There was a previous effort to add support for the PAPR
architected ibm,drc-info property. This property provides a more
memory compact representation of a parition's Dynamic Reconfig
Connectors (DRC). These can otherwise be thought of as currently
partitioned, or available but yet to be partitioned system resources
such as cpus, memory, and physical/logical IOA devices.
The initial implementation proved buggy and was fully turned off by
disabling the bit in the appropriate CAS support vector. We now have
PowerVM firmware in the field that supports this new property, and
further to support partitions with 24TB+ of possible memory this
property is required to perform platform migration.
This series fixs the short comings of the previous submission
in the areas of general implementation, cpu hotplug, and IOA hotplug.
v2 changelog:
Cover Letter: fixed up spelling errors (mpe, tfalcon)
Patch 3: added comment regarding indexing of drc values (tfalcon)
split drc-index and drc-info logic into multiple
functions for collecting cpu drc's for dlpar (mpe)
Patch 7: fix up a couple more sparse warnings (mpe)
Tyrel Datwyler (9):
powerpc/pseries: Fix bad drc_index_start value parsing of drc-info
entry
powerpc/pseries: Fix drc-info mappings of logical cpus to drc-index
powerpc/pseries: Add cpu DLPAR support for drc-info property
PCI: rpaphp: Fix up pointer to first drc-info entry
PCI: rpaphp: Don't rely on firmware feature to imply drc-info support
PCI: rpaphp: Add drc-info support for hotplug slot registration
PCI: rpaphp: Annotate and correctly byte swap DRC properties
PCI: rpaphp: Correctly match ibm,my-drc-index to drc-name when using
drc-info
powerpc/pseries: Enable support for ibm,drc-info property
arch/powerpc/kernel/prom_init.c | 2 +-
arch/powerpc/platforms/pseries/hotplug-cpu.c | 127 +++++++++++++++++++++---
arch/powerpc/platforms/pseries/of_helpers.c | 8 +-
arch/powerpc/platforms/pseries/pseries_energy.c | 23 ++---
drivers/pci/hotplug/rpaphp_core.c | 127 +++++++++++++++++-------
5 files changed, 216 insertions(+), 71 deletions(-)
--
2.7.4
