# Clearfog cn9130 pro and sfp ftth **URL:** \ **Category:** OCTEON CN9130\ **Created:** [January 11, 2023, 1:33pm UTC](https://community.solid-run.com/t/clearfog-cn9130-pro-and-sfp-ftth/560 "2023-01-11T13:33:11Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![doudootiana](https://avatars.discourse-cdn.com/v4/letter/d/5f8ce5/32.png) [@doudootiana](https://community.solid-run.com/u/doudootiana)\ **Post date:** [January 11, 2023, 1:33pm UTC](https://community.solid-run.com/t/clearfog-cn9130-pro-and-sfp-ftth/560/1 "2023-01-11T13:33:11Z")
Hy ๐Ÿ™‚ I tried to use sfp gpon onu with my clearfog pro. I have 3 models : -fs -sercomm fgs202 -huawei ma 5671a With th fs,itโ€™s ok. But i donโ€™t succeed to use the sercomm and the huawei. I tried to modify the quirks in the sfp.c : > SFP\_QUIRK\_M(FS, GSFP-ONU-SC, sfp\_quirk\_2500basex), > > SFP\_QUIRK\_M(SERCOMM, FGS202, sfp\_quirk\_2500basex), Here the output with huawei and sercomm sfp : ```auto [7.812392] sfp sfp-eth@0: please wait, module slow to respond bash-5.1# ethtool -m eth0 netlink error: No such device or address bash-5.1# ethtool eth0 Settings for eth0: Supported ports: [MII] Supported link modes: 10000baseT/Full 10000baseKX4/Full 10000baseKR/Full 10000baseCR/Full 10000baseSR/Full 10000baseLR/Full 10000baseLRM/Full 10000baseER/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 10000baseT/Full 10000baseKX4/Full 10000baseKR/Full 10000baseCR/Full 10000baseSR/Full 10000baseLR/Full 10000baseLRM/Full 10000baseER/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: Unknown! Duplex: Unknown! (255) Auto-negotiation: on Port: MII PHYAD: 0 Transceiver: internal Link detected: no ``` And here with the fs : > bash-5.1# 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 0x02 0x00 0x00 0x00 0x00 0x00 > Transceiver type : Ethernet: 1000BASE-LX > 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 : FS > Vendor OUI : 00:00:00 > Vendor PN : GSFP-ONU-SC > Vendor rev : 01 > Option values : 0x00 0x1a > Option : RX\_LOS implemented > Option : TX\_FAULT implemented > Option : TX\_DISABLE implemented > BR margin, max : 0% > BR margin, min : 0% > Vendor SN : SCOM210A1F5A > Date code : 211007 > bash-5.1# ethtool eth0 > Settings for eth0: > Supported ports: [FIBRE] > Supported link modes: 2500baseX/Full > 1000baseX/Full > Supported pause frame use: Symmetric Receive-only > Supports auto-negotiation: Yes > Supported FEC modes: Not reported > Advertised link modes: 2500baseX/Full > Advertised pause frame use: Symmetric Receive-only > Advertised auto-negotiation: Yes > Advertised FEC modes: Not reported > Speed: Unknown! > Duplex: Unknown! (255) > Auto-negotiation: on > Port: FIBRE > PHYAD: 0 > Transceiver: internal > Link detected: no > bash-5.1# Thank you by advance ๐Ÿ™‚ ---
**Author:** ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)\ **Post date:** [January 12, 2023, 2:02pm UTC](https://community.solid-run.com/t/clearfog-cn9130-pro-and-sfp-ftth/560/2 "2023-01-12T14:02:34Z")
Make sure you have this patch in your kernel sources. [[PATCH v2] net: sfp: Add tx-fault workaround for Huawei MA5671A SFP ONT โ€” Netdev](https://www.spinics.net/lists/netdev/msg817292.html) ---
**Author:** ![doudootiana](https://avatars.discourse-cdn.com/v4/letter/d/5f8ce5/32.png) [@doudootiana](https://community.solid-run.com/u/doudootiana)\ **Post date:** [January 12, 2023, 3:04pm UTC](https://community.solid-run.com/t/clearfog-cn9130-pro-and-sfp-ftth/560/3 "2023-01-12T15:04:12Z")
Hy, I applied this patch and here the part modified of my driver : ```auto /* Initialise state bits to use from hardware */ sfp->state_hw_mask = SFP_F_PRESENT; if (sfp->gpio[GPIO_TX_DISABLE]) sfp->state_hw_mask |= SFP_F_TX_DISABLE; if (sfp->gpio[GPIO_TX_FAULT]) sfp->state_hw_mask |= SFP_F_TX_FAULT; if (sfp->gpio[GPIO_LOS]) sfp->state_hw_mask |= SFP_F_LOS; sfp->module_t_start_up = T_START_UP; if (!memcmp(id.base.vendor_name, "HUAWEI ", 16) && !memcmp(id.base.vendor_pn, "MA5671A ", 16)) sfp->tx_fault_ignore = true; else sfp->tx_fault_ignore = false; return 0; if (!memcmp(id.base.vendor_name, "SERCOMM ", 16) && !memcmp(id.base.vendor_pn, "FGS202 ", 16)) sfp->tx_fault_ignore = true; else sfp->tx_fault_ignore = false; return 0; sfp->module_t_wait = T_WAIT; ``` and ```auto static void sfp_check_state(struct sfp *sfp) { unsigned int state, i, changed; mutex_lock(&sfp->st_mutex); state = sfp_get_state(sfp); changed = state ^ sfp->state; if (sfp->tx_fault_ignore) changed &= SFP_F_PRESENT | SFP_F_LOS; else changed &= SFP_F_PRESENT | SFP_F_LOS | SFP_F_TX_FAULT; for (i = 0; i < GPIO_MAX; i++) if (changed & BIT(i)) dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i], !!(sfp->state & BIT(i)), !!(state & BIT(i))); state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT); sfp->state = state; rtnl_lock(); if (changed & SFP_F_PRESENT) sfp_sm_event(sfp, state & SFP_F_PRESENT ? SFP_E_INSERT : SFP_E_REMOVE); if (changed & SFP_F_TX_FAULT) sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? SFP_E_TX_FAULT : SFP_E_TX_CLEAR); if (changed & SFP_F_LOS) sfp_sm_event(sfp, state & SFP_F_LOS ? SFP_E_LOS_HIGH : SFP_E_LOS_LOW); rtnl_unlock(); mutex_unlock(&sfp->st_mutex); } ``` I use kernel 6.1 and i have applied all patches ---
**Author:** ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)\ **Post date:** [January 12, 2023, 3:42pm UTC](https://community.solid-run.com/t/clearfog-cn9130-pro-and-sfp-ftth/560/4 "2023-01-12T15:42:10Z")
> [@doudootiana](#): > > ` ` I vaguely remember an issue with the SERDEV GPON units. They incorrectly require PIN 7 to be pulled high to not constantly reset. By default PIN 7 is grounded on the ClearFog carriers and requires changing a resistor location to pull it high. ![image](https://europe1.discourse-cdn.com/flex005/uploads/solid_run/original/1X/428f6455210e2fca845c33260068076be3745de0.png) ---
**Author:** ![doudootiana](https://avatars.discourse-cdn.com/v4/letter/d/5f8ce5/32.png) [@doudootiana](https://community.solid-run.com/u/doudootiana)\ **Post date:** [January 12, 2023, 3:48pm UTC](https://community.solid-run.com/t/clearfog-cn9130-pro-and-sfp-ftth/560/5 "2023-01-12T15:48:45Z")
I understand. That why, some people modify the pin 7 of the module sfp. Thank you