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| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2009-06-20 22:15:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-21 19:18:02 -0700 |
| commit | 7e23091347664bf357ca651545c93e99fafc7b40 (patch) | |
| tree | 8b8764a3fa55aabbae6fa4d04130ff422035ce47 /drivers/net/mlx4/en_tx.c | |
| parent | 6be832529a8129c9d90a1d3a78c5d503a710b6fc (diff) | |
| download | lwn-7e23091347664bf357ca651545c93e99fafc7b40.tar.gz lwn-7e23091347664bf357ca651545c93e99fafc7b40.zip | |
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/mlx4/en_tx.c')
| -rw-r--r-- | drivers/net/mlx4/en_tx.c | 15 |
1 files 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; } |