Hi all,
during testing i encountered a problem with setting up a 5200B
controller with a MICREL phy at static 100MBit full duplex - without
autonegotiation.
I performed this as usual with ethtool and was succesful when i had my
link partner up, providing a link.
When kepping the link partner off, meaning no link at all, my machine
started to degrade its link capabilities ending 10MBit half duplex.
I tracked it down to drivers/net/phy/phy.c:
in the function phy_state_machine, the case block PHY_FORCING causes
this (at least for me) undesired behaviour. Calling the
phy_force_reduction function degrades actually an intentionally static
setup.
I deactivated those lines, and it works for me.
But anyhow i feel soe need to have a general solution that takes static
non autonagotiation setups into account.
What do you think?
Hope to hear from you
Michael
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