无法加载SFP+

Question

我使用的是CentOS7 7.5.1804。我有一张基于英特尔82599的10G SFP+卡。当我尝试我的SFP时，我得到：

failed to load because an unsupported SFP+ or QSFP module type was detected.

我尝试了所有我在网上找到的1，包括添加到内核选项：

ixgbe.allow_unsupported_sfp=1

我也试过

modprobe ixgbe allow_unsupported_sfp=1

事实上，后来如果我做了modinfo -p ixgbe，我就会返回：

[root@codd-b01 ~]# modprobe ixgbe 
[root@codd-b01 ~]# modinfo -p ixgbe
max_vfs:Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63 (uint)
allow_unsupported_sfp:Allow unsupported and untested SFP+ modules on 82599-based adapters (uint)
debug:Debug level (0=none,...,16=all) (int)
[root@codd-b01 ~]#

下面您可以看到所有的步骤，包括在我卸载和重新加载模块之后，Linux将不允许SFP。

[root@codd-b01 ~]# dmesg | grep SFP
[    8.981009] ixgbe 0000:5f:00.0: failed to load because an unsupported SFP+ or QSFP module type was detected.
[    8.994928] ixgbe 0000:5f:00.1: failed to load because an unsupported SFP+ or QSFP module type was detected.
[root@codd-b01 ~]# modprobe -r ixgbe 
[root@codd-b01 ~]# modprobe ixgbe 
[root@codd-b01 ~]# modinfo -p ixgbe
max_vfs:Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63 (uint)
allow_unsupported_sfp:Allow unsupported and untested SFP+ modules on 82599-based adapters (uint)
debug:Debug level (0=none,...,16=all) (int)

[root@codd-b01 ~]# dmesg | grep SFP
[    8.981009] ixgbe 0000:5f:00.0: failed to load because an unsupported SFP+ or QSFP module type was detected.
[    8.994928] ixgbe 0000:5f:00.1: failed to load because an unsupported SFP+ or QSFP module type was detected.
[ 6324.524966] ixgbe 0000:5f:00.0: failed to load because an unsupported SFP+ or QSFP module type was detected.
[ 6324.538955] ixgbe 0000:5f:00.1: failed to load because an unsupported SFP+ or QSFP module type was detected.
[root@codd-b01 ~]#

我发现最好的是2，但我没有RHEL的订阅。

例如1，https://ahelpme.com/linux/kernel/missing-network-interface-10g-intel-x520-with-error-failed-to-load-because-of-unsupported-sfp/

2

Answer 1

结果发现，在光学的一边(我正在使用DAC)电缆的固件有一些奇怪的问题。如果它被改变了，它就能工作了。

Answer 2

你的SFP+模块是什么牌子的？英特尔NIC应该能识别英特尔的收发器。如果你使用第三方的模块在EEPROM中编程英特尔的代码，那应该是好的。

你有没有想过DAC电缆？它是一个直接武官电缆与SFP+连接器两端。如果在Intel‘NIC中使用DAC电缆，它将不会读取EEPROM，而不像收发器。