diff options
Diffstat (limited to 'arch/powerpc/kernel/eeh_driver.c')
| -rw-r--r-- | arch/powerpc/kernel/eeh_driver.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index 89eb4bc34d3a..80dfe8965df9 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -416,7 +416,10 @@ static void *eeh_rmv_device(void *data, void *userdata) driver = eeh_pcid_get(dev); if (driver) { eeh_pcid_put(dev); - if (driver->err_handler) + if (driver->err_handler && + driver->err_handler->error_detected && + driver->err_handler->slot_reset && + driver->err_handler->resume) return NULL; } @@ -587,10 +590,16 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) eeh_ops->configure_bridge(pe); eeh_pe_restore_bars(pe); - /* Clear frozen state */ - rc = eeh_clear_pe_frozen_state(pe, false); - if (rc) - return rc; + /* + * If it's PHB PE, the frozen state on all available PEs should have + * been cleared by the PHB reset. Otherwise, we unfreeze the PE and its + * child PEs because they might be in frozen state. + */ + if (!(pe->type & EEH_PE_PHB)) { + rc = eeh_clear_pe_frozen_state(pe, false); + if (rc) + return rc; + } /* Give the system 5 seconds to finish running the user-space * hotplug shutdown scripts, e.g. ifdown for ethernet. Yes, @@ -655,9 +664,17 @@ static void eeh_handle_normal_event(struct eeh_pe *pe) * to accomplish the reset. Each child gets a report of the * status ... if any child can't handle the reset, then the entire * slot is dlpar removed and added. + * + * When the PHB is fenced, we have to issue a reset to recover from + * the error. Override the result if necessary to have partially + * hotplug for this case. */ pr_info("EEH: Notify device drivers to shutdown\n"); eeh_pe_dev_traverse(pe, eeh_report_error, &result); + if ((pe->type & EEH_PE_PHB) && + result != PCI_ERS_RESULT_NONE && + result != PCI_ERS_RESULT_NEED_RESET) + result = PCI_ERS_RESULT_NEED_RESET; /* Get the current PCI slot state. This can take a long time, * sometimes over 300 seconds for certain systems. |