[SCSI] qla2xxx: Implementation of bidirectional.

[jejb: merge fix for introduced warning]
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 5ab953029f8d..ff2439bd9b4b 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1251,6 +1251,31 @@ qla2x00_fw_state_show(struct device *dev, struct device_attribute *attr,
             state[1], state[2], state[3], state[4]);
 }
 
+static ssize_t
+qla2x00_diag_requests_show(struct device *dev,
+        struct device_attribute *attr, char *buf)
+{
+        scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+
+        if (!IS_BIDI_CAPABLE(vha->hw))
+                return snprintf(buf, PAGE_SIZE, "\n");
+
+        return snprintf(buf, PAGE_SIZE, "%llu\n", vha->bidi_stats.io_count);
+}
+
+static ssize_t
+qla2x00_diag_megabytes_show(struct device *dev,
+        struct device_attribute *attr, char *buf)
+{
+        scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+
+        if (!IS_BIDI_CAPABLE(vha->hw))
+                return snprintf(buf, PAGE_SIZE, "\n");
+
+        return snprintf(buf, PAGE_SIZE, "%llu\n",
+            vha->bidi_stats.transfer_bytes >> 20);
+}
+
 static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
 static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
 static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
@@ -1289,6 +1314,8 @@ static DEVICE_ATTR(vn_port_mac_address, S_IRUGO,
 static DEVICE_ATTR(fabric_param, S_IRUGO, qla2x00_fabric_param_show, NULL);
 static DEVICE_ATTR(fw_state, S_IRUGO, qla2x00_fw_state_show, NULL);
 static DEVICE_ATTR(thermal_temp, S_IRUGO, qla2x00_thermal_temp_show, NULL);
+static DEVICE_ATTR(diag_requests, S_IRUGO, qla2x00_diag_requests_show, NULL);
+static DEVICE_ATTR(diag_megabytes, S_IRUGO, qla2x00_diag_megabytes_show, NULL);
 
 struct device_attribute *qla2x00_host_attrs[] = {
         &dev_attr_driver_version,
@@ -1318,6 +1345,8 @@ struct device_attribute *qla2x00_host_attrs[] = {
         &dev_attr_fw_state,
         &dev_attr_optrom_gold_fw_version,
         &dev_attr_thermal_temp,
+        &dev_attr_diag_requests,
+        &dev_attr_diag_megabytes,
         NULL,
 };