diff options
Diffstat (limited to 'drivers/scsi/smartpqi')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 110 |
1 files changed, 71 insertions, 39 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 51b5a11efa9c..e07282ed0f34 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -2026,6 +2026,23 @@ static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer); } +static bool pqi_raid_maps_equal(struct raid_map *raid_map1, struct raid_map *raid_map2) +{ + u32 raid_map1_size; + u32 raid_map2_size; + + if (raid_map1 == NULL || raid_map2 == NULL) + return raid_map1 == raid_map2; + + raid_map1_size = get_unaligned_le32(&raid_map1->structure_size); + raid_map2_size = get_unaligned_le32(&raid_map2->structure_size); + + if (raid_map1_size != raid_map2_size) + return false; + + return memcmp(raid_map1, raid_map2, raid_map1_size) == 0; +} + /* Assumes the SCSI device list lock is held. */ static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, @@ -2039,52 +2056,51 @@ static void pqi_scsi_update_device(struct pqi_ctrl_info *ctrl_info, existing_device->target_lun_valid = true; } - if (pqi_is_logical_device(existing_device) && - ctrl_info->logical_volume_rescan_needed) - existing_device->rescan = true; - /* By definition, the scsi3addr and wwid fields are already the same. */ existing_device->is_physical_device = new_device->is_physical_device; - existing_device->is_external_raid_device = - new_device->is_external_raid_device; - existing_device->is_expander_smp_device = - new_device->is_expander_smp_device; - existing_device->aio_enabled = new_device->aio_enabled; - memcpy(existing_device->vendor, new_device->vendor, - sizeof(existing_device->vendor)); - memcpy(existing_device->model, new_device->model, - sizeof(existing_device->model)); + memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor)); + memcpy(existing_device->model, new_device->model, sizeof(existing_device->model)); existing_device->sas_address = new_device->sas_address; - existing_device->raid_level = new_device->raid_level; existing_device->queue_depth = new_device->queue_depth; - existing_device->aio_handle = new_device->aio_handle; - existing_device->volume_status = new_device->volume_status; - existing_device->active_path_index = new_device->active_path_index; - existing_device->phy_id = new_device->phy_id; - existing_device->path_map = new_device->path_map; - existing_device->bay = new_device->bay; - existing_device->box_index = new_device->box_index; - existing_device->phys_box_on_bus = new_device->phys_box_on_bus; - existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type; - existing_device->multi_lun_device_lun_count = new_device->multi_lun_device_lun_count; - if (!existing_device->multi_lun_device_lun_count) - existing_device->multi_lun_device_lun_count = 1; - memcpy(existing_device->box, new_device->box, - sizeof(existing_device->box)); - memcpy(existing_device->phys_connector, new_device->phys_connector, - sizeof(existing_device->phys_connector)); - memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group)); - kfree(existing_device->raid_map); - existing_device->raid_map = new_device->raid_map; - existing_device->raid_bypass_configured = - new_device->raid_bypass_configured; - existing_device->raid_bypass_enabled = - new_device->raid_bypass_enabled; existing_device->device_offline = false; - /* To prevent this from being freed later. */ - new_device->raid_map = NULL; + if (pqi_is_logical_device(existing_device)) { + existing_device->is_external_raid_device = new_device->is_external_raid_device; + + if (existing_device->devtype == TYPE_DISK) { + existing_device->raid_level = new_device->raid_level; + existing_device->volume_status = new_device->volume_status; + if (ctrl_info->logical_volume_rescan_needed) + existing_device->rescan = true; + memset(existing_device->next_bypass_group, 0, sizeof(existing_device->next_bypass_group)); + if (!pqi_raid_maps_equal(existing_device->raid_map, new_device->raid_map)) { + kfree(existing_device->raid_map); + existing_device->raid_map = new_device->raid_map; + /* To prevent this from being freed later. */ + new_device->raid_map = NULL; + } + existing_device->raid_bypass_configured = new_device->raid_bypass_configured; + existing_device->raid_bypass_enabled = new_device->raid_bypass_enabled; + } + } else { + existing_device->aio_enabled = new_device->aio_enabled; + existing_device->aio_handle = new_device->aio_handle; + existing_device->is_expander_smp_device = new_device->is_expander_smp_device; + existing_device->active_path_index = new_device->active_path_index; + existing_device->phy_id = new_device->phy_id; + existing_device->path_map = new_device->path_map; + existing_device->bay = new_device->bay; + existing_device->box_index = new_device->box_index; + existing_device->phys_box_on_bus = new_device->phys_box_on_bus; + existing_device->phy_connected_dev_type = new_device->phy_connected_dev_type; + memcpy(existing_device->box, new_device->box, sizeof(existing_device->box)); + memcpy(existing_device->phys_connector, new_device->phys_connector, sizeof(existing_device->phys_connector)); + + existing_device->multi_lun_device_lun_count = new_device->multi_lun_device_lun_count; + if (existing_device->multi_lun_device_lun_count == 0) + existing_device->multi_lun_device_lun_count = 1; + } } static inline void pqi_free_device(struct pqi_scsi_dev *device) @@ -3675,6 +3691,20 @@ static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info, return ack_event; } +static void pqi_disable_raid_bypass(struct pqi_ctrl_info *ctrl_info) +{ + unsigned long flags; + struct pqi_scsi_dev *device; + + spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); + + list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) + if (device->raid_bypass_enabled) + device->raid_bypass_enabled = false; + + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); +} + static void pqi_event_worker(struct work_struct *work) { unsigned int i; @@ -3702,6 +3732,8 @@ static void pqi_event_worker(struct work_struct *work) rescan_needed = true; if (event->event_type == PQI_EVENT_TYPE_LOGICAL_DEVICE) ctrl_info->logical_volume_rescan_needed = true; + else if (event->event_type == PQI_EVENT_TYPE_AIO_STATE_CHANGE) + pqi_disable_raid_bypass(ctrl_info); } if (ack_event) pqi_acknowledge_event(ctrl_info, event); |