diff options
Diffstat (limited to 'drivers/scsi/hpsa.c')
| -rw-r--r-- | drivers/scsi/hpsa.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 9baf04e13a70..a677dfe09998 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -728,6 +728,29 @@ static ssize_t unique_id_show(struct device *dev, sn[12], sn[13], sn[14], sn[15]); } +static ssize_t sas_address_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; + u64 sas_address; + + sdev = to_scsi_device(dev); + h = sdev_to_hba(sdev); + spin_lock_irqsave(&h->lock, flags); + hdev = sdev->hostdata; + if (!hdev || is_logical_device(hdev) || !hdev->expose_device) { + spin_unlock_irqrestore(&h->lock, flags); + return -ENODEV; + } + sas_address = hdev->sas_address; + spin_unlock_irqrestore(&h->lock, flags); + + return snprintf(buf, PAGE_SIZE, "0x%016llx\n", sas_address); +} + static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev, struct device_attribute *attr, char *buf) { @@ -840,6 +863,7 @@ 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(sas_address, S_IRUGO, sas_address_show, NULL); 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); @@ -865,6 +889,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { &dev_attr_unique_id, &dev_attr_hp_ssd_smart_path_enabled, &dev_attr_path_info, + &dev_attr_sas_address, NULL, }; |