From 7e23091347664bf357ca651545c93e99fafc7b40 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin Date: Sat, 20 Jun 2009 22:15:31 +0000 Subject: [PATCH] mlx4_en: Counting all the dropped packets on the TX side Reporting the counter's value through 'ethtool -S' Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/mlx4/en_tx.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c index 5dc7466ad035..c0177c364bbf 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; } -- GitLab