[Skiboot] [PATCH] phb4: Use link if degraded
Russell Currey
ruscur at russell.cc
Fri Sep 15 12:22:58 AEST 2017
On Fri, 2017-09-15 at 10:27 +1000, Michael Neuling wrote:
> In the recent change:
> 3f936bae97 phb4: Retrain link if degraded
> We retrain if the link is degraded. We do 3 retries to get an optimal
> link.
>
> Unfortunately if the last retry fails, we mark the PHB as bad and
> don't use it. Hence that PHB is lost even though it actually trained
> (just degraded).
>
> This fixes the problem by printing an error message (as below) but
> still marking the PHB as good.
>
> [ 7.179320404,3] PHB#0005[0:5]: LINK: Link degraded
> [ 8.387346665,3] PHB#0005[0:5]: LINK: Link degraded
> [ 10.078409137,3] PHB#0005[0:5]: LINK: Link degraded
> [ 11.281477269,3] PHB#0005[0:5]: LINK: Link degraded
> [ 11.283123885,3] PHB#0005[0:5]: LINK: Degraded but no more retries
>
> Signed-off-by: Michael Neuling <mikey at neuling.org>
Acked-by: Russell Currey <ruscur at russell.cc>
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