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authorLinas Vepstas <linas@linas.org>2005-11-03 18:52:49 -0600
committerPaul Mackerras <paulus@samba.org>2006-01-10 15:28:32 +1100
commit77bd741561016134d1761d6101c4f0361025062f (patch)
tree5e3389b6941add4b24a2be64c730b7a9087c1f2f /include/asm-powerpc
parent977127174a7dff52d17faeeb4c4949a54221881f (diff)
downloadop-kernel-dev-77bd741561016134d1761d6101c4f0361025062f.zip
op-kernel-dev-77bd741561016134d1761d6101c4f0361025062f.tar.gz
[PATCH] powerpc: PCI Error Recovery: PPC64 core recovery routines
Various PCI bus errors can be signaled by newer PCI controllers. The core error recovery routines are architecture dependent. This patch adds a recovery infrastructure for the PPC64 pSeries systems. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> (cherry picked from e8ca11b460c4c9c7fa6b529be221529ebd770e38 commit)
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/eeh.h8
-rw-r--r--include/asm-powerpc/eeh_event.h7
-rw-r--r--include/asm-powerpc/ppc-pci.h9
3 files changed, 19 insertions, 5 deletions
diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h
index 4395b7b..b263fb2 100644
--- a/include/asm-powerpc/eeh.h
+++ b/include/asm-powerpc/eeh.h
@@ -34,9 +34,11 @@ struct device_node;
extern int eeh_subsystem_enabled;
/* Values for eeh_mode bits in device_node */
-#define EEH_MODE_SUPPORTED (1<<0)
-#define EEH_MODE_NOCHECK (1<<1)
-#define EEH_MODE_ISOLATED (1<<2)
+#define EEH_MODE_SUPPORTED (1<<0)
+#define EEH_MODE_NOCHECK (1<<1)
+#define EEH_MODE_ISOLATED (1<<2)
+#define EEH_MODE_RECOVERING (1<<3)
+#define EEH_MODE_IRQ_DISABLED (1<<4)
/* Max number of EEH freezes allowed before we consider the device
* to be permanently disabled. */
diff --git a/include/asm-powerpc/eeh_event.h b/include/asm-powerpc/eeh_event.h
index 5e11a00..93d55a2 100644
--- a/include/asm-powerpc/eeh_event.h
+++ b/include/asm-powerpc/eeh_event.h
@@ -30,7 +30,7 @@ struct eeh_event {
struct list_head list;
struct device_node *dn; /* struct device node */
struct pci_dev *dev; /* affected device */
- int state;
+ enum pci_channel_state state; /* PCI bus state for the affected device */
int time_unavail; /* milliseconds until device might be available */
};
@@ -47,8 +47,11 @@ struct eeh_event {
*/
int eeh_send_failure_event (struct device_node *dn,
struct pci_dev *dev,
- int reset_state,
+ enum pci_channel_state state,
int time_unavail);
+/* Main recovery function */
+void handle_eeh_events (struct eeh_event *);
+
#endif /* __KERNEL__ */
#endif /* ASM_PPC64_EEH_EVENT_H */
diff --git a/include/asm-powerpc/ppc-pci.h b/include/asm-powerpc/ppc-pci.h
index bdef312..caf67a3 100644
--- a/include/asm-powerpc/ppc-pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -53,6 +53,15 @@ extern unsigned long pci_probe_only;
/* ---- EEH internal-use-only related routines ---- */
#ifdef CONFIG_EEH
/**
+ * eeh_slot_error_detail -- record and EEH error condition to the log
+ * @severity: 1 if temporary, 2 if permanent failure.
+ *
+ * Obtains the the EEH error details from the RTAS subsystem,
+ * and then logs these details with the RTAS error log system.
+ */
+void eeh_slot_error_detail (struct pci_dn *pdn, int severity);
+
+/**
* rtas_set_slot_reset -- unfreeze a frozen slot
*
* Clear the EEH-frozen condition on a slot. This routine
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