Control: retitle -1 A20-OLinuXino-Lime2-eMMC Rev. K: very poor ethernet 
performance

Quoting Jonas Smedegaard (2020-08-08 15:46:15)
> Quoting Jonas Smedegaard (2020-08-08 14:48:45)
> > Quoting Dieter (2020-08-08 11:37:39)
> > > However: I was not able to force the other partner (my old lenovo 
> > > T500) of the connection to a certain mode. I thought ethtool would 
> > > allow me to force the T500s, but i could not find the option.
> > 
> > Whoa, setting master/slave mode was implemented only since Linux 
> > v5.7: 
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bdbdac7649
> > 
> > Corresponding userspace support was introduced in ethtool v5.8: 
> > https://git.kernel.org/pub/scm/network/ethtool/ethtool.git/commit/?id=558f7cc33d
> > 
> > Ethtool v5.8 is not yet in Debian - was released upstream only 4 
> > days ago.
> 
> Request to upgrade of ethtool in debian: 
> https://bugs.debian.org/968099

ethtool 5.8 is in Debian testing since late August.

With that version, simply running "ethtool eth0" shows if the card is 
currently running in master or slave mode - which is helpful to mention 
when doing calibration tests, as that possibly matters and it can change 
each time connection is negotiated.


Changing title of this bugreport to disambiguate from bug#916822.

 - Jonas

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 * Jonas Smedegaard - idealist & Internet-arkitekt
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