Não é possível carregar o SFP +

Question

Estou usando o CentOS7 7.5.1804. Eu tenho uma placa SFP + de 10gig Intel 82599. Quando eu tento meu SFP eu recebo:

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

Eu tentei tudo o que encontrei on-line [1], inclusive adicionando as opções do kernel:

ixgbe.allow_unsupported_sfp=1

Eu também tentei

modprobe ixgbe allow_unsupported_sfp=1

Na verdade, quando depois, se eu fiz modinfo -p ixgbe eu voltei:

[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 ~]#

Abaixo, você pode ver todas as etapas, incluindo mostrar que o Linux não permitirá o SFP DEPOIS de descarregar e recarregar o módulo.

[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 ~]#

O melhor que encontrei foi [2], mas não tenho uma assinatura RHEL.

[1] Por exemplo link

[2] link

    

Answer 1

Acontece que houve algum problema estranho com o firmware em um dos lados do cabo óptico (eu estava usando um DAC). Se fosse mudado, funcionaria.