be2net: add a description for counter rx_input_fifo_overflow_drop

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 0cd3311409a82a1aef601c66f46c3c72fc244070..d8d7a4a8538fa5dc097026401469bc2b7a7ba8e5 100644 (file)
--- 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)},