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net: bcmgenet: fix accounting of packet drops vs errors 

bcmgenet driver needs to separate packet drops from packet errors.

When the driver has to drop a *good* packet, due to lack of buffers or
replacement skbs, increment only dev->stats.[rx|tx]_dropped.

When the driver encounters a bad Rx packet or Tx error, increment only
dev->stats.[rx|tx]_errors + relevant detailed error counter.

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petri Gynther 2015-07-10 16:20:00 -07:00 committed by David S. Miller
parent 22401ff17f
commit c590032f9a
1 changed files with 0 additions and 4 deletions
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4
drivers/net/ethernet/broadcom/genet/bcmgenet.c
View File

@ -1230,7 +1230,6 @@ static struct sk_buff *bcmgenet_put_tx_csum(struct net_device *dev,
new_skb = skb_realloc_headroom(skb, sizeof(*status));
dev_kfree_skb(skb);
if (!new_skb) {
dev->stats.tx_errors++;
dev->stats.tx_dropped++;
return NULL;
}
@ -1465,7 +1464,6 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring,
if (unlikely(!skb)) {
dev->stats.rx_dropped++;
dev->stats.rx_errors++;
goto next;
}
@ -1493,7 +1491,6 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring,
if (unlikely(!(dma_flag & DMA_EOP) || !(dma_flag & DMA_SOP))) {
netif_err(priv, rx_status, dev,
"dropping fragmented packet!\n");
dev->stats.rx_dropped++;
dev->stats.rx_errors++;
dev_kfree_skb_any(skb);
goto next;
@ -1515,7 +1512,6 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring,
dev->stats.rx_frame_errors++;
if (dma_flag & DMA_RX_LG)
dev->stats.rx_length_errors++;
dev->stats.rx_dropped++;
dev->stats.rx_errors++;
dev_kfree_skb_any(skb);
goto next;