net_sched: add classful multiqueue dummy scheduler

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This patch adds a classful dummy scheduler which can be used as root qdisc
for multiqueue devices and exposes each device queue as a child class.

This allows to address queues individually and graft them similar to regular
classes. Additionally it presents an accumulated view of the statistics of
all real root qdiscs in the dummy root.

Two new callbacks are added to the qdisc_ops and qdisc_class_ops:

- cl_ops->select_queue selects the tx queue number for new child classes.

- qdisc_ops->attach() overrides root qdisc device grafting to attach
  non-shared qdiscs to the queues.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2009-09-06 01:58:51 -07:00

parent 589983cd21

commit 6ec1c69a8f

5 changed files with 277 additions and 13 deletions

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4

include/net/sch_generic.h

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2

net/sched/Makefile

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18

net/sched/sch_api.c

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32

net/sched/sch_generic.c

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234

net/sched/sch_mq.c

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