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Subject[PATCH 4/7] ppc64: EEH PCI slot error details abstraction
From

04-eeh-slot-error-detail.patch

This patch encapsulates a section of code that reports the EEH event.
The new subroutine can be used in several places to report the eror.

Signed-off-by: Linas Vepstas <linas@linas.org>


Index: linux-2.6.14-rc2-git6/arch/ppc64/kernel/eeh.c
===================================================================
--- linux-2.6.14-rc2-git6.orig/arch/ppc64/kernel/eeh.c 2005-09-29 16:05:53.025549160 -0500
+++ linux-2.6.14-rc2-git6/arch/ppc64/kernel/eeh.c 2005-09-29 16:06:25.583986100 -0500
@@ -397,6 +397,28 @@
/* --------------------------------------------------------------- */
/* Above lies the PCI Address Cache. Below lies the EEH event infrastructure */

+void eeh_slot_error_detail (struct pci_dn *pdn, int severity)
+{
+ unsigned long flags;
+ int rc;
+
+ /* Log the error with the rtas logger */
+ spin_lock_irqsave(&slot_errbuf_lock, flags);
+ memset(slot_errbuf, 0, eeh_error_buf_size);
+
+ rc = rtas_call(ibm_slot_error_detail,
+ 8, 1, NULL, pdn->eeh_config_addr,
+ BUID_HI(pdn->phb->buid),
+ BUID_LO(pdn->phb->buid), NULL, 0,
+ virt_to_phys(slot_errbuf),
+ eeh_error_buf_size,
+ severity);
+
+ if (rc == 0)
+ log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0);
+ spin_unlock_irqrestore(&slot_errbuf_lock, flags);
+}
+
/**
* eeh_register_notifier - Register to find out about EEH events.
* @nb: notifier block to callback on events
@@ -454,9 +476,12 @@
* Since the panic_on_oops sysctl is used to halt the system
* in light of potential corruption, we can use it here.
*/
- if (panic_on_oops)
+ if (panic_on_oops) {
+ struct device_node *dn = pci_device_to_OF_node(dev);
+ eeh_slot_error_detail (PCI_DN(dn), 2 /* Permanent Error */);
panic("EEH: MMIO failure (%d) on device:%s\n", reset_state,
pci_name(dev));
+ }
else {
__get_cpu_var(ignored_failures)++;
printk(KERN_INFO "EEH: Ignored MMIO failure (%d) on device:%s\n",
@@ -539,7 +564,7 @@
int ret;
int rets[3];
unsigned long flags;
- int rc, reset_state;
+ int reset_state;
struct eeh_event *event;
struct pci_dn *pdn;

@@ -603,20 +628,7 @@

reset_state = rets[0];

- spin_lock_irqsave(&slot_errbuf_lock, flags);
- memset(slot_errbuf, 0, eeh_error_buf_size);
-
- rc = rtas_call(ibm_slot_error_detail,
- 8, 1, NULL, pdn->eeh_config_addr,
- BUID_HI(pdn->phb->buid),
- BUID_LO(pdn->phb->buid), NULL, 0,
- virt_to_phys(slot_errbuf),
- eeh_error_buf_size,
- 1 /* Temporary Error */);
-
- if (rc == 0)
- log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0);
- spin_unlock_irqrestore(&slot_errbuf_lock, flags);
+ eeh_slot_error_detail (pdn, 1 /* Temporary Error */);

printk(KERN_INFO "EEH: MMIO failure (%d) on device: %s %s\n",
rets[0], dn->name, dn->full_name);
@@ -783,6 +795,8 @@
struct device_node *phb, *np;
struct eeh_early_enable_info info;

+ spin_lock_init(&slot_errbuf_lock);
+
np = of_find_node_by_path("/rtas");
if (np == NULL)
return;
-
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