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-rw-r--r--arch/powerpc/platforms/pseries/eeh.c36
1 files changed, 24 insertions, 12 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 4534886e3b4..84bc8f7e17e 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -478,7 +478,7 @@ eeh_slot_availability(struct pci_dn *pdn)
printk (KERN_ERR "EEH: Slot unavailable: rc=%d, rets=%d %d %d\n",
rc, rets[0], rets[1], rets[2]);
- return -1;
+ return -2;
}
/**
@@ -546,11 +546,10 @@ rtas_pci_slot_reset(struct pci_dn *pdn, int state)
BUID_HI(pdn->phb->buid),
BUID_LO(pdn->phb->buid),
state);
- if (rc) {
- printk (KERN_WARNING "EEH: Unable to reset the failed slot, (%d) #RST=%d dn=%s\n",
+ if (rc)
+ printk (KERN_WARNING "EEH: Unable to reset the failed slot,"
+ " (%d) #RST=%d dn=%s\n",
rc, state, pdn->node->full_name);
- return;
- }
}
/**
@@ -560,11 +559,8 @@ rtas_pci_slot_reset(struct pci_dn *pdn, int state)
* Return 0 if success, else a non-zero value.
*/
-int
-rtas_set_slot_reset(struct pci_dn *pdn)
+static void __rtas_set_slot_reset(struct pci_dn *pdn)
{
- int i, rc;
-
rtas_pci_slot_reset (pdn, 1);
/* The PCI bus requires that the reset be held high for at least
@@ -585,17 +581,33 @@ rtas_set_slot_reset(struct pci_dn *pdn)
* up traffic. */
#define PCI_BUS_SETTLE_TIME_MSEC 1800
msleep (PCI_BUS_SETTLE_TIME_MSEC);
+}
+
+int rtas_set_slot_reset(struct pci_dn *pdn)
+{
+ int i, rc;
+
+ __rtas_set_slot_reset(pdn);
/* Now double check with the firmware to make sure the device is
* ready to be used; if not, wait for recovery. */
for (i=0; i<10; i++) {
rc = eeh_slot_availability (pdn);
- if (rc < 0)
- printk (KERN_ERR "EEH: failed (%d) to reset slot %s\n", rc, pdn->node->full_name);
if (rc == 0)
return 0;
- if (rc < 0)
+
+ if (rc == -2) {
+ printk (KERN_ERR "EEH: failed (%d) to reset slot %s\n",
+ i, pdn->node->full_name);
+ __rtas_set_slot_reset(pdn);
+ continue;
+ }
+
+ if (rc < 0) {
+ printk (KERN_ERR "EEH: unrecoverable slot failure %s\n",
+ pdn->node->full_name);
return -1;
+ }
msleep (rc+100);
}