[Skiboot] [PATCH] phb4: Be more conservative on link presence timeout
stewart at linux.vnet.ibm.com
Fri Jul 28 16:44:11 AEST 2017
Michael Neuling <mikey at neuling.org> writes:
> In this patch we tuned our link timing to be more agressive:
> cf960e2884 phb4: Improve reset and link training timing
> Cards should take only 32ms but unfortunately we've seen some take
> up to 440ms. Hence bump our timer up to 1000ms.
> This can hurt boot times on systems where slots indicate a hotplug
> status but no electrical link is present (which we've seen). Since we
> have to wait 1 second between PERST and touching config space anyway,
> it shouldn't hurt too much.
> Signed-off-by: Michael Neuling <mikey at neuling.org>
Merged to master as of a3abac2f66e1dd9f50b6a0c034abce3be5e1a104
OPAL Architect, IBM.
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