summaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel/eeh.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/eeh.c')
-rw-r--r--arch/powerpc/kernel/eeh.c41
1 files changed, 26 insertions, 15 deletions
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 2248a1999c64..e1b6d8e17289 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -143,6 +143,8 @@ static int __init eeh_setup(char *str)
{
if (!strcmp(str, "off"))
eeh_add_flag(EEH_FORCE_DISABLED);
+ else if (!strcmp(str, "early_log"))
+ eeh_add_flag(EEH_EARLY_DUMP_LOG);
return 1;
}
@@ -758,30 +760,41 @@ static void eeh_reset_pe_once(struct eeh_pe *pe)
int eeh_reset_pe(struct eeh_pe *pe)
{
int flags = (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);
- int i, rc;
+ int i, state, ret;
+
+ /* Mark as reset and block config space */
+ eeh_pe_state_mark(pe, EEH_PE_RESET | EEH_PE_CFG_BLOCKED);
/* Take three shots at resetting the bus */
- for (i=0; i<3; i++) {
+ for (i = 0; i < 3; i++) {
eeh_reset_pe_once(pe);
/*
* EEH_PE_ISOLATED is expected to be removed after
* BAR restore.
*/
- rc = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC);
- if ((rc & flags) == flags)
- return 0;
+ state = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC);
+ if ((state & flags) == flags) {
+ ret = 0;
+ goto out;
+ }
- if (rc < 0) {
- pr_err("%s: Unrecoverable slot failure on PHB#%d-PE#%x",
+ if (state < 0) {
+ pr_warn("%s: Unrecoverable slot failure on PHB#%d-PE#%x",
__func__, pe->phb->global_number, pe->addr);
- return -1;
+ ret = -ENOTRECOVERABLE;
+ goto out;
}
- pr_err("EEH: bus reset %d failed on PHB#%d-PE#%x, rc=%d\n",
- i+1, pe->phb->global_number, pe->addr, rc);
+
+ /* We might run out of credits */
+ ret = -EIO;
+ pr_warn("%s: Failure %d resetting PHB#%x-PE#%x\n (%d)\n",
+ __func__, state, pe->phb->global_number, pe->addr, (i + 1));
}
- return -1;
+out:
+ eeh_pe_state_clear(pe, EEH_PE_RESET | EEH_PE_CFG_BLOCKED);
+ return ret;
}
/**
@@ -920,11 +933,8 @@ int eeh_init(void)
pr_warn("%s: Platform EEH operation not found\n",
__func__);
return -EEXIST;
- } else if ((ret = eeh_ops->init())) {
- pr_warn("%s: Failed to call platform init function (%d)\n",
- __func__, ret);
+ } else if ((ret = eeh_ops->init()))
return ret;
- }
/* Initialize EEH event */
ret = eeh_event_init();
@@ -1209,6 +1219,7 @@ int eeh_unfreeze_pe(struct eeh_pe *pe, bool sw_state)
static struct pci_device_id eeh_reset_ids[] = {
{ PCI_DEVICE(0x19a2, 0x0710) }, /* Emulex, BE */
{ PCI_DEVICE(0x10df, 0xe220) }, /* Emulex, Lancer */
+ { PCI_DEVICE(0x14e4, 0x1657) }, /* Broadcom BCM5719 */
{ 0 }
};