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authorYevgeny Petrilin <yevgenyp@mellanox.co.il>2009-06-20 22:15:31 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-21 19:18:02 -0700
commit7e23091347664bf357ca651545c93e99fafc7b40 (patch)
tree8b8764a3fa55aabbae6fa4d04130ff422035ce47 /drivers/net
parent6be832529a8129c9d90a1d3a78c5d503a710b6fc (diff)
mlx4_en: Counting all the dropped packets on the TX side
Reporting the counter's value through 'ethtool -S' Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/mlx4/en_tx.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index 5dc7466ad03..c0177c364bb 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -515,14 +515,12 @@ static int get_real_size(struct sk_buff *skb, struct net_device *dev,
else {
if (netif_msg_tx_err(priv))
en_warn(priv, "Non-linear headers\n");
- dev_kfree_skb_any(skb);
return 0;
}
}
if (unlikely(*lso_header_size > MAX_LSO_HDR_SIZE)) {
if (netif_msg_tx_err(priv))
en_warn(priv, "LSO header size too big\n");
- dev_kfree_skb_any(skb);
return 0;
}
} else {
@@ -622,7 +620,7 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
}
real_size = get_real_size(skb, dev, &lso_header_size);
if (unlikely(!real_size))
- return NETDEV_TX_OK;
+ goto tx_drop;
/* Allign descriptor to TXBB size */
desc_size = ALIGN(real_size, TXBB_SIZE);
@@ -630,8 +628,7 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
if (netif_msg_tx_err(priv))
en_warn(priv, "Oversized header or SG list\n");
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
+ goto tx_drop;
}
tx_ind = skb->queue_mapping;
@@ -657,8 +654,7 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
if (unlikely(!priv->port_up)) {
if (netif_msg_tx_err(priv))
en_warn(priv, "xmit: port down!\n");
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
+ goto tx_drop;
}
/* Track current inflight packets for performance analysis */
@@ -785,5 +781,10 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
mlx4_en_xmit_poll(priv, tx_ind);
return 0;
+
+tx_drop:
+ dev_kfree_skb_any(skb);
+ priv->stats.tx_dropped++;
+ return NETDEV_TX_OK;
}