[SCSI] qla2xxx: Further restrict ZIO mode support.

Only support ZIO mode 6 on specific ISP types.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 5 insertions, 12 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 488b3d16427b..fee0c493775b 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -507,9 +507,6 @@ qla2x00_zio_show(struct class_device *cdev, char *buf)
         int len = 0;
 
         switch (ha->zio_mode) {
-        case QLA_ZIO_MODE_5:
-                len += snprintf(buf + len, PAGE_SIZE-len, "Mode 5\n");
-                break;
         case QLA_ZIO_MODE_6:
                 len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n");
                 break;
@@ -527,20 +524,16 @@ qla2x00_zio_store(struct class_device *cdev, const char *buf, size_t count)
         int val = 0;
         uint16_t zio_mode;
 
+        if (!IS_ZIO_SUPPORTED(ha))
+                return -ENOTSUPP;
+
         if (sscanf(buf, "%d", &val) != 1)
                 return -EINVAL;
 
-        switch (val) {
-        case 1:
-                zio_mode = QLA_ZIO_MODE_5;
-                break;
-        case 2:
+        if (val)
                 zio_mode = QLA_ZIO_MODE_6;
-                break;
-        default:
+        else
                 zio_mode = QLA_ZIO_DISABLED;
-                break;
-        }
 
         /* Update per-hba values and queue a reset. */
         if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) {