SFP+ module of X520 cannot be identified

[JTsai45]

Hi,

We have several HP DL380Gen9 with x520 10Gb NIC, and use CentOS. After Update CentOS 7.2 to 7.4, we found same SFP+ module (HP 10Gb SR SFP+) behave differently:

1, Centos 7.2+ixgbe 5.3.7: SFP+ Module works fine.

2, CentOS 7.4+ixgbe 5.3.7: SFP+ Module doesnot work. The value of comp_codes_10g/comp_codes_1g in ixgbe_identify_sfp_module_generic of ixgbe driver is zero, and cause the SFP+ modules cannot be identified.

By comparison test, we also found:

1, Using allow_unsupported_sfp param cannot fix this problem.

2, Using CentOS 7.4+x520+other SFP+ module(from HPE or other vendor), SFP+ Module can work fine.

These make us very confused and wanna to know:

1, the reason of comp_codes_10g/comp_codes_1g becomes zero.

2, how fix this problem.

3, is it related to kernel or driver.

Any ideas and suggestions will be appreciated, Tks a lot!

[idata]

Hello JoeyTsai,

Thank you for posting in Intel Wired Ethernet Communities. Please let us know if the X520 is integrated into the board or a PCIe adapter, and specify the vendor of the adapter. Please provide the output of uname, so we can see the kernel version. Please provide lshw -class network and ethtool -i outputs if the NIC is detected.Best regards,Daniel DIntel Customer Support

[idata]

Hello JoeyTsai,

Please let us know if you are still having issues with the SFP+ module in the X520. Provide the information requested above if possible. If you have any questions please do not hesitate to ask.Best regards,Daniel DIntel Customer Support

[idata]

Hello JoeyTsai,

Please let us know if you still have questions regarding the SFP+ modules on the X520.Best regards,Daniel DIntel Customer Support

[JTsai45]

Hello Daniel,

Sorry to reply late.

We contacted the hardware supplier,and they told us these SFP+ module were too old to use. We had to replace this type SFP+, and we are dealing with it.

Therefore, this issue could be closed as hardware problem.

However, I still confused about the reason. We modified the ixgbe drivers, by setting value of comp_codes_10g to 10g, the SFP+ module seem to works fine.

Thx a lot!

Best regards,

JoeyTsai

[idata]

Hello JoeyTsai,

Thank you for the reply. Glad to see the new module is working. We will check on the comp_codes_10g value. If you have any other questions please let us know.

Best regards,

Daniel DIntel Customer Support

[idata]

Hello JoeyTsai,

Please let us know if the X520 is integrated to the HP system or a PCIe adapter. If it is an external PCIe adapter, kindly share the markings on the physical adapter. Thanks.Regards,Vince T.Intel Customer Support

[idata]

Hi JoeyTsai,

We'd like to follow-up the requested information. Thanks.Best Regards,Vince T.Intel Customer Support

[idata]

Hello JoeyTsai,

Following up on the request if this is an onboard or PCIe adapter. Please let us know. If you have any questions please do not hesitate to ask.Best regards,Daniel DIntel Customer Support

[idata]

Hello JoeyTsai,

If you still require assistance please let us know.Best regards,Daniel DIntel Customer Support