netdev - Re: [PATCH net-next 3/3 RFC] pktgen: Allow sending TCP packets

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Message-Id: <20140625.174452.216399345748954052.davem@davemloft.net>
Date:	Wed, 25 Jun 2014 17:44:52 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	cwang@...pensource.com
Cc:	zoltan.kiss@...rix.com, steffen.klassert@...unet.com,
	minipli@...glemail.com, dborkman@...hat.com, tgraf@...g.ch,
	joe@...ches.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org
Subject: Re: [PATCH net-next 3/3 RFC] pktgen: Allow sending TCP packets

From: Cong Wang <cwang@...pensource.com>
Date: Wed, 25 Jun 2014 17:41:47 -0700

> On Wed, Jun 25, 2014 at 1:42 PM, Zoltan Kiss <zoltan.kiss@...rix.com> wrote:
>> This is a prototype patch to enable sending TCP packets with pktgen. The
>> original motivation is to test TCP GSO with xen-netback/netfront, but I'm not
>> sure about how the checksum should be set up, and also someone should verify the
>> GSO settings I'm using.
>>
> 
> What's the point of sending TCP packets since you don't establish a TCP
> connection?

I guess they want to test checksumming and aggregation, things like that.

The other side is of course going to spew reset packets back at the
pktgen machine.
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