sfc: XMAC statistics fix-ups

Exclude assumed size of RX control frames from rx_bad_bytes. Exclude assumed size of TX control frames from tx_good_bytes for consistency with rx_good_bytes. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
git-mirror · Sep 3, 2008 · c264361 · c264361
1 parent 5b39fe3
commit c264361
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
@@ -554,9 +554,11 @@ void falcon_update_stats_xmac(struct efx_nic *efx)
 
 	/* Update derived statistics */
 	mac_stats->tx_good_bytes =
-		(mac_stats->tx_bytes - mac_stats->tx_bad_bytes);
+		(mac_stats->tx_bytes - mac_stats->tx_bad_bytes -
+		 mac_stats->tx_control * 64);
 	mac_stats->rx_bad_bytes =
-		(mac_stats->rx_bytes - mac_stats->rx_good_bytes);
+		(mac_stats->rx_bytes - mac_stats->rx_good_bytes -
+		 mac_stats->rx_control * 64);
 }
 
 int falcon_check_xmac(struct efx_nic *efx)