[Skiboot] [PATCH] PCI: Clear error bits after changing MPS

Stewart Smith stewart at linux.vnet.ibm.com
Tue Sep 15 17:23:15 AEST 2015

Gavin Shan <gwshan at linux.vnet.ibm.com> writes:
> Chaning MPS on PCI upstream bridge might cause error bits set on
> downstream endpoints when system boots into Linux as below case
> shows:
> host# lspci -vvs 0001:06:00.0
> 0001:06:00.0 Ethernet controller: Broadcom Corporation \
>              NetXtreme II BCM57810 10 Gigabit Ethernet (rev 10)
>     :
> DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
>     :
> CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
> This clears those error bits in AER and PCIe capability after MPS
> is changed. With the patch applied, no more error bits are seen.
> Reported-by: John Walthour <jwalthour at us.ibm.com>
> Signed-off-by: Gavin Shan <gwshan at linux.vnet.ibm.com>

Thanks, merged at c34905c

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