From: Bjorn Helgaas <helgaas@kernel.org>
To: Tyrel Datwyler <tyreld@linux.ibm.com>
Cc: mpe@ellerman.id.au, benh@kernel.crashing.org,
linuxppc-dev@lists.ozlabs.org, tlfalcon@linux.ibm.com,
nathanl@linux.ibm.com, linux-pci@vger.kernel.org
Subject: Re: [PATCH v2 0/9] Fixes and Enablement of ibm,drc-info property
Date: Mon, 11 Nov 2019 13:49:28 -0600 [thread overview]
Message-ID: <20191111194928.GA38342@google.com> (raw)
In-Reply-To: <1573449697-5448-1-git-send-email-tyreld@linux.ibm.com>
On Sun, Nov 10, 2019 at 11:21:27PM -0600, Tyrel Datwyler wrote:
> 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 +++++++++++++++++-------
For the drivers/pci/* parts:
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
I assume they will be merged along with the rest of the series via
powerpc.
> 5 files changed, 216 insertions(+), 71 deletions(-)
>
> --
> 2.7.4
>
next prev parent reply other threads:[~2019-11-11 19:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-11 5:21 [PATCH v2 0/9] Fixes and Enablement of ibm,drc-info property Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 1/9] powerpc/pseries: Fix bad drc_index_start value parsing of drc-info entry Tyrel Datwyler
2019-11-14 9:08 ` Michael Ellerman
2019-11-11 5:21 ` [PATCH v2 2/9] powerpc/pseries: Fix drc-info mappings of logical cpus to drc-index Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 3/9] powerpc/pseries: Add cpu DLPAR support for drc-info property Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 4/9] PCI: rpaphp: Fix up pointer to first drc-info entry Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 5/9] PCI: rpaphp: Don't rely on firmware feature to imply drc-info support Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 6/9] PCI: rpaphp: Add drc-info support for hotplug slot registration Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 7/9] PCI: rpaphp: annotate and correctly byte swap DRC properties Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 7/9] PCI: rpaphp: Annotate " Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 8/9] PCI: rpaphp: Correctly match ibm,my-drc-index to drc-name when using drc-info Tyrel Datwyler
2019-11-11 5:21 ` [PATCH v2 9/9] powerpc/pseries: Enable support for ibm,drc-info property Tyrel Datwyler
2019-11-11 19:49 ` Bjorn Helgaas [this message]
2019-11-12 10:50 ` [PATCH v2 0/9] Fixes and Enablement of " Michael Ellerman
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