[dpdk-dev] [PATCH v2 1/1] ixgbe: Fix phy errors in stats->ierrors

[Maryam Tahhan <maryam.tahhan@intel.com>]

Fixes: f6bf669b990004dc69231476d9fcf0b80574e568. Bug fix to remove
(rxnfgpc - hw_stats->gprc) which does not account for phy errors.
hw_stats->gprc is the Number of good (non-erred) Rx packets (from the
network) that pass L2 filtering and has a legal length as defined by
LongPacketEnable. While rxnfgpc is the Number of good (non-erred with
legal length) Rx packets (from the network) regardless of packet
filtering and receive enablement. Thus hw_stats->gprc can be > rxnfgpc
and this calculation should be removed from the calculation of ierrors.
Validated with testpmd by sending packets to the interface without
forwarding enabled - packets should be dropped and the error counters
incremented.

v2:
 - specified the commit that this bug fix fixes.

Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 3a8cff0..09fac25 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -2143,8 +2143,7 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 	                  hw_stats->rfc +
 	                  hw_stats->rjc +
 	                  hw_stats->fccrc +
-	                  hw_stats->fclast +
-	                  (rxnfgpc - hw_stats->gprc); /* PHY Errors*/
+	                  hw_stats->fclast;
 
 	/* Tx Errors */
 	/*txdgpc: packets that are DMA'ed*/
-- 
2.4.3