diff options
| -rw-r--r-- | drivers/scsi/hpsa.c | 122 | ||||
| -rw-r--r-- | drivers/scsi/hpsa.h | 5 |
2 files changed, 127 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 984bbd9e0535..43c34a61c66c 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -264,6 +264,7 @@ static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, static void hpsa_command_resubmit_worker(struct work_struct *work); static u32 lockup_detected(struct ctlr_info *h); static int detect_controller_lockup(struct ctlr_info *h); +static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device); static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev) { @@ -714,12 +715,106 @@ static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev, return snprintf(buf, 20, "%d\n", offload_enabled); } +#define MAX_PATHS 8 +#define PATH_STRING_LEN 50 + +static ssize_t path_info_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ctlr_info *h; + struct scsi_device *sdev; + struct hpsa_scsi_dev_t *hdev; + unsigned long flags; + int i; + int output_len = 0; + u8 box; + u8 bay; + u8 path_map_index = 0; + char *active; + unsigned char phys_connector[2]; + unsigned char path[MAX_PATHS][PATH_STRING_LEN]; + + memset(path, 0, MAX_PATHS * PATH_STRING_LEN); + sdev = to_scsi_device(dev); + h = sdev_to_hba(sdev); + spin_lock_irqsave(&h->devlock, flags); + hdev = sdev->hostdata; + if (!hdev) { + spin_unlock_irqrestore(&h->devlock, flags); + return -ENODEV; + } + + bay = hdev->bay; + for (i = 0; i < MAX_PATHS; i++) { + path_map_index = 1<<i; + if (i == hdev->active_path_index) + active = "Active"; + else if (hdev->path_map & path_map_index) + active = "Inactive"; + else + continue; + + output_len = snprintf(path[i], + PATH_STRING_LEN, "[%d:%d:%d:%d] %20.20s ", + h->scsi_host->host_no, + hdev->bus, hdev->target, hdev->lun, + scsi_device_type(hdev->devtype)); + + if (is_ext_target(h, hdev) || + (hdev->devtype == TYPE_RAID) || + is_logical_dev_addr_mode(hdev->scsi3addr)) { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, "%s\n", + active); + continue; + } + + box = hdev->box[i]; + memcpy(&phys_connector, &hdev->phys_connector[i], + sizeof(phys_connector)); + if (phys_connector[0] < '0') + phys_connector[0] = '0'; + if (phys_connector[1] < '0') + phys_connector[1] = '0'; + if (hdev->phys_connector[i] > 0) + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, + "PORT: %.2s ", + phys_connector); + if (hdev->devtype == TYPE_DISK && h->hba_mode_enabled) { + if (box == 0 || box == 0xFF) { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, + "BAY: %hhu %s\n", + bay, active); + } else { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, + "BOX: %hhu BAY: %hhu %s\n", + box, bay, active); + } + } else if (box != 0 && box != 0xFF) { + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, "BOX: %hhu %s\n", + box, active); + } else + output_len += snprintf(path[i] + output_len, + PATH_STRING_LEN, "%s\n", active); + } + + spin_unlock_irqrestore(&h->devlock, flags); + return snprintf(buf, output_len+1, "%s%s%s%s%s%s%s%s", + path[0], path[1], path[2], path[3], + path[4], path[5], path[6], path[7]); +} + static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL); static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL); static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan); static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO, host_show_hp_ssd_smart_path_enabled, NULL); +static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL); static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH, host_show_hp_ssd_smart_path_status, host_store_hp_ssd_smart_path_status); @@ -741,6 +836,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { &dev_attr_lunid, &dev_attr_unique_id, &dev_attr_hp_ssd_smart_path_enabled, + &dev_attr_path_info, &dev_attr_lockup_detected, NULL, }; @@ -3611,6 +3707,31 @@ static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, atomic_set(&dev->reset_cmds_out, 0); } +static void hpsa_get_path_info(struct hpsa_scsi_dev_t *this_device, + u8 *lunaddrbytes, + struct bmic_identify_physical_device *id_phys) +{ + if (PHYS_IOACCEL(lunaddrbytes) + && this_device->ioaccel_handle) + this_device->hba_ioaccel_enabled = 1; + + memcpy(&this_device->active_path_index, + &id_phys->active_path_number, + sizeof(this_device->active_path_index)); + memcpy(&this_device->path_map, + &id_phys->redundant_path_present_map, + sizeof(this_device->path_map)); + memcpy(&this_device->box, + &id_phys->alternate_paths_phys_box_on_port, + sizeof(this_device->box)); + memcpy(&this_device->phys_connector, + &id_phys->alternate_paths_phys_connector, + sizeof(this_device->phys_connector)); + memcpy(&this_device->bay, + &id_phys->phys_bay_in_box, + sizeof(this_device->bay)); +} + static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) { /* the idea here is we could get notified @@ -3771,6 +3892,7 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) hpsa_get_ioaccel_drive_info(h, this_device, lunaddrbytes, id_phys); + hpsa_get_path_info(this_device, lunaddrbytes, id_phys); atomic_set(&this_device->ioaccel_cmds_out, 0); ncurrent++; break; diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 6f6084b39420..ab014d3f3656 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -50,6 +50,11 @@ struct hpsa_scsi_dev_t { * device via "ioaccel" path. */ u32 ioaccel_handle; + u8 active_path_index; + u8 path_map; + u8 bay; + u8 box[8]; + u16 phys_connector[8]; int offload_config; /* I/O accel RAID offload configured */ int offload_enabled; /* I/O accel RAID offload enabled */ int offload_to_be_enabled; |