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.
Fixes: f6bf669b99 ("ixgbe: account more Rx errors")
Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
Acked-by: Balazs Nemeth <balazs.nemeth@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Tested-by: Marvin Liu <yong.liu@intel.com>
3c47efd90d