
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os.system("echo 0 > /sys/class/gpio/gpio52/value")
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if port_num == 51 :
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os.system("echo 0 > /sys/class/gpio/gpio50/value")
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os.system("echo 0 > /sys/class/gpio/gpio52/value")
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if port_num == 52:
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os.system("echo 0 > /sys/class/gpio/gpio50/value")
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os.system("echo 0 > /sys/class/gpio/gpio52/value")'''
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path = "/sys/bus/i2c/devices/0-0050/eeprom"
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#port_ps = path.format(self.port_to_i2c_mapping[port_num+1])
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try:
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reg_file = open(path)
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reg_file.seek(01)
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reg_file.read(02)
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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_file.readline().rstrip()
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#if reg_value == '1':
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# return True
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return True
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pos = [1,2,4,8]
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bit_pos = pos[prt]
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if smbus_present == 0:
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cmdstatus, sfpstatus = cmd.getstatusoutput('i2cget -y 0 0x41 0x3') #need to verify the cpld register logic
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sfpstatus = int(sfpstatus, 16)
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else :
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bus = smbus.SMBus(0)
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DEVICE_ADDRESS = 0x41
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DEVICE_REG = 0x3
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sfpstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
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sfpstatus = sfpstatus&(bit_pos)
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if sfpstatus == 0:
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#print("Port " + str(port_num) + "present")
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return True
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return False
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def read_porttab_mappings(self, porttabfile):
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logical = []
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logical_to_bcm = {}
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logical_to_physical = {}
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physical_to_logical = {}
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last_fp_port_index = 0
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@ -166,14 +160,8 @@ class SfpUtil(SfpUtilBase):
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# Parsing logic for 'port_config.ini' file
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if (parse_fmt_port_config_ini):
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# bcm_port is not explicitly listed in port_config.ini format
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# Currently we assume ports are listed in numerical order according to bcm_port
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# so we use the port's position in the file (zero-based) as bcm_port
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portname = line.split()[0]
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bcm_port = str(port_pos_in_file)
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#print("portname " + portname)
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if "index" in title:
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fp_port_index = int(line.split()[title.index("index")])
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# Leave the old code for backward compatibility
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@ -182,10 +170,8 @@ class SfpUtil(SfpUtilBase):
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else:
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fp_port_index = portname.split("Ethernet").pop()
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fp_port_index = int(fp_port_index.split("s").pop(0))+1
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#print(fp_port_index)
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#print(fp_port_index)
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else: # Parsing logic for older 'portmap.ini' file
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(portname, bcm_port) = line.split("=")[1].split(",")[:2]
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fp_port_index = portname.split("Ethernet").pop()
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fp_port_index = int(fp_port_index.split("s").pop(0))+1
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@ -201,7 +187,6 @@ class SfpUtil(SfpUtilBase):
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logical.append(portname)
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logical_to_bcm[portname] = "xe" + bcm_port
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logical_to_physical[portname] = [fp_port_index]
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if physical_to_logical.get(fp_port_index) is None:
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physical_to_logical[fp_port_index] = [portname]
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@ -224,17 +209,9 @@ class SfpUtil(SfpUtilBase):
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port_pos_in_file += 1
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self.logical = logical
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self.logical_to_bcm = logical_to_bcm
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self.logical_to_physical = logical_to_physical
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self.physical_to_logical = physical_to_logical
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#print(self.logical_to_physical)
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'''print("logical: " + self.logical)
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print("logical to bcm: " + self.logical_to_bcm)
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print("logical to physical: " + self.logical_to_physical)
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print("physical to logical: " + self.physical_to_logical)'''
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@property
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@ -244,15 +221,50 @@ class SfpUtil(SfpUtilBase):
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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 self._qsfp_ports
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@property
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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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@property
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def get_transceiver_change_event(self):
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raise NotImplementedError
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def get_transceiver_change_event(self, timeout):
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port_dict = {}
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port = 0
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if timeout == 0:
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cd_ms = sys.maxint
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else:
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cd_ms = timeout
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changed_port = 0
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#poll per second
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while cd_ms > 0:
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for port_num in range(49,53):
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prt = port_num % 49
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sfpstatus = self.get_presence(port_num)
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if sfpstatus :
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port_dict[str(port_num)]= '1'
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if self._changed_ports[prt] == 0:
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changed_port = 1
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self._changed_ports[prt] = 1
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else :
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port_dict[str(port_num)] = '0'
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if self._changed_ports[prt] == 1:
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changed_port = 1
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self._changed_ports[prt] = 0
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if changed_port != 0:
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break
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time.sleep(1)
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cd_ms = cd_ms - 1000
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if changed_port:
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return True, port_dict
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else:
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return True, {}
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return False, {}
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