diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet-tx.h')
| -rw-r--r-- | drivers/staging/octeon/ethernet-tx.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/staging/octeon/ethernet-tx.h b/drivers/staging/octeon/ethernet-tx.h index 5106236fe981..c0bebf750bc0 100644 --- a/drivers/staging/octeon/ethernet-tx.h +++ b/drivers/staging/octeon/ethernet-tx.h @@ -30,3 +30,28 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev); int cvm_oct_transmit_qos(struct net_device *dev, void *work_queue_entry, int do_free, int qos); void cvm_oct_tx_shutdown(struct net_device *dev); + +/** + * Free dead transmit skbs. + * + * @priv: The driver data + * @skb_to_free: The number of SKBs to free (free none if negative). + * @qos: The queue to free from. + * @take_lock: If true, acquire the skb list lock. + */ +static inline void cvm_oct_free_tx_skbs(struct octeon_ethernet *priv, + int skb_to_free, + int qos, int take_lock) +{ + /* Free skbuffs not in use by the hardware. */ + if (skb_to_free > 0) { + if (take_lock) + spin_lock(&priv->tx_free_list[qos].lock); + while (skb_to_free > 0) { + dev_kfree_skb(__skb_dequeue(&priv->tx_free_list[qos])); + skb_to_free--; + } + if (take_lock) + spin_unlock(&priv->tx_free_list[qos].lock); + } +} |