e1000: omit stats for broken counter in 82543
The 82543 chip does not count tx_carrier_errors properly in FD mode;
report zeros instead of garbage.
Originally from Jesse Brandeburg <jesse.brandeburg@intel.com>, rewritten
to use feature flags by me.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 62ef267..0816de2 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -3581,6 +3581,11 @@
adapter->net_stats.tx_aborted_errors = adapter->stats.ecol;
adapter->net_stats.tx_window_errors = adapter->stats.latecol;
adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs;
+ if (adapter->hw.bad_tx_carr_stats_fd &&
+ adapter->link_duplex == FULL_DUPLEX) {
+ adapter->net_stats.tx_carrier_errors = 0;
+ adapter->stats.tncrs = 0;
+ }
/* Tx Dropped needs to be maintained elsewhere */