[PATCH v3 14/17] net/ngbe: fix incorrect device statistics

[Jiawen Wu]

The extend statistic "rx_undersize_errors" is incorrectly read as the
counter of frames received with a length error, which names
"rx_length_error". And "rx_undersize_errors" is the counter of
shorter-than-64B frames received without any errors.

In addition, "tx_broadcast_packets" should use rd64() to get the full
count on the low and high registers.

Fixes: fdb1e851975a ("net/ngbe: support basic statistics")
Cc: stable at dpdk.org

Signed-off-by: Jiawen Wu <jiawenwu at trustnetic.com>
---
 drivers/net/ngbe/ngbe_ethdev.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ngbe/ngbe_ethdev.c b/drivers/net/ngbe/ngbe_ethdev.c
index a8f847de8d..d3ac40299f 100644
--- a/drivers/net/ngbe/ngbe_ethdev.c
+++ b/drivers/net/ngbe/ngbe_ethdev.c
@@ -1429,7 +1429,7 @@ ngbe_read_stats_registers(struct ngbe_hw *hw,
 	hw_stats->rx_total_bytes += rd64(hw, NGBE_MACRXGBOCTL);
 
 	hw_stats->rx_broadcast_packets += rd64(hw, NGBE_MACRXOCTL);
-	hw_stats->tx_broadcast_packets += rd32(hw, NGBE_MACTXOCTL);
+	hw_stats->tx_broadcast_packets += rd64(hw, NGBE_MACTXOCTL);
 
 	hw_stats->rx_size_64_packets += rd64(hw, NGBE_MACRX1TO64L);
 	hw_stats->rx_size_65_to_127_packets += rd64(hw, NGBE_MACRX65TO127L);
@@ -1448,7 +1448,8 @@ ngbe_read_stats_registers(struct ngbe_hw *hw,
 	hw_stats->tx_size_1024_to_max_packets +=
 			rd64(hw, NGBE_MACTX1024TOMAXL);
 
-	hw_stats->rx_undersize_errors += rd64(hw, NGBE_MACRXERRLENL);
+	hw_stats->rx_length_errors += rd64(hw, NGBE_MACRXERRLENL);
+	hw_stats->rx_undersize_errors += rd32(hw, NGBE_MACRXUNDERSIZE);
 	hw_stats->rx_oversize_cnt += rd32(hw, NGBE_MACRXOVERSIZE);
 	hw_stats->rx_jabber_errors += rd32(hw, NGBE_MACRXJABBER);
 
-- 
2.48.1