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Date:	Mon, 18 Jun 2007 11:42:08 -0700
From:	PJ Waskiewicz <>
Subject: [PATCH] NET: Multiple queue hardware support

Please consider these patches for 2.6.23 inclusion.

This patchset is an updated version of previous multiqueue network device
support patches.  The general approach of introducing a new API for multiqueue
network devices to register with the stack has remained.  The changes include
adding a round-robin qdisc, heavily based on sch_prio, which will allow
queueing to hardware with no OS-enforced queuing policy.  sch_prio still has
the multiqueue code in it, but has a Kconfig option to compile it out of the
qdisc.  This allows people with hardware containing scheduling policies to
use sch_rr (round-robin), and others without scheduling policies in hardware
to continue using sch_prio if they wish to have some notion of scheduling

The patches being sent are split into Documentation, Qdisc changes, and
core stack changes.  The requested e1000 changes are still being resolved,
and will be sent at a later date.

I did not modify other users of netif_queue_stopped() in net/core/netpoll.c,
net/core/dev.c, or net/core/pktgen.c, since no classification occurs for
the skb being sent to the device.  Therefore, packets should always be
ending up in queue 0, so there's no need to check the subqueue status either.

The patches to iproute2 for tc will be sent separately, to support sch_rr.

PJ Waskiewicz <>
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