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authorLinas Vepstas <linas@austin.ibm.com>2006-04-19 00:05:21 -0400
committerPaul Mackerras <paulus@samba.org>2006-04-22 04:46:13 -0400
commitac325acd50013fa8f4953208cbb96504dec9b12a (patch)
tree6c08470d68be38504c6aadae168b873efb39e8db /include/asm-powerpc/eeh_event.h
parent4bd174fe1cca738f53cf8bb9ac3cb327b1f516ed (diff)
[PATCH] powerpc/pseries: clear PCI failure counter if no new failures
The current PCI error recovery system keeps track of the number of PCI card resets, and refuses to bring a card back up if this number is too large. The goal of doing this was to avoid an infinite loop of resets if a card is obviously dead. However, if the failures are rare, but the machine has a high uptime, this mechanism might still be triggered; this is too harsh. This patch will avoids this problem by decrementing the fail count after an hour. Thus, as long as a pci card BSOD's less than 6 times an hour, it will continue to be reset indefinitely. If it's failure rate is greater than that, it will be taken off-line permanently. This patch is larger than it might otherwise be because it changes indentation by removing a pointless while-loop. The while loop is not needed, as the handler is invoked once fo each event (by schedule_work()); the loop is leftover cruft from an earlier implementation. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/eeh_event.h')
-rw-r--r--include/asm-powerpc/eeh_event.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-powerpc/eeh_event.h b/include/asm-powerpc/eeh_event.h
index 93d55a2bebfd..dc6bf0ffb796 100644
--- a/include/asm-powerpc/eeh_event.h
+++ b/include/asm-powerpc/eeh_event.h
@@ -18,8 +18,8 @@
18 * Copyright (c) 2005 Linas Vepstas <linas@linas.org> 18 * Copyright (c) 2005 Linas Vepstas <linas@linas.org>
19 */ 19 */
20 20
21#ifndef ASM_PPC64_EEH_EVENT_H 21#ifndef ASM_POWERPC_EEH_EVENT_H
22#define ASM_PPC64_EEH_EVENT_H 22#define ASM_POWERPC_EEH_EVENT_H
23#ifdef __KERNEL__ 23#ifdef __KERNEL__
24 24
25/** EEH event -- structure holding pci controller data that describes 25/** EEH event -- structure holding pci controller data that describes
@@ -39,7 +39,7 @@ struct eeh_event {
39 * @dev pci device 39 * @dev pci device
40 * 40 *
41 * This routine builds a PCI error event which will be delivered 41 * This routine builds a PCI error event which will be delivered
42 * to all listeners on the peh_notifier_chain. 42 * to all listeners on the eeh_notifier_chain.
43 * 43 *
44 * This routine can be called within an interrupt context; 44 * This routine can be called within an interrupt context;
45 * the actual event will be delivered in a normal context 45 * the actual event will be delivered in a normal context
@@ -51,7 +51,7 @@ int eeh_send_failure_event (struct device_node *dn,
51 int time_unavail); 51 int time_unavail);
52 52
53/* Main recovery function */ 53/* Main recovery function */
54void handle_eeh_events (struct eeh_event *); 54struct pci_dn * handle_eeh_events (struct eeh_event *);
55 55
56#endif /* __KERNEL__ */ 56#endif /* __KERNEL__ */
57#endif /* ASM_PPC64_EEH_EVENT_H */ 57#endif /* ASM_POWERPC_EEH_EVENT_H */