The patch titled
powerpc/pseries: Increment fail counter in PCI recovery
has been removed from the -mm tree. Its filename is
powerpc-pseries-increment-fail-counter-in-pci-recovery.patch
This patch was probably dropped from -mm because
it has now been merged into a subsystem tree or
into Linus's tree, or because it was folded into
its parent patch in the -mm tree.
------------------------------------------------------
Subject: powerpc/pseries: Increment fail counter in PCI recovery
From: Linas Vepstas <linas@xxxxxxxxxxxxxx>
When a PCI device driver does not support PCI error recovery, the
powerpc/pseries code takes a walk through a branch of code that resets the
failure counter. Because of this, if a broken PCI card is present, the
kernel will attempt to reset it an infinite number of times. (This is
annoying but mostly harmless: each reset takes about 10-20 seconds, and
uses almost no CPU time).
This patch preserves the failure count across resets.
Signed-off-by: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/powerpc/platforms/pseries/eeh_driver.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletion(-)
diff -puN arch/powerpc/platforms/pseries/eeh_driver.c~powerpc-pseries-increment-fail-counter-in-pci-recovery arch/powerpc/platforms/pseries/eeh_driver.c
--- 25/arch/powerpc/platforms/pseries/eeh_driver.c~powerpc-pseries-increment-fail-counter-in-pci-recovery Mon May 8 12:36:40 2006
+++ 25-akpm/arch/powerpc/platforms/pseries/eeh_driver.c Mon May 8 12:36:40 2006
@@ -201,7 +201,11 @@ static void eeh_report_failure(struct pc
static int eeh_reset_device (struct pci_dn *pe_dn, struct pci_bus *bus)
{
- int rc;
+ int cnt, rc;
+
+ /* pcibios will clear the counter; save the value */
+ cnt = pe_dn->eeh_freeze_count;
+
if (bus)
pcibios_remove_pci_devices(bus);
@@ -240,6 +244,7 @@ static int eeh_reset_device (struct pci_
ssleep (5);
pcibios_add_pci_devices(bus);
}
+ pe_dn->eeh_freeze_count = cnt;
return 0;
}
_
Patches currently in -mm which might be from linas@xxxxxxxxxxxxxx are
pci-error-recovery-e100-network-device-driver.patch
e1000-prevent-statistics-from-getting-garbled-during-reset.patch
git-powerpc.patch
-
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