netdev - Re: [PATCH net-2.6] net_sched: always clone skbs

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Date:	Tue, 21 Dec 2010 08:52:54 -0500
From:	jamal <hadi@...erus.ca>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	Changli Gao <xiaosuo@...il.com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Pawel Staszewski <pstaszewski@...are.pl>
Subject: Re: [PATCH net-2.6] net_sched: always clone skbs

On Tue, 2010-12-21 at 00:52 +0100, Jarek Poplawski wrote:


> 
> host1 (kernel 2.6.36.2)
> netperf client -> eth3 (82598EB 10-Gigabit AT CX4) - directly connected to eth2 of host2
> ethtool -k eth3
> Offload parameters for eth3:
> rx-checksumming: on
> tx-checksumming: on
> scatter-gather: on
> tcp-segmentation-offload: on
> udp-fragmentation-offload: off
> generic-segmentation-offload: on
> generic-receive-offload: on 

Use to be we couldnt get the ifb+mirred combo to work
with TSO even without this change - i will have to dig old emails
to remember details. So we are making progress;-> I did write a set
of rules in: Documentation/networking/tc-actions-env-rules.txt
Changli optimized rule #1. When i looked at his patch it seems
to not harm that case. Sometimes dumb is a good principle ;->

cheers,
jamal

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