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net: Add netdev interfaces for recording sends/comp 

Add interfaces for drivers to call for recording number of packets and
bytes at send time and transmit completion.  Also, added a function to
"reset" a queue.  These will be used by Byte Queue Limits.

Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2011-11-28 16:32:52 +00:00 committed by David S. Miller
parent 7346649826
commit c5d67bd78c
1 changed files with 28 additions and 0 deletions
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28
include/linux/netdevice.h
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@ -1859,6 +1859,34 @@ static inline int netif_xmit_frozen_or_stopped(const struct netdev_queue *dev_qu
return dev_queue->state & QUEUE_STATE_ANY_XOFF_OR_FROZEN;
}
static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue,
unsigned int bytes)
{
}
static inline void netdev_sent_queue(struct net_device *dev, unsigned int bytes)
{
netdev_tx_sent_queue(netdev_get_tx_queue(dev, 0), bytes);
}
static inline void netdev_tx_completed_queue(struct netdev_queue *dev_queue,
unsigned pkts, unsigned bytes)
{
}
static inline void netdev_completed_queue(struct net_device *dev,
unsigned pkts, unsigned bytes)
{
netdev_tx_completed_queue(netdev_get_tx_queue(dev, 0), pkts, bytes);
}
static inline void netdev_tx_reset_queue(struct netdev_queue *q)
{
}
static inline void netdev_reset_queue(struct net_device *dev_queue)
{
netdev_tx_reset_queue(netdev_get_tx_queue(dev_queue, 0));
}
/**