Turris Omnia (version RTROM01, running OpenWRT 19.07)
dmesg | grep -E "eth2|sfp"
[ 1.134317] mvneta f1034000.ethernet eth2: Using hardware mac address d8:58:d7:00:57:9a
[ 8.505524] sfp sfp: module UBNT UF-SM-1G-S rev sn FT18051615332 dc 16-05-18
[ 8.514863] sfp sfp: LC connector, encoding 8b10b, nominal bitrate 1.3Gbps +0% -0%
[ 8.522628] sfp sfp: 1000BaseSX- 1000BaseLX- 1000BaseCX- 1000BaseT- 100BaseTLX- 1000BaseFX- BaseBX10+ BasePX-
[ 8.532742] sfp sfp: 10GBaseSR- 10GBaseLR- 10GBaseLRM- 10GBaseER-
[ 8.539023] sfp sfp: Wavelength 1310nm, fiber lengths:
[ 8.544349] sfp sfp: 9µm SM : 3000m
[ 8.548539] sfp sfp: 62.5µm MM OM1: unsupported/unspecified
[ 8.554300] sfp sfp: 50µm MM OM2: unsupported/unspecified
[ 8.560058] sfp sfp: 50µm MM OM3: unsupported/unspecified
[ 8.565818] sfp sfp: 50µm MM OM4: unsupported/unspecified
[ 8.571578] sfp sfp: Options: hpl, txfault, los+
[ 8.576382] sfp sfp: Diagnostics: ddm, intcal, rxpwravg
[ 8.581799] mvneta f1034000.ethernet eth2: validation of 802.3z/1000base-x with support 00000,00002440 failed: -22
[ 11.117303] mvneta f1034000.ethernet eth2: configuring for SGMII/sgmii link mode
[ 11.125165] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
Another Turris Omnia (same version, running Turris OS 4.0.3)
dmesg | grep -E "eth2|sfp"
[ 4.404289] mvneta f1034000.ethernet eth2: Using hardware mac address d8:58:d7:00:5a:82
[ 5.252577] sfp sfp: module UBNT UF-SM-1G-S rev sn FT18051615350 dc 16-05-18
[ 5.261914] sfp sfp: LC connector, encoding 8b10b, nominal bitrate 1.3Gbps +0% -0%
[ 5.269676] sfp sfp: 1000BaseSX- 1000BaseLX- 1000BaseCX- 1000BaseT- 100BaseTLX- 1000BaseFX- BaseBX10+ BasePX-
[ 5.279790] sfp sfp: 10GBaseSR- 10GBaseLR- 10GBaseLRM- 10GBaseER-
[ 5.286073] sfp sfp: Wavelength 1310nm, fiber lengths:
[ 5.291398] sfp sfp: 9µm SM : 3000m
[ 5.295589] sfp sfp: 62.5µm MM OM1: unsupported/unspecified
[ 5.301349] sfp sfp: 50µm MM OM2: unsupported/unspecified
[ 5.307106] sfp sfp: 50µm MM OM3: unsupported/unspecified
[ 5.312866] sfp sfp: 50µm MM OM4: unsupported/unspecified
[ 5.318626] sfp sfp: Options: hpl, txfault, los+
[ 5.323429] sfp sfp: Diagnostics: ddm, intcal, rxpwravg
[ 5.328844] mvneta f1034000.ethernet eth2: switched to 802.3z/1000base-x link mode
[ 20.152651] mvneta f1034000.ethernet eth2: configuring for 802.3z/1000base-x link mode
[ 20.161971] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
[ 20.471348] mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off
[ 20.479214] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[ 24.595923] mvneta f1034000.ethernet eth2: Link is Down
[ 24.734067] mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off