Can the ixgbe driver be used without a CS4227 PHY between the NIC (X552 in this
case) and the SFP+? Do you have to configure anything (driver settings, EEPROM
firmware) to support that?
I do see a CS4227 error message from the driver, but it's not clear if that is
fatal:
Jun 17 21:36:26 localhost kernel: ixgbe 0000:04:00.0: eth10: CS4227 reset
failed: -18
Jun 17 21:36:26 localhost kernel: ixgbe 0000:04:00.0: registered PHC device on
eth10
Jun 17 21:36:26 localhost kernel: ADDRCONF(NETDEV_UP): eth10: link is not ready
Jun 17 21:36:26 localhost kernel: ixgbe 0000:04:00.0: eth10: detected SFP+: 5
However, I am not seeing link (NO-CARRIER).
Here is 'ethtool -m', so it's talking to the SFP+ okay.
$ sudo ethtool -m eth10
Identifier : 0x03 (SFP)
Extended identifier : 0x04 (GBIC/SFP defined by 2-wire interface ID)
Connector : 0x07 (LC)
Transceiver codes : 0x10 0x00 0x000x00 0x00 0x00 0x00 0x00
: => 10G Ethernet: 10G Base-SR
Encoding : 0x06 (64B/66B)
BR, Nominal : 10300MBd
Rate identifier : 0x00 (unspecified)
Length (SMF,km) : 0km
Length (SMF) : 0m
Length (50um) : 80m
Length (62.5um) : 20m
Length (Copper) : 0m
Length (OM3) : 300m
Laser wavelength : 850nm
Vendor name : CISCO-INTEGRA
Vendor OUI : c8:de:51
Vendor PN : SFP-10G-SR-S-IO
Vendor rev : 01
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