[SCSI] hpsa: add hp_ssd_smart_path_enabled sysfs attribute
Signed-off-by: Scott Teel <scott.teel@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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@ -508,10 +508,34 @@ static ssize_t unique_id_show(struct device *dev,
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sn[12], sn[13], sn[14], sn[15]);
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sn[12], sn[13], sn[14], sn[15]);
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}
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}
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static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct ctlr_info *h;
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struct scsi_device *sdev;
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struct hpsa_scsi_dev_t *hdev;
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unsigned long flags;
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int offload_enabled;
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sdev = to_scsi_device(dev);
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h = sdev_to_hba(sdev);
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spin_lock_irqsave(&h->lock, flags);
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hdev = sdev->hostdata;
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if (!hdev) {
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spin_unlock_irqrestore(&h->lock, flags);
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return -ENODEV;
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}
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offload_enabled = hdev->offload_enabled;
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spin_unlock_irqrestore(&h->lock, flags);
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return snprintf(buf, 20, "%d\n", offload_enabled);
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}
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static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
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static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
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static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
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static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
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static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
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static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
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static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
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static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
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static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
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host_show_hp_ssd_smart_path_enabled, NULL);
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static DEVICE_ATTR(firmware_revision, S_IRUGO,
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static DEVICE_ATTR(firmware_revision, S_IRUGO,
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host_show_firmware_revision, NULL);
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host_show_firmware_revision, NULL);
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static DEVICE_ATTR(commands_outstanding, S_IRUGO,
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static DEVICE_ATTR(commands_outstanding, S_IRUGO,
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@ -525,6 +549,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = {
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&dev_attr_raid_level,
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&dev_attr_raid_level,
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&dev_attr_lunid,
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&dev_attr_lunid,
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&dev_attr_unique_id,
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&dev_attr_unique_id,
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&dev_attr_hp_ssd_smart_path_enabled,
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NULL,
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NULL,
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};
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};
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