diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 1e4cafabba152..2b499c7601ec8 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1732,7 +1732,7 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
 			fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN);
 	}
 
-	if (IS_QLA25XX(ha) && ql2xenabledif) {
+	if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
 		if (ha->fw_attributes & BIT_4) {
 			vha->flags.difdix_supported = 1;
 			DEBUG18(qla_printk(KERN_INFO, ha,
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index fa59181bcb02f..bc35ecfbc28fb 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1677,7 +1677,7 @@ static struct isp_operations qla81xx_isp_ops = {
 	.read_optrom		= qla25xx_read_optrom_data,
 	.write_optrom		= qla24xx_write_optrom_data,
 	.get_flash_version	= qla24xx_get_flash_version,
-	.start_scsi		= qla24xx_start_scsi,
+	.start_scsi		= qla24xx_dif_start_scsi,
 	.abort_isp		= qla2x00_abort_isp,
 };
 
@@ -2274,7 +2274,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
 	    base_vha->host_no, ha));
 
-	if (IS_QLA25XX(ha) && ql2xenabledif) {
+	if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif) {
 		if (ha->fw_attributes & BIT_4) {
 			base_vha->flags.difdix_supported = 1;
 			DEBUG18(qla_printk(KERN_INFO, ha,