[Bug 233771] Intel x553 100baseTX full-duplex mode not supported

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233771

--- Comment #7 from Jérôme-Charles LALLEMAND <jeromecharles.lallemand at gmail.com> ---
The X553 is 1G/100M/10M (not 10G). If I plug the interface on a Cisco interface
10/100 with speed auto duplex auto it works and negociate 100-Full.

But in my configuration the switch interface is forced in 100-Full and it does
not work.


On my server:
sysctl dev.ix.0.advertise_speed
dev.ix.0.advertise_speed: 11

sysctl -d dev.ix.0.advertise_speed
dev.ix.0.advertise_speed: 
Control advertised link speed using these flags:
        0x1 - advertise 100M
        0x2 - advertise 1G
        0x4 - advertise 10G
        0x8 - advertise 10M

        100M and 10M are only supported on certain adapters.

sysctl dev.ix.0.advertise_speed=0x1
dev.ix.0.advertise_speed: 11 -> 1

It does not work either. I'm guessing, the duplex is still auto-neg on the ix0.

Any idea to force the speed AND the duplex on this interface ?

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