From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shan Wei Subject: Re: question about UFO behavior for bridge device Date: Sat, 14 May 2011 17:54:06 +0800 Message-ID: <4DCE513E.9040002@cn.fujitsu.com> References: <4DCCF803.5020805@cn.fujitsu.com> <1305292012.4065.441.camel@localhost> <20110513143627.GA29054@gondor.apana.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: netdev To: Herbert Xu , Ben Hutchings Return-path: Received: from cn.fujitsu.com ([222.73.24.84]:61498 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751860Ab1ENJyI (ORCPT ); Sat, 14 May 2011 05:54:08 -0400 In-Reply-To: <20110513143627.GA29054@gondor.apana.org.au> Sender: netdev-owner@vger.kernel.org List-ID: Herbert Xu wrote, at 05/13/2011 10:36 PM: > On Fri, May 13, 2011 at 02:06:52PM +0100, Ben Hutchings wrote: >> >>> But, actually, i saw original big skb in eth0's tcpdump file, but not segmented skbs. >>> The behavior is right or what we want? >>> Is there anything missed about my analysis? >> >> I assume that packet capturing is handled earlier in the transmit path. > > Yes it is. It's the same with TSO. Be cheated by tcpdump. :-( dev_queue_xmit_nit(skb, dev) which dumps packet to user is called before handling GSO segments. Thanks very much. -- Best Regards ----- Shan Wei