[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>
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 71b6bcc..ebc7c24 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1659,6 +1659,8 @@
 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
 		ha->flags.process_response_queue = 0;
 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
+			ha->zio_mode = QLA_ZIO_MODE_6;
+
 			DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
 			    "delay (%d us).\n", ha->host_no, ha->zio_mode,
 			    ha->zio_timer * 100));
@@ -3474,6 +3476,8 @@
 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
 	ha->flags.process_response_queue = 0;
 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
+		ha->zio_mode = QLA_ZIO_MODE_6;
+
 		DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
 		    "(%d us).\n", ha->host_no, ha->zio_mode,
 		    ha->zio_timer * 100));