[Intel-wired-lan] 5.10.0 kernel regression for 2.5Gbps link negotiation?

Paul Menzel pmenzel at molgen.mpg.de
Fri Dec 18 19:43:25 UTC 2020


Dear Todd,


Am 18.12.20 um 20:27 schrieb Fujinaka, Todd:
> Yes, and I'm plugging the hole in the README right now. Here's the proposed text:
> 
> Advertisements for 2.5G and 5G on the x550 were turned off by default due to
> interoperability issues with certain switches. To turn them back on, use
> 
> ethtool -s <ethX> advertise N
> 
> where N is a combination of the following.
> 
> 100baseTFull    0x008
> 1000baseTFull   0x020
> 2500baseTFull   0x800000000000
> 5000baseTFull   0x1000000000000
> 10000baseTFull  0x1000
> 
> For example, to turn on all modes:
> ethtool -s <ethX> advertise 0x1800000001028
> 
> For more details please see the ethtool man page.

What commit introduced this regression. Please bear in mind, that this 
contradicts Linux’ no-regression policy, and the commit should therefore 
be reverted as soon as possible.


Kind regards,

Paul


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