On Tue, Feb 25, 2014 at 01:37:41PM +0800, Gavin Shan wrote: >The series of patches intends to improve reliability of EEH on PowerNV >platform. First all, we have had multiple duplicate states (flags) for >PHB and PE, so we remove those duplicate states to simplify the code. >Besides, we had corrupted PHB diag-data for case of frozen PE. In order >to solve the problem, we introduce eeh_ops->event() and notifications >are sent from EEH core to (PowerNV) platform on creating or destroying >PE instance so that we can allocate or free PHB diag-data backend. Then >we cache the PHB diag-data on the first call to eeh_ops->get_state() >and dump it afterwards, which helps to get correct PHB diag-data. > >With the patchset applied, we never dump PHB diag-data for INF errors. >Instead, we just maintain statistics in /proc/powerpc/eeh_inf_err. Also, >we changed the PHB diag-data dump format for a bit to have multiple >fields per line and omits the line with all zero'd fields as Ben suggested. > > >v1 -> v2: > * Amending commit logs > * Support eeh_ops->event() and maintain PHB diag-data on basis > of PE instance > * When dumping PHB diag-data, to replace "-" with "00000000" and > omit the line if the fields of it are all zeros. >
Please ignore this and I'm going to send out v3 where we just grab and dump the PHB diag-data (without cache any more) as Ben suggested :-) Thanks, Gavin >--- > >arch/powerpc/include/asm/eeh.h | 7 ++- >arch/powerpc/kernel/eeh.c | 10 +--- >arch/powerpc/kernel/eeh_driver.c | 10 ++-- >arch/powerpc/kernel/eeh_pe.c | 39 ++++++++++++- >arch/powerpc/platforms/powernv/eeh-ioda.c | 193 >++++++++++++++++++++++++++++++++++++------------------------- >arch/powerpc/platforms/powernv/eeh-powernv.c | 74 +++++++++++++++++++----- >arch/powerpc/platforms/powernv/pci.c | 228 >+++++++++++++++++++++++++++++++++++++++++------------------------- >arch/powerpc/platforms/powernv/pci.h | 11 ++-- >arch/powerpc/platforms/pseries/eeh_pseries.c | 3 +- >9 files changed, 358 insertions(+), 217 deletions(-) > >Thanks, >Gavin > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
