netdev - Re: TCP connection stops after high load.

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Date:	Sat, 14 Apr 2007 07:31:35 +0200
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	danielschaffrath@....com, greearb@...delatech.com,
	andi@...stfloor.org, netdev@...r.kernel.org, bcrl@...ck.org
Subject: Re: TCP connection stops after high load.

Herbert Xu a écrit :
> Eric Dumazet <dada1@...mosbay.com> wrote:
>> dev_queue_xmit_nit() is called before attempting to send packet to device.
>>
>> If device could not accept the packet (hard_start_xmit() returns an error), packet is requeued and retried later.
>> each retry means call ev_queue_xmit_nit() again, so tcpdump/sniffers can 'see' packet transmited several times. 
> 
> This should only happen with LLTX drivers.  In fact, LLTX drivers are
> really more trouble than they're worth.  They should all be rewritten
> to follow the model used in tg3.

When did tg3 model changed exactly ?

Because I remember having this 'problem' with tg3 devices not a long time ago...

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