Hi Pali, I have a CarlitoxxPro module and I reported an issue about RX_LOS pin to the manufacturer. It looks to me that the module asserts "inverted LOS" through EEPROM but does not implement it. Consequently, the SFP state machine of my host router stays in check los state and link is not set up for the host interface.
Below is a dump of the module's EEPROM: [root@clearfog-gt-8k ~]# ethtool -m eth0 Identifier : 0x03 (SFP) Extended identifier : 0x04 (GBIC/SFP defined by 2-wire interface ID) Connector : 0x01 (SC) Transceiver codes : 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Encoding : 0x03 (NRZ) BR, Nominal : 1200MBd Rate identifier : 0x00 (unspecified) Length (SMF,km) : 20km Length (SMF) : 20000m Length (50um) : 0m Length (62.5um) : 0m Length (Copper) : 0m Length (OM3) : 0m Laser wavelength : 1310nm Vendor name : VSOL Vendor OUI : 00:00:00 Vendor PN : V2801F Vendor rev : 1.0 Option values : 0x00 0x1c Option : RX_LOS implemented, inverted Option : TX_FAULT implemented Option : TX_DISABLE implemented BR margin, max : 0% BR margin, min : 0% Vendor SN : CP202003180377 Date code : 200408 Optical diagnostics support : Yes Laser bias current : 0.000 mA Laser output power : 0.0000 mW / -inf dBm Receiver signal average optical power : 0.0000 mW / -inf dBm Module temperature : 31.00 degrees C / 87.80 degrees F Module voltage : 0.0000 V Alarm/warning flags implemented : Yes Laser bias current high alarm : Off Laser bias current low alarm : On Laser bias current high warning : Off Laser bias current low warning : Off Laser output power high alarm : Off Laser output power low alarm : On Laser output power high warning : Off Laser output power low warning : Off Module temperature high alarm : Off Module temperature low alarm : Off Module temperature high warning : Off Module temperature low warning : Off Module voltage high alarm : Off Module voltage low alarm : Off Module voltage high warning : Off Module voltage low warning : Off Laser rx power high alarm : Off Laser rx power low alarm : Off Laser rx power high warning : Off Laser rx power low warning : Off Laser bias current high alarm threshold : 74.752 mA Laser bias current low alarm threshold : 0.000 mA Laser bias current high warning threshold : 0.000 mA Laser bias current low warning threshold : 0.000 mA Laser output power high alarm threshold : 0.0000 mW / -inf dBm Laser output power low alarm threshold : 0.0000 mW / -inf dBm Laser output power high warning threshold : 0.0000 mW / -inf dBm Laser output power low warning threshold : 0.0000 mW / -inf dBm Module temperature high alarm threshold : 90.00 degrees C / 194.00 degrees F Module temperature low alarm threshold : 0.00 degrees C / 32.00 degrees F Module temperature high warning threshold : 0.00 degrees C / 32.00 degrees F Module temperature low warning threshold : 0.00 degrees C / 32.00 degrees F Module voltage high alarm threshold : 0.0000 V Module voltage low alarm threshold : 0.0000 V Module voltage high warning threshold : 0.0000 V Module voltage low warning threshold : 0.0000 V Laser rx power high alarm threshold : 0.1536 mW / -8.14 dBm Laser rx power low alarm threshold : 0.0000 mW / -inf dBm Laser rx power high warning threshold : 0.0000 mW / -inf dBm Laser rx power low warning threshold : 0.0000 mW / -inf dBm Le sam. 2 janv. 2021 à 02:49, Pali Rohár <p...@kernel.org> a écrit : > > On Thursday 31 December 2020 18:13:38 Andrew Lunn wrote: > > > > Looking at sfp_module_info(), adding a check for i2c_block_size < 2 > > > > when determining what length to return. ethtool should do the right > > > > thing, know that the second page has not been returned to user space. > > > > > > But if we limit length of eeprom then userspace would not be able to > > > access those TX_DISABLE, LOS and other bits from byte 110 at address A2. > > > > Have you tested these bits to see if they actually work? If they don't > > work... > > On Ubiquiti module that LOS bit does not work. > > I think that on CarlitoxxPro module LOS bit worked. But I cannot test it > right now as I do not have access to testing OLT unit. > > Adding Thomas to loop. Can you check if CarlitoxxPro GPON ONT module > supports LOS or other bits at byte offset 110 at address A2?
