diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 0cd3311409a82a1aef601c66f46c3c72fc244070..d8d7a4a8538fa5dc097026401469bc2b7a7ba8e5 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -78,6 +78,11 @@ static const struct be_ethtool_stat et_stats[] = {
 	 * fifo must never overflow.
 	 */
 	{DRVSTAT_INFO(rxpp_fifo_overflow_drop)},
+	/* Received packets dropped when the RX block runs out of space in
+	 * one of its input FIFOs. This could happen due a long burst of
+	 * minimum-sized (64b) frames in the receive path.
+	 * This counter may also be erroneously incremented rarely.
+	 */
 	{DRVSTAT_INFO(rx_input_fifo_overflow_drop)},
 	{DRVSTAT_INFO(rx_ip_checksum_errs)},
 	{DRVSTAT_INFO(rx_tcp_checksum_errs)},