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pkt_sched: Make qdisc_run take a netdev_queue.

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This allows us to use this calling convention all the way down into
qdisc_restart().

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-07-08 23:12:38 -07:00
parent 86d804e10a
commit eb6aafe3f8
3 changed files with 21 additions and 17 deletions
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8
include/net/pkt_sched.h
View file

@ -84,13 +84,15 @@ extern struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
struct nlattr *tab);
extern void qdisc_put_rtab(struct qdisc_rate_table *tab);
extern void __qdisc_run(struct net_device *dev);
extern void __qdisc_run(struct netdev_queue *txq);
static inline void qdisc_run(struct net_device *dev)
static inline void qdisc_run(struct netdev_queue *txq)
{
struct net_device *dev = txq->dev;
if (!netif_queue_stopped(dev) &&
!test_and_set_bit(__LINK_STATE_QDISC_RUNNING, &dev->state))
__qdisc_run(dev);
__qdisc_run(txq);
}
extern int tc_classify_compat(struct sk_buff *skb, struct tcf_proto *tp,

4
net/core/dev.c
View file

@ -1734,7 +1734,7 @@ int dev_queue_xmit(struct sk_buff *skb)
/* reset queue_mapping to zero */
skb_set_queue_mapping(skb, 0);
rc = q->enqueue(skb, q);
qdisc_run(dev);
qdisc_run(txq);
spin_unlock(&txq->lock);
rc = rc == NET_XMIT_BYPASS ? NET_XMIT_SUCCESS : rc;
@ -1930,7 +1930,7 @@ static void net_tx_action(struct softirq_action *h)
clear_bit(__LINK_STATE_SCHED, &dev->state);
if (spin_trylock(&txq->lock)) {
qdisc_run(dev);
qdisc_run(txq);
spin_unlock(&txq->lock);
} else {
netif_schedule_queue(txq);

26
net/sched/sch_generic.c
View file

@ -75,9 +75,8 @@ static inline int dev_requeue_skb(struct sk_buff *skb,
return 0;
}
static inline struct sk_buff *dev_dequeue_skb(struct net_device *dev,
struct netdev_queue *dev_queue,
struct Qdisc *q)
static inline struct sk_buff *dequeue_skb(struct netdev_queue *dev_queue,
struct Qdisc *q)
{
struct sk_buff *skb;
@ -90,10 +89,10 @@ static inline struct sk_buff *dev_dequeue_skb(struct net_device *dev,
}
static inline int handle_dev_cpu_collision(struct sk_buff *skb,
struct net_device *dev,
struct netdev_queue *dev_queue,
struct Qdisc *q)
{
struct net_device *dev = dev_queue->dev;
int ret;
if (unlikely(dev->xmit_lock_owner == smp_processor_id())) {
@ -139,21 +138,23 @@ static inline int handle_dev_cpu_collision(struct sk_buff *skb,
* >0 - queue is not empty.
*
*/
static inline int qdisc_restart(struct net_device *dev)
static inline int qdisc_restart(struct netdev_queue *txq)
{
struct netdev_queue *txq = &dev->tx_queue;
struct Qdisc *q = txq->qdisc;
struct sk_buff *skb;
int ret = NETDEV_TX_BUSY;
struct net_device *dev;
struct sk_buff *skb;
/* Dequeue packet */
if (unlikely((skb = dev_dequeue_skb(dev, txq, q)) == NULL))
if (unlikely((skb = dequeue_skb(txq, q)) == NULL))
return 0;
/* And release queue */
spin_unlock(&txq->lock);
dev = txq->dev;
HARD_TX_LOCK(dev, smp_processor_id());
if (!netif_subqueue_stopped(dev, skb))
ret = dev_hard_start_xmit(skb, dev);
@ -170,7 +171,7 @@ static inline int qdisc_restart(struct net_device *dev)
case NETDEV_TX_LOCKED:
/* Driver try lock failed */
ret = handle_dev_cpu_collision(skb, dev, txq, q);
ret = handle_dev_cpu_collision(skb, txq, q);
break;
default:
@ -186,11 +187,12 @@ static inline int qdisc_restart(struct net_device *dev)
return ret;
}
void __qdisc_run(struct net_device *dev)
void __qdisc_run(struct netdev_queue *txq)
{
struct net_device *dev = txq->dev;
unsigned long start_time = jiffies;
while (qdisc_restart(dev)) {
while (qdisc_restart(txq)) {
if (netif_queue_stopped(dev))
break;
@ -200,7 +202,7 @@ void __qdisc_run(struct net_device *dev)
* 2. we've been doing it for too long.
*/
if (need_resched() || jiffies != start_time) {
netif_schedule_queue(&dev->tx_queue);
netif_schedule_queue(txq);
break;
}
}