Forward error correction (FEC) and qlnxe driver
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Date: Mon, 25 Jul 2022 14:11:22 UTC
Is this possible to set the FEC mode on a qlnxe interface? I have plugged a non officiall CISCO 100G DAC on the HPE Eth 4x25Gb 1p 620QSFP28 Adptr" card (817762-B21) but I get the following on freebsd side:
```
ifconfig -v ql0
ql0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO>
ether 14:02:ec:c9:78:54
media: Ethernet Other (autoselect)
status: no carrier
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
plugged: QSFP28 Unknown (No separable connector)
vendor: CISCO-PUREOPTICS PN: QSFP-100G-CU3M SN: KAFFF048 DATE: 2020-12-11
module temperature: 42.10 C voltage: 3.29 Volts
lane 1: RX power: 0.00 mW (-inf dBm) TX bias: 0.00 mA
lane 2: RX power: 0.00 mW (-inf dBm) TX bias: 0.00 mA
lane 3: RX power: 0.00 mW (-inf dBm) TX bias: 0.00 mA
lane 4: RX power: 0.00 mW (-inf dBm) TX bias: 0.00 mA
```
aand on the mikrotik switch:
```
qsfp28-3-1
status: no-link
name: qsfp28-3-1
status: no-link
auto-negotiation: disabled
sfp-module-present: yes
sfp-type: QSFP28
sfp-connector-type: no-separable-connector
sfp-link-length-copper-active-om4: 3m
sfp-vendor-name: CISCO-PUREOPTICS
sfp-vendor-part-number: QSFP-100G-CU3M
sfp-vendor-revision: 6
sfp-vendor-serial: KAFFF049
sfp-manufacturing-date: 20-12-11
eeprom-checksum: good
eeprom: 0000: 11 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >
0010: 00 00 00 00 00 00 26 18 00 00 80 bb 00 00 00 00 >
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >
*
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 00 >
0070: 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >
0080: 11 10 23 80 00 00 00 00 00 00 00 05 ff 00 00 00 >
0090: 00 00 03 a0 43 49 53 43 4f 2d 50 55 52 45 4f 50 >
00a0: 54 49 43 53 00 00 00 00 51 53 46 50 2d 31 30 30 >
00b0: 47 2d 43 55 33 4d 20 20 36 20 07 0a 0d 12 46 a7 >
00c0: 0b 00 00 00 4b 41 46 46 46 30 34 39 20 20 20 20 >
00d0: 20 20 20 20 32 30 31 32 31 31 20 20 00 00 68 d5 >
00e0: 00 00 09 45 68 f8 f0 34 95 7d 4b 6a f0 6e b6 d9 >
00f0: 5a bb ac 00 00 00 00 00 00 00 00 00 be 35 bb 98 >
```
Any hint is welcome [:)] It seems It should work if I can the same mod eon both side. Just changing the FEC on the mikrotik side didn't work. Is this normal to not have an option like on others drivers that allow me to set the FEC mode during booting?
Let me know,
Benoît