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netdev: Create netdev_queue abstraction.

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A netdev_queue is an entity managed by a qdisc.

Currently there is one RX and one TX queue, and a netdev_queue merely
contains a backpointer to the net_device.

The Qdisc struct is augmented with a netdev_queue pointer as well.

Eventually the 'dev' Qdisc member will go away and we will have the
resulting hierarchy:

	net_device --> netdev_queue --> Qdisc

Also, qdisc_alloc() and qdisc_create_dflt() now take a netdev_queue
pointer argument.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-07-08 16:55:56 -07:00
parent e65d22e180
commit bb949fbd18
14 changed files with 74 additions and 29 deletions
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6
net/mac80211/wme.c
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@@ -359,7 +359,8 @@ static int wme_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
/* create child queues */
for (i = 0; i < QD_NUM(hw); i++) {
skb_queue_head_init(&q->requeued[i]);
q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
q->queues[i] = qdisc_create_dflt(qd->dev, qd->dev_queue,
&pfifo_qdisc_ops,
qd->handle);
if (!q->queues[i]) {
q->queues[i] = &noop_qdisc;
@@ -575,7 +576,8 @@ void ieee80211_install_qdisc(struct net_device *dev)
{
struct Qdisc *qdisc;
qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT);
qdisc = qdisc_create_dflt(dev, &dev->tx_queue,
&wme_qdisc_ops, TC_H_ROOT);
if (!qdisc) {
printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
return;