diff --git a/drivers/net/ethernet/nvidia/nvethernet/ether_tc.c b/drivers/net/ethernet/nvidia/nvethernet/ether_tc.c
index 4478a262..381c7c33 100644
--- a/drivers/net/ethernet/nvidia/nvethernet/ether_tc.c
+++ b/drivers/net/ethernet/nvidia/nvethernet/ether_tc.c
@@ -228,6 +228,9 @@ int ether_tc_setup_cbs(struct ether_priv_data *pdata,
 		ioctl_data.avb.oper_mode = OSI_MTL_QUEUE_AVB;
 		ioctl_data.avb.credit_control = OSI_ENABLE;
 	} else {
+	/* For EQOS harware library code use internally SP(0) and
+	   For MGBE harware library code use internally ETS(2) if
+	   algo != CBS. */
 		ioctl_data.avb.algo = OSI_MTL_TXQ_AVALG_SP;
 		ioctl_data.avb.oper_mode = OSI_MTL_QUEUE_ENABLE;
 		ioctl_data.avb.credit_control = OSI_DISABLE;
diff --git a/drivers/net/ethernet/nvidia/nvethernet/ptp.c b/drivers/net/ethernet/nvidia/nvethernet/ptp.c
index 3993e307..5aa334c9 100644
--- a/drivers/net/ethernet/nvidia/nvethernet/ptp.c
+++ b/drivers/net/ethernet/nvidia/nvethernet/ptp.c
@@ -377,6 +377,9 @@ static void ether_config_slot_function(struct ether_priv_data *pdata, u32 set)
 			       sizeof(struct osi_core_avb_algorithm));
 			qinx = osi_core->mtl_queues[i];
 			ioctl_data.avb.qindex = qinx;
+			/* For EQOS harware library code use internally SP(0) and
+			   For MGBE harware library code use internally ETS(2) if
+			   algo != CBS. */
 			ioctl_data.avb.algo = OSI_MTL_TXQ_AVALG_SP;
 			ioctl_data.avb.oper_mode = (set == OSI_ENABLE) ?
 						    OSI_MTL_QUEUE_AVB :