netdev - Re: UDP is bypassing qdisc statistics ....

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Date:	Tue, 1 Sep 2009 14:29:12 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Patrick McHardy <kaber@...sh.net>
cc:	Eric Dumazet <eric.dumazet@...il.com>,
	Mark Smith <lk-netdev@...netdev.nosense.org>,
	Jarek Poplawski <jarkao2@...il.com>, netdev@...r.kernel.org,
	davem@...ux-foundation.org
Subject: Re: UDP is bypassing qdisc statistics ....

On Tue, 1 Sep 2009, Patrick McHardy wrote:

> Christoph Lameter wrote:
> > Eric: This occurs with a Broadcom driver (bnx2). There is only one
> > network device up and the IP statistics are correctly incremented.
>
> That explains it. The bnx2 driver uses multiple TX queues, but
> tc_dump_qdisc() only dumps the statistics from queue number 0.
>
> Not sure whether we should sum them up or dump the statistics
> from each queue (or both). Summing them up avoids userspace
> visible changes when drivers are converted to multiq.

Well I have almost finished a /proc/net/qdisc_stats that shows *all*
qdisc queues. Did this primarily for debugging since I do not know too
much about the netlink stuff.


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