The series of patches are follow-up in order to make EEH workable for PowerNV
platform on Juno-IOC-L machine. Couple of issues have been fixed with help of
Ben:
- Check PCIe link after PHB complete reset
- Restore config space for bridges
- The EEH address cache wasn't
We have 2 fields in struct pnv_phb to trace the states. The patch
replace the fields with one and introduces flags for that. The patch
doesn't impact the logic.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/eeh-ioda.c |8
arch/powerpc
When the PHB is fenced or dead, it's pointless to collect the data
from PCI config space of subordinate PCI devices since it should
return 0xFF's. The patch also fixes overwritten buffer while getting
PCI config data.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel
as above.
The idea was proposed by Ben.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |4 +-
arch/powerpc/include/asm/pci.h |1 +
arch/powerpc/kernel/eeh_driver.c | 134 +-
3 files changed, 137 insertions(+), 2
On the PowerNV platform, the EEH address cache isn't built correctly
because we skipped the EEH devices without binding PE. The patch
fixes that.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh_cache.c |2 +-
arch/powerpc/platforms/powernv/pci-ioda.c
backends just reuse them.
The patch also fix one potential risk: We possiblly have frozen
PE during the early PCI probe time, but we haven't setup the PE
mapping yet. So the errors should be counted to PE#0.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/eeh
. Besides, some printk() are
replaced with pr_warning().
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh.c |9 +++--
arch/powerpc/kernel/eeh_driver.c | 23 ++-
arch/powerpc/platforms/powernv/eeh-ioda.c | 25
().
This is often because .pnv_pci_ioda_fixup lacks a __init
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |4 ++--
arch/powerpc/kernel/eeh.c |2 +-
arch/powerpc/kernel/eeh_cache.c |2 +-
3 files changed, 4 insertions(+), 4 deletions
.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh_pe.c | 157 ++
1 files changed, 144 insertions(+), 13 deletions(-)
diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c
index 55943fc..016588a 100644
On Thu, Jun 27, 2013 at 01:46:41PM +0800, Gavin Shan wrote:
The subject went wrong. I didn't make the format correct and here's
the makeup:
[PATCH v4 00/8] Follow-up fixes for EEH on PowerNV
The series of patches are follow-up in order to make EEH workable for PowerNV
platform on Juno-IOC-L
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 5be702c..b447392 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6146,10
On Fri, Jun 28, 2013 at 12:11:29PM +1000, Benjamin Herrenschmidt wrote:
On Fri, 2013-06-28 at 09:59 +0800, Gavin Shan wrote:
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |4
1 files changed, 4 insertions(+), 0
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |7 +++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 5be702c..c724a3a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6149,7
On Fri, Jun 28, 2013 at 02:56:53PM +1000, Benjamin Herrenschmidt wrote:
On Fri, 2013-06-28 at 10:25 +0800, Gavin Shan wrote:
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |7 +++
1 files changed, 7 insertions(+), 0
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 5be702c..78e64c9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6149,7
On Fri, Jun 28, 2013 at 05:46:34PM +1000, Stephen Rothwell wrote:
Hi Gavin,
On Fri, 28 Jun 2013 13:42:23 +0800 Gavin Shan sha...@linux.vnet.ibm.com
wrote:
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |6 ++
1
] c00ad6f8 .kthread+0xe8/0xf0
[c00fa24b7e30] c000a05c .ret_from_kernel_thread+0x5c/0x80
Reported-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-common.c | 16
1 files changed
Update MAINTAINERS to reflect recent changes.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
MAINTAINERS |8 +++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 5be702c..ebeceeb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3103,6
On Sun, Jun 30, 2013 at 09:09:20AM +1000, Benjamin Herrenschmidt wrote:
On Fri, 2013-06-28 at 21:10 +0800, Gavin Shan wrote:
.../...
I'm running some tests, so far it looks good. However, Gavin, when you
have a chance on vpl3, try injecting errors to other adapters, for
example the VGA adapter
The series of patches bases on linux-poerpc-next and intends to resolve
the following problems:
- On pSeries platform, the EEH doesn't work after PHB hotplug
with drmgr. The root cause is that the EEH resources (
EEH devices, EEH caches) aren't released correctly. For
The patch overrides the weak function pcibios_stop_dev() to destroy
the EEH device and cache while stopping and removing the corresponding
PCI device.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-hotplug.c | 13 -
1 files changed, 12 insertions
Make some functions public in order to support hotplug on either specific
PCI bus or PCI device in future.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |9 +
arch/powerpc/kernel/eeh.c |6 +++---
2 files changed, 12 insertions(+), 3
Currently, we're transversing EEH devices by list_for_each_entry().
That's not safe enough because the EEH devices might be removed from
its parent PE while doing iteration. The patch replaces that with
list_for_each_entry_safe().
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch
and the newly added devices in complete hotplug
can't be enabled.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/pci-bridge.h |2 +-
arch/powerpc/include/asm/pci.h|2 +
arch/powerpc/kernel/pci-common.c |8 ++-
arch/powerpc/kernel/pci-hotplug.c
from its PE, but with special flag. After the reset is done, those
EEH devices with the special flag will be scanned one by one.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |6 ++-
arch/powerpc/kernel/eeh.c| 22 ++--
arch/powerpc
and introduce new flag EEH_PE_KEEP
to save the PE while doing hotplug during EEH error recovery.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h| 11 +--
arch/powerpc/include/asm/pci-bridge.h |1 -
arch/powerpc/kernel/eeh.c | 28
() for the purpose.
Cc: Bjorn Helgaas bhelg...@google.com
Cc: linux-...@vger.kernel.org
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
drivers/pci/probe.c |4
drivers/pci/remove.c |2 ++
include/linux/pci.h |1 +
3 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers
Since pci_stop_and_remove_bus_device() has removed the EEH cache,
we needn't do that again.
Cc: Bjorn Helgaas bhelg...@google.com
Cc: linux-...@vger.kernel.org
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
drivers/pci/hotplug/rpadlpar_core.c |1 -
1 files changed, 0 insertions
the reference to the PCI device in EEH core.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh.c |4
arch/powerpc/kernel/eeh_cache.c | 18 +-
2 files changed, 5 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc
The series of patches bases on linux-poerpc-next initially and intends to
resolve
the following problems:
- On pSeries platform, the EEH doesn't work after PHB hotplug
with drmgr. The root cause is that the EEH resources (
EEH devices, EEH caches) aren't released
Make some functions public in order to support hotplug on either specific
PCI bus or PCI device in future.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |9 +
arch/powerpc/kernel/eeh.c |6 +++---
2 files changed, 12 insertions(+), 3
Since pcibios_release_device() called by pci_stop_and_remove_bus_device()
has removed the EEH cache, we needn't do that again.
Acked-by: Bjorn Helgaas bhelg...@google.com
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
drivers/pci/hotplug/rpadlpar_core.c |1 -
1 files changed, 0
and the newly added devices in complete hotplug
can't be enabled.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/pci-bridge.h |2 +-
arch/powerpc/include/asm/pci.h|2 +
arch/powerpc/kernel/pci-common.c |8 ++-
arch/powerpc/kernel/pci-hotplug.c
The patch overrides pcibios_release_device() to release EEH
resources (EEH cache, unbinding EEH device) for the indicated PCI
device.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-hotplug.c | 11 +++
1 files changed, 11 insertions(+), 0 deletions
Currently, we're transversing EEH devices by list_for_each_entry().
That's not safe enough because the EEH devices might be removed from
its parent PE while doing iteration. The patch replaces that with
list_for_each_entry_safe().
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch
and introduce new flag EEH_PE_KEEP
to save the PE while doing hotplug during EEH error recovery.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h| 11 +--
arch/powerpc/include/asm/pci-bridge.h |1 -
arch/powerpc/kernel/eeh.c | 28
from its PE, but with special flag. After the reset is done, those
EEH devices with the special flag will be scanned one by one.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |6 ++-
arch/powerpc/kernel/eeh.c| 30 ++-
arch/powerpc
those information to
EEH device in advance.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |8 +++-
arch/powerpc/kernel/eeh_pe.c | 25 +-
arch/powerpc/platforms/powernv/eeh-powernv.c | 11 +
arch/powerpc
] .ret_from_kernel_thread+0x5c/0x80
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh_driver.c |6 +-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 3fee021..72c4a17 100644
Make some functions public in order to support hotplug on either specific
PCI bus or PCI device in future.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |9 +
arch/powerpc/kernel/eeh.c |6 +++---
2 files changed, 12 insertions(+), 3
The patch overrides pcibios_release_device() to release EEH
resources (EEH cache, unbinding EEH device) for the indicated PCI
device.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-hotplug.c | 11 +++
1 files changed, 11 insertions(+), 0 deletions
and introduce new flag EEH_PE_KEEP
to save the PE while doing hotplug during EEH error recovery.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h| 11 +--
arch/powerpc/include/asm/pci-bridge.h |1 -
arch/powerpc/kernel/eeh.c | 28
the reference to the PCI device in EEH core.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh.c |4
arch/powerpc/kernel/eeh_cache.c | 18 +-
2 files changed, 5 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc
Since pcibios_release_device() called by pci_stop_and_remove_bus_device()
has removed the EEH cache, we needn't do that again.
Cc: Bjorn Helgaas bhelg...@google.com
Acked-by: Bjorn Helgaas bhelg...@google.com
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
drivers/pci/hotplug
those information to
EEH device in advance.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |8 +++-
arch/powerpc/kernel/eeh_pe.c | 25 +-
arch/powerpc/platforms/powernv/eeh-powernv.c | 11 +
arch/powerpc
based on device-tree
or real hardware. It's notable that pci_of_scan.c has been changed
for a bit in order to support the partial hotplug based on dev-tree.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-common.c |1 +
arch/powerpc/kernel/pci-hotplug.c |6
from its PE, but with special flag. After the reset is done, those
EEH devices with the special flag will be scanned one by one.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |6 ++-
arch/powerpc/kernel/eeh.c| 30
The patch introduces flag EEH_DEV_SYSFS to trace that the sysfs for
the corresponding EEH device (then PCI device) has been added or
removed, in order to avoid race condition.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |2 ++
arch
The series of patches bases on linux-poerpc-next initially and intends to
resolve
the following problems:
- On pSeries platform, the EEH doesn't work after PHB hotplug
with drmgr. The root cause is that the EEH resources (
EEH devices, EEH caches) aren't released
] .ret_from_kernel_thread+0x5c/0x80
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh_driver.c |6 +-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 9fda75d..36bed5a 100644
The series of patches bases on linux-poerpc-next initially and intends to
resolve
the following problems:
- On pSeries platform, the EEH doesn't work after PHB hotplug
with drmgr. The root cause is that the EEH resources (
EEH devices, EEH caches) aren't released
Since pcibios_release_device() called by pci_stop_and_remove_bus_device()
has removed the EEH cache, we needn't do that again.
Cc: Bjorn Helgaas bhelg...@google.com
Acked-by: Bjorn Helgaas bhelg...@google.com
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
drivers/pci/hotplug
and introduce new flag EEH_PE_KEEP
to save the PE while doing hotplug during EEH error recovery.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h| 11 +--
arch/powerpc/include/asm/pci-bridge.h |1 -
arch/powerpc/kernel/eeh.c | 28
Make some functions public in order to support hotplug on either specific
PCI bus or PCI device in future.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |9 +
arch/powerpc/kernel/eeh.c |6 +++---
2 files changed, 12 insertions(+), 3
the reference to the PCI device in EEH core.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh.c |4
arch/powerpc/kernel/eeh_cache.c | 18 +-
2 files changed, 5 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc
based on device-tree
or real hardware. It's notable that pci_of_scan.c has been changed
for a bit in order to support the partial hotplug based on dev-tree.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-common.c |2 +
arch/powerpc/kernel/pci-hotplug.c | 14
Currently, we're transversing EEH devices by list_for_each_entry().
That's not safe enough because the EEH devices might be removed from
its parent PE while doing iteration. The patch replaces that with
list_for_each_entry_safe().
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch
those information to
EEH device in advance.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |8 +++-
arch/powerpc/kernel/eeh_pe.c | 25 +-
arch/powerpc/platforms/powernv/eeh-powernv.c | 11 +
arch/powerpc
] .ret_from_kernel_thread+0x5c/0x80
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/eeh_driver.c |6 +-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 9fda75d..36bed5a 100644
The patch overrides pcibios_release_device() to release EEH
resources (EEH cache, unbinding EEH device) for the indicated PCI
device.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-hotplug.c | 11 +++
1 files changed, 11 insertions(+), 0 deletions
from its PE, but with special flag. After the reset is done, those
EEH devices with the special flag will be scanned one by one.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |6 ++-
arch/powerpc/kernel/eeh.c| 30
The patch introduces flag EEH_DEV_SYSFS to trace that the sysfs for
the corresponding EEH device (then PCI device) has been added or
removed, in order to avoid race condition.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/eeh.h |2 ++
arch
pci_read_bridge_bases() already checks if the PCI bus is root
bus or not, so we needn't do same check in pcibios_fixup_bus()
and just remove it.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-common.c |3 +--
1 files changed, 1 insertions(+), 2 deletions
PHB3 doesn't support IO ports and we needn't IO segment map for that.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 13 +++--
1 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
The index of one specific PCI controller (struct pci_controller::
global_number) can tell that it's primary one or not. So we needn't
additional variable for that and just remove it.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c |4 +---
1
The patch enables fetching bus range from device-tree for the
specific PHB. If we can't get that from device-tree, the default
range [0 255] will be used.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 13 ++---
1 files changed, 10
On Wed, Jul 31, 2013 at 07:18:46PM +1000, Benjamin Herrenschmidt wrote:
On Wed, 2013-07-31 at 16:47 +0800, Gavin Shan wrote:
Usually, the property ibm,opal-num-pes of PHB dev-tree node
indicates the number of total PEs. If that property isn't existing
or valid, we should fall back to pick
On Tue, Aug 06, 2013 at 10:24:46PM -0400, Mike Qiu wrote:
'pe_no' hasn't been defined, it should be an typo error,
it should be 'frozen_pe_no'.
Also '__func__' should be added to IODA_EEH_DBG(),
Signed-off-by: Mike Qiu qiud...@linux.vnet.ibm.com
Acked-by: Gavin Shan sha...@linux.vnet.ibm.com
On Tue, Aug 06, 2013 at 10:25:14PM -0400, Mike Qiu wrote:
The procfs entry for global statistics has been missed on PowerNV
platform and the patch is going to add that.
Signed-off-by: Mike Qiu qiud...@linux.vnet.ibm.com
Acked-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel
On Wed, Aug 07, 2013 at 03:11:24PM +1000, Michael Ellerman wrote:
On Tue, Aug 06, 2013 at 10:24:46PM -0400, Mike Qiu wrote:
'pe_no' hasn't been defined, it should be an typo error,
it should be 'frozen_pe_no'.
Also '__func__' should be added to IODA_EEH_DBG(),
Signed-off-by: Mike Qiu
Use pci_is_pcie() to simplify code.
Signed-off-by: Yijing Wang wangyij...@huawei.com
Cc: Gavin Shan sha...@linux.vnet.ibm.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ker...@vger.kernel.org
It looks good
Naturally, EEH has been supported for PHB3, but we had some mask bits
to disable it because the firmware isn't ready. The series of patch
instends to remove those mask bits and enable EEH for PHB3. Besides,
the output messages from EEH has been reordered to reflect the correct
steps during EEH
The patch prints the error number while failing to retrieve error
log from firmware. It's helpful for debugging.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/eeh-ioda.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch
We already had some output messages from EEH core. Occasionally,
we can see the output messages from EEH core before the stack
dump. That's not what we expected. The patch fixes that and shows
the stack dump prior to output messages from EEH core.
Signed-off-by: Gavin Shan sha
Each PHB instance (struct pnv_phb) has its corresponding log blob,
which is used to hold the retrieved error log from firmware. The
current size of that (4096) isn't enough for PHB3 case and the patch
makes that double to 8192.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc
For now, we only support outbound error injection. Actually, the
hardware supports injecting inbound errors as well. The patch enables
to inject inbound errors.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/eeh-ioda.c | 59
The patch adds function ioda_eeh_phb3_phb_diag() to dump PHB3
PHB diag-data. That's called while detecting informative errors
or frozen PE on the specific PHB.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/opal.h | 65
PSERIES=n. Fix it by making PSERIES_MSI depend
directly on PPC_PSERIES.
Signed-off-by: Michael Ellerman mich...@ellerman.id.au
Reviewed-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc
on PPC_POWERNV.
Signed-off-by: Michael Ellerman mich...@ellerman.id.au
Reviewed-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/Kconfig | 5 -
arch/powerpc/sysdev/Kconfig| 2 +-
2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/powerpc/platforms
I just hit this on mainline from today (3.4.0-rc2-00065-gf549e08).
Haven't had a chance to narrow it down yet.
Thanks for the information. I'll try to reproduce the issue on
Firebird-L today. By the way, it seems that mstmread is some
user-level application accessing the config space while the
Ben, thanks a lot for the backtrace to help narrowing down the root
cause. Also thanks a lot for how to parse the backtrace and register
staff printed by oops ;-)
Finally, I successfully reproduced the issue on Firebird-L machine
without loading the corresponding device driver for Emulex
and retrieve the eeh device from OF node
instead of PCI device after the PCI device has been removed.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/eeh.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/pseries
Hi Nish,
# gcc --version
gcc (GCC) 4.4.6 20110731 (Red Hat 4.4.6-3)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
platform:
suggestion, the patch make CONFIG_EEH invisible
and keep it as always selected on pSeries platform.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/Kconfig |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms
In order to make iommu.c irrelative to CONFIG_EEH, we might figure out
the PE number of the PCI device during PCI probe time. Here're some
rough thoughts about the rework.
- Introduce additional field int pe_num to struct dev_archdata.
That would be traced like: (struct
The form affinity for NUMA is set to 1 if the firmware supports
OPAL. Otherwise, we have to retrieve that from OF node /chosen.
For the latter case, OF node /chosen was referred without
dereferencing.
The patch dereference OF node /chosen if necessary.
Signed-off-by: Gavin Shan sha
While creating the PCI root bus through function pci_create_root_bus()
of PCI core, it should have assigned the secondary bus number for the
newly created PCI root bus. Thus we needn't do the explicit assignment
for the secondary bus number again in pcibios_scan_phb().
Signed-off-by: Gavin Shan
.
The patch explicitly sets the size of P2P bridge BARs to zero in
case that resource reassignment is expected with PCI probe flag
PCI_REASSIGN_ALL_RSRC. In the result, it will save overall resource
required by the system without waste.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch
.
Thanks,
Gavin
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/kernel/pci-common.c | 16
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/pci-common.c
b/arch/powerpc/kernel/pci-common.c
index 8e78e93..0fe214d
sets of segments and there will be no overlap.
This patch provides a way for the host bridge to override the default
alignment values used by the resource allocation code for that purpose.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed
to the specified
PCI bus, then accessing the information regarding the minimal resource
alignment for I/O and MMIO bars of p2p bridges.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed-by: Richard Yang weiy...@linux.vnet.ibm.com
Acked-by: Benjamin
The patch introduces additional wrapper function to call the original
implementation so that the DMA can be configured for all existing PEs.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed-by: Richard Yang weiy...@linux.vnet.ibm.com
---
arch
We don't need them anymore. The patch removes those functions.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed-by: Richard Yang weiy...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 441 -
1
-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
b/arch/powerpc/platforms/powernv/pci-ioda.c
index 052a50f..ed8cf09 100644
--- a/arch/powerpc
our requirment: tracing PE based on their
cration time from top to bottom. So the patch does rename for the
DMA based PE list and introduces the list to trace the PEs sequentially
based on their creation time.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv
by children PEs.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed-by: Richard Yang weiy...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 89 +
1 file changed, 89 insertions(+)
diff --git
The rework is done based on Ben's initial ideas on how PE and resource
assignment is done on top of PCI core instead of doing resource assignment
by powernv platform. With the series of patches, the following aspects will
be covered:
- Only create PE based on PCI bus. Basically, there
/O
and MMIO minimal alignment for P2P bridges have been configured
while doing fixup for the PHBs.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed-by: Richard Yang weiy...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 46
sensitive PEs described as above.
Also, the function used to retrieve the corresponding PE according
to the given PCI device has been changed based on that because each
PCI device should trace the directly associated PE.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux
the PEs are not available, we won't check
the associated PE for the PCI device to be enabled.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Reviewed-by: Ram Pai linux...@us.ibm.com
Reviewed-by: Richard Yang weiy...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 19
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