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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/sched/sch_atm.c
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@@ -296,7 +296,8 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
goto err_out;
}
flow->filter_list = NULL;
flow->q = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops, classid);
flow->q = qdisc_create_dflt(sch->dev, sch->dev_queue,
&pfifo_qdisc_ops, classid);
if (!flow->q)
flow->q = &noop_qdisc;
pr_debug("atm_tc_change: qdisc %p\n", flow->q);
@@ -555,7 +556,8 @@ static int atm_tc_init(struct Qdisc *sch, struct nlattr *opt)
pr_debug("atm_tc_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt);
p->flows = &p->link;
p->link.q = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops, sch->handle);
p->link.q = qdisc_create_dflt(sch->dev, sch->dev_queue,
&pfifo_qdisc_ops, sch->handle);
if (!p->link.q)
p->link.q = &noop_qdisc;
pr_debug("atm_tc_init: link (%p) qdisc %p\n", &p->link, p->link.q);