/*********** diagnostic trigger suppport *** END ****************************/
-
-
/*****************************************/
struct device_attribute *mpt3sas_host_attrs[] = {
}
static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
+/**
+ * _ctl_device_ncq_io_prio_show - send prioritized io commands to device
+ * @dev - pointer to embedded device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' sdev attribute, only works with SATA
+ */
+static ssize_t
+_ctl_device_ncq_prio_enable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ sas_device_priv_data->ncq_prio_enable);
+}
+
+static ssize_t
+_ctl_device_ncq_prio_enable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
+ bool ncq_prio_enable = 0;
+
+ if (kstrtobool(buf, &ncq_prio_enable))
+ return -EINVAL;
+
+ if (!scsih_ncq_prio_supp(sdev))
+ return -EINVAL;
+
+ sas_device_priv_data->ncq_prio_enable = ncq_prio_enable;
+ return strlen(buf);
+}
+static DEVICE_ATTR(sas_ncq_prio_enable, S_IRUGO | S_IWUSR,
+ _ctl_device_ncq_prio_enable_show,
+ _ctl_device_ncq_prio_enable_store);
+
struct device_attribute *mpt3sas_dev_attrs[] = {
&dev_attr_sas_address,
&dev_attr_sas_device_handle,
+ &dev_attr_sas_ncq_prio_enable,
NULL,
};