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authorGavin Shan <gwshan@linux.vnet.ibm.com>2014-12-11 14:28:56 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2015-01-23 14:02:54 +1100
commit1b28f170d99170a1fdd22818a9610a73196b391d (patch)
tree27b9cdf7d39c70633f99f7d91a19ad364a41e820 /arch/powerpc/include/asm/eeh.h
parent432227e9077eec13b3caf3aec6087f94a2f4327f (diff)
downloadlinux-1b28f170d99170a1fdd22818a9610a73196b391d.tar.bz2
powerpc/eeh: Allow to set maximal frozen times
When PE's frozen count hits maximal allowed frozen times, which is 5 currently, it will be forced to be offline permanently. Once the PE is removed permanently, rebooting machine is required to bring the PE back. It's not convienent when testing EEH functionality. The patch exports the maximal allowed frozen times through debugfs entry (/sys/kernel/debug/powerpc/eeh_max_freezes). Requested-by: Ryan Grimm <grimm@linux.vnet.ibm.com> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/eeh.h')
-rw-r--r--arch/powerpc/include/asm/eeh.h7
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index 3e4dd34f2bd2..55abfd09e47f 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -218,6 +218,7 @@ struct eeh_ops {
};
extern int eeh_subsystem_flags;
+extern int eeh_max_freezes;
extern struct eeh_ops *eeh_ops;
extern raw_spinlock_t confirm_error_lock;
@@ -255,12 +256,6 @@ static inline void eeh_serialize_unlock(unsigned long flags)
raw_spin_unlock_irqrestore(&confirm_error_lock, flags);
}
-/*
- * Max number of EEH freezes allowed before we consider the device
- * to be permanently disabled.
- */
-#define EEH_MAX_ALLOWED_FREEZES 5
-
typedef void *(*eeh_traverse_func)(void *data, void *flag);
void eeh_set_pe_aux_size(int size);
int eeh_phb_pe_create(struct pci_controller *phb);