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From: Patrick McHardy <kaber@trash.net>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>,
	shemminger@osdl.org, ranjitm@google.com, akpm@osdl.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] tcpdump may trace some outbound packets twice.
Date: Tue, 16 May 2006 03:17:59 +0200	[thread overview]
Message-ID: <44692847.4080100@trash.net> (raw)
In-Reply-To: <E1FfnZP-0003St-00@gondolin.me.apana.org.au>

Herbert Xu wrote:
> David S. Miller <davem@davemloft.net> wrote:
> 
>>Other implementation possibility suggestions welcome :-)
> 
> 
> I see two possibilities:
> 
> 1) Move the af_packet hook into the NIC driver.
> 2) Rethink the lockless tx setup.  If all NICs followed the tg3 and
>    replaced spin_lock_irqsave with spin_lock then we should be able
>    to go back to just using the xmit_lock.

3) Clone the skb and have dev_queue_xmit_nit() consume it.

That should actually be pretty easy.

  reply	other threads:[~2006-05-16  1:18 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-10 20:17 [PATCH] tcpdump may trace some outbound packets twice Ranjit Manomohan
2006-05-14 10:10 ` Andrew Morton
2006-05-14 15:58   ` Ranjit Manomohan
2006-05-14 20:42   ` David S. Miller
2006-05-15 21:19     ` Ranjit Manomohan
2006-05-15 21:26       ` David S. Miller
2006-05-15 21:41         ` Patrick McHardy
2006-05-15 23:11         ` Ranjit Manomohan
2006-05-15 23:41           ` Stephen Hemminger
2006-05-16  0:08             ` David S. Miller
2006-05-16  0:21               ` Patrick McHardy
2006-05-16  0:48                 ` Tom Young
2006-05-16  0:37               ` Herbert Xu
2006-05-16  1:17                 ` Patrick McHardy [this message]
2006-05-16  1:20                   ` Herbert Xu
2006-05-16  1:22                   ` Patrick McHardy
2006-05-16  4:18                     ` David S. Miller

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