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Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time

From Andrew Lunn <andrew@lunn.ch>
Newsgroups linux.kernel
Subject Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time
Date 2017-03-14 13:10 +0100
Message-ID <tkTr3-8mX-9@gated-at.bofh.it> (permalink)
References <tkDPk-58M-15@gated-at.bofh.it> <tkGNc-7uk-17@gated-at.bofh.it> <tkGWR-7zv-3@gated-at.bofh.it> <tkH6y-7El-5@gated-at.bofh.it> <tkSEF-7LJ-11@gated-at.bofh.it>
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> Hi
> The never ever seeing R/W failure on MDIO bus is not exactly accurate.
> We had with art (atheros calibration tool) the problem that interrupts
> were being disabled which lead to MDIO operations running into
> timout/failing.

Yes, i've seen similar with power management bugs for the MDIO
driver. But you get a cascade of failures, lots of warnings and error
prints, it is clear something bad has happened, and the switch is in
an inconsistent state. So having one more debug print which is also
inconsistent does no really harm.

Anyway, this whole conversation has taken more effort than just making
this simple change to remove a few lines of code. So lets drop it and
move on.

    Andrew

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Thread

[PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Vivien Didelot <vivien.didelot@savoirfairelinux.com> - 2017-03-13 20:30 +0100
  Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Andrew Lunn <andrew@lunn.ch> - 2017-03-13 23:40 +0100
    Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Florian Fainelli <f.fainelli@gmail.com> - 2017-03-13 23:50 +0100
      Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Andrew Lunn <andrew@lunn.ch> - 2017-03-14 00:00 +0100
        Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Matthias May <matthias.may@neratec.com> - 2017-03-14 12:20 +0100
          Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Andrew Lunn <andrew@lunn.ch> - 2017-03-14 13:10 +0100
            Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Vivien Didelot <vivien.didelot@savoirfairelinux.com> - 2017-03-14 15:10 +0100
              Re: [PATCH net-next] net: dsa: mv88e6xxx: debug ATU Age Time Andrew Lunn <andrew@lunn.ch> - 2017-03-14 15:20 +0100

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