Commit c1988684 authored by Scott Teel's avatar Scott Teel Committed by James Bottomley
Browse files

[SCSI] hpsa: add hp_ssd_smart_path_enabled sysfs attribute 



Signed-off-by: default avatarScott Teel <scott.teel@hp.com>
Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 5f389360

drivers/scsi/hpsa.c

+25 −0
Original line number Diff line number Diff line
@@ -508,10 +508,34 @@ static ssize_t unique_id_show(struct device *dev, 
			sn[12], sn[13], sn[14], sn[15]);

}



static ssize_t host_show_hp_ssd_smart_path_enabled(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 offload_enabled;



	sdev = to_scsi_device(dev);

	h = sdev_to_hba(sdev);

	spin_lock_irqsave(&h->lock, flags);

	hdev = sdev->hostdata;

	if (!hdev) {

		spin_unlock_irqrestore(&h->lock, flags);

		return -ENODEV;

	}

	offload_enabled = hdev->offload_enabled;

	spin_unlock_irqrestore(&h->lock, flags);

	return snprintf(buf, 20, "%d\n", offload_enabled);

}



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(firmware_revision, S_IRUGO,

	host_show_firmware_revision, NULL);

static DEVICE_ATTR(commands_outstanding, S_IRUGO,
@@ -525,6 +549,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { 
	&dev_attr_raid_level,

	&dev_attr_lunid,

	&dev_attr_unique_id,

	&dev_attr_hp_ssd_smart_path_enabled,

	NULL,

};