From: John W. Linville <linville@tuxdriver.com>
Date: Mon, 12 Sep 2005 14:48:59 +0000 (-0400)
Subject: [PATCH] e100: correct rx_dropped and add rx_missed_errors
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ecf7130b087a9bd1b9d03dbf452630243210d22e;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] e100: correct rx_dropped and add rx_missed_errors

Do not count non-error frames dropped by the hardware as
part of rx_dropped. Instead, count those frames dropped as
rx_missed_errors. Also, do not count other error frames as part of
rx_dropped. Finally, do not count oversized frames in rx_dropped
(since they are counted as part of rx_length_errors).

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 25cc20e415da..fbf1c06ec5c1 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1387,13 +1387,13 @@ static void e100_update_stats(struct nic *nic)
 		ns->collisions += nic->tx_collisions;
 		ns->tx_errors += le32_to_cpu(s->tx_max_collisions) +
 			le32_to_cpu(s->tx_lost_crs);
-		ns->rx_dropped += le32_to_cpu(s->rx_resource_errors);
 		ns->rx_length_errors += le32_to_cpu(s->rx_short_frame_errors) +
 			nic->rx_over_length_errors;
 		ns->rx_crc_errors += le32_to_cpu(s->rx_crc_errors);
 		ns->rx_frame_errors += le32_to_cpu(s->rx_alignment_errors);
 		ns->rx_over_errors += le32_to_cpu(s->rx_overrun_errors);
 		ns->rx_fifo_errors += le32_to_cpu(s->rx_overrun_errors);
+		ns->rx_missed_errors += le32_to_cpu(s->rx_resource_errors);
 		ns->rx_errors += le32_to_cpu(s->rx_crc_errors) +
 			le32_to_cpu(s->rx_alignment_errors) +
 			le32_to_cpu(s->rx_short_frame_errors) +
@@ -1727,12 +1727,10 @@ static inline int e100_rx_indicate(struct nic *nic, struct rx *rx,
 
 	if(unlikely(!(rfd_status & cb_ok))) {
 		/* Don't indicate if hardware indicates errors */
-		nic->net_stats.rx_dropped++;
 		dev_kfree_skb_any(skb);
 	} else if(actual_size > ETH_DATA_LEN + VLAN_ETH_HLEN) {
 		/* Don't indicate oversized frames */
 		nic->rx_over_length_errors++;
-		nic->net_stats.rx_dropped++;
 		dev_kfree_skb_any(skb);
 	} else {
 		nic->net_stats.rx_packets++;